JP7607417B2 - Disinfection Storage Cabinet - Google Patents

Description

The present invention relates to a disinfection storage cabinet that uses a heating device to heat and disinfect items such as tableware stored in a storage chamber inside the cabinet, and then uses a cooling device to cool the storage chamber to lower the temperature of the items.

In kitchen facilities such as hospitals, schools, and restaurants, disinfection storage cabinets are favored for use, in which dishes, chopsticks, knives, forks, and other items (hereafter referred to as "stored items") that have been washed and have water droplets on them are stored and then dried in a disinfected state. That is, disinfection storage cabinets are equipped with a heating device such as an electric heater and a blower fan that forcibly circulates the air heated by the heating device inside the cabinet, and the stored items with water droplets are heated to a high temperature with hot air to sterilize and dry them.

As shown in FIG. 11, a typical disinfection storage cabinet 10 has a circulation path 14 with a blower fan 28 and a storage room 16 for storing stored items, which are defined inside (inside) a housing (insulated box) 12 with a thermal insulation structure. The circulation path 14 is composed of an upper space 14a and side spaces 14b, 14b communicating with it, with the upper space 14a defined on the upper surface side of the top plate 22 of the storage room 16, and the side spaces 14b, 14b defined on the outer surface sides of both side plates 24, 24 facing each other in the width direction of the storage room 16. The storage room 16 communicates with the upper space 14a through an intake port 22a formed in the top plate 22, and communicates with the side spaces 14b, 14b through a plurality of blower ports 24a formed in the side plates 24, 24. The fan motor 29 that drives the blower fan 28 is disposed in a machine room 18 defined in the upper part of the housing 12.

In the upper space 14a of the circulation path 14, an electric heater 30, which is a heating device, is arranged so as to revolve around a blower fan 28. The blower fan 28 draws air from the storage room 16 into the upper space 14a through the suction port 22a, and brings the drawn-in air into contact with the electric heater 30. Therefore, the air drawn into the upper space 14a from the storage room 16 side by the operation of the blower fan 28 becomes hot air, flows into the side spaces 14b, 14b, and is blown out from the blower port 24a of the side panel 24 into the storage room 16, heating the stored items in the storage room 16.

The sterilization storage cabinet 10 is also provided with an exhaust duct 32 that connects the circulation path 14 to the outside of the cabinet, and this exhaust duct 32 is structured to be closed or opened by a damper 34. That is, the stored items are sterilized by closing the exhaust duct 32 and heating the stored items in a state in which moisture in the storage chamber 16 is not discharged to the outside. The stored items are also dried by opening the damper 34 of the exhaust duct 32 and heating the stored items in a state in which moisture in the storage chamber 16 is discharged to the outside.

In kitchen facilities, food storage and serving methods are sometimes used in which cooked ingredients (food) are once cooled to a chilled state, served on tableware, and then reheated at the time the food is served. In this case, it is desirable for the tableware to be sufficiently cold when the food is served. In contrast, in the sterilization storage cabinet 10 described above, it takes time for the stored items to cool sufficiently after sterilization and drying, and there is a problem in that cold tableware, etc. cannot be prepared quickly. For example, if the door is fully opened to allow outside air to enter the storage room 16, the time it takes for the stored items to cool can be shortened, but in this case the air from outside the cabinet will come into contact with the stored items in the storage room 16 that have been sterilized with great care, causing hygiene problems. Considering these circumstances, it is preferable to provide a cooling device to cool the inside of the cabinet in the sterilization storage cabinet 10.

JP 2003-310527 A

By equipping the disinfection storage cabinet 10 with a cooling device, the disinfection storage cabinet 10 can be operated to quickly cool the stored items, which are in a high temperature state after disinfection and drying, to the required temperature. However, as the temperature inside the cabinet drops, the outer surface of the disinfection storage cabinet 10 gradually cools, causing condensation to form around the opening (the opening for storing or removing the stored items) of the housing 12, which is opened and closed by the door. In this case, a possible countermeasure against condensation is to install an electric heater (hereinafter referred to as an "anti-condensation heater") around the periphery of the opening in the housing 12. Note that the anti-condensation heater can be, for example, a linear or band-shaped heater that can be bent and deformed, and can be arranged in a serpentine pattern so that it moves back and forth multiple times around the installation target around the periphery of the opening.

When installing multiple anti-condensation heaters, the cost per part can be reduced by using heaters with the same specifications (same shape and performance). However, even on the periphery of the air opening, the ease of cooling (tendency for temperature change (temperature drop)) during cooling operation varies depending on the position, and if you try to address this by arranging anti-condensation heaters with the same specifications for multiple installation targets around the periphery of the air opening, you will have to determine the specifications of the anti-condensation heater according to the temperature change tendency of one of the installation targets, and the other installation targets will be heated by the anti-condensation heater more than necessary during cooling operation. In other words, you will end up using an anti-condensation heater with excessive performance and excessive quality, which will ultimately result in waste in power consumption and parts costs.

The present invention has been proposed in consideration of the above-mentioned problems inherent in conventional disinfection storage cabinets, and aims to provide a disinfection storage cabinet that can prevent the occurrence of condensation associated with cooling operation at low cost.

In order to overcome the above problems and achieve the intended purpose, the first means comprises:
A disinfection storage cabinet in which a housing has a storage chamber for storing items and an air circulation path defined therein, a vent is formed to connect the storage chamber to the outside, the vent can be opened and closed with a door, and air heated by a heating device can be introduced from the circulation path into the storage chamber,
The storage compartment is provided with a cooling device capable of cooling the interior of the storage compartment, and the air cooled by the cooling device is configured to be introduced into the storage compartment through the circulation path.
The gist of the invention is that the housing is provided with anti-condensation heaters for multiple installation objects located around the door, the heaters having different heat generation amounts depending on the difference in the temperature change tendency of the installation objects during cooling operation.
According to this configuration , by providing anti-condensation heaters to multiple installation objects located around the door of the housing, it is possible to prevent condensation from occurring near the boundary between the housing and the door. In this case, by providing anti-condensation heaters with different heat values to each installation object according to the temperature change tendency of the installation object during cooling operation, it is possible to reduce component costs and wasteful power consumption.

The second means is
The door includes a left door that rotates about an axis along the left side of the passage opening, and a right door that rotates about an axis along the right side of the passage opening,
The housing is provided with an upper partition facing the upper edge of the back surface of both doors,
The gist of the invention is that the anti-condensation heater, which is to be installed on the upper partition, has a horizontal portion extending in the left-right direction along the upper end surfaces of both doors, and a vertical portion extending in the up-down direction along the joint between the two doors.
According to this configuration , during cooling operation, the horizontal portion of the condensation prevention heater can be heated to prevent condensation on the surface of the upper partition and the upper end face of the door, and the vertical portion of the condensation prevention heater can be heated to prevent condensation on the surface of the upper partition and the open end face of the door. In other words, the condensation prevention heater that is installed on the upper partition can prevent condensation around the door joints, making it possible to omit the installation of the condensation prevention heater on the door, thereby reducing costs and preventing the manufacturing process from becoming complicated.

The third means is
The housing includes a horizontal partition facing a side edge portion of a rear surface of the door and a side frame plate facing a side end surface of the door,
A packing disposed on the rear surface of the door is configured to come into contact with the horizontal partition when the door is closed,
The anti-condensation heater, which is to be installed on the horizontal partition, has a first vertical portion extending in the vertical direction in a position aligned with the back side of the gasket, and a second vertical portion extending in the vertical direction in a position aligned with the back side of the side frame plate, and the first and second vertical portions are arranged so as to follow the same plane of the horizontal partition.
With this configuration, during cooling operation, the occurrence of condensation on the horizontal partitions and the like can be effectively suppressed by heating the first vertical portion of the condensation prevention heater, and the occurrence of condensation on the side frame panels and the side end faces of the doors can be effectively suppressed by the second vertical portion of the condensation prevention heater. Since the condensation prevention heater is disposed so that the first and second vertical portions are along the same plane of the horizontal partition, the installation work of the condensation prevention heater is not complicated, and the installation state can be prevented from becoming unstable.

The fourth means is
Equipped with an internal temperature sensor that detects the internal temperature,
The gist of the present invention is that the anti-condensation heater installed on a specified installation object is activated in response to the internal temperature detected by the internal temperature sensor during cooling operation dropping to a specific temperature that is higher than the temperature that drops the surface temperature of the specified installation object to the dew point temperature.
According to this configuration , the condensation prevention heater installed on the specified installation target is activated when the temperature inside the cabinet drops to a specific temperature during cooling operation, so the operation time of the condensation prevention heater can be shortened to reduce power consumption during operation and the efficiency of cooling inside the cabinet is not excessively reduced. The specific temperature inside the cabinet is higher than the temperature at which the specified installation target reaches the dew point temperature, so the occurrence of condensation on the specified installation target can be sufficiently suppressed.

The fifth means is
The doors include a left door that rotates around an axis along the left side of the passage and a right door that rotates around an axis along the right side of the passage, and a partition piece is provided at the open end of one of the doors to close the joint between the two doors extending in the vertical direction from the inside of the storage room,
The gist of the invention is that a heat insulator is provided between the joints of the two doors and the surface of the partition piece.
With this configuration , condensation can occur on the partition piece due to contact with warm air from outside the cabinet that flows into the joint between the two doors. However, by placing the insulation between the joint between the two doors and the partition piece, it is possible to prevent the occurrence of such condensation with an inexpensive structure.

The sixth means is
The gist of the invention is that a plate- or sheet-shaped insulator is interposed between the metal plate forming the back surface of the door and other components of the door, and is arranged along the outer peripheral edge of the door.
According to this configuration , the temperature of the back surface of the door facing the storage room drops during cooling operation. In response to this, by disposing a plate-like or sheet-like insulator along the outer periphery of the door and interposing the insulator between the metal plate that forms the back surface of the door and the other components of the door, it is possible to prevent the temperature of the components from dropping due to contact with the metal plate, and to suppress the occurrence of condensation on the door.

The seventh means is
The door includes an inner plate disposed inside the door, a plate-shaped or sheet-shaped heat insulator, and a fixing member for fixing the heat insulator to the inner plate,
the fixing member has a fitting portion between a head on one end side and a threaded portion on the other end side, the fitting portion having a diameter larger than the threaded portion and smaller than the head;
The gist of the invention is that the insulation is positioned between the inner plate and the head with the threaded portion of the fixing member screwed into the inner plate, and is held in a state where the fitting portion is fitted into the inside of a fitting hole formed in the insulation.
According to this configuration , the fitting portion provided between the screw portion and the head of the fixing member is fitted into the fitting hole of the insulation for preventing condensation. That is, the fixing member holds the insulation in a space equivalent to the dimension of the fitting portion provided between the screw portion and the head, so the head of the fixing member does not press hard against the insulation and deform it. Therefore, it is possible to prevent the screw portion from loosening due to the restoring force of the insulation that is deformed by being pressed by the head of the fixing member, and the rigidity of the door can be maintained.

The eighth means is
The fitting hole is formed in a long hole shape along the longitudinal direction of the thermal insulator.
According to this configuration , by making the fitting hole of the insulator a long hole extending in the longitudinal direction of the insulator, the fixed state by the fixing member can be maintained well even if the insulator shrinks or warps due to temperature changes, etc.
The ninth means is
The door includes a left door that rotates about an axis along the left side of the passage opening, and a right door that rotates about an axis along the right side of the passage opening,
A partition piece is provided at the open end of one of the doors to close the joint between the two doors extending in the vertical direction from the inside of the cabinet, and when the one door is closed and the other door is closed, a packing arranged on the back surface of the other door comes into contact with the partition piece.
The gist of the present invention is that a sealing member is provided on the extended end side of the partition piece, which elastically contacts a portion of the back surface of the other door that is closer to the axis than the gasket.
According to this configuration , the seal member, in addition to the packing, seals the gap between the partition piece and the other door, thereby improving the airtightness between the open ends of both doors.
The tenth means is
the partition piece includes an extending base portion and an inclined portion extending obliquely from the extending base portion to the front side, and is bent so that the surfaces of the extending base portion and the inclined portion form an obtuse angle with each other;
The sealing member is arranged along the inclined portion of the partition piece, and one end side of the sealing member in the width direction elastically contacts a portion of the back surface of the other door that is closer to the axis than the gasket, while the other end side in the width direction is located closer to the interior side of the storage compartment than the extended base portion of the partition piece, so as to be able to change the air flow along the back surface of the door.
According to this configuration , the partition has an inclined portion that is bent at an obtuse angle to the extended base, thereby narrowing the range in which the packing can deform and increasing the contact area between the packing and the partition, thereby improving the airtightness between the open ends of both doors. In addition, the seal member changes the air flow along the back surface of the door, thereby suppressing the occurrence of condensation due to a drop in the temperature of the partition when cooling operation is performed. In addition, the cooling capacity during cooling operation and the heating capacity during disinfection and drying operation can be improved.
The eleventh means is
the partition piece includes an extending base portion and an inclined portion extending obliquely from the extending base portion to the front side, and is bent so that the surfaces of the extending base portion and the inclined portion form an obtuse angle with each other;
The sealing member has a plurality of parallel flexible plates spaced apart in the thickness direction, and one end side of each flexible plate in the width direction is configured to elastically contact a portion of the back surface of the other door that is closer to the axis than the gasket.
According to this configuration , by providing the partition piece with an inclined portion that is bent at an obtuse angle to the extended base portion, the range in which the packing can deform can be narrowed and the contact area between the packing and the partition piece can be increased, thereby improving the airtightness between the open ends of both doors. Also, by providing multiple flexible plates on the seal member to close the gap between the partition piece and the other door, the airtightness between the open ends of both doors can be improved.
The twelfth means is
a shielding plate disposed at a lower end of the rear surface of the door to close a gap between the door and a bottom plate of the housing;
The gist of the invention is that it is provided with an auxiliary shielding plate which covers the gap between the outer edge of the shielding plate and the back surface of the door.
According to this configuration , the shielding plate prevents the air inside the cabinet from leaking out through the gap between the bottom end of the door and the bottom plate, and the auxiliary shielding plate prevents the air inside the cabinet from leaking out through the gap between the upper edge of the shielding plate and the back surface of the door, thereby suppressing the occurrence of condensation due to a drop in temperature on the bottom end surface of the door and the bottom plate during cooling operation. Also, the cooling capacity during cooling operation and the heating capacity during disinfection and drying operation can be improved.

The disinfection storage cabinet of the present invention can prevent condensation caused by cooling operation at low cost.

FIG. 2 is a front view of the disinfection storage cabinet according to the first embodiment. FIG. 2 is a vertical sectional front view showing the internal structure of the upper part of the disinfection storage cabinet of FIG. 1. This is a state in which the door is removed from the disinfection storage cabinet of FIG. 1, and each cord heater installed in the vent forming portion of the housing is indicated by a dashed line. This is an upper portion of the passage opening portion in FIG. 3, and the position of the door is indicated by a two-dot chain line. 4 is a perspective view of a lower portion (bottom plate) of the passage forming portion in FIG. 3 as viewed from the right front. The specifications for the top heater, side heater and bottom heater are listed. 2A is a circuit diagram showing the electrical connection relationship in the sterilization storage cabinet of FIG. 1 , and FIG. 2B is a flow chart showing the control contents during cooling operation by the control means. FIG. 2 is a cross-sectional plan view showing the relationship between the left and right doors of the disinfection storage cabinet in FIG. 1 and the side of the passage opening portion. In addition, the first fixing member for fixing the first and third heat insulators to the right inner plate of the left door and the second fixing member for fixing the second heat insulator to the left inner plate of the left door are shown enlarged. FIG. 11 is a perspective view of the first insulator from the right front. FIG. 11 is a cross-sectional plan view showing the left front part of the disinfection storage cabinet according to the second embodiment. FIG. 1 is an explanatory diagram showing the internal structure of a typical disinfection storage cabinet. FIG. 11 is a cross-sectional plan view of the open ends of both closed doors in a disinfection storage cabinet according to Example 3. FIG. 11 is a front view showing the open end side of the left door in the third embodiment. 11 is a plan view of the open ends of both doors in a disinfection storage cabinet according to Example 4, where (a) shows the state just before the right door, which is moving from an open state to a closed position, reaches the closed position, and (b) shows the state when the right door has reached the closed position. FIG. 13 is a plan view showing the open ends of both closed doors in a disinfection storage cabinet according to Example 5. 13A is a plan view of the open ends of both doors in a disinfection storage cabinet according to Example 6, where (a) shows the state just before the right door, which is moving from an open state to a closed position, reaches the closed position, and (b) shows the state when the right door has reached the closed position. FIG. 13 is a vertical cross-sectional side view showing the relationship between the lower end of the door and the bottom plate of the housing in the disinfection storage cabinet according to Example 7. FIG. 13 is a longitudinal front view of the lower right corner of the disinfection storage cabinet according to Example 8. 13A is a perspective view of a connecting machine according to a ninth embodiment of the present invention as viewed from the upper right, and FIG. 13B is a perspective view of two disinfection storage cabinets separated from each other.

Next, the disinfection storage cabinet according to the present invention will be described in detail with reference to the attached drawings, showing preferred embodiments. The same names and reference symbols are used for structures common to the disinfection storage cabinet 10 described with reference to FIG. 11, and detailed descriptions will be omitted. In the following description, the "left" and "right" are indicated according to the state in which the disinfection storage cabinet 10 is viewed from the front (front side) as shown in FIG. 1. In addition, when describing the front and back of a member in the following description, the outside of the cabinet is the "front side" and the inside of the cabinet (the storage chamber 16 side) is the "back side". For example, the front side (outside of the cabinet) of the doors 20A and 20B (described later) provided on the front side of the storage chamber 16 is the "front side" and the rear side (inside of the cabinet) is the "back side". Note that the doors 20A and 20B may be provided on the rear side of the storage chamber 16 (the rear end of the housing 12), in which case the rear side (outside of the cabinet) is the "front side" and the front side (inside of the cabinet) is the "back side".

(Overall configuration of disinfection storage cabinet 10)
As described above, the disinfection storage cabinet 10 has a storage chamber 16 for storing items (items) such as tableware to be disinfected and dried, which is defined inside (inside) the rectangular box-shaped housing 12. The storage chamber 16 is connected to the outside (outside) through a passage 50a formed at the front end of the housing 12. As shown in FIG. 1, the front end of the housing 12 is provided with doors (left door 20A and right door 20B) for opening and closing the passage 50a (see FIG. 3) (hereinafter, the part of the front end of the housing 12 that forms the passage 50a may be referred to as the "passage forming part 50"). The disinfection storage cabinet 10 of the first embodiment is a so-called cart-in type disinfection storage cabinet in which a tableware cart (cart) carrying stored items is carried into the storage chamber 16, and the stored items on the tableware cart are disinfected and dried by the operation of the electric heater (heating device) 30. That is, the passage 50a is used as an entrance and exit when carrying the tableware cart into and out of the storage chamber 16.

As shown in FIG. 2, the sterilization storage cabinet 10 of the first embodiment is equipped with a refrigeration mechanism R. The refrigeration mechanism R is a ring-shaped connection of a compressor, a condenser, an expansion valve, etc., and an evaporator 36 as a cooling device for cooling the interior of the cabinet, with most of the refrigeration mechanism R except for the evaporator 36 being disposed in the machine room 18. This refrigeration mechanism R has multiple evaporators 36 (specifically, two), and each evaporator 36 is disposed in the upper space 14a of the circulation path 14 (more specifically, on both the left and right sides of the blower fan 28). An electric heater 30 is provided on the outer periphery of the upper space 14a, and each evaporator 36 is located on the inner periphery of the electric heater 30.

(Opening forming portion 50)
As shown in Fig. 3, the through-hole forming portion 50 of the housing 12 is provided with a columnar upper partition 52 extending left and right to form the upper edge of the opening of the through-hole 50a, and a columnar horizontal partition 53 extending up and down to form the side edge of the opening of the through-hole 50a. The bottom plate 26 forming the bottom surface of the storage chamber 16 does not have any partitions such as the upper partition 52 or the horizontal partition 53 protruding therefrom. Therefore, the lower edge of the through-hole 50a is formed on the same plane as the bottom surface of the storage chamber 16 by the flat bottom plate 26. A left door 20A that rotates around an axis along the left side (side edge) of the through-hole 50a and a right door 20B that rotates around an axis along the right side (side edge) of the through-hole 50a are provided inside the frame-shaped portion (peripheral frame 51) in front of the upper partition 52 and the horizontal partition 53 of the through-hole forming portion 50.

As shown in FIG. 3, the outer frame 51 includes an upper frame plate 51T that faces the upper end surface 61 of the doors 20A and 20B, and a side frame plate 51S that faces the side end surface 62 on the shaft side of the doors 20A and 20B. In addition, the front end portion of the bottom plate 26 (specifically, the area forward of the horizontal partition 53) functions as the portion of the outer frame 51 that faces the lower end surface 64 of the doors 20A and 20B.

The upper partition 52 and the horizontal partition 53 are adjacent to the outer edge of the doors 20A and 20B when the passage opening 50a is closed from the back side. Specifically, the surface of the front plate 52a of the upper partition 52 faces the upper edge of the back side of the doors 20A and 20B, and the surface of the front plate 53a of the horizontal partition 53 faces the side edge (axis side) of the back side of the doors 20A and 20B. The upper partition 52 (surface of the front plate 52a) faces the gap between the upper end surface 61 of the doors 20A and 20B and the upper frame plate 51T from the back side. The horizontal partition 53 (surface of the front plate 53a) faces the side end surface 62 of the axis side of the doors 20A and 20B and the gap between the side frame plate 51S from the back side. The upper partition 52 forms the front wall of the upper space 14a in the circulation path 14. As mentioned above, the upper space 14a is equipped with a blower fan 28 and an evaporator 36, so the upper partition 52 is easily cooled during cooling operation.

In addition, a packing P is provided along the outer periphery of the back surface of the aforementioned doors 20A, 20B (shown by a dashed line in FIG. 1), and when the doors 20A, 20B are closed, the packing P comes into contact with the upper partition 52 and the horizontal partition 53 to block the gap between the back surface of the doors 20A, 20B and the passage forming portion 50. In addition, a packing P is not provided on the lower edge of the back surface of the doors 20A, 20B, and instead, a thin plate-like shielding plate 38 (see FIG. 1) is arranged to hang down toward the bottom plate 26. When the doors 20A, 20B are closed, the lower edge side of the shielding plate 38 comes into contact with the bottom plate 26, and the shielding plate 38 is positioned so as to block the gap between the lower end surface of the doors 20A, 20B and the bottom plate 26 from the back side.

(Code heaters 71, 72, 73)
As described above, in the disinfection storage cabinet 10, the air outside the cabinet contacts the upper partition 52 and the horizontal partition 53 through the gap between the upper end surface 61 and the side end surface 62 of the doors 20A, 20B and the outer peripheral frame 51 of the housing 12. The upper partition 52 and the horizontal partition 53 are lowered in temperature due to the effect of cooling operation, so condensation may occur when warm air from outside the cabinet comes into contact with them. In addition, the temperature around the bottom plate 26 of the storage chamber 16 is likely to drop during cooling operation due to the nature of cold air moving downward. For this reason, condensation may occur when warm air from outside the cabinet comes into contact with the lower end surface 64 of the doors 20A, 20B or the front part 26a of the bottom plate 26. Therefore, in the first embodiment, electric heaters for preventing condensation (heaters for preventing condensation) are installed on each of the installation targets (the upper partition 52, the left and right horizontal partitions 53, 53, and the bottom plate 26) located around the doors 20A, 20B of the housing 12. In the first embodiment, bendable linear cord heaters 71, 72, and 73 are provided at the installation targets 52, 53, and 26, respectively, as dew condensation prevention heaters.

As shown in Fig. 3, the cord heaters 71, 72, 73 are an upper edge heater 71 (corresponding to the upper edge of the doors 20A, 20B) for installation on the upper partition 52, a side edge heater 72 (corresponding to the side edge of the doors 20A, 20B) for installation on the horizontal partition 53, and a lower edge heater 73 (corresponding to the lower edge of the doors 20A, 20B) for installation on the front part 26a of the bottom plate 26. The upper edge heater 71 (see Fig. 4) is affixed to the back surface of the front plate 52a of the upper partition 52, and the side edge heater 72 (see Figs. 4 and 5) is affixed to the back surface of the front plate 53a of the horizontal partition 53. The lower edge heater 73 (see Fig. 5) is affixed to the front part of the lower surface of the bottom plate 26 (the lower surface of the front part 26a). That is, the cord heaters 71, 72, and 73 are installed around the doors 20A and 20B (passage opening portion 50) in the housing 12, in close proximity to the outer peripheral end faces 61, 62, 63, and 64 of the doors 20A and 20B.

In the disinfection storage cabinet 10 of Example 1, the heat generation amount of each cord heater 71, 72, 73 is determined taking into consideration the difference in the temperature change tendency (temperature drop tendency, i.e., ease of cooling by cooling operation) during cooling operation in the installation target (upper partition 52, horizontal partition 53, bottom plate 26) of the cord heaters 71, 72, 73. Note that the same material and thickness are used for each cord heater 71, 72, 73, but the overall heat generation amount is made different by making the total length different. Specifically, as shown in FIG. 6, a cord heater with a power consumption of 40.0 W is adopted as the upper edge heater 71, a cord heater with a power consumption of 28.0 W is adopted as the side edge heater 72, and a cord heater with a power consumption of 60.0 W is adopted as the lower edge heater 73. The overall length of the upper heater 71 is 2.5 m, the side heater 72 is 1.8 m, and the lower heater 73 is 3.8 m; they are all different.

Here, the upper partition 52 is the front wall of the upper space 14a as described above, and therefore the temperature is likely to drop during cooling operation. On the other hand, the horizontal partition 53 is located in front of the side space 14b, and the temperature drop during cooling operation is smaller than that of the upper partition 52. Therefore, when the surface temperatures of the upper partition 52 and the horizontal partition 53 are measured during cooling operation, the surface temperature of the upper partition 52 is lower than the surface temperature of the horizontal partition 53. In other words, the upper partition 52, which is the installation target of the upper edge heater 71, and the horizontal partition 53, which is the installation target of the side edge heater 72, have different temperature change trends during cooling operation. In contrast, in the disinfection storage cabinet 10 of Example 1, the heat generation amount of the upper edge heater 71 is made larger than the heat generation amount of the side edge heater 72 in accordance with the difference in the temperature change trends during cooling operation in the upper partition 52 and the horizontal partition 53.

In addition, since cold air moves downward inside the cabinet, the temperature of the bottom plate 26 located below the storage chamber 16 is more likely to drop than that of the horizontal partition 53. Therefore, when the surface temperatures of the bottom plate 26 (front portion 26a) and the horizontal partition 53 are measured during cooling operation, the surface temperature of the bottom plate 26 (front portion 26a) is lower than the surface temperature of the horizontal partition 53. In other words, the front portion 26a of the bottom plate 26, which is the installation target of the bottom heater 73, and the horizontal partition 53, which is the installation target of the side heater 72, have different temperature change trends during cooling operation. In contrast, in the disinfection storage cabinet 10 of Example 1, the heat generation amount of the bottom heater 73 is made larger than the heat generation amount of the side heater 72 in accordance with the difference in the temperature change trends during cooling operation in the front portion 26a of the bottom plate 26 and the horizontal partition 53.

In this way, in the disinfection storage cabinet 10 of Example 1, by providing cord heaters (heaters for preventing condensation) 71, 72, 73 on the upper partition 52, horizontal partition 53, and front part 26a (multiple installation targets) of the bottom plate 26 located around the doors 20A, 20B in the housing 12, it is possible to prevent condensation from occurring near the boundary between the housing 12 (passage forming part 50) and the doors 20A, 20B. In this case, by arranging cord heaters 71, 72, 73 with different heat values on each installation target 52, 53, 26a according to the difference in the temperature change tendency of the installation targets 52, 53, 26a during cooling operation, it is possible to reduce component costs and wasteful power consumption.

The dimension (left-right dimension) w2 in the short side direction of the horizontal partition 53 on which the side heater 72 is to be installed is narrow, and the horizontal partition 53 is elongated in the vertical direction. Therefore, the side heater 72 is provided in a single straight line (as a single straight line portion 72a) extending in the longitudinal direction (vertical direction) of the horizontal partition 53. In contrast, the short side dimensions w1 and w3 of the upper partition 52 on which the upper heater 71 is to be installed and the front part 26a of the bottom plate 26 on which the lower heater 73 is to be installed are relatively large. Therefore, the upper heater 71 and the lower heater 73 are arranged so that the straight line portions 71a, 71b, 71c, 73a, 73b, 73c extending in the longitudinal direction (left-right direction) of the upper partition 52 and the front part 26a of the bottom plate 26 are lined up in multiple positions in the short side direction of each installation target 52, 26a.

(Upper edge heater 71 prevents condensation at the joints of doors 20A and 20B)
Here, the shape and position of the above-mentioned upper edge heater 71 in the installed state will be described in more detail with reference to Figures 3 and 4. The upper edge heater 71 is composed of a first horizontal portion 71a extending slightly upward along the upper end surface 61 of the doors 20A and 20B, a second horizontal portion 71b and a third horizontal portion 71c extending slightly downward along the upper end surface 61 of the doors 20A and 20B, a first return portion 71d connecting the right ends of the first and second horizontal portions 71a and 71b, and a bypass portion 71e connecting the left end of the second horizontal portion 71b and the right end of the third horizontal portion 71c.

Between the side end faces 63, 63 of the open end side of the left door 20A and the right door 20B, a space extending in the vertical direction (hereinafter referred to as "seam S") is formed. Here, the bypass portion 71e of the upper edge heater 71 has a left vertical portion 71e1 that extends in the vertical direction along the side end face 63 of the open end side of the left door 20A (along the left side of the seam S) and a right vertical portion 71e3 that extends in the vertical direction along the side end face 63 of the open end side of the right door 20B (along the right side of the seam S), and the lower end of the left vertical portion 71e1 and the lower end of the right vertical portion 71e3 are connected via a second return portion 71e2 that crosses the seam S.

In this way, in the disinfection storage cabinet 10 of Example 1, the upper edge heater 71 corresponding to the upper edges of the doors 20A and 20B has horizontal portions 71a, 71b, and 71c extending in the left-right direction along the upper end surfaces 61 of the doors 20A and 20B, and vertical portions 71e1 and 71e3 extending in the up-down direction along the joints S of the doors 20A and 20B, so that the heating of the horizontal portions 71a, 71b, and 71c of the upper edge heater 71 can prevent condensation on the surface of the upper partition 52 and the upper end surfaces 61 of the doors 20A and 20B. In addition, the heating of the vertical portions 71e1 and 71e3 of the upper edge heater 71 can effectively prevent condensation on the surface of the upper partition 52 and the side end surfaces 63 on the open end side of the doors 20A and 20B. In other words, the top edge heater 71 can prevent condensation around the joints S of the doors 20A and 20B, making it possible to omit the installation of cord heaters on the (open ends of) the doors 20A and 20B, reducing costs and preventing the manufacturing process from becoming complicated.

(Control of cord heaters 71, 72, 73)
Next, referring to FIG. 7, the control of the cord heaters 71, 72, and 73 described above will be described. As shown in FIG. 7(a), the control means 100 provided in the disinfection storage cabinet 10 is electrically connected to the electric heater 30, the fan motor 29, the damper 34, and the refrigeration mechanism R. Then, in the disinfection operation for disinfecting the stored items in the storage room 16, the electric heater 30 and the fan motor 29 are operated while maintaining the closed state of the exhaust duct 32 (the damper 34 is in the off state). Also, in the drying operation for drying the disinfected stored items, the damper 34 is turned on to open the exhaust duct 32 while continuing the operating state of the electric heater 30 and the fan motor 29. Then, after the disinfection and drying operation is completed, the refrigeration mechanism R is controlled to perform a cooling operation for cooling the inside of the storage room 16 (the stored items) in a high temperature state. Here, the control means 100 is also electrically connected to the above-mentioned upper edge heater 71, side edge heater 72, and lower edge heater 73, and the inside temperature sensor 101 for detecting the inside temperature.

The dew point under the harshest conditions (specifically, an environment of 70% relative humidity and 35°C room temperature) assumed as the use environment of the disinfection storage cabinet 10 of Example 1 is 28.7°C. The housing 12 of the disinfection storage cabinet 10 has a heat insulating performance such that when the internal temperature detected by the internal temperature sensor 101 during the cooling operation after the disinfection and drying operation drops to 20°C, the surface temperature of the upper partition 52 (front plate 52a) on which the above-mentioned upper edge heater 71 is installed becomes about 30°C (a temperature slightly higher than the dew point temperature). The horizontal partition 53 and bottom plate 26 (front part 26a) on which the above-mentioned side heater 72 and lower edge heater 73 are installed maintain a surface temperature higher than 30°C when the internal temperature becomes 20°C. That is, even in a harsh environment, the disinfection storage cabinet 10 is unlikely to develop condensation on the upper partition 52, the horizontal partition 53, and the front part 26a of the bottom plate 26 until the temperature inside the cabinet falls below 20°C (a specific temperature higher than the temperature that reduces the surface temperature of the upper partition 52 to the dew point temperature). Therefore, the control means 100 does not operate the upper edge heater 71, the side edge heater 72, and the lower edge heater 73 from the start of the cooling operation, but operates them when the temperature inside the cabinet drops to a specific temperature (20°C).

As shown in FIG. 7(b), when the control means 100 starts the cooling operation (step S1), it monitors the inside temperature detected by the inside temperature sensor 101. Then, it determines whether the inside temperature has dropped to a specific temperature (20°C) (step S2). In this case, if the inside temperature has dropped to the specific temperature, it activates the top edge heater 71, the side edge heater 72, and the bottom edge heater 73, which have been kept in an inactive state (step S3). Then, when the timing for ending the cooling operation arrives (when an operation to end the operation is performed, etc.) (step S4), the cooling operation ends (step S5).

In this way, the control means 100 of the disinfection storage cabinet 10 operates the top heater 71, the side heater 72, and the bottom heater 73 in response to the temperature inside the cabinet dropping during cooling operation and reaching a specific temperature of 20°C. This shortens the operating time of the top partition 52, the side partition 53, and the front part 26a of the bottom plate 26, thereby reducing power consumption during operation of the disinfection storage cabinet 10 and preventing excessive reduction in the efficiency of cooling inside the cabinet. Note that the specific temperature in the cabinet is higher than the temperature at which the top partition 52 (front plate 52a) reaches the dew point temperature, so that the occurrence of condensation on the top partition 52 can be sufficiently suppressed. Similarly, the specific temperature in the cabinet is higher than the temperature at which the side partition 53 (front plate 53a) and the front part 26a of the bottom plate 26 reach the dew point temperature, so that the occurrence of condensation on the top partition 52 and the front part 26a of the bottom plate 26 can be sufficiently suppressed.

(First to third insulators 91, 92, 93)
Next, the condensation prevention configuration (countermeasures against condensation other than the cord heaters 71, 72, 73) provided on the doors 20A and 20B will be described with reference to Figures 8 and 9. The schematic configuration of the left door 20A and the right door 20B will be described first, and then the first to third heat insulators 91, 92, 93 will be described.

As shown in FIG. 8, the left door 20A and the right door 20B are configured into a box shape using multiple metal sheets 65, 66, 67, and a heat insulating material 69 is provided in the internal space. A right inner plate (target portion) 81 into which the threaded portion 86 of the first fixing member 83 described later is screwed is provided at each open end of the left door 20A and the right door 20B, and a left inner plate (target portion) 82 into which the threaded portion 86 of the second fixing member 84 described later is screwed is provided at each shaft side end of the left door 20A and the right door 20B.

At the open end of the left door 20A, a partition piece 70 that extends vertically and blocks the joint S of the doors 20A and 20B from the inside of the cabinet is formed by the metal plate 67 of the doors 20A and 20B. The partition piece 70 is composed of a first extension part 70a that extends toward the inside of the cabinet and a second extension part 70b that extends from the first extension part 70a to the right (towards the right door 20B). In other words, the joint S is located on the front side of the second extension part 70b, and the storage room 16 is located on the back side. Since the packing P is provided at the open end of the right door 20B so as to extend vertically, when the right door 20B is closed with the left door 20A closed, the packing P of the right door 20B comes into contact with the right end part of the partition piece 70.

The temperature of the metal sheet 66 forming the back surface of the doors 20A, 20B facing the storage room 16 drops during cooling operation. When the components of the doors 20A, 20B (e.g., metal sheet 65) or the internal space of the doors 20A, 20B cool due to the influence of the metal sheet 66, condensation may occur on the outer surfaces of the doors 20A, 20B exposed to the outside of the storage room. Condensation may also occur on the parts of the metal sheets 65, 66 located around the joint S (the right end of the metal sheet 65 and the partition piece 70 of the metal sheet 67) due to contact with the warm air outside the storage room that flows into the joint S of the doors 20A, 20B. To prevent this, first to third heat insulators 91, 92, 93 for preventing condensation are installed at appropriate positions on the left door 20A and the right door 20B.

The first heat insulator 91 (see Figs. 1 and 8) is a plate-like member made of synthetic resin material, and is provided on the outer surfaces of the open end side and the lower end side of the left door 20A and the right door 20B in the sheet metal 65, respectively, to form the side end surface 63 and the lower end surface 64 of the open end side of the doors 20A and 20B. The second heat insulator 92 (see Fig. 8) is a sheet-like member made of a material (e.g., silicon) that can withstand high temperatures during disinfection and drying operation and low temperatures during cooling operation, and is provided on the outer peripheral edge of the surface of the sheet metal 66 of the left door 20A and the right door 20B, respectively. Furthermore, the third heat insulator 93 (see Figs. 1 and 8) is a plate-like member made of synthetic resin material, a part of which is fixed to the inner side of the open end of the left door 20A, and another part of which covers the partition piece 70 of the left door 20A. In addition, the first insulator 91 and the third insulator 93 are made of a hard material (synthetic resin) taking into consideration that they will be exposed to the outside.

As shown in FIG. 8, the first heat insulator 91 and the third heat insulator 93 are fixed to the right inner plate 81 by the first fixing member 83 at the open end of the door 20A, 20B. The first fixing member 83 is a screw member having a head 85 at one end in the longitudinal direction and a threaded portion 86 at the other end. However, as is clear from the enlarged view in FIG. 8, a fitting portion 87 having a larger diameter than the threaded portion 86 and a smaller diameter than the head 85 is provided between the head 85 and the threaded portion 86. Here, the first heat insulator 91 has long hole-shaped fitting holes 91a (see FIG. 9(a)) extending in the longitudinal direction (up and down direction) at multiple locations spaced apart in the longitudinal direction of the first heat insulator 91. The fitting holes 91a are provided with a width dimension (see FIG. 8) smaller than the diameter dimension of the head 85 of the first fixing member 83 and slightly larger than the diameter dimension of the fitting portion 87. The third insulator 93 has circular fitting holes 93a (see FIG. 8) at multiple locations spaced apart in the longitudinal direction of the third insulator 93. The fitting holes 93a are provided with a diameter smaller than the diameter of the head 85 of the first fixing member 83 and slightly larger than the diameter of the fitting portion 87 (see FIG. 8). The first insulator 91 and the third insulator 93 are fixed in a state in which the screw portion 86 of the first fixing member 83 is screwed into the right inner plate 81 and is located between the right inner plate 81 and the head 85, with the fitting portion 87 fitted inside the fitting holes 91a and 93a.

Similarly to the first fixing member 83, the second fixing member 84 is a screw member having a head 85 at one end in the longitudinal direction and a threaded portion 86 at the other end, and a fitting portion 87 having a diameter larger than the threaded portion 86 and smaller than the head 85 is provided between the head 85 and the threaded portion 86. The second heat insulator 92 has circular fitting holes 92a with a diameter smaller than the diameter of the head 85 of the second fixing member 84 and slightly larger than the diameter of the fitting portion 87 at multiple locations spaced apart in the longitudinal direction of the second heat insulator 92 (see FIG. 8). The second heat insulator 92 is fixed between the left inner plate 82 and the head 85 with the threaded portion 86 of the second fixing member 84 screwed into the left inner plate 82, and the fitting portion 87 fitted inside the fitting hole 92a.

In this way, in the disinfection storage cabinet 10 of Example 1, the first fixing member 83 and the second fixing member 84 hold the insulators 91, 92, 93 in the space of the dimension of the fitting portion 87 provided between the screw portion 86 and the head 85, so that the head 85 of the fixing members 83, 84 does not strongly press the insulators 91, 92, 93 and deform them. Therefore, it is possible to prevent the screw portion 86 from loosening due to the restoring force of the insulators 91, 92, 93 that are pressed and deformed by the head 85 of the fixing members 83, 84, and the rigidity of the doors 20A, 20B can be maintained. In addition, by making the fitting hole 91a of the first insulator 91 an elongated hole extending in the longitudinal direction of the first insulator 91, the fixed state by the first fixing member 83 can be well maintained even if the first insulator 91 shrinks or warps due to temperature changes, etc. Furthermore, the sheet-like second insulation 92 is sandwiched between the metal plate 66 that forms the back surface of the doors 20A and 20B and the left inner plate 82, and is arranged along the surface of the metal plate 66, thereby preventing condensation from forming on the surfaces of the doors 20A and 20B.

The metal sheet 65 forming the surface of the left door 20A has its left end bent into a U-shape in cross section as shown in FIG. 8, so that one part forms the side end face 62 on the shaft side of the left door 20A and one part forms the side edge of the back surface of the left door 20A. At the outer peripheral edge of the left door 20A, the metal sheets 65 and 66 overlap front to back. In contrast, the second insulator 92 is fixed to the left inner plate 82 by the second fixing member 84 in a state where it is sandwiched between the metal sheets 65 and 66 at the outer peripheral edge of the left door 20A. Although not shown, the right door 20B is similar.

That is, in the disinfection storage cabinet 10 of Example 1, a second heat insulator 92 is interposed between the metal plate 66 forming the back surface of the doors 20A, 20B and the metal plate (another component) 65 forming the front surface of the doors 20A, 20B, and is disposed along the outer periphery of the doors 20A, 20B. This makes it possible to prevent a decrease in temperature of the metal plate 65 due to contact with the metal plate 66 forming the back surface of the doors 20A, 20B, and to prevent condensation from occurring on the doors 20A, 20B.

8 and 9, the third insulator 93 is provided with a fixed plate portion 94 whose thickness direction is the left-right direction when the left door 20A is closed, and a covering plate portion 95 whose thickness direction is the front-rear direction when the left door 20A is closed. The fixed plate portion 94 is inserted into the open end of the left door 20A from the back side, and is fixed between the right end of the metal plate 65 of the left door 20A and the right inner plate 81 arranged on the inside of the left door 20A. The covering plate portion 95 extends to the right from the back end of the fixed plate portion 94 along the second extension portion 70b of the partition piece 70, and covers the surface of the second extension portion 70b (except for the right end portion that comes into contact with the packing P of the right door 20B).

In this way, the disinfection storage cabinet 10 of Example 1 can prevent condensation on the partition piece 70 with an inexpensive structure by positioning the third heat insulator 93 (covering plate portion 95) between the partition piece 70 of the left door 20A and the seam S. The third heat insulator 93 (covering plate portion 95) is positioned to avoid the right end portion of the second extension portion 70b of the partition piece 70 with which the packing P of the right door 20B comes into contact, so that a space for the packing P is secured between the surface of the partition piece 70 and the back surface of the right door 20B, and no extra force is applied by the operator when the right door 20B is closed with the left door 20A closed. In addition, by positioning the fixing plate portion 94 of the third heat insulator 93 extending in the vertical direction inside the open end portion of the left door 20A, it is possible to prevent the air at the seam S from being cooled due to the effect of a temperature drop inside the left door 20A.

Next, the disinfection storage cabinet 10 according to Example 2 will be described below with reference to FIG. 10. Note that the configurations different from Example 1 will be basically described, and the same configurations as in Example 1 will be assigned the same reference numerals and detailed description will be omitted. In the above-mentioned Example 1, the side heater 72 of the horizontal partition 53 is a single straight line. In contrast, the disinfection storage cabinet 10 of Example 2 has the side heater 72 installed on the horizontal partition 53 in a shape different from that of Example 1, and is otherwise the same as Example 1. Therefore, in Example 2, the installation state of the side heater 72 will be described.

When the disinfection storage cabinet 10 performs a cooling operation, condensation may occur on the side end surface 62 on the shaft side of the doors 20A and 20B and the side frame plate 51S of the housing 12 (passage forming portion 50). However, if a cord heater separate from the side heater 72 is prepared and directly installed on the side frame plate 51S, the number of cord heaters increases, which increases costs and makes installation work more time-consuming. Therefore, in Example 2, one cord heater (side heater 72) is folded back into a U-shape, and in addition to the vertical portion 72a extending in the vertical direction at a position aligned with the packing P of the doors 20A and 20B, a second vertical portion 72b extending in the vertical direction parallel to the vertical portion 72a is provided, and the second vertical portion 72b prevents condensation from occurring on the side frame plate 51S.

The second vertical portion 72b may be attached, for example, to the left side surface of the side frame plate 51S as the installation target surface. In this case, however, the side heater 72 is likely to float at the corner between the front plate 53a of the horizontal partition 53 and the side frame plate 51S, making it difficult to maintain a good installation state of the side heater 72. Therefore, in the disinfection storage cabinet 10 of Example 2, the second vertical portion 72b is attached to the same installation target surface as the first vertical portion 72a (the back surface of the front plate 53a of the horizontal partition 53) so as to extend in a position aligned with the side frame plate 51S from front to back.

Therefore, when the side heater 72 is operated based on the control of the control means 100 during cooling operation, the front plate 53a of the horizontal partition 53 is sufficiently heated by the first vertical portion 72a and the second vertical portion 72b of the side heater 72. In addition, the side frame plate 51S is efficiently heated by the second vertical portion 72b, and the side end surface 62 on the axis side of the doors 20A, 20B is heated by heat radiation from the side frame plate 51S, effectively preventing condensation around the side end surface 62.

In other words, the disinfection storage cabinet 10 of Example 2 can effectively prevent condensation on the horizontal partition 53 and the like by heating the first vertical portion 72a of the side heater 72 during cooling operation, and can effectively prevent condensation on the side frame plate 51S and the side end surface 62 on the axis side of the doors 20A and 20B by heating the second vertical portion 72b of the side heater 72. Here, the side heater 72 is disposed so that the first and second vertical portions 72a and 72b are along the same plane of the horizontal partition 53 (the back surface of the front plate 53a of the horizontal partition 53), so that the installation work of the side heater 72 is not complicated and the installation state can be prevented from becoming unstable.

Next, the disinfection storage cabinet 10 according to the third embodiment will be described below with reference to Figs. 12 and 13. The configurations different from those of the first and second embodiments will be basically described, and the same configurations as those of the first and second embodiments will be given the same reference numerals and will not be described in detail. In the first embodiment described above, the fitting holes 91a provided at a plurality of locations spaced apart in the longitudinal direction of the first insulator 91 are elongated along the longitudinal direction of the first insulator 91 to allow deformation (warping, etc.) of the first insulator 91 due to temperature changes, etc. In contrast, the third embodiment includes a deformation suppression means for suppressing deformation of the first insulator 91, and therefore the configuration for suppressing deformation of the first insulator 91 will be mainly described in the third embodiment. The first insulator 91 includes one that covers the open end side of the doors 20A and 20B, and one that covers the bottom end side of the doors 20A and 20B (similar to the first embodiment described above), but because these have the same structure in terms of the deformation prevention means, the first insulator 91 that covers the open end side of the left door 20A will be described.

12 and 13, in the third embodiment, a double-sided tape (adhesive means) 111 is interposed between the first heat insulator 91 and the left door 20A (metal plate 65) as a deformation prevention means. That is, in a state where the opposing surfaces of the first heat insulator 91 and the metal plate 65 are adhered to each other, the first fixing member 83 is inserted into each fitting hole 91a to fix the first heat insulator 91 at multiple locations, thereby attaching the first heat insulator 91 to the left door 20A. As a result, the first heat insulator 91 is reinforced by the metal plate 65, and deflection deformation caused by temperature changes and the like is suppressed, so that a gap is less likely to occur between the first heat insulator 91 and the metal plate 65 (left door 20A). In addition, by suppressing the deflection deformation of the first heat insulator 91, the first fixing member 83 is less likely to loosen. Therefore, the effect of preventing condensation by the first heat insulator 91 can be maintained. Each fitting hole 91a of the first insulator 91 is formed in a circular shape (not shown), but may be an elongated hole as in the first embodiment described above.

As shown in FIG. 13, the double-sided tape 111 is disposed to correspond to the range x2 between the fixing positions of the top and bottom first fixing members 83 within the range x1 from the top to the bottom of the first heat insulator 91. That is, even if the top side of the first heat insulator 91 (the side x3 above the top first fixing member 83) and the bottom side of the first heat insulator 91 (the side x4 below the bottom first fixing member 83) expand due to temperature changes, they are not sandwiched in the fixing positions of the first fixing members 83 and are therefore unlikely to bend or deform. Therefore, the range excluding the top and bottom sides of the first heat insulator 91 is adhered to the left door 20A (sheet metal 65) with the double-sided tape 111, eliminating wasted dimensions of the double-sided tape 111.

Next, the disinfection storage cabinet 10 according to Example 4 will be described below with reference to FIG. 14. Note that only the configurations that differ from Examples 1 to 3 will be basically described, and the same configurations as Examples 1 to 3 will be given the same reference numerals and detailed description will be omitted. In Example 4, the shape of the partition piece 70 (second extension portion 70b) differs from that of Example 1 described above, and it also differs from Example 1 in that it includes a sealing member 113 described below. Therefore, in Example 4, the partition piece 70 (second extension portion 70b) and the sealing member 113 will be mainly described.

As described in the first embodiment, a packing P is provided on the back surface of the open end of the right door 20B, and when the right door 20B is closed while the left door 20A is closed, the packing P of the right door 20B comes into contact with the metal partition piece 70 provided on the open end of the left door 20A. Here, the partition piece 70 of the fourth embodiment has a bent second extension portion 70b to improve adhesion with the packing P. Specifically, as shown in FIG. 14(a), the second extension portion 70b of the partition piece 70 is composed of an extension base portion 70b1 that extends from the first extension portion 70a in parallel with the back surface of the left door 20A (to the right in the closed state), and an inclined portion 70b2 that extends obliquely from the extension end of the extension base portion 70b1 to the front side.

As shown in FIG. 14(a), the second extension portion 70b of the partition piece 70 is bent so that the surfaces of the extension base portion 70b1 and the inclined portion 70b2 form an obtuse angle. In other words, the inclined portion 70b2 of the second extension portion 70b is formed so that it gradually moves away from the first extension portion 70a as it approaches the extension end. The extension dimension of the inclined portion 70b2 is set to a dimension that does not cause the inclined portion 70b2 to come into contact with the right door 20B even when both doors 20A and 20B are closed.

When the right door 20B is closed while the left door 20A is closed, the packing P is sandwiched between the partition piece 70 and the open end of the right door 20B, as shown in FIG. 14(b). In this case, the packing P is crushed in the thickness direction of the right door 20B due to contact with the extension base 70b1 of the partition piece 70, but is received by the inclined portion 70b2 of the partition piece 70, limiting deformation to the right. Therefore, when the right door 20B is closed, the packing P is in contact with both the extension base 70b1 and the inclined portion 70b2. In other words, by providing the inclined portion 70b2 on the partition piece 70 (second extension portion 70b), the range in which the packing P can deform is narrowed, the contact area between the packing P and the partition piece 70 is increased, and the airtightness of the interior of the container is improved.

As shown in FIG. 14(a), a seal member 113 is provided on the extension end side of the second extension portion 70b of the partition piece 70, which elastically contacts the portion of the back surface of the right door 20B that is closer to the axis than the packing P. The seal member 113 is made of a soft resin material or a rubber material, and is fixed by a screw member N by overlapping it with the back surface of the inclined portion 70b2 of the partition piece 70. The vertical dimension of the seal member 113 is set to match the vertical dimension of the partition piece 70. Here, the left end side of the seal member 113 overlaps with the inclined portion 70b2 of the partition piece 70, and the right end side extends toward the front side more than the inclined portion 70b2. Since the inclined portion 70b2 is inclined with respect to the extension base portion 70b1, the seal member 113 attached by overlapping it with the back surface of the inclined portion 70b2 is also inclined with respect to the extension base portion 70b1. Therefore, when the right door 20B is closed, as shown in FIG. 14(b), the right end side of the seal member 113 elastically deforms upon contact with the right door 20B and comes into close contact with the back surface of the right door 20B (the area closer to the axis than the packing P). In other words, the seal member 113, in addition to the packing P, seals the gap between the partition piece 70 and the right door 20B, improving the airtightness between the open ends of the doors 20A and 20B.

The closed state of the doors 20A and 20B is maintained by the engagement of the latch 112 (see FIG. 14) of the right door 20B with the latch receiver (not shown) on the housing 12 side. That is, when closing the right door 20B with the left door 20A closed, the right door 20B is pushed toward the passage 50a of the housing 12 until the latch 112 engages with the latch receiver. Here, the latch receiver is concave, and if it is provided on the lower edge side of the passage 50a (bottom plate 26 of the housing 12), it may accumulate dirt and become unsanitary. Therefore, the latch 112 is provided only on the upper end surface 61 of the right door 20B of the disinfection storage cabinet 10, and the latch receiver is provided only on the upper frame plate 51T of the housing 12 (upper edge side of the passage 50a). Therefore, when the right door 20B is closed, the lower end of the open end of the right door 20B without the latch 112 is pushed back slightly to the front side by the restoring force (reaction force) of the packing P, weakening the adhesion between the partition piece 70 and the packing P. In response to this situation, by providing the inclined portion 70b2 on the partition piece 70 and attaching the seal member 113 as described above, sufficient sealing can be achieved even when the latch 112 and latch receiver are provided as a locking structure only on the upper side of the right door 20B (passage opening 50a). If a locking structure is provided on both the upper and lower sides of the right door 20B (passage opening 50a), the partition piece 70 and the packing P can be brought into close contact, but in addition to the hygiene problems described above, there are problems such as an increase in the number of parts and an increase in the pushing force required to close the right door 20B.

Next, the disinfection storage cabinet 10 according to Example 5 will be described below with reference to FIG. 15. Note that the configurations different from Examples 1 to 4 will be basically described, and the same configurations as Examples 1 to 4 will be given the same reference numerals and detailed description will be omitted. In Example 5, the protruding dimension of the sealing member 114 toward the inside (back side) of the cabinet is increased to change the air flow from the inside of the cabinet toward the partition piece 70 side. Therefore, in Example 5, the differences between the sealing member 114 and the sealing member 113 of Example 4 will be mainly described.

15, in the fifth embodiment, the approximate center position of the seal member 114 is fixed to the inclined portion 70b2 of the partition piece 70 by the screw member N. The right end side (one end side in the width direction) of the seal member 114 elastically contacts a portion of the back surface of the right door 20B that is closer to the axis than the packing P, and the left end side (the other end side in the width direction) is located on the inside of the cabinet (back side) than the extended base portion 70b1 of the partition piece 70. The width dimension w1 of the portion of the seal member 114 that is left of the position where it is fixed by the screw member N is larger than the diameter dimension of the head Na of the screw member N. By configuring the seal member 114 in this way, during the cooling operation of the disinfection storage cabinet 10, the cold air that is moving from the inside of the cabinet toward the right along the back surface of the left door 20A and the back surface of the partition piece 70 (the second extension part 70b) is stagnated in the area between the extension base part 70b1 and the seal member 114 (flowing in the direction of the arrow Y1 in FIG. 15). In addition, the path of the cold air that is moving from the inside of the cabinet toward the left along the back surface of the right door 20B is blocked, and the cold air is guided by the seal member 114 toward the side away from the second extension part 70b (the direction of the arrow Y2 in FIG. 15). That is, the seal member 114 in the fifth embodiment is configured to change the flow of air along the back surfaces of the doors 20A and 20B during the cooling operation by extending the part to the left of the fixed position by the screw member N toward the inside of the cabinet, so that the partition piece 70 is difficult to cool. Therefore, when the cooling operation is performed, the occurrence of condensation due to a decrease in temperature of the partition piece 70 can be suppressed. It also improves the airtightness of the interior of the cabinet, improving the cooling capacity during cooling operation and the heating capacity during disinfection and drying operation.

Next, the disinfection storage cabinet 10 according to Example 6 will be described below with reference to FIG. 16. Note that configurations that differ from Examples 1 to 5 will be basically described, and configurations that are the same as those in Examples 1 to 5 will be given the same reference numerals and detailed descriptions will be omitted. In Example 6, a cover portion 117 that covers the head Na of the screw member N from the inside of the cabinet is provided for the sealing member 115. Therefore, in Example 6, the configuration of the sealing member 115 will be mainly described.

16, the seal member 115 of the sixth embodiment is composed of a first flexible plate 116 extending along the back surface of the inclined portion 70b2 of the partition piece 70, and a cover portion 117 covering the head Na of the screw member N from the inside of the container. The cover portion 117 is composed of a standing portion 117a rising substantially vertically from the back surface of the first flexible plate 116, and a second flexible plate 117b extending substantially parallel to the first flexible plate 116 from the extending end of the standing portion 117a, and the standing portion 117a is located on the inside (back side) of the container further from the screw member N. The first flexible plate 116 and the second flexible plate 117b of the cover portion 117 are spaced apart in the plate thickness direction by the extending dimension of the standing portion 117a, and the head Na of the screw member N is located in the space of this distance. Additionally, the first flexible plate 116 and the second flexible plate 117b have roughly the same extension dimension on the front side from the standing portion 117a.

Here, the first flexible plate 116 and the second flexible plate 117b extend to a position where they come into contact with the back surface of the right door 20B when the right door 20B is in a closed state. Therefore, when the right door 20B is closed, the first flexible plate 116 first comes into contact with the right door 20B and elastically deforms, and when the right door 20B is further moved in the closing direction, the second flexible plate 117b comes into contact with the right door 20B and elastically deforms. As a result, the first flexible plate 116 and the second flexible plate 117b both come into close contact with the back surface of the right door 20B. That is, the seal member 115 of the sixth embodiment includes a plurality of parallel flexible plates 116, 117b spaced apart in the plate thickness direction, and the right end side (one end side in the width direction) of each of the flexible plates 116, 117b is configured to elastically come into contact with a portion of the back surface of the right door 20B that is closer to the axis than the packing P. In this way, by bringing the multiple flexible plates 116, 117b provided on the sealing member into contact with the right door 20B, the sealing performance between the open ends of both doors can be improved compared to a single plate-shaped member such as the sealing members 113, 114 of the above-mentioned embodiments 4 and 5.

Furthermore, by providing the cover portion 117 to the sealing member 115, the cold air (air flowing in the direction of the arrow Y4 in FIG. 16) flowing from the inside of the cabinet toward the second extension portion 70b of the partition piece 70 during the cooling operation of the disinfection storage cabinet 10 is less likely to come into contact with the first flexible plate 116. In particular, the path of the cold air flowing from the right side of the cabinet toward the second extension portion 70b of the partition piece 70 is blocked, and the cold air is guided by the sealing member 115 to the side away from the second extension portion 70b. In addition, since the first flexible plate 116 protrudes farther toward the inside of the cabinet (back side) than the second extension portion 70b of the partition piece 70, the presence of the first flexible plate 116 causes the flow of air (arrow Y3 in FIG. 16) from the left side of the cabinet toward the periphery of the back side of the second extension portion 70b to be impeded. In other words, when the cooling operation is performed, the temperature drop of the partition piece 70 can be suppressed, and condensation can be prevented. It is also possible to improve the cooling capacity during cooling operation and the heating capacity during disinfection and drying operation. Furthermore, by covering the head Na of the screw member N with the cover part 117, it is possible to prevent the worker from injuring his/her fingers due to contact with the screw member B during work. From the viewpoint of preventing injury to the worker, it is preferable to combine the screw member N with a cap nut.

Next, the disinfection storage cabinet 10 according to Example 7 will be described below with reference to FIG. 17. Note that the configurations different from Examples 1 to 6 will be basically described, and the same configurations as Examples 1 to 6 will be assigned the same reference numerals and detailed description will be omitted. In the above-mentioned Example 1, the description of the specific shape, etc. of the shielding plate 38 provided at the lower end of the doors 20A, 20B will be omitted. Therefore, in Example 7, the shape of the shielding plate 38 will be described in detail. In addition, since an auxiliary shielding plate 120 is additionally provided in Example 7, the auxiliary shielding plate 120 will also be described. Note that the partition piece 70 is provided with the same sealing member 115 as in the above-mentioned Example 6.

17, the shielding plate 38 is disposed at the lower end of the rear surface of each of the doors 20A and 20B, respectively, and is configured to block the gap between the doors 20A and 20B and the bottom plate 26 of the housing 12. The shielding plate 38 is made of a soft resin material or a rubber material, and is fixed to the lower edge of the rear surface of the doors 20A and 20B by the screw member N. The shielding plate 38 is composed of a first flexible plate 118 that hangs down along the rear surface of the doors 20A and 20B, and a cover part 119 that covers the head Na of the screw member N that fixes the first flexible plate 118 to the rear surface of the doors 20A and 20B. The cover part 119 is composed of a standing part 119a that extends from the upper edge of the first flexible plate 118 toward the interior of the cabinet, and a second flexible plate 119b that is perpendicular to the standing part 119a, and the standing part 119a is located above the screw member N. That is, the first flexible plate 118 and the second flexible plate 119b of the cover portion 119 are spaced apart by the extension dimension of the upright portion 119a, and the head Na of the screw member N is located in the space of this distance. Each flexible plate 118, 119b extends below the height position of the bottom plate 26 of the housing 12. That is, the shielding plate 38 is configured such that when the doors 20A, 20B are closed, each flexible plate 118, 119b bends and comes into close contact with the bottom plate 26, doubly sealing the gap between the lower end surface 64 of the doors 20A, 20B and the bottom plate 26. Reference numeral 129 denotes a support bracket for maintaining the shape of the shielding plate 38.

Here, the upper end side of the second flexible plate 119b extends upward from the standing portion 119a, and to some extent prevents the air inside the cabinet during cooling operation from entering between the rear surface of the doors 20A, 20B and the upper edge of the shielding plate 38. However, some of the air flowing downward along the rear surface of the doors 20A, 20B may be guided to the portion of the shielding plate 38 that is above the standing portion 119a and may flow between the rear surface of the doors 20A, 20B and the upper edge of the shielding plate 38 (first flexible plate 118). Therefore, in the seventh embodiment, an auxiliary shielding plate 120 is provided above the shielding plate 38 to cover the gap between the upper edge (outer edge) of the shielding plate 38 and the doors 20A, 20B. As shown in FIG. 17, the auxiliary shielding plate 120 is formed with a width dimension that matches the shielding plate 38, and is attached to the back surface of the doors 20A, 20B so as to cover the upper end side of the second flexible plate 119b that protrudes upward from the rising portion 119a. In this way, the shielding plate 38 prevents the air inside the cabinet from leaking out through the gap between the lower end of the doors 20A, 20B and the bottom plate 26, and the auxiliary shielding plate 120 prevents the air inside the cabinet from leaking out through the gap between the upper edge of the shielding plate 38 and the back surface of the doors 20A, 20B. This makes it possible to suppress the occurrence of condensation due to a drop in temperature of the lower end surface 64 of the doors 20A, 20B and the bottom plate 26 when the cooling operation is performed. In addition, it is possible to improve the cooling capacity during the cooling operation and the heating capacity during the disinfection and drying operation.

A common material of the same shape may be used for two or more of the shielding plate 38, the auxiliary shielding plate 120, and the seal member 115. In this case, since the positions of the screw holes used are different between the shielding plate 38 and the seal member 115 and the auxiliary shielding plate 120, a material with screw holes formed in both the first flexible plate 116 (second flexible plate 119b) and the second flexible plate 117b (first flexible plate 118) may be used as the common material, and the unused screw holes may be filled with a different material. In addition, the shape of the shielding plate 38 may be a shape (crank-shaped in cross section) in which the portion of the second flexible plate 119b below the rising portion 119a is removed.

Next, the disinfection storage cabinet 10 according to Example 8 will be described below with reference to FIG. 18. Note that the configurations different from Examples 1 to 7 will be basically described, and the same configurations as Examples 1 to 7 will be assigned the same reference numerals and detailed description will be omitted. In the above-mentioned Example 1, in consideration of the fact that condensation is likely to occur on the outer peripheral end faces 61, 62, 63, 64 of the doors 20A and 20B and their surroundings, cord heaters (heaters for preventing condensation) 71, 72, 73 are installed on the passage forming portion 50 (upper partition 52, horizontal partition 53, front part 26a of the bottom plate 26) that forms the passage 50a of the housing 12. In contrast, Example 8 includes a cord heater 124 for preventing condensation from occurring on the outer surface of the housing 12. Therefore, in Example 8, the configuration related to the cord heater 124 for preventing condensation from occurring on the outer surface of the housing 12 will be mainly described. Note that the installation of at least one of the cord heaters 71, 72, 73 described in Example 1 may be omitted.

As shown in FIG. 18, in the lower corner of the disinfection storage cabinet 10, the lower end of the partition plate 121 that defines the circulation path 14 inside the cabinet and the lower end of the reinforcing plate 123 that reinforces the partition plate 121 are overlapped on the left and right, and the lower end of the reinforcing plate 123 is bent horizontally to overlap the lower end of the side panel 122 that forms the outer surface of the housing 12, and are fastened together with the screw member N. Therefore, when the cold air caused by the cooling operation circulates through the circulation path 14 and cools the partition plate 121, the side panel 122 is gradually cooled from the lower end side due to this influence, and condensation may occur on its outer surface. Therefore, in Example 8, a cord heater (heater for preventing condensation) is installed at the lower end of the inner surface of the side panel 122. Hereinafter, this cord heater will be described as "side heater 124".

The side heater 124 is attached to the lower end of the inner surface of the side panel 122, and is composed of two straight parts 124a, 124a in the front-rear direction and a folded part 124b that connects the rear ends of the straight parts 124a, 124a. That is, the side heater 124 as a whole is arranged to extend horizontally along the lower edge of the side panel 122. In addition, appropriate specifications (length and heat generation amount) of the side heater 124 are selected in consideration of the temperature change tendency during cooling operation of the side panel 122 on which the side heater 124 is installed, and as a result, a cord heater with a different length and heat generation amount is adopted from at least one of the other cord heaters 71, 72, 73. In addition, the side heater 124 is controlled by the control means 100 in the same way as the other cord heaters 71, 72, 73 during cooling operation (i.e., it operates at a timing after the start of the cooling operation).

In this way, by providing the side heater 124 along the lower edge of the inner surface of the side panel 122, it is possible to prevent condensation from forming on the lower part of the side of the housing 12.

Next, the disinfection storage cabinet 10 according to Example 9 will be described below with reference to FIG. 19. In Example 9, a connecting machine 125 consisting of two disinfection storage cabinets 10 will be described. The two disinfection storage cabinets 10 constituting the connecting machine 125 basically have the same structure (cart-in type) as the disinfection storage cabinet 10 of Example 1, but an opening (hereinafter referred to as "communication opening 125a") is formed on the back surface where they are connected to each other so that a cart can be moved from one storage chamber 16 to the other storage chamber 16. In Example 9, the connecting structure of the two disinfection storage cabinets 10 will be basically described, and the specific configuration of each disinfection storage cabinet 10 will be assigned the same reference numerals as in Examples 1 to 8 and detailed description will be omitted.

As shown in FIG. 19(a), the connecting machine 125 is constructed by connecting the backs of two disinfection storage cabinets 10, and the storage chambers 16 are connected to each other by a communication port 125a formed on the back to form one storage space 125b. Here, if the backs of the two disinfection storage cabinets 10 are completely flat, the sealed storage space 125b can be formed simply by facing the backs of both disinfection storage cabinets 10 and fastening them to each other with bolts and nuts. However, in reality, it is very difficult to make the backs of each disinfection storage cabinet 10 completely flat. That is, a gap is generated between the opposing faces (backs) of the two disinfection storage cabinets 10 to be connected, so that the storage space 125b of the connecting machine 125 is not sealed, and the cooling operation and the disinfection/drying operation cannot be performed efficiently.

In the ninth embodiment, as shown in FIG. 19(b), a strip-shaped seal material is arranged between the backs of the two disinfection storage cabinets 10 so as to go around the outer periphery of the communication opening 125a. Specifically, a fluororesin seal 126 containing polytetrafluoroethylene (PTFE), a type of fluororesin, and having excellent heat resistance is used as the strip-shaped seal material. That is, the fluororesin seal 126 is attached to the back (outer periphery of the communication opening 125a) of one of the disinfection storage cabinets 10, and the backs of both disinfection storage cabinets 10 are pulled together and fixed to each other using bolts and nuts to the extent that the fluororesin seal 126 is crushed, thereby forming the connecting machine 125. By thus arranging the fluororesin seal 126 between the two disinfection storage cabinets 10 to close the gap, the storage space 125b can be sealed, and the efficiency of the cooling operation and the disinfection/drying operation can be improved, thereby suppressing energy consumption. In addition, the occurrence of condensation on the outer surface of the connecting machine 125 due to the leakage of cold air during the cooling operation can be prevented.

[Example of change]
The present application is not limited to the configurations of the above-described embodiments, and for example, the following configurations can be appropriately adopted.
(1) In Examples 1 to 9, a cart-in type disinfection storage cabinet has been described. However, the configuration of the examples can also be applied to a disinfection storage cabinet in which shelves for placing items (goods) such as tableware are provided inside the storage chamber and a tableware cart cannot be brought in.
(2) In Examples 1 to 9, the openings at the front end (opening) of the housing are used as the inlet and outlet of the tableware cart, but the inlet (opening) of the tableware cart may be provided at the front end (opening) of the housing and the outlet (opening) of the tableware cart may be provided at the rear end (opening) of the housing, and each opening may be opened and closed by a separate door. In this case, the configuration of the example may be applied to either one of the openings/doors, or to both of the openings/doors.
(3) In the first to ninth embodiments, a bendable linear electric heater (cord heater) is provided in the passage opening portion as an anti-condensation heater. However, a bendable band-shaped electric heater or another electric heater that cannot be bent may be provided in the passage opening portion as an anti-condensation heater.
(4) In Examples 1 to 9, the heat values of the multiple anti-condensation heaters (top edge heater, side edge heater, and bottom edge heater) provided in the passage formation portion were made different from each other, but the heat values of any two or all three of the anti-condensation heaters may be made the same.
(5) In Examples 1 to 9, the overall lengths of the multiple anti-condensation heaters (top heater, side heater, and bottom heater) provided in the passage formation portion are made different from each other, but the overall lengths of any two or all three of the anti-condensation heaters may be the same.
(6) In the first to ninth embodiments, all of the condensation prevention heaters (top, side and bottom heaters) are operated when the inside temperature during cooling operation drops to a specific temperature higher than the temperature that lowers the surface temperature of the top partition to the dew point temperature, but any of the condensation prevention heaters other than the top heater may be operated before the inside temperature reaches the specific temperature (for example, from the start of the cooling operation). Also, the specific temperature may be set to a temperature higher than the temperature that lowers the surface temperature of the front of the side partition or bottom plate to the dew point temperature.
(7) In Examples 1 to 9, when the right door is closed with the left door closed, the gasket of the right door comes into contact with the partition piece of the left door. However, the gasket of the right door may be configured to come into contact with the covering plate portion of the third insulator (insulator) that covers the partition piece.
(8) In the first, second, and fourth to ninth embodiments, the fitting hole of the first insulator made of synthetic resin is formed as an elongated hole, while the fitting hole of the third insulator is circular, but the fitting hole of the third insulator may be formed as an elongated hole. Also, it is possible to form the fitting hole of the first insulator in a circular shape, and to form the fitting hole of the second insulator made of silicon in an elongated hole.
(9) In Examples 1 to 9, the first and third insulators (insulators) are formed from a synthetic resin material, and the second insulator (insulator) is formed from a silicone material. However, the first insulator or the third insulator may be formed from a silicone material, and the second insulator may be formed from a synthetic resin material.
(10) In Examples 4 to 6, an inclined portion is provided on the partition piece of the left door, and the seal member is disposed along this inclined portion so that the seal member extends obliquely to the front side and elastically contacts the back side of the right door. In contrast, the seal member may be configured with a mounting base that is attached along the partition piece (extending base portion) and a flexible plate portion that is bent relative to the mounting base so that their surfaces form an obtuse angle, so that the flexible plate portion extends obliquely to the front side relative to the mounting base and elastically contacts the back side of the right door.
(11) In the sixth embodiment, two flexible plates are provided on the seal member disposed on the partition piece (inclined portion) of the left door, but the number of flexible plates may be three or more. Also, in the sixth embodiment, one of the two flexible plates (the second flexible plate) is provided as a part of the cover portion that covers the head of the screw member, but this cover portion may not include a flexible plate (the second flexible plate), and only one flexible plate (the first flexible plate) may be configured to elastically contact the rear surface of the right door.
(12) In the sixth embodiment, the first and second flexible plates of the seal member extend from the standing portion by the same length. Since the seal member is provided at an inclination on the inclined portion of the partition piece, the degree of contact of each flexible plate with the rear surface of the right door differs (see FIG. 16). In contrast, the second flexible plate may be extended from the standing portion longer than the first flexible plate to increase the degree of contact of the second flexible plate with the rear surface of the right door.

12 housing, 14 circulation path, 16 storage room, 20A left door (door), 20B right door (door),
26 bottom plate (installation target), 30 electric heater (heating device), 36 evaporator (cooling device),
50 port forming part, 50a port, 51S side frame plate,
52 Upper partition (installation target, specified installation target), 53 Horizontal partition (installation target),
66 Metal plate, 70 Partition piece, 71 Top heater (heater for preventing condensation),
71a first horizontal portion (horizontal portion), 71b second horizontal portion (horizontal portion),
71c third horizontal part (horizontal part), 71e1 left vertical part (vertical part),
71e3 Right vertical part (vertical part), 72 Side heater (heater for preventing condensation),
72a vertical portion (first vertical portion), 72b second vertical portion,
73 Lower heater (heater for preventing condensation), 81 Right inner plate (inner plate), 82 Left inner plate (inner plate),
83 First fixing member (fixing member), 84 Second fixing member (fixing member), 85 Head portion,
86 threaded portion, 87 fitting portion, 91 first heat insulator (heat insulator), 91a fitting hole,
92 second heat insulator (heat insulator), 92a fitting hole, 93 third heat insulator (heat insulator),
93a fitting hole, 101 inside temperature sensor, P packing, S joint

Claims (11)

A disinfection storage cabinet in which a storage chamber (16) for storing articles and an air circulation path (14) are defined inside a housing (12), a passage (50a) is formed through which the storage chamber (16) communicates with the outside, the passage (50a) can be opened and closed by doors (20A, 20B), and air heated by a heating device (30) can be introduced from the circulation path (14) into the storage chamber (16),
a cooling device (36) capable of cooling the interior of the storage compartment, and configured so that air cooled by the cooling device (36) can be introduced into the storage chamber (16) from the circulation path (14);
In the housing (12), dew condensation prevention heaters (71, 72, 73) having different amounts of heat generation in accordance with differences in temperature change tendencies of the installation targets (26, 52, 53) during a cooling operation are disposed in a plurality of installation targets (26, 52, 53) located around the doors (20A, 20B),
A plate- or sheet-shaped heat insulator (92) is interposed between a metal plate (66) forming the back surface of the door (20A, 20B) and another component (65) of the door (20A, 20B) and is disposed along the outer periphery of the door (20A, 20B).
A disinfection storage cabinet characterized by the above. A disinfection storage cabinet in which a storage chamber (16) for storing articles and an air circulation path (14) are defined inside a housing (12), a passage (50a) is formed through which the storage chamber (16) communicates with the outside, the passage (50a) can be opened and closed by doors (20A, 20B), and air heated by a heating device (30) can be introduced from the circulation path (14) into the storage chamber (16),
a cooling device (36) capable of cooling the interior of the storage compartment, and configured so that air cooled by the cooling device (36) can be introduced into the storage chamber (16) from the circulation path (14);
In the housing (12), dew condensation prevention heaters (71, 72, 73) having different amounts of heat generation in accordance with differences in temperature change tendencies of the installation targets (26, 52, 53) during a cooling operation are disposed in a plurality of installation targets (26, 52, 53) located around the doors (20A, 20B),
the door (20A, 20B) includes an inner plate (81, 82) disposed inside the door (20A, 20B), a plate-shaped or sheet-shaped heat insulator (91, 92, 93), and a fixing member (83, 84) for fixing the heat insulator (91, 92, 93) to the inner plate (81, 82),
The fixing members (83, 84) each include a fitting portion (87) between a head (85) on one end side and a threaded portion (86) on the other end side, the fitting portion (87) having a diameter larger than the threaded portion (86) and smaller than the head (85),
The heat insulators (91, 92, 93) are positioned between the inner plate (81, 82) and the head (85) with the screw portion (86) of the fixing member (83, 84) screwed into the inner plate (81, 82), and are held in a state in which the fitting portion (87) is fitted into the inside of a fitting hole (91a, 92a, 93a) formed in the heat insulators (91, 92, 93).
A disinfection storage cabinet characterized by the above. 3. The disinfection storage cabinet according to claim 2 , wherein the fitting hole (91a) is formed as an elongated hole extending along the longitudinal direction of the thermal insulator (91). A disinfection storage cabinet in which a storage chamber (16) for storing articles and an air circulation path (14) are defined inside a housing (12), a passage (50a) is formed through which the storage chamber (16) communicates with the outside, the passage (50a) can be opened and closed by doors (20A, 20B), and air heated by a heating device (30) can be introduced from the circulation path (14) into the storage chamber (16),
a cooling device (36) capable of cooling the interior of the storage compartment, and configured so that air cooled by the cooling device (36) can be introduced into the storage compartment (16) from the circulation path (14);
In the housing (12), dew condensation prevention heaters (71, 72, 73) having different amounts of heat generation in accordance with differences in temperature change tendencies of the installation targets (26, 52, 53) during a cooling operation are disposed in a plurality of installation targets (26, 52, 53) located around the doors (20A, 20B),
The doors (20A, 20B) include a left door (20A) that rotates about an axis along the left side of the passage (50a) and a right door (20B) that rotates about an axis along the right side of the passage (50a),
a partition piece (70) is provided at an open end of one of the doors (20A) to close a joint (S) between the two doors (20A, 20B) extending in the vertical direction from inside the container, and when the other door (20B) is closed with the one door (20A) closed, a packing (P) provided on a back surface of the other door (20B) comes into contact with the partition piece (70);
The partition piece (70) is provided at its extending end with a seal member (113, 114, 115) that elastically contacts a portion of the rear surface of the other door (20B) that is closer to the shaft than the packing (P).
A disinfection storage cabinet characterized by the above. The partition piece (70) includes an extending base portion (70b1) and an inclined portion (70b2) extending obliquely from the extending base portion (70b1) to the front side, and is bent so that the surfaces of the extending base portion (70b1) and the inclined portion (70b2) form an obtuse angle with each other.
The disinfection storage cabinet according to claim 4, wherein the sealing members (114, 115) are arranged along the inclined portion (70b2) of the partition piece (70), and one end side in the width direction of the sealing members elastically contacts a portion of the back surface of the other door (20B) that is closer to the axis than the gasket (P), and the other end side in the width direction is located closer to the inside of the cabinet than the extension base portion (70b1 ) of the partition piece (70) so as to be able to change the air flow along the back surface of the doors (20A, 20B). The partition piece (70) includes an extending base portion (70b1) and an inclined portion (70b2) extending obliquely from the extending base portion (70b1) to the front side, and is bent so that the surfaces of the extending base portion (70b1) and the inclined portion (70b2) form an obtuse angle with each other.
The disinfection storage cabinet according to claim 4 or 5, wherein the sealing member (115) comprises a plurality of parallel flexible plates (116, 117b) spaced apart in a plate thickness direction, and one end side in the width direction of each flexible plate (116, 117b) is configured to elastically contact a portion of the back surface of the other door ( 20B ) that is closer to the axis than the gasket ( P ). A disinfection storage cabinet in which a storage chamber (16) for storing articles and an air circulation path (14) are defined inside a housing (12), a passage (50a) is formed through which the storage chamber (16) communicates with the outside, the passage (50a) can be opened and closed by doors (20A, 20B), and air heated by a heating device (30) can be introduced from the circulation path (14) into the storage chamber (16),
a cooling device (36) capable of cooling the interior of the storage compartment, and configured so that air cooled by the cooling device (36) can be introduced into the storage chamber (16) from the circulation path (14);
In the housing (12), dew condensation prevention heaters (71, 72, 73) having different amounts of heat generation in accordance with differences in temperature change tendencies of the installation targets (26, 52, 53) during a cooling operation are disposed in a plurality of installation targets (26, 52, 53) located around the doors (20A, 20B),
a shielding plate (38) disposed at the lower end of the rear surface of the door (20A, 20B) to close the gap between the door (20A, 20B) and the bottom plate (26) of the housing (12);
and an auxiliary shielding plate (120) for covering the gap between the outer edge of the shielding plate (38) and the rear surface of the door (20A, 20B).
A disinfection storage cabinet characterized by the above. The doors (20A, 20B) include a left door (20A) that rotates about an axis along the left side of the passage (50a) and a right door (20B) that rotates about an axis along the right side of the passage (50a),
The housing (12) is provided with an upper partition (52) facing the upper edge portions of the rear surfaces of both doors (20A, 20B),
The disinfection storage cabinet according to any one of claims 1 to 7, wherein the dew condensation prevention heater (71) to be installed on the upper partition (52) has horizontal portions (71a, 71b, 71c) extending in the left-right direction along upper end surfaces (61, 61) of both doors (20A, 20B) and vertical portions (71e1, 71e3) extending in the up-down direction along a joint (S) between both doors (20A, 20B). the housing (12) is provided with a horizontal partition (53) facing a side edge portion of the rear surface of the door (20A, 20B) and a side frame plate (51S, 51S) facing a side end surface (62, 62) of the door (20A, 20B),
a packing (P) disposed on the rear surface of the door (20A, 20B) is configured to come into contact with the horizontal partition (53) when the door (20A, 20B) is closed;
The disinfection storage cabinet according to any one of claims 1 to 8 , wherein the dew condensation prevention heater (72, 72) to be installed on the horizontal partition (53) has a first vertical portion (72a) extending in the vertical direction in a position aligned with the back side of the packing (P) and a second vertical portion (72b) extending in the vertical direction in a position aligned with the back side of the side frame plate (51S, 51S), and the first and second vertical portions (72a, 72b) are arranged along the same plane of the horizontal partition (53, 53). A temperature sensor (101) for detecting a temperature inside the cabinet is provided.
10. The disinfection storage cabinet according to claim 1, wherein the dew condensation prevention heater (71) installed in a predetermined installation target (52) is operated in response to an internal temperature detected by the internal temperature sensor (101) during a cooling operation decreasing to a specific temperature higher than a temperature that decreases a surface temperature of the predetermined installation target (52 ) to a dew point temperature. The doors (20A, 20B) include a left door (20A) that rotates about an axis along the left side of the passage (50a) and a right door (20B) that rotates about an axis along the right side of the passage (50a), and a partition piece (70) that closes a joint (S) between both doors (20A, 20B) extending in the vertical direction from the inside of the storage compartment is provided at an open end of one of the doors (20A),
The disinfection storage cabinet according to any one of claims 1 to 10 , further comprising a heat insulator (93) between the joint (S) of both doors (20A, 20B) and the surface of the partition piece (70).

Images