JPH07122544B2 - High humidity low temperature storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a high-humidity, low-temperature storage for indirectly cooling a storage chamber defined inside a heat-insulating box and maintaining the storage chamber at high humidity. In particular, the present invention relates to an improvement of the dew receiving plate arranged in the upper part of the storage chamber.

(B) Conventional technology As a conventional technology, in Japanese Utility Model Publication No. 60-2555, a dew receiving plate for receiving condensed water dripping from the upper wall of the cooler box is provided in the ceiling part of the cooler box, and this dew receiving plate is provided. Disclosed is a dew receiving device for a humidifying refrigerator, which is provided with a plurality of cold air passage holes whose peripheral edges are bent upward.

(C) Problem to be Solved by the Invention According to the dew receiving device of the related art, the dew condensation water dropped on the dew receiving plate is drained without falling into the cooling chamber. The dew condensation water that has condensed has fallen into the cooling chamber in the form of water droplets, leaving the problem of wetting food.

In addition, as a technology that solved this problem,
There is a 4283 publication. This is one in which the dew receiving plate is made of a plate material of a hydrophilic plastic porous sintered body. However, since the dew receiving plate becomes dirty with water drops and becomes difficult to clean and becomes unsanitary, mold cannot be avoided, and the dew receiving plate needs to be replaced regularly. .

In view of the problems of the prior art, the present invention provides a high-humidity, low-temperature storage cabinet that includes a dew receiving plate that protects stored foods from dew condensation water and that has a dew receiving plate that can be managed hygienically. .

(D) Means for Solving the Problem In order to solve the above-described problems, the present invention provides a heat-conducting box inside a heat-insulating box body having an opening / closing door at a front opening with a space from the heat-insulating box body. And a cooling chamber is provided in the space between the heat insulating box and the heat conducting box, and the storage chamber is indirectly cooled. In a high-humidity / low-temperature storage, the dew receiving plate having a grid-like streak is formed on the lower surface, and the dew receiving plate is arranged in an inclined manner at the upper part of the storage chamber so as to face the top plate of the heat conducting box. It is a high-humidity and low-temperature storage that consists of.

Further, in order to solve the above-mentioned problems, the present invention provides a heat-conducting box inside the heat-insulating box body having an opening / closing door in the front opening, with a space from the heat-insulating box body. With the inside of the guide box as a storage chamber, a cooling means is provided in the space between the heat-insulating box body and the heat-conducting box, and in a high-humidity low-temperature storage device configured to indirectly cool the storage chamber, A dew receiving plate having a rough surface formed on the lower surface by pickling is provided, and the dew receiving plate is disposed on the upper part of the storage chamber so as to face the top plate of the heat conducting box and is inclined. Humidity and low temperature storage.

(E) Action According to the present invention, when the heat conducting box is cooled, the air in the storage chamber is indirectly cooled through the heat conducting box. On this occasion,
Condensation water that condenses on the top plate of the heat conduction box and drops from the top plate as water drops is received by the dew receiving plate, and is guided to the lower edge by the inclination of the dew receiving plate without wetting the stored food. Wastewater is treated.

Therefore, a small amount of dew condensation water attached to the lower surface of the dew receiving plate is
Since the surface tension is weakened by the action of the grid-like streaks or rough surfaces, it spreads over the entire lower surface of the dew receiving plate without forming water droplets, and due to the tilting action of the dew receiving plate, it is guided toward the lower end and stored food Drop from the lower edge of the dew receiving plate, avoiding

Further, due to the grid-like streaks or rough surfaces, the dew condensation water is unlikely to become water drops, and due to the tilting action of the dew receiving plate, it is guided toward the lower end and falls from the lower edge of the dew receiving plate that avoids stored food.

(F) Example A high humidity low temperature storage of the present invention will be described below with reference to FIGS. 1 to 3. Reference numeral 1 denotes a heat-insulating box body having an opening / closing door 2 at the front opening, and the heat-insulating box body 1 is configured by filling a heat insulating material between both inner and outer boxes. Inside the heat insulating box 1, for example, an upper heat conducting box 6 and a lower heat conducting box 7 made of stainless steel, which are open on the front surface, are fixed to all the inner wall surfaces of the heat insulating box 1 at intervals. The cold air passage 8 is provided and the space formed by this is used as a cold air passage 8, and the inner sides defined by the upper heat conducting box 6 and the lower heat conducting box 7 are respectively defined as an upper storage chamber 9 and a lower storage chamber 10. . Further, a plurality of shelves 11 on which stored food items are placed are arranged in the vertical direction of the respective storage chambers 9 and 10.

Thus, on the upper part of the upper storage chamber 9, there is provided a metallic upper dew receiving plate 12 made of stainless steel or the like which faces the top plate 6A of the upper heat conducting box 6 which is inclined rearward at a small distance. , Is inclined backward about 7 degrees and is arranged so that it can be pulled out toward the front opening direction. Similarly, there is a small gap between the top plate 7A of the lower heat conduction box 7 and the upper storage space of the lower storage chamber 10. A lower dew receiving plate 13 made of a metal such as stainless steel facing each other is arranged so as to be slanted rearward about 7 degrees so as to be freely drawn out in the front opening direction.

These upper and lower dew receiving plates 12 and 13 have a saucer shape having rising walls on the front and both sides, and the lower end edge located after the rear end of the shelf 11 is bent downward to drain the water 12A. , 13A is formed. Further, a hydrophilic paint is applied to the lower surface of the dew receiving plates 12 and 13 to form a thin layer 15 of the hydrophilic paint as shown in the sectional view of FIG.

The upper and lower dew receiving plates 12 and 13 are supported so as to be freely drawn out on the support rails 14 fixed to both side plates of the heat conducting boxes 6 and 7, respectively.

In addition, the upper storage chamber 9 and the lower storage chamber 10 have an upper drain pipe 16 which faces the upper side of the lower dew receiving plate 13 from the bottom plate of the upper heat conducting box 6 through the top plate 7A of the lower heat conducting box 7. The lower storage chamber 10 and the outside are inserted through the lower drain pipe 17 that extends from the bottom plate of the lower heat conducting box 7 through the bottom wall of the heat insulating box 1 and hangs outside the box 1. ing.

Further, the top wall of the heat insulating box 1 and the upper heat conducting box 6 facing it.
In the cool air passage 8 between the top plates 6A, a unit cover 21 having a blowout port 19 in the front part and a suction port 20 in the rear part is provided as a cooling means, and inside the unit cover 21, A refrigerating evaporator 22 and a blower 23 for circulating cold air are housed in front of the evaporator 22 so as to face the outlet 19. The evaporator 22 is a well-known electric compressor 24 and condenser 25 on the top wall of the box 1.
The refrigeration cycle is configured by connecting with. 26 is a condenser air cooling fan.

In the cold air passage 8 between the rear wall of the heat-insulating box 1 and the rear plates of the upper and lower heat-conducting boxes 6 and 7 facing the rear wall, a vertical partition plate 27 is provided in the vertical direction to form a discharge passage 8A. A return passage 8B is formed, and both passages communicate with each other through the lower communication port 28. Furthermore, upper heat conduction box 6
In the cold air passage 8 between the bottom plate and the top plate of the lower heat conducting box 7, a horizontal horizontal partition plate 30 having a communication port 29 formed in the front portion is arranged.

In the above configuration, the cold air that has undergone heat exchange in the evaporator 22 is
It is discharged from the outlet 19 to the cool air passage 8 by the blower 23, and is circulated in the path shown by the arrow in FIG. 2. First, after cooling the upper heat conducting box 6, the upper heat conducting box 7 is passed through and the lower heat conducting box 7 is passed. Is cooled, and is returned from the lower communication port 28 to the evaporator 22 through the return passage 8B and the suction port 20. As a result, the upper storage room 9
The air in the lower storage chamber 10 is indirectly cooled via the upper and lower heat conducting boxes 6 and 7. Such an indirect cooling system for the storage chambers 9 and 10 exerts a great effect as one requirement for maintaining the storage chambers 9 and 10 at high humidity.

By the way, the dew condensation on the inner surfaces of the heat conducting boxes 6 and 7 due to the entry of outside air by opening and closing the door 2 and the evaporation of water in the stored food, especially the dew condensation water that has dropped from the top plates 6A and 7A It drops on the dew receiving plates 12, 13 and drops on the bottom plates of the heat conduction boxes 6, 7 without wetting the food stored on the shelf 11 from the water draining parts 12A, 13A at the lower edges. The dew falling on the bottom plate of the upper heat conducting box 6 is further passed through the upper drain pipe 16 to form a lower dew receiving plate.
The water drops to 13 and drops on the bottom plate of the lower heat conducting box 7 from the water draining portion 13A at the lower edge thereof, and is discharged to the outside through the lower drain pipe 17.

Also, although not as much as the inner surface of the heat conducting boxes 6 and 7, the dew receiving plate 12 and
Condensation also forms on the surface of the dew receiving plates 12 and 13, especially on the lower surfaces of the dew receiving plates 12 and 13.
By the action of the
Spread evenly over the entire lower surface of the above, and due to the action of the inclination of the dew receiving plates 12 and 13, they are guided rearward and fall onto the bottom plates of the heat conducting boxes 6 and 7.

Next, another embodiment of the present invention will be described. In this embodiment, as clearly shown in FIG. 4 in which the lower surfaces of the dew receiving plates 12 and 13 are enlarged, grid-like streaks 31 are formed on the lower surfaces of the dew receiving plates 12 and 13, and the above-mentioned embodiment is formed thereon. Similarly to the above, a hydrophilic paint is applied to form a thin layer 15 of the hydrophilic paint as shown in FIG.

Further, as still another embodiment of the present invention, as shown in FIG. 6, the lower surface of the dew receiving plates 12 and 13 is subjected to pickling treatment to form a rough surface 32, and a hydrophilic paint is applied on the rough surface 32. As shown in FIG. 7, a thin layer 15 of hydrophilic paint is formed.

Due to the action of the grid-like streaks 31 and the rough surface 32, the ride of the paint is improved, and even if the thin layer 15 may peel off, the grid-like streaks 31 and the rough surface 32 are Since it is exposed to the lower surface of 12,13, the surface tension is weakened by the action of the lattice-shaped streaks 31, the so-called capillary phenomenon, or the action of the rough surface 32, and the water wettability and water retention are continuously maintained. The dew that has condensed on the lower surfaces of the dew receiving plates 12 and 13 spreads over the entire lower surface of the dew receiving plates 12 and 13 without forming water droplets, and moves backward due to the inclination of the dew receiving plates 12 and 13. It is guided and drops from the draining parts 12A, 13A onto the bottom plates of the heat conducting boxes 6, 7.

(G) Effect of the Invention As described above, according to the present invention, since the dew receiving plate is inclined,
Since the drop processing is performed from the lower edge of the dew receiving plate, it is possible to effectively prevent the dew condensation water from falling onto the stored food.

Further, since the present invention forms a rough surface on the lower surface of the dew receiving plate by subjecting the lower surface of the dew receiving plate to a grid-like streak or pickling treatment.
The water wettability and water retention can be maintained, and a more excellent effect can be exerted as a measure against falling of condensed water.

[Brief description of drawings]

1 is a front view of the cold storage of the present invention with the door removed, FIG. 2 is a vertical sectional side view of the cold storage of the present invention, FIG. 3 is a partial sectional view of a dew receiving plate, and FIG. FIG. 5 is a partially enlarged view of the other embodiment of the present invention before coating the lower surface of the dew receiving plate, FIG. 5 is a partial sectional view after coating of the dew receiving plate, and FIG. 6 is a dew receiving member of yet another embodiment of the present invention. FIG. 7 is a partially enlarged view before coating the bottom surface of the plate, and FIG. 7 is a partial cross-sectional view after coating the dew receiving plate. 6A, 7A ... top plate, 9,10 ... storage room, 12,13 ... dew receiving plate,
15: Thin layer of hydrophilic paint, 31: Lattice-like streaks, 32: Rough surface.

Claims (2)

[Claims] 1. A heat-conducting box is provided inside a heat-insulating box body having an opening / closing door at a front opening with a gap from the heat-insulating box body, and the inside of the heat-conducting box serves as a storage chamber. In addition, a cooling means is provided in the space between the heat-insulating box and the heat-conducting box to form a grid-like streak on the lower surface in a high-humidity low-temperature storage configured to indirectly cool the storage chamber. A high-humidity, low-temperature storage cabinet, characterized in that the dew receiving plate is provided, and the dew receiving plate is inclinedly arranged on the upper part of the storage chamber so as to face the top plate of the heat conducting box. 2. A heat-conducting box is provided inside the heat-insulating box body having an opening / closing door at the front opening with a gap from the heat-insulating box body, and the inside of the heat-conducting box serves as a storage chamber. In addition, a cooling means is provided in the space between the heat-insulating box and the heat-conducting box, and in the high-humidity and low-temperature storage configured to indirectly cool the storage chamber, the lower surface is subjected to pickling treatment. A high-humidity low-temperature storage characterized in that a dew receiving plate having a rough surface is provided, and the dew receiving plate is disposed in an upper portion of the storage chamber so as to face the top plate of the heat conducting box and is inclined.