JP4334741B2 - Hot air storage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot-air storage, and more specifically, hot air is forcibly circulated in a storage section disposed with a required space interposed in a heat insulation box, and the tableware stored in the storage section is heated to disinfect. -It relates to hot air storage that performs drying, etc.
[0002]
[Prior art]
A hot-air storage that disinfects and dries by bringing hot air into contact with tableware is equipped with a storage part inside the heat insulation box through a required space, and a shelf arranged in multiple stages in the storage part. A basket containing tableware is placed. The space includes an upper space defined at the top of the top plate of the storage unit, a side space defined outside the side plates facing the width direction of the storage unit, and a blower outlet formed at the lower end of the side space. And a bottom space communicating with each other. A suction port communicating with the upper space is formed in the top plate, and an impeller and a heater of the blower are disposed in the upper space.
[0003]
In the hot-air storage, by operating the blower, the air in the storage section sucked into the upper space through the suction port is heated by exchanging heat with the heater, and then the obtained hot air is caused to flow down to both side spaces. . Then, hot air blown out from the outlet of each side space into the bottom space is introduced into the storage portion and raised, and forcedly circulated back to the upper space from the suction port, whereby the tableware stored in the storage portion It is configured to disinfect and dry by heating.
[0004]
[Problems to be solved by the invention]
Each side plate defining the side space is formed with a plurality of blowing holes for blowing a part of hot air flowing down the side space into the storage portion, and hot air rising from the bottom space is difficult to contact. A structure is adopted in which the hot air is brought into contact with the tableware stored in the part to efficiently disinfect and dry. However, due to the rotational direction of the blower, the hot air flowing into the side space from the upper space flows down toward the portion corresponding to the front side in the rotational direction of the blower in the side space and corresponds to the rear side in the rotational direction. Only a small amount of hot air was blown out from the blowout holes provided in the portion to be touched, and the amount of hot air contact with the tableware varied depending on the storage position. For this reason, the temperature and the degree of drying of the tableware stored in the storage unit vary, and it takes a considerable time to heat and disinfect and dry all the tableware, thus increasing the power consumption. In addition, it is pointed out that the tableware is damaged when a large amount of hot air contacts only a part of the tableware.
[0005]
OBJECT OF THE INVENTION
The present invention has been proposed in view of the above-mentioned problems inherent in the prior art described above, and it has been proposed to suitably solve this problem, and the tableware stored in the storage section is heated substantially uniformly and in a short time. The object is to provide a hot-air storage that can be sterilized and dried.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and to achieve the intended purpose suitably, the present invention provides:
A storage unit disposed inside the heat insulation box and communicating with the bottom space defined in the heat insulation box, and a suction port formed in the top plate of the storage unit, defined in the upper part of the storage unit. And is defined between the upper space communicating with the interior of the storage section, both sides in the width direction of the storage section and the inner wall of the heat insulation box, and communicates with the upper space and through the blowout opening in the bottom space. By rotating the impeller disposed on the side space communicating with the upper space and the output shaft extending in the up and down direction, the air in the storage portion sucked into the upper space from the suction port is It has a blower that blows air in the centrifugal direction of the car and a heater that heats the air blown by the impeller to heat it, and forcibly circulates this hot air in the upper space, the side space, the bottom space, and the storage part In the hot air storage that was
Each side plate constituting the storage portion and defining the side space between the inner wall of the heat insulating box body has a blowout hole through which a part of hot air flowing down the side space is blown into the storage portion. Form the
On the side space side surface of each side plate, an air guide is provided extending in the vertical direction,
The flow of hot air flowing from the upper space into the side space in a direction corresponding to the front and rear of the impeller rotation direction is regulated by the air guide in the side space;
In the lower end of the side plate, a guide portion that is inclined at a required angle is formed on the inner wall side of the heat insulating box as it goes downward.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, the hot-air storage according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment.
[0008]
As shown in FIG. 1, the hot-air storage 10 according to the embodiment holds an inner wall and a required space 14 inside a heat insulating box 12 having a heat insulating structure filled with glass wool between the exterior and the interior. A storage portion 16 is provided. A plurality (four in the embodiment) of shelves 18 are arranged in multiple stages at a predetermined interval in the vertical direction inside the storage unit 16, and the baskets 20 that store tableware (not shown) are stored in each shelf 18. Are arranged in the width direction and the depth direction (in the embodiment, three rows in the width direction and two rows in the depth direction). The shelf 18 is configured by arranging a plurality of pipe members in parallel with a gap therebetween, and is configured to allow the vertical flow of hot air. Further, as shown in FIG. 2, two heat insulating doors 22 and 22 that open and close the opening formed in the heat insulating box body 12 are disposed on the front surface of the heat insulating box body 12 in a double door manner. The basket 20 is put in and out through the opening.
[0009]
As shown in FIG. 1, the space 14 is defined by an upper space 14 a defined at the top of the top plate of the storage unit 16 and the outside of both side plates 24, 24 facing the width direction of the storage unit 16. Side spaces 14b and 14b communicating with the space 14a and a bottom space 14c defined in the heat insulating box 12 and facing the storage portion 16 are formed, and the bottom space 14c is a lower end of both side spaces 14b and 14b. Are communicated with each other through the air outlets 26 and 26. The storage portion 16 communicates with the upper space 14a through a suction port 28a formed at the center of the top plate 28, and also communicates with the bottom space 14c, and the space 14 (14a, 14b, 14b, 14c) and the storage space. Hot air circulates in the portion 16 as will be described later. The air outlet 26 of each side space 14b is defined by the inner wall of the heat insulating box 12 and the side plate 24 of the storage portion 16, and the lower end (lowermost stage) of the side plate 24 (the storage portion side of the air outlet). And a guide 18a that is inclined at a required angle on the inner wall side of the heat insulation box 12 as it goes downward, and is substantially in the middle of the shelves 18 and 18 on the shelf 18). It is comprised so that the opening dimension of the blower outlet 26 may become small (refer FIG. 2). And this guide part 24a functions not only to flow toward the inner bottom face of the heat insulation box 12 but also to diffuse the hot air blown from the blower outlet 26 over a wide range in the storage part.
[0010]
On the ceiling portion 30 of the heat insulating box 12, the motor 34 of the blower 32 is disposed in an inverted state at a substantially central position facing the upper side of the suction port 28 a in the storage portion 16, and an output shaft 34 a of the motor 34 is provided. It extends into the upper space 14a through the through hole 30a of the ceiling portion 30, and an impeller 36 is disposed at the axial end thereof. Further, a heater 38 is disposed in the upper space 14a in the vicinity of the impeller 36 of the blower 32. The blower 32 is set so as to suck the air in the storage portion into the upper space 14 a from the suction port 28 a of the storage portion 16 and blow the air toward the heater 38. Therefore, by operating the blower 32 and rotating the impeller 36 in a predetermined direction (clockwise in FIG. 2 in the embodiment), the air sucked from the storage portion 16 side is heated by contacting the heater 38. After the hot air is formed, it flows into the both side spaces 14b and 14b.
[0011]
On the ceiling portion 30 of the heat insulation box 12, as shown in FIG. 5, an electrical box 40 in which various electronic components and the like are housed is disposed in front of the motor 34, and a damper (open / close controlled by a solenoid) An exhaust duct 42 provided with a none (not shown) is disposed on the left side of the motor 34, and each of these components 34, 40, 42 is a machine room internally defined in a cabinet 44 disposed in the ceiling 30. 46 is accommodated. A partition plate 48 formed in a U shape in plan view is disposed around the motor 34 in a state of opening rearward, and a self-cooling fan (not shown) disposed on the output shaft 34a of the motor 34. The hot air flowing into the machine room 46 through the through-hole 30a of the ceiling portion 30 due to the rotation of the inner wall 30 is prevented from coming into direct contact with the electrical box 40. The top panel 50 and the rear panel 52 constituting the cabinet 44 are respectively provided with a plurality of exhaust ports 50a and 52a. Hot air flowing into the machine chamber 46 from the through hole 30a is guided by the partition plate 48. Thus, the gas is discharged from the exhaust ports 50a and 52a to the outside.
[0012]
As shown in FIG. 1, a plurality of blowout holes 24 b are formed in the side plates 24, 24 of the storage portion 16 at positions facing the shelves 18, 18 that are spaced apart from each other. Part of the hot air flowing down 14b is configured to be blown into the storage portion 16 from the blowout hole 24b. Further, as shown in FIGS. 3 and 4, the air guide 54 extending in the vertical direction is provided on the surface of each side plate 24 on the side space 14 b side at a substantially central position in the front-rear direction (depth direction of the storage portion 16). Is arranged. In the air guide 54, the hot air flowing from the upper space 14a into the side space 14b is in a direction (front and rear in the depth direction) corresponding to the front and rear of the impeller 36 (blower 32) in the side space 14b. It functions to regulate the flow. That is, in the side space 14b, by restricting the flow of hot air toward the front side in the rotational direction of the impeller 36 (the rear side of the heat insulation box 12), the hot air is restricted over the entire side space 14b. The hot air is made to flow substantially uniformly, and hot air is blown into the storage portion 16 from all the blowout holes 24b.
[0013]
Incidentally, in the left side space 14b in FIG. 2, the front side in the rotational direction of the impeller 36 corresponds to the rear side of the heat insulation box 12, the rear side in the rotation direction corresponds to the front side of the heat insulation box 12, and In the side space 14b, opposite to the left side, the front side in the rotational direction of the impeller 36 corresponds to the front side of the heat insulation box 12, and the rear side in the rotation direction corresponds to the rear side of the heat insulation box 12. The air guide 54 extends over substantially the entire length of the side space 14b in the height direction. Further, instead of forming the plurality of blowing holes 24b in the side plate 24, one long hole (blowing hole) having a required length in the front-rear direction may be formed.
[0014]
[Effect of the embodiment]
According to the hot-air storage 10 according to the embodiment configured as described above, when the storage 10 is operated, the air in the storage 16 is blown by the blower 32 through the suction port 28a into the upper space 14a. Then, the air is blown toward the heater 38, where it is heated by heat exchange to become hot air and then flows into the side spaces 14b and 14b. As shown in FIG. 1, a part of the hot air flowing into each side space 14b is blown into the storage portion from a blow hole 24b formed in the side plate 24 of the storage portion 16, and the cages 20 (both sides in the width direction) are located near the side plate. And heating the tableware contained in the basket 20). At this time, as shown in FIGS. 2 and 3, the air guides 54 arranged on the side plates 24 cause the hot air to flow in the side space 14 b toward the front side in the rotational direction of the impeller 36. Since it is regulated, hot air is blown out almost uniformly from all the blowout holes 24b into the storage portion.
[0015]
The hot air that flows down the both side spaces 14b and 14b and blows out from the outlets 26 and 26 to the bottom space 14c collides with the inner bottom surface of the heat insulating box 12 and is deflected to flow toward the center in the width direction. . At this time, a part of the hot air blown from the air outlet 26 is guided by the guide plate 24a by the guide portion 24a of the side plate 24 defining the air outlet 26 and flows obliquely into the storage chamber. That is, the hot air blown out from the outlet 26 is diffused not only in the flow toward the center in the width direction along the inner bottom surface but also in each direction. As a result, hot air also flows in the vicinity of the inside of the side plate 24, and the tableware stored in the vicinity of the side plate 24 can be heated to perform disinfection and drying in a short time. In particular, the hot air is also in direct contact with the tableware stored at the lower ends on both sides of the storage unit 16 so that disinfection and drying do not become incomplete.
[0016]
Both hot air blown out from the outlets 26, 26 and flowing toward the center of the bottom space 14c ascends the central portion in the storage portion 16 and is stored in the cage 20 placed in the center of the shelf 18. Hot air is efficiently brought into contact with the dishes and heated to disinfect and dry. And the hot air which heated the tableware is again sucked into the upper space 14a from the said suction inlet 28a, and the circulation mentioned above is repeated.
[0017]
By providing the air guide 54 in the side space 14b as in the embodiment, hot air is blown out almost uniformly from all the blow holes 24b formed in the side plate 24 into the storage portion 16 so that it is stored in the storage portion 16. Tableware does not vary in temperature, degree of drying, etc. depending on its storage position, and all tableware can be heated and disinfected and dried in a short time. That is, since it is possible to eliminate the occurrence of a place where disinfection / drying is incomplete in the storage unit, moisture does not remain in the disinfected tableware. In addition, for example, even when a plurality of baskets 20 are arranged before and after the storage unit 16 in the depth direction, the dishes stored in all the baskets 20 can be uniformly sterilized and dried. Furthermore, it can suppress that a lot of hot air contacts only a specific tableware, and can prevent it from shortening the lifetime of a tableware. In addition, by providing the air guide 54 on the side plate 24 as in the embodiment, the strength of the side plate 24 can be improved, the thickness of the side plate 24 can be reduced, and the cost can be reduced.
[0018]
In the embodiment, since the motor 34 of the blower 32 housed in the machine room 46 is surrounded by the partition plate 48, the machine room 46 passes through the through hole 30 a of the ceiling portion 30 through which the output shaft 34 a of the motor 34 is inserted. It is possible to prevent the hot air flowing into the electrical equipment box 40 from coming into direct contact with the electrical equipment box 40, and to reduce the thermal load on the electrical components stored in the electrical box. Further, since the hot air guided by the partition plate 48 is efficiently discharged outside from the top panel 50 of the cabinet 44 and the exhaust ports 50a and 52a of the rear panel 52, it is possible to prevent heat from being accumulated in the machine chamber 46. In addition, the heat load of the solenoid provided in the exhaust duct 42 can be reduced.
[0019]
In the embodiment, the case where one air guide is provided has been described. However, a plurality of air guides may be provided in parallel according to the length dimension of the side space in the front-rear direction (depth direction). Further, when a plurality of air guides are provided, it is possible to adopt a configuration in which the amount of hot air blown out from all the blowout holes is made uniform by setting the length dimensions (vertical dimensions) of each guide to be different. . The air guide may be disposed on the wall surface of the heat insulating box or on both the wall surface and the side plate. Furthermore, the number of steps of the shelf and the number of the baskets placed on the shelf in the width direction or the depth direction are not limited to the embodiment.
[0020]
【The invention's effect】
As described above, in the hot air storage according to the present invention, by providing the air guide in the side space, the hot air can be blown into the storage portion substantially uniformly from all the blow holes formed in the side plate. The tableware stored in the storage unit does not vary in temperature, the degree of drying and the like depending on the storage position, and all the tableware can be heated and disinfected and dried in a short time. Therefore, even when a plurality of baskets are arranged before and after the storage unit in the depth direction, the dishes stored in all the baskets can be uniformly sterilized and dried. Moreover, it can prevent that the lifetime of a tableware becomes short, without being damaged by a large amount of hot air contacting only a specific tableware.
And the guide part which inclines at a required angle on the inner wall side of the heat insulation box body as it goes downward is formed at the lower end of the side plate that defines the air outlet of the side space, and the air outlet flows down the side space. The hot air blown into the bottom space not only flows toward the center in the width direction, which is deflected by colliding with the inner bottom surface of the heat insulation box, but also part of the hot air flows diagonally into the storage portion by the guide portion. Can guide. That is, since the hot air blown out from the air outlet is diffused in each direction, the hot air also flows in the vicinity of the inside of the side plate, and the dishes stored in the vicinity of the side plate are heated to disinfect and dry for a short time. You can do that.
[0021]
Further, since all tableware can be heated and disinfected / dried in a short time, the operation time of the storage can be shortened, power consumption can be reduced, and a blower or heater having a small capacity can be adopted. Incidentally, by disposing the air guide to the side plates defining a side space, said guide also functions as a reinforcing material, it is possible to set thin plate thickness by improving the strength of the side plate, It has the advantage of reducing costs.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view showing a hot-air storage according to a preferred embodiment of the present invention.
FIG. 2 is a cross-sectional plan view showing a hot-air storage according to an embodiment.
FIG. 3 is a longitudinal side view showing a hot-air storage according to an embodiment.
FIG. 4 is a schematic perspective view of a side plate constituting a storage unit.
FIG. 5 is a schematic perspective view of a main part of a hot-air storage with the cabinet broken.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 12 Heat insulation box, 14a Top space, 14b Side space, 14c Bottom space 16 Storage part, 24 Side plate, 24b Outlet, 26 Outlet, 32 Blower 38 Heater, 54 Air guide , 24a Guide part

Claims (2)

A storage part (16) disposed inside the heat insulation box (12) and communicating with the bottom space (12c) defined in the heat insulation box (12), and an upper part of the storage part (16). An upper space (14a) that communicates with the storage section (16) through a suction port (28a) formed in the top plate (28) of the storage section (16), and the width of the storage section (16). Defined between the two side portions in the direction and the inner wall of the heat insulation box (12), and communicates with the upper space (14a) and through the outlet (26, 26) to the bottom space (14c). By rotating the impeller (36) disposed in the side space (14b, 14b) communicating with the upper space (14a) and the output shaft (34a) extending vertically, the suction port A blower (32) that blows air in the storage section (16) sucked into the upper space (14a) from (28a) in the centrifugal direction of the impeller (36), and air blown by the impeller (36) It was heated and a heater (38) to hot air, the hot air upper space (14a), the side space (14b, 14b), the bottom In the space (14c) and a hot air depot which is adapted to be forcibly circulated in the housing portion,
Each side plate (24) constituting the storage portion (16) and defining the side space (14b) between the inner wall of the heat insulating box (12) has the side space (14b). A part of the hot air that flows down forms a blowout hole (24b) that is blown into the storage part,
On the side space (14b) side surface of each side plate (24), an air guide (54) is provided so as to extend vertically.
The flow of hot air flowing into the side space (14b) from the upper space (14a) in the direction corresponding to the front and rear of the impeller (36) in the direction of rotation of the impeller (36), the air guide ( 54)
A hot-air storage, characterized in that a guide portion (24a) that is inclined at a required angle is formed at the lower end of the side plate (24) on the inner wall side of the heat insulation box (12) as it goes downward.   Inside the storage part (16), a plurality of shelves (18) that allow hot air to flow in the vertical direction are arranged in multiple stages at a predetermined interval in the vertical direction, and the blowout holes (24b) The hot-air storage according to claim 1, wherein the hot-air storage is formed at a position facing the shelves (18, 18).

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