JP2771640B2 - Dew receiving device for high humidity and low temperature storage - Google Patents

Description

The present invention relates to a high-humidity low-temperature storage for indirectly cooling a storage room defined inside a heat insulating box and maintaining the storage room at a high humidity. In particular, the present invention relates to improvement of a dew receiving device provided in a storage room.

(B) Conventional technology As a conventional technology, Japanese Utility Model Publication No. 64-41880 discloses that a storage room covered with a casing made of a heat insulating material and a door body made of a heat insulating material is cooled by an evaporator of a refrigeration cycle. A fresh food storage device is disclosed in which a dew receiving plate made of a cloth of water-absorbent fiber is installed in the storage room.

(C) Problems to be Solved by the Invention Such a dew receiving plate of the prior art is provided to prevent moisture from dropping onto food. However, if the storage room has a plurality of shelves for placing food thereon, the dew receiving plate only exerts an effect on the food on the uppermost shelf, and does not affect the food on the lower shelf. The
Water drops adhering to the shelf located immediately above drop, and in addition to this, when food is placed on a stainless steel tray or the like and placed on the shelf, even the water drops adhering to this tray are There is a problem that the composition is dripped on food and remarkably degrades the quality of the food.

The present invention provides a dew receiving device for a high-humidity and low-temperature storage for protecting all foods placed in a storage room from dew condensation water.

(D) Means for Solving the Problems In order to achieve the above object, the present invention provides a heat conduction box inside a heat insulation box provided with an opening / closing door at a front opening at an interval from the heat insulation box. Disposed, the inside of the heat conduction box is a storage room, a plurality of shelves are disposed in the storage room, and cooling means is disposed in a space between the heat insulating box and the heat conduction box, In a high-humidity low-temperature storage configured to indirectly cool a storage room, a dew receiving plate for a top plate is inclinedly disposed below a top plate of the heat conduction box, and a shelf excluding a lowermost shelf is provided. This is a dew receiving device for a high-humidity and low-temperature storage in which a dew receiving plate for a shelf is detachably mounted on the lower side of the storage device.

(E) Operation According to the present invention, when the heat conduction box is cooled, the air in the storage room is indirectly cooled via the heat conduction box. At the very end, dew condensation on the top plate of the heat conduction box and drops as water drops from the top plate are received by the dew receiving plate for the top plate, guided by the inclination of the dew receiving plate to the rear, and The food placed on the shelf is drained without wetting.

Condensed water adhering to the upper shelf is received by the shelf dew receiving plate, guided to the rear by the inclination of the dew receiving plate, and drained without wetting food placed on the lower shelf. You.

(F) Example A high-humidity low-temperature storage provided with the dew receiving device of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a heat insulating box provided with an opening / closing door 2 at a front opening, and the heat insulating box 1 is formed by filling a heat insulating material between the inner and outer boxes. This heat insulation box 1
Inside, for example, an upper heat conduction box 6 and a lower heat conduction box 7 made of stainless steel are fixedly provided at intervals with all the inner wall surfaces of the heat insulating box body 1. The formed space is used as the cold air passage 8 and the inside defined by the upper heat conduction box 6 and the lower heat conduction box 7 is an upper storage room 9 and a lower storage room 10, respectively. In addition, each storage room 9,10
A plurality of stages of net shelves 13A and 13B on which the foods 12 stored in the tray 11 are placed are arranged vertically.

Thus, on the upper part of the upper storage chamber 9, a stainless steel plate or the like is provided as a top plate dew receiving plate facing the top plate 6A of the upper heat conduction box 6 inclined rearward at a small interval. A metal upper dew receiving plate 14A is detachably disposed at a low angle of about 7 degrees to the rear, and is similarly disposed above the lower storage room 10.
A lower dew receiving plate 14B made of metal, which is opposed to the top plate 7A at a small distance, is disposed so as to be detachable at a low angle of about 7 degrees rearward.

The upper and lower dew receiving plates 14A and 14B for the top plate have a tray shape having rising walls on the front and both sides, and the lower ends located behind the rear ends of the shelves 13A and 13B are bent downward. And drainer 14
C and 14D are formed.

Such a top plate dew receiving plate 14A, 14B is a heat conduction box 6, 7, respectively.
It is supported on a support rail 15 fixed to both side walls so as to be freely drawn out.

Next, the shelf dew receiving device will be described. As shown in FIG. 1 and FIG.
It is detachably attached to the lower side of 13A. More specifically, the shelf dew receiving plate 16 is opposed to and close to the lower surface of the shelf 13A,
It has a rising wall on the front and both sides, the bottom plate is in the shape of a saucer with a low inclination rearward, and the lower end of the bottom plate located behind the rear end of the shelf 13A is bent downward to form the draining portion 16A. Has formed. At the upper end of the rising wall on both sides, a dew receiving plate
In order to support the shelf 16 on the shelf 13A, a hook 16B is formed to be engaged with the outer frame of the shelf 13A.

In the above configuration, the top plate dew receiving plates 14A, 14B
On the lower surface of the shelf receiving plate 16, a hydrophilic paint is applied to form a thin layer 17 of a hydrophilic paint as shown in the sectional view of FIG.

The upper storage room 9 and the lower storage room 10 are inserted through the top plate 7A of the lower heat conduction box 7 from the bottom plate of the upper heat conduction box 6 so that the lower dew receiving plate 14B
The lower storage room 10 and the outside hang from the bottom plate of the lower heat conduction box 7 through the bottom wall of the heat-insulating box 1 and hang down to the outside of the box 1. It communicates via the lower drain pipe 18B.

Further, the cool air passage 8 between the top wall of the heat insulating box 1 and the top plate 6A of the upper heat conduction box 6 opposed thereto has a blowout port 19 at the front as a cooling means and a suction port at the rear. A unit cover 21 having 20 is provided. Inside the unit cover 21, a refrigerating evaporator 22 and a blower for cooling air circulation 23 facing the outlet 19 are accommodated. The evaporator 22 is connected to the electric compressor 24 and the condenser 25 mounted on the top wall of the box 1 to form a refrigeration cycle. 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 conduction boxes 6 and 7 opposed thereto, a vertical partition plate 27 is disposed in the vertical direction to form the discharge passage 8A. A return passage 8B is formed, and both passages communicate with each other at a lower communication port 28. Further, in the cold air passage 8 between the bottom plate of the upper heat conduction box 6 and the top plate of the lower heat conduction box 7, a horizontal horizontal partition plate 30 having a communication port 29 formed at the front is disposed. .

In the above configuration, the cool air heat exchanged by the evaporator 22 is discharged from the outlet 19 to the cool air passage 8 by the blower 23 and circulated through the path indicated by the arrow in FIG. After cooling, the lower heat conduction box 7 is cooled through the communication port 29, and is returned from the lower communication port 28 through the return passage 8B.
From 20, it is returned to the evaporator 22 again. Thereby, the air in the upper storage room 9 and the lower storage room 10 is indirectly cooled via the upper and lower heat conduction boxes 6 and 7. Such storage rooms 9,10
The indirect cooling method described above has a great effect as one requirement for maintaining the storage rooms 9 and 10 at a high humidity.

By the way, dew is condensed on the inner surfaces of the heat conduction boxes 6 and 7 due to the invasion of the outside air by opening and closing the door 2 and evaporation of the moisture in the food 12, and in particular, the condensed water dropped from the top plates 6A and 7A is the upper and lower portions, respectively. It falls on the dew receiving plates 14A and 14B, and falls on the bottom plates of the heat conduction boxes 6 and 7 from the draining portions 14C and 14D at the lower edges. Then, the dew dropped on the bottom plate of the upper heat conduction box 6 is further discharged to the upper drain pipe 18A.
Through the lower dew receiving plate 14B.
From 4D, it falls on the bottom plate of the lower heat conduction box 7 and the lower drain pipe
Drained outside through 18B. Therefore, the dew condensation water that has fallen from the top plates 6A and 7A causes the food 1 to be placed on the upper shelf 13A.
2 can be prevented from dripping.

In addition, although not as much as the inner surfaces of the heat conduction boxes 6 and 7, dew also forms on the top plate dew receiving plates 14A and 14B. Due to the action of the thin layer 17 of the hydrophilic paint having water retention, it spreads evenly over the entire lower surface of the dew receiving plates 14A and 14B without becoming water droplets, and flows backward due to the tilting action of the dew receiving plates 14A and 14B. , And fall on the bottom plate as being pulled by the action of the drainers 14C, 14D.

By the way, the moisture is not limited to dew condensation on the top plates 6A and 7A of the heat conduction boxes 6 and 7, and the moisture is not limited to the shelves 13A and 13B or the food 1 as in the embodiment.
When the tray 2 is accommodated in the tray 11, dew condensation also occurs on the tray 11. Condensed water adhering to the upper shelf 13A and the upper tray 11 falls on the shelf dew receiving plate 16 as water droplets, and flows from the low-end edge draining portion 16A to the heat conduction boxes 6,7. Fall on the bottom plate. Subsequent drainage treatment, the top plate dew receiving plate 14A,
The description is omitted because it is the same as 14B.

In this way, it is possible to prevent the dew water dropped from the upper shelf 13A and the upper tray 11 from dropping on the food 12 placed on the lower shelf 13B.

Also, the dew condensed on the lower surface of the shelf dew receiving plate 16 spreads uniformly over the entire lower surface of the dew receiving plate 16 without being formed by water droplets due to the action of the thin layer 17 of the hydrophilic paint.
Flows downward due to the tilting action of, and falls on the bottom plate as being pulled by the action of the drainer 16A.

It should be noted that the dew water adhering to the lower shelf 13B and the lower tray 11 falls onto the bottom plates of the heat conduction boxes 6, 7, so that it is not necessary to provide a dew receiving device on the lower shelf 13B.

FIG. 4 shows the dew receiving plates 14A and 14B for the top plate and the dew receiving plate 16 for the shelf.
The lower surface of FIG. 1 is shown in an enlarged manner, and a lattice-like streak 27 is formed on the lower surface by means of Scotch Bright or the like. In this case, due to the action of the lattice-like streaks 27, the so-called capillary phenomenon, the dew condensed on the lower surface of each of the dew receiving plates 14A, 14B and 16 does not become water droplets, similarly to the case where the hydrophilic paint is applied, The wastewater will be treated.

Note that the number of shelves is not limited to the embodiment, and when the number of shelves increases, a shelf dew receiving plate is provided except for the lowest shelf. Further, the dew receiving plate is not limited to the embodiment and the material of the embodiment, but can be appropriately changed.

(G) Effect of the Invention As described above, the present invention provides a high-humidity low-temperature storage having a plurality of shelves in a storage room, the lower side of the shelves excluding the lower side of the top plate of the heat conduction box and the lowermost shelf. Water drops falling from the top plate of the heat conduction box and water drops falling from the shelves do not drop on food placed on each shelf, Good food quality can be maintained.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of a high-humidity low-temperature storage according to the present invention, and FIG.
The figure is a perspective view of a shelf dew receiving plate attached to a shelf, FIG. 3 is a partial cross-sectional view of a dew receiving plate showing an example in which a thin layer of hydrophilic paint is formed on the lower surface, and FIG. It is a partial bottom view of the dew receiving plate which shows the example which formed the streak. 6,7: Thermal conduction box, 6A, 7A: Top plate, 13A, 13B: Shelf, 14
A, 14B: Dew receiving plate for top plate, 16: Dew receiving plate for shelf.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 64-31974 (JP, U) Japanese Utility Model Sho 55-181183 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) F25D 21/14 F25D 17/08 311

Claims (1)

(57) [Claims] 1. A heat conducting box is disposed inside a heat insulating box having an opening / closing door at a front opening thereof with an interval from the heat insulating box, and the inside of the heat conducting box is used as a storage room. A high-humidity / low-temperature apparatus comprising a plurality of shelves provided in the storage room, and a cooling means provided in a space between the heat-insulating box and the heat conduction box to indirectly cool the storage room. In the storage, a dew receiving plate for the top plate is inclinedly disposed below the top plate of the heat conduction box, and a dew receiving plate for the shelf is removably tilted below the shelf except the bottom shelf. A dew receiving device for a high-humidity and low-temperature storage, which is provided.