JPH0719711A - Low temperature storage box - Google Patents

Abstract

PURPOSE:To smoothly discharge drain such as defrosted water, etc., from an evaporator without impairing an external appearance and to easily conduct maintenance. CONSTITUTION:A low temperature storage box 1 comprises a heat insulation box 6 having openings 7, 8 at front and rear surfaces, doors 44, 46 for openably blocking the front, rear openings 7, 8 of the box 6, an evaporator 33 arranged at an upper part in the box 6, and a drain pan 71 arranged at a lower side of the evaporator 33. The box 1 further comprises a drain tube 72 for discharging drain received by the pan 71 out of the box 6, and a vertical partition member 13 mounted from a ceiling wall 6A to a bottom wall 6B of the box 6 in the opening 8 of the box 6. The tube 72 is guided below the box 6 through the member 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low temperature storage in which an evaporator is arranged in the upper part of a heat insulating box having an opening opened by front and rear doors.

[0002]

2. Description of the Related Art Conventionally, a low-temperature storage of this kind has a space in a heat-insulating box which is open to the front, as shown in, for example, Japanese Patent Laid-Open No. 2-279970 (F25D17 / 08) as a so-called indirect cooling low-temperature storage. And a heat conduction box is installed,
The inside of this heat conducting box is formed as a storage room, and the evaporator and the blower of the cooling unit are arranged in the upper space between the heat conducting box and the heat insulating box, and the cool air cooled by the evaporator is lowered by the blower. The structure was such that the storage chamber was cooled from the wall surface of the heat conducting box by forcibly circulating it within the interval.

In such a low temperature storage, when draining defrosting water from the upper evaporator, as shown in FIG. 9, a concave groove extending vertically is formed on the rear surface 100A of the heat insulating box 100 which is open to the front. The drainage pipe 102 which forms 101 and is drawn out from the heat insulating box 100 is guided to the lower side of the heat insulating box 100 through the recessed groove 101.

[0004]

By the way, in a hotel, a restaurant, etc., it is necessary to temporarily store the food prepared in the kitchen in the low temperature storage until it is provided to the customer. However, since the conventional cold storage was opened only on the front side as described above, it is necessary to take out and store the cooked food from the same direction,
There was a problem that the provision of food to customers and the supplementation of food to the storage room could not be performed smoothly.

Therefore, if the low-temperature storage has a structure in which the front and rear surfaces are opened, it is possible to store food from one opening and take it out from the other opening, and the above problem can be solved. Since the box does not have a back surface, the heat insulating box 10 having front and rear surfaces opened as shown in FIG.
A concave groove 104 extending vertically on both side surfaces 103B and 103B
The drainage pipe 102 has to be guided through the concave groove 104 to the lower side of the heat insulating box 103, and if both side surfaces of the low temperature storage cannot be brought into close contact with the wall surface, a problem in appearance occurs. .

As a structure for solving such a problem, conventionally, for example, as shown in FIG. 11, an evaporator 10 which constitutes a cooling device together with condensers 111, 111 and a compressor (not shown).
8 and 108 are inside 1 of the heat-insulating box 106 that opens at the front and rear
07 Dew pans 109, 109 are provided on both sides of the upper part of the evaporators 108, 108 below the evaporators 108, respectively, and they are inclined to the outside low, and drainage channels 110, 110 communicating with the dew pans 109, 109 are provided. Was formed in both side walls 106A, 106A and the bottom wall 106B of the heat insulating box body 106, the external appearance is improved by such a structure, but when dust clogging occurs in the drainage channels 110, 110, etc. , There was a problem that it was extremely difficult to carry out repairs.

The present invention has been made to solve the above-mentioned conventional technical problems, and impairs the appearance in a low-temperature storage in which an evaporator is arranged in the upper part of the inside of a heat insulating box having openings in the front and rear. It is an object of the present invention to smoothly discharge drainage such as defrosting water from an evaporator and to easily perform repairs even when clogging of dust occurs.

[0008]

That is, the low temperature storage 1 according to the invention of claim 1 has a heat insulating box 6 having openings 7 and 8 on the front and rear surfaces, and front and rear openings 7 and 8 of the heat insulating box 6. The doors 44 and 46 that are openably and closably closed, the evaporator 33 of the cooling device disposed in the upper portion of the heat insulating box 6, the dew tray 71 disposed below the evaporator 33, and the dew Drain pipe 72 for discharging the waste water received in the tray 71 to the outside of the heat insulating box body 6.
And the top wall 6 of the heat insulating box 6 at the opening 8 of the heat insulating box 6.
Vertical partition member 13 attached from A to the bottom wall 6B
The drainage pipe 72 is led out below the heat insulating box 6 through the inside of the vertical partition member 13.

Further, in the low temperature storage 1 of the invention of claim 2, in the above, the vertical partition member 13 is provided with a pair of heat insulating materials 56, 5.
7 and a pipe body 58 sandwiched between the two heat insulating materials 56 and 57, a drain pipe 72 is inserted into the pipe body 58, and an air layer G is formed between the drain pipe 72 and the pipe body 58. It is a thing.

[0010]

According to the low temperature storage 1 of the invention of claim 1, the inside of the heat insulating box 6 is cooled to a predetermined temperature by the evaporator 33 arranged at the upper portion, and the heat insulating box is opened by opening the doors 44 and 46. Since the inside of the body 6 is opened in the front-rear direction, articles can be stored from one side and taken out from the other side. Therefore, while storing articles such as food at low temperature in the heat insulating box 6,
It becomes possible to smoothly provide these articles and replenish them in the heat insulating box 6.

Further, drainage such as defrosting water from the evaporator 33 is received by the dew tray 71, passes through the drain pipe 72, and the heat insulating box body 6 is provided.
The drainage pipe 72 is discharged to the outside, and the drainage pipe 72 is attached from the top wall 6A of the heat insulating box 6 to the bottom wall 6B.
Since it is led out to the lower side of the heat insulating box body 6 through the inside 3, it is not necessary to vertically form a groove or the like for passing the drainage pipe 72 in the heat insulating box body 6 as in the conventional case, the structure is simplified and the appearance is The above problem is also solved. Further, when the drain pipe 72 is clogged with dust or the like, the drain pipe 72 can be easily repaired by disassembling or removing the vertical partition member 13.

Particularly, according to the low temperature storage 1 of the invention of claim 2, the vertical partition member 13 is constituted by a pair of heat insulating materials 56 and 57 and a pipe body 58 sandwiched between them, and the drain pipe is provided. Since 72 is inserted through the pipe 58, the drainage pipe 72 can be easily inserted and the vertical partitioning member 13 can be easily assembled and disassembled, and the workability of assembly and repair is further improved. Furthermore, these drain pipes 7
Since the air layer G is formed between the pipe 2 and the pipe 58, the drain pipe 7
2 is thermally insulated from the outside by both the heat insulating materials 56 and 57 and the air layer G, and the refreezing of the drainage in the drainage pipe 72 is reliably eliminated.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a vertical side view of a low temperature storage 1 according to an embodiment of the present invention, FIG. 2 is a vertical front view of the low temperature storage 1, FIG. 3 is a rear perspective view of the low temperature storage 1, and FIG. 4 is a front perspective view of the low temperature storage 1. is there. The low-temperature storage 1 of the embodiment is installed in, for example, a kitchen of a restaurant, and the heat insulating material 4 is provided between the inner and outer boxes 2 and 3.
It is constituted by a heat insulating box body 6 filled with. The heat insulating box 6 has openings 7 and 8 at the front and rear, and one side portion of the ceiling wall 6A is projected upward to form a projecting portion 9 and the inside thereof is cooled downward. The chamber 11 is configured.

The front and rear openings 7, 8 of the heat insulating box 6 are vertically divided by horizontal partition members 50, 51, respectively.
The vertical partition members 12 and 13, which will be described later in detail, partition the left and right sides, respectively. Then, the horizontal partition members 50, 5
A mounting plate 14 is installed between the two to partition the inside of the heat insulating box 6 into upper and lower parts. The vertical partitioning member 12 of the opening 7 on the front side is configured by incorporating a heat insulating material, and is attached between the top wall 6A and the bottom wall 6B of the heat insulating box body 6 at a substantially central portion of the opening 7.

On the other hand, as shown in FIGS. 6 to 8, the vertical partitioning member 13 of the opening 8 on the rear surface is provided with a pair of front and rear heat insulating materials 56 and 57 made of, for example, styrofoam, and a pipe body 58 made of, for example, hard vinyl chloride. And the tube 58 is the heat insulating material 5.
It is sandwiched between inner surface semicircular grooves 56A and 57A formed on the surfaces of 6, 57 which face each other. Also, the heat insulating material 5
A front plate 59 and a rear plate 61 made of steel plates are provided before and after 6, 57, and the breaker 6 is provided on these side surfaces.
2, 62 are fixed by screws 63, and the main body 13A of the vertical partition member 13 is integrated. The front plate 59 and the rear plate 6
Flange-shaped guides 59A and 61A bent toward the heat insulating materials 56 and 57 are formed at the upper and lower ends of the pipe 1.
8 is positioned by these guides 59A and 61A.

The guide 5 of the front plate 59 and the rear plate 61
9A and 61A, screw holes 67 and 6 projecting from both sides
At 7, the main body 13A is fixed to the lower surface of the top wall 6A and the upper surface of the bottom wall 6B of the heat insulating box 6 in the substantially central portion of the opening 8, and then the side surface cover 64 ... The vertical partitioning member 13 is completed by arranging and the corner members 66. still,
6 and 7 show the main body 13A in a reduced vertical size. Further, in FIG. 3, the front plate 59 is omitted. on the other hand,
On the top wall 6A and the bottom wall 6B of the heat insulating box body 6, the pipe body 58 is provided.
Through holes 68 and 69 are provided corresponding to the upper and lower ends of
As a result, the inside of the tube body 58 is communicated with the upper side and the lower side of the heat insulating box body 6.

Inside the heat-insulating box body 6, upper and lower heat-conducting boxes 21 and 22 formed of a heat-conductive material such as stainless steel and opened at the front and rear are respectively arranged at a predetermined distance from the inner surface of the heat-insulating box body 6. It is stored and disposed above and below (it is deleted in FIG. 5). At this time, the lower heat conducting box 22 is fixed below the mounting plate 14 on the mounting plate 23 provided on the upper surface of the bottom wall 6B of the heat insulating box body 6 with a space from the bottom wall 6B. The upper heat conducting box 21 is fixed on the mounting plate 14 by a mounting plate 24 with a distance from the mounting plate 14. Further, the front and rear opening edges of the upper and lower heat conducting boxes 21, 22 are in contact with the inner surface of the heat insulating box body 6, so that the inside and the bottom of the upper and lower heat conducting boxes 21, 22 are spaced from each other and between the heat insulating box body 6. Heat conduction box 21, 22
Upper and lower storage chambers 31 and 32 that are separated from each other and open to the front and rear are formed. A plurality of shelves 35 are installed in each storage chamber 31, 32.

On the other hand, an evaporator 33, which constitutes a cooling device, and fans 34, 34 are housed in the cooling chamber 11, and are placed on the top wall 6A of the heat insulating box 6 on the side of the overhanging portion 9. Similarly, a compressor 36, a condenser 37, and the like, which constitute a cooling device, are installed. Also, both sides of the mounting plate 14 and each mounting plate 2
Through holes 14A, 23A, and 24A are formed in the holes 3 and 24, respectively.
A series of cold air passages 39 are formed between the heat insulating box 6 and the upper and lower heat conducting boxes 21, 22.

Further, the cooling chamber 11 has the cold air passage 39.
Is a part of the upper heat conducting box 21 above the side wall of the overhanging portion 9 on the condenser 37 side in the range from the front end of the heat insulating box 6 to the rear edge of the evaporator 33. A cover 41 for closing the cold air passage 39 and the rear surface of the evaporator 33 is attached. Further, a space communicating with the cool air passage 39 is formed above the evaporator 33, and the blowers 34, 34 are arranged below the evaporator 33. With such an arrangement, the blowers 34, 34 are located above one side of the upper heat conducting box 21, and the blower side of the blower 34 (the upper corner of the upper heat conducting box 21 on one side).
As the air outlet 42, and the other upper corner of the upper heat conducting box 21 as the suction port 43. Therefore, the cover 41 forms a partition between the air outlet 42 and the suction port 43.

Further, a dew tray 7 is provided below the evaporator 11.
1 is provided. The dew tray 71 is slanted low toward the center of the heat insulation box 6, and the drain pipe 7 is provided at the lowermost end thereof.
Two are connected. The drainage pipe 72 is pulled out rearward from the overhanging portion 9, and further, through the through hole 68, the pipe body 5 of the vertical partition member 13.
8 is inserted. The drain pipe 72 is then drawn out from the through hole 69 to the lower side of the heat insulating box body 6 and connected to the trap portion 73 on the lower surface of the heat insulating box body 6. At this time, the outer diameter of the drain pipe 72 is smaller than the inner diameter of the pipe body 58, and the through holes 68 and 69 are sealed by the sealing materials 74 and 76.
A closed air layer G is formed between the tube body 58 and the tube body 58.

The front and rear openings 7 and 8 of the heat insulating box 6 are openably and closably closed by two pairs of upper and lower heat insulating doors 44, 44, 46 and 46, respectively. At this time, the gaskets 78 on the inner peripheral edges of the heat insulating doors 44 and 46 are in close contact with the opening edges of the heat insulating box 6, the vertical partition members 12 and 13 (front plate 59), and the horizontal partition members 50 and 51 to seal them. And the cold storage 1 is installed between the kitchen and the seats,
The front opening 7 is on the kitchen side and the rear opening 8 is on the passenger seat side. When the compressor 36 and the blower 34 of the cooling device are operated, the cool air cooled by the evaporator 33 is sucked downward by the blower 34 and blown downward from the air outlet 42. The cold air blown out from the air outlet 42 flows into the cold air passage 39 on one side of the upper heat conducting box 21 as shown by the arrow in FIG. 2 and flows down there, and then a part of the cold air passes through the through holes 14A. And flows into the cool air passage 39 on one side of the lower heat conducting box 22 as it is, and the rest flows into the cool air passage 39 between the upper and lower heat conducting boxes 21 and 22.

The cool air that has flowed into the cool air passage 39 on one side of the lower heat conducting box 22 flows into the cool air passage 39 below the lower heat conducting box 22, and then passes through the through holes 23A and 23A. It flows into the cold air passage 39 on the other side of the heat conducting box 22. The cold air that has flowed into the cold air passage 39 on the other side of the lower heat conducting box 22 rises there and flows into the cold air passage 39 on the other side of the upper heat conducting box 21 from the through hole 14A. And the upper and lower heat conducting boxes 21, 2
The cold air that has passed through the cold air passage 39 between the two rises up in the cold air passage 39 on the other side of the upper heat conducting box 21 and cools above the upper heat conducting box 21 from the suction port 43. It flows into the passage 39.

The cool air that has flowed into the cool air passage 39 above the upper heat conducting box 21 flows rearward from the other side of the upper heat conducting box 21 and rises in the cooling chamber 11 behind the evaporator 33. Then, it returns to the evaporator 33 from above the evaporator 33. By such a series of forced circulation of cold air, the cold air from the evaporator 33 flows along substantially the entire upper, lower, left and right surfaces of the upper and lower heat conducting boxes 21, 22. Therefore, the air in the upper and lower storage chambers 31, 32 is cooled by the upper, lower, left and right wall surfaces of the upper and lower heat conducting boxes 21, 22.

In the upper and lower storage chambers 31 and 32, dishes cooked in the kitchen are stored through the front opening 7 with the door 44 opened. A certain number of dishes are prepared in this upper and lower storage room 31,
After being temporarily stored in 32, the waiter opens the door 46 after receiving an order or in accordance with the progress of a banquet or the like, and the food is taken out from the opening 8 on the rear surface to be provided to the customer. Further, since the taken-out food can be replenished from the opening 7 on the opposite side, the food can be stored / provided / supplemented very smoothly.

At this time, since there is no direct inflow of cold air into the upper and lower storage chambers 31 and 32 and the air is indirectly cooled from the upper, lower, left and right wall surfaces as described above, the upper and lower storage chambers 31, 32 are housed. The dishes are stored cold without drying. Therefore, the dish can be stored in a delicious state without being wrapped in wrap or the like.

On the other hand, although frost is grown on the evaporator 33 by the cooling operation, the frost is melted by being periodically heated, for example, by a defrosting heater (not shown). The drainage of the defrosting water or the like dropped from the evaporator 33 by such defrosting is once received by the dew tray 71, then flows into the drainage pipe 72, and exits from the overhanging portion 9. Then, it flows down in the vertical partition member 13 to reach the lower side of the heat insulating box 6, and is discharged to the outside through the trap portion 73.

As described above, the defrosting water from the evaporator 33 provided in the upper part of the heat insulating box 6 is discharged to the outside of the heat insulating box 6 by the drain pipe 72. At this time, the drain pipe 72 is Since it is inserted through the vertical partition member 13, there is no need to pass through the side wall of the heat insulating box 6 or the outer surface of the side wall as in the conventional case. Therefore, there is no risk of impairing the appearance of the heat insulating box 6, the structure of the heat insulating box 6 is simplified, and the upper and lower storage chambers 31, 32 are formed by increasing the thickness of the side wall of the heat insulating box 6.
No reduction in the internal storage volume occurs.

Further, an air layer G is formed between the drain pipe 72 passing through the inside of the vertical partition member 13 and the pipe body 58 to form a heat insulating space, and a heat insulating material is provided around the pipe body 58. Since 56 and 57 are provided, the drainage flowing down through the drainage pipe 72 is the upper and lower storage chambers 31 and 32, or the cold air passage 3.
Good insulation from the cold air inside 9. Therefore, the drain pipe 72
The re-freezing of the wastewater inside is also prevented.

Further, since the vertical partition member 13 can be removed from the heat insulating box 6, the repair work can be easily performed even if the drain pipe 72 is clogged with dust. At this time, the drain pipe 72 is inserted into the pipe body 58, and the pipe body 58 is covered with the heat insulating material 5.
The breaker 62, 62, the front and rear plates 59, 61, and the pipe body 58 are separated by the screw 63, and the main body 13A of the vertical partition member 13 is easily disassembled. 72 insertion and vertical partition member 1
The disassembling and assembling of 3 are facilitated, and thereby the repair work is further facilitated.

In the embodiment, since the projecting portion 9 is formed on the ceiling wall 6A of the heat insulating box body 6 and the cooling chamber 11 in which the evaporator 33 is disposed is constructed in the projecting portion 9, the upper and lower storage chambers are formed. The evaporator 33 and the blower 34 could be arranged without reducing the volumes of 31 and 32. Further, although the present invention is applied to the so-called indirect cooling type low temperature storage in the embodiment, the present invention is not limited to this, and the present invention is also effective for a system in which cool air from the evaporator is directly discharged into the storage chamber. Further, in the embodiment, the low temperature storage having the upper and lower storage chambers has been described, but not limited thereto,
A cold storage with only one room is acceptable.

[0031]

As described above in detail, according to the invention of claim 1, the inside of the heat insulating box is opened in the front-rear direction by opening the door, so that articles can be stored from one side and taken out from the other side. Therefore, it becomes possible to smoothly provide and replenish these items such as foods while keeping them at low temperature in the heat insulating box.

Drainage water such as defrosting water from the evaporator is received by the dew tray and discharged through the drain pipe to the outside of the heat insulating box. The drain pipe is from the top wall to the bottom wall of the heat insulating box. Since it is led out to the lower side of the heat insulation box through the vertical partition member installed over the structure, it is not necessary to form a groove for passing the drain pipe up and down in the heat insulation box as in the past, and the structure is simplified. As a result, the reduction of the accommodation volume in the heat insulating box is eliminated, and the appearance problem is also eliminated. Further, when the drainage pipe is clogged with dust or the like, the drainage pipe can be easily repaired by removing the vertical partition member.

In particular, according to the invention of claim 2, since the vertical partition member is composed of a pair of heat insulating materials and a pipe body sandwiched between them, the drain pipe is inserted into the pipe body. The insertion of the drainage pipe and the assembling / disassembling of the vertical partition member become easy, and the assembling workability and the repairing workability are further improved. Furthermore, since an air layer is formed between the drain pipe and the pipe body, the drain pipe will be insulated from the outside by both the heat insulating material and the air layer, and the re-freezing of drainage inside the drain pipe can be reliably prevented. It is what is done.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of a cold storage of the present invention.

FIG. 2 is a vertical sectional front view of the low temperature storage of the present invention.

FIG. 3 is a rear perspective view of the cold storage of the present invention.

FIG. 4 is a front perspective view of the cold storage of the present invention.

FIG. 5 is a vertical sectional front view of a heat insulating box body and a vertical partition member of the low temperature storage according to the present invention.

FIG. 6 is a perspective view of a main body of a vertical partition member.

FIG. 7 is an exploded perspective view of the main body of the vertical partition member.

FIG. 8 is an exploded perspective view of a vertical partition member.

FIG. 9 is a rear perspective view of a heat insulating box of a conventional cold storage.

FIG. 10 is a perspective view of another conventional heat insulating box of a cold storage.

FIG. 11 is a vertical sectional front view of still another conventional cold storage.

[Explanation of symbols]

 1 Low-temperature storage 6 Insulation box 7 Open 8 Open 13 Vertical partition member 31 Upper storage room 32 Lower storage room 33 Evaporator 34 Blower 39 Cold air passage 44 Door 46 Door 56 Insulation material 57 Insulation material 58 Tube body 71 Dew tray 72 Drain pipe G air layer

Claims (2)

[Claims] 1. A heat-insulating box body having openings in front and rear surfaces, and doors which respectively open and close the front and rear openings of the heat-insulating box body,
An evaporator of a cooling device arranged in the upper part of the heat insulating box,
A dew tray arranged under the evaporator, a drainage pipe for discharging the wastewater received in the dew tray out of the heat insulating box, and a ceiling of the heat insulating box at the opening of the heat insulating box. A low temperature storage comprising a vertical partition member attached from a wall to a bottom wall, wherein the drainage pipe is led out to a lower part of the heat insulating box through the vertical partition member. 2. The vertical partition member is composed of a pair of heat insulating materials and a pipe body sandwiched between the heat insulating materials, and a drain pipe is inserted into the pipe body, and the drain pipe and the pipe body are provided with each other. The cold storage according to claim 1, wherein an air layer is formed.