JPH0727469A - Storing device of high humidity and low temperature - Google Patents

Abstract

PURPOSE:To provide a storing device of high humidity and low temperature in which drain water can be positively and smoothly discharged without damaging a space in the device. CONSTITUTION:Cold air is circulated by a freezer in a space formed between a thermal insulated box and a storing chamber arranged to be spaced apart within the thermal insulated box so as to indirectly cool the storing chamber. In addition, a spacer 19 formed by a high water absorptive resin absorbing moisture and expanding is placed between a flange 18a of a water discharging pipe 18 arranged at a water discharging port 16 having a stepped part while being formed at a bottom surface 5b of the storing chamber, and a stepped part 1.6a of the water discharging port 16, thereby water leakage is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-humidity and low-temperature storage for keeping the storage chamber at a high humidity and a low temperature by cooling the outer surface of a storage chamber provided inside a heat-insulating box at intervals with cold air. .

[0002]

2. Description of the Related Art As a conventional high-humidity low-temperature storage, an inner box made of a heat-conductive material is provided inside a heat-insulating box with a space between the heat-insulating box and the inner box. A refrigerating device including an evaporator and a cool air circulation fan is arranged in a space (hereinafter referred to as a cooling space), and cold air is circulated in the cooling space to cool the outer surface of the inner box to define the inside of the inner box. There is one that indirectly cools the storage room.

By the way, in such a high-humidity and low-temperature storage, water dripping from the stored food or the like, or water in the stored in-store when indirect cooling of the inner box or water invading outside air due to opening and closing of the door is caused. Dew attached to the inner surface of the inner box will collect on the bottom surface of the inner box. Therefore, conventionally, as shown in, for example, Japanese Patent Laid-Open Nos. 3-1078 and 2-272286, the bottom surface of the inner box is inclined, and water or dew ( Drain water) was discharged to the outside of the refrigerator.

[0004]

By the way, in such a conventional high humidity / low temperature storage, the drain outlet formed in the central portion of the drain outlet is closed at the upper portion as shown later. A drain pipe having a collar is fitted to drain the drain water to the outside.

It should be noted that a water seal is provided between the bottom surface of the drain outlet and the collar portion of the drain pipe so that the drain water does not leak out of the refrigerator through the gap between the drain outlet and the drain pipe. The rubber packing for is arranged.

Further, since the rubber packing alone cannot sufficiently perform the sealing, the gap between the bottom surface of the inner box and the flange portion of the drain pipe is further caulked. However, when coking is performed in this manner, there is a problem in that the caulking rises around the drain discharge port and prevents drain water from being discharged.

On the other hand, when the drain water is discharged by inclining the bottom surface of the inner box, when the inclination angle of the bottom surface is small, the drain water accumulated on the bottom surface does not completely flow to the drain discharge port,
There was a drawback that drain water could not be discharged smoothly.

Therefore, until now, the drain water was guided to the drain discharge port by increasing the inclination angle of the bottom surface. However, when the inclination angle of the bottom surface is increased in this way, There is a problem that the dead space generated between the outer box and the outer box becomes large, so that the space in the refrigerator becomes small.

An object of the present invention is to provide a high-humidity, low-temperature storage which can drain drain water reliably and smoothly without damaging the space inside the storage.

[0010]

DISCLOSURE OF THE INVENTION The present invention comprises an insulating box body,
A storage chamber provided at a distance inside the heat insulating box, a refrigeration unit for circulating cold air in a space formed between the heat insulating box and the storage chamber, and formed on the bottom of the storage chamber. And a drainage pipe having a stepped portion, a collar portion held by the stepped portion of the drainage outlet at the end, and communicating with the outside of the installed storage chamber, and a stepped portion of the drainage port And a spacer formed of a highly water-absorbent resin having a property of absorbing water and expanding, which is interposed between the flange portion of the drain pipe and the collar portion of the drain pipe.

Further, according to the present invention, a cool air is provided in a space formed between the heat insulating box, a storage chamber provided inside the heat insulating box with a space, and the heat insulating box and the storage chamber. , A drainage port formed on the bottom surface of the storage chamber, a drainage pipe inserted into the drainage port and communicating with the outside of the storage chamber, and a pipe of the drainage pipe formed on the drainage pipe. While being inserted into the upper hole that is larger than the diameter, there is a slight gap with the inner wall of the upper hole at the stepped portion at the lower end of the upper hole, and the upper end is held protruding from the drain pipe. And a cylindrical guide body to be formed.

Further, the present invention is to form the cylindrical guide body in a net shape.

[0013]

According to the present invention, the refrigerating apparatus circulates cold air in a space formed between the heat insulating box and a storage chamber provided inside the heat insulating box with a space between them to store the cold air. The chamber can be cooled indirectly. In addition, it has a property of absorbing water and expanding between the step portion of the drainage port and the collar portion of the drainage pipe which is formed at the bottom of the storage chamber and has a stepped portion and communicates with the outside of the storage chamber. Water leakage can be prevented by interposing a spacer formed of a highly water-absorbent resin.

According to the second aspect of the present invention, an upper hole portion having a diameter larger than the diameter of the drain pipe is formed in the upper portion of the drain pipe, and a cylindrical guide body is inserted into the drain pipe from above. By holding this guide plate at the stepped portion formed at the lower end of the upper hole with a slight gap between the inner wall of the upper hole and the upper end protruding from the drainage pipe, the inclination of the bottom of the storage chamber is small. It can even lead to a drain. Further, according to the invention of claim 3, by forming the guide body in a net shape, it is possible to remove dust and the like contained in the drain water guided to the drain pipe.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a high humidity / low temperature storage according to an embodiment of the present invention, and FIG. 2 is a side sectional view thereof.

In FIGS. 1 and 2, reference numeral 1 is a high humidity low temperature storage having an opening / closing door 2 in a front opening 1a. The high humidity low temperature storage 1 has a heat insulating box 3 having a heat insulating material 3a filled therein. And an upper inner box 4 and a lower inner box 5 which are open at the front surface and which are made of a heat conductive material such as stainless steel.

The upper and lower inner boxes 4, 5
Are fixedly mounted on the heat insulating box 3 in the vertical direction and on all outer wall surfaces of the heat insulating box 3 so as to form a cooling space on the outer surface of the heat insulating box 3 at intervals. And the lower storage room 5a. In addition, 6 is a shelf provided in each storage room 4a, 5a in the up-down direction.

A cooling space S above the upper inner box 4 is also provided.
1 has a cold air outlet 7a in the front part and a suction port 7a in the rear part.
A drain pan 7 having a b is arranged, a cool air circulating fan 8 is arranged inside the drain pan 7 so as to face the cool air outlet 7a, and an evaporator 9 is arranged behind the cool air circulating fan 8. Has been done. A compressor 1 that forms a refrigeration cycle together with the evaporator 9 is provided above the heat insulating box 3.
0a, a condenser 10b, a condenser cooling fan 10c, and the like are formed in the machine room 10.

Further, in the cooling spaces S2, S3 between the upper inner box 4 and the lower inner box 5 and the back wall 31 of the heat insulating box 3, a vertical partition plate 11 having a lower communication port 11a at the lower end is provided. The cooling space S is installed vertically and between the upper inner box 4 and the lower inner box 5.
4 is a horizontal partition plate 12 having a front communication port 12a at the front.
Is provided.

As a result, the cold air that has undergone heat exchange in the evaporator 9 is blown out from the cold air outlet 7a by the cold air circulation fan 8 and, as indicated by the arrows, the cooling spaces S1, S2, S.
4, the outer surfaces of the upper inner box 4 and the lower inner box 5 are cooled by passing through S3, and the upper storage chamber 4a and the lower storage chamber 5a are cooled.
After being indirectly cooled, it passes through the suction port 7b and returns to the evaporator 9.

On the other hand, an upper drain discharge port 13 having a step is formed on the bottom surface 4b inclined toward the center of the upper inner box 4. The top drain 14 is penetrated through the top plate 14 of the lower storage chamber 5a to communicate the upper storage chamber 4a and the lower storage chamber 5a with each other, while the upper drain is provided with the stepped portion of the upper drain discharge port 13 at its upper end. An upper drain pipe 15 having a flange 15a to be held is arranged.

A lower drain discharge port 16 having a step is formed on the bottom surface 5b inclined toward the center of the lower storage chamber 5a. Then, a lower drain pipe 18 penetrating through the bottom wall 3b of the heat insulating box 3 and connected to a drain hose 17 hanging on the bottom surface of the heat insulating box 3 is connected to the lower drain discharge port 16 to communicate with the outside. Is provided.

At the upper end of the lower drain pipe 18, a collar portion 18a held by the lower drain outlet 16 is provided.
Are formed. By the way, this lower drain outlet 1
Between the step portion 6 and the collar portion 18a of the lower drain pipe 18, as shown in FIG. 3, a packing 19 which is a spacer made of a highly water-absorbent resin having a property of absorbing water and expanding. Is installed.

Here, the packing 19 is formed of a highly water-absorbent resin such as starch-based, cellulose-based, or synthetic polymer-based resin, and has a fibrous, film-like or powder-like form, and drain water. When it absorbs water, it expands. The powdery material is used by being covered with paper or cloth having good water absorption so as not to be dispersed.

When the packing 19 absorbs drain water and expands, the step portion 16a of the lower drain outlet 16 is formed.
And the lower drain pipe 18 and the flange portion 18a of the lower drain pipe 18 to spread in a gap between the step portion 16a and the flange portion 18a,
This gap can be sealed. The packing 19 is also interposed between the step portion of the upper drain discharge port 13 and the flange portion of the upper drain pipe 15.

By the way, at the upper part of the upper storage chamber 4a, an upper dew receiver 20 for adhering to the top plate 14a of the upper storage chamber 4a and receiving the falling dew is inclined downward toward the back wall 4c, In addition, the rear end is disposed in contact with the back wall 4c.

In addition, an upper dew receiver 20a, which is attached to the top plate 14 of the lower storage chamber 5a and is used to receive the dew falling as it is, is inclined downward toward the back wall 5c, and is located above the lower storage chamber 5a. It is arranged with its rear end in contact with the back wall 5c.

In the high-humidity and low-temperature storage configured as described above, when dew adheres to the top plate 14a of the upper storage chamber 4a by indirect cooling, this dew drops on the upper dew tray 20 of the upper storage chamber 4a. After that, the back wall 4 of the upper storage room 4a
It flows down along c, passes through the upper drain pipe 15 arranged in the upper drain outlet 13, and drops to the upper dew receptacle 20a of the lower storage chamber 5a.

After this, the drain water containing this dew adheres to the top plate 14 of the lower storage chamber 5a and is formed at the bottom of the lower storage chamber 5a together with the dew that has dropped onto the upper dew receiver 20a of the lower storage chamber 5a. It is discharged to the outside through the lower drain pipe 18 and the drain hose 17 arranged in the drain discharge port 13.

At this time, in the upper drain discharge port 13, the upper drain discharge port 13 and the upper drain pipe 15 are provided.
The packing 19 is created by the drain water that has entered the gap between
Expands, whereby the gap between the stepped portion of the upper drain discharge port 13 and the flange portion of the upper drain pipe 15 is sealed, and drain water does not enter the cold air circulation path S4.

At the lower drain outlet 16,
The packing 19 expands due to the drain water that has entered the gap between the lower drain outlet 16 and the drain pipe 18, and the gap between the step portion 16a of the lower drain outlet 16 and the collar portion 18a of the drain pipe 18 is sealed. The drain water does not leak out of the refrigerator.

As described above, the packing 1 made of a highly water-absorbent resin which expands when drain water is absorbed between the stepped portions of the drain ports 13 and 16 and the flange portions of the drain pipes 15 and 18.
By interposing 9, it is possible to prevent water leakage without coking. By not performing the coking in this way, the drain water can be surely discharged.

By the way, in the above description, the drain water is surely discharged by using the packing formed of the super absorbent resin, but the present invention is not limited to this, and the capillary action is achieved. By utilizing the drain water, the drain water can be surely discharged even when the inclination angle of the bottom surface is small.

FIG. 4 is a side sectional view of an essential part of such a high humidity low temperature storage according to another embodiment of the present invention. In FIG. 4, the same reference numerals as those in FIG. 3 indicate the same or corresponding portions.

In the figure, 21 is a lower drain drain port 1.
6 is a lower drain pipe having an upper hole portion 21A having a diameter L1 larger than the pipe diameter L of the pipe formed in the upper portion thereof. Further, 22 is inserted into the lower drain pipe 21 from above to form a slight gap with the inner wall 21a of the upper hole portion 21A, and the upper hole portion is protruded above the lower drain pipe 21. 21A is a cylindrical guide body held by a stepped portion 21b formed in the lower portion.

By thus forming the guide body 22 with a slight gap between the guide body 22 and the inner wall 21a of the upper hole portion 21A of the lower drain pipe 21 and holding the upper end in a state of protruding upward, the lower storage The drain water collected on the bottom surface 5b of the chamber 5a is transmitted through this gap by the surface tension and the capillary phenomenon and drops into the lower drain pipe 22. Although not shown, the upper drain pipe 1
Similarly, 5 is also formed to have an inner diameter of two steps, and the guide body 22 is inserted therein.

In this embodiment, as shown in the figure, the guide body 22 is formed in a net shape to serve as a guard for removing dust and the like contained in the drain water. And
By inserting the guard 22 into the upper portion of the lower drain pipe 21, drain water can be discharged and clogging of the lower drain pipe 21 can be prevented.

In this way, the guide body 21 is connected to the drain pipe 1
By forming a slight gap with the inner wall 21a of the upper hole portion 21A of 5, 5 and holding the upper end in a state of protruding upward, the bottom surfaces 4b, 5b of the storage chambers 4a, 5a are formed.
Drain pipe 15, even if the inclination of
You can lead to 22.

[0040]

As described above, according to the first aspect of the present invention, caulking is performed by interposing a spacer made of a highly water-absorbent resin between the bottom surface of the drainage port and the flange portion of the drainage pipe. Water leakage can be prevented without performing. Thereby, drain water can be reliably discharged.

According to the second aspect of the present invention, a slight gap is formed between the drain pipe and the inner wall of the drain pipe, and the upper end is held in a state of protruding above the drain pipe.
Even if the bottom surface has a small inclination angle, the drain water can be guided to the drain pipe, and the drain water can be smoothly discharged without damaging the space in the refrigerator. Further, according to the invention of claim 3, by forming the guide body in a mesh shape, it is possible to remove dust and the like contained in the drain water and prevent clogging of the drainage pipe.

[Brief description of drawings]

FIG. 1 is a front view of a high humidity / low temperature storage according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the high humidity / low temperature storage.

FIG. 3 is a side sectional view of an essential part of the high-humidity and low-temperature storage.

FIG. 4 is a side sectional view of a main part of a high humidity low temperature storage according to another embodiment of the present invention.

[Explanation of reference numerals] 3 heat-insulating box 4a upper storage room 5a lower storage room 13,16 drain discharge port 15,18,22 drain pipe 19 packing 21 guide body

Claims (3)

[Claims] 1. Cooling air is circulated in a space formed between a heat insulating box, a storage chamber provided inside the heat insulating box with a space, and the heat insulating box and the storage chamber. A freezer, a drainage port formed on the bottom surface of the storage chamber and having a step, and a drainage communicating with the outside of the storage chamber, which has a collar portion held at the step of the drainage port at the end and is installed. A pipe, and a spacer interposed between the step portion of the drainage port and the collar portion of the drainage pipe and formed of a highly water-absorbent resin having a property of absorbing water and expanding. High humidity low temperature storage characterized by. 2. Cooling air is circulated in a space formed between the heat insulating box, the storage chamber provided inside the heat insulating box with a space, and the heat insulating box and the storage chamber. A freezing device, a drainage port formed on the bottom surface of the storage chamber, a drainage pipe inserted into the drainage port and communicating with the outside of the storage chamber, and a diameter larger than the diameter of the drainage pipe formed at the upper part of the drainage pipe. A cylinder that is inserted into a large upper hole, has a slight gap with the inner wall of the upper hole at the stepped portion at the lower end of the upper hole, and is held with the upper end protruding from the drain pipe. High-humidity low-temperature storage characterized by having a guide body. 3. The high humidity low temperature storage according to claim 2, wherein the cylindrical guide body is formed in a net shape.