JP2001027478A - Low-temperature storehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a fall in quality of stored commodities to the utmost, by providing a tubular rib, which is formed of members with low thermal conductivity, and which is installed to the sidewall inside a heat insulating box body to extend in a vertical direction. SOLUTION: This low-temperature storehouse 1 is provided with a heat insulating box body with a front opening 5, a heat insulating door 7 which freely opens and closes to block the opening of this heat insulating box body 6, and a cooling device 8 which cools down the inside of the heat insulating box body. In this case, a tubular rib 20, which is formed of members with low thermal conductivity, and which is installed to sidewalls 17, 19 and the like inside the heat insulating box body to extend in a vertical direction, is provided.

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 a rib is provided on an inner wall of a heat insulating box in order to secure a circulation path for cool air.

[0002]

2. Description of the Related Art Conventionally, as a low-temperature storage of this kind, a Japanese Utility Model 5
Japanese Patent Publication No.-8363 (F25D16 / 00) discloses that a plurality of air ribs attached to the inner wall surface of the container body store the regenerator and that a gap is provided between the air ribs so that air in the refrigerator can flow. Also, there is disclosed a cooling container in which even if a product is fully accommodated up to the inner wall surface on the back side of the container body, a certain distance is ensured between the product and the surface of the evaporating tube by the protrusion of each air rib.

[0003] Each of the air ribs is formed of a heat conductive member having a substantially U-shaped heat insulation.

[0004]

In a low-temperature storage as described in the prior art, since the cold storage agent is stored in the air ribs, there is a possibility that the air ribs that come into contact with the stored items themselves may condense and wet the stored items. Then, if the stored items are wet, the quality may be deteriorated.

[0005] The present invention has been made in view of the above-mentioned problems, and provides a low-temperature storage for the purpose of minimizing deterioration of the quality of stored articles.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a heat insulating box having a front opening, and a heat insulating door for opening and closing the opening of the heat insulating box. A low-temperature storage provided with a cooling device for cooling the heat-insulating box, a tubular rib formed of a member having low thermal conductivity, attached to a side wall in the heat-insulating box, and extending vertically. To provide a low-temperature storage provided with.

As described above, since the ribs are formed of a member having low thermal conductivity, dew condensation on the ribs that may come into contact with the stored articles can be prevented as much as possible. Furthermore, since the ribs extending in the vertical direction are cylindrical, the upper cold air passes through the ribs and is guided downward, so that the cooling air can be uniformly cooled vertically.

According to a second aspect of the present invention, there is provided a low-temperature storage according to the first aspect, wherein a drain hose of a cooling device is provided in the rib.

As described above, since the drain hose of the cooling device is provided in the rib, the dead space in the rib can be used effectively.

According to the third aspect of the present invention, the rib comprises a base fixed to the side wall of the heat-insulating box, and a spacer forming a gap between the storage article and the side wall and detachably attached to the base. A low-temperature storage according to claim 1 or claim 2 is provided.

As described above, since the spacer can be freely attached to and detached from the base portion, the cleaning property in the rib is improved, and
When the drain hose is provided in the rib, it is possible to improve the maintenance of the drain hose.

Further, in the invention according to claim 4, the rib is formed integrally with the base portion and the spacer via the hinge portion.
The low-temperature storage according to claim 3, wherein the hinge portion is mounted so as to be located in the opening direction of the heat insulating box.

As described above, the base portion and the spacer are integrally formed at the hinge portion, and the hinge portion side is located in the opening direction of the heat-insulating box, so that the mating surface of the base portion and the spacer faces in the rear direction of the heat-insulating box. It will be located.

According to a fifth aspect of the present invention, there is provided a low-temperature storage according to any one of the first to fourth aspects, wherein the rib is located at a substantially central portion of a paper rice bag stored in the heat insulating box.

As described above, since the rib is located substantially at the center of the fixed-form rice bag, it is possible to prevent the cool air passage from being blocked by the rice bag as much as possible.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a low-temperature storage provided with the present invention, FIG. 2 is a perspective view of the low-temperature storage provided with the present invention when the door is opened, FIG. 3 is a plan sectional view of the low-temperature storage, and FIG. 5, FIG. 5 is a plan view when the rib is mounted, FIG. 6 is a plan view after the rib is mounted, FIG. 7 is a perspective view when a drain hose is provided in the rib, and FIG. 8 is a drain hose in the rib. FIG. 9 is a perspective view showing a housed state, and FIG. 9 is a perspective view of a rib showing another embodiment.

FIG. 1 and FIG. 2 show a low-temperature storage 1 equipped with the present invention, for example, a low-temperature storage for brown rice, which cools brown rice at about 10 ° C., as shown in FIG. A heat insulating box 6 formed by filling and foaming the foam heat insulating material 4 and having an opening 5 at the front; A cooling device 8 provided on a top surface in the body 6 and cooling the inside of the heat insulating box 6
And a machine room 9 provided with a compressor, a condenser, etc., which constitute a refrigeration cycle together with an evaporator provided in the cooling device 8.
And a machine room panel 10 for closing the front of the machine room 9 so as to be openable and closable.

The heat-insulating door 7 is provided with a handle 7A and a keyhole 7B for locking the heat-insulating door 7, and a center pillar 7C on the open end side of one of the heat-insulating doors 7. In addition to the evaporator, the cooling device 8 is provided with a circulating fan (not shown) for circulating cool air in the refrigerator, and discharge ports 8A through which cool air is discharged by the circulating fan.
A suction port 8B for sucking air in the refrigerator is formed.

A slit-shaped suction port 11 is formed in the machine room panel 10, and a control panel 12 is exposed. In addition, 13 is a pedestal with an adjuster that supports the low-temperature storage 1, 14 is a caster that can move the low-temperature storage 1, 15 is a storage product such as a brown rice bag to form a gap with the bottom wall of the heat insulating box 6. A snowboard on which 16 and the like are placed.

Furthermore, both left and right side walls 1 in the heat insulating box 6
A plurality of air ribs 20 extending in the up-down direction are provided on the side walls 19 on the rear sides 7 and 18. This air rib 2
No. 0 is provided so as to be located at the center of the brown rice bag 16 when the brown rice bag 16 is stored. Therefore, a gap is formed between the brown rice bag 16 and each of the side walls 17, 18, 19, and the brown rice bag 16 can be cooled uniformly.

In this embodiment, a brown rice bag 16 capable of storing 30 kg of brown rice is used. This bag is made of cardboard and is 620 mm long, 400 mm wide and 170 mm high.
Is the size of The size of the brown rice bag 16 varies depending on the weight of the brown rice, but a fixed bag is used.

Then, as shown in FIG.
6 can be placed in two rows in front and back and two rows in left and right when stored so that the length direction is horizontal and the width direction is depth.

Accordingly, as shown in FIG. 3, the air ribs 20 are provided in two rows on the left and right side walls 17 and 18 and two on the rear side wall 19.
A row is provided.

Further, as shown in FIG. 2, a cold air flows between the brown rice bags 16, 16 placed on the left and right sides, so that
The air rib 20A may be provided substantially at the center of the air rib. In the air rib 20A at the center of the side wall 19,
A drain hose 21 for draining drain water from the cooling device 8 is provided.

With the above construction, the air rib 20 of the present invention
(The same configuration of the air rib 20A) will be described with reference to FIGS.

The material of the air rib 20 is a soft vinyl chloride resin, and is manufactured by extrusion molding.

The air ribs 20 are fixed to the left and right side walls 17, 18 and the back side wall 19 by fixing members 2 such as screws.
2, a base portion 23 fixed at 2, a spacer 24 forming a gap between the brown rice bag 16 and each of the side walls 17, 18, 19;
A hinge part 25 integrally connects the spacer 24 and the base part 23. The hinge portion 25 can be bent by making it thinner than other portions.

The base 23 has a hinge 2
A recess 23A provided on the fifth side and a hook 23B provided on the opposite side of the recess 23A are provided. Furthermore,
The spacer 24 has a substantially U-shaped cross-section, and is provided with a fitting portion 24A having a flask-like cross section that fits into the concave portion 23A on one of the open ends, and the hooking piece 23B on the other.
Is provided with a key-shaped portion 24B that catches on the key.

Further, in the base portion 25 of the air rib 20, there are formed three upper and lower holes 26 through which the fixture 22 is inserted. As shown in FIG. 4, the distance between the holes 26 is such that both the upper and lower holes 26 are formed in the A dimension with respect to the center hole 26.

Then, the air rib 20 is connected to each side wall 17,
When attaching to 18, 19, first, as shown in FIG.
With the base portion 23 and the spacer 24 open, the fixture 2
At 2, the base portion 25 is screwed to each of the side walls 17, 18, and 19. Next, as shown by a white arrow in FIG.
6 by hooking or fitting the fitting portion 24A and the key-shaped portion 24B of the spacer 24 to the recessed portion 23A and the hooking piece 23B.

As described above, since the air rib 20 has a cylindrical shape with the base portion 23 and the spacer 24 having a U-shaped cross section,
The cool air from the cooling device 8 provided on the top surface in the heat insulating box 6 is sent through the air rib 20 to the snowboard 15, and the brown rice bag 16 located below can be cooled well. it can.

The air ribs 2 on the left and right side walls 17, 18 are provided.
As shown in FIG. 3, the mounting direction 0 is mounted such that the hinge portion 25 is located on the opening 5 side. As described above, since the upper and lower holes 26 are formed in the A dimension with respect to the center hole 26 as described above, even if the air ribs 20 have the same configuration, if the air ribs 20 are turned upside down, the hinge portions 25 will be closer to the openings 5. It will be located in. By attaching in this way, when the heat-insulating door 7 is opened, the mating surfaces, that is, the hook pieces 23B and the key-shaped portions 24B
Since the joint surface with is located on the back side, an aesthetic appearance can be maintained.

Next, the drain hose 2 is inserted into the air rib 20A.
1 is provided, as shown in FIG. 7 and FIG.
With the 5 and the spacer 24 opened, the base part 25 is screwed to the rear side wall 19 with the fixture 22. Next, the drain hose 21 is positioned on the base portion 25, and is fitted into a drain port 27 provided on the bottom surface of the heat insulating box 6, and the base portion 23 and the spacer 24 are fitted together.

Here, the drain hose is generally provided with a groove formed on the back surface or the like outside the heat insulating box, and is disposed in the groove. In this case, the groove on the rear surface outside the heat insulating box is desired. The heat insulating material is thick enough to ensure the heat insulation performance, and the other parts are thicker than necessary to make the back surface uniform.

As in the present embodiment, since the drain hose 21 is provided on the air rib 20A in the heat insulating box 6, the heat insulating box 6
And the dead space of the air rib 20A can be effectively utilized. Further, since the drain hose 21 is held down by the air rib 20A, a fitting and the like are not required, and the drain hose 21 can be freely attached and detached by opening the spacer 24 of the air rib 20A, thereby improving the maintainability. Can be planned.

Further, the drain port 21 is connected to the drain port 2 by the drain hose 21.
7 and a trap (not shown) is provided at the drain port 27, so that it is not necessary to separately prepare a lid or the like for closing the drain port 27, and for example, the inside of the low-temperature brown rice storage 1 is washed with water. Also, drain hose 21
It is also possible to improve usability, such as by simply removing the.

Further, the air rib 20 may separate the base portion 23 and the spacer 24 as shown in FIG. In this case, the hook 23B and the fitting portion 2 having a U-shaped cross section provided on the opposite side of the hook 23 are provided on the base 23.
3C, and the spacer 24 is provided with a key-shaped portion 24B that catches on the hooking piece 23B and a fitting protrusion 24C that fits with the fitting portion 23C.

Furthermore, the stored items 16 of the low-temperature storage 1 of the present invention may be not only brown rice but also other foods such as vegetables, meat, fish and beer. When used in a minus temperature zone, the drain hose 21 needs to be provided with a heating device such as an electric temperature heater.

[0040]

As described in detail above, claim 1 of the present invention
According to the method, since the ribs are formed of a member having low thermal conductivity, dew condensation on the ribs that may come into contact with the stored articles can be prevented as much as possible. Therefore, it is possible to prevent the stored articles from getting wet and to suppress the occurrence of mold and the like. Furthermore,
Since dew condensation on the ribs can be prevented, humidity control can be easily performed.

Further, since the ribs extending in the vertical direction are cylindrical, the upper cool air passes through the ribs and is guided downward.
Cooling can be performed evenly in the vertical direction, and uneven cooling in the refrigerator can be prevented as much as possible.

According to the second aspect of the present invention, since the drain hose of the cooling device is provided in the rib, the dead space in the rib can be used effectively.

According to the third aspect of the present invention, since the spacer is made detachable from the base portion, the cleanability of the inside of the rib is improved. The maintainability can be improved.

According to the fourth aspect of the present invention, the base and the spacer are integrally formed at the hinge and the hinge is located in the direction of opening the heat-insulating box so that the mating surface of the base and the spacer is insulated. It will be located on the back side of the box. Therefore, the aesthetic appearance of the rib can be improved.

According to the fifth aspect of the present invention, since the ribs are located substantially at the center of the standard rice bag, it is possible to prevent the rice bag from closing the cool air passage as much as possible. Therefore, it is possible to prevent cooling unevenness in the refrigerator as much as possible.

[Brief description of the drawings]

FIG. 1 is a perspective view of a low-temperature storage provided with the present invention.

FIG. 2 is a perspective view of a low-temperature storage provided with the present invention when a door is opened.

FIG. 3 is a plan sectional view of a low-temperature storage.

FIG. 4 is a perspective view of a rib of the present invention.

FIG. 5 is a plan view when a rib is attached.

FIG. 6 is a plan view after a rib is attached.

FIG. 7 is a perspective view when a drain hose is provided in a rib.

FIG. 8 is a perspective view showing a state in which a drain hose is housed in a rib.

FIG. 9 is a perspective view of a rib showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low-temperature storage 5 Opening 6 Insulated box 7 Insulated door 8 Cooling device 17 Left side wall 18 Right side wall 19 Back side wall 20 Air rib

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroshi Niijima 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. F-term (reference) 3L102 JA01 LB10 LB39 LE01

Claims (5)

[Claims] 1. A low-temperature storage device comprising a heat-insulating box having a front opening, a heat-insulating door for opening and closing the opening of the heat-insulating box, and a cooling device for cooling the heat-insulating box. A low-temperature storage box characterized by being provided with a cylindrical rib that is formed of a member, is attached to a side wall in the heat insulating box, and extends in a vertical direction. 2. The low-temperature storage according to claim 1, wherein a drain hose of a cooling device is provided in the rib. 3. The rib has a base portion fixed to the side wall of the heat insulating box, and a spacer forming a gap between the storage article and the side wall and detachably attached to the base portion. The low-temperature storage according to claim 1 or 2. 4. The rib according to claim 3, wherein the rib is formed integrally with the base portion and the spacer via a hinge portion, and the hinge portion is attached so that the hinge portion is positioned in the opening direction of the heat insulating box. Cold storage. 5. The low-temperature storage according to claim 1, wherein the rib is located at a substantially central portion of a paper rice bag stored in the heat insulating box.