JPH1047830A - Low temperature storage shed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To substantially uniformly cool the entire part of a main body by providing a cold air outlet port in a small thing storage shelf on the upper part of the main body of a low temperature storage shed and providing on both the side surface parts of the main body removable vent ducts made of a porous material which extend from the cold air outlet port to a wooden duckboard on the bottom part of the main body. SOLUTION: When a door part 6 of a low temperature storage 2 is closed, a switch NO of a cooling unit 8 is turned on, and a temperature adjuster 18 is set to, for example, 12 deg.C, cold air is supplied to a main body part 4 from a cold air outlet port 12 of the cooling unit 8. A circulating path of cold air is maintained in which the supplied cold air cools drinks or fruits such as juice or beer which can be stored in a mixed state on a small thing storage shelf 26, passes through a first vent duct 28-1 provided on one side surface part of the main body part 4, reaches and passes through a wooden duckboard 24, flows to the other side surface of the main body part 4 and returns to the small thing storage shelf 26 through a second vent duct 28-2.

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, and in particular, cool air blown into a main body from a cool air outlet of a cooling unit during operation of the low-temperature storage while cooling the inside of the accessory storage shelf and disposing the cool air in the main body. The present invention relates to a low-temperature storage that circulates through a main body through a plurality of ventilation ducts and can cool the whole of the low-temperature storage substantially uniformly.

[0002]

2. Description of the Related Art As a conventional low-temperature storage, there is a low-temperature storage in which a main body is formed in a box shape with a heat insulating material, and a cooling unit is disposed on an upper surface of the main body. The cooling unit is provided with a dial-type temperature controller for adjusting the temperature in the low-temperature storage, and the user sets the temperature in the low-temperature storage based on experience.

[0003]

However, in the conventional low-temperature storage, no component has been developed for securing a gap for a circulation path of cool air between the main body and the storage object.

[0004] For this reason, when storing an object to be stored in the main body of the low-temperature storage, it is necessary to stack the stored object in order to secure a gap between the main body and the object to be stored, which is disadvantageous in practical use. There is a disadvantage that there is.

[0005] In addition, when the storage object collapses in the low-temperature storage, or when the storage object is stored in a predetermined amount or more, the storage object comes into contact with the main body and the cold air is generated. The gap for the circulation path is cut off, and the cooling air is hardly circulated, and the cooling efficiency is reduced.

In order to solve this inconvenience, for example, FIG.
As shown in the figure, two first and second door portions 144 with double doors are used.
, Low temperature storage 1 with two doors having 144-2
In FIG. 42, as shown in FIG. 7, there is a method in which a user devises by himself and a plurality of rod-shaped members 162 such as logs and bamboos are interposed at left and right side portions of the low-temperature storage 142 to secure a circulation path of cool air. May be taken.

However, since the rod-shaped member 162 itself such as a log or bamboo does not have a ventilation function, when the stored object collapses or when a predetermined amount or more of the stored object is stored, the storage object is not stored. If an object covers a rod-shaped member such as a log or bamboo, there is a risk that the gap for the circulation path of the cool air may be blocked, causing the inconvenience that the cool air is difficult to circulate and the cooling efficiency is reduced, resulting in an improvement. It was coming.

[0008]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned inconveniences, the present invention has a door portion at a front portion and accommodates an object to be stored in a main body formed in a box shape. In the low-temperature storage for storing the low-temperature storage, a cooling unit of the low-temperature storage is provided with an operation panel, and the operation panel has an operation switch and a humidity changeover switch that switches the humidity between a high humidity state and a low humidity state. A temperature controller for manually adjusting the temperature is provided, a moving caster is provided at the bottom of the main body of the low-temperature storage, and an adjuster for adjusting the height is provided at the bottom of the main body and at the left and right front surfaces of the low-temperature storage, A wooden mushroom is provided at the bottom in the main body, a small storage shelf is provided at an upper part in the main body, and a cool air outlet is provided in the small storage shelf; Characterized in that a removable ventilation duct which is formed of a porous material extending from the cold air outlet to said wooden slatted at least right and left side portions of the inner.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION
During the operation of the low-temperature storage, the cool air from the cool air outlet of the cooling unit is blown into the main body, and the cool air blown from the cool air outlet cools the inside of the accessory storage shelves, and the plurality of cool air is arranged in the main body. It circulates through the main body through the ventilation duct, and cools the whole inside of the main body of the low-temperature storage substantially uniformly.

[0010]

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

1 to 3 show a first embodiment of the present invention. In FIGS. 1 to 3, reference numeral 2 denotes a low-temperature storage.

As shown in FIGS. 1 to 3, the low-temperature storage 2 has a small and box-shaped main body 4 having an internal volume of about 450 liters and a front part of the main body 4. It includes a door unit 6, a cooling unit 8 mounted on the upper surface 4a of the main body unit 4, and an operation panel 10 provided at a front portion of the main body unit 4, for example, the cooling unit 8. In other words, the low-temperature storage 2 is an integral injection foaming method of urethane,
It is formed by non-coking except for the bottom corners, and is formed as a one-box, one-door type while improving sealing, heat insulation, strength, etc., while forming the outer surface with painted steel plate and the inner surface It is made of galvanized steel sheet or galvalume steel sheet.

The left and right corners of the door portion 6 are formed in a round shape.

As shown in FIG. 1, the direction of the cool air outlet 12 of the cool air outlet 12 of the cooling unit 8 is provided to be directed to one of the side surfaces of the low-temperature storage 2, for example, the left side surface in FIG. . The cool air outlet 12 is provided in an accessory storage shelf 26 described later.

An operation switch 14 is provided on the operation panel 10.
A humidity switch 16 for switching the humidity between a high humidity state and a low humidity state; and a temperature controller 18 for manually controlling the temperature during operation, and a bottom 4b of the main body 4 of the low-temperature storage 2. A moving caster 20 is provided at the bottom, an adjuster 22 for adjusting the height is provided at the bottom 4b of the main body 4 and at the left and right front portions of the low-temperature storage 2 and a wooden saw 24 is provided at the inner bottom 4c of the main body 4. An accessory storage shelf 26 is provided in the upper part of the main body 4.

That is, as shown in FIGS. 1 and 2, an operation switch 14 is provided at a left portion of the operation panel 10, and a humidity changeover switch 16 is provided at a central portion.
A dial-type temperature controller 18 is provided on the right side.

The humidity changeover switch 16 sets the humidity in the low-temperature storage 2 to a high humidity state when pushed, and sets the humidity in the low-temperature storage 2 to a low humidity state when protruded. When set to the state, the circulating air humidity in the low-temperature storage 2 becomes 80 to 90% RH, and when set to the low humidity state, the circulating air humidity in the low-temperature storage 2 becomes 60 to 70% RH.

The temperature controller 18 can adjust the temperature in the low-temperature storage 2 in the range of 5 to 15 degrees.

Further, two casters 20 are provided at the left and right portions on the front side at the bottom 4b of the main body 4 of the low temperature storage 2.

The adjuster 22 is provided on the bottom 4 of the main body 4.
b and two at the left and right front portions of the low-temperature storage 2.

Further, the accessory storage shelf 26 is formed of a lattice network, and is provided at an upper central portion in the main body 4, as shown in FIG. 1, and can be used for storing beverages such as juice and beer and fruits. Space.

A removable ventilation duct 28 made of a porous material extending from the cool air outlet 12 to the wooden saw 24 is provided on at least the left and right side surfaces, for example, the left and right side portions in the main body portion 4.

More specifically, the ventilation duct 28 is formed in a tubular shape from a material having a small heat capacity and a water-permeable property, for example, urethane foam, and a plurality of first ducts is provided on the left side portion in the main body 4.
The ventilation duct 28-1 is provided, and a plurality of second ventilation ducts 28-2 are also provided on the right side surface inside the main body 4, to secure a circulation path for cool air.

Reference numeral 30 denotes a thermometer disposed on the front surface of the door portion 6, reference numeral 32 denotes a temperature sensing portion disposed on the rear surface of the door portion 6, and 34.
Is a handle provided on the door portion 6, 36 is a drain hose, and 38 is a brown rice bag in which brown rice is put into a paper bag to make about 30 kg.

Next, the operation will be described.

The low-temperature storage 2 has a maximum of 200K inside.
Place horizontally to hold g of storage.

As shown in FIG. 1, a maximum of six brown rice bags 38 of about 30 kg are stacked in the main body 4 of the low temperature storage 2, the door 6 is closed, and the operation panel 10 of the cooling unit 8 is closed. The operation switch 14 is turned on, and the dial type temperature controller 18 is set to 12 degrees.

Then, the cool air from the cool air outlet 12 of the cooling unit 8 is blown into the main body 4.

At this time, the cool air blown from the cool air outlet 12 is mixed with the juice that can be stored in the accessory storage shelf 26,
While cooling beverages such as beer and fruits, a plurality of first ventilation ducts 28-1 arranged on the left side portion in the main body 4
To the wooden snowboard 24, this wooden snowboard 24
And flows to the right side in the main body 4, and a plurality of second ventilation ducts 28-disposed in the right side of the main body 4.
A circulation path of the cool air returning to the accessory storage shelf 26 via the second storage 2 is secured.

At this time, the temperature inside the main body portion 4 reaches the set temperature in about 40 to 60 minutes, and the central portion of the brown rice bag 34 gradually approaches the set temperature as time passes. The central portion of the bag 34 also has the set temperature.

When the brown rice bag 38 is collapsed when a maximum of six brown rice bags 38 of about 30 kg are stored and stored in the main body 4 of the low temperature storage 2, Even when the brown rice bag 38 is stored, the first and second ventilation ducts 28-1 and 28-2 disposed on the left and right side portions in the main body portion 4 maintain the circulation path of the cool air, and there is no problem. There is no.

In the case of brown rice, the humidity switch 16 is set to a low humidity state. At the same time as the compressor (not shown) stops, the fan (not shown) of the evaporator (not shown) also stops, and the humidity change switch 16 adheres to the evaporator. The dew water flows down fins (not shown) and is discharged to the outside.

Then, the circulating air humidity in the main body 4 of the low-temperature storage 2 becomes about 60%, and the equilibrium water content at that time becomes about 14%, thereby preventing brown rice from deteriorating.

When the humidity changeover switch 16 is set to a high humidity state, the fan of the evaporator is operated regardless of the stoppage of the operation of the reciprocating type compressor, and the dew condensation water adhering to the evaporator is removed at the wind speed by the low-temperature storage 2. And the circulating air humidity is about 80%. Therefore, it is most suitable for storage of agricultural products and the like whose drying is to be prevented during storage.

Further, the periphery of the door portion 6 is sealed with a door rubber with magnet (not shown), but the insulation is weak and dew condensation occurs on the joint surface. Heated by a heater (not shown) embedded in the side,
Eliminates temperature differences with respect to the outside air temperature to prevent condensation.

Thus, the main body 4 of the low-temperature storage 2
The first and second ventilation ducts 28-1 and 28-2
8-2 can secure a cooling air circulation path,
The whole inside of the main body 4 of the low-temperature storage 2 can be cooled substantially uniformly,
It is practically advantageous.

Further, since the ventilation duct 28 is formed of a porous material, even if a part of the outer periphery of the ventilation duct 28 is closed, cold air can be circulated from other parts, and stable cold air lubrication efficiency can be obtained. Can be maintained, and usability can be improved.

Further, when the brown rice bag 38 is collapsed when a maximum of six paper brown rice bags 38 of about 30 kg are stored and stored in the main body 4 of the low temperature storage 2, Even when the brown rice bag 38 is stored, the first and second ventilation ducts 28-1 and 28-2 disposed on the left and right side portions in the main body 4 can maintain the circulation path of the cool air, The cool air can be reliably circulated, and the quality can be maintained in a good state by storing the material to be stored at a low temperature.

Furthermore, the ventilation duct 28 is formed of a material having a small heat capacity and a water permeability, for example, urethane foam, so that when the door 6 is opened, the outside air is in the main body 4 of the low-temperature storage 2. When an instantaneous condensation occurs due to a temperature difference caused by flowing into the air, the ventilation duct 28 having a small heat capacity instantaneously eliminates the temperature difference and makes it difficult for dew condensation to occur. And the deterioration of the stored material can be reliably prevented.

Further, since the structure of the ventilation duct 28 is simple, it is easy to manufacture, the cost can be kept low, and it is economically advantageous.

FIGS. 4 and 5 show a second embodiment of the present invention. In the second embodiment, portions that perform the same functions as those in the first embodiment will be described with the same reference numerals.

The second embodiment is characterized in that the low-temperature storage 42 is provided with two double doors, the first and second door portions 4.
4-1 and 44-2.

That is, as shown in FIG. 4 and FIG. 5, two first and second double doors are provided in the main body 46 of the low temperature storage 42.
In addition to providing the door parts 44-1 and 44-2, the low-temperature storage 42 is large enough to store 18 brown rice bags 48 of about 30 Kg by putting brown rice in a paper bag.

Then, the ventilation duct 50 is formed in a tubular shape with a material having a small heat capacity and water permeability, for example, urethane foam, and as shown in FIGS. The first ventilation duct 50-1 is provided, and two second ventilation ducts 50-2 are also provided on the right side portion in the main body 46 to secure a circulation path for cool air in the main body 46. I do.

Then, the main body 4 of the low-temperature storage 42 is
6, first and second ventilation ducts 50-1,
The circulation path of the cool air can be ensured by 50-2, and the whole inside of the main body of the low-temperature storage can be cooled substantially uniformly as in the first embodiment, which is practically advantageous.

Further, since the ventilation duct 50 is formed of a porous material, even if a part of the outer periphery of the ventilation duct 50 is closed, it is possible to circulate cool air from other parts. Similarly to the above, stable cooling air circulation efficiency can be maintained, and usability can be improved.

Further, when the brown rice bags 48 are collapsed when a maximum of 18 paper brown rice bags 48 of about 30 kg are stored and stored in the main body 46 of the low temperature storage 42, Even when the brown rice bag 48 described above is stored, the first and the second
Since the circulation path of the cool air can be maintained by the ventilation ducts 50-1 and 50-2, the cool air can be reliably circulated as in the case of the above-described first embodiment, and the storage target can be stored at a low temperature. Quality can be maintained in good condition.

Further, by forming the ventilation duct 50 from a material having a small heat capacity and having water permeability, for example, urethane foam, the first and second door portions 44-1 and 44-1 are formed.
-2 is opened, the outside air flows into the main body 4 of the low-temperature storage 42.
6, when a temperature difference occurs and instantaneous dew condensation occurs, the ventilation duct 50 having a small heat capacity instantaneously eliminates the temperature difference and makes it difficult for dew condensation to occur. Moisture transfer can be eliminated, and deterioration of the stored material can be reliably prevented.

Further, since the structure of the ventilation duct 50 is simple, as in the case of the first embodiment, it is easy to manufacture, the cost can be kept low, and it is economically advantageous. .

The present invention is not limited to the above-described first and second embodiments, but can be applied to various modifications.

For example, in the first and second embodiments of the present invention, the ventilation ducts extending from the cool air outlet to the wooden slats are provided on the left and right side portions in the main body. It is also possible to provide a configuration in which a duct is provided to secure a circulation path for cool air.

Further, in the first and second embodiments of the present invention, when the ventilation duct is formed, the ventilation duct is formed in a tubular shape with urethane foam. However, the ventilation duct may be formed in a flat plate shape having a circulation path therein. is there.

[0053]

As described above in detail, according to the present invention, a storage object is accommodated in a box-shaped main body having a door portion at a front portion, and the storage object is cooled by a cooling unit. In the low-temperature storage to be stored, an operation panel is provided on a cooling unit of the low-temperature storage, and an operation switch and a humidity changeover switch for switching the humidity between a high humidity state and a low humidity state are provided on the operation panel. A temperature controller to perform, and a moving caster at the bottom of the main body of the low-temperature storage,
Adjusters for height adjustment are provided at the bottom of the main body and at the front left and right parts of the low-temperature storage, wooden wooden saws are provided at the bottom of the main body, and accessory storage shelves are provided at the top of the main body, and inside the accessory storage shelves. A cold air outlet is provided, and a detachable ventilation duct formed of a porous material extending from the cold air outlet to a wooden mushroom is provided on at least the left and right side portions in the main body portion, so that at least the left and right side portions in the main body portion of the low-temperature storage are provided. The ventilation duct can secure a circulation path of cool air, and the entire inside of the main body of the low-temperature storage can be cooled substantially uniformly, which is practically advantageous. Further, by forming the ventilation duct from a porous material, even if a part of the outer periphery of the ventilation duct is closed, it is possible to circulate cool air from other parts, and to maintain stable cool air lubrication efficiency. , The usability can be improved. Furthermore, if the storage object collapses during storage while storing the storage object in the main body portion of the low-temperature storage, or even if the storage object stores a predetermined amount or more, at least the inside of the main body portion Since the circulation path of the cool air can be maintained by the ventilation ducts disposed on the left and right side portions, the cool air can be reliably circulated, and the storage object can be stored at a low temperature and the quality can be maintained in a good state. Furthermore, if the ventilation duct is formed of a material having a small heat capacity and water permeability, when the door is opened, the outside air flows into the main body of the low-temperature storage to generate a temperature difference, and instantaneous dew condensation occurs. In the case where airflow occurs, the ventilation duct having a small heat capacity instantaneously eliminates the temperature difference and makes it difficult for dew condensation to occur, and also eliminates the exchange of moisture with the storage object due to the water permeability, thereby reliably preventing the deterioration of the storage object. . In addition, since the structure of the ventilation duct is simple, the production is easy, the cost can be kept low, and it is economically advantageous.

[Brief description of the drawings]

FIG. 1 is a front view of a low-temperature storage according to a first embodiment of the present invention, with a door portion opened.

FIG. 2 is a front view of a low-temperature storage.

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

FIG. 4 is a front view of a low-temperature storage according to a second embodiment of the present invention, with a door portion opened.

FIG. 5 is a plan view of the low-temperature storage with the top removed.

FIG. 6 is a front view of the low-temperature storage according to the prior art of the present invention in a state where a door portion is opened.

FIG. 7 is a plan view of the low-temperature storage with the top removed.

[Explanation of symbols]

 2 Low temperature storage 4 Main body 4a Top 4b Bottom 4c Inner bottom 6 Door 8 Cooling unit 10 Operation panel 12 Cold air outlet 14 Operation switch 16 Humidity change switch 18 Temperature controller 20 Transfer caster 22 Adjuster 24 Wooden snowboard 26 Small storage shelf 28 ventilation duct 28-1 first ventilation duct 28-2 second ventilation duct 30 thermometer 32 temperature sensing part 34 handle 36 drain hose 38 brown rice bag

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[Procedure amendment]

[Submission date] October 22, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 5

FIG. 6

FIG. 4

FIG. 7

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location F25D 29/00 F25D 29/00 Z // A23B 9/00 9282-4B A23B 9/00

Claims (2)

[Claims] 1. A low-temperature storage having a door portion at a front portion thereof and storing an object to be stored in a box-shaped main body and storing the object to be stored in a low-temperature state by a cooling unit. An operation panel, an operation switch, an operation switch, a humidity changeover switch for switching humidity between one of a high humidity state and a low humidity state, and a temperature controller for manually performing temperature adjustment during operation, and A moving caster is provided at the bottom of the main body, and adjusters for adjusting the height are provided at the bottom of the main body and at the front left and right portions of the low-temperature storage, and a wooden mushroom is provided at the bottom of the main body. And a cool air outlet provided in the accessory storage shelf, and at least the left and right side portions in the main body portion are provided with a cool air outlet through the cold air outlet. A low-temperature storage, characterized by having a detachable ventilation duct formed of a porous material extending to a mushroom. 2. The low-temperature storage according to claim 1, wherein the ventilation duct is a ventilation duct formed of a material having a small heat capacity and water permeability.