JPH07159023A - Cold insulation box - Google Patents

Abstract

PURPOSE:To improve a cooling efficiency of a cold insulation space by providing cold dissipating fins brought at one ends into contact with a cooler and disposed at the other on a containing box opening at the time of containing. CONSTITUTION:A thermoelectric converter 13 is disposed in a cold insulation space 19 of a sealed state, heat dissipating fins 15 are so connected to a heat dissipating surface of the converter 13 as to transfer heat, and a heat transfer block 14 is so connected to a cooling surface as to transfer heat. Cold dissipating fins 27 are brought at one ends into contact with the block 14 and disposed at the other on an opening of a containing case 22 at the time of containing. Thus, since cold gas in which cold is dissipated in a cooler directly flows into the case 22, a matter to be cooled can be immediately cooled to improve a cooling efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cool box provided on a vanity or the like.

[0002]

2. Description of the Related Art As a conventional technique of this kind, Japanese Patent Laid-Open No.
The one disclosed in Japanese Patent No. 140578 is known. This cools the inside of the cold insulation space by the cooling action of the thermoelectric conversion element having the cooling part that exhibits a cooling action by energization and the heat dissipation part that exhibits a heat dissipation action, and cools the heat dissipation surface side of the thermoelectric conversion device by the cooling fan. Is something
The door of the cool box was opened and closed by a hinge. However, this openable and closable door is opened and closed by a hinge. For example, when the hinge is arranged outside the cabinet frame, the hinge part protrudes, and if it is arranged adjacent to another cabinet, the hinge part becomes a gap, resulting in poor appearance, and The cabinets cannot be placed close together. Further, when the hinge is arranged inside the cabinet frame, since the hinge is arranged within a limited space, the inside of the cool box is narrowed by the protrusion of the hinge.

For example, Japanese Patent Application No. 5-176825 solves the above-mentioned problems of the prior art. This is a thermal insulation space formed by a box-shaped heat insulation wall having an opening at the front and an insulation door having an opening at the opening, and the cooling section is brought into thermal contact with the cold insulation space, and the heat dissipation section is thermally exposed to the atmosphere. The thermoelectric conversion element is in contact with the storage case and is housed in the cold storage space and integrally provided with the heat insulating door.

[0004]

In the above-mentioned means, since the storage box to be stored in the cold storage space is supported in a floating state in the hollow space of the cold storage space, the air around the storage box is cooled. It is not possible to cool the inside of the storage box because cold air does not enter until later. Therefore, it takes time until the cooling object is cooled. It is also conceivable to form the storage box so that there is no gap in the cold storage space, but it is difficult to form such a storage box because there is an impact when the storage box is stored.

An object of the present invention is to improve the cooling efficiency of the cold storage space.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, the means taken in the invention of claim 1 is such that one end is in contact with the cooling part and the other end is on the storage box opening at the time of storage. It had a cooling fin located.

In order to solve the above-mentioned problems, the means taken in the invention of claim 2 is a guide wall which is arranged on the box-shaped heat insulating wall and guides the cool air discharged from the cooling section onto the storage box opening. In order to solve the above problems, the means taken in the invention of claim 3 is a cooling fin, one end of which is in contact with the cooling part and the other end of which is located on the opening of the storage box during storage. And a guide wall that is arranged below the cooling fins and that guides the cool air discharged from the cooling unit onto the opening of the storage box.

[0008]

According to the means of claim 1, since the heat radiation fins are located on the opening of the storage box, the cool air released in the cooling section directly flows into the storage box, so that the object to be cooled is immediately cooled. It is possible to improve the cooling efficiency.

According to the second aspect of the invention, since the guide wall is arranged so as to guide the cool air over the opening of the storage box, the cool air does not fall around the storage box, so that the cooling is immediately performed. The object can be cooled, and the cooling efficiency can be improved.

According to the means of claim 3, the radiation fin is located on the opening of the storage box, and the guide wall for guiding the cool air discharged by the radiation fin to the opening of the storage box. As a result, the cooling object stored in the storage box can be immediately cooled, so that the cooling efficiency can be improved.

[0011]

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

As shown in FIG. 1, the cool box 10 has a box-shaped heat insulating wall 11 having an opening at the front, a heat insulating door 12 for opening and closing the opening, and a cooling surface of the thermoelectric conversion element 13. The heat transfer block 14, the heat radiation fins 15 arranged on the heat radiation surface of the thermoelectric conversion element 13, the wooden frame 16 arranged around the heat insulating wall 11 and the heat insulating door 12, and the heat radiation fins 15. It is composed of a blower fan 17 for blowing cooling air.
Further, the width obtained by subtracting the heat insulation wall 11 and the wooden frame body 16 from the entire width of the cabinet frame body 18, the heat insulation wall 11 and the wooden frame body 1
A cold storage space 19 is formed by the top and bottom and the depth divided by 6.

The heat insulating door 12 is composed of a heat insulating wall 20 and a wooden frame 21, and a storage case (storage box) 22 is fixed to the heat insulating wall 20. A guide rail 23 is fixed below the wooden frame 21 for sliding in the cold storage space 19. A packing 24 is provided around the heat insulating door 12 to seal the cold storage space 19 inside.

A thermoelectric conversion element 13 is arranged in the cold storage space 19 as shown in the figure.

A radiating fin 15 is thermally connected to the radiating surface of the thermoelectric conversion element 13, and a heat transfer block 14 is thermally connected to the cooling surface. A heat insulating material 25 is arranged around the thermoelectric conversion element 13.
Further, the heat radiation fin 15 is arranged so as to face the heat radiation fin 15.
A blower fan 17 for cooling 5 is arranged. The cooling surface has a heat absorbing surface 26 that exchanges heat with the air in the cold storage space 19.
Are arranged on the heat insulating wall 11.

The cooling fin 27, which is a feature of the present invention, will be described. One end surface of the cooling fin 27 is fixed to the heat transfer block 14 with a screw 28, and the tip of the fin 27 is positioned above the opening of the storage case 22. A stopper 29 is arranged to regulate the movement of the cooling material so that the tips of the fins 27 do not come into contact with the cooling material.

The fins 27 may be formed integrally with the heat transfer block 14. (For example, made of Al die casting).

Next, the operation of this embodiment will be described.

When the power is turned on by an operation switch (not shown), the thermoelectric conversion element 13 is energized, and the cooling surface of the thermoelectric conversion element 13 starts cooling in response to this, and the cooling fins are released through the heat transfer block 14. The heat absorbing surface 26 and the heat absorbing surface 26 exchange heat with the air in the cold insulating space 19. Since the cooling fins 27 and the heat absorbing surface 26 further exchange heat with the air in the cold insulating space 29, the air in the cold insulating space 19 is cooled. The cool air thus cooled by the cooling fins 27 directly flows into the storage case 22 located below the tips of the fins 27. As a result, the cold-storing space 19 can be effectively cooled, and as a result, for example, cosmetics such as lotion or emulsion which can be stored at low temperature can be placed in the storage case 19.

Further, as shown in FIG. 2, the cooling effect can be improved by using the guide wall 30 instead of the cooling fin 27 described above. This is a storage case 22
The cold air is guided so that the cold air flows into the inside. The guide wall 30 has one end fixed to the heat insulating wall 11 and the other end located inside the storage case 22. When the heat absorbing surface 26 starts heat exchange, the air in the cold insulating space 19 is cooled, and the cooled air flows downward. The cold air that has flowed downward is caused to flow directly into the storage case 22 by the guide wall 30. As a result, it is possible to prevent cold air from flowing around the storage case 22, and it is possible to immediately cool the object to be cooled in the storage case 22.

Further, as shown in FIG. 3, by using the cooling fin 27 and the guide wall 22 in combination, the cooling efficiency can be further improved. The cooling fins 27 are arranged as described above, and the guide wall 22 is arranged below the cooling fins 27.

When the power is turned on by an operation switch section (not shown), the thermoelectric conversion element 13 is energized, and the cooling surface of the thermoelectric conversion element 13 starts cooling in response to this. As a result, the heat absorbing surface 26 and the cooling fins 27 are cooled by starting heat exchange with the air in the cold insulating space 19. The cool air discharged from the cooling fins 27 is stored in the storage case 22 from the tips of the fins 27.
The cool air which directly flows into the opening of the fin 27 and flows downward from the middle of the fin 27 is also guided by the guide wall 30.
Flows in. Thereby, the cooling object stored in the storage case 22 is efficiently cooled, and the cooling efficiency can be improved.

[0023]

According to the first aspect of the present invention, since the heat radiation fins are located on the opening of the storage box, the cool air discharged in the cooling section directly flows into the storage box, so that the cooling object is immediately removed. It can be cooled and the cooling efficiency can be improved.

According to the second aspect of the present invention, since the guide wall is arranged so as to guide the cool air above the opening of the storage box, the cool air does not fall around the storage box, so that the cooling is immediately performed. The object can be cooled, and the cooling efficiency can be improved.

According to the third aspect of the present invention, the radiation fin is located on the opening of the storage box, and the guide wall is provided to guide the cool air discharged by the radiation fin to the opening of the storage box. As a result, the cooling object stored in the storage box can be immediately cooled, so that the cooling efficiency can be improved.

[Brief description of drawings]

FIG. 1 shows a cross-sectional view of a cool air control structure of a cool box according to the present embodiment, in which cooling fins are provided.

FIG. 2 shows a cross-sectional view of a cool air control structure for a cool box according to the present embodiment, in which a guide wall is provided.

FIG. 3 is a cross-sectional view of a cool air control structure for a cool box according to the present embodiment, in which heat radiation fins and guide walls are provided.

[Explanation of symbols]

 10 ... Cooling box 11 ... Insulation wall 12 ... Insulation door 13 ... Thermoelectric conversion element 15 ... Radiating fin 22 ... Storage case (storage box) 27 ... Cooling fin 30 ... ..Information walls

Claims (3)

[Claims] 1. A box-shaped heat insulating wall having a front surface as an opening, a heat insulating door for opening and closing the opening, a heat insulating space formed by the box heat insulating wall and the heat insulating door, the heat insulating space and cooling. In a cool box having a thermoelectric conversion element in which a part is in thermal contact and an atmosphere and a heat radiating part are in thermal contact, and a storage box that is housed in the heat insulating space and has an opening at the upper side, in the cooling part. A cooling structure for a cool box, comprising: a cooling fin, one end of which abuts, the other end of which is positioned above the opening of the storage box when the storage is performed. 2. A box-shaped heat insulating wall having a front opening, a heat insulating door that opens and closes the opening, a heat insulating space formed by the box heat insulating wall and the heat insulating door, and cooling in the heat insulating space. In a cool box having a thermoelectric conversion element whose part is in thermal contact and the atmosphere and the heat radiating part are in thermal contact, and a storage box which is housed in the heat insulating space and has an opening at the top, the box-shaped heat insulation A cooling structure for a cool box, comprising: a guide wall disposed on a wall and for guiding the cool air discharged from the cooling unit onto the storage box opening. 3. A box-shaped heat insulating wall having a front surface as an opening, a heat insulating door for opening and closing the opening, a heat insulating space formed by the box heat insulating wall and the heat insulating door, and cooling in the heat insulating space. In a cool box having a thermoelectric conversion element in which a part is in thermal contact and an atmosphere and a heat radiating part are in thermal contact, and a storage box that is housed in the heat insulating space and has an opening at the upper side, in the cooling part. The cooling fins, one end of which is abutted and the other end of which is positioned above the opening of the storage box at the time of storage, and the cool air, which is arranged below the cooling fins and cooled by the cooling unit, is stored therein. A cooling structure for a cool box, comprising: a guide wall for guiding above the box opening.