JPH0710896Y2 - Car cool box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an automobile cool box for cooling juice, filling, etc., and particularly to an automobile cool box detached from the automobile and portable outside the automobile.

(Prior Art) As a cool box for an automobile of this type, a configuration using an electronic refrigeration element for cooling the inside of the box is known. The electronic refrigeration element has heat absorbing parts that absorb heat when energized and heat radiating parts that emit heat alternately arranged.The heat absorbing parts are placed inside the cool box and the heat radiating parts are placed outside to cool the inside of the cool box. Has been done.

Further, in recent years, a configuration has been proposed in which a cool box installed in an automobile can be carried for use in outdoor activities such as camping.

For example, Japanese Utility Model Laid-Open No. 55-20063 discloses an independently portable automobile cool box in which the heat dissipation part of the electronic refrigeration element is arranged outside the box and the heat dissipation part is cooled by air outside the box. Japanese Utility Model Application Laid-Open No. 56-136287 discloses an automobile cool box configured so that the heat source of the electronic refrigerating element is taken from the automobile and is detachable from the automobile.

However, in these conventional techniques, since the heat radiating portion of the electronic refrigerating element is configured to be air-cooled, there is an inconvenience that heat radiation is not sufficient and the inside of the cool box cannot be sufficiently cooled.

In addition, Japanese Utility Model Publication No. 57-168445 discloses a portable cool box that cools with a heat exchanger provided on the automobile side. However, when the heat load in the air conditioner is high and the output during idle operation is disclosed. If is small, there is a problem that the inside of the cool box cannot be cooled sufficiently.

(Problems to be solved by the invention) On the other hand, Japanese Patent Application Laid-Open No. 57-138416 discloses a structure in which a heat radiating portion of an electronic refrigerating element is brought into contact with a heat exchanger in a refrigeration cycle for air conditioning for cooling. However, since the heat exchanger is built in the cool box, there is a problem in that it cannot be configured to be portable.

Therefore, an object of the present invention is to provide a portable car cool box which can be sufficiently cooled by an electronic refrigeration element.

(Means for Solving the Problem) A vehicle cool box according to the present invention includes a heat-absorbing portion 12b in a cool box 1 for heat insulation formed of a heat insulating material.
So that the heat radiation part 12a is on the inside and the heat radiation part 12a is on the outside.
In addition, a part of the circulating refrigerant of the vehicle air conditioner is supplied to the storage portion 10 for mounting the cool box 1 at a position on this mounting side which comes into contact with the heat dissipation portion 12a when the cool box 1 is mounted. Cool box cooler 8
Is provided so that when the cool box 1 is attached to the storage portion 10, the heat radiating portion 12a of the electronic refrigeration element 12 is brought into contact with the cooler 8 for the cool box to cool it.

(Operation) Therefore, the cool box can be taken out of the storage unit fixed to the car and carried, and when the cool box is installed in the storage unit of the car, the heat dissipation part of the electronic refrigeration element contacts the cooler for the cool box. Since the heat is sufficiently dissipated, the cooling effect of the electronic refrigeration element can be enhanced.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, in an automobile air conditioner 1, a compressor 2, a condenser 3, a liquid receiver 4, an expansion valve 5, and a cooling heat exchanger 6 are connected in this order to a main pipe 11a. The cooling cycle is formed. An expansion valve 7 and a cool box cooler 8 are provided in parallel with the expansion valve 5 and the heat exchanger 6 in the forward path from the liquid receiver 4 to the compressor 2, and the cool box cooler is controlled by opening / closing the valve 9. A part of the circulating refrigerant is supplied to 8 through the bypass pipe 11b.

As shown in FIG. 2, the cool box cooler 8 is embedded inside a housing (storage) 10 fixed to the vehicle body. This housing 10 is made of a heat insulating material, and the door 10a provided on the front side is opened to cool the cool box 1
It is designed to store 1.

The cool box 11 has an opening / closing door 11a on the front,
The electronic refrigeration element 12 is incorporated in the back portion 11b, the heat radiation portion 12a of the element 12 is arranged outside and the heat absorption portion 12b is arranged inside, so that the heat in the cool box 11 is discharged to the outside and cooled. It has become.

The power source of the electronic refrigeration element 12 is connected to the battery on the automobile side when it is incorporated in the storage case, and when it is taken out of the storage case 10, the power source installed in the cool box or a separate body. It is designed to be energized by a power supply.

In the cool box 11, the back surface of the fin 14 is in contact with the heat absorbing portion 12b, and the fin 14 extends inside the cool box 11 to have a large heat absorbing area.

Similarly, a flat heat dissipation plate 15 is brought into contact with the heat dissipation portion 12a,
The heat dissipation area is wide. When the cool box 11 is housed in the housing 10, the heat dissipation plate 15 comes into contact with the flat surface 8a of the cool box cooler 8 to reliably transfer the heat of the electronic refrigeration element to the refrigerant in a large area. It is designed to exchange heat.

On the back surface of the cool box 11, as shown in FIG. 3, a pair of engaging recesses capable of engaging with a separate lid member 16 (described later).
17a and 17b are formed. The lid member 16 is provided with engaging protrusions 16a and 16b which engage with the above-described engaging recesses 17a and 17b, and the lid member 16 is removed when the cool box 11 is taken out of the housing 10 and carried. It is mounted and covers the heat dissipation plate 15 to prevent heat dissipation from the back.

According to the above configuration, when the cool box is stored in the storage case 10, the heat dissipation plate 15 is in contact with the cooler 8, and the heat from the heat dissipation part 12a of the electronic refrigeration element 12 is applied to the heat dissipation plate. 1
Since it is positively cooled via 5, it is possible to achieve sufficient cooling in the heat absorbing portion 12b of the electronic refrigeration element.

Moreover, since the cooler 8 in contact with the heat dissipation plate 15 has the flat surface 8a, the cooler 8 is surely contacted with a large area, so that sufficient heat dissipation can be achieved.

When the cool box 11 is carried outdoors, it is pulled out from the housing 10 and the back 10b is covered so as to cover the heat sink 15.
Attach lid 16 to. This makes it possible to insulate the back 10b during carrying, prevent the outside air temperature from being conducted from the heat dissipation plate 15, and enhance the cold insulation effect.

The cool box 11 is not limited to having a single refrigerator as shown in FIG. 4, and may have a configuration having two storage units, a freezer compartment 18 and a refrigerating compartment 19. in this case,
The inside of the cool box 11 is divided into two parts by a partition wall 20, one end of the fin member 14 is extended to the freezing chamber 18, a second electronic refrigerating element 21 is provided at the one end, and the heat radiating part 21a is brought into contact with the cool box 11. The second cooling fin 22 is brought into contact with the heat absorbing portion 21b.

Although the cool box 11 is housed in the housing 10 in this embodiment, the cool box 11 may be exposed to the outside.
Has a storage part for attaching to a car, and a cool box cooler 8 is provided in that part, and when this cooler 8 comes into contact with a radiator plate 15 provided behind the cool box 11, good.

5 and 6 show a modified example of the cool box cooler 8, in which the cool box cooler 8 is formed with the central portion of the bypass 11b as the flat tube 11c.

According to this modification, if the bypass pipe 11b is made flat and the flat pipe 11c is used, the cool box cooler 8 can be formed with a simple configuration.

(Effect of the Invention) According to the present invention, the cool box has a structure that can be taken out from the storage part of the automobile and carried, and when the cool box is stored in the storage part of the automobile, the heat dissipation part of the electronic refrigeration element is cooled. Since the cool box cooler of the cycle is contacted and heat is released, the inside of the cool box can be cooled quickly and sufficiently.

[Brief description of drawings]

FIG. 1 is a view showing piping of a cool box cooler according to the present invention, FIG. 2 is a sectional view of a cool box stored in a storage section, and FIG. 3 is a sectional view of a cool box taken out from the storage section. FIG. 4 is a sectional view of a cool box according to another embodiment, FIG. 5 is a plan view of a heat exchanging portion showing another embodiment, and FIG. 6 is a sectional view of the heat exchanging portion shown in FIG. is there. 8: Cool box cooler, 8a: Flat surface, 10 ...
Storage part, 11 …… Cool box, 12 …… Electronic refrigeration element,
12a: Heat sink, 12b: Heat sink.

Claims (1)

[Scope of utility model registration request] 1. A refrigerating cool box 1 formed of a heat insulating material is provided with an electronic refrigerating element 12 so that a heat absorbing portion 12b is inside and a heat radiating portion 12a is outside, and the cool box 1 is mounted. In the storage portion 10 for this, a cool box cooler 8 to which a part of the circulating refrigerant of the vehicle air conditioner is supplied is provided at a position where it contacts the heat dissipation portion 12a at the time of mounting the cool box 1 on this mounting side. A cool box for an automobile, characterized in that when the cool box (1) is attached to the storage section (10), the heat radiating section (12a) of the electronic refrigeration element (12) is brought into contact with the cool box cooler (8) for cooling.