JPH08296941A - Portable electronic heating and cooling container - Google Patents

Abstract

PURPOSE: To enable a cooling device and a thermal insulating box to be separated from each other and further to make the thermal insulating box light in weight and suitable to be carried. CONSTITUTION: A cooling device 2 having an electronic cooling element stored therein and further having a suction port 10 and a cold air blowing port 11 installed therein is arranged in separate from a thermal insulating box 3 provided with a container 23 storing foodstuffs and a cooling device storing section 20 in which the cooling device 2 can be freely inserted or removed. The suction port 10 of the cooling device 2 is removably communicated with a discharging port 30 of the thermal insulating box 3 and time air blowing port 11 of the cooling device 2 is removably communicated with a suction port 31 of the thermal insulating box 3, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic heating / cooling container to which a thermoelectric conversion element (Peltier element) is applied.

[0002]

2. Description of the Related Art Conventionally, a portable electronic heating / cooling container 1'for electrically cooling or heating by applying a thermoelectric conversion element.
In general, the structure shown in Japanese Utility Model Publication No. 55-105881 was used. Its structure is as shown in FIG.
The thermoelectric conversion element unit 71 is arranged at the bottom of the hermetically sealed container 70. For example, the heat absorption side is arranged inward of the hermetically sealed container 70 via the metal wall 72, and the heat dissipation side is provided with a radiation fin 73 or the like to provide the hermetically sealed container 70. It is located outside. Further, the radiating fins 73 on the radiating side are forcibly cooled by blowing air by a blowing unit 75 such as a fan motor. In some cases, the heat absorbing side and heat radiating side are reversed.

[0003]

However, in the conventional portable electronic heating / cooling container 1 ', the thermoelectric conversion element unit 7 is used.
1. Since the blower unit 75 is integrated with the closed container 70, it becomes heavy and unsuitable for portable use. The present invention has been made in view of the above conventional problems, and an object thereof is to make a cooling unit and a heat insulating box body separable, and the heat insulating box body is lightweight and portable electronic heating that is optimal for carrying. Another purpose is to provide a cooling container, and another purpose is to provide a portable electronic heating / cooling container that can also be used as a warmer. Another object of the present invention is to provide a portable electronic heating / cooling container capable of improving cooling performance.

[0004]

In order to solve the above-mentioned problems, according to the present invention, the inside of the cooling unit 2 is partitioned by a heat insulating partition wall 6 to form a cooling side air blowing path 7 and a heat radiating side air blowing path 8. The electronic cooling element 14 is disposed between both air passages 7 and 8 in a portion where there is no 6, and the heat exchanger 15 on the cooling side disposed in the air passage 7 on the cooling side and the heat on the heat radiation side disposed in the air passage 8 on the heat radiation side. The electronic cooling element 14 is sandwiched by the exchanger 16 from both sides, and blowing means 9 for sending air to the cooling side and heat radiating side heat exchangers 15 and 16 are provided, and cooling side intake ports are provided in front of and behind the cooling side air passage 7. 10 and a ventilation port 11 are provided respectively, and a cooling unit 2 configured by providing a radiation side intake port 12 and an exhaust port before and after the radiation side ventilation passage 8 and a wall surface 23a of a container portion 23 for storing food etc. A port 31 and a discharge port 30 are provided respectively, and Cooling unit outside surface 23a the cooling unit 2 is accommodated freely out container 2
0 is provided and the heat insulating box 3 is provided, and the cooling unit 2 is housed in the cooling unit housing 20 and the intake port 10 of the cooling unit 2 is connected to the discharge port 30 of the heat insulating box 3 and the cooling unit 2. It is characterized in that the blower port 11 is detachably connected to the suction port 31 of the heat insulating box 3.

Here, the cooling unit 2 preferably comprises means for switching the polarity of the power supply to the electronic cooling element 14. Further, instead of the cooling unit 2, the cooling unit housing section 20 has a suction port 31 of the heat insulating box 3.
It is preferable that a heat insulating unit 38 for heat insulating and sealing the wall surface 23a including the discharge port 30 can be stored in and taken out freely, and it is preferable to further provide a storage portion 35 for dishes and the like inside the heat insulating unit 38.

Further, it is preferable that a windbreak wall 40 is detachably arranged near the inside wall surface 3a of the heat insulating box 3, and it is preferable that the inside of the windbreak wall 40 is filled with a cold storage material 42.

[0007]

According to the present invention, the cooling unit 2 is separated from the heat insulating box 3 having the container portion 23 for storing foods and the like and the cooling unit storing portion 20 for storing the cooling unit 2 so that the cooling unit 2 can be put in and taken out freely. Thus, when cooling the food or the like in the heat insulating box 3, the cooling unit 2 can be stored in the cooling unit storing section 20 of the heat insulating box 3 to cool the inside of the container section 23 of the heat insulating box 3. . Then, when carrying the heat insulating box 3, the cooling unit 2 is removed from the cooling unit housing section 20 of the heat insulating box 3 so that the heat insulating box 3 becomes lightweight and convenient to carry.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. The portable electronic heating / cooling container 1 of this embodiment is shown in FIG.
As shown in (a), it comprises a cooling unit 2 and a heat insulating box 3 independent of this. First, the cooling unit 2
Is detachably attached to the heat insulating box 3,
The inside of the housing 4 is partitioned by a heat insulating partition wall 6 to form a cooling side air blowing passage 7 and a heat radiating side air blowing passage 8, and fan motors 9a and 9b, which are air blowing means 9, are provided on both air blowing passages 7 and 8, respectively. . The layout of the fan mhos 9a and 9b is shown in FIG.
In addition to the intake ports 10 and 12 side as described above, the ventilation port 11 and the exhaust port 13 side may be provided as shown in FIG. 3B. Further, in a portion where the heat insulating partition wall 6 is not provided, an electronic cooling module 14a including a thermoelectric conversion element pair (Peltier element) which is the electronic cooling element 14 is arranged between both air passages 7 and 8 and arranged in the cooling side air passage 7. The cooling side heat exchanger 15 and the heat radiating side heat exchanger 16 arranged in the heat radiating side air passage 8 are used for the electronic cooling module 1
4a is sandwiched from both sides. That is, the cooling side heat exchanger 15 is closely attached to the heat absorbing surface of the electronic cooling module 14a,
The heat radiation side heat exchanger 1 is provided on the heat radiation surface of the electronic cooling module 14a.
6 is in close contact.

Before and after the cooling side air duct 7, a cooling side intake port 10 for sucking air from the inside of the heat insulating box 3 into the cooling side heat exchanger 15 and a blower port 11 are arranged. ,
A blow duct 17 having expansion and contraction elasticity is attached to the blow port 11. In addition, before and after the heat radiation side air passage 8, a heat radiation side intake port 12 for sucking the outside air into the heat radiation side heat exchanger 16 and a wind for passing the wind passing through the heat radiation side heat exchanger 16 to the outside air again. The exhaust port 13 is arranged. The housing 4 of the cooling unit 2 encloses the entire power supply circuit unit 18 and the like that supplies electric power to the electronic cooling module 14a, and heats the housing 4 from the side surface to the bottom surface when the housing 4 is coupled to the heat insulating box body 3. A guide collar 19 that fits in a fitting groove 21 that is recessed in the cooling unit storage portion 20 of the box 3 is provided in a protruding manner. The operating portion of the power supply circuit unit 18 is arranged on the upper surface of the housing 4. This operation unit is provided with an operation switch for switching each operation of cooling, heating, and stopping, a switch for switching the polarity of power supply to the electronic cooling module 14a, and the like, whereby the cooling unit 2 also serves as a heating unit. It can be used for both.

On the other hand, the heat insulating box 3 includes a container portion 23 for storing contents such as food, a heat insulating material 24 such as urethane foam covering the periphery of the container portion 23, and a heat insulating lid 25 for opening and closing the container portion 23. And a hook 26 for locking the heat insulating lid 25 to the container portion 23, and a wall surface 23a of the container portion 23 having an intake port 31 for taking in cool air from the blower port 11 of the cooling unit 2 and the inside of the refrigerator. And an exhaust port 30 for sending the air to the intake port 10 of the cooling unit 2, respectively.
Further, on the outside of the wall surface 23a of the container portion 23, there is provided a cooling unit storage portion 20 in which the cooling unit 2 can be stored in and taken out freely, and in a state where the cooling unit 2 is stored in the cooling unit storage portion 20, The cooling side intake port 10 of the cooling unit 2 is detachably connected to the exhaust port 30 of the heat insulating box body 3, and the air blowing port 11 of the cooling unit 2 is detachably connected to the intake port 31 of the heat insulating box body 3. In addition, a fitting groove 21 into which the guide collar 19 of the cooling unit 2 is fitted when the cooling unit 2 is attached is recessed from the inner side surface to the inner bottom surface of the cooling unit housing portion 20.

Further, in place of the cooling unit 2, a heat insulating unit 38 for thermally insulating and sealing the wall surface 23a including the inlet 31 and the outlet 30 of the heat insulating box 3 is housed in the cooling unit housing portion 20 in a freely removable manner. Made possible. As shown in FIG. 1B, the heat insulating unit 38 has elasticity to close the suction port 31 of the heat insulating box 3 when the heat insulating wall 3 made of urethane foam or the like is connected to the heat insulating box 3 side. Protrusion 32
And the elastic projections 33 that close the discharge port 30 of the heat insulating box 3, respectively, and the storage section 35 for storing tableware such as cups is provided on the side of the heat insulating wall 39 opposite to the side surface on the heat insulating box 3 side. The
The heat insulating wall 39 and the storage portion 35 are surrounded by a housing 5 having a substantially same outer shape as the housing 4 of the cooling unit 2. The housing 5 includes a lid 36 for opening and closing the storage portion 35, and a hinge 37 serving as a fulcrum for opening and closing the lid 36.
And the projection 3 provided on the housing 5 when the lid 36 is closed.
4 is provided with a hook 27 that is locked to 4 and a guide collar 19 that fits into the fitting groove 21 of the heat insulating box 3, and when the cooling unit 2 is stopped and separated from the heat insulating box 3, By mounting the heat insulating unit 38 in the cooling unit housing portion 20, the entire wall surface 23a including the inlet 31 and the outlet of the heat insulating box 3 can be hermetically sealed.

Since the cooling unit 2 is separated from the heat insulating box body 3, when the heat insulating box body 3 is carried, the cooling unit 2 is removed from the cooling unit housing portion 20 of the heat insulating box body 3, There is an advantage that the heat insulating box 3 is lightweight and convenient to carry. Furthermore, by providing the cooling unit 2 independently of the heat insulating box 3,
As shown in FIG. 5, the cooling unit 2 alone can be used for other purposes such as a cold air fan. That is, the cooling unit 2
Since it is detachable from the heat insulating box 3 and is lightweight, it can be carried, and the cooling unit 2 is operated to generate cold air from the air outlet 11 to be used as a cold air fan, or the power circuit unit 18 There is also an advantage that it can be used as a warm air blower or a dryer by reversing the energization direction (reversing +-) by operation and generating warm air.

Here, when the heat insulating box 3 is used as a portable electronic heating / cooling container, the container portion 2 of the heat insulating box 3 is used.
To cool the inside of the cooling unit 3, the cooling unit 2 is mounted in the cooling unit housing 20 as shown in FIG. At this time, the air inlet 10 of the cooling unit 2 faces the air outlet 30 of the heat insulating box 3, and the elastic duct 11 of the cooling unit 2 elastically adheres to the air inlet 31 of the heat insulating box 3. However, the ventilation port 11 of the cooling unit 2 has the heat insulation box 3
To the suction port 31 of the. In this state, the cooling unit 2
When electric power is supplied to the electronic cooling module 14a, the cooling side heat exchanger 15 sandwiching the electronic cooling module 14a is cooled, while the heat radiation side heat exchanger 16 is heated.
When the fan motor 9a sucks the air inside the container portion 23 from the outlet 30 and blows it to the cooling side heat exchanger 15, the air sucked in the cooling side heat exchanger 15 is cooled to become a cold air, and the elastic elasticity. Ventilation duct 1
7. After passing through the air blow port 11, the air is again fed into the container portion 23 through the suction port 31.

By circulating the air inside the container portion 23 in this way, the temperature inside the container portion 23 can be lowered and the contents stored in the container portion 23 can be cooled. On the other hand, in the heat radiation side heat exchanger 16, the outside air is sucked in by the fan motor 9b from the heat radiation side intake port 12, the air sucked in the heat radiation side heat exchanger 16 is heated, becomes warm air, and is discharged from the exhaust port. It is exhausted to the outside air again.

By the way, it is known that the capacity of the thermoelectric conversion element is higher as the temperature difference between both ends of the element is smaller. Therefore, when the heat radiation side heat exchanger 16 heated by the electronic cooling module 14a is heat-exchanged with the outside air to cool the heat radiation side heat exchanger 16, the heating side of the electronic cooling module 14a is cooled, and as a result, The temperature difference between both ends of the element is reduced.

Next, when heating the inside of the container portion 23,
When electric power is supplied to the electronic cooling module 14a of the cooling unit 2 in the opposite polarity (inversion of +-) to that at the time of cooling, the cooling side heat exchanger 15 that sandwiches the electronic cooling module 14a.
Is heated, while the heat radiation side heat exchanger 16 is cooled. When the fan motor 9a sucks the air inside the container portion 23 from the outlet 30 and blows it to the cooling-side heat exchanger 15, the air sucked in the cooling-side heat exchanger 15 is heated and becomes hot air. After passing through the duct 17 and the air blow port 11, it is again fed into the container portion 23 through the suction port 31. By circulating the air inside the container portion 23 in this manner, the temperature inside the container portion 23 is raised. That is,
The contents stored in the container portion 23 are heated. On the other hand, in the heat radiation side heat exchanger 16, the outside air is sucked in by the fan motor 9b from the heat radiation side intake port 12, and the heat radiation side heat exchanger 1
The air sucked in 6 is cooled, becomes cold air, and is exhausted again to the outside air from the exhaust port 13. Alternatively, the fan motor 9b that blows air to the heat radiation side heat exchanger 16 may be stopped to perform heat exchange by natural convection.

By the way, the heat insulating box 3 in the cooling unit 2
After cooling the contents inside to a predetermined temperature, the cooling unit 2
When the operation is stopped (power is not supplied to the electronic cooling module 14a), the inlet 31 and the outlet 30 from the inside of the heat insulating box 3 and the electronic cooling module 1 of the cooling unit 2
Heat leaks through the heat exchangers 15 and 16 on the cooling side and the heat radiation side that sandwich 4a. Therefore, when the operation of the cooling unit 2 is stopped, the cooling unit 2 is removed from the cooling unit housing portion 20 and the heat insulating unit 38 is attached to the cooling unit housing portion 20 instead. As a result, FIG.
As shown in (b), the suction port 31 and the discharge port 30 of the heat insulating box 3 are closed by the heat insulating projections 32 and 33, respectively, and at the same time, the heat insulating wall 39 includes a wall surface including the suction port 31 and the discharge port 30. Since the whole 23a is hermetically sealed, heat leakage from the inside of the refrigerator is prevented. By doing so, it is possible to keep the contents inside the heat insulating box 3 cool (or keep warm) in a good state, and to extend the cool keeping time (or keep warm time).

FIG. 6A shows a case in which the windbreak wall 40 is detachably arranged near the inner wall surface 3a of the heat insulating box 3. FIG.
Since only the heat insulating box 3 and the windbreak wall 40 are different in structure from the embodiment described above, description of the structure of the cooling unit 2 is omitted. A windbreak wall 40 is arranged in the vicinity of the inner wall surface 3a of the heat insulating box 3, and is provided with a locking groove 41 for press-fitting and locking the windbreak wall 40 to such an extent that it can be detached. The other construction of the heat insulating box 3 is similar to that of the embodiment shown in FIG. The windbreak wall 40 is mainly attached when the cooling unit 2 is in operation. When the windshield 40 is not arranged, the cooling unit 2 is not operated when the cooling unit 2 is operating.
The air sent from the inside promotes heat exchange on the inside wall surface 3a, and the heat enters through the inside wall surface 3a. Therefore, by mounting the windbreak wall 40, the heat exchange inside the windshield wall 40 is promoted, but the heat exchange at the inside wall surface 3a becomes equal to that in the windless state. That is, it is possible to prevent the heat exchange from being promoted on the inside wall surface 3a by the air sent from the cooling unit 2 and to reduce the invasion of heat through the inside wall surface 3a, so that the cold insulation performance can be improved. Moreover, since the wind circulates inside the heat insulating box 3, the wind barrier 40
The cooling from is performed more efficiently.

Further, as shown in FIG. 6B, when the cooled windbreak wall 40 filled with the cold storage material 42 is used as the windbreak wall 40, heat enters through the inside wall surface 3a by the windbreak wall 40. In addition to the effect that the cold storage performance is improved and the cold insulation performance is improved, heat exchange is promoted on the inner wall surface of the windbreak wall 40 by the air sent from the cooling unit 2, and the cold heat storage material 42 cools the heat. Take away. That is, the windbreak wall 40 itself cools, and the cooling performance of the portable electronic heating / cooling container 1 is significantly improved.

As another embodiment of the cooling unit 2'and the heat insulating box 3 ', as shown in FIGS. 7 to 9, the cooling unit 2'may be attached to and detached from the heat insulating box 3'. . This cooling unit 2 ′ includes an intake duct 51 having expansion and contraction elasticity and an exhaust duct 52 having expansion and contraction elasticity on the upper surface of the housing 4, and the intake port 12 of the heat radiation side air passage 8 communicates with the intake duct 51. The exhaust port 13 of the heat radiation side blower path 8 communicates with the exhaust duct 52.

In the heat insulating box 3 ', a part of the container portion 23 for storing the contents also serves as the cooling unit storage portion 20 for storing the cooling unit 2'. The heat insulating lid 25 is provided with an intake through hole 60 and an exhaust through hole 61.
In the closed state, the outside air is taken into the heat radiation side air passage 8 of the cooling unit 2'through the air intake through hole 61 through the air intake duct 51 of the cooling unit 2 ', and the air inside the heat radiation side air passage 8 is cooled by the cooling unit 2'. The air is again exhausted to the outside air from the exhaust duct 52 'of the heat insulating box 3'through the exhaust through hole 61 of the heat insulating box 3'. The other configurations of the cooling unit 2'and the heat insulating box 3'are the same as those of the embodiment shown in FIG.

Here, when cooling the inside of the container portion 23, the cooling unit 2'is housed in the heat insulating box 3 ', and the cooling unit 2'is operated to close the heat insulating lid 25. At this time, the electronic cooling module 14a of the cooling unit 2 '
Power is supplied to the cooling side heat exchanger 15 that sandwiches the electronic cooling module 14a, while the heat radiation side heat exchanger 16 is heated. On the heat radiating side, the air of the outside air is expanded and contracted from the intake through hole 61 provided in the heat insulating lid 25 by the fan motor 9b.
Is sucked into the heat radiation side air passage 8 through the
Exhaust duct 52 with elastic elasticity after being heated at 6
Is exhausted to the outside air again through the exhaust through hole 61 provided in the heat insulating lid 25. At this time, on the cooling side, as in the previous embodiment, the air inside the container portion 23 is sucked in by the fan motor 9a from the exhaust port 30, and the cooling side heat exchanger 1
The contents stored in the container unit 23 can be cooled by passing the contents to the inside of the refrigerator through the blower port 11 again.

On the other hand, when heating the inside of the container portion 23, when electric power is supplied to the electronic cooling module 14a of the cooling unit 2'in the opposite polarity (inversion of +-) to that at the time of cooling, the electronic cooling module 14a is turned on. Cooling side heat exchanger 15 to hold
Is heated, while the heat radiation side heat exchanger 16 is cooled. On the radiating side, the outside air is radiated from the radiating side air passage 8 from the through hole 61 for intake provided in the heat insulating lid 25 by the fan motor 9b through the intake duct 51 having elastic elasticity.
After being sucked into and cooled by the heat radiation side heat exchanger 16,
The exhaust duct 52 having expansion and contraction elasticity is exhausted to the outside air again through the exhaust through hole 61 provided in the heat insulating lid 25. At this time, on the cooling side, as in the above-described embodiment, the air inside the container portion 23 is sucked in by the fan motor 9a from the discharge port 30, passed to the cooling side heat exchanger 15, and sent again from the blower port 11 into the chamber. As a result, the contents stored in the container portion 23 can be heated.

Thus, the container portion 23 for storing the contents
Part of the cooling unit also serves as a cooling unit housing portion, and the cooling unit 2'is detachably mounted in the container portion 23 of the heat insulating box 3 ', so that after the cooling unit 2'is removed, as shown in FIG. There is no need for such a heat insulating unit 38, and there is an advantage that it can be used as a cold container only with the heat insulating box 3 '.

[0025]

As described above, according to the invention of claim 1, the inside of the cooling unit is partitioned by the heat insulating partition to form the cooling side air blowing path and the heat radiating side air blowing path, and the electronic cooling element is provided in the portion without the heat insulating partition. The cooling side heat exchanger is arranged between both air blow passages, and the cooling side heat exchanger and the heat radiation side heat exchanger placed in the heat radiation side air passage sandwich the electronic cooling element from both sides, and the cooling side And a ventilation means for sending air to the heat radiation side heat exchanger,
A cooling unit configured to have a cooling-side intake port and a ventilation port provided in front of and behind the cooling-side ventilation channel, and a radiation side intake port and an exhaust port provided in front of and behind the cooling-side ventilation channel, and a container section for storing food and the like. Inlet and outlet are provided on the wall of the
A heat insulating box configured by providing a cooling unit housing portion in which the cooling unit is housed so that the cooling unit can be freely taken in and out, on the outside of the wall surface of the container portion, and the cooling unit of the cooling unit is housed in the cooling unit housing portion. The cooling side intake port is connected to the exhaust port of the heat insulation box and the ventilation port of the cooling unit is connected to the intake port of the heat insulation box so that they can be detachably connected. By storing in the cooling unit storage part of the heat insulating box, the inside of the container part of the heat insulating box can be cooled. When carrying the heat insulating box, the cooling unit is removed from the cooling unit housing of the heat insulating box, so that the heat insulating box is lightweight and convenient to carry. Furthermore, with the cooling unit removed from the heat insulating box, the cooling unit alone can be used as a cold / warm fan.

According to the invention of claim 2, the cooling unit of claim 1 comprises means for switching the polarity of the power supply to the electronic cooling element. Therefore, in addition to the effect of claim 1,
Electric power can be supplied to the electronic cooling element of the cooling unit with the opposite polarity (reversing +-) from that at the time of cooling, and the cooling side heat exchanger holding the electronic cooling element can be heated, while the heat radiation side The heat exchanger can be cooled, and the heat insulating box can be used as a warmer.

In the invention of claim 3, in place of the cooling unit, a heat insulating unit for thermally insulating and sealing the wall surface including the inlet and the outlet of the heat insulating box can be freely put in and taken out of the cooling unit housing portion of the first aspect. Since it can be stored in,
In addition to the effects described, when the cooling unit is out of operation,
By removing the cooling unit from the heat insulation box and installing the heat insulation unit in the heat insulation box instead, the wall surface including the intake port and the discharge port of the heat insulation box is heat-insulated and sealed to prevent heat leakage into the container. It can be eliminated and the heat insulating box can be used as a cold container.

According to the invention of claim 4, since the storage unit for dishes and the like is provided inside the heat insulation unit of claim 3, in addition to the effect of claim 3, the heat insulation unit stored in the cooling unit storage unit is used. Then, the tableware etc. can be carried at the same time. In the invention of claim 5, since the windbreak wall is removably arranged near the inner wall surface of the heat-insulating box body of the first aspect, in addition to the effect of the first aspect, heat on the inner wall surface of the heat-insulating box body The invasion of heat due to exchange can be reduced, the cold insulation performance is improved, and the air is circulated in the inside of the heat insulating box, so that the cooling effect by the windbreak wall becomes more efficient.

According to the invention of claim 6, since the cold storage material is filled inside the windbreak wall of claim 5, in addition to the effect of claim 5, the windbreak wall itself is cooled to carry portable electronic heating. The cooling performance as a cooling container is significantly improved.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a cross-sectional view after a cooling unit and a heat insulating box are connected, and FIG. 1B is a cross-sectional view after a heat insulating unit and a heat insulating box are connected.

FIG. 2 (a) is a perspective view of the cooling unit and the heat insulating box before the connection, and FIG. 2 (b) is a perspective view after the connection.

FIG. 3 (a) is a sectional view of the cooling unit shown in FIG.
FIG. 6 is a cross-sectional view of another example of a cooling unit.

FIG. 4 (a) is a perspective view of the heat insulating unit and the heat insulating box body before being connected, and FIG. 4 (b) is a perspective view of the heat insulating unit and the heat insulating box body after being connected.

FIG. 5 is a perspective view illustrating another application of the cooling unit alone of the above.

6A and 6B show another embodiment of the present invention, FIG. 6A is a sectional view when a windbreak wall is attached, and FIG. 6B is a sectional view when a windbreak wall filled with a cold storage material is attached.

7A and 7B show still another embodiment of the present invention, in which FIG. 7A is a perspective view before the cooling unit and the heat insulating box are connected, and FIG. 7B is a perspective view after the cooling unit and the heat insulating box are connected. .

FIG. 8 is a side sectional view of the above cooling unit.

FIG. 9 (a) is a front sectional view of the cooling unit of the above,
(B) is a partially cutaway cross-sectional view of the cooling unit, and (c) is a cross-sectional view after the cooling unit and the heat insulating box are coupled.

FIG. 10 is a cross-sectional view of a conventional electronic heating and cooling container.

[Explanation of symbols]

 2 Cooling Unit 3 Insulation Box Body 3a Inside Wall Surface 6 Insulation Partition 7 Cooling Side Blower 8 Radiating Side Blower 9 Blower Means 10 Cooling Side Inlet 11 Blower 12 Radiating Side Inlet 13 Electronic Cooling Element 15 Cooling Side Heat exchanger 16 Radiation side heat exchanger 20 Cooling unit storage 23 Container part 23a Wall surface 30 Discharge port 31 Inlet 35 Storage part 38 Thermal insulation unit 40 Wind wall 42 Cooling material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Fujiwara 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (6)

[Claims] 1. A cooling-side air passage and a heat-radiation-side air passage are formed by partitioning the inside of a cooling unit with an adiabatic partition, and an electronic cooling element is disposed between both air-blowing passages in a portion without an adiabatic partition, and a cooling-side air passage. A blower that sandwiches the electronic cooling element from both sides with a heat exchanger on the cooling side arranged in the passage and a heat exchanger on the heat radiation side placed in the heat radiation side, and sends air to the heat exchanger on the cooling side and the heat exchanger on the heat radiation side, respectively. A cooling unit, which is provided with a cooling-side intake port and a ventilation port before and after the cooling-side air duct, and a radiation-side intake port and an exhaust port respectively before and after the radiation-side air duct, A heat insulating box body configured by providing a suction port and a discharge port respectively on the wall surface of the container portion to be stored and providing a cooling unit storage portion in which the cooling unit can be stored in and taken out outside the wall surface of the container portion. Equipped with a cooling unit Portable electronic heating, characterized in that the cooling side intake port of the cooling unit is detachably connected to the intake port of the cooling unit and the ventilation port of the cooling unit is detachably connected to the intake port of the insulating box body when housed in Cooling container. 2. The portable electronic heating and cooling container according to claim 1, wherein the cooling unit includes means for switching the polarity of power supply to the electronic cooling element. 3. The cooling unit accommodating portion is capable of accommodating, in place of the cooling unit, a heat insulating unit for thermally insulating and sealing a wall surface of the heat insulating box including an inlet and an outlet, which can be freely taken in and out. The portable electronic heating / cooling container according to claim 1. 4. The portable electronic heating / cooling container according to claim 3, wherein a storage portion for dishes and the like is provided inside the heat insulating unit. 5. The portable electronic heating / cooling container according to claim 1, wherein a windbreak wall is detachably arranged near the inner wall surface of the heat insulating box. 6. The portable electronic heating / cooling container according to claim 5, wherein the windbreak wall is filled with a cool storage material.