JPS5834387Y2 - Electronically cooled portable cooler - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an electronically cooled portable cooler.

In recent years, small portable electronic coolers that use an automobile battery as a power source have become widely used.

As shown in Fig. 1, a lid body 2 and a case 3 are formed, in which a heat insulating member 1 is enclosed, made of a plastic material or the like, and an inner storage tank 4 for cooling made of an aluminum material or the like is installed inside the case 3. A cooling unit 8 consisting of a metal mounting base 5, an electronic cooling element such as a thermo module 6, and heat dissipation fins 7 is fixedly installed at the bottom of the inner tank 4, and furthermore, a cooling unit 8 consisting of a metal mounting base 5, an electronic cooling element such as a thermo module 6, and heat dissipation fins 7, etc.
It is constructed by providing air exhaust ports 3d and 3e at a and 3b, an air intake port 3f at the bottom 3C, and a forced cooling fan 9 at a predetermined position within the case.

When a predetermined power is applied to the thermo module 6 from a battery (not shown), the temperature on the mounting base 5 side of the thermo module 6 decreases, cooling the inner tank 4 via the mounting base 5, and cooling the inner tank 4 through the mounting base 5. The temperature on the 7 side rises and generates heat.

This generated heat is radiated by the fins 7, and the fan 9 causes cold air from outside to flow into the case from the air intake holes 3f and hit the fins 7, and then from the exhaust holes 3d and 3e to the case 3.
The fins 7 are forcibly cooled by discharging the hot air inside, thereby increasing the cooling effect of the thermo module 6.

However, when the power to the thermo module 6 is turned off, air flows in from the air intake hole 3f, exhaust hole 3d, 36, etc., and the inner tank 4 is heated via the cooling section 8. The drawback was that the cooling effect of the cooler after turning off was very poor.

The present invention was developed to eliminate the above-mentioned drawbacks of the conventional technology. During cooling, that is, when the power is turned on, an insulating batt is inserted between the lid and the inner tank to improve the adhesion between the cooling part and the inner tank. This is an electronically cooled portable cooler that has improved upper insulation, and an insulating bat is interposed between the cooling part and the inner tank to thermally isolate the inner tank from the cooling part when the power is turned off. It provides:

Hereinafter, the present invention will be described in detail based on an embodiment of the accompanying drawings.

In FIG. 2, a case 10 and a lid 11 are each made of, for example, a plastic material, and a heat insulating material 1 is provided inside.
2.13 is included.

At the bottom 10b of the storage section 10a of the case 10, a metal cooling plate, for example, an aluminum plate 14, which has approximately the same size as the bottom 10b and has good thermal conductivity, is disposed.

A metal mounting base 15 for mounting the electronic cooling element is closely fixed to the bottom of the aluminum plate 14, approximately in the center thereof.

The electronic cooling element 16 is, for example, a thermo module, and the cooling surface 16a is closely fixed to the mounting base 15, and the heating surface 1
A heat dissipation fin 17 is closely fixed to 6b.

A predetermined amount of power is applied to this thermo module 16 from a battery (not shown) mounted on the vehicle.

These mounting base 15, thermo module 16, fin 1
7 constitutes a cooling section 18.

A forced cooling fan 1 is located below the heat dissipation fins 17.
9 is placed.

Furthermore, air exhaust ports 10e are provided at predetermined positions on both sides 10C and 10d of the case 10.

A cooling air intake port 10h is formed in the bottom portion 10g at a position facing the fan 19.

When the fan 19 is driven, external air flows in from the intake port 10h, hits the fins 17, cools the fins 17, and is discharged from the exhaust ports 10e and 10f.

In this way, the fins 17 are forcedly cooled.

The inner tank 20 is a storage tank for cooling, and is made of a metal member, for example, an aluminum member.

This inner tank 20 is formed smaller than the housing portion 10a of the case 10 by a predetermined dimension.

Further, a heat insulating bat member 22 is arranged in the gap between the inner tank 20 and the lid 11 so as to be freely inserted therein.

When the power is on, the heat insulating bat member 22 is used by being inserted between the lid, which is the storage part, and the inner tank, and when the power is off, it is used by being inserted between the cooling plate and the inner tank. It is something that

The cooler 30 is configured in this way.

When cooling the inner tank 20, that is, when the power is turned on, the heat insulating para I.
Close (Figure 2).

In this case, adding a small amount of water between the bottom surface 20a of the inner tank 20 and the cooling plate 14 can bring them into close contact very effectively.

Next, when power is applied to the thermo module 16 from the vehicle's battery, the temperature of the cooling surface 16a gradually decreases, and the mounting plate 15, the cooling plate 14, and the inner tank 20 are gradually cooled accordingly.

Further, the heat generating surface 16b of the thermo module 16 is forcibly cooled by the fins 17, the fan 19, and the like.

Cooling surface 16a of thermo module 16 is heat generating surface 16b
The inner tank 20 is cooled by a predetermined temperature difference with respect to the temperature.

Therefore, as the temperature of the heat generating surface 16b is lowered by forced cooling, the temperature of the inner tank 20 can be lowered.

Then, while applying power to the thermo module 16,
Inner tank 20 is cooled.

At this time, the heat insulating batt member 22 has a housing portion 1
0 a to enhance the upper insulation effect, and to prevent the inner tank from separating from the cooling plate due to shocks such as vibrations received while the vehicle is running, the inner tank is pressed from above to prevent the cooling plate from separating from the inner tank. Improves the adhesion with the inner tank to increase cooling efficiency.

Now, when the cooler 30 is taken out of the vehicle and carried around freely, the thermo module 16 is separated from the battery.

Next, the lid body 11 is opened, the inner tank 20 is pulled out from the storage part 10a, and the heat-insulating Para I member 22 is placed on the cooling plate 14, and then the inner tank 20 is stored in the storage part 10a, and the lid body is removed. 1
1 (Fig. 3).

Perform the above actions quickly.

That is, the heat insulating bat member 22 is inserted between the cooling plate 14 and the bottom 2Oa of the inner tank 20.

In this way, the inner tank 20 and the cooling plate 14 are completely thermally isolated.

The temperature of the cooling surface 16a of the thermo module 16 gradually rises when the power is turned off.

Finally, both the cooling surface 16a and the heat generating surface 16b become equal to the outside air temperature.

The temperature of the cooling plate 14 also becomes equal to the outside air temperature.

However, the inner tank 20 is completely thermally isolated and sealed inside the storage part 10a, and therefore, the temperature of the inner tank 20 remains at the low temperature when cooled, regardless of the temperature change of the cooling plate 14. Retained.

Note that if a cold storage material is used as the heat insulating bat member, it can also be used as a heat insulating material, and if one that has been cooled in advance is used, the low temperature retention effect will be further promoted.

According to the present invention, when the power is turned on, that is, during cooling, the insulation Para I~ is placed between the lid body and the inner tank to improve the adhesion between the inner tank and the cooling plate, and to enhance the upper insulation effect. ,
In addition to reducing the cooling efficiency by -1, after the power to the thermo module is turned off, that is, during cold storage, it is interposed between the cooling part and the inner tank, and the temperature of the inner tank is kept at a low temperature for a long time. Since the insulation batt is always used inside the equipment, it does not require a special storage space, has extremely good volumetric efficiency, is extremely simple to configure, is inexpensive, and has a cooling effect. can provide an excellent cooler.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of a conventional electronically cooled portable cooler, Figure 2
The figure is a sectional view showing an embodiment of the electronically cooled portable cooler according to the present invention, and FIG. 3 is an explanatory view showing the state of use of the cooler shown in FIG. 2 when the power is turned off. 10... Case, 11... Lid body, 12
．． 13... Heat insulation member, 14... Cooling plate, 15... Mounting stand, 16... Thermo module, 17... Fin, 19・・・・・・
Fan, 20...Inner tank, 22...Insulating batt member.

Claims (1)

[Claims for Utility Model Registration] An insulating case comprising an electronic cooling section fixedly installed at the bottom and a lid at the top, and a cooling device with good heat conduction that is closely fixed to the cooling surface of the cooling section. a plate, a heat insulating bat, and an inner tank housed in the heat insulating case, and the heat insulating bat connects between the lid body and the inner tank during cooling by supplying current to the electronic cooling unit. is inserted between the cooling plate and the inner tank to improve the adhesion between the cooling plate and the inner tank and to improve the upper insulation. 1. A portable electronic cooler characterized by having a thickness approximately equal to the difference between the depth of the storage section of the heat insulation case and the depth of the inner tank so as to improve the insulation properties of the lower part when inserted.