KR20010000992A - A thermo-electric refrigerator and warmer for passenger vehicles - Google Patents

Abstract

Cold storage device for a vehicle using a thermoelectric module of the present invention includes a temperature sensor and a heat absorbing plate manufactured in the shape of a beverage can, a thermoelectric module, a heat sink and a heat sink blade for dissipating heat generated by the thermoelectric module, the heat sink and the heat sink And a main body for discharging heat generated from the wing to the outside of the main body, and an air outlet and a cup holder. The heat dissipation vane installed on the heat dissipation plate of the cold / cold storage for a vehicle using the thermoelectric module of the present invention is installed on the heat dissipation at intervals of 2 mm to 4 mm, and the thickness of the heat dissipation vane is 1 mm to 1.5 mm. In addition, the other heat sink used in the present invention consists of an upper heat sink that the heat sink wings are horizontally installed, a lower heat sink that the heat sink wings are vertically installed, and a heat pipe connecting the upper heat sink and the lower heat sink.

Description

A thermo-electric refrigerator and warmer for passenger vehicles}

The present invention relates to a cold compartment for a vehicle. More specifically, the present invention is an environment-friendly product having almost no environmental pollution and operation noise in a thermoelectric cooling method that does not use refrigerant gas such as freon, and has a refrigeration and warming function, and uses a thermoelectric module that can be used for various purposes. It's about Django.

Modern people use vehicles almost every day in their daily lives, and due to traffic congestion, the time spent in vehicles is increasing day by day, and the cases of long-distance trips and business trips are increasing.

Conventionally, an ice box or a small refrigerator has been used to store food in a long trip. However, iceboxes need to periodically change ice, it is difficult to maintain a constant temperature, small refrigerators are bulky, noisy, can cause vehicle battery discharge due to overload, and they are used as refrigerant gas. There are various problems such as the use of gas, which causes serious environmental pollution such as ozone layer destruction.

Some products have been launched in the United States, Canada, Sweden, China, etc. using a thermoelectric device. However, until now, the concept of the ice box has not been largely escaped, and the performance and technology level remain at the basic level, so it is still insufficient to give the consumer an image of the ice box and the refrigerator. Some products using thermoelectric elements have been released in Korea, but almost all of them are copies of foreign products, and performance is also very poor.

Thermoelectric cooling is an electronic cooling method using endothermic and exothermic phenomena which appear at the contact portions of the thermoelectric circuits composed of different n and p type thermoelectric semiconductor elements.

The feature of thermoelectric cooling is that it does not use refrigerant gas such as freon, and there is no mechanical operation part such as compressor, so it operates regardless of installation position or direction with almost no environmental pollution or operation noise. In addition, the direction and amount of heat absorption and heat generation can be changed by the magnitude and direction of the current, thereby enabling micro cooling, local cooling, and ultra-precision temperature control, which were not possible with the conventional refrigerant method.

In the thermoelectric module, a? -Type circuit using a thermoelectric semiconductor element is called a p-n thermocouple, and a plurality of thermocouples connected and modularized is called a thermoelectric module.

This semiconductor device is an advanced semiconductor developed in the former Soviet Union and reverses the direction of heat conduction. That is, it is a semiconductor element which reverses the direction of energy movement from a high place to a low place. By using this, a cold temperature effect can be obtained without using a refrigerant or a compressor such as freon gas. Therefore, it is emerging as a solution that can replace the refrigerant causing the ozone layer destruction.

The thermoelectric module was developed and used as a cooling device in the electronic circuit heating portion of a space rocket in the former Soviet Union, and is currently used mainly in military and medical equipment such as a CPU cooler of a computer and a special medical device. However, the thermoelectric module is very sensitive to the influence of the ambient temperature, the existing products have a significant decrease in performance when the ambient temperature exceeds 25 ℃, has a problem that does not function at all above 30 ℃. Moreover, the defect as a commodity is not solved so that cooling time exceeds 2 hours.

Utility Model Registration Application No. 97-32540 "vehicle cold and cold storage" filed by the present inventors by using a thermoelectric module to connect the thermoelectric aluminum plate and the aluminum heat sink designed to transfer the heat or cold generated in the thermoelectric module well It is a three-dimensional cooling system for cold and cold vehicles that delivers evenly conducted heat or cold inside. The invention has the disadvantage that it takes a long time to cool the contents.

Therefore, the present inventors can cool down in a shorter time than a refrigerator using a conventional thermoelectric module, and unlike the general refrigerator, the inventors have developed a cold / hot refrigerator for a vehicle using an environmentally friendly thermoelectric module having both a refrigeration and a heating function.

An object of the present invention is to provide a cold compartment for a vehicle using an environmentally friendly thermoelectric module that does not use refrigerant gas.

Another object of the present invention is to provide a cold storage for a vehicle using a thermoelectric module using a direct cooling method.

Still another object of the present invention is to provide a cold storage vehicle for a vehicle using a thermoelectric module having a function of refrigerating and heating.

1 is a perspective view schematically showing a specific example of a cold / hot refrigerator for a vehicle using a thermoelectric module according to the present invention.

2 is a plan view (a) and a rear view (b) of FIG.

3 is a sectional view taken along the line A-A in FIG.

4 is a cross-sectional view taken along line B-B in FIG.

5 is a use of the heat absorbing plate.

6 is a perspective view schematically showing another embodiment of a cold compartment for a vehicle using a thermoelectric module according to the present invention.

FIG. 7 is a rear view of FIG. 6.

8 is a view showing the structure of a heat sink used in another embodiment of a cold and cold vehicle for a vehicle using a thermoelectric module according to the present invention.

9 is a cross-sectional view taken along the line A-A of FIG.

FIG. 10 is a cross-sectional view taken along line B-B in FIG.

Figure 11 is a plan view schematically showing another embodiment of a cold compartment for a vehicle using a thermoelectric module of the present invention.

12 is a rear view of FIG.

FIG. 13 is a sectional view taken along the line A-A of FIG.

14 is a cross-sectional view taken along the line A-A of FIG.

<Brief description of the symbols in the drawings>

1: endothermic plate 2: thermoelectric module

3: heat sink 4: heat

5: main body 6: control switch

7: Cup holder 8: Temperature sensor

9: heat sink wing 10: air outlet

11: lower heat sink 12: upper heat sink

13: heat pipe

The present invention relates to a vehicle cold and cold storage using a thermoelectric module that is environmentally friendly and does not use a refrigerant gas and has a refrigeration and warming function.

Existing products using the conventional thermoelectric module requires a cooling time of 2 hours or more, while the cold storage for a vehicle according to the present invention can obtain the required cooling effect in about 30 minutes for cans and about 1 hour for 6L grades. Cooling performance can be achieved even at ambient temperature of 30 ℃ or higher.

Cold and cold storage for vehicles using the thermoelectric module of the present invention is a thermoelectric cooling method that does not use refrigerant gas, such as freon, is an environmentally friendly product with little environmental pollution and operating noise, and has a function of refrigeration and warming, so it is used for multipurpose. It is possible to keep a variety of beverages, food, etc. freshly used during refrigeration, and can use a variety of food beverages, herbs, milk, etc. warmly when used in warm. Cold and cold storage of the vehicle of the present invention is suitable for vehicles with a voltage of 12 ~ 24V, it can be used for home use by using a separate adapter. In addition, the present invention is suitable for use as a personal compact cold storage and a vehicle cold storage, because the mechanical operating parts such as the compressor can be reduced in volume.

With reference to the drawings the cold storage for a vehicle using the thermoelectric module of the present invention will be described in detail below.

1 is a perspective view schematically showing a specific example of a cold / hot refrigerator for a vehicle using a thermoelectric module according to the present invention. FIG. 2 schematically shows a plan view (a) and a rear view (b) of FIG. FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 (a), in which a cold storage device for a vehicle using a thermoelectric module according to the present invention has a heat absorbing plate (1), a thermoelectric module (2), manufactured to obtain a maximum cooling effect. Heat sink (3) specially manufactured for dissipating heat generated by the thermoelectric module, fan (4) for discharging heat generated from the heat sink to the outside of the main body and the main body 5 having an air outlet and a cup holder (5) Consists of FIG. 4 is a sectional view taken along line B-B in FIG. 2 (b) to show the positions of the control switch 6 and the cup holder 7 which can easily operate switching between 12V and 24V.

5 is a view of use of the heat absorbing plate 1. Fig. 5 (a) is a plan view of the heat absorbing plate, and Fig. 5 (b) is a state diagram in which two large beverage cans having a diameter of 66 mm are attached to the heat absorbing plate, and Fig. 5 (c) is 66 mm and 53 respectively in diameter. It is a state figure which attached the large beverage can and the small beverage can which are mm to a heat absorbing plate.

The heat absorbing plate 1 is manufactured in a double semi-circular shape so that a large beverage can or a small beverage can of 66 mm and 53 mm in diameter can be in close contact with each other. The heat absorbing plate 1 directly cools the beverage can by directly contacting the beverage can. The cooling time is shorter than the conventional three-dimensional cooling method. The heat absorbing plate (1) is provided with a temperature sensor (8) capable of sensing the temperature, when used as a warmer serves as a heat sink.

The thermoelectric module exhibits a sensitive reaction to the ambient temperature to release the heat as quickly as the amount of heat generated in the thermoelectric module to obtain a desired cooling effect, and to obtain the cooling effect, the surface area of the heat sink must be maximized to the maximum. In manufacturing the heat sink, the surface area is limited in producing a heat sink by a general extrusion method, and thus it is difficult to obtain a desired heat dissipation effect. Therefore, as shown in FIGS. 3 and 4, the plurality of heat sink blades 9 are installed on the aluminum heat sink 3 to maximize the area of the heat sink to obtain the maximum heat dissipation effect.

The air outlet 10 is formed in the main body 5 so that cold air or heat generated in the thermoelectric module can be discharged to the outside of the main body by the fin 4 through the heat sink 3 and the heat sink blades 9. have.

In the thermoelectric module used in the present invention, one or a plurality of thermoelectric modules may be installed depending on the capacity of the cold and hot store.

6 is a perspective view schematically showing another embodiment of a cold compartment for a vehicle using a thermoelectric module according to the present invention. FIG. 7 is a rear view of FIG. 6. Figure 8 is a view showing the structure of a heat sink used in another embodiment of a cold compartment for a vehicle using a thermoelectric module of the present invention.

Figure 8 (a) is a front view of the heat sink used in another embodiment of the present invention. The lower part of the heat sink is connected to the thermoelectric module, and the heat sink blades are vertically formed, and the upper part of the heat sink is horizontally installed with the blades of the heat sink. The upper part of the heat sink and the lower part of the heat sink are connected by a heat pipe. Fig. 8B is a side view of the heat sink, and Fig. 8C is a bottom view of the heat sink.

Heat generated in the thermoelectric module is transferred to the lower heat sink 11, is transferred to the upper heat sink 12 through the heat pipe 13, and discharged to the outside. The heat sink as described above has a low residual heat in the lower heat sink to increase the cooling efficiency, heat emission and discharge rate is significantly increased than the existing heat sink to increase the cooling performance.

9 is a cross-sectional view taken along the line A-A of FIG. As shown in another embodiment of the cold storage for a vehicle using a thermoelectric module according to the present invention is a lid 18, a container 15 that can contain the contents made of aluminum plate, the heat absorbing plate 16 connected to the container, Thermoelectric module 14, the lower heat sink 11 is installed vertically with a heat sink blade for dissipating heat generated by the thermoelectric module, the upper heat sink 12 is installed horizontally with the heat sink blades and the lower heat sink 11 and the upper A heat sink comprising a heat pipe 13 connecting the heat sink 12, a fin 4 (not shown) for discharging heat generated from the heat sink to the outside of the main body, and a main body 17.

FIG. 10 is a cross-sectional view taken along line B-B in FIG.

11 is a plan view schematically showing another embodiment of a cold compartment for a vehicle using a thermoelectric module according to the present invention. As shown in the drawing, two vehicle cold and cold refrigerators using the thermoelectric module of the present invention are integrally formed, and each function is as described above. As above, the room can be divided into two, and the function of refrigeration and warming can be used simultaneously. That is, another embodiment of the cold storage for vehicles using the thermoelectric module according to the present invention has the function of refrigeration and refrigeration, refrigeration and warming, warming and cold or warming and warming.

The heat dissipation plate of the cold compartment for a vehicle used in the above is manufactured using the heat dissipation plate (9 or 7 of FIG. 4) described above.

12 is a rear view of FIG. 11, and FIG. 13 is a sectional view taken along the line A-A of FIG.

14 is a cross-sectional view taken along the line A-A of FIG. Another embodiment of the cold compartment for a vehicle using a thermoelectric module as shown is a lid 22, which has a groove 19 is formed to accommodate a large beverage bottle, can contain the contents made of aluminum plate The vessel 21, the heat absorbing plate 16 connected to the vessel, the thermoelectric module 14, the lower heat sink 11 vertically installed with the heat sink blades for dissipating heat generated by the thermoelectric module, and the heat sink blades are horizontally installed. A heat sink comprising an upper heat sink 12 and a heat pipe 13 connecting the lower heat sink 11 and the upper heat sink 12, a fin 4 for discharging heat generated from the heat sink to the outside of the main body; and It consists of a body 23 on which an air outlet 20 and a control system 24 are formed.

The control system has an input voltage of 10V to 30V (general small car is 12V and large car is 24V), so that it can be used in all vehicles without the need of a separate voltage regulator (adapter, etc.), and the output voltage is 13.5. It keeps constant at V and keeps constant performance even if the car voltage fluctuates. Also, it has the function of controlling the temperature of the refrigerator or the heating because it has the function of controlling the temperature of the refrigerator. It acts to enable temperature control.

The heat dissipation plate of the cold storage cabinet for a vehicle used in the present invention has a gap between the heat sink blades of 2 mm to 4 mm, and the thickness of the heat sink blades is 1 mm to 1.5 mm. The heat sink, heat sink blades and heat absorbing plate may be manufactured using aluminum, copper, and the like, which are well known to those skilled in the art.

Example

Example 1

The performance of the vehicle cold and cold storage using the thermoelectric module of the present invention was tested using one can. The size of the beverage can was 92mm long, 66mm in diameter, the ambient temperature was 28 ℃, and the initial temperature of the beverage was 33 ℃, and the voltage was 13.5V, the average value of 13V ~ 14V, which is the voltage generated in the actual vehicle. Was used. The thickness of the heat sink blades of the vehicle cold and cold storage cabinet was 1mm, the spacing of the heat sink blades were made to 2mm, using one thermoelectric module.

15 minutes after the beverage can was placed in the cold storage for a vehicle of the present invention, the temperature of the beverage was 19.1 ° C, after 30 minutes was 11.4 ° C, after 45 minutes was 6.2 ° C, and after 60 minutes was 4.5 ° C.

Table 1 shows the temperature change of the beverage can with time.

Minutes 0 5 10 15 20 25 30 35 40 45 50 55 60 Temperature (℃) 33 29.1 23.5 19.1 15.3 12.3 11.4 9.0 6.8 6.2 5.5 5.0 4.5

Example 2

Two different sizes of beverage cans (A, B) were used to test the cooling performance of the cold storage compartment for a vehicle of the present invention.

The size of the beverage can A was 92 mm in length and 66 mm in diameter. The size of the beverage can A was 133 mm in length and 53 mm in diameter. The ambient temperature was 28 ° C. and the initial temperature of the beverage was 30.5 ° C.

Beverage can A had a beverage temperature of 21 ° C. after 15 minutes, 13.6 ° C. after 30 minutes, 8.4 ° C. after 45 minutes, 4.5 ° C. after 60 minutes, and −0.1 ° C. after 90 minutes. Beverage can B had a beverage temperature of 19 ° C. after 15 minutes, 11.5 ° C. after 30 minutes, 6.2 ° C. after 45 minutes, 2.5 ° C. after 60 minutes, and −1.2 ° C. after 90 minutes. The lower the initial temperature of the beverage, the shorter the cooling time of the beverage.

Table 2 shows the temperature change of the beverage cans A and B over time.

Minutes Temperature of can A (℃) Temperature of can B (° C) 0 30.5 29.8 5 27.7 26.0 10 24.1 22.3 15 21.0 19.0 20 18.4 16.3 25 15.8 13.8 30 13.6 11.5 35 11.7 9.5 40 10.2 8.0 45 8.4 6.2 50 6.6 4.6 55 5.2 3.4 60 4.5 2.5 65 3.4 1.8 70 2.0 1.2 75 1.2 0.9 80 0.8 0.2 85 0.2 -0.1 90 -0.1 -1.2

The cold and cold refrigerator for the vehicle using the thermoelectric module of the present invention is environmentally friendly because it does not use a freon gas, and can be used as a substitute for a vehicle console box by optimizing its size because it does not use a compressor, and a vehicle using a conventional thermoelectric element by a direct cooling method. It has the effect of the invention that can significantly shorten the cooling time than the cold storage.

Claims (4)

A heat absorbing plate 1 including a temperature sensor and having a double semicircle shape to accommodate a beverage can having a diameter of 66 mm or 53 mm, respectively; Thermoelectric module 2; A heat sink 3 and a heat sink blade 9 for dissipating heat generated by the thermoelectric module; 휀 (4) for discharging the heat generated from the heat sink and the heat sink blade outside the main body; And A main body 5 on which an air outlet 10 and a cup holder 7 are formed; Cold and cold storage for vehicles using a thermoelectric module, characterized in that consisting of. Lid 18; A container 15 capable of containing contents made of an aluminum plate; A heat absorbing plate 16 connected to the container; Thermoelectric module 14; The lower heat sink 11 having the heat sink blades vertically installed to dissipate heat generated by the thermoelectric module, the upper heat sink 12 having the heat sink blades horizontally installed, and the lower heat sink 11 and the upper heat sink 12 A heat sink comprising a heat pipe 13 to be connected; 휀 (4) for discharging the heat generated from the heat sink to the outside of the main body; And Main body 17; Cold and cold storage for vehicles using a thermoelectric module, characterized in that consisting of. A lid 22 in which a groove 19 is formed to accommodate a large beverage bottle; A container 21 capable of containing contents made of an aluminum plate; A heat absorbing plate 16 connected to the container; Thermoelectric module 14; The lower heat sink 11 having the heat sink blades vertically installed to dissipate heat generated by the thermoelectric module, the upper heat sink 12 having the heat sink blades horizontally installed, and the lower heat sink 11 and the upper heat sink 12 A heat sink comprising a heat pipe 13 to be connected; 휀 (4) for discharging the heat generated from the heat sink to the outside of the main body; And A main body 23 on which an air outlet 20 and a control system 24 are formed; A vehicle cold refrigerator using a thermoelectric module, characterized in that the cooling and refrigeration, refrigerating and warming, the warm and cold, or the warm and warming function of the vehicle by using the thermoelectric module made of two integrated refrigerator. The heat sink blades 9, 11, 12 provided in the heat sink are installed at intervals of 2 mm to 4 mm, and the thickness of the heat sink blades is 1 mm to 1.5 mm. Cold and cold storage for vehicles using a thermoelectric module characterized in that.