KR200167101Y1 - Cold-hot storage fixtures - Google Patents

Abstract

The present invention relates to a cold and cold storage using a thermoelectric element, and more specifically, to provide a plurality of compartments divided into one storage compartment as a refrigerator, the other storage compartment as a different storage cell, the thermoelectric element is provided in each storage It is related to the cold and hot storage that can be stored at the same time, combined with a single heat sink to maximize the cooling efficiency.

The present invention can maximize the convenience of use by providing the refrigeration and warm storage, respectively, and by forming a heat dissipation path of the thermoelectric element for realizing cold and warm with a single heat sink, the thermoelectric elements on the cold and warm side are mutually exchanged. As the heat dissipation efficiency is improved, the refrigerator can be kept at a lower temperature and the refrigerator is able to maintain a higher temperature.

Provide a storage compartment of a closed compartment having an inner wall of a metallic material which can insulate and have high thermal conductivity, and divide the storage compartment into cold and warm storage compartments to form a plurality of compartments, and form thermoelectric elements in each compartment, respectively. It characterized in that formed by one integral heat sink.

Description

Cold and hot storage for simultaneous cold and hot storage {COLD-HOT STORAGE FIXTURES}

The present invention relates to a cold and cold storage using a thermoelectric element, more specifically, a plurality of compartments are divided into compartments, one storage compartment as a refrigerator and the other storage compartment as a different storage compartment, but each thermoelectric element provided in each storage unit is a single It is related to the cold and hot storage that can be stored at the same time, combined with the heat sink to maximize the cooling efficiency.

Generally, a refrigerator or a warmer is used to store food, medicine, and the like.

The refrigerator is generally known to form a predetermined cooling by vaporizing a refrigerant by using a refrigerant gas to absorb ambient heat and forcibly blowing air to the cooled portion to form cold air.

In the refrigerant cycle as described above, the refrigerant is liquefied at a high pressure in the condenser by the pumping action of the compressor, and the liquefied refrigerant is evaporated in the evaporator (heat absorber) through an expansion valve, and condensed again and circulated.

In the cooling apparatus accompanied with the above-mentioned refrigerant cycle, a refrigerant such as Freon gas is required, a facility for vaporizing or liquefying the refrigerant is required, and considerable structural stability is required to prevent the outflow of gas.

In a device using a refrigerant cycle, there are disadvantages such as severe noise and vibration, high power consumption, and environmental damage.

The thermoelectric element that absorbs heat or generates heat by only electric thermoelectric action has been developed long ago so that cooling and heating can be performed without using such a cooling cycle.

The thermoelectric element, when a current flows between two metals or semiconductors in contact with each other due to the Peltier effect, heat other than Joule heat is generated at one side of the junction point, and heat generated or absorbed due to absorption of heat at the other side. It is known that πI is proportional to the current applied (π is the Peltier coefficient, I is the current).

Cold and warm storage using the thermoelectric element used in the present invention is made of a compact and lightweight structure is mainly understood that it can be used to be mounted on the means of transportation, such as a car is preferable and of course, its use is not necessarily limited.

Various refrigeration and warming devices have been proposed in the related art by using the thermoelectric element as described above.

A thermoelectric element 110 is formed between the reservoir 100 having a predetermined volume, the thermally conductive metal block 102 and the heat sink 140 as shown in FIG. 1, and the surface of the metal block is fixedly coupled to an outer circumferential surface of the reservoir. It consists of

As described above, a number of proposals such as Korean Patent Publication No. 164175 and Korean Utility Model No. 94-20492 are known as prior art for forming a reservoir using a thermoelectric element.

However, according to the prior art, although it may have a function of small-capacity refrigeration or warming, the storage is limited to only one of cold and warming, and the cold heat (when cold) or heat (when refrigerated) generated in the thermoelectric element is used. ), But the heat sink is provided so that the heat dissipation to the outside as quickly as possible, but it is impossible to use more than a certain capacity due to the harm that does not effectively heat exchange with this heat sink alone.

This is because, when heat radiation is insufficient, heat backflow occurs, and this heat backflow deteriorates the characteristics of the thermoelectric element, making practical use impossible.

On the other hand, if you want to use the refrigerating and warming function at the same time by using the technique of Figure 1 may be considered to provide a plurality of cold, warming devices including the thermoelectric element to simply combine in a single housing. This is a structure developed from a single storage using the thermoelectric element 110 as shown in FIG. 2 by installing the storage 100 of the same structure in parallel to use one storage cell as a refrigerator and the other storage cell as a cold storage, In the case of forming the function at the same time, although the above disadvantages can be partially compensated for, the problem of heat dissipation remains, and heat backflow frequently occurs due to a decrease in heat dissipation ability, and thus the use environment is very limited.

The present invention has been made to solve the problems of the prior art as described above has the following object.

The present invention provides a cold storage room capable of simultaneous cold and hot storage to maximize the ease of use by providing a refrigerator and a heated storage cabinet respectively.

The present invention forms a heat dissipation path of a thermoelectric element that realizes cold and warm heat as a single heat sink, so that the thermoelectric elements of the cold and warm temperature side perform heat exchange with each other. It provides cold and cold storage that can be stored at the same time to keep the temperature higher.

The present invention provides a cold storage space capable of simultaneous cold and hot storage that can be a variable compartment of the space so that the storage space can be integrated into one space as needed.

The present invention to achieve the above object is to provide a storage compartment of a closed compartment having an inner wall of a metallic material capable of thermal insulation and fast heat conduction, and divided into a cold and warm storage cell to form a plurality of compartments, each thermoelectric element Forming each of the thermoelectric elements by the heat sink is formed by forming an integrated heat sink.

1 is a block diagram of a cold and hot storage using a conventional thermoelectric element.

Figure 2 is a configuration diagram of a cold and hot storage using another conventional thermoelectric element.

Figure 3 is a block diagram showing a cold and cold storage of the present invention.

Figure 4 is a block diagram showing a specific embodiment according to the present invention.

5 is a configuration diagram showing another embodiment of the cold and cold storage of FIG.

6 is a configuration diagram showing a modified embodiment of FIG.

7 is an exemplary view showing the temperature change of the cold and cold storage,

7A illustrates a case in which the heat sinks of the refrigerating side and the warming side are separated from each other,

Figure 7b is a case where the refrigeration side and the warm side is made of one heat sink.

** Description of symbols for the main parts of the drawing **

10 thermoelectric element 12 metal block 14 heat sink

16, 16a: storage 17: gap 17a: plate

18: heat storage pack 20a, 20b: storage room 30: enclosure

32,32a: Insulation material 34: Exhaust fan 170: Insulation plate

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the technical idea of the present invention.

As shown in FIG. 3, the present invention attaches a thermoelectric element 10 and a metal block 12 having excellent thermal conductivity to one surface of the thermoelectric element, and has a predetermined volume reservoir 16 made of a metal having excellent thermal conductivity. Are combined to form one storage chamber 20a and another storage chamber 20b that is the same as the storage chamber, and accommodates both thermoelectric elements 10 of the two storage chambers on the other side of the thermoelectric element 10. The heat sink 14 is formed integrally so as to be formed.

In the storage chambers 20a and 20b, one side is used as a refrigerator and the other side is used as a refrigerator according to a driving power application method of the thermoelectric element 10, thereby enabling the functions of refrigerating and heating.

In the case of acting as the opposite reservoir, the thermoelectric element 10 in contact with the heat sink 14 heats up when one thermoelectric element radiates heat, so that the other thermoelectric element absorbs heat, and thus heat dissipation efficiency is accelerated by mutual heat conduction. Promoted.

Thus, the substantial refrigeration temperature and warm temperature of each reservoir 16 can be effectively improved.

The configuration as a more specific embodiment based on the present invention will be described in detail with reference to FIG. 4.

By forming an enclosure (30) having an openable lid and a predetermined volume, a reservoir (16) made of an aluminum enclosure having an open top is provided in the enclosure, and thermoelectric is carried out on one side of the reservoir through a metal block (12) having excellent thermal conductivity. The storage device 20a is closely coupled to form a storage compartment 20a, and another storage compartment 20b having the same configuration is spaced apart from each other to be embedded in a plurality, and the plurality of thermoelectric elements are integrally connected to the other side of the thermoelectric element. The heat sink 14 is coupled to each other, and an exhaust fan 34 for releasing internal air is formed near the heat sink, and the enclosure and the periphery of each storage compartment are filled with a heat insulating material 32.

The present invention may be implemented as shown in FIG.

Figure 5 is a schematic diagram showing the extraction centered on the reservoir.

This is made by filling the outer periphery with a heat insulator 32 by facing the gap 17 with the bottom of the reservoir 16a having a 'c' shape with a closed bottom surface, and insulating material 32a between the two-layered aluminum plate 17a. ) To form a heat insulating diaphragm 170 formed by filling the gap 17 to be inserted or removed.

In addition, the present invention may be modified as shown in FIG.

That is, the heat storage pack 18 is built in the inner bottom surface of each of the reservoirs in case of increasing the efficiency by accumulating excess heat remaining on the cold and warmed objects to increase efficiency or by moving the short distance by separating from the power source.

The operation of the present invention constituting the technical idea as described above will be described in more detail below.

Cold storage, which can simultaneously store cold and hot storage of the present invention is formed by forming a thermoelectric element in each of the plurality of compartments (16) divided into compartments to enable cold and cold storage, so that one side and the other side of the refrigerator, respectively, cold, cold / cold, refrigerator / Selective operation is possible with several types of warming and heating. Since this is possible by a conventional technique that is easily changed according to the polarity of the power input to the thermoelectric element, detailed description thereof will be omitted.

Looking at the case in which the storage of one side of the plurality of reservoirs, the storage of the other side acts as a warmer, the storage is divided into a state that maintains a thermal insulation, respectively, so that the thermal flow between the adjacent storage is excluded and bonded to the corresponding storage By the action of the thermoelectric element, it acts as a refrigerator and a warmer.

The thermoelectric element of one side of the cellar, which is refrigerated, has an endothermic effect on one side that is interviewed with the cellar, and the other side generates heat. The thermoelectric element of the other side of the cellar generates heat, and one side of the cell that is interviewed with the cellar generates heat absorption. There is a contradictory thermal effect.

Here, the other side of each thermoelectric element is attached to the heat sink 14 integrated into one, so that the heat generation on the heat sink side of one reservoir is heat-conducted by the heat sink side of the heat sink side of the other reservoir, and heat is rapidly conducted to the heat absorption side. Since the heat dissipation is very fast, the heat dissipation efficiency of the thermoelectric element is remarkably improved, and the cold and warming efficiency is extremely improved.

The present invention made using the integrated heat sink 14 is made of a conventional heat dissipation plate is separated from the conventional, the performance is significantly improved compared to the cold, warmer provided with a plurality of reservoirs.

Looking at the experimental example by comparing the performance of the cold, warmer according to the structure of the heat sink, it will be apparent that the improvement of the cold, warming efficiency of the present invention.

Experimental Example 1

■ Experimental conditions and methods

● A separate heat sink structure in which a plurality of thermoelectric elements each form a reservoir.

● Exhaust fan for cooling heatsink is installed for forced cooling.

● A total of 8 points are selected to install the temperature sensor to measure the temperature.

● Ambient temperature 17 ℃ Humidity 35%

Duration t (min) Current (A) Temperature measurement site Heat dissipation Cold and warm storage 1C` 2H 3C 4H 5C 6H 7C 8H 0 4.2 / 4.6 17.0 17.0 17.0 17.0 18.0 18.0 18.6 18.0 5 4.0 / 3.8 30.0 18.6 29.5 18.8 7.0 78.0 10.6 55.6 10 4.0 / 3.4 30.2 19.0 29.5 19.7 6.2 87.6 9.3 67.8 15 4.0 / 3.2 29.8 18.8 29.1 20.0 5.6 94.8 8.6 76.7 20 4.0 / 3.1 30.0 19.6 29.2 20.4 5.3 98.8 8.3 81.5 Temperature change 13.0 2.6 12.2 3.4 12.7 80.8 10.3 63.5

Experimental Example 2

■ Experimental conditions and methods

● Same as Experimental Example 1

Duration t (min) Current (A) Temperature measurement site Heat dissipation Cold and warm storage 1C 2H 3C 4H 5C 6H 7C 8H 0 4.7 / 4.7 17.0 17.0 17.3 17.5 18.2 20.0 18.5 19.5 5 4.4 / 3.7 23.0 20.0 24.6 21.6 6.1 73.0 10.4 50.4 10 4.2 / 3.4 23.7 21.3 25.3 22.7 3.8 88.4 6.9 69.0 15 4.1 / 3.2 23.5 22.0 25.8 23.2 3.0 94.8 6.1 79.7 20 4.0 / 3.1 24.0 22.6 26.0 23.9 2.8 105.5 5.4 89.1 Temperature change 7.0 5.6 8.7 6.4 15.4 85.5 13.1 69.6

As in the above two experimental examples, the comparison table of the final temperature change of each type having a heat sink and a separate type is as follows.

Duration t (min) Current (A) Temperature measurement site Heat dissipation Cold and warm storage 1C 2H 3C 4H 5C 6H 7C 8H Separate temperature change 13.0 2.6 12.2 3.4 -12.7 80.8 -10.3 63.5 Integrated temperature change 7.0 5.6 8.7 6.4 -15.4 85.5 -13.1 63.5

As can be seen from the experimental example, the closer to ΔT (T1-T2) = 0, the cooling effect can be seen that the maximum value.

ΔT is the measurement instantaneous temperature, T1 is the heat absorbing part temperature, and T2 is the heat dissipating part temperature.

Therefore, it can be seen that the high emission heat of the refrigerator side is caused by the temperature difference toward the low temperature side of the warmer side, and thus the performance is improved since the heat backflow between the heat absorbing portion and the heat generating portion of the thermoelectric element is excluded.

The temperature measurement points applied to Experimental Examples 1 and 2 are as shown in Figures 7a and b, and the temperature described in the measurement points indicates the temperature value changed from the normal temperature before measurement, and the '+' sign indicates the temperature rise, The symbol '-indicates the temperature drop, keeping the refrigerator cooler and the warmer hotter.

On the other hand, the cold storage of the present invention can be stored simultaneously in the cold and hot storage, as described above, the storage of one side of the plurality of refrigerators, the other side of the test of the conditions of the warming to improve the performance and both sides of the cold storage and the refrigerating / If you look at the experiment set to the warm field as follows.

Comparative Example

■ Comparative Experimental Conditions and Methods

● Put canned beverage in each cellar and measure the temperature of the contents.

Test sample 1 is refrigerated and warmed.

Test Sample 2 is refrigerated and refrigerated.

Minutes 0 5 10 15 20 25 30 35 40 45 50 55 60 Sample 1 cold storage 20 15 13 11 10 8 7 6 5 4 3 3 3 Warmth 20 22 26 20 36 38 40 41 42 43 43 43 43 Sample 2 cold storage 20 17 14 12 10 8 6 5 3 2 One 0 -One cold storage 20 17 14 12 10 8 6 5 3 2 One 0 -One

As can be seen in the comparative example, the cold and warm storage of the present invention, in addition to the advantage that can be used at the same time cold storage, it can be seen that a faster refrigeration effect can be obtained when using a plurality of storage in the refrigerator.

As described above, when a plurality of reservoirs are simultaneously used as the same reservoir, as shown in FIG. 5, the plurality of reservoirs are inserted into the gaps 17 to close the compartments 16a and remove the insulating diaphragm 170. The storeroom becomes a unified space and can be used more widely through this expanded storage space.

Of course, if you want to separate the one side and the other side to use as a cold, warmer, the storage compartment may be partitioned by the heat insulating plate 170.

In addition, when the cold and hot storage that can be stored simultaneously in the cold and hot storage of the present invention to use to carry and move away from the power source of the car, such as easy to move and the heat storage pack 18 is sealed in the storage storage heat storage material as shown in FIG. When the power is applied to the heat storage pack when the cold air or heat is stored in the heat accumulating and the power is excluded so that the stored energy to act to maintain the cold or heat for a longer time.

According to the present invention as described in detail above, it is possible to use each season by providing refrigerated and heated storage bins at the same time to form a refrigerated and heated cabinet, and to store the stored herbal medicines in a refrigerator for a certain time while drinking Combined use, such as drinking is effective in one device,

The heat dissipation path of the thermoelectric element, which realizes cold and warm temperature, is formed by one heat sink, and the thermoelectric elements of the cold and warm side are exchanged with each other to improve heat dissipation efficiency. Since it can maintain, the efficiency is dramatically improved.

In addition, the present invention is to allow the variable compartment of the storage space into a single space as needed, if the refrigerator requires a lot of space, the entire storage space to the refrigerator, or conversely, the entire space to be used as a variable storage room as needed It is a very good design with several effects.

Claims (4)

In cold and warm storage using a thermoelectric element for refrigerating or warming the storage of a certain compartment, A storage compartment in a closed compartment having an inner wall of a metallic material which can be insulated and has high thermal conductivity, Provide a plurality of reservoirs, respectively, to form a thermoelectric element in each compartment to provide a cold, hot storage compartment, By combining the thermoelectric elements of the cold, hot storage chambers into one integrated heat sink, heat dissipation of the heat dissipating portion and the heat absorbing portion of the thermoelectric element is configured to be combined to be achieved by heat conduction in the integrated heat sink cold and hot storage possible at the same time Django. The method according to claim 1, wherein the cold and cold storage box to open and close the lid having a predetermined volume (30) to provide a reservoir 16 made of an aluminum enclosure with an upper opening in the enclosure, The storage unit 20a is formed by closely coupling the thermoelectric elements 10 to one side of the reservoir through the metal block 12 having excellent thermal conductivity, and the plurality of storage chambers 20b having the same configuration are spaced apart from each other. Built in, Combination of one heat sink 14 to connect the plurality of thermoelectric elements integrally on the other side of the thermoelectric element, Simultaneous cold and hot storage, characterized in that by forming an exhaust fan (34) for discharging the internal air in close proximity to the heat sink, the enclosure and the periphery of each storage compartment with a heat insulating material (32). The method of claim 2, wherein the reservoir is formed of a 'c' shaped reservoir (16a) with a closed bottom surface facing the gap 17, It is made by filling the outer periphery of the opposing storehouse with insulation, The insulating plate 170 formed by filling the heat insulating material 32a between the aluminum plate 17a of the multiple layers is formed to be inserted into or taken out of the gap 17 so as to variably divide or integrate the storage space. Cold and cold storage capable of simultaneous cold and hot storage. The cold / cold storage according to claim 2 or 3, wherein a heat storage pack (18) is built into an inner bottom surface of each of the cold / cold storage bins.