KR200288597Y1 - Cooling and warming device using thermoelectric element - Google Patents

Abstract

The present invention relates to a food cold and hot holding device using a thermoelectric element, and to protect food or containers from being separated from the upper surface of the heat transfer plate during the process of warming or cooling the food.

Food and cold holding device using a thermoelectric element according to the present invention, the case 100, the thermoelectric element 200 embedded in the upper surface of the case, and a power control unit 250 for controlling the power supply to the thermoelectric element ), A heat dissipation plate 230 installed under the thermoelectric element, a cooling fan 240 for dissipating the heat dissipation plate, a heat transfer plate 210 installed on the upper portion of the thermoelectric element, the case and the heat transfer plate. Insulation material 220 is installed to insulate the heat transfer plate between the and and the support frame 150 is installed to support them around the heat insulator and heat transfer plate, and the control panel 160 is installed on one side Equipped. The upper surface of the support frame is higher than the upper surface of the heat transfer plate so as to form a separation prevention block 152 which prevents the food container C placed on the heat transfer plate from being separated from the heat transfer plate.

Description

Food cold and hot keeping device using a thermoelectric element {COOLING AND WARMING DEVICE USING THERMOELECTRIC ELEMENT}

The present invention relates to a food cold / hot holding device using a thermoelectric element, and more particularly, to a food cold / hot holding device using a thermoelectric element configured to prevent food or a food bowl placed on a heat transfer plate from slipping off.

In general, in order to eat hot food while maintaining it as it is, you need to reheat the food by using a stove or microwave oven. In addition, in order to eat while keeping food that is to be eaten cold, for example, refrigerated, the food having a high temperature needs to be put back into the refrigerator to make it cold.

In consideration of this point, a food cold / hot holding apparatus using a thermoelectric element as shown in FIG. 3 has been conventionally proposed. The cold / hot holding device includes a case 10, a thermoelectric element 20 embedded in an upper surface of the case 10, a power control unit 30 for controlling power supply to the thermoelectric element 20, and a thermoelectric element 20. A heat transfer plate 22 installed on the thermoelectric element 20, a heat dissipation plate 24 disposed below the thermoelectric element 20, and a cooling fan 26 for radiating the heat dissipation plate 24. ). The thermoelectric element 20 may heat or cool the heat transfer plate 22 by performing one endothermic action and the other side of the thermoelectric element 20 according to the flow direction of the current by the power supply control unit 30. Therefore, when the container on which the food is stored on the upper surface of the heat transfer plate 22, the food may be warmed or cooled, and the food may be eaten while keeping the food warm or cold even during the meal.

However, in the food cold and hot holding device using the thermoelectric element of the structure as shown in Figure 3, the heat insulating material provided to insulate the heat transfer plate 22 between the upper surface of the case 10 and the bottom surface of the heat transfer plate 22 ( A support frame 50 is disposed to install a control panel (not shown) while supporting them around 40 and the heat transfer plate 22. The upper surface of the support frame 50 and the top surface of the heat transfer plate 22 are mutually supported. Since it is placed on the same plane, the container (from the heat transfer plate 22) is changed by the pressure change depending on the temperature difference between the air temperature between the heat transfer plate 22 and the container C and the temperature of the outside air while the food is heated or cooled. C) may escape, and there is a fear that the container (C) leaves the cold / hot holding device and spills food in the container (C). In addition, food or broth may flow down from the heat transfer plate while the food is directly heated on the heat transfer plate to make it warm or cold. Moreover, this is a serious problem, especially when used inside the automobile.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a food cold / hot holding device using a thermoelectric element which can protect the container from being detached from the upper surface of the heat transfer plate in the process of making food warm or cold.

1 is an exploded perspective view showing a food cold and hot holding device using the thermoelectric device according to the present invention.

Figure 2 is a cross-sectional view showing a state of use of food cold and hot holding apparatus using a thermoelectric device according to the present invention.

3 is a cross-sectional view showing a state of use of the food cold and hot keeping apparatus using a conventional thermoelectric element.

<Explanation of symbols for the main parts of the drawings>

100: case, 150: support frame,

152: release prevention jaw, 160: control panel

200: thermoelectric element, 210: heat transfer plate,

220: heat insulating material, 230: heat sink,

240: cooling fan, 250: power control unit,

C: container

In order to achieve the above object, the present invention, a case, a thermoelectric element embedded in the upper surface of the case, a power control unit for controlling the power supply to the thermoelectric element, and a heat sink installed in the lower portion of the thermoelectric element And a cooling fan for dissipating the heat sink, a heat transfer plate installed on the thermoelectric element, and an insulating material installed to insulate the heat transfer plate between the case and the heat transfer plate, and the heat insulating material and the heat transfer plate. In the food and cold holding device using a thermoelectric element is installed to support them around the periphery and includes a support frame on which one side of the control panel is installed: The upper surface of the support frame is a food container placed on the heat transfer plate from the heat transfer plate. Heat to form a breakaway barrier that prevents breakout Characterized in that is higher than the upper surface of the plate month.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms or words used in the present specification and claims are defined in the technical spirit of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to best describe his or her own design. It must be interpreted to mean meanings and concepts.

As shown in Figure 1 and 2, food cold and hot holding apparatus using a thermoelectric element according to the present invention, the case 100, the thermoelectric element 200 is buried in the upper surface of the case 100, and the thermoelectric A power control unit 250 for controlling the power supply to the device 200, a heat sink 230 provided below the thermoelectric element 200, and a cooling fan 240 for radiating the heat sink 230 ), A heat transfer plate 210 installed on the thermoelectric element 200, and a heat insulating material 220 installed to insulate the heat transfer plate 210 between the case 100 and the heat transfer plate 210. And, and is provided to support them around the heat insulating material 220 and the heat transfer plate 210, and also has a support frame 150 is installed on the control panel 160 on one side.

The thermoelectric element 200 may heat or cool the heat transfer plate 210 by performing one endothermic action and the other side of the thermoelectric element 200 according to the flow direction of the current by the power supply control unit 250. That is, when power is supplied to the thermoelectric element 200 by the power control unit 250 so that the upper surface of the thermoelectric element 200 is an endothermic side, the heat transfer plate 210 is cooled, and the upper surface of the thermoelectric element 200 is The heat transfer plate 210 is heated when power is supplied to the thermoelectric element 200 by the power control unit 250 so as to be a heat generating side. Accordingly, when the container C containing the food is placed on the upper surface of the heat transfer plate 210, the food may be cooled or warmed. In addition, temperature control of the heat transfer plate 210 may be performed by power control of the power control unit 250 which is feedback-controlled according to a detection signal of a temperature sensor not shown. That is, when a predetermined temperature is set by operating the control panel 160, the temperature of the heat transfer plate 210 may be adjusted by the feedback control. For example, the control panel 160 may be configured of an on / off switch 162, a temperature rising / falling setting switch 164 and 166, a setting temperature display unit 168, and the like.

According to the present invention, the air temperature between the heat transfer plate 210 and the container (C) while placing the food directly on the upper surface of the heat transfer plate 210 or put the container (C) containing the food to cool or warm the food The phenomenon that the container (C) is separated from the heat transfer plate 210 due to the pressure change according to the temperature difference between the outside air and the food and broth flows down from the heat transfer plate while the food is directly cooled on the heat transfer plate. In order to prevent the departure prevention jaw 152 that can prevent the separation of the container (C) is provided. The release prevention jaw 152 may be provided by making the upper surface of the support frame 150 higher than the upper surface of the heat transfer plate 210. In addition, the departure prevention jaw 152 is preferably formed to be inclined upward to the outside.

Therefore, even if food or the container C flows on the heat transfer plate 210, the bottom surface of the food or the container C is caught by the release prevention jaw 152 provided by the support frame 150. Since it does not leave the outside on the 210, there is no fear of food spills, as well as the heat conduction by the heat transfer plate 210 is evenly transferred to the entire bottom of the container (C) has the advantage of improving the heat transfer efficiency.

Meanwhile, in FIG. 1, reference numeral 180 is a cover, and when the upper portion of the heat transfer plate 210 and the container C is covered with the cover 180 while cooling or warming the food, the food may be quickly cooled or heated. In addition, reference numeral 110 is a connector installed at one side of the case 100 to supply external power, reference numeral 120 is a ventilation hole installed at one side of the case 100 for ventilation of air, and reference numeral 130 is a case The leg provided in the bottom face of the case 100 so that 100 may be supported.

In addition, although not shown here, in order to prevent the heat transfer plate 210 from being contaminated or water or the like penetrating into the case 100 to damage electrical components, a heat transfer plate (such as a wrap or aluminum foil may be used during use). Cut to a size suitable for 210, it is preferable to put this on the upper surface of the heat transfer plate 210 in advance and then put food on it or put a container (C) containing food to cool or warm the food.

In the cold and cold food holding apparatus using a thermoelectric element according to the present invention configured as described above, because the container (C) is not separated from the outside on the heat transfer plate 210 by the separation prevention jaw 152, the food is safely cooled or It can be heated, and this advantage is especially effective when used in automobiles.

In addition, since the container C does not deviate from the heat transfer plate 210, heat is transferred to the entire bottom surface of the container C through the heat transfer plate 210, so that the heat transfer efficiency is improved, so that food can be quickly cooled or warmed. .

Claims (1)

A case 100, a thermoelectric element 200 embedded in an upper surface of the case, a power control unit 250 for controlling a power supply to the thermoelectric element, and a heat sink 230 disposed below the thermoelectric element. ), A cooling fan 240 for dissipating the heat sink, a heat transfer plate 210 installed on the upper portion of the thermoelectric element, and a heat insulating material installed to insulate the heat transfer plate between the case and the heat transfer plate ( In the food and cold holding device using a thermoelectric element comprising a 220 and, and a support frame 150 is installed to support them around the heat insulating material and the heat transfer plate, the control panel 160 is installed on one side of the upper surface: The upper surface of the support frame is a food cold and hot holding device using a thermoelectric element, characterized in that the food or food container (C) to be placed on the heat transfer plate to form a separation prevention block (152) to prevent the separation from the heat transfer plate.