Thermoelectric air conditioning unit and thermoelectric air conditioner possessing same

Abstract

The invention discloses a thermoelectric air-conditioning unit and a thermoelectric air conditioner equipped with the unit. The thermoelectric air-conditioning unit has thermoelectric assembly, heat exchanger which has heat transfer plate, several cooling fins fixed to one side surface of the heat transfer plate, wherein another side of the heat transfer plate of the heat exchanger leans against one side surface of the thermoelectric assembly, and heat transfer water tank leans against another side surface of the thermoelectric assembly which is fastened between the heat exchanger and heat transfer water tank; on the sides of the heat exchanger and heat transfer water tank approach connected to the thermoelectric assembly, insulation thermal conductive layers are formed. The thermoelectric air conditioner has external shell in which several thermoelectric air conditioning units are arranged, and blower is also fixed in the external shell. Because the insulation thermal conductive layers, on the contact surfaces between the heat exchanger and the thermoelectric assembly and between heat transfer water tank and the thermoelectric assembly, replace original insulation thermal conductive sheet, temperature difference lost of 1 to 2 DEG C can be reduced, thus, energy efficiency ratio of the thermoelectric air-conditioning unit and the thermoelectric air conditioner equipped with the unit can be improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and more specifically relates to a thermoelectric air conditioning unit and a thermoelectric air conditioner with the thermoelectric air conditioning unit. Background technique [0002] Generally speaking, in the field of refrigeration and air-conditioning technology, thermoelectric air-conditioning is more in line with environmental protection requirements, and has low requirements for manufacturing processes. [0003] The main structure of the existing thermoelectric air conditioner includes: a thermoelectric assembly and a heat exchanger for dissipating the amount or cold energy emitted by the thermoelectric assembly to the space that needs heating or cooling. The heat exchanger is provided with a heat transfer plate. A number of fins are vertically fixed on one side of the heat transfer plate, the other side of the heat transfer plate of the heat exchanger is in close contact with on...

AI Technical Summary

Problems solved by technology

Among them, since the thermoelectric assembly is composed of a thermoelectric element and a deflector, when cooling (heating), the current flows into the thermoelectric element through the deflector, and each pair of thermoelectric elements forms a corresponding cold end and a hot end, so the heat When the exchanger and the heat transfer tank are in contact with the thermoelectric components, there is an insulating and heat-conducting sheet between them, and in the prior art, the insulating and heat-conducting sheet is made of a ceramic plate (for the specific structure, please refer to China Patent No. CN96242510.9), however, the disadvantage of the ceramic plate is that the temperature of the thermoelectric component after cooling will have a temperature loss of 1 to 2 degrees after being transferred to the heat exchanger through the insulating heat conducting sheet, so its cooling or Low energy efficiency ratio of heat transfer, high energy consumption

When the thermoelectric air conditioner is cooling, the surface temperature of the heat sink is quite different from the air temperature, the water vapor in the air will condense into small water droplets on the surface, and the fan is located above the heat sink, that is, the direction of the wind blown by the fan The direction of the water dripping on the heat sink is the same, therefore, the condensed water drops flow out along the wind direction, which can easily cause the wind direction to be blocked

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