Thermoelectric refrigerating unit and method for improving refrigerating efficiency of thermoelectric refrigerating unit
A technology of thermoelectric cooler and hot arm, which is applied to the operation mode of the machine, refrigerator, refrigeration components, etc., can solve the problems of inability to achieve the cooling efficiency of traditional refrigeration devices, small cooling temperature difference between the cold end and the hot end, and low thermoelectric conversion rate, etc. problem, to achieve the effect of improving the efficiency of thermoelectric conversion and increasing the temperature difference of refrigeration
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[0019] Reference attachment figure 1 , Showing the circuit structure of the thermoelectric cooler of the present invention, including a semiconductor hot arm 1, the two ends of the semiconductor hot arm are divided into a heat-absorbing end and a heat-emitting end; the second DC power supply 8 provides a driving current through the heat-emitting end electrode 3 Connect, semiconductor hot arm 1 and endothermic electrode 2 form a loop, endothermic electrode 2 absorbs heat to become an endothermic end, exothermic end electrode 3 releases heat to form an exothermic end; heat sink 5 is connected to exothermic end electrode 3 Dissipate heat to the outside air; in order to achieve good electrical insulation and heat conduction, insulating ceramic 4 is provided between the metal heat sink and the exothermic terminal electrode for isolation, and the exothermic terminal electrode and the insulating ceramic are separated by silicone grease with good heat dissipation performance Connection,...
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