A robust thermoelectric device

Abstract

The invention relates to a thermoelectric device with a firm structure. The device comprises a thermoelectric device and a heat transfer part. A heat transfer member is provided between a heat sourceand the thermoelectric device. The upper and lower parts of a cavity are detachably connected through a connecting part, wherein the connection is tooth-shaped connection. A tooth-shaped part I is arranged on the bottom surface of the connecting part of the upper part of the cavity, and a tooth-shaped part II matched with the tooth-shaped part I on the bottom surface of the connecting part of theupper part of the cavity is arranged on the top surface of the connecting part of the lower part of the cavity. A phase change material is arranged in the cavity, and a plurality of bulges are arranged at the bottom close to the edge part, thereby alleviating the flowing speed of the phase-change material to a certain extent, and enabling the phase-change material flowing to the position to absorbheat slowly, so as to reduce the temperature difference between the phase-change material flowing down from the edge and the phase-change material in the center of the bottom, prevent the sputteringcaused by too large temperature difference of the phase-change material from affecting the heat transfer efficiency and damage to a heat transfer component, and prevent the phase-change material fromflowing to the edge.

Description

technical field [0001] The invention relates to a power generating device, in particular to a thermoelectric device with firm structure. Background technique [0002] With the continuous depletion of traditional energy sources such as oil and coal, which seriously restricts economic development, and the pollution of traditional energy sources is large, and produces a large amount of waste heat, waste residue, waste water, waste gas, etc., which has a serious impact on the environment and endangers the ecological environment of the earth. Nowadays, people Continuously develop new energy sources in order to replace traditional energy sources and avoid environmental impacts. New energy technologies such as solar energy and lithium batteries continue to develop and mature, and have become the main research fields of new energy sources. However, the existing technologies, including traditional energy sources and the above-mentioned new energy technologies, all have certain energy...

AI Technical Summary

Problems solved by technology

However, in some fields, the utilization rate is not high. In the prior art, in order to increase the heat transfer rate, materials with good thermal conductivity such as metal are generally directly selected, and the heat source is directly contacted with the thermoelectric device. However, metal is used to directly conduct Heat transfer, the thermal impact on the thermoelectric device is large, it may exceed the thermal capacity of the thermoelectric device in an instant, and the impact of multiple temperature changes will reduce the life of the thermoelectric device, causing waste, and the thermoelectric conversion efficiency is not high

In addition, in some fields, such as water heaters, when heated, the pressure in the insulation chamber will increase, and the temperature will increase, causing thermoelectric devices to expand with heat and contract with cold, and the thermal stress of the devices caused by thermoelectric devices under high thermal shock Increase, even cause cracks, damage the device, and affect the life of the device

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