Working principle of semiconductor refrigeration chip
2022/11/22
The principle of semiconductor refrigeration chip is the Peltier effect. Let's take a closer look.
1. Peltier effect means that when current passes through the circuit composed of different conductors, in addition to irreversible Joule heat, heat absorption and heat release will occur at the joints of different conductors with different current directions.
2. Semiconductor refrigeration chip is a tool for heat transfer. When there is a current in the thermocouple pair formed by a piece of N-type semiconductor material and a piece of P-type semiconductor material, heat transfer will occur between the two ends, and the heat will be transferred from one end to the other, thus generating a temperature difference to form a cold and hot end.
3. Semiconductor refrigeration chip is a kind of cooling device composed of semiconductors. It appeared around 1960. It has the advantages of high precision, long life, small size, pollution-free, both cooling and heating. It is a real green product. Compared with compressor refrigeration, semiconductor refrigeration chips are more effective and cost-effective.
The above is a brief introduction to the working principle of the semiconductor refrigeration chip.
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