| 摘要 |
A three-layered cold/hot controller comprises a semiconductor plate, a first metal plate, and a second metal plate. The semiconductor plate has a top and a bottom contact surface and connected with a power source. When the semiconductor plate is electrified, the top contact surface of the semiconductor plate forms a contact surface for decreasing temperature while the bottom contact surface of the semiconductor plate forms a contact surface for elevating temperature. The first metal plate is combined to the top contact surface of the semiconductor plate for conducting the heat between the first metal plate and the top contact surface. The second metal plate is combined to the bottom contact surface of the semiconductor plate for conducting the heat between the second metal plate and the bottom contact surface.
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