Thermal switch, temperature control structure, and battery pack

摘要

Provided are a heat switch having a simple structure capable of changing heat transfer performance depending on temperature, a temperature adjustment structure including the same, and a battery pack. The thermal switch 1 is bonded to the first protective layer 2 for receiving heat, the radiation layer 4 whose emissivity changes when the temperature changes, and the radiation switch 4 and the gap 5. The second protective layer 3 is disposed opposite to the radiation layer 4 and receives heat from the radiation layer 4. Since the emissivity of the radiation layer 4 changes as the temperature changes, in the thermal switch 1 whose emissivity increases when the temperature rises, the heat from the first protective layer 2 when the temperature is low. Is difficult to transmit to the second protective layer 3, and when the temperature is high, heat from the first protective layer 2 is easily transmitted to the second protective layer 3.