V2EX bimetal switch

Bimetal Switch

定义 Definition

双金属开关:利用两种热膨胀系数不同的金属片(双金属片)在温度变化时发生弯曲,从而接通或断开电路的温控开关,常用于过热保护、恒温控制与家电温控器中。

发音 Pronunciation (IPA)

/bamitl swt/

例句 Examples

The fan turns on when the bimetal switch heats up.
当双金属开关受热时,风扇会启动。

In many appliances, a bimetal switch provides reliable thermal protection by opening the circuit if the internal temperature rises too high.
在许多电器中,双金属开关通过在内部温度过高时断开电路,提供可靠的热保护。

词源 Etymology

bimetalbi-(“两个、双”)+ metal(“金属”)构成,字面意思是“双金属的”。它指由两种不同金属层压在一起形成的材料;由于两者热膨胀不同,受热会弯曲。switch 意为“开关”。合起来 bimetal switch 就是“利用双金属片热弯曲来动作的开关”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • The Art of Electronics(Horowitz & Hill):在讨论实际电路与器件应用时涉及温控与保护元件,常会提到温控开关/热保护开关等器件类型。
  • Marks’ Standard Handbook for Mechanical Engineers:在工程材料与机电装置相关条目中常见对双金属元件与温控机构的介绍。
  • ASHRAE Handbook(暖通空调工程手册):在控制与保护部件的语境中常出现与温控开关相关的术语与应用场景。
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