V2EX thermal fuse

Thermal Fuse

Definition / 释义

热熔断器;温度保险丝:一种一次性温度保护元件,当周围温度超过其额定动作温度时,内部熔断并永久断开电路,用于防止电器或电池因过热引发损坏、起火等风险(与主要针对电流的普通保险丝不同,它主要“看温度”动作)。

Examples / 例句

The hair dryer wouldn’t turn on because the thermal fuse had blown.
吹风机无法启动,因为热熔断器已经熔断了。

To reduce fire risk, the design places a thermal fuse next to the heating element so the circuit opens if ventilation is blocked and the temperature rises too high.
为降低火灾风险,设计将热熔断器安装在加热元件旁边,这样一旦通风受阻、温度过高,电路就会断开。

Pronunciation / 发音

/θrml fjuz/(美式常见:/θml fjuz/)

Etymology / 词源

  • thermal 来自希腊语词根 *therm-*(“热”),常用于与温度、热量相关的科学与工程术语。
  • fuse 在“保险丝/熔断器”义上与“熔化、熔断”的概念相关,现代电工语境中指通过熔断(或热触发结构)来切断电路的保护装置。

Related Word / 相关词

In Works / 文献与作品中的用例

  • IEC 60691, Thermal links Requirements and tests(国际电工委员会关于热熔断器/热熔断链接的核心标准文件)
  • UL 60691, Thermal Links(美国UL关于热熔断器的对应安全标准)
  • 各类家电与电源产品的维修手册/服务手册安规认证资料中常见(如电热水壶、吹风机、电饭煲、微波炉、电池组与充电器的保护设计说明)
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