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Home / News / Brief Introduction Of Bimetal Temperature Switch

Brief Introduction Of Bimetal Temperature Switch

  • July 14, 2020

Existing mechanical temperature switches, most of the internal core components are made of bimetallic materials. The bimetal has been widely used in temperature switches. The bimetal is composed of two metals with different temperature expansion coefficients. At this time, an uneven distribution of internal stress will occur between the two layers of metal. This force change causes the bimetal to deform. People use this feature to make the bimetal material into different shapes to achieve jump motion.

 

The temperature switch made of this kind of bimetal has a wide range of applications, such as temperature control switches on household appliances, water dispensers, and electric kettles; overheating and overload protection on motors, motors, transformers, and lithium battery packs; in fluorescent lamps, automobile fuel Time lag on the nozzle; temperature indication on the thermometer, alarm, etc.

 

The bimetallic strip can be made into any shape you want to achieve different effects. When it is made into a butterfly shape, the bimetallic temperature switch has a sudden jump function, which is more sensitive to temperature and trips more quickly. When the current rises or the current suddenly increases, the bimetal will be heated. When the heated temperature reaches an unbearable temperature, the bimetal will flip. At this time, the circuit will be disconnected or connected, waiting for the temperature to cool to the return temperature, and flip Come back and close or open the circuit again. The miniature temperature switch can achieve within 300℃, and generally can achieve dual protection functions of temperature and current.

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