电磁继电器温升特性的仿真研究

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Abstract When a relay is working normally, thetemperatures of its contact system, coil and the metal conductorwill be above a certain range, which will make the mechanical strength of the metal material and the dielectric strength of the insulation material reduce. And all these influences will reduce the service life of the relay greatly. Therefore, it is very necessary to analyze the heat of these components. In this paper, the simulation of electromagnetic relay temperature field is carried out by COMSOL Multiphysics finite element simulation software. By combining with experimental data, the simulation precision is guaranteed and the heat dissipation coefficient of each part is determined. This paper lays the foundation for the simulation study and proves the reliability of the simulation method.

Key words： electromagnetic relay temperature rise thermal characteristics thermal time constant steady temperature rise

Received: 23 September 2017 Published: 19 March 2018

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	Articles by authors
	Li Dan
	Zhang Dairun
	Yang Lin

Cite this article:

Li Dan,Zhang Dairun,Yang Lin. Simulationresearch on thermal analysis of electromagnetic relays[J]. Electrical Engineering, 2018, 19(3): 26-30.

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http://dqjs.cesmedia.cn/EN/Y2018/V19/I3/26

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