Contactor bounce feature calculation method considering structural thermal field effect
A characteristic calculation, contactor technology, applied in the direction of calculation, instrument, special data processing application, etc., can solve the problem of increased heat generation, complex multi-physics coupling motion state and bounce characteristics of contactors, and no multi-physics involved in the action process. Coupling to solve problems such as dynamic characteristics
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[0133] The structure profile of the contactor is as figure 1 . The relevant parameters of the contactor are: room temperature 20°C, stroke 2.68mm, opening distance 1.7mm, moving contact mass 7g, armature mass 9g, connecting rod mass 4g, coil current 0.7A, coil resistance 40Ω, overtravel spring preload 7N, The stiffness of the overtravel spring is 13N / m, the preload of the return spring is 6N, and the stiffness of the return spring is 0.37N / m.
[0134] The calculation process is as follows:
[0135] (1) Establish the thermal field module of the contactor according to the operation steps of the thermal field module, figure 2 A area;
[0136] (2) Establish the electromagnetic module of the contactor according to the operation steps of the electromagnetic module, figure 2 Area B;
[0137] (3) Establish the contactor vibration and collision module according to the operation steps of the vibration and collision module, figure 2 C area;
[0138] (4) According to the operati...
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