范文编号:ZD575 范文字数:19266,页数:42,有开题报告,任务书,文献综述 Abstract:This design settles with the main technique parameter that give, regarding CZ0 direct current contact machine as to according to, designing a contact machine。The main principle of the DC contactor:The electro-magnetism coil switches on electricity the title iron to match with the iron heart on,the vacuum force of the electromagnetism system overcomes the recoil of the spring coil arouses the action contact, the main electric circuit connect;The electromagnetism coil cuts the power the recoil of the spring coil arouses the title iron with move to open, the head contact breaks to open the output electricity arc give or get an electric shock in drive to arc-extinct-chamber and made longer,the strong cooling swims to leave but put out, the main electric circuit cuts off。The design includes three part:The design of the congtact system and the design calculation of the calculation, electromagnetism system with excellent turn, put out the design of the system of arc-extinct and calculation。 Key Words: DC contactor arc-extinct-chamber contact electromagnet 目 录 摘要 I 40A直流接触器设计相关范文 |
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