New energy electric car

The DC contactor for electric vehicles is characterized by its high operating voltage, which is almost 20 times higher than the 24 V that is commonly used in automotive applications. It is difficult to extinguish the arc when the operating voltage is higher than 250 V DC. After analyzing the causes of the contact failure and the malfunction of the electromechanical system in the contact system of the traditional products, the reliability design concept is used to reduce the failure rate of the contact system and improve the reliability and reliability of the electromechanical system. Finally, the design of the main components such as the main contact system with permanent blowout and arc extinguishing is put forward, in order to meet the demand of DC contactor for electric vehicles with small size and high reliability.

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