A power distribution unit (100) includes a housing (106), a primary contactor (102) in a primary cavity (110) of the housing, and a pre-charge assembly (104) in a secondary cavity (112) of the housing. The main contactor includes first and second fixed contacts (120), and a movable contact (122) configured to electrically connect the first and second fixed contacts in a mated position. The main contactor includes a coil assembly (140) that is energized to move the movable contact. The pre-charge assembly includes a pre-charge resistor (202) and a pre-charge switch (204) coupled to the pre-charge resistor. The power distribution unit includes a controller (240) received in the housing. The controller includes a main contactor driver (242) for powering the main contactor and a pre-charge driver for powering the pre-charge switch.
一种配电单元(100)包括外壳(106)、外壳的主腔(110)中的主接触器(102)和外壳的次腔(112)中的预充电组件(104)。主接触器包括第一和第二固定触头(120),以及配置为在配合位置电连接第一和第二固定触头的可移动触头(122)。主接触器包括线圈组件(140),其被通电以移动可移动触头。预充电组件包括预充电电阻器(202)和联接到预充电电阻器的预充电开关(204)。配电单元包括接收在外壳中的控制器(240)。控制器包括用于为主接触器供电的主接触器驱动器(242)和用于为预充电开关供电的预充电驱动器。
Power distribution unit with contactor with integrated pre-charge circuit
具有带有集成的预充电电路的接触器的配电单元
2022-04-05
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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