US 12,340,964 B2
Contact apparatus, electromagnetic switch, onboard charger, and new energy vehicle
Xiaokang Tian, Shenzhen (CN); Taixian Chen, Dongguan (CN); Fugao Zhao, Dongguan (CN); and Yuhan He, Dongguan (CN)
Assigned to Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 18, 2023, as Appl. No. 18/155,885.
Application 18/155,885 is a continuation of application No. PCT/CN2020/106111, filed on Jul. 31, 2020.
Prior Publication US 2023/0178320 A1, Jun. 8, 2023
Int. Cl. H01H 50/58 (2006.01); B60L 53/10 (2019.01); H01H 50/18 (2006.01)
CPC H01H 50/58 (2013.01) [B60L 53/10 (2019.02); H01H 50/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A contact apparatus that is used in an electromagnetic switch, comprising:
a base body, wherein the base body has an inner cavity;
two fixed contacts, wherein the two fixed contacts are fastened to one end of the base body at intervals and extend into the inner cavity of the base body; and
a moving contact component that comprises a pushing member and a moving contact, wherein the pushing member is movably disposed through the base body, the moving contact is mounted on the pushing member and is located in the inner cavity of the base body, the moving contact comprises N parallel contact pieces, N is an integer greater than 1; and the N parallel contact pieces are configured to be in contact with or separate from the two fixed contacts as driven by the pushing member, wherein the moving contact component further comprises:
a connection member; and
a contact elastic member; the N parallel contact pieces are all provided with a first sliding hole; the connection member is slidably disposed through the first sliding hole and is fixedly connected to the pushing member; the contact elastic member is located between the N parallel contact pieces and the pushing member; and the N parallel contact pieces are capable of moving towards or away from the fixed contacts relative to the pushing member.