US 11,670,901 B2
Electrical contact device and rotating electric machine including the electrical contact device
Shingo Shimizu, Kariya (JP); Takahiro Nozu, Kariya (JP); Yoshihiro Adachi, Kariya (JP); and Tetsuya Honda, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Oct. 18, 2019, as Appl. No. 16/657,097.
Claims priority of application No. JP2018-198129 (JP), filed on Oct. 22, 2018; and application No. JP2019-166599 (JP), filed on Sep. 12, 2019.
Prior Publication US 2020/0127427 A1, Apr. 23, 2020
Int. Cl. H01R 39/02 (2006.01); H02K 13/06 (2006.01); H02K 13/10 (2006.01); H01H 50/54 (2006.01); H01R 39/20 (2006.01); H01R 39/26 (2006.01); H01R 39/46 (2006.01); H01R 39/04 (2006.01)
CPC H01R 39/025 (2013.01) [H01H 50/54 (2013.01); H01R 39/04 (2013.01); H01R 39/20 (2013.01); H01R 39/26 (2013.01); H01R 39/46 (2013.01); H02K 13/06 (2013.01); H02K 13/105 (2013.01); H01H 2201/026 (2013.01); H01H 2201/038 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrical contact device comprising:
a first electric potential-side contact; and
a second electric potential-side contact having a lower electric potential than the first electric potential-side contact,
wherein
the first electric potential-side contact and the second electric potential-side contact are configured to be brought into and out of contact with each other,
at least one of the first electric potential-side contact and the second electric potential-side contact is formed of zinc or a mixed material that contains zinc, but no copper, and
a percentage content of zinc in the mixed material is greater than or equal to 25% by weight.