Electrical contact device and rotating electric machine including the electrical contact device
AssigneeDenso Corporation
InventorsShingo Shimizu, Takahiro Nozu, Yoshihiro Adachi, Tetsuya Honda
Life of this patent
Estimating the term…
Abstract
An electrical contact device includes a high electric potential-side contact and a low electric potential-side contact having a lower electric potential than the high electric potential-side contact. The high electric potential-side contact and the low electric potential-side contact are configured to be brought into and out of contact with each other. At least one of the high electric potential-side contact and the low electric potential-side contact is formed of a low-boiling point material whose boiling point is lower than 2562° C. or a mixed material that contains the low-boiling point material.
Claims20
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.
Dependencies are inferred from the claim text.