Vehicle rotary electric machine with a rectifier protection arrangement having a sacrificial member
AssigneeDenso Corporation
InventorHiroo Kaizu
Life of this patent
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Abstract
A rectifier protection arrangement of a vehicle rotary electric machine is disposed where conductive liquid may be splashed on thereon. The arrangement includes a positive conductor member that is connected to a positive terminal of a battery and has a higher normal electrode potential than hydrogen and an insulation member disposed in contact with a ground potential conductor member to insulate the positive conductor member, a sacrificing metal member that has a lower normal electrode potential than the positive potential conductor member is disposed between the positive conductor member and the insulation member. The sacrificing metal member has a higher electric resistance than the positive potential conductor member if oxidized.
Claims6
A vehicle rotary electric machine having a rectifier protection arrangement, said protection arrangement including a positive conductor member that has a higher normal electrode potential than hydrogen, a ground potential conductor member and an insulation member, disposed between said positive conductor member and said ground potential conductor member, for insulating said positive conductor member, wherein
- a sacrificing metal member that has a lower normal electrode potential than said positive potential conductor member is disposed in a space between said positive conductor member and said insulation member to cover a surface of said positive potential conductor member disposed in said space from said insulation member and form an oxidized layer of said sacrificing metal member when conductive liquid exists in said space, and said sacrificing metal member has a higher electric resistance than said positive potential conductor member if oxidized.
Dependencies are inferred from the claim text.