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US 9,772,203 B2Granted
Stator structure of VR type resolver and VR type resolver
AssigneeMinebea Co., Ltd.
InventorHaruki Otobe
Life of this patent
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Abstract
A stator structure and a VR type resolver, in which the winding of the resolver can be prevented from corroding without increasing the production cost, are provided. The stator structure has stator protruding portions and coils wound around the stator protruding portions, the coils consisting of exciting coils, sine phase detection coils, and cosine phase detection coils, and at least the coils wound at the outermost side are formed by wires in which conductive portions are made of aluminum.
Claims6
A stator structure of a variable reluctance (VR) type resolver used in an engine compartment, comprising
- stator protruding portions formed on a stator core;
- and
- coils wound around the stator protruding portions,
- wherein the coils consist of exciting coils, sine phase detection coils and cosine phase detection coils,
- wherein coils wound at an innermost side are formed by wires in which conductive portions are made of copper and/or copper alloys,
- wherein the coils wound at an outside of the coils wound at the innermost side are formed by wires in which conductive portions are made of aluminum and/or aluminum alloys, and
- wherein the coils wound at the innermost side have coat portions coating the conductive portions, the coat portions being made of polytetrafluoroethylene.
4 more elements
Dependencies are inferred from the claim text.