Resolver and electric motor using same
AssigneeJohnson Electric International AG
InventorsXing Liu, Chengshun Du, Ning Sun, Ruifeng Qin, Yanbin Li
Life of this patent
Estimating the term…
Abstract
A resolver which includes a resolver rotor and a resolver stator. The resolver stator includes a resolver stator core, a winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket. The winding bracket includes an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector. The connector includes a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals. The cover abuts against the lead wires to secure the lead wires to connector.
Claims17
A resolver configured to be connected to a control device trough lead wires, comprising:
- a resolver rotor, and
- a resolver stator comprising a resolver stator core, a winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket, the winding bracket comprising an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector, the connector comprising a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals, the cover abutting against the lead wires to secure the lead wires to connector;
- wherein the annular portion is mounted to an axially end of the resolver stator core, the annular portion defines a plurality of recesses depressed inwardly from the peripheral surface thereof.
An electric motor comprising
- a stator,
- a rotor rotatably mounted to stator and includes a rotating shaft, and
- a resolver configured to be connected to a control device trough lead wires;
- the resolver comprising:
- a resolver rotor fixedly connected with the rotating shaft, and
- a resolver stator comprising a resolver stator core, an winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket, the winding bracket comprising an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector, the connector comprising a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals, the cover abutting against the lead wires to secure the lead wires to connector;
- wherein each conductive terminal comprises a first connecting portion coupled to one of the resolver windings, and a second connecting portion coupled to one of the lead wires, the first connecting portion and the second connecting portion are rigidly connected to each other;
- wherein the body of the connector comprises a winding side portion formed at one end of the connector adjacent to the annular portion, the winding side portion defines a plurality of grooves with glue received therein, ends of wind wires, which form the resolver windings, are attached to the winding side portion by the glue.
Dependencies are inferred from the claim text.