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US 2002/0053855 A1Published application
Alternator for vehicles having permanent magnets in rotor
AssigneeDenso Corporation
InventorsYoshiki Tan, Nakato Murata
Life of this patent
Estimating the term…
Abstract
A brushless-type alternator has a rotor, which comprises a pair of pole cores. The pole cores include a plurality of nail parts, respectively. The nail parts are arranged alternately in a rotating direction of the rotor. The nail parts are coupled to-each other with a non-magnetic ring. A permanent magnet is interposed between adjacent two of the nail parts, and fixedly held in position with the non-magnetic ring. The permanent magnets are located radially inside or outside the non-magnetic ring.
Claims12
An alternator comprising:
- a frame;
- a field coil supported fixedly to the frame;
- a pair of pole cores each having a plurality of nail parts, respectively;
- a non-magnetic ring coupling the nail parts adjacent to each other in a rotation direction of the pole cores;
- and
- a plurality of permanent magnets interposed between the nail parts and fixed to the non-magnetic ring.
3 more elements
An alternator comprising:
- a frame;
- a pair of pole cores supported rotatably in the frame and having a plurality of nail parts, respectively;
- a non-magnetic ring coupling the nail parts adjacent to each other in a rotation direction of the pole cores;
- and
- a plurality of permanent magnets interposed between the nail parts and fixed to the non-magnetic ring,
- wherein the non-magnetic ring and each of the permanent magnets have respective slit grooves which engage with each other.
3 more elements
An alternator comprising:
- a frame;
- a pair of pole cores supported rotatably in the frame having a plurality of nail parts, respectively;
- a non-magnetic ring coupling the nail parts adjacent to each other in a rotation direction of the pole cores;
- and
- a plurality of permanent magnets interposed between the nail parts and fixed to the non-magnetic ring,
- wherein each of the permanent magnets is pressed by adjacent two of the nail parts and the non-magnetic ring.
3 more elements
Dependencies are inferred from the claim text.