Brushless motor and electric pump
AssigneeAisan Kogyo Kabushiki Kaisha
InventorAtsushi Sugimoto
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Abstract
A brushless motor comprises a rotor and a stator comprising a plurality of core plates laminated on one another. The core plates include a plurality of teeth portions. The plurality of core plates includes a first core plate and a second core plate, a combination of magnetic resistances of the teeth portions of the first core plate being adjusted at a first condition, and a combination of magnetic resistances of the teeth portions of the second core plate being adjusted at a second condition. Magnetic resistances of magnetic paths formed by the plurality of laminated teeth portions are adjusted to be same by adjusting a ratio of a number of the first core plates to a number of the second core plates.
Claims5
A brushless motor comprising:
- a rotor;
- and
- a stator disposed outside of the rotor, the stator comprising a plurality of core plates laminated on one another;
- wherein
- each of the plurality of core plates includes a plurality of teeth portions arranged at an interval in a circumferential direction of the rotor,
- when the plurality of core plates is laminated on one another, the teeth portions of the core plates are respectively laminated on one another,
- the plurality of core plates includes a first core plate and a second core plate, a combination of magnetic resistances of the teeth portions of the first core plate being adjusted at a first condition, and a combination of magnetic resistances of the teeth portions of the second core plate being adjusted at a second condition, and
- magnetic resistances of magnetic paths formed by the laminated teeth portions are adjusted to be same by adjusting a ratio of a number of the first core plates to a number of the second core plates.
Dependencies are inferred from the claim text.