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US 7,745,964 B2Granted
Brushless motor
AssigneeAsmo Co., Ltd.
InventorsFumio Fukuno, Tatsuya Kawai, Masashi Matsuda
Life of this patent
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Abstract
In a brushless motor, a stator includes an annular core member. A rotatable shaft is placed radially inward of the core member and extends in an axial direction. A rotor is supported by the rotatable shaft. A centerpiece supports the core member and includes a center portion, which is placed radially inward of the core member. A platy vibration absorbing member connects between the core member and the center portion of the centerpiece and damps circumferential vibrations transmitted from the core member.
Claims13
A brushless motor comprising:
- a stator that includes an annular core member;
- a rotatable shaft that is placed radially inward of the core member and extends in an axial direction;
- a rotor that is supported by the rotatable shaft;
- a centerpiece that supports the core member and includes a center portion, which is placed radially inward of the core member;
- and
- a platy vibration absorbing member that connects between the core member and the center portion of the centerpiece and damps circumferential vibrations transmitted from the core member.
3 more elements
Dependencies are inferred from the claim text.