Title:
ELECTRIC MOTOR AND ELECTRIC AIR BLOWER
Document Type and Number:
WIPO Patent Application WO/2022/215369
Kind Code:
A1
Abstract:
The present invention provides an electric motor, etc., that can stably support a rotating shaft with a single ball bearing in an electric motor having a coreless rotor. The electric motor comprises: a rotor having a rotating shaft and a coil extending in the axial direction; a commutator attached to the rotating shaft; at least one brush in sliding contact with the commutator; a brush spring for pressing at least one brush against the commutator; and one bearing that supports the rotating shaft. The bearing is a ball bearing, and the brush spring is a constant load spring.
More Like This:
| JPS5355718 | ROTARY MACHINE |
| JPS573565 | FLAT-TYPE MOTOR |
Inventors:
KOJIMA TAKUYA
TOYA KAZUO
NAKANO KEISAKU
TOYA KAZUO
NAKANO KEISAKU
Application Number:
PCT/JP2022/006726
Publication Date:
October 13, 2022
Filing Date:
February 18, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02K23/54; H02K5/173; H02K23/00
Domestic Patent References:
| WO2020255807A1 | 2020-12-24 |
Foreign References:
| JP2014054013A | 2014-03-20 | |||
| JPH0529268U | 1993-04-16 | |||
| JPS5092407A | 1975-07-23 | |||
| JP2004201374A | 2004-07-15 | |||
| JP2014036452A | 2014-02-24 | |||
| JP2010136566A | 2010-06-17 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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