ELECTRIC MOTOR AND ELECTRIC BLOWER - PANASONIC IP MAN CO LTD

Title:

ELECTRIC MOTOR AND ELECTRIC BLOWER

Document Type and Number:

WIPO Patent Application WO/2022/202274

Kind Code:

A1

Abstract:

Provided is an electric motor capable of reducing influence of magnetic flux, which is generated by an armature winding, on a constant force spring. A magnetic motor (1) comprises: a rotor (20) having a rotation shaft (21), and a commutator (30) attached to the rotation shaft (21); a brush (40) adjacent to the commutator (30); a plurality of armature windings (22) connected to the commutator (30); a constant force spring (110); and a soft magnetic member (second bracket (102)) which is disposed between the plurality of armature windings (22) and the constant force spring (110), and shields magnetic flux generated by the plurality of armature windings (22). The constant force spring (110) is formed by a band-like plate material, and presses the brush (40) against the commutator (30).

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Inventors:

NAKANO KEISAKU
TOYA KAZUO
YOSHIOKA YUUKI
KOJIMA TAKUYA

Application Number:

PCT/JP2022/009909

Publication Date:

September 29, 2022

Filing Date:

March 08, 2022

Export Citation:

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Assignee:

PANASONIC IP MAN CO LTD (JP)

International Classes:

H02K5/00; H02K13/00; H02K23/00

Domestic Patent References:

WO2015076106A1

2015-05-28

Foreign References:

JP2000159129A	2000-06-13
JP2007253139A	2007-10-04