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Patent Searching and Data


Title:
MOTOR AND CEILING FAN
Document Type and Number:
WIPO Patent Application WO/2024/018819
Kind Code:
A1
Abstract:
The present disclosure addresses the problem of preventing the gap between a stator and a rotor from narrowing. A motor (M1) comprises a stator (S1) and a first rotor (R1) that is rotatable with respect to the stator (S1). A gap (G1) along the rotational axis direction of the first rotor (R1) is provided between the stator (S1) and the first rotor (R1). The first rotor (R1) has permanent magnets (4), the different magnetic pole portions (40) of which are alternately arranged along the rotational direction. The stator (S1) has: a plurality of electromagnets (1) arranged along the rotational direction of the first rotor (R1); and an attachment plate (20) to which the plurality of electromagnets (1) are attached. The plurality of electromagnets (1) each have a stator core (10) and a coil (11) wound around the stator core (10). The attachment plate (20) is formed in a disk shape, and each stator core (10) of the plurality of electromagnets (1) is fixed to the surface thereof.

Inventors:
ESAKA KOICHIRO
OKADA KENJI
AKO YUYA
Application Number:
PCT/JP2023/023211
Publication Date:
January 25, 2024
Filing Date:
June 22, 2023
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02K1/18; H02K1/2798; H02K16/02; H02K21/24
Foreign References:
JP2010213508A2010-09-24
JPH08237922A1996-09-13
JPH04359660A1992-12-11
JP2008109794A2008-05-08
US20150369252A12015-12-24
JP2012010537A2012-01-12
JP2021083308A2021-05-27
JP2010246171A2010-10-28
JP2009055776A2009-03-12
JP2009011086A2009-01-15
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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