Title:
MOTOR AND CEILING FAN
Document Type and Number:
WIPO Patent Application WO/2024/018820
Kind Code:
A1
Abstract:
The present disclosure addresses the problem of inhibiting reduction in magnetic detection accuracy. A motor (M1) comprises: a stator (S1); and a first rotor that can rotate relative to the stator (S1). The first rotor has a permanent magnet in which different magnetic poles are alternately arranged along the rotation direction, and a support member that supports the permanent magnet. The stator (S1) has a plurality of electromagnets (1) arranged along the rotation direction of the first rotor, an attachment member (2) to which the electromagnets (1) are attached, and a magnetic detection unit (3) that detects magnetism of the permanent magnet. The electromagnets (1) each have a stator core (10) and a coil wound on the stator core (10). The magnetic detection unit (3) has Hall ICs (30) and a support substrate (31) that supports the Hall ICs (30). The Hall ICs (30) are disposed outside the stator cores (10) relative to the rotation center of the rotor.
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Inventors:
AKO YUYA
ESAKA KOICHIRO
OKADA KENJI
ESAKA KOICHIRO
OKADA KENJI
Application Number:
PCT/JP2023/023212
Publication Date:
January 25, 2024
Filing Date:
June 22, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02K11/215; H02K1/2798; H02K16/02; H02K21/24
Foreign References:
| US20180248454A1 | 2018-08-30 | |||
| JPH02136464U | 1990-11-14 | |||
| JPH05146133A | 1993-06-11 | |||
| JP2022052814A | 2022-04-05 | |||
| JPH0756623Y2 | 1995-12-25 | |||
| JP2008109794A | 2008-05-08 | |||
| JPH08237922A | 1996-09-13 | |||
| JPH03135353A | 1991-06-10 | |||
| JP2008295212A | 2008-12-04 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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