Title:
MAGNETIC CIRCUIT, SPEAKER UNIT, AND SPEAKER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/111676
Kind Code:
A1
Abstract:
A magnetic circuit (160) comprises a yoke (161), a first magnet (163), and a second magnet (164). The first magnet (163) is fixed to the yoke (161) in a posture in which a first magnetic pole of the first magnet (163), which is one of the N-pole and the S-pole thereof, faces away from the yoke (161). The second magnet (164) is fixed to the yoke (161) at a position laterally of the first magnet (163) and spaced apart from the first magnet (163), in a posture in which a second magnetic pole of the second magnet (164), which is the opposite pole to the first magnetic pole thereof, faces away from the yoke (161).
Inventors:
NISHIDA MASASHI
HONDA KAZUKI
HONDA KAZUKI
Application Number:
PCT/JP2020/030599
Publication Date:
June 10, 2021
Filing Date:
August 11, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04R1/02; H04R7/04; H04R9/00; H04R9/02; H04R9/04; H04R9/06
Foreign References:
| JP2011171781A | 2011-09-01 | |||
| JP2009290566A | 2009-12-10 | |||
| JPS58599A | 1983-01-05 | |||
| JP2008141570A | 2008-06-19 | |||
| JP2002118894A | 2002-04-19 | |||
| JP2006060488A | 2006-03-02 | |||
| JPH0563191A | 1993-03-12 | |||
| JPH10243491A | 1998-09-11 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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