Title:
SPEAKER
Document Type and Number:
WIPO Patent Application WO/2022/131011
Kind Code:
A1
Abstract:
This speaker (100) comprises: a magnetic circuit (110) including a magnetic gap (111); a voice coil body (120) inserted into the magnetic gap (111); a diaphragm (130) attached to the voice coil body (120); a transmission member (150) which is disposed on a side of the magnetic circuit (110) and spaced a predetermined distance from the magnetic circuit (110), and which transmits an electric signal that is input to the voice coil body (120); and a resin housing (140) integrated with the magnetic circuit (110) and the transmission member (150), wherein the transmission member (150) includes an external exposure portion (151) and an internal exposure portion (152).
Inventors:
FUJIOKA KAZUMA
TAKEDA KENGO
ITANO TETSUSHI
TAKEDA KENGO
ITANO TETSUSHI
Application Number:
PCT/JP2021/044361
Publication Date:
June 23, 2022
Filing Date:
December 02, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04R1/06; H04R9/02; H04R9/04
Domestic Patent References:
| WO2019073948A1 | 2019-04-18 | |||
| WO2009016743A1 | 2009-02-05 | |||
| WO2013108607A1 | 2013-07-25 |
Foreign References:
| JP2002199489A | 2002-07-12 | |||
| JPH07274285A | 1995-10-20 | |||
| JP2001326998A | 2001-11-22 | |||
| JP2002354566A | 2002-12-06 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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