Title:
SPEAKER UNIT, ELECTRONIC EQUIPMENT AND MOBILE OBJECT DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/016254
Kind Code:
A1
Abstract:
A speaker unit comprises a frame, a diaphragm having an inner periphery and an outer periphery, and a magnetic circuit coupled to the frame. The frame includes a first support part, a second support part, a pedestal part, and a plurality of reinforcement parts. The first support part supports the outer periphery of the diaphragm, and the second support part supports the magnetic circuit. The pedestal part spreads outward from the outer periphery of the first support part. The plurality of reinforcement parts are disposed side by side in a circumferential direction of the pedestal part, and secured to the outer periphery of the first support part and the pedestal part. Each of the plurality of reinforcement parts includes a first portion having a first height with reference to the pedestal part, and a second portion having a second height lower than the first height.
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Inventors:
UEMOTO RYOUICHI
TSUCHIYA GORO
AKATSUKA MASATAKA
TSUCHIYA GORO
AKATSUKA MASATAKA
Application Number:
PCT/JP2017/022777
Publication Date:
January 25, 2018
Filing Date:
June 21, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04R9/02; B60R11/02; H04R1/00; H04R1/02
Domestic Patent References:
| WO2013161214A1 | 2013-10-31 | |||
| WO2013161214A1 | 2013-10-31 |
Foreign References:
| JP2009194742A | 2009-08-27 | |||
| JP2006345201A | 2006-12-21 | |||
| JP2009171088A | 2009-07-30 |
Other References:
See also references of EP 3471436A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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