Title:
発音デバイス
Document Type and Number:
Japanese Patent JP6862501
Kind Code:
B2
Abstract:
A speaker is provided. The speaker includes: a holder enclosed by a side wall; and a diaphragm supported by and fixed to the holder, the diaphragm being configured to vibrate and emit sound. The side wall is in a ring shape, and includes an inner side surface, an outer side surface, a bottom surface, a top surface, and an avoiding step. The outer side surface is opposite to the inner side surface. The bottom surface connects the inner side surface with the outer side surface. The top surface is opposite to the bottom surface. The diaphragm is fixed to the top surface. The avoiding step is formed by recessing from the top surface in a direction facing away from the diaphragm. The avoiding step is in a ring shape and is connected to the inner side surface or the outer side surface.
Inventors:
Gu Xiao Jiang
Application Number:
JP2019130944A
Publication Date:
April 21, 2021
Filing Date:
July 16, 2019
Export Citation:
Assignee:
AAC TECHNOLOGIES PTE.LTD.
International Classes:
H04R9/02; H04R7/04; H04R7/22
Domestic Patent References:
| JP2006352415A |
Foreign References:
| US20180070188 |
Attorney, Agent or Firm:
Hiroshi Oshino
Yutaka Nagata
Yutaka Nagata