Title:
COAXIAL SPEAKER
Document Type and Number:
Japanese Patent JP2023108594
Kind Code:
A
Abstract:
To provide a coaxial speaker with high internal space unification and a high magnetic circuit utilization factor.SOLUTION: A coaxial speaker 100 includes a frame, a vibration system, and a magnetic circuit system. The magnetic circuit system includes a magnetic permeable assembly 31 fixed to the frame, and a magnet steel assembly 32. The magnetic permeable assembly includes: an annular first magnetic permeable plate 311; an inner side wall 312 and an outer side wall 313 fixed to the first magnetic permeable plate and arranged at an interval; and a second magnetic permeable plate 314 fixed to one end of the inner side wall away from the first magnetic permeable plate. The magnet steel assembly includes: a first magnet steel 321 that forms a first magnetic gap while being apart from the inner side wall; and a second magnet steel 322 that forms a side wall and a second magnetic gap. The vibration system includes: a first vibration assembly 21 that includes a first diaphragm 211 and a first voice coil 212 inserted into the first magnetic gap; and a second vibration assembly 22 that includes a second diaphragm 221 and a second voice coil 222 inserted into the second magnetic gap.SELECTED DRAWING: Figure 2
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Inventors:
SHAO TAO
Application Number:
JP2022192795A
Publication Date:
August 04, 2023
Filing Date:
December 01, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD
AAC ACOUSTIC TECH SHENZHEN CO LTD
AAC ACOUSTIC TECH SHENZHEN CO LTD
International Classes:
H04R9/02; H04R1/24; H04R9/06
Domestic Patent References:
| JPS5984996U | 1984-06-08 | |||
| JP2004260662A | 2004-09-16 | |||
| JP2009100292A | 2009-05-07 | |||
| JP2009164694A | 2009-07-23 | |||
| JP3145100U | 2008-09-25 |
Foreign References:
| KR101870261B1 | 2018-06-22 | |||
| KR102268188B1 | 2021-06-23 | |||
| US20090003632A1 | 2009-01-01 | |||
| US20200107112A1 | 2020-04-02 | |||
| EP3855760A1 | 2021-07-28 | |||
| KR20040069394A | 2004-08-06 |
Attorney, Agent or Firm:
Naoya Ogyo
Hideharu Watanabe
Hideharu Watanabe