Title:
LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2024/031802
Kind Code:
A1
Abstract:
The present application provides a loudspeaker, comprising a magnetic circuit system, a frame fixed to the magnetic circuit system, and a first sound production unit and a second sound production unit which are both fixed to the frame. The magnetic circuit system comprises a magnetically conductive assembly comprising a lower clamping plate and a magnet assembly located on the lower clamping plate; a third magnetically conductive member of the magnetically conductive assembly surrounds the magnet assembly, a first magnetically conductive member and a second magnetically conductive member; a first voice coil and a second voice coil are respectively located in the magnetic gaps between the third magnetically conductive member and the second magnetically conductive member and between the third magnetically conductive member and the first magnetically conductive member. The two sound production units share the magnetic circuit system, thereby reducing the production costs of the loudspeaker. The frame comprises a first main body part and a second main body part which are coaxially arranged and connected to each other, a first diaphragm is fixed to the second main body part, and a second diaphragm is fixed between the first main body part and the second main body part, so that the first sound production unit and the second sound production unit produce sound coaxially on the same surface, thereby improving the acoustic performance of the loudspeaker. In addition, the two sound production units share one frame, thereby reducing the production costs of the loudspeaker.
Inventors:
ZHANG FAN (CN)
JIN XIN (CN)
SONG WEI (CN)
JIN XIN (CN)
SONG WEI (CN)
Application Number:
PCT/CN2022/121972
Publication Date:
February 15, 2024
Filing Date:
September 28, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/04; H04R9/02; H04R9/06
Domestic Patent References:
| WO2022000577A1 | 2022-01-06 |
Foreign References:
| CN114390407A | 2022-04-22 | |||
| CN213938315U | 2021-08-10 | |||
| CN214101766U | 2021-08-31 | |||
| CN205793302U | 2016-12-07 |
Attorney, Agent or Firm:
UNI-INTEL PATENT AND TRADEMARK LAW FIRM (CN)
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