Title:
LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2020/140542
Kind Code:
A1
Abstract:
Provided is a loudspeaker, comprising a basket, and a magnetic circuit system and a vibration system arranged in the basket. The vibration system comprises a surround fixed on the basket, a dome fixed on the center of the surround, and a voice coil connected below the dome, wherein the dome comprises a first dome and a second dome stacked in sequence, the second dome comprises a body part, and a plurality of bulges extending from the body part towards the magnetic circuit system, a gap is formed between adjacent bulges, the bulge comprises a bottom surface close to the magnetic circuit system, the voice coil abuts against the bottom surface, and a leakage channel is formed between the gap and the second dome. Compared with related technology, the loudspeaker provided in the present invention can avoid the impact of unbalanced internal and external air pressures of the voice coil on the loudspeaker performance.
Inventors:
CHNE MINMIN (CN)
DI XUN (CN)
ZHAO BIN (CN)
DI XUN (CN)
ZHAO BIN (CN)
Application Number:
PCT/CN2019/110744
Publication Date:
July 09, 2020
Filing Date:
October 12, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R7/12; H04R9/06
Foreign References:
| CN209390306U | 2019-09-13 | |||
| CN206302555U | 2017-07-04 | |||
| CN201742543U | 2011-02-09 | |||
| JP5309811B2 | 2013-10-09 | |||
| CN109040906A | 2018-12-18 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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