Title:
SPEAKER BOX
Document Type and Number:
WIPO Patent Application WO/2021/007798
Kind Code:
A1
Abstract:
Provided in the present application is a speaker box, comprising an upper shell, a lower shell cooperating with the upper shell to form an accommodating space, and a speaker unit accommodated in the accommodating space. The speaker unit comprises a basket frame, and an upper cover, a vibration system and a magnetic circuit system fixed to the basket frame, wherein the vibration system comprises a diaphragm used for vibration and sound production; the upper shell, the upper cover and the diaphragm cooperate with one another to form a front sound cavity; the lower shell, the upper shell, the upper cover and the diaphragm cooperate with one another to form a rear cavity; the rear cavity comprises a first rear cavity provided in the speaker unit, and a second rear cavity located outside the speaker unit and communicating with the first rear cavity; and the basket frame is provided with a communication hole for communicating the front sound cavity with the second rear cavity. The speaker box of the present application can balance the air pressure of the front sound cavity and the rear cavity.
Inventors:
MENG YIMING (CN)
ZHANG GUQING (CN)
ZHANG GUQING (CN)
Application Number:
PCT/CN2019/096301
Publication Date:
January 21, 2021
Filing Date:
July 17, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R1/02
Foreign References:
| CN206524922U | 2017-09-26 | |||
| CN106851506A | 2017-06-13 | |||
| CN108551638A | 2018-09-18 | |||
| CN206332841U | 2017-07-14 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYUANLIHE PATENT AND TRADEMARK FIRM (GENERAL PARTNERSHIP) (CN)
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