LOUDSPEAKER - AAC ACOUSTIC TECH SHENZHEN CO LTD

Title:

LOUDSPEAKER

Document Type and Number:

WIPO Patent Application WO/2021/000095

Kind Code:

A1

Abstract:

Provided is a loudspeaker, which comprises a basin frame, a front cover, and a vibration system. The vibration system comprises a vibration diaphragm, and the vibration diaphragm is disposed between the basin frame and the front cover. The loudspeaker further comprises an adhesive layer bonded between the front cover and the vibration diaphragm. A side of the vibration diaphragm facing the front cover has a first bonding surface disposed surrounding the outer edge of the vibration diaphragm, and a side of the front cover facing the vibration diaphragm has a second bonding surface that is disposed surrounding the outer edge of the front cover and that is disposed corresponding to the first bonding surface, an uneven texture structure disposed surrounding the vibration diaphragm being formed on the second bonding surface. The adhesive layer comprises a first adhesive layer filled between the first bonding surface and the second bonding surface, and a second adhesive layer filled between the first bonding surface and the texture structure. In the present invention, the uneven texture structure is provided on the second bonding surface of the front cover, thus the amount of local adhesive between the front cover and the vibration diaphragm may be increased. As a result, the goal of deep waterproofing may be achieved, while the acoustic performance of the product is not reduced.

Inventors:

ZHANG GUQING (CN)

Application Number:

PCT/CN2019/093991

Publication Date:

January 07, 2021

Filing Date:

June 29, 2019

Export Citation:

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Assignee:

AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)

International Classes:

H04R9/06

Foreign References:

CN205622868U	2016-10-05
CN204291378U	2015-04-22
CN204231661U	2015-03-25
CN204697285U	2015-10-07
JP2018068373A	2018-05-10