POLARIZATION-SUPPRESSING SPEAKER APPARATUS AND METHOD FOR ADJUSTING BALANCING POSITION AND COMPLIANCE OF DIAPHRAGM

Title:

POLARIZATION-SUPPRESSING SPEAKER APPARATUS AND METHOD FOR ADJUSTING BALANCING POSITION AND COMPLIANCE OF DIAPHRAGM

Document Type and Number:

WIPO Patent Application WO/2016/155341

Kind Code:

A1

Abstract:

Disclosed are a polarization-suppressing speaker apparatus, a method for adjusting the balancing position of a speaker diaphragm, and a method for adjusting the compliance of the speaker diaphragm, comprising: a vibration system, a magnetic circuit system, a housing accommodating the vibration system and the magnetic circuit system, and, a first electret layer, a second electret layer, and a third electret layer that have a uniform charge polarity. The first electret layer is attached to the vibration system. The second electret layer is attached to a first fixed part above the vibration system and arranged opposite to the first electret layer. The third electret layer is attached to a second fixed part below the vibration system and arranged opposite the first electret layer. Also, the first electret layer, the second electret layer, and the third electret layer run parallel to each other. The present invention employs an electrostatic field force to suppress polarization of the diaphragm in a vibration direction and the electrostatic field force is provided by the electret layers, thus obviating the need for an external excitation signal, allowing a simple assembly process, and providing a great suppression effect.

Inventors:

SHAO MINGHUI (CN)
YANG JIANBIN (CN)

Application Number:

PCT/CN2015/095681

Publication Date:

October 06, 2016

Filing Date:

November 26, 2015

Export Citation:

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Assignee:

GOERTEK INC (CN)

International Classes:

H04R9/06

Foreign References:

CN204442673U	2015-07-01
CN104768111A	2015-07-08
CN104185127A	2014-12-03
CN102790937A	2012-11-21
US20140169593A1	2014-06-19
US20050276434A1	2005-12-15

Other References: