Title:
FLAT SPEAKER HAVING MULTILAYER AND DUAL TRACK MOVING COIL
Document Type and Number:
WIPO Patent Application WO/2019/156398
Kind Code:
A1
Abstract:
The present invention relates to a flat speaker and, more specifically, to a flat speaker which enables the realization of a high-quality and high-capacity speaker by maximizing the number of turns of a coil and decreasing unnecessary coil lines and weight. The flat speaker having a multilayer and dual track moving coil, according to the present invention, comprises a moving coil plate which has a pair of magnetic bodies spaced apart from each other with the moving coil plate therebetween, has a moving coil with a pattern printed in the form of a printed circuit board (PCB) track, and is stacked to have an even number of layers that is at least two layers, wherein the moving coil has patterns of a first coil track and a second coil track printed on a moving coil plate of each layer, the first coil track and the second coil track each comprising a horizontal line coil and a vertical line coil, the horizontal line coil being formed by connecting a plurality of lines in parallel, and the vertical line coil being formed as a single line.
Inventors:
KIM DONG-MAN (KR)
Application Number:
PCT/KR2019/001024
Publication Date:
August 15, 2019
Filing Date:
January 24, 2019
Export Citation:
Assignee:
KIM DONG MAN (KR)
International Classes:
H04R9/04; H04R1/06; H04R9/02
Foreign References:
| KR101147904B1 | 2012-05-24 | |||
| KR20170006126A | 2017-01-17 | |||
| KR20120016395A | 2012-02-24 | |||
| KR101196295B1 | 2012-11-06 | |||
| US20180027333A1 | 2018-01-25 | |||
| KR101147904B1 | 2012-05-24 |
Other References:
See also references of EP 3751867A4
Attorney, Agent or Firm:
PARK, Yang Ho (KR)
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