Title:
FULL FREQUENCY BAND HIGH SOUND QUALITY PLANAR RESONANT LOUDSPEAKER PROVIDED WITH SOUND BEAM AND SOUND TUNNEL
Document Type and Number:
WIPO Patent Application WO/2022/036955
Kind Code:
A1
Abstract:
A full frequency band high sound quality planar resonant loudspeaker provided with a sound beam and a sound tunnel, the loudspeaker comprising a diaphragm, which has a planar shape, an outer edge of which is combined with an outer frame of the loudspeaker by means of an elastic connector, and a middle part of which is disposed corresponding to a sound source; at least one surface of the diaphragm is provided with a first groove and a second groove, and the two grooves cross and are linked to one another, so as to divide the surface of the diaphragm into four resonance regions; the diaphragm is also provided with a sound beam assembly at the center of the same side surface provided with the two grooves, the sound beam assembly comprising a plurality of strip sound beam members, and the strip sound beam members being provided in pairs on both sides of the first groove and on both sides of the second groove; and the two grooves each form sound tunnels on the surface of the diaphragm. The present invention changes the diaphragm from the previous free vibration mode to the current standard vibration mode, and, from the perspective of vibration, resonance, and sound generation, solves the problem in which a high tone area of a planar resonant speaker is not bright and a low tone area is not thick and smooth enough. It has been proved in practice that the described improved design solution has prominent substantive features and significant technological advancement.
Inventors:
JIN HAIOU (CN)
WU NIANBO (CN)
HE XINXI (CN)
ZHU XINZHI (CN)
LI BIYING (CN)
YANG PING (CN)
WU NIANBO (CN)
HE XINXI (CN)
ZHU XINZHI (CN)
LI BIYING (CN)
YANG PING (CN)
Application Number:
PCT/CN2020/136577
Publication Date:
February 24, 2022
Filing Date:
December 15, 2020
Export Citation:
Assignee:
SUZHOU LI YUE MUSICAL INSTR CO LTD (CN)
International Classes:
H04R7/04; H04R9/06
Foreign References:
| CN111954124A | 2020-11-17 | |||
| CN103347233A | 2013-10-09 | |||
| CN209693035U | 2019-11-26 | |||
| US20100290648A1 | 2010-11-18 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD. (CN)
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