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Patent Searching and Data


Title:
PHYSICAL SOUND AMPLIFYING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/199428
Kind Code:
A1
Abstract:
A physical sound amplifying device, for use in a mobile phone. A loudspeaker sound production hole is provided on the mobile phone. The physical sound amplifying device further comprises a sound amplifying sound box; the sound amplifying sound box is further provided with an air cavity channel; the air cavity channel is divided into a sound inlet cavity channel and a sound outlet cavity channel; a first end of the sound inlet cavity channel is a sound inlet, and the sound inlet is tightly attached to the loudspeaker sound production hole; one end of the sound outlet cavity channel is connected to a second end of the sound inlet cavity channel, and the other end extends in the sound amplifying sound box and penetrates through one outer wall of the sound amplifying sound box and a sound outlet is formed in the penetrated position; a throat is provided between the first end and the second end of the sound inlet cavity channel, and the area of the sound outlet is larger than that of the throat. The playback volume and the playback effect of the loudspeaker of the mobile phone can be effectively improved without supplying power by a power supply.

Inventors:
CHEN GUANG (CN)
Application Number:
PCT/CN2019/097337
Publication Date:
October 08, 2020
Filing Date:
July 23, 2019
Export Citation:
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Assignee:
CHEN GUANG (CN)
International Classes:
H04M1/60; G10K13/00
Foreign References:
CN109803048A2019-05-24
CN202889628U2013-04-17
CN202889627U2013-04-17
CN202261456U2012-05-30
CN206149349U2017-05-03
CN208299858U2018-12-28
CN202873055U2013-04-10
US20140057685A12014-02-27
Attorney, Agent or Firm:
SHENZHEN HUATENG INTELLECTUAL PROPERTY AGENT CO., LTD. (CN)
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