Loudspeaker device
A speaker and elastic device technology, applied in the field of piezoelectric speakers, can solve the problems of sharp and unpleasant sound, poor low frequency response, etc., and achieve the effect of improving the utilization rate of internal space, good sound performance and reducing height
Active Publication Date: 2013-02-27
GOERTEK INC
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Problems solved by technology
However, the current piezoelectric speakers have defects such as poor low-frequency response, sharp and unpleasant sound, and it is difficult to meet people's requirements for sound performance.
Method used
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[0018] The piezoelectric speaker of the present invention will be described in detail below with reference to the accompanying drawings.
[0019] Such as figure 1 and figure 2 As shown, the piezoelectric speaker of the present invention includes a square shell forming the outer frame of the speaker device. The square shell includes a first shell 11 and a second shell 12. The first shell 11 is provided with sound holes corresponding to the The sound outlet is provided with a diaphragm 2 . An elastic device 3 is suspended inside the second housing 12 . A piezoelectric sheet 4 is fixed on the side of the elastic device 3 close to the vibrating membrane 2 , and the elastic device 3 includes a lateral extension 31 . The elastic device 3 is provided with positive and negative conductive electrodes, and the positive and negative conductive electrodes electrically connect the piezoelectric sheet 4 with an external electronic circuit. In the piezoelectric speaker of the present in...
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The invention discloses a loudspeaker device, which comprises a shell, a vibrating diaphragm, a dome part, an elastic device and a piezoelectric plate, wherein the shell forms the external frame of the loudspeaker device and one end of the shell is open to form a sound outlet part; the vibrating diaphragm is arranged at a position of the shell corresponding to the sound outlet part; the dome part is bonded on the side of the vibrating diaphragm far away from the sound outlet part; the elastic device is suspended in the shell and is provided with positive and negative conductive electrodes; the piezoelectric plate is arranged on the side of the elastic device adjacent to the vibrating diaphragm, is supported by the elastic device and is electrically connected with the positive and negative conductive electrodes of the elastic device; and the elastic device is additionally provided with an extension part, the extension part is adjacent to one side of the vibrating diaphragm and is bonded with the dome part, and the elastic device is connected with the piezoelectric plate and the dome part. The loudspeaker device is a piezoelectric loudspeaker and has the advantages of small height and good sound performance.
Description
technical field [0001] The invention relates to the field of electroacoustics, in particular to a piezoelectric speaker. Background technique [0002] Speakers are widely used in consumer electronic products such as electronic products and home appliances. With the development of science and technology, consumer electronic products are becoming more and more perfect, people have higher and higher requirements for their appearance, and their thickness is getting smaller and smaller. At the same time, the requirements for miniaturization, thinning and sound performance of speaker devices are also increasing. Higher and higher. [0003] Compared with traditional speaker devices, piezoelectric speakers have simple structure, small size, low cost, and high electroacoustic conversion efficiency. However, the current piezoelectric speakers have defects such as poor low-frequency response, sharp and unpleasant sound, etc., and it is difficult to meet people's requirements for soun...
Claims
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Inventor 江超杨健斌
Owner GOERTEK INC