Flat film loudspeaker
A loudspeaker and flat film technology, applied in the field of loudspeakers, can solve the problems of not very broad frequency response of loudspeakers, difficulty in thin loudspeakers, and insufficient conversion efficiency, and achieve the effects of simple and reasonable structure, light weight and thin structure
Inactive Publication Date: 2009-09-30
杭州联声电子有限公司
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Problems solved by technology
[0002] Ordinary speakers are made into cone or dome shape. In order to achieve the required sound and power effects, the volume is also very large. It is difficult to meet the requirements of some small electronic devices such as mobile phones, and the materials to be used such as brackets are in the The production process is very complicated and needs to be formed at high temperature
With the emergence of flat panel speakers, this problem has been solved. The structure of a general flat panel speaker includes a voice coil and a diaphragm. A loudspeaker is disclosed, the structure of which is: a main body, the surrounding wall body has an accommodating chamber, a magnet is arranged in the accommodating chamber, a magnetic pole is arranged on the magnet, a diaphragm is arranged above the magnetic pole, the diaphragm and the voice coil Combined, the voice coil is set in the gap between the outer side of the polar plate and the housing chamber of the bracket; although the loudspeaker solves the problem of large volume of ordinary loudspeakers, its diaphragm is a ring-shaped structure with a dome structure, with a certain height , making it difficult to realize a thin speaker, and the speaker with this structure also has the problems of not very wide frequency response, increased distortion, and insufficient energy conversion efficiency
Method used
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[0018] according to figure 1 As shown, the present invention includes a bracket 1 , a yoke 2 , a magnet 3 , a substrate 4 , a planar diaphragm 5 and a cover 6 . Such as figure 2 As shown, the bracket is perforated in the middle, and the edges are sequentially retracted to form a stepped structure with a first axial annulus 7, a second axial annulus 8, a first radial annulus 9 and a second radial annulus 10 , the yoke 2 is embedded in the groove formed by the second radial annulus 10 and the second axial annulus 8, the upper end of the yoke 2 is flush with the first radial annulus 9, and the magnet 3 is arranged in the yoke In the middle position, the base plate 4 is ring-shaped, and a connecting wing 11 protrudes from the outer circle of the ring, and two connecting points 12 are arranged on the connecting wing. The base plate is arranged on the first radial ring surface 9 of the bracket 1, There is a gap on the first axial ring surface 7, the connecting wing 11 on the subs...
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The invention relates to a loudspeaker, especially a flat film loudspeaker, comprising a bracket. A yoke is arranged in the bracket. A magnet is set in the yoke. A plane diaphragm is arranged at the top part of the magnet. A protecting hood is covered on the bracket. The flat film loudspeaker is characterized in that a substrate is arranged on the bracket; the plane diaphragm is set on the substrate; an audio coil is disposed on two sides of the plane diaphragm and disposed in helical form about the center. The invention adopts the plane diaphragm formed by combining the voice coil and diaphragm and provided with audio coils at two sides, has thin structure, light weight, high efficiency, broad frequency response, small distortion, good instant operating characteristic, easy pushing and control and no phase difference of the action force. The loudspeaker has simple and reasonable structure and low manufacturing cost.
Description
technical field [0001] The invention relates to a loudspeaker, in particular to a flat membrane loudspeaker. Background technique [0002] Ordinary speakers are made into cone or dome shape. In order to achieve the required sound and power effects, the volume is also very large. It is difficult to meet the requirements of some small electronic devices such as mobile phones, and the materials to be used such as brackets are in the The process of production is very complicated, and it needs to be formed at high temperature. With the emergence of flat panel speakers, this problem has been solved. The structure of a general flat panel speaker includes a voice coil and a diaphragm. A loudspeaker is disclosed, the structure of which is: a main body, the surrounding wall body has an accommodating chamber, a magnet is arranged in the accommodating chamber, a magnetic pole is arranged on the magnet, a diaphragm is arranged above the magnetic pole, the diaphragm and the voice coil C...
Claims
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Inventor 谭乐良
Owner 杭州联声电子有限公司