Voice diaphragm structure and loudspeaker
A sound film and film body technology, applied in the field of speakers, can solve the problems of low sound pressure level, unfavorable coupling between the sound film and air of the micro speaker, and low electro-acoustic conversion efficiency of the micro speaker, and achieve the effect of reducing the occupied volume.
Pending Publication Date: 2021-05-25
GUOGUANG ELECTRIC
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Problems solved by technology
[0003] However, for micro-speakers, the area of the sound film is much smaller than that of conventional speakers, which is not conducive to the coupling of the sound film and air of the micro-speaker, resulting in low electro-acoustic conversion efficiency and low sound pressure level of the micro-speaker
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[0039] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...
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The invention specifically discloses a voice diaphragm structure and a loudspeaker. The voice diaphragm structure comprises at least two voice diaphragm pieces, at least two first coil bodies and at least two second coil bodies, each voice diaphragm piece comprises a voice diaphragm body, a first magnetic circuit and a second magnetic circuit, the voice diaphragm body comprises a first side face and a second side face which are oppositely arranged, the first magnetic circuit and the first side face are fixedly arranged, and the second magnetic circuit and the second side face are fixedly arranged. Every two adjacent voice diaphragm pieces are symmetrically laid, the plane of the voice diaphragm body is perpendicular to the laying direction of the voice diaphragm pieces, the voice diaphragm body is arranged between the first coil body and the second coil body, the first coil body and the second coil body are fixedly arranged, and the end of the first coil body is contained in a groove of the first magnetic circuit. The groove of the second magnetic circuit accommodates the end part of the second coil body, the first magnetic circuit can be close to or far away from the first coil body, and the second magnetic circuit can be close to or far away from the second coil body. The voice diaphragm structure is high in air coupling degree, high in electro-acoustic conversion efficiency and high in sound pressure level.
Description
technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a sound film structure and a loudspeaker. Background technique [0002] The sound film of a traditional loudspeaker is directly coupled with its surface and the air connected to it. When the sound film vibrates, it drives the air to vibrate, thereby emitting and transmitting sound. Therefore, generally speaking, the larger the sound membrane, the better the sound radiation. [0003] However, for micro-speakers, the area of the sound film is much smaller than that of conventional speakers, which is not conducive to the coupling between the sound film of the micro-speaker and the air, resulting in low electro-acoustic conversion efficiency and low sound pressure level of the micro-speaker. Among them, the electro-acoustic conversion efficiency refers to the unloss percentage of the same electrical energy converted into sound energy, and the sound pressure level refers to th...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H04R9/06H04R9/04H04R9/02H04R7/08
CPCH04R7/08H04R9/025H04R9/046H04R9/06
Inventor 魏少林
Owner GUOGUANG ELECTRIC