Vibration system in voice coil structure and loudspeaker
A technology of voice coil and voice coil skeleton, which is applied in the field of speaker vibration system and voice coil structure, can solve the problems of separation of diaphragm and structure, deformation of diaphragm at high temperature, deterioration of acoustic distortion performance of speaker, etc., to ensure heat dissipation performance, Prevent high temperature deformation, good heat insulation effect
Active Publication Date: 2016-11-30
GOERTEK INC
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Problems solved by technology
[0003] As miniature speakers have higher and higher requirements for full-frequency performance, the voice coil design with an integrated metal structure can well expand the high-frequency performance, but under high-intensity and long-term reliability tests, the voice coil has The high temperature will be conducted through the structure, which will cause high-temperature deformation of the diaphragm, resulting in poor acoustic distortion performance of the speaker; if the structure is at a higher temperature for a long time, it will soften the glue bonding the diaphragm and the structure, and it will easily appear. The problem of diaphragm and structure separation
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[0021] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0022] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0023] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.
[0024] In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...
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The invention discloses a vibration system in a voice coil structure and a loudspeaker. A voice coil skeleton comprises a heat conduction layer forming a side wall part and a top part and arranged on the inner side, a thermal insulation layer arranged on the outer side, and a bonding layer used for bonding the heat conduction layer and the thermal insulation layer. The heat conduction layer comprises a first heat conduction layer part arranged on the side wall part and a second heat conduction layer part arranged on the top part. The thermal insulation layer comprises a first thermal insulation layer part arranged on the side wall part and a second thermal insulation layer part arranged on the top part. The voice coil body is fixed on the first heat conduction layer part. According to the invention, the heat dissipation performance of the voice coil structure is ensured, the high temperature of the bonding part between a vibrating diaphragm and the structure is effectively isolated, and the vibrating diaphragm is prevented against high temperature deformation, so that long-time high-load work requirements of the loudspeaker are met, and the reliability and the stability of the loudspeaker is ensured.
Description
technical field [0001] The invention relates to the field of electroacoustics, and more specifically, relates to a voice coil structure; the invention also relates to a vibration system of a loudspeaker. Background technique [0002] The vibration system of the loudspeaker generally includes a diaphragm, a voice coil located under the diaphragm, and a voice coil structure for fixing the voice coil and combined with the lower side of the diaphragm. The voice coil structure mainly supports the voice coil to prevent deformation of the voice coil. [0003] As micro-speakers have higher and higher requirements for full-frequency performance, the voice coil design with an integrated metal structure can well expand the high-frequency performance, but under high-intensity and long-term reliability tests, the voice coil produces The high temperature will be conducted through the structure, which will cause high-temperature deformation of the diaphragm, resulting in poor acoustic dis...
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Login to View More IPC IPC(8): H04R9/04H04R9/06
CPCH04R9/046H04R9/06
Inventor 杨卓邵明辉
Owner GOERTEK INC