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Large-aperture voice coil with good heat dissipation performance

A heat dissipation performance and large-diameter technology, applied in the field of loudspeakers, can solve problems such as high voice coil temperature, poor heat dissipation effect, and burnt coils, so as to avoid excessive temperature, improve cooling effect, and realize automatic heat dissipation

Inactive Publication Date: 2022-04-05
安徽杰夫多媒体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, since the voice coil uses an audio current coil, when the coil is working, part of the electrical energy will be converted into mechanical energy, and the rest of the energy will be converted into thermal energy. Therefore, the voice coil will generate a lot of heat after working for a long time. And for a large-diameter voice coil, the heat generated will be higher, but the voice coil is located inside the sealed basin frame, and the heat dissipation effect is poor, so the voice coil is prone to overheating, and even burns the coil

Method used

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  • Large-aperture voice coil with good heat dissipation performance
  • Large-aperture voice coil with good heat dissipation performance
  • Large-aperture voice coil with good heat dissipation performance

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as Figure 1-Figure 4 As shown, a large-diameter voice coil with good heat dissipation performance described in the embodiment of the present invention includes a skeleton 1 and a coil 2; the skeleton 1 is arranged inside the frame; the inside of the frame is fixedly connected with a permanent magnet 3; T iron 4 is fixedly connected to the inner bottom surface of the basin frame; coil 2 is wound on the surface of the skeleton 1; a sound cone 5 is provided at the top of the skeleton 1; one side end surface of the skeleton 1 An interface 6 is provided, and the other side end face of the skeleton 1 is inserted into the interior of the interface 6; the interior of the interface 6 is fixedly connected with a first elastic piece 7; the first elastic piece 7 is designed as a memory alloy material; during work, by setting The first elastic piece 7, because the first elastic piece 7 is designed as a memory alloy material, when the internal temperature of the basin frame is ...

Embodiment 2

[0041] Such as Figure 8 As shown in Comparative Example 1, another embodiment of the present invention is: elastic connecting ropes 28 are firmly connected between the ball 12 and the groove bottom of the corresponding connecting groove 10; Rope 28, when the skeleton 1 shrinks, the position of the connecting groove 10 on the surface of the skeleton 1 will change, and the coil 2 will also drive the movement of the connecting strip 11. Therefore, when the temperature drops, it is difficult for the ball 12 to quickly guide into the connecting groove 10. Internally, the skeleton 1 is connected to the connecting strip 11, and even the continuous dislocation between the connecting groove 10 and the ball 12 causes the connecting strip 11 and the skeleton 1 to fail to connect normally. Through the elastic effect of the elastic connecting rope 28, the ball 12 can be normal. Lead into the interior of the corresponding connecting groove 10 to ensure that the coil 2 and the skeleton 1 ar...

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Abstract

The invention belongs to the field of loudspeakers, and particularly relates to a large-aperture voice coil with good heat dissipation performance, which comprises a framework and a coil, the framework is arranged in the basin stand; a permanent magnet is fixedly connected to the interior of the basin frame; the inner bottom surface of the basin frame is fixedly connected with T iron; a coil is wound on the surface of the framework; a sound basin is arranged at the top of the framework; a connector is formed in the end face of one side of the framework, and the end face of the other side of the framework is inserted into the connector. A first elastic sheet is fixedly connected to the interior of the interface; the first elastic sheet is made of a memory alloy material; according to the invention, the automatic heat dissipation of the voice coil is effectively realized, when the voice coil works for a long time and a worker does not realize that the temperature of the voice coil is too high, the voice coil can be automatically accelerated to dissipate heat through the memory deformation effect of the first elastic sheet, and the problem that the temperature of the voice coil is too high, so that the loudspeaker is burnt and even open fire occurs is avoided.

Description

technical field [0001] The invention belongs to the field of loudspeakers, in particular to a large-diameter voice coil with good heat dissipation performance. Background technique [0002] The direct definition of the voice coil is the coil through which the audio current passes. It is an important part of the vibration system of the electrodynamic speaker, and it can also be said to be the heart of the speaker. For large-diameter speakers, the size of the voice coil needs to be adjusted synchronously to expand the voice coil. The diameter of the voice coil makes the vibration force of the voice coil higher to meet the sound production requirements of large-diameter speakers. [0003] The publication number is CN104053095A voice coil. This invention utilizes the difference in temperature resistance between the first layer of glue and the second layer of glue to realize the separation between the winding group and the metal skeleton. At the same time, the structure of the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/02
Inventor 蒋加星
Owner 安徽杰夫多媒体有限公司
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