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Moving-magnetic type ultrathin telephone receiver

A receiver and moving magnet technology, applied in the field of receivers, can solve problems such as large space and occupation, and achieve the effect of improving sound quality

Inactive Publication Date: 2011-05-04
重庆华玮旭电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual production, a permanent magnetic component, such as a neodymium-iron-boron (NdFeB) magnet, occupies a large space, and the bonding of the coil and the vibrating film requires fine manual workmanship. , which has become a bottleneck restricting the organization of production by using automated production lines

Method used

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  • Moving-magnetic type ultrathin telephone receiver
  • Moving-magnetic type ultrathin telephone receiver
  • Moving-magnetic type ultrathin telephone receiver

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A moving magnet ultra-thin receiver, comprising: a housing 1 with a built-in diaphragm 2, on which a permanent magnet material powder is compounded, and on the shell wall of the housing 1 on one side of the diaphragm 2, a The planar main coil 3 and the damping hole 4 of the main voice coil are provided with a planar sounding coil 5 and a sound hole 6 as a sounding coil on the shell wall of the housing 10 located on the other side of the diaphragm 2, and the planar main coil 3 and the planar sounding coil 5 form a connection that can strengthen the total magnetic field, that is, the connection formed when the direction of the magnetic field generated by the planar main coil 3 and the planar sounding coil 5 is consistent is the connection that can strengthen the total magnetic field, Example: Such a total field enhanced connection could be: cf. figure 1 , 2, 3 or refer to Figure 7 , 8, 9, There is a solder joint protection glue 11 coating at the connecting line between ...

Embodiment 2

[0034] A moving magnet ultra-thin receiver, comprising: a housing 1 with a built-in diaphragm 2, on which a permanent magnet material powder is compounded, and on the shell wall of the housing 1 on one side of the diaphragm 2, a The planar main coil 3 and the damping hole 4 of the main voice coil are provided with a planar sounding coil 5 and a sound hole 6 as a sounding coil on the shell wall of the housing 10 located on the other side of the diaphragm 2, and the planar main coil 3 forms a connection with the planar sounding coil 5 that can strengthen the total magnetic field. Example: Such a total field enhanced connection could be: cf. Figure 4 , 5, 6 or, see Figure 10 , 11, 12.

[0035] In this embodiment, the permanent magnetic material powder is concentrated in the central area of ​​the diaphragm 2, and the casing 1 and the casing 10 are both non-ferromagnetic casings, for example: the non-ferromagnetic casing can be an engineering Plastic or non-ferrous metal, and ...

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PUM

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Abstract

The invention discloses a moving-magnetic type ultrathin telephone receiver, comprising a case which is internally provided with a vibrating diaphragm, wherein the vibrating diaphragm is compounded with permanent magnet material powder, the wall of the case arranged at one side of the vibrating diaphragm is provided with a planar primary coil being taken as a primary voice coil and a damping hole, the wall of the case at the other side of the vibrating diaphragm is provided with a planar repeating coil being taken as a repeating coil and a sound hole, and a connection capable of increasing the total magnetic field is formed between the planar main coil and the planar repeating coil. The telephone receiver has the advantages of compact structure and is convenient for automatic production, besides, the vibration mode formed in the invention is better than a common cone vibration mode.

Description

technical field [0001] The invention relates to a receiver, in particular to an ultra-thin receiver with a moving magnet double planar coil. Background technique [0002] The working principle of a common receiver is that in a magnetic field composed of a permanent magnet system, a voice coil without force is suspended, and the voice coil is bonded to a vibrating basin. The vibrating basin is generally in the shape of a cone, the small cone is bonded to the vibrating basin, and the large cone is bonded to the receiver frame. When the audio current passes through the voice coil, the current flowing on the voice coil will be affected by the ampere force in the magnetic field of the permanent magnet system, which will make the vibrating basin vibrate and produce sound. Due to the development of science and technology, the requirements for the receiver are getting higher and higher. The receiver itself must be miniaturized and ultra-thin, and it must be able to meet the needs o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/08
Inventor 吴宗汉李铠
Owner 重庆华玮旭电子有限公司
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