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Bone conduction loudspeaker, bone conduction earphone and bone conduction hearing aid

A technology of bone conduction speakers and conductive parts, applied in the field of speakers, can solve the problems of poor low-frequency sound wave in-ear effect, reduced magnet volume, unfavorable low-frequency sound wave transmission, etc., and achieve the effect of improving sound quality

Pending Publication Date: 2020-01-17
东莞市赞歌声学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current bone conduction speakers are generally worn in front of the ear through ear hoops, and are conducted to the human ear through the bone in front of the ear. After the U iron and the magnet are installed inside, the shrapnel is installed in the gap between the magnets, and the shrapnel vibrates between the shrapnel. Vibration is not conducive to the transmission of low-frequency sound waves, resulting in poor effect of low-frequency sound waves entering the ear
The current wearing method usually has a large speaker volume. If it is made miniature, the volume of the magnet will be reduced, and the sound wave transmission effect will also be deteriorated.

Method used

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  • Bone conduction loudspeaker, bone conduction earphone and bone conduction hearing aid
  • Bone conduction loudspeaker, bone conduction earphone and bone conduction hearing aid
  • Bone conduction loudspeaker, bone conduction earphone and bone conduction hearing aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Please refer to figure 1 , the present invention provides a bone conduction speaker 100, including a magnetic assembly 10, a voice coil 20, an elastic assembly 30, a conductive member 40 and a support member 50, the magnetic assembly 10 is used to provide a magnetic field, and the voice coil 20 is used to conduct electricity to Vibration is generated. The elastic assembly 30 includes a first elastic member 31 and a second elastic member 32. The first elastic member 31 and the second elastic member 32 are respectively mounted on opposite ends of the magnetic assembly 10. The voice coil 20 is electrically connected to the first elastic member. 31 or the second elastic member 32, the supporting member 50 connects the first elastic member 31 and the second elastic member 32 respectively, a magnetic gap 11 is formed between the magnetic assembly 10 and the supporting member 50, and the voice coil 20 is installed in the magnetic gap 11 . During operation, the elastic compone...

Embodiment 2

[0064] Please refer to figure 2 , the bone conduction speaker 200 described in this embodiment has basically the same structure as that of Embodiment 1, except that it does not contain a conductive block 60, the second elastic member 32 is directly bonded and electrically connected to the circuit board 21, and the second The outer edge of the elastic member 32 is provided with a protruding portion 33 protruding away from the circuit board 21 , so that a vibration space is formed between the protruding portion 33 and the voice coil 20 . This leaves enough space for the magnetic system to vibrate.

[0065] The shape of the raised portion 33 is arc-shaped or square, and the number of the raised portion 33 is one, two or more, and the plurality of raised portions 33 can be arranged continuously or at intervals. The size of the raised portion 33 can also be set as required.

[0066] For example, a plurality of arc-shaped protrusions 33 are arranged at intervals, and one or more ...

Embodiment 3

[0071] Please refer to image 3 , the bone conduction speaker 300 described in this embodiment has basically the same structure as that of the first embodiment, except that it does not contain the conductive block 60 and the circuit board 21, and the second elastic member 32 is made of hard material and built-in The circuit element, the voice coil 20 is connected to the second elastic member 32 and electrically connected to the circuit element, so that the voice coil 20 can be directly electrically connected to the second elastic member 32 . At this time, the conductive block 60 and the circuit board 21 are not required, the structure of the whole speaker is simpler and the magnetic circuit vibration can be realized.

[0072] For example, both the first elastic member 31 and the second elastic member 32 are steel sheets or plastics with built-in circuits.

[0073] Wherein, the middle part of the magnetic assembly 10 may be provided with a through hole 120, or may not be provi...

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Abstract

The invention discloses a bone conduction loudspeaker, a bone conduction earphone and a bone conduction hearing aid. The bone conduction loudspeaker comprises a magnetic assembly; a voice coil; an elastic assembly which comprises a first elastic piece and a second elastic piece, wherein the first elastic piece and the second elastic piece are installed at the two opposite ends of the magnetic assembly respectively, and the voice coil is electrically connected to the first elastic piece or the second elastic piece; a conduction piece connected to the second elastic piece; a supporting part connected with the first elastic part and the second elastic part, wherein a magnetic gap is formed between the magnetic assembly and the supporting part, and the voice coil is installed in the magnetic gap. During working, the elastic assembly and the magnetic assembly vibrate together; the bone conduction earphone or the bone conduction hearing aid comprises the bone conduction loudspeaker. The boneconduction loudspeaker provided by the invention can be made to be small in size and is beneficial to low-frequency sound wave transmission.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to bone conduction loudspeakers, bone conduction earphones and bone conduction hearing aids. Background technique [0002] Bone conduction is a sound conduction method, which converts sound into mechanical vibrations of different frequencies, and transmits sound waves through the human skull, bone labyrinth, inner ear lymph fluid transmission, screw, auditory nerve, and auditory center. Compared with the classic sound conduction method of generating sound waves through the diaphragm, bone conduction saves many steps of sound wave transmission, and can achieve clear sound reproduction in a noisy environment, and the sound waves will not affect others due to diffusion in the air . [0003] Bone conduction speaker technology is used to receive calls, and the sound waves (vibration signals) converted from electrical signals are directly transmitted to the auditory nerve through th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02H04R1/10H04R25/00
CPCH04R9/06H04R9/025H04R1/10H04R25/604H04R2460/13
Inventor 朱达云
Owner 东莞市赞歌声学科技有限公司
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