Bone-conduction speaker unit

A bone conduction speaker and elastic cover technology, which is applied to bone conduction transducer hearing equipment, speaker transducer fixation, sensors, etc., can solve the problems of increased manufacturing cost and insufficient reduction of sound leakage, etc. The effect of suppressing the manufacturing cost and simplifying the structure

Inactive Publication Date: 2015-08-05
TEMCO JAPAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in the case of the bone conduction speaker proposed in the past to solve this problem, the reduction of sound leakage cannot be said to be sufficient, and there is a problem that the manufacturing cost increases.

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] About the form for carrying out this invention, it demonstrates based on drawing. figure 1 is a longitudinal sectional view of the first embodiment of the bone conduction speaker unit according to the present invention, as shown therein, the bone conduction speaker unit according to the present invention includes a case 1, a bone conduction speaker body 2 assembled into the case 1, And the elastic cover 3 covering the shell 1.

[0026] For example Figure 4 As shown, the bone conduction speaker body 2 is configured as follows: a voice coil 13 is arranged to surround a center post 12 provided at the center of a yoke 11, and a pair of rod-shaped magnets 14 are fixed on both sides of the voice coil 13. 14, and the diaphragm 15 is arranged to cover the voice coil 13 and the magnets 14 and 14. Both ends of the vibrating plate 15 are screwed to upper surfaces of side walls 16 erected at both ends of the yoke 11 to be fixed. At this time, a gap is maintained between the dia...

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PUM

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Abstract

Problem: To provide a bone conduction speaker unit which can sufficiently prevent generation of sound leakage at the time of non-calling, and can be easily incorporated in a main body casing of mobile phones, and the like. Solution: A bone conduction speaker unit, being configured by incorporating a bone conduction speaker main body 2 in a housing 1, wherein an elastic plate 21 is fixed on a top face of a plate yoke 17 of the bone conduction speaker main body 2; an elastic base 22 is disposed on a rear face of a yoke 11; and an elastic cover 3 for holding a contact 5 which, upon a pressing force having been applied thereto in use, is abutted against the plate yoke 17 through the elastic plate 21 is loaded on the housing 1 with a gap "a" being held between a bottom face of the contact 5 and a top face of the elastic plate 21.

Description

technical field [0001] The present invention relates to a bone conduction speaker unit, and more specifically, to a bone conduction speaker unit that does not cause a problem of sound leakage when incorporated into a mobile phone or the like. Background technique [0002] Bone conduction speaker units are units that convert sound signals into vibrations and transmit them to the skull, etc., and are recently widely used in communication equipment such as mobile phones because they are small, lightweight, and can be used even in the presence of noise. [0003] In addition, in order to transmit the vibration of the vibrating plate constituting the bone conduction speaker to the skull, the contacts abutting against the side of the head are fixed to the vibrating plate, and in order to efficiently transmit the vibration of the vibrating plate to the contacts, the contacts spread over a large area. The range is planarly fixed to a vibrating plate (plate yoke) (WO2005 / 069586A1, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/00
CPCH04R2460/13H04R9/06H04R1/025H04R9/066H04R1/46H04R2499/11
Inventor 福田干夫
Owner TEMCO JAPAN
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