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Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof

A technology of bone conduction receivers and piezoelectric ceramics, which is applied to the structure of telephones, piezoelectric/electrostrictive transducers, sensors, etc., can solve the problems of sound not coming out, affected by electromagnetic fields, thick thickness, etc.

Inactive Publication Date: 2013-11-13
西安康弘新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary receivers generally adopt electric energy conversion, with complex structure and thick thickness. At the same time, there is magnetic field radiation, which will generate electromagnetic interference and be affected by electromagnetic fields. There must be a sound hole, otherwise the sound will not come out.

Method used

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  • Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof
  • Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof
  • Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof

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Experimental program
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Effect test

Embodiment Construction

[0019] like figure 1 , figure 2 As shown, the positive and negative poles of the multilayer piezoelectric ceramic bimorph 1 are led out by wires 2 , which is the vibrator 3 . Installed on the mobile phone screen 5, or on the bluetooth earphone casing, realizes the bone conduction receiver function.

[0020] like image 3 As shown, the piezoelectric ceramic bone conduction receiver vibrator cantilever installation structure: one end of the vibrator 3 is 1 / 3 to 1 / 2 in length, fixed on the mobile phone screen 5 with double-sided adhesive 4 or other spacers, and the other end is suspended in the air. 0.5~1.0mm.

[0021] like Figure 4 As shown, the middle support installation structure of the piezoelectric ceramic bone conduction receiver vibrator: fix the 1 / 3~1 / 2 length of the middle section of the vibrator 3 on the mobile phone screen 5 with double-sided adhesive 4 or other pads, and hang the two ends in the air. Height 0.3 ~ 1.0mm.

[0022] like Figure 5 As shown, the ...

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Abstract

The invention provides a piezoelectric ceramic bone-conduction receiver vibrator and a mounting structure thereof. The vibrator is composed of multi-layer piezoelectric ceramic bimorphs and leading-out wires. Electric audio signals are directly converted into mechanical vibration signals through a piezoelectric ceramic vibrator in a piezoelectric ceramic energy conversion mode, vibration is transmitted and sound is made by the aid of a mobile phone screen, a bluetooth headset casing and the like, and the bone-conduction receiver function is achieved. The vibrator is applied to a mobile phone or a bluetooth headset to serve as a bone-conduction receiver for achieving electric-acoustic energy conversion. The vibrator has the advantages of being simple in structure, small in thickness and free of magnetic field radiation and needing no sound outlet. Besides, the conversation voice is clear, clear conversation can be achieved in the noise environment, and an anti-noise purpose is achieved; sound outlets are not required, and a water-proof function can be easily achieved; meanwhile, the bone-conduction function has a hearing aiding effect, so that audio vibration can be transmitted to auditory nerves through the skull for the hearing handicapped, and sounds are heard.

Description

technical field [0001] The invention belongs to the technical field of electroacoustic transducers, and in particular relates to a vibrator for a piezoelectric ceramic bone conduction receiver. Background technique [0002] Piezoelectric ceramic bone conduction receiver vibrator is a device that converts electrical signals into vibration and sound signals through the inverse piezoelectric effect of piezoelectric ceramics to realize the function of a receiver. [0003] Using the piezoelectric ceramic bone conduction receiver, there is no need to open a sound hole on the mobile phone screen. Ordinary receivers generally use electric energy conversion, with complex structures and thick thickness. At the same time, there are magnetic field radiation, which will generate electromagnetic interference and be affected by electromagnetic fields. There must be a sound hole, otherwise the sound will not come out. Contents of the invention [0004] The purpose of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/00H04M1/03
Inventor 陈耀刚
Owner 西安康弘新材料科技有限公司
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