CN201515489U

CN201515489U - Electromagnetic-type bone-conduction receiver

Info

Publication number: CN201515489U
Application number: CN2009200349341U
Authority: CN
Inventors: 桑志明; 贾天竺; 袁晓云
Original assignee: Shaanxi Fenghuo Hongsheng Science & Technology Co Ltd
Current assignee: Shaanxi Fenghuo Hongsheng Science & Technology Co Ltd
Priority date: 2009-09-22
Filing date: 2009-09-22
Publication date: 2010-06-23
Anticipated expiration: 2019-09-22

Abstract

The utility model relates to an electromagnetic-type bone-conduction receiver which comprises a shell (1) and a cover (2), wherein the shell (1) is internally fixed with a lower pole piece (3) which is provided with magnetic steel (4) and a coil (5); an upper pole piece (6) is fixed on a vibrating reed (7) and is positioned above the magnetic steel (4); and the vibrating reed (7) is fixed on the shell (1). The electromagnetic-type bone-conduction receiver utilizes the sound conduction characteristic of human body bones for sound conduction. When in use, the receiver is arranged on the cheekbone in front of ears, the ears are completely exposed in the environment sound field, sound signals generated by a communication device are converted into mechanical vibration signals by the receiver and then directly transmitted into the skull of human body, and the mechanical vibration signals are transmitted into the brain through cochlea. Therefore, the eardrum is directly exposed in the sound field and receives the information transferred by air vibration at any time, and the communication information is transferred by the skull, so that the communication and the environment information are not missed.

Description

Electromagnetic type bone conduction telephone receiver

Technical field

The utility model relates to a kind of electromagnetic type bone conduction telephone receiver.

Background technology

The receiver that is used for various communication equipments at present is air-conduction type, promptly by air transmitted acoustic pressure is acted on acceptor's the ear-drum, and by ear bones, the cochlea of ear-drum by the people, sound imports people's brain into the most at last.The subject matter of air-conduction type receiver is: it must be buckled on the auricle (earphone) during use or get lodged in duct mouth (earplug), like this, when the people puts on earphone or earplug, just can not listen attentively to effectively, analyze acoustic information, make some should hear that the service condition that must understand environmental information of living in again from the communication equipment voice signal can not satisfy from surrounding environment.

Summary of the invention

The technical problem that the utility model solves: design a kind of electromagnetic type bone conduction telephone receiver, utilize skeleton that the transport properties of sound is carried out sound conduction.During use receiver is placed on the cheekbone of people's ear the place ahead, allow people's ear all be exposed in the environment sound field, the acoustical signal that communication equipment sent is converted into mechanical oscillation signal by receiver and directly passes skull in the people, imports cochlea into by skull and enters brain then.People's ear-drum is directly exposed in the environment sound field like this, the information of accepting air vibration at any time and being transmitted, and the communication information has solved the problem that communication and environmental information are neglected neither then by the skull transmission.

Technical solution of the present utility model: a kind of electromagnetic type bone conduction telephone receiver, comprise housing (1) and lid (2), housing (1) internal fixation has following pole shoe (3), magnet steel (4) and coil (5) are housed on the following pole shoe (3), last pole shoe (6) is fixed on the vibrating reed (7), and making pole shoe (6) be positioned at the top of magnet steel (4), vibrating reed (7) is fixed on the housing (1).

Described pole shoe (3) down is fixed on the bottom of housing (1), and coil (5) is on following pole shoe (3), and magnet steel (4) is sleeved on the coil (5).

Be shaped on pillar (8) in the described housing (1), vibrating reed (7) is fixed on the upper end of pillar (8).

Be shaped on line hole (9) on the described housing (1).

Advantage that the utility model compared with prior art has and effect:

1, the technical indicator that reaches:

A. impedance: 600 ± 30% Ω (1000Hz).

B. frequency sweep sensitivity: 〉=78dB/ref 1 μ N (200Hz～4000Hz).

C. in frequency response: 200Hz～4000Hz scope, frequency response curve should meet the shape of product standard defined, and resonance frequency should be in the scope of 900Hz ± 15%.

D. rated power: 10mW.

E. the limit is not damaged power: 100mW.

2, result of use: the utility model is used for the bone conduction formula electrophone group of our company, through repeatedly with the communication equipment joint-trial, communication effect is preferable, and can liberate user's ears, make it can pick up other acoustic informations in the environment, solved the problem that communication and environmental information are neglected neither.

3, the utility model adopts all-sealed structure, and is waterproof, dustproof, anti-salt fog.Ability with good anti-adverse environment.

Description of drawings

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is a magnetic circuit schematic diagram of the present utility model,

Fig. 3 is the structural representation of the utility model vibrating reed,

Fig. 4 is a contour structures schematic diagram of the present utility model,

Fig. 5 is the structural representation of a kind of embodiment of the utility model.

Embodiment:

1,2,3,4,5 a kind of embodiment of the present utility model is described in conjunction with the accompanying drawings.

A kind of electromagnetic type bone conduction telephone receiver comprises housing (1) and lid (2), and following pole shoe (3) is fixed on the bottom of housing (1), and coil (5) is on following pole shoe (3), and magnet steel (4) is sleeved on the coil (5).Be shaped on pillar (8) in the housing (1), vibrating reed (7) is fixed on the upper end of pillar (8).Last pole shoe (6) is fixed on the vibrating reed (7), and makes pole shoe (6) be positioned at the top of magnet steel (4).Be shaped on line hole (9) on the housing (1).

The structure that the utility model adopts interchange magnetic circuit and dc circuit magnetic loop to go the same way, select for use aluminium nickel cobalt 5 to make magnet steel as permanent magnet with certain permeability, pole shoe and following pole shoe are as magnetic conductor in the higher iron-nickel alloy 1j50 making of permeability, ensureing higher gap flux density value, and make it be operated in best operating point by magnetic circuit size reasonable in design.

Pole shoe plays movable magnetic pole on the utility model in magnetic circuit, works to increase the weight of quality again in vibrational system.The special shape of vibrating reed and the suitable weight of last pole shoe, make vibrational system be in the quality control state below the resonance frequency at it, and be different from common receiver vibrating diaphragm, make vibrational system not have the function of acoustic radiation substantially, but the vibrational energy major part is passed in the receiver housing, cause the body vibration of housing.

Operation principle: when leading to an alternating current in the coil, just there is an alternating magnetic field to add thereon on the permanent magnetic field in the magnetic circuit, magnetic field intensity in the magnetic circuit is changed up and down on the basis of field intensity when static former, the variation of magnetic field intensity, magnetic circuit is changed along with the variation of alternating current direction the suction of vibrating reed, like this, vibrating reed has produced the vibration identical with the alternating current frequency because of being subjected to suction.The signal of telecommunication so has been converted into force signal.The vibration of vibrating reed can cause the body vibration of product shell, and product closely contacts with the human skull during use, and our brain is just directly imported in the vibration of acoustical signal into through skull, realized the reception to acoustical signal.People's ear-drum is directly exposed in the environment sound field like this, the information of accepting air vibration at any time and being transmitted, and the communication information has solved the problem that communication and environmental information are neglected neither then by the skull transmission.

Claims

1. electromagnetic type bone conduction telephone receiver, comprise housing (1) and lid (2), it is characterized in that: housing (1) internal fixation has following pole shoe (3), magnet steel (4) and coil (5) are housed on the following pole shoe (3), last pole shoe (6) is fixed on the vibrating reed (7), and making pole shoe (6) be positioned at the top of magnet steel (4), vibrating reed (7) is fixed on the housing (1).

2. electromagnetic type bone conduction telephone receiver according to claim 1 is characterized in that: described pole shoe (3) down is fixed on the bottom of housing (1), and coil (5) is on following pole shoe (3), and magnet steel (4) is sleeved on the coil (5).

3. electromagnetic type bone conduction telephone receiver according to claim 1 is characterized in that: be shaped on pillar (8) in the described housing (1), vibrating reed (7) is fixed on the upper end of pillar (8).

4. according to claim 1 or 2 or 3 described electromagnetic type bone conduction telephone receivers, it is characterized in that: be shaped on line hole (9) on the described housing (1).