CN2447996Y

CN2447996Y - Bone-conduction telephone

Info

Publication number: CN2447996Y
Application number: CN 00226954
Authority: CN
Inventors: 桑志明; 贾天竺; 柯柏庆; 兰枫; 孙小珺
Original assignee: Fenghuo Group Co Shaanxi Prov
Current assignee: Fenghuo Group Co Shaanxi Prov
Priority date: 2000-11-03
Filing date: 2000-11-03
Publication date: 2001-09-12
Anticipated expiration: 2010-11-03
Also published as: HK1038153A2

Abstract

The utility model relates to a bone-conduction telephone in which a receiver is an air bone-conduction receiver, wherein, an annular frame is fixed at the upper end of voice coils; a vibrating head is fixed at the upper end of the annular frame; the upper end of the vibrating head extends outside the casing; an annular voice film is sheathed on the annular frame; the inner side edge of the voice film is fixed on the annular frame while the peripheral edge is fixed with the inner wall of the casing; the voice coils are positioned among annular gaps of a magnetic circuit system. In addition, the output terminal of a volume reception and circuit amplification circuit is connected with the input terminal of a power amplification circuit and the output terminal of power amplification circuit is connected with the input terminal of the bone-conduction receiver. The utility model uses an electric energy conversion principle and a double holding positioning structure. The utility model has the advantages of expanding power circuit, ensuring not only air conduction performance but also stable vibration of the vibrating head, expanding the bone-conduction band of the receiver, and having a better response within 100-8000Hz range.

Description

The bone conduction telephone set

The utility model relates to a kind of bone conduction telephone set.

Along with the develop rapidly of modern communications cause, telephone penetration rate improves day by day, and telephone communication has become the highest communication tool of people's utilization rate.Traditional telephone set all adopts the receiver of conductance mode to make those who answer hear sound, but to ear weak person, advanced age people and make telephonic people in noise circumstance, all exists and can not hear clearly or unheard problem.How to make the people in people at advanced age, ear weak person, the noise circumstance, phone can both be listened clear especially? this is a problem that urgency is to be solved, but ordinary telephone set can not well solve.

The purpose of this utility model is to design a kind of bone conduction telephone set, speech signal can be converted to mechanical oscillation, ossiculum by around pleasant passes to the brain auditory nerve, makes telephonic people can hear very clearly sound thereby make in people at advanced age, ear weak person, the noise circumstance.

The utility model design: a kind of bone conduction telephone set, by casing (1), keyboard (2), handle (3) and cable (4) constitute, be provided with dial-up circuit in the casing, the anti-side-tone circuit balancing network, send the volume amplifying circuit, volume of reception amplifying circuit and ringing circuit, be provided with transmitter (5) and receiver (6) in the handle (3), receiver (6) is led receiver for moral character, by housing (7), sound film (8), voice coil loudspeaker voice coil (9), magnetic circuit system (10), vibration head (11) constitutes, magnetic circuit system (10) is arranged on the bottom of housing (7), the upper end of voice coil loudspeaker voice coil (9) is fixed with ring support (12), the upper end of ring support (12) is fixed with vibration head (11), stretch out outside the housing (7) upper end of vibration head (11), sound film (8) is an annular, be enclosed within on the ring support (12), and its inner side edge and ring support (12) are fixing, the inwall of outer side edges and housing (7) is fixed, and makes voice coil loudspeaker voice coil (9) be arranged in the annular gap of magnetic circuit system (10); In addition, the output of volume of reception amplifying circuit is provided with power amplifier, the output of the input termination volume of reception amplifying circuit of power amplifier, and output termination moral character is led the input of receiver (6), the power end of the output termination power amplifier of power circuit.Be with two annular sound films (8) on the ring support (12), lay respectively at the upper end and the bottom of ring support (12).

Between volume of reception amplifying circuit and power amplifier, be provided with volume control circuit, the output of the input termination volume of reception amplifying circuit of volume control circuit, 1. the output of volume control circuit connects the input of power amplifier, 2. the output of volume control circuit connects the input of level comparison circuit, be connected with volume on the volume control circuit and regulate button (13), and volume is regulated button (13) and is arranged on the keyboard (2), the input of the output termination indication drive circuit of level comparison circuit, the output termination indicator light (14) of indication drive circuit, and indicator light (14) is arranged on the keyboard (2), the power end of the output termination level comparison circuit of power circuit.

The utlity model has following advantage and effect:

1, moral character is led receiver and has been adopted the electrodynamic type transduction principle, compares with traditional electromagnetic type bone conduction telephone receiver, and its structure and production technology have obtained simplifying greatly, and gas, bone conduction have all reached satisfied result of use.

2, moral character is led receiver and is adopted the double bracing location structure, has promptly ensured the conductance performance, has ensured the stable vibration of vibration head again, has expanded the bone conduction frequency band of receiver, makes the receiver response preferably be arranged in the 100-8000HZ scope.

3, set up power amplifier and handle to received signal, make the transmission objective of this machine, when particularly the sidetone index satisfies the public telephone network interface requirement, also will satisfy the task driven requirement that this machine moral character is led the receiver electro-acoustic element.

4, set up volume control circuit, realize the button disc-jockey functionality, by leading receiver volume (vibration) size, to satisfy different sense of hearing needs by "+" "-" key control moral character.

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

Fig. 2 is the structural representation of the utility model keyboard,

Fig. 3 is the structural representation of the utility model handle,

Fig. 4 leads the structural representation of receiver for the utility model moral character,

Fig. 5 is a circuit block diagram of the present utility model,

Fig. 6 is the utility model power amplifier and volume control circuit schematic diagram.

1,2,3,4,4,6 a kind of embodiment of the present utility model is described in conjunction with the accompanying drawings.

A kind of bone conduction telephone set, by casing (1), keyboard (2), handle (3) and cable (4) constitute, be provided with in the casing and the essentially identical dial-up circuit of ordinary telephone set, the anti-side-tone circuit balancing network, send the volume amplifying circuit, volume of reception amplifying circuit and ringing circuit, be provided with transmitter (5) and receiver (6) in the handle (3), receiver (6) is led receiver for moral character, by housing (7), sound film (8), voice coil loudspeaker voice coil (9), magnetic circuit system (10), vibration head (11) constitutes, magnetic circuit system (10) is arranged on the bottom of housing (7), the upper end of voice coil loudspeaker voice coil (9) is fixed with ring support (12), the upper end of ring support (12) is fixed with vibration head (11), stretch out outside the housing (7) upper end of vibration head (11), sound film (8) is an annular, be enclosed within on the ring support (12), and its inner side edge and ring support (12) are fixing, the inwall of outer side edges and housing (7) is fixed, and make voice coil loudspeaker voice coil (9) be arranged in the annular gap of magnetic circuit system (10): in addition, the output of volume of reception amplifying circuit is provided with power amplifier, the output of the input termination volume of reception amplifying circuit of power amplifier, output termination moral character is led the input of receiver (6), the power end of the output termination power amplifier of power circuit.Be with two annular sound films (8) on the ring support (12), lay respectively at the upper end and the bottom of ring support (12).

Operation principle: the audio signal that phone receives is amplified through the volume of reception amplifying circuit, after amplifying, power amplifier flows to the voice coil loudspeaker voice coil that moral character is led receiver again, moral character is led when in the voice coil loudspeaker voice coil of receiver tone currents being arranged, voice coil loudspeaker voice coil can be subjected to the effect of magnetic circuit system magnetic field force and produce motion, thereby drive the vibration of sound film and vibration head, the sound film promotes air vibration and produces sound, is conductance.Vibration head contacts with human body, imports the vibration signal of sound into people's skull, and skull will vibrate the auditory nerve that passes in the people, be bone conduction.

Installing and using of bone conduction telephone set is identical with ordinary telephone set, use easy to operate, 2 explanations that below will be different with ordinary telephone set:

1., when using 12V stabilized voltage power supply one end is inserted commercial power socket, the other end inserts phone 12V outlet, and this moment, " POWER " beacon lamp of phone was bright, local telephone network was connected again, and phone can use.

2., when receiving calls, normal person's operation is identical with plain old telephone.Ear weak person can overlay the bone conduction vibration head of handle the bone place around ear, then according to sense of hearing needs, regulates the size of vibration (sound) and can hear clearly sound.

3., regulated by "+" "-" volume button on the available phone panel of speech amount.Push "+" key continuously, increased gradually by the speech amount, volume indicator light " VOLUME " is lighted from the bottom to top.Push "-" key continuously, reduced gradually by the speech amount, volume indicator light " VOLUME " from top to bottom extinguishes.

Claims

1, a kind of bone conduction telephone set, by casing (1), keyboard (2), handle (3) and cable (4) constitute, be provided with dial-up circuit in the casing, the anti-side-tone circuit balancing network, send the volume amplifying circuit, volume of reception amplifying circuit and ringing circuit, be provided with transmitter (5) and receiver (6) in the handle (3), it is characterized in that: receiver (6) is led receiver for moral character, by housing (7), sound film (8), voice coil loudspeaker voice coil (9), magnetic circuit system (10), vibration head (11) constitutes, magnetic circuit system (10) is arranged on the bottom of housing (7), the upper end of voice coil loudspeaker voice coil (9) is fixed with ring support (12), the upper end of ring support (12) is fixed with vibration head (11), stretch out outside the housing (7) upper end of vibration head (11), sound film (8) is an annular, be enclosed within on the ring support (12), and its inner side edge and ring support (12) are fixing, the inwall of outer side edges and housing (7) is fixed, and make voice coil loudspeaker voice coil (9) be arranged in the annular gap of magnetic circuit system (10): in addition, the output of volume of reception amplifying circuit is provided with power amplifier, the output of the input termination volume of reception amplifying circuit of power amplifier, output termination moral character is led the input of receiver (6), the power end of the output termination power amplifier of power circuit.

2, bone conduction telephone set according to claim 1, it is characterized in that: between volume of reception amplifying circuit and power amplifier, be provided with volume control circuit, the output of the input termination volume of reception amplifying circuit of volume control circuit, 1. the output of volume control circuit connects the input of power amplifier, 2. the output of volume control circuit connects the input of level comparison circuit, be connected with volume on the volume control circuit and regulate button (13), and volume is regulated button (13) and is arranged on the keyboard (2), the input of the output termination indication drive circuit of level comparison circuit, the output termination indicator light (14) of indication drive circuit, and indicator light (14) is arranged on the keyboard (2), the power end of the output termination level comparison circuit of power circuit.

3, bone conduction telephone set according to claim 1 is characterized in that: be with two annular sound films (8) on the ring support (12), lay respectively at the upper end and the bottom of ring support (12).