CN201274568Y

CN201274568Y - Hearing aid

Info

Publication number: CN201274568Y
Application number: CNU200820212381XU
Authority: CN
Inventors: 韦景新
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-14
Filing date: 2008-10-14
Publication date: 2009-07-15
Anticipated expiration: 2018-10-14

Abstract

The utility model provides a hearing aid that can improve the hearing of the hearing disorder, which comprises a protection shell, a printing circuit board and an acoustic transducer, wherein, the printing circuit board comprises a low power consumption audio amplifier; after the sound is converted into an electric signal, the electric signal is transmitted to the low power consumption audio amplifier to be processed, so that the electric signal can be converted more clearly into the sound without the distortion; the hearing aid resolves the technical problems of the prior hearing aid that the squeaking is loud, the power consumption is large, the noise is loud, and the like; the printing circuit board also comprises a high-low-tone processing circuit, and the high-low-tone processing unit is provided with a work frequency band that can process the high sound or the low sound, thereby providing a hearing aid that can select different work frequency bands.

Description

A kind of hearing aids

Technical field

The utility model relates to a kind of auditory prosthesis, more specifically is meant a kind of hearing aids that can improve deaf individual hearing.

Background technology

As everyone knows, hearing aids is exactly a kind of device that enlarges sound, and its function is to increase acoustic intensity and import into as far as possible without distortion in the ear, because of the acoustic energy of sound can not directly amplify, so be necessary to be converted into the signal of telecommunication, is converted to acoustic energy after the amplification again.

Existing hearing aids generally is made of simple transistor circuit, it mainly is made up of microphone, audio frequency amplifier, power circuit, loud speaker, principle is roughly: transfer acoustic energy to the signal of telecommunication by microphone and import into to audio frequency amplifier again, after by audio frequency amplifier input electrical signal being amplified, reach loud speaker again, and by loud speaker will reach and the amplification that comes the signal of telecommunication transfer acoustic energy or kinetic energy output again to.

Therefore, normal sound is via the hearing aids of this principle, can both amplification of volume, and people wear the hearing aids of this principle, can be in the hearing loss that remedies deaf individual in varying degrees.

But existing this hearing aids also exists many shortcomings in concrete the use, be described below respectively now.

At first, as mentioned above, existing hearing aids is to adopt simple transistor circuit, so that it when in use, howling is big, noise is big, operating current is big and battery is short service time, can not without distortion sound import effectively be amplified, and this is one of major defect of existing hearing aids.

Secondly, as mentioned above, existing hearing aids has only an operating frequency section, that is to say that existing this hearing aids can not arbitrarily be changed the operating frequency of hearing aids when in use, and cause deaf individual not select different frequency active sections like this in varying environment, so that the poor effect of hearing aids voice emplifying, perhaps sound can't amplify, and this is a shortcoming again of existing hearing aids.

Once more, as mentioned above, the hearing aids that has now is subjected to its structural limitations, though profile is less, carry easily, can only use battery or rechargeable battery, that is to say, existing hearing aids is narrower and small in the range of choice of using battery, so this just brings great inconvenience to the user, and this is the another shortcoming of existing hearing aids.

Summary of the invention

The utility model provides a kind of hearing aids; it comprises; containment vessel, printed circuit board (PCB) and acoustic transducer; wherein this printed circuit board (PCB) comprises, the low-power consumption audio frequency power amplifier; when sound transfers an electrical signal transfer to this low-power consumption audio frequency power amplifier processing; the signal of telecommunication can more clearly, undistorted transfer sound to, the technical problem that has solved that existing hearing aids howling is big, power consumption is big, noise is big etc., and this is first purpose of the present utility model.

The utility model provides a kind of hearing aids, its printed circuit board (PCB) comprises, high bass treatment circuit, and this high bass treatment circuit has the operating frequency section of handling high pitch or bass, for people provide a kind of hearing aids that can select the different operating frequency range, and this is second purpose of the present utility model.

The utility model provides a kind of hearing aids, its battery pack can be rechargeable battery or disposable battery, that is to say, the utility model selects the selection face of working battery wider to people, and the utility model also is provided with charging circuit, promptly when people select rechargeable battery, can directly charge to rechargeable battery, and do not need rechargeable battery dismounting is charged with other charger, and this is the 3rd purpose of the present utility model.

For realizing above purpose; the technical solution adopted in the utility model is: a kind of hearing aids, and it comprises, containment vessel, printed circuit board (PCB) and acoustic transducer; wherein, this printed circuit board (PCB) forms to be electrically connected with this acoustic transducer and is arranged in the lump in this containment vessel.

Further, this printed circuit board (PCB), it comprises, microphone amplifying circuit, high bass treatment circuit, volume potentiometer and low-power consumption audio frequency power amplifier, wherein, this microphone amplifying circuit forms with this high bass treatment circuit and is electrically connected, and this high bass treatment circuit forms with this volume potentiometer again and is electrically connected again, and this volume potentiometer forms with this low-power consumption audio frequency power amplifier and is electrically connected again.

This containment vessel again; it comprises; top shell, battery case and drain pan, wherein, this battery case is provided in a side of between this top shell and this drain pan; and this top shell is connected with this drain pan; again, this drain pan also is provided with hangers, and this battery case is provided with a battery pack again; further, this low-power consumption audio frequency power amplifier is a TDA7050T chip.

This acoustic transducer comprises microphone and loudspeaker, and this microphone forms with this microphone amplifying circuit and is electrically connected, and these loudspeaker form with this low-power consumption audio frequency power amplifier and are electrically connected, this high bass treatment circuit again, and it comprises, high bass selector switch.

The beneficial effects of the utility model are; the utility model structurally comprises; containment vessel; printed circuit board (PCB) and acoustic transducer; this printed circuit board (PCB) wherein; comprise; the low-power consumption audio frequency power amplifier; when sound transfers an electrical signal transfer to this low-power consumption audio frequency power amplifier processing; the signal of telecommunication can be more clear; the undistorted sound that transfers to; it is big to have solved existing hearing aids howling; power consumption is big; the technical problem of the big grade of noise, this printed circuit board (PCB) also comprises again, high bass treatment circuit; and this high bass treatment circuit has the operating frequency section of handling high pitch or bass, for people provide a kind of hearing aids that can select the different operating frequency range.

Description of drawings

Fig. 1 is the exploded view of containment vessel of the present utility model;

Fig. 2 is battery case of the present utility model and battery pack connection diagram;

Fig. 3 is a drain pan of the present utility model and the diagrammatic sketch that is connected of hangers;

Fig. 4 is a three-dimensional exploded view of the present utility model;

Fig. 5 is the connection diagram of acoustic transducer of the present utility model and drain pan;

Fig. 6 is a stereogram of the present utility model;

Fig. 7 is the vertical view of Fig. 6;

Fig. 8 is a functional-block diagram of the present utility model;

Fig. 9 is an electrical schematic diagram of the present utility model.

Embodiment

As Fig. 1 to Figure 9 shows that a kind of preferred embodiment of the present utility model; a kind of hearing aids, it comprises, containment vessel 10, printed circuit board (PCB) 20 and acoustic transducer 30; wherein, this printed circuit board (PCB) 20 forms to be electrically connected with this acoustic transducer 30 and is arranged in the lump in this containment vessel 10.

Extremely shown in Figure 2 as Fig. 1; this containment vessel 10; it comprises, top shell 11, battery case 12 and drain pan 13, wherein; this battery case 12 is provided in a side of between this top shell 11 and this drain pan 13; and this top shell 11 is connected with this drain pan 13, and this top shell 11 is provided with cavity 111 again, and this drain pan 13 is provided with cavity 131 and connecting hole 132; by the annexation of this top shell 11, determine an accommodation space 133 with this drain pan 13.

This battery case 12 is provided in a side of in this accommodation space 133 again, and it comprises, some battery cavities 121 and battery pack 122, and wherein this battery pack 122 is provided in a side of in these some battery cavities 121, and this battery pack 122 can be rechargeable battery or disposable battery again.

Further, as shown in Figure 3, this drain pan 13 also comprises, hangers 134, this hangers 134 comprises again, connecting portion 135 and kink 136, wherein, this connecting portion 135 is to be connected to become holisticly with this kink 136, and again, this connecting portion 135 is to form with a fixed leg 40 that to be connected the connecting hole 132 that is connected this drain pan 13 in the lump interior.

As shown in Figure 4, it is provided in a side of this printed circuit board (PCB) 20 in this accommodation space 133, and be the below that places this battery case 12, it comprises, microphone amplifying circuit 21, high bass treatment circuit 22, volume potentiometer 23 and low-power consumption audio frequency power amplifier 24, wherein, this microphone amplifying circuit 21 forms with this high bass treatment circuit 22 and is electrically connected, this high bass treatment circuit 22 forms with this volume potentiometer 23 again and is electrically connected again, and this volume potentiometer 23 forms with this low-power consumption audio frequency power amplifier 24 and is electrically connected again.

Further, this microphone amplifying circuit 21 is by some resistance, some electric capacity, and the transistor composition, this high bass treatment circuit 22 comprises, high bass selector switch 221, and this high bass selector switch 221 is provided in a side of in this high bass treatment circuit 22, again, this high bass treatment circuit 22 also includes, some resistance and some electric capacity, this volume potentiometer 23 and a knob 50 form mechanical connection again, and this low-power consumption audio frequency power amplifier 24 is the TDA7050T chip in addition.

Extremely shown in Figure 7 as Fig. 5, it is located at this acoustic transducer 30 in the cavity 131 of this drain pan 13, and be the below that places this printed circuit board (PCB) 20, it comprises, microphone 31 and loudspeaker 32, wherein, this microphone 31 is that the microphone amplifying circuit 21 with this printed circuit board (PCB) 20 forms and is electrically connected, and these loudspeaker 32 form electrical equipment with this low-power consumption audio frequency power amplifier 24 and are connected.

In addition, also be provided with a battery door fastener 60 between the top shell 11 of this containment vessel 10 and this drain pan 13, when this top shell 11 and this drain pan 13 form is connected after, only need be pinned this battery door fastener 60 just and this top shell 11 can be disassembled from this drain pan 13.

In addition, be illustrated in figure 9 as and reach the purpose that the utility model can charge, this printed circuit board (PCB) 20 also can be provided with charging circuit 25, and this charging circuit 25 also can not be located on this printed circuit board (PCB) 20 certainly, and only needs to form be electrically connected with this battery pack 122 to get final product.

By above-mentioned each element and connected mode thereof, extremely shown in Figure 9 as Fig. 8, transferring a signal of telecommunication to by microphone 31 collection sound imports into to this microphone amplifying circuit 21 again, by this microphone amplifying circuit 21 this signal of telecommunication amplification is imported into to this high bass treatment circuit 22 again, handle by 22 pairs of these signals of telecommunication of this high bass treatment circuit, again, import into to this volume potentiometer 23 via this signal of telecommunication after these high bass treatment circuit 22 processing, by this volume potentiometer 23 this signal of telecommunication is reached this low-power consumption audio frequency power amplifier 24 again, and be passed to this loudspeaker 32 after by low-power consumption audio frequency power amplifier 24 this signal of telecommunication being handled, by these loudspeaker 32 this signal of telecommunication is converted into sound, again, after this signal of telecommunication was handled via this low-power consumption audio frequency power amplifier 24, these loudspeaker 32 are can be more clear undistorted to transfer this signal of telecommunication to sound.

In addition this volume potentiometer 23 is the sizes that can regulate this signal of telecommunication that enters this low-power consumption audio frequency power amplifier 24, and then regulates the sound from these loudspeaker 32 outputs.

In addition, this high bass treatment circuit 22 has the operating frequency section of handling high pitch or bass, and this high bass selector switch 221 can be controlled the operating frequency section that this high bass treatment circuit 22 is handled high pitch or bass, when selecting this high bass selector switch 221 to select the high pitch working frequency range, the amplification range of this low-power consumption audio frequency power amplifier 24 compares broad, be adapted at listening to the music in the quiet environment, perhaps listen to the beautiful sound of the Nature.When selecting this high bass selector switch 221 to select the bass working frequency range, this low-power consumption audio frequency power amplifier 24 is primarily aimed at voice and amplifies, and uses when being adapted at talking in the noisy environment.

In addition, the people that the hearing that has has an obstacle is more serious to the high pitch loss, more serious to bass loss that has, the user can select the operating frequency section of high pitch or bass according to different situations, again because the utility model has used high property TDA7050T chip, so it is big well to have improved the traditional hearing aid howling, the problem that noise is big.

And for example shown in Figure 3, drain pan 13 of the present utility model also is provided with a mushroom 70, and this mushroom 70 is connected with this drain pan 13, this mushroom 70 is that sense organ engineering according to the human body ear designs again, material is soft transparent silica gel, is worn on the ear very comfortablely, meets all people that needs are arranged uses, hangers 134 of the present utility model is in addition just turned removing and can left ear auris dextra exchange be used, and the user can change it according to the needs of oneself.

Claims

1. hearing aids, it comprises that containment vessel, printed circuit board (PCB) and acoustic transducer is characterized in that, this printed circuit board (PCB) forms to be electrically connected with this acoustic transducer and is arranged in the lump in this containment vessel,

2. a kind of hearing aids as claimed in claim 1 is characterized in that, this containment vessel; it comprises, top shell, battery case and drain pan, wherein; this battery case is provided in a side of between this top shell and this drain pan, and this top shell is connected with this drain pan, and this battery case is provided with a battery pack again.

3. a kind of hearing aids as claimed in claim 1 is characterized in that, this acoustic transducer comprises microphone and loudspeaker, and this microphone is electrically connected with this microphone amplifying circuit formation, and these loudspeaker form with this low-power consumption audio frequency power amplifier and are electrically connected.

4. a kind of hearing aids as claimed in claim 1 is characterized in that, this high bass treatment circuit, and it comprises, high bass selector switch.

5. a kind of hearing aids as claimed in claim 1 is characterized in that, this low-power consumption audio frequency power amplifier is a TDA7050T chip.

6. a kind of hearing aids as claimed in claim 2 is characterized in that this drain pan also is provided with hangers.