CN201414207Y

CN201414207Y - Noise-reduction power amplifier earphone

Info

Publication number: CN201414207Y
Application number: CN2009201208637U
Authority: CN
Inventors: 张世民; 付尚简
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-22
Filing date: 2009-05-22
Publication date: 2010-02-24
Anticipated expiration: 2019-05-22

Abstract

A noise-reduction power amplifier earphone is characterized in that a receiver support with a receiver, batteries and an electronic circuit board are arranged inside a cavity body formed by ear shields, ear caps and ear pads, ear hooks are connected to the ear shields, an adjustable head band is connected with the ear hooks, each ear shield is connected with volume and tone adjusting knobs, a potentiometer and more than one microphone, and the microphones and the potentiometer are connected with the electronic circuit board. The microphones are arranged in four different directions of each earshield, thereby absolutely having stereo phonoreception or surround sound effect and being capable of amplifying generated natural and clear sound. In a wild hunting environment, small sound can be easy to be received via picking of the microphones at different positions, then the accurate position of the small sound can be determined, the volume and tone adjusting knobs and the head band can beadjusted according to needs, and the earphone is soft and comfortable in wearing and fine in soundproof effect. The noise-reduction power amplifier earphone is particularly suitable for using in occasions such as shooting training grounds, hunting wilds, noisy machine rooms and the like.

Description

Noise reduction power amplifier earphone

Technical field

The utility model relates to a kind of earphone, and the places such as machine room of particularly a kind ofly be widely used in the target practice training place, open-air hunt, environment is noisy can effectively reduce environmental noise, picks up and amplifies the noise reduction power amplifier earphone that needed sound uses.

Background technology

The patent No. 200720084229.3 " a kind of multi-mode earphone with power amplifier " only provides a kind of and can effectively prolong the walkman reproduction time and increase the multiple mode of answering, and its scope of application is less.

The patent No. 200720121545.3 " a kind of earphone " with reduction noise function, provide a kind of again by the ambient noise that picks up is carried out anti-phase processing and amplifying, to carry out superposition through the noise and the former noise of anti-phase processing and amplifying again, enter the noise cancelling headphone of people's ear noise with reduction, do not influencing under the normal use prerequisite of ear-phone function simultaneously, eliminated the bad sensation that former noise brings the user, but this earphone only suits also to use in aviation and commercial kitchen area.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of noise reduction power amplifier earphone is provided, not only can effectively reduces environmental noise, it is good to pick up and amplify needed sound soundproof effect, suits especially to use in broad place.

The technical scheme in the invention for solving the above technical problem is, noise reduction power amplifier earphone, receiver support, battery, the electronic circuit board of mounting strap receiver in the cavity that constitutes by earmuff, ear muff, ear pad, be connected with tack on the described earmuff, connect the adjustable headband that constitutes by headband bar, draw runner, scalp cover on the tack, be connected with volume, tone adjusting knob on described each earmuff and be connected with potentiometer, also be connected with one and more than one microphone, microphone, potentiometer are connected with electronic circuit board.

Compared with prior art, advantage of the present utility model is: this earphone is before each earmuff, after two totally four high-frequency response microphones are installed, four locational microphones of different directions, the final effect that produces definitely has the characteristics of three-dimensional phonoreception or surround sound, these four microphones are fully independently simultaneously, it is the most natural that it can guarantee that earphone will produce, sound amplifies clearly, in domestic speech communication of circlet and order is very clear and definite with accurately, in the open air in the overall situation of Shou Lieing, very small sound also can be easy to accept because of the microphone that four diverse locations are arranged, be determined to position accurately, again because of tone is arranged, volume adjustment knob also can freely be selected as required, this earphone will produce sound definitely clearly, the ear pad of this earphone is thicker and soft in addition, comfortable wearing also soundproof effect is good, can stop growing of bacterium again, headband also can carry out size adjustment as required makes its soundproof effect reach best.

Description of drawings

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

The vertical view of Fig. 2, Fig. 1.

The internal structure schematic diagram of Fig. 3, Fig. 1.

A-A cutaway view among Fig. 4, Fig. 2 (only being earmuff, ear muff, ear pad connection diagram).

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Headband bar 9 has guide vane end stop 9-1 respectively for there is the strip of opening at two ends on the two-port.

There are the two sections draw runners 8 that there are a caulking groove guide vane end stop 8-1 lower end upper end respectively in the opening on the insert head tapes 9, and in the opening of headband bar 9 upper and lower being free to slide, as shown in Figure 3.

The width of headband bar 9 is greater than the width of draw runner 8, and scalp cover 10-1 is enclosed within headband bar 9 and the draw runner 8 outer headbands 10 that connect into integral body, for making headband 10 soft pliable songs, on the inwall of scalp cover 10-1 uniform recessed tooth bar is arranged.

Protruding button 1-1 is arranged on the edge of earmuff 1, on ear muff 2 inner faces of annular draw-in groove 2-1 is arranged, outside flange 2-2 is arranged on the outer face.

Protruding button 1-1 on the earmuff 1 inserts in the draw-in groove 2-1 on the ear muff 2 and links into an integrated entity, and ear pad 3 fastens with glue in the flange 2-2 of the outer face that is fixed on ear muff 2, as shown in Figure 4.

There are tone adjusting knob 5 and volume adjustment knob 6 in the upper end of each earmuff 1 outer surface, is installed on the potentiometer 15, and potentiometer 15 is installed in the cavity of earmuff inwall.

On the forward and backward position microphone 4 is installed respectively in the middle of each earmuff 1 outer surface, also is coated with the sponge 4-1 that keeps out the wind that is made into by high-density sponge, as shown in Figure 2 at each microphone 4.

Tack 7 utilizes the inserting column 7-1 on the two ends, inserts respectively in the two through hole on the earmuff 1 outer surface middle edge, is fixed on the outer cover 1.

The caulking groove of two draw runners, 8 its ends of usefulness is clamped in the groove of two tacks, 7 centres, as Fig. 1, shown in Figure 3.

In the inwall chamber of earmuff 1, be screwed receiver frame 12, receiver 11, electronic circuit board 14 all are fixed on the receiver frame 12, No. seven batteries 13 are installed in the middle battery case, and receiver 11, microphone 4, potentiometer 15 are connected with electronic circuit board 14 respectively, as shown in Figure 3.

Ear pad 3 has adopted soft, pliable and tough butyl rubber material to become thicker ear pad, and comfortable wearing and soundproof effect is good has also been added antimicrobial within it, prevents when round-the-clock the use in order to avoid the growing of bacterium, mould and fungi.

During use, the headband 10 of earphone is worn on the head, according to everyone head size can spur draw runner 8 with the length adjustment of headband 10 to state optimum, the most comfortable, clockwise direction rotation volume adjustment knob 6, volume is adjusted to only sound size, clockwise direction is regulated tone adjusting knob 5 again, regulates the sound of required frequency range.

Microphone 4 is in noise, also in comprehensive detection and pick up the sound of required frequency, sound according to microphone 4 detected required frequencies, electronic circuit board 14 has adopted the amplifying circuit of binary channels ultra-low-distortion, control each earphone respectively by tone,

volume adjustment knob

5,6, potentiometer 15, can freely select required sound kind and volume like this, at this moment earphone will produce sound definitely clearly.

Claims

1, a kind of noise reduction power amplifier earphone, by earmuff (1), ear muff (2), the receiver support (12) of mounting strap receiver (11) in the cavity that ear pad (3) constitutes, battery (13), electronic circuit board (14), be connected with tack (7) on the described earmuff (1), tack (7) is gone up and is connected by headband bar (9), draw runner (8), the adjustable headband (10) that scalp cover (10-1) constitutes, it is characterized in that being connected with volume on described each earmuff (1), tone adjusting knob (6), (5) and with potentiometer (15) be connected, also be connected with one and more than one microphone (4), microphone (4), potentiometer (15) is connected with electronic circuit board (14).

2, noise reduction power amplifier earphone according to claim 1, it is characterized in that there is projection (1-1) at described each earmuff (1) edge, on ear muff (2) inner face draw-in groove (2-1) is arranged, outside flange (2-2) is arranged on the outer face, in the draw-in groove (2-1) on protruding button (1-1) the insertion ear muff (2) on the earmuff (1), ear pad (3) fastens with glue and is fixed in the flange (2-2) of ear muff (2) outer face.

3, noise reduction power amplifier earphone according to claim 1, it is characterized in that on the middle forward and backward position of described each earmuff (1) outer surface a microphone (4) being installed respectively, also be coated with the sponge of keeping out the wind (4-1) that is made into by high-density sponge at each microphone (4).

4, noise reduction power amplifier earphone according to claim 1, it is characterized in that described tack (7) utilizes the inserting column (7-1) on the two ends, insert respectively in the two through hole on earmuff (1) the outer surface middle edge, be fixed on the outer cover (1), the end of described two draw runners (8) is clamped in the middle groove of two tacks (7) with caulking groove.