CN201319656Y - Headphone - Google Patents

Headphone Download PDF

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Publication number
CN201319656Y
CN201319656Y CNU2008201464126U CN200820146412U CN201319656Y CN 201319656 Y CN201319656 Y CN 201319656Y CN U2008201464126 U CNU2008201464126 U CN U2008201464126U CN 200820146412 U CN200820146412 U CN 200820146412U CN 201319656 Y CN201319656 Y CN 201319656Y
Authority
CN
China
Prior art keywords
earphone
control box
noise
links
headphone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008201464126U
Other languages
Chinese (zh)
Inventor
陈仲贤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN TECHWIN TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN TECHWIN TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN TECHWIN TECHNOLOGY Co Ltd filed Critical SHENZHEN TECHWIN TECHNOLOGY Co Ltd
Priority to CNU2008201464126U priority Critical patent/CN201319656Y/en
Application granted granted Critical
Publication of CN201319656Y publication Critical patent/CN201319656Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model discloses a noise cancelling headphone comprising a control box and a headphone connected with the control box, wherein the control box comprises a PCB board, more than two microphones for collecting background noise are arranged on the PCB board, each microphone is respectively connected with shaping amplifiers with different parameters, the shaping amplifiers are connected with an inverting amplifier which generates a signal for offsetting the background noise and is connected with the headphone, and a noise mode selection switch is arranged between the microphones and the shaping amplifiers or between the shaping amplifiers and the inverting amplifier. The noise cancelling headphone plays the role of offsetting noise by transferring inverted sound waves emitted by the inverting amplifier to the headphone, thereby not only improving the quality of playing music of the headphone, but also ensuring the health of ears. The noise cancelling headphone has two noise canceling modes, and users can select the different noise canceling modes according to favorites.

Description

Earphone
[technical field]
The utility model relates to a kind of electronic equipment, relates in particular to a kind of earphone.
[background technology]
Earphone is modal portable audio output equipment, in the present life, can see the figure of earphone everywhere.At outdoor music appreciating, or the study of various foreign language listening or the like, all can't do without earphone.The portability of earphone has determined that its background environment of listening to is complicated and diversified.Along with the noise pollution in city is more and more serious, at outdoor application common headphones earplug, can cover the sound that earphone sends when background noise is big, have a strong impact on audibility.
At present, common headphones user generally can only be covered noise by improving earpiece volume, to guarantee the sound that the uppick earphone sends.But the mode that improves volume has so not only lost the enjoyment of listening to beautiful music originally, more seriously, uses the excessive earphone of volume to produce very big influence to user's hearing for a long time, thereby causes degradation consequence under the hearing.
[utility model content]
The purpose of this utility model provides a kind of noise cancelling headphone, and the influence that can effectively listen to earphone than the low environment noise improves listening quality.
For reaching above-mentioned utility model purpose, the utility model proposes following technical scheme:
A kind of earphone comprises control box and the earphone that links to each other with described control box:
Described control box comprises a pcb board, described pcb board is provided with the microphone that is used to gather background noise more than two, each described microphone links to each other with the different shaping amplifier of parameter respectively, described shaping amplifier links to each other with inverting amplifier, and described inverting amplifier produces the signal of counteracting background noise and links to each other with earphone; Be provided with the noise pattern selector switch between described microphone and the shaping amplifier or between described shaping amplifier and the inverting amplifier.
Wherein, described control box also comprises control box upper cover body and control box lower cover, and described pcb board is between control box upper cover body and control box lower cover.
Wherein, described earphone comprises protecgulum, loudspeaker and bonnet, the closed housing that described loudspeaker place protecgulum and bonnet to form; Described protecgulum is provided with a projection that tilts.
Wherein, described earphone also comprises head-shield, spike and sheath, and described bonnet is arranged on the head-shield, also is stamped spike on the described head-shield, and described head-shield also links to each other with sheath.
Wherein, also comprise the adapter that links to each other with earphone, described adapter comprises the adapter lid, and the end in the described adapter lid is provided with the contact pin internal mold, and the other end in the described adapter lid is provided with the USB internal mold that links to each other with the contact pin internal mold.
Wherein, the parameter of described shaping amplifier is divided into and adapts to two kinds of aerial noise reduction mode and ground noise reduction modes respectively
As can be seen from the above technical solutions, noise cancelling headphone of the present utility model contains noise reduction module, noise reduction module is gathered the background noise of environment by using microphone, and send opposite sound wave by inverting amplifier and be delivered to the effect that earphone plays offset noise, both improve the quality of earphone playing back music, guaranteed the health of ear again.
Further, noise reduction module of the present utility model is arranged on the pcb board of control box, and two noise collecting circuits link to each other with inverting amplifier in the noise reduction module, and two kinds of noise reduction modes can be arranged, and the user can select different noise reduction modes according to the hobby of oneself.
In addition, earphone moulding of the present utility model designs according to people's ear structure, can reach the effect of pasting ear better, dresses comfortable; The ejecting structure of control box makes the contact pin of control box to eject easily or to withdraw in the utility model, new and original and convenient the use.
[description of drawings]
Fig. 1 is the vertical view of control box in the utility model;
Fig. 2 is the upward view of control box in the utility model;
Fig. 3 is the cutaway view of Fig. 2 along the A-A direction;
Fig. 4 is the circuit structure diagram of the pcb board of control box in the utility model;
Fig. 5 is the explosive view of control box in the utility model;
Fig. 6 is the front view of earphone in the utility model;
Fig. 7 is the cutaway view of earphone in the utility model;
Fig. 8 is the explosive view of earphone in the utility model;
Fig. 9 is the front view of adapter in the utility model;
Figure 10 is the cutaway view of adapter in the utility model;
Figure 11 is the explosive view of adapter in the utility model.
[embodiment]
Below in conjunction with specific embodiment and Figure of description the technical solution of the utility model is described in detail.
Noise cancelling headphone of the present utility model comprises control box and the earphone that links to each other with control box, microphone by control box is gathered extraneous background noise, after the shaping amplification, enter the noise selector switch and select the pattern of ambient noise, to choose suitable noisiness, carry out anti-phase amplification and be delivered to earphone, produce the acoustical signal close with the background noise amplitude, that phase place is opposite, offset with background noise, reach the purpose of noise reduction.
Embodiment one
One, control box
Control box can link to each other by common plug with connected mode between the earphone, also can link to each other by the mode of USB interface.Shown in Fig. 1,2,3,4,5, described control box comprises assemblies such as control box upper cover body 1.1, control box lower cover 1.2, pcb board 1.3, and described pcb board 1.3 is between control box upper cover body 1.1 and control box lower cover 1.2.In addition, controll block 1.4,1.5 is located on the control box upper cover body 1.1, realizes the selection of the mains switch and the noise pattern of control box respectively.Control box lower cover 1.3 1 sides are battery case, are located at battery cover 1.6 on it.Control box lower cover 1.3 is provided with control box contact pin 1.7 at the opposite side of battery case, and control box contact pin 1.7 can link to each other with audio output apparatus, with received audio signal.
Pcb board 1.3 is main elements of realizing noise reduction, as shown in Figure 4, described pcb board is provided with two microphone 1.3.1,1.3.2, described two microphone 1.3.1,1.3.2 link to each other with two shaping amplifier 1.3.3,1.3.4 respectively, described shaping amplifier 1.3.3,1.3.4 are provided with different parameters, can form two circuit of gathering background noise, the background noise collection in the external world can be come in by microphone.
Above-mentioned two shaping amplifier 1.3.3,1.3.4 link to each other with noise pattern selector switch 1.3.5, by noise pattern selector switch 1.3.5, can select two noise reduction modes of aerial mode and ground mode.The parameter of described shaping amplifier 1.3.3,1.3.4 is divided into and adapts to two kinds of aerial noise reduction mode and ground noise reduction modes respectively.
Described noise pattern selector switch 1.3.5 links to each other with inverting amplifier 1.3.6, and certainly, noise pattern selector switch 1.3.5 also can be arranged between microphone 1.3.1,1.3.2 and two shaping amplifier 1.3.3, the 1.3.4.Described inverting amplifier 1.3.6 links to each other with earphone, and described inverting amplifier 1.3.6 is by control box contact pin 1.7 received audio signals; Inverting amplifier 1.3.6 produces the acoustical signal close with the background noise amplitude, that phase place is opposite according to the noise information of gathering, and is delivered to earphone and background noise counteracting.
Be appreciated that two kinds of noise reduction modes only are wherein a kind of execution modes of the present utility model, under the prerequisite that does not break away from the utility model design, design the earphone of two or more noise reduction modes, also should be within protection range of the present utility model.Multiple noise reduction mode can be selected a plurality of different noise reduction modes by selector switch again by increasing the circuit of gathering background noise and being connected to inverting amplifier.
Two, earphone
Shown in Fig. 6,7 and 8, described earphone comprises protecgulum 2.1, loudspeaker 2.2 and bonnet 2.4, the closed housing that described loudspeaker 2.2 place protecgulum 2.1 and bonnet 2.4 to form for protecting loudspeaker 2.2 better, also is provided with packing ring 2.3 between described loudspeaker 2.2 and the bonnet 2.4; Described earphone also comprises head-shield 2.5, spike 2.6 and sheath 2.7, and described bonnet 2.4 is arranged on the head-shield 2.5, also is stamped spike 2.6 on the described head-shield 2.5, and described head-shield 2.4 also links to each other with sheath 2.7.
The loudspeaker 2.2 monomer diameters of the utility model earphone can be 13.5mm, and impedance can be 32 Europe, and frequency response range is generally 20Hz-20kHz, and sensitivity is generally 7dB under the pattern aloft, is generally 4dB under ground mode.
Embodiment two
On the basis of the foregoing description, present embodiment also improves the structure of earphone, present embodiment improves the earphone protecgulum 2.1 of pressing close to ear according to the structure of people's ear, is provided with a protruding 2.1.1 who tilts on described protecgulum 2.1, and this projection 2.1.1 is generally truncated cone-shaped.
The unique design of this projection 2.1.1 can make earphone reach the effect of pasting ear better, dresses comfortable.
Embodiment three
On the basis of the foregoing description, shown in Fig. 9,10,11, present embodiment also further provides the USB that links to each other with earphone to change the adapter of common 3.5MM plug, described adapter comprises adapter upper cover body 3.1 and adapter lower cover 3.2, described joint upper cover body 3.1 and adapter lower cover 3.2 mutual engagement connections, end in the adapter lid is provided with contact pin internal mold 3.3, the other end in the described adapter lid is provided with the USB internal mold 3.5 that links to each other with contact pin internal mold 3.3, and described USB internal mold 3.5 places in the USB external mold 3.4.
This adapter can make things convenient for the user not using under the situation of falling hot-tempered function, and direct noise cancelling headphone with USB interface inserts in this adapter and uses as the common headphones state.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (5)

1, a kind of earphone is characterized in that, comprises control box and the earphone that links to each other with described control box:
Described control box comprises a pcb board, described pcb board is provided with the microphone that is used to gather background noise more than two, each described microphone links to each other with the different shaping amplifier of parameter respectively, described shaping amplifier links to each other with inverting amplifier, and described inverting amplifier produces the signal of counteracting background noise and links to each other with earphone; Be provided with the noise pattern selector switch between described microphone and the shaping amplifier or between described shaping amplifier and the inverting amplifier.
2, earphone according to claim 1 is characterized in that, described control box also comprises control box upper cover body and control box lower cover, and described pcb board is between control box upper cover body and control box lower cover.
3, earphone according to claim 1 is characterized in that, described earphone comprises protecgulum, loudspeaker and bonnet, the closed housing that described loudspeaker place protecgulum and bonnet to form; Described protecgulum is provided with a projection that tilts.
4, earphone according to claim 3 is characterized in that, described earphone also comprises head-shield, spike and sheath, and described bonnet is arranged on the head-shield, also is stamped spike on the described head-shield, and described head-shield also links to each other with sheath.
5, according to each described earphone in the claim 1 to 4, it is characterized in that, also comprise the adapter that links to each other with earphone, described adapter comprises the adapter lid, end in the described adapter lid is provided with the contact pin internal mold, and the other end in the described adapter lid is provided with the USB internal mold that links to each other with the contact pin internal mold.
CNU2008201464126U 2008-08-06 2008-08-06 Headphone Expired - Fee Related CN201319656Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201464126U CN201319656Y (en) 2008-08-06 2008-08-06 Headphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201464126U CN201319656Y (en) 2008-08-06 2008-08-06 Headphone

Publications (1)

Publication Number Publication Date
CN201319656Y true CN201319656Y (en) 2009-09-30

Family

ID=41198413

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201464126U Expired - Fee Related CN201319656Y (en) 2008-08-06 2008-08-06 Headphone

Country Status (1)

Country Link
CN (1) CN201319656Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102238452A (en) * 2011-05-05 2011-11-09 安百特半导体有限公司 Method for actively resisting noises in hands-free earphone and hands-free earphone
CN103051774A (en) * 2011-10-14 2013-04-17 浪潮乐金数字移动通信有限公司 Mobile terminal based on multi-unit loudspeaker
WO2014048175A1 (en) * 2012-09-28 2014-04-03 安百特半导体有限公司 Hearing-aid and anti-noise method and apparatus for bluetooth earphone
CN104254026A (en) * 2013-06-28 2014-12-31 胜德国际研发股份有限公司 Headphone cable and plug thereof
CN103051774B (en) * 2011-10-14 2016-12-14 浪潮乐金数字移动通信有限公司 A kind of mobile terminal based on multi-unit loudspeaker
CN110446131A (en) * 2018-05-02 2019-11-12 歌尔股份有限公司 A kind of earphone adapter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102238452A (en) * 2011-05-05 2011-11-09 安百特半导体有限公司 Method for actively resisting noises in hands-free earphone and hands-free earphone
CN103051774A (en) * 2011-10-14 2013-04-17 浪潮乐金数字移动通信有限公司 Mobile terminal based on multi-unit loudspeaker
CN103051774B (en) * 2011-10-14 2016-12-14 浪潮乐金数字移动通信有限公司 A kind of mobile terminal based on multi-unit loudspeaker
WO2014048175A1 (en) * 2012-09-28 2014-04-03 安百特半导体有限公司 Hearing-aid and anti-noise method and apparatus for bluetooth earphone
CN104254026A (en) * 2013-06-28 2014-12-31 胜德国际研发股份有限公司 Headphone cable and plug thereof
CN110446131A (en) * 2018-05-02 2019-11-12 歌尔股份有限公司 A kind of earphone adapter

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090930

Termination date: 20140806

EXPY Termination of patent right or utility model