CN102196330B - Earphone - Google Patents
Earphone Download PDFInfo
- Publication number
- CN102196330B CN102196330B CN201110054882.6A CN201110054882A CN102196330B CN 102196330 B CN102196330 B CN 102196330B CN 201110054882 A CN201110054882 A CN 201110054882A CN 102196330 B CN102196330 B CN 102196330B
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- CN
- China
- Prior art keywords
- space
- actuator unit
- framework
- microphone
- housing
- 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
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- Headphones And Earphones (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Earphone of the present invention has the housing holding actuator unit, and framework, and described framework is communicated with the dorsal part space of the actuator unit in housing.The inside of framework cuts off for multiple space by spaced walls, the plurality of space is at least made up of the first space and second space, described first space is communicated with actuator unit dorsal part space, for the hollow space of actuator unit dorsal part spatial volume can be increased, described second space accommodates the microphone can responding to external noise, and the first space and second space are cut off by acoustics by described spaced walls.
Description
Technical field
The present invention relates to a kind of earphone used as stereo set, particularly relate to the structure of the acoustic characteristic for improving duct type earphone and be applicable to the structure of the microphone received for forming noise-eliminating earphone.
Background technology
In the past, as in the earphone that stereo set uses, as the method improving acoustic characteristic, particularly as the method affecting its vibration that the back pressure produced during the vibrating membrane vibration prevented due to actuator unit side causes, people's providing holes in a part for described earphone case, and then sound-resistance material is set in this hole to regulate acoustic characteristic.Such as, described earphone in the past is generally configured to structure as shown in Figure 3.
In Fig. 3, housing 102 is formed as bassie shape, and the inside of housing 102 is provided with actuator unit 103, before (in Fig. 3 for left surface) be formed with the peristome 110 play for sound.Actuator unit 103 has the yoke 104 being generally flat ware shape, is equipped with discoid pole shoe 106 in the inside of yoke 104 by discoid magnet 105.
Be mounted opposite before vibrating membrane 107 and pole shoe 106, vibrating membrane 107 is provided with voice coil loudspeaker voice coil 108.In the magnetic gap that voice coil loudspeaker voice coil 108 is formed between yoke 104 and pole shoe 106.At the back side of housing 102, arrange porose 109, housing 102 inner face side in hole 109 is provided with sound-resistance material 111.
In addition, as shown in Figure 4, there will be a known earphone and be attached with bass compensation pipe 112, to expand low-frequency band limiting frequency.Although the actuator unit 103 during the structure of actuator unit 103 is exemplified with Fig. 3 is identical, but itself and the difference exemplified by Fig. 3 are: will the bass compensation pipe 112 of specific length and specified diameter be had, be communicated with the inner space of the housing 102 being built-in with actuator unit 103, make it to be integrated with housing 102 one-tenth.By such setting, due to the bass compensation effect in the space of pipe 112, the low-frequency band limiting frequency of described vibrating membrane can be expanded.
But in such a configuration, the thickness of vibrating membrane, the shape of described bass compensation pipe, internal capacity are restricted, and the improvement of acoustic characteristic is limited.
Therefore, earphone is as shown in Figure 5 proposed in patent documentation 1.In earphone shown in Fig. 5, have employed the structure that the first housing 201 is communicated with by interface channel 203 with the second housing 202.In the first housing 201, be provided with the actuator unit 103 identical with the actuator unit in Fig. 3, Fig. 4.And then, be configured in the inner space of described second housing 202 as the bass compensation vibrating membrane 204 playing bass compensation effect, the inner space of housing 202 is divided into front and back two parts.To by such structure, realize improving low-frequency band characteristic when not affecting alt territory characteristic.
In de-noising type earphone and headphone, it is eliminate to invade external noise in earphone or headphone and environmental noise, makes it not hinder the broadcasting of music etc. and designs.Its principle is, responds to external noise by microphone, generates the antiphase noise cancellation signal of this induced signal and is supplied to actuator unit, makes noise can only be heard play sound (for example, referring to the patent documentation 2) of music etc. by offseting.
Patent documentation 1 Japan Patent No. 2643956 publication
Patent documentation 2 Japanese Unexamined Patent Publication 08-275281 publication
But, according to the earphone as shown in Figure 5 described in patent documentation 1, need in the second housing 202 of bass compensation, arrange the bass compensation vibrating membrane 204 having and be enough to the inertia mass reducing bass limiting frequency especially, this makes structure more complicated.
In addition, the sound wave that bass compensation vibrating membrane 204 needs the actuator unit 103 by being conscientiously received from the first housing 201 side to send causes self vibration, obtain the bass lower than the lowest resonance frequency of the vibrating membrane of actuator unit 103, be therefore necessary the quality correspondingly increasing bass compensation vibrating membrane 204.Thus, supporting construction is also necessary to strengthen, and this will cause small product size to become large.
The vibrating membrane of actuator unit 103 is generally the organic system film be made up of PETG etc., and bass compensation vibrating membrane 204 is metal plate, therefore both difference in qualitys are larger.Therefore, achieve one's goal and make the bass compensation vibrating membrane 204 of the back pressure produced because being subject to being driven by actuator unit 103 vibrate very difficult.
The earphone described in patent documentation 1 shown in Fig. 5, is considered to the technical thought that have employed passive radiation type loud speaker.In passive radiation type loud speaker, on the loudspeaker enclosure being provided with loudspeaker unit, the vibrating membrane but the loud speaker without the dummy unit of magnetic circuit or voice coil loudspeaker voice coil with diameter roughly the same with the vibrating membrane of described loudspeaker unit are installed again.The vibrating membrane of dummy unit for the effect realized is, it is born back pressure that the vibration vibration of membrane due to loudspeaker unit produces and vibrates, the radiation of the sound wave produced by this vibration, improves the sound pressure level of low range.In passive radiation type loud speaker, the sound wave coming from dummy unit is radiated outside together with the sound wave from loudspeaker unit, this sound wave just tells on after reaching the ear of user, and in earphone, even if arrange the pseudo-vibrating membrane shown in Fig. 5, sound wave from pseudo-vibrating membrane does not enter the ear of user yet, cannot realize effect like passive radiation type loud speaker.
On the other hand, when arranging microphone to abate the noise, microphone need be installed in a part for the housing accommodating actuator unit.But installation of driver unit on housing, causes microphone to be installed to position close to actuator unit, when actuator unit drives, its vibration vibration of membrane is easily delivered to microphone, may cause microphone whistle.Utter long and high-pitched sounds even if do not cause, if the vibration passing of actuator unit vibrating membrane is to microphone, then can cause abating the noise accurately, or cause the problems such as the part play signal of music etc. (following, this signal is called " note signal ") is eliminated.
The object of the invention is to, solve the technical task existed in above-mentioned earphone in the past, namely, even if provide a kind of without the need to labyrinth, there is the structure that also can obtain good result in bass frequencies characteristic, and de-noising microphone easily can not cause because of the action of actuator unit utters long and high-pitched sounds, and makes the earphone that high-precision de-noising becomes possible.
Summary of the invention
The main technical schemes of earphone of the present invention is as follows: have the housing for holding actuator unit, and the framework to be communicated with the described actuator unit dorsal part space in described housing, the inside of described framework, at least being cut off by acoustics by spaced walls is the first space and second space, described first space is be communicated with described actuator unit dorsal part space by intercommunicating pore, and the space of the hollow that the volume in described actuator unit dorsal part space is increased, described second space is for abating the noise, accommodate the space of the microphone for responding to external noise, described microphone arrangement is, by cutting off described first space and second space by described spaced walls acoustics, make this microphone not by the impact from the back pressure of actuator unit rear side.
According to earphone of the present invention, by having the framework be communicated with the actuator unit dorsal part space of case side, make the volume in the first space enlargement actuator unit dorsal part space, simultaneously, framework is inner to be cut off for the different space of function by spaced walls, i.e. the second space of described first space and accommodation induction external noise microphone.
So, following effect can being realized: without the need to using special inertia mass parts can improve the response of low range, the phenomenon such as there will not be sound stuffy, the tonequality that low range is very full can be obtained.In addition, be utilized as the response improving low range and the framework arranged arranges induction noise microphone, simultaneously, due to spaced walls by the second space of this accommodation microphone from described first space partition, therefore the vibration of actuator unit can not cause described microphone whistle, can carry out high-precision de-noising.
Accompanying drawing explanation
Fig. 1 shows the stereoscopic figure of the embodiment of earphone of the present invention.
Fig. 2 is along the profile of (2) in Fig. 1-(2) line.
Fig. 3 is the sectional arrangement drawing representing earphone example in the past.
Fig. 4 is the sectional arrangement drawing of the other example representing earphone in the past.
Fig. 5 is the sectional arrangement drawing of the example again representing earphone in the past.
The explanation of symbol
1 earphone
2 housings
20 actuator unit dorsal part spaces
4 frameworks
4A, 4B profile portion
4B1 picks up external noise opening
4C first space
4D second space
8 actuator units
The main part of 9 frameworks
9A opening
9C back pressure release aperture
10 induction external noise microphones
Embodiment
Below, be described with reference to the embodiment of accompanying drawing to earphone of the present invention.
In the earphone 1 of Fig. 1, as main composition part, there is housing 2, framework 4, the playback pipe 3 being communicated with housing 2 and earplug 5.In Fig. 1, symbol 6 represents the lead division of lead-in wire 7.
As shown in Figure 2, housing 2 forms the hollow form parts of inner space by the relative edge of the bassie formed with double parallel shape surrounding wall portion 2A, 2B being embedded, and as shown in Figure 2, is accommodated with actuator unit 8 in inner space.Surrounding wall portion 2A forms the first half of housing 2, and surrounding wall portion 2B forms the latter half of of housing 2.Playback pipe 3 is tube, it is communicated with the inner space of housing 2 with the state that the external auditory meatus (not shown) from housing 2 towards user is outstanding, near its front end, as shown in Figure 2, projected direction is formed with multiple annular convex 3A, to keep preventing coming off of embedded earplug 5.
Earplug 5 is configured to, and is formed with the concave groove (not shown) chimeric with the annular convex 3A of playback pipe 3 side, has the earhole insertion section of the hemispherical softness of turning back from the leading section of this cylinder-like part in inside.This earhole insertion section is inserted after in external auditory meatus, is close to external auditory meatus inner face, decreases the decline of the low-frequency band ability to play caused due to the leakage of sound.
As shown in Figure 2, framework 4 is the parts formed as one with the shape of being born by housing 2 and housing 2, has the cavity be communicated with the actuator unit dorsal part space 20 in housing 2.About the structure of this framework 4, will be described in detail after a while as feature of the present invention.
The base portion of lead-in wire lead division 6 is attached in framework 4, lead-in wire lead division 6 from the lower, outer perimeter of framework 4 towards intertragic incisure side in bar-shaped projecting, with the intertragic incisure making earphone 1 embed user's external ear in use.Lead-in wire lead division 6 inside be the cavity portion of establishing for interspersed lead-in wire 7, intert to cavity portion lead-in wire 7 by its with outside stereo set be connected, note signal can be delivered to driver element 8.
In the structure of earphone 1 as above, be attached with the structure with feature of the present invention as described below.
The invention is characterized in the structure of framework 4.Specifically be: the volume expanding the space be communicated with the dorsal part space of the actuator unit 8 of housing 2 side, reduce the impact of the back pressure of the vibrating membrane produced in actuator unit dorsal part space 20; Meanwhile, utilize the part in framework 4 space to hold induction external noise microphone 10, prevent described microphone 10 from uttering long and high-pitched sounds by the action of actuator unit 8.
In Fig. 2, framework 4 is double parallel structure, and by the main part 9 of tubular, and two profile portion 4A, 4B being incorporated into these main part 9 both sides formed.Therefore, formed as one by the state that profile portion 4A, 4B clamp with main part 9, form the first space 4C by described main part 9 and profile portion 4A in inside, form second space 4D by described main part 9 and profile portion 4B in inside.Described main part 9 is bottomed cylindrical parts, and the part as this end is spaced walls 91.The end of that spaced walls 91 is formed at described main part 9, that profile portion 4B combines side.The main part 9 of framework 4 is integrally formed with the surrounding wall portion 2B of the rear side of housing 2.The joint portion of described surrounding wall portion 2B and described profile portion 4A, 4B is airtight construction.
As mentioned above, the main part 9 of framework 4 is integrally formed with the surrounding wall portion 2B of the rear side of housing 2, is formed with intercommunicating pore 9A between the surrounding wall portion 2B of the main part 9 of framework 4 and the rear side of housing 2.By this intercommunicating pore 9A, the actuator unit dorsal part space 20 of housing 2 is communicated with described first space 4C.
Space in framework 4 with the spaced walls 91 of main part 9 for boundary, the second space 4D being set to described first space 4C and being surrounded by profile portion 4B and spaced walls 91.In other words, the inside of framework 4 is cut off for multiple space by spaced walls 91.In the main part 9 of framework 4, be formed with back pressure release aperture 9C near the fitting portion of itself and profile portion 4A, it makes the first space 4C and ft connection, and the back pressure that the vibrating membrane rear side of actuator unit 8 produces is discharged into outside.
On the other hand, at second space 4D, respond to external noise microphone 10 with relative the accommodating of pickup external noise opening 4B1 being formed at profile portion 4B.Induction external noise microphone 10 is accommodated in the inside of framework 4 but not the outside of exposing to framework 4.Pickup external noise opening 4B1 is arranged at the bottom center of the profile portion 4B being formed as bassie shape, to make the radio reception central shaft of microphone 10 by the position of the state determination microphone 10 of described opening 4B1 and posture.In Fig. 2, the radio reception central shaft of microphone 10 is towards left and right directions.The playback central shaft of actuator unit 8 and the radio reception central axis of microphone 10, therefore, the position of actuator unit 8 and posture are confirmed as towards above-below direction in fig. 2.Opening 4B1 is not limited only to above-mentioned position, can be arranged at the appropriate location of profile portion 4B.
Because the present embodiment is structure as above, therefore framework 4 is connected with the housing 2 accommodating actuator unit 8, and this framework 4 has the first space 4C be communicated with actuator unit dorsal part space 20.Further, be formed with second space 4D in the inside of framework 4, it is separated by the spaced walls 91 formed as one with main part 9 and is cut off, and holds thoughts and answer external noise microphone 10 in the 4D of this space.Thus, by volume enlargement part and the back pressure release aperture 9C of the first space 4C of framework 4 side, the impact from the back pressure in actuator unit dorsal part space 20 is alleviated, and can improve the result of broadcast of low-frequency band.
On the other hand, second space 4D is configured to be cut off by spaced walls 91 and the first space 4C, not to be subject to the impact from the back pressure of actuator unit 8 rear side.Therefore, it is possible to conscientiously prevent uttering long and high-pitched sounds of the induction external noise microphone 10 being contained in second space 4D, and only respond to external noise, only using external noise as elimination object, thus more high-precision de-noising can be realized.And pickup external noise opening 4B1 is relative with the substantial middle position of induction external noise microphone 10 and arrange, therefore, it is possible to improve external noise relative to the directionality of microphone, can suppress the reduction of sensitivity.
With the mutually perpendicular state of playback central shaft of the radio reception central shaft and actuator unit 8 that make induction external noise microphone 10, configuration induction noise microphone 10 and actuator unit 8, therefore the configuration relation of microphone 10 makes it the impact of the back pressure be not vulnerable to from actuator unit 8 rear side, can realize more high-precision de-noising effect.
In the present embodiment, the main part 9 of framework 4 is provided with profile parts 4A, 4B of split.In addition, the main part 9 of framework 4, because become to be one of the forming with the dorsal part surrounding wall portion 2B of roughly half forming housing 2, therefore easily assembles, and can reduce the quantity of parts, have can reduce work hours, reduce costs, advantage cheap for manufacturing cost.
In the present embodiment, under the using state of earphone 1, the profile portion 4A forming the first space 4C be before, namely with the face that the face of user is almost parallel, this face is formed as the shape close to plane that outer surface does not bloat.The appearance design face that can be used as before this profile portion 4A uses, even by additional image or impose the effect that engraving mark trade mark etc. obtains advertisement.
In addition, although not shown, but earphone of the present invention 1 does not have in spaced walls 91 to arrange the hole being used for interspersed wire type, and is connected with microphone 10 with induction external noise by actuator unit 8, and thus sound is not easily revealed, and can be designed to the structure being easy to assemble.
The present invention is not limited to the structure in embodiment described above, only otherwise exceed the scope of the technological thought described in claims, suitably can carry out design alteration.Such as, technological thought of the present invention is also applicable to hearing aids, headset etc.
Claims (4)
1. an earphone, is characterized in that,
Have:
Housing, for holding actuator unit,
Framework, is communicated with the described actuator unit dorsal part space in described housing;
Wherein, the inside of described framework, at least being cut off by acoustics by spaced walls is the first space and second space,
Described first space is to be communicated with described actuator unit dorsal part space by intercommunicating pore and to make the hollow space that the volume in described actuator unit dorsal part space increases,
Described second space is for abating the noise, and accommodates the space of the microphone for responding to external noise,
Described microphone arrangement is, by cutting off described first space and second space by described spaced walls acoustics, makes this microphone not by the impact from the back pressure of actuator unit rear side,
Described framework is made up of two profile portion of main part with the end and this main part of clamping, and the described end becomes described spaced walls,
The described main part of described framework and the dorsal part perisporium of described housing integrally formed,
Described microphone and described actuator unit are configured so that the playback central shaft of the radio reception central shaft of described microphone and described actuator unit is orthogonal.
2. earphone according to claim 1, wherein, is provided with back pressure release aperture in described framework, for making described first space and ft connection, the back pressure that the vibrating membrane rear side of described actuator unit produces is discharged into outside.
3. earphone according to claim 1, wherein, described housing is made up of front side perisporium and the described dorsal part perisporium be nested on front side of this on perisporium.
4. earphone according to claim 1, during use, the lateral surface of one of two profile portion forming described framework is for above, and the appearance design face that can be used as before being somebody's turn to do uses.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010050411A JP4652474B1 (en) | 2010-03-08 | 2010-03-08 | earphone |
| JP2010-050411 | 2010-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102196330A CN102196330A (en) | 2011-09-21 |
| CN102196330B true CN102196330B (en) | 2015-09-23 |
Family
ID=43952731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110054882.6A Expired - Fee Related CN102196330B (en) | 2010-03-08 | 2011-03-07 | Earphone |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4652474B1 (en) |
| CN (1) | CN102196330B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5902202B2 (en) * | 2012-01-17 | 2016-04-13 | Ｐｉｏｎｅｅｒ ＤＪ株式会社 | headphone |
| KR101310879B1 (en) | 2012-06-19 | 2013-09-25 | 김흥배 | Earphone |
| JP5548790B1 (en) * | 2013-01-30 | 2014-07-16 | 進 庄司 | Open earphone with sound collecting microphone and hearing aid |
| CN103763650B (en) * | 2013-12-31 | 2017-04-12 | 合肥讯飞数码科技有限公司 | Telephone receiver, feedback type telephone receiver noise elimination system and active noise elimination method for telephone receiver |
| US9578412B2 (en) * | 2014-06-27 | 2017-02-21 | Apple Inc. | Mass loaded earbud with vent chamber |
| CN105704589A (en) * | 2014-11-25 | 2016-06-22 | 富士康(昆山)电脑接插件有限公司 | Earphone |
| CN104602156A (en) * | 2015-01-27 | 2015-05-06 | 歌尔声学股份有限公司 | Earphone speaker and earphone with speaker |
| JP6588758B2 (en) * | 2015-07-21 | 2019-10-09 | 株式会社オーディオテクニカ | Noise canceling headphones |
| KR101756653B1 (en) * | 2015-12-30 | 2017-07-17 | 주식회사 오르페오사운드웍스 | Noise shielding earset with acoustic filter |
| KR101767467B1 (en) * | 2016-04-19 | 2017-08-11 | 주식회사 오르페오사운드웍스 | Noise shielding earset and method for manufacturing the earset |
| US10602260B2 (en) * | 2016-04-19 | 2020-03-24 | Orfeo Soundworks Corporation | Noise blocking bluetooth earset with integrated in-ear microphone |
| CN106028204B (en) * | 2016-07-19 | 2021-11-30 | 郑期壮 | Intelligent noise reduction earphone |
| JP6380504B2 (en) * | 2016-10-28 | 2018-08-29 | オンキヨー株式会社 | headphone |
| JP6466982B2 (en) | 2017-03-08 | 2019-02-06 | シャープ株式会社 | Wearable speaker system |
| JP7047546B2 (en) * | 2018-04-02 | 2022-04-05 | 株式会社Ｊｖｃケンウッド | Microphone and sound collection method |
| WO2020101356A1 (en) * | 2018-11-14 | 2020-05-22 | 주식회사 오르페오사운드웍스 | Earset having utterer voice restoration function |
| US20220254329A1 (en) * | 2019-02-05 | 2022-08-11 | Sony Group Corporation | Speaker unit and sound system |
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|---|---|---|---|---|
| JPH0965476A (en) * | 1995-08-23 | 1997-03-07 | Sony Corp | Earphone device |
| CN101163351A (en) * | 2006-10-13 | 2008-04-16 | 欧力天工股份有限公司 | Earphone |
| CN101431704A (en) * | 2007-11-05 | 2009-05-13 | 美律实业股份有限公司 | Earphone device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0290590A (en) * | 1988-09-28 | 1990-03-30 | Hitachi Ltd | Mounting method without damaging component |
| JPH02135845A (en) * | 1988-11-16 | 1990-05-24 | Seiko Epson Corp | Earphone type teransmitter-receiver |
| JPH05333873A (en) * | 1992-05-29 | 1993-12-17 | Sony Corp | Noise reducing device |
| JPH06217389A (en) * | 1993-01-14 | 1994-08-05 | Sony Corp | Personal electroacoustic transducer |
| JPH07115695A (en) * | 1993-10-15 | 1995-05-02 | Sony Corp | Earphone device |
| JP3947524B2 (en) * | 2004-03-29 | 2007-07-25 | ヤシマ電気株式会社 | Earphone with microphone for hearing aid |
| JP4868459B2 (en) * | 2007-09-06 | 2012-02-01 | シャープ株式会社 | Binaural recording and noise cancellation headphones |
| JP4775438B2 (en) * | 2008-12-26 | 2011-09-21 | 日本ビクター株式会社 | headphone |
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2010
- 2010-03-08 JP JP2010050411A patent/JP4652474B1/en not_active Expired - Fee Related
-
2011
- 2011-03-07 CN CN201110054882.6A patent/CN102196330B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0965476A (en) * | 1995-08-23 | 1997-03-07 | Sony Corp | Earphone device |
| CN101163351A (en) * | 2006-10-13 | 2008-04-16 | 欧力天工股份有限公司 | Earphone |
| CN101431704A (en) * | 2007-11-05 | 2009-05-13 | 美律实业股份有限公司 | Earphone device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011188177A (en) | 2011-09-22 |
| JP4652474B1 (en) | 2011-03-16 |
| CN102196330A (en) | 2011-09-21 |
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Granted publication date: 20150923 Termination date: 20170307 |