CN103313162B - A kind of Dual-speaker headphone - Google Patents
A kind of Dual-speaker headphone Download PDFInfo
- Publication number
- CN103313162B CN103313162B CN201310257305.6A CN201310257305A CN103313162B CN 103313162 B CN103313162 B CN 103313162B CN 201310257305 A CN201310257305 A CN 201310257305A CN 103313162 B CN103313162 B CN 103313162B
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- bass
- dual
- auricular concha
- curved surface
- 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.)
- Active
Links
Landscapes
- Headphones And Earphones (AREA)
Abstract
The invention provides a kind of Dual-speaker headphone, comprise hollow auricular concha and be arranged in the bass passive radiator of auricular concha and the high and low sound loudspeaker of opposing setting; Auricular concha inner chamber is spaced apart the ante-chamber placing loudspeaker and the back cavity placing bass horn by described bass passive radiator, the structural edge of described bass horn and loudspeaker is smooth curved surface, sounding face is all towards outside auricular concha, and the sounding face front of the front, the back side of described bass horn and loudspeaker is equipped with cone-shaped diffuser; Described auricular concha is for forming in the part of back cavity, and the region relative with described bass horn sounding face is net cover structure, and the region connected with described bass passive radiator is provided with all presses paraphase hole or all presses phase-reversing tube; Also be provided with in described ante-chamber with all pressing paraphase hole or all pressing the independent operatic tunes of phase-reversing tube, described loudspeaker is arranged in the described independent operatic tunes; This Headphone structure can suppress that wind is made an uproar, standing wave produces, and improves sound pressure equalization characteristic, reduces ear-drum constriction.
Description
Technical field
The present invention relates to ear phone technology field, particularly relate to a kind of Dual-speaker headphone.
Background technology
As shown in Figure 1, the acoustic construction of existing headphone generally comprises auricular concha 10, is positioned at the loudspeaker (loud speaker) 11 of auricular concha 10 inside, is nested in the earmuff 12 on auricular concha, auricular concha 10 is generally made up of forward and backward shell, under the interval of loudspeaker 11, form ante-chamber 13 and back cavity 14 respectively.Wherein, the structure section of loudspeaker 11 and face meet rib place (as shown in dotted line frame a, b in Fig. 1) and are corner angle point Ming Dynasty style and design, the design of almost parallel formula mostly is between the vibrating diaphragm sounding face 110 of loudspeaker 11 and auricular concha 10 forward and backward shell surface, and back cover mostly is closed design, only increase simple balancing orifice 100 where necessary to adjust the sound pressure equalization characteristic of front/back cavity.
There is following defect in the acoustic construction design of existing headphone:
1, there is wind to make an uproar: design because the structure section of loudspeaker and face wiring place are corner angle point Ming Dynasty style, so when the instant acoustic velocity of front/back cavity inside is larger, modulation sound wave (wind is made an uproar) is disturbed in the pulsation that can produce cutting steam flow mutually, and the definition of head ear-phone system sound can be made when this sound wave produces more to have decline to a certain degree.
2, standing wave causes distortion: mostly be the design of almost parallel formula between the vibrating diaphragm sounding face of earphone horn and forward and backward shell surface under normal circumstances, thus more standing wave can be there is, the acoustic pressure in cavity on some point is caused to strengthen and some point weakens, therefore make acoustic pressure in chamber, front and back uneven, so the acoustic pressure after synthesis is uneven and cause sound distortion.
3, low-frequency sound pressure causes constriction to ear-drum: to sound horn energy, main energetic concentrates on low-frequency range, and the back cover of conventional headphone (for low frequency) mostly is closed design, the acoustic pressure of this back cover and back cavity only increases balancing orifice where necessary, so can produce constriction to ear-drum.
4, front/back cavity sound wave is balanced not good with resonant selecting frequency characteristic: earphone back cover only adopts balancing orifice to adjust the sound pressure equalization characteristic of front/back cavity usually, easily cause in sound pressure equalization process inconsistent to the acoustic pressure synthesis of certain frequency range, affect the equilibrium of front/back cavity sound wave and resonant selecting frequency characteristic.
Therefore, need a kind of Dual-speaker headphone, to avoid above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of Dual-speaker headphone, can suppress that wind is made an uproar, the generation of standing wave, improve sound pressure equalization characteristic, reduce the constriction that low-frequency sound pressure causes ear-drum.
For solving the problem, the invention provides a kind of Dual-speaker headphone, comprising hollow auricular concha and being arranged in the bass passive radiator of auricular concha and the high and low sound loudspeaker of opposing setting; Auricular concha inner chamber is spaced apart the ante-chamber placing loudspeaker and the back cavity placing bass horn by described bass passive radiator, the structural edge of described bass horn and loudspeaker is smooth curved surface, sounding face is all towards outside auricular concha, and the sounding face front of the front, the back side of described bass horn and loudspeaker is equipped with cone-shaped diffuser; Described auricular concha is for forming in the part of back cavity, and the region relative with described bass horn sounding face is guard, and the region connected with described bass passive radiator is provided with all presses paraphase hole or all presses phase-reversing tube; Also be provided with in described ante-chamber with all pressing paraphase hole or all pressing the independent operatic tunes of phase-reversing tube, described loudspeaker is arranged in the described independent operatic tunes.
Further, described guard is the globoidal structure outwards arched upward, and has space between the sounding face of described bass horn.
Further, described guard is steel mesh, and the diameter of every root steel mesh silk is at more than 0.8mm.
Further, the arm of angle length of the chamfering of the structural edge of described high and low sound loudspeaker is at more than 1.5mm.
Further, described auricular concha is for forming in the part of back cavity, the lower regions connected with described bass passive radiator is equipped with all presses paraphase hole or all presses phase-reversing tube, describedly all press paraphase hole or all press the edge of phase-reversing tube to be smooth curved surface, the arm of angle length of the chamfering at described edge is at more than 1.5mm.
Further, the surrounding of described bass horn is also provided with curved surface sound absorber, and the curved surface of described curved surface sound absorber extends to described auricular concha from the front end, side of bass horn.
Further, the cone-shaped diffuser at the described bass horn back side is the structure of two facies basialis pyramidis docking.
Further, the cavity wall of the described independent operatic tunes is smooth curved surface.
Further, the sidewall of described ante-chamber is provided with curved surface sound-conducting body, and the curved surface of described curved surface sound-conducting body extends to the front end of described ante-chamber from described bass passive radiator joint.
Further, described bass passive radiator is plate cone, and edge is provided with ring.
Compared with prior art, Dual-speaker headphone provided by the invention, comprises hollow auricular concha and is arranged in the bass passive radiator of auricular concha and the high and low sound loudspeaker of opposing setting; Auricular concha inner chamber is spaced apart the ante-chamber placing loudspeaker and the back cavity placing bass horn by described bass passive radiator, the structural edge of described bass horn and loudspeaker is smooth curved surface, sounding face is all towards outside auricular concha, and the sounding face front of the front, the back side of described bass horn and loudspeaker is equipped with cone-shaped diffuser; Described auricular concha is for forming in the part of back cavity, and the region relative with described bass horn sounding face is net cover structure, and the region connected with described bass passive radiator is provided with all presses paraphase hole or all presses phase-reversing tube; Also be provided with in described ante-chamber with all pressing paraphase hole or all pressing the independent operatic tunes of phase-reversing tube, described loudspeaker is arranged in the described independent operatic tunes.Dual-speaker headphone of the present invention, the generation that inhibit the wind under high velocity air to make an uproar by edge smooth curved surface and the paraphase hole of guard and high and low sound loudspeaker; Described ante-chamber comprises the passive type bass operatic tunes and the independent operatic tunes, the bass component coefficient of elasticity of loudspeaker is reduced greatly, do not reduce its operating efficiency simultaneously, and make high and low sound loudspeaker separately independent, the independence making it carry out electromagnetic force on respective magnetic circuit controls, thus the elastic equilibrium reached on high and low sound range, improve sound pressure equalization flatness at lower frequency region, reduce acoustic pressure to the constriction of ear-drum; Simultaneously by the cone-shaped diffuser on high and low sound loudspeaker and all press paraphase hole or all press phase-reversing tube, high velocity air in chamber is redirected distribution, avoid column type high velocity air and the direct collision of face, chamber and air-flow is torn, thus suppressing the generation of standing wave to a certain extent.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of headphone in prior art;
Fig. 2 is the structural representation of the Dual-speaker headphone of the specific embodiment of the invention;
Fig. 3 is that the high and low speech of the Dual-speaker headphone shown in Fig. 2 presses balanced sound travel figure;
Fig. 4 be the Dual-speaker headphone shown in Fig. 2 chamber in air-flow guiding figure.
Embodiment
Core concept of the present invention is open a kind of Dual-speaker headphone, comprises hollow auricular concha and is arranged in the bass passive radiator of auricular concha and the high and low sound loudspeaker of opposing setting; Auricular concha inner chamber is spaced apart the ante-chamber placing loudspeaker and the back cavity placing bass horn by described bass passive radiator, the structural edge of described bass horn and loudspeaker is smooth curved surface, sounding face is all towards outside auricular concha, and the sounding face front of the front, the back side of described bass horn and loudspeaker is equipped with cone-shaped diffuser; Described auricular concha is for forming in the part of back cavity, and the region relative with described bass horn sounding face is net cover structure, and the region connected with described bass passive radiator is provided with all presses paraphase hole or all presses phase-reversing tube; Also be provided with in described ante-chamber with all pressing paraphase hole or all pressing the independent operatic tunes of phase-reversing tube, described loudspeaker is arranged in the described independent operatic tunes.Dual-speaker headphone of the present invention, the generation that inhibit the wind under high velocity air to make an uproar by edge smooth curved surface and the paraphase hole of guard and high and low sound loudspeaker; Described ante-chamber comprises the passive type bass operatic tunes and the independent operatic tunes, the bass component coefficient of elasticity of loudspeaker is reduced greatly, do not reduce its operating efficiency simultaneously, and make high and low sound loudspeaker separately independent, the independence making it carry out electromagnetic force on respective magnetic circuit controls, thus the elastic equilibrium reached on high and low sound range, improve sound pressure equalization flatness at lower frequency region, reduce acoustic pressure to the constriction of ear-drum; Simultaneously by the cone-shaped diffuser on high and low sound loudspeaker and all press paraphase hole or all press phase-reversing tube, high velocity air in chamber is redirected distribution, avoid column type high velocity air and the direct collision of face, chamber and air-flow is torn, thus suppressing the generation of standing wave to a certain extent.
For making object of the present invention, feature becomes apparent, and be further described, but the present invention can realize by different forms, should not think and just be confined to described embodiment below in conjunction with accompanying drawing to the specific embodiment of the present invention.
Please refer to Fig. 2, the present embodiment provides a kind of headphone, comprises two Dual-speaker headphone and the headband being connected two Dual-speaker headphone.The earmuff 214 that described Dual-speaker headphone comprises hollow auricular concha 200 and is arranged in the bass passive radiator 201 of auricular concha 200 and the high and low sound loudspeaker 207,206 of opposing setting and is nested on auricular concha 200.Described bass passive radiator 201 can be plate cone, end is provided with ring 201a, auricular concha 200 inner chamber is spaced apart the ante-chamber placing loudspeaker 207 and the back cavity 202 placing bass horn 206 by this bass passive radiator 201, and described bass horn 206 and loudspeaker 207 sounding face are all towards outside auricular concha, the i.e. sounding face of bass horn 206 duct placement dorsad, loudspeaker 207 is placed in the independent operatic tunes isolated in ante-chamber, and sounding face is placed towards duct.Wherein, the chamber that in ante-chamber, auricular concha and independent operatic tunes wall are formed is the passive type bass operatic tunes 203, and the independent operatic tunes 204 communicates with the passive type bass operatic tunes 203 by all pressing paraphase hole 209.Back cavity 202 is the open active independent bass operatic tunes, the region place that back cavity shell connects with described bass passive radiator 201 arranges and all presses phase-reversing tube 208, the region relative with described bass horn 206 sounding face is guard 205, back cavity 202 communicates with the external world by all pressing phase-reversing tube 208, outwardly broadcasts sound by guard 205.
Wherein, described guard 205 is the cambered surface steel net structure outwards arched upward, the diameter of every root steel mesh silk at more than 0.8mm, the cambered surface of guard 205 and the sounding face of described bass horn 206 not parallel, between have space.
In the present embodiment, the pipe of phase-reversing tube 208 of all pressing of back cavity 202 is all smooth curved surface structure along the hole of all pressures paraphase hole 209 on 210a and the independent operatic tunes 204 along 210c, and the arm of angle length of the chamfering at edge is at more than 1.5mm, the structural edge of described bass horn 206 and loudspeaker 207 is smooth curved surface simultaneously, and the arm of angle length of the chamfering at edge is at more than 1.5mm.Above-mentioned rounded edges structure, modulation sound wave is disturbed in the pulsation that can produce cutting steam flow when the instant acoustic velocity of inside cavity can be prevented larger mutually, reduce wind to make an uproar, eliminate existing the angular structures of the face of horn structure in earphone and the circumscribing edge in face and interior edge fit edge is brought unfavorable.
In the present embodiment, the acoustic vibration of back cavity 202 can cause the vibration of bass passive radiator 201, thus causes the acoustic vibration in the passive type bass operatic tunes 203.The surrounding of described bass horn 206 is also provided with curved surface sound absorber 213, and the curved surface of described curved surface sound absorber 213 extends to described auricular concha 200 from the front end, side of bass horn 206; The cavity wall of the described independent operatic tunes 204 is smooth curved surface, in conjunction with all press paraphase hole 209, can carry out acoustic conductance to; The sidewall of the passive type bass operatic tunes 203 is provided with curved surface sound-conducting body 210b, the curved surface of described curved surface sound-conducting body 210b extends to the front end of the described passive type bass operatic tunes 203 from described bass passive radiator 201 joint, and the side curve of the curved surface of curved surface sound-conducting body 210b and the cavity wall of the independent operatic tunes 204 is recessed to contrary, has hyperbolic characteristic or reverse hyperbolic characteristic.
In the present embodiment, be provided with cone-shaped diffuser 211 in the front, the back side of described bass horn, cone-shaped diffuser 211 is the structure of two facies basialis pyramidis docking, and its edge is smooth curved surface (also can regard fillet as), and its section is equivalent to two groups of hyperbolas; The sounding face front of loudspeaker 207 is provided with cone-shaped diffuser 212, and its edge is also smooth curved surface (also can regard fillet as), and bottom is cambered surface, not parallel with the sounding face of described loudspeaker 207.
Please refer to Fig. 3 and Fig. 4, the Dual-speaker headphone of the present embodiment, have employed the cone-shaped diffuser 211 of basso and the cone-shaped diffuser 212 of high line and there is smooth curved surface and all press the structural design of the independent operatic tunes 204 of paraphase hole 209 structure, the angle of the cavity plane of bass horn 206 sounding face and bass passive radiator 201 and back cavity 202 can be regulated, regulate the angle of the cavity plane of loudspeaker 207 sounding face and bass passive radiator 201 and the passive type bass operatic tunes 203, and the high velocity air in the passive type bass operatic tunes 203 is redirected the front (near duct place) being assigned to the passive type bass operatic tunes 203, avoid the direct collision of the cavity wall of column type high velocity air and the passive type bass operatic tunes 203 and the independent operatic tunes 204, thus prevent air-flow from tearing and form polyphase factorization air-flow group, thus the standing wave point be synthesized can be suppressed to a certain extent, namely the acoustic construction of above-mentioned Dual-speaker headphone is adopted to design, the standing wave that can carry out from standing wave mechanism of production source to a certain degree suppresses.
Please continue to refer to Fig. 3 and Fig. 4, the Dual-speaker headphone of the present embodiment, have employed guard 205 and form open bass horn 206 mounting structure, have employed back cavity (the independent active bass operatic tunes) 202 simultaneously, bass passive radiator 201, the independent passive type bass operatic tunes 203 and bass all press the structural design of phase-reversing tube 208, to a great extent high-octane bass component coefficient of elasticity can be reduced greatly, but do not reduce its operating efficiency thus controller perturbation can be carried out separately, in addition because bass horn 206 and loudspeaker 207 are separately independently, therefore the independence also can carrying out electromagnetic force on respective magnetic circuit controls, thus reach high, elastic equilibrium on bass range, and then the constriction that reduction low-frequency sound pressure causes ear-drum.
Please continue to refer to Fig. 3 and Fig. 4, the Dual-speaker headphone of the present embodiment, its back cavity has and all presses phase-reversing tube 208, the independent operatic tunes 204 is provided with all presses paraphase hole 209, this design can independently regulate high, the equilibrium synthesis acoustic pressure of lower frequency region, and can individually adjust in certain resonance frequency, excellent its is in low-frequency range, sound travel is regulated to be set in sounding face (the i.e. positive radiating surface) place all pressing phase-reversing tube 208 and bass horn 206 main sound pressure equalization, can make to be turned into an acoustic branch by the gap (producing gap because elasticity between face with earmuff affects the flatness of earmuff) between earmuff 214 and user face to the balanced sound travel of bass horn 206 sounding face, thus improve sound pressure equalization flatness at lower frequency region, and then before improving, the equilibrium of back cavity sound wave and resonant selecting frequency characteristic.
In sum, Dual-speaker headphone provided by the invention, comprises hollow auricular concha and is arranged in the bass passive radiator of auricular concha and the high and low sound loudspeaker of opposing setting; Auricular concha inner chamber is spaced apart the ante-chamber placing loudspeaker and the back cavity placing bass horn by described bass passive radiator, the structural edge of described bass horn and loudspeaker is smooth curved surface, sounding face is all towards outside auricular concha, and the sounding face front of the front, the back side of described bass horn and loudspeaker is equipped with cone-shaped diffuser; Described auricular concha is for forming in the part of back cavity, and the region relative with described bass horn sounding face is net cover structure, and the region connected with described bass passive radiator is provided with all presses paraphase hole or all presses phase-reversing tube; Also be provided with in described ante-chamber with all pressing paraphase hole or all pressing the independent operatic tunes of phase-reversing tube, described loudspeaker is arranged in the described independent operatic tunes.The structural design of Dual-speaker headphone of the present invention, can suppress that wind is made an uproar, the generation of standing wave, improves sound pressure equalization characteristic, reduces the constriction that low-frequency sound pressure causes ear-drum.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a Dual-speaker headphone, is characterized in that, comprises hollow auricular concha and is arranged in the bass passive radiator of auricular concha and the high and low sound loudspeaker of opposing setting; Auricular concha inner chamber is spaced apart the ante-chamber placing loudspeaker and the back cavity placing bass horn by described bass passive radiator, the structural edge of described bass horn and loudspeaker is smooth curved surface, sounding face is all towards outside auricular concha, and the sounding face front of the front, the back side of described bass horn and loudspeaker is equipped with cone-shaped diffuser; Described auricular concha is for forming in the part of back cavity, and the region relative with described bass horn sounding face is guard, and the region connected with described bass passive radiator is provided with all presses paraphase hole or all presses phase-reversing tube; Also be provided with in described ante-chamber with all pressing paraphase hole or all pressing the independent operatic tunes of phase-reversing tube, described loudspeaker is arranged in the described independent operatic tunes.
2. Dual-speaker headphone as claimed in claim 1, it is characterized in that, described guard is the globoidal structure outwards arched upward, and has space between the sounding face of described bass horn.
3. Dual-speaker headphone as claimed in claim 1 or 2, it is characterized in that, described guard is steel mesh, and the diameter of every root steel mesh silk is at more than 0.8mm.
4. Dual-speaker headphone as claimed in claim 1, it is characterized in that, the arm of angle length of the chamfering of the structural edge of described high and low sound loudspeaker is at more than 1.5mm.
5. Dual-speaker headphone as claimed in claim 1, it is characterized in that, described auricular concha is for forming in the part of back cavity, the lower regions connected with described bass passive radiator is equipped with all presses paraphase hole or all presses phase-reversing tube, describedly all press paraphase hole or all press the edge of phase-reversing tube to be smooth curved surface, the arm of angle length of the chamfering at described edge is at more than 1.5mm.
6. Dual-speaker headphone as claimed in claim 1, it is characterized in that, the surrounding of described bass horn is also provided with curved surface sound absorber, and the curved surface of described curved surface sound absorber extends to described auricular concha from the front end, side of bass horn.
7. Dual-speaker headphone as claimed in claim 1, is characterized in that, the cone-shaped diffuser at the described bass horn back side is the structure of two facies basialis pyramidis docking.
8. Dual-speaker headphone as claimed in claim 1, it is characterized in that, the cavity wall of the described independent operatic tunes is smooth curved surface.
9. Dual-speaker headphone as claimed in claim 1, it is characterized in that, the sidewall of described ante-chamber is provided with curved surface sound-conducting body, and the curved surface of described curved surface sound-conducting body extends to the front end of described ante-chamber from described bass passive radiator joint.
10. Dual-speaker headphone as claimed in claim 1, it is characterized in that, described bass passive radiator is plate cone, and edge is provided with ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257305.6A CN103313162B (en) | 2013-06-26 | 2013-06-26 | A kind of Dual-speaker headphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257305.6A CN103313162B (en) | 2013-06-26 | 2013-06-26 | A kind of Dual-speaker headphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103313162A CN103313162A (en) | 2013-09-18 |
| CN103313162B true CN103313162B (en) | 2016-03-16 |
Family
ID=49137859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310257305.6A Active CN103313162B (en) | 2013-06-26 | 2013-06-26 | A kind of Dual-speaker headphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103313162B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811848B (en) * | 2014-12-23 | 2017-04-12 | 北京太和开元科技有限公司 | Sound production device |
| CN108632701A (en) * | 2017-03-17 | 2018-10-09 | 宁波升亚电子有限公司 | Headphone and its loudspeaker arrangement and manufacturing method |
| AU2018243565B2 (en) * | 2017-03-30 | 2023-03-16 | Magic Leap, Inc. | Non-blocking dual driver earphones |
| CN108566604B (en) * | 2018-06-04 | 2020-12-08 | 歌尔股份有限公司 | Sound production device module and electronic equipment |
| TWI683581B (en) * | 2018-11-29 | 2020-01-21 | 艾維克科技股份有限公司 | Headphone structure capable of extending and improving resonance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004004889U1 (en) * | 2004-03-29 | 2004-05-27 | Han, David | Earpiece for headphone or ear protection, whose structure contains integral, injection moulded loudspeaker support plate for rapid fitting of batteries and loudspeaker, with ear piece |
| CN200959661Y (en) * | 2005-12-29 | 2007-10-10 | 颜怀伟 | Double-winding and coiling cocurrent moving-coiling loundspeaker and amplifying and controlling circuit |
| CN102932706A (en) * | 2012-10-22 | 2013-02-13 | 歌尔声学股份有限公司 | Headset with two built-in loudspeakers and signal processing method of headset |
| CN203289620U (en) * | 2013-06-26 | 2013-11-13 | 青岛歌尔声学科技有限公司 | Double-speaker earphone |
-
2013
- 2013-06-26 CN CN201310257305.6A patent/CN103313162B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004004889U1 (en) * | 2004-03-29 | 2004-05-27 | Han, David | Earpiece for headphone or ear protection, whose structure contains integral, injection moulded loudspeaker support plate for rapid fitting of batteries and loudspeaker, with ear piece |
| CN200959661Y (en) * | 2005-12-29 | 2007-10-10 | 颜怀伟 | Double-winding and coiling cocurrent moving-coiling loundspeaker and amplifying and controlling circuit |
| CN102932706A (en) * | 2012-10-22 | 2013-02-13 | 歌尔声学股份有限公司 | Headset with two built-in loudspeakers and signal processing method of headset |
| CN203289620U (en) * | 2013-06-26 | 2013-11-13 | 青岛歌尔声学科技有限公司 | Double-speaker earphone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103313162A (en) | 2013-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9654865B2 (en) | Earphone | |
| US10178481B2 (en) | Sound producing device | |
| CN103313162B (en) | A kind of Dual-speaker headphone | |
| JP7250993B1 (en) | coaxial speaker | |
| WO2022213457A1 (en) | Acoustic device | |
| US9277324B2 (en) | Three part membrane speaker | |
| WO2018157535A1 (en) | Speaker and earplug earphones | |
| CN104244130A (en) | Earphone | |
| US10462553B2 (en) | Speaker device | |
| CN204145702U (en) | A kind of earphone | |
| US9241055B1 (en) | Two-way passive acoustic concentrator for a mobile phone | |
| CN105100996A (en) | Two-in-one loudspeaker unit and headset | |
| CN104320601B (en) | A kind of flat panel TV | |
| CN104105025A (en) | Trumpet structure with integrated active loudspeaker and passive radiator, and sound box | |
| CN113163297B (en) | Audio device and intelligent head-mounted equipment | |
| WO2019184476A1 (en) | Loudspeaker module | |
| CN204442638U (en) | The television set of closed multi-cavity bass box and this bass box built-in | |
| CN205987287U (en) | Novel operatic tunes structure earphone | |
| CN219248033U (en) | Earphone cavity structure capable of optimizing high-frequency response | |
| CN204518027U (en) | Reverse sound wave earphone | |
| CN203289620U (en) | Double-speaker earphone | |
| CN204316703U (en) | Two rear sound chambeies earphone | |
| WO2021000117A1 (en) | Loudspeaker | |
| CN202587345U (en) | Bar-shaped sound device and television equipped with the same | |
| TWM625261U (en) | Sound cavity module of feedback active noise cancellation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |