CN107231585A - Headphone structure - Google Patents
Headphone structure Download PDFInfo
- Publication number
- CN107231585A CN107231585A CN201610177742.0A CN201610177742A CN107231585A CN 107231585 A CN107231585 A CN 107231585A CN 201610177742 A CN201610177742 A CN 201610177742A CN 107231585 A CN107231585 A CN 107231585A
- Authority
- CN
- China
- Prior art keywords
- opening
- leading note
- wall
- headphone structure
- sound
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
A kind of Headphone structure, comprising lid, with least one first opening and at least one second opening；Loudspeaker, its loud-speaker surface is connected to the back side of the lid and surrounds first opening；And box body, its inner face is provided with least one and separates wall and at least one leading note wall, the separation wall has the 3rd opening, the cover cap is together in the box body, the loudspeaker is connected to the separation wall, rear sound chamber is formed with the back side of the loudspeaker, the dividing wall body and between the box body, have leading note passage external in the dividing wall between 3rd opening and second opening, the leading note wall is located between the 3rd opening and second opening, and the rear sound chamber connects second opening via the 3rd opening and the leading note passage.Whereby, the purpose of the invention that can not excessively increase the volume and cost of earphone and reach lifting low frequency.
Description
Technical field
The present invention relates to a kind of Headphone structure, more particularly to a kind of volume that can not excessively increase earphone and
Cost and reach lifting low frequency destination device.
Background technology
When the loudspeaker start of earphone, loudspeaker can in front of it with rear simultaneously produce sound wave, front
Sound wave can constitute preceding sound field, sound field after the sound wave at rear can then be constituted.Because the phase of front and rear sound wave is firm
Well on the contrary, therefore general earphone can isolate front and rear sound wave, cancelled out each other with avoiding occurring front and rear sound wave
And cause the overall volume of earphone to decline with low frequency.In general ear phone technology field, conventional mode
It is sound chamber after setting, the sound wave (hereinafter referred to as " rear sound wave ") of rear sound field is wholly or partly enclosed in after this
Sound intracavitary, it is to avoid front and rear sound field sound wave is directly cancelled out each other.In addition, general earphone is in design, after
Sound chamber is typically closing or the state that closing is almost presented, and passes through the space of sound chamber and gas after adjustment afterwards
Discharge rate tunes up the LF-response of earphone, or lifts by setting woofer in addition earphone low frequency
Response, but earphone, after all unlike larger type speakers system, earphone is worn on head, therefore has its body
Long-pending limitation, if earphone is excessive or overweight, wear it is inconvenient also unsightly, and multi-loudspeaker is set
Meter can also increase cost.
Therefore, how to invent a kind of Headphone structure so that its can not excessively increase earphone volume and
Cost and reach lifting low frequency purpose, will be the present invention be intended to actively disclose in place of.
The content of the invention
Between the shortcoming of above-mentioned prior art, it does not reach perfection inventor's thoughts, then exhausts its intelligence and knows
Heart research overcomes, and then develops a kind of Headphone structure, and the body of earphone can not be excessively increased to reach
Product and cost and reach lifting low frequency purpose.
For up to above-mentioned purpose and other purposes, the present invention provides a kind of Headphone structure, and it is included：Lid,
It has at least one first opening and at least one second opening；Loudspeaker, its loud-speaker surface is connected to this
The back side of lid and surround this first opening；And box body, its inner face be provided with least one separate wall
And at least one leading note wall, the separation wall is with the 3rd opening, and the cover cap, should together in the box body
Loudspeaker is connected in the separation wall, the back side of the loudspeaker, the dividing wall body and shape between the box body
Cheng Youhou sound chambers, have leading note passage external in the dividing wall between the 3rd opening and second opening,
The leading note wall be located at the 3rd opening this second opening between, the rear sound chamber via the 3rd opening and
The leading note passage connects second opening.
In above-mentioned Headphone structure, the periphery of the leading note wall is connected to the back side of the lid, the box body
The side and the side of the loudspeaker of inner face, the 3rd opening of the separation wall.
In above-mentioned Headphone structure, in the rear sound intracavitary, the box body has extended out expansion slot to expand the rear sound
Chamber.
In above-mentioned Headphone structure, the leading note wall is in 1 font, arc or J-shaped.
In above-mentioned Headphone structure, the leading note passage is provided with a Sound-absorbing member.
In above-mentioned Headphone structure, also comprising annular ear pad, its connect the front of the lid and around this
One opening and second opening.
Therefore, Headphone structure of the invention can not excessively increase the volume and cost of earphone and reach lifting
The purpose of low frequency.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation one of preferred embodiment Headphone structure of the present invention；
Fig. 2 separates the schematic diagram of wall for Fig. 1 loudspeaker connection；
Fig. 3 is the combination diagram of preferred embodiment Headphone structure of the present invention；
Fig. 4 is Fig. 3 diagrammatic cross-section；
Fig. 5 is the decomposing schematic representation two of preferred embodiment Headphone structure of the present invention；
Fig. 6 is the diagrammatic cross-section after Fig. 5 Headphone structure combination；
Fig. 7 is the decomposing schematic representation three of preferred embodiment Headphone structure of the present invention；
Fig. 8 is the decomposing schematic representation four of preferred embodiment Headphone structure of the present invention.
【Symbol description】
1 lid
11 first openings
12 second openings
2 loudspeakers
21 loud-speaker surfaces
22 back sides
3 box bodys
31 separate wall
311 the 3rd openings
32 leading note walls
Sound chamber after 33
331 expansion slot
34 leading note passages
4 Sound-absorbing members
5 annular ear pads
Sound chamber before 51
Embodiment
To be fully understood by the purpose of the present invention, feature and effect, now by following specific embodiments, and
Coordinate accompanying drawing, the present invention is described in further details, is described as follows：
Fig. 1 to Fig. 4 is refer to, as illustrated, the present invention provides a kind of Headphone structure, it includes lid
1st, loudspeaker 2 and box body 3.Wherein, the lid 1 can be for plate body and with least one the first opening
11 and at least one second opening 12, this first opening 11 can be located at the lid 1 center section, should
Second opening 12, which can be located on the part beyond the centre of lid 1, the front of the lid 1, to be connected with
Sound chamber 51 before annular ear pad 5 is formed with attaching the skin near human ear, before the preceding sound chamber 51 can be formed
Sound field, the annular ear pad 5 is around first opening 11 and second opening 12；The loudspeaker 2 is raised
The outer rim in sound face 21 is connected to the back side of the lid 1 and surrounds first opening 11；The box body 3 it is interior
The bottom surface in portion is provided with least one and separates wall 31 and at least one leading note wall 32, the separation wall
31 have the 3rd opening 311, and the shape of the separation wall 31 can coordinate the shape of the loudspeaker 2 and enclose
Around in the arc-shaped, the quantity of the leading note wall 32 to should the 3rd opening 311 quantity, the lid 1
The box body 3 is covered on, the outer rim at the back side 22 of the loudspeaker 2 is connected to the separation wall 31, and this is raised
The back side 22 of sound device 2, in the separation wall 31 and the box body 3 inside bottom surface between be formed with after
Sound chamber 33, sound field after the rear sound chamber 33 can be formed, the 3rd opening 311 and this second opening 12 it
Between there is leading note passage 34 in outside the separation wall 31, the quantity of the leading note passage 34 is to should the 3rd
The quantity of opening 311, the leading note wall 32 is located between the 3rd opening 311 and second opening 12,
The rear sound chamber 33 connects second opening 12 via the 3rd opening 311 and the leading note passage 34, separately
Outside, the bottom surface of the rear sound chamber 33 and the bottom surface of the leading note passage 34 can be located at identical plane.In addition,
Fig. 7 and Fig. 8 is refer to, as illustrated, in above-mentioned Headphone structure, when the number of the separation wall 31
Amount, the quantity of the 3rd opening 311, the quantity of the quantity of the leading note wall 32 and the leading note passage 34
When being all two (or three, four, five ...), above-mentioned separation wall 31 can be waited centered on the loudspeaker 2
Angle is arranged, above-mentioned 3rd opening 311 can centered on the loudspeaker 2 and isogonism is arranged, above-mentioned leading note wall
Body 32 can centered on the loudspeaker 2 and isogonism is arranged, above-mentioned leading note passage 34 can the loudspeaker 2
Centered on and isogonism arrange.Furthermore, the sound wave at the back side 22 of the loudspeaker 2 enters after the rear sound chamber 33
The leading note passage 34 can be entered by about 90 degree of reflection, the sound wave detours to the leading note passage afterwards
After 34 tail end can again by about 90 degree reflection and by the lid 1 second opening 12, then
With by the lid 1 first be open 11 the loudspeaker 2 loud-speaker surface 21 sound wave by it is equidirectional enter
Enter in the preceding sound field.Furthermore, the leading note passage 34 is the ring from inside to outside centered on the loudspeaker 2
Around the loudspeaker 2, in order that sound wave can reduce abnormal sound along the leading note passage 34 or other are not expected
Flow perturbation, the leading note passage 34 is generally to coordinate the loudspeaker 2 and in bending, be not present
Any lofty right angle.Furthermore, the length of above-mentioned leading note passage 34 can be identical, and lateral cross-sectional area also may be used
It is identical, and respectively the lateral cross section shape of the leading note passage 34 can be rectangle or circle.Furthermore, the leading note
Lateral cross section of the passage 34 near the 3rd opening 311 can be in tapered, the leading note passage 34 afterwards
Lateral cross section can be in unanimously, and finally lateral cross section of the leading note passage 34 near second opening 12 can
In flaring.
As described above, the Headphone structure of the present invention can effectively use the sound wave of the rear sound chamber, and only
The purpose of lifting low frequency is reached in the case of the volume and cost of degree increase earphone.The Headphone structure of the present invention
Principle be：The sound wave of the rear sound field formed by rear sound chamber can make low frequency after the resonance of rear sound intracavitary
Energy increase, the low frequency energy of rear sound field is spread out of by leading note passage afterwards, and make the sound of rear sound field
Before ripple is reached during sound field, its phase is identical with the sound wave of preceding sound field, just bass can be allowed more to extend.This hair
Bright purpose is to be the design by leading note passage, and the low-frequency sound wave of rear sound field is sent into preceding sound field
In, the low frequency behavior of the whole earphone of reinforcement.
Fig. 1 to Fig. 4 is refer again to, as illustrated, in above-mentioned Headphone structure, the leading note wall 32
Periphery be connected to the back side (as shown in Figure 4) of the lid 1, the side and bottom surface of the inside of the box body 3
(as shown in Figure 1), the separation wall 31 the 3rd opening 311 side (as shown in Figure 1) and this raise one's voice
The side (as shown in Figure 2) of device 2.In addition, Fig. 7 and Fig. 8 is refer again to, as illustrated, above-mentioned
In Headphone structure, when the quantity of the leading note wall 32 is two (or three, four, five ...), each leading note
The connected mode of wall 32 is also such as Fig. 1, Fig. 2 and Fig. 4.Whereby, the leading note wall 32 can make this
The sound wave of sound field is completely sent to the preceding sound field without leaking via the leading note passage 34 afterwards.
Fig. 5 and Fig. 6 is refer to, as illustrated, in above-mentioned Headphone structure, in the rear sound chamber 33,
The box body 3 can extend out expansion slot 331 to expand the rear sound chamber 33, and the bottom surface of the rear sound chamber 33 with
The bottom surface of the leading note passage 34 can be located at different planes.Whereby, the rear sound chamber 33 can pass through the extension
Groove 331 adjusts volume.
Fig. 1, Fig. 7 and Fig. 8 are refer again to, as illustrated, in above-mentioned Headphone structure, the leading note wall
Body 32 can be in 1 font (as shown in Figure 1), arc (as shown in Figure 7) or J-shaped (as shown in Figure 8),
When the separation wall 31 is set along circular periphery, the leading note wall 32 may connect to the separation wall
31 tangential direction.Whereby, the leading note passage 34 can be by the leading note wall 32 of different shapes
The length of the leading note passage 34 is adjusted, and the length of the leading note passage 34 can then determine the sound of the rear sound field
Ripple spreads out of the opportunity of the second opening 12 of the lid 1.
Fig. 7 is refer again to, as illustrated, in above-mentioned Headphone structure, the leading note passage 34 can be set
There is Sound-absorbing member 4, the Sound-absorbing member 4 can be mushy material, such as foam, or the Sound-absorbing member 4
It can be animal and plant fiber material, be in the leading note passage 34 such as cotton, wool ..., in Fig. 7
It is illustration that part wall, which attaches the Sound-absorbing member 4 (such as foam), but the present invention also can be in the leading note passage
34 whole walls attach the Sound-absorbing member 4 (such as foam), or can be in the part of the leading note passage 34
Or all fill in the Sound-absorbing member 4 (such as cotton or wool).Whereby, the Sound-absorbing member 4 can reduce abnormal sound
Or the generation of distortion, or the sound wave of the sound wave medium-high frequency of rear sound field is can absorb, and only leave the sound of very low frequencies
Ripple.
The present invention has hereinbefore been disclosed by preferred embodiment, but being familiar with those skilled in the art should manage
Solution, the embodiment is only used for describing the present invention, and is not construed as limiting the scope of the present invention.Should
It is noted that every and the embodiment equivalent change and displacement, all should be set to be covered by the model of the present invention
In farmland.Therefore, the scope that protection scope of the present invention should be defined by claims is defined.
Claims (6)
1. a kind of Headphone structure, it is characterised in that include：
Lid, it has at least one first opening and at least one second opening；
Loudspeaker, its loud-speaker surface is connected to the back side of the lid and surrounds first opening；And
Box body, its inner face is provided with least one and separates wall and at least one leading note wall, the dividing wall
Body has the 3rd opening, and the cover cap is together in the box body, and the loudspeaker is connected to the separation wall, and this is raised
The back side of sound device, be formed with rear sound chamber in the dividing wall body and between the box body, the 3rd opening and this
External in the dividing wall with leading note passage between two openings, the leading note wall is located at the 3rd opening with being somebody's turn to do
Between second opening, the rear sound chamber connects second opening via the 3rd opening and the leading note passage.
2. Headphone structure as claimed in claim 1, it is characterised in that the periphery of the leading note wall connects
Be connected to the back side of the lid, the inner face of the box body, the side of the 3rd opening of the separation wall and this raise one's voice
The side of device.
3. Headphone structure as claimed in claim 1, it is characterised in that in the rear sound intracavitary, the box
External expand has expansion slot to expand the rear sound chamber.
4. Headphone structure as claimed in claim 1, it is characterised in that the leading note wall in 1 font,
Arc is J-shaped.
5. Headphone structure as claimed in claim 1, it is characterised in that the leading note passage is provided with suction
Sound component.
6. Headphone structure as claimed in claim 1, it is characterised in that also comprising annular ear pad, its
Connect the front of the lid and around first opening and second opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177742.0A CN107231585A (en) | 2016-03-25 | 2016-03-25 | Headphone structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177742.0A CN107231585A (en) | 2016-03-25 | 2016-03-25 | Headphone structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107231585A true CN107231585A (en) | 2017-10-03 |
Family
ID=59931824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610177742.0A Pending CN107231585A (en) | 2016-03-25 | 2016-03-25 | Headphone structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107231585A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963221A (en) * | 2019-01-02 | 2019-07-02 | 艾维克科技股份有限公司 | It may extend away and promoted the Headphone structure of resonance |
| WO2020220719A1 (en) * | 2019-04-30 | 2020-11-05 | 深圳市韶音科技有限公司 | Acoustic output device |
| US11570556B2 (en) | 2014-01-06 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582564B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582563B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11617045B2 (en) | 2014-01-06 | 2023-03-28 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11622209B2 (en) | 2014-01-06 | 2023-04-04 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11706574B2 (en) | 2014-01-06 | 2023-07-18 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2636560Y (en) * | 2003-07-10 | 2004-08-25 | 何玉成 | Acoustic consonance amplifying voice box |
| CN1605223A (en) * | 2001-08-24 | 2005-04-06 | Mm音响器机株式会社 | Bass reflex-type headphone |
| TWM478308U (en) * | 2014-01-23 | 2014-05-11 | Merry Electronics Co Ltd | Earphone with three-dimensional bass channel |
| CN203761566U (en) * | 2014-01-24 | 2014-08-06 | 美律电子（惠州）有限公司 | Earphone with stereo bass channel |
| CN204145702U (en) * | 2014-09-05 | 2015-02-04 | 歌尔声学股份有限公司 | A kind of earphone |
| CN204334906U (en) * | 2015-01-14 | 2015-05-13 | 捷音特科技股份有限公司 | There is the Headphone structure of sound guide tube |
| CN204559878U (en) * | 2015-04-29 | 2015-08-12 | 高健 | A kind of 5 conduit 5 unit combination move iron earphone |
-
2016
- 2016-03-25 CN CN201610177742.0A patent/CN107231585A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605223A (en) * | 2001-08-24 | 2005-04-06 | Mm音响器机株式会社 | Bass reflex-type headphone |
| CN2636560Y (en) * | 2003-07-10 | 2004-08-25 | 何玉成 | Acoustic consonance amplifying voice box |
| TWM478308U (en) * | 2014-01-23 | 2014-05-11 | Merry Electronics Co Ltd | Earphone with three-dimensional bass channel |
| CN203761566U (en) * | 2014-01-24 | 2014-08-06 | 美律电子（惠州）有限公司 | Earphone with stereo bass channel |
| CN204145702U (en) * | 2014-09-05 | 2015-02-04 | 歌尔声学股份有限公司 | A kind of earphone |
| CN204334906U (en) * | 2015-01-14 | 2015-05-13 | 捷音特科技股份有限公司 | There is the Headphone structure of sound guide tube |
| CN204559878U (en) * | 2015-04-29 | 2015-08-12 | 高健 | A kind of 5 conduit 5 unit combination move iron earphone |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11570556B2 (en) | 2014-01-06 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11706574B2 (en) | 2014-01-06 | 2023-07-18 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11622209B2 (en) | 2014-01-06 | 2023-04-04 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11617045B2 (en) | 2014-01-06 | 2023-03-28 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582563B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582564B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| CN109963221A (en) * | 2019-01-02 | 2019-07-02 | 艾维克科技股份有限公司 | It may extend away and promoted the Headphone structure of resonance |
| US11178477B2 (en) | 2019-04-30 | 2021-11-16 | Shenzhen Voxtech Co., Ltd. | Acoustic output apparatus with a plurality of acoustic drivers and methods thereof |
| US11570536B2 (en) | 2019-04-30 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Acoustic output apparatus and methods thereof |
| US11496824B2 (en) | 2019-04-30 | 2022-11-08 | Shenzhen Shokz Co., Ltd. | Acoustic output apparatus with drivers in multiple frequency ranges and bluetooth low energy receiver |
| US11516572B2 (en) | 2019-04-30 | 2022-11-29 | Shenzhen Shokz Co., Ltd. | Acoustic output device |
| US11540038B2 (en) | 2019-04-30 | 2022-12-27 | Shenzhen Shokz Co., Ltd. | Acoustic device |
| US11540037B2 (en) | 2019-04-30 | 2022-12-27 | Shenzhen Shokz Co., Ltd. | Open earphone |
| US11425481B2 (en) | 2019-04-30 | 2022-08-23 | Shenzhen Shokz Co., Ltd. | Open earphone |
| US11445281B2 (en) | 2019-04-30 | 2022-09-13 | Shenzhen Shokz Co., Ltd. | Acoustic output apparatus |
| US11356763B2 (en) | 2019-04-30 | 2022-06-07 | Shenzhen Shokz Co., Ltd. | Open earphone |
| US11159870B2 (en) | 2019-04-30 | 2021-10-26 | Shenzhen Voxtech Co., Ltd. | Acoustic output apparatus |
| US11122359B2 (en) | 2019-04-30 | 2021-09-14 | Shenzhen Voxtech Co., Ltd. | Acoustic output apparatus and method thereof |
| US11115774B2 (en) | 2019-04-30 | 2021-09-07 | Shenzhen Voxtech Co., Ltd. | Acoustic output apparatus |
| US11678098B2 (en) | 2019-04-30 | 2023-06-13 | Shenzhen Shokz Co., Ltd. | Acoustic output apparatus |
| WO2020220719A1 (en) * | 2019-04-30 | 2020-11-05 | 深圳市韶音科技有限公司 | Acoustic output device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20171003 |