CN207897123U - A kind of noise cancelling headphone with independent wooden sound chamber - Google Patents
A kind of noise cancelling headphone with independent wooden sound chamber Download PDFInfo
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- CN207897123U CN207897123U CN201820244037.2U CN201820244037U CN207897123U CN 207897123 U CN207897123 U CN 207897123U CN 201820244037 U CN201820244037 U CN 201820244037U CN 207897123 U CN207897123 U CN 207897123U
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- wooden
- loudspeaker
- soundboard
- independent
- sound chamber
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Abstract
The utility model discloses a kind of noise cancelling headphone with independent wooden sound chamber, it include cooperate installation auricular concha, Dolby circuit plate, loudspeaker and go out soundboard, the noise cancelling headphone further includes wooden cavity, go out soundboard and is fixed on wooden cavity front end, and go out between soundboard and wooden cavity to be formed with independent wooden sound chamber, loudspeaker are fixed on wooden inside cavity, are placed in independent wooden sound bottom of chamber portion；Go out soundboard to be located in front of loudspeaker, and goes out soundboard and corresponds to the positions of loudspeaker to be provided with sound outlet hole, loudspeaker and the electric connection of Dolby circuit plate；Dolby circuit plate is installed in auricular concha, and auricular concha is installed on wooden cavity rear end；Dolby circuit plate and loudspeaker are separately mounted in different chambers by the utility model, the space and independent wooden sound chamber for making Dolby circuit board placing separate, give full play to the acoustic characteristic of independent wooden sound chamber, it is effectively improved acoustical quality, and independent wooden sound chamber can generate harmonious resonance with the sound that loudspeaker are sent out, keep sound quality more melodious, lighter and more spacious, three-dimensional sense is stronger.
Description
Technical field：
The utility model is related to earphone products technical fields, refer in particular to a kind of noise cancelling headphone with independent wooden sound chamber.
Background technology：
Earphone is a kind of device transmitting audio signal, be widely used it is general, often eventually with mobile phone, computer, MP3 etc.
Hold electronic device fit applications.Classify from the wearing mode of earphone, is broadly divided into ear type, ear suspension type, In-Ear and wear
Formula earphone.Ear type and In-Ear Headphones are easy to bring sense of discomfort to the ear of user, and clip-on type earphone is not suitable for matching hyperphoria with fixed eyeballs
The user of mirror uses, and headphone then has wide applicability.Along with the continuous hair of science and technology and electronics industry
Exhibition, higher requirements are also raised for the performance of earphone by people.
In order to enjoy music whenever and wherever possible, many people wear earphone to appreciate music, but outside environment meeting outdoors
There are many noise, noise covers normal music, reduces the music experience of earphone user, and some artificial are eliminated
The interference of noise can increase volume, and this further increases the burdens of ear, influence the hearing of user.However, dropping in the prior art
It makes an uproar the Dolby circuit plate of earphone and the electronic components such as loudspeaker is all mounted in a chamber, cause it to go out sound quality inadequate
Ideal, three-dimensional sense be not strong.
In view of this, the present inventor proposes following technical scheme.
Utility model content：
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of noise reduction with independent wooden sound chamber
Earphone.
In order to solve the above-mentioned technical problem, the utility model uses following technical proposals：There should be independent wooden sound chamber
Noise cancelling headphone include cooperate installation auricular concha, Dolby circuit plate, loudspeaker and go out soundboard, which further includes having wood
Matter cavity, it is described go out soundboard be fixed on wooden cavity front end, and this goes out between soundboard and wooden cavity to be formed with independent wooden sound
Chamber, the loudspeaker are fixed on wooden inside cavity, are placed in independent wooden sound bottom of chamber portion；It is described go out soundboard be located in front of loudspeaker,
And this goes out soundboard and corresponds to the positions of loudspeaker to be provided with sound outlet hole, which is electrically connected with the Dolby circuit plate；The noise reduction
Circuit board is installed in auricular concha, which is installed on wooden cavity rear end.
Furthermore, in above-mentioned technical proposal, the Dolby circuit plate includes the drop for detecting environmental noise
Microphone of making an uproar and for collect the environmental noise signal detected by noise reduction microphone and by environmental noise signal processing at environment
To be output to the noise reduction process module of the loudspeaker, which is installed on out on soundboard the signal of noise signal opposite in phase
And it is located at sound outlet hole side.
Furthermore, in above-mentioned technical proposal, the noise reduction process module includes to be set on Dolby circuit plate
Main control chip, the Dolby circuit being connect with main control chip, the loudspeaker anode connect the Dolby circuit, the loudspeaker by a switch
Cathode connects main control chip.
Furthermore, in above-mentioned technical proposal, the Dolby circuit includes resistance R4, is parallel to the both ends resistance R4
And the resistance R20 and resistance R16 that are connected in series with and capacitance C11 and capacitance that be parallel to the both ends resistance R4 and being connected in series with
C13, also respectively by connecting resistance R21 and/or resistance R22 ground connection between resistance R20 and resistance R16；Capacitance C11 and
Also respectively by connecting capacitance C12 and/or capacitance C14 ground connection, the one end resistance R4 connection switch between capacitance C13.
Furthermore, in above-mentioned technical proposal, it is described switch be dual control single connection plane switch, the first of the dual control single connection plane switch
Foot is connect with main control chip, and the crus secunda of the dual control single connection plane switch is connect with loudspeaker anode, the third foot of the dual control single connection plane switch
It is connect with Dolby circuit.
Furthermore, in above-mentioned technical proposal, it is described go out soundboard on be provided with mounting groove, the noise reduction microphone fixes peace
Loaded in the mounting groove.
Furthermore, in above-mentioned technical proposal, the wooden cavity is in bowl-shape.
Furthermore, it in above-mentioned technical proposal, is provided at the wooden cavity port and goes out soundboard installation described in supplying
Stepped groove, and it is provided with several screw columns in the wooden cavity；It is described go out soundboard be installed on the stepped groove, and connect with screw column
It touches, this goes out soundboard and is also fastened by screw and screw column.
Furthermore, in above-mentioned technical proposal, the stepped groove inner wall is provided with a fool proof convex block；It is described go out soundboard outside
Lateral edges are provided with fool proof groove, and the fool proof convex block inlay card is in the fool proof groove.
After adopting the above technical scheme, the utility model has the advantages that compared with prior art：This practicality
It is novel to be separately mounted on Dolby circuit plate and loudspeaker in different chambers, wherein the Dolby circuit plate is installed on auricular concha, the loudspeaker
Be installed on this and go out in the wooden sound chamber of the independence formed between soundboard and wooden cavity, you can so that the sky of Dolby circuit board placing
Between separated with independent wooden sound chamber, give full play to the acoustic characteristic of independent wooden sound chamber, be effectively improved acoustical quality, and independent wooden
Matter sound chamber can generate harmonious resonance with the sound that loudspeaker are sent out, and keep sound quality more melodious, lighter and more spacious, three-dimensional sense is stronger, ensures sound
Quality enables the utility model have the extremely strong market competitiveness.
Description of the drawings：
Fig. 1 is the stereogram of the utility model；
Fig. 2 is the stereogram at another visual angle of the utility model；
Fig. 3 is the stereogram exploded view of the utility model；
Fig. 4 is the functional-block diagram of Dolby circuit plate in the utility model；
Fig. 5 is the circuit diagram of Dolby circuit plate in the utility model.
Specific implementation mode：
The utility model is further illustrated with reference to specific embodiments and the drawings.
See shown in Fig. 1-5, for a kind of noise cancelling headphone with independent wooden sound chamber comprising the auricular concha for the installation that cooperates
1, Dolby circuit plate 2, loudspeaker 3 and go out soundboard 4 and wooden cavity 5, wherein it is described go out soundboard 4 be fixed on 5 front end of wooden cavity,
And this goes out between soundboard 4 and wooden cavity 5 to be formed with independent wooden sound chamber, the loudspeaker 3 are fixed on inside wooden cavity 5, and
It is placed in independent wooden sound bottom of chamber portion；It is described go out soundboard 4 be located at the front of loudspeaker 3, and this goes out position setting that soundboard 4 corresponds to loudspeaker 3
There is sound outlet hole 41, which is electrically connected with the Dolby circuit plate 2；The Dolby circuit plate 2 is installed in auricular concha 1, the ear
Shell 1 is installed on 5 rear end of wooden cavity.That is, Dolby circuit plate 2 and loudspeaker 3 are separately mounted on difference by the utility model
Chamber in, wherein the Dolby circuit plate 2 is installed on auricular concha 1, which is installed on this and goes out between soundboard 4 and wooden cavity 5
In the wooden sound chamber of independence of formation, you can so that the space of Dolby circuit board placing is separated with independent wooden sound chamber, give full play to
The acoustic characteristic of independent wooden sound chamber is effectively improved acoustical quality, and independent wooden sound chamber can be generated with the sound that loudspeaker are sent out
Harmony resonance, keeps sound quality more melodious, lighter and more spacious, and three-dimensional sense is stronger, ensures sound quality, and the utility model is enabled to have extremely strong city
Field competitiveness.
The wooden cavity 5 is in bowl-shape, and the loudspeaker 3 are fixed on 5 bottom of wooden cavity.
The stepped groove 51 for going out the installation of soundboard 4 described in supplying is provided at 5 port of wooden cavity, and in the wooden cavity 5
It is provided with several screw columns 52；It is described go out soundboard 4 be installed on the stepped groove 51, and contacted with screw column 52, this goes out soundboard 4 also
It is fastened by screw and screw column 52, ensures the data of product structure with this.
51 inner wall of the stepped groove is provided with a fool proof convex block 511；It is described go out 4 outer ledge of soundboard be provided with fool proof groove
43, which can guarantee out that soundboard 4 is disposable with correct installation site in the fool proof groove 43, with this
It is accurately installed on wooden cavity 5, to reach function of dead prevention, improves packaging efficiency.
The Dolby circuit plate 2 includes noise reduction microphone 21 for detecting environmental noise and for collecting by noise reduction
Environmental noise signal that microphone 21 detects and by environmental noise signal processing at the signal opposite with environmental noise signal phase
To be output to the noise reduction process module 22 of the loudspeaker, which is installed on out on soundboard 4 and by sound outlet hole 41
Side.When work, noise reduction microphone detects environmental noise, after noise reduction process module 22, output and environmental noise opposite in phase
Signal reach noise reduction to loudspeaker to offset environmental noise.
The noise reduction process module 22 includes the main control chip 221 and main control chip being set on Dolby circuit plate 2
The Dolby circuit 223 of 221 connections, 3 anode of the loudspeaker connect the Dolby circuit 223,3 cathode of loudspeaker by a switch 222
Connect main control chip 221.Wherein, the Dolby circuit 223 include resistance R4, be parallel to the both ends resistance R4 and series connection connect
The resistance R20 and resistance R16 and capacitance C11 and capacitance C13 that is being parallel to the both ends resistance R4 and being connected in series with connect, the electricity
Also respectively by connecting resistance R21 and/or resistance R22 ground connection between resistance R20 and resistance R16；Capacitance C11 and capacitance C13 it
Between also pass through respectively and connect capacitance C12 and/or capacitance C14 ground connection, the one end resistance R4 connection switch 222.
The switch 222 is dual control single connection plane switch, and the first foot of the dual control single connection plane switch is connect with main control chip 221, should
The crus secunda of dual control single connection plane switch is connect with 3 anode of loudspeaker, and the third foot of the dual control single connection plane switch is connect with Dolby circuit 223.
The circuit of the Dolby circuit plate 2 is relatively simple, and design cost is low, and the market competitiveness can be improved.
It is described go out soundboard 4 on be provided with mounting groove 42, the noise reduction microphone 21 is fixedly installed in the mounting groove 42.
In conclusion Dolby circuit plate 2 and loudspeaker 3 are separately mounted in different chambers by the utility model, wherein should
Dolby circuit plate 2 is installed on auricular concha 1, which is installed on this and goes out the wooden sound of the independence formed between soundboard 4 and wooden cavity 5
In chamber, you can so that the space of Dolby circuit board placing is separated with independent wooden sound chamber, give full play to the sound of independent wooden sound chamber
Characteristic is learned, acoustical quality is effectively improved, and independent wooden sound chamber can generate harmonious resonance with the sound that loudspeaker are sent out, and make sound quality more
Melodious, lighter and more spacious, three-dimensional sense is stronger, ensures sound quality, and the utility model is enabled to have the extremely strong market competitiveness.
Certainly, it is not to implement to limit the utility model the foregoing is merely specific embodiment of the utility model
Range, it is all according to the equivalent change or modification that structure, feature and principle is done described in present utility model application the scope of the claims, it should all wrap
It includes in present utility model application the scope of the claims.
Claims (9)
1. a kind of noise cancelling headphone with independent wooden sound chamber comprising auricular concha (1), the Dolby circuit plate for the installation that cooperates
(2), loudspeaker (3) and go out soundboard (4), it is characterised in that：The noise cancelling headphone further includes having wooden cavity (5), it is described go out soundboard (4)
It is fixed on wooden cavity (5) front end, and this goes out between soundboard (4) and wooden cavity (5) to be formed with independent wooden sound chamber, the loudspeaker
(3) it is fixed on wooden cavity (5) inside, it is placed in independent wooden sound bottom of chamber portion；It is described go out before soundboard (4) is located at loudspeaker (3)
Side, and the position for going out the corresponding loudspeaker (3) of soundboard (4) is provided with sound outlet hole (41), the loudspeaker (3) and the Dolby circuit plate
(2) it is electrically connected；The Dolby circuit plate (2) is installed in auricular concha (1), which is installed on wooden cavity (5) rear end.
2. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 1, it is characterised in that：The noise reduction electricity
Road plate (2) includes noise reduction microphone (21) for detecting environmental noise and is detected by noise reduction microphone (21) for collecting
Environmental noise signal and environmental noise signal processing is output at the signal opposite with environmental noise signal phase described
The noise reduction process module (22) of loudspeaker, the noise reduction microphone (21) are installed on out on soundboard (4) and are located at sound outlet hole (41) side.
3. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 2, it is characterised in that：At the noise reduction
It includes the main control chip (221) being set on Dolby circuit plate (2), the drop being connect with main control chip (221) to manage module (22)
Noise cancellation circuit (223), loudspeaker (3) anode connect the Dolby circuit (223) by a switch (222), which connects
Connect main control chip (221).
4. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 3, it is characterised in that：The noise reduction electricity
Road (223) includes resistance R4, be parallel to the both ends resistance R4 and the resistance R20 and resistance R16 that are connected in series with and be parallel to
The both ends resistance R4 and the capacitance C11 and capacitance C13 that are connected in series with, also pass through connection between resistance R20 and resistance R16 respectively
Resistance R21 and/or resistance R22 ground connection；Also respectively by connecting capacitance C12 and/or capacitance between capacitance C11 and capacitance C13
C14 is grounded, the one end resistance R4 connection switch (222).
5. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 4, it is characterised in that：The switch
(222) it is dual control single connection plane switch, the first foot of the dual control single connection plane switch is connect with main control chip (221), the dual control single connection plane switch
Crus secunda and loudspeaker (3) anode connect, the third foot of the dual control single connection plane switch is connect with Dolby circuit (223).
6. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 2-5 any one, it is characterised in that：
It is described go out soundboard (4) on be provided with mounting groove (42), the noise reduction microphone (21) is fixedly installed in the mounting groove (42).
7. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 1-5 any one, it is characterised in that：
The wooden cavity (5) is in bowl-shape.
8. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 1-5 any one, it is characterised in that：
The stepped groove (51) for going out soundboard (4) installation described in supplying is provided at wooden cavity (5) port, and in the wooden cavity (5)
It is provided with several screw columns (52)；It is described go out soundboard (4) be installed on the stepped groove (51), and contacted with screw column (52), this goes out
Soundboard (4) is also fastened by screw and screw column (52).
9. a kind of noise cancelling headphone with independent wooden sound chamber according to claim 8, it is characterised in that：The stepped groove
(51) inner wall is provided with a fool proof convex block (511)；It is described go out soundboard (4) outer ledge be provided with fool proof groove (43), the fool proof
Convex block (511) inlay card is in the fool proof groove (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820244037.2U CN207897123U (en) | 2018-02-09 | 2018-02-09 | A kind of noise cancelling headphone with independent wooden sound chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820244037.2U CN207897123U (en) | 2018-02-09 | 2018-02-09 | A kind of noise cancelling headphone with independent wooden sound chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207897123U true CN207897123U (en) | 2018-09-21 |
Family
ID=63543076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820244037.2U Expired - Fee Related CN207897123U (en) | 2018-02-09 | 2018-02-09 | A kind of noise cancelling headphone with independent wooden sound chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207897123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112312265A (en) * | 2020-11-05 | 2021-02-02 | 深圳市讴鸟科技有限公司 | Tuning pressure relief structure and independent acoustic cavity |
-
2018
- 2018-02-09 CN CN201820244037.2U patent/CN207897123U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112312265A (en) * | 2020-11-05 | 2021-02-02 | 深圳市讴鸟科技有限公司 | Tuning pressure relief structure and independent acoustic cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 Termination date: 20220209 |