CN107454497A - A kind of earphone with decrease of noise functions - Google Patents
A kind of earphone with decrease of noise functions Download PDFInfo
- Publication number
- CN107454497A CN107454497A CN201710855799.6A CN201710855799A CN107454497A CN 107454497 A CN107454497 A CN 107454497A CN 201710855799 A CN201710855799 A CN 201710855799A CN 107454497 A CN107454497 A CN 107454497A
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- wheat
- noise reduction
- noise
- central axis
- 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.)
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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
- H04R1/1083—Reduction of ambient noise
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention relates to headphone technical field, refer in particular to a kind of earphone with decrease of noise functions, including loudspeaker unit, elastic head beam, the pars contractilis being flexibly connected with elastic head beam and the loudspeaker support being flexibly connected with loudspeaker unit, the loudspeaker unit includes body, loudspeaker and the enclosing cover being fastened with body, sound transmitting window is provided with the middle part of body, the side of the sound transmitting window is provided with wheat seat, the wheat seat and this body by integral forming, noise reduction wheat is fixedly embedded in the wheat seat, geometrical central axis of the sound collection of noise reduction wheat facing to the loudspeaker, and the geometrical central axis of noise reduction wheat and the geometrical central axis of loudspeaker are mutually perpendicular to.After improved structure using the present invention, the noise sound wave signal of surrounding environment collected by noise reduction wheat becomes apparent from, after calculation process by conventional audio digital circuit, the acoustic signals of its opposite polarity drawn according to above-mentioned noise data computing are more accurate, greatly improve the noise reduction of noise cancelling headphone.
Description
Technical field
The present invention relates to headphone technical field, refers in particular to a kind of earphone with decrease of noise functions.
Background technology
Noise cancellation method is designed to reduce undesired ambient sound by using audio frequency apparatus (for example, earphone)
Sound.Ambient sound is referred to as the background sound pressure level (soundpressure level) occurred in any given position.In order to set
Noise canceling system is counted, audio-source (for example, earphone) must launch with the ambient sound phase with occurring at wearer's ear
Same amplitude but the sound wave of opposite polarity.Ambient sound waves and the sound wave combination from earphone, to form new ripple, wherein, have
Effect ground, at wearer's ear, in the processing of elimination of the phase is referred to as, two ripples cancel one another out.Gained ambient sound waves may
In such low amplitude, so that can not be heard for human ear.
Modern noise cancelling headphone (noise cancelling headphone) system is (for example, the institutes of patent US 5,825,897
The system shown) signal processing circuit is used, it obtains ambient sound waveform by using microphone, and above-mentioned via earphone output
Sound wave with opposite polarity.But in the prior art, designer puts into more in Audio Signal Processing, but in earphone
The improvement of portion's structure is not ideal enough, causes the noise reduction of noise cancelling headphone to be difficult to further be lifted all the time, and because simulation is put
The distortion of big-and-middle appearance and cause noise reduction bad.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in construction, easy to assembly and noise reduction more preferably to have
The earphone of decrease of noise functions.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：A kind of earphone with decrease of noise functions, bag
Include loudspeaker unit, elastic head beam, the pars contractilis being flexibly connected with elastic head beam and what is be flexibly connected with loudspeaker unit raise one's voice
Device support, the enclosing cover that the loudspeaker unit includes body, is fixed on the loudspeaker of outer body and is fastened with body, this
Sound transmitting window is provided with the middle part of body, the side of the sound transmitting window is provided with wheat seat, the wheat seat and this body by integral forming, solid in the wheat seat
Surely be embedded with noise reduction wheat, the sound collection of noise reduction wheat facing to the loudspeaker geometrical central axis, and in the geometry of noise reduction wheat
Mandrel and the geometrical central axis of loudspeaker are mutually perpendicular to.
Preferably, the loudspeaker includes permanent magnet, coil and vibrating membrane, and the geometrical central axis of the loudspeaker is permanent magnetism
Several centers of body and the geometric center of vibrating membrane connect the axis to be formed.
Preferably, the geometrical central axis of the noise reduction wheat is vertical with sound collection face, and the geometrical central axis warp of noise reduction wheat
Cross the geometric center point in sound collection face.
Preferably, the longitudinal cross-section of the loudspeaker is circle.
Preferably, the sound collection face of the noise reduction wheat is circle.
The beneficial effects of the present invention are：The invention provides a kind of earphone with decrease of noise functions, by contrast test
It can draw, after the improved structure using the present invention, the noise sound wave signal of surrounding environment collected by noise reduction wheat becomes apparent from,
After calculation process by conventional audio digital circuit, the sound of its opposite polarity drawn according to above-mentioned noise data computing
Ripple signal is more accurate, greatly improves the noise reduction of noise cancelling headphone, and practicality is stronger.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram for the earphone that the present invention has decrease of noise functions.
Fig. 2 is dimensional structure diagram when loudspeaker unit of the present invention hides ear muff.
Fig. 3 is the stereochemical structure decomposing schematic representation of loudspeaker unit of the present invention.
Embodiment
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
As shown in Figure 1 to Figure 3, a kind of earphone with decrease of noise functions, including loudspeaker unit 1, elastic head beam 2 and bullet
Property the pars contractilis 3 being flexibly connected of the head beam 2 and loudspeaker support 4 being flexibly connected with loudspeaker unit 1, the loudspeaker unit 1
Including body 11, the loudspeaker 12 being fixed on the outside of body 11 and the enclosing cover 13 being fastened with body 11, the middle part of body 11 is set
Sound transmitting window 14 is equipped with, the side of the sound transmitting window 14 is provided with wheat seat 15, and the wheat seat 15 is integrally formed with body 11, the wheat seat 15
Inside it is fixedly embedded at noise reduction wheat 5, the sound collection of noise reduction wheat 5 is facing to the geometrical central axis of the loudspeaker 12, and noise reduction wheat 5
Geometrical central axis and the geometrical central axis of loudspeaker 12 be mutually perpendicular to.
It can be drawn by contrast test, after the improved structure using the present invention, surrounding environment collected by noise reduction wheat 5
Noise sound wave signal become apparent from, after the calculation process by conventional audio digital circuit, it is transported according to above-mentioned noise data
The acoustic signals of the opposite polarity drawn are more accurate, greatly improve the noise reduction of noise cancelling headphone, and practicality is stronger.
In the present embodiment, the loudspeaker 12 includes permanent magnet, coil and vibrating membrane, the geometric center of the loudspeaker 12
Axle connects the axis to be formed for several centers of permanent magnet and the geometric center of vibrating membrane.Specifically, the geometry of the noise reduction wheat 5
Central shaft is vertical with sound collection face, and the geometrical central axis of noise reduction wheat 5 passes through the geometric center point in sound collection face.Due to wheat
The position and structure of seat 15 in 11 injection molding of body, fixed by its structure, during the combination dress of earphone, Jin Jinxu
Noise reduction wheat 5 is embedded in the wheat seat 15, it is higher without extra progress adjustment and positioning, assembling procedure simple and fast, accuracy.
In the present embodiment, the longitudinal cross-section of the loudspeaker 12 is circle, specifically, the sound collection of the noise reduction wheat 5
Face is circle, and the geometrical central axis of loudspeaker 12 and the geometrical central axis of noise reduction wheat 5 are easier to confirm, in the tool design of earphone
During, the mold design difficulty of body 11 is greatly reduced, reduces the research and development of products cost of earphone, cost performance is higher.
In the description of the invention, it is necessary to which explanation, for the noun of locality, " " center ", " laterally (X) ", " is indulged if any term
To (Y) ", " vertical (Z) " " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " water
It is flat ", " top ", " bottom ", " interior ", " outer ", " clockwise ", the indicating position such as " counterclockwise " and position relationship is based on shown in the drawings
Orientation or position relationship, be for only for ease of the narration present invention and simplify description, rather than instruction or imply signified device or
Element must have specific orientation, be constructed and operated with particular orientation, it is impossible to be interpreted as the specific protection model of the limitation present invention
Enclose.
In addition, be only used for describing purpose if any term " first ", " second ", and it is not intended that indicating or implying relatively heavy
The property wanted or the implicit quantity for indicating technical characteristic.Thus, " first " is defined, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " several " are meant that two or more, unless otherwise clearly having
The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term
Broad sense is gone to understand, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can also be that machinery connects
Connect；Can be joined directly together or be connected by intermediary, can be that two element internals are connected.For ability
For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Embodiment described above only expresses some embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of earphone with decrease of noise functions, including loudspeaker unit（1）, elastic head beam（2）And elastic head beam（2）Activity
The pars contractilis of connection（3）And and loudspeaker unit（1）The loudspeaker support of flexible connection（4）, the loudspeaker unit（1）Including
Body（11）, be fixed on body（11）The loudspeaker in outside（12）And and body（11）The enclosing cover being fastened（13）, body
（11）Middle part is provided with sound transmitting window（14）, it is characterised in that：The sound transmitting window（14）Side be provided with wheat seat（15）, the wheat seat
（15）With body（11）It is integrally formed, the wheat seat（15）Inside it is fixedly embedded at noise reduction wheat（5）, noise reduction wheat（5）Sound collection face
Towards the loudspeaker（12）Geometrical central axis, and noise reduction wheat（5）Geometrical central axis and loudspeaker（12）Geometric center
Axle is mutually perpendicular to.
2. the earphone according to claim 1 with decrease of noise functions, it is characterised in that：The loudspeaker（12）Including permanent magnetism
Body, coil and vibrating membrane, the loudspeaker（12）Geometrical central axis for permanent magnet several centers and vibrating membrane geometry in
The heart connects the axis to be formed.
3. the earphone according to claim 1 with decrease of noise functions, it is characterised in that：The noise reduction wheat（5）Geometry in
Mandrel is vertical with sound collection face, and noise reduction wheat（5）Geometrical central axis pass through sound collection face geometric center point.
4. the earphone with decrease of noise functions according to Claims 2 or 3, it is characterised in that：The loudspeaker（12）It is vertical
It is circle to section.
5. the earphone according to claim 1 with decrease of noise functions, it is characterised in that：The noise reduction wheat（5）Sound adopt
Collection face is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855799.6A CN107454497A (en) | 2017-09-20 | 2017-09-20 | A kind of earphone with decrease of noise functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855799.6A CN107454497A (en) | 2017-09-20 | 2017-09-20 | A kind of earphone with decrease of noise functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107454497A true CN107454497A (en) | 2017-12-08 |
Family
ID=60497163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710855799.6A Pending CN107454497A (en) | 2017-09-20 | 2017-09-20 | A kind of earphone with decrease of noise functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107454497A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203327226U (en) * | 2013-06-26 | 2013-12-04 | 东莞市情声电子有限公司 | Novel headphone |
| CN205491050U (en) * | 2016-03-30 | 2016-08-17 | 东莞市卡能电子有限公司 | Novel earphone |
| CN206181324U (en) * | 2016-10-31 | 2017-05-17 | 深圳市冠旭电子股份有限公司 | Head -wearing noise reduction earphone |
-
2017
- 2017-09-20 CN CN201710855799.6A patent/CN107454497A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203327226U (en) * | 2013-06-26 | 2013-12-04 | 东莞市情声电子有限公司 | Novel headphone |
| CN205491050U (en) * | 2016-03-30 | 2016-08-17 | 东莞市卡能电子有限公司 | Novel earphone |
| CN206181324U (en) * | 2016-10-31 | 2017-05-17 | 深圳市冠旭电子股份有限公司 | Head -wearing noise reduction earphone |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |