CN108600927A - A kind of Microspeaker with acoustics shock-absorbing function - Google Patents
A kind of Microspeaker with acoustics shock-absorbing function Download PDFInfo
- Publication number
- CN108600927A CN108600927A CN201810854264.1A CN201810854264A CN108600927A CN 108600927 A CN108600927 A CN 108600927A CN 201810854264 A CN201810854264 A CN 201810854264A CN 108600927 A CN108600927 A CN 108600927A
- Authority
- CN
- China
- Prior art keywords
- film
- shock
- microspeaker
- sound
- absorbing function
- 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
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The invention discloses a kind of Microspeakers with acoustics shock-absorbing function, include the holder and protecting cover mutually fastened, and the holder fastens to form an accommodating cavity with protecting cover, and magnet, washer, sound film are disposed in the accommodating cavity；The internal stent is equipped with U glasss and adjustable sound paper, and a sound regulating hole is provided in the middle part of U bottom of a cup portion；The outer cover of the protecting cover is equipped with a shock ring；The magnet is in annular shape, and setting is in internal stent, and the upper surface of the magnet is additionally provided with a washer, and the magnet is inserted in the circular arc opening of sound film.The present invention is intended to provide a kind of shock-damping structure of Microspeaker, shakes between effectively reducing inside Microspeaker and transmits, and then ensure user's comfortable wearing, audio is uniform, reduces distortion, restores the true Sound reproducing sense of reality.
Description
Technical field
The present invention relates to electroacoustic techniques field, specifically a kind of Microspeaker with acoustics shock-absorbing function.
Background technology
With MP3, the extensive use of the prevalence of video player and Novel smart mobile phone, people listen to music and see and regard
Frequency all increasingly be unable to do without earphone.Meanwhile earphone is produced as the indispensable attachment of MP3, video player, mobile phone, tablet computer etc.
Product have also obtained rapid development, and it is different to develop the patterns such as In-Ear, ear-sticking, cover ear formula from the Passive earphone of original dullness
And it is provided simultaneously with the decorative and functional earphone in one.
However, existing earphone focuses on appearance design and manufacturing cost, and the wear comfort of earphone is had ignored, earphone chases after
What is asked is the perfect playback of audio, and people listen to music and see video, " can will not give up " for the moment certainly, for a long time by sound
The vibrations that vocal cores comes out can have injury to ear, because the ear of people is very sensitive, by earphone cavity with music frequency
The height of rate and vibrate, user's has a true resonance vibration in one's ear, and vibration for a long time can cause ear itch numb；Especially
For rhythm is powerful and the apparent audio pronunciation of bass effect, the normal good hearing of user can be influenced because of vibrations.
Furthermore with the vibration of earphone cavity, earphone will produce leakage sound, and the sense of hearing around audio cannot be provided for wearer
Grand banquet.
It is accordingly required in particular to which a kind of Microspeaker with acoustics shock-absorbing function, existing in the prior art to solve
Problem.
Invention content
In view of this, the present invention provides a kind of Microspeaker with acoustics shock-absorbing function, it is desirable to provide a kind of miniature
The shock-damping structure of loud speaker shakes between effectively reducing inside Microspeaker and transmits, and then ensures user's comfortable wearing,
Audio is uniform, reduces distortion, restores the true Sound reproducing sense of reality.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：It is of the invention a kind of with acoustics damping work(
The Microspeaker of energy includes the holder and protecting cover mutually fastened, and the holder fastens to form an accommodating cavity with protecting cover, described
Magnet, washer, sound film are disposed in accommodating cavity；The internal stent is equipped with U glasss and adjustable sound paper, U bottom of a cup portion middle part
It is provided with a sound regulating hole；The outer cover of the protecting cover is equipped with a shock ring；The magnet is arranged in annular shape in internal stent, institute
The upper surface for stating magnet is additionally provided with a washer, and the magnet is inserted in the circular arc opening of sound film.
In order to further realize the present invention, the shock ring is made of ABS material.
In order to further realize the present invention, the shock ring includes puigging and buffer layer, and the puigging includes
Through-hole, locating slot and the bolster extended radially through, the locating slot are horizontally set at the inner top surface of shock ring, in each locating slot
Radially direction is evenly distributed with several bolsters, and bolster is shrapnel or spring.
In order to further realize the present invention, the one side that the buffer layer is bonded with puigging is equipped with several shock absorption strips, described
Shock absorption strip is corresponded with the locating slot on puigging, and the shape of the shock absorption strip and locating slot is mutually fitted.
In order to further realize the present invention, the another side of the buffer layer is uniformly densely covered with protrusion, and raised high about 5mm is convex
It can be cone to rise.
In order to further realize the present invention, the first groove and the second groove being mutually communicated are offered on the holder, the
The size of two grooves is more than the size of the first groove, to form a step surface in the junction of the first groove and the second groove,
U glasss are placed in first groove, adjustable sound paper is placed on the step surface, the adjustable sound paper is set around described U glasss
It sets, and described U glasss protrudes from adjustable sound paper, the adjustable sound paper can be non-woven fabrics or tuning cotton.
In order to further realize the present invention, the sound film include hollow inner ring film, outer shroud film and positioned at inner ring film with
Between outer shroud film and section is in the middle ring film of arc-shaped, and the outer shroud film is fixed on the end face of holder, coiling on inner ring film
There are a circle voice coil, the circular arc of the middle ring film to be open towards magnet；The middle ring film is equipped on the surface faced with magnet
It is in a strip shape and from inner ring film to outer shroud film divergence expression and equally distributed multiple reinforcing ribs.
In order to further realize the present invention, the sound film is using any novel height among PET, PEEK, PAR and PEI etc.
Molecular material forms single layer diaphragm, and plating titanium layer is added to meet.
In order to further realize the present invention, damping screen and pcb board are additionally provided in the accommodating cavity, the damping screen is set to
The connected component of front and back chamber, the pcb board are set on the step surface of holder.
In order to further realize the present invention, the aperture of the sound regulating hole is 1.2mm.
Advantageous effect
1. the present invention is equipped with a shock ring using the outer cover in protecting cover, buffer layer that shock ring is internally provided with and protecting cover it
Between point contact, reduce the contact area between protecting cover and buffer layer so that when high spot is by external pressure, same pressure is made
The pressure bigger caused by, protrusion are more easily deformed, and absorb the energy that exterior vibration generates in time, and damping effect is more preferable,
The resonance for effectively reducing accommodating cavity, reduces the injury to human ear.
2. the present invention, to change loud speaker front cavity air volume, is raised one's voice using U glasss of middle part tunings to play adjustment
The effect of the unit area equivalent mass of device monomer, and then the power sound for changing earphone cavity back cavity converts function, is adjusted to play
The effect of whole earphone back cavity cavity equivalent volume and power meets demand of the user in different audition situations to audio.
3. the sound film of the present invention is equipped in a strip shape and from inner ring film to outer shroud film divergence expression and equally distributed multiple reinforcements
Muscle can either increase the rigidity of sound film, and can improve audio, to improve the quality of the product for exporting audio.
4. the present invention forms unit magnetic circuit system using interior magnetic horn, the magnet is inserted in the circular arc opening of sound film
Portion generates electromagnetic induction by audio electrical signal and the magnet of coil input variation, to generate that an amplitude differs along axis
To driving force, push sound film to do reciprocal linear movement, the sound regulating hole for coordinating U glass middle parts to be equipped with, it is ensured that magnetic line of force distribution
Symmetrically, distortion is reduced, the true Sound reproducing sense of reality is restored.
Description of the drawings
Attached drawing 1 is a kind of overall structure diagram of the Microspeaker with acoustics shock-absorbing function of the present invention；
Attached drawing 2 is magnetic horn structural schematic diagram in a kind of Microspeaker with acoustics shock-absorbing function of the present invention；
Attached drawing 3 is a kind of structural schematic diagram of the Microspeaker shock ring with acoustics shock-absorbing function of the present invention.
Reference sign：
1, holder；11, the first groove；12, the second groove；13, step surface；14, sound regulating hole；2, protecting cover；3, magnet；4, magnificent
Department；5, sound film；51, inner ring film；52, outer shroud film；53, middle ring film；54, reinforcing rib；6、PCB；7, shock ring；71, puigging；
711, through-hole；712, locating slot；713, bolster；72, buffer layer；721, shock absorption strip；722, raised.
Specific implementation mode
Below in conjunction with drawings and examples, the present invention is further described：
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
As shown in Figure 1, a kind of Microspeaker with acoustics shock-absorbing function of the present invention, includes the branch mutually fastened
Frame 1 and protecting cover 2, the holder and protecting cover fasten to form an accommodating cavity, be disposed in the accommodating cavity magnet 3, washer 4,
Sound film 5, internal cavity of the U-shaped shape holder as earphone also act tune other than it can fix and protect loud speaker
Sound function offers the first groove 11 and the second groove 12 being mutually communicated on the loudspeaker support 1, the second groove 12
Size is more than the size of the first groove 11, to form a step surface 13 in the junction of the first groove 11 and the second groove 12,
It is equipped with U glasss in first groove 11, is provided with a sound regulating hole 14 in the middle part of U bottom of a cup portion, the aperture of the sound regulating hole is
1.2mm is placed with a pcb board 6 and adjustable sound paper on the step surface 13, and adjustable sound paper is around U glasss of settings, the U glasss of protrusion
In adjustable sound paper, wherein the adjustable sound paper can be non-woven fabrics or tuning cotton.
Further, the sound film 5 include hollow inner ring film 51, outer shroud film 52 and positioned at inner ring film and outer shroud film it
Between and section be in arc-shaped middle ring film 53, outer shroud film 52 is fixed on the end face of horn bracket, is wound on inner ring film 51
One circle voice coil, wherein the circular arc of middle ring film is open towards magnet, in this way, voice coil can pull middle ring film flexible deformation, and then makes
Middle ring film generates vibration, and by the middle ring film and hollow inner ring film in arc-shaped, it can be achieved that deformation vibration, by audio
Electric signal is spread out of.The middle ring film is equipped in a strip shape and from inner ring film to outer shroud film divergence expression on the surface faced with magnet
And equally distributed multiple reinforcing ribs 54, reinforcing rib can either increase the rigidity of sound film, and can improve audio, be used for improve
The quality of the product of audio is exported, voice coil is bonded on the surface of middle ring film by high temperature resistant and the strong glue of adhesive property, is led to
The audio electrical signal for crossing coil input variation generates electromagnetic induction with magnet, to generate the drive in an axial direction that an amplitude differs
Power pushes sound film to do reciprocal linear movement, to which audio electrical signal is converted to voice signal；Wherein, sound film is to use
Any novel high polymer material forms single layer diaphragm among PET, PEEK, PAR and PEI etc., and plating titanium layer is added to meet, to
Increase the rigid extension high frequency of sound film.
Further, the magnet is additionally provided with a China in annular shape, setting in internal stent, the upper surface of the magnet
Department, and the magnet is inserted in the circular arc opening of sound film.
Further, the protecting cover 2 plays protection vibrating diaphragm, and vibrating diaphragm is made not influenced by external force and cause to deform, such as Fig. 3 institutes
Show, be equipped with a shock ring 7 in the outer cover of the protecting cover 2, the shock ring 7 includes puigging 71 and buffer layer 72, wherein
Puigging can prevent sound from penetrating, and to play good soundproof effect, make the sound sent out inside accommodating cavity from puigging
Through-hole 711 is transferred to human ear, and then generates around audio, furthermore, the top surface of shock ring is horizontally arranged with several locating slots 712,
It is evenly distributed with several bolsters 713 along its length in each locating slot 712, bolster 713 can be shrapnel or spring.
Same reason, buffer layer 72 are made of ABS material, have certain intensity and elasticity, are made playing support
With while can deform under external force.The one side being bonded with puigging 71 on buffer layer 72 is equipped with several shock absorption strips 721,
Shock absorption strip 721 is corresponded with the locating slot 712 on puigging 71, and shock absorption strip 721 and the shape of locating slot 712 are adapted, with
Just shock absorption strip 721 can fix in locating slot 712, and buffer layer is facilitated to be quickly mounted on sound panel.
The another side of buffer layer 72 is uniformly densely covered with protrusion 722,722 high about 5mm of protrusion, and protrusion 722 can be cone,
Point contact between protrusion 722 and protecting cover reduces the contact area between protecting cover and buffer layer 72 so that by outer at protrusion 722
When portion's pressure, pressure bigger caused by same pressure acts on, protrusion 722 is more easily deformed, and absorbs exterior vibration in time
The energy of generation, damping effect are more preferable.
Further, density variation occurs for the damping screen adjustment hardware bracket inner air, adjusts frequency response curve tendency,
The damping screen is set to the connected component of front and back chamber.
Further, the pcb board 6 plays a part of that electric current between voice coil and source of sound, same reason, the PCB is connected
Plate is set on First terrace, and the pcb board is adhered on the pedestal of injection molding respectively with U glasss, and making obtains loud speaker branch
Frame.
The novel specific implementation of this implementation is described as follows：
When the voice coil of speech coil framework has alternating current to flow through, will produce electromagnetic field, generated with the magnets of loudspeaker repel from
And the diaphragm of speech coil framework is driven to shake disk movement, it, can be by an electricity when current－carrying conductor passes through magnetic field according to Faraday's law
Power, direction, which meets, not carrys out bright left hand rule, and power and electric current, magnetic direction are orthogonal, and stress size and electric current, conducting wire are long
Degree, magnetic flux density it is directly proportional, wherein magnet provides magnetic field for current－carrying conductor, when voice coil input alternation tone currents, voice coil by
Alternate motion is generated to alternation motive force, drives cone vibration, pushes air repeatedly and sounding, meanwhile, it is strong for rhythm
The audio pronunciation of strength, the earphone cavity that shock ring can vibrate the height with music frequency carry out damping, reduce to using
The resonance vibration in one's ear of person, also, maintain the true transmission of audio.
The foregoing is merely the better embodiments of the present invention, and the invention is not limited in the above embodiments, are implementing
There may be the small structural modifications in part in the process, if the various changes or modifications of the present invention are not departed from the essence of the present invention
God and range, and belong within the scope of the claim and equivalent technologies of the present invention, then the present invention is also intended to comprising these changes
And modification.
Claims (10)
1. a kind of Microspeaker with acoustics shock-absorbing function, it is characterised in that：Include the holder and protecting cover mutually fastened,
The holder fastens to form an accommodating cavity with protecting cover, and magnet, washer, sound film are disposed in the accommodating cavity；The holder
It is internally provided with U glasss and adjustable sound paper, a sound regulating hole is provided in the middle part of U bottom of a cup portion；The outer cover of the protecting cover is equipped with a shock ring；
The magnet is arranged in internal stent, the upper surface of the magnet is additionally provided with a washer, and the magnet is inserted in annular shape
In the circular arc opening of sound film.
2. a kind of Microspeaker with acoustics shock-absorbing function according to claim 1, which is characterized in that the damping
Ring is made of ABS material.
3. a kind of Microspeaker with acoustics shock-absorbing function according to claim 1, which is characterized in that the damping
Ring includes puigging and buffer layer, and the puigging includes the through-hole, locating slot and bolster extended radially through, the positioning
Slot is horizontally set at the inner top surface of shock ring, and radially direction is evenly distributed with several bolsters in each locating slot, buffers
Part is shrapnel or spring.
4. a kind of Microspeaker with acoustics shock-absorbing function according to claim 3, which is characterized in that the damping
The one side that layer is bonded with puigging is equipped with several shock absorption strips, and the shock absorption strip is corresponded with the locating slot on puigging, described
The shape of shock absorption strip and locating slot is mutually fitted.
5. a kind of Microspeaker with acoustics shock-absorbing function according to claim 4, which is characterized in that the damping
The another side of layer is uniformly densely covered with protrusion, and the high about 5mm of protrusion, protrusion can be cone.
6. a kind of Microspeaker with acoustics shock-absorbing function according to claim 1, which is characterized in that the holder
On offer the first groove and the second groove being mutually communicated, the size of the second groove is more than the size of the first groove, to
The junction of first groove and the second groove forms a step surface, U glasss is placed in first groove, in the step surface
On be placed with adjustable sound paper, the adjustable sound paper is arranged around described U glass, and described U glasss protrudes from adjustable sound paper, and the adjustable sound paper can be
Non-woven fabrics or tuning cotton.
7. a kind of Microspeaker with acoustics shock-absorbing function according to claim 1, which is characterized in that the sound film
Including hollow inner ring film, outer shroud film and between inner ring film and outer shroud film and section be in arc-shaped middle ring film, it is described
Outer shroud film is fixed on the end face of holder, and a circle voice coil is wound on inner ring film, and the circular arc of the middle ring film is open towards magnetic
Iron；The middle ring film is equipped in a strip shape on the surface faced with magnet and is divided from inner ring film to outer shroud film divergence expression and uniformly
Multiple reinforcing ribs of cloth.
8. a kind of Microspeaker with acoustics shock-absorbing function according to claim 7, which is characterized in that the sound film
Be single layer diaphragm is formed using any novel high polymer material among PET, PEEK, PAR and PEI etc., and add plating titanium layer to meet and
At.
9. a kind of Microspeaker with acoustics shock-absorbing function according to claim 1, which is characterized in that described accommodating
Intracavitary is additionally provided with damping screen and pcb board, and the damping screen is set to the connected component of front and back chamber, and the pcb board is set to holder
Step surface on.
10. a kind of Microspeaker with acoustics shock-absorbing function according to claim 1, which is characterized in that the tune
The aperture of sound hole is 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810854264.1A CN108600927A (en) | 2018-07-30 | 2018-07-30 | A kind of Microspeaker with acoustics shock-absorbing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810854264.1A CN108600927A (en) | 2018-07-30 | 2018-07-30 | A kind of Microspeaker with acoustics shock-absorbing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108600927A true CN108600927A (en) | 2018-09-28 |
Family
ID=63618474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810854264.1A Pending CN108600927A (en) | 2018-07-30 | 2018-07-30 | A kind of Microspeaker with acoustics shock-absorbing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108600927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021013310A1 (en) * | 2019-07-25 | 2021-01-28 | Buss Karsten | Loudspeaker for headphones |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010088726A (en) * | 2001-08-27 | 2001-09-28 | 이형우 | Ear-Phone Speaker |
| CN2738506Y (en) * | 2004-10-21 | 2005-11-02 | 程光 | Loudspeaker vibrating diaphragm |
| WO2006088279A1 (en) * | 2005-02-21 | 2006-08-24 | Bse Co., Ltd. | Double diaphragm micro speaker |
| CN201718034U (en) * | 2009-12-11 | 2011-01-19 | 周成华 | Earplug-type vibrator horn |
| JP3197746U (en) * | 2015-03-13 | 2015-06-04 | 家伶 葉 | Canal type earphone |
| CN206181357U (en) * | 2016-10-31 | 2017-05-17 | 深圳市冠旭电子股份有限公司 | Speaker and earphone |
| CN206948563U (en) * | 2017-06-27 | 2018-01-30 | 广州斐诺电子科技有限公司 | A kind of spiral in-ear typed Bluetooth headset |
| CN207235105U (en) * | 2017-08-18 | 2018-04-13 | 江西联创宏声万安电子有限公司 | A kind of Novel earphone speaker |
| CN208609179U (en) * | 2018-07-30 | 2019-03-15 | 广州斐诺电子科技有限公司 | A kind of Microspeaker with acoustics shock-absorbing function |
-
2018
- 2018-07-30 CN CN201810854264.1A patent/CN108600927A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010088726A (en) * | 2001-08-27 | 2001-09-28 | 이형우 | Ear-Phone Speaker |
| CN2738506Y (en) * | 2004-10-21 | 2005-11-02 | 程光 | Loudspeaker vibrating diaphragm |
| WO2006088279A1 (en) * | 2005-02-21 | 2006-08-24 | Bse Co., Ltd. | Double diaphragm micro speaker |
| CN201718034U (en) * | 2009-12-11 | 2011-01-19 | 周成华 | Earplug-type vibrator horn |
| JP3197746U (en) * | 2015-03-13 | 2015-06-04 | 家伶 葉 | Canal type earphone |
| CN206181357U (en) * | 2016-10-31 | 2017-05-17 | 深圳市冠旭电子股份有限公司 | Speaker and earphone |
| CN206948563U (en) * | 2017-06-27 | 2018-01-30 | 广州斐诺电子科技有限公司 | A kind of spiral in-ear typed Bluetooth headset |
| CN207235105U (en) * | 2017-08-18 | 2018-04-13 | 江西联创宏声万安电子有限公司 | A kind of Novel earphone speaker |
| CN208609179U (en) * | 2018-07-30 | 2019-03-15 | 广州斐诺电子科技有限公司 | A kind of Microspeaker with acoustics shock-absorbing function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021013310A1 (en) * | 2019-07-25 | 2021-01-28 | Buss Karsten | Loudspeaker for headphones |
| US11895476B2 (en) | 2019-07-25 | 2024-02-06 | Karsten Buss | Loudspeaker for headphones |
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Effective date of registration: 20190308 Address after: 510000 Room 401, Fourth Floor, Ganhu Industrial Village, Xintang Town Industrial Processing Zone, Zengcheng District, Guangzhou City, Guangdong Province Applicant after: Guangzhou Crazy Cool Technology Co., Ltd. Address before: 510000 Ganhu Industrial Village, Xintang Town Industrial Processing Zone, Zengcheng District, Guangzhou, Guangdong Province Applicant before: Guangzhou phaeno Electronic Technology Co. Ltd. |
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