CN108495241A - A kind of vibration main body, loud speaker and the electronic equipment of loud speaker - Google Patents
A kind of vibration main body, loud speaker and the electronic equipment of loud speaker Download PDFInfo
- Publication number
- CN108495241A CN108495241A CN201810144305.8A CN201810144305A CN108495241A CN 108495241 A CN108495241 A CN 108495241A CN 201810144305 A CN201810144305 A CN 201810144305A CN 108495241 A CN108495241 A CN 108495241A
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- China
- Prior art keywords
- magnetic part
- side magnetic
- main body
- length
- central
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Classifications
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- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
Abstract
The present invention discloses a kind of vibration main body of loud speaker, it includes central magnetic part, at least four side magnetic parts, voice coil and vibrating diaphragm, discrete four sides for being centrally located magnetic part of at least four side magnetic parts, air hole is formed between two adjacent side magnetic parts, vibrating diaphragm is erected on central magnetic part and at least four side magnetic parts, central magnetic part, at least four side magnetic parts and vibrating diaphragm constitute vibration cavity, one end of voice coil is connected on vibrating diaphragm, the other end of voice coil stretches between central magnetic part and side magnetic part, it is less than the length of the side magnetic part positioned at the other side of central magnetic part positioned at the length of the side magnetic part of central magnetic part side.Invention additionally discloses a kind of loud speaker and electronic equipments.Said program can solve the problems, such as that current loud speaker polarization phenomena is more serious.
Description
Technical field
The present embodiments relate to electronic device design technical field more particularly to a kind of vibration main body of loud speaker, raise
Sound device and electronic equipment.
Background technology
With advances in technology and the diversification of people's demand, more and more electronic equipments enter in people’s lives.
In order to realize basic human-computer interaction function, electronic equipment more at present includes loud speaker, and loud speaker can realize that electronics is set
Standby sounding.
Loud speaker generally includes babinet and the vibration main body in babinet, and the vibration for vibrating main body can be in adjusting tank body
Air-flow, and then generate the sound that can be pierced by from the sound outlet hole on babinet.Referring to FIG. 1, Fig. 1 is a kind of raising for typical mobile phone
The structural schematic diagram of sound device.In order to ensure the aesthetics of mobile phone complete machine, the sound outlet hole 11 of the loud speaker of mobile phone is located at mobile phone bottom
Left or right side (be USB socket among the bottom of usual mobile phone, the side of USB socket is earphone socket, and the other side is sound
Hole), in order to realize that above-mentioned setting, the vibration main body 2 of loud speaker can be placed on one end of babinet 1.
Vibration main body 2 is provided with multiple air holes, and (such as that vibration four of main body four corners is located in Fig. 1 is ventilative
Hole) 21, during vibration, the vibration of vibration main body 2 can disturb the flowing of the air in babinet 1 by air hole 21, into
And achieve the purpose that speak.As shown in Figure 1, vibration main body 2 is located at one end that babinet 1 is provided with sound outlet hole 11,2 court of vibration main body
There is larger space to the other end of babinet 1 and towards the side of sound outlet hole 11, and vibrate the spaces of other sides of main body 2 compared with
It is small, it is unfavorable for the air flowing of air hole 21.It is known that the generation of sound depends on the flowing of air.It is leaned in vibration main body 2
The air-flow of the air hole 21 of the smaller side of near space can be by larger obstruction, and then vibration main body 2 is caused to be located at the position
The amplitude of vibration is smaller, and vibrates the air-flow of air hole 21 in main body 2 by the larger side of near space by smaller obstruction,
And then the amplitude for vibrating the vibration that main body 2 is located at the position can be caused larger.In such cases, vibration main body 2 can polarize
Phenomenon eventually results in loud speaker and the problems such as noise, distortion occurs, seriously affects the voice quality of loud speaker.
Above-mentioned loud speaker there are the problem of be not limited to mobile phone, the electronic equipment of other loud speakers with similar structure
There is the above problem in (such as tablet computer).
Invention content
The embodiment of the present invention discloses a kind of vibration main body of loud speaker, with solve current loud speaker polarization phenomena compared with
For serious problem.
To solve the above-mentioned problems, the embodiment of the present invention uses following technical proposals：
In a first aspect, the embodiment of the present invention provides a kind of vibration main body of loud speaker, including central magnetic part, at least four
Side magnetic part, voice coil and vibrating diaphragm, the discrete surrounding for being distributed in the central magnetic part of at least four side magnetic parts, phase
Air hole is formed between two adjacent side magnetic parts, the vibrating diaphragm is erected at the central magnetic part and at least four
On the side magnetic part, the central magnetic part, at least four side magnetic parts and the vibrating diaphragm constitute vibration cavity, institute
The one end for stating voice coil is connected on the vibrating diaphragm, and the other end of the voice coil is stretched into the central magnetic part and the side
Between magnetic part, the length for being located at the side magnetic part of central magnetic part side is less than positioned at the central magnetic part
The length of the side magnetic part of the other side.
Second aspect, the embodiment of the present invention provides a kind of loud speaker, including babinet and vibration main body described above, described
Babinet is provided with sound outlet hole, and at least four side magnetic parts include the first side magnetic part and the second side magnetic part, and described first
Side magnetic part and the second side magnetic part are arranged the both sides opposite in the central magnetic part, and first side magnetic part and
The second side magnetic part is set gradually in the perforation direction of the sound outlet hole, magnetic close to first side of the sound outlet hole
The length of part is less than the length of the second side magnetic part far from the sound outlet hole.
The third aspect, the embodiment of the present invention provide a kind of electronic equipment comprising loud speaker described above.
In electronic equipment disclosed by the invention, the length close to the side magnetic part of sound outlet hole is smaller, therefore voice coil and vibration
Diaphragm is smaller in the Ampere force that the region is subject to, correspondingly, the length of the side magnetic part far from sound outlet hole is larger, voice coil and vibration
The Ampere force that corresponding position is subject on diaphragm is larger, is balanced in the size of central magnetic part both sides stress by adjusting voice coil
Air suffered by its both sides hinders, being capable of balanced voice coil and vibrating diaphragm vibration.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of typical loud speaker；
Fig. 2 is a kind of diagrammatic cross-section of vibration main body disclosed by the embodiments of the present invention；
Fig. 3 is the vertical view of vibration main part component disclosed by the embodiments of the present invention；
Fig. 4 is a kind of structural schematic diagram of loud speaker disclosed by the embodiments of the present invention；
Fig. 5 is the schematic cross-sectional view of loud speaker disclosed by the embodiments of the present invention.
Reference sign：
1- babinets, 11- sound outlet holes, 2- vibrations main body, 21- air holes；
100- vibrate main body, 110- central magnetics part, the sides 121- magnetic part, the sides 122- magnetic part, the sides 123- magnetic part,
The sides 124- magnetic part, 130- voice coils, 140- vibrating diaphragms, 150- air holes, 160- vibration cavities, 170- pedestals, 180- supporting racks,
190- elastic pieces, 1100- magnetic conduction sheets, 200- babinets, 210- sound outlet holes.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
The technical solution provided below in conjunction with attached drawing, each embodiment that the present invention will be described in detail.
- 5 are please referred to Fig.2, the embodiment of the present invention discloses a kind of vibration main body 100 of loud speaker, disclosed vibration main body
100 include central magnetic part 110, at least four side magnetic parts (such as side magnetic part 121, side magnetic part 122, side magnetic part
123, side magnetic part 124), voice coil 130 and vibrating diaphragm 140.
At least four side magnetic parts are discrete to be centrally located around magnetic part 110, and two adjacent side magnetic parts it
Between formed air hole 150, and then supply stream pass through.The discrete distribution refers between two side magnetic parts of arbitrary neighborhood
Gap is formed, which is used to form air hole 150.Vibrating diaphragm 140 is erected at central magnetic part 110 and at least four side magnetic
Property part on, central magnetic part 110, at least four side magnetic parts and vibrating diaphragm 140 constitute vibration cavity 160.
One end of voice coil 130 is connected on vibrating diaphragm 140, and the other end of voice coil 130 is free end, voice coil 130 it is another
One end is stretched between central magnetic part 110 and at least four side magnetic parts.Central magnetic part 110 is opposite with each side magnetic part
End magnetic field it is different so that forming magnetic field, voice coil between central magnetic part 110 and at least four side magnetic parts
130 be coil, and according to left hand rule, the voice coil 130 after energization can move in magnetic field, and then drives vibrating diaphragm 140 1
Play movement.The vibration meeting certain driving air-flow of vibrating diaphragm 140 passes through air hole 150 and passes in and out vibration cavity 160.
In at least four side magnetic parts, the length for being located at the side magnetic part of 110 side of central magnetic part is less than positioned at center
The length of the side magnetic part of 110 other side of magnetic part, the side are opposite both sides with the other side.For example, side magnetic part
122 length A is less than the length B of side magnetic part 121, for another example the length C of side magnetic part 124 is less than the length of side magnetic part 123
Spend D.It should be noted that herein, side magnetic part is side along the size of the outer ledge extending direction of central magnetic part 110
The length of magnetic part, size of the side magnetic part on the direction of vibration of vibrating diaphragm 140 are the height of side magnetic part, side magnetic part
Width direction it is perpendicular with its length direction and short transverse.
According to left hand rule, voice coil 130 is coil, can be in magnetic field by Ampere force, and then in central magnetic after energization
Make cutting magnetic induction line movement in the magnetic field that part 110 is formed with side magnetic part, voice coil 130 drives vibrating diaphragm 140 to vibrate, Jin Erfa
Go out sound.During vibration, 130 up-down vibration of voice coil can change the magnetic flux across voice coil 130 in turn, so that its
Suffered Ampere force changes.Based on this thinking, in vibration main body 100 disclosed by the embodiments of the present invention, by adjusting sound
Circle 130 is balanced positioned at the power suffered by 110 both sides of central magnetic part since air hinders polarization problem caused by difference.
In actual assembling process, side magnetic part and central magnetic part can then be adjusted by changing the length of side magnetic part
The length of effective magnetic field between 110 for driving the vibration of voice coil 130, so that 130 driven length of voice coil shortens, from
And the vibration of 130 corresponding site of voice coil is become smaller.According to left hand rule formula it is found that in the case where other factors are constant,
The length of effective magnetic field becomes smaller, then the stress of 130 corresponding site of voice coil becomes smaller.Vibration main body 100 disclosed by the embodiments of the present invention
In, the space residing for the side magnetic part 121 of the sound outlet hole 210 away from loud speaker farther out is more narrow, the air hole 150 in the region
The obstruction that the air-flow of circulation is subject to is larger, and the vibration of voice coil 130 and vibrating diaphragm 140 in the region is smaller, and away from loud speaker
Babinet 200 the closer side magnetic part 122 of sound outlet hole 210 residing for space it is more spacious, the air hole 150 in the region flows
The obstruction that logical air-flow is subject to is smaller, and the vibration of voice coil 130 and vibrating diaphragm 140 in the region is larger, in such cases, due to
Length close to the side magnetic part 122 of sound outlet hole 210 is smaller, therefore the peace that voice coil 130 and vibrating diaphragm 140 are subject in the region
Training power is smaller, correspondingly, the length of the side magnetic part 121 far from sound outlet hole is larger, it is corresponding on voice coil 130 and vibrating diaphragm 140
The Ampere force that is subject to of position it is larger, by adjusting voice coil 130 the size of 110 both sides stress of central magnetic part come balance its two
Air suffered by side hinders, being capable of balanced voice coil 130 and the vibration of vibrating diaphragm 140.
The embodiment of the present invention overcomes the intrinsic thinking of the vibration main body generally use symmetric magnetic field of traditional loud speaker, according to
The stress of voice coil 130 is adjusted by adjusting the size in magnetic field, reaches equal by the thinking of Ampere force in magnetic field according to electrical body
The purpose for the different resistances that weighing apparatus is subject to across the air-flow of air hole 150, can preferably solve polarization problem.It was designed actual
Cheng Zhong, designer can according to require by gradually adjust the length of side magnetic part reach control polarization meet the requirements.
In a kind of specific embodiment, the quantity of side magnetic part is four, respectively side magnetic part 121, side magnetic part
122, side magnetic part 123 and side magnetic part 124.Four side magnetic parts are separately positioned on four sides of central magnetic part 110, four magnetic
Property part is oppositely arranged two-by-two, and is divided into two groups.In two side magnetic parts of every group of Relative distribution, the length of one is respectively less than another
The length of person.In the specific scheme, the polarization problem of balanced voice coil 130 in two directions can be realized.
Vibration main body 100 disclosed by the embodiments of the present invention can also include pedestal 170, at least four side magnetic parts and center
Magnetic part 110 is arranged on pedestal 170.Pedestal 170, central magnetic part 110, at least four side magnetic parts and vibrating diaphragm
240 constitute vibration cavity 160.Pedestal 170 provides installation foundation to vibrate other components of main body 100.
Specifically, the one side at least four side magnetic parts away from pedestal 170 can be provided with supporting rack 180, vibrating membrane
Piece 140 can be connected by elastic component 190 with supporting rack 180, and then realize elasticity overlapped purpose, be conducive to vibrating diaphragm
140 move back and forth under the drive of voice coil 130.Specifically, elastic component 190 can be spring, can also be elastic metallic
Piece, the embodiment of the present invention do not limit the concrete structure of elastic component 190.
In preferred scheme, pedestal 170 can be magnetic conductor bowl, central magnetic part 110 and at least four side magnetic parts
With in the supporting zone of pedestal 170, that is to say, that in the projection in the direction of the supporting surface perpendicular to pedestal 170, center
The projection of magnetic part 110 and at least four side magnetic parts is respectively positioned on pedestal 170 in the projection of the direction.The pedestal of above structure
170 can enhance magnetic field intensity, prevent magnetic field exposure, while can also increase the magnetic flux of voice coil 130, reach high efficiency drive voice coil
130 purpose.
In vibration main body 100 disclosed by the embodiments of the present invention, deviate from central magnetic part 110 and at least four side magnetic parts
The one side of pedestal 170 can be provided with magnetic conduction sheet 1100.Magnetic conduction sheet 1100 can play the role of reinforcing magnetic field, while can
It adjusts magnetic field and passes through voice coil 130 as much as possible, and then improve the magnetic flux across voice coil 130, be finally reached high efficiency drive sound
The purpose of circle 130.
In actual assembling process, voice coil 130 and vibrating diaphragm 140 are by glue sticking, specifically, voice coil 130 can be with
It is Nian Jie with vibrating diaphragm 140 by glue, it can also be Nian Jie with vibrating diaphragm by solid-state glue.
Voice coil 130 may include first part and second part, and first part and second part are located at central magnetic
The both sides of part 110.First part is located at the same side, second part and the larger side magnetic of length with the smaller side magnetic part 1 of length
Property part 1 be located at the same side, the dispensing amount between first part and vibrating diaphragm 140 be more than second part and vibrating diaphragm 140 it
Between dispensing amount.Dispensing amount is different, then first part and the weight of second part are then different, first part and vibrating diaphragm 140
Between dispensing amount it is larger, and then the gravity for the glue that voice coil 130 is subject at this can be made larger, first part can be reduced
Amplitude, corresponding, the dispensing amount between second part and vibrating diaphragm 140 is smaller, so can make voice coil 130 at this by
The gravity of the glue arrived is smaller.Dispensing amount is different, enables to first part and second part Oscillation Amplitude when by Ampere force
It is different.The preferred embodiment achievees the purpose that balance polarization by adjusting dispensing amount, can play preferable booster action.
Based on vibration main body 100 disclosed by the embodiments of the present invention, referring again to Figure 4 and 5, the embodiment of the present invention discloses one
Kind loud speaker, disclosed loud speaker includes babinet 200 and vibration main body 100 described above, and babinet 200 is provided with sound outlet hole
210.At least four side magnetic parts include the first side magnetic part and the second side magnetic part, the first side magnetic part and the second side magnetic part
It is separately positioned on the opposite both sides of central magnetic part 110.The perforation of first side magnetic part and the second side magnetic part in sound outlet hole 210
Direction is set gradually, and the length A close to the first side magnetic part (i.e. side magnetic part 122) of sound outlet hole 210 is less than far from sound outlet hole
The length B of 210 the second side magnetic part (i.e. side magnetic part 121).In such cases, the first side magnetic part and the second side magnetic part
It can preferably alleviate and be polarized existing for the perforation direction of sound outlet hole 210.
Referring again to Fig. 4 and Fig. 5, babinet 200 is usually elongate structure, and sound outlet hole 210 is opened in the one of babinet 200
End, it is big to be sequentially distributed the space that the air hole 150 in 110 both sides of central magnetic part is faced on the length direction of babinet 200
Small difference is based on this correspondingly, the obstruction being subject to by the air-flow of air hole 150 is different, and at least four side magnetic parts include the
Three side magnetic parts (i.e. side magnetic part 124) and the 4th side magnetic part (i.e. side magnetic part 123), third side magnetic part and the 4th side magnetic
Property part is sequentially distributed in the length direction of babinet 200, and third side magnetic part and the 4th side magnetic part are located at central magnetic part
110 opposite both sides.The distance E of the other end of the third side magnetic part away from babinet 200 is the first distance, and the 4th side magnetic part is away from case
The distance F of the other end of body 200 is second distance, and the first distance is less than second distance, and the length of third side magnetic part is less than the
The length of four side magnetic parts.Such setting can adjust the polarization phenomena of vibration main body 100 in the length direction of babinet 200.
Based on loud speaker disclosed by the embodiments of the present invention, the embodiment of the present invention discloses a kind of electronic equipment, disclosed electricity
Sub- equipment includes loud speaker described above.
Electronic equipment disclosed by the embodiments of the present invention can be mobile phone, tablet computer, wrist-watch, wearable device, unmanned plane
Etc. equipment, the embodiment of the present invention do not limit the specific type of electronic equipment.
Emphasis describes the difference between each embodiment in foregoing embodiments of the present invention, different between each embodiment
As long as optimization feature non-contradiction, can combine to form more preferably embodiment, it is contemplated that style of writing is succinct, then no longer superfluous at this
It states.
Example the above is only the implementation of the present invention is not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.It is all within spirit and principles of the present invention made by any modification, equivalent
Replace, improve etc., it should be included within scope of the presently claimed invention.
Claims (12)
1. a kind of vibration main body of loud speaker, which is characterized in that including central magnetic part, at least four side magnetic parts, voice coil and
Vibrating diaphragm, discrete four sides for being distributed in the central magnetic part of at least four side magnetic parts, adjacent two sides
Air hole is formed between magnetic part, the vibrating diaphragm is erected at the central magnetic part and at least four side magnetic parts
On, the central magnetic part, at least four side magnetic parts and the vibrating diaphragm constitute vibration cavity, one end of the voice coil
It being connected on the vibrating diaphragm, the other end of the voice coil stretches between the central magnetic part and the side magnetic part,
It is less than the institute positioned at the other side of the central magnetic part positioned at the length of the side magnetic part of central magnetic part side
State the length of side magnetic part.
2. vibration main body according to claim 1, which is characterized in that the quantity of the side magnetic part is four, and respectively
It is arranged in four sides of the central magnetic part；In two side magnetic parts of every group of Relative distribution, the length of one is respectively less than
The length of another one.
3. vibration main body according to claim 1, which is characterized in that further include pedestal, at least four side magnetic parts
It is respectively provided on the base with the central magnetic part.
4. vibration main body according to claim 3, which is characterized in that deviate from the bottom on at least four side magnetic parts
Seat is provided with supporting rack on one side, and the vibrating diaphragm is connected by elastic component with support frame as described above.
5. vibration main body according to claim 4, which is characterized in that the elastic component is spring.
6. vibration main body according to claim 3, which is characterized in that the pedestal is magnetic conductor bowl, the central magnetic part
It is respectively positioned in the supporting zone of the pedestal at least four side magnetic parts.
7. vibration main body according to claim 6, which is characterized in that further include magnetic conduction sheet, the magnetic conduction sheet is arranged in institute
It states on central magnetic part and at least four side magnetic parts in the one side of the pedestal.
8. vibration main body according to claim 1, which is characterized in that the voice coil passes through gluing with the vibrating diaphragm
It connects, the voice coil includes first part and second part, and the first part is located at the center with the second part
The both sides of magnetic part, the first part are located at the same side, the second part and length with the smaller side magnetic part of length
It spends the larger side magnetic part and is located at the same side, the dispensing amount between the first part and the vibrating diaphragm is more than described
Dispensing amount between second part and the vibrating diaphragm.
9. a kind of loud speaker, which is characterized in that described including babinet and vibration main body described in any item of the claim 1 to 8
Babinet is provided with sound outlet hole, and at least four side magnetic parts include the first side magnetic part and the second side magnetic part, and described first
Side magnetic part and the second side magnetic part are arranged the both sides opposite in the central magnetic part, and first side magnetic part and
The second side magnetic part is set gradually in the perforation direction of the sound outlet hole, magnetic close to first side of the sound outlet hole
The length of part is less than the length of the second side magnetic part far from the sound outlet hole.
10. loud speaker according to claim 9, which is characterized in that the babinet is elongate structure, and the sound outlet hole opens up
In one end of the babinet, at least four side magnetic parts include third side magnetic part and the 4th side magnetic part, the third
Side magnetic part and the 4th side magnetic part are sequentially distributed in the length direction of the babinet, third side magnetic part and described
4th side magnetic part is located at the opposite both sides of the central magnetic part, and third side magnetic part is another away from the babinet
The distance at end is the first distance, and the distance of the other end of the 4th side magnetic part away from the babinet is second distance, described the
One distance is less than the second distance, and the length of third side magnetic part is less than the length of the 4th side magnetic part.
11. a kind of electronic equipment, which is characterized in that including the loud speaker described in claim 9 or 10.
12. electronic equipment according to claim 11, which is characterized in that the electronic equipment is mobile phone, tablet computer, hand
Table, wearable device or unmanned plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144305.8A CN108495241B (en) | 2018-02-12 | 2018-02-12 | A kind of vibration main body, loudspeaker and the electronic equipment of loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144305.8A CN108495241B (en) | 2018-02-12 | 2018-02-12 | A kind of vibration main body, loudspeaker and the electronic equipment of loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108495241A true CN108495241A (en) | 2018-09-04 |
| CN108495241B CN108495241B (en) | 2019-11-15 |
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ID=63340264
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144305.8A Active CN108495241B (en) | 2018-02-12 | 2018-02-12 | A kind of vibration main body, loudspeaker and the electronic equipment of loudspeaker |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020067842A1 (en) * | 2000-12-05 | 2002-06-06 | Osamu Takahashi | Speaker apparatus |
| CN1729547A (en) * | 2002-10-21 | 2006-02-01 | Bei传感器及系统有限公司 | Flat linear voice coil actuator with planar coils and a spring-type characteristic |
| CN205051862U (en) * | 2013-03-08 | 2016-02-24 | 松下知识产权经营株式会社 | Speaker and used electronic equipment of this speaker |
| CN107396253A (en) * | 2017-09-05 | 2017-11-24 | 奥音科技（北京）有限公司 | Electro-acoustic conversion device and its hitch |
| CN107613439A (en) * | 2017-10-20 | 2018-01-19 | 维沃移动通信有限公司 | The loudspeaker of a kind of electronic equipment and electronic equipment |
-
2018
- 2018-02-12 CN CN201810144305.8A patent/CN108495241B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020067842A1 (en) * | 2000-12-05 | 2002-06-06 | Osamu Takahashi | Speaker apparatus |
| CN1729547A (en) * | 2002-10-21 | 2006-02-01 | Bei传感器及系统有限公司 | Flat linear voice coil actuator with planar coils and a spring-type characteristic |
| CN205051862U (en) * | 2013-03-08 | 2016-02-24 | 松下知识产权经营株式会社 | Speaker and used electronic equipment of this speaker |
| CN107396253A (en) * | 2017-09-05 | 2017-11-24 | 奥音科技（北京）有限公司 | Electro-acoustic conversion device and its hitch |
| CN107613439A (en) * | 2017-10-20 | 2018-01-19 | 维沃移动通信有限公司 | The loudspeaker of a kind of electronic equipment and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108495241B (en) | 2019-11-15 |
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