CN106303857A - Double diaphragm loudspeaking component and loudspeaker arrangement - Google Patents
Double diaphragm loudspeaking component and loudspeaker arrangement Download PDFInfo
- Publication number
- CN106303857A CN106303857A CN201610812261.2A CN201610812261A CN106303857A CN 106303857 A CN106303857 A CN 106303857A CN 201610812261 A CN201610812261 A CN 201610812261A CN 106303857 A CN106303857 A CN 106303857A
- Authority
- CN
- China
- Prior art keywords
- voice coil
- circuit system
- magnetic circuit
- diaphragm
- loudspeaking component
- 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.)
- Withdrawn
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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
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/026—Transducers having separately controllable opposing diaphragms, e.g. for ring-tone and voice
-
- 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 open a kind of double diaphragm loudspeaking component of the present invention, including two monomers of raising one's voice, each monomer of raising one's voice all includes magnetic circuit system, vibrating diaphragm and voice coil loudspeaker voice coil, and voice coil loudspeaker voice coil is connected with vibrating diaphragm, and voice coil loudspeaker voice coil is contained in the magnetic gap of magnetic circuit system, the opening of the magnetic gap of two magnetic circuit systems is arranged dorsad.The present invention also provides for a kind of loudspeaker arrangement with described double diaphragm loudspeaking component.Based on such scheme, the present invention can provide higher sound pressure level, beneficially raising to raise one's voice loudness.
Description
Technical field
The present invention relates to electroacoustic techniques field, be specifically related to a kind of double diaphragm loudspeaking component and there is this double diaphragm raise one's voice
The loudspeaker arrangement of assembly.
Background technology
At present, speaker, as the vitals of the mobile terminal with voice play function, is widely used.
Mobile terminal requires that speaker has higher sound pressure level, and existing loudspeaker design commonly uses a vibrating diaphragm, improves acoustic pressure
Level (loudness) limited in one's ability.Therefore, it is necessary to propose a kind of loudspeaker design that can be effectively improved sound pressure level.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of double diaphragm loudspeaking component and loudspeaker arrangement, using the teaching of the invention it is possible to provide higher
Sound pressure level, beneficially raising are raised one's voice loudness.
The double diaphragm loudspeaking component of one embodiment of the invention, raises one's voice monomer including the first monomer and second of raising one's voice, and first raises
Sound monomer includes the first magnetic circuit system, the first vibrating diaphragm and the first voice coil loudspeaker voice coil, and the second monomer of raising one's voice includes the second magnetic circuit system, second shakes
Film and the second voice coil loudspeaker voice coil, the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil are contained in the first magnetic circuit system and the magnetic gap of the second magnetic circuit system respectively
In, the opening of the magnetic gap of the first magnetic circuit system and the second magnetic circuit system is arranged dorsad, and the first voice coil loudspeaker voice coil and the first vibrating diaphragm connect, the
Two voice coil loudspeaker voice coils and the second vibrating diaphragm connect.
Wherein, described double diaphragm loudspeaking component also includes separating dividing plate, and the first magnetic circuit system and the second magnetic circuit system are fixed
In the both sides separating dividing plate.
Wherein, the middle part of described separation dividing plate is provided with groove, and the first magnetic circuit system is arranged in groove, the second magnetic circuit system
System is arranged at around groove.
Wherein, described first magnetic circuit system and the second magnetic circuit system all include enclosing the parts setting rectangular four separation.
Wherein, each parts all include magnetic conductor bowl and the Magnet being arranged in magnetic conductor bowl, and Magnet is formed with magnetic gap.
Wherein, described double diaphragm loudspeaking component farther includes to house and fixes the first monomer and second of raising one's voice and raise one's voice monomer
Peripheral housing, separates dividing plate and is fixed in peripheral housing.
Wherein, the inwall of described peripheral housing is provided with support member, and the first monomer and second monomer of raising one's voice of raising one's voice also is distinguished
Including the first sub-housing and the second sub-housing, the first sub-housing is used for the edge pressure holding of the first vibrating diaphragm in the limit of peripheral housing
Edge, the second sub-housing is used for the edge pressure holding of the second vibrating diaphragm in support member.
Wherein, the first magnetic circuit system includes the first top dome being arranged at outside the first vibrating diaphragm, and the second magnetic circuit system includes setting
It is placed in the second top dome outside the second vibrating diaphragm.
Wherein, described first vibrating diaphragm and the second vibrating diaphragm all include central region and region, edge, and central region is flat
Face structure, region, edge is arcuate structure outwardly, and the first top dome and the second top dome are arranged at the planar junction of correspondence
On structure.
The loudspeaker arrangement of one embodiment of the invention, including above-mentioned double diaphragm loudspeaking component.
Beneficial effect: monomer of raising one's voice is overlapped in embodiment of the present invention design two, i.e. produces sound by two diaphragm oscillations, thus
Higher sound pressure level, beneficially raising can be provided to raise one's voice loudness.
Accompanying drawing explanation
Fig. 1 is the Facad structure overall schematic of the double diaphragm loudspeaking component of one embodiment of the invention；
Fig. 2 is the structure overall schematic of double diaphragm loudspeaking component shown in Fig. 1；
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of double diaphragm loudspeaking component shown in Fig. 1；
Fig. 4 is the STRUCTURE DECOMPOSITION schematic diagram of double diaphragm loudspeaking component shown in Fig. 2；
Fig. 5 is the structure cut-away view along line A-A of double diaphragm loudspeaking component shown in Fig. 1；
Fig. 6 is the structural representation of the parts of the first magnetic circuit system shown in Fig. 3.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the skill to each exemplary embodiment provided by the present invention
Art scheme is clearly and completely described.In the case of not conflicting, the technical characteristic in following embodiment and embodiment can
To be mutually combined.Further, the directional terminology that the present invention is used in full, such as " on ", the wording such as D score, be for more preferably
Each embodiment of description, be not intended to limit protection scope of the present invention.
Refer to Fig. 1-Fig. 5, for the double diaphragm loudspeaking component of one embodiment of the invention.Described double diaphragm loudspeaking component 10 wraps
Including the first monomer 11 and second of raising one's voice to raise one's voice monomer 12, the first monomer 11 of raising one's voice includes first magnetic circuit system the 111, first vibrating diaphragm
112 and first voice coil loudspeaker voice coil 113, the second monomer 12 of raising one's voice includes the second magnetic circuit system the 121, second vibrating diaphragm 122 and the second voice coil loudspeaker voice coil 123.
Wherein, the first voice coil loudspeaker voice coil 113 is connected with the first vibrating diaphragm 112, and the second voice coil loudspeaker voice coil 123 is connected with the second vibrating diaphragm 122.First voice coil loudspeaker voice coil 113 He
Second voice coil loudspeaker voice coil 123 is contained in the magnetic gap 13 of the first magnetic circuit system 111 and the second magnetic circuit system 121 respectively, the first magnetic circuit system
The opening of magnetic gap 13 of system 111 and the second magnetic circuit system 121 is arranged dorsad, i.e. the opening of the first magnetic circuit system 111 is towards the
One vibrating diaphragm 112, the opening of the second magnetic circuit system 121 is towards the second vibrating diaphragm 122.
First magnetic circuit system 111 and the second magnetic circuit system 121 realize fixing by a separation dividing plate 14.Such as Fig. 3 and Fig. 4 institute
Showing, this separation dividing plate 14 includes enclosing the main part 141 setting formation groove O and the edge part being positioned at described main part 141 surrounding
142, four edge parts 142 are plate body structure, and this separation dividing plate 14 is preferably integrated formed structure.Wherein, the second magnetic circuit system
121 are arranged in groove O, and the first magnetic circuit system 111 is arranged on four edge parts 142.Although it should be noted that the first magnetic
Road system 111 is arranged at around groove O, but the first magnetic circuit system 111 and the second magnetic circuit system 121 are fixed on separation dividing plate
The both sides of 14.Based on this structure, the size that the described first size raising one's voice monomer 11 raises one's voice monomer 12 more than described second, example
As, the area of the first vibrating diaphragm 112 is more than the area of the second vibrating diaphragm 122.
With continued reference to Fig. 1-Fig. 5, double diaphragm loudspeaking component 10 farther includes collecting and fixes first and raise one's voice monomer 11 and
The two peripheral housings 15 raising one's voice monomer 12, separate dividing plate 14 and are fixed in this periphery housing 15.Preferably, peripheral housing 15 is interior
Wall is provided with support member 151, first raise one's voice monomer 11 the first sub-housing A for by the edge pressure holding of the first vibrating diaphragm 112 in outward
The edge of casing body 15, second raise one's voice monomer 12 the second sub-housing B for by the edge pressure holding of the second vibrating diaphragm 122 in this support
On part 151.It addition, refering to Fig. 5, support member 151 can be also used for supporting separate dividing plate 14 be not provided with the first magnetic circuit system 111
Side.
Please join Fig. 3 and Fig. 4, the first magnetic circuit system 111 and the second magnetic circuit system 121 all include enclosing and set rectangular four points
From parts 16, four parts 16 are respectively arranged on four edge parts 142 separating dividing plate 14.Two length are bigger and equal
Parts 16 as the long limit of rectangle, the less and equal parts 16 of two length are as the minor face of rectangle.As shown in Figure 6, often
One parts 16 all include magnetic conductor bowl 161 and the Magnet 162 being arranged in magnetic conductor bowl 161, and magnetic conductor bowl 161 offers guide groove, magnetic
Ferrum 162 is arranged at the both sides of guide groove, can be formed for housing described first voice coil loudspeaker voice coil 113 and the magnetic gap 13 of the second voice coil loudspeaker voice coil 123.
In the present embodiment, the opposite polarity of the Magnet 162 of each magnetic gap 13 both sides it is positioned at.As a example by shown in Fig. 5,
In two magnetic conductor bowls being oppositely arranged 161 of the first magnetic circuit system 111, from left to right, adjacent to first magnetic gap 13 both sides
It is respectively N pole and the S pole of Magnet 162, the S pole being respectively Magnet 162 of neighbouring second magnetic gap 13 both sides and N pole.?
In two magnetic conductor bowls being oppositely arranged 161 of two magnetic circuit systems 121, from left to right, dividing adjacent to first magnetic gap 13 both sides
Not Wei the S pole of Magnet 162 and N pole, the N pole being respectively Magnet 162 of neighbouring second magnetic gap 13 both sides and S pole.
It is positioned at magnetic induction line produced by the Magnet 162 of magnetic gap 13 side by N pole, through the first corresponding voice coil loudspeaker voice coil
113 and second voice coil loudspeaker voice coil 123, enter the S pole of the Magnet 162 being positioned at magnetic gap 13 opposite side, and in the inside of this Magnet 162 by S
Pole flows to N pole.Then, magnetic induction line flows to be positioned at along magnetic conductor bowl 161 from the N pole of the Magnet 162 being positioned at magnetic gap 13 opposite side
The S pole of the Magnet 162 of magnetic gap 13 side, and flowed to N pole in the inside of this Magnet 162 by S pole, thus form complete magnetic strength
Line loop.In the first magnetic circuit system 111 and the second magnetic circuit system 121, the Magnet 162 in each parts 16 all can produce institute
State magnetic induction line loop.
Further, the first voice coil loudspeaker voice coil 113 and the second voice coil loudspeaker voice coil 123 are energized.Wherein, at the two of the first magnetic circuit system 111
In the individual magnetic conductor bowl 161 being oppositely arranged, the sense of current of the first voice coil loudspeaker voice coil 113 being positioned in left and right sides magnetic gap 13 is contrary, with
As a example by shown in Fig. 5, the sense of current in left side is that inwardly the sense of current on right side is outside.At the second magnetic circuit system 121 two
In the magnetic conductor bowl 161 being oppositely arranged, the sense of current of the second voice coil loudspeaker voice coil 123 being positioned in left and right sides magnetic gap 13 is contrary, with Fig. 5
As a example by Suo Shi, the sense of current in left side is that inwardly the sense of current on right side is outside.
According to Faraday law of electromagnetic induction, the first voice coil loudspeaker voice coil 113 of energising and the second voice coil loudspeaker voice coil 123 are in aforementioned magnetic induction line loop
In do cutting magnetic induction line motion and produce power, described power promotes the first vibrating diaphragm 112 and the second vibrating diaphragm 122 to vibrate respectively, then the
One vibrating diaphragm 112 and the second vibrating diaphragm 122 promote air vibration, thus produce sound.
It should be appreciated that embodiment illustrated in fig. 5 is only a kind of working method of described double diaphragm loudspeaking component 10, the present invention
Sense of current when embodiment can be energized by the polarity of adjustment Magnet 162 and the first voice coil loudspeaker voice coil 113 and the second voice coil loudspeaker voice coil 123,
Making double diaphragm loudspeaking component 10 produce sound, these broadly fall into the protection domain of the embodiment of the present invention.
When there being a signal of telecommunication to be given to double diaphragm loudspeaking component 10, i.e. the first voice coil loudspeaker voice coil 113 and the second voice coil loudspeaker voice coil 123 are led to
During electricity, the first vibrating diaphragm 112 and the second vibrating diaphragm 122 work (vibration) simultaneously, are compared to prior art and only have a vibrating diaphragm job,
The embodiment of the present invention is equivalent to increase effectively the vibrate area, i.e. vibrating diaphragm of double diaphragm loudspeaking component 10 and promotes air to vibrate
Effective area.Computing formula according to following sound pressure level, it is known that, the sound pressure level of double diaphragm loudspeaking component 10 and effective vibration plane
Long-pending direct proportionality, therefore the embodiment of the present invention can increase sound pressure level, beneficially raising and raises one's voice loudness.
Wherein, SPLrefRepresenting the sound pressure level of double diaphragm loudspeaking component 10, B represents the magnetic induction in magnetic gap 13, l
Represent that the first voice coil loudspeaker voice coil 113 and the second voice coil loudspeaker voice coil 123 cut the effective length of the magnetic induction line in magnetic gap 13, ReRepresent the first voice coil loudspeaker voice coil
113 and second DC impedance of voice coil loudspeaker voice coil 123, MmsRepresent first voice coil loudspeaker voice coil the 113, second voice coil loudspeaker voice coil 123 and the first vibrating diaphragm 112, second shake
The quality of film 122, SdRepresent double diaphragm loudspeaking component 10 effectively vibrates area.
Please continue to refer to Fig. 1-Fig. 5, described first magnetic circuit system 111 includes being arranged at first outside the first vibrating diaphragm 112
Top dome 171, the second magnetic circuit system 121 includes the second top dome 172 being arranged at outside the second vibrating diaphragm 122.Described first top dome 171
With the high-frequency cut-off frequency that the second top dome 172 can expand double diaphragm loudspeaking component 10.
First top dome 171 and the first vibrating diaphragm 112 are separate, and both can carry out solid by modes such as glue stickups
Fixed, in like manner, the second top dome 172 and the second vibrating diaphragm 122 are separate, and both also can carry out solid by modes such as glue stickups
Fixed.
Alternatively, as it is shown in figure 5, described first vibrating diaphragm 112 and the second vibrating diaphragm 122 all include central region and edge
Region, central region is planar structure, and region, edge is arcuate structure outwardly, the first top dome 171 and the second ball
Top 172 is arranged in the planar structure of correspondence.Wherein, the area of the first top dome 171 is more than the area of the second top dome 172.
The present invention also provides for the loudspeaker arrangement of an embodiment, including the double diaphragm loudspeaking component 10 of each embodiment above-mentioned,
Therefore there is same beneficial effect.Described loudspeaker arrangement includes but not limited to speaker.
Again illustrate, the foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every
Utilizing equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, between the most each embodiment, technology is special
That levies be combined with each other, or is directly or indirectly used in other relevant technical fields, and the patent being the most in like manner included in the present invention is protected
In the range of protecting.
Claims (10)
1. a double diaphragm loudspeaking component, it is characterised in that described double diaphragm loudspeaking component includes that first raises one's voice monomer and second
Raising one's voice monomer, the described first monomer of raising one's voice includes the first magnetic circuit system, the first vibrating diaphragm and the first voice coil loudspeaker voice coil, and described second raises one's voice monomer
It is contained in described respectively including the second magnetic circuit system, the second vibrating diaphragm and the second voice coil loudspeaker voice coil, described first voice coil loudspeaker voice coil and described second voice coil loudspeaker voice coil
In the magnetic gap of the first magnetic circuit system and described second magnetic circuit system, described first magnetic circuit system and described second magnetic circuit system
The opening of magnetic gap is arranged dorsad, and described first voice coil loudspeaker voice coil is connected with described first vibrating diaphragm, and described second voice coil loudspeaker voice coil shakes with described second
Film connects.
Double diaphragm loudspeaking component the most according to claim 1, it is characterised in that described double diaphragm loudspeaking component also includes point
The both sides of described separation dividing plate it are fixed on from dividing plate, described first magnetic circuit system and described second magnetic circuit system.
Double diaphragm loudspeaking component the most according to claim 2, it is characterised in that the middle part of described separation dividing plate is provided with recessed
Groove, described first magnetic circuit system is arranged in described groove, and described second magnetic circuit system is arranged at around described groove.
Double diaphragm loudspeaking component the most according to claim 3, it is characterised in that described first magnetic circuit system and described second
Magnetic circuit system all includes enclosing the parts setting rectangular four separation.
Double diaphragm loudspeaking component the most according to claim 4, it is characterised in that each described parts all include magnetic conductor bowl with
And it being arranged at the Magnet in described magnetic conductor bowl, described Magnet is formed with described magnetic gap.
Double diaphragm loudspeaking component the most according to claim 2, it is characterised in that described double diaphragm loudspeaking component wraps further
Including and house the fixing described first monomer and described second of raising one's voice and raise one's voice the peripheral housing of monomer, described separation dividing plate is fixed on described
In peripheral housing.
Double diaphragm loudspeaking component the most according to claim 6, it is characterised in that the inwall of described peripheral housing is provided with and props up
Support member, the described first monomer and described second monomer of raising one's voice of raising one's voice respectively further comprises the first sub-housing and the second sub-housing, described
First sub-housing is used for the edge pressure holding of described first vibrating diaphragm in the edge of described peripheral housing, and described second sub-housing is used for
By the edge pressure holding of described second vibrating diaphragm on described support member.
Double diaphragm loudspeaking component the most according to claim 1, it is characterised in that described first magnetic circuit system includes being arranged at
The first top dome outside described first vibrating diaphragm, described second magnetic circuit system includes being arranged at the second ball outside described second vibrating diaphragm
Top.
Double diaphragm loudspeaking component the most according to claim 8, it is characterised in that described first vibrating diaphragm and described second vibrating diaphragm
All including central region and region, edge, described central region is planar structure, and region, described edge is to evagination
The arcuate structure gone out, described first top dome and described second top dome are arranged in the described planar structure of correspondence.
10. a loudspeaker arrangement, it is characterised in that described loudspeaker arrangement includes the double diaphragm described in any one of claim 1-9
Loudspeaking component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610812261.2A CN106303857A (en) | 2016-09-07 | 2016-09-07 | Double diaphragm loudspeaking component and loudspeaker arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610812261.2A CN106303857A (en) | 2016-09-07 | 2016-09-07 | Double diaphragm loudspeaking component and loudspeaker arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106303857A true CN106303857A (en) | 2017-01-04 |
Family
ID=57709914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610812261.2A Withdrawn CN106303857A (en) | 2016-09-07 | 2016-09-07 | Double diaphragm loudspeaking component and loudspeaker arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106303857A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109089197A (en) * | 2018-07-27 | 2018-12-25 | Oppo广东移动通信有限公司 | Loudspeaker monomer, loudspeaker assembly and electronic equipment |
| CN109151680A (en) * | 2018-07-27 | 2019-01-04 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN109511061A (en) * | 2018-12-27 | 2019-03-22 | 歌尔股份有限公司 | Mini-sound device and electronic product |
| CN109756828A (en) * | 2019-01-15 | 2019-05-14 | 歌尔股份有限公司 | Sounding device and electronic equipment |
| CN110446145A (en) * | 2019-06-26 | 2019-11-12 | 瑞声科技(新加坡)有限公司 | Microphone device |
| WO2020000985A1 (en) * | 2018-06-25 | 2020-01-02 | 歌尔股份有限公司 | Sound production apparatus and portable terminal |
| WO2020000984A1 (en) * | 2018-06-25 | 2020-01-02 | 歌尔股份有限公司 | Microphone device and portable terminal |
| WO2020181893A1 (en) * | 2019-03-14 | 2020-09-17 | 歌尔股份有限公司 | Sound generation device and electronic product |
| CN111698615A (en) * | 2019-03-14 | 2020-09-22 | 歌尔股份有限公司 | Double-sided miniature sound production device and electronic product |
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| CN1384693A (en) * | 2001-05-08 | 2002-12-11 | 松下电器产业株式会社 | Loudspeaker and mobile terminal equipment |
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| CN201657287U (en) * | 2010-01-11 | 2010-11-24 | 瑞声声学科技(深圳)有限公司 | Double magnetic steel and double voice coil electromagnetic loudspeaker |
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| CN204906706U (en) * | 2015-09-06 | 2015-12-23 | 寻乌县爱馨泰电子商贸有限公司 | Hi -Fi loudspeaker |
| CN205283802U (en) * | 2015-12-29 | 2016-06-01 | 歌尔声学股份有限公司 | Speaker and electronic equipment |
| CN105681983A (en) * | 2016-01-12 | 2016-06-15 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
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| CN1384693A (en) * | 2001-05-08 | 2002-12-11 | 松下电器产业株式会社 | Loudspeaker and mobile terminal equipment |
| CN1384653A (en) * | 2001-05-09 | 2002-12-11 | 株式会社西铁城电子 | Loudspeaker |
| CN201657287U (en) * | 2010-01-11 | 2010-11-24 | 瑞声声学科技(深圳)有限公司 | Double magnetic steel and double voice coil electromagnetic loudspeaker |
| CN204069324U (en) * | 2014-07-18 | 2014-12-31 | 瑞声光电科技(常州)有限公司 | Acoustical generator |
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| CN204906706U (en) * | 2015-09-06 | 2015-12-23 | 寻乌县爱馨泰电子商贸有限公司 | Hi -Fi loudspeaker |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11483660B2 (en) | 2018-06-25 | 2022-10-25 | Goertek, Inc. | Sound production apparatus and portable terminal |
| WO2020000985A1 (en) * | 2018-06-25 | 2020-01-02 | 歌尔股份有限公司 | Sound production apparatus and portable terminal |
| WO2020000984A1 (en) * | 2018-06-25 | 2020-01-02 | 歌尔股份有限公司 | Microphone device and portable terminal |
| CN109151680A (en) * | 2018-07-27 | 2019-01-04 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN109089197A (en) * | 2018-07-27 | 2018-12-25 | Oppo广东移动通信有限公司 | Loudspeaker monomer, loudspeaker assembly and electronic equipment |
| CN109151680B (en) * | 2018-07-27 | 2020-09-04 | Oppo广东移动通信有限公司 | Electronic device |
| CN109511061A (en) * | 2018-12-27 | 2019-03-22 | 歌尔股份有限公司 | Mini-sound device and electronic product |
| CN109511061B (en) * | 2018-12-27 | 2024-04-05 | 歌尔股份有限公司 | Miniature sound generating device and electronic product |
| CN109756828A (en) * | 2019-01-15 | 2019-05-14 | 歌尔股份有限公司 | Sounding device and electronic equipment |
| CN109756828B (en) * | 2019-01-15 | 2021-02-19 | 歌尔股份有限公司 | Sound generating device and electronic equipment |
| CN111698621A (en) * | 2019-03-14 | 2020-09-22 | 歌尔股份有限公司 | Sound production device and electronic product |
| CN111698615A (en) * | 2019-03-14 | 2020-09-22 | 歌尔股份有限公司 | Double-sided miniature sound production device and electronic product |
| WO2020181893A1 (en) * | 2019-03-14 | 2020-09-17 | 歌尔股份有限公司 | Sound generation device and electronic product |
| CN110446145A (en) * | 2019-06-26 | 2019-11-12 | 瑞声科技(新加坡)有限公司 | Microphone device |
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| C06 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170104 |
|
| WW01 | Invention patent application withdrawn after publication |