CN107222815A - A kind of electric-conductor and sound-producing device - Google Patents
A kind of electric-conductor and sound-producing device Download PDFInfo
- Publication number
- CN107222815A CN107222815A CN201710495224.8A CN201710495224A CN107222815A CN 107222815 A CN107222815 A CN 107222815A CN 201710495224 A CN201710495224 A CN 201710495224A CN 107222815 A CN107222815 A CN 107222815A
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- CN
- China
- Prior art keywords
- electrical connection
- connection section
- electric
- conductor
- pars intermedia
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention discloses a kind of electric-conductor and sound-producing device.The electric-conductor includes the first electrical connection section and the second electrical connection section positioned at two ends, and for connecting the pars intermedia of first electrical connection section and the second electrical connection section, first electrical connection section and the second electrical connection section are made up of stainless steel, the pars intermedia is less than stainless steel by impedance value, and magnetic conductivity is weaker than the material of stainless steel and is made.The invention solves the problems that a technical problem be that the electric-conductor overall impedance for turning on electronic component and external circuit is big, permeability is high.
Description
Technical field
The present invention relates to electroacoustic techniques field, more particularly it relates to a kind of electric-conductor and sound-producing device.
Background technology
The electronic products such as existing sound-producing device generally comprise the electronics in the electric-conductor being molded in its housing, electronic product
Element is electrically connected by electric-conductor with external circuit.
Especially, in sound-producing device, its vibration component generally comprises voice coil loudspeaker voice coil.Electric-conductor in its shell is molded by sound
Circle is electrically connected with external circuit, to input sound electric signal.
Being provided with electric-conductor is used for the pad that welds together with voice coil leads, and for touching on outside tactile disk
The bending part of point elasticity contact.Thus, existing electric-conductor is typically made up of stainless steel, with ensure the hardness of electric-conductor with
And the reliability of bending.
But, electric-conductor is made up of stainless steel completely, and the overall impedance value of electric-conductor can be caused big, cause signal to pass
That passs is obstructed.In practice, the impedance value for the electric-conductor being made up completely of stainless steel is generally higher than 0.08 Ω.
Especially, the vibration component of sound-producing device is typically electrically connected by electric-conductor with external circuit.Electric-conductor
Impedance value conference influences the transmission of signal, causes sensitivity low, and then influences acoustical behavior.
In addition, stainless steel permeability is high, the integrated antenna performance of the electronic products such as sound-producing device can be influenceed.
Therefore, it is necessary to be improved to existing electric-conductor.
The content of the invention
It is an object of the present invention to provide the new solution of a kind of electric-conductor and sound-producing device.
There is provided a kind of electric-conductor according to the first aspect of the invention.The electric-conductor includes being electrically connected positioned at the first of two ends
Socket part and the second electrical connection section, and for connecting the pars intermedia of first electrical connection section and the second electrical connection section, described
One electrical connection section and the second electrical connection section are made up of stainless steel, and the pars intermedia is less than stainless steel by impedance value, and
The material that magnetic conductivity is weaker than stainless steel is made.
Alternatively, first electrical connection section is the welding disk of plane, and second electrical connection section is can occur elasticity
The kink of deformation, and the kink is provided with contact.
Alternatively, second electrical connection section includes being used to make the contact and the first of external electrical connections Elastic Contact
Crooked place.
Alternatively, second electrical connection section includes the second crooked place for being used to be molded the contact.
Alternatively, first electrical connection section is the welding disk of plane, and second electrical connection section is the welding disk of plane.
Alternatively, the material of the pars intermedia is copper or copper alloy.
Alternatively, the overall impedance value of the electric-conductor is less than 0.04 Ω.
Alternatively, the pars intermedia respectively with first electrical connection section and the second electrical connection section laser welding or riveting
It is fixed.
There is provided a kind of sound-producing device according to the second aspect of the invention.The sound-producing device includes：Housing；It is accommodated in institute
Magnetic circuit component and the vibration component in housing are stated, the vibration component includes vibrating diaphragm and the voice coil loudspeaker voice coil being fixed on vibrating diaphragm；And on
Electric-conductor is stated, the lead of the voice coil loudspeaker voice coil is connected with the first electrical connection section of the electric-conductor, the second electrical connection of the electric-conductor
Portion is electrically connected with external electrical connections.
Alternatively, the electric-conductor is as together with the injection of inserts and the housing；
Or, the electric-conductor is installed together with the housing buckle.
It was found by the inventors of the present invention that the vibration component of existing sound-producing device is typically electrically connected by electric-conductor with external circuit
It is connected together.Existing electric-conductor is made of stainless steel completely, and the overall impedance value of electric-conductor is big, and magnetic conductivity is strong.And electric-conductor
Impedance value conference influences the transmission of signal, causes sensitivity low, and then influences acoustical behavior.The permeability height of electric-conductor can influence
The integrated antenna performance of sound-producing device.
In electric-conductor and sound-producing device that the present invention is provided, the first electrical connection section and the second electrical connection section of electric-conductor be not by
Rust steel matter is made, and ensure that its hardness, ensure that the reliability electrically connected between electric-conductor and miscellaneous part.
The pars intermedia material impedance value of electric-conductor is less than stainless steel, and electric-conductor overall impedance value is small, and signal transmission is logical
Freely.The magnetic conductivity of pars intermedia material is weaker than stainless steel, can effectively reduce the influence to antenna performance.
The vibration component of sound-producing device is electrically connected by electric-conductor with external electrical connections, and signal transmits unobstructed, sensitivity
Height, tonequality is good；Magnetic conductivity is weak, and the influence to antenna performance is small.
Therefore, the technical assignment to be realized of the present invention or technical problem to be solved be those skilled in the art from
It is not expecting or it is not expected that, therefore the present invention is a kind of new technical scheme.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is the structural representation of the electric-conductor provided in an embodiment of the present invention；
Fig. 2 is the structural representation of the sound-producing device provided in an embodiment of the present invention；
Fig. 3 is the structural representation of the vibration component and electric-conductor provided in an embodiment of the present invention；
Fig. 4 is the exploded view of the sound-producing device provided in an embodiment of the present invention.
Wherein, 10：Electric-conductor；100：First electrical connection section；101：Pars intermedia；102：Second electrical connection section；1020：First
Crooked place；1021：Second crooked place；1022：Contact；1023：3rd crooked place；11：Voice coil loudspeaker voice coil；110：Lead；12：Shake
Film；13：Magnetic circuit component；14：Housing；140：Upper casing；141：Middle shell；142：Lower casing.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments does not limit this
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The invention provides a kind of electric-conductor, the electric-conductor can be applied in electronic product, and the electric-conductor can be by electronics
Electronic component in product is electrically connected with external electrical connections, to input or export electric signal.Reference picture 1, it is described
Electric-conductor 10 includes the first electrical connection section 100, the electrical connection section 102 of pars intermedia 101 and second.The He of first electrical connection section 100
Second electrical connection section 102 is located at the end positions of the electric-conductor 10 respectively.The pars intermedia 101 is located at the described first electrical connection
Between the electrical connection section 102 of portion 100 and second.First electrical connection section 100 is electrically connected by the pars intermedia 101 with described second
Socket part 102 links together.
First electrical connection section 100, the second electrical connection section 102 are made up of stainless steel.For example, described first is electrically connected
Socket part 100 can be made of SUS301H high-hardness stainless steels.The high mechanical strength of stainless steel, ensure that first is electrically connected
The hardness of socket part 100, the second electrical connection section 102, so that ensure to electrically connect between the electric-conductor 10 and miscellaneous part is reliable
Property.
The pars intermedia 101 is less than stainless steel by impedance value and magnetic conductivity is weaker than the material system of stainless steel
Into.So, the impedance value of the material of pars intermedia 101 is relatively low, can reduce the overall impedance value of the electric-conductor 10, electric signal
Transmission is more unobstructed, and the sensitivity of electronic component is high.The magnetic conductivity of the material of pars intermedia 10 is weaker than stainless steel, can be effective
Reduce the influence to product antenna performance.
In one example, the conduction being made up of first electrical connection section 100, the second electrical connection section 102 and pars intermedia 101
The overall impedance value of part 10 is smaller than 0.04 Ω.In concrete practice, the entirety for the electric-conductor 10 being made up completely of stainless steel
Resistance is generally higher than 0.08 Ω, and signal transmission is obstructed, and the sensitivity of electronic component is low.When the pars intermedia 101 is by impedance value
When relatively low material is made, the overall impedance value of the electric-conductor 10 is less than 0.04 Ω, and signal transmits unobstructed, the spirit of electronic component
Sensitivity is high.
The specific material of the pars intermedia 101 can have a variety of.
In one example, the pars intermedia 101 can be made up of copper material.Copper material has good electric conductivity, can drop
The overall impedance of the low electric-conductor 10.Moreover, copper material can effectively reduce the influence to antenna performance without magnetic conductivity.
In one example, the pars intermedia 101 can be made up of the relatively low Copper alloy material of impedance value.For example, the copper is closed
Gold can be brass, phosphor bronze etc..
In one example, the pars intermedia 101 can be made up of the material of surface gold-plating.
In one example, the pars intermedia 101 also can jointly be made up of the relatively low material of a variety of resistances.Between various material
It can be linked together by modes such as laser welding, rivetings.
Electrically connected between the electric-conductor 10 and miscellaneous part.First electrical connection section 100, the second electrical connection section 102
Concrete structure and combination can have a variety of.
In one example, first electrical connection section 100 is the welding disk of plane.Second electrical connection section 102 is also
The welding disk of plane.Pad is equipped with the welding disk.102 points of first electrical connection section, 100 and second electrical connection section
Do not welded by the pad and miscellaneous part, to be electrically connected.The welding disk is made up of stainless steel, and machinery is strong
Degree is high, ensure that the hardness of pad, is unlikely to deform.
In another example, with reference to Fig. 1, first electrical connection section 100 is the welding disk of plane.Set on the welding disk
There is pad.First electrical connection section 100 is welded by the pad and miscellaneous part, and high mechanical strength ensure that pad
Hardness, be unlikely to deform.Second electrical connection section 102 is can occur elastically-deformable kink.Moreover, the kink
It is provided with contact 1022.Second electrical connection section 102 is electrically connected by the contact and external electrical connections.It is described
Second electrical connection section 102 is made up of stainless steel, high mechanical strength, ensure that the reliability of bending is high.
Second electrical connection section 102 is at least bent once, to enable the contact 1022 and external component elastic connecting
Touch.For example, external electrical connections can be tactile disk, the contact 1022 is with outside tactile disk Elastic Contact to be electrically connected.
In the embodiment, second electrical connection section 102 can be the laminated structure of thinner thickness.Second electrical connection section
102 include the first crooked place 1020.In first crooked place 1020, bent along the thickness direction of the electric-conductor 10,
To be molded the kink.Second electrical connection section 102 is Part I and second by 1020 points of first crooked place
Part.The contact 1022 is located at the Part I.The pars intermedia 101 passes through the Part II and the Part I
Connection.
Second electrical connection section 102 can produce the contact on elastic deformation, second electrical connection section 102 after bending
1022 can be with external electrical connections Elastic Contact.For example, first crooked place 1020 can curved structure after bending.Example
Such as, the angle between the Part I and Part II is smaller than 90 degree.
Electronic component in electronic product is electrically connected by the electric-conductor 10 with external electrical connections.Electronics member
Part is electrically connected with first electrical connection section 100, and second electrical connection section 102 is electrically connected with external electrical connections.
For example, the pars intermedia 101 can be the laminated structure with certain length, will first electrical connection section 100 and described the
Two electrical connection sections 102 link together.
The generation type of the contact 1022 can have a variety of.
In one example, salient point can be directly provided with second electrical connection section 102.
In another example, with reference to Fig. 1, second electrical connection section 102 may include for being molded the contact 1022
Second crooked place 1021.In second crooked place 1021, bent along the thickness direction of the electric-conductor, it is described to be molded
Contact 1022.For example, along second crooked place 1021 bend after, second electrical connection section 102 can it is curved, folding shape or
Person's other shapes.
First electrical connection section 100, the second electrical connection section 102 are made up with the pars intermedia 101 of unlike material.It is described
Pars intermedia 101 needs to link together with first electrical connection section 100, the second electrical connection section 102 respectively.Connection side between it
Formula can have a variety of.
In one example, the pars intermedia 101 can swash with first electrical connection section 100, the second electrical connection section 102 respectively
Flush weld is connected together.The solderable different physical property metals of laser welding, also deform that small, weld strength is high, surface state with workpiece
The advantages of good.
In one example, the pars intermedia 101 can respectively with first electrical connection section 100, the riveting of the second electrical connection section 102
Connect and be fixed together.
Present invention also offers a kind of sound-producing device.Referring to figs. 1 to Fig. 3, the sound-producing device includes housing 14, invention and provided
Electric-conductor 10 and the magnetic circuit component and vibration component that are accommodated in the housing 14.The vibration component includes vibrating diaphragm 12
With the voice coil loudspeaker voice coil 11 being fixed on the vibrating diaphragm 12.The lead 110 of the voice coil loudspeaker voice coil 11 passes through the electric-conductor 10 and external electrical connections
Part is electrically connected.
Specifically, with reference to Fig. 3, the voice coil loudspeaker voice coil 11 includes a pair of lead wires 110.The quantity of the electric-conductor 10 has two.One
The lead 110 is respectively welded on the first electrical connection section 100 of the electric-conductor 10.The second of the electric-conductor 10 is electrically connected
Fitting 102 is electrically connected with external electrical connections.So, lead 110 described in a pair passes through two electric-conductors respectively
10 are electrically connected with external circuit.
Alternatively, with reference to Fig. 2, together with the electric-conductor 10 can be molded as inserts with the housing 14.For example, described
Electric-conductor 10 can be molded in the shell wall of the housing 14.For example, the surface of the electric-conductor 10 can coating.
Alternatively, the electric-conductor 10 is installed together with the buckle of housing 14.For example, in the shell wall of the housing 14
In can be provided with neck, the electric-conductor 10 install with the neck.
The concrete structure of the magnetic circuit component can use prior art, and therefore not to repeat here.
The concrete structure of the housing 14 can have a variety of.For example, the sound-producing device can be loudspeaker monomer or raise
Sound device module etc..
In one example, with reference to Fig. 4, the housing 14 may include upper casing 140, lower casing 142 and positioned at the upper casing 140 with
Middle shell 141 between lower casing 142.The upper casing 140, middle shell 141 and lower casing 142 are with accommodating chamber, the He of magnetic circuit component 13
Vibration component is accommodated in the accommodating chamber.Together with the electric-conductor 10 is molded with the middle shell 141 as inserts.Described
Upper casing 140 or lower casing 142 are provided with the escape groove for being used for passing second electrical connection section 102 or avoid space.
First electrical connection section 100, the structure of the second electrical connection section 100 can have a variety of.
In one example, with reference to Fig. 1, Fig. 2, first electrical connection section 100 is the welding disk of plane.Described second is electrically connected
Socket part 102 is can occur elastically-deformable kink.The kink is provided with contact 1022.Second electrical connection section
102 pass the housing 14, so that the contact 1022 and external electrical connections Elastic Contact.For example, external electrical connections can
For tactile disk.
In the embodiment, the mode that second electrical connection section 102 passes the housing 14 can have a variety of.Alternatively,
With reference to Fig. 2, escape groove is provided with the housing 14.The part of second electrical connection section 102 passes the escape groove.Example
Such as, the position of the contact 1022 can above the escape groove the week side of boss the outer surface of housing 14.
In the embodiment, the contact 1022 on second electrical connection section 102 need to be connected electrically in one with external electrical connections
Rise.Alternatively, referring to figs. 1 to Fig. 3, second electrical connection section 102 can also include the 3rd crooked place 1023.Described 3rd
Crooked place 1023 is located between the pars intermedia 101 and first crooked place 1020.In the 3rd crooked place
1023, bent along the width of the pars intermedia 101.So, it can make between the contact 1022 and external electrical connections
Position is corresponding.
In addition, referring to figs. 1 to Fig. 3, due to the structure of housing 14, the limitation of external electrical connections position, the centre
Portion 101 is bent to be set.
The crooked place material of the pars intermedia 101 can be consistent with other positions material.For example, the pars intermedia
101 all can be made up of copper material.
The crooked place material of the pars intermedia 101 also can be different from other positions material.For example, the pars intermedia 101
Crooked place material can be made up of the high mechanical properties material such as stainless steel.
So, designed by the bending of the pars intermedia 101, can cause first electrical connection section 100 corresponds to described
The position of sound-producing device component, second electrical connection section 102 corresponds to the position of external electrical connections.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel are it should be understood that example above is merely to illustrate, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
1. a kind of electric-conductor, it is characterised in that including positioned at first electrical connection section (100) at two ends and the second electrical connection section
(102), and for connecting the pars intermedia (101) of first electrical connection section (100) and the second electrical connection section (102),
First electrical connection section (100) and the second electrical connection section (102) are made up of stainless steel,
The pars intermedia (101) is less than stainless steel by impedance value, and magnetic conductivity is weaker than the material of stainless steel and is made.
2. electric-conductor according to claim 1, it is characterised in that first electrical connection section (100) is the pad of plane
Portion, is elastically-deformable kink can occur for second electrical connection section (102), and the kink is provided with contact
(1022)。
3. electric-conductor according to claim 2, it is characterised in that second electrical connection section (102) includes being used to make institute
State the first crooked place (1020) of contact (1022) and external electrical connections Elastic Contact.
4. electric-conductor according to claim 2, it is characterised in that second electrical connection section (102) includes being used to be molded
The second crooked place (1021) of the contact (1022).
5. electric-conductor according to claim 1, it is characterised in that first electrical connection section (100) is the pad of plane
Portion, second electrical connection section (102) is the welding disk of plane.
6. electric-conductor according to claim 1, it is characterised in that the material of the pars intermedia (101) is that copper or copper are closed
Gold.
7. electric-conductor according to claim 1, it is characterised in that the overall impedance value of the electric-conductor (10) is less than 0.04
Ω。
8. electric-conductor according to claim 1, it is characterised in that the pars intermedia (101) is electrically connected with described first respectively
Socket part (100) and the second electrical connection section (102) laser welding or riveting are fixed.
9. a kind of sound-producing device, it is characterised in that including：
Housing (14)；
Magnetic circuit component (13) and vibration component in the housing (14) are accommodated in, the vibration component includes vibrating diaphragm (12) and solid
Due to the voice coil loudspeaker voice coil (11) on vibrating diaphragm (12)；And
Electric-conductor (10) according to any one of claim 1-8, lead (110) and the conduction of the voice coil loudspeaker voice coil (11)
The first electrical connection section (100) connection of part (10), the second electrical connection section (102) and external electrical connections of the electric-conductor (10)
Electrical connection.
10. sound-producing device according to claim 9, it is characterised in that the electric-conductor (10) is used as inserts and the shell
Body (14) is molded together；
Or the electric-conductor (10) is installed together with the housing (14) buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495224.8A CN107222815B (en) | 2017-06-26 | 2017-06-26 | Conductive piece and sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495224.8A CN107222815B (en) | 2017-06-26 | 2017-06-26 | Conductive piece and sounding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107222815A true CN107222815A (en) | 2017-09-29 |
| CN107222815B CN107222815B (en) | 2023-08-04 |
Family
ID=59951345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710495224.8A Active CN107222815B (en) | 2017-06-26 | 2017-06-26 | Conductive piece and sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107222815B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182424A (en) * | 2019-12-20 | 2020-05-19 | 歌尔股份有限公司 | Sound production device and electronic terminal |
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| JP2005317369A (en) * | 2004-04-28 | 2005-11-10 | Polymatech Co Ltd | Conductive elastic connector |
| US20060233417A1 (en) * | 2005-04-19 | 2006-10-19 | Steere John F | Electro-dynamic planar loudspeaker |
| CN204616075U (en) * | 2015-04-15 | 2015-09-02 | 歌尔声学股份有限公司 | Loud speaker module |
| CN205029865U (en) * | 2015-10-27 | 2016-02-10 | 歌尔声学股份有限公司 | Loudspeaker |
| CN206024101U (en) * | 2016-08-09 | 2017-03-15 | 歌尔股份有限公司 | Loudspeaker module and mobile terminal |
| CN206948604U (en) * | 2017-06-26 | 2018-01-30 | 歌尔股份有限公司 | A kind of electric-conductor and sound-producing device |
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2017
- 2017-06-26 CN CN201710495224.8A patent/CN107222815B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005317369A (en) * | 2004-04-28 | 2005-11-10 | Polymatech Co Ltd | Conductive elastic connector |
| US20060233417A1 (en) * | 2005-04-19 | 2006-10-19 | Steere John F | Electro-dynamic planar loudspeaker |
| CN204616075U (en) * | 2015-04-15 | 2015-09-02 | 歌尔声学股份有限公司 | Loud speaker module |
| CN205029865U (en) * | 2015-10-27 | 2016-02-10 | 歌尔声学股份有限公司 | Loudspeaker |
| CN206024101U (en) * | 2016-08-09 | 2017-03-15 | 歌尔股份有限公司 | Loudspeaker module and mobile terminal |
| CN206948604U (en) * | 2017-06-26 | 2018-01-30 | 歌尔股份有限公司 | A kind of electric-conductor and sound-producing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111182424A (en) * | 2019-12-20 | 2020-05-19 | 歌尔股份有限公司 | Sound production device and electronic terminal |
| WO2021120916A1 (en) * | 2019-12-20 | 2021-06-24 | 歌尔股份有限公司 | Sound production apparatus and electronic terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107222815B (en) | 2023-08-04 |
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