CN209545851U - Loudspeaker mould group - Google Patents
Loudspeaker mould group Download PDFInfo
- Publication number
- CN209545851U CN209545851U CN201920610960.8U CN201920610960U CN209545851U CN 209545851 U CN209545851 U CN 209545851U CN 201920610960 U CN201920610960 U CN 201920610960U CN 209545851 U CN209545851 U CN 209545851U
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- Prior art keywords
- mould group
- extension
- position limiting
- limiting structure
- noumenon portion
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Casings For Electric Apparatus (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a kind of loudspeaker mould group, including the loudspeaker monomer for being formed with the shell of accommodating chamber and being housed in accommodating chamber；Loudspeaker mould group includes conduct piece, positioned at the position limiting structure of the rear operatic tunes；Conduct piece includes the first noumenon portion, the second body part and the third body part sequentially formed along long axis direction by bending；At least include to form the weld part being electrically connected with loudspeaker monomer in the first noumenon portion, further includes having the extension extended by the section edge in the first noumenon portion along short-axis direction in the first noumenon portion；Extension is configured as being abutted against with position limiting structure to limit the position of weld part in the first noumenon portion and generate offset.The problem of loudspeaker mould group provided by the utility model can be effectively eliminated easily makes the position of weld part on conduct piece generate offset since conduct piece bending place surplus is big, not high so as to cause weld part welding quality, poor reliability.
Description
Technical field
The utility model relates to electroacoustic techniques fields.More particularly, to a kind of loudspeaker mould group.
Background technique
Loudspeaker mould group is the important acoustic element of portable electronic device, for completing between electric signal and voice signal
Conversion, be a kind of energy conversion device.Loudspeaker mould group has generally included shell, contains loudspeaker monomer in shell, raises
Entire mould group inner cavity is divided into the preceding operatic tunes and the rear operatic tunes isolated from one another by sound device monomer.With the continuous development of electronic technology,
The function of portable electronic device is stronger and stronger, and components possessed by electronic equipment are also more and more, thus the sky needed
Between also just it is increasing.But the volume of portable electronic device but be increasingly miniaturized, it is lightening, in order to adapt to such feelings
Condition, technical staff attempt the components in portable electronic device being packaged into a component to reduce the space occupied, such as
MIC and loudspeaker monomer are packaged into mould group parts etc..
Since the position of each device in mould group parts is different, traditional has been unable to meet conducting respectively in flat conduct piece
The demand of device.Therefore in assembling, multi-pass, which is crossed, is arranged bending structure on conduct piece to realize device each in mould group parts
It is connected with external circuit.Flexible circuit board is mostly used to use as conduct piece in mould group parts, flexible circuit board material itself
Softer, when bending place surplus is larger, the position of weld part is easy to produce offset on conduct piece, so as to cause conduct piece weld part
Welding quality is bad between device bonding pad, and when carrying out drop test, the junction of conduct piece weld part and pad is easily disconnected
It splits, is unable to satisfy reliability requirement.
Utility model content
In view of the above problems, the technical problem to be solved by the present invention is to provide a kind of loudspeaker mould groups.This loudspeaker
Mould group can be effectively eliminated easily makes the position of weld part on conduct piece generate offset since conduct piece bending place surplus is big, to lead
The problem of cause weld part welding quality is not high, poor reliability.
In order to solve the above technical problems, the utility model adopts the following technical solutions:
A kind of loudspeaker mould group, including the loudspeaker monomer for being formed with the shell of accommodating chamber and being housed in accommodating chamber；Institute
State loudspeaker mould group include configuration after mould group the operatic tunes include long axis direction and short-axis direction conduct piece,
The loudspeaker mould group includes the position limiting structure positioned at the rear operatic tunes；
The conduct piece include along long axis direction by bending sequentially form the first noumenon portion, the second body part and
Third body part；
It at least include to form the weld part being electrically connected, the first noumenon with loudspeaker monomer in the first noumenon portion
It further include having the extension extended by the section edge in the first noumenon portion along short-axis direction in portion；
The extension is configured as being abutted against with the position limiting structure to limit the position of weld part in the first noumenon portion
Generate offset.
Further, it is preferable to scheme is, the conduct piece is flexible circuit board, the first noumenon portion, the second body part with
And third body part is integrally bent to form by flexible circuit board.
Further, it is preferable to which scheme is, the extension is widened on short-axis direction by the section in the first noumenon portion and is formed.
Further, it is preferable to which scheme is, the extension includes the section edge by the first noumenon portion along short-axis direction point
The first extension and the second extension not extended to the first noumenon portion two sides；
The position limiting structure includes the first position limiting structure of configuration corresponding with the first extension and the second extension respectively
With the second position limiting structure.
Further, it is preferable to which scheme is, the inner surface of housing wall corresponding with extension edge is arranged in the position limiting structure
On；
The position limiting structure and the housing wall are integrally formed or the position limiting structure is fixed on by way of bonding
On the shell.
Further, it is preferable to which scheme is, the position limiting structure is outside by housing sidewall inner surface corresponding with extension edge
The rib convexed to form is formed.
Further, it is preferable to scheme is, the position limiting structure is formed by shell bottom wall inner surface outwardly convex and extension
Edge corresponding lug boss in side is formed.
Further, it is preferable to which scheme is, the mould group includes the breathable barrier component in the operatic tunes after mould group, described
The double wall extended along housing bottom surface to top surface direction is formed on shell, breathe freely barrier assembly configuration in the double wall and with folder
The operatic tunes after mould group is divided into the first cavity and the second cavity together by wall；
The double wall includes the vertical edge extended along housing bottom surface to top surface direction corresponding with extension edge, institute
Position limiting structure is stated to be formed by the vertical edge of double wall.
Further, it is preferable to which scheme is, the ventilative barrier assembly includes positioned at the first of the first noumenon portion side position
Ventilative isolation part, the position limiting structure are formed in the vertical edge of double wall corresponding to the first ventilative isolation part.
Further, it is preferable to which scheme is, the ventilative barrier assembly further includes having by first ventilative isolation part one end bending simultaneously
The ventilative isolation part of second extended；The second ventilative isolation part is located at the top position in the first noumenon portion.
The beneficial effects of the utility model are as follows:
Compared with prior art, loudspeaker modular structure provided by the utility model, passes through bending structure on conduct piece
Design can satisfy the conducting demand in mould group between more devices and external circuit.And pass through extension and mould on conduct piece
Cooperation in group shell between position limiting structure can effectively be avoided because of conduct piece when surplus is larger at conduct piece bending structure
The problem of the material is soft, is influenced by conduct piece bending structure reset force, and positional shift easily occurs for conduct piece weld part occurs, from
And ensure that between conduct piece weld part and device bonding pad that there is good welding quality, and when carrying out drop test, conduct piece
The junction of weld part and pad is not easy to break, can satisfy reliability requirement.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 shows the partial structurtes installation diagram of the provided loudspeaker mould group of the utility model.
Fig. 2 shows the top views of structure as shown in Figure 1.
Fig. 3 shows the A-A cross-sectional view of structure shown in Fig. 2.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
In order to solve in prior art loudspeaker modular structure, the position of weld part bends vulnerable to conduct piece and ties on conduct piece
The problem of structure influences to generate offset, bad so as to cause welding quality between conduct piece weld part and device bonding pad, poor reliability.
Common shown in conjunction with Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of loudspeaker mould group, and the mould group includes being formed
Accommodating chamber is divided into that by the loudspeaker monomer for having the shell of accommodating chamber and being at least housed in accommodating chamber, the loudspeaker monomer
The preceding operatic tunes and the rear operatic tunes 10 of this isolation；In present embodiment, the module casing includes cooperating the mould group being fixed on together
Shell 2 and mould group lower casing 3 in upper casing 1, mould group.Before loudspeaker monomer and the mould group upper casing 1 or mould group lower casing 3 surround mould group
The operatic tunes, loudspeaker monomer, upper casing 1, middle shell 2 and lower casing 3 surround the operatic tunes 10 after mould group jointly.Those skilled in the art can manage
Solution, in other embodiments, module casing can also be collectively formed by upper casing and lower casing, sound after such structure lower die group
Chamber can be surrounded jointly by monomer and upper casing and lower casing, and present embodiment is without limitation.
In conjunction with shown in attached drawing, in order to enable the device of loudspeaker module internal to be connected with the circuit outside mould group, this reality
Apply mode loudspeaker mould group include configuration after mould group the operatic tunes 10 include long axis direction and short-axis direction conduct piece
4.Conduct piece 4 in loudspeaker mould group is generally included for welding the welding to be formed and be electrically connected with loudspeaker monomer internal circuit
Portion 411 and external connection portion for being electrically connected with external circuit.It should be noted that long axis direction described in this case and short axle
Direction, the extending direction for being interpreted as conduct piece 4 in a broad sense is long axis direction, and the width direction of conduct piece is short-axis direction.
In present embodiment, the conduct piece 4 includes along the first noumenon portion that long axis direction is sequentially formed by bending
41, the second body part 42 and third body part 43, weld part 411 are formed in the edge position in the first noumenon portion 41.It is excellent
Selection of land, the conduct piece 4 are flexible circuit board, and the first noumenon portion 41, the second body part 42 and third body part 43 are logical
Flexible circuit board is crossed integrally to be bent to form.Conduct piece 4 in present embodiment includes by the first noumenon portion 41, the second body part
42 and the bending structure 5 that is collectively formed of third body part 43, the first noumenon portion 41 be located at from the third body part 43 different
Horizontal plane on, and it is oppositely extending.The first noumenon portion 41 recline mould group upper casing 1 bottom surface extend, can save conduct piece occupancy
Mould group after the operatic tunes cavity space.
In conjunction with attached drawing as can be seen that the conduct piece 4 in present embodiment not only includes to be formed in the first noumenon portion 41
Weld part 411 and connect external connection portion with external circuit for being pierced by module casing, further include have in loudspeaker mould group its
The electrical connection section being formed on third body part 43 that its device (such as microphone) is cooperatively connected.
When such as microphone or other devices and loudspeaker monomer are assemblied in jointly in module casing and share a conduct piece
When, zero device of loudspeaker mould group can be effectively reduced, the structure of loudspeaker mould group is simplified, assembling difficulty is reduced, improves production
Efficiency.This kind includes the loudspeaker mould group of more devices, in order to adapt to the demand for the different location that more devices configure, certainly will led
The bending structure 5 of structure as shown is formed on electric part, although such conduct piece 4 with bending structure 5 can reduce conduction
Part is in the intracorporal cabling difficulty of shell, and under the premise of guaranteeing the combination stability between conduct piece and module casing, having can be into
One step reduces the advantages such as the possibility of loudspeaker modular structure size.But by conduct piece (such as flexible circuit board) itself, the material is soft
Limitation influenced by 4 bending structure of conduct piece, 5 reset force, welded on conduct piece 4 when 5 bending place surplus of bending structure is larger
The position of socket part 411 is also easy to produce offset, bad so as to cause welding quality between 4 weld part 411 of conduct piece and device bonding pad,
When carrying out drop test, 4 weld part 411 of conduct piece and the junction of pad are easily broken, and are unable to satisfy reliability requirement.
In view of the foregoing drawbacks, in the loudspeaker modular structure that present embodiment provides, the loudspeaker mould group includes position
In the position limiting structure of the rear operatic tunes 10；It include the section edge edge by the first noumenon portion 41 in the first noumenon portion 41 of conduct piece 4
The extension that short-axis direction extends；The extension is configured as being abutted against with the position limiting structure to limit the first noumenon portion
The position of weld part 411 generates offset on 41.Pass through matching between position limiting structure in extension on conduct piece 4 and module casing
It closes, weld part 411 on conduct piece 4 can be limited, when surplus is larger at 4 bending structure 5 of conduct piece, be can effectively avoid
Because the material is soft for conduct piece, influenced by conduct piece bending structure reset force, asking for positional shift easily occurs for conduct piece weld part
Topic occurs, and ensure that has good welding quality between conduct piece weld part and device bonding pad.
Formation for extension, preferably scheme are that the extension is by the section in the first noumenon portion 41 in short axle side
Widen to be formed upwards.It that is can be by increasing the width of flexible circuit board to realize matching for flexible circuit board and position limiting structure
Close limit.For the generation type of the position limiting structure, the position limiting structure is arranged in housing wall corresponding with extension edge
Inner surface on.For example, the position limiting structure can be formed by housing sidewall inner surface corresponding with extension edge.Either,
The position limiting structure is formed by the lug boss corresponding with extension side edge that shell bottom wall inner surface outwardly convex is formed.Or
Person is that the position limiting structure is formed by the rib that housing sidewall inner surface outwardly convex corresponding with extension edge is formed.It is right
In the combination of position limiting structure and housing wall, the position limiting structure can be integrated with the housing wall by way of integrated injection molding
Molding or the position limiting structure are individual component, are fixed on the housing by way of bonding.
It is shown in Figure 1 in attached drawing structure provided by the utility model, it is preferably carried out scheme as one kind, it is described
Extension includes extended respectively to the first noumenon portion two sides from the section edge in the first noumenon portion 41 along short-axis direction
One extension 412 and the second extension 413.The position limiting structure include respectively with the first extension 412 and the second extension
The first position limiting structure and the second position limiting structure of 413 corresponding configurations.
As shown in connection with fig. 1, first position limiting structure is located at the side of weld part 411, which is by shell
The formation of rib 6 that body sidewall inner surface outwardly convex is formed.Shape in the first noumenon portion 41 corresponding with the first position limiting structure rib 6
At there is the first extension 412, the outer side edges edge of first extension 412 abuts fixation with the surface of rib 6.Pass through above-mentioned first
The cooperation of extension 412 and the first position limiting structure rib 6 is formed from the side of weld part 411 to the position-limiting action of weld part.
In Fig. 1 and Fig. 3 it is common shown in loudspeaker modular structure, preferably embodiment, the mould group packet
The breathable barrier component 7 in the operatic tunes 10 after mould group is included, is formed on the shell along housing bottom surface to top surface direction
The double wall 8 of extension, the ventilative configuration of barrier assembly 7 in the double wall 8 and with double wall 8 together by mould group after the operatic tunes 10 be divided into the
One cavity 101 and the second cavity 102.Specifically, in present embodiment, the ventilative barrier assembly 7 includes positioned at first
First ventilative isolation part 71 of 41 side position of body portion, and bent and extended by first ventilative 71 one end of isolation part second
Ventilative isolation part 72；The second ventilative isolation part 72 is located at the top position in the first noumenon portion 41.
For including the modular structure of above-mentioned breathable barrier component 7, it is saturating that second position limiting structure is formed in first
On double wall 8 corresponding to gas isolation part 71, which includes the vertical edge 81 extended along housing bottom surface to top surface direction, institute
The second position limiting structure is stated to be formed by the vertical edge 81 of double wall 8.It include corresponding with the second position limiting structure in the first noumenon portion 41
The second extension 413, the outer lateral side edge of second extension 413 is vertical with the double wall 8 that forms the second position limiting structure
The surface of edge 81, which abuts, to be fixed.By the cooperation of above-mentioned second extension 413 and the second position limiting structure, formed from weld part
Position-limiting action of 411 other side to weld part.By above-mentioned design, the first position limiting structure and the first extension 412 are utilized
Cooperation and the cooperation of the second position limiting structure and the second extension 413 can be in the directions of 4 bending structure of conduct piece, 5 reset force
On the first noumenon portion 41 is limited so that the position of weld part 411 does not generate offset, and the first position limiting structure and second
Position limiting structure is located at the two sides of weld part 411, to increase the stability of limit, avoids the generation of the first noumenon portion 41
It shakes.
It will be appreciated by persons skilled in the art that the operatic tunes 10 is divided by ventilative barrier assembly 7 after mould group in this case
The first cavity 101 and the second cavity 102, wherein the first cavity 101 can be used as the filled cavity for filling sound-absorbing particle, sound-absorbing
Particle improves low frequency performance for reducing the F0 value of loudspeaker mould group, the first ventilative isolation part 71 and for barrier assembly of breathing freely
Two ventilative isolation parts 72 can prevent sound-absorbing particle from entering other regions of the rear operatic tunes, be conducive to protect loudspeaker monomer and other
Device, in present embodiment, the breathable barrier component can be by support frame and by way of bonding and support frame as described above
Fixed screen cloth composition is pasted, or the breathable barrier component well known in the art with other structures form can also be used.
In addition, the module casing is equipped with and is electrically connected respectively with two voice coil leads of loudspeaker monomer in present embodiment
The welding elastic slice 9 connect, welding elastic slice 9 are formed with the welding of weld part 411 in the first noumenon portion 41 and are electrically connected.The welding elastic slice
9 include the fixed part fixed with shell and are suspended at suspending part 91 after mould group in the operatic tunes, include on the suspending part 91
Through-hole, the weld part 411 in the first noumenon portion 41 cover the through-hole, and by way of soldering with welding elastic slice 9
Suspending part 91, which combines, to be fixed.The structure design of welding elastic slice suspending part can ensure the space utilization rate of the operatic tunes after mould group, improve
The voice quality of loudspeaker, and welded by welding elastic slice suspending part with conduct piece weld part, weld the heat of generation
It will not concentrate on the module casing being transmitted to around weld part, protect module casing deformation do not occur because of high temperature even broken
Damage, ensure that the assembling process of mould group appearance and subsequent loudspeaker mould group other devices.
By above embodiment as can be seen that loudspeaker modular structure provided by the utility model, using on conduct piece
Cooperation in extension and module casing between position limiting structure can effectively be kept away when surplus is larger at conduct piece bending structure
Exempt to be influenced by conduct piece bending structure reset force, positional shift easily occurs for conduct piece weld part because the material is soft for conduct piece
Problem occurs, so that ensure that has good welding quality between conduct piece weld part and device bonding pad.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is all to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The column of protection scope.
Claims (10)
1. a kind of loudspeaker mould group, including the loudspeaker monomer for being formed with the shell of accommodating chamber and being housed in accommodating chamber；It is described
Loudspeaker mould group include configuration after mould group the operatic tunes include long axis direction and short-axis direction conduct piece, feature exists
In,
The loudspeaker mould group includes the position limiting structure positioned at the rear operatic tunes；
The conduct piece includes the first noumenon portion, the second body part and the third sequentially formed along long axis direction by bending
Body part；
It at least include to form the weld part that is electrically connected with loudspeaker monomer in the first noumenon portion, in the first noumenon portion
It further include having the extension extended by the section edge in the first noumenon portion along short-axis direction；
The extension is configured as being abutted against with the position limiting structure to limit the generation of the position of weld part in the first noumenon portion
Offset.
2. mould group according to claim 1, which is characterized in that the conduct piece is flexible circuit board, the first noumenon
Portion, the second body part and third body part are integrally bent to form by flexible circuit board.
3. mould group according to claim 1, which is characterized in that the extension is by the section in the first noumenon portion in short axle side
Widen to be formed upwards.
4. mould group according to claim 1, which is characterized in that the extension includes the section side by the first noumenon portion
Along the first extension and the second extension extended respectively to the first noumenon portion two sides along short-axis direction；
The position limiting structure includes the first position limiting structure of configuration corresponding with the first extension and the second extension and respectively
Two position limiting structures.
5. mould group according to claim 1, which is characterized in that the position limiting structure is arranged corresponding with extension edge
On the inner surface of housing wall；
The position limiting structure and housing wall integrated molding or the position limiting structure are fixed on described by way of bonding
On shell.
6. mould group according to claim 5, which is characterized in that the position limiting structure is by shell corresponding with extension edge
The rib that side wall inner surfaces outwardly convex is formed is formed.
7. mould group according to claim 5, which is characterized in that the position limiting structure is by shell bottom wall inner surface outwardly convex
The lug boss corresponding with extension side edge formed is formed.
8. mould group according to claim 1, which is characterized in that the mould group includes ventilative in the operatic tunes after mould group
Separator component is formed with the double wall extended along housing bottom surface to top surface direction on the shell, and barrier assembly configuration of breathing freely exists
The first cavity and the second cavity are divided into the double wall and by the operatic tunes after mould group together with double wall；
The double wall includes the vertical edge extended along housing bottom surface to top surface direction corresponding with extension edge, the limit
Bit architecture is formed by the vertical edge of double wall.
9. mould group according to claim 8, which is characterized in that the ventilative barrier assembly includes positioned at the first noumenon portion
The ventilative isolation part of the first of side position, the position limiting structure are formed in the vertical edge of double wall corresponding to the first ventilative isolation part
On.
10. mould group according to claim 9, which is characterized in that the ventilative barrier assembly further includes having to be breathed freely by first
The second ventilative isolation part that isolation part one end bends and extends；The second ventilative isolation part is located at the top in the first noumenon portion
Position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610960.8U CN209545851U (en) | 2019-04-29 | 2019-04-29 | Loudspeaker mould group |
| PCT/CN2019/129011 WO2020220710A1 (en) | 2019-04-29 | 2019-12-27 | Speaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920610960.8U CN209545851U (en) | 2019-04-29 | 2019-04-29 | Loudspeaker mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209545851U true CN209545851U (en) | 2019-10-25 |
Family
ID=68246520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920610960.8U Active CN209545851U (en) | 2019-04-29 | 2019-04-29 | Loudspeaker mould group |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209545851U (en) |
| WO (1) | WO2020220710A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020220710A1 (en) * | 2019-04-29 | 2020-11-05 | 歌尔股份有限公司 | Speaker module |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4737081B2 (en) * | 2006-12-28 | 2011-07-27 | Ｔｄｋ株式会社 | Piezoelectric sounding body |
| CN208798211U (en) * | 2018-08-29 | 2019-04-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN208739413U (en) * | 2018-10-18 | 2019-04-12 | 歌尔科技有限公司 | A kind of acoustical generator mould group |
| CN209545851U (en) * | 2019-04-29 | 2019-10-25 | 歌尔科技有限公司 | Loudspeaker mould group |
-
2019
- 2019-04-29 CN CN201920610960.8U patent/CN209545851U/en active Active
- 2019-12-27 WO PCT/CN2019/129011 patent/WO2020220710A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020220710A1 (en) * | 2019-04-29 | 2020-11-05 | 歌尔股份有限公司 | Speaker module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020220710A1 (en) | 2020-11-05 |
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