CN215871769U - Microphone module and terminal equipment - Google Patents
Microphone module and terminal equipment Download PDFInfo
- Publication number
- CN215871769U CN215871769U CN202122346225.0U CN202122346225U CN215871769U CN 215871769 U CN215871769 U CN 215871769U CN 202122346225 U CN202122346225 U CN 202122346225U CN 215871769 U CN215871769 U CN 215871769U
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- microphone module
- microphone
- shell
- circuit board
- housing
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- 239000000178 monomer Substances 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- -1 Polyoxymethylene Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a microphone module and terminal equipment. The microphone module comprises a shell, a microphone unit and a circuit board, wherein the shell is internally provided with a containing cavity, the shell is further provided with a plug port communicated with the containing cavity, the microphone unit is arranged in the containing cavity, the circuit board is electrically connected with the microphone unit, the circuit board is further provided with a wiring end, and the wiring end faces towards the plug port and is used for being connected with an external circuit. The technical scheme of the utility model aims to simplify the circuit connection mode of the microphone module and the outside, reduce the design difficulty of the microphone module and reduce the cost of the microphone module.
Description
Technical Field
The utility model relates to the technical field of sound-electricity conversion equipment, in particular to a microphone module and terminal equipment using the same.
Background
The existing microphone module comprises a shell, a circuit board arranged in the inner cavity of the shell, a microphone monomer and the like. In order to connect the microphone module and the circuit of the external terminal, it is common to lead out a connection line with a connector from the circuit board of the microphone module or add an integrated connector to the microphone module. If the structural design of leading out the connecting wire is adopted, the structure of preventing dragging of wire rod then need be considered, if adopt the structural design who increases integrated connector on the circuit board, also need consider integrated connector's occupation space and the interference problem of components and parts and this connector on the circuit board, these two kinds of modes all can increase the degree of difficulty of design, cause the problem such as with high costs of microphone module.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a microphone module, aiming at simplifying the circuit connection mode between the microphone module and the outside, reducing the design difficulty of the microphone module and reducing the cost of the microphone module.
In order to achieve the above object, the present invention provides a microphone module, including:
the shell is internally provided with an accommodating cavity, and the shell is also provided with a plug port communicated with the accommodating cavity;
the microphone single body is arranged in the accommodating cavity; and
the circuit board is arranged in the accommodating cavity and electrically connected with the microphone monomer, and a wiring end is further arranged on the circuit board and faces the plug interface and is used for being connected with an external circuit.
In an embodiment of the present invention, the accommodating cavity includes a mounting space and an extending space connected with each other, and the socket is communicated with the extending space;
the circuit board comprises a main board body and a connecting board, the main board body is arranged in the installation space, the microphone monomers are fixed on the surface of the main board body, the connecting board is convexly arranged on the side edge of the main board body and faces the extending space, and the wiring end is arranged on the connecting board.
In an embodiment of the present invention, the terminal is two conducting strips arranged at an interval, and the conducting strips are embedded in the connecting plate.
In an embodiment of the present invention, the connecting plate has a length direction and a width direction, the conductive sheets extend along the length direction of the connecting plate, and the two conductive sheets are spaced apart along the width direction of the connecting plate.
In an embodiment of the present invention, the housing includes a first shell and a second shell, the first shell includes a first main body portion and a first connecting portion, and the first connecting portion is convexly disposed on a side edge of the first main body portion; the second shell comprises a second main body part and a second connecting part, and the second connecting part is convexly arranged on the side edge of the second main body part;
the first shell is connected with the second shell, the first main body part and the second main body part enclose to form the installation space, and the first connecting part and the second connecting part enclose to form the extension space and the interface.
In an embodiment of the utility model, the first connecting portion or the second connecting portion is further provided with a limiting hole, and a central axis of the limiting hole and a central axis of the socket form an included angle.
In an embodiment of the present invention, the circuit board is provided with a through hole corresponding to the microphone unit, and the housing is provided with a sound hole corresponding to the through hole.
In an embodiment of the utility model, the microphone module further includes a dust screen, and the dust screen is fixed to the housing and covers the sound hole.
In an embodiment of the utility model, the microphone module further includes a sealing member, the sealing member is sandwiched between the circuit board and the housing, and the sealing member is further provided with a avoiding hole corresponding to the sound hole.
The utility model also provides terminal equipment which comprises the microphone module.
The microphone module comprises a shell, a microphone monomer and a circuit board. The inside chamber that holds that is used for installing microphone monomer and circuit board that forms of casing, the casing still is equipped with the interface that the intercommunication holds the chamber. The circuit board is provided with a wiring terminal, and the wiring terminal is arranged towards the interface. When the circuit of the microphone module needs to be communicated with an external (such as terminal equipment) circuit, the circuit of the microphone module can be communicated with the external (such as terminal equipment) circuit only by inserting the plug of the data line into the jack and communicating the circuit in the plug with the terminal. This real novel technical scheme need not draw forth the connecting wire that has the connector on the circuit board of microphone module, also need not increase integrated connector structure on the microphone module, has simplified microphone module and outside circuit connection mode, reduces the design degree of difficulty of microphone module. Meanwhile, the wiring terminal in the technical scheme of the utility model has a simple structure, simplifies the assembly process, and further reduces the production and design cost of the microphone module.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a microphone module according to an embodiment of the utility model;
fig. 2 is a schematic structural view of the microphone module of fig. 1 from another angle;
FIG. 3 is an exploded view of the microphone module shown in FIG. 1;
fig. 4 is a schematic structural diagram of the connection between the microphone module and the plug according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be fixedly connected, also connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a microphone module 100.
Referring to fig. 1 to 4, a microphone module 100 according to an embodiment of the present invention includes a housing 10, a microphone unit 40, and a circuit board 30. An accommodating cavity 15 is formed inside the shell 10, and the shell 10 is further provided with a socket 16 communicated with the accommodating cavity 15; the microphone single body 40 is arranged in the accommodating cavity 15; the circuit board 30 is disposed in the accommodating cavity 15, the circuit board 30 is electrically connected to the microphone unit 40, the circuit board 30 is further provided with a terminal 35, and the terminal 35 is disposed toward the socket 16.
The microphone module 100 according to the present invention includes a housing 10, a microphone unit 40, and a circuit board 30. The housing 10 forms an accommodating chamber 15 for mounting the microphone unit 40 and the circuit board 30 therein, and the housing 10 is further provided with a socket 16 communicating with the accommodating chamber 15. The circuit board 30 is provided with a terminal 35, and the terminal 35 is disposed toward the jack 16. When the circuit of the microphone module 100 needs to be communicated with an external circuit (for example, a terminal device), the circuit of the microphone module 100 and the terminal device can be communicated only by inserting the plug 200 using the data line into the jack 16 to communicate the circuit in the plug 200 with the terminal 35. This novel technical scheme of reality need not draw forth the connecting wire that has the connector on microphone module 100's circuit board 30, also need not increase integrated connector on microphone module 100, can simplify microphone module 100's structure, reduces microphone module 100's the design degree of difficulty. Meanwhile, the terminal 35 in the technical scheme of the utility model has a simple structure, simplifies the assembly, and further reduces the production and design cost of the microphone module 100.
The housing 10 is made of plastic, for example, the housing 10 may be made of ABS (Acrylonitrile Butadiene Styrene plastic, terpolymer of Acrylonitrile, Butadiene, and Styrene), POM (Polyoxymethylene), PS (Polystyrene), PMMA (polymethyl methacrylate), PC (Polycarbonate), PET (polyethylene glycol terephthalate), and the like, so as to save cost. The housing 10 may have a circular shape, a square shape, or the like, as long as the housing chamber 15 for mounting the microphone unit 40, the circuit board 30, and the like can be formed inside the housing 10.
Specifically, the housing 10 is connected by a first case 11 and a second case 13. The first housing 11 and the second housing 13 may be detachably connected by a screw, a snap, or the like, or the first housing 11 and the second housing 13 may be welded into an integral structure by ultrasonic waves or the like. The first housing 11 includes a first main body 111 and a first connecting portion 113, and the first connecting portion 113 is protruded at a side of the first main body 111; the second housing 13 is similar in structure to the first housing 11. That is, the second housing 13 includes a second body 131 and a second connecting portion 133, and the second connecting portion 133 is protruded at a side of the second body 131. After the first housing 11 and the second housing 13 are connected, the first body portion 111 and the second body portion 131 enclose to form a mounting space, and the first connecting portion 113 and the second connecting portion 133 enclose to form an extending space and the socket 16. So, can conveniently hold the installation and the assembly of the inside part of chamber 15, promote assembly efficiency. Meanwhile, the first housing 11 and the second housing 13 may also provide protection for the components in the receiving cavity 15 from damage to the internal components. As can be appreciated, the socket 16 is directly formed by the first housing 11 and the second housing 13, which simplifies the opening process of the housing 10 and improves the production efficiency. Moreover, the inner wall of the socket 16 is also matched with the surface of the plug 200 to improve the efficiency of plugging.
Referring to fig. 4, in an embodiment of the present invention, the first connecting portion 113 or the second connecting portion 133 is further provided with a limiting hole 17, and a central axis of the limiting hole 17 forms an included angle with a central axis of the socket 16.
In an embodiment of the utility model, the limiting hole 17 may be disposed on the first connecting portion 113 or disposed on the second connecting portion 133, which is not limited herein. The surface of the plug 200 is further provided with a limit buckle 210, and the limit buckle 210 corresponds to the position of the limit hole 17 and is adaptive in shape. When the plug 200 is inserted into the socket 16, the position-limiting buckle 210 is engaged with the position-limiting hole 17 to prevent the plug 200 from being separated, thereby improving the stability of plugging. Further, the central axis of the limiting hole 17 is perpendicular to the central axis of the socket 16, and when the limiting buckle 210 is inserted into the limiting hole 17, the movement direction of the limiting buckle 210 is different from the movement direction of the plug 200 and the housing 10 when the plug 200 and the housing 10 are separated, so that the plug 200 and the housing 10 can be effectively prevented from being separated accidentally.
The circuit board 30 is a printed circuit board 30, and a control circuit for converting sound into an electrical signal is disposed on the circuit board 30. The microphone unit 40 is fixed to the surface of the circuit board 30 and communicates with the circuit on the circuit board 30. Specifically, the microphone unit 40 may be fixed to the surface of the circuit board 30 by soldering, or may be fixed to the surface of the circuit board 30 by gluing, as long as the microphone unit 40 is communicated with the circuit on the circuit board 30, and the fixing manner between the microphone unit 40 and the circuit board 30 is not limited herein. Thus, the circuit board 30 can not only connect the electronic components, but also serve as an output terminal of the connector to replace the function of the connector. When an external circuit is inserted into the jack 16 through the plug 200, the circuit structure in the plug 200 contacts with the terminal 35, so that the circuit board 30 is communicated with an external circuit, and the structure of the microphone module 100 is simplified.
Referring to fig. 1 to 3, in an embodiment of the present invention, the accommodating cavity 15 includes a mounting space (not labeled) and an extending space (not labeled) connected to each other, and the socket 16 is communicated with the extending space;
In the technical solution of an embodiment of the present invention, the mounting space is used for accommodating the circuit board 30 body and the microphone unit 40, and the extension space is mainly used for accommodating the connection board 33. Specifically, the terminal 35 is two conducting strips arranged at intervals, the conducting strips are embedded in the connecting plate 33 and integrated with the connecting plate 33, and the reliability of connection between the conducting strips and the connecting plate 33 is improved. Referring to fig. 3, the connecting plate 33 has a length direction and a width direction, the conductive sheets are disposed along the length direction of the connecting plate 33, and the two conductive sheets are disposed at intervals along the width direction of the connecting plate 33. The two conducting strips are respectively the anode and the cathode of the circuit. The conductive sheet can be made of copper material, copper alloy and the like. The conductive sheet extends along the length direction of the connection board 33, so that the contact area between the plug 200 and the conductive sheet can be increased, and the contact reliability can be improved.
Referring to fig. 3, in an embodiment of the present invention, the circuit board 30 is provided with a through hole (not shown) corresponding to the microphone unit 40, the housing 10 is provided with a sound hole 18, and the sound hole 18 is disposed corresponding to the through hole.
In the technical solution of an embodiment of the present invention, the casing 10 is provided with the sound hole 18, and the circuit board 30 is provided with the through hole corresponding to the microphone monomer 40, so that external sound can directly pass through the sound hole 18 and the through hole and then be transmitted to the microphone monomer 40, and act on the diaphragm of the microphone monomer 40, thereby improving the quality of sound acquired by the microphone monomer 40. The sound hole 18 of the housing 10 may be provided in the first housing 11 or the second housing 13, as long as the sound hole 18 corresponds to the position of the microphone unit 40, and is not limited herein.
Referring to fig. 3, in an embodiment of the present invention, the microphone module 100 further includes a dust-proof net 60, and the dust-proof net 60 is fixed with the housing 10 and covers the sound hole 18.
In the technical solution of an embodiment of the present invention, the dust-proof net 60 is arranged to effectively prevent external dust from entering the accommodating cavity 15, so as to ensure a use environment of the microphone unit 40. The material of the dust screen 60 can be a metal material, so that the texture of the dust screen 60 can be improved, and the service life of the dust screen 60 can be prolonged.
Referring to fig. 3, in an embodiment of the present invention, the microphone module 100 further includes a sealing member 50, the sealing member 50 is sandwiched between the circuit board 30 and the housing 10, and the sealing member 50 is further provided with a avoiding hole corresponding to the sound hole 18.
In the technical solution of an embodiment of the present invention, the sealing element 50 is disposed between the circuit board 30 and the inner wall surface of the casing 10, and the sealing element 50 can effectively prevent water in the environment from affecting the circuit board 30, thereby improving the waterproof performance of the microphone module 100. The number of the sealing member 50 may be one, or a plurality thereof may be provided according to actual requirements. The material of the sealing member 50 may be rubber, silica gel, or the like. The seal 50 may be secured by adhesive. The side of sealing member 50 is equipped with draw-in groove (not marked), and the inner wall of second shell 13 is equipped with fixed column (not marked), and draw-in groove and fixed column cooperation can further fixed sealing member 50.
In the technical solution of an embodiment of the present invention, the microphone module 100 further includes foam (not labeled), and the foam is attached to the surface of the casing 10 where the sound hole 18 is formed, so as to reduce vibration of the microphone module 100 during driving, further reduce noise interference generated by vibration of the microphone module 100, and improve sound quality of the microphone module 100.
The present invention further provides a terminal device, which includes the microphone module 100, and the specific structure of the microphone module 100 refers to the above embodiments, and since the terminal device adopts all the technical solutions of all the above embodiments, the terminal device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The terminal device in the embodiment of the present invention may be a vehicle-mounted microphone, or may be another terminal device.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A microphone module, comprising:
the shell is internally provided with an accommodating cavity, and the shell is also provided with a plug port communicated with the accommodating cavity;
the microphone single body is arranged in the accommodating cavity; and
the circuit board is arranged in the accommodating cavity and electrically connected with the microphone monomer, and a wiring end is further arranged on the circuit board and faces the plug interface and is used for being connected with an external circuit.
2. The microphone module as defined in claim 1 wherein the receiving cavity comprises a mounting space and an extension space connected, the socket communicating with the extension space;
the circuit board comprises a main board body and a connecting board, the main board body is arranged in the installation space, the microphone monomers are fixed on the surface of the main board body, the connecting board is convexly arranged on the side edge of the main board body and faces the extending space, and the wiring end is arranged on the connecting board.
3. The microphone module as defined in claim 2 wherein the terminals are two spaced apart conductive strips embedded in the connecting plate.
4. The microphone module as claimed in claim 3, wherein the connecting plate has a length direction and a width direction, the conductive strips extend along the length direction of the connecting plate, and two conductive strips are spaced apart along the width direction of the connecting plate.
5. The microphone module as defined in claim 2 wherein the housing comprises a first shell and a second shell, the first shell comprising a first main body portion and a first connecting portion, the first connecting portion being disposed convexly at a side of the first main body portion; the second shell comprises a second main body part and a second connecting part, and the second connecting part is convexly arranged on the side edge of the second main body part;
the first shell is connected with the second shell, the first main body part and the second main body part enclose to form the installation space, and the first connecting part and the second connecting part enclose to form the extension space and the interface.
6. The microphone module as claimed in claim 5, wherein the first connecting portion or the second connecting portion further has a limiting hole, and a central axis of the limiting hole forms an included angle with a central axis of the socket.
7. The microphone module as claimed in any one of claims 1 to 6, wherein the circuit board is provided with a through hole corresponding to the microphone unit, and the housing is provided with a sound hole corresponding to the through hole.
8. The microphone module as defined by claim 7 wherein the microphone module further comprises a dust screen secured to the housing and covering the sound aperture.
9. The microphone module as defined in claim 7 further comprising a sealing member interposed between the circuit board and the housing, the sealing member further having a relief hole corresponding to the sound hole.
10. A terminal device, characterized in that it comprises a microphone module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346225.0U CN215871769U (en) | 2021-09-27 | 2021-09-27 | Microphone module and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346225.0U CN215871769U (en) | 2021-09-27 | 2021-09-27 | Microphone module and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215871769U true CN215871769U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122346225.0U Active CN215871769U (en) | 2021-09-27 | 2021-09-27 | Microphone module and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215871769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114554376A (en) * | 2022-03-28 | 2022-05-27 | 青岛歌尔微电子研究院有限公司 | Microphone and electronic equipment |
-
2021
- 2021-09-27 CN CN202122346225.0U patent/CN215871769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114554376A (en) * | 2022-03-28 | 2022-05-27 | 青岛歌尔微电子研究院有限公司 | Microphone and electronic equipment |
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