CN209314055U - Microphone device and electronic equipment - Google Patents
Microphone device and electronic equipment Download PDFInfo
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- CN209314055U CN209314055U CN201920355506.2U CN201920355506U CN209314055U CN 209314055 U CN209314055 U CN 209314055U CN 201920355506 U CN201920355506 U CN 201920355506U CN 209314055 U CN209314055 U CN 209314055U
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- shell
- microphone device
- installation position
- vibrating diaphragm
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Abstract
The utility model discloses a kind of microphone device and electronic equipment, wherein microphone device includes vibrational system, magnetic circuit system, shell and reinforcement structure, and shell is provided with the installation position for sealing ring installation for accommodating fixed vibrational system and magnetic circuit system on shell；Reinforcement structure is set on shell the position for corresponding to installation position.The utility model microphone device is able to ascend the intensity of shell, reduces the deflection of shell, to guarantee the waterproof effect of microphone device, so that the acoustical behavior of product is guaranteed.
Description
Technical field
The utility model relates to technical field of acoustics, in particular to a kind of microphone device and electronic equipment.
Background technique
In the microphone device monolithic design of depth waterproof, the scheme of sealing ring is generallyd use to realize microphone device monomer
The waterproof of 30m/50m between complete machine, such scheme are easy to cause complete machine to generate biggish extruding to microphone device monomer shell
Power will lead to shell deformation, the final performance and waterproof effect for influencing product.
Above content is only used for the technical solution that auxiliary understands utility model, does not represent and recognizes that above content is existing skill
Art.
Utility model content
The main purpose of the utility model is to propose a kind of microphone device, it is intended to solve technical problem set forth above.
To achieve the above object, the utility model proposes microphone device, including vibrational system and magnetic circuit system, wherein
Further include:
Shell, the shell are provided on the shell for close for accommodating the fixed vibrational system and magnetic circuit system
The installation position of seal installation；And
Reinforcement structure corresponds to the position of the installation position on the shell.
Optionally, the position that the installation position is corresponded on the shell is equipped with caulking groove, and the reinforcement structure is installed on described
In caulking groove.
Optionally, the magnetic circuit system includes centring magnet and the side magnet around centring magnet setting, the side
Magnet is equipped with side magnetic conductive board；
The side magnetic conductive board is equipped with flange close to the side of the installation position, and the flange constitutes the reinforcement structure,
The flange extends to the position that the installation position is corresponded in the shell in the short transverse of the shell.
Optionally, the extended height of the flange is greater than or equal to the centre-height of the installation position.
Optionally, the side magnetic conductive board is ring structure, week edge setting of the flange around the side magnetic conductive board.
Optionally, the flange is moulded in the side wall of the shell.
Optionally, the installation position is arranged on the housing close to the position of the side magnetic conductive board.
Optionally, the reinforcement structure is annular steel disc, and the annular steel disc is mounted in the caulking groove.
Optionally, the caulking groove is opened in the outside wall surface of the shell, and the caulking groove forms the installation position, the ring
Shape steel disc is set on the wall surface of the caulking groove.
Optionally, the caulking groove is provided on the medial surface of the shell.
Optionally, the shell is rectangular configuration, and the reinforcement structure is arranged in a ring, and the shape phase with the shell
Adaptation.
Optionally, the vibrational system includes the vibrating diaphragm and voice coil to link together, and the voice coil is described by being fixed on
Centring disk on shell connects external circuit.
Optionally, the shell is set as rectangular configuration, and there are two the centring disk settings, two centring disks point
Not She Yu the shell long side, alternatively, two centring disks are respectively arranged on the short side of the shell；
The centring disk includes interconnecting piece and supporting cantilever, the interconnecting piece along the voice coil circumferentially extending, it is described
Interconnecting piece is connected to the voice coil, and one end of the supporting cantilever is connect with the interconnecting piece, and the other end is connected to the shell,
And the supporting cantilever is at least partly arranged with the interconnecting piece parallel.
Optionally, the vibrating diaphragm is monolayer thermoplastic's polyester elastomer film；
Alternatively, the vibrating diaphragm is the composite membrane of at least two layers of thermoplastic polyester elastomer；
The vibrating diaphragm include vibrating diaphragm ontology and be arranged in the vibrating diaphragm ontology intermediate position reinforcement part；The reinforcement
Portion is incorporated in the side close to the voice coil of the vibrating diaphragm ontology, and the voice coil is connected and fixed with the reinforcement part；Described
The periphery of reinforcement part, the vibrating diaphragm ontology are additionally provided with the ring portion being recessed to the direction close to the voice coil.
The utility model also proposes a kind of electronic equipment, including casting of electronic device, sealing ring and is contained in the electronics
Microphone device in apparatus casing, wherein microphone device includes:
Shell, the shell are provided on the shell for close for accommodating the fixed vibrational system and magnetic circuit system
The installation position of seal installation；And
Reinforcement structure, corresponds to the position of the installation position on the shell, and the sealing ring is placed in the electronics and sets
Between standby shell and the shell.
The utility model microphone device passes through the installation position being provided on the shell for sealing ring installation, and by shell
Reinforcement structure is arranged in the position of upper corresponding installation position, is able to ascend the intensity of shell, is then mounted on microphone device in sealing ring
On installation position, and when microphone device is mounted in the casting of electronic device of electronic equipment, reduces shell and correspond near installation position
Deflection, can guarantee the acoustical behavior of product, and since shell is unlikely to deform, can preferably guarantee sealing ring and complete machine
Casting of electronic device between magnitude of interference, to guarantee waterproof effect.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model microphone device；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the decomposition texture schematic diagram of microphone device in Fig. 1；
Fig. 4 is the schematic diagram of internal structure of the another embodiment of the utility model microphone device.
Drawing reference numeral explanation:
| Label | Title | Label | Title | Label | Title |
| 100 | Microphone device | 2 | Magnetic circuit system | 31 | Installation position |
| 1 | Vibrational system | 21 | Centring magnet | 32 | Caulking groove |
| 11 | Voice coil | 22 | Side magnet | 4 | Reinforcement structure |
| 12 | Centring disk | 23 | Side magnetic conductive board | 200 | Sealing ring |
| 13 | Vibrating diaphragm | 231 | Flange | 300 | Casting of electronic device |
| 121 | Interconnecting piece | 24 | Center magnetic conductive board | ||
| 122 | Supporting cantilever | 3 | Shell |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.In addition, the meaning of the "and/or" occurred in full text is, and including three schemes arranged side by side, by taking " A and/or B " as an example,
The scheme met simultaneously including A scheme or B scheme or A and B.In addition, the technical solution between each embodiment can be mutual
In conjunction with, but must be based on can be realized by those of ordinary skill in the art, when mutual lance occurs in the combination of technical solution
Shield or cannot achieve when, will be understood that the combination of this technical solution is not present, also not in the protection scope of the requires of the utility model
Within.
The utility model proposes a kind of microphone devices.
In the utility model embodiment, as shown in Figures 1 and 2, which includes vibrational system 1 and magnetic circuit
System 2, further includes shell 3 and reinforcement structure 4, and shell 3 is set on shell 3 for accommodating fixed vibrational system 1 and magnetic circuit system 2
It is equipped with the installation position 31 installed for sealing ring 200；Reinforcement structure 4 is set on shell 3 position for corresponding to installation position 31.
In the present embodiment, magnetic circuit system 2 generally includes conductive magnetic yoke and the centring magnet for being fixed on conductive magnetic yoke center
21 and around the side magnet 22 that centring magnet 21 is arranged, the centre of centring magnet 21 and side magnet 22 is formed with magnetic gap, shakes
Dynamic system 1 generally includes vibrating diaphragm and voice coil 11, and voice coil 11 is hung in magnetic gap, is formed by energized coils 11 in permanent magnet
It is vibrated in magnetic field by the effect of Ampere force, voice coil 11 drives diaphragm oscillations sounding.The magnetic circuit system 2 can for single magnet magnetic circuit,
Double magnet magnetic circuits or more magnet magnetic circuits, specifically without limitation.
The shape of shell 3 can be set to rectangle or circle, according to specific use environment and can require to be designed.It can
With understanding, sealing ring 200 is ring type seal 200, usually using O-ring seal 200 (such as O-ring circle).Installation position 31
It can be set on the lateral wall of shell 3, by sealing ring 200 being arranged on the installation position 31 of shell 3, can be realized sounding
Depth waterproof between 100 monomer of device and complete machine.Installation position 31 can be only a position on shell 3, be also possible to outside
The slot opened up on the wall surface of shell 3, i.e. sealing ring 200 can be directly set in the outside wall surface of shell 3, be also possible to embedded in slot
It is interior.Reinforcement structure 4 can be set in installation position 31, also can be set on the shell 3 of neighbouring installation position 31, reinforcement structure 4
Can be for one or multiple, the intensity for being able to ascend shell 3 by the way that reinforcement structure 4 is arranged on shell 3.
The utility model microphone device 100 by be provided on shell 3 for sealing ring 200 install installation position 31, and
Reinforcement structure 4 is arranged in position by corresponding to installation position 31 on shell 3, then is mounted on microphone device 100 in sealing ring 200
On installation position 31, and when microphone device 100 is mounted in the casting of electronic device 300 of electronic equipment, it is corresponding to reduce shell 3
Deflection near installation position 31 can guarantee the acoustical behavior of product, and since shell 3 is unlikely to deform, can preferably protect
The magnitude of interference between sealing ring 200 and the casting of electronic device 300 of complete machine is demonstrate,proved, to guarantee waterproof effect.
Further, the position that installation position 31 is corresponded on shell 3 is equipped with caulking groove 32, and reinforcement structure 4 is installed in caulking groove 32.
In the present embodiment, by the way that caulking groove 32 is arranged on shell 3, reinforcement structure 4 can be directly embedded in caulking groove 32,
So that reinforcement structure 4 is easier for installation and firm.Certainly, in order to enable the stability of reinforcement structure 4 is more preferable, reinforce knot
Structure 4 can be directly injection-moulded in caulking groove 32 or is bonded in caulking groove 32 by glue.In other embodiments, reinforcement structure 4
It is also possible to directly be bonded on shell 3.
Further, please with reference to Fig. 3, magnetic circuit system 2 includes centring magnet 21 and is arranged around centring magnet 21
Side magnet 22, the magnetic conductive board 23 when being equipped on magnet 22；
Side magnetic conductive board 23 is equipped with flange 231 close to the side of installation position 31, and flange 231 constitutes reinforcement structure 4, flange
231 extend to the position that installation position 31 is corresponded in shell 3 in the short transverse of shell 3.
In the present embodiment, under normal circumstances, center magnetic conductive board 24,24 He of center magnetic conductive board are provided on centring magnet 21
Side magnetic conductive board 23 can directly can also be bonded on centring magnet 21 and side magnet 22 by being moulded on shell 3.By
Flange 231 is set on side magnetic conductive board 23, so that flange 231 extends to corresponding installation on shell 3 in the short transverse of shell 3
The position of position 31, then flange 231 just can play the role of reinforcing shell 3, so that sealing ring 200 is mounted on installation position 31 outside
Shell 3 will not generate moderate finite deformation at corresponding installation position 31, so as to preferably guarantee sealing ring 200 and complete machine electronic equipment shell
Magnitude of interference between body 300, and then guarantee waterproof effect.Flange 231 can erect in the short transverse of casting of electronic device 300
It is straight to extend, it is also possible to the angled extension in the short transverse of casting of electronic device 300, need to only extend generally direction is electronics
The short transverse of apparatus casing 300.The extended height of flange 231 can extend near 31 minimum point of installation position,
It can be and extend near the highest point of installation position 31, certainly, the extended height of flange 231 is also possible to extend to installation position
31 highest point is between minimum point, and flange 231 can play the role of reinforcing 3 intensity of shell at this time, can be to a certain degree
The upper deformation for mitigating the shell 3 near installation position 31, and then guarantee waterproof effect.
Further, Fig. 1 and Fig. 2 is please referred to, the center that the extended height of flange 231 is greater than or equal to installation position 31 is high
Degree.In this way, the intensity needed for being able to ascend shell 3 of flange 231, while reducing 3 deflection of shell, so that flange 231 prolongs
It is more reasonable to stretch height.
Further, please with reference to Fig. 3, side magnetic conductive board 23 is ring structure, and flange 231 surrounds the week of side magnetic conductive board 23
Along setting.
In the present embodiment, side magnetic conductive board 23 is ring structure, so that flange 231 is also in around 23 weeks edges of side magnetic conductive board
Annular setting, then make flange 231 in the circumferential direction of setting shell 3, the circumferential direction of shell 3 can reinforce intensity, thus right
The uniform magnitude of interference that can guarantee between sealing ring 200 and complete machine casing at installation position 31 is answered, so that the entirety of shell 3 has one
The reinforcement of cause prevents the deformation effect of shell 3 more preferable.
Further, flange 231 is moulded in the side wall of shell 3.By the side wall that flange 231 is moulded in shell 3
On, so that structure is more stable, and installation can be simplified.
In the embodiment for combining the feature with flange 231, further, the setting of installation position 31 is close on shell 3
The position of side magnetic conductive board 23.In this way, the length for making flange 231 extend to installation position 31 from side magnetic conductive board 23 is shorter, so that whole
Body structure is more compact and reasonable.
Further, reinforcement structure 4 is annular steel disc, and annular steel disc is mounted in caulking groove 32.
In the present embodiment, annular steel disc can be bonded in caulking groove 32, be also possible to directly be embedded and be mounted on caulking groove 32
It is interior.Annular steel disc is equally able to ascend the intensity of shell 3, and annular steel disc is simple to manufacture, and cost is relatively low.
Further, caulking groove 32 is opened in the outside wall surface of shell 3, and caulking groove 32 forms installation position 31, and annular steel disc is set to
On the wall surface of caulking groove 32.
In the present embodiment, annular steel disc can be mounted on the wall surface of caulking groove 32 by way of stickup.So that embedding
Slot 32 forms the installation position 31, then sealing ring 200 is embedded in caulking groove 32 together with annular steel disc, then does not have to another on shell 3
Slot is opened up outside for installing sealing ring 200, simplifies the mounting structure of shell 3.
In other embodiments, caulking groove 32 is provided on the medial surface of shell 3.In this way, the separately installed reinforcement of caulking groove 32 is tied
Structure 4, so that installing simpler convenience.
Further, as shown in figure 4, shell 3 is rectangular configuration, reinforcement structure 4 is arranged in a ring, and the shape with shell 3
Shape is adapted.
In the present embodiment, when shell 3 is rectangular configuration, degree is drawn high on 200 sets of sealing ring each sides when on shell 3
Not identical, i.e. the diameter of major and minor axis straight flange is bigger, and the diameter of corner (general rounded transition) is smaller, this results in sounding
The stress of straight flange is excessive when device 100 is put into electronic equipment, and the stress at fillet is smaller, then will lead to the deformation of shell 3, shadow
Ring the performance of product.So that reinforcement structure 4 is arranged in a ring, and is adapted with the shape of shell 3, then can guarantee on shell 3
It can play the role of reinforcing intensity in the circumferential direction of corresponding sealing ring 200, so that the deformation at the straight flange of rectangular enclosure 3
It is smaller, it ensure that the magnitude of interference between sealing ring 200 and complete machine casting of electronic device 300, to guarantee that waterproof effect is more preferable.
Further, referring to figure 3. and Fig. 4, vibrational system 1 includes the vibrating diaphragm 13 to link together and voice coil 11 and centering
Branch piece 12, voice coil 11 connect external circuit by the centring disk 12 being fixed on shell 3.Centring disk 12 can increase voice coil
The stability of 11 vibrations.
Specifically, vibrating diaphragm 3 is monolayer thermoplastic's polyester elastomer film；Alternatively, vibrating diaphragm 13 is at least two layers of thermoplastic polyester
The composite membrane of elastomer；Reinforcement part of the vibrating diaphragm 13 including vibrating diaphragm ontology and the intermediate position that vibrating diaphragm ontology is arranged in；Reinforcement part
It is incorporated in the side of the close voice coil 11 of vibrating diaphragm ontology, the voice coil 11 is connected and fixed with the reinforcement part；In the outer of reinforcement part
Week, vibrating diaphragm ontology are additionally provided with the ring portion being recessed to the direction close to voice coil.
In the present embodiment, vibrating diaphragm 13 uses thermoplastic polyester elastomer film, and vibrating diaphragm ontology is made to be equipped with the folding being recessed
Ring portion then enables to vibrating diaphragm 13 to have preferable resilience, when facing specific hydraulic pressure, still has preferable restore
Power, vibrating diaphragm 13 are unlikely to deform in itself.And if convex ring is arranged on vibrating diaphragm ontology, or use other such as engineerings
For the material of plastics etc as vibrating diaphragm, resilience is relatively poor, is not easy to restore.
Further, shell 3 is set as rectangular configuration, and there are two the settings of centring disk 12, and two centring disks 12 are set respectively
In the long side of shell 3, alternatively, two centring disks 12 are respectively arranged on the short side of shell 3；In this way, can both guarantee voice coil 11
Stability of vibration, and can simplify 100 structure of microphone device, simplify assembling process, reduce cost.
In addition, the centring disk 12 includes interconnecting piece 121 and supporting cantilever 122, the interconnecting piece 121 is along the sound
The circumferentially extending of circle 11, the interconnecting piece 121 are connected to the voice coil 11, one end of the supporting cantilever 122 and the connection
Portion 121 connects, and the other end is connected to the shell 3, and the supporting cantilever 122 is at least partly parallel with the interconnecting piece 121
Setting.
Specifically, the supporting cantilever 122 is set to side of the interconnecting piece 121 far from the voice coil 11.In this way, can be big
The big quality for reducing centring disk 12, so as to reduce the influence that centring disk 12 vibrates voice coil 11, so that sounding can be improved
The acoustical behavior of device 100.
Further, multiple centring disks 12 are uniformly arranged.In this way, the uniform force of voice coil 11 can be improved.
The utility model also proposes a kind of electronic equipment, which includes casting of electronic device 300, sealing ring 200
With the microphone device 100 being contained in casting of electronic device 300, the specific structure of the microphone device 100 referring to above-described embodiment,
Wherein, sealing ring 200 is placed between the casting of electronic device 300 of complete machine and the shell 3 of microphone device 100.
In the present embodiment, it by the way that reinforcement structure 4 is arranged in the position for corresponding to installation position 31 on shell 3, is able to ascend
The intensity of shell 3, reduces the deflection of shell 3, and can preferably guarantee between sealing ring 200 and casting of electronic device 300
Magnitude of interference so that the waterproof effect of entire electronic equipment is more preferable.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (15)
1. a kind of microphone device, including vibrational system and magnetic circuit system characterized by comprising
Shell, the shell are provided on the shell for sealing ring for accommodating the fixed vibrational system and magnetic circuit system
The installation position of installation；And
Reinforcement structure corresponds to the position of the installation position on the shell.
2. microphone device as described in claim 1, which is characterized in that the position for corresponding to the installation position on the shell is equipped with
Caulking groove, the reinforcement structure are installed in the caulking groove.
3. microphone device as described in claim 1, which is characterized in that
The magnetic circuit system include centring magnet and around the centring magnet setting side magnet, it is described while on magnet be equipped with while
Magnetic conductive board；
The side magnetic conductive board is equipped with flange close to the side of the installation position, and the flange constitutes the reinforcement structure, described
Flange extends to the position that the installation position is corresponded in the shell in the short transverse of the shell.
4. microphone device as claimed in claim 3, which is characterized in that the extended height of the flange is greater than or equal to the peace
Fill the centre-height of position.
5. microphone device as claimed in claim 3, which is characterized in that the side magnetic conductive board is ring structure, and the flange encloses
Week around the side magnetic conductive board is along setting.
6. microphone device as claimed in claim 3, which is characterized in that the flange is moulded in the side wall of the shell.
7. the microphone device as described in any one of claim 3 to 6, which is characterized in that the installation position is arranged described
Close to the position of the side magnetic conductive board on shell.
8. microphone device as claimed in claim 2, which is characterized in that the reinforcement structure is annular steel disc, the ring steel
Piece is mounted in the caulking groove.
9. microphone device as claimed in claim 8, which is characterized in that the caulking groove is opened in the outside wall surface of the shell,
The caulking groove forms the installation position, and the annular steel disc is set on the wall surface of the caulking groove.
10. microphone device as claimed in claim 8, which is characterized in that the caulking groove is provided on the medial surface of the shell.
11. microphone device as described in claim 1, which is characterized in that the shell is rectangular configuration, and the reinforcement structure is in
Annular setting, and be adapted with the shape of the shell.
12. microphone device as described in claim 1, which is characterized in that the vibrational system includes the vibrating diaphragm to link together
And voice coil, the voice coil connect external circuit by fixed centring disk on the housing.
13. microphone device as claimed in claim 12, which is characterized in that the shell is set as rectangular configuration, the centering
There are two branch piece settings, and two centring disks are respectively arranged on the long side of the shell, alternatively, the two centring disk difference
Set on the short side of the shell；
The centring disk includes interconnecting piece and supporting cantilever, circumferentially extending of the interconnecting piece along the voice coil, the connection
Portion is connected to the voice coil, and one end of the supporting cantilever is connect with the interconnecting piece, and the other end is connected to the shell, and institute
Supporting cantilever is stated at least partly to be arranged parallel with the interconnecting piece.
14. microphone device as claimed in claim 12, which is characterized in that the vibrating diaphragm is monolayer thermoplastic's polyester elastomer
Film；
Alternatively, the vibrating diaphragm is the composite membrane of at least two layers of thermoplastic polyester elastomer；
The vibrating diaphragm include vibrating diaphragm ontology and be arranged in the vibrating diaphragm ontology intermediate position reinforcement part；The reinforcement part knot
It closes in the side close to the voice coil of the vibrating diaphragm ontology, the voice coil is connected and fixed with the reinforcement part；In the reinforcement
The periphery in portion, the vibrating diaphragm ontology are additionally provided with the ring portion being recessed to the direction close to the voice coil.
15. a kind of electronic equipment, including casting of electronic device, sealing ring and the acoustical generator being contained in the casting of electronic device
Part, which is characterized in that the microphone device is microphone device described in any one of claim 1 to 14, the sealing ring
It is placed between the casting of electronic device and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355506.2U CN209314055U (en) | 2019-03-19 | 2019-03-19 | Microphone device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355506.2U CN209314055U (en) | 2019-03-19 | 2019-03-19 | Microphone device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209314055U true CN209314055U (en) | 2019-08-27 |
Family
ID=67682174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920355506.2U Active CN209314055U (en) | 2019-03-19 | 2019-03-19 | Microphone device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209314055U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110636396A (en) * | 2019-09-12 | 2019-12-31 | 歌尔科技有限公司 | Sound production device and electronic product |
| CN112073847A (en) * | 2020-08-27 | 2020-12-11 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
-
2019
- 2019-03-19 CN CN201920355506.2U patent/CN209314055U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110636396A (en) * | 2019-09-12 | 2019-12-31 | 歌尔科技有限公司 | Sound production device and electronic product |
| CN112073847A (en) * | 2020-08-27 | 2020-12-11 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
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