CN207603917U - The sealing structure and electronic equipment of microphone - Google Patents
The sealing structure and electronic equipment of microphone Download PDFInfo
- Publication number
- CN207603917U CN207603917U CN201721809051.4U CN201721809051U CN207603917U CN 207603917 U CN207603917 U CN 207603917U CN 201721809051 U CN201721809051 U CN 201721809051U CN 207603917 U CN207603917 U CN 207603917U
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- microphone
- sealing ring
- sealing
- housing
- pcb board
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Abstract
The sealing structure and electronic equipment of the utility model microphone are related to acoustic energy switch technology field, and its purpose is to provide a kind of sealing structure and electronic equipment of the microphone of good seal performance.The sealing structure of the utility model microphone includes housing, and microphone monomer and pcb board are provided in the housing；Voice entry is offered on the housing, the pcb board offers through-hole；The voice entry, through-hole and microphone monomer into sound mouth be sequentially connected it is logical form sound channel, be provided with sealing ring between the housing and the pcb board；Boss structure is provided on the housing one side opposite with the pcb board, sets fluted on the boss structure, the sealing ring is arranged in the groove；The sound channel forms acoustic seal by the sealing ring.
Description
Technical field
The utility model is related to acoustic energy switch technology fields, are set more particularly to the sealing structure and electronics of a kind of microphone
It is standby.
Background technology
The MEMS microphones of the prior art are when being applied on mobile phone, tablet computer etc. end product, usually in MEMS
Microphone into foam is pasted on sound mouth, MEMS microphone is connected into sound mouth and external end product shell sound inlet by foam
It is logical, and sealing function is played, it prevents from sound being caused to leak because of sealing bad herein.Usually to the seal request wheat of microphone
Full frequency band attenuation 20dB when gram frequency response of the wind when blocking acoustic aperture be not than blocking acoustic aperture.
Usual Bottom types MEMS microphone sealing is using materials such as foam, EVA, using " upper cover plate 10- foams（EVA）
The stack manner of 20- circuit board 30- microphones monomer 40 " squeezes foam by upper cover plate and circuit board, foam is made to reach certain
Decrement after play sealing effect（As shown in Figure 1）.But it due to limitations such as the material of upper cover plate, thickness, is typically applied to
Insufficient pressure on foam is so that foam can reach larger decrement so that optimal compression state, wheat is not achieved in foam
Gram wind attenuation does not also reach requirement, particularly low-frequency range (<200Hz), attenuation usually only has 3 ~ 5dB.
Utility model content
Based on this, the technical problem to be solved by the present invention is to provide a kind of sealing knots of the microphone of good seal performance
Structure and electronic equipment.
A kind of sealing structure of microphone including housing, is provided with microphone monomer and pcb board in the housing；It is described
Voice entry is offered on housing, the pcb board offers through-hole；The voice entry, through-hole and microphone monomer into sound
Mouth, which is sequentially connected to lead to, forms sound channel, which is characterized in that is provided with sealing ring between the housing and the pcb board；It is described
Boss structure is provided on the housing one side opposite with the pcb board, fluted, the sealing is set on the boss structure
Circle is arranged in the groove；The sound channel forms acoustic seal by the sealing ring.
In one of the embodiments, the boss structure be annular convex platform, the annular convex platform end opposite with pcb board
Annular groove is provided on face, the sealing ring is arranged in the annular groove.
The sealing ring is interference fitted with the groove in one of the embodiments,.
The sealing ring is caught in the groove in one of the embodiments, and with the groove bonding.
The boss structure is integrally formed with the housing in one of the embodiments,.
The boss structure is provided with several in one of the embodiments, and concentric sheathed setting, the sealing ring
It is correspondingly provided with several.
A kind of electronic equipment includes the sealing structure of microphone described in any one of the above embodiments.
The sealing structure of above-mentioned microphone designs boss structure with groove on housing, and coordinates and be placed on the close of groove
Seal is sealed by being realized with the interference fit of circuit board, and since sealing ring is made of rubber material, decrement is smaller, right
The intensity requirement of upper cover plate is relatively low；Simultaneously because the rubber material of sealing ring has sound transmission the characteristic of abirritation, it is low
Frequency sealing effect is preferable compared with foam, can reach the requirement of full frequency band attenuation 20dB.
Description of the drawings
Fig. 1 is the structure diagram of the sealing structure of conventional microphone；
Fig. 2 is the structure diagram of the sealing structure of the utility model microphone；
Reference sign：
Housing 100；Voice entry 110；
Pcb board 200；Through-hole 210；
Microphone monomer 300；Into sound mouth 310；
Boss structure 400；Sealing ring 410.
Specific embodiment
The specific embodiment of the utility model is described in detail below with reference to Figure of description, but this practicality
The novel multitude of different ways that can be defined by the claims and cover is implemented.
With reference to Fig. 2, the sealing structure of the microphone in one embodiment of the utility model, including housing 100, housing
Microphone monomer 300 and pcb board 200 are provided in 100.On housing 100 voice entry is offered corresponding to microphone monomer 300
110.Pcb board 200 is connect with microphone, and offers through-hole 210.As shown in Fig. 2, it is followed successively by housing 100, PCB from the outside to the core
Plate 200, microphone monomer 300.Being sequentially connected into sound mouth 310 on voice entry 110, through-hole 210 and microphone monomer 300 is logical
Form sound channel.Wherein, sealing ring 410 is provided between housing 100 and pcb board 200.Housing 100 is opposite with pcb board 200
One side on be provided with boss structure 400, set fluted on boss structure 400, sealing ring 410 is arranged in groove.Sound
Sound channel forms acoustic seal by sealing ring 410.So-called acoustic seal refers to that external sound is transferred to by sound channel
Microphone monomer 300, and it is not leak into the position other than sound channel.Acoustic seal effect is better, then microphone monomer 300 connects
The sound received is more clear, and speech quality is better.
The sealing structure of above-mentioned microphone designs boss structure 400 with groove on housing 100, and coordinates and be placed on
The sealing ring 410 of groove is sealed by being realized with the interference fit of circuit board 200, due to the rubber material system of sealing ring 410
Into decrement is smaller, relatively low to the intensity requirement of upper cover plate 200；Simultaneously because 410 rubber material of sealing ring is to sound transmission
Characteristic with abirritation, low frequency sealing effect is preferable compared with foam, can reach the requirement of full frequency band attenuation 20dB.It is above-mentioned close
The sealing of 200 die bed MEMS microphones of plate that seal structure is commonly used in intelligent sound box uses relatively broad, above-mentioned sealing
Structure improves microphone sealing effect, improves AEC effects.
Specifically, boss structure 400 is annular convex platform, and annular convex platform is provided with annular on the end face opposite with pcb board 200
Groove, sealing ring 410 are O-ring seal, are arranged in annular groove.Specifically, sealing ring 410 is interference fitted with groove, close
Seal 410 is caught in groove.The diameter of sealing ring 410 is related with the size of voice entry 110, according to the size of voice entry 110
Rationally setting.Preferably, sealing ring 410 can be fixed with groove bonding, can further improve sealing effect.
Specifically, boss structure 400 is integrally formed with housing 100, and housing 100 is simple in structure, at low cost.Other real
It applies in example, boss structure 400 can also be fixed with 100 split of housing by modes such as bondings.
Further, in order to improve the leakproofness of sound channel, multiple boss structures 400 can be set.Multiple convex annulars
Concentric sheathed setting is played, sealing ring 410 is correspondingly provided with several.Multi-layer sealed 410 setting of circle, substantially increases housing
Sealing effect between 100 and pcb board 200.Preferably, the through-hole 210 on pcb board 200 is arranged on the interposition of pcb board 200
Put, the center of sealing ring 410 is arranged at through-hole 210, can make 410 uniform stressed of sealing ring, ensure housing 100 with
Uniform leakproofness between pcb board 200.
The utility model further relates to a kind of electronic equipment, has the sealing structure of above-mentioned microphone.Above-mentioned microphone
Sealing structure can be speaker, can also be a kind of portable device, the portable device can be, but not limited to, mobile phone,
Laptop, tablet computer, smartwatch, intercom or ear phone line control device etc..
The sealing structure and speaker of the utility model microphone design boss structure 400 with groove on housing 100,
And coordinate the sealing ring 410 for being placed on groove, it is sealed by being realized with the interference fit of circuit board 200, since sealing ring 410 is used
Rubber material is made, and decrement is smaller, relatively low to the intensity requirement of upper cover plate 200；Simultaneously because the material of sealing ring 410 is special
Property, low frequency sealing effect is preferable compared with foam, and full frequency band when can reach the frequency response when blocking acoustic aperture than not blocking acoustic aperture declines
Subtract the requirement of 20dB, improve microphone sealing effect, improve AEC effects.
Above example only expresses the several embodiments of the utility model, and description is more specific and detailed, but simultaneously
Cannot the limitation to the utility model patent range therefore be interpreted as.It should be pointed out that the ordinary skill for this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection domain of utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of sealing structure of microphone including housing, is provided with microphone monomer and pcb board in the housing；The shell
Voice entry is offered on body, the pcb board offers through-hole；The voice entry, through-hole and microphone monomer into sound mouth
It is sequentially connected to lead to and forms sound channel, which is characterized in that be provided with sealing ring between the housing and the pcb board；The shell
Boss structure is provided on the body one side opposite with the pcb board, fluted, the sealing ring is set on the boss structure
It is arranged in the groove；The sound channel forms acoustic seal by the sealing ring.
2. the sealing structure of microphone according to claim 1, which is characterized in that the boss structure is annular convex platform,
Annular groove is provided on the annular convex platform end face opposite with pcb board, the sealing ring is arranged in the annular groove.
3. the sealing structure of microphone according to claim 1, which is characterized in that the sealing ring and the groove interference
Cooperation.
4. the sealing structure of microphone according to claim 3, which is characterized in that the sealing ring is caught in the groove,
And with the groove bonding.
5. the sealing structure of microphone according to claim 1, which is characterized in that the boss structure and the housing one
It is body formed.
6. the sealing structure of microphone according to claim 2, which is characterized in that the boss structure is provided with several
It is a, and concentric sheathed setting, the sealing ring are correspondingly provided with several.
7. a kind of electronic equipment, which is characterized in that include the sealing structure of such as claim 1-6 any one of them microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809051.4U CN207603917U (en) | 2017-12-21 | 2017-12-21 | The sealing structure and electronic equipment of microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721809051.4U CN207603917U (en) | 2017-12-21 | 2017-12-21 | The sealing structure and electronic equipment of microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207603917U true CN207603917U (en) | 2018-07-10 |
Family
ID=62767538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721809051.4U Active CN207603917U (en) | 2017-12-21 | 2017-12-21 | The sealing structure and electronic equipment of microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207603917U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200681A (en) * | 2018-11-16 | 2020-05-26 | 北京小米移动软件有限公司 | Waterproof sealing structure and terminal equipment |
| CN112205001A (en) * | 2019-09-27 | 2021-01-08 | 深圳市大疆创新科技有限公司 | Sound collection method, sound collection structure and unmanned aerial vehicle |
| CN115002259A (en) * | 2022-07-18 | 2022-09-02 | 荣耀终端有限公司 | Electronic device |
-
2017
- 2017-12-21 CN CN201721809051.4U patent/CN207603917U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200681A (en) * | 2018-11-16 | 2020-05-26 | 北京小米移动软件有限公司 | Waterproof sealing structure and terminal equipment |
| CN112205001A (en) * | 2019-09-27 | 2021-01-08 | 深圳市大疆创新科技有限公司 | Sound collection method, sound collection structure and unmanned aerial vehicle |
| CN115002259A (en) * | 2022-07-18 | 2022-09-02 | 荣耀终端有限公司 | Electronic device |
| CN115002259B (en) * | 2022-07-18 | 2023-01-06 | 荣耀终端有限公司 | Electronic device |
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