CN106385644A - Electronic equipment and microphone waterproof structure - Google Patents
Electronic equipment and microphone waterproof structure Download PDFInfo
- Publication number
- CN106385644A CN106385644A CN201610972387.6A CN201610972387A CN106385644A CN 106385644 A CN106385644 A CN 106385644A CN 201610972387 A CN201610972387 A CN 201610972387A CN 106385644 A CN106385644 A CN 106385644A
- Authority
- CN
- China
- Prior art keywords
- mike
- leading note
- note passage
- waterproof construction
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to electronic equipment and a microphone waterproof structure. The microphone waterproof structure comprises a housing and a microphone. The microphone and the housing are correspondingly assembled. The housing is provided with a sound guiding channel which realizes sound transmission to the microphone. A sealing structure is arranged between the microphone and the housing, thereby forming a sealed space which can be communicated with outside only through the sound guiding channel between the microphone and the inner end of the sound guiding channel. After water enters the sound guiding channel, the water remains in the sound guiding channel by means of a surface tension, thereby preventing water entry into the sealed space through the sound guiding channel. According to the microphone waterproof structure, after the water enters the sound guiding channel, the water remains in the sound guiding channel by means of the surface tension, and the sealed space is extruded. On the condition that combination of an external pressure and a water pressure does not exceed a preset pressure, the microphone waterproof structure is a sealed container for water and air except for the sound guiding channel, thereby preventing microphone function failure caused by water entry into the sealed space.
Description
Technical field
The present invention relates to electric terminal equipment, more particularly, it relates to a kind of electronic equipment and mike waterproof construction.
Background technology
In the design of high-level waterproof (as IPX8) electronic product being related to mike waterproof in correlation technique, generally make
Method is to be isolated microphone body and the external world with waterproof ventilated membrane (or waterproof membrane).
Typical profile is as shown in Figure 4 to (wherein eliminating the Air Filter unrelated with IPX8 waterproof), this waterproof construction bag
Include housing 1, mike 2, waterproof ventilated membrane 3, voice guide hole 4, sound chamber 5 before film, sound chamber 6 after film, waterproof membrane 3 can stop water from passing through
Before voice guide hole 4, film, sound chamber 5 enters sound chamber 6 and mike 2 after film, reaches the purpose of waterproof.In addition can also be waterproof ventilated membrane
3 be placed directly against on mike 2 or voice guide hole 4 inner side it is also possible to reach the purpose of waterproof.But these methods are required for using anti-
Water ventilated membrane.The use of waterproof ventilated membrane can change the electroacoustic performance of pickup part, reduces the sensitivity of system, increase thing simultaneously
Material cost.
Content of the invention
The technical problem to be solved in the present invention is, provides a kind of improved electronic equipment and mike waterproof construction.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of mike waterproof construction, including shell
Body and mike；
The assembling corresponding with described housing of described mike, described housing is provided with and allows sound to leading that described mike transmits
Sound passage；
It is provided with sealing structure, with described mike with described leading note passage between described mike and described housing
Form, between end, the confined space being only capable of being in communication with the outside by described leading note passage, allow water after entering leading note passage, rely on table
The effect of face tension force, rests in leading note passage, prevents water from entering into described confined space from described leading note passage.
Preferably, described leading note passage includes a voice guide hole, and described voice guide hole is slim-lined construction.
Preferably, the volume of described leading note passage meets below equation：Wherein：
V1Volume for leading note passage；
PWAtmospheric gas pressure after being immersed in the water for mike and the water column after entrance leading note passage are into described confined space
Pressure；
P0For atmospheric gas pressure；
V is the volume of confined space.
Preferably, described confined space includes connecting the sound chamber between described leading note passage and described mike.
Preferably, the volume in described sound chamber is more than or equal to 0.
Preferably, described leading note passage is coaxial with described sound chamber or arranges in angle with described sound chamber.
Preferably, described leading note passage is in directly to stretch pore structure；Or, described leading note passage is in shoulder hole structure；Or, described lead
Sound passage includes at least two sections through-hole structures connecting.
Preferably, described sealing structure includes covering the sealant between the back side of described mike and described housing.
Preferably, described sealant includes fluid sealant.
The present invention also constructs a kind of electronic equipment, including described mike waterproof construction.
Implement electronic equipment and the mike waterproof construction of the present invention, have the advantages that：The mike of the present invention
Waterproof construction due to capillary effect, can rest in leading note passage, to confined space in water after entering leading note passage
Forming extruding, leading so that removing in the case of the pressure of extraneous pressure and water is less than specified pressure to the pressure of confined space
Outside sound passage, it is an airtight container to water and air, can prevent water from entering into confined space and cause the function of mike to lose
Effect.
Brief description
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the cross-sectional view of the mike waterproof construction in the embodiment of the present invention；
Fig. 2 is that the volume of confined space when mike waterproof construction in Fig. 1 is not immersed in the water and leading note passage is illustrated
Figure；
Fig. 3 is that the change in volume of confined space when mike waterproof construction in Fig. 1 is immersed in the water and leading note passage is shown
It is intended to；
Fig. 4 is mike waterproof construction schematic diagram in background technology.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now comparison accompanying drawing describes in detail
The specific embodiment of the present invention.
As shown in figure 1, the electronic equipment in a preferred embodiment of the invention includes housing 1 and mike 2, mike 2
Assembling corresponding with housing 1, housing 1 is provided with the leading note passage 7 allowing sound to transmit to mike 2.Between mike 2 and housing 1
It is provided with sealing structure 8, to form the confined air being only capable of being in communication with the outside by leading note passage 7 between mike 2 and leading note passage 7
Between A, allow water enter leading note passage 7 after, rely on capillary effect, rest in leading note passage 7, prevent water from leading note lead to
Road 7 enters into confined space A.
This structure setting mode forms mike waterproof construction between housing 1 and mike 2, and sealing structure 8 makes Mike
Fully seal between wind 2 and housing 1, allowing housing 1, mike 2 to be formed can only carry out air exchange by leading note passage 7 with the external world
Confined space A.Water, after entering leading note passage 7, due to capillary effect, can rest in leading note passage 7, to airtight
Space A forms extruding, in the case of the pressure of extraneous pressure and water is less than specified pressure to the pressure of confined space A, makes
Must be an airtight container to water and air in addition to leading note passage 7, can prevent water from entering into confined space A and cause mike 2
Disabler.Electronic equipment can be communication terminal equipment, is alternatively other electronic equipments with mike 2.
Sealing structure 8 includes covering the sealant between the back side of mike 2 and housing 1, makes mike 2 bottom and shell
Completely airtight inside body 1, sealant includes fluid sealant, the back side to mike 2 and with mike 2 back side corresponding housing 1 table
Face coating covers.In other embodiments, the back side shell of mike 2 is alternatively and seals, and sealing structure 8 then only needs in Mike
Carry out between the mating surface of the shell of wind 2 and housing 1 sealing.
In the present embodiment, leading note passage 7 includes a voice guide hole, and the profile of mike 2 is generally little, in order to reduce water
In the flowing of conductive channel, voice guide hole will make the passage of a slim-lined construction, be equivalent to a tubule it is ensured that enter water by
Can be only formed water column in capillary effect, and freely can not trickle along wall.When the structure of mike 2 is larger, can be right
The multiple voice guide hole of setting answered, allows voice guide hole as far as possible thin.
Preferably, voice guide hole is in directly to stretch pore structure, is easy to process.In other embodiments, voice guide hole also can be in shoulder hole
Structure, forms including profile many sector hole connections of different sizes；Voice guide hole is alternatively bending structure, including at least two sections of connection
Through-hole structure connection is formed.
In conjunction with shown in Fig. 2, further, confined space A includes connecting the sound chamber between leading note passage 7 and mike 2
A1, and it is located at the volume being occupied by air inside mike 2.
Leading note passage 7 is coaxially disposed with sound chamber A1, and in other embodiments, leading note passage 7 can be in also angle with sound chamber A1
Setting.In certain embodiments, the volume of sound chamber A1 can be more than 0, due to the miniaturization of mike 2, also can be not provided with sound chamber
A1, then the volume of sound chamber A1 is equal to 0.
The volume of leading note passage 7 is V1, the volume of sound chamber A1 is V2, the volume being occupied by air inside mike 2 is V3,
V3Can by mike 2 specification or Structure Calculation out, V1、V2、V3Section can be represented with Fig. 2.
When not being immersed in the water, confined space A is the same with the air pressure of air in leading note passage 7 with the atmospheric pressure of outside
, it is expressed as P0, in confined space A and leading note passage 7, the volume of gas is：
V=V1+V2+V3(1)
As shown in figure 3, calming the anger and hydraulic pressure P in outside after being immersed in the waterWIn the presence of, a part of water can be pressed into leading note
Passage 7, forms water column it is assumed that the volume that internal pressure and external pressure reach water column after balance is VW.Discounting for environment
The change of temperature, according to the state equation of gas, can obtain following relational expression：
P0V=PW(V-VW) (2)
I.e.
If volume V of water columnWVolume V less than voice guide hole1, water would not enter into sound chamber A1, also would not and Mike
Wind 2 contacts, and it is caused damage.The purpose of waterproof therefore can be reached.
That is by the volume of appropriately designed voice guide hole and sound chamber A1, the volume of leading note passage 7 is made to meet following public
Formula：
Wherein：
V1Volume for leading note passage 7；
PWAtmospheric gas pressure after being immersed in the water for mike 2 and the water column after entrance leading note passage 7 are into confined space A
Pressure；
P0For atmospheric gas pressure；
V be confined space A and leading note passage 7 volume and.
The volume of leading note passage 7 meets this condition and can reach IPX8 classification of waterproof, makes classification of waterproof obtain carrying greatly very much
Rise, reduce cost and design difficulty.
In order to verify, we are achieved with meeting the design of requirements above in a product being required to meet IPX8 requirement
Mike 2 waterproof, the specific requirement of its design is that in 2 meters of deep sea water of immersion, 1 as a child took out afterwards, and function is normal.
From the diameter of a mike 2 be 4.0mm, height is 1.6mm, can according to the volume of its structure estimation 40%
To be occupied by air, sound chamber A1 diameter 2.2mm, height 1.0mm, leading note bore dia 1.2mm, length 4mm.Take P0For sea level
Atmospheric pressure, P0=10.34 meter water columns, PW=P0+ 2=12.34 meter water column.Volume V of voice guide hole can be calculated by these data1
=4.52mm3, cumulative volume V=16.37mm3.These parameters are substituted into formula (3) V can be calculatedW=2.65mm3.
Due to meeting VW<V1Condition, achieve the purpose of waterproof well.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
The foregoing is only embodiments of the invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of mike waterproof construction is it is characterised in that include housing (1) and mike (2)；
The assembling corresponding with described housing (1) of described mike (2), described housing (1) is provided with and allows sound to described mike (2)
The leading note passage (7) of transmission；
It is provided with sealing structure (8), with described mike (2) and described leading note between described mike (2) and described housing (1)
Form, between the inner of passage (7), the confined space (A) being only capable of being in communication with the outside by described leading note passage (7), allow water entering
After leading note passage (7), rely on capillary effect, rest in leading note passage (7), prevent water from described leading note passage (7)
Enter into described confined space (A).
2. mike waterproof construction according to claim 1 is it is characterised in that described leading note passage (7) inclusion one is led
Sound hole, described voice guide hole is slim-lined construction.
3. mike waterproof construction according to claim 1 is it is characterised in that the volume of described leading note passage (7) meets
Below equation：Wherein：
V1Volume for leading note passage (7)；
PWAtmospheric gas pressure after being immersed in the water for mike (2) and the water column after entrance leading note passage (7) are to described confined space
(A) pressure in；
P0For atmospheric gas pressure；
V is the volume of confined space (A).
4. the mike waterproof construction according to any one of claims 1 to 3 is it is characterised in that described confined space (A) wraps
Include sound chamber (A1) between described leading note passage (7) and described mike (2) for the connection.
5. mike waterproof construction according to claim 4 is it is characterised in that the volume in described sound chamber (A1) is more than or equal to
0.
6. mike waterproof construction according to claim 4 is it is characterised in that described leading note passage (7) and described sound chamber
(A1) it is in coaxially or with described sound chamber (A1) that angle is arranged.
7. the mike waterproof construction according to any one of claims 1 to 3 is it is characterised in that described leading note passage (7) is in
Directly stretch pore structure；Or, described leading note passage (7) is in shoulder hole structure；Or, described leading note passage (7) includes at least the two of connection
Section through-hole structure.
8. the mike waterproof construction according to any one of claims 1 to 3 is it is characterised in that described sealing structure (8) is wrapped
Include the sealant covering between the back side of described mike (2) and described housing (1).
9. mike waterproof construction according to claim 8 is it is characterised in that described sealant includes fluid sealant.
10. a kind of electronic equipment is it is characterised in that include the mike waterproof construction described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972387.6A CN106385644A (en) | 2016-10-28 | 2016-10-28 | Electronic equipment and microphone waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972387.6A CN106385644A (en) | 2016-10-28 | 2016-10-28 | Electronic equipment and microphone waterproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106385644A true CN106385644A (en) | 2017-02-08 |
Family
ID=57956836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610972387.6A Pending CN106385644A (en) | 2016-10-28 | 2016-10-28 | Electronic equipment and microphone waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106385644A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369300A (en) * | 2017-06-09 | 2017-11-21 | 广东小天才科技有限公司 | The overboard detection means of a kind of electronic equipment, detection method and electronic equipment |
| CN108508735A (en) * | 2018-05-28 | 2018-09-07 | 广东小天才科技有限公司 | A kind of waterproof construction of microphone system and the smartwatch with the waterproof construction |
| CN109201694A (en) * | 2018-11-08 | 2019-01-15 | 广州立景创新科技有限公司 | A kind of protective device |
| WO2019109715A1 (en) * | 2017-12-08 | 2019-06-13 | 歌尔股份有限公司 | Microphone module |
| US10469941B2 (en) | 2016-08-23 | 2019-11-05 | Apple Inc. | Vented acoustic transducers and related methods and systems |
| CN110958511A (en) * | 2018-09-26 | 2020-04-03 | 北京小米移动软件有限公司 | Repair processing method and repair processing system based on air tightness of audio channel |
| CN112087681A (en) * | 2019-06-12 | 2020-12-15 | 杭州海康威视数字技术股份有限公司 | Pickup device and cavity wall component for same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160030246A1 (en) * | 2014-07-31 | 2016-02-04 | 3M Innovative Properties Company | Water resistant acoustic port in ear-mounted hearing device |
| US9408009B1 (en) * | 2015-10-30 | 2016-08-02 | Pebble Technology, Corp. | Combined microphone seal and air pressure relief valve that maintains a water tight seal |
| CN206136191U (en) * | 2016-10-28 | 2017-04-26 | 深圳市经纬科技有限公司 | Electronic equipment and microphone waterproof construction |
-
2016
- 2016-10-28 CN CN201610972387.6A patent/CN106385644A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160030246A1 (en) * | 2014-07-31 | 2016-02-04 | 3M Innovative Properties Company | Water resistant acoustic port in ear-mounted hearing device |
| US9408009B1 (en) * | 2015-10-30 | 2016-08-02 | Pebble Technology, Corp. | Combined microphone seal and air pressure relief valve that maintains a water tight seal |
| CN206136191U (en) * | 2016-10-28 | 2017-04-26 | 深圳市经纬科技有限公司 | Electronic equipment and microphone waterproof construction |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10469941B2 (en) | 2016-08-23 | 2019-11-05 | Apple Inc. | Vented acoustic transducers and related methods and systems |
| CN107369300A (en) * | 2017-06-09 | 2017-11-21 | 广东小天才科技有限公司 | The overboard detection means of a kind of electronic equipment, detection method and electronic equipment |
| WO2019109715A1 (en) * | 2017-12-08 | 2019-06-13 | 歌尔股份有限公司 | Microphone module |
| CN108508735A (en) * | 2018-05-28 | 2018-09-07 | 广东小天才科技有限公司 | A kind of waterproof construction of microphone system and the smartwatch with the waterproof construction |
| CN110958511A (en) * | 2018-09-26 | 2020-04-03 | 北京小米移动软件有限公司 | Repair processing method and repair processing system based on air tightness of audio channel |
| CN109201694A (en) * | 2018-11-08 | 2019-01-15 | 广州立景创新科技有限公司 | A kind of protective device |
| CN112087681A (en) * | 2019-06-12 | 2020-12-15 | 杭州海康威视数字技术股份有限公司 | Pickup device and cavity wall component for same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170208 |