CN104113801A - Waterproof microphone - Google Patents
Waterproof microphone Download PDFInfo
- Publication number
- CN104113801A CN104113801A CN201410279895.7A CN201410279895A CN104113801A CN 104113801 A CN104113801 A CN 104113801A CN 201410279895 A CN201410279895 A CN 201410279895A CN 104113801 A CN104113801 A CN 104113801A
- Authority
- CN
- China
- Prior art keywords
- ring
- fabric
- water
- waterproof membrane
- attached
- 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
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to waterproof microphone comprises a housing, a waterproof membrane, a vibrating membrane, a gasket, and a polar ring. A through hole is formed in the center of the bottom of housing; and the waterproof membrane is contacted to the bottom of the housing. A first copper ring is arranged at the upper surface of the waterproof membrane; a second copper ring is contacted to the upper surface of the first copper ring; and the vibrating membrane is contacted to the upper surface of the second copper ring. The gasket is contacted to the upper surface of the vibrating membrane. A back electrode plate is arranged at the upper surface of the portion, approaching circular hole, of the gasket; and two through holes are formed in the back electrode plate. A plastic ring is arranged at the upper surface of the other portion of the gasket; the outer wall of the polar ring is contacted to the inner wall of the plastic ring; and the bottom of the polar ring is contacted with the back electrode plate. The waterproof membrane for the waterproof effect is arranged between the housing and the first copper ring, so that the microphone can be used normally even in environments with moisture and severe dust pollution and thus the application range is wide. Moreover, the waterproof membrane is made of the waterproof textile material; and a hydrophobicity membrane-forming agent and an environment-friendly waterproof agent are successively coated at the surface of the textile material, so that the liquid water can not penetrate the textile material and thus no acoustic attenuation is caused.
Description
Technical field
The present invention relates to a kind of microphone, relate in particular to a kind of water-proof type microphone.
Background technology
Microphone, is again microphone, microphone, microphone, is voice signal to be converted to the energy conversion device of the signal of telecommunication.As shown in Figure 1, traditional microphones comprises shell 1, copper ring 2-2, vibrating diaphragm 2-1, pad 3, back pole plate 4, moulds ring 5, polar ring 6, Air Filter 8 and PCB assembly.Described copper ring 2-2 is attached at shell 1 upper bottom surface, described vibrating diaphragm 2-1 is attached at copper ring 2-2, described pad 3 is attached at vibrating diaphragm 2-1, pad 3 is provided with back pole plate 4 near the part upper surface of shell circular hole, on back pole plate 4, be provided with two through holes, pad 3 another part upper surfaces are provided with moulds ring 5, and described polar ring 6 outer walls are attached at moulds ring 5 inwalls, and polar ring 6 connects back pole plate 4 and pcb board 7 up and down.
Such design makes microphone in humidity or has the place of water to use and will be damaged, and makes the useful life of microphone shorter.
Summary of the invention
The object of the invention is to exist above-mentioned problem for existing microphone, provide a kind of environment for use wider, a kind of water-proof type microphone of longer service life.
The technical scheme that the present invention solves its technical problem employing is, a kind of water-proof type microphone is proposed, comprise shell, waterproof membrane, vibrating diaphragm, pad and polar ring, described outer casing bottom center is provided with a through hole, described waterproof membrane is attached at shell upper bottom surface, waterproof membrane upper surface is provided with the first copper ring, the first copper ring upper surface is pasted with the second copper ring, described vibrating diaphragm is attached at the second copper ring upper surface, described pad is attached at vibrating diaphragm upper surface, described pad is provided with back pole plate near the part upper surface of circular hole, on back pole plate, be provided with two through holes, pad another part upper surface is provided with moulds ring, described polar ring outer wall is attached at moulds ring inwall, polar ring bottom surface contacts with back pole plate, wherein, described waterproof membrane is to be made by waterproof fabric material, described waterproof fabric material is to take fabric as matrix, adopt film forming agent and waterproofing agent by rolling, dry, roasting technique is made.
Water-proof type microphone of the present invention is provided with waterproof membrane at shell upper bottom surface, and waterproof membrane adopts waterproof fabric material to make, and microphone also can normally be used in environment with water and that dust pollution is serious, and the scope of application is wide, and the life-span is more permanent.
Further, described fabric is a kind of in terylene, acrylic fibers, polypropylene fibre, nylon, and the aperture of described fabric is 200-400 order.Fabric aperture is very large for the impact of waterproof membrane water resistance, and when aperture is 200-400 order when (being equivalent to 30-70 μ m), as known from Table 1, aqueous water can not see through fabric, and the water resistance of fabric is very excellent.On the other hand, 200-400 order fabric oise insulation factor after film forming agent and waterproofing agent processing does not have significant change, if order number is too high, fabric aperture is too small, what after film forming agent and waterproofing agent processing, fabric face became is coarse, and when sound wave incides fabric face, coarse surface can increase the contact area of fabric and acoustic energy, the resonance effects that sound wave causes is strengthened, thereby caused SATT.
Table 1: the diameter of hydrone under different shape
Further, described film forming agent is one or more in styrene, poly-amino modified resin, methyl acrylate copolymer, PVP/hexadecene copolymer, ethylene/vinyl acetate polymer wax.Fabric forms one deck polymeric membrane at matrix surface after film forming agent is processed, and aperture is further diminished, and fabric waterproof ability is further strengthened.And film forming agent of the present invention is hydrophobic film-forming agent, can guarantee that aqueous water does not see through the micropore of fabric.
Further, described waterproofing agent is waterproofing agent of organosilicon, and described waterproofing agent of organosilicon is vinyl/amino co-modified silicone oil waterproofing agent.Because the waterproofing agent fluorocarbons mainly using at present has certain bioaccumulation, there is serious ecological problem, and expensive.Therefore, the present invention selects waterproofing agent of organosilicon, and waterproofing agent of organosilicon is vinyl/amino co-modified silicone oil waterproofing agent, fabric is processed rear surface through waterproofing agent and is formed hydrophobic layer, make aqueous water become large (approach 140 °, undressed clothing in contact angle is greatly about 90 ° of left and right) at its surperficial contact angle, water diminishes with the bonding tension force of fabric, both easily depart from, so played waterproof action.
Further, the preparation method of described waterproof membrane comprises the following steps:
The film forming agent aqueous solution of S1, preparation 20-40% concentration, in the film forming agent aqueous solution, pads processing through padding machine by fabric substrate complete wetting, and film forming agent is coated on fabric substrate, is then placed in baker drying and processing;
S2, by the fabric substrate complete wetting after above-mentioned processing in the waterproofing agent ethyl acetate solution of 5-20%, then pad processing through padding machine, waterproofing agent is coated on fabric substrate, then is placed in baker drying and processing, obtain waterproof membrane.
After fabric face applies film forming agent, can dwindle the aperture of fabric, improve water proofing property, and along with the increase of film forming agent concentration, water proofing property improves more obvious.But along with the increase of film forming agent concentration, aperture reduces, when sound wave incides fabric face, the vibration that sound wave produces causes the air vibration in aperture or gap, causes the friction between air particle and fabric hole wall, cause a part of acoustic energy to be converted into heat energy, thereby make acoustic wave energy decay.Therefore, from abundant experimental results, draw, when film forming agent concentration is controlled at 20-40%, the water proofing property of fabric reach preferable states relative to oise insulation factor.
The water proofing property of fabric is subject to the impact of waterproofing agent very large, and along with the increase of waterproofing agent concentration, fabric face forms hydrophobic layer, makes aqueous water become large at its surperficial contact angle, and water diminishes and easily departs from the bonding tension force of fabric.But if during waterproofing agent excessive concentration, fabric face may the little molecule hydroaropic substance of enrichment, causes waterproofing agent in the cementitiousness variation of fabric face, and the water resistance of fabric is slightly declined.And along with the increase of waterproofing agent concentration, the oise insulation factor of fabric also can increase thereupon.Therefore,, when waterproofing agent concentration is controlled within the scope of the present invention, the water proofing property of waterproof membrane of the present invention is relative with entrant sound ability the most suitable.
Further, in the preparation method of described waterproof membrane, in step S1, padding machine pads 1-5 time, and padding machine pressure is 0.1-0.5MPa, and pick-up is 50-80%; Baker baking temperature is 200-230 ℃, and the time of baking is 5-10min.Along with baker baking temperature and the increase that bakes the time, can fully remove the moisture in film forming agent, make film forming agent self-crosslinking reaction more abundant, improved integrality and the film strength of film forming agent film forming.Consider the oise insulation factor of fabric and the problems such as cost of waterproof membrane, the present invention is controlled at above-mentioned scope inner waterproofing film properties the best by baker baking temperature and the time that bakes.
Further, in the preparation method of described waterproof membrane, in step S2, padding machine pads 1-5 time, and padding machine pressure is 0.1-0.5MPa, and pick-up is 50-80%; Baker baking temperature is 100-180 ℃, and the time of baking is 10-20min.Along with the rising of baker baking temperature with bake the prolongation of time, fabric increases gradually to the contact angle of water, but reaching (the present invention is 180 ℃ of baking temperatures, bakes time 20min) contact angle after certain value reaches maximum, therefore, do not need to continue again heat up or bake.But if baking temperature is too low or to bake the time too short, the macromolecular chain of waterproofing agent is just attached to fabric face and does not enter fabric fibre inside, easily comes off from fabric face, thereby affects its water proofing property.So must control baking temperature can not be lower than 100 ℃, the time of baking can not be less than 10min.
Further, described microphone also comprises Air Filter and PCB assembly, and described Air Filter is attached at shell bottom surface; Described PCB assembly is supported and is buckled in enclosure by polar ring.
Further, described in mould ring and leave space with shell, mould ring upper end and PCB assembly and leave space, lower end and pad leave space.
Further, described PCB assembly also comprises field effect transistor, the first electric capacity, the second electric capacity, pcb board and contact pin, described field effect transistor is attached at pcb board lower surface, field effect transistor upper surface contacts with contact pin lower surface, described the first electric capacity is attached at pcb board lower surface, a part for described the second electric capacity is attached at pcb board lower surface, and another part is attached at contact pin lower surface, and described contact pin inserts on pcb board.
Compared with prior art, the present invention has following advantage:
1, water-proof type microphone of the present invention is provided with one deck waterproof membrane between shell and the first copper ring, the effect of a waterproof is played in such design, microphone not only can be used in environment with water, and also can normally use in the serious environment of dust pollution, the scope of application is wide, and the life-span is more permanent.
2, waterproof membrane is made by waterproof fabric material, and the aperture of fabric is 200-400 order, makes liquid water can not see through fabric, nor can cause SATT; In addition, on fabric substrate surface, be also coated with successively hydrophobic film-forming agent and environment-friendly type waterproofing agent, further the water resistance of reinforcement fabric.
3, waterproof membrane, in preparation process, is strictly controlled to the concentration of film and waterproofing agent, and the technological parameters such as baking temperature, time, with waterproof membrane water proofing property and the relative optimum values that reach of performance such as oise insulation factor that guarantees to obtain.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of traditional microphones.
Fig. 2 is overall structure schematic diagram of the present invention.
Embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Please refer to Fig. 2, in one embodiment of the invention, water-proof type microphone, it comprises shell 1, waterproof membrane 2-1, the first copper ring 2-2, the second copper ring 2-3, vibrating diaphragm 2-4, pad 3, back pole plate 4, moulds ring 5, polar ring 6, Air Filter 8, PCB assembly; Described waterproof membrane 2-1, the first copper ring 2-2, the second copper ring 2-3, vibrating diaphragm 2-4, pad 3, back pole plate 4, mould ring 5, polar ring 6, PCB assembly are positioned at shell 1 inside; Air Filter 8 is positioned at shell 1 outside.
Air Filter 8 is attached at shell 1 bottom surface, for the protection of microphone, prevents that dust from falling vibrating diaphragm 2-4 upper, prevents that exterior object from puncturing vibrating diaphragm 2-4.
Shell 1 is cylinder shape, and its effect is the strutting piece of whole microphone, and other part is encapsulated in shell 1, and shell 1 can also play the effect of electromagnetic shielding.In addition, the bottom of shell 1 is provided with a manhole, and sound propagates into the inside of microphone by this through hole.
Waterproof membrane 2-1 is attached at shell upper bottom surface, plays the effect of a waterproof.
The first copper ring 2-2 is attached at waterproof membrane 2-1 upper surface, and the first copper ring 2-2 upper surface is pasted with the second copper ring 2-3, and the effect of these two copper rings is upper lower support waterproof membrane 2-1 and vibrating diaphragm 2-4, for the vibration of vibrating diaphragm 2-4 provides space.
Vibrating diaphragm 2-4 is an extremely quiet plastic film, evaporates one deck proof gold film on it, and then, after high voltage electric field electret, the charges of different polarity are had respectively on two sides stationed, forms an electric capacity between this vibrating diaphragm 2-4 and back pole plate 4.When sound imports into, vibrating diaphragm 2-4 vibrates with the transmission of sound wave, now the capacitance between vibrating diaphragm 2-4 and back pole plate 4 also changes with sound, thereby has produced the alternating voltage signal changing with sound wave, has so just completed the process that sound is converted to the signal of telecommunication.The size of change in voltage, has reflected the power of extraneous acoustic pressure, and this change in voltage frequency has reflected the frequency of external sound.
Pad 3 is annular, be attached at vibrating diaphragm 2-4 upper bottom surface, pad 3 is pasted with back pole plate 4 near the part upper surface of circular hole, and another part upper surface is provided with moulds ring 5, the effect of pad 3 is isolation vibrating diaphragm 2-4 and back pole plates 4, for the vibration of vibrating diaphragm 2-4 provides a space.
Mould ring 5 and leave space with shell 6, mould ring 5 upper ends and PCB assembly and leave space, lower end and pad 3 leave space.Mould the effect that ring 5 plays an insulation, avoided forming electric capacity between shell 1 and polar ring 6, thereby affected microphone.
Back pole plate 4 is attached at pad 3 upper surfaces, sidewall be close to mould ring 5, upper surface is provided with polar ring 6, is also provided with two through holes on back pole plate 4.Back pole plate 4 is as another electrode of electric capacity.
Polar ring is connecting PCB board 7 and back pole plate 4 Shang Xia 6, and its outer wall is attached at moulds ring 5 inwalls, and its bottom surface contacts with back pole plate 4.First polar ring 6 plays the effect of a support, in addition the signal of telecommunication is sent on pcb board 7.
PCB assembly supports and is buckled in shell 1 inside by polar ring 6, also plays the effect of a fixation kit simultaneously.PCB assembly comprises field effect transistor (FET) 9, the first electric capacity 10, the second electric capacity 11, pcb board 7 and contact pin 12, FET9 is attached at pcb board 7 lower surfaces, FET9 upper surface contacts with contact pin 12 lower surfaces, described the first electric capacity 10 is attached at pcb board 7 lower surfaces, a part for described the second electric capacity 11 is attached at pcb board 7 lower surfaces, another part is attached at contact pin 12 lower surfaces, and described contact pin 12 inserts on pcb board 7.
Wherein FET9 is the effect of playing impedance transformation and amplification, is mainly impedance transformation.Utilize the high input impedance of FET to realize impedance transformation, to obtain higher FET grid voltage between source electrodes, thereby obtain larger output signal; Contact pin 12 can be connected transducer and carry out the transmission of signal with external equipment.
Wherein, above-mentioned waterproof membrane 2-1 is made by waterproof fabric material, and described waterproof fabric material is to take fabric as matrix, adopt film forming agent and waterproofing agent by rolling, dry, roasting technique makes.
Embodiment 1:
Prepare the poly-amino modified resin aqueous solution of 20% concentration, standby.By aperture be 200 object acrylic fabric matrix complete wettings in the poly-amino modified resin aqueous solution preparing, pad 5 times through padding machine, padding machine pressure is controlled as 0.1MPa, pick-up is 50%, and film forming agent is coated on fabric substrate.Then in being the curer of 200 ℃, baking temperature cures 10min.In the ethyl acetate solution of the vinyl that is 5% by fabric substrate complete wetting in concentration afterwards/amino co-modified silicone oil, then pad 4 times through padding machine, padding machine pressure is controlled at 0.1MPa equally, and pick-up is 50%, and waterproofing agent is coated on fabric substrate.Finally fabric in being the curer of 140 ℃, baking temperature is baked to 20min, the dry waterproof membrane that obtains.
Embodiment 2:
Prepare the methyl acrylate copolymer aqueous solution of 30% concentration, standby.By aperture be 300 object dacron matrix complete wettings in the methyl acrylate copolymer aqueous solution preparing, pad 3 times through padding machine, padding machine pressure is controlled as 0.2MPa, pick-up is 65%, and film forming agent is coated on fabric substrate.Then in being the curer of 210 ℃, baking temperature cures 8min.Afterwards by fabric substrate complete wetting in the ethyl acetate solution of vinyl/amino co-modified silicone oil of 10%, then pad 3 times through padding machine, padding machine pressure is controlled at 0.2MPa equally, pick-up is 65%, and waterproofing agent is coated on fabric substrate.Finally in being the curer of 160 ℃, baking temperature bakes 18min, the dry waterproof membrane that obtains.
Embodiment 3:
Prepare the ethylene/vinyl acetate polymer wax aqueous solution of 35% concentration, standby.By aperture be 350 object RIPSTOP matrix complete wettings in the ethylene/vinyl acetate polymer wax aqueous solution preparing, pad 2 times through padding machine, padding machine pressure is controlled as 0.3MPa, pick-up is 70%, and film forming agent is coated on fabric substrate.Then in being the curer of 220 ℃, baking temperature cures 7min.Afterwards by fabric substrate complete wetting in the ethyl acetate solution of vinyl/amino co-modified silicone oil of 15%, then pad 3 times through padding machine, padding machine pressure is controlled at 0.3MPa equally, pick-up is 70%, and waterproofing agent is coated on fabric substrate.Finally in being the curer of 170 ℃, baking temperature bakes 15min, the dry waterproof membrane that obtains.
Embodiment 4:
Prepare PVP/hexadecene aqueous copolymers solution of 40% concentration, standby.By aperture, be that 400 object polypropylene fabric matrix complete wettings are in the PVP/hexadecene aqueous copolymers solution preparing, through padding machine, pad 3 times, padding machine pressure is controlled as 0.5MPa, and pick-up is 80%, and film forming agent is coated on fabric substrate.Then in being the curer of 230 ℃, baking temperature cures 5min.Afterwards by fabric substrate complete wetting in the ethyl acetate solution of vinyl/amino co-modified silicone oil of 20%, then pad 2 times through padding machine, padding machine pressure is controlled at 0.5MPa equally, pick-up is 80%, and waterproofing agent is coated on fabric substrate.Finally in being the curer of 180 ℃, baking temperature bakes 10min, the dry waterproof membrane that obtains.
The waterproof membrane that embodiment of the present invention 1-4 is made carries out performance test, and test result is as shown in table 2.
The waterproof membrane the performance test results that table 2: embodiment of the present invention 1-4 makes
As known from Table 2, the present invention selects the waterproof membrane intensity that fabric makes there is no much impacts after film forming agent and waterproofing agent processing, depends primarily on fabric itself, and wherein the highest with the intensity of polypropylene fibre, acrylic fibers intensity is minimum, and terylene and nylon intensity are comparatively suitable.Select aperture fabric within the scope of the present invention after film forming agent and waterproofing agent are processed, fabric there is fabulous water proofing property and the oise insulation factor < 3 of fabric.
The waterproof membrane that embodiment of the present invention 1-4 is made applies in water-proof type microphone of the present invention, the waterproof membrane making due to the present invention has good water proofing property and lower oise insulation factor, the water-proof type microphone scope of application that the present invention is made is wider, can in environment moist and that dust pollution is comparatively serious, use, microphone can not damage and tonequality can not be affected.In addition, microphone can also tolerate the immersion of water, the common liquids such as anti-beverage, beer, coffee, and performance boost is comparatively obvious, makes the cost performance of microphone higher.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (10)
1. a water-proof type microphone, comprise shell, waterproof membrane, vibrating diaphragm, pad and polar ring, it is characterized in that: described outer casing bottom center is provided with a through hole, described waterproof membrane is attached at shell upper bottom surface, waterproof membrane upper surface is provided with the first copper ring, the first copper ring upper surface is pasted with the second copper ring, described vibrating diaphragm is attached at the second copper ring upper surface, described pad is attached at vibrating diaphragm upper surface, described pad is provided with back pole plate near the part upper surface of circular hole, on back pole plate, be provided with two through holes, pad another part upper surface is provided with moulds ring, described polar ring outer wall is attached at moulds ring inwall, polar ring bottom surface contacts with back pole plate, wherein, described waterproof membrane is to be made by waterproof fabric material, described waterproof fabric material is to take fabric as matrix, adopt film forming agent and waterproofing agent by rolling, dry, roasting technique is made.
2. a kind of water-proof type microphone according to claim 1, is characterized in that, described fabric is a kind of in terylene, acrylic fibers, polypropylene fibre, nylon, and the aperture of described fabric is 200-400 order.
3. a kind of water-proof type microphone according to claim 1, it is characterized in that, described film forming agent is one or more in styrene, poly-amino modified resin, methyl acrylate copolymer, PVP/hexadecene copolymer, ethylene/vinyl acetate polymer wax.
4. a kind of water-proof type microphone according to claim 1, is characterized in that, described waterproofing agent is waterproofing agent of organosilicon, and described waterproofing agent of organosilicon is vinyl/amino co-modified silicone oil waterproofing agent.
5. a kind of water-proof type microphone according to claim 1, is characterized in that, the preparation method of described waterproof membrane comprises the following steps:
The film forming agent aqueous solution of S1, preparation 20-40% concentration, in the film forming agent aqueous solution, pads processing through padding machine by fabric substrate complete wetting, and film forming agent is coated on fabric substrate, is then placed in baker drying and processing;
S2, by the fabric substrate complete wetting after above-mentioned processing in the waterproofing agent ethyl acetate solution of 5-20%, then pad processing through padding machine, waterproofing agent is coated on fabric substrate, then is placed in baker drying and processing, obtain waterproof membrane.
6. a kind of water-proof type microphone according to claim 5, is characterized in that, in the preparation method of described waterproof membrane, in step S1, padding machine pads 1-5 time, and padding machine pressure is 0.1-0.5MPa, and pick-up is 50-80%; Baker baking temperature is 200-230 ℃, and the time of baking is 5-10min.
7. a kind of water-proof type microphone according to claim 5, is characterized in that, in the preparation method of described waterproof membrane, in step S2, padding machine pads 1-5 time, and padding machine pressure is 0.1-0.5MPa, and pick-up is 50-80%; Baker baking temperature is 100-180 ℃, and the time of baking is 10-20min.
8. a kind of water-proof type microphone according to claim 1, is characterized in that, described microphone also comprises Air Filter and PCB assembly, and described Air Filter is attached at shell bottom surface; Described PCB assembly is supported and is buckled in enclosure by polar ring.
9. a kind of water-proof type microphone according to claim 8, is characterized in that, described in mould ring and leave space with shell, mould ring upper end and PCB assembly and leave space, lower end and pad leave space.
10. a kind of water-proof type microphone according to claim 8, it is characterized in that, described PCB assembly also comprises field effect transistor, the first electric capacity, the second electric capacity, pcb board and contact pin, described field effect transistor is attached at pcb board lower surface, field effect transistor upper surface contacts with contact pin lower surface, and described the first electric capacity is attached at pcb board lower surface, and a part for described the second electric capacity is attached at pcb board lower surface, another part is attached at contact pin lower surface, and described contact pin inserts on pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279895.7A CN104113801A (en) | 2014-06-20 | 2014-06-20 | Waterproof microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279895.7A CN104113801A (en) | 2014-06-20 | 2014-06-20 | Waterproof microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104113801A true CN104113801A (en) | 2014-10-22 |
Family
ID=51710410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279895.7A Pending CN104113801A (en) | 2014-06-20 | 2014-06-20 | Waterproof microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104113801A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106664495A (en) * | 2014-07-31 | 2017-05-10 | 3M创新有限公司 | Water resistant acoustic port in ear-mounted hearing device |
| CN108645502A (en) * | 2018-04-28 | 2018-10-12 | 北京遥测技术研究所 | A kind of aerospace craft noise testing Electret sound sensor |
| CN110971995A (en) * | 2018-09-28 | 2020-04-07 | 苹果公司 | Liquid-proof packaging for electroacoustic transducers and electronic devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933679A (en) * | 2006-09-30 | 2007-03-21 | 潍坊共达电讯有限公司 | Waterpoof and dampproof electret capacitance microphone |
| CN200956661Y (en) * | 2006-09-30 | 2007-10-03 | 潍坊共达电讯有限公司 | Waterproof moisture-proof electret condenser microphone |
| CN101702787A (en) * | 2009-11-18 | 2010-05-05 | 中山市天键电子工业有限公司 | Waterproof microphone |
| CN101816187A (en) * | 2007-10-09 | 2010-08-25 | 日东电工株式会社 | Sound passing member utilizing waterproof sound passing membrane and process for manufacturing the same |
| CN201585126U (en) * | 2009-11-18 | 2010-09-15 | 中山市天键电子工业有限公司 | Waterproof microphone |
| CN203305615U (en) * | 2013-05-23 | 2013-11-27 | 杭州市质量技术监督检测院 | Waterproof ventilated compound fabric |
-
2014
- 2014-06-20 CN CN201410279895.7A patent/CN104113801A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933679A (en) * | 2006-09-30 | 2007-03-21 | 潍坊共达电讯有限公司 | Waterpoof and dampproof electret capacitance microphone |
| CN200956661Y (en) * | 2006-09-30 | 2007-10-03 | 潍坊共达电讯有限公司 | Waterproof moisture-proof electret condenser microphone |
| CN101816187A (en) * | 2007-10-09 | 2010-08-25 | 日东电工株式会社 | Sound passing member utilizing waterproof sound passing membrane and process for manufacturing the same |
| CN101702787A (en) * | 2009-11-18 | 2010-05-05 | 中山市天键电子工业有限公司 | Waterproof microphone |
| CN201585126U (en) * | 2009-11-18 | 2010-09-15 | 中山市天键电子工业有限公司 | Waterproof microphone |
| CN203305615U (en) * | 2013-05-23 | 2013-11-27 | 杭州市质量技术监督检测院 | Waterproof ventilated compound fabric |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106664495A (en) * | 2014-07-31 | 2017-05-10 | 3M创新有限公司 | Water resistant acoustic port in ear-mounted hearing device |
| CN106664495B (en) * | 2014-07-31 | 2019-10-15 | 3M创新有限公司 | Waterproofness sound port in ear type hearing devices |
| CN108645502A (en) * | 2018-04-28 | 2018-10-12 | 北京遥测技术研究所 | A kind of aerospace craft noise testing Electret sound sensor |
| CN108645502B (en) * | 2018-04-28 | 2020-08-14 | 北京遥测技术研究所 | Electret noise sensor for measuring noise of aerospace vehicle |
| CN110971995A (en) * | 2018-09-28 | 2020-04-07 | 苹果公司 | Liquid-proof packaging for electroacoustic transducers and electronic devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209299516U (en) | A kind of loudspeaker mould group and electronic equipment | |
| CN209659616U (en) | Loudspeaker mould group | |
| CN209201321U (en) | Microphone device | |
| CN205847581U (en) | Loudspeaker enclosure | |
| CN104113801A (en) | Waterproof microphone | |
| WO2016184093A1 (en) | Electroacoustic conversion apparatus | |
| CN208940229U (en) | Sounding device | |
| CN205356670U (en) | Mini loudspeaker | |
| CN206506675U (en) | Loudspeaker and PlayGear Stealth | |
| CN204231652U (en) | A kind of loud speaker module | |
| CN207304902U (en) | Loudspeaker module and electronic equipment | |
| CN206042283U (en) | Initiative noise control earphone | |
| CN201611949U (en) | Acoustic sensor with noise reducing function | |
| CN208638695U (en) | Loudspeaker mould group | |
| CN204442689U (en) | Mems microphone | |
| CN110381426A (en) | Loudspeaker enclosure | |
| CN206118015U (en) | Ball top formula speaker | |
| WO2022111366A1 (en) | Diaphragm assembly and loudspeaker | |
| CN209314022U (en) | Smart terminal sound equipment | |
| CN204836559U (en) | Passive radiator and audio amplifier thereof | |
| CN204350297U (en) | Piezoelectric speaker | |
| CN203352791U (en) | Terminal and terminal housing | |
| CN202587315U (en) | Microphone | |
| CN208029079U (en) | Loudspeaker enclosure | |
| CN209659589U (en) | Compound sound film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141022 |