CN201839424U - A solid conduction sound transmission device - Google Patents
A solid conduction sound transmission device Download PDFInfo
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- CN201839424U CN201839424U CN2010205983069U CN201020598306U CN201839424U CN 201839424 U CN201839424 U CN 201839424U CN 2010205983069 U CN2010205983069 U CN 2010205983069U CN 201020598306 U CN201020598306 U CN 201020598306U CN 201839424 U CN201839424 U CN 201839424U
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- 230000005540 biological transmission Effects 0.000 title abstract 3
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 238000013016 damping Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a solid conduction transaudient device, include: the vibration generator comprises a circuit board unit, an energy conversion unit, a shell and a vibration conduction unit, wherein the energy conversion unit is electrically connected with the circuit board unit and is sealed between the circuit board unit and the shell; the vibration conduction unit penetrates through the shell and is in signal connection with the energy conversion unit. By adopting the solid conduction sound transmission device of the technical scheme of the utility model, the vibration transmission unit is arranged, and the vibration of the vibration source is directly transmitted to the energy conversion unit in a solid conduction mode, so that the interference of various noisy sound waves in the environment is avoided, and the advantage in the effective extraction of weak signals is obvious; and the structure is simple, the main body is equivalent to a traditional electret condenser microphone, so the cost is low, the technology is mature, and the performance is reliable.
Description
Technical field
The utility model relates to the microphone field, is specifically related to a kind of solid conduction sound-conducting apparatus.
Background technology
Raising along with science and technology development and people's quality of life, how in having the environment of noisy background noise, extract the required vibration small-signal of a few thing, become the difficult problem that ought previously press for solution, this also is a new direction of current microphone research and development of products.Traditional way is to adopt single microphone that points to collect acoustic signals, carries out the signal processing and amplifying again, can also carry out the Filtering Processing of special frequency channel in case of necessity.But the directive property of existing microphone is general, is difficult for collecting needed vibration signal.Even can collect required vibration signal sometimes, also will inevitably introduce many ambient noises, make the signal that collects be subjected to very big interference, mask sometimes even by the noisy background noise in the environment.And many times, the frequency band of background noise and useful signal overlaps, and can't remove by filtering.It is second-rate that final result is exactly the acoustical signal extracted of microphone, even the part acoustical signal reached out of use degree, therefore is necessary to improve.
Summary of the invention
The technical problems to be solved in the utility model is the above-mentioned defective that remedies prior art, and a kind of solid conduction sound-conducting apparatus is provided.
Technical problem of the present utility model adopts following technical scheme to be solved:
A kind of solid conduction sound-conducting apparatus comprises: circuit board unit, energy conversion unit, shell and conduct vibrations unit, and described energy conversion unit is electrically connected with circuit board unit, and is closed between circuit board unit and the shell; One end of described conduct vibrations unit runs through shell, and is connected with the energy conversion unit signal.
In the optimized technical scheme, described energy conversion unit comprises: backplane, vibrating diaphragm, pad, zona and conducting ring, and described vibrating diaphragm and backplane separate formation electric capacity by pad, and backplane is electrically connected with circuit board unit by described conducting ring; Described zona is arranged between vibrating diaphragm and the outer casing bottom.
Further in the optimized technical scheme, described energy conversion unit also comprises cavity; Described cavity is arranged on the periphery of conducting ring and backplane; Cavity is positioned at shell, and conducting ring and backplane are positioned at cavity.
Further in the optimized technical scheme, offer balancing hole on the described backplane.
Further in the optimized technical scheme, the uper side surface of described backplane also is provided with damping layer.
In the optimized technical scheme, described circuit board unit comprises circuit board, tube core, other electron component and signal output part; Described circuit board is closed in the shell aperture place; Described signal output part is positioned at the circuit board outside, and tube core, other electronic original part are positioned at the inboard of circuit board.
Further in the optimized technical scheme, offer through hole on the described circuit board.
In the optimized technical scheme, described conduct vibrations unit comprises conductive bar and fixed structure; Offer into the hole that shakes on the described shell, an end of described conductive bar enters in the shell by the hole of going into to shake, and vibration signal is connected with the reliable contact of the vibrating diaphragm of energy conversion unit, and the other end of conductive bar then is used for contacting with the extraneous vibration source; Described fixed structure is fixedlyed connected with conductive bar, and conductive bar is fixedlyed connected with described shell by fixed structure and reliable location.
Further in the optimized technical scheme, described fixed structure is and shell shape and the suitable tazza shape structure of size that described shell is fixedly installed in the described fixed structure.
Further in the optimized technical scheme, described conductive bar is a cylindrical structural, and the one end is to be used for the vibration output that contacts with vibrating diaphragm, and the other end is to be used for the vibration input that contacts with the extraneous vibration source; The diameter of described vibration output is less than the diameter of vibration input.
The beneficial effect that the utility model is compared with the prior art is:
Owing to be provided with the conduct vibrations unit, the vibration of the vibration source mode by solid conduction is directly passed to energy conversion unit, thereby avoids the interference of various noisy sound waves in the environment, thereby advantage be remarkable aspect effective extraction of small-signal; And it is simple in structure, and main body just is equivalent to a traditional electret capcitor microphone, thereby with low cost, and technology maturation, dependable performance.
Description of drawings
Fig. 1 be among the utility model embodiment one the solid conduction sound-conducting apparatus dissect structural representation;
Fig. 2 is the structural representation of conduct vibrations unit among the utility model embodiment one;
Fig. 3 be among the utility model embodiment two the solid conduction sound-conducting apparatus dissect structural representation;
Fig. 4 is the structural representation of conduct vibrations unit among the utility model embodiment two.
Below in conjunction with accompanying drawing the utility model is elaborated.
Embodiment
Embodiment one
A kind of solid conduction sound-conducting apparatus that this embodiment provides as shown in Figure 1, except as electret capcitor microphone comprise like that circuit board unit 1, energy conversion unit 2 and the shell 3, go back involving vibrations conduction unit 4.Described conduct vibrations unit 4 is used for the vibration signal in extraneous vibration source is directly conducted to energy conversion unit 2.
The signal of telecommunication that described circuit board unit 1 is used for energy conversion unit 2 is changed out carries out basic processing such as amplification, exports to follow-up client circuit then and is further processed.Circuit board unit 1 comprises circuit board 10, also comprises the tube core 11, other electron component 12 (such as resistance, electric capacity etc.) and the signal output part 13 that are arranged on the circuit board 10.
Described shell 3 is a barrel shaped structure in this embodiment, comprises bottom, sidewall, and the crimping that is positioned at the sidewall opening place.Described circuit board 10 is fixedly set in shell 3 opening parts by means of described crimping, thereby forms a space of roughly sealing with shell 3, and energy conversion unit 2 is closed in it.
Usually tube core 11 and other electron component 12 all are positioned at the inboard of circuit board 10, and signal output part 13 then is arranged on the outside of circuit board 10.Signal output part 13 can be the pin shown in Fig. 1, can be pad etc. also, is mainly used in the client circuit to be connected, and the output signal of solid conduction sound-conducting apparatus is passed to the client circuit.In addition, also offer through hole 101 on the circuit board 10 of this embodiment, thereby realize the unidirectivity of solid conduction sound-conducting apparatus; Uper side surface (being that backplane 21 is near the side surface towards circuit board 10) at backplane 21 also is provided with one deck damping layer 27 simultaneously, damping layer 27 is set can plays the dustproof effect.
Described energy conversion unit 2 is used for converting vibration signal to the signal of telecommunication, and exports to circuit board unit 1 and carry out preliminary treatment.Energy conversion unit 2 is arranged in the shell 3, and is pressed between the bottom of circuit board 10 and shell 3.Energy conversion unit 2 mainly comprises: backplane 21, vibrating diaphragm 22, pad 23, zona 24, conducting ring 25 and cavity 26.
Adopt pad 23 to separate between described backplane 21 and the vibrating diaphragm 22, make both keep certain distance, thereby constitute electric capacity.And also offer through hole 211 on the backplane 21, be used for the air pressure of balance backplane both sides about in the of 21 when vibrating diaphragm 22 vibrations, so this through hole 211 can be referred to as balancing hole.
Described zona 24 is arranged between the bottom of vibrating diaphragm 22 and shell 3, is used to make vibrating diaphragm 22 and shell 3 bottoms to keep certain distance, thereby makes things convenient for vibrating diaphragm 22 vibrations.Zona 24 can adopt becket.
Described conducting ring 25 is arranged on and between backplane 21 and the circuit board 10, and the electrical signal conduction that is used for producing on the backplane 21 is given circuit board 10.In order to make electric conductivity good, conducting ring 25 adopts copper ring usually.
Assembling, and the location that makes things convenient for conducting ring 25 for convenience, described cavity 26 are set at the periphery of conducting ring 25 and backplane 21.Cavity 26 is positioned at shell 3, and conducting ring 25 is positioned at columnar cavity 26 with backplane 21.
The solid conduction sound-conducting apparatus of this embodiment just is to have set up a conduct vibrations unit 4 with the maximum difference of general electret capacitor type formula microphone.Conduct vibrations unit 4 is used for conduct vibrations with the extraneous vibration source to vibrating diaphragm 22, for this reason, specially offers through hole 31 in shell 3 bottoms and stretches in the shell 3 for an end of conduct vibrations unit 4, and make it reliably to contact with vibrating diaphragm 22; The other end of conduct vibrations unit 4 then is used for contacting with vibration source, thus with the conduct vibrations of vibration source to vibrating diaphragm 22.Through hole 31 is similar to the tone-entering hole of offering on the general electret capcitor microphone shell 3, but size is obviously bigger, and because what enter shell by it is vibration but not in general sense sound wave, so can be referred to as into the hole that shakes.
The concrete structure of conduct vibrations unit 4 comprises as shown in Figure 2: conductive bar 40 and fixed structure 41.Conductive bar 40 is a cylindrical structural in this embodiment.Fixed structure 41 in this embodiment be one with the suitable tazza shape structure of shape and size of shell 3, comprise a wall of cup 411 and a cup end 412.Wall of cup 411 and cup 412 surround the tazza shape space 43 of a upper end open, and the size and the described shell 3 in tazza shape space 43 are suitable.Described conductive bar 40 is one-body molded with fixed structure 41, and an end of conductive bar 40 412 centers at the bottom of the cup are passed and protruded from the tazza shape space 43.The end that conductive bar 40 is positioned at cup 43 can be called vibration output 401, and the other end of conductive bar 40 then can be called vibration input 402 accordingly.In this embodiment, vibration output 401 is coaxial with vibration input 402, and diameter is identical.Need to prove that conduct vibrations unit 4 is not limited to adopt shaft-like conductive bar, more be not limited to adopt columned conductive bar.
The described shell 3 in assembling back promptly tightly is enclosed in the tazza shape space 43 of these tazza shape fixed structure 41 formation, thereby conductive bar 40 is connected with shell 3 secure fixation, and an end of guaranteeing conductive bar 40 stretches into from the hole of going into to shake of shell 3 bottoms, and reliably contacts with vibrating diaphragm 22.Installed, vibration input 402 reliably contacts with the extraneous vibration source, with the conduct vibrations of vibration source to vibrating diaphragm 22.And the vibration of vibrating diaphragm 22 makes the distance between vibrating diaphragm 22 and the backplane 21 change, thereby produces a ultra-weak electronic signal corresponding with vibration signal on backplane 21.Described ultra-weak electronic signal conducts to circuit board 10 through copper ring, and is comprised on the circuit board 10 that the circuit of tube core 11, other electron component 12 etc. amplifies, and finally exports follow-up client circuit to by signal output part 13 and is further processed and uses.
The solid conduction sound-conducting apparatus of this embodiment, owing to be provided with conduct vibrations unit 4, the vibration of the vibration source mode by solid conduction is directly passed to energy conversion unit 2, thereby but avoid the interference of various noisy sound waves in the environment, thereby advantage is remarkable aspect effective extraction of small-signal; And it is simple in structure, and main body just is equivalent to a traditional electret capcitor microphone, thereby with low cost, and technology maturation, dependable performance.
Embodiment two
As shown in Figure 3, the solid conduction sound-conducting apparatus of this embodiment is conduct vibrations unit 4 with the difference of embodiment one.Conduct vibrations unit 4 as shown in Figure 4, an end of its conductive bar 40 is littler than the other end, particularly be the vibration output 401 diameter than the vibration input 402 diameter little.The advantage that this kind structure is compared embodiment one is that the hole of going into to shake of outer casing bottom can do forr a short time, thereby can farthest reduce the extraneous acoustical signal of transmitting by air vibration.
In addition, not offering on the circuit board 10 that benefit that through hole 101 does like this is can be so that the water resistance of product be better.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. solid conduction sound-conducting apparatus, comprise: circuit board unit, energy conversion unit and shell, described energy conversion unit is electrically connected with circuit board unit, and be closed between circuit board unit and the shell, it is characterized in that, described solid conduction sound-conducting apparatus is the involving vibrations conduction unit also, and described conduct vibrations unit runs through shell, and is connected with the energy conversion unit signal.
2. a kind of solid conduction sound-conducting apparatus as claimed in claim 1, it is characterized in that, described energy conversion unit comprises: backplane, vibrating diaphragm, pad, zona and conducting ring, and described vibrating diaphragm and backplane separate formation electric capacity by pad, and backplane is electrically connected with circuit board unit by described conducting ring; Described zona is arranged between vibrating diaphragm and the outer casing bottom.
3. a kind of solid conduction sound-conducting apparatus as claimed in claim 2 is characterized in that described energy conversion unit also comprises cavity; Described cavity is arranged on the periphery of conducting ring and backplane; Cavity is positioned at shell, and conducting ring and backplane are positioned at cavity.
4. a kind of solid conduction sound-conducting apparatus as claimed in claim 2 is characterized in that, offers balancing hole on the described backplane.
5. a kind of solid conduction sound-conducting apparatus as claimed in claim 2 is characterized in that the uper side surface of described backplane also is provided with damping layer.
6. a kind of solid conduction sound-conducting apparatus as claimed in claim 1 is characterized in that described circuit board unit comprises circuit board, tube core, other electron component and signal output part; Described circuit board is closed in the shell aperture place; Described signal output part is positioned at the circuit board outside, and tube core, other electronic original part are positioned at the inboard of circuit board.
7. a kind of solid conduction sound-conducting apparatus as claimed in claim 6 is characterized in that, offers through hole on the described circuit board.
8. as any described a kind of solid conduction sound-conducting apparatus in the claim 1 to 7, it is characterized in that described conduct vibrations unit comprises conductive bar and fixed structure; Offer into the hole that shakes on the described shell, an end of described conductive bar enters in the shell by the hole of going into to shake, and vibration signal is connected with the reliable contact of the vibrating diaphragm of energy conversion unit, and the other end of conductive bar then is used for contacting with the extraneous vibration source; Described fixed structure is fixedlyed connected with conductive bar, and conductive bar is fixedlyed connected with described shell by fixed structure and reliable location.
9. a kind of solid conduction sound-conducting apparatus as claimed in claim 8 is characterized in that, described fixed structure is and shell shape and the suitable tazza shape structure of size that described shell is fixedly installed in the described fixed structure.
10. a kind of solid conduction sound-conducting apparatus as claimed in claim 8 is characterized in that described conductive bar is a cylindrical structural, and the one end is to be used for the vibration output that contacts with vibrating diaphragm, and the other end is to be used for the vibration input that contacts with the extraneous vibration source; The diameter of described vibration output is less than the diameter of vibration input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205983069U CN201839424U (en) | 2010-11-08 | 2010-11-08 | A solid conduction sound transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205983069U CN201839424U (en) | 2010-11-08 | 2010-11-08 | A solid conduction sound transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839424U true CN201839424U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205983069U Expired - Fee Related CN201839424U (en) | 2010-11-08 | 2010-11-08 | A solid conduction sound transmission device |
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| Country | Link |
|---|---|
| CN (1) | CN201839424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957992A (en) * | 2011-08-15 | 2013-03-06 | 哈曼国际工业有限公司 | Dual backplate microphone |
| WO2020000691A1 (en) * | 2018-06-29 | 2020-01-02 | 深圳市大疆创新科技有限公司 | Electret-based microphone, acoustic vibration detection device, and racing remote control car |
-
2010
- 2010-11-08 CN CN2010205983069U patent/CN201839424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957992A (en) * | 2011-08-15 | 2013-03-06 | 哈曼国际工业有限公司 | Dual backplate microphone |
| WO2020000691A1 (en) * | 2018-06-29 | 2020-01-02 | 深圳市大疆创新科技有限公司 | Electret-based microphone, acoustic vibration detection device, and racing remote control car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Kan Tsang Industrial Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Kan Tsang Industrial Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |