CN2446741Y - Improved skin contact piezoelectric mic - Google Patents
Improved skin contact piezoelectric mic Download PDFInfo
- Publication number
- CN2446741Y CN2446741Y CN 00245760 CN00245760U CN2446741Y CN 2446741 Y CN2446741 Y CN 2446741Y CN 00245760 CN00245760 CN 00245760 CN 00245760 U CN00245760 U CN 00245760U CN 2446741 Y CN2446741 Y CN 2446741Y
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- China
- Prior art keywords
- microphone
- sound
- circuit board
- skin contact
- improved skin
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Abstract
The utility model relates to an improved skin contacting piezoelectric microphone which can effectively put an end to all background sound except a subject sound source (users). The microphone comprises a housing, a circuit board arranged in the housing, a ceramic capacitance microphone arranged below the circuit board, a cushion ring arranged between the ceramic capacitance microphone and the circuit board and coating bodies which are coated outside all the components. Sound absorbing foamed cotton (a sponge) is utilized to enable resonance sound generated by the micro-vibration of human bodies to be concentrated and transferred to the ceramic capacitance microphone, and after the resonance sound is converted into sound wave signals by the ceramic capacitance microphone, sound waves can be amplified and output by the circuit board.
Description
The relevant a kind of improved skin contact piezoelectric microphone of the utility model refers to a kind ofly can effectively completely cut off theme source of sound (user) microphone of all background sounds in addition especially.
General Electret Condencer Microphone is to utilize air transmitted and belong to open, though it can obtain good tonequality, but its disadvantage is to completely cut off extraneous background sound source, and easily generation " feedback sound ", promptly be commonly called as and shout the bell effect, and it must grip or be fixed in nearly source of sound appropriate location with support when using with hand, or user's mouth the place ahead, cause to use and go up many shortcomings that can't overcome, so not satisfactory and inconvenient.Though there was the dealer to release the indirect sound wave conduction of contact microphone afterwards, though having overcome to use, it goes up inconvenience, also can eliminate background sound partly slightly, but it still has lower tone, sound muddiness, class " bucket sound " defective as speaking facing to bucket, obedient the other side is listened to painstakingly, be difficult for listening and distinguish that whose puzzlement the other side is.
So, there is the dealer to develop a kind of skin contact piezoelectric microphone, as Taiwan patent announcement number No. 310118, its outer placing of the microphone that this patent case is disclosed is contained a protecgulum and a bonnet, the leading edge of protecgulum is partly thinner, when being contacted with skin, it can produce preferable sound wave transmission, on the leading edge inboard and be provided with salient point, the combined back of protecgulum and bonnet produces a confined space, and the ora terminalis by bonnet forms a sincere not-go-end, this sincere not-go-end can make a metallic conduction sheet place therebetween, metallic conduction sheet top is a printed circuit board (PCB), this printed circuit board (PCB) can be worked as the electrode connection welding and be used, also can add and amplify element circuitry usefulness, metallic conduction sheet below is closely in abutting connection with there being last potsherd to reach potsherd down, following potsherd below and next-door neighbour are provided with a letter metallic conduction sheet, one spring can place in the salient point of protecgulum leading edge by its bigger end, and withstand the signal metal conducting strip slightly than small end, be provided with the negative signal electrode pads on the metallic conduction sheet and causing on the negative signal electrode pads of printed circuit board (PCB), and the signal metal conducting strip is provided with the positive signal electrode pads, and cause on the positive signal electrode pads of printed circuit board (PCB), the both positive and negative polarity signal electrode solder joint of printed circuit board (PCB) again conducting to the signal feed lines.
Because above-mentioned microphone needs two metallic conduction sheets and two potsherds, more time-consuming, the preface of taking a lot of work on making, be difficult for relatively making, and cost height, after microphone completes, whole thickness is thicker, Heavy Weight, and skin can be with the appropriate location of sound fine motion when speaking to be difficult for allowing the user be affixed on neck, face, chest or user.Therefore, microphone is to utilize spring or shell fragment will cause sound to be difficult for concentrating to conduct on the potsherd, causes to produce feedback sound.
Main purpose of the present utility model is to solve above-mentioned traditional defective, avoid the existence of defective, and providing a kind of improved skin contact piezoelectric microphone, this device only to adopt cladding body with sound-absorbing effect, enable voice effectively concentrated area conducts on the ceramic condenser microphone.
Another purpose of the present utility model provides a kind of improved skin contact piezoelectric microphone, it only utilizes single ceramic condenser microphone, not only can reduce cost, during fabrication more the saving working hour, economize operation, and make the reduced down in thickness of microphone, weight saving.
The purpose of this utility model is achieved in that a kind of improved skin contact piezoelectric microphone, can effectively completely cut off theme source of sound (user) microphone of all background sounds in addition, it is characterized in that: this microphone includes: a housing is made of the upper and lower half; One circuit board is to be configured between the above-mentioned upper and lower half; One ceramic condenser microphone is to be configured in the circuit board below, produces toot the sound altogether of little vibration in order to the pronunciation of reception human body, exports and produce an acoustic signals; One packing ring is to be configured between above-mentioned ceramic condenser microphone and the circuit board; One cladding body is that cladding is outside above-mentioned each assembly; By above-mentioned cladding body sound-absorbing foam (sponge), allow the enough concentrated areas of toot acoustic energy altogether that the little vibration of human body produced conduct on the ceramic condenser microphone, and after changing acoustic signals into by the ceramic condenser microphone, this sound wave is amplified output through circuit board.
Wherein this upper and lower half respectively has a holding part, and this holding part respectively undertakes an extension.
Wherein the extension of this first half is provided with similar shape not and is the groove that the portion of containing and passes for lead that connects of concavity,
Wherein the extension of this Lower Half is provided with similar shape not and is the junction surface of a convex shape.
Wherein this cladding body can be any in a sound-absorbing foam or the sponge.
The utility model is a kind of skin contact piezoelectric microphone, include: a housing, one is disposed at the circuit board of aforementioned enclosure interior, one is disposed at the ceramic condenser microphone of circuit board below, one is disposed at the packing ring between aforementioned ceramic condenser microphone and the circuit board, and the cladding body of a cladding outside above-mentioned each assembly, the aforementioned cladding body of mat sound-absorbing foam (sponge), the enough concentrated areas of toot acoustic energy altogether that allow the little vibration of human body be produced conduct on the ceramic condenser microphone, and after changing acoustic signals into by the ceramic condenser microphone, this sound wave is amplified output through circuit board.
Following conjunction with figs. describes structure of the present utility model, technical characterstic and effect in detail:
Fig. 1 is a schematic side view of the present utility model.
Fig. 2 is a casing upper half schematic diagram of the present utility model.
Fig. 3 is a housing Lower Half schematic diagram of the present utility model.
See also Fig. 1, Fig. 2, side-looking of the present utility model and housing upper and lower half schematic diagram shown in Figure 3.As shown in the figure: the utility model is a kind of improved skin contact piezoelectric microphone, can effectively completely cut off theme source of sound (user) microphone of all background sounds in addition, this microphone includes: a housing 1, one ceramic condenser microphone 2, one circuit board 3, one packing ring 4 and that reaches between the circuit board 3 that is disposed at aforementioned ceramic condenser microphone clads aforementioned ceramic condenser microphone 2, the cladding body 5 of circuit board 3 and packing ring 4 is formed, use for the user and be close to neck, face, skin can be with the appropriate location of sound fine motion when chest or user spoke, when the user pronounces and produces little vibration, sound wave can be exported.
The above-mentioned housing of carrying 1 is by last, Lower Half 11,12 constitute, and on, Lower Half 11,12 respectively have a holding part 111,121, this holding part 111,121 can ccontaining above-mentioned each assembly of carrying, this holding part 111, undertake an extension 112 on 121 respectively, 122, the extension 112 of this first half 11 is provided with similar shape not and is the groove 114 that the junction surface 113 and of concavity passes for lead, and the extension 122 of Lower Half 12 is provided with similar shape not and is the junction surface 123 of a convex shape, last, Lower Half 11,12 connect when containing, this two junction surface 113,123 also relative windings together.This ceramic condenser microphone 2 produces toot the sound altogether of little vibration in order to the pronunciation of reception human body, exports and produce an acoustic signals; This circuit board 3 is in order to amplify the acoustic signals output that above-mentioned ceramic condenser microphone 2 is produced.This packing ring 4, be configured in above-mentioned ceramic condenser microphone and circuit board 3 between, preventing contacting of ceramic condenser microphone, and produce short circuit or abnormal action with circuit board 3.This clads body 5, is to be a sound-absorbing foam (sponge), and toot the acoustic energy concentrated area altogether that allows the little vibration of human body be produced conducts on the ceramic condenser microphone; In this way, use formation one improved skin contact piezoelectric microphone.
See also side cross-sectional schematic of the present utility model shown in Figure 1.As shown in the figure: the neck that is close to the user at this housing 1, when the user talks, toot the sound altogether of sound fine motion conducts to ceramic condenser microphone 2 after can absorbing via sound-absorbing cladding body 5 (foam or sponge), producing an acoustic signals by ceramic condenser microphone 2 reaches on the circuit board 3, and after by the circuit on the circuit board 3 acoustic signals being amplified, institute's amplifying signal is transferred out by the output signal line 31 that is connected on the circuit board 3.
Because above-mentioned skin contact piezoelectric microphone only uses single ceramic condenser microphone 2, not only can reduce cost, making more the saving working hour, economizing operation, and making the reduced down in thickness of microphone, weight saving.Further, the utility model is at capacitance microphone 2, the outside cladding one of circuit board 3 and packing ring 4 has the cladding body 5 of sound-absorbing, can allow toot the sound concentrated area altogether of body sounds fine motion conduct on capacitance microphone 2, sound is difficult for leaving when conduction, and causes sound not know or have the phenomenon generation of echo.
Claims (5)
1, a kind of improved skin contact piezoelectric microphone can effectively completely cut off theme source of sound (user) microphone of all background sounds in addition, and it is characterized in that: this microphone includes: a housing is made of the upper and lower half; One circuit board is to be configured between the above-mentioned upper and lower half; One ceramic condenser microphone is to be configured in the circuit board below, produces toot the sound altogether of little vibration in order to the pronunciation of reception human body, exports and produce an acoustic signals; One packing ring is to be configured between above-mentioned ceramic condenser microphone and the circuit board; One cladding body is that cladding is outside above-mentioned each assembly; By above-mentioned cladding body sound-absorbing foam (sponge), allow the enough concentrated areas of toot acoustic energy altogether that the little vibration of human body produced conduct on the ceramic condenser microphone, and after changing acoustic signals into by the ceramic condenser microphone, this sound wave is amplified output through circuit board.
2, improved skin contact piezoelectric microphone as claimed in claim 1, it is characterized in that: wherein this upper and lower half respectively has a holding part, and this holding part respectively undertakes an extension.
3, improved skin contact piezoelectric microphone as claimed in claim 1 or 2 is characterized in that: wherein the extension of this first half is provided with similar shape not and is the groove that the portion of containing and a confession lead pass that connects of concavity,
4, improved skin contact piezoelectric microphone as claimed in claim 1 or 2 is characterized in that: wherein the extension of this Lower Half is provided with similar shape not and is the junction surface of a convex shape.
5, improved skin contact piezoelectric microphone as claimed in claim 1, it is characterized in that: wherein this cladding body can be any in a sound-absorbing foam or the sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00245760 CN2446741Y (en) | 2000-08-08 | 2000-08-08 | Improved skin contact piezoelectric mic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00245760 CN2446741Y (en) | 2000-08-08 | 2000-08-08 | Improved skin contact piezoelectric mic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2446741Y true CN2446741Y (en) | 2001-09-05 |
Family
ID=33605180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00245760 Expired - Fee Related CN2446741Y (en) | 2000-08-08 | 2000-08-08 | Improved skin contact piezoelectric mic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2446741Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929703A (en) * | 2014-04-29 | 2014-07-16 | 广州由我电子科技有限公司 | Body-conduction microphone |
-
2000
- 2000-08-08 CN CN 00245760 patent/CN2446741Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929703A (en) * | 2014-04-29 | 2014-07-16 | 广州由我电子科技有限公司 | Body-conduction microphone |
| CN103929703B (en) * | 2014-04-29 | 2015-01-07 | 广州由我电子科技有限公司 | Body-conduction microphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |