CN216873359U - Microphone of making an uproar falls in pronunciation - Google Patents
Microphone of making an uproar falls in pronunciation Download PDFInfo
- Publication number
- CN216873359U CN216873359U CN202122009325.4U CN202122009325U CN216873359U CN 216873359 U CN216873359 U CN 216873359U CN 202122009325 U CN202122009325 U CN 202122009325U CN 216873359 U CN216873359 U CN 216873359U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- resistor
- noise reduction
- microphone
- capacitors
- 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.)
- Active
Links
Images
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The utility model relates to a voice noise reduction microphone, comprising: dust screen, upper cover, silica gel pad, circuit board, casing, pencil and connector. The dustproof net is used for preventing external foreign matters from entering the product through the sound inlet hole of the upper cover; the upper cover is provided with a sound inlet hole of a sound transmission passage, a silica gel pad mounting positioning hole and a wiring harness assembling clamping groove; assembling the silica gel pad and the upper cover; the circuit board comprises a noise reduction processing circuit and a voice acquisition circuit, and is arranged in the shell, 2 silicon microphones are arranged on the circuit board, one is responsible for voice acquisition, and the other is responsible for noise acquisition; a structure for positioning and supporting the circuit board and a clamping groove matched with the upper cover in mounting are arranged in the shell, a clamping groove is formed in the side edge of the shell, and positioning holes with studs on two sides of the shell can be fixed on the whole vehicle; the wiring harness and the connector are used for connecting the wiring harness of the whole vehicle. The utility model integrates the voice function and the noise reduction function on one circuit board, integrates the voice function and the noise reduction function, and realizes the integrated microphone with the voice noise reduction function.
Description
Technical Field
The utility model relates to a voice noise reduction microphone.
Background
Present mike product is mostly single microphone, realizes the speech recognition function, but when external noise is great, can influence speech recognition effect, for solving this problem, has designed a collection pronunciation and has fallen the microphone that the function as an organic whole of making an uproar.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a voice noise reduction microphone.
In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:
the utility model relates to a voice noise reduction microphone, which comprises: dust screen 1, upper cover 2, silica gel pad 3, circuit board 4, casing 5, pencil 6 and connector 7.
The dustproof net covers the top of the upper cover and is used for preventing external foreign matters from entering the product through the sound inlet hole of the upper cover to influence the sound receiving effect of the silicon microphone;
the upper cover is provided with a sound inlet hole of a sound transmission passage, a silica gel pad mounting positioning hole and a wiring harness assembling clamping groove;
the silica gel pad is assembled with the upper cover to seal the silica gel microphone;
the circuit board is placed in the casing, places 2 silicon microphones on the circuit board, and one is responsible for the pronunciation and gathers, and one is responsible for the noise and gathers, and two silicon microphones sound receiving hole interval is 40mm, and noise reduction processing is carried out to rethread circuit, realizes containing the integrative microphone of the function of making an uproar that falls of pronunciation.
A structure for positioning and supporting the circuit board and a clamping groove matched with the upper cover in mounting are arranged in the shell, a wire clamping groove is formed in the side edge of the shell, and positioning holes with studs on the two sides of the shell can be fixed on the whole vehicle;
the wiring harness and the connector are used for connecting the wiring harness of the whole vehicle;
the voice noise reduction microphone is mainly used in a vehicle.
The circuit board 4 comprises a noise reduction processing circuit and a voice acquisition circuit;
the noise reduction processing circuit includes: a silicon microphone MIC 1; capacitors C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11; resistors R1, R2, R3, R4, R5, R6, R7; inductances L1, L2, L3; diodes D1, D2, D3; triodes Q1, Q3; an output interface LT 1;
The voice acquisition circuit includes: a silicon microphone MIC 2; capacitors C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25; resistors R8, R9, R10, R11, R12, R13, R14, R15, R16; inductances L4, L5, L6; diodes D3, D4, D6; triodes Q2, Q4;
the other ends of the resistors R13, R14 and the capacitor C20 are respectively connected with one ends of capacitors C21, C23, C24 and C25, one end of an inductor L5 and a collector of the triode Q2;
one end of the resistor R15 is connected with the other end of the inductor L5, and the other end of the resistor R15 is connected with the cathode of the diode D6 and is connected with VCC in parallel; the other ends of the capacitors C23, C24 and C25 are connected with one end of an inductor L6 and grounded, the other end of the inductor L6 is connected with one end of a resistor R16, and the other end of the resistor R16 is connected with the anode of a diode D6 and grounded;
pin 4 of the silicon microphone MIC2 is connected with one end of capacitors C15 and C16, and the cathode of a diode D4 respectively; one end of the capacitor C17 is connected with the other end of the capacitor C16 and one end of the resistor R8 respectively; the other end of the capacitor C17 is connected with one end of a resistor R9, the other end of a resistor R10, one ends of capacitors C18 and C19, and the base electrodes of a triode Q4;
the other end of the capacitor C15 and the anode of the diode D4, and the other ends of the resistors R8 and R9 are respectively connected and grounded; the other end of the capacitor C19 is respectively connected with one end of a resistor R12, the other end of a capacitor C21, one end of a capacitor C22, a collector of a triode Q4 and a base of a triode Q2; the other end of the resistor R12, the other end of the capacitor C22 and the emitter of the transistor Q2 are connected with the ground.
The utility model has the beneficial effects that:
the voice function and the noise reduction function are integrated on one circuit board, the voice function and the noise reduction function are integrated, and the integrated microphone with the voice noise reduction function is realized.
Drawings
The utility model has the following drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an exploded view of the present invention.
FIG. 3 illustrates a noise reduction circuit on a circuit board of the present invention.
Fig. 4 is a circuit diagram of a voice acquisition circuit on a circuit board of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a speech noise reduction microphone according to the present invention includes: dust screen 1, upper cover 2, silica gel pad 3, circuit board 4, casing 5, pencil 6 and connector 7.
The dustproof net covers the top of the upper cover and is used for preventing external foreign matters from entering the product through the sound inlet hole of the upper cover to influence the sound receiving effect of the silicon microphone;
the upper cover is provided with a sound inlet hole of a sound transmission passage, a silica gel pad mounting positioning hole and a wiring harness assembling clamping groove;
the silica gel pad is assembled with the upper cover to seal the silica gel microphone;
the circuit board is placed in the casing, places 2 silicon microphones on the circuit board, and one is responsible for the pronunciation and gathers, and one is responsible for the noise collection, and two silicon microphones receive the sound hole interval and be 40mm, and the rethread circuit carries out the noise reduction and handles, realizes containing the integrative microphone of the function of making an uproar that makes an uproar that pronunciation fall.
A structure for positioning and supporting the circuit board and a clamping groove matched with the upper cover in mounting are arranged in the shell, a wire clamping groove is formed in the side edge of the shell, and positioning holes with studs on the two sides of the shell can be fixed on the whole vehicle;
the wiring harness and the connector are used for connecting the wiring harness of the whole vehicle;
the voice noise reduction microphone is mainly used in a vehicle;
the circuit board 4 comprises a noise reduction processing circuit and a voice acquisition circuit;
the noise reduction processing circuit includes: a silicon microphone MIC 1; capacitances C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11; resistors R1, R2, R3, R4, R5, R6, R7; inductances L1, L2, L3; diodes D1, D2, D3; triodes Q1, Q3; an output interface LT 1;
The voice acquisition circuit includes: a silicon microphone MIC 2; capacitors C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25; resistors R8, R9, R10, R11, R12, R13, R14, R15, R16; inductances L4, L5, L6; diodes D3, D4, D6; triodes Q2, Q4;
the other ends of the resistors R13, R14 and the capacitor C20 are respectively connected with one ends of capacitors C21, C23, C24 and C25, one end of an inductor L5 and a collector of the triode Q2;
one end of the resistor R15 is connected with the other end of the inductor L5, and the other end of the resistor R15 is connected with the cathode of the diode D6 and is connected with VCC in parallel; the other ends of the capacitors C23, C24 and C25 are connected with one end of an inductor L6 and grounded, the other end of the inductor L6 is connected with one end of a resistor R16, and the other end of the resistor R16 is connected with the anode of a diode D6 and grounded;
pin 4 of the silicon microphone MIC2 is connected with one end of capacitors C15 and C16, and the cathode of a diode D4 respectively; one end of the capacitor C17 is connected with the other end of the capacitor C16 and one end of the resistor R8 respectively; the other end of the capacitor C17 is connected with one end of a resistor R9, the other end of a resistor R10, one ends of capacitors C18 and C19, and the base electrodes of a triode Q4;
the other end of the capacitor C15 and the anode of the diode D4, and the other ends of the resistors R8 and R9 are respectively connected and grounded; the other end of the capacitor C19 is respectively connected with one end of a resistor R12, the other end of a capacitor C21, one end of a capacitor C22, a collector of a triode Q4 and a base of a triode Q2; the other end of the resistor R12, the other end of the capacitor C22 and the emitter of the transistor Q2 are connected with the ground.
The above embodiments are merely illustrative, and not restrictive, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the utility model, and therefore all equivalent technical solutions also belong to the scope of the utility model.
Those not described in detail in this specification are within the skill of the art.
Claims (7)
1. A speech noise reduction microphone, comprising: the dustproof screen comprises a dustproof screen (1), an upper cover (2), a silica gel pad (3), a circuit board (4), a shell (5), a wiring harness (6) and a connector assembly (7);
the dust screen (1) covers the top of the upper cover (2); the upper cover (2) is provided with a sound inlet hole of a sound transmission passage, a silica gel pad mounting positioning hole and a wiring harness assembling clamping groove; the silica gel pad (3) is assembled with the upper cover (2); the circuit board (4) is arranged in the shell (5), and 2 silicon microphones are arranged on the circuit board (4); a structure for positioning and supporting the circuit board (4) and a clamping groove matched with the upper cover (2) are arranged in the shell (5), a wire clamping groove is formed in the side edge, and stud positioning holes in the two sides of the shell (5) can be fixed on the whole vehicle;
2 silicon microphones placed on the circuit board (4), one is responsible for voice collection and one is responsible for noise collection, the pitch of the sound receiving holes of the two silicon microphones is 40mm, and then the circuit is used for noise reduction, so that the integrated microphone with the voice noise reduction function is realized.
2. The voice noise reduction microphone according to claim 1, wherein the dust screen (1) is used for preventing external foreign matters from entering the inside of the product through the sound inlet hole of the upper cover; the silica gel pad (3) has a sealing effect on the silicon wheat.
3. The voice noise reduction microphone according to claim 1, wherein the harness (6) and the connector (7) are used for connecting a vehicle harness.
4. The voice noise reduction microphone according to claim 1, characterized in that the circuit board (4) includes thereon a noise reduction processing circuit and a voice acquisition circuit.
5. The voice noise reduction microphone of claim 4, wherein the noise reduction processing circuit comprises: a silicon microphone MIC 1; capacitances C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11; resistors R1, R2, R3, R4, R5, R6, R7; inductances L1, L2, L3; diodes D1, D2, D3; triodes Q1, Q3; an output interface LT 1;
pin 1 of the silicon microphone MIC1 is connected with one end of a capacitor C1 and one end of an inductor L1 respectively, the other end of the inductor L1 is connected with one end of a resistor R1 respectively, the other end of a resistor R1 is connected with the anode of the capacitor C2 and one end of a resistor R2, and the other end of the capacitor C1 and the cathode of the capacitor C2 are connected with each other and grounded; the other end of the resistor R2 is connected with one end of resistors R5 and R7, one end of capacitors C7, C8, C9, C10 and C11, the cathode of the diode D2, one end of the inductor L2 and the emitter of the triode Q1 respectively;
pin 2 of the silicon microphone MIC1 is connected with the cathode of the diode D1, one end of the capacitor C3 and one end of the resistor R3 respectively; the other end of the resistor R3 is connected with one end of the capacitor C4 and one end of the resistor R4 respectively, and the other end of the resistor R4 is connected with one end of the capacitor C5; the other end of the capacitor C5 is connected with one end of the resistors R5 and R6, one end of the capacitors C6 and C7, and the base of the triode Q3; the collector of the triode Q3 is respectively connected with the resistor R7, one end of the capacitor C8, one end of the capacitor C9 and the base of the triode Q1;
pin 3 of the silicon microphone MIC1, the anode of a diode D1, the other ends of capacitors C3 and C4, the other end of a resistor R6, the other end of a capacitor C6, the emitter of a triode Q3, the collector of a triode Q1, the other ends of capacitors C10 and C11, the anode of a diode D2 and one end of an inductor L3 are respectively connected and grounded; the other ends of the inductors L2 and L3 are connected to pin 1 and pin 2 of the output interface LT1, respectively.
6. The voice noise reduction microphone of claim 4, wherein the voice acquisition circuit comprises: a silicon microphone MIC 2; capacitors C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25; resistors R8, R9, R10, R11, R12, R13, R14, R15, R16; inductances L4, L5, L6; diodes D3, D4, D6; triodes Q2, Q4;
pin 2 and pin 3 of the silicon microphone MIC2 are connected and grounded;
pin 1 of the silicon microphone MIC2 is connected with the cathode of a diode D3, one end of a capacitor C12 and one end of an inductor L4 respectively; the other end of the inductor L4 is connected with one ends of capacitors C13 and C14, and one ends of resistors R10 and R11 respectively; the anode of the diode D3 is connected with the other ends of the capacitors C12, C13 and C14 and grounded; the other end of the resistor R11 is connected with an emitter of the triode Q4, one end of the capacitor C18, one ends of the resistors R13 and R14 and one end of the capacitor C20 respectively;
the other ends of the resistors R13, R14 and the capacitor C20 are respectively connected with one ends of capacitors C21, C23, C24 and C25, one end of an inductor L5 and a collector of the triode Q2;
one end of the resistor R15 is connected with the other end of the inductor L5, and the other end of the resistor R15 is connected with the cathode of the diode D6 and is connected with VCC in parallel; the other ends of the capacitors C23, C24 and C25 are connected with one end of an inductor L6 and grounded, the other end of the inductor L6 is connected with one end of a resistor R16, and the other end of the resistor R16 is connected with the anode of a diode D6 and grounded;
pin 4 of the silicon microphone MIC2 is connected with one end of capacitors C15 and C16, and the cathode of a diode D4 respectively; one end of the capacitor C17 is connected with the other end of the capacitor C16 and one end of the resistor R8 respectively; the other end of the capacitor C17 is connected with one end of a resistor R9, the other end of a resistor R10, one ends of capacitors C18 and C19, and the base electrodes of a triode Q4;
the other end of the capacitor C15 is connected with the anode of the diode D4, and the other ends of the resistors R8 and R9 are respectively connected and grounded; the other end of the capacitor C19 is respectively connected with one end of a resistor R12, the other end of a capacitor C21, one end of a capacitor C22, a collector of a triode Q4 and a base of a triode Q2; the other end of the resistor R12, the other end of the capacitor C22 and the emitter of the transistor Q2 are connected with the ground.
7. The voice noise reduction microphone of claim 1, wherein the voice noise reduction microphone is used in a vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122009325.4U CN216873359U (en) | 2021-08-24 | 2021-08-24 | Microphone of making an uproar falls in pronunciation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122009325.4U CN216873359U (en) | 2021-08-24 | 2021-08-24 | Microphone of making an uproar falls in pronunciation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216873359U true CN216873359U (en) | 2022-07-01 |
Family
ID=82121084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122009325.4U Active CN216873359U (en) | 2021-08-24 | 2021-08-24 | Microphone of making an uproar falls in pronunciation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216873359U (en) |
-
2021
- 2021-08-24 CN CN202122009325.4U patent/CN216873359U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216873359U (en) | Microphone of making an uproar falls in pronunciation | |
| CN205123998U (en) | MEMS microphone and radio reception device | |
| CN204760020U (en) | Cell -phone TV program recognizer | |
| CN205754730U (en) | A kind of encapsulating structure of mike | |
| CN2814862Y (en) | Electret capacitor microphone | |
| CN209233998U (en) | A kind of dual-purpose high-fidelity sound pick-up of USB | |
| CN205105359U (en) | Cylindricality contact microphone | |
| CN207968875U (en) | A kind of buzzer loudspeaker multiplex circuit and sound-producing device | |
| CN219266913U (en) | Intelligent pen | |
| CN214959919U (en) | Microphone configuration structure of set top box and set top box | |
| CN212909993U (en) | Diversified pickup device | |
| CN208258006U (en) | A kind of electret capacitor microphone reducing noise | |
| CN205610927U (en) | Microphone module operatic tunes structure | |
| CN212230078U (en) | Enhanced pickup recording equipment | |
| CN201160322Y (en) | Dustproof microphone | |
| CN204652609U (en) | A kind of wireless microphone with better interference free performance | |
| CN209002159U (en) | A kind of gooseneck microphone using digital data transmission | |
| CN205179297U (en) | USB microphone | |
| CN215647353U (en) | Electret capacitor microphone | |
| CN214253199U (en) | Plug-and-play audio acquisition device | |
| CN216391326U (en) | Computer loudspeaker microphone with audio frequency jumping light | |
| CN218240703U (en) | Circuit for voice control and smart home equipment | |
| CN208797316U (en) | A kind of patchcord of convertible music style | |
| CN212696062U (en) | Intelligent law enforcement instrument device | |
| CN203521245U (en) | Sound box button structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |