CN2421788Y - Crystal indirect sound vibration type microphone - Google Patents

Crystal indirect sound vibration type microphone Download PDF

Info

Publication number
CN2421788Y
CN2421788Y CN 00236305 CN00236305U CN2421788Y CN 2421788 Y CN2421788 Y CN 2421788Y CN 00236305 CN00236305 CN 00236305 CN 00236305 U CN00236305 U CN 00236305U CN 2421788 Y CN2421788 Y CN 2421788Y
Authority
CN
China
Prior art keywords
metallic conduction
conduction sheet
crystal
sound
amplifying circuit
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.)
Expired - Fee Related
Application number
CN 00236305
Other languages
Chinese (zh)
Inventor
王健华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 00236305 priority Critical patent/CN2421788Y/en
Application granted granted Critical
Publication of CN2421788Y publication Critical patent/CN2421788Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

The utility model relates to a crystal indirect sound vibration type microphone which comprises a PC board amplifying circuit, and an upper metal conducting slice is arranged on a shim above a lower cover; an amplifying circuit board is additionally arranged on the upper metal conducting slice, wherein, the bottom of which is connected with a crystal piezoelectric slice which is tightly connected with another metal conducting slice on the bottom, and the a welding spot on the negative electrode of the upper metal conducting slice is led to a welding spot on the negative electrode of the amplifying circuit board. A welding spot on the positive electrode of a lower metal conducting slice is led to a welding spot on the positive electrode of the amplifying circuit board, and a sound isolating foamed cotton is arranged between the amplifying circuit board and an upper cover. The utility model can generate oscillation on skins when contacted with human bodies during sound production, and acoustic wave vibration can be indirectly conducted to a crystal piezoelectric substance through skins to generate voltage which is then converted into audio output, so the utility model can isolate most sound except sound producing people.

Description

The indirect acoustic shock type microphone of crystal
The utility model relates to transmitter, and concrete is the indirect acoustic shock type microphone of a kind of crystal.
Microphone is to accept acoustic vibration and be converted into the transmitter that acoustic signals is exported again, and existing microphone often is subjected to the interference of the background sound beyond the sounder sound.
The purpose of this utility model provides a kind of crystal piezoelectric substance that uses and accepts acoustic vibration indirectly and be converted into the microphone that acoustic signals is exported again, can produce on the skin of vibration when this microphone is affixed on the human body sounding, acoustic vibration conducts to crystal piezoelectric substance generation voltage indirectly through skin and is converted to audio frequency output again, and this microphone can be isolated the sound beyond most of sounder.
The purpose of this utility model is achieved in that
The indirect acoustic shock type microphone of a kind of crystal, comprise a PC plate amplifying circuit, it is characterized in that: there are a loam cake and a lower cover in its outside, skin subsides with lower cover and user are touched, a pad is put in the top of lower cover, in putting metallic conduction sheet on the pad, last metallic conduction sheet top adds a magnification circuit plate, and connect a crystal piezoelectric patches in last metallic conduction sheet below, another metallic conduction sheet is down connected airtight in crystal piezoelectric patches below, there is a negative pole solder joint to cause negative pole solder joint on the magnification circuit plate in last metallic conduction sheet, and have an anodal solder joint to cause anodal solder joint on the magnification circuit plate in following metallic conduction sheet, and between magnification circuit plate and loam cake, put a sound insulation foam, in order to withstand magnification circuit plate and sound insulation; Lower cover, pad, and following metallic conduction sheet between form a confined space, and being affixed on human body, lower cover can produce on the skin of vibration when the sounding, sonic vibration reaches lower cover via skin, vibrate the air in the confined space again, indirect transfer produces the living potential difference of sound press and forms acoustic signals to the crystal piezoelectric patches, conducts to the amplification of PC plate amplifying circuit via upper and lower metallic conduction sheet and acoustic signals is presented away again.
Wherein also can add the noise that foam or collodion filter high and low frequency between lower cover and following metallic conduction sheet, the function of desirable advance (shenglvehao)for another sheet of holding concurrently.
The utility model has following actively useful effect:
This product utilization acoustic wave energy transmits the characteristic that distance becomes how much inverse ratios with sound wave, use piezoelectric substance try one's best the skin vibrations of sounder, acoustic vibration to the crystal piezoelectric substance that conducts sounder indirectly by airtight air produces potential difference and exports acoustic signals again, so skin acoustic vibration position of the extremely close sounder of the crystal piezoelectric substance of microphone, and away from the background source of sound, (see through airtight air) institute absorbs the acoustic vibration of the acoustic vibration of sounder much larger than the absorption background sound indirectly, so can isolate the background sound of the overwhelming majority, only absorb sounder sound and constitute one, isolate or eliminate most background sources of sound, form a good microphone or a pick-up that not disturbed by background sound.
Now in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the utility model one embodiment.
Accompanying drawing number:
1. loam cake 2. lower covers 3. hollow pads
4. go up metallic conduction sheet negative pole solder joint on the metallic conduction sheet 41.
5. magnification circuit plate
51. the anodal solder joint of magnification circuit plate negative pole solder joint 52. magnification circuit plates
6. crystal piezoelectric patches
7. descend the anodal solder joint of 71. times metallic conduction sheets of metallic conduction sheet
8. sound insulation foam or Poly Foam
As shown in drawings, there are a loam cake 1 and a lower cover 2 in the microphone outside, skin subsides with lower cover and user are touched, a hollow pad 3 is put in the top of lower cover, in putting metallic conduction sheet 4 on the pad, last metallic conduction sheet top adds a magnification circuit plate 5, and connect a crystal piezoelectric patches 6 in last metallic conduction sheet below, another metallic conduction sheet 7 is down connected airtight in crystal piezoelectric patches below, and there is a negative pole solder joint 41 to cause negative pole solder joint 51 on the magnification circuit plate 5 in last metallic conduction sheet 4, and have an anodal solder joint 71 to cause anodal solder joint 52 on the magnification circuit plate 5 in following metallic conduction sheet 7, and in magnification circuit plate 5 and loam cake 1 storing, one sound insulation foam or Poly Foam 8 in order to withstand magnification circuit plate and to produce soundproof effect; Lower cover 2, hollow pad 3 and 7 of following metallic conduction sheets form a confined space, can produce on the skin of vibration when people's sounding and lower cover pasted to touch, sonic vibration reaches lower cover via skin, vibrate the air in the confined space again, indirect transfer produces the living potential difference of sound press and forms acoustic signals to the crystal piezoelectric patches, conducts to the amplification of PC plate amplifying circuit via upper and lower metallic conduction sheet and positive and negative electrode solder joint and acoustic signals is presented away again.It can produce potential difference when utilizing the crystal piezoelectric element to accept vibration pressure, and the acoustic vibration energy becomes the physical characteristic of how much inverse ratios with the transmission distance, can produce the skin of acoustic vibration when making the crystal piezoelectric element try one's best the health sounding, and utilize air indirectly conduction receive this vibration and give birth to voltage and be converted to sound signal output again.
Can put a sound insulation foam or a Poly Foam between the amplifying circuit PC plate of crystal piezoelectric element top and loam cake, and the crystal piezoelectric element is the skin of acoustic vibration during much larger than distance human body sounding apart from the background source of sound, so most vibration pressures that the crystal piezoelectric element is accepted come from sounder, so the background source of sound of the overwhelming majority can be isolated or eliminate to the design of this formula microphone.

Claims (2)

1. indirect acoustic shock type microphone of crystal, comprise a PC plate amplifying circuit, it is characterized in that: there are a loam cake and a lower cover in its outside, skin subsides with lower cover and user are touched, a pad is put in the top of lower cover, in putting metallic conduction sheet on the pad, last metallic conduction sheet top adds a magnification circuit plate, and connect a crystal piezoelectric patches in last metallic conduction sheet below, another metallic conduction sheet is down connected airtight in crystal piezoelectric patches below, there is a negative pole solder joint to cause negative pole solder joint on the magnification circuit plate in last metallic conduction sheet, and have an anodal solder joint to cause anodal solder joint on the magnification circuit plate, and between magnification circuit plate and loam cake, put one in order to withstand the sound insulation foam of magnification circuit plate and sound insulation in following metallic conduction sheet.
2. the indirect acoustic shock type microphone of crystal as claimed in claim 1 is characterized in that: wherein also can add the noise that foam or collodion filter high and low frequency between lower cover and following metallic conduction sheet, the function of desirable advance (shenglvehao)for another sheet of holding concurrently.
CN 00236305 2000-05-23 2000-05-23 Crystal indirect sound vibration type microphone Expired - Fee Related CN2421788Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00236305 CN2421788Y (en) 2000-05-23 2000-05-23 Crystal indirect sound vibration type microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00236305 CN2421788Y (en) 2000-05-23 2000-05-23 Crystal indirect sound vibration type microphone

Publications (1)

Publication Number Publication Date
CN2421788Y true CN2421788Y (en) 2001-02-28

Family

ID=33597867

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00236305 Expired - Fee Related CN2421788Y (en) 2000-05-23 2000-05-23 Crystal indirect sound vibration type microphone

Country Status (1)

Country Link
CN (1) CN2421788Y (en)

Similar Documents

Publication Publication Date Title
CN205793159U (en) A kind of moving-coil and piezoelectricity Integral earphone
CN208445736U (en) A kind of guitar band tuning piezoelectric type plate speaker pickup apparatus
CN110300362B (en) Electret bone conduction vibration microphone
CN204887464U (en) Anti low frequency noise's microphone monomer
CN2421788Y (en) Crystal indirect sound vibration type microphone
CN205987287U (en) Novel sound cavity structure earphone
CN102196344B (en) Pickup device and electronic device using same
CN105025422B (en) vibration sounding structure and terminal
CN202135298U (en) Bass enhanced sound box
CN201667714U (en) Piezoelectric type loudspeaker
CN208570088U (en) A kind of piezoelectric buzzer
CN201270584Y (en) Composite piezoelectric loudspeaker
CN208863046U (en) A kind of earphone front cover device with noise reduction microphone call function
CN201608865U (en) Low frequency effect enhancing device of sound box
CN207075084U (en) Loudspeaker enclosure
CN207624370U (en) Acoustics musical instrument primary sound and electronic signal converting transmission system
CN202364372U (en) Piezoelectric ceramic loudspeaker with resonant chamber
CN202104490U (en) Tabletop capable of producing sound
CN206728289U (en) Piezoelectric film sound pick-up
CN220087432U (en) Cushion with bluetooth speaker function
CN2446741Y (en) Improved skin contact piezoelectric mic
CN211378208U (en) Microphone integrated sound box
CN204836573U (en) High -fidelity speaker
RU162363U1 (en) DEVICE FOR ELECTRONIC AUSCULTATION
CN202395982U (en) One-way electret capacitor microphone for computer headset

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