CN202759588U - Pair piezoelectric bone conduction microphone - Google Patents
Pair piezoelectric bone conduction microphone Download PDFInfo
- Publication number
- CN202759588U CN202759588U CN201220425193.1U CN201220425193U CN202759588U CN 202759588 U CN202759588 U CN 202759588U CN 201220425193 U CN201220425193 U CN 201220425193U CN 202759588 U CN202759588 U CN 202759588U
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- China
- Prior art keywords
- amplifying circuit
- bone conduction
- circuit assembly
- conduction microphone
- pickup
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Abstract
The utility model discloses a microphone, and especially relates to a pair piezoelectric bone conduction microphone with wide range and abundant timbre; and comprises a watchcase, a vibration element and an amplification circuit component, the vibration element and the amplification circuit component are placed in the watchcase, the amplification circuit component and the inner wall of the watchcase are fixed, one end of the vibration is electrically connected to the amplification circuit component, and the vibration element comprises a high frequency pickup piezoelectric sheet and a low frequency pickup piezoelectric sheet. According to the pair piezoelectric bone conduction microphone, the high frequency pickup piezoelectric sheet and the low frequency pickup piezoelectric sheet are respectively responsible for a high frequency range and a low frequency range, Compared with an individual pickup piezoelectric sheet, the pair piezoelectric bone conduction microphone has the advantages of wide range and abundant timbre, and the dismounting is easy and the practicality is strong.
Description
Technical field
The utility model relates to a kind of microphone, particularly two bone conduction microphone of piezoelectric types.
Background technology
Bone-conduction microphone is exactly to utilize people's bone as the medium of conduct vibrations, only its vibration plane need to be adjacent to user's health such as denomination position, can directly import vocal cord vibration into bone-conduction microphone by skull.
At present, what do bone-conduction microphone in the communication apparatus such as mobile phone, intercom all is electromagnetic type bone conduction microphones, and such microphone volume is larger, and sensitivity is also lower.For the problems referred to above, national patent number is to disclose a kind of bone conduction microphone of piezoelectric type in 201120233372.0 the application documents, it comprises upper shell, lower house and Vibration pickup, Vibration pickup is positioned at lower house, also be provided with printed circuit assembly in the lower house, Vibration pickup one end is connected with printed circuit assembly, and the other end of Vibration pickup is provided with balancing weight; The bone conduction microphone of piezoelectric type of said structure has little, the highly sensitive advantage of volume, and it has solved the not enough point of electromagnetic type bone conduction microphone, but the structural design of its single Vibration pickup makes its range scope narrower, and lower tone.
The utility model content
The purpose of this utility model is to provide a kind of range broader in order to solve above-mentioned the deficiencies in the prior art, two bone conduction microphone of piezoelectric types that tonequality is more plentiful.
To achieve these goals, a kind of pair of bone conduction microphone of piezoelectric type that the utility model is designed, comprise watchcase, Vibration pickup and amplifying circuit assembly, Vibration pickup and amplifying circuit assembly all place in the watchcase, the inwall of amplifying circuit assembly and watchcase is fixed, one end of Vibration pickup is connected with the amplifying circuit electrical component, and described Vibration pickup comprises high frequency pickup piezoelectric patches and low frequency pickup piezoelectric patches.
Above-mentioned medium-high frequency pickup piezoelectric patches and low frequency pickup piezoelectric patches are prior art, can directly buy to obtain, so seldom be described in detail at this.
Described amplifying circuit assembly is the printed circuit board with amplifier.
In order to improve sensitivity of the present utility model, the pickup piezoelectric patches of high frequency described in the utility model and low frequency pickup piezoelectric patches all be connected with balancing weight away from amplifying circuit assembly end.
In order to promote practicality, be electrically connected with lead-in wire on the assembly of amplifying circuit described in the utility model, lead-in wire extends watchcase.
For easy disassembly, watchcase described in the utility model is comprised of upper shell and the lower house of mutual fastening, and high frequency pickup piezoelectric patches, low frequency pickup piezoelectric patches and amplifying circuit assembly all place in the lower house, and the inwall of amplifying circuit assembly and lower house is fixed.
Two bone conduction microphone of piezoelectric types that the utility model obtains, its high frequency pickup piezoelectric patches and low frequency pickup piezoelectric patches are responsible for respectively high frequency range and low frequency range, compare with the design of single pickup piezoelectric patches, range of the present utility model is broader, and tonequality is more plentiful; The utility model easy accessibility is practical simultaneously.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of the another kind of structure of the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1:
At the two bone conduction microphone of piezoelectric types described in Fig. 1, it comprises upper shell 1, lower house 2, high frequency pickup piezoelectric patches 5, low frequency pickup piezoelectric patches 4 and amplifying circuit assembly 3, upper shell 1 and lower house 2 fasten mutually, high frequency pickup piezoelectric patches 5, low frequency pickup piezoelectric patches 4 and amplifying circuit assembly 3 all place in the lower house 2, amplifying circuit assembly 3 is fixed with the inwall of lower house 2, one end of high frequency pickup piezoelectric patches 5 and low frequency pickup piezoelectric patches 4 all is electrically connected with amplifying circuit assembly 3, be fixed with lead-in wire 7 by the wire bonding agent on the described amplifying circuit assembly 3, lead-in wire 7 extends lower house 2.
Embodiment 2:
As shown in Figure 2, two bone conduction microphone of piezoelectric types that present embodiment provides, its general structure is consistent with embodiment 1, but in order to improve the sensitivity of present embodiment, the pickup of high frequency described in present embodiment piezoelectric patches 5 and low frequency pickup piezoelectric patches 4 all be connected with balancing weight 6 away from amplifying circuit assembly end.
Claims (9)
1. two bone conduction microphone of piezoelectric type, comprise watchcase, Vibration pickup and amplifying circuit assembly (3), Vibration pickup and amplifying circuit assembly (3) all place in the watchcase, amplifying circuit assembly (3) is fixed with the inwall of watchcase, one end of Vibration pickup is electrically connected with amplifying circuit assembly (3), it is characterized in that: described Vibration pickup comprises high frequency pickup piezoelectric patches (5) and low frequency pickup piezoelectric patches (4).
2. according to claim 1 pair of bone conduction microphone of piezoelectric type is characterized in that: described high frequency pickup piezoelectric patches (5) and low frequency pickup piezoelectric patches (4) all be connected with balancing weight (6) away from amplifying circuit assembly end.
3. according to claim 1 and 2 pair of bone conduction microphone of piezoelectric type is characterized in that: be electrically connected with lead-in wire (7) on the described amplifying circuit assembly (3), lead-in wire (7) extends watchcase.
4. according to claim 1 and 2 pair of bone conduction microphone of piezoelectric type, it is characterized in that: described watchcase is comprised of upper shell (1) and the lower house (2) of mutual fastening, high frequency pickup piezoelectric patches (5), low frequency pickup piezoelectric patches (4) and amplifying circuit assembly (3) all place in the lower house (2), and amplifying circuit assembly (3) is fixed with the inwall of lower house (2).
5. according to claim 3 pair of bone conduction microphone of piezoelectric type, it is characterized in that: described watchcase is comprised of upper shell (1) and the lower house (2) of mutual fastening, high frequency pickup piezoelectric patches (5), low frequency pickup piezoelectric patches (4) and amplifying circuit assembly (3) all place in the lower house (2), and amplifying circuit assembly (3) is fixed with the inwall of lower house (2).
6. according to claim 1 and 2 pair of bone conduction microphone of piezoelectric type is characterized in that: described amplifying circuit assembly (3) is the printed circuit board with amplifier.
7. according to claim 3 pair of bone conduction microphone of piezoelectric type is characterized in that: described amplifying circuit assembly (3) is the printed circuit board with amplifier.
8. according to claim 4 pair of bone conduction microphone of piezoelectric type is characterized in that: described amplifying circuit assembly (3) is the printed circuit board with amplifier.
9. according to claim 5 pair of bone conduction microphone of piezoelectric type is characterized in that: described amplifying circuit assembly (3) is the printed circuit board with amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220425193.1U CN202759588U (en) | 2012-08-27 | 2012-08-27 | Pair piezoelectric bone conduction microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220425193.1U CN202759588U (en) | 2012-08-27 | 2012-08-27 | Pair piezoelectric bone conduction microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759588U true CN202759588U (en) | 2013-02-27 |
Family
ID=47738745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220425193.1U Expired - Lifetime CN202759588U (en) | 2012-08-27 | 2012-08-27 | Pair piezoelectric bone conduction microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200481A (en) * | 2013-04-09 | 2013-07-10 | 苏州恒听电子有限公司 | Multi-unit bone conduction type earphone |
| CN104703104A (en) * | 2015-03-31 | 2015-06-10 | 歌尔声学股份有限公司 | Combined structure of piezoelectric receiver and ultrasonic generator |
-
2012
- 2012-08-27 CN CN201220425193.1U patent/CN202759588U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200481A (en) * | 2013-04-09 | 2013-07-10 | 苏州恒听电子有限公司 | Multi-unit bone conduction type earphone |
| CN104703104A (en) * | 2015-03-31 | 2015-06-10 | 歌尔声学股份有限公司 | Combined structure of piezoelectric receiver and ultrasonic generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |