CN202135308U - Bone conduction microphone of piezoelectric type - Google Patents
Bone conduction microphone of piezoelectric type Download PDFInfo
- Publication number
- CN202135308U CN202135308U CN201120233372U CN201120233372U CN202135308U CN 202135308 U CN202135308 U CN 202135308U CN 201120233372 U CN201120233372 U CN 201120233372U CN 201120233372 U CN201120233372 U CN 201120233372U CN 202135308 U CN202135308 U CN 202135308U
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- CN
- China
- Prior art keywords
- conduction microphone
- pick
- printed circuit
- circuit assembly
- bone conduction
- 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 - Lifetime
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- Telephone Set Structure (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
The utility model discloses a bone conduction microphone of piezoelectric type, comprising an upper housing, a lower housing and a vibration pick-up element. The upper housing is cooperated with the lower housing; and the vibration pick-up element is arranged in the lower housing. The bone conduction microphone of piezoelectric type is characterized in that a printed circuit assembly is arranged in the lower housing; an end of the vibration pick-up element is connected with the printed circuit assembly; and the other end of the vibration pick-up element is provided with a counterweight block. According to the utility model, the vibration pick-up element is cooperated with the counterweight block to increase the sensitivity; the printed circuit assembly is arranged to amplify an output signal; and the volume of the bone conduction microphone is reduced, under the prerequisite of the requirement of communication equipment such as a cellphone and an interphone being satisfied by an output level of the bone conduction microphone.
Description
Technical field
The utility model relates to a kind of microphone, particularly the piezoelectric type bone-conduction microphone.
Background technology
Bone-conduction microphone is exactly to utilize the medium of people's bone as conduct vibrations, only needs its vibration plane is adjacent to user's health such as cheek position, can directly import vocal cord vibration into bone-conduction microphone through skull.
At present, what in communication apparatus such as mobile phone, intercom, do bone-conduction microphone all is electromagnetic type bone conduction microphones, and such microphone volume is bigger, and sensitivity is also lower, and it is intelligent not meet present communication apparatus, the development trend of lighting.
The utility model content
The purpose of the utility model is to provide a kind of volume little, highly sensitive piezoelectric type bone-conduction microphone for the deficiency that solves above-mentioned prior art.
To achieve these goals; The piezoelectric type bone-conduction microphone that the utility model designed comprises upper shell, lower house and pick-up element, and upper shell cooperates with lower house; The pick-up element is positioned at lower house; It is characterized in that being provided with in the lower house printed circuit assembly, pick-up element one end is connected with printed circuit assembly, and the pick-up element other end is provided with balancing weight.Pick-up element in the utility model cooperates balancing weight to improve sensitivity; And printed circuit assembly is set the output signal is amplified, the output level that makes the utility model has reduced the volume of himself under the prerequisite that communication apparatus such as satisfying mobile phone, intercom requires.
As preferably, said pick-up element is a piezoelectric ceramic piece, and said piezoelectric ceramic piece is a strip.Should preferably cooperate and farthest to improve sensitivity and reduce volume with printed circuit assembly and balancing weight.
On printed circuit assembly, be connected with lead-in wire, the other end of lead-in wire extends lower house.
The piezoelectric type bone-conduction microphone that the utility model obtains, its pick-up element cooperate balancing weight to improve sensitivity; And printed circuit assembly is set the output signal is amplified, the output level that makes the utility model has reduced the volume of himself under the prerequisite that communication apparatus such as satisfying mobile phone, intercom requires.
Description of drawings
Fig. 1 is the overall structure sketch map of embodiment 1;
Fig. 2 is the overall structure cutaway view of embodiment 1.
Among the figure: lower house 1, upper shell 2, pick-up element 3, printed circuit assembly 4, balancing weight 5, lead-in wire 6.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Embodiment 1:
Like Fig. 1, shown in Figure 2; The piezoelectric type bone-conduction microphone that the utility model provides comprises upper shell 1, lower house 2 and pick-up element 3, and upper shell 1 covers on lower house 2; Pick-up element 3 is positioned at lower house 1; Lower house 1 internal fixation is equipped with printed circuit assembly 4, and pick-up element 3 one ends are connected with printed circuit assembly 4, is fixed with balancing weight 5 on pick-up element 3 other ends.
In the specific implementation, said pick-up element 3 is a piezoelectric ceramic piece, and said piezoelectric ceramic piece is a strip.Strip piezoelectric ceramic piece solder flux is to printed circuit assembly 4; The printed circuit assembly 4 that welds the strip piezoelectric ceramic piece is bonded in the lower house 1; Balancing weight 5 is bonded to the other end of strip piezoelectric ceramic piece; Welding lead 6 on printed circuit assembly 4 again, 6 other ends that go between extend described lower house 1, cover housing 2 at last.
Pick-up element 3 in the utility model cooperates balancing weight 5 to improve sensitivity; And 4 pairs of output of printed circuit assembly signal is set amplifies, the output level that makes the utility model has reduced the volume of himself under the prerequisite that communication apparatus such as satisfying mobile phone, intercom requires.
Claims (3)
1. piezoelectric type bone-conduction microphone; Comprise upper shell (1), lower house (2) and pick-up element (3); Upper shell (2) cooperates with lower house (1), and pick-up element (3) is positioned at lower house (1), it is characterized in that being provided with in the lower house (1) printed circuit assembly (4); Pick-up element (3) one ends are connected with printed circuit assembly (4), and pick-up element (3) other end is provided with balancing weight (5).
2. piezoelectric type bone-conduction microphone according to claim 1 is characterized in that said pick-up element (3) is a piezoelectric ceramic piece, and said piezoelectric ceramic piece is a strip.
3. piezoelectric type bone-conduction microphone according to claim 1 and 2 is characterized in that on printed circuit assembly (4), being connected with lead-in wire (6), and the other end of lead-in wire (6) extends lower house (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120233372U CN202135308U (en) | 2011-07-01 | 2011-07-01 | Bone conduction microphone of piezoelectric type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120233372U CN202135308U (en) | 2011-07-01 | 2011-07-01 | Bone conduction microphone of piezoelectric type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202135308U true CN202135308U (en) | 2012-02-01 |
Family
ID=45524064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120233372U Expired - Lifetime CN202135308U (en) | 2011-07-01 | 2011-07-01 | Bone conduction microphone of piezoelectric type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202135308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533479A (en) * | 2013-10-28 | 2014-01-22 | 西安康弘新材料科技有限公司 | Piezoceramic bone-conduction oscillator mounting structure in bone-conduction Bluetooth headset |
| CN103873996A (en) * | 2014-03-27 | 2014-06-18 | 深圳市中兴移动通信有限公司 | Mobile terminal |
-
2011
- 2011-07-01 CN CN201120233372U patent/CN202135308U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533479A (en) * | 2013-10-28 | 2014-01-22 | 西安康弘新材料科技有限公司 | Piezoceramic bone-conduction oscillator mounting structure in bone-conduction Bluetooth headset |
| CN103873996A (en) * | 2014-03-27 | 2014-06-18 | 深圳市中兴移动通信有限公司 | Mobile terminal |
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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: 20120201 |