CN201262827Y - Piezoelectric sound generator - Google Patents
Piezoelectric sound generator Download PDFInfo
- Publication number
- CN201262827Y CN201262827Y CNU2008201858448U CN200820185844U CN201262827Y CN 201262827 Y CN201262827 Y CN 201262827Y CN U2008201858448 U CNU2008201858448 U CN U2008201858448U CN 200820185844 U CN200820185844 U CN 200820185844U CN 201262827 Y CN201262827 Y CN 201262827Y
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- generator
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- piezo
- electric type
- driving circuit
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Abstract
The utility model relates to a piezoelectric-typed acoustic generator, comprising a boost circuit, a signal generator, a drive circuit and the piezoelectric-typed acoustic generator; the high voltage output terminal of the boost circuit is connected with the power supply input terminal of the drive circuit, the signal output terminal of the signal generator is connected with the signal source input terminal of the drive circuit, and the output terminal of the drive circuit is connected with the piezoelectric-typed acoustic generator. The boost circuit and the power supply input terminal of the signal generator are connected with a direct current power supply of 12 to 14V. In the piezoelectric-typed acoustic generator, the audio signal output by the signal generator is sent to the drive circuit directly, and corresponding sound is output by the piezoelectric-typed acoustic generator driven by the drive circuit, and therefore, an electromagnetic coil and a vibrating diaphragm are not needed, thus reducing the volume of a horn and reducing the energy consumption and the production cost.
Description
Technical field
The utility model relates to a kind of piezo-electric type acoustical generator.
Background technology
The electric horn of existing automobile, motorcycle, power assist vehicle, bicycle all is an electromagnetism class vibration membrane type structure, and the loudspeaker sound is big, and power consumption is big.Because oscillatory circuit adopts breaker point, easily burn the contact under the big electric current, make poor contact of contacts, cause sound get out of tune, hoarse and damage the failure rate height.And existing contactless automobile electronic horn, be to adopt electronic switch, audio-frequency generator, sounding diaphragm to form, its principle is the solenoid of making a gift to someone after the sound signal of different purposes is amplified by high power amplifier, produce alternating magnetic field by solenoid and drive the diaphragm sounding, because it still adopts solenoid and vibrating membrane, the cost of manufacture height, the voltage general context is wideless, volume is big, and power consumption is big.
The utility model content
Technical problem to be solved in the utility model provides a kind of piezo-electric type acoustical generator that does not adopt solenoid and vibrating membrane.
For solving the problems of the technologies described above, the utility model provides a kind of piezo-electric type acoustical generator, comprising: booster circuit, signal generator, driving circuit and piezo-electric type acoustical generator; The high-voltage output end of booster circuit connects the power input of driving circuit, and the signal output part of signal generator connects the signal source input end of driving circuit, the output termination piezo-electric type acoustical generator of driving circuit.
The power input of described booster circuit and signal generator connects the direct supply of 12-14V.
As another kind of piezo-electric type acoustical generator, be characterized in comprising: signal source, driving circuit, audio frequency transformation stepup transformer and piezo-electric type acoustical generator; The power input of described signal source connects the direct supply of 12-14V, the signal output part of signal source connects the signal source input end of driving circuit, the input end of the output ending connecting audio transformation stepup transformer of driving circuit, the output termination piezo-electric type acoustical generator of audio frequency transformation stepup transformer.
The utlity model has positive effect: in (1) piezo-electric type acoustical generator of the present utility model, the sound signal of signal generator output is directly delivered to driving circuit, and drive the piezo-electric type acoustical generator by driving circuit and export corresponding sound, so need not to adopt solenoid and vibrating membrane, thereby the volume that has reduced loudspeaker is big, has reduced its power consumption and production cost.(2) in the piezo-electric type acoustical generator of the present utility model, the sound signal of signal source output is directly delivered to driving circuit, control piezo-electric type acoustical generator sounding after audio frequency transformation stepup transformer boosts, so need not to adopt solenoid and vibrating membrane, thereby the volume that has reduced loudspeaker is big, has reduced its power consumption and production cost.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the circuit block diagram of the piezo-electric type acoustical generator of embodiment 1;
Fig. 2 is the circuit block diagram of the piezo-electric type acoustical generator of embodiment 2.
Embodiment
(embodiment 1)
See Fig. 1, the piezo-electric type acoustical generator of present embodiment comprises: booster circuit 1, signal generator 2, driving circuit 3 and piezo-electric type acoustical generator 4; The high-voltage output end of booster circuit 1 connects the power input of driving circuit 3, and the signal output part of signal generator 2 connects the signal source input end of driving circuit 3, the output termination piezo-electric type acoustical generator 4 of driving circuit 3.
The power input of described booster circuit 1 and signal generator 2 connects the direct supply of 12-14V.
(embodiment 2)
See Fig. 2, the piezo-electric type acoustical generator of present embodiment comprises: signal source 5, driving circuit 3, audio frequency transformation stepup transformer 6 and piezo-electric type acoustical generator 4; The power input of described signal source 5 connects the direct supply of 12-14V, the signal output part of signal source 5 connects the signal source input end of driving circuit 3, the input end of the output ending connecting audio transformation stepup transformer 6 of driving circuit 3, the output termination piezo-electric type acoustical generator 4 of audio frequency transformation stepup transformer 6.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (3)
1, a kind of piezo-electric type acoustical generator is characterized in that comprising: booster circuit (1), signal generator (2), driving circuit (3) and piezo-electric type acoustical generator (4); The high-voltage output end of booster circuit (1) connects the power input of driving circuit (3), and the signal output part of signal generator (2) connects the signal source input end of driving circuit (3), the output termination piezo-electric type acoustical generator (4) of driving circuit (3).
2, piezo-electric type acoustical generator according to claim 1 is characterized in that: the power input of described booster circuit (1) and signal generator (2) connects the direct supply of 12-14V.
3, a kind of piezo-electric type acoustical generator is characterized in that comprising: signal source (5), driving circuit (3), audio frequency transformation stepup transformer (6) and piezo-electric type acoustical generator (4); The power input of described signal source (5) connects the direct supply of 12-14V, the signal output part of signal source (5) connects the signal source input end of driving circuit (3), the input end of the output ending connecting audio transformation stepup transformer (6) of driving circuit (3), the output termination piezo-electric type acoustical generator (4) of audio frequency transformation stepup transformer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201858448U CN201262827Y (en) | 2008-09-19 | 2008-09-19 | Piezoelectric sound generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201858448U CN201262827Y (en) | 2008-09-19 | 2008-09-19 | Piezoelectric sound generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262827Y true CN201262827Y (en) | 2009-06-24 |
Family
ID=40809303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201858448U Expired - Fee Related CN201262827Y (en) | 2008-09-19 | 2008-09-19 | Piezoelectric sound generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262827Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407579A (en) * | 2018-10-16 | 2019-03-01 | 浩云科技股份有限公司 | A kind of independent sound wave algorithm control circuit |
-
2008
- 2008-09-19 CN CNU2008201858448U patent/CN201262827Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407579A (en) * | 2018-10-16 | 2019-03-01 | 浩云科技股份有限公司 | A kind of independent sound wave algorithm control circuit |
| CN109407579B (en) * | 2018-10-16 | 2021-06-01 | 浩云科技股份有限公司 | Independent sound wave algorithm control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20120919 |