CN202003671U - Piezoelectric active buzzer - Google Patents
Piezoelectric active buzzer Download PDFInfo
- Publication number
- CN202003671U CN202003671U CN2011200092556U CN201120009255U CN202003671U CN 202003671 U CN202003671 U CN 202003671U CN 2011200092556 U CN2011200092556 U CN 2011200092556U CN 201120009255 U CN201120009255 U CN 201120009255U CN 202003671 U CN202003671 U CN 202003671U
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- CN
- China
- Prior art keywords
- circuit
- shell
- hummer
- pcb
- piezoelectric active
- 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
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- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The utility model discloses a piezoelectric active buzzer, which comprises a shell (1), a buzzing piece (2) arranged at the upper part in the shell (1), a closing ring (3) arranged at the lower part in the shell (1), a PCB (4) arranged on the closing ring (3), a circuit for controlling the starting of oscillation of the buzzer and arranged on the PCB, and a spring plate (5) arranged on the PCB (4) and at the side being close to the buzzing piece (2), wherein the circuit is a multi-resonant oscillation circuit, and the material of the shell (1) and the closing ring (3) is plastic. The piezoelectric active buzzer has beneficial effects that automation production is realized, production efficiency is high, product performance is stable, cost is low, and popularization and application are favorable.
Description
Technical field
The utility model relates to a kind of hummer.
Background technology
The active hummer of traditional piezoelectricity adopts the self-sustained oscillation principle of piezoelectric ceramics to make, and promptly needs to adopt the auto-excitation type piezo, unstable properties, and relatively simple for structure, cost is also low, but the self-oscillatory way of this piezoelectricity is difficult to realize robotization.Because cost of labor rises steadily in recent years, has strengthened the cost of the active hummer of piezoelectricity.In addition, the structure of the active hummer of conventional piezoelectric also has the hidden danger of not starting of oscillation, and higher to the quality requirements of piezoelectric ceramics, the quality quality of electroceramics has determined the performance of whole hummer.
Summary of the invention
At the shortcoming of the active hummer of existing piezoelectricity, the utility model provides a kind of novel piezoelectricity active hummer.
To achieve these goals, the measure taked of the utility model:
The active hummer of a kind of piezoelectricity comprises housing, and enclosure interior is by being provided with piezo, and described enclosure interior is by having collar, and collar is provided with pcb board, and pcb board is provided with the circuit of control hummer starting of oscillation, and pcb board is provided with shell fragment near piezo one side.
Described circuit is a multi-resonant oscillating circuit.
The material of described housing and collar is plastics.
The beneficial effects of the utility model: realize automated production, the production efficiency height, properties of product are stable, and cost is low, is beneficial to apply.
Description of drawings
Fig. 1, structural representation of the present utility model;
Fig. 2, the pcb board circuit diagram before improving;
Fig. 3, Fig. 4 are respectively the pcb board circuit diagram after the improvement;
Embodiment
The active hummer of a kind of piezoelectricity, comprise housing 1, housing 1 is inner by being provided with piezo 2, housing 1 is inner by having collar 3, collar 3 is provided with the circuit of control hummer starting of oscillation, described circuit is a multi-resonant oscillating circuit, changes original auto-excitation type piezo self-sustained oscillation into the circuit starting of oscillation, and pcb board 4 is provided with shell fragment 5 near piezo 2 one sides.After the improvement, piezo with mould the shell binding site at periphery, can realize that robotization plays glue and assembling, piezo and PCB circuit turn-on are taked the shell fragment contact structures, do not need artificial welding, can realize robotization.The material of described housing 1 and collar 3 is plastics, and simple in structure, cost is low.The beneficial effects of the utility model: realize automated production, the production efficiency height, properties of product are stable, and cost is low, is beneficial to apply.
Those skilled in the art's simple change and replacement all are within the protection domain of the present utility model in this area.
Claims (3)
1. active hummer of piezoelectricity, comprise housing (1), housing (1) is inner by being provided with piezo (2), it is characterized in that, described housing (1) is inner by having collar (3), collar (3) is provided with pcb board (4), and pcb board is provided with the circuit of control hummer starting of oscillation, and pcb board (4) is provided with shell fragment (5) near piezo (2) one sides.
2. the active hummer of a kind of piezoelectricity according to claim 1 is characterized in that described circuit is a multi-resonant oscillating circuit.
3. the active hummer of a kind of piezoelectricity according to claim 1 and 2 is characterized in that, the material of described housing (1) and collar (3) is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200092556U CN202003671U (en) | 2011-01-13 | 2011-01-13 | Piezoelectric active buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200092556U CN202003671U (en) | 2011-01-13 | 2011-01-13 | Piezoelectric active buzzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003671U true CN202003671U (en) | 2011-10-05 |
Family
ID=44706403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200092556U Expired - Fee Related CN202003671U (en) | 2011-01-13 | 2011-01-13 | Piezoelectric active buzzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202003671U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505076A (en) * | 2014-11-28 | 2015-04-08 | 常州超音电子有限公司 | Patch type buzzer |
| WO2015135274A1 (en) * | 2014-03-13 | 2015-09-17 | 广州市番禺奥迪威电子有限公司 | Low frequency buzzer |
-
2011
- 2011-01-13 CN CN2011200092556U patent/CN202003671U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135274A1 (en) * | 2014-03-13 | 2015-09-17 | 广州市番禺奥迪威电子有限公司 | Low frequency buzzer |
| CN104505076A (en) * | 2014-11-28 | 2015-04-08 | 常州超音电子有限公司 | Patch type buzzer |
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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: 20111005 Termination date: 20140113 |