CN202049999U - Piezoelectric ceramic-based driver device - Google Patents
Piezoelectric ceramic-based driver device Download PDFInfo
- Publication number
- CN202049999U CN202049999U CN201120119771.4U CN201120119771U CN202049999U CN 202049999 U CN202049999 U CN 202049999U CN 201120119771 U CN201120119771 U CN 201120119771U CN 202049999 U CN202049999 U CN 202049999U
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- CN
- China
- Prior art keywords
- piezoelectric ceramic
- dish spring
- driver device
- piezoelectric
- metallic gasket
- Prior art date
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- Expired - Fee Related
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- 239000000919 ceramic Substances 0.000 title claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000004806 packaging method and process Methods 0.000 abstract description 6
- 238000003491 array Methods 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model provides a piezoelectric ceramic-based driver device. The device can accurately set the prestress applied on piezoelectric ceramic and enhance the displacement restoration property of the driver device. The piezoelectric ceramic-based driver device comprises a packaging shell, a disc spring, metal gaskets and piezoelectric ceramics. A through hole is arranged in the packaging shell and internally and sequentially provided with the disc spring and the piezoelectric ceramics, a metal gasket I is arranged between the disc spring and the shell, and a metal gasket II is arranged between the disc spring and the piezoelectric ceramics. The piezoelectric ceramic-based driver device can more accurately control the prestress applied during packaging of the piezoelectric ceramics, is especially applicable to packaging of piezoelectric ceramic arrays, can enhance the prestress consistency of the piezoelectric ceramics in the array, is good in the restoration property after voltage return and is simple and feasible in the packaging operation.
Description
Technical field
The utility model belongs to accurate control field, is specifically related to a kind of drive assembly based on piezoelectric ceramic, is particularly useful for the encapsulation of drive array.
Background technology
Piezoelectric ceramic is because piezoelectric effect and back wash effect become a kind of material that becomes more and more important in precision optical machinery and the electronic device manufacturing.Chinese patent literature (the patent No.: CN1145990A) disclose the patented technology that a kind of name is called " structure of the drive unit of unit for ultrasound sealing ", this patented technology provides a kind of Drive Structure of the unit for ultrasound sealing based on piezoelectric ceramic, this structure as required chosen material, adjust size to reach predetermined amplitude.Because the material mixture ratio of piezoelectric ceramic and manufacture craft is different, its response characteristic is also inconsistent, and a kind of rational piezoelectric ceramic encapsulating structure can significantly improve the serviceability based on the drive unit of piezoelectric ceramic.Because the stretching, extension performance of piezoelectric ceramic is better than its shrinkage, so the piezoelectric ceramic encapsulation need apply a precompression.At present, the loading of precompression is to apply by securing member is fastening, and the big or small armrest sense judgement of precompression or torque-indicating wrencg assessment exist not enough on accuracy and the operation simplification.In addition, may there be the displacement halfway phenomenon that resets in piezoelectric ceramic after applying voltage moves back zero, influence its actual serviceability.
Summary of the invention
The purpose of this utility model provides a kind of drive assembly based on piezoelectric ceramic, and described drive assembly can design precompression as required in advance, and makes whole driver have good displacement reseting performance.
The technical scheme that the utility model technical solution problem is adopted is: a kind of drive assembly based on piezoelectric ceramic is characterized in that described drive assembly comprises encapsulating housing, metallic gasket I, dish spring, metallic gasket II, piezoelectric ceramic.In described encapsulating housing, have through hole, in through hole, be disposed with dish spring, piezoelectric ceramic, be provided with the metallic gasket I between dish spring and the housing, be provided with the metallic gasket II between dish spring and the piezoelectric ceramic.Described piezoelectric ceramic two sides metal-plated membrane, metal film links to each other with external power supply.Dish spring and piezoelectric ceramic are the commercially available prod, elastic force-displacement response curve and the required precompression that applies according to the dish spring that provides in the product information, the space length that can in through hole, be reserved for installation dish spring, thus the reduction length of accurately controlling the dish spring obtains required precompression.A slice metallic gasket is installed so that pressure is even respectively at dish spring two ends, protection packaging housing and piezoelectric ceramic.After voltage that piezoelectric ceramic applies moved back zero, piezoelectric ceramic forced down at the elastic pressure of dish spring, realizes its displacement recovery function well.This drive assembly prestressing force loading consistency is strong, especially is suitable for the encapsulation of piezoelectric ceramic array.Encapsulating housing wherein two sides does not seal, and installation and the outer of circuitry lines of being convenient to piezoelectric ceramic, dish spring and metallic gasket connect.
The beneficial effects of the utility model are, it is more accurate to the control of applying precompression when piezoelectric ceramic encapsulates, be particularly useful for the encapsulation of piezoelectric ceramic array, the consistency of the suffered precompression of each piezoelectric ceramic is strengthened in the array, its reseting performance is good after moving back voltage, and encapsulation operation is simple.
Description of drawings
Fig. 1 is the perspective view of a kind of drive assembly based on piezoelectric ceramic of the present utility model.
Fig. 2 is the cross-sectional view of a kind of drive assembly based on piezoelectric ceramic of the utility model.
Among the figure, 1. encapsulating housing 2. metallic gasket I 3. dish springs 4. metallic gasket II 5. piezoelectric ceramic.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the perspective view of a kind of drive assembly based on piezoelectric ceramic of the present utility model, and Fig. 2 is the cross-sectional view of a kind of drive assembly based on piezoelectric ceramic of the utility model.In Fig. 1 ~ 2, a kind of drive assembly based on piezoelectric ceramic of the present utility model comprises encapsulating housing 1, metallic gasket I 2, dish spring 3, metallic gasket II 4, piezoelectric ceramic 5.In described encapsulating housing 1, have through hole, in through hole, be disposed with dish spring 3, piezoelectric ceramic 5, be provided with metallic gasket I 2 between dish spring 3 and the housing 1, be provided with metallic gasket II 4 between dish spring 3 and the piezoelectric ceramic 5.Described piezoelectric ceramic 5 two sides metal-plated membranes, metal film links to each other with external power supply.Dish spring 3 acts on housing 1 mutually by metallic gasket I 2, and dish spring 3 acts on piezoelectric ceramic 5 mutually by metallic gasket II 4, and metallic gasket I 2, metallic gasket II 4 play protection housing and piezoelectric ceramic respectively.The dish spring is the commercially available prod, elastic force-displacement response curve and the required precompression that applies according to the dish spring that provides in the product information, the space length that can in through hole, be reserved for installation dish spring, thus the reduction length of accurately controlling the dish spring obtains required precompression.Encapsulating housing material therefor and shell wall are thick can be selected according to user demand.The housing two sides is not sealed, and convenient piezoelectric ceramic, dish spring and the circuitry lines of installing connects.In use, earlier add a bias voltage to piezoelectric ceramic, with this moment piezoelectric ceramic length be benchmark, when additionally adding positive voltage, the piezoelectric ceramic elongation; When adding negative voltage, piezoelectric ceramic shortens.When removing voltage, because the elastic pressure of dish spring drives, original position is got back in the displacement of piezoelectric ceramic.
Claims (2)
1. drive assembly based on piezoelectric ceramic, it is characterized in that: described drive assembly comprises encapsulating housing (1), metallic gasket I (2), dish spring (3), metallic gasket II (4), piezoelectric ceramic (5); In described encapsulating housing (1), have through hole, in through hole, be disposed with dish spring (3), piezoelectric ceramic (5), be provided with metallic gasket I (2) between dish spring (3) and the housing (1), be provided with metallic gasket II (4) between dish spring (3) and the piezoelectric ceramic (5).
2. a kind of drive assembly based on piezoelectric ceramic according to claim 1 is characterized in that: described piezoelectric ceramic (5) two sides metal-plated membrane, metal film links to each other with external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120119771.4U CN202049999U (en) | 2011-04-22 | 2011-04-22 | Piezoelectric ceramic-based driver device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120119771.4U CN202049999U (en) | 2011-04-22 | 2011-04-22 | Piezoelectric ceramic-based driver device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202049999U true CN202049999U (en) | 2011-11-23 |
Family
ID=44990296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120119771.4U Expired - Fee Related CN202049999U (en) | 2011-04-22 | 2011-04-22 | Piezoelectric ceramic-based driver device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202049999U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973624A (en) * | 2016-05-03 | 2016-09-28 | 清华大学 | High-frequency loading device with loading force adjusted and measured in real time |
| CN106526240A (en) * | 2016-12-20 | 2017-03-22 | 济南大学 | In-situ loading device based on scanning electron microscope |
| CN106526241A (en) * | 2016-12-20 | 2017-03-22 | 济南大学 | In-situ loading device based on scanning electron microscope |
-
2011
- 2011-04-22 CN CN201120119771.4U patent/CN202049999U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973624A (en) * | 2016-05-03 | 2016-09-28 | 清华大学 | High-frequency loading device with loading force adjusted and measured in real time |
| CN105973624B (en) * | 2016-05-03 | 2019-05-21 | 清华大学 | A kind of high frequency loading device that loading force can be adjusted in real time and be measured |
| CN106526240A (en) * | 2016-12-20 | 2017-03-22 | 济南大学 | In-situ loading device based on scanning electron microscope |
| CN106526241A (en) * | 2016-12-20 | 2017-03-22 | 济南大学 | In-situ loading device based on scanning electron microscope |
| CN106526240B (en) * | 2016-12-20 | 2019-04-30 | 济南大学 | A kind of loading device in situ based on scanning electron microscope |
| CN106526241B (en) * | 2016-12-20 | 2019-08-06 | 高邮市新浪爱拓化工机械设备有限公司 | Loading device in situ based on scanning electron microscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20160422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |