CN104935208A - Liquid transfer-type piezoelectric driver - Google Patents
Liquid transfer-type piezoelectric driver Download PDFInfo
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- CN104935208A CN104935208A CN201510396981.0A CN201510396981A CN104935208A CN 104935208 A CN104935208 A CN 104935208A CN 201510396981 A CN201510396981 A CN 201510396981A CN 104935208 A CN104935208 A CN 104935208A
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- Prior art keywords
- piezoelectric
- driving chamber
- rotor
- piezoelectric driving
- driver
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- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000029052 metamorphosis Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a liquid transfer-type piezoelectric driver. The driver comprises a stator, a rotor, several wheel blades and a piezoelectric driving chamber. The rotor is pivoted to the stator. The several wheel blades are embedded into the rotor in an interference mode. The piezoelectric driving chamber is arranged on an outer end of the wheel blades. The piezoelectric driving chamber drives the wheel blades to carry out positive inversion. The stator and the rotor are pivoted through a sliding bearing and a thrust ball bearing. The wheel blades are made of an elastic material. The piezoelectric driving chamber is an enclosed cavity and the cavity is filled with a liquid. An outer side of the piezoelectric driving chamber is provided with a piezoelectric patch. The driver has the following advantages that the liquid is used to transmit kinetic energy and a new technical scheme is formed; an application scope of piezoelectric driving is greatly expanded; power generated through piezoelectric patch row changing is transmitted by the liquid; the driver is stable, noises are low and efficiency is high; the driving is stable and reliable. In addition, by using the piezoelectric driver provided in the invention, a mechanical structure is simple, cost is low and other characteristics are possessed.
Description
Technical field
The present invention relates to a kind of piezoelectric actuator, particularly a kind of liquid transfer formula piezoelectric actuator.
Background technology
Current, utilize that the piezoelectric actuator of piezoelectric element work has Long Distances, resolution is high, compact conformation, response characteristic are good, without electromagnetic interference, be easy to the advantages such as control, obtain increasingly extensive application in fields such as photovoltaic assembling, micro-precision optical machinery, the micro-manufacture of accurate device, Ultra-precision Turning.
In recent years, the research that piezoelectric actuator particularly utilizes piezoelectric chip to make the piezoelectric inertia impact formula driver of driver element is flourish trend, the asymmetrical signal of telecommunication is utilized to encourage piezoelectric chip to produce different impulsive forces, form driver directed movement, owing to producing impulsive force by piezoelectric patches distortion, can only be transmitted between solid and solid by point cantact, the shortcoming that such power is transmitted is a lot, as transmission efficiency is low, noise is large.
Summary of the invention
The object of the invention is in order to solve existing utilize piezoelectric chip as driver element piezoelectric actuator existing for problem and a kind of liquid transfer formula piezoelectric actuator provided.
Liquid transfer formula piezoelectric actuator provided by the invention includes stator, rotor, several wheel blade and Piezoelectric Driving chamber, wherein rotor pivot is on stator, several wheel blade interference is embedded on rotor, and Piezoelectric Driving chamber is located at the outer end of wheel blade, orders about wheel blade carry out rotating by Piezoelectric Driving chamber.
Pivot joint is carried out by sliding bearing and thrust ball bearing between stator and rotor.
Wheel blade is made up of elastomeric material.
Piezoelectric Driving chamber is closed cavity, is filled with liquid in cavity, and the outside in Piezoelectric Driving chamber is provided with piezoelectric patches.
Operation principle of the present invention:
During piezoelectric actuator work provided by the invention, piezoelectric patches outside Piezoelectric Driving chamber produces micro-strain under the unidirectional pulse wave excitation that frequency is higher, this metamorphosis produces momentum on the liquid of inside, Piezoelectric Driving chamber, momentum is transmitted on wheel blade by liquid, and now rotor rotates towards a direction.When the piezoelectric patches in the integral part of Piezoelectric Driving chamber is under unidirectional pulse excitation, rotor rotates to another way, makes this driver define bidirectional rotation.The number in wheel blade and Piezoelectric Driving chamber is indefinite, reaches and keeps whole drive efficiency the highest.
Beneficial effect of the present invention:
Utilize liquid transfer kinetic energy, define a kind of new technical scheme, greatly expanded the range of application of Piezoelectric Driving, the power that piezoelectric patches change row produces is by liquid transfer, and stable, low noise, efficiency is high.Make to drive more steadily reliable, in addition, adopt piezoelectric actuator provided by the invention, also there is mechanical structure simple, the features such as cost is low.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is rotor structure schematic diagram of the present invention.
1, stator 2, rotor 3, wheel blade 4, Piezoelectric Driving chamber 5, sliding bearing
6, thrust ball bearing 7, piezoelectric patches.
Embodiment
Refer to shown in Fig. 1 and Fig. 2:
Liquid transfer formula piezoelectric actuator provided by the invention includes stator 1, rotor 2, four wheel blades 3 and Piezoelectric Driving chamber 4, its rotor 2 pivot joint on the stator 1, the interference of four wheel blades 3 is embedded on rotor 2, Piezoelectric Driving chamber 4 is located at the outer end of wheel blade 3, orders about wheel blade 3 carry out rotating by Piezoelectric Driving chamber 4.
Pivot joint is carried out by sliding bearing 5 and thrust ball bearing 6 between stator 1 and rotor 2.
Wheel blade 3 is made up of elastomeric material.
Piezoelectric Driving chamber 4 is closed cavity, is filled with liquid in cavity, and the outside in Piezoelectric Driving chamber 4 is provided with piezoelectric patches 7.
Operation principle of the present invention:
During piezoelectric actuator work provided by the invention, piezoelectric patches 7 outside Piezoelectric Driving chamber 4 produces micro-strain under the unidirectional pulse wave excitation that frequency is higher, this metamorphosis produces momentum on the liquid of inside, Piezoelectric Driving chamber 4, momentum is transmitted on wheel blade 3 by liquid, and now rotor 2 rotates towards a direction.When the piezoelectric patches 7 in the integral part of Piezoelectric Driving chamber 4 is under unidirectional pulse excitation, rotor 2 rotates to another way, makes this driver define bidirectional rotation.
Claims (4)
1. a liquid transfer formula piezoelectric actuator, it is characterized in that: include stator, rotor, several wheel blade and Piezoelectric Driving chamber, wherein rotor pivot is on stator, several wheel blade interference is embedded on rotor, Piezoelectric Driving chamber is located at the outer end of wheel blade, orders about wheel blade carry out rotating by Piezoelectric Driving chamber.
2. liquid transfer formula piezoelectric actuator according to claim 1, is characterized in that: carry out pivot joint by sliding bearing and thrust ball bearing between described stator and rotor.
3. liquid transfer formula piezoelectric actuator according to claim 1, is characterized in that: described wheel blade is made up of elastomeric material.
4. liquid transfer formula piezoelectric actuator according to claim 1, is characterized in that: described Piezoelectric Driving chamber is closed cavity, is filled with liquid in cavity, and the outside in Piezoelectric Driving chamber is provided with piezoelectric patches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396981.0A CN104935208B (en) | 2015-07-08 | 2015-07-08 | Liquid delivery type piezoelectric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396981.0A CN104935208B (en) | 2015-07-08 | 2015-07-08 | Liquid delivery type piezoelectric actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104935208A true CN104935208A (en) | 2015-09-23 |
| CN104935208B CN104935208B (en) | 2018-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510396981.0A Active CN104935208B (en) | 2015-07-08 | 2015-07-08 | Liquid delivery type piezoelectric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104935208B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011024766A1 (en) * | 2009-08-26 | 2011-03-03 | パナソニック電工 株式会社 | Discharge device and electrostatic atomization device comprising same |
| US8773003B2 (en) * | 2011-03-09 | 2014-07-08 | Stmicroelectronics (Crolles 2) Sas | Thermoelectric generator |
| CN103997254A (en) * | 2014-05-28 | 2014-08-20 | 吉林大学 | Piezoelectric driving type software displacement driver |
| CN104426426A (en) * | 2013-09-09 | 2015-03-18 | 徐建宁 | Hydraulic piezoelectric generator |
| CN204993108U (en) * | 2015-07-08 | 2016-01-20 | 吉林大学 | Liquid transmission formula piezoelectric actuator |
-
2015
- 2015-07-08 CN CN201510396981.0A patent/CN104935208B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011024766A1 (en) * | 2009-08-26 | 2011-03-03 | パナソニック電工 株式会社 | Discharge device and electrostatic atomization device comprising same |
| US8773003B2 (en) * | 2011-03-09 | 2014-07-08 | Stmicroelectronics (Crolles 2) Sas | Thermoelectric generator |
| CN104426426A (en) * | 2013-09-09 | 2015-03-18 | 徐建宁 | Hydraulic piezoelectric generator |
| CN103997254A (en) * | 2014-05-28 | 2014-08-20 | 吉林大学 | Piezoelectric driving type software displacement driver |
| CN204993108U (en) * | 2015-07-08 | 2016-01-20 | 吉林大学 | Liquid transmission formula piezoelectric actuator |
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| Publication number | Publication date |
|---|---|
| CN104935208B (en) | 2018-01-05 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Guojun Inventor after: Liang Shihai Inventor after: Jiang Feng Inventor after: Wang Tengfei Inventor after: Tang Chunxiu Inventor after: Yang Zhigang Inventor before: Liu Guojun Inventor before: Yang Zhigang Inventor before: Liang Shihai Inventor before: Jiang Feng Inventor before: Wang Tengfei Inventor before: Tang Chunxiu |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180911 Address after: 213164 Science and Technology Branch of Changzhou Science and Education City, Jiangsu Province Patentee after: Changzhou angde Industrial Equipment Technology Co. Ltd. Address before: 130012 No. 2699 Qianjin Street, Jilin, Changchun Patentee before: Jilin University |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181213 Address after: 213164 Room 2521, North Building, Huiyan Building, 18 Changwuzhong Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Weitu Fluid Technology Co. Ltd. Address before: 213164 Science and Technology Branch of Changzhou Science and Education City, Jiangsu Province Patentee before: Changzhou angde Industrial Equipment Technology Co. Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213164 room 2521, North Tower, Hui Yan building, Changzhou science and Education Town, 18 Wujin Road, Wujin, Changzhou. Patentee after: Changzhou Weitu Fluid Technology Co. Ltd. Address before: 213164 room 2521, North Tower, Hui Yan building, Changzhou science and Education Town, 18 Wujin Road, Wujin, Changzhou. Patentee before: Changzhou Weitu Fluid Technology Co. Ltd. |