CN110601590A - Paster type standing wave type double-sided tooth ultrasonic motor stator - Google Patents
Paster type standing wave type double-sided tooth ultrasonic motor stator Download PDFInfo
- Publication number
- CN110601590A CN110601590A CN201911071329.6A CN201911071329A CN110601590A CN 110601590 A CN110601590 A CN 110601590A CN 201911071329 A CN201911071329 A CN 201911071329A CN 110601590 A CN110601590 A CN 110601590A
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- piezoelectric ceramic
- standing wave
- ultrasonic motor
- sided tooth
- stator
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- 239000000919 ceramic Substances 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000010287 polarization Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229920001967 Metal rubber Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
- H02N2/0015—Driving devices, e.g. vibrators using only bending modes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/0075—Electrical details, e.g. drive or control circuits or methods
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
A patch type standing wave type double-sided tooth ultrasonic motor stator relates to the technical field of piezoelectric ultrasonic motors. The surface mount type ultrasonic motor stator solves the problems that the oscillator amplitude is limited due to overhigh integral rigidity in the conventional surface mount type ultrasonic motor stator. The stator comprises a piezoelectric ceramic piece and a double-sided tooth-shaped metal body; the piezoelectric ceramic pieces are adhered to the upper and lower surfaces of the double-sided tooth-shaped metal body according to a certain position. The invention can be applied to the field of ultrasonic motor manufacturing.
Description
Technical Field
The invention relates to a surface mount type standing wave type double-sided tooth ultrasonic motor stator, and belongs to the technical field of piezoelectric ultrasonic motors.
Background
The piezoelectric ultrasonic motor utilizes the inverse piezoelectric effect of piezoelectric ceramics to excite vibration in an ultrasonic frequency band in an elastic body, forms mass point motion with a specific track at a specific point or a specific area on the surface of the elastic body, and then converts the microscopic motion of the mass point into the macroscopic motion of a rotor through the frictional coupling between a stator and the rotor.
Due to the simplicity of an excitation principle and the simplicity of a theoretical analysis method, the conventional piezoelectric ultrasonic motor is mostly excited by sticking a piezoelectric ceramic sheet on one surface of a metal elastomer, and the amplitude of a vibrator is limited due to high integral rigidity of a stator, so that the mechanical output capacity of the ultrasonic motor is severely limited.
Disclosure of Invention
In order to solve the problem that the amplitude of a vibrator is limited due to high integral rigidity of an ultrasonic motor stator, a surface mount type standing wave type double-sided tooth ultrasonic motor stator is provided.
The invention relates to a patch type standing wave type double-sided tooth ultrasonic motor stator which comprises a piezoelectric ceramic piece (1) and a double-sided tooth type metal body (2); the piezoelectric ceramic chip is characterized in that the double-sided tooth-shaped metal body (2) is integrally of an annular structure, driving teeth are circumferentially distributed on the upper surface and the lower surface of the annular metal body, the piezoelectric ceramic chips (1) are polarized along the thickness direction and are adhered to the upper surface and the lower surface of the annular metal body in a circumferential array mode, the polarization directions of two adjacent piezoelectric ceramic chips (1) on the same side face of the annular metal body are opposite, and the polarization directions of two adjacent piezoelectric ceramic chips (1) on different side faces are the same.
The structure arrangement of the two side surfaces of the stator of the patch type standing wave type double-sided tooth ultrasonic motor stator is completely symmetrical, only one piezoelectric ceramic piece (1) is pasted between two driving teeth on the same side surface, the distance between the central lines of two adjacent piezoelectric ceramic pieces (1) on the same side surface is one half of a standing wave wavelength, wherein each piezoelectric ceramic piece (1) is less than or equal to one quarter of the standing wave wavelength; the distance between the central line of the driving tooth and the central line of the piezoelectric ceramic piece (1) on the adjacent left side (or right side) is one eighth of the wavelength of a standing wave.
The surface mount type standing wave type double-sided tooth ultrasonic motor stator applies single-phase alternating current voltage to all piezoelectric ceramic pieces (1), the metal body is a common grounding electrode, and d of the piezoelectric ceramic pieces is utilized31The working mode realizes the excitation of the bending vibration standing wave of the stator.
The standing wave waveform of the surface mount type standing wave type double-sided tooth ultrasonic motor stator enables the upper and lower driving teeth to have the same driving force.
The thickness of the piezoelectric ceramic piece (1) of the patch type standing wave type double-sided tooth ultrasonic motor stator is smaller than the height of the driving tooth.
The surface mount type standing wave type double-sided tooth ultrasonic motor stator has the advantages of simple structure, flexible design, stable performance, easy control and serialized production.
The invention is suitable for the field of piezoelectric ultrasonic motors.
Drawings
Fig. 1 is a three-dimensional structural view of the present invention.
FIG. 2 is a schematic view showing the polarization direction and electrode connection of the piezoelectric ceramic of the present invention.
FIG. 3 is an axial bending mode diagram of the ring stator of the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and the patch type standing wave type double-sided tooth ultrasonic motor stator according to the present embodiment includes a piezoelectric ceramic sheet (1) and a double-sided tooth type metal body (2); the piezoelectric ceramic chip is characterized in that the double-sided tooth-shaped metal body (2) is integrally of an annular structure, driving teeth are circumferentially distributed on the upper surface and the lower surface of the annular metal body, the piezoelectric ceramic chips (1) are polarized along the thickness direction and are adhered to the upper surface and the lower surface of the annular metal body in a circumferential array mode, the polarization directions of two adjacent piezoelectric ceramic chips (1) on the same side face of the annular metal body are opposite, and the polarization directions of two adjacent piezoelectric ceramic chips (1) on different side faces are the same.
The second embodiment is as follows: the difference between the present embodiment and the first embodiment is that the structural arrangement of the two side surfaces of the stator is completely symmetrical, only one piezoelectric ceramic piece (1) is pasted between two driving teeth on the same side surface, and the distance between the center lines of two adjacent piezoelectric ceramic pieces (1) on the same side surface is one half of a standing wave wavelength, wherein each piezoelectric ceramic piece (1) should be less than or equal to one quarter of the standing wave wavelength; the distance between the central line of the driving tooth and the central line of the piezoelectric ceramic piece (1) on the adjacent left side (or right side) is one eighth of the wavelength of a standing wave.
The third concrete implementation mode: the stator of the patch type standing wave type double-sided tooth ultrasonic motor in the present embodiment is different from the stator of the first embodiment in that the stator is excited by the standing wave of the flexural vibration by applying a single-phase ac voltage to all the piezoelectric ceramic plates (1), and the metal body is a common ground electrode, and the d31 working mode of the piezoelectric ceramic is utilized.
The fourth concrete implementation mode: the stator of the patch type standing wave type double-sided tooth ultrasonic motor according to the first embodiment is different from the stator of the patch type standing wave type double-sided tooth ultrasonic motor according to the first embodiment in that the standing wave waveform of the stator enables the upper and lower driving teeth to have driving forces in the same direction.
The difference between the present embodiment and the first embodiment of the patch type standing wave type double-sided tooth ultrasonic motor stator is that the thickness of the piezoelectric ceramic plate (1) is smaller than the height of the driving teeth.
Claims (5)
1. The surface mount type standing wave type double-sided tooth ultrasonic motor stator comprises a piezoelectric ceramic piece (1) and a double-sided tooth type metal body (2); the piezoelectric ceramic chip is characterized in that the double-sided tooth-shaped metal body (2) is integrally of an annular structure, driving teeth are circumferentially distributed on the upper surface and the lower surface of the annular metal body, the piezoelectric ceramic chips (1) are polarized along the thickness direction and are adhered to the upper surface and the lower surface of the annular metal body in a circumferential array mode, the polarization directions of two adjacent piezoelectric ceramic chips (1) on the same side face of the annular metal body are opposite, and the polarization directions of two adjacent piezoelectric ceramic chips (1) on different side faces are the same.
2. The patch type standing wave type double-sided tooth ultrasonic motor stator according to claim 1, wherein the structural arrangement of the two side surfaces of the stator is completely symmetrical, only one piezoelectric ceramic piece (1) is pasted between two driving teeth on the same side surface, and the distance between the central lines of two adjacent piezoelectric ceramic pieces (1) on the same side surface is one half of a standing wave wavelength, wherein each piezoelectric ceramic piece (1) should be less than or equal to one quarter of the standing wave wavelength; the distance between the central line of the driving tooth and the central line of the piezoelectric ceramic piece (1) on the adjacent left side (or right side) is one eighth of the wavelength of a standing wave.
3. The patch of claim 1The standing wave type double-sided tooth ultrasonic motor stator is characterized in that single-phase alternating current voltage is applied to all piezoelectric ceramic pieces (1), a metal body is a common grounding electrode, and d of the piezoelectric ceramic pieces is utilized31The working mode realizes the excitation of the bending vibration standing wave of the stator.
4. The patch type standing wave type double-sided teeth ultrasonic motor stator as claimed in claim 1, wherein the standing wave waveform of the stator enables the upper and lower driving teeth to have the same driving force.
5. The stator of the surface-mounted standing wave type double-sided tooth ultrasonic motor according to claim 1, wherein the thickness of the piezoelectric ceramic plate (1) is less than the height of the driving teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071329.6A CN110601590B (en) | 2019-11-05 | 2019-11-05 | Patch type standing wave type double-sided tooth ultrasonic motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071329.6A CN110601590B (en) | 2019-11-05 | 2019-11-05 | Patch type standing wave type double-sided tooth ultrasonic motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110601590A true CN110601590A (en) | 2019-12-20 |
| CN110601590B CN110601590B (en) | 2024-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911071329.6A Active CN110601590B (en) | 2019-11-05 | 2019-11-05 | Patch type standing wave type double-sided tooth ultrasonic motor stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110601590B (en) |
Citations (13)
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|---|---|---|---|---|
| JPH0937573A (en) * | 1995-07-17 | 1997-02-07 | Fanuc Ltd | Ultrasonic actuator |
| JPH11220894A (en) * | 1997-10-27 | 1999-08-10 | Fanuc Ltd | Double-sided driving ultrasonic motor |
| CN1453929A (en) * | 2002-04-18 | 2003-11-05 | 佳能株式会社 | Oscillating wave driving apparatus, oscillating body and driving system for oscillating wave driver |
| CN201742324U (en) * | 2010-06-08 | 2011-02-09 | 江苏春生超声电机有限公司 | Rotary travelling wave ultrasonic motor |
| CN102037638A (en) * | 2008-05-27 | 2011-04-27 | 株式会社村田制作所 | Ultrasonic motor |
| CN102224670A (en) * | 2008-11-25 | 2011-10-19 | 株式会社村田制作所 | Piezoelectric oscillator and ultrasonic motor |
| CN102751905A (en) * | 2012-06-25 | 2012-10-24 | 南京航空航天大学 | Novel double-tooth-surface rotary ultrasonic motor stator and excitation way thereof |
| CN104377988A (en) * | 2014-12-09 | 2015-02-25 | 河北大学 | Standing-wave type ultrasonic motor of two driving frequency |
| CN106533250A (en) * | 2016-12-21 | 2017-03-22 | 深圳大学 | Ultrasonic motor of multi-stator planar array structure |
| CN106992708A (en) * | 2017-05-24 | 2017-07-28 | 宁波大学 | A kind of ultrasound electric machine with double cog metal-plastic composite stator |
| CN107332460A (en) * | 2017-02-27 | 2017-11-07 | 西安交通大学 | A kind of SMD ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline |
| CN207504784U (en) * | 2017-11-16 | 2018-06-15 | 郑州大学 | Stator module and rotary type travelling wave ultrasonic motor |
| CN109980988A (en) * | 2019-04-19 | 2019-07-05 | 深圳市三阶微控实业有限公司 | A kind of multiple freedom degrees ultrasound wave electric motor and controller method |
-
2019
- 2019-11-05 CN CN201911071329.6A patent/CN110601590B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0937573A (en) * | 1995-07-17 | 1997-02-07 | Fanuc Ltd | Ultrasonic actuator |
| JPH11220894A (en) * | 1997-10-27 | 1999-08-10 | Fanuc Ltd | Double-sided driving ultrasonic motor |
| CN1453929A (en) * | 2002-04-18 | 2003-11-05 | 佳能株式会社 | Oscillating wave driving apparatus, oscillating body and driving system for oscillating wave driver |
| CN102037638A (en) * | 2008-05-27 | 2011-04-27 | 株式会社村田制作所 | Ultrasonic motor |
| CN102224670A (en) * | 2008-11-25 | 2011-10-19 | 株式会社村田制作所 | Piezoelectric oscillator and ultrasonic motor |
| CN201742324U (en) * | 2010-06-08 | 2011-02-09 | 江苏春生超声电机有限公司 | Rotary travelling wave ultrasonic motor |
| CN102751905A (en) * | 2012-06-25 | 2012-10-24 | 南京航空航天大学 | Novel double-tooth-surface rotary ultrasonic motor stator and excitation way thereof |
| CN104377988A (en) * | 2014-12-09 | 2015-02-25 | 河北大学 | Standing-wave type ultrasonic motor of two driving frequency |
| CN106533250A (en) * | 2016-12-21 | 2017-03-22 | 深圳大学 | Ultrasonic motor of multi-stator planar array structure |
| CN107332460A (en) * | 2017-02-27 | 2017-11-07 | 西安交通大学 | A kind of SMD ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline |
| CN106992708A (en) * | 2017-05-24 | 2017-07-28 | 宁波大学 | A kind of ultrasound electric machine with double cog metal-plastic composite stator |
| CN207504784U (en) * | 2017-11-16 | 2018-06-15 | 郑州大学 | Stator module and rotary type travelling wave ultrasonic motor |
| CN109980988A (en) * | 2019-04-19 | 2019-07-05 | 深圳市三阶微控实业有限公司 | A kind of multiple freedom degrees ultrasound wave electric motor and controller method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110601590B (en) | 2024-01-26 |
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Inventor after: Yang Xiaohui Inventor after: Zhang Dongdong Inventor after: Song Rujun Inventor after: Jia Shuang Inventor after: Yang Xianhai Inventor before: Yang Xiaohui Inventor before: Zhang Dongdong Inventor before: Song Rujun Inventor before: Jia Shuang Inventor before: Yang Xianhai |
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