CN107332460B - A kind of ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type - Google Patents
A kind of ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type Download PDFInfo
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- CN107332460B CN107332460B CN201710108993.8A CN201710108993A CN107332460B CN 107332460 B CN107332460 B CN 107332460B CN 201710108993 A CN201710108993 A CN 201710108993A CN 107332460 B CN107332460 B CN 107332460B
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- piezoelectric
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- monocrystalline
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- 238000002604 ultrasonography Methods 0.000 title claims abstract description 34
- 230000010287 polarization Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920001967 Metal rubber Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 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
- 230000007812 deficiency Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/12—Constructional details
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention discloses a kind of ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type, piezoelectric monocrystal sheet including multi-disc sector, the piezoelectric monocrystal sheet of each sector surrounds annular, each piezoelectric monocrystal sheet polarizes along its thickness direction, two adjacent piezoelectric monocrystal sheet polarization directions are opposite, the use solved under the ring-like ultrasound electric machine low temperature environment of existing piezoelectric ceramics is limited, monocrystalline ring for the ring-like ultrasonic motor stator of large scale is difficult to process, the problems such as monocrystalline anisotropic influence, compared with the ring-like ultrasound electric machine of ring plate formula piezoelectric monocrystal, patch type high performance piezoelectric monocrystalline ring-shaped ultrasonic motor performance is promoted, power density increases, output torque increases, and processing and assembling is easy, it is compact-sized.
Description
[technical field]
The invention belongs to Ultrasonic Motor Techniques fields, are related to a kind of ring-like ultrasound electric machine use of high performance piezoelectric monocrystalline patch type
Oscillator.
[background technique]
Ultrasound electric machine is as a kind of novel driving motor, compared with traditional electromagnetic machine, ultrasound electric machine without magnetic pole with around
Group transmits energy not against electromagnetic field, but utilizes the inverse piezoelectric effect of piezoelectric material, the excitation ultrasound frequency in metal elastomer
Vibration in section, and then by resonance amplification and the friction coupling between stator and rotor, by the microcosmic of piezoelectric material
Deformation is converted to the macro-mechanical movement of rotor.Ultrasound electric machine has not by electromagnetic interference, and low speed high torque, dynamic response is fast,
The advantages that structure is simple, cuts off self-lock.
Due to the serious degeneration of piezoelectric ceramics piezoelectric property at low ambient temperatures, existing ring plate formula piezoelectric ceramics is ring-like super
Acoustic-electric machine is at low ambient temperatures using being restricted；It is difficult to add in the presence of the monocrystalline ring for the ring-like ultrasonic motor stator of large scale
The problem of work, monocrystalline anisotropy influence.
[summary of the invention]
Present invention aims to overcome that the deficiency of prior art, provides a kind of high performance piezoelectric monocrystalline patch type ring
Type ultrasound electric machine oscillator solves the use under the ring-like ultrasound electric machine low temperature environment of existing piezoelectric ceramics and is limited, for big ruler
The problems such as monocrystalline ring of very little ring-like ultrasonic motor stator is difficult to process, monocrystalline anisotropy influences.
In order to achieve the above objectives, the invention patent, which adopts the following technical scheme that, is achieved:
A kind of ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type, the piezoelectric monocrystal sheet including multi-disc sector,
The piezoelectric monocrystal sheet of each sector surrounds annular, and each piezoelectric monocrystal sheet is along same circumference, multi-disc piezoelectric monocrystal sheet it is upper
Surface and lower surface are coated with electrode respectively, and the upper surface of each piezoelectric monocrystal sheet is in the same plane, lower surface is located at same put down
On face, each piezoelectric monocrystal sheet polarizes along its thickness direction, and each piezoelectric monocrystal sheet is divided into the area A, the area B and Zone R, each in the area A and the area B
Piezoelectric monocrystal sheet width is λ/2, and Zone R piezoelectric monocrystal sheet width is λ/4, and wherein λ is traveling wave wavelength, adjacent two in the area A and the area B
A piezoelectric monocrystal sheet polarization direction on the contrary, the piezoelectric monocrystal sheet polarization direction of Zone R and the adjacent area A and the area B two piezoelectricity lists
Chip polarization direction is opposite.
Further, the multi-disc piezoelectric monocrystal sheet upper and lower surface is gold electrode or silver electrode.
Further, the multi-disc piezoelectric monocrystal sheet is that piezoelectric property is consistent, single-chip machine direction is consistent, material homogeneity
Consistent and thickness direction is the monocrystalline in [001] direction.
Further, the multi-disc piezoelectric monocrystal sheet is high performance piezoelectric monocrystal material.
Further, the high performance piezoelectric monocrystal material is lead niobate lead indate-lead-lead magnesium niobate-lead titanate or lead magnesio-niobate-titanium
One of lead plumbate.
Further, including 17 fan-shaped piezoelectric monocrystal sheets, the area A and the area B respectively include 8 piezoelectric monocrystal sheets, and width is
Width is λ/2, and Zone R includes 1, and width is λ/4.
There are following advantages by the present invention:
1), ultrasound electric machine of the invention surrounds annular composition using the piezoelectric monocrystal sheet of multi-disc sector with oscillator, so that super
Acoustic-electric machine stator rigidity reduces, to reduce stator resonance frequency, reduces the mechanical loss and piezoelectric monocrystal of motor stator
Mechanical loss.
2), because, there are composition segregation phenomenon, oscillator of the invention is fanned using multi-disc in high performance piezoelectric single crystal growth process
The piezoelectric monocrystal sheet of shape surrounds annular composition, can adjust position according to multiple monolithic piezoelectric single-chip properties, eliminate
Influence of the monocrystal material homogeneity of ingredients to ultrasound electric machine performance.In engineer application, in ultrasound electric machine work, if some is special
Fixed single-chip fracture, can replace the specific single-chip.The processing technology of large size single crystal ring is also immature at present, independent small
The processing of size single crystal piece is more convenient.
3), ultrasound electric machine of the invention encloses composition using piezoelectric monocrystal sheet with oscillator, so that under the particular surroundings such as low temperature,
The performance of ultrasound electric machine is stablized, and improves the power density of ultrasound electric machine.
4), the ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type makes ultrasonic motor stator in the position of Z-direction
It moves and increases, in the case where same friction, frictional force increases, and the output torque of ultrasound electric machine also increases.
[Detailed description of the invention]
Fig. 1 is a kind of ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type point described in specific embodiment 1
Cloth schematic diagram
Fig. 2 is a kind of ring-like ultrasonic motor stator signal of high performance piezoelectric monocrystalline patch type described in specific embodiment 2
Figure
Fig. 3 is the schematic diagram of high performance piezoelectric monocrystalline ring plate formula ring-shaped ultrasonic motor work
Fig. 4 is the Mode Shape figure of the ring-like ultrasonic motor stator vibration of high performance piezoelectric monocrystalline patch type
Fig. 5 is the Harmony response figure of the ring-like ultrasonic motor stator vibration of high performance piezoelectric monocrystalline patch type
[specific embodiment]
The application particular content is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type of the invention, including multi-disc are fan-shaped
Piezoelectric monocrystal sheet, the piezoelectric monocrystal sheet of each sector surrounds annular, and each piezoelectric monocrystal sheet is along same circumference, multi-disc pressure
The upper and lower surfaces of electric single-chip are coated with electrode respectively, and the upper surface of each piezoelectric monocrystal sheet is in the same plane, following table
Face is in the same plane, and each piezoelectric monocrystal sheet polarizes along its thickness direction, and each piezoelectric monocrystal sheet is divided into the area A, the area B and Zone R,
Each piezoelectric monocrystal sheet width is λ/2 in the area A and the area B, and Zone R piezoelectric monocrystal sheet width is λ/4, and wherein λ is traveling wave wavelength, the area A and B
Two adjacent piezoelectric monocrystal sheet polarization directions in area are on the contrary, the piezoelectric monocrystal sheet polarization direction of Zone R and the adjacent area A and the area B
Two piezoelectric monocrystal sheet polarization directions it is opposite.
The multi-disc piezoelectric monocrystal sheet upper and lower surface is gold electrode.Multi-disc piezoelectric monocrystal sheet consistent, monocrystalline for piezoelectric property
Piece machine direction is consistent, material homogeneity is consistent and thickness direction is the monocrystalline in [001] direction.Multi-disc piezoelectric monocrystal sheet is iron
Electric monocrystal material, specially lead niobate lead indate-lead-lead magnesium niobate-lead titanate (PIN-PMN-PT) or lead magnesium niobate-lead titanate (PMN-
One of PT).
The ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type of the invention, solves existing piezoelectricity from principle
Use under the ring-like ultrasound electric machine low temperature environment of ceramics is limited, for the ring-like ultrasonic motor stator of large scale monocrystalline ring be difficult to plus
The problems such as work, monocrystalline anisotropic influence.Compared with the ring-like ultrasound electric machine of ring plate formula piezoelectric monocrystal, patch type high-performance pressure
Electric monocrystalline ring-shaped ultrasonic motor performance is promoted, and power density increases, and output torque increases, and processing and assembling letter
Just, compact-sized.
Illustrate the content of present invention below by way of specific embodiment:
As shown in Figure 1, ultrasound electric machine with oscillator include 17 piezoelectric monocrystal sheets, single-chip A1, A2, A3,, A8 A
Area, single-chip B1, B2, B3,, B8 be the area B, single-chip R is Zone R, wherein single-chip A1, single-chip A3, single-chip A5, monocrystalline
Piece A7, single-chip R, single-chip B1, single-chip B3, single-chip B5 are identical with the polarization direction of single-chip B7, single-chip A2, monocrystalline
Piece A4, single-chip A6, single-chip A8, single-chip B2, single-chip B4, single-chip B6 are identical with the polarization direction of single-chip B8, and
And with single-chip A1, single-chip A3, single-chip A5, single-chip A7, single-chip R, single-chip B1, single-chip B3, single-chip B5 and
The polarization direction of single-chip B7 is opposite；Two single-chip A8, B8 polarization direction phases of single-chip R and the area A adjacent thereto and the area B
Instead.
As shown in Fig. 2, the oscillator 1 of Fig. 1 is fixed on the lower surface composition ultrasonic motor stator of metal elastomer 2, metal elastic
Property body connection power supply common end, single-chip A1, single-chip A2, single-chip A3, single-chip A4, single-chip A5, single-chip A6, list
Chip A7 connects a phase driving signal with the outer surface of single-chip A8, single-chip B1, single-chip B2, single-chip B3, single-chip B4,
Single-chip B5, single-chip B6, single-chip B7 and the outer surface of single-chip B8 connect another phase driving signal, and single-chip R is feedback
Pole.
As shown in figure 3, stator and the composition composition ultrasound electric machine of rotor 3.As shown in figure 4, ultrasound electric machine is at work, use
Frequency is that the corresponding resonance frequency of certain modality-specific, the two-phase alternating current that amplitude is equal, phase difference is 90 ° are pressed into row energization,
To inspire in track ring, amplitude is identical, and differs 90 ° of two column standing waves over time and space, the superposition of this two column standing wave
Cheng Yilie traveling wave.And when the phase difference of two-phase driving voltage is -90 °, then the direction of advance of traveling wave is also reversed, i.e., rotor is anti-
To rotation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (5)
1. a kind of ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type, it is characterised in that: the pressure including multi-disc sector
Electric single-chip, the piezoelectric monocrystal sheet of each sector surrounds annular, and each piezoelectric monocrystal sheet is along same circumference, multi-disc piezoelectricity list
The upper and lower surfaces of chip are coated with electrode respectively, and the upper surface of each piezoelectric monocrystal sheet is in the same plane, lower surface position
In on same plane, each piezoelectric monocrystal sheet polarizes along its thickness direction, and each piezoelectric monocrystal sheet is divided into the area A, the area B and Zone R, the area A
It is λ/2 with piezoelectric monocrystal sheet width each in the area B, Zone R piezoelectric monocrystal sheet width is λ/4, and wherein λ is traveling wave wavelength, the area A and the area B
In adjacent two piezoelectric monocrystal sheet polarization directions on the contrary, the piezoelectric monocrystal sheet polarization direction of Zone R and the adjacent area A and the area B
Two piezoelectric monocrystal sheet polarization directions are opposite；
Including 17 fan-shaped piezoelectric monocrystal sheets, the area A and the area B respectively include 8 piezoelectric monocrystal sheets, and width is that width is λ/2, R
Area includes 1, and width is λ/4.
2. the ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type according to claim 1, it is characterised in that: institute
Stating multi-disc piezoelectric monocrystal sheet upper and lower surface is gold electrode.
3. the ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type according to claim 1, it is characterised in that: institute
Stating multi-disc piezoelectric monocrystal sheet is that piezoelectric property is consistent, single-chip machine direction is consistent, material homogeneity is consistent and thickness direction is equal
For the monocrystalline in [001] direction.
4. the ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type according to claim 1,2 or 3, feature exist
In: the multi-disc piezoelectric monocrystal sheet is high performance piezoelectric monocrystal material.
5. the ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type according to claim 4, it is characterised in that: institute
Stating high performance piezoelectric monocrystal material is lead niobate lead indate-lead-one of lead magnesium niobate-lead titanate or lead magnesium niobate-lead titanate.
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| CN201710108993.8A CN107332460B (en) | 2017-02-27 | 2017-02-27 | A kind of ring-like ultrasound electric machine oscillator of high performance piezoelectric monocrystalline patch type |
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| CN111463344A (en) * | 2019-01-22 | 2020-07-28 | 中国科学院上海硅酸盐研究所 | Preparation method of piezoelectric single crystal element |
| CN110601590B (en) * | 2019-11-05 | 2024-01-26 | 山东理工大学 | Patch type standing wave type double-sided tooth ultrasonic motor stator |
| CN112260576A (en) * | 2020-10-30 | 2021-01-22 | 西安科技大学 | Single crystal splicing method for annular ultrasonic motor |
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| JPH01238476A (en) * | 1988-03-17 | 1989-09-22 | Canon Inc | Vibration wave motor |
| DE10113660A1 (en) * | 2001-03-21 | 2002-09-26 | Koninkl Philips Electronics Nv | Piezoelectric drive has cylindrical piezoelectric element of stator contacted by projections of mechanical coupling released periodically for rotation of rotor |
| CN102110770B (en) * | 2005-11-29 | 2012-12-12 | 京瓷株式会社 | Multi-layer electronic component and method for manufacturing same |
| JP2009190114A (en) * | 2008-02-13 | 2009-08-27 | Toyota Motor Corp | Tool and method for machining cylinder block |
| JP2015134707A (en) * | 2013-12-18 | 2015-07-27 | キヤノン株式会社 | Piezoelectric material, piezoelectric element, and electronic apparatus |
| CN106452171B (en) * | 2016-10-28 | 2018-07-13 | 南京工程学院 | The space phase modulation annular Traveling Ultrasonic Motor and its control method of asymmetric ceramics subregion |
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