CN1554145A - Driving device for ultrasonic motor - Google Patents
Driving device for ultrasonic motor Download PDFInfo
- Publication number
- CN1554145A CN1554145A CNA028025520A CN02802552A CN1554145A CN 1554145 A CN1554145 A CN 1554145A CN A028025520 A CNA028025520 A CN A028025520A CN 02802552 A CN02802552 A CN 02802552A CN 1554145 A CN1554145 A CN 1554145A
- Authority
- CN
- China
- Prior art keywords
- electric machine
- drive unit
- ultrasound electric
- piezoelectric transformer
- piezoelectric
- 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.)
- Granted
Links
- 238000002604 ultrasonography Methods 0.000 claims description 41
- 230000010363 phase shift Effects 0.000 claims description 8
- 230000014509 gene expression Effects 0.000 description 8
- 239000003550 marker Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005352 galvanomagnetic phenomena Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
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
- H02N2/14—Drive circuits; Control arrangements or methods
- H02N2/145—Large signal circuits, e.g. final stages
- H02N2/147—Multi-phase circuits
-
- 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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/06—Drive circuits; Control arrangements or methods
- H02N2/065—Large signal circuits, e.g. final stages
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/40—Piezoelectric or electrostrictive devices with electrical input and electrical output, e.g. functioning as transformers
Abstract
A driving device for ultrasonic motors, whose particularity consists of the fact that it comprises at least one piezoelectric transformer for driving an ultrasonic motor.
Description
Technical field
The present invention relates to a kind of drive unit that is used for ultrasound electric machine.Be particularly related to a kind of drive unit that is used for rotary ultrasonic motor and linear ultrasonic motor.
Background technology
As everyone knows, ultrasound electric machine comprise a vibrating body that constitutes by piezoelectrics and elastomer and one be arranged to rotor with the contacted rotary body of certain pressure.By a high-frequency alternating voltage is provided to these piezoelectrics, because the oscillating action of vibrating body sends the elastic displacement ripple, so rotor utilizes the frictional force effect to rotate.
The piezoelectric ultrasonic motor utilization be non-galvanomagnetic effect, this has substituted common Principle of Electric Engine.In ultrasound electric machine, in order to obtain converting to the capable ripple that moves continuously of movable part, can form two ultrasonic vibrations, these two ultrasonic vibration phase shifts are 90 ° or 45 ° usually.By the piezoelectric ring of the setting by different way that polarizes simply or by the stack piezoelectric element, will cause ultrasonic vibration.
Summary of the invention
Shown in Fig. 1 is the example of rotary ultrasonic motor, and this motor is particularly suitable to be used in the automatic circuit breaker.
As shown in the drawing, a piezoelectric motor generally by reference marker 1 expression, comprises a stator unit and a rotor unit.This rotor unit comprises a metal dish or encircles 2 that it structurally mates with the axle rigidity of described motor.In addition, in order to allow bearing 3 rotations, bearing 3 just links with this motor shaft on its function.
Say that in order stator unit comprises a sheet dish 53, bearing 3 connects on it, also comprise an annular resilient dish 4, it is connected on the sheet dish 53 and has substrate 5 and ring 6, and ring 6 forms has the shape of a plurality of teeth, and these teeth are laterally especially outstanding from substrate 5 with vertical angle.
Stator unit further comprises at least one piezoelectric material layer 7, and this layer is fixed to and for example bonds on the elastic plate 4.Particularly, piezoelectric material layer 7 comprises a plurality of fanning strips 8, these fanning strips in the opposite direction alternant polarization and the control signal by the external control unit to its electric excitation.
The operating process of the ultrasound electric machine among Fig. 1 is as described below.
When input voltage, each fanning strip 8 of ring 7 will be distorted and elastic ring also will be distorted.For the little vibration that is caused by the piezoelectricity fanning strip is increased, elastic ring is provided with tooth.As a result, will produce the ultrasonic wave of advancing along this ring.When this ultrasonic Qu Bo that advances encircles when mobile along this, the contact point between stator and the rotor has oval-shaped movement travel, and then can utilize friction to drive rotor and rotate continuously.
Shown in Fig. 2 is the example of the stator in the linear ultrasonic motor, by reference marker 15 expression, and the wherein such mutual superimposition setting that goes out as shown of this piezoelectric element 16.
The linear electric motors of other type have utilized one or more ultrasonic vibrations that caused by at least one patch of piezoelectric material, and wherein this patch of piezoelectric material is bonded in above the plate with suitable projection.
This piezoelectric element is connected with oval component 27, so piezoelectric element 16 makes this member vibration on the direction of arrow 14 expressions.
Shown in Fig. 3 is the standard drive circuit that is used for ultrasound electric machine, and it is particularly including a voltage-controlled oscillator 20, and this oscillator can send the signal of different frequency according to the voltage that is input to its control end.
This oscillator sends an ac voltage signal, and this Signal Separation goes out two signals: one of them signal is by phase-shift circuit 21 phase shifts, and above-mentioned then two signals are input in the power supply amplifying stage of being made up of two power amplifiers 22.The performance of the transformer 23 that utilization is made up of the coil windings of common model, this voltage of signals can increase to the level that is enough to drive this ultrasound electric machine.Follow above-mentioned signal and be input to two terminals that are used to drive the ultrasound electric machine vibrating body, this motor is represented by reference marker 1 in Fig. 3.Described ultrasound electric machine is represented by the same reference numbers that adopts among Fig. 1, but it also can be the type of ultrasound electric machine shown in Fig. 2, and therefore they also can be by reference marker 15 expressions in this case.
The result of described signal transmission is, motivates the flexural vibration displacement wave in the vibrating body of ultrasound electric machine, therefore cause the rotor rotation, as the front in conjunction with Fig. 1 explained.Among Fig. 3 with in the circuit shown in the structure chart input DC power supply voltage.
This circuit becomes complete circuit by a circuit 24 and a speed control circuit 25 that is suitable for driving voltage control generator 20 and phase-shift circuit 21 that is used to detect ultrasound electric machine speed.
Yet the drive unit of ultrasound electric machine just as the drive unit shown in Fig. 3, also has defective.
At first, the circuit among Fig. 3 need adopt the transformer with special coil winding that is used for high frequency.And the accuracy of frequency of oscillation is approximately 20%, because the quantity multicircuit plate of element is not very compact.
In addition, the electronic circuit cost among Fig. 1 is very high, and the efficient of this control system is very low.
The object of the present invention is to provide a kind of Driven by Ultrasonic Motors device, this device is simpler more reliable than known drive unit.
In this purpose scope, the drive unit that provides one to be used for ultrasound electric machine is provided a target of the present invention, and wherein electronic section is simplified widely with respect to known drive unit.
The drive unit that provides one to be used for ultrasound electric machine is provided another target of the present invention, and it has the accuracy of higher efficient and higher accessible vibration frequency than known drive unit.
The drive unit that provides one to be used for ultrasound electric machine is provided another target of the present invention, and it can self-shield under the motor terminal short-circuit conditions.
The drive unit that provides one to be used for ultrasound electric machine is provided another target of the present invention, and it has the device that equates output voltage and compare and have littler size with known.
The drive unit that provides one to be used for ultrasound electric machine is provided another target of the present invention, and it has very high reliability, simpler and have a more economical cost.
Description of drawings
Utilize a kind of drive unit of ultrasound electric machine can realize that above-mentioned purpose, these targets and other purpose will clearly is characterized in that hereinafter, it comprises that at least one is used to drive the piezoelectric transformer of ultrasound electric machine.Further characteristic of the present invention and advantage will by to the drive unit among the present invention preferable and become clear in the description of not exclusive execution mode, it only illustrates by nonrestrictive example in the accompanying drawing.Wherein,
Fig. 1 is the decomposition diagram of rotary ultrasonic motor;
Fig. 2 is the schematic diagram of the stator of linear ultrasonic motor;
Fig. 3 is the known structure chart that is used for the drive unit of ultrasound electric machine;
Fig. 4 is the Driven by Ultrasonic Motors schematic representation of apparatus among the present invention;
Fig. 5 is the view of the piezoelectric transformer in the Driven by Ultrasonic Motors device that is applied among Fig. 4;
Fig. 6 is the perspective view of the piezoelectric transformer shown in Fig. 5;
Fig. 7 is the more detailed structure chart of Driven by Ultrasonic Motors device according to invention.
Embodiment
With reference to above-mentioned figure, particularly with reference to Fig. 4, the Driven by Ultrasonic Motors device among the present invention, as Fig. 4 shown in roughly, its characteristic that has is that it comprises at least one piezoelectric transformer and more preferably has a pair of piezoelectric transformer, is used for the terminal power supply to ultrasound electric machine.
In Fig. 4, the ultrasound electric machine with reference marker 1 expression is driven by the drive unit with reference marker 30 expressions among the present invention once more, and it comprises two piezoelectric transformers 31, and these two transformers are driven in order by alternating wave generator 32.
This generator is by DC power supply.
A piezoelectric transformer is made up of two electrodes, one elementary and one secondary, as shown in Figure 6, wherein primary electrode by reference marker 33 expression and secondary electrode by reference marker 34 expressions.
Generally, piezoelectric transformer also can have a plurality of secondary electrodes and be annular.
These electrodes are worked together just as a vibrator and piezoelectric vibration are taken place.When elementary electrode sends a common alternating voltage frequency, wherein this frequency depends on size, especially length or depends on the restrictive condition of transformer, this electrode utilizes the characteristic of piezoelectric effect to cause strong mechanical oscillation, making secondary electrode send a high pressure output and offer load, is ultrasound electric machine in the present embodiment.
Otherwise too, if ultrasound electric machine needs an input voltage also lower than the input voltage of piezoelectric transformer, this piezoelectric transformer also can be used for reducing voltage.
Fig. 5 is at the schematic diagram of the piezoelectric transformer shown in the perspective view of Fig. 6.
Fig. 7 shows the piezo inverter that is suitable for driving ultrasound electric machine 1.
In fact, according to Driven by Ultrasonic Motors device of the present invention, comprise a pair of piezoelectric transformer 31 in the present embodiment again, it is driven by phase-shift circuit 35 and voltage-controlled quadrature oscillator 38, and voltage-controlled quadrature oscillator receives clock frequency f of input in order
0, wherein this frequency is will be input to the speed that is used to detect and control ultrasound electric machine 1 in the circuit 37 to result and this feedback signal that the feedback signal 36 that ultrasound electric machine 1 sends is handled, circuit 37 also receives reference velocity V of input
Rif
Speed detects and control circuit 37 provides one and the proportional signal of predetermined speed in order, and is input in the voltage-controlled oscillator 38, and it sends above-mentioned clock frequency f in order
0
This quadrature oscillator provides the low pressure sine and the cosine signal of preset frequency, and its drive pressure piezoelectric transformer 31 work make piezoelectric transformer can reach the required voltage of ultrasound electric machine in order.
In fact, the drive unit with piezoelectric transformer among the present invention can provide: have the moving of transformer of high-tension coil winding, wherein this transformer has higher efficient; From the angle of electronics simple drive circuit more; Owing to the higher frequency of oscillation accuracy that does not have electromagnetic noise to have; And compare and have more compact structure with having equal input voltage device.
In addition, piezoelectric transformer can be used very easily, is used to obtain the inverter of DC/DC or DC/AC or AC/DC, particularly when needs input or output high voltage and galvanic insulation.
In practical operation, have been found that drive unit of the present invention is enough to finish these predeterminated targets and purpose, because it drives ultrasound electric machine by adopting piezoelectric transformer and common piezo inverter, a ultrasound electric machine is being had greatly improved aspect driving precision and the efficient.
Drive unit of the present invention is particularly suited for being applied in the automatic circuit breaker, mainly is drone version, and be suitable for being applied to or interrupted or continuous high pressure piezoelectric actuator in, particularly owing to adopted current piezoelectric transformer.Therefore, the further target of the present invention relates to a kind of automatic circuit breaker, it is characterized in that, it comprises a ultrasound electric machine that is driven by previously described drive unit, and a kind of drive unit that is used for the high pressure piezoelectric actuator, it is characterized in that it comprises at least one piezoelectric transformer.
Therefore, described device allows various adjustment and change, and all adjustment and change are all in context of the present invention; All elements also can further be replaced by element suitable on the function.In practical operation, the material of employing can be any material of choosing with technical field as required, as long as they can adapt with concrete application and possible shape and size.
Claims (9)
1. a drive unit that is used for ultrasound electric machine is characterized in that, it comprises that at least one is used to drive the piezoelectric transformer of ultrasound electric machine.
2. as the drive unit in the claim 1, it is characterized in that it comprises a piezo inverter, this inverter comprises described at least one piezoelectric transformer.
3. as the drive unit in the claim 2, it is characterized in that described piezo inverter comprises two piezoelectric transformers, it is suitable for by the element drives that can send signal, in order to send a pair of voltage that is used to drive this ultrasound electric machine, 90 ° of these signal phase shifts.
4. the drive unit in one or more as described above claims, it is characterized in that, it comprises the element that is used to detect and control described ultrasound electric machine speed, described element is suitable for receiving a described The performance of ultrasonic motor signal of input and a reference speed signal, the described element that is used to detect and control ultrasound electric machine speed is suitable for driving a voltage-controlled oscillator, clock frequency that is suitable for driving a quadrature oscillator of voltage-controlled oscillator output, this quadrature oscillator is in order to drive the described signal that described piezoelectric transformer sends 90 ° of phase shifts in order.
5. as the drive unit in the claim 3, it is characterized in that each described piezoelectric transformer comprises an elementary input electrode and a secondary output electrode.
6. the drive unit in one or more as described above claims is characterized in that described ultrasound electric machine is a rotary ultrasonic motor.
7. the drive unit in one or more as described above claims is characterized in that described ultrasound electric machine is a linear ultrasonic motor.
8. an automatic circuit breaker is characterized in that, it comprises a ultrasound electric machine that is driven by the drive unit in aforementioned one or more claims.
9. a drive unit that is used for the high pressure piezoelectric actuator is characterized in that, it comprises at least one piezoelectric transformer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2001A001571 | 2001-07-23 | ||
| IT2001MI001571A ITMI20011571A1 (en) | 2001-07-23 | 2001-07-23 | DRIVE DEVICE FOR ULTRASONIC ENGINE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1554145A true CN1554145A (en) | 2004-12-08 |
| CN100539385C CN100539385C (en) | 2009-09-09 |
Family
ID=11448118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028025520A Expired - Fee Related CN100539385C (en) | 2001-07-23 | 2002-07-23 | The drive unit that is used for ultrasound electric machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1413043A2 (en) |
| CN (1) | CN100539385C (en) |
| IT (1) | ITMI20011571A1 (en) |
| WO (1) | WO2003010879A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993736A (en) * | 2015-07-03 | 2015-10-21 | 南京航空航天大学 | Ultrasonic motor driving control device and control method |
| CN106787939A (en) * | 2017-03-06 | 2017-05-31 | 北京卫星制造厂 | A kind of high accuracy drive control device of piezoelectric ceramic ultrasonic motor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005038068B3 (en) * | 2005-08-10 | 2006-12-28 | Danfoss A/S | Thermostatic valve e.g. heat or cold valve, attachment for use in bed room, has motor with stator and cone that are displaceable relative to each other by the start-up of motors and utilized for determining motor`s effective length |
| DE102006004289A1 (en) * | 2006-01-31 | 2007-08-02 | Robert Bosch Gmbh | Piezoelectric actuator with integrated piezoelectric transformer |
| JP6291309B2 (en) * | 2014-03-27 | 2018-03-14 | 株式会社フコク | Control device and control method for vibration actuator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5130619A (en) * | 1990-12-26 | 1992-07-14 | Kubota Corporation | Drive control apparatus for an ultrasonic motor |
| JPH05284764A (en) * | 1992-03-31 | 1993-10-29 | Seiko Instr Inc | Ultrasonic actuator using piezoelectric transformer |
| JP2000134962A (en) * | 1998-10-22 | 2000-05-12 | Takata Corp | Driving circuit of ultrasonic motor |
| ATE318451T1 (en) * | 1999-06-04 | 2006-03-15 | Norbert Beyrard France Sarl | SWITCH DRIVEN BY A PIEZOELECTRIC MOTOR |
| JP2002017094A (en) * | 2000-06-29 | 2002-01-18 | Murata Mfg Co Ltd | Ultrasonic motor drive |
-
2001
- 2001-07-23 IT IT2001MI001571A patent/ITMI20011571A1/en unknown
-
2002
- 2002-07-23 EP EP02760278A patent/EP1413043A2/en not_active Withdrawn
- 2002-07-23 CN CNB028025520A patent/CN100539385C/en not_active Expired - Fee Related
- 2002-07-23 WO PCT/EP2002/008324 patent/WO2003010879A2/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993736A (en) * | 2015-07-03 | 2015-10-21 | 南京航空航天大学 | Ultrasonic motor driving control device and control method |
| CN104993736B (en) * | 2015-07-03 | 2017-06-30 | 南京航空航天大学 | A kind of Driven by Ultrasonic Motors control device and control method |
| CN106787939A (en) * | 2017-03-06 | 2017-05-31 | 北京卫星制造厂 | A kind of high accuracy drive control device of piezoelectric ceramic ultrasonic motor |
| CN106787939B (en) * | 2017-03-06 | 2019-06-18 | 北京卫星制造厂 | A kind of high-precision drive control device of piezoelectric ceramic ultrasonic motor |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI20011571A0 (en) | 2001-07-23 |
| CN100539385C (en) | 2009-09-09 |
| WO2003010879A2 (en) | 2003-02-06 |
| WO2003010879A3 (en) | 2003-10-09 |
| EP1413043A2 (en) | 2004-04-28 |
| ITMI20011571A1 (en) | 2003-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1183610C (en) | Driving device for at least two rotation elements, which device comprises at least one piezoelectric driving element | |
| CN1825744A (en) | Piezoelectric ultrasonic motor driver | |
| US7759840B2 (en) | Ultrasonic motor and vibration detection method for ultrasonic motor | |
| US4999536A (en) | Vibrator-type actuator | |
| EP1936707A2 (en) | Ultrasonic motor and drive method therefore | |
| EP0693821A1 (en) | A method for driving an ultrasonic motor | |
| CN1667934A (en) | Composite ultrasonic micromotor with slotted metal square column piezoelectric sheet | |
| CN1453929A (en) | Oscillating wave driving apparatus, oscillating body and driving system for oscillating wave driver | |
| CN1941596A (en) | Piezoelectric actuator, and apparatus and method for actuating the same | |
| CN1554145A (en) | Driving device for ultrasonic motor | |
| CN100403647C (en) | Small linear ultrasonic motor | |
| CN1133265C (en) | Standing wave type self-correcting ultrasonic motor | |
| CN1874134A (en) | Ultrasound electrical motor, and driving method | |
| JPH0636673B2 (en) | Drive | |
| CN201303293Y (en) | Piezoelectric-ultrasonic-and-electromagnetic-drive-combined electric motor | |
| CN103516252A (en) | Dual-mode ultrasonic linear motor with high speed, high resolution ratio and high driving force | |
| US5859490A (en) | Vibration actuator and driving apparatus | |
| CN102714475B (en) | For drive control apparatus and the drived control method of vibration-wave drive device | |
| CN1292601A (en) | Drive method of brushless D.C. motor and its driving circuit | |
| JP2879220B2 (en) | Ultrasonic motor drive circuit | |
| CN101267170A (en) | Dual-drive full arc curve ultrasonic electromotor | |
| EP0582230B1 (en) | Ultrasonic motor | |
| JPH06121552A (en) | Piezoelectric actuator | |
| JPS6026476A (en) | Piezoelectric motor | |
| CN109194189B (en) | Linear ultrasonic motor based on multi-order vibration synthesis and electric excitation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20081226 Address after: Milan Italy Applicant after: ABB AB Address before: Milan Italy Applicant before: ABB Rierca S. P. A. |
|
| ASS | Succession or assignment of patent right |
Owner name: ABBCO., LTD. Free format text: FORMER OWNER: ABB RICERCA SPA Effective date: 20081226 |
|
| 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: 20090909 Termination date: 20110723 |