CN1112759C - Rotary type travelling wave ultrasonic motor, apparatus for driving curtain to be opened or closed using same - Google Patents
Rotary type travelling wave ultrasonic motor, apparatus for driving curtain to be opened or closed using same Download PDFInfo
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- CN1112759C CN1112759C CN 98111421 CN98111421A CN1112759C CN 1112759 C CN1112759 C CN 1112759C CN 98111421 CN98111421 CN 98111421 CN 98111421 A CN98111421 A CN 98111421A CN 1112759 C CN1112759 C CN 1112759C
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- curtain
- ultrasonic motor
- rotary type
- travelling wave
- wave ultrasonic
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- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims abstract description 5
- 229920002521 macromolecule Polymers 0.000 claims abstract 2
- 238000002604 ultrasonography Methods 0.000 claims description 19
- 239000003082 abrasive agent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002783 friction material Substances 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000007767 bonding agent Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention relates to a motor utilizing piezoelectric effect and an electric curtain unfolding/folding device. The present invention provides the rotary type travelling wave ultrasonic motor, piezoelectric elements of the motor adopt two piezoelectric ceramic sheets with the interval of 15 DEG in space, an elastic element is formed by combining a fan-shaped dishing spring and a rubber pad, a wearable pad is made from macromolecule friction material, and adhesive adopts mesothermal electrode glue. Simultaneously, the present invention also provides the curtain unfolding/folding device which is composed of the motor and a drive power supply thereof, a curtain traction mechanism, a curtain bracket, etc. The ultrasonic motor has the advantages of high electromechanical conversion efficiency, high output rotating speed, large torque and long service life. The curtain unfolding/folding device realizes silent operation, and has the advantages of compact structure and smooth drive.
Description
The present invention relates to utilize the motor of piezoelectric effect, and electronic curtain open/close device.
Ultrasound electric machine is a kind of New-type electric machine that grows up nearest more than ten years.It utilizes piezoelectric effect and ultrasonic vibration, is directly changed into motion mechanical energy by electric energy, has advantages such as direct driving, controlled good, noiseless, nonmagnetic, compact conformation.Rotary-type ultrasound electric machine mainly is made up of rotor, stator and piezoelectric element, utilizes piezoelectric element to make the electric energy of input motivate the ultrasonic frequency domain resonance of stator, drives rotor by frictional force then and rotates.But present rotary type travelling wave ultrasonic motor often exists, and electromechanical conversion efficiency is low, output speed and moment of torsion is little, useful life is short defective, bring certain limitation to practical application, general only be used for small-sized, accurate equipment, for example the card transmission of the lens focus of camera, magnetic card machine etc.In electronic curtain open/close device, do not see application as yet.
The object of the present invention is to provide that a kind of electromechanical conversion efficiency height, output speed and moment of torsion are big, the rotary type travelling wave ultrasonic motor of long service life.
Another object of the present invention is to provide a kind of curtain open/close device that utilizes above-mentioned Driven by Ultrasonic Motors.
The rotary type travelling wave ultrasonic motor that the present invention proposes is made up of stator, rotor, rotating shaft, flexible member, base, outer cover and piezoelectric element etc., between stator and the rotor unworn liner is arranged, piezoelectric element links to each other with stator, piezoelectric element adopts two piezoelectric ceramic pieces of 15 ° at interval spatially, and flexible member is combined by the disk spring and the rubber blanket of " fan-shaped ".
Further improvement to above-mentioned ultrasound electric machine is that unworn liner wherein adopts Polymer Friction Materials; Or warm electrode glue piezoelectric ceramic piece and wear-resisting tree pad in adopting; Or both adopt simultaneously.
The curtain open/close device that the present invention proposes is made up of above-mentioned ultrasound electric machine and driving power thereof, curtain haulage gear, Curtain rod etc., the output of ultrasound electric machine directly links to each other with driving wheel in the curtain haulage gear, and the input of ultrasound electric machine links to each other with the output of its driving power.
The basic structure of rotary type travelling wave ultrasonic motor is made up of stator, rotor, rotating shaft, flexible member, base, outer cover and piezoelectric element etc., stator 8, rotor 4, flexible member 2 and 3, base 7 etc. connect together by rotating shaft 6, thereby regulate the tightness acquisition rotor of flexible member and the suitable normal pressure between the stator by securing member 5, so that motor produces good operation conditions; Flexible member originally adopted the spring leaf of " cross ", its pressure distribution is inhomogeneous, shock-absorbing effect is poor, adopt the flexible member that combines by the disk spring 2 of " fan-shaped " and rubber blanket 3 among the present invention, make that pressure distribution is even, shock-absorbing effect is good, thereby rotor operation is steady, can obtain bigger moment of torsion and rotating speed is improved; The unworn liner 9 that is arranged between stator and the rotor adopts suitable friction material to make, can stick on the lower surface of rotor or the upper surface of stator by bonding agent, its effect is to make the be expert at effect of ripple and normal pressure of stator produce down the moment of friction that promotes rotor operation; Piezoelectric element 10 also can be connected with stator by bonding agent, makes stator produce suitable capable ripple under the effect of the electric energy of input piezoelectric element; Piezoelectric element in the past only adopts a slice piezoelectric ceramic piece, the present invention adopts spatially at interval 15 ° of two piezoelectric ceramic pieces and both, promptly pass through spatially at interval 15 ° of the polarity positions of two piezoelectric ceramic pieces of area polarizing, can obtain pure capable ripple like this, thereby obtain very high electromechanical conversion efficiency; Outer cover 1 is fixed on the base by securing member, makes motor become as a whole.
On the basis of technique scheme, the present invention has also adopted HIT-2 type Polymer Friction Materials to make unworn liner.This friction material has good wear resistance and heat-resisting quantity, and its confficient of static friction is more than 0.4, and the heatproof index is normally used efflorescence not yet in 3000 hours more than 100 ℃, thereby can obtain bigger moment of torsion and long useful life.
In addition, the present invention has also adopted in the BH-4 type warm electrode glue to paste piezoelectric ceramic piece and unworn liner.Because its heatproof index is also higher, reach more than 100 ℃, cooperate above-mentioned friction material to use, can obtain long useful life.
Because above-mentioned ultrasound electric machine has realized that electromechanical conversion efficiency height, output speed and moment of torsion are big, long service life, therefore can be used for driving curtain open/close device.Curtain open/close device of the present invention is made up of ultrasound electric machine 14, driving power 11, curtain haulage gear 13, Curtain rod 15 etc., the output of ultrasound electric machine (being the outer end of rotating shaft) driving wheel 12 direct and in the curtain haulage gear is connected, be that machine shaft directly drives load, and do not need as electromagnetic machine, to pass through reduction gearing mechanism, therefore, stable drive, compact conformation, and do not have the noise that electromagnetic machine and reduction gearing mechanism thereof produce; The startup of ultrasound electric machine, turn to rotating speed etc. and controlled by its driving power, driving power adopts the required two-phase power supply of travelling wave supersonic motor, its input links to each other with civil power, output links to each other with the input of ultrasound electric machine, by the action (switch can adopt manual form, also can adopt the form of remote control) of switch control ultrasound electric machine, when ultrasound electric machine is worked, promptly drive the action of curtain haulage gear, thereby drive the folding of curtain 16.
Ultrasound electric machine of the present invention is compared with existing products, and its performance has had large increase, and electromechanical conversion efficiency reaches 45%, and rotating speed reaches 300 rev/mins, and moment of torsion reaches 0.19 Newton meter, reaches no-failure life more than 3000 hours.
Curtain open/close device of the present invention has also been realized quiet work except the performance that has above-mentioned ultrasound electric machine itself concurrently and reached, and compact conformation, stable drive.
The structural representation of the ultrasound electric machine that accompanying drawing 1. the present invention propose.
The structural representation of " fan-shaped " disk spring that is adopted in accompanying drawing 2. ultrasound electric machines.
The structural representation of the curtain open/close device that accompanying drawing 3. the present invention propose.
Involved stator, rotor, rotating shaft, base, outer cover, securing member and curtain haulage gear, Curtain rod etc. are common used material in the structure of the present invention; The diameter of stator is 45 millimeters; Whole disk spring is made up of six " fan-shapeds ", and rubber blanket with matching adopts discoidal silicone rubber pad, makes elasticity and shock absorption better; Unworn liner adopts HIT-2 type Polymer Friction Materials; Bonding agent adopts warm electrode glue in the BH-4 type; Unworn liner sticks on the lower surface of rotor, and piezoelectric element sticks on the lower surface of stator; Piezoelectric ceramic piece adopts PZT9 number, makes performance more superior; Driving power adopts general product to get final product, and switch sections is wherein changed into the form of infrared remote control.
Claims (5)
1, a kind of rotary type travelling wave ultrasonic motor, by stator (8), rotor (4), flexible member (2,3) link together by the securing member (5) that is fixed in the rotating shaft (6) on the base (7) and is loaded on rotating shaft (6) head successively and place in the outer cover (1), wherein outer cover (1) is connected by connector with base (7), stator (8) places on the base (7), unworn liner (9) places between stator (8) and the rotor (4), flexible member (2,3) place on the rotor (4), piezoelectric element (10) is contained in the below of stator (8), it is characterized in that piezoelectric element adopts two piezoelectric ceramic pieces of 15 ° at interval spatially, flexible member is combined with rubber blanket (3) by the disk spring (2) of " fan-shaped ".
2, rotary type travelling wave ultrasonic motor as claimed in claim 1 is characterized in that unworn liner adopts the macromolecule abrasives.
3, rotary type travelling wave ultrasonic motor as claimed in claim 1 or 2, warm electrode glue piezoelectric ceramic piece and unworn liner in it is characterized in that adopting.
4, a kind of curtain open/close device, comprise drive motors (14) and driving power (11) thereof, curtain haulage gear (13), Curtain rod (15), it is characterized in that drive motors adopts rotary type travelling wave ultrasonic motor as claimed in claim 1 or 2, the output of ultrasound electric machine directly links to each other with driving wheel (12) in the curtain haulage gear, and the input of ultrasound electric machine links to each other with the output of its driving power.
5, curtain open/close device as claimed in claim 4 is characterized in that drive motors adopts rotary type travelling wave ultrasonic motor as claimed in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111421 CN1112759C (en) | 1998-07-22 | 1998-07-22 | Rotary type travelling wave ultrasonic motor, apparatus for driving curtain to be opened or closed using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111421 CN1112759C (en) | 1998-07-22 | 1998-07-22 | Rotary type travelling wave ultrasonic motor, apparatus for driving curtain to be opened or closed using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1242645A CN1242645A (en) | 2000-01-26 |
| CN1112759C true CN1112759C (en) | 2003-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111421 Expired - Fee Related CN1112759C (en) | 1998-07-22 | 1998-07-22 | Rotary type travelling wave ultrasonic motor, apparatus for driving curtain to be opened or closed using same |
Country Status (1)
| Country | Link |
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| CN (1) | CN1112759C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102037638A (en) * | 2008-05-27 | 2011-04-27 | 株式会社村田制作所 | Ultrasonic motor |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207520A (en) * | 2015-09-21 | 2015-12-30 | 哈尔滨工业大学 | Rotating type traveling wave ultrasonic motor and stator and rotor pre-tightening method thereof |
| CN105577026A (en) * | 2016-01-08 | 2016-05-11 | 哈尔滨工业大学 | Piezoelectric driven release mechanism |
| WO2017161584A1 (en) * | 2016-03-25 | 2017-09-28 | 深圳万为智能制造科技有限公司 | Electric machine |
| CN105827148B (en) * | 2016-05-26 | 2018-01-12 | 南京航空航天大学 | A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system |
| CN108111054B (en) * | 2017-12-18 | 2019-05-24 | 北京卫星制造厂 | A kind of rotary-type supersonic motor that double elastic polymorphic structures pre-tighten |
-
1998
- 1998-07-22 CN CN 98111421 patent/CN1112759C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102037638A (en) * | 2008-05-27 | 2011-04-27 | 株式会社村田制作所 | Ultrasonic motor |
| CN102037638B (en) * | 2008-05-27 | 2013-10-16 | 株式会社村田制作所 | Ultrasonic motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1242645A (en) | 2000-01-26 |
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| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU CHUNSHENG ULTRASONIC ELECTRIC MACHINE CO., Free format text: FORMER OWNER: NANJING AERO-SPACE UNIVERSITY Effective date: 20090515 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090515 Address after: Southern China two road, Ganyu Economic Development Zone, Lianyungang, Jiangsu Patentee after: Jiangsu TransUSM Co., Ltd. Address before: Yudaojie Nanjing city of Jiangsu Province, No. 29 Patentee before: Nanjing University of Aeronautics and Astronautics |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030625 Termination date: 20130722 |