CN105186921A - Laminated asynchronous electrostatic motor - Google Patents
Laminated asynchronous electrostatic motor Download PDFInfo
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- CN105186921A CN105186921A CN201510619330.3A CN201510619330A CN105186921A CN 105186921 A CN105186921 A CN 105186921A CN 201510619330 A CN201510619330 A CN 201510619330A CN 105186921 A CN105186921 A CN 105186921A
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Abstract
A laminated asynchronous electrostatic motor disclosed by the present invention comprises a stator, a sandwich rotor and a motor chassis, wherein an interdigital stator (1) is electrically connected with a stator lead (7) via a surface insulating connecting member (2) and is in mechanical connection with the motor chassis (6). The rotor is a three-layer structure, the two sides of the rotor are an epoxy resin layers (3) and a surface metal film (5), and the middle is a copper sheet (4). The rotor is electrically connected with a rotor lead (10) via the surface insulating connecting member (2) and is in mechanical connection with a shaft (8). An oil seal bearing (9) sleeves the shaft (8), and the oil seal bearing and the shaft are arranged in the center of an outer end circular surface of the chassis (6) together. The laminated asynchronous electrostatic motor of the present invention uses few metal materials, is light in complete machine weight, can provide an output moment more than mN.m, and is suitable for the industrial field requiring high rotating speed and low torque.
Description
Technical field
The invention belongs to electric field, relate to Machine Design, electrostatic energy coupling process.Specifically by time with the electric field energy of spatial variations, be converted into the mechanical energy that drive rotor rotates.
Background technology
As far back as 19 end of the centurys, people just start the research to electrostatic induction motor, but make slow progress.To 20 century 70s, Gubkin and Jefimenko has invented practical electrostatic motor respectively, but motor output torque is very little.Yasufusa improves the motor of two people, and by the mode at rotor both sides fixed electrical machinery, solve the acarpous problem of rotor, his motor can export micro-ox. the moment of rice.Compare electromagnetic motor, undersized electrostatic motor has larger power/volume ratio.So electrostatic motor is expected to be widely used at microscopic fields.But some documents display in recent years, the electrostatic motor of stepped construction can provide up to ox. the moment of rice, this illustrates at macroscopic arts, and electrostatic motor also can be accomplished something.Current many electromechanical assemblies need the support of non magnetic motor, so study highly significant electrostatic motor.Chinese Patent Application No. is 200910169764.2, publication date: on January 27th, 2010, title: electrostatic induction motor.This invention is synchronous motor, needs to carry out precise hard_drawn tuhes requirement to input voltage and rotor position.
Asynchronous electrostatic motor is the motion utilizing directric relaxation principle to realize, and its control method is all relative simple with realization.Syoyu devises the asynchronous electrostatic motor that can work in atmosphere, operating voltage 1200V, power 2.4mW, and output torque is little, and test lacks quantitative analysis.Up to the present, the asynchronous electrostatic motor of large output torque there is no report.
Summary of the invention
The present invention realizes in view of above-mentioned technical background, and object is to be studied electrostatic motor Problems existing, proposes a kind of stacked asynchronous electrostatic motor, can provide larger power output and moment of torsion.It comprises interdigital stator (1), surface insulation connector (2), epoxy resin layer (3), copper foil (4), metallic film (5), casing (6), stator lead (7), axle (8), sealed-bearing (9) and rotor leading wire (10).Interdigital stator (1) is electrically connected by surface insulation connector (2) and stator lead (7), is mechanically connected with motor casing (6).Stator lead (7) is connected with ac high voltage source.Rotor is three-decker, and both sides are epoxy resin layer (3), surface metal film (5), and centre is copper foil (4), and this sandwich structure improves whole rotor structure intensity.Copper foil (4) is electrically connected by surface insulation connector (2) and rotor leading wire (10), is mechanically connected with axle (8).Rotor leading wire (10) is connected with the earth, in electric system, keep zero potential.Sealed-bearing (9) is enclosed within axle (8), and both are arranged on the center of casing (6) outer end disc together.
The operation principle of asynchronous electrostatic motor is based on directric relaxation phenomenon.When a pair stator lead (7) connects ac high voltage source, form a pair pole of electrostatic motor.After power supply electrifying, interpolar forms the high voltage electric field of alternation.Interdigital stator (1) surface induction goes out the electric charge along with Time and place change.These electric charges, by the air gap between stator and rotor, rotor surface metallic film (5) also induce the electric charge along with Time and place change.Due to the existence of directric relaxation phenomenon, the electric charge on interdigital stator (1) surface and the electric charge of rotor surface metallic film (5) is made to there is phase difference.Air gap between these phase difference and stator and rotor, the epoxy resin layer (3) of rotor both sides, the frequency of external voltage, the number of pole-pairs of motor, the resistivity of rotor surface metallic film (5) is relevant with the radius of electrostatic motor.These parameters of rational design will optimize phase difference, and then affect the electric field between stators and rotators.This electric field, along the component of rotor surface tangential direction, will attract or repel surface charge, finally forming torque, drive rotor to rotate.
In order to increase the Driving Torque of electrostatic motor, the present invention is by interdigital stator (1) and the assembling of rotor stacked on top of one another, and middle maintenance minim gap, and both and axle (8) keeping parallelism, outermost layer is rotor.Around axle (8), multipair pole is installed, multi-polar electrostatic motor can be constructed, form the stator and rotor of a whole ring layer stack structure.
Consider that sheet metal is thinner, stressed easy generation deformation, stator and rotor can not with axle (8) the same length.But output torque is directly proportional to the length of stator and rotor again.So in order to produce larger Driving Torque, the present invention originally will be divided into some isometric segments, the stator and rotor of the stepped construction of the whole circle of every a bit of formation one with axle (8) with the stator and rotor of length.This method can increase the quantity of surface insulation connector (2), adds the consumption of material.But stator and rotor stepped construction is firm, large Driving Torque can be provided again simultaneously.
Compared with prior art, device metal material used is few, and complete machine is lightweight in the present invention, and can provide milli ox. and output torque more than rice, is applicable to the industrial circle requiring high rpm low torque.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is longitudinal sectional schematic diagram of the present invention.
Fig. 2 is schematic cross-sectional view of the present invention.
1. interdigital stators, 2. surface insulation connector, 3. epoxy resin layer, 4. copper foil, 5. metallic film, 6. casing, 7. stator lead, 8. axle, 9. sealed-bearing, 10. rotor leading wire in figure.
Embodiment
Interdigital stator (1) for finger-shaped metal aluminium flake, length be 50 millimeters, width is 10 millimeters, and thickness is 1 millimeter; It is electrically connected by surface insulation connector (2) and stator lead (7), is mechanically connected with motor casing (6).Motor casing (6) radius 200 millimeters, long 1 meter of axle (8), axle radius 20 millimeters;
Stator lead (7) is connected with ac high voltage source, and supply voltage working range is 1000 ~ 2000 volts, and operating frequency is 100 hertz;
Rotor length is 50 millimeters, and width is 10 millimeters; Rotor is three-decker, and both sides are epoxy resin layer (3), and thickness is 3 millimeters, and relative dielectric constant is 3; Surface metal film (5), thickness is 1 millimeter, and the resistance of surface metal film (5) is 5 × 10
8ohm; Centre is copper foil (4), and this sandwich structure improves whole rotor structure intensity.Copper foil (4) is electrically connected by surface insulation connector (2) and rotor leading wire (10), is mechanically connected with axle (8).
Rotor leading wire (10) is connected with the earth, in electric system, keep zero potential.Sealed-bearing (9) is enclosed within axle (8), and both are arranged on the center of casing (6) outer end disc together.
Interdigital stator (1) and the assembling of rotor stacked on top of one another, middle maintenance slight void, the gap of electrostatic motor of the present invention is 1 millimeter, and the dielectric constant of air is 8.85 × 10
-12method/rice.Stator aluminium flake and rotor and axle (8) keeping parallelism.Stacked number is 15 layers, and outermost layer is rotor.Around axle (8), multipair pole is installed, 24 pole electrostatic motors can be constructed, form the stator and rotor of a whole ring layer stack structure.
While producing larger Driving Torque, improve the laser intensity of rotor.The present invention originally will be divided into some isometric segments, the stator and rotor of the stepped construction of the whole circle of every a bit of formation one with axle (8) with the stator and rotor of length.Segment quantity is 18, and the gap length of section and section is 5 millimeters.This method can increase the quantity of surface insulation connector (2), adds the consumption of material.But stator and rotor stepped construction is firm, large Driving Torque can be provided again simultaneously.
As calculated, under the operating voltage of 2000V, the amplitude of interdigital stator surface charge inducing density is 6.37 × 10
-6coulomb/rice
2, and the phase difference of stator surface charge density and rotor surface charge density is 0.138.The amplitude of further calculating rotor surface charge inducing density is 3.16 × 10
-6coulomb/rice
2.The torque that this stacked asynchronous electrostatic motor produces is 0.19 N. rice.
Claims (3)
1. a stacked asynchronous electrostatic motor, it comprises interdigital stator (1), surface insulation connector (2), epoxy resin layer (3), copper foil (4), metallic film (5), casing (6), stator lead (7), axle (8), sealed-bearing (9) and rotor leading wire (10); Interdigital stator (1) is electrically connected by surface insulation connector (2) and stator lead (7), is mechanically connected with motor casing (6); Stator lead (7) is connected with ac high voltage source; Rotor is three-decker, and both sides are epoxy resin layer (3), surface metal film (5), and centre is copper foil (4), and this sandwich structure improves whole rotor structure intensity; Copper foil (4) is electrically connected by surface insulation connector (2) and rotor leading wire (10), is mechanically connected with axle (8); Rotor leading wire (10) is connected with the earth, in electric system, keep zero potential; Sealed-bearing (9) is enclosed within axle (8), and both are arranged on the center of casing (6) outer end disc together.
2. stacked asynchronous electrostatic motor according to claim 1, is characterized in that: interdigital stator (1) and the assembling of rotor stacked on top of one another, middle maintenance minim gap, and both and axle (8) keeping parallelism, and outermost layer is rotor; Around axle (8), multipair pole is installed, multi-polar electrostatic motor can be constructed, form the stator and rotor of a whole ring layer stack structure.
3. stacked asynchronous electrostatic motor according to claim 1, is characterized in that: originally will be divided into some isometric segments, the stator and rotor of the stepped construction of the whole circle of every a bit of formation one with axle (8) with the stator and rotor of length; This method can increase the quantity of surface insulation connector (2), adds the consumption of material; But stator and rotor stepped construction is firm, large Driving Torque can be provided again simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510619330.3A CN105186921B (en) | 2015-09-25 | 2015-09-25 | A kind of stacked asynchronous electrostatic motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510619330.3A CN105186921B (en) | 2015-09-25 | 2015-09-25 | A kind of stacked asynchronous electrostatic motor |
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| Publication Number | Publication Date |
|---|---|
| CN105186921A true CN105186921A (en) | 2015-12-23 |
| CN105186921B CN105186921B (en) | 2017-08-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322082A (en) * | 2018-02-10 | 2018-07-24 | 西安建筑科技大学 | A kind of single-phase capacitance type variable electrostatic motor |
| CN110149071A (en) * | 2019-05-22 | 2019-08-20 | 夏义捷 | A kind of coulomb of force motor and linear acceleration apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409458A (en) * | 2002-08-22 | 2003-04-09 | 哈尔滨工业大学 | Multiple air gap motor |
| WO2010055540A1 (en) * | 2008-11-17 | 2010-05-20 | Achille Zanzucchi Editore Di Achille Zanzucchi | Static electromagnetic apparatus for accelerating electrically neutral molecules utilizing their dipolar electric moment |
| CN201758368U (en) * | 2010-05-10 | 2011-03-09 | 王宏戈 | Electrostatic induction motor |
| CN103780129A (en) * | 2013-05-27 | 2014-05-07 | 国家纳米科学中心 | Rotary electrostatic generator |
-
2015
- 2015-09-25 CN CN201510619330.3A patent/CN105186921B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409458A (en) * | 2002-08-22 | 2003-04-09 | 哈尔滨工业大学 | Multiple air gap motor |
| WO2010055540A1 (en) * | 2008-11-17 | 2010-05-20 | Achille Zanzucchi Editore Di Achille Zanzucchi | Static electromagnetic apparatus for accelerating electrically neutral molecules utilizing their dipolar electric moment |
| CN201758368U (en) * | 2010-05-10 | 2011-03-09 | 王宏戈 | Electrostatic induction motor |
| CN103780129A (en) * | 2013-05-27 | 2014-05-07 | 国家纳米科学中心 | Rotary electrostatic generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322082A (en) * | 2018-02-10 | 2018-07-24 | 西安建筑科技大学 | A kind of single-phase capacitance type variable electrostatic motor |
| CN110149071A (en) * | 2019-05-22 | 2019-08-20 | 夏义捷 | A kind of coulomb of force motor and linear acceleration apparatus |
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| Publication number | Publication date |
|---|---|
| CN105186921B (en) | 2017-08-08 |
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Inventor after: Gong Xiaochun Inventor after: Wang Yiwei Inventor before: Gong Xiaochun |