CN108599518A - A kind of combined type tablet and line inductance electromotor for line inductance electromotor - Google Patents
A kind of combined type tablet and line inductance electromotor for line inductance electromotor Download PDFInfo
- Publication number
- CN108599518A CN108599518A CN201810439500.3A CN201810439500A CN108599518A CN 108599518 A CN108599518 A CN 108599518A CN 201810439500 A CN201810439500 A CN 201810439500A CN 108599518 A CN108599518 A CN 108599518A
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- CN
- China
- Prior art keywords
- tablet
- conductive plate
- line inductance
- inductance electromotor
- combined type
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- 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.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/025—Asynchronous motors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
The invention discloses a kind of combined type tablets and line inductance electromotor for line inductance electromotor, tablet includes conductive plate, magnetic conduction substrate and supporting rack, magnetic conduction substrate is fixed on supporting rack, conductive plate is fixed on magnetic conduction substrate, and the radially uniform of conductive plate upper edge tablet offers several straight slots.The present invention opens up straight slot on the basis of former monoblock type conductive plate along the radially uniform of conductive plate, it allows on conductive plate and forms the structure of similar fence, so that the rectangular flowing of the electric current induced on conductive plate, to keep electric current elongated along the radially uniform effective length flowed through of tablet, avoid the toroidal vortex flow electric current induced on former monoblock type conductive plate, so that tractive force gets a promotion linear motor at the same conditions, and the normal direction electromagnetic attraction between linear motor and tablet is effectively reduced, improve the service efficiency of linear motor.
Description
Technical field
The present invention relates to linear motor field more particularly to a kind of combined type tablet for line inductance electromotor and
Line inductance electromotor.
Background technology
Motor is a kind of device converting electrical energy into mechanical energy or mechanical energy is converted to electric energy.The electricity usually applied
Machine is all electric rotating machine.Linear motor is equivalent to an electric rotating machine prolonging axial split from electric rotating machine evolution
Plane is sprawled into, stator side is the primary of linear motor, and rotor side is the secondary of linear motor.Usually developing
The stator primary come just is linear motor, and tablet is just the rotor secondary that differentiation comes.Research of the people to linear motor
With explore from there is electric rotating machine to begin to, but the limitation of some characteristics due to linear motor causes application not extensive.
The biggest advantage is to electric energy is directly translated into the mechanical kinetic energy of linear motion, Er Feixuan compared with electric rotating machine for linear motor
The rotation function of rotating motor.It can save intermediate kinetic energy switching mechanism in certain specific application scenarios, such as gear-box,
Drive lead screw etc., and linear motor can also transmit kinetic energy in a non contact fashion.The primary length of linear motor, secondary induction plate are short,
Secondary induction plate is along the primary linear motor moved in a straight line long primary short secondary linear motor.Linear motor primary it is short,
Secondary induction plate is long, and the primary of linear motor is moved in a straight line along secondary induction plate, and this linear motor is just named primary long time short
Grade linear motor.With being constantly progressive for technology in recent years, the especially rapid development of electronic technology, alternating frequency conversion technique is increasingly
Maturation allows the application of linear motor to welcome new development again.Some advantage and characteristics of linear motor are presented in again
In face of people.Such as high-speed maglev vehicle is due to eliminating wheel rail system, it is necessary to be drawn using linear motor, aircraft carrier flies
The electromagnetic launch technology of machine, which just uses linear motor and carries out traction propulsion, railcar, can effectively be dropped using linear electric machine traction
The height of low vehicle simplifies the transmission mechanism of vehicle, so that tunnel cross-section area is reduced 40%, effectively reduces project cost.
But some birth defects of linear motor still restrict its application and popularization.Such as due to linear motor air gap with
Electric rotating machine causes the efficiency of linear motor and power factor relatively low, energy consumption is higher compared to bigger than normal.Due to short primary long secondary straight
Coil sections magnetic circuit of the line motor close to rear and front end is to disconnect, and is not carried out magnetic circuit crosslinking, causes to will produce linear motor
Distinctive side-termind effect had both increased the cost and weight of linear motor, and had also added the loss of linear motor.
Linear motor usually all uses the long secondary structure form of short primary.When linear electric motor primary stator passes through secondary induction
When plate, induction plate surface will produce toroidal vortex flow, and the tractive force of linear motor is exactly that toroidal vortex flow generates under motor-field
Ampere force, according to Ampere force calculation formula F=ILB it is found that the size of tractive force and electric current I, magnetic field intensity B in the lower conductor of magnetic field
And flow through effective length L of the conductor of electric current in magnetic field size it is related.From Figure 2 it can be seen that due to incuding on conductive plate
The vortex gone out is in concentration ellipse shape, bigger closer to central current, smaller closer to side end electric current.Electric current is in conductive plate along diameter
Small to the effective length L flowed through, induced current does not obtain sufficiently effective utilization, the cross being similarly in rotary motor rotor
Stream loss is very big, therefore the efficiency of linear motor has larger gap compared with electric rotating machine.
Invention content
Present invention aims at a kind of tablet and line inductance electromotor for line inductance electromotor is provided, to solve
Defect existing in the prior art.
To achieve the above object, the present invention provides a kind of tablet for line inductance electromotor, tablet includes leading
Battery plate, magnetic conduction substrate and supporting rack, magnetic conduction substrate are fixed on supporting rack, and conductive plate is fixed on magnetic conduction substrate, former whole
The radially uniform of formula conductive plate upper edge tablet offers several parallel channels.
Preferably, straight slot is the straight slot of parallel similar fence type.
Preferably, the length of straight slot and the matched line inductance electromotor iron core width of conductive plate are close.
Preferably, it is provided with insulating layer between conductive plate and magnetic conduction substrate.
Preferably, the width of straight slot is the width that straight slot both sides conductor does not conduct.
Preferably, the spacing of straight slot is consistent with the iron core interdental space of line inductance electromotor or close.
Preferably, conductive plate is aluminium sheet or copper coin.
The present invention also provides a kind of linear induction linear motor, tablet is using any of the above-described tablet.
The invention has the advantages that：
Straight slot is opened up on conductive plate so that the rectangular flowing of electric current induced on conductive plate, but also electric current edge
The radially uniform effective length flowed through of tablet is elongated, so that tractive force is carried linear motor at the same conditions
It rises, the normal direction electromagnetic attraction between linear motor and tablet can be reduced effectively, moreover it is possible to effective to improve making for linear motor
Use efficiency.
Below with reference to accompanying drawings, the present invention is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the tablet structure chart of the preferred embodiment of the present invention；
Fig. 2 is the eddy current schematic diagram of common tablet；
Fig. 3 is the tablet vertical view and induced current schematic diagram of the preferred embodiment of the present invention；
Fig. 4 is the induced current schematic diagram of the tablet of the preferred embodiment of the present invention.
In figure, 1, conductive plate；2, magnetic conduction substrate；3, supporting rack.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
The invention discloses a kind of tablet for line inductance electromotor, tablet includes conductive plate 1, magnetic conduction substrate 2
With supporting rack 3, magnetic conduction substrate 2 is fixed on supporting rack 3, and conductive plate 1 is fixed on magnetic conduction substrate 2, and grid are offered on conductive plate 1
Column straight slot.
Referring to Fig. 1, usual line inductance electromotor secondary induction plate is all by 3 groups of conductive plate 1, electrically-conductive backing plate and supporting rack
At.The above is the conductive plate 1 constituted with aluminium sheet or copper coin, and centre is the magnetic conduction substrate 2 for having permeability magnetic material to make, and here is by steel
The structure that frame member is made installs fixing support rack 3.The embodiment of the present invention is radially opened up in 1 upper edge tablet of former monoblock type conductive plate
Several parallel channels as shown in Figure 3, straight slot are arranged in fence type.When linear electric motor primary stator passes through secondary induction plate,
The toroidal vortex flow that should occur on tablet can not form toroidal vortex flow due to the presence of straight slot, be forced to flow along straight slot direction
The rectangular flowing of longitudinal end to conductive plate 1, inductive loop flow regime are as shown in Figure 4.Rectangular-shaped vortex is so that induction
The effective length that electric current flows through in conductive plate 1 is elongated, so that tractive force is carried linear motor at the same conditions
It rises, the normal direction electromagnetic attraction between linear motor and tablet can be reduced effectively, moreover it is possible to effective to improve making for linear motor
Use efficiency.
Preferably, straight slot is along the radial parallel fence type straight slot opened up of tablet.
Preferably, the length of straight slot and line inductance electromotor iron core width are close.Straight slot is too long to cause material sharp
It is reduced with rate, the too short efficiency that can lead to motor reduces.
Preferably, it is additionally provided with insulating layer between conductive plate 1 and magnetic conduction substrate 2.Reduce the cross be connected by magnetic conduction substrate 2
The transverse current of break-through slot reduces the crossing current loss of tablet.
Preferably, the width of straight slot is the width that groove width both sides do not conduct.Since there is electric current stream on straight slot both sides
It crosses, and straight slot both sides have potential difference, in order to avoid two side conductors are switched on, cause electric current lateral flow, need according to reality
Use demand determines groove body width, but should not be too wide.
Preferably, the spacing of straight slot is consistent with the iron core interdental space of linear motor or close.It is too wide or too it is close all
It can cause to incude plate efficiency reduction.
Preferably, the spacing of straight slot is 0.8 times -1.2 times of iron core interdental space of line inductance electromotor.Logical inter-alveolar distance
Should not be too large or it is too small in case influence linear motor service efficiency.
Preferably, conductive plate 1 is aluminium sheet or copper coin.It can need to preferably be played with the excellent aluminium sheet of electric conductivity or copper coin
The performance of linear motor.
The present invention also provides a kind of line inductance electromotor, tablet uses any of the above-described combined type tablet.
Be experimentally confirmed, used the present invention combined type tablet DC induction machine, tractive force compared to
Conventional DC induction machine, which has, greatly to be promoted.Normal direction electromagnetic attraction between linear motor and tablet is compared to ordinary straight
Stream induction machine has obtained effective reduction, and has also obtained greatly carrying compared to the service efficiency of conventional DC induction machine
It rises.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of combined type tablet for line inductance electromotor, the tablet includes conductive plate (1), magnetic conduction substrate (2)
With supporting rack (3), which is characterized in that the magnetic conduction substrate (2) is fixed on supporting rack (3), and the conductive plate (1), which is fixed on, leads
On magnetics substrate (2), the radially uniform of conductive plate (1) upper edge tablet offers several parallel channels.
2. a kind of combined type tablet for line inductance electromotor according to claim 1, which is characterized in that described logical
Slot is along the radial parallel fence type straight slot opened up of tablet.
3. a kind of combined type tablet for line inductance electromotor according to claim 1, which is characterized in that described logical
The length of slot is equal with the iron core width of line inductance electromotor.
4. a kind of combined type tablet for line inductance electromotor according to claim 1, which is characterized in that described to lead
It is additionally provided with insulating layer between battery plate (1) and the magnetic conduction substrate (2).
5. a kind of combined type tablet for line inductance electromotor according to claim 1, which is characterized in that described logical
The width of slot is the width that straight slot both sides conductor does not conduct.
6. a kind of combined type tablet for line inductance electromotor according to claim 1, which is characterized in that described logical
The spacing of slot is 0.8 times -1.2 times of the iron core interdental space of line inductance electromotor.
7. a kind of combined type tablet for line inductance electromotor according to claim 1, which is characterized in that described to lead
Battery plate (1) is aluminium sheet or copper coin.
8. a kind of line inductance electromotor, which is characterized in that its tablet is using any combined type inductions of claim 1-7
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439500.3A CN108599518A (en) | 2018-05-09 | 2018-05-09 | A kind of combined type tablet and line inductance electromotor for line inductance electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810439500.3A CN108599518A (en) | 2018-05-09 | 2018-05-09 | A kind of combined type tablet and line inductance electromotor for line inductance electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108599518A true CN108599518A (en) | 2018-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810439500.3A Pending CN108599518A (en) | 2018-05-09 | 2018-05-09 | A kind of combined type tablet and line inductance electromotor for line inductance electromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108599518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092532A (en) * | 2018-10-24 | 2020-05-01 | 中车株洲电力机车研究所有限公司 | Linear motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07112882A (en) * | 1993-10-18 | 1995-05-02 | Mitsubishi Electric Corp | Linear motor elevator and operation method thereof |
| JP2002078313A (en) * | 2000-08-25 | 2002-03-15 | Nikon Corp | Laminated sheet coil, armature, linear motor, stage equipment using them, exposing apparatus, and method for manufacturing device |
| CN201717770U (en) * | 2010-02-26 | 2011-01-19 | 中铁电气化局集团宝鸡器材有限公司 | Laminated induction plate for linear motor |
| JP2011130527A (en) * | 2009-12-15 | 2011-06-30 | Hitachi Ltd | Reaction plate of linear induction motor |
| CN203859667U (en) * | 2014-03-27 | 2014-10-01 | 株洲南车时代电气股份有限公司 | Linear motor secondary section and linear motor |
| CN105196889A (en) * | 2015-08-22 | 2015-12-30 | 成都佰世成科技有限公司 | Explosion composite induction plate device for linear motor rails |
-
2018
- 2018-05-09 CN CN201810439500.3A patent/CN108599518A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07112882A (en) * | 1993-10-18 | 1995-05-02 | Mitsubishi Electric Corp | Linear motor elevator and operation method thereof |
| JP2002078313A (en) * | 2000-08-25 | 2002-03-15 | Nikon Corp | Laminated sheet coil, armature, linear motor, stage equipment using them, exposing apparatus, and method for manufacturing device |
| JP2011130527A (en) * | 2009-12-15 | 2011-06-30 | Hitachi Ltd | Reaction plate of linear induction motor |
| CN201717770U (en) * | 2010-02-26 | 2011-01-19 | 中铁电气化局集团宝鸡器材有限公司 | Laminated induction plate for linear motor |
| CN203859667U (en) * | 2014-03-27 | 2014-10-01 | 株洲南车时代电气股份有限公司 | Linear motor secondary section and linear motor |
| CN105196889A (en) * | 2015-08-22 | 2015-12-30 | 成都佰世成科技有限公司 | Explosion composite induction plate device for linear motor rails |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092532A (en) * | 2018-10-24 | 2020-05-01 | 中车株洲电力机车研究所有限公司 | Linear motor |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |