CN101499707A - Primary permanent magnet type linear motor for urban railway traffic - Google Patents
Primary permanent magnet type linear motor for urban railway traffic Download PDFInfo
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- CN101499707A CN101499707A CNA2009100244556A CN200910024455A CN101499707A CN 101499707 A CN101499707 A CN 101499707A CN A2009100244556 A CNA2009100244556 A CN A2009100244556A CN 200910024455 A CN200910024455 A CN 200910024455A CN 101499707 A CN101499707 A CN 101499707A
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Abstract
The invention provides a primary permanent magnetic linear motor used for urban rail transit, comprising a primary structure (1) and a secondary structure (2), both of which adopt salient structures; wherein, the primary structure (1) comprises a primary iron core (5), a permanent magnet (3) and an armature winding (4); the permanent magnet (3) is arranged on the primary iron core (5); the armature winding (4) is wound on a primary gear; the primary structure (1) is arranged on a train; and the secondary structure (2) is a magneto-conductive steel rail which is arranged on a train rail. The armature winding (4) adopts an integrated winding structure; and the permanent magnet (3) is arranged between the primary gears or on the surface of the primary yoke part or the primary gear part and can be used for the field of urban rail transit. The primary permanent magnetic linear motor comprises a primary structure with the armature winding, the permanent magnetic pole and the iron core which are arranged on the train, and a primary steel rail which is laid along the guideway line; the structure is simple so that the installation and maintenance are convenient. The primary permanent magnetic linear motor can reduce the cost of the rail transit, improve the efficiency of the motor and have extremely high theoretic and practical values.
Description
Technical field
The present invention relates to electrician, motor, field of track traffic, refer in particular to a kind of novel permanent magnetic linear electric motors that are applicable to urban track traffic.
Background technology
Intensive along with quickening of urbanization process and urban construction thing, the urban rapid railway vehicles such as subway, light rail rely on its low energy consumption, of low pollution, advantage such as punctual, are bringing into play important effect in the sustainable development of city.And meanwhile, urban track traffic has also obtained association area scholar's concern more and more widely with the research of traction electric machine.
With regard to technological layer, electrified city rail traction electric machine mainly can adopt these two kinds of technological approaches of electric rotating machine and linear electric motors.Adopt the city rail electric car of linear electric motors, electric energy is directly changed into straight-line mechanical energy, and without any need for the transmission device of intermediate conversion mechanism, can avoid sliding variety of issue with idling products; In addition, linear electric motors are compared to electric rotating machine, have reduced bodywork height, can reduce the subway work amount, thereby reduce construction cost.Therefore, the linear electric motors that are used for city rail traffic have research and practical value.
Current, technical field mainly contains line inductance electromotor and linear synchronous generator to city rail traffic with the research of linear electric motors, and the latter can be divided into electric field excitation linear synchronous generator and permanent magnet linear synchronous motor.Wherein, it is more that line inductance electromotor is used, but there is deficiency in it at aspects such as power factor, power densities.Therefore, the track traffic permanent-magnetism linear motor that research has high power density seems particularly important.Permanent magnet linear synchronous motor has the two-fold advantage of magneto and linear electric motors concurrently, compares with line inductance electromotor, and the energy index height of permanent magnet linear synchronous motor, volume are little, in light weight, and have the dynamic brake function.But it also exists some shortcomings, lays winding conducting wire or permanent magnet as needs in the rail side, and adding the earth has increased project cost.
Adopt the research of the rotary stator permanent magnetic type electric of biconvex electrode structure to start from middle nineteen nineties in last century, develop into now, multiple electric machine structure has appearred, mainly contain these three kinds of structures of flux switch permanent magnet motor, doubly salient permanent magnet motor and magnetic flux reverse motor, its permanent magnet places between stator tooth respectively, stator yoke portion and adopt the stator salient poles surface mount.The appearance of such motor is for the research of the linear permanent-magnet motor of new structure is laid a good foundation.
Summary of the invention
Technical problem: the objective of the invention is on the basis of improving electric efficiency, reduce the cost of motor manufacturing and maintenance, fundamental characteristics in conjunction with rotary stator permanent magnetic type electric, propose a kind of primary permanent magnet type linear motor for urban railway traffic, be particularly suitable for the application in fields such as urban track traffic.
Technical scheme: the present invention changes on the basis of traditional rotary biconvex electrode structure stator permanent magnetic type electric.Its structure is equivalent to rotary stator permanent magnetic type electric cutting is launched into linearity, the permanent magnet of motor and armature winding all place elementary the stator of electric rotating machine (promptly corresponding to) of linear electric motors, and the common permeability magnetic material of secondary employing of these linear electric motors is layed in the rail of train.Therefore, the present invention has reduced motor cost when improving linear electric motors efficient.
This motor comprises elementary, secondary, all adopts salient-pole structure; Elementary elementary iron core, permanent magnet and the armature winding of comprising, permanent magnet is arranged on the elementary iron core, and armature winding is around on the elementary tooth, elementary being placed on the train; Secondary is the magnetic conductivity rail, is placed on the train rail.Armature winding adopts concentrates winding construction; Permanent magnet is placed in elementary between cog, elementary yoke portion or elementary tooth portion surface.
Beneficial effect: the primary permanent magnet type linear motor for urban railway traffic of biconvex electrode structure have simple in structure, power density is high, low cost and other advantages, can be used for fields such as city rail traffic.
1, the simple salient-pole structure of secondary employing, no winding, brushless, no permanent magnetism are suitable for occasions such as track traffic, do not need to lay permanent magnet or lead winding on the track, can reduce the motor manufacturing cost, and are easy to construction;
2, the armature winding on elementary is centralized winding, and it is convenient to make rule;
3, permanent magnet places elementaryly, has inherited the advantage of magneto high power density;
4, adopt the municipal rail train of this kind structure of the linear motion actuator, reduced construction cost;
5, permanent magnet can place elementary between cog, yoke portion and adopt surface mount, and the permanent magnetism magnetic linkage that can design motor according to actual needs is unipolarity or bipolarity, and the back electromotive force that can design motor is sine wave and trapezoidal wave.
Description of drawings
Fig. 1 is one of primary permanent magnet type linear motor---permanent magnet places elementary between cog,
Fig. 2 is two of a primary permanent magnet type linear motor---permanent magnet places elementary yoke portion,
Fig. 3 is three of a primary permanent magnet type linear motor---permanent magnet adopts primary surface to mount;
Have among the above figure: elementary 1, secondary 2, permanent magnet 3, armature winding 4, elementary iron core 5, secondary iron core 6.
Embodiment
Primary permanent magnet type linear motor for urban railway traffic proposed by the invention, its elementary, secondary salient-pole structure that all adopts, Fig. 1-3 is depicted as the primary permanent magnet type linear motor of three kinds of biconvex electrode structures, and permanent magnet places elementary between cog, yoke portion respectively and adopts surface mount.This electric motor primary is made up of iron core, armature winding and permanent magnet, and they are installed on the track train; Both do not had winding not have permanent magnet on secondary yet, made the salient pole shape, placed the rail side by permeability magnetic material.
Placing the primary permanent magnet type linear motor of elementary between cog with a permanent magnet is example, and its sectional view as shown in Figure 1.Linear permanent-magnet motor of the present invention by elementary 1, secondary 2 and be fixed on permanent magnet 3 on elementary 1, armature winding 4, elementary iron core 5 and secondary on secondary iron core 6 formed.Wherein, be furnished with salient pole on elementary 1, permanent magnet 3 is symmetrically distributed in the between cog of elementary 1 salient pole.Elementary 1 is combined by elementary iron core 5 of " U " type and permanent magnet 3.Armature winding 4 on elementary 1 is for concentrating winding, and each coil windings is across on two teeth, and the centre is embedded with a permanent magnet 3.Secondary 2 have a plurality of teeth, and quantity is determined by track length.The enough punchings of elementary iron core 5 usefulness laminate, and the conducting magnet core part has all adopted domestic D23 material punching commonly used to press folded forming; Secondary iron core 6 adopts permeability magnetic material as rail, places the train rail side.
Claims (2)
1, a kind of primary permanent magnet type linear motor for urban railway traffic is characterized in that this motor comprises elementary (1), secondary (2), all adopts salient-pole structure; Elementary (1) comprises elementary iron core (5), permanent magnet (3) and armature winding (4), and permanent magnet (3) is arranged on the elementary iron core (5), and armature winding (4) is around on the elementary tooth, and elementary (1) is placed on the train; Secondary (2) are the magnetic conductivity rail, are placed on the train rail.
2, according to the described primary permanent magnet type linear motor for urban railway traffic of claim 1, it is characterized in that armature winding (4) adopts concentrated winding construction; Permanent magnet (3) is placed in elementary between cog, elementary yoke portion or elementary tooth portion surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100244556A CN101499707A (en) | 2009-02-23 | 2009-02-23 | Primary permanent magnet type linear motor for urban railway traffic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100244556A CN101499707A (en) | 2009-02-23 | 2009-02-23 | Primary permanent magnet type linear motor for urban railway traffic |
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| CN101499707A true CN101499707A (en) | 2009-08-05 |
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| CNA2009100244556A Pending CN101499707A (en) | 2009-02-23 | 2009-02-23 | Primary permanent magnet type linear motor for urban railway traffic |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764497A (en) * | 2010-02-11 | 2010-06-30 | 哈尔滨工业大学 | Two-sided permanent magnet synchronous linear motor with integrated winding structure |
| CN102157309A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Long-stroke linear permanent magnet motor operation mechanism of high-voltage breaker |
| CN102157310A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Linear permanent magnet motor operating mechanism of high-voltage circuit breaker |
| CN103296857A (en) * | 2013-06-24 | 2013-09-11 | 南京航空航天大学 | Double-edge staggered teeth flat type flux switching permanent magnet linear motor |
| CN103618429A (en) * | 2013-12-09 | 2014-03-05 | 东南大学 | Permanent-magnet linear motor and motor module comprising same |
| CN104079140A (en) * | 2014-03-17 | 2014-10-01 | 肖俊东 | Silicon steel sheet, iron core linear motor, linear motor platform and LED testing and sorting device |
| CN104201858A (en) * | 2014-07-08 | 2014-12-10 | 哈尔滨工业大学 | Multiphase linear reluctance motor |
| CN106451991A (en) * | 2016-10-08 | 2017-02-22 | 华中科技大学 | Stator permanent magnet movable iron core type linear oscillation motor |
| CN107465327A (en) * | 2017-07-07 | 2017-12-12 | 南京航空航天大学 | Electric excitation biconvex electrode linear electric motors |
-
2009
- 2009-02-23 CN CNA2009100244556A patent/CN101499707A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764497A (en) * | 2010-02-11 | 2010-06-30 | 哈尔滨工业大学 | Two-sided permanent magnet synchronous linear motor with integrated winding structure |
| CN101764497B (en) * | 2010-02-11 | 2011-11-09 | 哈尔滨工业大学 | Two-sided permanent magnet synchronous linear motor with integrated winding structure |
| CN102157309A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Long-stroke linear permanent magnet motor operation mechanism of high-voltage breaker |
| CN102157310A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Linear permanent magnet motor operating mechanism of high-voltage circuit breaker |
| CN102157309B (en) * | 2011-04-20 | 2013-03-20 | 东南大学 | Long-stroke linear permanent magnet motor operation mechanism of high-voltage breaker |
| CN102157310B (en) * | 2011-04-20 | 2013-04-03 | 东南大学 | Linear permanent magnet motor operating mechanism of high-voltage circuit breaker |
| CN103296857A (en) * | 2013-06-24 | 2013-09-11 | 南京航空航天大学 | Double-edge staggered teeth flat type flux switching permanent magnet linear motor |
| CN103618429A (en) * | 2013-12-09 | 2014-03-05 | 东南大学 | Permanent-magnet linear motor and motor module comprising same |
| CN104079140A (en) * | 2014-03-17 | 2014-10-01 | 肖俊东 | Silicon steel sheet, iron core linear motor, linear motor platform and LED testing and sorting device |
| CN104201858A (en) * | 2014-07-08 | 2014-12-10 | 哈尔滨工业大学 | Multiphase linear reluctance motor |
| CN106451991A (en) * | 2016-10-08 | 2017-02-22 | 华中科技大学 | Stator permanent magnet movable iron core type linear oscillation motor |
| CN106451991B (en) * | 2016-10-08 | 2020-06-05 | 华中科技大学 | Stator permanent magnet type moving iron core type linear oscillation motor |
| CN107465327A (en) * | 2017-07-07 | 2017-12-12 | 南京航空航天大学 | Electric excitation biconvex electrode linear electric motors |
| CN107465327B (en) * | 2017-07-07 | 2019-07-09 | 南京航空航天大学 | Electric excitation biconvex electrode linear motor |
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Open date: 20090805 |