CN112202312B - Linear induction motor and motor primary thereof - Google Patents
Linear induction motor and motor primary thereof Download PDFInfo
- Publication number
- CN112202312B CN112202312B CN202011058298.3A CN202011058298A CN112202312B CN 112202312 B CN112202312 B CN 112202312B CN 202011058298 A CN202011058298 A CN 202011058298A CN 112202312 B CN112202312 B CN 112202312B
- Authority
- CN
- China
- Prior art keywords
- winding
- iron core
- motor
- primary
- fixing
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Linear Motors (AREA)
Abstract
The invention discloses a linear induction motor and a motor primary thereof, wherein the motor primary comprises an iron core, a plurality of iron core grooves for placing double-layer windings are arranged on the iron core, the linear induction motor also comprises a winding fixing part for placing single-layer windings positioned on the edges of the double-layer windings, the winding fixing part is positioned at the end part of the iron core, and the winding fixing part is fixedly connected with the iron core. According to the primary motor, the winding fixing part is arranged at the end part of the iron core and used for storing the single-layer winding positioned at the edge, so that the single-layer winding is prevented from being arranged on the iron core, the length of the iron core can be effectively reduced, and the size of the iron core is reduced.
Description
Technical Field
The invention relates to the field of motors, in particular to a motor primary. The invention also relates to a linear induction machine comprising the primary motor.
Background
The linear induction motor is used as a key component of the magnetic suspension train and provides driving force for the train, the linear induction motor is installed at the bottom of the train, a traveling wave magnetic field along the track direction can be generated after three-phase alternating current is conducted, an aluminum plate on the track can generate induced current in the magnetic field, and therefore electromagnetic thrust is generated to drive the train to run. Because there is no friction force of wheel and rail, the maglev train has the environmental protection characteristic of low noise, still have the security high, climbing ability is strong, turning radius is little, construction cost low grade advantage simultaneously, be fit for areas such as city, closely city room, tourist attraction, can replace light rail and subway.
For a medium-low speed magnetic suspension linear induction motor, a double-layer winding is generally adopted, and due to the structural form of the double-layer winding, the phenomenon that only a single coil is arranged in grooves of two end parts can exist after an iron core is cut off, namely, a single-layer winding is adopted, namely, the grooves of the two ends of the iron core are half-filled grooves, and the thrust action of the iron core on the motor is basically negligible.
However, since the weight of the core is heavy and the amount of core material used is large, the manufacturing cost of the linear induction motor is high and the weight is heavy.
Therefore, how to reduce the size of the iron core in the primary of the motor is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a motor primary, which can effectively reduce the length of an iron core and the weight of a motor while meeting the requirement of supporting a winding by replacing two ends of the iron core with winding fixing parts with lower cost. It is another object of the present invention to provide a linear induction motor including the motor primary described above.
In order to achieve the purpose, the invention provides the following technical scheme:
the motor primary comprises an iron core, wherein a plurality of iron core grooves for placing double-layer windings are formed in the iron core, the winding fixing part is used for placing the single-layer windings located on the edges of the double-layer windings and located at the end portion of the iron core, and the winding fixing part is fixedly connected with the iron core.
Preferably, the winding fixing part is a non-metal part.
Preferably, the winding securing member is a plastic laminate member.
Preferably, the winding fixing part is detachably and fixedly connected with the iron core.
Preferably, the winding fixing part is provided with a plurality of winding fixing grooves for placing windings, and the winding fixing grooves are matched with the iron core grooves in shape and size; the sectional shape and size of the winding fixing part conform to the sectional shape and size of the core.
Preferably, a filling part is arranged at an opening of the winding fixing groove, and the filling part is abutted to the single-layer winding in the winding fixing groove.
Preferably, the filling member is a plastic filling member.
Preferably, the winding fixing part is connected with the iron core through at least two fixing plates, and at least one fixing plate is arranged on each of two sides of the winding fixing part or the iron core; the fixing plates extend from the side face of the winding fixing part to the side face of the iron core, and the fixing plates positioned on the two sides of the iron core or the winding fixing part are detachably connected through the double-end stud.
Preferably, the winding fixing parts are a plurality of brackets, and the brackets are connected with the end part of the iron core through bolts; and a binding part for fastening the winding is arranged on the bracket.
The invention also provides a linear induction motor comprising the motor primary.
The primary motor comprises an iron core, wherein a plurality of iron core grooves for placing double-layer windings are formed in the iron core, the winding fixing part is used for placing single-layer windings positioned on the edges of the double-layer windings, the winding fixing part is positioned at the end part of the iron core, and the winding fixing part is fixedly connected with the iron core. According to the primary motor, the winding fixing part is arranged at the end part of the iron core and used for storing the single-layer winding positioned at the edge, so that the single-layer winding is prevented from being arranged on the iron core, the length of the iron core can be effectively reduced, and the size of the iron core is reduced.
The linear induction motor provided by the invention is provided with the motor primary, and the motor primary has the technical effects, so the linear induction motor provided with the motor primary also has the corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic top view of an embodiment of a primary stage of an electric machine according to the present invention;
FIG. 2 is a schematic cross-sectional view A-A of the primary of the motor shown in FIG. 1;
FIG. 3 is a schematic top view of an embodiment of a primary stage of an electric machine according to the present invention;
FIG. 4 is a schematic cross-sectional view A-A of the primary of the motor shown in FIG. 3;
wherein: a winding fixing part-1; a core-2; a stud-3; a fixed plate-4; single-layer winding-5-1; double-layer winding-5-2; a filling member-6; a binding part-7; bolt-8.
Detailed Description
The core of the invention is to provide a motor primary, which replaces two ends of an iron core with winding fixing parts with lower cost, and can effectively reduce the length of the iron core and the weight of the motor while meeting the requirement of supporting a winding. Another core of the present invention is to provide a linear induction motor including the above motor primary.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, fig. 1 is a schematic top view of a primary stage of a motor according to an embodiment of the present invention; FIG. 2 is a schematic cross-sectional view A-A of the primary of the motor shown in FIG. 1; FIG. 3 is a schematic top view of an embodiment of a primary stage of an electric machine according to the present invention; fig. 4 is a schematic view of a cross-sectional a-a structure of the primary of the motor shown in fig. 3.
In this embodiment, the motor primary includes a core 2 and a winding fixing member 1.
The winding fixing part 1 is used for placing the single-layer winding 5-1 positioned at the edge of the double-layer winding 5-2, the winding fixing part 1 is positioned at the end part of the iron core 2, and the winding fixing part 1 is fixedly connected with the iron core 2. Preferably, the winding fixing members 1 are provided at both ends of the core 2, but the winding fixing members 1 may be provided only at one end of the core 2. The end of the core 2 is an end in the direction in which the core grooves are arranged, and the core grooves are arranged in order along the longitudinal direction of the core 2.
According to the primary motor, the winding fixing part 1 is arranged at the end part of the iron core 2, and the winding fixing part 1 is used for storing the single-layer winding 5-1 positioned at the edge, so that the single-layer winding 5-1 is prevented from being arranged on the iron core 2, the length of the iron core 2 can be effectively reduced, and the size of the iron core 2 can be reduced.
In a specific embodiment, the winding fixing member 1 is a non-metallic member. Preferably, the winding securing member 1 is a plastic part, preferably a plastic laminate part. Of course, the motor can also be made of other non-metal materials such as rubber, fiber and the like, and the motor can be made of materials with high strength and light weight, so that the weight of the motor can be effectively reduced, and the cost of the motor can be saved.
More preferably, the winding fixing member 1 is an epoxy resin laminate member.
In a specific embodiment, the winding fixing part 1 is provided with a plurality of winding fixing grooves for placing the windings 5, and the winding fixing grooves are matched with and preferably identical to the shape and size of the iron core groove, so that the arrangement of the windings 5 can be facilitated. Of course, the winding fixing member 1 and the winding fixing groove may be set as needed.
Preferably, the sectional shape and size of the winding fixing member 1 are identical, preferably identical, to the sectional shape and size of the core 2, and that is, the overall shape of the winding fixing member 1 is similar to the shape of the core 2, and thus the fixing between the winding fixing member 1 and the core 2 can be facilitated.
On the basis of the above embodiments, the filling part 6 is arranged at the opening of the winding fixing groove, the filling part 6 abuts against the single-layer winding 5-1 positioned in the winding fixing groove, namely, the filling part 6 and the single-layer winding 5-1 fill the whole winding fixing groove together, so that the single-layer winding 5-1 can be prevented from shaking and falling, and the stability can be maintained.
Specifically, the opening edge of the winding fixing groove and the opening edge of the iron core groove are provided with baffles, so that the winding 5 and the filling part 6 are prevented from falling off.
Preferably, the filling member 6 is a plastic filling member, which may be a plastic laminate, for example.
In addition to the above embodiments, the winding fixing member 1 and the core 2 are detachably fixed to each other, preferably by bolts, but may be fixed by welding or caulking.
In addition to the above embodiments, the winding fixing member 1 and the iron core 2 are connected by at least two fixing plates 4, and at least one fixing plate 4 is provided on each of both sides of the winding fixing member 1 or the iron core 2; the fixing plates 4 extend from the side surface of the winding fixing part 1 to the side surface of the iron core 2, and the fixing plates 4 positioned at the two sides of the iron core 2 or the winding fixing part 1 are detachably connected through the stud bolts 3.
Preferably, the fixing plate 4 is an L-shaped plate or a toothed pressing plate.
In addition to the above embodiments, the winding fixing member 1 is a plurality of brackets, and the brackets are connected to the end bolts 8 of the core 2; the bracket is provided with a binding part 7 for fastening the winding 5. The binding part 7 is preferably a binding belt, so that the binding is convenient and the fixation is firm; the bracket is preferably a plate extending in the longitudinal direction of the core 2, and may be a metal plate or a plastic plate. By utilizing the arrangement of the bracket, the bracket has a simple structure, and the size of the bracket is obviously smaller than that of the iron core, so that the weight of the motor can be effectively reduced, and the cost of the motor can be saved.
In addition to the primary motor, the present invention further provides a linear induction motor including the primary motor, and other structures of the linear induction motor refer to the prior art, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The motor primary of the present invention is described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A motor primary comprises an iron core (2), wherein a plurality of iron core grooves for placing double-layer windings (5-2) are formed in the iron core (2), and the motor primary is characterized by further comprising a winding fixing part (1) for placing single-layer windings (5-1) positioned at the edges of the double-layer windings (5-2), the winding fixing part (1) is positioned at the end part of the iron core (2), and the winding fixing part (1) is fixedly connected with the iron core (2); the winding fixing part (1) is connected with the iron core (2) through at least two fixing plates (4), and at least one fixing plate (4) is arranged on each of two sides of the winding fixing part (1) or the iron core (2); the fixing plates (4) extend from the side faces of the winding fixing parts (1) to the side faces of the iron cores (2), and the fixing plates (4) located on the two sides of the iron cores (2) or the winding fixing parts (1) are detachably connected.
2. The electric machine primary according to claim 1, characterized in that the winding securing part (1) is a non-metallic part.
3. The electric machine primary according to claim 2, characterized in that the winding securing part (1) is a plastic laminate part.
4. The electrical machine primary of claim 1, wherein the winding securing member (1) is removably secured to the core (2).
5. The electric machine primary as claimed in claim 1, characterised in that the winding securing part (1) is provided with winding securing grooves for receiving windings (5), the winding securing grooves conforming to the core groove shape and size; the cross-sectional shape and size of the winding fixing part (1) are matched with the cross-sectional shape and size of the iron core (2).
6. The machine primary of claim 5, characterized in that the opening of the winding fixing groove is provided with a filler part (6), the filler part (6) abutting against the single-layer winding (5-1) located in the winding fixing groove.
7. The electric machine primary according to claim 6, characterized in that the filler part (6) is a plastic filler part.
8. The electric machine primary according to any of claims 1 to 7, characterized in that the fixing plates (4) on both sides of the core (2) or the winding securing part (1) are detachably connected by means of studs (3).
9. A linear induction motor comprising a motor primary, characterized in that the motor primary is as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058298.3A CN112202312B (en) | 2020-09-30 | 2020-09-30 | Linear induction motor and motor primary thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058298.3A CN112202312B (en) | 2020-09-30 | 2020-09-30 | Linear induction motor and motor primary thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112202312A CN112202312A (en) | 2021-01-08 |
| CN112202312B true CN112202312B (en) | 2022-05-27 |
Family
ID=74008252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011058298.3A Active CN112202312B (en) | 2020-09-30 | 2020-09-30 | Linear induction motor and motor primary thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112202312B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752982A (en) * | 2010-01-15 | 2010-06-23 | 中国科学院电工研究所 | Single-sided linear induction motor with light dead-weight |
| CN101783573A (en) * | 2010-03-08 | 2010-07-21 | 东南大学 | Multiphase long-stator primary permanent magnet linear motor |
| CN103904978A (en) * | 2014-04-02 | 2014-07-02 | 华中科技大学 | Linear induction motor drive characteristic analysis equivalent circuit and analysis method |
| CN104995819A (en) * | 2013-02-15 | 2015-10-21 | 西门子公司 | Electric machine having a segmented stator and two-layer winding |
| CN107332427A (en) * | 2017-08-18 | 2017-11-07 | 南京航空航天大学 | Bilateral 180 ° of low-thrusts of side set fluctuate continuous pole permanent magnetic linear synchronous motor |
| CN108683319A (en) * | 2018-06-01 | 2018-10-19 | 哈尔滨理工大学 | Low-speed high-thrust-density double-layer fractional slot winding cylindrical linear |
| CN208522551U (en) * | 2018-05-09 | 2019-02-19 | 株洲市科达电机技术有限公司 | A kind of short preliminary linear induction motor primary stator and a kind of line inductance electromotor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670533A (en) * | 1992-08-07 | 1994-03-11 | Toshiba Corp | Linear motor |
| CN104467353B (en) * | 2014-11-26 | 2016-09-28 | 南车株洲电机有限公司 | A kind of magnetic suspension train, linear electric motors and primary thereof |
-
2020
- 2020-09-30 CN CN202011058298.3A patent/CN112202312B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752982A (en) * | 2010-01-15 | 2010-06-23 | 中国科学院电工研究所 | Single-sided linear induction motor with light dead-weight |
| CN101783573A (en) * | 2010-03-08 | 2010-07-21 | 东南大学 | Multiphase long-stator primary permanent magnet linear motor |
| CN104995819A (en) * | 2013-02-15 | 2015-10-21 | 西门子公司 | Electric machine having a segmented stator and two-layer winding |
| CN103904978A (en) * | 2014-04-02 | 2014-07-02 | 华中科技大学 | Linear induction motor drive characteristic analysis equivalent circuit and analysis method |
| CN107332427A (en) * | 2017-08-18 | 2017-11-07 | 南京航空航天大学 | Bilateral 180 ° of low-thrusts of side set fluctuate continuous pole permanent magnetic linear synchronous motor |
| CN208522551U (en) * | 2018-05-09 | 2019-02-19 | 株洲市科达电机技术有限公司 | A kind of short preliminary linear induction motor primary stator and a kind of line inductance electromotor |
| CN108683319A (en) * | 2018-06-01 | 2018-10-19 | 哈尔滨理工大学 | Low-speed high-thrust-density double-layer fractional slot winding cylindrical linear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112202312A (en) | 2021-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11377325B2 (en) | Linear propulsion system | |
| CA2284571C (en) | Linear motor for driving an elevator car | |
| US5388527A (en) | Multiple magnet positioning apparatus for magnetic levitation vehicles | |
| US10329124B2 (en) | Elevator wireless power supply | |
| US3707924A (en) | Electromagnetic motion imparting means and transportor system embodying the same | |
| US20100269729A1 (en) | Magnetically levitated railway | |
| JP2005525979A (en) | Elevator for passenger transport in particular | |
| CN1976185B (en) | Large power mixed linear motor | |
| US3911828A (en) | Linear-induction motor, e.g. for high-speed magnetic-levitation vehicle | |
| JP2501391B2 (en) | Elevator driven by flat plate type linear motor | |
| KR101069334B1 (en) | Linear motor haviang segment structure magnetic levitation system | |
| CN112202312B (en) | Linear induction motor and motor primary thereof | |
| US20130088099A1 (en) | Generator and Electricity-Generating System | |
| CN100523377C (en) | Track for a railborne vehicle, comprising a long-stator linear drive comprising at least one long stator, and a kit and a stator packet for the production thereof | |
| US20200313481A1 (en) | Electromotive machine | |
| Nicholson | DC & AA traction motors | |
| CN111106732B (en) | Linear motor and primary winding thereof | |
| JP5355372B2 (en) | Linear induction motor reaction plate | |
| EP3719980A1 (en) | Electromotive machine | |
| KR100944690B1 (en) | Secondary structure of linear propulsion system for railway transit and its manufacturing method | |
| CN217478309U (en) | Single-drive double-layer sorting trolley structure with upper-layer and lower-layer connecting devices | |
| CN110190727A (en) | A kind of electric car system based on the driving of Linear Synchronous reluctance motor | |
| JP2011015487A (en) | Electric rolling stock driver | |
| JPH05316710A (en) | Propulsion coil and its mounting method | |
| KR101547904B1 (en) | Apparatus of ground armature coil for coreless-typed LSM and method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |