CN102684449A - High-power density permanent magnet linear motor - Google Patents
High-power density permanent magnet linear motor Download PDFInfo
- Publication number
- CN102684449A CN102684449A CN201210178036XA CN201210178036A CN102684449A CN 102684449 A CN102684449 A CN 102684449A CN 201210178036X A CN201210178036X A CN 201210178036XA CN 201210178036 A CN201210178036 A CN 201210178036A CN 102684449 A CN102684449 A CN 102684449A
- Authority
- CN
- China
- Prior art keywords
- main
- power density
- linear motor
- line groove
- main line
- 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.)
- Pending
Links
Images
Landscapes
- Linear Motors (AREA)
Abstract
The invention aims to provide a high-power density permanent magnet linear motor, which comprises a primary structure and a secondary structure. A support structure is arranged between the primary structure and the secondary structure. The primary structure comprises a primary core and an armature winding, wherein main wire casings and end part grooves are reserved on the surface of the primary core; the main wire casings are uniformly distributed along the movement direction of the secondary structure, and are communicated with the end part grooves; and the armature winding is arranged in the main wire casings and the end part grooves. The secondary structure comprises a secondary core, an even number of main magnetic poles and auxiliary magnetic poles, wherein the main magnetic poles are arranged on the secondary core, and are arranged along the movement direction of the secondary structure in an S-N alternating way; and the auxiliary magnetic poles are arranged on the two sides of each main magnetic poles, and the magnetisms of the auxiliary magnetic poles are opposite to those of the main magnetic pole. The utilization rate of the armature winding is high, and power density is high.
Description
Technical field
What the present invention relates to is a kind of motor, specifically linear electric motors.
Background technology
Existing various linear electric motors; Its armature winding has the end inevitably, but in actual moving process, energy converting between mechanical is not participated in the end of armature winding; The end magnetic field that electric current produces when flowing through the end; Operation to motor can bring adverse influence, and the existence of winding overhang, also can cause the increase of motor weight, volume.The decline of power density.
Summary of the invention
The object of the present invention is to provide the end that makes full use of the armature winding, further improve a kind of permanent-magnetism linear motor of high power density of the runnability of permanent-magnetism linear motor.
The objective of the invention is to realize like this:
The permanent-magnetism linear motor of a kind of high power density of the present invention; Comprising primary structure, secondary structure, is supporting construction between primary structure and the secondary structure, and it is characterized in that: primary structure comprises elementary iron core, armature winding; Elementary surface unshakable in one's determination offers main line groove and end grooves; The main line groove evenly distributes along the direction of motion of secondary structure, and the main line groove is connected with end grooves, and armature winding is installed in main line groove and the end grooves; Secondary structure comprises secondary iron core, main pole, auxiliary magnetic pole; Main pole is installed on the secondary iron core; The number of main pole is an even number, and main pole is alternately arranged along south, the arctic on the direction of motion of secondary structure, and the auxiliary magnetic pole opposite with its magnetic installed in the both sides of each main pole.
The present invention can also comprise:
1, the width of auxiliary magnetic pole is identical with main pole.
2, the conductor limit of the coil of formation armature winding is placed in the main line groove, and overhang is placed in the end grooves.
3, the end of described main line groove extends to the outside of end grooves.
Advantage of the present invention is:
(1) have the permanent-magnetism linear motor of characteristic of the present invention, the utilance of its armature winding is high.In its armature winding, do not have the end in traditional permanent-magnetism linear motor winding; In the running of motor; The electric current of armature winding of flowing through is fully utilized; To form air gap main field (comprise flow through electric current the formed magnetic field of winding conductor that the formed magnetic field of winding conductor that is arranged in the main line groove and electric current flow through and be arranged in end grooves), whole armature winding has all been participated in the energy converting between mechanical process of motor.
(2) has the permanent-magnetism linear motor of characteristic of the present invention, its power density (or being called force density) height.In running, its total electromagnetic force is made up of two parts: the magnetic field that electric current forms when flowing through the winding conductor that is arranged in the main line groove, with the secondary formed magnetic field interaction of main pole, the electromagnetic force F1 of generation of going up; When electric current flows through the winding conductor that is arranged in end grooves; The magnetic field that electric current produced and secondary on main pole and auxiliary magnetic pole interact; The electromagnetic force F2 that produces; Therefore compare with existing other permanent-magnetism linear motors, the permanent-magnetism linear motor with structure of the present invention can produce bigger electromagnetic force, has higher power density.
Description of drawings
Fig. 1 is a direction of motion view of the present invention;
Fig. 2 is the end view of Fig. 1;
Vertical view when Fig. 3 does not place armature winding for the primary structure among Fig. 2;
Vertical view when Fig. 4 is placed with armature winding for elementary among Fig. 2;
Fig. 5 is the AA profile of Fig. 4;
Fig. 6 is the upward view of the secondary structure among Fig. 2;
Fig. 7 groove of serving as theme extends to the primary structure in the end grooves outside.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
Execution mode 1:
In conjunction with Fig. 1～6; The permanent-magnetism linear motor of a kind of tool high power density that the present invention proposes; Formation from the motor main body; Identical with existing traditional permanent-magnetism linear motor, all be by be placed with armature winding elementary, the secondary of permanent magnetism magnetic pole is installed, and compositions such as supporting construction between the primary and secondary.Main difference is to be that concrete structure is following on the concrete structure of primary and secondary:
(1) primary structure.Elementary unshakable in one's determination 1 is slab construction; Elementary unshakable in one's determination 1 with secondary facing surfaces on offer a plurality of main line grooves 2, main line groove 2 evenly distributes along the secondary direction of motion; The two ends of all main line grooves 2 all connect respectively at two end grooves 3; Armature winding 4 is placed in main line groove 2 and the end grooves 3, and the conductor limit that wherein constitutes the coil of armature winding 4 is placed in the main line groove 2, and overhang is placed in the end grooves 3.
(2) secondary structure.Secondary unshakable in one's determination 5 is slab construction; Secondary unshakable in one's determination 5 with elementary facing surfaces on be installed with a plurality of; And be the main pole 6 of even number; Main pole 6 is alternately arranged along secondary direction of motion N, the S utmost point (being south, the arctic in magnetic field), and main pole 6 is identical with the permanent-magnetism linear motor of the elementary upward quantity between the main line groove 2 and relative position relation and existing traditional structure; Both sides in each main pole 6; Promptly in plane of movement perpendicular to the direction of the direction of motion; Be placed with polarity auxiliary magnetic pole 7 in contrast, the width of auxiliary magnetic pole 7, the i.e. length of the direction of motion; Identical with main pole 6, auxiliary magnetic pole 7 and elementary unshakable in one's determination 1 is positioned at the core portion in end grooves 3 outsides (inboard of two end grooves 3 serve as theme groove 2 regions) along corresponding perpendicular to the normal direction of plane of movement.
Choose elementary main line groove 2 and the secondary number of going up main pole 6 gone up, other physical dimensions can obtain through electromagnetism calculating.
Elementary unshakable in one's determination 1 adopts ferromagnetic material to process, and for example silicon steel plate stacking is processed.
Armature winding 4 adopts the enamelled wire coiling, and the winding method of each phase winding is identical with existing permanent-magnetism linear motor with the space placement location.
Secondary unshakable in one's determination 5 adopt ferromagnetic material to process, and for example silicon steel plate stacking is processed.
Supporting construction between the primary and secondary can adopt existing various wheeled supporting construction, magnetic suspension supporting construction etc.
Permanent-magnetism linear motor with high power density of characteristic of the present invention; Can adopt the multiple control modes operation; Be example when running on electronic operating mode with brushless direct-current linear electric motors control mode: armature winding 4 obtains electric current from peripheral control unit, and the magnetic field that electric current forms when flowing through the winding conductor that is arranged in main line groove 2 is with the secondary main pole 6 formed magnetic field interactions of going up; Produce electromagnetic force F1, the mechanism that electromagnetic force F1 produces and traditional permanent-magnetism linear motor are identical; When electric current flows through the winding conductor that is arranged in end grooves 3, the magnetic field that electric current produced and secondary on main pole 6 interact with auxiliary magnetic pole 7, produce electromagnetic force F2; This part magnetic field main flux is through the elementary iron core in yoke portion-end grooves 3 outsides of the elementary iron core-elementary unshakable in one's determination 1 of elementary iron core-air gap-7-level of auxiliary magnetic pole 5-main pole 6-air gap-end grooves unshakable in one's determination 3 inboards in end grooves 3 outsides; And then the formation closed-loop path, this Distribution of Magnetic Field has the characteristic that the horizontal magnetic field motor internal magnetic field distributes, and electromagnetic force F1 is identical with the F2 direction; Under the effect of these two electromagnetic forces; Secondary setting in motion, along with the continuous commutation of the electric current in the armature winding 4, the formed magnetic field of the electric current in the armature winding 4 is (direction of motion of motor) motion constantly forward; Drive secondary continuous motion, realize energy converting between mechanical.
Execution mode 2:
On the basis of execution mode 1, on elementary unshakable in one's determination 1, main line groove 2 extends to the outside of end grooves 3, and is as shown in Figure 7.
Claims (5)
1. the permanent-magnetism linear motor of a high power density; Comprising primary structure, secondary structure, is supporting construction between primary structure and the secondary structure, and it is characterized in that: primary structure comprises elementary iron core, armature winding; Elementary surface unshakable in one's determination offers main line groove and end grooves; The main line groove evenly distributes along the direction of motion of secondary structure, and the main line groove is connected with end grooves, and armature winding is installed in main line groove and the end grooves; Secondary structure comprises secondary iron core, main pole, auxiliary magnetic pole; Main pole is installed on the secondary iron core; The number of main pole is an even number, and main pole is alternately arranged along south, the arctic on the direction of motion of secondary structure, and the auxiliary magnetic pole opposite with its magnetic installed in the both sides of each main pole.
2. the permanent-magnetism linear motor of a kind of high power density according to claim 1, it is characterized in that: the width of auxiliary magnetic pole is identical with main pole.
3. the permanent-magnetism linear motor of a kind of high power density according to claim 1 and 2 is characterized in that: the conductor limit that constitutes the coil of armature winding is placed in the main line groove, and overhang is placed in the end grooves.
4. the permanent-magnetism linear motor of a kind of high power density according to claim 1 and 2, it is characterized in that: the end of described main line groove extends to the outside of end grooves.
5. the permanent-magnetism linear motor of a kind of high power density according to claim 3, it is characterized in that: the end of described main line groove extends to the outside of end grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178036XA CN102684449A (en) | 2012-06-01 | 2012-06-01 | High-power density permanent magnet linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178036XA CN102684449A (en) | 2012-06-01 | 2012-06-01 | High-power density permanent magnet linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102684449A true CN102684449A (en) | 2012-09-19 |
Family
ID=46815953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210178036XA Pending CN102684449A (en) | 2012-06-01 | 2012-06-01 | High-power density permanent magnet linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102684449A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62126856A (en) * | 1985-11-27 | 1987-06-09 | Shinko Electric Co Ltd | Linear motor |
| US6495934B1 (en) * | 1998-03-13 | 2002-12-17 | Nikon Corporation | Method of manufacturing linear motor, linear motor, stage apparatus equipped with linear motor and exposure apparatus |
| CN101882856A (en) * | 2009-12-24 | 2010-11-10 | 哈尔滨工业大学 | Inter-phase electromagnetic decoupling flat permanent magnet synchronous straight line motor |
| CN202721592U (en) * | 2012-06-01 | 2013-02-06 | 哈尔滨工程大学 | Permanent magnet linear motor with high power density |
-
2012
- 2012-06-01 CN CN201210178036XA patent/CN102684449A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62126856A (en) * | 1985-11-27 | 1987-06-09 | Shinko Electric Co Ltd | Linear motor |
| US6495934B1 (en) * | 1998-03-13 | 2002-12-17 | Nikon Corporation | Method of manufacturing linear motor, linear motor, stage apparatus equipped with linear motor and exposure apparatus |
| CN101882856A (en) * | 2009-12-24 | 2010-11-10 | 哈尔滨工业大学 | Inter-phase electromagnetic decoupling flat permanent magnet synchronous straight line motor |
| CN202721592U (en) * | 2012-06-01 | 2013-02-06 | 哈尔滨工程大学 | Permanent magnet linear motor with high power density |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103715945B (en) | A kind of 12/14 bearing-free permanent magnet biased witch reluctance motor | |
| CN102223036B (en) | Hybrid excitation E-shaped iron core axial magnetic field permanent magnet brushless motor | |
| CN102255470B (en) | LPMSM (linear permanent magnet synchronous motor) with low-thrust fluctuation | |
| US8564228B2 (en) | Electric machine | |
| CN105189326A (en) | Linear motor stator core for self-propelled elevator | |
| CN102306995A (en) | Permanent magnet biased bearingless switched reluctance motor | |
| CN101783574A (en) | Annular winding segmented permanent magnet synchronous linear motor | |
| CN104967276A (en) | Liquid-cooling iron-coreless permanent-magnet linear motor | |
| CN109921592B (en) | Mixed excitation motor rotor structure suitable for modular production | |
| CN104167897A (en) | Flat-plate-type transverse magnetic flux switching permanent magnet linear motor | |
| CN105490414A (en) | Permanent magnet rotor and permanent magnet motor | |
| CN104333150A (en) | Halbach permanent magnet array of convex magnetic block | |
| CN102255471B (en) | Linear switch magnetic flux permanent magnet motor with low location force and high thrust | |
| CN109768634A (en) | A method of enhancing motor outputting torsion | |
| CN107493004A (en) | A kind of modularization cylindrical permanent linear synchronous motor | |
| CN105305771A (en) | Transverse flux mutual inductance coupling linear switched reluctance motor | |
| CN102082490A (en) | High-thrust permanent magnet direct drive linear electric motor | |
| CN102570772A (en) | Magnetism regulating type permanent magnetic linear synchronous motor | |
| CN202721592U (en) | Permanent magnet linear motor with high power density | |
| CN102306996B (en) | Cylindrical linear motor | |
| CN113746298B (en) | Thrust fluctuation optimization design method for moving-magnet type primary discontinuous segmented linear motor | |
| CN104201858A (en) | Multiphase linear reluctance motor | |
| CN202721591U (en) | Switched reluctance linear motor with high power density | |
| CN102684449A (en) | High-power density permanent magnet linear motor | |
| CN102097916B (en) | Long-stroke DC linear motor and control system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |