CN202721592U - Permanent magnet linear motor with high power density - Google Patents
Permanent magnet linear motor with high power density Download PDFInfo
- Publication number
- CN202721592U CN202721592U CN 201220255823 CN201220255823U CN202721592U CN 202721592 U CN202721592 U CN 202721592U CN 201220255823 CN201220255823 CN 201220255823 CN 201220255823 U CN201220255823 U CN 201220255823U CN 202721592 U CN202721592 U CN 202721592U
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- linear motor
- main
- power density
- high power
- pole
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Abstract
The utility model aims to provide a permanent magnet linear motor with high power density. The permanent magnet linear motor comprises a primary structure and a secondary structure. A supporting structure is arranged between the primary structure and the secondary structure. The primary structure comprises a primary iron core and armature windings. The surface of the primary iron core is provided with main wire grooves and end part grooves. The main wire grooves are uniformly distributed along a movement direction of the secondary structure and are communicated with the end part grooves. The armature windings are installed in the main wire grooves and the end part grooves. The secondary structure comprises a secondary iron core, main magnetic poles and auxiliary magnetic poles. The main magnetic poles are installed on the secondary iron core. The number of the main magnetic poles is an even number. The main magnetic poles are in north pole and south pole alternative arrangement along the movement direction of the secondary structure. Two sides of each main magnetic pole are installed with auxiliary magnetic poles with opposite magnetic properties. The armature windings of the utility model have the advantages of high utilization rate and high power density.
Description
Technical field
The utility model relates to 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, the end of armature winding does not participate in energy converting between mechanical, 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 purpose of this utility model is to provide the end that takes full advantage of the armature winding, further improves a kind of permanent-magnetism linear motor of high power density of the runnability of permanent-magnetism linear motor.
The purpose of this utility model is achieved in that
The permanent-magnetism linear motor of a kind of high power density of the utility model, comprise primary structure, secondary structure, it is supporting construction between primary structure and the secondary structure, 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 even number, and main pole is along south, arctic alternative arrangement 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 utility model 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 utility model is:
(1) have the permanent-magnetism linear motor of the utility model feature, 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, (comprise the formed magnetic field of winding conductor that electric current is flowed through and is arranged in the main line groove to form the air gap main field, the formed magnetic field of winding conductor of flowing through and being arranged in end grooves with electric current), whole armature winding has all participated in the energy converting between mechanical process of motor.
(2) has the permanent-magnetism linear motor of the utility model feature, its power density (or being called force density) height.In running, its total electromagnetic force is made 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 formed magnetic field interaction of secondary upper main pole, the electromagnetic force F1 of generation; When electric current flows through the winding conductor that is arranged in end grooves, the magnetic field that electric current produces 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, permanent-magnetism linear motor with the utility model structure can produce larger electromagnetic force, has higher power density.
Description of drawings
Fig. 1 is the utility model direction of motion view;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the vertical view of the primary structure among Fig. 2 when not placing armature winding;
Fig. 4 is elementary among Fig. 2 vertical view when being placed with armature winding;
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 utility model is described 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 utility model 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 as follows 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 relative surface 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 are connected with two end grooves 3 respectively; Armature winding 4 is placed in main line groove 2 and the end grooves 3, and the conductor limit that wherein consists of 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; Be installed with a plurality of secondary unshakable in one's determination 5 with elementary relative surface, and be the main pole 6 of even number, main pole 6 is along secondary direction of motion N, the S utmost point (being south, the arctic in magnetic field) alternative arrangement, and the quantity between main pole 6 and the elementary upper main line groove 2 and the permanent-magnetism linear motor of relative position relation and existing traditional structure are identical; Both sides in each main pole 6, namely 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, be the 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 the number of elementary upper main line groove 2 and secondary upper main pole 6, other physical dimensions can be calculated acquisition by electromagnetism.
Elementary unshakable in one's determination 1 adopts ferromagnetic material to make, and for example silicon steel sheet stack is pressed into.
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 make, and for example silicon steel sheet stack is pressed into.
Supporting construction between the primary and secondary can adopt existing various wheeled supporting construction, magnetic suspension support structure etc.
Permanent-magnetism linear motor with high power density of the utility model feature, can adopt the multiple control modes operation, when running on electronic operating mode take the brushless direct-current linear motor control mode as example: armature winding 4 obtains electric current from peripheral control unit, the magnetic field that electric current forms when flowing through the winding conductor that is arranged in main line groove 2, with secondary upper main pole 6 formed magnetic field interactions, 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 produces and secondary on main pole 6 and auxiliary magnetic pole 7 interact, produce electromagnetic force F2, the elementary iron core in yoke section-end grooves 3 outsides of the elementary iron core-elementary unshakable in one's determination 1 of the elementary iron core-air gap in this part main flux process end grooves 3 outside, magnetic field-7-level 5-main pole 6-air gap-end grooves unshakable in one's determination of auxiliary magnetic pole 3 inboards, and then formation closed-loop path, this Distribution of Magnetic Field has the feature that the horizontal magnetic field motor internal magnetic field distributes, 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 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, as shown in Figure 7.
Claims (5)
1. the permanent-magnetism linear motor of a high power density, comprise primary structure, secondary structure, it is supporting construction between primary structure and the secondary structure, 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 even number, and main pole is along south, arctic alternative arrangement 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 consists of 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 |
|---|---|---|---|
| CN 201220255823 CN202721592U (en) | 2012-06-01 | 2012-06-01 | Permanent magnet linear motor with high power density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255823 CN202721592U (en) | 2012-06-01 | 2012-06-01 | Permanent magnet linear motor with high power density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721592U true CN202721592U (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255823 Expired - Fee Related CN202721592U (en) | 2012-06-01 | 2012-06-01 | Permanent magnet linear motor with high power density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684449A (en) * | 2012-06-01 | 2012-09-19 | 哈尔滨工程大学 | High-power density permanent magnet linear motor |
-
2012
- 2012-06-01 CN CN 201220255823 patent/CN202721592U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684449A (en) * | 2012-06-01 | 2012-09-19 | 哈尔滨工程大学 | High-power density permanent magnet linear motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20140601 |