CN202721591U - Switched reluctance linear motor with high power density - Google Patents
Switched reluctance linear motor with high power density Download PDFInfo
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- CN202721591U CN202721591U CN 201220255804 CN201220255804U CN202721591U CN 202721591 U CN202721591 U CN 202721591U CN 201220255804 CN201220255804 CN 201220255804 CN 201220255804 U CN201220255804 U CN 201220255804U CN 202721591 U CN202721591 U CN 202721591U
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- interpole
- iron core
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Abstract
The utility model aims to provide a switched reluctance linear motor with high power density. The switched reluctance 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, primary main poles, primary auxiliary poles and armature windings. The primary main poles are uniformly installed on the primary iron core along a movement direction of the secondary structure. Two sides of each primary main pole are installed with the primary auxiliary poles. The armature windings are winding coils which are respectively wound around each primary main pole. The secondary structure comprises a secondary iron core, secondary primary poles and secondary auxiliary poles. The secondary primary poles are arrayed along the movement direction of the secondary structure and are mounted on the secondary iron core. The number of the secondary main poles is an even number. The secondary auxiliary poles are arranged at two ends of each secondary primary pole. 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 can bring adverse influence to the operation of motor, 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 switched relutance linear motor of high power density of the runnability of switched relutance linear motor.
The purpose of this utility model is achieved in that
The switched relutance 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, elementary main pole, elementary interpole, armature winding, elementary main pole is installed on the elementary iron core uniformly along the direction of motion of secondary structure, elementary interpole is all installed in the both sides of each elementary main pole, and armature winding is that winding coil is wound on respectively on each elementary main pole; Secondary structure comprises secondary iron core, secondary main pole, secondary interpole, and secondary main pole is arranged and is installed on the secondary iron core along the direction of motion of secondary structure, and the number of secondary main pole is even number, all arranges secondary interpole at the two ends of each secondary main pole.
The utility model can also comprise:
1, respectively increases again the elementary interpole of an elementary main pole and both sides thereof at vertical two ends of elementary iron core, do not have coiling armature winding on described two elementary main poles.
2, the width of elementary interpole is identical with the width of elementary main pole, and the width of secondary interpole is identical with the width of secondary main pole.
3, described elementary iron core, elementary main pole, elementary interpole are integrated; Described secondary iron core, secondary main pole, secondary interpole are integrated.
Advantage of the present utility model is:
(1) have the switched relutance 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 the conventional switch magnetic resistance linear electric motors winding, in the running of motor, the electric current of armature winding of flowing through is fully utilized, to form air gap main field (being specially described three magnetic-field components of operation principle), whole armature winding has all participated in the energy converting between mechanical process of motor.
(2) has the switched relutance 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 three parts, therefore compares with existing other switched relutance linear motors, and the switched relutance linear motor with the utility model structure can produce larger electromagnetic force, has higher power density.
Description of drawings
Fig. 1 is direction of motion view of the present utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the primary structure vertical view among Fig. 2;
Fig. 4 is the AA profile of Fig. 3;
Fig. 5 is the upward view of the secondary structure among Fig. 2.
Embodiment
For example the utility model is described in more detail below in conjunction with accompanying drawing:
Execution mode 1:
In conjunction with Fig. 1～5, the switched relutance linear motor of a kind of tool high power density that the utility model proposes, formation from the motor main body, identical with existing conventional switch magnetic resistance linear electric motors, all be by the supporting construction between secondary, the primary and secondary of elementary, the salient-pole structure of the salient-pole structure that is placed with armature winding, and the composition such as position transducer.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 the elementary main pole 2 of a plurality of protrusions is installed, elementary main pole 2 evenly distributes along the secondary direction of motion; On elementary unshakable in one's determination 1, both sides at each elementary main pole 2, namely in plane of movement perpendicular to the direction of the direction of motion, be separately installed with the elementary interpole 3 of protrusion, the width of elementary interpole 3, be the length of the direction of motion, identical with elementary main pole 1, armature winding 4 is made of the heterogeneous winding coil that is wound on respectively on each elementary main pole 2, and correlation and the winding method of armature winding and elementary (or stator) protrusion utmost point are basic identical in the correlation of armature winding 4 and elementary main pole 2 and concrete winding method and the existing switched reluctance machines; Consider the straight-line characteristics of linear electric motors, in order to reduce vertically (being the direction of motion) end effect, vertical two ends elementary unshakable in one's determination 1 respectively increase an elementary main pole 2 again, and the elementary interpole 3 of both sides, but do not have the winding coil of coiling armature winding 4 on these two elementary main poles 2.
(2) secondary structure.Secondary unshakable in one's determination 5 is slab construction; Be installed with a plurality of protrusions secondary unshakable in one's determination 5 with elementary relative surface, and be the secondary main pole 6 of even number, secondary main pole 6 is arranged along the secondary direction of motion, secondary main pole 6 with elementary on elementary main pole 1 between quantity and the switched relutance linear motor of relative position relation and existing traditional structure identical; Both sides at each secondary main pole 6, namely in plane of movement perpendicular to the direction of the direction of motion, be placed with respectively secondary interpole 7, the width of secondary interpole 7, be the length of the direction of motion, identical with secondary main pole 6, the locus of secondary interpole 7 with elementary on the locus of elementary interpole 3 along corresponding perpendicular to the normal orientation of plane of movement.
Switched relutance linear motor with high power density of the utility model feature can adopt the controller of existing switched relutance linear motor and control mode to move.A certain phase or polyphase windings in the armature winding 4 obtain electric current from peripheral control unit, this electric current is in the magnetic field of motor internal formation, difference according to magnetic flux path, can resolve into is the synthetic of three magnetic fields: the magnetic flux path in first magnetic field is, polarity be the elementary main pole 2-air gap-close on polarity of the N utmost point (arctic) be the secondary main pole 6-secondary of the elementary main pole 2 of the N utmost point unshakable in one's determination 5-close on polarity and be the secondary main pole 6-air gap of the elementary main pole 2 of the S utmost point (South Pole)-polarity and be the S utmost point elementary main pole 2-elementary 1-polarity unshakable in one's determination is the elementary main pole 2 of the N utmost point, the formation of this magnetic field magnetic circuit and characteristic distributions are identical with the magnetic signature of the switched relutance linear motor inside of existing conventional structure, according to the magnetic resistance minimum principle, can produce an electromagnetic force F1 secondary, under the effect of electromagnetic force F1, the secondary position that will move to this magnetic circuit reluctance minimum; The magnetic flux path in second magnetic field is, polarity is that the elementary main pole 2-air gap-close on polarity of the N utmost point is that these secondary main pole 6 right sides of 6-level 5-unshakable in one's determination of secondary main pole of the elementary main pole 2 of the N utmost point (stand in the place ahead of collateral motion direction, right side when secondary) elementary main pole 2 right sides that secondary interpole 7-air gap-polarity is the N utmost point (stand in the place ahead of collateral motion direction, right side when secondary) the elementary main pole 2 that the elementary 1-polarity unshakable in one's determination of elementary interpole 3-is the N utmost point, the formation of this magnetic field magnetic circuit and characteristic distributions are identical with the magnetic signature of switched relutance linear motor (or switched reluctance machines) inside of existing transverse magnetic field, according to the magnetic resistance minimum principle, can produce an electromagnetic force F2 secondary, under the effect of electromagnetic force F2, the secondary position that will move to this magnetic circuit reluctance minimum; The magnetic flux path in the 3rd magnetic field is, polarity is that the elementary main pole 2-air gap-close on polarity of the N utmost point is that these secondary main pole 6 left sides of 6-level 5-unshakable in one's determination of secondary main pole of the elementary main pole 2 of the N utmost point (stand in the place ahead of collateral motion direction, towards secondary time left side) secondary interpole 7-air gap-polarity be that elementary main pole 2 left sides of the N utmost point (stand in the place ahead of collateral motion direction, left side when secondary) elementary interpole 3-elementary 1-polarity unshakable in one's determination is the elementary main pole 2 of the N utmost point, the formation of this magnetic field magnetic circuit and characteristic distributions are identical with the magnetic signature of switched relutance linear motor (or switched reluctance machines) inside of existing transverse magnetic field, according to the magnetic resistance minimum principle, can produce an electromagnetic force F3 secondary, under the effect of electromagnetic force F3, the secondary position that will move to this magnetic circuit reluctance minimum.Electromagnetic force F1, F2 are identical with the F3 direction, under the effect of these three electromagnetic forces, secondary setting in motion, variation along with secondary location, the continuous commutation of 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, drives secondary continuous motion, realizes energy converting between mechanical.
With reference to the method for designing of existing switched relutance linear motor, choose the elementary main pole 2 that elementary main pole 2(does not comprise two longitudinal ends) and the number of secondary main pole 6 and the number of phases and the winding method of armature winding 4, 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.
Elementary main pole 2 adopts ferromagnetic materials to make, and can adopt the method such as welding to be fixed on elementary unshakable in one's determination 1.
Armature winding 4 adopts the enamelled wire coiling, and the winding method of each phase winding is identical with existing switched relutance 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.
Secondary main pole 6 adopts ferromagnetic materials to make, and can adopt the method such as welding to be fixed on secondary unshakable in one's determination 5.
Supporting construction between the primary and secondary can adopt existing various wheeled supporting construction, magnetic suspension support structure etc.
The adoptable kind of position transducer is identical with existing switched reluctance machines with mounting means.
Execution mode 2:
On the basis of execution mode 1, elementary unshakable in one's determination 1, elementary main pole 2 and elementary interpole 3 adopt the ferromagnetic material integral body to process.
Secondary unshakable in one's determination 5, secondary main pole 6 and secondary interpole 7 adopt the ferromagnetic material integral body to process.
Claims (5)
1. the switched relutance 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, elementary main pole, elementary interpole, armature winding, elementary main pole is installed on the elementary iron core uniformly along the direction of motion of secondary structure, elementary interpole is all installed in the both sides of each elementary main pole, and armature winding is that winding coil is wound on respectively on each elementary main pole; Secondary structure comprises secondary iron core, secondary main pole, secondary interpole, and secondary main pole is arranged and is installed on the secondary iron core along the direction of motion of secondary structure, and the number of secondary main pole is even number, all arranges secondary interpole at the two ends of each secondary main pole.
2. the switched relutance linear motor of a kind of high power density according to claim 1, it is characterized in that: respectively increase again the elementary interpole of an elementary main pole and both sides thereof at vertical two ends of elementary iron core, do not have coiling armature winding on described two elementary main poles.
3. the switched relutance linear motor of a kind of high power density according to claim 1 and 2, it is characterized in that: the width of elementary interpole is identical with the width of elementary main pole, and the width of secondary interpole is identical with the width of secondary main pole.
4. the switched relutance linear motor of a kind of high power density according to claim 1 and 2, it is characterized in that: described elementary iron core, elementary main pole, elementary interpole are integrated; Described secondary iron core, secondary main pole, secondary interpole are integrated.
5. the switched relutance linear motor of a kind of high power density according to claim 3, it is characterized in that: described elementary iron core, elementary main pole, elementary interpole are integrated; Described secondary iron core, secondary main pole, secondary interpole are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255804 CN202721591U (en) | 2012-06-01 | 2012-06-01 | Switched reluctance linear motor with high power density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255804 CN202721591U (en) | 2012-06-01 | 2012-06-01 | Switched reluctance linear motor with high power density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721591U true CN202721591U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255804 Withdrawn - After Issue CN202721591U (en) | 2012-06-01 | 2012-06-01 | Switched reluctance linear motor with high power density |
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| Country | Link |
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| CN (1) | CN202721591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684448A (en) * | 2012-06-01 | 2012-09-19 | 哈尔滨工程大学 | Switched reluctance linear motor with high power density |
-
2012
- 2012-06-01 CN CN 201220255804 patent/CN202721591U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684448A (en) * | 2012-06-01 | 2012-09-19 | 哈尔滨工程大学 | Switched reluctance linear motor with high power density |
| CN102684448B (en) * | 2012-06-01 | 2014-06-25 | 哈尔滨工程大学 | Switched reluctance linear motor with high power density |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130206 Effective date of abandoning: 20140625 |
|
| RGAV | Abandon patent right to avoid regrant |