CN203537200U - Double-stator cylindrical linear motor of magnetic circuit series-connection type - Google Patents
Double-stator cylindrical linear motor of magnetic circuit series-connection type Download PDFInfo
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- CN203537200U CN203537200U CN201320601087.9U CN201320601087U CN203537200U CN 203537200 U CN203537200 U CN 203537200U CN 201320601087 U CN201320601087 U CN 201320601087U CN 203537200 U CN203537200 U CN 203537200U
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- iron core
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- permanent magnets
- magnetic circuit
- permanent magnet
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Abstract
The utility model discloses a double-stator cylindrical linear motor of a magnetic circuit series-connection type, and the motor comprises an inner stator ring and an outer stator ring which are in a salient pole structure. A rotor ring is disposed between the inner and outer stator rings which respectively consist of a primary iron core, armature windings, and permanent magnets. Each primary iron core consists of a plurality of E-shaped iron cores which have the same structures and are arranged along the axial direction. The permanent magnets are respectively embedded between two adjacent E-shaped iron cores in a fixed manner. The tooth of the center of the E-shaped iron cores is a fault-tolerant tooth. All permanent magnets are excited along the axial direction, and the excitation directions of two adjacent permanent magnets are opposite. The polarities of all permanent magnets, which are disposed on the inner stator ring, from the left to the right along the axial direction are opposite to the polarities of all permanent magnets, which are disposed on the outer stator ring, from the left to the right along the axial direction. The interior of each groove of each E-shaped iron core is provided with one circular pie-shaped armature winding in an embedded manner, and the armature windings are in series connection to form an A phase and a B phase. The motor provided by the utility model is high in utilization rate. The permanent magnet motor is high in index of force and energy, is small in size, and is light in weight.
Description
Technical field
The utility model relates to machine field, is specifically related to a kind of pair of stator cylinder type structure of the linear motion actuator.
Background technology
The thrust that two stator cylinder type linear electric motors produce than common cylindrical linear is large.Existing pair of stator cylinder type linear electric motors mainly contain two kinds at present: a kind of is two stator cylinder type line inductance electromotors, its elementary inside and outside stator lays respectively at outside in mover, stator and mover form by iron core, on two stators, be all wound with winding, than magneto, induction machine power density is less.Another kind is two stator cylinder type linear vibration motors of transverse magnetic flux, and two stator core ring is placed on the outside of mover core side by side, and what its double-stator structure adopted is parallel type structure.
Chinese Patent Application No. is 201210181050.5, name is called " complementary pair of stator cylinder type linear electric motors of detent force ", the double-stator structure of concentric type is applied in cylinder permanent magnetic line motor, two track rings are placed in respectively to mover ring inner side and outside, the magnetic circuit that in subring decided at the higher level but not officially announced, permanent magnet produces is through mover ring internal air gap, mover ring medial surface tooth, mover yoke portion, follower medial surface tooth passes through mover ring internal air gap and gets back to internal stator again, thereby forms the inner magnetic circuit of mover, the magnetic circuit that on external stator ring, permanent magnet produces is through the outside air gap of mover ring, mover ring lateral surface tooth, mover yoke portion, then follower lateral surface tooth passes through the outside air gap of mover ring and get back to external stator ring, thereby forms the outside magnetic circuit of mover, the inside and outside magnetic circuit of mover ring is form in parallel, the electric machine structure of this pair of stator is placed in one of them stator the part of mover ring hollow, take full advantage of mover hollow space volume, be conducive to improve pushing force density, yet because the inner magnetic circuit of mover ring and outside magnetic circuit are form in parallel, separate, all to form magnetic loop through mover ring yoke portion, make mover ring yoke portion essential, and to there be enough volumetric spaces to provide magnetic flux path to two magnetic circuits, so, the double-stator structure of this magnetic path parallel connection type makes motor radial space utilance not high, radial space is larger.
Summary of the invention
The purpose of this utility model is in order to overcome existing magnetic circuit, to be the shortcoming of two stator cylinder type linear electric motors of parallel form, the two stator cylinder type linear electric motors of a kind of magnetic circuit tandem type are proposed, reduce the radial space size of motor, improve motor radial space utilance.
The technical solution adopted in the utility model is: the subring decided at the higher level but not officially announced, the external stator ring that comprise salient-pole structure, between inside and outside track ring, there is mover ring, subring decided at the higher level but not officially announced is comprised of the first elementary iron core, the first armature winding and the first permanent magnet, the first elementary iron core is comprised of the identical E font iron core of arranging vertically of a plurality of structures, in the middle of adjacent two E font iron cores, be fixedly embedded with the first permanent magnet, the tooth of an E font iron core middle is the first fault-tolerant teeth; External stator ring is comprised of the second elementary iron core, the second armature winding and the second permanent magnet, the second elementary iron core is comprised of identical the 2nd E font iron core of arranging vertically of a plurality of structures, at adjacent two middle fixedly embedding the second permanent magnets of the 2nd E font iron cores, the tooth of the 2nd E font iron core middle is the second fault-tolerant teeth; All permanent magnets are excitation vertically all, and the excitation direction of two adjacent permanent magnets is contrary, each first permanent magnet vertically polarity from left to right and each second permanent magnet polarity is from left to right contrary vertically; In each groove of each E font iron core, be all embedded with the first armature winding of round pie, be all embedded with the second armature winding of round pie in each groove of each the 2nd E font iron core, first, second armature winding series connection forms A phase and B phase.
The utility model adopts the beneficial effect having after such scheme to be:
1, the utility model is applied to cylinder permanent magnetic line motor by the double-stator structure of concentric type, and space availability ratio is high, and magneto energy index is high, volume is little, lightweight.Linear electric motors drive the wear problem of having avoided drive disk assembly in electric rotating machine driving process, have extended the useful life of parts, are applicable to need the occasion of high reliability.
2, the reciprocating motion of low speed, can produce larger power output again simultaneously, is suitable for the occasion of low speed, high-torque requirement.
3, the structure of two stators is fully utilized mover hollow space space, than single stator motor, is conducive to improve power density.
4, the inside and outside magnetic circuit of mover becomes the form of series connection, has saved and has been positioned at the middle mover yoke portion of two stators, thereby dwindled motor length radially, reaches the object that reduces volume, is conducive to improve pushing force density.
5, permanent magnet and winding are all placed on stator, and mover is without permanent magnet without winding, and simple in structure, reliability is strong.
6, on track ring, introduce fault-tolerant teeth, make magnetic circuit between phase and phase separate, very little on other phase winding impacts when certain phase winding breaks down, improved the reliability of motor and the ability operating with failure, and physical isolation between phase and phase, magnetic circuit decoupling zero.
Accompanying drawing explanation
Fig. 1 is the half sectional view of the two stator cylinder type straight-line electric owner TV structures of magnetic circuit tandem type described in the utility model;
In Fig. 1: 1. subring decided at the higher level but not officially announced; 2. external stator ring; 3. mover ring; Permanent magnet in 4-1. subring decided at the higher level but not officially announced; Permanent magnet in 4-2. external stator ring; Armature winding in 5-1. pilot trench decided at the higher level but not officially announced; Armature winding in 5-2. external stator groove; 6. mover magnetic guiding loop; Fault-tolerant teeth in 7-1. subring decided at the higher level but not officially announced; Fault-tolerant teeth on 7-2. external stator ring; E font iron core in 8-1. subring decided at the higher level but not officially announced; E font iron core on 8-2. external stator ring; 9. elementary iron core;
Fig. 2 is the no-load magnetic field distribution map of the two stator cylinder type linear electric motors of magnetic circuit tandem type described in the utility model.
Fig. 3 is the oscillogram of two opposite potential of the two stator cylinder type linear electric motors of magnetic circuit tandem type described in the utility model;
Fig. 4 is self-induction and the mutual inductance figure of the two stator cylinder type linear electric motors of magnetic circuit tandem type described in the utility model;
Fig. 5 is the oscillogram of the detent force of the two stator cylinder type linear electric motors of magnetic circuit tandem type described in the utility model;
Fig. 6 is that to pass into amplitude be the thrust oscillogram producing after the sinusoidal current of 2A to the two stator cylinder type linear electric motors of magnetic circuit tandem type described in the utility model.
Embodiment
The magnetic circuit tandem type double-stator permanent magnet linear electric motors of a two-phase of take are example, referring to Fig. 1.The utility model comprises the subring decided at the higher level but not officially announced 1 of salient-pole structure, the external stator ring 2 of salient-pole structure and be placed in the mover ring 3 between inside and outside track ring 1,2, subring 1 decided at the higher level but not officially announced is comprised of elementary iron core 9-1, armature winding 5-1 and permanent magnet 4-1, external stator ring 2 is comprised of elementary iron core 9-2, armature winding 5-2 and permanent magnet 4-2, mover ring 3 by a plurality of vertically separately the independent magnetic guiding loops 6 of arranging form, magnetic guiding loop 6 is made as permalloy by soft magnetic material.
Elementary iron core 9-1 is comprised of the identical E font iron core 8-1 arranging vertically of a plurality of structures, and at the middle fixedly embedding permanent magnet 4-1 of adjacent two E font iron core 8-1, the tooth of E font iron core 8-1 middle is fault-tolerant teeth 7-1.The number that forms the E font iron core 8-1 of elementary iron core 9-1 can be determined according to integrated conditions such as number of motor phases, motor length, performance requirements.Elementary iron core 9-2 is comprised of the identical E font iron core 8-2 arranging vertically of a plurality of structures, and at the middle fixedly embedding permanent magnet 4-2 of adjacent two E font iron core 8-2, the tooth of E font iron core 8-2 middle is fault-tolerant teeth 7-2.
Permanent magnet is excitation vertically, the direction of magnetization is axial direction, the direction of moving along mover, the direction excitation of cylinder center's axle, the excitation direction of two adjacent permanent magnets is contrary, and axially two adjacent permanent magnets are that N, S, S, N distribute between two relatively according to polarity.Wherein the polarity of each permanent magnet 4-1 in subring 1 decided at the higher level but not officially announced is followed successively by N, S, S, N vertically from left to right, N, S, S, N ... and in external stator ring 2 polarity of each permanent magnet 4-2 polarity is from left to right contrary with the polarity of permanent magnet 4-1 successively vertically, for S, N, N, S, S, N, N, S ...
In each groove of each E font iron core 8-1 of subring 1 decided at the higher level but not officially announced, be all embedded with the armature winding 5-1 of round pie, in each groove of each E font iron core 8-2 of external stator ring 2, be all embedded with the armature winding 5-2 of round pie.As armature winding 5-1, the 5-2 series connection marking in Fig. 1 in each groove of alphabetical A forms A phase, armature winding 5-1, the 5-2 series connection in each groove of mark letter b forms B phase, and A, B two phase windings adopt independently H bridge to control, and form two-phase induction motor.
Elementary iron core 9-1 and the elementary iron core 9-2 permalloy that conductivity is low by magnetic permeability is high are made, and all magnetic guiding loops 6 adopt epoxy resin to water into a whole mover ring 3 together.
Referring to Fig. 2, Fig. 2 shows no-load magnetic field distribution map of the present utility model, in Fig. 2, can find out, the magnetic field in mover ring 3 interior outsides is together in series through middle mover iron block, and the effective magnetic field of formation is without mover yoke portion, so, mover yoke portion can save, the effective like this motor axial space that reduced, has dwindled motor size, has improved pushing force density.
Referring to Fig. 3, Fig. 3 shows two opposite potential figure of the present utility model, and as seen from Figure 3, two opposite potential become sinusoidal rule to change.
Referring to Fig. 4, Fig. 4 shows self-induction of the present utility model and mutual inductance, and as seen from Figure 4, mutual inductance between phase and phase can be ignored than self-induction, illustrates that the introducing of fault-tolerant teeth in the utility model can reduce magnetic circuit coupling between phase and phase effectively.
Referring to Fig. 5, Fig. 5 shows detent force oscillogram of the present utility model, and as can be seen from Figure 5, detent force amplitude of the present utility model is less.
Referring to Fig. 6, Fig. 6 shows and passes into amplitude is the thrust oscillogram producing after the sinusoidal current of 2A.As can be seen from Figure 6, the thrust amplitude that the utility model produces is larger, is suitable for the application scenario of low-speed high-thrust.
Claims (4)
1. two stator cylinder type linear electric motors of a magnetic circuit tandem type, comprise salient-pole structure in, external stator ring (1, 2), in, external stator ring (1, 2) between, there is mover ring (3), it is characterized in that: subring decided at the higher level but not officially announced (1) is by the first elementary iron core (9-1), the first armature winding (5-1) and the first permanent magnet (4-1) form, the first elementary iron core (9-1) is comprised of the identical E font iron core (8-1) of arranging vertically of a plurality of structures, in the middle of adjacent two E font iron cores (8-1), be fixedly embedded with the first permanent magnet (4-1), the tooth of the one E font iron core (8-1) middle is the first fault-tolerant teeth (7-1), external stator ring (2) is comprised of the second elementary iron core (9-2), the second armature winding (5-2) and the second permanent magnet (4-2), the second elementary iron core (9-2) is comprised of identical the 2nd E font iron core (8-2) of arranging vertically of a plurality of structures, at adjacent two middle fixedly embedding the second permanent magnets (4-2) of the 2nd E font iron cores (8-2), the tooth of the 2nd E font iron core (8-2) middle is the second fault-tolerant teeth (7-2), all permanent magnets are excitation vertically all, and the excitation direction of two adjacent permanent magnets is contrary, each first permanent magnet (4-1) vertically polarity from left to right and each second permanent magnet (4-2) polarity is from left to right contrary vertically, in each groove of each E font iron core (8-1), be all embedded with first armature winding (5-1) of round pie, in each groove of each the 2nd E font iron core (8-2), be all embedded with second armature winding (5-2) of round pie, first, second armature winding (5-1,5-2) series connection forms A phase and B phase.
2. two stator cylinder type linear electric motors of a kind of magnetic circuit tandem type according to claim 1, is characterized in that: mover ring (3) by a plurality of vertically separately the independent magnetic guiding loops (6) of arranging form.
3. two stator cylinder type linear electric motors of a kind of magnetic circuit tandem type according to claim 2, is characterized in that: all magnetic guiding loops 96) adopt epoxy resin to water into mover ring (3).
4. two stator cylinder type linear electric motors of a kind of magnetic circuit tandem type according to claim 1, is characterized in that: first, second elementary iron core (9-1,9-2) is made by permalloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601087.9U CN203537200U (en) | 2013-09-27 | 2013-09-27 | Double-stator cylindrical linear motor of magnetic circuit series-connection type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601087.9U CN203537200U (en) | 2013-09-27 | 2013-09-27 | Double-stator cylindrical linear motor of magnetic circuit series-connection type |
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| Publication Number | Publication Date |
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| CN203537200U true CN203537200U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320601087.9U Withdrawn - After Issue CN203537200U (en) | 2013-09-27 | 2013-09-27 | Double-stator cylindrical linear motor of magnetic circuit series-connection type |
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| CN (1) | CN203537200U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490574A (en) * | 2013-09-27 | 2014-01-01 | 江苏大学 | Magnetic circuit series double-stator cylindrical linear motor |
| CN104052234A (en) * | 2014-06-10 | 2014-09-17 | 江苏大学 | Five-phase cylindrical fault-tolerant permanent magnet linear actuator for driving vehicle electromagnetic suspension |
| CN106887908A (en) * | 2016-11-16 | 2017-06-23 | 南方电机科技有限公司 | A kind of stator, motor, motor and control device, equipment |
| CN107947522A (en) * | 2017-12-14 | 2018-04-20 | 南京工业大学 | A kind of drum type brake bisalient-pole permanent-magnet linear motor |
-
2013
- 2013-09-27 CN CN201320601087.9U patent/CN203537200U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490574A (en) * | 2013-09-27 | 2014-01-01 | 江苏大学 | Magnetic circuit series double-stator cylindrical linear motor |
| CN103490574B (en) * | 2013-09-27 | 2016-04-27 | 江苏大学 | Magnetic circuit tandem type bimorph transducer cylindrical linear |
| CN104052234A (en) * | 2014-06-10 | 2014-09-17 | 江苏大学 | Five-phase cylindrical fault-tolerant permanent magnet linear actuator for driving vehicle electromagnetic suspension |
| CN104052234B (en) * | 2014-06-10 | 2016-04-27 | 江苏大学 | A kind of electromagnetic vehicle suspension drives by the fault-tolerant permanent-magnet linear actuator of five phase cylinder types |
| CN106887908A (en) * | 2016-11-16 | 2017-06-23 | 南方电机科技有限公司 | A kind of stator, motor, motor and control device, equipment |
| WO2018090935A1 (en) * | 2016-11-16 | 2018-05-24 | 南方电机科技有限公司 | Stator, motor, electric motor and control device, and device |
| CN106887908B (en) * | 2016-11-16 | 2019-03-29 | 南方电机科技有限公司 | A kind of stator, motor, motor and control equipment, equipment |
| CN107947522A (en) * | 2017-12-14 | 2018-04-20 | 南京工业大学 | A kind of drum type brake bisalient-pole permanent-magnet linear motor |
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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: 20140409 Effective date of abandoning: 20160427 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |