CN101527494A - Flat plate type linear motor - Google Patents
Flat plate type linear motor Download PDFInfo
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- CN101527494A CN101527494A CN200910135723A CN200910135723A CN101527494A CN 101527494 A CN101527494 A CN 101527494A CN 200910135723 A CN200910135723 A CN 200910135723A CN 200910135723 A CN200910135723 A CN 200910135723A CN 101527494 A CN101527494 A CN 101527494A
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Abstract
The invention discloses a flat plate type linear motor and belongs to a servomotor. The linear motor comprises a primary armature component which is accessed to a multiphase symmetric current, and a secondary permanent-magnet excitation component which is magnetically coupled with the primary armature component; and a traveling wave magnetic field which is interlinked with a permanent magnetic field of the secondary permanent-magnet excitation component is formed by the primary armature component under the effect of the multiphase symmetric current and a thrust force is produced, and the primary armature component and the secondary permanent-magnet excitation component are in relative linear motion. The flat plate type linear motor has the advantages of good heat dissipation performance, smooth thrust force and appropriate electromagnetic force, and preventing the effective thrust force from being weakened by an oblique groove or an oblique magnet.
Description
Technical field
The present invention relates to a kind of servomotor, relate in particular to a kind of flat plate type linear motor.
Background technology
The main version of linear electric motors has two kinds: the one, and the teeth groove structure of ribbon core, another kind is the hollow winding construction of no iron core.The former is because the teeth groove detent force that exists the iron core fluting to produce, need control by the mode of skewed slot or oblique magnetic, both can't eliminate slot effect fully, can weaken effective push again, and powerful electromagnetic attraction between iron core and the permanent magnet causes that easily the distortion of supporting construction and stress concentrates.Though there is not slot effect in the latter, because adopted the skeleton can not heat conduction, the heat radiation difficulty, so overload capacity is low.
Summary of the invention
Technical problem to be solved by this invention is to be a kind of flat plate type linear motor need be provided, and overcomes the relatively poor defective of existing iron core teeth groove linear electric motors heat radiation.
In order to solve the problems of the technologies described above, the invention provides a kind of flat plate type linear motor, comprising:
Elementary armature component; Insert a heterogeneous symmetrical current;
Secondary permanent magnet excitation parts are with described elementary armature component magnetic coupling;
Under described heterogeneous symmetrical current effect, the travelling-magnetic-field of the permanent-magnetic field interlinkage of described elementary armature component formation one and described secondary permanent magnet excitation parts, produce a thrust, described elementary armature component and described secondary permanent magnet excitation parts form straight line and relatively move.
Preferably, described elementary armature component comprises:
Elementary yoke is permeability magnetic material, the part of described permanent-magnetic field;
Winding is made of air core coil, is positioned at the surface of described elementary yoke;
Link stopper is used to hold described winding, and limits described winding and be subjected to electromagnetic force to do moving of time spent.
Preferably, described winding, elementary yoke and link stopper are packaged as a whole by heat-conducting glue.
Preferably, described air core coil constitutes heterogeneous distributed winding or heterogeneous centralized winding by the mode of serial or parallel connection.
Preferably, described air core coil is prefabricated into the two ends bending, the described heterogeneous distributed winding of formation nested against one another.
Preferably, described air core coil is flat air core coil, constitutes described heterogeneous centralized winding.
Preferably, by adjusting the length of described elementary yoke, suppress force oscillation along described direction of relative movement.
Preferably, described secondary permanent magnet excitation parts are determined the direction of motion and the stroke range that this straight line relatively moves.
Preferably, described secondary permanent magnet excitation parts comprise:
Permanent magnet array is made of some excitation modules, and a described excitation module comprises opposite polarity two bar permanent magnets;
Secondary yoke is used for fixing described permanent magnet array.
Preferably, described permanent magnet array is determined the stroke range that described straight line relatively moves.
Compared with prior art, flat plate type linear motor of the present invention not only has good performance of heat dissipation, and also has level and smooth thrust and moderate electromagnetic attraction, has avoided the weakening to effective push of skewed slot or oblique magnetic simultaneously.
Description of drawings
Fig. 1 is the composition schematic diagram of flat plate type linear motor one embodiment of the present invention.
Fig. 2 be embodiment illustrated in fig. 1 in the structural representation of elementary armature component 20.
Fig. 3 is the structural representation of elementary armature component 20 another kind of execution modes.
Fig. 4 be embodiment illustrated in fig. 1 in the structural representation of secondary permanent magnet excitation parts 30.
Fig. 5 is the thrust profiles schematic diagram of flat plate type linear motor of the present invention along the direction that relatively moves.
Fig. 6 is the contrast schematic diagram of flat plate type linear motor of the present invention and teeth groove motor pull characteristics.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.
Fig. 1 is the composition schematic diagram of flat plate type linear motor one embodiment of the present invention.As shown in Figure 1, present embodiment comprises elementary armature component 20 and secondary permanent magnet excitation parts 30, elementary armature component 20 with secondary permanent magnet excitation parts 30 magnetic couplings after, under heterogeneous symmetrical current effect, the travelling-magnetic-field of the permanent-magnetic field interlinkage of formation one and secondary permanent magnet excitation parts 30 produces a thrust; Under this thrust, this elementary armature component 20 forms straight line with these secondary permanent magnet excitation parts 30 and relatively moves; These secondary permanent magnet excitation parts 30 are determined the direction of motion and the stroke range that this straight line relatively moves.Present embodiment is the elementary armature component 20 of weak point and the moving-coil structure that long secondary permanent magnet excitation parts 30 constitute.
Fig. 2 is the structural representation of above-mentioned elementary armature component 20.As shown in Figure 2, this elementary armature component 20 comprises that winding 21, elementary yoke 22, two first link stoppers 23 and two second link stoppers 24 form.Winding 21 is made of air core coil 25, and the mode by serial or parallel connection constitutes heterogeneous distributed winding, is placed in the surface of elementary yoke 22.Elementary yoke 22 is a permeability magnetic material, is the part of permanent-magnetic field, and the winding housing region that first link stopper 23 and second link stopper 24 form just like the rectangle shown in the figure is subjected to electromagnetic force to do moving of time spent to hold winding 21 and to limit winding 21.In the present embodiment, two first link stoppers 23 are vertical with the direction of aforementioned relative movement, and two second link stoppers 24 are parallel with the direction of aforementioned relative movement.
In the present embodiment, winding 21, elementary yoke 22, first link stopper 23 and second link stopper 24 are fixed together by casting glue, are to be packaged into one by heat-conducting glue in the present embodiment.The winding 21 that the air core coil 25 of varying number is constituted is with the mover module of elementary yoke 22, first link stopper 23 and the different thrusts of second link stopper, 24 formations.Air core coil 25 is prefabricated into the two ends bending, and the distributed winding 21 of formation nested against one another is repeatedly adorned the space with what make full use of winding.
Fig. 3 is the structural representation of above-mentioned elementary armature component 20 another kind of execution modes.As shown in the figure, the winding 27 in the elementary armature component 20 is the heterogeneous centralized winding that adopts the mode of flat air core coil (also being not bending of two ends) by serial or parallel connection to constitute, and is placed in the surface of elementary yoke 22.Coil 26 is closely arranged, and constitutes winding 27 backs and adopts heat-conducting glues and elementary yoke 22, two first blocks 23 and two second link stoppers 24 to be packaged into elementary armature component 20.
Among Fig. 2 and Fig. 3, elementary yoke 22 also is the distance L between two first link stoppers 23 along the length of the direction that relatively moves, and needs to adjust when using, so that cancel out each other to the thrust that elementary armature component 20 produces in elementary armature component 20 both ends.
Fig. 4 is the composition schematic diagram of above-mentioned secondary permanent magnet excitation parts 30.As shown in Figure 4, these secondary permanent magnet excitation parts 30 comprise secondary yoke 31 and some bar permanent magnets 32 are combined in a permanent magnet array that constitutes, the mode sequence arrangement that the permanent magnet 32 of these some bar shapeds replaces mutually with polarity, combine this permanent magnet array of formation, as shown in the figure.The permanent magnet 32 of some bar shapeds that polarity replaces mutually is bonded on the secondary yoke 31, forms an integral body with secondary yoke 32, is secondary permanent magnet excitation parts 30.Two blocks of opposite polarity permanent magnets constitute an excitation module, and the permanent magnet array that some excitation modules combine by fixing of secondary yoke 31, forms the required stroke of aforementioned relative movement.
Fig. 5 is a flat plate type linear motor of the present invention, and by adjusting the thrust profiles schematic diagram of elementary yoke 22 after the length L of the direction that relatively moves as shown in Figures 2 and 3, abscissa is a stroke for the distance that moves, and ordinate is the relative value of thrust.As seen from the figure, force oscillation is suppressed fully, has the thrust performance consistent with hollow winding linear motor.
Fig. 6 is the contrast schematic diagram of flat plate type linear motor of the present invention and teeth groove motor pull characteristics, and abscissa is a stroke for the distance that moves, and ordinate is the relative value of suction.Being seen that by figure the suction of flat plate type linear motor of the present invention significantly reduces, only is 8.5% of teeth groove motor.
Flat plate type linear motor among the present invention, elementary armature component adopts no teeth groove smooth armature, and cancellation teeth groove structure is avoided because the slot effect of tooth, groove initiation.Eliminate the teeth groove detent force by the length of adjusting elementary yoke.Winding and elementary yoke, plate washer etc. are with Heat Conduction Material encapsulation, and the heating of winding is delivered to the good electric machine casing of heat conductivility.Secondary permanent magnet excitation parts adopt straight magnetic permanent magnet array, are bonded on the secondary yoke.The present invention has had both the advantage of iron core teeth groove linear electric motors and hollow winding linear motor, and existing level and smooth thrust and moderate electromagnetic attraction have good performance of heat dissipation again, has avoided the weakening to effective push of skewed slot or oblique magnetic simultaneously.
Though the disclosed execution mode of the present invention as above, the execution mode that described content just adopts for the ease of understanding the present invention is not in order to limit the present invention.Technical staff in any the technical field of the invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can do any modification and variation what implement in form and on the details; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.
Claims (10)
1, a kind of flat plate type linear motor is characterized in that, comprising:
Elementary armature component; Insert a heterogeneous symmetrical current;
Secondary permanent magnet excitation parts are with described elementary armature component magnetic coupling;
Under described heterogeneous symmetrical current effect, the travelling-magnetic-field of the permanent-magnetic field interlinkage of described elementary armature component formation one and described secondary permanent magnet excitation parts, produce a thrust, described elementary armature component and described secondary permanent magnet excitation parts form straight line and relatively move.
2, motor as claimed in claim 1 is characterized in that, described elementary armature component comprises:
Elementary yoke is permeability magnetic material, the part of described permanent-magnetic field;
Winding is made of air core coil, is positioned at the surface of described elementary yoke;
Link stopper is used to hold described winding, and limits described winding and be subjected to electromagnetic force to do moving of time spent.
3, motor as claimed in claim 2 is characterized in that, described winding, elementary yoke and link stopper are packaged as a whole by heat-conducting glue.
4, motor as claimed in claim 2 is characterized in that, described air core coil constitutes heterogeneous distributed winding or heterogeneous centralized winding by the mode of serial or parallel connection.
5, motor as claimed in claim 4 is characterized in that, described air core coil is prefabricated into the two ends bending, the described heterogeneous distributed winding of formation nested against one another.
6, motor as claimed in claim 4 is characterized in that, described air core coil is flat air core coil, constitutes described heterogeneous centralized winding.
7, motor as claimed in claim 2 is characterized in that, by adjusting the length of described elementary yoke along described direction of relative movement, suppresses force oscillation.
8, motor as claimed in claim 1 is characterized in that, described secondary permanent magnet excitation parts are determined the direction of motion and the stroke range that this straight line relatively moves.
9, motor as claimed in claim 8 is characterized in that, described secondary permanent magnet excitation parts comprise:
Permanent magnet array is made of some excitation modules, and a described excitation module comprises opposite polarity two bar permanent magnets;
Secondary yoke is used for fixing described permanent magnet array.
10, motor as claimed in claim 9 is characterized in that, described permanent magnet array is determined the stroke range that described straight line relatively moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910135723A CN101527494A (en) | 2009-04-27 | 2009-04-27 | Flat plate type linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910135723A CN101527494A (en) | 2009-04-27 | 2009-04-27 | Flat plate type linear motor |
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| Publication Number | Publication Date |
|---|---|
| CN101527494A true CN101527494A (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910135723A Pending CN101527494A (en) | 2009-04-27 | 2009-04-27 | Flat plate type linear motor |
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| CN (1) | CN101527494A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834511A (en) * | 2010-04-30 | 2010-09-15 | 浙江大学 | Planar transverse magnetic flux switch flux linkage permanent magnet linear motor |
| CN104662776A (en) * | 2012-09-19 | 2015-05-27 | 瑞美技术有限责任公司 | Motor cooling system with potted end turns |
| JP2017099236A (en) * | 2015-11-27 | 2017-06-01 | 株式会社東芝 | Permanent magnet dynamo-electric machine and stator of permanent magnet dynamo-electric machine |
| CN108233645A (en) * | 2017-12-27 | 2018-06-29 | 深圳市策维科技有限公司 | A kind of technique of linear motor stator electric splicing |
| CN109462320A (en) * | 2018-11-02 | 2019-03-12 | 安徽大学 | Double-layer reverse inclined winding coreless permanent magnet synchronous linear motor |
| WO2022047865A1 (en) * | 2020-09-04 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear driving motor |
| WO2022047864A1 (en) * | 2020-09-04 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear motor |
| CN117879210A (en) * | 2024-03-11 | 2024-04-12 | 比亚迪股份有限公司 | Secondary iron core, linear motor, electromagnetic suspension and vehicle |
| WO2024104389A1 (en) * | 2022-11-15 | 2024-05-23 | 中山联合光电研究院有限公司 | Voice coil motor, zoom lens, and photographing device |
-
2009
- 2009-04-27 CN CN200910135723A patent/CN101527494A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834511A (en) * | 2010-04-30 | 2010-09-15 | 浙江大学 | Planar transverse magnetic flux switch flux linkage permanent magnet linear motor |
| CN101834511B (en) * | 2010-04-30 | 2011-11-23 | 浙江大学 | Planar transverse magnetic flux switch flux linkage permanent magnet linear motor |
| CN104662776A (en) * | 2012-09-19 | 2015-05-27 | 瑞美技术有限责任公司 | Motor cooling system with potted end turns |
| JP2017099236A (en) * | 2015-11-27 | 2017-06-01 | 株式会社東芝 | Permanent magnet dynamo-electric machine and stator of permanent magnet dynamo-electric machine |
| CN108233645A (en) * | 2017-12-27 | 2018-06-29 | 深圳市策维科技有限公司 | A kind of technique of linear motor stator electric splicing |
| CN108233645B (en) * | 2017-12-27 | 2020-09-15 | 深圳市忠维新实业有限公司 | Linear motor stator splicing process |
| CN109462320A (en) * | 2018-11-02 | 2019-03-12 | 安徽大学 | Double-layer reverse inclined winding coreless permanent magnet synchronous linear motor |
| WO2022047865A1 (en) * | 2020-09-04 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear driving motor |
| WO2022047864A1 (en) * | 2020-09-04 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear motor |
| WO2024104389A1 (en) * | 2022-11-15 | 2024-05-23 | 中山联合光电研究院有限公司 | Voice coil motor, zoom lens, and photographing device |
| CN117879210A (en) * | 2024-03-11 | 2024-04-12 | 比亚迪股份有限公司 | Secondary iron core, linear motor, electromagnetic suspension and vehicle |
| CN117879210B (en) * | 2024-03-11 | 2024-06-18 | 比亚迪股份有限公司 | Secondary iron core, linear motor, electromagnetic suspension and vehicle |
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Open date: 20090909 |