CN102185444A - High dynamic linear permanent magnet synchronous motor with double-armature structure - Google Patents
High dynamic linear permanent magnet synchronous motor with double-armature structure Download PDFInfo
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- CN102185444A CN102185444A CN 201110128558 CN201110128558A CN102185444A CN 102185444 A CN102185444 A CN 102185444A CN 201110128558 CN201110128558 CN 201110128558 CN 201110128558 A CN201110128558 A CN 201110128558A CN 102185444 A CN102185444 A CN 102185444A
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Abstract
双电枢结构高动态直线永磁同步电机。涉及电机领域，它既能够满足推力密度，又能够提高动态响应。铁心气隙侧表面上沿运动方向设置有一列相互平行的齿，齿与齿之间为槽，绕组线圈为矩形线圈，其缠固在齿上，有效边嵌放在槽中，节距为1；次级两侧相对位置上线圈为同一相，并产生磁力线方向相同，电枢反应磁通垂直穿过次级；截面为平行四边形的平板型永磁体，其短边与运动方向相平行，长短边之间的夹角85°＜θ≤90°，截面与基板气隙侧表面上相平行，基板上嵌放有N列沿运动方向永磁体，每列中永磁体均依次N、S交替平行嵌放，垂直于运动方向两相邻永磁体充磁方向相同；前后小于中间永磁体宽度，铁心长度＜次级有效长度＜2倍铁心长度。应用于短行程。
High dynamic linear permanent magnet synchronous motor with double armature structure. Involved in the field of motors, it can not only meet the thrust density, but also improve the dynamic response. There is a row of teeth parallel to each other along the movement direction on the side surface of the air gap of the iron core. There are slots between the teeth. The winding coil is a rectangular coil, which is wound on the teeth, and the effective side is embedded in the slot. The pitch is 1 ; The coils at the opposite positions on both sides of the secondary are in the same phase, and the direction of the magnetic force lines is the same, and the armature reaction flux passes through the secondary; the cross-section is a parallelogram-shaped flat permanent magnet, and its short side is parallel to the direction of motion. The angle between the sides is 85°<θ≤90°, the cross-section is parallel to the air gap side surface of the substrate, N rows of permanent magnets are embedded on the substrate along the direction of motion, and the permanent magnets in each row are N and S alternately parallel Embedded, the magnetization direction of two adjacent permanent magnets perpendicular to the direction of motion is the same; the width of the front and rear is smaller than that of the middle permanent magnet, and the length of the iron core<secondary effective length<2 times the length of the iron core. For short strokes.
Description
Technical field
The present invention relates to machine field, body relates to double armature structure linear permanent magnet synchronous motor.
Background technology
Figure 8 shows that publication number is CN101009454A, open day is a kind of dual-edge plane three-phase linear permanent magnetic synchronization motor of Chinese patent of application on August 1st, 2007, its patent No.: ZL200710071704.8.This motor is the structure two-sided flat plated three-phase linear permanent-magnet synchronous motor of a kind of fractional-slot, and this electric machine structure both can reduce the detent force that caused by slot effect, can take into account the tooth pitch τ of motor again
tWith pole span τ
pDesign; The manufacturing process of motor is simple in addition, and the end of winding is short, insulation easily, efficiency of motor height, cost are low, have therefore improved motor properties greatly.These linear electric motors both can move elementaryly to stroke without limits, also can move secondaryly, but no matter were elementary, and were still moving secondary, but because the quality of mover is big, therefore, the dynamic response of motor is poor.
Summary of the invention
The present invention can improve the dynamic response of motor again in order to satisfy the pushing force density of motor, and has proposed the high dynamically linear permanent magnet synchronous motor of a kind of double armature structure.
The high dynamically linear permanent magnet synchronous motor of double armature structure is elementary and secondary composition by two, secondary be clipped in two be parallel to each other elementary between, secondary and two all have air gap between elementary; Described two primary structures are identical, and each is elementary by elementary winding and elementary unshakable in one's determination the composition; Secondaryly form by a plurality of permanent magnets and a secondary substrate; The surperficial upper edge motor movement direction of elementary air gap side unshakable in one's determination is provided with the tooth that row are parallel to each other, it between tooth and the tooth groove, the coil of elementary winding is a square coil, square coil is fastened on the tooth of elementary iron core, two effective edges of square coil embed respectively in the groove of elementary iron core, and the pitch of square coil is 1; The square coil that is positioned on the relative position of secondary both sides is same phase, and the magnetic line of force direction that described two square coils produce is identical, and the armature reaction magnetic flux vertically passes secondary; Described permanent magnet is that the cross section is the plate permanent magnet of parallelogram, two minor faces of described parallelogram parallel with the motor movement direction, angle theta between its long limit and the minor face satisfies condition: 85 °＜θ≤90 °, the cross section of permanent magnet parallels with the surface of secondary substrate air gap side, secondary substrate upper edge motor movement direction has embedded M row permanent magnet, wherein M is 1 or even number, a plurality of permanent magnets in every row all successively N, S replace parallel embedding, identical perpendicular to every two adjacent permanent magnets magnetizing direction of motor movement direction; The permanent magnet width of the permanent magnet of secondary front end and rear end is less than the permanent magnet width of secondary centre, and secondary effective length is greater than elementary core length, and less than 2 times of elementary core length.
The present invention is directed to the short stroke applications field, the high dynamically linear permanent magnet synchronous motor of a kind of double armature structure is proposed, by adopting special primary structure and secondary structure, both improved the pushing force density of motor, reduce mover (secondary) quality again, thereby improved the dynamic response of linear electric motors greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention, Fig. 2 is elementary 1 structural representation, Fig. 3 is elementary unshakable in one's determination 12 structural representation, Fig. 4 to Fig. 6 is secondary 2 structural representation, Fig. 7 is secondary 2 a structural representation in the embodiment nine, and Fig. 8 is the structural representation of existing dual-edge plane three-phase linear permanent magnetic synchronization motor.
Embodiment
Embodiment one: in conjunction with Fig. 1 to 7 explanation present embodiment, present embodiment is formed by two elementary 1 and one secondary 2, and secondary 2 are clipped in two is parallel to each other between elementary 1, all has air gap between secondary 2 and two elementary 1; Described two elementary 1 structures are identical, and each elementary 1 is formed by elementary winding 11 and elementary unshakable in one's determination 12; Secondary 2 are made up of a plurality of permanent magnets 21 and a secondary substrate 22; The surperficial upper edge motor movement direction of elementary 12 air gap sides unshakable in one's determination is provided with the tooth that row are parallel to each other, it between tooth and the tooth groove, the coil of elementary winding 11 is a square coil, square coil is fastened on elementary unshakable in one's determination 12 tooth, two effective edges of square coil embed respectively in elementary unshakable in one's determination 12 groove, and the pitch of square coil is 1; The square coil that is positioned on the secondary 2 both sides relative positions is same phase, and the magnetic line of force direction that described two square coils produce is identical, and the armature reaction magnetic flux vertically passes secondary 2; Described permanent magnet 21 is the plate permanent magnet of parallelogram for the cross section, two minor faces of described parallelogram parallel with the motor movement direction, angle theta between its long limit and the minor face satisfies condition: 85 °＜θ≤90 °, the cross section of permanent magnet 21 parallels with the surface of secondary substrate 22 air gap sides, secondary substrate 22 upper edge motor movement directions have embedded M row permanent magnet, wherein M is 1 or even number, a plurality of permanent magnets 21 in every row all successively N, S replace parallel embedding, identical perpendicular to every two adjacent permanent magnets 21 magnetizing directions of motor movement direction; Permanent magnet 21 width of the permanent magnet 21 of secondary 2 front ends and rear end are less than secondary permanent magnet 21 width in the middle of 2, and secondary 2 effective lengths are greater than elementary 12 length unshakable in one's determination, and less than 2 times of elementary 12 length unshakable in one's determination.
Embodiment two: present embodiment is described in conjunction with Fig. 4 and Fig. 5, present embodiment and embodiment one difference are that along the columns M of the permanent magnet 21 of motor movement direction be at 1 o'clock, it is through hole that secondary substrate 22 broad wayss have identical with permanent magnet 21 shapes, and permanent magnet 21 embeds in through hole.Other composition is identical with embodiment one with connected mode.Acute angle angle theta between long limit of the plate permanent magnet of parallelogram and the minor face is 0 °～3 °, as shown in Figure 5.
Embodiment three: present embodiment is described in conjunction with Fig. 6, present embodiment and embodiment one difference are when the columns M of the permanent magnet 21 of motor movement direction is even number, even column permanent magnet 21 is symmetrical arranged with respect to the center line of secondary substrate 22 along the motor movement direction, it is through hole that secondary substrate 22 broad wayss have identical with permanent magnet 21 shapes, permanent magnet 21 embeds in through hole, or to have identical with permanent magnet 21 shapes on the surface of secondary substrate 22 air gap sides be groove, and permanent magnet 21 embeds in groove.Other composition is identical with embodiment one with connected mode.Perpendicular to the adjacent long edges angulation of every two adjacent permanent magnets 21 of motor movement direction between 174 °～180 °.
Embodiment four: present embodiment and embodiment two or three differences are that the facewidth of the facewidth of elementary 12 liang of end teeth unshakable in one's determination and center tooth is different, the tooth depth of elementary 12 liang of end teeth unshakable in one's determination is less than the tooth depth of center tooth, and elementary 12 length L p unshakable in one's determination satisfy following relation: Lp=i τ
p+ k τ
p, wherein, i is a natural number, k=0.3～0.5, wherein τ
pBe pole span.Other composition is identical with embodiment two or three with connected mode.
Embodiment five: present embodiment and embodiment four differences are that two elementary positions of unshakable in one's determination 12 satisfy condition along the direction of motion length δ that staggers: 0≤δ≤(1/6) τ
pOther composition is identical with embodiment four with connected mode.
Embodiment six: present embodiment and embodiment five differences are that the number of phases of described motor is a three-phase, elementary unshakable in one's determination 12 tooth pitch τ of motor
tWith secondary 2 pole span τ
pBetween satisfy and to concern 3n τ
t=(3n ± 1) τ
p, wherein n is a natural number.Other composition is identical with embodiment five with connected mode.
Embodiment seven: present embodiment and embodiment one, two, three, five or six differences are that secondary substrate 22 adopts nonmagnetic conducting metal or nonmetallic materials.There is layer of metal coating on the surface of permanent magnet 21.Other composition is identical with embodiment one, two, three, five or six with connected mode.
Embodiment eight: permanent magnet 21 width that the difference of present embodiment and embodiment seven is the permanent magnet 21 of secondary 2 front ends and rear end are less than 2/3 of permanent magnet 21 width in the middle of secondary 2, and other composition is identical with embodiment seven with connected mode.
Content of the present invention is not limited only to the content of the respective embodiments described above, and the combination of one of them or several embodiments equally also can realize the purpose of inventing.
Claims (10)
1. the high dynamically linear permanent magnet synchronous motor of double armature structure, it is made up of two elementary (1) and one secondary (2), and secondary (2) are clipped in two and are parallel to each other between elementary (1), all have air gap between secondary (2) and two elementary (1); Described two elementary (1) structures are identical, and each elementary (1) is formed by elementary winding (11) and elementary iron core (12); Secondary (2) are made up of a plurality of permanent magnets (21) and a secondary substrate (22); The surperficial upper edge motor movement direction that it is characterized in that elementary iron core (12) air gap side is provided with the tooth that row are parallel to each other, it between tooth and the tooth groove, the coil of elementary winding (11) is a square coil, square coil is fastened on the tooth of elementary iron core (12), two effective edges of square coil embed respectively in the groove of elementary iron core (12), and the pitch of square coil is 1; The square coil that is positioned on the relative position of secondary (2) both sides is same phase, and the magnetic line of force direction that described two square coils produce is identical, and the armature reaction magnetic flux vertically passes secondary (2); Described permanent magnet (21) is the plate permanent magnet of parallelogram for the cross section, two minor faces of described parallelogram parallel with the motor movement direction, angle theta between its long limit and the minor face satisfies condition: 85 °＜θ≤90 °, the cross section of permanent magnet (21) parallels with the surface of secondary substrate (22) air gap side, secondary substrate (22) upper edge motor movement direction has embedded M row permanent magnet, wherein M is 1 or even number, a plurality of permanent magnets (21) in every row are N successively all, S replaces parallel embedding, and is identical perpendicular to every two adjacent permanent magnets (21) magnetizing direction of motor movement direction; Permanent magnet (21) width of permanent magnet (21) of secondary (2) front end and rear end is less than permanent magnet (21) width in the middle of secondary (2), and secondary (2) effective length is greater than elementary iron core (12) length, and less than 2 times of elementary iron core (12) length.
2. the high dynamically linear permanent magnet synchronous motor of double armature structure according to claim 1, it is characterized in that along the columns M of the permanent magnet (21) of motor movement direction be at 1 o'clock, it is through hole that secondary substrate (22) broad ways has identical with permanent magnet (21) shape, and permanent magnet (21) embeds in through hole.
3. the high dynamically linear permanent magnet synchronous motor of double armature structure according to claim 1, it is characterized in that when the columns M of the permanent magnet (21) of motor movement direction is even number, even column permanent magnet (21) is symmetrical arranged with respect to the center line of secondary substrate (22) along the motor movement direction, it is through hole that secondary substrate (22) broad ways has identical with permanent magnet (21) shape, and permanent magnet (21) embeds in through hole.
4. the high dynamically linear permanent magnet synchronous motor of double armature structure according to claim 1, it is characterized in that when the columns M of the permanent magnet (21) of motor movement direction is even number, even column permanent magnet (21) is symmetrical arranged with respect to the center line of secondary substrate (22) along the motor movement direction, having identical with permanent magnet (21) shape on the surface of secondary substrate (22) air gap side is groove, and permanent magnet (21) embeds in groove.
5. according to claim 2, the high dynamically linear permanent magnet synchronous motor of 3 or 4 described double armature structures, the facewidth that it is characterized in that elementary iron core (12) two end teeth is different with the facewidth of center tooth, the tooth depth of elementary iron core (12) two end teeth is less than the tooth depth of center tooth, and elementary iron core (12) length L p satisfies following relation: Lp=i τ
p+ k τ
p, wherein, i is a natural number, k=0.3～0.5, wherein τ
pBe pole span.
6. the high dynamically linear permanent magnet synchronous motor of double armature structure according to claim 5, the position that it is characterized in that two elementary iron cores (12) satisfies condition along the direction of motion length δ that staggers: 0≤δ≤(1/6) τ
p
7. the high dynamically linear permanent magnet synchronous motor of double armature structure according to claim 6, the number of phases that it is characterized in that described motor is a three-phase, the tooth pitch τ of the elementary iron core (12) of motor
tPole span τ with secondary (2)
pBetween satisfy and to concern 3n τ
t=(3n ± 1) τ
p, wherein n is a natural number.
8. according to claim 1,2,3, the high dynamically linear permanent magnet synchronous motor of 46 or 7 described double armature structures, it is characterized in that secondary substrate (22) adopts nonmagnetic conducting metal or nonmetallic materials.
9. the high dynamically linear permanent magnet synchronous motor of double armature structure according to claim 8 is characterized in that along the surface of motor permanent magnet (21) layer of metal coating being arranged.
10. the high dynamically linear permanent magnet synchronous motor of double armature structure according to claim 9, permanent magnet (21) width that it is characterized in that the permanent magnet (21) of secondary (2) front end and rear end is less than 2/3 of permanent magnet (21) width of secondary (2) centre.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110128558 CN102185444B (en) | 2011-05-18 | 2011-05-18 | High dynamic linear permanent magnet synchronous motor with double-armature structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110128558 CN102185444B (en) | 2011-05-18 | 2011-05-18 | High dynamic linear permanent magnet synchronous motor with double-armature structure |
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| CN102185444A true CN102185444A (en) | 2011-09-14 |
| CN102185444B CN102185444B (en) | 2012-12-05 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915018A (en) * | 2016-05-20 | 2016-08-31 | 南京航空航天大学 | Composite phase belt winding structure for two-armature cylinder-type permanent magnet synchronous linear motor |
| CN106350966A (en) * | 2015-07-15 | 2017-01-25 | 青岛海尔洗衣机有限公司 | Automatic releasing device and washing machine |
| CN106505821A (en) * | 2016-09-19 | 2017-03-15 | 江苏大学 | A primary permanent magnet vernier linear motor and its segmentation method |
| CN108023460A (en) * | 2018-02-02 | 2018-05-11 | 上海莫戈纳机电科技有限公司 | Linear electric machine |
| RU2679002C1 (en) * | 2018-01-17 | 2019-02-05 | Олег Анатольевич Рокачевский | Synchronous motor |
| CN110739826A (en) * | 2018-07-20 | 2020-01-31 | 昆山纳博旺精工科技有限公司 | Dislocation moving magnet type double-side flat plate type permanent magnet linear synchronous motor |
| CN116581955A (en) * | 2023-04-11 | 2023-08-11 | 北京交通大学 | Controllable pole-changing distance self-starting permanent magnet synchronous linear motor |
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| CN1967980A (en) * | 2006-11-24 | 2007-05-23 | 沈阳工业大学 | Intersegmental dephasing asymmetric six-phase permanent-magnet linear servo-actuator |
| CN1976187A (en) * | 2006-12-13 | 2007-06-06 | 哈尔滨工业大学 | Cylindrical three-phase permanent magnetic linear synchronous motor |
| CN200973056Y (en) * | 2006-11-24 | 2007-11-07 | 沈阳工业大学 | Magnetic conductance modulation permanent-magnet liner synchronous dynamo |
| WO2010103575A1 (en) * | 2009-03-13 | 2010-09-16 | 株式会社日立製作所 | Linear motor |
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2011
- 2011-05-18 CN CN 201110128558 patent/CN102185444B/en not_active Expired - Fee Related
Patent Citations (5)
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| US20030098620A1 (en) * | 2000-04-19 | 2003-05-29 | Motomichi Ohto | Permanent magnet synchronous linear motor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350966A (en) * | 2015-07-15 | 2017-01-25 | 青岛海尔洗衣机有限公司 | Automatic releasing device and washing machine |
| CN105915018A (en) * | 2016-05-20 | 2016-08-31 | 南京航空航天大学 | Composite phase belt winding structure for two-armature cylinder-type permanent magnet synchronous linear motor |
| CN105915018B (en) * | 2016-05-20 | 2018-06-01 | 南京航空航天大学 | A kind of compound phase band winding construction of double armature cylindrical permanent linear synchronous motor |
| CN106505821A (en) * | 2016-09-19 | 2017-03-15 | 江苏大学 | A primary permanent magnet vernier linear motor and its segmentation method |
| RU2679002C1 (en) * | 2018-01-17 | 2019-02-05 | Олег Анатольевич Рокачевский | Synchronous motor |
| CN108023460A (en) * | 2018-02-02 | 2018-05-11 | 上海莫戈纳机电科技有限公司 | Linear electric machine |
| CN110739826A (en) * | 2018-07-20 | 2020-01-31 | 昆山纳博旺精工科技有限公司 | Dislocation moving magnet type double-side flat plate type permanent magnet linear synchronous motor |
| CN116581955A (en) * | 2023-04-11 | 2023-08-11 | 北京交通大学 | Controllable pole-changing distance self-starting permanent magnet synchronous linear motor |
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