CN100566097C - Cylindrical three-phase permanent magnetic linear synchronous motor - Google Patents
Cylindrical three-phase permanent magnetic linear synchronous motor Download PDFInfo
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- CN100566097C CN100566097C CNB2006101511334A CN200610151133A CN100566097C CN 100566097 C CN100566097 C CN 100566097C CN B2006101511334 A CNB2006101511334 A CN B2006101511334A CN 200610151133 A CN200610151133 A CN 200610151133A CN 100566097 C CN100566097 C CN 100566097C
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Abstract
Cylindrical three-phase permanent magnetic linear synchronous motor, it relates to machine field, in the detent force that the present invention has caused owing to slot effect in having reduced existing electric machine structure, has also taken into account electric machine iron core tooth pitch τ
tWith permanent magnet pole apart from τ
pDesign, improved the volume performance ratio of motor.The present invention includes casing, armature component, permanent magnet excitation parts and axle, armature component is made up of armature core and armature winding, armature winding is embedded in the teeth groove of armature core, and armature core is close on the inner surface of casing, and the permanent magnet excitation parts are movable structures, it comprises permanent magnet, the permanent magnet fixed cover is on axle, and axle is made by permeability magnetic material, and the groove number of armature core is S=3m, the number of magnetic poles of permanent magnet excitation parts is P=2k, the tooth pitch τ of armature core
tPole span τ with permanent magnet
pBetween satisfy and to concern 3n τ
t=(3n ± 1) τ
p, wherein m, n, k are natural number.The present invention both can be used as linear motor and had used, and also can be used as linear electric generator and used.
Description
Technical field
The present invention relates to machine field, be specifically related to cylindrical three-phase permanent magnetic linear synchronous motor.
Background technology
Shown in Figure 7 in the structure of existing cylindrical three-phase permanent magnetic linear synchronous motor such as the Figure of description, the tooth pitch τ of the armature core of motor
tPole span τ with permanent magnet
pBetween must satisfy and concern 3 τ
t=τ
p, every extremely every phase groove number of motor is an integer, this structure is called integer groove structure.The permanent magnetic linear synchronous motor of this structure is bigger by the detent force that slot effect causes, and owing to will guarantee armature core tooth pitch τ
tPole span τ with permanent magnet
pBetween 3 times relation, so guaranteeing the armature core tooth pitch τ of motor
tIn the time of proper, can cause the pole span τ of motor
pBigger, and then the conductive magnetic yoke portion of permanent magnet is thickened, thus can increase the volume and weight of motor, and as the pole span τ that reduces motor
pThough, can reduce the volume and weight of motor, but can cause armature core tooth pitch τ
tReduce, reduce the intensity of armature tooth, the core tooth of motor is apart from τ
tPole span τ with permanent magnet
pDesign be not easy to take into account, make the motor properties volume ratio low.
Summary of the invention
The detent force that causes for the slot effect that solves existing cylindrical three-phase permanent magnetic linear synchronous motor is bigger, and since core tooth apart from τ
tPole span τ with permanent magnet
pDesign is not easy to take into account and causes the low problem of motor properties volume ratio, the present invention has designed a kind of cylindrical three-phase permanent magnetic linear synchronous motor of fractional-slot structure, it comprises casing, armature component, permanent magnet excitation parts and axle, described armature component is made up of armature core and armature winding, described armature winding is the coil of annular, armature winding is embedded in the teeth groove of armature core, armature core is close on the inner surface of casing, the permanent magnet excitation parts are movable structures, permanent magnet excitation parts fixed cover is on axle, described permanent magnet excitation parts comprise permanent magnet, axle is made by permeability magnetic material, and described permanent magnet fixed cover is on axle, and the groove number of armature core is S=3m, the number of magnetic poles of permanent magnet excitation parts is P=2k, the tooth pitch τ of described armature core
tPole span τ with permanent magnet
pBetween satisfy and to concern 3n τ
t=(3n ± 1) τ
p, wherein m, n, k are natural number.
Cylindrical three-phase permanent magnetic linear synchronous motor of the present invention 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, improved motor properties volume ratio and performance weight ratio.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is the structural representation of embodiment two described cylindrical three-phase permanent magnetic linear synchronous motors; Fig. 3 is the structural representation of embodiment three described cylindrical three-phase permanent magnetic linear synchronous motors; Fig. 4, Fig. 5 are the structural representations of embodiment four described cylindrical three-phase permanent magnetic linear synchronous motors; The structural representation of Fig. 6 embodiment five described cylindrical three-phase permanent magnetic linear synchronous motors; Fig. 7 is the structural representation of existing cylindrical shape three-phase synchronous magnetoelectric machine.
Embodiment
Embodiment one: referring to Fig. 1, the cylindrical three-phase permanent magnetic linear synchronous motor of present embodiment, it is by casing 1, armature component, permanent magnet excitation parts and axle 5 are formed, described armature component is made up of armature core 2 and armature winding 3, described armature winding 3 is coils of annular, armature winding 3 is embedded in the teeth groove of armature core 2, armature core 2 is close on the inner surface of casing 1, the permanent magnet excitation parts are movable structures, permanent magnet excitation parts fixed cover is on axle 5, described permanent magnet excitation parts comprise permanent magnet 4, axle 5 is made by permeability magnetic material, and described permanent magnet 4 fixed covers are on axle 5, and the groove number of armature core 2 is S=3m, the number of magnetic poles of permanent magnet excitation parts is P=2k, the tooth pitch τ of described armature core 2
tPole span τ with permanent magnet 4
pBetween satisfy and to concern 3n τ
t=(3n ± 1) τ
p, wherein m, n, k are natural number.
Adopt the motor of this structure, can save the permanent magnet yoke part in the existing motor on the one hand, reduced the diameter of motor, and then dwindled the volume of motor, improved the motor properties volume ratio; Make the tooth pitch τ of armature core 2 on the other hand
tPole span τ with permanent magnet 4
pDiffer very little, both can reduce the detent force that causes by slot effect, can take into account the tooth pitch τ of motor again
tWith pole span τ
pDesign.
Embodiment two: referring to Fig. 2, the difference of the cylindrical three-phase permanent magnetic linear synchronous motor of present embodiment and embodiment one is, described permanent magnet excitation parts also comprise permanent magnet yoke 6, permanent magnet yoke 6 is fixed between permanent magnet 4 and the axle 5, and axle can be to be made by non-magnet material.
Embodiment three: referring to Fig. 3, the difference of the cylindrical three-phase permanent magnetic linear synchronous motor of present embodiment and embodiment one is, described armature component is movable structure, fixed cover is on axle 5, the permanent magnet excitation parts are cylindrical shape, and the permanent magnet excitation parts are close on the inner surface of casing 1.
Embodiment four: referring to Fig. 4, Fig. 5, the cylindrical three-phase permanent magnetic linear synchronous motor of present embodiment and embodiment one or threes' difference is, the permanent magnet 4 and the permanent magnet yoke 6 of described permanent magnet excitation parts are to be spaced, described permanent magnet 4 axial chargings, the magnetizing direction of adjacent permanent magnet 4 is opposite.
Embodiment five: referring to Fig. 6, the cylindrical three-phase permanent magnetic linear synchronous motor of present embodiment, the number of poles P that the groove of described armature core 2 is counted S and permanent magnet 4 is a mutual prime rwmber, S core slots is divided into 3 sections vertically, then every section core slots number is m, an adjacent m groove belongs to same phase, constitutes a phase winding; Coil in the adjacent slot of homophase around on the contrary, m coil is cascaded and constitutes a phase armature winding.
It is nine grooves that the motor of present embodiment is selected armature core 2 for use, and permanent magnet 4 is elected eight utmost points as, then: S=9, P=8, be mutual prime rwmber, m=3 selects n=3, then by formula 3n τ
t=(3n ± 1) τ
pCan get: 9 τ
t=10 τ
pOr 9 τ
t=8 τ
p, select 9 τ in the present embodiment
t=8 τ
pNine core slots are divided into three sections, every section has three grooves, described three adjacent grooves belong to same phase, be embedded in three adjacent grooves first group of coil 31, second group of coil 32 belongs to A mutually with the 3rd group of coil 33, first group of coil 31 around to being that forward twines, second group of coil 32 around to being reverse winding, the 3rd group of coil 33 around to being that forward twines, first group of coil 31, second group of coil 32 and the 3rd group of coil 33 are cascaded and constitute A phase winding in the three-phase symmetric winding, and the winding of all the other two-phases constitutes identical therewith.
Embodiment six: referring to Fig. 2, the cylindrical three-phase permanent magnetic linear synchronous motor of present embodiment, there is greatest common divisor j in the number of poles P that the groove of described armature core 2 is counted S and permanent magnet 4, S core slots is divided into 3j part, an adjacent m/j groove belongs to a phase, toroidal around on the contrary in the adjacent core slots of same phase, an adjacent m/j coil is cascaded and constitutes a winding element, then the j that belongs to same phase winding element series, parallel or series-parallel connection is constituted a phase in the three-phase symmetric winding together.
It is 12 grooves that the motor of present embodiment is selected armature core 2 for use, and permanent magnet 4 is elected ten utmost points as, and then: S=12, P=10, m=4, the greatest common divisor of P and S is j=2, selects n=2, then by formula 3n τ
t=(3n ± 1) τ
pCan get: 6 τ
t=7 τ
pOr 6 τ
t=5 τ
p, select 6 τ in the present embodiment
t=5 τ
p12 grooves of armature core 2 are divided into 3j part, promptly six parts.The tenth group of adjacent coil 34 all belongs to A mutually with the 11 group of coil 35, the tenth group of coil 34 is that forward twines, the 11 group of coil 35 is reverse windings, 35 series connection constitute A first winding element mutually to the tenth group of coil 34 with the 11 group of coil, the 12 group of coil 36 and the 13 group of coil 37 of being both the A phase are embedded in the adjacent groove, the 12 group of coil 36 is that forward twines, the 13 group of coil 37 is reverse windings, the 12 group of coil 36 constitutes A second winding element mutually with the 13 group of coil 37, two winding elements of A phase will be belonged to, be that first winding element and second winding element serial or parallel connection constitute the A phase winding in the three-phase symmetric winding together, the formation of all the other two phase windings is mutually identical with A.
Claims (8)
1, cylindrical three-phase permanent magnetic linear synchronous motor, it comprises casing (1), armature component, permanent magnet excitation parts and axle (5), described armature component is made up of armature core (2) and armature winding (3), described armature winding (3) is the coil of annular, armature winding (3) is embedded in the groove of armature core (2), armature core (2) is close on the inner surface of casing (1), the permanent magnet excitation parts are movable structures, permanent magnet excitation parts fixed cover is on axle (5), it is characterized in that described permanent magnet excitation parts comprise permanent magnet (4), axle (5) is made by permeability magnetic material, described permanent magnet (4) fixed cover is on axle (5), the groove of armature core (2) is counted S and is satisfied S=3m, and the number of magnetic poles P of permanent magnet excitation parts satisfies P=2k, the tooth pitch τ of described armature core (2)
tPole span τ with permanent magnet (4)
pBetween satisfy and to concern 3n τ
t=(3n ± 1) τ
p, wherein m, n, k are natural number.
2, cylindrical three-phase permanent magnetic linear synchronous motor according to claim 1 is characterized in that described permanent magnet excitation parts also comprise permanent magnet yoke (6), and permanent magnet yoke (6) is fixed between permanent magnet (4) and the axle (5).
3, cylindrical three-phase permanent magnetic linear synchronous motor according to claim 1, the permanent magnet (4) that it is characterized in that described permanent magnet excitation parts is to be spaced with permanent magnet yoke (6), described permanent magnet (4) axial charging, the magnetizing direction of adjacent permanent magnet (4) is opposite.
4, cylindrical three-phase permanent magnetic linear synchronous motor according to claim 1 and 2, the number of poles P that the groove that it is characterized in that described armature core (2) is counted S and permanent magnet (4) is a mutual prime rwmber, S core slots is divided into 3 sections vertically, then every section core slots number is m, coil in the adjacent m groove belongs to same phase, constitutes a phase winding; Coil in the adjacent slot of homophase around on the contrary, m coil is cascaded and constitutes a phase armature winding (3).
5, cylindrical three-phase permanent magnetic linear synchronous motor according to claim 1 and 2, there is greatest common divisor j in the number of poles P that the groove that it is characterized in that described armature core (2) is counted S and permanent magnet (4), S core slots is divided into 3j part, an adjacent m/j groove belongs to a phase, toroidal around on the contrary in the adjacent core slots of same phase, an adjacent m/j coil is cascaded and constitutes a winding element, then the j that belongs to same phase winding element series, parallel or series-parallel connection is constituted a phase in the three-phase symmetric winding together.
6, cylindrical three-phase permanent magnetic linear synchronous motor, it comprises casing (1), armature component, permanent magnet excitation parts and axle (5), described armature component is made up of armature core (2) and armature winding (3), described armature winding (3) is the coil of annular, armature winding (3) is embedded in the groove of armature core (2), armature component is movable structure, the armature component fixed cover is on axle (5), it is characterized in that described permanent magnet excitation parts comprise permanent magnet (4) and permanent magnet yoke (6), the permanent magnet excitation parts are cylindrical shape, permanent magnet yoke (6) is close on the inner surface of casing (1), permanent magnet (4) is fixed on the inner surface of permanent magnet yoke (6), axle (5) is made by permeability magnetic material, the groove of armature core (2) is counted S and is satisfied S=3m, the number of magnetic poles P of permanent magnet excitation parts satisfies P=2k, the tooth pitch τ of described armature core (2)
tPole span τ with permanent magnet (4)
pBetween satisfy and to concern 3n τ
t=(3n ± 1) τ
p, wherein m, n, k are natural number.
7, cylindrical three-phase permanent magnetic linear synchronous motor according to claim 6, the number of poles P that the groove that it is characterized in that described armature core (2) is counted S and permanent magnet (4) is a mutual prime rwmber, S core slots is divided into 3 sections vertically, then every section core slots number is m, coil in the adjacent m groove belongs to same phase, constitutes a phase winding; Coil in the adjacent slot of homophase around on the contrary, m coil is cascaded and constitutes a phase armature winding (3).
8, cylindrical three-phase permanent magnetic linear synchronous motor according to claim 6, there is greatest common divisor j in the number of poles P that the groove that it is characterized in that described armature core (2) is counted S and permanent magnet (4), S core slots is divided into 3j part, an adjacent m/j groove belongs to a phase, toroidal around on the contrary in the adjacent core slots of same phase, an adjacent m/j coil is cascaded and constitutes a winding element, then the j that belongs to same phase winding element series, parallel or series-parallel connection is constituted a phase in the three-phase symmetric winding together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101511334A CN100566097C (en) | 2006-12-13 | 2006-12-13 | Cylindrical three-phase permanent magnetic linear synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101511334A CN100566097C (en) | 2006-12-13 | 2006-12-13 | Cylindrical three-phase permanent magnetic linear synchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1976187A CN1976187A (en) | 2007-06-06 |
| CN100566097C true CN100566097C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101511334A Expired - Fee Related CN100566097C (en) | 2006-12-13 | 2006-12-13 | Cylindrical three-phase permanent magnetic linear synchronous motor |
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| CN101783574B (en) * | 2010-04-12 | 2012-04-25 | 哈尔滨工业大学 | Annular winding segmented permanent magnet synchronous linear motor |
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| CN102158041A (en) * | 2011-02-18 | 2011-08-17 | 中国科学院电工研究所 | Primary winding of a cylindrical asynchronous linear motor |
| CN102185444B (en) * | 2011-05-18 | 2012-12-05 | 哈尔滨工业大学 | High dynamic linear permanent magnet synchronous motor with double-armature structure |
| CN103683802A (en) * | 2013-12-23 | 2014-03-26 | 哈尔滨工业大学 | High-efficiency and low-thrust pulsation cylindrical linear movement mechanism |
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| CN107584792B (en) * | 2017-10-26 | 2019-09-10 | 西安电子科技大学 | A kind of linear drives high-speed blanking press |
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2006
- 2006-12-13 CN CNB2006101511334A patent/CN100566097C/en not_active Expired - Fee Related
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|---|---|
| CN1976187A (en) | 2007-06-06 |
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