CN102857065A - Fault-tolerant transverse magnetic-field permanent-magnet linear motor - Google Patents

Fault-tolerant transverse magnetic-field permanent-magnet linear motor Download PDF

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Publication number
CN102857065A
CN102857065A CN2011101827821A CN201110182782A CN102857065A CN 102857065 A CN102857065 A CN 102857065A CN 2011101827821 A CN2011101827821 A CN 2011101827821A CN 201110182782 A CN201110182782 A CN 201110182782A CN 102857065 A CN102857065 A CN 102857065A
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China
Prior art keywords
mover
stator
tolerant
fault
armature winding
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CN2011101827821A
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CN102857065B (en
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徐永向
赵玫
邹继斌
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Harbin Institute of Technology
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LINQUAN MOTOR FACTORY CHINA JIANGNAN SPACE GROUP
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Abstract

The invention discloses a fault-tolerant transverse magnet-field permanent-magnet linear motor which comprises a stator and m rotor components arranged thereon. The stator and the rotor components are of doubly salient structures. Each rotor component is provided with permanent magnets and an armature winding, and the plane of main flux generated from the armature winding is perpendicular to a moving direction of the corresponding rotor component. The fault-tolerant transverse magnetic-field permanent-magnet linear motor has advantages of both a doubly silent permanent-magnet motor and a transverse magnetic-field linear motor, and is high in reliability and thrust density, and has excellent fault-tolerant running capacity since electromagnetic decoupling is achieved between phases. Further, the motor is easy to have a multiphase structure due to the modularized design, is simple in structure and easy to machine, can be used for fields having high requirements for system running reliability, and particularly can be applied to aerospace, military equipment and the like having severe requirements for continuous running.

Description

A kind of fault-tolerant
Technical field
The present invention relates to a kind of fault-tolerant, belong to the techniques of linear motor field.
Background technology
Along with the development of science and technology, in the fields such as Aero-Space, military equipment, more and more higher requirement has been proposed linear motion system, should satisfy simple in structure, control flexibly, reliability is high, satisfies again high pushing force density ratio.Traditional linear electric motors realize that straight-line electric drive scheme is to adopt electric rotating machine to cooperate leading screw to rotatablely move to convert straight-line mode to mostly, therefore this mode of existing linear electric motors is easy in breaking down because the centre exists mechanical link.So existing linear electric motors still can't satisfy in the fields such as Aero-Space, military equipment the instructions for use to linear motion system.
Summary of the invention
The object of the invention is to, a kind of simple in structure, fault-tolerant of being easy to process and have high reliability, high pushing force density, high efficiency and superperformance is provided, overcoming the deficiencies in the prior art, thereby satisfy in the fields such as Aero-Space, military equipment requirement to the linear electric motors of linear motion system.
Technical scheme of the present invention is achieved in that a kind of fault-tolerant of the present invention, comprises stator and m the mover assembly that is located on the stator; A stator and m mover assembly all adopts the double-salient-pole structure; Be equipped with permanent magnet and armature winding on each mover assembly, armature winding is vertical with the direction of motion of mover assembly with the plane, main flux place that permanent magnet produces.
In the aforementioned fault-tolerant, described m is the number of phases, when m 〉=3, adjacent two mover assemblies be stagger pole span τ 2/m doubly distance arrange.
In the aforementioned fault-tolerant, described stator is the strip plate profile structure, and the contact-making surface of stator and mover assembly is provided with the stator salient poles of horizontally set.
In the aforementioned fault-tolerant, described mover assembly comprises the mover iron core, the mover iron core is " door bolt " font, is inlaid with permanent magnet between the crossbeam at " door bolt " font top, is wound with armature winding on " one " font iron core between the two vertical frames of " door bolt " font; The direction that is arranged on the mover salient pole on the mover iron core both sides of armature winding both sides is corresponding with stator salient poles with spacing.
In the aforementioned fault-tolerant, described mover assembly is modular assembly, and namely each armature winding is single-phase winding, and the armature winding on mover assembly is connected with a cross streams power supply.
In the aforementioned fault-tolerant, described stator and mover iron core form by silicon steel plate stacking.
Owing to having adopted technique scheme, the present invention integrates the advantage of doubly salient permanent magnet motor and transverse flux linear motor, have advantages of high reliability, high pushing force density, owing to having realized electromagnetic decoupling between phase and phase, its ability that operates with failure is comparatively outstanding.The modular design of the present invention is so that linear electric motors are convenient to adopt heterogeneous structure.Therefore, the present invention compared with prior art, the present invention has advantages of that not only reliability is high, pushing force density is high, efficient is high, but also have advantages of simple in structure, be easy to process.The present invention can be used for the field that the reliability service to system has higher requirements, and particularly continuous operation is had the application scenario such as Aero-Space, military equipment of strict demand.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic perspective view of mover iron core;
Fig. 3 is the floor map of mover iron core.
Being labeled as in the accompanying drawing: 1-stator, 2-permanent magnet, 3-armature winding, 4-stator salient poles, 5-mover iron core, 6-" " font iron core, 7-mover salient pole.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.But not as any limitation of the invention foundation.
Embodiments of the invention: the structural representation of a kind of fault-tolerant of the present invention as shown in Figure 1, these linear electric motors comprise stator 1 and are located at m mover assembly on the stator 1; Stator 1 an and m mover assembly all adopts the double-salient-pole structure; Be equipped with permanent magnet 2 and armature winding 3 on each mover assembly, armature winding 3 is vertical with the direction of motion of mover assembly with the plane, main flux place that permanent magnet 2 produces.Described m is the number of phases, when m 〉=3, adjacent two mover assemblies be stagger pole span τ 2/m doubly distance arrange.Described stator 1 is the strip plate profile structure, and the contact-making surface of stator 1 and mover assembly is provided with the stator salient poles 4 of horizontally set.As shown in Figures 2 and 3, described mover assembly comprises mover iron core 5, mover iron core 5 is " door bolt " font, is inlaid with permanent magnet 2 between the crossbeam at " door bolt " font top, is wound with armature winding 3 on " one " font iron core 6 between the two vertical frames of " door bolt " font; The direction that is arranged on the mover salient pole 7 on the mover iron core both sides of armature winding 3 both sides is corresponding with stator salient poles 4 with spacing.Described mover assembly is modular assembly, and namely each armature winding 3 is single-phase winding, and the armature winding 3 on mover assembly is connected with a cross streams power supply.Described stator 1 and mover iron core 5 form by silicon steel plate stacking.
The below further specifies as follows to implementation process of the present invention and principle:
Structural principle of the present invention as shown in Figure 1, Fig. 1 is the schematic diagrames of linear electric motors of the present invention when being three-phase structure, these linear electric motors comprise stator 1 and mover assembly, the strip plate profile structure of stator 1 for forming with silicon steel plate stacking, stator 1 is provided with the stator salient poles 4 that is arranged in parallel, vertical vertical arrangement (transversely arranged) of the direction of stator salient poles 4 and stator 1 with the contact-making surface of mover assembly.The stator salient poles 4 of stator 1 is provided with at least one mover assembly.As shown in Figures 2 and 3, mover assembly comprises mover iron core 5, mover iron core 5 " door bolt " font structure for forming with silicon steel plate stacking is inlaid with permanent magnet 2 between the crossbeam at " door bolt " font top, the magnetizing direction of permanent magnet 2 is direction shown in the arrow among Fig. 3.Be wound with armature winding 3 on " one " font iron core 6 between the two vertical frames of " door bolt " font; The plane, main flux place that armature winding produces is vertical with the direction of motion of mover assembly.Vertical with the direction of motion of mover assembly.Realize structure isolation and electromagnetic decoupling, can improve pushing force density, can improve the fault freedom of linear electric motors simultaneously, promoted the linear electric motors ability that operates with failure.Each armature winding 3 is single-phase winding, and 3 of armature winding on mover assembly are connected with a cross streams power supply, form modular assembly.Can play the effect of alternate heat isolation and electricity isolation, and electric motor winding end is not overlapping has played physically-isolated effect, thereby avoids phase fault.A mover assembly is set consists of the single-phase linear motor, use 3 mover assemblies can consist of the three-phase linear motor, also can use a plurality of formation polyphase linear motors.When adopting 3 above mover assemblies, adjacent two mover assemblies are to stagger the 2/m times of distance of pole span τ, and m is the number of phases of motor, and Fig. 1 is the instance graph of three-phase linear motor.Each is wound with the direction of mover salient pole 7 of mover iron core 5 both sides of armature winding and spacing and stator salient poles 4 corresponding (so-called corresponding refers to that the salient pole size of stator and mover is identical with spacing).Adopt the double-salient-pole syndeton between stator 1 and the mover assembly, described double-salient-pole syndeton is that stator and rotor are the salient pole tooth slot structure, and such as the position of 7 indications of mark among Fig. 1, as seen from the figure, stator 1 and mover iron core 5 are the salient pole tooth slot structure.Because permanent magnet is located on the mover assembly of motion, so the consumption of permanent magnet is less, can reduce manufacturing cost.Stator core and mover iron core adopt silicon steel plate stacking to form, and compare the powder soft-magnetic composite material that traditional horizontal magnetic field motor adopts, and have both simplified processing and the assembling of motor, have saved again cost.

Claims (6)

1. fault-tolerant is characterized in that: comprise stator (1) and be located at m mover assembly on the stator (1); Stator (1) and m mover assembly are the double-salient-pole structure; Be equipped with permanent magnet (2) and armature winding (3) on each mover assembly, armature winding (3) is vertical with the direction of motion of mover assembly with the plane, main flux place that permanent magnet (2) produces.
2. described fault-tolerant according to claim 1, it is characterized in that: described m is the number of phases, when m 〉=3, adjacent two mover assemblies be stagger pole span τ 2/m doubly distance arrange.
3. described fault-tolerant according to claim 1, it is characterized in that: described stator (1) is the strip plate profile structure, stator (1) and the contact-making surface of mover assembly are provided with the stator salient poles (4) of horizontally set.
4. described fault-tolerant according to claim 1, it is characterized in that: described mover assembly comprises mover iron core (5), mover iron core (5) is " door bolt " font, be inlaid with permanent magnet (2) between the crossbeam at " door bolt " font top, be wound with armature winding (3) on " one " font iron core (6) between the two vertical frames of " door bolt " font; The direction that is arranged on the mover salient pole (7) on mover iron core (5) both sides of armature winding (3) both sides is corresponding with stator salient poles (4) with spacing.
5. described fault-tolerant according to claim 1, it is characterized in that: described mover assembly is modular assembly, be that each armature winding (3) is single-phase winding, the armature winding (3) on mover assembly is connected with a cross streams power supply.
6. described fault-tolerant according to claim 1, it is characterized in that: described stator (1) and mover iron core (5) form by silicon steel plate stacking.
CN201110182782.1A 2011-07-01 2011-07-01 Fault-tolerant transverse magnetic-field permanent-magnet linear motor Active CN102857065B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109067043A (en) * 2018-09-26 2018-12-21 深圳大学 A kind of plane Magneticflux-switching type magneto

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746670A (en) * 1980-09-04 1982-03-17 Matsushita Electric Ind Co Ltd Brushless linear servo motor
US4661730A (en) * 1984-03-28 1987-04-28 Shinko Electric Co., Ltd Linear pulse motor
US6522035B1 (en) * 2001-07-05 2003-02-18 Anorad Corporation Forcer and associated three phase linear motor system
CN1235328C (en) * 2000-03-02 2006-01-04 株式会社信浓电子 Linear motor
CN101027827A (en) * 2004-09-22 2007-08-29 西门子公司 Electric machine
CN101065890A (en) * 2004-09-30 2007-10-31 西门子公司 Polygonal motor
CN101834511A (en) * 2010-04-30 2010-09-15 浙江大学 Planar transverse magnetic flux switch flux linkage permanent magnet linear motor
CN201656740U (en) * 2010-05-12 2010-11-24 东南大学 Complementary type magnetic flux switching permanent magnet linear motor and motor module comprising same
CN202103559U (en) * 2011-07-01 2012-01-04 中国江南航天工业集团林泉电机厂 Fault-tolerant type transverse-magnetic-field permanent magnet linear motor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746670A (en) * 1980-09-04 1982-03-17 Matsushita Electric Ind Co Ltd Brushless linear servo motor
US4661730A (en) * 1984-03-28 1987-04-28 Shinko Electric Co., Ltd Linear pulse motor
CN1235328C (en) * 2000-03-02 2006-01-04 株式会社信浓电子 Linear motor
US6522035B1 (en) * 2001-07-05 2003-02-18 Anorad Corporation Forcer and associated three phase linear motor system
CN101027827A (en) * 2004-09-22 2007-08-29 西门子公司 Electric machine
CN101065890A (en) * 2004-09-30 2007-10-31 西门子公司 Polygonal motor
CN101834511A (en) * 2010-04-30 2010-09-15 浙江大学 Planar transverse magnetic flux switch flux linkage permanent magnet linear motor
CN201656740U (en) * 2010-05-12 2010-11-24 东南大学 Complementary type magnetic flux switching permanent magnet linear motor and motor module comprising same
CN202103559U (en) * 2011-07-01 2012-01-04 中国江南航天工业集团林泉电机厂 Fault-tolerant type transverse-magnetic-field permanent magnet linear motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109067043A (en) * 2018-09-26 2018-12-21 深圳大学 A kind of plane Magneticflux-switching type magneto

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Effective date of registration: 20171122

Address after: 150090 West Dazhi street, Nangang District, Harbin, Heilongjiang Province, No. 92

Patentee after: Harbin Institute of Technology

Address before: Bridge Street 550008 Guizhou city of Guiyang province No. 28

Patentee before: Linquan Motor Factory, China Jiangnan Space Group