CN102545423A - Permanent magnet motor with transverse magnetic field - Google Patents
Permanent magnet motor with transverse magnetic field Download PDFInfo
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- CN102545423A CN102545423A CN201010585225XA CN201010585225A CN102545423A CN 102545423 A CN102545423 A CN 102545423A CN 201010585225X A CN201010585225X A CN 201010585225XA CN 201010585225 A CN201010585225 A CN 201010585225A CN 102545423 A CN102545423 A CN 102545423A
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Abstract
The invention provides a permanent magnet motor with a transverse magnetic field, which comprises a shell, a plurality of magnet yokes, a plurality of permanent magnets and a center shaft. The magnet yokes are located on the inner side of the shell, the permanent magnets correspond to the magnet yokes, each magnet yoke is provided with two arms arranged oppositely and a channel located between the arms, the permanent magnets are located outside the channels, the arms are provided with tail ends corresponding to the permanent magnets, end surfaces of the tail ends face to magnetic pole surfaces of the permanent magnets, and an air gap is arranged between the end surface of each tail end and the corresponding magnetic pole surface.
Description
Technical field
The present invention relates to the magneto field, relate in particular to the magneto on a kind of wheel hub that is applicable to motor vehicle and boats and ships.
Background technology
In the prior art; Permanent-magnetic motor with transverse magnetic field is a kind of specific type of electric machine with higher torque density; Have development prospect in fields such as the electric propulsion of direct-driving type naval vessel/vehicle, wind generator systems, common permanent-magnetic motor with transverse magnetic field is designed to the flat magnetic field structure of monolateral stator, and permanent magnet is attached to rotor surface equably; And adjacent permanent magnet is magnetized into different polarities respectively; And U-shaped stator core module is evenly distributed on the whole circumference with the distance of multiple pole span, and opposite the two poles of the earth of the not corresponding permanent magnet polarity of two toothed portions of U-shaped stator core, and between two adjacent iron cores, is placed with the auxiliary stator magnetic circuit that soft iron material is processed; Form closed magnetic loop, to reduce the influence of adjacent pole to the work main pole.
A kind of permanent-magnetic motor with transverse magnetic field that is disclosed for No. 200420017508.4 like Chinese invention patent; It comprises three unit; Each unit comprises a U-shaped silicon steel sheet yoke, be positioned at armature winding and the permanent magnet pole that extends into said U-lag of the U-lag of each U-shaped silicon steel sheet yoke, has air gap between silicon steel sheet yoke and the permanent magnet pole in said each unit; In addition; The armature winding of this horizontal magnetic field motor is vertical each other on the locus with stator teeth groove structure; Stator dimensions and armature winding can be restricted each other, can improve electricity (magnetic) current density of motor easily through the effective area of the said air gap of change and the number of turn of armature winding; Thereby improve motor power output and and overload torque, solved the problem of the size mutual restriction of teeth groove motor stator (or rotor) tooth and groove on same cross section.Yet above-mentioned electric machine structure is complicated difficult with assembling, because permanent magnet pole protrudes in the U-lag; Make the air gap of said each unit independently exist, need assembling formation respectively, this required precision to the assembling processing of each parts of motor internal is very high; The air gap many (for example, for three phase electric machine, the double-sided stator structure need guarantee six air gaps) that when assembling, need guarantee; So just be difficult to guarantee the size of each air gap, and, make the precision of the size of air gap described in the assembling process be difficult to more guarantee because motor unilateral magnetic force in assembling process exists constantly; Often cause problems such as the air gap size is inhomogeneous, deviation is bigger easily; Thereby influence torque overload multiple and torque density, can make the bad stability of motor, power output reduces.Therefore, this motor in enormous quantities, middle low power field cheaply, be difficult to be able to promote.
Therefore, demand providing a kind of new permanent-magnetic motor with transverse magnetic field urgently, to address the above problem.
Summary of the invention
The technical problem that the present invention solves provides a kind of permanent-magnetic motor with transverse magnetic field, and it can reduce the difficulty of assembling and processing greatly, improves production.
For solving the problems of the technologies described above; Technical scheme of the present invention is achieved in that a kind of permanent-magnetic motor with transverse magnetic field; Comprise casing, be positioned at the inboard some yokes of casing, the some permanent magnets and a central shaft of corresponding setting with said yoke; Said each yoke is provided with two arms that are oppositely arranged and the conduit between said arm, and said permanent magnet is positioned at outside the said conduit, and said arm is provided with the end with the corresponding setting of said permanent magnet; This terminal end face is over against the magnetic pole strength setting of permanent magnet, and is provided with air gap between said end face and the magnetic pole strength.
Further, the end face of said arm and the magnetic pole strength of permanent magnet are parallel to each other, and said air gap distributes along said yoke arm outer face and be evenly big or small.
Further, said yoke and permanent magnet all along the circumferential direction evenly distribute, and along the central shaft setting that axially superposes, and the quantity of said permanent magnet is the twice of yoke quantity.
Further, said permanent magnet is positioned at the inner surface of said casing, and the magnetic pole strength polarity of two pairing permanent magnets of arm of said each yoke is opposite.
Further, said yoke takes the shape of the letter U, and is provided with magnetism-isolating loop between the yoke of adjacent two stack settings.
Further, said permanent-magnetic motor with transverse magnetic field further comprises the support of the armature winding that passes said conduit, fixing said yoke and is positioned at the positioning baffle in the said yoke outside.
Further, the end of the arm of said yoke broadens, and inboard that should end is provided with an inclined plane.
Further, the area of the magnetic pole strength of said permanent magnet is not less than the face area of said yoke arm.
Further, said permanent-magnetic motor with transverse magnetic field further is provided with position transducer, and this position transducer is positioned at the end of said arm.
Further, said central shaft is a quill shaft, and said permanent magnet is and is provided with between watt shape and the two adjacent permanent magnets at a distance from the magnetic grid.
Compared with prior art, permanent-magnetic motor with transverse magnetic field of the present invention is located at permanent magnet the outside of yoke groove and between the arm of yoke and permanent magnet, is formed an air gap, has reduced the difficulty of the assembling and the processing of motor.
Description of drawings
Shown in Figure 1ly be the axial section sketch map of permanent-magnetic motor with transverse magnetic field of the present invention, and be example, because cross-section structure symmetry up and down only marks the first half among the figure with common three-phase structure; Marked the main flux path among the figure, supposed that direction is shown in arrow.
Shown in Figure 2 is the yoke, permanent magnet of permanent-magnetic motor with transverse magnetic field according to the invention and the stereogram after the armature winding assembling.
Embodiment
Like Fig. 1, shown in 2; The present invention provides a kind of permanent-magnetic motor with transverse magnetic field 100, and it comprises a central shaft 1, bearing 2,12, play support 3, lead-out wire 4, end cap 5,11, some permanent magnets 6, some armature winding 7, some yokes 8, casing 9, position transducer 10, the magnetism-isolating loop 13 between adjacent two yokes of fixation, be positioned at the positioning baffle 15,16 and the clamp nut 14 in the said yoke outside.
Please join shown in Figure 1ly, said central shaft 1 is a quill shaft, and it can supply passing of lead-out wire 4.The spatial accommodation of said yoke 8 is accommodated in said end cap 5,11 and the 9 common formation one of said casing.
Said yoke 8 is along the circumferential direction equidistantly arranged and is provided with; And each yoke 8 roughly takes the shape of the letter U and be the silicon steel sheet material; It comprises two arms being oppositely arranged 81 and the U-lag road 82 between said arm 81; Said arm 81 be provided with the end (can cooperate ginseng shown in Figure 2) that broadens, and this end is provided with an end face towards said permanent magnet 6, this end face and said permanent magnet 6 are over against setting; And be formed with an air gap 18 between the end face of this arm 81 and the permanent magnet 6, can supply magnetic field to connect said end face and permanent magnet 6.
Said permanent magnet 6 is positioned at the said U-lag outside, and along the circumferential direction equidistantly evenly distributes and stick on the internal face of casing 9, constitutes main pole, produces the main field of motor thus; The quantity of said permanent magnet 6 is the twice of said yoke 8 quantity; And two arms, the 81 corresponding settings of one group of permanent magnet 6 in the two adjacent groups permanent magnet 6 and said yoke 8 in a circumferential direction; Another group permanent magnet 6 is then between adjacent two yokes 8; And the polarity of two adjacent permanent magnets 6 is opposite to be provided with and to be provided with along alignment on the axis direction of central shaft, and the direction of magnetization is radially.The area of the magnetic pole strength of said permanent magnet 6 is not less than the face area of the arm 81 that is oppositely arranged, and parallel setting.Around 8 rotations of said yoke, said air gap 18 is between the magnetic pole strength of the end face of said yoke 8 and permanent magnet 6, and size evenly with the rotation of casing 9 for said permanent magnet 6.
The endoporus of said end cap 5,11 links to each other with bearing 2,12, and male half coupling and casing 9 are fixedly connected, with the permanent magnet 6 common rotors of forming; Said armature winding 7, stator core, support 3 and central shaft 1, a magnetism-isolating loop 13, positioning baffle 15,16 and locking nut 14 parts be made up of yoke 8 constitute the stator of motor jointly; Wherein, Each U-shaped yoke 8 and run through the armature winding 7 in U-lag road 82, corresponding two permanent magnets 6 are a facies unit (promptly being called a phase); As shown in Figure 1, permanent-magnetic motor with transverse magnetic field of the present invention is a three-phase structure, is promptly formed along the axial direction stack setting of said central shaft by three unit A, B, C; And the plurality of U-shaped yoke 8 in every phase stator is uniformly distributed along the circumference; Be provided with magnetism-isolating loop 13 between the stator of adjacent two phases, this magnetism-isolating loop 13 is held between said adjacent two U-shaped yokes 8, and said magnetism-isolating loop 13 distributed and arranged along the circumferential direction.
The tap outlet of said armature winding 7 and transducer 10 signal outlets form lead-out wire 4, and it leads to outside the motor in the central shaft 1 of said hollow.Controller of the present invention can be matched brush DC drive pattern or permanent-magnet synchronous drive pattern, and also optional have the Position Control mode or do not have the Position Control mode.
See also shown in Figure 2ly, it is motor stator and the three-dimensional structure diagram of permanent magnet pole 6 in the phase structure, and wherein, the U-shaped yoke 8 of said stator equidistantly evenly distributes along circumference, and the inboard of yoke 8 is installed in the unified integral body of formation on the said support 3.The said direction of magnetization can be joined among Fig. 2 arrow and represented.The U-shaped yoke 8 of said permanent-magnetic motor with transverse magnetic field and armature winding 7 is vertical setting each other on the locus, and the feasible magnetic field of passing armature winding 7 is for crossing alternating magnetic field, and the back electromotive force of inducting is a transformer electromotive force.
Said position transducer 10 is positioned on the silicon steel sheet yoke 8 position near permanent magnet 6; Be used for realizing motor is carried out closed-loop control, wherein, this position transducer 10 is positioned on the arm 81 of said U-shaped yoke 8; And position transducer 10 also can adopt other modes; Like photoelectric encoder, as long as resolver etc. are the position of detection rotor that can be sensitive.
The U-lag road 82 of permanent-magnetic motor with transverse magnetic field 100 of the present invention through permanent magnet 6 being positioned over said yoke 8 outside and with the corresponding one by one setting of arm 81 of yoke 8; And between yoke 8 arms 81 and permanent magnet 6, form a uniform air gap 18; And the air gap 18 of every phase structure is axially aligned and is linked to be the total air gap that extends vertically along central shaft 1; So; Only need to guarantee that this total air gap evenly is provided with, just can guarantee easily to assemble with the course of processing in precision, and structural manufacturing process is simple relatively; Independently be arranged at respect to the air gap in every phase structure of the prior art in the U-lag of yoke of U-shaped and need guarantee the assembly precision of each air gap respectively, the present invention greatly reduces processing, assembling difficulty; Simultaneously, guaranteeing under the constant situation of motor size that the present invention can be through the effective area that increases magnetic pole, the method that reduces air gap 18 sizes; Just can increase the magnetic flux of motor easily, thereby improve power of motor density, make torque density increase; Promptly increase the area of the magnetic pole strength of arm 81 distal end faces and permanent magnet 6, just can increase the area of said magnetic pole greatly, specifically; Join shown in Figure 2; Be provided with an inclined plane 83 and the end of arm 81 is broadened like the 81 terminal inboards of the arm among the present invention, increased the area of arm 81 distal end faces, can increase magnetic flux with this.
In addition, owing to permanent magnet 6 sticks on the casing, thus the magnetic pull on having eliminated axially, thus convenience brought to fit on; Stator coil easy mounting and do not have the end loss, every independent fully mutually, do not have electromagnetic coupled each other, and can high torque (HT) in the rotating speed of broadness and the power bracket with efficiently move.
Each phase structure is independent fully among the present invention; Can conveniently be combined into any phase motor by application need; Its assembling course of processing is simple, and for each parts of motor, 8 need of U type yoke are in blocks with the silicon steel sheet punching press; And then stamping forming silicon steel sheet just stacked again and can accomplish, the unified integral body of the simple rack-mount formation of 8 need of U type silicon steel sheet yoke; And, only need to adopt Vehicle Processing for parts such as support 3, positioning baffle 15,16, central shaft 1, end cap 5,11 and casings 9, and milling machine processing, processing methods such as line cutting and electric spark just can guarantee the required precision of required workpiece; The coiling of ceoncentrically wound coil only needs simple frock to accomplish, and the paint-dipping process dipping lacquer that requires according to the required class of insulation more just can access qualified armature winding; For rotor, only need a watt type permanent magnet is simply sticked on the casing, for easy to operate; Can be earlier with being attached on the inner surface of casing 9 at a distance from magnetic grid 17; Permanent magnet 6 is attached between the said separated magnetic grid 17 one by one, this mode accurate positioning is easy to realize again.Even for guaranteeing air gap 18, we can assemble motor stator earlier, machine or electric spark etc. again; Can not only in maximum magnitude, guarantee the air gap deviation of motor like this; Can also make air gap 18 sizes littler, thereby make the torque overload multiple of motor bigger, torque density is higher.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and the scope of technical scheme of the present invention.
Claims (10)
1. permanent-magnetic motor with transverse magnetic field; Comprise casing, be positioned at the inboard some yokes of casing, the some permanent magnets and a central shaft of corresponding setting with said yoke; Said each yoke is provided with two arms that are oppositely arranged and the conduit between said arm; It is characterized in that: said permanent magnet is positioned at outside the said conduit; Said arm is provided with the end with the corresponding setting of said permanent magnet, and this terminal end face is over against the magnetic pole strength setting of permanent magnet, and is provided with air gap between said end face and the magnetic pole strength.
2. permanent-magnetic motor with transverse magnetic field according to claim 1 is characterized in that: the end face of said arm and the magnetic pole strength of permanent magnet are parallel to each other, and said air gap distributes along said yoke arm outer face and be evenly big or small.
3. permanent-magnetic motor with transverse magnetic field according to claim 2 is characterized in that: said yoke and permanent magnet all along the circumferential direction evenly distribute, and along the central shaft setting that axially superposes, and the quantity of said permanent magnet is the twice of yoke quantity.
4. permanent-magnetic motor with transverse magnetic field according to claim 3 is characterized in that: said permanent magnet is positioned at the inner surface of said casing, and the magnetic pole strength polarity of two pairing permanent magnets of arm of said each yoke is opposite.
5. permanent-magnetic motor with transverse magnetic field according to claim 4 is characterized in that: said yoke takes the shape of the letter U, and is provided with magnetism-isolating loop between the yoke of adjacent two stack settings.
6. permanent-magnetic motor with transverse magnetic field according to claim 5 is characterized in that: said permanent-magnetic motor with transverse magnetic field further comprises the support of the armature winding that passes said conduit, fixing said yoke and is positioned at the positioning baffle in the said yoke outside.
7. according to any described permanent-magnetic motor with transverse magnetic field in the claim 1 to 6, it is characterized in that: the end of the arm of said yoke broadens, and inboard that should end is provided with an inclined plane.
8. permanent-magnetic motor with transverse magnetic field according to claim 7 is characterized in that: the area of the magnetic pole strength of said permanent magnet is not less than the face area of said yoke arm.
9. permanent-magnetic motor with transverse magnetic field according to claim 8 is characterized in that: said permanent-magnetic motor with transverse magnetic field further is provided with position transducer, and this position transducer is positioned at the end of said arm.
10. permanent-magnetic motor with transverse magnetic field according to claim 9 is characterized in that: said central shaft is a quill shaft, and said permanent magnet is and is provided with between watt shape and the two adjacent permanent magnets at a distance from the magnetic grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010585225.XA CN102545423B (en) | 2010-12-13 | 2010-12-13 | Permanent magnet motor with transverse magnetic field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010585225.XA CN102545423B (en) | 2010-12-13 | 2010-12-13 | Permanent magnet motor with transverse magnetic field |
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| Publication Number | Publication Date |
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| CN102545423A true CN102545423A (en) | 2012-07-04 |
| CN102545423B CN102545423B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010585225.XA Active CN102545423B (en) | 2010-12-13 | 2010-12-13 | Permanent magnet motor with transverse magnetic field |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780342A (en) * | 2012-08-27 | 2012-11-14 | 西北工业大学 | Four-phase transverse magnetic field permanent-magnet motor with magnetism-collected structure |
| CN103259386A (en) * | 2013-06-03 | 2013-08-21 | 江苏大学 | Stator fixed type eddy current retarder |
Citations (6)
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| CN2689571Y (en) * | 2004-03-22 | 2005-03-30 | 华中科技大学 | Permanent magnbetic motor with lateral magnetic field |
| US20070013253A1 (en) * | 2005-06-29 | 2007-01-18 | Dubois Maxime R | Transverse flux electrical machine with segmented core stator |
| CN101114777A (en) * | 2006-07-24 | 2008-01-30 | 株式会社日立产机系统 | Claw-teeth-type rotating electrical machine |
| US20080129157A1 (en) * | 2006-12-04 | 2008-06-05 | Shimano Inc. | Electric generating coil assembly and electric generator hub |
| CN101588119A (en) * | 2009-06-25 | 2009-11-25 | 西安交通大学 | Magnetism-gathering transverse magnetic field motor with claw-pole type stator |
| CN202019249U (en) * | 2010-12-13 | 2011-10-26 | 苏州益高电动车辆制造有限公司 | Transverse magnetic field permanent magnetic motor |
-
2010
- 2010-12-13 CN CN201010585225.XA patent/CN102545423B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689571Y (en) * | 2004-03-22 | 2005-03-30 | 华中科技大学 | Permanent magnbetic motor with lateral magnetic field |
| US20070013253A1 (en) * | 2005-06-29 | 2007-01-18 | Dubois Maxime R | Transverse flux electrical machine with segmented core stator |
| CN101114777A (en) * | 2006-07-24 | 2008-01-30 | 株式会社日立产机系统 | Claw-teeth-type rotating electrical machine |
| US20080129157A1 (en) * | 2006-12-04 | 2008-06-05 | Shimano Inc. | Electric generating coil assembly and electric generator hub |
| CN101588119A (en) * | 2009-06-25 | 2009-11-25 | 西安交通大学 | Magnetism-gathering transverse magnetic field motor with claw-pole type stator |
| CN202019249U (en) * | 2010-12-13 | 2011-10-26 | 苏州益高电动车辆制造有限公司 | Transverse magnetic field permanent magnetic motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780342A (en) * | 2012-08-27 | 2012-11-14 | 西北工业大学 | Four-phase transverse magnetic field permanent-magnet motor with magnetism-collected structure |
| CN103259386A (en) * | 2013-06-03 | 2013-08-21 | 江苏大学 | Stator fixed type eddy current retarder |
| CN103259386B (en) * | 2013-06-03 | 2015-08-19 | 江苏大学 | The fixed eddy current retarder of a kind of stator |
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| Publication number | Publication date |
|---|---|
| CN102545423B (en) | 2015-01-21 |
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