CN202856572U - Magnetism-collected structure tetra-phase transverse magnetic field permanent magnetism motor - Google Patents
Magnetism-collected structure tetra-phase transverse magnetic field permanent magnetism motor Download PDFInfo
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- CN202856572U CN202856572U CN 201220428902 CN201220428902U CN202856572U CN 202856572 U CN202856572 U CN 202856572U CN 201220428902 CN201220428902 CN 201220428902 CN 201220428902 U CN201220428902 U CN 201220428902U CN 202856572 U CN202856572 U CN 202856572U
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Abstract
Disclosed is a magnetism-collected structure tetra-phase transverse magnetic field permanent magnetism motor, used for solving the problem of large magnetic leakage of the conventional transverse magnetic field permanent magnetism motor. According to the technical scheme, the magnetism-collected structure tetra-phase transverse magnetic field permanent magnetism motor adopts a permanent magnet (1), a rotor ring (2), and a rotor permanent magnet (8) to form a magnetism-collected structure rotor unit of a motor, and adopts a stator tooth (4), a stator permanent magnet (9), a stator groove (10), and an auxiliary iron core (13) to form a magnetism-collected structure stator unit of the motor, wherein an insulation ring (3) is arranged between the magnetism-collected structure rotor units of each phase; and an insulated panel (11) is arranged between the magnetism-collected structure stator units of each phase. As a magnetism-collected structure is employed, the maximum air gap magnetic field intensity of the permanent magnetism motor increases by 99.9% from 1.13T to 2.2584T in term of background technology while the magnetic leakage coefficient decreases by 17.4% from 1.303 to 1.076. As the self-localization force after the four phase combination is only 18% of that of the single phase, and the changing period is shortened from 180 of the single phase to the 45 degrees of the four phases, the motor torque ripple is reduced and the motor performance is improved.
Description
Technical field
The utility model relates to a kind of magneto, particularly relates to a kind of magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field.
Background technology
In traditional radial magnetic field motor, plane, magnetic line of force place all with the motor movement direction in same plane, can improve torque density by the mode that increases facewidth degree or increase groove area.But because stator tooth and groove are in the same section in the motor, when stator outer diameter one regularly, if increase facewidth degree, then groove area reduces, vice versa.Therefore, no matter change the facewidth degree of motor, still change the groove area of motor, torque density all can not get effective lifting.
1986, professor H.Weh. of Braunschweig, Germany Polytechnics proposed the permanent-magnetic motor with transverse magnetic field structure thought, made the circuit of motor and magnetic circuit not at same plane in structural design, overcame between well width and facewidth degree the mutually contradiction of restriction with this.Therefore the main magnetic circuit of permanent-magnetic motor with transverse magnetic field and motor movement perpendicular direction neither do not exist contradiction between conduction and toothed area, do not have contradiction between magnetic conduction and groove area yet.Thereby, can by adjusting axial magnetic circuit length and coil window area, with the size of change air-gap flux amount and winding magnetic potential, thereby realize high torque density.
Permanent-magnetic motor with transverse magnetic field is a kind of novel electric machine structure form, and motor torque has obtained the raising of essence, and it is large to have torque, and power output density is large, the electromagnetic load decoupling zero, and flexible design, control is simple; Rotating speed is not high, cancels gear drive, has improved precision and the reliability of whole device.These advantages make the TFPM motor can be fit to the application scenarios such as low speed, large torque, direct driving, should be used widely, but because the existence of permanent-magnetic motor with transverse magnetic field structure and other factors, so that the leakage field of permanent-magnetic motor with transverse magnetic field is large, pulsating torque is large, produce complicated, these shortcomings make it have significant limitation, are seriously restricting extensive use and the development of horizontal magnetic field motor.A large amount of researchers by theoretical and experimental demonstration the magnetic field leakage field be the main cause of permanent-magnetic motor with transverse magnetic field power factor reduction, such as professor Jiang Jianzhong of Shanghai university the logical method of shielding transverse magnetoresistance motor flux leakage has been proposed, the method has reduced leakage field to a certain extent, but also has this very large leakage field.Maximum magnetic field strength in the air gap is 1.13T.
Summary of the invention
In order to overcome the existing large deficiency of permanent-magnetic motor with transverse magnetic field leakage field, the utility model provides a kind of magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field.These magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field consist of mutually by four, every rotor unit and stator unit of comprising mutually, and rotor unit comprises the magnetism-collected structure rotor portion, stator unit comprises the magnetism-collected structure stationary part.Each phase structure counterpart of four phase structures is identical, is isolated by dead ring between each rotor unit.Owing to adopt magnetism-collected structure that leakage flux is flocked together, by stator tooth surface, air gap, rotor permanent magnet, be converted into the effective air gap magnetic flux, can strengthen air-gap field intensity.This structure is not changing on the integrally-built basis of motor, only needs to increase a small amount of permanent magnet and consists of magnetism-collected structure, just can reduce leakage field, improves the magnetic density of air gap.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field, comprise permanent magnet 1, rotor ring 2, dead ring 3, stator tooth 4, winding 7 and stator slot 10, be characterized in also comprising rotor permanent magnet 8, stator permanent magnet 9 and insulation board 11; Permanent magnet 1, rotor ring 2 and rotor permanent magnet 8 consist of the magnetism-collected structure rotor unit of motor, and permanent magnet 1 is connected in the madial wall of rotor ring 2, and adjacent two permanent magnet 1 magnetic are opposite; Rotor permanent magnet 8 is embedded in respectively the both sides of permanent magnet 1, its direction of magnetization be parallel to motor shaft to, permanent magnet 1 is concordant with the end face of rotor permanent magnet 8; The both sides rotor unit is connected with motor shaft 6 by bearing 12; Stator tooth 4, stator permanent magnet 9, stator slot 10 and auxiliary iron core 13 consist of the magnetism-collected structure stator unit of motor; Stator permanent magnet 9 is positioned over around stator tooth 4 ends, and the magnetizing direction of stator permanent magnet 9 is diametrical magnetization, and stator tooth 4 end faces are concordant with the upper surface of stator permanent magnet 9, and winding 7 is embedded in the stator slot 10; A plurality of via holes 14 and counter sink 15 distribute on the insulation board 11; Via hole 14 is used for fixedly auxiliary iron core 13, and counter sink 15 is used for fixedly lamination silicon steel sheet; Be provided with dead ring 3 between every phase magnetism-collected structure rotor unit, be provided with insulation board 11 between every phase magnetism-collected structure stator unit; End cap 5 is fixed in motor shaft 6 with stator unit.
Described stator slot 10 is made of 12 silicon steel sheets.
Described auxiliary iron core 13 is made of 12 silicon steel sheets.
The silicon steel sheet of described auxiliary iron core 13 is rectangles.
Described dead ring 3 is that nylon material is made.
Described insulation board 11 is that nylon material is made.
The beneficial effects of the utility model are: owing to adopt magnetism-collected structure, the maximum air gap magnetic field intensity of magneto is increased to 2.2584T by the 1.13T of background technology, has increased by 99.9%, and magnetic leakage factor is down to 1.076 by 1.303, has reduced by 17.4%.Since four after being combined to make by oneself virial only when single-phase 18%, and 180 ° 45 ° of foreshortening to four phase times of period of change when single-phase have reduced motor torque ripple to a great extent, have improved motor performance.
Below in conjunction with drawings and Examples the utility model is elaborated.
Description of drawings
Fig. 1 is the longitudinal section schematic diagram of the utility model magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field.
Fig. 2 is the partial enlarged drawing of magnetism-collected structure rotor unit among Fig. 1.
Fig. 3 is the structural representation of magnetism-collected structure stator unit among Fig. 1.
Fig. 4 is the structural representation of insulation board among Fig. 1.
Among the figure, the 1-permanent magnet; The 2-rotor ring; The 3-dead ring; The 4-stator tooth; The 5-end cap; The 6-motor shaft; The 7-winding; The 8-rotor permanent magnet; The 9-stator permanent magnet; The 10-stator slot; The 11-insulation board; The 12-bearing; The 13-auxiliary iron core; The 14-via hole; The 15-counter sink.
Embodiment
Following examples are with reference to Fig. 1～4.
The utility model magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field comprise permanent magnet 1, rotor ring 2, dead ring 3, stator tooth 4, end cap 5, motor shaft 6, winding 7, rotor permanent magnet 8, stator permanent magnet 9, stator slot 10, insulation board 11, bearing 12.The every phase structure of described motor is identical, and is made of rotor unit and two parts of stator unit, and every phase rotor unit structure is all identical, and every phase stator unit structure is all identical; Be provided with the dead ring 3 that nylon material is made between described every phase rotor unit, be provided with the insulation board 11 that nylon material is made between every phase stator unit.
Every phase rotor unit of motor is made of permanent magnet 1, rotor ring 2, rotor permanent magnet 8.With epoxy resin permanent magnet 1 is sticked at rotor ring 2 madial walls, adjacent two permanent magnet 1 magnetic are opposite; Rotor permanent magnet was embedded in the both sides of permanent magnet 1 in 8 minutes, its direction of magnetization be parallel to motor shaft to, to reduce leakage field, reach poly-magnetic effect, simultaneously, make permanent magnet 1 concordant with the end face of rotor permanent magnet 8, do not affect the air gap evenness.The both sides rotor unit is connected with motor shaft 6 by bearing 12.
The auxiliary iron core 13 that the stator slot 10 that every phase stator unit of motor is made of 12 pairs of stator tooths 4, stator permanent magnet 9,12 silicon steel sheets, 12 rectangle silicon steel sheets consist of consists of.The cylinder processing is carried out in stator tooth 4 ends, and stator permanent magnet 9 is positioned over around stator tooth 4 ends, and the magnetizing direction of stator permanent magnet 9 is radial magnetizing, consists of the magnetism-collected structure stationary part; Winding 7 is embedded in the stator slot 10.End cap 5 is fixed in motor shaft 6 with stator unit, makes stator unit axially not mobile.
A plurality of via holes 14 and counter sink 15 distribute on the insulation board 11.Via hole 14 is used for fixedly auxiliary iron core 13, and counter sink 15 is used for fixedly lamination silicon steel sheet.
Magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field stationary parts are made of plurality tile type stator permanent magnet 9, be positioned at motor stator tooth 4 ends around, be circle distribution, its direction of magnetization is diametrical magnetization, makes stator tooth 4 end faces concordant with the upper surface of stator permanent magnet 9.
Alternatively, the rotor portion of described horizontal magnetic field motor magnetism-collected structure and stationary part can separate.
Those skilled in the art can make up the magnetism-collected structure permanent-magnetic motor with transverse magnetic field of the different numbers of phases, different capacity grade on basis of the present utility model, this is that everybody is familiar with.
Claims (6)
1. magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field, comprise permanent magnet (1), rotor ring (2), dead ring (3), stator tooth (4), winding (7) and stator slot (10), characterized by further comprising rotor permanent magnet (8), stator permanent magnet (9) and insulation board (11); Permanent magnet (1), rotor ring (2) and rotor permanent magnet (8) consist of the magnetism-collected structure rotor unit of motor, and permanent magnet (1) is connected in the madial wall of rotor ring (2), and adjacent two permanent magnets (1) magnetic is opposite; Rotor permanent magnet (8) is embedded in respectively the both sides of permanent magnet (1), its direction of magnetization be parallel to motor shaft to, permanent magnet (1) is concordant with the end face of rotor permanent magnet (8); The both sides rotor unit is connected with motor shaft (6) by bearing (12); Stator tooth (4), stator permanent magnet (9), stator slot (10) and auxiliary iron core (13) consist of the magnetism-collected structure stator unit of motor; Stator permanent magnet (9) is positioned over around stator tooth (4) end, and the magnetizing direction of stator permanent magnet (9) is diametrical magnetization, and stator tooth (4) end face is concordant with the upper surface of stator permanent magnet (9), and winding (7) is embedded in the stator slot (10); Upper a plurality of via holes (14) and the counter sink (15) of distributing of insulation board (11); Via hole (14) is used for fixedly auxiliary iron core (13), and counter sink (15) is used for fixedly lamination silicon steel sheet; Be provided with dead ring (3) between every phase magnetism-collected structure rotor unit, be provided with insulation board (11) between every phase magnetism-collected structure stator unit; End cap (5) is fixed in motor shaft (6) with stator unit.
2. magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field according to claim 1, it is characterized in that: described stator slot (10) is made of 12 silicon steel sheets.
3. magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field according to claim 1, it is characterized in that: described auxiliary iron core (13) is made of 12 silicon steel sheets.
4. magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field according to claim 1, it is characterized in that: the silicon steel sheet of described auxiliary iron core (13) is rectangle.
5. magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field according to claim 1, it is characterized in that: described dead ring (3) is that nylon material is made.
6. magnetism-collected structure four phase permanent-magnetic motor with transverse magnetic field according to claim 1, it is characterized in that: described insulation board (11) is that nylon material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428902 CN202856572U (en) | 2012-08-27 | 2012-08-27 | Magnetism-collected structure tetra-phase transverse magnetic field permanent magnetism motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428902 CN202856572U (en) | 2012-08-27 | 2012-08-27 | Magnetism-collected structure tetra-phase transverse magnetic field permanent magnetism motor |
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| Publication Number | Publication Date |
|---|---|
| CN202856572U true CN202856572U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220428902 Withdrawn - After Issue CN202856572U (en) | 2012-08-27 | 2012-08-27 | Magnetism-collected structure tetra-phase transverse magnetic field permanent magnetism motor |
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|---|---|
| CN (1) | CN202856572U (en) |
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 |
| CN103346651A (en) * | 2013-07-05 | 2013-10-09 | 西北工业大学 | Four-phase double-faced flat plate type transverse magnetic field permanent magnet motor |
-
2012
- 2012-08-27 CN CN 201220428902 patent/CN202856572U/en not_active Withdrawn - After Issue
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 |
| CN103346651A (en) * | 2013-07-05 | 2013-10-09 | 西北工业大学 | Four-phase double-faced flat plate type transverse magnetic field permanent magnet motor |
| CN103346651B (en) * | 2013-07-05 | 2015-08-12 | 西北工业大学 | Four phase double-faced flat-sheet formula permanent-magnetic motor with transverse magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20140611 |
|
| RGAV | Abandon patent right to avoid regrant |