CN104578654A - Mixing torque motor and traction machine adopting same - Google Patents
Mixing torque motor and traction machine adopting same Download PDFInfo
- Publication number
- CN104578654A CN104578654A CN201410734074.8A CN201410734074A CN104578654A CN 104578654 A CN104578654 A CN 104578654A CN 201410734074 A CN201410734074 A CN 201410734074A CN 104578654 A CN104578654 A CN 104578654A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- magnetic material
- traction machine
- permeability magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a mixing torque motor which includes stators and rotors positioned on the peripheries of the stators, wherein the rotors include barrel-shaped rotor iron cores; a plurality of permanent magnets are distributed on the inner walls of the rotor iron cores at intervals; the polarities of two adjacent permanent magnets are opposite, and permeability magnetic materials are arranged between the two adjacent permanent magnets. The invention further discloses a traction machine adopting the mixing torque motor. Compared with a conventional gearless permanent magnet synchronous traction machine, the traction machine provided by the invention reduces magnetic steel using amount and lowers the motor cost, so that the complete machine cost of the traction machine is reduced and the structure is compact and the size is small; operational maximum speed of the traction machine is further improved through flux weakening speed expansion due to structural salient poles added on the rotors; the degree of difficulty of detecting positions of rotor magnetic poles through adopting the position sensor free control algorithm is reduced and greater possibility of de-encoding of the permanent magnet traction machine is provided due to the existence of the structural salient poles.
Description
Technical field
The invention belongs to motor technology field, specifically relate to and a kind ofly mix torque motor and adopt this traction machine of this mixing torque motor.
Background technology
At present, elevator traction machine mainly threephase asynchronous machine or permagnetic synchronous motor.Threephase asynchronous machine volume is large, noise large, inefficiency, and is equipped with baroque deceleration device, makes whole traction machine complex structure, and holistic cost improves.Permanent magnetic synchronous traction machine is without the need to deceleration device, and efficiency is high, noise is little, progressively replace threephase asynchronous machine, but rare earth material is expensive, limits the development of permagnetic synchronous motor.
In prior art, develop a kind of switched reluctance machines, utilize magnetic resistance minimum principle, namely magnetic flux always closes along the path that magnetic resistance is minimum.Its stator core and rotor have several tooth pole, are built up by punching silicon-steel, stator tooth extremely on be wound with coil, the rotating magnetic field of machine operation is provided.This motor does not use permanent magnet, with low cost, but torque pulsation is large, runs noise and vibrates larger.
Another mixing torque motor is also disclosed in prior art, permanent-magnet torque and reluctance torque can be utilized simultaneously, as number of patent application be CN201210472407.5 patent document discloses a kind of permanent magnet reluctance type in-wheel motor, wherein disclosed rotor structure, the magnet steel of same polarity is installed, interval is with arc salient pole and magnetic conduction convex body, declare to reduce magnet steel consumption, but this kind of structure only uses a kind of polarity magnet steel, the distortion of its back-emf is larger, torque pulsation is comparatively large, and does not have use location transducer, cannot meet elevator traction machine positioning accuracy request.
Application number be CN201210056143.5 patent document discloses a kind of permanent magnetism assist in synchronization reluctance motor and installation method thereof, structure disclosed in the document, rotor is U or V-shaped, interpolation magnet steel, the method can utilize permanent magnetism and reluctance torque, but complex rotor structure, difficulty is installed in processing, and because digging multiple-grooved in rotor, structural strength is not high.
In addition, application number is the permanent magnet reluctance type in-wheel motor in the patent documentation of CN201210472407.5, the magnetizing direction of its magnet steel is identical (full N or full S), its ferromagnetic salient pole and rotor are one, ferromagnetic salient pole is as the magnetic pole of rotor, contrary with magnetic steel magnetic pole, its structure by force saliency, but torque ripple increases further.
Summary of the invention
For the technical problem existed in prior art, the invention provides and a kind ofly effectively can improve reluctance torque, reduce magnet steel consumption and the mixing torque motor of hi-Fix can be realized and adopt the traction machine of this mixing torque motor.
A kind of mixing torque motor, comprise stator and the rotor being positioned at stator periphery, described rotor comprises the rotor core of tubular, is intervally distributed with multiple permanent magnet at rotor core inwall, two adjacent permanent magnet polarities are contrary, between two adjacent permanent magnets, be provided with permeability magnetic material.
In the present invention, the existence of permeability magnetic material, motor d axle inductance and q axle inductance difference are strengthened, and motor presents structure " salient pole ".Introduce structure " salient pole ", transducer can be removed, the possibility realizing traction machine position Sensorless Control improves.
As preferably, relative to rotor core, each permeability magnetic material split is arranged.Adopt this technical scheme, facilitate the installation of each permeability magnetic material.
As preferably, each permanent magnet and permeability magnetic material are strip, and each permanent magnet is evenly distributed on rotor core inwall.
As preferred further, described permeability magnetic material, near rotor core inwall, forms stationary plane with fixed permanent magnet (as shown in Figure 4) between adjacent two permeability magnetic material opposite faces.Adopt this technical scheme, directly realize permanent magnet by permeability magnetic material fixing, not need on permanent magnet processing mounting holes groove etc., ensure that magnetic property and the bulk strength of permanent magnet.
As preferably, described permanent magnet towards the dual-side of one end of rotor axis with chamfering.Adopt this technical scheme, permanent magnet end face both sides directly do not contact with permeability magnetic material, and ensure that each space harmonics of permanent magnet air gap flux density distribution minimizes, the position avoiding permeability magnetic material to contact with permeability magnetic material produces leakage field, improves motor performance further.
As preferably, described permeability magnetic material is cambered surface towards the side of rotor axis.Permeability magnetic material adopts the arc permeability magnetic material of multisection type, the close amplitude of air gap first-harmonic magnetic can be improved, reduce leakage field and first-harmonic magnetic flux density waveforms aberration rate, can further improve motor torque simultaneously, improve motor salient pole ratio, the true form optimization of permeability magnetic material need require to carry out according to motor performance.
As preferably, permanent magnet and permeability magnetic material are straight pole or oblique electrode structure.The structure of permanent magnet and permeability magnetic material can be determined according to actual needs.Permanent magnet and permeability magnetic material are straight pole or oblique electrode structure, reduce the reluctance torque of motor further, and then reduce motor pulsation.
As preferably, the pole embrace of permanent magnet is 0.4 ~ 0.8.Permanent magnet can have different pole embraces, and pole embrace comprehensively can carry out according to performance and cost.As preferred further, the pole embrace of described permanent magnet is 0.6.
As preferably, permanent magnet and permeability magnetic material thickness is radially identical.The shape of permanent magnet and permeability magnetic material and thickness according to performance and cost comprehensive selection, by adjusting the shape of permanent magnet and permeability magnetic material, can optimize motor performance further.
A kind of mixing torque elevator traction machine, comprise support, be arranged on the motor on support, traction sheave relatively-stationary with motor rotor, and being arranged on the brake that support matches with traction sheave, described motor is the mixing torque motor described in above-mentioned any one technical scheme.
Compared with prior art, beneficial effect of the present invention is embodied in:
Traction machine of the present invention has fully utilized permanent-magnet torque and reluctance torque, less than switched reluctance machines torque pulsation, and noise poor efficiency is high.
Traction machine of the present invention, compares traditional gearless permanent-magnet synchronous traction machine and saves magnet steel consumption, reduce motor cost, and traction machine complete machine cost reduces, and compact conformation volume is little.
Traction machine of the present invention, owing to adding structure " salient pole " on rotor, makes to improve traction machine further by weak magnetism speed expansion and runs maximum speed.The existence of structure " salient pole ", makes by adopting the difficulty of position Sensorless Control algorithm detection rotor position of magnetic pole to reduce, for the encoder that goes of permanent-magnetic tractor provides larger possibility.
Traction machine of the present invention, be arc by the shape of permeability magnetic material at interval between adjustment permanent magnet, improve the close amplitude of air gap first-harmonic magnetic, reduce leakage field and first-harmonic magnetic flux density waveforms aberration rate, can further improve motor torque simultaneously, improve motor salient pole ratio, true form optimization need require to carry out according to motor performance.
Traction machine of the present invention, changes compared to traditional gearless permanent-magnet synchronous traction machine little, realizes difficulty low.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the traction machine with mixing torque motor of the present invention;
Fig. 2 is the main TV structure schematic diagram of the traction machine with mixing torque motor of the present invention;
Fig. 3 is the structural representation of the traction machine internal rotor shown in Fig. 1;
Fig. 4 is the partial enlarged drawing of the rotor shown in Fig. 3;
Fig. 5 is the magnetic line of force distribution schematic diagram with mixing torque motor of the present invention;
Fig. 6 is of the present invention with pole embrace during the work of mixing torque motor and motor cogging torque relation schematic diagram;
Fig. 7 is the comparison diagram of motor air gap magnetic close each harmonic when adopting arc permeability magnetic material and non-arc permeability magnetic material respectively;
Motor torque and time chart when Fig. 8 is not for adopting permeability magnetic material, employing arc material and adopting non-arc material;
Fig. 9 is motor d axle, q axle inductance and current relationship figure when adopting arc permeability magnetic material and non-arc permeability magnetic material respectively.
In above-mentioned accompanying drawing:
1, traction sheave; 2, rotor; 3, stator; 4, support; 5, transducer; 6, brake; 7, permanent magnet; 8, permeability magnetic material; 9, rotor core.
Embodiment
In order to make, object of the present invention, technical scheme and Advantageous Effects are more clear to be understood, below in conjunction with accompanying drawing, content of the present invention and embodiment is described in further detail.
As depicted in figs. 1 and 2, this mixing torque elevator traction machine comprises relatively turnable rotor 2 and stator 3, stator core has multiple tooth pole, is formed by silicon steel plate stacking, tooth extremely on be wound with three-phase windings; Rotor 2 is positioned at the periphery of stator 3, and stator 3 and rotor 2 can relatively rotate, and traction sheave 1 is connected with rotor 2, and rotor 2 and stator 3 are arranged on support 4, and support 4 and traction machine unsplit bedplate are integral type structure, and overall structure is simple and convenient.Transducer 5 is installed in support 4, and controller is according to transducer 5 detection rotor 2 position, and to each phase winding of stator 3 by certain regular power on/off, produce electromagnetic torque rotor driven 2 and rotate, brake 6 is installed on support both sides.There are two pairs of brakes 6 support 4 both sides, control rotor 2 by brake 6 with coordinating of rotor 2.
As shown in Figure 3 and Figure 4, rotor 2 comprises the rotor core 9 of tubular, is intervally distributed with multiple permanent magnet 7 at rotor core 9 inwall, and two adjacent permanent magnets 7 are contrary, have permeability magnetic material 8 between two adjacent permanent magnets 7.Permanent magnet 7 can adopt magnet steel.Relative to rotor core, each permeability magnetic material 8 split is arranged.Each permanent magnet 7 and permeability magnetic material 8 are strip, and each permanent magnet 7 is evenly distributed on rotor core 9 inwall.As required, the installation foot that can extend along rotor core 9 inwall near the processing of both sides, rotor core 9 end at permanent magnet 7, installation foot is fixed between permeability magnetic material 8 and rotor core 9.Permanent magnet 7 towards the dual-side of the end of rotor 2 axis with chamfering.Permeability magnetic material 8 is cambered surface towards the side of rotor 2 axis.
During work, two adjacent permanent magnets 7 polarity is contrary, and become a pair magnetic pole, the permeability magnetic material 8 between two adjacent permanent magnets is not independent as magnetic pole, and is coordinate with permanent magnet to realize electric machine structure salient pole, and the magnetic line of force distribution of concrete motor as shown in Figure 5.
During work, permanent magnet 7 provides permanent-magnet torque, and permeability magnetic material 8 provides reluctance torque, and the permagnetic synchronous motor mixed when permanent magnet pole embrace is 0.6 in the present embodiment when torque motor performance is 0.8 with conventional pole embrace is suitable, can save 1/4 magnet steel.As shown in Figure 6, when motor pole embrace is 0.6, cogging torque is minimum for pole embrace and motor cogging torque relation.Motor pole embrace is 0.6, namely ensure that and the stability that motor runs turn improves motor output torque.
In addition, as shown in Figure 4, permanent magnet 7 can be oblique electrode structure, and permeability magnetic material 8 also can be all oblique electrode structure with permanent magnet 7, to reduce the reluctance torque reducing motor further, and then reduces motor pulsation.
In addition, as shown in Figure 4, permeability magnetic material 8 is that cambered surface can adopt arc towards the side of rotor 2 axis, to improve air gap flux density fundamental voltage amplitude (as shown in Figure 7), to reduce leakage field and first-harmonic magnetic flux density waveforms aberration rate (as shown in Figure 7), the air gap magnetic pole fundamental voltage amplitude that first-harmonic magnetic of the present invention close arc permeability magnetic material is corresponding is as seen from Figure 7 higher than adopting the air gap flux density fundamental voltage amplitude that non-arc permeability magnetic material is corresponding, and the amplitude of all the other harmonic waves is substantially all that the harmonic amplitude that arc permeability magnetic material is corresponding is less than harmonic amplitude corresponding to non-arc permeability magnetic material.Fundamental voltage amplitude is higher, and high order harmonic component amplitude is less, then first-harmonic magnetic flux density waveforms aberration rate is less.The present invention simultaneously can further improve motor torque (as shown in Figure 8, compare with non-arc permeability magnetic material with without permeability magnetic material, during employing arc permeability magnetic material, torque T is larger), improve motor saliency ratio (as shown in Figure 9, compared to the motor without permeability magnetic material, when adopting arc permeability magnetic material, d, q axle inductance of motor is larger), true form optimization need require to carry out according to motor performance.
Claims (9)
1. a mixing torque motor, comprise stator (3) and be positioned at the rotor (2) of stator (3) periphery, described rotor (2) comprises the rotor core (9) of tubular, multiple permanent magnet (7) is intervally distributed with at rotor core (9) inwall, two adjacent permanent magnet (7) polarity are contrary, are provided with permeability magnetic material (8) between two adjacent permanent magnets (7).
2. mixing torque motor according to claim 1, is characterized in that, relative to rotor core (9), each permeability magnetic material (8) split is arranged.
3. mixing torque motor according to claim 1, is characterized in that, each permanent magnet (7) and permeability magnetic material (8) are strip, and each permanent magnet (7) is evenly distributed on rotor core (9) inwall.
4. mixing torque motor according to claim 1, it is characterized in that, described permeability magnetic material (8) is near rotor core (9) inwall, and adjacent two permeability magnetic materials (8) opposite face forms stationary plane with fixed permanent magnet (7).
5. mixing torque motor according to claim 1, is characterized in that, described permanent magnet (7) towards the dual-side of one end of rotor (2) axis with chamfering.
6. the mixing torque motor according to the arbitrary claim of claim 1-5, is characterized in that, described permeability magnetic material (8) is cambered surface towards the side of rotor (1) axis.
7. the mixing torque motor according to the arbitrary claim of claim 1-5, is characterized in that, described permanent magnet (7) and permeability magnetic material (8) are straight pole or oblique electrode structure.
8. the mixing torque motor according to the arbitrary claim of claim 1-5, is characterized in that, the pole embrace of described permanent magnet (7) is 0.4 ~ 0.8.
9. a mixing torque elevator traction machine, comprise support (4), be arranged on the motor on support (4), with the relatively-stationary traction sheave of motor rotor (1), and be arranged on the upper brake (6) matched with traction sheave (1) of support (4), it is characterized in that, described motor is the mixing torque motor described in the arbitrary claim of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734074.8A CN104578654A (en) | 2014-12-05 | 2014-12-05 | Mixing torque motor and traction machine adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410734074.8A CN104578654A (en) | 2014-12-05 | 2014-12-05 | Mixing torque motor and traction machine adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578654A true CN104578654A (en) | 2015-04-29 |
Family
ID=53094059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410734074.8A Pending CN104578654A (en) | 2014-12-05 | 2014-12-05 | Mixing torque motor and traction machine adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578654A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017036354A1 (en) * | 2015-08-28 | 2017-03-09 | 戴珊珊 | Permanent magnetic reluctance motor with independent ac excitation by outer rotor |
| CN109525063A (en) * | 2018-12-21 | 2019-03-26 | 沈阳工业大学 | A kind of efficient outer rotor hub motor structure of Low gullet torque |
| CN112456285A (en) * | 2020-12-03 | 2021-03-09 | 浙江弗尔德驱动科技有限公司 | Encoder mounting structure suitable for elevator hauler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2511037Y (en) * | 2001-12-27 | 2002-09-11 | 杨志坚 | Direct-driven permanent-magnet brushless DC motor |
| JP2013013243A (en) * | 2011-06-29 | 2013-01-17 | Honda Motor Co Ltd | Motor |
| CN103001360A (en) * | 2012-11-19 | 2013-03-27 | 吴正林 | Permanent magnet reluctance type in-wheel motor |
| CN204425156U (en) * | 2014-12-05 | 2015-06-24 | 浙江西子富沃德电机有限公司 | Mix torque motor and adopt the traction machine of this mixing torque motor |
-
2014
- 2014-12-05 CN CN201410734074.8A patent/CN104578654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2511037Y (en) * | 2001-12-27 | 2002-09-11 | 杨志坚 | Direct-driven permanent-magnet brushless DC motor |
| JP2013013243A (en) * | 2011-06-29 | 2013-01-17 | Honda Motor Co Ltd | Motor |
| CN103001360A (en) * | 2012-11-19 | 2013-03-27 | 吴正林 | Permanent magnet reluctance type in-wheel motor |
| CN204425156U (en) * | 2014-12-05 | 2015-06-24 | 浙江西子富沃德电机有限公司 | Mix torque motor and adopt the traction machine of this mixing torque motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017036354A1 (en) * | 2015-08-28 | 2017-03-09 | 戴珊珊 | Permanent magnetic reluctance motor with independent ac excitation by outer rotor |
| CN109525063A (en) * | 2018-12-21 | 2019-03-26 | 沈阳工业大学 | A kind of efficient outer rotor hub motor structure of Low gullet torque |
| CN112456285A (en) * | 2020-12-03 | 2021-03-09 | 浙江弗尔德驱动科技有限公司 | Encoder mounting structure suitable for elevator hauler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gan et al. | Investigation of skewing effects on the vibration reduction of three-phase switched reluctance motors | |
| CN201286055Y (en) | Salient pole permanent magnet synchronous motor | |
| CN107222075B (en) | Double-stator hybrid excitation motor with internal stator of T-shaped iron core | |
| US20130127280A1 (en) | Electric rotating machine and electric vehicle using the same | |
| CN105790456B (en) | A kind of three-phase hybrid excitation flux switch motor structure | |
| CN104052180B (en) | A kind of multiple symmetric winding flux switch motor and design of Windings method thereof | |
| CN104882978A (en) | Low-torque-ripple high-efficient permanent magnetic motor stator and rotor structure | |
| CN104253499A (en) | Direct-axis magnetic field enhanced type wide-range speed control permanent magnet brushless motor for electric automobile | |
| CN103795159A (en) | Stator-rotor double-permanent-magnet-type-vernier motor | |
| CN102355108B (en) | High-quality three-phase alternating current permanent magnet servo synchronous motor | |
| Wang et al. | A new hybrid excitation permanent magnet machine with an independent AC excitation port | |
| CN106655560B (en) | Stator permanent magnet motor | |
| CN204258453U (en) | A kind of stator and accordingly brshless DC motor and three-phase switch reluctance machine | |
| CN102522865B (en) | Multi-stator arc linear motor capable of reducing torque fluctuation | |
| CN110838779B (en) | Mixed excitation wound rotor and mixed excitation wound synchronous motor | |
| CN201608566U (en) | Stator core using elementary slot method for weakening clamping torque of permanent magnet motor | |
| CN103066722B (en) | High speed switch reluctance motor rotor with soft magnetic materials | |
| CN104578654A (en) | Mixing torque motor and traction machine adopting same | |
| CN202395540U (en) | High-quality three-phase AC permanent magnetic servo synchronous motor | |
| CN204425156U (en) | Mix torque motor and adopt the traction machine of this mixing torque motor | |
| CN109149818A (en) | A kind of low-cost and high-performance harmonic wave cuts the continuous pole permanent-magnet synchronous machine of polar form | |
| CN101051784B (en) | Wide speed regulating range permanent magnetic resistance synchronous motor and its speed regulating method | |
| CN203056717U (en) | Permanent-magnet reluctance type in-wheel motor | |
| CN104767336A (en) | Single-phase separately-excited magneto-resistive power generator | |
| CN103779991A (en) | Parallel type hybrid magnetic material motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |