WO2011029233A1 - Moteur triphasé de type grand diamètre, à courant continu, sans balai et à aimant permanent, et procédé d'assemblage associé - Google Patents

Moteur triphasé de type grand diamètre, à courant continu, sans balai et à aimant permanent, et procédé d'assemblage associé Download PDF

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Publication number
WO2011029233A1
WO2011029233A1 PCT/CN2009/073874 CN2009073874W WO2011029233A1 WO 2011029233 A1 WO2011029233 A1 WO 2011029233A1 CN 2009073874 W CN2009073874 W CN 2009073874W WO 2011029233 A1 WO2011029233 A1 WO 2011029233A1
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WIPO (PCT)
Prior art keywords
tooth
teeth
small
core
permanent magnet
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PCT/CN2009/073874
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English (en)
Chinese (zh)
Inventor
漆亚梅
李铁才
汤平华
杨贵杰
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深圳航天科技创新研究院
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Priority to PCT/CN2009/073874 priority Critical patent/WO2011029233A1/fr
Priority to CN2009801046279A priority patent/CN102124630B/zh
Publication of WO2011029233A1 publication Critical patent/WO2011029233A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention relates to a large-diameter permanent magnet motor, and more particularly to a large-diameter square wave brushless permanent magnet DC motor and an assembly method therefor.
  • a motor can be used as a torque motor and also as a wind power generator.
  • the permanent magnet motor can be divided into two major categories: sine wave and square wave according to the driving current and back electromotive waveform.
  • a sine wave permanent magnet motor is called a permanent magnet homogen motor (PMSM), or a sine wave AC servo motor.
  • PMSM permanent magnet homogen motor
  • BLDCM square wave brushless DC motor
  • Permanent magnet motors are reversible and can be used both as electric motors and as generators.
  • the square wave permanent magnet generator has a larger output than the sine wave permanent magnet generator by ⁇ /2 , which is 1.57 times.
  • square wave permanent magnet motors have been widely used.
  • the external characteristics of square wave permanent magnet motors are basically the same as those of brushed DC motors.
  • the control is relatively simple, but its biggest disadvantage is the existence of large principle commutation torque fluctuations.
  • the researchers proposed a variety of compensation measures, but the actual application results are not satisfactory.
  • the ideal motor should have the characteristics of small volume, large torque, small torque fluctuation, high efficiency and low cost. However, in the real world, it is often only possible to balance this concept.
  • the priority is motion control performance, power, size, efficiency, and price.
  • the servo motor must overcome the cogging effect and have small positioning torque, torque fluctuation or speed fluctuation, which can drive continuously and stably under low speed and large torque. There are many reasons for the torque fluctuations that occur. It is generally believed that the main causes are: the positioning torque generated by the cogging, the non-sinusoidal distribution of the air gap magnetic field and the non-sinusoidal current of the three-phase current.
  • the cogging effect directly generates the positioning torque fluctuations related to the number of teeth and slots; the non-sinusoidal distribution of the air gap magnetic field generates the harmonic potential of the back EMF (MMF) harmonics and current harmonics; therefore, the torque fluctuation of the servo motor is caused by:
  • MMF back EMF
  • Each positioning torque and harmonic torque are composed.
  • the main harmonic order is related to the number of teeth, the number of slots, the number of poles and their multiplication, the multiplier, and the number of beats.
  • the large pole motor involved in the invention is also called a concentrated winding motor, which has the characteristics of small winding end, small copper consumption, simple structure and low production cost, and has developed rapidly in the past ten years.
  • Figure 1 shows an 8-pole, 9-slot, large-pole, three-phase permanent magnet brushless motor.
  • the uppermost N pole is facing one tooth, the left side is the A+ winding, and the right side is the A-winding.
  • the electrical distance of the slot is:
  • the 3 sin pitch factor is:
  • C is the minimum common divisor of the number of poles and slots.
  • the above methods have their advantages and disadvantages, such as: adding air gap, reducing magnetic load, using ironless permanent magnet motor and non-cogging permanent magnet motor, resulting in a decrease in electromagnetic load and power density of the motor, and causing the air gap magnetic field to be sinusoidal
  • Adopting a stator chute or a permanent magnet rotor or a stator using a fractional tank method per phase per phase which increases the production cost, reduces the material utilization rate, and causes the air gap magnetic field to be sinusoidal.
  • Reducing the stator slots increases the leakage flux and causes the losses to increase.
  • Permanent magnet surface chamfering, sinusoidal, uneven air gap, permanent magnet Short-range and the like cause the air gap magnetic field to be sinusoidal.
  • the purpose of the unequal distribution of the slots of the stator is also to make the air gap magnetic field sinusoidal.
  • the above method is a traditional effective method for sine wave servo motors. However, the traditional methods are not applicable to square wave servo motors.
  • a low-fluctuation permanent magnet brushless motor having an unequal width structure wherein the tooth width of the stator teeth is larger or smaller than the tooth width of the adjacent teeth or the groove width of the stator slot is larger than Or less than the groove width of the adjacent groove; or the magnetic pole width of the rotor core is greater or smaller than the width of the adjacent magnetic pole or the spacing between the magnetic poles of the rotor core is greater or smaller than the spacing between adjacent magnetic poles.
  • the use of different size teeth (unequal width teeth) stator core design may affect the number and magnitude of positioning torque. Improper design will result in greater positioning torque.
  • the utility model patent also adds a rotor core magnetic pole unequal width method at the expense of generating a motor back EMF asymmetry.
  • the utility model patent also adds a method of eccentricity of the inner surface of the stator core, which is also costly to produce a motor back electromotive force.
  • the motor back EMF asymmetry is a fatal flaw for servo motors.
  • the target of this utility model patent is a low-power variable speed drive motor with low performance. Summary of the invention
  • the invention solves the problems existing in the existing square wave permanent magnet motor and the sine wave permanent magnet motor, and proposes a new principle, a new structure, a high performance and a low cost large square wave permanent magnet motor.
  • the technical proposal of the present invention is to provide a large-diameter square wave brushless permanent magnet DC motor, wherein the rotor core of the motor is provided with a plurality of pairs of permanent magnets, and the slots of the stator are equipped with three-phase windings, wherein the stator core There is a correspondence between the number of slots Z on the upper surface and the number of magnetic poles 2P on the rotor core, corresponding to the Z stator slots, corresponding to Z teeth, including Z/2 large teeth, Z/2 Small teeth:
  • the arrangement order of the concentrated windings and teeth is: A-phase concentrated winding on the large teeth - small teeth, a large tooth, a B-phase concentrated winding, a small tooth, a large tooth, a C-phase concentrated winding, a small tooth And the like, wherein the stator core includes a large tooth core and Z/2 independent small tooth cores, and a yoke groove is provided between each adjacent two large teeth. Z/2 intrusion grooves, each of which is inserted into one of the indentation grooves of the large tooth core through its tail, thereby forming Z/2 small teeth.
  • the slot width of the slot between adjacent large and small teeth on the stator core is wide The degree is 0.1 ⁇ 3.0mm; each large tooth occupies a circumferential electrical angle of 150° ⁇ 234°, and each small tooth plus the slot on both sides occupies a circumferential electrical angle of 90° ⁇ 6°, and one large tooth and one small tooth The sum of the electrical angles is equal to 240°.
  • a more preferable solution is that each of the large teeth occupies a circumferential electrical angle of 195° to 205°, and each of the small teeth plus the slots on both sides thereof occupy a circumferential electrical angle of 45° to 35°.
  • a slot width of a slot between adjacent large teeth and small teeth on the stator core is 0.1 to 3.0 mm ; when Z/2 is an even number, the large teeth are in Z /4 are the first large teeth with a circumferential electrical angle of 224 ° ⁇ 2 °, and the other Z/4 are the second largest teeth with a circumferential electrical angle of 192 ° ⁇ 2 °; each small tooth plus its two sides groove
  • the mouth occupies a circumferential electrical angle of 32° ⁇ 2°; the order of arrangement between the teeth is: a first large tooth, a small tooth, a second large tooth, a small tooth, and so on; and a group of first large teeth
  • the sum of the small electric teeth, the second large teeth and the small teeth occupying the circumferential electrical angle is 480 °.
  • the large tooth core may be an integral integral large tooth core; or may be composed of Z/2 single large tooth cores of the same structure, between two adjacent large teeth cores The two large teeth of the stator slot center line are spliced to each other.
  • the permanent magnets N and S of the rotor core are arranged in phase, and the permanent magnet is a radially magnetized tile-shaped magnetic steel or a parallel magnetized tile-shaped magnetic steel.
  • the magnetic steel is an equal radius tile-shaped magnetic steel or a chamfered tile-shaped magnetic steel;
  • the physical air gap between the stator and the rotor is 1 to 4 mm;
  • the pole pitch of the permanent magnet on the rotor core is (1 to 0.8) ⁇ ⁇ /4, where D is the outer diameter of the rotor; and further includes a rotor position sensor made of a Hall position sensor, the magnetic sensitive direction of the Hall position sensor is consistent with the normal direction of the rotor, and is mounted on the stator bracket Above, and maintain an air gap of 1 ⁇ 3mm between the rotor and the permanent magnet outer circle.
  • Z/6 concentrated windings belonging to the same phase may be sequentially connected in series in a circumferential order and then led out to form a group of A-A', B-B', C-C' three-phase windings.
  • Z/6 concentrated windings belonging to the same phase can be connected in parallel to Z/12 parallel units, and then connected in series to form a group of A-A's.
  • B-B', C-C' three-phase winding Z/6 central windings belonging to the same phase can also be separately led out to form Z/6 group A-A', B-B', C-C' three-phase windings.
  • the present invention also provides an assembly method for the foregoing motor, wherein when the large tooth core is an integral integral large tooth core, after the large tooth core is made, the large teeth are insulated first. Processing, and then winding the concentrated winding on the Z/2 large teeth by the winding machine, and then embedding the Z/2 small tooth cores respectively The Z/2 intrusion grooves of the large tooth core constitute a stator core having Z/6 concentrated windings per phase.
  • the present invention also provides another assembly method for the foregoing motor, wherein when the large tooth core is composed of Z/2 single large tooth cores, the individual large tooth cores are separately insulated first.
  • the winding machine is used to wind the concentrated windings on the individual large tooth cores, and then the Z/2 single large tooth cores and the three small tooth cores are pressed into the A phase single large tooth iron.
  • the small teeth in the present invention are embedded structures, and the small teeth are not installed first, leaving a space for the winding of the concentrated windings to be very convenient, and the automatic winding of the machine can ensure a tank full rate of more than 85%.
  • a motor its output is 33% larger than that of a conventional sine wave permanent magnet servo motor, and the winding end is more than three times smaller than a conventional sine wave permanent magnet servo motor, so the copper consumption is greatly reduced.
  • the motor is driven by three-phase square wave current, it can produce a stable torque, and its torque fluctuation index is equivalent to that of a sine wave permanent magnet servo motor.
  • FIG. 1 is a schematic view showing the structure of a stator and a rotor of an 8-pole 9-slot motor in the prior art
  • FIG. 2A is a schematic view showing the structure of the stator and the rotor of the motor in a preferred embodiment of the present invention
  • FIG. 2B is another embodiment of the present invention. Schematic diagram of the stator and rotor deployment structure of the first and second large teeth motors;
  • FIG. 3 is a schematic view showing the structure of a motor assembly in a preferred embodiment of the present invention.
  • FIG. 4A is a schematic view showing the angular distribution of the stator teeth and the grooves in the embodiment shown in FIG. 2A;
  • 4B is a schematic view showing the angular distribution of the stator teeth and the grooves in the embodiment shown in FIG. 2B;
  • Figure 5A is a schematic view showing the structure of the integrated integral large tooth core
  • Figure 5B is a schematic structural view of a small tooth core
  • FIG. 5C is a schematic view showing a cooperative structure of a unitary integral large tooth core and a plurality of small tooth cores
  • FIG. 6 is a schematic structural view of a block type stator core according to another embodiment
  • FIG. 7 is a schematic diagram of a plurality of concentrated windings connected in parallel in parallel and sequentially in series in one embodiment of the present invention. detailed description
  • the main components of the motor include a rotating shaft 30, a rotor 1, a stator 2, etc., and a physical air gap 5 between the rotor 1 and the stator 2 is 1 to 4 mm.
  • the Hall position sensor is used as the rotor position sensor, and the magnetic sensitive direction of the Hall position sensor is consistent with the normal direction of the rotor, and is mounted on the stator bracket 20 and maintained with the outer circumference of the rotor magnet (ie, the permanent magnet). ⁇ 3mm air gap.
  • the number of slots Z on the stator core and the number of poles 2P on the rotor core have a correspondence relationship as shown in the following table, wherein when the number of slots is 186, the number of magnetic poles is 124; when the number of slots is 216 , the number of poles is 144; when the number of slots is 228, the number of poles is 152; corresponding to Z stator slots, there are corresponding Z teeth, including Z/2 large teeth, Z/2 small teeth:
  • the expanded structure shown in Fig. 2 is drawn here, which is equivalent to the ring structure.
  • the inner ring of the stator 2 and the outer ring of the rotor 1 are respectively unfolded.
  • 72 pairs of 144 permanent magnets that is, 144 magnetic poles, are arranged on the rotor core, and they are arranged in the N and S phases shown in Fig. 2 to generate an air gap magnetic field.
  • the permanent magnet may be a radially magnetized tile-shaped magnetic steel or a parallel magnetized tile-shaped magnetic steel.
  • the pole pitch of the permanent magnet on the rotor core is (1 to 0.8; > ⁇ ⁇ ⁇ / 4, where D is the outer diameter of the rotor.
  • the gap is 0. 1 ⁇ 3mm;
  • 216 teeth include 108 large teeth and 108 small teeth, and are arranged in the order of large teeth ⁇ small teeth ⁇ large teeth and small teeth in the circumference.
  • the arrangement order of the teeth is: Large-toothed A-phase concentrated winding, small teeth, one large tooth, B-phase concentrated winding, one small tooth, one large tooth, C
  • each large tooth occupies a circumferential electrical angle of 150° to 234°
  • each small tooth plus its two sides of the slot occupies a circumferential electrical angle of 90° to 6°
  • one large tooth and one small tooth The sum of the electrical angles is equal to 240°.
  • each large tooth preferably occupies a circumferential electrical angle of 195° to 205°
  • each of the small teeth plus the notches on both sides preferably occupy a circumferential electrical angle of 45° to 35°.
  • Z/4 of the large teeth are the first large teeth occupying a circumferential electrical angle of 224° ⁇ 2 °, and the other Z/4 are The second largest tooth occupying a circumferential electrical angle of 192 ° ⁇ 2 °; each small tooth plus its two sides of the slot occupy a circumferential electrical angle of 32 ° ⁇ 2 ° ; the order between the teeth is: the first large tooth is small a second large tooth, a small tooth, a first large tooth, a small tooth, a second large tooth, a small tooth, and the like; and an adjacent group of the first large tooth, the small tooth, the second large tooth, and the small tooth
  • the sum of the circumferential electrical angles is 480 °.
  • the stator core includes an integral integral large tooth core 9 and 108 small tooth cores 8; and 108 large teeth 6 are arranged on the large tooth core.
  • the yoke portion between the adjacent two large teeth is respectively provided with a plunging groove 11 having a total of 108 squeezing grooves; each of the small tooth cores 8 is inserted into one of the large tooth cores 9 through its tail ⁇ Into slot 1 1.
  • the large tooth core 9 is composed of a plurality of large-tooth silicon steel sheets, and the yoke portion and the tooth portion of each of the large-tooth silicon steel sheets are provided with positioning blind holes 12 through which the multi-layer large-tooth silicon steel sheets are riveted.
  • each of the small tooth cores 8 is composed of a plurality of small-tooth silicon steel sheets; each of the small-tooth silicon steel sheets 10 is also provided with a positioning blind hole 12 through which the multi-layer small-tooth silicon steel sheets are riveted into a unitary structure.
  • the large-toothed iron core 9 and the respective small-toothed iron cores 8 have the same number of layers of silicon steel sheets.
  • the intrusion groove 11 is a dovetail structure having a large inner portion and a small mouth portion; accordingly, the tail portion of each of the small tooth cores 8 in Fig. 5B is also a dovetail structure, which can be exactly the same as Engage in slot 11 to engage.
  • the large teeth are insulated, and then the winding machine is used to wind the concentrated winding on 108 large teeth, and then 108 small-toothed iron cores are respectively embedded in the 108 intrusion grooves of the large-toothed iron core, that is, the stator cores having 36 concentrated windings per phase are formed.
  • the integral large tooth core 9 having 108 large teeth is centered on the stator groove between two adjacent large teeth (ie, each intrusion groove) The center line is divided into 108 parts for the reference and becomes 108 single large tooth cores.
  • the 108 single large tooth cores are insulated separately, and then the windings are wound on 108 single large tooth cores, and then 108 concentrated windings are wound.
  • Large tooth core and 108 small tooth cores according to phase A single large tooth core, small tooth core ⁇ B phase single large tooth core, small tooth core, C phase, single tooth core The order of the small tooth cores is assembled in sequence to form a stator core having 108 concentrated windings.
  • 108 single large tooth cores have the same structure, which is convenient for processing and production. Then, 108 single large tooth cores can be buckled into a complete large tooth core by setting bosses and recessed holes.
  • the snap structure shown in FIG. 6 of the patent No. CN101371425A is used.
  • 36 concentrated windings belonging to the same phase can be connected in series in a circumferential sequence and then lead out to form a group of A-A', B-B', C-C' three-phase windings.
  • 36 concentrated windings belonging to the same phase can be separately led out to form 36 sets of A-A', B-B', C-C' three-phase windings.
  • a plurality of concentrated windings belonging to the same phase may be connected in parallel to two or two parallel units to form Z/12 parallel units, and then sequentially connected in series to form a group of A-A', B-B', C. -C' three-phase winding.
  • the first and second large teeth are included, two first large tooth concentrated windings are connected in parallel, or two second large tooth concentrated windings are connected in parallel, thereby ensuring two parallel connections.
  • the concentrated potentials of the concentrated windings are the same.
  • the sum of the electrical angles of a large tooth and a small tooth is equal to 240°, and the magnetic pole covering technique in the range of the electrical angle of 150° to 234° is used to make the air gap magnetic field have a flat top area of 120° or more;
  • the non-uniform cogging and the magnetic balance small teeth are adopted, and the small tooth electric angle of 90° ⁇ 6° minimizes the positioning torque.
  • the controller of the motor of the invention can adopt the new concept of square wave brushless motor continuous current sampling and closed loop control, and its comprehensive performance exceeds the sine wave AC servo system.
  • the square wave brushless permanent magnet DC motor can replace the existing sine wave AC servo motor and its servo unit, and become the main branch of the future servo motor and its servo unit.
  • the motor of the invention can be used as a generator, has the advantages of small internal resistance and high voltage regulation rate.
  • the invention develops an asymmetric slot large pole motor based on the large pole motor.
  • the asymmetric winding large pole motor has a concentrated winding coefficient of 1, and the pole/slot ratio is 2/3.
  • the asymmetric slot large pole motor has a large winding coefficient, a small number of concentrated windings, a large reduction in copper consumption, a significant improvement in the armature reaction of the motor, and a greatly simplified motor manufacturing process.
  • the large pole motor of the invention can be applied to industrial fields and civil fields, and mainly includes:
  • High-efficiency, high-precision equipment for heavy-duty CNC machine tools such as five-axis linkage super heavy-duty CNC boring and milling machine, five-axis linkage super heavy-duty propeller blade machining machine), wind power, metallurgy, automotive, etc.;
  • Light alloy materials (aluminum, magnesium) Forming and processing equipment, stamping automatic line, precision casting automatic line, robot armored automation equipment, robotic spray equipment, assembly automation equipment;
  • high-precision, high-speed, complete manufacturing equipment required for electronic and communication equipment manufacturing including Special equipment for machine dressing (automatic placement machine, high-precision large-size automatic printing machine, high-speed component insertion equipment, high-speed drilling equipment for circuit boards), special production equipment (lithography machine, metal organic chemical parts extension, lake product, Etching systems), as well as other generalized numerical control machines, such as textile machinery, printing machinery, packaging machinery, medical equipment;
  • Industrial robots and robots such as splicing robots, dispensing robots, handling robots, pick-and-place robots, plug-in robots, packaging robots, chemical bioanalytical robots, medical instrument robots, motion simulation platforms, etc.;

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

La présente invention concerne un moteur triphasé de type grand diamètre, à courant continu, sans balai et à aimant permanent, ainsi qu'un procédé d'assemblage associé. Le nombre de pôles magnétiques sur un noyau de rotor est 2P. Le nombre de fentes dans un noyau de stator est Z. Les Z dents sur le noyau de stator sont composées de Z/2 grandes dents (6) et de Z/2 petites dents. Une fente d'insertion (11) est pourvue sur chaque culasse entre deux grandes dents adjacentes (6). Chaque petite dent est formée en insérant une partie d'extrémité de chaque noyau de petite dent (8) dans l'une des fentes d'insertion (11). Chaque grande dent (6) occupe un angle circonférentiel électrique se situant entre 150 ° et 234 °. Chaque petite dent avec les entailles sur ses deux côtés occupe un angle circonférentiel électrique se situant entre 90 ° et 6 °. La somme des angles électriques d'une grande dent (6) et d'une petite dent est de 240 °. Des enroulements triphasés sont bobinés sur Z/2 grandes dents (6) séparément, Z/6 enroulements concentrés étant agencés à chaque phase. Durant l'assemblage, les enroulements sont d'abord bobinés sur les grandes dents (6) séparément, puis les petites dents sont incorporées. Il est pratique de bobiner les enroulements dans le moteur. Le moteur peut être utilisé comme moteur couple ou comme générateur éolien.
PCT/CN2009/073874 2009-09-11 2009-09-11 Moteur triphasé de type grand diamètre, à courant continu, sans balai et à aimant permanent, et procédé d'assemblage associé WO2011029233A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2009/073874 WO2011029233A1 (fr) 2009-09-11 2009-09-11 Moteur triphasé de type grand diamètre, à courant continu, sans balai et à aimant permanent, et procédé d'assemblage associé
CN2009801046279A CN102124630B (zh) 2009-09-11 2009-09-11 大直径型方波无刷永磁直流电机及其装配方法

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Application Number Priority Date Filing Date Title
PCT/CN2009/073874 WO2011029233A1 (fr) 2009-09-11 2009-09-11 Moteur triphasé de type grand diamètre, à courant continu, sans balai et à aimant permanent, et procédé d'assemblage associé

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62138051A (ja) * 1985-12-11 1987-06-20 Hitachi Ltd 永久磁石回転電機
JPH0378458A (ja) * 1989-08-18 1991-04-03 Ricoh Co Ltd 電動機
JPH11234990A (ja) * 1998-02-12 1999-08-27 Okuma Corp 永久磁石モータ
US20040155537A1 (en) * 2001-12-20 2004-08-12 Masatsugu Nakano Permanent magnet type dynamo-electric machine and permanent magnet synchronous generator for wind power generation
CN101030721A (zh) * 2006-03-03 2007-09-05 苏州扬名机电有限公司 无刷直流电机槽数与磁钢数的组合方案
CN201118414Y (zh) * 2007-10-29 2008-09-17 深圳航天科技创新研究院 方波三相无刷永磁直流电动机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201656582U (zh) * 2009-09-11 2010-11-24 深圳航天科技创新研究院 大直径型方波无刷永磁直流电机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62138051A (ja) * 1985-12-11 1987-06-20 Hitachi Ltd 永久磁石回転電機
JPH0378458A (ja) * 1989-08-18 1991-04-03 Ricoh Co Ltd 電動機
JPH11234990A (ja) * 1998-02-12 1999-08-27 Okuma Corp 永久磁石モータ
US20040155537A1 (en) * 2001-12-20 2004-08-12 Masatsugu Nakano Permanent magnet type dynamo-electric machine and permanent magnet synchronous generator for wind power generation
CN101030721A (zh) * 2006-03-03 2007-09-05 苏州扬名机电有限公司 无刷直流电机槽数与磁钢数的组合方案
CN201118414Y (zh) * 2007-10-29 2008-09-17 深圳航天科技创新研究院 方波三相无刷永磁直流电动机

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