WO2008055410A1 - Moteur à aimant permanent et procédé d'entraînement correspondant - Google Patents

Moteur à aimant permanent et procédé d'entraînement correspondant Download PDF

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Publication number
WO2008055410A1
WO2008055410A1 PCT/CN2007/003085 CN2007003085W WO2008055410A1 WO 2008055410 A1 WO2008055410 A1 WO 2008055410A1 CN 2007003085 W CN2007003085 W CN 2007003085W WO 2008055410 A1 WO2008055410 A1 WO 2008055410A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
stator
permanent magnet
salient poles
salient
Prior art date
Application number
PCT/CN2007/003085
Other languages
English (en)
Chinese (zh)
Inventor
Tianfa Song
Shizheng He
Manyau Cheung
Original Assignee
Tianfa Song
Shizheng He
Manyau Cheung
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianfa Song, Shizheng He, Manyau Cheung filed Critical Tianfa Song
Publication of WO2008055410A1 publication Critical patent/WO2008055410A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos

Definitions

  • the invention belongs to the technical field of motors, in particular to permanent magnet motors.
  • the present invention has a problem that the starting current is about 5-6 times the rated current, and the starting torque is only 0.80. 2 times or so, so it consumes a lot of energy, and it has the disadvantages of large volume, large amount of consumables, and complicated structure.
  • the technical problem to be solved by the present invention is to provide a driving method and device for a permanent magnet type motor rotor.
  • the permanent magnet motor designed by the method has the advantages of easy starting, small starting current, strong overload capability, energy saving, simple structure and small volume. Light weight and long service life.
  • the driving method of the permanent magnet motor rotor of the present invention is (see the embodiment diagram): a stator (4) and a rotor (5) are provided, and a permanent magnet (6) is arranged on the rotor, and the stator is made of a magnetic conductive material.
  • stator salient poles (4a), (4b) constituting each stator salient pole pair are along the rotor
  • the circumferential direction of the operation is offset by an angle such that the central axis of the rotor permanent magnet balanced between the two is offset from the central axis of the stator salient pole
  • the stator salient pole is provided with a winding (13) electrically connected to the controller, and each time the rotor permanent magnet and the stator salient pole are attracted to each other to an equilibrium position between the salient poles of the corresponding stator salient poles at a circumferentially offset angle
  • the permanent magnet motor structure adopting the method of the invention is (see the embodiment diagram): a casing (8) is provided, and a rotor (5) mounted on the main shaft (1) and a stator fixed relative to the casing are arranged in the casing.
  • the rotor (5) is a permanent magnet (6) having an axial polarity of not less than a pair embedded in the circumferential direction of the disk of the non-magnetic material, The S poles of two adjacent permanent magnets are arranged opposite to each other.
  • the stator (4) is made of a magnetically permeable material and is provided with two sets of salient poles (4a, 4b) of the same number.
  • the two sets of salient poles are respectively arranged at On both sides of the rotor (5) disk body, the corresponding salient poles of the two sets of salient poles form a salient pole pair, and the two salient poles of each salient pole pair are offset in the circumferential direction so as to enter between the salient poles and the two convex
  • the central axis of the permanent magnet in which the pole coupling is in equilibrium is offset from the central axis of the stator salient pole.
  • the stator salient pole is provided with a winding (13) electrically connected to the controller, and the controller is electrically connected with a sensor capable of sensing the rotation angle of the rotor.
  • the working principle of the device of the invention is: in static state, the permanent magnet mounted on the rotor and the stator made of the magnetic conductive material attract each other, and are transferred between the salient poles (4a, 4b) of the pair of stator salient poles, and the axial direction is forever
  • the N and S poles of the magnet are respectively in equilibrium with the two salient poles on both sides of the rotor disc body.
  • the electromagnetic field force causes the permanent magnet to rotate out of the equilibrium position, and at the same time, the stator salient winding attracts the next-order permanent magnet of opposite polarity to the salient pole pair, and then energizes through the stator winding.
  • the permanent magnet tangential force is turned out of the equilibrium position to complete the continuous rotation of the rotor.
  • the invention can make the permanent magnet always at a position offset from the central axis of the salient pole of the stator when the stator winding is energized, thereby ensuring a circumferential torque between the salient pole of the stator and the rotor, and rotating the rotor, which is easy to start.
  • the starting current is small, because the rotor of the present invention does not have a winding, so there is no armature reaction, and the operating current is reduced.
  • the starting current of the present invention can be the operating current after the load.
  • stator salient pole of the device of the invention is arranged on both sides of the rotor axial direction, and the radius is reduced, and has the advantages of simple structure, small volume, light weight and long service life.
  • Figure 1 is a schematic structural view of an embodiment of the apparatus of the present invention
  • Figure 3 shows the relative position of the H-direction relatives of the stator salient poles 4a, 4b coupled to the two sides of the permanent magnet 6 on the rotor
  • FIG. 1 is a schematic view showing the working process of the rotor permanent magnet 6 and the stator salient poles 4a, 4b (this figure shows that the actual positions of the permanent magnet 6 and the stator salient pole 4 are rotated 90 degrees toward the center of the circle to visually indicate The relative angle between them during the work process)
  • 1 Spindle 2-end plate 3 - Adjusting plate 4 - Stator 4a, 4b - Stator salient pole 5 - Rotor 6 - Permanent magnet 7 - Positioning sleeve 8 - Case 9 - Adjusting rod 10 - Sensor 11 - Fan 12 - Dustproof Cover 13-winding specific implementation:
  • the structure of the permanent magnet motor adopting the method of the invention is as follows: Referring to Fig. 1, the two ends of the casing 8 are provided with end plates 2 through screws, and the main shaft 1 is connected to the end plates 2 at both ends of the casing 8 through bearings. Two sets of rotors 5 and 4 having the same structure are respectively mounted on both sides of the main shaft 1 and separated by a positioning sleeve 7.
  • each set of rotor and stator is:
  • the rotor 5 fixed on the main shaft 1 through the key groove is a disc body, and is formed by potting with a reinforced fiber resin.
  • the permanent magnet 6 is uniformly circumferentially embedded in the rotor circle.
  • the permanent magnet N and S pole directions are parallel to the main axis direction, and the adjacent permanent magnets have opposite polarities
  • the stator 4 is a salient pole structure formed by double-sided insulated cold-rolled silicon steel sheets.
  • a winding 13 is wound around the salient pole, and the stator salient poles are divided into two groups 4a, 4b of the same number, which are respectively fixed on the two sides of the disc rotor 5 by screws, and are fixed opposite to the casing 8, and are opposed to each other.
  • the windings of the two sets of salient poles are respectively connected in series or in parallel.
  • the rotor 5 is uniformly provided with six permanent magnets in the circumferential direction, and each set of stators on both sides of the rotor has three salient poles separated by 120 degrees, and the windings 13 of each set of three salient poles are connected in series or in parallel, each pair The two corresponding stator salient poles located on both sides of the rotor disc are offset by 20 degrees in the circumferential direction (see Fig.
  • the salient poles 4a, 4b are respectively coupled to the two poles of the permanent magnet 6 turned therebetween, and the permanent magnets can be balanced between the salient poles of the two stators 4a, 4b under the magnetic attraction of the salient poles.
  • a total of four adjusting discs 3 are respectively connected with the casing 8 through screws, and an angle adjusting rod 9 is connected between the adjusting discs 3 at both ends, and the stator fixed thereto can be synchronously adjusted by adjusting the angles of the adjusting discs at both ends.
  • the angle of the circumferential displacement of the corresponding stator salient poles on both sides of the rotor disk body of the present invention cannot be too large on the one hand, so as to satisfy the magnetic field force balance between the permanent magnets 6 located between the salient poles and the two salient poles. Between the two salient poles, on the other hand, it should not be too small, so that the central axis of the permanent magnet balanced therebetween is offset from the central axis of the salient poles by a certain distance, and a circumferential torque can be generated.
  • the angle of the stator salient poles on both sides of the rotor is preferably 18°-25°.
  • the end plate of the casing 8 is provided with a sensor 10 for sensing the rotation angle of the rotor 5.
  • the sensing signal output end is connected to the CPU controller, and the stator winding 13 is connected to the power supply through the CPU controller to extend the main shaft of the end plate 2
  • a fan 11 is mounted on the fan 11, and a dust cover 12 fixed to the end plate is disposed outside the fan 11.
  • the installation procedure of the permanent magnet motor is as follows: First, the stator salient pole is mounted on the adjusting plate 3, and then the inner two adjusting discs and the positioning sleeve screws are fixed in the middle of the axial direction of the casing, and then the main shaft rotor and the outer side are installed. Two adjusting plates, and the main shaft is fixed on the two end plates through the bearing seat, and an angle adjusting rod 9 is connected between the outer two adjusting plates, which can be used to synchronously adjust the convex poles on the outer two adjusting plates and the inner two adjusting plates.
  • the salient poles are offset at an angle in the circumferential direction, and the angled adjustment plate is fixed relative to the casing by screws.
  • FIG. 4 a schematic diagram of the working process of the permanent magnet 6 of the permanent magnet motor and the salient pole of the stator is shown.
  • the figure is to rotate the position of the actual rotor and the stator to the axial direction by 90 degrees, so as to more intuitively indicate the relative relationship between them.
  • Angle the stator salient pole 4a of the outer ring represents a salient pole located outside the rotor disc, and the stator salient pole 4b of the inner ring represents a salient pole located inside the rotor disc, and the salient poles 4a, 4b on both sides of the rotor are circumferentially staggered.
  • the rotor permanent magnets 61, 63, 65 and made of magnetically permeable materials
  • the pair of corresponding salient poles of the stator attract each other to generate a torque, and move to between the salient poles 4a, 4b of the salient poles at a circumferentially offset angle (as shown in FIG. 4-1), the two poles of the permanent magnet and the salient poles respectively Mutual attraction, in equilibrium, at this time, a forward pulse current is applied to the outer three stator windings 4a to form an N pole, and a leftward tangential force pulse is generated by attracting the outer S poles of the permanent magnets 61, 63, 65.
  • the power-on moment is controlled by the CPU controller, and the controller obtains the signal of the rotor rotation angle through the sensor. Whenever the rotor is turned to the set angle (between the pair of staggered stator salient poles), the controller controls the set inner or outer winding. Power on, to achieve the function of the rotor. If the rotor can be turned to the left according to the above-mentioned energization direction, the direction of the energization can be changed to turn the rotor to the right, which can be controlled by the CPU controller.
  • the rotor rotates once every 6 steps, and the inner and outer windings of each turn are energized 3 times, each step is rotated 60 degrees, and the work is performed by the permanent magnet suction for about 30 degrees, and the energized electromagnetic field is about 30 degrees, and the starting current is small. Therefore, the energy saving effect is remarkable, and the two rotors of the machine are driven by four sets of windings, and the controller can arbitrarily select one or more windings according to the magnitude of the load, for example, when the load is heavy, the controller controls the four windings. Power-on to achieve full-load driving.
  • some or all of the windings can be controlled to become power generating windings to charge the storage battery, achieving energy complementation under light and heavy load conditions.
  • Energy avoiding the waste of electric energy at light load like other motors, and further achieving the goal of high efficiency and energy saving.
  • the energy saving effect of the present example is good, and the utility model has the advantages of small volume, light weight, simple structure, high work efficiency and large starting torque.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

La présente invention concerne un moteur à aimant permanent et son procédé d'entraînement. Ce moteur comporte un rotor (5) et des stators (4) fixés à une coque. Le rotor n'est rien moins qu'une paire d'aimants axiaux polaires (6) insérés sur une plaque, les polarités de deux aimants consécutifs étant opposées. Le stator qui est fait en matériaux conduisant le magnétisme, comprend deux ensembles d'un même nombre de pôles saillants (4a, 4b) de chaque côté de la plaque de rotor. Les pôles saillants correspondants de deux ensembles de pôles saillants sont décalés dans le sens de la circonférence. Les enroulements (13), qui sont électriquement connectés à un contrôleur, sont disposés sur les pôles saillants du stator. Le contrôleur est électriquement connecté à un capteur (10) permettant de connaître l'angle de rotation du rotor.
PCT/CN2007/003085 2006-11-06 2007-10-30 Moteur à aimant permanent et procédé d'entraînement correspondant WO2008055410A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610138228.2 2006-11-06
CNB2006101382282A CN100433533C (zh) 2006-11-06 2006-11-06 永磁式电机转子

Publications (1)

Publication Number Publication Date
WO2008055410A1 true WO2008055410A1 (fr) 2008-05-15

Family

ID=38045205

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003085 WO2008055410A1 (fr) 2006-11-06 2007-10-30 Moteur à aimant permanent et procédé d'entraînement correspondant

Country Status (2)

Country Link
CN (1) CN100433533C (fr)
WO (1) WO2008055410A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107171525A (zh) * 2017-06-21 2017-09-15 江苏雅迪科技发展有限公司宁波分公司 永磁同步轮毂电机及电动车
EP3189584B1 (fr) * 2014-09-02 2019-11-06 Cicilia, Beremundo Elsio Générateur ou moteur synchrone pourvu de divers rotors et/ou stators

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100433533C (zh) * 2006-11-06 2008-11-12 何世政 永磁式电机转子
CN102227092A (zh) * 2011-06-20 2011-10-26 张文祐 一种永磁式电机
CN102684429A (zh) * 2012-05-18 2012-09-19 山耐斯气动液压(磐安)有限公司 一种双功率盘式开关磁阻电机
CN105915151B (zh) * 2016-06-10 2019-07-09 深圳华引动力科技有限公司 一种周向轴向混合布相开关磁阻电机控制方法
CN106533010A (zh) * 2016-12-23 2017-03-22 桂林电器科学研究院有限公司 一种盘式永磁无刷直流电动机的转子结构
CN110098705A (zh) * 2019-05-07 2019-08-06 冯树乡 一种平面感应同轴多励磁组多定子组发电机
CN112049807B (zh) * 2020-09-04 2024-06-07 苏州市德爱动力科技有限公司 一种永磁同步双层共轴工业风扇

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JPH07336967A (ja) * 1994-06-03 1995-12-22 Yaskawa Electric Corp 軸方向空隙形同期モータ
CN2342511Y (zh) * 1998-08-21 1999-10-06 王誉燕 双面绕组无铁芯无刷轴向磁场永磁直流电动机
CN1549432A (zh) * 2002-10-14 2004-11-24 迪尔公司 轴向气隙无刷直流电机
CN1945958A (zh) * 2006-11-06 2007-04-11 何世政 永磁式电机转子的驱动方法及装置

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US5168187A (en) * 1991-02-20 1992-12-01 Dana Corporation, Warner Electric Brake & Clutch Division Axial pole stepping motor
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IL116631A0 (en) * 1995-03-21 1996-03-31 Kenetech Windpower Inc Doubly-salient permanent-magnet machine
AU2430500A (en) * 1999-02-10 2000-08-29 Multipolgenerator Aps An electric multipole motor/generator with axial magnetic flux
CN2364619Y (zh) * 1999-02-26 2000-02-16 王誉燕 双对向轴向磁场永磁无刷直流电动机
CN200994098Y (zh) * 2006-11-13 2007-12-19 何世政 节能永磁式电机

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH07336967A (ja) * 1994-06-03 1995-12-22 Yaskawa Electric Corp 軸方向空隙形同期モータ
CN2342511Y (zh) * 1998-08-21 1999-10-06 王誉燕 双面绕组无铁芯无刷轴向磁场永磁直流电动机
CN1549432A (zh) * 2002-10-14 2004-11-24 迪尔公司 轴向气隙无刷直流电机
CN1945958A (zh) * 2006-11-06 2007-04-11 何世政 永磁式电机转子的驱动方法及装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3189584B1 (fr) * 2014-09-02 2019-11-06 Cicilia, Beremundo Elsio Générateur ou moteur synchrone pourvu de divers rotors et/ou stators
CN107171525A (zh) * 2017-06-21 2017-09-15 江苏雅迪科技发展有限公司宁波分公司 永磁同步轮毂电机及电动车

Also Published As

Publication number Publication date
CN1945958A (zh) 2007-04-11
CN100433533C (zh) 2008-11-12

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