WO2008055416A1 - Moteur rotatif connecté en série, radial - Google Patents

Moteur rotatif connecté en série, radial Download PDF

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Publication number
WO2008055416A1
WO2008055416A1 PCT/CN2007/003150 CN2007003150W WO2008055416A1 WO 2008055416 A1 WO2008055416 A1 WO 2008055416A1 CN 2007003150 W CN2007003150 W CN 2007003150W WO 2008055416 A1 WO2008055416 A1 WO 2008055416A1
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WO
WIPO (PCT)
Prior art keywords
stator
magnetic
rotor
electromagnet
electric machine
Prior art date
Application number
PCT/CN2007/003150
Other languages
English (en)
Chinese (zh)
Inventor
Hsaio-Ting Lu
Wei-Ting Lu
Original Assignee
Union Plastic (Hangzhou) Machinery Co., Ltd
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 Union Plastic (Hangzhou) Machinery Co., Ltd filed Critical Union Plastic (Hangzhou) Machinery Co., Ltd
Publication of WO2008055416A1 publication Critical patent/WO2008055416A1/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
    • H02K1/14—Stator cores with salient poles
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • 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

Definitions

  • the invention relates to a motor, in particular a radial series rotary electric machine.
  • a motor is proposed by Maslov et al. in U.S. Patent No. 6,791,222, which utilizes both ends of an excitation coil to increase the effective air gap surface area between the rotor and the stator, and is arranged by separate pole pairs to handle the magnetic between adjacent coils.
  • the conversion interference effect The stator of the DC motor comprises a plurality of electromagnets which are respectively independently excited, and the axially arranged rotor magnet and the stator pole pair provide a concentrated magnetic flux distribution, so that the magnetic flux can be concentrated on a relatively large surface to promote high The torque.
  • the sensor detects the relative position of the rotor and the stator, and controls the coil current on the electromagnet at a suitable time to cause smooth running of the motor.
  • Maskw et al. modified the structure of the motor to provide an axially-series structure in the axially aligned stator poles and axially aligned rotor magnets to provide a highly concentrated flux distribution.
  • This motor architecture shares a common side wall by axially adjacent rotors, while providing a highly concentrated flux distribution to facilitate the high torque capability of the motor; however, in practical applications, the three-dimensional architecture due to axial series connection The extra width is required, which is not conducive to meeting the flattening requirements of the motor.
  • the torque ripple is increased.
  • the shortcoming to be solved is that while increasing the high efficiency and high output capability of the motor, it is also necessary to take into account the flattening of the motor, as well as to reduce the pulsation of the torque and to obtain a flexible and safe operating characteristic.
  • An object of the present invention is to provide a radial series-connected rotating electrical machine which, in addition to enhancing the high efficiency and high output of the rotating electrical machine, also takes into consideration the flattening of the motor, and the reduction of torque ripple and flexible safety characteristics when the motor is operated.
  • the present invention provides a radial series-connected rotating electrical machine that increases the total active air gap surface area between the stator and the rotor in a radial expansion through a three-dimensional space, and shares one via a radially adjacent rotor.
  • the common side wall further provides concentration of the magnetic flux density distribution to improve the high efficiency and high output of the rotating electrical machine; and the plurality of electromagnet members in the three-dimensional space by the stator wheel ring are each in the circumferential direction of the rotating shaft An angular arrangement to reduce the pulsation of the output torque of the rotating electrical machine.
  • the first embodiment of the present invention specifically proposes a configuration of a radial serially connected rotating electrical machine. It contains: a stator and a rotor.
  • the rotor includes a plurality of wheel rings that are coaxial and radially adjacent to each other; each of the rotor rings has a plurality of magnetic elements including permanent magnets.
  • Each of the magnetic elements on the rotor has two magnetic poles having opposite magnetic field polarities, such that each of the plurality of magnetic elements on each rotor ring is continuously alternately arranged around the circumference of the rotating shaft with a magnetic field polarity NIS, and along the circumference of the rotating shaft
  • the magnetic poles adjacent to each other are separated by a gap.
  • Each of the wheel rings of the rotor has a magnetically conductive U-shaped cross section, and the inner surfaces of the two side walls of the U-shaped cross section of each magnetic element are each provided with a thin and flat bipolar permanent magnet, which is placed
  • the permanent magnet pole surfaces each face one of the radial air gaps; the permanent magnets contained in each of the magnetic elements of the rotor have a single magnetic field polarity on one surface facing the air gap, and the other magnetic component
  • the permanent magnets have opposite surface magnetic field polarities, thus forming a magnetic pole that faces in the radial direction.
  • the radially adjacent rotor wheel rings abut each other to share a common side wall.
  • the foregoing stator includes a plurality of wheel rings coaxially and radially arranged with each other, and each of the wheel rings of the stator each has at least one electromagnet member, and each of the wheel rings respectively corresponds to a rotor wheel ring;
  • Each of the plurality of magnetically isolated electromagnet members of each of the stator rings is coaxially disposed about the axis of rotation, and each of the electromagnet members has a pair of poles connected by a magnetically conductive core portion, and the opposite poles are formed.
  • the respective pole faces are each facing a respective radial air gap, and a coil is formed on the core portion of the electromagnet member, and each coil has its own switch excitation.
  • each electromagnet member of the stator is fixed to the stator by a structure supported by a non-magnetic material, so that each electromagnet member of the stator has no ferromagnetic contact with each other to handle the switching interference effect of the magnetic flux between the adjacent coils. .
  • the stator and the rotor at least part of the stator wheel ring is surrounded by the corresponding rotor wheel ring .
  • the electromagnet members of each of the wheel rings of the stator are respectively disposed between the two magnetic poles of the two permanent magnets of the respective rotor wheel rings, and the rotors are respectively defined on the two sides of each of the rotor wheel rings facing the radial direction. Radial air gap between the stators.
  • the present invention not only increases the effective air gap surface area between the rotor and the stator to produce a larger rotary motor output capability, but also enhances the advantageous effect by flattening the radial connection of the brushless motor.
  • the permanent magnets on both sides of the side walls help the permanent magnets on either side by sharing the common side walls to provide a highly concentrated flux density distribution.
  • the opposite magnetic field polarities are generated on the pole faces of the pair of magnetic poles of the electromagnet members, but when the currents in the coils are excited in opposite directions, the magnetic fields on the pole faces of the paired magnetic poles The polarity is also reversed.
  • the pair of magnetic poles of the respective separately excited stator electromagnet members are separated from the contained rotor magnetic field by two radial air gaps to produce a suitable gravitational or repulsive force with the corresponding permanent magnetic field of the rotor.
  • the coils on each electromagnet member are each determined to be excited according to the relative position between the stator and the rotor, so that the coils on each electromagnet member are independently excited at a suitable time to control the pair of electromagnet members.
  • the magnetic field of the pole faces interacts with the corresponding rotor permanent magnet poles.
  • the excitation switch of the coil can be realized by a mechanical commutator or an electronic switching circuit, and the electronic switching circuit must control the electronic switching circuit corresponding to the response of the sensing signal of the sensor.
  • the high torque capability of the rotating electrical machine is promoted by the radial expansion in the three-dimensional space. Additional advantages of construction are also provided.
  • a radial series-connected rotating electrical machine the plurality of serially connected rotors are in a relative position with each other, and the stator-wheel-shaped rings connected in series with each other are respectively based on the rotating shafts. The circumferential direction is respectively rotated and moved by a suitable corresponding angle to reduce the chopping of the output torque of the rotating electrical machine.
  • the coils on the electromagnet members of each of the stator rings of the stator can respectively detect the relative positions of the respective rotor rings according to the perceptron, and appropriately control the excitation of each coil of the stator, respectively, to interact with the corresponding rotor permanent magnets. Electromagnetic interactions to achieve the desired smooth operation.
  • the third embodiment of the present invention proposes a further modification.
  • each of the gaps of the gaps of the rotor magnetic elements that are adjacent to each other along the circumferential direction of the rotary shaft is appropriately arranged and the stator is adjacent to the circumferential direction of the rotary shaft.
  • Each gap of the gap in which the members are magnetically isolated from each other is obtained in a different size.
  • the sum of the number of electromagnet members contained in the stator ring and the number of magnetic elements contained in the corresponding rotor ring is equal to an odd number.
  • Such an arrangement can more easily achieve a design that reduces torque ripple, and further appropriately matches the size of each gap in which the stator electromagnet member and the rotor magnetic element are adjacent in the circumferential direction along the rotation axis, and the required smooth operation will be More accessible.
  • the sum of the number of electromagnet members contained in the stator ring and the number of magnetic elements contained in the corresponding rotor ring is equal to an odd integer. Times.
  • the number of stator electromagnet members and rotor magnetic elements of the radial series rotary electric machine is a multiple of the rotating electric machine of the third embodiment, to further reduce the poor effect caused by geometric imbalance caused by other factors.
  • the radial series connected rotary motor provides better high efficiency and high output characteristics.
  • the permanent magnets adjacent to each other in the circumferential direction of the rotating shaft are not only separated by a gap but also have no ferromagnetic contact with each other. Therefore, the magnetic flux distribution of the two magnetic poles of the magnetic element can be improved to be more flat to obtain a more concentrated magnetic flux. Further improvement of the high efficiency, high output capability and flexible and safe operating characteristics of the radial series rotary electric machine can be obtained without extra space and weight.
  • the rotating electrical machine of the present invention is suitable for high-efficiency generators, rotating electrical machines, and engines that can be used to drive specialized devices, such as electric wheelchairs, electric bicycles, electric vehicles, and the like.
  • FIG. 1 is a perspective exploded view of a component of a first component of the first embodiment of the present invention before being connected in series;
  • Figure 3 is a cross-sectional view of the combination diagram of Figure 2 taken along line A-A;
  • Figure 4 is a partial detailed sectional view taken along line B-B of Figure 2;
  • Figure 5 is a cross-sectional view showing a modified structure of a cross-sectional view similar to the structure of Figure 3;
  • Figure 6 is an exploded perspective view showing a radial series-connected rotating electrical machine according to a first embodiment of the present invention;
  • FIG. 8 is a partial cross-sectional view of the first embodiment of FIG. 7;
  • Figure 9 is a cross-sectional view showing a modification of a second embodiment of the present invention, similar to the cross-sectional view of Figure 7;
  • Figure 10 is a cross-sectional view showing a modification of a third embodiment of the present invention, similar to the sectional view of Figure 9;
  • Figure 11 is a cross-sectional view showing a modification of a fourth embodiment of the present invention, similar to the cross-sectional view of Figure 10.
  • the radially adjacent two magnetic elements share a common side wall of the joint 55a.
  • the radially adjacent rotor magnetic elements share the side wall 55al
  • FIG. 1 is a perspective exploded view showing a component of a rotating component of a first embodiment of the present invention before being connected in series to illustrate a constituent member of a rotating electrical machine before being cascaded.
  • the rotating electrical machine includes a stator and a rotor.
  • the electromagnet member 60 of the stator including the coil 69 is disposed on the stator fixed plate 32 via the engaging jaws 321 , and the plurality of electromagnet members 60 are assembled to form the stator wheel ring 1 around a rotating shaft 74; the stator fixing plate 32 and the rotation
  • the shaft 74 is combined to serve as a support structure for the electromagnet member 60.
  • Each of the magnetic elements of the rotor has a generally U-shaped joint seat 55 formed of a magnetically permeable material, and two magnetic poles for forming the magnetic element are respectively disposed on inner surfaces of the side walls of the U-shaped joints 55 of each of the magnetic elements.
  • the permanent magnets 51 or 52; and the back side of each of the magnetic element U-shaped joints 55 are coupled to the rotor fixed disk 81 such that a plurality of magnetic elements surround the rotating shaft 74 to constitute the rotor wheel ring 2.
  • the rotor retaining disk 81 is coupled to one of the two rotor disks 80; a rotor outer ring 70 joins the rotor disks 80 on both sides and is coupled to the rotating shaft 74 via bearings.
  • the stator wheel ring 1 is at least partially surrounded by the rotor wheel ring 2 to define two radial air gaps between the rotor and the stator on both sides of the rotor radial direction.
  • Fig. 1 The components of the exploded view of Fig. 1 are assembled in the rotary electric machine of Fig. 2, and are suitable for use as wheels for driving as a transportation means.
  • FIG. 3 is a cross-sectional view of the rotary electric machine of FIG. 2 taken along line AA.
  • the inner surfaces of the side walls of the coupling seat 55 of each magnetic element of the rotor are respectively disposed with permanent magnets 51 or 52 whose magnetic pole faces face one of the radial air gaps; and each permanent magnet
  • the ferromagnetic pole face only shows a single magnetic field polarity and is opposite to the magnetic field polarity of the other permanent magnet pole face of the same magnetic element; and a plurality of magnetic elements surround the circumferential direction of the rotating shaft 74 with a magnetic field polarity N /S is alternately arranged to form a wheel-shaped rotor ring 2.
  • the stator electromagnet member 60 includes a pair of poles 62, 63 connected by a magnetically conductive core portion 61; a plurality of electromagnet members forming the stator ring 1 are circumferentially oriented at least partially by the permanent magnet poles 51 of the rotor magnetic member in the circumferential direction of the rotating shaft 74.
  • the 52 pole faces include: the two poles 62, 63 of the pair of poles of the stator electromagnet member 60 are respectively corresponding to the two permanent magnet poles 51, 52 of the rotor magnetic element via respective radial air gaps 21, 22;
  • the coil 69 is formed on the core portion 61 of the stator electromagnet member 60.
  • the permanent magnets 51, 52 are thin bipolar permanent magnets, each of which exhibits only a single magnetic field polarity opposite to the polarity of the back surface of the permanent magnet; adjacent to the circumferential axis of the rotating shaft 74
  • the gaps 56 between the magnetic elements need not be identical to facilitate proper mating with the components on the stator.
  • the gaps 66 between the stator electromagnet members 60 adjacent to each other in the circumferential direction of the rotating shaft 74 need not be identical, so as to properly fit the components on the rotor, and the proper arrangement is made to reduce the torque ripple of the rotating electrical machine. Achieve the smooth running required.
  • the configuration of Figure 3 allows the magnetic flux that produces the torque to be concentrated.
  • the polarity of the magnetic field indicated in the figure, S is merely illustrative of the polarity of the magnetic field facing the air gap as the pole face, and is not intended to be limiting.
  • Figure 4 is a partial detailed cross-sectional view of Figure 2 taken along line BB.
  • the rotor outer ring 70 engages the rotor disk 80 on both sides, and the magnetic element is coupled with its coupling seat 55.
  • the rotor fixing plate 81 is combined.
  • the inner surfaces of the two side walls of each of the magnetic element U-shaped joints 55 of the rotor are respectively disposed with permanent magnets 51 or 52 whose magnetic pole faces face one of the radial air gaps; and the U-shaped joints made of the magnetic conductive material 55 forms a yoke of the magnetic element, and acts as a magnetic flux return path of the two permanent magnet magnetic poles of the magnetic element to concentrate the magnetic flux at the ends of the two permanent magnet poles of the magnetic element.
  • the electromagnet member of the stator has a core portion 61 formed by linking a pair of poles 62, 63 and made of a magnetically conductive substance such as Fe, SiFe, SiFeP, SiFeCo, etc.; and having a coil 69 at the core portion of the electromagnet member Formed on 61.
  • the electromagnet member 60 is assembled to the stator fixed disk 32 via the engagement 321 and the stator fixed disk 32 is directly coupled to the rotating shaft 74.
  • the two radial air gaps 21, 22 are located between the two permanent magnet pole faces of the rotor magnetic element and the pair of pole faces of the stator electromagnet members to separate the rotor and the stator.
  • the material of the conforming 321 may be made of a non-magnetic material such as aluminum or stainless steel or the like such that each of the stator electromagnet members 60 is substantially independent of each other. Due to the ferromagnetic isolation of the stator electromagnet members, the rotor magnetic components cooperate with the stator electromagnet members to achieve a more concentrated flux distribution to provide better rotating motor characteristics.
  • a sensor or a brush that cooperates with the commutator is placed at an appropriate position to enable the coil current of each electromagnet member to be turned off at a suitable time to obtain a smooth output.
  • the rotating electrical machine is operated as a motor
  • the relative position of the stator and the rotor as measured by the perceptron is reacted to properly control the excitation of the coils on the electromagnet members, resulting in magnetization of the corresponding stator electromagnet members.
  • the opposite magnetic field polarities N, S are then generated on the pole faces of the pair of poles of the electromagnet.
  • the magnetic flux caused by the excitation of the coil generates a magnetomotive force across the air gap and electromagnetically interacts with the permanent magnet poles on the rotor. Interaction Influence to drive the rotor to rotate.
  • the following description is exemplified as an example of coil excitation control of a single electromagnet member of a stator in a rotating electrical machine.
  • the magnetic poles of the rotor magnetic element are attracted to the S pole of the magnetic pole of the stator electromagnet, the radially opposite S poles of the same magnetic element are simultaneously turned to the same electromagnet member in pairs.
  • the N pole of the pole causes the permanent magnet pole of the rotor to be attracted by the stator electromagnet members.
  • the current in the stator electromagnet member coils is reversed to force the stator electromagnet members to reverse the direction of the magnetic field of the pair of poles.
  • each of the other electromagnet members on the stator can be regarded as separate individual entities, respectively, according to the perceptron The relative position of the rotor and the stator is measured to determine the excitation control on the coil itself. Since each electromagnet member is a separate individual, not only can it be manufactured at the same time, but also the coil can be easily wound and tighter; thus, not only can the amount of copper wire of the coil winding be reduced, but also the performance of the rotating electrical machine can be improved.
  • FIG. 5 is a cross-sectional view showing a modified structure similar to the cross-sectional view of the structure of Figure 3.
  • Stator electromagnet member and rotor The number of magnetic elements may be one or more, respectively, and the number of stator electromagnet members may be the same as the number of magnetic elements on the corresponding rotor wheel ring 2; however, the number of electromagnet members on the stator of the rotating machine may be changed as
  • the arrangement illustrated in the stator wheel ring 3 of Fig. 5 is determined in accordance with the design requirements in actual implementation.
  • the changes made to the structure of the rotating electrical machine of Fig. 5 while not conducive to the maximum value output, are easier to arrange to reduce the output torque ripple.
  • Fig. 6 is an exploded perspective view showing a radial series rotary electric machine according to a first embodiment of the present invention.
  • a plurality of different diameters of the rotating electrical machine as shown in Fig. 1 can be combined in a radial series.
  • the first embodiment can be exemplified by two parallel rotating machines of Fig. 1 in a radial series, and the radially adjacent rotor wheel rings abut each other, and the radially adjacent rotor magnetic elements share a radially facing common side. Side wall 55al.
  • the radial series rotary electric machine comprises various structural features of the aforementioned rotary electric machine; each of the magnetic elements of each of the rotor rings made of a magnetically conductive material has a U-shaped cross section, and each U-shaped cross section
  • the inner surfaces of one of the side walls each contain permanent magnets 51, 52, 51a, 52a facing one of the radial air gaps.
  • the magnetic elements of the radial series rotary electric machine share a common side wall in a radially adjacent rotor wheel ring to be in contact with each other; and the magnetic element is coupled with the rotor fixed disk 81a with its coupling seat 55a.
  • Each stator electromagnet member having a coil 69 or 69a is placed on the stator fixed disk 32a via a fit 321 or 321a to define a respective radial air gap between each stator ring and its corresponding rotor ring.
  • FIG. 7 is a cross-sectional view showing a stator and a rotor of a first embodiment of the present invention.
  • Each of the rotor rings is surrounded by a permanent magnet on the inner surface of the side wall of the same side.
  • the rotating shafts are arranged in the circumferential direction, and the permanent magnet pole faces adjacent to each other in the circumferential direction of the rotating shaft have opposite magnetic field polarities.
  • the magnetic poles of the permanent magnets on both sides of each of the shared side walls have opposite polarities and the polar magnetic fields of the permanent magnets on the radially opposite sides of the same magnetic element have opposite polarities.
  • the permanent magnets of either of the two surfaces of the common side wall of the rotor can increase the concentration of the magnetic flux density distribution by sharing the common side wall 55al.
  • Figure 8 is a partial detailed sectional view of the first embodiment of Figure 7.
  • the two sides of the common side wall 55al of the radially adjacent rotor wheel rings are provided with permanent magnets 52, 51a having opposite magnetic pole polarities, so that the permanent magnets on both sides of the common side wall share the common side wall by Connected to each other.
  • the coils 69, 69a of the stator electromagnet members are energized, the opposite magnetic field polarity is formed in the poles of the pair of poles of the electromagnet; to provide a gravitational pull associated with the stator poles facing the permanent magnets through the radial air gap Or repulsion.
  • the permanent magnets on both sides of the shared side wall can support each other, and the magnetically conductive joint also forms a yoke to assist the concentration of the magnetic flux distribution of the permanent magnets 51, 52, 51a, 52a.
  • the stator pole Through the stator pole.
  • Figure 9 is a cross-sectional view showing a modification of a second embodiment of the present invention, similar to the cross-sectional view of Figure 7.
  • the structure of the radial series rotary electric machine of Fig. 7 is changed.
  • one of the outer stator wheel ring or the inner stator wheel ring is rotated in a respective circumferential direction to move the wheel ring at a corresponding angle so that the stator is on the same wheel ring.
  • the gap 66 between the two adjacent electromagnet members and the gap 66a between the two adjacent electromagnet members on the other wheel rings are balanced around the circumferential direction of the rotating shaft, as shown in FIG.
  • the sub-wheel ring is exemplified; of course, if more rotating electric machines are connected in series, only the angle of rotation of each stator wheel ring in the respective circumferential directions should be noted, so that each of the plurality of stator rings on the stator
  • the wheel ring is distributed as a magnetically isolated gap between the electromagnet members adjacent to each other in the circumferential direction of the rotating shaft, and is distributed in the circumferential direction of the stator of the rotating shaft.
  • the coils of the electromagnet members of the radial series-connected rotating electrical machine are each appropriately excited, so that the motor can achieve smoother operation while increasing the output.
  • Fig. 10 is a cross-sectional view showing a modification of a third embodiment of the present invention, similar to the sectional view of Fig. 9.
  • the gap between the rotor magnetic elements adjacent to the circumferential direction of the rotating shaft and the poles of the stator electromagnet members adjacent to the circumferential direction of the rotating shaft Although the gaps need not be the same, a suitable arrangement can be made to further reduce the torque ripple of the motor. Similar to the rotation motor of Figure 5, in order to reduce the output torque ripple, the structure of the rotating machine of Figure 3 is changed. The change to the configuration of the radial series rotary electric machine of Fig.
  • Figure 11 is a cross-sectional view showing a modification of a fourth embodiment of the present invention, similar to the cross-sectional view of Figure 10.
  • Figure 11 shows a cross-sectional view of the stator and rotor of a radial series rotary electric machine; in each of the rotor wheel rings 11, 12 of the motor and the respective stator wheel rings 13, 14
  • the number of each stator ring electromagnet member and each rotor ring magnetic element is an integer multiple of that in the rotating motor of Fig. 10, and the excitation control of the coil in the motor is exactly the same as that of Fig. 10, and only the radial connection of Fig. 11 is required.
  • the coil 69bl, 69b2 (both 69cl, 69c2) in which the stator electromagnet members have a spatial angle difference of 180 degrees is excited in series or in parallel, so that it is more careful to prevent the geometric imbalance caused by other factors. effect.
  • the respective individual elements in the present invention correspond to each other in a radial direction, even if only one of the coils excited in series or in parallel is excited and the other coil cannot be excited for any reason, the formed single element operates independently, and the pair The adverse effects of radial series rotary motors can also be minimized.
  • the rotor outer ring and the rotor fixed disk may be formed of a non-magnetic material such that the permanent magnets adjacent to each other in the circumferential direction around the rotating shaft are not only gapped with each other Separate and non-ferromagnetic contacts. Therefore, a flatter magnetic flux distribution on the rotor pole is provided; the concentration of the magnetic flux, the magnetic flux are utilized as much as possible, and the conversion interference effect of the magnetic flux is minimized to obtain a high efficiency output at a high output.
  • the operation of the rotary motor in series.
  • the permanent magnets of the rotor magnetic element are arranged substantially continuously around the rotating shaft with the magnetic field polarity N/S alternately on the rotor fixed disk; although the number of magnetic elements on each of the wheel rings of the rotor may be an odd number, However, in order to obtain a rotating electric machine that is easy to operate smoothly, the number of magnetic elements on each of the wheel rings of the rotor is preferably an even number, so that the rotor is easy to arrange the distribution of the magnetic field and its geometric balance.
  • the number of rotor magnetic elements and stator electromagnet members may be the same or different to meet the design requirements. Requirements.
  • the size of the components of the stator or the rotor can be individually manufactured in a standardized manner, which facilitates the simplification of manufacturing.
  • the radial series rotary electric machine of the present invention In addition to providing greater output, higher energy efficiency, the radial series rotary electric machine is actually easy to manufacture.
  • the embodiments of the present invention have been described above, such as placing an electromagnet member having a coil on a stator and a magnetic member on the rotor; these components can also be reversed so that the magnetic member is carried by the stator and the rotor A coil with a raised pole.
  • the plurality of radial series rotary electric machines of the embodiments of the present invention may be axially connected in series to increase the supply of the output in an axially expanding manner.
  • more rotating electric machines are connected in series in radial direction, and the stator wheel ring is in three-dimensional space.
  • Each of the plurality of electromagnet members is arranged at an angle in the circumferential direction of the rotating shaft to reduce the torque ripple of the radial series connected rotating electrical machine.
  • stator of the present invention is illustrated as an inner stator surrounded by an outer rotor, these structures can also be reversed so that the rotor is surrounded by the stator.
  • stator of the present invention is illustrated as an inner stator surrounded by an outer rotor, these structures can also be reversed so that the rotor is surrounded by the stator.
  • only a few of the various examples of the invention are shown and described.
  • the invention can be applied to a wide variety of other combinations and environments, and can be varied or modified without departing from the spirit and scope of the invention.

Abstract

L'invention concerne un moteur rotatif connecté en série, radial, ayant un rotor et un stator. Le rotor comprend une pluralité d'anneaux en forme de roue (2, 11, 12) qui sont coaxiaux et radialement adjacents, et chacun des anneaux en forme de roue (2, 11, 12) comprend une pluralité d'éléments magnétiques avec des aimants permanents. Le stator comprend une pluralité d'anneaux en forme de roue (1, 3, 9, 10, 13, 14) qui sont coaxiaux et radialement adjacents, et chacun des anneaux en forme de roue (1, 3, 9, 10, 13, 14) comprend une pluralité d'électroaimants (60). Chaque anneau en forme de roue (1, 3, 9, 10, 13, 14) du stator est au moins partiellement encerclé par l'anneau en forme de roue correspondant (2, 11, 12) du rotor, de façon à définir une pluralité de couches d'air radiales (21, 22).
PCT/CN2007/003150 2006-11-07 2007-11-07 Moteur rotatif connecté en série, radial WO2008055416A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610135214.5 2006-11-07
CNA2006101352145A CN1949639A (zh) 2006-11-07 2006-11-07 径向串接旋转电机

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WO2008055416A1 true WO2008055416A1 (fr) 2008-05-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017182912A1 (fr) * 2016-04-18 2017-10-26 The Trustees For The Time-Being Of The Kmn Fulfilment Trust Générateur comportant de multiples pôles magnétiques contraires radialement alignés
WO2019073335A1 (fr) 2017-10-10 2019-04-18 The Trustees For The Time Being Of The Kmn Fulfilment Trust Générateur électrique multicouche

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JP2003102158A (ja) * 2001-09-26 2003-04-04 Japan Servo Co Ltd ブラシレスｄｃモータ
CN1734881A (zh) * 2005-06-29 2006-02-15 陆孝庭 无刷旋转电动机
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