WO2021104123A1 - Moteur et dispositif comprenant ledit moteur - Google Patents

Moteur et dispositif comprenant ledit moteur Download PDF

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Publication number
WO2021104123A1
WO2021104123A1 PCT/CN2020/129747 CN2020129747W WO2021104123A1 WO 2021104123 A1 WO2021104123 A1 WO 2021104123A1 CN 2020129747 W CN2020129747 W CN 2020129747W WO 2021104123 A1 WO2021104123 A1 WO 2021104123A1
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WO
WIPO (PCT)
Prior art keywords
mover
stator
permanent magnet
permanent magnets
teeth
Prior art date
Application number
PCT/CN2020/129747
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English (en)
Chinese (zh)
Inventor
孙权
马悦
王广仁
Original Assignee
南方电机科技有限公司
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 南方电机科技有限公司 filed Critical 南方电机科技有限公司
Priority to DE112020005359.8T priority Critical patent/DE112020005359T5/de
Publication of WO2021104123A1 publication Critical patent/WO2021104123A1/fr

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    • 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
    • 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

Definitions

  • the present invention relates to the field of electromagnetic technology, in particular to a motor and equipment including the motor.
  • embodiments of the present invention provide a motor and a device including the motor.
  • a first aspect of the present invention provides a motor, the motor includes a stator assembly and a mover assembly; the stator assembly includes a first stator and at least one second stator; the mover assembly includes at least one mover;
  • stator in the stator assembly and the mover in the mover assembly are arranged opposite to each other, and there is an air gap between the adjacent stators and the mover;
  • Each of the stators has the same number of pole pairs
  • a first winding is provided on the first stator.
  • first stator and the second stator form the same number of teeth on the surface corresponding to the mover, so as to have the same number of pole pairs; and/or the first stator and the second stator
  • the stator is provided with the same number of permanent magnets corresponding to the surface of the mover, so as to have the same number of pole pairs.
  • the first stator includes a first stator yoke portion and N first large teeth formed by the first stator yoke portion extending in the direction of the mover, where N ⁇ 3; or
  • the first stator includes N third teeth extending in the direction of the mover on both sides respectively, where N ⁇ 3.
  • the second stator includes the following structure to have the same number of pole pairs as the first stator;
  • the second stator includes a second stator yoke portion and N hidden teeth formed on the surface of the second stator yoke portion corresponding to the mover assembly; and/or
  • the second stator includes a second stator yoke portion and N second large teeth formed by the second stator yoke portion extending in the direction of the mover provided on one side, and the second large teeth are provided with a first Secondary winding; and/or
  • the second stator includes N fourth large teeth extending in the direction of the mover provided on both sides, and a second winding is provided on the fourth large teeth;
  • the second stator includes a second stator yoke, and a fourth stator permanent magnet is attached to the surface of the second stator yoke corresponding to the mover. Two adjacent fourth stator permanent magnets are in the air gap. The direction of the magnetic field formed in it is opposite to form a pair of poles.
  • each of the first large teeth forms n first stator small teeth corresponding to the surface of the first mover; a first stator small slot is formed between two adjacent first stator small teeth , Where n ⁇ 2;
  • each of the hidden tooth, the second large tooth and/or the fourth large tooth N second stator small teeth are formed on the upper side; a second stator small slot is formed between two adjacent second stator small teeth.
  • first stator small slots are provided with first stator permanent magnets; the first stator permanent magnets corresponding to the same mover have the same direction of the magnetic field formed in the air gap; and/or
  • At least part of the second stator small slots are provided with second stator permanent magnets; the direction of the magnetic field formed in the air gap by the second stator permanent magnets located on the same second stator and corresponding to the same mover the same.
  • the second stator when the movers are respectively provided on both sides of the second stator, the second stator includes the following structure to have the same number of pole pairs as the first stator;
  • the second stator includes N independent stator units arranged in sequence along the moving direction of the mover;
  • Each of the stator units includes n stator magnetic parts arranged at intervals along the moving direction of the mover, where n ⁇ 2;
  • a third stator permanent magnet is arranged between two adjacent stator magnetic conductive parts.
  • the movers provided on both sides of the second stator are respectively provided with first mover permanent magnets and/or second mover permanent magnets corresponding to the second stator;
  • the direction of the magnetic field formed by the third stator permanent magnet, the first mover permanent magnet and/or the second mover permanent magnet in the air gap is the same.
  • n stator magnetic conductive parts are connected into one body through the stator connection part; or the n stator magnetic conductive parts are prefabricated into one body.
  • the mover includes a mover yoke portion; the mover yoke portion forms a plurality of mover small teeth corresponding to the surface of the stator assembly, and a mover small slot is formed between two adjacent mover small teeth ;and / or
  • the mover includes surface-mounted permanent magnets arranged in sequence along the direction of movement of the mover; the magnetic fields formed by two adjacent surface-mounted permanent magnets in the air gap have opposite directions to form a pair of poles. ;and / or
  • the mover includes a plurality of spoke-shaped magnetically conductive parts and fifth mover permanent magnets embedded between two adjacent spoke-shaped magnetically conductive parts; the magnetic fields of the two adjacent fifth mover permanent magnets The polarities along the moving direction of the mover are opposite to form a pair of poles.
  • the mover slot is provided with a first mover permanent magnet.
  • first mover permanent magnet is corresponding to the first stator permanent magnet provided on the first stator, the second stator permanent magnet provided on the second stator and/or the second stator correspondingly
  • the direction of the magnetic field formed by the corresponding third stator permanent magnets in the air gap is the same.
  • the movers are respectively provided on both sides of the first stator, if the first mover permanent magnets on the movers on both sides form the magnetic field in the air gap in opposite directions ,
  • the small teeth of the mover on the movers on both sides are staggered by half a tooth pitch or pole pitch; if the permanent magnets of the first mover on the movers on both sides are in the The direction of the magnetic field formed in the air gap is the same, and the mover small teeth on the mover on both sides are aligned.
  • stator components are respectively arranged on both sides of the mover;
  • the mover includes a plurality of mover magnetic conductive parts arranged at intervals along the moving direction of the mover;
  • a second mover permanent magnet is arranged between two adjacent mover magnetic conductive parts
  • the second mover permanent magnet and the first stator permanent magnet correspondingly arranged on the first stator
  • the second stator permanent magnet correspondingly arranged on the second stator and/or the second stator
  • the direction of the magnetic field formed by the corresponding third stator permanent magnets in the air gap is the same.
  • At least one end or any position in the middle of the plurality of mover magnetically conductive parts are connected into a whole body by the mover connecting part; or the plurality of mover magnetically conductive parts are prefabricated into one body.
  • the movers are respectively arranged on both sides of the first stator, if the second mover permanent magnets on the movers on both sides respectively form the direction of the magnetic field in the air gap
  • the magnetic conductive parts of the movers on both sides are staggered by half the magnetic conductive part pitch or pole pitch; if the second movable parts on the movers on both sides are The direction of the magnetic field formed by the sub-permanent magnets in the air gap is the same, and the magnetic conductive parts of the mover on the two sides of the mover are aligned.
  • stator assembly includes at least two of the second stators; and/or
  • the mover assembly includes at least two movers; and/or
  • Each mover in the mover assembly has the same number of pole pairs.
  • a second aspect of the present invention provides a motor, the motor includes a stator assembly and a mover assembly; the stator assembly includes at least a first stator; the mover assembly includes at least two movers;
  • stator in the stator assembly and the mover in the mover assembly are arranged opposite to each other, and there is an air gap between the adjacent stators and the mover; wherein, the at least two movers are respectively arranged at Both sides of the first stator;
  • Each stator in the stator assembly has the same number of pole pairs; each mover in the mover assembly has the same number of pole pairs;
  • a first winding is provided on the first stator.
  • the first stator includes third teeth extending to the movers respectively provided on the two sides; or
  • the first stator includes a third large tooth extending to the mover provided on the two sides respectively; the third large tooth includes a first surface and a first surface corresponding to the mover on the two sides. Two sides; the first side and the second side respectively form first stator teeth; or
  • the first stator includes a third large tooth extending to the mover provided on the two sides respectively; the third large tooth includes a first surface and a first surface corresponding to the mover on the two sides. Two sides; the first surface and the second surface respectively form first stator small teeth; at least part of the first stator small teeth are embedded with first stator permanent magnets.
  • stator assembly further includes at least one second stator; the second stator includes the following structure:
  • the second stator includes a second stator yoke portion and hidden teeth formed on the surface of the second stator yoke portion corresponding to the mover assembly; and/or
  • the second stator includes a second stator yoke portion and a second large tooth formed by the second stator yoke portion extending in the direction of the mover provided on one side, and a second winding is provided on the second large tooth ;and / or
  • the second stator When the movers are respectively provided on both sides of the second stator, the second stator includes fourth teeth extending in the direction of the movers respectively provided on the two sides, and the fourth teeth A second winding on the upper side; and/or
  • the second stator When the movers are respectively provided on both sides of the second stator, the second stator includes a plurality of independent stator units arranged in sequence along the moving direction of the mover; each of the stator units includes the mover along the moving direction. A plurality of stator magnetic conductive parts arranged at intervals in the sub-movement direction; a third stator permanent magnet is arranged between two adjacent stator magnetic conductive parts; and/or
  • the second stator includes a second stator yoke, and a second stator permanent magnet is attached to the surface of the second stator yoke corresponding to the mover assembly.
  • the direction of the magnetic field formed in the gap is opposite to form a pair of poles.
  • the mover includes the following structure:
  • the mover includes a mover yoke portion; the mover yoke portion forms a plurality of mover small teeth corresponding to the surface of the stator assembly, and a mover small slot is formed between two adjacent mover small teeth; and /or
  • the mover includes a mover yoke portion; the mover yoke portion forms a plurality of mover small teeth corresponding to the surface of the stator assembly, and a mover small slot is formed between two adjacent mover small teeth; at least Part of the mover's small grooves are provided with mover permanent magnets; and/or
  • the mover When the stators are respectively provided on both sides of the mover; the mover includes a plurality of mover magnetically conductive parts arranged at intervals along the moving direction of the mover; two adjacent mover magnetically conductive parts A second mover permanent magnet is arranged between; and/or
  • the mover includes surface-mounted permanent magnets arranged in sequence along the direction of movement of the mover; the magnetic fields formed by two adjacent surface-mounted permanent magnets in the air gap have opposite directions to form a pair of poles. ;and / or
  • the mover includes a plurality of spoke-shaped magnetically conductive parts and fifth mover permanent magnets embedded between two adjacent spoke-shaped magnetically conductive parts; the magnetic fields of the two adjacent fifth mover permanent magnets The polarities along the moving direction of the mover are opposite to form a pair of poles.
  • the at least two movers include adjacent first movers and second movers; when the first movers and the second movers are respectively located on both sides of a certain stator;
  • the first mover of the first mover The small teeth of the third mover and the small teeth of the fourth mover of the second mover are respectively staggered by half the pitch or pole pitch; if the permanent magnet of the third mover on the first mover and the second mover The direction of the magnetic field formed by the permanent magnets of the fourth mover in the air gap is the same, and the small teeth of the third mover of the first mover are aligned with the small teeth of the fourth mover of the second mover; and / or
  • the mover includes surface-mounted permanent magnets sequentially arranged along the moving direction of the mover;
  • the stator is provided The direction of the magnetic field formed in the air gap by the stator permanent magnets corresponding to the first mover and the second mover respectively is opposite; if the permanent magnets of the third mover are aligned with the position of the fourth mover.
  • the magnetic field directions formed by the sub-permanent magnets in the air gap are the same, and the magnetic field directions formed in the air gap by the stator permanent magnets respectively corresponding to the first mover and the second mover are provided on the stator The same; and/or
  • the mover includes a plurality of spoke-shaped magnetically conductive parts and a fifth mover permanent magnet embedded between two adjacent spoke-shaped magnetically conductive parts;
  • the magnetic field of the permanent magnet on the second mover has opposite polarity along the direction of movement of the mover
  • the stator The direction of the magnetic field formed by the stator permanent magnets corresponding to the first mover and the second mover respectively in the air gap is the same; if the permanent magnets of the third mover are aligned with the position of the first mover
  • the magnetic fields of the four-mover permanent magnets have the same polarity along the moving direction of the mover, and the stator permanent magnets provided on the stator respectively corresponding to the first mover and the second mover are in the air gap
  • the direction of the formed magnetic field is opposite.
  • a third aspect of the present invention provides a device including a motor, and the device includes at least one of the motors described above.
  • the magnetic flux saturation limit of a single stator can be overcome, the maximum output of the motor can be increased, and the current protection degree can be reduced.
  • the maximum output of the motor can be further improved and the current protection degree can be reduced.
  • the bilaterally arranged stator can compensate for the force on both sides of the mover, thereby reducing the problem of eccentric force and reducing the fluctuation of the motor.
  • each stator and mover By arranging movers on both sides of the stator, each stator and mover have the same number of pole pairs; therefore, each stator and mover have the same frequency, so that at least one stator can drive multiple movers to move.
  • the maximum output of the motor can be increased by setting up multiple layers of movers to overcome the limitation of the saturation of the magnetic flux of a single mover.
  • the first stator acts simultaneously with the movers on both sides, which will reduce the unbalanced force of the motor, so that the number of teeth of the first stator or the number of slots between two adjacent teeth can be reduced.
  • the mover has a yoke structure with higher rigidity, or the volume of other rigid structures of the mover itself is increased, so the mover is mechanically The intensity is higher and the motor stability is better.
  • FIG. 1 is a schematic diagram of a first overall structure of a motor provided by an embodiment of the present invention
  • FIG. 2 is a partial enlarged schematic diagram of a first overall structure of a motor provided by an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a second overall structure of a motor provided by an embodiment of the present invention.
  • FIG. 4 is a partial enlarged schematic diagram of a second overall structure of a motor provided by an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a third overall structure of a motor provided by an embodiment of the present invention.
  • FIG. 6 is a partial enlarged schematic diagram of a third overall structure of a motor provided by an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a fourth overall structure of a motor provided by an embodiment of the present invention.
  • FIG. 8 is a partial enlarged schematic diagram of a fourth overall structure of a motor provided by an embodiment of the present invention.
  • Fig. 9 is a fifth partial enlarged schematic diagram of a motor provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the sixth overall structure of a motor provided by an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of the seventh overall structure of a motor provided by an embodiment of the present invention.
  • FIG. 12A is a schematic diagram of the eighth overall structure of a motor provided by an embodiment of the present invention
  • FIG. 12B is a schematic diagram of the ninth overall structure of a motor provided by an embodiment of the present invention
  • FIG. 12C is a schematic diagram of the tenth overall structure of a motor provided by an embodiment of the present invention
  • FIG. 12D Fig. 12E is an enlarged schematic diagram of a second stator magnetization unit in the eighth overall structure diagram of the motor provided by an embodiment of the present invention
  • Fig. 12F is an embodiment of the present invention
  • FIG. 12G is a schematic diagram of the overall structure of the thirty-ninth motor provided by an embodiment of the present invention
  • FIG. 13A is a schematic diagram of the twelfth overall structure of the motor provided by an embodiment of the present invention
  • FIG. 13B is an exploded schematic diagram of the twelfth overall structure of the motor provided by an embodiment of the present invention
  • FIG. 14A is a schematic diagram of the thirteenth overall structure of a motor provided by an embodiment of the present invention
  • FIG. 14B is an exploded schematic diagram of the thirteenth overall structure of a motor provided by an embodiment of the present invention
  • FIG. 15A is a schematic diagram of a first partial enlarged structure of a first stator small tooth of a motor provided by an embodiment of the present invention
  • FIG. 15B is a schematic diagram of a second partial enlarged structure of the first stator small tooth of a motor provided by an embodiment of the present invention
  • 16 is a schematic diagram of a first partial enlarged structure of a mover of a motor provided by an embodiment of the present invention.
  • FIG. 17A is a schematic diagram of a fourteenth partial enlarged structure of a motor provided by an embodiment of the present invention
  • FIG. 17B is a schematic diagram of a fifteenth partial enlarged structure of a motor mover provided by an embodiment of the present invention
  • FIG. 18A is a schematic diagram of a sixteenth partial enlarged structure of a motor provided by an embodiment of the present invention
  • FIG. 18B is a schematic diagram of a seventeenth partial enlarged structure of a motor provided by an embodiment of the present invention
  • FIG. 18C is a schematic diagram of the sixteenth partial enlarged structure of the motor provided by an embodiment of the present invention Eighteenth partial enlarged structural diagram
  • FIG. 18D is a nineteenth partial enlarged structural diagram of a motor provided by an embodiment of the present invention.
  • FIG. 19A is a schematic diagram of the twentieth three-dimensional structure of a motor provided by an embodiment of the present invention
  • FIG. 19B is a schematic diagram of a twentieth plane structure of the motor provided by an embodiment of the present invention
  • FIG. 20A is a schematic perspective view of the twenty-first structure of a motor provided by an embodiment of the present invention
  • FIG. 20B is a schematic view of the twenty-first exploded structure of a motor provided by an embodiment of the present invention
  • FIG. 21 is a schematic diagram of a twenty-second structure of a motor provided by an embodiment of the present invention.
  • FIG. 22A is a schematic diagram of a twenty-third partial enlarged structure of a motor provided by an embodiment of the present invention
  • FIG. 22B is a schematic diagram of a twenty-fourth partial enlarged structure of a motor provided by an embodiment of the present invention
  • FIG. 22C is a schematic diagram of a twenty-fourth partial enlarged structure of the motor provided by an embodiment of the present invention
  • Figure 22D is a schematic diagram of a twenty-sixth partial enlarged structure of a motor provided by an embodiment of the present invention
  • FIG. 23A is a schematic diagram of a twenty-seventh partial enlarged structure of a motor provided by an embodiment of the present invention
  • FIG. 23B is a schematic diagram of a twenty-eighth partial enlarged structure of a motor provided by an embodiment of the present invention.
  • a motor 10 is provided.
  • the motor 10 may be various types of motors currently or developed in the future with the following structure.
  • the relative movement of the stator and the first mover of the motor may include: a rotating motor (as shown in the figure). 1-6) or linear motors (as shown in Figures 7-9 and 12F); taking the flux trend of a rotating motor as an example, it can include axial flux rotating motors (as shown in Figures 13A-14B), diameter Directional flux rotating motor (as shown in Figure 1-6) or axial-radial hybrid flux rotating motor (illustration omitted).
  • the motor can be a motor that converts electrical energy into kinetic energy for output; it can also be a generator that converts kinetic energy into electrical energy for output.
  • the two can be realized by using the same structure.
  • the functions of a generator or a motor can be realized respectively.
  • the specific embodiment will be described in further detail below by taking the motor 10 as an example of a motor.
  • An embodiment of the present invention provides a motor, which includes a stator assembly and a mover assembly;
  • the stator assembly includes a first stator and at least one second stator;
  • the mover assembly includes at least one mover;
  • stator in the stator assembly and the mover in the mover assembly are arranged opposite each other, and there is an air gap between the adjacent stators and movers to form a magnetic gap;
  • each stator and each mover are arranged relative to each other, or part of the stator and the mover are arranged relative to each other, for example: two Two movers are arranged in parallel between the two stators.
  • each stator and each mover are arranged oppositely (as shown in Figs. 12A-12D).
  • the motor 10 includes a stator assembly and a mover assembly; the stator assembly includes a first stator 11 and a second stator 12; Sub 13 is taken as an example for detailed description.
  • the first stator 11, the mover 13, and the second stator 12 are arranged at intervals, that is, the first stator 11 and the second stator 12 are respectively located on both sides of the mover 13; and the first stator 11, the mover 13 and the second stator Air gaps L are formed between the stators 12, respectively.
  • Each stator in the stator assembly has the same number of pole pairs. Since each stator has the same number of pole pairs, each stator has the same frequency, so that one stator with windings can drive multiple stators without windings.
  • each stator has the same number of small teeth on the surface of the mover; or Each stator corresponds to the mover to form the same number of large teeth and/or hidden teeth.
  • each large tooth or hidden tooth is provided with the same number of small stator teeth; or the same number of independent magnetic conductive units (The permeable unit is regarded as a tooth) and so on. It is preferable to form a structure of large teeth and/or hidden teeth, so that the output of the motor can be improved.
  • it can also mean that the same number of permanent magnets are provided on the surface of each stator corresponding to the mover.
  • the pole pair of each mover can be correspondingly known according to the number of pole pairs of the winding. Logarithm. If only one set of windings is provided for a motor, the number of winding pole pairs is fixed, so the number of pole pairs of each mover is also fixed.
  • the motor includes a second stator other than the first stator
  • the second stator is provided with a second winding
  • the number of pole pairs of each stator is the same, when the number of pole pairs between the second winding 17 and the first winding 14 is When the same (as shown in Figure 7 or Figure 9), the number of pole pairs of each mover is also the same.
  • FIGS. 12A-12D in some cases, when movers 13 are provided on both sides of the first stator 11 or the second stator of the motor 10, each of the above-mentioned stators has the same number of pole pairs.
  • the first stator 11 or the second stator 12 respectively have the same number of pole pairs corresponding to the two ends of the mover 13.
  • a first winding 14 is provided on the first stator 11.
  • first winding 14 on the first stator 11 may be that only the first winding is provided on the first stator; in addition, the second winding may also be provided on the second stator. Preferably, only the first winding is provided on the first stator.
  • first stator has the same number of pole pairs
  • second stators can be driven by the first stator to drive the mover to move.
  • the use of windings can reduce the copper loss caused by the windings of the motor. In addition, it also corresponds to the reduction of the use of magnetic conductive parts, thereby reducing the volume and weight of the motor.
  • the first winding can be arranged on the first stator in various structural ways.
  • the first large tooth or the third large tooth can be formed on the first stator, and the second A winding is arranged on the first large tooth or the third large tooth (for example: wound on the first large tooth, or accommodated in the large slot between the first large tooth), etc.; or the first stator is in the yoke
  • a plurality of first stator small teeth are directly formed on the part, and windings are wound on the plurality of first stator small teeth, and so on.
  • the winding mode of the first winding 14 can be centralized or distributed, which is not limited in this embodiment.
  • first stators there may be one or more first stators in the motor, and when there are more than one, it can be regarded as a combination of the foregoing multiple stator assemblies and mover assembly structures.
  • the second stator and the mover are at least one.
  • more than two second stators 12 and/or more than two movers 13 may be provided.
  • the motor includes two movers 13 and two second stators 12; as shown in Figure 12B, the motor includes a second stator 12 and two movers 13; as shown in Figure 12A, 12D , 12F, 14A or 14B, the motor includes three second stators 12 and three movers 13.
  • the motor may also include stators and movers existing in the same, similar or other structural forms, as long as each stator in the motor is guaranteed All having the same number of pole pairs belong to the protection scope of the present invention.
  • the first stator 11 when the mover 13 is provided on one side of the first stator 11, the first stator 11 includes a first stator yoke 111 and a first stator yoke 111. N first teeth 112 formed by extending 111 to mover 13, where N ⁇ 3, that is, N is an integer greater than or equal to 3;
  • each yoke can be prefabricated as a whole or connected by splicing. One, or it can be divided into multiple independent units.
  • each first large tooth corresponds to the surface of the mover to form n first stator small teeth 1121, where n ⁇ 2, that is, n is greater than or equal to 2.
  • An integer of; a first stator small slot is formed between two adjacent first stator small teeth 1121;
  • the first large teeth 112 may be, but are not limited to, T-shaped teeth (as shown in FIG. 15B) or straight teeth (as shown in FIG. 15A). In this specific embodiment, T-shaped teeth are preferred.
  • At least part of the first stator small slots are provided with first stator permanent magnets; the first stator permanent magnets corresponding to the same mover have the same direction of the magnetic field formed in the air gap L.
  • the direction of the magnetic field formed in the air gap can be radial; in a linear motor, the direction of the magnetic field formed in the air gap is radial.
  • the direction of the magnetic field formed in can be a direction perpendicular to the air gap.
  • the first stator 11 when the movers 13 are provided on both sides of the first stator 11 of the motor 10, the first stator 11 includes the movers 13 on both sides respectively.
  • N third large teeth 113 formed by extending in the direction, where N ⁇ 3.
  • N third teeth can be arranged separately from each other (as shown in Figures 12B-12D and 12F), or they can be unified by the stator yoke (the drawings are omitted); preferably N third teeth Separately set up separately from each other; or connect each independently set third large tooth 113 into one body through a non-magnetically conductive part (illustration omitted), that is, two adjacent independent third large teeth 113 are fixedly connected through a non-magnetically conductive part Together, and no magnetic field lines pass through the non-magnetic part between two adjacent third large teeth 113.
  • the non-magnetic part can prevent the stator assembly of the motor from being misaligned or misaligned during the movement of the stator assembly of the motor. Loose.
  • the non-magnetically conductive part can be made of any material that is not magnetically conductive.
  • each third large tooth corresponding to the mover form n first stator small teeth 1121 (ie, n first stator teeth are formed on each surface, respectively).
  • At least part of the first stator small slots are provided with first stator permanent magnets; the direction of the magnetic field formed by the first stator permanent magnets in the air gap L is the same.
  • the second stator may include, but is not limited to, the following structures:
  • the second stator 12 includes a second stator yoke 121 and N hidden teeth 123 formed on the surface of the second stator yoke 121 corresponding to the mover 13.
  • the hidden tooth can be provided on one side of the second stator (when one side corresponds to the mover) or on both sides of the second stator (when both sides correspond to the mover).
  • n second stator small teeth 1211 are formed on each hidden tooth; a second stator small slot is formed between two adjacent second stator small teeth 1211 .
  • first stator slot and the second stator slot may be open slots (as shown in Figures 2, 4, 6 or 8), semi-open slots, closed slots, and so on.
  • second stator permanent magnets are provided in at least part of the second stator slots; the second stator permanent magnets corresponding to the same mover on the same second stator are located on the same second stator.
  • the direction of the magnetic field formed in the air gap L is the same.
  • the first permanent magnet M1 corresponding to the same mover 13 ie, the first stator permanent magnet
  • the second permanent magnet M2 ie, the second stator permanent magnet
  • each second stator slot on the second stator is arranged in each second stator slot on the second stator as an example for further description.
  • each first permanent magnet M1 in the air gap L is the same; the direction of the magnetic field formed by each second permanent magnet M2 in the air gap L is the same; and the first permanent magnet M1 and the second permanent magnet M2 are mutually
  • the direction of the magnetic field formed in the air gap can be the same (as shown in Figure 4 or 6) or opposite (as shown in Figure 2).
  • first permanent magnet M1 and the second permanent magnet M2 may be one permanent magnet (as shown in FIG. 15A), multiple permanent magnets, or an array composed of multiple permanent magnets, such as Halbach array. (As shown in Figure 15B).
  • Halbach array permanent magnet is taken as an example for description.
  • the second stator 12 when the mover 13 is provided on both sides of the second stator 12, the second stator 12 includes N independent The stator unit 124, where N ⁇ 3. It should be noted that the independent stator units 124 may mean that the stator units 124 are arranged at a certain distance from each other (as shown in FIG. 12A or 12D); or the independent stator units 124 are connected into one body through a non-magnetic conductive part (omitted Attached).
  • each stator unit 124 includes n stator magnetic conductive parts 1241 arranged at intervals along the moving direction of the mover 13, and a third stator magnetic conductive part 1241 is arranged between the n stator magnetic conductive parts 1241.
  • Stator permanent magnet where n ⁇ 2;
  • the movers 13 provided on both sides of the second stator 12 are respectively provided with first mover permanent magnets and/or second mover permanent magnets corresponding to the second stator 12;
  • the direction of the magnetic field formed by the magnet and the first mover permanent magnet and/or the second mover permanent magnet in the air gap is the same.
  • stator permanent magnet For the third stator permanent magnet, reference may be made to the above-mentioned first stator permanent magnet and second stator permanent magnet, and the related description of the second mover permanent magnet in the following embodiments, which will not be repeated here.
  • stator connection part at least one end of the n stator magnetic conductive parts of each stator unit is connected into a whole body through the stator connection part, so that the plurality of stator magnetic conductive parts are arranged neatly as a whole, which reduces the follow-up of a single stator magnetic conductive part. Steps for splicing.
  • stator connection part please refer to the related description of the mover connection part in the following embodiments, which will not be repeated here.
  • the second stator With the above structure, since the use of the yoke is reduced, the volume and weight of the second stator can be reduced, thereby reducing the volume and weight of the motor.
  • the second stator 12 may include a second stator yoke portion 121 and N second stator yoke portions 121 extending toward the first mover 13'. Teeth 122; the second stator 12 is provided with a second winding 17. Specifically, the second winding 17 may be provided on the second large tooth 122, for example, wound on the second large tooth, or arranged in a second large slot formed between two adjacent second large teeth.
  • each second large tooth 122 forms n second stator small teeth 1211 corresponding to the surface of the first mover 13'; a second stator is formed between two adjacent second stator small teeth 1211 Small slot.
  • At least part of the second stator slots are provided with second stator permanent magnets; the second stator permanent magnets on the same stator and corresponding to the same mover have the same magnetic field direction in the air gap.
  • the second stator 12 may also include N formed by extending in the direction of the mover located on both sides of the second stator.
  • a fourth large tooth 114 may be provided with a second winding 15 on the fourth large tooth 114.
  • a plurality of second stator small teeth 1211 are formed on both sides of each fourth large tooth 114 corresponding to the surfaces of the movers 13 on both sides; and a plurality of second stator small teeth 1211 are formed between two adjacent second stator small teeth 1211.
  • the second stator slot is formed on both sides of each fourth large tooth 114 corresponding to the surfaces of the movers 13 on both sides; and a plurality of second stator small teeth 1211 are formed between two adjacent second stator small teeth 1211.
  • second stator permanent magnets are arranged in at least part of the second stator slots; the second stator permanent magnets located on the same stator and corresponding to the same mover have the same direction of the magnetic field formed in the air gap.
  • the second stator 12 includes a second stator yoke and a fourth stator permanent magnet attached to the surface of the second stator yoke corresponding to the mover (for example: the tenth permanent magnet M10).
  • the attached tenth permanent magnet M10 can form multiple independent units corresponding to the first large tooth or the third large tooth of the first stator, for example: as shown in FIG. 18B, corresponding to the first stator 11
  • the plurality of first large teeth 112 form a plurality of independent units.
  • the direction of the magnetic field formed in the air gap by the fourth stator permanent magnet of each unit is aligned with the position of the first stator or other second stators.
  • the direction of the magnetic field formed by the stator (if there are multiple second stators) in the air gap is the same to form a larger output; or as shown in Figure 18C, the tenth permanent magnet M10 is arranged in sequence, etc., as long as the first stator is ensured It is only necessary that 11 and the second stator 12 have the same number of pole pairs.
  • the directions of the magnetic fields formed in the air gap by two adjacent permanent magnets in the tenth permanent magnet M10 are opposite, so two adjacent permanent magnets form a pair of poles, and the first large tooth 112 or the third large tooth 112
  • Each first stator small tooth 1121 at the end of the tooth 113 forms a pair of poles with the first small slot or the first permanent magnet M1 located in the first small slot.
  • the number of tenth permanent magnets M10 is adjusted so that the first stator 11 and the second stator 12 have the same number of pole pairs, or multiple second stators have the same number of pole pairs.
  • each of the above-mentioned second stators may use only hidden teeth, stator units, second large teeth, four large teeth, or surface-attached fourth stator permanent magnets, etc. in other structures.
  • the position of the hidden teeth of the second stator, the stator unit, the second large tooth, the fourth large tooth, or the fourth stator permanent magnet does not necessarily correspond to the position of the first large tooth of the first stator. Stagger a certain distance, as long as the number of pole pairs between the first stator and the second stator is the same.
  • the second stator adopts hidden teeth, a stator unit and/or a structure of surface-attached fourth stator permanent magnets, by arranging on the first large tooth or the third large tooth of the first stator
  • the first winding and the second stator form hidden teeth, stator units and/or surface-attached fourth stator permanent magnets, and no windings are provided.
  • a set of windings multiple sets of stators can be driven to drive the mover to move. Since the use of windings is reduced, the copper loss caused by the windings of the motor can be reduced. In addition, the use of magnetic conductive parts is also reduced, thereby reducing the volume and weight of the motor.
  • the mover 13 includes a mover yoke; the mover yoke corresponds to the surface of the stator assembly to form a plurality of mover small teeth 1311, two adjacent mover small teeth 1311 A small groove for the mover is formed between.
  • the mover 13 includes a mover yoke 131.
  • the mover yoke portion 131 forms a plurality of first mover small teeth 1311 corresponding to the surface of the first stator 11, and a first mover small slot is formed between two adjacent first mover small teeth 1311;
  • the mover yoke portion 131 forms a plurality of second mover small teeth 1312 corresponding to the surface of the second stator 12, and a second mover small slot is formed between two adjacent second mover small teeth 1312.
  • At least part of the mover slot (including the first mover slot and the second mover slot) is provided with a first mover permanent magnet; and
  • the first stator corresponding to the first mover permanent magnet in the small slot of a mover is provided with the first stator permanent magnet corresponding to the second stator corresponding to the first mover permanent magnet in the second mover slot
  • the second stator permanent magnet is provided, and/or the second stator is correspondingly provided with the third stator permanent magnet.
  • the direction of the magnetic field formed by the first mover permanent magnet, the corresponding first stator permanent magnet, the corresponding second stator permanent magnet, and/or the corresponding third stator permanent magnet in the air gap L the same. That is, the first mover permanent magnet in the first mover slot and the corresponding first stator permanent magnet form the same direction of the magnetic field in the air gap L; the first mover permanent magnet in the second mover slot is the same.
  • the direction of the magnetic field formed by the corresponding second stator permanent magnet and/or the corresponding third stator permanent magnet in the air gap L is the same.
  • the first permanent magnet M1 and the second permanent magnet M2 further detailed description is that at least part of the first mover is provided with a third permanent magnet M3 in the slot; and/or at least part of the second mover A fourth permanent magnet M4 is arranged in the small groove. Then the third permanent magnet M3 and the first permanent magnet M1 form the same direction of the magnetic field in the air gap; the second permanent magnet M2 and the fourth permanent magnet M4 form the same direction of the magnetic field in the air gap.
  • the third permanent magnet M3 and the fourth permanent magnet M4 refer to the above-mentioned first permanent magnet M1 and the second permanent magnet M2, which will not be repeated here.
  • the movers 13 when the movers 13 are respectively provided on both sides of the first stator 11, that is, when the first stator 11 includes the third large teeth 113, if the movers located on both sides If the direction of the magnetic field formed by the permanent magnet of the first mover on the first mover in the air gap is opposite, the mover small teeth on the movers on both sides are staggered by half a tooth pitch (linear motor) or pole pitch (rotating motor) respectively; The first mover permanent magnets located on both sides form the same direction of the magnetic field in the air gap, and the mover small teeth on the movers 13 on both sides are aligned.
  • the stator assembly when the stator assembly is provided on both sides of the mover 13 (for example: as shown in FIG. 5, the first stator 11 and the second stator 12 are respectively provided; or as shown in the figure) As shown in 12A, the second stators 12) are respectively provided.
  • the mover 13 may include a plurality of mover magnetic conductive parts 132 arranged at intervals along the moving direction of the mover; a second magnetic conductive part 132 is arranged between two adjacent mover magnetic parts 132. Mover permanent magnet.
  • the mover 13 includes a plurality of mover magnetic conductive parts 132 and a second mover permanent magnet (for example, a fifth permanent magnet M5) arranged at intervals along the moving direction of the mover 13.
  • the above-mentioned Halbach array permanent magnet may include: a middle permanent magnet M51 located in the middle and a corresponding first permanent magnet located on both sides of the middle permanent magnet.
  • the lower permanent magnet M52 of the stator 11 and the upper permanent magnet M53 of the second stator 12 correspond to each other.
  • the second mover permanent magnet and the first stator permanent magnet correspondingly arranged on the first stator; the second stator permanent magnet correspondingly arranged on the second stator; and/or the first stator permanent magnet
  • the direction of the magnetic field formed by the corresponding third stator permanent magnets on the two stators is the same in the air gap.
  • the direction of the magnetic field formed in the air gap by the fifth permanent magnet M5, the first permanent magnet M1, and the second permanent magnet M2 are the same.
  • the volume and weight of the mover can be reduced because the use of the yoke is reduced, thereby reducing the volume and weight of the motor.
  • each mover magnetic conductive portion 132 can be connected into a whole through the mover connecting portion 133, or prefabricated
  • permanent magnets such as the fifth permanent magnet M5
  • the fifth permanent magnet M5 can be embedded in the middle of each mover magnetically conductive part 132, so that the multiple mover magnetically conductive parts 132 are arranged neatly as a whole, reducing the subsequent splicing steps of a single magnetically conductive part .
  • the first stator 11 when the movers 13 are respectively provided on both sides of the first stator 11, that is, the first stator 11 includes the third large teeth 113
  • the magnetic permeable parts 132 on the movers on both sides are staggered by half. Part pitch or pole pitch d; as shown in FIG. 17B, if the magnetic field directions formed by the permanent magnets on both sides of the mover in the air gap are the same, the positions of the mover magnetic portions 132 on the movers 13 on both sides are aligned.
  • the mover 13 may include a surface-mounted permanent magnet (for example: the eighth permanent magnet M8), where the surface-mounted permanent magnet refers to the mover permanent magnet along the mover
  • the directions of movement are arranged in sequence, and the directions of the magnetic fields formed by two adjacent permanent magnets in the air gap are opposite to form a pair of poles.
  • the pole pair of the mover The number is 16.
  • a magnetic permeable ring can be provided in the middle, and each surface-mounted permanent magnet can be attached to both ends of the permeable ring in turn, or a permeable ring can be provided on at least one end, and each surface-mounted permanent magnet can be attached to the permeable ring.
  • the mover 13 includes a plurality of spoke-shaped mover magnetically conductive parts 135 arranged in sequence according to the moving direction of the mover and embedded between two adjacent spoke-shaped mover magnetically conductive parts 135 Between the fifth mover permanent magnet (for example: the ninth permanent magnet M9).
  • each spoke-shaped mover magnetic conductive portion 135 may be pre-fabricated as a whole, or at least one end or any position in the middle may be fixedly connected into a whole through a mover connecting portion, etc.
  • the ninth permanent magnet M9 may be embedded in each In the gap between the spoke-shaped mover magnetically conductive parts 135. It should be noted that the magnetic field directions of every two adjacent ninth permanent magnets M9 are opposite in polarity along the moving direction of the mover, and then every two adjacent ninth permanent magnets M9 form a pair of poles.
  • the magnetic fields of two adjacent ninth permanent magnets M9 have opposite polarities along the moving direction of the mover (for details, refer to the magnetic field direction of the sixth permanent magnet M6 or the seventh permanent magnet M7 in FIG. 22D).
  • the position alignment parts of the first stator 11 and the second stator 12 located on both sides of the mover 13 have the same direction of the magnetic field formed in the air gap, for example: as shown in FIG. 18D,
  • the first permanent magnet M1 on the stator 11 and the second permanent magnet M2 on the second stator 12 that are aligned in the radial direction of the rotating electrical machine form the same direction of the magnetic field in the air gap, and they are staggered by half a pitch or pole.
  • the aligned portions of the first stator 11 and the second stator 12 on both sides of the mover 13 have opposite directions of the magnetic field formed in the air gap (illustration omitted). It should be noted that when the motor includes a plurality of second stators 12, the above description can also be applied to the second stators 12 provided on both sides.
  • first large tooth, second large tooth, third large tooth, and fourth large tooth can be designed as desired.
  • the first large tooth is taken as an example for further explanation.
  • the amount of winding used is reduced, so copper consumption can be saved; in addition, the first large tooth 112 can be added. Therefore, the height of the first large tooth 112 is reduced, so that the thickness of the first stator yoke 111 can be increased, and the mechanical strength of the first stator yoke 111 can be improved.
  • a motor 10 is also provided.
  • the motor 10 may be various types of motors currently or developed in the future with the following structure.
  • the relative movement of the stator and the first mover of the motor may include: a rotating motor (as shown in the figure). 19A or 20A) or linear motor (as shown in Figure 21); taking the flux trend of a rotating motor as an example, it can include axial flux rotating motors (as shown in Figure 20A), radial flux rotating motors ( 19A) or an axial-radial hybrid magnetic flux rotating machine (illustration omitted), etc.
  • the motor can be a motor that converts electrical energy into kinetic energy for output, or it can be a generator that converts kinetic energy into electrical energy for output.
  • the two can be realized by using the same structure.
  • the functions of a generator or a motor can be realized respectively.
  • this specific embodiment will be described in further detail below by taking the motor as an example as a motor.
  • the motor 10 includes: a stator assembly and a mover assembly;
  • the stator assembly includes at least the first stator 11; the mover assembly includes at least two movers;
  • stator in the stator assembly and the mover in the mover assembly are arranged opposite each other, and there is an air gap between the adjacent stators and movers; wherein, at least two movers are respectively arranged on both sides of the first stator 11.
  • the stator assembly includes at least the first stator. It is specified that the subassembly may include only the first stator or include the first stator and a second stator other than the first stator; the mover assembly includes at least two movers, which means that The sub-assembly may include only two movers or any number of movers above two.
  • the relative arrangement of the stator in the stator assembly and the mover in the mover assembly can be that each stator and each mover are arranged relative to each other, or part of the stator and the mover are arranged relative to each other, for example: Two first movers are arranged in parallel on one side of the stator. Preferably, each stator and each mover are arranged oppositely at intervals.
  • Each stator in the stator assembly has the same number of pole pairs; each mover in the mover assembly has the same number of pole pairs;
  • a first winding 14 is provided on the first stator 11.
  • the stator assembly includes the first stator 11; the mover assembly includes the first mover 13' and the second mover 13"
  • the first mover 13' and the second mover 13" are respectively provided on both sides of the first stator 11 as an example for further detailed description.
  • the pole pair of each mover can be correspondingly known according to the number of pole pairs of the winding.
  • each stator having the same number of pole pairs also means that the first stator 11 or the second stator 12 respectively correspond to Both ends of the first mover 13' and the second mover 13" have the same number of pole pairs.
  • each stator and mover By arranging movers on both sides of the stator, each stator and mover have the same number of pole pairs, so each stator and mover have the same frequency, so that at least one stator can drive multiple movers to move.
  • the maximum output of the motor can be increased by setting up multiple layers of movers to overcome the limitation of the saturation of the magnetic flux of a single mover.
  • the first stator acts with the movers on both sides at the same time, which will reduce the unbalanced force of the motor, so that the number of teeth of the large teeth of the first stator or the number of slots between the large teeth can be odd numbers as needed Or an even number, which can improve the flexibility of the cogging ratio.
  • a three-phase motor can use 3 slots, 9 slots, and 15 slots, but it may only use 6 slots, 12 slots, and 18 slots.
  • the number of slots may affect the copper loss and maximum output of the motor. Due to the increased flexibility of the cogging ratio, it can provide more flexibility for the motor design, so as to better understand the copper loss, maximum output and other factors Start with and design a better motor.
  • the motor including at least two mover structures of this embodiment can increase the rigidity of the yoke structure on the mover. , Or increase the volume of other rigid structures of the mover itself, so the mechanical strength of the mover is higher and the motor stability is better.
  • each stator has the same number of small teeth on the surface of the mover; or Each stator corresponds to the mover to form the same number of large teeth and/or hidden teeth.
  • each large tooth or hidden tooth is provided with the same number of small stator teeth; or the same number of independent stator units ( The stator unit can be regarded as teeth), etc.; in one embodiment, it can also refer to having the same number of permanent magnets, etc., which is not limited in this specific embodiment.
  • the same number of small teeth can be formed on the surface of each mover corresponding to the stator, or the same number of small teeth can be formed on each mover or on the surface of each mover corresponding to the stator.
  • the number of pole pairs of each mover in the mover assembly is ensured to be the same for any structure, such as permanent magnets and other existing or future developments, they fall within the protection scope of the embodiments of the present invention.
  • each mover based on the first stator 11 is an example of the structure of each mover based on the first stator 11:
  • stator 12 is collectively referred to as a stator; and the first stator permanent magnet provided on the first stator and/or the second stator permanent magnet, the third stator permanent magnet and/or the second stator permanent magnet provided on the second stator described in this embodiment Or other permanent magnets provided on the stator, such as the fourth permanent magnet, are collectively referred to as stator permanent magnets.
  • the first mover 13' includes a first mover yoke portion 134', and a plurality of third movers are formed on the surface of the first mover yoke portion 134' corresponding to the first stator 11. Mover small teeth 1341', a third mover small groove is formed between two adjacent third mover small teeth 1341'; the second mover 13" includes a second mover yoke 134", in the second mover
  • the yoke portion 134" forms a plurality of fourth mover small teeth 1341" corresponding to the surface of the first stator 11, and a fourth mover small slot is formed between two adjacent fourth mover small teeth 1341".
  • the number of the third mover small teeth 1341' and the fourth mover small teeth 1341" can be made the same.
  • At least part of the third mover's small grooves are provided with third mover permanent magnets and/or at least part of the fourth mover's small grooves are provided with fourth mover permanent magnets.
  • the direction of the magnetic field formed by the permanent magnets of each third mover in the air gap L is the same; the direction of the magnetic field formed by the permanent magnets of each fourth mover in the air gap L is the same.
  • the third mover permanent magnet as the sixth permanent magnet M6, and the fourth mover permanent magnet as the seventh permanent magnet M7 as an example for further detailed description, then each sixth permanent magnet
  • the direction of the magnetic field formed by M6 in the air gap is the same, and the direction of the magnetic field formed by each seventh permanent magnet M7 in the air gap L is the same; in addition, the direction of the magnetic field formed by the sixth permanent magnet M6 in the air gap L is the same as that of the seventh permanent magnet.
  • the direction of the magnetic field formed by M7 in the air gap L can be the same (as shown in FIG. 23A) or opposite (as shown in FIG. 23B).
  • the first stator includes a first surface corresponding to the first mover and a second surface corresponding to the second mover.
  • the first surface and the second surface are respectively formed Corresponding to the first stator small teeth 1211 of the first mover 13' and the second mover 13".
  • the first surface The direction of the magnetic field formed by the first permanent magnet M1 and the sixth permanent magnet M6 in the air gap L is the same; and/or if the first permanent magnet M1 is provided in at least part of the first stator small teeth 1211 on the second surface, the first permanent magnet M1 The direction of the magnetic field formed in the air gap L by the first permanent magnet M1 and the seventh permanent magnet M7 on both sides is the same.
  • the first mover guide on the first mover 13' The magnetic part 134' and the second mover magnetic part 134" on the second mover 13" are staggered by half a tooth pitch (linear motor) or half a pole pitch d (rotary motor); as shown in Figure 23A, further In one embodiment, if the direction of the magnetic field formed by the sixth permanent magnet M6 and the seventh permanent magnet M7 in the air gap is the same, the first mover magnetically permeable portion 134' and the second mover magnetically permeable portion 134" Position alignment.
  • the third mover permanent magnet can be directly attached to the surface of the first mover 13' corresponding to the first stator 11, and the second mover 13" corresponds to the first stator 11.
  • the surface of the stator is directly attached to the permanent magnets of the fourth mover; the number of permanent magnets of the third mover and the permanent magnets of the fourth mover are the same, so that the number of pole pairs of the third mover and the fourth mover are the same.
  • Every two adjacent third mover permanent magnets form a pair of poles; every two adjacent fourth mover permanent magnets form a pair of poles;
  • the direction of the magnetic field formed by the permanent magnets of the mover in the air gap L is opposite, so every two adjacent permanent magnets of the fourth mover form a pair of poles.
  • the third permanent magnet of the mover is used as the sixth permanent magnet. M6; the fourth mover permanent magnet is the seventh permanent magnet M7 as an example for description.
  • the first stator 11 includes a first surface corresponding to the first mover 13' and a second surface corresponding to the second mover 13".
  • first stator The direction of the magnetic field formed in the air gap L by the first stator permanent magnet M1 provided on the first surface of the first stator M1 and the first stator permanent magnet M1 provided on the second surface of the first stator are the same.
  • the direction of the magnetic field formed by the sixth permanent magnet M6 and the seventh permanent magnet M7 of the aligned second mover 13" in the air gap L is the same; if the first stator permanent magnet is arranged on the first surface of the first stator 11
  • the direction of the magnetic field formed in the air gap L between M1 and the first stator permanent magnet M1 arranged on the second surface is opposite, and the direction of the magnetic field formed in the air gap L by the sixth permanent magnet M6 and the aligned seventh permanent magnet M7 are also opposite. (Picture omitted).
  • the third mover permanent magnet and the fourth mover permanent magnet described in each of the above embodiments may be one permanent magnet (as shown in FIG. 22B), multiple permanent magnets, or multiple permanent magnets.
  • the formed array such as the Halbach array (as shown in Figure 22C).
  • the sixth permanent magnet M6 and the seventh permanent magnet M7 are Halbach array permanent magnets directly attached to the surface of the mover, there are two adjacent sixth permanent magnets M6.
  • the auxiliary permanent magnet part can be shared between to enhance the air gap magnetic density.
  • the Halbach array permanent magnet M6 may include a main permanent magnet located in the middle and auxiliary permanent magnets located on both sides of the main permanent magnet, and the auxiliary permanent magnet part may be shared between two adjacent Halbach array permanent magnets M6.
  • the first mover 13' includes a plurality of first spoke-shaped magnetic conductive parts 135' arranged in sequence according to the moving direction of the mover and embedded in two adjacent first spokes.
  • the third mover permanent magnet between the magnetic conductive parts 135', the second mover 13" includes a plurality of second spoke-shaped magnetic conductive parts 135" arranged in sequence according to the moving direction of the mover and embedded in two adjacent second
  • the fourth mover permanent magnet between the spoke-shaped magnetic conductive parts 135" is another embodiment, the first mover 13' includes a plurality of first spoke-shaped magnetic conductive parts 135' arranged in sequence according to the moving direction of the mover and embedded in two adjacent first spokes.
  • the number of the third mover permanent magnets and the fourth mover permanent magnets are the same, so that the third mover and the fourth mover have the same number of pole pairs It should be noted that the magnetic field direction of every two adjacent third mover permanent magnets is opposite to the direction of movement of the mover, then every two adjacent third mover permanent magnets constitute a pair of poles; The magnetic field directions of every two adjacent fourth mover permanent magnets are opposite in polarity along the moving direction of the mover, and then every two adjacent fourth mover permanent magnets form a pair of poles.
  • At least one end or any position in the middle of the first spoke-shaped magnetically conductive portion 135' and the second spoke-shaped magnetically conductive portion 135" may be connected into a whole through the mover connecting portion, or separately prefabricated. As a whole, the motors are arranged neatly as a whole, and the subsequent splicing steps of the single spoke-shaped mover magnetic conductive parts 135', 135" are reduced.
  • the first stator 11 includes a first surface corresponding to the first mover 13' and a second surface corresponding to the second mover 13", if the first surface is provided
  • the polarities of the first stator permanent magnet M1 and the first stator permanent magnet M1 arranged on the second surface are the same, and the direction of the magnetic field of the sixth permanent magnet M6 and the seventh permanent magnet M7 aligned in position are opposite; if the first surface
  • the direction of the magnetic field of the first stator permanent magnet M1 set on the second surface is opposite to that of the first stator permanent magnet M1 set on the second surface, and the polarity of the magnetic field of the sixth permanent magnet M6 and the aligned seventh permanent magnet M7 are the same (omitted Attached).
  • the two sides of at least one mover 13 in the mover assembly are respectively Corresponding to the first stator 11 and the second stator 12 (in addition, when the motor includes multiple second stators, it can also mean that the two sides of a certain mover correspond to the second stator respectively).
  • the mover 13 includes a plurality of mover magnetic conductive parts 132 arranged at intervals along the moving direction of the mover 13, two adjacent ones A second permanent magnet of the mover is arranged between the magnetic conductive parts 132 of the mover. (For example: the fifth permanent magnet M5).
  • the fifth permanent magnet M5 may be one permanent magnet, multiple permanent magnets, or an array composed of multiple permanent magnets, such as a Halbach array.
  • the Halbach array permanent magnet may include: a middle permanent magnet located in the middle The magnet M51 and the lower permanent magnet M52 corresponding to the first stator 11 and the upper permanent magnet M53 corresponding to the second stator 12 located on both sides of the middle permanent magnet.
  • the second mover permanent magnet corresponds to the first stator permanent magnet provided on the first stator, and the second stator permanent magnet and/or second stator corresponding to the second stator are provided.
  • the direction of the magnetic field formed by the corresponding third stator permanent magnets in the air gap is the same.
  • the direction of the magnetic field formed by the fifth permanent magnet M5 and the first permanent magnet M1 and the second permanent magnet M2 in the air gap is the same.
  • the volume and weight of the mover can be reduced because the use of the yoke is reduced, thereby reducing the volume and weight of the motor.
  • each mover's magnetic conductive portion 132 can be connected into a whole through the mover connecting portion 133, or pre-determined It is made into one body, so that the multiple magnetic conductive parts 132 are arranged neatly as a whole, which reduces the subsequent splicing steps of a single magnetic conductive part, and enhances the stability of the mover.
  • the first stator 11 includes N third teeth 113 respectively extending in the direction of the movers 13 on both sides, where N ⁇ 3.
  • the third largest tooth can also be less than three.
  • the N third large teeth 113 can be arranged separately from each other (as shown in FIG. 19B, FIG. 20B, and FIG. 21), or unified by a stator yoke (the drawings are omitted);
  • the three major teeth are arranged separately from each other; or the independent third teeth are connected into one body through the non-magnetically conductive part (the figure is omitted), that is, the two adjacent independent third teeth are fixedly connected through the non-magnetically conductive part Together, so that no magnetic field lines pass through the non-magnetic part between two adjacent third teeth.
  • the non-magnetic part can prevent the stator assembly of the motor from being misaligned or misaligned during the movement of the stator assembly. Loose.
  • the non-magnetically conductive part may be made of any material that cannot be magnetically conductive.
  • the third large tooth 113 includes a first surface corresponding to the first mover 13' and a second surface corresponding to the second mover 13", the first surface and The second surface respectively forms n first stator small teeth, where n ⁇ 2, that is, n is an integer greater than or equal to 2, and a first stator small slot is formed between two adjacent first stator small teeth 1121.
  • n ⁇ 2 that is, n is an integer greater than or equal to 2
  • a first stator small slot is formed between two adjacent first stator small teeth 1121.
  • At least part of the first stator slot of the first surface and/or the second surface is provided with a first stator permanent magnet (for example: the first permanent magnet M1).
  • first permanent magnet M1 may be one permanent magnet, multiple permanent magnets, or an array composed of multiple permanent magnets, such as the Halbach array (as shown in Figs. 22A-22D).
  • the embodiment is not limited.
  • the stator assembly further includes at least one second stator 12.
  • the structure of the second stator 12 is illustrated below:
  • the second stator 12 includes a second stator yoke 121 and N hidden teeth 123 formed on the surface of the second stator yoke 121 corresponding to the mover 13.
  • the hidden tooth can be provided on one side of the second stator (when one side corresponds to the mover) or on both sides of the second stator (when both sides correspond to the mover).
  • n second stator small teeth are formed on each hidden tooth; a second stator small slot is formed between two adjacent second stator small teeth.
  • second stator permanent magnets are provided in at least part of the second stator slots; the second stator permanent magnets on the same second stator corresponding to the same mover have the same direction of the magnetic field formed in the air gap.
  • the second stator 12 when the mover 13 is provided on both sides of the second stator 12, the second stator 12 includes a movement along the mover 13 N independent stator units 124 arranged in sequence in the direction, where N ⁇ 3.
  • the independent stator units 124 may mean that the stator units 124 are arranged at a certain distance from each other (as shown in FIG. 12A, 12D or 12F); or the independent stator units 124 are connected together by a non-magnetic part. (Picture omitted).
  • each stator unit 124 includes n stator magnetic permeable parts 1241 arranged at intervals along the moving direction of the mover, and n stator magnetic permeable parts.
  • a third stator permanent magnet is arranged between the parts 1241, where n ⁇ 2;
  • the movers 13 provided on both sides of the second stator 12 are respectively provided with first mover permanent magnets and/or second mover permanent magnets corresponding to the second stator 12;
  • the direction of the magnetic field formed by the magnet and the first mover permanent magnet and/or the second mover permanent magnet in the air gap is the same.
  • At least one end or any position in the middle of the n stator magnetic conductive parts of each stator unit is integrated by the stator connection part, or is prefabricated into one body, so that the plurality of stator magnetic conductive parts are arranged as a whole It is neat, which reduces the subsequent splicing steps of a single stator magnetization part, and enhances the mechanical strength of the motor.
  • the second stator With the above structure, since the use of the yoke is reduced, the volume and weight of the second stator can be reduced, thereby reducing the volume and weight of the motor.
  • the second stator 12 may include a second stator yoke 121 and a second stator yoke.
  • the portion 121 extends toward the mover 13 to form N second large teeth 122; further, in one embodiment, a second winding 17 is provided on the second large teeth 122.
  • the second winding 17 and the first winding 14 have the same number of pole pairs, so that the number of pole pairs of each stator is the same, and the number of pole pairs of each mover is also the same.
  • each second large tooth 122 forms n second stator small teeth 1211 corresponding to the surface of the mover 13; a second stator small slot is formed between two adjacent second stator small teeth 1211.
  • At least part of the second stator slots are provided with second stator permanent magnets; the second stator permanent magnets on the same stator corresponding to the same mover have the same direction of the magnetic field formed in the air gap.
  • the second stator 12 when the mover 13 is provided on both sides of the second stator 12, the second stator 12 may also include N fourth large teeth 114 respectively extending in the direction of the mover located on both sides of the second stator; further, in one embodiment, the second winding 17 may be provided on the fourth large teeth 114.
  • a plurality of second stator small teeth 1211 are formed on both sides of each fourth large tooth 114 corresponding to the surface of the mover 13; a second stator small tooth 1211 is formed between two adjacent second stator small teeth 1211. Stator slots.
  • At least part of the second stator small slots are provided with second stator permanent magnets; the second stator permanent magnets located on the same stator and corresponding to the same mover have the same direction of the magnetic field formed in the air gap.
  • the second stator 12 includes a second stator.
  • the attached tenth permanent magnet M10 may correspond to the first stator A large tooth or a third large tooth forms multiple independent units.
  • a plurality of first large teeth 112 corresponding to the first stator 11 form multiple independent units.
  • the direction of the magnetic field formed by the fourth stator permanent magnet of each unit in the air gap is aligned with the direction of the magnetic field formed by the first stator or other second stators (if there are multiple second stators) in the air gap.
  • the tenth permanent magnet M10 is arranged in sequence, etc., as long as the first stator 11 and the second stator 12 have the same number of pole pairs.
  • the directions of the magnetic fields formed in the air gap by two adjacent permanent magnets in the tenth permanent magnet M10 are opposite, so two adjacent permanent magnets form a pair of poles, and the first large tooth 112 or the third large tooth 112
  • Each first stator small tooth 1121 at the end of the tooth 113 forms a pair of poles with the first small slot or the first permanent magnet M1 located in the first small slot.
  • the number of tenth permanent magnets M10 is adjusted so that the first stator 11 and the second stator 12 have the same number of pole pairs, or multiple second stators have the same number of pole pairs.
  • more than two second stators 12 and/or more than three movers 13 may also be provided.
  • the motor includes two movers 13 and two second stators 12; as shown in Figure 12B, the motor includes a second stator 12 and two movers 13; as shown in Figure 12A, 12D , 12F, 14A or 14B, the motor includes three second stators 12 and three movers 13.
  • the motor may also include stators and movers that exist in the same, similar or other structural forms, as long as each of the motors is guaranteed Both the mover and the stator having the same number of pole pairs belong to the protection scope of the present invention.
  • the embodiment of the present invention also provides a device (the drawings are omitted), and the device includes the motor described in the above embodiment.
  • the device may be an automated device or a semi-automated device.
  • automated or semi-automated equipment can be applied to various fields, such as industry, education, nursing, entertainment, or medical treatment.
  • robots such as manipulators or humanoid robots
  • robots can be regarded as advanced automation equipment.
  • a car can also be regarded as an automated device.
  • the device may also be a power generating device.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

Moteur et dispositif comprenant ledit moteur. Le moteur comprend un ensemble stator et un ensemble rotor ; l'ensemble stator comprend un premier stator (11) et au moins un second stator (12), et l'ensemble rotor comprennent au moins un rotor (13) ; des stators (11, 12) dans l'ensemble stator et le rotor (13) dans l'ensemble rotor sont disposés de manière opposée à des intervalles, et il y a des espaces d'air entre des stators adjacents (11, 12) et le rotor (13) ; chaque stator a le même nombre de paires de pôles ; et un premier enroulement (14) est disposé sur le premier stator (11). Au moyen de la solution technique, la fourniture d'une pluralité de stators surmonte le problème selon lequel la saturation de flux magnétique d'un seul stator est limitée, améliore la sortie maximale du moteur, et réduit le degré de protection actuel.
PCT/CN2020/129747 2019-11-27 2020-11-18 Moteur et dispositif comprenant ledit moteur WO2021104123A1 (fr)

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DE112020005359.8T DE112020005359T5 (de) 2019-11-27 2020-11-18 Motor und Vorrichtung, die den Motor umfasst

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CN201911179316.0A CN111049341A (zh) 2019-11-27 2019-11-27 一种电机及包括该电机的设备
CN201911179316.0 2019-11-27

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Publication number Priority date Publication date Assignee Title
CN111049341A (zh) * 2019-11-27 2020-04-21 南方电机科技有限公司 一种电机及包括该电机的设备
CN118074459A (zh) * 2024-04-22 2024-05-24 南通大任永磁电机制造有限公司 多模态电磁动力系统及其运行模式

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US20100259112A1 (en) * 2009-04-13 2010-10-14 Korea Electrotechnology Research Institute Structure for linear and rotary electric machines
CN202856573U (zh) * 2012-08-03 2013-04-03 东南大学 一种多自由度的开关磁阻电机
CN204131350U (zh) * 2014-07-11 2015-01-28 华中科技大学 双定子单绕组游标永磁电机
CN105515313A (zh) * 2016-02-29 2016-04-20 东南大学 一种磁链并联双转子复合电机
CN105811696A (zh) * 2016-04-27 2016-07-27 大连名阳实业有限公司 混合励磁型复合磁通切换永磁电机
CN106602823A (zh) * 2017-02-23 2017-04-26 武汉理工大学 一种双爪极定子聚磁式游标电机
CN111049341A (zh) * 2019-11-27 2020-04-21 南方电机科技有限公司 一种电机及包括该电机的设备

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Publication number Priority date Publication date Assignee Title
US20100259112A1 (en) * 2009-04-13 2010-10-14 Korea Electrotechnology Research Institute Structure for linear and rotary electric machines
CN202856573U (zh) * 2012-08-03 2013-04-03 东南大学 一种多自由度的开关磁阻电机
CN204131350U (zh) * 2014-07-11 2015-01-28 华中科技大学 双定子单绕组游标永磁电机
CN105515313A (zh) * 2016-02-29 2016-04-20 东南大学 一种磁链并联双转子复合电机
CN105811696A (zh) * 2016-04-27 2016-07-27 大连名阳实业有限公司 混合励磁型复合磁通切换永磁电机
CN106602823A (zh) * 2017-02-23 2017-04-26 武汉理工大学 一种双爪极定子聚磁式游标电机
CN111049341A (zh) * 2019-11-27 2020-04-21 南方电机科技有限公司 一种电机及包括该电机的设备

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