WO2014036883A1 - 永磁叠层电机 - Google Patents
永磁叠层电机 Download PDFInfo
- Publication number
- WO2014036883A1 WO2014036883A1 PCT/CN2013/081635 CN2013081635W WO2014036883A1 WO 2014036883 A1 WO2014036883 A1 WO 2014036883A1 CN 2013081635 W CN2013081635 W CN 2013081635W WO 2014036883 A1 WO2014036883 A1 WO 2014036883A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- axial
- permanent magnet
- rotor
- rotating shaft
- Prior art date
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 239000000758 substrate Substances 0.000 claims description 36
- 238000009423 ventilation Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 13
- 239000013585 weight reducing agent Substances 0.000 description 4
- 238000013022 venting Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- 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
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2796—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the rotor face a stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
Definitions
- the present invention relates to a permanent magnet motor, and more particularly to a permanent magnet laminated motor having an axial magnetic circuit. Background technique
- the structure of the generator is cylindrical, the cylindrical rotor and the cylindrical stator are coaxial, and the output is convenient, and the armature is generally used as a stator.
- the specific power of this type of generator (power delivered per unit of motor weight) is approximately 0.2 kW/kg, and that for aerospace generators is up to 0.5 kW/kg.
- the size of such existing electric machines is usually large, and it is often required to consume a large amount of raw materials in manufacturing, and the utilization rate of the silicon steel sheets is not high, and thus it is uneconomical; for example, the motors described in the patent documents ZL871083191 and ZL201110104458.8, Among them, the rotor magnets are attached to both sides of the rotor disk, which greatly increases the volume of the motor; Moreover, the conventional stator windings are wound in the wire grooves on the silicon steel sheet, which reduces the utilization of the silicon steel sheet. rate.
- the present invention is directed to a permanent magnet laminated motor to reduce the weight of the motor and reduce the volume of the motor, thereby increasing the specific power.
- a permanent magnet laminated motor according to the present invention includes:
- N+1 rotor units and n spacer rings fitted on the outer edge of the rotating shaft and axially compressed are alternately fastened in sequence;
- two fastening sleeves are respectively attached to the outer edges of the rotating shaft and respectively adhered to the outermost two a magnetically permeable ring on the outer side of the rotor unit;
- stator units respectively correspondingly disposed on one outer edge of the spacer ring, each of the stator units having the same axial air gap between the adjacent rotor units, and n the stator units
- a plurality of mounting screws are axially fixedly connected to the two end plates;
- each of the rotor units comprises:
- a rotor disk having 2p axial through holes uniformly distributed on one end of the end face; 2p magnets respectively tightly fitted into the axial through hole, the magnetization directions of the 2p magnets are parallel to the rotation axis, and the polarities of 2p of the magnets are alternately arranged along the index circle;
- the corresponding magnets of the n+1 of the rotor units are aligned with each other along the extending direction of the rotating shaft, and the magnetic lines of force of the mutually aligned magnets are in the same direction, and n, p are natural numbers.
- each of the stator units includes:
- stator frame composed of a pair of stator substrates arranged in parallel and mirror images of each other, sleeved on an outer edge of the spacer ring; sandwiched between a pair of the stator substrates and uniformly distributed on the index circle 2p cores;
- a coil is wound around the outer edge of each of the cores.
- the surface of the stator substrate is provided with 2p stepped holes which are evenly distributed on the indexing circle for inserting a core around which the coil is wound.
- the outer edge of the core is set as a stepped surface, and an outer diameter of both ends of the core is smaller than an outer diameter of the middle portion, and is small with a stepped hole on the stator substrate.
- the inner diameter is matched, the coil is wound on the middle portion of the iron core, and the axial thickness of the coil is matched with the axial thickness of the middle portion of the iron core, and the outer diameter of the coil is larger than the stepped hole on the stator substrate
- the inner diameter matches.
- one end of the rotating shaft is provided with a plate which is perpendicular to the rotating shaft and integrally formed, and the outer edge of the other end of the rotating shaft is provided with a thread, the magnetic conducting ring, the rotor unit and the spacing
- the ring is axially compressed integrally with the backing plate by a lock nut.
- the end surface of the backing plate is provided with a plurality of axial lining ventilation holes uniformly distributed on the same circumference;
- the end surface of the rotor disk is provided with a plurality of axial rotor vents uniformly distributed on the same circumference;
- the end surface of the magnetic flux ring is provided with a plurality of axial magnetic flux vents uniformly distributed on the same circumference;
- the end surface of the spacer ring is provided with a plurality of spacer ring axial ventilation holes uniformly distributed on the same circumference, and the outer edge of the spacer ring is provided with a plurality of spacer ring diameters communicating with the axial ventilation holes of the spacer ring. Ventilation hole;
- a plurality of axial end plate vent holes are evenly distributed on the end faces of the end plates.
- a plurality of substrate mounting holes for penetrating the mounting screw are provided at an edge of the stator substrate, and a pair of stator substrates in each of the stator units are The substrate mounting hole is concentrically glued with an in-frame gasket.
- a plurality of end plate mounting holes for penetrating the mounting screw are provided at an edge of the end plate, and the stator unit and the end plate are provided with the Concentric spacers for the end plate mounting holes.
- the magnet and the iron core have a cylindrical shape, a polygonal prism shape, an elliptical cylindrical shape or a sector cylindrical shape.
- the specific power of the motor of the invention is much larger than that of the ordinary drum motor and the disc motor, and the weight of the motor is reduced, the volume is reduced, the utilization rate of the silicon steel sheet is improved, and the consumption of the structural material is effectively reduced.
- the self-cooling effect of the present invention is good; especially for material saving and weight reduction of large motors (especially for large wind turbines), the motor of the present invention is particularly suitable for vehicles.
- Figure 1 is an axial cross-sectional view of a permanent magnet laminated motor of the present invention
- Figure 2 (a) is a front elevational view showing the structure of the rotor unit of the present invention
- Figure 2 (b) is an axial sectional view of the rotor unit of the present invention
- Figure 3 (a) is a front view showing the structure of a stator substrate in the present invention.
- Figure 3 (b) is an axial cross-sectional view of the stator substrate of the present invention.
- Figure 4 (a) is a front elevational view showing the structure of the stator unit of the present invention.
- Figure 4 (b) is an axial sectional view of the stator unit of the present invention.
- Figure 5 (a) is a front view showing the structure of a core and a coil in the present invention.
- Figure 5 (b) is an axial sectional view of the iron core and the coil of the present invention.
- Figure 6 (a) is a front view showing the structure of the spacer ring of the present invention.
- Figure 6 (b) is a bottom plan view showing the structure of the spacer ring of the present invention.
- Figure 6 (c) is a cross-sectional view showing the structure of the spacer ring perpendicular to the axis in the present invention
- Figure 6 (d) is an axial cross-sectional view of the spacer ring of the present invention.
- Figure 7 (a) is a front view showing the structure of a magnetic flux ring in the present invention.
- Figure 7 (b) is an axial cross-sectional view of the magnetic flux ring of the present invention.
- Figure 8 (a) is a front view showing the structure of the end plate of the present invention.
- Figure 8 (b) is a cross-sectional view taken along line A-A of Figure 8 (a);
- Figure 8 (c) is a front elevational view of the structure in which the end plates of the present invention are rotated through 90;
- Figure 8 (d) is a cross-sectional view taken along line B-B of Figure 8 (c);
- Figure 9 (a) is a side view showing the structure of a hollow shaft in the present invention.
- Figure 9 (b) is an axial cross-sectional view of the hollow shaft of the present invention.
- Figure 10 (a) - (c) is a schematic view showing the stagger of each stator unit core in Embodiment 1 of the present invention, wherein Figure 10 (a) shows the position of the core on the first stator unit and the position of the magnet of the rotor unit. The difference is set to 0°, Figure 10 (b) The position of all the cores on the second stator unit is rotated by 15 ° along the indexing circle. Figure 10 (c) shows that the positions of all the cores on the third stator unit are rotated by 30° along the indexing circle. detailed description
- the present invention is a permanent magnet laminated motor, which mainly comprises: two end plates 15 and 16 arranged in parallel, rotatably disposed at two ends by two bearings 2, 3
- the rotating shaft 1 between the plates 15 and 16 is alternately fastened to n+1 rotor units and n spacer rings which are sleeved on the outer edge of the rotating shaft 1, and two fastening sleeves are arranged on the outer edge of the rotating shaft 1 and respectively abut the most
- the outer side of the outer two rotor units, the magnetic rings 6, 7 and the n respectively correspondingly arranged on the outer edge of a spacer ring, wherein each stator unit has the same relationship with the adjacent rotor unit
- the axial air gap 40, and the edge of the stator unit is axially fixedly connected to the two end plates 15, 16 by a plurality of mounting screws, n being a natural number.
- One end of the rotating shaft 1 is provided with a supporting plate 4 which is formed integrally with the rotating shaft 1 and is integrally formed.
- the end surface of the supporting plate 4 is provided with a plurality of axial louvers venting holes uniformly distributed on the same circumference; FIG. 9( a )
- three backing plate vents 87, 88, 89 are provided on the backing plate 4; as shown in Fig. 9(b), in order to reduce the weight, the rotating shaft 1 in this embodiment is hollow. .
- the magnetically permeable ring 6, 7, the rotor unit 11, 12, 13, 14 and the spacer ring 8, 9, 10 can be made by tightening the lock nut 5
- the axial compression is a solid unit with the magnetically permeable ring 6 abutting against the plate 4.
- the axial sway of each of the rotor units 11, 12, 13, 14 during rotation can be minimized, so that the air gap can be reduced to increase the air gap magnetic flux density;
- Another important function of the plate 4 and the lock nut 5 is to prevent the respective stator units 37, 38, 39 and the spacer rings 8, 9, 10 from sliding axially on the rotating shaft 1; in particular, due to the magnet-to-stator iron on the rotor The suction on both sides of the core is impossible to balance completely, so this axial sliding is inevitable and must be prevented.
- stator unit and the rotor unit are attracted together, and the rotor is integrated (ie, the sum of all moving parts, including The rotor unit, spacer ring, magnetically permeable ring, shaft, bearing and lock nut) will not rotate.
- the outer edge of the rotating shaft 1 is provided with a keyway 90, and the magnetic conducting rings 6, 7, the rotor units 11, 12, 13, 14 and the spacer rings 8, 9, 10 also have corresponding keyways (Fig.
- the rotating shaft 1 is provided with rotating shaft steps 91 and 92 respectively respectively against the inner edges of the bearings 2 and 3, and the function is to prevent the rotating shaft 1 axial sliding between the bearings 2, 3, in addition, because the bearings 2, 3 are subjected to a certain axial force, Therefore, deep groove bearings 2, 3 are used.
- each rotor unit includes: a rotor disk 25 and 2p tightly mounted on the rotor disk 25 and evenly distributed on the index circle 49.
- a magnet wherein the magnet-mounted rotor disk 25 is made of a low-density insulating material or a high-resistance material having a high mechanical strength, such as an epoxy plate, which is in the shape of a disk, and has a shaft hole and a keyway in the center for the shaft 1
- the magnetization direction of 2p magnets is parallel to the rotating shaft 1
- the polarity of 2p magnets Arranged along the indexing circle 49, the corresponding magnets on each rotor unit are aligned with each other in the direction of the rotating shaft 1, and the magnetic lines of the opposite magnets are in the same direction, and p is a natural number.
- the shape of the magnet may be a cylindrical shape, a polygonal prism shape, an elliptical cylindrical shape or a sector cylindrical shape.
- the present invention shortens the magnetic circuit and reduces leakage as compared with the prior art in which the magnet is attached to both sides of the substrate (for example, patent documents ZL871083191, ZL201110104458.8). Magnetic, and the magnetoresistance and the volume of the motor are reduced. At the same time, the rotor substrate of the prior art is too thin, and the strength is insufficient, and if it is too thick, the weight is too heavy, and the present invention does not have such a problem.
- each of the rotor disk 25 has a plurality of axial rotor vents uniformly distributed on the same circumference (the circumference is located in the index circle 49), as shown in Fig. 2 (a). Rotor vents 17, 18, 19 in the middle.
- the magnetically permeable rings 6, 7 abut against the outer sides of the two rotor units 11, 14, respectively, with a shaft hole and a keyway in the center for fixed connection with the rotating shaft 1, the diameter of which completely covers the rotor unit
- the upper magnets are used; the magnetically permeable rings 6, 7 are made of a highly magnetically permeable material, and the magnetically permeable rings 6, 7 are automatically attached to the rotor units 11, 14 at both ends due to the attraction of the magnets.
- the magnetic flux rings 6, 7 can cause magnetic lines of force to return through the magnetically permeable ring between adjacent magnets to form a closed loop of low reluctance, so that the reluctance is mainly generated in the air gap 40 between the stator unit and the rotor unit,
- the magnetic circuit is very short and the magnetic resistance is small. That is to say, in the circuit of the magnetic field line of the present invention, except for the working air gap, the magnetic lines of force pass through the material of low reluctance, which is compared with the prior art.
- the magnetic flux ring which causes the magnetic field lines to return in the air or the stator, significantly increases the magnetic flux density in the air gap (in the prototype of the present invention, the measured magnetic flux density in the working air gap is greater than 1.2T , this is a very high value).
- the end faces of the magnetic rings 6, 7 are also provided with a plurality of axial magnetic flux vents evenly distributed on the same circumference (the circumference is located in the index circle 49), as shown in FIG. (a)
- the magnetic flux ring vents 71, 72, 73 are also provided with a plurality of axial magnetic flux vents evenly distributed on the same circumference (the circumference is located in the index circle 49), as shown in FIG. (a)
- the magnetic flux ring vents 71, 72, 73 are also provided with a plurality of axial magnetic flux vents evenly distributed on the same circumference (the circumference is located in the index circle 49), as shown in FIG. (a)
- the magnetic flux ring vents 71, 72, 73 are also provided
- the spacer rings 8, 9, 10 are made of low-density plastic or epoxy plates in the shape of a pie, with a shaft hole and a keyway in the center for fixed connection with the shaft 1; the spacer rings 8, 9, 10 function to make A fixed space is left between adjacent two rotor units for inserting the stator units 37, 38, 39; likewise, for ventilation and weight reduction, in the spacer ring (Fig.
- a plurality of spacer ring axial vents 84, 85, 86 are provided on the end face uniformly distributed on the same circumference, and a plurality of spacer rings are provided on the outer edge of the spacer ring Spacer vents 84, 82, 83 are interconnected by axial vents 84, 85, 86.
- each stator unit includes: a stator frame composed of a pair of stator substrates arranged in parallel and mirror images of each other (such as the stator substrates 31 , 32 of the stator unit 37 in FIG. 1 , The stator substrates 33, 34 of the stator unit 38, the stator substrates 35, 36) of the stator unit 39, 2p iron cores sandwiched between the stator substrates and evenly distributed on the index circle 49, and wound around the respective cores The coil of the edge, where p is a natural number.
- each stator substrate is a polygon having a circular hole 30 in the center, and the diameter of the circular hole 30 is slightly larger than the outer diameter of the spacer rings 8, 9, 10, and the spacer ring 8, 9, 10 does not rub against the stator frame when rotating.
- the axial thickness of the stator elements 37, 38, 39 is less than the axial thickness of the spacer rings 8, 9, 10 (the axial thickness of the spacer ring is equal to the sum of the axial thickness of the stator unit plus the thickness of the double air gap 40) So that there is an air gap 40 between the stator unit and the adjacent rotor unit, the size of the air gap 40 is not to rub the stator unit when rotating; the iron core corresponds to the magnet on the rotor unit, the iron core The axis is parallel to the axis of rotation 1.
- the stator substrate 31 is exemplified as a square structure, and the material is an insulator having high mechanical strength or a high resistivity material;
- the surface of the 31 is provided with eight stepped holes 50 for inserting the core 46 and the coil 41, which are evenly distributed on the indexing circle 49; substrate mounting holes 26, 27, 28 are respectively disposed at four corners of the stator substrate 31. 29.
- Four in-frame washers are bonded concentrically with the substrate mounting holes between a pair of stator substrates in each stator unit (such as the in-frame washer 61 of the stator unit 37 in FIG.
- stator units can be fastened by the four mounting screws (represented by the mounting screws 74, 75 in Fig. 1) through the substrate mounting holes and the above-mentioned frame washers. .
- each core Since the ends of each core are in close proximity to the magnet, and the magnet suction at both ends may not be completely equal, each core may be subjected to a large axial force, which may easily cause axial turbulence of the core, and such ⁇ Action must also be prevented.
- ⁇ Action In order to prevent the axial movement of the iron core, as shown in FIGS.
- the outer edge of the iron core 46 is set as the stepped surface 20
- the outer diameter of both ends of the iron core 46 is smaller than the outer diameter of the middle portion, and matches the smaller inner diameter of the stepped hole 50 on the stator substrate
- the coil 41 is wound on the middle portion of the outer diameter of the iron core 46, and the coil 41
- the axial thickness is matched with the axial thickness of the middle section, and the outer diameter of the coil 41 is matched with the larger inner diameter of the stepped hole 50 on the stator substrate, thereby effectively preventing the axial movement of the iron core and also providing the stator frame. Sufficient axial stiffness.
- the iron cores 46, 47, and 48 are all made of columnar silicon steel cores, and the iron core is highly utilized in the magnetic circuit, that is, all the iron cores can participate in magnetic conduction; to minimize eddy currents.
- the plane of the silicon steel sheet is parallel to the axis of rotation 1, ie The normal of the plane of the steel sheet is perpendicular to the rotating shaft 1; in addition, in order to provide the largest possible winding space, the coils 41, 42, 43 are directly wound on the cores 46, 47, 48, and only between the coil and the iron core Separated by a thin insulating layer (not shown), the coil and the core of the present invention are not only greatly improved as compared with the prior art in which the coil is wound in a radial groove of the cored steel sheet.
- the utilization rate of the silicon steel sheet also simplifies the processing technology of the silicon steel sheet, reduces the scrap rate and manufacturing cost of the silicon steel sheet; meanwhile, the stator frame composed of the stator substrate replaces the skeleton of the conventional stator structure, thereby reducing the motor
- the weight and volume, and the number of coil turns are obtained as much as possible, which ensures the axial bending strength of the stator unit and facilitates heat dissipation.
- the electromotive force outputted from the tip A1 and the tip A8 is 2p times the electromotive force in the single coil, and the sum of the electromotive forces in the S coils, and the internal resistance is also the sum of the internal resistances of the 8 coils.
- the stator unit of the above structure can achieve the following four purposes: sufficient winding space; weight reduction; easy ventilation and cooling; sufficient axial bending strength.
- three stator units 37, 38, 39 are used, and it is possible to form three-phase electric power which is normally different from each other by 120°.
- the positions of the stepped holes 50 of the stator units 37, 38, 39 are shifted from each other (the position of the substrate mounting holes on each stator substrate is good), as shown in FIG. 10, the subunit is set.
- the positions of all the iron cores 46 on the 37 overlap with the magnet positions of the rotor unit, that is, the difference in position between the two on the index circle 49 is 0°, and the positions of all the iron cores 47 of the stator unit 38 are rotated along the index circle 49.
- the end plates 15, 16 are made of a lightweight material, and the end faces of the end faces are provided with bearing seats 55 for inserting the bearings 2, 3, so that the rotating shaft 1 is at the end plate 15,
- the bearing housing 55 of the 16 rotates;
- the end plates 15, 16 are also provided with a plurality of axial end plate venting holes, such as the end plate venting holes 51, 52, 53, 54 in Fig. 8 (a).
- End plate mounting holes 56, 57, 58, 59 corresponding to the positions of the substrate mounting holes 26, 27, 28, 29 of the stator unit are provided at the four corners of the end plates 15, 16 by using four mounting screws (Fig.
- the upper mounting screws 74, 75 are representative), the eight long washers (represented by the long washers 64, 65 in Fig. 1) between the stator units 37, 39 and the end plates 15, 16 respectively, the stator units 37, 38 8 inter-frame washers between 39 (represented by the inter-frame washers 66, 67 in Figure 1), and 8 mounting nuts (represented by mounting nuts 76, 77, 78, 79 in Figure 1),
- the stator unit, the end plate, the mounting screw, the inner frame washer, the inter-frame washer and the long washer are locked into a solid whole, and the motor has a polygonal prism shape and no outer casing, which has a cylindrical outer casing in the prior art.
- the position of the iron core on each of the above stator units is in a straight line parallel to the rotating shaft 1 in the axial direction, so that a single-phase electric power can be obtained; but the cogging torque of this structure is large, and the stator unit is not as good as the starting unit of the motor. It is convenient to stagger.
- the rotor unit rotates to generate single-phase or multi-phase alternating current in the coil of the stator unit; when used as a motor, the multi-phase alternating current is supplied to the coil of the stator unit, and the rotor unit rotates synchronously.
- the advantage of the motor of the invention is that the power to weight ratio is large, the volume is small, the mechanism is compact, and the utilization rate of the silicon steel sheet exceeds 95%.
- the power-to-weight ratio of the generator is 200 watts/kg, and the aerospace generator can reach 500 watts/kg.
- the actual power-to-weight ratio of the present invention has exceeded 800 watts/kg, which not only saves copper and iron, but also Sea, land and air traffic is particularly meaningful.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015528854A JP6068644B2 (ja) | 2012-09-04 | 2013-08-16 | 永久磁性積層型モータ |
US14/425,952 US9812937B2 (en) | 2012-09-04 | 2013-08-16 | Permanent magnet laminated motor with axial spacer ring vents |
EP13835831.2A EP2894771B1 (en) | 2012-09-04 | 2013-08-16 | Permanent magnet laminated motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210324131.6 | 2012-09-04 | ||
CN201210324131.6A CN102801264B (zh) | 2012-09-04 | 2012-09-04 | 永磁叠层电机 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014036883A1 true WO2014036883A1 (zh) | 2014-03-13 |
Family
ID=47200269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/081635 WO2014036883A1 (zh) | 2012-09-04 | 2013-08-16 | 永磁叠层电机 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9812937B2 (zh) |
EP (1) | EP2894771B1 (zh) |
JP (1) | JP6068644B2 (zh) |
CN (1) | CN102801264B (zh) |
WO (1) | WO2014036883A1 (zh) |
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GB2538516A (en) * | 2015-05-19 | 2016-11-23 | Greenspur Renewables Ltd | Generator |
WO2017007443A1 (ru) * | 2015-07-06 | 2017-01-12 | Анатолий Максимович АЛЕЕВ | Электрогенератор |
JP2018506958A (ja) * | 2015-02-26 | 2018-03-08 | オーラフ ベッチャー | ディスクロータ及び軸流型回転電気機械 |
EP3189584B1 (en) * | 2014-09-02 | 2019-11-06 | Cicilia, Beremundo Elsio | Synchronous rotation motor or generator provided with diverse rotors and/or stators |
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JP2006524057A (ja) | 2003-04-21 | 2006-10-26 | エペイウス バイオテクノロジーズ, インコーポレイテッド | 疾患を処置するための方法および組成物 |
CN102801264B (zh) * | 2012-09-04 | 2015-02-11 | 魏乐汉 | 永磁叠层电机 |
FR2996379B1 (fr) * | 2012-10-01 | 2014-10-17 | Ddis | Generateur electrique a multiples machines electriques |
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GB2544275B (en) | 2015-11-09 | 2022-02-16 | Time To Act Ltd | Cooling means for direct drive generators |
PL229549B1 (pl) * | 2016-01-18 | 2018-07-31 | Ireneusz Piskorz | Generator synchroniczny, wielosegmentowy |
CN105634230A (zh) * | 2016-03-18 | 2016-06-01 | 山东理工大学 | 永磁与电磁混合励磁恒压轴向发电机 |
JP2017198965A (ja) * | 2016-04-28 | 2017-11-02 | 日本電産株式会社 | 回転駆動装置 |
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CN102801264A (zh) | 2012-11-28 |
JP2015528682A (ja) | 2015-09-28 |
EP2894771A1 (en) | 2015-07-15 |
EP2894771A4 (en) | 2016-05-25 |
US20150229193A1 (en) | 2015-08-13 |
US9812937B2 (en) | 2017-11-07 |
EP2894771B1 (en) | 2017-11-08 |
CN102801264B (zh) | 2015-02-11 |
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