CN114678987A - Magnetic pole module fixing device and rotor and permanent magnet wind driven generator comprising same - Google Patents
Magnetic pole module fixing device and rotor and permanent magnet wind driven generator comprising same Download PDFInfo
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- CN114678987A CN114678987A CN202210128144.XA CN202210128144A CN114678987A CN 114678987 A CN114678987 A CN 114678987A CN 202210128144 A CN202210128144 A CN 202210128144A CN 114678987 A CN114678987 A CN 114678987A
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- 230000000452 restraining effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 210000003205 muscle Anatomy 0.000 description 18
- 230000001174 ascending effect Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 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
- H02K1/2786—Outer rotors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a magnetic pole module fixing device, a rotor comprising the same and a permanent magnet wind driven generator, wherein the magnetic pole module fixing device comprises a convex part and a first concave part, and the convex part and the first concave part are respectively arranged on the side surfaces, facing each other, of two adjacent magnetic pole modules in the circumferential direction of the rotor; the first concave part comprises a groove which is inwards concave from the circumferential side surface of the first concave part far away from the corresponding magnetic pole module; to two adjacent magnetic pole modules in rotor circumferential direction, the boss of one of them magnetic pole module and the recess block of another magnetic pole module. According to the invention, the two adjacent magnetic pole modules in the circumferential direction of the rotor are mutually restrained to limit the movement of the magnetic pole modules in the radial direction of the rotor, no special requirement is made on the shape of the magnetic pole module fixing groove, and the magnetic pole module fixing groove can be in a shape easy to process, so that the processing difficulty and cost of the magnetic pole module fixing groove are reduced.
Description
Technical Field
The invention relates to the field of wind power generation, in particular to a magnetic pole module fixing device and a rotor and a permanent magnet wind driven generator comprising the same.
Background
The operating environment of a wind generating set is often a high-humidity and high-salt environment, especially an offshore wind generating set, the operating condition is relatively severe, and in order to prevent the magnetic steel from being oxidized and rusted, the current common practice is to encapsulate the magnetic steel in a housing made of a metal non-magnetic material (stainless steel) and a substrate made of a metal magnetic material (low-carbon steel plate) to form a magnetic pole module.
The patent document with the publication number of CN102916502B discloses a method for fixing a magnetic pole module on the inner wall of a rotor, specifically, a plurality of T-shaped grooves are processed on the inner wall of the rotor, the magnetic pole module is implemented into a shape matched with the T-shaped grooves, the T-shaped grooves extend to the hub side from the brake disc side of the rotor and are terminated at a certain distance from the hub side, so that the T-shaped grooves are closed at the hub side and open at the brake disc side, and the magnetic pole module can be easily inserted into a groove or moved out of the groove when needed. The T type groove plays the guide effect when the installation on the one hand, and on the other hand prevents that the motor from appearing the unusual removal that takes place to drop or circumference when moving in the time of the magnetic pole module.
In the method, the T-shaped groove needs to be machined on the inner surface of the rotor house, the rotor house is large in diameter, a large-scale high-precision numerical control gantry turning and milling composite machine tool needs to be used for machining, the machining difficulty of the T-shaped groove is high, the machining requirement and precision on the T-shaped groove are high, the machine tool is long in occupied time, and the cost is high.
Disclosure of Invention
The invention aims to overcome the defects of high processing difficulty and high cost of a magnetic pole module fixing groove for limiting the magnetic pole module to move along the radial direction of a rotor in the prior art, and provides a magnetic pole module fixing device, a rotor comprising the magnetic pole module fixing device and a permanent magnet wind driven generator.
The invention solves the technical problems through the following technical scheme:
a magnetic pole module fixing device is used for fixing a magnetic pole module on a rotor room of a rotor and comprises a convex part and a first concave part, wherein the convex part and the first concave part are respectively arranged on the side faces, facing each other, of two adjacent magnetic pole modules in the circumferential direction of the rotor;
the convex part comprises a boss which protrudes outwards from the circumferential side surface of the magnetic pole module, and the first concave part comprises a groove which is recessed inwards from the first concave part far away from the circumferential side surface of the corresponding magnetic pole module;
For two adjacent magnetic pole modules in the circumferential direction of the rotor, the boss of one magnetic pole module is clamped with the groove of the other magnetic pole module, and the groove is used for limiting the boss of the other magnetic pole module to move in the radial direction of the rotor.
In this scheme, the block through boss and recess realizes following the connection of two adjacent magnetic pole modules of rotor circumferential direction, and the boss can with the recess at two ascending lateral wall butts of rotor radial direction to restrict the removal of two magnetic pole modules in rotor radial direction each other. This scheme restricts the removal of magnetic pole module in the radial ascending side of rotor through drawing the system each other along two adjacent magnetic pole modules of rotor circumference direction, and it restricts the removal of magnetic pole module in radial ascending side through processing T type groove in the rotor room to compare in the tradition, and this scheme does not have special requirement to the shape of magnetic pole module fixed slot, and the shape of easily processing can be adopted to magnetic pole module fixed slot, for example rectangle etc to reduce the processing degree of difficulty and the cost of magnetic pole module fixed slot.
Preferably, the groove penetrates through the rotor along both ends of the rotor axis direction.
In this scheme, above-mentioned setting makes in the boss can follow the recess and insert the recess at the ascending opening at both ends of rotor axis direction, improves the flexibility of assembly.
Preferably, the length of the boss and the groove in the rotor axis direction is the same as the length of the magnetic pole module in the rotor axis direction.
In this scheme, the area of contact of two adjacent magnetic pole modules on rotor circumferential direction can be improved to above-mentioned setting, guarantees that each axial position of two magnetic pole modules can both interconnect, improves joint strength.
Preferably, the magnetic pole fixing device further comprises a circumferential limiting component which is used for limiting the movement of the magnetic pole module in the circumferential direction of the rotor.
Preferably, the circumferential limiting component comprises a plurality of fixing ribs arranged at intervals in the circumferential direction of the rotor, the fixing ribs extend in the axial direction of the rotor, and the fixing ribs are connected with the magnetic pole modules.
In this scheme, provide a circumference restriction subassembly, restrict the removal of magnetic pole module in rotor circumference direction through fixed muscle.
Preferably, one side of the fixing rib in the radial direction of the rotor is provided with the rotor room of the rotor, and the other side is provided with the convex part and the first concave part.
In this scheme, because bellying and first depressed part are installed on the rotor as a whole with the magnetic pole module usually, the aforesaid sets up and need install fixed muscle earlier and install the combination whole after on the rotor room again, can realize fixed muscle and rotor room integrated into one piece for the alternating electromagnetic force that the magnetic pole module received can transmit whole rotor room, guarantees the stability that the magnetic pole module is connected with the rotor room, improves the life of magnetic pole module. In addition, the fixed rib is installed firstly, so that the fixed rib can play a role in positioning when the whole combination is installed, and the assembling efficiency is improved.
Preferably, the protruding portion and the first recessed portion face one surface of the fixing rib, and second recessed portions are arranged on the other surface of the fixing rib and are clamped with the fixing rib.
In this scheme, fixed muscle card is gone into in the second depressed part to can with the circumference side butt of magnetic pole module, with the removal of restriction magnetic pole module in rotor circumference direction.
Preferably, a magnetic pole module fixing groove for accommodating the magnetic pole module is formed between two adjacent fixing ribs, and the side surface of the magnetic pole module in the circumferential direction of the rotor is abutted to the fixing ribs.
In this scheme, the setting can restrict the removal of magnetic pole module in rotor circumference direction through fixed muscle on the one hand. On the other hand, in the motor operation process, the alternating electromagnetic force that the magnetic pole module bore can transmit for fixed muscle, guarantees the stability that magnetic pole module and rotor room are connected, improves the life of magnetic pole module.
Preferably, the cross-sectional shape of the magnetic pole module fixing groove is a quadrangle.
In this scheme, the processing of magnetic pole module fixed slot can be simplified to tetragonal magnetic pole module fixed slot, reduces the processing degree of difficulty and the cost of magnetic pole module fixed slot, improves machining efficiency.
Preferably, the two sides of the magnetic pole module along the circumferential direction of the rotor are respectively provided with a convex part and a first concave part.
In this embodiment, since the protruding portion and the first recessed portion are generally mounted on the rotor together with the magnetic pole module as a whole, the above arrangement enables the rotor to be integrated into a single shape, thereby improving the efficiency of production and assembly.
A rotor comprising a pole module fixture as described above.
In this scheme, magnetic pole module fixing device is used for fixing the magnetic pole module on the rotor room.
A permanent magnet wind generator comprising a rotor as described above.
In this scheme, magnetic pole module fixing device is used for fixing the magnetic pole module on the rotor room of permanent magnet wind power generator rotor.
The positive progress effects of the invention are as follows: the connection of two adjacent magnetic pole modules in the circumferential direction of the rotor is realized through the clamping of the lug boss and the groove, and the lug boss can be abutted against two side walls of the groove in the radial direction of the rotor so as to mutually limit the movement of the two magnetic pole modules in the radial direction of the rotor. Compared with the traditional method of limiting the movement of the magnetic pole modules in the radial direction by processing a T-shaped groove on a rotor house, the method has no special requirement on the shape of the magnetic pole module fixing groove, and the magnetic pole module fixing groove can adopt a shape which is easy to process, such as a rectangle, and the like, so that the processing difficulty and the cost of the magnetic pole module fixing groove are reduced.
Drawings
Fig. 1 is a schematic top view of a part of a rotor according to an embodiment of the present invention.
FIG. 2 is a schematic top view of a partial rotor house according to an embodiment of the invention.
Fig. 3 is a schematic top view of a magnetic pole module assembly according to an embodiment of the invention.
Description of reference numerals:
Convex part 3
Fixing rib 5
Magnetic pole module fixing groove 6
Limiting groove 72
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
The embodiment provides a permanent magnet wind driven generator, including the rotor, as shown in fig. 1, the rotor includes rotor room 1, magnetic pole module 2 and magnetic pole module fixing device, and magnetic pole module fixing device is connected with magnetic pole module 2 for on being fixed to rotor room 1 with magnetic pole module 2, can not drop from rotor room 1 easily at permanent magnet wind driven generator operation in-process in order to guarantee magnetic pole module 2, improve the stability of use.
As shown in fig. 1 to 3, the magnetic pole module fixing device includes a protruding portion 3 and a first recessed portion 4, the protruding portion 3 and the first recessed portion 4 are respectively disposed on the sides of two adjacent magnetic pole modules 2 facing each other in the circumferential direction of the rotor, and one magnetic pole module 2 and the protruding portion 3 and/or the first recessed portion 4 mounted thereon constitute a magnetic pole module combination. The present embodiment restricts the movement of the two magnetic pole modules 2 in the rotor radial direction by the convex portions 3 engaging with the adjacent first concave portions 4.
As shown in fig. 3, the projecting portion 3 includes a boss 31 projecting outward from the circumferential side surface of the magnetic pole module 2, and the first recessed portion 4 includes a groove 41 recessed inward from the first recessed portion 4 away from the circumferential side surface of the corresponding magnetic pole module 2. For two adjacent magnetic pole modules 2 in the rotor circumferential direction, the boss 31 of one magnetic pole module 2 is engaged with the groove 41 of the other magnetic pole module 2, and the groove 41 is used for limiting the movement of the boss 31 of the other magnetic pole module 2 in the rotor radial direction. The circumferential side surface of the magnetic pole module 2 refers to the side surface of the magnetic pole module 2 in the circumferential direction of the rotor, the circumferential side surface of the first recessed portion 4 refers to the side surface of the first recessed portion 4 in the circumferential direction of the rotor, and the magnetic pole module 2 corresponding to the first recessed portion 4 refers to the magnetic pole module 2 on which the first recessed portion 4 is mounted.
In the present embodiment, the connection between two adjacent magnetic pole modules 2 in the rotor circumferential direction is realized by the engagement between the boss 31 and the groove 41, and since the notch of the groove 41 faces the rotor circumferential direction, two side walls of the groove 41 are located on both sides of the groove 41 in the rotor radial direction, the boss 31 can abut against the two side walls of the groove 41 to restrict the movement of the two magnetic pole modules 2 in the rotor radial direction from each other.
This embodiment restricts the removal of magnetic pole module 2 in the radial direction of rotor through drawing each other along two adjacent magnetic pole modules 2 of rotor circumferential direction, and it restricts the removal of magnetic pole module 2 in the radial direction through processing T type groove on rotor room 1 to compare in the tradition, and this embodiment does not have special requirement to the shape of magnetic pole module fixed slot 6, and magnetic pole module fixed slot 6 can adopt the shape of easily processing, for example rectangle etc. from the processing degree of difficulty and the cost that reduces magnetic pole module fixed slot 6.
The magnetic pole module 2 comprises a permanent magnet, a substrate 21 and a shell cover 22, the substrate 21 and the shell cover 22 enclose a shell, and the permanent magnet is located in the shell. The protruding portions and the first recessed portions in this embodiment are formed integrally with the base plate, and both ends of the base plate 21 in the rotor circumferential direction extend outward beyond both circumferential side faces of the case cover 22 to form the protruding portions 3 and the first recessed portions 4. In other alternative embodiments, the protruding portion 3 and the first recessed portion 4 may be separately produced and mounted on the base plate 21 or the cover 22.
Further, the length of the boss 31 and the groove 41 in the rotor axis direction is the same as the length of the magnetic pole module 2 in the rotor axis direction, so that the contact area of two adjacent magnetic pole modules 2 in the rotor circumferential direction is increased, the axial positions of the two magnetic pole modules 2 can be connected with each other, and the connection strength is increased.
In other alternative embodiments, the length of the boss 31 and the groove 41 in the rotor axis direction may be designed to be other values, but it is necessary to be equal to or less than the length of the magnetic pole module 2 in the rotor axis direction to avoid interference with another magnetic pole module 2 adjacent in the rotor axis direction.
As shown in fig. 1 and 2, the magnetic pole fixing device further includes a circumferential restraining member for restraining the movement of the magnetic pole module 2 in the rotor circumferential direction. Circumferential direction restriction subassembly in this embodiment includes a plurality of fixed muscle 5 that set up at rotor circumferential direction interval, and fixed muscle 5 extends along rotor axis direction, and fixed muscle 5 is connected with magnetic pole module 2, restricts the removal of magnetic pole module 2 in rotor circumferential direction through fixed muscle 5.
The fixing rib 5 and the rotor room 1 in this embodiment are integrally formed, the rotor room 1 of the rotor is provided on one side of the fixing rib 5 in the radial direction of the rotor, and the convex portion 3 and the first concave portion 4 are provided on the other side. The fixed ribs 5 are installed on the rotor room 1 in advance compared with the magnetic pole module combination, and can play a role in guiding the magnetic pole module combination in the process of installing the magnetic pole module combination, so that the assembling efficiency is improved. In addition, because fixed muscle 5 and rotor room 1 integrated into one piece, fixed muscle 5 is connected with magnetic pole module 2 again, therefore fixed muscle 5 can transmit whole rotor room 1 with the alternating electromagnetic force that magnetic pole module 2 received, guarantees the stability that magnetic pole module 2 and rotor room 1 are connected, improves magnetic pole module 2's life.
In other alternative embodiments, the fixing ribs 5 may also be fixed to the rotor house 1 by welding or fastening.
As shown in fig. 3, the second recessed portions 71 are provided on both surfaces of the protruding portions 3 and the first recessed portions 4 facing the fixing ribs 5, and the second recessed portions 71 are engaged with the fixing ribs 5. The fixing ribs 5 are caught in the second recessed portions 71 so as to be capable of abutting against the circumferential side faces of the magnetic pole module 2 to restrict the movement of the magnetic pole module 2 in the rotor circumferential direction.
Specifically, as shown in fig. 3, the second recessed portion 71 is located on the side of the protruding portion 3 and the first recessed portion 4 toward the rotor house 1 in the rotor radial direction, and both ends of the base plate 21 in the rotor circumferential direction are recessed toward the side away from the rotor house 1 in the rotor radial direction to form the second recessed portion 71, and the protruding portion 3 and the first recessed portion 4 are protruded due to the second recessed portion 71 being recessed. As shown in fig. 1, after the convex portions 3 and the first concave portions 4 of two adjacent magnetic pole modules 2 in the rotor circumferential direction are engaged, the second concave portions 71 at the positions corresponding to the convex portions 3 and the second concave portions 71 at the positions corresponding to the fixing ribs 5 are combined to form the limit grooves 72, and the limit grooves 72 are engaged with the fixing ribs 5, thereby limiting the movement of the magnetic pole modules 2 in the rotor circumferential direction.
As shown in fig. 2, a magnetic pole module fixing groove 6 for accommodating the magnetic pole module 2 is formed between two adjacent fixing ribs 5, and the side surface of the magnetic pole module 2 in the rotor circumferential direction abuts against the fixing ribs 5. Specifically, the magnetic pole module fixing grooves 6 in the present embodiment are formed by milling grooves in the side surface of the rotor room 1 adjacent to the air gap, so that one fixing rib 5 is formed at each end of any one of the magnetic pole module fixing grooves 6 in the circumferential direction of the rotor.
In other alternative embodiments, the pole module fixing groove 6 is not limited to be formed by milling a groove on the side of the rotor adjacent to the air gap, and the fixing rib 5 may be fixed to the rotor room 1 by welding or fastening to enclose the pole module fixing groove 6.
Magnetic pole module fixed slot 6 equals single magnetic pole module 2 along the ascending width of rotor circumference side along rotor circumference side to make two sides of magnetic pole module 2 in rotor circumference side all can with fixed 5 butts of muscle, improve fixed muscle 5 and to magnetic pole module 2's circumference limiting displacement, fixed muscle 5 also can play the guide effect in magnetic pole module 2 installation, improves assembly efficiency. In the operation process of the permanent magnet wind driven generator, alternating electromagnetic force borne by the magnetic pole module 2 can be transmitted to the fixing rib 5 and then transmitted to the whole rotor room 1, so that the stability of connection between the magnetic pole module 2 and the rotor room 1 is ensured, and the service life of the magnetic pole module 2 is prolonged.
However, in consideration of dimensional errors and assembly difficulties, in alternative embodiments, the width of the magnetic pole module fixing groove 6 in the rotor circumferential direction is slightly greater than the width of a single magnetic pole module 2 in the rotor circumferential direction, so that the magnetic pole module 2 can be inserted into the magnetic pole module fixing groove 6 with relative ease. At the in-process of permanent magnet wind power generator operation, receive the inertia effect, according to the direction of rotation of rotor, one of them side of magnetic pole module 2 in rotor circumferential direction can with fixed muscle 5 butt to can transmit the alternating electromagnetic force that magnetic pole module 2 bore for fixed muscle 5, and then transmit for rotor room 1 wholly, guarantee the stability that magnetic pole module 2 and rotor room 1 are connected, improve magnetic pole module 2's life.
As shown in fig. 2, the cross-sectional shape of the magnetic pole module fixing groove 6 in this embodiment is rectangular, that is, the magnetic pole module fixing groove 6 is a straight groove, and the fixing rib 5 is a rectangular parallelepiped structure extending along the rotor axis direction. Compare in T type groove, the magnetic pole module fixed slot 6 processing step of rectangle is simple, and the processing degree of difficulty and cost are lower relatively, reduce the handling capacity to rotor room 1, improve the utilization ratio of 1 steel sheet in rotor room, reduce the time that occupies the lathe, have reduced the matching precision requirement of magnetic pole module 2 with magnetic pole module fixed slot 6 simultaneously to improve the machining efficiency of magnetic pole module fixed slot 6.
In other alternative embodiments, the cross-sectional shape of the magnetic pole module fixing groove 6 is not limited to a rectangle, and other quadrilateral shapes which are easy to process can be adopted, so that the processing difficulty caused by the magnetic pole module fixing groove 6 with other complex shapes such as a T-shaped groove and a dovetail-shaped groove is avoided.
Since the width of the pole module fixing groove 6 in the rotor circumferential direction in the present embodiment is equal to the width of a single pole module 2 in the rotor circumferential direction, the pole module fixing groove 6 does not have enough space in the rotor circumferential direction for the pole module 2 to move, so that the boss 31 can be inserted into the groove 41 from the circumferential side of the pole module 2. As shown in fig. 3, the grooves 41 in the present embodiment penetrate through at both ends in the rotor axis direction, so that the bosses 31 can be inserted into the grooves 41 from the openings at both ends of the grooves 41 in the rotor axis direction, improving the flexibility and feasibility of assembly.
As shown in fig. 1 and 3, in the present embodiment, the shapes of the plurality of magnetic pole module combinations are the same, and both sides of each magnetic pole module 2 in the circumferential direction of the rotor are respectively provided with a convex portion 3 and a first concave portion 4. Because the magnetic pole module combination is usually produced as a whole or assembled and then installed on the rotor house 1, the rotor uses the magnetic pole module combination with one shape, and on one hand, only the magnetic pole module combination with one shape needs to be processed or assembled, so that the production efficiency is improved, and the production cost is reduced. On the other hand, the technical personnel need not distinguish which kind of shape's magnetic pole module combination need be used in the assembling process, improves assembly efficiency.
In other alternative embodiments, for two adjacent magnetic pole modules 2 in the rotor circumferential direction, one of the magnetic pole modules 2 may be provided with the protrusions 3 on both sides in the rotor circumferential direction, and the other magnetic pole module 2 may be provided with the first recesses 4 on both sides in the rotor circumferential direction. Or, for two adjacent magnetic pole modules 2 in the rotor circumferential direction, the two sides of the two magnetic pole modules 2 in the rotor circumferential direction may be provided with the protruding portion 3 and the first recessed portion 4, and the protruding portion 3 of one of the magnetic pole modules 2 corresponds to the recessed portion of the other magnetic pole module 2.
In other alternative embodiments, the rotor of the present embodiment may be used in other permanent magnet machines in addition to permanent magnet wind generators.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.
Claims (12)
1. A magnetic pole module fixing device is used for fixing a magnetic pole module on a rotor room of a rotor and is characterized by comprising a convex part and a first concave part, wherein the convex part and the first concave part are respectively arranged on the side faces, facing each other, of two adjacent magnetic pole modules in the circumferential direction of the rotor;
the first concave part comprises a groove which is inwards concave from the first concave part far away from the circumferential side surface corresponding to the magnetic pole module;
for two adjacent magnetic pole modules in the circumferential direction of the rotor, the boss of one magnetic pole module is clamped with the groove of the other magnetic pole module, and the groove is used for limiting the movement of the boss of the other magnetic pole module in the radial direction of the rotor.
2. The pole module fixing device according to claim 1, wherein the groove is perforated at both ends in the rotor axis direction.
3. The pole module fixture of claim 1 wherein the length of the boss and the recess in the direction of the rotor axis is the same as the length of the pole module in the direction of the rotor axis.
4. The pole module fixture of claim 1, further comprising a circumferential restraining component for restraining movement of the pole module in a circumferential direction of the rotor.
5. The pole module fixing device of claim 4, wherein the circumferential limiting member comprises a plurality of fixing ribs arranged at intervals in the circumferential direction of the rotor, the fixing ribs extending in the direction of the rotor axis, and the fixing ribs are connected with the pole module.
6. The pole module fixing device according to claim 5, wherein the fixing rib is provided with the rotor room of the rotor on one side in a radial direction of the rotor, and the protrusion and the first recess on the other side.
7. The pole module fixing device of claim 6, wherein a second recess is formed in each of the protrusion and the first recess facing the fixing rib, and the second recess is engaged with the fixing rib.
8. The pole module fixing device according to claim 6, wherein a pole module fixing groove for receiving the pole module is formed between adjacent two of the fixing ribs, and a side surface of the pole module in a rotor circumferential direction abuts against the fixing rib.
9. The pole module fixing device according to claim 8, wherein the cross-sectional shape of the pole module fixing groove is a quadrangle.
10. The pole module fixing device according to any one of claims 1 to 9, wherein the pole module is provided with a convex portion and a first concave portion on both sides in the circumferential direction of the rotor, respectively.
11. A rotor, characterized in that the rotor comprises a pole module fixing device according to any one of claims 1-10.
12. A permanent magnet wind generator characterized in that it comprises a rotor according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210128144.XA CN114678987A (en) | 2022-02-11 | 2022-02-11 | Magnetic pole module fixing device and rotor and permanent magnet wind driven generator comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210128144.XA CN114678987A (en) | 2022-02-11 | 2022-02-11 | Magnetic pole module fixing device and rotor and permanent magnet wind driven generator comprising same |
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| Publication Number | Publication Date |
|---|---|
| CN114678987A true CN114678987A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210128144.XA Pending CN114678987A (en) | 2022-02-11 | 2022-02-11 | Magnetic pole module fixing device and rotor and permanent magnet wind driven generator comprising same |
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| CN (1) | CN114678987A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355277A (en) * | 2008-06-02 | 2009-01-28 | 北京中科三环高技术股份有限公司 | Permanent magnetism magnetic pole component for high-power permanent magnet motor |
| CN106253520A (en) * | 2016-08-16 | 2016-12-21 | 山西北方机械制造有限责任公司 | A kind of multipole direct-drive permanent magnet synchronous motor rotor structure device |
| CN110011443A (en) * | 2019-04-11 | 2019-07-12 | 浙江大学 | The magnetic pole fixing device and permanent-magnetic wind driven generator of permanent-magnetic wind driven generator |
| CN110380535A (en) * | 2019-07-11 | 2019-10-25 | 浙江大学 | Magnetic pole mould group, rotor room, rotor assembly and magneto |
| CN113316880A (en) * | 2019-01-22 | 2021-08-27 | 三菱电机株式会社 | Rotor of rotating electric machine and method for assembling rotor of rotating electric machine |
-
2022
- 2022-02-11 CN CN202210128144.XA patent/CN114678987A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355277A (en) * | 2008-06-02 | 2009-01-28 | 北京中科三环高技术股份有限公司 | Permanent magnetism magnetic pole component for high-power permanent magnet motor |
| CN106253520A (en) * | 2016-08-16 | 2016-12-21 | 山西北方机械制造有限责任公司 | A kind of multipole direct-drive permanent magnet synchronous motor rotor structure device |
| CN113316880A (en) * | 2019-01-22 | 2021-08-27 | 三菱电机株式会社 | Rotor of rotating electric machine and method for assembling rotor of rotating electric machine |
| CN110011443A (en) * | 2019-04-11 | 2019-07-12 | 浙江大学 | The magnetic pole fixing device and permanent-magnetic wind driven generator of permanent-magnetic wind driven generator |
| CN110380535A (en) * | 2019-07-11 | 2019-10-25 | 浙江大学 | Magnetic pole mould group, rotor room, rotor assembly and magneto |
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