CN107070033B - Rotor and method for manufacturing the same - Google Patents
Rotor and method for manufacturing the same Download PDFInfo
- Publication number
- CN107070033B CN107070033B CN201710315965.3A CN201710315965A CN107070033B CN 107070033 B CN107070033 B CN 107070033B CN 201710315965 A CN201710315965 A CN 201710315965A CN 107070033 B CN107070033 B CN 107070033B
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- magnetic pole
- rotor
- carrier board
- box
- module
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title description 9
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- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
- 239000003566 sealing material Substances 0.000 claims description 18
- 230000004927 fusion Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 3
- 230000009972 noncorrosive effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a magnetic pole module, a rotor and a manufacturing method thereof. The magnetic pole module includes: a carrier plate including a stepped portion formed by recessing a lower portion of the carrier plate inward in an outer circumferential direction of the carrier plate; a pole case in a box shape with an open top, the pole case being fixed to the stepped portion of the carrier plate; a magnet sealed in the pole case. According to the present invention, the magnetic pole module can be miniaturized, so that the installation and transportation of the magnetic pole module can be facilitated.
Description
Technical field
The present invention relates to motor fields, more particularly, are related to a kind of rotor and its manufacturing method.
Background technique
Low-speed big-diameter generator (for example, wind-driven generator) is made of stator and rotor.In large-scale generator, rotor
Including rotor rim and the magnet to magnetize being mounted and fastened in rotor rim.
The magnetic pole of large-scale generator is longer, only has one piece of mounting plate, leads to that the weight of magnet assembly is big, yield rate
It is low, in addition, more demanding to the fixed equipment for fixed magnet component.
In addition, needing to process hole in rotor rim, and utilize screw and spiral shell in order to which magnet to be fixed in rotor rim
Magnet is installed in rotor rim by mother, or needs to process complicated slot in rotor rim, is then assembled to magnet
In rotor rim.The above-described method assembled magnet or be installed to rotor rim needs to carry out rotor rim complicated
Processing, installation process are complicated and time-consuming.In addition, causing largely to increase motor using the mounting means of screw and nut
Weight.
In addition, in the prior art, also being secured magnets in rotor rim using press strip fixed magnet.However,
This mounting means leads to high production cost and will increase the weight of motor due to having used press strip.
Summary of the invention
The purpose of the present invention is to provide a kind of magnetic pole module of achievable miniaturization and its manufacturing method and can realize
Light-weighted, inexpensive rotor and its manufacturing method.
According to an aspect of the present invention, a kind of magnetic pole module is provided, the magnetic pole module includes: carrier board, the carrier
Plate includes stage portion, and the stage portion is by inwardly concaving the lower part of the carrier board along the peripheral direction of the carrier board
And it is formed；Magnetic pole box, the magnetic pole box are in the open box-shape in top, and the magnetic pole box is fixed to the described of the carrier board
Stage portion；Magnet is sealed in the magnetic pole box.
Optionally, the side wall of the magnetic pole box can be fixed to the stage portion of the carrier board, the institute of the magnetic pole box
The thickness for stating side wall may be less than or equal to the width of the stage portion.
Optionally, the carrier board may include the first side surface and the second side surface relative to each other along a first direction with
And the third side surface and fourth side surface relative to each other along the second direction vertical with the first direction, wherein described
The bottom surface of first side surface and second side surface and the carrier board in obtuse angle, the third side surface and the described 4th
Side surface and the bottom surface of the carrier board are rectangular.
Optionally, the magnetic pole box can have a shape corresponding with the carrier board, including bottom, along the first party
Opposite the first side wall and second sidewall and along second direction third side wall relative to each other and the 4th side to each other
Wall, wherein the first side wall and second sidewall and the bottom in obtuse angle, the third side wall and the 4th side wall and institute
It is rectangular to state bottom.
Optionally, the magnetic pole module may also include the sealing material by magnet sealed in the magnetic pole box, described close
Closure material can be filled between the magnet and the magnetic pole box and between the magnet and the carrier board.
According to another aspect of the present invention, a kind of rotor is provided, the rotor includes: rotor rim, including mounting surface；
Magnetic pole module as described above, the magnetic pole module are welded to the mounting surface of the rotor rim.
Optionally, the magnetic pole module of the magnetic pole module arow arrangement, the arow arrangement is parallel to the rotor
The axial direction of magnetic yoke or with the axial direction of the rotor rim at predetermined angular, between the magnetic pole module of arow arrangement
It may be provided with predetermined gap.
Optionally, the rotor may also include the coating for covering the magnetic pole module, and the coating may include resin.
According to another aspect of the present invention, a kind of manufacturing method of magnetic pole module is provided, the manufacturing method includes: preparation
Carrier board, the carrier board include stage portion, and the stage portion is by making the lower part of the carrier board along the carrier board
Peripheral direction is inwardly concaved and is formed；Magnetic pole box is prepared, the magnetic pole box is in the open box-shape in top；Magnet sealed is existed
In the magnetic pole box；The magnetic pole box is fixed to the stage portion of the carrier board.
Optionally, the manufacturing method, which may also include, is welded to the stage portion for the magnetic pole box by fusion welding.
Optionally, the manufacturing method may additionally include and the magnetic pole box is welded to the stage portion under specific environment,
The specific environment refer to relative humidity≤60%, temperature be 10 DEG C~30 DEG C, air pressure constant, non-corrosive gas ring
Border.
Optionally, the manufacturing method may also include the weldering that anti-corrosion material is applied to the magnetic pole box Yu the carrier board
It connects around region.
Optionally, by applying between the magnet and the magnetic pole box and between the magnet and the carrier board
Sealing material is by the magnet sealed in the magnetic pole box.
According to another aspect of the present invention, a kind of manufacturing method of rotor is provided, the manufacturing method includes: by continuous
Magnetic pole module as described above is welded to the mounting surface of rotor rim by fusion welding or interrupted fusion welding.
Optionally, the manufacturing method may also include that is welded to described in the rotor rim by the magnetic pole module
After in mounting surface, the coating for covering the magnetic pole module is formed, the coating may include resin.
The magnetic pole module of embodiment according to the present invention can minimize magnetic pole module, so as to convenient for magnetic pole module
Installation and transport.In addition, magnetic pole module according to the present invention can realize effective sealing of magnet, prevent magnet by corrosive medium etc.
Influence.
The rotor of embodiment according to the present invention, by the way that magnetic pole module is welded to rotor rim, installation is easy, and saves work
When, cold air is easy to circulate, and reduces the weight of motor.
In addition, magnetic pole module is welded to rotor rim, the press strip of fixed magnet is used for without setting, therefore save
The cost of press strip, and the weight of motor will not be caused to increase because press strip is arranged.
Detailed description of the invention
By the detailed description carried out below in conjunction with the accompanying drawings, above and other objects of the present invention, features and advantages will
It becomes more fully apparent, in which:
Fig. 1 is the schematic diagram for showing the magnetic pole module of embodiment according to the present invention；
Fig. 2 is the schematic diagram for showing the carrier board of magnetic pole module of Fig. 1；
Fig. 3 is the enlarged drawing for showing the portion P of carrier board of Fig. 2；
Fig. 4 is the schematic diagram for showing the magnetic pole box of Fig. 2；
Fig. 5 is the schematic diagram for showing a part of the mounting surface of rotor of an exemplary embodiment of the present invention；
Fig. 6 is the sectional view for showing the line A-A interception along Fig. 5.
In the accompanying drawings: 1000 be rotor, and 100 be magnetic pole module, and 110 be carrier board, and 120 be magnetic pole box, and 130 be magnet,
140 be sealing material, and 111 be upper surface, and 112 be lower surface, and 113 be the first side surface, and 114 be the second side surface, and 115 be platform
Rank portion, 121 be bottom, and 122 be the first side wall, and 123 be second sidewall, and 124 be third side wall, and 125 be the 4th side wall, and L1 is to turn
The axis of sub- magnetic yoke, L2 are the center line of secondary series magnetic pole module, and G is gap, and 300 be coating.
Specific embodiment
Hereinafter, it will be described in detail with reference to the accompanying drawings exemplary embodiment.In the accompanying drawings, for the sake of clarity, can amplify
Shape, size of component etc..
For convenience of description, this can with reference to the accompanying drawings in tool face azimuth retouched using " upper surface ", " lower surface " etc.
State the surface of device.It should be understood that " upper surface " will become " lower surface ", " following table if the device in figure is reversed
Face " will become " upper surface ".
Next, with reference to Fig. 1 to the magnetic pole module of Fig. 3 detailed description of the present invention embodiment.
Fig. 1 is the schematic diagram for showing the magnetic pole module of embodiment according to the present invention, and Fig. 2 is the magnetic pole module for showing Fig. 1
Carrier board schematic diagram, Fig. 3 is the enlarged drawing for showing the portion P of carrier board of Fig. 2, and Fig. 4 is to show the magnetic pole box of Fig. 2 to show
It is intended to.
An exemplary embodiment of the present invention, magnetic pole module 100 may include carrier board 110, fixed to carrier board 110
Magnetic pole box 120 and the magnet 130 being sealed in magnetic pole box 120.
An exemplary embodiment of the present invention, for example, carrier board 110 can be formed by steel or other permeability magnetic materials.Separately
Outside, carrier board 110 can be formed by a single piece or be pressed together by multiple thin slice/sheet materials and formed.
An exemplary embodiment of the present invention, carrier board 110 can be in substantially rectangular shape, and can have in its thickness
Opposite upper surface 111 and lower surface 112, the first side surface 113 and second relative to each other on its first direction on direction
Side surface 114 and third side surface (not shown) relative to each other in the second direction vertical with first direction and the 4th side
Surface (not shown).
The upper surface of carrier board 110 can be arc, to paste with the mounting surface for the rotor rim that next will be described
It is combined, so as to which carrier board 110 to be more firmly fixed to the mounting surface of rotor rim, gap is installed without generating.
The lower surface of carrier board 110 can be plane, so as between the magnet 130 in carrier board 110 and magnetic pole box 120
It is formed sealing material 140 (will be described later), without generating additional gap.
The first side surface 113 and the second side surface 114 of carrier board 110 can be inclined-plane, specifically, carrier board 110
First side surface 113 and the second side surface 114 can be respectively with lower surface 112 at obtuse angles, it is preferable that can be at equal blunt
Angle, that is to say, that the section that carrier board 110 intercepts along a first direction is isosceles figure.
Optionally, the third side surface and the 4th side surface of carrier board 110 can be upright surface, that is, carrier board 110
Third side surface and the 4th side surface can be with the lower surface 112 of carrier board 110 at right angle.
An exemplary embodiment of the present invention, carrier board 110 may be provided with stage portion 115, and stage portion 115 is by making to carry
The lower part of body plate 110 inwardly concaves along the peripheral direction of carrier board 110 and is formed.In particular, by making carrier board 110
Side surface (that is, the first side surface 113, the second side surface 114, third side surface and the 4th side surface) is inwardly equably recessed pre-
Fixed width degree is W-shaped at stage portion 115.
For example, stage portion 115 can be by removing carrier board along the peripheral direction of carrier board 110 in the lower part of carrier board 110
110 a part and formed.Magnetic pole box 120 can be the hollow box-shape for example surrounded by thin plate, the top of magnetic pole box 120
Portion is opened wide, so as to which magnet 130 to be put into magnetic pole box 120.
Preferably, the size of magnetic pole box 120 can be greater than the size of magnet 130, and have similar with the shape of magnet 130
Shape, for example, can be square, rectangle, trapezoidal or irregular shape.
Preferably, magnetic pole box 120 can have shape corresponding with the shape of carrier board 110.Similarly, magnetic pole box 120
It may include bottom 121, along a first direction the first side wall 122 and second sidewall 123 relative to each other and along second direction
Third side wall 124 and the 4th side wall 125 relative to each other.The first side wall 122 and second sidewall 123 of magnetic pole box 120 can divide
Not with bottom 121 at obtuse angle, it is preferable that can be at equal obtuse angle, that is to say, that magnetic pole box 120 intercepted along a first direction
Section is isosceles figure.The third side wall 124 and the 4th side wall 125 of magnetic pole box 120 can with the bottom 121 of magnetic pole box 120 at
Right angle.Preferably, the first side wall 122 and obtuse angle formed by bottom 121 and the first side surface 113 with it is blunt formed by lower surface 112
It angle can be equal；Obtuse angle formed by second sidewall 123 and bottom 121 and the second side surface 114 can with obtuse angle formed by lower surface 112
It is equal.
For example, magnetic pole box 120 can be formed by stainless steel, can also be formed by plastic material or other new materials.This
Outside, magnetic pole box 120 can be not particularly limited by technological formings such as punching press, welding or moldings.First side of magnetic pole box 120
It can round-corner transition between adjacent side wall in wall 122, second sidewall 123, third side wall 124 and the 4th side wall 125.
An exemplary embodiment of the present invention, magnet 130 may be disposed in magnetic pole box 120, to prevent magnet 130
It contacts and is corroded with moisture, corrosive medium.Preferably, magnet 130 is permanent magnet, such as, it may include neodymium iron boron
(Nd2Fe14B)。
Moisture, corrosive medium penetrate into magnetic pole box 120 and corrode magnet 130 in order to prevent, reality according to the present invention
The magnetic pole module 100 for applying example may also include the sealing material 140 being sealed in magnet 130 in magnetic pole box 120.
Preferably, sealing material 140 can be filled between magnet 130 and magnetic pole box 120 and magnet 130 and carrier board
Between 110, to coat magnet 130.For example, can be injected first into magnetic pole box 120 a small amount of when manufacturing magnetic pole module 100
Sealing material 140 is then placed in magnet 130, finally to the upper surface injecting sealing material 140 of magnet 130, and ensures sealing material
Material 140 is filled up completely the gap between magnet 130 and magnetic pole box 120 and covers the upper surface of magnet 130.Then, by magnetic pole box
120 are fixed to the stage portions 115 of carrier board 110, so as between magnet 130 and magnetic pole box 120 and magnet 130 and carrier
Sealing material 140 is formed between plate 110.
The feelings of sealing material 140 are filled between magnet 130 and magnetic pole box 120 and between magnet 130 and carrier board 110
Under condition, even if moisture, corrosive medium penetrate into magnetic pole box 120, magnet 130 can also be further prevented by sealing material 140
It is corroded.In addition, magnet 130 can be also fixed firmly in magnetic pole box 120 by sealing material 140, to prevent magnet 130 from existing
It is shaken in magnetic pole box 120.Preferably, sealing material 140 can be sealant.
Preferably, an exemplary embodiment of the present invention fills sealing material 140 under specific environment, described predetermined
Environment refers to that relative humidity≤60%, temperature are 10 DEG C~30 DEG C, air pressure constant (for example, 1 standard atmospheric pressure or so), nothing
Corrosive gas is (for example, sour gas: sulfur dioxide, chlorine etc.；Alkaline gas: ammonia etc.) environment.By in predetermined ring
Sealing material 140 is filled under border, it is ensured that 120 air pressure inside constant of magnetic pole box, without moisture, corrosive gas etc..
An exemplary embodiment of the present invention, magnetic pole box 120 can be fixed by welding to stage portion 115, for example, can lead to
It crosses fusion welding (for example, continuous melting weldering or interrupted fusion welding) and is welded to stage portion 115.It optionally, can be by utilizing automation
Welding manipulator is welded.
In particular, the first side wall 122 of magnetic pole box 120, second sidewall 123, third side wall 124 and the 4th side wall 125
At least part can surround stage portion 115, and be soldered to stage portion 115.
According to the exemplary embodiment of invention, the first side wall 122, second sidewall 123, the third side wall 124 of magnetic pole box 120
It may be less than or equal to the width W of the stage portion 115 of carrier board 110, with the thickness of the 4th side wall 125 so as to not make magnetic pole box
120 are projected into except region set by carrier board 110.
Preferably, magnetic pole box 120 can be welded to carrier board under specific environment by an exemplary embodiment of the present invention
110 stage portion 115, the specific environment refer to that relative humidity≤60%, temperature are 10 DEG C~30 DEG C, air pressure constant (example
Such as, 1 standard atmospheric pressure or so), non-corrosive gas is (for example, sour gas: sulfur dioxide, chlorine etc.；Alkaline gas: ammonia
Gas etc.) environment.By the stage portion 115 that magnetic pole box 120 is welded to carrier board 110 under the specific environment, it can be ensured that
The reliability of welding region.
An exemplary embodiment of the present invention, carrier board 110 and the welding region of magnetic pole box 120 occur rotten in order to prevent
Erosion, can carry out preservative treatment around the welding region to carrier board 110 and magnetic pole box 120.For example, anti-corrosion material can be applied to
Welding region between carrier board 110 and magnetic pole box 120.Anti-corrosion material for example can be plating metal alloy and/or anti-decaying paint
Deng.
An exemplary embodiment of the present invention, magnetic pole module 100 can be miniaturized, so as to be convenient for magnetic pole module 100
Installation and transport.In addition, magnetic pole module 100 according to the present invention can realize effective sealing of magnet 130, magnet 130 is prevented
It is influenced by corrosive medium etc..
Hereinafter, by the method for the manufacture magnetic pole module 100 for describing an exemplary embodiment of the present invention.
According to an embodiment of the invention, the manufacturing method of magnetic pole module 100 can include: prepare carrier board 110, carrier board
110 include stage portion 115, and stage portion 115 is by making the lower part of carrier board 110 concave along the peripheral direction of carrier board 110
Enter and is formed；Magnetic pole box 120 is prepared, magnetic pole box 120 is in the open box-shape in top；Magnet 130 is sealed in magnetic pole box 120
In；Magnetic pole box 120 is fixed to the stage portion 115 of carrier board 110.
The carrier board 110 and magnetic pole box 120 of embodiment according to the present invention can have to be described with above by reference to Fig. 1 to Fig. 4
The identical structure of structure, therefore detailed description will be omitted.
Preferably, magnetic pole box 120 can be welded to the stage portion 115 by fusion welding.It preferably, can be in specific environment
Lower that magnetic pole box 120 is welded to the stage portion 115, the specific environment refers to that relative humidity≤60%, temperature are 10 DEG C
~30 DEG C, air pressure constant, non-corrosive gas environment.
Preferably, anti-corrosion material can be also applied to around the welding region of magnetic pole box 120 and carrier board 110.
Hereinafter, the rotor that embodiment according to the present invention will be described referring to Fig. 4 and Fig. 5.
Fig. 5 is the schematic diagram for showing a part of the mounting surface of rotor of an exemplary embodiment of the present invention, Fig. 6
It is the sectional view for showing the line A-A interception along Fig. 5.
Motor may include rotor and stator.Wherein, the structure of motor can be inner stator, outer-rotor structure (that is, rotor edge
The periphery of stator is arranged) or internal rotor, outer stator structure (that is, stator is arranged along the periphery of rotor).For the convenience of description,
Example using outer rotor as rotor is described to the rotor of an exemplary embodiment of the present invention below.
As shown in Figure 5 and Figure 6, the rotor 1000 of an exemplary embodiment of the present invention may include 200 He of rotor rim
It is welded to multiple magnetic pole modules 100 of the mounting surface of rotor rim 200.Each magnetic pole module in multiple magnetic pole modules 100
100 can all have structure described in Fig. 1 to Fig. 4.
In the case where rotor 1000 is outer rotor, the mounting surface of rotor rim 200 is the inner circumferential of rotor rim 200
Face.It will be appreciated that the mounting surface of rotor rim 200 is the outer of rotor rim 200 in the case where rotor is internal rotor
Circumferential surface.
According to an embodiment of the invention, multiple magnetic pole modules 100 can generally along the axial direction of rotor rim 200 (for example, with
Rotor rim 200 it is axial parallel or axial at predetermined angular with rotor rim 200) arow is arranged in rotor rim
In 200 mounting surface.As shown in figure 5, rotor 1000 may include first row magnetic pole module and secondary series magnetic pole module.First row
Magnetic pole module and secondary series magnetic pole module can be parallel to each other, and can between first row magnetic pole module and secondary series magnetic pole module
It separates predetermined gap G (as shown in Figure 6).By separating predetermined gap between first row magnetic pole module and secondary series magnetic pole module
G, can make to carry out cooling cold air to rotor to move smoothly through the clearance G, to enhance the cooling effect to motor.
Each column magnetic pole module in first row magnetic pole module and secondary series magnetic pole module may include the multiple magnetic being in contact with each other
Pole module 100.In particular, the third side surface of the carrier board 110 of multiple magnetic pole modules 100 and the 4th side surface are (that is, upright
Side surface) and magnetic pole box 120 third side wall 124 and the 4th side wall 125 (that is, upright side wall) can be in contact with each other.
According to an embodiment of the invention, in each column magnetic pole module in first row magnetic pole module and secondary series magnetic pole module
Heart line L2 can be with the axis L1 of rotor rim 200 at predetermined angular β, wherein 0 °≤β≤5 °.Preferably, 0 ° of β≤5 ° <, at this
In the case of kind, vibration and noise of the motor in practical work process can be reduced.
An exemplary embodiment of the present invention, magnetic pole module 100 can be welded to rotor rim 200 by fusion welding.It is excellent
Selection of land, magnetic pole module 100 can be welded by continuous melting or discontinuously fusion welding is welded to rotor rim 200.Optionally, benefit can be passed through
It is welded with automatic welding machinery hand.When being welded, it is enough that the height of leg should ensure that magnetic pole module 100 has
Bonding strength.
Magnetic pole module 100 is welded to rotor rim 200 by an exemplary embodiment of the present invention, without to rotor magnetic
Yoke 200 carries out complicated processing, without mounting screw and nut etc., therefore installs and is easy, saves working hour, and reduce electricity
The weight of machine.
In addition, magnetic pole module 100 is welded to rotor rim 200, the press strip of fixed magnet is used for without setting, therefore
The cost of press strip has been saved, and the weight of motor will not have been caused to increase because press strip is arranged.
For the generator of Large-scale Wind Turbines, the rotor and basis of an exemplary embodiment of the present invention
Above-mentioned rotor in the prior art is compared, and weight can reduce 1t-2t.
In addition, according to an embodiment of the invention, by the way that magnetic pole module 100 is welded to rotor rim 200, due to being omitted
The installing components such as bolt, press strip, therefore rotor rim 200 is directly exposed to outside, is conducive to carry out rotor in cooling cold sky
The circulation of gas, thus cooling effect of the enhancing to motor.
An exemplary embodiment of the present invention, rotor 1000 may also include the coating 300 of covering magnetic pole module 100.
As shown in fig. 6, coating 300 integrally can be covered after magnetic pole module 100 is welded to rotor rim 200
In the entire mounting surface (for example, lower surface) of rotor rim 200, that is to say, that coating 300 can cover magnetic pole module 100
Lower surface, the part between side surface and magnetic pole module 100.
By forming the coating 300 of covering magnetic pole module 100, moisture, corrosive medium etc. can be further prevented to penetrate into magnetic
It is contacted in pole box 120 with magnet 130.In addition, coating 300 can also strengthen the mechanical performance of magnetic pole module 100, to meet motor
Mechanical fatigue requirement during real-world operation.
Optionally, coating 300 may include resin.The method for forming coating 300 is not particularly limited, can be by this field
Any means known form coating 300.Preferably, the utility model patent that can be CN204160781U according to Authorization Notice No.
Disclosed in vacuum assisted resin method for filling form the coating 300 of an exemplary embodiment of the present invention.
Although the example using outer-rotor structure as rotor is described above for description is facilitated, it should be understood that
It is that the rotor of an exemplary embodiment of the present invention may be internal rotor.
It various needs to be arranged in addition, can be applied to according to the magnetic pole module of exemplary embodiment described above and rotor
In the equipment of motor, and it is not particularly limited.An exemplary embodiment of the present invention, can by magnetic pole module as described above and
Rotor application is into wind-driven generator.
The magnetic pole module of embodiment according to the present invention can minimize magnetic pole module, so as to convenient for magnetic pole module
Installation and transport.In addition, magnetic pole module according to the present invention can realize effective sealing of magnet, prevent magnet by corrosive medium
Deng influence.
The rotor of embodiment according to the present invention, by the way that magnetic pole module is welded to rotor rim, installation is easy, and saves work
When, cold air is easy to circulate, and reduces the weight of motor.
Although exemplary embodiment of the present invention has been described in detail referring to its exemplary embodiment, this field
It is to be understood by the skilled artisans that in the case where not departing from the spirit and scope of the present invention defined by claim, it can be to it
It carries out various changes of form and details.
Claims (12)
1. a kind of rotor, which is characterized in that the rotor (1000) includes:
Rotor rim (200), including mounting surface；
Magnetic pole module (100), the magnetic pole module (100) are welded to the mounting surface of the rotor rim (200)；
Wherein, the magnetic pole module (100) includes:
Carrier board (110), the carrier board (110) include stage portion (115), and the stage portion (115) is by making the carrier
The lower part of plate (110) inwardly concaves along the peripheral direction of the carrier board (110) and is formed；
Magnetic pole box (120), the magnetic pole box (120) are in the open box-shape in top, and the magnetic pole box (120) is fixed to described
The stage portion (115) of carrier board (110)；
Magnet (130) is sealed in the magnetic pole box (120),
Wherein, magnetic pole module (100) arow is arranged, is provided between two column magnetic pole modules (100) adjacent to each other pre-
Fixed gap (G), magnetic pole module (100) described in each column includes the multiple magnetic pole modules (100) being in contact with each other.
2. rotor according to claim 1, which is characterized in that the side wall of the magnetic pole box (120) is fixed to the carrier
The thickness of the stage portion (115) of plate (110), the side wall of the magnetic pole box (120) is less than or equal to the stage portion
(115) width.
3. rotor according to claim 1 or 2, which is characterized in that the carrier board (110) include along a first direction that
This opposite the first side surface (113) and the second side surface (114) and along the second direction vertical with the first direction
Third side surface and the 4th side surface relative to each other, wherein first side surface (113) and second side surface
(114) in obtuse angle with the bottom surface of the carrier board (110), the third side surface and the 4th side surface and the carrier
The bottom surface of plate (110) is rectangular.
4. rotor according to claim 3, which is characterized in that the magnetic pole box (120) has and the carrier board (110)
Corresponding shape, including bottom (121), along first direction the first side wall relative to each other (122) and second sidewall
(123) and the third side wall (124) and fourth side wall (125) relative to each other along the second direction, wherein described first
Side wall (122) and second sidewall (123) and the bottom (121) in obtuse angle, the third side wall (124) and the 4th side wall
(125) rectangular with the bottom (121).
5. rotor according to claim 1 or 2, which is characterized in that the magnetic pole module (100) further includes by the magnet
(130) sealing material (140) being sealed in the magnetic pole box (120), the sealing material (140) are filled in the magnet
(130) between the magnetic pole box (120) and between the magnet (130) and the carrier board (110).
6. rotor according to claim 1, which is characterized in that the magnetic pole module (100) of arow arrangement is parallel to described
The axial direction of rotor rim (200) or with the axial direction of the rotor rim (200) at predetermined angular.
7. rotor according to claim 6, which is characterized in that the predetermined angular is defined as β, wherein 0 ° of < β of satisfaction≤
5°。
8. rotor according to claim 1, which is characterized in that the magnetic pole module (100) is by continuous fusion welding or breaks
Continuous fusion welding is welded to the mounting surface of the rotor rim (200).
9. rotor according to claim 1 or 6, which is characterized in that the rotor (1000) further includes covering the magnetic pole
The coating (300) of module (100), the coating (300) includes resin.
10. rotor according to claim 1, which is characterized in that the magnetic pole box (120) is welded to the stage portion
(115), anti-corrosion material is applied with around the welding region of the magnetic pole box (120) and the carrier board (110).
11. a kind of manufacturing method of rotor, which is characterized in that the manufacturing method includes:
By continuous melting weldering or discontinuously fusion welding by magnetic pole module according to claim 1 to 10 (100)
It is welded to the mounting surface of rotor rim (200).
12. manufacturing method according to claim 11, which is characterized in that the manufacturing method further include: by the magnetic
After pole module (100) is welded in the mounting surface of the rotor rim (200), is formed and cover the magnetic pole module
(100) coating (300), the coating (300) includes resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315965.3A CN107070033B (en) | 2017-05-08 | 2017-05-08 | Rotor and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315965.3A CN107070033B (en) | 2017-05-08 | 2017-05-08 | Rotor and method for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107070033A CN107070033A (en) | 2017-08-18 |
| CN107070033B true CN107070033B (en) | 2019-05-07 |
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ID=59596119
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710315965.3A Active CN107070033B (en) | 2017-05-08 | 2017-05-08 | Rotor and method for manufacturing the same |
Country Status (1)
| Country | Link |
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| CN (1) | CN107070033B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968500A (en) * | 2017-12-19 | 2018-04-27 | 北京金风科创风电设备有限公司 | Magnetic pole module, manufacturing method thereof, rotor and motor |
| CN111342581B (en) * | 2020-04-01 | 2021-09-24 | 上海电气风电集团股份有限公司 | Magnetic pole protection structure, rotor, motor and rotor installation method |
| CN114301251A (en) * | 2021-11-30 | 2022-04-08 | 江苏中车电机有限公司 | Protection method for magnetic pole box of wind driven generator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08223835A (en) * | 1995-02-09 | 1996-08-30 | Honda Motor Co Ltd | Permanent magnet rotor |
| US7573168B2 (en) * | 2005-10-24 | 2009-08-11 | General Electric Company | Method and apparatus for assembling a permanent magnet pole assembly |
| CN201813229U (en) * | 2010-09-16 | 2011-04-27 | 哈尔滨海纳电机制造有限公司 | Welded magnetic pole of permanent magnet motor |
| CN204160781U (en) * | 2014-08-27 | 2015-02-18 | 新疆金风科技股份有限公司 | The vacuum assisted resin perfusion protection coating of permanent magnet machine rotor and system |
| CN204179783U (en) * | 2014-11-25 | 2015-02-25 | 南车株洲电机有限公司 | A kind of magneto magnetic pole box |
| CN105214913A (en) * | 2015-11-10 | 2016-01-06 | 南车株洲电机有限公司 | A kind of glue injection equipment of magnetic pole box and glue injection method thereof |
| CN105553144A (en) * | 2015-12-23 | 2016-05-04 | 北京金风科创风电设备有限公司 | Rotor magnetic pole fixing method and rotor |
| CN106208463A (en) * | 2016-09-18 | 2016-12-07 | 中车株洲电机有限公司 | The fixing device of a kind of permanent magnet and a kind of magneto |
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2017
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