CN112865359B - Rotor, assembling method thereof, magnetic pole module and motor - Google Patents
Rotor, assembling method thereof, magnetic pole module and motor Download PDFInfo
- Publication number
- CN112865359B CN112865359B CN201911183678.7A CN201911183678A CN112865359B CN 112865359 B CN112865359 B CN 112865359B CN 201911183678 A CN201911183678 A CN 201911183678A CN 112865359 B CN112865359 B CN 112865359B
- Authority
- CN
- China
- Prior art keywords
- axial
- yoke
- rotor
- radial
- pole module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- H02K1/27—Rotor cores with permanent magnets
-
- 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
- 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
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a rotor, an assembling method thereof, a magnetic pole module and a motor. The rotor includes: a magnet yoke, wherein the inner peripheral surface or the outer peripheral surface of the magnet yoke is a magnetic pole mounting surface; a pole module; the first axial limiting piece is propped against the first end of the magnetic pole module in the axial direction of the rotor; and the second axial limiting piece is propped against the second end of the magnetic pole module in the axial direction, wherein at least one of the first axial limiting piece and the second axial limiting piece is detachably connected with the magnetic yoke. According to the rotor provided by the embodiment of the invention, the magnetic pole module can be assembled or disassembled through at least one axial end of the magnetic yoke, so that the assembly of the rotor or the disassembly and replacement of the magnetic pole module are facilitated. The first axial limiting piece and the second axial limiting piece can be prefabricated and are easy to process, and compared with the technical scheme that the magnetic pole module is limited by the processing groove structure on the magnetic yoke, the magnetic pole module is more efficient and saves cost.
Description
Technical Field
The invention relates to the field of motors, in particular to a rotor, an assembling method thereof, a magnetic pole module and a motor.
Background
In a permanent magnet motor, a stator and a rotor are important components of the motor, wherein the stator is a fixed part in the motor, and the rotor is a rotating part in the motor, and the stator and the rotor can relatively rotate.
In the prior art, when the rotor is assembled, the magnetic pole modules are limited and fixed in the axial direction of the rotor, so that a groove structure is required to be machined on a magnetic yoke of a rotor bracket along the axial direction, and then the magnetic pole modules are placed in the groove structure to limit the magnetic pole modules. In the assembly process, the processing groove structure increases the processing cost of the rotor, a large amount of working hours are consumed in the processing process, the layering is arranged between the adjacent magnetic pole modules, the interval is larger, and the most magnetic pole modules cannot be arranged in the circumferential direction of the rotor, so that the performance of the motor is influenced.
Disclosure of Invention
The invention provides a rotor, an assembling method thereof, a magnetic pole module and a motor, wherein the fixing mode of the two axial ends of the magnetic pole module is used for replacing the axially extending pressing strip fixing mode of the magnetic pole module, so that the space between adjacent magnetic pole modules in the circumferential direction can be designed according to the optimal performance of the motor without considering the space width of the pressing strips, the performance of the motor is improved, and the assembling efficiency of the motor is improved.
In a first aspect, the present invention provides a rotor comprising: a magnet yoke, wherein the inner peripheral surface or the outer peripheral surface of the magnet yoke is a magnetic pole mounting surface; a magnetic pole module mounted on the magnetic pole mounting surface of the magnetic yoke, the magnetic pole module having a first end and a second end opposite to each other in the axial direction of the rotor; the first axial limiting piece is connected with the magnetic pole mounting surface of the magnetic yoke and extends along the radial direction of the rotor, and the first axial limiting piece is propped against the first end of the magnetic pole module in the axial direction of the rotor; the second axial limiting piece is connected with the magnetic pole mounting surface of the magnetic yoke and extends along the radial direction, and the second axial limiting piece is propped against the second end of the magnetic pole module in the axial direction, wherein at least one of the first axial limiting piece and the second axial limiting piece is detachably connected with the magnetic yoke.
According to any of the foregoing embodiments of the first aspect of the present invention, the first axial limiter and the second axial limiter are provided with radially extending connecting holes, respectively.
According to any of the foregoing embodiments of the first aspect of the invention, the pole module has a first surface facing away from the yoke, the rotor further comprising: the first radial limiting piece is connected with the first axial limiting piece and/or the magnetic yoke and extends along the axial direction, and the first radial limiting piece is propped against at least part of the first surface of the magnetic pole module in the radial direction.
According to any one of the foregoing embodiments of the first aspect of the present invention, the first radial stopper includes a first connection hole, and the first connection hole fixedly connects the first radial stopper and the base plate through the connection member.
According to any of the foregoing embodiments of the first aspect of the present invention, the first radial stopper includes a second connection hole, the second connection hole fixedly connects the first radial stopper and the first axial stopper through the connection piece, or the second connection hole fixedly connects the first radial stopper and the yoke through the connection piece.
According to any of the foregoing embodiments of the first aspect of the present invention, the first radial stop is integrally formed with the first axial stop and/or the yoke.
According to any of the foregoing embodiments of the first aspect of the present invention, the rotor further comprises: the second radial limiting piece is connected with the second axial limiting piece and/or the magnetic yoke and extends along the axial direction, and the second radial limiting piece is propped against at least part of the first surface of the magnetic pole module in the radial direction.
According to any of the foregoing embodiments of the first aspect of the present invention, the first axial limiter is integrally formed with the yoke, and the second radial limiter is integrally formed with the second axial limiter.
According to any of the foregoing embodiments of the first aspect of the present invention, the first axial limiter is integrally formed with the first radial limiter, and the second axial limiter is integrally formed with the second radial limiter.
According to any of the foregoing embodiments of the first aspect of the present invention, the second radial stopper includes a third connection hole penetrating the second axial stopper in the radial direction, the third connection hole fixedly connecting the second radial stopper, the second axial stopper, and the yoke through the connection member.
According to any of the foregoing embodiments of the first aspect of the present invention, the pole module comprises: the substrate comprises a bearing part and connecting parts connected to two axial ends of the bearing part; and the magnet assembly is arranged on the bearing part of the substrate, wherein the dimension of the magnet assembly in the axial direction is smaller than that of the substrate in the axial direction so as to expose the connecting part, the magnetic pole module is provided with a step structure at the first end and the second end, and the first radial limiting piece and the second radial limiting piece are respectively propped against the step structure.
According to any one of the foregoing embodiments of the first aspect of the present invention, one pole module extending in the axial direction is connected to the pole mounting surface at the same position in the circumferential direction of the rotor.
In a second aspect, an embodiment of the present invention provides a pole module for forming a column of poles of a rotor, the pole module comprising: the substrate comprises a bearing part and connecting parts connected to two axial ends of the bearing part; the magnet assembly comprises a plurality of magnetic steels which are arranged in a row along the axial direction, the magnet assembly is arranged on a bearing part of the substrate, the dimension of the magnet assembly in the axial direction is smaller than that of the substrate in the axial direction, so that at least one connecting part is exposed, and at least one end of the magnetic pole module in the axial direction is provided with a step structure; wherein the pole modules are connected with the yoke of the rotor through connection parts, and at least one connection part comprises a positioning hole extending along the radial direction of the rotor.
In a third aspect, an embodiment of the present invention provides an electric machine, including: a stator; and a rotor according to any of the preceding embodiments, the rotor being coaxially journalled with the stator.
In a fourth aspect, an embodiment of the present invention provides a method for assembling a rotor to obtain a rotor according to any one of the foregoing embodiments, the method including: one of the first axial limiting piece and the second axial limiting piece is configured to be connected with a magnetic pole mounting surface of the magnetic yoke; connecting the magnetic pole module with the magnetic pole mounting surface of the magnetic yoke so that one end of the magnetic pole module in the axial direction of the rotor abuts against one of the first axial limiting piece and the second axial limiting piece, which is connected to the magnetic yoke; and the other one of the first axial limiting piece and the second axial limiting piece is detachably connected with the magnetic yoke and is propped against the other end of the magnetic pole module in the axial direction.
According to any one of the foregoing embodiments of the fourth aspect of the present invention, configuring one of the first axial limiter and the second axial limiter to be connected to the pole mounting surface of the yoke includes: the first axial limiting piece is formed on one end part of the magnetic pole mounting surface of the magnetic yoke along the axial direction, and after the magnetic pole module is connected with the magnetic pole mounting surface of the magnetic yoke, the assembly method further comprises the following steps: and fixedly connecting the first radial limiting piece with the first axial limiting piece and/or the magnetic yoke.
According to any of the foregoing embodiments of the fourth aspect of the present invention, the assembly method further comprises: and fixedly connecting the second radial limiting piece with the second axial limiting piece and/or the magnetic yoke.
According to any one of the foregoing embodiments of the fourth aspect of the present invention, the second radial stopper and the second axial stopper are integrally formed, and the assembling method includes: and the second axial limiting piece and the second radial limiting piece are fixedly connected with the magnetic yoke.
According to any one of the foregoing embodiments of the fourth aspect of the present invention, before connecting the pole module with the pole mounting surface of the yoke, the assembling method further includes: forming a pole module, wherein forming the pole module comprises: bonding the non-magnetized magnetic steel on a substrate; sealing and protecting the magnetic steel; carrying out corrosion prevention treatment on the rest positions of the substrate; carrying out integral magnetization on the magnetic pole module to convert the non-magnetized magnetic steel into a magnet assembly; and forming a positioning hole on at least one end of the substrate in the axial direction.
According to the rotor and the motor provided by the embodiment of the invention, the rotor comprises the first axial limiting piece propped against the first end of the magnetic pole module and the second axial limiting piece propped against the second end of the magnetic pole module, so that both ends of the magnetic pole module in the axial direction are limited, and the connection stability of the magnetic pole module on the magnetic yoke is improved. At least one of the first axial limiting piece and the second axial limiting piece is detachably connected with the magnetic yoke, so that the magnetic pole module can be assembled or disassembled through at least one axial end of the magnetic yoke, and the assembly of the rotor or the disassembly and replacement of the magnetic pole module are facilitated. The first axial limiting piece and the second axial limiting piece can be prefabricated and are easy to process, and compared with the technical scheme that the magnetic pole module is limited by the processing groove structure on the magnetic yoke, the magnetic pole module is more efficient and saves cost.
In some alternative embodiments, the rotor further comprises a first radial limiter, and the first radial limiter is abutted against at least part of the first surface of the magnetic pole module in the radial direction, so that the radial position of the magnetic pole module of the rotor is further limited, and the connection stability of the magnetic pole module on the magnetic yoke is further improved.
In some optional embodiments, the first radial limiting member includes a first connecting hole, and the first connecting hole is fixedly connected with the first radial limiting member and the substrate through the connecting member, so that the circumferential position of the magnetic pole module of the rotor is further limited, and the magnetic pole module is limited by multiple angles on the magnetic yoke, and the connection stability of the magnetic pole module on the magnetic yoke is further improved.
In some alternative embodiments, one magnetic pole module extending along the axial direction is connected to the magnetic pole mounting surface at the same position in the circumferential direction, and each magnetic pole module is an integral magnetic pole on the rotor, so that the problem that the assembly time of the module is too long when the integral magnetic pole is formed by a plurality of magnetic pole modules is avoided.
According to the assembling method of the rotor, one of the first axial limiting piece and the second axial limiting piece is configured to be connected with the magnetic pole mounting surface of the magnetic yoke, limiting of the magnetic pole module on one axial end of the magnetic yoke can be provided, meanwhile, the magnetic pole module can be assembled through the other axial end of the magnetic yoke, and assembly or disassembly of the magnetic pole module is facilitated. And then the other one of the first axial limiting piece and the second axial limiting piece is detachably connected with the magnetic yoke and is propped against the other end of the magnetic pole module in the axial direction, so that both ends of the magnetic pole module in the axial direction are limited, and the connection stability of the magnetic pole module on the magnetic yoke is improved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading the following detailed description of non-limiting embodiments thereof, taken in conjunction with the accompanying drawings in which like or similar reference characters designate the same or similar features.
FIG. 1 is a perspective view of a rotor provided in one embodiment of the present invention;
FIG. 2 is an exploded perspective view of a rotor provided in accordance with one embodiment of the present invention;
FIG. 3 is a perspective view of a pole module provided in one embodiment of the present invention;
FIG. 4 is a flow chart of a method of assembling a rotor provided in one embodiment of the present invention;
fig. 5 is a flowchart showing a step of connecting a pole module to a pole mounting surface of a yoke in a method of assembling a rotor according to an embodiment of the present invention.
In the figure:
100-magnet yoke; 100 s-pole mounting face;
200-pole modules; 200 a-a first end; 200 b-a second end; s1-a first surface; s2-a second surface; 210-a substrate; 211-a carrier; 212-a connection; 220-magnets; 200 s-step structure; 200 h-positioning holes;
310-a first axial stop; 320-second axial limiter;
410-a first radial stop; 420-a second radial stop;
h1-first connection holes; h2-second connection holes; h3-a third connection hole;
510-first connector; 520-a second connector; 530-a third connector;
x-axis direction; y-circumferential direction.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the invention and are not configured to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The invention provides a rotor which can be a rotor in an electric machine and can rotate around a shaft relative to a stator of the electric machine. "radial" in the present invention refers to the diametrical direction of the motor rotor or other rotating component, and "axial" refers to the direction along the rotational axis of the motor rotor, and "circumferential" refers to the circumferential direction of the motor rotor or other rotating component. Fig. 1 is a perspective view of a rotor according to an embodiment of the present invention, which includes a yoke 100 and a pole module 200. The rotor may be a cylindrical structure, and a section in the circumferential direction Y of the rotor is illustrated in fig. 1.
Fig. 2 is an exploded perspective view of a rotor according to an embodiment of the present invention, wherein a section in a rotor circumferential direction Y is illustrated in fig. 2.
In some embodiments, the rotor includes a rotor support including the yoke 100 and the pole module 200. The yoke 100 is cylindrical in shape as a whole, and the yoke 100 includes an inner peripheral surface and an outer peripheral surface, wherein the inner peripheral surface or the outer peripheral surface of the yoke 100 is the magnetic pole mounting surface 100s.
In the embodiment described below, taking the case where the inner peripheral surface of the yoke 100 is the magnetic pole mounting surface 100s as an example, when the rotor is used in a motor, at least part of the rotor may be fitted around the outer periphery of the stator such that the inner peripheral surface of the rotor faces the stator, and the motor is of an outer rotor structure.
It will be appreciated that in other embodiments, the pole mounting surface 100s may be the outer peripheral surface of the yoke 100, and when the rotor is used in an electric machine, at least part of the stator is sleeved on the outer periphery of the rotor, such that the outer peripheral surface of the rotor faces the stator, and the electric machine is an inner rotor structure.
The pole module 200 is fixedly connected to the pole mounting surface 100s of the yoke 100, and the pole module 200 has opposite first and second ends 200a and 200b in the axial direction X of the rotor.
The rotor further includes a first axial stop 310 and a second axial stop 320 to stop the pole module 200 in the axial direction X. The first axial stopper 310 is connected to the pole mounting surface 100s of the yoke 100 and extends inward in the radial direction of the rotor. The first axial stopper 310 abuts against the first end 200a of the pole module 200 in the axial direction X of the rotor to axially stop one end of the pole module 200.
The second axial stopper 320 is connected to the pole mounting surface 100s at the other axial end of the yoke 100 and extends radially inward. The second axial stopper 320 abuts against the second end 200b of the pole module 200 in the axial direction X to axially stop the other end of the pole module 200.
According to the rotor provided by the embodiment of the invention, the rotor comprises the first axial limiting piece 310 propped against the first end 200a of the magnetic pole module 200 and the second axial limiting piece 320 propped against the second end 200b of the magnetic pole module 200, so that both ends of the magnetic pole module 200 in the axial direction are limited, and the connection stability of the magnetic pole module 200 on a magnetic yoke is improved.
In some embodiments, at least one of the first axial limiter 310 and the second axial limiter 320 is detachably connected to the yoke 100, so that the magnetic pole module 200 can be assembled or disassembled through at least one end of the yoke in the axial direction, facilitating assembly of the rotor or disassembly and replacement of the magnetic pole module 200. That is, either the first axial stopper 310 or the second axial stopper 320 may be detachably connected to the yoke 100; the first axial limiter 310 may be integrally formed with the yoke, the second axial limiter 320 may be detachably connected with the yoke 100, or the second axial limiter 320 may be integrally formed with the yoke 100, and the first axial limiter 310 may be detachably connected with the yoke 100.
According to the rotor provided by the embodiment of the invention, the first axial limiting piece 310 and the second axial limiting piece 320 can be prefabricated and are easy to process, and compared with the technical scheme that the slot structure is processed on the magnetic yoke to limit the magnetic pole module, the rotor is more efficient and saves cost.
In some embodiments, the first axial limiter 310 and the second axial limiter 320 are respectively provided with radially extending connecting holes, which may be used to connect the first axial limiter 310 or the second axial limiter 320 to the yoke 100, and may also be used to connect the first axial limiter 310 or the second axial limiter 320 to other components (e.g., other limiters).
In some embodiments, the pole module 200 has a first surface S1 facing away from the yoke 100 and a second surface S2 facing toward the yoke 100, the second surface S2 of the pole module 200 being fixedly connected with the pole mounting surface 100S of the yoke 100. That is, as shown in fig. 1, the first surface S1 of the pole module 200 is a surface facing the stator, and the second surface S2 of the pole module 200 is a surface fixed to the yoke 100.
In the present invention, the pole module 200 includes a base plate 210 and a magnet assembly 220. The base plate 210 is made of a magnetically conductive material, and the base plate 210 may have an arc structure in the circumferential direction, and the surface facing the yoke 100 is matched with the pole mounting surface 100s. The base plate 210 extends along an axial direction X with an axial dimension that is greater than the axial dimension of the magnet assembly 200 on the pole module. That is, the substrate 210 includes a carrying portion 211, and connecting portions 212 connected to both ends of the carrying portion 211 in the axial direction X, and the magnet assembly 220 is disposed on the carrying portion 211 of the substrate 210. The dimension of the magnet assembly 220 in the axial direction X is smaller than the dimension of the base plate 210 in the axial direction X to expose the connection portion 212 such that the pole module 200 has a stepped structure 200s at the first and second ends 200a and 200b. As can be seen from fig. 1, in order to fix the pole module 200 to the yoke 100, one of the step structures 200s is provided with a positioning hole 200h penetrating the substrate 210. The magnet assembly 220 may be a plurality of magnetic steels arranged on the substrate 210. In some embodiments, the pole module 200 may also include a protective layer, which may be made of a non-magnetically permeable material.
The manufacturing process of the pole module 200 may be: the non-magnetized magnetic steel is adhered to the bearing part 211 of the substrate 210 through high-strength structural adhesive, and then the non-magnetic conductive protective layer is used for sealing and protecting the magnetic steel. The sealing protection is realized by adopting a stainless steel cover shell laser welding protection mode, a glass fiber impregnating resin layer protection mode and the like. The remaining locations of the substrate 210 are corrosion-protected, preferably with a wear-resistant coating. Thereafter, the pole module 200 is entirely magnetized such that the non-magnetized magnetic steel is converted into the magnet assembly 220. In some embodiments, a positioning hole 200h is also machined in at least one end of the axial direction of the base plate 210.
In some embodiments, the pole mounting surface 100s is connected with one pole module 200 extending along the axial direction X at the same position in the circumferential direction Y of the rotor, and each pole module 200 is an integral pole on the rotor, so as to avoid the problem that the assembly of the module is too long when the integral pole is formed by a plurality of pole modules 200.
The rotor may further include a first radial stopper 410 having the same arc-shaped structure in the circumferential direction as the yoke 100. The first radial limiter 410 is connected to the first axial limiter 310 and/or the yoke 100 and extends in the axial direction X. The first radial limiting member 410 is abutted against one step structure 200s of the magnetic pole module 200 in the radial direction and is fixedly connected with the base plate 210 of the magnetic pole module 200 and the magnetic yoke 100 respectively through the arrangement of the positioning hole 200h, so that the radial position of the magnetic pole module 200 of the rotor is further limited, and the connection stability of the magnetic pole module 200 on the magnetic yoke 100 is further improved.
In some embodiments, at least one end of the axial direction of the base plate 210 of the pole module 200 is provided with a positioning hole 200h. The first radial limiting member 410 includes a first connecting hole H1, and the first connecting hole H1 is fixedly connected to the first radial limiting member 410 and the substrate 210 through a connecting member. In some embodiments, the first connection hole H1 is connected to the positioning hole 200H on the substrate 210 through the first connection member 510, and the first connection member 510 may be a bolt or a positioning pin.
The first connecting hole H1 is fixedly connected with the first radial limiting member 410 and the substrate 210 through the connecting member, so that the circumferential Y position of the magnetic pole module 200 of the rotor is further limited, the magnetic pole module 200 is limited by multiple angles on the magnetic yoke 100, and the connection stability of the magnetic pole module 200 on the magnetic yoke 100 is further improved.
In this embodiment, the first axial limiter 310 is integrally formed with the yoke 100, and the first radial limiter 410 is detachably connected to the first axial limiter 310. In some embodiments, the first radial limiter 410 includes a second connection hole H2, where the second connection hole H2 fixedly connects the first radial limiter 410 with the first axial limiter 310 through a connection piece, or the second connection hole H2 fixedly connects the first radial limiter 410 with the yoke 100 through a connection piece.
In this embodiment, the first radial limiter 410 includes a second connecting hole H2, and the second connecting hole H2 is fixedly connected to the first radial limiter 410 and the first axial limiter 310 through the second connecting piece 520.
It will be appreciated that in other embodiments, the first axial limiter 310 may be detachably coupled to the yoke 100; in other embodiments, the first radial stop 410 and the first axial stop 310 may be a unitary structure. In some embodiments, the first radial stop 410 is integrally formed with the first axial stop 310 and/or the yoke 100.
The number of the pole modules 200 may be plural, and the plurality of pole modules 200 are sequentially arranged in the circumferential direction Y to the pole mounting surface 100s. In some embodiments, the pole modules 200 disposed every predetermined number of pole modules 200 in the circumferential direction Y are connected to the first radial stopper 410 by the first connection 510 such that the circumferential direction Y positions of the pole modules 200 disposed every predetermined number of pole modules 200 in the circumferential direction Y are retained by the first connection 510, and the remaining pole modules 200 can be retained by pressing against each other in the circumferential direction Y to achieve respective circumferential direction Y limits.
In some embodiments, the magnetic pole modules 200 disposed at intervals of one magnetic pole module 200 in the circumferential direction Y are connected with the first radial limiting member 410 through the first connecting member 510, and the remaining magnetic pole modules 200 can respectively abut against the adjacent magnetic pole modules 200 that have been limited by the circumferential direction Y through two sides of the circumferential direction Y to achieve self circumferential direction Y limitation.
In some of the above embodiments, the magnetic pole module 200 may be disposed in close proximity to each other in the circumferential direction Y, and compared with the radial limiting of the magnetic pole module 200 by processing the groove structure on the magnetic yoke or disposing the extrusion strip, the assembly efficiency is improved, the processing cost is saved, and the circumferential direction Y space of the magnetic yoke can be more fully utilized. The pole pitch design with any size can be realized between the pole modules 200 and 200 through the width design of the base plate 210 and the magnet assembly 220, and the electromagnetic design is more flexible.
In some embodiments, the rotor further includes a second radial stop 420. The second radial stopper 420 is connected to the second axial stopper 320 and/or the yoke 100 and extends in the axial direction X, and the second radial stopper 420 radially abuts against at least part of the first surface S1 of the pole module 200. Since the first radial stopper 410 and the second radial stopper 420 can both limit the radial position of the magnetic pole module 200, the radial position stability of the magnetic pole module 200 on the yoke 100 can be enhanced.
In some embodiments, the pole module 200 includes a base plate 210 and a magnet assembly 220. The base plate 210 is located between the magnet assembly 220 and the pole mounting surface 100s. The dimension of the magnet assembly 220 in the axial direction X is smaller than the dimension of the base plate 210 in the axial direction X, such that the first surface S1 also has a stepped structure 200S at the second end 200b of the pole module 200, and the second radial stop 420 can abut against the stepped structure 200S of the second end 200b.
In some embodiments, the second axial limiter 320 is detachably connected to the yoke 100, and the second radial limiter 420 is integrally formed with the second axial limiter 320, so that the second radial limiter 420 can be assembled or disassembled with the second axial limiter 320 at the same time, thereby improving the assembly efficiency of the rotor.
In the above embodiment, the first axial limiter 310 is integrally formed with the yoke 100, the first axial limiter 310 may be prefabricated on the yoke 100, the second radial limiter 420 is integrally formed with the second axial limiter 320, and the second radial limiter 420 and the second axial limiter 320 may be prefabricated as an integrally structured component.
In an alternative embodiment of the example, the first axial limiter 310 may be integrally formed with the first radial limiter 410, both may be prefabricated as a first component of an integral structure, the second axial limiter 320 may be integrally formed with the second radial limiter 420, and both may be prefabricated as a second component of an integral structure, where the first and second components may be of substantially identical structure.
In some embodiments, the second radial stopper 420 includes a third connection hole H3, and the third connection hole H3 penetrates the second axial stopper 320 in the radial direction, and the third connection hole H3 fixedly connects the second radial stopper 420, the second axial stopper 320, and the yoke 100 through a third connection 530.
It will be appreciated that in other embodiments, the second radial stop 420 may be removably coupled to the second axial stop 320.
The embodiment of the invention also provides a magnetic pole module which is used for forming a column of magnetic poles of the rotor.
Fig. 3 is a perspective view of a pole module according to an embodiment of the present invention, and the pole module 200 includes a base plate 210 and a magnet assembly 220. The substrate 210 includes a carrying portion 211 and connecting portions 212 connected to two ends of the carrying portion 211 in the axial direction X. Wherein the axial direction X is the direction along the rotor rotation axis.
The magnet assembly 220 includes a plurality of magnetic steels arranged in a row along an axial direction X, the magnet assembly 220 is disposed on the carrying portion 211 of the substrate 210, and a dimension of the magnet assembly 220 in the axial direction X is smaller than a dimension of the substrate 210 in the axial direction X so as to expose at least one connecting portion 212, so that at least one end of the magnetic pole module 200 along the axial direction X has a step structure 200s. In the present embodiment, the pole module 200 has opposite first and second ends 200a and 200b in the axial direction X of the rotor, and the first and second ends 200a and 200b of the pole module 200 each have a stepped structure 200s.
In some embodiments, the pole modules 200 are connected to the yoke of the rotor by connection portions 212, and at least one connection portion 212 includes a positioning hole 200h extending in the radial direction of the rotor. In this embodiment, the connection portion 212 at the first end 200a of the pole module 200 is provided with a positioning hole 200h. The rotor can be provided with various limiting pieces, and the limiting pieces can radially abut against the step structures 200s of the magnetic pole modules 200 to realize radial limiting of the magnetic pole modules 200. The limiting member may also be connected to the positioning hole 200h through a connecting member, so that the radial position and the circumferential position of the magnetic pole module 200 are further limited, and the connection stability of the magnetic pole module 200 on the rotor yoke is further improved.
The embodiment of the invention also provides a motor, which can be a motor in a wind generating set. The motor comprises a stator and a rotor, wherein the rotor and the stator are coaxially sleeved, and the rotor can be any one of the rotors in the previous embodiment.
According to the motor provided by the embodiment of the invention, the rotor comprises the first axial limiting piece 310 propped against the first end 200a of the magnetic pole module 200 in the axial direction X and the second axial limiting piece 320 propped against the second end 200b of the magnetic pole module 200 in the axial direction X, so that both ends of the magnetic pole module 200 in the axial direction are limited in the axial direction X, and the connection stability of the magnetic pole module 200 on the magnetic yoke 100 is improved. At least one of the first axial limiter 310 and the second axial limiter 320 is detachably connected with the magnetic yoke 100, so that the magnetic pole module 200 can be assembled or disassembled through at least one axial end of the magnetic yoke 100, and assembly of the rotor or disassembly and replacement of the magnetic pole module 200 are facilitated. The first axial limiting member 310 and the second axial limiting member 320 can be prefabricated and are easy to process, and compared with the technical scheme that the magnetic pole module 200 is limited by a groove structure processed on the magnetic yoke 100, the magnetic pole module is more efficient and saves cost.
The rotor of the motor provided by the embodiment of the invention further comprises a first radial limiting piece 410 propped against the first end 200a of the magnetic pole module 200 in the radial direction and a second radial limiting piece 420 propped against the second end 200b of the magnetic pole module 200 in the radial direction, so that both ends of the magnetic pole module 200 in the axial direction are limited in the radial direction.
In some embodiments, the first axial limiter 310 and the first radial limiter 410 may be integrally formed and fixed to the magnetic yoke 100, or may be separately fixed to the magnetic yoke 100; the second axial stopper 320 and the second radial stopper 420 may be integrally formed and fixed to the yoke 100, or may be fixed to the yoke 100, respectively.
In some embodiments, one of the first axial limiter 310 or the second axial limiter 320 may be integrally formed with the yoke, and the other axial limiter may be fixed to the yoke 100 through a connection hole. At this time, the block member having a single extending direction is presented with respect to the radial stopper of the axial stopper integrally formed with the yoke, the axial stopper at the other end is manufactured separately from the yoke, and the radial stopper at the other end may be integrally formed with the axial stopper or manufactured separately.
The embodiment of the invention also provides an assembling method of the rotor, which is used for assembling the rotor of any one of the previous embodiments.
Fig. 4 is a flowchart of an assembling method of a rotor according to an embodiment of the present invention, which includes steps S110 to S130.
In step S110, one of the first axial stopper and the second axial stopper is configured to be connected to the pole mounting surface of the yoke. For example, in some embodiments, the first axial stop is configured to connect with a pole mounting surface of the yoke. When the first axial limiter and the magnetic yoke are in a split structure, the first axial limiter is configured to be connected to the magnetic pole mounting surface of the magnetic yoke, for example, by connecting the first axial limiter to the magnetic pole mounting surface of the magnetic yoke via a connecting member. In other embodiments, step S110 includes, for example, machining a first axial limiter at one end of the pole mounting surface of the yoke in the axial direction.
In step S120, the magnetic pole module is placed on the magnetic pole mounting surface of the yoke such that one end of the magnetic pole module in the axial direction of the rotor abuts against one of the first axial limiter and the second axial limiter, which has been connected to the yoke.
Fig. 5 is a flowchart of a step of connecting a pole module to a pole mounting surface of a yoke in an assembling method of a rotor according to an embodiment of the present invention, and in some embodiments, step S120 may specifically include steps S121 to S123.
In step S121, a part of the plurality of pole modules is connected to the pole mounting surface at intervals in the circumferential direction of the rotor to form an interval space between the pole modules arranged at intervals, wherein the interval space has the same size in the circumferential direction as a predetermined number of pole modules arranged successively in the circumferential direction. Wherein in some embodiments the size of the spacing space in the circumferential direction is the same as the size of one pole module in the circumferential direction.
In step S122, the pole modules connected to the pole mounting surfaces are circumferentially limited by a circumferential limiter (e.g., a connector for fixing the pole module 200 to the yoke 100), so that circumferential limitation of a part of the pole modules is achieved.
In step S123, the remaining magnetic pole modules of the plurality of magnetic pole modules are connected to the magnetic pole mounting surface in a filling space manner, so that the remaining magnetic pole modules are limited in the circumferential direction by being pressed against each other in the circumferential direction, and the assembly process and the circumferential limiting process of the remaining magnetic pole modules are completed simultaneously, thereby improving the assembly efficiency.
Then, in step S130, the other one of the first axial limiter and the second axial limiter is detachably connected to the yoke and abuts against the other end of the magnetic pole module in the axial direction. For example, in this embodiment, the second axial limiter may be detachably connected to the yoke and abut against the other end of the magnetic pole module in the axial direction.
According to the assembling method of the rotor, one of the first axial limiting piece and the second axial limiting piece is configured to be connected with the magnetic pole mounting surface of the magnetic yoke, limiting of the magnetic pole module on one axial end of the magnetic yoke can be provided, meanwhile, the magnetic pole module can be assembled through the other axial end of the magnetic yoke, and assembly or disassembly of the magnetic pole module is facilitated. And then the other one of the first axial limiting piece and the second axial limiting piece is detachably connected with the magnetic yoke and is propped against the other end of the magnetic pole module in the axial direction, so that both ends of the magnetic pole module in the axial direction are limited, and the connection stability of the magnetic pole module on the magnetic yoke is improved.
In one of the above examples, step S110 includes machining a first axial limiter at one end of the pole mounting surface of the yoke in the axial direction. In some embodiments, after step S130, the method of assembling a rotor further includes: and fixedly connecting the first radial limiting piece with the first axial limiting piece and/or the magnetic yoke.
It will be appreciated that the first axial stop and the second axial stop may be interchanged in the present method. In another example, step S110 includes forming a second axial limiter by machining at one end of the pole mounting surface of the yoke in the axial direction, and after step S130, the method of assembling the rotor further includes: and fixedly connecting the second radial limiting piece with the second axial limiting piece and/or the magnetic yoke.
In some embodiments, the second radial stop is integrally formed with the second axial stop, and the method of assembling the inventive embodiment comprises: and the second axial limiting piece and the second radial limiting piece are fixedly connected with the magnetic yoke.
In some embodiments, prior to step S130, the assembly method further comprises: forming a pole module. Wherein the step of forming the pole module may include: bonding the non-magnetized magnetic steel on a substrate; sealing and protecting the magnetic steel; carrying out corrosion prevention treatment on the rest positions of the substrate; and carrying out integral magnetization on the magnetic pole module, so that the non-magnetized magnetic steel is converted into a magnet assembly. In some embodiments, a pilot hole is also machined into at least one end of the base plate in the axial direction.
The substrate may include a bearing portion and connection portions connected to opposite ends of the bearing portion, and the step of bonding the non-magnetized magnetic steel to the substrate may be bonding the non-magnetized magnetic steel to the bearing portion of the substrate. The dimensions of the non-magnetized magnetic steel may correspond to the dimensions of the bearing portion such that the connecting portion is exposed. A step structure is formed between the magnet assembly and the connecting part of the substrate. In some embodiments, the positioning hole is formed on a connection portion of at least one end portion of the substrate.
The first radial limiting part can comprise a first connecting hole, and the first connecting hole is connected with the positioning hole on the base plate through the first connecting part, so that the circumferential position of the magnetic pole module of the rotor is further limited, the magnetic pole module is limited by multiple angles on the magnetic yoke, and the connection stability of the magnetic pole module on the magnetic yoke is further improved.
These embodiments are not exhaustive or to limit the invention to the precise embodiments disclosed, and according to the invention described above. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (19)
1. A rotor, comprising:
a yoke (100), wherein an inner peripheral surface or an outer peripheral surface of the yoke (100) is a magnetic pole mounting surface (100 s);
a magnetic pole module (200) mounted to the magnetic pole mounting surface (100 s) of the yoke (100), the magnetic pole module (200) having opposite first and second ends (200 a, 200 b) in an axial direction (X) of the rotor;
a first axial stopper (310) connected to the pole mounting surface (100 s) of the yoke (100) and extending in the radial direction of the rotor, the first axial stopper (310) abutting against a first end (200 a) of the pole module (200) in the axial direction (X) of the rotor;
a second axial stopper (320) connected to the pole mounting surface (100 s) of the yoke (100) and extending in the radial direction, the second axial stopper (320) abutting against the second end (200 b) of the pole module (200) in the axial direction (X),
wherein at least one of the first axial limiting piece (310) and the second axial limiting piece (320) is detachably connected with the magnetic yoke (100),
the magnetic pole module (200) comprises a substrate (210) and a magnet assembly (220), wherein the substrate (210) comprises a bearing part (211), and the magnet assembly (220) is arranged on the bearing part (211) of the substrate (210).
2. The rotor as recited in claim 1, characterized in that the first axial limiter (310) and the second axial limiter (320) are each provided with a radially extending connecting hole.
3. The rotor according to claim 1, characterized in that the pole module (200) has a first surface (S1) facing away from the yoke (100),
the rotor further includes:
-a first radial stop (410) connected to said first axial stop (310) and/or to said yoke (100) and extending in an axial direction (X), said first radial stop (410) being radially abutted against at least part of said first surface (S1) of said pole module (200).
4. A rotor according to claim 3, characterized in that the first radial stop (410) comprises a first connection hole (H1), the first connection hole (H1) fixedly connecting the first radial stop (410) with the base plate (210) by means of a connection.
5. A rotor according to claim 3, characterized in that the first radial stop (410) comprises a second connection hole (H2), the second connection hole (H2) fixedly connecting the first radial stop (410) with the first axial stop (310) by means of a connection, or the second connection hole (H2) fixedly connecting the first radial stop (410) with the yoke (100) by means of a connection.
6. A rotor according to claim 3, characterized in that the first radial stop (410) is integrally formed with the first axial stop (310) and/or the yoke (100).
7. A rotor according to claim 3, characterized in that the rotor further comprises:
-a second radial stop (420) connected to said second axial stop (320) and/or to said yoke (100) and extending in said axial direction (X), said second radial stop (420) being in abutment with at least part of said first surface (S1) of said pole module (200) in said radial direction.
8. The rotor as recited in claim 7, characterized in that the first axial limiter (310) is integrally formed with the yoke (100) and the second radial limiter (420) is integrally formed with the second axial limiter (320).
9. The rotor as recited in claim 7, characterized in that the first axial limiter (310) is integrally formed with the first radial limiter (410), and the second axial limiter (320) is integrally formed with the second radial limiter (420).
10. The rotor according to claim 8 or 9, characterized in that the second radial stop (420) comprises a third connecting hole (H3), the third connecting hole (H3) extending radially through the second axial stop (320), the third connecting hole (H3) fixedly connecting the second radial stop (420), the second axial stop (320) and the yoke (100) by means of a connecting piece.
11. The rotor as set forth in claim 7, wherein,
the base plate (210) comprises connecting parts (212) connected to two ends of the bearing part (211) in the axial direction (X),
wherein the dimension of the magnet assembly (220) in the axial direction (X) is smaller than the dimension of the base plate (210) in the axial direction (X) to expose the connection portion (212) such that the pole module (200) has a stepped structure (200 s) at the first end (200 a) and the second end (200 b), the first radial stopper (410) and the second radial stopper (420) respectively abutting against the stepped structure (200 s).
12. The rotor according to claim 1, wherein one of the pole modules (200) extending in the axial direction (X) is connected to the pole mounting surface (100 s) at the same position in the circumferential direction (Y) of the rotor.
13. A pole module (200) for forming a column of poles of a rotor according to any of claims 1-12, characterized in that the pole module (200) comprises:
a substrate (210) including a carrying portion (211), and connection portions (212) connected to both ends of the carrying portion (211) in an axial direction (X);
a magnet assembly (220) including a plurality of magnetic steels arranged in a row along an axial direction (X), the magnet assembly (220) being disposed on a carrying portion (211) of the substrate (210), a dimension of the magnet assembly (220) in the axial direction (X) being smaller than a dimension of the substrate (210) in the axial direction (X) to expose at least one of the connection portions (212), such that at least one end of the pole module (200) along the axial direction (X) has a stepped structure (200 s);
wherein the pole modules are connected with a yoke of the rotor through the connection portions (212), and at least one of the connection portions (212) includes a positioning hole (200 h) extending in a radial direction of the rotor.
14. An electric machine, comprising:
a stator; and
a rotor according to any one of claims 1 to 12 coaxially sleeved with the stator.
15. A method of assembling a rotor according to any one of claims 1 to 12, comprising:
one of the first axial limiting piece and the second axial limiting piece is configured to be connected with a magnetic pole mounting surface of the magnetic yoke;
connecting a magnetic pole module with the magnetic pole mounting surface of the yoke such that one end of the magnetic pole module in the axial direction of the rotor abuts against one of the first axial limiter and the second axial limiter that has been connected to the yoke;
and the other one of the first axial limiting piece and the second axial limiting piece is detachably connected with the magnetic yoke and is propped against the other end of the magnetic pole module in the axial direction.
16. The method of assembling of claim 15, wherein configuring one of the first axial limiter and the second axial limiter to be coupled to the pole mounting surface of the yoke comprises: the first axial limiter is formed by machining at one end of the pole mounting surface of the yoke in the axial direction,
after the connecting the pole module with the pole mounting surface of the yoke, the assembling method further includes: and fixedly connecting the first radial limiting piece with the first axial limiting piece and/or the magnetic yoke.
17. The method of assembling of claim 15, wherein the method of assembling further comprises: and fixedly connecting the second radial limiting piece with the second axial limiting piece and/or the magnetic yoke.
18. The method of assembling of claim 17, wherein the second radial stop is integrally formed with the second axial stop, the method of assembling comprising:
and the second axial limiting piece and the second radial limiting piece are fixedly connected with the magnetic yoke.
19. The assembly method of claim 15, wherein prior to said connecting a pole module with the pole mounting face of the yoke, the assembly method further comprises: forming the pole module, wherein the forming the pole module comprises:
bonding the non-magnetized magnetic steel on a substrate;
sealing and protecting the magnetic steel;
performing anti-corrosion treatment on the rest positions of the substrate;
carrying out integral magnetization on the magnetic pole module to convert the non-magnetized magnetic steel into a magnet assembly; and
and forming a positioning hole on at least one end part of the base plate in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183678.7A CN112865359B (en) | 2019-11-27 | 2019-11-27 | Rotor, assembling method thereof, magnetic pole module and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183678.7A CN112865359B (en) | 2019-11-27 | 2019-11-27 | Rotor, assembling method thereof, magnetic pole module and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112865359A CN112865359A (en) | 2021-05-28 |
| CN112865359B true CN112865359B (en) | 2023-06-09 |
Family
ID=75984858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911183678.7A Active CN112865359B (en) | 2019-11-27 | 2019-11-27 | Rotor, assembling method thereof, magnetic pole module and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112865359B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614244A (en) * | 2009-07-14 | 2009-12-30 | 宁波宁创自动化设备有限公司 | A kind of sensor bearing structure |
| CN204030768U (en) * | 2014-08-27 | 2014-12-17 | 台州市富达机电有限公司 | The p-m rotor of wind-driven generator |
| CN108880034A (en) * | 2018-07-04 | 2018-11-23 | 北京金风科创风电设备有限公司 | Rotor, assembling method and replacing method of whole-pole module of rotor and motor |
| CN110115536A (en) * | 2018-02-06 | 2019-08-13 | 佛山市顺德区美的电热电器制造有限公司 | Outer DPU disk pack unit, stirring toolbox and food cooking machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997002647A1 (en) * | 1995-07-03 | 1997-01-23 | Fanuc Ltd | Permanent magnet field pole for linear motors |
| FI121291B (en) * | 2007-12-11 | 2010-09-15 | Abb Oy | Permanent magnetic module and electric machine rotor comprising said module |
| KR101629829B1 (en) * | 2014-12-15 | 2016-06-13 | 뉴모텍(주) | Ceiling Fan Motor |
| CN207018134U (en) * | 2017-08-11 | 2018-02-16 | 重庆新大正电子有限公司 | The flywheel of permanent magnet is installed |
| CN208174385U (en) * | 2018-05-28 | 2018-11-30 | 北京金风科创风电设备有限公司 | Generator amature, generator and wind power generating set |
| CN209545285U (en) * | 2019-04-12 | 2019-10-25 | 新疆金风科技股份有限公司 | Magnetic pole module, rotor and motor |
| CN110336394B (en) * | 2019-06-25 | 2022-11-11 | 北京金风科创风电设备有限公司 | Rotor, motor and wind generating set |
-
2019
- 2019-11-27 CN CN201911183678.7A patent/CN112865359B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614244A (en) * | 2009-07-14 | 2009-12-30 | 宁波宁创自动化设备有限公司 | A kind of sensor bearing structure |
| CN204030768U (en) * | 2014-08-27 | 2014-12-17 | 台州市富达机电有限公司 | The p-m rotor of wind-driven generator |
| CN110115536A (en) * | 2018-02-06 | 2019-08-13 | 佛山市顺德区美的电热电器制造有限公司 | Outer DPU disk pack unit, stirring toolbox and food cooking machine |
| CN108880034A (en) * | 2018-07-04 | 2018-11-23 | 北京金风科创风电设备有限公司 | Rotor, assembling method and replacing method of whole-pole module of rotor and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112865359A (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10355544B2 (en) | Rotor member fixed to rotary shaft of electrical rotating machine, rotor, rotary electric machine and method for disassembling rotor | |
| EP2304862B1 (en) | Axial flux machine | |
| JP4586717B2 (en) | motor | |
| US9472984B2 (en) | Rotor for rotating electric machine | |
| JP5685506B2 (en) | Rotating electric machine rotor, rotating electric machine and rotor end face member | |
| US20120187696A1 (en) | Rotating electric machine and wind power generation system | |
| WO2014141987A1 (en) | Rotor structure and electric fluid pump | |
| WO2017141412A1 (en) | Axial gap rotary electric machine | |
| JP2010178493A (en) | Outer rotor type brushless motor | |
| CN112865359B (en) | Rotor, assembling method thereof, magnetic pole module and motor | |
| JP2013009571A (en) | Motor | |
| CN213990318U (en) | Rotor and motor | |
| JP6745674B2 (en) | Rotor and rotating electric machine | |
| JP2006087276A (en) | Rotor for brushless motor, brushless motor, and motor for power steering device | |
| JP2005269717A (en) | Dynamo-electric machine | |
| JP2013172642A (en) | Fitting system for fitting plurality of magnetic members in electric machine using permanent magnet | |
| JP5306706B2 (en) | Rotor with magnet | |
| JP4481024B2 (en) | Electric motor manufacturing jig and electric motor manufacturing method | |
| JP2020198659A (en) | Permanent magnet attachment jig and permanent magnet attachment method | |
| JP2013102651A (en) | Electric motor | |
| JP5696642B2 (en) | Stator fixing structure | |
| JP2008043157A (en) | Inner rotor, and generator with inner rotor | |
| CN112997385A (en) | Brushless electric motor | |
| CN112865358B (en) | Whole-pole magnetic pole module, rotor, manufacturing method of rotor and permanent magnet motor | |
| JP2014212582A (en) | Dynamo-electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |