CN114189076A - Iron core lamination assembly for motor - Google Patents

Iron core lamination assembly for motor Download PDF

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Publication number
CN114189076A
CN114189076A CN202111424664.7A CN202111424664A CN114189076A CN 114189076 A CN114189076 A CN 114189076A CN 202111424664 A CN202111424664 A CN 202111424664A CN 114189076 A CN114189076 A CN 114189076A
Authority
CN
China
Prior art keywords
core lamination
rivet
assembly
rotor core
rotor
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.)
Pending
Application number
CN202111424664.7A
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Chinese (zh)
Inventor
冯舜
陈江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wanxiang Group Corp
Original Assignee
Wanxiang Group Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wanxiang Group Corp filed Critical Wanxiang Group Corp
Priority to CN202111424664.7A priority Critical patent/CN114189076A/en
Publication of CN114189076A publication Critical patent/CN114189076A/en
Pending legal-status Critical Current

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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
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • 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
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The invention discloses an iron core laminated assembly for a motor, which comprises a rotor iron core laminated assembly, rivets and process holes, wherein the first rivet is arranged on the first rotor iron core laminated assembly around a circle center array, and the right side of each first rivet is provided with a first process hole; a second process hole is formed in the second rotor core lamination assembly around the circle center array, a second rivet is arranged on the right side of each second process hole, and the positions of the second process holes and the second rivets as well as the positions of the first rivets and the positions of the first process holes are alternately arranged; the iron core laminated assembly for the motor adopts rivets to connect iron core laminated sheets to form the assembly, designs the first fabrication hole and the second fabrication hole to avoid the head part of the second rivet and the first rivet and realizes the rotor slant pole and the weight reduction effect; and the related processing equipment can be realized by adopting a universal tool and parts without designing a special tool, so that the manufacturing cost of the rotor core laminated assembly is very low, the manufacturing requirement of a small-batch prototype is met, and the method is also suitable for manufacturing the rotor core laminated assemblies with different sizes.

Description

Iron core lamination assembly for motor
Technical Field
The invention relates to the technical field of iron core laminated assemblies, in particular to an iron core laminated assembly for a motor.
Background
The permanent magnet synchronous motor is composed of a stator, a rotor, an end cover and the like. The stator is basically the same as a common induction motor, and a lamination structure is adopted to reduce iron loss during the operation of the motor. The rotor can be made into solid or laminated by lamination. The armature winding can adopt a concentrated whole-pitch winding, and can also adopt a distributed short-pitch winding and an unconventional winding; the existing permanent magnet synchronous motor rotor core lamination is usually manufactured by adopting a stamping process, a buckling point is formed on the lamination during stamping, an assembly is formed between the lamination and the lamination in a self-buckling mode, and then the rotor core lamination assembly of the motor is formed by a plurality of rotor assembly oblique poles.
Disclosure of Invention
The invention aims to provide an iron core laminated assembly for a motor, which has the functions of avoiding rivet heads, realizing rotor oblique poles and reducing weight, and processing equipment related in the scheme can be realized by adopting general tools and parts without designing special tools, so that the manufacturing cost of the iron core laminated assembly is very low, the iron core laminated assembly is suitable for the manufacturing requirements of small-batch prototype machines, is also suitable for manufacturing the iron core laminated assemblies with different sizes, and can solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the iron core lamination assembly comprises a rotor iron core lamination assembly, rivets and process holes, wherein the iron core lamination assembly is divided into a first rotor iron core lamination assembly and a second rotor iron core lamination assembly, the rivets are divided into first rivets and second rivets, and the process holes are divided into first process holes and second process holes;
a first rivet is arranged on the first rotor core lamination assembly around the circle center array, and first process holes are formed in the right side of the first rivet; and a second process hole is formed in the second rotor core lamination assembly around the circle center array, a second rivet is arranged on the right side of the second process hole, and the positions of the second process hole and the second rivet, the positions of the first rivet and the positions of the first process hole are alternately arranged.
Preferably, the first rotor core lamination assembly and the second rotor core lamination assembly are the same in size, and when the circle centers of the first rotor core lamination assembly and the second rotor core lamination assembly are aligned up and down, the first rivet is inserted into the second technical hole, and the second rivet is inserted into the first technical hole.
Preferably, the circle centers of the first rotor core lamination assembly and the second rotor core lamination assembly are provided with shaft holes, and the rivet and the process hole are arranged outside the shaft holes.
Preferably, permanent magnets are disposed on both the first and second rotor core lamination assemblies in an annular array around the center of a circle.
Preferably, the circumferences of the first rotor core lamination assembly and the second rotor core lamination assembly are respectively provided with a magnetic isolation air groove, and one side of each magnetic isolation air groove, which is far away from the rotor core lamination assembly, is provided with a rotor groove in an annular array manner.
Preferably, the inner wall of the shaft hole is provided with a magnetism isolating layer.
Compared with the prior art, the invention has the following beneficial effects:
1. the iron core laminated assembly for the motor is characterized in that a first rivet is arranged on the first rotor iron core laminated assembly around a circle center array, and first process holes are formed in the right side of the first rivet; a second process hole is formed in the second rotor core lamination assembly around the circle center array, a second rivet is arranged on the right side of each second process hole, and the positions of the second process holes and the second rivets as well as the positions of the first rivets and the positions of the first process holes are alternately arranged; the second fabrication holes and the second rivets are alternately arranged with the first rivets and the first fabrication holes, so that interference of the head portions of the first rivets and the second rivets between the adjacent first rotor core lamination assembly and the second rotor core lamination assembly can be avoided, and the total weight of the rotor can be reduced through the first fabrication holes and the second fabrication holes.
2. The motor comprises an iron core laminated assembly, wherein the centers of a first rotor iron core laminated assembly and a second rotor iron core laminated assembly are both provided with shaft holes, and the inner wall of each shaft hole is provided with a magnetism isolating layer; magnetic isolation air grooves are formed in the circumferences of the first rotor core lamination assembly and the second rotor core lamination assembly, and rotor grooves are formed in one side, away from the rotor core lamination assembly, of each magnetic isolation air groove in an annular array mode; the setting of shaft hole and magnetism air proof air slot has the effect of effectively avoiding the self-interference of magnetic field.
3. The iron core laminated assembly for the motor adopts rivets to connect iron core laminated sheets to form the assembly, designs the first fabrication hole and the second fabrication hole to avoid the head part of the second rivet and the first rivet and realizes the rotor slant pole and the weight reduction effect; the first rotor core laminated assembly and the second rotor core laminated assembly are arranged in an adjacent mode obliquely, so that the effects of avoiding the second rivet and the first rivet and reducing friction force are effectively achieved; the processing equipment that relates to in this scheme all adopts general frock and part can realize, need not to design special frock, therefore rotor core lamination assembly's manufacturing cost is very cheap, is fit for the prototype manufacture demand of small batch to also be applicable to the rotor core lamination assembly of making not unidimensional.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a top plan view schematic of a first rotor core lamination assembly of the present invention;
fig. 2 is a top plan view schematic of a second rotor core lamination assembly of the present invention;
fig. 3 is a side cross-sectional structural view of a first rotor core lamination assembly of the present invention;
fig. 4 is an enlarged structural view at a position a of the core lamination assembly for a motor of the present invention.
In the figure: 1. a first rotor core lamination assembly; 2. a first rivet; 3. a first fabrication hole; 4. a second rivet; 5. a second fabrication hole; 6. a permanent magnet; 7. a shaft hole; 8. a magnetism isolating air tank; 9. a rotor slot; 10. a second rotor core lamination assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the core lamination assembly for a motor includes a rotor core lamination assembly, rivets and fabrication holes, wherein the core lamination assembly is divided into a first rotor core lamination assembly 1 and a second rotor core lamination assembly 10, the rivets are divided into a first rivet 2 and a second rivet 4, and the fabrication holes are divided into a first fabrication hole 3 and a second fabrication hole 5; a first rivet 2 is arranged on the first rotor core laminated assembly 1 around the circle center array, and first process holes 3 are formed in the right side of the first rivet 2; and a second fabrication hole 5 is formed in the second rotor core lamination assembly 10 around the circle center array, a second rivet 4 is arranged on the right side of the second fabrication hole 5, and the positions of the second fabrication hole 5 and the second rivet 4, and the positions of the first rivet 2 and the first fabrication hole 3 are alternately arranged respectively. The second tooling holes 5 and the second rivets 4 are alternately arranged with the first rivets 2 and the first tooling holes 3, so that the total weight of the rotor can be reduced by the first tooling holes 3 and the second tooling holes 5 while avoiding interference of the heads of the first rivets 2 and the second rivets 4 between the adjacent first rotor core lamination assembly 1 and the adjacent second rotor core lamination assembly 10. First rotor core lamination assembly 1 is the same with second rotor core lamination assembly 10 size, and when the centre of a circle of first rotor core lamination assembly 1 and second rotor core lamination assembly 10 aligns from top to bottom, first rivet 2 inserts in second fabrication hole 5, and second rivet 4 inserts in first fabrication hole 3. The assembly can be formed between the iron core laminations, the centers of the first rotor iron core lamination assembly 1 and the second rotor iron core lamination assembly 10 are respectively provided with a shaft hole 7, and the inner wall of the shaft hole 7 is provided with a magnetic isolating layer, so that the self-interference of a magnetic field is effectively avoided; the rivet and the fabrication hole are both arranged outside the shaft hole 7. Permanent magnets 6 are disposed in an annular array around the center of a circle on both the first rotor core lamination assembly 1 and the second rotor core lamination assembly 10. The circumferences of the first rotor core lamination assembly 1 and the second rotor core lamination assembly 10 are respectively provided with a magnetic isolation air groove 8, and one side of the magnetic isolation air groove 8, which is far away from the rotor core lamination assembly, is provided with a rotor groove 9 in an annular array mode. The iron core lamination assembly for the motor adopts rivets to connect iron core laminations to form an assembly, designs a first fabrication hole 3 and a second fabrication hole 5 to avoid the head parts of a second rivet 4 and a first rivet 2 and realizes the rotor slant pole and weight reduction effects; the first rotor core laminated assembly 1 and the second rotor core laminated assembly 10 are arranged in an adjacent mode, so that the effects of avoiding the second rivet 4 and the first rivet 2 and reducing friction force are effectively achieved; the processing equipment that relates to in this scheme all adopts general frock and part can realize, need not to design special frock, therefore the manufacturing cost of rotor core lamination subassembly is very cheap, is fit for the model machine manufacturing demand of small batch volume to also be applicable to and make not unidimensional rotor core lamination subassembly, avoided the limitation of production and effectively improved application scope.
In summary, the core lamination assembly for the motor is divided into a first rotor core lamination assembly 1 and a second rotor core lamination assembly 10, the rivets are divided into a first rivet 2 and a second rivet 4, and the fabrication holes are divided into a first fabrication hole 3 and a second fabrication hole 5; a first rivet 2 is arranged on the first rotor core laminated assembly 1 around the circle center array, and first process holes 3 are formed in the right side of the first rivet 2; and a second fabrication hole 5 is formed in the second rotor core lamination assembly 10 around the circle center array, a second rivet 4 is arranged on the right side of the second fabrication hole 5, and the positions of the second fabrication hole 5 and the second rivet 4, and the positions of the first rivet 2 and the first fabrication hole 3 are alternately arranged respectively. The iron core lamination assembly for the motor adopts rivets to connect iron core laminations to form an assembly, designs a first fabrication hole 3 and a second fabrication hole 5 to avoid the head parts of a second rivet 4 and a first rivet 2 and realizes the rotor slant pole and weight reduction effects; the first rotor core laminated assembly 1 and the second rotor core laminated assembly 10 are arranged in an adjacent mode, so that the effects of avoiding the second rivet 4 and the first rivet 2 and reducing friction force are effectively achieved; the processing equipment that relates to in this scheme all adopts general frock and part can realize, need not to design special frock, therefore the manufacturing cost of rotor core lamination subassembly is very cheap, is fit for the model machine manufacturing demand of small batch volume to also be applicable to and make not unidimensional rotor core lamination subassembly, avoided the limitation of production and effectively improved application scope.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Iron core lamination subassembly for motor, including rotor core lamination subassembly, rivet and fabrication hole, its characterized in that: the iron core lamination assembly is divided into a first rotor iron core lamination assembly (1) and a second rotor iron core lamination assembly (10), the rivet is divided into a first rivet (2) and a second rivet (4), and the fabrication hole is divided into a first fabrication hole (3) and a second fabrication hole (5);
a first rivet (2) is arranged on the first rotor core laminated assembly (1) around the circle center array, and first process holes (3) are formed in the right side of the first rivet (2); and a second process hole (5) is formed in the second rotor core lamination assembly (10) around the circle center array, a second rivet (4) is arranged on the right side of the second process hole (5), and the positions of the second process hole (5) and the second rivet (4) as well as the positions of the first rivet (2) and the first process hole (3) are alternately arranged respectively.
2. The core lamination assembly for a motor of claim 1, wherein: first rotor core lamination subassembly (1) is the same with second rotor core lamination subassembly (10) size, and when the centre of a circle of first rotor core lamination subassembly (1) and second rotor core lamination subassembly (10) was aligned from top to bottom, first rivet (2) inserted in second fabrication hole (5), and second rivet (4) inserted in first fabrication hole (3).
3. The core lamination assembly for a motor of claim 1, wherein: shaft holes (7) are formed in the circle centers of the first rotor core lamination assembly (1) and the second rotor core lamination assembly (10), and rivets and fabrication holes are arranged on the outer side of the shaft holes (7).
4. The core lamination assembly for a motor of claim 1, wherein: permanent magnets (6) are arranged on the first rotor core lamination assembly (1) and the second rotor core lamination assembly (10) in an annular array around the circle center.
5. The core lamination assembly for a motor of claim 4, wherein: first rotor core lamination subassembly (1) and second rotor core lamination subassembly (10) circumference department all is equipped with magnetic isolation air groove (8), and magnetic isolation air groove (8) keep away from one side annular array of rotor core lamination subassembly and are equipped with rotor groove (9).
6. A core lamination assembly for a motor according to claim 3, wherein: and the inner wall of the shaft hole (7) is provided with a magnetism isolating layer.
CN202111424664.7A 2021-11-27 2021-11-27 Iron core lamination assembly for motor Pending CN114189076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111424664.7A CN114189076A (en) 2021-11-27 2021-11-27 Iron core lamination assembly for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111424664.7A CN114189076A (en) 2021-11-27 2021-11-27 Iron core lamination assembly for motor

Publications (1)

Publication Number Publication Date
CN114189076A true CN114189076A (en) 2022-03-15

Family

ID=80541622

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111424664.7A Pending CN114189076A (en) 2021-11-27 2021-11-27 Iron core lamination assembly for motor

Country Status (1)

Country Link
CN (1) CN114189076A (en)

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