CN115498835A - Production method of rotor of combined magnetic pole generating device - Google Patents
Production method of rotor of combined magnetic pole generating device Download PDFInfo
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- CN115498835A CN115498835A CN202211123566.4A CN202211123566A CN115498835A CN 115498835 A CN115498835 A CN 115498835A CN 202211123566 A CN202211123566 A CN 202211123566A CN 115498835 A CN115498835 A CN 115498835A
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- rectangular
- rotor
- permanent magnet
- air gap
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- 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
-
- 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
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/15—Sectional machines
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a method for producing a rotor of a combined magnetic pole generating set, which belongs to the technical field of automobile motor electric appliances and is characterized in that: the first rectangular permanent magnet steel, the second rectangular permanent magnet steel and the semicircular permanent magnet steel are respectively arranged in a first rectangular groove, a second rectangular groove and a semicircular groove of a rotor iron core, the third rectangular permanent magnet steel is arranged in a third rectangular groove through pole shoes by screws to form a permanent magnet rotor with N poles and S poles arranged at intervals, the rotor is of a combined magnetic pole structure, a magnetic field of each magnetic pole is provided by a plurality of pieces of permanent magnet steel together, the magnetic field intensity is large, the power density is high, the air gap magnetic density is distributed in a sine mode, the distortion rate is small, and the permanent magnet rotor has the advantages of being high in efficiency, high in power density, compact in structure, reliable in work and the like.
Description
Technical Field
The invention provides a production method of a rotor of a combined magnetic pole power generation device, and belongs to the technical field of automobile motor electric appliances.
Background
The present permanent-magnet generator rotor used on automobile is produced by assembling shaft and a whole cylindrical permanent magnet, then magnetizing the cylindrical permanent magnet according to radial direction to form permanent-magnet rotor with N pole and S pole arranged alternatively, in the course of magnetizing, the magnetic molecule can not be completely ordered, and its residual magnetic induction intensity is low, and because a part of permanent-magnet material between the magnetic poles of whole cylindrical permanent magnet can not be fully magnetized, so that the utilization rate of permanent-magnet material of said rotor is low, the volume of the generator is large, power density is low, and because the permanent-magnet magnetic field can not be regulated, the output voltage of the generator is low when it is operated at low rotating speed, and when it is operated at high rotating speed, the output voltage is high, and is unstable, so that the electric equipment of automobile is easy to be damaged or its service life is shortened, and its service performance can be further improved.
Disclosure of Invention
The invention aims to overcome the defects, and the magnetic field in the air gap of the power generation device is provided by a plurality of pieces of permanent magnet steel together, so that the air gap has high magnetic density, high power density, compact structure, small volume and stable output voltage.
The technical scheme adopted by the invention for solving the technical problem is as follows: the production method of the combined magnetic pole power generation device rotor comprises the following steps:
1) Punching and shearing a circular rotor punching sheet, wherein the outer end of the rotor punching sheet is uniformly provided with first rectangular grooves which penetrate through the thickness of the rotor punching sheet and are in an inverted V shape and are formed by two first rectangular grooves, the outer ends of the first rectangular grooves are not communicated with the excircle of the rotor punching sheet, the size of a non-communicated part is 1.5mm, the inner ends of the two first rectangular grooves in the inverted V shape are not communicated, the size of the non-communicated part is 1.5mm, a second magnetic isolation air gap which penetrates through the thickness of the rotor punching sheet and is in a rectangular shape is arranged right below the inner ends of the two first rectangular grooves in the inverted V shape, the outer ends of the second magnetic isolation air gap in the rectangular shape are not communicated with the inner ends of the two first rectangular grooves in the inverted V shape, the inner ends of the second magnetic isolation air gap in the rectangular shape are not communicated with the excircle of a shaft center hole, the size of the non-communicated part is 2mm, and the left side of the second magnetic isolation air gap in the rectangular shape is provided with a second rectangular slot which penetrates through the thickness of the rotor punching sheet, the central line of the second rectangular groove along the long edge direction is vertical to the central line of the second rectangular magnetic isolation air gap along the long edge direction, the intersection points of the central lines of all the second rectangular grooves along the long edge direction and the central line of the second rectangular magnetic isolation air gap along the long edge direction are on the same circumference, the long edge of the outer side of the second rectangular groove and the short edge of the outer side of the second rectangular magnetic isolation air gap are on the same straight line, the right side of the second rectangular groove is communicated with the second magnetic isolation air gap, the left side of the second rectangular groove is provided with a first magnetic isolation air gap penetrating through the thickness of the rotor sheet, the width of the first magnetic isolation air gap is smaller than that of the second rectangular groove, the inner end of the first magnetic isolation air gap is communicated with the left side of the second rectangular groove, the outer end of the first magnetic isolation air gap is not communicated with the excircle of the rotor sheet, the size of the non-communicated part is 1.5mm, the outer end of the first magnetic isolation air gap is not communicated with the outer end of the first rectangular groove on the right side in an inverted 'eight' shape, the size of the disconnected part is 1.5mm, the inner end of the first magnetic isolation air gap is not connected with the inner end of the first rectangular groove on the right side of the inverted V shape, a third rectangular groove penetrating through the thickness of the rotor punching sheet is arranged between the outer ends of the two first rectangular grooves of the inverted V shape, the outer side of the third rectangular groove is communicated with the excircle of the rotor punching sheet, the length of the third rectangular groove is 2mm longer than that of the third rectangular permanent magnet steel, a round hole penetrating through the thickness of the rotor punching sheet and used for installing an iron rivet is arranged in the middle of the lower side of the third rectangular groove, the upper end of the round hole for installing the iron rivet is not communicated with the lower side of the third rectangular groove, the diameter of the round hole for installing the iron rivet is larger than that of a screw, and the lower end of the round hole for installing the iron rivet is not communicated with the inner ends of the two first rectangular grooves of the inverted V shape;
2) A semicircular groove penetrating through the thickness of the rotor punching sheet is arranged between the outer ends of the two adjacent first rectangular grooves in the shape of the inverted V, the inner arc surface of the semicircular groove faces the excircle of the rotor punching sheet, the left end and the right end of the semicircular groove are not communicated with the excircle of the rotor punching sheet, the size of the non-communicated part is 1.5mm, the left end and the right end of the semicircular groove are not communicated with the outer ends of the two first rectangular grooves in the shape of the inverted V, and by analogy, the rotor punching sheets are laminated in the mode that the burr directions face the same direction, and are riveted by iron rivets to form a rotor iron core;
3) Two identical pieces of first rectangular permanent magnet steel are arranged in an inverted-V-shaped first rectangular groove in a mode that an N pole and an N pole are opposite, a second rectangular permanent magnet steel with an N pole on the outer side is arranged in a second rectangular groove, a third rectangular permanent magnet steel with an N pole on the outer side is arranged in a third rectangular groove through a pole shoe by a screw and is fixed on an iron rivet to form a combined N magnetic pole of the permanent magnet rotor, the other identical pieces of first rectangular permanent magnet steel are arranged in the adjacent other inverted-V-shaped first rectangular groove in a mode that an S pole and the S pole are opposite, the other piece of second rectangular permanent magnet steel with an S pole on the outer side is arranged in the adjacent other second rectangular groove, a semicircular permanent magnet steel with an S pole in the inner arc surface is arranged in the semicircular groove to form a combined S magnetic pole of the permanent magnet rotor, and the like, a permanent magnet rotor with the N pole and the S pole which are mutually spaced is formed, and a rotor iron core is pressed on a shaft to finish the assembly of the rotor of the combined magnetic pole power generation device.
In the combined N magnetic pole of the permanent magnet rotor, the bilateral symmetry line of A third rectangular groove, the bilateral symmetry lines of two first rectangular grooves in the shape of an inverted V and the central line of A second magnetic isolation air gap in the long edge direction of A rectangle are all on the same straight line O-A, in the combined S magnetic pole of the permanent magnet rotor, the bilateral symmetry line of A semicircular groove, the bilateral symmetry lines of two first rectangular grooves in the shape of an inverted V and the central line of the second magnetic isolation air gap in the long edge direction of A rectangle are all on the same straight line O-B, and the central lines of all combined N magnetic poles of the permanent magnet rotor and the straight line O-A rotate 15 degrees in the counterclockwise direction 0 Simultaneously, the central lines of all combined S magnetic poles of the permanent magnet rotor and the straight line O-B rotate in the counterclockwise direction 15 0 。
Compared with the prior art, the permanent magnet rotor has the advantages that the first rectangular permanent magnet steel, the second rectangular permanent magnet steel and the semicircular permanent magnet steel are respectively arranged in the first rectangular groove, the second rectangular groove and the semicircular groove of the rotor iron core, the third rectangular permanent magnet steel is arranged in the third rectangular groove through the pole shoe by the screw, the permanent magnet rotor with N poles and S poles arranged at intervals is formed, the rotor is of a combined magnetic pole structure, the magnetic field of each magnetic pole is provided by a plurality of pieces of permanent magnet steel together, the magnetic field intensity is high, the power density is high, the air gap magnetic density is distributed in a sine mode, the distortion rate is small, and the permanent magnet rotor has the characteristics of high efficiency, high power density, compact structure, reliable work and the like.
Drawings
FIG. 1 is a flow chart of a method of producing a rotor of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, the method comprises the following steps:
1) Punching and shearing a circular rotor punching sheet, wherein first rectangular grooves which penetrate through the thickness of the rotor punching sheet and are in an inverted V shape are uniformly distributed at the outer ends of the rotor punching sheet, the inverted V shape formed by the two first rectangular grooves is an even number, the outer ends of the first rectangular grooves are not communicated with the excircle of the rotor punching sheet, the size of the disconnected parts is 1.5mm, the inner ends of the two first rectangular grooves in the inverted V shape are not communicated, the size of the disconnected parts is 1.5mm, a second magnetic isolation air gap which penetrates through the thickness of the rotor punching sheet and is in a rectangular shape is arranged under the inner ends of the two first rectangular grooves in the inverted V shape, the outer ends of the second magnetic isolation air gap in the rectangular shape are not communicated with the inner ends of the two first rectangular grooves in the inverted V shape, the inner ends of the second magnetic isolation air gap in the rectangular shape are not communicated with the excircle of the shaft center hole, the size of the disconnected parts is 2mm, and a second rectangular groove which penetrates through the thickness of the rotor punching sheet is arranged on the left side of the second magnetic isolation air gap in the rectangular shape, the central line of the second rectangular groove along the long edge direction is vertical to the central line of the second rectangular magnetic isolation air gap along the long edge direction, the intersection points of the central lines of all the second rectangular grooves along the long edge direction and the central line of the second rectangular magnetic isolation air gap along the long edge direction are on the same circumference, the long edge of the outer side of the second rectangular groove and the short edge of the outer side of the second rectangular magnetic isolation air gap are on the same straight line, the right side of the second rectangular groove is communicated with the second magnetic isolation air gap, the left side of the second rectangular groove is provided with a first magnetic isolation air gap penetrating through the thickness of the rotor sheet, the width of the first magnetic isolation air gap is smaller than that of the second rectangular groove, the inner end of the first magnetic isolation air gap is communicated with the left side of the second rectangular groove, the outer end of the first magnetic isolation air gap is not communicated with the excircle of the rotor sheet, the size of the non-communicated part is 1.5mm, the outer end of the first magnetic isolation air gap is not communicated with the outer end of the first rectangular groove on the right side in an inverted 'eight' shape, the size of the disconnected part is 1.5mm, the inner end of the first magnetic isolation air gap is not connected with the inner end of the first rectangular groove on the right side of the inverted V shape, a third rectangular groove penetrating through the thickness of the rotor punching sheet is arranged between the outer ends of the two first rectangular grooves of the inverted V shape, the outer side of the third rectangular groove is communicated with the excircle of the rotor punching sheet, the length of the third rectangular groove is 2mm longer than that of the third rectangular permanent magnet steel, a round hole penetrating through the thickness of the rotor punching sheet and used for installing an iron rivet is arranged in the middle of the lower side of the third rectangular groove, the upper end of the round hole for installing the iron rivet is not communicated with the lower side of the third rectangular groove, the diameter of the round hole for installing the iron rivet is larger than that of a screw, and the lower end of the round hole for installing the iron rivet is not communicated with the inner ends of the two first rectangular grooves of the inverted V shape;
2) A semi-circular groove penetrating through the thickness of the rotor sheet is arranged between the outer ends of the other two adjacent first rectangular grooves in the shape of the inverted V-shaped structure, the inner arc surface of the semi-circular groove faces the outer circle of the rotor sheet, the left end and the right end of the semi-circular groove are not communicated with the outer circle of the rotor sheet, the size of the part which is not communicated with the semi-circular groove is 1.5mm, the left end and the right end of the semi-circular groove are not communicated with the outer ends of the two first rectangular grooves in the shape of the inverted V-shaped structure, and the rotor sheets are overlapped in the same direction along the burr direction and riveted by iron rivets to form a rotor core;
3) Two identical first rectangular permanent magnet steels are arranged in an inverted-splayed first rectangular groove in a mode that an N pole is opposite to the N pole, a second rectangular permanent magnet steel with an N pole on the outer side is arranged in a second rectangular groove, a third rectangular permanent magnet steel with an N pole on the outer side is arranged in a third rectangular groove through a pole shoe by a screw and is fixed on an iron rivet by the screw, so that a combined N magnetic pole of the permanent magnet rotor is formed, the other identical first rectangular permanent magnet steels are arranged in the adjacent other inverted-splayed first rectangular groove in a mode that an S pole is opposite to the S pole, the other second rectangular permanent magnet steel with an S pole on the outer side is arranged in the adjacent other second rectangular groove, a semicircular steel with an S pole on the inner arc surface is arranged in the semicircular groove, so that a combined S magnetic pole of the permanent magnet rotor is formed, the permanent magnet rotor with the N pole and the S pole which are mutually spaced is formed, and the rotor is pressed on a shaft, so that the rotor assembly of the combined magnetic pole power generation device is completed.
In the combined N magnetic pole of the permanent magnet rotor, the bilateral symmetry line of A third rectangular groove, the bilateral symmetry lines of two first rectangular grooves in an inverted V shape and the central line of A second magnetic isolation air gap in A rectangular shape along the long edge direction are all on the same straight line O-A, in the combined S magnetic pole of the permanent magnet rotor, the bilateral symmetry line of A semicircular groove, the bilateral symmetry line of two first rectangular grooves in an inverted V shape and the central line of the second magnetic isolation air gap in A rectangular shape along the long edge direction are all on the same straight line O-B, and the central lines of all combined N magnetic poles of the permanent magnet rotor and the straight line O-A rotate 15 times along the counterclockwise direction 0 Simultaneously, the central lines of all combined S magnetic poles of the permanent magnet rotor and the straight line O-B rotate in the counterclockwise direction 15 0 。
Claims (2)
1. A production method of a combined magnetic pole power generation device rotor is characterized by comprising the following steps:
1) Punching and shearing a circular rotor punching sheet, wherein first rectangular grooves which penetrate through the thickness of the rotor punching sheet and are in an inverted V shape are uniformly distributed at the outer ends of the rotor punching sheet, the inverted V shape formed by the two first rectangular grooves is an even number, the outer ends of the first rectangular grooves are not communicated with the excircle of the rotor punching sheet, the size of the disconnected parts is 1.5mm, the inner ends of the two first rectangular grooves in the inverted V shape are not communicated, the size of the disconnected parts is 1.5mm, a second magnetic isolation air gap which penetrates through the thickness of the rotor punching sheet and is in a rectangular shape is arranged under the inner ends of the two first rectangular grooves in the inverted V shape, the outer ends of the second magnetic isolation air gap in the rectangular shape are not communicated with the inner ends of the two first rectangular grooves in the inverted V shape, the inner ends of the second magnetic isolation air gap in the rectangular shape are not communicated with the excircle of the shaft center hole, the size of the disconnected parts is 2mm, and a second rectangular groove which penetrates through the thickness of the rotor punching sheet is arranged on the left side of the second magnetic isolation air gap in the rectangular shape, the central line of the second rectangular groove along the long edge direction is vertical to the central line of the second rectangular air gap in the long edge direction, the intersection points of the central lines of all the second rectangular grooves along the long edge direction and the central line of the second rectangular air gap in the long edge direction are on the same circumference, the long edge of the outer side of the second rectangular groove and the short edge of the outer side of the second rectangular air gap are on the same straight line, the right side of the second rectangular groove is communicated with the second air gap, the left side of the second rectangular groove is provided with a first air gap penetrating through the thickness of the rotor sheet, the width of the first air gap is smaller than that of the second rectangular groove, the inner end of the first air gap is communicated with the left side of the second rectangular groove, the outer end of the first air gap is not communicated with the excircle of the rotor sheet, the size of the non-communicated part is 1.5mm, the outer end of the first air gap is not communicated with the outer end of the first rectangular groove on the right side in the shape of the inverted 'eight', the size of the disconnected part is 1.5mm, the inner end of the first magnetic isolation air gap is not connected with the inner end of the first rectangular groove on the right side of the inverted V shape, a third rectangular groove penetrating through the thickness of the rotor punching sheet is arranged between the outer ends of the two first rectangular grooves of the inverted V shape, the outer side of the third rectangular groove is communicated with the excircle of the rotor punching sheet, the length of the third rectangular groove is 2mm longer than that of the third rectangular permanent magnet steel, a round hole penetrating through the thickness of the rotor punching sheet and used for installing an iron rivet is arranged in the middle of the lower side of the third rectangular groove, the upper end of the round hole for installing the iron rivet is not communicated with the lower side of the third rectangular groove, the diameter of the round hole for installing the iron rivet is larger than that of a screw, and the lower end of the round hole for installing the iron rivet is not communicated with the inner ends of the two first rectangular grooves of the inverted V shape;
2) A semicircular groove penetrating through the thickness of the rotor punching sheet is arranged between the outer ends of the two adjacent first rectangular grooves in the shape of the inverted V, the inner arc surface of the semicircular groove faces the excircle of the rotor punching sheet, the left end and the right end of the semicircular groove are not communicated with the excircle of the rotor punching sheet, the size of the non-communicated part is 1.5mm, the left end and the right end of the semicircular groove are not communicated with the outer ends of the two first rectangular grooves in the shape of the inverted V, and by analogy, the rotor punching sheets are laminated in the mode that the burr directions face the same direction, and are riveted by iron rivets to form a rotor iron core;
3) Two identical first rectangular permanent magnet steels are arranged in an inverted-splayed first rectangular groove in a mode that an N pole is opposite to the N pole, a second rectangular permanent magnet steel with an N pole on the outer side is arranged in a second rectangular groove, a third rectangular permanent magnet steel with an N pole on the outer side is arranged in a third rectangular groove through a pole shoe by a screw and is fixed on an iron rivet by the screw, so that a combined N magnetic pole of the permanent magnet rotor is formed, the other identical first rectangular permanent magnet steels are arranged in the adjacent other inverted-splayed first rectangular groove in a mode that an S pole is opposite to the S pole, the other second rectangular permanent magnet steel with an S pole on the outer side is arranged in the adjacent other second rectangular groove, a semicircular steel with an S pole on the inner arc surface is arranged in the semicircular groove, so that a combined S magnetic pole of the permanent magnet rotor is formed, the permanent magnet rotor with the N pole and the S pole which are mutually spaced is formed, and the rotor is pressed on a shaft, so that the rotor assembly of the combined magnetic pole power generation device is completed.
2. The combined magnetic pole power generation device rotor production method according to claim 1, characterized in that: in the combined N magnetic pole of the permanent magnet rotor, the bilateral symmetry line of A third rectangular groove, the bilateral symmetry lines of two first rectangular grooves in the shape of an inverted V and the central line of A second magnetic isolation air gap in the long edge direction of A rectangle are all on the same straight line O-A, in the combined S magnetic pole of the permanent magnet rotor, the bilateral symmetry line of A semicircular groove, the bilateral symmetry lines of two first rectangular grooves in the shape of an inverted V and the central line of the second magnetic isolation air gap in the long edge direction of A rectangle are all on the same straight line O-B, and the central lines of all combined N magnetic poles of the permanent magnet rotor and the straight line O-A rotate 15 degrees in the counterclockwise direction 0 Simultaneously, the central lines of all combined S magnetic poles of the permanent magnet rotor and the straight line O-B rotate in the counterclockwise direction 15 0 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211123566.4A CN115498835A (en) | 2022-09-15 | 2022-09-15 | Production method of rotor of combined magnetic pole generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211123566.4A CN115498835A (en) | 2022-09-15 | 2022-09-15 | Production method of rotor of combined magnetic pole generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115498835A true CN115498835A (en) | 2022-12-20 |
Family
ID=84468764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211123566.4A Withdrawn CN115498835A (en) | 2022-09-15 | 2022-09-15 | Production method of rotor of combined magnetic pole generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115498835A (en) |
-
2022
- 2022-09-15 CN CN202211123566.4A patent/CN115498835A/en not_active Withdrawn
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20221220 |
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