CN115102343A - Magnetic shoe installation method of motor rotor - Google Patents
Magnetic shoe installation method of motor rotor Download PDFInfo
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- CN115102343A CN115102343A CN202210900900.6A CN202210900900A CN115102343A CN 115102343 A CN115102343 A CN 115102343A CN 202210900900 A CN202210900900 A CN 202210900900A CN 115102343 A CN115102343 A CN 115102343A
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- magnetic shoe
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- shoe
- rotor
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 title claims abstract description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to a magnetic shoe installation method of a motor rotor, which comprises the motor rotor and a magnetic shoe, wherein the magnetic shoe optimizes the magnetic wire orientation in the magnetic shoe through a magnetic wire orientation module, so that magnetic wires which are parallel to each other and are obliquely oriented along the left-right direction are formed in the magnetic shoe, and the magnetic wires among the magnetic shoe groups with different polarities can pass through the inner side of the motor rotor more and participate in the action with a stator coil of the motor, thereby ensuring better power of the motor and being beneficial to improving the performance of the motor.
Description
Technical Field
The invention relates to the technical field of magnetic shoe installation, in particular to a magnetic shoe installation method of a motor rotor.
Background
As shown in fig. 1 and 2, in the production and processing process of the motor magnetic shoe, the N-pole magnetic shoe and the S-pole magnetic shoe can be respectively processed by changing the current direction of the magnetizing coil.
As shown in fig. 3, the magnetic wires inside the conventional motor magnetic shoe generally use the radial direction of the motor magnetic shoe as an orientation direction, the motor magnetic shoes with different polarities are distributed along the circumferential direction of the motor rotor in a quincunx manner, and during the use of the motor magnetic shoe, a large number of magnetic wires between the magnetic shoes with different polarities pass through the outside of the motor rotor, and the magnetic wires cannot act with the stator coil inside the rotor to provide power for the motor, which restricts the improvement of the motor performance.
Therefore, further improvements are needed.
Disclosure of Invention
The present invention aims to overcome the defects of the prior art and provide a method for mounting a magnetic shoe of a rotor of an electric machine, which aims to solve at least one of the technical problems in the prior art to a certain extent.
The purpose of the invention is realized as follows:
a method for installing a magnetic shoe of a motor rotor comprises the motor rotor and the magnetic shoe, wherein the motor rotor and the magnetic shoe are assembled and connected through the following steps.
Step one, arranging a magnetic wire orientation module on a processing mould, so that magnetic wires which are parallel to each other and are oriented obliquely in the left-right direction are formed in the magnetic shoe, wherein the magnetic wire orientation module enables the magnetic wires in the magnetic shoe with the N pole to be arranged obliquely upwards in the left-right direction, and the magnetic wires in the magnetic shoe with the S pole to be arranged obliquely downwards in the left-right direction.
And step two, arranging two N-pole magnetic shoes adjacently and symmetrically to form an N-pole magnetic shoe group, enabling the magnetic wires between the two N-pole magnetic shoes to be oppositely overlapped, and simultaneously arranging two S-pole magnetic shoes adjacently and symmetrically to form an S-pole magnetic shoe group, and enabling the magnetic wires between the two S-pole magnetic shoes to be oppositely overlapped.
And thirdly, the N-pole magnetic shoe group and the S-pole magnetic shoe group are mutually attached and distributed along the circumferential direction of the motor rotor in a plum blossom bamboo mode to form a head-to-tail magnetic conduction structure.
The adjacent N pole magnetic shoes are closely attached to each other.
The adjacent S pole magnetic tiles are closely attached to each other.
The adjacent N pole magnetic shoe group and the S pole magnetic shoe group are arranged in a mutual clinging manner.
The magnetic conduction structure comprises 8N pole magnetic shoe sets and 8S pole magnetic shoe sets.
The magnetic wires inside the magnetic shoe are oriented at an angle A =45 DEG with the horizontal direction.
And the motor rotor is provided with a limiting part for positioning the magnetic shoe.
The magnetic wire orientation module comprises an upper die and a lower die, a magnetizing coil is arranged around the outer side of the upper die and/or the lower die, a core hole is formed in the lower die, a die core is movably connected with the lower die, the die core and the upper die are machined and formed through magnetic materials, a lower non-magnetic conducting block is arranged on one side, facing the upper die, of the die core, an upper non-magnetic conducting block is arranged on one side, facing the core hole, of the upper die, a forming cavity corresponding to the shape of a magnetic shoe is formed between the upper non-magnetic conducting block and the lower non-magnetic conducting block, a first magnetic conducting surface obliquely arranged in the left-right direction is formed at the position, corresponding to the lower part of the lower non-magnetic conducting block, of the die core, and a second magnetic conducting surface obliquely arranged in the left-right direction is formed at the position, corresponding to the upper part of the upper non-magnetic conducting block.
The beneficial effects of the invention are:
the magnetic shoe optimizes the magnetic wire orientation in the magnetic shoe through the magnetic wire orientation module, so that magnetic wires which are parallel to each other and are obliquely oriented in the left-right direction are formed in the magnetic shoe, and the magnetic wires among the magnetic shoe groups with different polarities can more pass through the inner side of the motor rotor and participate in the action with a stator coil of the motor, so that the power of the motor is better, and the performance of the motor is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a first structural schematic diagram of a mold for processing and magnetizing a magnetic shoe in the prior art.
Fig. 2 is a second schematic structural diagram of a mold for processing and magnetizing a magnetic shoe in the prior art.
Fig. 3 is a schematic view of the distribution of magnetic lines of flux between magnetic shoes on a rotor of a prior art electric machine.
Figure 4 is a first block diagram of a magnet wire orientation module in accordance with an embodiment of the present invention.
Figure 5 is a second block diagram of a magnetic wire orientation module in accordance with an embodiment of the present invention.
Fig. 6 is a schematic view of the orientation of the magnet wires of N-pole and S-pole magnetic tiles processed in accordance with an embodiment of the present invention.
Figure 7 is a schematic magnetic wire distribution diagram of an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 4-8, the method for installing the magnetic shoe of the motor rotor comprises a motor rotor 7 and the magnetic shoe 5, wherein the motor rotor 7 and the magnetic shoe 5 are assembled and connected through the following steps:
step one, arranging a magnetic wire orientation module on the processing mould, so that magnetic wires which are parallel to each other and are obliquely oriented in the left-right direction are formed in the magnetic shoe 5, wherein the magnetic wires in the magnetic shoe 5 with the N pole are obliquely arranged upwards in the left-right direction, and the magnetic wires in the magnetic shoe 5 with the S pole are obliquely arranged downwards in the left-right direction.
And step two, arranging two N-pole magnetic shoes 5 adjacently and symmetrically to form an N-pole magnetic shoe group, enabling the magnetic wires between the two N-pole magnetic shoes 5 to be oppositely overlapped, and simultaneously arranging two S-pole magnetic shoes 5 adjacently and symmetrically to form an S-pole magnetic shoe group, and enabling the magnetic wires between the two S-pole magnetic shoes 5 to be oppositely overlapped.
And thirdly, the N-pole magnetic shoe group and the S-pole magnetic shoe group are mutually attached and distributed along the circumferential direction of the motor rotor in a plum blossom bamboo mode to form a head-to-tail magnetic conduction structure.
The magnetic shoe 5 optimizes the magnetic wire orientation in the magnetic shoe through the magnetic wire orientation module, so that magnetic wires which are parallel to each other and are obliquely oriented along the left-right direction are formed in the magnetic shoe 5, and the magnetic wires among the magnetic shoe groups with different polarities can more pass through the inner side of the motor rotor 7 and participate in the action with a stator coil of the motor, thereby ensuring better power of the motor and being beneficial to improving the performance of the motor.
Further, the adjacent N pole magnetic shoes 5 are closely arranged to each other, so that the magnetic wires between the adjacent N pole magnetic shoes 5 can be better overlapped, and the magnetic wires can be better looped with the magnetic wires of the S pole magnetic shoes 5 adjacent to the N pole magnetic shoes 5.
Further, the adjacent S-pole magnetic shoes 5 are closely arranged to each other, so that the magnetic wires between the adjacent S-pole magnetic shoes 5 can be better overlapped, and the magnetic wires can be better looped with the magnetic wires of the N-pole magnetic shoes 5 adjacent to the S-pole magnetic shoes 5.
Further, the adjacent N pole shoe group and S pole shoe group are closely attached to each other, so that more cast a sidelong glance of magnet wires between the N pole shoe group and S pole shoe group can pass through the inside of the magnet shoe 5 and the inside of the motor rotor 7, and the number of magnet wires passing through the outside of the motor rotor 7 is reduced.
Further, the magnetic conduction structure comprises 8N pole magnetic shoe groups and 8S pole magnetic shoe groups.
Further, the orientation of the magnet wires inside the magnet shoe 5 forms an angle a with the horizontal direction, a =45 °, and the orientation of the magnet wires of the magnet shoe 5 is made more reasonable by optimizing the angle of the orientation of the magnet wires inside the magnet shoe 5.
Further, as shown in fig. 8, a limiting portion 71 for positioning the magnetic shoe 5 is disposed on the motor rotor 7, and the magnetic shoe 5 can improve the connection strength with the motor rotor 7 under the action of the limiting portion 71, so as to prevent the magnetic shoe 5 from falling off from the motor rotor 7.
Furthermore, the magnetic wire orientation module comprises an upper die and a lower die, a magnetizing coil 6 is arranged around the outer side of the upper die 1 and/or the lower die 2, a core hole 21 is arranged on the lower die 2, a die core 3 movably connected with the core hole 21 is arranged in the core hole 21, the die core 3 and the upper die 1 are processed and formed by magnetic conductive materials, a lower non-magnetic conductive block 41 is arranged on one side of the die core 3 facing the upper die 1, an upper non-magnetic conductive block 42 is arranged on one side of the upper die 1 facing the core hole 21, a forming cavity corresponding to the shape of the magnetic shoe 5 is formed between the upper non-magnetic conductive block 42 and the lower non-magnetic conductive block 41, a first magnetic conductive surface 31 obliquely arranged along the left-right direction is formed at the position below the lower non-magnetic conductive block 41 corresponding to the die core 3, a second magnetic conductive surface 11 obliquely arranged along the left-right direction is formed at the position above the upper non-magnetic conductive block 42 corresponding to the upper die 1, and the upper non-magnetic conductive block 42 and the lower non-magnetic conductive block 41 can play a role in forming and positioning for the magnetic shoe 5, and the magnet wires generated by the magnetizing coil can pass through the magnetic shoe 5 according to the preset angle between the first magnetic conduction surface 31 and the second magnetic conduction surface 11, so that the magnetic shoe 5 obtains the magnetic wire orientation in a specific direction.
As shown in fig. 4, when the N-pole magnetic shoe is machined, the current direction of the magnetizing coil 6 is counterclockwise in a plan view, the magnetic wire generated by the magnetizing coil 6 passes through the magnetic shoe 5 from bottom to top according to the ampere rule to form the N-pole magnetic shoe, the first magnetic conductive surface 31 corresponding to the machined N-pole magnetic shoe is obliquely arranged in the left-right direction, and the corresponding second magnetic conductive surface 11 is obliquely arranged in the left-right direction. (in the figure, the cross symbol of the magnetizing coil represents that the current is from outside to inside in the cross section direction, and the dot symbol of the magnetizing coil represents that the current is from inside to outside in the cross section direction, so that the current direction of the magnetizing coil 6 in the top view state in FIG. 4 is counterclockwise)
As shown in fig. 5, when the S-pole magnetic shoe is processed, the current direction of the magnetizing coil 6 is clockwise in a plan view, according to the ampere rule, the magnetic wire generated by the magnetizing coil 6 passes through the magnetic shoe 5 from top to bottom to form the S-pole magnetic shoe, the first magnetic conductive surface 31 corresponding to the processed S-pole magnetic shoe is obliquely arranged in the left-right direction, and the corresponding second magnetic conductive surface 11 is obliquely arranged in the left-right direction. (in the figure, the cross symbol of the magnetizing coil indicates that the current is from the outside to the inside in the cross section direction, and the dot symbol of the magnetizing coil indicates that the current is from the inside to the outside in the cross section direction, so that the current direction of the magnetizing coil 6 in the plan view of FIG. 5 is clockwise)
When the magnetic shoe 5 is assembled with the motor rotor 7, the magnetic shoe 5 is arranged according to the mode shown in fig. 7, namely, two magnetic shoes 5 with the same polarity are arranged symmetrically along the radial direction, each magnetic shoe is arranged closely adjacent to the other magnetic shoe, then N-pole magnetic shoes and S-pole magnetic shoes with the same polarity are distributed in a staggered mode in pairs, and the adjacent N-pole magnetic shoes and S-pole magnetic shoes form a magnetic wire loop which can be closed.
As shown in fig. 6, because the magnetic wire orientations inside the N-pole magnetic shoe and the S-pole magnetic shoe are both arranged obliquely, and as shown in fig. 7, the adjacent N-pole magnetic shoe and the S-pole magnetic shoe form a magnetic wire loop which can be closed, and because the magnetic wire orientations inside the magnetic shoe 5 are oblique, most of the magnetic wire loops are positioned between the N-pole magnetic shoe and the S-pole magnetic shoe and the adjacent N-pole magnetic shoe and S-pole magnetic shoe correspond to the spatial position inside the motor rotor, thereby increasing the magnetic wire passing from the inside direction of the motor rotor and improving the performance of the motor.
The above examples are only preferred embodiments of the present invention, and other embodiments of the present invention are possible. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.
Claims (8)
1. The magnetic shoe installation method of the motor rotor comprises the motor rotor (7) and the magnetic shoe (5), and is characterized in that the motor rotor (7) and the magnetic shoe (5) are assembled and connected through the following steps:
step one, arranging a magnetic wire orientation module on a processing mould, so that magnetic wires which are parallel to each other and are oriented obliquely along the left-right direction are formed in the magnetic shoe (5), wherein the magnetic wires in the magnetic shoe (5) with the N pole are arranged obliquely upwards along the left-right direction, and the magnetic wires in the magnetic shoe (5) with the S pole are arranged obliquely downwards along the left-right direction;
step two, two N-pole magnetic shoes (5) are adjacently and symmetrically arranged to form an N-pole magnetic shoe group, so that magnetic wires between the two N-pole magnetic shoes (5) are oppositely overlapped, and simultaneously, two S-pole magnetic shoes (5) are adjacently and symmetrically arranged to form an S-pole magnetic shoe group, so that the magnetic wires between the two S-pole magnetic shoes (5) are oppositely overlapped;
and thirdly, the N-pole magnetic shoe group and the S-pole magnetic shoe group are mutually attached and distributed along the circumferential direction of the motor rotor in a plum blossom bamboo mode to form a magnetic conduction structure connected end to end.
2. The method for mounting the magnetic shoe of the rotor of the motor according to claim 1, wherein: the adjacent N-pole magnetic shoes (5) are arranged in a mutual clinging manner.
3. The method for mounting the magnetic shoe of the rotor of the motor according to claim 1, wherein: the adjacent S pole magnetic shoes (5) are closely attached to each other.
4. The method for mounting the magnetic shoe of the rotor of the motor according to claim 1, wherein: the adjacent N pole magnetic shoe groups and the S pole magnetic shoe groups are arranged in a mutual clinging manner.
5. The method for mounting the magnetic shoe of the rotor of the motor according to claim 1, wherein: the magnetic conduction structure comprises 8N pole magnetic shoe groups and 8S pole magnetic shoe groups.
6. The method for mounting the magnetic shoe of the rotor of the motor according to claim 1, wherein: the magnetic wires inside the magnetic shoe (5) are oriented at an angle A with the horizontal direction, A =45 deg.
7. The method for mounting the magnetic shoe of the rotor of the motor according to claim 1, wherein: and a limiting part (71) for positioning the magnetic shoe (5) is arranged on the motor rotor (7).
8. A method of mounting magnetic shoes of a rotor of an electric machine according to any one of claims 1 to 7, characterized by: the magnetic wire orientation module comprises an upper die (1) and a lower die (2), a magnetizing coil (6) is arranged around the outer side of the upper die (1) and/or the lower die (2), a core hole (21) is formed in the lower die (2), a die core (3) movably connected with the die core hole is arranged in the core hole (21), the die core (3) and the upper die (1) are machined and formed through magnetic conduction materials, a lower non-magnetic conduction block (41) is arranged on one side of the die core (3) facing the upper die (1), a first magnetic conduction surface (31) obliquely arranged along the left and right direction is formed at the position, below the lower non-magnetic conduction block (41), of the upper die (1), corresponding to the upper non-magnetic conduction block (42), of the lower non-magnetic conduction block (41), a second obliquely arranged along the left and right direction is formed at the position, above the upper non-magnetic conduction block (42), of the upper die (1) A magnetic conductive surface (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210900900.6A CN115102343A (en) | 2022-07-28 | 2022-07-28 | Magnetic shoe installation method of motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210900900.6A CN115102343A (en) | 2022-07-28 | 2022-07-28 | Magnetic shoe installation method of motor rotor |
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| Publication Number | Publication Date |
|---|---|
| CN115102343A true CN115102343A (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210900900.6A Pending CN115102343A (en) | 2022-07-28 | 2022-07-28 | Magnetic shoe installation method of motor rotor |
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| CN (1) | CN115102343A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007093569A (en) * | 2005-08-30 | 2007-04-12 | Hitachi Metals Ltd | Permanent magnet used for measurement of displacement, displacement amount sensor unit, and manufacturing method therefor |
| JP2017121118A (en) * | 2015-12-28 | 2017-07-06 | マツダ株式会社 | Method of manufacturing anisotropic magnet, method of manufacturing anisotropic soft magnetic material and method of manufacturing rotor of dynamo-electric machine |
| JP2018092988A (en) * | 2016-11-30 | 2018-06-14 | 橘コンサルタンツ株式会社 | Multiple magnetization unit permanent magnet, manufacturing method thereof, mold, and magnetic circuit |
| CN111600405A (en) * | 2019-02-21 | 2020-08-28 | 北京金风科创风电设备有限公司 | Magnetic pole module, rotor, assembly method of rotor and motor |
-
2022
- 2022-07-28 CN CN202210900900.6A patent/CN115102343A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007093569A (en) * | 2005-08-30 | 2007-04-12 | Hitachi Metals Ltd | Permanent magnet used for measurement of displacement, displacement amount sensor unit, and manufacturing method therefor |
| JP2017121118A (en) * | 2015-12-28 | 2017-07-06 | マツダ株式会社 | Method of manufacturing anisotropic magnet, method of manufacturing anisotropic soft magnetic material and method of manufacturing rotor of dynamo-electric machine |
| JP2018092988A (en) * | 2016-11-30 | 2018-06-14 | 橘コンサルタンツ株式会社 | Multiple magnetization unit permanent magnet, manufacturing method thereof, mold, and magnetic circuit |
| CN111600405A (en) * | 2019-02-21 | 2020-08-28 | 北京金风科创风电设备有限公司 | Magnetic pole module, rotor, assembly method of rotor and motor |
Non-Patent Citations (1)
| Title |
|---|
| 李正: "《永磁电机的设计》", vol. 1, 29 February 2016, 西安电子科技大学出版社, pages: 3 - 82 * |
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