CN220544762U - High-efficiency permanent magnet synchronous motor rotor - Google Patents
High-efficiency permanent magnet synchronous motor rotor Download PDFInfo
- Publication number
- CN220544762U CN220544762U CN202321954311.2U CN202321954311U CN220544762U CN 220544762 U CN220544762 U CN 220544762U CN 202321954311 U CN202321954311 U CN 202321954311U CN 220544762 U CN220544762 U CN 220544762U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- magnetic
- magnetic pole
- yoke
- 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.)
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Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 15
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Abstract
A high-efficiency permanent magnet synchronous motor rotor comprises a magnetic yoke (1), a permanent magnet (7) and magnetic poles (3), wherein the magnetic yoke and the magnetic poles are formed by stacking silicon steel sheets, the magnetic poles extend outwards along the radial direction from the magnetic yoke, rectangular holes (2) are formed in the magnetic poles (3), the permanent magnet (7) is inserted into the rectangular holes (2) in a matched mode, a plurality of guide strips (8) are uniformly arranged at the top ends of the magnetic poles, two ends of the guide strips are respectively connected with a bus plate (9), round holes (6) are formed in the centers of the magnetic yokes, and a rotating shaft (10) is pressed in the round holes (6). The components of the rotor of the high-efficiency permanent magnet synchronous motor are convenient to manufacture and assemble, and the production efficiency can be improved; the assembly error of the magnetic pole and the magnetic yoke of the split structure can be avoided, the problem that the connection strength of the magnetic pole and the magnetic yoke of the split structure is low can be solved, the rotor does not vibrate during rotation, and the power loss of the motor can be reduced.
Description
Technical Field
The utility model relates to a permanent magnet synchronous motor rotor.
Background
The rotor of the permanent magnet synchronous motor comprises a magnet yoke, a permanent magnet and magnetic poles, wherein the magnet yoke and the magnetic poles are made of silicon steel sheets, the permanent magnet is positioned between the magnet yoke and the magnetic poles, the cross section of the rotor is in a cross shape, the connecting structure of the permanent magnet, the magnet yoke and the magnetic poles is complex, the assembly efficiency is low, the connecting strength is not high, and vibration is easy to generate when the rotor rotates.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the high-efficiency permanent magnet synchronous motor rotor, and the yoke, the permanent magnet and the magnetic poles of the rotor are high in connection strength, so that the rotor can be assembled conveniently.
The technical scheme of the utility model is that the high-efficiency permanent magnet synchronous motor rotor is cross-arm-shaped in section, each arm body comprises a magnet yoke 1, a permanent magnet 7 and a magnetic pole 3, the magnet yoke and the magnetic pole are formed by stacking silicon steel sheets, the high-efficiency permanent magnet synchronous motor rotor is characterized in that the magnetic pole extends outwards along the radial direction from the magnet yoke, a rectangular hole 2 is formed in the magnetic pole 3, the width dimension of the magnetic pole is slightly larger than the length dimension of the rectangular hole, the permanent magnet 7 is cooperatively inserted into the rectangular hole 2, a plurality of grooves 5 are uniformly formed in the top end of the magnetic pole, guide strips 8 are arranged in the grooves 5, two ends of each guide strip are respectively connected with a bus plate 9, the guide strips 8 and the bus plate 9 are made of aluminum materials, a round hole 6 is formed in the center of the magnet yoke, and a rotating shaft 10 is pressed in the round hole 6.
Compared with the prior art, the utility model has the advantages that the magnetic poles and the magnetic yoke are integrated, the symmetry between the magnetic poles is high, the assembly error of the magnetic poles and the magnetic yoke of the split structure can be avoided, the problem of low connection strength of the magnetic poles and the magnetic yoke of the split structure can be solved, the rotor does not vibrate during rotation, the power loss of the motor can be reduced, the permanent magnet can be conveniently inserted in the magnetic poles, and the assembly efficiency of the rotor is high.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a left side view of fig. 1, with the busbar and the deflector strip removed at the B portion and the busbar removed at the C portion.
Fig. 3 is a shape of a silicon steel sheet.
A drawing mark; 1-magnet yoke, 2-rectangular hole, 3-magnetic pole, 4-cap, 5-slot, 6-round hole, 7-permanent magnet, 8-flow guiding strip, 9-bus plate, 10-rotating shaft.
Detailed Description
The cross section of the high-efficiency permanent magnet synchronous motor rotor is in a cross arm shape, each arm body comprises a magnet yoke 1, a permanent magnet 7 and a magnetic pole 3, the magnet yoke and the magnetic pole are formed by stacking silicon steel sheets, the high-efficiency permanent magnet synchronous motor rotor is characterized in that the magnetic pole extends outwards along the radial direction from the magnet yoke, a rectangular hole 2 is formed in the magnetic pole 3, the width dimension of the magnetic pole is slightly larger than the length dimension of the rectangular hole, the width direction of the magnetic pole is vertical to the radial direction, the length direction of the rectangular hole is vertical to the radial direction, the permanent magnet 7 is cooperatively inserted in the rectangular hole 2, the magnetization directions of the permanent magnets are radial, the polarities of adjacent permanent magnets are different, five grooves 5 are uniformly formed in the top end of the magnetic pole, guide strips 8 are installed in the grooves 5, two ends of each guide strip are respectively connected with a bus plate 9, the guide strips 8 and the bus plate 9 are made of aluminum materials, the center of the magnet yoke is provided with a round hole 6, and a rotating shaft 10 is in the round hole 6 in a crimping manner.
The width dimension of the magnetic pole is 3 to 5 mm, preferably 4 mm, larger than the length dimension of the rectangular hole, and the closer the width dimension of the magnetic pole is to the length dimension of the rectangular hole, the better the magnetic leakage prevention effect is, but the too small width dimension of the magnetic pole can affect the strength of the rotor.
In order to improve the self-starting performance of the rotor, the top ends of the magnetic poles extend to two sides to form a cap part 4, so that the number of the flow guide strips is seven, and the number of the flow guide strips can be increased.
The manufacturing method of the high-efficiency permanent magnet synchronous motor rotor comprises the steps of simultaneously punching a magnetic yoke, magnetic poles, a cap part, rectangular holes, grooves and round holes on a round silicon steel sheet, laminating the punched silicon steel sheets, forming by a casting method, forming a flow guide bar and a bus plate, crimping a rotating shaft in the magnetic yoke, and inserting a permanent magnet into the rectangular holes.
The components of the rotor of the high-efficiency permanent magnet synchronous motor are convenient to manufacture and assemble, and the production efficiency can be improved;
the assembly error of the magnetic pole and the magnetic yoke of the split structure can be avoided, the problem that the connection strength of the magnetic pole and the magnetic yoke of the split structure is low can be solved, the rotor does not vibrate during rotation, and the power loss of the motor can be reduced.
Claims (3)
1. The utility model provides a high-efficient PMSM rotor, its cross-section is the cross arm shape, each arm body all includes yoke (1), permanent magnet (7) and magnetic pole (3), yoke and magnetic pole are formed by the silicon steel sheet system, characterized by, radial outside extension on the magnetic pole is followed to the magnetic pole, be equipped with rectangular hole (2) on magnetic pole (3), the width dimension of magnetic pole is slightly greater than rectangular hole's length dimension, permanent magnet (7) are inserted in rectangular hole (2) with the cooperation, uniformly be equipped with a plurality of slots (5) on the top of magnetic pole, install water conservancy diversion strip (8) in slot (5), the both ends of water conservancy diversion strip are connected with busbar (9) respectively, water conservancy diversion strip and busbar are made by the aluminum product material, the center of yoke is equipped with round hole (6), pivot (10) crimping is in round hole (6).
2. A rotor for a high efficiency permanent magnet synchronous motor according to claim 1, characterized in that the width dimension of the poles (3) is 4 mm larger than the length dimension of the rectangular holes (2).
3. A rotor for a high efficiency permanent magnet synchronous motor according to claim 1 or 2, characterized in that the top ends of the poles extend to both sides to form a cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321954311.2U CN220544762U (en) | 2023-07-25 | 2023-07-25 | High-efficiency permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321954311.2U CN220544762U (en) | 2023-07-25 | 2023-07-25 | High-efficiency permanent magnet synchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220544762U true CN220544762U (en) | 2024-02-27 |
Family
ID=89963114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321954311.2U Active CN220544762U (en) | 2023-07-25 | 2023-07-25 | High-efficiency permanent magnet synchronous motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220544762U (en) |
-
2023
- 2023-07-25 CN CN202321954311.2U patent/CN220544762U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |