CN207819579U - A kind of permanent magnetic electric machine rotor iron core - Google Patents
A kind of permanent magnetic electric machine rotor iron core Download PDFInfo
- Publication number
- CN207819579U CN207819579U CN201721791484.1U CN201721791484U CN207819579U CN 207819579 U CN207819579 U CN 207819579U CN 201721791484 U CN201721791484 U CN 201721791484U CN 207819579 U CN207819579 U CN 207819579U
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- rotor punching
- rotor
- keyway
- punching
- end plate
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of permanent magnetic electric machine rotor iron cores.It includes multiple rotor punchings I, rotor punching II, keyway I is arranged in the middle part of the rotor punching I, keyway II is arranged in the middle part of the rotor punching II, multipair magnetic slot I is uniformly arranged on the circumference of rotor punching I, multipair magnetic slot II is uniformly arranged on the circumference of rotor punching II, rotor punching I, rotor punching II be stacked alternately after both ends be arranged end plate, the keyway I is corresponding with II position of keyway, magnetic slot I on rotor punching I and the opposite deflection certain angle of magnetic slot II on rotor punching II, the end plate and rotor punching I, rotor punching II is fixed using rivet.The utility model makes rotor punching realize step skewed pole, reduces cogging torque, reduces noise, and simple in structure, processing technology is simple, can mechanization batch production.
Description
Technical field
The utility model belongs to technical field of motors, is related to a kind of permanent magnetic electric machine rotor iron core, especially suitable for low speed electricity
Electrical automobile driving motor.
Background technology
Permanent magnet synchronous motor is efficient at present, the light-weight driving motor for being widely used in low-speed electronic vehicle, but permanent magnetism
For motor because there is cogging torque, starting current is big, torque has fluctuation, there is the shortcomings that noise.In order to reduce cogging torque, reduce
Noise reduces starting current, has a good improvement using the scheme of skewed stator slot, but after skewed stator slot can only hand insertion,
Be unfavorable for mechanization production, also by rotor magnetic steel tilt magnetize in the way of, but this mode magnetizing tooling complexity is only suitable for
The low product of remanent magnetism.
Invention content
For the above-mentioned problems in the prior art, the utility model, which provides one kind, can reduce cogging torque, drop
Low noise reduces starting current, the permanent magnetic electric machine rotor iron core convenient for mechanization production.
The utility model is achieved by the following technical solution：A kind of permanent magnetic electric machine rotor iron core, including multiple turns
Keyway I is arranged in the middle part of sub- punching I, rotor punching II, the rotor punching I, and keyway is arranged in the middle part of the rotor punching II
II, it is uniformly arranged multipair magnetic slot I on the circumference of rotor punching I, multipair magnetic is uniformly arranged on the circumference of rotor punching II
After being stacked alternately at both ends end plate, the keyway I and II position pair of keyway is arranged in steel tank II, rotor punching I, rotor punching II
Answer, the opposite deflection certain angle of the magnetic slot II on the magnetic slot I on rotor punching I and rotor punching II, the end plate with turn
Sub- punching I, rotor punching II are fixed using rivet.
Further, the magnetic slot I of the rotor punching I and the magnetic slot II of rotor punching II are V-shaped symmetrical
Distribution, and quantity and structure all same.
Further, the rotor punching I, II size of rotor punching are identical, and keyway I is identical as the size of keyway II.
Further, the size of the end plate is identical as rotor punching I, is arranged in the middle part of end plate identical as rotor punching I
The keyway of size.
Further, the rotor punching I and rotor punching II stack height with stack number of fragments can be according to actually answering
With change.
The utility model realizes step skewed pole by two kinds of rotor punchings, reduces cogging torque, reduces noise, reduces
Starting current, and it is simple in structure, and processing technology is simple, can mechanization batch production.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the stereogram of the utility model；
Fig. 3 is the structural schematic diagram of rotor punching I；
Fig. 4 is the structural schematic diagram of rotor punching II；
Wherein, 1 is rotor punching I, and 2 be magnetic slot I, and 3 be keyway I, and 4 be rotor punching II, and 5 be magnetic slot II, and 6 be key
Slot II, 7 be rivet, and 8 be end plate.
Specific implementation mode
It is further described below by specific embodiment and in conjunction with attached drawing to the utility model：
As shown in the picture, a kind of permanent magnetic electric machine rotor iron core, including multiple rotor punchings I 1, rotor punching II 4, described turn
Keyway I 3 is arranged in the middle part of sub- punching I 1, and keyway II 6 is arranged in the middle part of the rotor punching II 4, in the circumference of rotor punching I 1
On be uniformly arranged multipair magnetic slot I 2, be uniformly arranged multipair magnetic slot II 5 on the circumference of rotor punching II 4, rotor punching I 1,
Rotor punching II 4 be stacked alternately after both ends be arranged end plate 8, the keyway I 3 is corresponding with II 6 position of keyway, the rotor punching
Magnetic slot I 2 on I 1 and the opposite deflection certain angle of magnetic slot II 5 on rotor punching II 4, the end plate 8 and rotor punching I
1, rotor punching II 4 is fixed using rivet 7.Rotor punching I 1 and rotor punching II 4 stack height with stack number of fragments can
Changed according to practical application.
The magnetic slot I 2 of the rotor punching I 1 and the magnetic slot II 5 of rotor punching II 4 are V-shaped symmetrical,
And quantity and structure all same.
The rotor punching I 1, II 4 size of rotor punching are identical, and keyway I 3 is identical as the size of keyway II 6.
The size of the end plate 8 is identical as rotor punching I 1, and size identical as rotor punching I 1 is arranged at 8 middle part of end plate
Keyway.
When the utility model assembles, rotor punching I is laminated to after the height of requirement and is inserted into magnet steel, then folded rotor punching II,
Rotor punching II is inserted into magnet steel after folding and folds rotor punching I again, is inserted into magnet steel and completes rotor.
Other parts in the present embodiment are known technology, and details are not described herein.
Claims (3)
1. a kind of permanent magnetic electric machine rotor iron core, it is characterised in that：It is described including multiple rotor punchings I (1), rotor punching II (4)
The middle part setting keyway I (3) of rotor punching I (1), the middle part setting keyway II (6) of the rotor punching II (4) are rushed in rotor
It is uniformly arranged multipair magnetic slot I (2) on the circumference of piece I (1), multipair magnet steel is uniformly arranged on the circumference of rotor punching II (4)
Slot II (5), rotor punching I (1), rotor punching II (4) be stacked alternately after both ends setting end plate (8), the keyway I (3) with
Keyway II (6) position corresponds to, the magnetic slot I (2) on rotor punching I (1) and magnetic slot II (5) phase on rotor punching II (4)
To deflecting certain angle, the end plate (8) is fixed using rivet (7) with rotor punching I (1), rotor punching II (4).
2. permanent magnetic electric machine rotor iron core according to claim 1, it is characterised in that：The rotor punching I (1), rotor punching
Piece II (4) size is identical, and keyway I (3) is identical as the size of keyway II (6).
3. permanent magnetic electric machine rotor iron core according to claim 1, it is characterised in that：The size and rotor of the end plate (8)
Punching I (1) is identical, and the keyway of size identical as rotor punching I (1) is arranged in the middle part of end plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721791484.1U CN207819579U (en) | 2017-12-20 | 2017-12-20 | A kind of permanent magnetic electric machine rotor iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721791484.1U CN207819579U (en) | 2017-12-20 | 2017-12-20 | A kind of permanent magnetic electric machine rotor iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207819579U true CN207819579U (en) | 2018-09-04 |
Family
ID=63332978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721791484.1U Active CN207819579U (en) | 2017-12-20 | 2017-12-20 | A kind of permanent magnetic electric machine rotor iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207819579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507177A (en) * | 2021-07-03 | 2021-10-15 | 湖州巨人电机有限公司 | Built-in segmented equivalent rotor slant-pole structure |
-
2017
- 2017-12-20 CN CN201721791484.1U patent/CN207819579U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507177A (en) * | 2021-07-03 | 2021-10-15 | 湖州巨人电机有限公司 | Built-in segmented equivalent rotor slant-pole structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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.150 Hengshan Road, Qingdao Garment Industrial Park, Jimo, Qingdao, Shandong 266200 Patentee after: Qingdao Hailian Jinhui Motor Co.,Ltd. Address before: No.150 Hengshan Road, Qingdao Garment Industrial Park, Jimo, Qingdao, Shandong 266200 Patentee before: QINGDAO HAILI METAL MOTOR Co.,Ltd. |