CN211209402U - Rotor assembly and motor using same - Google Patents
Rotor assembly and motor using same Download PDFInfo
- Publication number
- CN211209402U CN211209402U CN201921049337.6U CN201921049337U CN211209402U CN 211209402 U CN211209402 U CN 211209402U CN 201921049337 U CN201921049337 U CN 201921049337U CN 211209402 U CN211209402 U CN 211209402U
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- permanent magnet
- rotor
- squirrel cage
- motor
- iron core
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model provides a rotor component, which comprises a permanent magnet rotor iron core and a squirrel cage; a permanent magnet straight slot is arranged on the permanent magnet rotor core; the squirrel cage is provided with a chute; the permanent magnet rotor iron core is embedded into the squirrel cage and combined with the squirrel cage. The utility model also provides a motor using the rotor assembly, which comprises a motor main body, a permanent magnet rotor core, a squirrel cage, a permanent magnet and a rotor shaft; the permanent magnet is arranged in a permanent magnet straight slot of the permanent magnet rotor core; the rotor shaft is arranged in a rotor shaft hole of the permanent magnet rotor core and combined to form a rotor; the aluminum casting operation was performed in a chute of a squirrel cage. The utility model provides a rotor component, which utilizes the splicing of a squirrel cage with an inclined groove and a permanent magnet rotor iron core with a permanent magnet straight groove to realize multi-section dislocation; the motor with the component is further provided, the segmented oblique pole arrangement of a motor rotor is realized, the motor tooth harmonic, the cogging torque and the torque ripple are effectively weakened, and the starting and output performance of the motor is improved.
Description
Technical Field
The utility model relates to a permanent magnet motor subassembly application technical field, more specifically relates to a rotor subassembly, still relates to a motor of using this subassembly.
Background
The cogging torque is one of the specific problems of the permanent magnet motor, and due to the existence of the permanent magnet, the cogging torque generated by the interaction between the rotor and the stator cogging during the rotation of the rotor is generally solved by a stator skewed slot method in the industry in order to reduce the cogging torque as much as possible. However, after the stator chute is adopted, the wire inserting difficulty is increased, so that the labor cost is increased; and the shape of the stator core must be made into a round shape, so that the stator can be rotationally laminated, and the assembly structure and the shape of the stator are limited.
Most of the permanent magnet rotors with the squirrel cages adopt an integrated structure, and the squirrel cages cannot realize skewed slots due to the existence of the permanent magnet slots on the iron cores, so that the cogging torque is large, and the starting and output performance of the motor is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned current permanent magnet rotor majority and adopt the integral type structure, the unable chute that realizes of squirrel cage has thereby the big technical defect who influences motor start and output performance of tooth's socket torque, provides a rotor subassembly.
The utility model also provides an use the motor of this subassembly.
The utility model discloses a first purpose is for solving above-mentioned technical problem, the technical scheme of the utility model as follows:
a rotor assembly comprising a permanent magnet rotor core and a squirrel cage; wherein:
a permanent magnet straight slot is arranged on the permanent magnet rotor iron core;
the squirrel cage is provided with a chute;
the permanent magnet rotor iron core is embedded into the squirrel cage and combined with the squirrel cage.
And the permanent magnet rotor iron core and the squirrel cage are combined in a two-section staggered manner.
And a rotor shaft hole is also formed in the permanent magnet rotor core.
Wherein, the chute has a plurality ofly, sets up evenly on the squirrel cage.
A motor applying a rotor assembly comprises a motor main body, a permanent magnet rotor iron core, a squirrel cage, a permanent magnet and a rotor shaft; wherein:
the permanent magnet is arranged in a permanent magnet straight slot of the permanent magnet rotor core;
the rotor shaft is arranged in a rotor shaft hole of the permanent magnet rotor core;
an aluminum casting operation is performed in the chutes of the squirrel cage.
Wherein, rotor subassembly is installed behind the motor, has realized the oblique utmost point setting of segmentation of rotor.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model provides a rotor component, which utilizes the splicing of a squirrel cage with an inclined groove and a permanent magnet rotor iron core with a permanent magnet straight groove to realize multi-section dislocation; the motor with the component is further provided, the rotor component is installed on the motor rotor, the segmented oblique pole arrangement of the motor rotor is achieved, motor tooth harmonic waves, tooth space torque and torque pulsation are effectively weakened, and the starting and output performance of the motor is improved.
Drawings
FIG. 1 is a schematic diagram of a permanent magnet rotor core structure;
FIG. 2 is a schematic structural diagram of a squirrel cage;
FIG. 3 is a schematic view of the assembled rotor assembly;
wherein: 1. a permanent magnet rotor core; 11. a permanent magnet straight slot; 12. a rotor shaft hole; 2. a mouse cage; 21. a chute; 3. and a permanent magnet.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
A rotor assembly comprises a permanent magnet rotor iron core 1 and a squirrel cage 2; wherein:
a permanent magnet straight slot 11 is arranged on the permanent magnet rotor iron core 1;
the squirrel cage 2 is provided with a chute 21;
the permanent magnet rotor iron core 1 is embedded into the squirrel cage 2 and is clamped with the squirrel cage 2.
More specifically, the permanent magnet rotor iron core 1 and the squirrel cage 2 are in two-section staggered clamping connection.
More specifically, the permanent magnet rotor core 1 is further provided with a rotor shaft hole 12.
More specifically, the inclined grooves 21 are provided in plurality and are uniformly arranged on the squirrel cage 2.
In a specific implementation process, the permanent magnet straight slot 11 is used for installing the permanent magnet 3; the chute 21 is used for cast aluminum operation and the permanent magnet motor is connected with the rotor assembly through the rotor shaft hole 12.
Example 2
A motor using a rotor assembly comprises a motor main body, a permanent magnet rotor core 1, a squirrel cage 2, a permanent magnet 3 and a rotor shaft; wherein:
the permanent magnet 3 is arranged in a permanent magnet straight slot 11 of the permanent magnet rotor core 1;
the rotor shaft is arranged in a rotor shaft hole 12 of the permanent magnet rotor core 1;
an aluminum casting operation is performed in the chutes 21 of the cage 2.
More specifically, the rotor assembly is mounted behind the motor to achieve a segmented skewed pole arrangement of the rotor.
In the specific implementation process, the squirrel cage 2 provided with the inclined grooves 21 and the permanent magnet rotor iron core 1 provided with the permanent magnet straight grooves 11 are spliced, so that two-section dislocation is realized, the sectional inclined pole arrangement of the motor rotor is realized, the motor tooth harmonic waves, the tooth space torque and the torque pulsation are effectively weakened, the torque tangential component is reduced, and the starting and output performance of the motor is improved.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. A rotor assembly, characterized by: comprises a permanent magnet rotor iron core (1) and a squirrel cage (2); wherein:
a permanent magnet straight slot (11) is arranged on the permanent magnet rotor iron core (1);
the squirrel cage (2) is provided with a chute (21);
the permanent magnet rotor iron core (1) is embedded into the squirrel cage (2) and combined with the squirrel cage (2).
2. A rotor assembly as claimed in claim 1, wherein: the permanent magnet rotor iron core (1) and the squirrel cage (2) are combined in a staggered mode.
3. A rotor assembly as claimed in claim 2, wherein: and the permanent magnet rotor iron core (1) is also provided with a rotor shaft hole (12).
4. A rotor assembly as claimed in claim 3, wherein: the inclined grooves (21) are uniformly arranged on the squirrel cage (2).
5. An electric machine to which a rotor assembly according to claim 4 is applied, comprising a machine body, characterized in that: the squirrel-cage permanent magnet motor comprises a permanent magnet rotor iron core (1), a squirrel cage (2), a permanent magnet (3) and a rotor shaft; wherein:
the permanent magnet (3) is arranged in a permanent magnet straight slot (11) of the permanent magnet rotor core (1);
the rotor shaft is arranged in a rotor shaft hole (12) of the permanent magnet rotor core (3);
an aluminum casting operation is carried out in the chutes (21) of the cage (2).
6. The motor using the rotor assembly as claimed in claim 5, wherein: the rotor assembly is arranged behind the motor, and the segmented oblique pole arrangement of the rotor is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921049337.6U CN211209402U (en) | 2019-07-05 | 2019-07-05 | Rotor assembly and motor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921049337.6U CN211209402U (en) | 2019-07-05 | 2019-07-05 | Rotor assembly and motor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211209402U true CN211209402U (en) | 2020-08-07 |
Family
ID=71854643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921049337.6U Active CN211209402U (en) | 2019-07-05 | 2019-07-05 | Rotor assembly and motor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211209402U (en) |
-
2019
- 2019-07-05 CN CN201921049337.6U patent/CN211209402U/en active Active
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