CN219181259U - Built-in rotor structure of permanent magnet synchronous motor with wide speed regulation range - Google Patents
Built-in rotor structure of permanent magnet synchronous motor with wide speed regulation range Download PDFInfo
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- CN219181259U CN219181259U CN202223234420.5U CN202223234420U CN219181259U CN 219181259 U CN219181259 U CN 219181259U CN 202223234420 U CN202223234420 U CN 202223234420U CN 219181259 U CN219181259 U CN 219181259U
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- magnetic steel
- rotor
- dynamic balance
- punching sheet
- permanent magnet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a built-in rotor structure of a permanent magnet synchronous motor with a wide speed regulation range, which comprises a rotor punching sheet and magnetic steel arranged in a groove of the rotor punching sheet, wherein magnetic steel aluminum pressing plates are attached to two end surfaces of the rotor punching sheet and are fastened through compression screws penetrating through the rotor punching sheet and the magnetic steel aluminum pressing plates, and a weighting part is arranged on each magnetic steel aluminum pressing plate. The utility model has the advantages that: the motor has reasonable structural design, is used for motors with higher requirements on balance precision, and has low manufacturing cost, convenient installation and high dynamic balance efficiency of the rotor. When the rotating speed of the permanent magnet synchronous motor with the wide speed regulation range is higher, in order to reduce motor vibration caused by rotor unbalance, a weighting method is applied to the magnetic steel aluminum pressing plate to weight the dynamic balance screw and/or the dynamic balance cement, so that the dynamic balance efficiency and the dynamic balance precision can be effectively improved in the use process.
Description
Technical Field
The utility model relates to a built-in motor rotor structure convenient for dynamic balance of a permanent magnet synchronous motor rotor with a wide speed regulation range, and belongs to the technical field of motor design.
Background
The permanent magnet synchronous motor with wide speed regulation range has the advantages of high power density, high efficiency, good torque control capability, wider speed regulation range and the like, and the dynamic balance precision and the dynamic balance machining efficiency of the motor rotor are very important for motors with high rotating speed requirements.
The large motor rotor unbalance causes large motor vibration, which is an expression of motor operation. In the prior art, when the high-speed permanent magnet rotor weighting method is used for dynamic balance, the defects of low balance efficiency and low balance precision exist, and the problems of high press-fitting cost of a motor rotor and unsmooth and attractive appearance of the rotor also exist.
CN207939332U is a filled type weight dynamic balance motor rotor, and only the high-speed permanent magnet rotor is weighted by filling balance cement, so that the dynamic balance efficiency and the dynamic balance precision still cannot meet the use requirement.
Disclosure of Invention
The utility model provides a built-in rotor structure of a permanent magnet synchronous motor with a wide speed regulation range, which aims to overcome the defects in the prior art, reduce the manufacturing cost, facilitate the installation and improve the dynamic balance efficiency of the rotor aiming at the motor with high balance precision requirement.
The technical solution of the utility model is as follows: the built-in rotor structure of permanent magnet synchronous motor with wide speed regulating range includes rotor punching sheet and magnetic steel inside the slot of the rotor punching sheet, and magnetic steel aluminum pressing plates attached to the two end surfaces of the rotor punching sheet and fastened with pressing screws penetrating through the rotor punching sheet and the magnetic steel aluminum pressing plates and with weight part.
Preferably, as the weight of the corresponding position when the dynamic balance of the rotor is adjusted, the weight part comprises a plurality of dynamic balance screws arranged on the magnetic steel aluminum pressing plate.
Preferably, as the weight of the corresponding position when the dynamic balance of the rotor is further adjusted, the weight part comprises a plurality of dynamic balance mortars arranged in the upper holes of the magnetic steel aluminum pressing plate.
The utility model has the advantages that: the motor has reasonable structural design, is used for motors with higher requirements on balance precision, and has low manufacturing cost, convenient installation and high dynamic balance efficiency of the rotor. When the rotating speed of the permanent magnet synchronous motor with the wide speed regulation range is higher, in order to reduce motor vibration caused by rotor unbalance, a weighting method is applied to the magnetic steel aluminum pressing plate to weight the dynamic balance screw and/or the dynamic balance cement, so that the dynamic balance efficiency and the dynamic balance precision can be effectively improved in the use process.
Drawings
Fig. 1 is a schematic structural view of a built-in rotor structure of a permanent magnet synchronous motor with a wide speed regulation range according to the present utility model.
Fig. 2 is a top view of fig. 1.
In the figure, the magnetic steel 1, the rotor punching sheet 2, the magnetic steel aluminum pressing plate 3, the pressing screw 4, the dynamic balance screw 5 and the dynamic balance cement 6 are shown.
Detailed Description
The present utility model will be described in further detail with reference to examples and embodiments.
As shown in fig. 1 and 2, a built-in rotor structure of a permanent magnet synchronous motor with a wide speed regulation range comprises a rotor punching sheet 2 and magnetic steel 1 arranged in a groove of the rotor punching sheet 2, wherein a magnetic steel aluminum pressing plate 3 is attached to two end surfaces of the rotor punching sheet 2 and is fastened by a pressing screw 4 penetrating through the rotor punching sheet 2 and the magnetic steel aluminum pressing plate 3, and a weighting part is arranged on the magnetic steel aluminum pressing plate 3.
The weighting part comprises a plurality of dynamic balance screws 5 arranged on the magnetic steel aluminum pressing plate 3. As an emphasis on the corresponding position when adjusting the dynamic balance of the rotor.
The weighting part can also comprise a plurality of dynamic balance daub 6 arranged in the upper hole of the magnetic steel aluminum pressing plate 3.
According to the structure, when the dynamic balance screw 5 and the dynamic balance cement 6 are used as the weight parts of the rotor after dynamic balance, the use amount can be correspondingly adjusted at the same time, and the dynamic balance screw 5 and/or the dynamic balance cement 6 are added to ensure the dynamic balance of the rotor through the weight of the magnetic steel aluminum pressing plates 3 at the two sides of the rotor at the corresponding positions of the circumference.
The above components are all of the prior art, and any model and existing design that can achieve their corresponding functions can be used by those skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.
Claims (2)
1. The built-in rotor structure of the permanent magnet synchronous motor with the wide speed regulation range comprises a rotor punching sheet (2) and magnetic steel (1) arranged in a groove of the rotor punching sheet (2), and is characterized in that magnetic steel aluminum pressing plates (3) are attached to two end faces of the rotor punching sheet (2) and are fastened through pressing screws (4) penetrating through the rotor punching sheet (2) and the magnetic steel aluminum pressing plates (3), and weight parts are arranged on the magnetic steel aluminum pressing plates (3); the weighting part comprises a plurality of dynamic balance screws (5) arranged on the magnetic steel aluminum pressing plate (3).
2. The built-in rotor structure of the permanent magnet synchronous motor with wide speed regulation range according to claim 1, wherein the weight part comprises a plurality of dynamic balance cement (6) arranged in the upper hole of the magnetic steel aluminum pressing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223234420.5U CN219181259U (en) | 2022-12-01 | 2022-12-01 | Built-in rotor structure of permanent magnet synchronous motor with wide speed regulation range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223234420.5U CN219181259U (en) | 2022-12-01 | 2022-12-01 | Built-in rotor structure of permanent magnet synchronous motor with wide speed regulation range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219181259U true CN219181259U (en) | 2023-06-13 |
Family
ID=86662885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223234420.5U Active CN219181259U (en) | 2022-12-01 | 2022-12-01 | Built-in rotor structure of permanent magnet synchronous motor with wide speed regulation range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219181259U (en) |
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2022
- 2022-12-01 CN CN202223234420.5U patent/CN219181259U/en active Active
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