CN203883651U - Asynchronous-startup and synchronous-operating motor rotor - Google Patents
Asynchronous-startup and synchronous-operating motor rotor Download PDFInfo
- Publication number
- CN203883651U CN203883651U CN201420142602.6U CN201420142602U CN203883651U CN 203883651 U CN203883651 U CN 203883651U CN 201420142602 U CN201420142602 U CN 201420142602U CN 203883651 U CN203883651 U CN 203883651U
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- magnetic steel
- steel plates
- magnetic
- iron core
- bar
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Abstract
The utility model relates to an asynchronous-startup and synchronous-operating motor rotor. The asynchronous-startup and synchronous-operating motor rotor includes a rotor rotation shaft and an iron core which is fixed to the outer periphery of the rotor rotation shaft; squirrel-cage bars are evenly distributed on the surface of the outer periphery of the iron core along the circumferential direction of the iron core; eight magnetic steel plates and four magnetic steel bars are embedded in the iron core, wherein the eight magnetic steel plates are parallel to the axial center line of the rotor rotation shaft; the eight magnetic steel plates, with the axial center line of the rotor rotation shaft adopted as a center line, form a rectangular cylindrical structure of which the cross section is rectangular; each surface of the cylindrical structure is composed of two magnetic steel plates; the orders of the magnetic poles of two magnetic steel plates form each surface of the cylindrical structure are opposite; the order of the magnetic poles of two magnetic steel plates of one surface is the same with the order of the magnetic poles of two magnetic steel plates of one adjacent surface of the cylindrical structure; the magnetic steel bars are arranged at intersections of diagonal lines of four surfaces of the cylindrical structure; the magnetic steel bars and the magnetic steel plates are vertically arranged; and the magnetic steel bars are arranged at the exterior of the rectangular structure. With the asynchronous-startup and synchronous-operating motor rotor of the utility model adopted, the power factor and operational stability of a motor can be improved, and cogging torque can be reduced.
Description
Technical field
The utility model belongs to motor component equipment technical field, relates to a kind of motor rotor, the synchronous operated motor rotor of especially a kind of asynchronous starting.
Background technology
In asynchronous starting run-in synchronism motor, for improving the efficiency of motor, make motor operation steady, it is vital appropriately designing the magnetic line of force distribution situation of motor rotor when asynchronous starting and run-in synchronism.
At present, common way is magnet steel to be attached to the outer round surface of rotor, squirrel-cage bar is placed on to the lower inside of magnet steel, and this layout type reduces the performance of motor asynchronous starting.
In addition, also have squirrel-cage bar is placed on to surface by rotor outer circle, magnet steel is placed on to the lower inside of squirrel-cage bar, but this mode is difficult for making rotor magnetic pole to produce, approach sinusoidal magnetic field, and need to use more permanent magnet.
Utility model content
The purpose of this utility model is, the defect existing for above-mentioned prior art provides a kind of asynchronous starting of design synchronous operated motor rotor, and rotor magnetic pole produces sinusoidal magnetic field, to improve electric motor starting and behavior in service.
For achieving the above object, the utility model provides following technical scheme:
The synchronous operated motor rotor of a kind of asynchronous starting, comprise rotor shaft and be fixed on the iron core on rotor shaft cylindrical, the outer round surface of described iron core is evenly distributed with squirrel-cage bar along the circumferencial direction of iron core cylindrical, and described iron core is embedded with eight magnetic steel plates and four magnet steel bars
Wherein, eight magnetic steel plates are all placed with the axial centre line parallel of rotor shaft, eight magnetic steel plates be take line centered by the longitudinal center line of rotor shaft and are formed the tubular structure that cross section is rectangle, each face of tubular structure is comprised of two magnetic steel plates, form the magnetic pole reversed in order of two magnetic steel plates of each face of tubular structure, the magnetic pole order of two magnetic steel plates of two faces that tubular structure is adjacent is identical
Magnet steel bar lays respectively on cornerwise intersection point of four faces of tubular structure, and magnet steel bar is vertical with magnetic steel plate to be laid, and magnet steel bar is arranged at the outside of rectangle.
Preferably, described iron core is silicon steel sheet.
Preferably, described magnetic steel plate is plate shaped Nd-Fe-B magnet steel.
Preferably, described magnet steel bar is bar shaped Nd-Fe-B magnet steel.
Preferably, described squirrel-cage bar is copper squirrel-cage bar.
Adopt copper squirrel-cage bar not only can meet conductive condition, and copper squirrel-cage bar is more cheap than silver squirrel-cage bar.
Preferably, the quantity of described squirrel-cage bar is 40.
The circumferencial direction of iron core cylindrical arranges evenly cutting magnetic line of 40 squirrel-cage bars, improves motor rotation effect.
The beneficial effects of the utility model are, the outer round surface of iron core is evenly distributed with squirrel-cage bar along the circumferencial direction of iron core cylindrical, improve the startability of motor;
Eight magnetic steel plates are all placed with the axial centre line parallel of rotor shaft, eight magnetic steel plates be take line centered by the longitudinal center line of rotor shaft and are formed the tubular structure that cross section is rectangle, each face of tubular structure is comprised of two magnetic steel plates, form the magnetic pole reversed in order of two magnetic steel plates of each face of tubular structure, the magnetic pole order of two magnetic steel plates of two faces that tubular structure is adjacent is identical, on the cornerwise intersection point that lays respectively at four faces of tubular structure of magnet steel bar, magnet steel bar is vertical with magnetic steel plate to be laid, and magnet steel bar is arranged at the outside of rectangle, make rotor form sinusoidal magnetic field, improve the power factor of motor, the stationarity of running, and can reduce cogging torque, improve the performance of synchronizing motors, in addition, the utility model design principle is reliable, simple in structure, there is application prospect very widely.
As shown in the above, the utility model compared with prior art has substantive distinguishing features and progress, and its concrete beneficial effect of implementing is also apparent.
Accompanying drawing explanation
The structural representation of the synchronous operated motor rotor of a kind of asynchronous starting that Fig. 1 provides for the utility model.
Wherein, 1-rotor shaft, 2-iron core, 3-squirrel-cage bar, 4-magnet steel bar, 5-magnetic steel plate.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is elaborated, and following examples are to explanation of the present utility model, and the utility model is not limited to following embodiment.
As shown in Figure 1, the synchronous operated motor rotor of a kind of asynchronous starting that the utility model provides, comprise rotor shaft 1 and be fixed on the iron core 2 on rotor shaft 1 cylindrical, the outer round surface of described iron core 2 is evenly distributed with squirrel-cage bar 3 along the circumferencial direction of iron core 2 cylindricals, described iron core 2 is embedded with eight magnetic steel plates 5 and four magnet steel bars 4
Wherein, eight magnetic steel plates 5 are all placed with the axial centre line parallel of rotor shaft 1, eight magnetic steel plates 5 be take line centered by the longitudinal center line of rotor shaft 1 and are formed the tubular structure that cross section is rectangle, each face of tubular structure is comprised of two magnetic steel plates 5, form the magnetic pole reversed in order of two magnetic steel plates 5 of each face of tubular structure, the magnetic pole order of two magnetic steel plates 5 of two faces that tubular structure is adjacent is identical
Magnet steel bar 4 lays respectively on cornerwise intersection point of four faces of tubular structure, and magnet steel bar 4 is laid with magnetic steel plate 5 is vertical, and magnet steel bar 4 is arranged at the outside of rectangle.
In the present embodiment, described iron core 2 is silicon steel sheet.
In the present embodiment, described magnetic steel plate 5 is plate shaped Nd-Fe-B magnet steel.
In the present embodiment, described magnet steel bar 4 is bar shaped Nd-Fe-B magnet steel.
In the present embodiment, described squirrel-cage bar 3 is copper squirrel-cage bar.
Adopt copper squirrel-cage bar not only can meet conductive condition, and copper squirrel-cage bar is more cheap than silver squirrel-cage bar.
In the present embodiment, the quantity of described squirrel-cage bar 3 is 40.
The circumferencial direction of iron core 2 cylindricals arranges evenly cutting magnetic line of 40 squirrel-cage bars 3, improves motor rotation effect.
In the present embodiment, the outer round surface of iron core 2 is evenly distributed with squirrel-cage bar 3 along the circumferencial direction of iron core 2 cylindricals, improves the startability of motor;
Eight magnetic steel plates 5 are all placed with the axial centre line parallel of rotor shaft 1, eight magnetic steel plates 5 be take line centered by the longitudinal center line of rotor shaft 1 and are formed the tubular structure that cross section is rectangle, each face of tubular structure is comprised of two magnetic steel plates, form the magnetic pole reversed in order of two magnetic steel plates of each face of tubular structure, the magnetic pole order of two magnetic steel plates of two faces that tubular structure is adjacent is identical, on the cornerwise intersection point that lays respectively at four faces of tubular structure of magnet steel bar, magnet steel bar is vertical with magnetic steel plate to be laid, and magnet steel bar is arranged at the outside of rectangle, make rotor form sinusoidal magnetic field, improve the power factor of motor, the stationarity of running, and can reduce cogging torque, improve the performance of synchronizing motors.
Disclosed is above only preferred implementation of the present utility model; but the utility model is not limited thereto; any those skilled in the art can think there is no a creationary variation; and not departing from some improvements and modifications of doing under the utility model principle prerequisite, all should drop in protection range of the present utility model.
Claims (6)
1. the synchronous operated motor rotor of asynchronous starting, comprise rotor shaft and be fixed on the iron core on rotor shaft cylindrical, the outer round surface of described iron core is evenly distributed with squirrel-cage bar along the circumferencial direction of iron core cylindrical, and described iron core is embedded with eight magnetic steel plates and four magnet steel bars
Wherein, eight magnetic steel plates are all placed with the axial centre line parallel of rotor shaft, eight magnetic steel plates be take line centered by the longitudinal center line of rotor shaft and are formed the tubular structure that cross section is rectangle, each face of tubular structure is comprised of two magnetic steel plates, form the magnetic pole reversed in order of two magnetic steel plates of each face of tubular structure, the magnetic pole order of two magnetic steel plates of two faces that tubular structure is adjacent is identical
Magnet steel bar lays respectively on cornerwise intersection point of four faces of tubular structure, and magnet steel bar is vertical with magnetic steel plate to be laid, and magnet steel bar is arranged at the outside of rectangle.
2. the synchronous operated motor rotor of asynchronous starting according to claim 1, is characterized in that: described iron core is silicon steel sheet.
3. the synchronous operated motor rotor of asynchronous starting according to claim 1 and 2, is characterized in that: described magnetic steel plate is plate shaped Nd-Fe-B magnet steel.
4. the synchronous operated motor rotor of asynchronous starting according to claim 3, is characterized in that: described magnet steel bar is bar shaped Nd-Fe-B magnet steel.
5. the synchronous operated motor rotor of asynchronous starting according to claim 4, is characterized in that: described squirrel-cage bar is copper squirrel-cage bar.
6. the synchronous operated motor rotor of asynchronous starting according to claim 4, is characterized in that: the quantity of described squirrel-cage bar is 40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420142602.6U CN203883651U (en) | 2014-03-27 | 2014-03-27 | Asynchronous-startup and synchronous-operating motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420142602.6U CN203883651U (en) | 2014-03-27 | 2014-03-27 | Asynchronous-startup and synchronous-operating motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883651U true CN203883651U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420142602.6U Expired - Fee Related CN203883651U (en) | 2014-03-27 | 2014-03-27 | Asynchronous-startup and synchronous-operating motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378915A (en) * | 2018-12-04 | 2019-02-22 | 哈尔滨理工大学 | A kind of rotor structure for permanent magnet motor |
-
2014
- 2014-03-27 CN CN201420142602.6U patent/CN203883651U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378915A (en) * | 2018-12-04 | 2019-02-22 | 哈尔滨理工大学 | A kind of rotor structure for permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20150327 |
|
| EXPY | Termination of patent right or utility model |