CN2274837Y - Structure of rotor of permanent megnet synchronous motor - Google Patents
Structure of rotor of permanent megnet synchronous motor Download PDFInfo
- Publication number
- CN2274837Y CN2274837Y CN 96214567 CN96214567U CN2274837Y CN 2274837 Y CN2274837 Y CN 2274837Y CN 96214567 CN96214567 CN 96214567 CN 96214567 U CN96214567 U CN 96214567U CN 2274837 Y CN2274837 Y CN 2274837Y
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- utility
- steel sheet
- silicon steel
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a structure of a rotor of a permanent magnet synchronous motor, which belongs to the improvement of the rotor of a three-phase asynchronous motor of Y series, and comprises a guide strip (1), a silicon steel sheet (2) and a shaft core (4), wherein, a permanent magnet (3) is symmetrically arranged on the portion between the shaft core (4) and the silicon steel sheet (2); the permanent magnet (3) is strip-shaped Nd-Fe-B permanent-magnet material; the permanent magnet (3) is uniformly arranged on the silicon steel sheet of the rotor of the motor. Through adopting the scheme, the utility model solves the blank of middle-power and high-power permanent magnetism three-phase synchronous motors in the prior art, and especially is suitable for a driving of a low permeability oil field pumping unit. The utility model has the advantages that the loss is greatly reduced; the effect of power save is extremely obvious.
Description
The rotor that the utility model belongs to Y series threephase asynchronous improves.
The existing magneto of producing, selling and uying all belongs to small-power, in, the high-power permanent magnet three-phase synchronous motor is domestic does not still have production.
In view of the deficiencies in the prior art, the purpose of this utility model aim to provide a kind of in, powerful three-phase permanent magnet synchronous motor.
The utility model is finished as follows: the utility model comprises sliver 1, silicon steel sheet 2, axle center 4, is symmetrical arranged permanent magnet 3 between described axle center 4 and silicon steel sheet 2.
Above-mentioned permanent magnet 3 is the neodymium iron boron of strip.
The number of above-mentioned permanent magnet 3 is identical with motor pole number.
The utility model compared with prior art improves a power grade than y series motor, and average current descends about 30% after testing, and power factor brings up to 0.9 by original 0.6, and as seen its power savings is obvious.
The utility model has following accompanying drawing,
Fig. 1 is a structure chart of the present utility model
Fig. 2 is the A-A cut-away enlarged view of Fig. 1
Accompanying drawing has been represented structure of the present utility model, below again in conjunction with implementing just further to elaborate structure of the present utility model and principle thereof.The utility model comprises sliver 1, silicon steel sheet 2, axle center 4, is symmetrical arranged permanent magnet 3 between described axle center 4 and silicon steel sheet 2.Described permanent magnet 3 is the Nd-Fe-Bo permanent magnet material of strip, and according to the number of poles of motor, is evenly distributed on the silicon steel sheet of rotor.Motor starts by the aluminium mouse cage under normal three-phase voltage, and generation rotating magnetic field, the magnetic circuit of rotating magnetic field is by silicon steel sheet 2 cutting rotor slivers 1, in sliver 1, induce electromotive force and electric current, rotating magnetic field and Interaction Law of Electric Current just produce electromagnetic force rotates motor, when motor speed during near the rotating magnetic field rotating speed, rotating magnetic field interacts by silicon steel sheet 2 and Nd-Fe-B permanent magnet 3, makes rotating speed of motor and rotating magnetic field reach synchronous speed.The overall dimension of the present utility model all Y rotor with common is identical, can exchange, user-friendly, maintenance.Adopt the utility model, increased substantially motor power factor, its power savings is obvious, is particularly useful for the driving of low-permeation oil field oil pumping machine, can reduce the wastage more than 15%, has good economic benefits and social benefit.
Claims (3)
1, a kind of rotor structure of permagnetic synchronous motor comprises sliver (1), silicon steel sheet (2), axle center (4), it is characterized in that: be symmetrical arranged permanent magnet (3) between described axle center (4) and silicon steel sheet (2).
2, the rotor structure of permagnetic synchronous motor as claimed in claim 1 is characterized in that: described permanent magnet (3) is the neodymium iron boron of strip.
3, the rotor structure of permagnetic synchronous motor as claimed in claim 1 or 2 is characterized in that: the number of described permanent magnet (3) is identical with motor pole number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96214567 CN2274837Y (en) | 1996-06-15 | 1996-06-15 | Structure of rotor of permanent megnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96214567 CN2274837Y (en) | 1996-06-15 | 1996-06-15 | Structure of rotor of permanent megnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2274837Y true CN2274837Y (en) | 1998-02-18 |
Family
ID=33896639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96214567 Expired - Fee Related CN2274837Y (en) | 1996-06-15 | 1996-06-15 | Structure of rotor of permanent megnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2274837Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1914106B (en) * | 2004-01-30 | 2010-11-17 | 柯尼格及包尔公开股份有限公司 | Reel changer driver |
-
1996
- 1996-06-15 CN CN 96214567 patent/CN2274837Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1914106B (en) * | 2004-01-30 | 2010-11-17 | 柯尼格及包尔公开股份有限公司 | Reel changer driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |