CN2618358Y - High-efficient rare earth permanent magnetic synchronous motor - Google Patents
High-efficient rare earth permanent magnetic synchronous motor Download PDFInfo
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- CN2618358Y CN2618358Y CN 03213220 CN03213220U CN2618358Y CN 2618358 Y CN2618358 Y CN 2618358Y CN 03213220 CN03213220 CN 03213220 CN 03213220 U CN03213220 U CN 03213220U CN 2618358 Y CN2618358 Y CN 2618358Y
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- trapezoidal
- groove
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Abstract
The utility model relates to a high-efficient rare earth permanent magnetic synchronous motor, which relates to a rare-earth permanent magnetism synchronous motor and belongs to the field of power motors. A permanent magnet of the prior art is very difficult to install or exchange and can produce magnetic leakage easily, which wastes permanent magnetic material and lowers the overload capability of motors. The utility model installs a group of slots (5-1) and (5-2) with rectangular cross sections and trapezoidal cross sections on an iron core (5), wherein the trapezoidal slot (5-2) is arranged on the outer end of the rectangular slot (5-1) and is communicated with the rectangular slot (5-1), and the small end of the trapezoidal slot (5-2) is arranged on the outer surface of the iron core (5). A rotor (2) also comprises a mouse cage guide strip (6) which comprises a set of trapezoidal guide strips (6-1). The cross section of the trapezoidal guide strip (6-1) corresponds to the cross section of the trapezoidal slot (5-2) and is inlaid in the trapezoidal slot (5-2). The rotor core of the utility model adopts a fan-shaped chip. The utility model has the advantages of simple manufacturing technique, easy processing and coining, and convenient installation of the permanent magnet; the utility model is especially suitable for driving pumping units in low permeability oil fields.
Description
Technical field: the utility model relates to a kind of rare-earth permanent-magnet synchronous motor, belongs to the power motor field.
Background technology: rare earth permanent-magnetic material is applied to electromechanics trade, make motor performance that very big change take place, rare-earth permanent-magnet synchronous motor is compared with general induction motor has higher operating efficiency and power factor, and starting torque is big, carrying capacity is strong, adapts to oil-field oil pumper coupling power especially.The stator of permanent magnet synchronous motor is close with common inductor motor in the prior art, and the rotor structure form is different, embodies different performance differences.The rotor of radial equipartition axially-aligned magnet structure form wherein, though it is simple and compact for structure, cost is lower, but owing to adopt the overall structure silicon steel sheet, permanent magnet can only embed from the iron core both sides, and the installation transposing is very difficult, and overall structure silicon steel sheet interpolar does not have every magnetic, easily produce leakage field, cause the permanent magnetic material waste, reduced the overload capacity of motor.
The utility model content: the utility model is exactly the problem at present permanent magnet machine rotor interelectrode magnetic leakage and magnet steel loading and unloading difficulty, thereby provide a kind of motor with new structure rotor, it comprises rotor 2 and stator 3, rotor 2 is by armature spindle 8, mouse cage sliver 6, aluminium cover 11, permanent magnet 4 and iron core 5 are formed, on iron core 5, be provided with one group of cross section and be respectively the groove 5-1 of rectangle and trapezoidal groove 5-2, dovetail groove 5-2 is arranged on the outer end of rectangular channel 5-1 and communicates with rectangular channel 5-1, the small end of dovetail groove 5-2 is arranged on the outer surface of iron core 5, described rotor 2 also comprises mouse cage sliver 6, mouse cage sliver 6 comprises one group of trapezoidal sliver 6-1, the cross section of the cross section of trapezoidal sliver 6-1 and dovetail groove 5-2 adapts and is embedded in the dovetail groove 5-2, and the cross section of the cross section of described permanent magnet 4 and rectangular channel 5-1 adapts and is embedded in the rectangular channel 5-1.The utility model rotor core adopts fan-shaped chip, manufacturing process is simple, the processing punching out is easy, with low cost, what it formed naturally can reduce leakage field every magnetic bridge, significantly improve the utilance of permanent magnetic material, and improved the power of motor, reach when dwindling motor volume, reduction manufacturing cost, improve the detent torque of motor and the purpose of overload capacity, because magnet steel is arranged vertically, be easy in the direct up insertion groove, the installation transposing is very convenient.The utility model power savings is remarkable, is particularly useful for the driving of low-permeation oil field oil pumping machine, has good economic benefits and social benefit.
Description of drawings: Fig. 1 is the utility model overall structure schematic diagram, Fig. 2 is the structural representation of rotor 2, Fig. 3 is the structural representation of iron core 5, Fig. 4 is permanent magnet 4, mouse cage sliver 6 and the structural representation after iron core 5 is connected, Fig. 5 is the magnetic pole distribution map of iron core 5, and Fig. 6 is the structural representation of fan-shaped chip 7.
Embodiment one: present embodiment comprises rotor 2 and stator 3, rotor 2 is by armature spindle 8, mouse cage sliver 6, aluminium cover 11, permanent magnet 4 and iron core 5 are formed, on iron core 5, be provided with one group of cross section and be respectively the groove 5-1 of rectangle and trapezoidal groove 5-2, dovetail groove 5-2 is arranged on the outer end of rectangular channel 5-1 and communicates with rectangular channel 5-1, the small end of dovetail groove 5-2 is arranged on the outer surface of iron core 5, described rotor 2 also comprises mouse cage sliver 6, mouse cage sliver 6 comprises one group of trapezoidal sliver 6-1, the cross section of the cross section of trapezoidal sliver 6-1 and dovetail groove 5-2 adapts and is embedded in the dovetail groove 5-2, and the cross section of the cross section of described permanent magnet 4 and rectangular channel 5-1 adapts and is embedded in the rectangular channel 5-1.Also be provided with one group of circular recess 5-3 on iron core 5, described mouse cage sliver 6 also comprises one group of round sliver 6-2, and the cross section of circle sliver 6-2 and the cross section of circular recess 5-3 adapt and be embedded in the circular recess 5-3.Iron core 5 just radially is arranged as by one group of fan-shaped chip 7, and circle is formed by stacking vertically again, the straight line of fan-shaped chip 7 and intrados junction are provided with groove 7-1, the groove 7-1 of two fan-shaped chips 7 forms the groove 5-1 that cross section is a rectangle relatively, the straight line of fan-shaped chip 7 and extrados junction are provided with groove 7-2, and it is trapezoidal groove 5-2 that the groove 7-2 of two fan-shaped chips 7 forms a cross section relatively.When armature spindle 8 is permeability magnetic material, adopt non-magnetic material to be connected between armature spindle 8 and iron core 5 or the permanent magnet 4, aluminium cover 11 promptly can be housed between armature spindle 8 and permanent magnet 4, be connected with first member plate 9 and right end plate 10 respectively on two end faces of aluminium cover 11, permanent magnet 4 and mouse cage sliver 6, first member plate 9 plays the effect that mouse cage sliver 6, permanent magnet 4 and aluminium cover 11 are fixed with right end plate 10.The individual number average of the number of the utility model rotor permanent magnet 4 and the number of rectangular channel 5-1, the number of dovetail groove 5-2, trapezoidal sliver 6-1 is identical with the number of poles of motor.
During installation, fan-shaped chip 7 is added to vertically embeds circle sliver 6-2 after the rotor size, connect into rotor core by first member plate 9 and right end plate 10, with aluminium cover 11 be cast into after the one press-fit with armature spindle 8 or direct pouring together, behind the finish turning, insert permanent magnet 4, penetrate trapezoidal sliver 6-1, form complete rotor, motor stator feeds three-phase current and produces rotating magnetic field, the magnetic circuit of rotating magnetic field is by the mouse cage sliver 6 of iron core 5 cutting rotors, induce electromotive force and electric current in mouse cage sliver 6, rotating magnetic field and Interaction Law of Electric Current produce electromagnetic force rotates motor, when motor speed during near the rotating magnetic field rotating speed, rotating magnetic field directly acts on permanent magnet 4, makes motor and rotating magnetic field run-in synchronism.
Claims (4)
1, a kind of efficient rare-earth permanent magnet synchronous motor, it comprises rotor (2) and stator (3), rotor (2) is by armature spindle (8), mouse cage sliver (6), aluminium cover (11), permanent magnet (4) and iron core (5) are formed, it is characterized in that on iron core (5), being provided with one group of cross section and be respectively the groove (5-1) of rectangle and trapezoidal groove (5-2), dovetail groove (5-2) is arranged on the outer end of rectangular channel (5-1) and communicates with rectangular channel (5-1), the small end of dovetail groove (5-2) is arranged on the outer surface of iron core (5), described rotor (2) also comprises mouse cage sliver (6), mouse cage sliver (6) comprises one group of trapezoidal sliver (6-1), the cross section of the cross section of trapezoidal sliver (6-1) and dovetail groove (5-2) adapts and is embedded in the dovetail groove (5-2), and the cross section of the cross section of described permanent magnet (4) and rectangular channel (5-1) adapts and is embedded in the rectangular channel (5-1).
2, efficient rare-earth permanent magnet synchronous motor according to claim 1, it is characterized in that on iron core (5), also being provided with one group of circular recess (5-3), described mouse cage sliver (6) also comprises one group of round sliver (6-2), and the cross section of circle sliver (6-2) and the cross section of circular recess (5-3) adapt and be embedded in the circular recess (5-3).
3, efficient rare-earth permanent magnet synchronous motor according to claim 1, circle is formed by stacking vertically again to it is characterized in that just radially being arranged as by one group of fan-shaped chip (7) by described iron core (5), the straight line of fan-shaped chip (7) and intrados junction are provided with groove (7-1), the groove (5-1) that it is rectangle that the groove (7-1) of two fan-shaped chips (7) is formed a cross section relatively, the straight line of fan-shaped chip (7) and extrados junction are provided with groove (7-2), and it is trapezoidal groove (5-2) that the groove (7-2) of two fan-shaped chips (7) is formed a cross section relatively.
4, efficient rare-earth permanent magnet synchronous motor according to claim 1, it is characterized in that between armature spindle (8) and permanent magnet (4), aluminium cover (11) being housed, on two end faces of aluminium cover (11), permanent magnet (4) and mouse cage sliver (6), be connected with first member plate (9) and right end plate (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213220 CN2618358Y (en) | 2003-05-19 | 2003-05-19 | High-efficient rare earth permanent magnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213220 CN2618358Y (en) | 2003-05-19 | 2003-05-19 | High-efficient rare earth permanent magnetic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2618358Y true CN2618358Y (en) | 2004-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213220 Expired - Fee Related CN2618358Y (en) | 2003-05-19 | 2003-05-19 | High-efficient rare earth permanent magnetic synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2618358Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944786A (en) * | 2010-10-15 | 2011-01-12 | 无锡哈电电机有限公司 | Rotor iron core structure of bipolar motor |
| CN102957285A (en) * | 2012-11-07 | 2013-03-06 | 温岭市东菱电机有限公司 | High-efficiency permanent-magnetic synchronous motor |
| CN103633887A (en) * | 2012-08-27 | 2014-03-12 | 龙浪 | Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter |
| CN104426314A (en) * | 2013-08-29 | 2015-03-18 | 株式会社日立产机系统 | Permanent magnet rotary electric machine and elevator provided with same |
-
2003
- 2003-05-19 CN CN 03213220 patent/CN2618358Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944786A (en) * | 2010-10-15 | 2011-01-12 | 无锡哈电电机有限公司 | Rotor iron core structure of bipolar motor |
| CN103633887A (en) * | 2012-08-27 | 2014-03-12 | 龙浪 | Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter |
| CN102957285A (en) * | 2012-11-07 | 2013-03-06 | 温岭市东菱电机有限公司 | High-efficiency permanent-magnetic synchronous motor |
| CN104426314A (en) * | 2013-08-29 | 2015-03-18 | 株式会社日立产机系统 | Permanent magnet rotary electric machine and elevator provided with same |
| CN104426314B (en) * | 2013-08-29 | 2017-09-29 | 株式会社日立产机系统 | Rotary type permanent-magnet motor and use its elevator gear |
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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 |