CN104113152A - Permanent magnet rotor of three-phase asynchronous motor - Google Patents
Permanent magnet rotor of three-phase asynchronous motor Download PDFInfo
- Publication number
- CN104113152A CN104113152A CN201310288411.0A CN201310288411A CN104113152A CN 104113152 A CN104113152 A CN 104113152A CN 201310288411 A CN201310288411 A CN 201310288411A CN 104113152 A CN104113152 A CN 104113152A
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- magnetic steel
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- magnet steel
- steel
- sliver
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a permanent magnet rotor of a three-phase asynchronous motor. The external side of a middle shaft is provided with a circular silicon steel sheet. A circle of guiding strips are installed at the external side of the silicon steel sheet in a surrounding way. Self-starting torque is provided by the guiding strips. The external side of the guiding strips is provided with multiple blocks of magnetic steel which are arranged according to an N-S pole alternating sequence. A permanent magnetic field is provided by magnetic steel when a motor switches into synchronous operation. Each block of magnetic steel is divided into n segments, height of each segment is 1/n time than length of a rotor iron core, and each segment of magnetic steel is arranged and clung to the surface of the processed rotor in an inclined way according to inclined grooves of the guiding strips. Radian of magnetic steel is the same with radian of the external circumference of the rotor iron core part. Each block of magnetic steel is identical in width. The rotor iron core provides induced current when the guiding strips start. Fillers are arranged between adjacent magnetic steel. Non-magnetic-conducting metal material wraps outside magnetic steel. The rotor body of the three-phase asynchronous motor is reconstructed, and magnetic steel is inlaid in magnetic steel so that a three-phase permanent magnet synchronous motor with a self-starting function is achieved.
Description
Technical field
The present invention relates to technical field of motors, relate in particular to a kind of p-m rotor of threephase asynchronous.
Background technology
Permanent magnet synchronous motor is compared with threephase asynchronous, without exciting current, power factor is high, when stable operation, there is no rotor copper loss, and then can reduce the corresponding wind moussing loss of fan, thereby make its efficiency improve 8%～10% than same specification threephase asynchronous, permanent magnet synchronous motor all can keep higher efficiency and power factor within the scope of 25%～120% nominal load, and while making light running, energy-saving effect is more remarkable.
And the technology of existing permanent magnet synchronous motor can not skewed slot due to rotor magnetic steel, can only solve by stator iron core chute the problem of groove slot ripples.So existing permanent-magnet synchronous motor rotor all can not operate on old motor stator, and its complex manufacturing of skewed stator slot, manufacturing cost is too high, old motor can only be as waste product, input cost is high, payoff period is long, and this just causes the existing permanent magnet synchronous motor can not spread.
Existing threephase asynchronous, to pass into after three-phase symmetrical alternating current by threephase stator winding, produce a rotating magnetic field, this rotating magnetic field cutting rotor winding, thereby produce induced current in rotor winding, the rotor conductor of current-carrying produces electromagnetic force under the effect of stator rotating magnetic field, thereby forms electromagnetic torque on machine shaft, drive motor rotation.Along with the size change of load, the rated speed of asynchronous motor also can, along with change, will reduce its efficiency so greatly.
So, at present threephase asynchronous is done to further improvement, make it become a kind of three-phase permanent-magnetic synchronous motors with self-starting function, be a kind of new development prospect of technical field of motors.
Summary of the invention
For to threephase asynchronous process and remould again in addition, make it become a kind of three-phase permanent-magnetic synchronous motors with self-starting function, the invention provides a kind of p-m rotor of threephase asynchronous.
The object of the invention is to be achieved through the following technical solutions: a kind of p-m rotor of threephase asynchronous, comprise axis, silicon steel sheet, sliver, filler, magnet steel, steel bushing, rotor core, wherein in the outside of axis, circular silicon steel sheet is installed, the sliver of one circle is installed around the outside of silicon steel sheet, sliver provides self-starting torque, the outside of sliver is provided with polylith magnet steel, the order that magnet steel replaces according to the N-S utmost point is arranged, magnet steel provides permanent-magnetic field when motor incision synchronous operation, every block of magnet steel is divided into n section, every section of height is rotor core length 1/n times, every section of magnet steel is tiltedly arranged and is attached to the rotor surface processing successively according to the skewed slot of sliver, the radian of magnet steel equates with the cylindrical radian of rotor core part, the width of every block of magnet steel is identical, rotor core can produce induced electromotive force together with stator core, induced current is provided while starting for sliver, between two adjacent magnet steel, are fillers, filler is half magnetic conduction or non-magnet_conductible material, in the outer ring of magnet steel, be surrounded by non-magnetic metal material, in order to reinforce magnet steel and auxiliary sliver completes self-starting.
The invention has the beneficial effects as follows: to the rotor parent of threephase asynchronous process and remould again in addition, magnet steel is assisted in rotor, the polar arc ratio of magnet steel can be adjusted flexibly, make the detent torque of motor adjust flexibly as required to reach and can under full load conditions, reliably start, mechanical strength strengthens greatly, improve reliability, met or exceeded the energy-saving effect of existing permanent magnet synchronous motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is floor map of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
A kind of p-m rotor of threephase asynchronous, comprise axis 1, silicon steel sheet 2, sliver 3, filler 4, magnet steel 5, steel bushing 6, rotor core 7, wherein in the outside of axis 1, circular silicon steel sheet 2 is installed, the sliver 3 of one circle is installed around the outside of silicon steel sheet 2, sliver 3 provides self-starting torque, the outside of sliver 3 is provided with polylith magnet steel 5, the order that magnet steel 5 replaces according to the N-S utmost point is arranged, magnet steel 5 provides permanent-magnetic field when motor incision synchronous operation, every block of magnet steel 5 is divided into n section, every section of height is rotor core 7 length 1/n times, every section of magnet steel 5 is tiltedly arranged and is attached to the rotor surface processing successively according to the skewed slot of sliver 3, the radian of magnet steel 5 equates with the cylindrical radian of rotor core 7 parts, the width of every block of magnet steel 5 is identical, rotor core 7 can produce induced electromotive force together with stator core, induced current is provided while starting for sliver 3, two 5 of adjacent magnet steel are fillers 4, and filler 4 is half magnetic conduction or non-magnet_conductible material, in the outer ring of magnet steel 5, be surrounded by non-magnetic metal material, in order to reinforce magnet steel 5 and auxiliary sliver 3 completes self-starting.
Claims (1)
1. the p-m rotor of a threephase asynchronous, comprise axis, silicon steel sheet, sliver, rotor core, it is characterized in that: also comprise filler, magnet steel, steel bushing, wherein in the outside of axis, circular silicon steel sheet is installed, the sliver of one circle is installed around the outside of silicon steel sheet, the outside of sliver is provided with polylith magnet steel, the order that magnet steel replaces according to the N-S utmost point is arranged, every block of magnet steel is divided into n section, every section of height is rotor core length 1/n times, every section of magnet steel is tiltedly arranged and is attached to the rotor surface processing successively according to the skewed slot of sliver, the radian of magnet steel equates with the cylindrical radian of rotor core part, the width of every block of magnet steel is identical, between two adjacent magnet steel, are fillers, filler is half magnetic conduction or non-magnet_conductible material, in the outer ring of magnet steel, be surrounded by non-magnetic metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288411.0A CN104113152A (en) | 2013-07-10 | 2013-07-10 | Permanent magnet rotor of three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288411.0A CN104113152A (en) | 2013-07-10 | 2013-07-10 | Permanent magnet rotor of three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104113152A true CN104113152A (en) | 2014-10-22 |
Family
ID=51709832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310288411.0A Pending CN104113152A (en) | 2013-07-10 | 2013-07-10 | Permanent magnet rotor of three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104113152A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490419A (en) * | 2016-01-26 | 2016-04-13 | 尚勤贵 | Rotor of self-starting permanent magnet synchronous motor used for three-phase asynchronous motor |
| CN105915004A (en) * | 2016-06-06 | 2016-08-31 | 尚勤贵 | Rotor of motor |
| CN108475949A (en) * | 2016-02-04 | 2018-08-31 | 西门子股份公司 | The rotor of permanent magnet synchronous motor, the interpolar bar of this rotor and the method for manufacturing this rotor |
| CN113659745A (en) * | 2021-08-20 | 2021-11-16 | 内蒙古靓固科技有限责任公司 | Remanufactured three-phase asynchronous motor and manufacturing process and system thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0081676A1 (en) * | 1981-11-20 | 1983-06-22 | Aktiengesellschaft Siemens | Asynchronous generator with rotor-placed permanent magnets |
| CN200944541Y (en) * | 2006-07-25 | 2007-09-05 | 周剑峰 | Skewed slot permanent-magnetic rotor |
| CN203312945U (en) * | 2013-07-10 | 2013-11-27 | 王贤长 | Permanent magnetic rotor of three-phase asynchronous motor |
-
2013
- 2013-07-10 CN CN201310288411.0A patent/CN104113152A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0081676A1 (en) * | 1981-11-20 | 1983-06-22 | Aktiengesellschaft Siemens | Asynchronous generator with rotor-placed permanent magnets |
| CN200944541Y (en) * | 2006-07-25 | 2007-09-05 | 周剑峰 | Skewed slot permanent-magnetic rotor |
| CN203312945U (en) * | 2013-07-10 | 2013-11-27 | 王贤长 | Permanent magnetic rotor of three-phase asynchronous motor |
Non-Patent Citations (1)
| Title |
|---|
| 王秀和等: "《永磁电机》", 31 January 2011, article "《异步启动永磁同步电机》", pages: 192-194 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490419A (en) * | 2016-01-26 | 2016-04-13 | 尚勤贵 | Rotor of self-starting permanent magnet synchronous motor used for three-phase asynchronous motor |
| CN108475949A (en) * | 2016-02-04 | 2018-08-31 | 西门子股份公司 | The rotor of permanent magnet synchronous motor, the interpolar bar of this rotor and the method for manufacturing this rotor |
| CN108475949B (en) * | 2016-02-04 | 2021-03-02 | 西门子股份公司 | Rotor of permanent magnet synchronous motor, interpolar pole of rotor and method for manufacturing rotor |
| US11075554B2 (en) | 2016-02-04 | 2021-07-27 | Siemens Aktiengesellschaft | Rotor for a permanent magnet synchronous machine, pole gap rod for such a rotor, and method for producing such a rotor |
| CN105915004A (en) * | 2016-06-06 | 2016-08-31 | 尚勤贵 | Rotor of motor |
| CN113659745A (en) * | 2021-08-20 | 2021-11-16 | 内蒙古靓固科技有限责任公司 | Remanufactured three-phase asynchronous motor and manufacturing process and system thereof |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141022 |