CN201601540U - Permanent-magnet motor rotor structure - Google Patents
Permanent-magnet motor rotor structure Download PDFInfo
- Publication number
- CN201601540U CN201601540U CN2009201250672U CN200920125067U CN201601540U CN 201601540 U CN201601540 U CN 201601540U CN 2009201250672 U CN2009201250672 U CN 2009201250672U CN 200920125067 U CN200920125067 U CN 200920125067U CN 201601540 U CN201601540 U CN 201601540U
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- rotor
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- ditch
- isolation tank
- magnetic
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Abstract
The utility model relates to a permanent-motor rotor structure, which is particularly applicable in motors of beam-pumping units. The technical scheme includes that a stack of iron core laminations are mounted on a shaft of a rotor, a plurality of squirrel-cage winding grooves are arranged on each iron core lamination, shaft holes are arranged in the centers of the laminations, and a plurality of magnet grooves in even-number amount are disposed inside the squirrel-cage winding grooves. The rotor structure is mainly characterized in that a plurality of air magnetic-insulating grooves/ditches and a plurality of tangential magnetic-insulating grooves/ditches are distributed on the iron core laminations of the rotor and have double functions of fixing a permanent magnet and magnetic insulation. The permanent-motor rotor structure has the advantages that 1, after an operation manner of the motor is altered from an asynchronous manner into a synchronous operation manner due to internal structural modification, secondary copper loss is lowered, and motor efficiency is improved, and 2, lamination strength is greatly improved by adding the air magnetic-insulating grooves/ditches and combining the tangential magnetic-insulating grooves/ditches, and overall strength of the rotor is enhanced via epoxy resin sealant, thereby creating conditions for mass production.
Description
Technical field
The utility model relates to a kind of rotor structure for permanent magnet motor, and motor is converted to the run-in synchronism mode by asynchronous starting, belongs to technical field of motors, is particularly useful for the beam pumping unit motor.
Background technology
In recent years, along with the development of modern control theory and technology, the technology that adopts rare earth to make permanent magnet motor constantly improves, and uses widely in the traction machine of elevator.On the oil pumper in oil field, testing simultaneously and during preparation applies.The motor that the beam pumping unit of reality adopts mainly is an asynchronous machine, because such motor is to produce moment of torsion by the formed magnetic field of the induced current of difference in sliver of rotational frequency between rotor and the stator excitation magnetic field and stator field, therefore its rotating speed does not reach synchronous speed forever, and, influenced electric efficiency because the resistance of rotor bar can produce loss.Though all synchronous machine efficient height can reach synchronous speed, the self-starting difficulty.The rotor structure for permanent magnet motor that the utility model relates to is the rotor structure of line-start permanent magnetic synchronous motor, is that prior art is unexistent.
Summary of the invention
The purpose of this utility model provides a kind of rotor structure for permanent magnet motor, be converted to the permanent-magnetic synchronous motor rotor structure of run-in synchronism mode for asynchronous starting, reduced the secondary copper loss, improved electric efficiency, and make rotating speed of motor bring up to synchronous speed, be particularly useful for the beam pumping unit motor.
The purpose of this utility model is achieved in that a kind of rotor structure for permanent magnet motor, be converted to the permanent-magnetic synchronous motor rotor structure of run-in synchronism mode for asynchronous starting, specifically be on the axle of rotor, the core stamping lamination to be housed, every core stamping is provided with some mouse cage slot for windings, the punching center is provided with axis hole, mouse cage slot for winding inboard is provided with the magnet slot of some one-tenth even numbers, mainly be in the rotor core punching, distribute several air magnet isolation tank/ditches and tangential magnet isolation tank/ditch, have fixed permanent magnet and every the double action of magnetic.
The utility model compared with prior art has following good effect:
1, by inboard some rare-earth permanent magnets is set, the motor rotation mode is changed into to after the run-in synchronism mode by the asynchronous running mode, reduced the secondary copper loss, improved electric efficiency, and made rotating speed of motor bring up to synchronous speed at traditional mouse cage winding.
2, by increasing air magnet isolation tank/ditch,, under the prerequisite that has guaranteed little leakage field, improved the intensity of punching greatly in conjunction with tangential magnet isolation tank/ditch; By fillers such as filling epoxy resin casting glues, increased the intensity of whole rotor again.
3, when making punching, the mouse cage slot for winding be can go out earlier, magnet steel and air magnet isolation tank gone out again, go out tangential magnet isolation tank at last, can under the prerequisite that guarantees little leakage field, improve the intensity of punching like this, reduce the difficulty that punching is made, for condition has been created in production in enormous quantities.Actual production shows, present this structure can improve motor of beam-pumping unit efficient more than 10% satisfying under the prerequisite of starting performance, and can large batch ofly produce.
Description of drawings
Fig. 1 is the utility model rotor punching structural representation.
Fig. 2 is the utility model rotor core shaft side figure.
Indicate among the figure: 1, rotor punching, 2, the mouse cage slot for winding, 3, air magnet isolation tank/ditch, 4, magnet slot, 5, every the magnetic magnetic bridge, 6, tangential magnet isolation tank/ditch, 7, axis hole, 8, air magnet isolation tank/ditch.
Embodiment
Accompanying drawing 1 is the structural representation of the utility model most preferred embodiment.
Accompanying drawing 2 is the utility model rotor core shaft side figure.
Further describe the utility model detailed technology content below in conjunction with accompanying drawing.
The utility model relates to a kind of rotor structure for permanent magnet motor, comprise squirrel cage motor rotor and the rotor core that is contained on the rotor axis of electric, and every magnetic magnetic bridge 5, it is characterized in that: rotor core is overrided to form by rotor punching 1, some mouse cage slot for windings 2 are arranged on every rotor punching 1, at the center of rotor punching 1 is axis hole 7, wherein
Be provided with the magnet slot 4 that several become even number in the inboard of described mouse cage slot for winding 2.
Described rotor punching 1 is provided with several air magnet isolation tank/ ditches 3,8 and several tangential magnet isolation tank/ditches 6.
Described air magnet isolation tank/ditch 3 is arranged between magnet slot 4 and the corresponding with it mouse cage slot for winding.
Described air magnet isolation tank/ditch 8 is arranged between described magnet slot 4 and the axis hole 7.
Described rotor structure for permanent magnet motor, when the external diameter of described rotor punching 1 was φ 260mm, described a, b size were between 1mm～3mm, and the c size is between 3mm～6mm.
The top and the bottom of the magnet slot 4 of described rotor punching 1 are respectively equipped with air magnet isolation tank/ditch 3 and air magnet isolation tank/ditch 8, play fixed permanent magnet and every magnetic.
Described air magnet isolation tank/ditch 3, air magnet isolation tank/ditch 8 and described tangential magnet isolation tank/ditch 6 are after rotor punching 1 laminates, by fillers such as filling epoxy resin casting glues, to increase the intensity of whole rotor.
The center of rotor punching 1 of the present utility model is provided with axis hole 7, is provided with 8 magnet slot 4 in mouse cage slot for winding 2 inboards, and the width of magnet slot 4 is the thickness of the permanent magnet that is bumped into; Punching is behind lamination, the mode of employing polylith splicing is bumped into the permanent magnet of rectangle, and permanent magnet should be selected high performance permanent magnetic materials for use, as selects neodymium iron boron for use, magnet slot 4 be respectively equipped with air magnet isolation tank 3 and air magnet isolation tank/ditch 8 up and down, be provided with tangential magnet isolation tank 6 in tangential direction every magnetic magnetic bridge 5.With rotor punching external diameter φ 260mm is example, has satisfied above-mentioned a, and b after the size range of c, can play one well every the magnetic effect under the prerequisite that guarantees punching intensity.When making punching, can go out the mouse cage slot for winding earlier, go out magnet steel and air magnet isolation tank again, go out tangential magnet isolation tank at last.After punching laminates, can in the air magnet isolation tank of rotor and tangential magnet isolation tank, fill up the intensity that filler such as epoxy resin embedding adhesive increases whole rotor.
The utility model only is described in detail with regard to a most preferred embodiment of the present utility model; but can not be interpreted as the restriction of other modes that the utility model is implemented; everyly further improve and similar or identical scheme on the utility model basis, all being considered as is the scope that the utility model is asked for protection.
Claims (6)
1. rotor structure for permanent magnet motor, comprise squirrel cage motor rotor and the rotor core that is contained on the rotor axis of electric, and every magnetic magnetic bridge (5), it is characterized in that: rotor core is overrided to form by rotor punching (1), some mouse cage slot for windings (2) are arranged on every rotor punching (1), at the center of rotor punching (1) is axis hole (7), wherein
Be provided with the magnet slot (4) that several become even number in the inboard of described mouse cage slot for winding (2);
Described rotor punching (1) is provided with several air magnet isolation tanks or ditch (3), (8) and several tangential magnet isolation tanks or ditch (6).
2. rotor structure for permanent magnet motor according to claim 1 is characterized in that: described air magnet isolation tank or ditch (3) are arranged in the outside of rotor punching (1) and magnet slot (4), leave gap (a) between them and use for holding air for 1mm～3mm.
3. rotor structure for permanent magnet motor according to claim 1, it is characterized in that: it is corresponding in the centre that described air magnet isolation tank or ditch (8) are arranged in described magnet slot (4) inboard and tangential magnet isolation tank or ditch (6), leaves gap (b) between them and use for holding air for 1mm～3mm.
4. rotor structure for permanent magnet motor according to claim 1 is characterized in that: when the external diameter of described rotor punching (1) is φ 260mm, described gap (c) is between 3mm～6mm.
5. rotor structure for permanent magnet motor according to claim 1, it is characterized in that: described tangential magnet isolation tank or ditch (6), and the top and the bottom of the magnet slot (4) of rotor punching (1) are respectively equipped with air magnet isolation tank or ditch (3), play fixed permanent magnet and every magnetic.
6. rotor structure for permanent magnet motor according to claim 1, it is characterized in that: described air magnet isolation tank or ditch (3) and described tangential magnet isolation tank or ditch (6), after rotor punching (1) laminates, by the epoxy resin sealing, to increase the intensity of whole rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201250672U CN201601540U (en) | 2009-07-17 | 2009-07-17 | Permanent-magnet motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201250672U CN201601540U (en) | 2009-07-17 | 2009-07-17 | Permanent-magnet motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201601540U true CN201601540U (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201250672U Expired - Lifetime CN201601540U (en) | 2009-07-17 | 2009-07-17 | Permanent-magnet motor rotor structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN201601540U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916543A (en) * | 2012-10-23 | 2013-02-06 | 浙江西子富沃德电机有限公司 | Low-voltage asynchronous motor for electric fork-lift truck |
| WO2013037305A1 (en) * | 2011-09-15 | 2013-03-21 | 蒂森克虏伯电梯（上海）有限公司 | Rotor, and motor, elevator traction machine or servo drive mechanism comprising same |
| CN103887936A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Production method for hub motor rotor with embedded radial permanent magnet steel and embedded tangential permanent magnet steel |
| CN104037965A (en) * | 2014-06-19 | 2014-09-10 | 浙江西传电气科技有限公司 | Rotor structure of permanent magnet synchronous motor |
| CN104953739A (en) * | 2014-03-26 | 2015-09-30 | 无锡华东电机科技发展有限公司 | 16-pole permanent magnet motor integrated rotor punching sheet |
| CN105322743A (en) * | 2014-05-27 | 2016-02-10 | 高大田 | Special efficient motor for oilfields |
| CN106230153A (en) * | 2016-09-26 | 2016-12-14 | 威灵（芜湖）电机制造有限公司 | Rotor core, rotor and self-starting permanent magnet synchronous motor |
| CN110299812A (en) * | 2019-07-08 | 2019-10-01 | 哈尔滨理工大学 | A kind of cryogenic pump permanent magnet motor structure |
| CN114915066A (en) * | 2022-05-30 | 2022-08-16 | 河南黄河旋风股份有限公司 | Permanent magnet motor rotor |
-
2009
- 2009-07-17 CN CN2009201250672U patent/CN201601540U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013037305A1 (en) * | 2011-09-15 | 2013-03-21 | 蒂森克虏伯电梯（上海）有限公司 | Rotor, and motor, elevator traction machine or servo drive mechanism comprising same |
| CN102916543A (en) * | 2012-10-23 | 2013-02-06 | 浙江西子富沃德电机有限公司 | Low-voltage asynchronous motor for electric fork-lift truck |
| CN104953739A (en) * | 2014-03-26 | 2015-09-30 | 无锡华东电机科技发展有限公司 | 16-pole permanent magnet motor integrated rotor punching sheet |
| CN103887936A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Production method for hub motor rotor with embedded radial permanent magnet steel and embedded tangential permanent magnet steel |
| CN105322743A (en) * | 2014-05-27 | 2016-02-10 | 高大田 | Special efficient motor for oilfields |
| CN104037965A (en) * | 2014-06-19 | 2014-09-10 | 浙江西传电气科技有限公司 | Rotor structure of permanent magnet synchronous motor |
| CN106230153A (en) * | 2016-09-26 | 2016-12-14 | 威灵（芜湖）电机制造有限公司 | Rotor core, rotor and self-starting permanent magnet synchronous motor |
| CN110299812A (en) * | 2019-07-08 | 2019-10-01 | 哈尔滨理工大学 | A kind of cryogenic pump permanent magnet motor structure |
| CN114915066A (en) * | 2022-05-30 | 2022-08-16 | 河南黄河旋风股份有限公司 | Permanent magnet motor rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |
|
| CX01 | Expiry of patent term |