CN103138444B - Permanent magnet synchronous motor rotor used for electric automobile - Google Patents
Permanent magnet synchronous motor rotor used for electric automobile Download PDFInfo
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- CN103138444B CN103138444B CN201110387969.5A CN201110387969A CN103138444B CN 103138444 B CN103138444 B CN 103138444B CN 201110387969 A CN201110387969 A CN 201110387969A CN 103138444 B CN103138444 B CN 103138444B
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- rotating shaft
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Abstract
A permanent magnet synchronous motor rotor used for an electric automobile comprises a rotor back pressing ring, a rotating shaft, a plurality of rotor sheets, a rotor front pressing ring, an annular bond, permanent magnets and silicon rubber. The rotor back pressing ring is installed on the rotating shaft, the plurality of rotor sheets are closely adjacent to the rotor back pressing ring and are pressed on the rotating shaft in a laminated mode, the rotor front pressing ring is closely adjacent to the last piece of the rotor sheets and is installed on the rotating shaft, the annular bond is arranged on the rotating shaft, closely adjacent to the rotor front pressing ring, the annular bond is arranged in the annular bond to enable the rotor front pressing ring to be axially fixed, permanent magnet slots and magnetism isolation slots are arranged on the rotor sheets, the permanent magnets are arranged in the permanent magnetic slots, the silicon rubber is encapsulated in the magnetism isolation slots, the exradius of the rotor back pressing ring and the exradius of the rotor front pressing ring are both smaller than or equal to a first distance, and the first distance is the minimum value of distances between the points on the permanent magnet slots located on the rotor sheets and the central point of the rotor sheets. When the permanent magnet synchronous motor rotor in the structure is assembled, the risk that the permanent magnets are pressed and damaged when compressing operation is carried out can be avoided.
Description
Technical field
The present invention relates to rotor, particularly relate to a kind of Over Electric Motor with PMSM rotor.
Background technology
The rotor of frequency conversion permanent magnet synchronous machine has tie-rod formula and trim ring compression type.
The rotor of tie-rod formula is only applicable to low cruise operating mode, and the rotor of trim ring compression type is applicable to high-speed cruising operating mode.
But by following method assembling trim ring compression type rotor in prior art: trim ring after rotor is set in rotating shaft, after next-door neighbour's rotor, trim ring blocks successively and establishes multi-disc rotor punching in rotating shaft, place in the permanent magnet trough of permanent magnet in punching, before being close to the sheathed rotor of rotor punching again, trim ring is in rotating shaft, finally adopt machine trim ring before trim ring, rotor after rotor and rotor punching are compressed make multi-disc rotor punching, rotor after trim ring become as a whole with trim ring before rotor.
There is lower column defects in the rotor that adopts assembly method of the prior art to be assembled into: owing to compressing trim ring and rotor punching before trim ring after rotor, rotor after place permanent magnet in permanent magnet trough again, can crushing permanent magnet.
Summary of the invention
The invention provides a kind of Over Electric Motor with PMSM rotor, this rotor comprises:
Trim ring, ring key, permanent magnet and silicon rubber before trim ring, rotating shaft, multi-disc rotor punching, rotor after rotor;
After described rotor, trim ring is contained in described rotating shaft, after described multi-disc rotor punching is close to described rotor, trim ring is laminated in described rotating shaft, before described rotor, trim ring is close to last a slice rotor punching and is contained in described rotating shaft, before described rotating shaft is close to described rotor, annular groove offered by trim ring, described ring key is arranged in described annular groove and trim ring before described rotor is carried out axial restraint, described rotor punching is provided with permanent magnet trough and magnet isolation tank, permanent magnet is provided with in described permanent magnet trough, in described magnet isolation tank, embedding has silicon rubber, after described rotor, before trim ring and described rotor, the exradius of trim ring is all less than or equal to the first distance, described first distance is for being positioned at the minimum value selecting the distance of the central point of this rotor punching in the permanent magnet trough on rotor punching.
Because before trim ring after rotor and rotor, the exradius of trim ring is all less than or equal to the first distance, first distance is for being positioned at the minimum value selecting the distance of the central point of this rotor punching in the permanent magnet trough on rotor punching, trim ring can not block permanent magnet trough, so can after before trim ring, rotor punching and rotor, trim ring compresses and becomes an entirety after by rotor when assembling rotor of the present invention, permanent magnet is placed, the risk of crushing permanent magnet when can avoid carrying out compression operation in permanent magnet trough just on rotor punching.
Accompanying drawing explanation
Fig. 1 places the rotor structure figure before permanent magnet;
Fig. 2 is the structure chart of rotor punching;
Fig. 3 places the rotor structure figure after permanent magnet.
Embodiment
Fig. 1 places the rotor structure figure before permanent magnet, Fig. 2 is the structure chart of rotor punching, Fig. 3 places the rotor structure figure after permanent magnet, as shown in Figure 1, Figure 2 and Figure 3, rotor of the present invention comprises trim ring 5, ring key 6, permanent magnet 12 and silicon rubber 13 before trim ring 2 after rotor, rotating shaft 1, multi-disc rotor punching 3, rotor.
After rotor, trim ring 2 is contained in rotating shaft 1, after multi-disc rotor punching 3 is close to rotor, trim ring 2 is laminated in rotating shaft 1, before rotor, trim ring 5 is close to last a slice rotor punching 3 and is contained in rotating shaft 1, before rotating shaft 1 is close to rotor, annular groove offered by trim ring 5, ring key 6 is arranged in annular groove and trim ring before rotor 5 is carried out axial restraint, rotor punching 3 is provided with permanent magnet trough 16 and magnet isolation tank, permanent magnet 12 is provided with in permanent magnet trough 16, silicon rubber 13 is provided with in magnet isolation tank, after rotor, before trim ring 2 and rotor, the exradius of trim ring 5 is all less than or equal to the first distance, first distance is for being positioned at the minimum value selecting the distance of the central point of this rotor punching in the permanent magnet trough on rotor punching.
In rotating shaft 1, there is block piece 15 in the left side of trim ring 2 after rotor, and after rotor, trim ring 2 with rotating shaft 1, axial relative motion can not occur; Be contained in by trim ring after rotor 2 in rotating shaft 1, after rotor also can not there is radial relative motion with rotating shaft 1 in trim ring 2.
As shown in Figure 2, the centre of rotor punching 3 is provided with for the through hole through rotating shaft 1, and around this through hole, be provided with ventilation hole, and rotor punching 3 is provided with permanent magnet trough 16 and magnet isolation tank, permanent magnet trough 16 and magnet isolation tank are connected as a single entity.Rotor punching 3 is by the punching of high magnetic conduction low-loss cold rolling electric sheet.
The edge of the through hole on rotor punching 3 is provided with boss 14, and this boss 14, for coordinating with the key 4 (being exactly a groove) in rotating shaft 1, avoids rotor punching 3 and rotating shaft 1 that radial relative motion occurs.
Under normal circumstances, the thickness low LCL of a slice rotor punching 3, needs to laminate multi-disc rotor punching 3 in rotating shaft 1.
Arrange ring key 6 in the annular groove that before rotating shaft 1 is close to rotor, trim ring 5 is offered, trim ring before rotor 5 can be blocked, before preventing rotor there is axial relative motion in trim ring 5 and rotating shaft 1.Preferred scheme is, arranges 3 ring keies in annular groove.
Can adopt guided tooling that permanent magnet 12 is placed on permanent magnet trough 16 li, guided tooling can play the effect of guiding, is directed to by permanent magnet 12 in permanent magnet trough 16; The silicon rubber 13 of embedding in magnet isolation tank can reduce leakage field, can improve the overall performance of motor.
From above-mentioned technical scheme, because before trim ring after rotor and rotor, the exradius of trim ring is all less than or equal to the first distance, first distance is for being positioned at the minimum value selecting the distance of the central point of this rotor punching in the permanent magnet trough on rotor punching, trim ring can not block permanent magnet trough, so can after before trim ring, rotor punching and rotor, trim ring compresses and becomes an entirety after by rotor when assembling rotor of the present invention, permanent magnet is placed, the risk of crushing permanent magnet when can avoid carrying out compression operation in permanent magnet trough just on rotor punching.
On the basis of above-described embodiment, rotor also comprises annular endplate 11, annular endplate 11 is set in the cylindrical of trim ring 5 before trim ring 2 after rotor, rotor respectively, after rotor, before trim ring 2 and rotor, the cylindrical of trim ring 5 is all provided with the first boss, annular endplate 11 is provided with the first groove coordinated with the first boss.
End plate 11 can block the permanent magnet 12 in permanent magnet trough 16, avoids permanent magnet 12 and adsorbs extraneous ironware.
On the basis of above-described embodiment, rotor of the present invention also comprises baffle plate trim ring 10, baffle plate trim ring next-door neighbour end plate 11 is set in the cylindrical of trim ring 5 before trim ring 2 and rotor after rotor respectively, after rotor, before trim ring 2 and rotor, the cylindrical of trim ring 5 is all provided with the second boss, and the cylindrical of baffle plate trim ring 10 is provided with the second groove coordinated with the second boss.
Generally, annular endplate is thinner, gentlier, with rotating shaft 1, axial relative motion can occur than being easier to, and next-door neighbour's annular endplate 11 can avoid above-mentioned problem after overlapping baffled trim ring 10.
In reality, can also arrange balance weight 7 in rotating shaft 1, balance weight 7 is for maintaining rotor balancing.Particularly, sheathed internal sealed ring 9 in rotating shaft 1, adopts screw 8 balance weight 7 and internal sealed ring 9 to be fixed.
Rotor of the present invention is a firm entirety, and mechanical strength is high, is suitable for frequent start-stop, runs up, shakes operating mode, can bear the rotating speed of 5000r/min.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (3)
1. an Over Electric Motor with PMSM rotor, is characterized in that, comprising:
Trim ring, ring key, permanent magnet and silicon rubber before trim ring, rotating shaft, multi-disc rotor punching, rotor after rotor;
After described rotor, trim ring is contained in described rotating shaft, after described multi-disc rotor punching is close to described rotor, trim ring is laminated in described rotating shaft, before described rotor, trim ring is close to last a slice rotor punching and is contained in described rotating shaft, before described rotating shaft is close to described rotor, annular groove offered by trim ring, described ring key is arranged in described annular groove and trim ring before described rotor is carried out axial restraint, described rotor punching is provided with permanent magnet trough and magnet isolation tank, permanent magnet is provided with in described permanent magnet trough, in described magnet isolation tank, embedding has silicon rubber, after described rotor, before trim ring and described rotor, the exradius of trim ring is all less than or equal to the first distance, described first distance is for being positioned at the minimum value selecting the distance of the central point of this rotor punching in the permanent magnet trough on rotor punching,
Also comprise annular endplate, described annular endplate is set in the cylindrical of trim ring before trim ring after described rotor, described rotor respectively, after described rotor, before trim ring and described rotor, the cylindrical of trim ring is all provided with the first boss, described annular endplate is provided with the first groove coordinated with described first boss.
2. rotor according to claim 1, it is characterized in that, also comprise baffle plate trim ring, described baffle plate trim ring is close to the cylindrical that described end plate is set in trim ring before trim ring and described rotor after described rotor respectively, after described rotor, before trim ring and described rotor, the cylindrical of trim ring is all provided with the second boss, and the cylindrical of described baffle plate trim ring arranges the second groove coordinated with described second boss.
3. rotor according to claim 1 and 2, is characterized in that, is provided with 3 ring keies in described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387969.5A CN103138444B (en) | 2011-11-29 | 2011-11-29 | Permanent magnet synchronous motor rotor used for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387969.5A CN103138444B (en) | 2011-11-29 | 2011-11-29 | Permanent magnet synchronous motor rotor used for electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103138444A CN103138444A (en) | 2013-06-05 |
| CN103138444B true CN103138444B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110387969.5A Active CN103138444B (en) | 2011-11-29 | 2011-11-29 | Permanent magnet synchronous motor rotor used for electric automobile |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746482A (en) * | 2014-01-22 | 2014-04-23 | 永济新时速电机电器有限责任公司 | Ship propelling permanent-magnetic motor rotor structure |
| CN104767305A (en) * | 2015-04-24 | 2015-07-08 | 永济新时速电机电器有限责任公司 | Novel rotor of permanent magnet motor |
| CN106451986A (en) * | 2016-12-18 | 2017-02-22 | 江苏超力电器有限公司 | Direct current brushless motor |
| CN107359754A (en) * | 2017-08-31 | 2017-11-17 | 重庆赛力盟电机有限责任公司 | A kind of mounting means of magnet steel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282373Y (en) * | 2008-10-27 | 2009-07-29 | 永济新时速电机电器有限责任公司 | Rotor of variable frequency permanent magnet synchronous motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332304Y (en) * | 2008-11-28 | 2009-10-21 | 黄延允 | Rotor for magnetoelectric machine |
| CN201369658Y (en) * | 2008-12-13 | 2009-12-23 | 永济新时速电机电器有限责任公司 | Variable-frequency permanent magnet synchronous motor |
| JP2011019298A (en) * | 2009-07-07 | 2011-01-27 | Toyota Industries Corp | Rotor for motor and method of manufacturing the rotor for motor |
| CN101656448B (en) * | 2009-08-25 | 2012-10-03 | 上海电器科学研究所（集团）有限公司 | Key manufacturing technology of built-in type permanent magnet synchronous electric motor rotor |
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2011
- 2011-11-29 CN CN201110387969.5A patent/CN103138444B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282373Y (en) * | 2008-10-27 | 2009-07-29 | 永济新时速电机电器有限责任公司 | Rotor of variable frequency permanent magnet synchronous motor |
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| CN103138444A (en) | 2013-06-05 |
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Address after: 044502 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044502 Shanxi city of Yuncheng province Yongji City Motor Street No. 18 Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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