CN103138444A - 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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- CN103138444A CN103138444A CN2011103879695A CN201110387969A CN103138444A CN 103138444 A CN103138444 A CN 103138444A CN 2011103879695 A CN2011103879695 A CN 2011103879695A CN 201110387969 A CN201110387969 A CN 201110387969A CN 103138444 A CN103138444 A CN 103138444A
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- permanent magnet
- 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, relate in particular to a kind of Over Electric Motor with PMSM rotor.
Background technology
The rotor of frequency conversion permanent magnet synchronous machine has screw rod tension-type and trim ring compression type.
The rotor of screw rod tension-type is only applicable to the low cruise operating mode, and the rotor of trim ring compression type is applicable to the high-speed cruising operating mode.
But assemble trim ring compression type rotor by following method in prior art: trim ring after rotor is set in rotating shaft, after next-door neighbour's rotor, trim ring blocks successively and establishes the multi-disc rotor punching in rotating shaft, place in the permanent magnet trough of permanent magnet in punching, be close to again before the sheathed rotor of rotor punching trim ring in rotating shaft, adopt at last machine with rotor after trim ring, the front trim ring of rotor become as a whole with trim ring after the rotor punching compression makes multi-disc rotor punching, rotor with trim ring before rotor.
Adopt the rotor that assembly method of the prior art is assembled into to have lower column defects: compress again trim ring and rotor punching before trim ring after rotor, rotor after permanent magnet owing to placing in permanent magnet trough, can the crushing permanent magnet.
Summary of the invention
The invention provides a kind of Over Electric Motor with PMSM rotor, this rotor comprises:
Trim ring, rotating shaft, multi-disc rotor punching, the front trim ring of rotor, ring key, permanent magnet and silicon rubber after rotor;
after described rotor, trim ring is contained in described rotating shaft, after the described rotor of described multi-disc rotor punching next-door neighbour, trim ring is laminated in described rotating shaft, before described rotor, the last a slice rotor punching of trim ring next-door neighbour is contained in described rotating shaft, before the described rotor of next-door neighbour, trim ring is offered annular groove in described rotating shaft, described ring key is arranged in described annular groove trim ring before described rotor is carried out axial restraint, be provided with permanent magnet trough and magnet isolation tank on described rotor punching, be provided with permanent magnet in described permanent magnet trough, in described magnet isolation tank, embedding has silicon rubber, after described rotor, the exradius of the front trim ring of trim ring and described rotor is all less than or equal to the first distance, described the first distance is the minimum value of the distance of the central point of selecting this rotor punching on the permanent magnet trough that is positioned on rotor punching.
Due to the exradius of trim ring before trim ring after rotor and rotor all less than or equal to the first distance, the first distance is the minimum value of the distance of the central point of selecting this rotor punching on the permanent magnet trough that is positioned on rotor punching, trim ring can not block permanent magnet trough, so can be after with rotor when assembling rotor of the present invention before trim ring, rotor punching and rotor trim ring compress make its become as a whole after, just place permanent magnet in the permanent magnet trough on rotor punching, the risk of crushing permanent magnet in the time of can avoiding compressing operation.
Description of drawings
Fig. 1 is for placing permanent magnet rotor structure figure before;
Fig. 2 is the structure chart of rotor punching;
Fig. 3 is for placing permanent magnet rotor structure figure afterwards.
Embodiment
Fig. 1 is for placing permanent magnet rotor structure figure before, Fig. 2 is the structure chart of rotor punching, Fig. 3 is for placing permanent magnet rotor structure figure afterwards, as Fig. 1, Fig. 2 and shown in Figure 3, rotor of the present invention comprises trim ring 5 before trim ring 2 after rotor, rotating shaft 1, multi-disc rotor punching 3, rotor, ring key 6, permanent magnet 12 and silicon rubber 13.
after rotor, trim ring 2 is contained in rotating shaft 1, after multi-disc rotor punching 3 next-door neighbour's rotors, trim ring 2 is laminated in rotating shaft 1, before rotor, the trim ring 5 last a slice rotor punchings 3 of next-door neighbour are contained in rotating shaft 1, before next-door neighbour's rotor, trim ring 5 is offered annular groove in rotating shaft 1, ring key 6 is arranged in annular groove trim ring before rotor 5 is carried out axial restraint, be provided with permanent magnet trough 16 and magnet isolation tank on rotor punching 3, be provided with permanent magnet 12 in permanent magnet trough 16, be provided with silicon rubber 13 in magnet isolation tank, after rotor, the exradius of the front trim ring 5 of trim ring 2 and rotor is all less than or equal to the first distance, the first distance is the minimum value of the distance of the central point of selecting this rotor punching on the permanent magnet trough that is positioned on rotor punching.
In rotating shaft 1 after rotor the left side of trim ring 2 have block piece 15, after rotor, axial relative motion can not occur with rotating shaft 1 in trim ring 2; Trim ring after rotor 2 is contained in rotating shaft 1, and after rotor, radially relative motion can not occur with rotating shaft 1 in trim ring 2 yet.
As shown in Figure 2, the centre of rotor punching 3 is provided be used to the through hole that passes rotating shaft 1, is provided with ventilation hole around this through hole, and is provided with permanent magnet trough 16 and magnet isolation tank on rotor punching 3, and permanent magnet trough 16 and magnet isolation tank are connected as a single entity.Rotor punching 3 is by the punching of the low-loss cold rolling electric sheet of high magnetic conduction.
The edge of the through hole on rotor punching 3 is provided with boss 14, this boss 14 be used for and rotating shaft 1 on key 4 (being exactly a groove) coordinate, the relative motion of avoiding rotor punching 3 and rotating shaft 1 to occur radially.
Generally, the thickness low LCL of a slice rotor punching 3 need to laminate multi-disc rotor punching 3 in rotating shaft 1.
In the annular groove that before next-door neighbour's rotor, trim ring 5 is offered in rotating shaft 1, ring key 6 is set, trim ring before rotor 5 can be blocked, prevent that the front trim ring 5 of rotor and rotating shaft 1 from axial relative motion occuring.Preferred scheme is that 3 ring keies are set in annular groove.
Can adopt guided tooling that permanent magnet 12 is placed on 16 li of permanent magnet trough, guided tooling can play the effect of guiding, and permanent magnet 12 is directed in permanent magnet trough 16; In magnet isolation tank, the silicon rubber 13 of embedding can reduce leakage field, can improve the overall performance of motor.
By above-mentioned technical scheme as can be known, due to the exradius of trim ring before trim ring after rotor and rotor all less than or equal to the first distance, the first distance is the minimum value of the distance of the central point of selecting this rotor punching on the permanent magnet trough that is positioned on rotor punching, trim ring can not block permanent magnet trough, so can be after with rotor when assembling rotor of the present invention before trim ring, rotor punching and rotor trim ring compress make its become as a whole after, just place permanent magnet in the permanent magnet trough on rotor punching, the risk of crushing permanent magnet in the time of can avoiding compressing operation.
On the basis of above-described embodiment, rotor also comprises annular endplate 11, annular endplate 11 is set in respectively the cylindrical of trim ring 5 before trim ring 2 after rotor, rotor, after rotor, the cylindrical of the front trim ring 5 of trim ring 2 and rotor all is provided with the first boss, is provided with the first groove that coordinates with the first boss on annular endplate 11.
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 respectively after rotor the cylindrical of trim ring 5 before trim ring 2 and rotor, after rotor, the cylindrical of the front trim ring 5 of trim ring 2 and rotor all is provided with the second boss, and the cylindrical of baffle plate trim ring 10 is provided with the second groove that coordinates with the second boss.
Generally, annular endplate is thinner, and is low weight, can with rotating shaft 1, axial relative motion occur than being easier to, and can avoid above-mentioned problem after next-door neighbour's annular endplate 11 baffled trim rings 10 of cover.
In reality, balance weight 7 can also be set in rotating shaft 1, balance weight 7 is used for keeping rotor balancing.Particularly, sheathed internal sealed ring 9 in rotating shaft 1 adopts screw 8 that balance weight 7 and internal sealed ring 9 is fixing.
Rotor of the present invention is a firm integral body, and mechanical strength is high, is suitable for frequent start-stop, runs up, shakes operating mode, can bear the rotating speed of 5000r/min.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. an Over Electric Motor with PMSM rotor, is characterized in that, comprising:
Trim ring, rotating shaft, multi-disc rotor punching, the front trim ring of rotor, ring key, permanent magnet and silicon rubber after rotor;
after described rotor, trim ring is contained in described rotating shaft, after the described rotor of described multi-disc rotor punching next-door neighbour, trim ring is laminated in described rotating shaft, before described rotor, the last a slice rotor punching of trim ring next-door neighbour is contained in described rotating shaft, before the described rotor of next-door neighbour, trim ring is offered annular groove in described rotating shaft, described ring key is arranged in described annular groove trim ring before described rotor is carried out axial restraint, be provided with permanent magnet trough and magnet isolation tank on described rotor punching, be provided with permanent magnet in described permanent magnet trough, in described magnet isolation tank, embedding has silicon rubber, after described rotor, the exradius of the front trim ring of trim ring and described rotor is all less than or equal to the first distance, described the first distance is the minimum value of the distance of the central point of selecting this rotor punching on the permanent magnet trough that is positioned on rotor punching.
2. rotor according to claim 1, it is characterized in that, also comprise annular endplate, described annular endplate is set in respectively the cylindrical of trim ring before trim ring after described rotor, described rotor, after described rotor, the cylindrical of the front trim ring of trim ring and described rotor all is provided with the first boss, is provided with the first groove that coordinates with described the first boss on described annular endplate.
3. rotor according to claim 2, it is characterized in that, also comprise the baffle plate trim ring, the described end plate of described baffle plate trim ring next-door neighbour is set in respectively after described rotor the cylindrical of trim ring before trim ring and described rotor, after described rotor, the cylindrical of the front trim ring of trim ring and described rotor all is provided with the second boss, the second groove that the cylindrical setting of described plate washer trim ring coordinates with described the second boss.
4. according to claim 1-3 arbitrary described rotors, 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 true CN103138444A (en) | 2013-06-05 |
| CN103138444B CN103138444B (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110387969.5A Active CN103138444B (en) | 2011-11-29 | 2011-11-29 | Permanent magnet synchronous motor rotor used for electric automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN103138444B (en) |
Cited By (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 (5)
| 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 |
| 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 |
| CN101656448A (en) * | 2009-08-25 | 2010-02-24 | 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 |
| JP2011019298A (en) * | 2009-07-07 | 2011-01-27 | Toyota Industries Corp | Rotor for motor and method of manufacturing the rotor for motor |
-
2011
- 2011-11-29 CN CN201110387969.5A patent/CN103138444B/en active Active
Patent Citations (5)
| 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 |
| 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 |
| CN101656448A (en) * | 2009-08-25 | 2010-02-24 | 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103138444B (en) | 2015-06-03 |
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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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