CN103683585A - Permanent magnet motor rotor - Google Patents
Permanent magnet motor rotor Download PDFInfo
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- CN103683585A CN103683585A CN201210316614.1A CN201210316614A CN103683585A CN 103683585 A CN103683585 A CN 103683585A CN 201210316614 A CN201210316614 A CN 201210316614A CN 103683585 A CN103683585 A CN 103683585A
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- permanent magnet
- rotor
- yoke
- magnet machine
- rotor yoke
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a permanent magnet motor rotor, relates to a motor rotor structure and solves the problems that the fixation of a permanent magnet is not facilitated because the magnet yoke of the conventional rotor needs to be spliced, and the process is complex. The permanent magnet motor rotor comprises a rotor magnet yoke and the permanent magnet, wherein the rotor magnet yoke is a cylinder, the permanent magnet is fixed on the outer surface of the side face of the rotor magnet yoke, and the rotor magnet yoke is a nodular cast iron rotor magnet yoke. Compared with the prior art, the permanent magnet motor rotor is beneficial to the installation and fixation of the permanent magnet, and the cost is low.
Description
Technical field
The present invention relates to a kind of motor rotor construction.
Background technology
Along with the development of magneto manufacturing technology and control technology thereof, magneto especially high-power permanent magnet motor has progressively replaced asynchronous machine to be applied to widely in various industrial circles.Rotor is as the critical piece of magneto, and the reasonability of its structural design, the simplicity of technique etc. has important impact to the manufacture of motor, stable operation etc.At present, the rotor structure of magneto mainly contains surface-mount type and embedded.
Although embedded structure permanent magnet is installed firmly but complex process.Therefore, surface-mounted permanent magnet machine application simple in structure, with low cost is more extensive.The yoke portion of surface-mount type magnetic steel structure rotor is many is made by silicon steel sheet or cast steel, due to silicon steel sheet or cast steel cost higher, and complex process, and rotor external diameter need to be spliced when larger, is unfavorable for that the installation of permanent magnet is fixed
Summary of the invention
In order to solve rotor yoke, need splicing, be unfavorable for that permanent magnet is fixed and the problem of complex process, the present invention proposes a kind of permanent magnet machine rotor.
Permanent magnet machine rotor, comprises rotor yoke and permanent magnet, and described rotor yoke is cylinder, and described permanent magnet is fixed on the outer surface of rotor yoke side, and described rotor yoke is spheroidal graphite cast-iron rotor yoke.
Preferably, described rotor yoke center is provided with the axis hole coordinating with axle.
Preferably, described axis hole is the circular hole with keyway.
Preferably, described rotor yoke is identical with permanent magnet length vertically,
Preferably, permanent magnet is multi-disc permanent magnet, the outer surface that is fixed on rotor yoke that described multi-disc permanent magnet is even and symmetrical.
Preferably, described permanent magnet machine rotor also comprises rotor jacket, and described rotor jacket is sealed in permanent magnet outer surface.
Preferably, rotor yoke is even and symmetrical is vertically provided with a plurality of ventilation holes.
Preferably, described permanent magnet machine rotor also comprises the rotor press plate of the outer surface that is fixed on two end faces of rotor yoke.
Preferably, rotor press plate is multi-disc steel plate, and described multi-disc rotor press plate evenly and is symmetrically fixed on the outer surface of two end faces of rotor yoke.
Preferably, permanent magnet is circular arc surface-mount type, identical along axis direction width, and the cross section of vertical axis direction is the fan-shaped of thick middle, thin edge.
Compared with prior art, it is fixing, with low cost that the present invention is beneficial to permanent magnet installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the permanent magnet machine rotor of the embodiment of the present invention;
Fig. 2 is the permanent magnet machine rotor cross-sectional view of the embodiment of the present invention;
Fig. 3 is the rotor yoke structural representation of the embodiment of the present invention;
Fig. 4 is the magnet structure schematic diagram of the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, the embodiment in the application and the feature in embodiment be combination in any mutually.
In conjunction with Fig. 1 and Fig. 2, embodiments of the invention are described, the permanent magnet machine rotor of the embodiment of the present invention mainly comprises rotor yoke 1 and permanent magnet 2, described rotor yoke 1 is cylinder, and described permanent magnet 2 is fixed on the outer surface of rotor yoke 1 side, and described rotor yoke 1 is spheroidal graphite cast-iron rotor yoke.
Described spheroidal graphite cast-iron is QT450 spheroidal graphite cast-iron.
The embodiment of the present invention adopts spheroidal graphite cast-iron to manufacture the rotor yoke 1 of high-power permanent magnet motor, permanent magnet 2 is bonded at rotor yoke 1 outer surface, spheroidal graphite cast-iron can cast out by full circle, to solve prior art rotor yoke 1, needs splicing, is unfavorable for that permanent magnet is fixed and the problem of complex process.
As shown in Figure 3, rotor yoke 1 center is provided with axis hole 6, and its central axis hole 6 is used for coordinating with axle with keyway.
As depicted in figs. 1 and 2, permanent magnet 2 is multi-disc permanent magnet, the even and symmetrical outer surface that is fixed on rotor yoke 1.Permanent magnet 2 is outer can adopt rotor jacket 3 sealings, and permanent magnet 2 flies out when preventing high speed.Rotor yoke 1 is identical with permanent magnet 2 length vertically, and two ends are fixed by rotor press plate 4, and rotor press plate 4 is made by steel plate, and rotor press plate 4 can be multi-disc, evenly and is symmetrically fixed on the outer surface of 1 two end faces of rotor yoke.Rotor yoke 1 is cast with ventilation hole 5, and described ventilation hole 5 can alleviate rotor weight.
As shown in Figure 4, can adopt Nd-Fe-Bo permanent magnet material as permanent magnet 2, described permanent magnet 2 is circular arc surface-mount type.Permanent magnet 2 can adopt special gelatin to stick at the outer round surface of rotor yoke 1.Specifically permanent magnet 2 is identical along axis direction width, and the cross section of vertical axis direction is the fan-shaped of thick middle, thin edge.
Described Nd-Fe-Bo permanent magnet material is N35SH Nd-Fe-Bo permanent magnet material.
The permanent magnet machine rotor of the embodiment of the present invention can, for high-power permanent magnet motor, have the permanent magnet of being beneficial to the advantages such as fixing, structural manufacturing process is simple, permanent magnet installation is firm, with low cost are installed.
Although the disclosed execution mode of the present invention as above, the execution mode that described content just adopts for the ease of understanding the present invention, not in order to limit the present invention.Technical staff in any the technical field of the invention; do not departing under the prerequisite of the disclosed spirit and scope of the present invention; can do any modification and variation what implement in form and in details; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (10)
1. a permanent magnet machine rotor, it is characterized in that, described permanent magnet machine rotor comprises rotor yoke (1) and permanent magnet (2), described rotor yoke (1) is cylinder, described permanent magnet (2) is fixed on the outer surface of rotor yoke (1) side, and described rotor yoke (1) is spheroidal graphite cast-iron rotor yoke.
2. permanent magnet machine rotor as claimed in claim 1, is characterized in that:
Described rotor yoke (1) center is provided with the axis hole (6) coordinating with axle.
3. permanent magnet machine rotor as claimed in claim 2, is characterized in that:
Described axis hole (6) is the circular hole with keyway.
4. permanent magnet machine rotor as claimed in claim 1, is characterized in that:
Described rotor yoke (1) is identical with permanent magnet (2) length vertically.
5. permanent magnet machine rotor as claimed in claim 1, is characterized in that:
Permanent magnet (2) is multi-disc permanent magnet, the outer surface that is fixed on rotor yoke (1) that described multi-disc permanent magnet (2) is even and symmetrical.
6. permanent magnet machine rotor as claimed in claim 5, is characterized in that: described permanent magnet machine rotor also comprises rotor jacket (3), and described rotor jacket (3) is sealed in permanent magnet (2) outer surface.
7. permanent magnet machine rotor as claimed in claim 1, is characterized in that: rotor yoke (1) is the even and symmetrical a plurality of ventilation holes (5) that are provided with vertically.
8. the permanent magnet machine rotor as described in claim as arbitrary in claim 1-7, is characterized in that: described permanent magnet machine rotor also comprises the rotor press plate (4) of the outer surface that is fixed on (1) two end face of rotor yoke.
9. permanent magnet machine rotor as claimed in claim 8, is characterized in that: rotor press plate (4) is multi-disc steel plate, and described multi-disc rotor press plate (4) evenly and is symmetrically fixed on the outer surface of (1) two end face of rotor yoke.
10. permanent magnet machine rotor as claimed in claim 5, is characterized in that: permanent magnet (2) is circular arc surface-mount type, identical along axis direction width, and the cross section of vertical axis direction is the fan-shaped of thick middle, thin edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316614.1A CN103683585A (en) | 2012-08-30 | 2012-08-30 | Permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210316614.1A CN103683585A (en) | 2012-08-30 | 2012-08-30 | Permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103683585A true CN103683585A (en) | 2014-03-26 |
Family
ID=50320213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210316614.1A Pending CN103683585A (en) | 2012-08-30 | 2012-08-30 | Permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103683585A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200962543Y (en) * | 2006-10-16 | 2007-10-17 | 广东威灵电机制造有限公司 | A permanent magnetic rotor for the electromotor |
| CN101083411A (en) * | 2006-05-30 | 2007-12-05 | 比亚迪股份有限公司 | Permanent-magnetic electric machine rotor magnet steel fixing structure |
| CN101577454A (en) * | 2009-03-19 | 2009-11-11 | 包头天山电机有限公司 | Three-phase water-cooling permanent magnet synchronous motor |
| CN201682337U (en) * | 2010-04-23 | 2010-12-22 | 佛山市合普电梯部件有限公司 | Permanent-magnet rotor of outer rotor type dragging machine |
| CN201887636U (en) * | 2010-12-24 | 2011-06-29 | 汇润机电有限公司 | BLDCM rotor |
| CN201910723U (en) * | 2010-11-22 | 2011-07-27 | 重庆红宇精密工业有限责任公司 | Rotor sheet for servo permanent magnet synchronous motor |
| CN102522840A (en) * | 2011-12-14 | 2012-06-27 | 大连钰霖电机有限公司 | Permanent-magnet motor rotor |
-
2012
- 2012-08-30 CN CN201210316614.1A patent/CN103683585A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083411A (en) * | 2006-05-30 | 2007-12-05 | 比亚迪股份有限公司 | Permanent-magnetic electric machine rotor magnet steel fixing structure |
| CN200962543Y (en) * | 2006-10-16 | 2007-10-17 | 广东威灵电机制造有限公司 | A permanent magnetic rotor for the electromotor |
| CN101577454A (en) * | 2009-03-19 | 2009-11-11 | 包头天山电机有限公司 | Three-phase water-cooling permanent magnet synchronous motor |
| CN201682337U (en) * | 2010-04-23 | 2010-12-22 | 佛山市合普电梯部件有限公司 | Permanent-magnet rotor of outer rotor type dragging machine |
| CN201910723U (en) * | 2010-11-22 | 2011-07-27 | 重庆红宇精密工业有限责任公司 | Rotor sheet for servo permanent magnet synchronous motor |
| CN201887636U (en) * | 2010-12-24 | 2011-06-29 | 汇润机电有限公司 | BLDCM rotor |
| CN102522840A (en) * | 2011-12-14 | 2012-06-27 | 大连钰霖电机有限公司 | Permanent-magnet motor rotor |
Non-Patent Citations (1)
| Title |
|---|
| 阎治安: "《电机学(第2版)》", 31 August 2006, 西安交通大学出版社 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |
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| RJ01 | Rejection of invention patent application after publication |