CN105245047B - A kind of unit field structure of permanent magnet machine rotor - Google Patents
A kind of unit field structure of permanent magnet machine rotor Download PDFInfo
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- CN105245047B CN105245047B CN201510738230.2A CN201510738230A CN105245047B CN 105245047 B CN105245047 B CN 105245047B CN 201510738230 A CN201510738230 A CN 201510738230A CN 105245047 B CN105245047 B CN 105245047B
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Abstract
The invention discloses a kind of unit field structure of permanent magnet machine rotor, including rotating shaft and rotor core, rotor core is divided into multiple independent unit magnetic poles vertically, unit magnetic pole carries out axial restraint and sealing using core ventilation pressing plate to magnet steel, complete to be attached by ventilation channel plate and vent segment between the fixation of pole core, unit magnetic pole by stainless steel rivet.The present invention is with structure is novel, performance is good, the convenient advantage of technique, it is adaptable to the high-speed rotary motor of high power density.
Description
Technical field
It is especially a kind of to be applied to high rotating speed, high salt fog bar the present invention relates to a kind of rotor core structure of magneto
The permanent magnet built-in radial ventilated type rotor structure for permanent magnet motor pattern of part, belongs to magneto technical field.
Background technology
In high speed internal rotor permanent-magnetic motor, permanent magnet is typically mounted in rotor core.Permanent magnet and rotor core it
Between can have certain space, the presence in these spaces can influence the firmness that permanent magnet is installed, therefore common technique is
Sealing resin is irrigated in these spaces.If permanent magnet is directly and air contact in addition, surface is easily corroded, and influences magnetic
Energy.Accordingly, it would be desirable to carry out secondary protection to the surface of permanent magnet.
For there is the magneto of Radial ventilation duct, situation is more complicated.Conventional interior permanent magnet machines, are carried out first
Iron core laminated, then by iron core sleeve in rotating shaft, then rotor core two ends are sealed by mounting magnetic steel afterwards, are filled simultaneously
Note sealing resin can just complete the secondary protection to magnet steel.For there is the electric machine structure of Radial ventilation duct, first have to complete iron
The installation laminated with magnet steel of core, its is secondary to magnet steel progress axial restraint, and the 3rd will realize the sealing of magnet steel, finally also examine
Consider the manufacturability installed, so can just take into account magnet steel reliability and sealing.
The content of the invention
It is an object of the invention to provide a kind of unit field structure of permanent magnet machine rotor, using rotor unit magnetic pole
Structural shape, feature is that magnet steel installation and removal are convenient, not easy damaged, good airproof performance, and unit magnetic pole is easy to production, is radially logical
The rotor structure of the magneto of wind mode provides a kind of design method.
Technical scheme is as follows：
A kind of unit field structure of permanent magnet machine rotor, including rotating shaft and rotor core；The rotor core is vertically
It is divided into multiple independent unit magnetic poles, each unit magnetic pole is fixed in rotating shaft；Radial ventilation is formed between adjacent unit magnetic pole
Groove.
Further, the unit magnetic pole is divided into the first species unit magnetic pole and second species unit magnetic pole；
First species unit magnetic pole by rotor punching, core ventilation pressing plate, ventilation channel plate, vent segment, stainless steel rivet,
Magnet steel, thermal expansivity glass felt and elastic tie assemble；Thermal expansivity glass felt is bonded in the shaft end both sides of magnet steel,
In magnet steel peripheral surface brush configuration glue, the groove that magnet steel is placed in the rotor punching laminated, elastic tie is penetrated, is gone forward side by side
Row epoxy sealing；Core ventilation pressing plate and ventilation channel plate, rotor punching, iron core are placed respectively at the rotor punching two ends laminated
Ventilation pressing plate and the yoke portion of ventilation channel plate and teeth portion have circumferentially been evenly distributed through hole, with stainless steel rivet by rotor punching,
Core ventilation pressing plate and ventilation channel plate are fixed；Vent segment is welded on ventilation channel plate, and its position covers the installation site of magnet steel；
Second species unit magnetic pole is by rotor punching, core ventilation pressing plate, stainless steel rivet, magnet steel, thermal expansivity glass
Felt and elastic tie assemble；Thermal expansivity glass felt is bonded in the shaft end both sides of magnet steel, in magnet steel peripheral surface brush
In structure glue, the groove that magnet steel is placed in the rotor punching laminated, elastic tie is penetrated, and carry out epoxy sealing；Folded
Core ventilation pressing plate, rotor punching and the yoke portion of core ventilation pressing plate and teeth portion edge week are placed respectively in the rotor punching two ends pressed
To through hole has been evenly distributed, rotor punching and core ventilation pressing plate are fixed with stainless steel rivet；
First species unit magnetic pole has multiple, and second species unit magnetic pole only has one；Adjacent first species unit magnetic
Between pole, led to by the vent segment of one of them the first species unit magnetic pole with the iron core of another the first species unit magnetic pole
Blast plate is in contact；Between first species unit magnetic pole and second species unit magnetic pole, pass through the logical of the first species unit magnetic pole
Wind groove piece is in contact with the core ventilation pressing plate of second species unit magnetic pole.
Further, mounting means of the unit magnetic pole in rotating shaft is：First species rotor-end is installed in rotating shaft
Portion's pole end-plate, axially position is carried out by the boss in rotating shaft to the first species rotor tip pole end-plate；Pacify in rotating shaft
Multilayer the first species unit magnetic pole is filled, makes the first species unit magnetic pole of the first species rotor tip pole end-plate and first layer
Core ventilation pressing plate is contacted, vent segment and adjacent layer the first species unit magnetic pole of remaining each the first species of layer unit magnetic pole
Core ventilation pressing plate is in contact；Then one layer of second species unit magnetic pole be installed in rotating shaft, makes second species unit magnetic pole
Core ventilation pressing plate is in contact with the vent segment of adjacent layer the first species unit magnetic pole；Laminated with aerostatic press；In rotating shaft
Upper installation second species rotor tip pole end-plate, makes second species rotor tip pole end-plate and second species unit magnetic pole
Core ventilation pressing plate is contacted, and arc key is welded on second species rotor tip pole end-plate；The first species rotor tip
The difference of pole end-plate and second species rotor tip pole end-plate is there is footpath on the first species rotor tip pole end-plate
To air vent, do not have radial air openings on second species rotor tip pole end-plate.
The method have the benefit that：
1st, the unit field structure of permanent magnet machine rotor of the invention, unit magnetic pole independently makes, and easy to operate, improves
The reliability and efficiency of production.
2nd, the unit field structure of permanent magnet machine rotor of the invention, magnet steel axial end portion passes through fixed thermal expansivity glass
Felt, it is to avoid core ventilation pressing plate and ventilation channel plate are directly squeezed on magnet steel, while after embedding, enhancing magnet steel axially fixed
Position and sealing.
3rd, the unit field structure of permanent magnet machine rotor of the invention, using stainless steel rivet, improves unit magnetic pole system
The manufacturability of work, it is therefore prevented that tooth rises, it is to avoid eddy-current loss.
4th, the unit field structure of permanent magnet machine rotor of the invention, unit magnetic pole is laminated after being arranged in rotating shaft,
Axial restraint is carried out by ventilation channel plate between each unit magnetic pole, the overall axial restraint effect of rotor core is served.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the unit field structure schematic diagram of the present invention.
Fig. 3 is the rotor punching structure schematic diagram of the present invention.
Fig. 4 is the ventilation channel plate structural representation of the present invention.
Fig. 5 is the first species rotor tip pole end-plate structural representation of the present invention.
Fig. 6 is the second species rotor tip pole end-plate structural representation of the present invention.
Description of reference numerals：1st, rotating shaft；2nd, unit magnetic pole；3rd, rotor punching；4th, core ventilation pressing plate；5th, ventilation channel plate；
6th, vent segment；7th, stainless steel rivet；8th, magnet steel；9th, thermal expansivity glass felt；10th, elastic tie；11st, the first species rotor
End pole pressing plate；12nd, second species rotor tip pole end-plate；13rd, arc key.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings.
As shown in figure 1, the unit field structure of the permanent magnet machine rotor of the present invention, mainly includes rotating shaft 1 and rotor core
Two parts.Rotor core is divided into several unit magnetic poles 2 in the axial direction, and each unit magnetic pole 2 is separately fabricated, is then attached to and turns
On axle 1.Radial ventilation groove is formed between adjacent unit magnetic pole 2.
As shown in Fig. 2 being the structure of unit magnetic pole 2.Each unit magnetic pole 2 is an independent rotor core, convenient
Batch production, while easy to assembly.The composition of unit magnetic pole 2 includes rotor punching 3, core ventilation pressing plate 4, ventilation channel plate 5 (can
Choosing), vent segment 6 (optional), stainless steel rivet 7, magnet steel 8, thermal expansivity glass felt 9 and elastic tie 10.
Unit magnetic pole 2 is overrided to form by rotor punching 3, and the one end of unit magnetic pole 2 is core ventilation pressing plate 4, and the other end is iron
Core ventilation pressing plate 4 or ventilation channel plate 5.Core ventilation pressing plate 4 is identical with the structure of ventilation channel plate 5, and difference is ventilation channel plate 5
On be welded with vent segment 6.The yoke portion of rotor punching 3 (referring to Fig. 3), core ventilation pressing plate 4 and ventilation channel plate 5 (referring to Fig. 4)
Through hole is circumferentially evenly distributed with teeth portion, for riveting stainless steel rivet 7, to ensure that laminating for the iron core of unit magnetic pole 2 be
Number, it is to avoid tooth rises, while playing the protective action of axial restraint and sealing magnet steel 8.Core ventilation pressing plate 4, ventilation channel plate 5 and riveting
Nail 7 selects stainless steel material, so as to avoid the generation of leakage field phenomenon.The axial length of the iron core of unit magnetic pole 2 is slightly larger than magnetic
The length of steel 8, it is ensured that iron core has certain small―gap suture in the axial direction with magnet steel 8 after staking, in the axial both ends of the surface of magnet steel 8
Cover one group of thermal expansivity glass felt 9.The both sides of magnet steel 8 are installed with elastic tie 10, the inside encapsulated epoxy resin of magnet steel 8.
Unit magnetic pole 2 during fabrication, is first laminated the through hole alignment of core ventilation pressing plate 4 and rotor punching 3.Install
Before magnet steel 8, thermal expansivity glass felt 9 is bonded in the shaft end both sides of magnet steel 8, thermal expansivity glass felt 9 can root in assembling
To be compressed or expansion is needed according to axial fitted position；In the peripheral surface brush configuration glue of magnet steel 8, then 8 one pieces of blocks of magnet steel are laid
In the above-mentioned iron core slot laminated, while penetrating elastic tie 10, epoxy sealing is carried out afterwards, and then opposite side is installed
Ventilation channel plate 5 or core ventilation pressing plate 4, it is ensured that through hole aligns.When opposite side install be ventilation channel plate 5 when, constitute the first
Class unit magnetic pole；When opposite side install be core ventilation pressing plate 4 when, constitute second species unit magnetic pole.Finally by stainless
Steel rivet 7 is riveted rotor punching 3 with core ventilation pressing plate 4, ventilation channel plate 5.
Unit magnetic pole 2 is after encapsulated epoxy resin, and thermal expansivity glass felt 9 solidifies, and plays the limitation axial displacement of magnet steel 8
Effect；After elastic tie 10 solidifies, the circumferentially displaced effect of limitation magnet steel 8 is played；Utilize core ventilation pressing plate 4 and/or logical
Wind groove plate 5 realizes the sealing of magnet steel 8.
As shown in figure 4, for the first species unit magnetic pole, need on ventilation channel plate 5 spot welding vent segment 6, vent segment 6
Position to cover the installation site of magnet steel 8, to strengthen the axial direction protection to magnet steel 8, the tooth for reducing iron core rises problem.
Referring to Fig. 1, mounting means of the unit magnetic pole 2 in rotating shaft 1 is：First species rotor as shown in Figure 5 is first installed
End pole pressing plate 11, axially position is carried out by the boss in rotating shaft 1 to the first species rotor tip pole end-plate 11；Then
The unit magnetic pole 2 (being the first species unit magnetic pole) of first layer is installed, ensures the core ventilation pressing plate 4 of unit magnetic pole 2 during installation
Side is contacted with above-mentioned first species rotor tip pole end-plate 11；Then installation unit magnetic pole 2 (is the first species unit successively
Magnetic pole), it is ensured that the core ventilation pressing plate 4 of one group of unit magnetic pole 2 and the ventilation slot on the ventilation channel plate 5 of another group of unit magnetic pole 2
Piece 6 is in contact, and passes through the axial restraint of vent segment 6 on ventilation channel plate 5 between adjacent cells magnetic pole 2；The unit of last layer
The two ends of magnetic pole 2 are core ventilation pressing plate 4 (being second species unit magnetic pole).After installation, laminated with aerostatic press, so
First species rotor tip pole end-plate 12 as shown in Figure 6 is installed afterwards, and ensures that the iron core of the unit magnetic pole 2 of last layer leads to
The side of blast plate 4 is contacted with above-mentioned second species rotor tip pole end-plate 12；Finally, arc key 13 is welded on into second species to turn
On sub- end pole pressing plate 12, with fixed rotor iron core.
First species rotor tip pole end-plate 11 is different with the structure of second species rotor tip pole end-plate 12.As schemed
Shown in 5, there are radial air openings on the first species rotor tip pole end-plate 11；As shown in fig. 6, second species rotor tip magnetic
Do not have radial air openings on extreme pressure plate 12.
Interior wind path is divided into two tunnels in the presence of fan, in the axial direction, all the way by rotor axial air vent, into rotor
Radial ventilation duct；Pass through rotor air gap all the way, into stator Radial ventilation duct.
Above-described is only the preferred embodiment of the present invention, and the invention is not restricted to above example.It is appreciated that this
The oher improvements and changes that art personnel directly export or associated without departing from the basic idea of the present invention,
It is considered as being included within protection scope of the present invention.
Claims (2)
1. a kind of unit field structure of permanent magnet machine rotor, it is characterised in that：Including rotating shaft and rotor core；The rotor iron
Core is divided into multiple independent unit magnetic poles vertically, and each unit magnetic pole is fixed in rotating shaft；Formed between adjacent unit magnetic pole
Radial ventilation groove；The unit magnetic pole is divided into the first species unit magnetic pole and second species unit magnetic pole；
First species unit magnetic pole is by rotor punching, core ventilation pressing plate, ventilation channel plate, vent segment, stainless steel rivet, magnetic
Steel, thermal expansivity glass felt and elastic tie assemble；Thermal expansivity glass felt is bonded in the shaft end both sides of magnet steel,
In magnet steel peripheral surface brush configuration glue, the groove that magnet steel is placed in the rotor punching laminated, elastic tie is penetrated, and carry out
Epoxy sealing；Place core ventilation pressing plate and ventilation channel plate respectively at the rotor punching two ends laminated, rotor punching, iron core lead to
Blast plate and the yoke portion of ventilation channel plate and teeth portion have circumferentially been evenly distributed through hole, with stainless steel rivet by rotor punching, iron
Core ventilation pressing plate and ventilation channel plate are fixed；Vent segment is welded on ventilation channel plate, and its position covers the installation site of magnet steel；
Second species unit magnetic pole by rotor punching, core ventilation pressing plate, stainless steel rivet, magnet steel, thermal expansivity glass felt and
Elastic tie assembles；Thermal expansivity glass felt is bonded in the shaft end both sides of magnet steel, in magnet steel peripheral surface brush configuration
In glue, the groove that magnet steel is placed in the rotor punching laminated, elastic tie is penetrated, and carry out epoxy sealing；Laminating
Rotor punching two ends place core ventilation pressing plate respectively, rotor punching and the yoke portion of core ventilation pressing plate and teeth portion are circumferentially equal
Through hole is distributed with evenly, rotor punching and core ventilation pressing plate is fixed with stainless steel rivet；
First species unit magnetic pole has multiple, and second species unit magnetic pole only has one；Adjacent first species unit magnetic pole it
Between, pass through the core ventilation pressure of the vent segment and another the first species unit magnetic pole of one of them the first species unit magnetic pole
Plate is in contact；Between first species unit magnetic pole and second species unit magnetic pole, pass through the ventilation slot of the first species unit magnetic pole
Piece is in contact with the core ventilation pressing plate of second species unit magnetic pole.
2. the unit field structure of permanent magnet machine rotor according to claim 1, it is characterised in that the unit magnetic pole exists
Mounting means in rotating shaft is：First species rotor tip pole end-plate is installed in rotating shaft, by the boss in rotating shaft to
One species rotor tip pole end-plate carries out axially position；Multilayer the first species unit magnetic pole is installed in rotating shaft, makes the first
Class rotor tip pole end-plate is contacted with the core ventilation pressing plate of the first species unit magnetic pole of first layer, remaining each layer the first
The vent segment of class unit magnetic pole is in contact with the core ventilation pressing plate of adjacent layer the first species unit magnetic pole；Then in rotating shaft
One layer of second species unit magnetic pole is installed, makes the core ventilation pressing plate and adjacent layer the first species unit of second species unit magnetic pole
The vent segment of magnetic pole is in contact；Laminated with aerostatic press；Second species rotor tip pole end-plate is installed in rotating shaft, made
Second species rotor tip pole end-plate is contacted with the core ventilation pressing plate of second species unit magnetic pole, and arc key is welded on into second
On species rotor tip pole end-plate；The first species rotor tip pole end-plate and second species rotor tip pole end-plate
Difference be, on the first species rotor tip pole end-plate have radial air openings, second species rotor tip pole end-plate
It is upper not have radial air openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738230.2A CN105245047B (en) | 2015-11-03 | 2015-11-03 | A kind of unit field structure of permanent magnet machine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510738230.2A CN105245047B (en) | 2015-11-03 | 2015-11-03 | A kind of unit field structure of permanent magnet machine rotor |
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| Publication Number | Publication Date |
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| CN105245047A CN105245047A (en) | 2016-01-13 |
| CN105245047B true CN105245047B (en) | 2017-10-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105656231B (en) * | 2016-03-10 | 2019-01-25 | 重庆智仁发电设备有限责任公司 | Radiate rotor with non-salient poles in a kind of |
| CN107623398A (en) * | 2016-07-15 | 2018-01-23 | 天津瑞林迪金属制品有限公司 | Rotor cover plate |
| CN109742913A (en) * | 2018-12-20 | 2019-05-10 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of permanent magnetism magnetic pole fixing means and rotor |
| CN111987828A (en) * | 2020-08-21 | 2020-11-24 | 山东齐鲁电机制造有限公司 | Permanent magnet auxiliary exciter for turbonator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2878860B2 (en) * | 1991-03-20 | 1999-04-05 | 株式会社東芝 | Cage rotor |
| JP4163953B2 (en) * | 2000-12-22 | 2008-10-08 | 株式会社ミツバ | Rotor magnet holding structure |
| JP2005354806A (en) * | 2004-06-10 | 2005-12-22 | Toyota Motor Corp | Rotor for electric motor and its manufacturing method |
| CN102005838B (en) * | 2010-10-20 | 2012-11-14 | 东元总合科技（杭州）有限公司 | High-power permanent-magnet motor rotor, installation method of rotor and method for magnetizing rotor permanent magnet |
| CN201868965U (en) * | 2010-11-30 | 2011-06-15 | 东方电气集团东方电机有限公司 | Megawatt-level permanent magnetic generator |
| CN102611228A (en) * | 2012-03-20 | 2012-07-25 | 中科盛创（青岛）电气有限公司 | Magnetic steel end fastening structure of permanent magnet motor rotor |
| CN205081597U (en) * | 2015-11-03 | 2016-03-09 | 中科盛创（青岛）电气股份有限公司 | Unit field structure of permanent -magnet machine rotor |
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Effective date of registration: 20230420 Address after: 266000 1-23, D5 floor, LANWAN Pioneer Park, No.1 Jinhui Road, high tech Zone, Qingdao, Shandong Province Patentee after: Vision power Ltd. Address before: No. 18 Xinye Road, Qingdao, Shandong 266100 Patentee before: SINOPAL (QINGDAO) ELECTRIC CO.,LTD. |