CN106505767A - There is the surface-mount type speed permanent magnet synchronous motor rotor of stacked metal pole piece spacing - Google Patents
There is the surface-mount type speed permanent magnet synchronous motor rotor of stacked metal pole piece spacing Download PDFInfo
- Publication number
- CN106505767A CN106505767A CN201611115857.3A CN201611115857A CN106505767A CN 106505767 A CN106505767 A CN 106505767A CN 201611115857 A CN201611115857 A CN 201611115857A CN 106505767 A CN106505767 A CN 106505767A
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- China
- Prior art keywords
- permanent magnet
- pole piece
- piece spacing
- stacked metal
- metal pole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/04—Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
There is the surface-mount type speed permanent magnet synchronous motor rotor of stacked metal pole piece spacing, belong to high speed rotor of motor technical field.The present invention is filled using the insulant such as epoxy resin pole piece spacing between magnetic pole for solving speed permanent magnet synchronous motor rotor, when motor runs up, carbon fibre composite sheath can be caused to damage, or the high temperature loss of excitation problem for causing permanent magnet using metal pole piece spacing.Its rotor core is sleeved in rotating shaft, arranges permanent magnet, arrange stacked metal pole piece spacing between the adjacent pole that permanent magnet is formed on rotor core；Both sides end face in permanent magnet and stacked metal pole piece spacing arranges pole end-plate, is provided with sheath on the outer round surface on the face of cylinder being collectively forming by permanent magnet, stacked metal pole piece spacing and pole end-plate；Stacked metal pole piece spacing by multiple not magnetic conductive metal laminations extend axially through between fill epoxy resin be overrided to form.The present invention is used as a kind of speed permanent magnet synchronous motor rotor.
Description
Technical field
The present invention relates to the surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing, belongs at a high speed
Rotor technical field.
Background technology
Surface-mount type high-speed permanent magnetic synchronous motor, due to transmission efficiency, big power density, simple structure and mechanical strength
Height, is extensively favored in high-speed electric expreess locomotive field.
Permanent magnet material comprcssive strength is big, and tensile strength is limited, for avoiding the effect of high speed centrifugation power from causing durface mounted permanent magnet electricity
The permanent magnet of machine rotor is damaged, and generally installs non-magnetic sheath in permanent magnetism external surface, is applied pretightning force to permanent magnet, is entered
Row protection.
Carbon fibre composite due to high intensity, almost non-conductive and non-magnetic characteristic, be used as surface-mount type high
The sheath material of fast magneto.This carbon fibre composite sheath, compares with existing alloy steel sheath, not only effectively drops
Low thickness, moreover it is possible to improve the mechanical strength of rotor, and the eddy-current loss very little for producing.But, carbon fibre composite sheath
There is the defect of its own：First, its bending resistance is poor, for rotor structure of the pole embrace less than 1, in pole edge
Easily there is sheath fibrous fracture in place；Secondly, its heat conductivility is poor, and the loss of the high-frequency electromagnetic of high speed permanent magnet motor rotor is prominent
Go out, windage loss is big, due to not having effectively supporting cooling structure, sheath will be difficult for the radiating for further resulting in rotor；
Temperature of rotor is too high, and the high temperature of permanent magnet material can be caused to demagnetize.It is high in surface-mount type that this all limits carbon fibre composite sheath
Application on fast permagnetic synchronous motor.
Metal material has the mechanical property close with permanent magnet material, and solid metal material is made metal pole piece spacing
It is arranged between adjacent pole and can solve the problem that carbon fiber sheath stress and the problem that ruptures by bending.But it is good due to metal material
Good electric conductivity, in the presence of high-frequency alternating electromagnetic field, can produce larger extra electromagnetic consumable, and the radiating for increasing rotor is difficult
Degree, this causes to make pole piece spacing material using metal material.In order to be unlikely to the electromagnetic consumable for additionally increasing rotor, people
It is filled between magnetic pole using insulant such as epoxy resin, to be collectively forming the same face of cylinder with permanent magnet, to reducing carbon
The risk that fiber jacket ruptures because of stress by bending, improves rotor strength.But the mechanicalness of the insulant such as epoxy resin
Can differ totally different with permanent magnet material, when rotor rotates at a high speed, the insulant such as epoxy resin pole piece spacing is produced with permanent magnet
Strain difference is larger, and the bending stress problem for being subject to carbon fiber sheath is still very prominent.Also, as epoxy resin etc. insulate
The heat conductivility of material is very poor, makes permanent magnet loss be transferred to end plate by its contact surface with end plate, and with sheath
Contact surface is transferred to sheath, is finally shed by rotor tip and air gap, this not smooth rotor radiating mode, causes rotor temperature
Rise very high.
Content of the invention
The invention aims to solving speed permanent magnet synchronous motor rotor between magnetic pole using insulation materials such as epoxy resin
Material pole piece spacing is filled, and when motor runs up, carbon fibre composite sheath can be caused to damage, or adopt metal
Cause the high temperature loss of excitation problem of permanent magnet in pole piece spacing, there is provided a kind of surface-mount type with stacked metal pole piece spacing is at a high speed
Permanent-magnetic synchronous motor rotor.
Surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing of the present invention, it include turning
Axle, rotor core, permanent magnet, pole end-plate and sheath, it also include stacked metal pole piece spacing,
Rotor core is sleeved in rotating shaft, arranges permanent magnet on the outer round surface of rotor core, and it is adjacent that permanent magnet is formed
Stacked metal pole piece spacing is set between magnetic pole；Both sides end face in permanent magnet and stacked metal pole piece spacing arranges magnetic pole
Pressing plate, is provided with the outer round surface on the face of cylinder being collectively forming by permanent magnet, stacked metal pole piece spacing and pole end-plate
Sheath；
Stacked metal pole piece spacing is overrided to form vertically by multiple not magnetic conductive metal laminations, and adjacent not magnetic conductive metal is folded
Filling epoxy resin between piece.
Advantages of the present invention：Stacked metal pole piece spacing of the present invention has the thermal conductive resin of metal, while
As sheet metal lamination is formed by epoxy bond, the insulation between adjacent metal lamination is this ensure that so as in height
Under frequency alternating electromagnetism field action, electromagnetic consumable is nearly free from.
The rotor is placed between adjacent pole using stacked metal pole piece spacing, stacked metallic magnetic interpolar
Every being overrided to form using not magnetic conductive metal lamination vertically, it is nearly free from electromagnetic consumable in the running of rotor, it
There is the thermal conductive resin of metal again simultaneously, the eddy-current loss in permanent magnet can be effectively conducted to rotor by pole piece spacing
Sheath, in pole end-plate, then shed by motor gas-gap, end.Stacked metal pole piece spacing used in the present invention,
Employ metal material in material, this broken the metal thought in conventional art means as larger electromagnetic consumable can be produced and
The situation used in pole piece spacing is abandoned, also, it both make use of the heat conductivity of metal material well, increase permanent magnet
The sinking path of loss, effectively reduces permanent magnet temperature rise；Make use of the characteristic of not magnetic conductive metal lamination again, be nearly free from electromagnetism
Loss, thus, reduces the risk that permanent magnet occurs high temperature irreversible demagnetization on the whole.
The stacked metal pole piece spacing that the present invention is adopted, can reduce the bending stress of carbon fiber sheath, while not increasing
Plus the extra electromagnetic consumable of rotor, the sinking path of permanent magnet is also effectively increased, reduces permanent magnet material temperature rise, to the type electricity
The development of machine is significant.
Description of the drawings
Fig. 1 is the knot of the surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing of the present invention
Structure schematic diagram；
Fig. 2 is the side structure schematic view of Fig. 1；
Fig. 3 is the single not magnetic conductive metal lamination schematic diagram of stacked metal pole piece spacing；
Fig. 4 is the overall structure diagram for axially laminating the stacked metal pole piece spacing after the completion of solidifying.
Specific embodiment
Specific embodiment one：Present embodiment is described with reference to Fig. 1 to Fig. 4, there is described in present embodiment lamination
The surface-mount type speed permanent magnet synchronous motor rotor of formula metal pole piece spacing, it include rotating shaft 1, rotor core 2, permanent magnet 3, magnetic pole
Pressing plate 4 and sheath 5, it also include stacked metal pole piece spacing 6,
Rotor core 2 is sleeved in rotating shaft 1, arranges permanent magnet 3 on the outer round surface of rotor core 2, and permanent magnet 3 is formed
Stacked metal pole piece spacing 6 is set between adjacent pole；Both sides end face in permanent magnet 3 and stacked metal pole piece spacing 6
Arrange pole end-plate 4, the face of cylinder being collectively forming by permanent magnet 3, stacked metal pole piece spacing 6 and pole end-plate 4 cylindrical
Sheath 5 is provided with surface；
Stacked metal pole piece spacing 6 is overrided to form vertically by multiple not magnetic conductive metal lamination 6-1, adjacent not magnetic conduction gold
Filling epoxy resin between category lamination 6-1.
The outer round surface of permanent magnet 3, stacked metal pole piece spacing 6 and pole end-plate 4 be spliced into jointly one coplanar
The face of cylinder.The effect of pole end-plate 4 is to carry out axial restraint to permanent magnet and pole piece spacing.Pole end-plate internal circular surfaces are sleeved on
In rotating shaft, outer surface is with permanent magnet, pole piece spacing on the same face of cylinder.In the outer of permanent magnet, pole piece spacing and pole end-plate
On the face of cylinder, with the carbon fiber that some tension winding has presoaked epoxy resin, sheath 5 is wound in, permanent magnet is had and is applied in advance
Clamp force is acted on.
The number phase of the magnetic pole fluted, the number of groove is formed with permanent magnet 3 is set on the outer round surface of rotor core 2
Coupling, is fixed for the permanent magnet 3 to form a magnetic pole, the stacked gold of bonding on the boss between adjacent grooves in each groove
Category pole piece spacing 6.Described rotor core 2 is formed by silicon steel plate stacking, and its outer surface can open up shallow port recess, for permanent magnet
Positioning when installation.Permanent magnet 3 and stacked metal pole piece spacing 6 can be bonded in core exterior surface by epoxide-resin glue,
And cause their outer surface to be spliced into jointly a face of cylinder.
The permanent magnet 3 of each magnetic pole is circumferentially made up of multiple permanent magnet segmentations in tile, and according to permanent magnet
Axial length, axial segmentation carried out to which, reduces high frequency eddy current losses.
Not magnetic conductive metal lamination of the not magnetic conductive metal lamination that stacked metal pole piece spacing 6 adopts for thin layer, adjacent folded
Epoxy resin is saturated between piece, to increase the insulation resistance between lamination, by lamellate for institute not magnetic conductive metal lamination axial pressure
The equivalent stacking factor of the stacked metal pole piece spacing 6 formed after solidification is not less than 0.95.
Sheath 5 is entwined by carbon fibre initial rinse epoxy resin.
The stacked metal pole piece spacing 6 of the present invention is formed by epoxy bond by sheet metal lamination, is so protected
The insulation between adjacent metal lamination is demonstrate,proved so as under high-frequency alternating electromagnetic field effect, be nearly free from electromagnetic consumable.It is simultaneously
Maintain metallic magnetic interpolar and be interposed between the advantage for carbon fibre composite sheath being solved by bending in stress problem, improve rotor machine
Tool intensity.
The present invention rotor have higher mechanical strength, by the stacked metal pole piece spacing 6 for proposing first this
Plant metallic laminations structure to be used in rotor of the present invention, its mechanical strength is better than using insulant pole piece spacings such as epoxy resin
Rotor；In the present invention, permanent magnet temperature rise is less than the rotor using insulant pole piece spacings such as epoxy resin simultaneously, and it improves
The reliability of motor, can greatly advance the carbon fibre composite to apply on surface-mount type high-speed permanent magnetic synchronous motor.Compare
In traditional high strength alloy steel sheath motor, carbon fibre composite sheath motor, due to the not magnetic conduction sheath that the present invention is adopted
Thickness can substantially reduce, effectively improve the air gap flux density of rotor, and then improve the power density of motor.Thus,
The present invention is significant for high-speed industrial application.
Claims (4)
1. a kind of surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing, it include rotating shaft (1), turn
Sub- iron core (2), permanent magnet (3), pole end-plate (4) and sheath (5), it is characterised in that it also includes stacked metallic magnetic interpolar
Every (6),
Rotor core (2) is sleeved in rotating shaft (1), arranges permanent magnet (3), permanent magnet (3) on the outer round surface of rotor core (2)
Stacked metal pole piece spacing (6) are set between the adjacent pole of formation；In permanent magnet (3) and stacked metal pole piece spacing
(6) both sides end face arranges pole end-plate (4), by permanent magnet (3), stacked metal pole piece spacing (6) and pole end-plate (4) altogether
Sheath (5) is provided with outer round surface with the face of cylinder for being formed；
Stacked metal pole piece spacing (6) are overrided to form vertically by multiple not magnetic conductive metal laminations (6-1), adjacent not magnetic conduction gold
Filling epoxy resin between category lamination (6-1).
2. the surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing according to claim 1,
Characterized in that, arranging fluted, the magnetic pole that the number of groove is formed with permanent magnet (3) on the outer round surface of rotor core (2)
Number match, be fixed for the permanent magnet (3) to form a magnetic pole in each groove, on the boss between adjacent grooves glue
Connect stacked metal pole piece spacing (6).
3. the surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing according to claim 1,
Characterized in that, the permanent magnet (3) of each magnetic pole is circumferentially made up of multiple permanent magnet segmentations in tile.
4. the surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing according to claim 1,
Characterized in that, sheath (5) is entwined by carbon fibre initial rinse epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115857.3A CN106505767B (en) | 2016-12-07 | 2016-12-07 | Surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115857.3A CN106505767B (en) | 2016-12-07 | 2016-12-07 | Surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106505767A true CN106505767A (en) | 2017-03-15 |
| CN106505767B CN106505767B (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611115857.3A Active CN106505767B (en) | 2016-12-07 | 2016-12-07 | Surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023422A (en) * | 2018-01-23 | 2018-05-11 | 江苏瑞斯曼节能技术有限公司 | P-m rotor, magneto and compressor |
| CN108448852A (en) * | 2018-03-09 | 2018-08-24 | 沈阳工业大学 | A kind of outer rotor high-speed engine using circumferential whole composite permanet magnet structure |
| CN109167448A (en) * | 2018-09-30 | 2019-01-08 | 北京航空航天大学 | A kind of surface-mount type high-speed permanent magnet motor sheath and permanent magnet elastic conjunction structure |
| CN109494955A (en) * | 2018-12-25 | 2019-03-19 | 北京新能源汽车股份有限公司 | surface-mounted synchronous reluctance permanent magnet motor and vehicle |
| CN110476324A (en) * | 2017-03-31 | 2019-11-19 | 日本电产株式会社 | Rotor and motor |
| CN110771011A (en) * | 2017-06-20 | 2020-02-07 | 戴森技术有限公司 | Rotor assembly and method of manufacturing the same |
| 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 |
| CN112350463A (en) * | 2020-12-14 | 2021-02-09 | 哈尔滨理工大学 | Novel permanent magnet synchronous motor structure |
| CN112366845A (en) * | 2020-12-17 | 2021-02-12 | 哈尔滨理工大学 | High-efficiency back-wound winding tooth-groove-free permanent magnet synchronous motor |
| WO2021143163A1 (en) * | 2020-01-13 | 2021-07-22 | 上海盘毂动力科技股份有限公司 | Magnetic steel positioning structure, motor, and installation tooling for magnetic steel positioning structure |
| CN113890215A (en) * | 2021-09-14 | 2022-01-04 | 武汉理工大学 | High-speed amorphous alloy permanent magnet motor |
| CN114709992A (en) * | 2022-03-02 | 2022-07-05 | 华南泵业(赣州)有限公司 | Filling and sealing process for stator and rotor of motor for pump |
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| JP2002272066A (en) * | 2001-03-06 | 2002-09-20 | Mitsubishi Electric Corp | Cylindrical permanent-magnet rotor and manufacturing method therefor |
| CN2681433Y (en) * | 2003-12-03 | 2005-02-23 | 浙江中源电气有限公司 | Servo permanent-magnet motor rotor |
| CN202103502U (en) * | 2011-07-06 | 2012-01-04 | 奉化市溪口名鑫电机科技有限公司 | Brushless motor rotor with sheath |
| CN102598485A (en) * | 2009-09-17 | 2012-07-18 | 西门子公司 | Cooling of an asynchronous rotor |
| CN204334148U (en) * | 2014-12-30 | 2015-05-13 | 中船重工电机科技股份有限公司 | Permanent magnet direct current motor magnet rotor |
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Patent Citations (6)
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| JP2001061243A (en) * | 1999-08-19 | 2001-03-06 | Asmo Co Ltd | Structure of rotor and motor |
| JP2002272066A (en) * | 2001-03-06 | 2002-09-20 | Mitsubishi Electric Corp | Cylindrical permanent-magnet rotor and manufacturing method therefor |
| CN2681433Y (en) * | 2003-12-03 | 2005-02-23 | 浙江中源电气有限公司 | Servo permanent-magnet motor rotor |
| CN102598485A (en) * | 2009-09-17 | 2012-07-18 | 西门子公司 | Cooling of an asynchronous rotor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110476324A (en) * | 2017-03-31 | 2019-11-19 | 日本电产株式会社 | Rotor and motor |
| CN110771011A (en) * | 2017-06-20 | 2020-02-07 | 戴森技术有限公司 | Rotor assembly and method of manufacturing the same |
| CN108023422A (en) * | 2018-01-23 | 2018-05-11 | 江苏瑞斯曼节能技术有限公司 | P-m rotor, magneto and compressor |
| CN108448852A (en) * | 2018-03-09 | 2018-08-24 | 沈阳工业大学 | A kind of outer rotor high-speed engine using circumferential whole composite permanet magnet structure |
| CN108448852B (en) * | 2018-03-09 | 2023-09-15 | 沈阳工业大学 | External rotor high-speed generator adopting circumferential integral composite permanent magnet structure |
| CN109167448A (en) * | 2018-09-30 | 2019-01-08 | 北京航空航天大学 | A kind of surface-mount type high-speed permanent magnet motor sheath and permanent magnet elastic conjunction structure |
| CN109494955A (en) * | 2018-12-25 | 2019-03-19 | 北京新能源汽车股份有限公司 | surface-mounted synchronous reluctance permanent magnet motor and vehicle |
| WO2021143163A1 (en) * | 2020-01-13 | 2021-07-22 | 上海盘毂动力科技股份有限公司 | Magnetic steel positioning structure, motor, and installation tooling for magnetic steel positioning structure |
| 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 |
| CN112350463A (en) * | 2020-12-14 | 2021-02-09 | 哈尔滨理工大学 | Novel permanent magnet synchronous motor structure |
| CN112366845A (en) * | 2020-12-17 | 2021-02-12 | 哈尔滨理工大学 | High-efficiency back-wound winding tooth-groove-free permanent magnet synchronous motor |
| CN113890215A (en) * | 2021-09-14 | 2022-01-04 | 武汉理工大学 | High-speed amorphous alloy permanent magnet motor |
| CN114709992A (en) * | 2022-03-02 | 2022-07-05 | 华南泵业(赣州)有限公司 | Filling and sealing process for stator and rotor of motor for pump |
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| CN106505767B (en) | 2019-03-15 |
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