CN106505767B - Surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing - Google Patents
Surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing Download PDFInfo
- Publication number
- CN106505767B CN106505767B CN201611115857.3A CN201611115857A CN106505767B CN 106505767 B CN106505767 B CN 106505767B CN 201611115857 A CN201611115857 A CN 201611115857A CN 106505767 B CN106505767 B CN 106505767B
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- permanent magnet
- pole piece
- piece spacing
- stacked metal
- metal pole
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- 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
Surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing, belongs to high speed rotor of motor technical field.The present invention is to solve speed permanent magnet synchronous motor rotor to be filled between magnetic pole using insulating materials pole piece spacings such as epoxy resin, when motor runs at high speed, it will cause the damage of carbon fibre composite sheath, or cause the high temperature loss of excitation problem of permanent magnet using metal pole piece spacing.Its rotor core is sleeved in shaft, and permanent magnet is arranged on rotor core, stacked metal pole piece spacing is arranged between the adjacent pole that permanent magnet is formed；Pole end-plate is arranged in both sides of the face in permanent magnet and stacked metal pole piece spacing, is provided with sheath on the outer round surface on the cylindrical surface being collectively formed by permanent magnet, stacked metal pole piece spacing and pole end-plate；Stacked metal pole piece spacing by multiple non-magnetic metallic laminations extend axially through between the epoxy resin filled be overrided to form.The present invention is 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 rotors with stacked metal pole piece spacing, belong to high speed
Rotor technical field.
Background technique
Surface-mount type high-speed permanent magnetic synchronous motor, since transmission efficiency is high, power density is big, structure is simple and mechanical strength
Height is favored extensively in high-speed motor field.
Permanent-magnet material compression strength is big, and tensile strength is limited, to avoid the effect of high speed centrifugation power from causing durface mounted permanent magnet electric
The permanent magnet of machine rotor damages, and usually installs non-magnetic sheath in permanent magnetism external surface, applies pretightning force to permanent magnet, into
Row protection.
Carbon fibre composite is due to being used as surface-mount type height with high-intensitive, almost non-conductive and non-magnetic characteristic
The sheath material of fast magneto.This carbon fibre composite sheath is compared with existing alloy steel sheath, is not only effectively dropped
Low thickness, moreover it is possible to improve the mechanical strength of rotor, and the eddy-current loss very little generated.But carbon fibre composite sheath
Have the defects that its own: firstly, its bending resistance is poor, the rotor structure for pole embrace less than 1, in pole edge
Sheath fibrous fracture easily occurs for place；Secondly, its heating conduction is poor, and the loss of the high-frequency electromagnetic of high speed permanent magnet motor rotor is prominent
Out, windage loss is big, since effectively matched cooling structure, sheath be not difficult by the heat dissipation for further resulting in rotor；
Temperature of rotor is excessively high, will cause the high temperature demagnetization of permanent-magnet material.This all limits carbon fibre composite sheath in surface-mount type height
Application on fast permanent magnet synchronous motor.
Metal material have with mechanical property similar in permanent-magnet material, solid metal material is made into metal pole piece spacing
Setting be able to solve between adjacent pole carbon fiber sheath by bending stress and the problem of be broken.But it is good due to metal material
Good electric conductivity can generate biggish additional electromagnetic consumable under the action of high frequency alternating electromagnetic field, and the heat dissipation for increasing rotor is difficult
Degree, this makes that pole piece spacing material should not be made using metal material.In order not to as the additional electromagnetic consumable for increasing rotor, people
It is filled between magnetic pole using insulating materials such as epoxy resin, same cylindrical surface is collectively formed with permanent magnet, to reduce carbon
The risk that fiber jacket is broken due to stress by bending improves rotor strength.But the mechanicalness of the insulating materials such as epoxy resin
It can differ totally different with permanent-magnet material, when rotor high speed rotation, what the insulating materials such as epoxy resin pole piece spacing and permanent magnet generated
Strain difference is larger, and the bending stress problem for being subject to carbon fiber sheath is still very prominent.Also, since epoxy resin etc. insulate
The heating conduction of material is very poor, makes permanent magnet loss that can only be transferred to end plate by the contact surface of itself and end plate, and with sheath
Contact surface is transferred to sheath, is finally shed by rotor tip and air gap, and this not smooth rotor radiating mode leads to rotor temperature
It rises very high.
Summary of the invention
The invention aims to solve 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 at high speed, will cause the damage of carbon fibre composite sheath, or use metal
The high temperature loss of excitation problem of permanent magnet is caused in pole piece spacing, provides a kind of surface-mount type high speed with stacked metal pole piece spacing
Permanent-magnetic synchronous motor rotor.
Surface-mount type speed permanent magnet synchronous motor rotor of the present invention with stacked metal pole piece spacing, it includes turning
Axis, rotor core, permanent magnet, pole end-plate and sheath, it further includes stacked metal pole piece spacing,
Rotor core is sleeved in shaft, and permanent magnet is arranged on the outer round surface of rotor core, and permanent magnet is formed adjacent
Stacked metal pole piece spacing is set between magnetic pole；Magnetic pole is arranged in both sides of the face in permanent magnet and stacked metal pole piece spacing
Pressing plate is provided on the outer round surface on the cylindrical surface being collectively formed by permanent magnet, stacked metal pole piece spacing and pole end-plate
Sheath；
Stacked metal pole piece spacing is overrided to form by multiple non-magnetic metallic laminations along axial direction, and adjacent non-magnetic metal is folded
Epoxy resin is filled between piece.
Advantages of the present invention: stacked metal pole piece spacing of the present invention has the thermal conductive resin of metal, simultaneously
Since sheet metal lamination is bonded by epoxy resin, this ensure that the insulation between adjacent metal lamination, makes it in height
Under frequency alternating electromagnetism field action, it is nearly free from electromagnetic consumable.
The rotor is placed between adjacent pole using stacked metal pole piece spacing, stacked metallic magnetic interpolar
Every being overrided to form using non-magnetic metallic laminations along axial direction, it is nearly free from electromagnetic consumable in the operational process of rotor, it
There is the thermal conductive resin of metal simultaneously again, the eddy-current loss in permanent magnet can be effectively conducted by pole piece spacing to rotor
Sheath, in pole end-plate, then shed by motor gas-gap, end.Stacked metal pole piece spacing used in the present invention,
Metal material is used in material, this broken the metal thought in traditional technology means due to can generate larger electromagnetic consumable and
The situation used in pole piece spacing is abandoned, also, the thermal conductivity of metal material, Lai Zengjia permanent magnet had both been utilized in it well
Permanent magnet temperature rise is effectively reduced in the sinking path of loss；The characteristic of non-magnetic metallic laminations is utilized again, is nearly free from electromagnetism
Loss reduces the risk that high temperature irreversible demagnetization occurs for permanent magnet on the whole as a result,.
The stacked metal pole piece spacing that the present invention uses, can reduce the bending stress of carbon fiber sheath, while not increasing
The additional electromagnetic consumable for adding rotor also effectively increases the sinking path of permanent magnet, reduces permanent-magnet material temperature rise, to the type electricity
The development of machine is of great significance.
Detailed description of the invention
Fig. 1 is the knot of the surface-mount type speed permanent magnet synchronous motor rotor of the present invention with stacked metal pole piece spacing
Structure schematic diagram；
Fig. 2 is the side structure schematic view of Fig. 1；
Fig. 3 is the single non-magnetic metallic laminations schematic diagram of stacked metal pole piece spacing；
Fig. 4 is the axial overall structure diagram for laminating the stacked metal pole piece spacing after the completion of solidifying.
Specific embodiment
Specific embodiment 1: illustrating present embodiment below with reference to Fig. 1 to Fig. 4, there is lamination described in present embodiment
The surface-mount type speed permanent magnet synchronous motor rotor of formula metal pole piece spacing, it includes shaft 1, rotor core 2, permanent magnet 3, magnetic pole
Pressing plate 4 and sheath 5, it further includes stacked metal pole piece spacing 6,
Rotor core 2 is sleeved in shaft 1, and permanent magnet 3 is arranged on the outer round surface of rotor core 2, what permanent magnet 3 was formed
Stacked metal pole piece spacing 6 is set between adjacent pole；In the both sides of the face of permanent magnet 3 and stacked metal pole piece spacing 6
Pole end-plate 4 is set, by the outer circle on the cylindrical surface that permanent magnet 3, stacked metal pole piece spacing 6 and pole end-plate 4 are collectively formed
Sheath 5 is provided on surface；
Stacked metal pole piece spacing 6 is overrided to form by multiple non-magnetic metallic laminations 6-1 along axial direction, adjacent non-magnetic gold
Belong to and fills epoxy resin between 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 it is coplanar
Cylindrical surface.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 shaft, outer surface and permanent magnet, pole piece spacing are on same cylindrical surface.In the outer of permanent magnet, pole piece spacing and pole end-plate
On cylindrical surface, the carbon fiber of epoxy resin has been presoaked with some tension winding, has been wound in sheath 5, has had to permanent magnet and applies in advance
Clamp force effect.
Fluted, the number phase for the magnetic pole that the number of groove is formed with permanent magnet 3 is set on the outer round surface of rotor core 2
It matches, is fixed for forming the permanent magnet 3 of a magnetic pole in each groove, is bonded stacked gold on the boss between adjacent grooves
Belong to pole piece spacing 6.The rotor core 2 is formed by silicon steel plate stacking, and outer surface can open up shallow port recess, is used 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 their outer surface is made to be spliced into a cylindrical surface jointly.
The permanent magnet 3 of each magnetic pole is circumferentially made of multiple in the permanent magnet segmentation of tile, and according to permanent magnet
Axial length, carry out axial segmentation to it, reduce high frequency eddy current losses.
The non-magnetic metallic laminations that stacked metal pole piece spacing 6 uses are adjacent folded for the non-magnetic metallic laminations of thin layer
Epoxy resin is saturated between piece, to increase the insulation resistance between lamination, by the lamellate non-magnetic metallic laminations axial pressure of institute
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.
Stacked metal pole piece spacing 6 of the invention is bonded by sheet metal lamination by epoxy resin, is protected in this way
The insulation between adjacent metal lamination has been demonstrate,proved, has made it under high frequency alternating electromagnetic field effect, is nearly free from electromagnetic consumable.It is simultaneously
It maintains metallic magnetic interpolar and is interposed between the advantage for solving carbon fibre composite sheath by bending in stress problem, improve rotor machine
Tool intensity.
Rotor of the invention mechanical strength with higher, by the stacked metal pole piece spacing 6 being put forward for the first time this
Kind metallic laminations structure is used in rotor of the present invention, and mechanical strength is better than using insulating materials pole piece spacings such as epoxy resin
Rotor；Permanent magnet temperature rise is lower than the rotor using insulating materials pole piece spacings such as epoxy resin in the present invention simultaneously, it is improved
The reliability of motor, can greatly promote carbon fibre composite to apply on surface-mount type high-speed permanent magnetic synchronous motor.It compares
In traditional high strength alloy steel sheath motor, carbon fibre composite sheath motor, the non-magnetic sheath used due to the present invention
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 of great significance for high-speed industrial application field.
Claims (3)
1. a kind of surface-mount type speed permanent magnet synchronous motor rotor with stacked metal pole piece spacing, it includes shaft (1), turns
Sub- iron core (2), permanent magnet (3), pole end-plate (4) and sheath (5), which is characterized in that it further includes stacked metallic magnetic interpolar
Every (6),
Rotor core (2) is sleeved on shaft (1), permanent magnet (3) is arranged on the outer round surface of rotor core (2), permanent magnet (3)
Stacked metal pole piece spacing (6) is set between the adjacent pole of formation；In permanent magnet (3) and stacked metal pole piece spacing
(6) pole end-plate (4) are arranged in both sides of the face, altogether by permanent magnet (3), stacked metal pole piece spacing (6) and pole end-plate (4)
Be provided with sheath (5) on outer round surface with the cylindrical surface formed, the sheath (5) wound by carbon fibre initial rinse epoxy resin and
At；
Stacked metal pole piece spacing (6) is overrided to form by multiple non-magnetic metallic laminations (6-1) along axial direction, adjacent non-magnetic gold
Belong to and fills epoxy resin between lamination (6-1).
2. the surface-mount type speed permanent magnet synchronous motor rotor according to claim 1 with stacked metal pole piece spacing,
It is characterized in that, fluted, the magnetic pole of the number of groove and permanent magnet (3) formation is arranged on the outer round surface of rotor core (2)
Number match, be fixed for being formed the permanent magnet (3) of a magnetic pole in each groove, glued on the boss between adjacent grooves
Connect stacked metal pole piece spacing (6).
3. the surface-mount type speed permanent magnet synchronous motor rotor according to claim 1 with stacked metal pole piece spacing,
It is characterized in that, the permanent magnet (3) of each magnetic pole is circumferentially made of multiple in the permanent magnet segmentation of tile.
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 CN106505767A (en) | 2017-03-15 |
| CN106505767B true CN106505767B (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207835199U (en) * | 2017-03-31 | 2018-09-07 | 日本电产株式会社 | Motor, electric power steering device and electric product |
| GB2563615B (en) * | 2017-06-20 | 2020-02-12 | Dyson Technology Ltd | A rotor assembly and method of manufacture thereof |
| 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 |
| 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-mount type synchronous reluctance permanent magnetic motors and vehicle |
| CN113131646A (en) * | 2020-01-13 | 2021-07-16 | 上海盘毂动力科技股份有限公司 | Magnetic steel positioning structure, motor and mounting tool of 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 |
| CN114709992B (en) * | 2022-03-02 | 2022-11-22 | 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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| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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Patent Citations (4)
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|---|---|---|---|---|
| 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 |
| 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 |
| 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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| CN106505767A (en) | 2017-03-15 |
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