CN108199505A - A kind of orientation silicon steel stator core and preparation method thereof - Google Patents
A kind of orientation silicon steel stator core and preparation method thereof Download PDFInfo
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- CN108199505A CN108199505A CN201711476191.9A CN201711476191A CN108199505A CN 108199505 A CN108199505 A CN 108199505A CN 201711476191 A CN201711476191 A CN 201711476191A CN 108199505 A CN108199505 A CN 108199505A
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- silicon steel
- orientation silicon
- iron core
- core
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000003475 lamination Methods 0.000 claims abstract description 45
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000005452 bending Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011162 core material Substances 0.000 description 44
- 239000011159 matrix material Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 206010039740 Screaming Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention relates to a kind of orientation silicon steel stator cores, it is characterized in that the stator core includes multiple U-iron cores being made of orientation silicon steel lamination, the multiple U-iron core is bonded to an annular orientation silicon steel iron core, a No yield point yoke portion annulus is arranged outside the annular orientation silicon steel iron core, if the U-iron core is longitudinally formed by stacking by dry plate U-shaped orientation silicon steel lamination.The core structure of the present invention not only gives full play to the characteristic of the high and low iron loss of oriented electrical steel rolling direction magnetic conductivity, and have the characteristics that magnetic circuit is short, leakage field is few, loss is low, noise is small, stock utilization is high, torque density is high, copper wire dosage can also be reduced, reduces motor temperature rise.
Description
Technical field
The present invention relates to the iron core fields of motor and generator, and in particular to a kind of orientation silicon steel stator core and its system
Make method.
Background technology
Traditional electric machine iron core is non-oriented electrical steel（Silicon steel sheet）It is overrided to form, and stator lasmination is is stamped to form to electricity
Work steel has compared with macrolesion, while non-oriented electrical steel can not really realize material isotropic requirement, and there is also not Tongfangs
The height of upward magnetic conductivity and iron loss and low, additionally, due to the particularity of its crystal grain texture, selects the electrical sheet of the higher trade mark, cost
It increases substantially, but motor performance increase is limited；And if orientation silicon steel is selected directly non-oriented electrical steel to be replaced to be applied to electricity
Machine iron core, due to the high magnetic strength of oriented electrical steel rolling direction, low iron loss, but other direction magnetic characteristic poor-performings, so usually
Using orientation silicon steel as during stator core, it is all mutually to be overrided to form, and by motor tooth that iron core, which is stacked with non-oriented electrical steel,
The limitation of portion's shape, flute profile, yoke portion flux density, design optimization difficulty increases considerably, although improving motor performance to a certain extent,
But there is the shortcomings that processing is complicated, stock utilization is low, cost is excessively high, therefore, typically using non-orientation silicon steel lamination and
Orientation silicon steel lamination cooperatively forms.
Applicant in 2016 application application No. is 201610408023.5 a kind of anti-leakage field low-loss driving motor,
Including stator and rotor；Stator includes stator core and stator winding, and rotor includes rotor core and rotor magnetic steel；Its feature exists
In：The stator core includes the annular stator core yoke portion's matrix being made of stator non-orientation silicon steel lamination and multiple by fixed
The stator core inserts of sub- orientation silicon steel lamination composition, multiple stator core inserts uniform intervals are connected to stator core yoke portion ring
The interior hand hay cutter of shape matrix, multiple stator winding pass through respectively between each adjacent stator core inserts；The rotor core includes
The ring-shaped rotor iron core matrix and multiple rotors being made of rotor orientation silicon steel lamination being made of rotor non-orientation silicon steel lamination
Iron core inserts, the interlocking of multiple rotor core inserts uniform intervals the outside of rotor core matrix and with rotor core matrix it is common
Rounded outer surface is formed, multiple rotor magnetic steels are separately positioned between rotor core matrix and each rotor core inserts.It is wherein fixed
Sub- iron core is exactly annular stator core yoke portion's matrix for being made of stator non-orientation silicon steel lamination and multiple by stator orientation silicon steel
Magnetic circuit is collectively formed in the stator core inserts of lamination composition.
Invention content
The object of the present invention is to provide a kind of orientation silicon steel stator core, this core structure not only gives full play to orientation electricity
The characteristic of the high and low iron loss of work steel rolling direction magnetic conductivity, and with magnetic circuit is short, leakage field is few, loss is low, stock utilization is high,
The features such as torque density is high, moreover it is possible to reduce copper wire dosage, reduce motor temperature rise.
To achieve these goals, technical scheme is as follows：A kind of orientation silicon steel stator core, it is characterised in that
The stator core includes multiple U-iron cores being made of orientation silicon steel lamination, and the multiple U-iron core is bonded to an annular
Orientation silicon steel iron core, the annular orientation silicon steel iron core is arranged a No yield point yoke portion annulus outside, if the U-iron core is by dry plate U
Shape orientation silicon steel lamination is longitudinally formed by stacking.
According to a preferred embodiment of the invention, positioned at the inward at both ends of the multi-disc U-shaped orientation silicon steel lamination of U-iron in-core side
It is bent to form bending part so that the both ends end for the U-iron core being formed by stacking forms pointed shape protrusion inwardly.
According to a preferred embodiment of the invention, if using bonding between the dry plate U-shaped orientation silicon steel lamination of composition U-iron core
Agent bonds, binding agent model TH0300-1.
According to a preferred embodiment of the invention, the inside of the No yield point yoke portion annulus forms multiple arcs slot, each arc
Shape slot corresponds to a U-iron core.
It is a further object of the present invention to provide a kind of production method of orientation silicon steel stator core, the core structure produced
The characteristic of the high and low iron loss of oriented electrical steel rolling direction magnetic conductivity is not only given full play to, and with magnetic circuit is short, leakage field is few, damage
Consume the features such as low, noise is small, stock utilization is high, torque density is high, moreover it is possible to reduce copper wire dosage, reduce motor temperature rise.
To achieve these goals, technical scheme is as follows：A kind of production method of orientation silicon steel stator core,
It is characterized in that this method includes the following steps：
A, U-shaped orientation silicon steel lamination is made, if so that dry plate U-shaped orientation silicon steel lamination is longitudinally built up a U-iron
Core, and the both ends end of the U-iron core forms pointed shape protrusion inwardly；
B, if the dry plate U-shaped orientation silicon steel lamination is longitudinally overlapped and is bonded to U-iron core；
C, multiple U-iron cores are bonded to an annular orientation silicon steel iron core；
D, by No yield point yoke portion's annulus after hot jacket is handled, with the annular orientation silicon steel iron core adhesive solidification；
E, the iron core after curing is heat-treated, and eliminates stress.
Further, in step A, oriented electrical steel strip is cut into design length along motor rolling direction, and design has U-shaped
The inner template of outer profile and the exterior sheathing of U-shaped Internal periphery bend U-shaped orientation silicon steel lamination using inner template and exterior sheathing, bend
Temperature is preferably 300 ~ 350 °C.Through experiment, orientation steel disc bends to required shape under 300 ~ 350 °C, and ensures to be orientated steel disc
Magnetic property do not change, as temperature restores to fall normality, the mechanical property of steel disc do not change.
Further, in step A and step B, positioned at U-iron in-core side multi-disc U-shaped orientation silicon steel lamination both ends to
Inner bending forms bending part so that the both ends end for the U-iron core being formed by stacking forms protrusion inwardly.
The features of the present invention is：The U-iron core if present invention utilization dry plate U-shaped orientation silicon steel lamination is formed by stacking, and will be more
A U-iron core is bonded to an annular orientation silicon steel iron core, and according to magnetic flux minimal path principle, orientation steel disc magnetic conductivity is higher than nothing
Magnetic conductivity is orientated, the magnetic flux that permanent magnet generates is walked stator teeth through air gap, is closed along U-shaped grain-oriented Si steel sheet, then through air gap,
Realize that magnetic circuit is most short；Steel disc is orientated since magnetic conductivity is high, teeth portion degree of saturation is low, and stator teeth and trench bottom leakage field are relatively low, from
And reduce leakage reactance；Oriented steel in addition in rolling direction high magnetic permeability there is the advantage of low iron loss simultaneously, especially in high frequency work
Under condition, motor eddy-current loss and magnetic hystersis loss can be greatly lowered, make the loss of electric machine minimum；Motor stator core is in rotary magnetic
Off field, most of magnetic flux reduces oriented steel loop section saturation through oriented steel circulation mistake, a small amount of No yield point steel loop as supplement
Point realizes that the utilization rate of core material maximizes；Due to the high-magnetodensity of oriented steel, low-loss, to design of electrical motor, there are larger
Design space, under identical size, orientation steel motor can have higher electromagnetic load, adjustment electricity, magnetic be required to bear according to technology
Lotus ratio can also realize low specific electric load, low heat loads, so this programme motor can realize that high torque exports, moreover it is possible to reduce
The advantages that copper wire dosage, reduction motor temperature rise.
Description of the drawings
Fig. 1 is the floor map of the orientation silicon steel stator core of the present invention.
Fig. 2 is the stereogram of Fig. 1.
Fig. 3 is the floor map of the annular orientation silicon steel iron core of the present invention.
Fig. 4 is the stereogram of Fig. 3.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawings and examples.
As shown in the figure, a kind of orientation silicon steel stator core, it is characterised in that the stator core includes multiple by oriented silicon
The U-iron core 1 of steel lamination composition, the multiple U-iron core are bonded to an annular orientation silicon steel iron core, the annular oriented silicon
A No yield point yoke portion annulus 2 is arranged outside steel core, if the U-iron core is formed by stacking by dry plate U-shaped orientation silicon steel lamination.
According to a preferred embodiment of the invention, positioned at the both ends of the multi-disc U-shaped orientation silicon steel lamination 3 of U-iron in-core side to
Inner bending forms bending part 4 so that the both ends end for the U-iron core being formed by stacking forms pointed shape protrusion, lug boss inwardly
Winding can conveniently be dissipated by, which dividing, places fixation, can also reduce air gap cogging torque.
According to a preferred embodiment of the invention, if using bonding between the dry plate U-shaped orientation silicon steel lamination of composition U-iron core
Agent bonds, binding agent model TH0300-1.
According to a preferred embodiment of the invention, the inside of the No yield point yoke portion annulus forms multiple arcs slot, each arc
Shape slot corresponds to a U-iron core.
It is a further object of the present invention to provide a kind of production method of orientation silicon steel stator core, the core structure produced
The characteristic of the high and low iron loss of oriented electrical steel rolling direction magnetic conductivity is not only given full play to, and with magnetic circuit is short, leakage field is few, damage
Consume the features such as low, noise is small, stock utilization is high, torque density is high, moreover it is possible to reduce copper wire dosage, reduce motor temperature rise.
To achieve these goals, technical scheme is as follows：A kind of production method of orientation silicon steel stator core,
It is characterized in that this method includes the following steps：
A, U-shaped orientation silicon steel lamination is made, if so that dry plate U-shaped orientation silicon steel lamination is built up a U-iron core, and
The both ends end of the U-iron core forms shape protrusion of screaming inwardly；
If the dry plate U-shaped orientation silicon steel lamination B, is bonded to U-iron core, binding agent model TH0300-1；
C, multiple U-iron cores are bonded to an annular orientation silicon steel iron core；
D, bonding coat is coated on annular orientation silicon steel iron core surface, by No yield point yoke portion annulus after hot jacket is handled, is inserted in institute
It states annular orientation silicon steel iron core to bond, is formed by curing the orientation silicon steel stator core of the present invention；
E, the iron core after curing is heat-treated, and eliminates stress, and destressing heat treatment technique is carried out to the iron core after curing can be with
Optimize magnetic property, and eliminate the yield stress of oriented steel.
Further, in step A, oriented electrical steel strip is cut into design length, oriented electrical steel along motor rolling direction
Bandwidth is electric machine iron core thickness, and the exterior sheathing of inner template and U-shaped Internal periphery of the design with U-shaped outer profile utilizes inner template
U-shaped orientation silicon steel lamination is bent with exterior sheathing, bending temperature is preferably 350 °C.Due to the both ends end shape inwardly of U-iron core
Into protrusion, therefore the both ends of the multi-disc U-shaped orientation silicon steel lamination positioned at U-iron in-core side need to bend inwards to form bending part.
For multiple U-iron cores is caused to be bonded to an annular orientation silicon steel iron core, therefore the U-shaped opening of the U-shaped orientation silicon steel lamination is wide
Degree should be less than U-shaped bottom width, and two sides should be designed to the radial direction along final stator core.And positioned at U-iron
The U-shaped outer profile of inner template of the multi-disc U-shaped orientation silicon steel lamination of in-core side and the U-shaped Internal periphery both ends of exterior sheathing should also be set
There is bending part, so that the U-shaped orientation silicon steel lamination inward at both ends of the final shaping is bent to form bending part.
It will be appreciated by those skilled in the art that in order to enable U-shaped orientation silicon steel lamination can build up U-iron core, one is needed
The inner template and exterior sheathing of packet size gradual change so that adjacent two panels U-shaped orientation silicon steel in one group of U-shaped orientation silicon steel lamination of formation
The inside and outside contour of lamination matches, to overlap.
Bend U-shaped oriented steel lamination has some superiority than the U-iron core being overlapped into：In electric machine rotary magnetic field, entirely
Flux density upper section is stator teeth in stator, and the magnetic line of force can pass through interlayer spacings, but these by teeth portion through being orientated steel disc, centre
The summation of interlayer spacings is much smaller than the gap in stacked path, although bend the axial eddy of oriented steel electric machine iron core generation
Ability increases, but radial direction eddy current is reduced simultaneously, in conjunction with the characteristic of the low iron loss of oriented steel, can significantly weaken motor
Core loss；Stacked simultaneously also have that processing is complicated, stock utilization is not high, circle concentricity can not ensure etc. to lack in stator
It falls into；Stacked since the every section of shear is larger simultaneously, short circuit easily occurs for interlayer, generates layer short circuit electric current, increases motor
Core loss reduces motor electromagnetic performance.
Claims (7)
1. a kind of orientation silicon steel stator core, it is characterised in that the stator core includes multiple being made of orientation silicon steel lamination
U-iron core, the multiple U-iron core are bonded to an annular orientation silicon steel iron core, are arranged outside the annular orientation silicon steel iron core
One No yield point yoke portion annulus, if the U-iron core is longitudinally formed by stacking by dry plate U-shaped orientation silicon steel lamination.
2. orientation silicon steel stator core as described in claim 1, feature exist, the multi-disc U-shaped positioned at U-iron in-core side is orientated
The inward at both ends of silicon steel laminations is bent to form bending part so that the both ends end for the U-iron core being formed by stacking forms point inwardly
Angular protrusion.
3. orientation silicon steel stator core as described in claim 1, feature exist, if the dry plate U-shaped oriented silicon of composition U-iron core
It is bonded between steel lamination using binding agent, binding agent model TH0300-1.
4. orientation silicon steel stator core as described in claim 1, feature exist, the inside of the No yield point yoke portion annulus is formed
Multiple arcs slot, each arc groove correspond to a U-iron core.
5. a kind of production method of orientation silicon steel stator core, it is characterised in that this method includes the following steps：
A, U-shaped orientation silicon steel lamination is made, if so that dry plate U-shaped orientation silicon steel lamination is built up a U-iron core, and
The both ends end of the U-iron core forms protrusion inwardly；
B, if the dry plate U-shaped orientation silicon steel lamination is longitudinally overlapped, and be bonded to U-iron core；
C, multiple U-iron cores are bonded to an annular orientation silicon steel iron core；
D, by No yield point yoke portion's annulus after hot jacket is handled, with the annular orientation silicon steel iron core adhesive solidification；
E, the iron core after curing is heat-treated, and eliminates stress.
6. the production method of orientation silicon steel stator core as claimed in claim 5, feature exist, in step A, oriented electrical steel
Band is cut into design length along motor rolling direction, and design has the inner template of U-shaped outer profile and the exterior sheathing of U-shaped Internal periphery,
U-shaped orientation silicon steel lamination is bent using inner template and exterior sheathing, bending temperature is preferably 300 ~ 350 °C.
7. the production method of orientation silicon steel stator core as claimed in claim 5, feature exist, in step A and step B, position
Bending part is bent to form in the inward at both ends of the multi-disc U-shaped orientation silicon steel lamination of U-iron in-core side so that the U-shaped being formed by stacking
The both ends end of iron core forms pointed shape protrusion inwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711476191.9A CN108199505A (en) | 2017-12-29 | 2017-12-29 | A kind of orientation silicon steel stator core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711476191.9A CN108199505A (en) | 2017-12-29 | 2017-12-29 | A kind of orientation silicon steel stator core and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108199505A true CN108199505A (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711476191.9A Pending CN108199505A (en) | 2017-12-29 | 2017-12-29 | A kind of orientation silicon steel stator core and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611384A (en) * | 2019-09-12 | 2019-12-24 | 华中科技大学 | A Magnetic Circuit Decomposition Type Vernier Permanent Magnet Motor |
| CN111277056A (en) * | 2018-12-04 | 2020-06-12 | 常州威灵电机制造有限公司 | Stator core and motor |
| CN112018912A (en) * | 2020-08-31 | 2020-12-01 | 首钢智新迁安电磁材料有限公司 | Motor stator structure and manufacturing method thereof |
| CN113890216A (en) * | 2021-09-14 | 2022-01-04 | 华中科技大学 | Axial-radial hybrid laminated vernier permanent magnet motor |
| US11888350B2 (en) | 2021-02-26 | 2024-01-30 | Huawei Digital Power Technologies Co., Ltd. | Stator, stator manufacturing method, motor, and electric vehicle |
| CN117578836A (en) * | 2024-01-12 | 2024-02-20 | 苏州英磁新能源科技有限公司 | Rotor structure of cylinder type linear motor and cylinder type linear motor |
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| CN207782503U (en) * | 2017-12-29 | 2018-08-28 | 上海英磁新能源科技有限公司 | A kind of orientation silicon steel stator core |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111277056A (en) * | 2018-12-04 | 2020-06-12 | 常州威灵电机制造有限公司 | Stator core and motor |
| CN110611384A (en) * | 2019-09-12 | 2019-12-24 | 华中科技大学 | A Magnetic Circuit Decomposition Type Vernier Permanent Magnet Motor |
| CN112018912A (en) * | 2020-08-31 | 2020-12-01 | 首钢智新迁安电磁材料有限公司 | Motor stator structure and manufacturing method thereof |
| US11888350B2 (en) | 2021-02-26 | 2024-01-30 | Huawei Digital Power Technologies Co., Ltd. | Stator, stator manufacturing method, motor, and electric vehicle |
| CN113890216A (en) * | 2021-09-14 | 2022-01-04 | 华中科技大学 | Axial-radial hybrid laminated vernier permanent magnet motor |
| CN117578836A (en) * | 2024-01-12 | 2024-02-20 | 苏州英磁新能源科技有限公司 | Rotor structure of cylinder type linear motor and cylinder type linear motor |
| CN117578836B (en) * | 2024-01-12 | 2024-04-26 | 苏州英磁新能源科技有限公司 | Rotor structure of cylinder type linear motor and cylinder type linear motor |
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