CN108696094A - A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material - Google Patents
A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material Download PDFInfo
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- CN108696094A CN108696094A CN201810536424.8A CN201810536424A CN108696094A CN 108696094 A CN108696094 A CN 108696094A CN 201810536424 A CN201810536424 A CN 201810536424A CN 108696094 A CN108696094 A CN 108696094A
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- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 230000005291 magnetic effect Effects 0.000 claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 230000004907 flux Effects 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 238000000748 compression moulding Methods 0.000 claims abstract description 6
- 210000003127 knee Anatomy 0.000 claims description 18
- 230000005415 magnetization Effects 0.000 claims description 13
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 210000000515 tooth Anatomy 0.000 description 138
- 230000035699 permeability Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 210000003464 cuspid Anatomy 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 239000011162 core material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material is covered with the incorgruous permanent magnet to magnetize successively using long stator short Structure of mover on stator, can extend the length of stator as the case may be.Monodentate interval winding is formed between winding.Assist tooth uses soft-magnetic composite material compression molding with mover yoke portion, forms mover holder, and mover holder is provided with the slot for inlaying armature tooth;Armature tooth, which uses, has grain-oriented Si steel sheet to be overrided to form, and big root portion is fixed in the slot of mover holder.Using having the characteristics that grain-oriented Si steel sheet rolling direction magnetic property is good, saturation operating point can be improved, so that the magnetomotive force that stator current generates is increased, to improve stator teeth magnetic flux density and air gap flux density, achievees the purpose that improve linear motor unit volume lower thrust density;Secondly, using soft-magnetic composite material high resistivity the characteristics of.
Description
Technical field
The invention belongs to technical field of motors, and in particular to a kind of not equal teeth mixed structure permanent-magnet linear of soft-magnetic composite material
Motor.
Background technology
Soft-magnetic composite material (Soft Magnetic Composites, SMC) will be pre-mixed using PM technique
High-purity with insulating layer iron powder with organic material compression molding compared with traditional metallicl magnetic material, in recent years
Application is obtained in calutron.Soft-magnetic composite material also has the characteristics that eddy-current loss is small, at high frequencies can be significantly
The iron loss for reducing motor, is widely used in the field of power electronics such as high frequency transformer, high-frequency electric machines, sensor and mutual inductor.But
It is that its magnetic permeability is relatively low, limits its application in low frequency situation.There is grain-oriented Si steel sheet to be commonly used for transformer equal magnetic circuit direction
The ferromagnetic material of the stronger electric appliance of property, the magnetic permeability of rolling direction will be apparently higher than non-oriented silicon steel sheet, but shear direction
Magnetic conductivity it is relatively low, so that it is rarely had application in motor.
In recent years, soft-magnetic composite material is used for the case in the linear motor armature in the fields such as electromagnetic launch by some scholars
Example, to solve the problems such as high-frequency electric machines iron loss is high, heat dissipation is difficult.But the knee point of soft-magnetic composite material magnetization characteristic
Flux density and saturation magnetic induction are below traditional electrical sheet, and knee point flux density is 1.35-1.4T, saturation magnetic induction less than 1.6T, and
23RK090 types have grain-oriented Si steel sheet, and the knee point flux density of rolling direction is 1.7T, saturation magnetic induction about 2T, has good magnetism
Energy.
Invention content
Goal of the invention:
A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material, the purpose is to solve previous existing ask
Topic.
Technical solution:
Using the short Structure of mover of long stator, the incorgruous permanent magnet to magnetize successively is covered on stator, it can be as the case may be
Extend the length of stator.For mover using teeth mixed structure is not waited, not equal teeth are divided into canine tooth and small tooth.Winding, shape are wound on canine tooth
At armature tooth;And wound without winding on small tooth, form assist tooth.Monodentate interval winding is formed between winding.Assist tooth and mover
Yoke portion uses soft-magnetic composite material compression molding, forms mover holder, and mover holder is provided with the slot for inlaying armature tooth;Armature
Tooth, which uses, has grain-oriented Si steel sheet to be overrided to form, and big root portion is fixed in the slot of mover holder.
This patent selection resistance very high soft-magnetic composite material and magnetic property is anisotropic grain-oriented Si steel sheet conduct
Mover core material makes full use of soft-magnetic composite material to have the characteristic of the magnetic circuit of grain-oriented Si steel sheet mixing mover permanent-magnetism linear motor,
The Magnetic circuit characters of motor are fully combined with the permeance of material.Higher thrust can not only be exported, and can be reduced
The cogging torque of linear motor fluctuates the distinctive end detent force of linear motor.
A kind of not equal teeth permanent-magnetism linear motor of soft-magnetic composite material mixed structure, the slot number and number of poles of motor are close, motor
It is made of mover holder, armature tooth, armature winding, air gap, magnetic pole and stator yoke, mover holder includes mover yoke and auxiliary
Tooth, armature tooth and assist tooth use not wide structure, armature winding to be wrapped on armature tooth;Armature tooth and assist tooth are arranged alternately
On the inner wall of mover yoke;
Magnetic pole is arranged in stator yoke, and magnetic pole is correspondingly arranged with armature tooth and assist tooth, and magnetic pole and armature tooth and auxiliary
It helps between tooth and forms air gap.
It is additionally provided with U-lag in the inner wall of mover yoke;Armature winding is wound on armature tooth, is then embedded in mover yoke inner wall
U-lag in, form entirety using epoxy encapsulation.
There is grain-oriented Si steel sheet to laminate into armature tooth ((C) is that armature tooth laminates direction) from riveting, guarantee has grain-oriented Si steel sheet
Rolling direction (A) is consistent with mover longitudinal direction (D), there is the shear direction (B) and the mover direction of motion of grain-oriented Si steel sheet
(E) consistent.
Mover holder is cast by soft-magnetic composite material compression molding.
A kind of not equal teeth permanent-magnetism linear motor of soft-magnetic composite material mixed structure, structure as shown in Figure 1, by long stator and
Short mover composition, mover are to have core construction.The magnetic circuit of motor enters canine tooth from a magnetic pole, by air gap, then leads to
Mover yoke portion and small tooth are crossed, into the magnetic pole to magnetize with the former magnetic pole opposite sex, finally passes through stator yoke and forms closed circuit.It is such
The magnetic circuit of motor has yoke portion magnetic circuit short, the feature of teeth portion magnetic circuit length, and using interval winding so that and armature tooth flux density is high,
Assist tooth flux density is low.Therefore, armature tooth uses canine tooth, and assist tooth uses small tooth, by longer and high flux density armature teeth portion magnetic circuit
Direction is consistent with there is the high permeability direction (rolling direction) of grain-oriented Si steel sheet, and the lower assist tooth of flux density and magnetic circuit are shorter
Mover yoke portion use the lower soft-magnetic composite material of magnetic permeability.Mover yoke portion is molded into assist tooth using soft-magnetic composite material
Type, due to the higher resistivity of soft-magnetic composite material, laminating technology without using punching can also make the eddy-current loss of motor smaller,
And the shorter yoke portion magnetic circuit of proximal pole slot motor has evaded the relatively low problem of soft-magnetic composite material magnetic permeability;Armature tooth is used and is taken
It is formed to silicon steel plate stacking, it is perpendicular to the direction of paper to laminate direction, and mover core uses semi-closed slot structure, armature tooth
Have the shear direction (perpendicular to rolling direction) of grain-oriented Si steel sheet consistent with mover direction of travel, also with zigzag leakage direction one
It causes, solves the problems, such as that semi-closed slot increases zigzag leakage to a certain extent, to further increase linear motor pushing force density.
Assist tooth uses soft-magnetic composite material, and magnetic resistance is larger, can effectively reduce zigzag leakage, further decreases force oscillation, improves
Pushing force density.
End detent force, can cause the force oscillation of motor, be that linear motor is peculiar caused by linear motor end is cut-off
The problem of;Soft-magnetic composite material has the direction of grain-oriented Si steel sheet mixing mover permanent-magnetism linear motor mover brow leakage and has orientation
The shear direction of silicon steel sheet is consistent, and brow leakage reduces, and the lower magnetic conductivity of soft-magnetic composite material also reduces end leakage
Magnetic, weaken to a certain extent end cut-off and caused by the asymmetric problem of three-phase magnetic circuit, to reduce end detent force.
The Parameters design of armature tooth tooth top width:
If mover width of rebate is W, the length of mover is L, and mover core has Q tooth, then stator tooth is away from for Z=L/Q.
If pole span is τ, pole embrace α, then armature tooth tooth top width x2=τ × α.The tooth top width of armature tooth and assist tooth it
With for 2Z-2W, therefore the tooth top width of assist tooth is designed as y2=2Z-2W- τ × α.
In design armature tooth tooth top width x2With assist tooth tooth top width y2On the basis of, by finite element emulation software ANSOFT
To determine the armature tooth facewidth (x1) and the assist tooth facewidth (y1).Under idle condition, an auxiliary straight line is drawn in teeth portion, calculates electricity
The tooth flux density of armature tooth and assist tooth, by adjusting the facewidth (x of armature tooth1), tooth top width (x2) and assist tooth the facewidth (y1), tooth
Top width (y2), make the close magnetization curve knee point for having grain-oriented Si steel sheet of the tooth flux density of armature tooth (2), the tooth flux density of assist tooth (9)
Close to the knee point of soft-magnetic composite material magnetization curve.The knee point for being generally oriented silicon steel sheet rolling direction magnetization curve is 1.7T-
The knee point of 1.8T, soft-magnetic composite material magnetization curve are 1.35T-1.4T.The concrete numerical value of knee point and the silicon steel sheet of selection and soft
The model of magnetic composite material is related.(this relationship belongs to conventionally known feature, belongs to implicit disclosed feature, here not
It repeats again!)
Beneficial effects of the present invention:
The not equal teeth permanent-magnetism linear motor of a kind of soft-magnetic composite material mixed structure, using having grain-oriented Si steel sheet and soft magnetism compound
Material mixing Structure of mover has realized the anisotropic magnetic property of grain-oriented Si steel sheet and the low eddy-current loss of soft-magnetic composite material
It is combined with the Magnetic circuit characters of motor of the present invention.Mover is not using waiting toothings, armature tooth to use canine tooth, and assist tooth is using small
Tooth has fully considered that armature tooth flux density is high, the low feature of assist tooth flux density.Armature tooth magnetic line of force direction and there is grain-oriented Si steel sheet
Rolling direction (high magnetic property direction) is consistent, and mover assist tooth and yoke portion use soft-magnetic composite material;First, using taking
Saturation operating point can be improved, the magnetomotive force that stator current generates is made to increase by the feature good to silicon steel sheet rolling direction magnetic property
Greatly, to improve stator teeth magnetic flux density and air gap flux density, reach and improve linear motor unit volume lower thrust density
Purpose;Secondly, using soft-magnetic composite material high resistivity the characteristics of, reduces eddy-current loss of the motor when high frequency is run;Together
When, there is grain-oriented Si steel sheet shear direction (perpendicular to rolling while so that linear motor pushing force fluctuation is reduced using semi-closed slot
Direction) magnetic permeability is low, the zigzag leakage of semi-closed slot is restrained effectively, thus force oscillation can be reduced, and into one
Step improves the pushing force density of linear motor;In addition, shear direction magnetic property is poor, this can inhibit straight line to a certain extent
Motor because end is cut-off and caused by magnetic circuit asymmetry problem, and then reduce end detent force.
Description of the drawings
Fig. 1 is the not equal teeth permanent-magnetism linear motor structural representation of soft-magnetic composite material mixed structure of an embodiment of the present invention
Figure.
Fig. 2 is mover support schematic diagram in Fig. 1.
Fig. 3 is armature tooth schematic diagram in Fig. 1.
Fig. 4 is armature tooth and the assist tooth facewidth and tooth top width schematic diagram.
1. mover holder in figure, 2. armature tooths, 3. armature winding, 4. air gaps, 5. magnetic poles, 6. stator yokes, 7. mover yokes,
8.U shape slots, 9. assist tooths, 10. have a grain-oriented Si steel sheet, A. rolling directions, B. shear directions, and C. laminates direction, D, longitudinal direction,
E, mover traffic direction, x1The armature tooth facewidth, x2Armature tooth tooth top width, y1The assist tooth facewidth, y2Assist tooth tooth top width, W are
Width of rebate.
Specific implementation mode
The present invention proposes soft-magnetic composite material and has grain-oriented Si steel sheet to be used in mixed way, and cooperation does not wait the spy of toothings magnetic circuit
Different property, that is, play soft-magnetic composite material high-frequency electric machines advantage, and utilize have grain-oriented Si steel sheet rolling direction magnetic permeability high
Characteristic improves the pushing force density of motor, and avoids the low problem of grain-oriented Si steel sheet shear direction magnetic conductivity.
The slot number and number of poles of motor are close, and motor is by mover holder 1, armature tooth 2, armature winding 3, air gap 4,5 and of magnetic pole
Stator yoke 6 forms, and mover holder 1 includes mover yoke 7 and assist tooth 9, and armature tooth 2 and assist tooth 9 use not wide structure, electricity
Pivot winding 3 is wrapped on armature tooth 2;Armature tooth 2 and assist tooth 9 are disposed alternately on the inner wall of mover yoke 7;
Magnetic pole 5 is arranged in stator yoke 6, and magnetic pole 5 and armature tooth 2 and assist tooth 9 are correspondingly arranged and magnetic pole 5 and armature tooth
Air gap 4 is formed between 2 and assist tooth 9.
It is additionally provided with U-lag 8 in the inner wall of mover yoke 7;Armature winding 3 is wound on armature tooth 2, is then embedded in mover yoke
In the U-lag 8 of 7 inner walls, entirety is formed using epoxy encapsulation.Having grain-oriented Si steel sheet 10 from riveting to laminate into armature tooth 2, (C is
Armature tooth laminates direction), guarantee has the rolling direction A of grain-oriented Si steel sheet 10 and mover longitudinal direction D to be consistent, and has oriented silicon
The shear direction B of steel disc 10 is consistent with mover direction of motion E.
Mover holder 1 is cast by soft-magnetic composite material compression molding.
Embodiment:
An embodiment of the present invention is described further below in conjunction with the accompanying drawings.
It is a kind of not wait teeth proximal pole slot permanent-magnetism linear motor structure as shown in Figure 1, being equipped with incorgruous successively magnetize on long stator
Permanent magnet 5.Mover core is made of mover holder 1 and armature tooth 2.Mover holder is as shown in Fig. 2, mover holder uses soft magnetism
Composite material integral formed, mover yoke 7 are provided with the U-lag 8 for inlaying armature tooth 2.Armature tooth 2 is as shown in figure 3, each armature tooth 2
There is grain-oriented Si steel sheet 10 to be overrided to form by multi-disc, it is longitudinal that every, which has the rolling direction of grain-oriented Si steel sheet 10, and it is vertical to laminate direction
Directly in the direction of paper.It imbeds in the U-lag 8 of mover holder the root of each armature tooth 2.It is single that three-phase windings are arranged in order composition
Space of teeth winding, armature tooth 2 is wound with winding 3, and assist tooth 8 is wound without winding.Mover core mover holder 1 and armature tooth 2 are logical
It crosses after the connection of U-lag 8 of mover holder, entirety is formed using epoxy encapsulation, to reduce the vibration of motor at runtime.
The Parameters design of armature tooth tooth top width:
If mover width of rebate is W, the length of mover is L, and mover core has Q tooth, then stator tooth is away from for Z=L/Q.
If pole span is τ, pole embrace α, then armature tooth tooth top width x2=τ × α.The tooth top width of armature tooth and assist tooth it
With for 2Z-2W, therefore the tooth top width of assist tooth is designed as y2=2Z-2W- τ × α.
In design armature tooth tooth top width x2With assist tooth tooth top width y2On the basis of, by finite element emulation software ANSOFT
To determine the armature tooth facewidth (x1) and the assist tooth facewidth (y1).Under idle condition, an auxiliary straight line is drawn in teeth portion, calculates electricity
The tooth flux density of armature tooth 2 and assist tooth 9, by adjusting the facewidth (x of armature tooth 21), tooth top width (x2) and assist tooth 9 the facewidth
(y1), tooth top width (y2), make the close magnetization curve knee point for having grain-oriented Si steel sheet of the tooth flux density of armature tooth 2, the tooth magnetic of assist tooth 9
Touch the knee point of nearly soft-magnetic composite material magnetization curve.The knee point for being generally oriented silicon steel sheet rolling direction magnetization curve is
The knee point of 1.8T, soft-magnetic composite material magnetization curve are 1.35-1.4T.The concrete numerical value of knee point and the silicon steel sheet of selection and soft magnetism
The model of composite material is related.(this relationship belongs to conventionally known feature, belongs to implicit disclosed feature, here no longer
It repeats!)
The present invention has a grain-oriented Si steel sheet mixing mover permanent-magnetism linear motor using soft-magnetic composite material, and main flux is from a magnetic
Pole is set out, and by air gap, is entered mover yoke portion by the armature tooth closed on, then by the assist tooth of the other side, then is passed through gas
Gap returns to the incorgruous magnetic pole that magnetizes adjacent with former magnetic pole.Mover teeth portion magnetic circuit is longer, and yoke portion magnetic circuit is shorter, and armature tooth magnetic
Close height, assist tooth flux density is low, to there is the connected applications of grain-oriented Si steel sheet and soft-magnetic composite material to provide condition, makes mover teeth portion
Magnetic circuit is consistent with there is grain-oriented Si steel sheet rolling direction, and it is good to take full advantage of grain-oriented Si steel sheet rolling direction magnetic property
Feature;Shorter yoke portion magnetic circuit and the lower assist tooth of flux density avoid the poor disadvantage of soft-magnetic composite material magnetic property.It is dynamic
Son using semi-closed slot structure zigzag leakage direction and have the shear direction (perpendicular to rolling direction) of grain-oriented Si steel sheet unanimously,
The problem of inhibiting semi-closed slot to increase zigzag leakage to a certain extent, to further increase linear motor pushing force density.
Claims (6)
1. a kind of not equal teeth permanent-magnetism linear motor of soft-magnetic composite material mixed structure, it is characterised in that:The slot number and number of poles of motor
Close, motor is by mover holder (1), armature tooth (2), armature winding (3), air gap (4), magnetic pole (5) and stator yoke (6) group
At mover holder (1) includes mover yoke (7) and assist tooth (9), and armature tooth (2) and assist tooth (9) use not wide structure, electricity
Pivot winding (3) is wrapped on armature tooth (2);Armature tooth (2) and assist tooth (9) are disposed alternately on the inner wall of mover yoke (7);Magnetic
Pole (5) is arranged in stator yoke (6), and magnetic pole (5) and armature tooth (2) and assist tooth (9) are correspondingly arranged and magnetic pole (5) and armature
Air gap (4) is formed between tooth (2) and assist tooth (9).
2. a kind of not equal teeth permanent-magnetism linear motor of soft-magnetic composite material mixed structure according to claim 1, feature exist
In:It is additionally provided with U-lag (8) in the inner wall of mover yoke (7);Armature winding (3) is wound on armature tooth (2), is then embedded in dynamic
In the U-lag (8) of sub- yoke (7) inner wall, entirety is formed using epoxy encapsulation.
3. a kind of not equal teeth permanent-magnetism linear motor of soft-magnetic composite material mixed structure according to claim 1, feature exist
In:There is grain-oriented Si steel sheet (10) to laminate into armature tooth (2) ((C) is that armature tooth laminates direction) from riveting, guarantee has grain-oriented Si steel sheet
(10) rolling direction (A) is consistent with mover longitudinal direction (D), is had the shear direction (B) of grain-oriented Si steel sheet (10) and is moved
The sub- direction of motion (E) is consistent.
4. a kind of not equal teeth permanent-magnetism linear motor of soft-magnetic composite material mixed structure according to claim 1, feature exist
In:Mover holder (1) is cast by soft-magnetic composite material compression molding.
5. a kind of soft-magnetic composite material mixed structure as described in claim 1 does not wait the tooth top width in teeth permanent-magnetism linear motor to set
Meter method, it is characterised in that:If mover width of rebate is W, the length of mover is L, and mover core has Q tooth, then mover tooth pitch
For Z=L/Q;Armature tooth tooth top width x2=τ × α, wherein τ are pole span, and α is pole embrace;The tooth top width of armature tooth and assist tooth
The sum of be 2Z-2W, therefore the tooth top width of assist tooth is designed as y2=2Z-2W- τ × α.
6. Design of Tooth Width of Right Shaft method according to claim 5, it is characterised in that:This method is based on finite element analysis software
The Design of Tooth Width of Right Shaft method of ANSOFT draws an auxiliary straight line in teeth portion, calculates the armature tooth on auxiliary straight line under idle condition
(2) and the tooth flux density of assist tooth (9), by adjusting the facewidth (x of armature tooth (2)1), tooth top width (x2) and assist tooth (9) the facewidth
(y1), tooth top width (y2), make the close magnetization curve knee point for having grain-oriented Si steel sheet of the tooth flux density of armature tooth (2), assist tooth (9)
Knee point of the tooth flux density close to soft-magnetic composite material magnetization curve;The knee point for being generally oriented silicon steel sheet rolling direction magnetization curve is
The knee point of 1.7-1.8T, soft-magnetic composite material magnetization curve are 1.35-1.4T;The concrete numerical value of knee point and the silicon steel sheet of selection and
The model of soft-magnetic composite material is related.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810536424.8A CN108696094A (en) | 2018-05-30 | 2018-05-30 | A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810536424.8A CN108696094A (en) | 2018-05-30 | 2018-05-30 | A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687616A (en) * | 2019-02-25 | 2019-04-26 | 河北工业大学 | Novel permanent magnetic saturable synchronous magnetic resistance motor |
| CN111313628A (en) * | 2020-03-23 | 2020-06-19 | 东莞市智赢智能装备有限公司 | Direct-drive motor rotor forming process |
| CN112953156A (en) * | 2021-04-16 | 2021-06-11 | 河北工业大学 | Cylindrical permanent magnet linear motor adopting mixed material stator magnetic core |
| CN113629915A (en) * | 2021-08-03 | 2021-11-09 | 珠海格力电器股份有限公司 | Rotor assembly, electric spindle assembly and motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345439A (en) * | 2007-07-11 | 2009-01-14 | A.O.史密斯公司 | Electric motor having a stator |
| CN102882348A (en) * | 2012-10-18 | 2013-01-16 | 山东大学 | Dispersed magnetism-conducting block type straight-line switched reluctance motor with single-side stator and rotor with unequal tooth widths |
| CN204408034U (en) * | 2015-02-06 | 2015-06-17 | 沈阳工业大学 | A kind of assembled stator structure of monodentate of low speed proximal pole groove magneto |
| CN107994753A (en) * | 2017-12-21 | 2018-05-04 | 沈阳工业大学 | There is grain-oriented Si steel sheet proximal pole groove permanent-magnetism linear motor design method |
| CN209016912U (en) * | 2018-05-30 | 2019-06-21 | 沈阳工业大学 | A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material |
-
2018
- 2018-05-30 CN CN201810536424.8A patent/CN108696094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345439A (en) * | 2007-07-11 | 2009-01-14 | A.O.史密斯公司 | Electric motor having a stator |
| CN102882348A (en) * | 2012-10-18 | 2013-01-16 | 山东大学 | Dispersed magnetism-conducting block type straight-line switched reluctance motor with single-side stator and rotor with unequal tooth widths |
| CN204408034U (en) * | 2015-02-06 | 2015-06-17 | 沈阳工业大学 | A kind of assembled stator structure of monodentate of low speed proximal pole groove magneto |
| CN107994753A (en) * | 2017-12-21 | 2018-05-04 | 沈阳工业大学 | There is grain-oriented Si steel sheet proximal pole groove permanent-magnetism linear motor design method |
| CN209016912U (en) * | 2018-05-30 | 2019-06-21 | 沈阳工业大学 | A kind of not equal teeth mixed structure permanent-magnetism linear motor of soft-magnetic composite material |
Non-Patent Citations (4)
| Title |
|---|
| 常立娟: "近极槽永磁电机的性能比较研究", 中国优秀硕士学位论文全文数据库, vol. 2, no. 3, pages 042 - 198 * |
| 张毅等: "现代冲压技术", 30 June 1994, 国防工业出版社, pages: 223 - 231 * |
| 彭兵等: "不等齿宽提高多槽少极隔齿隔相绕组永磁电机转矩的方法", 中国电机工程学报, vol. 32, pages 242 - 248 * |
| 董婷等: "不等齿顶宽间隔绕组对直接驱动转台电机转矩特性的影响", 电工技术学报, vol. 25, no. 8, pages 12 - 18 * |
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| CN109687616A (en) * | 2019-02-25 | 2019-04-26 | 河北工业大学 | Novel permanent magnetic saturable synchronous magnetic resistance motor |
| CN109687616B (en) * | 2019-02-25 | 2023-08-22 | 河北工业大学 | Novel permanent magnet magnetism-assisted synchronous reluctance motor |
| CN111313628A (en) * | 2020-03-23 | 2020-06-19 | 东莞市智赢智能装备有限公司 | Direct-drive motor rotor forming process |
| CN112953156A (en) * | 2021-04-16 | 2021-06-11 | 河北工业大学 | Cylindrical permanent magnet linear motor adopting mixed material stator magnetic core |
| CN112953156B (en) * | 2021-04-16 | 2024-05-07 | 河北工业大学 | Cylindrical permanent magnet linear motor adopting mixed material stator magnetic core |
| CN113629915A (en) * | 2021-08-03 | 2021-11-09 | 珠海格力电器股份有限公司 | Rotor assembly, electric spindle assembly and motor |
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