CN106208437A - A kind of wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator - Google Patents
A kind of wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator Download PDFInfo
- Publication number
- CN106208437A CN106208437A CN201610659485.4A CN201610659485A CN106208437A CN 106208437 A CN106208437 A CN 106208437A CN 201610659485 A CN201610659485 A CN 201610659485A CN 106208437 A CN106208437 A CN 106208437A
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- stator core
- stator
- wheel hub
- electric motor
- electric vehicle
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Classifications
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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
- H02K1/12—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
- 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
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- 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
- H02K1/2786—Outer rotors
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The present invention relates to a kind of wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator.A kind of wheel hub electric motor of electric vehicle stator of the present invention, including stator core and support, stator core is fixed on support, stator core external diameter is 205.01～212mm, the width of rebate of stator core slot and stator core external diameter, stator core internal diameter, the yoke portion thickness of stator core, stator core slot number meets following relation: the width of rebate of stator core slot=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (the yoke portion thickness of stator core external diameter stator core internal diameter stator core)/stator core slot number, wherein the span of α is 0.3～0.9.It provides the benefit that: the electrical power in the stator structure reasonably optimizing of present invention motor magnetic Circuit Design and magnetic power, avoid the phenomenon drastically generated heat because of motor in short-time overload appearance, prevent winding insulation layer destroyed and the problem of hall position sensor inefficacy, add the service life of motor.
Description
Technical field
The present invention relates to vehicle technology field, particularly to a kind of wheel hub electric motor of electric vehicle stator and determine containing this kind
The motor of son.
Background technology
Due to it, traveling is convenient, be prone to the advantages such as stop, environmental protection is favored by consumers in general in electric motor car.Motor
As the core component of electric motor car, its performance, efficiency, reliability etc. are very big on electric motor car impact, high performance driving motor pair
The realization of whole electric vehicle function has decisive role.
At present, motor of electric motor car mostly is wheel hub motor, and the critical piece within wheel hub motor is to include radial direction on inner edge
The rotor of the multiple permanent magnet of uniform installation and stator, stator is arranged on hind axle, its outer spacer cartridge rotor, the outer rim of rotor
Is connected with wheel hub one, the setting of the alternating polarity of multiple permanent magnets, the outer rim radial equipartition of stator make multiple for coiling around
The salient pole of group, is pole groove between the salient pole that each two is adjacent.
The dimensional structure of wheel hub motor stator determines the size of magnetic guiding loop dimensional structure, and stator structure is tied with magnetic guiding loop
Structure decides the driving arm of force size of wheel hub motor to a certain extent, and determines the anti-overload ability of motor.Along with material
The extensive raising of life, increasing peasant selects electric motor car as walking-replacing tool, and electric motor car cost and electric motor car are in complexity
Road on stability be the major consideration that peasant selects electric motor car.There is electricity in conventional wheel hub electric motor of electric vehicle
The problem that machine conversion efficiency is low, and under complex road condition (such as road), electric motor car there will be short of power, nothing of climbing
Power, course continuation mileage are short, burn coil, burn the problems such as hall device, and motor failure rate increases suddenly.The way of industry is by increasing at present
Hub size increases stator dimensions to promote anti-overload ability, but necessarily causes electric vehicle structure after being the increase in hub size
Change, the increase of manufacturing cost.Therefore, in the case of not increasing hub size and manufacturing cost, how to improve wheel hub electricity
The efficiency of machine and anti-overload ability are that the wound of the present invention grinds motivation.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of large scale, low cost, power consumption are low, sharp
In rule, high performance wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator.The electric wheel that the present invention provides
Hub motor is used for driving electric motor car, possesses high torque (HT) and high efficiency, in the case of not increasing hub size, substantially increases wheel
The efficiency platform of hub motor and anti-overload ability.
A kind of wheel hub electric motor of electric vehicle stator that the present invention provides, its technical scheme is:
A kind of wheel hub electric motor of electric vehicle stator, wheel hub electric motor of electric vehicle is the wheel hub electric motor of electric vehicle of 10 cun, including fixed
Sub-iron core and support, described stator core is fixed on support, and described stator core external diameter is 205.01～212mm, stator ferrum
The width of rebate of core groove meets with stator core external diameter, stator core internal diameter, the yoke portion thickness of stator core, stator core slot number
Following relation:
The width of rebate of stator core slot=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (stator ferrum
The yoke portion thickness of core external diameter-stator core internal diameter-stator core)/stator core slot number
Wherein the span of α is 0.3～0.9, and the numerical value of the monolayer silicon steel plate thickness of α+stator core is 0.9～1.2.
A kind of wheel hub electric motor of electric vehicle stator that the present invention provides, also has a following attached technical scheme:
Wherein, the width of stator tooth is 5～8mm.
Wherein, the yoke portion thickness of stator core is 4～6mm, and stator core internal diameter is 159～176mm.
Wherein, the width of rebate of stator core slot is 2.0～3.5mm, the notch height of stator core slot be 0.8～
1.5mm。
Wherein, stator core external diameter is 205.5～210mm, and in stator core, the width of stator tooth is 6～7.5mm, stator
The yoke portion thickness of iron core is 4～5.5mm, and stator core internal diameter is 161～170mm, the width of rebate of stator core slot be 2～
3mm。
Wherein, the cross-sectional area >=85mm of stator core slot2。
Wherein, stator core includes the some stator pieces mutually laminated, and stator core is wound with copper cash winding.
Wherein, stator core being provided with spline groove, support is provided with ending tendon transfer；The support that shape is identical is tied by clinching
Stator core is fixed between two stands by structure, and carriage center is provided with installing hole, is equipped with axle sleeve in above-mentioned installing hole.
Present invention also offers a kind of wheel hub electric motor of electric vehicle, including stator and rotor assembly, stator is above-mentioned electronic
Wheel hub stator for motors.
Wherein, rotor assembly includes wheel rim, magnetic guiding loop and permanent magnet, and magnetic guiding loop is fixed on inside wheel rim, magnetic guiding loop inwall
If being provided with dry tablet permanent magnet.
Wherein, magnetic guiding loop internal diameter is 209.5～217mm, and the width of magnetic guiding loop is 35～60mm, and the thickness of magnetic guiding loop is 6
～9mm.
Wherein, the interval between inside magnetic guiding loop and outside stator core is 2.1～3.8mm.
Wherein, magnetic guiding loop internal diameter is 211～215mm, and the thickness of magnetic guiding loop is 6～8.5mm, with stator ferrum inside magnetic guiding loop
It is spaced apart 2.3～3.5mm between outside core.
Wherein, wheel hub motor also includes that motor shaft, limit lid and drum lid, limit lid and drum lid are fixed on magnetic guiding loop both sides.
Wherein, the groove number of stator core and the sheet number of permanent magnet are 48 permanent magnets of 54 groove, 46 permanent magnets of 51 groove, 51 grooves
56 permanent magnets, 60 permanent magnets of 54 groove, 52 permanent magnets of 48 groove, 44 permanent magnets of 48 groove, 40 permanent magnets of 45 groove or 45
50 permanent magnets of groove.
Compared with prior art, advantages of the present invention and good effect are:
Electrical power in the stator structure reasonably optimizing of present invention motor magnetic Circuit Design and magnetic power, it is to avoid because of motor
The phenomenon drastically generated heat occurs at short-time overload, it is therefore prevented that winding insulation layer is destroyed and asking that hall position sensor lost efficacy
Topic, adds the service life of motor.
The wheel hub electric motor of electric vehicle that the present invention provides is used for driving electric motor car, possesses high torque (HT) and high efficiency, and high torque (HT) can
To ensure that electric motor car is going up a slope or normally travelling in the case of heavy load, high efficiency motor contributes to reducing the use of electric motor car
Cost.Substantially increase efficiency platform and the anti-overload ability of wheel hub motor.Electric motor car is made to be more suitable at mountain area complex road condition row
Sail.The wheel hub electric motor of electric vehicle that the present invention provides when advancing at a high speed (more than 30km/h), stable performance, compare existing electronic
Car, can improve the stroke of more than 10%；When low speed is advanced (below 30km/h), electric motor car moment of torsion increases.
10 cun of wheel hub electric motor of electric vehicle that the present invention selects, make every effort to, on the basis of not increasing hub size, add further
Big stator core external diameter and magnetic guiding loop internal diameter, increase the driving arm of force of wheel hub motor, promotes the anti-overload ability of electric motor car.
By increasing stator core external diameter, make the thickness of permanent magnet reduce more than 13.6%, decrease the consumption of permanent magnet,
The raw-material consumption of stator structure can be saved simultaneously, reduce manufacturing cost.
Utilize that finite element software is close to the armature magnetic of wheel hub motor, output torque, gas length and efficiency etc. are analyzed,
Optimize the parameter such as the teeth portion width of stator core, yoke portion thickness；Compared with similar 10 cun of wheel hub electric motor of electric vehicle, this electric motor car
Wheel hub motor, stator slot area increases, and on the premise of coil turn is constant, the radical of copper cash can increase by 1～2, favorably
In reducing winding resistance, reduce current loss, improve electric efficiency；The biggest stator slot area is conducive to rule, and
And winding copper cash cross-sectional area is increased, motor temperature rise can be effectively reduced, improve and hold current-carrying ability；This is electronic
The stator core external diameter of wheel hub motor and magnetic guiding loop internal diameter are bigger, and the driving arm of force of motor lengthens the most accordingly, make the anti-of motor
Overload capacity is greatly improved.
By comparing it can be seen that the speed adjustable range of this wheel hub electric motor of electric vehicle, output moment of torsion, efficiency etc. be improved,
On the basis of not increasing manufacturing cost, the combination property of motor is obviously improved.
Accompanying drawing explanation
Fig. 1 is wheel hub electric motor of electric vehicle structural representation of the present invention.
Fig. 2 is wheel hub electric motor of electric vehicle stator explosive view of the present invention.
Fig. 3 is wheel hub electric motor of electric vehicle overall structure sectional view of the present invention.
Fig. 4 is wheel hub electric motor of electric vehicle stator core schematic diagram of the present invention.
Fig. 5 is structure for amplifying schematic diagram at A in Fig. 4.
Fig. 6 is wheel hub electric motor of electric vehicle of the present invention and existing 48 grooves and 54 sheave hub motor performance curve comparison diagrams.
In figure, 1, stator core；11, stator tooth；12, yoke portion；13, notch；14, stator core slot；15, spline groove；2、
Support；21, ending tendon transfer；3, axle sleeve；4, motor shaft；5, wheel rim；6, magnetic guiding loop；7, permanent magnet；8, winding；9, Bian Gai；10, drum
Lid；16, screw.A1, the width of stator tooth；A2, width of rebate；A3, yoke portion thickness；A4, notch height.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail, it should be pointed out that described reality
Execute example and be intended merely to facilitate the understanding of the present invention, and it is not played any restriction effect.
Embodiment 1
As shown in Figures 1 to 5, the wheel hub electric motor of electric vehicle stator of a kind of 10 cun of the present embodiment offer, including stator
Iron core 1 and support 2, stator core 1 is fixed on support 2, and stator core 1 is overrided to form by some stator pieces, on stator core 1
It is wound with copper cash winding 8.In the present embodiment, stator core 1 is fixed by two the above-mentioned supports 2 using shape identical by clinching
Between two stands 2, support 2 center is provided with installing hole, is equipped with axle sleeve 3 in installing hole.Stator core 1 is provided with spline groove
15, support 2 is provided with ending tendon transfer 21, above-mentioned spline groove 15 and ending tendon transfer 21 one_to_one corresponding, it is ensured that at electromagnetism during electric machine rotation
Under the effect of shearing force, stator will not concomitant rotation.In the present embodiment, the structure of stator can select 52 permanent magnet knots of 48 groove
Structure and 44 magnet structures of 48 grooves, it is preferable that what the present embodiment selected is 52 magnet structures of 48 groove, and stator core 1 exists
Uniform 48 stator tooths 11 of circumference, form 48 stator core slots 14 between each adjacent stators tooth 11.
Specifically, stator core 1 external diameter is 205.01～212mm, it is preferable that stator core 1 external diameter be 205.5～
210mm, the width of rebate A2 of stator core slot and stator core external diameter, stator core internal diameter, the yoke portion thickness A 3 of stator core,
Stator core slot number meets following relation:
Width of rebate A2=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (stator of stator core slot
The yoke portion thickness A 3 of iron core external diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the span of α is 0.3～0.9, it is preferable that the numerical value of the monolayer silicon steel plate thickness of α+stator core exists
Between 0.9～1.2, in the present embodiment, the numerical value of the monolayer silicon steel plate thickness of α+stator core takes 1, and wherein, α value takes 0.65, fixed
The numerical value of the monolayer silicon steel plate thickness of sub-iron core is 0.35, and stator performance is optimal.Special instruction, in the present invention, indication is " fixed
The numerical value of the monolayer silicon steel plate thickness of sub-iron core " be the dimensionless number in units of millimeter, the i.e. present invention take " stator core
The numerical value of monolayer silicon steel plate thickness " it is without unit amount, unit is not brought in formula and is calculated.The stator system that the present invention provides
Standby wheel hub electric motor of electric vehicle, possesses high torque (HT) and high efficiency, and high torque (HT) can ensure that electric motor car is going up a slope or heavy load feelings
Normally travelling under condition, high efficiency motor contributes to reducing the use cost of electric motor car.Substantially increase the efficiency of wheel hub motor
Platform and anti-overload ability.Make electric motor car be more suitable at mountain area complex road condition to travel.The wheel hub electric motor of electric vehicle that the present invention provides
When advancing at a high speed (more than 30km/h), stable performance, compare existing electric motor car, the stroke of more than 10% can be improved；?
When low speed is advanced (below 30km/h), electric motor car moment of torsion increases.It is particularly well-suited under complex road condition exercise.
10 cun of wheel hub electric motor of electric vehicle that the present invention selects, make every effort to, on the basis of not increasing hub size, add further
Big stator core external diameter and magnetic guiding loop internal diameter, increase the driving arm of force of wheel hub motor, promotes the anti-overload ability of electric motor car.Pass through
Increase stator core external diameter, make the thickness of permanent magnet reduce more than 13.6%, decrease the consumption of permanent magnet, reduce and be manufactured into
This, and manufacturing process is simple.By the improvement to stator structure parameter, the raw-material consumption of stator can be saved, significantly simultaneously
The production cost reducing stator.
As it is shown in figure 5, the width A1 of stator tooth is 5～8mm in stator core 1, the preferably width A1 of stator tooth be 6～
7.5mm, further preferably, the width A1 of stator tooth is 6.55mm.
Yoke portion 12 thickness A 3 of stator core 1 is 4～6mm, it is preferable that yoke portion 12 thickness A 3 of stator core 1 be 4～
5.5mm, further preferably, yoke portion 12 thickness A 3 of stator core 1 is 4.25mm.
Stator core 1 internal diameter is 159～176mm, it is preferable that stator core 1 internal diameter is 161～170mm, further preferably,
Stator core 1 internal diameter is 161.5mm.
The notch 13 width A2 of stator core slot is 2.0～3.5mm, it is preferable that the notch 13 width A2 of stator core slot is 2
～3mm, further preferably, the notch 13 width A2 of stator core slot is 2.3～2.6mm.In the present embodiment, stator core slot
Notch 13 width A2 refers to the air line distance between the outermost end of two stator tooth 11 external diameters.
The notch 13 height A4 of stator core 1 groove is 0.8～1.5mm, it is preferable that the notch 13 height A4 of stator core 1 groove
It is 0.9～1.3mm.The ratio of notch 13 height A4 and the notch 13 width A2 of stator core 1 groove of stator core 1 groove is 0.2
～0.7.The notch 13 of stator core 1 groove highly refers to vertical height.
Cross-sectional area >=the 85mm of stator core slot 142.The cross-sectional area of the present embodiment stator core slot 14 refer to as
The area of the cross section that Fig. 4 section is formed.
Electrical power in the stator structure reasonably optimizing of present invention motor magnetic Circuit Design and magnetic power, it is to avoid because of motor
The phenomenon drastically generated heat occurs at short-time overload, it is therefore prevented that winding insulation layer is destroyed and asking that hall position sensor lost efficacy
Topic, adds the service life of motor.
As depicted in figs. 1 and 2, present invention also offers a kind of wheel hub electric motor of electric vehicle, including stator, rotor assembly, electricity
Arbor 4, limit lid 9, drum lid 10 etc., stator is above-mentioned wheel hub electric motor of electric vehicle stator.
Wherein, rotor assembly includes wheel rim 5, magnetic guiding loop 6 and permanent magnet 7, and magnetic guiding loop 6 is fixed on inside wheel hub, if dry tablet
Permanent magnet 7 is pasted on magnetic guiding loop 6 inwall, and permanent magnet 7 is shaped as rectangular structure.Limit lid 9 and drum lid 10 are solid by screw 16
It is scheduled on magnetic guiding loop 6 both sides.It is equipped with motor in axle sleeve 3, uses flat key or interference fit to connect between the two.
Magnetic guiding loop 6 internal diameter is 209.5～217mm, it is preferable that magnetic guiding loop 6 internal diameter is 211～215mm.
The width of magnetic guiding loop 6 is 35～60mm.
The thickness of magnetic guiding loop 6 is 6～9mm, it is preferable that the thickness of magnetic guiding loop 6 is 6～8.5mm.
Interval between inside magnetic guiding loop 6 and outside stator core 1 is 2.1～3.8mm, it is preferable that with fixed inside magnetic guiding loop 6
It is spaced apart 2.3～3.5mm between outside sub-iron core 1.
In the present embodiment, the groove number of stator core 1 and the sheet number of permanent magnet 7 can also select 48 permanent magnets of 54 groove, 51
46 permanent magnets of groove, 56 permanent magnets of 51 groove, 60 permanent magnets of 54 groove, 40 permanent magnets of 45 groove or 50 permanent magnets of 45 grooves.
The selection of said structure, has reduction power consumption, reduces the technique effect of current fluctuation.
As shown in Figure 6, utilize that finite element software is close to the armature magnetic of wheel hub motor, output torque, gas length and efficiency
Etc. being analyzed, optimize the parameter such as the teeth portion width of stator core, yoke portion thickness；With similar 10 cun of wheel hub electric motor of electric vehicle phases
Ratio, this wheel hub electric motor of electric vehicle, stator slot area increases, and on the premise of coil turn is constant, the radical of copper cash can increase by 1
～2, be conducive to reducing winding resistance, reduce current loss, improve electric efficiency；The biggest stator slot area is favourable
In rule, and winding copper cash cross-sectional area is increased, motor temperature rise can be effectively reduced, improve and hold current-carrying energy
Power；The stator core external diameter of this wheel hub electric motor of electric vehicle and magnetic guiding loop internal diameter are bigger, and the driving arm of force of motor lengthens the most accordingly, makes
The anti-overload ability of motor is greatly improved.
By comparing it can be seen that the speed adjustable range of this wheel hub electric motor of electric vehicle, output moment of torsion, efficiency etc. be improved,
On the basis of not increasing manufacturing cost, the combination property of motor is obviously improved.
Embodiment 2
Technical scheme in the present embodiment and embodiment 1 technical scheme major part identical, the present embodiment is only to not phase
With part be described in detail, the present embodiment part same as in Example 1 repeats no more.
Stator core 1 external diameter is 205.01～212mm, it is preferable that stator core 1 external diameter is 206～210mm, stator core
The width of rebate A2 of groove is with stator core external diameter, stator core internal diameter, the yoke portion thickness A 3 of stator core, stator core slot number completely
Be enough to lower relation:
In the present embodiment, the structure of stator is 44 magnet structures of 48 groove.The width of rebate A2=of stator core slot (α+
The numerical value of the monolayer silicon steel plate thickness of stator core) × π × (yoke portion of stator core external diameter-stator core internal diameter-stator core
Thickness A 3)/stator core slot number.
Wherein the span of α is 0.3～0.9, it is preferable that the numerical value of the monolayer silicon steel plate thickness of α+stator core exists
Between 0.9～1.2, in the present embodiment, the numerical value of the monolayer silicon steel plate thickness of α+stator core takes 0.9, and wherein, α value takes 0.3,
The numerical value of the monolayer silicon steel plate thickness of stator core is 0.6, and stator performance is optimal.Special instruction, in the present invention, indication is " fixed
The numerical value of the monolayer silicon steel plate thickness of sub-iron core " be the dimensionless number in units of millimeter, the i.e. present invention take " stator core
The numerical value of monolayer silicon steel plate thickness " it is without unit amount, unit is not brought in formula and is calculated.
Embodiment 3
In the present embodiment, the structure of stator is 52 magnet structures of 48 groove.Technical scheme in the present embodiment and enforcement
Example 1 technical scheme major part identical, the part differed only is described in detail by the present embodiment, the present embodiment and embodiment 1
Identical part repeats no more.
Stator core 1 external diameter is 205.01～212mm, it is preferable that stator core 1 external diameter is 205.5～211mm, stator ferrum
The width of rebate A2 of core groove and stator core external diameter, stator core internal diameter, the yoke portion thickness A 3 of stator core, stator core slot number
Meet following relation:
Width of rebate A2=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (stator of stator core slot
The yoke portion thickness A 3 of iron core external diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the span of α is 0.3～0.9, it is preferable that the numerical value of the monolayer silicon steel plate thickness of α+stator core exists
Between 0.9～1.2, in the present embodiment, the numerical value of the monolayer silicon steel plate thickness of α+stator core takes 1.2, and wherein, α value takes 0.85,
The numerical value of the monolayer silicon steel plate thickness of stator core is 0.35, and stator performance is optimal.Special instruction, indication in the present invention
" numerical value of the monolayer silicon steel plate thickness of stator core " is " the stator ferrum that the dimensionless number in units of millimeter, the i.e. present invention take
The numerical value of the monolayer silicon steel plate thickness of core " it is without unit amount, unit is not brought in formula and is calculated.
Embodiment 4
Technical scheme in the present embodiment and embodiment 1 technical scheme major part identical, the present embodiment is only to not phase
With part be described in detail, the present embodiment part same as in Example 1 repeats no more.
In the present embodiment, the structure of stator is 44 magnet structures of 48 groove.Stator core 1 external diameter be 205.01～
212mm, it is preferable that stator core 1 external diameter is 205.5～209mm, the width of rebate A2 of stator core slot and stator core external diameter,
Stator core internal diameter, the yoke portion thickness A 3 of stator core, stator core slot number meet following relation:
Width of rebate A2=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (stator of stator core slot
The yoke portion thickness A 3 of iron core external diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the span of α is 0.3～0.9, it is preferable that the numerical value of the monolayer silicon steel plate thickness of α+stator core exists
Between 0.9～1.2, in the present embodiment, the numerical value of the monolayer silicon steel plate thickness of α+stator core takes 0.96, and wherein, α value takes
0.61, the numerical value of the monolayer silicon steel plate thickness of stator core is 0.35, and stator performance is optimal.Special instruction, in the present invention
Indication " numerical value of the monolayer silicon steel plate thickness of stator core " be the dimensionless number in units of millimeter, the i.e. present invention take " fixed
The numerical value of the monolayer silicon steel plate thickness of sub-iron core " it is without unit amount, unit is not brought in formula and is calculated.
Embodiment 5
Technical scheme in the present embodiment and embodiment 1 technical scheme major part identical, the present embodiment is only to not phase
With part be described in detail, the present embodiment part same as in Example 1 repeats no more.
In the present embodiment, the structure of stator is 44 magnet structures of 48 groove.Stator core 1 external diameter be 205.01～
212mm, it is preferable that stator core 1 external diameter is 205.5～210mm, the width of rebate A2 of stator core slot and stator core external diameter,
Stator core internal diameter, the yoke portion thickness A 3 of stator core, stator core slot number meet following relation:
Width of rebate A2=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (stator of stator core slot
The yoke portion thickness A 3 of iron core external diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the span of α is 0.3～0.9, it is preferable that the numerical value of the monolayer silicon steel plate thickness of α+stator core exists
Between 0.9～1.2, in the present embodiment, the numerical value of the monolayer silicon steel plate thickness of α+stator core takes 1.2, and wherein, α value takes 0.9,
The numerical value of the monolayer silicon steel plate thickness of stator core is 0.3, and stator performance is optimal.Special instruction, in the present invention, indication is " fixed
The numerical value of the monolayer silicon steel plate thickness of sub-iron core " be the dimensionless number in units of millimeter, the i.e. present invention take " stator core
The numerical value of monolayer silicon steel plate thickness " it is without unit amount, unit is not brought in formula and is calculated.
Embodiment 2-5 can reach the technique effect that embodiment 1 is recorded, and repeats no more.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected
Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (15)
1. a wheel hub electric motor of electric vehicle stator, described wheel hub electric motor of electric vehicle is the wheel hub electric motor of electric vehicle of 10 cun, including
Stator core and support, described stator core is fixed on support, it is characterised in that: described stator core external diameter be 205.01～
212mm, the width of rebate of stator core slot and stator core external diameter, stator core internal diameter, the yoke portion thickness of stator core, stator
Iron core slot number meets following relation:
The width of rebate of stator core slot=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (outside stator core
The yoke portion thickness of footpath-stator core internal diameter-stator core)/stator core slot number
Wherein the span of α is 0.3～0.9, and the numerical value of the monolayer silicon steel plate thickness of α+stator core is 0.9～1.2.
Wheel hub electric motor of electric vehicle stator the most according to claim 1, it is characterised in that: the width of stator tooth be 5～
8mm。
Wheel hub electric motor of electric vehicle stator the most according to claim 1, it is characterised in that: the yoke portion of described stator core is thick
Degree is 4～6mm, and stator core internal diameter is 159～176mm.
4. according to the arbitrary described wheel hub electric motor of electric vehicle stator of claims 1 to 3, it is characterised in that: described stator core
The width of rebate of groove is 2.0～3.5mm, and the notch height of stator core slot is 0.8～1.5mm.
Wheel hub electric motor of electric vehicle stator the most according to claim 1, it is characterised in that: stator core external diameter is 205.5
～210mm, the width of stator tooth is 6～7.5mm, and the yoke portion thickness of stator core is 4～5.5mm, and stator core internal diameter is 161
～170mm, the width of rebate of stator core slot is 2～3mm.
6. according to the arbitrary described wheel hub electric motor of electric vehicle stator of claim 1,2,3 or 5, it is characterised in that: stator core
Cross-sectional area >=the 85mm of groove2。
Wheel hub electric motor of electric vehicle stator the most according to claim 6, it is characterised in that: stator core includes mutually laminating
Some stator pieces, stator core is wound with copper cash winding.
Wheel hub electric motor of electric vehicle stator the most according to claim 6, it is characterised in that: it is provided with on described stator core
Spline groove, described support is provided with ending tendon transfer；Stator core is fixed on two by clinching structure by the support that shape is identical
Between support, carriage center is provided with installing hole, is equipped with axle sleeve in installing hole.
9. a wheel hub electric motor of electric vehicle, it is characterised in that: include that stator and rotor assembly, described stator are claim 1～8
Wheel hub electric motor of electric vehicle stator described in any one.
A kind of wheel hub electric motor of electric vehicle the most according to claim 9, it is characterised in that: described rotor assembly include wheel rim,
Magnetic guiding loop and permanent magnet, described magnetic guiding loop is fixed on inside wheel rim, if described magnetic guiding loop inwall is provided with dry tablet permanent magnet.
11. a kind of wheel hub electric motor of electric vehicle according to claim 10, it is characterised in that: described magnetic guiding loop internal diameter is
209.5～217mm, the width of described magnetic guiding loop is 35～60mm, and the thickness of described magnetic guiding loop is 6～9mm.
12. a kind of wheel hub electric motor of electric vehicle according to claim 10, it is characterised in that: inside magnetic guiding loop and stator core
Interval between Wai Ce is 2.1～3.8mm.
13. a kind of wheel hub electric motor of electric vehicle according to claim 10, it is characterised in that: described magnetic guiding loop internal diameter is 211
～215mm, the thickness of described magnetic guiding loop is 6～8.5mm, inside magnetic guiding loop and outside stator core between be spaced apart 2.3～
3.5mm。
14. a kind of wheel hub electric motor of electric vehicle according to claim 9, it is characterised in that: described wheel hub motor also includes electricity
Arbor, limit lid and drum lid, limit lid and drum lid are fixed on magnetic guiding loop both sides.
15. a kind of wheel hub electric motor of electric vehicle according to claim 9, it is characterised in that: the groove number of stator core and permanent magnetism
The sheet number of body is 48 permanent magnets of 54 groove, 46 permanent magnets of 51 groove, 56 permanent magnets of 51 groove, 60 permanent magnets of 54 groove, 48 grooves 52
Sheet permanent magnet, 44 permanent magnets of 48 groove, 40 permanent magnets of 45 groove or 50 permanent magnets of 45 grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610659485.4A CN106208437B (en) | 2016-08-12 | 2016-08-12 | A kind of wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610659485.4A CN106208437B (en) | 2016-08-12 | 2016-08-12 | A kind of wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106208437A true CN106208437A (en) | 2016-12-07 |
| CN106208437B CN106208437B (en) | 2018-07-13 |
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|---|---|---|---|
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| CN106787322A (en) * | 2017-01-04 | 2017-05-31 | 温岭市九洲电机制造有限公司 | A kind of wheel hub electric motor of electric vehicle |
| CN107248803A (en) * | 2017-08-08 | 2017-10-13 | 常州市裕成富通电机有限公司 | 8 cun of wheel hub motors and electric car |
| CN107565718A (en) * | 2017-09-05 | 2018-01-09 | 江苏航天动力机电有限公司 | New-energy automobile wheel hub motor stator punching and its processing method |
| CN109004781A (en) * | 2018-07-09 | 2018-12-14 | 无锡赛盈动力科技有限公司 | A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application |
| CN110474470A (en) * | 2019-07-10 | 2019-11-19 | 中车永济电机有限公司 | Low-loss, low noise the totally-enclosed self-ventilation pulling motor of 100% low floor vehicle |
| CN114977554A (en) * | 2022-06-09 | 2022-08-30 | 湖州太平微特电机有限公司 | External rotor motor and manufacturing method |
| WO2023190784A1 (en) * | 2022-03-31 | 2023-10-05 | ニデック株式会社 | Motor and vehicle |
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| CN106787322A (en) * | 2017-01-04 | 2017-05-31 | 温岭市九洲电机制造有限公司 | A kind of wheel hub electric motor of electric vehicle |
| CN107248803A (en) * | 2017-08-08 | 2017-10-13 | 常州市裕成富通电机有限公司 | 8 cun of wheel hub motors and electric car |
| CN107565718A (en) * | 2017-09-05 | 2018-01-09 | 江苏航天动力机电有限公司 | New-energy automobile wheel hub motor stator punching and its processing method |
| CN109004781A (en) * | 2018-07-09 | 2018-12-14 | 无锡赛盈动力科技有限公司 | A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application |
| CN110474470A (en) * | 2019-07-10 | 2019-11-19 | 中车永济电机有限公司 | Low-loss, low noise the totally-enclosed self-ventilation pulling motor of 100% low floor vehicle |
| CN110474470B (en) * | 2019-07-10 | 2021-08-03 | 中车永济电机有限公司 | Low-loss low-noise totally-enclosed self-ventilation traction motor for 100% low-floor vehicle |
| WO2023190784A1 (en) * | 2022-03-31 | 2023-10-05 | ニデック株式会社 | Motor and vehicle |
| CN114977554A (en) * | 2022-06-09 | 2022-08-30 | 湖州太平微特电机有限公司 | External rotor motor and manufacturing method |
| CN114977554B (en) * | 2022-06-09 | 2023-06-23 | 湖州太平微特电机有限公司 | Outer rotor motor and manufacturing method |
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|---|---|
| CN106208437B (en) | 2018-07-13 |
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Denomination of invention: Stator for electric car hub motor and motor containing the same Effective date of registration: 20200117 Granted publication date: 20180713 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd Taizhou Wenling branch Pledgor: Wenling Nine Continent Motor Manufacturing Co., Ltd. Registration number: Y2020330000045 |
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Address after: 3 Wanjin Road, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Jiuzhou New Energy Technology Co.,Ltd. Address before: 317523 air compressor industrial park, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province Patentee before: WENLING JIUZHOU ELECTROMECHANICAL Co.,Ltd. |
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Date of cancellation: 20220224 Granted publication date: 20180713 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch Pledgor: WENLING JIUZHOU ELECTROMECHANICAL Co.,Ltd. Registration number: Y2020330000045 |