CN106208437B - 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
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- CN106208437B CN106208437B CN201610659485.4A CN201610659485A CN106208437B CN 106208437 B CN106208437 B CN 106208437B CN 201610659485 A CN201610659485 A CN 201610659485A CN 106208437 B CN106208437 B CN 106208437B
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- electric vehicle
- slot
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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
A kind of motor the present invention relates to wheel hub electric motor of electric vehicle stator and containing this kind of stator.A kind of wheel hub electric motor of electric vehicle stator of the present invention, including stator core and holder, stator core is fixed on holder, stator core outer diameter is 205.01~212mm, and yoke portion radial width, the stator core slot number of the width of rebate and stator core outer diameter, stator core internal diameter, stator core of stator core slot meet following relationship：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 radial width of stator core outer diameter stator core internal diameter stator core)/stator core slot number, the wherein value range of α is 0.3~0.9.Advantage is：Electrical power and magnetic power in the stator structure reasonably optimizing motor magnetic Circuit Design of the present invention, it avoids because motor is the phenomenon that short-time overload appearance is drastically generated heat, it prevents winding insulation layer to be destroyed the problem of failing with hall position sensor, increases the service life of motor.
Description
Technical field
The present invention relates to vehicle technology field, more particularly to a kind of wheel hub electric motor of electric vehicle stator and fixed containing this kind
The motor of son.
Background technology
Electric vehicle due to its travel it is convenient, be easy to stop, it is environmentally protective the advantages that favored by consumers in general.Motor
As the core component of electric vehicle, performance, efficiency, reliability etc. influence electric vehicle very big, high performance driving motor pair
The realization of whole electric vehicle function has decisive role.
Currently, motor of electric motor car is mostly wheel hub motor, the critical piece inside wheel hub motor be include radial on inner edge
The rotor and stator of multiple permanent magnets are uniformly installed, stator is mounted on hind axle, outer spacer cartridge rotor, the outer rim of rotor
With wheel hub integrally connected, the alternating polarities of multiple permanent magnets is arranged, the outer rim radial equipartition of stator make it is multiple for coiling around
The salient pole of group is pole slot between each two adjacent salient pole.
The dimensional structure of wheel hub motor stator determines the size of magnetic guiding loop dimensional structure, and stator structure and magnetic guiding loop knot
Structure decides the driving arm of force size of wheel hub motor to a certain extent, and determines the anti-overload ability of motor.With substance
The extensive raising of life, more and more peasants select electric vehicle as walking-replacing tool, and electric vehicle cost and electric vehicle are in complexity
Road on stability be peasant select electric vehicle major consideration.There is electricity in conventional wheel hub electric motor of electric vehicle
The low problem of machine transfer efficiency, and under complex road condition (such as road), electric vehicle will appear 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 to pass through increase at present
Hub size promotes anti-overload ability to increase stator dimensions, but after being the increase in hub size necessarily leads to electric vehicle structure
Change, manufacturing cost increase.Therefore, in the case where not increasing hub size and manufacturing cost, wheel hub electricity how is improved
The efficiency and anti-overload ability of machine are that the wound of the present invention grinds motivation.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of large scale, low cost, power consumption are low, sharp
In embedding, high performance wheel hub electric motor of electric vehicle stator and motor containing this kind of stator.Electric wheel provided by the invention
Hub motor has high torque (HT) and high efficiency, in the case where not increasing hub size, substantially increases wheel for driving electric vehicle
The efficiency platform and anti-overload ability of hub motor.
A kind of wheel hub electric motor of electric vehicle stator provided by the invention, technical solution are：
A kind of wheel hub electric motor of electric vehicle stator, the wheel hub electric motor of electric vehicle that wheel hub electric motor of electric vehicle is 10 cun, including it is fixed
Sub- iron core and holder, the stator core are fixed on holder, and the stator core outer diameter is 205.01~212mm, stator iron
Yoke portion radial width, the stator core slot number of the width of rebate of core slot and stator core outer diameter, stator core internal diameter, stator core
Meet following relationship：
The width of rebate of stator core slot=(numerical value of the monolayer silicon steel plate thickness of α+stator core) × π × (stator iron
The yoke portion radial width of core outer diameter-stator core internal diameter-stator core)/stator core slot number
It is 0.9~1.2 that wherein the value range of α, which is the numerical value of the monolayer silicon steel plate thickness of 0.3~0.9, α+stator core,.
A kind of wheel hub electric motor of electric vehicle stator provided by the invention also has following attached technical scheme：
Wherein, the width of stator tooth is 5~8mm.
Wherein, the yoke portion radial width 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 is 0.8~
1.5mm。
Wherein, stator core outer diameter is 205.5~210mm, and the width of stator tooth is 6~7.5mm, stator in stator core
The yoke portion radial width of iron core is 4~5.5mm, and stator core internal diameter is 161~170mm, and the width of rebate of stator core slot is 2
~3mm.
Wherein, cross-sectional area >=85mm of stator core slot2。
Wherein, stator core includes several stator pieces mutually laminated, and copper wire winding is wound on stator core.
Wherein, rotation stop groove is provided on stator core, holder is equipped with ending tendon transfer；The identical holder of shape passes through clinching knot
Between stator core is fixed on two stands by structure, carriage center is equipped with mounting hole, and axle sleeve is equipped in above-mentioned mounting hole.
The present invention also provides 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 the inside of wheel rim, magnetic guiding loop inner wall
If being provided with dry plate 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 on the inside of magnetic guiding loop between stator core outside 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, magnetic guiding loop inside and stator iron
It is divided into 2.3~3.5mm between on the outside of core.
Wherein, wheel hub motor further includes motor shaft, side lid and drum lid, and side lid and drum lid are fixed on magnetic guiding loop both sides.
Wherein, the slot number of stator core and the piece number of permanent magnet are 54 slot, 48 permanent magnets, 51 slot, 46 permanent magnets, 51 slots
56 permanent magnets, 54 slot, 60 permanent magnets, 48 slot, 52 permanent magnets, 48 slot, 44 permanent magnets, 45 slot, 40 permanent magnets or 45
50 permanent magnets of slot.
Compared with prior art, the advantages and positive effects of the present invention are：
Electrical power and magnetic power in the stator structure reasonably optimizing motor magnetic Circuit Design of the present invention, avoid because of motor
The phenomenon that short-time overload appearance is drastically generated heat, it is therefore prevented that winding insulation layer is destroyed asks with what hall position sensor failed
Topic, increases the service life of motor.
Wheel hub electric motor of electric vehicle provided by the invention has high torque (HT) and high efficiency, high torque (HT) can for driving electric vehicle
To ensure electric vehicle in upward slope or heavy load normally travel, efficient motor helps to reduce the use of electric vehicle
Cost.Substantially increase the efficiency platform and anti-overload ability of wheel hub motor.Electric vehicle is set to be more suitable in mountain area complex road condition row
It sails.Wheel hub electric motor of electric vehicle provided by the invention when high speed is advanced (30km/h or more), stablize by performance, compared to existing electronic
Vehicle can improve 10% or more stroke；When low speed is advanced (30km/h or less), electric vehicle torque increases.
10 cun of wheel hub electric motor of electric vehicle that the present invention selects, make every effort on the basis of not increasing hub size, further add
Big stator core outer diameter and magnetic guiding loop internal diameter, increase the driving arm of force of wheel hub motor, promote the anti-overload ability of electric vehicle.
By increase stator core outer diameter, so that the thickness of permanent magnet is reduced 13.6% or more, reduces the dosage of permanent magnet,
The dosage that stator structure raw material can be saved simultaneously, reduces manufacturing cost.
Armature flux density, output torque, gas length and the efficiency etc. of wheel hub motor are analyzed using finite element software,
Optimize the parameters such as teeth portion width, the yoke portion thickness of stator core；Compared with similar 10 cun of wheel hub electric motor of electric vehicle, this electric vehicle
Wheel hub motor, stator groove area increase, and under the premise of coil turn is constant, the radical of copper wire can increase by 1~2, favorably
In reducing winding resistance, current loss is reduced, improves electric efficiency；Stator groove area larger simultaneously is conducive to embedding, and
And winding copper wire cross-sectional area is increased, it can be effectively reduced motor temperature rise, improve and hold current-carrying ability；This is electronic
The stator core outer diameter and magnetic guiding loop internal diameter bigger of wheel hub motor, the driving arm of force of motor also accordingly lengthen, and make the anti-of motor
Overload capacity greatly improves.
It is improved by comparing speed adjustable range, output torque, the efficiency etc. that can be seen that this wheel hub electric motor of electric vehicle,
On the basis of not increasing manufacturing cost, the comprehensive performance of motor is obviously improved.
Description of the drawings
Fig. 1 is wheel hub electric motor of electric vehicle structural schematic diagram 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 enlarged structure schematic diagram at A in Fig. 4.
Fig. 6 is wheel hub electric motor of electric vehicle of the present invention figure compared with existing 48 slot and 54 sheave hub motor performance curves.
In figure, 1, stator core；11, stator tooth；12, yoke portion；13, notch；14, stator core slot；15, rotation stop groove；2、
Holder；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.The width of A1, stator tooth；A2, width of rebate；A3, yoke portion thickness；A4, notch height.
Specific implementation mode
The present invention is described in detail below in conjunction with embodiment and attached drawing, it should be pointed out that described reality
It applies example and is intended merely to facilitate the understanding of the present invention, and do not play any restriction effect to it.
Embodiment 1
As shown in Figures 1 to 5, a kind of 10 cun of wheel hub electric motor of electric vehicle stator provided in this embodiment, including stator
Iron core 1 and holder 2, stator core 1 are fixed on holder 2, and stator core 1 is overrided to form by several stator pieces, on stator core 1
It is wound with copper wire winding 8.In the present embodiment, stator core 1 is fixed by clinching using the identical two above-mentioned holders 2 of shape
Between two stands 2,2 center of holder is equipped with mounting hole, and axle sleeve 3 is equipped in mounting hole.Stator core 1 is equipped with rotation stop groove
15, holder 2 is equipped with ending tendon transfer 21, and above-mentioned rotation stop groove 15 and ending tendon transfer 21 correspond, it is ensured that in electromagnetism when motor rotates
Stator will not rotate therewith under the action of shearing force.In the present embodiment, the structure of stator can select 48 slot, 52 permanent magnet knots
44 magnet structures of structure and 48 slots, it is preferable that the present embodiment selection is 48 slot, 52 magnet structures, and stator core 1 exists
It is circumferential to be evenly distributed with 48 stator tooths 11, form 48 stator core slots 14 between each adjacent stators tooth 11.
Specifically, 1 outer diameter of stator core be 205.01~212mm, it is preferable that 1 outer diameter of stator core be 205.5~
210mm, the width of rebate A2 of stator core slot and the yoke portion of stator core outer diameter, stator core internal diameter, stator core are radially-wide
Degree A3, stator core slot number meet following relationship：
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 radial width A3 of iron core outer diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the value range 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, wherein α values take 0.65, fixed
The numerical value of the monolayer silicon steel plate thickness of sub- iron core is 0.35, and stator performance is best.It illustrates, it is signified in the present invention " fixed
The numerical value of the monolayer silicon steel plate thickness of sub- iron core " is dimensionless number in millimeters, i.e., the present invention take " stator core
The numerical value of monolayer silicon steel plate thickness " is no unit amount, and unit is not brought into formula and calculated.Stator system provided by the invention
Standby wheel hub electric motor of electric vehicle, has high torque (HT) and high efficiency, and high torque (HT) can ensure electric vehicle in upward slope or heavy load feelings
Normally travel under condition, efficient motor help to reduce the use cost of electric vehicle.Substantially increase the efficiency of wheel hub motor
Platform and anti-overload ability.Electric vehicle is set to be more suitable for travelling in mountain area complex road condition.Wheel hub electric motor of electric vehicle provided by the invention
When high speed is advanced (30km/h or more), performance is stablized, and compares existing electric vehicle, can improve 10% or more stroke；
When low speed is advanced (30km/h or less), electric vehicle torque increases.Especially suitable for being exercised under complex road condition.
10 cun of wheel hub electric motor of electric vehicle that the present invention selects, make every effort on the basis of not increasing hub size, further add
Big stator core outer diameter and magnetic guiding loop internal diameter, increase the driving arm of force of wheel hub motor, promote the anti-overload ability of electric vehicle.Pass through
Increase stator core outer diameter, so that the thickness of permanent magnet is reduced 13.6% or more, reduce the dosage of permanent magnet, reduce and be manufactured into
This, and manufacturing process is simple.By the improvement to stator structure parameter, while the dosage of stator raw material can be saved, significantly
The production cost for reducing stator.
As shown in figure 5, in stator core 1 stator tooth width A1 be 5~8mm, the preferably width A1 of stator tooth be 6~
7.5mm, further preferably, the width A1 of stator tooth is 6.55mm.
12 thickness A 3 of yoke portion of stator core 1 be 4~6mm, it is preferable that 12 thickness A 3 of yoke portion of stator core 1 be 4~
5.5mm, further preferably, 12 thickness A 3 of yoke portion of stator core 1 is 4.25mm.
1 internal diameter of stator core is 159~176mm, it is preferable that 1 internal diameter of stator core is 161~170mm, further preferably,
1 internal diameter of stator core is 161.5mm.
The 13 width A2 of notch of stator core slot is 2.0~3.5mm, it is preferable that the 13 width A2 of notch of stator core slot is 2
~3mm, further preferably, the 13 width A2 of notch of stator core slot is 2.3~2.6mm.In the present embodiment, stator core slot
13 width A2 of notch refers to the air line distance between the outermost end of two 11 outer diameters of stator tooth.
The 13 height A4 of notch of 1 slot of stator core is 0.8~1.5mm, it is preferable that the 13 height A4 of notch of 1 slot of stator core
For 0.9~1.3mm.The ratio of the 13 height A4 of notch of 1 slot of the stator core and 13 width A2 of notch of 1 slot of stator core is 0.2
~0.7.13 height of notch of 1 slot of stator core refers to vertical height.
Cross-sectional area >=85mm of stator core slot 142.The cross-sectional area of the present embodiment stator core slot 14 refer to as
The area for the cross section that Fig. 4 sections are formed.
Electrical power and magnetic power in the stator structure reasonably optimizing motor magnetic Circuit Design of the present invention, avoid because of motor
The phenomenon that short-time overload appearance is drastically generated heat, it is therefore prevented that winding insulation layer is destroyed asks with what hall position sensor failed
Topic, increases the service life of motor.
As depicted in figs. 1 and 2, the present invention also provides a kind of wheel hub electric motor of electric vehicle, including stator, rotor assembly, electricity
Arbor 4, side lid 9, drum lid 10 etc., stator are above-mentioned wheel hub electric motor of electric vehicle stators.
Wherein, rotor assembly includes wheel rim 5, magnetic guiding loop 6 and permanent magnet 7, and magnetic guiding loop 6 is fixed on the inside of wheel hub, if dry plate
Permanent magnet 7 is pasted on 6 inner wall of magnetic guiding loop, and 7 shape of permanent magnet is rectangular parallelepiped structure.Side lid 9 and drum lid 10 are solid by screw 16
It is scheduled on 6 both sides of magnetic guiding loop.It is equipped with motor in axle sleeve 3, uses flat key or interference fit connection between the two.
6 internal diameter of magnetic guiding loop is 209.5~217mm, it is preferable that 6 internal diameter of magnetic guiding loop 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 1 outside of 6 inside of magnetic guiding loop and stator core is 2.1~3.8mm, it is preferable that on the inside of magnetic guiding loop 6 and fixed
It is divided into 2.3~3.5mm between 1 outside of sub- iron core.
In the present embodiment, the slot number of stator core 1 and the piece number of permanent magnet 7 are also an option that 54 slot 48 permanent magnets, 51
50 46 permanent magnets of slot, 51 slot, 56 permanent magnets, 54 slot, 60 permanent magnets, 45 slot, 40 permanent magnets or 45 slots permanent magnets.
The selection of above structure has and reduces electricity consumption, reduces the technique effect of current fluctuation.
As shown in fig. 6, using finite element software to armature flux density, output torque, gas length and the efficiency of wheel hub motor
Etc. being analyzed, the parameters such as teeth portion width, the yoke portion thickness of stator core are optimized；With similar 10 cun of wheel hub electric motor of electric vehicle phases
Than this wheel hub electric motor of electric vehicle, stator groove area increases, and under the premise of coil turn is constant, the radical of copper wire can increase by 1
~2, is conducive to reduce winding resistance, reduces current loss, improve electric efficiency；Stator groove area larger simultaneously is advantageous
In embedding, and winding copper wire cross-sectional area is increased, motor temperature rise can be effectively reduced, improve and hold current-carrying energy
Power；The stator core outer diameter and magnetic guiding loop internal diameter bigger of this wheel hub electric motor of electric vehicle, the driving arm of force of motor also accordingly lengthen, make
The anti-overload ability of motor greatly improves.
It is improved by comparing speed adjustable range, output torque, the efficiency etc. that can be seen that this wheel hub electric motor of electric vehicle,
On the basis of not increasing manufacturing cost, the comprehensive performance of motor is obviously improved.
Embodiment 2
Technical solution in the present embodiment is largely identical as the technical solution of embodiment 1, and the present embodiment is only to not phase
Same part is described in detail, and the present embodiment part same as Example 1 repeats no more.
1 outer diameter of stator core is 205.01~212mm, it is preferable that 1 outer diameter of stator core is 206~210mm, stator core
The width of rebate A2 of slot and stator core outer diameter, yoke portion radial width A3, the stator core slot of stator core internal diameter, stator core
Number meets following relationship：
In the present embodiment, the structure of stator is 48 slot, 44 magnet structures.Stator core slot width of rebate A2=(α+
The numerical value of the monolayer silicon steel plate thickness of stator core) × π × (the yoke portion of stator core outer diameter-stator core internal diameter-stator core
Radial width A3)/stator core slot number.
Wherein the value range 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, wherein and α values take 0.3,
The numerical value of the monolayer silicon steel plate thickness of stator core is 0.6, and stator performance is best.It illustrates, it is signified in the present invention " fixed
The numerical value of the monolayer silicon steel plate thickness of sub- iron core " is dimensionless number in millimeters, i.e., the present invention take " stator core
The numerical value of monolayer silicon steel plate thickness " is no unit amount, and unit is not brought into formula and calculated.
Embodiment 3
In the present embodiment, the structure of stator is 48 slot, 52 magnet structures.Technical solution in the present embodiment and implementation
The technical solution of example 1 is largely identical, and the present embodiment is only described in detail different part, the present embodiment and embodiment 1
Identical part repeats no more.
1 outer diameter of stator core is 205.01~212mm, it is preferable that 1 outer diameter of stator core is 205.5~211mm, stator iron
The width of rebate A2 of core slot and stator core outer diameter, yoke portion radial width A3, the stator core of stator core internal diameter, stator core
Slot number meets following relationship：
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 radial width A3 of iron core outer diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the value range 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, wherein and α values take 0.85,
The numerical value of the monolayer silicon steel plate thickness of stator core is 0.35, and stator performance is best.It illustrates, it is signified in the present invention
" numerical value of the monolayer silicon steel plate thickness of stator core " is dimensionless number in millimeters, i.e., " the stator iron that the present invention takes
The numerical value of the monolayer silicon steel plate thickness of core " is no unit amount, and unit is not brought into formula and calculated.
Embodiment 4
Technical solution in the present embodiment is largely identical as the technical solution of embodiment 1, and the present embodiment is only to not phase
Same part is described in detail, and the present embodiment part same as Example 1 repeats no more.
In the present embodiment, the structure of stator is 48 slot, 44 magnet structures.1 outer diameter of stator core be 205.01~
212mm, it is preferable that 1 outer diameter of stator core is 205.5~209mm, the width of rebate A2 of stator core slot and stator core outer diameter,
Stator core internal diameter, the yoke portion radial width A3 of stator core, stator core slot number meet following relationship：
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 radial width A3 of iron core outer diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the value range 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, wherein α values take
0.61, the numerical value of the monolayer silicon steel plate thickness of stator core is 0.35, and stator performance is best.It illustrates, in the present invention
Signified " numerical value of the monolayer silicon steel plate thickness of stator core " is dimensionless number in millimeters, i.e., the present invention takes " fixed
The numerical value of the monolayer silicon steel plate thickness of sub- iron core " is no unit amount, and unit is not brought into formula and calculated.
Embodiment 5
Technical solution in the present embodiment is largely identical as the technical solution of embodiment 1, and the present embodiment is only to not phase
Same part is described in detail, and the present embodiment part same as Example 1 repeats no more.
In the present embodiment, the structure of stator is 48 slot, 44 magnet structures.1 outer diameter of stator core be 205.01~
212mm, it is preferable that 1 outer diameter of stator core is 205.5~210mm, the width of rebate A2 of stator core slot and stator core outer diameter,
Stator core internal diameter, the yoke portion radial width A3 of stator core, stator core slot number meet following relationship：
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 radial width A3 of iron core outer diameter-stator core internal diameter-stator core)/stator core slot number.
Wherein the value range 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, wherein and α values take 0.9,
The numerical value of the monolayer silicon steel plate thickness of stator core is 0.3, and stator performance is best.It illustrates, it is signified in the present invention " fixed
The numerical value of the monolayer silicon steel plate thickness of sub- iron core " is dimensionless number in millimeters, i.e., the present invention take " stator core
The numerical value of monolayer silicon steel plate thickness " is no unit amount, and unit is not brought into formula and calculated.
Embodiment 2-5 can reach the technique effect of the record of embodiment 1, repeat no more.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as understanding, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (15)
1. a kind of wheel hub electric motor of electric vehicle stator, the wheel hub electric motor of electric vehicle that the wheel hub electric motor of electric vehicle is 10 cun, including
Stator core and holder, the stator core are fixed on holder, it is characterised in that：The stator core outer diameter be 205.01~
212mm, the width of rebate of stator core slot and stator core outer diameter, stator core internal diameter, stator core yoke portion radial width,
Stator core slot number meets following relationship：
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 radial width of diameter-stator core internal diameter-stator core)/stator core slot number
It is 0.9~1.2 that wherein the value range of α, which is the numerical value of the monolayer silicon steel plate thickness of 0.3~0.9, α+stator core,；
The numerical value of the monolayer silicon steel plate thickness of stator core, for dimensionless number in millimeters.
2. wheel hub electric motor of electric vehicle stator according to claim 1, it is characterised in that：The width of stator tooth be 5~
8mm。
3. wheel hub electric motor of electric vehicle stator according to claim 1, it is characterised in that：The yoke portion diameter of the stator core
It is 4~6mm to width, stator core internal diameter is 159~176mm.
4. according to any wheel hub electric motor of electric vehicle stator of claims 1 to 3, it is characterised in that：The stator core
The width of rebate of slot is 2.0~3.5mm, and the notch height of stator core slot is 0.8~1.5mm.
5. wheel hub electric motor of electric vehicle stator according to claim 1, it is characterised in that：Stator core outer diameter is 205.5
The width of~210mm, stator tooth are 6~7.5mm, and the yoke portion radial width of stator core is 4~5.5mm, stator core internal diameter
Width of rebate for 161~170mm, stator core slot is 2~3mm.
6. according to any wheel hub electric motor of electric vehicle stator in claim 1,2,3 or 5, it is characterised in that：Stator core
Cross-sectional area >=85mm of slot2。
7. wheel hub electric motor of electric vehicle stator according to claim 6, it is characterised in that：Stator core includes mutually laminating
Several stator pieces, be wound with copper wire winding on stator core.
8. wheel hub electric motor of electric vehicle stator according to claim 6, it is characterised in that：It is provided on the stator core
Rotation stop groove is provided with ending tendon transfer on the holder；Stator core is fixed on two by the identical holder of shape by clinching structure
Between holder, carriage center is equipped with mounting hole, and axle sleeve is equipped in mounting hole.
9. a kind of wheel hub electric motor of electric vehicle, it is characterised in that：Including stator and rotor assembly, the stator is claim 1~8
Any one of them wheel hub electric motor of electric vehicle stator.
10. a kind of wheel hub electric motor of electric vehicle according to claim 9, it is characterised in that：The rotor assembly include wheel rim,
Magnetic guiding loop and permanent magnet, the magnetic guiding loop is fixed on the inside of wheel rim, if the magnetic guiding loop inner wall is provided with dry plate permanent magnet.
11. a kind of wheel hub electric motor of electric vehicle according to claim 10, it is characterised in that：The magnetic guiding loop internal diameter is
The width of 209.5~217mm, the magnetic guiding loop are 35~60mm, and the thickness of the 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：Magnetic guiding loop inside and stator core
Interval between outside 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：The magnetic guiding loop internal diameter is 211
~215mm, the thickness of the magnetic guiding loop are 6~8.5mm, on the inside of magnetic guiding loop and on the outside of stator core between be divided into 2.3~
3.5mm。
14. a kind of wheel hub electric motor of electric vehicle according to claim 9, it is characterised in that：The wheel hub motor further includes electricity
Arbor, side lid and drum lid, side 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 slot number and permanent magnetism of stator core
The piece number of body is 54 slot, 48 permanent magnets, 51 slot, 46 permanent magnets, 51 slot, 56 permanent magnets, 54 slot, 60 permanent magnets, 48 slots 52
50 piece permanent magnet, 48 slot, 44 permanent magnets, 45 slot, 40 permanent magnets or 45 slots permanent magnets.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 |
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| CN106208437B true CN106208437B (en) | 2018-07-13 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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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| CN106208437A (en) | 2016-12-07 |
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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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