CN109004781A - A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application - Google Patents
A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application Download PDFInfo
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- CN109004781A CN109004781A CN201810741384.0A CN201810741384A CN109004781A CN 109004781 A CN109004781 A CN 109004781A CN 201810741384 A CN201810741384 A CN 201810741384A CN 109004781 A CN109004781 A CN 109004781A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 98
- 239000010959 steel Substances 0.000 claims abstract description 98
- 238000004804 winding Methods 0.000 claims abstract description 30
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 6
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 5
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 4
- 230000002596 correlated effect Effects 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 38
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000005347 demagnetization Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008450 motivation Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
-
- 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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicles of application, including the stator module being connected as one with motor reel, the permanent-magnetic outer rotor component for being connected as one with electric vehicle hub, being connect with the stator module magnetic coupling and coaxially exporting, the stator module includes the stator core being overrided to form by several stator punchings, the stator core has multiple slot for windings, the stator winding in slot for winding；The permanent-magnetic outer rotor component includes several permanent magnetic steels that the magnet yoke ring medial surface is arranged in magnet yoke ring and fixed intervals, wherein the draw ratio range of the permanent magnetic steel is 0.18-0.2；The present invention is realized under the basis of lower permanent magnetic steel thickness by being specifically designed, and motor itself and its correlated performance for being incorporated in electric vehicle will not have a negative impact.
Description
Technical field
The invention belongs to electric automobiles, and in particular to a kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor, the present invention
The electric vehicle of permanent-magnet synchronous wheel hub electric motor application is further related to.
Background technique
In electric automobiles, driving power source of the permanent-magnet synchronous wheel hub electric motor as electric vehicle hub is generallyd use.
Thickness (length) L of permanent magnetic steel magnetizing direction, important component of the permanent magnetic steel as permanent-magnet synchronous wheel hub electric motor is filled with it
The perpendicular area equivalent redius value of magnetic direction is radius R, generally claims the ratio L/R of the thickness L of the permanent magnetic steel and radius R
For the draw ratio of permanent magnetic steel.
It is verified in the prior art through lot of experiments analysis, the draw ratio of permanent magnetic steel need to meet certain number
Value, could effectively avoid the obvious demagnetization problem of permanent-magnet synchronous wheel hub electric motor.But on the other hand, if by the length of permanent magnetic steel
Diameter is more excessively high than setting, not only no longer has further the technical effect for improving permanent-magnet synchronous wheel hub electric motor demagnetization problem, and
And its more demanding permanent magnetic steel thickness, bear the material cost of permanent magnetic steel.In order to avoid demagnetizing
Reach optimal balance on showing between the two with cost, it is electronic after many experiments screening, simulation software simulation and summarizing
The draw ratio of permanent magnetic steel is usually generally arranged between 0.22-0.24 by vehicle field, and the thickness L of permanent magnetic steel is generally selected in
2.3-2.5mm, this is the common knowledge of electric automobiles technical staff.
The thickness of diminution permanent magnetic steel is proposed there are also technical solution at present to attempt to reduce material cost, such as authorized public
It accuses number utility model patent for being CN206807248U and discloses a kind of electric vehicle hub motor, the internal diameter of stator core is
214-234mm, the outer diameter of stator core are 250mm, and the axial width of stator core is 18-23mm, permanent magnet with a thickness of 2-
3mm to reduce the axial width of stator core, and then reduces copper wire winding by increasing the outer diameter and inner diameter of stator core
Dosage, while the thickness of permanent magnet is also reduced, as described in the patent in its specification [0006] section, the technical solution is one-sided
Ground reduces copper wire winding and permanent magnetism body thickness, will cause motor performance decline certainly, but due to stator core internal-and external diameter into
Gone and obviously increased, due to weight obtain it is substantially reduced, so as to make up the loss of motor performance；However the technical solution
Due to having increased considerably stator core internal-and external diameter, then it is greatly limited with the suitability of hub size in the prior art
System, and its desired adaptation hub size also obviously increases, and cause the increase of hub weight, and then bring new cost negative
The working efficiency of the electric vehicle of load and corresponding final application.
For another example it is straight to disclose a kind of electronic automobile-used inexpensive brushless, permanently for the patent of invention of Publication No. CN104753302A
Vacation is made extremely come the dosage for reducing permanent magnetic steel by the way that convex soft iron is arranged in galvanic electricity motivation, but the motor is on the other hand substantive
On sacrifice torsional performance.
Therefore, seek a kind of permanent magnetic steel cost is effectively reduced and does not influence motor itself and its applied to electric vehicle
Correlated performance is the green high-efficient developing direction for meeting the following hub for electric vehicle motor, therefore extremely important and great meaning
Justice.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its applications
Electric vehicle is realized under the basis of lower permanent magnetic steel thickness by being specifically designed, and motor itself and its is incorporated in electronic
The correlated performance of vehicle will not have a negative impact.
The technical solution adopted by the invention is as follows:
A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor, including the stator module being connected as one with motor reel, with
The permanent-magnetic outer rotor component that electric vehicle hub is connected as one, connect with the stator module magnetic coupling and coaxially exports,
In,
The stator module includes the stator core being overrided to form by several stator punchings, and the stator core has more
A slot for winding, the stator winding in slot for winding；
The permanent-magnetic outer rotor component includes that the several of the magnet yoke ring medial surface are arranged in magnet yoke ring and fixed intervals
Permanent magnetic steel, wherein the draw ratio range of the permanent magnetic steel is 0.18-0.2.
Preferably, the permanent magnetic steel thickness range is 1.1-2mm.
Preferably, the permanent magnetic steel thickness range is 1.2-2mm.
Preferably, the permanent magnetic steel thickness range is 1.5-1.9mm.
Preferably, the material of the permanent magnetic steel is neodymium iron boron.
Preferably, the external diametrical extent of the stator core is 105-120mm or 145-180mm or 190-220mm or 240-
270mm；The quantity of the slot for winding is 36 slots or 45 slots or 48 slots or 51 slots or 54 slots or 57 slots or 63 slots or 72 slots；It is described forever
The quantity of magnetic magnet steel is 40-80 piece.
Preferably, the outer diameter of the stator core is 202-208mm；The quantity of the slot for winding is 54；The permanent magnetism
The quantity of magnet steel is 60.
Preferably, the permanent-magnet synchronous wheel hub electric motor includes that can be mounted on the electricity with the relative rotation by installing bearing
The drive end bearing bracket and rear end cap at motivation axis both ends, and the Hall subassembly for being electrically connected with controller for electric vehicle, the stator iron
Core is fixedly connected by stator frame with the motor reel；The drive end bearing bracket and rear end cap are fixed by screws in the magnetic respectively
On yoke ring, the magnet yoke ring is connected as one with the electric vehicle hub.
Preferably, a kind of electric vehicle, including permanent-magnet synchronous wheel hub electric motor, wherein the permanent-magnet synchronous wheel hub electric motor
Using permanent-magnet synchronous wheel hub electric motor as described above.
Preferably, the electric vehicle is two-wheeled or Three-wheel type or four wheeled electric vehicle.
The present invention does not need the outer diameter for increasing stator core on the basis of keeping existing stator core construction,
The size and weight for not needing increase electric vehicle hub are obtained after being analyzed by many experiments when permanent magnetic steel is using neodymium iron boron material
It,, can when significantly reducing permanent magnetic steel thickness after carrying out particular range design only by the draw ratio to permanent magnetic steel when material
To guarantee that the performance of permanent-magnet synchronous wheel hub electric motor not will receive negative performance effects, electric vehicle is fully met for motor
Relevant criterion requirement, therefore technical solution of the present invention overcomes the limitation and art technology of simulation software in the prior art
Personnel's existing technology prejudice for a long time, can significantly reduce the permanent-magnet magnetic of low existing market permanent-magnet synchronous wheel hub electric motor
The material utilization amount of steel, and then the manufacturing cost of existing market permanent-magnet synchronous wheel hub electric motor is significantly reduced, simultaneously because this
Inventive technique scheme only relates to be specifically designed the dimensions of permanent magnetic steel, and scheme is very simple, and big promote is suitble to advise
Mould application implementation meets the green high-efficient developing direction of the following hub for electric vehicle motor.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of permanent-magnet synchronous wheel hub electric motor under the specific embodiment of the invention；
Attached drawing 2 is the structural schematic diagram of stator module and permanent-magnetic outer rotor component under the specific embodiment of the invention；
Attached drawing 3 is structure enlargement diagram at A in attached drawing 2；
Attached drawing 4 is the structural schematic diagram of stator module under the specific embodiment of the invention；
Attached drawing 5 is the structural schematic diagram of permanent-magnetic outer rotor component under the specific embodiment of the invention；
Attached drawing 6 is the motor performance parameter testing comparison diagram of the embodiment of the present invention 1 Yu comparative example 1.
Specific embodiment
The embodiment of the invention discloses a kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motors, including are connected as with motor reel
The stator module of one, be connected as one with electric vehicle hub and the stator module magnetic coupling permanent magnetism that connect and coaxially export
Outer rotor component, stator module include the stator core being overrided to form by several stator punchings, stator core have it is multiple around
Group slot, the stator winding in slot for winding；Permanent-magnetic outer rotor component includes magnet yoke ring and the magnet yoke ring that fixed intervals are arranged in
Several permanent magnetic steels of medial surface, wherein the draw ratio range of permanent magnetic steel is 0.18-0.2.
The embodiment of the invention also discloses a kind of electric vehicles, including permanent-magnet synchronous wheel hub electric motor, wherein permanent-magnet synchronous wheel
Hub motor uses permanent-magnet synchronous wheel hub electric motor as described above.
The embodiment of the present invention does not need the outer diameter ruler for increasing stator core on the basis of keeping existing stator core construction
It is very little, the size and weight for increasing electric vehicle hub are not needed yet, are obtained after being analyzed by many experiments when permanent magnetic steel is using neodymium
It is thick when significantly reducing permanent magnetic steel after carrying out particular range design only by the draw ratio to permanent magnetic steel when iron boron material
When spending, it is ensured that the performance of permanent-magnet synchronous wheel hub electric motor not will receive negative performance effects, fully meet electric vehicle for
The relevant criterion requirement of motor, therefore the technical solution of the embodiment of the present invention overcomes the limitation of simulation software in the prior art
Property and those skilled in the art's existing technology prejudice for a long time, low existing market permanent-magnet synchronous wheel hub can be significantly reduced
The material utilization amount of the permanent magnetic steel of motor, so significantly reduce the manufacture of existing market permanent-magnet synchronous wheel hub electric motor at
This, simultaneously because technical solution of the embodiment of the present invention only relates to be specifically designed the dimensions of permanent magnetic steel, scheme is non-
It is often simple, it is suitble to big popularization sizable application to implement, meets the green high-efficient developing direction of the following hub for electric vehicle motor.
Embodiment 1:
A kind of permanent-magnet synchronous wheel hub electric motor 100 shown in Figure 1, including what is be connected as one with motor reel 10
Stator module 20, outside the permanent magnetism for being connected as one with electric vehicle hub 30, being connect with 20 magnetic coupling of stator module and coaxially exporting
Rotor assembly 40, the drive end bearing bracket 50 and rear end cap 60 that motor reel both ends can be mounted on the relative rotation by installing bearing, with
And the Hall subassembly for being electrically connected with controller for electric vehicle, please further referring to fig. 2, shown in Fig. 3, Fig. 4 and Fig. 5, stator pack
Part 20 includes the stator core 21 being overrided to form by several stator punchings, and stator core 21 has multiple slot for windings 22, is located at
Stator winding in slot for winding 22；In the magnet yoke ring 41 that permanent-magnetic outer rotor component 40 is arranged in including magnet yoke ring 41 and fixed intervals
Several permanent magnetic steels 42 of side；Stator core 21 is fixedly connected by stator frame 23 with motor reel 10；Drive end bearing bracket 50 is with after
End cap 60 is fixed by screws on magnet yoke ring respectively, and magnet yoke ring 41 is connected as one with electric vehicle hub 30；
Preferably, the external diametrical extent of stator core is 105-120mm or 145-180mm or 190-220mm or 240-
270mm；The quantity of slot for winding is 36 slots or 45 slots or 48 slots or 51 slots or 54 slots or 57 slots or 63 slots or 72 slots；Permanent magnetic steel
Quantity is 40-80 piece；In embodiments of the present invention, the outer diameter of the stator core of motor, the quantity of slot for winding and permanent-magnet magnetic
The parameter selections such as the quantity of steel can be set according to motor specification in the prior art, these are not belonging to institute of the present invention
Improved technology contents are wanted, therefore, those skilled in the art can come according to the actual demand situation of existing market as above preferred
The specification of specific motor is selected in range, these different size motor can be implemented technical solution of the present invention, this hair
It is bright that it is not specially limited.
Preferably, the material of permanent magnetic steel 42 is neodymium iron boron；The external diametrical extent of stator core 21 is
190-220mm, and 42 thickness range of permanent magnetic steel is 1.1-2mm；And the draw ratio range of permanent magnetic steel 42 is
0.18-0.2；Preferably, 42 thickness range of permanent magnetic steel is 1.2-2mm, it is further preferred that 42 thickness range of permanent magnetic steel
For 1.5-1.9mm.
Particularly preferably, in the present embodiment, the outer diameter of stator core 21 is 205.3mm；The quantity of slot for winding 22 is
54, the internal diameter of magnet yoke ring 41 is 210mm；The quantity of permanent magnetic steel 42 is 60, as 60 pole field structures；Permanent magnetic steel 42
With a thickness of 1.9mm, radius 9.647, the value of draw ratio is 0.2；
The present embodiment also proposed a kind of electric vehicle, including permanent-magnet synchronous wheel hub electric motor, wherein permanent-magnet synchronous wheel hub electricity
Motivation uses permanent-magnet synchronous wheel hub electric motor 100 as described above.
The electric vehicle of the embodiment of the present invention can be two-wheeled or Three-wheel type or four wheeled electric vehicle, specifically, in this reality
It applies in mode, electric vehicle is two-wheeled electric vehicle, and of course, in other embodiments, electric vehicle uses Three-wheel type or four-wheel
Formula electric vehicle, it is also possible to obtain the technical effect of the invention to be realized.
Comparative example 1:
Using the permanent-magnet synchronous wheel hub electric motor of same specification on existing market, permanent magnetic steel is with a thickness of 2.3mm, radius
10.398, the value of draw ratio is 0.22, remaining motor designs parameter is essentially identical.
It is shown in Figure 6, by applicant using motor performance test software to above-described embodiment 1 and comparative example 1
It has carried out motor performance to be analyzed (predominantly torque-operating current curve and torque-efficiency curve), discovery is originally
The performance essentially identical with comparative example 1 is fully achieved in embodiment 1, fully meets electric vehicle for the correlated performance standard of motor
Demand (should be less than 5% requirement including demagnetization rate), and due to effectively reducing the dosage of permanent magnetic steel, the present embodiment
1 permanent magnetic steel manufacturing cost reduces at least 15% or more relative to comparative example 1.
Embodiment 2:
Remaining technical solution of the present embodiment 2 is same as Example 1, and difference is only that: in the present embodiment 2, stator iron
The outer diameter of core is 208mm；The quantity of slot for winding is 54, and the internal diameter of magnet yoke ring is 213mm；The quantity of permanent magnetic steel is 60,
As 60 pole field structures；Permanent magnetic steel is 0.18 with a thickness of 1.6mm, radius 8.889mm, the value of draw ratio.
Embodiment 3:
Remaining technical solution of the present embodiment 3 is same as Example 1, and difference is only that: in the present embodiment 3, stator iron
The outer diameter of core is 215mm；The quantity of slot for winding is 54, and the internal diameter of magnet yoke ring is 213mm；The quantity of permanent magnetic steel is 60,
As 60 pole field structures；Permanent magnetic steel is 0.19 with a thickness of 1.5mm, radius 7.895mm, the value of draw ratio.
Embodiment 4:
Remaining technical solution of the present embodiment 4 is same as Example 1, and difference is only that: in the present embodiment 4, stator iron
The outer diameter of core is 220mm；The quantity of slot for winding is 54, and the internal diameter of magnet yoke ring is 225.7mm；The quantity of permanent magnetic steel is 60
Piece, as 60 pole field structures；Permanent magnetic steel is 0.2 with a thickness of 1.7mm, radius 8.5mm, the value of draw ratio.
The present embodiment 2-4 can obtain motor performance substantially the same manner as Example 1, and permanent magnetic steel manufacturing cost
At least 20% or more is reduced relative to comparative example 1.
Embodiment 5:
Remaining technical solution of the present embodiment 5 is same as Example 1, and difference is only that: in the present embodiment 5, stator iron
The outer diameter of core is 200mm；The quantity of slot for winding is 54, and the internal diameter of magnet yoke ring is 215.5mm；The quantity of permanent magnetic steel is 60
Piece, as 60 pole field structures；Permanent magnetic steel is 0.19 with a thickness of 1.4mm, radius 7.368mm, the value of draw ratio.
Embodiment 6:
Remaining technical solution of the present embodiment 6 is same as Example 1, and difference is only that: in the present embodiment 6, stator iron
The outer diameter of core is 195.4mm；The quantity of slot for winding is 54, and the internal diameter of magnet yoke ring is 200mm；The quantity of permanent magnetic steel is 60
Piece, as 60 pole field structures；Permanent magnetic steel is 0.18 with a thickness of 1.3mm, radius 7.222mm, the value of draw ratio.
Embodiment 7:
Remaining technical solution of the present embodiment 7 is same as Example 1, and difference is only that: in the present embodiment 7, stator iron
The outer diameter of core is 190mm；The quantity of slot for winding is 54, and the internal diameter of magnet yoke ring is 195mm；The quantity of permanent magnetic steel is 60,
As 60 pole field structures；Permanent magnetic steel is 0.2 with a thickness of 1.2mm, radius 6mm, the value of draw ratio.
The present embodiment 5-7 obtain with the basic similar motor performance of embodiment 1, slightly below implement in motor efficiency
Example 1, but still meet electric vehicle for the correlated performance standard requirement of motor, and permanent magnetic steel manufacturing cost relative to than
At least 40% or more is reduced compared with example 1.
Embodiment 8:
Remaining technical solution of the present embodiment 8 is same as Example 1, and difference is only that: in the present embodiment 8, permanent-magnet magnetic
Steel is 0.2 with a thickness of 1.1mm, radius 5.5mm, the value of draw ratio.
8 motor performance of the present embodiment shows obviously less than embodiment 1, and is unfavorable for the processing work of permanent magnetic steel
Skill, it is proposed that do not continue to reduce permanent magnetic steel thickness, the present embodiment 8 still meets the phase that can satisfy electric vehicle for motor
Performance basic standard demand is closed, and permanent magnetic steel manufacturing cost reduces at least 50% or more relative to comparative example 1.
Embodiment 9:
Remaining technical solution of the present embodiment 9 is same as Example 1, and difference is only that: in the present embodiment 9, permanent-magnet magnetic
Steel is 0.18 with a thickness of 2mm, radius 11.111mm, the value of draw ratio.
The present embodiment 9 can obtain motor performance substantially the same manner as Example 1, and permanent magnetic steel manufacturing cost phase
12% or so is reduced for comparative example 1, but suggests not continuing to increase permanent magnetic steel thickness, because for reducing permanent magnetic steel
The effect of cost is no longer obvious.
Comparative example 2:
Remaining technical solution of this comparative example 2 is same as Example 1, and difference is only that: in this comparative example 2, permanent-magnet magnetic
Steel is 0.21 with a thickness of 2mm, radius 9.524mm, the value of draw ratio.
Comparative example 3:
Remaining technical solution of this comparative example 3 is same as Example 1, and difference is only that: in this comparative example 3, permanent-magnet magnetic
Steel is 0.22 with a thickness of 1.9mm, radius 8.636mm, the value of draw ratio.
Comparative example 4:
Remaining technical solution of this comparative example 4 is same as Example 1, and difference is only that: in this comparative example 4, permanent-magnet magnetic
Steel is 0.24 with a thickness of 1.8mm, radius 7.5mm, the value of draw ratio.
Comparative example 5:
Remaining technical solution of this comparative example 5 is same as Example 1, and difference is only that: in this comparative example 5, permanent-magnet magnetic
Steel is 0.22 with a thickness of 1.5mm, radius 6.818mm, the value of draw ratio.
Comparative example 6:
Remaining technical solution of this comparative example 6 is same as Example 1, and difference is only that: in this comparative example 6, permanent-magnet magnetic
Steel is 0.2 with a thickness of 0.8mm, radius 4mm, the value of draw ratio.
Comparative example 7:
Remaining technical solution of this comparative example 7 is same as Example 1, and difference is only that: in this comparative example 7, permanent-magnet magnetic
Steel is 0.18 with a thickness of 1mm, radius 5.556mm, the value of draw ratio.
Comparative example 8:
Remaining technical solution of this comparative example 8 is same as Example 1, and difference is only that: in this comparative example 8, permanent-magnet magnetic
Steel is 0.17 with a thickness of 1.9mm, radius 11.176mm, the value of draw ratio.
It (mainly includes motor that the motor performance performance of above-mentioned comparative example 2- comparative example 8, which is significantly worse than embodiment 1,
Demagnetization performance rate is significantly greater than 5% or more, and then affects the efficiency and service life of motor), it is not able to satisfy electric vehicle pair
In the correlated performance standard requirement of motor, although the permanent magnetic steel manufacturing cost in these comparative examples is relative to comparative example 1
It is substantially reduced, but cannot achieve the application in electric vehicle industry.
Comparative example 9:
Remaining technical solution of this comparative example 9 is identical as embodiment 1- embodiment 9, and difference is only that: in this comparative example 9
In, the material of permanent magnetic steel is ferrite.
The motor performance performance of above-mentioned comparative example 9 is significantly worse than embodiment 1, is not able to satisfy electric vehicle for motor
Correlated performance standard requirement (be mainly shown as the demagnetization rate of motor be significantly greater than 5% or more or motor efficiency obviously become
It is poor).
Those skilled in the art can above embodiments according to the present invention technical solution, the present invention is practiced in existing
Have in technology in the electronic automobile-used permanent-magnet synchronous wheel hub electric motor of other different sizes, such as the stator core outer diameter of the prior art
Range specification is usually 105-120mm or 145-180mm or 190-220mm or 240-270mm；The quantity of slot for winding be 36 slots or
45 slots or 48 slots or 51 slots or 54 slots or 57 slots or 63 slots or 72 slots；The quantity of permanent magnetic steel is 40-80 piece；It is more specific next
It says, such as: 54 slot, 48 pole field structure or 48 slot, 42 pole field structure or 56 pole magnetic pole of 48 slot, 52 pole field structure or 63 slot
Structure or 36 slot, 40 pole field structure or 45 slot, 50 pole field structure or 60 pole magnetic pole of 51 slot, 64 pole field structure or 57 slot
Structure or 72 slot, 80 pole field structure or any one other quantity slot for winding adds other quantity field structure in the prior art,
Those skilled in the art can be applied to the electronic of these different sizes based on core technology thinking proposed by the present invention
In automobile permanent magnet synchronous hub motor, it is not necessary to make other performances and structure of motor sacrifice change, present invention combination is answered
With the motor product obtained after implementation relative to the motor product on the existing market of its same size, can obtain and this
The substantially similar technical effect of inventive embodiments 1-9 is improved horizontal, that is to say, that is wanted being not necessary to sacrifice electric vehicle professional standard
Under the premise of the motor performance asked, permanent magnetic steel thickness can be effectively reduced, and then significantly reduce the manufacturing cost of motor,
Therefore these combined applications are regarded as protection scope of the present invention.
Technical effect outstanding is surprisedly had found after being implemented by a large amount of embodiments of the invention and comparative example comparison,
That is: the embodiment of the present invention does not need the outer diameter for increasing stator core on the basis of keeping existing stator core construction,
The size and weight for not needing increase electric vehicle hub do not need other performances for sacrificing motor more, pass through many experiments point
It is obtained after analysis when permanent magnetic steel is using NdFeB material, carries out particular range design only by the draw ratio to permanent magnetic steel
After (the draw ratio range of permanent magnetic steel is set in 0.18-0.2), when significantly reducing permanent magnetic steel thickness, it is ensured that
The performance of permanent-magnet synchronous wheel hub electric motor not will receive negative performance effects, fully meets electric vehicle and the correlation of motor is marked
Alignment request, therefore the technical solution of the embodiment of the present invention overcomes the limitation and art technology of simulation software in the prior art
Personnel's existing technology prejudice for a long time, can significantly reduce the permanent-magnet magnetic of low existing market permanent-magnet synchronous wheel hub electric motor
The material utilization amount of steel (can at least reduce 10% or more permanent magnetic steel cost, under conditions of optimal enforcement, permanent magnetic steel cost is only
50-60% of the prior art or so has greatly saved the manufacturing cost of motor), and then significantly reduce existing market
The manufacturing cost of permanent-magnet synchronous wheel hub electric motor, simultaneously because technical solution of the embodiment of the present invention only relates to the ruler to permanent magnetic steel
Very little specification is specifically designed, and scheme is very simple, and big popularization sizable application is suitble to implement, and meets the following hub for electric vehicle electricity
The green high-efficient developing direction of motivation.
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor, including the stator module being connected as one with motor reel, with electricity
The permanent-magnetic outer rotor component that motor-car wheel hub is connected as one, connect with the stator module magnetic coupling and coaxially exports, it is special
Sign is,
The stator module includes the stator core being overrided to form by several stator punchings, the stator core have it is multiple around
Group slot, the stator winding in slot for winding；
The permanent-magnetic outer rotor component includes several permanent magnetism that the magnet yoke ring medial surface is arranged in magnet yoke ring and fixed intervals
Magnet steel, wherein the draw ratio range of the permanent magnetic steel is 0.18-0.2.
2. electronic automobile-used permanent-magnet synchronous wheel hub electric motor as described in claim 1, which is characterized in that the permanent magnetic steel thickness
Range is 1.1-2mm.
3. electronic automobile-used permanent-magnet synchronous wheel hub electric motor as claimed in claim 2, which is characterized in that the permanent magnetic steel thickness
Range is 1.5-1.9mm.
4. the electronic automobile-used permanent-magnet synchronous wheel hub electric motor as described in claims 1 or 2 or 3, which is characterized in that the permanent-magnet magnetic
The material of steel is neodymium iron boron.
5. the electronic automobile-used permanent-magnet synchronous wheel hub electric motor as described in claims 1 or 2 or 3, which is characterized in that the stator iron
The external diametrical extent of core is 105-120mm or 145-180mm or 190-220mm or 240-270mm；The quantity of the slot for winding is 36
Slot or 45 slots or 48 slots or 51 slots or 54 slots or 57 slots or 63 slots or 72 slots；The quantity of the permanent magnetic steel is 40-80 piece.
6. electronic automobile-used permanent-magnet synchronous wheel hub electric motor as claimed in claim 5, which is characterized in that outside the stator core
Diameter is 202-208mm；The quantity of the slot for winding is 54；The quantity of the permanent magnetic steel is 60.
7. the electronic automobile-used permanent-magnet synchronous wheel hub electric motor as described in claims 1 or 2 or 3, which is characterized in that the permanent magnetism is same
Step wheel hub electric motor includes drive end bearing bracket and the rear end that can be mounted on the motor reel both ends with the relative rotation by installing bearing
Lid, and the Hall subassembly for being electrically connected with controller for electric vehicle, the stator core pass through stator frame and the motor
Axis is fixedly connected；The drive end bearing bracket and rear end cap are fixed by screws in respectively on the magnet yoke ring, the magnet yoke ring with it is described
Electric vehicle hub is connected as one.
8. a kind of electric vehicle, including permanent-magnet synchronous wheel hub electric motor, which is characterized in that the permanent-magnet synchronous wheel hub electric motor uses
Permanent-magnet synchronous wheel hub electric motor as described in one of claim 1-7.
9. electric vehicle as claimed in claim 8, which is characterized in that the electric vehicle is two-wheeled or Three-wheel type or four wheeled electricity
Motor-car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741384.0A CN109004781A (en) | 2018-07-09 | 2018-07-09 | A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741384.0A CN109004781A (en) | 2018-07-09 | 2018-07-09 | A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application |
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| Publication Number | Publication Date |
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| CN109004781A true CN109004781A (en) | 2018-12-14 |
Family
ID=64598569
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810741384.0A Pending CN109004781A (en) | 2018-07-09 | 2018-07-09 | A kind of electronic automobile-used permanent-magnet synchronous wheel hub electric motor and its electric vehicle of application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086271A (en) * | 2019-05-27 | 2019-08-02 | 枣庄学院 | Mining cable car 153 slot, 138 grades of high performance permanent magnetic synchronous motors |
| CN113328543A (en) * | 2021-06-19 | 2021-08-31 | 江苏聚磁电驱动科技有限公司 | High-grade permanent magnet motor with multilayer winding structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203632511U (en) * | 2013-11-04 | 2014-06-04 | 德昌电机(深圳)有限公司 | Permanent magnet brushless motor |
| CN203896059U (en) * | 2014-05-09 | 2014-10-22 | 天津雅迪实业有限公司 | Motor stator and rotor structure of electric car brushless hub |
| CN204794530U (en) * | 2015-07-27 | 2015-11-18 | 温岭市九洲电机制造有限公司 | In -wheel motor of electric motor car |
| CN204906145U (en) * | 2015-09-14 | 2015-12-23 | 台州市金宇机电有限公司 | Brushless direct current in -wheel motor of permanent magnetism for electric motor car with low material of high efficiency decreases |
| CN205051549U (en) * | 2015-07-29 | 2016-02-24 | 无锡赛盈电机科技有限公司 | Motor for electric motor car |
| DE102014014040A1 (en) * | 2014-09-26 | 2016-03-31 | Minebea Co., Ltd. | electric motor |
| CN106208437A (en) * | 2016-08-12 | 2016-12-07 | 温岭市九洲电机制造有限公司 | A kind of wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator |
| CN206412915U (en) * | 2016-12-30 | 2017-08-15 | 台州市雷力机电有限公司 | A kind of direct current permanent magnetic brushless motor for electric car |
| CN206807248U (en) * | 2017-05-15 | 2017-12-26 | 温岭市九洲电机制造有限公司 | A kind of wheel hub electric motor of electric vehicle |
-
2018
- 2018-07-09 CN CN201810741384.0A patent/CN109004781A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203632511U (en) * | 2013-11-04 | 2014-06-04 | 德昌电机(深圳)有限公司 | Permanent magnet brushless motor |
| CN203896059U (en) * | 2014-05-09 | 2014-10-22 | 天津雅迪实业有限公司 | Motor stator and rotor structure of electric car brushless hub |
| DE102014014040A1 (en) * | 2014-09-26 | 2016-03-31 | Minebea Co., Ltd. | electric motor |
| CN204794530U (en) * | 2015-07-27 | 2015-11-18 | 温岭市九洲电机制造有限公司 | In -wheel motor of electric motor car |
| CN205051549U (en) * | 2015-07-29 | 2016-02-24 | 无锡赛盈电机科技有限公司 | Motor for electric motor car |
| CN204906145U (en) * | 2015-09-14 | 2015-12-23 | 台州市金宇机电有限公司 | Brushless direct current in -wheel motor of permanent magnetism for electric motor car with low material of high efficiency decreases |
| CN106208437A (en) * | 2016-08-12 | 2016-12-07 | 温岭市九洲电机制造有限公司 | A kind of wheel hub electric motor of electric vehicle stator and the motor containing this kind of stator |
| CN206412915U (en) * | 2016-12-30 | 2017-08-15 | 台州市雷力机电有限公司 | A kind of direct current permanent magnetic brushless motor for electric car |
| CN206807248U (en) * | 2017-05-15 | 2017-12-26 | 温岭市九洲电机制造有限公司 | A kind of wheel hub electric motor of electric vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086271A (en) * | 2019-05-27 | 2019-08-02 | 枣庄学院 | Mining cable car 153 slot, 138 grades of high performance permanent magnetic synchronous motors |
| CN113328543A (en) * | 2021-06-19 | 2021-08-31 | 江苏聚磁电驱动科技有限公司 | High-grade permanent magnet motor with multilayer winding structure |
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