CN105515227A - Device for enhancing heat-dissipating performance of hub motor - Google Patents

Device for enhancing heat-dissipating performance of hub motor Download PDF

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Publication number
CN105515227A
CN105515227A CN201511019548.1A CN201511019548A CN105515227A CN 105515227 A CN105515227 A CN 105515227A CN 201511019548 A CN201511019548 A CN 201511019548A CN 105515227 A CN105515227 A CN 105515227A
Authority
CN
China
Prior art keywords
stator
heat
hub motor
wheel hub
heat pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201511019548.1A
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Chinese (zh)
Other versions
CN105515227B (en
Inventor
简弃非
赵晶
康文明
唐强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Huidi New Energy Technology Co Ltd
South China University of Technology SCUT
Original Assignee
Guangzhou Huidi New Energy Technology Co Ltd
South China University of Technology SCUT
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Application filed by Guangzhou Huidi New Energy Technology Co Ltd, South China University of Technology SCUT filed Critical Guangzhou Huidi New Energy Technology Co Ltd
Priority to CN201511019548.1A priority Critical patent/CN105515227B/en
Publication of CN105515227A publication Critical patent/CN105515227A/en
Application granted granted Critical
Publication of CN105515227B publication Critical patent/CN105515227B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/225—Heat pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
    • 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
    • H02K1/22—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
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • 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
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/227—Heat sinks
    • 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
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • 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
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/16—DC brushless machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/50—Structural details of electrical machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/36—Temperature of vehicle components or parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/425—Temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • 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 invention discloses a device for enhancing the heat-dissipating performance of a hub motor. Grooves are disposed on both side surfaces of the stator of the device. A stator heat pipe comprises a heat-absorbing end and a heat-dissipating end. The heat-absorbing end comprises a first stator heat pipe and a second stator heat pipe. The first stator heat pipe and the second stator heat pipe are both bent to form circular structures and are installed in the grooves on both side surfaces of the stator respectively. The two heat-dissipating ends of the stator heat pipes are both inserted into stator heat-dissipating fins arranged around a fixed shaft. The outer surface of the front end cap of the hub motor is equipped with heat-dissipating fins or a heat-dissipating structure in which heat-dissipating fins and the heat pipes cooperate. Each salient pole of a rotor is equipped with at least one groove in which a rotor heat pipe is disposed. From a source generating heat of the hub motor, the device rapidly and comprehensively dissipate the heat of the hub motor out of the stator, the rotor, and the housing of the motor so as to achieve an effect of enhancing the heat-dissipating performance of the stator and the rotor inside the hub motor and the housing of the motor.

Description

A kind of device strengthening wheel hub motor heat dispersion
Technical field
The present invention relates to a kind of heat abstractor, particularly relate to a kind of device strengthening wheel hub motor heat dispersion.
Background technology
Along with improving constantly of people's quality of life, automobile comes into huge numbers of families, becomes the important vehicles of people's go off daily, for people bring greatly convenient.But along with the increase sharply of automobile quantity, also bring serious environmental pollution and energy-intensive problem.For this reason, orthodox car industry is just aiming at this emerging field of electric automobile.As far back as 1900, just produced the electric automobile of front-wheel equipment wheel hub motor, at 20 century 70s, this technology was applied in fields such as Mine haul cars.And for passenger car wheel hub motor used, Japanese manufacturer carries out comparatively early for technique research and development, maintain the leading position at present, comprise involved by international automobile giant that is general, Toyota also has this technology.
Wheel hub motor is important technical basis and the research and development direction of Development of Electric Vehicles.Power set, transmission device and brake apparatus all integrate in wheel hub by its maximum feature exactly.For conventional truck, clutch, speed changer, power transmission shaft, differential mechanism and even transfer gear are all absolutely necessary, and these parts not only weight light, make the structure of vehicle more complicated, also there is the problem needing periodic maintenance and failure rate simultaneously.Wheel hub motor, by outer rotor hub motor direct drive of wheel, enormously simplify vehicle mechanical running part, and make vehicle structure simpler, transferring power is more efficient.
Electric automobile in the process of moving, can produce a large amount of heats, and mainly because copper loss, iron loss and friction etc. that electric motor internal stator and rotor produce cause, along with the increase of the speed of a motor vehicle, loss increases gradually, and the heat of motor generation also increases gradually.Heat is many just needs heat radiation, the wind-cooling heat dissipating that wheel hub motor generally all adopts, heat radiation completes by motor housing and cross-ventilation heat exchange completely, the stator of motor internal can produce a large amount of heats and be transmitted to rotor inner surface mainly through inner air, then be transmitted to motor housing by rotor and could realize heat radiation, make motor housing temperature also very high like this, and rotor itself is also a main pyrotoxin in motor, temperature reaches as high as more than 400K, the heat radiation of itself just also exists certain difficulty, the heat of motor internal will be made like this to can not get efficiently radiates heat, these heats often all can cause whole wheel hub motor temperature very high, if wheel hub motor temperature is too high, electric efficiency can reduce greatly, even motor damage.
Summary of the invention
For the above-mentioned technical problem mentioned, the object of the invention is to solve in above-mentioned background the problem mentioned and provide a kind of with low cost, simple and compact for structure, radiating effect is remarkable, the structure of adaptable strengthening wheel hub motor heat dispersion.
Therefore the good ventilation and heat condition of employing is taken away the heat of stator, rotor and motor housing to reduce motor temperature by the design respectively, to prolongation automotive service life, reduces energy consumption and improves electric efficiency important role.
Heat pipe and fin are all good heat conducting elements, and heat pipe is generally made up of shell, liquid-sucking core and end cap, and inside is pumped into negative pressure state, be filled with suitable liquid, this boiling point of liquid is low, easily volatilizees, utilize sweat cooling, make heat pipe two ends temperature difference very large, heat is conducted fast.Heat pipe is simple because of structure, has very high thermal conductivity, features such as excellent isothermal and being widely used.Fin is needing to carry out the heat-exchanger rig surface of heat trnasfer by increasing the stronger sheet metal of thermal conductivity, can increase the heat transfer sheet area of heat-exchanger rig thus enhanced heat exchange effect, of all kinds according to the shape of actual conditions fin.
In order to achieve the above object, the present invention adopts following technical scheme:
Strengthen a device for wheel hub motor heat dispersion, mainly comprise wheel hub motor front end housing, rotor, bearing, stator, dead axle and wheel hub motor rear end cap; Wheel hub motor front end housing and wheel hub motor rear end cap form motor housing; Rotor comprises multiple salient pole, and salient pole material is permanent magnet, and multiple salient pole interval is fixed on described wheel hub motor front end housing circumferential inner wall; Stator is arranged in the face of cylinder of described salient pole formation, and keeps spacing between salient pole; Stator is connected with dead axle by bearing; The two sides of described stator are provided with groove; Stator heat pipe comprises heat absorbing end and radiating end, and heat absorbing end comprises the first stator heat pipe and the second stator heat pipe; First stator heat pipe and the second stator heat pipe all circumflexion structures, be arranged in the groove on the two sides of stator respectively; Bend towards in the hole slot that the dead axle in axle center is arranged after first stator heat pipe and the second stator heat pipe round around the groove of stator two sides respectively, rear end cap is stretched out after dead axle extends, then bend respectively up and down, form two radiating ends, two radiating ends of stator heat pipe all stretch into around in the stator radiating fin of dead axle setting;
The outer surface of described wheel hub motor front end housing is provided with radiating fin, or the outer surface of described wheel hub motor front end housing is provided with the radiator structure that radiating fin coordinates with heat pipe;
Each salient pole of described rotor is provided with at least one groove, is provided with rotor heat pipe in groove; Rotor heat pipe is loop structure, joining end to end of heat pipe.
For realizing the object of the invention further, preferably, it is be provided with at the outer surface of wheel hub motor front end housing to be circumferentially at least provided with a circle groove that the outer surface of described wheel hub motor front end housing is provided with the radiator structure that radiating fin coordinates with heat pipe, be provided with front end housing heat pipe in groove, the outer surface of wheel hub motor front end housing is also circumferentially evenly arranged polylith first front end housing radiating fin; First front end housing radiating fin is connected with front end housing heat pipe.
Preferably, the material of described first front end housing radiating fin is aluminum alloy materials, and thickness is 1.5-2.5mm; The cross section of the first front end housing radiating fin is rectangle, and rectangle has louvre, and the bottom of the first front end housing radiating fin is provided with the semi-circular hole of 6mm.
Preferably, described first front end housing radiating fin radially forms different layers from inside to outside, is fork row arrangement between the fin of adjacent layer.
Preferably, described first front end housing radiating fin and front end housing heat pipe adopted tight fit or were welded to connect.
Preferably, the radiating fin that the outer surface of described wheel hub motor front end housing is provided with is cellular fin; Cellular fin is that regular hexagon hollow-core construction is interconnected and forms by multiple cross section; The height of cellular fin is 8-10mm, forms orthohexagonal every block plate and is provided with one or more aperture.
Preferably, described stator radiating fin adopts Circular Thin fin, fin has 2mm louvre, and each layer fin interval is even, is 10-15 layer, forms donut structure.
Preferably, the radiating end of described stator radiating fin and stator heat pipe adopted tight fit or was welded to connect.
Preferably, described salient pole is overrided to form by the punching silicon-steel that 0.5mm is thick.
Preferably, the cross section of the groove that the two sides of described stator are provided with is for circular or semicircle, and circular or half diameter of a circle in cross section is 6mm.
Relative to conventional boss motor, the design has following beneficial effect:
1) the present invention produces the source of heat from wheel hub motor, open and all sidedly the heat of wheel hub motor is dispersed into the external world rapidly from stator, rotor, motor housing three aspects by heat pipe and fin, reach the effect of strengthening wheel hub motor internal stator, rotor and shell heat dispersion, without the need to consuming external energy and under noiseless condition of work, reduce the mean temperature of wheel hub motor, improve its heat dispersion, extend its useful life.
2) heat of stator of the present invention directly derives the heat radiation of motor housing fit on stator radiating fin by heat pipe, because stator radiating fin is arranged on outside motor housing, and the feature that when this structure make use of start, the flowing of motor housing outer air is accelerated.
3) heat trnasfer of rotor of the present invention is to outer surface of motor, motor housing then carries out heat convection with air rapidly by fin or hot tube high-efficiency, this is compared with conventional boss motor, by using the heat pipe of high thermal conductivity, and by reasonable Arrangement fin, reach the object of strengthening motor heat dispersion.
4) to strengthen the apparatus structure of wheel hub motor heat dispersion simply compact in the present invention, and radiating effect is remarkable, with low cost, strong adaptability.
Accompanying drawing explanation
Fig. 1 is the overall appearance schematic diagram that embodiment 1 strengthens the device of wheel hub motor heat dispersion.
Fig. 2 is each parts exploded perspective view that embodiment 1 strengthens the device of wheel hub motor heat dispersion.
Fig. 3 is the overall appearance schematic diagram that embodiment 2 strengthens the device of wheel hub motor heat dispersion.
Fig. 4 is each parts exploded perspective view that embodiment 2 strengthens the device of wheel hub motor heat dispersion.
Fig. 5 is the structural representation of embodiment 1 front end housing heat pipe.
Fig. 6 is embodiment 1 first front end housing radiating fin corporation structure schematic diagram.
Fig. 7 is the schematic cross-section of embodiment 2 second front end housing radiating fin.
Fig. 8 is embodiment 2 second front end housing radiating fin close-up schematic view.
Fig. 9 is embodiment 1,2 rotor structure schematic diagram.
Figure 10 is embodiment 1,2 rotor loop heat pipe spatial distribution schematic diagram.
Figure 11 is embodiment 1,2 stator structure schematic diagram.
Figure 12 is the structural representation of stator heat pipe in embodiment 1,2.
Figure 13 is the assembly structure schematic diagram of embodiment 1,2 stator, stator heat pipe and dead axle.
Figure 14 is the structural representation of embodiment 1,2 stator radiating fin.
Shown in figure: wheel hub motor front end housing 1, rotor 2, bearing 3, stator 4, dead axle 5, wheel hub motor rear end cap 6, front end housing heat pipe 7-1, rotor heat pipe 7-2, stator heat pipe 7-3, the first stator heat pipe 7-3-1, the second stator heat pipe 7-3-2, the first front end housing radiating fin 8-1, the second front end housing radiating fin 8-2, stator radiating fin 8-3.
Embodiment
For understanding the present invention better, below in conjunction with drawings and Examples, the present invention is further illustrated, but embodiments of the present invention are not limit so.
Embodiment 1
As shown in Fig. 1, Fig. 2, a kind of constructional device strengthening wheel hub motor heat dispersion, mainly comprises wheel hub motor front end housing 1, rotor 2, bearing 3, stator 4, dead axle 5, wheel hub motor rear end cap 6, heat pipe and radiating fin; Wheel hub motor front end housing 1 and wheel hub motor rear end cap 6 form motor housing, and wheel hub motor front end housing 1 and wheel hub motor rear end cap 6 are for encapsulated motor; Rotor 2 comprises multiple salient pole, and salient pole material is permanent magnet, and multiple salient pole interval is fixed on described wheel hub motor front end housing 1 circumferential inner wall; Stator 4 is arranged in the face of cylinder of described salient pole formation, and keeps spacing between salient pole; Stator 4 is connected with dead axle 5 by bearing 3.
As shown in Figure 11, Figure 12, Figure 13, the groove that the two sides of stator 4 are provided with, for installing stator heat pipe 7-3, stator heat pipe 7-3 comprises heat absorbing end and radiating end, and heat absorbing end comprises the first stator heat pipe 7-3-1 and the second stator heat pipe 7-3-2; First stator heat pipe 7-3-1 and the second stator heat pipe 7-3-2 all circumflexions, be arranged in the groove on the two sides of stator 4 respectively; After first stator heat pipe 7-3-1 and the second stator heat pipe 7-3-2 rounds around the groove of stator 4 two sides respectively then in the hole slot that the dead axle 5 bending towards axle center is arranged, stretch out rear end cap 6, bend along dead axle 5, form the radiating end of heat pipe, two radiating ends of stator heat pipe stretch into around in the stator radiating fin 8-3 of dead axle 5 setting; As shown in figure 14, radiating fin 8-3 adopts Circular Thin fin, fin has 2mm louvre, and each layer fin interval is even, about 10-15 layer, and form donut structure, the radiating end of radiating fin 8-3 and stator heat pipe 7-3 adopts and is welded to connect.The amount of heat that stator 4 produces carries out heat conduction by the first stator heat pipe 7-3-1 in groove, the second stator heat pipe 7-3-2, stator heat pipe 7-3 radiating end is provided with circular stator radiating fin 8-3, heat is delivered on stator radiating fin 8-3 by stator heat pipe 7-3, then carries out heat convection with outside air thus distribute the heat of stator 4.The cross section of the groove that the two sides of stator are provided with is limited to circle or semicircle, and circular or half diameter of a circle in cross section is 6mm.
As shown in Fig. 1,2,5,6, the outer surface of wheel hub motor front end housing 1 is provided with and is circumferentially at least provided with a circle groove, is provided with front end housing heat pipe 7-1 in groove, and the outer surface of wheel hub motor front end housing 1 is also circumferentially evenly arranged polylith first front end housing radiating fin 8-1; First front end housing radiating fin 8-1 and front end housing heat pipe 7-1 adopts and is welded to connect; The material of the first front end housing radiating fin 8-1 is aluminum alloy materials, and thickness is at about 2mm.The cross section of the first front end housing radiating fin 8-1 is rectangle, rectangle has louvre, first front end housing radiating fin 8-1 radially forms different layers from inside to outside, it is fork row arrangement between the fin of adjacent layer, air flow turbulence degree can be increased, reasonable Arrangement louvre, be conducive at minimizing consumptive material, but heat transfer free convection is strengthened while minimizing area of dissipation, increase heat dissipation capacity, the bottom of the first front end housing radiating fin 8-1 is provided with the semi-circular hole of 6mm, for being connected with the heat pipe of front end housing shown in Fig. 5 7-1.
As shown in Figure 9, Figure 10, each salient pole of rotor 2 is provided with at least one groove, is provided with rotor heat pipe 7-2 in groove; Rotor heat pipe 7-2 is loop structure, joining end to end of heat pipe; Preferred each salient pole is provided with 2 grooves.The heat that rotor 2 produces is conducted by rotor heat pipe 7-2, rotor heat pipe 7-2 absorbs the heat that rotor 2 produces, the working solution heat absorption vaporization of heat pipe, condensation heat release is carried out near outer surface of motor, heat is delivered on the first front end housing radiating fin 8-1 by the front end housing heat pipe 7-1 on wheel hub motor front end housing 1 by heat again that be dispersed into outer surface, in vehicle traveling process, first front end housing radiating fin 8-1 is with front end housing high speed rotating, the closer to outside, speed is larger, centrifugal force is also larger, the air at center is tangentially thrown out of from space between fin, outside fin ambient air can form negative pressure owing to being thrown out of simultaneously, the air of center is supplemented endlessly, thus realize forced-convection heat transfer the heat Quick diffusing of hub motor shell is gone out, maintain the temperature that wheel hub motor is inner and shell is suitable, to ensure the normal work of motor.Visible, the heat radiation of the heat radiation of the present embodiment rotor and wheel hub motor front end housing forms coordinated effect, and make use of wheel hub motor work rotation feature.
The salient pole of rotor 2 is overrided to form by the punching silicon-steel that 0.5mm is thick, and silicon steel sheet both sides have the wide slotted eye of 6mm, then can form groove on salient pole after polylith punching silicon-steel laminates, and places rotor heat pipe 7-2 in groove.On each salient pole, equal close-fitting has rotor heat pipe, the heat of rotor can be delivered to motor housing to distribute the heat of rotor.
The main effect of bearing 3 is load capacity and provides accurate guiding for the rotation of wheel hub.Automobile in the process of moving, three-phase current is passed in the winding of stator 4, rotating magnetic field will be formed in the stator winding of motor after passing into electric current, owing to having installed permanent magnet on rotor 2, the magnetic pole of permanent magnet is fixing, according to the principle of the two like magnetic poles repel each other of magnetic pole, rotates under the rotating magnetic field effect that rotor produces at stator, rotor is fixed on front end housing, and front end housing to be connected with wheel hub by screw thus driving automobile advances.
The wheel hub motor of the present embodiment is similar to conventional boss motor, is bisalient-pole permanent-magnet synchronous machine.Unlike, hub motor shell, rotor and stator are furnished with multi-form heat pipe and/or fin, heat main for wheel hub motor is taken away by the heat pipe utilizing heat conduction excellent and the good fin that dispels the heat, forced-convection heat transfer is carried out with air, wheel hub motor heat dispersion is improved, maintains motor normal working temperature.
Automobile in the process of moving, stator 4, rotor 2 all can produce a large amount of heats, the heat of stator 4 is derived by stator heat pipe 7-3, the heat absorbing end of stator heat pipe 7-3 absorbs the heat of stator generation, heat is delivered to radiating end by working solution vaporization, radiating end heat pipe is welded with stator radiating fin 8-3, increases heat exchange area, by carrying out heat exchange with forcing ambient air convection current.The heat that rotor 2 produces is delivered to wheel hub motor front end housing 1 by rotor heat pipe 7-2 from rotor, and wheel hub motor front end cover 1 is provided with front end housing heat pipe 7-1 and the first front end housing radiating fin 8-1 simultaneously; Forced-convection heat transfer is carried out at the first front end housing radiating fin 8-1 and air.Therefore, realize the heat of motor to be dispersed into the external world rapidly by heat pipe and fin from stator, rotor, electric motor end cap three aspects, maintain the temperature that wheel hub motor is inner and shell is suitable, to ensure the normal work of motor.
Embodiment 2
As shown in Fig. 3, Fig. 4, a kind of constructional device strengthening wheel hub motor heat dispersion, mainly comprises wheel hub motor front end housing 1, rotor 2, bearing 3, stator 4, dead axle 5, wheel hub motor rear end cap 6, heat pipe and radiating fin.Described wheel hub motor is similar to conventional boss motor, is bisalient-pole permanent-magnet synchronous machine.Multi-form heat pipe or fin is furnished with unlike on hub motor shell, rotor and stator, heat main for wheel hub motor is taken away by the heat pipe utilizing heat conduction good and the fin of excellent heat radiation performance, forced-convection heat transfer is carried out with air, wheel hub motor heat dispersion is improved, maintains motor normal working temperature.
As different from Example 1, the present embodiment is provided with the second front end housing radiating fin 8-2 at wheel hub motor front end housing 1 to the present embodiment 2, and does not have front end housing heat pipe 7-1 and the first front end housing radiating fin 8-1 of embodiment 1.As shown in Figure 7, Figure 8, the second front end housing radiating fin 8-2 is cellular fin; Cellular fin is that regular hexagon hollow-core construction is interconnected and forms by multiple cross section; The height of cellular fin is 8-10mm, forms orthohexagonal every block plate and is provided with one or more aperture.The each heat exchange unit of the present embodiment is regular hexagon, and multiple heat exchange unit is covered with whole front end housing end face uniform sequentially; Cellular fin is according to bionics principle design, and this design can allow area of dissipation maximize, and can ensure that fin has enough intensity, to adapt to different vehicle condition simultaneously.The fin plate face of each heat exchange unit has aperture, air-flow is passed through, increase disturbance, enhanced heat exchange.
As Fig. 9, shown in Figure 10, the heat that rotor 2 produces is conducted by rotor heat pipe 7-2, rotor heat pipe 7-2 absorbs the heat that rotor 2 produces, working solution heat absorption vaporization in heat pipe, condensation heat release is carried out near outer surface of motor, the heat being dispersed into outer surface is dispelled the heat by the cellular second front end housing radiating fin 8-2 of wheel hub motor front end housing 1 again, in the neat driving process of automobile, second front end housing radiating fin 8-2 has larger area density, area of dissipation is very large, heat be uniformly transferred to honeycomb fin from motor housing each on the surface, due to the effect of negative pressure and centrifugal force, the air-flow of high-speed motion flows through from the louvre honeycomb face, increase flow perturbation, enhanced heat exchange performance, thus realize forced-convection heat transfer the heat Quick diffusing of hub motor shell transmission is gone out, maintain the temperature that wheel hub motor is inner and shell is suitable, to ensure the normal work of motor.
The present embodiment bearing 3, stator 4, dead axle 5, stator heat pipe 7-3 are identical with embodiment 1 with the structure of stator radiating fin 8-3.
For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Any amendment done within all spirit in the design and principle, equivalently to replace and improvement etc., within the protection range that all should be contained in the claims in the present invention.

Claims (10)

1. strengthen a device for wheel hub motor heat dispersion, mainly comprise wheel hub motor front end housing, rotor, bearing, stator, dead axle and wheel hub motor rear end cap; Wheel hub motor front end housing and wheel hub motor rear end cap form motor housing; Rotor comprises multiple salient pole, and salient pole material is permanent magnet, and multiple salient pole interval is fixed on described wheel hub motor front end housing circumferential inner wall; Stator is arranged in the face of cylinder of described salient pole formation, and keeps spacing between salient pole; Stator is connected with dead axle by bearing; It is characterized in that, the two sides of described stator are provided with groove; Stator heat pipe comprises heat absorbing end and radiating end, and heat absorbing end comprises the first stator heat pipe and the second stator heat pipe; First stator heat pipe and the second stator heat pipe all circumflexion structures, be arranged in the groove on the two sides of stator respectively; Bend towards in the hole slot that the dead axle in axle center is arranged after first stator heat pipe and the second stator heat pipe round around the groove of stator two sides respectively, rear end cap is stretched out after dead axle extends, then bend respectively up and down, form two radiating ends, two radiating ends of stator heat pipe all stretch into around in the stator radiating fin of dead axle setting;
The outer surface of described wheel hub motor front end housing is provided with radiating fin, or the outer surface of described wheel hub motor front end housing is provided with the radiator structure that radiating fin coordinates with heat pipe;
Each salient pole of described rotor is provided with at least one groove, is provided with rotor heat pipe in groove; Rotor heat pipe is loop structure, joining end to end of heat pipe.
2. the device of strengthening wheel hub motor heat dispersion according to claim 1, it is characterized in that: it is be provided with at the outer surface of wheel hub motor front end housing to be circumferentially at least provided with a circle groove that the outer surface of described wheel hub motor front end housing is provided with the radiator structure that radiating fin coordinates with heat pipe, be provided with front end housing heat pipe in groove, the outer surface of wheel hub motor front end housing is also circumferentially evenly arranged polylith first front end housing radiating fin; First front end housing radiating fin is connected with front end housing heat pipe.
3. the device of strengthening wheel hub motor heat dispersion according to claim 2, is characterized in that: the material of described first front end housing radiating fin is aluminum alloy materials, and thickness is 1.5-2.5mm; The cross section of the first front end housing radiating fin is rectangle, and rectangle has louvre, and the bottom of the first front end housing radiating fin is provided with the semi-circular hole of 6mm.
4. the device of the strengthening wheel hub motor heat dispersion according to Claims 2 or 3, is characterized in that: described first front end housing radiating fin radially forms different layers from inside to outside, is fork row arrangement between the fin of adjacent layer.
5. the device of strengthening wheel hub motor heat dispersion according to claim 1, is characterized in that: described first front end housing radiating fin and front end housing heat pipe adopted tight fit or be welded to connect.
6. the device of strengthening wheel hub motor heat dispersion according to claim 1, is characterized in that: the radiating fin that the outer surface of described wheel hub motor front end housing is provided with is cellular fin; Cellular fin is that regular hexagon hollow-core construction is interconnected and forms by multiple cross section; The height of cellular fin is 8-10mm, forms orthohexagonal every block plate and is provided with one or more aperture.
7. the device of strengthening wheel hub motor heat dispersion according to claim 1, is characterized in that: described stator radiating fin adopts Circular Thin fin, fin has 2mm louvre, and each layer fin interval is even, is 10-15 layer, forms donut structure.
8. the device of strengthening wheel hub motor heat dispersion according to claim 1, is characterized in that: the radiating end of described stator radiating fin and stator heat pipe adopted tight fit or was welded to connect.
9. the device of strengthening wheel hub motor heat dispersion according to claim 1, is characterized in that: described salient pole is overrided to form by the punching silicon-steel that 0.5mm is thick.
10. the device of strengthening wheel hub motor heat dispersion according to claim 1, is characterized in that: the cross section of the groove that the two sides of described stator are provided with is for circular or semicircle, and circular or half diameter of a circle in cross section is 6mm.
CN201511019548.1A 2015-12-28 2015-12-28 A kind of device for strengthening wheel hub motor heat dissipation performance Expired - Fee Related CN105515227B (en)

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WO2018107501A1 (en) * 2016-12-14 2018-06-21 华南理工大学 Vehicle electric motor stator assembly with high thermal conductivity based on 3d phase transition heat pipe technology
CN109691906A (en) * 2017-10-23 2019-04-30 佛山市顺德区美的电热电器制造有限公司 Disk, stirring toolbox and food cooking machine
WO2019105344A1 (en) * 2017-11-29 2019-06-06 上海翼锆自动化科技有限公司 Outer rotor brushless motor with heat dissipating device
CN111030340A (en) * 2019-12-31 2020-04-17 南京师范大学 Motor rotor structure based on metal three-dimensional printing, motor rotor, motor and method
TWI694662B (en) * 2018-07-23 2020-05-21 大陸商昆山廣興電子有限公司 Motor and its rotor
CN112350496A (en) * 2020-10-29 2021-02-09 佛山科学技术学院 Direct-current brushless motor with heat dissipation device
CN112366855A (en) * 2020-11-12 2021-02-12 李登洋 Method for externally rotating gear motor
WO2021217881A1 (en) * 2020-04-30 2021-11-04 北京理工大学 Active heat dissipation joint and bionic robot comprising said active heat dissipation joint
CN113937956A (en) * 2020-06-29 2022-01-14 比亚迪股份有限公司 Wheel hub motor heat radiation structure and car

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WO2018107501A1 (en) * 2016-12-14 2018-06-21 华南理工大学 Vehicle electric motor stator assembly with high thermal conductivity based on 3d phase transition heat pipe technology
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CN109691906A (en) * 2017-10-23 2019-04-30 佛山市顺德区美的电热电器制造有限公司 Disk, stirring toolbox and food cooking machine
WO2019105344A1 (en) * 2017-11-29 2019-06-06 上海翼锆自动化科技有限公司 Outer rotor brushless motor with heat dissipating device
TWI694662B (en) * 2018-07-23 2020-05-21 大陸商昆山廣興電子有限公司 Motor and its rotor
CN111030340A (en) * 2019-12-31 2020-04-17 南京师范大学 Motor rotor structure based on metal three-dimensional printing, motor rotor, motor and method
WO2021217881A1 (en) * 2020-04-30 2021-11-04 北京理工大学 Active heat dissipation joint and bionic robot comprising said active heat dissipation joint
CN113937956A (en) * 2020-06-29 2022-01-14 比亚迪股份有限公司 Wheel hub motor heat radiation structure and car
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CN112366855A (en) * 2020-11-12 2021-02-12 李登洋 Method for externally rotating gear motor

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