CA2621599A1 - In-wheel motor arrangement - Google Patents
In-wheel motor arrangement Download PDFInfo
- Publication number
- CA2621599A1 CA2621599A1 CA002621599A CA2621599A CA2621599A1 CA 2621599 A1 CA2621599 A1 CA 2621599A1 CA 002621599 A CA002621599 A CA 002621599A CA 2621599 A CA2621599 A CA 2621599A CA 2621599 A1 CA2621599 A1 CA 2621599A1
- Authority
- CA
- Canada
- Prior art keywords
- motor
- rotor
- rim
- stator
- wheel
- 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.)
- Abandoned
Links
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
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- 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
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
-
- 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
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
-
- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/12—Dynamic electric regenerative braking for vehicles propelled by dc motors
-
- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
- B60L7/26—Controlling the braking effect
-
- 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
- H02K1/14—Stator cores with salient poles
- H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
-
- 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
-
- 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
- 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
- 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
- B60L2240/423—Torque
-
- 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
- B60L2260/00—Operating Modes
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/28—Four wheel or all wheel drive
-
- 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
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Electric in-wheel motors to date are made by installing a typical electric motor on a wheel. The said motor includes the stator, rotor and tire rim connected together by a sealed bearing.
In this invention the motor bearing is eliminated and the stator and rotor are attached to separate rims: the rotor rim is sandwiched between the tire rim and the brake, and the stator rim is sandwiched between the suspension frame and the brake. In this way the installation and construction of the motor is simplified by using the existing bearing of the wheel. The stator, being the fixed part of the motor containing the coils is sealed separately from the rotor containing the magnets.
The motor is designed on an open and simple architecture that eliminates bearings, bearing seals, cooling liquid access thru the bearing core, and allows for a simple method of heat dissipation.
In this invention the motor bearing is eliminated and the stator and rotor are attached to separate rims: the rotor rim is sandwiched between the tire rim and the brake, and the stator rim is sandwiched between the suspension frame and the brake. In this way the installation and construction of the motor is simplified by using the existing bearing of the wheel. The stator, being the fixed part of the motor containing the coils is sealed separately from the rotor containing the magnets.
The motor is designed on an open and simple architecture that eliminates bearings, bearing seals, cooling liquid access thru the bearing core, and allows for a simple method of heat dissipation.
Description
Disclosure This invention relates to the electrical propulsion of a vehicle wheel.
Electric in-wheel motors typically includes the stator, rotor and tire rim connected together by a sealed bearing that keeps the dirt and water out and keeps the cooling liquid in.
In this invention the motor bearing is eliminated and the stator and rotor are attached to separate rims that get sandwiched between the tire rim and the brake for the rotor, and the suspension frame and the brake for the stator, so the installation and construction of the motor is simplified by using the existing bearing of a wheel. Air, dirt and water are allowed to flow around the stator and rotor being both surrounded by a jacket of metal or polymer. The cooling of the coils happens in the jacket surrounding them in the fixed part of the motor and tubes of coolant medium are attached to the said jacket.
The said invention proposes to simplify the conversion to electric propulsion of a gas driven car, or the adaptation of electric propulsion of new vehicle, and provide the advantages of parallel hybrid and plug-in hybrid and pure electric propulsion to that vehicle, including the use of economical and efficient electrical driven power, zero emission and regenerative braking.
Figure 1 of the drawings show the cross section of the embodiment while figure is a detailed partial cross section. Figure 3 and 4 shows alternate arrangements of the in-wheel motor. Figure 5 is an isometric exploded view of the said motor and figure 6 is an isometric partial section of the in-wheel motor assembly with the stator jacket and brake not shown for clarity.
As shown in figure 1 and 2, the said in-wheel motor comprises of a stator (6) containing coils and a cooling jacket (7), which is attached to an interior, fixed rim (stator mount 8) bolted-on between the suspension frame (wheel mount 9) &
the fixed drum brake (5). The rotor (2) containing magnets are attached to a rim (rotor mount 4) bolted-on between the wheel rim (1) & the drum brake (5).
The magnets (rotor 2) are arranged in a circular flat ring concentric and peripheral to the drum brake (5) and are attached to a circular mount plate (rotor mount 4), sandwiched between the rim (1) and the drum rotating brake housing (5).
The stator (6) is a sealed brush-less array of coils and steel, concentric and peripheral to the rotor magnets (2), arranged in a thin ring with a cooling jacket (7) surrounding the outer layer, attached to a circular plate with spokes that attaches the stator (stator mount 8) between the wheel suspension arm bearing mount (wheel mount 9) and the drum brake fixed housing (5).
The rotor magnets (2) are sealed from the elements with a metal or polymer jacket (3) independently form the fixed stator (6), which in turn is sealed with a metal or polymer jacket (7) that contains the cooling liquid or fan forced air, which is flowing between the sealed coils. An edge on the periphery of the rotor restricts the entry of particles between the rotor and stator.
The cooling liquid or fan forced air is channeled to a close circuit conduit (10) attached to the outer perimeter of the stator (6) and linked to a typical fan-cooled radiator or a fan for air cooling. The said cooling jacket (12) is situated in the hottest point of the motor, while the magnets (rotor 2) and mechanical brake (5) are cooled by the surrounding air. The liquid or air in the fixed cooling jacket is easily conducted with tubes (10) to a cooling unit (not shown) without having to pass thru rotating seals. Similarly the electric wires (11) off the coil extremities arranged a ring are easily connected to a control box (not shown).
In figure 3, the said in-wheel motor is arranged in the same manner as previously described except that the rotor (2) is peripheral to the stator (6).
In figure 4, the said in-wheel motor is arranged in the same manner as in figure 3 except that the rotor (2) is attached to a ring (4) concentric and peripheral to stator (6) that is attached to the tire rim (1) or is part of the said rim.
The proposed wheel-motor simplifies the manufacturing, mass-production, and installation of electric wheel propulsion, eliminating some major motor components and maintenance while using the existing rolling elements of the wheel.
Electric in-wheel motors typically includes the stator, rotor and tire rim connected together by a sealed bearing that keeps the dirt and water out and keeps the cooling liquid in.
In this invention the motor bearing is eliminated and the stator and rotor are attached to separate rims that get sandwiched between the tire rim and the brake for the rotor, and the suspension frame and the brake for the stator, so the installation and construction of the motor is simplified by using the existing bearing of a wheel. Air, dirt and water are allowed to flow around the stator and rotor being both surrounded by a jacket of metal or polymer. The cooling of the coils happens in the jacket surrounding them in the fixed part of the motor and tubes of coolant medium are attached to the said jacket.
The said invention proposes to simplify the conversion to electric propulsion of a gas driven car, or the adaptation of electric propulsion of new vehicle, and provide the advantages of parallel hybrid and plug-in hybrid and pure electric propulsion to that vehicle, including the use of economical and efficient electrical driven power, zero emission and regenerative braking.
Figure 1 of the drawings show the cross section of the embodiment while figure is a detailed partial cross section. Figure 3 and 4 shows alternate arrangements of the in-wheel motor. Figure 5 is an isometric exploded view of the said motor and figure 6 is an isometric partial section of the in-wheel motor assembly with the stator jacket and brake not shown for clarity.
As shown in figure 1 and 2, the said in-wheel motor comprises of a stator (6) containing coils and a cooling jacket (7), which is attached to an interior, fixed rim (stator mount 8) bolted-on between the suspension frame (wheel mount 9) &
the fixed drum brake (5). The rotor (2) containing magnets are attached to a rim (rotor mount 4) bolted-on between the wheel rim (1) & the drum brake (5).
The magnets (rotor 2) are arranged in a circular flat ring concentric and peripheral to the drum brake (5) and are attached to a circular mount plate (rotor mount 4), sandwiched between the rim (1) and the drum rotating brake housing (5).
The stator (6) is a sealed brush-less array of coils and steel, concentric and peripheral to the rotor magnets (2), arranged in a thin ring with a cooling jacket (7) surrounding the outer layer, attached to a circular plate with spokes that attaches the stator (stator mount 8) between the wheel suspension arm bearing mount (wheel mount 9) and the drum brake fixed housing (5).
The rotor magnets (2) are sealed from the elements with a metal or polymer jacket (3) independently form the fixed stator (6), which in turn is sealed with a metal or polymer jacket (7) that contains the cooling liquid or fan forced air, which is flowing between the sealed coils. An edge on the periphery of the rotor restricts the entry of particles between the rotor and stator.
The cooling liquid or fan forced air is channeled to a close circuit conduit (10) attached to the outer perimeter of the stator (6) and linked to a typical fan-cooled radiator or a fan for air cooling. The said cooling jacket (12) is situated in the hottest point of the motor, while the magnets (rotor 2) and mechanical brake (5) are cooled by the surrounding air. The liquid or air in the fixed cooling jacket is easily conducted with tubes (10) to a cooling unit (not shown) without having to pass thru rotating seals. Similarly the electric wires (11) off the coil extremities arranged a ring are easily connected to a control box (not shown).
In figure 3, the said in-wheel motor is arranged in the same manner as previously described except that the rotor (2) is peripheral to the stator (6).
In figure 4, the said in-wheel motor is arranged in the same manner as in figure 3 except that the rotor (2) is attached to a ring (4) concentric and peripheral to stator (6) that is attached to the tire rim (1) or is part of the said rim.
The proposed wheel-motor simplifies the manufacturing, mass-production, and installation of electric wheel propulsion, eliminating some major motor components and maintenance while using the existing rolling elements of the wheel.
Claims (5)
1. An electric in-wheel motor that uses the existing bearings, tire rim and brake of a vehicle wheel, and comprises of a stator rim that is secured between the brake and the suspension arm, and a rotor rim that is secured between the brake drum and tire rim of the vehicle.
2. A motor as described in claim 1 that uses a rotor rim which is a circular metal plate with spokes that connect the magnets arranged in a ring concentric to the vehicle brake.
3. A motor as described in claim 1 and claim 2 that uses a stator rim which is a circular metal plate with spokes that connect the coils and cooling jacket and arranged in a ring concentric to the rotor rim and the vehicle brake.
4. An electric in-wheel motor that uses a rotor mounting ring that is a circular metal or polymer body that connects the rotor magnets in their periphery to the tire rim of a vehicle or is part of the said rim.
5. A motor as described in claim 1,2,3 and 4 that contains a cooling jacket of water or air that is sealed around the coils.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CA002621599A CA2621599A1 (en) | 2008-02-19 | 2008-02-19 | In-wheel motor arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002621599A CA2621599A1 (en) | 2008-02-19 | 2008-02-19 | In-wheel motor arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2621599A1 true CA2621599A1 (en) | 2009-08-19 |
Family
ID=40983661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002621599A Abandoned CA2621599A1 (en) | 2008-02-19 | 2008-02-19 | In-wheel motor arrangement |
Country Status (1)
Country | Link |
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CA (1) | CA2621599A1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011107815A1 (en) * | 2010-03-04 | 2011-09-09 | Cinetic Sorting S.P.A. | Sorting machine with electrical alternators in supporting wheels |
WO2013004411A1 (en) * | 2011-07-07 | 2013-01-10 | Schaeffler Technologies AG & Co. KG | Stator holding plate with phase-conducting function |
CN103029564A (en) * | 2011-09-29 | 2013-04-10 | 日产自动车株式会社 | In-wheel motor drive unit |
WO2013180663A3 (en) * | 2012-05-29 | 2014-03-06 | ELAPHE pogonske tehnologije, d.o.o. | Simple and accurate to assemble in-wheel electric motor |
ITMI20132161A1 (en) * | 2013-12-20 | 2015-06-21 | Freni Brembo Spa | WHEEL ASSEMBLY WITH A VEHICLE ENGINE |
CN105329088A (en) * | 2014-08-08 | 2016-02-17 | 上海劲马车辆有限公司 | Driving motor-contained wheel hub system for pure electric automobile |
CN105751886A (en) * | 2016-02-24 | 2016-07-13 | 绿擎智创汽车科技(苏州)有限公司 | New energy automobile hub motor power assembly driving system |
GB2534895A (en) * | 2015-02-04 | 2016-08-10 | Protean Electric Ltd | A bearing arrangement for an electric motor or generator |
CN106938588A (en) * | 2016-01-04 | 2017-07-11 | 宁波高新区清水绿山环保科技有限公司 | A kind of shaftless Electricmotor car wheel |
CN108312853A (en) * | 2018-04-02 | 2018-07-24 | 常熟理工学院 | A kind of braking deceleration power generator for rigid drive axle |
CN111030350A (en) * | 2019-12-30 | 2020-04-17 | 东风汽车集团有限公司 | Integrated central charging and discharging electric hub |
CN111162648A (en) * | 2020-01-21 | 2020-05-15 | 同济大学 | Labyrinth dynamic seal inner rotor hub motor structure |
CN111162630A (en) * | 2020-01-21 | 2020-05-15 | 同济大学 | Magnetic dynamic seal inner rotor hub motor structure |
CN111193347A (en) * | 2020-01-21 | 2020-05-22 | 同济大学 | Combined dynamic seal inner rotor hub motor driving device |
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DE102019206270A1 (en) * | 2019-05-02 | 2020-11-05 | Volkswagen Aktiengesellschaft | Cooling device for cooling a stator of a wheel hub motor of a vehicle, a vehicle wheel and a method for cooling a stator of a wheel hub motor of a vehicle wheel |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |