CN115296482B - Hub motor with axial magnetic flux built-in planetary reducer - Google Patents

Hub motor with axial magnetic flux built-in planetary reducer Download PDF

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Publication number
CN115296482B
CN115296482B CN202211194864.2A CN202211194864A CN115296482B CN 115296482 B CN115296482 B CN 115296482B CN 202211194864 A CN202211194864 A CN 202211194864A CN 115296482 B CN115296482 B CN 115296482B
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China
Prior art keywords
end cover
bearing
motor
axial
engaging portion
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CN115296482A (en
Inventor
刘顺
刘霄
华永通
邹光华
雷海峰
李海华
田小丰
陈起旭
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Shenzhen Xiaoxiang Electric Technology Co ltd
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Shenzhen Xiaoxiang Electric Technology Co ltd
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    • 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
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • 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
    • 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
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2796—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the rotor face a stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/04—Machines with one rotor and two stators
    • 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
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12—Transversal flux machines
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Retarders (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention provides an axial magnetic flux hub motor with a built-in planetary speed reducer, which is used for solving the problem that the axial size of the hub motor with the built-in planetary speed reducer is overlarge. Specifically, the hub motor comprises a first end cover, a second end cover and a planetary reduction mechanism clamped between the first end cover and the second end cover; the planetary speed reducing mechanism comprises a sun wheel, a plurality of planet wheels and an outer gear ring, wherein an axial flux motor is arranged in the sun wheel, the axial flux motor is of a double-stator single-rotor structure, a central rotor of the axial flux motor is fixed in the sun wheel, and stators on two sides of the axial flux motor are respectively fixed on a first end cover and a second end cover; the first end cover is provided with a first bearing and a second bearing, and is in rotating fit with the outer gear ring through the first bearing and is in rotating fit with the sun wheel through the second bearing; and the second end cover is provided with a third bearing and a fourth bearing, and is in running fit with the outer gear ring through the third bearing and is in running fit with the sun wheel through the fourth bearing.

Description

Hub motor with axial magnetic flux built-in planetary reducer
Technical Field
The invention relates to the technical field of hub motors, in particular to a hub motor with an axial magnetic flux built-in planetary reducer.
Background
An axial flux machine (also called a "disc machine") has a flux path different from that of a conventional radial machine, and the air gap is planar, and the direction of the air gap field is parallel to the axial direction of the machine. The core technical advantage of an axial flux machine is that the rotor is located on the side of the stator (rather than inside the stator) in a configuration such that the rotor has a larger diameter size, while torque = force x radius, thus enabling higher torque output with the same force.
According to the number of the stators and the rotors, the relative positions and the classification of the main magnetic circuit, the basic topological structures of the axial flux motor can be divided into 4 types, namely a single-stator single-rotor structure, a double-stator single-rotor structure, a single-stator double-rotor structure and a multi-disc structure, and 2 structural topologies of a double-stator single-rotor and a single-stator double-rotor are commonly used in the hub motor. As shown in fig. 1, an existing common hub motor with a planetary reduction mechanism is shown, and the planetary reduction mechanism, the hub and the motor main body of the hub motor are axially arranged, so that the axial size of the whole machine is large, and accordingly, the required installation space is also large, which limits the application range of the hub motor with reduction, and is not favorable for popularization and application of the hub motor with reduction.
Therefore, an improvement of an in-wheel motor incorporating a planetary reduction gear is required.
Disclosure of Invention
The invention provides an in-wheel motor with an axial magnetic flux built-in planetary reducer, which is used for solving the problem of overlarge axial size of the in-wheel motor.
The technical scheme of the invention is as follows:
a hub motor with a built-in planetary reducer for axial magnetic flux comprises a first end cover, a second end cover and a planetary reduction mechanism clamped between the first end cover and the second end cover; the planetary speed reducing mechanism comprises a sun gear, a plurality of planet gears and an outer gear ring, wherein an axial flux motor is arranged in the sun gear, the axial flux motor is of a double-stator single-rotor structure, a central rotor of the axial flux motor is fixed in the sun gear, and stators on two sides of the axial flux motor are respectively fixed on the first end cover and the second end cover;
the first end cover is provided with a first bearing and a second bearing, and is in rotating fit with the outer gear ring through the first bearing and is in rotating fit with the sun wheel through the second bearing; and the second end cover is provided with a third bearing and a fourth bearing, and is in running fit with the outer gear ring through the third bearing and is in running fit with the sun wheel through the fourth bearing.
Optionally, the rotor of the axial flux motor is a center hub, and a first magnet and a second magnet are respectively disposed on two sides of the center hub.
Optionally, the center hub body and the sun gear are one piece.
Optionally, the stator of the axial flux motor is a stator winding, and includes a first stator winding embedded in the inner side surface of the first end cap and a second stator winding embedded in the inner side surface of the second end cap.
Optionally, a first annular clamping groove is formed in the periphery of the first end cover, a second annular clamping groove is formed in the periphery of the second end cover, the inner ring of the first bearing is clamped in the first annular clamping groove, and the inner ring of the third bearing is clamped in the second annular clamping groove.
Optionally, a first annular protrusion is convexly arranged on the inner side surface of the first end cover, a second annular protrusion is convexly arranged on the inner side surface of the second end cover, the inner ring of the second bearing is clamped outside the first annular protrusion, and the inner ring of the fourth bearing is clamped outside the second annular protrusion.
Optionally, the first end cover and the second end cover are provided with a first jack and a second jack corresponding to each planet gear, and two ends of a middle shaft of each planet gear are respectively inserted into the first jack and the second jack.
Optionally, a first clamping portion is disposed in the center of the first end cover, a second clamping portion is disposed in the center of the second end cover, and the first end cover and the second end cover are connected together by clamping of the first clamping portion and the second clamping portion.
Optionally, the front end of the first engaging portion has a prism arranged along the axial direction thereof, the front end of the second engaging portion is concavely provided with a groove corresponding to the prism, and the first engaging portion and the second engaging portion are engaged by engaging the prism with the groove.
Optionally, the first clamping portion and the second clamping portion are locked by bolts.
The invention provides a hub motor, which comprises a first end cover, a second end cover and a planetary reduction mechanism clamped between the first end cover and the second end cover; the planetary speed reducing mechanism comprises a sun gear, a plurality of planet gears and an outer gear ring, wherein an axial flux motor is arranged in the sun gear, the axial flux motor is of a double-stator single-rotor structure, a central rotor of the axial flux motor is fixed in the sun gear, and stators on two sides of the axial flux motor are respectively fixed on a first end cover and a second end cover. The first end cover is provided with a first bearing and a second bearing, and is in running fit with the outer gear ring through the first bearing and is in running fit with the sun wheel through the second bearing; and the second end cover is provided with a third bearing and a fourth bearing, and is in running fit with the outer gear ring through the third bearing and in running fit with the sun wheel through the fourth bearing. Therefore, the axial magnetic motor is equivalently integrated on the sun gear of the planetary reduction mechanism, and the motor part and the planetary reduction mechanism part are matched in the radial direction, so that the flattening, the compacting and the light weight of the hub motor are facilitated, and the oversize of the axial size of the hub motor is avoided; meanwhile, the first end cover and the second end cover on two sides of the planetary speed reducing mechanism are connected with the planetary speed reducing mechanism through the axial flux motor, and can support an outer gear ring of the planetary speed reducing mechanism, so that the structural strength of the hub motor is ensured. And, the stator part of axial flux motor directly laminates with the end cover, is favorable to the stator heat dissipation.
Drawings
Fig. 1 is a schematic structural diagram of a conventional hub motor with a planetary reduction mechanism;
fig. 2 is an exploded view of an embodiment of the present invention.
FIG. 3 is a schematic structural diagram of a center hub according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of the first end cap according to an embodiment of the invention.
Fig. 5 is a schematic structural diagram of a second end cap according to an embodiment of the invention.
FIG. 6 is a partial cross-sectional view of an embodiment of the invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
As shown in fig. 2 to 6, the hub motor of the axial magnetic flux built-in planetary reducer provided by the present invention includes a first end cover 10, a second end cover 20, and a planetary reduction mechanism interposed between the first end cover 10 and the second end cover 20. The planetary reduction mechanism includes a sun gear 30a, a plurality of planetary gears 33, and an outer ring gear 32, and the planetary gears 33 are located between the sun gear 30a and the outer ring gear 32, and mesh with the outer ring gear 32 and the sun gear 30 a.
A center hub 30 is provided in the sun gear 30a, and a first magnet 31 and a second magnet are provided on both sides of the center hub 30. The first stator winding 13 and the second stator winding 23 corresponding to the first magnet 31 and the second magnet are arranged on the inner side surfaces of the first end cover 10 and the second end cover 20, so that the hub body 30, the first end cover 10 and the second end cover 20 are combined to form an axial flux motor, the axial flux motor is embedded in the sun gear 30a and forms radial fit with the planetary reduction mechanism, the axial size of the hub motor can be smaller, and the hub motor is flattened, compacted and lightened.
In the present embodiment, the first end cap 10 is provided with a first bearing 11 and a second bearing 12 which are concentrically arranged, the second end cap 20 is provided with a third bearing 21 and a fourth bearing 22 which are concentrically arranged, the first end cap 10 is rotationally engaged with the outer ring gear 32 and the sun gear 30a of the planetary reduction mechanism through the first bearing 11 and the second bearing 12, respectively, and the second end cap 20 is rotationally engaged with the outer ring gear 32 and the sun gear 30a of the planetary reduction mechanism through the first bearing 11 and the second bearing 12, respectively. Specifically, a first annular groove is formed in the periphery of the first end cap 10, a first annular protrusion 10a is convexly arranged on the inner side surface of the first end cap 10, the inner ring of the first bearing 11 is clamped in the first annular groove, the inner ring of the second bearing 12 is clamped outside the first annular protrusion 10a, and the outer ring of the first bearing 11 is embedded in the left inner ring groove of the outer gear ring 32, so that the first end cap 10 and the planetary reduction gear are rotatably matched. Similarly, a second annular clamping groove is formed in the periphery of the second end cover 20, a second annular protrusion 20a is convexly arranged on the inner side face of the second end cover 20, the inner ring of the second bearing 12 is clamped in the second annular clamping groove, the inner ring of the second bearing 12 is clamped outside the second annular protrusion 20a, and meanwhile the outer ring of the second bearing 12 is embedded in the right inner ring clamping groove of the outer gear ring 32, so that the second end cover 20 is in running fit with the planetary reduction mechanism. In addition, the first end cap 10 and the second end cap 20 can also play a good supporting role for the outer gear ring 32 of the planetary reduction mechanism, and the structural strength of the in-wheel motor is ensured.
In this embodiment, the first end cap 10 and the second end cap 20 are provided with a first insertion hole 10d and a second insertion hole 20d corresponding to each planetary gear 33, so that two ends of the central axis of each planetary gear 33 are respectively inserted into the first insertion hole 10d and the second insertion hole 20 d. A needle bearing is arranged in a center hole of the planet wheel 33, and a middle shaft is inserted in the needle bearing and is in running fit with the planet wheel 33. Therefore, the first end cap 10 and the second end cap 20 can not only support the outer ring gear 32, but also fix the planet gears 33 as a planet carrier, thereby simplifying the structure of the in-wheel motor.
In the present embodiment, the center hub 30 and the sun gear 30a are an integral component, so as to reduce the number of structural components of the hub motor and facilitate the assembly of the motor.
In the present embodiment, a first engaging portion 10b is provided at the center of the first end cap 10, a second engaging portion 20b is provided at the center of the second end cap 20, and accordingly, a relief hole is provided at the center of the center hub 30. When assembling, the first and second end caps 10 and 20 can be connected by engaging the first and second engaging portions 10b and 20 b.
Preferably, the front end of the first engaging portion 10b is provided with a prism 10c arranged along the axial direction thereof, and the front end of the second engaging portion 20b is concavely provided with a groove 20c corresponding to the prism 10c, so that the first engaging portion 10b and the second engaging portion 20b can be engaged by the engagement of the prism 10c and the groove 20c, and the radial locking of the first end cap 10 and the second end cap 20 is completed.
Preferably, a bolt 2525 is disposed in the second engaging portion 20b, and the bolt 2525 is used to lock the second engaging portion 20b and the first engaging portion 10b together, so as to complete the axial locking of the first end cap 10 and the second end cap 20. The radial locking is matched, so that the first end cap 10 and the second end cap 20 can be effectively connected together.
In the present embodiment, an electromagnetic brake 40 is disposed between the first end cap 10 and the center hub 30 for braking the hub motor. An encoder 50 is disposed between the first end cap 10 and the center hub 30, and the encoder 50 can feed back the position and speed information of the motor to the motor driver, so that the driver can accurately control the motor.
In the present embodiment, the first and second fixed shafts 14 and 24 are provided on the first and second end caps 10 and 20, and a tire 34 is wrapped around the outer ring gear 32. In use, the first and second stationary axles 14, 24 are placed on the target device such that the first and second end caps 10, 20 are stationary relative to the target device; then, when the first stator winding 13 and the second stator winding 23 are electrified, a sinusoidal magnetic field is generated on the first stator winding 13 and the second stator winding 23, and the sinusoidal magnetic field interacts with the fixed magnetic fields of the first magnet 31 and the second magnet on the center hub body 30, so that the center hub body 30 rotates; the central hub body 30 drives the sun gear 30a to rotate, the sun gear 30a drives the planet gears 33 to rotate, and then the planet gears 33 drive the outer ring gear 32 to rotate, so that the tire 34 rotates.
It should be noted that the fixing shaft may be provided on the first end cap 10 and/or the second end cap 20 according to the requirement, and the fixing shaft is not limited to be provided on both the first end cap 10 and the second end cap 20.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The hub motor of the axial magnetic flux built-in planetary reducer is characterized by comprising a first end cover, a second end cover and a planetary reduction mechanism clamped between the first end cover and the second end cover; the planetary speed reducing mechanism comprises a sun gear, a plurality of planet gears and an outer gear ring, wherein an axial flux motor is arranged in the sun gear, the axial flux motor is of a double-stator single-rotor structure, a central rotor of the axial flux motor is fixed in the sun gear, and stators on two sides of the axial flux motor are respectively fixed on the first end cover and the second end cover; the first end cover is provided with a first bearing and a second bearing, and is in running fit with the outer gear ring through the first bearing and is in running fit with the sun wheel through the second bearing; be provided with third bearing and fourth bearing on the second end cover to through the third bearing with outer ring gear normal running fit, through the fourth bearing with sun gear normal running fit, the stator of axial flux motor is the stator winding, establish the first stator winding at first end cover medial surface and inlay the second stator winding of establishing at the second end cover medial surface including inlaying, the periphery of first end cover is provided with first ring groove, the periphery of second end cover is provided with second ring groove, the inner circle card of first bearing is established in first ring groove, the inner circle card of third bearing is established in second ring groove, the protruding first annular arch that is equipped with of medial surface of first end cover, the protruding second annular arch that is equipped with of medial surface of second end cover, the inner circle card of second bearing is established outside first annular arch, the inner circle card of fourth bearing is established outside second annular arch.
2. The hub motor of an axial-flux built-in planetary reducer according to claim 1, wherein the rotor of the axial-flux motor is a center hub, and a first magnet and a second magnet are respectively disposed on two sides of the center hub.
3. The in-wheel motor of an axial flux built-in planetary reducer of claim 2, wherein the center hub body and the sun gear are an integral piece.
4. The in-wheel motor of an axial magnetic flux built-in planetary reducer according to claim 1, wherein the first end cover and the second end cover are provided with a first jack and a second jack corresponding to each planetary gear, and two ends of a center shaft of each planetary gear are respectively inserted into the first jack and the second jack.
5. The in-wheel motor of an axial magnetic flux built-in planetary reducer according to claim 1, wherein a first engaging portion is provided at a center of the first end cover, a second engaging portion is provided at a center of the second end cover, and the first end cover and the second end cover are firmly connected together by engagement of the first engaging portion and the second engaging portion.
6. The hub motor of the axial-flux built-in planetary reducer according to claim 5, wherein a prism is axially arranged at a front end of the first engaging portion, a groove corresponding to the prism is concavely arranged at a front end of the second engaging portion, and the first engaging portion and the second engaging portion are engaged by engagement of the prism and the groove.
7. The in-wheel motor of an axial-flux built-in planetary reducer according to claim 6, wherein the first engaging portion and the second engaging portion are fastened by a bolt.
CN202211194864.2A 2022-09-29 2022-09-29 Hub motor with axial magnetic flux built-in planetary reducer Active CN115296482B (en)

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CN115296482B true CN115296482B (en) 2023-02-28

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CN116191767A (en) * 2023-01-04 2023-05-30 之江实验室 Joint motor capable of forced convection heat dissipation

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JP4724075B2 (en) * 2006-08-29 2011-07-13 本田技研工業株式会社 Wheel rotation device
CN203883613U (en) * 2014-05-16 2014-10-15 朱荣辉 Planet deceleration wheel hub motor
CN106208588B (en) * 2016-08-29 2019-01-11 眭华兴 A kind of hub motor with teeth with hydrodynamic lubrication oil lubrication
WO2019124152A1 (en) * 2017-12-18 2019-06-27 日本電産株式会社 In-wheel motor
JP7135246B2 (en) * 2018-05-31 2022-09-13 日本電産シンポ株式会社 IN-WHEEL MOTOR DRIVE AND VEHICLE INCLUDING THE SAME
CN110707871B (en) * 2019-11-06 2024-04-26 深圳小象鸿业机电有限公司 Forced air cooling disc type motor
CN211508831U (en) * 2019-12-25 2020-09-15 苏州绿控传动科技股份有限公司 Vehicle driving motor with built-in planet row speed reduction unit
CN211959028U (en) * 2020-03-13 2020-11-17 清华大学苏州汽车研究院（吴江） Axial magnetic field in-wheel motor assembly
CN216549148U (en) * 2021-11-24 2022-05-17 杭州西奥电梯有限公司 Two-in-one permanent magnet synchronous traction machine special for elevator

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