CN113799595A - Wheel assembly integrating hub motor, rim and brake - Google Patents
Wheel assembly integrating hub motor, rim and brake Download PDFInfo
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- CN113799595A CN113799595A CN202111252953.3A CN202111252953A CN113799595A CN 113799595 A CN113799595 A CN 113799595A CN 202111252953 A CN202111252953 A CN 202111252953A CN 113799595 A CN113799595 A CN 113799595A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0047—Hubs characterised by functional integration of other elements
- B60B27/0052—Hubs characterised by functional integration of other elements the element being a brake disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
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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
- H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
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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
- B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
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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
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
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- 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)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a wheel assembly integrating a hub motor, a rim and a brake, which comprises: a rim comprising a rim web and a tire mounting plate; a rotor including a rotor main body portion, a rotor web, a rotation shaft, and a plurality of permanent magnets; the rotor spoke plate, the rotor main body part and the rotating shaft are enclosed to form a circular accommodating cavity; the plurality of permanent magnets are fixedly arranged on the rotor main body part; wherein the rotor is coaxially arranged in the rim; the rotor wheel disk and the wheel rim wheel disk are detachably and fixedly connected; an annular bulge protruding towards the center direction of the rim is arranged on the inner wall of the rim mounting plate along the circumferential direction, and the annular bulge is in interference fit with the rotor main body; a stator including a stator bracket, a plurality of stator cores, and a plurality of motor windings; the stator support is coaxially arranged in the accommodating cavity, and the rotating shaft is rotatably supported in the stator support; a plurality of stator cores are fixedly arranged on the outer wall of the stator support, and the motor windings are wound on the stator cores in a one-to-one correspondence mode.
Description
Technical Field
The invention belongs to the technical field of electric wheel structures, and particularly relates to a wheel assembly integrating a hub motor, a rim and a brake.
Background
The electric wheel integrates the driving motor and the transmission braking device into the wheel hub, simplifies the speed changer, the clutch, the transmission shaft, the differential mechanism and the like in the traditional automobile, and directly transmits the driving force to the wheel, so that the space utilization rate and the transmission efficiency of the vehicle are greatly improved. Meanwhile, some technical difficulties are brought, the installation space is narrow, and the braking and steering arrangement is difficult; the integration level is too high, the wheel maintenance in the later period is difficult, and the electric wheel assembly needs to be disassembled; the large increase of the unsprung mass affects the vehicle stability; the heat dissipation of the hub motor and the brake disc is difficult, and the service life of the electric wheel and the braking efficiency of the whole vehicle are influenced.
Foreign scholars earlier develop researches for improving the problems of complex structure, narrow space in a vehicle, low energy utilization efficiency and the like of an electric vehicle driven by a centralized motor by utilizing electric wheel driving, and respective electric wheel integration schemes are provided by Mitsubishi, Michelin France, Protean in England and the like. The research institutions such as Jilin university, Tongji university, Tianjin Yiqi and Guangxi Chuo Qi in China begin to research the hub motor driving technology more than ten years ago. In recent years, the electric wheel driving technology has been applied to and achieved good effects in some electric vehicles.
The wheel hub motor is integrated in the wheel, and wheel hub motor and wheel degree of depth integration usually, nevertheless can cause the later stage wheel to dismantle the difficulty when maintaining, also do not benefit to the topological optimization make full use of intensity of material.
Disclosure of Invention
The invention aims to provide a wheel assembly integrating a hub motor, a rim and a brake, which is convenient for later maintenance and topology optimization of a wheel while ensuring high integration level.
The technical scheme provided by the invention is as follows:
a wheel assembly integrating an in-wheel motor with a rim and brake, comprising:
a rim comprising a rim web and a tire mounting plate;
the tire mounting plate is cylindrical and is arranged around the periphery of the rim web, and the rim web is fixedly connected to one end of the tire mounting plate;
a rotor including a rotor main body portion, a rotor web, a rotation shaft, and a plurality of permanent magnets;
the rotor main body part is cylindrical, and the rotating shaft and the rotor main body part are coaxially arranged; the rotor spoke plate is fixedly connected to the rotor main body part and one end of the rotating shaft; the rotor spoke plate, the rotor main body part and the rotating shaft are enclosed to form an annular accommodating cavity;
the permanent magnets are fixedly arranged on the rotor main body part and are distributed at intervals along the circumferential direction of the inner wall of the rotor main body part;
wherein the rotor is coaxially disposed within the rim; the rotor wheel disk is abutted against the wheel rim wheel disk and is detachably and fixedly connected with the wheel rim wheel disk;
an annular bulge protruding towards the center direction of the rim is arranged on the inner wall of the rim mounting plate along the circumferential direction, and the annular bulge is in interference fit with the rotor main body;
a stator including a stator bracket, a plurality of stator cores, and a plurality of motor windings;
wherein the stator bracket is coaxially arranged in the accommodating cavity, and the rotating shaft is rotatably supported in the stator bracket;
the plurality of stator cores are fixedly arranged on the outer wall of the stator support and are distributed at intervals along the circumferential direction of the outer wall of the stator support, and the motor windings are wound on the stator cores in a one-to-one correspondence mode.
Preferably, the rotor disk and the rim disk are connected through T-shaped bolts;
the rotor radial plate is provided with a rectangular groove, and a bolt head of the T-shaped bolt is in interference fit with the rectangular groove; and a screw rod of the T-shaped bolt simultaneously penetrates through the rotor wheel disk and the rim wheel disk and is connected with a nut arranged on the outer side of the rim wheel disk in a matching manner.
Preferably, the rim web has a circular central through hole; the center of the rotor spoke plate is provided with a circular convex part;
wherein the circular boss is disposed in the central through hole and is clearance-fitted with the central through hole.
Preferably, the stator frame comprises a stator frame main body part and a stator frame end cover;
the stator support main body part is cylindrical, and a hub bearing mounting hole is formed in the center of the stator support main body part;
wherein, a hub bearing is arranged on the rotating shaft and is supported in the hub bearing mounting hole through the hub bearing;
the stator support end cover is annular and is fixedly connected to one end of the stator support main body part around the outer circumference of the stator main body;
wherein the stator frame end cover is disposed opposite to the rotor web, and the stator frame end cover abuts against the other end of the rotor main body portion.
Preferably, the wheel assembly integrating the hub motor, the rim and the brake further comprises:
the brake disc is coaxially and fixedly sleeved on the rotating shaft;
a stator groove is coaxially formed in one side of the stator main body, and the stator groove and the stator support end cover are arranged on the same side; the brake disc is positioned in the stator groove; and
a brake caliper fixedly mounted on the stator body and located within the stator groove; the brake caliper is matched with the brake disc.
Preferably, the wheel assembly integrating the hub motor, the rim and the brake further comprises:
the first steering knuckle arm and the second steering knuckle arm are respectively detachably and fixedly connected to the stator support end cover and are arranged towards the direction of a vehicle body;
wherein the first track arm is connected to an upper cross arm of the vehicle suspension and the second track arm is connected to a lower cross arm of the vehicle suspension.
Preferably, the thickness of the second knuckle arm is greater than the thickness of the first knuckle arm.
Preferably, the wheel assembly integrating the hub motor, the rim and the brake further comprises:
and the cooling oil seal is fixedly sleeved on the stator bracket.
Preferably, the wheel assembly integrating the hub motor, the rim and the brake further comprises:
a first seal ring disposed between the rotor web and the stator frame main body portion; and
and a second seal ring disposed between the rotor body portion and the stator frame end cover.
Preferably, the brake disc is provided with a plurality of vent holes.
The beneficial effects of the invention are as follows:
(1) the wheel assembly integrating the hub motor, the rim and the brake is improved based on the conventional hub motor, and the rotor is redesigned to be detachably matched with the rim; the stator support redesign is integrated with knuckle arm, stopper, under the prerequisite of guaranteeing high integration, greatly reduced electronic round manufacturing and designing degree of difficulty and cost.
(2) According to the wheel assembly integrating the hub motor, the rim and the brake, provided by the invention, the rotor of the hub motor is in interference fit with the rim of the wheel to bear most of tire force; and the T-shaped bolt head is in interference fit with the rotor to realize permanent installation. During later wheel maintenance, only the nut needs to be disassembled; compare in the very big convenience that has improved the later maintenance of the electronic integrated scheme of wheel of tradition to can guarantee effectively to prevent that the rim from warping.
(3) According to the wheel assembly integrating the hub motor, the rim and the brake, the brake is arranged in the groove on the outer side of the stator support, so that the ventilation and heat dissipation effects of the brake disc are ensured, the occupation of an electric wheel device on the axial space is reduced, and the arrangement of a suspension system and a steering system is facilitated.
Drawings
Fig. 1 is a cross-sectional view of the internal structure of a wheel assembly integrating a hub motor, a rim and a brake according to the present invention.
FIG. 2 is a full section isometric view of a wheel assembly incorporating the in-wheel motor with rim and brake of the present invention.
Fig. 3 is an exploded view of the wheel assembly of the present invention incorporating an in-wheel motor with a rim and a brake.
Fig. 4 is a schematic view of the rim structure according to the present invention.
Fig. 5 is a schematic view of a rotor structure according to the present invention.
Fig. 6 is a schematic structural diagram of a stator frame according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1-3, the present invention provides a wheel assembly integrating a hub motor, a rim and a brake, which mainly comprises the following components: the brake caliper comprises a tire 1, a rim 2, a rim nut 3, a T-shaped bolt 4, a rotor 5, a stator support 6, a first seal ring 7, a stator core 8, a cooling oil seal 9, a permanent magnet 10, a second seal ring 11, a knuckle arm bolt 12, a knuckle arm nut 13, a first knuckle arm 14a, a second knuckle arm 14b, a brake caliper bolt 15, a brake caliper 16, a brake disc 17, a hub bearing cover plate bolt 18, a hub bearing cover plate 19, a hub bearing 20, a hub bearing retainer ring 21, a brake disc retainer ring 22 and a center nut 23.
The tyre 1 is fixedly sleeved on the outer side of the rim 2. As shown in fig. 4, the rim 2 mainly includes: a tire mounting plate 2c and a rim web 2 d; the tire mounting plate 2c is cylindrical and is disposed around the periphery of the rim web 2d, and the rim web 2d is fixedly attached to one end of the tire mounting plate 2 c. A plurality of rim bolt holes 2a are opened in the rim web 2d, and an annular boss portion 2b that is raised toward the rim center axis (raised in the rim radial direction) is provided in the circumferential direction on the inner wall of the rim mounting plate 2 d. In the present embodiment, the annular projecting portion 2b is provided near the rim web 2d side.
As shown in fig. 5, the rotor 5 mainly includes: rotor body 5a, rotor web 5c, and rotation shaft 5 d. The rotor body 5a is cylindrical, and the rotating shaft 5a is provided coaxially with the rotor body 5 a; the rotor spoke plate 5c is fixedly connected to one ends of the rotor main body part 5a and the rotating shaft 5 d; an annular accommodating cavity 5k is formed by enclosing the rotor spoke plate 5c, the rotor main body part 5a and the rotating shaft 5 d. Wherein, a plurality of rectangular bolt grooves 5b are arranged on the rotor radial plate 5c, and bolt holes 5e communicated with the rectangular bolt grooves 5b are arranged; the rectangular bolt groove 5b is located on the inner side (the side where the accommodation chamber is provided) of the rotor 5, and the bolt hole 5e is located on the outer side of the rotor 5.
The plurality of permanent magnets 10 are fixedly mounted on the rotor main body portion 5a, and the plurality of permanent magnets 10 are arranged at intervals along the circumferential direction of the inner wall of the rotor main body portion 5 a. As a further preference, the rotor spoke plate 5c is also provided with a plurality of through holes 5f for reducing weight and dissipating heat; and a shaft shoulder 5g is arranged on the rotor rotating shaft 5d and used for axially positioning the hub bearing. The rim web 2d has a circular central through hole 2 e; the rotor web 5c has a circular boss 5h in the center, which cooperates to achieve positioning.
The rotor 5 is coaxially arranged in the rim 2, and a rim web 2d and a rotor web 5c are connected through a plurality of T-shaped bolts 4; the annular convex part 2b of the rim 2 is in interference fit with the outer side of the rotor main body part 5a of the rotor 5, and force between the hub motor and the tire is transmitted; a gap is reserved between the tire mounting plate 2c and the rotor main body part 5a, so that the rotor 5 is prevented from being stressed and deformed to influence a motor air gap, and meanwhile, the tire vibration can be attenuated to a certain degree.
The specific connection mode of the rotor 5 and the rim 2 is as follows: a circular boss 5h is provided in the central through hole 2e, and is clearance-fitted with the central through hole 2 e. Bolt holes 5e on the rotor radial plate 5c and the rim bolt holes 2a are coaxially arranged in a one-to-one correspondence manner; the head (rectangular block) of the T-bolt 4 is fixed in the rectangular bolt slot 5b by interference fit, and the screw of the T-bolt 4 sequentially passes through the bolt hole 5e and the rim bolt hole 2a, extends to the outer side of the rim web 2d, and is fixed by installing the rim nut 3.
The outer wall of the rotor body portion 5a is in interference fit with the annular boss 2b on the inner wall of the rim 2 in order to take up and transmit most of the tire force; meanwhile, the inner ring (at the central through hole 2 e) of the wheel rim spoke plate is in clearance fit with the circular convex part 5h of the rotor 5, so that the stress at the position is prevented; thereby can prevent that the rim from taking place local deformation, improve the life of rim. Rectangular bolt groove 5b on rotor 5 adopts interference fit with T type bolt 4's head, and here is permanent installation, and during later stage wheel maintenance, T type bolt 4 need not to dismantle, only need demolish rim nut 3 can, very big improvement the convenience of later stage wheel maintenance or change.
The stator comprises a stator frame 6, a plurality of stator cores 8 and a plurality of motor windings. Wherein, the stator bracket 6 is coaxially arranged in the accommodating cavity 5k, and the rotating shaft 5d is rotatably supported in the stator bracket 6; the plurality of stator cores 8 are fixedly arranged on the outer wall of the stator support and are distributed at intervals along the circumferential direction of the outer wall of the stator support 6, and the motor windings are wound on the stator cores 8 in a one-to-one correspondence mode.
As shown in fig. 6, the stator holder 6 includes a stator holder main body portion 6g and a stator holder end cover 6 h. The stator holder main body portion 6g is cylindrical, and a hub bearing mounting hole 6e is provided in the center of the stator holder main body portion 6 g; the stator holder end cover 6h is annular and is fixedly connected to one end of the stator holder main body portion 6g around the outer circumference of the stator main body portion 6 g. Stator groove 6k has been seted up to one side of stator main part 6g coaxially, and stator groove 6k sets up (be located the one side that is close to the automobile body promptly) with stator support end cover 6h homonymy. Stator support 6 still includes knuckle arm bolt fixing hole 6a, brake caliper lug 6b, stiffening rib 6c, iron core mounting groove 6d and hub bearing apron bolt hole 6 f.
In the present embodiment, the knuckle arm bolt fixing hole 6a is provided on the stator cover 6h, and the first knuckle arm 14a and the second knuckle arm 14b are connected to the stator cover 6h by 3 bolts, respectively. The first knuckle arm 14a is connected to an upper arm of the vehicle suspension, and the second knuckle arm 14b is connected to a lower arm of the vehicle suspension. Since the second knuckle arm 14b bears most of the vehicle weight, the thickness of the second knuckle arm 14b is greater than that of the first knuckle arm 14 a. The reinforcing ribs 6c and the brake caliper lugs 6b are arranged on the inner wall of the stator groove 6k and are distributed at intervals along the circumference of the inner wall of the stator groove 6k, so that the strength of the stator support 6 is increased together. Iron core mounting groove 6d sets up along the circumference interval of stator support main part 6g outer wall, and the fixed mounting of stator core 8 one-to-one is in iron core mounting groove 6 d.
The outer ring of the hub bearing 20 is fixed in the hub bearing mounting hole 6e, and a boss is arranged at the edge of the hub bearing mounting hole 6e and used for axially positioning the hub bearing 20. While the inner race of the hub bearing 20 is fitted to the rotary shaft 5d so that the rotary shaft 5d is rotatably supported in the stator frame main body portion 6g through the hub bearing 20. At the bottom of the stator groove 6k, a plurality of hub bearing cover plate bolt holes 6f are uniformly arranged around the hub bearing mounting hole 6e, and the hub bearing cover plate bolt holes 6f are blind holes; a plurality of hub bearing cover plate bolts 18 are connected in the hub bearing cover plate bolt holes 6f, and the hub bearing cover plate 19 is fixed on the stator support 6; the axial positioning of the hub bearing 20 can be adjusted by adding shims. The stator frame end cover 6h is disposed opposite to the rotor web 5c, and the stator frame end cover 6h abuts on one end (the end away from the rotor web 5 c) of the rotor main body portion 5 a. A stator core 8, a motor winding and a permanent magnet 10 of the hub motor are sealed in an annular cavity at the periphery of the stator support main body part 6g through a stator support end cover 6h, a stator support main body part 6g, a rotor main body part 5a and a rotor radial plate 5 c. Meanwhile, a first sealing ring 7 is arranged between the rotor radial plate 5c and the stator support main body part 6g, and a second sealing ring 11 is arranged between the rotor main body part 5a and the stator support end cover 6 h; the sealing effect of the annular cavity is guaranteed, and the working parts of the hub motor are protected more effectively.
The cooling oil seal 9 is fixedly sleeved on the stator support and hermetically wraps the plurality of stator cores 8, and cooling oil can circulate between the cooling oil seal and the stator support; thereby improving the heat dissipation effect of the hub motor.
The brake disc 17 is coaxially fixed on the rotating shaft 5d in a sleeved mode, and the brake disc 17 is located in the stator groove 6 k; the left and right sides of the brake disc 17 are axially positioned by a hub bearing ring 21 and a brake disc ring 22, respectively. Wherein, the hub bearing retainer ring 21 is abutted against the hub bearing cover plate 19; a central nut 23 is arranged at the end part of the rotating shaft 5d, and the axial fixation of the hub bearing retainer ring 21 is realized through the central nut 23; thereby achieving axial fixation of the stator and the brake disc 17. The brake caliper 16 is matched with the brake disc 17, the brake caliper 16 is fixed on the brake caliper lifting lug 6b of the stator support 6 through 2 brake caliper bolts 15, the arrangement space of the brake caliper 16 has a large allowance, and the positioning of the brake caliper 16 can be adjusted by adding a gasket. The brake caliper 16 is an electric brake caliper or a hydraulic brake caliper, depending on the vehicle requirements.
In this embodiment, the brake is arranged in the stator groove 6k on the side of the stator bracket 4 close to the vehicle body, so that the problem that the brake is arranged inside the wheel to influence the braking heat dissipation is avoided, and the heat dissipation effect of the brake can be ensured. And meanwhile, the brake disc 17 adopts a ventilation brake disc, and a plurality of ventilation holes are formed in the brake disc 17, so that the heat dissipation effect can be further improved.
The working of the invention is described in detail below with reference to fig. 1:
as shown in fig. 1, the wheel assembly of the integrated hub motor and rim brake according to the present invention integrally connects the wheel hub 2 and the hub motor rotor 5 of the electric wheel by interference fit and bolts, connects the stator bracket 6 and the first and second knuckle arms 14a and 14b by bolts, and integrates the brake into the stator recess 6k at one side of the stator bracket 6. When the automobile is driven, the stator support 6 is restrained by the first knuckle arm 14a and the second knuckle arm 14b and serves as a fixing component, the permanent magnet 10 is subjected to magnetic field acting force formed by the stator iron core 8 and a motor winding to drive the rotor 5 to rotate, and the rotor 5 transmits driving torque to the rim 2 through bolts and interference fit relation, further transmits the driving torque to the tire 1 and drives the automobile to run; when braking, on one hand, the hub motor generates electromagnetic braking force, and on the other hand, the brake caliper 16 is an electronic brake caliper, and when receiving a braking signal, the brake caliper pushes the brake pad to be tightly attached to the brake disc 17 to generate mechanical braking force, and the electromagnetic braking force and the mechanical braking force act together to prevent the wheel from rotating.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A wheel assembly of integrated in-wheel motor and rim, stopper which characterized in that includes:
a rim comprising a rim web and a tire mounting plate;
the tire mounting plate is cylindrical and is arranged around the periphery of the rim web, and the rim web is fixedly connected to one end of the tire mounting plate;
a rotor including a rotor main body portion, a rotor web, a rotation shaft, and a plurality of permanent magnets;
the rotor main body part is cylindrical, and the rotating shaft and the rotor main body part are coaxially arranged; the rotor spoke plate is fixedly connected to the rotor main body part and one end of the rotating shaft; the rotor spoke plate, the rotor main body part and the rotating shaft are enclosed to form an annular accommodating cavity;
the permanent magnets are fixedly arranged on the rotor main body part and are distributed at intervals along the circumferential direction of the inner wall of the rotor main body part;
wherein the rotor is coaxially disposed within the rim; the rotor wheel disk is abutted against the wheel rim wheel disk and is detachably and fixedly connected with the wheel rim wheel disk;
an annular bulge protruding towards the center direction of the rim is arranged on the inner wall of the rim mounting plate along the circumferential direction, and the annular bulge is in interference fit with the rotor main body;
a stator including a stator bracket, a plurality of stator cores, and a plurality of motor windings;
wherein the stator bracket is coaxially arranged in the accommodating cavity, and the rotating shaft is rotatably supported in the stator bracket;
the plurality of stator cores are fixedly arranged on the outer wall of the stator support and are distributed at intervals along the circumferential direction of the outer wall of the stator support; the motor windings are wound on the stator iron cores in a one-to-one correspondence mode.
2. The integrated in-wheel motor and rim and brake wheel assembly of claim 1, wherein the rotor web and the rim web are connected by T-bolts;
the rotor radial plate is provided with a rectangular groove, and a bolt head of the T-shaped bolt is in interference fit with the rectangular groove; and a screw rod of the T-shaped bolt simultaneously penetrates through the rotor wheel disk and the rim wheel disk and is connected with a nut arranged on the outer side of the rim wheel disk in a matching manner.
3. The integrated in-wheel motor and rim and brake wheel assembly of claim 2, wherein the rim web has a circular central through hole; the center of the rotor spoke plate is provided with a circular convex part;
wherein the circular boss is disposed in the central through hole and is clearance-fitted with the central through hole.
4. The integrated in-wheel motor and rim and brake wheel assembly of claim 3, wherein the stator frame comprises a stator frame body portion and a stator frame end cap;
the stator support main body part is cylindrical, and a hub bearing mounting hole is formed in the center of the stator support main body part;
wherein, a hub bearing is arranged on the rotating shaft and is supported in the hub bearing mounting hole through the hub bearing;
the stator support end cover is annular and is fixedly connected to one end of the stator support main body part around the outer circumference of the stator main body;
wherein the stator frame end cover is disposed opposite to the rotor web, and the stator frame end cover abuts against the other end of the rotor main body portion.
5. The integrated in-wheel motor and rim and brake wheel assembly of claim 4, further comprising:
the brake disc is coaxially and fixedly sleeved on the rotating shaft;
a stator groove is coaxially formed in one side of the stator main body, and the stator groove and the stator support end cover are arranged on the same side; the brake disc is positioned in the stator groove; and
a brake caliper fixedly mounted on the stator body and located within the stator groove; the brake caliper is matched with the brake disc.
6. The wheel assembly of claim 4 or 5, further comprising:
the first steering knuckle arm and the second steering knuckle arm are respectively detachably and fixedly connected to the stator support end cover and are arranged towards the direction of a vehicle body;
wherein the first track arm is connected to an upper cross arm of the vehicle suspension and the second track arm is connected to a lower cross arm of the vehicle suspension.
7. The integrated in-wheel motor and rim and brake wheel assembly of claim 6, wherein the second track arm has a thickness greater than a thickness of the first track arm.
8. The integrated in-wheel motor and rim and brake wheel assembly of claim 7, further comprising:
and the cooling oil seal is fixedly sleeved on the stator bracket.
9. The integrated in-wheel motor and rim and brake wheel assembly of claim 8, further comprising:
a first seal ring disposed between the rotor web and the stator frame main body portion; and
and a second seal ring disposed between the rotor body portion and the stator frame end cover.
10. The wheel assembly of claim 9, wherein the brake disc defines a plurality of vents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252953.3A CN113799595A (en) | 2021-10-27 | 2021-10-27 | Wheel assembly integrating hub motor, rim and brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252953.3A CN113799595A (en) | 2021-10-27 | 2021-10-27 | Wheel assembly integrating hub motor, rim and brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113799595A true CN113799595A (en) | 2021-12-17 |
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ID=78937861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111252953.3A Pending CN113799595A (en) | 2021-10-27 | 2021-10-27 | Wheel assembly integrating hub motor, rim and brake |
Country Status (1)
| Country | Link |
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| CN (1) | CN113799595A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148160A (en) * | 2021-12-23 | 2022-03-08 | 吉林大学 | Electric wheel and vehicle |
| IT202200008264A1 (en) * | 2022-04-27 | 2023-10-27 | Ferrari Spa | WHEEL DEVICE WITH INTEGRATED ELECTRIC MOTOR FOR A MOTOR VEHICLE |
| IT202200008270A1 (en) * | 2022-04-27 | 2023-10-27 | Ferrari Spa | WHEEL DEVICE WITH INTEGRATED ELECTRIC MOTOR FOR A MOTOR VEHICLE |
-
2021
- 2021-10-27 CN CN202111252953.3A patent/CN113799595A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148160A (en) * | 2021-12-23 | 2022-03-08 | 吉林大学 | Electric wheel and vehicle |
| IT202200008264A1 (en) * | 2022-04-27 | 2023-10-27 | Ferrari Spa | WHEEL DEVICE WITH INTEGRATED ELECTRIC MOTOR FOR A MOTOR VEHICLE |
| IT202200008270A1 (en) * | 2022-04-27 | 2023-10-27 | Ferrari Spa | WHEEL DEVICE WITH INTEGRATED ELECTRIC MOTOR FOR A MOTOR VEHICLE |
| EP4270738A1 (en) * | 2022-04-27 | 2023-11-01 | FERRARI S.p.A. | Wheel device with integrated electric motor for a motor vehicle |
| EP4269147A1 (en) * | 2022-04-27 | 2023-11-01 | FERRARI S.p.A. | Wheel device with integrated electric motor for a motor vehicle |
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