CN218112237U

CN218112237U - Wheel hub and vehicle

Info

Publication number: CN218112237U
Application number: CN202222797922.2U
Authority: CN
Inventors: 杨星星; 胡义明; 兰海; 徐锡锋
Original assignee: Midea Welling Motor Technology Shanghai Co Ltd
Current assignee: Midea Welling Motor Technology Shanghai Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2022-12-23
Anticipated expiration: 2032-10-24

Abstract

The utility model provides a wheel hub and vehicle. The hub comprises a rim and a plurality of bosses, the bosses are arranged along the circumferential direction of the rim, at least one boss in the bosses is provided with a mounting hole, the mounting hole extends along the axial direction of the rim, and the opening of the mounting hole faces one side of the rim in the axial direction.

Description

Wheel hub and vehicle

Technical Field

The utility model relates to a wheel hub technical field particularly, relates to a wheel hub and vehicle.

Background

At present, when a motor of an electric bicycle is assembled with a rim, a rotor core of the motor can be installed on an inner ring of the rim, two end covers are buckled on two axial sides of the rim respectively, and a bolt penetrates through the end covers and then is screwed on the rim. In the related art, the threaded hole in the rim is opened on the side surface of the rim inner ring in the axial direction, but the threaded hole is arranged at the position, so that the contact area between the end cover and the rim in the area where the threaded hole is located is small, and the sealing performance between the end cover and the rim is further influenced.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

To this end, a first aspect of the present invention provides a wheel hub.

A second aspect of the present invention provides a vehicle.

In view of this, the utility model discloses the first aspect provides a wheel hub, including rim and a plurality of boss, a plurality of bosses are arranged along the circumference of rim, and at least one boss is provided with the mounting hole in a plurality of bosses, and the mounting hole is along the axial extension of rim, and the opening of mounting hole is towards the rim one side of axial.

The utility model provides a wheel hub, including the rim, the inner circle of rim can cooperate with the rotor core of motor, and then makes the motor can drive wheel hub and rotate, realizes the drive to the vehicle including this wheel hub. Wheel hub still includes a plurality of bosss, and a plurality of bosss are arranged along the circumference of rim, and the mounting hole setting is on the boss, because be provided with the boss that is used for seting up the mounting hole on the rim alone, so the mounting hole need not to occupy the space of rim inner circle, and then makes end cover and rim assembly back, has bigger area of contact between end cover and the rim, and then promotes the leakproofness between end cover and the rim.

Because the mounting hole extends along the axial direction of the rim, and the opening of the mounting hole faces one side of the rim in the axial direction, the connecting piece can be connected in the mounting hole after penetrating through the end cover, and the end cover is further convenient to fix. The mounting hole extends along the axial direction of the rim, and the opening of the mounting hole faces to one side of the rim in the axial direction, so that the bottom size of the rim is not occupied, the radial space in the rim is increased, the outer diameter of a rotor part of the motor can be increased, and the performance of the motor is improved; under the condition that the performance of the motor is not changed, the electromagnetic cost can be effectively reduced by increasing the outer diameter of the rotor.

Specifically, the number of the bosses is multiple, each boss in the multiple bosses can be provided with a mounting hole, one or more bosses can be provided with mounting holes at regular intervals, and any three or four bosses can be provided with mounting holes.

The plurality of bosses can be arranged on one side of the rim in the axial direction, and the bosses can also be arranged on both sides of the rim in the axial direction.

Under the condition that the boss is arranged on one side of the rim in the axial direction, the threaded hole can be a through hole, the end covers on the two sides can be fixed through the same through hole, for example, bolts for fixing the end covers on the two sides are screwed into the same threaded hole on the two sides of the threaded hole, and one bolt can also penetrate through the end covers on the two sides and the mounting hole and then is connected with the nut, so that the end covers on the two sides can be mounted and fixed.

Under the condition that the bosses are arranged on the two sides of the rim in the axial direction, the bosses can be connected with the mounting holes in the two sides through bolts respectively, and then the end covers on the two sides can be mounted and fixed.

A plurality of bosss can be followed the circumference of rim and distributed in succession, form a whole annular boss promptly, and the distribution mode of this kind of boss can further promote the area of contact between end cover and the wheel hub. The bosses can also be distributed in the circumferential direction of the rim at certain intervals, and the distribution mode of the bosses can reduce the weight of the hub, thereby being beneficial to the light-weight design of a vehicle; and a plurality of bosses are distributed in the circumferential direction of the rim at intervals, so that the material consumption of the hub can be reduced, and the cost of the hub is reduced.

Additionally, the utility model provides an above-mentioned technical scheme in wheel hub can also have following additional technical characteristics:

in one technical solution of the present invention, the rim includes a first positioning portion and a second positioning portion; the first positioning part is annular; the second positioning part is annular and is arranged on one side of the first positioning part in the axial direction; wherein, the internal diameter of the first location portion is greater than the internal diameter of the second location portion.

In this technical scheme, the rim includes first location portion and second location portion, and first location portion and second location portion all are the annular, and first location portion and second location portion arrange along the axial of rim, and first location portion is connected with the second location portion. The internal diameter of first location portion is greater than the internal diameter of second location portion, and the inner wall of rim forms echelonment structure, and after assembling rotor core in the inner circle of first location portion, one side that rotor core is close to second location portion in the axial can support by on locating portion with the second, and then realizes the location to the iron core of rotor through the cooperation of first location portion and second location portion, has promoted the accuracy of position between rotor and the wheel hub.

Specifically, first location portion fixes a position rotor core in circumference, and then has promoted the axiality of rim and motor, ensures the accuracy of the position at rotor center and wheel hub center.

Second location portion fixes a position rotor core in the axial, has promoted rotor core and rim in the accuracy of axial upper position.

The utility model discloses an among the technical scheme, a plurality of bosses are arranged along the periphery of first location portion and/or second location portion.

In this technical scheme, because a plurality of bosses are arranged along the periphery of first location portion and/or second location portion, the mounting hole of setting on the boss can not occupy the space of first location portion and/or second location portion at the ascending side of axial, and then makes the area of contact of first location portion and/or second location portion and end cover bigger, further promotes the sealed effect between end cover and the rim.

Specifically, if the mounting hole is provided on the side surface of the first positioning portion in the axial direction, in the region where the mounting hole is located, the mounting hole may be on the contact surface of the end cover and the first positioning portion, and the contact surface of the end cover in contact with the first positioning portion may be notched due to the presence of the mounting hole, thereby affecting the size of the contact surface of the end cover and the first positioning portion in the radial direction. Set up the locating hole on the boss to set up the boss to arrange for the periphery along first location portion, make the position of mounting hole can avoid the contact surface of end cover and first location portion, and then avoid the mounting hole to influence the area of contact of end cover and first location portion, promote the sealed effect between end cover and the first location portion.

The positioning holes are formed in the bosses, the bosses are arranged along the peripheries of the second positioning portions, the positions of the mounting holes can be made to be capable of avoiding the contact surfaces of the end covers and the second positioning portions, the contact areas of the end covers and the second positioning portions are prevented from being affected by the mounting holes, and the sealing effect between the end covers and the second positioning portions is improved.

The utility model discloses an among the technical scheme, the minimum distance between the edge of mounting hole and the inner circle edge of first location portion more than or equal to 1 millimeter, and less than or equal to 5 millimeters.

In this technical scheme, the distance between the inner circle of mounting hole and first positioning portion is the region that the rim can contact with the end cover, sets up the minimum distance between the edge of mounting hole and the inner circle edge of first positioning portion to 1 millimeter to 5 millimeters, further increases the size range of the region that rim and end cover contacted, further promotes the area of contact between rim and the end cover.

The utility model discloses an among the technical scheme, the rim is still including gluing the groove, glues the groove and sets up in the inner wall of first location portion, arranges along the circumference of first location portion.

In this technical scheme, the rim is still including setting up in the gluey groove of the inner wall of first location portion, and glues the groove and arrange along the circumference of first location portion, and after rotor core assembly and first location portion, the accessible is to gluing in the inslot and then realize fixing to rotor core. Because the inner wall at first location portion is provided with gluey groove for the injecting glue technology is more simple and convenient, and can increase the volume of gluing that can exist between rotor core and the first location portion when not influencing the positioning accuracy between rotor core and the first location portion, further promotes the stability between rotor core and the rim.

Be provided with gluey groove at the inner wall of first location portion, can also be convenient for the embedment or the bonding of rotor for wheel hub becomes an organic whole with the rotor, and the installation of being convenient for improves assembly efficiency.

In one embodiment of the present invention, the inner diameter of the first positioning portion is greater than or equal to 210 mm and less than or equal to 280 mm; the inner diameter of the second positioning part is greater than or equal to 200 mm and less than or equal to 270 mm.

In the technical scheme, the inner diameter of the first positioning part is set to be 210 mm to 280 mm, and the inner diameter of the second positioning part is set to be 200 mm to 270 mm, so that the inner diameters of the first positioning part and the second positioning part are further increased, the radial space in a rim is improved, the outer diameter of a rotor part of the motor is further increased, and the performance of the motor is improved conveniently; the outer diameter of the rotor is increased, and the electromagnetic cost can be effectively reduced under the condition that the performance of the motor is not changed.

Specifically, the wheel hub is 10 cun wheel hub, and the internal diameter of first location portion is more than or equal to 210 millimeters, and is less than or equal to 230 millimeters, and the internal diameter of second location portion is more than or equal to 200 millimeters, and is less than or equal to 220 millimeters.

The wheel hub is 12 cun wheel hub, and the internal diameter of first location portion is more than or equal to 260 millimeters, and is less than or equal to 280 millimeters, and the internal diameter of second location portion is more than or equal to 250 millimeters, and is less than or equal to 270 millimeters.

In one technical solution of the present invention, the wheel hub further includes a first supporting portion and a second supporting portion; the first supporting part is arranged on one side of the first positioning part close to the second positioning part and is provided with a valve hole; the second supporting part is arranged on one side of the first positioning part far away from the second positioning part.

In this technical scheme, wheel hub still includes first supporting part and second supporting part, but first supporting part and second supporting part tire support, and the valve accessible valve hole of tire is installed on the rim.

Specifically, the inner ring of the first support part is connected with the first positioning part and extends obliquely to a first side of the rim in the axial direction, the inner ring of the second support part is connected with the first positioning part and extends obliquely to a second side of the rim in the axial direction, the first side of the rim in the axial direction and the second side of the rim in the axial direction are two sides of the rim which are opposite to each other in the axial direction, and the first support part and the second support part form a V-shaped structure, so that the tire can be mounted and fixed.

Furthermore, the inner side of the boss is connected with the first positioning part or the second positioning part, and the outer side of the boss is connected with the first supporting part or the second supporting part.

The utility model discloses an among the technical scheme, the mounting hole is the unthreaded hole, and wheel hub still includes the thread bush, and the thread bush inlays in the mounting hole.

In this technical scheme, the mounting hole is the unthreaded hole, and the unthreaded hole is embedded to be equipped with the thread bush, and then the threaded connection spare of being convenient for is fixed with the end cover on the wheel hub. Because be provided with the thread bush in the mounting hole, the thread bush can be changed, and then makes the end cover dismouting and maintenance repeatedly, and then improves the dismouting life-span of screw hole. And the thread bush compares with the boss and possesses higher intensity, and then promotes the intensity of screw hole for the end cover is more stable.

Specifically, the threaded hole and the mounting hole are in interference fit.

The utility model discloses an among the technical scheme, the mounting hole is the screw hole.

In this technical scheme, the mounting hole is the screw hole, and the screw hole can be directly processed on the boss, and then reduces wheel hub's cost.

The utility model discloses an among the technical scheme, the rim is the rim of non-magnetic conduction material.

In this technical scheme, the rim is the rim of non-magnetic conduction material, avoids the rim to influence the performance of motor, promotes the stability of motor operation in-process.

Specifically, the hub is an aluminum alloy hub or a magnesium aluminum alloy hub.

The utility model discloses the second aspect provides a vehicle, include as above-mentioned any technical scheme's wheel hub, consequently this vehicle possesses above-mentioned any technical scheme's wheel hub's whole beneficial effect.

The utility model discloses an among the technical scheme, the vehicle still includes the rotor, and the rotor includes rotor core, and rotor core sets up in the first location portion of rim, and rotor core supports in the axial ascending first side and leans on the second location portion in the rim.

In this technical scheme, rotor core sets up in the first location portion of rim, and first location portion is fixed a position rotor core in week, and then has promoted the axiality of rim and motor, ensures the accuracy of the position at rotor center and wheel hub center. Rotor core supports in the second location portion of rim by in the ascending first side of axial, and second location portion fixes a position rotor core in the axial, has promoted rotor core and rim accuracy in the axial position.

The utility model discloses an among the technical scheme, the vehicle still includes the end cover, and the end cover lock leans on in rotor core at the ascending second side of axial in rim one side of axial.

In this technical scheme, the end cover lock supports in rotor core at the ascending second side of axial in rim one side, end cover and the cooperation of second location portion, and then presss from both sides stator core tightly in first location portion, realizes the fixed to rotor core, promotes rotor core at the stability of rotation in-process.

The number of the end covers is two, and the end covers are buckled on two sides of the rim respectively.

The utility model discloses an among the technical scheme, the vehicle still includes the connecting piece, and the end cover is worn to locate by the connecting piece, and installs in the mounting hole.

In this technical scheme, the connecting piece wears to locate the end cover, and installs in the mounting hole, realizes the installation and the fixed to the end cover.

The utility model discloses an among the technical scheme, the vehicle still includes first sealed glue, and first sealed glue sets up between end cover and rim.

In this technical scheme, first sealed glue sets up between end cover and rim, realizes the sealed between end cover and the rim, and then promotes the sealed effect between end cover and the rim.

The utility model discloses an among the technical scheme, the vehicle still includes sealed glue of second, and sealed glue of second sets up between rotor core and first location portion to and the gluey inslot of first location portion.

In this technical scheme, set up sealed glue of second between rotor core and the first location portion, realize the embedment or the bonding of rotor for wheel hub becomes an organic whole with the rotor, and the installation of being convenient for improves assembly efficiency.

Specifically, the second sealant is embedded in the rubber groove, and can also be arranged between the end cover and the rim except for the rubber groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows one of the structural schematics of a wheel hub according to an embodiment of the invention;

fig. 2 shows a second schematic structural view of a wheel hub according to an embodiment of the invention;

fig. 3 shows one of the cross-sectional views of a wheel hub according to an embodiment of the invention;

fig. 4 shows a second cross-sectional view of the hub according to an embodiment of the invention;

fig. 5 shows a partial schematic view of a wheel hub according to an embodiment of the invention;

fig. 6 shows an assembly schematic of a hub, end cover and rotor according to an embodiment of the invention;

fig. 7 is a partial enlarged view of the hub, end cover and rotor of fig. 6 at a in accordance with an embodiment of the present invention;

fig. 8 shows a third schematic structural view of a wheel hub according to an embodiment of the present invention;

fig. 9 shows a fourth schematic structural view of a wheel hub according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:

100 rims, 110 first positioning parts, 120 second positioning parts, 130 glue grooves, 140 first supporting parts, 150 second supporting parts, 160 valve holes, 200 bosses, 210 mounting holes, 300 thread sleeves, 410 rotors, 420 end covers, 430 connecting pieces, 440 first sealant and 450 second sealant.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A wheel hub and a vehicle according to some embodiments of the present invention are described below with reference to fig. 1 to 9.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, a wheel hub is provided, which includes a rim 100 and a plurality of bosses 200, the plurality of bosses 200 are arranged along a circumferential direction of the rim 100, at least one boss 200 of the plurality of bosses 200 is provided with a mounting hole 210, the mounting hole 210 extends along an axial direction of the rim 100, and an opening of the mounting hole 210 faces one side of the rim 100 in the axial direction.

In this embodiment, the wheel hub includes a rim 100, and an inner ring of the rim 100 can be engaged with a rotor 400 core of the motor, so that the motor can drive the wheel hub to rotate, thereby driving a vehicle including the wheel hub. The wheel hub further comprises a plurality of bosses 200, the bosses 200 are arranged along the circumferential direction of the rim 100, the mounting holes 210 are formed in the bosses 200, and the bosses 200 used for forming the mounting holes 210 are independently arranged on the rim 100, so that the mounting holes 210 do not need to occupy the space of the inner ring of the rim 100, and after the end cover 420 is assembled with the rim 100, the contact area between the end cover 420 and the rim 100 is larger, and the sealing performance between the end cover 420 and the rim 100 is further improved.

Since the mounting hole 210 extends in the axial direction of the rim 100 and the opening of the mounting hole 210 faces one side of the rim 100 in the axial direction, the connecting member 430 can be connected into the mounting hole 210 after passing through the end cap 420, thereby facilitating the fixation of the end cap 420. Moreover, the mounting hole 210 extends along the axial direction of the rim 100, and the opening of the mounting hole 210 faces to one side of the rim 100 in the axial direction, so that the bottom size of the rim 100 is not occupied, the radial space in the rim 100 is lifted, the outer diameter of the motor rotor 400 can be increased, and the motor performance is improved; increasing the outer diameter of the rotor 400 can effectively reduce electromagnetic costs without changing the motor performance.

Specifically, the number of the bosses 200 is plural, each of the plurality of bosses 200 may be provided with a mounting hole 210, one or more bosses 200 may be provided with a mounting hole 210 at regular intervals, and any three or four bosses 200 may be provided with a mounting hole 210.

The plurality of bosses 200 may be provided on one side of the rim 100 in the axial direction, or the bosses 200 may be provided on both sides of the rim 100 in the axial direction.

In the case that the boss 200 is disposed on one side of the rim 100 in the axial direction, the threaded hole may be a through hole, and the end caps 420 on both sides may be fixed through the same through hole, for example, bolts for fixing the end caps 420 on both sides are screwed into the same threaded hole on both sides of the threaded hole, and one bolt may also pass through the end caps 420 on both sides and the mounting hole 210, and then be connected to a nut, thereby realizing the mounting and fixing of the end caps 420 on both sides.

Under the condition that the bosses 200 are arranged on both sides of the rim 100 in the axial direction, the bosses can be respectively connected with the mounting holes 210 on both sides through bolts, and then the mounting and fixing of the end covers 420 on both sides are realized.

The plurality of bosses 200 may be continuously distributed along the circumferential direction of the rim 100, that is, an overall annular boss 200 is formed, and the distribution mode of the bosses 200 can further increase the contact area between the end cover 420 and the hub. The bosses 200 can also be distributed in the circumferential direction of the rim 100 at certain intervals, and the weight of the hub can be reduced by the distribution mode of the bosses 200, so that the light-weight design of a vehicle is facilitated; and a plurality of bosss 200 are distributed in the circumference of the rim 100 at intervals, so that the material consumption of the hub can be reduced, and the cost of the hub is reduced.

The present embodiment provides a hub, and in addition to the technical features of the above embodiments, the present embodiment further includes the following technical features.

As shown in fig. 3 and 4, the rim 100 includes a first positioning portion 110 and a second positioning portion 120; the first positioning portion 110 is annular; the second positioning portion 120 is annular and is disposed on one side of the first positioning portion 110 in the axial direction; the inner diameter of the first positioning portion 110 is larger than the inner diameter of the second positioning portion 120.

In this embodiment, the rim 100 includes a first positioning portion 110 and a second positioning portion 120, the first positioning portion 110 and the second positioning portion 120 are both annular, the first positioning portion 110 and the second positioning portion 120 are arranged in the axial direction of the rim 100, and the first positioning portion 110 is connected to the second positioning portion 120. The inner diameter of the first positioning portion 110 is greater than the inner diameter of the second positioning portion 120, the inner wall of the rim 100 forms a stepped structure, after the rotor 400 core is assembled in the inner ring of the first positioning portion 110, one side of the rotor 400 core, which is close to the second positioning portion 120 in the axial direction, can abut against the second positioning portion 120, and then the positioning of the core of the rotor 400 is realized through the cooperation of the first positioning portion 110 and the second positioning portion 120, so that the accuracy of the position between the rotor 400 and the hub is improved.

Specifically, the first positioning portion 110 positions the core of the rotor 400 in the circumferential direction, so that the coaxiality of the rim 100 and the motor is improved, and the accuracy of the positions of the center of the rotor 400 and the center of the hub is ensured.

The second positioning portion 120 positions the rotor 400 core in the axial direction, and the accuracy of the position of the rotor 400 core and the rim 100 in the axial direction is improved.

As shown in fig. 1 and 2, a plurality of bosses 200 are arranged along the outer periphery of the first positioning portion 110 and/or the second positioning portion 120.

In this embodiment, since the plurality of bosses 200 are arranged along the outer periphery of the first positioning portion 110 and/or the second positioning portion 120, the mounting holes 210 provided on the bosses 200 do not occupy the space on the side surface of the first positioning portion 110 and/or the second positioning portion 120 in the axial direction, so that the contact area between the first positioning portion 110 and/or the second positioning portion 120 and the end cover 420 is larger, and the sealing effect between the end cover 420 and the rim 100 is further improved.

Specifically, if the mounting hole 210 is disposed on the side surface of the first positioning portion 110 in the axial direction, in the area where the mounting hole 210 is located, the mounting hole 210 is located on the contact surface of the end cap 420 and the first positioning portion 110, and the contact surface of the end cap 420 and the first positioning portion 110 is notched due to the presence of the mounting hole 210, so as to affect the size of the contact surface of the end cap 420 and the first positioning portion 110 in the radial direction. The positioning holes are disposed on the bosses 200, and the bosses 200 are disposed along the periphery of the first positioning portion 110, so that the positions of the mounting holes 210 can avoid the contact surfaces of the end caps 420 and the first positioning portion 110, thereby preventing the mounting holes 210 from affecting the contact areas of the end caps 420 and the first positioning portion 110, and improving the sealing effect between the end caps 420 and the first positioning portion 110.

The positioning hole is formed in the boss 200, and the boss 200 is arranged along the periphery of the second positioning portion 120, so that the position of the mounting hole 210 can avoid the contact surface between the end cover 420 and the second positioning portion 120, the mounting hole 210 is prevented from affecting the contact area between the end cover 420 and the second positioning portion 120, and the sealing effect between the end cover 420 and the second positioning portion 120 is improved.

As shown in fig. 4, the minimum distance b between the edge of the mounting hole 210 and the inner ring edge of the first positioning portion 110 is greater than or equal to 1 mm and less than or equal to 5 mm.

In this embodiment, the distance between the mounting hole 210 and the inner ring of the first positioning portion 110 is an area where the rim 100 can contact the end cap 420, and the minimum distance b between the edge of the mounting hole 210 and the edge of the inner ring of the first positioning portion 110 is set to 1 mm to 5 mm, so that the size range of the area where the rim 100 contacts the end cap 420 is further increased, and the contact area between the rim 100 and the end cap 420 is further increased.

As shown in fig. 3 and 4, the rim 100 further includes a glue groove 130, and the glue groove 130 is disposed on an inner wall of the first positioning portion 110 and arranged along a circumferential direction of the first positioning portion 110.

In this embodiment, the rim 100 further includes a glue groove 130 disposed on an inner wall of the first positioning portion 110, and the glue groove 130 is disposed along a circumferential direction of the first positioning portion 110, and after the rotor 400 core is assembled with the first positioning portion 110, the rotor 400 core may be fixed by injecting glue into the glue groove 130. Because the inner wall of the first positioning portion 110 is provided with the glue groove 130, the glue injection process is simpler and more convenient, and the amount of glue which can exist between the rotor 400 core and the first positioning portion 110 can be increased while the positioning accuracy between the rotor 400 core and the first positioning portion 110 is not affected, so that the stability between the rotor 400 core and the rim 100 is further improved.

The inner wall of the first positioning portion 110 is provided with the glue groove 130, which can also facilitate potting or bonding of the rotor 400, so that the hub and the rotor 400 are integrated, thereby facilitating installation and improving assembly efficiency.

As shown in fig. 4, the inner diameter d of the first positioning portion 110 is greater than or equal to 210 mm and less than or equal to 280 mm; the inner diameter c of the second positioning portion 120 is not less than 200 mm and not more than 270 mm.

In this embodiment, the inner diameter d of the first positioning portion 110 is set to 210 mm to 280 mm, and the inner diameter c of the second positioning portion 120 is set to 200 mm to 270 mm, so as to further increase the inner diameters of the first positioning portion 110 and the second positioning portion 120, and increase the radial space in the rim 100, thereby increasing the outer diameter of the motor rotor 400 portion and facilitating the improvement of the motor performance; the outer diameter of the rotor 400 is increased, and the electromagnetic cost can be effectively reduced under the condition that the performance of the motor is not changed.

Specifically, the hub is a 10-inch hub, the inner diameter d of the first positioning portion 110 is greater than or equal to 210 mm and less than or equal to 230 mm, and the inner diameter c of the second positioning portion 120 is greater than or equal to 200 mm and less than or equal to 220 mm.

The hub is a 12-inch hub, the inner diameter d of the first positioning portion 110 is greater than or equal to 260 mm and less than or equal to 280 mm, and the inner diameter c of the second positioning portion 120 is greater than or equal to 250 mm and less than or equal to 270 mm.

As shown in fig. 3 and 4, the hub further includes a first support portion 140 and a second support portion 150; the first support portion 140 is provided on a side of the first positioning portion 110 close to the second positioning portion 120, and the first support portion 140 is provided with a valve hole 160; the second supporting portion 150 is disposed on a side of the first positioning portion 110 away from the second positioning portion 120.

In this embodiment, the hub further comprises a first support 140 and a second support 150, the first support 140 and the second support 150 being supportable by a tire, the valve of which is mountable on the rim 100 through the valve hole 160.

Specifically, the inner ring of the first support portion 140 is connected to the first positioning portion 110 and extends obliquely toward a first side of the rim 100 in the axial direction, the inner ring of the second support portion 150 is connected to the first positioning portion 110 and extends obliquely toward a second side of the rim 100 in the axial direction, the first side of the rim 100 in the axial direction and the second side of the rim 100 in the axial direction are opposite sides of the rim 100 in the axial direction, and the first support portion 140 and the second support portion 150 form a V-shaped structure, thereby achieving the installation and fixation of the tire.

Further, the inner side of the boss 200 is connected to the first positioning portion 110 and/or the second positioning portion 120, and the outer side of the boss 200 is connected to the first supporting portion 140 and/or the second supporting portion 150.

As shown in fig. 5, the mounting hole 210 is a light hole, and the hub further includes a threaded sleeve 300, and the threaded sleeve 300 is embedded in the mounting hole 210.

In this embodiment, the mounting hole 210 is a light hole, and the threaded sleeve 300 is embedded in the light hole, so as to facilitate the threaded connection 430 to fix the end cap 420 to the hub. Because the threaded sleeve 300 is arranged in the mounting hole 210, the threaded sleeve 300 can be replaced, so that the end cover 420 can be repeatedly disassembled and maintained, and the disassembling and assembling service life of the threaded hole is prolonged. And the thread bush 300 has higher strength than the boss 200, and further the strength of the screw hole is improved, so that the end cap 420 is more stable.

Specifically, the threaded hole is an interference fit with the mounting hole 210.

As shown in fig. 3, the mounting holes 210 are threaded holes.

In this embodiment, the mounting holes 210 are threaded holes that can be machined directly into the boss 200, thereby reducing the cost of the hub.

The rim 100 is made of a non-magnetic material.

In this embodiment, the rim 100 is made of a non-magnetic material, so that the rim 100 is prevented from affecting the performance of the motor, and the stability of the motor in the operation process is improved.

In an embodiment of the present invention, a vehicle is provided, comprising a wheel hub according to any of the above embodiments, so that the vehicle has all the benefits of the wheel hub according to any of the above embodiments.

The present embodiment provides a vehicle, and in addition to the technical features of the above-described embodiment, further includes the following technical features.

As shown in fig. 6, the vehicle further includes a rotor 400, where the rotor 400 includes a rotor 400 core, the rotor 400 core is disposed in the first positioning portion 110 of the rim 100, and a first side of the rotor 400 core in the axial direction abuts against the second positioning portion 120 of the rim 100.

In this embodiment, the rotor 400 core is disposed in the first positioning portion 110 of the rim 100, and the first positioning portion 110 positions the rotor 400 core in the circumferential direction, so that the coaxiality between the rim 100 and the motor is improved, and the accuracy of the positions of the center of the rotor 400 and the center of the hub is ensured. The first side of rotor 400 iron core in the axial direction leans on in the second location portion 120 of rim 100, and second location portion 120 is fixed a position rotor 400 iron core in the axial direction, has promoted the accuracy of rotor 400 iron core and rim 100 position in the axial direction.

As shown in fig. 6, the vehicle further includes an end cap 420, and the end cap 420 is snapped to one side of the rim 100 in the axial direction and abuts against a second side of the core of the rotor 400 in the axial direction.

In this embodiment, the end cap 420 is fastened to one side of the rim 100 in the axial direction and abuts against the second side of the rotor 400 core in the axial direction, and the end cap 420 is engaged with the second positioning portion 120, so as to clamp the stator core in the first positioning portion 110, thereby fixing the rotor 400 core and improving the stability of the rotor 400 core in the rotation process.

The number of the end caps 420 is two, and the end caps are respectively buckled on two sides of the rim 100.

The present embodiment provides a vehicle, and in addition to the technical features of the above-described embodiments, further includes the following technical features.

As shown in fig. 6 and 7, the vehicle further includes a connecting member 430, and the connecting member 430 is inserted through the end cap 420 and is installed in the installation hole 210.

In this embodiment, the connecting member 430 is inserted through the end cap 420 and is installed in the installation hole 210, so as to install and fix the end cap 420.

As shown in fig. 7, the vehicle further includes a first sealant 440, the first sealant 440 being disposed between the end cap 420 and the rim 100.

In this embodiment, the first sealant 440 is disposed between the end cap 420 and the rim 100, so as to seal the end cap 420 and the rim 100, and further improve the sealing effect between the end cap 420 and the rim 100.

As shown in fig. 7, the vehicle further includes a second sealant 450, and the second sealant 450 is disposed between the iron core of the rotor 400 and the first positioning portion 110, and in the sealant groove 130 of the first positioning portion 110.

In this embodiment, the second sealant 450 is disposed between the core of the rotor 400 and the first positioning portion 110, so as to realize potting or bonding of the rotor 400, so that the hub and the rotor 400 are integrated, thereby facilitating installation and improving assembly efficiency.

Specifically, the second sealant 450 is embedded in the rubber groove 130, and may be disposed between the end cap 420 and the rim 100 except for the rubber groove 130.

In an embodiment of the utility model, as shown in fig. 8 and 9, the vehicle includes the wheel hub of any one of the above-mentioned embodiments, and this wheel hub can promote the leakproofness between end cover 420 and rim 100, reduces the probability that impurity such as dust caused the pollution to the motor, prolongs the life of vehicle.

The hub can also lift the radial space in the rim 100, so that the outer diameter of the motor rotor 400 can be increased, and the motor performance can be improved; under the condition that the motor performance is not changed, the electromagnetic cost can be effectively reduced by increasing the outer diameter of the rotor 400, and the cost of a vehicle is further reduced.

In the claims, the specification and the drawings attached to the specification, the term "plurality" means two or more, unless there is an additional definite limitation, the terms "upper", "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings only for the purpose of describing the present invention more conveniently and simplifying the description process, but not for the purpose of indicating or implying that the referred device or element must have the described specific orientation, be constructed and operated in the specific orientation, and thus the description should not be construed as limiting the present invention; the terms "connect," "install," "fix," and the like are to be understood broadly, for example, "connect" may be a fixed connection between a plurality of objects, a detachable connection between a plurality of objects, or an integral connection; the multiple objects may be directly connected to each other or indirectly connected to each other through an intermediate. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the above data.

In the claims, the specification and drawings of the specification, the description of the term "one embodiment," "some embodiments," "specific embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the claims, the description and the drawings of the present application, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hub, comprising:

a rim;

a plurality of bosses arranged along a circumferential direction of the rim, at least one of the plurality of bosses being provided with a mounting hole extending in an axial direction of the rim, an opening of the mounting hole facing one side of the rim in the axial direction.

2. The hub of claim 1, wherein the rim comprises:

a first positioning portion, which is annular;

the second positioning part is annular and is arranged on one side of the first positioning part in the axial direction;

wherein an inner diameter of the first positioning portion is larger than an inner diameter of the second positioning portion.

3. The hub of claim 2, wherein the plurality of bosses are arranged along an outer periphery of the first and/or second locating portions.

4. The hub of claim 2, wherein a minimum distance between an edge of the mounting hole and an inner race edge of the first detent is 1 mm or greater and 5 mm or less.

5. The hub of claim 2, wherein the rim further comprises:

the glue groove is formed in the inner wall of the first positioning portion and arranged along the circumferential direction of the first positioning portion.

6. The hub of claim 2, wherein the inner diameter of the first detent is 210 mm or greater and 280 mm or less;

the inner diameter of the second positioning part is greater than or equal to 200 mm and less than or equal to 270 mm.

7. The hub of claim 2, further comprising:

a first support portion provided on a side of the first positioning portion that is close to the second positioning portion, the first support portion being provided with a valve hole;

the second supporting part is arranged on one side, away from the second positioning part, of the first positioning part.

8. The hub of any one of claims 1 to 7, wherein the mounting hole is a light hole, the hub further comprising:

the threaded sleeve is embedded in the mounting hole.

9. A hub according to any of claims 1-7, wherein the mounting holes are threaded holes.

10. A hub according to any of claims 1-7, wherein the rim is of a non-magnetically conductive material.

11. A vehicle, characterized by comprising: a hub as claimed in any one of claims 1 to 10.

12. The vehicle of claim 11, further comprising:

the rotor, the rotor includes rotor core, rotor core set up in the first location portion of rim, rotor core supports in the ascending first side of axial in the second location portion of rim.

13. The vehicle of claim 12, further comprising:

and the end cover is buckled on one side of the rim in the axial direction and is abutted against the second side of the rotor core in the axial direction.

14. The vehicle of claim 13, further comprising:

the connecting piece, the connecting piece wears to locate the end cover, and install in the mounting hole.

15. The vehicle of claim 13, further comprising:

the first sealant is arranged between the end cover and the rim.

16. The vehicle according to any one of claims 12 to 15, characterized by further comprising:

and the second sealant is arranged between the rotor core and the first positioning part and in the rubber groove of the first positioning part.