CN209505430U - Electric vehicle and its hub motor - Google Patents
Electric vehicle and its hub motor Download PDFInfo
- Publication number
- CN209505430U CN209505430U CN201822119371.8U CN201822119371U CN209505430U CN 209505430 U CN209505430 U CN 209505430U CN 201822119371 U CN201822119371 U CN 201822119371U CN 209505430 U CN209505430 U CN 209505430U
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- spindle nose
- inner ring
- wheel hub
- motor
- outer ring
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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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Abstract
The utility model discloses a kind of electric vehicle and its hub motors, the hub motor includes: spindle nose, wheel hub, electric machine assembly and brake assemblies, wherein, spindle nose includes spindle nose inner ring, the first spindle nose outer ring and the second spindle nose outer ring, first spindle nose outer ring and the second spindle nose outer ring are set on spindle nose inner ring, and opposite spindle nose inner ring is rotatablely connected；Wheel hub includes wheel hub cylinder and wheel hub cover, and wheel hub cover is connect with spindle nose inner ring, and spindle nose is located in wheel hub cylinder；Electric machine assembly setting is connect in wheel hub cylinder, and with spindle nose；Brake assemblies are connect with spindle nose, and between wheel hub cover and electric machine assembly.Brake assemblies are mounted on hub interior by the utility model, and are mounted on the outside of electric machine assembly, when carrying out the maintenance of brake assemblies, it only needs to remove wheel hub, without dismantling electric machine assembly, so as to be significantly reduced dismantling and assemble flow, so that easy to maintenance quick.
Description
Technical field
The utility model relates to hub motor technical fields, more particularly to a kind of electric vehicle and its hub motor.
Background technique
The maximum feature of hub motor technology is all to be incorporated into power, transmission and brake apparatus in wheel hub, is omitted big
The transmission parts of amount, so that the structure of vehicle becomes simpler.For traditional vehicle traction mode, wheel hub electricity
The structure of machine is more simple, and volume is more compact, and transmission efficiency is higher, thus in automobile industry using more and more extensive.
It during the traveling of electric vehicle, often needs to generate friction by brake structure and carries out brake, thus brake
The frequency of use of structure is higher.The friction of upper frequency is so that brake structure abrasion is very fast, and needs after brake structure abrasion
It is replaced or is repaired in time, to guarantee electric vehicle safe driving.The brake structure of existing hub motor is arranged in motor
Inside need to dismantle electric motor end cap and repair when carrying out the maintenance or replacement of braking mechanism, disassemble and assembled
Journey is cumbersome, time-consuming and laborious.
Utility model content
The utility model provides a kind of electric vehicle and its hub motor, to solve the braking machine of hub motor in the prior art
Structure dismantling and the cumbersome technical problem of assembling process.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of hub motor, institute
Stating hub motor includes: spindle nose, including spindle nose inner ring, the first spindle nose outer ring and the second spindle nose outer ring, outside first spindle nose
Circle and second spindle nose outer ring are set on the spindle nose inner ring, and the relatively described spindle nose inner ring rotation connection；Wheel hub, packet
Wheel hub cylinder and wheel hub cover are included, the wheel hub cover is connect with the spindle nose inner ring, and the spindle nose is located in the wheel hub cylinder；Motor group
Part, setting are connect in the wheel hub cylinder, and with the spindle nose；Brake assemblies are connect with the spindle nose, and are located at the wheel hub
Between lid and the electric machine assembly.
Optionally, the brake assemblies include: brake disc and braking mechanism, and the braking mechanism is fixed on the motor group
On part, the brake disc is fixed on the spindle nose inner ring, and the brake disc can be rotated relative to the braking mechanism.
Optionally, the brake disc is at least partly contacted with the wheel hub cover.
Optionally, the brake disc includes disk body section and auxiliary section, and the disk body section is connect with the spindle nose inner ring, described
Auxiliary section is vertical with the disk body section, and is circumferentially positioned at the week of the disk body section along upper.
Optionally, the braking mechanism includes cylinder and frictional disk, and the periphery of the auxiliary section is arranged in the frictional disk,
One end of the frictional disk is fixed on the electric machine assembly, the stretching axis connection of the other end and the cylinder；When the stretching
When axis stretches out, the frictional disk is contacted with the auxiliary section, and friction is to realize brake.
Optionally, the frictional disk includes two, and two frictional disks are separately positioned on opposite the two of the auxiliary section
Side periphery；It is provided with evacuation notch on the one end of each frictional disk connecting with the cylinder, so as to rub described in two
It will not be interfered when wiping disk with the projecting shaft interconnection.
Optionally, the spindle nose further includes ball, is located between the spindle nose inner ring and first spindle nose outer ring, with
And between the spindle nose inner ring and second spindle nose outer ring.
Optionally, the electric machine assembly includes first motor end cap, the second electric motor end cap and motor, the first motor
One end of end cap is connect with first spindle nose outer ring, and one end and second spindle nose outer ring of second electric motor end cap connect
It connects, the other end of the first motor end cap is connect with the other end of second electric motor end cap, at the first motor end
Accommodating cavity is formed between lid and second electric motor end cap, the motor is arranged in the accommodating cavity.
Optionally, the motor includes rotor, stator and connecting plate, wherein the stator is fixed on the first motor
On the inside of end cap, the rotor is connect by the connecting plate with the spindle nose inner ring, and the rotor is arranged in the stator
Circumference.
In order to solve the above technical problems, another technical solution that the utility model uses is: providing a kind of electric vehicle, electricity
Motor-car includes previously described hub motor.
The beneficial effects of the utility model are: being in contrast to the prior art, the utility model installs brake assemblies
It in hub interior, and is mounted on the outside of electric machine assembly, when carrying out the maintenance of brake assemblies, it is only necessary to remove wheel hub, and nothing
Electric machine assembly need to be dismantled, so as to be significantly reduced dismantling and assemble flow, so that easy to maintenance quick.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of hub motor of the utility model；
Fig. 2 is the decomposition texture schematic diagram of hub motor shown in Fig. 1；
Fig. 3 is the schematic cross-sectional view of hub motor shown in Fig. 1；
Fig. 4 is the schematic cross-sectional view of spindle nose in Fig. 1；
Fig. 5 is the fit structure schematic diagram of brake assemblies and electric machine assembly；
Fig. 6 is structural schematic diagram of the fit structure under another visual angle in Fig. 5；
Fig. 7 is the schematic perspective view of Fig. 5 middle friction tray；
Fig. 8 is the partial enlarged view at Fig. 3 centre circle A；
Fig. 9 is the matching relationship partial enlarged view of wheel hub cover and disk body section in another embodiment；
Figure 10 is the schematic perspective view of one embodiment first motor end cap of the application；
Figure 11 is the schematic perspective view of one the second electric motor end cap of embodiment of the application；
Figure 12 is partial enlargement diagram at Fig. 3 centre circle B；
Figure 13 is the structural schematic diagram of one embodiment of electric vehicle of the utility model.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the utility model., which there is the phrase, in each position in the description to be each meant
Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit
Ground and implicitly understand, embodiment described herein can be combined with other embodiments.
It please refers to Fig.1 to Fig.3, Fig. 1 is the structural schematic diagram of one embodiment of hub motor of the utility model, and Fig. 2 is Fig. 1
The decomposition texture schematic diagram of shown hub motor, Fig. 3 are the schematic cross-sectional views of hub motor shown in Fig. 1.
The utility model provides a kind of hub motor 100, and hub motor 100 includes: spindle nose 10, wheel hub 20, electric machine assembly
30 and brake assemblies 40.
Wherein, spindle nose 10 includes spindle nose inner ring 12, the first spindle nose outer ring 14 and the second spindle nose outer ring 16.First spindle nose outer ring
14 and second spindle nose outer ring 16 be set on spindle nose inner ring 12, and opposite spindle nose inner ring 12 is rotatablely connected.
Wheel hub 20 includes wheel hub cylinder 22 and wheel hub cover 24, and wheel hub cover 24 is connect with spindle nose inner ring 12, and spindle nose 10 is located at wheel hub
In cylinder 22.
Electric machine assembly 30 and brake assemblies 40 are respectively positioned in wheel hub cylinder 22, and are connect respectively with spindle nose 10.By that will brake
Component 40 is arranged between wheel hub cover 24 and electric machine assembly 30, when brake assemblies 40 are replaced or repaired, it is only necessary to will
Wheel hub 20 removes, without tearing electric machine assembly 30 open, so as to be significantly reduced dismantling and assemble flow, so that easy to maintenance
Fast.
Wherein, referring to Fig. 4, Fig. 4 is the schematic cross-sectional view of spindle nose in one embodiment of the application.And please refer to Fig. 2.
Spindle nose inner ring 12 has the first outer peripheral surface 122 and the second outer peripheral surface 124.Wherein, outside the first outer peripheral surface 122 and second
The setting of the interval of circumferential surface 124, and the diameter of the first outer peripheral surface 122 is greater than the diameter of the second outer peripheral surface 124.
Wherein, the first spindle nose outer ring 14 is set on the first outer peripheral surface 122, and opposite spindle nose inner ring 12 is rotatablely connected.The
Two spindle nose outer rings 16 are set on the second outer peripheral surface 124, and opposite spindle nose inner ring 12 is rotatablely connected.
Further, in the present embodiment, spindle nose 10 further includes ball 18, and ball 18 is arranged in spindle nose inner ring 12, first
At the cooperation of spindle nose outer ring 14 and the second spindle nose outer ring 16, so that spindle nose inner ring 12, the first spindle nose outer ring 14 and the second spindle nose
Outer ring 16 is rotatablely connected.
As shown in figure 4, the ball 18 between the first outer peripheral surface 122 of setting and the first spindle nose outer ring 14, so that the first spindle nose
Outer ring 14 can be rotated relative to spindle nose inner ring 12.Ball 18 between second outer peripheral surface 124 and the second spindle nose outer ring 16 is set,
Second spindle nose outer ring 16 is rotated relative to spindle nose inner ring 12.
Specifically, it is formed with the first ball track 1222 on the first outer peripheral surface 122 of spindle nose inner ring 12, in the second periphery
The second ball track 1242 is formed on face 124.It is formed on the inner peripheral surface of the first spindle nose outer ring 14 and the first ball track
1222 corresponding third ball tracks 142 are formed with and the second ball track 1242 on the inner peripheral surface of the second spindle nose outer ring 16
Corresponding 4th ball track 162.
At the cooperation of spindle nose inner ring 12 and the first spindle nose outer ring 14, ball 18 is located in the first ball track 1222 and
Between three ball tracks 142.By the way that ball 18 is arranged between the first spindle nose outer ring 14 and spindle nose inner ring 12, ball 18 is utilized
Rolling friction replaces sliding friction, and the friction between first axle head outer ring 14 and spindle nose inner ring 12 can be made smaller, and rotation is more
Add flexibly.
At the cooperation of spindle nose inner ring 12 and the second spindle nose outer ring 16, ball 18 is located in the second ball track 1242 and
Between four ball tracks 162.By the way that ball 18 is arranged between the second spindle nose outer ring 16 and spindle nose inner ring 12, rolling friction is used
Instead of sliding friction so that the friction between the second spindle nose outer ring 16 and spindle nose inner ring 12 is smaller, rotate more flexible.
Optionally, setting is between spindle nose inner ring 12 and the first spindle nose outer ring 14 and outside spindle nose inner ring 12 and the second spindle nose
The group number of ball 18 between circle 16 is at least one set.Ball between spindle nose inner ring 12 and the first spindle nose outer ring 14 is set
18 can have one group, two groups or three groups etc..Ball 18 between spindle nose inner ring 12 and the second spindle nose outer ring 16 is arranged in can be with
There is one group, two groups or three groups etc..The utility model is not specifically limited, can be according to the stress feelings of each section of spindle nose 10
The ball 18 of suitable group number is arranged, so that 10 stress equalization of spindle nose, prevents from being broken because local pressure is excessive in condition.
As shown in figure 4, one group of ball 18 is set between spindle nose inner ring 12 and the first spindle nose outer ring 14, and in spindle nose inner ring
12 and second are arranged two groups of balls 18 between spindle nose outer ring 16.
Certainly, in other embodiments, spindle nose inner ring 12 can also be with the first spindle nose outer ring 14 and the second spindle nose outer ring
16 are directly rotatably assorted, i.e., spindle nose inner ring 12 is plugged into the first spindle nose outer ring 14 and the second spindle nose outer ring 16, and spindle nose inner ring
12 periphery is contacted with the inner circumferential of the first spindle nose outer ring 14 and the rotation of the inner circumferential of the second spindle nose outer ring 16 respectively, to realize rotation
Cooperation.
Further, weight loss groove 126 is formed on an at least end face for spindle nose inner ring 12.It can be in spindle nose inner ring 12
A wherein end face on formed weight loss groove 126, weight loss groove 126 can also be formed simultaneously on two end faces of spindle nose inner ring 12,
The weight loss groove 126 through spindle nose inner ring 12 can also be formed.Weight loss groove 126 can for round, rectangle or Else Rule or
Irregular shape, the utility model are not specifically limited the shape and size of weight loss groove 126.
As shown in figure 4, in the present embodiment, it is formed with the first sub- weight loss groove on a wherein end face for spindle nose inner ring 12,
The second sub- weight loss groove is formed on the other end of spindle nose inner ring 12, the first sub- weight loss groove is not connected to the second sub- weight loss groove,
It is located at the strength reduction of the junction of the first outer peripheral surface 122 and the second outer peripheral surface 124 to avoid spindle nose inner ring 12, and leads to spindle nose
10 fractures.
By the setting weight loss groove 126 on spindle nose inner ring 12, the weight of hub motor 100 can be greatly reduced, thus
Driving force is reduced, resource is saved.
Optionally, the first mounting hole 144, i.e. the first mounting hole are offered on a wherein end face for the first spindle nose outer ring 14
144 can be formed on the either end facet of the first spindle nose outer ring 14.The setting position of first mounting hole 144 can be according to first axle
Installation space near head outer ring 14 is reasonably selected.
Certainly, the first mounting hole 144 may also extend through the first spindle nose outer ring 14.For example, in embodiment as shown in Figure 3
In, the thickness of the first spindle nose outer ring 14 is smaller, and the first mounting hole 144 is arranged axially through the first spindle nose outer ring 14, can make
The maximum length for obtaining the first mounting hole 144, to promote bonding strength.
Optionally, the second mounting hole 164 is offered on end face of the second spindle nose outer ring 16 far from the first spindle nose outer ring 14.The
Two mounting holes 164 can run through or not through the second spindle nose outer ring 16, the utility model is not specifically limited herein.
The quantity of first mounting hole 144 and the second mounting hole 164 is at least three, and respectively around the first spindle nose outer ring
14 and second spindle nose outer ring 16 circumferential uniformly arrangement.Element peace is being carried out using the first mounting hole 144 and the second mounting hole 164
When dress, evenly arranged first mounting hole 144 and the second mounting hole 164 can make element uniform force, so that connection
It is more stable.
Optionally, as shown in figure 3, in spindle nose inner ring 12 between the first spindle nose outer ring 14 and the second spindle nose outer ring 16
Third mounting hole 128 is also provided on end face, third mounting hole 128 is used for fixed connecting plate 366.
Fig. 5 and Fig. 6 are please referred to, Fig. 5 is the fit structure schematic diagram of brake assemblies and electric machine assembly, and Fig. 6 is matching in Fig. 5
Close structural schematic diagram of the structure under another visual angle.
Brake assemblies 40 include brake disc 42 and braking mechanism 44.Wherein, brake disc 42 is fixed on spindle nose inner ring 12, is stopped
Mechanism of car 44 is fixed on electric machine assembly 30.In electric vehicle operation, brake disc 42 is not contacted with braking mechanism 44, brake disc 42
It is rotated with spindle nose inner ring 12, braking mechanism 44 is static with respect to electric vehicle, and brake disc 42 can be rotated relative to braking mechanism 44.
Please continue to refer to Fig. 2, Fig. 5 and Fig. 6, brake disc 42 includes disk body section 422 and auxiliary section 424.Wherein, disk body section
422 be in circular ring shape, is fixed by screws on spindle nose inner ring 12.Auxiliary section 424 is arranged around disk body section 422, from disk body section 422
Extend along to the direction far from electric machine assembly 30 in week, and auxiliary section 424 is perpendicular to disk body section 422.
Braking mechanism 44 includes cylinder 442 and frictional disk 444.Wherein, the periphery of auxiliary section 424 is arranged in frictional disk 444,
One end is fixed on electric machine assembly 30, and the other end is connect with the projecting shaft 4422 of cylinder 442.When electric vehicle operation, frictional disk
444 are arranged with the interval of auxiliary section 424.When needing to brake, the projecting shaft 4422 of cylinder 442 stretches out, and drives frictional disk 444
One end is mobile to the direction close to auxiliary section 424, so that frictional disk 444 is contacted with auxiliary section 424.When due to electric vehicle operation,
Frictional disk 444 is with respect to vehicle stationary, and auxiliary section 424 is with respect to motor racing, and when the two contact, the frictional force of generation can be reduced
The velocity of rotation of the relative friction disk 444 of auxiliary section 424, and then realize brake.
Optionally, as shown in figure 5, being additionally provided with friction plate 446 between auxiliary section 424 and frictional disk 444.The friction plate
446 are fixed on frictional disk 444 close to 424 side of auxiliary section.When electric vehicle operates normally, it is spaced and is arranged with auxiliary section 424.When
Frictional disk 444 close to auxiliary section 424 to be braked when, friction plate 446 contacted first with auxiliary section 424 generation friction.Pass through
Friction plate 446 is set close to 424 side of auxiliary section in frictional disk 444, it is possible to reduce to the abrasion of frictional disk 444 when brake, from
And improve the service life of frictional disk 444.
It is alternatively possible to which the board making frictional disk 444 for selecting such as steel equal strength high, selects the surface such as rubber
The big material of roughness makes friction plate 446.On the one hand cost can be saved, on the other hand can also be improved brake assemblies 40
Service life.
Wherein, the quantity of frictional disk 444 can be one, a projecting shaft 4422 of a frictional disk 444 and cylinder 442
Connection.It is, of course, also possible to multiple frictional disks 444 be arranged, to increase contact area, increasing friction force, to improve braking efficiency.
For example, in the present embodiment, as shown in figure 5, braking mechanism 44 includes two frictional disks 444, and two frictional disks
444 are separately positioned on the opposite sides periphery of auxiliary section 424, so that the both ends uniform force of cylinder 442.
Further, referring to Fig. 6, and combine Fig. 7, Fig. 7 is the schematic perspective view of Fig. 5 middle friction tray.It is rubbing
Evacuation notch 4442 is provided on one end that disk 444 is connect with cylinder 442.It is stretched when two frictional disks 444 intersect with cylinder 442
When shaft 4422 connects, which can prevent two frictional disks 444 from interfering when intersecting at cylinder 442.
Wherein, in the present embodiment, which is rectangle.In other embodiments, the evacuation notch 4442
It can also be the shapes such as arc-shaped, trapezoidal.The application is not specifically limited.
The present embodiment, the frictional force generated by brake disc 42 and frictional disk 444 friction being arranged on electric machine assembly 30
Brake, 44 structure novel of braking mechanism, and the small volume of brake assemblies 40, setting wheel hub 20 and electric machine assembly 30 it
Between, it is not take up larger space, so that the layout of hub motor 100 is more reasonable, structure is more compact.
Since the disk body section 422 of wheel hub cover 24 and brake disc 42 is also secured on spindle nose inner ring 12, can be set
Brake disc 42 is at least partly contacted with wheel hub cover 24, so that the heat that the brake of brake disc 42 generates can more be transmitted to wheel
It on hub 20, and is the heat dissipation of brake disc 42 by wheel hub 20.It avoids heat from conducting to electric machine assembly 30, and sends out electric machine assembly 30
Heat, to influence the normal operation of hub motor 100.
Fig. 3 and Fig. 8 are please referred to, Fig. 8 is the partial enlarged view at Fig. 3 centre circle A.
In the present embodiment, the inner ring diameter of disk body section 422 is less than contacting with what spindle nose inner ring 12 contacted for wheel hub cover 24
The maximum gauge in face, so that disk body section 422 and wheel hub cover 24 be with spindle nose inner ring 12 when being fixedly connected, disk body section 422 and wheel
Hub cap 24 partly overlaps.The overlapping region can be used for the heat transfer of brake disc 42 to wheel hub cover 24.
Further, as shown in figure 9, Fig. 9 is the matching relationship partial enlargement of wheel hub cover and disk body section in another embodiment
Figure.
In the present embodiment, the inner ring diameter of disk body section 422 is equal to the inner ring diameter of wheel hub cover 24.At this point, wheel hub cover 24
Connecting hole for being connect with spindle nose inner ring 12 and the through-hole for being connect with spindle nose inner ring 12 of disk body section 422 it is mutually right
It answers.The through-hole that screw sequentially passes through on connecting hole and disk body section 422 on wheel hub cover 24 is connect with spindle nose inner ring 12, thus will wheel
Hub cap 24 and disk body section 422 are also secured on spindle nose inner ring 12.In this way, the quantity of element can be further reduced, peace is reduced
Step is filled, installation effectiveness is promoted.
Referring to Fig. 3, electric machine assembly 30 includes first motor end cap 32, the second electric motor end cap 34 and motor 36.Wherein,
One end of first motor end cap 32 is connect with the first spindle nose outer ring 14, one end of the second electric motor end cap 34 and the second spindle nose outer ring 16
Connection, the other end of first motor end cap 32 is connect with the other end of the second electric motor end cap 34, in 32 He of first motor end cap
Accommodating cavity 38 is formed between second electric motor end cap 34, motor 36 is arranged in accommodating cavity 38.
Specifically, referring to Fig. 3, and combining Figure 10, Figure 10 is the three-dimensional knot of one embodiment first motor end cap of the application
Structure schematic diagram.
First motor end cap 32 includes the first sub- ceiling plate portion 322 and the first sub-set canister portion 324.First sub-set canister portion 324 is certainly
The surface of first sub- ceiling plate portion 322 extends to the direction of the second electric motor end cap 34, and vertical with the first sub- ceiling plate portion 322.
Optionally, the lateral wall of the first sub-set canister portion 324, which protrudes above, is provided with the first screw hole 3242.In the present embodiment
In, the bulge clearance of the first screw hole 3242 of setting is arranged in 324 lateral wall of the first sub-set canister portion far from the first sub- ceiling plate portion 322
Circumference on.
It in other embodiments, can also be in circumference of 324 lateral wall of the first sub-set canister portion far from the first sub- ceiling plate portion 322
The upper continuous annular protrusion of setting, and the first screw hole 3242 is opened up on annular protrusion.Continuous annular protrusion can reduce
The processing complexity of first motor end cap 32.
Referring to Fig. 3, and combining Figure 11, Figure 11 is the stereochemical structure signal of one the second electric motor end cap of embodiment 34 of the application
Figure.
Second electric motor end cap 34 includes the second sub- ceiling plate portion 342 and the second sub-set canister portion 344.Second sub-set canister portion 344 is certainly
The surface of second sub- ceiling plate portion 342 extends to the direction of first motor end cap 32, and vertical with the second sub- ceiling plate portion 342.
Second sub-set canister portion 344 is provided with shielding part 346 far from one end of the second sub- ceiling plate portion 342, and shielding part 346 is arranged
On the lateral wall of the second sub-set canister portion 344, and from the outer side wall surface of the second sub-set canister portion 344 to the direction far from spindle nose 10
Extend.
Further, the second screw hole 3462, the second screw hole 3462 and the first screw hole are formed on shielding part 346
3242 are correspondingly arranged.
As shown in figure 3, the first sub- ceiling plate portion 322 is arranged in parallel with the second sub- ceiling plate portion 342, and the first sub- ceiling plate portion 322
It is connect with the first spindle nose outer ring 14, the second sub- ceiling plate portion 342 is connect with the second spindle nose outer ring 16, the first sub-set canister portion 324 and
The end of two sub-set canister portions 344 is connected with each other.
Specifically, Fig. 3 and Figure 12 are please referred to, Figure 12 is partial enlargement diagram at Fig. 3 centre circle B.
After screw passes through the second screw hole 3462, it is cooperatively connected with the first screw hole 3242, thus by the first sub-set canister portion
324 connect with the end of the second sub-set canister portion 344.
As shown in Figures 2 and 3, motor 36 includes rotor 362, stator 364 and connecting plate 366.Wherein, stator 364 is fixed
In 32 inside of first motor end cap.In electric vehicle operation, opposite electric vehicle is remain stationary.Connecting plate 366 is fixed by rotor 362
On spindle nose inner ring 12.When electric vehicle is run, rotated with spindle nose inner ring 12.The inner circumferential side of stator 364 is arranged in rotor 362,
And rotor 362 can be rotated with relative stator 364.
Specifically, one end of connecting plate 366 is fixedly connected with the third mounting hole 128 on spindle nose inner ring 12, the other end with
Rotor 362 connects, so that rotor 362 be connect with spindle nose inner ring 12.
With continued reference to Figure 12, motor slot 3244, the second sub-set canister portion are formed on the inner sidewall of the first sub-set canister portion 324
344, which extend protrusion close to the end of 324 side of the first sub-set canister portion, is provided with abutting part 348.Stator 364 is accommodated in motor slot
In 3244, when the first sub-set canister portion 324 is connect with the second sub-set canister portion 344, abutting part 348 is connected on stator 364, will
Stator 364 is fixed in motor slot 3244.
Wherein, after the first sub-set canister portion 324 and the second sub-set canister portion 344 are fixed, abutting part 348 and with 348 phase of abutting part
It is slightly smaller than the thickness of stator 364 to the minimum range between 3244 side wall of motor slot of setting, so that stator 364 can be fastened
In the first sub-set canister portion 324.
Specifically, when being assembled, first motor end cap and the second electric motor end cap are heated first, so that first
Electric motor end cap and the second electric motor end cap expanded by heating.At this point, the thickness of stator 364 with after connection abutting part 348 and with abut
The distance between 3244 side wall of motor slot that portion 348 is oppositely arranged is equal.When first motor end cap and the second electric motor end cap are cooling
Afterwards, volume contraction.The distance between abutting part 348 and 3244 side wall of motor slot being oppositely arranged with abutting part 348 are less than stator
364 thickness, so that stator 364 is clamped between the first sub-set canister portion 324 and the second sub-set canister portion 344.
The utility model additionally provides a kind of electric vehicle 200, please refers to Figure 13, and Figure 13 is the electric vehicle one of the utility model
The structural schematic diagram of embodiment.
Electric vehicle 200 may include hub motor 100, wherein the structure of hub motor 100 and previously described wheel hub electricity
The structure of machine 100 is identical, and this will not be repeated here, please refers to described previously.
Hub motor 100 in the present embodiment is electrically connected with the battery of electric vehicle 200, provides the energy for electric energy by battery
It is converted into mechanical energy, so as to realize the running of electric vehicle 200.Wherein electric vehicle 200 can be pure electric vehicle type electric vehicle
It can be mixed motivity type electric vehicle, it is not limited here.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other relevant technical fields, are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of hub motor, which is characterized in that the hub motor includes:
Spindle nose, including spindle nose inner ring, the first spindle nose outer ring and the second spindle nose outer ring, first spindle nose outer ring and described second
Spindle nose outer ring is set on the spindle nose inner ring, and the relatively described spindle nose inner ring rotation connection；
Wheel hub, including wheel hub cylinder and wheel hub cover, the wheel hub cover are connect with the spindle nose inner ring, and the spindle nose is located at the wheel hub
In cylinder；
Electric machine assembly, setting are connect in the wheel hub cylinder, and with the spindle nose；
Brake assemblies are connect with the spindle nose, and between the wheel hub cover and the electric machine assembly.
2. hub motor according to claim 1, which is characterized in that the brake assemblies include: brake disc and braking machine
Structure, the braking mechanism are fixed on the electric machine assembly, and the brake disc is fixed on the spindle nose inner ring, the brake disc
It can be rotated relative to the braking mechanism.
3. hub motor according to claim 2, which is characterized in that the brake disc at least partly connects with the wheel hub cover
Touching.
4. hub motor according to claim 2, which is characterized in that the brake disc includes disk body section and auxiliary section, institute
It states disk body section to connect with the spindle nose inner ring, the auxiliary section is vertical with the disk body section, and is circumferentially positioned at the disk body section
Week along upper.
5. hub motor according to claim 4, which is characterized in that the braking mechanism includes cylinder and frictional disk, institute
State the periphery that the auxiliary section is arranged in frictional disk, one end of the frictional disk is fixed on the electric machine assembly, the other end with
The stretching axis connection of the cylinder；
When the projecting shaft stretches out, the frictional disk is contacted with the auxiliary section, and friction is to realize brake.
6. hub motor according to claim 5, which is characterized in that the frictional disk includes two, two frictions
Disk is separately positioned on the opposite sides periphery of the auxiliary section；On the one end of each frictional disk being connect with the cylinder
It is provided with evacuation notch, will not be interfered when so that two frictional disks are with the projecting shaft interconnection.
7. hub motor according to claim 1, which is characterized in that the spindle nose further includes ball, is located in the axis
Between head inner ring and first spindle nose outer ring and between the spindle nose inner ring and second spindle nose outer ring.
8. hub motor according to claim 1, which is characterized in that the electric machine assembly includes first motor end cap,
One end of two electric motor end caps and motor, the first motor end cap is connect with first spindle nose outer ring, second motor
One end of end cap is connect with second spindle nose outer ring, the other end of the first motor end cap and second electric motor end cap
Other end connection, to form accommodating cavity, the motor setting between the first motor end cap and second electric motor end cap
In the accommodating cavity.
9. hub motor according to claim 8, which is characterized in that the motor includes rotor, stator and connecting plate,
In, the stator is fixed on the inside of the first motor end cap, and the rotor is connect by the connecting plate with the spindle nose inner ring,
And the inner circumferential side of the stator is arranged in the rotor.
10. a kind of electric vehicle, which is characterized in that the electric vehicle includes wheel hub electricity as claimed in any one of claims 1-9 wherein
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119371.8U CN209505430U (en) | 2018-12-14 | 2018-12-14 | Electric vehicle and its hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119371.8U CN209505430U (en) | 2018-12-14 | 2018-12-14 | Electric vehicle and its hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209505430U true CN209505430U (en) | 2019-10-18 |
Family
ID=68195277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822119371.8U Active CN209505430U (en) | 2018-12-14 | 2018-12-14 | Electric vehicle and its hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209505430U (en) |
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2018
- 2018-12-14 CN CN201822119371.8U patent/CN209505430U/en active Active
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Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co., Ltd Address before: 518104, Guangdong, Shenzhen province Baoan District manhole street, oyster Road, manhole Industrial Company Third Industrial Zone, A1, A2, A3 101, A4 first, second, third layers Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |