CN208445462U - A kind of hub motor for electric automobile lightweight structure - Google Patents
A kind of hub motor for electric automobile lightweight structure Download PDFInfo
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- CN208445462U CN208445462U CN201821002705.7U CN201821002705U CN208445462U CN 208445462 U CN208445462 U CN 208445462U CN 201821002705 U CN201821002705 U CN 201821002705U CN 208445462 U CN208445462 U CN 208445462U
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- rotor
- ring
- stator
- bracket
- wheel rim
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Abstract
The utility model relates to a kind of hub motor for electric automobile lightweight structures, including tire, wheel rim, rotor, stator, stator support and axis, tire is placed on wheel rim, the inner ring of wheel rim is connected with rotor, the inside of rotor is equipped with multiple block-like permanent magnets, the inside of permanent magnet is equipped with stator, stator winding is wound on the tooth of stator, stator support is connected on the inside of stator, the front end of rotor is connected with rotor drive end bearing bracket, the rear end of rotor is connected with rotor rear end cap, rotor rear end cap is connected on casing and is interference fitted on bearing together with casing, axis passes through casing, bearing and rotor rear end cap are fixed together with stator support, the axle center of axis is equipped with for the through-hole across conducting wire.The utility model has carried out reasonably optimizing to electric machine structure, reduces motor weight, and connection structure is secured, seals outstanding, improves motor inner space utilization rate, is conducive to overcome hub motor volume and the larger disadvantage of quality.
Description
Technical field
The utility model relates to technical field of motors more particularly to a kind of lightweight knots of hub motor for electric automobile
Structure.
Background technique
It is pollution-free with the continuous deterioration of the continuous consumption and environmental aspect of the fossil energies such as coal, petroleum, natural gas, it makes an uproar
Sound is low and does not depend on the electric car of fossil energy and is increasingly becoming the important development trend of automobile industry.In recent years, countries in the world
One after another using electric car as the hot spot of scientific research.In the various driving methods of electric car, In-wheel motor driving mode
Because its efficiency of transmission is high, controls the original advantage such as flexible, gradually by the favor of insider, future development space is huge.
In-wheel motor driving mode is all to be incorporated into power, transmission and its brake apparatus in wheel hub, is thus saved
A large amount of mechanical parts such as clutch, transmission, transmission shaft, differential mechanism, keep the vehicle structure greatly simplified, and vehicle noise is extremely low,
Complete vehicle quality mitigates, and not only improves efficiency of energy utilization, increases the riding space of automobile, also the electronics to realize chassis system
Change, intelligence provides guarantee.But the use of hub motor will increase nonspring carried mass, and then influence the steady of vehicle operation
Property and controllability.
Hub motor can be divided into deceleration according to driving method and directly drive two ways, and motor is more when directly driving
Using outer rotor form, advantage does not need deceleration mechanism mainly, and dynamic response is fast, and efficiency further increases, axial dimension
Reduce, entire driving wheel is simpler, compact, and maintenance cost supports.The disadvantage is that volume and quality are larger, and it is at high cost, constrain wheel
The further development and application of hub motor, thus the loss of weight problem of direct-drive type hub motor is that electric car field is urgently to be resolved
The problem of.
Utility model content
Purpose of utility model
The utility model provides a kind of hub motor for electric automobile lightweight structure, has carried out to electric machine structure reasonable excellent
Change, reduce motor weight, connection structure is secured, and sealing is outstanding, improves motor inner space utilization rate, is conducive to overcome wheel hub
Motor volume and the larger disadvantage of quality.
Technical solution
A kind of hub motor for electric automobile lightweight structure, including tire, wheel rim, rotor, stator, stator support and
Axis, it is characterised in that: tire is placed on wheel rim, and the inner ring of wheel rim is connected with rotor, the inside of rotor be equipped with it is multiple it is block-like forever
Magnet, the inside of permanent magnet are equipped with stator, are wound with stator winding on the tooth of stator, are connected with stator support on the inside of stator,
The front end of rotor is connected with rotor drive end bearing bracket, and the rear end of rotor is connected with rotor rear end cap, and rotor rear end cap is connected on casing
And be interference fitted on bearing together with casing, axis passes through casing, bearing and rotor rear end cap and stator support is fixed together,
The axle center of axis is equipped with for the through-hole across conducting wire.
The inner ring of the wheel rim has connection ring in the wheel rim integrated with it, and the outer ring of rotor has to be connected with outside the rotor of its one
Ring is connect, multiple bolts pass through connection ring and the outer connection ring of rotor in wheel rim, wheel rim and rotor are linked together.
Connection ring is equipped with multiple interior connection ring counterbores in the wheel rim, and the outer connection ring of rotor is heavy equipped with multiple outer connection rings
Hole, interior connection ring counterbore is identical with the quantity of outer connection ring counterbore and position is corresponding, passes through interior connection ring counterbore and outer connection
The nuts of ring counterbore is located inside counterbore.
The inner ring of the stator is equipped with stator inner ring positioning groove, and the outer ring of stator support is positioned equipped with stator support outer ring
Shape, quantity and the position of protrusion, stator inner ring positioning groove and stator support outer ring positioning protrusion match.
The stator support is made of bracket inner ring, bracket outer ring and support spoke, and support spoke is set in bracket
The two is connected between ring and bracket outer ring, multiple fixation holes for fixing axle are equipped in bracket, positioning jackscrew passes through solid
Determine hole to withstand on axis, a circle retention bead is equipped in bracket inner ring.
There are three the support spokes, and the angle between support spoke is 120 °.
The thickness of the bracket inner ring axial direction is the 1/4 of the outer ring thickness of bracket, and the thickness of support spoke axial direction is less than or equal to
The thickness of bracket inner ring axial direction, support spoke and the axial width of bracket outer ring junction constantly increase with far from center of circle thickness
Add, thickness is greater than the 1/2 of the outer ring thickness of bracket.
Through-hole one end of the axis is equipped with 2 sealing rings, and inner seal ring outer diameter is less than exterior seal ring, and inner seal ring is by outer close
Seal sufficiently squeezes sealing.
The fixing clasp for reinforcing fixing bearing is equipped on the axis at bearing, fixing clasp is identical by two
Semi-ring composition circumferential clasp, fixing clasp is fixed on axis by bolt-through axis and fixing clasp, and diameter of bolt is small at this
In the through-hole for passing through conducting wire, so that bolt will not hinder conducting wire projecting shaft at this.
Advantage and effect
1. stator support is not solid construction, by three radiation between two annulus of the different annulus of two radiuses and connection
Shape spoke forms, and the angle between spoke is 120 °, is integrally cast by aluminium alloy.If motor, there are air-cooled measure, wind can
To complete internal circulation by the gap between spoke.
2. rationally reducing the thickness of spoke, the space that thin structure is saved inside stator support can place drive system
Other components, improve motor inner space utilization rate, internal structure of motor is more compact and reasonable.
3. stable structure, good airproof performance guarantee that electric machine structure meets performance requirement while mitigating motor weight.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram that the utility model is seen from rear side；
Fig. 2 is the stereoscopic schematic diagram that the utility model is seen from front side；
Fig. 3 is the internal structure stereoscopic schematic diagram that the utility model does not install rotor drive end bearing bracket；
Fig. 4 is the stereogram exploded view of the utility model structure；
Fig. 5 is the stereoscopic schematic diagram that stator support is seen from rear side；
Fig. 6 is the stereoscopic schematic diagram that stator support is seen from front side；
Fig. 7 is the utility model vertical section organigram.
Description of symbols:
1. tire, 2. wheel rims, 3. rotors, 4. stators, 5. stator winding, 6. permanent magnets, 7. stator supports, 8. casings, 9.
Bearing, 10. axis, 11. fixing clasps, 12. rotor drive end bearing brackets, 13. rotor rear end caps, connection ring in 14. wheel rims, outside 15. rotors
Connection ring, 17. outer connection ring counterbores, 18. stator inner ring positioning grooves, is drawn a circle to approve outside 19. stator supports connection ring counterbore in 16.
Position protrusion, 20. inner seal rings, 21. exterior seal rings, 22. bracket inner ring, 23. support spokes, 24. fixation holes, 25. conducting wires, 26.
Bracket outer ring, 27. retention beads.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and a kind of hub motor for electric automobile lightweight structure shown in Fig. 7,
Tire 1 is placed on wheel rim 2, and the inner ring of wheel rim 2 is connected with rotor 3, and the inner ring of wheel rim 2 has and connection ring in the wheel rim of its one
14, the outer ring of rotor 3 has to be passed through connection ring 14 and rotor in wheel rim and connects outside with connection ring 15 outside the rotor of its one, multiple bolts
Ring 15 is connect, wheel rim 2 and rotor 3 are linked together.Connection ring 14 is equipped with multiple interior connection ring counterbores 16 in wheel rim, connects outside rotor
Ring 15 is connect equipped with multiple outer connection ring counterbores 17, interior connection ring counterbore 16 is identical with the quantity of outer connection ring counterbore 17 and position phase
It is corresponding, it is located inside counterbore across the nuts of interior connection ring counterbore 16 and outer connection ring counterbore 17, connects stronger and bolt
Cap will not scratch with other component.The inside of rotor 3 is equipped with multiple block-like permanent magnets 6, and the inside of permanent magnet 6 is equipped with stator 4,
Stator winding 5 is wound on the tooth of stator 4, the inside of stator 4 is connected with the stator support 7 of aluminum alloy materials, the inner ring of stator 4
Equipped with stator inner ring positioning groove 18, the outer ring of stator support 7 is equipped with stator support outer ring positioning protrusion 19, the positioning of stator inner ring
Shape, quantity and the position of groove 18 and stator support outer ring positioning protrusion 19 match.Stator support 7 is by bracket inner ring
22, bracket outer ring 26 and support spoke 23 form, and support spoke 23 is set to two between bracket inner ring 22 and bracket outer ring 26
Person's connection, bracket inner ring 22 are equipped with multiple fixation holes 24 for fixing axle, and positioning jackscrew passes through fixation hole 24 and withstands on axis 10,
A circle retention bead 27 is equipped in bracket inner ring 22, for limiting the axial position of axis 10.There are three support spokes 23, bracket spoke
Angle between item 23 is 120 °.The axial thickness of bracket inner ring 22 is the 1/4 of 26 thickness of bracket outer ring, and support spoke 23 is axial
Thickness be less than or equal to the axial thickness of bracket inner ring 22, the axial width of support spoke 23 and 26 junction of bracket outer ring with
It is continuously increased far from center of circle thickness, thickness is greater than the 1/2 of 26 thickness of bracket outer ring, such thickness design spin stabilization.Rotor 3
Front end be connected with rotor drive end bearing bracket 12, the rear end of rotor 3 is connected with rotor rear end cap 13, and rotor rear end cap 13 is connected to casing
Be interference fitted on bearing 9 together on 8 and with casing 8, rotor rear end cap 13 and casing 8 can be cast in it is integrated, can also
To be welded to together, structure is more firm if casting integrated, and axis 10 passes through casing 8, bearing 9 and rotor rear end cap 13
It is fixed together with stator support 7, the axle center of axis 10 is equipped with for the through-hole across conducting wire 25.Through-hole one end of axis 10 is equipped with 2
Road sealing ring, 20 outer diameter of inner seal ring are less than exterior seal ring 21, and inner seal ring 20 sufficiently squeezes sealing by exterior seal ring 21.Axis 10
The upper fixing clasp 11 being equipped at bearing 9 for reinforcing fixing bearing 9, fixing clasp 11 is by two identical semi-ring groups
At circumferential clasp, fixing clasp is fixed on axis 10 by bolt-through axis 10 and fixing clasp 11, and diameter of bolt is less than at this
For passing through the through-hole of conducting wire 25, so that bolt will not hinder 25 projecting shaft 10 of conducting wire at this.
Claims (9)
1. a kind of hub motor for electric automobile lightweight structure, including it is tire (1), wheel rim (2), rotor (3), stator (4), fixed
Submounts (7) and axis (10), it is characterised in that: tire (1) is placed on wheel rim (2), and the inner ring of wheel rim (2) is connected with rotor (3),
The inside of rotor (3) is equipped with multiple block-like permanent magnets (6), and the inside of permanent magnet (6) is equipped with stator (4), on the tooth of stator (4)
It is wound with stator winding (5), is connected on the inside of stator (4) stator support (7), the front end of rotor (3) is connected with rotor front end
Cover (12), the rear end of rotor (3) is connected with rotor rear end cap (13), rotor rear end cap (13) be connected on casing (8) and with set
Pipe (8) is interference fitted in together on bearing (9), and axis (10) passes through casing (8), bearing (9) and rotor rear end cap (13) and stator
Bracket (7) is fixed together, and the axle center of axis (10) is equipped with for the through-hole across conducting wire (25).
2. hub motor for electric automobile lightweight structure according to claim 1, it is characterised in that: the wheel rim (2)
Inner ring have with its one wheel rim in connection ring (14), the outer ring of rotor (3) have with its one rotor outside connection ring (15),
Multiple bolts pass through connection ring (14) and the outer connection ring (15) of rotor in wheel rim, and wheel rim (2) and rotor (3) are linked together.
3. hub motor for electric automobile lightweight structure according to claim 2, it is characterised in that: connect in the wheel rim
Ring (14) are connect equipped with multiple interior connection ring counterbores (16), the outer connection ring (15) of rotor is equipped with multiple outer connection ring counterbores (17), interior
Connection ring counterbore (16) is identical with the quantity of outer connection ring counterbore (17) and position is corresponding, pass through interior connection ring counterbore (16) and
The nuts of outer connection ring counterbore (17) is located inside counterbore.
4. hub motor for electric automobile lightweight structure according to claim 1, it is characterised in that: the stator (4)
Inner ring be equipped with stator inner ring positioning groove (18), the outer ring of stator support (7) is equipped with stator support outer ring positioning protrusion (19),
Shape, quantity and the position of stator inner ring positioning groove (18) and stator support outer ring positioning protrusion (19) match.
5. hub motor for electric automobile lightweight structure according to claim 1, it is characterised in that: the stator support
(7) it is made of bracket inner ring (22), bracket outer ring (26) and support spoke (23), support spoke (23) is set to bracket inner ring
(22) the two being connected between bracket outer ring (26), bracket inner ring (22) is equipped with multiple fixation holes (24) for fixing axle,
Positioning jackscrew passes through fixation hole (24) and withstands on axis (10), and circle retention bead (27) is equipped in bracket inner ring (22).
6. hub motor for electric automobile lightweight structure according to claim 5, it is characterised in that: the support spoke
(23) there are three, the angle between support spoke (23) is 120 °.
7. hub motor for electric automobile lightweight structure according to claim 5, it is characterised in that: the bracket inner ring
(22) axial thickness is the 1/4 of bracket outer ring (26) thickness, and the thickness of support spoke (23) axial direction is less than or equal to bracket inner ring
(22) axial width of axial thickness, support spoke (23) and bracket outer ring (26) junction is continuous with separate center of circle thickness
Increase, thickness is greater than the 1/2 of bracket outer ring (26) thickness.
8. hub motor for electric automobile lightweight structure according to claim 1, it is characterised in that: the axis (10)
Through-hole one end is equipped with 2 sealing rings, and inner seal ring (20) outer diameter is less than exterior seal ring (21), and inner seal ring (20) is by exterior seal ring
(21) sealing is sufficiently squeezed.
9. hub motor for electric automobile lightweight structure according to claim 1, it is characterised in that: on the axis (10)
The fixing clasp (11) for reinforcing fixing bearing (9) is equipped at bearing (9), fixing clasp (11) is identical by two
The circumferential clasp of semi-ring composition, fixing clasp is fixed on axis (10) by bolt-through axis (10) and fixing clasp (11), at this
The diameter of bolt is less than for the through-hole across conducting wire (25), so that bolt will not hinder conducting wire (25) projecting shaft (10) at this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002705.7U CN208445462U (en) | 2018-06-27 | 2018-06-27 | A kind of hub motor for electric automobile lightweight structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002705.7U CN208445462U (en) | 2018-06-27 | 2018-06-27 | A kind of hub motor for electric automobile lightweight structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208445462U true CN208445462U (en) | 2019-01-29 |
Family
ID=65087121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821002705.7U Expired - Fee Related CN208445462U (en) | 2018-06-27 | 2018-06-27 | A kind of hub motor for electric automobile lightweight structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208445462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539945A (en) * | 2018-06-27 | 2018-09-14 | 沈阳工业大学 | A kind of hub motor for electric automobile lightweight structure |
| US11791679B2 (en) | 2021-08-19 | 2023-10-17 | Nidec Motor Corporation | Spoked rotor having deflectable magnet-retaining spokes |
| USD1029714S1 (en) | 2021-08-19 | 2024-06-04 | Nidec Motor Corporation | Spoked rotor |
-
2018
- 2018-06-27 CN CN201821002705.7U patent/CN208445462U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539945A (en) * | 2018-06-27 | 2018-09-14 | 沈阳工业大学 | A kind of hub motor for electric automobile lightweight structure |
| US11791679B2 (en) | 2021-08-19 | 2023-10-17 | Nidec Motor Corporation | Spoked rotor having deflectable magnet-retaining spokes |
| USD1029714S1 (en) | 2021-08-19 | 2024-06-04 | Nidec Motor Corporation | Spoked rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 Termination date: 20210627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |