CN219505773U - Novel rear iron hub of light electric vehicle - Google Patents
Novel rear iron hub of light electric vehicle Download PDFInfo
- Publication number
- CN219505773U CN219505773U CN202320562877.4U CN202320562877U CN219505773U CN 219505773 U CN219505773 U CN 219505773U CN 202320562877 U CN202320562877 U CN 202320562877U CN 219505773 U CN219505773 U CN 219505773U
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- electric vehicle
- ring
- rear iron
- magnetic conduction
- side support
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The utility model belongs to the technical field of electric vehicles, in particular to a novel rear iron wheel hub of a light electric vehicle, which comprises a wheel rim, wherein a magnetic conduction ring is arranged in the wheel rim, one side of the magnetic conduction ring is provided with a side support cover, the other side of the magnetic conduction ring is provided with an outer turnover part, and a plurality of inner studs are arranged on the outer turnover part, so that screw holes are not required to be drilled on the end face of the magnetic conduction ring like a traditional wheel hub, the magnetic conduction ring can be thinner, the weight of the wheel hub is reduced, an annular flat plate part and an annular inclined plate part designed for the side support cover of the novel rear iron wheel hub of the light electric vehicle can enable a main body of the side support cover to form a staggered structure, the radial bearing capacity is improved, and the designed first convex ribs and second convex ribs can also strengthen the structural strength.
Description
Technical Field
The utility model belongs to the technical field of electric vehicles, and particularly relates to a novel rear iron hub of a light electric vehicle.
Background
The rear iron wheel hub of the electric vehicle is provided with the magnetic conduction ring so as to improve the main magnetic flux of the wheel hub motor, the screw hole of the installation side cover is required to be drilled on the end face of the current magnetic conduction ring, the thickness of the magnetic conduction ring is required to be more than 6 millimeters so as to ensure that the size of the screw hole on the end face meets the requirements, and the weight of the rear iron wheel hub is heavy, so that the whole weight and cruising ability of the electric vehicle are greatly influenced. For example, chinese patent publication No. CN211281367U describes a hub motor and an electric vehicle, in which the thickness of a magnetically conductive ring inside a rim of the hub motor is relatively large, and the weight of a rear wheel is increased.
Disclosure of Invention
The utility model aims to provide a novel light electric vehicle rear iron wheel hub, which solves the technical problems that in the prior art, the electric vehicle motor wheel hub is not light and is not beneficial to the power saving of the electric vehicle.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the novel light electric vehicle rear iron wheel hub comprises a wheel rim, wherein a magnetic conduction ring is arranged in the wheel rim, one side of the magnetic conduction ring is provided with a side support cover, the other side of the magnetic conduction ring is provided with an outer turnover part, and a plurality of inner studs are arranged on the outer turnover part; the side support cover comprises a bearing seat mounting hole sleeve, an annular flat plate part and an annular inclined plate part from the middle to the periphery, wherein first convex ribs are circumferentially distributed on the annular flat plate part, second convex ribs are circumferentially distributed on the annular inclined plate part, and the first convex ribs and the second convex ribs are protruded in opposite directions.
Preferably, an annular transition portion is provided between the annular flat plate portion and the annular inclined plate portion such that the annular flat plate portion is concave inward in the annular inclined plate portion.
Preferably, a plurality of heightening areas are arranged on the outer turnover part of the magnetic conduction ring, and the inner studs are arranged in the heightening areas.
Preferably, the inner stud extends rearward on the outer fold.
Preferably, the side support cover further comprises a ring sleeve part positioned at the periphery of the annular inclined plate part, and the ring sleeve part is connected with the magnetic conduction ring.
Preferably, the wall thickness of the side support cover is smaller than that of the magnetic conductive ring.
Preferably, the magnetic ring, the side support cover and the outer turnover part are integrally formed by stamping and stretching of a steel ring.
Preferably, the thickness of the magnetic ring is 2.5 mm, and the thickness of the ring at the bottom of the rim is 2 mm.
Preferably, the bearing seat is arranged in the bearing seat mounting hole sleeve.
Preferably, the first bead and the second bead are protruded in opposite directions.
Compared with the prior art, the utility model has the beneficial effects that: 1. the novel light electric vehicle rear iron wheel hub is provided with the magnetic guide ring in the wheel rim, one side of the magnetic guide ring is provided with the side support cover, the other side of the magnetic guide ring is provided with the outer turnover part, and the outer turnover part is provided with a plurality of inner studs, so that screw holes do not need to be drilled on the end face of the magnetic guide ring like a traditional wheel hub, the magnetic guide ring can be thinner, and the weight of the wheel hub can be reduced. 2. The annular flat plate part and the annular inclined plate part of the side support cover design of the novel rear iron wheel hub of the light electric vehicle can enable the side support cover main body to form a staggered structure, so that the radial bearing capacity is improved, the first protruding ribs and the second protruding ribs of the design can also strengthen the structural strength, and the side support cover can be made thinner on the premise that the wheel hub meets the required bearing capacity, and the weight of the wheel hub is reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
fig. 1 is a schematic perspective view of an embodiment of a rear iron hub of a light electric vehicle.
Fig. 2 is a partial cross-sectional view of a side support cover in one embodiment of the rear iron hub of the present lightweight electric vehicle.
Fig. 3 is a partial cross-sectional view of an embodiment of the rear iron hub of the present novel lightweight electric vehicle.
Fig. 4 is a cross-sectional view of an embodiment of the rear iron hub of the present lightweight electric vehicle.
In the drawings, each reference numeral is intended to: rim 1, magnetic ring 2, outer turnover part 3, inner stud 31, heightening area 32, side supporting cover 4, bearing seat mounting hole sleeve 41, inner flange 411, annular flat plate part 42, first convex rib 421, annular inclined plate part 43, second convex rib 431, annular transition part 44, annular sleeve part 45 and bearing seat 5.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In one embodiment, a novel rear iron wheel hub of a light electric vehicle is provided, as shown in fig. 1, the novel rear iron wheel hub of the light electric vehicle comprises a wheel rim 1, the wheel rim 1 is a wheel rim for installing a tire, a magnetic ring 2 is arranged in the wheel rim 1, the magnetic ring 2 has the function of magnetic conduction, the main magnetic flux of a motor coil is improved, one side of the magnetic ring 2 is provided with a side support cover 4, the other side is provided with an outer turnover part 3, the outer turnover part 3 is used for being connected with a side support cover (not shown in the figure) of the other side of the wheel hub, the inside of the side support covers of the two sides of the wheel hub is provided with parts such as the motor coil, and the middle part of the side support covers of the two sides of the wheel hub is used for installing a motor shaft.
As shown in fig. 1, a plurality of inner studs 31 are arranged on the outer turnover part 3 of the magnetic conduction ring 2, the inner studs 31 are a connecting column provided with screw holes and are used for installing bolts to connect with a side support cover on the other side of the hub, and due to the design of the outer turnover part 3, the arrangement of the inner studs 31 is convenient, screw holes are not required to be drilled on the end face of the magnetic conduction ring like a traditional hub, so that the magnetic conduction ring 2 in the embodiment can be thinner, and the weight of the hub is reduced.
As shown in fig. 1 and 2, the side support cover 4 of the rear iron hub of the novel light electric vehicle comprises a middle bearing seat mounting hole sleeve 41, wherein the bearing seat mounting hole sleeve 41 is in a ring sleeve shape, an inner flange 411 for blocking a bearing seat is arranged on the outer side of the bearing seat mounting hole sleeve 41, the bearing seat is arranged in the bearing seat mounting hole sleeve 41, and a bearing is arranged in the bearing seat to support an axle; an annular flat plate portion 42 is provided radially outward of the bearing housing mounting hole bush 41, the annular flat plate portion 42 being a plate body in a vertical state, and an annular inclined plate portion 43 is provided radially outward of the annular flat plate portion 42, the annular inclined plate portion 43 being inclined inward with respect to the annular flat plate portion 42. Further, first ribs 421 are circumferentially distributed on the annular flat plate portion 42, and second ribs 431 are circumferentially distributed on the annular inclined plate portion 43.
The annular flat plate part 42 and the annular inclined plate part 43 are designed to enable the main body of the side support cover 4 to form a staggered structure, so that the radial bearing capacity is improved, and the first convex ribs 421 and the second convex ribs 431 are designed to strengthen the structural strength, so that the side support cover 4 can be thinner on the premise that the hub meets the required bearing capacity, and the weight of the hub is reduced.
Further, the first ribs 421 provided on the annular flat plate portion 42 are protruded outwards, the second ribs 431 provided on the annular inclined plate portion 43 are protruded inwards, and the first ribs 421 and the second ribs 431 are protruded in opposite directions, so that the main structure of the side support cover 4 has a certain undulation in the axial direction, the side support cover 4 is prevented from being thin, and the hub strength can be improved by the arrangement.
Further, as shown in fig. 1, in one embodiment, a plurality of raised areas 32 are provided on the outer turnup portion 3 of the magnetic ring 2, and the inner studs 31 are provided on the raised areas 32, so that the height of the outer turnup portion 3 along the radial direction can be reduced, and the weight of the outer turnup portion 3 can be reduced. Preferably, the inner stud 31 extends rearward on the outer fold 3, and the length of the inner stud 31 is greater than the thickness of the outer fold 3, which is advantageous for increasing the torque of screwing the bolt into the inner stud 31.
Further, as shown in fig. 1 and 2, in one embodiment, an annular transition portion 44 is provided between the annular flat plate portion 42 and the annular inclined plate portion 43, and upper and lower portions of the annular transition portion 44 have a certain radian respectively, and smoothly transition to the annular inclined plate portion 43 and the annular flat plate portion 42, so that the annular flat plate portion 42 is concave inward in the annular inclined plate portion 43, and thus the degree of undulation of the side support cover 4 in the axial direction can be improved, and the strength of the side support cover 4 can be improved.
As shown in fig. 4, in one embodiment, a bearing housing 5 is provided in a housing mounting hole sleeve of the side support cover 4, and a bearing can be directly mounted in the bearing housing 5.
Further, as shown in fig. 2, in one embodiment, the side supporting cover 4 further includes a ring sleeve portion 45 located at the outer periphery of the annular inclined plate portion 43, the outer periphery of the annular inclined plate portion 43 transitions to the ring sleeve portion 45 through an arc portion, the ring sleeve portion 45 is connected with the magnetic conductive ring 2, and the side supporting cover 4 and the magnetic conductive ring 2 may be integrally formed or may be welded together after being separately processed.
For example, as shown in fig. 3, the magnetic ring 2, the side support cover 4 and the outer turnover part 3 may be integrally formed by punching and stretching a steel ring.
Specifically, in one embodiment, the steel ring is made of steel strip with the thickness of 2.5 mm, and the processing technology is as follows: (1) Cutting off and rolling the steel belt according to the size of the manufactured product, and then performing argon arc welding to form a steel ring; (2) The roundness of the steel ring is expanded by adopting a hydraulic press, then the steel ring is punched into a horn mouth shape (namely, the shape of an integral structure formed by the magnetic conduction ring 2, the side support cover 4 and the outer turnover part 3) by adopting a punch, in the punching process, the side support cover 4 is punched and stretched to be formed, then the outer turnover part 3 is punched and formed on the other side of the steel ring, and then the inner stud 31 is punched and stretched by adopting the hydraulic press. The depth of the inner stud 31 formed by punching on the outer turnover part 3 on the side surface of the magnetic conduction ring 2 can reach twice the thickness of 2.5 mm of the material (namely, the inner stud 31 has 5 mm depth), so that the torque supported by the inner stud 31 can reach more than 9.7N.M, and the standard requirement of 8-10N.M is met. The rim 1 is formed by stamping a steel plate with the thickness of 2.0 mm, the width of a ring 11 at the bottom of the rim 1 is 20 mm, after the ring 11 is matched and welded with a magnetic conduction ring 2 with the thickness of 2.5 mm, the thickness of the ring 11 and the magnetic conduction ring 2 of the rim 1 reaches 4.5 mm, the ring 11 and the magnetic conduction ring 2 are actual magnetic conduction ring thicknesses, and the thicknesses meet the installation requirement of the electric vehicle standard on the magnetic conduction ring thickness of more than 3.6 mm.
The novel light electric vehicle rear iron wheel hub adopts the stamping forming magnetic conduction ring 2, the outer turnover part 3 is arranged on the side surface of the magnetic conduction ring 2, the inner stud 31 is processed on the outer turnover part 3 instead of processing screw holes on the end surface of the magnetic conduction ring 2, so that the magnetic conduction ring 2 can be thinner, the thickness of the magnetic conduction ring 2 is only 2.5 mm, the weight of the wheel hub is much lighter, the material cost, the weight of the wheel hub and the whole electric vehicle weight are reduced, and the cruising ability of the electric vehicle is improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a novel light-duty electric motor car back iron wheel hub, includes the rim, be equipped with the magnetic conduction ring in the rim, one side of magnetic conduction ring is equipped with side support lid, its characterized in that: an outer turnover part is arranged on the other side of the magnetic conduction ring, and a plurality of inner studs are arranged on the outer turnover part; the side support cover comprises a bearing seat mounting hole sleeve, an annular flat plate part and an annular inclined plate part from the middle to the periphery, wherein first convex ribs are circumferentially distributed on the annular flat plate part, and second convex ribs are circumferentially distributed on the annular inclined plate part.
2. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: an annular transition portion is provided between the annular flat plate portion and the annular inclined plate portion such that the annular flat plate portion is concave inward in the annular inclined plate portion.
3. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the outer turnover part of the magnetic ring is provided with a plurality of heightening areas, and the inner studs are arranged in the heightening areas.
4. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the inner stud extends rearward on the outer fold.
5. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the side support cover further comprises a ring sleeve part positioned at the periphery of the annular inclined plate part, and the ring sleeve part is connected with the magnetic conduction ring.
6. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the wall thickness of the side support cover is smaller than that of the magnetic conduction ring.
7. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the magnetic ring, the side support cover and the outer turnover part are integrally formed by stamping and stretching of a steel ring.
8. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the thickness of the magnetic ring is 2.5 mm, and the thickness of the ring at the bottom of the rim is 2 mm.
9. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the bearing seat is arranged in the bearing seat mounting hole sleeve.
10. The novel rear iron hub of a lightweight electric vehicle as set forth in claim 1, wherein: the first ribs and the second ribs protrude in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320562877.4U CN219505773U (en) | 2023-03-21 | 2023-03-21 | Novel rear iron hub of light electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320562877.4U CN219505773U (en) | 2023-03-21 | 2023-03-21 | Novel rear iron hub of light electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219505773U true CN219505773U (en) | 2023-08-11 |
Family
ID=87531175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320562877.4U Active CN219505773U (en) | 2023-03-21 | 2023-03-21 | Novel rear iron hub of light electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219505773U (en) |
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2023
- 2023-03-21 CN CN202320562877.4U patent/CN219505773U/en active Active
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