CN218920166U - In-wheel motor with magnetic ring - Google Patents
In-wheel motor with magnetic ring Download PDFInfo
- Publication number
- CN218920166U CN218920166U CN202223407052.XU CN202223407052U CN218920166U CN 218920166 U CN218920166 U CN 218920166U CN 202223407052 U CN202223407052 U CN 202223407052U CN 218920166 U CN218920166 U CN 218920166U
- Authority
- CN
- China
- Prior art keywords
- mounting
- ring
- hub body
- magnetic
- hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The application relates to a hub motor with a magnetic conduction ring, which comprises a hub, a motor shaft and a rotor core assembly; the hub comprises a hub body and a connecting side cover, wherein an installation cavity for installing a rotor core assembly is formed in the hub body, the rotor core assembly is arranged on a motor shaft, two ends of the motor shaft are respectively installed on the hub body and the connecting side cover, a magnetic conduction ring surrounding the rotor core assembly is arranged in the installation cavity, a plurality of fasteners are circumferentially arranged on the connecting side cover, and the fasteners penetrate through the magnetic conduction ring to be connected with the hub body. The fastener passes the magnetic conduction ring and connects on the wheel hub body in this application, fixes through the fastener between magnetic conduction ring and the wheel hub body, and when the fastener was locked and is connected the limit lid, also locked magnetic conduction ring and wheel hub body, prevents that the magnetic conduction ring from skidding on the wheel hub body to improve the installation stability of magnetic conduction ring on the wheel hub body.
Description
Technical Field
The application relates to the technical field of hub motors, in particular to a hub motor with a magnetic conduction ring.
Background
Electric vehicles are widely accepted in the market as a new energy driven transportation means with the characteristics of low noise and no pollution.
The present Chinese patent with publication number CN109412326A discloses an intelligent electric vehicle rear wheel hub motor, which comprises a hub, a motor shaft and a rotor core assembly; the hub comprises a hub body and a connecting cover plate, and the hub body and the connecting cover plate are installed and fixed through a fixing structure; the rotor core assembly is sleeved with a magnetic conduction ring, a magnetic shoe is arranged between the rotor core assembly and the magnetic conduction ring, and the rotor core assembly, the magnetic shoe and the magnetic conduction ring are positioned in an installation cavity of the hub body.
In the above technical scheme, the connecting cover plate is fixed on the hub body so as to fix the rotor core assembly, the magnetic shoe and the magnetic conduction ring in the installation cavity of the hub body, and the magnetic conduction ring is sleeved outside the rotor core assembly, because the hub body drives rotation through the rotor core assembly, the magnetic conduction ring also rotates along with the hub body, and the magnetic conduction ring and the hub body are attached and fixed only by virtue of friction force, the installation stability of the magnetic conduction ring is insufficient under the condition of a high-power hub motor, and therefore, certain improvement exists.
Disclosure of Invention
In order to improve the installation stability of the magnetic conduction ring, the application provides a hub motor with the magnetic conduction ring.
The application provides a wheel hub motor with lead magnetic ring adopts following technical scheme:
a hub motor with a magnetic conduction ring comprises a hub, a motor shaft and a rotor core assembly;
the hub comprises a hub body and a connecting side cover, wherein an installation cavity for installing the rotor core assembly is formed in the hub body, the rotor core assembly is arranged on a motor shaft, two ends of the motor shaft are respectively installed on the hub body and the connecting side cover, a magnetic conduction ring surrounding the rotor core assembly is arranged in the installation cavity, a plurality of fasteners are circumferentially arranged on the connecting side cover, and the fasteners penetrate through the magnetic conduction ring to be connected with the hub body.
Optionally, the hub body is formed outside the magnetic ring by casting or die casting.
Optionally, a groove is circumferentially formed in the outer wall of the magnetic conductive ring, a plurality of protruding points are arranged in the groove at intervals, and the protruding points are formed on the groove through electric welding.
Optionally, the magnetic ring is embedded in the installation cavity of the hub body by pressing.
Optionally, the hub body is provided with the mounting groove on the inner wall of mounting chamber, magnetic conduction ring inlays and is equipped with the collar with the notch butt of mounting groove in the border of magnetic conduction ring.
Optionally, a plurality of mounting holes are circumferentially formed in the end face of the hub body, and the fasteners penetrate through the mounting rings of the magnetic ring and are in threaded connection with the mounting holes.
Optionally, a first mounting half hole is formed in the groove wall of the mounting groove, a second mounting half hole is formed in the magnetic ring, and the first mounting half hole and the second mounting half hole are spliced to form a mounting hole for connecting the fastener.
Optionally, the second mounting half hole includes a first hole section and a second hole section, the first hole section is provided on the mounting ring, the second hole section is provided on the outer wall of the magnetic ring in a half hole shape, and the first hole section and the second hole section are mutually communicated.
Optionally, the end face of the hub body facing the connecting side cover is provided with a first inclined mounting surface surrounding the mounting groove, and the mounting ring is provided with a second inclined mounting surface matched with the first inclined mounting surface.
Optionally, the connecting side cover is circumferentially provided with a mounting convex edge abutting against the inner edge of the opening of the magnetic conduction ring.
In summary, the present application includes at least one of the following beneficial technical effects:
the fastener passes the magnetic conduction ring and connects on the wheel hub body in this application, fixes through the fastener between magnetic conduction ring and the wheel hub body, and when the fastener was locked and is connected the limit lid, also locked magnetic conduction ring and wheel hub body, prevents that the magnetic conduction ring from skidding on the wheel hub body to improve the installation stability of magnetic conduction ring on the wheel hub body.
Drawings
Fig. 1 is an overall schematic view of an in-wheel motor.
Fig. 2 is a schematic cross-sectional view of the in-wheel motor.
Fig. 3 is an exploded schematic view of the in-wheel motor.
Fig. 4 is an enlarged schematic view of the portion a in fig. 3.
Fig. 5 is a schematic view of the structure of the bump inside the in-wheel motor.
Reference numerals illustrate: 1. a hub; 101. a hub body; 102. connecting a side cover; 103. a mounting chamber; 104. a shaft fixing port; 105. a tire retainer ring; 2. a motor shaft; 3. a rotor core assembly; 4. a magnetic conductive ring; 5. a fastener; 6. mounting convex edges; 7. a mounting groove; 8. a mounting ring; 9. a first oblique mounting surface; 10. a second inclined mounting surface; 11. a first mounting half hole; 12. a second mounting half hole; 121. a first bore section; 122. a second bore section; 13. a bump; 14. a groove.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
An in-wheel motor with a magnetic conduction ring, referring to fig. 1, comprises a hub 1, a motor shaft 2 and a rotor core assembly 3.
Referring to fig. 1 and 2, the hub 1 includes a hub body 101 and a connection side cover 102, the hub body 101 having a substantially cylindrical structure, and a mounting chamber 103 for mounting the rotor core assembly 3 is formed inside the hub body 101. One side of the hub body 101 is provided with an installation opening matched with the connecting side cover 102, the middle position of the other side of the hub body 101 is provided with a shaft fixing opening 104, and the outer circular surface of the hub body 101 is provided with a tire fixing ring 105 for installing a tire.
The rotor core assembly 3 is fixed on the motor shaft 2, one end of the motor shaft 2 is installed in the shaft fixing port 104 of the hub body 101 through a bearing, and the other end of the motor shaft 2 is installed in the center of the connecting side cover 102 through a bearing. Wherein, be provided with in the installation cavity 103 around the magnetic conduction ring 4 outside rotor core subassembly 3, the outer wall laminating of magnetic conduction ring 4 is on the inner wall of installation cavity 103, and magnetic conduction ring 4 wholly is cylindric setting, and the axial cavity and the both ends opening setting of magnetic conduction ring 4 are provided with a plurality of magnetic shoes between magnetic conduction ring 4 and rotor core subassembly 3, and a plurality of magnetic shoes are fixed on the inner wall of magnetic conduction ring 4.
The following describes a manner of mounting the magnetically conductive ring 4 in the mounting chamber 103.
In one embodiment, the magnetic ring 4 has been prefabricated in a ring shape, and the magnetic ring 4 is press fit into the mounting cavity 103 of the hub body 101 by a hydraulic tool.
In another embodiment, the hub body 101 is formed outside the magnetic ring 4 by casting or die casting, so that the magnetic ring 4 is located in the installation cavity 103 of the hub body 101, and since the melting point of the material selected for the magnetic ring 4 is higher than that of the material selected for the hub body 101, the hub body 101 can only be cast or die-cast outside the magnetic ring 4, but the magnetic ring 4 cannot be cast or die-cast in the installation cavity 103 of the hub body 101.
In order to improve the connection stability between the magnetic conducting ring 4 and the hub body 101, before the hub body 101 is cast or die-cast outside the magnetic conducting ring 4, a groove 14 needs to be circumferentially formed in the outer wall of the magnetic conducting ring 4 in advance, the groove 14 can be provided with one circle, the outer wall of the magnetic conducting ring 4 can also be provided with a plurality of circles, and the number of circles of the groove 14 can be selected according to practical situations. Wherein, a plurality of protruding points 13 are arranged in the groove 14 at intervals, the protruding points 13 are formed on the groove 14 by electric welding, and the structure and the installation position of the protruding points 13 are shown in the installation figure 5.
Through the setting of recess 14, when hub body 101 casting or die-casting outside magnetic ring 4, can form better axial fixation effect between hub body 101 and the magnetic ring 4 to and through the setting of bump 13 in the recess 14, can form better circumference fixed effect between hub body 101 and the magnetic ring 4.
A plurality of fasteners 5 are circumferentially arranged on the connecting side cover 102, and the fasteners 5 penetrate through the magnetic conducting ring 4 to be connected to the hub body 101, wherein an installation convex edge 6 which is abutted to the inner edge of the opening of the magnetic conducting ring 4 is circumferentially arranged on the connecting side cover 102. After the connection side cover 102 is fixed on the mounting opening of the hub body 101, the connection side cover 102 encapsulates the magnetic ring 4, the magnetic shoe and the rotor core assembly 3 in the mounting cavity 103 of the hub body 101.
Referring to fig. 3 and 4, the hub body 101 is provided with a mounting groove 7 on the inner wall of the mounting chamber 103, the magnetic ring 4 is positioned in the mounting groove 7, and the edge of the magnetic ring 4 is provided with a mounting ring 8 abutting against the notch of the mounting groove 7.
In one embodiment, the end surface of the hub body 101 is circumferentially provided with a plurality of mounting holes, and the fastener 5 passes through the mounting ring 8 of the magnetic conductive ring 4 and is then screwed into the mounting holes.
In another embodiment, a first mounting half hole 11 is formed in the wall of the mounting groove 7, a second mounting half hole 12 is formed in the magnetic conducting ring 4, and the first mounting half hole 11 and the second mounting half hole 12 are spliced to form a mounting hole for connecting the fastener 5. In this embodiment, the fastener 5 is a bolt, and the outer wall surface of the bolt is provided with external threads, so that the mounting hole is provided with internal threads which are matched with the external threads of the fastener 5.
It should be noted that the second mounting half-hole 12 includes a first hole section 121 and a second hole section 122, the first hole section 121 is opened on the mounting ring 8, the second hole section 122 is opened on the outer wall of the magnetic conductive ring 4 in a half-hole shape, and the first hole section 121 and the second hole section 122 are mutually communicated.
The mode that this application formed the mounting hole that supplies fastener 5 to connect through first installation half hole 11 and second installation half hole 12 concatenation realizes on the one hand that fastener 5 pin and connects side cover 102, also pin magnetic ring 4 and wheel hub body 101, prevents that magnetic ring 4 from skidding on wheel hub body 101, on the other hand also can reduce the wall thickness of wheel hub body 101 and magnetic ring 4 to reach the purpose that alleviates wheel hub 1 motor weight, also corresponding manufacturing cost has been reduced.
Referring to fig. 3, the hub body 101 is provided with a first inclined mounting surface 9 surrounding the mounting groove 7 on an end surface facing the connection side cover 102, and the mounting ring 8 is provided with a second inclined mounting surface 10 that mates with the first inclined mounting surface 9. Through the arrangement of the first inclined mounting surface 9 and the second inclined mounting surface 10, the purpose of guiding the installation of the magnetic conduction ring 4 into the mounting groove 7 is achieved, the convenience of the installation of the magnetic conduction ring 4 is improved, and the first mounting half hole 11 and the second mounting half hole 12 are convenient to form mounting holes in alignment when being locked by the fastener 5.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The hub motor with the magnetic conduction ring is characterized by comprising a hub (1), a motor shaft (2) and a rotor core assembly (3);
the hub (1) comprises a hub body (101) and a connecting side cover (102), a mounting cavity (103) for mounting the rotor core assembly (3) is formed in the hub body (101), the rotor core assembly (3) is arranged on the motor shaft (2), two ends of the motor shaft (2) are respectively mounted on the hub body (101) and the connecting side cover (102), a magnetic ring (4) surrounding the rotor core assembly (3) is arranged in the mounting cavity (103), a plurality of fasteners (5) are circumferentially arranged on the connecting side cover (102), and the fasteners (5) penetrate through the magnetic ring (4) to be connected with the hub body (101).
2. A hub motor with a magnetic conducting ring according to claim 1, characterized in that the hub body (101) is molded outside the magnetic conducting ring (4) by casting or die casting.
3. The hub motor with the magnetic conducting ring according to claim 2, wherein grooves (14) are circumferentially formed in the outer wall of the magnetic conducting ring (4), a plurality of protruding points (13) are arranged in the grooves at intervals, and the protruding points (13) are formed in the grooves (14) through electric welding.
4. A hub motor with a magnetically conductive ring according to claim 1, characterized in that the magnetically conductive ring (4) is press fit into the mounting cavity (103) of the hub body (101).
5. The hub motor with the magnetic conducting ring according to claim 1, characterized in that the hub body (101) is provided with a mounting groove (7) on the inner wall of the mounting cavity (103), the magnetic conducting ring (4) is located in the mounting groove (7), and the edge of the magnetic conducting ring (4) is provided with a mounting ring (8) which is abutted with the notch of the mounting groove (7).
6. The hub motor with the magnetic conducting ring according to claim 5, characterized in that a plurality of mounting holes are circumferentially arranged on the end face of the hub body (101), and the fasteners (5) penetrate through the mounting rings (8) of the magnetic conducting ring (4) and are connected in the mounting holes in a threaded mode.
7. The hub motor with the magnetic conduction ring according to claim 5, wherein a first mounting half hole (11) is formed in a groove wall of the mounting groove (7), a second mounting half hole (12) is formed in the magnetic conduction ring (4), and the first mounting half hole (11) and the second mounting half hole (12) are spliced to form a mounting hole for connecting the fastener (5).
8. The wheel hub motor with a magnetic conduction ring according to claim 7, characterized in that the second mounting half-hole (12) comprises a first hole section (121) and a second hole section (122), the first hole section (121) is arranged on the mounting ring (8), the second hole section (122) is arranged on the outer wall of the magnetic conduction ring (4) in a half-hole shape, and the first hole section (121) and the second hole section (122) are mutually communicated.
9. A hub motor with a magnetic conducting ring according to claim 5, characterized in that the end surface of the hub body (101) facing the connecting side cover (102) is provided with a first oblique mounting surface (9) surrounding the mounting groove (7), and the mounting ring (8) is provided with a second oblique mounting surface (10) cooperating with the first oblique mounting surface (9).
10. The hub motor with the magnetic conduction ring according to claim 1, wherein the connecting side cover (102) is circumferentially provided with a mounting convex edge (6) which is abutted with the inner edge of the opening of the magnetic conduction ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223407052.XU CN218920166U (en) | 2022-12-19 | 2022-12-19 | In-wheel motor with magnetic ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223407052.XU CN218920166U (en) | 2022-12-19 | 2022-12-19 | In-wheel motor with magnetic ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218920166U true CN218920166U (en) | 2023-04-25 |
Family
ID=86012693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223407052.XU Active CN218920166U (en) | 2022-12-19 | 2022-12-19 | In-wheel motor with magnetic ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218920166U (en) |
-
2022
- 2022-12-19 CN CN202223407052.XU patent/CN218920166U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7121367B2 (en) | Installation structure for electric rotating machine in motor vehicle | |
| US10536051B2 (en) | Stator assembly for wheel motor and stub axle support therefor | |
| CN210176277U (en) | Traction machine | |
| CN210176279U (en) | Improved traction machine | |
| WO2017012574A1 (en) | Lightweight hub made of aluminum-steel composite materials | |
| CN216240917U (en) | Tooth's socket structure and silicon oil clutch of silicon oil clutch | |
| JP2002503308A (en) | Pumping unit | |
| CN218920166U (en) | In-wheel motor with magnetic ring | |
| CN113141074B (en) | Rotor structure of permanent magnet synchronous motor and manufacturing method thereof | |
| CN213322675U (en) | Mounting structure and car of car drive shaft | |
| CN219086908U (en) | Hub motor | |
| US6781267B2 (en) | Motor for a power tool | |
| JP3739522B2 (en) | Magnet generator rotor | |
| CN109944922B (en) | Hot sleeve bolt fastening type crankshaft power output assembly | |
| CN210454324U (en) | Integrated electric Mecanum wheel | |
| CN201042984Y (en) | Servant brake with lock for electric motor cycle | |
| CN211141247U (en) | Traction machine | |
| CN210053299U (en) | Rotor integrated gear ring | |
| CN217545748U (en) | Motor housing, motor and wheel subassembly | |
| JP3272224B2 (en) | Bicycle hub dynamo | |
| CN212499711U (en) | Wheel hub for aerial work platform and aerial work platform comprising wheel hub | |
| CN215041851U (en) | Multi-mode reduced front wheel hub | |
| CN218161987U (en) | Electric bicycle permanent magnet brushless direct current wheel hub motor disjunctor wheel lid structure | |
| CN220172943U (en) | Hub motor for electric vehicle | |
| CN219980558U (en) | Range extender generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |