CN212115061U - Driving motor of electric vehicle - Google Patents
Driving motor of electric vehicle Download PDFInfo
- Publication number
- CN212115061U CN212115061U CN202021272501.2U CN202021272501U CN212115061U CN 212115061 U CN212115061 U CN 212115061U CN 202021272501 U CN202021272501 U CN 202021272501U CN 212115061 U CN212115061 U CN 212115061U
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- CN
- China
- Prior art keywords
- mounting seat
- gear
- shell
- bearing
- sealing ring
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- 239000010687 lubricating oil Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
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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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- General Details Of Gearings (AREA)
Abstract
A driving motor of an electric vehicle comprises a shell, a first supporting shaft, a stator assembly, a rotor assembly, a sun gear, a planetary gear, an inner gear ring, a first mounting seat, a second supporting shaft, a first sealing ring and a second sealing ring; the shell comprises a shell base and a side cover; one end of the first support shaft, which is positioned in the shell, is connected with a bearing frame, and a first sealing ring is arranged between the outer side of the bearing frame and the side cover; the first mounting seat is fixedly sleeved on the bearing frame, and the stator assembly is fixedly arranged on one side of the first mounting seat, which is far away from the side cover; the rotor component is fixedly sleeved on the sun wheel; the inner side of the planetary gear, which faces the sun gear, is meshed with the sun gear, the outer side of the planetary gear, which is far away from the sun gear, is meshed with an inner gear ring, and the inner gear ring is fixedly connected with the base of the shell; the second supporting shaft is fixedly connected with the second mounting seat; the second sealing ring is arranged between the second mounting seat and the shell base; the shell is filled with heat dissipation lubricating oil. The volume is small, the weight is light, no transmission mechanism is arranged, and the reliability is improved.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially an electric vehicle drive motor.
Background
The existing electric vehicle has the following driving modes: a motor drives the driving gear to rotate, and the driving gear drives the driven wheel which is coaxial with the wheel to rotate through a chain. Therefore, the driving and transmission part has larger volume and heavier weight of the whole machine, and the gear and the chain are easy to break down.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electric vehicle driving motor that volume is less, weight is lighter, no drive mechanism, reliability improve to solve above-mentioned problem.
A driving motor of an electric vehicle comprises a shell, a first supporting shaft, a stator assembly, a rotor assembly, a sun gear, a planetary gear, an inner gear ring, a first mounting seat, a second supporting shaft, a first sealing ring and a second sealing ring; the shell comprises a shell base and a side cover which is oppositely connected with the shell base; a first supporting opening is formed in the middle of the side cover, a first supporting shaft is rotatably positioned at the first supporting opening, one end of the first supporting shaft, which is positioned in the shell, is connected with a bearing frame, and a first sealing ring is arranged between the outer side of the bearing frame and the side cover; a first bearing is arranged in the bearing frame, and a first end of the sun gear is rotatably supported by the first bearing; the first mounting seat is fixedly sleeved on the bearing frame, and the stator assembly is fixedly arranged on one side of the first mounting seat, which is far away from the side cover, and is close to the circumferential edge; the rotor component is fixedly sleeved on the sun wheel; the inner side of the planetary gear, which faces the sun gear, is meshed with the sun gear, the outer side of the planetary gear, which is far away from the sun gear, is meshed with an inner gear ring, and the inner gear ring is fixedly connected with the base of the shell; a spoke connecting convex block is arranged on the outer side of the periphery of the shell base, and a connecting hole is formed in the spoke connecting convex block; a second supporting opening is formed in the middle of one side, far away from the side cover, of the shell base, a second mounting seat is rotatably located at the second supporting opening, and a second supporting shaft is fixedly connected with the second mounting seat; a second bearing is arranged on the inner side of the second mounting seat, and a second end of the sun gear is rotatably supported by the second bearing; the second sealing ring is arranged between the second mounting seat and the shell base; the shell is filled with heat dissipation lubricating oil.
Further, the stator assembly comprises magnetic steel and a stator coil wound outside the magnetic steel.
Further, the rotor assembly comprises a rotor disc fixedly sleeved on the sun wheel and a permanent magnet arranged on the circumferential edge of the rotor disc, the outer diameter of the rotor disc is smaller than the distance from the inner side of the stator assembly facing the sun wheel to the axis of the sun wheel, and the permanent magnet is positioned on the inner side of the magnetic steel.
Furthermore, a gear rotating shaft penetrates through the middle of the planetary gear, and a rotating bearing is arranged between the gear rotating shaft and the planetary gear.
The stator assembly and the rotor assembly are arranged on the side cover, and the side cover is provided with a first mounting seat; a third sealing ring is arranged between the isolation block and the gear rotating shaft; and heat dissipation lubricating oil is injected into the space among the shell base, the second mounting seat, the rotating bearing and the isolation block.
Furthermore, a fourth sealing ring is arranged between the rotating bearing and the rotor disc, and heat dissipation lubricating oil is injected into a space between the second mounting seat, the sun gear, the rotating bearing and the rotor disc.
Compared with the prior art, the driving motor of the electric vehicle comprises a shell, a first supporting shaft, a stator assembly, a rotor assembly, a sun gear, a planetary gear, an inner gear ring, a first mounting seat, a second supporting shaft, a first sealing ring and a second sealing ring; the shell comprises a shell base and a side cover which is oppositely connected with the shell base; a first supporting opening is formed in the middle of the side cover, a first supporting shaft is rotatably positioned at the first supporting opening, one end of the first supporting shaft, which is positioned in the shell, is connected with a bearing frame, and a first sealing ring is arranged between the outer side of the bearing frame and the side cover; a first bearing is arranged in the bearing frame, and a first end of the sun gear is rotatably supported by the first bearing; the first mounting seat is fixedly sleeved on the bearing frame, and the stator assembly is fixedly arranged on one side of the first mounting seat, which is far away from the side cover, and is close to the circumferential edge; the rotor component is fixedly sleeved on the sun wheel; the inner side of the planetary gear, which faces the sun gear, is meshed with the sun gear, the outer side of the planetary gear, which is far away from the sun gear, is meshed with an inner gear ring, and the inner gear ring is fixedly connected with the base of the shell; a spoke connecting convex block is arranged on the outer side of the periphery of the shell base, and a connecting hole is formed in the spoke connecting convex block; a second supporting opening is formed in the middle of one side, far away from the side cover, of the shell base, a second mounting seat is rotatably located at the second supporting opening, and a second supporting shaft is fixedly connected with the second mounting seat; a second bearing is arranged on the inner side of the second mounting seat, and a second end of the sun gear is rotatably supported by the second bearing; the second sealing ring is arranged between the second mounting seat and the shell base; the shell is filled with heat dissipation lubricating oil. The volume is small, the weight is light, no transmission mechanism is arranged, and the reliability is improved.
Drawings
Embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic partial perspective view of a driving motor of an electric vehicle according to the present invention.
Detailed Description
The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides a driving motor for an electric vehicle, which includes a housing 10, a first supporting shaft 20, a stator assembly 30, a rotor assembly 40, a sun gear 50, a planetary gear 60, an inner gear ring 70, a first mounting seat 81, a second mounting seat 82, a second supporting shaft 22, a first sealing ring 91, a second sealing ring 92, and a spacer 93.
The housing 10 includes a housing base 11 and a side cover 12 connected to the housing base 11.
First support opening has been seted up at the middle part of side cap 12, and first support shaft 20 is located first support opening department with rotating, and the one end that first support shaft 20 is located casing 10 is connected with bearing bracket 21, and first sealing washer 91 sets up between the outside of bearing bracket 21 and side cap 12.
A first bearing is provided in the bearing frame 21, and a first end of the sun gear 50 is rotatably supported by the first bearing.
The middle part of the first mounting seat 81 is provided with a mounting opening, and the first mounting seat 81 is fixedly sleeved on the outer side of the bearing frame 21 through the mounting opening.
The stator assembly 30 is fixedly disposed at a position close to the circumferential edge on a side of the first mounting seat 81 away from the side cover 12.
The stator assembly 30 includes a magnetic steel 31 and a stator coil 32 wound outside the magnetic steel 31.
The rotor assembly 40 includes a rotor disc 41 fixed to the sun gear 50 and a permanent magnet 42 mounted on a circumferential edge of the rotor disc 41, an outer diameter of the rotor disc 41 is smaller than a distance from an inner side of the stator assembly 30 facing the sun gear 50 to an axis of the sun gear 50, and the permanent magnet 42 is located on an inner side of the magnetic steel 31.
The planetary gear 60 is engaged with the sun gear 50 toward the inner side of the sun gear 50, and is engaged with the ring gear 70 away from the outer side of the sun gear 50, and the ring gear 70 is fixedly connected with the housing base 11.
The outer side of the circumferential direction of the shell base 11 is provided with a spoke connecting convex block 111 in a protruding mode, and the spoke connecting convex block 111 is provided with a connecting hole for being connected with a wheel spoke of an electric vehicle.
The middle part of one side of the housing base 11 far away from the side cover 12 is provided with a second supporting opening, the second mounting seat 82 is rotatably located at the second supporting opening, and the second supporting shaft 22 is fixedly connected with the second mounting seat 82. A second bearing is provided on the inside of the second mount 82, and a second end of the sun gear 50 is rotatably supported by the second bearing.
The first support shaft 20 and the second support shaft 22 are connected to a wheel fork of the electric vehicle.
The second seal ring 92 is disposed between the second mounting seat 82 and the housing base 11.
A gear rotating shaft 61 is arranged in the middle of the planetary gear 60 in a penetrating mode, the planetary gear 60 rotates around the gear rotating shaft 61, and a rotating bearing is arranged between the gear rotating shaft 61 and the planetary gear 60.
The spacer block 93 is located on a side of the stator assembly 30 and the rotor assembly 40 away from the side cover 12 and connected to the first mounting seat 81. The space between the housing base 11, the second mounting seat 82, the rotary bearing and the spacer 93 is filled with heat dissipation lubricant, and the heat dissipation lubricant can lubricate and dissipate heat of the planetary gear 60 and the ring gear 70. A third sealing ring 94 is arranged between the isolation block 93 and the gear rotating shaft 61.
The spacer 93 serves to prevent heat-dissipating lubricating oil from entering the stator assembly 30.
A fourth seal ring 95 is provided between the rotary bearing and the rotor disc 41. The space between the second mounting seat 82, the sun gear 50, the rotary bearing, and the rotor disk 41 is filled with heat dissipation lubricant, and the heat dissipation lubricant can lubricate and dissipate heat of the planetary gear 60 and the sun gear 50.
The stator coil 32 of the stator assembly 30 is externally provided with a sealing sleeve so that the stator coil 32 is not short-circuited even if heat-dissipating lubricating oil is introduced into the stator assembly 30. The heat-dissipating lubricating oil can be located anywhere within the housing 10 or fill the gaps within the housing 10.
Compared with the prior art, the electric vehicle driving motor of the utility model comprises a shell 10, a first supporting shaft 20, a stator assembly 30, a rotor assembly 40, a sun gear 50, a planetary gear 60, an inner gear ring 70, a first mounting seat 81, a second mounting seat 82, a second supporting shaft 22, a first sealing ring 91 and a second sealing ring 92; the shell 10 comprises a shell base 11 and a side cover 12 oppositely connected with the shell base 11; a first supporting opening is formed in the middle of the side cover 12, the first supporting shaft 20 is rotatably located at the first supporting opening, one end of the first supporting shaft 20 located in the shell 10 is connected with a bearing frame 21, and a first sealing ring 91 is arranged between the outer side of the bearing frame 21 and the side cover 12; a first bearing is arranged in the bearing frame 21, and a first end of the sun gear 50 is rotatably supported by the first bearing; the first mounting seat 81 is fixedly sleeved on the bearing frame 21, and the stator assembly 30 is fixedly arranged at a position, close to the circumferential edge, of one side, far away from the side cover 12, of the first mounting seat 81; the rotor assembly 40 is fixedly sleeved on the sun gear 50; the planet gear 60 is meshed with the sun gear 50 towards the inner side of the sun gear 50, and is meshed with the inner gear ring 70 away from the outer side of the sun gear 50, and the inner gear ring 70 is fixedly connected with the shell base 11; a spoke connecting convex block 111 is arranged on the circumferential outer side of the shell base 11 in a protruding mode, and a connecting hole is formed in the spoke connecting convex block 111; a second supporting opening is formed in the middle of one side of the housing base 11, which is far away from the side cover 12, a second mounting seat 82 is rotatably located at the second supporting opening, and a second supporting shaft 22 is fixedly connected with the second mounting seat 82; a second bearing is arranged on the inner side of the second mounting seat 82, and a second end of the sun gear 50 is rotatably supported by the second bearing; the second seal ring 92 is disposed between the second mounting seat 82 and the housing base 11; heat dissipating lubricating oil is injected into the case 10. The volume is small, the weight is light, no transmission mechanism is arranged, and the reliability is improved.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (6)
1. An electric vehicle drive motor, characterized by: the device comprises a shell, a first supporting shaft, a stator assembly, a rotor assembly, a sun gear, a planetary gear, an inner gear ring, a first mounting seat, a second supporting shaft, a first sealing ring and a second sealing ring; the shell comprises a shell base and a side cover which is oppositely connected with the shell base; a first supporting opening is formed in the middle of the side cover, a first supporting shaft is rotatably positioned at the first supporting opening, one end of the first supporting shaft, which is positioned in the shell, is connected with a bearing frame, and a first sealing ring is arranged between the outer side of the bearing frame and the side cover; a first bearing is arranged in the bearing frame, and a first end of the sun gear is rotatably supported by the first bearing; the first mounting seat is fixedly sleeved on the bearing frame, and the stator assembly is fixedly arranged on one side of the first mounting seat, which is far away from the side cover, and is close to the circumferential edge; the rotor component is fixedly sleeved on the sun wheel; the inner side of the planetary gear, which faces the sun gear, is meshed with the sun gear, the outer side of the planetary gear, which is far away from the sun gear, is meshed with an inner gear ring, and the inner gear ring is fixedly connected with the base of the shell; a spoke connecting convex block is arranged on the outer side of the periphery of the shell base, and a connecting hole is formed in the spoke connecting convex block; a second supporting opening is formed in the middle of one side, far away from the side cover, of the shell base, a second mounting seat is rotatably located at the second supporting opening, and a second supporting shaft is fixedly connected with the second mounting seat; a second bearing is arranged on the inner side of the second mounting seat, and a second end of the sun gear is rotatably supported by the second bearing; the second sealing ring is arranged between the second mounting seat and the shell base; the shell is filled with heat dissipation lubricating oil.
2. The electric vehicle drive motor according to claim 1, characterized in that: the stator assembly comprises magnetic steel and a stator coil wound outside the magnetic steel.
3. The electric vehicle drive motor according to claim 1, characterized in that: the rotor assembly comprises a rotor disc fixedly sleeved on the sun wheel and permanent magnets arranged on the circumferential edge of the rotor disc, the outer diameter of the rotor disc is smaller than the distance from the inner side of the stator assembly facing the sun wheel to the axis of the sun wheel, and the permanent magnets are located on the inner side of the magnetic steel.
4. The electric vehicle drive motor according to claim 1, characterized in that: a gear rotating shaft penetrates through the middle of the planetary gear, and a rotating bearing is arranged between the gear rotating shaft and the planetary gear.
5. The electric vehicle drive motor according to claim 4, characterized in that: the isolating block is positioned on one side of the stator assembly and the rotor assembly, which is far away from the side cover, and is connected with the first mounting seat; a third sealing ring is arranged between the isolation block and the gear rotating shaft; and heat dissipation lubricating oil is injected into the space among the shell base, the second mounting seat, the rotating bearing and the isolation block.
6. The electric vehicle drive motor according to claim 4, characterized in that: and a fourth sealing ring is arranged between the rotating bearing and the rotor disc, and heat dissipation lubricating oil is injected into a space among the second mounting seat, the sun gear, the rotating bearing and the rotor disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021272501.2U CN212115061U (en) | 2020-07-02 | 2020-07-02 | Driving motor of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021272501.2U CN212115061U (en) | 2020-07-02 | 2020-07-02 | Driving motor of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212115061U true CN212115061U (en) | 2020-12-08 |
Family
ID=73628482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021272501.2U Expired - Fee Related CN212115061U (en) | 2020-07-02 | 2020-07-02 | Driving motor of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212115061U (en) |
-
2020
- 2020-07-02 CN CN202021272501.2U patent/CN212115061U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314100 workshop 3, No.9 Zhenye Road, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Zhenqiang Precision Machinery Co.,Ltd. Address before: 314100 workshop 3, No.9 Zhenye Road, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG ZHENQIANG PRECISION MACHINERY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201208 |