CN220447654U - Driving system of electric automobile - Google Patents
Driving system of electric automobile Download PDFInfo
- Publication number
- CN220447654U CN220447654U CN202322042199.1U CN202322042199U CN220447654U CN 220447654 U CN220447654 U CN 220447654U CN 202322042199 U CN202322042199 U CN 202322042199U CN 220447654 U CN220447654 U CN 220447654U
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- shaft
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- driving motor
- output half
- half shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides an electric automobile driving system, comprising: a driving motor; the speed reducer is in transmission connection with the driving motor; and the output shaft assembly comprises a first output half shaft and a second output half shaft, one side of the output end of the speed reducer is in transmission connection with one end of the first output half shaft, the other side of the output end of the speed reducer is in transmission connection with the switching shaft, one end of the switching shaft, which is far away from the first output half shaft, is in rotation connection with the driving motor through a bearing seat, one end of the second output half shaft is in transmission connection with the switching shaft through the bearing seat, and the other end of the second output half shaft is far away from the switching shaft. The utility model has compact structure, convenient installation, high reliability and strong universality, and most importantly, the length of the existing output shaft is changed, so that the torque of the output shaft in work is changed, and the phenomenon of broken shaft is avoided.
Description
Technical Field
The utility model belongs to the technical field of electric drive of new energy automobiles, and particularly relates to an electric automobile drive system.
Background
The design of the motor driving system of the current electric automobile usually adopts a motor integrated speed reducer, and then the speed reducer is connected with the wheels of the automobile through a connecting output shaft so as to drive the electric automobile to move, however, in the present stage, the output shaft connected with the speed reducer is generally two output half shafts, one end of each of the two output half shafts is connected with the speed reducer, the other end of each of the two output half shafts is connected with the wheels on one side of the electric automobile, due to the influences of factors such as the width of the electric automobile, the mounting positions of the motor and the speed reducer, and the like, the two output half shafts connected with the wheels on two sides of the electric automobile are all long and short, one end of each of the two output half shafts with different lengths is connected with the speed reducer, and the other end of each of the two output half shafts with different lengths is connected with the corresponding wheels on one side, so that common faults of the electric automobile are extremely easy to occur when the service cycle is long, namely, the output half shafts connected with the wheels are extremely easy to break, namely, under long-time work, the faults caused by excessive running of the output half shafts with longer lengths are extremely dangerous to the electric automobile and passengers.
Disclosure of Invention
In view of this, in order to solve the problem that the output half shaft is longer, so that the torque is larger, and the 'broken shaft' occurs, and further, the safety accident occurs, the embodiment of the utility model provides an electric automobile driving system.
An embodiment of the present utility model provides an electric vehicle driving system including:
a driving motor;
the speed reducer is in transmission connection with the driving motor;
the output shaft assembly comprises a first output half shaft, an adapter shaft, a second output half shaft and a bearing seat; the first output half shaft and the switching shaft are in transmission connection through the output end of the speed reducer; one end of the transfer shaft, which is far away from the first output half shaft, is in transmission connection with the second output half shaft and is supported by the bearing seat, and the bearing seat is installed on the driving motor.
Further, the first output half shaft, the adapter shaft, and the second output half shaft are coaxially arranged and perpendicular to the vehicle advancing direction.
Further, the bearing seat is detachably connected with the driving motor.
Further, hanging holes are respectively formed in two ends of the driving motor along the axis direction of the first output half shaft.
Further, the drive motor is provided with a suspension mounting seat hole.
Further, the lower end of the driving motor is provided with a waterproof ventilation valve.
Further, the driving motor is detachably provided with a mounting plate, and the bearing seat is detachably arranged on the mounting plate.
Further, one end of the driving motor is provided with a low-voltage signal plug-in unit.
Further, a three-phase wire connector is arranged at the top of one end of the driving motor, which is provided with the low-voltage signal connector.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that: according to the electric automobile driving system, two output half shafts connected with wheels in the prior art are changed into three shafts in transmission connection with each other, so that the length of a single shaft body is reduced, the torque of the output half shafts is reduced when an automobile body moves, and the phenomenon that the shaft body is broken due to the fact that the torque of the shaft body is large is avoided; meanwhile, the bearing seat is arranged to enable transmission among the shaft bodies to be stable, and the device is compact in structure, convenient to install, high in reliability and high in universality.
Drawings
FIG. 1 is a schematic diagram of the overall result of an electric vehicle drive system according to the present utility model;
fig. 2 is a schematic view of the structure of fig. 1 from another view angle.
In the figure: the device comprises a 1-driving motor, a 2-speed reducer, a 3-first output half shaft, a 4-switching shaft, a 5-second output half shaft, a 6-bearing seat, a 7-mounting plate, an 8-hanging hole, a 9-cooling water pipe orifice, a 10-cover plate, an 11-three-phase wire connector, a 12-low voltage signal connector and a 13-suspension mounting seat hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present utility model provides an electric vehicle driving system, which includes a driving motor 1 and an output shaft assembly.
The driving motor 1 is used for providing power for the output shaft assembly, and the output shaft assembly is used for being in transmission connection with wheels on two sides of a vehicle so as to drive the vehicle to move; the output end transmission connection of driving motor 1 is equipped with reduction gear 2, and reduction gear 2 and driving motor 1 are even whole to be covered and are established in the protective housing, and in this embodiment, reduction gear 2 is located driving motor 1's front end left side, and the output of reduction gear 2 is two-way port, and the axis direction of the output of reduction gear 2 is unanimous with driving motor 1's length to perpendicular with the vehicle direction of traveling.
The driving motor 1 is provided with a cooling water pipe orifice 9, the cooling water pipe orifice 9 is used for enabling cooling liquid to circulate so as to radiate heat of the driving motor 1 during operation, and meanwhile, the lower end of the driving motor 1 is provided with a waterproof ventilation valve; the right side of the front end of the driving motor 1 is provided with a low-voltage signal plug-in 12, and the low-voltage signal plug-in 12 is used for transmitting a low-voltage control signal to the motor so as to control the rotation of the motor; the end part of one end of the driving motor 1, which is provided with a low-voltage signal plug-in 12, is fixedly provided with a detachable cover plate 10, the cover plate 10 is detachably and fixedly connected with a protective shell on the periphery of the driving motor 1, a detachable bearing seat 6 is fixedly arranged on the cover plate 10, the axis of a bearing in the bearing seat 6 and the axis of the output end of the speed reducer 2 are positioned on the same straight line, and the straight line is perpendicular to the running direction of a vehicle; one end of the output shaft component is in transmission connection with the speed reducer 2, the other end of the output shaft component is in rotatable connection with a bearing in the bearing seat 6, and the end parts of the two ends of the output shaft component are respectively connected with wheels on two sides of a vehicle.
The output shaft assembly includes first output semi-axis 3, in this embodiment, the one end of first output semi-axis 3 is connected with the transmission of reduction gear 2 output one side, the other end keeps away from reduction gear 2 and is connected with the wheel of the corresponding side of vehicle, the output opposite side of reduction gear 2 is equipped with adapter shaft 4, the one end of adapter shaft 4 is connected with the corresponding side transmission of reduction gear 2 output, the other end is towards bearing frame 6 and with bearing in the bearing frame 6 rotation, bearing frame 6 is equipped with mounting panel 7 and can dismantle fixed connection through mounting panel 7 and apron 10, it is to be said here that, in this embodiment, the axis of adapter shaft 4 and first output semi-axis 3 is the coincidence each other, so can ensure that the coaxial difficult eccentric torsion that appears of two.
The output shaft assembly further comprises a second output half shaft 5, the lengths of the first output half shaft 3 and the second output half shaft 5 are the same, one end of the second output half shaft 5 is rotationally connected with a bearing in a bearing seat 6 so as to be in transmission connection with the adapter shaft 4 through the bearing in the bearing seat 6, and the other end of the second output half shaft 5 faces away from the direction of the adapter shaft 4 and is in transmission connection with wheels on the corresponding side of the vehicle.
It should be noted that, in this embodiment, two half shafts with identical lengths are adopted to drive the wheels on two sides of the vehicle, so that compared with the existing half shaft with a long length and a short length, the phenomenon that the torque of the shaft body is increased due to eccentricity when the working speed is high can be avoided, and meanwhile, the axes of the first output half shaft 3, the adapter shaft 4 and the second output half shaft 5 are all located on the same straight line.
The top of one end of the driving motor 1 provided with the low-voltage signal plug-in 12 is connected with a three-phase line connector 11 for three-phase alternating current input to drive the motor to operate; meanwhile, the rear end of the driving motor 1 is provided with a plurality of suspension mounting seat holes 13, so that the motor can be fixedly mounted on a vehicle body through each suspension mounting seat hole 13 when the driving motor 1 is mounted; and the driving motor 1 in the present embodiment is provided with a plurality of hanging holes so as to facilitate movement when the driving motor 1 is installed.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (9)
1. An electric vehicle drive system, comprising:
a drive motor (1);
a speed reducer (2) in transmission connection with the driving motor (1);
the output shaft assembly comprises a first output half shaft (3), a transfer shaft (4), a second output half shaft (5) and a bearing seat (6); the first output half shaft (3) and the switching shaft (4) are in transmission connection through the output end of the speed reducer (2); one end of the switching shaft (4) far away from the first output half shaft (3) is in transmission connection with the second output half shaft (5) and is supported by the bearing seat (6), and the bearing seat (6) is installed on the driving motor (1).
2. The electric vehicle drive system of claim 1, wherein: the first output half shaft (3), the transfer shaft (4) and the second output half shaft (5) are coaxially arranged and perpendicular to the advancing direction of the vehicle.
3. The electric vehicle drive system of claim 1, wherein: the bearing seat (6) is detachably connected with the driving motor (1).
4. The electric vehicle drive system of claim 1, wherein: and hanging holes (8) are respectively formed in two ends of the driving motor (1) along the axial direction of the first output half shaft (3).
5. The electric vehicle drive system of claim 1, wherein: the driving motor (1) is provided with a suspension mounting seat hole (13).
6. The electric vehicle drive system of claim 1, wherein: the lower end of the driving motor (1) is provided with a waterproof ventilation valve.
7. An electric vehicle drive system as claimed in claim 3, wherein: the driving motor (1) is detachably provided with a mounting plate (7), and the bearing seat (6) is detachably arranged on the mounting plate (7).
8. The electric vehicle drive system of claim 1, wherein: one end of the driving motor (1) is provided with a low-voltage signal plug-in unit (12).
9. The electric vehicle drive system of claim 8, wherein: the top of one end of the driving motor (1) provided with the low-voltage signal plug-in unit (12) is provided with a three-phase line plug-in unit (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322042199.1U CN220447654U (en) | 2023-07-31 | 2023-07-31 | Driving system of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322042199.1U CN220447654U (en) | 2023-07-31 | 2023-07-31 | Driving system of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220447654U true CN220447654U (en) | 2024-02-06 |
Family
ID=89731742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322042199.1U Active CN220447654U (en) | 2023-07-31 | 2023-07-31 | Driving system of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220447654U (en) |
-
2023
- 2023-07-31 CN CN202322042199.1U patent/CN220447654U/en active Active
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