CN214146335U - Electric automobile insulation transmission shaft device - Google Patents
Electric automobile insulation transmission shaft device Download PDFInfo
- Publication number
- CN214146335U CN214146335U CN202022745864.XU CN202022745864U CN214146335U CN 214146335 U CN214146335 U CN 214146335U CN 202022745864 U CN202022745864 U CN 202022745864U CN 214146335 U CN214146335 U CN 214146335U
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- connecting piece
- transmission shaft
- coupler connecting
- coupler
- shaft
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Abstract
The utility model discloses an electric automobile insulated transmission shaft device, which comprises a first coupler connecting piece (2), a second coupler connecting piece (4), a transmission shaft (1) and an insulating plate (3); one end of the transmission shaft is connected with the automobile driving shaft, the other end of the transmission shaft is connected with the shaft connecting end of the first coupler connecting piece, and the rotating shaft of the motor is connected with the shaft connecting end of the second coupler connecting piece; the insulating plate is arranged between the flange plate of the first coupler connecting piece and the flange plate of the second coupler connecting piece, the flange plate of the first coupler connecting piece, the insulating plate and the flange plate of the second coupler connecting piece are fixedly connected together, and the insulating plate isolates the first coupler connecting piece from the second coupler connecting piece. The utility model discloses an among the insulating transmission shaft device, the insulation board is kept apart first coupling joint spare and second coupling joint spare, has avoided the motor electric leakage to pass through transmission shaft conduction to automobile body, has ensured driver and passenger's person and vehicle safety in the car.
Description
Technical Field
The utility model relates to an automobile transmission shaft device especially relates to an electric automobile insulation transmission shaft device.
Background
With the progress of society and the development of science and technology, the replacement of fuel vehicles by new energy vehicles is a necessary development trend in the future, and particularly, the development of electric vehicles is the most prominent. In a conventional fuel-powered vehicle, the torque output from the fuel engine must be transmitted to the drive shaft of the vehicle through a relatively complex transmission, including a transmission, a clutch, and the like. In the electric automobile, the motor has the characteristic of flexible control, so that the electric automobile does not need complex transmission parts such as a speed changer, a clutch and the like, only needs one transmission shaft to connect the motor and the driving shaft together, and the transmission structure is very simple. Just because the electric automobile has the advantage of simple transmission structure, the electric automobile also becomes the main direction of new energy vehicle development.
According to the foregoing, the driving modes of the electric vehicle are: the motor transmits the driving torque to a driving shaft of the automobile through a transmission shaft, and the driving shaft drives wheels to rotate. However, in the existing electric automobile, no insulation structure is arranged on a transmission path from the motor to the transmission shaft, the motor is difficult to avoid the phenomenon of electric leakage, and the electric leakage of the motor can be transmitted to the automobile body through the transmission shaft, so that the personal safety of personnel in a carriage can be threatened, and the electric leakage can also interfere with various electric components of the automobile.
Disclosure of Invention
An object of the utility model is to provide an electric automobile insulating transmission shaft device, among this insulating transmission shaft device, keep apart first coupling joint spare and second coupling joint spare with the insulation board, avoided the motor electric leakage to pass through transmission shaft conduction to automobile body to the personal safety of the driver and crew in the car and the safety of traveling of vehicle have been ensured.
In order to realize the technical purpose, the utility model adopts the following technical scheme:
an electric automobile insulated transmission shaft device comprises a first coupler connecting piece, a second coupler connecting piece, a transmission shaft and an insulating plate; one end of the first coupler connecting piece is a shaft connecting end, the other end of the first coupler connecting piece is a flange plate, one end of the second coupler connecting piece is a shaft connecting end, and the other end of the second coupler connecting piece is a flange plate; one end of the transmission shaft is connected with an automobile driving shaft, the other end of the transmission shaft is connected with the shaft connecting end of the first coupler connecting piece, and the rotating shaft of the motor is connected with the shaft connecting end of the second coupler connecting piece; the insulating plate is arranged between the flange plate of the first coupler connecting piece and the flange plate of the second coupler connecting piece, the flange plate of the first coupler connecting piece, the insulating plate and the flange plate of the second coupler connecting piece are fixedly connected together, and the insulating plate isolates the first coupler connecting piece from the second coupler connecting piece.
Furthermore, the other end of the transmission shaft is connected with the shaft connecting end of the first coupling connecting piece through a universal joint.
The utility model discloses a relative prior art of insulating transmission shaft device links together motor shaft and transmission shaft with first coupling joint spare and second coupling joint spare, sets up the insulation board between first coupling joint spare and second coupling joint spare, keeps apart first coupling joint spare and second coupling joint spare with the insulation board, and its beneficial effect lies in: the insulation board plays an insulating role between the motor and the transmission shaft, so that the motor leakage is prevented from being conducted to the vehicle body through the transmission shaft, on one hand, the motor leakage is prevented from being further conducted to the carriage, the electric shock accidents of personnel are prevented, the personal safety of the driver and the passengers in the vehicle is guaranteed, on the other hand, the interference of the motor leakage to each electric component of the vehicle is avoided, and the driving safety of the vehicle is guaranteed.
Drawings
Fig. 1 is the structure diagram of the insulated transmission shaft device of the electric vehicle of the present invention, in the diagram, the direction indicated by the arrow a is the motor position direction, and the direction indicated by the arrow B is the vehicle driving shaft position direction.
In the figure: the universal joint comprises a transmission shaft 1, a first coupler connecting piece 2, an insulating plate 3, a second coupler connecting piece 4 and a universal joint 5.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
the present embodiment is an insulated transmission shaft device for an electric vehicle, which is mainly used in a trolley bus and transmits a driving torque of a motor to a driving shaft of the trolley bus. The insulated transmission shaft device can also be used in other types of electric automobiles.
Referring to fig. 1, the insulated transmission shaft device of the present embodiment includes a transmission shaft 1, a first coupling connector 2, a second coupling connector 4, and an insulating plate 3.
One end of the first coupler connecting piece 2 is a shaft connecting end, the other end of the first coupler connecting piece 2 is a flange plate, one end of the second coupler connecting piece 4 is a shaft connecting end, and the other end of the second coupler connecting piece 4 is a flange plate. The first coupling connector 2 and the second coupling connector 4 are combined together to form a complete coupling.
The coupling is a mechanical part used for connecting a driving shaft and a driven shaft in different mechanisms to rotate together and transmitting motion and torque. A complete coupler is composed of two coupler connecting pieces, when two rotating shafts are in butt joint through the coupler, the two coupler connecting pieces of the coupler are respectively connected with the two rotating shafts, and then the two coupler connecting pieces are in butt joint with each other, so that the two rotating shafts are connected.
One end of the transmission shaft 1 is connected with a vehicle driving shaft (not shown in the figure), the position of the vehicle driving shaft is indicated by an arrow B in the figure, the other end of the transmission shaft 1 is connected with a shaft connecting end of the first coupling connecting piece 2, a rotating shaft of the motor is connected with a shaft connecting end of the second coupling connecting piece 4 (not shown in the figure), and the position of the motor is indicated by an arrow A in the figure. Preferably, the other end of the transmission shaft 1 is connected with the shaft connecting end of the first coupling connecting piece 2 through a universal joint 5, and the universal joint 5 is a cross-axle universal joint.
The insulating plate 3 is arranged between the flange plate of the first coupler connecting piece 2 and the flange plate of the second coupler connecting piece 4, the flange plate of the first coupler connecting piece 2, the insulating plate 3 and the flange plate of the second coupler connecting piece 4 are fixedly connected together through bolts, and the insulating plate 3 isolates the first coupler connecting piece 2 from the second coupler connecting piece 4.
In the embodiment, the shaft coupling formed by the first coupling connecting piece 2 and the second coupling connecting piece 4 connects the motor rotating shaft with the transmission shaft 1, the motor can normally drive the transmission shaft 1 to rotate, meanwhile, the first coupling connecting piece 2 and the second coupling connecting piece 4 are isolated by the insulating plate 3, and the insulating plate 3 plays an insulating role between the motor and the transmission shaft 1, so that the motor leakage is prevented from being transmitted to a vehicle body through the transmission shaft 1, therefore, on one hand, the motor leakage is prevented from being further transmitted to the interior of a carriage to endanger the personal safety of drivers and passengers, on the other hand, the interference of the motor leakage on each electric component of the vehicle is avoided, and the running safety of the vehicle is guaranteed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (2)
1. The utility model provides an electric automobile insulation transmission shaft device which characterized in that: the coupler comprises a first coupler connecting piece (2), a second coupler connecting piece (4), a transmission shaft (1) and an insulating plate (3);
one end of the first coupler connecting piece (2) is a shaft connecting end, the other end of the first coupler connecting piece (2) is a flange plate, one end of the second coupler connecting piece (4) is a shaft connecting end, and the other end of the second coupler connecting piece (4) is a flange plate;
one end of the transmission shaft (1) is connected with an automobile driving shaft, the other end of the transmission shaft (1) is connected with a shaft connecting end of the first coupler connecting piece (2), and a rotating shaft of the motor is connected with a shaft connecting end of the second coupler connecting piece (4);
the insulating plate (3) is arranged between the flange plate of the first coupler connecting piece (2) and the flange plate of the second coupler connecting piece (4), the flange plate of the first coupler connecting piece (2), the insulating plate (3) and the flange plate of the second coupler connecting piece (4) are fixedly connected together, and the insulating plate (3) isolates the first coupler connecting piece (2) from the second coupler connecting piece (4).
2. The insulated transmission shaft device for the electric vehicle according to claim 1, wherein: the other end of the transmission shaft (1) is connected with the shaft connecting end of the first coupling connecting piece (2) through a universal joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022745864.XU CN214146335U (en) | 2020-11-24 | 2020-11-24 | Electric automobile insulation transmission shaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022745864.XU CN214146335U (en) | 2020-11-24 | 2020-11-24 | Electric automobile insulation transmission shaft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214146335U true CN214146335U (en) | 2021-09-07 |
Family
ID=77566288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022745864.XU Active CN214146335U (en) | 2020-11-24 | 2020-11-24 | Electric automobile insulation transmission shaft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214146335U (en) |
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2020
- 2020-11-24 CN CN202022745864.XU patent/CN214146335U/en active Active
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