TWM672022U - Electric power-assisted steering device for all-terrain vehicle - Google Patents

Abstract

The invention relates to an electric assisted steering device for an all-terrain vehicle. The all-terrain vehicle at least comprises a frame unit and a power unit arranged on the frame unit; the frame unit at least comprises a pair of upper and lower side tubes on the left and right sides, the upper side tubes having a descending tube portion, the lower end of the descending tube portion being connected to the lower side tube; the frame unit is provided with a steering mechanism; the steering mechanism is provided with an electric assisted steering device, the electric assisted steering device comprises a controller body and an electric motor capable of controlling the operation of the controller body; the controller body has a shaft connected to the steering shaft. The upper shaft connected to the steering rod and the lower shaft connected to the steering arm; when viewed from the top of the vehicle body, the electric motor is arranged to face the front of the vehicle body and be slightly horizontal to the center line of the vehicle body, and is located between the left and right upper side pipes; when viewed from the side of the vehicle body, the electric motor is located in the area surrounded by the steering rod, the upper side pipe and the lower side pipe towards the front of the vehicle body, and is adjacent to the upper side pipe; thereby, the electric motor can be prevented from being affected by the high temperature of the exhaust device; the lower side pipe, the upper side pipe and the down pipe can protect the electric motor of the electric auxiliary steering device.

Description

Electric steering for all-terrain vehicles

This invention relates to an electric assisted steering device for an all-terrain vehicle, and in particular to an electric assisted steering device for an all-terrain vehicle that can prevent the electric motor from being affected by the high temperature of the exhaust device.

As shown in FIG1 , in order to improve the convenience and accuracy of turning, the ATV 1 is equipped with an electric assisted steering device 12 on a steering mechanism 11. The electric assisted steering device 12 comprises a controller body 121 and an electric motor 122 that can drive the controller body 121 to operate. The electric motor 122 is disposed at a position of the controller body 121 toward the rear of the vehicle body, that is, the electric motor 122 is close to the power unit 13 of the ATV 1, especially close to the exhaust device 131 of the power unit 13. As is well known, the exhaust device 131 of the internal combustion power unit 13 is The exhaust device 131 is used to discharge the high-temperature exhaust gas after the power unit 13 is burned and exploded. Therefore, when the all-terrain vehicle 1 is driving, the exhaust device 131 will be in an ultra-high temperature state. Therefore, when the electric motor 122 is close to the exhaust device 131, the high temperature of the exhaust device 131 will affect the normal operation of the electric motor 122. In severe cases, the electric motor 122 will stop working or be damaged due to heat damage, thereby causing the electric auxiliary steering device 12 to be unable to operate, and further causing the steering mechanism 11 of the all-terrain vehicle 1 to operate unsmoothly or unable to operate, which will cause serious concerns about the driving safety of the all-terrain vehicle 1.

Therefore, how to provide an electric assisted steering device for an all-terrain vehicle to solve the problem of electric assisted steering device settings for all-terrain vehicles and avoid driving safety concerns has become an urgent issue for all-terrain vehicle manufacturers to solve.

The main purpose of this invention is to provide an electric assisted steering device for an all-terrain vehicle, mainly to overcome the shortcomings of the conventional electric assisted steering device for all-terrain vehicles, which may easily cause driving safety concerns.

To this end, the present invention provides an electric assisted steering device for an all-terrain vehicle, wherein the all-terrain vehicle at least includes a frame unit and a power unit disposed on the frame unit; the frame unit at least has a pair of upper and lower side tubes on the left and right, the upper side tubes having a descending tube portion, the lower end of the descending tube portion being connected to the lower side tube; the frame unit is provided with a steering mechanism, the steering mechanism having a steering shaft, a steering handle disposed at the upper end of the steering shaft, and a steering arm disposed at the lower end of the steering shaft; the steering mechanism is provided with an electric assisted steering The electric auxiliary steering device has a controller body and an electric motor capable of controlling the operation of the controller body; the controller body has an upper shaft connected to the steering shaft and a lower shaft connected to the steering arm; when viewed from the top of the vehicle body, the electric motor is arranged to face the front of the vehicle body and be slightly horizontal to the center line of the vehicle body, and is located between the left and right pairs of upper side tubes; when viewed from the side of the vehicle body, the electric motor is located in the area surrounded by the steering shaft, the upper side tube and the lower side tube, and is adjacent to the upper side tube.

To this end, some embodiments of the present invention provide an electric assisted steering device for an all-terrain vehicle, wherein the power unit has at least a cylinder block, and the cylinder block has a cylinder body and a cylinder head; the electric motor of the electric assisted steering device is arranged to be slightly the same height as the cylinder head.

To this end, some embodiments of the present invention provide an electric assisted steering device for an all-terrain vehicle, wherein an anti-lock braking system is installed below the electric assisted steering device of the all-terrain vehicle, and the anti-lock braking system is located above the front wheel transmission case.

To this end, some embodiments of the present invention provide an electric assisted steering device for an all-terrain vehicle, wherein when viewed from the side of the vehicle body, the anti-lock braking system partially overlaps the front wheel of the all-terrain vehicle.

To this end, in some embodiments of the present invention, an electric assisted steering device for an all-terrain vehicle is provided, the electric assisted steering device has an electric motor; the anti-lock braking system has a motor; when viewed from the vehicle body, the motor of the anti-lock braking system extends toward the rear of the vehicle body and is slightly parallel to the center line of the vehicle body of the all-terrain vehicle; the electric motor is arranged to face the front of the vehicle body and is slightly horizontal to the center line of the vehicle body; the electric motor is arranged toward the front of the vehicle body, and the motor is arranged toward the rear of the vehicle body and partially overlaps with the electric motor.

To this end, some embodiments of the invention provide an electric assisted steering device for an all-terrain vehicle, wherein the power unit further has a transmission case, and the transmission case is provided with a cooling air device; the cooling air device has an air inlet pipe and an air inlet provided at one end of the air inlet pipe; the air inlet pipe is arranged around the outer side of the upper side pipe and connected to the transmission case at the other end opposite to the air inlet; when viewed from the side of the vehicle body, the electric assisted steering device and the air inlet pipe are partially overlapped.

The effects that can be achieved by some embodiments of the invention are: the electric motor can be kept away from the exhaust device of the power unit, thereby preventing the electric motor from being affected by the high temperature of the exhaust device. At the same time, when the all-terrain vehicle is driving, the fresh cold air from the outside enters the vehicle cover unit and most of the cold air can blow on the electric motor to dissipate heat, thereby improving the operation effect of the electric auxiliary steering device; the lower side pipe, the upper side pipe and the descending pipe can protect the electric motor of the electric auxiliary steering device to prevent the ground sand and gravel from hitting the electric motor of the electric auxiliary steering device.

The effect that can be achieved by some embodiments of this invention is that the electric motor of the electric auxiliary steering device can be kept at a certain height from the ground to avoid mud splashing and gravel impact on the ground.

The effect that can be achieved by some embodiments of this invention is that the space after the electric motor of the electric auxiliary steering device is moved upward can be fully utilized to balance the space for setting the anti-lock braking system.

The effect that can be achieved by some embodiments of this invention is that the anti-lock braking system can be brought closer to the braking device of the front wheel.

The effect that can be achieved by some embodiments of the invention is that the electric motor of the electric steering device and the anti-lock brake system can be compactly configured, and the configuration weight can be centralized.

The effect that can be achieved by some embodiments of this invention is that the configuration of the electric motor of the electric auxiliary steering device can be facilitated.

1: All-terrain vehicle

11: Steering mechanism

12: Electric assisted steering device

121: Controller body

122; Electric motor

13: Power unit

131: Exhaust device

2: All-terrain vehicle

2a: Vehicle centerline

3: Frame unit

31: Steering mechanism

311: Steering shaft

312: Turning handle

313: Steering arm

314: Turning lever

32: Upper side tube

321: Downcomer

33: Lower side tube

34: Front auxiliary tube set

35: Rear auxiliary tube set

36: Rear storage rack

37: Connecting frame

4: Seat cushion

5: Power unit

51: Cylinder block

511: Cylinder body

512: Cylinder head

52: Transmission box

53: Exhaust device

531: Front pipe section

54: Cooling air device

541: Air intake pipe

542: Air inlet

6: Anti-lock braking system

61: Controller

62: Motor

7: Body cover unit

71:Front body cover assembly

72: Upper decorative cover assembly

73: Side body cover assembly

74: Rear body cover assembly

8: Electric assisted steering device

81: Controller body

811: Upper shaft

812: Lower axis

82: Electric motor

B: Braking device

C:Shock absorber

D:Front wheel transmission case

T: Fuel tank

FW:Front wheel

RW: rear wheel

〔Figure 1〕is a schematic diagram of an all-terrain vehicle.

[Figure 2] is a schematic diagram of the all-terrain vehicle in this creation.

[Figure 3] is a schematic diagram of the rear side view of this all-terrain vehicle after removing the body cover unit.

[Figure 4] is a top-down diagram of the all-terrain vehicle in this creation.

〔Figure 5〕is a partial enlarged view of the front part of Figure 4.

In order to make it easier for you, the reviewer, to understand the structure of this creation and the effects it can achieve, we provide the following diagrams;

First, please refer to Figures 2 and 3, the electric assisted steering device of the all-terrain vehicle of this invention, the all-terrain vehicle 2 at least includes a frame unit 3, a seat 4 arranged above the rear section of the frame unit 3, a fuel tank T arranged on the frame unit 3 and located behind the seat 4, a power unit 5 arranged on the frame unit 3, an anti-lock braking system 6 for braking the all-terrain vehicle 2, and a body cover unit 7 covering the outer periphery of the frame unit 3.

As shown in FIGS. 2, 3 and 4, the front section of the frame unit 3 is provided with a steering mechanism 31, and a pair of left and right front wheels FW are pivotally arranged below the front section of the frame unit 3 and can be controlled by the steering mechanism 31; the frame unit 3 has at least a pair of left and right upper side tubes 32, and a pair of lower side tubes 33 arranged below the upper side tubes 32 and in a corresponding shape; wherein the upper side tubes 32 have a descending tube portion 321 toward the front of the vehicle (the arrow direction in the figure is the front of the vehicle), the lower end of the descending tube portion 321 is connected to the lower side tube 33, and the front of the upper side tube 32 and the lower side tube 33 (towards the front of the vehicle) is connected to the lower side tube 33. A front auxiliary tube group 34 is connected to the two sides between the upper tube 32 and the lower tube 33, and the front auxiliary tube group 34 has a pair of left and right sides, and the front auxiliary tube group 34 is connected to the down tube part 321, the lower tube 33 and the upper tube 32 respectively; the rear end (the rear end) of the frame unit 3 is provided with a rear auxiliary tube group 35 on the two sides between the upper tube 32 and the lower tube 33, and the rear auxiliary tube group 35 has a pair, and the upper tube 32 and the lower tube 33 are connected respectively; the rear end (the rear end) of the frame unit 3 is provided with a rear rack 36 on the upper tube 32; a pair of left and right sides The rear wheel RW is pivoted at the lower rear section of the frame unit 3; the steering mechanism 31 has a steering shaft 311 that can control the rotation of the front wheel FW, and an electric auxiliary steering device 8 is provided below the steering shaft 311 of the steering mechanism 31; the upper side tube 32 is equipped with a shock absorber C in the direction of the front wheel FW; the frame unit 3 is provided with a connecting frame 37 on the down tube 321 and the front auxiliary tube group 34, and the anti-lock braking system 6 is locked on the connecting frame 37; the anti-lock braking system 6 has a controller 61 and a motor 62 of a power source, and the controller 61 and the power source are connected to the controller 61 of the present invention. The anti-lock braking system 6 is implemented by integrating the motor 62 of the power source. When viewed from the top of the vehicle body, the motor 62 of the anti-lock braking system 6 extends toward the rear of the vehicle body and is slightly parallel to the center line 2a of the vehicle body of the all-terrain vehicle 2. When viewed from the side of the vehicle body, the anti-lock braking system 6 is located above the front wheel transmission case D. The anti-lock braking system 6 is arranged below the electric auxiliary steering device 8 along the vertical direction of the vehicle body, and the anti-lock braking system 6 and the front wheel FW of the all-terrain vehicle 2 are partially overlapped, so that the anti-lock braking system 6 can be closer to the brake device B arranged on the front wheel FW.

As shown in FIGS. 2, 3 and 5, the frame unit 3 is provided with a seat cushion 4 for a rider to sit on above the upper side tube 32 and toward the rear of the vehicle body. The seat cushion 4 can be freely lifted up from the frame unit 3. The frame unit 3 is provided with a power unit 5 between the upper side tube 32 and the lower side tube 33. More specifically, the power unit 5 is located below and in front of the seat cushion 4. The power unit 5 is described in this invention by taking an internal combustion engine system as an example. The vehicle body 5 comprises a cylinder block 51 and a transmission case 52 connected to the cylinder block 51. The cylinder block 51 is connected to an exhaust device 53 extending toward the rear of the vehicle body. The cylinder block 51 has a cylinder body 511 and a cylinder head 512. The exhaust device 53 is mainly used to discharge the exhaust gas after the fuel of the cylinder block 51 of the power unit 5 is burned and exploded. The fuel tank T for storing fuel after the fuel of the cylinder block 51 of the power unit 5 is installed on the frame unit 3. The front end of the transmission case 52 of the power unit 5 is connected to a cooling air device 54; the cooling air device 54 has an air inlet pipe 541 and an air inlet 542 provided at the end of the air inlet pipe 541; one end of the air inlet pipe 541 is connected to the front end of the transmission case 52, and the other end of the air inlet pipe 541 is connected to the air inlet 542. The air inlet pipe 541 is extended toward the front of the vehicle body along the outer side of the upper pipe 32 of the frame unit 3, so that The air inlet 542 can be located at the front end of the frame unit 3; when the power unit 5 is in operation and the all-terrain vehicle 2 is moving, fresh cold air from the outside can be forced into the air inlet pipe 541 through the air inlet 542, and guided into the transmission case 52 through the air inlet pipe 541 for cooling. The cooled hot air is then discharged from the rear end of the transmission case 52 to the outside of the transmission case 52, thereby achieving the effect of cooling and dissipating heat of the transmission case 52.

As shown in FIG2 , the body cover unit 7 includes a front body cover assembly 71 disposed in front of the steering mechanism 31, an upper decorative cover assembly 72 disposed behind the steering mechanism 31 and located in front of the seat cushion 4, a side body cover assembly 73 disposed below the seat cushion 4 and located on both sides of the vehicle body, and a rear body cover assembly 74 located at the rear end of the frame unit 3.

As shown in FIGS. 2, 3, 4 and 5, the steering mechanism 31 comprises a steering shaft 311, a steering handle 312 disposed at the upper end of the steering shaft 311, and a steering arm 313 disposed at the lower end of the steering shaft 311. The steering arm 313 can drive a steering rod 314 to rotate the front wheel FW. The electric assisted steering device 8 is mounted on the lower section of the steering shaft 311. The device 8 has a controller body 81 and an electric motor 82 that can drive the controller body 81 to operate. The preferred implementation of the invention is to implement the controller body 81 and the electric motor 82 in an integrated manner; the controller body 81 has an upper shaft 811 extending out of the top of the controller body 81, and a lower shaft 812 extending out of the bottom of the controller body 81; the upper shaft 811 and the rotating shaft 812 are connected to each other. The lower shaft 812 is connected to the steering arm 313; the electric motor 82 is electrically connected to the battery (not shown) of the all-terrain vehicle 2 to obtain the power required for operation; when the driver wants to turn the all-terrain vehicle 2, the driver turns the steering handle 312 of the steering mechanism 31, and the steering handle 312 drives the steering shaft 311 to rotate, and the steering shaft The rotation of the rod 311 can make the electric assisted steering device 8 operate, and the electric motor 82 can make the controller body 81 operate to drive the steering arm 313 with the lower shaft 812, and the steering arm 313 can drive the front wheel FW to rotate through the steering rod 314, so that the steering action of the all-terrain vehicle 2 can be made labor-saving and precise by the power assistance of the electric assisted steering device 8.

As shown in FIGS. 2, 3, 4, and 5, in a preferred embodiment of the electric auxiliary steering device 8 of the present invention, the electric motor 82 is disposed in front of the controller body 81. More specifically, the electric motor 82 is disposed more toward the front of the vehicle body than the controller body 81. When the electric motor 82 is disposed more toward the front of the vehicle body than the controller body 81, the electric motor 82 is disposed toward the front of the vehicle body and slightly horizontal to the center line of the vehicle body when viewed from above the vehicle body. 2a, and the electric motor 82 is located between the left and right upper tubes 32 of the frame unit 3. When viewed from the side of the vehicle body, the electric motor 82 is located in the area surrounded by the left and right lower tubes 33 and the upper tube 32 and is adjacent to the upper tube 32. The electric motor 82 is also located behind the descending tube 321, so that the electric motor 82 can be far away from the ground. When viewed from the side of the vehicle body, the electric motor 82 is arranged with respect to the power unit 5. The cylinder head 512 of the cylinder block 51 is slightly at the same height; when viewed from above the vehicle body, the electric motor 82 and the anti-lock brake system 6 are partially overlapped, and the electric motor 82 of the electric auxiliary steering device 8 and the motor 62 of the anti-lock brake system 6 are partially overlapped; by arranging the electric motor 82 in the above manner, the electric motor 82 can be kept away from the exhaust device 53 of the power unit 5, thereby preventing the electric motor 82 from being exhausted by the exhaust device 53. The front pipe 531 of the air device 53 is affected by the high temperature; it is worth mentioning that the lower pipe 33, the upper pipe 32 and the descending pipe 321 can protect the electric motor 82 of the electric auxiliary steering device 8 to prevent the ground sand and gravel from hitting the electric motor 82 of the electric auxiliary steering device 8; from the top view of the vehicle body, the electric motor 82 is set toward the front of the vehicle body, and the motor 62 is set toward the rear of the vehicle body and partially overlaps with the electric motor 82.

The invention mainly consists in that the all-terrain vehicle 2 at least comprises a frame unit 3 and a power unit 5 arranged on the frame unit 3; the frame unit 3 at least comprises a pair of upper tubes 32 and lower tubes 33 on the left and right, the upper tubes 32 have a descending tube portion 321, the lower end of the descending tube portion 321 is connected to the lower tube 33; the frame unit 3 is provided with a steering mechanism 31, the steering mechanism 32 ... The steering mechanism 31 has a steering shaft 311, a steering handle 312 disposed at the upper end of the steering shaft 311, and a steering arm 313 disposed at the lower end of the steering shaft 311; the steering mechanism 31 is provided with an electric auxiliary steering device 8, and the electric auxiliary steering device 8 has a controller body 81 and an electric motor 82 that can control the operation of the controller body 81; the controller body The body 81 has an upper shaft 811 connected to the steering shaft 311 and a lower shaft 812 connected to the steering arm 313; when viewed from the top of the vehicle body, the electric motor 82 is arranged to face the front of the vehicle body and be slightly horizontal to the center line 2a of the vehicle body, and is located between the left and right pairs of upper side tubes 32; when viewed from the side of the vehicle body, the electric motor 82 is located between the steering shaft and the left and right pairs of upper side tubes 32. The rod 311 is within the area surrounded by the upper pipe 32 and the lower pipe 33, and is away from the upper pipe 32 adjacent to the ground; thereby, the electric motor 82 can be kept away from the exhaust device 53 of the power unit 5, thereby preventing the electric motor 82 from being affected by the high temperature of the front pipe portion 531 of the exhaust device 53, thereby improving the operating effect of the electric auxiliary steering device 8.

In summary, this invention can achieve the desired purpose and effect through the electric assisted steering device of the all-terrain vehicle mentioned above, and should have met the requirements of novelty, practicality and advancement. Therefore, we have filed an application for a new patent in accordance with the law. We pray that the examiner will give a detailed review and grant the new patent. I will be grateful.

2: All-terrain vehicle

3: Frame unit

31: Steering mechanism

311: Steering shaft

312: Turning handle

313: Steering arm

314: Turning lever

32: Upper side tube

321: Downcomer

33: Lower side tube

34: Front auxiliary tube set

35: Rear auxiliary tube set

36: Rear shelf

37: Connecting frame

5: Power unit

51: Cylinder block

511: Cylinder body

512: Cylinder head

52: Transmission box

53: Exhaust device

531: Front pipe section

54: Cooling air device

541: Air intake pipe

542: Air inlet

6: Anti-lock braking system

61: Controller

62: Motor

8: Electric assisted steering device

81: Controller body

811: Upper shaft

812: Lower axis

82: Electric motor

B: Braking device

C:Shock absorber

D:Front wheel transmission case

T: Fuel tank

FW:Front wheel

RW: rear wheel

Claims (6)

An electric assisted steering device for an all-terrain vehicle, the all-terrain vehicle at least comprises a frame unit and a power unit arranged on the frame unit; the frame unit at least comprises a pair of upper and lower side tubes, the upper side tubes having a descending tube portion, the lower end of the descending tube portion being connected to the lower side tube; the frame unit is provided with a steering mechanism, the steering mechanism comprising a steering shaft, a steering handle arranged at the upper end of the steering shaft, and a steering arm arranged at the lower end of the steering shaft; the steering mechanism is provided with an electric assisted steering device, the electric The power-assisted steering device has a controller body and an electric motor that can control the operation of the controller body; the controller body has an upper shaft connected to the steering shaft and a lower shaft connected to the steering arm; when viewed from the top of the vehicle body, the electric motor is arranged to face the front of the vehicle body and be slightly horizontal to the center line of the vehicle body, and is located between the left and right pairs of upper side tubes; when viewed from the side of the vehicle body, the electric motor is located in the area surrounded by the steering shaft, the upper side tube and the lower side tube, and is adjacent to the upper side tube. The electric assisted steering device of an all-terrain vehicle as described in claim 1, wherein the power unit has at least a cylinder block, the cylinder block has a cylinder body and a cylinder head; the electric motor of the electric assisted steering device is arranged to be slightly at the same height as the cylinder head. An electric assisted steering device for an all-terrain vehicle as described in claim 1, wherein the all-terrain vehicle is equipped with an anti-lock braking system below the electric assisted steering device, and the anti-lock braking system is located above the front wheel transmission case. An electric assisted steering device for an all-terrain vehicle as described in claim 3, wherein, when viewed from the side of the vehicle body, the anti-lock braking system partially overlaps the front wheel of the all-terrain vehicle. An electric assisted steering device for an all-terrain vehicle as described in claim 1, wherein the all-terrain vehicle has an anti-lock braking system; the electric assisted steering device has an electric motor; The anti-lock braking system has a motor; when viewed from the vehicle body, the motor of the anti-lock braking system extends toward the rear of the vehicle body and is slightly parallel to the center line of the vehicle body; the electric motor is arranged to face the front of the vehicle body and is slightly horizontal to the center line of the vehicle body; the electric motor is arranged toward the front of the vehicle body, and the motor is arranged toward the rear of the vehicle body and partially overlaps with the electric motor. The electric assisted steering device of an all-terrain vehicle as described in claim 1, wherein the power unit further has a transmission case, the transmission case is provided with a cooling air device; the cooling air device has an air inlet pipe and an air inlet provided at one end of the air inlet pipe; the air inlet pipe is arranged around the outer side of the upper pipe and connected to the transmission case at the other end opposite to the air inlet; when viewed from the side of the vehicle body, the electric assisted steering device and the air inlet pipe are partially overlapped.

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