WO2017210837A1

WO2017210837A1 - Electric balancing vehicle

Info

Publication number: WO2017210837A1
Application number: PCT/CN2016/084977
Authority: WO
Inventors: 尚艳燕
Original assignee: 尚艳燕
Priority date: 2016-06-06
Filing date: 2016-06-06
Publication date: 2017-12-14

Abstract

An electric balancing vehicle (1), comprising a body (2), wheels (3), a driving motor (4) used for driving the wheels (3), a power source (5) used for providing power, a circuit board, and a control component. The control component comprises a control rod (6) and a rotary shaft (7). The control rod (6) is perpendicular to the body (2), and comprises a handlebar portion (61) at an upper portion, a control portion (62) at a lower portion and a connecting rod (65) connecting the handlebar portion (61) and the control portion (62), the control portion (62) being provided with a connecting hole (64) near to the body (2). The rotary shaft (7) comprises a first section (71) fixedly connected to the connecting hole (64). The control component is split and comprises the control rod (6) and the rotary shaft (7), and during mounting, the rotary shaft (7) partially matches with another component for preferential mounting, and the control rod (6) is mounted on the balancing vehicle (1) at a late stage, thereby reducing the size of the balancing vehicle (1) during an early stage of the mounting, and making it easy to perform main body operations on the balancing vehicle (1). The matching of the control rod (6) and the rotary shaft (7) is simple, and the mounting is convenient.

Description

Electric balance car

[Technical Field]

The present invention relates to the field of balancing vehicles and, more particularly, to an electric balancing vehicle.

【Background technique】

Electric balance car, also known as body car, thinking car, its operation principle is mainly based on a basic principle called "dynamic stability", using the gyroscope and acceleration sensor inside the car body to detect the posture of the car body. Change and use the servo control system to accurately drive the motor to adjust accordingly to maintain the balance of the system.

The current electric balance car body is provided with an operating lever, and the user stands on the pedal platform of the electric balance car to operate the operating lever to realize the steering and the like. However, the current operating lever is not convenient to install.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide an electric balance car that is easy to install.

The object of the present invention is achieved by the following technical solutions: an electric balance vehicle including a vehicle body, a wheel, a drive motor for driving the wheel, a power source for supplying power, a circuit board, and a control unit, the power supply and A circuit board is disposed in the vehicle body, the control component includes a control rod and a rotating shaft, the control rod is disposed perpendicular to the vehicle body, and the control rod includes an upper armrest portion, a lower control portion, and a connecting armrest portion and a control a connecting rod of the portion, the control portion is provided with a connecting hole near the vehicle body, and the rotating shaft includes a first segment fixedly connected to the connecting hole.

Further, the control portion includes a second connecting portion fixedly connected to the connecting rod, the connecting hole is disposed in a section of the second connecting portion adjacent to the vehicle body, and the connecting hole is a square connecting hole, The first section of the rotating shaft is square, and the first section of the rotating shaft is embedded in the square connecting hole.

The control part of the control rod is provided with a square connecting hole, and the first section of the square of the rotating shaft cooperates with it. As long as the control rod rotates, the rotating shaft can be rotated immediately, which is very convenient and quick, the design is simple, the sensitivity is high, and no other screws such as screws are needed. the way.

Further, the first segment end portion is provided with an insertion hole, and the first segment side surface is provided with a first connection through hole and a second connection through hole, and the first connection through hole is electrically connected to the insertion hole.

The cover is inserted into the cover from the first connecting through hole, and the cover is inserted into the insertion hole, thereby fixing the control rod and the rotating shaft, and is also waterproof and dustproof, and the portion of the cover that is inserted into the insertion hole has two protrusions corresponding to the connection through hole, and can be To strengthen the fixed effect. The second connecting through hole of the two connecting through holes away from the end portion balances the air pressure between the space between the first portion of the rotating shaft and the connecting portion of the control rod and the external space, and is convenient for disassembly and assembly.

Further, the rotating shaft is provided with a second section fixedly connected to the first section, the second section is cylindrical, the second section is provided with a first bearing, and the first bearing is provided with a first A bearing seat, the first bearing seat being fixed at the bottom of the vehicle body.

Conducive to the rotation of the rotating shaft, stabilize the rotating shaft.

Further, a transition section is disposed between the first section and the second section of the rotating shaft.

The transition section allows a gap between the first section and the second section without affecting the rotation.

Further, the rotating shaft is provided with a cylindrical third section, and the third section is provided with a limiting structure for limiting the rotation angle of the rotating shaft.

Limiting the rotation angle of the rotating shaft to prevent danger caused by too large angle during the steering process, especially in the case of an unexpected situation, the excessive rotation angle causes danger, such as sudden child rushing out and turning at a large angle and operating out of control.

Further, the rotating shaft is provided with a cylindrical fourth section, a second bearing is disposed outside the fourth section, and a second bearing seat is disposed outside the second bearing, and the second bearing seat is fixed in the vehicle body bottom of.

Conducive to the rotation of the rotating shaft, stabilize the rotating shaft, especially after the first bearing is more stable.

Further, the rotating shaft further includes a cylindrical fifth section, and the fifth section end is provided with a fitting hole for assembling the rotation recognition means.

The assembly hole at the end of the fifth section accommodates the rotation recognition device for easy installation, convenient identification of the rotation angle, and convenient control.

Further, the side of the fifth section is further provided with a fixing hole that is electrically connected to the mounting hole.

Rotating the potentiometer shaft of the identification device into the assembly hole, and fixing the screw from the fixing hole from the side Potentiometer shaft.

Further, the rotating shaft is provided with a second segment, a third segment, a fourth segment and a fifth segment which are fixedly connected in sequence, and the second segment is fixedly connected with the first segment, and the first segment of the rotating shaft is a transition section is disposed between the second sections, a first bearing is disposed outside the second section, a first bearing seat is disposed outside the first bearing, and the first bearing seat is fixed at a bottom of the vehicle body, The third section is externally provided with a limiting structure for limiting the rotation angle of the rotating shaft, the fourth section is provided with a second bearing, and the second bearing is provided with a second bearing seat, and the second bearing seat is fixed to the vehicle. a bottom portion of the body, the fifth end portion is provided with a mounting hole for assembling the rotation recognition device, and a side portion of the fifth portion is further provided with a fixing hole that is electrically connected to the assembly hole, and the diameter of the second portion is larger than the diameter of the first portion. The diameter of the transition section is larger than the diameter of the first section is smaller than the diameter of the second section, the diameter of the third section is larger than the diameter of the second section and the fourth section, and the diameter of the fifth section is smaller than the diameter of the fourth section.

The rotating shaft is divided into five sections, and the corresponding matching device can be set in different sections to make the rotating shaft rotate stably, does not shift during the rotating process, the rotation angle recognition is more accurate, the rotation angle is limited, and the safety is improved.

The integrated control component needs to be installed preferentially, and then the control lever of the integrated control component affects the subsequent installation, so that the front of the balance car is too large to be convenient for subsequent installation. The present invention is separated from the control component, including the control lever and the rotating shaft. During the installation process, the rotating shaft part is preferably installed with other components, and the control rod is installed at the later stage of the balance car, which reduces the volume during the pre-installation period of the balance car, facilitates the operation of the balance car body, and the control portion is provided with a connecting hole close to the vehicle body. The rotating shaft includes a first section fixedly connected with the connecting hole, and the control rod and the rotating shaft are simply matched and convenient to install.

[Description of the Drawings]

1 is a schematic view of an electric balance vehicle according to an embodiment of the present invention;

2 is a schematic exploded view of an electric balance vehicle according to an embodiment of the present invention;

3 is a schematic diagram of a control lever of an electric balance vehicle according to an embodiment of the present invention;

4 is a schematic diagram of a rotating shaft of an electric balance vehicle and a matching structure thereof according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a rotating shaft of an electric balance vehicle according to an embodiment of the present invention; FIG.

6 is an illustration of an electric balance vehicle indicating a limit plate according to an embodiment of the present invention;

7 is a schematic diagram of a control floor of an electric balance vehicle according to an embodiment of the present invention.

Among them: 1, electric balance car, 2, car body, 21, upper cover, 22, bottom cover, 23, control bottom plate, 24, thick plate, 25, second screw hole, 26, support plate, 27, support pass Hole, 3, wheel, 4, drive motor, 5, power supply, 6, control lever, 61, armrest portion, 62, control portion, 63, second connecting portion, 64, square connecting hole, 65, connecting rod, 66, a first connecting portion, 67, a long straight portion, 68, a curved portion, a rotating shaft 71, a first portion, a 711, an insertion hole, 712, a first connecting through hole, 713, a second connecting through hole, 72, Second stage, 721, first bearing, 722, first bearing seat, 73, third section, 731, limit plate, 732, notch, 733, clamping plate, 734, spring, 735, first screw hole, 736, protruding restraining portion, 74, fourth segment, 741, second bearing, 742, second bearing seat, 75, fifth segment, 751, assembly hole, 752, fixing hole, 76, transition section, 8, potentiometer , 81, potentiometer shaft.

【detailed description】

The invention will now be further described with reference to the drawings and preferred embodiments.

As shown in FIGS. 1 to 7, an electric balance vehicle 1 includes a vehicle body 2, wheels 3, a drive motor 4 for driving the wheels 3, a power source 5 for supplying power, a circuit board, and a control lever 6, The power supply 5 and the circuit board are disposed in the vehicle body 2, the wheel 3 includes two wheels 3, two wheels 3 are respectively disposed on two sides of the vehicle body 2, and the driving motor 4 includes two driving motors 4. Two drive motors 4 are respectively disposed on both sides of the vehicle body 2, and the drive shaft of the drive motor 4 is caught in the axle of the wheel 3.

The power source 5 includes one or more batteries. If a plurality of batteries are evenly distributed in the vehicle body 2, for example, two batteries are respectively disposed on the left and right sides or the upper and lower sides of the vehicle body 2, for example, three batteries are arranged in a triangle shape. In the vehicle body 2, for example, four batteries are respectively disposed in the upper left, upper right, lower left, and lower right places in the vehicle body 2. The battery uses a battery such as a lithium battery, and the batteries are relatively heavy, and the plurality of batteries are equally favorable for the vehicle. Body 2 is balanced in weight, stable in center of gravity and easy to control.

The control lever 6 is disposed on the front side of the vehicle body 2 in one direction with the moving direction. The control lever 6 is perpendicular to the vehicle body 2. The control lever 6 includes an upper armrest portion 61, a lower control portion 62, and a connecting rod 65 that connects the armrest portion 61 and the control portion 62.

The armrest portion 61 is used for the user's two-hand control, and includes a first connecting portion 66 fixedly connected to the connecting rod 65. The first connecting portion 66 is respectively provided with a first handle and a second handle for the user's hand, the first handle and The second handle is provided with an anti-slip pattern. The first connecting portion 66 is curved and curved outward. The first handle and the second handle are disposed at an outwardly curved position of the curved first connecting portion 66, that is, the first handle and the second handle are closer to the connecting rod 65. In addition, it is convenient for users to hold. The first handle and the second handle are cylindrical, the first connecting portion 66 is elongated, and the first connecting portion 66 connects the first handle and the second handle portion into a cylindrical shape to strengthen the connection strength.

The connecting rod 65 includes a long straight portion 67 that connects the armrest portion 61, and a curved portion 68 that connects the control portion 62, which is bent toward the front side of the vehicle body 2 and then vertically down. Convenient for user control, the armrest portion 61 of the lever 6 maintains a convenient distance for the user to control the grip. The connecting rod 65 can be used with two parallel rods to enhance the strength.

The control portion 62 includes a second connecting portion 63 fixedly coupled to the connecting rod 65, and the second connecting portion 63 passes through the front side of the vehicle body 2. The second connecting portion 63 is cylindrical, and may of course have other shapes such as a square or the like. The second connecting portion 63 is internally divided into two sections, and a section of the vehicle body 2 is provided with a square connecting hole 64 and the other section is a hollow section.

A rotating shaft 7 is embedded in the square connecting hole 64. The rotating shaft 7 includes a square first segment 71 embedded in the square connecting hole 64 of the second connecting portion 63. The end portion of the square first segment 71 is provided with an inserting hole 711, and the square first The first connecting through hole 712 and the second connecting through hole 713 are disposed on the side of the segment 71, and the first connecting through hole 712 near the end of the two connecting through holes is electrically connected to the embedded hole 711. The cover is inserted into the insertion hole 711, and the end of the cover covers the hollow portion of the connection portion, and the insertion hole 711 functions to fix the cover, and the cover can function to protect the rotating shaft 7 from water. The portion of the cover that is snapped into the insertion hole 711 is provided with two protrusions corresponding to the connection through hole, which can enhance the fixing effect. The second connecting through hole 713 of the two connecting through holes away from the end portion balances the air pressure between the space between the first segment 71 of the rotating shaft 7 and the connecting portion of the control rod 6 and the external space, and is convenient for disassembly and assembly.

The rotating shaft 7 further includes a cylindrical second section 72. The second section 72 is provided with a first bearing 721. The first bearing 721 is disposed in the first bearing seat 722, and the first bearing seat 722 is fixed in the vehicle body 2. bottom.

The rotating shaft 7 further includes a cylindrical third section 73 having a larger diameter than the second section 72, the third section 73 being external The portion is provided with a limiting structure to limit the rotation angle of the third segment 73, that is, the entire rotating shaft 7. Limiting the rotation angle of the rotating shaft 7 prevents danger caused by too large angle during the steering process, especially in the case of an unexpected situation, the excessive rotation angle causes danger, such as sudden child rushing out and turning at a large angle and operating out of control.

The bottom of the third section 73 of the rotating shaft 7 is provided with a notch 732. The cylindrical bottom of the third section 73 is partially removed to form the notch 732. The top of the notch 732 is flat, and the limiting structure includes a limit disposed under the third segment 73. The plate 731 and the limiting plate 731 are inserted into the notch 732 in the middle. Preferably, the thickness of the limiting plate 731 is smaller than the height of the notch 732, that is, the bottom surface of the limiting plate 731 is lower than the bottom surface of the third segment 73. The two ends of the limiting plate 731 extend beyond the third segment 73. Two clamping plates 733 are vertically disposed on the limiting plate 731. The two clamping plates 733 clamp the rotating shaft 7 from both sides of the third segment 73 of the rotating shaft 7. The two sides of the limiting plate 731 are matched with the notch 732, that is, the width of the limiting plate 731 is the same as or similar to the width of the notch 732, and the width of the limiting plate 731 is slightly larger than the width of the notch 732. The limiting plate 731 is fixedly connected with the rotating shaft 7 and the limiting plate is fixed. The width of the 731 is slightly smaller than the width of the notch 732 to facilitate the insertion of the limiting plate 731 into the notch 732. The limiting plate 731 and the bottom of the vehicle body 2 are provided with two springs 734, and two springs 734 are respectively disposed on both sides of the rotating shaft 7. The rotating shaft 7 rotates, and the notch 732 of the third section 73 of the rotating shaft 7 drives the limiting plate 731 to rotate, and the limiting plate 731 rotates the pressing spring 734. The spring 734 compresses and generates an elastic force to effectively limit the rotation angle of the rotating shaft 7, and provides a resilience force. The rotating shaft 7 is reset, and the clamping plate 733 can prevent the limiting plate 731 from being displaced and provide pressure to the limiting plate 731, which can give the spring 734 a greater pressure and generate a larger restoring force.

It is also possible to provide a control through hole in the middle of the third segment 73 of the rotating shaft 7. The limiting structure includes a limiting plate 731 passing through the control through hole, the two ends of the limiting plate 731 extend beyond the third segment 73, and the limiting plate 731 The side is matched with the control through hole, that is, the width of the limiting plate 731 is the same as or similar to the width of the control through hole, and the width of the limiting plate 731 is slightly larger than the width of the control through hole, and the limiting plate 731 is fixedly connected with the rotating shaft 7, and the width of the limiting plate 731 is fixed. Slightly smaller than the width of the control through hole, the limit plate 731 is inserted into the notch 732. The limiting structure further includes two springs 734 disposed between the limiting plate 731 and the bottom of the vehicle body 2, and the two springs 734 are respectively disposed on both sides of the rotating shaft 7. The rotating shaft 7 rotates, the third section 73 of the rotating shaft 7 controls the through hole to drive the limiting plate 731 to rotate, the limiting plate 731 rotates the pressing spring 734, and the spring 734 compresses and generates the elastic force to effectively limit the rotation angle of the rotating shaft 7, and provides the resilience. The rotating shaft 7 is reset.

A fixing structure of the fixing limiting plate 731 and the spring 734 may be added between the limiting plate 731 and the spring 734. The fixing structure includes a first screw hole 735 and a screw on the limiting plate 731, and one end of the screw and the first screw The hole 735 is fixed and the other end projects into the spring 734.

The bottom surface of the limiting plate 731 is provided with a spring 734 limiting portion. The spring 734 limiting portion may be a recess provided on the bottom surface of the limiting plate 731. One end of the spring 734 is inserted into the recess, and the recess may be a circular recess. The end of the spring 734 can also be an annular recess, and the annular end of the end of the spring 734 snaps into the annular recess to better grip the end of the spring 734. At the same time, the circular recess or the annular recess may be a whole circular or annular shape, or may be partially circular or annular, and the spring 734 partially exposes the limiting plate 731. The end portion of the recess protrudes inwardly to form an inner protrusion that catches the end of the spring 734 to enhance the fixing effect.

The protrusion 736 of the spring 734 may also be a protrusion limiting portion 736 provided by the limiting plate 731. The protruding limiting portion 736 is a circular protruding limiting portion 736 that catches the end of the spring 734 and catches the end of the spring 734. The protruding limiting portion 736 can also An annular projection restricting portion 736 is caught at the end of the spring 734, and the annular end portion of the end of the spring 734 is caught in the annular recess to better catch the end of the spring 734. At the same time, the circular protrusion restricting portion 736 or the annular protruding restricting portion 736 may be a whole circular or annular shape, or may be partially circular or annular, and the spring 734 partially exposes the limiting plate 731. The end portion of the protruding restricting portion 736 protrudes inwardly to form an inner protruding portion that catches the end portion of the spring 734 to enhance the fixing effect.

The bottom of the vehicle body 2 is also provided with a spring 734 restriction similar to that described above.

The rotating shaft 7 further includes a cylindrical fourth section 74. The fourth section 74 is provided with a second bearing 741. The second bearing 741 is disposed in the second bearing housing 742, and the second bearing housing 742 is fixed in the vehicle body 2. bottom. Preferably, the fourth section 74 has the same diameter as the second section 72. The first bearing 721 and the second bearing 741 have the same bearing, and the first bearing housing 722 and the second bearing housing 742 have the same bearing housing.

The rotating shaft 7 also includes a cylindrical fifth section 75 that is smaller in diameter than the fourth section 74. The fifth segment 75 is provided with a rotation recognition device potentiometer 8 for identifying the angle of rotation. The end of the fifth segment 75 is provided with a mounting hole 751, and the rotating shaft of the potentiometer 8 is snapped into the mounting hole 751. The mounting hole 751 is fixedly connected with the potentiometer shaft 81, and the mounting hole 751 can be set to match the shape of the potentiometer shaft 81, such as a potential. The rotating shaft 81 is in the shape of a gear, and the mounting hole 751 is provided in a gear shape matched thereto, for example, the potentiometer shaft 81 is circular, and the mounting hole is The 751 is also set to a circular shape but the aperture is slightly smaller than the potentiometer shaft 81 to form an interference fit. Further, a fixing hole 752 which is electrically connected to the mounting hole 751 is further disposed on the side of the fifth segment 75. The potentiometer rotating shaft 81 extends into the mounting hole 751, and the potentiometer rotating shaft 81 is fixed from the side in the fixing hole 752.

The fifth segment 75 can also be provided with a non-contact rotation sensor of the rotation recognition device. The rotation sensor is a non-contact angle sensor. Two sensors are built in to correct each other, mainly to correct each other. When the hand is turned to turn the handlebar, the steering angle sensor transmits the signal to the main control board in the board to control the direction of travel of the entire vehicle. The rotation sensor is disposed on a small circuit board which is disposed on the end of the fifth section 75 of the rotating shaft 7, and may also be disposed in the fifth section 75. The non-contact angle sensor has a long service life, close to infinity, and it does not have contact wear.

The vehicle body 2 includes an upper cover 21 and a bottom cover 22, and the bottom cover 22 is provided with a spring 734 restricting portion corresponding to the spring 734. The control base plate 23 may be disposed in the vehicle body 2. The control bottom portion is disposed below the rotating shaft 7 and the spring 734, and is disposed above the bottom cover 22 of the vehicle body 2. The control bottom plate 23 is fixed on the bottom cover 22 of the vehicle body 2, and the bottom plate is controlled. The spring 734 is provided with a spring 734 restricting portion. The bottom cover 22 or the control base plate 23 is provided with a thickening plate 24 corresponding to the restriction portion of the spring 734, a notch is provided in the thickening plate 24, or a protruding restriction portion 736 is provided on the thickening plate 24 to improve the effect of the fixing spring 734. The bottom cover 22 or the control bottom plate 23 may be provided with a second bolt hole of the fixing spring 734 corresponding to the spring 734. One end of the screw is fixed to the second screw hole 25 and the other end is caught in the spring 734 to prevent the spring 734 from moving.

The control base plate 23 is also fixedly coupled to the first bearing housing 722 and the second bearing housing 742 by bolting or the like. One end of the control bottom plate 23 remote from the control rod 6 is provided with a support plate 26, which vertically controls the bottom plate 23. A support through hole 27 is provided on the support plate 26. The support through hole 27 can also be used to support the potentiometer 8. The support plate 26 is also used to support a small circuit board equipped with a non-contact angle sensor. The overall stability of the rotating mechanism is improved, the stability of the rotating shaft 7 is improved, and the accuracy of the rotation is improved.

The first segment 71, the second segment 72, the third segment 73, the fourth segment 74 and the fifth segment 75 of the rotating shaft 7 are sequentially connected, and may be integrally formed on the same axial line or may be separately processed and then spliced and fixed. to make. There is also a transition section 76 between the first section 71 and the second section 72, the transition section 76 having a diameter between the first section 71 diameter Between the diameter of the second section 72, the first section 71 snaps into the control rod 6, the second section 72 snaps into the first bearing 721, and the transition section 76 is suspended. The transition section 76 allows a gap to exist between the first section 71 and the second section 72, that is, there is a gap between the lever 6 and the first bearing 721 without affecting the rotation.

The rotating shaft 7 first passes through the first bearing housing 722 and the second bearing housing 742, and then the first bearing 721 and the second bearing 741 are engaged from both ends of the rotating shaft 7, and the second section 72 and the fourth of the rotating shaft 7 The segment 74 cooperates, the third segment 73 of the rotating shaft 7 has a larger diameter than the second segment 72 and the third segment 73, and the first bearing 721 and the second bearing 741 are thirdly constrained from both sides of the third segment 73 of the rotating shaft 7. The axial and radial movement of the segment 73, while also limiting the axial and radial movement of the rotating shaft 7, allows the rotating shaft 7 to rotate under the constraints of the first bearing 721 and the second bearing 741 without offset.

The second section 72, the third section 73, the fourth section 74 of the rotating shaft 7 described above, and the first bearing 721, the first bearing seat 722, the spring 734, the limiting plate 731, the second bearing 741 and the fourth The bearing seat can function well to support the rotating shaft 7, and the supporting bottom plate 23 can better fix the supporting rotating shaft 7, which has a good stability effect during the rotation of the rotating shaft 7, and obtains a good rotation. Precision. It is of course also possible to omit the fourth section 74 of the rotating shaft 7, the second bearing 741 and the second bearing seat 742 that cooperate therewith, and also provide a good effect of fixing the supporting rotating shaft 7.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims

An electric balance vehicle comprising: a vehicle body, a wheel, a drive motor for driving the wheel, a power source for supplying power, a circuit board, and a control unit, wherein the power source and the circuit board are disposed in the vehicle body, The control member includes a control lever and a rotation shaft, the control lever being disposed perpendicular to the vehicle body, the control lever including an upper armrest portion, a lower control portion, and a connecting rod connecting the armrest portion and the control portion, the control portion A connecting hole is disposed adjacent to the vehicle body, and the rotating shaft includes a first segment fixedly connected to the connecting hole.
The electric balance vehicle according to claim 1, wherein the control portion includes a second connecting portion fixedly coupled to the connecting rod, and the connecting hole is disposed at a section of the second connecting portion adjacent to the vehicle body The connecting hole is a square connecting hole, the first section of the rotating shaft is square, and the first section of the rotating shaft is embedded in the square connecting hole.
The electric balance vehicle according to claim 2, wherein the first end portion is provided with an insertion hole, and the first side surface is provided with a first connection through hole and a second connection through hole, A connecting through hole is electrically connected to the embedded hole.
An electric balance vehicle according to claim 2, wherein said rotating shaft is provided with a second section fixedly coupled to the first section, said second section being cylindrical, said second section of peripheral There is a first bearing, and a first bearing seat is disposed outside the first bearing, and the first bearing seat is fixed at a bottom of the vehicle body.
An electric balance vehicle according to claim 4, wherein a transition section is provided between the first section and the second section of the rotating shaft.
The electric balance vehicle according to any one of claims 1 to 4, wherein the rotating shaft is provided with a cylindrical third section, and the third section is provided with a limiting structure for limiting the rotation angle of the rotating shaft. .
The electric balance vehicle according to claim 6, wherein the rotating shaft is provided with a cylindrical fourth section, the fourth section is provided with a second bearing, and the second bearing is provided with a second The second bearing seat is fixed to the bottom of the vehicle body.
An electric balance vehicle according to claim 6, wherein the rotating shaft further comprises a circle In the fifth section of the cylindrical shape, the end of the fifth section is provided with an assembly hole in which the rotation recognition means is assembled.
The electric balance vehicle according to claim 8, wherein the side of the fifth section is further provided with a fixing hole that is electrically connected to the fitting hole.
An electric balance vehicle according to claim 2, wherein said rotating shaft is provided with a second section, a third section, a fourth section and a fifth section which are sequentially fixedly connected, said second section and said a fixed connection, a transition section is disposed between the first section and the second section of the rotating shaft, a first bearing is disposed outside the second section, and a first bearing seat is disposed outside the first bearing The first bearing seat is fixed at the bottom of the vehicle body, and the third portion is provided with a limiting structure for limiting the rotation angle of the rotating shaft, and the fourth portion is provided with a second bearing, and the second bearing is provided with a second bearing a second bearing seat, the second bearing seat is fixed at a bottom of the vehicle body, the fifth end portion is provided with a mounting hole for assembling the rotation recognition device, and the fifth side surface is further provided with a fixing hole that is electrically connected to the assembly hole The diameter of the second section is larger than the diameter of the first section, the diameter of the transition section is larger than the diameter of the first section is smaller than the diameter of the second section, and the diameter of the third section is larger than the diameter of the second section and the fourth section, the fifth section The diameter is smaller than the diameter of the fourth segment.