Swing car power supply device with steering wheel capable of rotating by 360 degrees

Abstract

The utility model discloses a swing car power supply device with a steering wheel capable of rotating by 360 degrees, and belongs to the technical field of swing cars. The device is mainly composed of a motor, a steering wheel rotation sensor, a main control circuit board, a power supply module, a first bearing, a second bearing, an insulation sleeve, a steering pipe and the like. The photoelectric sensor generates an on-off alternating rotation signal through the light blocking piece arranged in a surrounding mode when the steering wheel rotates, the main control circuit board controls the on-off switch according to the signal, and then on-off control over the motor is achieved. And the power supply module supplies power to the motor and the main control circuit board by utilizing the bearing and the steering tube to conduct electricity through a specific wire and a conducting strip. The device solves the problems that a traditional swing car is poor in driving control reliability, insufficient in environmental adaptability and the like, and has the beneficial effects of improving safety, enhancing reliability, optimizing power supply stability, simplifying structure, promoting industry technical progress and the like.

Description

Technical Field

[0001] This utility model belongs to the field of scooter technology, specifically relating to a power supply device for a scooter with a steering wheel that can rotate 360 ​​degrees. Background Technology

[0002] In the children's toy industry, hoverboards are a popular category of toys, offering a unique driving experience that helps children develop their balance and control skills while providing them with a wealth of fun. However, existing hoverboards suffer from numerous unresolved issues regarding drive control and power supply, severely impacting product safety, reliability, and user experience.

[0003] Disadvantages of traditional drive control methods:

[0004] Poor reliability of contact-based connections: Currently, most hoverboards use foot-operated contact-based drive control. During frequent play by children, the foot switch and the conductive copper plate frequently come into contact and separate. Combined with the vibrations from the vehicle's movement, this makes them highly susceptible to issues such as loose connections, jamming, or deformation of the copper plate. A loose connection interrupts the motor control signal, causing a sudden loss of power. Jamming or deformation can lead to abnormal signal conduction, causing sudden acceleration or uncontrolled movement. For example, when a child rapidly presses the foot switch, the vibration and high frequency of operation can easily cause the conductive copper plate to shift and deform, resulting in abnormal vehicle movement. This unstable drive control significantly increases the safety risks for children during play, potentially leading to falls and injuries.

[0005] Poor environmental adaptability: Traditional contact-type drive structures have extremely limited protective measures, typically involving only simple encapsulation, making them vulnerable to environmental factors such as dust and moisture. In real-world use, scooters are frequently used in various indoor and outdoor environments, where dust easily accumulates on the contact surfaces, hindering normal current conduction. Furthermore, in humid environments, such as when playing on damp ground or accidentally spilling water, moisture seeps into the contacts, causing problems like short circuits, oxidation, and rust, ultimately leading to a short circuit. A short circuit not only damages the vehicle's electrical system but can also pose a risk of electric shock to children while the vehicle is in operation, seriously threatening their safety.

[0006] Inadequacies of existing power supply technologies:

[0007] Poor power supply stability: Most existing power supply systems for hoverboards rely on traditional battery connection methods and simple circuit designs. During vehicle operation, especially when traversing bumpy roads or experiencing collisions, battery connections are prone to loosening, leading to unstable power supply. This not only affects the normal operation of the motor, causing inconsistent power during vehicle operation, but may also damage the battery and shorten its lifespan.

[0008] Complex structure and low space utilization: Traditional twist cars often separate steering wheel control from motor drive, resulting in a complex internal structure with numerous parts. This complex structure not only increases production costs but also occupies a significant amount of interior space, making the vehicle's layout less compact and efficient. For children's toys, a complex structure means a higher risk of malfunction; if a component fails, repairs are more difficult and potentially costly, leading to premature toy failure. Furthermore, the complex structure hinders children's operation and understanding of the vehicle, reducing the enjoyment of playing with it.

[0009] Limitations of existing improvement measures:

[0010] To address these issues, some manufacturers have implemented a series of improvements. For example, they have increased the thickness and strength of the conductive copper sheets to reduce the probability of deformation; improved the sealing design of the casing to reduce dust and moisture intrusion; and optimized the battery connection structure to improve power supply stability. However, these improvements are merely partial optimizations based on traditional technologies and fail to fundamentally solve the problems. While increasing the thickness and strength of the copper sheets reduces deformation to some extent, it cannot prevent issues like loose connections and jamming; improving the casing seal only delays dust and moisture intrusion, not completely eliminates it; and optimizing the battery connection structure is insufficient to withstand the effects of severe vibrations and collisions. Furthermore, the separate control structure remains, and the problems of complex overall vehicle structure and low space utilization have not been substantially improved.

[0011] In summary, existing hoverboards have numerous shortcomings in drive control and power supply, severely restricting product quality and safety. Therefore, developing a new and reliable hoverboard drive control and power supply technology is urgently needed to meet the children's toy market's demand for safe, stable, and easy-to-use hoverboard products. Utility Model Content

[0012] In view of this, in order to overcome the shortcomings of the existing technology, this utility model provides a power supply device for a 360-degree rotatable steering wheel for a scooter. It aims to solve the problems of drive control and power supply in traditional scooters. By utilizing bearing and steering tube conductive technology, it abandons the traditional foot-operated contact drive, improving safety; it constructs a stable power supply and signal transmission path, reducing faults and enhancing reliability; it improves the power supply system, ensuring stable motor operation and optimizing power supply stability; it achieves integrated control, simplifying the structure, improving space utilization, and enhancing fun; and it simultaneously promotes technological innovation in the children's toy industry, meeting the market demand for high-quality scooters.

[0013] To achieve the above objectives, the present invention adopts the following solution: a power supply device for a 360-degree rotatable steering wheel for a hovercraft, comprising...

[0014] The electric motor is used to drive the balance bike.

[0015] The steering wheel rotation sensor is used to monitor the rotation of the steering wheel and transmit the corresponding rotation signal to the main control circuit board.

[0016] The main control circuit board is equipped with an on / off switch. The main control circuit board controls the on / off switch to be turned on or off according to the received rotation signal, so as to realize the on / off control of the motor.

[0017] The power supply module stores and provides electrical energy to the motor and the main control circuit board.

[0018] Furthermore, it also includes a first bearing, a second bearing, an insulating sleeve, and a hollow steering tube, wherein...

[0019] The main control circuit board is located near one end of the steering tube, in the area where the steering wheel is mounted; the motor is located at the other end of the steering tube, and the steering tube, the front fork, and the motor are integrated into a synchronously rotating whole by using the front fork that moves with the steering tube; the first bearing sleeve and the second bearing sleeve are mounted on the steering tube, and the first bearing and the second bearing are electrically isolated by using an insulating sleeve.

[0020] Furthermore, it also includes a first positive electrode wire, a second positive electrode wire, a first positive electrode conductive sheet, and a second positive electrode conductive sheet;

[0021] The first positive conductive plate is electrically connected to the outer ring of the second bearing; the second positive conductive plate is electrically connected to the inner ring of the second bearing.

[0022] One end of the first positive wire is connected to the positive terminal of the power supply module; the other end of the first positive wire is electrically connected to the first positive conductive plate; one end of the second positive wire is electrically connected to the second positive conductive plate, and the other end of the second positive wire is connected to the positive terminal of the motor.

[0023] Furthermore, it also includes the first negative electrode wire, the steering pipe, and the second negative electrode wire;

[0024] One end of the first negative wire is connected to the negative terminal of the power supply module; the other end of the first negative wire is electrically connected to the outer ring of the first bearing, and the inner ring of the first bearing is electrically connected to the steering tube, using the steering tube as a power supply conductor; one end of the second negative wire is electrically connected to one end of the steering tube, and the other end of the second negative wire is connected to the negative input terminal of the main control circuit board.

[0025] Furthermore, it also includes a third positive wire, one end of which is electrically connected to the second positive wire, and the other end of which extends upward from the bottom of the steering tube along the internal hollow area and then connects to the positive input terminal of the main control circuit board.

[0026] Furthermore, it also includes a signal line, which is a power supply wire used to control the on / off operation of the motor; one end of the signal line is electrically connected to the on / off switch in the main control circuit board, and the other end of the signal line is electrically connected to the negative terminal of the motor.

[0027] The power supply device for the scooter involved in this utility model, through innovative designs such as the use of bearings and steering tubes for electrical conduction, has many outstanding beneficial effects:

[0028] Significantly enhanced safety: Completely eliminates the problems of loose connections, jamming, and copper plate deformation caused by frequent contact in traditional foot-operated contact drive systems. The risk of abnormal motor control signals caused by these problems, leading to sudden acceleration, deceleration, or power interruption, is eliminated. Utilizing bearings and steering tubes for conductivity ensures stable and reliable signal transmission, effectively preventing vehicle loss of control and greatly reducing the likelihood of children falling and getting injured due to vehicle malfunctions during play, providing children with a safe and reliable play environment.

[0029] Significantly enhanced reliability: The bearings and steering tubes participate in electrical conductivity, creating a robust power and signal transmission path. Compared to traditional solutions, this design is more resistant to interference from factors such as vibration, dust, and moisture. Dust is less likely to affect its conductivity, and moisture is less likely to cause short circuits, reducing the frequency of circuit failures. This allows the hoverboard to operate stably in various common usage environments, improving product reliability and durability, reducing maintenance costs and frequency, and extending the hoverboard's lifespan.

[0030] Optimized power supply stability: Leveraging the unique electrical conductivity of bearings and steering tubes, combined with a meticulously designed circuit, power supply stability is significantly improved. Even when the scooter bumps along uneven surfaces or is subjected to collisions during play, the power supply system remains stable. A secure battery connection ensures a continuous and stable power supply to the motor, preventing inconsistent power and providing children with a smooth driving experience.

[0031] Simplified Structure and Improved Space Utilization: The integrated control of steering wheel steering and motor drive, achieved through the conductive connection of bearings and steering tubes, greatly simplifies the internal structure of the scooter. This reduces numerous complex wiring connections and redundant control components, lowering structural complexity and redundancy. Interior space is utilized more efficiently, resulting in a more compact layout. This not only reduces production costs but also makes the vehicle easier to manufacture and maintain, while also facilitating child operation and enhancing the fun of playing.

[0032] Contributing to Technological Advancement in the Industry: This utility model introduces entirely new design concepts and methods to the field of hoverboard technology, providing a reference for technological innovation in the industry. Its innovative conductivity and control methods drive the development of drive control and power supply technologies in the children's toy industry, helping to improve the overall product quality and safety, meet market demand for high-quality hoverboard products, and promote technological upgrading and development in the children's toy industry. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is one of the structural schematic diagrams of the power supply device for the scooter according to this utility model;

[0035] Figure 2 This is the second schematic diagram of the power supply device for the scooter according to this utility model;

[0036] Figure 3 This is the third schematic diagram of the power supply device for the scooter according to this utility model;

[0037] Figure 4 This is a schematic diagram of the structure of this utility model with an insulating sleeve.

[0038] In the diagram: 1. Motor; 2. Steering wheel rotation sensor; 3. Main control circuit board; 4. Power supply module; 5. First bearing; 6. Second bearing; 7. Insulating sleeve; 8. Steering tube; 9. First positive wire; 10. Second positive wire; 11. Third positive wire; 12. First positive conductive plate; 13. Second positive conductive plate; 14. First negative wire; 15. Second negative wire; 16. Signal line; 17. Light shield; 18. Negative conductive plate; 19. Housing; 20. Third bearing; 21. Receiving cavity. Detailed Implementation

[0039] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0040] like Figure 1 and Figure 3 As shown, this embodiment provides a power supply device for a scooter with a steering wheel that can rotate 360 ​​degrees, including...

[0041] Motor 1 is used to drive the balance bike.

[0042] Steering wheel rotation sensor 2 is used to monitor the rotation of the steering wheel and transmit the corresponding rotation signal to the main control circuit board 3;

[0043] The main control circuit board 3 is equipped with an on / off switch. The main control circuit board 3 controls the on / off switch to be turned on or off according to the received rotation signal, so as to realize the on / off control of the motor 1.

[0044] Power supply module 4 is used to store and provide electrical energy to motor 1 and main control circuit board 3;

[0045] In a preferred embodiment, this embodiment further includes a first bearing 5, a second bearing 6, an insulating sleeve 7, and a hollow steering tube 8, wherein...

[0046] The main control circuit board 3 is located near one end of the steering tube 8, in the area where the steering wheel is installed; the motor 1 is located at the other end of the steering tube 8, and the steering tube 8, the front fork and the motor 1 are integrated into a synchronously rotating whole by using the front fork that moves with the steering tube 8; the first bearing 5 and the second bearing 6 are sleeved on the steering tube 8, and the electrical isolation between the first bearing 5 and the second bearing 6 is achieved by using the insulating sleeve 7.

[0047] In a preferred embodiment, this embodiment also includes a first positive electrode wire 9, a second positive electrode wire 10, a first positive electrode conductive sheet 12, and a second positive electrode conductive sheet 13;

[0048] The first positive electrode conductive sheet 12 is electrically connected to the outer ring of the second bearing 6; the second positive electrode conductive sheet 13 is electrically connected to the inner ring of the second bearing 6.

[0049] One end of the first positive conductor 9 is connected to the positive terminal of the power supply module 4; the other end of the first positive conductor 9 is electrically connected to the first positive conductive sheet 12; one end of the second positive conductor 10 is electrically connected to the second positive conductive sheet 13, and the other end of the second positive conductor 10 is connected to the positive terminal of the motor 1.

[0050] In a preferred embodiment, this embodiment also includes a first negative electrode wire 14, a steering pipe 8, and a second negative electrode wire 15;

[0051] One end of the first negative wire 14 is connected to the negative terminal of the power supply module 4; the other end of the first negative wire 14 is electrically connected to the outer ring of the first bearing 5, and the inner ring of the first bearing 5 is electrically connected to the steering tube 8, using the steering tube 8 as a power supply conductor; one end of the second negative wire 15 is electrically connected to one end of the steering tube 8, and the other end of the second negative wire 15 is connected to the negative input terminal of the main control circuit board 3.

[0052] In a preferred embodiment, this embodiment also includes a third positive wire 11, one end of which is electrically connected to the second positive wire 10, and the other end of which extends upward from the bottom of the steering tube 8 along the internal hollow region and is connected to the positive input terminal of the main control circuit board.

[0053] In a preferred embodiment, this embodiment also includes a signal line 16, which is a power supply wire used to control the on / off operation of the motor 1; one end of the signal line 16 is electrically connected to the on / off switch in the main control circuit board 3, and the other end of the signal line 16 is electrically connected to the negative terminal of the motor 1.

[0054] Working principle:

[0055] When a child turns the steering wheel of the scooter, the rotation of the steering wheel causes the photoelectric sensor connected to it to rotate as well. Because light-blocking plates 17 are arranged at intervals around the rotation path of the photoelectric sensor, during the rotation, the light-blocking plates will alternately block and move away from the light path of the photoelectric sensor.

[0056] When the light-blocking plate obstructs the light path of the photoelectric sensor, the sensor receives no light, and its internal photoelectric conversion element stops generating electrical signal changes, outputting a signal representing an open state. When the light-blocking plate leaves the light path, allowing light to reach the photoelectric sensor, the sensor generates electrical signal changes and outputs a signal representing a closed state. This cycle repeats, and as the steering wheel continues to rotate, the photoelectric sensor outputs a series of on-off rotation signals.

[0057] These rotation signals are transmitted to the main control circuit board 3. After receiving the signals, the main control circuit board 3 analyzes and processes them according to the preset program logic. Since the main control circuit board 3 is equipped with an on / off switch, it controls the on / off state of the switch according to the rotation signals. When it is determined that motor 1 needs to be started, the main control circuit board 3 controls the on / off switch to be on; otherwise, it controls it to be off, thereby realizing the on / off control of motor 1 and thus determining whether the motor of the scooter runs.

[0058] like Figure 3As shown, an outer casing 19 is also provided, which has a receiving cavity 21 and is sleeved on the third bearing 20. Inside the receiving cavity 21, a ring of light-blocking plates 17 are arranged at intervals, with several light-blocking plates 17 arranged at equal intervals. The light-blocking plates 17 are fixed. The steering wheel rotation sensor 2 rotates synchronously with the steering wheel. When the steering wheel rotates, it synchronously drives the steering wheel rotation sensor 2 to rotate in the circumferential direction. In this embodiment, a photoelectric sensor is used. The photoelectric sensor itself has a recessed notch; when the steering wheel drives the photoelectric sensor to rotate, the photoelectric sensor rotates in the circumferential direction, and the light-blocking plates 17 will alternately block and move away from the notch position of the photoelectric sensor, that is, the light-blocking plates 17 will alternately block and move away from the light path of the steering wheel rotation sensor 2. This forms a rotation signal.

[0059] The power supply module 4 plays a crucial role in energy supply throughout the process. It stores electrical energy and continuously provides stable power to the motor 1 and the main control circuit board 3. Its power supply process is achieved through a series of wires and conductive components.

[0060] From the perspective of positive power supply, the positive terminal of the power supply module 4 is connected to the first positive conductive plate 12 via the first positive wire 9. The first positive conductive plate 12 is electrically connected to the outer ring of the second bearing 6, and the second positive conductive plate 13 is electrically connected to the inner ring of the second bearing 6. One end of the second positive wire 10 is connected to the second positive conductive plate 13, and the other end is connected to the positive terminal of the motor 1. In this way, the current starts from the positive terminal of the power supply module 4, passes through the first positive wire 9, the first positive conductive plate 12, the outer and inner rings of the second bearing 6, the second positive conductive plate 13, and finally reaches the positive terminal of the motor 1 through the second positive wire 10. At the same time, the second positive wire 10 is also connected to the positive input terminal of the main control circuit board 3 via the third positive wire 11 to supply power to it. The third positive wire 11 extends upward from the bottom of the steering tube 8 along the internal hollow area, cleverly utilizing the structure of the steering tube 8.

[0061] Regarding the negative power supply, the negative terminal of the power supply module 4 is connected to one end of the first negative wire 14. In this embodiment, a negative conductive sheet 18 is also included. The negative conductive sheet 18 is electrically connected to the first bearing. The other end of the first negative wire 14 is connected to the negative conductive sheet 18. The negative conductive sheet 18 is electrically connected to the outer ring of the first bearing 5. The bearing itself is conductive. The inner ring of the first bearing 5 is electrically connected to the steering tube 8. The steering tube 8 acts as a power supply conductor, conducting the current to the position where the second negative wire 15 is connected. One end of the second negative wire 15 is connected to the steering tube 8, and the other end is connected to the negative input terminal of the main control circuit board 3, completing the negative circuit.

[0062] In the control of motor 1, when the main control circuit board 3 controls the on / off switch to be turned on, the current flows from the power supply module 4 through the aforementioned power supply line to motor 1. At the same time, the turned-on / off switch connects the signal line 16, providing a circuit for the negative terminal of motor 1. Motor 1 obtains power and starts to run, driving the scooter to move. When the on / off switch is turned off, the power supply circuit of motor 1 is cut off, and motor 1 stops running.

[0063] In this embodiment, the on / off switch can be a relay. The main control circuit board 3 controls the relay to be on or off according to the received rotation signal. When the relay is on, the signal line 16 is energized and the motor is powered on and running. When the relay is off, the signal line 16 is de-energized and the motor stops being powered on.

[0064] Furthermore, the first bearing 5 and the second bearing 6 are mounted on the steering tube 8, and the first bearing 5 and the second bearing 6 are electrically isolated from each other by an insulating sleeve 7, ensuring that the current is conducted along a predetermined path and avoiding problems such as short circuits. The steering tube 8 not only serves as a mechanical connecting component, connecting the steering wheel area and the motor 1, making the steering tube 8, the front fork, and the motor 1 form a synchronously rotating whole, but also undertakes some conductive functions, optimizing the power supply line layout.

[0065] It should be noted that in this embodiment, the bearing itself is a conductor. The bearing includes an outer ring, an inner ring, and rotating steel balls located between the outer and inner rings. The bearing itself is existing technology. When the outer ring of the bearing is electrified, the inner ring of the bearing is also electrified.

[0066] In this embodiment, the positive / negative conductive plate is used for wiring. The wire is connected to the conductive plate, which is electrically connected to the outer ring of the bearing. Since the outer ring of the bearing does not rotate, the conductive plate can be electrically connected to the outer ring of the bearing by fixing it with screws or welding.

[0067] In this embodiment, it is important to note that the first bearing 5 and the second bearing 6 are electrically isolated from each other by an insulating sleeve 7; that is, the first bearing and the second bearing are not conductive. The method of implementation is as follows: the first bearing 5 is sleeved on the steering tube 8, and at the same time, the insulating sleeve is also sleeved on the rotating tube 8. Then the second bearing is sleeved on the insulating sleeve 7, thus achieving electrical isolation.

[0068] like Figure 4 As shown, the insulating sleeve 7 has a cylindrical tube, the inner surface of which is fitted onto the steering tube 8, and the outer surface of which is fitted with a second bearing 6, thus achieving electrical isolation between the steering tube 8 and the second bearing 6. Simultaneously, the insulating sleeve 7 also has an outwardly extending protruding edge, which achieves electrical isolation between the side of the first bearing 5 and the side of the second bearing 6.

[0069] In this embodiment, the steering tube, front fork, motor, and second bearing constitute a synchronously rotating integrated system. The second bearing is fitted onto the steering tube, and rotates synchronously with it during the rotation of the steering tube. Since the second positive conductive plate is electrically connected to the inner ring of the second bearing, and one end of the second positive wire is connected to the second positive conductive plate, while the other end is connected to the positive terminal of the motor, the second positive wire participates in the synchronous rotation as part of the integrated system. This design avoids the problem of wire entanglement caused by asynchronous rotation of components, ensuring the stability and reliability of the power supply line during 360-degree turning, ensuring smooth power transmission, and thus maintaining the normal operation of the motor and the entire system.

[0070] In this embodiment, the positive and negative wires, as well as the signal line, are all wires with an insulating outer sheath.

[0071] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A power supply device for a steering wheel 360-degree rotatable twist car, characterized in that: The utility model relates to a kind of electrically driven twist car, including Motor, for driving twist car operation; Steering wheel rotation sensor, for monitoring the rotation action of steering wheel, and corresponding rotation signal is transmitted to main control circuit board; Main control circuit board, the on-off switch is arranged in the main control circuit board, and main control circuit board controls on-off switch conduction or disconnection according to the rotation signal received, to realize the on-off control of motor; Power supply module, for storing and providing power to motor and main control circuit board.

2. The power supply of claim 1, wherein: It also includes first bearing, second bearing, insulating sleeve and hollow steering tube, wherein: The main control circuit board is close to the end of steering tube, which is in the position area of installing steering wheel;The motor is arranged at the other end of the steering tube, and the front fork is driven with the steering tube, to realize that the steering tube, the front fork and the motor form a synchronous rotating whole;The first bearing sleeve and the second bearing sleeve are arranged on the steering tube, and the electrical isolation between the first bearing and the second bearing is realized by the insulating sleeve.

3. The power supply of claim 2, wherein: It also includes first positive electrode lead, second positive electrode lead, first positive electrode conducting sheet and second positive electrode conducting sheet; The first positive electrode conducting sheet is electrically connected with the outer ring of the second bearing, and the second positive electrode conducting sheet is electrically connected with the inner ring of the second bearing; One end of the first positive electrode lead is connected with the positive electrode of the power supply module, and the other end of the first positive electrode lead is electrically connected with the first positive electrode conducting sheet;One end of the second positive electrode lead is electrically connected with the second positive electrode conducting sheet, and the other end of the second positive electrode lead is connected with the positive electrode of the motor.

4. The power supply of claim 3, wherein: It also includes first negative electrode lead, steering tube and second negative electrode lead; One end of the first negative electrode lead is connected with the negative electrode of the power supply module, and the other end of the first negative electrode lead is electrically connected with the outer ring of the first bearing, and the inner ring of the first bearing is electrically connected with the steering tube, which is used as a power supply conductor;One end of the second negative electrode lead is electrically connected with one end of the steering tube, and the other end of the second negative electrode lead is connected to the negative electrode input end of the main control circuit board.

5. The power supply of claim 4, wherein: It also includes third positive electrode lead, one end of which is electrically connected with the second positive electrode lead, and the other end of which extends out of the steering tube from the bottom of the steering tube along the internal hollow area and is connected to the positive electrode input end of the main control circuit board after extending out of the steering tube.

6. The power supply of claim 5, wherein: It also includes signal line, which is a power supply lead, for controlling the on-off operation of the motor;One end of the signal line is electrically connected with the on-off switch in the main control circuit board, and the other end of the signal line is electrically connected with the negative electrode of the motor.

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