Suspension type magnetic attraction type automatic charging device for electric vehicle

Abstract

The invention discloses a suspension type magnetic attraction type automatic charging device for an electric vehicle, and belongs to the technical field of electric vehicle charging and magnetic attraction charging. The device comprises a suspension type mobile charging support, a roller lifting platform, a universal magnetic attraction charging head, an electric vehicle magnetic attraction charging receiving end and the like. By renovating a traditional charging mode and adopting suspension type magnetic type automatic charging, remote one-key charging, charging parking space release, safety performance improvement and technology ordered transition can be realized, the problems of complicated wired charging operation and low charging efficiency of the existing electric automobile are solved, and the system and the method are suitable for charging new electric automobiles and modified electric automobiles.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle charging and magnetic charging technology, specifically to a suspended magnetic automatic charging device for electric vehicles. Background Technology

[0002] With the popularization of AI and robotics technologies, the Internet of Things (IoT) will gradually enter a stage of exponential and explosive development by 2026. Human labor in various industries will be rapidly replaced, and electricity will gradually dominate future technologies. Currently, most electric vehicle charging technologies still rely on manual wired charging. The thick, stiff cables are time-consuming, laborious, and cumbersome to operate during charging, requiring precise vehicle parking locations. This reduces charging efficiency, causes wear and tear on consumables, affects user experience, and poses certain safety risks, which is inconsistent with the future direction of intelligent technology development.

[0003] Currently, magnetic charging technology is relatively mature and widely used in fields such as electronic watches and mobile phones, offering advantages such as safety, efficiency, intelligence, and convenience. This type of magnetic automatic charging device for electric vehicles effectively integrates the advantages of current magnetic charging technology and intelligent unmanned technology, significantly improving the charging efficiency and safety performance of a large number of electric vehicles. Summary of the Invention

[0004] Objective: To address the problems of complex operation and low charging efficiency of existing wired charging for electric vehicles, and to provide an automated magnetic charging device that is easy to connect and highly efficient.

[0005] Technical Solution: This automatic charging device for electric vehicles adopts a suspended, magnetic, and automated charging mode, mainly including: ① a suspended mobile charging bracket and a roller lifting platform; ② a universal magnetic charging head. The charging head has a built-in infrared transmitter and a magnetic coil; ③ an electric vehicle magnetic charging receiver and extension cable. The charging receiver has a built-in infrared transmitter and a magnetic coil; ④ a DC-DC converter; and ⑤ a mobile APP platform.

[0006] Benefit 1: Fewer restrictions on electric vehicle parking locations. This magnetic charging device has fewer restrictions on the parking location of electric vehicles. Users only need to place the magnetic charging port anywhere under the suspended magnetic device to achieve automatic parking docking and charging. Traditional wired charging and battery swapping technologies have requirements on the vehicle's parking location and orientation, making it difficult to achieve charging in special circumstances.

[0007] Benefit Two: Users can remotely charge their vehicles with a single click via their mobile phones. Users who forget to charge their electric vehicles no longer need to go downstairs to charge, users at highway service areas no longer need to queue for charging spots, and users no longer need to get out of their cars to touch cold charging cables in winter. All operations can be completed with a single click via mobile phone. The omnidirectional charging head allows for automatic charging even if the car is not parked horizontally. Furthermore, with the future surge in the number of electric vehicles, the early deployment and implementation of magnetic charging will rapidly reduce charging time costs, prevent traffic congestion in some areas, and improve traffic management.

[0008] Benefit 3: Improved safety during electric vehicle charging. Effectively prevents accidents such as fires, explosions, and electric shocks caused by forgetting to unplug the charging cable, driving away from the parking space while charging, or the vehicle being knocked off the parking space due to an impact. This can result in cable breakage, damage to ground-mounted charging devices, car charging ports, etc.

[0009] Benefit 4: Convenient and simple modification, enabling a smooth technological transition. Modifying existing electric vehicles to magnetic charging devices only requires running an internal cable through the C-pillar on the side of the existing charging port, and then adding a magnetic charging port at a suitable location on the rear of the roof. This retains the traditional wired charging mode while allowing both new and existing users to enjoy magnetic charging technology at a low cost, achieving a smooth transition between old and new technologies and reducing replacement costs. Compared to battery swapping technology, which has high requirements for space and manufacturing processes, and where screws are easily worn and detached due to repeated disassembly and reassembly during swapping, magnetic charging technology is relatively outdated.

[0010] Benefit 5: Freeing up charging spaces and maximizing space utilization. This magnetic charging device features an easy-to-install charging terminal, positioned above the parking space. Vehicles parked under the suspended charging unit can queue online and charge with a single click. Once one vehicle finishes charging, the system automatically allocates resources for the next, significantly freeing up parking space and time. Furthermore, if the magnetic charging technology for electric vehicles proves successful, it can be combined with multi-level parking garage technology to further free up parking space. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the device; Figure 2 Diagram of a suspended mobile charging bracket and a roller lifting platform; Figure 3 Image of a universal magnetic charging head; Figure 4 Diagram of a magnetic charging receiver for electric vehicles. Detailed Implementation

[0012] ① The user installs a suspended mobile charging bracket, a roller lifting platform, and a matching DC-DC converter to enable mobile charging. The electric vehicle is retrofitted with a magnetic charging receiver, and a mobile app is downloaded. ② The user parks the electric vehicle in the charging space and initiates automatic charging via the mobile app. ③ The electric vehicle's magnetic charging receiver has a built-in infrared device that emits a charging signal. Upon receiving the signal, the omnidirectional magnetic charging head automatically moves to a position directly above the receiver via the suspended bracket. ④ The roller lifting platform rotates and lowers the cable according to the program. The omnidirectional magnetic charging head descends under gravity to above the receiver, and the receiver's electric protective cover automatically opens. When the omnidirectional magnetic charging head is within 10 cm of the receiver, the infrared and magnetic devices are activated again. With the assistance of magnetism, gravity, and the omnidirectional wheels, the charging head completes the docking connection with the receiver. ⑤ After the charging connection sensor confirms a successful connection, the magnetic charging power-on program is initiated, and the vehicle begins charging. After charging is completed, the universal magnetic charging head will automatically disconnect and retract; ⑥ During charging, if the connection sensor detects that the vehicle connection has failed, the magnetic charging system will automatically disconnect.

Claims

1. A suspended magnetic automatic charging system for electric vehicles, characterized in that, The system mainly includes a suspended mobile charging bracket, a roller lifting platform, a universal magnetic charging head, an electric vehicle magnetic charging receiver and extension cable, and a mobile APP platform. The suspended mobile charging bracket is positioned high above the charging space, with the universal magnetic charging head connected to the output end of the bracket. The bracket allows for multi-dimensional horizontal and vertical position adjustment to accommodate different charging port locations. The universal magnetic charging head and the electric vehicle magnetic charging receiver are magnetically attracted for a detachable and precise connection, forming a closed charging circuit. The suspended mobile charging bracket, roller lifting platform, and universal magnetic charging head are electrically connected, integrating automatic alignment control, charging start / stop control, and safety protection control functions. This allows for automatic magnetic charging of a single vehicle or simultaneous automatic charging of multiple electric vehicles. It can also respond to remote commands for one-button charging and automatically disconnects the universal magnetic charging head from the electric vehicle magnetic charging receiver in case of external interference, ensuring charging safety.

2. The electric vehicle suspended magnetic automatic charging system according to claim 1, characterized in that, The universal magnetic charging head is an integrated magnetic charging head structure, including a shell, universal wheels, an electromagnetic coil device, charging conductive protrusions, an alignment detection component, and an insulating protective sleeve. The electromagnetic coil device is embedded around the docking end face of the charging head shell, and the charging conductive protrusions are evenly distributed on the charging head shell inside the electromagnetic coil device. The outside of the protrusions is wrapped with an insulating protective sleeve to eliminate the risk of leakage and short circuit. The alignment detection component is embedded in the docking end face of the charging head shell and is used to collect the position signal of the electric vehicle's magnetic charging receiver to achieve precise alignment and docking. The electromagnetic coil device generates a strong magnetic attraction force when energized, and the magnetic force disappears quickly when the power is turned off, achieving rapid docking and separation.

3. The electric vehicle suspended magnetic automatic charging system according to claim 2, characterized in that, The electric vehicle magnetic charging receiver is a modified magnetic charging receiver structure adapted to the original vehicle charging port. It includes a base and electric protective cover, a magnetically engaging metal sheet, a conductive concave contact for receiving power, a female insulating pad, and a port fixing component. The magnetically engaging metal sheet is magnetically adapted to the electromagnetic coil device and embedded in the mating end face of the electric vehicle magnetic charging receiver. The conductive concave contact for receiving power and the conductive convex contact for charging are arranged in a one-to-one correspondence. After magnetic adhesion, the convex contact and the concave contact are tightly abutted to ensure high-current charging conductivity. The electric vehicle magnetic charging receiver is fixed in a suitable position on the rear of the top of the electric vehicle, realizing the modification of existing electric vehicles by adding circuitry and magnetic charging receivers while retaining the original vehicle charging port.

4. The electric vehicle suspended magnetic automatic charging system according to claim 1, characterized in that, The suspended mobile charging bracket includes a horizontal translation component and a vertical lifting component; The lateral translation component is laid out horizontally along the width of the parking space, and its length can be determined according to the actual width of the parking lot. The longitudinal translation component is laid out horizontally along the length of the parking space, and its length is generally the length of a normal vehicle. The roller lifting platform is fixed to the longitudinal translation component and connected to the universal magnetic charging head through a cable. The lateral and longitudinal translation components adjust the horizontal offset of the charging head, and the vertical lifting component adjusts the docking height of the charging head. The two work together to achieve the perfect alignment between the magnetic charging head and the magnetic charging receiver.

5. The electric vehicle suspended magnetic automatic charging system according to claim 1, characterized in that, The system utilizes a mobile app platform to achieve remote communication, staggered charging scheduling, and automatic power-off disconnection. The remote communication function supports mobile network communication, allowing it to receive remote one-click commands from mobile devices and the backend management terminal, directly triggering the entire process of automatic alignment, magnetic docking, and charging start-up, achieving seamless remote control. The staggered charging scheduling function, when detecting charging needs from multiple electric vehicles, sequentially completes magnetic docking charging according to the vehicle's charging request order and charging capacity requirements. After charging one vehicle, it automatically resets and docks with the next, enabling automatic staggered charging of multiple vehicles on a single-suspension charging device. The automatic power-off disconnection function monitors the charging status and external environment in real time. Upon detecting any abnormality such as vehicle mismovement, external force pulling, charging overload, or leakage / overheating, it immediately cuts off the charging circuit and simultaneously disconnects the magnetic power supply of the universal magnetic charging head, quickly separating the charging head from the magnetic charging receiver to avoid safety hazards.

6. The electric vehicle suspended magnetic automatic charging system according to claim 5, characterized in that, The universal magnetic charging head is also connected to a parking space sensing module. The parking space sensing module uses infrared sensing to capture the signal of a vehicle entering and parking in real time. After the vehicle stops, the automatic charging process is automatically started without manual intervention.

7. The electric vehicle suspended magnetic automatic charging system according to claim 2, characterized in that, The edge of the docking end face of the universal magnetic charging head is provided with an elastic anti-collision buffer pad to buffer the rigid collision between the charging head and the vehicle body and the universal magnetic charging head when there is a misalignment. At the same time, the universal magnetic charging head is equipped with a manual emergency release button, which can manually disconnect the magnetic circuit in an emergency and forcibly release the adsorption separation.

Images