A new energy vehicle maintenance platform

By integrating a high-voltage interlock detection and safety interlock system into the new energy vehicle maintenance platform, the system automatically determines the high-voltage power failure status and locks the lifting components, thus solving the problem of subjective errors by maintenance personnel in judging the high-voltage system power failure and ensuring maintenance safety.

CN122126769APending Publication Date: 2026-06-02QUZHOU ENG TECH SCHOOL (QUZHOU TECHNICIAN COLLEGE) +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QUZHOU ENG TECH SCHOOL (QUZHOU TECHNICIAN COLLEGE)
Filing Date
2026-04-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing new energy vehicle maintenance platforms lack real-time monitoring and safety interlocking mechanisms for the high-voltage status of vehicles, requiring maintenance personnel to determine whether the high-voltage system is de-energized, which poses a risk of subjective judgment errors and affects safety.

Method used

Design a new energy vehicle maintenance platform equipped with a high-voltage interlock detection plug, detection circuit module, control unit and safety interlock switch, which automatically determines whether the high voltage is cut off and forcibly locks the lifting component when the power is not cut off to prevent lifting operation.

Benefits of technology

It realizes automatic detection and safety interlock of high-voltage system power failure status, avoids the risk of maintenance personnel accidentally entering the chassis to work under high voltage conditions, and improves maintenance safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the technical field of new energy vehicle repair equipment, and specifically relates to a new energy vehicle repair platform. The platform includes a base, a lifting assembly fixedly connected to the inner wall of the base, a support platform fixedly connected to the side of the lifting assembly away from the base, a wheel locking assembly on the side of the support platform away from the base, a storage seat fixedly connected to the outer surface of the support platform, a high-voltage interlock detection plug inside the storage seat, and a detection circuit module fixedly connected to the side of the support platform near the storage seat. This invention, through the high-voltage interlock detection plug and detection circuit module, automatically reads the status of the high-voltage interlock circuit before the vehicle is lifted, and the control unit determines whether the high voltage is completely disconnected. If the high voltage is not disconnected, a status indicator light and a buzzer will sound an alarm, and a safety interlock switch will forcibly lock the lifting assembly, thereby preventing repair personnel from accidentally entering the chassis area while the high voltage is energized.
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Description

Technical Field

[0001] This invention relates to the field of new energy vehicle repair equipment technology, specifically a new energy vehicle repair platform. Background Technology

[0002] Driven by the global energy structure transformation and the "dual carbon" goal, the new energy vehicle industry has achieved rapid iteration and market penetration has continued to increase. The supporting maintenance service system has ushered in opportunities for large-scale development, but it also faces higher technical challenges. Unlike the maintenance logic of traditional fuel vehicles, which is centered on the engine and transmission, the core power unit of new energy vehicles is the three-electric system. Its structural complexity and technical integration are far higher than those of traditional fuel vehicles, which puts forward stringent requirements on the professionalism and safety of the maintenance platform.

[0003] Currently, most repair platforms on the market only focus on mechanical lifting and wheel limiting functions, lacking real-time monitoring of the vehicle's high-voltage status and safety interlocking mechanisms. Before performing chassis repairs on new energy vehicles, repair personnel need to rely on themselves to determine whether the high-voltage system has been de-energized. This process is prone to subjective judgment errors, and if the inspection is forgotten or insufficient, it will bring great safety risks to the repair work. Therefore, we propose a new energy vehicle repair platform to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a new energy vehicle maintenance platform. This platform solves the problem that when maintenance personnel need to manually determine whether the high-voltage system has been de-energized before performing chassis repairs on new energy vehicles, this process is prone to subjective judgment errors, and any omission or inadequate inspection will pose a significant safety risk to the maintenance work.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a new energy vehicle maintenance platform, comprising a base, a lifting assembly fixedly connected to the inner side wall of the base, a support platform fixedly connected to the side of the lifting assembly away from the base, a wheel locking assembly provided on the side of the support platform away from the base, a storage seat fixedly connected to the outer surface of the support platform, a high-voltage interlock detection plug provided inside the storage seat, a detection circuit module fixedly connected to the side of the support platform near the storage seat, the detection circuit module being electrically connected to the high-voltage interlock detection plug via a flexible cable, and an electrical control box fixedly connected to the outer surface of the base, the electrical control box including a control unit, a drive controller, a safety interlock switch, and a wireless communication module, the detection circuit module being electrically connected to the control unit.

[0006] As a preferred embodiment of the present invention, the base has a storage cavity inside, the size of which is adapted to the lifting assembly, and a set of mounting reinforcements are fixedly connected to the outer surface of the base.

[0007] As a preferred embodiment of the present invention, the lifting assembly includes a bottom frame and a support frame, a set of scissor forks is provided between the bottom frame and the support frame, a connecting rod is provided between the two scissor forks, and a connecting pin is provided on the outer surface of each scissor fork.

[0008] As a preferred embodiment of the present invention, one end of each scissor fork is movably connected to the bottom frame, and the end of each scissor fork away from the bottom frame is movably connected to the support frame. A hydraulic drive device is provided between the bottom frame and the connecting rod.

[0009] As a preferred embodiment of the present invention, the output end of the hydraulic drive device is movably connected to the connecting rod, the side of the hydraulic drive device away from the output end is movably connected to the bottom frame, and the upper surface of the support frame is fixedly connected to the bottom surface of the support platform.

[0010] As a preferred embodiment of the present invention, the wheel locking assembly includes a rear wheel locking block and an adjustable front wheel block, and the outer surface of the support platform is provided with an adapter groove, the size of which is adapted to the adjustable front wheel block.

[0011] As a preferred embodiment of the present invention, a set of columns are fixedly connected to the outer surface of the support platform. Each column has a device groove on one side that is close to each other. An adjustment motor is fixedly connected to the side of each column that is away from the support platform. An adjustment screw is fixedly connected to the output end of each adjustment motor.

[0012] As a preferred embodiment of the present invention, the end of each adjusting screw away from the adjusting motor is movably connected to the inner bottom wall of the equipment groove, the outer surface of each adjusting screw is threaded with an adjusting block, each adjusting block is slidably connected to the equipment groove, and the outer surface of each adjusting block is fixedly connected to an adjustable front wheel stop block.

[0013] As a preferred embodiment of the present invention, a status indicator light is fixedly connected to one side of the support platform near the high-voltage interlock detection plug, and a buzzer is fixedly connected to the outer surface of the electrical control box. The status indicator light is connected to the control unit, and the buzzer is connected to the control unit.

[0014] As a preferred embodiment of the present invention, the input terminal of the safety interlock switch is electrically connected to the control unit, the output terminal of the safety interlock switch is connected to the controller of the lifting assembly, and the wireless communication module is electrically connected to the control unit.

[0015] Compared with the prior art, the present invention provides a new energy vehicle maintenance platform, which has the following beneficial effects: This new energy vehicle repair platform, through its high-voltage interlock detection plug and detection circuit module, automatically reads the status of the high-voltage interlock circuit before the vehicle is lifted. The control unit then determines whether the high voltage has been completely de-energized. If the high voltage has not been de-energized, the status indicator light and buzzer will sound an alarm, and the safety interlock switch will forcibly lock the lifting assembly, preventing it from lifting the vehicle. This effectively prevents repair personnel from accidentally entering the chassis area while the high voltage is energized. It solves the problem that repair personnel must rely on themselves to determine whether the high-voltage system has been de-energized before performing chassis repairs on new energy vehicles. This process is prone to subjective judgment errors, and any omission or inadequate inspection can pose a significant safety risk to the repair work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front section structure of the electrical control box in this invention; Figure 3 This is a schematic diagram of the overall structure of the lifting assembly in this invention; Figure 4 This is a side view of the structure of the present invention; Figure 5 In this invention Figure 1 A magnified structural diagram of part A in the middle; Figure 6 In this invention Figure 3 A magnified structural diagram of section B in the middle; Figure 7 In this invention Figure 4 A magnified structural diagram of part C in the middle.

[0017] In the diagram: 1. Base; 2. Electrical control box; 201. Control unit; 202. Drive controller; 203. Safety interlock switch; 204. Wireless communication module; 205. Buzzer; 3. Lifting assembly; 301. Bottom frame; 302. Support frame; 303. Hydraulic drive device; 304. Connecting rod; 305. Scissor fork; 306. Connecting shaft pin; 4. Support platform; 5. Detection circuit module; 6. High-voltage interlock detection plug; 7. Storage base; 8. Status indicator light; 9. Wheel locking assembly; 901. Rear wheel locking block; 902. Adjustable front wheel block; 10. Column; 11. Adjusting motor; 12. Equipment groove; 13. Adjusting screw; 14. Adjusting block; 15. Adapter slot. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example Please see Figure 1-7In this embodiment: a new energy vehicle repair platform includes a base 1, a lifting assembly 3 fixedly connected to the inner wall of the base 1, a support platform 4 fixedly connected to the side of the lifting assembly 3 away from the base 1, a wheel locking assembly 9 provided on the side of the support platform 4 away from the base 1, a storage seat 7 fixedly connected to the outer surface of the support platform 4, a high-voltage interlock detection plug 6 provided inside the storage seat 7, a detection circuit module 5 fixedly connected to the side of the support platform 4 near the storage seat 7, the detection circuit module 5 being electrically connected to the high-voltage interlock detection plug 6 via a flexible cable, and an electrical control box 2 fixedly connected to the outer surface of the base 1, the electrical control box 2 including a control unit 201, a drive controller 202, a safety interlock switch 203, and a wireless communication module 204, the detection circuit module 5 being electrically connected to the control unit 201; the base 1 is used to support the entire repair platform and ensure its operational stability, the lifting assembly 3 is used to drive the support platform 4 to rise or fall to adjust the vehicle repair height, the support platform 4 is used to support the new energy vehicle to be repaired and provide a stable working surface, and the wheel locking assembly 9 is used to fix the vehicle... Wheels prevent the vehicle from moving on the maintenance platform. Storage seat 7 is used to accommodate and protect the high-voltage interlock detection plug 6, facilitating plug access and storage. The high-voltage interlock detection plug 6 is used to connect to the vehicle's high-voltage interlock circuit to read the high-voltage circuit status. Detection circuit module 5 is used to receive signals collected by high-voltage interlock detection plug 6, perform preprocessing, and transmit them. Flexible cable is used to achieve electrical connection between detection circuit module 5 and high-voltage interlock detection plug 6, allowing the plug to move flexibly. Electrical control box 2 is used to centrally install control unit 201, drive controller 202, safety interlock switch 203, and wireless communication module 204 to achieve electrical control. Control unit 201 is used to receive signals from detection circuit module 5, determine whether the high voltage is cut off, and output control commands. Drive controller 202 is used to receive commands from control unit 201 and control the operation of the drive device in lifting assembly 3. Safety interlock switch 203 is used to forcibly lock lifting assembly 3 when the high voltage is not cut off, prohibiting lifting operation. Wireless communication module 204 is used to wirelessly transmit the working status of the maintenance platform and high-voltage detection results to a remote terminal.

[0020] In this embodiment, the base 1 has a storage cavity inside, the size of which is adapted to the lifting assembly 3. A set of mounting reinforcements is fixedly connected to the outer surface of the base 1. The lifting assembly 3 includes a bottom frame 301 and a support frame 302. A set of scissor forks 305 is provided between the bottom frame 301 and the support frame 302. A connecting rod 304 is provided between the two scissor forks 305. A connecting shaft pin 306 is provided on the outer surface of each scissor fork 305. One end of each scissor fork 305 is movably connected to the bottom frame 301. The end of each scissor fork 305 away from the bottom frame 301 is movably connected to the support frame 302. A hydraulic drive device 303 is provided between the bottom frame 301 and the connecting rod 304. The output end of the hydraulic drive device 303 is movably connected to the connecting rod 304. The side of the hydraulic drive device 303 away from the output end is movably connected to the bottom frame 301. The upper surface of the support frame 302 is fixedly connected to the bottom surface of the support platform 4. The storage cavity is used to accommodate the lifting assembly 3, so that the lifting assembly 3 can be retracted into the base 1 after it is fully lowered, reducing the platform height. The mounting reinforcement is used to fix the base 1 to the ground or other mounting base, enhancing the stability of the maintenance platform. The bottom frame 301 is used to fix the lower end of the scissor fork 305 and connects to the base 1, providing bottom support for the lifting assembly 3. The support frame 302 is used to fix the upper end of the scissor fork 305 and support the support platform 4, transmitting lifting force. The scissor fork 305 is used to achieve smooth lifting and lowering of the support platform 4 through the extension and retraction of the cross linkage mechanism. The connecting rod 304 is used to connect the two scissor forks 305, so that the two scissor forks 305 move synchronously and transmit the driving force of the hydraulic drive device 303. The connecting pin 306 is used to hinge the various linkage nodes of the scissor fork 305, ensuring that the scissor fork 305 rotates flexibly. The hydraulic drive device 303 is used to output hydraulic power to push the connecting rod 304 to move, thereby driving the extension and retraction of the scissor fork 305.

[0021] The wheel locking assembly 9 includes a rear wheel locking block 901 and an adjustable front wheel block 902. The outer surface of the support platform 4 is provided with an adapter groove 15, the size of which is adapted to the adjustable front wheel block 902. The rear wheel locking block 901 is used to abut the rear wheel of the vehicle to prevent the vehicle from moving backward, and the adjustable front wheel block 902 is used to abut the front wheel of the vehicle. The adapter groove 15 is used to accommodate the adjustable front wheel block 902 and provide guiding space for its movement.

[0022] A set of columns 10 are fixedly connected to the outer surface of the support platform 4. Each column 10 has an equipment groove 12 on its side closest to each other. An adjusting motor 11 is fixedly connected to the side of each column 10 away from the support platform 4. An adjusting screw 13 is fixedly connected to the output end of each adjusting motor 11. The end of each adjusting screw 13 away from the adjusting motor 11 is movably connected to the inner bottom wall of the equipment groove 12. An adjusting block 14 is threadedly connected to the outer surface of each adjusting screw 13. Each adjusting block 14 is slidably connected to the equipment groove 12. The outer surface of each adjusting block 14 is adjustable. The front wheel stop 902 is fixedly connected; the column 10 is used to support the adjusting motor 11 and the adjusting screw 13, and to provide lifting guidance for the adjustable front wheel stop 902; the equipment groove 12 is used to accommodate the adjusting screw 13 and the adjusting block 14, and to provide a sliding track for the adjusting block 14; the adjusting motor 11 is used to output rotational power to drive the adjusting screw 13 to rotate; the adjusting screw 13 is used to convert the rotational motion of the adjusting motor 11 into the linear motion of the adjusting block 14; the adjusting block 14 is used to drive the adjustable front wheel stop 902 to move up and down along the equipment groove 12, so as to realize the adjustment of the height of the front wheel stop.

[0023] A status indicator light 8 is fixedly connected to one side of the support platform 4 near the high-voltage interlock detection plug 6. A buzzer 205 is fixedly connected to the outer surface of the electrical control box 2. The status indicator light 8 is connected to the control unit 201, and the buzzer 205 is connected to the control unit 201. The status indicator light 8 is used to emit light signals of different colors according to the judgment result of the control unit 201 to indicate the high-voltage power failure status. The buzzer 205 is used to emit an audible alarm when the high voltage is not cut off to remind maintenance personnel to pay attention to safety.

[0024] The input terminal of the safety interlock switch 203 is electrically connected to the control unit 201, and the output terminal of the safety interlock switch 203 is connected to the controller of the lifting assembly 3. The wireless communication module 204 is electrically connected to the control unit 201. The safety interlock switch 203 is used to cut off the power supply or control signal of the controller of the lifting assembly 3 after receiving the locking command from the control unit 201, and forcibly prohibits lifting. The wireless communication module 204 is used to wirelessly send alarm information, equipment status and other data generated by the control unit 201 to the maintenance management platform or mobile terminal.

[0025] The working principle and usage process of this invention are as follows: First, drive the new energy vehicle onto the support platform 4. Fix the wheels by using the rear wheel locking block 901 and the adjustable front wheel block 902. Then, take out the high-voltage interlock detection plug 6 from the storage seat 7 and insert it into the vehicle's high-voltage interlock circuit. At this time, the detection circuit module 5 transmits the signal to the control unit 201 to determine whether the high voltage is cut off. If the power is not cut off, the status indicator 8 and the buzzer 205 will sound an alarm. The safety interlock switch 203 will lock the lifting assembly 3 to prevent lifting. If the power is cut off, the control unit 201 will start the hydraulic drive device 303 through the drive controller 202 to push the scissor fork 305 to lift the support platform 4 to the maintenance height.

[0026] In the description of this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. It should be noted that, herein, relational terms such as "first," "second," etc., are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A new energy vehicle maintenance platform, comprising a base (1), characterized in that: A lifting assembly (3) is fixedly connected to the inner wall of the base (1). A support platform (4) is fixedly connected to the side of the lifting assembly (3) away from the base (1). A wheel locking assembly (9) is provided on the side of the support platform (4) away from the base (1). A storage seat (7) is fixedly connected to the outer surface of the support platform (4). A high-voltage interlock detection plug (6) is provided inside the storage seat (7). A detection circuit module (5) is fixedly connected to the side of the support platform (4) near the storage seat (7). The detection circuit module (5) is electrically connected to the high-voltage interlock detection plug (6) through a flexible cable. An electrical control box (2) is fixedly connected to the outer surface of the base (1). The electrical control box (2) includes a control unit (201), a drive controller (202), a safety interlock switch (203), and a wireless communication module (204). The detection circuit module (5) is electrically connected to the control unit (201).

2. The new energy vehicle maintenance platform according to claim 1, characterized in that: The base (1) has a storage cavity inside, the size of which is adapted to the lifting assembly (3), and a set of mounting reinforcements are fixedly connected to the outer surface of the base (1).

3. The new energy vehicle maintenance platform according to claim 1, characterized in that: The lifting assembly (3) includes a bottom frame (301) and a support frame (302). A set of scissor forks (305) is provided between the bottom frame (301) and the support frame (302). A connecting rod (304) is provided between the two scissor forks (305). A connecting pin (306) is provided on the outer surface of each scissor fork (305).

4. A new energy vehicle maintenance platform according to claim 3, characterized in that: One end of each of the scissor forks (305) is movably connected to the bottom frame (301), and the end of each of the scissor forks (305) away from the bottom frame (301) is movably connected to the support frame (302). A hydraulic drive device (303) is provided between the bottom frame (301) and the connecting rod (304).

5. A new energy vehicle maintenance platform according to claim 4, characterized in that: The output end of the hydraulic drive device (303) is movably connected to the connecting rod (304), the side of the hydraulic drive device (303) away from the output end is movably connected to the bottom frame (301), and the upper surface of the support frame (302) is fixedly connected to the bottom surface of the support platform (4).

6. A new energy vehicle maintenance platform according to claim 1, characterized in that: The wheel locking assembly (9) includes a rear wheel locking block (901) and an adjustable front wheel block (902). The outer surface of the support platform (4) is provided with an adapter groove (15), the size of which is adapted to the adjustable front wheel block (902).

7. A new energy vehicle maintenance platform according to claim 1, characterized in that: A set of columns (10) are fixedly connected to the outer surface of the support platform (4). Each column (10) has a device groove (12) on one side that is close to each other. Each column (10) has an adjustment motor (11) fixedly connected to the side that is away from the support platform (4). Each adjustment motor (11) has an adjustment screw (13) fixedly connected to its output end.

8. A new energy vehicle maintenance platform according to claim 7, characterized in that: Each of the adjusting screws (13) is movably connected to the inner bottom wall of the equipment groove (12) at the end away from the adjusting motor (11). Each of the adjusting screws (13) has an adjusting block (14) threadedly connected to its outer surface. Each adjusting block (14) is slidably connected to the equipment groove (12). The outer surface of each adjusting block (14) is fixedly connected to the adjustable front wheel stop (902).

9. A new energy vehicle maintenance platform according to claim 1, characterized in that: A status indicator light (8) is fixedly connected to one side of the support platform (4) near the high-voltage interlock detection plug (6). A buzzer (205) is fixedly connected to the outer surface of the electrical control box (2). The status indicator light (8) is connected to the control unit (201), and the buzzer (205) is connected to the control unit (201).

10. A new energy vehicle maintenance platform according to claim 1, characterized in that: The input terminal of the safety interlock switch (203) is electrically connected to the control unit (201), the output terminal of the safety interlock switch (203) is connected to the controller of the lifting assembly (3), and the wireless communication module (204) is electrically connected to the control unit (201).