Electric vehicle fault diagnosis practical training platform

Abstract

The invention relates to the technical field of automobile teaching practical training equipment, and discloses an electric automobile fault diagnosis practical training platform which comprises a practical training workbench, a test board mechanism is arranged on the rear side of the practical training workbench, and a display mechanism and a cleaning mechanism are arranged in the practical training workbench. The front side of the training workbench is connected with a cabinet door through a hinge, a monitoring mechanism is arranged on the outer side of the test bench mechanism, an electric vehicle chassis is arranged on the top of the test bench mechanism, a battery is arranged on the top of the electric vehicle chassis, and an air cooler is arranged on the right side of the test bench mechanism. And the test board mechanism comprises a test board. Data is collected and analyzed through various sensors, so that students are assisted to improve fault diagnosis capability and professional quality; 2, the test bench mechanism is used for simulating road conditions, helping to understand vehicle characteristics and supporting research, development and maintenance; and thirdly, the cleaning mechanism ensures the equipment to be clean, prolongs the service life and ensures the continuous and efficient development of practical training work.

Description

Technical Field

[0001] The invention relates to the technical field of automobile teaching and training equipment, in particular to an electric vehicle fault diagnosis training platform. Background Art

[0002] With the enhancement of global environmental awareness and increasingly stringent emission restrictions on traditional fuel vehicles, electric vehicles have emerged as a clean and efficient means of transportation. Their development aims to reduce dependence on fossil fuels, reduce carbon emissions, and alleviate environmental pollution and energy crises. At the same time, the continuous advancement of related technologies such as battery technology and electronic control systems has promoted the improvement of electric vehicle performance and the reduction of costs, making it gradually become an important direction for the future development of the automotive industry, and has received widespread attention and favor from governments, automakers and consumers.

[0003] The electric vehicle fault diagnosis training platform works by simulating the electrical architecture and operating status of a real vehicle. It is equipped with battery management, motor drive and various control units that are consistent with the real vehicle. Students can locate, analyze and troubleshoot faults based on their knowledge of automobile fault diagnosis, thereby effectively improving their fault diagnosis skills.

[0004] Fault diagnosis methods lack precision and intuitiveness, making it difficult for trainees to deeply learn fault diagnosis knowledge and skills, and to accurately determine the cause and location of the fault, which affects the improvement of professional quality. This aims to improve the overall efficiency and quality of electric vehicle fault diagnosis training. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an electric vehicle fault diagnosis training platform, which solves the problem of poor diagnostic means and learning difficulties for trainees in electric vehicle fault diagnosis training. In order to improve the efficiency and quality of training, it is urgent to improve the diagnostic method.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electric vehicle fault diagnosis training platform, comprising a training workbench, a test bench mechanism is arranged at the rear side of the training workbench, a display mechanism and a cleaning mechanism are arranged inside the training workbench, the front side of the training workbench is connected to the cabinet door through a hinge, a monitoring mechanism is arranged on the outside of the test bench mechanism, an electric vehicle chassis is arranged on the top of the test bench mechanism, a battery is arranged on the top of the electric vehicle chassis, and an air cooler is arranged on the right side of the test bench mechanism;

[0007] The test bench mechanism includes a test bench, a slide groove is provided on the outer side of the test bench, rollers are evenly spaced on the top of the test bench, a plurality of groups of slide rails are evenly spaced on the outer side of the test bench, a ventilation hood is slid between each group of the slide rails, a circular hole is provided on the inner side of the ventilation hood, a clamping plate is provided on the inner side of the ventilation hood, a plurality of ventilation holes are provided inside the test bench, heating pipes are provided inside the ventilation holes, and a snap mechanism is evenly spaced on the outer side of the test bench.

[0008] Preferably, the monitoring mechanism includes pulleys, which slide on the inner side of the slide groove, and are arranged on the inner side of the slider one. A U-shaped rod is arranged between the tops of the slider one, and a plurality of placement plates are equidistantly arranged on the outer side of the U-shaped rod. Voltage sensors, current sensors, humidity sensors, temperature sensors and pressure sensors are respectively arranged on the tops of the placement plates. The U-shaped rods are respectively connected to the corresponding voltage sensors, current sensors, humidity sensors, temperature sensors and pressure sensors through spring tubes, and the voltage sensors, current sensors, humidity sensors, temperature sensors and pressure sensors transmit the collected data to the central control system.

[0009] Preferably, the snap mechanism includes a square box, which is arranged on the outside of the test bench, and a slider 2 is slid inside the test bench, and a spring 2 is arranged between the slider 2 and the inner wall of the square box. A clamping rod 2 and a slide plate are respectively arranged on the outside of the slider 2, and the clamping rod 2 is engaged with the positioning hole of the corresponding clamping plate.

[0010] Preferably, the display mechanism includes sliding rods, which are equidistantly arranged in a display cabinet of the training workbench, a fixed plate 1 is arranged between the sliding rods, a display screen is arranged on the top of the fixed plate 1, a limit plate is arranged on the top of the display screen, and the display screen passes through the square hole on the top of the training workbench, a screw rod is arranged in the middle of the fixed plate 1, a power mechanism is arranged at the bottom end of the screw rod, and the top end of the screw rod is rotatably connected to the inside of the training workbench.

[0011] Preferably, the power mechanism includes a second fixed plate, which is arranged on the inner wall of the training workbench, a shell is arranged on the outer side of the second fixed plate, a motor is arranged on the outer side of the second fixed plate, one end of a worm is arranged on the output end of the motor, the other end of the worm is rotatably connected to the inner side of the shell, the worm is meshingly connected to a worm wheel, and the lower end of the screw is arranged on the outer side of the worm wheel.

[0012] Preferably, the cleaning mechanism includes a high-pressure pump, which is arranged on the inner bottom side of the training workbench, the input end of the high-pressure pump is connected to the cleaning liquid bottle through a pipeline, the output end of the high-pressure pump is connected to the nozzle through a pipeline, a plurality of nozzles are equidistantly arranged on the outer side of the nozzle, the nozzle is connected to the inner top wall of the training workbench through a connecting rod, a plurality of fixed plates three are equidistantly arranged on the inner wall of the training workbench, a clamping rod one is slidably arranged on the outer side of the fixed plate three, a spring one is arranged between the clamping rod one and the fixed plate three, a brush is arranged between the clamping rod one on the upper side, and a sponge roller is arranged between the clamping rod one on the lower side.

[0013] Preferably, the ventilation hoods are connected to the output end of the air cooler through a pipeline, fans are provided at both ends of the ventilation holes, and dustproof nets are provided on the outer sides of the fans.

[0014] Preferably, a dryer is provided on the inner wall of the training workbench.

[0015] Preferably, the central control system includes:

[0016] Monitoring module: It is used to transmit the data collected by the voltage sensor, current sensor, humidity sensor, temperature sensor and pressure sensor to the central control system;

[0017] Analysis module: It analyzes the data collected in the central control system through the data processing unit.

[0018] The present invention provides an electric vehicle fault diagnosis training platform, which has the following beneficial effects:

[0019] 1. The present invention can collect data from key components such as the chassis and battery of electric vehicles through the use of multiple sensors in the monitoring mechanism, such as voltage, current, humidity, temperature and pressure sensors, and transmit the data to the central control system for analysis, which can effectively help students accurately determine the causes and locations of various faults, greatly improving the accuracy of fault diagnosis and teaching effects, so that students can learn electric vehicle fault diagnosis knowledge and skills more intuitively and in-depth, and improve their professional quality.

[0020] 2. The air cooler, heating pipe and ventilation system equipped on the test bench of the present invention can simulate environmental conditions under different actual road conditions such as cold air in winter and hot air in summer, so that trainees can study the impact of extreme temperatures on the performance of electric vehicle batteries and chassis components in a laboratory environment, which helps to gain a deeper understanding of the vehicle's operating characteristics and potential failure factors in different seasons and working conditions, enhance the ability to cope with actual complex situations, and provide more practical technical support for the research and development, repair and maintenance of electric vehicles.

[0021] 3. The cleaning mechanism of the present invention solves the cleaning problem of the training bench equipment. The high-pressure pump, nozzle, brush, sponge roller and other components cooperate with each other to conveniently and thoroughly clean and dry key parts such as the display screen, maintain the cleanliness of the equipment and a good working condition, not only extend the service life of the equipment, but also reduce the risk of failure caused by dirt accumulation, ensure that the training bench is always in a stable and reliable operating state, improve the continuity and stability of the training work, and provide a strong guarantee for long-term and efficient teaching and practical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall stereogram of the present invention;

[0023] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the chassis of an electric vehicle;

[0024] Figure 3 For the present invention Figure 1 A cross-sectional view of the medium training workbench;

[0025] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle;

[0026] Figure 5 For the present invention Figure 1 A front view of the medium training workbench;

[0027] Figure 6 For the present invention Figure 5 A cross-sectional schematic diagram of the power mechanism;

[0028] Figure 7 For the present invention Figure 1 A magnified schematic diagram of the test bench mechanism;

[0029] Figure 8 For the present invention Figure 1 The right side view of the test bench mechanism;

[0030] Fig. 9 For the present invention Figure 1 A partial cross-sectional view of the test bench mechanism;

[0031] Fig.10 For the present invention Figure 8 A cross-sectional view of the middle buckle mechanism;

[0032] Fig.11 It is a flow chart of the central control system of the present invention.

[0033] Among them, 1. Training workbench; 2. Display mechanism; 201. Limit plate; 202. Display screen; 203. Fixed plate 1; 204. Screw rod; 205. Sliding rod; 3. Test bench mechanism; 301. Test bench; 302. Slide groove; 303. Roller; 304. Slide rail; 305. Ventilation hood; 306. Card plate; 307. Round hole; 308. Ventilation hole; 309. Heating tube; 4. Monitoring mechanism; 401. Sliding block 1; 402. Pulley; 403. U-shaped rod; 404. Spring tube; 405. Placement plate; 406. Voltage sensor; 407. Current sensor; 408. Humidity sensor; 409. Temperature sensor ; 4010, pressure sensor; 5, power mechanism; 501, fixed plate two; 502, motor; 503, worm; 504, worm wheel; 505, housing; 6, cleaning mechanism; 601, high-pressure pump; 602, cleaning liquid bottle; 603, clamping rod one; 604, nozzle; 605, nozzle; 606, spring one; 607, fixed plate three; 608, brush; 609, sponge roller; 7, buckle mechanism; 701, square box; 702, clamping rod two; 703, spring two; 704, slider two; 705, skateboard; 8, electric vehicle chassis; 9, battery; 10, fan; 11, dryer; 12, air cooler; 13, cabinet door. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Please refer to the attached Figure 1 -Attached Figure 6The embodiment of the present invention provides an electric vehicle fault diagnosis training platform, including a training workbench 1, a test bench mechanism 3 is arranged at the rear side of the training workbench 1, and the front side of the training workbench 1 is connected to the cabinet door 13 through a hinge. The training workbench 1 provides a stable working platform for various tests and operations; its front side is connected to the cabinet door 13 through a hinge. This connection method enables the cabinet door 13 to be flexibly opened and closed, which is convenient for operators to maintain and repair the components inside the training workbench 1 and store related tools and accessories, ensuring the smooth development of the training work and the long-term effective operation of the equipment. The top of the test bench mechanism 3 is provided with The electric vehicle chassis 8 is provided with a battery 9 on the top of the electric vehicle chassis 8. An air cooler 12 is provided on the right side of the test bench mechanism 3. The ventilation hood 305 is connected to the output end of the air cooler 12 through a pipeline. Fans 10 are provided at both ends of the ventilation hole 308, and dustproof nets are provided on the outside of the fan 10. The electric vehicle chassis 8 is provided on the top of the test bench mechanism 3. The chassis 8, as a key bearing part of the electric vehicle, can truly restore the bottom structure and layout of the vehicle, and provide a practical operation object for fault diagnosis of the chassis and its upper components; the battery 9 provided on the top is the power source of the electric vehicle. The performance detection and fault simulation of the battery 9 under different working conditions are helpful to deeply study the working characteristics of the battery and various possible fault conditions, so as to improve the ability and level of fault diagnosis of electric vehicle batteries. A cooler 12 is arranged on the right side of the test bench mechanism 3, which can generate low-temperature airflow, providing conditions for simulating the operating state of electric vehicles in cold environments, making the detection more in line with actual usage scenarios, especially for studying the influence of low temperature on battery performance, stability of electronic components and other chassis components. The ventilation hoods 305 are connected to the output end of the cooler 12 through a pipe as a cold air transmission The channel can evenly guide the cold air to the part that needs to simulate the low temperature environment, ensuring the accuracy and uniformity of the temperature simulation; fans 10 are provided at both ends of the ventilation hole 308, and the function of the fan 10 is to accelerate the flow and circulation of air. Whether it is simulating a high temperature or a low temperature environment, it can make the heat or cold more quickly and evenly distributed in the test area, improving the efficiency and effect of the environmental simulation, and the outer side of the fan 10 is provided with a dustproof net to effectively prevent dust and other impurities from entering the interior of the test bench, avoiding damage to electronic components and test equipment due to dust accumulation, and ensuring the reliability of the test results and the stability of the equipment;

[0036] The interior of the training workbench 1 is respectively provided with a display mechanism 2 and a cleaning mechanism 6, the display mechanism 2 includes a slide bar 205, the slide bars 205 are equidistantly arranged in the display cabinet of the training workbench 1, a fixed plate 203 is arranged between the slide bars 205, a display screen 202 is arranged on the top of the fixed plate 203, a limit plate 201 is arranged on the top of the display screen 202, and the display screen 202 passes through the square hole on the top of the training workbench 1, a screw rod 204 is arranged in the middle of the fixed plate 203, a power mechanism 5 is arranged at the bottom end of the screw rod 204, and the top end of the screw rod 204 is rotatably connected to the interior of the training workbench 1;

[0037] The interior of the training workbench 1 is respectively provided with a display mechanism 2 and a cleaning mechanism 6. The slide bars 205 in the display mechanism 2 are equidistantly arranged in the display cabinet of the training workbench 1, providing precise guidance and stable support for the up and down movement of the fixed plate 203, ensuring that the display screen 202 remains stable during the lifting process to avoid shaking and deviation; the fixed plate 203 arranged between the slide bars 205 serves as a fixed carrier of the display screen 202, which can firmly install the display screen 202 and adjust the up and down position following the rotation of the screw rod 204; a display screen 202 is arranged on the top of the fixed plate 203, and the display screen 202 is an important interface for human-computer interaction, which is used to intuitively display the fault diagnosis information analyzed and processed by the central control system, the data collected by various sensors, and the operation prompts, so that the operator can timely and accurately understand the working status of the training platform and the fault conditions of vehicle components, so as to make correct diagnosis and operation decisions; the display screen A limit plate 201 is provided on the top of 202, and its function is to prevent the display screen 202 from exceeding the safety range during the lifting process, to avoid collision or damage of the display screen 202 with other components due to excessive lifting, and to ensure the safety and stability of the equipment; and the display screen 202 runs through the square hole on the top of the training workbench 1, so that the display screen 202 can display information at a suitable position, which is convenient for operators to check at any time during the training process and improve work efficiency. A screw rod 204 is provided in the middle of the fixed plate 1 203. The screw rod 204 serves as a transmission component to convert the rotational motion of the power mechanism 5 into linear motion, thereby realizing the lifting function of the fixed plate 1 203 and the display screen 202, meeting the personalized needs of different operators for the height of the display screen 202, and improving the comfort and convenience of operation; a power mechanism 5 is provided at the bottom end of the screw rod 204 to provide a power source for the rotation of the screw rod 204, so as to ensure that the lifting function of the display mechanism 2 is realized;

[0038] The power mechanism 5 includes a second fixing plate 501, which is arranged on the inner wall of the training workbench 1, a housing 505 is arranged on the outer side of the second fixing plate 501, a motor 502 is arranged on the outer side of the second fixing plate 501, one end of a worm 503 is arranged on the output end of the motor 502, the other end of the worm 503 is rotatably connected to the inner side of the housing 505, the worm 503 is meshedly connected to a worm wheel 504, and the lower end of the screw 204 is arranged on the outer side of the worm wheel 504;

[0039] The second fixing plate 501 in the power mechanism 5 is arranged on the inner wall of the training workbench 1, providing a stable installation foundation for the motor 502 and other components, ensuring the stability and reliability of the power mechanism 5 during operation; a shell 505 is arranged on the outer side of the second fixing plate 501, and the shell 505 plays a role in protecting the internal components, preventing dust, moisture and other impurities from entering the power mechanism 5, and at the same time can also reduce the noise generated by the motor 502 and other components during operation from propagating outward, thereby optimizing the working environment; a motor 502 is arranged on the outer side of the second fixing plate 501, and the motor 502 serves as a power source, converting electrical energy into mechanical energy, providing rotational power for the entire power mechanism 5, and driving the worm 503 to rotate; an end of the worm 503 is arranged at the output end of the motor 502, and the worm 503 is rotated. 3 starts to rotate under the drive of the motor 502, and the meshing transmission between the motor 502 and the worm wheel 504 can achieve a large reduction ratio, thereby converting the high-speed rotation of the motor 502 into a low-speed and high-torque output of the worm wheel 504, meeting the torque requirement required for the screw rod 204 to drive the display screen 202 to rise and fall smoothly; the other end of the worm 503 is rotatably connected to the inner side of the housing 505, and this rotatable connection method ensures the stability and accuracy of the worm 503 during the rotation process, and reduces the energy loss and transmission error caused by shaking or offset; the worm 503 is meshedly connected with the worm wheel 504, and the worm wheel 504 rotates under the drive of the worm 503, driving the lower end of the outer screw rod 204 to rotate, realizing the lifting function of the screw rod 204, and then completing the height adjustment operation of the display screen 202;

[0040] The cleaning mechanism 6 includes a high-pressure pump 601, which is arranged on the inner bottom side of the training workbench 1, the input end of the high-pressure pump 601 is connected to the cleaning liquid bottle 602 through a pipeline, and the output end of the high-pressure pump 601 is connected to the nozzle 604 through a pipeline, and a plurality of nozzles 605 are equidistantly arranged on the outer side of the nozzle 604, and the nozzle 604 is connected to the inner top wall of the training workbench 1 through a connecting rod, and a plurality of fixed plates 3 607 are equidistantly arranged on the inner wall of the training workbench 1, and a clamping rod 1 603 is slidably arranged on the outer side of the fixed plate 3 607, and a spring 1 606 is arranged between the clamping rod 1 603 and the fixed plate 3 607, a brush 608 is arranged between the upper clamping rod 1 603, and a sponge roller 609 is arranged between the lower clamping rod 1 603;

[0041] The high-pressure pump 601 of the cleaning mechanism 6 is arranged on the inner bottom side of the training workbench 1. It bears the key responsibility of providing power for the cleaning operation. By connecting the input end pipeline of the cleaning liquid bottle 602, the cleaning liquid in the bottle is extracted, and the cleaning liquid is given enough pressure by using its own pressurization mechanism to ensure that it can stably flow to the nozzle 604 through the output end pipeline, providing strong power support for the cleaning work of the display screen 202, so that the cleaning liquid can cover the surface of the display screen with appropriate pressure and flow rate, meeting the basic requirements of cleaning. The nozzle 604 is a distribution component of the cleaning liquid, which is closely connected to the output end of the high-pressure pump 601, receives the high-pressure cleaning liquid from the high-pressure pump 601, and evenly distributes it to multiple nozzles 6 equidistantly distributed on the outside. 05, these nozzles 605 can spray the cleaning liquid on the display screen 202 in the form of fine mist. This mist spraying method greatly expands the contact range between the cleaning liquid and the display screen 202, so that each area of ​​the display screen 202 can be fully covered by the cleaning liquid, thereby significantly improving the cleaning effect, effectively removing dust, stains and other types of impurities that affect the display clarity attached to the surface of the display screen 202, and effectively ensuring the cleanliness and visual clarity of the display screen 202, ensuring that it can provide operators with accurate and clear information display without being disturbed by dirt. The nozzle 604 is firmly connected to the inner top wall of the training workbench 1 with the help of a connecting rod. This connection method not only provides a stable support structure for the nozzle 604, but also The position accuracy and angle stability of the nozzle 604 during operation are ensured, so that the nozzle 605 can always accurately spray the cleaning liquid on the predetermined position of the display screen 202, avoiding the problem of uneven spraying of the cleaning liquid or deviation from the target area due to shaking or displacement of the nozzle 604, greatly improving the accuracy and reliability of the cleaning operation, and providing a solid guarantee for efficient and thorough cleaning operations. A plurality of fixed plates three 607 are evenly arranged on the inner wall of the training workbench 1. These fixed plates three 607 provide a reliable foundation and precise guide rails for the installation and sliding of the clamping rod one 603. The clamping rod one 603 can slide smoothly on the outer side of the fixed plate three 607, ensuring that its movement trajectory during operation is stable and predictable. The spring 1 606 arranged between the clamp rod 1 603 and the fixing plate 3 607 plays a key role, firmly fixing them at a specific working position, ensuring that during the cleaning process of the display screen 202, the brush 608 and the sponge roller 609 can always maintain a close and stable contact state with the display screen 202. Under the elastic force of the spring 1 606, the bristles of the brush 608 are in close contact with the surface of the display screen 202. During the cleaning process, the direct friction between the bristles and the display screen 202 can effectively remove those stubborn stains that are firmly attached and difficult to be dissolved and removed by the cleaning liquid alone, further improving the cleaning degree of the display screen 202, ensuring that the surface quality of the display screen 202 reaches a high standard, and making it neat and clean in appearance.There is no obvious stain left. The sponge roller 609 is also tightly fitted with the display screen 202 under the elastic support of the spring 606. After the brush 608 finishes cleaning the stains, the sponge roller 609 can quickly absorb the moisture of the cleaning liquid remaining on the surface of the display screen 202, speeding up the drying speed of the display screen 202, effectively avoiding electrical safety problems such as short circuits caused by residual moisture, and at the same time completely wipe off the water stains on the surface of the display screen 202, restoring the display screen 202 to an ideal state of cleanliness, tidiness and no water stains, providing a strong guarantee for the normal operation and stable operation of the display screen 202, and ensuring that it can continuously and reliably provide operators with clear and accurate information display during the electric vehicle fault diagnosis training process.

[0042] Please refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 7 , Attachment Figure 8 , Attachment Fig. 9 With attached Fig.10 The test bench mechanism 3 includes a test bench 301, a slide groove 302 is provided on the outer side of the test bench 301, rollers 303 are evenly arranged on the top of the test bench 301, a plurality of groups of slide rails 304 are evenly arranged on the outer side of the test bench 301, a ventilation hood 305 is slid between each group of slide rails 304, a circular hole 307 is provided on the inner side of the ventilation hood 305, a clamping plate 306 is provided on the inner side of the ventilation hood 305, a plurality of ventilation holes 308 are provided inside the test bench 301, a heating pipe 309 is provided inside the ventilation hole 308, a buckle mechanism 7 is evenly arranged on the outer side of the test bench 301, and a dryer 11 is provided on the inner wall of the training workbench 1;

[0043] The test bench 301 in the test bench mechanism 3 is the main structure of the entire test bench mechanism 3, and undertakes the important task of supporting and fixing other components, providing a stable working platform for simulating the operating environment of electric vehicles and performing fault detection; a slide groove 302 is provided on the outside of the test bench 301, and the slide groove 302 provides a sliding track for the pulley 402 of the monitoring mechanism 4, so that the monitoring mechanism 4 can move flexibly on the outside of the test bench 301, which is convenient for monitoring and data collection of components at different positions, and improves the flexibility and comprehensiveness of detection; rollers 303 are evenly spaced on the top of the test bench 301, and the rollers 303 are used to support the chassis 8 of the electric vehicle. When simulating the driving state of the vehicle, the chassis 8 can be placed in a state similar to that of actual driving. The rolling state of the vehicle can be more realistically simulated, and the stress and working conditions of the vehicle during driving can be provided, so as to provide more accurate test conditions for fault diagnosis; multiple sets of slide rails 304 are equidistantly arranged on the outside of the test bench 301, and the slide rails 304 provide guidance and support for the installation and sliding of the ventilation hood 305, so that the ventilation hood 305 can be conveniently installed on the outside of the test bench 301, and can be adjusted in position as needed, so as to ensure the flexibility and effectiveness of the ventilation system; ventilation hoods 305 are slid between each set of slide rails 304, and the ventilation hoods 305, as an important part of the ventilation system, can evenly distribute cold air or hot air in the test area, and adjust the temperature environment on the top of the test bench 301 to meet different test requirements, simulating electric vehicles. Working conditions in different seasons and road conditions; circular holes 307 are provided on the inner side of the ventilation hood 305, and the circular holes 307 serve as ventilation channels, so that air can flow smoothly inside the ventilation hood 305, ensuring the uniformity and stability of temperature regulation; a clamping plate 306 is provided on the inner side of the ventilation hood 305, and the clamping plate 306 cooperates with the clamping rod 2 702 of the buckle mechanism 7, and the position of the ventilation hood 305 is fixed by a clamping connection to prevent it from being displaced or shaken during operation, thereby ensuring the stability and reliability of the ventilation system; a plurality of ventilation holes 308 are provided inside the test bench 301, and the ventilation holes 308 are connected with the circular holes 307 of the ventilation hood 305 to form a complete ventilation channel, so that cold air or hot air can be 301 is internally circulated to achieve effective regulation of the temperature of the test area; the interior of the ventilation holes 308 is provided with heating tubes 309, which serve as heat sources and can generate heat when a high-temperature environment needs to be simulated. The hot air is circulated in the ventilation holes 308 and the ventilation hood 305 by the action of the fan 10, thereby creating a high-temperature working environment for components such as the chassis 8 and the battery 9 of the electric vehicle, so as to study the influence of high temperature on the performance and reliability of the components; buckle mechanisms 7 are equidistantly arranged on the outside of the test bench 301, and the buckle mechanisms 7 are used to fix the ventilation hood 305 to ensure the stability and reliability of the ventilation system during operation, and to avoid the loosening or displacement of the ventilation hood 305 affecting the effect of temperature simulation and the accuracy of the test results;The inner wall of the training workbench 1 is provided with a dryer 11. After the cleaning mechanism 6 cleans the display screen 202, the dryer 11 can dry the display screen 202 and the surrounding environment to remove residual moisture, prevent electrical failures and equipment damage caused by a humid environment, and ensure the normal operation and service life of the equipment;

[0044] The buckle mechanism 7 includes a square box 701, which is arranged on the outside of the test bench 301, and a second slider 704 is slid inside the test bench 301, and a second spring 703 is arranged between the second slider 704 and the inner wall of the square box 701, and a second clamping rod 702 and a slide plate 705 are respectively arranged on the outside of the second slider 704, and the second clamping rod 702 is engaged with the positioning hole of the corresponding clamping plate 306;

[0045] The square boxes 701 in the snap mechanism 7 are all arranged on the outside of the test bench 301, serving as the main body shell of the snap mechanism 7, providing installation space and protection for the internal slider 2 704, spring 2 703 and other components, ensuring the stability and reliability of the snap mechanism 7; the inside of the test bench 301 is provided with a slider 2 704, which can slide flexibly inside the test bench 301 under the elastic force of the spring 2 703, driving the clamping rod 2 702 to achieve the clamping and separation operation with the clamping plate 306 of the ventilation hood 305; the spring 2 703 is arranged between the slider 2 704 and the inner wall of the square box 701, and the spring 2 703 provides elastic force for the slider 2 704, so that the clamping rod 2 702 can be tightly clamped into the positioning hole of the clamping plate 306 of the ventilation hood 305, ensuring that the ventilation hood 305 is firmly and reliably fixed, and it is also convenient to adjust the ventilation hood 305 when necessary. When the hood 305 is in the closed position, the elastic force of the second spring 703 is overcome by external force to separate the second clamping rod 702 from the clamping plate 306; the outer side of the second slider 704 is respectively provided with a second clamping rod 702 and a slide plate 705. The second clamping rod 702 is a key component that is engaged with the clamping plate 306 of the ventilation hood 305, and directly realizes the fixing of the ventilation hood 305. The slide plate 705 facilitates the operator to act on the second slider 704 through external force. For example, when installing or removing the ventilation hood 305, the slide plate 705 is pushed to drive the second slider 704 to move, thereby realizing the engagement or separation operation of the second clamping rod 702 and the clamping plate 306, thereby improving the convenience and efficiency of the operation; the second clamping rod 702 is engaged with the positioning hole of the corresponding clamping plate 306. This engagement method can accurately fix the position of the ventilation hood 305, ensure the sealing and stability of the ventilation system, and provide reliable protection for simulating different temperature environments;

[0046] A monitoring mechanism 4 is arranged on the outside of the test bench mechanism 3, and the monitoring mechanism 4 includes a pulley 402, and the pulleys 402 all slide on the inner side of the slide groove 302, and the pulleys 402 are all arranged on the inner side of the slider 1 401, and a U-shaped rod 403 is arranged between the tops of the slider 1 401, and a plurality of placement plates 405 are equidistantly arranged on the outside of the U-shaped rod 403, and a voltage sensor 406, a current sensor 407, a humidity sensor 408, a temperature sensor 409 and a pressure sensor 4010 are arranged on the top of the placement plate 405, respectively, and the U-shaped rod 403 is connected with the corresponding voltage sensor 406, current sensor 407, humidity sensor 408, temperature sensor 409 and pressure sensor 4010 through a spring tube 404, and the voltage sensor 406, current sensor 407, humidity sensor 408, temperature sensor 409 and pressure sensor 4010 transmit the collected data to the central control system;

[0047] The monitoring mechanism 4 is equipped on the outside of the test bench mechanism 3, wherein the pulley 402 slides on the inside of the slide groove 302. This sliding fit enables the monitoring mechanism 4 to move freely on the outside of the test bench 301, so that data collection work can be carried out conveniently on various components on the test bench, which greatly enhances the comprehensiveness and flexibility of monitoring and ensures that data collection of any key parts will not be missed. The pulley 402 is installed on the inside of the slider 401. The slider 401 not only provides a stable placement for the pulley 402, but also builds a solid and reliable support platform for the U-shaped rod 403, which effectively guarantees the monitoring. The stability and reliability of mechanism 4 during the moving process enable it to accurately obtain data during frequent position change detection, avoiding data deviation caused by shaking or displacement. U-shaped rod 403 is built between the top of slider 1 401, and the placement plate 405 is used as a platform for temporarily placing various sensors, so that data can be flexibly collected at different detection points of components such as the chassis 8 and battery 9 of the electric vehicle. Voltage sensor 406, current sensor 407, humidity sensor 408, temperature sensor 409 and pressure sensor 4010 are temporarily placed on the placement plate 405, such as voltage sensor 406, when temporarily placed at a specific detection position of the battery 9 and related circuits, can capture the voltage status of the battery 9 and the circuit in real time, and through accurate monitoring of the dynamic changes of the voltage, can keenly judge whether there are potential fault hazards such as open circuit, short circuit or abnormal voltage fluctuation in the circuit, and provide key basic data and powerful judgment basis for subsequent accurate circuit fault diagnosis. After being temporarily placed at a suitable position, the current sensor 407 can accurately measure the current, deeply analyze the load situation of the circuit according to the fluctuation of the current value, and accurately judge whether there is an overcurrent phenomenon, thereby clearly understanding the actual working state of the electronic components, and providing key quantitative indicators and technical support for the troubleshooting of circuit faults and the comprehensive evaluation of system performance. When the humidity sensor 408 is temporarily placed in the surrounding environment of the battery 9 or other key parts, it focuses on detecting subtle changes in environmental humidity. In view of the fact that changes in humidity may have a significant impact on battery performance, stability of electronic components, and insulation performance, etc., through continuous real-time monitoring, it can detect potential fault risks such as short circuits caused by abnormally high humidity in advance, and provide forward-looking early warning information for timely taking preventive measures and optimizing the equipment operating environment.

[0048] Please refer to the attached Fig.11 , the central control system includes:

[0049] Monitoring module: It is used to transmit the data collected by the voltage sensor 406, the current sensor 407, the humidity sensor 408, the temperature sensor 409 and the pressure sensor 4010 to the central control system;

[0050] The monitoring module is a key part of the data acquisition of the electric vehicle fault diagnosis training platform. It is responsible for accurately transmitting the battery and circuit voltage data obtained by the voltage sensor 406, the current data of the current sensor 407, the environmental humidity data of the humidity sensor 408, the component temperature data of the temperature sensor 409, and the pressure data of the pressure sensor 4010 to the central control system. These data are like the "physical examination indicators" of the car, reflecting the operating status of each component. For example, the stability of the voltage is related to the circuit integrity, the current size reflects the load condition, the humidity affects the battery life and component performance, the temperature reflects the heat dissipation and operating conditions, and the pressure data can also reflect the working conditions of the battery and the cooling system, providing basic information for subsequent fault diagnosis;

[0051] Analysis module: It analyzes the data collected in the central control system through the data processing unit;

[0052] With the help of the data processing unit, the analysis module conducts in-depth analysis of the data received by the central control system. For voltage data, it determines whether its fluctuation is abnormal to troubleshoot circuit faults; it analyzes current data to evaluate circuit load and component working conditions; based on humidity data, it predicts potential short-circuit risks; through temperature data, it locates heat dissipation problems; and with pressure data, it determines the stability of the battery and cooling system. By combining these data, the analysis module can accurately diagnose faults, provide targeted solutions, and ensure the safe and efficient operation of electric vehicles.

[0053] Working principle: When conducting electric vehicle fault diagnosis training, the air cooler 12 is started, and the cold air generated enters the ventilation hood 305 through the pipe connected to the ventilation hood 305, and passes through the circular hole 307 on the inner side of the ventilation hood 305 and the ventilation hole 308 inside the test bench 301. Under the action of the fans 10 at both ends of the ventilation hole 308, the cold air is blown to the chassis 8 and battery 9 of the electric vehicle located on the top roller 303 of the test bench 301 to simulate the low temperature environment in winter; or the heating tube 309 works to generate heat, and also under the action of the fan 10, the hot air is blown to the chassis and the battery to simulate the hot air environment of the road in summer. The pulley 402 of the monitoring mechanism 4 slides in the outer slide groove 302 of the test bench 301, driving the slider 40 1 and the U-shaped rod 403 at the top move, so that the voltage sensor 406, current sensor 407, humidity sensor 408, temperature sensor 409 and pressure sensor 4010 on the placement plate 405 are close to the detected component. These sensors are connected to the U-shaped rod 403 through the spring tube 404, and the position can be flexibly adjusted and kept stable. The collected voltage, current, humidity, temperature and pressure data are transmitted to the central control system through the monitoring module. The analysis module uses the data processing unit to analyze the data to assist in judging the fault conditions of the battery and related components. The square box 701 of the buckle mechanism 7 is fixed on the outside of the test bench 301, and the internal slider 704 drives the clamping rod 2 under the elastic force of the spring 2 703. 702 is engaged with the positioning hole of the card plate 306 of the ventilation hood 305, so as to fix the ventilation hood 305 and ensure the stable operation of the ventilation system. In the power mechanism 5 of the display mechanism 2, the motor 502 on the fixed plate 2 501 is started, driving the worm 503 to rotate, and the worm 503 is meshed with the worm wheel 504, so that the worm wheel 504 drives the screw rod 204 to rotate, and the rotation of the screw rod 204 causes the fixed plate 1 203 to slide on the slide bar 205, thereby adjusting the height of the display screen 202, so that the operator can view the fault diagnosis information and related data analyzed and processed by the central control system. The high-pressure pump 601 of the cleaning mechanism 6 extracts the cleaning liquid in the cleaning liquid bottle 602, and transports it to the nozzle 604 through the pipeline. The nozzle 604 is sprayed on the outside of the nozzle 604. The head 605 sprays out to clean the display screen 202. At the same time, the clamping rod 603 on the fixed plate 3 607 on the inner wall of the training workbench 1 fixes the brush 608 on the upper side and the sponge roller 609 on the lower side under the action of the spring 606. The brush 608 is used to brush away stubborn stains on the display screen 202, and the sponge roller 609 is used to absorb the moisture on the display screen 202. After cleaning, the dryer 11 on the inner wall of the training workbench 1 can dry the display screen 202 to keep the display screen 202 clean and dry to ensure its normal operation. The various components of the entire training platform work together to provide comprehensive and efficient support for electric vehicle fault diagnosis training and meet the teaching and practice needs of electric vehicle fault diagnosis under different environmental conditions.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle fault diagnosis training platform, comprising a training workbench (1), characterized in that: A test bench mechanism (3) is arranged at the rear side of the training workbench (1), a display mechanism (2) and a cleaning mechanism (6) are arranged inside the training workbench (1), the front side of the training workbench (1) is connected to a cabinet door (13) via a hinge, a monitoring mechanism (4) is arranged at the outside of the test bench mechanism (3), an electric vehicle chassis (8) is arranged at the top of the test bench mechanism (3), a battery (9) is arranged at the top of the electric vehicle chassis (8), and a cooler (12) is arranged at the right side of the test bench mechanism (3); The test bench mechanism (3) comprises a test bench (301), a slide groove (302) is provided on the outer side of the test bench (301), rollers (303) are evenly spaced on the top of the test bench (301), a plurality of groups of slide rails (304) are evenly spaced on the outer side of the test bench (301), a ventilation hood (305) is slidably disposed between each group of the slide rails (304), a circular hole (307) is provided on the inner side of the ventilation hood (305), a clamping plate (306) is provided on the inner side of the ventilation hood (305), a plurality of ventilation holes (308) are provided inside the test bench (301), a heating pipe (309) is provided inside the ventilation holes (308), and a buckle mechanism (7) is evenly spaced on the outer side of the test bench (301).

2. The electric vehicle fault diagnosis training platform according to claim 1, characterized in that: The monitoring mechanism (4) comprises a pulley (402), each of the pulleys (402) slides on the inner side of the slide groove (302), each of the pulleys (402) is arranged on the inner side of the slider (401), a U-shaped rod (403) is arranged between the tops of the slider (401), a plurality of placement plates (405) are arranged equidistantly on the outer sides of the U-shaped rod (403), and a voltage sensor (406), a current sensor (407), a humidity sensor (408), a temperature sensor (409) and a pressure sensor (410) are arranged on the tops of the placement plates (405). The U-shaped rod (403) is connected to a corresponding voltage sensor (406), a current sensor (407), a humidity sensor (408), a temperature sensor (409), and a pressure sensor (4010) through a spring tube (404), respectively. The voltage sensor (406), the current sensor (407), the humidity sensor (408), the temperature sensor (409), and the pressure sensor (4010) transmit the collected data to the central control system.

3. The electric vehicle fault diagnosis training platform according to claim 1, characterized in that: The snap mechanism (7) comprises a square box (701), each of the square boxes (701) is arranged on the outside of the test bench (301), a second slider (704) is slidably provided inside the test bench (301), a second spring (703) is provided between the second slider (704) and the inner wall of the square box (701), a second clamping rod (702) and a slide plate (705) are respectively provided on the outside of the second slider (704), and the second clamping rod (702) is clamped with a positioning hole of a corresponding clamping plate (306).

4. The electric vehicle fault diagnosis training platform according to claim 1, characterized in that: The display mechanism (2) comprises sliding rods (205), the sliding rods (205) are equidistantly arranged in the display cabinet of the training workbench (1), a fixing plate (203) is arranged between the sliding rods (205), a display screen (202) is arranged on the top of the fixing plate (203), a limiting plate (201) is arranged on the top of the display screen (202), and the display screen (202) passes through the square hole on the top of the training workbench (1), a screw rod (204) is arranged in the middle of the fixing plate (203), a power mechanism (5) is arranged at the bottom end of the screw rod (204), and the top end of the screw rod (204) is rotatably connected to the inside of the training workbench (1).

5. The electric vehicle fault diagnosis training platform according to claim 4, characterized in that: The power mechanism (5) comprises a second fixing plate (501), wherein the second fixing plate (501) is arranged on the inner wall of the training workbench (1), a housing (505) is arranged on the outer side of the second fixing plate (501), a motor (502) is arranged on the outer side of the second fixing plate (501), one end of a worm (503) is arranged at the output end of the motor (502), the other end of the worm (503) is rotatably connected to the inner side of the housing (505), the worm (503) is meshingly connected to a worm wheel (504), and the lower end of a lead screw (204) is arranged on the outer side of the worm wheel (504).

6. The electric vehicle fault diagnosis training platform according to claim 1, characterized in that: The cleaning mechanism (6) comprises a high-pressure pump (601), the high-pressure pump (601) being arranged on the inner bottom side of the training workbench (1), the input end of the high-pressure pump (601) being connected to a cleaning liquid bottle (602) via a pipeline, the output end of the high-pressure pump (601) being connected to a nozzle (604) via a pipeline, a plurality of nozzles (605) being arranged equidistantly on the outer side of the nozzle (604), the nozzle (604) being connected to the training workbench (1) via a connecting rod. The inner top wall of the workbench (1), the inner wall of the training workbench (1) is evenly spaced with a plurality of fixed plates three (607), the outer side of each fixed plate three (607) is slidably provided with a clamping rod one (603), a spring one (606) is provided between each clamping rod one (603) and the fixed plate three (607), a brush (608) is provided between the clamping rods one (603) on the upper side, and a sponge roller (609) is provided between the clamping rods one (603) on the lower side.

7. The electric vehicle fault diagnosis training platform according to claim 1, characterized in that: The ventilation hood (305) is connected to the output end of the air cooler (12) through a pipeline, fans (10) are provided at both ends of the ventilation hole (308), and dustproof nets are provided on the outside of the fans (10).

8. The electric vehicle fault diagnosis training platform according to claim 1, characterized in that: The inner wall of the training workbench (1) is provided with a dryer (11).

9. The electric vehicle fault diagnosis training platform according to claim 2, characterized in that: The central control system comprises: Monitoring module: used to transmit data collected by the voltage sensor (406), the current sensor (407), the humidity sensor (408), the temperature sensor (409) and the pressure sensor (4010) to the central control system; Analysis module: It analyzes the data collected in the central control system through the data processing unit.

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