A testing device for electric vehicles and its usage method

Abstract

This invention relates to the field of electric vehicle testing equipment, specifically a testing device for electric vehicle testing and its usage method. The device includes a testing platform with a testing body on the platform. The testing body has a testing cavity, and a simulation component is arranged within the testing cavity. The simulation component includes a support mechanism mounted on the inner wall of the testing body, and a spraying mechanism is mounted on the support mechanism. The testing body also has a leakage current detection mechanism for detecting vehicle leakage current. This invention discloses a testing device for electric vehicle testing. The setup of this testing device enables vehicle leakage current detection. By controlling the amount of water sprayed by the spraying mechanism, this invention can simulate various rainy weather conditions to test the insulation of electric vehicles.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle testing equipment, specifically to a testing device for electric vehicle testing and its usage method. Background Technology

[0002] Electric vehicles contain high-voltage components such as motor controllers, power batteries, and electric compressors, all of which need to operate under high-voltage conditions.

[0003] Electric vehicles operate in complex environments. Vibration, temperature, humidity, and component aging can all reduce the insulation performance of the vehicle's circuitry, leading to insulation failures.

[0004] The positive and negative terminals of the power battery form a current loop with the chassis through an insulating layer. When the insulation performance of the vehicle's circuit deteriorates, the leakage current will increase. When the leakage current reaches a certain value, it will endanger passenger safety and the normal operation of the vehicle's electrical system.

[0005] Therefore, detecting whether there is an insulation fault in the entire vehicle circuit of an electric vehicle and ensuring that the vehicle operates in an insulated state is of great significance for ensuring passenger safety, normal operation of electrical equipment, and safe operation of the vehicle.

[0006] Since rainy weather can significantly impact the insulation performance of electric vehicles, it is necessary to conduct normal leakage tests on vehicles during rainy weather to ensure the insulation and airtightness of the electric vehicles.

[0007] Traditional electric vehicle leakage detection devices can detect leakage in electric vehicles, but they lack the ability to detect leakage in rainy weather. For example, patent CN210090630U discloses a device for periodically testing leakage protectors, CN210465634U discloses a leakage detection device for electric vehicle batteries, and CN207133377U discloses a leakage detector.

[0008] Therefore, in order to detect leakage current in electric vehicles during rainy weather, it is necessary to optimize the design of existing leakage current detection equipment. Summary of the Invention

[0009] The purpose of this invention is to provide a detection device that can simulate the driving conditions of an electric vehicle in rainy weather to detect whether the electric vehicle is leaking electricity.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0011] A testing device for electric vehicle testing includes a testing platform, a testing body on the testing platform, a testing cavity inside the testing body, and a simulation component arranged inside the testing cavity;

[0012] The simulation component includes a support mechanism disposed on the inner wall of the detection body, and the support mechanism is provided with a spraying mechanism.

[0013] The detection body is equipped with a leakage detection mechanism for detecting vehicle leakage.

[0014] The simulation component is connected to a drive component; the drive component includes a drive unit for controlling the movement of the mounting bracket; the drive unit has two gears mounted on the detection body, and the two gears are connected by a transmission chain; the transmission chain is connected to the mounting bracket.

[0015] The support mechanism includes multiple mounting frames, which are arranged in parallel at intervals. Each mounting frame is equipped with a spraying mechanism. The spraying mechanism includes a spray pipe connected to multiple nozzles, which are arranged on corresponding mounting frames. The mounting frame is hollow to form a placement cavity, and the spray pipe is arranged inside the placement cavity of the mounting frame. Each spraying mechanism is connected to a water supply mechanism.

[0016] The water supply mechanism includes a main water inlet pipe installed inside the detection body, which is connected to a spray mechanism in the corresponding mounting frame via a connecting hose.

[0017] The drive chain is connected to the corresponding mounting frame via a connecting assembly; the connecting assembly includes a mounting body connected to the drive chain, and the conventional chain is connected to the mounting frame via the mounting body.

[0018] The bottom of the detection body has an installation port; the detection platform has a platform sink; the installation port is connected to the platform sink; the platform sink has a lifting support mechanism; the lifting support mechanism includes a lifting platform set in the platform sink, and the lifting platform is connected to the detection body through a sealing layer.

[0019] The lifting platform is connected to a lifting mechanism, which includes a scissor lift structure connected to the lifting platform.

[0020] The lifting platform is connected to the detection body through a support assembly. The support assembly includes a support plate, one end of which is hinged to the lifting platform and the other end of which is hinged to a plate. The support plate is connected to the detection body through the plate.

[0021] The plate is connected to the detection body via a sliding mechanism. The sliding mechanism includes a sliding groove on the detection body, a sliding shaft on the side wall of the plate, and a guide groove on the inner wall of the sliding groove. The plate is connected to the guide groove on the inner wall of the sliding groove via the sliding shaft.

[0022] A method of using a testing device for electric vehicles, the method comprising the following steps:

[0023] Step 1: Assemble the testing equipment and identify the vehicle to be tested;

[0024] Step 2: Send the vehicle to be inspected into the inspection unit and position it above the lifting platform; then adjust the height of the lifting platform.

[0025] Step 3: After completing Step 2, start the water supply mechanism; spray water onto the vehicle to be inspected through the spray mechanism, and let the water collect in the settling tank formed by the lifting platform and the sealing layer; at the same time, ensure that the leakage detection mechanism is in the open state.

[0026] Step 4: After step 3 is completed, start the drive mechanism so that the drive mechanism pulls the mounting bracket to continuously reciprocate inside the detection body;

[0027] Step 5: After completing Step 4, the testers observe the real-time working status of the leakage current detection mechanism and obtain the corresponding test data.

[0028] The advantages of this invention are:

[0029] This invention discloses a testing device for electric vehicles. The device can detect vehicle leakage. By controlling the amount of water sprayed by the spray mechanism, the invention can simulate various rainy weather conditions to test the insulation of electric vehicles. Furthermore, by setting up a drive component, the spray mechanism can be driven to move back and forth along the X-axis of the vehicle, thereby simulating whether rainwater during high-speed driving causes the electric vehicle to have insufficient insulation protection. Attached Figure Description

[0030] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0033] Figure 3 This is a schematic diagram of the combination of the drive component and the mounting bracket of the present invention;

[0034] Figure 4 This is a front view of the connecting component and the locking component of the present invention;

[0035] Figure 5 This is a top view of the connecting component and locking component of the present invention.

[0036] Figure 6This is a front view of the connecting component and locking component of the present invention when they are engaged with the mounting bracket.

[0037] Figure 7 This is a top view of the connection component and locking component of the present invention in cooperation with the mounting bracket.

[0038] Icons: 1. Detection body; 1-1. Detection platform; 1-11. Platform sink; 1-2. Leakage detection mechanism; 2. Mounting frame; 3. Main water inlet pipe; 4. Sheet metal; 5. Nozzle; 6. Chain; 7. Sealing layer; 8. Lifting platform; 9. Scissor structure; 10. Gear; 11. Mounting body; 12. Pressure rod; 13. Fastener; 14. Push rod; 15. Locking rod; 16. Crossbar; 17. Collar; 18. Locking groove; 19. Connecting rod. Detailed Implementation

[0039] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0040] A testing device for electric vehicles includes a testing platform 1-1, a testing body 1 on the testing platform 1-1, a testing cavity 1-3 inside the testing body 1, and a simulation component arranged inside the testing cavity 1-3; the simulation component includes a support mechanism disposed on the inner wall of the testing body 1, and a spraying mechanism disposed on the support mechanism; and a leakage current detection mechanism 1-2 for detecting vehicle leakage current is disposed on the testing body 1.

[0041] This invention discloses a testing device for electric vehicles. The device is designed to detect vehicle leakage current. By controlling the amount of water sprayed by the spraying mechanism, this invention can simulate various rainy weather conditions to test the insulation of electric vehicles.

[0042] Furthermore, by setting the drive components, the spraying mechanism can be driven to move back and forth along the X direction of the vehicle, thereby simulating whether rainwater during high-speed driving of the car will cause the electric vehicle to have insufficient insulation protection.

[0043] Furthermore, the leakage current detection mechanism 1-2 is connected to an external detection lamp to form a circuit, making it convenient for inspectors to observe whether the electric vehicle's insulation performance is good.

[0044] Specifically, the detection equipment disclosed in this invention is mainly used for detecting vehicle leakage current. The detection equipment mainly includes a detection platform 1-1; the detection platform 1-1 provides good support, facilitating the support of the detection body 1. Furthermore, the detection platform 1-1 in this invention has a detection body 1, and the detection body 1 has a detection cavity 1-3 inside. The setting of the detection cavity 1-3 facilitates the arrangement and placement of subsequent module components and drive components, and also facilitates the parking of the vehicle under test, facilitating the subsequent use with simulation components to simulate the vehicle's operating state in rainy weather. Specifically, the detection cavity 1-3 in this invention is equipped with a simulation component; the simulation component includes a support mechanism disposed on the inner wall of the detection body 1, and the support mechanism is equipped with a spray nozzle. The invention includes a spray mechanism; the supporting structure facilitates the installation of the spray mechanism, which in turn facilitates the external spraying of rainwater, thereby enabling the spraying of water onto vehicles and simulating rainy weather conditions. Additionally, the detection body 1 of this invention is equipped with a leakage detection mechanism 1-2 for detecting vehicle leakage. This leakage detection mechanism 1-2 is essentially a circuit loop with a detection light. In actual installation, the circuit loop is initially open, but the water acts as a closed loop. When a vehicle experiences leakage, the leakage current enters the water, making the water energized. This energized water then acts as a power source, illuminating the detection light and allowing personnel to easily observe whether the vehicle is leaking electricity.

[0045] Furthermore, in this invention, the simulation component is connected to a drive component; the drive component includes a drive unit for controlling the movement of the mounting frame 2; the drive unit has two gears 10 mounted on the detection body 1, and the two gears 10 are connected by a transmission chain 6; the transmission chain 6 is connected to the mounting frame 2; the present invention, through the setting of the drive component, facilitates the control of the mounting frame 2 to reciprocate as needed during subsequent use. Specifically, in this invention, the drive component includes a drive unit, which mainly includes two gears 10, which are transmission components. A transmission chain 6 is arranged between the two gears 10. During subsequent use, any one of the two gears 10 can be connected to an external motor, which drives the corresponding gear 10 to rotate, and then the gear 10 drives the transmission chain 6 to rotate, thereby driving the transmission chain 6 to move laterally.

[0046] Furthermore, the support mechanism in this invention includes multiple mounting brackets 2, which are spaced and parallel to each other. The multiple mounting brackets 2 allow for better water spraying onto the entire vehicle, thus better simulating rainy driving conditions. Additionally, each mounting bracket 2 is equipped with a spraying mechanism. This spraying mechanism includes a spray pipe connected to multiple nozzles 5, which are arranged on corresponding mounting brackets 2. The spraying mechanism facilitates subsequent use. The invention sprays water onto a car to simulate rain. As a further optimization, the mounting bracket 2 is hollow, forming a placement cavity, and the spray pipes are arranged inside this cavity. The placement cavity facilitates the arrangement of the spray pipes. Furthermore, to avoid interference, the nozzles 5 are positioned on the mounting bracket 2 and pass through it to connect with the spray pipes. As a further optimization, each spray mechanism is connected to a water supply mechanism. This water supply mechanism primarily supplies water to each spray mechanism and includes a water pump that pumps water to supply the spray.

[0047] Furthermore, the water supply mechanism in this invention includes a main water inlet pipe 3 disposed within the detection body 1. The main water inlet pipe 3 is connected to a spray mechanism within the corresponding mounting frame 2 via a connecting hose. A water pump is connected to the main water inlet pipe 3, and the water pumped out by the water pump enters the main water inlet pipe 3, then enters the connecting hose, and subsequently enters the spray mechanism within the mounting frame 2, thereby achieving the supply of spray water. In addition, in this invention, the main water inlet pipe 3 is arranged within the detection body 1, which allows for the arrangement of the main water inlet pipe 3. At the same time, the spray pipe is arranged within the mounting frame 2, and the mounting frame 2 can also provide protection for the spray pipe.

[0048] Furthermore, in this invention, the drive chain 6 is connected to the corresponding mounting bracket 2 via a connecting component. The connecting component facilitates the connection between the drive chain 6 and the mounting bracket 2. Additionally, the connecting component includes a mounting body 11 connected to the drive chain 6. The conventional chain 6 is connected to the mounting bracket 2 via the mounting body 11. The mounting body 11 acts as a good bridge, facilitating the connection between the drive chain 6 and the mounting bracket 2. The mounting body 11 is connected to the drive chain 6 via a pin. This invention facilitates the connection of the mounting body 11 to the drive chain 6 via the pin. Here, the drive chain is equivalent to a traditional bicycle chain.

[0049] Furthermore, the bottom of the detection body 1 in this invention has an installation port; the installation port serves as a good connection, facilitating the subsequent entry of vehicles into the upgrade support mechanism. Additionally, a platform sink 1-11 is provided on the detection platform 1-1; the platform sink 1-11 serves as a good obstacle avoidance mechanism, facilitating the subsequent downward movement of the upgrade platform. Furthermore, the installation port in this invention is connected to the platform sink 1-11; this arrangement facilitates the subsequent movement of the lifting platform 8 by controlling its position, forming a sink structure to collect water, allowing the battery pack to be immersed in the liquid for better detection of leakage. To form the aforementioned sink structure, a lifting support mechanism is provided within the platform sink 1-11; the lifting support mechanism includes a lifting platform 8 disposed within the platform sink 1-11, and the lifting platform 8 is connected to the detection body 1 via a sealing layer 7. During actual operation, the lifting platform 8 moves longitudinally, forming a bowl-shaped structure with the sealing layer 7, facilitating the accumulation of water and the detection of the battery pack's sealing performance.

[0050] Furthermore, in this invention, the lifting platform 8 is connected to a lifting mechanism, which includes a scissor structure 9 connected to the lifting platform 8. Through the setting of the scissor structure 9, this invention can control the position of the lifting platform 8 during subsequent use, thereby changing the size of the aforementioned sinkhole structure.

[0051] Furthermore, in this invention, the lifting platform 8 is connected to the detection body 1 via a support assembly. The support assembly includes a support plate, one end of which is hinged to the lifting platform 8, and the other end is hinged to the plate 4. The support plate is connected to the detection body 1 via the plate 4. This invention, through the support assembly, provides excellent support and protection, preventing damage to the sealing layer 7 of the car tires. Additionally, in this invention, the plate 4 is connected to the detection body 1 via a sliding mechanism. The sliding mechanism includes a sliding groove on the detection body 1, a sliding shaft on the side wall of the plate 4, and a guide groove on the inner wall of the sliding groove. The plate 4 is connected to the guide groove on the inner wall of the sliding groove via the sliding shaft. Through the above design, when the support plate moves, the plate 4 can move within the sliding groove, avoiding interference between the movement of the support assembly and the detection body 1. Furthermore, through the above design, the detection equipment disclosed in this invention can simulate whether a car's battery will leak or short-circuit due to water erosion when the car exits a puddles.

[0052] A method of using a testing device for electric vehicles, the method comprising the following steps:

[0053] Step 1: Assemble the testing equipment and identify the vehicle to be tested;

[0054] Step 2: Send the vehicle to be inspected into the inspection body 1 and position it above the lifting platform 8; then adjust the height of the lifting platform 8.

[0055] Step 3: After step 2 is completed, start the water supply mechanism; spray water onto the vehicle to be inspected through the spray mechanism, and make the water collect in the settling tank formed by the lifting platform 8 and the sealing layer 7; at the same time, ensure that the leakage detection mechanism 1-2 is in the open state.

[0056] Step 4: After step 3 is completed, start the drive mechanism so that the drive mechanism pulls the mounting bracket 2 to continuously reciprocate inside the detection body 1;

[0057] Step 5: After completing Step 4, the testers observe the real-time working status of the leakage current detection mechanism 1-2; and then obtain the corresponding test data.

[0058] The present invention can detect whether a vehicle under test is leaking electricity through the above detection method.

[0059] specific:

[0060] This invention discloses a testing device for electric vehicles; the testing device disclosed in this invention can perform leakage current detection on the entire electric vehicle, mainly detecting leakage current in the battery pack of the electric vehicle.

[0061] The testing equipment disclosed in this invention has a certain simulation capability, which can simulate the environment of a car driving in the rain; thereby enabling the inspection of the insulation of electric vehicles.

[0062] In a specific implementation of the testing equipment disclosed in this invention, the water output of the nozzle 5 can be controlled by a pressure pump or a water pump to simulate various rainy weather conditions, thereby testing the insulation of electric vehicles.

[0063] Furthermore, the drive component is set to move the drive mounting bracket 2 back and forth along the extension direction of the detection body 1, thereby simulating the scene of rainwater spraying onto an electric vehicle while the car is traveling at high speed.

[0064] In addition, the detection equipment in this invention includes a leakage current detection mechanism 1-2, which is also a loop structure. That is, the leakage current detection module is connected to an external detection lamp to form a loop, which makes it easy for the tester to observe whether the insulation performance of the electric vehicle is good.

[0065] The detection device disclosed in the present invention includes a detection main body 1. Inside the detection main body 1, there is a simulation component for simulating weather. The simulation component includes a mounting frame 2 disposed in the detection main body 1. There are nozzles 5 provided on the mounting frame 2. Inside the mounting frame 2, there is a spray pipe communicated with the nozzles 5. Inside the detection main body 1, there is a driving component for driving multiple mounting frames 2 to move synchronously. The detection main body 1 is provided with a leakage detection module.

[0066] The detection main body 1 of the present invention is welded by a steel frame and steel plates, providing a detection area for electric vehicles. An insulating layer is also laid on the steel frame and steel plates to prevent the steel detection main body 1 from affecting the insulation performance of this device for electric vehicles.

[0067] Moreover, the simulation component disposed inside the detection main body 1 will simulate various rainy weather inside the detection main body 1 to detect the insulation of electric vehicles. The provided mounting frame 2 is in a "冂" shape, and the lower end of the mounting frame 2 is provided with rollers abutted against the bottom of the detection main body 1, facilitating the movement of the mounting frame 2. The interior of the provided mounting frame 2 is hollow, facilitating the installation of the spray pipe. And this pipe is communicated with the main water inlet pipe 3 disposed on the detection main body 1 through a hose by a connector. The provided main water inlet pipe 3 is communicated with tap water or other pipes outside; the provided nozzles 5 adopt the technologies commonly used in the existing technology.

[0068] The water output of the nozzles 5 will be controlled by a pressure pump communicated with the main water pipe, thus simulating various rainy weather to detect the insulation of electric vehicles.

[0069] And the provided driving component will drive the mounting frame 2 to reciprocate along the extension direction of the detection main body 1 inside the detection main body 1, then simulating whether the rain during the high-speed driving of the vehicle causes problems with the insulation protection of the electric vehicle or not; the leakage detection mechanism 1-2 provided in the present invention is equivalent to a leakage detection module. The disclosed leakage detection mechanism 1-2 in the present invention will form a circuit with the detection lamp outside for the detection personnel to observe whether the insulation performance of the electric vehicle is good; if the detection lamp is lit, it indicates that the vehicle to be detected has a fault, and if the detection lamp is not lit, it indicates that the vehicle to be detected is normal.

[0070] The middle part of the provided mounting frame 2 can be telescoped to change its own width; this can improve the application range of the present invention.

[0071] In addition, in the present invention, the driving component includes multiple groups of driving units, and multiple groups of driving units are arranged circumferentially around the detection main body 1 inside the detection main body 1; at least 3 driving units provided in the present invention will provide stable and efficient driving force for at least 4 mounting frames 2 provided, ensuring that this device can detect the insulation of the vehicle with high efficiency when simulating various rainy weather.

[0072] In this invention, the driving unit includes two gears 10 rotatably mounted on the detection body 1. A connecting chain 6 is sleeved on the two gears 10 and is connected to them for transmission. The connecting chain 6 is provided with multiple connecting components connected to the mounting bracket 2. The above structure is configured to transmit power through the gears 10 and the connecting chain 6. Subsequently, the mounting body 11 is driven by a drive motor to quickly change position, ensuring that the detection device disclosed in this invention can quickly simulate various rainy weather conditions and detect the insulation of automobiles with high efficiency.

[0073] In addition, the connecting component in this invention includes a U-shaped mounting body 11. A mounting groove is provided on the outer side wall of the mounting body 11. Two pressure rods rotatably are provided in the mounting groove. A fastener 13 adapted to the mounting body 11 is provided between the two pressure rods 12. A locking component for locking the mounting frame 2 is provided in the mounting groove. The mounting body 11 is connected to the outer end of the connecting chain 6 by a pin. The mounting groove, the pressure rods 12 rotatably provided in the mounting groove by the pin, and the fastener 13 will force the mounting frame 2 to be fixed on the mounting body 11 by the locking component, so as to prevent the mounting frame 2 from loosening on the mounting body 11 and affecting the normal operation of the equipment. The locking component will lock the mounting frame 2 to prevent the mounting frame 2 from suddenly falling out of the mounting groove and affecting the fixation of the mounting body 11. The number of mounting frames 2 can also be increased later to achieve the ability of quick disassembly or quick installation.

[0074] The locking assembly includes a push rod 14. Two grooves are formed on the side wall of the mounting body 11 with the mounting slot as the axis of symmetry. An arc-shaped locking rod 15 is rotatably mounted within each groove. The locking rod 15 is hinged to the push rod 14. The push rod 14 is slidably positioned between the two pressure rods 12. A locking groove 18, adapted to the pressure rod 12, is provided at the free end of the locking rod 15. The push rod 14 slides between the two pressure rods 12 via a crossbar 16 mounted on it and a collar 17 sleeved on the pressure rod 12. The push rod 14 is hinged to the two locking rods 15 via a connecting rod 19.

[0075] In actual use, the locking element, which is a combination of pressure rod 12 and fastener 13, is pressed towards the mounting groove. Then, the push rod 14, which is slidably set on any one of the pressure rods 12, applies downward pressure to the two locking rods 15, forcing the arc-shaped locking rods 15 to tilt towards the pressure rod 12. As the pressure rod 12 is gradually placed into the locking groove 18, the locking rod 15 will contact the mounting bracket 2 until the mounting bracket 2 is locked in the locking groove 18, and the push rod 14 and fastener 13 are both placed in the locking groove 18.

[0076] In practice, to avoid interference, the mounting bracket is required to sway to prevent the horizontal placement of the pressure bar from causing interference and affecting the lateral entry of the mounting bracket.

[0077] In addition, with Figure 6As shown; the swing direction of the pressure rod and fastener 13 is to swing with the mounting groove as the center point, and the initial swing direction is upward.

[0078] The bottom of the testing body 1 has an installation port, and a lifting platform 8 is installed inside the installation port. The lifting platform 8 is equipped with a scissor lift assembly that drives its lifting and lowering. A ring-shaped sealing layer 7 is provided between the lifting platform 8 and the installation port, and two sets of support assemblies are also provided between the lifting platform 8 and the installation port. The above settings can simulate water accumulation on the ground during rainy weather. At this time, the bottom of the electric vehicle may be placed in a puddle, and the battery will come into contact with the water. Since the battery wiring harness connector is exposed to the outside, it is easy to cause a short circuit when exposed to water. The above interface is used to test the insulation of the electric vehicle as much as possible.

[0079] The aforementioned scissor structure 9 is existing technology and will not be described in detail here.

[0080] In addition, in this invention, the support assembly includes a support plate, one end of which is hinged to the lifting platform 8, and the other end of which is slidably connected to the opening end of the mounting port near the detection body 1. The support plate is made of multiple plates 4 spliced ​​together by connecting shafts, and the bottom of the detection body 1 is provided with multiple through grooves adapted to the plates 4. The side wall of the plates 4 is provided with a sliding shaft, and the inner wall of the through groove is provided with a guide groove adapted to the sliding shaft. The plates 4 are rotatably mounted at the end of the lifting platform 8 by a pin. This arrangement can simulate whether the car battery will leak or short-circuit due to water erosion when the car exits a pothole from a flooded road.

[0081] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0082] The detection equipment disclosed in this invention mainly addresses the problem in the prior art that leakage current is not detected after the electric vehicle is manufactured.

[0083] This invention discloses a testing device relating to the field of electric vehicle testing technology. It mainly includes a testing body 1, within which a simulation component for simulating weather conditions is provided. The simulation component includes multiple mounting brackets 2 disposed within the testing body 1, each mounting bracket 2 having a nozzle 5. A pipe communicating with the nozzle 5 is located within each mounting bracket 2. A drive assembly within the testing body 1 drives the multiple mounting brackets 2 to move synchronously. The testing body 1 also includes a leakage current detection module. The drive assembly drives the mounting brackets 2 to reciprocate along the extension direction of the testing body 1, thereby simulating whether rainwater during high-speed vehicle operation causes insulation deficiencies in the electric vehicle. Furthermore, the leakage current detection mechanism 1-2 is connected to an external detection lamp to form a circuit, facilitating the inspection personnel's observation of the electric vehicle's insulation performance.

[0084] Obviously, the specific implementation of this invention is not limited to the above-described methods. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. A testing device for electric vehicles, characterized in that, The system includes a testing platform, which has a testing body, a testing cavity inside the testing body, and a simulation component arranged inside the testing cavity. The simulation component includes a support mechanism disposed on the inner wall of the detection body. The support mechanism includes multiple mounting brackets, which are distributed in parallel at intervals. Each mounting bracket is equipped with a spraying mechanism. The detection body is equipped with a leakage detection mechanism for detecting vehicle leakage. The bottom of the detection body is provided with an installation port; the detection platform is provided with a platform sink; the installation port is connected to the platform sink; a lifting support mechanism is provided in the platform sink; the lifting support mechanism includes a lifting platform set in the platform sink, and the lifting platform is connected to the detection body through a sealing layer; The lifting platform moves longitudinally, forming a bowl-shaped structure with the sealing layer; The lifting platform is connected to a lifting mechanism, which includes a scissor structure connected to the lifting platform. The lifting platform is connected to the detection body via a support assembly. The support assembly includes a support plate, one end of which is hinged to the lifting platform, and the other end is hinged to a plate. The support plate is connected to the detection body via the plate. The plate is connected to the detection body via a sliding mechanism. The sliding mechanism includes a sliding groove on the detection body, a sliding shaft on the side wall of the plate, and a guide groove on the inner wall of the sliding groove. The plate is connected to the guide groove on the inner wall of the sliding groove via the sliding shaft. The simulation component is connected to a drive component; the drive component includes a drive unit for controlling the movement of the mounting bracket. The drive unit includes two gears rotatably mounted on the detection body, and the two gears are fitted with transmission connections thereto. Drive chain The drive chain is equipped with multiple connecting components that connect to the mounting bracket; The connecting assembly includes a U-shaped mounting body with a mounting groove on its outer side wall. Two pressure rods are rotatably mounted in the mounting groove, and a fastener adapted to the mounting body is provided between the two pressure rods. A locking assembly for locking the mounting bracket is provided in the mounting groove. The mounting body is snapped onto the outer end of the drive chain by a pin, and the mounting groove, the pressure rod that is rotated in the mounting groove by the pin, and the fastener will force the mounting bracket to be fixed on the mounting body through the locking assembly. The locking assembly includes a push rod. Two grooves are formed on the side wall of the mounting body with the mounting groove as the axis of symmetry. An arc-shaped locking rod is rotatably provided in the groove. The locking rod is hinged to the push rod. The push rod is slidably disposed between the two pressure rods. A locking groove adapted to the pressure rod is provided at the free end of the locking rod. The push rod slides between the two pressure rods via a crossbar mounted on itself and a collar sleeved on the pressure rod; the push rod is hinged to the two locking rods via a connecting rod. In use, the locking element, which is a combination of pressure rod and fastener, is pressed towards the mounting groove. Then, the push rod, which is slidably set on any one of the pressure rods, applies downward pressure to the two locking rods, forcing the arc-shaped locking rods to tilt towards the pressure rods. As the pressure rods are gradually placed into the locking groove, the locking rods will contact the mounting bracket until the mounting bracket is locked in the locking groove, and both the push rod and the fastener are placed in the locking groove.

2. The testing equipment for electric vehicle testing according to claim 1, characterized in that, The spraying mechanism includes a spray pipe connected to multiple nozzles, which are arranged on corresponding mounting frames. The mounting frame is hollow to form a placement cavity, and the spray pipe is arranged inside the placement cavity of the mounting frame. Each spraying mechanism is connected to a water supply mechanism.

3. The testing equipment for electric vehicle testing according to claim 2, characterized in that, The water supply mechanism includes a main water inlet pipe installed inside the detection body, which is connected to a spray mechanism in the corresponding mounting frame via a connecting hose.

4. The method of using the testing equipment for electric vehicle testing as described in any one of claims 1-3, characterized in that, The method of use includes the following steps: Step 1: Assemble the testing equipment and identify the vehicle to be tested; Step 2: Send the vehicle to be inspected into the inspection unit and position it above the lifting platform; then adjust the height of the lifting platform. Step 3: After completing Step 2, start the water supply mechanism; spray water onto the vehicle to be inspected through the spray mechanism, and let the water collect in the settling tank formed by the lifting platform and the sealing layer; at the same time, ensure that the leakage detection mechanism is in the open state. Step 4: After step 3 is completed, start the drive mechanism so that the drive mechanism pulls the mounting bracket to continuously reciprocate inside the detection body; Step 5: After completing Step 4, the testers observe the real-time working status of the leakage current detection mechanism and obtain the corresponding test data.

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