New energy automobile charging and discharging performance testing device

Abstract

The invention discloses a new energy automobile charging and discharging performance testing device, and belongs to the field of new energy gas logging detection, the testing device comprises a charging testing device body and a discharging testing device body which are arranged on a base station, and the discharging testing device body comprises a fixed plate fixedly arranged on the base station and a movable plate movably arranged on the base station; a shielding structure is arranged on the discharge testing device body; the shielding structure comprises first protection plates symmetrically arranged at the upper end of the fixed plate, second protection plates symmetrically arranged at the upper end of the movable plate, baffles arranged on the sides, close to automobile tires, of the first protection plates and the second protection plates, and first protection pads fixedly arranged at the ends, away from the baffles, of the first protection plates and the second protection plates. Through the design of the shielding structure, splashes ejected from the high-speed rotating tire are effectively blocked, and the risk that detection personnel are accidentally injured is prevented. Meanwhile, due to the introduction of the first protection pad, the injury degree of the detection personnel during falling or accidental collision is greatly reduced.

Description

Technical Field

[0001] The present application relates to the field of new energy gas testing technology, and specifically to a new energy vehicle charging and discharging performance testing device. Background Art

[0002] With the rapid development of electric and hybrid vehicle technologies, the charge and discharge performance testing of vehicle battery systems has become a key link in ensuring vehicle safety and endurance. The discharge test conducted on a vehicle chassis tester is one of the important means of evaluating the performance of a vehicle's power system.

[0003] However, during this test, when the test vehicle is placed on the chassis test machine, its tires rotate at high speed under the action of the drive system to simulate the actual driving state. At this time, if there are pebbles or other hard particles in the test environment, these objects are easily thrown out and splashed at high speed under the centrifugal force generated by the high-speed rotation of the tires. If these pebbles unfortunately hit the test personnel, it may cause serious physical injuries, such as scratches, impact injuries, etc., posing a direct threat to the safety of the test personnel.

[0004] In addition, during the test, the inspectors need to observe or operate the relevant equipment at close range, and sometimes they may fall due to improper operation, slippery ground or other unexpected situations. Once they fall and hit the high-speed rotating tire, due to the hard texture and high-speed movement characteristics of the tire, it is very likely to cause serious physical injuries, including but not limited to fractures, internal organ damage, etc., which poses a great risk to the personal safety of the inspectors.

[0005] Therefore, the present application provides a new energy vehicle charging and discharging performance testing device to solve the above problems. Summary of the invention

[0006] The present application provides a new energy vehicle charging and discharging performance testing device, which aims to solve the problems raised in the background technology in the existing automobile charging and discharging performance testing process, such as the risk of small stones flying and falling and impact caused by the high-speed rotation of the tires, which has become an important factor restricting the safe conduct of the testing operation; at the same time, during the test process, due to improper operation, slippery ground or other unexpected situations, falls may cause the body to hit the high-speed rotating tires, causing serious physical injuries to the test personnel.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a new energy vehicle charging and discharging performance test device, comprising a charging test device body and a discharging test device body arranged on the base for performing charging and discharging performance tests on the new energy vehicle; the discharging test device body comprises a fixed plate fixedly arranged on the base, a movable plate movably arranged on the base, and a driving member arranged on the base for driving the movable plate to move closer to or away from the fixed plate, and the fixed plate and the movable plate are symmetrically provided with double rods for positioning and rotating the tire;

[0008] In order to prevent the stones hitting the high-speed rotating tire from flying out and causing injuries to the inspectors, and to prevent the slippery ground from causing accidents caused by the inspectors falling and hitting the high-speed rotating tires: the main body of the discharge test device is provided with a shielding structure for shielding the automobile tires, and the shielding structure includes a first guard plate symmetrically arranged at the upper end of the fixed plate corresponding to the automobile tire, a second guard plate symmetrically arranged at the upper end of the movable plate corresponding to the automobile tire, a baffle plate arranged on the side of the first guard plate and the second guard plate close to the automobile tire for blocking the particles ejected from the tire, and a first protective pad fixedly arranged at the end of the first guard plate and the second guard plate away from the baffle plate for reducing the impact force generated by the personnel on the first guard plate and the second guard plate. When conducting the discharge test, first park the new energy vehicle in the test area, and position and fix the tires by double rods. Next, start the discharge test program, and the first guard plate, the second guard plate and the baffle of the shielding structure together form a safety barrier, which effectively blocks the splashes ejected from the tires. If the inspector accidentally falls or an accidental collision occurs, the first protective pad will provide a soft buffer, reduce the impact force, and protect the safety of the personnel. During the entire testing process, the continuous function of the shielding structure ensures the safety of the testing environment and the protection of the testers.

[0009] Preferably, in order to reduce the impact force of the flying stones on the first guard plate and the second guard plate: the first guard plate and the two baffles, as well as the second guard plate and the two baffles, are provided with a second protective pad for cushioning the particles ejected from the tire. The addition of the second protective pad significantly enhances the shielding structure's ability to protect against flying particles. Even in extreme cases, such as when a large stone hits the guard plate at high speed, the damage to the guard plate caused by the impact force can be reduced through the buffering effect, thereby extending the service life of the shielding structure.

[0010] Preferably, in order to facilitate the interception of stones hitting the first guard plate and the second guard plate: the baffle is L-shaped. The L-shaped design enables the baffle to have a larger interception area and a longer interception path, thereby being able to more effectively intercept stones and other particles ejected from the tire.

[0011] Preferably, in order to facilitate the storage of the shielding structure when not in use and avoid external corrosion: a storage mechanism for storing the first guard plate and the second guard plate is provided in the base, the storage mechanism includes a protective cover plate symmetrically fixedly plugged into the fixed plate and the movable plate and extending to the inside of the base, the first guard plate and the second guard plate are both plugged into the upper end of the protective cover plate, and a lifting member for driving the first guard plate and the second guard plate to rise and fall synchronously is provided inside the base. The design of the storage mechanism allows the first guard plate and the second guard plate to be conveniently stored inside the base when not in use, avoiding the occupation of extra space and simplifying the operation process.

[0012] Preferably, the lifting component includes a synchronization plate symmetrically arranged inside the base and connected to the first guard plate and the second guard plate for driving the first guard plate and the second guard plate to move synchronously, a double-headed hydraulic cylinder fixedly installed inside the base, a first hinge seat fixedly arranged at the output end of the double-headed hydraulic cylinder, a support plate hinged on the first hinge seat, and a second hinge seat hinged on the top of the support plate and fixedly connected to the lower end of the synchronization plate. The high synchronization and stability of the first guard plate and the second guard plate during the lifting process are ensured by the precise coordination and coordinated work of the synchronization plate, the double-headed hydraulic cylinder, the first hinge seat, the support plate, and the second hinge seat. The use of the double-headed hydraulic cylinder as the power source improves the accuracy and response speed of the lifting control, making the lifting movement of the guard plate more stable and precise.

[0013] Preferably, in order to facilitate the second guard plate to move synchronously with the movable plate, ensure that the second guard plate is always located on the outer side of the corresponding tire on the movable plate: a connecting plate fixedly connected to the synchronous plate is fixedly connected to the top between the two first guard plates, a sliding plate is fixedly connected to the top between the two second guard plates, and the sliding plate is slidably mounted on the synchronous plate, and a vertical groove for the connecting plate and the sliding plate to be lifted and lowered is provided on the side of the protective plate close to the car. The fixed connection between the connecting plate and the synchronous plate and the sliding mounting design of the sliding plate on the synchronous plate ensure that the second guard plate can move closely following the movement of the movable plate, thereby improving the overall tracking performance and positioning accuracy of the shielding structure.

[0014] Preferably, in order to prevent the connection plate and the sliding sleeve plate from bending during the lifting process: a reinforcing plate fixedly connected to the bottom of the protective sleeve plate is provided inside the base, and a T-shaped rod fixedly connected to the upper end of the reinforcing plate is inserted on the connection plate and the sliding sleeve plate. The design of the reinforcing plate and the T-shaped rod significantly enhances the rigidity of the connection plate and the sliding sleeve plate, prevents bending due to uneven force or weak structure during the lifting process, and improves the stability and reliability of the entire shielding structure.

[0015] Preferably, the driving member comprises a hydraulic cylinder fixedly mounted inside the base, and the output end of the hydraulic cylinder is fixedly connected to the lower end of the movable plate. The hydraulic cylinder has the characteristics of fast response speed, large thrust and good stability, and can ensure that the movable plate remains stable and without shaking during the lifting process, thereby improving the accuracy and reliability of the test.

[0016] In the process of conducting discharge performance test on the automobile, the first guard plate, the second guard plate and the baffle of the shielding structure together form a safety barrier, which effectively blocks the splashing objects ejected from the tire. If the tester accidentally falls or has an accidental collision, the first pad will provide soft cushioning to reduce the impact force and protect the safety of the personnel. During the entire test process, the continuous effect of the shielding structure ensures the safety of the test environment and the protection of the testers.

[0017] The present application not only can effectively store the first guard plate and the second guard plate when not in use through the storage mechanism to prevent them from being corroded by the external environment, but also simplifies the operation process and improves work efficiency through the automatic lifting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a new energy vehicle charging and discharging performance testing device;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure in which the shielding structure is connected to the protective cover plate;

[0020] Figure 3 for Figure 2 Schematic diagram of the other side of the structure;

[0021] Figure 4 for Figure 1 Structural cross-sectional view in ;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure in which the shielding structure is connected to the collecting mechanism;

[0023] Figure 6 for Figure 5 Bottom view of the lifting component in FIG.

[0024] In the figure:

[0025] 1. Base; 2. Charging test device body; 3. Discharging test device body; 31. Fixed plate; 32. Movable plate; 33. Driving member; 331. Hydraulic cylinder; 34. Double rod; 4. Shielding structure; 41. First guard plate; 42. Second guard plate; 43. Baffle; 44. First protective pad; 45. Second protective pad; 5. Storage mechanism; 51. Protective sleeve; 511. Vertical groove; 52. Lifting member; 521. Synchronous plate; 5211. Connecting plate; 5212. Sliding sleeve; 522. Double-head hydraulic cylinder; 523. First articulated seat; 524. Support plate; 525. Second articulated seat; 6. Reinforcement plate; 61. T-bar. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] This embodiment provides a new energy vehicle charging and discharging performance testing device, such as Figure 1-6 As shown, the test device includes a charging test device body 2 and a discharging test device body 3 which are arranged on a base 1 for testing the charging and discharging performance of new energy vehicles; the discharging test device body 3 includes a fixed plate 31 fixedly arranged on the base 1, a movable plate 32 movably arranged on the base 1, and a driving member 33 arranged on the base 1 for driving the movable plate 32 to move closer to or away from the fixed plate 31, and the fixed plate 31 and the movable plate 32 are symmetrically provided with double rods 34 for positioning and rotating the tire; wherein the fixed plate 31 and the movable plate 32 together constitute an adjustable spacing suitable for vehicles of different lengths, the fixed plate 31 is fixed on the base 1, and the movable plate 32 is moved in the horizontal direction by the driving member 33, so as to accurately adjust the distance between the fixed plate 31 and the movable plate 31.

[0028] Specifically, the driving member 33 includes a hydraulic cylinder 331 fixedly installed inside the base 1, and the output end of the hydraulic cylinder 331 is fixedly connected to the lower end of the movable plate 32. The hydraulic cylinder 331 has the characteristics of fast response speed, large thrust, and good stability, which can ensure that the movable plate 32 remains stable and has no shaking during the lifting process, thereby improving the accuracy and reliability of the test.

[0029] In order to prevent stones from flying and hitting the high-speed rotating tires and causing injuries to the inspectors, and to prevent the inspectors from falling and hitting the high-speed rotating tires due to the slippery ground and causing accidents: a shielding structure 4 for shielding the automobile tires is arranged on the main body 3 of the discharge test device, and the shielding structure 4 includes a first guard plate 41 symmetrically arranged at the upper end of the fixed plate 31 corresponding to the automobile tire, a second guard plate 42 symmetrically arranged at the upper end of the movable plate 32 corresponding to the automobile tire, a baffle 43 arranged on the side of the first guard plate 41 and the second guard plate 42 close to the automobile tire for blocking particles ejected from the tire, and a first protective pad 44 fixedly arranged at the end of the first guard plate 41 and the second guard plate 42 away from the baffle 43 for reducing the impact force generated by personnel on the first guard plate 41 and the second guard plate 42. Among them, the first protective pad 44 is arranged at the end of the first guard plate 41 and the second guard plate 42 away from the baffle 43, that is, the side facing the inspector. The first protective pad 44 is made of soft, energy-absorbing materials, such as sponge, foam rubber, etc., to reduce the impact force when the inspector collides with the guard plate in an accidental situation, and further ensure the safety of the personnel. Through the design of the shielding structure 4, the splashes ejected from the high-speed rotating tire are effectively blocked, preventing the risk of accidental injury to the inspector. At the same time, the introduction of the first protective pad 44 also greatly reduces the degree of injury to the inspector when falling or accidentally colliding. When conducting a discharge test, the new energy vehicle is first parked in the test area, and the tire is positioned and fixed by the double rod 34. Next, the discharge test program is started, and the first guard plate 41, the second guard plate 42 and the baffle 43 of the shielding structure 4 together form a safety barrier, which effectively blocks the splashes ejected from the tire. If the inspector accidentally falls or collides accidentally, the first protective pad 44 will provide a soft buffer, reduce the impact force, and protect the safety of the personnel. During the entire test process, the continuous action of the shielding structure 4 ensures the safety of the test environment and the protection of the inspector.

[0030] Specifically, in order to reduce the impact force of the flying stones on the first guard plate 41 and the second guard plate 42: the first guard plate 41 and the two baffles 43 and the second guard plate 42 and the two baffles 43 are provided with a second pad 45 for buffering the particles ejected from the tire. Among them, the second pad 45 is made of a material with high elasticity, high wear resistance and excellent impact resistance, such as rubber, silicone or a special synthetic elastomeric material. These materials can not only effectively absorb and disperse the impact force, but also maintain a good shape and performance during long-term use. The addition of the second pad 45 significantly enhances the protection ability of the shielding structure 4 against flying particles. Even in extreme cases, such as when large stones hit the guard plate at high speed, the damage caused by the impact force to the guard plate can be reduced by the buffering effect, thereby extending the service life of the shielding structure 4. When the tires of new energy vehicles rotate at high speed on the discharge test device, flying stones and other particles may be generated. These particles will first contact the second pad 45 when they hit the first guard plate 41, the second guard plate 42 or the baffle 43. The second pad 45 uses its high elasticity and impact resistance to quickly absorb and disperse the impact force, thereby slowing down the speed of the particles and reducing their energy. The remaining impact force will then be further absorbed and dispersed by the main part of the shielding structure 4 to ensure the safety and stability of the entire test process. In this way, the second pad 45 and the shielding structure 4 together form an efficient and reliable protection system that effectively ensures the safety of the test personnel and test equipment.

[0031] Further, in order to facilitate the interception of stones that hit the first guard plate 41 and the second guard plate 42: the baffle 43 is L-shaped. Among them, the baffle 43 adopts an L-shaped structure, that is, its cross section is in a right angle shape. This design enables the baffle 43 to have a longer interception surface in the vertical direction, which can more effectively block the stones ejected from the side of the tire. At the same time, the bottom of the L-shaped structure is closely connected to the first guard plate 41 or the second guard plate 42 to form a stable support structure, which enhances the overall stability. The L-shaped design enables the baffle 43 to have a larger interception area and a longer interception path, so that it can more effectively intercept particles such as stones ejected from the tire. During the discharge test, when the tire of the new energy vehicle rotates at high speed and generates flying stones and other particles, these particles will first hit the first guard plate 41 or the second guard plate 42, and then hit the L-shaped baffle 43 along the first guard plate 41 or the second guard plate 42. Since the baffle 43 has a larger interception area and a longer interception path, it can more effectively block the flight trajectory of the particles. At the same time, the L-shaped structure of the baffle 43 also provides a stable support base for it, so that the baffle 43 is not easily deformed or displaced when impacted. In this way, the L-shaped baffle 43, the first guard plate 41, the second guard plate 42 and the second pad 45 together form an efficient and reliable protection system, which effectively ensures the safety and stability of the test process.

[0032] In order to facilitate the storage of the shielding structure 4 when not in use to avoid corrosion from the outside: a storage mechanism 5 for storing the first guard plate 41 and the second guard plate 42 is provided in the base 1. The storage mechanism 5 includes a protective cover plate 51 that is symmetrically fixed and plugged into the fixed plate 31 and the movable plate 32 and extends to the inside of the base 1. The first guard plate 41 and the second guard plate 42 are both plugged into the upper end of the protective cover plate 51. The inside of the base 1 is provided with a lifting component 52 for driving the first guard plate 41 and the second guard plate 42 to rise and fall synchronously. The storage mechanism 5 can not only effectively store the first guard plate 41 and the second guard plate 42 when not in use to prevent them from being corroded by the external environment, but also simplify the operation process and improve work efficiency through the automatic lifting component 52. Among them, the protective cover plate 51 is made of high-strength, corrosion-resistant materials, such as stainless steel or aluminum alloy. The design of the storage mechanism 5 enables the first guard plate 41 and the second guard plate 42 to be conveniently stored in the base 1 when not in use, avoiding the occupation of additional space and simplifying the operation process. When the discharge test device completes the test task and needs to store the shielding structure 4, the descending mode of the lifting component 52 is first started through the control system. At this time, the lifting component 52 drives the first guard plate 41 and the second guard plate 42 to slowly slide down along the lower opening of the protective cover plate 51 and gradually be stored in the base 1. During the sliding process, the close fit between the guard plate and the protective cover plate 51 ensures the stability and reliability of the storage. When the guard plate is completely stored in the predetermined position, the lifting component 52 stops working and locks in the current position to prevent the guard plate from accidentally slipping. When the shielding structure 4 needs to be used again, the guard plate can be raised to the predetermined position through the reverse operation process.

[0033] Specifically, the lifting member 52 includes a synchronous plate 521 symmetrically arranged inside the base 1 and connected to the first guard plate 41 and the second guard plate 42 for driving the first guard plate 41 and the second guard plate 42 to move synchronously, a double-headed hydraulic cylinder 522 fixedly installed inside the base 1, a first hinge seat 523 fixedly arranged at the output end of the double-headed hydraulic cylinder 522, a support plate 524 hinged on the first hinge seat 523, and a second hinge seat 525 hinged on the top of the support plate 524 and fixedly connected to the lower end of the synchronous plate 521. Through the precise coordination and coordinated work of the synchronous plate 521, the double-headed hydraulic cylinder 522, the first hinge seat 523, the support plate 524 and the second hinge seat 525, the high synchronization and stability of the first guard plate 41 and the second guard plate 42 during the lifting process are ensured. The double-headed hydraulic cylinder 522 is used as a power source to improve the accuracy and response speed of the lifting control, so that the lifting movement of the guard plate is more stable and accurate. When it is necessary to lift the first guard plate 41 and the second guard plate 42, the control system sends a command to the double-headed hydraulic cylinder 522. After receiving the command, the hydraulic cylinder starts to work, and the two output ends are synchronously extended and retracted by controlling the inflow and outflow of hydraulic oil. The retracting movement of the output end drives the first hinge seat 523 and the support plate 524 to swing around the hinge point. Since the top of the support plate 524 is hinged to the lower end surface of the synchronous plate 521 through the second hinge seat 525, the swinging movement of the support plate 524 is converted into the lifting movement of the synchronous plate 521. Finally, the synchronous plate 521 drives the first guard plate 41 and the second guard plate 42 to synchronously lift and retract to a predetermined position and then stops working.

[0034] Furthermore, in order to facilitate the second guard plate 42 to move synchronously with the movable plate 32, and ensure that the second guard plate 42 is always located on the outer side of the corresponding tire on the movable plate 32: a connecting plate 5211 fixedly connected to the synchronous plate 521 is fixedly connected to the top between the two first guard plates 41, a sliding plate 5212 is fixedly connected to the top between the two second guard plates 42, and the sliding plate 5212 is slidably mounted on the synchronous plate 521, and a vertical groove 511 for the connecting plate 5211 and the sliding plate 5212 to be lifted and lowered is provided on the side of the protective cover plate 51 close to the car. Through the fixed connection between the connecting plate 5211 and the synchronous plate 521 and the sliding mounting design of the sliding plate 5212 on the synchronous plate 521, it is ensured that the second guard plate 42 can move closely following the movement of the movable plate 32, thereby improving the overall tracking and positioning accuracy of the shielding structure 4. When the movable plate 32 moves according to the test requirements, the second guard plate 42 needs to follow its movement to ensure that it is always located on the outer side of the corresponding tire on the movable plate 32. At this time, since the connecting plate 5211 is fixedly connected to the synchronous plate 521 and the sleeve plate 5212 is slidably mounted on the synchronous plate 521, when the synchronous plate 521 is lifted and lowered under the drive of the double-head hydraulic cylinder 522, the connecting plate 5211 and the sleeve plate 5212 are lifted and lowered synchronously. At the same time, due to the sliding characteristics of the sleeve plate 5212 on the synchronous plate 521 and the guiding effect of the vertical groove 511, the second guard plate 42 can closely follow the movement of the movable plate 32 and always maintain the correct position relationship. In this way, no matter how the movable plate 32 moves, the second guard plate 42 can ensure that the tire is effectively shielded and protected.

[0035] Furthermore, in order to prevent the connection plate 5211 and the sleeve plate 5212 from bending during the lifting process: a reinforcing plate 6 fixedly connected to the bottom of the protective sleeve plate 51 is arranged inside the base 1, and a T-bar 61 fixedly connected to the upper end of the reinforcing plate 6 is inserted on the connection plate 5211 and the sleeve plate 5212. The design of the reinforcing plate 6 and the T-bar 61 significantly enhances the rigidity of the connection plate 5211 and the sleeve plate 5212, prevents bending due to uneven force or weak structure during the lifting process, and improves the stability and reliability of the entire shielding structure 4. During the lifting process, when the synchronous plate 521 moves under the drive of the double-head hydraulic cylinder 522, the connection plate 5211 and the sleeve plate 5212 will be lifted and lowered accordingly. At this time, since the reinforcing plate 6 provides a stable support frame for the entire structure, and the T-bar 61 tightly connects the connection plate 5211, the sleeve plate 5212 and the reinforcing plate 6, the entire structure can maintain sufficient rigidity and stability. Even when subjected to a large external force, the connecting plate 5211 and the sliding plate 5212 can transfer part of the force to the reinforcing plate 6 through the T-bar 61, thereby dispersing the force and preventing the occurrence of bending. In this way, the entire shielding structure 4 can maintain a stable operating state under various working conditions.

[0036] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A new energy vehicle charging and discharging performance test device, comprising a charging test device body (2) and a discharging test device body (3) arranged on a base (1) for testing the charging and discharging performance of the new energy vehicle; The discharge test device body (3) comprises a fixed plate (31) fixedly arranged on the base (1), a movable plate (32) movably arranged on the base (1), and a driving member (33) arranged on the base (1) for driving the movable plate (32) to move closer to or away from the fixed plate (31); the fixed plate (31) and the movable plate (32) are both symmetrically provided with double rods (34) for positioning and rotating the tire; Features: The body (3) of the discharge test device is provided with a shielding structure (4) for shielding the automobile tire, the shielding structure (4) comprising a first guard plate (41) symmetrically arranged at the upper end of the fixed plate (31) corresponding to the automobile tire, a second guard plate (42) symmetrically arranged at the upper end of the movable plate (32) corresponding to the automobile tire, a baffle (43) arranged at a side of the first guard plate (41) and the second guard plate (42) close to the automobile tire for blocking particles ejected from the tire, and a first protective pad (44) fixedly arranged at one end of the first guard plate (41) and the second guard plate (42) away from the baffle (43) for reducing the impact force generated by a person on the first guard plate (41) and the second guard plate (42).

2. The new energy vehicle charging and discharging performance testing device according to claim 1 is characterized in that: Second protective pads (45) for cushioning particles ejected from the tire are provided on the first protective plate (41) and the two baffles (43), as well as on the second protective plate (42) and the two baffles (43).

3. The new energy vehicle charging and discharging performance testing device according to claim 1 is characterized in that: The baffle (43) is in an L-plate shape.

4. The new energy vehicle charging and discharging performance testing device according to claim 1, characterized in that: The base (1) is provided with a storage mechanism (5) for storing the first guard plate (41) and the second guard plate (42), the storage mechanism (5) comprises a protective sleeve (51) symmetrically fixedly plugged into the fixed plate (31) and the movable plate (32) and extending to the inside of the base (1), the first guard plate (41) and the second guard plate (42) are both plugged into the upper end of the protective sleeve (51), and the base (1) is provided with a lifting component (52) for driving the first guard plate (41) and the second guard plate (42) to rise and fall synchronously.

5. The new energy vehicle charging and discharging performance testing device according to claim 4 is characterized in that: The lifting component (52) includes a synchronous plate (521) symmetrically arranged inside the base (1) and connected to the first guard plate (41) and the second guard plate (42) for driving the first guard plate (41) and the second guard plate (42) to move synchronously, a double-headed hydraulic cylinder (522) fixedly installed inside the base (1), a first articulated seat (523) fixedly arranged at the output end of the double-headed hydraulic cylinder (522), a support plate (524) hinged on the first articulated seat (523), and a second articulated seat (525) hinged on the top of the support plate (524) and fixedly connected to the lower end of the synchronous plate (521).

6. The new energy vehicle charging and discharging performance testing device according to claim 5 is characterized in that: A connecting plate (5211) fixedly connected to the synchronous plate (521) is fixedly connected to the top between the two first guard plates (41); a sliding plate (5212) is fixedly connected to the top between the two second guard plates (42), and the sliding plate (5212) is slidably mounted on the synchronous plate (521); and a vertical groove (511) for the connecting plate (5211) and the sliding plate (5212) to be lifted and lowered is provided on the side of the protective cover plate (51) close to the automobile.

7. The new energy vehicle charging and discharging performance testing device according to claim 6 is characterized in that: A reinforcing plate (6) fixedly connected to the bottom of the protective sleeve plate (51) is arranged inside the base (1), and a T-shaped rod (61) fixedly connected to the upper end of the reinforcing plate (6) is inserted on both the connecting plate (5211) and the sliding sleeve plate (5212).

8. The new energy vehicle charging and discharging performance testing device according to claim 1, characterized in that: The driving member (33) comprises a hydraulic cylinder (331) fixedly mounted inside the base (1), and an output end of the hydraulic cylinder (331) is fixedly connected to the lower end of the movable plate (32).

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