A test device for charging and discharging performance of new energy vehicles

Abstract

This application discloses a charging and discharging performance testing device for new energy vehicles, belonging to the field of new energy vehicle testing. The testing device includes a charging test device body and a discharging test device body mounted on a base. The discharging test device body includes a fixed plate fixedly mounted on the base and a movable plate movably mounted on the base. A shielding structure is provided on the discharging test device body, comprising a first protective plate symmetrically mounted on the upper part of the fixed plate, a second protective plate symmetrically mounted on the upper part of the movable plate, a baffle plate located on the side of the first and second protective plates closest to the vehicle tire, and a first protective pad fixedly mounted on the end of the first and second protective plates away from the baffle plate. Through the design of the shielding structure, it effectively blocks splashes ejected from the high-speed rotating tire, preventing the risk of accidental injury to testing personnel. Simultaneously, the introduction of the first protective pad also significantly reduces the severity of injury to testing personnel in the event of a fall or accidental collision.

Description

Technical Field

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

[0002] With the rapid development of electric and hybrid vehicle technologies, testing the charge and discharge performance of automotive battery systems has become a crucial step in ensuring vehicle safety and range. Discharge testing conducted on automotive chassis testing machines is one of the important methods for evaluating the performance of a vehicle's powertrain.

[0003] However, during this test, when the test vehicle is placed on the chassis testing machine, its tires rotate at high speed under the action of the drive system to simulate actual driving conditions. At this time, if there are small stones 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 small stones unfortunately hit the testing personnel, they may cause serious bodily injuries, such as scratches and impact injuries, posing a direct threat to the safety of the testing personnel.

[0004] Furthermore, during testing, personnel need to observe or operate the equipment at close range, and may sometimes fall due to improper operation, slippery ground, or other unexpected situations. If a fall occurs and the body impacts the high-speed rotating tire, the tire's hard texture and high-speed motion can cause serious bodily injury, including but not limited to fractures and internal organ damage, posing a significant risk to the personal safety of the testing personnel.

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

[0006] This application provides a new energy vehicle charging and discharging performance testing device, which aims to solve the problems mentioned in the background art. In the existing vehicle charging and discharging performance testing process, the risk of small stones flying and falling due to the high speed rotation of the tire has become an important factor restricting the safety of the testing operation. At the same time, during the testing process, improper operation, slippery ground or other unexpected situations may cause falls and serious bodily injuries to the testing personnel due to impact with the high speed rotating tire.

[0007] To achieve the above objectives, this application provides the following technical solution: a new energy vehicle charging and discharging performance testing device, comprising a charging test device body and a discharging test device body disposed on the base for testing the charging and discharging performance of a new energy vehicle; the discharging test device body includes a fixed plate fixedly disposed on the base, a movable plate movably disposed on the base, and a driving component disposed on the base for driving the movable plate to move closer to or away from the fixed plate; both the fixed plate and the movable plate are symmetrically provided with double rods for positioning and rotating the tires;

[0008] To prevent injuries to testing personnel from flying stones impacting the high-speed rotating tires, and to prevent accidents caused by slippery surfaces leading to falls and impacts, the discharge testing device is equipped with a shielding structure to protect the vehicle tires. This shielding structure includes a first protective plate symmetrically positioned on the upper end of the fixed plate corresponding to the tires, a second protective plate symmetrically positioned on the upper end of the movable plate corresponding to the tires, a baffle positioned on the side of the first and second protective plates closest to the tires to block particles ejected from the tires, and a first protective pad fixed to the end of the first and second protective plates away from the baffles to reduce the impact force on the first and second protective plates. During discharge testing, the new energy vehicle is first parked in the testing area, and the tires are positioned and fixed using double rods. Next, the discharge test program is initiated. The first and second protective plates and the baffle together form a safety barrier, effectively blocking projectiles ejected from the tires. If a testing personnel accidentally falls or experiences an accidental collision, the first protective pad will provide soft cushioning, reducing the impact force and protecting the personnel. Throughout the testing process, the continuous function of the shielding structure ensured the safety of the testing environment and the protection of the testing personnel.

[0009] Preferably, to reduce the impact force of ejected stones on the first and second protective plates: a second protective pad is provided on both the first protective plate and the two baffles, as well as on the second protective plate and the two baffles, to cushion particles ejected from the tire. The addition of the second protective pad significantly enhances the protective capability of the shielding structure against ejected particles. Even in extreme cases, such as when large stones impact the protective plates at high speed, the cushioning effect reduces the damage caused by the impact, thereby extending the service life of the shielding structure.

[0010] Preferably, to facilitate the interception of stones impacting the first and second guard plates, the baffles are L-shaped. The L-shaped design gives the baffles a larger interception area and a longer interception path, thus enabling more effective interception of stones and other particles ejected from the tires.

[0011] Preferably, to facilitate the storage of the shielding structure when not in use and prevent external corrosion, the base is equipped with a storage mechanism for storing the first and second protective plates. The storage mechanism includes protective sleeves symmetrically fixedly inserted into the fixed plate and the movable plate and extending into the base. Both the first and second protective plates are inserted into the upper ends of the protective sleeves. The base is equipped with a lifting component for synchronously raising and lowering the first and second protective plates. This storage mechanism design allows the first and second protective plates to be easily stored inside the base when not in use, avoiding the occupation of additional 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 and second guard plates for synchronous movement of the first and second guard plates; a double-headed hydraulic cylinder fixedly installed inside the base; a first hinge seat fixedly installed at the output end of the double-headed hydraulic cylinder; a support plate hinged to the first hinge seat; and a second hinge seat hinged to the top of the support plate and fixedly connected to the lower end of the synchronization plate. Through the precise cooperation and coordinated operation of the synchronization plate, the double-headed hydraulic cylinder, the first hinge seat, the support plate, and the second hinge seat, the high degree of synchronization and stability of the first and second guard plates during lifting is ensured. Using a 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 plates smoother and more precise.

[0013] Preferably, to facilitate the synchronous movement of the second guard plate with the movable plate and ensure that the second guard plate is always located on the outer side of the movable plate corresponding to the tire: a connecting plate is fixedly connected to the top between the two first guard plates and fixedly connected to the synchronous plate; a sliding sleeve plate is fixedly connected to the top between the two second guard plates, and the sliding sleeve plate is slidably fitted onto the synchronous plate; a vertical groove is provided on the side of the guard plate closest to the vehicle for the connecting plate and the sliding sleeve plate to move up and down. Through the fixed connection between the connecting plate and the synchronous plate and the sliding sleeve plate's design on the synchronous plate, it is ensured that the second guard plate can closely follow the movement of the movable plate, improving the overall following performance and positioning accuracy of the shielding structure.

[0014] Preferably, to prevent bending of the connecting plate and sliding plate during lifting and lowering: a reinforcing plate is provided inside the base and fixedly connected to the bottom of the protective sleeve plate; a T-shaped rod is inserted into both the connecting plate and the sliding plate and fixedly connected to the upper end of the reinforcing plate. The design of the reinforcing plate and the T-shaped rod significantly enhances the rigidity of the connecting plate and the sliding plate, preventing bending due to uneven force or structural weakness during lifting and lowering, and improving the stability and reliability of the entire shielding structure.

[0015] Preferably, the driving component includes a hydraulic cylinder fixedly installed 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 features fast response, large thrust, and good stability, ensuring that the movable plate remains stable and vibration-free during lifting and lowering, thereby improving the accuracy and reliability of the test.

[0016] In this application, during the discharge performance testing of a vehicle, the first protective plate, second protective plate, and baffle of the shielding structure together form a safety barrier, effectively blocking the splashes ejected from the tires. If the testing personnel accidentally fall or experience an accidental collision, the first protective pad will provide soft cushioning, reducing the impact force and protecting the personnel's safety. Throughout the testing process, the continuous function of the shielding structure ensures the safety of the testing environment and the protection of the testing personnel.

[0017] This application not only effectively stores the first and second protective panels when not in use, preventing them from being corroded by the external environment, but also simplifies the operation process and improves work efficiency through an automated lifting mechanism. Attached Figure Description

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

[0019] Figure 2 for Figure 1 A schematic diagram of the connection between the shielding structure and the protective sleeve.

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

[0021] Figure 4 for Figure 1 The structural sectional view in the middle;

[0022] Figure 5 for Figure 4 A schematic diagram showing the connection between the shielding structure and the collection mechanism;

[0023] Figure 6 for Figure 5 A bottom view of the lifting component in the middle.

[0024] In the picture:

[0025] 1. Base; 2. Charging test device body; 3. Discharging test device body; 31. Fixed plate; 32. Movable plate; 33. Driving component; 331. Hydraulic cylinder; 34. Double rod; 4. Shielding structure; 41. First protective plate; 42. Second protective plate; 43. Baffle; 44. First protective pad; 45. Second protective pad; 5. Storage mechanism; 51. Protective sleeve plate; 511. Vertical groove; 52. Lifting component; 521. Synchronization plate; 5211. Connecting plate; 5212. Sliding sleeve plate; 522. Double-headed hydraulic cylinder; 523. First hinge seat; 524. Support plate; 525. Second hinge seat; 6. Reinforcing plate; 61. T-shaped rod. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] This embodiment provides a device for testing the charging and discharging performance of new energy vehicles, such as... Figure 1-6 As shown, the testing device includes a charging test device body 2 and a discharging test device body 3, which are mounted 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 mounted on the base 1, a movable plate 32 movably mounted on the base 1, and a driving component 33 mounted on the base 1 for driving the movable plate 32 to move closer to or away from the fixed plate 31. Both the fixed plate 31 and the movable plate 32 are symmetrically provided with double rods 34 for positioning and rotating the tires. The fixed plate 31 and the movable plate 32 together constitute an adjustable distance suitable for vehicles of different lengths. The fixed plate 31 is fixed on the base 1, while the movable plate 32 moves horizontally through the driving component 33, thereby precisely adjusting the distance between it and the fixed plate 31.

[0028] Specifically, the driving component 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 without shaking during the lifting process, thereby improving the accuracy and reliability of the test.

[0029] To prevent stones from flying off the high-speed rotating tires and injuring testing personnel, and to prevent personnel from slipping and falling on the tires due to slippery ground, the discharge testing device body 3 is equipped with a shielding structure 4 to protect the vehicle tires. The shielding structure 4 includes a first guard plate 41 symmetrically positioned on the upper end of the fixed plate 31 corresponding to the vehicle tires; a second guard plate 42 symmetrically positioned on the upper end of the movable plate 32 corresponding to the vehicle tires; a baffle 43 positioned on the side of the first and second guard plates 41 and 42 closest to the vehicle tires to block particles ejected from the tires; and a first pad 44 fixedly positioned on the end of the first and second guard plates 41 and 42 away from the baffle 43 to reduce the impact force exerted by personnel on the first and second guard plates 41 and 42. The first pad 44 is located on the end of the first and second guard plates 41 and 42 away from the baffle 43, i.e., the side facing the testing personnel. The first protective pad 44 is made of soft, energy-absorbing materials, such as sponge and foam rubber, to reduce the impact force when testing personnel collide with the protective plate in case of an accident, further ensuring personnel safety. The design of the shielding structure 4 effectively blocks the splashes ejected from the high-speed rotating tire, preventing the risk of accidental injury to testing personnel. At the same time, the introduction of the first protective pad 44 also significantly reduces the severity of injury to testing personnel in the event of a fall or accidental collision. During the discharge test, the new energy vehicle is first parked in the test area, and the tires are positioned and fixed using double rods 34. Next, the discharge test procedure is initiated. The first protective plate 41, the second protective plate 42, and the baffle 43 of the shielding structure 4 together form a safety barrier, effectively blocking the splashes ejected from the tire. If the testing personnel accidentally fall or are involved in an accidental collision, the first protective pad 44 will provide soft cushioning, reducing the impact force and protecting personnel safety. Throughout the entire test process, the continuous function of the shielding structure 4 ensures the safety of the test environment and the protection of the testing personnel.

[0030] Specifically, to reduce the impact force of ejected stones on the first guard plate 41 and the second guard plate 42, second protective pads 45 are provided on both the first guard plate 41 and the two baffles 43, as well as on the second guard plate 42 and the two baffles 43, to buffer particles ejected from the tire. The second protective pads 45 are made of highly elastic, highly wear-resistant, and impact-resistant materials, such as rubber, silicone, or specially synthesized elastomers. These materials not only effectively absorb and disperse impact forces but also maintain good shape and performance during prolonged use. The addition of the second protective pads 45 significantly enhances the protective capability of the shielding structure 4 against ejected particles. Even in extreme cases, such as when large stones impact the guard plates at high speed, the buffering effect reduces the damage caused to the guard plates, thereby extending the service life of the shielding structure 4. When the tires of new energy vehicles rotate at high speed on the discharge testing device, ejected particles such as stones may be generated. These particles will first contact the second protective pads 45 when they impact the first guard plate 41, the second guard plate 42, or the baffles 43. The second pad 45 utilizes its high elasticity and impact resistance to rapidly absorb and disperse impact force, thereby slowing down the particle velocity and reducing its energy. The remaining impact force is then further absorbed and dispersed by the main body of the shielding structure 4, ensuring the safety and stability of the entire testing process. In this way, the second pad 45 and the shielding structure 4 together constitute a highly efficient and reliable protection system, effectively safeguarding the safety of testing personnel and equipment.

[0031] Furthermore, to facilitate the interception of stones impacting the first guard plate 41 and the second guard plate 42, the baffle 43 is L-shaped. Specifically, the baffle 43 employs an L-shaped structure, meaning its cross-section is a right angle. This design allows the baffle 43 to have a longer interception surface in the vertical direction, more effectively blocking stones ejected from the tire side. Simultaneously, the bottom of the L-shaped structure is tightly connected to the first guard plate 41 or the second guard plate 42, forming a stable support structure and enhancing overall stability. The L-shaped design gives the baffle 43 a larger interception area and a longer interception path, thus more effectively intercepting particles such as stones ejected from the tire. During the discharge test, when the tires of the new energy vehicle rotate at high speed and generate flying particles such as stones, these particles first impact the first guard plate 41 or the second guard plate 42, and then travel along the first guard plate 41 or the second guard plate 42 to impact the L-shaped baffle 43. Because the baffle 43 has a large interception area and a long interception path, it can more effectively block the trajectory of the particles. Meanwhile, the L-shaped structure of the baffle 43 provides a stable supporting foundation, making it less prone to deformation or displacement when subjected to impact. In this way, the L-shaped baffle 43, together with the first protective plate 41, the second protective plate 42, and the second protective pad 45, constitutes an efficient and reliable protective system, effectively ensuring the safety and stability of the testing process.

[0032] To facilitate the storage of the shielding structure 4 when not in use and prevent it from being corroded by the external environment, a storage mechanism 5 is provided inside the base 1 for storing the first protective plate 41 and the second protective plate 42. The storage mechanism 5 includes protective sleeves 51 that are symmetrically fixed and inserted into the fixed plate 31 and the movable plate 32 and extend into the base 1. The first protective plate 41 and the second protective plate 42 are both inserted into the upper end of the protective sleeves 51. A lifting component 52 is provided inside the base 1 for driving the first protective plate 41 and the second protective plate 42 to rise and fall synchronously. The storage mechanism 5 not only effectively stores the first protective plate 41 and the second protective plate 42 when not in use, preventing them from being corroded by the external environment, but also simplifies the operation process and improves work efficiency through the automated lifting component 52. The protective sleeves 51 are made of high-strength, corrosion-resistant materials, such as stainless steel or aluminum alloy. The design of the storage mechanism 5 allows the first protective plate 41 and the second protective plate 42 to be conveniently stored inside the base 1 when not in use, avoiding the occupation of extra space and simplifying the operation process. When the discharge testing device completes its testing task and the shielding structure 4 needs to be retracted, the control system first activates the lowering mode of the lifting component 52. At this time, the lifting component 52 drives the first protective plate 41 and the second protective plate 42 to slowly slide down along the lower opening of the protective sleeve 51 and gradually retract into the base 1. During the descent, the tight fit between the protective plates and the protective sleeve 51 ensures the stability and reliability of the retraction. Once the protective plates are fully retracted to the predetermined position, the lifting component 52 stops operating and locks itself in the current position to prevent accidental slippage. When the shielding structure 4 needs to be used again, the protective plates are raised to the predetermined position using the reverse operation procedure.

[0033] Specifically, the lifting component 52 includes a synchronization plate 521 symmetrically arranged inside the base 1 and connected to the first guard plate 41 and the second guard plate 42 for synchronous movement of the first guard plate 41 and the second guard plate 42; a double-headed hydraulic cylinder 522 fixedly installed inside the base 1; a first hinge seat 523 fixedly installed at the output end of the double-headed hydraulic cylinder 522; a support plate 524 hinged to the first hinge seat 523; and a second hinge seat 525 hinged to the top of the support plate 524 and fixedly connected to the lower end of the synchronization plate 521. Through the precise coordination and collaborative work of the synchronization 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 degree of synchronization and stability of the first guard plate 41 and the second guard plate 42 during the lifting process is ensured. Using the double-headed hydraulic cylinder 522 as the power source improves the accuracy and response speed of the lifting control, making the lifting movement of the guard plates smoother and more precise. 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. Upon receiving the command, the hydraulic cylinder begins operation, controlling the inflow and outflow of hydraulic oil to synchronously extend and retract the two output ends. The extension and retraction of the output ends causes 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 face of the synchronous plate 521 via the second hinge seat 525, the swinging motion of the support plate 524 is converted into the lifting and lowering motion 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 lower to the predetermined position before stopping.

[0034] Furthermore, to facilitate the synchronous movement of the second guard plate 42 with the movable plate 32 and ensure that the second guard plate 42 is always located on the outer side of the movable plate 32 corresponding to the tire: a connecting plate 5211, which is fixedly connected to the synchronous plate 521, is fixedly connected to the top between the two first guard plates 41; a sliding sleeve plate 5212 is fixedly connected to the top between the two second guard plates 42, and the sliding sleeve plate 5212 is slidably fitted onto the synchronous plate 521; a vertical groove 511 is provided on the side of the protective sleeve plate 51 closest to the vehicle for the connecting plate 5211 and the sliding sleeve plate 5212 to move up and down. Through the fixed connection between the connecting plate 5211 and the synchronous plate 521 and the sliding sleeve plate 5212 on the synchronous plate 521, the second guard plate 42 can closely follow the movement of the movable plate 32, improving the overall following performance and positioning accuracy of the shielding structure 4. When the movable plate 32 moves according to testing requirements, the second guard plate 42 needs to move with it to ensure that it is always located on the outer side of the movable plate 32 corresponding to the tire. At this time, since the connecting plate 5211 is fixedly connected to the synchronization plate 521 and the sliding sleeve plate 5212 is slidably fitted onto the synchronization plate 521, when the synchronization plate 521 moves up and down under the drive of the double-headed hydraulic cylinder 522, the connecting plate 5211 and the sliding sleeve plate 5212 will move up and down synchronously. Simultaneously, due to the sliding characteristics of the sliding sleeve plate 5212 on the synchronization 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, always maintaining the correct positional relationship. Thus, no matter how the movable plate 32 moves, the second guard plate 42 can ensure effective shielding and protection of the tire.

[0035] Furthermore, to prevent bending of the connecting plate 5211 and sliding plate 5212 during lifting, a reinforcing plate 6 is provided inside the base 1, which is fixedly connected to the bottom of the protective sleeve plate 51. T-shaped rods 61, which are fixedly connected to the upper end of the reinforcing plate 6, are inserted into both the connecting plate 5211 and the sliding plate 5212. The design of the reinforcing plate 6 and the T-shaped rods 61 significantly enhances the rigidity of the connecting plate 5211 and the sliding plate 5212, preventing bending due to uneven force or structural weakness during lifting, and improving the stability and reliability of the entire shielding structure 4. During lifting, when the synchronous plate 521 moves under the drive of the double-headed hydraulic cylinder 522, the connecting plate 5211 and the sliding plate 5212 will rise and fall accordingly. At this time, because the reinforcing plate 6 provides a stable support frame for the entire structure, and the T-shaped rods 61 tightly connect the connecting plate 5211, the sliding plate 5212, and the reinforcing plate 6 together, the entire structure can maintain sufficient rigidity and stability. Even when subjected to significant external forces, the connecting plate 5211 and the sliding plate 5212 can transfer part of the force to the reinforcing plate 6 via the T-shaped rod 61, thereby dispersing the force and preventing bending. In this way, the entire shielding structure 4 can maintain a stable operating state under various working conditions.

[0036] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A new energy vehicle charging and discharging performance testing device, comprising a charging test device body (2) and a discharging test device body (3) mounted on a base (1) for testing the charging and discharging performance of new energy vehicles; The discharge test device body (3) includes a fixed plate (31) fixedly mounted on the base (1), a movable plate (32) movably mounted on the base (1), and a driving component (33) mounted 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 symmetrically provided with double rods (34) for positioning and rotating the tire. Its features are: The discharge testing device body (3) is provided with a shielding structure (4) for shielding the car tire. The shielding structure (4) includes a first guard plate (41) symmetrically arranged on the upper end of the fixed plate (31) corresponding to the car tire, a second guard plate (42) symmetrically arranged on the upper end of the movable plate (32) corresponding to the car tire, a baffle (43) arranged on the side of the first guard plate (41) and the second guard plate (42) close to the car tire for blocking particles ejected from the tire, and a first pad (44) fixedly arranged on 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).

2. The new energy vehicle charging and discharging performance testing device according to claim 1, characterized in that: 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 guard pad (45) for buffering particles ejected from the tire.

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

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 protective plate (41) and the second protective plate (42). The storage mechanism (5) includes a protective sleeve plate (51) symmetrically fixedly inserted into the fixed plate (31) and the movable plate (32) and extending into the base (1). The first protective plate (41) and the second protective plate (42) are both inserted into the upper end of the protective sleeve plate (51). The base (1) is provided with a lifting component (52) for driving the first protective plate (41) and the second protective plate (42) to rise and fall synchronously.

5. The new energy vehicle charging and discharging performance testing device according to claim 4, characterized in that: The lifting component (52) includes a synchronization 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 installed at the output end of the double-headed hydraulic cylinder (522); a support plate (524) hinged to the first hinge seat (523); and a second hinge seat (525) hinged to the top of the support plate (524) and fixedly connected to the lower end of the synchronization plate (521).

6. The new energy vehicle charging and discharging performance testing device according to claim 5, 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), and a sliding sleeve plate (5212) is fixedly connected to the top between the two second guard plates (42). The sliding sleeve plate (5212) is slidably fitted on the synchronous plate (521). A vertical groove (511) is provided on the side of the guard plate (51) near the car for the connecting plate (5211) and the sliding sleeve plate (5212) to move up and down.

7. The new energy vehicle charging and discharging performance testing device according to claim 6, characterized in that: The base (1) is provided with a reinforcing plate (6) that is fixedly connected to the bottom of the protective sleeve plate (51). T-shaped rods (61) that are fixedly connected to the upper end of the reinforcing plate (6) are inserted into 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 drive unit (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).

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