Automatic test system for new energy automobile battery

Abstract

The invention relates to the technical field of new energy battery detection, in particular to a new energy automobile battery automatic test system which comprises a platform and at least one simulation obstacle arranged on the platform. The moving assembly is used for bearing the battery and comprises at least two vehicle body parts, each vehicle body part comprises a vehicle body unit and a moving part arranged on the vehicle body unit and used for moving, each vehicle body unit is provided with a supporting face used for supporting the bottom of the battery, and a telescopic structure movably connected in the driving direction is arranged between the vehicle body units. According to the invention, the mobile assembly is designed in a telescopic manner, so that after the mobile assembly collides with a simulated obstacle, the impact force enables the telescopic structure between the vehicle body units to move, thereby enabling the vehicle body units to tend to move in opposite directions, and enabling the vehicle body units to generate extrusion force on the battery. Therefore, the damage of vibration and extrusion to the battery during vehicle collision is fully simulated.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy battery detection, and in particular to an automatic testing system for new energy vehicle batteries. Background Art

[0002] At present, the testing requirements for new energy vehicle power batteries are mainly divided into: mechanical safety, environmental safety and electrical performance safety. Among them, mechanical safety is divided into vibration, mechanical shock, falling, overturning, simulated collision, extrusion, etc., and the existing new energy vehicle power battery collision test mainly judges the battery's impact resistance by hitting an obstacle. When in use, the battery is loaded onto a trolley, and the drive structure is used to drive the trolley to a certain speed, causing the trolley to collide with an obstacle, thereby simulating the accident scene.

[0003] Current technical problems: Practice has shown that when a vehicle at a high speed has an accident, in addition to transmitting vibrations to the battery, the body of the vehicle itself will also undergo a significant deformation, which will squeeze the battery and cause secondary damage. However, the existing car can only carry the battery to collide with an obstacle. When the car collides with an obstacle, the car itself will not deform, so that the battery will only be vibrated. It is unable to fully simulate the situation at the scene of the accident where the vehicle is impacted and deformed, thereby squeezing the battery. Therefore, the existing battery collision test device has great limitations. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose an automatic testing system for new energy vehicle batteries to solve the technical problem that the existing new energy battery collision side-view system cannot fully simulate the damage to the battery caused by vehicle impact deformation.

[0005] Based on the above purpose, the present invention provides a new energy vehicle battery automatic testing system, comprising:

[0006] A platform and at least one simulated obstacle disposed on the platform;

[0007] A mobile assembly for carrying a battery, the mobile assembly comprising at least two body parts, the body part comprising a body unit and a moving component arranged on the body unit for movement, the body unit having a support surface for supporting the bottom of the battery, and a telescopic structure movably connected along the travel direction between the body units, so that after the mobile assembly collides with a simulated obstacle, the body units have a tendency to move toward each other, thereby generating pressure on the battery;

[0008] A driving component is used to drive the moving component to collide with a simulated obstacle.

[0009] As a preferred technical solution of the present invention, the telescopic structure comprises:

[0010] a guide post provided at one end of the vehicle body unit;

[0011] The fixing sleeve arranged at the other end of the vehicle body unit is used to telescopically connect the adjacent vehicle body units by inserting the guide column of one vehicle body unit into the fixing sleeve of another vehicle body unit.

[0012] As a preferred technical solution of the present invention, a threaded rod is provided at one end of the guide column, a nut is threadedly connected to the threaded rod, a spring is provided between the nut and the fixing sleeve, and the spring sleeve is provided on the surface of the guide column.

[0013] As a preferred technical solution of the present invention, a simulated bumper is provided at the collision end of the vehicle body unit, and the moving component is a pulley arranged at the bottom of the vehicle body unit.

[0014] As a preferred technical solution of the present invention, the driving assembly includes:

[0015] A guide rail disposed on the platform for guiding the movement of the moving assembly, the guide rail having an inclination so that the moving assembly can slide and reset after hitting the simulated obstacle, and one end of the guide rail points to the simulated obstacle;

[0016] a bracket disposed at the other end of the guide rail;

[0017] a first motor mounted on the bracket;

[0018] a crankshaft connected to the output shaft of the first motor;

[0019] A crankshaft with one end movably hinged to the crank plate;

[0020] A push plate matched with the guide rail, one side of the push plate is movably hinged to the other end of the crankshaft.

[0021] As a preferred technical solution of the present invention, a plurality of simulated obstacles are arranged on the platform, and the simulated obstacles are switched by a switching component arranged on the platform so that any one of the simulated obstacles can dock with the guide rail.

[0022] As a preferred technical solution of the present invention, the switching component includes:

[0023] A movable ring with a slider is provided at the bottom, the slider is rotatably matched with a slide slot provided on the platform, the inner side surface of the movable ring forms a fixing surface for fixing the simulated obstacle, and the movable ring encloses the driving component and the moving component;

[0024] A power structure for driving the movable ring to rotate relative to the platform.

[0025] As a preferred technical solution of the present invention, the power structure includes:

[0026] a gear ring disposed on the outer side of the movable ring;

[0027] a second motor fixedly connected to the platform;

[0028] A driving gear matched with the gear ring, wherein the driving gear is connected to an output shaft of the second motor.

[0029] As a preferred technical solution of the present invention, the simulated obstacle is provided with a card block, and the card block is engaged with a card slot provided on the movable ring. Connecting plates matching the ends of the guide rails are provided on both sides of the simulated obstacle.

[0030] As a preferred technical solution of the present invention, the upper end of the movable ring is surrounded by a side wall, and the upper end of the side wall is provided with a top wall extending inwardly along the radial direction of the movable ring, and the top wall and the side wall form a protective space to prevent the moving component from flying out of the platform.

[0031] Beneficial effects of the present invention: Since the mobile component of the present invention adopts a telescopic design, after the mobile component collides with a simulated obstacle, the impact force causes the telescopic structure between the body units to move, thereby causing the body units to have a tendency to move toward each other, and the body units generate squeezing pressure on the battery, thereby fully simulating the damage to the battery caused by vibration and squeezing during a vehicle collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the upper three-dimensional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the upper part of the three-dimensional structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable ring of the present invention;

[0036] Figure 4 It is a schematic diagram of the three-dimensional structure of the guide rail, the vehicle body unit and the push plate of the present invention;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the vehicle body unit of the present invention;

[0038] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0039] Figure 7 It is a schematic diagram of the partial three-dimensional structure of the simulated obstacle and the movable ring of the present invention.

[0040] The markings in the figure are: 1. platform; 2. movable ring; 3. slider; 4. slide groove; 5. simulated obstacle; 6. gear ring; 7. second motor; 8. driving gear; 9. guide rail; 10. body unit; 11. guide column; 12. fixing sleeve; 13. simulated bumper; 14. threaded rod; 15. nut; 16. spring; 17. supporting surface; 18. bracket; 19. first motor; 20. crank; 21. crankshaft; 22. push plate; 23. block; 24. slot; 25. side wall; 26. top wall; 27. pulley; 28. connecting plate. DETAILED DESCRIPTION

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0042] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0043] like Figure 1As shown, a new energy vehicle battery automatic test system includes: a platform 1 and at least one simulated obstacle 5 arranged on the platform 1; a mobile component for carrying the battery, the mobile component includes at least two body parts, the body part includes a body unit 10 and a moving component arranged on the body unit 10 for movement, the body unit 10 has a support surface 17 for supporting the bottom of the battery, and the body units 10 have a telescopic structure movably connected along the driving direction, so that after the mobile component collides with the simulated obstacle 5, the body units 10 have a tendency to move toward each other, thereby generating pressure on the battery; a driving component for driving the mobile component to collide with the simulated obstacle 5;

[0044] The above technical solution can simulate the damage to the battery caused by the deformation of the vehicle body after a vehicle collision. When in use, the battery is placed on the support surface 17 of the mobile component and fixed, and the driving component is started to drive the mobile component to move on the platform 1. The mobile component collides with the simulated obstacle 5. The impact force causes the telescopic structure between the body units 10 to move, thereby causing the body units 10 to have a tendency to move toward each other. The body units 10 generate an extrusion pressure on the battery, fully simulating the damage to the battery caused by vibration and extrusion during a vehicle collision.

[0045] like Figure 5 As shown, in this embodiment, the telescopic structure includes: a guide column 11 provided at one end of the vehicle body unit 10; a fixing sleeve 12 provided at the other end of the vehicle body unit 10, and the guide column 11 of one vehicle body unit 10 is inserted into the fixing sleeve 12 of another vehicle body unit 10 to telescopically connect the adjacent vehicle body units 10;

[0046] The above technical solution can ensure that the body units 10 can expand and contract with each other, so that they can move relative to each other after being hit, thereby squeezing the battery and simulating the damage to the battery caused by the deformation of the body.

[0047] like Figure 6 As shown, in this embodiment, a threaded rod 14 is provided at one end of the guide column 11, a nut 15 is threadedly connected to the threaded rod 14, a spring 16 is provided between the nut 15 and the fixing sleeve 12, and the spring 16 is sleeved on the surface of the guide column 11;

[0048] The above technical solution can ensure that the vehicle body unit 10 can maintain a relatively stable close state under the action of the spring 16, and prevent loose deformation before hitting the simulated obstacle 5. The elastic force of the spring 16 can be adjusted by rotating the nut 15.

[0049] like Figure 5 As shown, in this embodiment, a simulated bumper 13 is provided at the collision end of the vehicle body unit 10, and the moving component is a pulley 27 provided at the bottom of the vehicle body unit 10;

[0050] The above technical solution can better simulate the movement of the vehicle.

[0051] like Figure 4 As shown, in this embodiment, the driving assembly includes: a guide rail 9 provided on the platform 1 for guiding the movement of the moving assembly, the guide rail 9 has an inclination so that the moving assembly can slide and reset after hitting the simulated obstacle 5, and one end of the guide rail 9 points to the simulated obstacle 5; a bracket 18 provided at the other end of the guide rail 9; a first motor 19 installed on the bracket 18; a crank 20 connected to the output shaft of the first motor 19; a crankshaft 21 with one end movably hinged to the crank 20; a push plate 22 matched with the guide rail 9, and one side of the push plate 22 is movably hinged to the other end of the crankshaft 21;

[0052] The above technical solution can be used to drive the mobile component to collide with the simulated obstacle 5. When in use, the first motor 19 is started, and the first motor 19 drives the crank 20 to rotate. The crank 20 drives the push plate 22 through the crankshaft 21 to push the mobile component to move, so that the mobile component hits the simulated obstacle 5 along the guide rail 9. After the mobile component hits the simulated obstacle 5, due to the inclined surface of the guide rail 9, the mobile component slides to the initial position again, and a second round of impact can be carried out, thereby repeating the test multiple times.

[0053] like Figure 2 and Figure 3 As shown, in this embodiment, a plurality of simulated obstacles 5 are arranged on the platform 1, and the simulated obstacles 5 are switched by a switching assembly arranged on the platform 1, so that any simulated obstacle 5 can be docked with the guide rail 9; specifically, the switching assembly includes: a movable ring 2 with a slider 3 arranged at the bottom, the slider 3 is rotatably matched with a slide groove 4 provided on the platform 1, the inner side surface of the movable ring 2 forms a fixed surface for fixing the simulated obstacle 5, and the movable ring 2 encloses the driving assembly and the moving assembly; a power structure for driving the movable ring 2 to rotate relative to the platform 1, preferably, the power structure includes: a gear ring 6 arranged on the outer side surface of the movable ring 2; a second motor 7 fixedly connected to the platform 1; a driving gear 8 matched with the gear ring 6, and the driving gear 8 is connected to the output shaft of the second motor 7;

[0054] The above technical solution can simulate different collision situations. In reality, the collision obstacle is not necessarily a regular plane. Therefore, in order to simulate different accident situations as much as possible, a plurality of simulated obstacles 5 of different shapes should be made, such as simulating sharp corners, cylindrical electric poles, etc. When it is necessary to switch the simulated obstacle 5, start the second motor 7, the second motor 7 will drive the driving gear 8 to rotate, and the driving gear 8 cooperates with the gear ring 6 to drive the movable ring 2 to rotate, thereby driving all the simulated obstacles 5 located on the inner side of the movable ring 2 to rotate until the required simulated obstacle 5 is docked with the guide rail 9, stop the second motor 7, and complete the switching of the simulated obstacle 5.

[0055] like Figure 7 As shown, in this embodiment, the simulated obstacle 5 is provided with a block 23, which is engaged with a slot 24 provided on the movable ring 2, and connecting plates 28 that match the ends of the guide rails 9 are provided on both sides of the simulated obstacle 5;

[0056] The above technical solution can be used to facilitate the disassembly of the simulated obstacle 5. Since the simulated obstacle 5 is often subject to impact and is a consumable item, it needs to be replaced or maintained regularly. By connecting the simulated obstacle 5 to the movable ring 2 in a detachable manner, the damaged simulated obstacle 5 can be easily replaced. The connecting plate 28 prevents the existence of a gap between the simulated obstacle 5 and the guide rail 9, prevents the moving component from going out of the gap, and ensures that the running trajectory of the moving component meets expectations.

[0057] like Figure 1 and Figure 2 As shown, in this embodiment, the upper end of the movable ring 2 is surrounded by a side wall 25, and the upper end of the side wall 25 is provided with a top wall 26 extending inwardly along the radial direction of the movable ring 2, and the top wall 26 and the side wall 25 form a protective space to prevent the moving component from flying out of the platform 1;

[0058] The above technical solution can improve the safety of the test. By providing the top wall 26 and the side wall 25, the moving component can be prevented from flying out of the platform 1 after the collision, thereby preventing the experimenter from being hurt.

[0059] Working principle: put the battery on the supporting surface 17 of the mobile component and fix it, start the first motor 19, the first motor 19 drives the crank plate 20 to rotate, the crank plate 20 drives the push plate 22 through the crankshaft 21 to push the mobile component to move, so that the mobile component collides with the simulated obstacle 5 along the guide rail 9, and the mobile component collides with the simulated obstacle 5. The impact force makes the telescopic structure composed of the guide column 11 and the fixed sleeve 12 between the body units 10 move, so that the body units 10 have a tendency to move toward each other, and the body units 10 generate an extrusion force on the battery, which fully simulates the damage to the battery caused by vibration and extrusion when the vehicle collides;

[0060] After the moving assembly hits the simulated obstacle 5, due to the inclined surface of the guide rail 9, the moving assembly slides again to the initial position where it conflicts with the push plate 22, and a second round of impact can be performed, thereby repeating the test multiple times;

[0061] When it is necessary to switch the simulated obstacle 5, start the second motor 7, the second motor 7 will drive the driving gear 8 to rotate, and the driving gear 8 cooperates with the gear ring 6 to drive the movable ring 2 to rotate, thereby driving all the simulated obstacles 5 located on the inner side of the movable ring 2 to rotate until the required simulated obstacle 5 docks with the guide rail 9, stop the second motor 7, and complete the switching of the simulated obstacle 5. By replacing the simulated obstacles 5 with different structures, it is possible to simulate different accident situations as much as possible in a limited environment and explore the defects of the battery's impact resistance.

[0062] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0063] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new energy vehicle battery automatic testing system, characterized in that: include: A platform (1) and at least one simulated obstacle (5) disposed on the platform (1); A mobile assembly for carrying a battery, the mobile assembly comprising at least two vehicle body parts, the vehicle body parts comprising a vehicle body unit (10) and a moving component arranged on the vehicle body unit (10) for movement, the vehicle body unit (10) having a support surface (17) for supporting the bottom of the battery, and a telescopic structure movably connected along the travel direction between the vehicle body units (10), so that after the mobile assembly collides with a simulated obstacle (5), the vehicle body units (10) have a tendency to move towards each other, thereby generating pressure on the battery; A driving component for driving the moving component to collide with a simulated obstacle (5).

2. The new energy vehicle battery automatic testing system according to claim 1 is characterized in that: The telescopic structure comprises: A guide column (11) provided at one end of the vehicle body unit (10); A fixing sleeve (12) provided at the other end of the vehicle body unit (10) is used to telescopically connect adjacent vehicle body units (10) by inserting a guide column (11) of one vehicle body unit (10) into the fixing sleeve (12) of another vehicle body unit (10).

3. The new energy vehicle battery automatic testing system according to claim 2 is characterized in that: A threaded rod (14) is provided at one end of the guide column (11), a nut (15) is threadedly connected to the threaded rod (14), a spring (16) is provided between the nut (15) and the fixing sleeve (12), and the spring (16) is sleeved on the surface of the guide column (11).

4. The new energy vehicle battery automatic testing system according to claim 3 is characterized in that: The collision end of the vehicle body unit (10) is provided with a simulated bumper (13), and the moving component is a pulley (27) arranged at the bottom of the vehicle body unit (10).

5. The new energy vehicle battery automatic testing system according to claim 2 is characterized in that: The drive assembly comprises: A guide rail (9) is arranged on the platform (1) and is used to guide the movement of the moving component. The guide rail (9) has an inclination so that the moving component can slide and reset after hitting the simulated obstacle (5), and one end of the guide rail (9) points to the simulated obstacle (5); a bracket (18) disposed at the other end of the guide rail (9); A first motor (19) mounted on the bracket (18); a crankshaft (20) connected to the output shaft of the first motor (19); A crankshaft (21) with one end movably hinged to the crank plate (20); A push plate (22) matched with the guide rail (9), one side of the push plate (22) is movably hinged to the other end of the crankshaft (21).

6. The new energy vehicle battery automatic testing system according to claim 5 is characterized in that: A plurality of simulated obstacles (5) are arranged on the platform (1), and the simulated obstacles (5) are switched by a switching component arranged on the platform (1) so that any one of the simulated obstacles (5) is docked with the guide rail (9).

7. The new energy vehicle battery automatic testing system according to claim 6 is characterized in that: The switching component comprises: A movable ring (2) with a slider (3) is provided at the bottom, the slider (3) is rotatably matched with a slide groove (4) provided on the platform (1), the inner side surface of the movable ring (2) forms a fixing surface for fixing a simulated obstacle (5), and the movable ring (2) encloses a driving component and a moving component; A power structure for driving the movable ring (2) to rotate relative to the platform (1).

8. The new energy vehicle battery automatic testing system according to claim 7 is characterized in that: The power structure comprises: a gear ring (6) arranged on the outer side surface of the movable ring (2); a second motor (7) fixedly connected to the platform (1); A driving gear (8) matched with the gear ring (6), wherein the driving gear (8) is connected to an output shaft of a second motor (7).

9. The new energy vehicle battery automatic testing system according to claim 8, characterized in that: The simulated obstacle (5) is provided with a clamping block (23), and the clamping block (23) is engaged with a clamping groove (24) provided on the movable ring (2). Both sides of the simulated obstacle (5) are provided with connecting plates (28) that match the ends of the guide rail (9).

10. The new energy vehicle battery automatic testing system according to claim 9, characterized in that: The upper end of the movable ring (2) is surrounded by a side wall (25), and the upper end of the side wall (25) is provided with a top wall (26) extending inwardly along the radial direction of the movable ring (2), and the top wall (26) and the side wall (25) form a protective space for preventing the moving component from flying out of the platform (1).

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