Impact resistance detection device for new energy battery pack and use method

Abstract

The invention discloses an impact resistance detection device for a new energy battery pack and a use method, and relates to the field of impact resistance detection of battery packs, the impact resistance detection device comprises a supporting plate, the top of the supporting plate is fixedly connected with two supporting frames, the two supporting frames are slidably connected with sliding blocks, a mounting frame is fixedly connected between the two sliding blocks, and the mounting frame is fixedly connected with the top of the supporting plate. A battery pack mounting mechanism is rotationally connected into the mounting frame; according to the impact resistance detection device for the new energy battery pack and the use method, through the synergistic effect of the battery pack mounting mechanism and the lifting impact mechanism, impact resistance tests of different angles and different heights can be carried out on the battery pack, and through the multi-angle and multi-height test mode, the impact resistance of the battery pack is greatly improved. Various impact conditions possibly encountered by the battery pack in actual use can be more comprehensively simulated, so that the impact resistance of the battery pack is more accurately evaluated, and the comprehensiveness and reliability of impact detection of the battery pack are improved.

Description

Technical Field

[0001] The present invention relates to a battery pack anti-impact detection technology, and in particular to an anti-impact detection device for a new energy battery pack and a method for using the device. Background Art

[0002] With the rapid development of new energy technologies, the performance and safety of new energy battery packs, core components in electric vehicles and energy storage systems, have attracted widespread attention. The impact resistance of battery packs is a key indicator of their ability to withstand various unexpected impacts and ensure safe and stable operation in practical applications. Therefore, impact resistance testing of new energy battery packs is particularly important.

[0003] However, existing battery pack impact testing technologies often suffer from a single testing method and significant discrepancies between the testing environment and actual application scenarios. Conventional testing devices are typically only capable of impact testing battery packs at fixed angles and heights, failing to fully simulate the various impact conditions a battery pack may encounter in actual use. Furthermore, existing testing devices are inadequate in simulating the automotive shock absorption environment, making it difficult to accurately reflect the impact resistance of battery packs on vehicles with different shock absorption characteristics.

[0004] These issues lead to inaccurate and incomplete assessments of battery pack impact resistance, making it impossible to provide a fully reliable basis for battery pack design and optimization. Therefore, developing a new energy battery pack impact resistance testing device and method that can simulate multiple impact angles and heights, and a realistic shock absorption environment, is crucial for improving the accuracy and comprehensiveness of battery pack impact resistance testing. Summary of the Invention

[0005] The purpose of the present invention is to provide an impact resistance detection device and a method for use for a new energy battery pack to address the above-mentioned deficiencies in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: an impact resistance detection device for a new energy battery pack, comprising a support plate, the top of which is fixedly connected to two support frames, each of which is slidably connected to a sliding block, and a mounting frame fixedly connected between the two sliding blocks;

[0007] A battery pack mounting mechanism is rotatably connected in the mounting frame, and the battery pack mounting mechanism is used to fix the battery pack. The bottom of the sliding block is fixedly connected to a lifting and impact mechanism connected to the support frame, and the lifting and impact mechanism is used to perform a lifting and impact test on the battery pack.

[0008] Furthermore, the battery pack mounting mechanism includes two mounting shafts rotatably connected to the mounting frame, a mounting plate is fixedly connected between the two mounting shafts, a fixed frame is fixedly connected to the top of the mounting plate, and a transmission mechanism connected to the mounting frame is transmission-connected on the mounting shaft, and the transmission mechanism is used to drive the mounting shaft to rotate.

[0009] Furthermore, the transmission mechanism includes an electric telescopic rod fixedly connected to the mounting frame, one end of the electric telescopic rod is fixedly connected to a transmission rack slidably connected to the mounting frame through a connecting block, and one side of the transmission rack is meshed with a transmission gear fixedly sleeved on the mounting shaft.

[0010] Furthermore, the lifting impact mechanism includes a fixed plate fixedly connected to the support frame, a transmission column is slidably connected to the fixed plate, the top of the transmission column is fixedly connected to a first connecting plate, a shock-absorbing buffer assembly is fixedly connected to the first connecting plate, the top of the shock-absorbing buffer assembly is fixedly connected to the sliding block by bolts, the bottom end of the transmission column is fixedly connected to the impact transmission plate, and a driving mechanism connected to the impact transmission plate is provided in the support frame, and the driving mechanism is used to drive the impact transmission plate to move.

[0011] Furthermore, the shock-absorbing and buffering assembly includes a shock-absorbing and damping telescopic rod fixedly connected to the first connecting plate, the top of the shock-absorbing and damping telescopic rod is fixedly connected to the second connecting plate, the second connecting plate is fixedly connected to the sliding block by bolts, and the outer surface of the shock-absorbing and damping telescopic rod is fixedly sleeved with a spring fixedly connected to the first connecting plate.

[0012] Furthermore, the driving mechanism includes an adjustment plate slidably connected to the support frame, the top of the adjustment plate is fixedly connected to a cylinder, the top of the cylinder is fixedly connected to an impact block, the top of the impact block is fixedly connected to a rubber buffer pad, and an adjustment mechanism connected to the support frame is provided on the adjustment plate, and the adjustment mechanism is used to drive the adjustment plate for adjustment.

[0013] Furthermore, the adjustment mechanism includes a transmission motor fixedly connected to the support frame, the output end of the transmission motor is fixedly connected to the drive shaft through a coupling, the outer surface of the drive shaft is fixedly sleeved with a first gear, the outer surface of the first gear is meshingly connected with two second gears, and the middle of the second gear is fixedly sleeved with an adjustment threaded rod threadedly connected to the adjustment plate.

[0014] A method for using an impact resistance detection device for a new energy battery pack comprises the following steps:

[0015] Step 1: Place the battery pack into the battery pack mounting mechanism in the mounting frame and then secure the battery pack;

[0016] Step 2: Adjust the horizontal angle between the battery pack and the ground in the mounting mechanism by rotating the mounting shaft and mounting plate according to the drop angle required for the battery pack to be tested.

[0017] Step 3: Adjust the lifting and impact mechanism so that the lifting and impact mechanism can move the battery pack to the required drop height during the lifting and impact process, and then perform a lifting and impact test;

[0018] Step 4: Remove the battery pack from the mounting mechanism after the drop impact test, and then perform an impact resistance test on the battery pack.

[0019] Compared with the prior art, the impact resistance detection device and method for use of a new energy battery pack provided by the present invention have the following beneficial effects:

[0020] (1) The device can perform impact tests on battery packs at different angles and heights through the synergistic effect of the battery pack installation mechanism and the lifting impact mechanism. The electric telescopic rod is used to drive the transmission rack and transmission gear to rotate, and then adjust the angles of the installation shaft, installation plate and fixed frame to meet the testing requirements of the battery pack at different drop angles. At the same time, through the cooperation of the driving mechanism and the adjustment mechanism, the position of the cylinder and the impact block can be accurately adjusted so that the battery pack can reach the required test height. This multi-angle and multi-height testing method can more comprehensively simulate the various impact conditions that the battery pack may encounter in actual use, thereby more accurately evaluating the impact resistance of the battery pack and improving the comprehensiveness and reliability of the battery pack impact detection.

[0021] (2) The device is equipped with a shock-absorbing and buffering component in the lifting and impact mechanism, which consists of a shock-absorbing and damping telescopic rod and a spring. During the rising and falling process of the battery pack, the contraction of the shock-absorbing and damping telescopic rod and the spring can simulate the shock absorption effect of a real car, making the test environment closer to the actual application scenario. In addition, different types of shock-absorbing components can be replaced during the test to simulate the impact resistance test of the battery pack on different shock-absorbing cars. This design that simulates a real shock-absorbing environment can more accurately reflect the impact resistance performance of the battery pack in actual use, provide a more valuable reference basis for the design and optimization of the battery pack, and further improve the impact resistance test effect of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 This is a first stereoscopic diagram of the external structure of the present invention;

[0024] Figure 2 This is a second stereoscopic view of the external structure of the present invention;

[0025] Figure 3 This is a third perspective view of the external structure of the present invention;

[0026] Figure 4 This is a fourth perspective view of the external structure of the present invention;

[0027] Figure 5 For the present invention Figure 2 A magnified view of middle A;

[0028] Figure 6 For the present invention Figure 3 Magnified view of B.

[0029] Description of reference numerals:

[0030] 1. Support plate; 2. Support frame; 3. Sliding block; 4. Mounting frame; 11. Mounting shaft; 12. Mounting plate; 13. Fixed frame; 14. Electric telescopic rod; 15. Transmission rack; 16. Transmission gear; 21. Fixed plate; 22. Transmission column; 23. First connecting plate; 24. Impact transmission plate; 25. Shock-absorbing and damping telescopic rod; 26. Second connecting plate; 27. Spring; 31. Adjusting plate; 32. Cylinder; 33. Impact block; 34. Transmission motor; 35. Drive shaft; 36. First gear; 37. Second gear; 38. Adjusting threaded rod. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Example 1

[0033] See also Figures 1 to 6 , an impact resistance detection device for a new energy battery pack and a method of use, comprising a support plate 1, two support frames 2 fixedly connected to the top of the support plate 1, a sliding block 3 slidably connected to each of the two support frames 2, and a mounting frame 4 fixedly connected between the two sliding blocks 3;

[0034] A battery pack mounting mechanism is rotatably connected in the mounting frame 4, and the battery pack mounting mechanism is used to fix the battery pack. The bottom of the sliding block 3 is fixedly connected to a lifting and impact mechanism connected to the support frame 2, and the lifting and impact mechanism is used to perform lifting and impact tests on the battery pack.

[0035] The battery pack mounting mechanism includes two mounting shafts 11 rotatably connected to the mounting frame 4, a mounting plate 12 is fixedly connected between the two mounting shafts 11, a fixed frame 13 is fixedly connected to the top of the mounting plate 12, and a transmission mechanism connected to the mounting frame 4 is transmission-connected on the mounting shaft 11, and the transmission mechanism is used to drive the mounting shaft 11 to rotate.

[0036] The transmission mechanism includes an electric telescopic rod 14 fixedly connected to the mounting frame 4, one end of the electric telescopic rod 14 is fixedly connected to a transmission rack 15 slidably connected to the mounting frame 4 through a connecting block, and one side of the transmission rack 15 is meshed with a transmission gear 16 fixedly sleeved on the mounting shaft 11.

[0037] The battery pack is placed into the fixed frame 13 and fixed. The electric telescopic rod 14 then moves the transmission rack 15 according to the desired angle of the battery pack during drop. The transmission rack 15 then rotates the transmission gear 16, which in turn rotates the mounting shaft 11. The mounting shaft 11 then rotates the mounting plate 12 and the fixed frame 13 to the desired drop angle. The lifting impact mechanism then moves the sliding block 3 and mounting frame 4 upward, moving the mounting frame 4 to the desired drop height before dropping. This allows impact testing of the battery pack at various angles and heights. The impact-tested battery pack is then tested, enabling impact testing of the battery pack at various heights and angles, further enhancing the comprehensiveness of the impact testing.

[0038] Example 2

[0039] Based on Example 1, please refer to Figures 2 to 5 As shown, the lifting impact mechanism includes a fixed plate 21 fixedly connected to the support frame 2, a transmission column 22 is slidably connected to the fixed plate 21, the top of the transmission column 22 is fixedly connected to a first connecting plate 23, the first connecting plate 23 is fixedly connected to a shock-absorbing buffer assembly, the top of the shock-absorbing buffer assembly is fixedly connected to the sliding block 3 by bolts, the bottom end of the transmission column 22 is fixedly connected to an impact transmission plate 24, and a driving mechanism connected to the impact transmission plate 24 is provided in the support frame 2, and the driving mechanism is used to drive the impact transmission plate 24 to move.

[0040] The shock-absorbing and buffering assembly includes a shock-absorbing and damping telescopic rod 25 fixedly connected to the first connecting plate 23, the top of the shock-absorbing and damping telescopic rod 25 is fixedly connected to the second connecting plate 26, the second connecting plate 26 is fixedly connected to the sliding block 3 by bolts, and the outer surface of the shock-absorbing and damping telescopic rod 25 is fixedly sleeved with a spring 27 fixedly connected to the first connecting plate 23.

[0041] The driving mechanism includes an adjustment plate 31 that is slidingly connected to the support frame 2, the top of the adjustment plate 31 is fixedly connected to a cylinder 32, the top of the cylinder 32 is fixedly connected to an impact block 33, and the top of the impact block 33 is fixedly connected to a rubber buffer pad. An adjustment mechanism connected to the support frame 2 is provided on the adjustment plate 31, and the adjustment mechanism is used to drive the adjustment plate 31 for adjustment.

[0042] The adjustment mechanism includes a transmission motor 34 fixedly connected to the support frame 2. The transmission motor 34 is controlled by a PLC programming program, and can control the transmission motor 34 to rotate forward and backward and rotate at an angle. The output end of the transmission motor 34 is fixedly connected to a drive shaft 35 through a coupling. The outer surface of the drive shaft 35 is fixedly sleeved with a first gear 36. The outer surface of the first gear 36 is meshedly connected to two second gears 37. The middle of the second gear 37 is fixedly sleeved with an adjustment threaded rod 38 threadedly connected to the adjustment plate 31.

[0043] The transmission motor 34 drives the drive shaft 35 to rotate, which in turn drives the adjustment threaded rod 38 via the first gear 36 and the second gear 37. The adjustment threaded rod 38 drives the adjustment plate 31 to move. The adjustment plate 31 drives the cylinder 32 and the impact block 33 to adjust the cylinder 32. According to the stroke of the cylinder 32, the cylinder 32 is moved to the corresponding position to adjust to the desired test height. The cylinder 32 then drives the impact block 33 to move, which in turn drives the impact transmission plate 24 and the transmission column 22. The transmission column 22 drives the first connecting plate 23 to move. The first connecting plate 23 drives the shock-absorbing and buffering assembly and the second connecting plate 26 upward. The second connecting plate 26 drives the sliding block 3 to move rapidly upward to the test height. During this movement, the contraction of the shock-absorbing and damping telescopic rod 25 and the spring 27 provides cushioning, simulating the shock absorption of a real car. The cylinder 32 then rapidly contracts, causing the sliding block 3, mounting frame 4, and battery pack to fall rapidly downward under the force of gravity. The contraction of the shock-absorbing and damping telescopic rod 25 and spring 27 provides cushioning during the fall, simulating the shock absorption of a real-world vehicle. Furthermore, different types of shock-absorbing components can be replaced during the testing process, simulating the impact resistance of the battery pack on vehicles with different shock absorption characteristics. This allows for simulated impact testing of the battery pack at different heights, further enhancing the effectiveness of the impact resistance testing.

[0044] A method for using an impact resistance detection device for a new energy battery pack comprises the following steps:

[0045] Step 1: Place the battery pack into the battery pack mounting mechanism in the mounting frame 4 and then secure the battery pack;

[0046] Step 2: According to the drop angle required for the battery pack to be detected, the horizontal angle between the battery pack in the mounting mechanism and the ground is adjusted by rotating the mounting shaft 11 and the mounting plate 12;

[0047] Step 3: Adjust the lifting and impact mechanism so that the lifting and impact mechanism can move the battery pack to the required drop height during the lifting and impact process, and then perform a lifting and impact test;

[0048] Step 4: Remove the battery pack from the mounting mechanism after the drop impact test, and then perform an impact resistance test on the battery pack.

[0049] Working Principle: During use, the battery pack is placed into the fixed frame 13 and fixed. Then, according to the required angle of the battery pack when falling, the electric telescopic rod 14 drives the transmission rack 15 to move, and the transmission rack 15 drives the transmission gear 16 to rotate. The transmission gear 16 drives the installation shaft 11 to rotate, and the installation shaft 11 drives the mounting plate 12 and the fixed frame 13 to rotate to the impact angle of the fall. The lifting impact mechanism drives the sliding block 3 and the installation frame 4 upward, drives the installation frame 4 to the desired test descent height, and then falls, thereby realizing impact testing of the battery pack at different angles and heights. The battery pack after the impact test is then tested, thereby realizing impact testing of the battery pack at different heights and angles, further improving the comprehensiveness of the battery pack impact test.

[0050] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An anti-impact detection device for a new energy battery pack, characterized in that: include: A support plate (1), wherein the top of the support plate (1) is fixedly connected to two support frames (2), a sliding block (3) is slidably connected to each of the two support frames (2), and a mounting frame (4) is fixedly connected between the two sliding blocks (3); A battery pack installation mechanism is rotatably connected in the installation frame (4), and the battery pack installation mechanism is used to fixedly install the battery pack. The bottom of the sliding block (3) is fixedly connected to a lifting impact mechanism connected to the support frame (2), and the lifting impact mechanism is used to perform a lifting impact test on the battery pack.

2. The anti-shock detection device for a new energy battery pack according to claim 1, characterized in that: The battery pack installation mechanism comprises two installation shafts (11) rotatably connected to the installation frame (4), a installation plate (12) is fixedly connected between the two installation shafts (11), a fixed frame (13) is fixedly connected to the top of the installation plate (12), and a transmission mechanism connected to the installation frame (4) is transmission-connected on the installation shaft (11), and the transmission mechanism is used to drive the installation shaft (11) to rotate.

3. The anti-impact detection device for a new energy battery pack according to claim 2, characterized in that: The transmission mechanism comprises an electric telescopic rod (14) fixedly connected to the mounting frame (4); one end of the electric telescopic rod (14) is fixedly connected to a transmission rack (15) slidably connected to the mounting frame (4) through a connecting block; one side of the transmission rack (15) is meshedly connected to a transmission gear (16) fixedly sleeved to the mounting shaft (11).

4. The anti-shock detection device for a new energy battery pack according to claim 1, characterized in that: The lifting impact mechanism comprises a fixed plate (21) fixedly connected to the support frame (2), a transmission column (22) is slidably connected to the fixed plate (21), a first connecting plate (23) is fixedly connected to the top of the transmission column (22), a shock-absorbing buffer assembly is fixedly connected to the first connecting plate (23), the top of the shock-absorbing buffer assembly is fixedly connected to the sliding block (3) by bolts, the bottom end of the transmission column (22) is fixedly connected to the impact transmission plate (24), and a driving mechanism connected to the impact transmission plate (24) is provided in the support frame (2), and the driving mechanism is used to drive the impact transmission plate (24) to move.

5. The anti-shock detection device for a new energy battery pack according to claim 4, characterized in that: The shock-absorbing and buffering assembly comprises a shock-absorbing and damping telescopic rod (25) fixedly connected to a first connecting plate (23); a second connecting plate (26) is fixedly connected to the top of the shock-absorbing and damping telescopic rod (25); the second connecting plate (26) is fixedly connected to the sliding block (3) via bolts; and a spring (27) fixedly connected to the first connecting plate (23) is fixedly sleeved on the outer surface of the shock-absorbing and damping telescopic rod (25).

6. The anti-shock detection device for a new energy battery pack according to claim 4, characterized in that: The driving mechanism comprises an adjustment plate (31) slidably connected to the support frame (2), a cylinder (32) is fixedly connected to the top of the adjustment plate (31), an impact block (33) is fixedly connected to the top of the cylinder (32), and a rubber buffer pad is fixedly connected to the top of the impact block (33), and an adjustment mechanism connected to the support frame (2) is provided on the adjustment plate (31), and the adjustment mechanism is used to drive the adjustment plate (31) to adjust.

7. The method for using the anti-impact detection device for a new energy battery pack according to claim 6, characterized in that: The adjustment mechanism comprises a transmission motor (34) fixedly connected to the support frame (2); an output end of the transmission motor (34) is fixedly connected to a drive shaft (35) via a coupling; a first gear (36) is fixedly sleeved on the outer surface of the drive shaft (35); two second gears (37) are meshedly connected to the outer surface of the first gear (36); and an adjustment threaded rod (38) threadedly connected to the adjustment plate (31) is fixedly sleeved in the middle of the second gear (37).

8. A method for using the impact resistance detection device for a new energy battery pack according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Place the battery pack into the battery pack mounting mechanism in the mounting frame (4), and then secure the battery pack; Step 2: According to the falling angle of the battery pack to be detected, the horizontal angle between the battery pack in the installation mechanism and the ground is adjusted by driving the installation shaft (11) and the installation plate (12) to rotate; Step 3: Adjust the lifting and impact mechanism so that the lifting and impact mechanism can move the battery pack to the required drop height during the lifting and impact process, and then perform a lifting and impact test; Step 4: Remove the battery pack from the mounting mechanism after the drop impact test, and then perform an impact resistance test on the battery pack.

Images