A power battery shell impact testing device

Abstract

The utility model discloses a power battery shell impact testing arrangement, including base, the base inside is provided with first removal subassembly, the base top is provided with first moving plate through first removal subassembly, the first moving plate inside is provided with second removal subassembly, the first moving plate top is provided with second moving plate through second removal subassembly, the second moving plate top is overlapped with power battery shell body, the second moving plate top is provided with clamping subassembly, the base top is provided with adjusting assembly, the base top is provided with moving frame through adjusting assembly, the moving frame inside is provided with fixed component, the moving frame inside is provided with fixed sleeve through fixed component, can carry out impact test to the different position of power battery shell body, realizes the point -by -point impact to all potential weak area such as edge, edge, weld, reinforcing rib root portion, has eliminated the testing blind area fundamentally.

Description

Technical Field

[0001] This utility model relates to the field of power battery casing production technology, and in particular to a power battery casing impact testing device. Background Technology

[0002] The power battery casing is the external structural component of the power battery (or cell). It is used to support and protect the battery module or cell, preventing physical damage (such as impact, squeezing, water immersion, etc.), short circuits, leakage, and external environmental influences (such as moisture and dust intrusion). At the same time, it provides structural support, heat dissipation management, and sealing to ensure that the battery works stably under extreme conditions. Its performance is directly related to the safety and overall performance of the battery system. In order to inspect the quality of the power battery casing, the physical performance of the power battery casing is often tested by an impact testing device.

[0003] Chinese Patent Application Publication No. CN219104600U discloses a single-cell battery drop hammer impact testing device based on a power battery system, including a frame assembly, an impact assembly, a power assembly, and a battery fixing assembly. The advantages of this invention are: as the spiral push rod rotates, the compression spring is compressed, resulting in greater power; that is, the power provided can be adjusted according to the number of rotations of the spiral push rod, enabling the simulation of tests with different impact forces; it is equipped with both a square impact head and a pointed impact head.

[0004] Although the aforementioned impact testing device can be used to perform impact tests on the battery casing, the battery casing is mounted on the support frame, which means that each impact head can only impact the middle of the battery casing. This single impact point testing mode not only fails to cover the diverse locations where the battery casing may be impacted in actual use (such as edges, corners, seams, or weak structural areas), but may also lead to misjudgment of the overall impact resistance performance of the casing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a power battery casing impact testing device to solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An impact testing device for a power battery casing includes a base, a first movable component disposed inside the base, a first movable plate disposed on the top of the base via the first movable component, a second movable component disposed inside the first movable plate, a second movable plate disposed on the top of the first movable plate via the second movable component, a power battery casing body overlapping the top of the second movable plate, a clamping component disposed on the top of the second movable plate, an adjusting component disposed on the top of the base, a movable frame disposed on the top of the base via the adjusting component, a fixing component disposed inside the movable frame, a fixing sleeve disposed inside the movable frame via the fixing component, guide components disposed on both sides of the fixing sleeve, an installation component disposed inside the fixing sleeve, and an impact head disposed at the bottom of the fixing sleeve via the installation component.

[0007] Preferably, the first moving component includes a first motor fixedly installed on the front side of the base, the output end of the first motor extending through the base into the base and fixedly installed with a first screw, the surface of the first screw being threadedly connected to a first moving block, the first moving block being slidably connected to the base, and the first moving block being fixedly connected to a first moving plate.

[0008] Preferably, the second moving component includes a second motor fixedly installed on the right side of the first moving plate. The output end of the second motor extends through the first moving plate into the interior of the first moving plate and is fixedly installed with a second screw. A second moving block is threadedly connected to the surface of the second screw. The second moving block is slidably connected to the first moving plate and is fixedly connected to the second moving plate.

[0009] Preferably, the clamping assembly includes a fixed plate fixedly installed on the top of the second movable plate, a first electric push rod fixedly installed on the surface of the fixed plate, and a clamping plate fixedly installed at the output end of the first electric push rod.

[0010] Preferably, the adjustment assembly includes a support frame fixedly installed on the top of the base, a hydraulic push rod fixedly installed on the top of the support frame, and the output end of the hydraulic push rod fixedly connected to the movable frame.

[0011] Preferably, the fixing component includes a second electric push rod fixedly installed inside the movable frame, and a clamping block is fixedly installed at the output end of the second electric push rod, the clamping block being overlapped with the fixing sleeve.

[0012] Preferably, the guide assembly includes guide plates fixedly installed on the left and right sides of the fixed sleeve, and a guide rod is slidably connected inside the guide plate, the guide rod being fixedly connected to the base.

[0013] Preferably, the mounting assembly includes a fixing block inserted into the fixing sleeve, the fixing block being fixedly connected to the impact head, and a bolt being threadedly connected inside the fixing block, the bolt being threadedly connected to the fixing sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: During the impact test of the power battery casing body, the first moving plate can be moved back and forth by the first moving component to adjust the front and back position of the upper power battery casing body. The second moving component can be moved left and right by the second moving plate to adjust the left and right position of the upper power battery casing body. This allows the impact head to subsequently perform impact tests on different positions of the power battery casing body, realizing point-by-point impact on all potentially weak areas such as edges, corners, welds, and the roots of reinforcing ribs, fundamentally eliminating test blind spots. Attached Figure Description

[0015] Figure 1 This is a three-dimensional perspective view of the present invention; Figure 2 This is a left sectional view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is an exploded view of a partial structure of the present invention.

[0016] In the diagram: 1. Base; 2. First motor; 3. First screw; 4. First moving block; 5. First moving plate; 6. Second motor; 7. Second screw; 8. Second moving block; 9. Second moving plate; 10. Power battery casing body; 11. Fixing plate; 12. First electric push rod; 13. Clamping plate; 14. Support frame; 15. Hydraulic push rod; 16. Moving frame; 17. Second electric push rod; 18. Clamping block; 19. Fixing sleeve; 20. Fixing block; 21. Bolt; 22. Impact head; 23. Guide plate; 24. Guide rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Refer to Figure 1-4A power battery casing impact testing device includes a base 1, with a first moving component inside the base 1. A first moving plate 5 is mounted on the top of the base 1 via the first moving component. The first moving component includes a first motor 2 fixedly mounted on the front side of the base 1. The output end of the first motor 2 extends through the base 1 into the base 1 and is fixedly mounted with a first screw 3. A first moving block 4 is threadedly connected to the surface of the first screw 3. The first moving block 4 is slidably connected to the base 1 and fixedly connected to the first moving plate 5. The first moving component facilitates the provision of driving force for the forward and backward movement of the first moving plate 5, thereby enabling... The first movable plate 5 is used to adjust its front and rear positions. A second movable assembly is installed inside the first movable plate 5. A second movable plate 9 is mounted on the top of the first movable plate 5 via the second movable assembly. The second movable assembly includes a second motor 6 fixedly installed on the right side of the first movable plate 5. The output end of the second motor 6 extends through the first movable plate 5 into its interior and is fixedly mounted with a second screw 7. A second movable block 8 is threaded onto the surface of the second screw 7. The second movable block 8 is slidably connected to the first movable plate 5 and fixedly connected to the second movable plate 9. The second movable assembly facilitates the adjustment of the second movable plate 9. The movement provides the driving force, thus facilitating the adjustment of the left and right positions of the second moving plate 9. The top of the second moving plate 9 overlaps with the power battery housing body 10. A clamping assembly is provided on the top of the second moving plate 9. An adjustment assembly is provided on the top of the base 1. A moving frame 16 is mounted on the top of the base 1 via the adjustment assembly. A fixing assembly is provided inside the moving frame 16. A fixing sleeve 19 is mounted inside the moving frame 16 via the fixing assembly. Guide assemblies are provided on both the left and right sides of the fixing sleeve 19. An installation assembly is provided inside the fixing sleeve 19. An impact head 22 is mounted on the bottom of the fixing sleeve 19 via the installation assembly. This is a power battery housing impact testing device. During the impact test of the power battery housing body 10, the first moving plate 5 can be moved back and forth by the first moving component to adjust the front and back position of the upper power battery housing body 10. The second moving plate 9 can be moved left and right by the second moving component to adjust the left and right position of the upper power battery housing body 10. This allows the impact head 22 to subsequently perform impact tests on different positions of the power battery housing body 10, achieving point-by-point impact on all potentially weak areas such as edges, corners, welds, and the roots of reinforcing ribs, fundamentally eliminating test blind spots.

[0019] according to Figure 1As shown, the clamping assembly includes a fixed plate 11 fixedly installed on the top of the second movable plate 9. A first electric push rod 12 is fixedly installed on the surface of the fixed plate 11. A clamping plate 13 is fixedly installed at the output end of the first electric push rod 12. By setting the clamping assembly, it is convenient to clamp and fix the power battery housing body 10 from the four sides, so as to avoid the power battery housing body 10 from shifting during movement or testing.

[0020] according to Figure 3 As shown, the adjustment component includes a support frame 14 fixedly installed on the top of the base 1. A hydraulic push rod 15 is fixedly installed on the top of the support frame 14. The output end of the hydraulic push rod 15 is fixedly connected to the movable frame 16. By setting the adjustment component, it is easy to adjust the height of the movable frame 16, thereby making it easier to adjust the height of the impact head 22, so that the impact head 22 can better perform impact testing on the power battery housing body 10.

[0021] according to Figure 3 and Figure 4 As shown, the fixing component includes a second electric push rod 17 fixedly installed inside the movable frame 16. A clamping block 18 is fixedly installed at the output end of the second electric push rod 17. The clamping block 18 overlaps with the fixing sleeve 19. When the second electric push rod 17 moves the clamping blocks 18 closer together, the clamping blocks 18 clamp and fix the fixing sleeve 19, preventing it from moving downwards. When the second electric push rod 17 moves the clamping blocks 18 away from each other, the clamping blocks 18 separate from the fixing sleeve 19, releasing the fixation of the fixing sleeve 19. The fixing sleeve 19 will then move downwards due to its own gravity. The guide component includes components fixedly installed on the fixing sleeve 19. The guide plates 23 on the left and right sides have guide rods 24 slidably connected inside them. The guide rods 24 are fixedly connected to the base 1. The guide components facilitate the movement of the fixed sleeve 19. The mounting components include a fixing block 20 inserted into the fixed sleeve 19. The fixing block 20 is fixedly connected to the impact head 22. The fixing block 20 has a bolt 21 threaded inside it. The bolt 21 is threadedly connected to the fixed sleeve 19. The bolt 21 can be removed from the fixed sleeve 19 and the fixing block 20, and then the fixing block 20 can be pulled out from the fixed sleeve 19 to disassemble the impact head 22 for easy replacement.

[0022] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.

[0023] In use: The power battery casing 10 is placed on the second movable plate 9. The clamping plate 13 is moved towards the center by the first electric push rod 12, so that the clamping plate 13 clamps and fixes the power battery casing 10 on all four sides. During testing, the movable frame 16 is moved up and down by the hydraulic push rod 15, so that the impact head 22 can be moved up and down to adjust the height of the impact head 22. Then, the clamping blocks 18 are moved away from each other by the second electric push rod 17, so that the clamping blocks 18 are separated from the fixing sleeve 19, and the fixing sleeve 19 is released. Then, the fixing sleeve 19, fixing block 20, impact head 22, and guide plate 23 will move down together along the guide rod 24, so that the impact head 22 impacts the power battery casing 10. Then, the fixing sleeve 19, fixing block 20, impact head 22, and guide plate 23 are lifted, so that the fixing sleeve 19 and the movable frame are separated. 16. After contact, the clamping blocks 18 are brought closer together by the second electric push rod 17, so that the clamping blocks 18 clamp and fix the fixing sleeve 19. When it is necessary to change the position for testing, the first screw 3 is rotated by the first motor 2, so that the first moving block 4 moves back and forth along the base 1, so that the first moving plate 5 moves back and forth, so that the power battery housing body 10 above can move back and forth, so that the front and back position of the power battery housing body 10 can be adjusted. At the same time, the second screw 7 is rotated by the second motor 6, so that the second moving block 8 moves left and right along the first moving plate 5, so that the second moving plate 9 moves left and right, so that the power battery housing body 10 moves left and right, so that the left and right position of the power battery housing body 10 can be adjusted. After the adjustment is completed, the above test operation is repeated to complete the impact test at that position.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power battery casing impact testing device, comprising a base (1), characterized in that, The base (1) is provided with a first moving component inside. The top of the base (1) is provided with a first moving plate (5) through the first moving component. The first moving plate (5) is provided with a second moving component inside. The top of the first moving plate (5) is provided with a second moving plate (9) through the second moving component. The top of the second moving plate (9) is connected to the power battery housing body (10). The top of the second moving plate (9) is provided with a clamping component. The top of the base (1) is provided with an adjustment component. The top of the base (1) is provided with a moving frame (16) through the adjustment component. The moving frame (16) is provided with a fixing component inside. The moving frame (16) is provided with a fixing sleeve (19) through the fixing component inside. The fixing sleeve (19) is provided with guide components on both the left and right sides. The fixing sleeve (19) is provided with an installation component inside. The bottom of the fixing sleeve (19) is provided with an impact head (22) through the installation component.

2. The power battery casing impact testing device according to claim 1, characterized in that, The first moving component includes a first motor (2) fixedly installed on the front side of the base (1). The output end of the first motor (2) extends through the base (1) into the interior of the base (1) and is fixedly installed with a first screw (3). A first moving block (4) is threadedly connected to the surface of the first screw (3). The first moving block (4) is slidably connected to the base (1) and is fixedly connected to the first moving plate (5).

3. The power battery casing impact testing device according to claim 1, characterized in that, The second moving component includes a second motor (6) fixedly installed on the right side of the first moving plate (5). The output end of the second motor (6) extends through the first moving plate (5) into the interior of the first moving plate (5) and is fixedly installed with a second screw (7). A second moving block (8) is threadedly connected to the surface of the second screw (7). The second moving block (8) is slidably connected to the first moving plate (5) and fixedly connected to the second moving plate (9).

4. The power battery casing impact testing device according to claim 1, characterized in that, The clamping assembly includes a fixed plate (11) fixedly installed on the top of the second movable plate (9), a first electric push rod (12) fixedly installed on the surface of the fixed plate (11), and a clamping plate (13) fixedly installed at the output end of the first electric push rod (12).

5. The power battery casing impact testing device according to claim 1, characterized in that, The adjustment assembly includes a support frame (14) fixedly installed on the top of the base (1), and a hydraulic push rod (15) fixedly installed on the top of the support frame (14). The output end of the hydraulic push rod (15) is fixedly connected to the movable frame (16).

6. The power battery casing impact testing device according to claim 1, characterized in that, The fixing component includes a second electric push rod (17) fixedly installed inside the movable frame (16), and a clamping block (18) is fixedly installed at the output end of the second electric push rod (17). The clamping block (18) overlaps with the fixing sleeve (19).

7. The power battery casing impact testing device according to claim 1, characterized in that, The guide assembly includes guide plates (23) fixedly installed on the left and right sides of the fixed sleeve (19), and guide rods (24) are slidably connected inside the guide plates (23), and the guide rods (24) are fixedly connected to the base (1).

8. The power battery casing impact testing device according to claim 1, characterized in that, The mounting assembly includes a fixing block (20) inserted into the fixing sleeve (19), the fixing block (20) being fixedly connected to the impact head (22), and a bolt (21) being threadedly connected inside the fixing block (20), the bolt (21) being threadedly connected to the fixing sleeve (19).

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