Battery bottom ball strike test device

Abstract

The utility model relates to the technical field of battery tests, and discloses a battery bottom ball strike test device which comprises a test channel, and conveying grooves are symmetrically formed in the upper ends of the inner walls of the front side and the rear side of the test channel; and the adjusting mechanism is used for quickly adjusting the test position of the battery and comprises an electric driving roller which is arranged at the bottom end of the conveying groove. According to the utility model, through the combination of the conveying groove and the electric transmission roller, the conveying operation of a battery to be detected can be realized, the experimental position of the battery can be conveniently adjusted, the electric-hydraulic push rod can be controlled to work, the fixing plate can be pushed to clamp and fix the two ends of the battery, and the air cylinder can be controlled to work; the bottom of the battery can be hit to perform a ball hit test, and the impact strength of the test ball to the bottom of the battery can be detected and controlled through combination of a limiting bump, a limiting groove and a pressure sensor, so that the use precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing, in particular to a battery bottom ball impact testing device. Background Art

[0002] The popularity of new energy vehicles has brought fresh vitality to the automotive industry. However, since their battery packs are suspended on the vehicle chassis, they are easily damaged by foreign objects on the road during driving, causing mechanical damage and leading to safety accidents. During the production process, the bottom of the battery needs to be subjected to a ball impact test.

[0003] After searching, the authorization announcement number is CN221037930U, which discloses a battery pack bottom ball impact test device. The ball impact head is placed on the top of a magnet, the magnet is placed on a mounting seat, and an electromagnet with the same name is arranged circumferentially around the magnet. When the electromagnet with the same name is energized, it generates magnetism that repels the magnetism of the magnet, and the magnet drives the ball impact head to move toward the direction close to the bottom of the battery pack; by controlling the input current of the electromagnet with the same name, the extrusion speed of the ball impact head on the bottom of the battery pack and the ball impact speed are controlled, thereby achieving low-speed extrusion and high-speed ball impact.

[0004] In the process of realizing the present utility model, the inventors found that at least the following problems in the prior art have not been solved. In the above case, the squeezing speed and the hitting speed of the ball hitting head on the bottom of the battery pack are controlled by controlling the input current of the electromagnet of the same name. However, during use, the impact force of the ball hitting head on the bottom of the battery pack cannot be accurately controlled, and the accuracy of use is limited.

[0005] Therefore, we propose a battery bottom ball impact test device that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a battery bottom ball impact test device, which solves the problems raised in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a battery bottom ball impact test device comprising a test channel with symmetrically defined conveyor troughs at the upper ends of the front and rear inner walls; an adjustment mechanism for quickly adjusting the battery test position, comprising a motorized transmission roller disposed at the bottom end of the conveyor trough; and a test mechanism for performing a battery bottom ball impact test, comprising a cylinder, a test ball, and a pressure sensor. A top block is fixedly mounted on the telescopic end of the cylinder, a limit slot defined on its upper surface, and a limit projection slidably connected within the limit slot. One end of the limit projection, positioned outside the limit slot, is fixedly connected to the bottom end of the test ball. The pressure sensor is fixedly connected to the inner wall at the bottom end of the limit slot.

[0008] As an optional solution of the technical solution of the present application, brackets are symmetrically installed in the middle of the front and rear sides of the test channel, and an electro-hydraulic push rod is fixedly connected to the middle of the upper surface of the bracket. The telescopic end of the electro-hydraulic push rod passes through the bracket and is fixedly connected to the middle of the upper surface of the fixed plate.

[0009] As an optional solution of the technical solution of the present application, the pressure sensor is pressed against the bottom side of the limiting protrusion, and the size of the limiting protrusion matches that of the limiting groove.

[0010] As an optional solution of the technical solution of the present application, the cylinder is fixedly connected to the inner wall of the bottom end of the test channel, and the cylinder is placed between the two groups of brackets.

[0011] As an optional solution of the technical solution of the present application, an industrial control computer is fixedly connected to the outside of the test channel, the data output end of the pressure sensor is connected to the data input end of the industrial control computer, and the signal output end of the industrial control computer is connected to the signal input end of the cylinder.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: through the combination of the conveying trough and the electric drive roller, the conveying operation of the battery to be tested can be realized, the experimental position of the battery can be conveniently adjusted, the operation of the electro-hydraulic push rod can be controlled, the fixed plate can be pushed to clamp the two ends of the battery, the operation of the cylinder can be controlled, and through the combination of the top block and the test ball, the bottom of the battery can be hit to perform a ball impact test. Through the combination of the limiting protrusion, the limiting groove and the pressure sensor, the impact force of the test ball on the bottom of the battery can be detected and controlled, and the accuracy of use is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a top view of a battery bottom ball impact test device according to the present invention;

[0015] Figure 2 This is a side view of a battery bottom ball impact test device according to the present invention;

[0016] Figure 3 The utility model is a schematic diagram of the connection between the top block and the test ball of a battery bottom ball impact test device.

[0017] In the figure: 1. Test channel; 11. Conveying trough; 12. Electric drive roller; 13. Bracket; 14. Electro-hydraulic push rod; 15. Fixing plate; 16. Cylinder; 17. Ejector block; 18. Test ball; 2. Limiting groove; 21. Limiting protrusion; 22. Pressure sensor; 23. Industrial control computer. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: a battery bottom ball impact test device, comprising a test channel 1, wherein conveying grooves 11 are symmetrically opened at the upper ends of the inner walls on both sides of the front and rear of the test channel 1; an adjustment mechanism: used to quickly adjust the test position of the battery, the adjustment mechanism comprises an electric transmission roller 12, and the electric transmission roller 12 is arranged at the bottom end of the conveying groove 11, and brackets 13 are symmetrically installed in the middle of the front and rear sides of the test channel 1, and an electro-hydraulic push rod 14 is fixedly connected to the middle of the upper surface of the bracket 13, and the telescopic end of the electro-hydraulic push rod 14 passes through the bracket 13 and is fixedly connected to the middle of the upper surface of the fixing plate 15.

[0019] In this technical solution, the battery to be tested is placed at one end of the conveying trough 11, and the electric drive roller 12 is controlled by the industrial control computer 23 to drive the battery to move in the test channel 1, so as to facilitate the adjustment of the test position of the battery (it should be noted that the electric drive roller 12 is a prior art, and the specific structure will not be elaborated in detail, and the existing structure can be referred to). When the test position of the battery moves to directly above the test ball 18, the electro-hydraulic push rods 14 on the upper surface of the two groups of brackets 13 are controlled to work, which can push the fixed plate 15 to clamp the two ends of the battery, thereby further improving the stability of the battery during the test.

[0020] In this embodiment, the test mechanism is used for a ball impact test on the bottom of the battery. The test mechanism includes a cylinder 16, a test ball 18 and a pressure sensor 22. The telescopic end of the cylinder 16 is fixedly mounted with a top block 17. A limiting groove 2 is provided on the upper surface of the top block 17. The internal sliding connection of the limiting groove 2 is provided with a limiting protrusion 21. The limiting protrusion 21 is placed on the outer side of the limiting groove 2 and is fixedly connected to the bottom end of the test ball 18. The cylinder 16 is fixedly connected to the inner wall of the bottom end of the test channel 1, and the cylinder 16 is placed between the two groups of brackets 13.

[0021] In this technical solution, the cylinder 16 is controlled by the industrial control computer 23 to push the top block 17 upward, thereby pushing the test ball 18 to move vertically upward and hit the bottom of the battery fixed on the inside of the conveying trough 11, further performing the ball impact test.

[0022] In this embodiment, the pressure sensor 22 is fixedly connected to the inner wall of the bottom end of the limit groove 2, the pressure sensor 22 is pressed against the bottom side of the limit protrusion 21, the size of the limit protrusion 21 matches the size of the limit groove 2, and an industrial control computer 23 is fixedly connected to the outside of the test channel 1. The data output end of the pressure sensor 22 is connected to the data input end of the industrial control computer 23, and the signal output end of the industrial control computer 23 is connected to the signal input end of the cylinder 16.

[0023] In this technical solution, the pressure sensor 22 is pressed against the bottom side of the limiting protrusion 21. The pressure sensor 22 can detect the pressure of the limiting protrusion 21, thereby detecting the impact force of the test ball 18 hitting the bottom of the battery, and then transmits the data to the industrial control computer 23. When the impact force of the test ball 18 reaches the threshold value of the pressure sensor 22, the industrial control computer 23 can control the cylinder 16 to stop working, thereby accurately controlling the impact force of the test ball 18 and achieving high test accuracy.

[0024] When a battery bottom ball impact test device is used, the battery to be tested is placed at one end of the conveying trough 11, and the electric drive roller 12 is controlled by the industrial control computer 23 to drive the battery to move in the test channel 1, which is convenient for adjusting the test position of the battery. When the test position of the battery moves to just above the test ball 18, the electro-hydraulic push rod 14 on the upper surface of the two sets of brackets 13 is controlled to work, which can push the fixed plate 15 to clamp the two ends of the battery, further improving the stability of the battery test process. The cylinder 16 is controlled by the industrial control computer 23 to work, which can push The top block 17 moves upward, thereby pushing the test ball 18 to move vertically upward and hit the bottom of the battery fixed on the inside of the conveying trough 11. The pressure sensor 22 is pressed against the bottom side of the limiting protrusion 21. The pressure sensor 22 can detect the pressure of the limiting protrusion 21, thereby detecting the impact force of the test ball 18 hitting the bottom of the battery, and then transmits the data to the industrial control computer 23. When the impact force of the test ball 18 reaches the threshold value of the pressure sensor 22, the industrial control computer 23 can control the cylinder 16 to stop working, thereby accurately controlling the impact force of the test ball 18 and achieving high test accuracy.

Claims

1. A battery bottom ball impact test device, comprising a test channel (1), characterized in that: Conveying grooves (11) are symmetrically provided at the upper ends of the inner walls on both sides of the front and rear of the test channel (1); An adjusting mechanism is used for quickly adjusting the test position of the battery, wherein the adjusting mechanism comprises an electric transmission roller (12), and the electric transmission roller (12) is arranged at the bottom end of the conveying trough (11); A test mechanism: used for a battery bottom ball impact test, the test mechanism comprises a cylinder (16), a test ball (18) and a pressure sensor (22), the telescopic end of the cylinder (16) is fixedly mounted with a top block (17), the upper surface of the top block (17) is provided with a limiting groove (2), the interior of the limiting groove (2) is slidably connected to a limiting protrusion (21), one end of the limiting protrusion (21) is located outside the limiting groove (2) and is fixedly connected to the bottom end of the test ball (18), and the pressure sensor (22) is fixedly connected to the inner wall of the bottom end of the limiting groove (2).

2. A battery bottom ball impact test device according to claim 1, characterized in that: Brackets (13) are symmetrically installed in the middle of the front and rear sides of the test channel (1), and an electro-hydraulic push rod (14) is fixedly connected to the middle of the upper surface of the bracket (13). The telescopic end of the electro-hydraulic push rod (14) passes through the bracket (13) and is fixedly connected to the middle of the upper surface of the fixing plate (15).

3. The battery bottom ball impact test device according to claim 1, characterized in that: The pressure sensor (22) is pressed against the bottom side of the limiting protrusion (21), and the size of the limiting protrusion (21) matches that of the limiting groove (2).

4. The battery bottom ball impact test device according to claim 2, characterized in that: The cylinder (16) is fixedly connected to the inner wall of the bottom end of the test channel (1), and the cylinder (16) is placed between the two groups of brackets (13).

5. The battery bottom ball impact test device according to claim 1, characterized in that: An industrial control computer (23) is fixedly connected to the outside of the test channel (1), a data output end of the pressure sensor (22) is connected to a data input end of the industrial control computer (23), and a signal output end of the industrial control computer (23) is connected to a signal input end of the cylinder (16).

Images