A battery pack eol offline test equipment

Abstract

The utility model relates to battery package detection technical field, and disclose a kind of battery package EOL off-line test equipment, including test workbench, the conductive sponge is embedded in the bottom end inside test workbench, the conductive sponge bottom surface is bonded with the metal frame of test workbench by conductive glue, four groups L type fixed plate are symmetrically arranged inside test workbench, each group L type fixed plate inside is pasted antistatic rubber, and one side of test workbench is equipped with ion fan.The battery package EOL off-line test equipment, by conductive sponge is embedded in the bottom end inside test workbench, and is bonded with the metal frame by conductive glue, while pasting antistatic rubber inside L type fixed plate, cooperate the setting of ion fan and ground terminal, can effectively guide and remove the static electricity generated in testing process, prevent static electricity from causing damage to the internal precision electronic components of battery package, greatly improve the safety of testing process and the reliability of battery package product quality.

Description

Technical Field

[0001] This utility model relates to the field of battery pack testing technology, specifically a battery pack EOL (End-of-Life) testing device. Background Technology

[0002] In the new energy vehicle industry, the battery pack is a core power component, and its quality and performance are directly related to the safety and reliability of the entire vehicle. The end-of-life (EOL) test is a key step in ensuring the quality of the battery pack before it leaves the factory.

[0003] The existing patent document CN212872555U provides a battery pack EOL offline testing device. This utility model can reduce the trouble caused by repeatedly changing connectors during the testing process, thereby improving the testing efficiency.

[0004] However, existing battery pack EOL (End-of-Life) testing equipment is not convenient for providing reliable anti-static protection for battery packs. Due to the lack of effective anti-static design, static electricity accumulation can easily cause irreversible damage to the precision electronic components inside the battery pack, which not only affects the accuracy of test results but may also lead to a decrease in the yield of battery packs, increasing production costs and after-sales risks. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a battery pack EOL (Electrostatic Discharge) testing device to solve the problem mentioned in the background art that the existing battery pack EOL testing devices are not convenient for providing reliable anti-static protection measures for battery packs.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a battery pack EOL offline testing device, including a testing workbench, wherein a conductive sponge is embedded in the bottom of the testing workbench, and the bottom surface of the conductive sponge is bonded to the metal frame of the testing workbench by conductive adhesive, and four sets of L-shaped fixing plates are symmetrically arranged inside the testing workbench.

[0009] Each set of L-shaped fixing plates has anti-static rubber pasted on the inside. An ion fan is installed on one side of the test workbench, with the air outlet of the ion fan facing the battery pack fixing area. The ion fan body is equipped with a fan grounding terminal, and the test workbench is equipped with a workbench grounding terminal.

[0010] As a further improvement to the above solution, a fixing groove is fixedly provided on one side of the upper surface of the test workbench, and a positioning motor is installed on one side inside the fixing groove.

[0011] As a further improvement to the above scheme, the transmission end of the No. 1 positioning motor is fixedly connected to the No. 1 bidirectional lead screw, and the end of the No. 1 bidirectional lead screw away from the No. 1 positioning motor is connected to the fixed groove through a bearing.

[0012] As a further improvement to the above solution, a moving block is connected to the outer surface of the first bidirectional lead screw by a thread. The first moving block is slidably connected to the fixed groove, and a fixed frame is fixedly connected to one side of the first moving block.

[0013] As a further improvement to the above solution, a slider is fixedly connected to the side of the fixed frame away from the first moving block, and a sliding groove is fixedly provided on the upper surface of the test workbench away from the fixed groove, with the slider slidingly engaging with the sliding groove.

[0014] As a further improvement to the above solution, a second positioning motor is fixedly installed on one side inside the fixed frame, and a second bidirectional lead screw is fixedly connected to the transmission end of the second positioning motor.

[0015] As a further improvement to the above solution, the end of the second bidirectional lead screw away from the second positioning motor is connected to the fixed frame through a bearing, and the outer surface of the second bidirectional lead screw is connected to the second moving block through a thread. The L-shaped fixed plate is fixedly connected to the second moving block.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This battery pack EOL off-line testing equipment effectively eliminates static electricity generated during the test process by embedding conductive sponge at the bottom of the test workbench and bonding it to the metal frame with conductive adhesive, while attaching antistatic rubber to the inside of the L-shaped fixing plate. With the addition of an ion fan and grounding terminals, it prevents static electricity from damaging the precision electronic components inside the battery pack, greatly improving the safety of the test process and the reliability of the battery pack product quality.

[0018] 2. The battery pack EOL off-line testing equipment, through the positioning structure consisting of a fixed slot, a first positioning motor, a first bidirectional lead screw, a first moving block and a fixed frame set on the testing workbench, as well as a second positioning motor, a second bidirectional lead screw and a second moving block inside the fixed frame, can achieve precise positioning and clamping of the battery pack in two dimensions, ensuring the stability of the battery pack position during the test, avoiding inaccurate test data due to shaking, and effectively improving the accuracy and reliability of the test results;

[0019] 3. The battery pack EOL off-line testing equipment, through the sliding cooperation of the slider and the slide groove, makes the horizontal movement of the fixing frame smoother and more stable, reduces the frictional resistance during the operation of the positioning structure, reduces equipment wear, extends the service life of the equipment, and also improves the convenience and efficiency of battery pack positioning and fixing operations, which is conducive to improving the overall efficiency of the testing work. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the test workbench of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the fixing frame of this utility model;

[0023] Figure 4 This is a magnified structural diagram showing a partial detail of the ion fan of this utility model.

[0024] In the diagram: 1. Test workbench; 2. Conductive sponge; 3. L-shaped fixing plate; 4. Antistatic rubber; 5. Ionizing fan; 6. Fan grounding terminal; 7. Workbench grounding terminal; 8. Fixing groove; 9. Positioning motor No. 1; 10. Bidirectional lead screw No. 1; 11. Moving block No. 1; 12. Fixing frame; 13. Slider; 14. Slide groove; 15. Positioning motor No. 2; 16. Bidirectional lead screw No. 2; 17. Moving block No. 2. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a battery pack EOL offline testing device, including a test workbench 1, a conductive sponge 2 embedded in the bottom of the test workbench 1, the bottom surface of the conductive sponge 2 being bonded to the metal frame of the test workbench 1 by conductive adhesive, and four sets of L-shaped fixing plates 3 symmetrically arranged inside the test workbench 1.

[0027] Each L-shaped fixing plate 3 has anti-static rubber 4 pasted on the inside. An ion fan 5 is installed on one side of the test workbench 1. The air outlet of the ion fan 5 faces the battery pack fixing area. The ion fan 5 is equipped with a fan grounding terminal 6. The test workbench 1 is equipped with a workbench grounding terminal 7.

[0028] After the battery pack is secured, the ion fan 5 starts working, with its outlet facing the battery pack securing area. It blows positively and negatively charged ions towards the battery pack and its surrounding space to neutralize static electricity in the test environment. At the same time, the conductive sponge 2, anti-static rubber 4, fan grounding terminal 6, and workbench grounding terminal 7 work together. The conductive sponge 2 conducts any static electricity that may be generated on the test workbench 1 to the metal frame through the conductive rubber, and then discharges it through the workbench grounding terminal 7. The anti-static rubber 4 prevents static electricity from being generated when the L-shaped fixing plate 3 comes into contact with the battery pack. The fan grounding terminal 6 conducts away the static electricity generated by the ion fan 5 in a timely manner, providing comprehensive anti-static protection for the battery pack. At this point, the positioning, fixing, and anti-static treatment of the battery pack are completed, and the EOL offline testing can be carried out.

[0029] A fixing groove 8 is fixedly installed on one side of the upper surface of the test workbench 1. A positioning motor 9 is installed inside the fixing groove 8 on one side. A bidirectional lead screw 10 is fixedly connected to the transmission end of the positioning motor 9. The end of the bidirectional lead screw 10 away from the positioning motor 9 is connected to the fixing groove 8 through a bearing. A moving block 11 is threadedly connected to the outer surface of the bidirectional lead screw 10. The moving block 11 is slidably connected to the fixing groove 8. A fixing frame 12 is fixedly connected to one side of the moving block 11. The side of the fixing frame 12 away from the moving block 11... A slider 13 is fixedly connected. A slide groove 14 is fixedly provided on the side of the upper surface of the test workbench 1 away from the fixed groove 8. The slider 13 slides in conjunction with the slide groove 14. A second positioning motor 15 is fixedly installed on one side inside the fixed frame 12. A second bidirectional lead screw 16 is fixedly connected to the transmission end of the second positioning motor 15. The end of the second bidirectional lead screw 16 away from the second positioning motor 15 is connected to the fixed frame 12 through a bearing. A second moving block 17 is connected to the outer surface of the second bidirectional lead screw 16 through a thread. An L-shaped fixed plate 3 is fixedly connected to the second moving block 17.

[0030] When performing an EOL (End-of-Life) test on the battery pack, first place the battery pack on the test workbench 1. Then, start the first positioning motor 9. The first positioning motor 9 drives the first bidirectional lead screw 10 to rotate. Since the first moving block 11 is threadedly connected to the first bidirectional lead screw 10, and the first moving block 11 is slidably connected to the fixing groove 8, when the lead screw rotates, the two first moving blocks 11 will move along the first bidirectional lead screw 10 towards the center or sides, thereby driving the fixing frame 12 to move horizontally on the test workbench 1, performing preliminary positioning of the battery pack. During the movement of the fixing frame 12, one side of its... The slider 13 slides within the groove 14, ensuring the stability and accuracy of the movement of the fixed frame 12. After the lateral positioning is completed, the second positioning motor 15 is started, which drives the second bidirectional lead screw 16 to rotate. Similarly, the second moving block 17 is connected to the second bidirectional lead screw 16 by a thread. The second moving block 17 moves along the second bidirectional lead screw 16 during rotation, while the L-shaped fixing plate 3 is fixedly connected to the second moving block 17. Therefore, the four sets of L-shaped fixing plates 3 will synchronously approach and clamp the battery pack, thereby fixing the battery pack and ensuring that the battery pack will not shake during the test.

[0031] Working Principle: When performing EOL (End-of-Life) testing on the battery pack, the battery pack is first placed on the test workbench 1. At this time, the first positioning motor 9 is started, driving the first bidirectional lead screw 10 to rotate. Since the first moving block 11 is threadedly connected to the first bidirectional lead screw 10 and slidably connected to the fixing groove 8, as the lead screw rotates, the two first moving blocks 11 will move along the first bidirectional lead screw 10 towards the center or sides, thereby driving the fixing frame 12 to move horizontally on the test workbench 1, performing initial positioning of the battery pack. During the movement of the fixing frame 12, the slider 13 on one side slides within the sliding groove 14, ensuring the stability and accuracy of the fixing frame 12's movement. After completing the horizontal positioning, the second positioning motor 15 is started, driving the second bidirectional lead screw 16 to rotate. Similarly, the second moving block 17 is threadedly connected to the second bidirectional lead screw 16, and during rotation, the second moving block 17 moves along the second bidirectional lead screw 16. The L-shaped fixing plate 3 is fixedly connected to the second moving block 17, so the four sets of L-shaped fixing plates 3 will move towards the battery pack and clamp it simultaneously to fix the battery pack and ensure that the battery pack will not shake during the test. After the battery pack is fixed, the ion fan 5 starts to work, and its air outlet is directed towards the battery pack fixing area, blowing ions with positive and negative charges towards the battery pack and its surrounding space to neutralize the static electricity in the test environment. At the same time, the conductive sponge 2, the anti-static rubber 4, the fan grounding terminal 6, and the workbench grounding terminal 7 work together. The conductive sponge 2 conducts the static electricity that may be generated on the test workbench 1 to the metal frame through the conductive rubber, and then conducts it out through the workbench grounding terminal 7. The anti-static rubber 4 prevents the generation of static electricity when the L-shaped fixing plate 3 comes into contact with the battery pack, and the fan grounding terminal 6 conducts the static electricity generated by the ion fan 5 in time, providing anti-static protection for the battery pack in all aspects. At this point, the positioning and fixing of the battery pack and the anti-static treatment are completed, and the EOL offline test can be carried out.

[0032] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A battery pack EOL (End-of-Life) testing device, comprising a testing workbench (1), characterized in that: The bottom of the test workbench (1) is fitted with conductive sponge (2), and the bottom surface of the conductive sponge (2) is bonded to the metal frame of the test workbench (1) with conductive adhesive. Four sets of L-shaped fixing plates (3) are symmetrically arranged inside the test workbench (1). Antistatic rubber (4) is pasted on the inner side of each L-shaped fixing plate (3). An ion fan (5) is installed on one side of the test workbench (1). The air outlet of the ion fan (5) faces the battery pack fixing area. The body of the ion fan (5) is equipped with a fan grounding terminal (6). The test workbench (1) is equipped with a workbench grounding terminal (7).

2. The battery pack EOL (End-of-Life) testing equipment according to claim 1, characterized in that: A fixing groove (8) is fixedly provided on one side of the upper surface of the test workbench (1), and a positioning motor (9) is installed on one side inside the fixing groove (8).

3. The battery pack EOL (End-of-Life) testing equipment according to claim 2, characterized in that: The transmission end of the No. 1 positioning motor (9) is fixedly connected to the No. 1 bidirectional lead screw (10), and the end of the No. 1 bidirectional lead screw (10) away from the No. 1 positioning motor (9) is connected to the fixed groove (8) through a bearing.

4. The battery pack EOL (End-of-Life) testing equipment according to claim 3, characterized in that: The outer surface of the first bidirectional lead screw (10) is connected to a first moving block (11) by a thread. The first moving block (11) is slidably connected to the fixed groove (8). A fixed frame (12) is fixedly connected to one side of the first moving block (11).

5. The battery pack EOL (End-of-Life) testing equipment according to claim 4, characterized in that: A slider (13) is fixedly connected to the side of the fixed frame (12) away from the first moving block (11), and a sliding groove (14) is fixedly provided on the side of the upper surface of the test workbench (1) away from the fixed groove (8). The slider (13) and the sliding groove (14) slide in cooperation.

6. The battery pack EOL (End-of-Life) testing equipment according to claim 4, characterized in that: A second positioning motor (15) is fixedly installed on one side inside the fixed frame (12), and a second bidirectional lead screw (16) is fixedly connected to the transmission end of the second positioning motor (15).

7. The battery pack EOL (End-of-Life) testing equipment according to claim 6, characterized in that: The end of the second bidirectional lead screw (16) away from the second positioning motor (15) is connected to the fixed frame (12) through a bearing. The outer surface of the second bidirectional lead screw (16) is connected to the second moving block (17) through a thread. The L-shaped fixed plate (3) is fixedly connected to the second moving block (17).

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