Lithium battery plastic casing strength testing device

Abstract

This utility model provides a lithium battery plastic shell strength testing device. The lithium battery plastic shell strength testing device includes: a device body; a rotating block is disposed on the output end of a first driving component; a shaft is disposed on the rotating block; a fixed rod is fixedly mounted on the device body; a vibrating crossbar that can rotate around the shaft is disposed on the fixed rod; a first connecting member is disposed on the vibrating crossbar; a second connecting member is disposed on the vibrating crossbar; a vibrating rod that can move up and down is disposed on the second connecting member; a vibrating base plate for vibrating the device is disposed on the vibrating rod; a vibrating guide block for guiding the vibrating base plate is disposed on the vibrating base plate; and a vibrating guide groove is formed on the device body. The lithium battery plastic shell strength testing device provided by this utility model has the effect of improving the safety of lithium battery plastic shells in use.

Description

Technical Field

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

[0002] With the rapid development of industries such as new energy vehicles and portable electronic devices, the market demand for lithium batteries, as the main energy storage devices, has shown explosive growth. As an important component of lithium batteries, the lithium battery casing not only protects the battery cells and prevents external objects from damaging them, but also has a crucial impact on the overall structural stability and safety of the battery. Therefore, accurate testing of the strength of the lithium battery casing has become a key link in ensuring the quality and safety of lithium batteries.

[0003] Traditional lithium battery casing strength testing devices focus on pressure resistance testing, which cannot simulate the vibration conditions in actual use. However, in the actual transportation of lithium batteries, vibration and bumps are unavoidable. During vibration, micro-cracks in the casing may expand or connectors may loosen, thereby increasing the risk of safety accidents such as short circuits and electrolyte leakage.

[0004] Therefore, it is necessary to provide a lithium battery plastic casing strength testing device to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a lithium battery plastic shell strength testing device, which solves the problem that the lack of vibration testing function in traditional devices leads to a significant decrease in the safety of the device.

[0006] To solve the above-mentioned technical problems, the lithium battery plastic shell strength testing device provided by this utility model includes: a device body, the device body including a clamping module, a pressing module, and a vibration module, the vibration module including a first driving member installed on the device body, a rotating block provided on the output end of the first driving member, a shaft provided on the rotating block, a fixed rod fixedly installed on the device body, a vibrating crossbar that can rotate around the shaft provided on the fixed rod, a first connecting member for connection provided on the vibrating crossbar, a second connecting member for connection provided on the vibrating crossbar, a vibrating rod that can move up and down provided on the second connecting member, a vibrating base plate that can perform vibration testing on the vibrating rod, a vibrating guide block that can guide the vibrating base plate provided on the vibrating base plate, and a vibration guide groove provided on the device body.

[0007] Preferably, the clamping module includes a clamping guide groove formed on the vibration base plate, a clamping guide block that can slide inside the clamping guide groove is provided on the clamping guide groove, a fixing fixture that can clamp the test piece is installed on the clamping guide block, and a rotating bearing is provided on the fixing fixture.

[0008] Preferably, the fixing clamp is rotatably connected to a threaded rod via a rotating bearing, and a transverse guide rod is installed on the fixing clamp for guidance. A fixing plate is fixedly connected to the vibration base plate, and the transverse guide rod is slidably connected to the fixing plate.

[0009] Preferably, the pressing module includes a second driving component fixedly installed on the main body of the device, and the output end of the second driving component is provided with a pressing plate that can test the test piece.

[0010] Preferably, the clamping guide block is slidably connected to the clamping guide groove, and the fixing plate is provided with a groove that can cooperate with the threaded rod.

[0011] Preferably, a support module is installed on the main body of the device. The support module includes a device support rod fixedly installed on the main body of the device, and the bottom of the device support rod is provided with an anti-slip component for preventing slippage.

[0012] Preferably, the main body of the device is equipped with control elements for controlling the operation and testing of the device.

[0013] Compared with related technologies, the lithium battery plastic shell strength testing device provided by this utility model has the following advantages:

[0014] Beneficial effects:

[0015] This utility model provides a lithium battery plastic shell strength testing device. When using this device, the first driving component drives the rotating block to rotate, which in turn drives the first connecting component to move. Simultaneously, the first connecting component drives the vibrating crossbar to move. The vibrating crossbar, through the second connecting component, drives the vibrating rod to reciprocate up and down, thereby driving the vibrating base plate to reciprocate up and down. This achieves the purpose of performing up and down vibration testing on the test piece. This device adds vibration functionality to the test piece. Traditional static strength testing cannot detect material fatigue, while adding vibration testing can identify structural weaknesses caused by high-frequency or low-frequency vibrations. Vibration testing can effectively test the boundary points that lead to the expansion of microcracks in the plastic shell or loosening of the connecting components, thereby preventing risks such as battery short circuits and leakage, and thus improving the safety of lithium battery plastic shells. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the lithium battery plastic shell strength testing device provided by this utility model;

[0017] Figure 2 for Figure 1 The diagram shown is a top view of the main body of the device.

[0018] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the main body of the device.

[0019] Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below;

[0020] Figure 5 for Figure 3 The enlarged schematic diagram of section B is shown below;

[0021] Figure 6 for Figure 3 The enlarged schematic diagram of section C is shown.

[0022] The diagram is labeled as follows: 1. Main body of the device; 2. Vibration module; 201. Vibration base plate; 202. First driving component; 203. Rotating block; 204. First connecting component; 205. Shaft; 206. Vibration crossbar; 207. Second connecting component; 208. Vibration rod; 209. Fixing rod; 210. Vibration guide groove; 211. Vibration guide block; 3. Support module; 301. Anti-slip component; 302. Device support rod; 4. Clamping module; 401. Horizontal guide rod; 402. Fixing clamp; 403. Clamping guide groove; 404. Threaded rod; 405. Bearing component; 406. Fixing plate; 407. Clamping guide block; 5. Pressing module; 501. Second driving component; 502. Pressing plate; 6. Control element. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic diagram of a preferred embodiment of the lithium battery plastic shell strength testing device provided by this utility model; Figure 2 for Figure 1 The diagram shown is a top view of the main body of the device. Figure 3 for Figure 1 The diagram shows a cross-sectional view of the main body of the device. Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 5 for Figure 3 The enlarged schematic diagram of section B is shown below; Figure 6 for Figure 3 The enlarged schematic diagram of section C is shown. The lithium battery plastic casing strength testing device includes: a device body 1, which includes a clamping module 4, a pressing module 5, and a vibration module 2. The vibration module 2 includes a first driving component 202 mounted on the device body 1. A rotating block 203 is provided on the output end of the first driving component 202, and a shaft 205 is provided on the rotating block 203. A fixing rod 209 is fixedly mounted on the device body 1, and a vibration mechanism that can rotate around the shaft 205 is provided on the fixing rod 209. A crossbar 206 is provided, on which a first connecting member 204 for connection is provided, and a second connecting member 207 for connection is provided on the crossbar 206. A vibrating rod 208 capable of vertical movement is provided on the second connecting member 207, and a vibrating base plate 201 for vibration testing of the device is provided on the vibrating rod 208. A vibration guide block 211 for guiding the vibrating base plate 201 is provided on the vibrating base plate 201, and a vibration guide groove 210 is provided on the main body 1 of the device.

[0025] The first driving component 202 can be a motor, pneumatic motor, hydraulic motor or other driving device that can drive the rotating block 203 to rotate. The aforementioned vibration rod 208 can drive the vibration base plate 201 to vibrate up and down, thereby achieving the purpose of vibration testing on the test piece.

[0026] The clamping module 4 includes a clamping guide groove 403 formed on the vibration base plate 201. A clamping guide block 407, which can slide inside the clamping guide groove 403, is provided on the clamping guide groove 403. A fixing fixture 402, which can clamp the test piece, is installed on the clamping guide block 407. A rotary bearing 405 is provided on the fixing fixture 402.

[0027] The fixed clamp 402 can clamp test pieces of different sizes, thereby ensuring the stability of the test pieces during testing. The clamping guide block 407 can guide the fixed clamp 402 when it moves.

[0028] The fixing clamp 402 is rotatably connected to a threaded rod 404 via a rotating bearing 405. A transverse guide rod 401 for guiding is installed on the fixing clamp 402. A fixing plate 406 is fixedly connected to the vibration base plate 201. The transverse guide rod 401 is slidably connected to the fixing plate 406.

[0029] When testing a test piece, the threaded rod 404 can be used to first place the test piece between two fixed clamps 402, and then rotate the threaded rod 404 to clamp the fixed clamps 402.

[0030] The pressing module 5 includes a second driving component 501 fixedly installed on the main body 1 of the device, and a pressing plate 502 for testing the test piece is provided on the output end of the second driving component 501.

[0031] The second driving component 501 can be an electric telescopic rod, hydraulic telescopic rod, pneumatic telescopic rod, or other driving device that can drive the lower pressure plate 502 to extend and retract, thereby enabling the test piece to be subjected to a compressive strength test from above.

[0032] The clamping guide block 407 is slidably connected to the clamping guide groove 403. The fixing plate 406 has a groove that can cooperate with the threaded rod 404. The fixing plate 406 can ensure the movement of the threaded rod 404 in the horizontal direction.

[0033] A support module 3 is installed on the main body 1 of the device. The support module 3 includes a device support rod 302 fixedly installed on the main body 1 of the device. The bottom of the device support rod 302 is provided with an anti-slip component 301 for anti-slip purposes.

[0034] The anti-slip component 301 can be a rubber anti-slip mat, a wooden anti-slip mat, a ceramic anti-slip mat, or other anti-slip components that can play an anti-slip role, thereby ensuring the stability of the device during operation.

[0035] The main body 1 of the device is equipped with a control element 6 for controlling the operation and testing of the device. The control element 6 can control the operation of the first drive element 202 and the second drive element 501 as well as record and compare test data.

[0036] The working principle of the lithium battery plastic shell strength testing device provided by this utility model is as follows:

[0037] When using this device, a pressure resistance test can be performed first. Then, the control element 6 will control the first drive component 202 to start. At this time, the first drive component 202 will drive the rotating block 203 to rotate. As the rotating block 203 moves, it will drive the shaft 205 above to follow. At this time, the rotating block 203 will drive the first connecting component 204 to move through the shaft 205. At the same time, the first connecting component 204 will drive the vibrating crossbar 206 to move through the shaft 205. At this time, one end of the vibrating crossbar 206 will cooperate with the shaft 205 on the fixed rod 209 to move. This enables the vibrating crossbar 206 to drive the vibrating rod 208 to move up and down through the second connecting component 207. At this time, the vibrating rod 208 will drive the vibrating base plate 201 to move up and down, thereby achieving the purpose of performing up and down vibration test on the test piece.

[0038] Compared with related technologies, the lithium battery plastic shell strength testing device provided by this utility model has the following advantages:

[0039] Beneficial effects:

[0040] When this device is used, the first driving component 202 drives the rotating block 203 to rotate, the rotating block 203 drives the first connecting component 204 to move, and the first connecting component 204 drives the vibrating crossbar 206 to move. At this time, the vibrating crossbar 206 drives the vibrating rod 208 to move up and down through the second connecting component 207, thereby driving the vibrating base plate 201 to move up and down, thus achieving the purpose of performing up and down vibration testing on the test piece. This device adds vibration function to the test piece. Traditional static strength testing cannot detect material fatigue, but adding vibration testing can identify structural weaknesses caused by high-frequency or low-frequency vibration. Vibration testing can effectively test the boundary points that lead to the expansion of microcracks in the plastic shell or loosening of the connecting components, thereby preventing the occurrence of risks such as battery short circuits and leakage, thus achieving the effect of improving the safety of lithium battery plastic shells.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for detecting the strength of a plastic case of a lithium battery, characterized by comprising: include: The device body includes a clamping module, a pressing module, and a vibration module. The vibration module includes a first driving component mounted on the device body. A rotating block is provided on the output end of the first driving component. A shaft is provided on the rotating block. A fixed rod is fixedly mounted on the device body. A vibration crossbar that can rotate around the shaft is provided on the fixed rod. A first connecting member for connection is provided on the vibration crossbar. A second connecting member for connection is provided on the vibration crossbar. A vibration rod that can move up and down is provided on the second connecting member. A vibration base plate for vibration testing of the device is provided on the vibration base plate. A vibration guide block for guiding the vibration base plate is provided on the vibration base plate. A vibration guide groove is formed on the device body.

2. The lithium battery plastic case strength detection device according to claim 1, characterized in that, The clamping module includes a clamping guide groove formed on the vibration base plate, a clamping guide block that can slide inside the clamping guide groove, a fixing fixture that can clamp the test piece is installed on the clamping guide block, and a rotating bearing is provided on the fixing fixture.

3. The lithium battery plastic case strength detection device according to claim 2, characterized in that, The fixed clamp is rotatably connected to a threaded rod via a rotating bearing. A transverse guide rod is installed on the fixed clamp for guidance. A fixed plate is fixedly connected to the vibration base plate. The transverse guide rod is slidably connected to the fixed plate.

4. The lithium battery plastic case strength detection device according to claim 1, characterized in that, The pressure module includes a second driving component fixedly installed on the main body of the device, and a pressure plate that can test the test piece is provided on the output end of the second driving component.

5. The lithium battery plastic case strength detection device according to claim 3, characterized in that, The clamping guide block is slidably connected to the clamping guide groove, and the fixing plate has a groove that can cooperate with the threaded rod.

6. The lithium battery plastic case strength detection device according to claim 1, characterized in that, A support module is installed on the main body of the device. The support module includes a device support rod that is fixedly installed on the main body of the device. The bottom of the device support rod is provided with an anti-slip component for preventing slippage.

7. The lithium battery plastic case strength detection device according to claim 1, characterized in that, The main body of the device is equipped with control elements for controlling the operation and testing of the device.

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