Battery extrusion needling testing machine

Abstract

The utility model relates to the field of battery testing, and discloses a battery extrusion needling testing machine which comprises a testing cabinet body, a supporting plate used for placing and supporting a testing generating frame is arranged in the testing cabinet body, a fixing frame is arranged in the testing generating frame, and a fixing groove used for fixing a tested battery is formed in the fixing frame. A circular through hole is formed in the center of the fixing groove and the fixing frame; according to the test cabinet, the supporting plate for placing and supporting the test generation frame is arranged in the test cabinet body, the fixing frame for fixing the test battery is arranged in the test generation frame, the fixing grooves corresponding to common battery shapes are formed in the fixing frame, and the test battery is placed in the corresponding fixing grooves, so that a fixing effect is achieved; according to the utility model, the test battery is fixed during the battery extrusion and needling test, so that the battery is kept stable in the extrusion or needling process, and meanwhile, the direction, magnitude and duration time of extrusion or needling force can be accurately controlled, so that the test result has comparability and reproducibility.

Description

Technical Field

[0001] The present application relates to the field of battery testing, and in particular to a battery extrusion puncture testing machine. Background Art

[0002] The battery extrusion and puncture tester is a critical device used to test the safety of various types of batteries, including lithium-ion, nickel-metal hydride, and lead-acid batteries, under extreme conditions such as external extrusion or puncture. This device simulates the mechanical abuse that batteries may experience during actual use to assess their safety performance, such as whether they will explode or catch fire when squeezed or subjected to internal short circuits.

[0003] During the test, the existing battery extrusion needle penetration tester directly places the battery on a flat plate with a circular hole (the circular hole is to leave space for the needle penetration test to pass through). Since the battery may bounce or slide during the force application process, it is not conducive to precise control of the experimental process, such as uniform application and maintenance of force. At the same time, it may cause inaccurate needle penetration position, triggering strong reactions such as combustion, explosion and other dangerous events, which is not conducive to the smooth progress of the extrusion needle penetration test. To solve the above problems, a battery extrusion needle penetration tester is now proposed.

[0004] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the battery testing problem, the present application provides a battery extrusion puncture tester.

[0006] The battery extrusion needle penetration tester provided in this application adopts the following technical solutions:

[0007] A battery extrusion needle penetration tester includes a test cabinet, wherein the test cabinet is provided with a support plate for placing and supporting a test generator, wherein the test generator is provided with a fixing frame, wherein the fixing frame is provided with a fixing groove for fixing the test battery, and a circular through hole is opened in the center of the fixing groove and the fixing frame.

[0008] Preferably, an extrusion acupuncture component is provided in the test generating frame;

[0009] The extrusion needling assembly includes a cylinder, a fastening tube, an extrusion plate, and a steel needle. The fastening tube is threadedly connected to the output end of the cylinder. Both the extrusion plate and the steel needle can be connected to the output end of the cylinder. The steel needle can be made of stainless steel, tungsten steel or titanium alloy.

[0010] Preferably, buffer components are further provided on both sides of the test generating frame;

[0011] Slide grooves are provided on both sides of the test generating frame, and the buffer components are arranged in the slide grooves;

[0012] The buffer assembly includes a buffer and a slide. The buffer consists of a telescopic rod and a spring. The spring is sleeved on the telescopic rod. Both ends of the telescopic rod are fixedly connected to the test cabinet and the slide respectively. The test generating frame is slidably connected to the slide.

[0013] Preferably, an exhaust gas exhaust component is provided on the top of the test generating frame;

[0014] The exhaust gas emission assembly includes a filter, an exhaust scoop, and a fan. The filter is located on the test generating frame and communicates with the inner cavity of the test generating frame. The top of the filter is fixedly provided with an exhaust scoop, and the top of the exhaust scoop is connected to the fan, which is arranged on the top of the test cabinet.

[0015] The filter element is composed of glass fiber and activated carbon materials.

[0016] Preferably, a waste liquid drawer is slidably provided at the bottom of the interior of the test cabinet, and an adsorption plate is provided in the waste liquid drawer.

[0017] The adsorption plate is composed of high molecular adsorption resin and activated carbon.

[0018] Preferably, a cabinet door is rotatably provided on the test cabinet, and an observation window is provided on the cabinet door.

[0019] In summary, compared with the related art, the present invention has the following beneficial effects:

[0020] By arranging a support plate for placing a supporting test frame in the test cabinet, a fixing frame for fixing the test battery is provided in the test frame, and fixing grooves corresponding to common battery shapes are provided in the fixing frame. The test battery is placed in the corresponding fixing groove to play a fixing role. Compared with related technologies, the test battery is fixed during the battery extrusion or acupuncture test to ensure that the battery remains stable during the extrusion or acupuncture process. At the same time, the direction, magnitude and duration of the extrusion or acupuncture force can be accurately controlled, making the experimental results more comparable and reproducible. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0022] Figure 2 This is a schematic diagram of the open structure in the squeezed state of the embodiment of the application;

[0023] Figure 3 This is a schematic diagram of the exploded structure of the extrusion needling assembly in the extrusion state of the embodiment of the application;

[0024] Figure 4 This is a schematic structural diagram of the extrusion needling assembly in a needling state according to an embodiment of the application;

[0025] Figure 5 This is a schematic diagram of the waste liquid drawer structure of the application embodiment;

[0026] Figure 6 is a schematic diagram of the fixing frame structure of an embodiment of the application;

[0027] Figure 7 It is a schematic diagram of the open structure in the acupuncture state of an embodiment of the application.

[0028] Explanation of the accompanying symbols: 1. Test cabinet; 2. Cabinet door; 3. Support plate; 4. Test generator; 5. Slide; 6. Buffer; 7. Slide plate; 8. Cylinder; 9. Fastening cylinder; 10. Extrusion plate; 11. Fixed frame; 12. Waste liquid drawer; 13. Filter; 14. Exhaust hopper; 15. Fan; 16. Adsorption plate; 17. Steel needle; 18. Observation window. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-7 This application is described in further detail.

[0030] The present application embodiment discloses a battery extrusion needle penetration tester. Figure 1-7 A battery extrusion needle penetration tester includes a test cabinet 1, a support plate 3 for placing and supporting a test generator 4 is provided in the test cabinet 1, a fixing frame 11 is provided in the test generator 4, and a fixing groove is provided on the fixing frame 11 for fixing the test battery, and the interior of the fixing groove is stepped;

[0031] It should be noted that the fixing groove on the fixing frame 11 is stepped, which can match the existing common battery shapes and specifications. At the same time, the fixing frame 11 is fixed to the bottom of the test generating frame 4 by a limiting column. The bottom of the test generating frame 4 is provided with a limiting groove corresponding to the limiting column, and the limiting column fits in the limiting groove.

[0032] By adopting the above technical solution, the test battery is placed on the fixing frame 11, and the fixing groove on the fixing frame 11 plays a role in fixing the test battery.

[0033] Reference Figure 2-4 , an extrusion acupuncture component is provided in the test generating frame 4;

[0034] The extrusion acupuncture assembly includes a cylinder 8, a fastening cylinder 9, an extrusion plate 10, and a steel needle 17. The fastening cylinder 9 is threadedly connected to the output end of the cylinder 8. Both the extrusion plate 10 and the steel needle 17 can be connected to the output end of the cylinder 8.

[0035] It should be noted that the diameter of the tightening cylinder 9 is tightened from top to bottom, and the closer to the output end of the cylinder 8, the smaller the diameter. A placement groove is provided in the output end of the cylinder 8, and the fixed ends of the extrusion plate 10 and the steel needle 17 are fitted with clearance in the placement groove. By tightening the tightening cylinder 9 downward, the extrusion plate 10 or the steel needle 17 is fixed to the output end of the cylinder 8.

[0036] It should be further explained that when the extrusion test is performed, the output end of the cylinder 8 is fixed to the extrusion plate 10, and when the needle test is performed, the output end of the cylinder 8 is fixed to the steel needle 17;

[0037] It will be understood by those skilled in the art that the output end of the cylinder 8 is the telescopic rod thereon;

[0038] By adopting the above technical solution, the cylinder 8 is driven to move the extrusion plate 10 or the steel needle 17 downward to perform an extrusion or needle puncture test on the test battery.

[0039] Reference Figure 2 , buffer components are also provided on both sides of the test generating frame 4;

[0040] By adopting the above technical solution, since the battery may explode during the extrusion needle penetration test, the spring is mounted on the telescopic rod, and the two ends of the telescopic rod are fixedly connected to the test cabinet 1 and the slide 7 respectively, which can reduce the impact on the test frame 4 and the test cabinet 1 when an explosion occurs, thereby playing a buffering role.

[0041] Reference Figure 2 , an exhaust gas discharge assembly is provided on the top of the test generating frame 4;

[0042] By adopting the above technical solution, if an explosion or fire occurs during the test, the exhaust gas generated needs to be discharged to the outside of the test cabinet 1 in time, and the fan 15 is driven to suck out the exhaust gas generated in the test generating frame 4. The exhaust gas is filtered through a combination of glass fiber and activated carbon to filter out harmful substances in the exhaust gas and then discharged.

[0043] Reference Figure 2 and 5 A waste liquid drawer 12 is slidably provided at the bottom of the interior of the test cabinet 1, and an adsorption plate 16 is provided in the waste liquid drawer 12;

[0044] It should be noted that a leakage port is provided at the bottom of the test generating frame 4, and the side of the leakage port is curved to facilitate the automatic flow of the electrolyte into the waste liquid drawer 12;

[0045] By adopting the above technical solution, during the test, the rupture of the battery will cause the electrolyte to flow out, and the electrolyte will flow into the waste liquid drawer 12 through the leakage port. Under the adsorption action of the polymer adsorption resin and activated carbon, it is convenient to uniformly treat the electrolyte. At the same time, the activated carbon can also adsorb harmful substances in the exhaust gas that has not been completely sucked out by the fan 15.

[0046] Reference Figure 1-2 The test cabinet 1 is rotatably provided with a cabinet door 2, and the cabinet door 2 is provided with an observation window 18;

[0047] It should be noted that the cabinet door 2 is hinged to the test cabinet 1;

[0048] By adopting the above technical solution, the test situation in the test cabinet 1 can be observed in real time through the observation window 18 while the test is in progress.

[0049] The implementation principle of the battery extrusion and puncture tester of the embodiment of the present application is as follows: when in use, the cabinet door 2 is opened, and the test battery is placed in the fixed groove on the fixing frame 11 to play a fixing role, and the cabinet door 2 is closed and locked. Since the extrusion and puncture tests are generally not carried out at the same time, the extrusion test is carried out first here, and the extrusion plate 10 is first fixed to the output end of the cylinder 8, and the cylinder 8 is driven to move the extrusion plate 10 to press down and perform the extrusion test on the test battery. Then, the extrusion plate 10 is replaced with a steel needle 17, and the cylinder 8 is also driven to move the steel needle 17 to press down and perform the puncture test on the test battery. Perform a puncture test and record the relevant data and test results. If an explosion or fire occurs during the test, drive the fan 15 to filter and discharge the exhaust gas generated in the test generating rack 4. The electrolyte flowing out due to battery damage will flow into the waste liquid drawer 12. Under the adsorption action of the polymer adsorption resin and activated carbon, it is convenient to uniformly treat the electrolyte. At the same time, the activated carbon can also adsorb the harmful substances in the exhaust gas that are not completely absorbed by the fan 15. After the test is completed, open the cabinet door 2 again to clean the test generating rack 4 and the waste liquid drawer 12.

[0050] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0051] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0052] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A battery extrusion needle penetration tester, comprising a test cabinet (1), characterized in that: A support plate (3) for placing and supporting a test generator (4) is provided in the test cabinet (1); a fixing frame (11) is provided in the test generator (4); a fixing groove for fixing a test battery is provided on the fixing frame (11); and the interior of the fixing groove is stepped.

2. A battery extrusion needle penetration tester according to claim 1, characterized in that: The test generating frame (4) is provided with an extrusion acupuncture component; The extrusion needling assembly comprises a cylinder (8), a fastening cylinder (9), an extrusion plate (10), and a steel needle (17); the fastening cylinder (9) is threadedly connected to the output end of the cylinder (8); and both the extrusion plate (10) and the steel needle (17) can be connected to the output end of the cylinder (8).

3. The battery extrusion needle penetration tester according to claim 1, characterized in that: Buffer components are also provided on both sides of the test generating frame (4).

4. The battery extrusion needle penetration tester according to claim 1, characterized in that: An exhaust gas discharge assembly is provided on the top of the test generating frame (4).

5. The battery extrusion needle penetration tester according to claim 1, characterized in that: A waste liquid drawer (12) is slidably provided at the bottom of the interior of the test cabinet (1), and an adsorption plate (16) is provided in the waste liquid drawer (12).

6. The battery extrusion needle penetration tester according to claim 1, characterized in that: A cabinet door (2) is rotatably provided on the test cabinet body (1), and an observation window (18) is provided on the cabinet door (2).

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