Lithium battery impact test device

Abstract

The utility model provides a lithium battery impact test device which comprises a box body, a box door hinged to the front side of the box body, a transparent observation window arranged on the box door, a handle arranged on the front side of the box door, a placing plate arranged at the lower end of the box body and used for placing a lithium battery, and an impact assembly arranged at the upper end of the box body and used for impacting the lithium battery. The bottom of the box body is provided with a fixing assembly used for fixing the lithium battery, the lithium battery impact test device can not only perform impact test on the lithium battery through the impact block, but also ensure that various batteries are stably fixed at the test position through the fixing assembly by adjusting the longitudinal and transverse spacing of the clamping frame, so that the lithium battery impact test device is simple in structure and convenient to use. And diversified test requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery testing, and particularly relates to a lithium battery impact testing device. Background Art

[0002] A lithium battery impact test device is a device specifically used to evaluate the safety performance of lithium batteries when subjected to external impact. This type of device detects the stability of lithium batteries under extreme conditions by simulating impact scenarios that may be encountered in the real world to ensure that they will not cause dangerous situations such as fire and explosion after encountering unforeseen impacts. In the prior art, a pallet is usually provided at the bottom of the test box, a battery body is provided on the top of the pallet, a telescopic push rod is provided at the upper end of the test box, and an impact block is provided at the lower end of the telescopic push rod to perform an impact test on the battery. However, in this method, there is no fixing component on the pallet for fixing the battery, and an unfixed battery is easy to fly out or move violently in the test box when it is impacted, which may hit other parts of the test device, causing damage to the equipment and even posing a risk of injury to the operator.

[0003] For example, the utility model with announcement number CN217878266U discloses a lithium battery impact test device. In the technical solution of this patent, a test box is arranged at the upper end of the base, a pallet is arranged at the bottom of the inner cavity of the test box, a battery body is arranged on the top of the pallet, and a telescopic push rod is arranged at the upper end of the box body. The output end of the telescopic push rod is connected to an impact block to perform an impact test on the battery. However, in this method, the battery is placed on the pallet and is not limited and fixed. If the battery is not properly fixed, it may slide or roll during impact, resulting in uncertainty in the impact position and angle, which will seriously affect the accuracy and repeatability of the test results. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a lithium battery impact test device, which can not only perform impact tests on lithium batteries through impact blocks, but also adjust the longitudinal and lateral spacing of the clamping frame through fixed components to ensure that various types of batteries are firmly fixed in the test position to meet diverse testing needs.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a lithium battery impact testing device, including a box body, a box door hinged on the front side of the box body, a transparent observation window is arranged on the box door, a handle is arranged on the front side of the box door, a placement plate for placing lithium batteries is arranged at the lower end of the box body, an impact assembly for impacting the lithium battery is arranged at the upper end of the box body, and a fixing assembly for fixing the lithium battery is arranged at the bottom of the box body.

[0006] As a further improvement of the present invention, the fixing assembly includes a groove arranged on the rear side of the bottom of the box body, a bidirectional motor 1 is arranged in the middle of the groove, a threaded rod 1 is arranged between the output end of the bidirectional motor 1 and the adjacent side walls of the groove, a slider 1 is threadedly connected to the threaded rod 1, a sliding column is arranged on the front side of the bottom of the box body, two sliders 2 are slidably arranged on the upper end of the sliding column, a slide plate is arranged between the slider 2 and the adjacent slider 1, and a clamping member for longitudinally clamping the lithium battery is arranged at the lower end of the slide plate.

[0007] As a further improvement of the present invention, the clamping member includes a slide groove arranged on the lower side wall of the slide, a bidirectional motor 2 is arranged in the middle of the slide groove, a threaded rod 2 is arranged between the output end of the bidirectional motor 2 and the adjacent slide groove side walls, a slider 3 is threadedly connected to the threaded rod 2, and the lower end of the slider 3 is connected to the clamping frame.

[0008] As a further improvement of the utility model, clamping pads are provided on the inner side walls of the clamping frame.

[0009] As a further improvement of the utility model, the impact assembly includes a telescopic push rod arranged at the upper end of the box body, the output end of the telescopic push rod extends into the interior of the box body and is connected to an impact block, a limit rod is slidably arranged on the upper side wall of the box body, the lower side of the limit rod is connected to the upper side wall of the impact block, and a limit plate is arranged at the upper end.

[0010] As a further improvement of the utility model, a support base is arranged at the lower end of the box body, and anti-slip stripes are arranged on the bottom outer wall of the support base.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] Firstly, by setting up a fixing component and starting a bidirectional motor 1, threaded rod 1 can be rotated, and the rotation of threaded rod 1 can cause slider 1 to move along the groove, so that the slide plates are moved closer to or away from each other with the assistance of slider 2, thereby adjusting the lateral distance of the clamping frame; starting a bidirectional motor 2 can cause threaded rod 2 to rotate, and threaded rod 2 can cause slider 3 to move, so that slider 3 drives the clamping frames to move closer to or away from each other, thereby adjusting the longitudinal distance of the clamping frame; by adjusting the lateral and longitudinal spacings of the clamping parts, the fixing component can be adapted to the testing of lithium batteries of different sizes and models, because lithium batteries of different specifications differ in size, by adjusting the spacing of the clamping parts, it can be ensured that various types of batteries are firmly fixed in the test position to meet diverse testing needs.

[0013] Secondly, clamping pads are provided on the inner side walls of the clamping frame, which can effectively buffer the pressure on the surface of the lithium battery during the clamping process, avoid scratches or damage caused by direct metal contact with the battery shell, and protect the battery from mechanical damage, thereby not affecting the accuracy of the test results and not causing safety hazards.

[0014] Thirdly, a limit rod is slidably arranged on the upper side wall of the box body, the lower side of the limit rod is connected to the upper side wall of the impact block, and a limit plate is arranged on the upper end. By setting the limit rod, the impact block can be effectively prevented from accidentally falling excessively, thereby avoiding damage to the test equipment.

[0015] Fourthly, a transparent observation window is provided on the box door. When conducting a battery impact test, the internal test conditions can be directly observed through the observation window without opening the door for inspection, thus avoiding potential safety risks caused by opening the door during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping member of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the impact component of the utility model.

[0021] In the figure: 101, box body; 102, box door; 103, transparent observation window; 104, placement plate; 105, support base; 201, two-way motor 1; 202, threaded rod 1; 203, slider 1; 204, slide column; 205, slider 2; 206, slide plate; 207, two-way motor 2; 208, threaded rod 2; 209, slider 3; 210, clamping frame; 211, clamping pad; 301, telescopic push rod; 302, impact block; 303, limit rod; 304, limit plate. DETAILED DESCRIPTION

[0022] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0023] like Figure 1 , 2 As shown in Figure 3, a lithium battery impact test device includes a box body 101, a box door 102 is hinged on the front side of the box body 101, and a transparent observation window 103 is arranged on the box door 102. When performing a battery impact test, the internal test situation can be directly observed through the observation window without opening the door for inspection, thereby avoiding potential safety risks caused by opening the door during the test. A handle is arranged on the front side of the box door 102, a placement plate 104 for placing lithium batteries is arranged at the lower end of the box body 101, an impact assembly for impacting the lithium battery is arranged at the upper end of the box body 101, and a fixing assembly for fixing the lithium battery is arranged at the bottom of the box body 101.

[0024] like Figure 1 , 2 As shown, the fixing assembly includes a groove arranged at the rear side of the bottom of the box body 101, a bidirectional motor 201 is arranged in the middle of the groove, a threaded rod 202 is arranged between the output end of the bidirectional motor 201 and the adjacent side walls of the groove, and a slider 203 is threadedly connected to the threaded rod 202, and a sliding column 204 is arranged on the front side of the bottom of the box body 101, and two sliders 205 are slidably arranged on the upper end of the sliding column 204, and a slide plate 206 is arranged between the slider 205 and the adjacent slider 203, and a clamping piece for longitudinally clamping the lithium battery is arranged at the lower end of the slide plate 206. Starting the bidirectional motor 201 can rotate the threaded rod 202, and the rotation of the threaded rod 202 causes the slider 203 to move along the groove, so that the sliders 206 are moved closer to or away from each other with the assistance of the slider 205, thereby adjusting the lateral distance of the clamping frame 210.

[0025] like Figure 1 , 2 As shown in Figure 3, the clamping member includes a slide groove arranged on the lower side wall of the slide plate 206, and a two-way motor 207 is arranged in the middle of the slide groove. The output end of the two-way motor 207 is respectively provided with a threaded rod 208 between the adjacent slide groove side walls, and the threaded rod 208 is threadedly connected with a slider 3 209, and the lower end of the slider 3 209 is connected with a clamping frame 210. Starting the two-way motor 207 can rotate the threaded rod 208, and the threaded rod 208 can move the slider 3 209, so that the slider 3 209 drives the clamping frame 210 to move closer to or away from each other, and then the longitudinal distance of the clamping frame 210 is adjusted. By adjusting the lateral spacing and longitudinal spacing of the clamping member, the fixing assembly can adapt to the testing of lithium batteries of different sizes and models. Because lithium batteries of different specifications are different in size, by adjusting the spacing of the clamping member, it can be ensured that various types of batteries are firmly fixed in the test position to meet diverse testing needs.

[0026] like Figure 1 , 3 As shown, clamping pads 211 are provided on the inner side walls of the clamping frame 210. The clamping pads 211 can effectively buffer the pressure on the surface of the lithium battery during the clamping process, avoid scratches or damage caused by direct metal contact with the battery shell, and protect the battery from mechanical damage, thereby not affecting the accuracy of the test results and not causing safety hazards.

[0027] like Figure 1 , 4 As shown, the impact assembly includes a telescopic push rod 301 arranged at the upper end of the box body 101, and the output end of the telescopic push rod 301 extends into the interior of the box body 101 and is connected to a impact block 302.

[0028] like Figure 1 As shown, a support base 105 is provided at the lower end of the box 101, and anti-slip stripes are provided on the bottom outer wall of the support base 105. The support base 105 plays a good supporting role on the box 101 and greatly improves the stability of the box 101.

[0029] Working principle: When using this device, first place the lithium battery to be tested on the placement plate 104, and then start the bidirectional motor 1 201 to rotate the threaded rod 1 202. The rotation of the threaded rod 1 202 causes the slider 1 203 to move along the groove, so that the slide plates 206 are moved closer to or farther away from each other with the assistance of the slider 2 205, and then the lateral distance of the clamping frame 210 is adjusted. Starting the bidirectional motor 2 207 can rotate the threaded rod 208, and the threaded rod 208 can move the slider 3 209, so that the slider 3 209 drives the clamping frame 210 to move closer to or farther away from each other, and then the longitudinal distance of the clamping frame 210 is adjusted and clamped according to the specifications of the lithium battery. By adjusting the lateral and longitudinal spacings of the clamping parts, the fixing assembly can adapt to the testing of lithium batteries of different sizes and models. Then start the telescopic push rod 301 to move the impact block 302 downward to perform an impact test on the lithium battery.

[0030] According to another embodiment of the present invention, Figure 1 , 4 As shown, a limit rod 303 is slidably provided on the upper side wall of the box body 101, the lower side of the limit rod 303 is connected to the upper side wall of the impact block 302, and a limit plate 304 is provided on the upper end. By providing the limit rod 303, the impact block 302 can be effectively prevented from accidentally falling excessively, thereby avoiding damage to the test equipment.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A lithium battery impact test device, comprising a box (101), characterized in that: The front side of the box body (101) is hinged with a box door (102), a transparent observation window (103) is provided on the box door (102), a handle is provided on the front side of the box door (102), a placement plate (104) for placing lithium batteries is provided at the lower end of the box body (101), an impact assembly for impacting the lithium batteries is provided at the upper end of the box body (101), a fixing assembly for fixing the lithium batteries is provided at the bottom of the box body (101), the fixing assembly comprises a groove provided at the rear side of the bottom of the box body (101), a bidirectional motor (201) is provided in the middle of the groove, a threaded rod (202) is provided between the output end of the bidirectional motor (201) and the adjacent side wall of the groove, and a slider (202) is threadedly connected to each of the threaded rods (202). 03), a slide column (204) is arranged at the front side of the bottom of the box body (101), two sliders (205) are slidably arranged at the upper end of the slide column (204), a slide plate (206) is arranged between each of the sliders (205) and the adjacent sliders (203), a clamping member for longitudinally clamping the lithium battery is arranged at the lower end of the slide plate (206), the clamping member includes a slide groove arranged on the lower side wall of the slide plate (206), a bidirectional motor (207) is arranged in the middle of the slide groove, a threaded rod (208) is arranged between the output end of the bidirectional motor (207) and the adjacent side wall of the slide groove, a slider (209) is threadedly connected to the threaded rod (208), and a clamping frame (210) is connected to the lower end of the slider (209).

2. The lithium battery impact test device according to claim 1, characterized in that: A clamping pad (211) is provided on the inner side wall of the clamping frame (210).

3. The lithium battery impact test device according to claim 1, characterized in that: The impact assembly comprises a telescopic push rod (301) arranged at the upper end of the box body (101), and the output end of the telescopic push rod (301) extends into the interior of the box body (101) and is connected to a impact block (302).

4. The lithium battery impact testing device according to claim 1, characterized in that: A limiting rod (303) is slidably arranged on the upper side wall of the box body (101); the lower side of the limiting rod (303) is connected to the upper side wall of the impact block (302), and a limiting plate (304) is arranged on the upper end.

5. The lithium battery impact testing device according to claim 1, characterized in that: A support base (105) is provided at the lower end of the box body (101), and anti-slip stripes are provided on the bottom outer wall of the support base (105).

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