Battery pack crash test machine

Abstract

The utility model relates to battery pack anti -collision testing machine device relates to battery test technical field, including base, the top middle part of base is provided with the impact platform, the top one side of base is provided with data processing module, data processing module and impact platform top are commonly provided with the impact subassembly, can be through medium fixed ring to the hard stick and carry out the clamping, and positioning block can slide adjustable along data acquisition platform, the flexible traction of combination elastic cord makes hard stick can closely adhere to the surface of different shape battery pack, ensures that hard stick always aims at battery pack target impact area, and the external force that weight impact produces can promote medium fixed ring to automatically release the clamping of hard stick, does not interfere with the effect of impact force to battery pack, elastic cord can timely tow medium fixed ring and withdraw, avoid medium fixed ring and take place structural deformation or damage because of the continuous bearing impact impact force, effectively prolong the service life of medium fixed ring, reduce equipment maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically to a battery pack anti-collision testing machine. Background Technology

[0002] As new energy electric vehicle technology matures and its popularity increases, the battery pack, as the power source of new energy electric vehicles, is generally installed in the lower part of the vehicle body. During vehicle operation, it may be subject to scrapes, collisions, bottoming out, etc. Moreover, the bottom of the battery pack usually accounts for more than 50% of the total area of ​​the vehicle's bottom. Its safety performance is directly related to the safety of the vehicle, so it needs to undergo rigorous crash testing.

[0003] One of the battery pack impact tests involves placing a rigid rod with a diameter of 15.8 mm horizontally on top of the battery, and then dropping a 20-pound weight from a height of 610 mm onto the rod. After such an impact, the battery should be able to withstand the test without any safety hazards such as explosion, fire, or leakage.

[0004] However, in existing technologies, workers need to maintain a safe distance from the machine during the testing process. The rigid rod placed on the battery pack can easily roll due to the different shapes of the battery pack, making it difficult to impact specific locations on the battery pack. This results in the impact point deviating from the target area, poor repeatability of test data, and reduced testing efficiency and stability of the battery pack. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a battery pack anti-collision testing machine.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: The device includes a base, an impact platform is provided at the top center of the base, a data processing module is provided on one side of the top of the base, and an impact component is provided together with the top of the data processing module and the impact platform. The impact platform includes a data acquisition platform whose bottom end is fixedly connected to the top of the base. Positioning blocks are slidably connected to both sides of the data acquisition platform. Elastic ropes are fixedly connected to the outer surface of the positioning blocks. A medium fixing ring is fixedly connected to the end of the elastic rope away from the positioning block.

[0007] The beneficial effects of this utility model are: it can clamp the rigid rod through the medium fixing ring, while the positioning block can slide and adjust along the data acquisition platform. Combined with the flexible traction of the elastic rope, the rigid rod can be closely attached to the surface of battery packs of different shapes, ensuring that the rigid rod is always aligned with the target impact area of ​​the battery pack. Furthermore, the external force generated by the impact of the heavy object can cause the medium fixing ring to automatically release the clamp on the rigid rod without interfering with the impact force on the battery pack. The elastic rope can promptly pull the medium fixing ring back, preventing the medium fixing ring from structurally deforming or being damaged due to continuous impact force, effectively extending the service life of the medium fixing ring and reducing equipment maintenance costs.

[0008] Furthermore, the medium fixing ring includes a connecting block with one end fixedly connected to the elastic rope, and a rotating bracket is fixedly connected to the end of the connecting block away from the elastic rope. The elastic rope can provide flexible traction force, which is transmitted to the clamped rigid rod through the connecting block.

[0009] Furthermore, a fixed arc plate is rotatably connected to the outer side of the outer surface of the rotating bracket. An arc-shaped engaging groove is provided at the end of the fixed arc plate away from the rotating bracket. The position of the engaging groove can precisely align with the end of the fixed arc plate, laying a structural foundation for the stable clamping of the rigid rod.

[0010] Furthermore, a second fixed arc plate is rotatably connected to the inner side of the outer surface of the rotating bracket. The second fixed arc plate can close with the first fixed arc plate to form a ring, and finally close to form a complete ring structure, which firmly clamps the rigid rod inside the ring, preventing the rigid rod from shifting or rolling before testing.

[0011] Furthermore, magnets are embedded in both the inner side of the locking groove and the end of the fixed arc plate away from the rotating bracket. The two magnets have opposite magnetic properties on opposite sides, and the magnetic attraction can counteract the traction of the elastic rope and automatically release the clamping of the rigid rod under the action of external force. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present utility model; Figure 2 This is a schematic diagram of the impact platform structure of this utility model; Figure 3 This is an exploded view of the media fixing ring of this utility model; Figure 4 This is a cross-sectional view of the medium fixing ring structure of this utility model.

[0013] The attached diagram lists the components represented by each number as follows: 1. Impact assembly; 2. Data processing module; 3. Impact stage; 31. Medium fixing ring; 311. Magnet; 312. Engaging groove; 313. Fixing arc plate one; 314. Connecting block; 315. Rotating bracket; 316. Fixing arc plate two; 32. Elastic rope; 33. Positioning block; 34. Data acquisition station; 4. Base. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0016] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0017] In the description of this application, spatial relation terms such as “below,” “under,” “below,” “below,” “above,” “over,” etc., are used herein to describe the relationship between an element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as “below,” “under,” or “below” will be oriented “over” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0018] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0019] Example 1 Figure 1 This is a structural diagram of the battery pack anti-collision testing machine provided in an embodiment of the present utility model. Figure 1 The device includes a base 4, an impact platform 3 is provided at the top center of the base 4, a data processing module 2 is provided on one side of the top of the base 4, and an impact component 1 is provided together with the top of the data processing module 2 and the impact platform 3.

[0020] The impact platform 3 is used to place the battery pack for testing and complete the initial positioning of the battery pack. The base 4 contains a damper that can absorb the impact force to prevent the impact force from spreading. The impact assembly 1 can control the lifting and dropping of the heavy object to conduct impact tests on the battery pack. The data processing module 2 can organize and perform preliminary analysis on the collected data.

[0021] The impact component 1, data processing module 2, and base 4 are all existing technologies and will not be explained here.

[0022] Figure 2 This is a schematic diagram of the impact platform structure of this utility model. Figure 2 As shown, the impact platform 3 includes a data acquisition platform 34 whose bottom end is fixedly connected to the top end of the base 4. Positioning blocks 33 are slidably connected to both sides of the data acquisition platform 34. Elastic ropes 32 are fixedly connected to the outer surface of the positioning blocks 33. A medium fixing ring 31 is fixedly connected to the end of the elastic ropes 32 away from the positioning blocks 33.

[0023] After the battery pack is placed on the data acquisition platform 34, the positioning block 33 is adjusted to a position that matches the target impact area of ​​the battery pack by sliding the positioning block 33 along the data acquisition platform 34, according to the size of the battery pack and the target impact position. Then, the two medium fixing rings 31 are clamped at both ends of the rigid rod, and the rigid rod is placed on the surface of the battery pack. Under the clamping of the medium fixing rings 31 and the traction of the elastic rope 32, the rigid rod can be kept close to the surface of the battery pack. The data acquisition platform 34 synchronously collects data such as the force and displacement of the battery pack during the impact and transmits the data to the external data processing module.

[0024] The data acquisition station 34 has a series of built-in sensors that can collect and transmit data. This is existing technology and will not be explained here.

[0025] Example 2 Based on Embodiment 1, the present invention can be further improved as follows: Figure 3 This is an exploded view of the media fixing ring of this utility model. Figure 4 This is a cross-sectional view of the media fixing ring structure of this utility model. Figure 3 and Figure 4 As shown, the medium fixing ring 31 includes a connecting block 314 fixedly connected to the elastic rope 32 at one end, a rotating bracket 315 fixedly connected to the end of the connecting block 314 away from the elastic rope 32, a fixing arc plate 313 rotatably connected to the outer side of the outer surface of the rotating bracket 315, an arc-shaped locking groove 312 opened at the end of the fixing arc plate 313 away from the rotating bracket 315, and a fixing arc plate 316 rotatably connected to the inner side of the outer surface of the rotating bracket 315.

[0026] Rotate the first fixed arc plate 313 and the second fixed arc plate 316 toward the rigid rod, so that the two gradually surround the outside of the rigid rod. At the same time, during the closing process, the position of the locking groove 312 can accurately align with the end of the second fixed arc plate 316, laying a structural foundation for the subsequent stable clamping of the rigid rod.

[0027] The second fixed arc plate 316 can close with the first fixed arc plate 313 to form a ring. The inner side of the locking groove 312 and the end of the second fixed arc plate 316 away from the rotating bracket 315 are both embedded with magnets 311. The two magnets 311 have opposite magnetic properties on opposite sides.

[0028] When the fixed arc plate 313 and the fixed arc plate 316 are closed, the fixed arc plate 316 and the fixed arc plate 313 are tightly fitted together by the magnetic attraction of the magnet 311, and finally closed to form a complete ring structure, which firmly clamps the rigid rod inside the ring, preventing the rigid rod from shifting or rolling before the test. At the same time, the attraction of the magnet 311 can counteract the traction of the elastic rope 32, preventing the fixed arc plate 313 and the fixed arc plate 316 from separating and releasing the clamp.

[0029] When a heavy object strikes a rigid rod, the external force generated by the impact is greater than the magnetic attraction between the two magnets 311. The first fixed arc plate 313 and the second fixed arc plate 316 automatically separate, releasing the clamping of the rigid rod and not interfering with the transmission of the impact force to the battery pack. After the impact ends, under the traction of the elastic rope 32, the medium fixing ring 31 can return to its initial position, which is convenient for subsequent testing and repeated use.

[0030] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A battery pack anti-collision testing machine, characterized in that, include: The base (4) has an impact platform (3) at the top center and a data processing module (2) on one side of the top of the base (4). The data processing module (2) and the impact platform (3) are together provided with an impact component (1). The impact platform (3) includes a data acquisition platform (34) whose bottom end is fixedly connected to the top of the base (4). Both sides of the data acquisition platform (34) are slidably connected to positioning blocks (33). An elastic rope (32) is fixedly connected to the outer surface of the positioning block (33). A medium fixing ring (31) is fixedly connected to one end of the elastic rope (32) away from the positioning block (33).

2. The battery pack anti-collision testing machine according to claim 1, characterized in that, The medium fixing ring (31) includes a connecting block (314) with one end fixedly connected to the elastic rope (32), and a rotating bracket (315) is fixedly connected to the end of the connecting block (314) away from the elastic rope (32).

3. The battery pack anti-collision testing machine according to claim 2, characterized in that, The outer surface of the rotating bracket (315) is rotatably connected to a fixed arc plate (313), and an arc-shaped locking groove (312) is provided at the end of the fixed arc plate (313) away from the rotating bracket (315).

4. The battery pack anti-collision testing machine according to claim 3, characterized in that, The rotating bracket (315) has a fixed arc plate two (316) rotatably connected to the inner side of its outer surface. The fixed arc plate two (316) can close with the fixed arc plate one (313) to form a ring.

5. The battery pack anti-collision testing machine according to claim 4, characterized in that, The inner side of the locking groove (312) and the end of the fixed arc plate (316) away from the rotating bracket (315) are both embedded with magnets (311), and the magnets on opposite sides of the two magnets (311) are opposite.

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