Battery module expansive force testing device

Abstract

The utility model provides a battery module expansive force testing device, which comprises a testing assembly, a quick release mechanism and an adjusting mechanism, and is characterized in that the testing assembly comprises a first testing assembly and a second testing assembly which are oppositely arranged, and the two testing assemblies are used for carrying out clamping and expansive force testing on a battery or a battery module; the quick release mechanism and the adjusting mechanism are connected to the first test assembly and the second test assembly respectively and adjust the positions of the first test assembly and the second test assembly, the battery modules are installed in a matched mode, and the quick release mechanism and the adjusting mechanism can adapt to the battery modules of various structural sizes and are high in universality. The quick dismounting mechanism can achieve quick clamping and dismounting, the working efficiency is improved, the adjusting mechanism can achieve fine adjustment to adapt to the size of the battery module, the adjusting mechanism and the workbench are detachably connected, flexible adjustment is convenient to achieve, and the whole device is simple in structure and convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the field of battery testing technology, specifically relating to a battery module expansion force testing device. Background Technology

[0002] Battery swelling is usually caused by internal gas generation, overcharging, overheating, or improper use. It may lead to decreased battery performance, shortened lifespan, or even safety accidents. Battery swelling detection is crucial for battery safety and performance, and one commonly used detection method is swelling force testing.

[0003] Traditionally, battery expansion force testing involves fabricating and testing fixtures for individual batteries of a single specification. Most existing battery expansion force testing devices can only test the expansion force of a single battery of a single specification. When changing cells or testing the expansion force of a cell module, the device becomes unsuitable. Therefore, when battery dimensions change, the expansion force testing fixture needs to be remade, which not only increases fixture fabrication time and testing costs but also affects the entire battery pack development process. Furthermore, testing a single battery cannot reflect the stress on the battery within the module, leading to inaccurate test results that fail to meet customer needs. This is because, in addition to the battery, the battery module contains other structural components; it is an assembly that requires assembling these parts with the battery before performing expansion force testing on the module. This also places demands on the adjustability of the testing device. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a battery module expansion force testing device, which can perform expansion force testing on battery modules of various specifications by adjustment. It has a simple structure, a concise process, is easy to use, has low operating costs, and is highly versatile.

[0005] To achieve the above and other related objectives, this utility model provides a battery module expansion force testing device, comprising:

[0006] The test assembly is slidably mounted on the worktable and includes a first test assembly and a second test assembly that are arranged opposite to each other, with the battery module disposed between the first test assembly and the second test assembly.

[0007] An adjustment mechanism is connected to the side of the second test component away from the battery module. The adjustment mechanism drives the second test component to move on the worktable and move closer to or further away from the first test component.

[0008] A quick-release mechanism is connected to the side of the first test component away from the battery module. The quick-release mechanism drives the first test component to move towards the second test component to clamp the battery module, or drives the first test component to move away from the second test component to release the battery module. In an optional embodiment of this invention, a slide rail is provided on the worktable, and the bottoms of the first test component and the second test component are slidably connected to the worktable via the slide rail.

[0009] In an optional embodiment of the present invention, the first test component includes a first mounting plate and a first pressure plate disposed perpendicular to the workbench, the first mounting plate and the first pressure plate being connected by a first sensor, and the bottom surface of the first mounting plate being slidably connected to the workbench;

[0010] The quick-release mechanism is connected to the side of the first mounting plate away from the first pressure plate. When the quick-release mechanism drives the first mounting plate to slide on the worktable and approach the battery module, it causes the first pressure plate to abut against the end face of the battery module.

[0011] In an optional embodiment of this utility model, the second test component includes a second mounting plate and a second pressure plate disposed perpendicular to the workbench, the second mounting plate and the second pressure plate being connected by a second sensor, and the bottom surface of the second mounting plate being slidably connected to the workbench;

[0012] The adjustment mechanism is connected to the side of the second mounting plate away from the second pressure plate. When the adjustment mechanism drives the second mounting plate to slide on the worktable and approach the battery module, it causes the second pressure plate to abut against the end face of the battery module.

[0013] In an optional embodiment of this utility model, the quick-release mechanism includes:

[0014] A first support frame is provided on the workbench;

[0015] The driving component is rotatably connected to the first support frame;

[0016] A connector, one end of which is rotatably connected to the drive component, and the other end of which is rotatably connected to the first mounting plate;

[0017] When the drive component rotates, it drives the first mounting plate to move along the length direction of the slide rail via the connector.

[0018] In an optional embodiment of this utility model, the two sets of quick-release mechanisms are respectively disposed at both ends of the first mounting plate.

[0019] In an optional embodiment of this utility model, the adjusting mechanism includes:

[0020] A second support frame is mounted on the workbench;

[0021] A pull rod is rotatably connected at one end to the second mounting plate. The pull rod has a threaded section, and the second support frame has a corresponding threaded hole. The pull rod is threadedly connected to the second support frame. When the pull rod rotates, it moves relative to the second support frame, thereby driving the second mounting plate to move along the length direction of the slide rail.

[0022] In an optional embodiment of this utility model, the pull rod is connected to the second mounting plate via a bearing.

[0023] In an optional embodiment of this utility model, the quick-release mechanism and the adjustment mechanism are detachably connected to the worktable.

[0024] In an optional embodiment of this utility model, the first sensor and the second sensor each include at least one pressure sensor.

[0025] The technical advantages of this invention are as follows: it uses the first and second test components on both sides to perform expansion force testing on the battery module, and the positions of the two test components can be adjusted separately through the quick-release mechanism and the adjustment mechanism, thereby adapting to expansion testing of batteries or battery modules of different sizes. The measurement is accurate and highly versatile. The quick-release mechanism enables rapid disassembly of the battery module, resulting in high work efficiency. The overall structure of the device is simple, the operation process is concise, the operating cost is low, and the components are detachably connected to the worktable, making it easy to replace and adjust, more flexible in use, and widely applicable. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the battery module expansion force testing device in an optional embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the battery module expansion force testing device in an optional embodiment of the present invention;

[0029] Figure 3 This is a front view of the battery module expansion force testing device in an optional embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the quick-release mechanism in an optional embodiment of the present invention.

[0031] Label Explanation:

[0032] 100. Test components; 200. Quick-release mechanism; 300. Adjustment mechanism; 400. Battery module;

[0033] 110. First test component; 120. Second test component; 111. First mounting plate; 112. First sensor; 113. First pressure plate; 121. Second mounting plate; 122. Second sensor; 123. Second pressure plate;

[0034] 210. First support frame; 220. Drive component; 230. Connecting component; 310. Second support frame; 320. Tie rod; 330. Bearing. Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] Battery expansion testing is crucial for battery safety and performance. Expansion force testing often involves creating corresponding fixtures based on battery size. However, considering that a battery module is an assembly, expansion force testing is required on the assembled battery module. Different models and specifications of battery modules have different sizes, requiring fixtures of different sizes and structures. Manufacturing fixtures specifically for different sizes is not only costly but also affects the battery development process. This necessitates providing a test fixture that can be adaptively adjusted for different battery modules.

[0038] Please see Figures 1 to 4This utility model proposes a battery module expansion force testing device, including a testing component 100, a quick-release mechanism 200, and an adjustment mechanism 300. The testing component 100 is slidably mounted on a worktable for clamping a battery module 400 and performing expansion force testing. The quick-release mechanism 200 is connected to one side of the testing component 100 and can drive the rapid movement of the testing component 100. At the same time, the adjustment mechanism 300 is connected to the other side of the testing component 100 and can finely adjust the position of the testing component 100. Through the cooperation of the quick-release mechanism 200 and the adjustment mechanism 300, the position of the testing component 100 can be adjusted, thereby adapting it to battery modules 400 of different sizes. It has good adjustability, good versatility, and strong practicality, effectively reducing the tooling manufacturing cost. Moreover, the quick-release mechanism 200 can quickly install and remove the battery module 400 before and after testing, improving work efficiency while flexibly adjusting it.

[0039] Please see Figures 1 to 4 In an optional embodiment of this utility model, the test component 100 is slidably mounted on the workbench, and includes a first test component 110 and a second test component 120 arranged opposite to each other. The first test component 110 and the second test component 120 are arranged opposite to each other along the length direction of the workbench. The battery module 400 is disposed between the first test component 110 and the second test component 120. The battery module 400 is clamped and fixed by the two test components 100, and the battery expansion force is tested. The quick-release mechanism 200 is connected to the side of the first test assembly 110 away from the battery module 400. The quick-release mechanism 200 drives the first test assembly 110 to move on the worktable toward the direction of the second test assembly 120 to clamp the battery module 400, or drives the first test assembly 110 to move on the worktable away from the second test assembly 120 to release the battery module 400 and disassemble it. The adjustment mechanism 300 is connected to the side of the second test assembly 120 away from the battery module 400. It is used to drive the second test assembly 120 to move on the worktable to move closer to or further away from the battery module 400, cooperate with the first test assembly 110 to clamp the battery module 400, and can adapt to battery modules 400 of different sizes. A slide rail is also provided on the workbench. The bottom of the first test component 110 and the second test component 120 are slidably connected to the workbench via the slide rail. For example, the bottom of the test component 100 can be provided with a slider with a groove, which is set on the slide rail and engaged with the slide rail. Under the action of the quick release mechanism 200 and the adjustment mechanism 300, the first test component 110 and the second test component 120 can slide along the length direction of the slide rail.

[0040] Please see Figures 1 to 4In an optional embodiment of this utility model, the first test component 110 includes a first mounting plate 111, a first sensor 112, and a first pressure plate 113. The first mounting plate 111 and the first pressure plate 113 are arranged perpendicular to the workbench. The bottom of the first mounting plate 111 is slidably connected to the workbench. A quick-release mechanism 200 is connected to the side of the first mounting plate 111 away from the first pressure plate 113. When the quick-release mechanism 200 drives the first mounting plate 111 to slide on the workbench and approach the battery module 400, it causes the first pressure plate 113 to abut against the end face of the battery module 400. In cooperation with the second test component 120 on the other side, the battery module 400 can be installed and fixed. After the test is completed, the battery module 400 can be removed by disengaging the first pressure plate 113 from the end face of the battery module 400. The first mounting plate 111 and the first pressure plate 113 are connected by the first sensor 112. After the battery module 400 is installed, the battery expansion force can be detected by the first sensor 112.

[0041] Specifically, for example, the first mounting plate 111 can be an L-shaped plate, with its bottom mounting plate slidably connected to the worktable via a slide rail. The first sensor 112 is a pressure sensor. After the battery module 400 is installed, it will expand under test conditions, thereby generating pressure on the test components 100 at both ends. The pressure sensor can accurately detect the expansion force of the battery module 400. It is understood that the first sensor 112 includes at least one pressure sensor, that is, one or more pressure sensors can be set between the first mounting plate 111 and the first pressure plate 113. The arrangement of the pressure sensors can achieve accurate detection of pressure at different positions, and the connection method and structure of the sensors are not limited.

[0042] Please see Figures 1 to 4In an optional embodiment of this utility model, the second test component 120 includes a second mounting plate 121, a second sensor 122, and a second pressure plate 123. The second mounting plate 121 and the second pressure plate 123 are arranged perpendicular to the worktable. The bottom of the second mounting plate 121 is slidably connected to the worktable. An adjustment mechanism 300 is connected to the side of the second mounting plate 121 away from the second pressure plate 123. When the adjustment mechanism 300 drives the second mounting plate 121 to slide on the worktable and approach the battery module 400, it causes the second pressure plate 123 to abut against the other end face of the battery module 400. In cooperation with the first pressure plate 113, the battery module 400 can be installed and fixed. The second mounting plate 121 and the second pressure plate 123 are connected by the second sensor 122. After the battery module 400 is installed, the battery expansion force can be detected by the second sensor 122. Specifically, the structure of the second test component 120 is similar to that of the first test component 110. The two are symmetrically arranged at both ends of the battery module 400 to cooperate in the installation and testing of the battery module 400. The second sensor 122 includes at least one pressure sensor for detecting expansion force.

[0043] It should be noted that the adjustment mechanism 300 is connected to the second test component 120 and can fine-tune the position of the second pressure plate 123. Before the test begins, after the quick-release mechanism 200 drives the first pressure plate 113 to abut against one end of the battery module 400, the adjustment mechanism 300 is used to adjust the second pressure plate 123 so that it abuts against the other end of the battery module 400. The pressure plates at both ends can be attached to the two end faces of the battery module 400 respectively. Since the mounting plates on both sides are limited, during the test, when the battery module expands, it will exert a force on the pressure plates on both sides and transmit it to the mounting plates. The pressure sensor between the pressure plate and the mounting plate can be used to test the pressure changes on both sides and obtain the battery expansion force data. After the test is completed, the second pressure plate 123 can be quickly separated from the battery module 400 using the quick-release mechanism 200, leaving enough space to remove the battery module 400. There is no need to adjust it again through the adjustment mechanism 300, making the operation more efficient.

[0044] Please see Figures 1 to 4In an optional embodiment of this utility model, the quick-release mechanism 200 includes a first support frame 210, a driving member 220, and a connecting member 230. The first support frame 210 is disposed on the workbench, the driving member 220 is rotatably connected to the first support frame 210, one end of the connecting member 230 is rotatably connected to the driving member 220, and the other end is rotatably connected to the first mounting plate 111; when the driving member 220 rotates, it drives the first mounting plate 111 to move along the length direction of the slide rail through the connecting member 230. Specifically, for example, a handle can be provided on the drive component 220 to facilitate operation and rotation of the drive component 220. A transmission component can be provided on the first mounting plate 111, and the first mounting plate 111 is rotatably connected to the connector 230 through the transmission component. When the handle is pulled to rotate the drive component 220, since the first mounting plate 111 is slidably connected to the worktable through a slide rail, the rotating pairs at both ends of the connector 230 can drive the transmission component and the first mounting plate 111 to move along the slide rail, thereby bringing the first pressure plate 113 into contact with one end face of the battery module 400. Then, the second pressure plate 123 is finely adjusted to contact the battery module 400. The other end face abuts and is fixed. When the first pressure plate 113 and the second pressure plate 123 abut against the battery module 400 and the rotating shafts on the quick release mechanism 200 are on the same horizontal line, the limit can be achieved. At this time, the battery module 400 is fixed between the first pressure plate 113 and the second pressure plate 123, and operations such as expansion force testing of the battery can be performed. After the test is completed, the first pressure plate 113 can be quickly separated from the end face of the battery module 400 by applying external force to the drive component 220 through the handle and pulling it, and the first pressure plate 113 can be moved away from the battery module 400 to leave enough space, and the battery module 400 can be taken out.

[0045] Please see Figures 1 to 4 In an optional embodiment of this utility model, two sets of quick-release mechanisms 200 are respectively disposed at both ends of the first mounting plate 111. The two sets of quick-release mechanisms 200 work together to effectively limit the battery module 400, ensuring the stability of the overall structure during testing. Before testing, the battery module 400 is placed in an appropriate position according to the position of the quick-release mechanisms 200. The distance between the two pressure plates can be pre-adjusted using the adjustment mechanism 300 according to the size of the battery module 400, or quick-release mechanisms 200 of different sizes and structures can be used to better cooperate with the adjustment mechanism 300 for efficient and accurate adjustment. It is understood that in other embodiments, the quick-release mechanism 200 can also be other structures capable of rapid adjustment, such as cylinders and telescopic rods. After the first pressure plate 113 is adjusted to a certain position and fixed using the quick-release mechanism 200, it cooperates with the adjustment mechanism 300 to limit the battery module 400, thereby achieving the expansion force test.

[0046] Please see Figures 1 to 4In an optional embodiment of this utility model, the adjusting mechanism 300 includes a second support frame 310 and a pull rod 320. The second support frame 310 is disposed on the worktable, and one end of the pull rod 320 is rotatably connected to the second mounting plate 121. The pull rod 320 has a threaded section, and the second support frame 310 is correspondingly provided with a threaded hole. The pull rod 320 is threadedly connected to the second support frame 310. When the pull rod 320 rotates, it moves relative to the second support frame 310, thereby driving the second mounting plate 121 to move along the length direction of the slide rail, thereby adjusting the distance between the two pressure plates to accommodate battery modules 400 of different sizes. The pull rod 320 and the second mounting plate 121 are connected by a bearing 330, which facilitates the effortless rotation of the pull rod 320. By using the threaded screw connection method, the position of the second pressure plate 123 can be accurately fine-tuned, and the first pressure plate 113 can be used to properly clamp battery modules 400 of different sizes, which has strong versatility and good testing results. It is understood that the adjustment mechanism 300 is also equipped with a self-locking mechanism to ensure the fixation of the battery module 400 during testing, so that the battery expansion force data can be obtained based on the force on the two pressure plates. In other embodiments, the adjustment mechanism 300 can also be other structures that can be finely adjusted, such as a wedge mechanism, which, together with the quick-release mechanism 200, can clamp battery modules 400 of different sizes and achieve quick installation and removal.

[0047] Please see Figures 1 to 4 In an optional embodiment of this utility model, the quick-release mechanism 200 and the adjustment mechanism 300 are detachably connected to the worktable, which facilitates the disassembly and maintenance of components. Furthermore, different structures can be replaced for battery modules 400 with different structural sizes and testing requirements, allowing for flexible adjustments to the overall design to achieve better coordination and improve work efficiency.

[0048] Please see Figures 1 to 4 In an optional embodiment of this utility model, before the test begins, the battery module 400 is first placed in a suitable position. Then, the drive member 220 is rotated, and the connector 230 drives the first mounting plate 111 to move along the slide rail and approach the battery module 400 until the first pressure plate 113 is in close contact with the end face of the battery module 400. At this time, the rotation points of the quick-release mechanism 200 are on the same horizontal line, thus achieving effective limiting. Then, the pull rod 320 is rotated to drive the second pressure plate 123 to move along the slide rail until it is in close contact with the other end face of the battery module 400. At this time, both ends of the battery module 400 are respectively in contact with the pressure plates on both sides and are fixed under the limiting on both sides. The charging and discharging of the battery begins, and the pressure sensors at both ends are used to obtain the expansion force data, thereby realizing its expansion force measurement. After the test is completed, the drive member 220 is rotated to disengage the first pressure plate 113 from the battery module 400, and the first pressure plate 113 is moved away from the battery module 400 to leave space for the removal of the battery cell or the battery module 400.

[0049] In summary, the battery module expansion force testing device of this utility model utilizes the testing components 100 at both ends to test the expansion force of the battery. The battery or battery module 400 is clamped and installed using the quick-release mechanism 200 and the adjustment mechanism 300. This design is convenient to operate, provides accurate measurements, and is adaptable to batteries or battery modules 400 of different sizes. The quick-release mechanism 200 allows for efficient position adjustment before and after testing, facilitating battery installation and removal, improving efficiency, and simplifying operation. The detachable connection between the adjustment mechanism and the worktable facilitates replacement and adjustment, resulting in a more flexible structure. The overall device has a simple structure, concise operation process, is easy to use, has low operating costs, and strong versatility.

[0050] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0051] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0052] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0053] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0054] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0055] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0056] The above description of the embodiments shown in this utility model (including the content set forth in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments described herein, and such modifications will be within the spirit and scope of the utility model.

[0057] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0058] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A battery module expansion force testing device, characterized in that, include: The test assembly is slidably mounted on the worktable and includes a first test assembly and a second test assembly that are arranged opposite to each other, with the battery module disposed between the first test assembly and the second test assembly. An adjustment mechanism is connected to the side of the second test component away from the battery module. The adjustment mechanism drives the second test component to move on the worktable and move closer to or further away from the first test component. A quick-release mechanism is connected to the side of the first test component away from the battery module. The quick-release mechanism drives the first test component to move toward the direction closer to the second test component to clamp the battery module, or drives the first test component to move away from the second test component to release the battery module.

2. The battery module expansion force testing device according to claim 1, characterized in that, The workbench is equipped with a slide rail, and the bottoms of the first test component and the second test component are slidably connected to the workbench via the slide rail.

3. The battery module expansion force testing device according to claim 2, characterized in that, The first test component includes a first mounting plate and a first pressure plate that are perpendicular to the workbench. The first mounting plate and the first pressure plate are connected by a first sensor, and the bottom surface of the first mounting plate is slidably connected to the workbench. The quick-release mechanism is connected to the side of the first mounting plate away from the first pressure plate. When the quick-release mechanism drives the first mounting plate to slide on the worktable and approach the battery module, it causes the first pressure plate to abut against the end face of the battery module.

4. The battery module expansion force testing device according to claim 3, characterized in that, The second test component includes a second mounting plate and a second pressure plate that are perpendicular to the worktable. The second mounting plate and the second pressure plate are connected by a second sensor, and the bottom surface of the second mounting plate is slidably connected to the worktable. The adjustment mechanism is connected to the side of the second mounting plate away from the second pressure plate. When the adjustment mechanism drives the second mounting plate to slide on the worktable and approach the battery module, it causes the second pressure plate to abut against the end face of the battery module.

5. The battery module expansion force testing device according to claim 3, characterized in that, The quick-release mechanism includes: A first support frame is mounted on the workbench; The driving component is rotatably connected to the first support frame; A connector, one end of which is rotatably connected to the drive component, and the other end of which is rotatably connected to the first mounting plate; When the drive component rotates, it drives the first mounting plate to move along the length direction of the slide rail via the connector.

6. The battery module expansion force testing device according to claim 3, characterized in that, The two sets of quick-release mechanisms are respectively located at both ends of the first mounting plate.

7. The battery module expansion force testing device according to claim 4, characterized in that, The adjustment mechanism includes: A second support frame is mounted on the workbench; A pull rod is rotatably connected at one end to the second mounting plate. The pull rod has a threaded section, and the second support frame has a corresponding threaded hole. The pull rod is threadedly connected to the second support frame. When the pull rod rotates, it moves relative to the second support frame, thereby driving the second mounting plate to move along the length direction of the slide rail.

8. The battery module expansion force testing device according to claim 7, characterized in that, The tie rod is connected to the second mounting plate via a bearing.

9. The battery module expansion force testing device according to claim 1, characterized in that, The quick-release mechanism and the adjustment mechanism are detachably connected to the worktable.

10. The battery module expansion force testing device according to claim 4, characterized in that, The first sensor and the second sensor each include at least one pressure sensor.

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