Battery upper cover pressure resistance testing device

Abstract

This utility model relates to a battery cover pressure resistance testing device, including a mounting plate, a guide rail, a vertical compression assembly, and a lateral compression assembly. The guide rail is vertically arranged on the front side of the mounting plate. The vertical compression assembly is mounted on the mounting plate to fix the battery cover and subject it to vertical compression. The lateral compression assembly is arranged on the front side of the mounting plate to compress the sides of the battery cover. The vertical compression assembly includes two sliders slidably connected to the outside of the guide rail, and a placement plate is installed on the front side of each slider. This battery cover pressure resistance testing device, through the synergistic action of the vertical and lateral compression assemblies, can perform vertical and lateral pressure resistance tests on the battery cover, overcoming the limitation of traditional devices that can only perform tests in one direction. It comprehensively simulates the complex stress state of the battery cover in actual use, helping to discover more potential quality problems.

Description

Technical Field

[0001] This utility model relates to the field of battery cover testing technology, specifically a battery cover pressure resistance testing device. Background Technology

[0002] In the battery manufacturing industry, the quality of the battery cover directly affects the safety and stability of the battery, making comprehensive and accurate pressure resistance testing crucial. Currently, commonly available battery cover pressure resistance testing devices have many limitations.

[0003] Existing testing equipment typically only performs stamping tests on the upper surface of the battery cover, resulting in a very limited testing scope. In real-world applications, the pressure exerted on the battery cover is not unidirectional but complex and multidirectional. A single testing method cannot comprehensively simulate the stress state of the battery cover in actual use scenarios, making it difficult to detect many potential quality problems in a timely manner. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a battery cover pressure resistance testing device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery cover pressure resistance testing device, comprising a mounting plate, a guide rail, a vertical extrusion assembly, and a lateral extrusion assembly;

[0006] The guide rail is vertically arranged on the front side of the mounting plate, and the vertical extrusion assembly is mounted on the mounting plate to fix the battery cover and vertically extrude it.

[0007] The lateral extrusion assembly is disposed on the front side of the mounting plate for extruding the sides of the battery cover.

[0008] The vertical extrusion assembly includes two sliders slidably connected to the outside of the guide rail. A placement plate is installed on the front side of each of the two sliders. A groove is provided on the opposite side of each of the two placement plates so that the battery cover can be embedded in the inside of the two grooves.

[0009] The vertical extrusion assembly also includes a drive structure that is connected to the two sliders for driving the two sliders to move in opposite directions or in opposite directions.

[0010] The lateral extrusion assembly includes a connecting plate mounted on the front side of the mounting plate, a cylinder mounted on the right side of the connecting plate, the output end of the cylinder extending through and to the left side of the connecting plate, and an extrusion structure being drivenly connected to the output end of the cylinder.

[0011] Furthermore, the driving structure includes two bearing seats arranged vertically at intervals on the back of the mounting plate. A bidirectional lead screw is rotatably connected between the opposite sides of the two bearing seats. Two transmission pairs are threaded to the outer side of the bidirectional lead screw. A U-shaped plate is provided on the side of each transmission pair facing the mounting plate. The two U-shaped plates are respectively connected to the two sliders in a transmission connection.

[0012] A motor whose output end is connected to the bidirectional lead screw drive is also installed on the upper bearing housing.

[0013] Furthermore, the outer surface of the bidirectional lead screw is provided with two threaded grooves, and the thread directions of the two threaded grooves are opposite.

[0014] Furthermore, corresponding to the U-shaped plate, two sliding grooves are provided inside the mounting plate, and the two sliding grooves are respectively located on the left and right sides of the guide rail.

[0015] Furthermore, the extrusion structure includes a mounting base fixed to the cylinder output end by bolts, and an extrusion roller is detachably installed inside the mounting base for replacing extrusion rollers of different shapes.

[0016] Furthermore, a T-shaped groove is formed inside the mounting base along its length, and the connection end between the extrusion roller and the mounting base is T-shaped.

[0017] Furthermore, two guide rods are also installed on the side of the mounting base facing the connecting plate, and both guide rods are disposed inside the connecting plate.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] This battery cover pressure resistance testing device, through the coordinated action of vertical and lateral compression components, can perform vertical and lateral pressure resistance tests on the battery cover, overcoming the limitation of traditional devices that can only perform tests in one direction. It comprehensively simulates the complex stress state of the battery cover in actual use, which helps to discover more potential quality problems. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the vertical extrusion assembly structure of this utility model;

[0022] Figure 3 This is a rear view schematic diagram of the vertical extrusion assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the lateral extrusion assembly structure of this utility model.

[0024] In the diagram: 1. Mounting plate; 2. Guide rail; 3. Vertical extrusion assembly; 4. Lateral extrusion assembly; 301. Slider; 302. Placement plate; 303. Bearing seat; 305. Double-acting lead screw; 306. Transmission pair; 307. U-shaped plate; 308. Motor; 401. Connecting plate; 402. Cylinder; 403. Mounting base; 404. Extrusion roller; 405. Guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 The battery cover pressure resistance testing device in this embodiment includes a mounting plate 1, a guide rail 2, a vertical extrusion assembly 3, and a lateral extrusion assembly 4.

[0027] The mounting plate 1 serves as the basic support component of the entire device, providing a mounting platform for the guide rail 2, the vertical extrusion assembly 3, and the lateral extrusion assembly 4. Bolt holes are provided at all four corners of the mounting plate 1 to fix the mounting plate 1 to the testing device, ensuring that each component can operate stably during the test. The guide rail 2 is vertically positioned on the front side of the mounting plate 1 to guide the sliding of the vertical extrusion assembly 3 and ensure the accuracy of the vertical extrusion action.

[0028] In detail, the vertical compression assembly 3 is mounted on the mounting plate 1 to fix the battery cover and vertically compress it. It includes two sliders 301, a placement plate 302, and a drive structure. The two sliders 301 are slidably connected to the outside of the guide rail 2 and can slide up and down along the guide rail 2. The front side of each slider 301 is equipped with a placement plate 302. The opposite side of each placement plate 302 has a groove, and the battery cover can be embedded in the two grooves to achieve the initial positioning of the battery cover.

[0029] In actual setup, grooves are opened on opposite sides of the placement plate 302 so that the battery cover can be stably embedded in the grooves to achieve initial fixation. When the drive structure drives the two sliders 301 to move in opposite directions, the placement plate 302 can apply vertical compressive force to the battery cover to meet the requirements of vertical pressure resistance test. At the same time, the groove design can prevent the battery cover from slipping off during the test.

[0030] Furthermore, the drive structure is connected to the two sliders 301 for driving the two sliders 301 to move in opposite directions or back to back, and includes two bearing seats 303, a two-way lead screw 305, two transmission pairs 306, two U-shaped plates 307 and a motor 308.

[0031] Two bearing seats 303 are arranged vertically on the back of the mounting plate 1 to provide rotational support for the bidirectional lead screw 305. The bidirectional lead screw 305 is rotatably connected between the two bearing seats 303 on opposite sides, and its outer surface has two threaded grooves with opposite thread directions. Two transmission pairs 306 are threaded to the outside of the bidirectional lead screw 305 and are respectively adapted to the two threaded grooves. Each of the two transmission pairs 306 has a U-shaped plate 307 on the side facing the mounting plate 1. The mounting plate 1 has two sliding grooves corresponding to the U-shaped plate 307, located on the left and right sides of the guide rail 2 respectively. The U-shaped plate 307 passes through the sliding grooves and is connected to the slider 301 for transmission. The motor 308 is mounted on the upper bearing seat 303, and its output end is connected to the bidirectional lead screw 305 for transmission, providing power for the rotation of the bidirectional lead screw 305.

[0032] In actual use, when the motor 308 drives the bidirectional lead screw 305 to rotate, because the two sections of the bidirectional lead screw 305 have opposite thread directions, the two transmission pairs 306 will drive the U-shaped plate 307 and the slider 301 to move synchronously in opposite directions or in opposite directions, so as to achieve clamping and fixing of the battery cover or vertical compression test.

[0033] More specifically, the lateral extrusion assembly 4 is disposed on the front side of the mounting plate 1 for extruding the side of the battery cover, and includes a connecting plate 401, a cylinder 402, and an extrusion structure. The connecting plate 401 is mounted on the front side of the mounting plate 1, the cylinder 402 is mounted on the right side of the connecting plate 401, and its output end extends through and to the left side of the connecting plate 401 to provide power for the extrusion action. The extrusion structure is drivenly connected to the output end of the cylinder 402 and includes a mounting base 403 and an extrusion roller 404. The mounting base 403 is fixed to the output end of the cylinder 402 by bolts.

[0034] Preferably, the mounting base 403 has a T-shaped groove inside along its length extension direction, and the connection end between the extrusion roller 404 and the mounting base 403 is T-shaped, so that the extrusion roller 404 can be detachably installed inside the mounting base 403, making it convenient to replace extrusion rollers 404 of different shapes. Two guide rods 405 are also installed on the side of the mounting base 403 facing the connecting plate 401. Both guide rods 405 are inserted through the interior of the connecting plate 401 to ensure the stability of the extrusion structure during movement.

[0035] In actual setup, the mounting base 403 and the extrusion roller 404 are detachably connected via a T-slot and a T-shaped connecting end, which facilitates the replacement of the appropriate extrusion roller 404 according to different battery cover shapes, enhancing the versatility of the device. At the same time, the guide rod 405 passes through the connecting plate 401 and connects to the mounting base 403, which can effectively prevent the extrusion structure from shaking or shifting during movement, ensuring the accuracy of lateral extrusion.

[0036] It should be noted that during the test, the output parameters of motor 308 and cylinder 402 can be adjusted as needed to control the magnitude and duration of the extrusion force, comprehensively testing the pressure resistance of the battery cover under different pressure conditions. After the test is completed, the reverse drive motor 308 moves the two sliders 301 in opposite directions, and cylinder 402 drives the extrusion structure to reset, allowing the battery cover to be removed.

[0037] The working principle of the above embodiments is as follows:

[0038] 1. Before testing, first place both ends of the battery cover into the grooves of the two placement plates 302 in the vertical extrusion assembly 3, start the motor 308, and the motor 308 drives the bidirectional lead screw 305 to rotate between the two bearing seats 303. Since the two threads of the bidirectional lead screw 305 are opposite in direction, the two transmission pairs 306 connected to it will drive the U-shaped plate 307 to move in opposite directions along the slide groove of the mounting plate 1, thereby pushing the two sliders 301 to slide in opposite directions along the guide rail 2, so that the two placement plates 302 gradually approach and clamp the battery cover, thus completing the fixing of the battery cover.

[0039] 2. When a vertical compression test is required on the battery cover, the bidirectional lead screw 305 is driven to rotate by the motor 308, causing the two sliders 301 to move further in opposite directions. The two placement plates 302 apply vertical compression force to the battery cover, simulating the pressure that the battery cover bears in the vertical direction, thereby testing its vertical pressure resistance performance. When a side pressure resistance test is required on the battery cover, after the battery cover is fixed by the vertical compression assembly 3, the cylinder 402 of the side compression assembly 4 is activated. The output end of the cylinder 402 pushes the mounting base 403 to move. The mounting base 403 drives the compression roller 404 to approach the side of the battery cover. The guide rod 405 moves synchronously with the mounting base 403 and slides in the connecting plate 401 to ensure that the compression roller 404 moves smoothly. After the compression roller 404 contacts the side of the battery cover, pressure is applied to the side under the thrust of the cylinder 402, simulating the pressure that the battery cover bears in the side direction, thereby realizing the side pressure resistance test.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery cover withstand voltage testing device, characterized in that: It includes a mounting plate (1), a guide rail (2), a vertical extrusion assembly (3), and a lateral extrusion assembly (4). The guide rail (2) is vertically arranged on the front side of the mounting plate (1), and the vertical extrusion assembly (3) is installed on the mounting plate (1) to fix the battery cover and vertically extrude it. The lateral extrusion assembly (4) is disposed on the front side of the mounting plate (1) for extruding the side of the battery cover. The vertical extrusion assembly (3) includes two sliders (301) slidably connected to the outside of the guide rail (2). A placement plate (302) is installed on the front side of each of the two sliders (301). A groove is provided on the opposite side of each of the two placement plates (302) so that the battery cover can be embedded in the inside of the two grooves. The vertical extrusion assembly (3) also includes a drive structure that is connected to the two sliders (301) for driving the two sliders (301) to move in opposite directions or in opposite directions; The lateral extrusion assembly (4) includes a connecting plate (401) installed on the front side of the mounting plate (1). A cylinder (402) is installed on the right side of the connecting plate (401). The output end of the cylinder (402) extends through and to the left side of the connecting plate (401). The output end of the cylinder (402) is connected to an extrusion structure.

2. The battery cover withstand voltage testing device according to claim 1, characterized in that: The drive structure includes two bearing seats (303) arranged vertically at intervals on the back of the mounting plate (1). A two-way lead screw (305) is rotatably connected between the opposite sides of the two bearing seats (303). Two transmission pairs (306) are threaded to the outer side of the two-way lead screw (305). A U-shaped plate (307) is provided on the side of the two transmission pairs (306) facing the mounting plate (1). The two U-shaped plates (307) are respectively connected to the two sliders (301). The upper bearing housing (303) is also equipped with a motor (308) whose output end is connected to the bidirectional lead screw (305).

3. The battery cover withstand voltage testing device according to claim 2, characterized in that: The outer surface of the bidirectional lead screw (305) is provided with two threaded grooves, and the thread directions of the two threaded grooves are opposite.

4. The battery cover withstand voltage testing device according to claim 2, characterized in that: Corresponding to the U-shaped plate (307), two sliding grooves are provided inside the mounting plate (1), and the two sliding grooves are respectively located on the left and right sides of the guide rail (2).

5. The battery cover withstand voltage testing device according to claim 1, characterized in that: The extrusion structure includes a mounting base (403) fixed to the output end of the cylinder (402) by bolts, and an extrusion roller (404) is detachably installed inside the mounting base (403) for replacing extrusion rollers (404) of different shapes.

6. The battery cover withstand voltage testing device according to claim 5, characterized in that: The mounting base (403) has a T-shaped groove inside along its length extension direction, and the connection end of the extrusion roller (404) and the mounting base (403) is T-shaped.

7. The battery cover withstand voltage testing device according to claim 5, characterized in that: Two guide rods (405) are also installed on the side of the mounting base (403) facing the connecting plate (401), and both guide rods (405) are disposed inside the connecting plate (401).

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