A kind of nickel-hydrogen battery pressure detection device

Abstract

The utility model discloses a kind of nickel-metal hydride battery pressure resistance detection devices, it is related to battery pack detection device technical field, including pressure resistance detection device main part, the front surface of pressure resistance detection device main part is provided with protective window, and the inner wall top of pressure resistance detection device main part is provided with pressure plate, the inner surface both sides of pressure resistance detection device main part are provided with support frame. Compared with the existing ordinary battery detection battery pack detection device for battery, by the setting of friction roller, pressure test can be carried out on battery pack, the placement of battery pack can be facilitated by the pushing mode between, reduce the friction generated when supporting frame clamps battery pack;By the setting of compression spring one. By the characteristics of elastic reset, supporting frame and battery pack are adhered to be pushed, to adapt the size of battery pack, while also can be positioned and fixed to battery pack when pressing down, improve the stability when pressing down test.

Description

Technical Field

[0001] This utility model relates to the technical field of battery pack testing devices, specifically a nickel-metal hydride battery pressure testing device. Background Technology

[0002] During battery production, pressure resistance testing is frequently required to ensure battery safety. However, existing automatic battery testing devices generally lack a fixed structure. When the automatic testing device repeatedly squeezes the battery, it can easily cause the battery to shift, resulting in significant deviations in the test data and potential defects in use. Furthermore, batteries may explode under heavy pressure, and the fragments could splash onto the tester or even into their eyes, posing a safety hazard and causing inconvenience to the user. Therefore, a battery pack testing device for battery testing is proposed.

[0003] For example, patent application number 202420349184.1 discloses a battery pack testing device for battery testing. The utility model relates to the field of testing technology and discloses a battery pack testing device for battery testing, including a housing, a fixed plate, an operating table, and an annular ring. A sliding groove is fixedly provided on the operating table, a support frame is fixedly provided below the operating table, a cylinder is fixedly provided on the support frame, a slider is fixedly connected to the output end of the cylinder, a clamping block is fixedly connected to the top of the slider, a connecting rod is hinged to the side of the slider away from the cylinder, and a telescopic rod is hinged to the connecting rod. In this invention, the motor drives the connecting rod three to rotate via connecting rod one and connecting rod two, which in turn drives the extrusion plate on connecting rod three to extrude the battery, thus performing a battery pressure resistance test. This achieves automatic battery pressure resistance testing. Simultaneously, placing the testing device inside the housing prevents the battery from exploding under pressure, as fragments could potentially splash onto the tester or even into their eyes. However, this battery pack testing device typically requires manual placement of the battery pack onto the test platform during testing. This increases workload and may cause the battery pack to shift, affecting the test results.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a nickel-metal hydride battery pressure testing device. Utility Model Content

[0005] The purpose of this invention is to provide a nickel-metal hydride battery pressure testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a nickel-metal hydride battery pressure resistance testing device, comprising a pressure resistance testing device body, a protective window provided on the front surface of the pressure resistance testing device body, a pressure plate provided on the top of the inner wall of the pressure resistance testing device body, support frames provided on both sides of the inner surface of the pressure resistance testing device body, a limiting slide rod slidably installed through the surface of the support frame, a compression spring sleeved on the outer surface of the limiting slide rod, and a support frame provided at the end of the limiting slide rod.

[0007] Preferably, a friction roller is rotatably mounted on the inner surface of the support frame, and the friction roller is frictionally connected to both sides of the battery frame.

[0008] Preferably, a placement plate is installed on the bottom surface of the inner wall of the main body of the pressure testing device, and multiple guide holes are opened on the upper surface of the placement plate.

[0009] Preferably, a support block is provided at the bottom of the guide hole, and a compression spring is provided on the upper surface of the support block.

[0010] Preferably, the upper surface of the compression spring two is provided with a sliding block, and the sliding block is slidably connected to the inner surface of the guide hole.

[0011] Preferably, friction balls are rolled on the upper surface of the sliding block, and the friction balls are frictionally connected to the bottom surface of the battery frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the arrangement of a main body of a pressure testing device, a protective window, a pressure plate, a support frame, a limiting slide bar, a support frame, a friction roller, and a compression spring, allows for easy placement of the battery pack during pressure testing by pushing it between the components, reducing friction generated when the support frame clamps the battery pack. The compression spring, through its elastic restoring characteristic, pushes the support frame to fit the battery pack, adapting to the size of the battery pack, and also positions and fixes the battery pack during pressure testing, improving stability during the pressure test. 2. This utility model, through the arrangement of a placement plate, guide hole, support block, compression spring II, sliding block, and friction balls, allows the battery pack to slide rapidly by pushing, thus increasing the loading and unloading speed and reducing the burden of going up and down stairs. The compression spring II, when the pressure plate presses down on the battery pack for testing, elastically compresses and causes the friction balls to contract, entering the guide hole and ensuring the stability of the battery pack. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the friction roller of this utility model; Figure 3 This is a three-dimensional structural diagram of the placement plate of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Main body of the pressure testing device; 101. Protective window; 102. Pressure plate; 2. Support frame; 201. Limiting slide bar; 202. Support frame; 203. Friction roller; 204. Compression spring one; 3. Placement plate; 301. Guide hole; 302. Support block; 303. Compression spring two; 304. Sliding block; 305. Friction ball. Detailed Implementation

[0015] 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.

[0016] like Figures 1-2 As shown, a nickel-metal hydride battery pressure testing device includes a pressure testing device body 1. A protective window 101 is provided on the front surface of the pressure testing device body 1, and a pressure plate 102 is provided on the top of the inner wall of the pressure testing device body 1. With this technical solution, the battery pack can be pressure tested by pressing through the setting of the pressure plate 102.

[0017] Furthermore, support frames 2 are provided on both sides of the inner surface of the main body 1 of the pressure testing device, and a limiting slide rod 201 is slidably installed through the surface of the support frame 2. A compression spring 204 is sleeved on the outer surface of the limiting slide rod 201. This technical solution, through the setting of the compression spring 204, can push the support frame 202 to fit with the battery pack by means of its elastic reset characteristic, so as to adapt to the size of the battery pack. At the same time, it can also position and fix the battery pack when pressed down, improving the stability during the pressure test. The support frame 2 can support the limiting slide rod 201 and the compression spring 204. The two ends of the compression spring 204 are connected to the end surfaces of the support frame 2 and the limiting slide rod 201, respectively, to ensure that the compression spring 204 can be used normally.

[0018] Furthermore, a support frame 202 is provided at the end of the limiting slide bar 201. A friction roller 203 is rotatably mounted on the inner surface of the support frame 202, and the friction roller 203 is frictionally connected to both sides of the battery frame. With this technical solution, the friction roller 203 can be used to facilitate the placement of the battery pack by pushing it between the two sides during pressure testing, thereby reducing the friction generated when the support frame 202 clamps the battery pack.

[0019] like Figures 3-4 As shown, a placement plate 3 is installed on the bottom surface of the inner wall of the main body 1 of the pressure resistance testing device, and multiple guide holes 301 are opened on the upper surface of the placement plate 3. A support block 302 is provided at the bottom of the guide hole 301, and a compression spring 303 is provided on the upper surface of the support block 302. With this technical solution, by setting the compression spring 303, when the pressure plate 102 presses down on the battery pack for testing, the hydraulic machine above the pressure plate 102 will drive the pressure plate 102 to press down. At this time, the elastic compression will cause the friction ball 305 to contract and enter the interior of the guide hole 301, thereby ensuring the stability of the battery pack.

[0020] Furthermore, a sliding block 304 is provided on the upper surface of the compression spring 303, and the sliding block 304 is slidably connected to the inner surface of the guide hole 301. With this technical solution, the friction ball 305 can be guided and slid by the setting of the sliding block 304.

[0021] Furthermore, friction balls 305 are rolled on the upper surface of the sliding block 304, and the friction balls 305 are frictionally connected to the bottom surface of the battery frame. This technical solution, through the setting of the friction balls 305, can drive the battery pack to slide by pushing, so that it can quickly move to the lower pressure point, thereby improving the loading and unloading speed and reducing the burden of going up and down stairs.

[0022] Working Principle: When using this nickel-metal hydride battery pressure testing device, firstly, the battery pack to be tested is placed on the upper surface of the placement plate 3 inside the main body 1 of the pressure testing device. Then, the battery pack is pushed inward by the rolling friction between the friction ball 305 and the bottom of the battery pack. When the battery pack passes the position of the support frame 202 with the friction roller 203, the friction roller 203 will first contact the outer surface of the battery pack to roll. At the same time, the compression spring 204 pushes the support frame 202 to fit and position the battery pack until the battery moves to the designated position. After that, the protective window 101 is closed, and the pressure plate 102 is activated to press down on the battery pack. The battery pack will press down on the friction ball 305. The compression of the compression spring 303 causes the friction ball 305 to slide along the sliding block 304 into the guide hole 301 to avoid rolling friction of the friction ball 305. At the same time, the pressure test is performed on the battery pack. This is the working principle of the nickel-metal hydride battery pressure testing device.

Claims

1. A nickel-metal hydride battery pressure testing device, comprising a pressure testing device body (1), characterized in that, The front surface of the main body (1) of the pressure testing device is provided with a protective window (101), and the top of the inner wall of the main body (1) of the pressure testing device is provided with a pressure plate (102). Both sides of the inner surface of the main body (1) of the pressure testing device are provided with support frames (2), and the surface of the support frame (2) is slidably installed with a limiting slide rod (201). The outer surface of the limiting slide rod (201) is fitted with a compression spring (204), and the end of the limiting slide rod (201) is provided with a support frame (202).

2. The nickel-metal hydride battery pressure testing device according to claim 1, characterized in that, The inner surface of the support frame (202) is rotatably mounted with a friction roller (203), and the friction roller (203) is frictionally connected to both sides of the battery frame.

3. The nickel-metal hydride battery pressure testing device according to claim 1, characterized in that, The bottom surface of the inner wall of the main body (1) of the pressure resistance testing device is equipped with a placement plate (3), and the upper surface of the placement plate (3) is provided with multiple guide holes (301).

4. The nickel-metal hydride battery pressure testing device according to claim 3, characterized in that, A support block (302) is provided at the bottom of the guide hole (301), and a compression spring (303) is provided on the upper surface of the support block (302).

5. The nickel-metal hydride battery pressure testing device according to claim 4, characterized in that, The upper surface of the compression spring 2 (303) is provided with a sliding block (304), and the sliding block (304) and the inner surface of the guide hole (301) are configured to slide together.

6. The nickel-metal hydride battery pressure testing device according to claim 5, characterized in that, The upper surface of the sliding block (304) is rolled with friction balls (305), and the friction balls (305) are frictionally connected to the bottom surface of the battery frame.

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