Scratch-proof cover plate helium detection clamp

Abstract

The utility model discloses a scratch-proof cover plate helium detection clamp which comprises a connecting plate and a bottom plate. The fixing plate is detachably mounted on the connecting plate, and a lower pressing plate is arranged on the lower surface of the fixing plate; the bottom plate is arranged below the lower pressing plate, a detection groove is formed in the bottom plate, and a sealing ring for supporting the cover plate is arranged on the inner side of the detection groove; the front surface of the lower pressing plate is provided with air pipe joints communicated with the interiors of the detection grooves, and the number of the air pipe joints is equal to that of the detection grooves; by arranging the lower pressing plate, the sealing ring and the fixing plate, helium detection can be conveniently carried out on the lithium battery cover plate, the situation that during traditional helium detection, the cover plate is directly placed on the inner side of the detection groove, and the cover plate may be seriously extruded and damaged is avoided, the safety during detection can be effectively improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model specifically relates to a scratch-resistant cover plate helium detection fixture. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive and negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal require very high environmental standards. Helium detection for lithium batteries is an important testing method, mainly used to test the sealing performance of lithium batteries. This helps to promptly identify and repair potential problems, ensuring the safety performance of the battery during use.

[0003] Existing helium testing fixtures use cylinders to directly press the cover plate to restrict movement during testing. However, during pressing, some parts of the cover plate may suffer rigid pressure scratches, and the sealing environment is not good enough. To address this, we propose a scratch-resistant cover plate helium testing fixture. Utility Model Content

[0004] The purpose of this invention is to provide a scratch-resistant cover plate helium inspection fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a scratch-resistant cover plate helium detector fixture, comprising:

[0006] Connecting plate and base plate;

[0007] A fixing plate is detachably mounted on a connecting plate, and the lower surface of the fixing plate has a pressure plate;

[0008] A base plate is located below the lower pressure plate, and a detection groove is provided on the base plate. The inner side of the detection groove has a sealing ring that supports the cover plate.

[0009] Preferably, the front surface of the lower pressure plate is provided with an air pipe connector that communicates with the inside of the detection slot, and the number of air pipe connectors is equal to the number of detection slots.

[0010] Preferably, the lower surface of the pressure plate is provided with a pressure block that abuts against the cover plate during testing.

[0011] Preferably, the pressing block is "D" shaped.

[0012] Preferably, the sealing ring is "D" shaped, the inner wall of the sealing ring has a protrusion, and the inner side of the protrusion has an installation hole.

[0013] Preferably, the base plate is rectangular, and the detection grooves are evenly distributed in three places along one long side of the base plate.

[0014] Preferably, the lower pressure plate and the fixing plate are fixed by bolts.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This patented device, by incorporating a pressure plate, a sealing ring, and a fixing plate, facilitates helium testing of lithium battery covers. This avoids the risk of significant compression damage that can occur when the cover is placed directly inside the testing tank during traditional helium testing. This device effectively improves safety during testing and allows for helium testing with rotation within 15°, enhancing testing results and increasing the device's practicality. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the endotracheal connector structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the pressing block structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sealing ring structure of this utility model.

[0021] In the diagram: 1. Connecting plate; 2. Fixing plate; 3. Lower pressure plate; 301. Air pipe connector; 302. Pressure block; 4. Sealing ring; 401. Mounting hole; 5. Base plate. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model provides a technical solution: a scratch-resistant cover plate helium detection fixture, comprising:

[0024] Connecting plate 1 and base plate 5;

[0025] The fixing plate 2 is detachably installed on the connecting plate 1, and the lower surface of the fixing plate 2 has a pressure plate 3, which makes it easy to press the cover plate onto the sealing ring 4;

[0026] To prevent the cover plate from contacting and scratching the base plate 5 during compression, and to allow for helium testing of the cover plate on the base plate 5 by rotating it at a small angle later using a thicker sealing ring 4.

[0027] The base plate 5 is located below the lower pressure plate 3, and a detection groove is provided on the base plate 5. The inner side of the detection groove has a sealing ring 4 to support the cover plate, which facilitates elastic support for the battery cover plate to prevent pressure damage and scratches.

[0028] Preferably, the front surface of the lower pressure plate 3 is provided with an air pipe connector 301 that communicates with the inside of the detection slot. The number of air pipe connectors 301 is equal to the number of detection slots, which facilitates the inflation of air onto the battery cover. The detection probe provided on the inner side of the base plate 5 is used to detect whether the gas leaks into the sealing ring 4 under the battery cover.

[0029] Preferably, the lower surface of the pressure plate 3 is provided with a pressure block 302 that abuts against the cover plate during testing, so as to better ensure that the edge of the battery cover plate is in close contact with the sealing ring 4 to achieve a good seal.

[0030] Preferably, the pressing block 302 is "D" shaped.

[0031] Preferably, the sealing ring 4 is "D" shaped, and the inner wall of the sealing ring 4 has a protrusion, and the inner side of the protrusion has an installation hole 401 to facilitate the installation of the sealing ring 4.

[0032] Preferably, the base plate 5 is rectangular, and the detection grooves are evenly distributed in three places along one long side of the base plate 5, which facilitates the inspection of multiple items.

[0033] Preferably, the lower pressure plate 3 is fixed to the fixed plate 2 by bolts.

[0034] The working principle and usage process of this utility model are as follows: In use, the helium detection gas tube is connected to the gas tube connector 301, and then the pressure cylinder is fixed to the connecting plate 1. The circular battery cover to be tested is placed on the sealing ring 4. The pressure cylinder drives the pressure plate 3 to move down through the connecting plate 1 and the fixing plate 2. At this time, the pressure block 302 abuts against the cover, and the helium detection gas flows upward to the cover. The detection probe is placed inside the detection groove corresponding to the bottom of the cover to detect whether there is gas leakage in the cover. The sealing ring 4 of this device has a large thickness and good elasticity, which reduces the pressure and scratches on the cover. Moreover, the cover can be helium detected within a 15° rotation, which improves the detection effect.

[0035] 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 scratch-resistant cover plate helium detection fixture, characterized in that, include: Connecting plate (1) and base plate (5); The fixing plate (2) is detachably installed on the connecting plate (1), and the lower surface of the fixing plate (2) has a pressure plate (3); A base plate (5) is located below the lower pressure plate (3), and a detection groove is provided on the base plate (5). The inner side of the detection groove has a sealing ring (4) that supports the cover plate.

2. The scratch-resistant cover plate helium detection fixture according to claim 1, characterized in that: The front surface of the lower pressure plate (3) is provided with an air pipe connector (301) that communicates with the inside of the detection slot. The number of air pipe connectors (301) is equal to the number of detection slots.

3. The scratch-resistant cover plate helium detection fixture according to claim 1, characterized in that: The lower surface of the lower pressure plate (3) is provided with a pressure block (302) that abuts against the cover plate during testing.

4. A scratch-resistant cover plate helium detection fixture according to claim 3, characterized in that: The pressing block (302) is "D" shaped.

5. A scratch-resistant cover plate helium detection fixture according to claim 1, characterized in that: The sealing ring (4) is "D" shaped, and the inner wall of the sealing ring (4) has a protrusion, and the inner side of the protrusion is provided with an installation hole (401).

6. A scratch-resistant cover plate helium detection fixture according to claim 1, characterized in that: The base plate (5) is rectangular, and the detection grooves are evenly distributed in three places along one long side of the base plate (5).

7. A scratch-resistant cover plate helium detector fixture according to claim 1, characterized in that: The lower pressure plate (3) is fixed to the fixing plate (2) by bolts.

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