Detection tool for rapidly analyzing leakage point

Abstract

The utility model discloses a detection tool for rapidly analyzing leakage points, which comprises a detection table, a detection instrument is mounted on the left side of the top surface of the detection table, two sides of the detection instrument are electrically connected with detection heads positioned on the inner walls of detection boxes through connecting wires respectively, two groups of detection boxes are arranged oppositely, a gas injection mechanism is arranged between the two groups of detection boxes, and the gas injection mechanism is electrically connected with the detection heads through connecting wires. The utility model provides the detection tool capable of rapidly analyzing the leakage points, which solves the problem that the current helium leakage detection process is the main leakage detection mode of the current battery structural member, and adopts the helium leakage detection process to detect whether the sealing performance of the corresponding cover plate structure is intact or not. A helium detection tool detects positive and negative pole columns and an anti-explosion piece at the same time, the position of a leakage point cannot be accurately recognized after leakage detection, and the reason analysis and rectification difficulty is large.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, in particular to a detection tool for rapid leakage analysis. Background Art

[0002] Battery leakage poses certain risks, mainly in terms of damage to equipment and increased risk of fire and electric shock. Possible risks caused by battery leakage include: leaked battery fluid may corrode the internal structure of electronic equipment, causing damage to equipment function or even complete failure; battery leakage may cause internal insulation failure of battery-powered electronic products, indirectly causing fire and other hazards; for battery packs whose output voltage exceeds the safety limit, leakage may cause electric shock accidents; direct contact or inhalation of leaked battery fluid by the human body may constitute a chemical corrosion hazard.

[0003] At present, the inert gas leak detection process is the main leak detection method for battery structural parts. The inert gas leak detection process is used to detect whether the sealing of the corresponding cover structure is intact. The detection tooling detects the positive and negative poles and the explosion-proof plate at the same time. After the leak detection, the leak point cannot be accurately identified, and the cause analysis and rectification are difficult.

[0004] Therefore, it is necessary to provide a detection tool for quickly analyzing leakage points to solve the above technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a rapid leak detection tool to solve the problem that the helium leak detection process is currently the main leak detection method for battery structural parts, and the helium leak detection process is used to detect whether the sealing of the corresponding cover structure is intact. The helium detection tool detects the positive and negative poles and the explosion-proof plate at the same time. After the leak detection, the leak point cannot be accurately identified, and the cause analysis and rectification are difficult.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A detection tool for quickly analyzing leak points, comprising: a detection table;

[0008] A detection instrument is installed on the left side of the top surface of the detection table. Both sides of the detection instrument are electrically connected to the detection head located on the inner wall of the detection box through connecting wires. The detection box is provided with two groups opposite to each other, and a gas injection mechanism is provided between the two groups. The upper part of the gas injection mechanism is connected to the moving mechanism, and the side part is installed on the top surface of the detection table.

[0009] In one embodiment, the gas injection mechanism consists of a gas storage tank, a connecting hose, an interface, a connecting pipe, a gas injection port, and a sealing gasket. The gas storage tank is installed on the top surface of the detection table. A connecting hose is installed on the end face of the gas storage tank. Two connecting hoses are arranged at intervals. The connecting hose is connected to the connecting pipe through the interface. A gas injection port is installed on the side of the connecting pipe facing the detection box. Three gas injection ports are installed at intervals, corresponding to the pole holes and explosion-proof holes of the battery respectively. An electric control valve is installed in the connection point between the gas injection port and the connecting pipe, and a sealing gasket is installed at the rear end of the gas injection port.

[0010] In one embodiment, the connecting hose has a reserved length to accommodate the movement of the connecting pipe.

[0011] In one embodiment, the moving mechanism is composed of a double-headed screw, a mounting plate, a motor, a limit rod, and a moving rod. The double-headed screw is mounted above the detection platform through the mounting plate, one end of the double-headed screw is connected to the motor, and both ends of the double-headed screw are sleeved with moving rods that are meshed and connected thereto. The mounting plate is located below the double-headed screw and is equipped with a limit rod. The limit rod is slidably connected to the moving rod, and the bottom surface of the moving rod is bolted to the top surface of the connecting pipe.

[0012] In one embodiment, the detection box is composed of a bottom box, a top box, a screw hole plate, a fixed screw, an auxiliary hole, a positioning rod, and a pressure head. The bottom box and the top box are both hollow, and sealing strips are installed on the opposite surfaces of the bottom box and the top box. Screw hole plates are installed on both sides of the bottom box and the top box, and a fixing screw is installed in the screw hole plate located on the side of the top box. Auxiliary holes are opened on the sides of the bottom box and the top box close to the gas injection mechanism. The auxiliary holes are semicircular in structure as a whole. After the bottom box and the top box are connected, they are in the shape of round holes, and their diameter is larger than the diameter of the gas injection port. Positioning rods are installed on the inner wall surfaces of the bottom box and the top box. The positioning rods are arranged in a rectangular array, and the spacing between the upper and lower positioning rods is matched with the size of the battery. Several pressure heads are installed on the bottom surface of the upper positioning rod.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model supplies gas to the gas injection ports in sequence by conveying inert gas from a connecting hose through a gas storage tank to the connecting pipe, with the purpose of separately detecting the positive pole hole, the negative pole hole, and the explosion-proof hole. When the above-mentioned single holes are supplying gas, the electric control valves of the remaining two gas injection ports are in a closed state. This detection method can quickly determine that the leakage point is located in a certain part of the battery, thereby improving the detection efficiency and detection accuracy.

[0015] (2) The utility model places the battery into the positioning rod of the bottom box so that the four sides of the battery are in contact with the inner wall surface of the bottom box. After the placement is completed, the top box and the bottom box are installed, and the fixing screw is screwed into the screw hole plate so that the sealing strips of the bottom box and the top box are compressed against each other, thereby sealing the connection between the two. At the same time, the battery is limited inside the bottom box and the top box, and the double-headed screw is driven to rotate by a motor, thereby driving the two moving rods to move toward the direction of the battery respectively, and synchronously causing the connecting pipe to move in the same direction until the gas injection port is inserted into the hole corresponding to the battery, and the sealing gasket stops after the end face of the detection box is in interference contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the utility model;

[0017] Figure 2 It is a detailed diagram of each component of the utility model after being disassembled;

[0018] Figure 3 It is a detailed diagram of the moving mechanism and the gas injection mechanism of the utility model;

[0019] Figure 4 This is a detailed diagram of the detection box of the utility model.

[0020] Among them, the names corresponding to the figure marks are: testing table 1, testing instrument 2, connecting line 21, testing box 3, bottom box 31, top box 32, screw hole plate 33, fixing screw 34, auxiliary hole 35, positioning rod 36, pressure head 37, gas injection mechanism 4, gas storage tank 41, connecting hose 42, interface 43, connecting pipe 44, gas injection port 45, sealing gasket 46, moving mechanism 5, double-headed screw 51, mounting plate 52, motor 53, limit rod 54, moving rod 55. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0022] like Figure 1-Figure 2 As shown, the utility model provides a detection tool for quickly analyzing leak points, comprising: a detection table 1, a detection instrument 2, a detection box 3, a gas injection mechanism 4, and a moving mechanism 5;

[0023] like Figure 1-Figure 2As shown, a detection instrument 2 is installed on the left side of the top surface of the detection platform 1, and the two sides of the detection instrument 2 are electrically connected to the detection head located on the inner wall of the detection box 3 through the connecting line 21 respectively. The detection box 3 is provided with two groups opposite to each other, and a gas injection mechanism 4 is provided between the two groups. The upper part of the gas injection mechanism 4 is connected with the moving mechanism 5, and the side part is installed on the top surface of the detection platform 1. When working, by putting two batteries to be tested into the detection box 3, the pole hole and the explosion-proof hole are in the side, and the moving mechanism 5 drives the gas injection mechanism 4 to move toward the detection box 3, and injects inert gas into the battery. The detection probe of the detection instrument 2 detects whether there is inert gas in the detection box 3 to determine whether the battery has leakage.

[0024] Preferably, in one embodiment, Figure 1-Figure 3 As shown, the gas injection mechanism 4 is composed of a gas storage tank 41, a connecting hose 42, an interface 43, a connecting pipe 44, a gas injection port 45, and a sealing gasket 46. The gas storage tank 41 is installed on the top surface of the test bench 1. The end surface of the gas storage tank 41 is installed with a connecting hose 42. Two connecting hoses 42 are arranged at intervals. The connecting hose 42 is connected to the connecting pipe 44 through the interface 43. The connecting pipe 44 is installed with a gas injection port 45 on the side facing the test box 3. Three gas injection ports 45 are installed at intervals, corresponding to the pole hole and explosion-proof hole of the battery. An electric control valve is installed in the connection point between the gas injection port 45 and the connecting pipe 44, and a sealing gasket 46 is installed at the rear end of the gas injection port 45. When working, the inert gas is transported from the connecting hose 42 to the connecting pipe 44 through the gas storage tank 41, and the gas injection port 45 is supplied with gas in turn, so as to separately detect the positive pole column hole, the negative pole column hole and the explosion-proof hole. When the above-mentioned single ones are supplying gas, the electric control valves of the remaining two gas injection ports 45 are in a closed state. This detection method can quickly determine that the leakage point is in a certain part of the battery, thereby improving the detection efficiency and detection accuracy.

[0025] Preferably, in one embodiment, the connecting hose 42 has a reserved length in order to accommodate the movement of the connecting tube 44 and avoid the connection hose 42 being pulled rigidly.

[0026] Preferably, in one embodiment, Figure 3As shown, the moving mechanism 5 is composed of a double-headed screw 51, a mounting plate 52, a motor 53, a limit rod 54, and a moving rod 55. The double-headed screw 51 is mounted above the test bench 1 through the mounting plate 52, one end of the double-headed screw 51 is connected to the motor 53, and both ends of the double-headed screw 51 are sleeved with moving rods 55 meshingly connected therewith, the mounting plate 52 is located below the double-headed screw 51 and is installed with a limit rod 54, the limit rod 54 is slidably connected to the moving rod 55, and the bottom surface of the moving rod 55 is bolted and connected to the top surface of the connecting pipe 44. When working, the double-headed screw 51 is driven to rotate by the motor 53, and then the two moving rods 55 are driven to move toward the direction of the battery respectively, and the connecting pipe 44 is synchronously moved in the same direction until the gas injection port 45 is inserted into the corresponding hole of the battery, and the sealing gasket 46 stops after interference with the end face of the test box 3. After the detection is completed, the motor 53 drives the above-mentioned components to reset.

[0027] Preferably, in one embodiment, Figure 4 As shown, the detection box 3 is composed of a bottom box 31, a top box 32, a screw hole plate 33, a fixed screw 34, an auxiliary hole 35, a positioning rod 36, and a pressure head 37. The bottom box 31 and the top box 32 are both hollow, and the opposite surfaces of the bottom box 31 and the top box 32 are installed with sealing strips. The bottom box 31 and the top box 32 are installed with screw hole plates 33 on both sides, and the screw hole plates 33 on the side of the top box 32 are installed with fixed screws 34. The sides of the bottom box 31 and the top box 32 close to the gas injection mechanism 4 are opened with auxiliary holes 35. The auxiliary holes 35 are of a semicircular structure as a whole. After the bottom box 31 and the top box 32 are connected, they are in the form of a circular hole, and the diameter is larger than the gas injection port 45. Diameter, the inner wall surfaces of the bottom box 31 and the top box 32 are both installed with positioning rods 36, and the positioning rods 36 are arranged in a rectangular array, and the spacing between the upper and lower positioning rods 36 is matched with the size of the battery, and a plurality of pressure heads 37 are installed on the bottom surface of the upper positioning rods 36. When working, by placing the battery into the positioning rods 36 of the bottom box 31, the four sides of the battery are abutted against the inner wall surface of the bottom box 31. After placement, the top box 32 is installed with the bottom box 31, and the fixing screw 34 is screwed into the screw hole plate 33, so that the sealing strips of the bottom box 31 and the top box 32 are compressed against each other, and the connection between the two is sealed, and at the same time, the battery is limited inside the bottom box 31 and the top box 32.

[0028] Working principle of this utility model:

[0029] During operation, the battery is placed in the positioning rod 36 of the bottom box 31 so that the four sides of the battery are in contact with the inner wall surface of the bottom box 31. After the placement is completed, the top box 32 is installed with the bottom box 31, and the fixing screw 34 is screwed into the screw hole plate 33 so that the sealing strips of the bottom box 31 and the top box 32 are compressed against each other, and the connection between the two is sealed. At the same time, the battery is limited inside the bottom box 31 and the top box 32, and the double-headed screw 51 is driven to rotate by the motor 53, thereby driving the two moving rods 55 to move toward the direction of the battery, so that the connecting pipe 52 is synchronously moved. 44 is displaced in the same direction until the gas injection port 45 is inserted into the corresponding hole of the battery, and the sealing gasket 46 stops after the end face of the detection box 3 is in interference fit. The inert gas is transported from the connecting hose 42 to the connecting pipe 44 through the gas storage tank 41, and the gas injection port 45 is supplied with gas in turn. The purpose is to separately detect the positive column hole, the negative column hole, and the explosion-proof hole. When the above-mentioned individual ones are supplying gas, the electric control valves of the remaining two gas injection ports 45 are in a closed state. This detection method can quickly determine that the leakage point is in a certain part of the battery, thereby improving the detection efficiency and detection accuracy.

[0030] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A detection tool for rapid leak analysis, characterized in that: include: Testing bench; A detection instrument is installed on the left side of the top surface of the detection table. Both sides of the detection instrument are electrically connected to the detection head located on the inner wall of the detection box through connecting wires. The detection box is provided with two groups opposite to each other, and a gas injection mechanism is provided between the two groups. The upper part of the gas injection mechanism is connected to the moving mechanism, and the side part is installed on the top surface of the detection table.

2. A rapid leak point analysis tool according to claim 1, characterized in that: The gas injection mechanism consists of a gas tank, a connecting hose, an interface, a connecting pipe, a gas injection port, and a sealing gasket. The gas tank is installed on the top surface of the test bench. A connecting hose is installed on the end face of the gas tank. Two connecting hoses are arranged at intervals. The connecting hose is connected to the connecting pipe through the interface. A gas injection port is installed on the side of the connecting pipe facing the test box. Three gas injection ports are installed at intervals, corresponding to the pole holes and explosion-proof holes of the battery respectively. An electric control valve is installed in the connection point between the gas injection port and the connecting pipe. A sealing gasket is installed at the rear end of the gas injection port.

3. A detection tool for rapid leak analysis according to claim 2, characterized in that: The connecting hose has a reserved length to accommodate the movement of the connecting pipe.

4. A rapid leak point analysis tool according to claim 2, characterized in that: The moving mechanism consists of a double-headed screw, a mounting plate, a motor, a limit rod, and a moving rod. The double-headed screw is mounted above the detection table through the mounting plate. One end of the double-headed screw is connected to the motor. Both ends of the double-headed screw are sleeved with moving rods that are meshed and connected thereto. The mounting plate is located below the double-headed screw and is equipped with a limit rod. The limit rod is slidably connected to the moving rod, and the bottom surface of the moving rod is bolt-mounted to the top surface of the connecting pipe.

5. The detection tool for rapid leak analysis according to claim 2, characterized in that: The detection box is composed of a bottom box, a top box, a screw hole plate, a fixed screw, an auxiliary hole, a positioning rod, and a pressure head. The bottom box and the top box are both hollow, and sealing strips are installed on the opposite surfaces of the bottom box and the top box. Screw hole plates are installed on both sides of the bottom box and the top box, and a fixing screw is installed in the screw hole plate located on the side of the top box. Auxiliary holes are opened on the sides of the bottom box and the top box close to the gas injection mechanism. The auxiliary holes are semicircular in structure as a whole. After the bottom box and the top box are connected, they are in the shape of round holes, and their diameter is larger than the diameter of the gas injection port. Positioning rods are installed on the inner wall surfaces of the bottom box and the top box. The positioning rods are arranged in a rectangular array, and the spacing between the upper and lower positioning rods is matched with the size of the battery. Several pressure heads are installed on the bottom surface of the upper positioning rod.

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