CN201449314U - Battery leak detection device - Google Patents

Abstract

The utility model relates to the technical field of leak detection devices, in particular to a battery leak detection device. This battery leak detection device is composed of batteries, liquid injection holes, sealed bottles and sealed pipes. The sealed pipes are connected to the batteries and sealed bottles. The sealed bottles are filled with water. The sealed pipes are connected to the sealed bottles through wooden plugs. The battery is provided with an output pipeline on the sealed bottle, and a vacuum gauge and a manual valve are arranged on the output pipeline. The battery leak detection device has the advantages of simple structure, safety and reliability, low cost, and convenient and simple operation process. The battery leak detection device improves the production quality of products and improves production efficiency.

Description

Battery leak detection device

technical field

The utility model relates to a leak detection device, in particular to a battery leak detection device.

Background technique

Electric vehicle batteries are lithium-ion batteries. Each unit of a lithium-ion battery is also divided into a positive electrode and a negative electrode. The positive electrode material of a lithium-ion battery is usually composed of lithium active compounds. The main component of the common positive electrode material is LiCoO2, and the negative electrode is carbon with a special molecular structure. The materials that store electrical energy at the positive and negative electrodes are collectively referred to as active materials. The main function of the electrolyte is to participate in the chemical reaction on the plate, conduct ions and reduce the temperature of the battery reaction. The positive and negative electrodes of the battery are separated by a separator, and the separator of the battery needs to be sealed.

The steel shell battery shell in the enterprise is a square steel shell, which is composed of a steel shell with two ends, a bottom cover, and a top cover. After assembly, it is sealed by laser welding. In the prior art, visual inspection is used first to observe whether there are weld seams, whether there are blisters caused by virtual welding, and whether the weld scars are uniform. However, the results obtained through visual inspection are often inaccurate, resulting in low production efficiency and substandard product quality. .

Utility model content

The technical problem to be solved by the utility model is: in the production process of the product, use visual inspection to observe whether there is a weld seam, whether there are trachoma caused by virtual welding, and whether the welding scar is uniform. Due to inaccurate visual inspection, the production efficiency of the product is low, and the product quality is not good. Up to the standard, a battery leak detection device is provided.

In order to overcome the defects in the background technology, the technical solution adopted by the utility model to solve the technical problem is: the battery leak detection device includes a battery, a liquid injection hole, a sealed bottle and a sealed pipe, and the sealed pipe is connected to the battery and the sealed bottle. An output pipeline is arranged on the sealed bottle, and a vacuum gauge and a manual valve are arranged on the output pipeline.

According to another embodiment of the present invention, it further includes that the sealed pipe is connected to the battery through the liquid injection hole.

According to another embodiment of the present invention, it further includes that the sealed pipe is connected to the sealed bottle through a cork.

The beneficial effects of the utility model: the battery leak detection device has the advantages of simple structure, safety and reliability, low cost, simple and convenient operation, improved product quality, and improved product production efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model;

Among them: 1. Vacuum gauge, 2. Manual valve, 3. Liquid injection hole, 4. Battery, 5. Sealed pipe, 6. Sealed bottle, 7. Cork, 8. Output pipe.

Detailed ways

The utility model is described in further detail in conjunction with accompanying drawing and preferred embodiment now. These accompanying drawings are all simplified schematic diagrams, only illustrate the basic structure of the utility model in a schematic way, so it only shows the composition relevant to the utility model.

Figure 1 is a structural schematic diagram of the utility model, a battery leak detection device is composed of a battery 4, a liquid injection hole 3, a sealed bottle 6 and a sealed pipe 5, the sealed pipe 5 is connected to the battery 4 and the sealed bottle 6, and the sealed pipe 5 passes through the wooden The plug 7 is connected to the sealed bottle 6, the sealed pipe 5 is connected to the battery 4 through the liquid injection hole 3, the sealed bottle 6 is provided with an output pipe 8, and the output pipe 8 is provided with a vacuum gauge 1 and a manual valve 2.

In actual operation, the bottom cover is generally welded first, and when checking whether the bottom cover is sealed, first press the other port on the silicone plate (silica gel is very soft and has good sealing performance), there is a hole in the silicone plate, and connect the battery leak detection device , the output pipeline 8 draws out the gas in the sealed bottle, the vacuum meter 1 shows that it has been vacuumed, the valve is closed, the vacuum degree can be maintained, and there is no air bubble in the bottle, which means that there is no air leakage.

After the top cover is welded, there is only a small hole in the corner of the top cover in the whole shell. The small hole is the liquid injection hole 3. When checking whether the top cover is sealed, connect the liquid injection hole 3 to the battery leak detection device and vacuumize. There will be air in the back body, and the battery 4 and the sealed bottle 6 are connected through the sealed pipe 5. Water is housed in the sealed bottle 6. If there is gas in the battery 4, the sealed pipe inserted into the water will bubble, and the output pipe 8 will extract the water in the sealed bottle 6. Gas, the vacuum meter 1 shows that it is in vacuum. Close the valve, the vacuum degree can be maintained, and if there are no bubbles in the bottle, it means that there is no air leakage. After the test is completed, the liquid injection hole 3 is sealed with glue.

The battery vacuum leak detection device is simple and convenient to operate, simple in structure, safe and reliable, and low in cost. The device improves product quality and production efficiency.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. A battery leak detection device, comprising a battery (4), a liquid injection hole (3), a sealed bottle (6) and a sealed pipe (5), characterized in that: the sealed pipe (5) is connected to the battery (4) and The sealed bottle (6) is provided with an output pipeline (8) on the sealed bottle (6), and the output pipeline (8) is provided with a vacuum gauge (1) and a manual valve (2). 2. A battery leak detection device according to claim 1, characterized in that: the sealed pipe (5) is connected to the battery (4) through a liquid injection hole (3). 3. A battery leak detection device according to claim 1, characterized in that: the sealed pipe (5) is connected to the sealed bottle (6) through a cork (7). 4. A battery leak detection device according to claim 1, characterized in that: said sealed bottle (6) is filled with water.

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