Explosion-proof type charger used for mines

Abstract

The invention relates to an explosion-proof type charger used for mines, and belongs to the technical field of the charging equipment used for mines. The explosion-proof type charger comprises a shell, a cover, a circuit board, a plug socket, a charging port plug and a locking mechanism. The explosion-proof type charger is characterized in that the locking mechanism comprises a casing pipe, a copper casing, a button shaft, a spring, a check ring, a fixation base, a shifting fork, a slider and magnet steel, wherein the casing pipe is arranged on the cover, and is positioned under the plug socket, the middle part of the casing pipe is provided with a storage cavity, the copper casing is arranged at the end of the casing pipe, and extends into the inside of the storage cavity, the button shaft penetrates through the middle part of the copper casing along the axial direction, and the check ring is arranged on the button shaft; the spring is sheathed on the button shaft, one end of the spring is contacted with the copper casing, and the other end of the spring is contacted with the check ring; and the fixation base is arranged on one end of the copper casing, the fixation base is provided with a Hall element of the circuit board, the shifting fork is fixed with the slider, the slider penetrates through the casing pipe, one side of the slider is provided with a first groove and a second groove, the first groove is deeper than the second groove, and the magnet steel is arranged on the other end of the button shaft. The explosion-proof type charger has the advantage of enhancing the safety charging coefficient.

Description

technical field [0001] The invention belongs to the technical field of mine charging equipment, and in particular relates to a mine flameproof charger. Background technique [0002] Coal is an important basic energy in my country. The existing energy endowment structure makes coal account for about 70% of my country's primary energy consumption structure. Because of the special environment of coal mining, the coal mining industry has always been a high-risk industry in my country's industrial and mining enterprises. With the rapid development of the coal industry, lithium-ion batteries have been widely used in coal mine equipment. At present, there are many types and large quantities of handheld terminal devices in mines, and most of them are powered by lithium-ion batteries. The disadvantage of mining lithium-ion batteries is that the requirements for the charger are relatively strict, and the requirements for the protection circuit are relatively high. In the prior art,...

AI Technical Summary

Problems solved by technology

The disadvantage of mining lithium-ion batteries is that the requirements for the charger are relatively strict, and the requirements for the protection circuit are relatively high.

In the prior art, the charging devices used for on-site charging are generally controlled by electronic components. However, this type of charging device has a disadvantage, that is, when the equipment is directly electrically connected to the charger for charging, due to voltage fluctuations, leakage currents or other Due to power factors, electric sparks sometimes occur, and in severe cases, major accidents such as explosions may occur. Therefore, handheld terminal devices used in mines are generally not allowed to be charged directly in the mine. They need to be sent to the charging room for charging at regular intervals, which is very inconvenient and wastes time.

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