Mine power battery

Abstract

The invention discloses a mine power battery, which comprises a charging main circuit, a detection circuit, a phase shifting pulse controller and a main control unit, wherein the detection circuit, the phase shifting pulse controller and the main control unit are respectively connected with the charging main circuit, the main control unit is based on a single chip microcomputer, the charging main circuit consists of a rectification circuit and a high-frequency direct current conversion circuit, and the main control unit detects a work state of a charger through the detection circuit, gives out charging control signals through the phase shifting pulse controller, completes the detection and the control on the output current and the voltage and realizes the control on the storage battery charging process. The mine power battery has the advantages that the safe and intelligent charging on a mine high-capacity lithium ion battery can be completed, the step for replacing the traditional mine lead-acid storage battery with the mine lithium ion battery can be promoted, the size is small, the weight is light, and the miniaturization and the light weight of the charger can be realized; under the condition of the same power, the size can be reduced to 1 / 3 of the original value, and the weight can be reduced to 1 / 4 of the original value.

Description

technical field [0001] The invention relates to a battery charger, in particular to a mining power battery. Background technique [0002] Lithium-ion battery is a new type of high-energy battery successfully developed at the end of the 20th century. Due to its stable discharge voltage, wide operating temperature range, low self-discharge rate, and pollution-free, lithium-ion batteries have gradually replaced lead-acid batteries and become the mainstream of batteries. Lithium-ion power battery refers to a lithium-ion battery with a capacity of more than 3Ah. Compared with nickel-metal hydride, lead-acid, and nickel-cadmium batteries, it has incomparable advantages in terms of energy, volume, life, and environmental protection. Favored by people. The lightweight high-frequency intelligent charger, combined with the intelligent battery management system, is a device composed of power electronics technology, microcomputer control technology, and detection technology. It is born...

AI Technical Summary

Problems solved by technology

[0005] 2. Lithium-ion power batteries have not been used in coal mine electromechanical power equipment so far, and the application potential of lithium-ion power batteries in coal mines is huge

[0016] This charging scheme is straightforward and simple in electric energy conversion, directly rectified from DC to AC, and at the same time, the addition of a transformer effectively realizes the electrical isolation of the input and output of the system. However, there are two shortcomings in this charging scheme. First, according to the structure of the transformer It can be seen from the principle that the addition of power frequency transformers increases the volume and weight of the entire charging equipment to a certain extent.

However, the addition of power frequency transformers in the main circuit and the addition of filter inductors on the DC side greatly increase the volume and weight of the equipment, making it difficult to install, transport and disassemble

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