A power storage charging device with good heat dissipation effect

Abstract

The invention relates to a storage charging device with good heat dissipation effect, comprising a liquid-flow battery stack, a converter and a structure of a liquid-flow battery electrolyte circulating pipeline flowing through a transformer coil in the converter. Through the circulating process of the electrolyte in the liquid flow battery flowing through the internal flow channel of the transformer coil in the converter, direct cooling of the most heat-producing components with minimum thermal resistance is ensured, The converter is cooled with high efficiency and low resistance without extra work, and the waste heat generated in the operation of the converter can preheat the electrolyte to improve the operation efficiency of the battery, so that the converter and the liquid flow batterycan be operated cooperatively and complementarily without extra work. At that same time, the whole char device can play the role of peak shaving of the power network at night or when the power network is idle, thereby reducing the charging cost; It can also be directly charged by renewable energy with intermittent and volatile problems such as solar energy and wind energy to reduce the difficultyof grid-connected renewable energy.

Description

technical field [0001] The invention relates to a charging device, in particular to an electric storage charging device with good heat dissipation effect. Background technique [0002] With the continuous development of new energy utilization technology, new energy vehicles have ushered in great development in the world, especially in China. With the dual support of technology and policy, my country's new energy vehicles, especially pure electric vehicles, continue to grow at a rate of nearly 300,000 per year. The emergence of a large number of pure electric vehicles means that my country's demand for charging piles and charging and swapping stations is increasing. At present, the ratio of domestic charging facilities to new energy vehicles is maintained at about 1:4, which is far from the standardized 1:1. Far. [0003] At present, charging piles on the market mainly appear as power conversion devices. Its structure is relatively simple, mainly composed of three parts: inp...

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Problems solved by technology

[0005] However, the energy efficiency of the flow battery is relatively low during the cycle. Experiments have proved that an appropriate increase in temperature can improve the working efficiency of the battery. At the same time, the heat dissipation technology of the charging pile has always affected the efficient, stable and long-term operation of the charging device.

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