Method for quickly supplementing electric energy of electric vehicle and power supply unit thereof

Abstract

The invention relates to a method for quickly supplementing electric energy of an electric vehicle and a power supply unit thereof. The method is characterized in that a rechargeable battery pack is arranged on the electric vehicle, and a battery replacement unit, a charging library and a battery library are arranged in a power plant, wherein the rechargeable battery pack comprises a battery box and standardized standard battery units; a battery chamber is internally provided with a plurality of standard battery unit stations; guide rails are installed along with the load direction of the standard battery units; when the standard battery units operate, the standard battery units are arranged in the battery box and can smoothly load and unload in the battery box along the guide rails; after the standard battery units are in place, battery electrodes contact with electrode touching rails which are connected mutually by fixed series-parallel circuits; and the rechargeable battery pack is assembled on the electric vehicle. When it is required to supplement the electric energy, the electric vehicle enters the power plant, so that the standard battery units which are lack of electric energy are replaced by the standard battery units which are charged in the battery box. The power supply unit provided by the invention is convenient to use and reliable in performance, especially applied to quickly supplementing the electric energy for the electric vehicle, and having broad application prospects.

Description

technical field [0001] The invention belongs to the field of transportation and relates to the energy supply of electric vehicles, in particular to a method for rapidly supplementing electric energy of electric vehicles and a corresponding power supply device. Background technique [0002] With the advancement of science and technology and the development of the economy, people's production and living space is constantly expanding, and various vehicles have become an indispensable means of transportation for people to travel. In the past, the power energy of vehicles mainly came from petroleum products and various gases. However, with the decreasing of oil and gas resources and the increasingly serious problems of noise pollution, air pollution and global warming, it is necessary to develop and utilize environmentally friendly alternative energy sources, reduce CO2 Emissions have become the consensus of the people. In this context, electric energy, as an environmentally fri...

AI Technical Summary

Problems solved by technology

There is a common problem in pure electric vehicles powered by rechargeable batteries. The charging time of ordinary vehicle batteries takes several hours, and it cannot quickly complete energy replenishment at gas stations like various oil and gas fuels. This greatly limits the popularity of electric vehicles.

In order to solve the above problems, the patent application No. 200810006771.6 proposes a method and device for quickly replacing large battery packs. These methods generally use so-called high-voltage battery packs or full-voltage battery packs as replacement units. For the convenience of replacement, the weight of the battery Because electric vehicles of different models and brands have different shapes and their internal spaces are quite different, the use of large-scale high-voltage batteries with large dimensions makes it difficult to standardize the specifications and models of batteries objectively, and it is impossible to use a limited number of The type of battery is suitable for most models on the market, and the battery packs of different sizes and shapes also increase the difficulty of building an electric energy supplementary mechanism similar to a gas station, making it very difficult for various electric vehicles to quickly replenish electric energy by replacing the battery. difficult, thus further restricting the popularization of electric vehicles

At present, research on related technologies is still focused on how to quickly charge these large batteries, but at present even fast charging takes about 10-20 minutes, which requires a large number of venues to charge many vehicles at the same time, obviously unable to adapt to a wide range The need to build an electric energy supplementary mechanism similar to a gas station to promote the popularization of electric vehicles

In addition, due to the use of high-voltage and large-capacity batteries, high safety protection requirements are also put forward in various links such as storage and use, which also increases operating costs to a certain extent.

Urban wired trams with matching pantograph grids provide electric energy. Since the erection of grid lines not only takes up a lot of urban space, but also brings about many problems such as affecting city appearance and increasing maintenance costs, its application prospects are even less optimistic.

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