Battery pack and battery compartment for new energy automobile, and battery swap station

Abstract

The invention discloses a battery pack and a battery compartment for a new energy automobile, and a battery replacing station. The battery pack comprises a shell and a plurality of battery cells whichare arranged in the shell and connected in series and in parallel, a sealing cover is arranged at the upper part of the shell, a pressure relief device for reducing the pressure in the battery pack is arranged on the sealing cover, and the pressure relief device is connected with a trip computer on the new energy automobile through a sensing device. The battery pack is provided with the pressurerelief device and the sensing device connected with the trip computer; the state of the battery pack is monitored in real time, the pressure reducing valve is triggered to act when the battery cell ismolten and the volume is expanded due to abnormal overheating of the battery cell, and the sensing device is used for automatically alarming through the trip computer, so that a user can convenientlyhandle and move the alarmed battery pack out of the battery compartment in time, and a deflagration accident is prevented from endangering the whole vehicle; and the charging process of the battery pack is separated from the new energy automobile, electric energy is supplemented by replacing the battery pack, and sustainable driving of the new energy automobile is achieved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a battery pack, a battery compartment and a power exchange station for new energy vehicles. Background technique [0002] Cars have become an indispensable means of transportation in today's society. While automobiles bring convenience to people's travel, the noise and air pollution caused by the extensive use of automobiles has become more and more a public nuisance to human beings. Finding alternative fossil energy to provide power for automobiles has become a hot topic in the economy and society in recent years. Under the guidance of policies and market expectations, a lot of human and financial resources have been invested in the research and development of new energy vehicles. After several years of trial and competition, vehicles powered by ternary lithium batteries and lithium iron phosphate batteries have become the mainstream of new energy vehicles. [0003]...

AI Technical Summary

Problems solved by technology

[0005] 1. The cruising range is short. Although some models claim to have a cruising range of 400 or 600 kilometers, the actual cruising range is only 200-300 kilometers due to the influence of high-speed driving, use of air conditioners, and ambient temperature;

[0006] 2. Some vehicle models have experienced deflagration accidents caused by battery packs, which have brought huge losses to car owners. This is also one of the biggest concerns of car owners and potential car owners;

[0007] 3. Some car owners do not have the conditions to install charging piles, and they are far away from public charging piles, making charging inconvenient;

[0008] 4. A car company tried to replace the battery pack of the electric car for long-distance driving in the highway rest area to achieve the purpose of long-distance driving, but due to technical difficulties and professional operation, it could not be popularized;

[0009] 5. The deflagration incident of electric vehicles is a vehicle accident caused by the quality problems of individual batteries. The existing technology cannot monitor the working status of each battery in real time, and thus cannot detect the damage of individual batteries in time, so as to eliminate the hidden dangers of vehicle deflagration accidents in time;

[0010] 6. Electric vehicles are difficult to start in extremely cold weather and affect the performance of battery power;

[0011] 7. Extreme high temperature weather is prone to deflagration accidents;

[0012] 8. The waterproofing of the existing battery pack is a big problem, and it is easy to leak electricity when it encounters heavy rain or wading;

[0013] 9. The charging time is too long. Although some "fast charging technologies" can charge part of the electricity in a short period of time to ensure that the vehicle continues to drive, most car owners cannot accept the reality of stopping and charging halfway, unless parking charging is like a fuel car. It is as convenient as refueling at a gas station;

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