Low-floor pure electric bus

Abstract

The invention discloses a low-floor pure electric bus, and relates to the technical field of automobiles. The low-floor pure electric bus comprises an underframe, a top cover and a plurality of firstbattery packs, the underframe is of a truss structure formed by splicing a plurality of steel pipes, and a plurality of mounting cabins are arranged in the middle section of the underframe; and each first battery pack comprises a plurality of short battery cell single bodies which are connected in series and in parallel, and the first battery packs are detachably mounted in the mounting cabins. The height of battery compartments is fully compressed by adopting short battery cell monomers in a breakthrough manner, so the ground clearance of the underframe is effectively controlled, one-step stepping can be achieved, the underframe is flat and free of steps, the design of a front-to-back horizontal all-low floor in the bus is achieved, the safety and control stability of the whole bus are improved, and urban bus operation is more efficient.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a low-floor pure electric passenger car. Background technique [0002] City buses can be divided into one-stage, two-stage, and three-stage according to the steps of the passenger door. Among them, the city bus with one stage at the front and rear doors is called low-floor city bus, and the one with only one stage at the front door is called low-floor city bus. Entrance city bus. The realization of low-floor urban buses can not only improve transportation efficiency and transportation safety, but also greatly facilitate the public travel of the elderly, the disabled, pregnant women and children. It is an important development direction of urban buses. [0003] Compared with traditional fuel buses or hybrid buses, pure electric buses have the advantages of energy saving and environmental protection, and are currently the mainstream urban buses. At present, most pure electric...

AI Technical Summary

Problems solved by technology

At present, most pure electric buses cannot fully achieve the full low-floor structure in the car, and can only realize the low-floor structure in the area from the front door to the middle door of the vehicle. The reason is that electric buses include power battery packs, cooling water tanks, and power steering pumps. , high-voltage control cabinet and many other components, and the number of power battery packs is large and takes up a lot of space. Therefore, in order to achieve a low-floor design, it is necessary to reasonably change the installation position of the existing components and require the layout of the power battery pack to be very compact. Reliable, which is a major technical challenge to achieve a low-floor design

[0004] In addition, most of the existing pure electric buses arrange the power battery pack in the middle or rear of the frame, and it is inconvenient to disassemble after installation, which is not conducive to later maintenance and repair

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