Lifting battery frame for lifting power changing space of electric vehicle and lifting method

Abstract

The invention relates to a lifting battery frame for lifting power changing space of an electric vehicle and a lifting method. The lifting battery frame is installed at a chassis of the electric vehicle. The lifting battery frame comprises a bottom plate, surrounding plates perpendicular to the bottom plate are separately arranged at the front side and the rear side of the bottom plate, a plurality of power batteries are arranged on the bottom plate between the two surrounding plates, and two lifting devices symmetrically arranged with the central axis of the bottom plate are separately arranged on the bottom plate outside the two surrounding plates; each lifting device comprises a motor, a scissor jack and a ball pin mechanism, a base of each scissor jack is connected with the bottom plate, a rotating shaft of each motor is connected with a screw rod of each scissor jack, and each ball pin mechanism is installed on a saddle of each scissor jack; and the tops of the ball pin mechanismsare connected with an electric vehicle body, and the driving ends of the motors are connected with control systems of the electric vehicle. The lifting method comprises the following steps that whenpower is changed, under the control of the lifting devices, the battery frame is firstly lowered to the ground, and then the electric vehicle is lifted off the ground, so that the power changing spaceis lifted, the power change operation is convenient, and the power change efficiency is improved.

Description

technical field [0001] The invention relates to the field of electric vehicle manufacturing, in particular to a lifting battery frame and a lifting method for improving the battery exchange space of the electric vehicle. Background technique [0002] In order to achieve the purpose of energy saving and emission reduction, electric vehicles powered by power batteries are becoming more and more popular. At present, the power supply methods of electric vehicle power batteries are generally divided into two methods: plug-in charging with the car and battery replacement. Among them, there are two modes of plug-in charging: slow charging and fast charging. The plug-in charging method has the following defects: 1. The initial investment cost of the battery is relatively large, which hinders the popularization of electric vehicles to a certain extent; 2. The charging time is too long, at least 2 to 4 hours, which is comparable to the refueling of ordinary cars Compared with electri...

AI Technical Summary

Problems solved by technology

Using the plug-in charging method has the following defects: 1. The initial investment cost of the battery is relatively large, which hinders the popularization of electric vehicles to a certain extent; 2. The charging time is too long, at least 2 to 4 hours, which is comparable to that of ordinary cars. Compared with electric vehicles, it takes too long to replenish energy, which is very inconvenient and far from meeting people's needs.

However, for small electric vehicles, due to the low chassis, the battery replacement space formed after the battery frame is lowered to the ground is relatively small, resulting in inconvenient operation and low battery replacement efficiency.

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