Emergency safe disengagement device for power battery of electric automobile

Abstract

The invention discloses an emergency safe disengagement device for a power battery of an electric automobile. A battery box with a side door is arranged in an automobile body and is used for placing the power battery, the emergency safe disengagement device comprises an electronic control unit, a signal collection mechanism, a battery electric control disengagement mechanism and an electric control door opening mechanism, wherein the signal collection mechanism, the battery electric control disengagement mechanism and the electric control door opening mechanism are electrically connected with the electronic control unit, a door-opening sensing mechanism and a clamp buckle mechanism are arranged on the battery box, the door-opening sensing mechanism is used for sensing the side door opening and closing action, the clamp buckle mechanism is used for positioning the power battery into the battery box, the door-opening sensing mechanism controls the folding and unfolding action of the clamp buckle mechanism, the electronic control unit analyzes signals fed back by the signal collection mechanism, when the signals are abnormal, the electronic control unit controls the electric control door opening mechanism to open the side door of the battery box, the door-opening sensing mechanism controls the clamp buckle mechanism to be folded after the side door of the battery box is opened, and the electronic control unit controls the battery electric control disengagement mechanism to push the power battery out of the automobile body from the side door.

Description

technical field [0001] The invention relates to a device for quickly and safely detaching a power battery of an electric vehicle from the vehicle body when an abnormal situation occurs. Background technique [0002] With the worsening of the global energy crisis, countries all over the world are trying to find ways to save energy, reduce consumption, recycle energy, and clean and non-polluting energy. As a necessary means of transportation for people's daily life, automobiles consume a lot of energy and cause pollution. A kind of clean energy has become more and more popular, and the world's major automobile manufacturers are also working hard to develop electric vehicles to gradually replace fuel-powered vehicles. [0003] An electric vehicle is a vehicle powered by electrical energy stored in the vehicle's rechargeable battery / battery pack. The power battery is one of the key components of electric vehicles. The working principle of the battery is a device composed of a l...

AI Technical Summary

Problems solved by technology

[0004] The power battery is usually installed in a closed compartment. Due to the limitation of the overall layout of the vehicle, the heat dissipation space is limited, and the ventilation and heat dissipation are not good. Especially in the hot summer or in southern cities, it is easy to cause accidents such as battery fire, explosion, and spontaneous combustion. Cause property loss, the most important thing is the life safety of the crisis personnel, which brings a major safety hazard to the running vehicles

[0005] For this reason, the National Patent Office of China published an invention patent titled "A device for quickly detaching the battery box from an electric vehicle in an emergency" on August 10, 2011, using the BMS control system and the cylinder control system to ensure that the power battery It can be quickly installed and can be quickly detached from the vehicle body in an emergency. However, this patent only aims at detaching the battery box from the electric vehicle when the output current and output voltage of the battery are abnormal. It fails to fully consider other accident factors, and the actual When in use, the cylinder control system has the problem of poor reliability. Once it fails, it cannot guarantee that the battery box can be quickly separated from the electric vehicle.

Images