簡體
Recently, the electric car recharging safety question causes the attention of the industry again. During the charging process of electric vehicles, fire accidents occur frequently, so the safety problems of electric vehicles in the charging process must arouse the attention of the owners.
Safety is the most critical factor in the use of electric vehicles, while charging process is the key to safety and prevention.
Here's a brief analysis of two of the fire cases of electric cars during charging:
Case 1: November 15, 2013, at 3 p.m. local time, Owen county, California home garage parking tesla Model S, a fire broke out in the process of charging, to burn the garage into ruins, but no casualties.
The investigation shows that the electrical fault of the electric car charging system is the factor causing the fire.
Case 2: at 9 PM on February 27, 2015, an electric car parked on the front door of the city's economic and technological development zone caught fire during charging. Fortunately, the fire fighters arrived in time and did not lead to catastrophe.
The survey showed that when electric cars are being recharged, the residents directly use the home socket for charging, without using the charging pile.
Generally speaking, the cause of ignition during the charging process may be:
(1) no charging pile is used, and the home socket is inserted directly, without the necessary electrical protection;
(2) environmental problems (weather, power supply instability, etc.) cause the battery to get out of control and lead to combustion;
(3) failure of main control module of vehicle battery management system (BMS);
(4)...
Is the first in the process of the electric car battery charging pile is also very important safety device, must ensure that the correct and effective use, at present there are some models on the market, charging only rely on a "charging line" for charging. "Charging line" connection at the end of the car, the other end connected to the household tripod socket, "charging line" just act as the grid transmission medium to cars, it doesn't have any protection device and testing system. However, there are great security risks.
Has this kind of car owners have one more question, that is to implement new national standard of charging pile can't to the model, because the outlet lacks corresponding vehicles and pile testing of communication function, can't will need charging information feedback to the charging pile, charging pile does not perform the action, so the electric car can't use higher safety coefficient in line with the new national standard of charging piles with normal charging.
What are the benefits of electric cars using charging piles?
For electric vehicle charging pile, should first have over-current protection, under-voltage protection, leakage protection, output short circuit protection and lightning protection and other protection devices, and there is leakage protector, if appear in the process of pile in standby or battery leakage situation will timely trip, protecting personal safety and vehicle owners in the process of charging protection security, and the process of charging battery has good protection, prevent all kinds of power supply noise pollution and appliances, such as surrounding the effects of high-power electrical appliances start-stop, etc, etc. Only use a line "charging" charge, because of the lack of protection may be unforeseen problems, one of the most dangerous is the cause of vehicle fire burned cars, rechargeable security.
So for larger ownership on the market at present stage alone "charging line" connection charging of electric vehicles, what should use what kind of charging pile, can not only meet the demand of this kind of models of charging, and can have the put protective function of charging pile?
