A few days ago, a video of "BYD's new energy vehicle leakage caused the owner's cerebral hemorrhage" circulated on the Internet. According to the content of the video, Mr. Deng, 51 years old in Xinyu, Jiangxi Province, bought a BYD Qinpao Didi, and more than 20 days after buying the car, Mr. Deng was suspected of being electrocuted due to electricity leakage in the car. Since then, the hospital has diagnosed Mr. Deng with a cerebral hemorrhage and is currently being treated in the hospital.
Mr. Deng's family believed that Mr. Deng's sudden cerebral hemorrhage was related to the electric shock he received in the car, and after several negotiations with the local BYD 4S store to no avail, Mr. Deng's daughter posted a video on her personal social platform to ask for help.
BYD said that after testing, it was preliminarily ruled out that the vehicle leakage caused the owner to become ill, and it was not ruled out that the owner suddenly suffered from cerebral hemorrhage and caused numbness in his hands and feet, and he mistakenly thought that he was electrocuted.
Some people say that the car is full of insulators, how can it be possible to leak electricity and cause cerebral hemorrhage, and some people say that the diagnosis certificate is written, which includes the diagnosis of "electric injury". Isn't this proof that the vehicle is leaking?
In this regard, the media asked Xingang Central Hospital in Xinyu City, Jiangxi Province for verification, and a person close to the attending doctor said that the patient's family may have reported that there may be electric injuries, and the young physician on duty did not find obvious electrical injuries during the preliminary examination, but because the non-high-voltage electrical injuries may not have obvious traces, the electrical injuries were also written in the diagnosis in order to be investigated. In the end, he said, the specific diagnosis will be written in the discharge summary, which is the most accurate.
In other words, whether it was an electric injury or not, the hospital did not dare to confirm it, but wrote the electric injury to be investigated in the diagnosis, and finally based on the discharge summary, I didn't expect it to cause so much attention on the Internet.
In fact, in this matter, I tend to think that BYD is not a cerebral hemorrhage caused by high-voltage leakage this time, but a low voltage of 12V at most. Let's not talk about this from other angles, just from a scientific point of view, I don't study physics, there are things that are wrong, you are welcome to advise in the comment area.
First of all, let's say that there are only two voltages on the electric vehicle, one is 400-1000V high voltage, one is 12V low voltage, if it is a high-voltage leakage, the result is definitely not just a cerebral hemorrhage, and the owner will definitely have obvious electrical injuries, and the young doctor on duty did not find obvious electrical injuries during the preliminary examination, if it is a low-voltage leakage, there is a possibility, but low-voltage electric shock will cause cerebral hemorrhage?
Secondly, if it is a high-voltage leakage, the owner can still shout "broken, electrified", and then stop and unbuckle the seat belt by himself, can he still shout for help? And then what did the co-pilot do? You must know that the body-in-white is a good conductor, and the main driver is electrocuted, and it is difficult for the co-driver to be unharmed. And if you are electrocuted by high voltage, there will definitely be no chance to call for help.
In the end, the owner of the car is sitting in the car, and his feet have not yet stuck to the ground, how to form a loop, some people say that as long as there is a voltage difference, it will be fine, but. Zong Lei, head of the power battery business of the National New Energy Vehicle Technology Innovation Center, said in an interview with reporters, "Even if there is leakage, you don't have to worry." After the wire is connected, even if the vehicle leaks, its high-voltage parts and the vehicle are also on the same voltage platform, there is no voltage difference, and there will be no problem of electrical injury. "So, even if it's a leakage, how does a pressure difference form?
If it is a low voltage of 12V, usually we are talking about a safe voltage of 36V or less, and a safe current of 10mA or less. If the voltage is not large and the current is large enough, it is also possible for the person who has been electrocuted to feel the sensation of being shocked.
Take 10,000 steps back, even if it really has a dew point, then under the monitoring, there should be traces, and new energy vehicles will also have a national monitoring platform, BYD can't make such a low-level lie, right?
Therefore, I think this incident can basically rule out the possibility of high-voltage electric shock, considering that the owner himself has third-level hypertension, will there be low-voltage leakage leading to induced cerebral hemorrhage, the above is just speculation, everything still has to wait for the results of the investigation.