Netizen Wskani said that X60 TV super television use 1 hours after the "explosion"

Recently, a Netizen Wskani said, the X60 Super TV, which I just purchased, used 1 hours later to "explode", and the response was: The fault of the Super TV is a single component on the power board failure rather than the "explosion"; Liang, the vice president of music and television, also said that from the product's hardware perspective, Unlike CRT TVs, LCD TVs have no components that cause explosions. But after the incident, the user in the audience forum published related posts were deleted, the initial use of the account was also sealed.

The public is right, and the woman is reasonable. So, is there going to be an explosion in the TV? What is the "explosion" of video TV?

What exactly is the "TV explosion"?

In fact, the report on the "TV explosion" has a long history. The small weave found a Web page of the last century:

"TV explosion" from the CRT TV era, CRT TV, the most important component of a vacuum tube, its glass shell under the pressure of the atmosphere, in the presence of production defects or external forces may burst (note that this is said to burst rather than explode, Because an explosion is generally referred to as a closed system in the event of rapid physical changes or chemical reactions, the energy of the system itself by the explosion of gas explosions, we usually say "TV explosion" generally refers to the CRT vacuum tube burst. In addition, the television may also be due to poor heat, internal short circuit or suffered a lightning tube burst or heated fire, resulting in a tube burst, but for users, usually the above unified use of "explosion" to describe.

At present, most of the TVs we can buy in the market are LCD TV and LED TV, the latter's actual name should be called "LED Backlight LCD TV", that is, LED light source instead of the traditional lamp, and the panel is the LCD panel, in short, is in the middle of two layers of glass sandwiched between a layer of liquid crystal, and the liquid crystal itself is not going to explode. So most of the stories we hear about "TV explosions" are short circuits, fires, and explosions caused by component problems. For example, the "music video super TV Explosion", the official view of the "Power Plate on the failure of individual components", combined with the official post of Weibo and users post content, we know is the capacitor "explosion". So why does the capacitor "explode"?

Why did the capacitor explode?

The power loss of the capacitor has the following formula:

Power Loss = 2πfcv2

The formula shows that the power loss of the capacitor is proportional to the square of the voltage. When the operating voltage of the capacitor increases, the temperature rise of the capacitor is increased, even the heat balance of the capacitor is destroyed. And for our common electrolytic capacitors, electrolytes for organic solvents or weak acid salts, this capacitor long-term work at a higher temperature, the solution is very easy to evaporate, leakage, high pressure may even be instantaneous gasification, resulting in internal volume expansion. The electrolyte capacitance is structured to place a sheet of metal on both sides of the paper soaked in the electrolyte, and then wrap it around, so that when the internal volume expansion is not released in time, it will explode like a firecracker. Of course, this situation, and capacitance overheating degree, electrolyte temperature, boiling degree of different, the tightness of the package will lead to from the cross cracks inside the degree of the slurry.

From hindsight, the official release of the micro-blog Pictures look, the accident of the TV front and back intact, power supply board capacitance "Cross protection line was triggered after the rupture, there is electrolyte leakage." The use of 450v/68μf is a large capacitor, if suddenly burst into the words, sound or more frightening, which is why Wskani will use the "explosion" to describe the reasons.

"TV explosion" VS "plane crash"

Things are basically clear, why are there disputes between the two sides?

If I ask the TV manufacturer: What do you think if the TV set has been penetrated by a capacitor because of faulty components or mains voltage?

99.99% of the TV manufacturers must say: This is not quite normal thing ah, change it.

Another way to ask, if I am in Huaqiang north to stop a person, ask him: if the TV because of component flaws or voltage instability, resulting in a capacitor inside is penetrated, how do you think?

Say it!

Well, what do you think if there's something in your TV set exploding like a firecracker?

I think this man must be outraged: Ask me what I think? I bought a TV, not a firecracker! I'm not finished with him! This TMD murder!

This is the biggest difference between the technology and the consumer from the perspective of experience: The user's concern for their own security is the key to the event.

One joke said: Mathematicians around the world are not going to buy lottery tickets because they know the probability of being killed by a car on the way to buy a lottery ticket is much higher than the jackpot. Lottery jackpot is probably a few one out of 10,000, but such a small chance there will be so many people flocking, it is because every time the jackpot, there will be a variety of reports, which will cause people to the "jackpot" probability intuition deviation. Another example is aircraft, the rate of accidents in aircraft is probably between one out of 10,000 and two, from the probability that this than other vehicles or other accidents caused by the death rate is lower, but precisely because the aircraft in case of accidents will cause serious consequences and huge property losses, So the proportion of media coverage of aircraft is much higher than other accidents and accidents, which has led many to feel that "flying is not safe".

Back to the "TV explosion" this matter, in many television sets caused by the burst, fire accident often will cause huge losses to users, which also became the media like to report content. And many of their peers, in pursuit of results, tend to have images that are not relevant to the event itself, but are scary (such as this article), thus increasing the user's panic over the "TV explosion". The user's understanding of the "TV explosion" was also deep-rooted, as in 2009, Jackie Chan said in an interview at the Boao Forum for Asia that "I'm going to buy a TV set, I'll buy Japan, and China's going to explode." So even if the "picture tube explosion probability under one out of 10,000", but for users of the effect is and the plane crash of the user's psychological impact is similar.

Any equipment will fail, but for the music, it should be from the consumer point of view, improve product safety performance. As a netizen comments:

"If the use of solid-state capacitors, there will be no such thing as a slurry, home appliances itself to take into account the electricity environment in the summer of China, why not design into a wide?" Even if the quality of the power supply is too poor, it should be the fuse of the TV power supply module and not directly damage the components on the motherboard. Of course, wide design, and even lightning protection design, each process needs to increase costs, as for the cost of such a "high" in these areas are generally not see but very important parts such as electric safety above Jerry, design shrinkage, we weigh on the line. ”

From a technical point of view, this "video explosion" may be a trivial matter, but from the user experience and public relations, this is a potential impact on user trust and the company has a negative impact on the event. A straw will not crush the camel, but if it is not handled properly, any straw will become the fuse that crushes the camel.