Why is the cooling of electronic devices so important?

Electronic equipment, all away from the topic of heat dissipation. Small to our life and office computers, large to industrial medical and other industries of large equipment, all are unable to escape the problem of heat. So why is cooling so important?

Speaking of heat dissipation, the first to understand why heat, take the computer CPU for example. The CPU is made up of hundreds of millions of transistors, which act as circuit switches. The heat generated when an electric current is connected to a microelement in the CPU is called joule heat. The amount of heat released by the current as it passes through the pn junction, which is the majority, is usually proportional to the frequency, proportional to the square of the current. So the faster the computer, the more work the processor does, the more heat it generates.

How much heat can these chips emit? Some netizens have tested, running large games, unplug the CPU or graphics card heat sink, just removed the smoke, CPU or graphics card was burned.

Some people would say that heat is high and it’s ok to use a material that can withstand high temperatures. In fact, due to the impact of cost, technology and other factors, high temperature resistant materials can not be widely used. And effective heat dissipation effect is far more than the actual high temperature resistant materials.

In addition to the need for computer cooling, other kinds of large electronic equipment, as long as it is consistent with intensive heating need to do heat protection. Especially in the medical and precision instruments, once the temperature is too high to cause deviation of the equipment, the consequences are very serious.

Currently, the heat dissipation means for electronic devices are mainly forced convection of air cooling for heat dissipation. In fact, from the perspective of the development trend and power consumption scale of electronic chips, air cooling heat dissipation has become increasingly difficult. And the emerging water cooling, which opened a new channel, especially in the direction of the successful application of computer cooling, greatly drove the popularity of liquid cooling in the electronics industry. Quiet, efficient, stable, longevity and other characteristics, good to make up for the industry cooling vacancy. In the future, it will be more effective to solve the heat dissipation in the electronics industry.