With the rapid development of modern science and technology, our life is increasingly inseparable from a variety of electronIC products. Many curious friends like to take apart some old or bad electronic products.
At this time, we will find that there are some pcb circuit boards in these electronic products, but the circuits in these PCB circuit boards are too complex, right? Why does the circuit inside the PCB circuit board bend so that ordinary people can't understand it? Can't the PCB circuit board be designed as a straight line? You may not believe it.
After learning junior high school mathematics, we know that the straight line between two points is the shortest. Then why is the PCB circuit board designed to be bent?
First of all, if the circuit in the PCB circuit board is designed as a straight line, the area of the PCB circuit board will increase several times. In this era of pursuing delicacy and compactness, the SMAller the area of the PCB circuit board, the better, or it will directly affect the area of electronic products. It is estimated that people's requirements for electronic products are: in addition to the larger screen, it is better that everything else is smaller and smaller, and the thinner the thickness is, the better.
Secondly, even if we do not care about the size of the PCB circuit board and design the circuit in the PCB circuit board as a straight line, it will also cause other problems. In the PCB circuit board, the circuit must turn. If we design the circuit in the PCB circuit board as a straight line, the turning angle will reach 90 degrees. Because it is easy to generate a large reflection when the circuit turns 90 degrees, such a PCB circuit board can be easily broken in the production process. In this way, it will not only cause waste of materials, but also easily cause quality problems even if the PCB circuit board is successfully manufactured.
The circuit on the PCB circuit board is designed to be curved to ensure the stability of the signal. The design of PCB circuit board is a kind of technical activity, and the stability of signal can be guaranteed only by adopting corresponding design. The chip on the PCB circuit board can work normally only when the signal is not disturbed.
Each zigzag line on the road board represents a different signal. If the circuit on the PCB circuit board is designed as a straight line, it is easy to cause mutual interference between signals, making our electronic equipment unable to work normally. If the signal of our mobile phone is disturbed, it is likely that there is a problem with the PCB circuit board, and such a mobile phone can almost be scrapped.
The PCB circuit board is composed of devices, capacitors, diodes and so on, which constitute a complete circuit. If you are using a horn, after you turn on the switch, the horn will work and make a sound, but as long as the lines on the PCB circuit board are broken, the horn will not work properly, because they are interdependent.
Therefore, although the circuit of the PCB circuit board is designed to be zigzag and irregular, there is great wisdom in it. Do you dare to dismantle electronic equipment after reading?