Switches often need to be used in security engineering. The cooling system of the switch is related to the service life of the switch. However, the standard of heat dissipation of the switch is not known to everyone. How can you quickly identify the heat dissipation system of the switch in one minute? Please take a look at Xiaohong!
First, the chassis cooling system
Generally speaking, the heat dissipation system of the switch is divided into two categories.
1. In front of the wind, the rear air type;
2, the left side of the wind, the right side of the wild type;
these two cooling systems are not good or bad, because the structural design is different, the formation of different cooling wind direction.
There are also some weird designs on the market. It is obviously the front air inlet, the rear air outlet type, and the fan is mounted on the side. This design is obviously unreasonable, which greatly shortens the service life of the switch.
The scientific structural design is the prerequisite for ensuring good heat dissipation.
Second, the thermally conductive silicone sheet
thermal silica film is mainly used in the heat conduction between the motherboard and the shell. The main purpose of selecting a thermally conductive silicone sheet is to reduce the contact thermal resistance generated between the surface of the heat source and the contact surface of the heat sink. The thermal conductive silicone sheet can fill the gap of the contact surface well; with the supplement of the thermally conductive silicone sheet, the heat source can be made The contact surface with the heat sink is better and more fully contacted, and the face-to-face contact is truly achieved, and the reaction at temperature can achieve the minimum temperature difference; the thermally conductive silicone sheet not only has insulation properties but also has the effect of absorbing and absorbing sound.
Third, the CPU heat sink
the optical network uses thermal silicon film + CPU heat sink + 4 fan design, heat dissipation speed, long-term use of heat dissipation is still stable.
Fourth, the switch fan
Switch fans are divided into two categories: ball fans and magnetic levitation fans.
1. Ball fans: use the principle of rolling friction to generate power, but at the same speed level, the noise is the largest and the manufacturing cost is the highest.
2, magnetic suspension fan: the use of electromagnetic conversion technology, the rotor, and the stator remain in contact, so the use of magnetic suspension technology of the fan is small, low vibration, long life.
The optical network uses a magnetic suspension fan with a rotational speed of 7,200 rpm, a long service life, is not easily damaged, and has a first-class quality.
Summary: The heat dissipation system needs to make the scientific and reasonable layout of the heat conductive silicone sheet, heat sink, fan, CPU and other components to ensure good heat dissipation and improve the stability of the switch.
