Why Industrial Switches Are Resistant to High Temperature?

In summer, the sun is scorching hot in most parts of the south, and the temperature in many parts of the country reaches above 30°C. As we all know, most of the working environments of industrial switches are not in air-conditioned rooms, but are often used in very harsh industrial environments. In addition, industrial switches must work continuously and uninterruptedly, which can easily cause industrial switches to overheat! This means that the ethernet switch must be able to withstand high temperatures and maintain stable and reliable normal operation even in harsh environments for long periods of time.

Due to the particularity of the environment in which the industrial switch is located and the particularity of its use (it cannot be shut down), it is a very demanding test for the industrial switch to deal with high and low temperature, mainly in a high temperature environment. So in terms of details, let's take a look at how industrial switches achieve high temperature resistance!

Reasons for the high temperature resistance of industrial switches

1. Industrial grade components

Industrial switches often run all year round as soon as they are turned on, and the operating environment is often harsh. Sand, insects, and humidity will directly affect the operation of fans.The impact of excessive temperature on industrial switches is fatal. Therefore, when designing, the components of the entire equipment must choose industrial-grade components with a wide temperature range, and work in a wide temperature range of -40℃~85℃ to ensure that the equipment is within this temperature range. It can work stably for a long time, so that the device is not afraid of extreme temperatures.

2. Chassis cooling system

Generally speaking, the cooling system of the  industrial switch is divided into two categories. Front inlet, rear outlet and left inlet, right outlet. There is no good or bad between these two cooling systems, because different structural designs form different cooling wind directions. There are also some weirder designs on the market. The fan is installed on the side, which is obviously the front air inlet and the rear air outlet. This design is obviously unreasonable and greatly shortens the service life of the industrial switch.

3. Thermally conductive silicone sheet

The thermally conductive silicone sheet is mainly used for heat conduction and heat dissipation between the motherboard and the casing. The main purpose of selecting the thermally conductive silicone sheet is to reduce the contact thermal resistance between the surface of the heat source and the contact surface of the heat sink. The thermally conductive silicone sheet can fill the gap between the contact surfaces very well; The contact surface between the radiator and the radiator is better and fully contacted, and the face-to-face contact is truly achieved, and the temperature response can reach as small a temperature difference as possible; the thermally conductive silicone sheet not only has insulating properties, but also has the effect of shock absorption and sound absorption.

4. CPU heat sink

Using thermal conductive silicone sheet + CPU heat sink + 4 fans design, the heat dissipation speed is fast, and the heat dissipation effect is still stable after long-term use. When the CPU is working, it will generate a lot of heat. Due to its limited surface area, it cannot dissipate heat in time. We can help it increase the heat dissipation area by attaching an external heat sink to it. You can see that the radiator is basically composed of many fins, that is, the design to increase the heat dissipation area. When the heat of the CPU is conducted to the radiator, it will quickly spread to all the surfaces of the fins; the fan blows air on the fins of the radiator, and the wind can take away the heat.

5. High-strength metal strong heat dissipation

Adopt fanless silent design - wide temperature and wide pressure design, aluminum alloy metal shell super heat dissipation, quiet and noiseless under normal operation, and prevent dust damage to the internal structure of the machine. Especially suitable for environments that require quietness! It is also the most popular cooling method at present! For example, HouShi industrial switches all use high-strength aluminum alloy shells for natural heat dissipation, and the upper two sides are designed with corrugated design, which greatly increases the heat dissipation area of the equipment. influences.

In addition, we learned that when designing industrial switches, in addition to using industrial-grade components and corrugated high-strength bodies with a wide temperature range, they also undergo high and low temperature testing. The industrial switches are stable and reliable in harsh environments, ensuring stable transmission of industrial communications. The above is the secret that industrial switches can withstand high temperature and stable operation. If there are any shortcomings, welcome to add them!