How to design a thermal solution for outdoor telecommunication equipment

  With the intensification of competition in the communication industry, in order to reduce investment costs and operating costs, more and more operators choose outdoor communication equipment to build communication networks. There are various heat dissipation methods for outdoor communication equipment. At present, natural heat dissipation, fan heat dissipation, heat exchanger heat dissipation and water cooling heat dissipation are common. How to choose the heat dissipation method of the outdoor cabinet and minimize the impact of the high and low temperature environment on the equipment is a problem that operators are very concerned about.

  The era of 5G commercial use is coming soon. As a fifth-generation mobile communication network, the peak theoretical transmission speed of 5G network can reach tens of gigabits per second, which is hundreds of times faster than the transmission speed of 4G network. Download completed within 1 second. Communication transmission relies on communication equipment, especially high-speed data transmission has higher requirements for communication equipment.

  Speaking of heat dissipation, we must first understand why it heats up, take the computer cpu as an example. CPU is composed of hundreds of millions of transistors, and transistors are equivalent to circuit switches. The heat generated when the current passes through the micro-elements in the CPU is connected, this is Joule heat. The heat released when the current passes through the pn junction, which accounts for the majority, is usually proportional to the frequency and the square of the current. Therefore, the faster the computer operates, the greater the workload of the processor, and the more heat it generates.

  In addition to the need for heat dissipation of computers, other large electronic equipment, as long as they meet the intensive heat generation, need to be well protected for heat dissipation. Especially in communication, medical and precision instruments, once the temperature is too high, the equipment is deviated, and the consequences are very serious.

  As the power of communication equipment increases, air cooling alone cannot meet the cooling demand of communication equipment, in order to solve this demand. A water-cooled heat-dissipating device has appeared. The water-cooled heat-dissipating device mainly includes a water-cooled head and a water flow passage. The water-cooled head is directly attached to the heating element to absorb the heat generated by the heat source.