March 21, 2022

Challenges in Avionics Thermal Management and Solutions

Avionics Thermal Management Solutions and Challenges

Thermal management is a crucial element in ensuring the effectiveness and lifetime of an avionic system. Like other electronic systems, avionics systems typically reach incredibly high temperatures during regular operation, limiting the components’ lifetime and efficiency while placing stress on PCBs. As mechanical systems replace electronic systems, the new systems need a design to withstand high mechanical and thermal demands.

Those systems use less power, mass, and volume while simultaneously integrating various functionality. Creative thermal management will not only solve extreme temperature issues but provide engineering opportunities for designers of PCBs and electromechanics.

The goal of thermal management is to transfer heat away from critical components. During the process, heat dissipates into the external environment. Different active and passive heat transfer techniques make up a part of thermal management. Natural convection efficiently removes high heat and keeps crucial components within operating limits.

Thermal Management Challenges in Avionics and Military Electronics

The significant challenges that plagues electronic and cooling systems in avionics and the military are the need to efficiently transport heat away from systems while maintaining low power and weight. Passive cooling techniques take heat away from hot components at the board level. Heat is removed from a high-temperature system and moved to cooler areas at the cooling system level.

Aerospace and Defense Standards

Aerospace and defense standards conform to a strict design and manufacturing standard while designing avionics and defense systems. Some of the standards that meet quality, manufacturability, and reliability as specified by relevant organizations include IPC, SAE, and ISO.

MIL is another standard that conforms to functionality and reliability in an avionic system. It is also essential to ensure that the thermal management system meets high standards, relying on a highly skilled and experienced service provider to provide optimal thermal management solutions.

Options for Cooling

There are several cooling options available to dissipate heat generated by UAV electronics. Some of these include heat sinks, fans, and forced air systems.

Forced and Natural Air Convection

  • Here, the air flows freely inside the system’s vent through natural convection or with fans.

Radiant and Passive Heat Sinks

  • Heat sinks provide relief from the heat by using cold metal plates containing cooling fans.

Contact Getec Today

By contacting a reliable thermal management company like Getec, you will be in a better position to handle thermal management challenges. The best way to reach Getec and receive a service consultation is by calling (888) 999-8499 or emailing