Flexible Thermal Interface Assembly for Differential Expansion

The patent divides the thermal connection into multiple discrete high-conductivity members (such as thermal interface materials or conductive elements) rather than using a single rigid solder joint. This segmentation allows each member to independently accommodate thermal expansion differences, reducing stress concentration while maintaining effective heat transfer pathways between the heated and cooled bodies.

The patent changes the mechanical parameter of the connection medium from rigid (solder) to flexible or compliant (high-conductivity members with appropriate mechanical properties). This parameter change allows the connection to maintain thermal conductivity while accommodating differential thermal expansion through elastic deformation or controlled compliance, preventing stress-induced failure.

The patent employs high-conductivity members that simultaneously perform multiple functions: they provide thermal conduction pathways, accommodate differential thermal expansion through their compliant nature, and serve as the primary mechanical connection between bodies. This multi-functionality eliminates the need for separate structural support components, reducing overall device complexity while maintaining stress resistance.

The patent merges the functions of thermal conduction, mechanical connection, and thermal expansion accommodation into a single integrated component system. The high-conductivity members combine these previously separate functions, eliminating the need for additional connecting components and simplifying the overall assembly while maintaining both thermal performance and mechanical integrity.

The patent uses high-conductivity members made from composite materials or specially formulated substances that combine high thermal conductivity with adequate mechanical adhesion properties. These materials bridge the gap between thermal adhesives (which provide strength but poor conductivity) and solder (which provides conductivity but excessive rigidity), achieving both mechanical connection and efficient heat transfer simultaneously.

The patent changes the material parameters of the connection medium to achieve an optimal balance between mechanical strength and thermal conductivity. By selecting or designing high-conductivity members with specific thermal and mechanical property profiles, the system achieves adequate structural integrity without the substantial thermal conductivity penalty associated with conventional thermal adhesives.