Peltier Current Leads with conical configuration

•We offer a new configuration for Peltier Current Leads in order to reduce the heat leak into cryogenic systems.•The new configuration is conical-shaped, taking advantage of the heat flow dependence in the current lead’s cross-section.•We used multi-physics simulations in order to prove the new idea and showed additional 4% in power saving.

Current leads in cryogenic systems are a major heat source which eventually affects the entire system. It has been shown in recent years that Peltier elements are useful in reducing incoming heat into the cold system. In this article we present a new tapered cone-like configuration of the Peltier Current Leads which increases the power saving. This configuration is compared to the standard cylindrical configuration utilizing advanced ANSYS simulations. The simulations show an additional power saving of 4% when using the tapered lead configuration.