Systems and methods for thermal management of reagent well plates

The thermal management system is divided into modular components: a cooling block with integrated TEC modules for active cooling, a heating block with resistive heating elements for heating, and a thermal transfer block with protrusions for thermal contact. Each module independently controls specific thermal functions, enabling precise temperature regulation while maintaining manageable system complexity through functional segmentation.

The thermal transfer block with protrusions acts as an intermediary component between the cooling/heating blocks and the well plate. The protrusions make direct thermal contact with the well plate bottom, efficiently transferring thermal energy while isolating the complex control electronics from direct thermal exposure, thus achieving precise temperature control without proportionally increasing overall device complexity.

Instead of requiring the entire thermal transfer block surface to be perfectly flat and in contact with the well plate, protrusions are strategically positioned at specific locations on the block. These localized contact points concentrate thermal transfer activity where most needed, achieving high heat transfer efficiency while tolerating greater variations in the overall surface geometry, thus reducing manufacturing precision requirements.

The protrusions are designed with curved or rounded contact surfaces that better conform to the typically curved bottom surface of well plates. This curvature matching maximizes the actual contact area between the protrusions and the well plate, improving thermal coupling efficiency while being more tolerant of manufacturing tolerances compared to flat-to-flat contact requirements.