Thermocycling device having a thermocycler module with a thermal switch, method of cooling a heating block in a thermocycler module of a thermocycling device and analytical apparatus

摘要

The thermocycler module (10) for heating and / or cooling of a thermocycling device comprises a thermal switch (16), a heating block (12) and a heat sink (14). The thermal switch (16) comprises a thermoconducting liquid (68), e.g. a magnetic fluid (70) or a liquid metal, and a stimulating unit (64), e.g. a magnetic unit (66) or a Lorentz-force unit, for moving the thermoconducting liquid (68). The movement of the thermoconducting liquid (68) provides, in an on-state of the thermal switch (16), a thermal connection between the heating block (12) and the heat sink (14).