Anordning vid temperaturreglering

摘要

The invention tackles the problem of controlling the temperature of a heat-generating object (15) so that the temperature of the object (15) does not exceed a predetermined maximum value or fall below a predetermined minimum value when the temperature of a surrounding region (18) varies within an interval. A device (1) comprises a heat exchanger (17) for emitting heat to the surrounding region (18) and a container (2) containing a medium (11). The container (2) is thermally connected to the object (15) as well as to the heat exchanger (17). When the temperature of the surrounding region (18) exceeds a first value, the medium (11) has low viscosity, and heat generated by the object (15) is transported in the container (2) in an effective way from the object (15) to the heat exchanger (17) by natural convection in the medium (11). The medium (11) is chosen so that the natural convection is mainly prevented when the temperature of the surrounding region (18) falls below a second value. The heat generated by the object (15) is then transported less effectively in the container (2) from the object (15) to the heat exchanger (17) mainly by thermal conduction in the medium (11).