Smart heating blanket

摘要

A heating blanket may include a conductor for receiving electrical current and generating a magnetic field in response to the electrical current. A plurality of sleeve segments may be mounted on the conductor in end-to-end relation to one another. Each one of the sleeve segments may be formed of magnetic material having a Curie temperature. The sleeve segments may be inductively heated in response to the magnetic field.

主权项

1. A heating blanket, comprising:
a conductor for receiving electrical current and generating a magnetic field in response to the electrical current; a plurality of sleeve segments being separated from one another and having a tubular or cylindrical shape and being mounted on the conductor and arranged in end-to-end relation to one another and electrically isolated from one another, at least a portion of the sleeve segments being spaced apart from one another and defining gaps therebetween, the magnetic field circling circumferentially around the sleeve segments and passing through the gaps in a manner such that eddy currents in each sleeve segment circulate predominantly along an axial direction of the sleeve segment and are concentrated on both the inner and outer segment surfaces of the sleeve segment; and each one of the sleeve segments being comprised of magnetic material having a Curie temperature, the sleeve segments being inductively heated in response to the magnetic field and having a reduction in inductive heat output upon the sleeve segments becoming non-magnetic when reaching the Curie temperature while maintaining electrical current flow through the conductor.