摘要 |
The present invention provides a heating element (L) formed as a laminate including a thermally conductive substrate (1) having a first surface coated at least in part with an electrically insulating coating layer (2). The electrically insulating layer is backed with an electrically resistive layer (3), formed of a non-conducting matrix material that is loaded with conductive material to allow current to be passed through the resistive material to generate heat which can be conducted out through the thermally conductive substrate (1). An electrically and thermally insulating layer (6) backs layer (3) and direct heat through the second surface and to provide support and encapsulation to the resistive element of the system. |