| 摘要 |
<p>The heat blanket (10) comprises an operative unit (20) and a control/power supply unit (40) which can be electrically connected on one side to the power mains and on the other side to the operative unit (20). The operative unit (20) comprises a foldable sheet (21) and a linear heating element (22) distributed in the sheet (21), with a first and second conductor extending one along the other, separated b a first electrically insulating material and enclosed by a second electrically insulating material; the first and second conductor are electrically connected to the control/power supply unit (40) and have respective first terminals inside the panel which are connected together. The control/power supply unit (40) comprises a power supply group (41) for the heating element (22), intended for the connection to the electric mains, and control means of the power supply for the heating element (22). The control means comprise a cut-off group (45) of the power supply for the heating element, a microprocessor (50), connected to the heating element (22), to the power supply group (41) and to the cut-off group (45), set to detect possible anomalies in the power supply conditions of the heating element (22) and to act on the switch group interrupting the power supply of the heating element when said anomalies occur.</p> |
