Heat blanket
First Claim
1. Heat blanket comprising an operative unit and a control/power supply unit which can be electrically connected on one side to the power mains and on the other side to the operative unit, wherein:
- a) the operative unit comprises;
a foldable sheet,a linear heating element distributed in the sheet, with a first and asecond conductor extending one along the other, separated by a first electrically insulating material and enclosed by a second electrically insulating material, wherein the first and the second conductors are electrically connected to the control/power supply unit and have respective first terminals inside the panel, connected together; and
b) the control/power supply unit comprises;
a power supply group for the heating element, intended for connection to the electric mains,a controller of the power supply for the heating element, characterized in that the controller comprise;
a power supply cut-off for the heating element,a microprocessor, connected to the heating element, to the power supply group and to the cut-off group, set to detect possible anomalies in the power supply conditions of the heating element and to act upon the cut-off group interrupting the power supply of the heating element when said anomalies take place;
said microprocessor being further configured to classify each anomaly detected as a temporary anomaly or as a definitive anomaly; and
said microprocessor being further configured to interrupt the power supply reversibly in the case of a temporary anomaly and to interrupt the power supply irreversibly in the case of a definitive anomaly.
1 Assignment
0 Petitions
Accused Products
Abstract
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 by 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 a microprocessor configured to control 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 (220 and to act on the switch group interrupting the power supply of the heating element when said anomalies occur.
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Citations
20 Claims
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1. Heat blanket comprising an operative unit and a control/power supply unit which can be electrically connected on one side to the power mains and on the other side to the operative unit, wherein:
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a) the operative unit comprises; a foldable sheet, a linear heating element distributed in the sheet, with a first and a second conductor extending one along the other, separated by a first electrically insulating material and enclosed by a second electrically insulating material, wherein the first and the second conductors are electrically connected to the control/power supply unit and have respective first terminals inside the panel, connected together; and b) the control/power supply unit comprises; a power supply group for the heating element, intended for connection to the electric mains, a controller of the power supply for the heating element, characterized in that the controller comprise; a power supply cut-off for the heating element, a microprocessor, connected to the heating element, to the power supply group and to the cut-off group, set to detect possible anomalies in the power supply conditions of the heating element and to act upon the cut-off group interrupting the power supply of the heating element when said anomalies take place; said microprocessor being further configured to classify each anomaly detected as a temporary anomaly or as a definitive anomaly; and said microprocessor being further configured to interrupt the power supply reversibly in the case of a temporary anomaly and to interrupt the power supply irreversibly in the case of a definitive anomaly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification