Soft electrical heater with continuous temperature sensing
First Claim
1. A soft and flexible heater having a durable construction for incorporation into a plurality of articles, said heater comprising at least one continuous melting fuse, said melting fuse comprising at least one electrically conductive textile fiber, encapsulated by at least one layer of nonconductive means to form at least one continuous heating cable, said at least one electrically conductive textile fiber melts at the temperature above 120°
- C. and below 350°
C. terminating electrical continuity in said heating cable and preventing fire hazard in said soft and flexible heater.
1 Assignment
0 Petitions
Accused Products
Abstract
A soft and flexible heater utilizes electrically conductive threads or fibers as heating media. The conductive fibers are encapsulated by insulating materials, forming continuous heating cables. One or more heating cables can be formed into heaters of various configurations including tapes, sleeves or sheets. Such heaters may be connected in different combinations, in parallel or in series. The heater may contain continuous temperature sensors to prevent overheating and fire. Such temperature sensors can be made of electrically conductive fibers, metal wires or fiber optical filaments. When required by the heater design, the electrically conductive threads/fibers may have a polymer base, which acts as a Thermal-Cut-Off (TCO) at predetermined temperatures. Electrically conductive fibers comprised of such polymer base can melt between 120° C. and 350° C. thereby terminating electrical continuity in the heater.
123 Citations
28 Claims
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1. A soft and flexible heater having a durable construction for incorporation into a plurality of articles, said heater comprising at least one continuous melting fuse, said melting fuse comprising at least one electrically conductive textile fiber, encapsulated by at least one layer of nonconductive means to form at least one continuous heating cable, said at least one electrically conductive textile fiber melts at the temperature above 120°
- C. and below 350°
C. terminating electrical continuity in said heating cable and preventing fire hazard in said soft and flexible heater. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25)
- C. and below 350°
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18. A soft and flexible heater having a durable construction for incorporation into a plurality of articles, said heater comprising:
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at least one continuous heating cable comprising at least one electrically conductive textile fiber as heating means, at least one electronic power control regulator to control temperature and to vary electrical power output in said heater, at least one continuous temperature sensor, electrically connected to said electronic power control regulator to provide a signal of temperature change in said heater.
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26. A soft and flexible heating tape having a durable construction for incorporation into a plurality of articles, said heating tape comprising:
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at least one electrically conductive textile fiber, encapsulated by at least one layer of nonconductive means to form at least two heating cables, said at least two heating cables are electrically connected with each other in series at the end of said heating tape.
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27. A soft and flexible heater having a durable construction for incorporation into a plurality of articles, said heater comprising:
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at least two heating cables each of which is comprised of at least one electrically conductive textile fiber, encapsulated by at least one layer of nonconductive means, said at least two heating cables are sandwiched between at least two strips of nonconductive means, which are attached to each other to hold said at least two heating cables in predetermined place.
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28. A soft and flexible heater having a durable construction for incorporation into a plurality of articles, said heater comprising:
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at least two heating cables each of which is comprised of at least one electrically conductive textile fiber, encapsulated by at least one layer of nonconductive means, said at least two heating cables are sandwiched between at least two sheets of nonconductive means, which are attached to each other to hold said at least two heating cables in predetermined place.
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Specification