Electromagnetic-field-shielded heating wire used in bedding and apparatus for driving the same
First Claim
1. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
- a core wire which is formed of a copper or enamel wire;
a first insulating inner coating which is coated on an outer surface of the core wire to encompass an outer circumferential surface of the core wire;
a heater wire which is wound on an outer circumferential surface of the first insulating inner coating;
a second insulating inner coating which is coated on an outer surface of the first insulating inner coating to encompass the outer circumferential surface of the first insulating inner coating including the heater wire;
a ground wire which is formed on an outer circumferential surface of the second insulating inner coating; and
a metallic thin film which is coated on the outer circumferential surface of the second insulating inner coating including the ground wire.
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Accused Products
Abstract
Provided are an electromagnetic-field-shielded heating wire used in bedding and an apparatus for driving the same. The heating wire includes a core wire which is formed of a copper or enamel wire, a first insulating inner coating which is coated on an outer surface of the core wire to encompass an outer circumferential surface of the core wire, a heater wire which is wound on an outer circumferential surface of the first insulating inner coating, a second insulating inner coating which is coated on an outer surface of the first insulating inner coating to encompass the outer circumferential surface of the first insulating inner coating including the heater wire, a ground wire which is formed on an outer circumferential surface of the second insulating inner coating, and a metallic thin film which is coated on the outer circumferential surface of the second insulating inner coating including the ground wire.
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Citations
47 Claims
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1. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
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a core wire which is formed of a copper or enamel wire;
a first insulating inner coating which is coated on an outer surface of the core wire to encompass an outer circumferential surface of the core wire;
a heater wire which is wound on an outer circumferential surface of the first insulating inner coating;
a second insulating inner coating which is coated on an outer surface of the first insulating inner coating to encompass the outer circumferential surface of the first insulating inner coating including the heater wire;
a ground wire which is formed on an outer circumferential surface of the second insulating inner coating; and
a metallic thin film which is coated on the outer circumferential surface of the second insulating inner coating including the ground wire. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
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a core wire which is enamel-coated on a pure iron wire;
a first insulating coating which is coated on an outer surface of the core wire to encompass an outer circumferential surface of the core wire;
a heater wire which is wound on an outer circumferential surface of the first insulating coating and formed of an enamel-coated pure iron (Fe) wire;
a second insulating coating which is coated on the outer circumferential surface of the first insulating coating including the heater wire;
a ground wire which is formed on an outer circumferential surface of the second insulating coating; and
an insulating paper which is wound on the outer circumferential surface of the second insulating coating including the ground wire. - View Dependent Claims (9, 10, 11, 12)
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13. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
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a core wire which is enamel-coated on a copper wire or pure iron wire;
an insulating inner coating which is coated on an outer surface of the core wire to encompass an outer circumferential surface of the core wire;
an insulating paper which is coated on an outer circumferential surface of the insulating inner coating;
a heater wire which is formed of pure iron (Fe) wound on an outer circumferential surface of the insulating paper; and
an insulating outer coating which is coated on the outer circumferential surface of the insulating paper including the heater wire. - View Dependent Claims (14, 15)
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16. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
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a core wire which is formed of a copper wire or pure iron wire;
a first insulating inner coating which is coated on an outer surface of the core wire to encompass an outer circumferential surface of the core wire;
a first insulating paper which is wound on an outer circumferential surface of the first insulating inner coating;
a heater wire which is formed of pure iron (Fe) wound on an outer circumferential surface of the first insulating paper;
a second insulating inner coating which is coated on an outer circumferential surface of the first insulating paper including the heater wire;
a second insulating paper which is coated on an outer circumferential surface of the second insulating inner coating;
a ground wire which is formed on an outer circumferential surface of the second insulating paper;
a metallic thin film which is coated on the outer circumferential surface of the second insulating paper including the ground wire; and
an insulating outer coating which is coated on an outer circumferential surface of the metallic thin film. - View Dependent Claims (17, 18)
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19. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
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a core wire which is formed of a copper wire or pure iron wire;
a first insulating inner coating which is coated on an outer surface of the core wire to encompass an outer circumferential surface of the core wire;
a first insulating paper which is wound on an outer circumferential surface of the first insulating inner coating;
a heater wire which is coated on an outer circumferential surface of the first insulating paper and is formed of pure iron (Fe);
a second insulating inner coating which is coated on an outer circumferential surface of the first insulating paper including the heater wire;
a second insulating paper which is coated on an outer circumferential surface of the second insulating inner coating;
a shield wire which is formed on an outer circumferential surface of the second insulating paper; and
an insulating outer coating which is formed on an outer circumferential surface of the heating wire including the shield wire. - View Dependent Claims (20, 21)
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22. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
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a core wire which is formed of thread;
a heater wire which is formed of a pure iron wire wound on an outer circumferential surface of the core wire;
an insulating inner coating which is coated to encompass the heater wire including the core wire;
an insulating paper which is coated on the outer circumferential surface of the insulating inner coating;
a ground wire which is formed on an outer circumferential surface of the insulating paper;
a metallic thin film which is coated on the outer circumferential surface of the insulating paper including the ground wire; and
an insulating outer coating which is formed on an outer circumferential surface of the metallic thin film. - View Dependent Claims (23, 24, 25, 26)
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27. An electromagnetic-field-shielded heating wire used in bedding, the heating wire comprising:
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a heater wire which functions as a core wire and is formed of pure iron;
an insulating inner coating which is coated on an outer circumferential surface of the heater wire;
an insulating paper which is coated on the outer circumferential surface of the insulating inner coating;
a ground wire which is formed on an outer circumferential surface of the insulating paper;
a metallic thin film which is coated on the outer circumferential surface of the insulating paper including the ground wire; and
an insulating outer coating which is formed on an outer circumferential surface of the metallic thin film. - View Dependent Claims (28, 29, 30, 31)
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32. An apparatus for driving an electromagnetic-field-shielded heating wire used in bedding, the apparatus comprising:
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an electromagnetic-field-shielded heating wire which includes a heater wire and generates heat if power is supplied to the heating wire;
a safety circuit which is automatically cut off if an overvoltage is generated in commercial power;
an electromagnetic wave sensing circuit which senses that an electromagnetic field is generated in the heating wire;
a constant-voltage circuit which rectifies and smoothens the commercial power to supply a DC (direct current) to each unit;
a heating wire driving unit which supplies the commercial power to the heating wire;
a shunt voltage detecting circuit which detects a shunt voltage of the heating wire;
a heat setting circuit which sets heating of the heating wire;
a display unit which displays that power is being supplied to the heating wire and displays that an error occurs in the heating wire; and
a controller which applies a control signal to the heating wire driving unit according to setting of the heat setting circuit and a current of the heating wire detected by the shunt voltage detecting circuit, controls the apparatus to compare the current of the heating wire detected by the shunt voltage detecting circuit with a reference value, if the current of the heating wire is lager than the reference value, to determine that an error occurs in the heating wire, to cut off power supplied to the heating wire and to display that the power is cut off. - View Dependent Claims (33, 34)
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35. An apparatus for driving an electromagnetic-field-shielded heating wire used in bedding, the apparatus comprising:
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a heating unit which generates heat if power is supplied to the heating unit and in which resistance is increased as temperature rises;
a safety circuit which cuts off power supply automatically if an overvoltage is generated to commercial power;
an electric-potential checking circuit which checks that an electromagnetic wave is generated in the heating unit, to allow a terminal to be grounded with the earth through a plug;
a constant-voltage circuit which rectifies and smoothens the commercial power supplied to the heating unit to supply a DC (direct current) power to each unit;
an output circuit which switches supply of the commercial power to the heating unit;
a temperature setting circuit which sets heating temperature of the heating unit;
a temperature detecting circuit which detects temperature of the heating unit;
an overcurrent protecting circuit which, if an overcurrent is generated in the heating unit through the temperature detecting circuit, outputs a control signal to the temperature setting circuit so that power cannot be supplied to the heating unit regardless of the set value of the temperature setting circuit;
a temperature comparing circuit which compares a voltage caused by temperature setting of the temperature setting circuit with a voltage caused by temperature detecting of the temperature detecting circuit and outputs a control signal so that the output circuit can supply or cannot supply the commercial power to the heating unit; and
a time generating circuit which, if the temperature comparing circuit outputs a control signal so that the commercial power cannot be supplied to the heating unit, controls the apparatus to supply the commercial power to the heating unit for a short time so as to detect temperature. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification