Electrical heating device
First Claim
1. A heating unit for use in a heating device for surface heating of a body to enable maintaining a required temperature of the body, the heating unit comprising first and second elements each made of a material with a specific resistivity in a range of about 0.01-0.1 Ohm·
- mm2/m thereby enabling substantial flatness and flexibility of the heating unit, the first and second adjacent elements being accommodated in spaced-apart planes, being electrically insulated from each other, and having different resistance and different surface areas as compared to each other the first element having the relatively high resistance and relatively low surface area serving as a heater, and the second element which is to be located closer to the body, when the heating unit is in operation, serving as a distributor of heat created by the first element when connected to a power source, the heating unit being arranged so as to provide for compensating a magnetic field created by the heating unit when connected to the power source.
1 Assignment
0 Petitions
Accused Products
Abstract
A heating unit is presented for use in a heating device for surface heating of a body to enable maintaining a required temperature of the body. The heating unit is composed of first and second elements each made of a material with a specific resistivity in a range of about 0.01-0.01 Ohm·mm2/m, thereby enabling substantial flatness and flexibility of the heating unit. The first and second adjacent elements are accommodated in spaced-apart planes, are electrically insulated from each other, and have different resistance and different surface areas as compared to each other. The first element having the relatively high resistance and the relatively low surface area serves as a heater, and the second element, which is located closer to the body, when the heating unit is in the operation, serves as a distributor of heat created by the first element when connected to a power source. The heating unit is arranged such as to provide for compensating a magnetic field created by the heating unit when connected to the power source.
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Citations
23 Claims
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1. A heating unit for use in a heating device for surface heating of a body to enable maintaining a required temperature of the body, the heating unit comprising first and second elements each made of a material with a specific resistivity in a range of about 0.01-0.1 Ohm·
- mm2/m thereby enabling substantial flatness and flexibility of the heating unit, the first and second adjacent elements being accommodated in spaced-apart planes, being electrically insulated from each other, and having different resistance and different surface areas as compared to each other the first element having the relatively high resistance and relatively low surface area serving as a heater, and the second element which is to be located closer to the body, when the heating unit is in operation, serving as a distributor of heat created by the first element when connected to a power source, the heating unit being arranged so as to provide for compensating a magnetic field created by the heating unit when connected to the power source.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A heating device for surface heating of a body to enable maintaining a required temperature of the body, the heating device comprising an electrical heating unit and a power source for supplying a required voltage to the heating unit, wherein:
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said heating unit comprises first and second element each made of a material with a specific resistivity in a range of about 0.01-0.1 Ohm·
mm2/m thereby enabling substantial flatness and flexibility of the heating unit, the first and second adjacent elements being accommodated in spaced-apart planes, being electrically insulated from each other, and having different resistance and different surface areas as compared to each other, the first element having the relatively high resistance and relatively low surface area serving as a heater, and the second element, which is to be located closer to the body, when the heating unit is in operation, serving as a distributor of heat created by the first element connected to the power source; and
said heating unit is arranged so as to provide for compensating a magnetic field created by the heating unit when connected to the power source. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A heating system for heating a body up to a required temperature and maintaining this temperature, the system comprising a heating unit, a power source for supplying a required voltage to the heating unit, and a control unit, wherein
the heating unit comprises first and second elements each made of a material with a specific resistivity in a range of about 0.01-0.1 Ohm· - mm2/m thereby enabling substantial flatness and flexibility of the heating unit, the first and second adjacent elements being accommodated in spaced-apart planes, being electrically insulated from each other, and having different resistance and different surface areas as compared to each other, the first element having the relatively high resistance and relatively low surface area serving as a heater, and the second element, which is to be located closer to the body, when the heating unit is in operation, serving as a distributor of heat created by the first element connected to the power source, the heating unit being arranged so as to provide for compensating a magnetic field created by the heating unit when connected to the power source; and
the control unit connectable to the heating unit and operable to provide continuous control of the temperature of the body. - View Dependent Claims (23)
- mm2/m thereby enabling substantial flatness and flexibility of the heating unit, the first and second adjacent elements being accommodated in spaced-apart planes, being electrically insulated from each other, and having different resistance and different surface areas as compared to each other, the first element having the relatively high resistance and relatively low surface area serving as a heater, and the second element, which is to be located closer to the body, when the heating unit is in operation, serving as a distributor of heat created by the first element connected to the power source, the heating unit being arranged so as to provide for compensating a magnetic field created by the heating unit when connected to the power source; and
Specification