Field of the invention
First Claim
1. An electric heating device comprising an electric energy source, a resistor heating unit comprising a first material stratum comprising portions of electrically conductive polymer material with PTC properties, said first material stratum having a pair of mutually oppositely arranged major surfaces, in which the polymer material with PTC properties is united with electrode material which electrically connects said electrically conductive polymer material to the energy source, and a regulator unit for regulating current supply to the resistor heating unit, wherein the electric energy source comprises a thin film battery also having a pair of mutually oppositely arranged major surfaces, and wherein said first material stratum is physically connected to said thin film battery such that the energy source and the resistor heating unit form a composed unit in which respectively one each of the major surfaces of said battery and of said first material stratum are turned to face towards one another.
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Accused Products
Abstract
An electric heating device (34) in which is included an electric energy source (45) which is designed as a thin film battery (45). The heating device also includes a resistor heating unit (40) comprising a first material stratum (40) consisting of an electrically conductive polymer material with PTC properties. The resistor heating unit (40) and the electric energy source (45) are disposed adjacent to one another and form a composite unit in which the major surfaces of the first material stratum (40) and thin film battery (45), respectively, face towards one another. Electrodes (42, 43) are connected, by the intermediary of a switch (48), to the poles of the battery (45) and to the resistor heating unit (40).
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Citations
18 Claims
- 1. An electric heating device comprising an electric energy source, a resistor heating unit comprising a first material stratum comprising portions of electrically conductive polymer material with PTC properties, said first material stratum having a pair of mutually oppositely arranged major surfaces, in which the polymer material with PTC properties is united with electrode material which electrically connects said electrically conductive polymer material to the energy source, and a regulator unit for regulating current supply to the resistor heating unit, wherein the electric energy source comprises a thin film battery also having a pair of mutually oppositely arranged major surfaces, and wherein said first material stratum is physically connected to said thin film battery such that the energy source and the resistor heating unit form a composed unit in which respectively one each of the major surfaces of said battery and of said first material stratum are turned to face towards one another.
Specification