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US 6,660,977 B2Granted
Electrical heating plate structure
OwnerShu-Lien Cheninventor
Life of this patent
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Abstract
The present invention is to provide an electrical heating plate structure, including an insulating plate, and an electrically conducting plate mounted on the insulating plate. The electrically conducting plate includes multiple heat emitting sections. Each of the heat emitting sections has different radial widths, so that each of the heat emitting sections has radial cross-sectional areas different from each other, thereby capable of controlling a temperature distribution of each region of the electrical heating plate structure.
Claims8
An electrical heating plate structure, comprising:
- an insulating plate;
- and
- at least one electrically conducting plate mounted on the insulating plate;
- wherein, the at least one electrically conducting plate includes a plurality of heat emitting sections,
- each of the heat emitting sections has a longitudinal length with different radial widths,
- the heat emitting sections have radial cross-sectional areas different from each other, thereby capable of controlling a temperature distribution of each region of the electrical heating plate structure, and
- the radial width of a mediate portion of each of the heat emitting sections is gradually increased from two sides of the insulating plate toward a central portion of the insulating plate.
4 more elements
Dependencies are inferred from the claim text.