| 摘要 |
<p>A glass-ceramic plate surface heating unit has a high thermal conductivity layer such as aluminum or copper cast in a recess formed on the underside of the plate, a metal sheathed electrical resistance heating element with an underlying reinforcing member is cast into the high conductivity layer, so that the said layer serves both as a mechanical and thermal coupling means between the heating element and the plate as well as a heat spreader means across the plate. The underside of the plate is shown with a plurality of cavities so as to increase the area of contact between the high conductivity layer and the glassceramic plate.</p> |
