| 摘要 |
The device for heating a drinkable liquid comprises a liquid-supply container (9) and an electrical heating element (11) disposed therein. The liquid-supply container (9) comprises a valve which is disposed at the bottom in the base (12) of the liquid-supply container (9). One sealing surface of the valve forms the edge of an opening (14) in the base (12). At the predetermined internal pressure of the container, owing to the outward curvature of the base (12), the valve does not open such that it is automatically reversible. The power delivery to the heating element (11) is designed such that it is interrupted when the pressure in the liquid-supply container (9) is substantially equal to atmospheric pressure. The device can be placed on a collecting tank for the liquid and is characterized in that the second sealing surface of the valve is a disk-like element (15) of resilient material which, in its unloaded state, is substantially conical with the cone tip directed towards the interior of the liquid supply container (9), the element (15) being held at this tip.
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