| 摘要 |
Electrical evapn. device comprises a heating element and a heat exchanger. Heat from the element is fed to the heat exchanger where it is delivered to the substance to be evaporated. The heater element is a PTC element, and is clamped between two electrodes (8). At least one of the electrodes is located near the heat exchanger (12) and forms part of it. The housing pref. contains a wick which is surrounded by the heat exchanger. |
