HKDSE Physics – Electric Kettle Simulation

Electric Kettle Autostop
電熱水煲自動斷電裝置

Billy Sir’s Interactive Physics: Electric Kettle Autostop Mechanism.
由中大物理系碩士 Billy Sir 編寫,互動模擬電熱水煲自動斷電原理。

READY
準備就緒
SWITCH HOUSING 開關外殼 Bimetallic Strip 雙金屬片 ON 通電 Water: 20°C 水溫 Strip: 20°C 金屬片溫度
Observation | 觀察:
As steam rises, the bimetallic strip heats up and bends downwards. This mechanical action pushes the red latch down, breaking the electrical circuit and turning the kettle OFF.
當水沸騰產生蒸汽時,雙金屬片受熱並向下彎曲。這個機械動作會壓下紅色卡榫,切斷電路並自動關閉熱水煲。
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