| 摘要 |
<p>A signal conversion apparatus having waterproof performance for an aquarium electrical appliance, comprising: an electrical circuit (5) provided thereon with a magnetic sensor (4) for receiving a magnetic signal; a housing enclosing the electrical circuit; and a rotation member (2) capable of rotating about the housing, the rotation member also being provided thereon with a magnet (22). The magnet rotates following the rotation member, and the magnetic sensor receives the magnetic signal of the magnet and then outputs different electrical signals to the electrical circuit. The apparatus can isolate an electrical circuit from water, and through the rotation of a rotation member, make a magnet move close to or away from a magnetic sensor; the magnetic sensor outputs a corresponding signal, and transmits same to the electrical circuit to change the working state of the electrical circuit and thereby realize inputting an operational instruction signal or parameter to the electrical circuit.</p> |
