| 摘要 |
A horn switch gear includes a proximity sensor that is mounted on a first surface and a magnet that is mounted on a second surface, at a position facing the first surface. When a module cover is depressed, the first surface moves downward together with the module cover, thereby bringing the sensor close to the magnet. When the distance between the sensor and the magnet becomes less than a specified value, a voltage greater than a threshold is generated. In response to this above-threshold voltage, the sensor generates a horn blowing signal that sounds the horn. Another horn switch gear has a structure in which a horn is activated by depression of the module cover, which depression generates an induced current by the relative movement of a magnet and a magnetic coil.
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