| 摘要 |
<p>A ceiling surveillance camera comprising a base unit 3 and an inner 4 and outer 5 cover; the inner cover 4 having an opening to expose the sensor 61 and the outer cover 5 having an opening to expose the sensor 61; a waterproof wall 33 formed by the base unit around the inner cover and mounting holes 34 outside of this wall. The inner cover may have an opening to expose a connection port 63 and the base unit may have a cable insertion hole 34 such that the cable is curved downwards in free contact with the inner surface of the outer case. The inner cover may have a plurality of heat ventilation holes on its lower surface and may have an annular protrusion 46 which is inserted into the outer case. A water channel or route may be formed between the waterproof wall and the outer casing; the annular ring 46, of the inner casing, diverts water away from the sensor and out of the casing.</p> |
