Patent ID: 6921874

Claim:
A rotational speed switching apparatus of a ceiling fan, comprising: a seat body in which a rotary shaft is pivotally disposed, a conductive ring being fitted around the rotary shaft, the conductive ring being stepped to have an upper section, a middle section and a lower section which continuously fall, the widths of the upper, middle and lower sections being respectively 72 degrees of the circumference of the conductive ring, the lower section having a connecting section extending from the lower section to a bottom of the rotary shaft, an interior of the seat body being partitioned into a first receptacle, a second receptacle, a third receptacle, a fourth receptacle and a fifth receptacle at equal intervals, a ring-shaped conductive member being disposed in the first receptacle corresponding to the connecting section of the conductive ring to form a first contact, two conductive leaf springs being disposed in the second receptacle respectively corresponding to the upper and lower sections of the conductive ring to form a second contact, two conductive leaf springs being disposed in the third receptacle respectively corresponding to the upper and middle sections of the conductive ring to form a third contact, a conductive leaf spring being disposed in the fifth receptacle corresponding to the upper section of the conductive ring to form a fifth contact; and a pull rotary assembly for driving the rotary shaft in the seat body to one-way circularly rotate, each time the rotary shaft rotates, the rotary shaft rotating by 72 degrees.