| 摘要 |
A knob module is set on a circuit board of an electric device and comprises: a pedestal fixed on the circuit board with a plurality of interference parts and a pivotally connecting part; a rotative body with a plurality of pivotally connecting bodies corresponding to the pivotally connecting part and a plurality of interference bodies corresponding to the interference part, the rotative body is connected to the pedestal by pivotally connecting the pivotally connecting bodies with the pivotally connecting part, the interference bodies are interfered with the interference part, respectively; and, an elastically contacting piece is fixed on the rotative body, a first contacting part and a second contacting part of the elastically contacting piece are situated on the outer and inner circle of the pivot rod, the first contacting part and a second contacting part are electrically connected to corresponding places of the circuit board.
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