Patent ID: 7686657

Claim:
A cigarette lighter adapter with USB connector being insertable to a cigarette lighter socket, comprising: a first casing and second casing engageable with the first casing, the first and second casings made of nonmetal material and cooperatively defining a plug portion and a holding portion; a circuit board accommodated within the engaged first casing and the second casing, the circuit board electrically connected with a contact terminal, a fixed spring contact and a USB connector, the contact terminal located at the plug portion with a part thereof out of a front side of the plug portion, the fixed spring contact including two spaced-apart spring plates being arc-shaped and partially out of opposite sides of the plug portion, and the USB connector disposed on one end of the circuit board with respect to the holding portion; a sleeve being hollow therein with two openings at opposite ends thereof and mounted to the holding portion, the sleeve having a plug hole corresponding to an insertion opening of the USB connector; and a rotating means disposed on and between the sleeve and the engaged first and second casings, the rotating means enabling the sleeve to rotate about the holding portion so as to locate the plug hole of the sleeve facing the insertion opening of the USB connector in an insertable position or to shield the insertion opening.