US Patent 7713073 Power adapter

A power adapter includes a housing, a power input portion and a connecting wire. The housing has a reel device mounted therein, and a wire outlet and more than one output portions formed in one side wall. The power input portion is mounted on the housing. A first end of the connecting wire is extended into the housing through the wire outlet and connected with the reel device thereby the connecting wire can be retracted via the reel device, and a second end thereof is connected with an electrical connector which extends out of the wire outlet. Basing on the structure, the connecting wire can be pulled out of the power adapter for use or retracted in the power adapter for collection via the reel device.