Patent ID: 9543771
Date: 2017-01-10
CPC Classifications: H01F,H02J

Claim:
1. A telescopic transmission cable device, comprising: a cable body and a rectification part, wherein the cable body comprises at least two wires insulated from each other, and one end of the cable body is a built-in end while the other end is an external connection end; when the cable body is coiled up into a coil, the external connection end and the built-in end are respectively connected to two input ends of the rectification part, and the two output ends of the rectification part are respectively connected to a positive electrode and a negative electrode of a power supply to be charged; and when the cable body is in a linear shape, the external connection end is connected to an external device, the two wires of the built-in end are respectively connected to the positive electrode and the negative electrode of the power supply to be charged, and the two output ends of the rectification part are respectively disconnected to the positive electrode and the negative electrode of the power supply to be charged.