Patent ID: 9006922
Filing Date: 2015-04-14
Classification: B60L,Y02T

Abstract:
1. A power supply apparatus for an electric bicycle, comprising: a battery pack comprising a plurality of bare cells and a protection circuit module electrically connected to the bare cells; a keybox connected to the battery pack through a wire and configured to control on/off operations of the power supply apparatus; and a case configured to receive the battery pack and the keybox, wherein the keybox comprises: a key set configured to receive a key cylinder that is configured to move forward or backward according to the rotation of a key inserted into the key box; a contact terminal that is movable by a shaft adjacent to the key cylinder and includes a first plurality of sub-terminals having different polarities from each other; a terminal base including at least one terminal which is connectable to and detachable from the sub-terminals so as to control the on/off operations; a keybox case configured to receive the key set, the contact terminal, and the terminal base; and a fixing cover configured to fix the terminal base to the keybox case, wherein the terminal base has a plate shape with a polygonal periphery surface at least part of which contacts an inner portion of the fixing cover.