Provided is a battery pack in which a terminal stand having electrode terminals of battery modules inserted and connected thereinto is formed at one side of a sub plate in which the battery modules are seated, such that the battery modules are easily electrically connected to each other and are attachable and detachable.
1. A battery pack comprising:
a plurality of socket terminals having a plurality of elastic contactors extendedly formed at one side of a cylindrical body thereof so as to be spaced apart from each other by a predetermined distance in a circumferential direction;
a plurality of sockets enclosing outer sides of the socket terminals and coupled to the socket terminals so as to be closely adhered thereto;
a plurality of flexible bus bars having both sides coupled to a pair of sockets;
a case having the socket terminals, the sockets, and the flexible bus bars accommodated therein and fixed thereto;
a sub plate having the case coupled thereto; and
a plurality of battery modules seated in the sub plate and having electrode terminals protruding from one side thereof, the electrode terminal being closely adhered and coupled into the socket terminals so as to be inserted into the socket terminals to thereby be electrically connected thereto.
2. The battery pack of claim 1 , wherein the sub plate has a support part formed so as to support an opposite side to a side of the case to which the battery modules are closely adhered.
3. The battery pack of claim 1 , wherein the case has a plurality of accommodating parts formed therein by partition walls partitioning an inner portion thereof, and a pair of socket terminals, a pair of sockets, and the flexible bus bar are accommodated in and fixed to each of the plurality of accommodating parts.
4. The battery pack of claim 3 , wherein the case has seating parts formed at each accommodating part thereof so that both sides of the flexible bus bar are seated and has fixing protrusions protruding from both sides of an inner portion of the accommodating part, and the flexible bus bar has cut parts formed therein so as to correspond to the fixing protrusions, such that the flexible bus bar is closely adhered and fixed to the seating parts by the fixing protrusion.
5. The battery pack of claim 1 , wherein the battery module has a groove or a protrusion at one side thereof so as to be attached and detached.