Patent ID: 8580423

Claim:
A battery pack comprising: a plurality of unit batteries; at least one bus bar electrically connecting electrode terminals of unit batteries of the plurality of unit batteries; and a bus bar holder comprising: a holder body extending in a lengthwise direction; and at least one bus bar receiver on the holder body and mounting a respective bus bar of the at least one bus bar thereon, the at least one bus bar receiver having at least one connection hole formed therethrough, wherein the at least one bus bar is connected to an electrode terminal of the electrode terminals through the at least one connection hole, wherein the holder body comprises a first portion extending in the lengthwise direction and a second portion extending in the lengthwise direction and being substantially perpendicular to the first portion, the at least one bus bar receiver comprises a first outer surface on the first portion of the holder body and a second outer surface on the second portion of the holder body and being substantially perpendicular to the first outer surface, and the at least one connection hole is formed through the first outer surface, and wherein the at least one bus bar receiver comprises: a support hook protruding from the first outer surface and coupling the at least one bus bar to the at least one bus bar receiver and supporting the at least one bus bar in a first supporting direction substantially perpendicular to the lengthwise direction; and a protrusion protruding from the second outer surface and supporting the at least one bus bar in a second supporting direction substantially perpendicular to each of the lengthwise direction and the first supporting direction.