Barrier and battery module having the same

Abstract

A battery module to accurately position a barrier between unit batteries and improve constructability of a battery module, including at least two unit batteries, and at least one barrier interposed between the unit batteries. The barrier includes a pair of panels facing each other and having protrusions on a surface of each panel that faces the other panel, at least one jointing hole formed in each panel, and a locking pin inserted into the jointing hole to combine the pair of panels with each other.

What is claimed is: 
     
         1 . A battery module comprising:
 at least two unit batteries; and   at least one barrier interposed between the unit batteries, wherein the barrier includes a pair of panels facing each other and having protrusions on a surface of each panel that faces the other panel, at least one jointing hole formed in each panel, and a locking pin inserted into the jointing hole to combine the pair of panels with each other; and   wherein a length of the locking pin corresponds to a thickness of the barrier.   
     
     
         2 . A battery module, comprising:
 at least two unit batteries, each of which includes a guide recess; and   at least one barrier interposed between the unit batteries, the barrier having a pair of panels facing each other, protrusions on a surface of each panel that faces the other panel, and a guide formed on each panel and inserted into the guide recesses.   
     
     
         3 . The battery module according to  claim 2 , wherein the guide is formed on a surface opposite to a surface where the protrusions are formed. 
     
     
         4 . The battery module according to  claim 3 , wherein the guide is forcibly inserted into the guide recesses. 
     
     
         5 . The battery module according to  claim 2 , wherein the guide is formed in a corner of the panel. 
     
     
         6 . A barrier of a rechargeable battery, comprising:
 a pair of panels facing each other;   a plurality of protrusions formed on a surface of each panel that faces the other panel such that the protrusions of each of the panels are adjoined to the protrusions of the other panel;   a jointing hole formed in corresponding positions of each panel;   a locking pin inserted into the jointing hole of each panel to combine the pair of panels with each other; and   wherein a length of the locking pin corresponds with a thickness of the barrier.   
     
     
         7 . A battery module including two or more barriers positioned along a longitudinal length of the module at a substantially constant interval, each barrier comprising:
 two or more pairs of substantially parallel panels extending perpendicular to the longitudinal length of the module;   protrusions protruding from surfaces of each of the panels that face the other panel of the corresponding pair, individual protrusions of each panel having locations that correspond a respective protrusion of the other panel; and   locking pins inserted through each panel of each pair at correspond respective locations of each panel to secure each panel to the other panel of the corresponding pair.   
     
     
         8 . The battery module according to  claim 7 , wherein unit batteries are disposed at surfaces of the panels opposite to the surfaces from which the protrusions protrude. 
     
     
         9 . The battery module according to  claim 7 , wherein the locking pins secure the panels of each pair together such that respective ends of the corresponding protrusions of opposite panels contact each other. 
     
     
         10 . The battery module according to  claim 9 , wherein the ends of the protrusions comprise flat surfaces.