公开(公告)号：US5821008A

公开(公告)日：1998-10-13

申请号：US726198

申请日：1996-10-04

申请人： Yoshiro Harada ,  Masanori Nakanishi ,  Hidenori Nagura ,  Takuji Ogawa ,  Masahiro Tamai ,  Keiji Fukuhara ,  Masatake Nishio ,  Tomoya Murata

发明人： Yoshiro Harada ,  Masanori Nakanishi ,  Hidenori Nagura ,  Takuji Ogawa ,  Masahiro Tamai ,  Keiji Fukuhara ,  Masatake Nishio ,  Tomoya Murata

IPC分类号： H01M2/12 ,  H01M2/34

CPC分类号： H01M2/345 ,  H01M2/34 ,  H01M2/1241

摘要： An explosion-proof battery includes a cover unit fit into an open portion of a cylindrical cup-like casing. The cover unit is electrically connected to a lead tab extended from an electricity generating unit installed in the casing. The cover unit includes a metal terminal plate of relatively high rigidity, a pressure sensitive plate in the form of a metal plate having relatively high flexibility and vulnerability, a fixing plate of insulating material, an electrical conductive member including an upwardly projecting portion and a base portion, and a ring-shaped gasket of insulating material. The terminal plate and the fixing plate have respective vent holes. The electrical conductive member and the pressure sensitive plate are connected to each other at a connecting portion on the projecting portion of the conductive member by welding. A tip end portion of the lead tab is connected to the base portion of the conductive member. When the pressure sensitive plate expands outwardly due to an extreme increase of the inner pressure, the conductive member is pulled upwardly with the pressure sensitive plate in the vicinity of the connecting portion thereof and is broken to cut off the current path between the lead tab and the terminal plate.

摘要翻译： 防爆电池包括装配在圆筒形杯状壳体的开口部分中的盖单元。 盖单元电连接到从安装在壳体中的发电单元延伸的引线片。 盖单元包括刚性相对较高的金属端子板，金属板形式的压敏板具有相对高的柔性和脆性，绝缘材料的固定板，包括向上突出部分和底部的导电构件 部分和绝缘材料的环形垫圈。 端子板和固定板具有各自的通气孔。 导电构件和压敏板通过焊接在导电构件的突出部分的连接部分处彼此连接。 引线片的前端部与导电部件的基部连接。 当压力敏感板由于内部压力的极大增加而向外膨胀时，导电部件被压敏板在其连接部分附近被向上拉，并被破坏以切断引线片与引线片之间的电流路径 端子板。