公开(公告)号：EP0818838A3

公开(公告)日：2001-04-11

申请号：EP97202099.4

申请日：1997-07-08

申请人： SAFT AMERICA, INC.

发明人： Shapiro, David ,  Naing, Htun S.

IPC分类号： H01M2/34 ,  H01M2/12

CPC分类号： H01M2/12 ,  H01M2/1241 ,  H01M2/34

摘要： An explosion-proof valve electrical disconnect assembly incorporates a vent valve contact disk (30) which seals the can of a compact electrochemical cell and which faces a juxtaposed stripper contact disk (28) welded at the center by a weld nugget at a weld point (W), forming a rigid, preferably increased thickness, mass. The underlying stripper contact disk (28) is weakened about the weld point (W), surrounding the weld nugget to ensure pull-through of the stripper contact disk portion immediately adjacent to the weld connection to effect initial electrical separation of the two contact disks. Subsequent rupture of the vent valve contact disk (30) releases high pressure gas internally from the cell. A semi-rigid assembly cup may support a rigid grommet (32) functioning to sandwich the vent valve contact disk and the stripper contact disk facilitated by crimping of the can top (18) about a deformable L-shaped cross-section annular assembly cup (36). A current responsive PTC element (34) forms a second circuit breaker independent of the first mechanical circuit breaker formed by the two contact disks.

公开(公告)号：EP0818838A2

公开(公告)日：1998-01-14

申请号：EP97202099.4

申请日：1997-07-08

申请人： SAFT AMERICA, INC.

发明人： Shapiro, David ,  Naing, Htun S.

IPC分类号： H01M2/34 ,  H01M2/12

CPC分类号： H01M2/12 ,  H01M2/1241 ,  H01M2/34

摘要： An explosion-proof valve electrical disconnect assembly incorporates a vent valve contact disk which seals the can of a compact electrochemical cell and which faces a juxtaposed stripper contact disk welded at the center by a weld nugget at a weld point, forming a rigid, preferably increased thickness, mass. The underlying stripper contact disk is weakened about the weld point, surrounding the weld nugget to ensure pull-through of the stripper contact disk portion immediately adjacent to the weld connection to effect initial electrical separation of the two contact disks. Subsequent rupture of the vent valve contact disk releases high pressure gas internally from the cell. A semi-rigid assembly cup may support a rigid grommet functioning to sandwich the vent valve contact disk and the stripper contact disk facilitated by crimping of the can top about a deformable L-shaped cross-section annular assembly cup. A current responsive PTC element forms a second circuit breaker independent of the first mechanical circuit breaker formed by the two contact disks.

摘要翻译： 防爆阀电气断开组件包括通气阀接触盘，其密封紧凑型电化学电池的罐，并且其在焊接点处焊接在焊接点处的位于中心处焊接的并置的剥离器接触盘，形成刚性，优选地增加 厚度，质量。 底部剥离器接触盘围绕焊点围绕焊点变弱，以确保直接与焊接连接相邻的剥离器接触盘部分的拉直，以实现两个接触盘的初始电分离。 随后的排气阀接触盘的破裂从电池内部释放高压气体。 半刚性组装杯可以支撑用于夹紧排气阀接触盘和通过罐头顶部围绕可变形的L形横截面环形组件杯卷曲而促进的剥离器接触盘的刚性垫圈。 电流响应PTC元件形成独立于由两个接触盘形成的第一机械断路器的第二断路器。