초록 ▼

The invention is directed to a pressure activated current interrupt assembly for cells, particularly alkaline cells. The current interrupter is located at the closed end of the cell's housing. The current interrupter assembly comprises an electrically insulating member in proximity to the terminal a

The invention is directed to a pressure activated current interrupt assembly for cells, particularly alkaline cells. The current interrupter is located at the closed end of the cell's housing. The current interrupter assembly comprises an electrically insulating member in proximity to the terminal at the closed end of the housing. The insulating member is in physical communication with a deflectable member formed from the cell's housing. When gas pressure within the cell builds up to exceed a predetermined value, the deflectable member deforms causing the insulating member to protrude beyond the extremity of said cell terminal, thereby preventing electrical contact between said terminal and the terminal of another cell or electrical device.

대표청구항 ▼

[ What is claimed is:] [1.] An electrochemical cell comprising a cylindrical housing having an integral surface forming a closed end and a sealable open end opposite said closed end, a pair of terminals each having a surface extremity for electrical contact, wherein one of said terminals is located

[ What is claimed is:] [1.] An electrochemical cell comprising a cylindrical housing having an integral surface forming a closed end and a sealable open end opposite said closed end, a pair of terminals each having a surface extremity for electrical contact, wherein one of said terminals is located at the closed end of the housing, said cell further comprising a current interrupter assembly located at said closed end of the housing, said current interrupter assembly comprising an electrically insulating member in proximity to said terminal at the closed end of the housing and means for causing said insulating member to protrude outwardly from said terminal when gas pressure within the cell builds up to exceed a predetermined value, thereby preventing electrical contact between said terminal and the terminal of another cell or other electrical device, wherein said means for causing said insulating member to protrude outwardly from said terminal comprises an integral member comprising a portion of said integral surface of the housing forming said closed end, said integral member having a deflectable surface responsive to gas pressure build up within the cell, the insulating member being in physical communication with said deflectable surface of said integral member, wherein when gas pressure within the cell builds up to exceed a predetermined value, said surface deflects outwardly causing the insulating member to protrude beyond the extremity of said terminal at the closed end of the housing.