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Isolation of parallel cell stacks in thermal batteries by a squib switch

阅读:421发布:2023-07-19

专利汇可以提供Isolation of parallel cell stacks in thermal batteries by a squib switch专利检索,专利查询,专利分析的服务。并且A squib switch is used to reliably isolate and transfer power to an external load in the presence of high nuclear and thermal radiations. The squib switch is used in an electrical circuit to remove the fast activate battery from the external load after a long life, slow activate thermal power battery connected in parallel, comes up to voltage. The electrical circuit provides for cell isolation so that the fast rise time of the fast activate battery can be combined with the long life characteristic of the slow activate battery without having the residual internal impedance of the fast activate battery dissipate energy from the power battery.,下面是Isolation of parallel cell stacks in thermal batteries by a squib switch专利的具体信息内容。

1. An electrical circuit for isolating cell stacks of thermal batteries supplying energy to an external load, which comprises: a thermal starter battery of the fast activate type; a thermal power battery of the slow activate type electrically coupled in parallel with said starter battery; and means for electrically isolating said starter battery from said external load and said power battery a short interval of time after initiation of said starter and power batteries thereby preventing said starter battery low internal impedance form dissipating energy from said power battery and supplying said external load with a source of power which has the rapid voltage and current rise time characteristics of said starter battery and the long life characteristics of said power battery.
2. A cell stack isolation circuit as recited in claim 1 wherein said isolating means comprises: a delay squib switch having normally closed contacts for electrically connecting said starter battery in parallel with said power battery; a delay squib match electrically connected in parallel with said starter battery; and an explosive charge operatively positioned intermediate said squib match and said squib switch, said match activating said charge which explosively opens said squib switch.
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