US 11,721,504 B2
Pyrotechnical disconnection unit, system for electrically charging an electric energy cell, mobile device and charging device
Oliver Sax, Weiherhof (DE); Ulrich Bley, Fuerth (DE); and Andreas Winter, Fuerth (DE)
Assigned to RUAG AMMOTEC GMBH, Fuerth (DE)
Appl. No. 16/638,015
Filed by RUAG Ammotec GmbH, Fuerth (DE)
PCT Filed Aug. 13, 2018, PCT No. PCT/EP2018/071934
§ 371(c)(1), (2) Date Feb. 10, 2020,
PCT Pub. No. WO2019/030415, PCT Pub. Date Feb. 14, 2019.
Claims priority of application No. 10 2017 118 416.3 (DE), filed on Aug. 11, 2017; and application No. 20 2018 101 783.7 (DE), filed on Mar. 29, 2018.
Prior Publication US 2020/0243290 A1, Jul. 30, 2020
Int. Cl. H01H 39/00 (2006.01); H02J 7/00 (2006.01)
CPC H01H 39/006 (2013.01) [H02J 7/0031 (2013.01); H01H 2039/008 (2013.01)] 24 Claims
OG exemplary drawing
 
8. A pyrotechnical disconnection unit for at least impairing an electrical coupling at an electrical energy supply, comprising: an electrically conductive connection section via which the electrical energy is conductible from the energy supply, a housing, in which the connection section is arranged, and a pyrotechnical substance accommodated in the housing in direct contact with an inner side of a base of the housing and arranged adjacent to a heat source, which is a characteristic for a critical operational state, the pyrotechnical substance being designed and/or controllable in such a way that its pyrotechnical effect is unfolded when reaching a predefined operational state, wherein the pyrotechnical substance is attributed to the connection section in such a way that thermal energy from the pyrotechnical effect of the pyrotechnical substance directly effectuates complete disintegration of at least a portion of the connection section, thereby at least directly limiting the electrical conductivity of the connection section inside the housing.