Method of providing a protective component with an adjusted...

Details Method of providing a protective component with an adjusted... Method of providing a protective component with an adjusted...

2007-09-04

2007-09-04

Vortman, Anatoly (Department: 2835)

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

C337S182000, C337S183000, C029S623000

Reexamination Certificate

active

10488072

ABSTRACT:
The invention relates to a method for producing a protective component, for example a fuse component or a fusing resistor, including a fusible element and a heating element, which are attached as stacking components to the surface of a substrate. The fusible element is configured in such a way that a current flow between its connections is interrupted, if the fusible component is heated, at least in one fusible region, for a predetermined time period to above a predetermined temperature. The fusible element and the heating element are arranged on the substrate in such a way, that heat created by the heating element is transported to the fusible element and the current flow through the heating element exceeds a threshold value for a predetermined time period. During production, the heating element is positioned next to the fusible element, at a predetermined distance from it. A predetermined, local thermal capacitance is set, at least approximately, at the location of the heating element and is coupled to the latter. Alternatively, a predetermined, local thermal capacitance is set at least at one predetermined location between the heating element and the fusible element. The capacitance accumulates part of the heat that is dissipated from the heating element to the fusible element. This produces, at least approximately, a defined time response of the thermal transmission from the heating element to the fusible element.

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patent: 2205455 (1988-12-01), None
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