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US 11,355,298 B2Granted
Method of manufacturing an open-cavity fuse using a sacrificial member
AssigneeLittelfuse, Inc.
InventorsAlbert Enriquez, Victor Oliver Tabell, Lily Rosios
Life of this patent
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Abstract
A method of assembly of an open-cavity, wire-in-air fuse which provides improved manufacturing yield and fuse reliability, involving coiling, braiding or twisting a fusible element around a sacrificial member during the manufacturing process to provide support for the fusible element to prevent mechanical breakages and necking problems commonly encountered during manufacture.
Claims23
A method of manufacturing an open-cavity fuse comprising:
- providing a first body portion of the open-cavity fuse;
- providing a fusible element supported by a sacrificial member, the fusible element and the sacrificial member each being supported at opposite ends thereof by the first body portion and spanning an open cavity defined in the first body portion;
- removing the sacrificial member;
- and
- providing a top layer disposed on an upper surface of the first body portion and a bottom layer disposed on a lower surface of the first body portion;
- wherein the top layer and the bottom layer seal the fusible element within the open cavity;
- and
- wherein the sacrificial member is removed prior to sealing the fusible element within the open cavity.
5 more elements
Dependencies are inferred from the claim text.