Back to results
US 12,573,575 B2Granted
Fuse with encapsulated arc quenching material
AssigneeEaton Intelligent Power Limited
InventorsRobert Stephen Douglass, Gautam Sharma
Life of this patent
Estimating the term…
Abstract
In one embodiment, a fuse includes a casing, a fuse element housed inside the casing, and one or more arc-quenching-material containers including arc quenching material. Each arc-quenching-material container may be configured proximately to one or more weak spots of the fuse element such that, in an event of an arc, the arc-quenching-material containers are configured to rupture and release the arc quenching material.
Claims20
A fuse comprising:
- a casing of electric insulating material comprising two openings, wherein each of the two openings is fitted with a terminal;
- a fuse element housed inside the casing, wherein the fuse element is conductively coupled to the two terminals, wherein the fuse element comprises two or more series of weak spots;
- and
- two or more arc-quenching-material containers, wherein a length of each arc-quenching-material container extends along a length of one series of the two or more series of weak spots, wherein arc quenching material is encapsulated within each of the two or more arc-quenching-material containers and is not in contact with the fuse element, and wherein each of the two or more arc-quenching-material containers is located within a pre-determined distance from a corresponding series of weak spots of the two or more series of weak spots such that the arc quenching material within the arc-quenching-material container is released into the corresponding series of weak spots when the arc-quenching-material container ruptures.
1 more element
A method of manufacturing a fuse, the method comprising:
- positioning a fuse element between two terminals, wherein the fuse element comprises two or more series of weak spots;
- conductively coupling the fuse element to the two terminals;
- configuring two or more arc-quenching-material containers proximately to the two or more series of weak spots, wherein a length of each arc-quenching-material container extends along a length of one series of the two or more series of weak spots, wherein arc quenching material is encapsulated within each of the two or more arc-quenching-material containers and not in contact with the fuse element, and wherein each of the two or more arc-quenching-material containers is located within a pre-determined distance from a corresponding series of weak spots of the two or more series of weak spots such that the arc quenching material within the arc-quenching-material container is released into the corresponding series of weak spots when the arc-quenching-material container ruptures;
- and
- fitting the two terminals to a casing such that the casing encloses the fuse element and the two or more arc-quenching-material containers.
2 more elements
Dependencies are inferred from the claim text.