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US 10,553,387 B1Granted
Fuse with arc-suppressing housing walls
AssigneeLittelfuse, Inc.
InventorMichael Angelini
Life of this patent
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Abstract
Various embodiments are generally directed to providing a fuse with one or more walls for suppressing an arc during a fuse explosion and one or more methods for making the same. A fuse may include: a housing having an interior cavity and an outer cavity, a fuse element disposed within the interior cavity, a plurality of terminals extending out of the housing and electrically connected to the fuse element, and an arc-suppression wall disposed in the interior cavity that is configured to suppress an electric arc associated with the fuse element opening.
Claims20
A fuse, comprising:
- a first housing part having an interior cavity and an outer cavity;
- a fuse element disposed within the interior cavity;
- a plurality of terminals extending out of the first housing part and electrically connected to the fuse element;
- and
- an arc-suppression wall disposed in the interior cavity, the arc-suppression wall including a raised portion and a hollow portion, wherein both the raised portion and the hollow portion are configured to i) suppress an electric arc associated with the fuse element opening and ii) facilitate ultrasonic bonding of the first housing part to a second housing part;
- wherein the arc-suppression wall is oriented perpendicular to a long axis of the fuse element, and wherein the fuse element is split into a first portion that extends around a first side of the arc-suppression wall at an acute angle and a second portion that extends around a second side of the arc-suppression wall at an acute angle.
3 more elements
A fuse, comprising:
- a first housing part having an interior cavity and at least one outer cavity;
- a fuse element disposed within the interior cavity;
- a plurality of terminals extending out of the first housing part and electrically connected to the fuse element;
- and
- at least two arc-suppression walls disposed in the interior cavity, each of the arc-suppression walls including a raised portion and a hollow portion, wherein both the raised portion and the hollow portion are configured to i) suppress an electric arc associated with the fuse element opening and ii) facilitate ultrasonic bonding of the first housing part to a second housing part;
- wherein the at least two arc-suppression walls are oriented perpendicular to a long axis of the fuse element, and wherein the fuse element is split into a first portion that extends around a first side of the arc-suppression walls at an acute angle and a second portion that extends around a second side of the arc-suppressions wall at an acute angle.
3 more elements
A method of forming a fuse, comprising:
- providing a fuse structure comprising a fuse element and a first terminal and a second terminal connected to the fuse element;
- providing a first housing part and a second housing part, each of the first housing part and the second housing part including at least one arc-suppression wall;
- and
- bonding the first housing part and the second housing part by ultrasonically bonding the at least one arc-suppression wall of the first housing part to the arc-suppression wall of the second housing part;
- wherein the arc-suppression walls are oriented perpendicular to a long axis of the fuse element, and wherein the fuse element is split into a first portion that extends around a first side of the arc-suppression walls at an acute angle and a second portion that extends around a second side of the arc-suppressions wall at an acute angle.
2 more elements
Dependencies are inferred from the claim text.