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US 12,444,564 B2Granted
Glass rods fuse assembly and methods of manufacture
AssigneeEaton Intelligent Power Limited
InventorRobert S. Douglass
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure provide medium or high voltage fuses that employ spiral wound elements supported by rods, which may replace the usages of a ceramic core. In particular, the use of rods to wind and fix spiral fuse elements provides increased reliability by minimizing the fuse elements from drifting within the fuse assembly.
Claims17
A fuse assembly comprising:
- two end plates;
- a plurality of rods coupled to the two end plates, wherein, for each of the plurality of rods, a first end of the rod is coupled to a first end plate of the two end plates and a second end of the rod is coupled to a second end plate of the two end plates, wherein each of the plurality of rods is detached and spaced from each of the other rods, and wherein the plurality of rods includes a first set of rods configured in an outer portion of the fuse assembly and a second set of rods configured in an inner portion of the fuse assembly;
- one or more rod support spacers configured to support a radial structure of the plurality of rods, wherein the one or more rod support spacers are configured to support the first set of rods and the second set of rods;
- and
- a first fuse element and a second fuse element each conductively coupled to the two end plates, wherein the first fuse element is wound around the first set of rods in a helical fashion, and wherein the second fuse element is wound around the second set of rods in a helical fashion.
2 more elements
A method of manufacturing a fuse assembly, the method comprising:
- configuring each of two end plates with a plurality of anchor points;
- positioning a plurality of rods between the two end plates, wherein, for each of the plurality of rods, a first end of the rod is coupled to one of the anchor points of a first end plate of the two end plates and a second end of the rod is coupled to another of the anchor points of a second end plate of the two end plates, wherein each of the plurality of rods is detached and spaced from each of the other rods, and wherein the plurality of rods includes a first set of rods configured in an outer portion of the fuse assembly and a second set of rods configured in an inner portion of the fuse assembly;
- positioning one or more rod support spacers within the fuse assembly to support a radial structure of the plurality of rods, wherein the one or more rod support spacers are configured to support the first set of rods and the second set of rods;
- and
- winding a first fuse element around the first set of rods in a helical fashion and a second fuse element around the second set of rods in a helical fashion, wherein the first fuse element and the second fuse element each is conductively coupled to the two end plates.
2 more elements
Dependencies are inferred from the claim text.