Enclosing structure for a high voltage electric fuse
First Claim
1. An enclosing structure for an electric fuse having a fusible element disposed within a tubular casing of insulating material and interconnected at its ends with terminals mounted on the casing ends, said enclosing structure comprising an elongated enclosure formed of insulating and semiconducting material and disposed about said tubular casing and with its inner surface in heat transferring surface contacting relation therewith, and a rigid metallic heat absorbing sleeve embedded in said elongated enclosure for absorbing heat therefrom and for imparting a degree of mechanical strength thereto.
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Accused Products
Abstract
An enclosing structure for an electric fuse having a fusible element disposed within a tubular casing of insulating material and interconnected at its ends with terminals mounted on the casing ends comprises an elongated tubular enclosure formed of insulating and semiconducting material and disposed about the fuse with its inner surface in heat transferring surface contacting relation therewith and a rigid metallic heat absorbing sleeve imbedded in the elongated enclosure to absorb heat therefrom and to impart a degree of mechanical strength thereto. Semiconducting sleeves which form parts of the tubular enclosure include an outer sheath which is grounded and inner sleeve elements arranged so as to isolate the fuse and the contacts of the fuse enclosing structure thereby to inhibit corona discharge from the conducting parts.
17 Citations
15 Claims
- 1. An enclosing structure for an electric fuse having a fusible element disposed within a tubular casing of insulating material and interconnected at its ends with terminals mounted on the casing ends, said enclosing structure comprising an elongated enclosure formed of insulating and semiconducting material and disposed about said tubular casing and with its inner surface in heat transferring surface contacting relation therewith, and a rigid metallic heat absorbing sleeve embedded in said elongated enclosure for absorbing heat therefrom and for imparting a degree of mechanical strength thereto.
- 10. An enclosing structure for an electric fuse having a fusible element disposed within a tubular casing of insulating material and interconnected at its ends with terminals mounted on the casing ends, said enclosing structure comprising an elongated tubular enclosure formed of insulating and semiconducting material and disposed about said tubular casing and having a plurality of longitudinal troughs formed along the inner surface thereof and defining a plurality of ribs therebetween, said ribs being flexible and in heat transferring surface contacting relation with the outer surface of the fuse casing.
- 13. An enclosing structure for an electric fuse having a fusible element disposed within a tubular casing of insulating material and interconnected at its ends with terminals mounted on the casing ends, said enclosing structure comprising a pair of end sections formed of pliable material and having telescopically related inner ends and each including a transversely projecting bushing well at its outer end, a rigid mounting bracket disposed about at least a part of each of said bushing wells, a rigid mounting plate disjointably secured near its ends to said mounting brackets to impart mechanical reinforcement to said enclosing structure and to provide mounting means therefor, and an arcuate mounting ring pivotally mounted at its ends on a mounting base, said mounting ring and said mounting plate being disjointably coupled together in such manner as to accommodate limited universal movement of said structure.
Specification