Abstract: A fuse including a fuse body having a main body portion formed of a dielectric material, a plurality of arc chambers formed in the main body portion, the arc chambers arranged in a matrix configuration, a conductor extending through the main body portion and intersecting the arc chambers, the conductor having bridge portions disposed within the arc chambers, the bridge portions being mechanically weaker than other portions of the conductor and configured to melt and separate upon the occurrence of an overcurrent condition in the fuse.

Abstract: A fuse includes a tubular body having two ends each having a first cap, which is formed with a through hole; a fusible and breakable unit including a first fusible filament arranged inside the tubular body and having two ends extending outward through the through holes respectively; and a plurality of second caps each of which has a surface that is formed with a recessed part and an opposite surface that is provided with a conductive wire. The recessed parts of the second caps are mounted to outer circumferences of the first caps. The two ends of the first fusible filament are respectively coupled between the first caps and the second caps corresponding thereto so as to extend a distance between the two ends of the first fusible filament and thus, preventing the occurrences of electrical arc after the first fusible filament is fused and broken.

Abstract: A novel temperature-triggered fuse device is configured to be activated at a designer-specified ambient temperature by utilizing wetting force among a pair of wetting material bays and a solder bridge or a solder ball. The solder bridge or the solder ball is typically positioned on top of the pair of wetting material bays separated by an electrically-insulated gap. Preferably, the wetting material bays are at least partly made of gold, nickel, or other elements suitable for generating an increased wetting force to the solder bridge or the solder ball upon increases in ambient temperature. The novel temperature-triggered fuse device can be integrated into various types of integrated circuits (IC's), or can function as a discrete fuse connected to one or more electronic components for robust protection from power surges and/or thermal runaway-related device malfunctions, meltdowns, or explosions. Various methods of producing the temperature-triggered fuse device are also disclosed herein.

Abstract: A novel fuse device incorporates electrically-conductive metal-filled vias that vertically connect frontside metal pads with backside metal pads through an electrically-insulated base substrate. The vias are initially created by drilling through the base substrate and then completed by filling the drilled vias with an electrically highly-conductive metallic substance. The vertical electrical connection between the frontside metal pads and the backside metal pads, established by the vias in the fuse structure, enables packageless integration of the novel fuse device to an electronic circuit by eliminating the structural need for wire bond pads and conventional leadframe or cavity packages. Preferably, each frontside metal pad of the novel fuse device is connected to an electrical terminal of the electronic circuit requiring fuse-based power protection, and each backside metal pad is attached to a printed circuit board (PCB) containing the electronic circuit for seamless direct mounting of the fuse structure.

Abstract: Hollow bodies and hollow body fuses are disclosed. Furthermore, methods to provide hollow bodies and hollow body fuses are disclosed. In one implementation, a hollow body includes a center portion and an end portion. An endcap may be coupled to the end portion. A cavity is formed between an inside surface of the endcap and an outer periphery of the end portion. A fusible element may be disposed within the hollow body, the fusible element may be further disposed within the cavity formed between the inside surface of the endcap and the outer periphery of the end portion, the fusible element traveling a substantially diagonal path through a center of the cavity.

Abstract: Embodiments of the fuse include a fuse body having a first end and a second end. A fuse element is disposed within a cavity of the fuse body, an end of the fuse element extending beyond an edge of the fuse body. An arc disc is disposed on the edge of the fuse body, and includes a notch such that the end of the fuse element extends to an outer surface of the arc disc. The end of the fuse element is configured to be folded over the outer surface of the arc disc. An end cap is disposed over the end of the fuse body and the arc disc, and the end cap includes a hole at a top surface. Solder deposited within the hole provides an electrical connection between the arc disc, the fuse element, and the end cap.

Abstract: A computer planar includes an enable signal line for providing an enable signal to an external power supply, wherein the external power supply will not turn on unless the enable signal is active high. During normal operation, an auxiliary power source maintains an active high enable signal on the enable signal line, which includes a fuse. However, a fault protection circuit coupled to the enable signal line can pull down the enable signal line in response to a fault, such that the fuse is permanently opened. Once the fuse is open, the external power supply cannot be enabled and further damage to the computer planar is prevented.

Abstract: A protective device for protecting equipment includes an insulation base substrate, a fusible conductor arranged on the insulation base substrate and connected to a power supply path for the equipment so that the fusible conductor is fused off by a preset abnormal current or voltage, an insulation cover mounted on the insulation base substrate to overlie the fusible conductor via a preset spacing, and a flux coated on a surface of the fusible conductor and disposed in the spacing. The fusible conductor is fused off to break a current path when the abnormal voltage is applied to the equipment. The fusible conductor is secured to a conductor layer and to pair electrodes provided on the insulation base substrate via an electrically conductive paste containing a metal component exhibiting wettability with respect to the fusible conductor in the fused state.

Abstract: A fuse for a high voltage/high current application, such as a hydro-electric vehicle (“HEV”) application is provided. The fuse employs a variety of arc quenching features to handle a large amount of arcing energy that is generated when such fuse is opened due to a fuse opening event. In one embodiment, an insulative substrate, such as a melamine substrate, is metallized with a fuse element. The fuse element extends to multiple surfaces of the substrate. A fuse opening portion of the element is located so that the arcing energy is forced to travel along multiple insulative planes, increasing an impedance across the opening of the element and decreasing the likelihood of a sustained arc. Also, the substrate and element are disposed in a sealed housing, which is packed in one embodiment with an arc quenching material, such as sand.

Abstract: A fuse that includes an arc energy reducing coating to reduce arc energy during a short-circuit and/or a full voltage overload current interrupt is described. The fuse includes end conductor elements, and at least one fuse element secured between and making electrical contact with the end conductor elements. An elongate fuse housing, having a passageway extending longitudinally through the housing, extends between the end conductor elements. The fuse element extends through the housing passageway. An arc energy reducing coating at least partially coats each end portion of the fuse element.

Abstract: A fuse that includes an arc energy reducing coating to reduce arc energy during a short-circuit and/or a full voltage overload current interrupt is described. The fuse includes end conductor elements, and at least one fuse element secured between and making electrical contact with the end conductor elements. An elongate fuse housing, having a passageway extending longitudinally through the housing, extends between the end conductor elements. The fuse element extends through the housing passageway. An arc energy reducing coating at least partially coats each end portion of the fuse element.

Abstract: A fuse assembly 1 including a pair of terminals 2 which are arranged in parallel to each other, a housing 4 having a cavity 20 for containing one end portions 3a of the terminals, and a fusible body 5 interconnecting the terminals 2. The fusible body 5 consists of a pair of supporting portions 39 connected to end faces 8 of the terminals 2, and a connecting portion 40 interconnecting the supporting portions 39. The fuse assembly 1 further includes anchoring parts 30 for fixing the fusible body 5 to the housing 4 and second anchoring parts 31 for fixing the terminals 2 to the housing 4. The anchoring parts 30 include through holes 45 formed in the supporting portions 39, and projections 46 projected from an inner face 17 of the housing 4 and adapted to be engaged in the through holes 45. Thus, conduction of heat generated in the fusible body 5 to electrical equipments connected to the terminals can be restrained.

Abstract: A fuse 1 includes a pair of terminals 2, housing 4 and fusible body 5. The terminals 2 are provided so that their one ends are housed in the housing 4 and their other ends are exposed externally from the housing 4. The terminals 2 each has a recess to enlarge the interval therebetween. The recess 6 consists of a flat face 10 and step face 11. The housing 4 includes a pair of end walls 12a, 12b, and a pair of partition walls 22. The inner faces 15a, 15b of the pair of end walls 12a, 12b are opposite to each other in a direction orthogonal to the direction the pair of terminals are arranged in parallel and extend along the end faces of the terminals 2. The partition wall extend from the inner face 15b toward the inner face 15a. The second partition walls each covers the flat face 10. In this configuration, when the power with a current value which exceeds the fusing current value of the fusible body is supplied, supply of the power to the load can be surely stopped.

Abstract: A fuse 1 includes a pair of terminals 2, a housing 4 and a fusible body 5. The one ends 3a of the terminals 2 are housed within the housing 4. The housing 4 includes a pair of end walls 12a, 12b, a pair of side walls 13a, 13b, a first partition wall 21 and a pair of second partition walls 22. The inner faces 15a, 15b of the pair of end walls 12a, 12b are opposite to each other in a direction orthogonal to the direction of arranging the terminals in parallel and extend along the end faces of the terminals. The inner faces 16a, 16b of the side walls 13a, 13b are opposite to each other in a direction of arranging the terminals in parallel. The first partition wall 21 is located between the pair of terminals 2. The pair of second partition walls 22 are located between the first partition wall and the inner faces 16a, 16b, respectively.

Abstract: A fuse assembly, in which a pluraity of members constituting a housing of the fuse assembly can be mounted tightly and whether the fuse element has blown out or not can be easily checked, is provided. The fuse assembly 1 has a pair of terminals 2, a fuse element 5 and a housing 4. Each end 3a of the terminals 2 is received into the housing 4. The fuse element 5 connects the terminals 2 with each other. The fuse element 5 has a pair of locking claws 61. The housing 4 has casing members 4a and 4b, which receive each end 3a of the terminals 2 and the fuse element 5 when the casing members 4a and 4b are fit with each other in the housing 4. Each casing member 4a and 4b has a locking recess 64 for engaging with the locking claw 61. One locking claw 61 engages with one locking recess 64, while an opposite locking claw 61 engages with an opposite locking recess 64.

Abstract: A fuse including a fusible link element having a pair of terminal portions and a fusible portion through which the terminal portions are connected to each other, the terminal portions having upward locking pieces at upper corners thereof, a housing for receiving the fusible link element, having stepped recesses between inner and outer walls thereof in which end portions of the upward locking pieces are fitted when the upward locking pieces are bent inwardly, and a housing cover for closing an open end of the housing, having legs which are extended towards the housing so that the legs are abutted against the end portions of the upward locking pieces when the cover is fitted to the housing, lower ends of the legs having taper surfaces brought into contact with the outer sides of the upward locking pieces.

Abstract: A chip-type micro-fuse including a fusible element, a hollow body made of heat-resistant and insulative materials having at lesat two recesses which are respectively formed on an outer peripheral surface thereof, near the ends thereof and two end caps adapted to respectively cover the ends of the body for electrically connecting the body with external circuits. The end portions of the fusible element are respectively connected at the recesses to the end portions of the body. Further, the recess defined near one end portion of the body is positioned diagonally spaced with respect to another recess defined near the other end of the body. Thus, the fusible element is diagonally stretched between the ends of the body across the inner space of the body. When assembled, the end portions of the fusible element are respectively drawn out from the interior of the fuse without damaging the fusible element and connected at the recesses to the body.

Abstract: Within an electrically insulating housing there is provided a continuous hollow space open at both ends. Tubular portions of end contacts are insertably disposed at both ends of the hollow space. Flat portions of the end contacts form clamping locations for a fusible conductor and also solder legs. At the clamping locations there are clamped the ends of the fusible conductor. Each of the solder legs form an associated wave soldering region and a reflow soldering region. During fabrication of the fuse device the end contacts which then still possess a tubular-shaped configuration are inserted into the ends of the hollow space of the electrically insulating housing. There is then drawn-in the fusible conductor and predetermined portions of each of the end contacts are pressed flat for form the flat portions. In this way, the ends of the fusible conductor are clamped at the clamping locations. Thereafter, the flat portions are bent to form the solder legs.

Abstract: Disclosed is an improved fuse link assembly wherein a tensioned fusible element is secured at each end to a circuit conductor for connection to an external electrical circuit. The improvement includes an integral stamped crimp terminal which secures each end of the fusible element to a circuit conductor. The crimp member includes a serial succession of three discrete crimp portions, a first portion for receiving the fusible element, a second portion for receiving the circuit conductor, and a third portion for receiving a wire-like strain relief element disposed in parallel, cross the fusible element. The first crimp terminal (which receives the fusible element) is located between the second and third crimp portions. Each crimp portion has an internal diameter approximately equal to the diameter of the conductor received therein.

Abstract: A high voltage fuse having a fuse assembly embedded in a granular dielectric material within a cylindrical dielectric housing, the fuse assembly including a number of fuse support surfaces, a support ring at each end of the plates to hold the plates in on equally spaced radial rotation, a conductive plate secured to each of said rings and including a threaded boss, a fuse element helically wound around said support surfaces and being electrically connected to said support plates, an electrically conductive end cap having a threaded stud and being mounted at one end of said housing, whereby the boss on one end of said fuse assembly is connected to said stud.

Abstract: An improved cartridge fuse has resilient plugs at opposite ends of the fuse housing through which extend a centered fuse filament held in tension by the defining walls of a plug passage hugging the fuse filament to maintain such tension. The fuse filament is placed in the plug passages by means of a needle which is passed through the fuse housing and the plugs therein to create a path for the fuse filament which, when the needle is pulled from the housing, leaves the fuse filament in a tensed centered condition in the fuse housing.

Abstract: A six rib spider assembly for a fuse including a dielectic housing having end caps for supporting the spider assembly within the housing and a fusable ribbon helically wound on the spider assembly, the housing being filled with a granular dielectic material. The spider assembly including three mica plates each having a number of notches in their longitudinal edges to define support surfaces along each longitudinal edge for the fusable ribbon. These support surfaces on each longitudinal edge being offset from the support surfaces on the opposite longitudinal edge as well as from the support surfaces on each of the other mica plates. Each plate also including at least one longitudinal slot intermediate the longitudinal edges of the plate with one of the plates including a second slot, whereby the plates can be cross fitted into each other with the plates angularly related so that the support surfaces define a helical path for the fusable ribbon.

Abstract: The invention is predicated on the use of synthetic resins as materials for fuse casings or fuse tubes because synthetic resins are relatively easily deformable. This invention is particularly applicable in connection with fuse tubes made of polyester resin and glass fibers. Such tubes lend themselves to making solderless fuse terminals, i.e. electrically conductive joints between the ferrules, or fuse caps, and the fusible element, or elements, inside the fuse tube. The fusible element is located inside the casing or fuse tube and bent over the rim thereof, and has a portion that engages the outer surface of the casing.

Abstract: A fuse assembly having a dielectric base plate and a fuse strip laminated to the base plate. The fuse strip comprises a bus bar and one or more spaced contact portions each joined by a fuse link to the bus bar. At the end of each fuse link the laminate is apertured to receive a fuse clip. The fuse clip is insertable in the aperture and is constructed and arranged to have clamping engagement with the base plate and fuse strip. The fuse clips associated with each fuse link are provided with aligned fuse retention means adapted to receive a substitute fuse link device for electrically bypassing an open fuse link in the fuse strip.

Abstract: Electric fuses having a helically wound fusible element are provided with simple, cost-effective sheet metal means performing the dual function of supporting insulating plates which, in turn, support the helically wound fusible element, and of establishing conductive connections between the ends of the helically wound fusible element and a pair of ferrules by which the casing of the fuse is closed.