Abstract: A medium voltage controllable fuse that provides fast activation in response to both low current and high current faults, and at load currents in response to an external condition detected by an external sensing device. The controllable fuse includes a high-current fault interrupting section, a low-current fault interrupting section, and a trigger element responsive to a fuse controller.

Abstract: Provided are: a plug body including a main body housing, a fuse having a pair of terminals protruding outside the main body housing with the fuse being accommodated in the main body housing, and a cover attached to the main body housing; a circuit accommodating body configured to accommodate a pair of terminals on a mating side connected to the pair of terminals of the fuse; a rotatable lever connected to the plug body and the circuit accommodating body and configured to connect and disconnect between the pair of terminals of the fuse and the pair of terminals on the mating side; and a fuse biasing portion configured to bias the fuse accommodated in the main body housing toward the cover.

Abstract: A compact, high breaking capacity fuse that includes a top insulative layer, at least one intermediate insulative layer, and a bottom insulative layer arranged in a vertically stacked configuration. The at least one intermediate layer may have a hole formed therethrough that defines an air gap within the fuse. A first conductive terminal may be formed on a first end of the fuse and a second conductive terminal may be formed on a second end of the fuse. At least one fusible element may connect the first terminal to the second terminal, thus providing an electrically conductive pathway therebetween. A portion of the at least one fusible element may pass through the air gap defined by the hole in the at least one intermediate insulative layer.

Abstract: A temperature switch electrically interconnects a first wire and a second wire, and includes a conducting mechanism and a temperature control mechanism controlling electrical connection between the first and second wires using the conducting mechanism in a normal condition. The conducting mechanism includes a safety unit composed of a conducting resilient bracket and a deformable component abutting against the conducting resilient bracket, thereby enabling the conducting resilient bracket to electrically interconnect the first and second wires. The deformable component is deformed upon reaching a specific temperature, such that interconnection between the first and second wires made via the conducting resilient bracket is broken.

Abstract: Certain aspects are directed to a thermal fuse for preventing overheating of RF devices in a telecommunication system. The RF thermal fuse includes a body, a conductive bolt, and a driving mechanism. The body can be positioned on a transmission line between an RF signal source and an RF device. The conductive bolt is positioned in the body. The conductive bolt has a length sufficient to provide impedance at a point of protection on the transmission line in response to the conductive bolt contacting a live conductor of the transmission line. The impedance is sufficient to reflect a portion of the incident power of an RF signal from the RF source. The driving mechanism can cause the conductive bolt to contact the live conductor in response to a temperature at or near the point of protection exceeding a threshold temperature.

Abstract: A first and a second pair of projecting portions are provided in a cavity portion of a fuse mounting portion made of resin. An upper end surface of each projecting portion is tapered, so as to guide a pair of male terminals of a fuse sub-assembly toward a corresponding female terminals attached to the cavity portion, when the fuse sub-assembly is inserted into the cavity portion. A gap is formed between the fuse sub-assembly and the tapered upper end surfaces in a fuse-mounted condition, in which the fuse sub-assembly is in contact with a stopper portion of the cavity portion, in order to prevent contact failure caused by thermal shock.

Abstract: An electric fuse includes a conductive material formed on a top surface of an insulating material. The conductive material includes a wiring portion, and first and second terminal portions arranged in two ends of the wiring portion so that the wiring portion is located between the first and second terminal portions. The first terminal portion, the wiring portion, and the second terminal portion are lined up in a first direction. The first and second terminal portions each have a width larger than a width of the wiring portion in a second direction perpendicular to the first direction. The electric fuse includes a film including an opening which exposes a region between the first terminal portion and the second terminal portion. The film is formed above at least a part of the wiring portion and has a tensile stress.

Abstract: The present invention relates to a multi-pole switch-fuse arrangement having at least two switch-fuse units into which one fuse link each can be inserted. The switch-fuse arrangement comprises a switching device for closing and breaking the circuits of all switch-fuse units, the switch-fuse arrangement comprising a switching lever, a housing, a drive rod, and a lever mechanism device for actuating a drive rod.

Abstract: The device includes a thermoelectric module provided with a thermocouple. Said thermocouple includes a first and second leg which are made of different thermoelectric materials, electrically connected by a connecting element configured to deform according to the temperature thereof so as to assume: a first deformation position in which the first and second legs are electrically connected in series solely by means of the connecting element; and a second deformation position in which the connecting element is in electrical contact with a shunt contact pad of the device, said shunt contact pad being made of a material, the electrical conductivity of which is greater than the electric conductivity of the connecting element and of the first and second legs. The device also includes a load, the electrical resistance of which is lower than the electrical resistance of the thermoelectric module, said load being electrically connected to the shunt contact pad.

Abstract: An electronic package structure is provided which comprises a metal core PCB, an energy storage device and at least one electronic component. The at least one electronic component is disposed between the metal core PCB and the energy storage device. The metal core PCB defines at least a through hole. A thermal passage is disposed in the through hole. An insulating layer is disposed in the through hole and located between the metal layer of the metal core PCB and the thermal passage to prevent the electric coupling between the thermal passage and the metal layer. The energy storage device comprises at least a connecting pin in thermal contact with the thermal passage.

Abstract: A fuse appliance has a fuse carrier for receiving a fuse and a base. The fuse carrier is in a cavity of the base and is manually operable to remove or insert the fuse. Fixed contacts are provided on the base which engage with moving contacts provided on the carrier. Wiring terminals are electrically connected to the fixed contacts. A rotational-linear pulling operation mechanism has a semicircular rotary shaft structure that has two semicircular convex shafts and first and second circular straight grooves fitted to each other so that the fuse carrier performs rotational and linear movements relative to the base and an interchange between rotational and linear movements at a transition position when the carrier is pulled out of or pushed into the appliance.

Abstract: An apparatus for cooling an integrated circuit (IC) die is described. The apparatus includes an adhesion layer coated on a surface of the IC die, wherein the adhesion layer has high thermal conductivity. The apparatus also includes a heat dissipation structure affixed onto the adhesion layer. This heat dissipation structure further includes a set of discrete heat dissipation elements which are substantially mechanically isolated from each other. This set of discrete heat dissipation elements provides an extended heat dissipation surface for the IC die. Moreover, each of the set of discrete heat dissipation elements has high compliance, which allows the adhesion layer to be sufficiently thin, thereby reducing a thermal conductivity of the adhesion layer.

Abstract: A protective device including a substrate, a conductive section and a bridge element is provided. The conductive section is supported by the substrate, wherein the conductive section comprises a metal element electrically connected between first and second electrodes. The metal element serves as a sacrificial structure having a melting point lower than that of the first and second electrodes. The bridge element spans across the metal element in a direction across direction of current flow in the metal element, wherein the bridge element facilitates breaking of the metal element upon melting.

Abstract: In a blade-type fuse (10) according to the present invention one of an upper casing (20) and a lower casing (30) includes a fixing post (30K), the other casing includes a through-hole (20K) through which the fixing post (30K) is passed, and also the flat terminal portion (41) includes a through-hole (40K) through which the fixing post (30K) is passed. The flat terminal portion (41) is formed bilaterally symmetrically about a vertical line passing through a center of the blade-type fuse (10), and vertically symmetrically about a horizontal line passing through the center of the blade-type fuse (10).

Abstract: An electric fuse, having a first fusible element and a disconnect section electrically connected in series to the first fusible element. The disconnect section is comprised of a first stationary contact, a second stationary contact and a movable contact movable from a first position electrically connecting the first and second stationary contacts to form a conductive path through the disconnect section to a second position electrically separating the first and second stationary contacts from each other and terminating the conductive path through the disconnect section. A retaining element holds the movable contact in the first position, the retaining element operable to release the movable contact from the first position when activated by an electrical (actuation) signal from an external source.

Abstract: A fusible switch disconnect includes a fuse, a primary switch connected in series with the fuse. and a semiconductor switch device connected in parallel with the fuse. The semiconductor device is configured to resist current flow through the fuse and the primary fuse to facilitate arcless operation of the primary switch when connected to energized, DC circuitry.

Abstract: The fuse bypass jumper of the present invention bridges the upper and lower fuse terminals of a high-voltage transmission line cut-out box so as to bypass the fuse element. The jumper comprises lateral upper and lower arms connected by a longitudinal jumper bar. The jumper arms and bar are made of a heavy gauge conductor rated for at least 100 Amps. With the jumper in place, the fuse element can be opened, removed and/or replaced without interrupting the transmission line circuit through the cut-off box, since the jumper now provides a bypass around the fuse. Since the bypass conductive path constitutes a heavy gauge, high-amperage bar conductor, this jumper can carry a much larger current load than flexible wire-based jumpers.

Abstract: A heat dissipating module having enhanced heat dissipating efficiency is disclosed. The heat dissipating module includes a heat dissipating member, a base and an air guiding member. The heat dissipating member is installed on a first electronic component for dissipating heat generated by the first electronic component. The base is installed on a side of the heat dissipating member, and the air guiding member is connected to the base. The air guiding member and the base cooperatively guide an air flow passing through the heat dissipating member to a second electronic component located on a side of the first electronic component.

Abstract: The invention relates to a mechanical assembly for a wire-fuse circuit-breaker (1) provided with a fuseholder (2) and a drive lever (3) adapted to be actuated by an operator and to actuate a lever for breaking the fuse wire. According to the invention, the direction of pivoting of the drive lever is the opposite of the direction of pivoting of the fuseholder tube and the mounting of the parts leaves sufficiently clear the area in the vicinity of the open lower end of the fuse-holder tube to allow gases produced by breaking the fuse wire to exhaust without disturbing the flow thereof. This makes a wire-fuse circuit-breaker safe to drive and safe in operation. The invention also relates to a method of renovating an existing wire-fuse circuit-breaker.

Abstract: An improved fuse having one or more counter bores in an interior wall of a hollow tube used as the fuse housing. The fuse includes a fusible element disposed within a cavity defined by the interior wall. The fusible element is electrically connected to first and second end caps via solder. The first and second end caps are attached to respective ends of the hollow tube. The one or more counter bores provide more space for the solder to cover the fusible element resulting in a more reliable electrical connection.