A safety fuse for use in a motor vehicle includes which fuse comprises a first contact metal portion, a second contact metal portion and a melting metal section connecting the first contact portion to the second contact portion. The melting section is enclosed by a casing made from a non-conductive material and includes two hollow half-shells provided with mutual coupling elements, each half-shell having an inner surface facing the melting section and an outer surface facing outside of the fuse. At least one of the half-shells is provided on at least part of the inner surface of an alveolar structure with open cells in the direction of the melting section. The alveolar structure is formed by a plurality of walls protruding from the inner surface and intersected with each other.

Disclosed is a circuit protection device including a case, a negative temperature coefficient thermistor accommodated in the case and including a resistant heating element, a pair of electrodes installed on both sides of the resistant heating element, and a first thermistor lead wire and a second thermistor lead wire withdrawn from the pair of electrodes, respectively, and a fuse accommodated in the case and including a fuse body and a first fuse lead wire and a second fuse lead wire connected to both ends of the fuse body, respectively. Here, the fuse body includes a fuse rod with a plating layer formed thereon and a pair of fuse caps coupled to both ends of the fuse rod and having conductivity, and the first fuse lead wire and the second fuse lead wire are bonded to the pair of fuse caps, respectively.

A fuse device that uses a fuse element having an appropriate size in order to improve the rating, while maintaining insulation performance. The fuse device is provided with a fuse element, a case having a housing space for housing the fuse element and having a lead-out port through which both ends of the fuse element are led out, and which supports the fuse element in a bridge-like manner in the housing space; and a shield disposed in the housing space for shielding an inner wall surface leading to the lead-out port from a scattered melted material from a fusing location of the fuse element.

The present disclosure discloses a miniature super surface mount fuse, comprising: a fuse element provided with a low overload fusing point and at least two high breaking capacity fusing points connected in series with the low overload fusing point and respectively arranged on two sides of the low overload fusing point, at least two cavity plates provided with cavities, the low overload fusing point and the high breaking capacity fusing points being located at corresponding positions of the cavities; the present disclosure further provides a manufacturing method for a surface mount fuse; the miniature super surface mount fuse of the present disclosure can provide the protection for the civil consumer electronic circuit under various overload conditions without the occurrence of safety hazards such as smoking or cracking of the housing or explosion.

A fuse including a first housing part and a second housing part that are joined together to define a cavity, a fuse element disposed within the cavity, a first terminal extending from a first end of the fuse element and out of the housing, and a second terminal extending from a second end of the fuse element and out of the housing, the housing having a vent channel extending from an outer surface of the housing to the cavity for allowing vapor to escape from the cavity.

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.

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.

A protection device comprises a substrate, a fusible element, a flux and an insulating cover. The fusible element is disposed on the substrate and connects to a power line of an apparatus to be protected. The flux is disposed on the fusible element. The insulating cover is secured on the substrate to form a room for receiving the fusible element. The insulating cover has a bottom surface facing the substrate, and a plurality of protrusions are formed and distributed on the bottom surface to hold the flux in place.

A protection device comprises a substrate, a fusible element, a flux and an insulating cover. The fusible element is disposed on the substrate and connects to a power line of an apparatus to be protected. The flux is disposed on the fusible element. The insulating cover is secured on the substrate to form a room for receiving the fusible element. The insulating cover has a bottom surface facing the substrate, and a plurality of protrusions are formed and distributed on the bottom surface to hold the flux in place.

Disclosed is a circuit protection device including a case, a negative temperature coefficient thermistor which is accommodated in the case and includes a resistant heating element, a pair of electrodes installed on both sides of the resistant heating element, and a first lead wire and a second lead wire withdrawn from the pair of electrodes, respectively, and a thermal fuse which is accommodated in the case and includes a thermal fuse body and a third lead wire and a fourth lead wire connected to both ends of the thermal fuse body, respectively. Here, the second lead wire and the third lead wire are connected to each other in the case.