Fuse assemblies in the form of fuse blocks and fuse holders include embedded permanent magnet arc suppression features that facilitate higher voltage operation of fusible circuit protection without increasing the size of the fuse assemblies. The embedded magnets apply an external magnetic field upon an overcurrent protection fuse and produce an arc deflection force to enhance arc quenching capability of the fuse without increasing its form factor.

A protection element (10) of the present invention has a substrate (11), a first fuse element (12) and a second fuse element (13) connected in series on the substrate (11), a heater (14) connected between the first fuse element (12) and the second fuse element (13), a third upper electrode part (17) connected between the first fuse element (12) and the second fuse element (13) and connected to the heater (14) in series, a first conduction part (18) connected to the third upper electrode part (17) and having a lower resistance value than the heater (14), and a third lower electrode part (19) connected to the first conduction part (18) and configured to be connectable to an external protection circuit.

A protection element (10) of the present invention has a substrate (11), a first fuse element (12) and a second fuse element (13) connected in series on the substrate (11), a heater (14) connected between the first fuse element (12) and the second fuse element (13), a third upper electrode part (17) connected between the first fuse element (12) and the second fuse element (13) and connected to the heater (14) in series, a first conduction part (18) connected to the third upper electrode part (17) and having a lower resistance value than the heater (14), and a third lower electrode part (19) connected to the first conduction part (18) and configured to be connectable to an external protection circuit.

A conductor unit includes a connection conductor directly or indirectly connected with at least one electrode terminal in an electrode terminal group of a plurality of battery cells arranged in the same direction, a linear conductor connected with a battery monitoring unit that monitors the battery conditions of the battery cells, a fusible body that is connected between the connection conductor and the linear conductor and fuses when an overcurrent flows between the connection conductor and the linear conductor, and an insulative resin-molded member that contains the fusible body therein. The connection conductor includes holding portions that are disposed inside the resin-molded member, and hold the resin-molded member. The holding portions are formed in at least two places spaced apart from each other.

A conductor unit includes a connection conductor directly or indirectly connected with at least one electrode terminal in an electrode terminal group of a plurality of battery cells arranged in the same direction, a linear conductor connected with a battery monitoring unit that monitors the battery conditions of the battery cells, a fusible body that is connected between the connection conductor and the linear conductor and fuses when an overcurrent flows between the connection conductor and the linear conductor, and an insulative resin-molded member that contains the fusible body therein. The connection conductor includes holding portions that are disposed inside the resin-molded member, and hold the resin-molded member. The holding portions are formed in at least two places spaced apart from each other.

A fuse block assembly includes a nonconductive base formed with pedestal surfaces attachable to terminals from a location above the base, while providing a clearance between the body of a fuse and the middle portion of the base when a fuse is installed.

A fuse block assembly includes a nonconductive base formed with pedestal surfaces attachable to terminals from a location above the base, while providing a clearance between the body of a fuse and the middle portion of the base when a fuse is installed.

A relay (100) is provided. The relay (100) includes an insulating housing (10) defining an accommodating cavity (11) therein; two binding posts (12) disposed to the insulating housing (10), each having an end extending into the accommodating cavity (11); an insulating plate (20) disposed within the accommodating cavity (11), movable between a first position and a second position, and having two connecting contacts (21) disposed on a first side of the insulating plate (20) facing the binding posts (12); a fuse (30) disposed between the two connecting contacts (21); a mounting base (40) connected to the insulating housing (10); and a push rod (41) movably disposed to the mounting base (40) and connected to the insulating plate (20), in which when the insulating plate (20) is located at the first position, the two connecting contacts (21) abut against the two binding posts (12) respectively, and when the insulating plate (20) is located at the second position, the two connecting contacts (21) detach from the two binding posts (12) respectively.

A relay (100) is provided. The relay (100) includes an insulating housing (10) defining an accommodating cavity (11) therein; two binding posts (12) disposed to the insulating housing (10), each having an end extending into the accommodating cavity (11); an insulating plate (20) disposed within the accommodating cavity (11), movable between a first position and a second position, and having two connecting contacts (21) disposed on a first side of the insulating plate (20) facing the binding posts (12); a fuse (30) disposed between the two connecting contacts (21); a mounting base (40) connected to the insulating housing (10); and a push rod (41) movably disposed to the mounting base (40) and connected to the insulating plate (20), in which when the insulating plate (20) is located at the first position, the two connecting contacts (21) abut against the two binding posts (12) respectively, and when the insulating plate (20) is located at the second position, the two connecting contacts (21) detach from the two binding posts (12) respectively.

A conductor unit includes a connection conductor directly or indirectly connected with at least one electrode terminal in an electrode terminal group of a plurality of battery cells arranged in the same direction, a linear conductor connected with a battery monitoring unit that monitors the battery conditions of the battery cells, a fusible body that is connected between the connection conductor and the linear conductor and fuses when an overcurrent flows between the connection conductor and the linear conductor, and an insulative resin-molded member that contains the fusible body therein. The connection conductor includes holding portions that are disposed inside the resin-molded member, and hold the resin-molded member. The holding portions are formed in at least two places spaced apart from each other.