Provided is a superconducting fault current limiter having a composite insulating structure. The superconducting fault current limiter includes: a superconducting current limiting unit, an inner composite insulating cylinder, an outer composite insulating cylinder and a low-temperature container. The outer composite insulating cylinder is sleeved inside the low-temperature container; the inner composite insulating cylinder is sleeved inside the outer composite insulating cylinder; the superconducting current limiting unit is sleeved inside the inner composite insulating cylinder. The superconducting current limiting unit and the inner composite insulating cylinder are securely connected through a first support, and the low-temperature container and the outer composite insulating cylinder are securely connected through a second support.

A plurality of resistors are disclosed herein. The resistor may include one or more resistive elements and a plurality of conductive portions. Openings or slots, which can be configured to adjust temperature coefficient or resistance (TCR) values of the resistor, are formed in the resistive elements. The shape, quantity, and orientation of the openings or slots can vary. In one aspect, header assemblies are provided for securing or holding pins relative to the resistors.

A plurality of resistors are disclosed herein. The resistor may include one or more resistive elements and a plurality of conductive portions. Openings or slots, which can be configured to adjust temperature coefficient or resistance (TCR) values of the resistor, are formed in the resistive elements. The shape, quantity, and orientation of the openings or slots can vary. In one aspect, header assemblies are provided for securing or holding pins relative to the resistors.

Provided is a superconducting fault current limiter having a composite insulating structure. The superconducting fault current limiter includes: a superconducting current limiting unit, an inner composite insulating cylinder, an outer composite insulating cylinder and a low-temperature container. The outer composite insulating cylinder is sleeved inside the low-temperature container; the inner composite insulating cylinder is sleeved inside the outer composite insulating cylinder; the superconducting current limiting unit is sleeved inside the inner composite insulating cylinder. The superconducting current limiting unit and the inner composite insulating cylinder are securely connected through a first support, and the low-temperature container and the outer composite insulating cylinder are securely connected through a second support.

A connector for providing electronic communication with an electronic device is disclosed. The connector can comprise a substrate comprising layers of non-conductive material and conductive material. The connector can include an interface member mounted to the substrate and electrically connected with the conductor. A positive temperature coefficient (PTC) fuse can be embedded in the substrate and electrically connected with the conductor and the interface member. At least a portion of the PTC fuse can be disposed directly below the interface member.

The present disclosure relates to a modular current limiting resistor comprising a plurality of plate resistors, wherein the plate resistors each comprise a pair of coupling pieces and a conducting line integrally formed with the coupling pieces and having a zigzag shape between the coupling pieces; a pair of support frames which support the stacked plate resistors; a plurality of coupling members which pass through one of the support frames, pass the coupling pieces, and are inserted into the plate resistors; a plurality of conductor rings disposed between the plate resistors while passing through and being inserted into the coupling members, and which electrically connect the conducting line on each of the plate resistors; and at least one unit module comprising a plurality of insulating rings disposed between the plate resistors while passing through and being inserted into the coupling members so as to insulate the plate resistors.

The present disclosure relates to a modular current limiting resistor comprising a plurality of plate resistors, wherein the plate resistors each comprise a pair of coupling pieces and a conducting line integrally formed with the coupling pieces and having a zigzag shape between the coupling pieces; a pair of support frames which support the stacked plate resistors; a plurality of coupling members which pass through one of the support frames, pass the coupling pieces, and are inserted into the plate resistors; a plurality of conductor rings disposed between the plate resistors while passing through and being inserted into the coupling members, and which electrically connect the conducting line on each of the plate resistors; and at least one unit module comprising a plurality of insulating rings disposed between the plate resistors while passing through and being inserted into the coupling members so as to insulate the plate resistors.

A shunt resistor 10, 110 includes a flat resistive element 11; a first electrode block 12 that is made of a conductive metal material and is laminated on a lower surface 11a of the resistive element 11; and a second electrode block 13, 113 that is made of a conductive metal material and is laminated on an upper surface 11b of the resistive element 11, in which the second electrode block 13, 113 is a block body including an electrode portion 14 connected to the resistive element 11 and an extension portion 15, 115 extending downward from a side surface of the electrode portion 14.

A shunt resistor 10, 110 includes a flat resistive element 11; a first electrode block 12 that is made of a conductive metal material and is laminated on a lower surface 11a of the resistive element 11; and a second electrode block 13, 113 that is made of a conductive metal material and is laminated on an upper surface 11b of the resistive element 11, in which the second electrode block 13, 113 is a block body including an electrode portion 14 connected to the resistive element 11 and an extension portion 15, 115 extending downward from a side surface of the electrode portion 14.

A surface-mounted polymer PTC overcurrent protection element having a small package size, comprising a PTC chip, an insulating layer (30), end electrodes (41, 42), and at least one conductive member (60). A dividing gap is designed on a first conductive electrode (21) to form first and second conductive areas (211, 212); the conductive member (60) is arranged at the edge or at least a corner of the first conductive area (211) side of the PTC chip, is used for conducting the first conductive area (211) and a second conductive electrode (22) on the PTC chip, and is not in contact with the end electrodes (41, 42); the main portion comprised in the dividing gap (70) of the first conductive electrode (21) is parallel to the longitudinal direction of the first end electrode (41) and the second end electrode (42). Also provided is a preparation method for the protection element. Thus, the miniaturized overcurrent protection element can satisfy the current PCB process to achieve requirements of mass production. It is convenient to design an overcurrent protection element resistance scheme, and reduce adjustment of a PTC core material formulation.