A temperature safety resistor assembly includes a hollow shell, a resistor and two conductive components. The resistor is disposed within the shell and at least one of the two conductive components is welded with an end of the resistor by a low temperature solder. An elastic deformation portion is formed on the conductive component and the elastic deformation portion is deformed to accumulate an elastic restoring force. When the current flowing through the conductive component and the resistor is abnormally increased, the temperature of the conductive component is increased till a melting point of the low temperature solder, the solder is melted and the conductive component is bounded from the end of the resistor by the elastic restoring force of the elastic deformation portion so as to cut off the temperature safety resistor assembly and protect the rest of the circuits.

An improved fuse including a fuse body formed of an electrically insulative material. The fuse body defines a cavity which extends from a first end of the fuse body to a second end of the fuse body. A fusible element is disposed within the cavity and extends from a first end face of the first end of the fuse body to a second end face of the second end of the fuse body. Insulated plugs are disposed within the cavity at the first and second ends of the fuse body wherein the plugs adhere to an interior surface of the fuse body and form seals that close the internal cavity. The fuse may further include end terminations that are applied to the ends of the fuse body in electrical contact with the fusible element.

A high-voltage direct-current thermal fuse comprising a high-voltage low-current thermal fuse connected to a high-voltage direct-current circuit. The high-voltage low-current thermal fuse comprises a casing, fusible alloy wires, wherein the fusible alloy wires are connected between the two leads. One of the leads is sequentially sleeved with an arc extinguishing sleeve and a spring. One end of the arc extinguishing sleeve is in contact with the fusible alloy wires; and the other end of the arc extinguishing sleeve is in contact with the spring. One end of the spring is connected to the inner end face of the casing; and the spring is in a compressed state. The high-voltage direct-current thermal fuse further comprises a conventional thermal fuse; or further comprises a current. The high-voltage direct-current thermal fuse solves the problem of timely arc cutting-off and can be directly applied to a high-voltage direct-current circuit.

Various implementations described herein are directed to a method for detecting, by a device, an increase in temperature at certain parts of an electrical system, and taking appropriate responsive action. The method may include measuring temperatures at certain locations within the system and estimating temperatures at other locations based on the measurements. Some embodiments disclosed herein include an integrated cable combining electrical conduction and heat-detection capabilities, or an integrated cable or connector combining electrical conduction with a thermal fuse.

Various implementations described herein are directed to a method for detecting, by a device, an increase in temperature at certain parts of an electrical system, and taking appropriate responsive action. The method may include measuring temperatures at certain locations within the system and estimating temperatures at other locations based on the measurements. Some embodiments disclosed herein include an integrated cable combining electrical conduction and heat-detection capabilities, or an integrated cable or connector combining electrical conduction with a thermal fuse.

Various implementations described herein are directed to a method for detecting, by a device, an increase in temperature at certain parts of an electrical system, and taking appropriate responsive action. The method may include measuring temperatures at certain locations within the system and estimating temperatures at other locations based on the measurements. Some embodiments disclosed herein include an integrated cable combining electrical conduction and heat-detection capabilities, or an integrated cable or connector combining electrical conduction with a thermal fuse.

Various implementations described herein are directed to a method for detecting, by a device, an increase in temperature at certain parts of an electrical system, and taking appropriate responsive action. The method may include measuring temperatures at certain locations within the system and estimating temperatures at other locations based on the measurements. Some embodiments disclosed herein include an integrated cable combining electrical conduction and heat-detection capabilities, or an integrated cable or connector combining electrical conduction with a thermal fuse.

An apparatus for monitoring a battery status, a battery management system (BMS), and an ignition circuit for the battery management system provide a circuit topology capable of monitoring a status of a battery device at all times irrespective of an enabled or disabled state of the BMS. In a specific configuration, based on a structure in which a thermal fuse is provided in a battery device, according to a battery status monitoring signal generated according to a status of a thermal fuse block, an electrical connection of the battery device to a power supply block inside a BMS is enabled or disabled, or an operation trigger for the power supply block is controlled.

An apparatus for monitoring a battery status, a battery management system (BMS), and an ignition circuit for the battery management system provide a circuit topology capable of monitoring a status of a battery device at all times irrespective of an enabled or disabled state of the BMS. In a specific configuration, based on a structure in which a thermal fuse is provided in a battery device, according to a battery status monitoring signal generated according to a status of a thermal fuse block, an electrical connection of the battery device to a power supply block inside a BMS is enabled or disabled, or an operation trigger for the power supply block is controlled.

In one embodiment, a fuse includes a casing, a fuse element housed inside the casing, and one or more arc-quenching-material containers including arc quenching material. Each arc-quenching-material container may be configured proximately to one or more weak spots of the fuse element such that, in an event of an arc, the arc-quenching-material containers are configured to rupture and release the arc quenching material.