A recyclable fuse includes a first contact and a second contact, and a current control unit allowing current to flow by electrically connecting the first contact and the second contact with each other when a temperature of the current control unit is less than a predetermined first temperature and preventing the current from flowing by electrically interrupting the first contact and the second contact from each other when the temperature of the current control unit is equal to or more than the predetermined first temperature.

An electrical fuse assembly includes electrically conductive first and second electrodes, and a bimetallic fuse element. The bimetallic fuse element electrically connects the first and second electrodes. The bimetallic fuse element is configured to disintegrate, and thereby disconnect the first electrode from the second electrode, in response to a current exceeding a prescribed trigger current of the bimetallic fuse element for at least a prescribed duration.

A surge protective device (SPD) module includes a varistor and an electrical conductor. The varistor includes a hole defined therein and extending through the varistor. The electrical conductor extends through the hole in the varistor.

The invention relates mainly to a starter for a heat engine of a motor vehicle comprising: at least one electromagnetic contactor comprising a positive output terminal, at least one electric motor, the electric motor comprising: at least one brush cage (43), at least one positive brush (35) mounted in the brush cage (43), an electrical path (91) between the positive brush (35) and the positive output terminal (32), and at least one thermal protection (96) situated in the electrical path (91), in which the thermal protection is suitable for disconnecting the two elements (93, 95) when the thermal protection has a temperature above a temperature threshold to electrically disconnect the positive output terminal relative to the positive brush (35).

An electric wire protection device comprising a pyrotechnic cutoff switch disposed between an electric wire connecting a load and a vehicle-mounted power supply that is connected to a reference potential. The pyrotechnic cutoff switch is disposed between the electric wire and has: a conductive part through which current between the vehicle-mounted power supply and the load flows; a cutting blade cuts the conductive part; a drive part, actuated by gunpowder, propels the cutting blade in a direction in which the conductive part is to be cut; and first and second terminals that input and output current that drives the drive part. In addition, the electric wire protection device comprises: a conductive wire having one end thereof connected to the electric wire and the other end thereof connected to the first terminal; and a diode having an anode connected to the reference potential and a cathode connected to the second terminal.

In a thermal protection circuit with two electrical connection terminals for an electrical device to be protected from overheating and at least one temperature-dependent switch, at least one electronic semiconductor switch for DC voltage is arranged.

A power supply circuit for electronic equipment that might be affected by overheating or by a fire, the power supply circuit including a bistable switch switchable between a first state in which the input terminal is connected to the output terminal, and a second state in which the input terminal is not connected to the output terminal, a first coil, and a second coil, the bistable switch being configured to switch to the first state when the magnetic field induced by the second coil is greater than the magnetic field induced by the first coil, and to switch to the second state when the magnetic field induced by the first coil is greater than the magnetic field induced by the second coil.

The present invention discloses a protective structure, plug, socket and method assuring a live wire and a neutral wire to be powered off simultaneously when overheating. The present invention limits a live wire spring plate from contacting with a live wire conductive plate, and a neutral wire spring plate from contacting with a neutral wire conductive plate, such that when the live wire spring plate and the live wire conductive plate are overheated or the neutral wire spring plate and the neutral wire conductive plate are overheated, the live wire spring plate, the live wire conductive plate, the neutral wire spring plate and the neutral wire conductive plate can be separated apart at a same time.

The present invention relates to the technical field of plugs and sockets for electrical appliances. Disclosed are a surface contact plug and socket, comprising a matching plug and socket; a plug contact piece connected with a plug electric wire is arranged on the lower surface of the plug; and a socket contact piece connected with a socket electric wire is arranged on the upper surface of the socket; when the plug is inserted into the socket, the plug contact piece vertically or obliquely meets the socket contact piece to cause surface contact electrification. The surface contact plug and socket of the present invention employ surface contact between contact pieces, enlarge the contact area and improve current transmission capacity since the plug and socket are of the same size, and therefore the contact is always reliable, and the more the plug and the socket are used, the more reliable the contact is.

The application discloses a temperature control switch circuit includes a switch circuit body, and also includes a first temperature control unit or a second temperature control unit for preventing the switch circuit body from being damaged by temperature, and the first temperature control unit or the second temperature control unit is electrically connected with the switch circuit body. The present disclosure has the following advantages. The first temperature control unit or the second temperature control unit is additionally arranged in the switch circuit body. The temperature is sensed or detected by the first temperature control unit or the second temperature control unit. When the temperature exceeds the set temperature, commercial power is unavailable, and a load connected with the switch circuit cannot operate, so that each unit in the switch circuit is protected.