Smart Electronics Inc.

A Lam Shin

Doo Won Kang

Hwang Je Mun

Hyun Chang Kim

The present invention relates to a circuit protection device including: a device comprising a heating element configured to comprise a body and a pair of electrodes formed on the body, and a pair of lead wires connected, respectively, to the pair of electrodes; and a case having an independent accommodating space formed therein to accommodate at least the heating element, wherein the case includes at least one heat insulating layer disposed in the vicinity of the accommodating space.

Circuit protection device

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electrodes installed on both sides of the first resistant heating element, and a first lead wire and a second lead wire withdrawn from the pair of electrodes, respectively, a thermal fuse which is accommodated in the case and includes a thermal fuse body and a third lead wire and a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electrodes installed on both sides of the second resistant heating element, and a fifth lead wire and a sixth lead wire withdrawn from the pair of electrodes, respectively.

Circuit protection element

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of electrodes installed on both sides of the resistant heating element, and a first lead wire and a second lead wire withdrawn from the pair of electrodes, respectively, and a thermal fuse which is accommodated in the case and includes a thermal fuse body and a third lead wire and a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.

Disclosed is a fuse resistor provided on an electrical circuit to protect the electrical circuit and elements. The fuse resistor includes a substrate on which first and second resistive terminals and fuse terminals are formed, first and second resistive elements surface-mounted on the first and second resistive terminals and dividing applied current or voltage, and a temperature fuse surface-mounted on the fuse terminals and broken by heat generated from the first and second resistive elements. If overcurrent or overvoltage is applied, the first and second resistive elements generate heat and the temperature fuse is broken by the generated heat.

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Busan, South Korea

A Lam Shin