Circuit protection device
AssigneeSmart Electronics Inc.
InventorsDoo Won Kang, A Lam Shin
Life of this patent
Estimating the term…
Abstract
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of electrodes installed on both sides of the resistant heating element, and a first lead wire and a second lead wire withdrawn from the pair of electrodes, respectively, and a thermal fuse which is accommodated in the case and includes a thermal fuse body and a third lead wire and a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.
Claims12
A circuit protection device comprising:
- a case;
- a negative temperature coefficient thermistor which is accommodated in the case and comprises a resistant heating element, a pair of electrodes installed on both sides of the resistant heating element, a first lead wire and a second lead wire withdrawn from the pair of electrodes, and a first pin connected to the first lead wire, respectively;
- and
- a thermal fuse which is accommodated in the case and comprises a thermal fuse body and a third lead wire and a fourth lead wire connected to both ends of the thermal fuse body, and a second pin connected to the fourth lead wire, respectively,
- wherein the second lead wire and the third lead wire are connected to each other in the case,
- wherein a first guide groove configured to guide the first pin to be withdrawn outward from the case and a second guide groove configured to guide the second pin to be withdrawn outward from the case are formed in the case, and
- wherein the first pin and the second pin comprise plate-shaped bodies having one side connected to the first lead wire and the fourth lead wire, respectively, and each comprise at least one extending portion extending from an other side of the body with a width smaller than that of the body.
A circuit protection device comprising:
- a case;
- a first negative temperature coefficient thermistor which is accommodated in the case and comprises 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electrodes installed on both sides of the first resistant heating element, and a first lead wire and a second lead wire withdrawn from the pair of electrodes, respectively;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 second negative temperature coefficient thermistor which is accommodated in the case and comprises a second resistant heating element, a pair of electrodes installed on both sides of the second resistant heating element, and a third lead wire and a fourth lead wire withdrawn from the pair of electrodes, respectively;
- and
- a thermal fuse which is accommodated in the case and comprises a thermal fuse body and a fifth lead wire and a sixth lead wire connected to both ends of the thermal fuse body, respectively,
- wherein the first lead wire and the third lead wire are connected to each other in the case, and
- wherein the second lead wire, the fourth lead wire, and the fifth lead wire are connected to one another in the case.
Dependencies are inferred from the claim text.