Heater and glow plug including the same

摘要

A heater of one embodiment of this invention has a resistor having a folded shape, a pair of leads joined to each end of the resistor, an insulating base in which the resistor is buried in the front side thereof and the pair of leads are buried in the rear side thereof, in which the resistor and the leads are overlapped in a direction perpendicular to the axial direction of the leads at junctions between the resistor and the leads and the rear end of the junction between one end of the resistor and one of the leads is located rearward relative to the rear end of the junction between the other end of the resistor and the other lead.

主权项

1. A heater, comprising: a resistor comprising a folded shape; a first lead and a second lead respectively joined to each end of the resistor; and an insulating base in which the resistor is buried at a front side thereof and the first lead and the second lead are buried in a rear side thereof, wherein at junctions between the resistor and the first and second leads, the resistor and the first and second leads being overlapped in a direction perpendicular to an axial direction of the first and second leads, and an endpoint of a rear end of the junction between a first end of the resistor and the first lead is different in the axial direction than an endpoint of a rear end of the junction between a second end of the resistor and the second lead.