| 摘要 |
In comparison to the prior art, the present invention simplifies the configuration and production steps of a ceramic heater-type glow plug, and also prevents damage. A ceramic heater-type glow plug (1) equipped with a ceramic heater (11) and a metal outer cylinder (12), one end of which holds the ceramic heater (11) and the other end of which is inserted into and affixed to an interior hole (143) of a housing (14), wherein the outer-circumferential surface of the ceramic heater (11) has one electrode (115) of the ceramic heater (11), while the rear-end section of the ceramic heater (11) has another electrode (114). Furthermore, this ceramic heater-type glow plug (1) also has a first conductive large-diameter lead section connected to the other electrode (114), a second large-diameter lead section comprising a conductive material which differs from that of the first large-diameter lead section, and connected to the rear-end section of the first large-diameter lead section, a conductive elastic member connected by welding to the rear-end section of the second large-diameter lead section, and an external connection terminal connected to the rear-end section of the elastic member. |
