Title:
HEATER AND GLOW PLUG EQUIPPED WITH THE SAME
Document Type and Number:
Japanese Patent JP2015125947
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a heater in which changes in resistance of a lead is suppressed.SOLUTION: A heater 1 comprises: a ceramic body 2; a heat element 3 embedded in the ceramic body 2; and a lead 4. The lead 4 has: a first region 41 part of which is exposed from the front face, and which expands as being away from the front face; and a second region 42 which is adjacent to the first region 41 and expands as being away from the first region 41. On a cross section perpendicular to the front face and extends along the lead 4, when a first tangent line 410 on a boundary face between the first region 41 and the ceramic body 2 and a second tangent line 420 on a boundary face between the second region 42 and the ceramic body 2 are drawn, an inclination angle θof the second tangent line 420 with respect to the front face is greater than an inclination angle θof the first tangent line 410 with respect to the front face. Even if cracking occurs between the first region 41 and the ceramic body 2, it can be prevented from progressing inside the lead 4.
Inventors:
TAIMURA KOTARO
Application Number:
JP2013270700A
Publication Date:
July 06, 2015
Filing Date:
December 27, 2013
Export Citation:
Assignee:
KYOCERA CORP
International Classes:
H05B3/03; F23Q7/00; H05B3/10; H05B3/48
Domestic Patent References:
| JP2007265893A | 2007-10-11 |
Foreign References:
| WO2009096477A1 | 2009-08-06 | |||
| WO2008105327A1 | 2008-09-04 | |||
| WO2013047849A1 | 2013-04-04 |