Title:
CERAMIC HEATER
Document Type and Number:
WIPO Patent Application WO/2010/050380
Kind Code:
A1
Abstract:
There has been such a problem that gaps are generated or cracks are generated in a base body due to a momentary difference between the thermal expansion of a heat generating body and that of the base body in the abnormal cases, such as the case wherein a high current rushes and flows just after starting operation.
Disclosed is a ceramic heater (10) wherein a heat generating body (2) is embedded in a base body (1) composed of ceramic, and the heat generating body (2) has, on the surface thereof, a hollow (5) filled with the ceramic. Even in the case where a large thermal stress is generated between the heat generating body (2) and the base body (1) due to the thermal expansion difference, since the hollow (5) filled with the ceramic is provided on the base body (1), generation of gaps between the heat generating body (2) and the base body (1) and generation of cracks in the base body (1) can be eliminated even in the longitudinal direction of the heat generating body (2) to which the thermal stress is heavily applied.
More Like This:
| JPS61190885 | MANUFACTURE OF SHEATHED HEATER |
| JPS58176890 | HEATING WIRE FOR SHEATHED HEATER |
| WO/2009/057595 | CERAMIC HEATER, AND OXYGEN SENSOR AND HAIR IRON EMPLOYING THE CERAMIC HEATER |
Inventors:
YAMAMOTO KEN (JP)
Application Number:
PCT/JP2009/068046
Publication Date:
May 06, 2010
Filing Date:
October 20, 2009
Export Citation:
Assignee:
KYOCERA CORP (JP)
YAMAMOTO KEN (JP)
YAMAMOTO KEN (JP)
International Classes:
H05B3/48; F23Q7/00
Foreign References:
| JP2007335397A | 2007-12-27 | |||
| JPS6244975A | 1987-02-26 | |||
| JP2007335397A | 2007-12-27 |
Other References:
See also references of EP 2343951A4
Download PDF: