Power-supplying member and heating apparatus using the same
AssigneeNGK Insulators, Ltd.
InventorsYoshinobu Goto, Hideyoshi Tsuruta
Life of this patent
Estimating the term…
Abstract
The power-supplying member comprises: a first rod-shaped member connected to at least one of a heating resistor and an electrode; a second rod-shaped member connected to a power supply; and a thermal-function member, which is disposed between the first rod-shaped member and the second rod-shaped member, and which has a smaller axial cross section area and a larger surface area as compared to the first and second rod-shaped members.
Claims9
A power-supplying member, which is disposed in a hollow part of a tubular supporting member, and which supplies power to at least one of a heating resistor and an electrode which are embedded in a ceramic base supported by the tubular supporting member, the power-supplying member comprising:
- a first rod-shaped member connected to said at least one of a heating resistor and an electrode;
- a second rod-shaped member connected to a power supply;
- and
- a thermal-function member, which is disposed between the first rod-shaped member and the second rod-shaped member, and which has a smaller axial cross section area and a larger surface area as compared to the first and second rod-shaped members,
- wherein a ratio of the axial cross sectional area of the thermal-function member to the axial cross sectional areas of the first and second rod-shaped members is not larger than 0.5.
A heating apparatus comprising:
- a ceramic base in which at least one of a heating resistor and an electrode are embedded;
- a tubular supporting member which supports the ceramic base;
- and
- a power-supplying member, which is disposed in a hollow part of the tubular supporting member, and which supplies power to at least one of the heating resistor and the electrode,
- wherein the power-supplying member comprises a first rod-shaped member connected to said at least one of a heating resistor and an electrode a second rod-shaped member connected to a power supply, and a thermal-function member, which is disposed between the first rod-shaped member and the second rod-shaped member, and which has a smaller axial cross section area and a larger surface area as compared to the first and second rod-shaped members,
- wherein a ratio of the axial cross sectional area of the thermal-function member to the axial cross sectional areas of the first and second rod-shaped members is not larger than 0.5.
Dependencies are inferred from the claim text.