Electrical feedthrough
AssigneeVitesco Technologies GmbH
InventorsPeter Hirth, Stefan Ahlers
Life of this patent
Estimating the term…
Abstract
A current feedthrough for an electrically heatable catalytic converter, which has inside it at least one electrical conductor that can be electrically contacted by the current feedthrough, a central electrically conductive inner conductor, which is guided from the interior of the catalytic converter through the outer housing wall thereof, an electrical insulation layer, which surrounds the electrically conductive inner conductor on the radially outer surface thereof, and a metallic outer tube, in which the electrically conductive inner conductor and the electrical insulation layer are accommodated.
Claims9
A current feedthrough for an electrically heatable catalytic converter, wherein the catalytic converter has inside it at least one electrical conductor, configured to be electrically contacted by the current feedthrough, comprising:
- a central electrically conductive inner conductor, which is guided from an interior of the catalytic converter through an outer housing wall thereof;
- an electrical insulation layer, which surrounds the central electrically conductive inner conductor on a radially outer surface thereof;
- and
- a metallic outer tube, in which the central electrically conductive inner conductor and the electrical insulation layer are accommodated,
- wherein the electrical insulation layer at an end lying inside the catalytic converter and/or at an end lying outside the catalytic converter has a longer extent in an axial direction of the current feedthrough than the metallic outer tube.
A current feedthrough for an electrically heatable catalytic converter, wherein the catalytic converter has inside it at least one electrical conductor, configured to be electrically contacted by the current feedthrough, comprising:
- a central electrically conductive inner conductor, which is guided from an interior of the catalytic converter through an outer housing wall thereof;
- an electrical insulation layer, which surrounds the central electrically conductive inner conductor on a radially outer surface thereof;
- and
- a metallic outer tube, in which the central electrically conductive inner conductor and the electrical insulation layer are accommodated,
- wherein the electrical insulation layer is constructed in a number of layers in a radial direction of the current feedthrough, wherein respective individual layers are formed by materials having different coefficients of thermal expansion.
A current feedthrough for an electrically heatable catalytic converter, wherein the catalytic converter has inside it at least one electrical conductor, configured to be electrically contacted by the current feedthrough, comprising:
- a central electrically conductive inner conductor, which is guided from an interior of the catalytic converter through an outer housing wall thereof;
- an electrical insulation layer, which surrounds the central electrically conductive inner conductor on a radially outer surface thereof;
- and
- a metallic outer tube, in which the central electrically conductive inner conductor and the electrical insulation layer are accommodated,
- wherein the electrical insulation layer is arranged between the central electrically conductive inner conductor and the metallic outer tube and is formed from a non-metallic material,
- wherein an oxidic material of the electrical insulation layer is a porous ceramic, wherein the porous ceramic is treated with an additional substance as a pore filler.
Dependencies are inferred from the claim text.