Gas sensor, in particular a lambda probe, and method for production thereof
AssigneeRobert Bosch GmbH
InventorsHelmut Weyl, Hans-Joerg Renz, Lothar Diehl, Juergen Karle
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Abstract
The ceramic sensor body, held inside a housing by a sealing packing, is provided with a circumferential coating of an electrically insulating material in the region of the sealing packing, so that the sensor body remains potential-free with respect to the housing, even when a sealing packing is used that is made of a material having poor electrical insulating qualities. In this manner, a glass putty is used for the sealing packing, which, while having comparatively poor insulating characteristics, provides a good sealing effect at high loading capacity.
Claims5
A method of for manufacturing gas sensors with sensor bodies, comprising:
- producing a flat laminate separable into the sensor bodies at cutting lines;
- one of producing and stamping out slits that penetrate the flat laminate along the cutting lines in areas of the flat laminate provided for a coating with an electrically insulating material;
- and
- filling the areas with the electrically insulating material with an application of the electrically insulating material on at least one of an upper and a lower side of the flat laminate within a strip which covers the slits in a transverse direction;
- wherein the slits penetrate the flat laminate from the upper side of the flat laminate to the lower side of the flat laminate.
A method of for manufacturing gas sensors with sensor bodies, comprising:
- producing a flat laminate separable into the sensor bodies at cutting lines;
- one of producing and stamping out slits that penetrate the flat laminate along the cutting lines in areas of the flat laminate provided for a coating with an electrically insulating material;
- and
- filing the areas with the electrically insulating material with an application of the electrically insulating material on at least one of an upper and a lower side of the flat laminate within a strip which covers the slits in a transverse direction;
- wherein the slits are stamped out.
Dependencies are inferred from the claim text.