Electrically heatable honeycomb configuration having support pins
View Patent ↗A configuration contains a first honeycomb body, which is formed by at least one convoluted or wound stack and has a plurality of channels allowing a flow, wherein a first end of the stack is connected to an electric connection and a second end is connected to an electric ground. The stack contains a plurality of sheet metal foils in electric contact with each other, the foils being structured at least in some regions. At the same time, the honeycomb body has support pins for connecting to a second honeycomb body, the pins have a distance of at least 25 mm from each other along the course of the stack at least outside an inner region. A method introduces support pins into the honeycomb body and a device receives a honeycomb body and/or for positioning support pins. The device enables the installation of the support pins in the honeycomb body.
1. A configuration, comprising:
an electrical terminal;
an electrical ground terminal; and
a first honeycomb body having at least one stack being one of wound and coiled, said stack having a plurality of ducts formed therein and can be traversed by a flow, said stack having a first end connected to said electrical terminal and a second end connected to said electrical ground terminal, said stack having a multiplicity of at least partially structured sheet-metal foils which are in electrical contact with one another, said first honeycomb body having support pins for connecting to a second honeycomb body, said support pins, at least outside an inner region, have a spacing from one another along a profile of said stack of at least 25 mm.
2. The configuration according to claim 1 , wherein said support pins outside said inner region being distributed over a cross-sectional area of said first honeycomb body in such a way as to be at a distance of at least 25 mm from one another.
3. The configuration according to claim 1 , wherein said first honeycomb body has a diameter of at least 100 mm.
4. The configuration according to claim 1 , wherein at least one of said support pins is dimensioned so as to fill said duct in which it is positioned in such a way that said support pin is in contact with surrounding walls, which define said duct, over at least 50% of a circumference situated in said first honeycomb body.
5. The configuration according to claim 1 , wherein said support pins engaging into the second honeycomb body up to a depth of at most 8 mm.
6. The configuration according to claim 1 , wherein at least one of said support pins has at least one tip which is disposed eccentrically with respect to a central axis of said support pin.
7. The configuration according to claim 1 , wherein said at least one stack of said first honeycomb body has a height of at least 10 mm.
8. The configuration according to claim 1 , wherein said inner region of said first honeycomb body encompassing at most 20% of a cross-sectional area of said first honeycomb body.
9. A method for inserting support pins into one of ducts and slots of a first honeycomb body, which comprises the steps of:
positioning the support pins via means of a retaining device; and
placing the support pins into engagement in the ducts or the slots by means of an excitation transversely with respect to a feed movement of the first honeycomb body and of the retaining device relative to one another.
10. The method according to claim 9 , which further comprises subsequently disposing the support pins, together with the first honeycomb body, on a second honeycomb body such that a gap separates the first and second honeycomb bodies, and the support pins are fixed to the first and second honeycomb bodies by means of a brazing process.
11. A device for holding one of a first honeycomb body and for positioning support pins, with the device being excitable in such a way that the device can move substantially transversely with respect to a direction of extent of ducts or slots of the first honeycomb body or with respect to a central axis of the support pins.