Electrical connection of a plurality of sheet metal layers of an electrically heatable honeycomb body and corresponding honeycomb body
A metal sheet and electrical connection technology, applied in the direction of catalyst carriers, chemical instruments and methods, separation methods, etc., can solve the problems of electrical connection between stacking and external power supply, etc.
Active Publication Date: 2016-11-23
VTESCO TECH GMBH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] However, there is a problem with the electrical connection of the stack to the external power supply
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] figure 1 A partial region of an electrically heatable honeycomb body 18 which is arranged in the metal housing 7 is shown schematically. The honeycomb body 18 comprises a stack 5 consisting of smooth or finely structured metal sheet layers 1 and alternately arranged corrugated or coarsely structured metal sheet layers 2 , wherein the stack 5 has an uppermost metal sheet layer 3 and The lowermost metal sheet layer 4, both are finely structured in this embodiment. The sheet metal layers 1 , 2 , 3 , 4 terminate at least partially in an intermediate part 13 and are electrically conductively connected to this intermediate part, which in turn is partially electrically conductively connected to the connection pin 12 . As connection techniques, for example resistance welding and / or brazing come into consideration. The connection pin 12 is guided through the metal housing 7 through the bushing 10 and is insulated therefrom by an electrically insulating layer 11 . The insulati...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to the electrical connection of a plurality of sheet metal layers (1, 2, 3, 4) of a honeycomb body (14) on connecting pins (12), wherein the honeycomb body (18) has a metal casing (7) through which connecting pins (12) are guided electrically insulated in bushings (10), and wherein the sheet metal layers (1, 2, 3, 4) are coarse structures arranged alternately Thinned metal sheet (2) and finely structured or smooth metal sheet (1), these metal sheets together form a stack (5) with an uppermost metal sheet layer (3) and a lowermost metal sheet layer (4), The stack has channels (15) through which gas can flow in the axial direction (A) between the sheet metal layers (1, 2, 3, 4). The invention is characterized in that the connecting pins (12) extend approximately perpendicular to the sheet metal layers (1, 2, 3, 4) and thus in the radial direction (R) and pass through at least one intermediate piece (13) with at least two , preferably all metal sheet layers (1, 2, 3, 4) are metal-connected, wherein the uppermost metal sheet layer (3) in the stack (5) is preferably approximately at least 35% of the inner circumference (I) to the metal casing ( 7) extends parallel and is separated from the metal casing only by an air gap (8). The invention permits simple production of a honeycomb body ( 14 ) that is reliable in operation and can be electrically heated very uniformly.
Description
technical field [0001] The invention relates to the field of electrically heatable honeycomb bodies, which are used in particular for exhaust gas treatment systems of internal combustion engines, preferably in motor vehicles. For example, electrically heatable honeycomb bodies are required in order to heat components in exhaust gas treatment systems and thereby achieve or maintain a defined minimum temperature for defined chemical reactions, in particular also for catalytic activation reactions. This is used, for example, in exhaust gas catalytic converters, particle filters and / or devices for reducing nitrogen oxides. Background technique [0002] A typical design of such an electrically heatable honeycomb body is described, for example, in WO 96 / 10127. EP1 967712 also describes the construction of an electrically heatable honeycomb body. Both documents show the possibility of supporting such an electrically heatable honeycomb body (electrically insulating) on an adjace...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/20F01N3/28
CPCF01N3/2026F01N3/281F01N2330/02F01N2330/321F01N2330/42F01N2330/44Y02T10/12F01N3/027F01N3/20F01N3/28B01D53/8678B01D2255/90
Inventor R·布吕科F·库尔斯P·希尔特T·黑里希
Owner VTESCO TECH GMBH