Filter element with guide shaft

Abstract

A Filter element for insertion into a housing of a ventilation unit or air conditioner, comprising a bellows with folds and a front side, which can face a wall of the housing, wherein the folds on the front side define fold cross-sectional surfaces, wherein to the front side at least one guiding slot is assigned and wherein a fold cross-sectional surface has a geometry in the area of a guiding slot that is different from the fold cross-sectional surface of a multiplicity of folds, is, in view of the task of providing an efficient filter element which, after problem-free manufacture is equipped with guiding slots into which guide pins can be inserted, characterized in that a multiplicity of regular fold walls is provided, wherein each two flanking walls flank the guiding slot.

Description

technical field [0001] The invention relates to a filter element. Background technique [0002] A filter element is known from DE 10 2005 048 841 B3, which is installed in the housing of a ventilation system of a motor vehicle. Specifically, in such a filter device, the guide pins of the housing correspond to the guide channels in the filter element. [0003] In this way, a mechanical coding is to be achieved which ensures that only filter elements suitable for the housing are inserted into the housing. [0004] The guide channels are here oriented parallel to the corrugation ridges of the corrugations of the folding corrugated box or parallel to the direction of the folds. Furthermore, the guide channel is aligned parallel to the corrugated wall. [0005] The corrugated box is surrounded by edge strips, in which through-holes are machined. Guide pins pass through these through holes and then run parallel to the corrugated walls or ridges. [0006] The through-hole must...

AI Technical Summary

Problems solved by technology

Said cutter may damage the corrugated box

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