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IP and EMC-protection with outer sheet metal cladding for out- and indoor electrical cabinet

IP.com Disclosure Number: IPCOM000241754D
Publication Date: 2015-May-28
Document File: 2 page(s) / 29K

Publishing Venue

The IP.com Prior Art Database

Related People

Juha Hamari: INVENTOR [+3]

Abstract

This document discloses a design which enables simple and cost effective arrangement for a combined IP (ingress protection) and EMC/RFI/EMI protection for an electrical cabinet which can be installed indoor or outdoor.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 52% of the total text.

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1.Abstract

This document discloses a design which enables simple and cost effective arrangement for a combined IP (ingress protection) and EMC/RFI/EMI protection for an electrical cabinet which can be installed indoor or outdoor.


2.Background

In an outdoor electrical cabinet there is a need to provide moisture and dust withstanding design in order to protect the electrical components installed inside the enclosure. Also the enclosure needs to provide protection for the EMC/RFI/EMI issues. Usually weather proofing and EMC proofing are done separately. Having separate design for the IP protection and EMC protection can create additional costs in the manufacturing.

Often when two metal sheets are combined to form a sealing between them, one metal sheet has a groove of some sort and the other metal sheet has a part which will enter the groove of the first metal sheet. There usually is a seal between the two metal sheets.

Other know method is having two metal sheets with aligned grooves in both of them at the adjoining part and a seal is placed to the joined groove.


3.New solution

In the new solution the amount of work tasks in the manufacturing process is kept minimal in order to keep the design simple and cost effective. The new solution is show in the Fig 1. A groove is pressed to the first metal sheet for example by a rolling tool in the same manufacturing work station as the manufacturing of the sheet itself. A rubber seal is extruded to the groove and the sheet is left aside until the rubber material is dry. The height of the extruded rubber will be adjusted to exceed...