Electromagnetically shielded housing having metal parts snap-connected via a spring contact strip

US6291765A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Siegfried Kurrer · Wendelstein, DE
• Werner Körber · Betzenstein, DE
• Ernst Billenstein · Burgbernheim, DE
• Kurt-Michael Schaffer · Seckau, AT

Key dates

• Filing date: Sep 14, 1998
• Grant date: Sep 18, 2001
• Expiry date: Sep 14, 2018

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K9/0016
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An electromagnetically shielded housing, in particular a subrack, has metal housing parts and at least one spring contact strip (FE). The spring contact strip is joined to a first housing part (BE) and is shaped such that the first housing part simultaneously makes contact with and is snap-connected to a second housing part (QV). When the electromagnetically shielded housing is fashioned as a subrack, a subrack shielding plate corresponds to the first housing part and a transverse rail corresponds to the second housing part. The stress-free snap-connection of the subrack shielding plate and transverse rail provided by the spring contact strip requires no additional compression. It is not necessary to screw down the subrack shielding plate, unless, for example, increased stability is desired. It is particularly advantageous if a distal edge of the preferably angled-off edge region (KE) of the subrack shielding plate is recessed into the housing and does not bend back out from the transverse rail. This avoids having the edge region protrude from the housing and produces optimum electro-magnetic shielding.