# US 10,321,595 B2 · Box-frame housing and a method of manufacture

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- Number: US 10,321,595 B2
- Document ID: US10321595B2
- Status: Granted
- Kind: B2
- Application number: 14/557,032
- Filed: 2014-12-01
- Published: 2015-07-09
- Granted: 2019-06-11
- Earliest claimed: 2010-08-23
- Assignees: Rohde & Schwarz GmbH & Co. KG
- Applicants: Rohde & Schwarz GmbH & Co. KG
- Inventors: Hermann Muhr; Andreas Fischl; Wolfgang Kufer; Hans-Dieter Koenig; Helmut Hingrainer
- Web page: https://patentgrep.com/patent/US10321595B2

## CPC

- H05K 5/04: Metal casings
- H05K 5/0213: {Venting apertures; Constructional details thereof}
- H05K 7/14: Mounting supporting structure in casing or on frame or rack
- H05K 7/1418: {Card guides, e.g. grooves (H05K7/1425 takes precedence)}
- H05K 7/1424: {Card cages}
- H05K 9/0016: {having a spring contact}
- H05K 13/00: Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- B23K 33/00: Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- Y10T 29/49833: Punching, piercing or reaming part by surface of second part
- Y10T 29/49904: Assembling a subassembly, then assembling with a second subassembly
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A box-frame housing for the installation of electronic modules has frame elements and side walls and provides a subdivision into sub-regions, which are limited by dividing walls. The frame elements and the side walls and the dividing walls provide at least one recess and/or at least one edge projection. A projection engages in a recess and both are connected to one another by welding.

## Claims

### Claim 1

A method for manufacturing a box-frame housing for installation of electronic modules, said method comprising:
forming a box-frame housing that provides frame elements and side walls, and also provides a division into sub-regions, wherein the sub-regions are limited by dividing walls,
wherein the frame elements, the side walls and the dividing walls are fitted together so that a projection engages respectively in a recess, and the projection and the recess are connected to each other by welding,
wherein guide openings with projecting collars are arranged in the side walls or the dividing walls in two parallel straight lines at a distance from one another, and parallel to an insertion direction of an electronic module,
wherein the projecting collars face towards one another,
wherein a spring holds a printed circuit board in the guide openings,
wherein the spring is connected in a detachable manner to one of the side walls or the dividing walls so that the spring hooks into a region limited by the guide openings which are spaced at the distance from one another, and
wherein holding tabs are inserted into retaining openings to adjust the spring in a variable manner.

### Claim 2 (depends on 1)

The method according to claim 1,
wherein one or more ventilation zones, with a plurality of ventilation openings, are introduced into the side walls or the dividing walls, and a transverse embossing is introduced into the side walls or the dividing walls in a region of the ventilation zones.

### Claim 3 (depends on 2)

The method according to claim 2,
wherein the retaining openings, the guide openings and the ventilation openings are formed by punching; and
wherein a centering lug is formed by punching and bending.