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US20060138914A1 - Housing, especially housing for containing a printed circuit board or the like, and method for producing the same - Google Patents

Housing, especially housing for containing a printed circuit board or the like, and method for producing the same Download PDF

Info

Publication number
US20060138914A1
US20060138914A1 US10/560,813 US56081305A US2006138914A1 US 20060138914 A1 US20060138914 A1 US 20060138914A1 US 56081305 A US56081305 A US 56081305A US 2006138914 A1 US2006138914 A1 US 2006138914A1
Authority
US
United States
Prior art keywords
housing
lug
bore
receptacle
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/560,813
Other languages
English (en)
Inventor
Gerard Bour
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive France SAS
Original Assignee
Siemens VDO Automotive SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens VDO Automotive SAS filed Critical Siemens VDO Automotive SAS
Assigned to SIEMENS VDO AUTOMOTIVE reassignment SIEMENS VDO AUTOMOTIVE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOUR, GERARD
Publication of US20060138914A1 publication Critical patent/US20060138914A1/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/10—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
    • H05K5/13—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing assembled by screws

Definitions

  • the present invention relates to a housing, in particular a housing intended to contain a printed circuit board (PCB) or the like, and to a process for obtaining it.
  • PCB printed circuit board
  • a housing within which electronic components are placed on a printed circuit board.
  • This housing comprises a lid which may, if appropriate, be formed by the printed circuit board.
  • the lid is screwed onto the housing so as to close the latter in a reversible manner.
  • the screws used to be screws which themselves generate their tapped hole when being screwed in, such as self-tapping or thread-forming screws.
  • flakes are produced and they drop inside the housing, the screws being introduced from the outside of said housing.
  • the flakes thus produced often drop onto the printed circuit board. They may then create a short circuit between the leads of the electronic components situated on the printed circuit board or between two tracks of this circuit board. A flake may thus render an electronic device unusable.
  • the present invention provides a housing which, by virtue of its design, prevents a flake from reaching the printed circuit board intended to be accommodated within said housing.
  • the proposed housing does not entail any significant extra cost over a housing of the prior art.
  • the invention proposes a housing, in particular a housing intended to contain electronic components or the like, comprising a support having a bore for receiving a fixing screw.
  • this housing additionally comprises, facing the bore for receiving the screw, a receptacle extending inside the housing.
  • the receptacle extends from the support having the bore and, with the exception of the region in which the bore is situated, forms a closed space with this support. Once the screw is in place, the flakes are thus perfectly contained and are therefore unable to create any short circuits in the components.
  • the receptacle is, for example, obtained by stamping. In a preferred embodiment, it has a generally tubular shape of circular cross section which is closed at its end opposed to the bore.
  • the support originating from the housing and having the bore may take the form of a lug folded over with respect to a wall of the housing.
  • the receptacle is then, advantageously, borne by a tab folded onto the lug.
  • the present invention also relates to a cut and stamped sheet-metal blank, characterized in that it has:
  • Such a sheet-metal blank makes it possible for a housing according to the invention to be produced from a single piece of metal.
  • a substantially rectangular cutout is advantageously provided between the tab and the lug so as to form a hinge.
  • the present invention also proposes a process for producing a housing, in which a sheet-metal blank is cut and then folded, characterized in that it comprises the steps which follow:
  • FIG. 1 is a partial view of a housing according to the invention in the region of a fixing screw
  • FIG. 2 is a view in section taken along the section line II-II of FIG. 4 ,
  • FIG. 3 is a front view of the elements represented in FIG. 1 ,
  • FIG. 4 is a view taken along the section line IV-IV of FIG. 3 .
  • FIG. 5 is a top view of the cut-out section of a sheet-metal blank for obtaining the portion represented in FIG. 1 , and
  • FIG. 6 is a view in section taken along a section line VI-VI of FIG. 5 .
  • FIG. 1 shows, viewed from below, the mounting of a lid 2 on a housing 4 .
  • the lid 2 may be a sheet-metal lid or one made of any other material, or else it may also be a printed circuit board.
  • the components fixed to this printed circuit board are then oriented toward the inside of the housing when this printed circuit board is fixed to the housing 4 .
  • a screw 6 can be seen in FIGS. 2 to 4 for keeping the lid 2 on the housing 4 .
  • This screw is preferably a thread-forming screw which provides excellent fastening without the use of a nut.
  • FIGS. 1 to 4 of the drawing show a portion of a side wall 8 of the housing 4 .
  • the lid 2 is positioned perpendicularly to this side wall 8 .
  • the side wall 8 comprises a lug 10 made in one piece with the side wall 8 and folded over at a right angle to this wall toward the inside of the housing.
  • a bore 12 for receiving the thread-forming screw 6 is made in this lug 10 .
  • the screw 6 when the screw 6 is screwed into the bore 12 it deforms the lug 10 around the bore 12 so as to form a tapped hole in the lug 10 .
  • the lug 10 bears a receptacle 14 .
  • the latter is substantially circular cylindrical in shape and is tubular. It extends perpendicularly to the plane of the lug 10 (itself parallel to the lid 2 ).
  • the receptacle 14 rests on the lug 10 . It is open toward this lug 10 and is closed at its opposed end.
  • the end wall 16 that is to say the wall situated away from the lug 10 , is for example of hemispherical shape.
  • the edge of the receptacle on the side facing the lug 10 surrounds the bore 12 made in this lug 10 .
  • the receptacle 14 thus creates a closed space whose only opening is the bore 12 and which is completely closed when a screw 6 is situated in this bore.
  • the receptacle 14 is formed on a tab 18 forming only a single piece with the lug 10 . This tab 18 is folded over at 180° with respect to the lug 10 . The tab 18 is joined to the lug 10 by two fine strips of metal forming a hinge 20 . The receptacle 14 and its end wall 16 are obtained for example by stamping the tab 18 .
  • the lug 10 and the receptacle 14 may advantageously form only a single piece with the wall 8 of the housing 4 . It is possible by cutting, stamping and folding to obtain the lug 10 for mounting the screw 6 and the receptacle 14 which acts as a flake trap for the flakes produced when the thread-forming screw 6 is screwed into its bore 12 for the first time.
  • FIG. 5 shows, following cutting and prior to folding, the detail of a metal sheet used for producing the housing 4 represented in FIGS. 1 to 4 . This FIG. 5 depicts the wall 8 , the lug 10 in which the bore 12 is made, and the tab 18 bearing the receptacle 14 and joined to the lug 10 by the hinge 20 .
  • the lug 10 is attached to the wall 8 .
  • the tab 18 for its part, is attached to the wall 8 only by way of the lug 10 and the hinge 20 .
  • the sheet-metal blank used for producing the housing 4 has a rectangular cutout 22 separating the lug 10 from the tab 18 .
  • the stamping procedure forming the receptacle 14 may be carried out immediately before cutting the metal sheet. This operation is performed on the same press using an appropriate tool. Once the cutting operation has been carried out, two folding operations are carried out successively. The tab 18 is folded through 180° about a first folding axis 24 and then the assembly formed by the tab 18 and the lug 10 is folded through 90° about a second folding axis 26 so as to be turned toward the inside of the housing 4 .
  • the lug 10 and the tab 18 are not necessarily placed on an edge of the side wall 8 , but may be obtained at any point on said side wall by forming a cut in said wall 8 over the periphery of the assembly formed by the lug 10 and tab 18 , with the exception of the side of the lug 10 corresponding to the second folding axis 26 .
  • the shape of the receptacle may differ from that described.
  • the process used to obtain it, for its part, may also be different.
  • a receptacle consisting of a part which is separate from the housing may be envisaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Connection Of Plates (AREA)
US10/560,813 2003-06-25 2004-05-13 Housing, especially housing for containing a printed circuit board or the like, and method for producing the same Abandoned US20060138914A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0307669 2003-06-25
FR0307669A FR2856882B1 (fr) 2003-06-25 2003-06-25 Boitier, notamment boitier destine a contenir un circuit imprime ou similaire et procede pour l'obtention de celui-ci
PCT/EP2004/005136 WO2004114735A1 (fr) 2003-06-25 2004-05-13 Boitier, notamment boitier destine a contenir un circuit imprime ou similaire et procede pour l’obtention de celui-ci

Publications (1)

Publication Number Publication Date
US20060138914A1 true US20060138914A1 (en) 2006-06-29

Family

ID=33515395

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/560,813 Abandoned US20060138914A1 (en) 2003-06-25 2004-05-13 Housing, especially housing for containing a printed circuit board or the like, and method for producing the same

Country Status (7)

Country Link
US (1) US20060138914A1 (fr)
EP (1) EP1637018B1 (fr)
JP (1) JP2007507085A (fr)
CN (1) CN100518453C (fr)
DE (1) DE602004014929D1 (fr)
FR (1) FR2856882B1 (fr)
WO (1) WO2004114735A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2886507B1 (fr) * 2005-05-25 2010-11-05 Siemens Vdo Automotive Boitier destine a contenir des composants electroniques ou similaires
DE102007052152A1 (de) * 2007-10-31 2009-05-07 Robert Bosch Gmbh Navigationssystem
JP2010092231A (ja) * 2008-10-07 2010-04-22 Panasonic Corp 情報処理装置
JP6173227B2 (ja) * 2014-01-27 2017-08-02 三菱電機株式会社 ネジ締結構造および電子機器

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US112870A (en) * 1871-03-21 Improvement in combined potato-planters and diggers
US2797720A (en) * 1953-12-14 1957-07-02 Gen Motors Corp Sheet metal nut with screw slot having frangible serrations
US2878905A (en) * 1956-03-05 1959-03-24 Gregg C Langermeier Molded cap for sheet metal screws and the like
US3857349A (en) * 1973-07-19 1974-12-31 Amp Inc Method for fabricating a threaded tap by stamping
US4987761A (en) * 1988-07-11 1991-01-29 Saccoccio August J Method of forming a device including an integrally formed nut
US5039264A (en) * 1988-12-01 1991-08-13 The Monadnock Company Scratch resistant clip-on nut
US5246324A (en) * 1991-10-17 1993-09-21 Pioneer Electric Corporation Structure for mounting an instrument on a body
US5538377A (en) * 1994-04-11 1996-07-23 Multifastener Corporation Enclosed nut retainer
US5713707A (en) * 1995-05-26 1998-02-03 Illinois Tool Works, Inc. U-nut and stand-off fastener
US5978232A (en) * 1996-04-22 1999-11-02 Samsung Electronics Co., Ltd. Computer body with a fixing device
US20020112870A1 (en) * 1999-09-17 2002-08-22 Toshiki Kobayashi Casing for electronic control devices
US20050029909A1 (en) * 2003-08-08 2005-02-10 Kenji Kitatani Mounting structure of resin part on chassis, and method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8705154U1 (de) * 1987-04-07 1988-08-04 Siemens AG, 1000 Berlin und 8000 München Zweiteiliges Gehäuse für ein Haushaltsgerät
DE3736986A1 (de) * 1987-10-31 1989-05-11 Grundig Emv Einrichtung zum befestigen einer bodenplatte
DE19548205C1 (de) * 1995-12-22 1997-01-16 Bopla Gehaeuse Systeme Gmbh Gehäuse aus Blechelementen
DE20312631U1 (de) * 2003-08-14 2003-10-09 Richard Wöhr GmbH, 75339 Höfen Modular aufgebautes stationäres und/oder mobiles Gehäusesystem mit Schalenabdeckung und Teilschalenboden

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US112870A (en) * 1871-03-21 Improvement in combined potato-planters and diggers
US2797720A (en) * 1953-12-14 1957-07-02 Gen Motors Corp Sheet metal nut with screw slot having frangible serrations
US2878905A (en) * 1956-03-05 1959-03-24 Gregg C Langermeier Molded cap for sheet metal screws and the like
US3857349A (en) * 1973-07-19 1974-12-31 Amp Inc Method for fabricating a threaded tap by stamping
US4987761A (en) * 1988-07-11 1991-01-29 Saccoccio August J Method of forming a device including an integrally formed nut
US5039264A (en) * 1988-12-01 1991-08-13 The Monadnock Company Scratch resistant clip-on nut
US5246324A (en) * 1991-10-17 1993-09-21 Pioneer Electric Corporation Structure for mounting an instrument on a body
US5538377A (en) * 1994-04-11 1996-07-23 Multifastener Corporation Enclosed nut retainer
US5713707A (en) * 1995-05-26 1998-02-03 Illinois Tool Works, Inc. U-nut and stand-off fastener
US5978232A (en) * 1996-04-22 1999-11-02 Samsung Electronics Co., Ltd. Computer body with a fixing device
US20020112870A1 (en) * 1999-09-17 2002-08-22 Toshiki Kobayashi Casing for electronic control devices
US20050029909A1 (en) * 2003-08-08 2005-02-10 Kenji Kitatani Mounting structure of resin part on chassis, and method thereof

Also Published As

Publication number Publication date
EP1637018B1 (fr) 2008-07-09
FR2856882B1 (fr) 2005-08-05
CN1813504A (zh) 2006-08-02
CN100518453C (zh) 2009-07-22
EP1637018A1 (fr) 2006-03-22
WO2004114735A1 (fr) 2004-12-29
FR2856882A1 (fr) 2004-12-31
JP2007507085A (ja) 2007-03-22
DE602004014929D1 (de) 2008-08-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SIEMENS VDO AUTOMOTIVE, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOUR, GERARD;REEL/FRAME:017376/0100

Effective date: 20051208

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION