EP0343864B1 - Leiterplattenverbindung - Google Patents

Leiterplattenverbindung Download PDF

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Publication number
EP0343864B1
EP0343864B1 EP89305071A EP89305071A EP0343864B1 EP 0343864 B1 EP0343864 B1 EP 0343864B1 EP 89305071 A EP89305071 A EP 89305071A EP 89305071 A EP89305071 A EP 89305071A EP 0343864 B1 EP0343864 B1 EP 0343864B1
Authority
EP
European Patent Office
Prior art keywords
board
assembly
child
cover
modules
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.)
Expired - Lifetime
Application number
EP89305071A
Other languages
English (en)
French (fr)
Other versions
EP0343864A2 (de
EP0343864A3 (en
Inventor
Philip V. Little
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.)
ABB Installation Products Inc
Original Assignee
Thomas and Betts Corp
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 Thomas and Betts Corp filed Critical Thomas and Betts Corp
Publication of EP0343864A2 publication Critical patent/EP0343864A2/de
Publication of EP0343864A3 publication Critical patent/EP0343864A3/en
Application granted granted Critical
Publication of EP0343864B1 publication Critical patent/EP0343864B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures

Definitions

  • the invention relates to connectors for connecting together printed circuit board in a printed circuit board assembly.
  • This daughter and child board arrangement requires convenient and sophisticated physical and electrical connections to be established between the daughter board and child boards mounted on it, as well as a facility for connections between child boards. Electrical connections between both sides of a child board and a daughter board are advantageous, and a high connection density is also important.
  • EP-A-0147092 discloses a multiple contact connector having a low profile with a bottom member for attachment to a large circuit board, the bottom member having a plurality of spaced parallel spring cantilever contact members.
  • a top member is attached to an edge of another circuit board, for example a smaller board, the top member having a plurality of spaced parallel contact members having top and bottom legs, the top legs of the contact members making contact with the smaller board circuit pattern and the bottom legs contacting he cantilever contact members of the bottom member.
  • a spring member extends up from the bottom member and snaps over the top member.
  • Another existing proposal provides for direct contact between contacts arranged around the periphery of one side only of a child board and contact receptors arranged on a daughter board, the child board being held in place to make electrical contact by a frame extending around the periphery of the child board and attached to the daughter board.
  • This arrangement suffers from disadvantages that electrical contacts are on one side only of the child board, their physical size allows 132 contacts only per child board, and the use of a frame for securement means that the circuitry is totally enclosed between the daughter board, child board and the frame which gives rise to difficulties in heat dissipation.
  • a printed circuit board assembly comprising a daughter board, at least one child board, at least a pair of connector modules located parallel one to the other on either side of the or each child board, and securement means securing each module and thereby the associated child board to the daughter board, each module comprising a body having ends joining two parallel side walls, the side walls lying adjacent an edge of but perpendicular to the associated child board each side wall having a multiplicity of parallel slots slidingly engaged by body contact elements extending between the side walls, the body being open such that the body contact elements make contact with both the daughter board and the associated child board or child boards, and a cover lying against the side of the child board remote from the daughter board, the cover of at least one module being hollow with a multiplicity of parallel slots in opposing side walls, cover contact elements slidingly engaging said cover slots and extending between the side walls for making electrical contact between an upper surface of the child board and one of an adjacent child board and the daughter board.
  • the assembly preferably includes retaining means for retaining the contact elements in position while assembly of the module takes place, in use.
  • the retaining means may compromise a bar of insulating material.
  • the assembly preferably further comprises means for connecting together adjacent modules.
  • the connecting means preferably comprise mutually engageable profiles on the modules, such that adjacent modules can be connected together mutually perpendicularly.
  • the mutually engageable profiles may comprise male and female dovetail profiles.
  • Adapter means are preferably provided to connect together adjacent modules rectilinearly. End profiles of modules and adapter means are preferably shaped to define a hole through which the securement means passes.
  • the cover alternatively, may have an engagement profile such that adjacent covers meet end to end and coaxially.
  • the cover may take one or two preferred forms, a first for locating cover connectors for connecting electrically adjacent child boards, and a second, where one side wall of the cover extends to the daughter board, for locating cover connectors for connecting contacts on the upper side of the child board to the daughter board.
  • the or each child board may be associated with four modules, heat dissipation in such circumstances not being a problem.
  • the contact elements are preferably planar.
  • Figure 1 is a module layout on a standard double Eurocard 30 on which are mounted eight 50mm2 child boards 31.
  • the child boards 31 are connected electrically and physically to the Eurocard daughter board by modular connector apparatus in the form of modules 32.
  • all the modules 32 lying at the periphery of the child boards 31 are the same, there being twenty-two such modules 32 in all in Figure 1.
  • end portions of the modules 32 have mutually engaging dovetail profiles and attachment of the modules to the Eurocard 30 is by way of bolts passing through the Eurocard 30 and through holes 33 defined by end portions of the modules 32.
  • infill portions are provided, these being of two types, a centre infill piece 34 or a corner infill piece 35. This arrangement will be described in more detail with reference to the further drawings.
  • the child boards 31 are fully enclosed by the modules 32 and in this arrangement, heat output from the child boards must be sufficiently low for heat dissipation not to cause a problem.
  • Figures 2, 3 and 4 show a modified arrangement in more detail, Figures 3 and 4 being sectional views along the lines A-A and B-B respectively in Figure 2.
  • a daughter board 12 carries in this arrangement four child boards 11, all boards being provided with electrical contact areas, those of the child boards 11 being arranged in the region of the periphery of the child boards.
  • the child boards are held in place physically and electrical connections between adjacent child boards or between the child boards and the daughter board 12 by means of modules equivalent to the modules 32 of Figure 1.
  • two modules only are associated with each child board 11, thereby allowing full air passage on both sides of each child board 11 to allow good heat dissipation (shown clearly in Figure 4).
  • Each module has a body portion 1 and a cover portion 4 5 or 8; as can be seen in Figures 2 and 4, the shapes of the cover portions 4, 5 and 8 differ to allow therewithin different contact elements, or omission of a contact element.
  • Each body portion 1 has a pair of parallel, spaced apart side walls 21, 22 joined by end portions which carry dovetail profiles as shown in Figure 2. Inside surfaces of the side walls 21 and 22 are provided with many parallel, closely spaced slots into opposing pairs of which bridging contact elements 2 are slidingly engaged. In this particular embodiment, each side wall has seventy-two slots to allow seventy-two contacts on a 0.5mm pitch to be located in each body portion 1. As can be seen in Figure 4, the contact elements 2 are able to make contact between the undersides of adjacent child boards 11 and the daughter board 12. Illustrated in Figure 4 is a contact retainer 3 for the body portion contact 2. The retainers 3 ensure that while the modules are being assembled, the body portion contacts 2 remain in place. It can be seen in Figure 4 that the slots engaged by the body portion contacts 2 do not extend fully across the side walls 21 and 22 so that a lower stop is provided for the body portion contact elements 2.
  • Edge cover 4 includes no contact element but bridging cover 5 and edge contact cover 8 include bridging contact elements 6 and top edge contact elements 9 respectively.
  • the bridging cover 5 includes parallel slots in its side walls, as with the body portion 1 the slots being at 0.5mm pitch and being in number seventy-two in each side wall therefore providing for location of seventy-two bridging contact elements 6 in each bridging cover 5.
  • edge contact cover 8 has seventy-two slots at 0.5mm pitch in the side walls to provide for location of seventy-two top edge contact elements 9.
  • contact retainers 7 and 10 are provided in each bridge cover and edge contact cover respectively.
  • the body portions 1 have end portions with male and female dovetail portions corresponding to the cover portions 5, thereby giving a facility for a mutual engagement at right angles or with body centre pieces 16, in a straight line.
  • body corner pieces 15 are provided at the ends of rows. With the body centre pieces 16 and body corner pieces 15, a hole is defined with the body portion 1 to which a bolt 18 may pass (see Figure 3).
  • edge contact covers 8 Slightly different securement arrangements are provided for the edge contact covers 8 in that these pieces engage directly in line as can be seen in Figure 2. Thus where two edge contact covers 8 are joined by mutually engageable dovetail profiles, no filler piece is required. To complete the end of a run of edge contact covers 8, edge contact cover end pieces 17 are provided. In these arrangements holes are defined, each engaged by one of the bolts 18.
  • This arrangement provides the flexibility available from a modular system and, as with Figure 1 can be used to surround the child board or as in Figure 2 can be used on two edges only of a child board to provide access to cooling air.
  • Contact density using stamped, planar contact elements is greater than has hitherto been achieved; with the Figure 2 arrangement, 288 contacts per child board can be made and with the Figure 1 arrangement, 576 contacts with each child board can be made. Assembly of the child and daughter board assemblies are simple.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (11)

  1. Eine Leiterplattenanordnung, bestehend aus einer Tochterplatte (12; 30), mindestens einer Kindplatte (11; 31), mindestens einem Paar von Verbindermoduln (32), die parallel zueinander auf beiden Seiten der oder jeder Kindplatte angeordnet sind, und jeden Modul (32) und damit die zugehörige Kindplatte (11; 31) an der Tochterplatte (12; 30) befestigende Befestigungsmittel (18), wobei jeder Modul (32) einen Körper (1) mit zwei parallele Seitenwände verbindenden Enden aufweist, die Seitenwände an einer Kante der zugehörigen Kindplatte (11; 31), aber senkrecht zu dieser liegen, jede Seitenwand eine Vielfalt von parallelen Schlitzen aufweist, die von zwischen den Seitenwänden verlaufenden Körperkontaktelementen (2) gleitend erfaßt werden, der Körper offen ist, so daß die Körperkontaktelemente (2) sowohl mit der Tochterplatte (12; 30) als auch der zugehörigen Kindplatte oder den zugehörigen Kindplatten (11; 31) Kontakt machen, und ein Deckel (4; 5; 8) an der von der Tochterplatte (12; 30) abgelegenen Seite der Kindplatte (11; 31) anliegt, der Deckel mindestens eines Moduls hohl ist mit einer Vielfalt von parallelen Schlitzen in gegenüberliegenden Seitenwänden, Deckelkontaktelemente (6; 9) die Deckelschlitze gleitend erfassen und zwischen den Seitenwänden zum Ausbilden eines elektrischen Kontaktes zwischen einer Oberseite der Kindplatte (11; 31) und einer benachbarten Kindplatte (11; 31) und der Tochterplatte (12; 30) verlaufen.
  2. Eine Anordnung wie in Anspruch 1 beansprucht mit einem Haltemittel (3; 7; 10) zum Halten der Kontaktelemente (2; 6; 9) in ihrer Lage im Betrieb beim Zusammenbau des Moduls.
  3. Eine Anordnung wie in Anspruch 2 beansprucht, wobei das Haltemittel (3; 7; 10) eine Stange (3; 7; 10) aus isolierendem Material ist.
  4. Eine Anordnung wie in irgendeinem der Ansprüche 1 bis 3 beansprucht mit Mitteln zum Verbinden benachbarter Moduln.
  5. Eine Anordnung wie in Anspruch 4 beansprucht, wobei die Verbindungsmittel auf den Moduln in gegenseitige Anlage bringbare Profile sind, so daß benachbarte Moduln senkrecht zueinander miteinander verbunden werden können.
  6. Eine Anordnung wie in Anspruch 5 beansprucht, wobei die miteinander in Eingriff bringbaren Profile männliche und weibliche Schwalbenschwanzprofile sind.
  7. Eine Anordnung wie in irgendeinem der Ansprüche 4 bis 6 beansprucht mit einem Adaptermittel (15, 16) zum geradlinigen Verbinden benachbarter Moduln.
  8. Eine Anordnung wie in Anspruch 7 beansprucht, wobei Endprofile der Moduln (32) und die Adaptermittel (15, 16) unter Bildung eines Loches, durch das das Befestigungsmittel (18) durchtritt, geformt sind.
  9. Eine Anordnung wie in Anspruch 4 beansprucht, wobei der Deckel (8) mindestens eines Moduls ein Anlageprofil derart aufweist, daß benachbarte Deckel (8) Ende an Ende und koaxial liegen.
  10. Eine Anordnung wie in irgendeinem der Ansprüche 1 bis 9 beansprucht, wobei ein oder mehrere Deckel (8) eine zu der Tochterplatte (12; 30) verlaufende Seitenwand zum Anordnen von Deckelverbindern (9) zum Anschließen von Kontakten auf der Oberseite der Kindplatte (11; 31) an die Tochterplatte (12; 30) aufweisen.
  11. Eine Anordnung wie in irgendeinem der Ansprüche 1 bis 10 beansprucht, wobei Luft zwischen der Kindplatte (11; 31) und der Tochterplatte (12; 30) frei durchströmen kann.
EP89305071A 1988-05-25 1989-05-19 Leiterplattenverbindung Expired - Lifetime EP0343864B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8812330 1988-05-25
GB888812330A GB8812330D0 (en) 1988-05-25 1988-05-25 Connector for printed circuit boards

Publications (3)

Publication Number Publication Date
EP0343864A2 EP0343864A2 (de) 1989-11-29
EP0343864A3 EP0343864A3 (en) 1990-12-12
EP0343864B1 true EP0343864B1 (de) 1994-12-07

Family

ID=10637488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89305071A Expired - Lifetime EP0343864B1 (de) 1988-05-25 1989-05-19 Leiterplattenverbindung

Country Status (6)

Country Link
EP (1) EP0343864B1 (de)
AU (1) AU605040B2 (de)
CA (1) CA1304462C (de)
DE (1) DE68919750T2 (de)
ES (1) ES2067540T3 (de)
GB (1) GB8812330D0 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099392A (en) * 1990-04-02 1992-03-24 Hewlett-Packard Company Tape-automated bonding frame adapter system
US5648891A (en) * 1995-08-23 1997-07-15 Rockwell International Corp. Circuit board assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482937A (en) * 1982-09-30 1984-11-13 Control Data Corporation Board to board interconnect structure
US4530554A (en) * 1983-12-27 1985-07-23 Northern Telecom Limited High density low profile multiple contact connector
US4678252A (en) * 1986-05-27 1987-07-07 Rockwell International Corporation Electrical connector for circuit boards
US4738625A (en) * 1986-09-29 1988-04-19 Bell Telephone Laboratories, Inc. Electrical connectors for circuit panels
EP0282867A1 (de) * 1987-03-20 1988-09-21 Siemens Aktiengesellschaft Elektronische Baugruppe
AU2073088A (en) * 1987-07-01 1989-01-30 Western Digital Corporation Plated plastic castellated interconnect for electrical components

Also Published As

Publication number Publication date
DE68919750D1 (de) 1995-01-19
EP0343864A2 (de) 1989-11-29
DE68919750T2 (de) 1995-04-20
EP0343864A3 (en) 1990-12-12
CA1304462C (en) 1992-06-30
AU3488489A (en) 1990-01-25
ES2067540T3 (es) 1995-04-01
GB8812330D0 (en) 1988-06-29
AU605040B2 (en) 1991-01-03

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