WO1992002116A1 - Electric appliance, in particular switching and control appliance for motor vehicles - Google Patents

Electric appliance, in particular switching and control appliance for motor vehicles Download PDF

Info

Publication number
WO1992002116A1
WO1992002116A1 PCT/DE1991/000516 DE9100516W WO9202116A1 WO 1992002116 A1 WO1992002116 A1 WO 1992002116A1 DE 9100516 W DE9100516 W DE 9100516W WO 9202116 A1 WO9202116 A1 WO 9202116A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
power components
motor vehicles
electrical device
appliance
Prior art date
Application number
PCT/DE1991/000516
Other languages
German (de)
French (fr)
Inventor
Gert Jakob
Michael Magiera
Willy Bentz
Waldemar Ernst
Dieter Karr
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO1992002116A1 publication Critical patent/WO1992002116A1/en

Links

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
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0069—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having connector relating features for connecting the connector pins with the PCB or for mounting the connector body with the housing
    • 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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203—Cooling of mounted components
    • 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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0393—Flexible materials
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10166—Transistor
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10189—Non-printed connector
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/10553—Component over metal, i.e. metal plate in between bottom of component and surface of PCB

Definitions

  • the invention relates to an electrical device according to the preamble of the main claim.
  • strongly heating power components are accommodated on cooling elements which are attached to or on the printed circuit board or the housing.
  • These cooling elements consist of special cooling profiles, through which power components are arranged at a distance from the circuit board or projecting from it.
  • Cooling elements of this type have the disadvantage that they consist of profiles of complicated structure and the assembly can be automated only with difficulty.
  • this arrangement of the power components severely limits the existing circuit board area. Due to the design of the cooling elements and the attachment of the power components, such devices have to be dimensioned large and take up considerable installation space.
  • FIG. 1 a side view of a housing
  • Figure 2 is a plan view of an open housing with a section through the terminal block.
  • 10 denotes a rectangular plate made of a good heat-conducting material, for. B. aluminum.
  • a printed conductor foil 11 is laminated onto the underside thereof, the area of which is smaller than that of the plate 10, so that the edges of the plate remain free.
  • the conductor foil 11 carries an electronic circuit, of which only a few components are shown, for. B. several electronic components 13 in SMD design, which are glued and electrically conductively connected to the film 11 by reflow soldering.
  • Power components 14 are fastened in a suitable manner on the top of the plate 10 so that they are flat with their rear sides and are connected to the plate with good thermal conductivity.
  • the connection to the conductor foil 11 is established by connecting wires 15 which protrude through an elongated opening 16 in the plate 10 and the soldering openings provided therefor in the conductor foil 11.
  • a connector strip 17 is fastened to an end face of the plate 10 on its upper side. This has a ring-shaped opening 18 into which connection contacts 19 protrude, which in turn are tightly embedded in a web 20. From the connection contacts 19 lead wires 21 to the conductor foil 11, which protrude through an elongated opening 22 in the plate 10 and also penetrate the conductor foil through the solder openings provided.
  • the terminal block 17 is protected by a seal 23 against dirt and moisture so attached to the plate 10 that the opening 22 is closed at the top by the connector strip 17.
  • the electrically conductive connection between the conductor foil 11 and the connecting wires 21, 15 of the connector strip 17 and the power components 14 is created by crucible soldering.
  • the electronic components are protected by hood-like covers 24, 25.
  • the lid 24 arranged on the underside of the plate 10 extends to the edges thereof and lies with a rim 26. There it is attached firmly and tightly to the plate 10 in a suitable manner with the aid of an interposed seal 28.
  • the top of the plate 10 and the power components 14 arranged thereon are likewise protected by a hood-like cover 25 with an annular rim 27.
  • the cover 25 extends on three sides of the plate to the edges thereof.
  • the edge of the cover 25 facing the connector 17 ends in front of it and lies 1 ror of the strip 17 on the plate 10.
  • the cover 25 and the plate 10 are also firmly and tightly connected by suitable fastening means with the aid of an interposed seal 29.

Abstract

An electric appliance has a printed circuit board designed as a foil (11) arranged on a thermoconductive plate (10). The power components (14) to be cooled and the connecting block (17) are arranged on the side of the plate opposite to the printed circuit foil (11) and are connected to the printed circuit foil (11) through openings (16, 22) in the plate (10).

Description

Elektrisches Gerät, insbesondere Schalt- und Steuergerät für KraftfahrzeugeElectrical device, in particular switching and control device for motor vehicles
Stand der TechnikState of the art
Die Erfindung geht aus von einem elektrischen Gerät nach der Gattung des Hauptanspruchs. Bei derartigen bekannten Geräten sind stark erwärmende Leistungsbauelemente auf Kühlelementen untergebracht, die auf oder an der Leiterplatte oder dem Gehäuse befestigt sind. Diese Kühlelemente bestehen aus speziellen Kühlprofilen, durch die Leistungsbauelemente mit Abstand zur Leiterplatte bzw. von diesen abstehend angeordnet sind. Derartige Kühlelemente haben den Nach¬ teil, daß sie aus kompliziert aufgebauten Profilen bestehen und die Bestückung nur schwer automatisiert werden kann. Darüber hinaus schränkt diese Anordnung der Leistungsbauelemente die vorhandene Leiterplattenfläche stark ein. Durch die Gestaltung der Kühlelemente und die Anbringung der Leistungsbauelemente müssen solche Geräte groß dimensioniert werden und nehmen erheblichen Einbauraum in Anspruch.The invention relates to an electrical device according to the preamble of the main claim. In such known devices, strongly heating power components are accommodated on cooling elements which are attached to or on the printed circuit board or the housing. These cooling elements consist of special cooling profiles, through which power components are arranged at a distance from the circuit board or projecting from it. Cooling elements of this type have the disadvantage that they consist of profiles of complicated structure and the assembly can be automated only with difficulty. In addition, this arrangement of the power components severely limits the existing circuit board area. Due to the design of the cooling elements and the attachment of the power components, such devices have to be dimensioned large and take up considerable installation space.
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße elektrische Gerät mit den kennzeichenden Merk¬ malen des Hauptanspruchs hat demgegenüber den Vorteil, daß durch die The electrical device according to the invention with the characterizing features of the main claim has the advantage that the
Anordnung der Leistungsbauelemente eine besonders flache Bauform des elektrischen Gerätes möglich ist. Darüber hinaus werden durch die Anbringung der Leistungsbauelemente in der erfindungsgemäßen Art nur sehr geringe Tabuzonen auf der Leiterplatte beansprucht, die dadurch klein dimensioniert werden kann. Duch die Anbringung der Leistungs¬ bauelemente auf einer gut wärmeleitenden Platte ist darüber hinaus eine gute Wärmeableitung möglich, wodurch auch eine größere Zahl von Leistungsbauelementen aufgebracht werden kann. Zusätzlich ist durch die gute Wärmeabführung eine höhere Umgebungstemperatur möglich, wie sie z. B. im Motorräum eines Kraftfahrzeuges herrscht. Das Gehäuse kann weiterhin mit einer geringen Anzahl von Fertigungsschritten automatisch bestückt und verlötet werden.Arrangement of the power components a particularly flat design of the electrical device is possible. In addition, due to the attachment of the power components in the manner according to the invention, only very small taboo zones on the printed circuit board are claimed, which can thereby be made small. By attaching the power components on a good heat-conducting plate, good heat dissipation is also possible, as a result of which a larger number of power components can also be applied. In addition, due to the good heat dissipation, a higher ambient temperature is possible, as z. B. in the engine compartment of a motor vehicle. The housing can also be automatically equipped and soldered with a small number of manufacturing steps.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und Zeichnung wiedergegeben. Letztere zeigt in Figur 1 eine Seitenansicht eines Gehäuses und in Figur 2 eine Draufsicht auf ein offenes Gehäuse mit Schnitt durch die Anschlußleiste.An embodiment of the invention is shown in the following description and drawing. The latter shows in Figure 1 a side view of a housing and in Figure 2 is a plan view of an open housing with a section through the terminal block.
Beschreibung der ErfindungDescription of the invention
In Figur 1 ist mit 10 eine rechteckige Platte aus gut wärmeleitendem Material bezeichnet, z. B. Aluminium. Auf deren Unterseite ist eine bedruckte Leiterfolie 11 auflaminiert, deren Fläche kleiner als die der Platte 10 ist, so daß die Ränder der Platte frei bleiben. Die Leiterfolie 11 trägt eine elektronische Schaltung, von der nur einige Bauteile dargestellt sind, z. B. mehrere elektronische Bau¬ teile 13 in SMD-Bauweise, die aufgeklebt und durch Reflow-Löten elektrisch leitend mit der Folie 11 verbunden sind.In Figure 1, 10 denotes a rectangular plate made of a good heat-conducting material, for. B. aluminum. A printed conductor foil 11 is laminated onto the underside thereof, the area of which is smaller than that of the plate 10, so that the edges of the plate remain free. The conductor foil 11 carries an electronic circuit, of which only a few components are shown, for. B. several electronic components 13 in SMD design, which are glued and electrically conductively connected to the film 11 by reflow soldering.
Auf der Oberseite der Plätte 10 sind Leistungsbauelemente 14 auf geeignete Weise so befestigt, daß sie mit ihren Rückseiten flächig und gut wärmeleitend mit der Platte verbunden sind. Die Verbindung zur Leiterfolie 11 entsteht durch Anschlußdrähte 15, die durch eine längliche Öffnung 16 in der Platte 10 und dafür vorgesehene Löt¬ öffnungen in der Leiterfolie 11 ragen.Power components 14 are fastened in a suitable manner on the top of the plate 10 so that they are flat with their rear sides and are connected to the plate with good thermal conductivity. The connection to the conductor foil 11 is established by connecting wires 15 which protrude through an elongated opening 16 in the plate 10 and the soldering openings provided therefor in the conductor foil 11.
An einer Stirnseite der Platte 10 ist auf ihrer Oberseite eine Steckerleiste 17 befestigt. Diese weist eine kranzförmige Öffnung 18 auf, in die Anschlußkontakte 19 ragen, die wiederum in einem Steg 20 dicht eingebettet sind. Von den Anschlußkontakten 19 führen An¬ schlußdrähte 21 zur Leiterfolie 11, die durch eine längliche Öffnung 22 in der Platte 10 ragen und die Leiterfolie ebenfalls durch vor¬ gesehene Lötöffnungen durchdringen. Die Anschlußleiste 17 ist mit Hilfe einer Dichtung 23 gegen Schmutz und Feuchtigkeit geschützt so auf der Platte 10 befestigt, daß die Öffnung 22 nach oben durch die Steckerleiste 17 verschlossen ist. Die elektrisch leitende Ver¬ bindung zwischen Leiterfolie 11 und den Anschlußdrähten 21, 15 der Steckerleiste 17 und der Leistungsbauelemente 14 ist durch Tiegel-Löten erstellt.A connector strip 17 is fastened to an end face of the plate 10 on its upper side. This has a ring-shaped opening 18 into which connection contacts 19 protrude, which in turn are tightly embedded in a web 20. From the connection contacts 19 lead wires 21 to the conductor foil 11, which protrude through an elongated opening 22 in the plate 10 and also penetrate the conductor foil through the solder openings provided. The terminal block 17 is protected by a seal 23 against dirt and moisture so attached to the plate 10 that the opening 22 is closed at the top by the connector strip 17. The electrically conductive connection between the conductor foil 11 and the connecting wires 21, 15 of the connector strip 17 and the power components 14 is created by crucible soldering.
Die elektronischen Bauelemente sind durch haubenartige Deckel 24, 25 geschützt. Der auf der Unterseite der Platte 10 angeordnete Deckel 24 reicht bis an deren Ränder und liegt mit einem kranzförmigen Rand 26 auf. Dort ist er auf geeignete Weise unter Zuhilfenahme einer zwischengelegten Dichtung 28 fest und dicht an der Platte 10 angebracht.The electronic components are protected by hood-like covers 24, 25. The lid 24 arranged on the underside of the plate 10 extends to the edges thereof and lies with a rim 26. There it is attached firmly and tightly to the plate 10 in a suitable manner with the aid of an interposed seal 28.
Die Oberseite der Platte 10 und die darauf angeordneten Leistungs¬ bauelemente 14 sind ebenfalls durch einen haubenartigen Deckel 25 mit kranzförmigem Rand 27 geschützt. Der Deckel 25 reicht an drei Seiten der Platte bis an deren Ränder. Der der Stecker..---iste 17 zugewandte Rand des Deckels 25 endet vor dieser und lieg1 ror der Leiste 17 auf der Platte 10 auf. Der Deckel 25 und die Pla te 10 sind ebenfalls durch geeignete Befestigungsmittel unter Zuhilfenahme einer zwischengelegten Dichtung 29 fest und dicht verbunden. The top of the plate 10 and the power components 14 arranged thereon are likewise protected by a hood-like cover 25 with an annular rim 27. The cover 25 extends on three sides of the plate to the edges thereof. The edge of the cover 25 facing the connector 17 ends in front of it and lies 1 ror of the strip 17 on the plate 10. The cover 25 and the plate 10 are also firmly and tightly connected by suitable fastening means with the aid of an interposed seal 29.

Claims

Ansprüche Expectations
1. Elektrisches Gerät, insbesondere Schalt- und Steuergerät für Kraftfahrzeuge, mit einer die elektronische Schaltung tragenden Leiterplatte (11), einer mit Steckern (19) versehenen Anschlußleiste (17) und mindestens einem zu kühlenden Leistungsbauelement (14), dadurch gekennzeichnet, daß die Leiterplatte (11) als Leiterfolie ausgebildet ist, die auf eine Seite einer gut wärmeleitenden Platte (10) aufgebracht ist, daß Leistungsbauelemente (14) und Anschlu߬ leiste (17) auf der gegenüberliegenden Seite der Platte (10) ange¬ ordnet sind und daß ihre durch Öffnungen (16, 22) in der Platte (10) dringenden Anschlußdrähte (15, 21) mit der Leiterfolie (11) in Ver¬ bindung stehen.1. Electrical device, in particular switching and control device for motor vehicles, with a circuit board carrying the electronic circuit (11), a connector (19) provided with a connector strip (17) and at least one power component to be cooled (14), characterized in that the Printed circuit board (11) is designed as a conductor film which is applied to one side of a heat-conducting plate (10), that power components (14) and connecting strip (17) are arranged on the opposite side of the plate (10) and that their connecting wires (15, 21) penetrating through openings (16, 22) in the plate (10) are connected to the conductor foil (11).
2. Elektrisches Gerät nach Anspruch 1, dadurch gekennzeichnet, daß die Leistungsbauelemente (14) flach auf der Platte (10) angeordnet sind.2. Electrical device according to claim 1, characterized in that the power components (14) are arranged flat on the plate (10).
3. Elektrisches Gerät nach Anspruch 1 und/oder 2, dadurch gekenn¬ zeichnet, daß die elektronischen Bauteile durch haubenartige Deckel (24, 25) geschützt sind, zwischen denen sich die Platte (10) befindet. 3. Electrical device according to claim 1 and / or 2, characterized gekenn¬ characterized in that the electronic components are protected by hood-like cover (24, 25), between which the plate (10) is located.
PCT/DE1991/000516 1990-07-21 1991-06-26 Electric appliance, in particular switching and control appliance for motor vehicles WO1992002116A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4023319.7 1990-07-21
DE19904023319 DE4023319C1 (en) 1990-07-21 1990-07-21

Publications (1)

Publication Number Publication Date
WO1992002116A1 true WO1992002116A1 (en) 1992-02-06

Family

ID=6410814

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000516 WO1992002116A1 (en) 1990-07-21 1991-06-26 Electric appliance, in particular switching and control appliance for motor vehicles

Country Status (2)

Country Link
DE (1) DE4023319C1 (en)
WO (1) WO1992002116A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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DE4218112B4 (en) * 1992-01-21 2012-03-01 Robert Bosch Gmbh Electrical apparatus, in particular switching and control apparatus for motor vehicles
DE4243180A1 (en) * 1992-02-21 1993-08-26 Bosch Gmbh Robert
DE4228818C2 (en) * 1992-08-29 2003-04-03 Bosch Gmbh Robert Electrical device, in particular switching and control device for motor vehicles, and method of manufacture
DE4326506A1 (en) * 1993-08-06 1995-02-09 Bosch Gmbh Robert Electrical appliance, in particular a switching device or controller for motor vehicles
DE19541925B4 (en) * 1995-11-10 2007-10-25 Robert Bosch Gmbh Arrangement for cooling a circuit arrangement
DE29603390U1 (en) * 1996-02-24 1997-06-26 Bosch Gmbh Robert Electronic control unit
JP3202163B2 (en) * 1996-03-05 2001-08-27 ヒロセ電機株式会社 PC card and frame kit therefor
DE19612599A1 (en) 1996-03-29 1997-10-02 Bosch Gmbh Robert Arrangement for fastening a wiring harness to a carrier plate
DE19706790C2 (en) * 1997-02-20 2000-08-31 Siemens Ag Control unit for installation in a motor vehicle
DE19713867A1 (en) * 1997-04-04 1998-10-08 Bosch Gmbh Robert Connector strip for electronic devices
DE19955603C1 (en) 1999-11-18 2001-02-15 Siemens Ag Integrated control device for motor vehicle especially for automatic transmission
DE102006034923A1 (en) * 2006-07-28 2008-01-31 Jungheinrich Ag Housing for a controller
DE102006049593A1 (en) * 2006-10-20 2008-04-24 Conti Temic Microelectronic Gmbh Compact control device for a motor vehicle
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DE102007029913A1 (en) 2007-06-28 2009-01-02 Robert Bosch Gmbh Electric control unit
DE102010030891A1 (en) * 2010-07-02 2012-01-05 Zf Friedrichshafen Ag Control unit assembly
DE102011007300A1 (en) * 2011-04-13 2012-10-18 Zf Friedrichshafen Ag Transmission control device for controlling gear box of vehicle e.g. passenger car, has gear element acted as cover part for printed circuit board, where portion of gear element is bordered on major surface of printed circuit board
DE102011089081A1 (en) 2011-12-19 2013-06-20 Robert Bosch Gmbh Electrical connector and a related arrangement with a housing
DE102012204004A1 (en) 2012-03-14 2013-09-19 Zf Friedrichshafen Ag Covering device for a contacting section of a printed circuit board, control system for a mechatronic module and method for assembling a control system
DE102020212811B4 (en) 2020-10-09 2022-10-13 Vitesco Technologies Germany Gmbh Compact control module for a vehicle with at least one electric motor and a transmission

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