DE102009029317A1 - Device, particularly controlling device for use in motor vehicle, has electrical conducting housing, printed circuit board and electrical conducting connecting unit - Google Patents
Device, particularly controlling device for use in motor vehicle, has electrical conducting housing, printed circuit board and electrical conducting connecting unit Download PDFInfo
- Publication number
- DE102009029317A1 DE102009029317A1 DE102009029317A DE102009029317A DE102009029317A1 DE 102009029317 A1 DE102009029317 A1 DE 102009029317A1 DE 102009029317 A DE102009029317 A DE 102009029317A DE 102009029317 A DE102009029317 A DE 102009029317A DE 102009029317 A1 DE102009029317 A1 DE 102009029317A1
- Authority
- DE
- Germany
- Prior art keywords
- circuit board
- printed circuit
- housing
- spacer
- electrical conducting
- 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.)
- Ceased
Links
Images
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
- H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
- H05K5/006—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for holding the PCB within 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
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
- H05K1/0206—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate by printed thermal vias
-
- 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
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0215—Grounding of printed circuits by connection to external grounding means
-
- 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
- H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
- H05K2201/2036—Permanent spacer or stand-off in a printed circuit or printed circuit assembly
Abstract
Description
Die Erfindung betrifft eine Einrichtung, die ein zumindest bereichsweise elektrisch leitendes Gehäuse und eine Leiterplatte umfasst.The invention relates to a device which comprises an at least partially electrically conductive housing and a printed circuit board.
Stand der TechnikState of the art
Die
Nachteilig an einer derart bekannten Einrichtung ist, dass von den auf der Leiterplatte
Offenbarung der ErfindungDisclosure of the invention
Gegenstand der Erfindung ist eine Einrichtung, die ein zumindest bereichsweise elektrisch leitendes Gehäuse, eine Leiterplatte und mindestens ein elektrisch leitendes Verbindungsmittel umfasst, wobei die Leiterplatte eine Masselage aufweist, das Gehäuse mit der Leiterplatte mittels des elektrisch leitenden Verbindungsmittels mit der Masselage elektrisch verbunden ist, und das Verbindungsmittel zur Kontaktierung der Masselage durch die Leiterplatte zumindest teilweise hindurchgeht.The invention relates to a device which comprises an at least partially electrically conductive housing, a printed circuit board and at least one electrically conductive connecting means, wherein the circuit board has a ground layer, the housing is electrically connected to the circuit board by means of the electrically conductive connection means with the ground layer, and the connecting means for contacting the ground layer passes through the printed circuit board at least partially.
Die elektrisch leitenden Verbindungsmittel ermöglichen die Ausbildung von vorteilhaft kurzen Stromschleifen, um im Gehäuse erzeugte, insbesondere parasitäre Ströme aus dem Gehäuse zur Masse zu führen. Durch diese Maßnahme kann die Abstrahlung reduziert und auf diese Weise die EMV der Einrichtung verbessert werden. Das verbesserte Abstrahlverhalten kann dafür genutzt werden, alternative elektronische Bauteile zu verwenden, beispielsweise einen DC/DC-FET durch einen schnellschaltenden, verlustleistungsarmen FET in kleiner Bauform zu ersetzen. Des Weiteren können die elektrisch leitenden Verbindungsmittel als Abschirmung eingesetzt werden, um kapazitive oder induktive Überkopplungen zwischen benachbarten elektrischen Elementen zu vermeiden.The electrically conductive connection means allow the formation of advantageously short current loops in order to lead, in particular parasitic currents generated in the housing from the housing to the ground. By this measure, the radiation can be reduced and in this way the EMC of the device can be improved. The improved radiation behavior can be used to use alternative electronic components, for example to replace a DC / DC-FET with a fast-switching, low-loss, low-power FET. Furthermore, the electrically conductive connection means can be used as a shield to avoid capacitive or inductive cross-coupling between adjacent electrical elements.
Besonders bevorzugt ist, dass das elektrische Verbindungsmittel einen elektrisch leitenden Abstandshalter umfasst. Der Abstandshalter hat den Zweck, die Leiterplatte in Abstand von dem Gehäuse zu halten. Auf diese Weise übernimmt der Abstandshalter eine Doppelfunktion. Liegt die Masselage im Innern der Leiterplatte, was erfindungsgemäß bevorzugt ist, so kann der Abstandshalter mittels einer elektrisch leitenden Durchkontaktierung mit der Masselage verbunden sein.It is particularly preferred that the electrical connection means comprises an electrically conductive spacer. The spacer has the purpose of keeping the printed circuit board at a distance from the housing. In this way, the spacer takes on a dual function. If the grounding layer lies inside the printed circuit board, which is preferred according to the invention, then the spacer can be connected to the grounding layer by means of an electrically conductive through-connection.
Alternativ oder ergänzend können die Abstandshalter den Zweck haben, Wärme aus der Leiterplatte in das Gehäuse abzuleiten.Alternatively or additionally, the spacers may have the purpose of dissipating heat from the circuit board into the housing.
In einer alternativen Ausführungsform umfasst das Verbindungsmittel eine elektrische Kontaktierung, die aus einem Loch in der Leiterplatte von der Masselage auf den Rand des Loches herausgeführt ist. Diese elektrische Kontaktierung liegt vorzugsweise auf einer im Bereich der Kontaktierung vorgesehenen Erhebung des Gehäuses auf.In an alternative embodiment, the connecting means comprises an electrical contact, which is led out of a hole in the circuit board from the grounding position to the edge of the hole. This electrical contact is preferably on a provided in the region of the contacting survey of the housing.
Die abhängigen Ansprüche beschreiben vorteilhafte Ausführungsformen der Erfindung.The dependent claims describe advantageous embodiments of the invention.
Die Erfindung wird im Folgenden anhand von Ausführungsformen, die durch Zeichnungen dargestellt sind, näher erläutert.The invention will be explained in more detail below with reference to embodiments which are illustrated by drawings.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Es zeigen:Show it:
Ausführungsformen der Erfindung Embodiments of the invention
Gleiche oder einander entsprechende Bauteile sind in den Figuren mit denselben Bezugszeichen versehen.The same or corresponding components are provided in the figures with the same reference numerals.
Die in
Die
Die Einrichtung umfasst ein zumindest bereichsweise elektrisch leitendes Gehäuse
Auf der Oberseite der Leiterplatte
Des Weiteren umfasst die Einrichtung mehrere elektronische Bauteile, hier exemplarisch dargestellt durch einen DC/DC-FET
Die Einrichtung umfasst mehrere Verbindungsmittel
Des Weiteren umfasst das jeweilige Verbindungsmittel
Die Leiterbahnen
Um möglichst kurze Stromschleifen zu erzielen, sind die Verbindungsmittel
Um derartige kurze Stromschleifen zu gewährleisten, ist es bevorzugt, eine Vielzahl von solchen Verbindungsmitteln
In einer alternativen Ausbildung eines Verbindungsmittels
Der Dämpfungswiderstand
Die
Entsprechend der Einrichtung gemäß der ersten Ausführungsform umfasst die Einrichtung gemäß der zweiten Ausführungsform ein elektrisch leitendes Gehäuse
In Abweichung von der Einrichtung gemäß der ersten Ausführungsform umfasst die Einrichtung ein Verbindungsmittel
Insbesondere kann das Verbindungsmittel
Die beschriebenen Einrichtungen sind beispielsweise als Steuergeräte mit Metallgehäuse, insbesondere für Kraftfahrzeug-Anwendungen einsetzbar.The devices described can be used for example as control devices with metal housing, in particular for motor vehicle applications.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009029317A DE102009029317A1 (en) | 2009-09-09 | 2009-09-09 | Device, particularly controlling device for use in motor vehicle, has electrical conducting housing, printed circuit board and electrical conducting connecting unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009029317A DE102009029317A1 (en) | 2009-09-09 | 2009-09-09 | Device, particularly controlling device for use in motor vehicle, has electrical conducting housing, printed circuit board and electrical conducting connecting unit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009029317A1 true DE102009029317A1 (en) | 2011-03-17 |
Family
ID=43571022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009029317A Ceased DE102009029317A1 (en) | 2009-09-09 | 2009-09-09 | Device, particularly controlling device for use in motor vehicle, has electrical conducting housing, printed circuit board and electrical conducting connecting unit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009029317A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012014519B3 (en) * | 2012-07-23 | 2013-12-24 | Phoenix Contact Gmbh & Co. Kg | Dispatcher box e.g. sensor actuator box has annular connecting element which is provided to electrically-conductive contact foot portion of sleeve with metallic surface on underside of circuit board |
DE102014201200A1 (en) | 2013-12-30 | 2015-07-02 | Robert Bosch Gmbh | circuit board |
-
2009
- 2009-09-09 DE DE102009029317A patent/DE102009029317A1/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012014519B3 (en) * | 2012-07-23 | 2013-12-24 | Phoenix Contact Gmbh & Co. Kg | Dispatcher box e.g. sensor actuator box has annular connecting element which is provided to electrically-conductive contact foot portion of sleeve with metallic surface on underside of circuit board |
DE102014201200A1 (en) | 2013-12-30 | 2015-07-02 | Robert Bosch Gmbh | circuit board |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
R163 | Identified publications notified |
Effective date: 20130502 |
|
R012 | Request for examination validly filed | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |