WO2005078867A1 - Power distributor for a motor vehicle - Google Patents

Power distributor for a motor vehicle Download PDF

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Publication number
WO2005078867A1
WO2005078867A1 PCT/EP2005/001287 EP2005001287W WO2005078867A1 WO 2005078867 A1 WO2005078867 A1 WO 2005078867A1 EP 2005001287 W EP2005001287 W EP 2005001287W WO 2005078867 A1 WO2005078867 A1 WO 2005078867A1
Authority
WO
WIPO (PCT)
Prior art keywords
contacts
power distributor
lead frame
motor vehicle
distributor according
Prior art date
Application number
PCT/EP2005/001287
Other languages
German (de)
French (fr)
Inventor
Uwe Ossenberg
Original Assignee
Leopold Kostal Gmbh & Co. Kg
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 Leopold Kostal Gmbh & Co. Kg filed Critical Leopold Kostal Gmbh & Co. Kg
Publication of WO2005078867A1 publication Critical patent/WO2005078867A1/en

Links

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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/226—Bases, e.g. strip, block, panel comprising a plurality of conductive flat strips providing connection between wires or 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/325—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor
    • 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
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
    • 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
    • H05K2201/1059—Connections made by press-fit insertion
    • 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
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10742—Details of leads
    • H05K2201/1075—Shape details
    • H05K2201/10856—Divided leads, e.g. by slot in length direction of lead, or by branching of the lead
    • 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
    • H05K3/202—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern using self-supporting metal foil pattern
    • 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/306—Lead-in-hole components, e.g. affixing or retention before soldering, spacing means
    • H05K3/308—Adaptations of leads

Definitions

  • the present invention relates to a power distributor for a motor vehicle with at least one lead frame into which contacts are pressed.
  • Power distributors of this type are used in motor vehicles for distributing high currents, in particular in what are known as central electrical systems.
  • Known power distributors are either designed using pure lead frame technology or in printed circuit board technology with press-in contacts.
  • a pure lead frame technology results in high tool costs due to the required work steps (punching, bending, separating).
  • Other disadvantages are the poor possibilities for changes, the relatively large installation space required and the relatively high weight.
  • PCB technology With PCB technology, the relatively high unit price of the PCB and the limited current carrying capacity are disturbing.
  • the contacts have at least one and preferably a plurality of resilient press-in zones which are connected to the lead frame without soldering.
  • the power distributor according to the invention thus combines the advantageous features of both of the aforementioned technologies in that a lead frame with a high current carrying capacity is used, which, however, does not require bent contacts and can therefore be designed like a printed circuit board, the necessary contacts also being in the form of stamped parts.
  • These contacts are particularly advantageously designed as press-in contacts which are connected to the lead frame by means of spring-elastic press-in zones. Depending on the intended electrical load, these contacts can have several press-in zones, since this can further improve the mechanical and electrical connection to the lead frame.
  • FIGS. 1 to 4 Various production stages of a power distributor are shown in FIGS. 1 to 4.
  • FIGS. 5 and 6 each show the connection of a press-in contact with a lead frame in a power distributor according to the invention.
  • FIG. 1 shows a lead frame (1) consisting of several interconnect sections (2) connected by connecting webs (4), which are punched out of a single rectangular sheet metal.
  • the punching process also creates a number of holes (3), in particular in the end regions of the respective conductor track sections (2).
  • the conductor track sections are extrusion-coated with plastic, in particular in the area of the separating joints, as shown in FIG. Excluded from the plastic coating (6) are, in particular, those connecting webs (4) which are not intended for the electrical but only for the provisional mechanical connection of conductor track sections.
  • the schematic representation of FIG. 3 shows the lead frame (1) after a further production step, in which within the clearance areas (10) excluded from the plastic encapsulation (6) the webs connecting the conductor track sections have been punched out in order to be electrically separated from one another on the lead frame (1) Creating areas. These conductor track sections (2) are thereby electrically separated from one another and are now only mechanically connected to one another via the plastic coating (6).
  • contacts (7) with spring-elastic press-in zones are pressed into the holes in the conductor track sections (2).
  • a punched grid (1) equipped in this way is shown in FIG. 4.
  • FIG. 5 shows an exemplary embodiment of a press-in contact (7) as a knife contact.
  • This has in its upper section a clamping area (9) for the production of electrical and mechanical connections, and in its lower section two resilient press-in zones (8) which are pressed into pre-punched holes (3) in the lead frame (1) and held by them without soldering become.
  • the press-in contact (7) can also have one or more than two press-in zones (8) which can be pressed into a corresponding number of holes (3) in the lead frame (1).
  • the press-in contact (7) can be inserted into the holes (3) of the conductor track sections (2) both from the top and from the bottom.
  • FIG. 6 shows a variant of the contact (7) inserted into the lead frame (1), which is designed here as a simple flat plug. Moreover shows the figure 6 that the contact (7) can be easily inserted from the opposite side into the lead frame (1).

Abstract

A power distributor for a motor vehicle is disclosed, comprising at least one pressed screen, in which contacts are pressed, whereby the contacts comprise at least one and preferably several spring elastic pressing zones which have a non-solder connection to the pressed screen.

Description

Leistungsverteiler für ein Kraftfahrzeug Power distributor for a motor vehicle
Die vorliegende Erfindung betrifft einen Leistungsverteiler für ein Kraftfahrzeug mit mindestens einem Stanzgitter, in das Kontakte eingepreßt sind.The present invention relates to a power distributor for a motor vehicle with at least one lead frame into which contacts are pressed.
Derartige Leistungsverteiler kommen in Kraftfahrzeugen zur Verteilung hoher Ströme, insbesondere bei sogenannten Zentralelektriken zur Anwendung.Power distributors of this type are used in motor vehicles for distributing high currents, in particular in what are known as central electrical systems.
Bekannte Leistungsverteiler werden entweder in reiner Stanzgitter-Technik ausgeführt oder in Leiterplatten-Technik mit Einpreßkontakten. Eine reine Stanzgitter-Technik hat aufgrund der erforderlichen Arbeitsschritte (stanzen, biegen, trennen) hohe Werkzeugkosten zur Folge. Weitere Nachteile sind die schlechten Änderungsmöglichkeiten, der erforderliche relativ große Bauraum und das relativ hohe Gewicht. Bei der Leiterplatten-Technik stört der relativ hohe Stückpreis der Leiterplatte und die eingeschränkte Stromtragfähigkeit.Known power distributors are either designed using pure lead frame technology or in printed circuit board technology with press-in contacts. A pure lead frame technology results in high tool costs due to the required work steps (punching, bending, separating). Other disadvantages are the poor possibilities for changes, the relatively large installation space required and the relatively high weight. With PCB technology, the relatively high unit price of the PCB and the limited current carrying capacity are disturbing.
Es stellte sich daher die Aufgabe, einen Leistungsverteiler zu schaffen, welcher die vorgenannten Nachteile bekannter Leistungsverteiler vermeidet.It was therefore the task of creating a power distributor that avoids the aforementioned disadvantages of known power distributors.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kontakte mindestens eine und vorzugsweise mehrere federelastische Einpreßzonen aufweisen, die lötfrei mit dem Stanzgitter verbunden sind.This object is achieved in that the contacts have at least one and preferably a plurality of resilient press-in zones which are connected to the lead frame without soldering.
Der erfindungsgemäße Leistungsverteiler vereinigt damit die vorteilhaften Merkmale beider vorgenannter Technologien, indem ein Stanzgitter mit einer hohen Stromtragfähigkeit zur Anwendung kommt, welches allerdings ohne gebogene Kontakte auskommt und daher wie eine Leiterplatte eben ausgeführt werden kann, wobei die erforderlichen Kontakte ebenfalls als Stanzteile ausgeführt sind. Diese Kontakte sind dabei besonders vorteilhaft als Einpreßkontakte ausgeführt, die mittels federelastischer Einpreßzonen mit dem Stanzgitter verbunden sind. Je nach vorgesehener elektrischer Belastung können diese Kontakte mehrere Einpreßzonen aufweisen, da dadurch die mechanische und elektrische Verbindung zum Stanzgitter weiter verbessert werden kann.The power distributor according to the invention thus combines the advantageous features of both of the aforementioned technologies in that a lead frame with a high current carrying capacity is used, which, however, does not require bent contacts and can therefore be designed like a printed circuit board, the necessary contacts also being in the form of stamped parts. These contacts are particularly advantageously designed as press-in contacts which are connected to the lead frame by means of spring-elastic press-in zones. Depending on the intended electrical load, these contacts can have several press-in zones, since this can further improve the mechanical and electrical connection to the lead frame.
Ein Ausführungsbeispiel des erfindungsgemäßen Leistungsverteilers ist in der Zeichnung dargestellt und wird im folgenden anhand der Zeichnung näher erläutert.An embodiment of the power distributor according to the invention is shown in the drawing and is explained in more detail below with reference to the drawing.
In den Figuren 1 bis 4 sind hierzu verschiedene Fertigungsstadien eines Leistungsverteilers dargestellt. Die Figur 5 und 6 zeigen jeweils die Verbindung von einem Einpreßkontakt mit einem Stanzgitter in einem erfindungsgemäßen Leistungsverteiler.Various production stages of a power distributor are shown in FIGS. 1 to 4. FIGS. 5 and 6 each show the connection of a press-in contact with a lead frame in a power distributor according to the invention.
Die Figur 1 stellt ein Stanzgitter (1) dar, bestehend aus mehreren durch Verbindungsstege (4) verbundenen Leiterbahnabschnitten (2), welche aus einem einzigen rechteckigen Metallblech herausgestanzt sind. Neben den Trennfugen (5) zwischen den Leiterbahnabschnitten (2) sind durch den Stanzvorgang auch eine Anzahl von Löchern (3), insbesondere in die Endbereiche der jeweiligen Leiterbahnabschnitten (2) eingebracht.FIG. 1 shows a lead frame (1) consisting of several interconnect sections (2) connected by connecting webs (4), which are punched out of a single rectangular sheet metal. In addition to the parting lines (5) between the conductor track sections (2), the punching process also creates a number of holes (3), in particular in the end regions of the respective conductor track sections (2).
Nach dem nächsten Fertigungsschritt sind die Leiterbahnabschnitte insbesondere im Bereich der Trennfugen mit Kunststoff umspritzt wie in der Figur 2 dargestellt. Von der Kunststoffumsphtzung (6) ausgenommen sind insbesondere diejenigen Verbindungsstege (4), die nicht zur elektrischen, sondern ausschließlich zur vorläufigen mechanischen Verbindung von Leiterbahnabschnitten vorgesehen sind. Die schematische Darstellung der Figur 3 zeigt das Stanzgitter (1 ) nach einem weiteren Fertigungsschritt, in welchem innerhalb den von der Kunststoffumsphtzung (6) ausgenommenen Freistanzbereichen (10) die die Leiterbahnabschnitte verbindenden Stege ausgestanzt wurden, um auf dem Stanzgitter (1 ) elektrisch voneinander getrennte Bereiche zu schaffen. Diese Leiterbahnabschnitte (2) sind dadurch elektrisch voneinander getrennt und nun nur noch über die Kunststoffumsphtzung (6) mechanisch miteinander verbunden.After the next production step, the conductor track sections are extrusion-coated with plastic, in particular in the area of the separating joints, as shown in FIG. Excluded from the plastic coating (6) are, in particular, those connecting webs (4) which are not intended for the electrical but only for the provisional mechanical connection of conductor track sections. The schematic representation of FIG. 3 shows the lead frame (1) after a further production step, in which within the clearance areas (10) excluded from the plastic encapsulation (6) the webs connecting the conductor track sections have been punched out in order to be electrically separated from one another on the lead frame (1) Creating areas. These conductor track sections (2) are thereby electrically separated from one another and are now only mechanically connected to one another via the plastic coating (6).
Im vierten Fertigungsschritt werden Kontakte (7) mit federelastischen Einpreßzonen in die Löcher der Leiterbahnabschnitte (2) eingepreßt. Ein derart bestücktes Stanzgitter (1 ) zeigt die Figur 4.In the fourth production step, contacts (7) with spring-elastic press-in zones are pressed into the holes in the conductor track sections (2). A punched grid (1) equipped in this way is shown in FIG. 4.
Die Verbindung zwischen dem Stanzgitter (1 ) und einem Einpreßkontakt (7) wird in den Figuren 5 und 6 weiter verdeutlicht. Hierbei zeigt die Figur 5 eine beispielhafte Ausführung eines Einpreßkontakts (7) als Messerkontakt. Dieser weist in seinem oberen Abschnitt einen Klemmbereich (9) zur Herstellung von elektrischen und mechanischer Verbindungen, sowie in seinem unteren Abschnitt zwei federnde Einpreßzonen (8) auf, welche in vorgestanzte Löcher (3) des Stanzgitters (1 ) eingepreßt und von diesen lötfrei gehalten werden. Je nach erforderlicher elektrischer Belastbarkeit kann der Einpreßkontakt (7) auch einen oder auch mehr als zwei Einpreßzonen (8) aufweisen, die in eine entsprechende Anzahl von Löchern (3) im Stanzgitter (1 ) eingepreßt werden können. Der Einpreßkontakt (7) kann dabei sowohl von der Oberseite wie auch von der Unterseite in die Löcher (3) der Leiterbahnabschnitte (2) eingefügt sein.The connection between the lead frame (1) and a press-in contact (7) is further illustrated in Figures 5 and 6. FIG. 5 shows an exemplary embodiment of a press-in contact (7) as a knife contact. This has in its upper section a clamping area (9) for the production of electrical and mechanical connections, and in its lower section two resilient press-in zones (8) which are pressed into pre-punched holes (3) in the lead frame (1) and held by them without soldering become. Depending on the required electrical load capacity, the press-in contact (7) can also have one or more than two press-in zones (8) which can be pressed into a corresponding number of holes (3) in the lead frame (1). The press-in contact (7) can be inserted into the holes (3) of the conductor track sections (2) both from the top and from the bottom.
Die Figur 6 zeigt eine Variante des in das Stanzgitter (1 ) eingefügten Kontaktes (7), der hier als einfacher Flachstecker ausgeführt ist. Außerdem zeigt die Figur 6 auf, daß der Kontakt (7) ohne weiteres auch von der Gegenseite in das Stanzgitter (1 ) eingefügt werden kann. FIG. 6 shows a variant of the contact (7) inserted into the lead frame (1), which is designed here as a simple flat plug. Moreover shows the figure 6 that the contact (7) can be easily inserted from the opposite side into the lead frame (1).
Bezugszeichenreference numeral
1 Stanzgitter1 lead frame
2 Leiterbahnabschni2 conductor track sections
3 Löcher3 holes
4 Verbindungsstege4 connecting bars
5 Trennfugen5 joints
6 Kunststoffumspritz6 plastic molding
7 (Einpreß)kontakt7 (press fit) contact
8 Einpreßzonen8 press-in zones
9 Klemmbereich9 clamping area
10 Freistanzbereiche 10 clearance areas

Claims

Patentansprüche claims
1. Leistungsverteiler für ein Kraftfahrzeug mit mindestens einem Stanzgitter, in das Kontakte eingepreßt sind, dadurch gekennzeichnet, daß die Kontakte (7) mindestens eine und vorzugsweise mehrere federelastische Einpreßzonen (8) aufweisen, die lötfrei mit dem Stanzgitter (1 ) verbunden sind.1. Power distributor for a motor vehicle with at least one lead frame into which contacts are pressed, characterized in that the contacts (7) have at least one and preferably a plurality of resilient press-in zones (8) which are connected to the lead frame (1) without soldering.
2. Leistungsverteiler nach Anspruch 1 , dadurch gekennzeichnet, daß die Kontakte (7) Flachstecker ausbilden.2. Power distributor according to claim 1, characterized in that the contacts (7) form flat plugs.
3. Leistungsverteiler nach Anspruch 1 , dadurch gekennzeichnet, daß die Kontakte (7) Messerkontakte ausbildet.3. Power distributor according to claim 1, characterized in that the contacts (7) forms knife contacts.
4. Leistungsverteiler nach Anspruch 3, dadurch gekennzeichnet, daß die Kontakte (7) Klemmverbinder ausbilden.4. Power distributor according to claim 3, characterized in that the contacts (7) form clamp connectors.
5. Leistungsverteiler nach Anspruch 4, dadurch gekennzeichnet, daß die Kontakte (7) Schneid-Klemmverbinder ausbilden.5. Power distributor according to claim 4, characterized in that the contacts (7) form insulation displacement connectors.
6. Leistungsverteiler nach Anspruch 1 , dadurch gekennzeichnet, daß das Stanzgitter (1 ) aus mehreren nebeneinander angeordneten Metallteilen besteht, deren Trennfugen (5) zumindest teilweise kunststoffumspritzt sind. 6. Power distributor according to claim 1, characterized in that the lead frame (1) consists of a plurality of metal parts arranged side by side, the joints (5) are at least partially extrusion-coated.
PCT/EP2005/001287 2004-02-11 2005-02-09 Power distributor for a motor vehicle WO2005078867A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410006575 DE102004006575A1 (en) 2004-02-11 2004-02-11 Power distributor for a motor vehicle
DE102004006575.6 2004-02-11

Publications (1)

Publication Number Publication Date
WO2005078867A1 true WO2005078867A1 (en) 2005-08-25

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ID=34813237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/001287 WO2005078867A1 (en) 2004-02-11 2005-02-09 Power distributor for a motor vehicle

Country Status (2)

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DE (1) DE102004006575A1 (en)
WO (1) WO2005078867A1 (en)

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CN104813541A (en) * 2012-07-05 2015-07-29 开开特股份公司 Method for connecting an electrical component to a component support, and a device
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WO2014033115A3 (en) * 2012-08-30 2014-04-17 Valeo Systemes Thermiques Electrical fluid heating device for a motor vehicle
EP3016208A1 (en) * 2015-08-24 2016-05-04 Continental Teves AG & Co. oHG Contact assembly and connecting contact
WO2017153029A1 (en) * 2016-03-05 2017-09-14 Wabco Gmbh Circuit of an electronic control unit
CN108702841A (en) * 2016-03-05 2018-10-23 威伯科欧洲有限责任公司 The circuit of electronic control unit

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