EP4094326B1 - Connecting arrangement and method for connecting a connecting arrangement to a component - Google Patents

Connecting arrangement and method for connecting a connecting arrangement to a component Download PDF

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Publication number
EP4094326B1
EP4094326B1 EP21712072.4A EP21712072A EP4094326B1 EP 4094326 B1 EP4094326 B1 EP 4094326B1 EP 21712072 A EP21712072 A EP 21712072A EP 4094326 B1 EP4094326 B1 EP 4094326B1
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EP
European Patent Office
Prior art keywords
opening
projection
bolt
flat
connection
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Active
Application number
EP21712072.4A
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German (de)
French (fr)
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EP4094326A1 (en
Inventor
Marie REDDER
Oliver Scharkowski
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Auto Kabel Management GmbH
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Auto Kabel Management GmbH
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Publication of EP4094326A1 publication Critical patent/EP4094326A1/en
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Publication of EP4094326B1 publication Critical patent/EP4094326B1/en
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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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/304—Clamped connections, spring connections utilising a screw or nut clamping member having means for improving contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/029—Welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the subject relates to a connection arrangement with a metallic flat conductor and a connection bracket and a method for connecting a connection arrangement to a component.
  • Flat conductors are being used more and more frequently to distribute electrical energy in automotive applications, particularly in motor vehicles, be they cars or trucks.
  • Flat conductors are particularly suitable for power distribution, since from a certain conductor cross-section they have larger surfaces compared to round conductors and thus have an improved current-carrying capacity.
  • flat conductors are used to transfer electrical energy between a battery, a starter and/or a generator.
  • a flat cable serves as what is known as an energy backbone for distributing electrical energy from a battery to a plurality of consumers and also between a drive battery and a drive motor in electrically operated vehicles.
  • the flat conductors have large conductor cross sections. Due to the large conductor cross sections, aluminum is often used as the metallic material for the flat conductors, as this is lighter than copper.
  • the contact resistance can increase over time, especially if the device is used in dynamic environments over a longer period of time. Among other things, this can occur because the contact area between the flat conductor and the connecting part is reduced due to the dynamic loading.
  • Aluminum in particular is subject to plastic deformation in dynamic environments due to its ductile properties. It must therefore be ensured that the aluminum is not or only slightly plastically deformed due to mechanical loads at the contact point in order not to negatively influence the contact resistance.
  • the publication TW 201 044 727 A relates to a connection device that includes a first conductor, such as a bus bar, a second conductor, such as a power supply bar, and a connection device that connects the first conductor and the second conductor, and to the use of the connection device in a panel or cabinet.
  • a connection device that includes a first conductor, such as a bus bar, a second conductor, such as a power supply bar, and a connection device that connects the first conductor and the second conductor, and to the use of the connection device in a panel or cabinet.
  • the object of the object was therefore to provide a connection bracket for flat conductors which, when used in dynamic environments with a long service life, ensures a consistently low contact resistance.
  • connection arrangement according to claim 1 and a method according to claim 14.
  • connection arrangement objectively includes a metallic flat conductor.
  • a metallic flat conductor is formed in particular from aluminum or an aluminum alloy. This can be E-Aluminum or Aluminum 99.5, for example.
  • the aluminum can in particular be soft annealed.
  • the flat conductor can be at least partially surrounded by an electrical insulator, for example made of plastic, e.g. silicone or PVC.
  • the flat conductor can be free of insulation in one end area.
  • the flat conductor can also be free of insulation in a central area. End area or middle area can be considered as connecting areas.
  • the flat conductor has a polygonal cross-sectional profile, in particular an at least quadrangular cross-sectional profile.
  • a polygonal cross-sectional profile in particular an at least quadrangular cross-sectional profile.
  • rectangular or square cross-sectional profiles are particularly preferred.
  • Such a cross-sectional profile is characterized in that the flat conductor has at least two surfaces that lie opposite one another and run parallel to one another in the longitudinal direction, at least in a connection area.
  • the flat conductor has a first through-opening in the connection area.
  • the passage opening can be drilled, punched, sawed, milled or shaped in some other way.
  • the through hole runs between the surfaces which run parallel to each other in the connection area.
  • the through-opening is formed to receive a bolt, which is inserted through the through-opening in order to arrange the connection arrangement on a component, as will be described below.
  • the flat conductor has at least one second through-opening between the surfaces in the connection area.
  • This second passage opening serves to accommodate a metal connection console.
  • a projection of the connection panel is inserted into this second through hole, as will be described below.
  • the metal connection console can be made of aluminum or an aluminum alloy. It is also possible for the metal connection bracket, like the flat conductor, to be made of copper or a copper alloy.
  • the connection panel is formed as a flat part and has a flat area that is formed as a contact surface to the flat conductor. The contact surface is in contact with one of the surfaces of the flat conductor in the connection area.
  • the contact area and/or the surface of the flat conductor can be metallically coated, in particular nickel-plated and/or tin-plated. In this case, the metallic coating can be provided alternatively or cumulatively on the flat conductor or on the connection console.
  • a large contact surface is provided via the connection console, in particular the contact surface of the connection console, over which an electric current can flow with low contact resistance.
  • connection console The aim now is to make this connection at the contact surface between the connection console and the flat conductor stable over the long term and to protect it from degradation, particularly in dynamic environments.
  • connection console has a first through-hole.
  • the through-hole can be shaped in accordance with the through-opening, for example congruently thereto.
  • the through-hole can also be drilled, punched, sawn, milled or shaped in some other way.
  • connection bracket is placed with the contact area on the flat conductor in the connection area, the through-opening and through-hole are aligned with one another.
  • the aligned first openings/recesses are for receiving a bolt as will be described below.
  • connection bracket At least one projection is formed on the connection bracket to improve long-term stability. This projection preferably protrudes essentially perpendicularly from the contact surface.
  • connection console When the connection console rests against the flat conductor with its contact surface in the connection area, not only is the first through-hole aligned with the first through-opening, but the projection is also arranged in the second through-opening.
  • connection console is also connected with its contact surface to the flat conductor in the connection area in a materially bonded manner.
  • the connection bracket which is preferably formed from a different metal than the flat conductor, enables long-term stable contacting of the flat conductor with a component via the connection arrangement.
  • connection console to the flat conductor
  • material-locking joining of the connection console to the flat conductor is preferably carried out by means of ultrasonic welding, friction welding, friction stir welding, resistance welding, laser welding or the like.
  • a full-surface or partial connection between the contact surface and the flat conductor in the connection area is made possible in particular by friction welding, in particular ultrasonic welding.
  • Resistance welding is also suitable for ensuring a full-surface connection of the contact surface with the flat conductor.
  • the flat conductor is thus connected to the flat conductor over a large area via the contact surface and is arranged thereon in a mechanically stable manner via the projections.
  • the projection protrudes essentially perpendicularly from the contact surface.
  • the surfaces between which the second through-opening runs are parallel to each other, so that the second through-opening runs perpendicular to the surface.
  • the projection in the second passage opening it is also preferably formed perpendicularly on the contact surface.
  • the projection be essentially cylindrical, in particular hollow-cylindrical.
  • the second Through opening can have an inner lateral surface which is congruent to the outer lateral surface of the projection.
  • the projection In order to absorb clamping forces and to relieve the flat conductor when it is screwed onto a component, the projection has a longitudinal extension starting from the contact surface which is equal to the distance between the surfaces of the flat conductor in the connection area.
  • the length of the projection is therefore equal to the length of the second through-opening (which corresponds to the height of the flat conductor in the connection area), which means that the projection completely fills out the through-opening in the inserted state.
  • a flat part can thus lie against the projection and the projection absorbs contact pressure forces that are exerted on the flat part and act in the direction of the flat conductor, in particular perpendicularly to the surface of the flat conductor in the connection area.
  • the outer surface of the projection rests at least partially, in particular completely, against an inner surface of the second through-opening.
  • a current flow is possible not only via the contact surface, but also over the surface on which the projection rests on the inner lateral surface of the through-opening.
  • a particularly good connection is achieved when the projection and the second passage opening have a transition fit or a press fit.
  • connection console can be formed by cutting or without cutting, in particular by means of stamping and/or bending. It is possible to press out the projections from the material of the flat part by means of punching during the preparation of the flat part. Designing the projection in one piece with the flat part prevents contact resistance from occurring between the projection and the flat part.
  • an end face of the projection is flush with the surface of the flat conductor.
  • the surface of the flat conductor that is on the side facing away from the connection console is the surface that is flush with the projection.
  • the number of second through openings and projections be the same.
  • more than one second through-opening and one projection are provided, so that the number of mechanical connections between the connection console and the flat conductor is increased.
  • the geometric arrangement of the projections around the through-hole is congruent with a geometric arrangement of the second through-opening around the first through-opening. This means that the connection console can be inserted into the second through-opening with its projections aligned with the first through-opening.
  • the second through-openings are arranged around the first through-opening at preferably equal angular distances from one another.
  • the second through-openings enclose the first through-opening, that is to say the second through-openings lie circumferentially around the first through-opening.
  • the second through-openings preferably lie on an arc of a circle that runs around the first through-opening.
  • a second flat part for example in the form of a washer, be arranged on the surface of the flat conductor opposite the connection console.
  • This flat part is preferably at least in contact with the end faces of the projections, but in particular at the same time with the end faces of the projections and the surface of the flat conductor.
  • a bolt having a flange-like bolt head and a bolt pin extending from the bolt head may be inserted into the second flat part.
  • the second flat part has a receptacle for this purpose, for example an opening, bore or the like.
  • the bolt pin is guided through the second flat part, the first passage opening and the first passage receptacle and connected to a component in such a way that the second flat part is clamped between the bolt head and the projection.
  • a clamping force can be exerted, which acts perpendicular to the second flat part in the direction of the flat conductor. This can be done in particular by screwing when the bolt pin is formed as a screw. This pressing force is absorbed by the projections, so that the mechanical stress on the flat conductor in the connection area is reduced, which is particularly helpful for a connection that is stable over the long term.
  • the bolt is a screw bolt. This can be screwed to the component.
  • the bolt presses the second flat part against the projection in the connected state.
  • the projection absorbs the contact pressure, so that a defined contact pressure of the bolt on the flat part is made possible.
  • the first through-opening and/or the first through-hole be formed as a round hole or as an elongated hole.
  • a further aspect is a method for connecting a component with a connection arrangement according to claim 14.
  • the contact surface the connection console arranged on the flat conductor.
  • At least one projection is inserted into at least one through-opening, it also being possible for several projections to be inserted into several through-openings.
  • This arrangement ensures that the first through-opening and the first through-hole are aligned with one another, so that a bolt can be inserted through these two.
  • a bolt is then inserted into the hole, the first through opening and the first through recess in order to connect the bolt to a component.
  • the second flat part is clamped between the bolt and the projection.
  • Fig. 1a shows a flat conductor 2 with an insulation 4.
  • the flat conductor 2 with the insulation 4 can also be referred to as a flat cable.
  • the flat cable in one Stripped end area so that the flat conductor 2 is bare in one end area. This end area can be referred to as the connection area 6 .
  • the flat conductor 2 has a rectangular cross-sectional profile, but square or other polygonal cross-sectional profiles are also conceivable.
  • the flat conductor 2 has two opposite broad surfaces 2a, 2b, which run parallel to one another in the connection region 6.
  • Fig. 1b shows the flat conductor 2, in which the connection area 6 lies between two areas with insulation 4.
  • the flat conductor 2 is bare in the connection area 6 .
  • the flat conductor 2 is in the connection area 6 as in FIG 2 shown with a first through-opening 8 and at least one, in the example shown four, second through-openings 10 .
  • the through openings 8, 10 can be punched, milled, drilled or cut out of the flat conductor 2. It can be seen that the second through-openings 10 enclose the first through-opening 8 .
  • the second through-openings 10 are at angular distances from one another around the first through-opening 8 .
  • the second through-openings 10 can lie, for example, on an arc of a circle around the first through-opening 8 .
  • connection panel 12 as in the 3a, b is shown applied to the flat conductor 2 .
  • Figure 3a shows a view of a connection console 12.
  • the connection console 12 has a through-hole 14.
  • the through-hole 14 can be shaped in accordance with the through-hole 8.
  • the through-hole 14 has in particular a geometrically congruent or geometrically similar shape to the first through-opening 8. This can be a round hole or an elongated hole, but other shapes are also possible, in particular angular shapes.
  • connection console 12 has at least one, preferably several, projections 16 .
  • the projections 16 are arranged around the through hole 14 .
  • the geometric arrangement of through-holes 14 and projections 16 to each other is in particular geometrically congruent to the geometric arrangement of the first through-opening 8 to the second through-openings 10.
  • the connection console 12 can thus be inserted with its projections 16 into the second through-openings 10.
  • the first passage opening 8 is then aligned with the passage recess 14.
  • the connection bracket 12 On the side of the projections 16, the connection bracket 12 has a contact surface 18.
  • Figure 3b shows a plan view of the contact surface 18. It can be seen that the projections 16 are hollow-cylindrical in shape. The projections 16 are formed in one piece from the connection bracket 12 in particular by means of stamping, bending or the like.
  • the connection console 12 is in particular made of copper or a copper alloy, whereas the flat conductor 2 is in particular made of aluminum or an aluminum alloy. Suitable metallic coatings, in particular tinning, nickel-plating or the like, are alternatively or cumulatively possible both on the flat conductor 2 in the connection area 6 and on the connection bracket 12 on the contact surface 18 .
  • connection console 12 In order to connect the connection console 12 to the flat conductor 2, it is inserted with its projections 16 into the second passage openings 10.
  • FIG 4 A plan view of the surface 2a of the flat conductor 2 is in FIG 4 shown. It can be seen that the projections 16 are inserted in the second passage openings 10 .
  • connection bracket 12 is in contact with the flat conductor 2 with its contact surface 18 .
  • the projections 16 are arranged in the second through openings 10 .
  • the contact surface 18 is integrally joined to the surface 2b of the flat conductor 2. This can be done, for example, by means of ultrasonic welding, resistance welding or the like.
  • a washer 20 or another flat part is placed on the flat conductor 2 and the projections 16 .
  • a bolt or a screw bolt is then screwed into a component 24 with a bolt head 22a and a bolt pin 22b.
  • the bolt head 22a is pressed onto the washer 20, which in turn is pressed against the end faces of the projections 16.
  • the projections 16 absorb the vertical contact pressure, so that the washer 20 is clamped between the bolt head 22a and the projections 16 and the flat conductor 2 .

Description

Der Gegenstand betrifft eine Verbindungsanordnung mit einem metallischen Flachleiter und einer Anschlusskonsole sowie ein Verfahren zum Verbinden einer Verbindungsanordnung mit einem Bauteil.The subject relates to a connection arrangement with a metallic flat conductor and a connection bracket and a method for connecting a connection arrangement to a component.

Zur Verteilung elektrischer Energie in automotiven Anwendungen, insbesondere in Kraftfahrzeugen, sei es Pkw oder Lkw, werden immer häufiger Flachleiter eingesetzt. Flachleiter eignen sich insbesondere für die Energieverteilung, da sie ab bestimmten Leiterquerschnitten gegenüber Rundleitern größere Oberflächen haben und somit eine verbesserte Stromtragfähigkeit aufweisen. Insbesondere werden Flachleiter eingesetzt, um elektrische Energie zwischen einer Batterie, einem Starter und/oder einem Generator zu übertragen. Als sogenannter Energy Backbone dient eine Flachleitung zur Verteilung elektrischer Energie von einer Batterie zu einer Mehrzahl von Verbrauchern als auch zwischen einer Antriebsbatterie und einem Antriebsmotor in elektrisch betriebenen Fahrzeugen. In allen Fällen haben die Flachleiter große Leiterquerschnitte. Häufig wird aufgrund der hohen Leiterquerschnitte Aluminium als metallischer Werkstoff für die Flachleiter eingesetzt, da dieses gegenüber Kupfer ein geringeres Gewicht hat.Flat conductors are being used more and more frequently to distribute electrical energy in automotive applications, particularly in motor vehicles, be they cars or trucks. Flat conductors are particularly suitable for power distribution, since from a certain conductor cross-section they have larger surfaces compared to round conductors and thus have an improved current-carrying capacity. In particular, flat conductors are used to transfer electrical energy between a battery, a starter and/or a generator. A flat cable serves as what is known as an energy backbone for distributing electrical energy from a battery to a plurality of consumers and also between a drive battery and a drive motor in electrically operated vehicles. In all cases, the flat conductors have large conductor cross sections. Due to the large conductor cross sections, aluminum is often used as the metallic material for the flat conductors, as this is lighter than copper.

Bei der Verteilung von elektrischer Energie in einem Fahrzeug ist es jedoch notwendig, den Flachleiter elektrisch mit den Verbrauchern zu verbinden, was elektrische Übergabepunkte erfordert, die hinsichtlich ihrer mechanischen als auch elektrischen Eigenschaften langzeitstabil sein müssen. Übergangswiderstände an den Übergabepunkten müssen gering sein, um dort elektrische Verluste gering zu halten, als auch um ein Überhitzen zu vermeiden. Gerade in Antriebssträngen der Fahrzeuge fließen sehr hohe Ströme, was zu hohen ohmschen Verlusten an den Übergabepunkten führt, wenn die Übergangswiderstände zu hoch sind.When distributing electrical energy in a vehicle, however, it is necessary to connect the flat conductor electrically to the consumers, which requires electrical transfer points that must be stable over the long term with regard to their mechanical and electrical properties. Contact resistance at the transfer points must be low in order to keep electrical losses low and to avoid overheating. Very high currents flow in vehicle drive trains in particular, which leads to high ohmic losses at the transfer points if the contact resistances are too high.

Insbesondere bei einem über einen längeren Zeitraum gedachten Einsatz in dynamischen Umgebungen kann sich der Übergangswiderstand mit Zeit erhöhen. Dies kann unter anderem dadurch auftreten, dass die Kontaktfläche zwischen dem Flachleiter und dem Verbindungsteil aufgrund der dynamischen Belastung verringert wird. So kommt es insbesondere bei Aluminium, aufgrund seiner duktilen Eigenschaft, zu plastischen Verformungen in dynamischen Umgebungen. Daher ist dafür Sorge zu tragen, dass das Aluminium aufgrund mechanischer Belastungen an der Kontaktstelle nicht oder nur gering plastisch verformt wird um dadurch den Übergangswiderstand nicht negativ zu beeinflussen.The contact resistance can increase over time, especially if the device is used in dynamic environments over a longer period of time. Among other things, this can occur because the contact area between the flat conductor and the connecting part is reduced due to the dynamic loading. Aluminum in particular is subject to plastic deformation in dynamic environments due to its ductile properties. It must therefore be ensured that the aluminum is not or only slightly plastically deformed due to mechanical loads at the contact point in order not to negatively influence the contact resistance.

Die Veröffentlichung TW 201 044 727 A bezieht sich auf eine Verbindungsvorrichtung, die einen ersten Leiter, wie eine Stromschiene, einen zweiten Leiter, wie eine Stromversorgungsschiene, und eine Verbindungsvorrichtung, die den ersten Leiter und den zweiten Leiter verbindet, umfasst, sowie auf die Verwendung der Verbindungsvorrichtung in einer Schalttafel oder einem Schaltschrank.The publication TW 201 044 727 A relates to a connection device that includes a first conductor, such as a bus bar, a second conductor, such as a power supply bar, and a connection device that connects the first conductor and the second conductor, and to the use of the connection device in a panel or cabinet.

Ausgehend hiervon lag dem Gegenstand daher die Aufgabe zugrunde, eine Anschlusskonsole für Flachleiter zur Verfügung zu stellen, welche bei einem Einsatz in dynamischen Umgebungen bei hohen Standzeiten einen gleichbleibend geringen Übergangswiderstand gewährleistet.Based on this, the object of the object was therefore to provide a connection bracket for flat conductors which, when used in dynamic environments with a long service life, ensures a consistently low contact resistance.

Diese Aufgabe wird durch eine Verbindungsanordnung nach Anspruch 1 sowie ein Verfahren nach Anspruch 14 gelöst.This object is achieved by a connection arrangement according to claim 1 and a method according to claim 14.

Die Verbindungsanordnung umfasst gegenständlich einen metallischen Flachleiter. Ein metallischer Flachleiter ist dabei insbesondere aus Aluminium oder einer Aluminiumlegierung gebildet. Dies kann beispielsweise E-Aluminium oder Aluminium 99, 5 sein. Das Aluminium kann dabei insbesondere weich geglüht sein.The connection arrangement objectively includes a metallic flat conductor. A metallic flat conductor is formed in particular from aluminum or an aluminum alloy. This can be E-Aluminum or Aluminum 99.5, for example. The aluminum can in particular be soft annealed.

Der Flachleiter kann zumindest teilweise von einem elektrischen Isolator umgeben sein, beispielsweise aus Kunststoff, z.B. Silikon- oder PVC. In einem Endbereich kann der Flachleiter frei von der Isolierung sein. Auch kann der Flachleiter in einem Mittenbereich frei von der Isolierung sein. Endbereich oder Mittenbereich können als Verbindungsbereiche angesehen werden.The flat conductor can be at least partially surrounded by an electrical insulator, for example made of plastic, e.g. silicone or PVC. The flat conductor can be free of insulation in one end area. The flat conductor can also be free of insulation in a central area. End area or middle area can be considered as connecting areas.

Der Flachleiter hat ein mehreckiges Querschnittsprofil, insbesondere ein zumindest viereckiges Querschnittsprofil. Dabei sind insbesondere rechteckige oder quadratische Querschnittsprofile bevorzugt. Ein solches Querschnittsprofil zeichnet sich dadurch aus, dass der Flachleiter zumindest zwei einander gegenüber liegende, zumindest in einem Verbindungsbereich in Längsrichtung parallel zueinander verlaufende Oberflächen hat.The flat conductor has a polygonal cross-sectional profile, in particular an at least quadrangular cross-sectional profile. In this case, rectangular or square cross-sectional profiles are particularly preferred. Such a cross-sectional profile is characterized in that the flat conductor has at least two surfaces that lie opposite one another and run parallel to one another in the longitudinal direction, at least in a connection area.

In dem Verbindungsbereich hat der Flachleiter eine erste Durchgangsöffnung. Die Durchgangsöffnung kann dabei z.B. gebohrt, gestanzt, gesägt, gefräst oder in einer sonstigen Weise geformt werden. Die Durchgangsöffnung verläuft zwischen den Oberflächen, die im Verbindungsbereich parallel zueinander verlaufen. Die Durchgangsöffnung ist zur Aufnahme eines Bolzens gebildet, welcher zur Anordnung der Verbindungsanordnung an einem Bauteil durch die Durchgangsöffnung gesteckt wird, wie nachfolgend noch beschrieben werden wird.The flat conductor has a first through-opening in the connection area. The passage opening can be drilled, punched, sawed, milled or shaped in some other way. The through hole runs between the surfaces which run parallel to each other in the connection area. The through-opening is formed to receive a bolt, which is inserted through the through-opening in order to arrange the connection arrangement on a component, as will be described below.

Neben der ersten Durchgangsöffnung zwischen den beiden Oberflächen hat der Flachleiter zumindest eine zweite Durchgangsöffnung zwischen den Oberflächen im Verbindungsbereich. Diese zweite Durchgangsöffnung dient zur Aufnahme einer metallischen Anschlusskonsole. Insbesondere ein Vorsprung der Anschlusskonsole wird in diese zweite Durchgangsöffnung eingesetzt, wie nachfolgend beschrieben werden wird.In addition to the first through-opening between the two surfaces, the flat conductor has at least one second through-opening between the surfaces in the connection area. This second passage opening serves to accommodate a metal connection console. In particular, a projection of the connection panel is inserted into this second through hole, as will be described below.

Die metallische Anschlusskonsole kann, wie der Flachleiter, aus Aluminium oder einer Aluminiumlegierung gebildet sein. Auch ist es möglich, dass die metallische Anschlusskonsole, wie der Flachleiter, aus Kupfer oder einer Kupferlegierung gebildet ist. Die Anschlusskonsole ist als Flachteil gebildet und hat einen flächigen Bereich, der als Kontaktfläche zu dem Flachleiter gebildet ist. Die Kontaktfläche liegt an einer der Oberflächen des Flachleiters in dem Verbindungsbereich an. In dem Verbindungsbereich kann die Kontaktfläche und/oder die Oberfläche des Flachleiters metallisch beschichtet sein, insbesondere vernickelt und/oder verzinnt. Dabei kann alternativ oder kumulativ am Flachleiter oder an der Anschlusskonsole die metallische Beschichtung vorgesehen sein. Über die Anschlusskonsole, insbesondere die Kontaktfläche der Anschlusskonsole, wird eine große Kontaktfläche bereitgestellt, über die ein elektrischer Strom mit geringem Übergangswiderstand fließen kann.Like the flat conductor, the metal connection console can be made of aluminum or an aluminum alloy. It is also possible for the metal connection bracket, like the flat conductor, to be made of copper or a copper alloy. The connection panel is formed as a flat part and has a flat area that is formed as a contact surface to the flat conductor. The contact surface is in contact with one of the surfaces of the flat conductor in the connection area. In the connection area, the contact area and/or the surface of the flat conductor can be metallically coated, in particular nickel-plated and/or tin-plated. In this case, the metallic coating can be provided alternatively or cumulatively on the flat conductor or on the connection console. A large contact surface is provided via the connection console, in particular the contact surface of the connection console, over which an electric current can flow with low contact resistance.

Ziel ist es nun, diese Verbindung an der Kontaktfläche zwischen Anschlusskonsole und Flachleiter langzeitstabil zu gestalten und insbesondere in dynamischen Umgebungen vor Degradation zu schützen.The aim now is to make this connection at the contact surface between the connection console and the flat conductor stable over the long term and to protect it from degradation, particularly in dynamic environments.

Hierzu wird vorgeschlagen, dass die Anschlusskonsole eine erste Durchgangsausnehmung aufweist. Die Durchgangsausnehmung kann entsprechend der Durchgangsöffnung geformt sein, beispielsweise kongruent dazu. Auch kann die Durchgangsausnehmung gebohrt, gestanzt, gesägt, gefräst oder in einer sonstigen Weise geformt werden.To this end, it is proposed that the connection console has a first through-hole. The through-hole can be shaped in accordance with the through-opening, for example congruently thereto. The through-hole can also be drilled, punched, sawn, milled or shaped in some other way.

Wird die Anschlusskonsole mit dem Kontaktbereich an den Flachleiter im Verbindungsbereich angelegt, so fluchten Durchgangsöffnung und Durchgangsausnehmung zueinander.If the connection bracket is placed with the contact area on the flat conductor in the connection area, the through-opening and through-hole are aligned with one another.

Die fluchtenden ersten Öffnungen/Ausnehmungen dienen zur Aufnahme eines Bolzens, wie nachfolgend beschrieben werden wird.The aligned first openings/recesses are for receiving a bolt as will be described below.

Zur Verbesserung der Langzeitstabilität ist an der Anschlusskonsole zumindest ein Vorsprung angeformt. Dieser Vorsprung ragt bevorzugt im Wesentlichen senkrecht aus der Kontaktfläche heraus.At least one projection is formed on the connection bracket to improve long-term stability. This projection preferably protrudes essentially perpendicularly from the contact surface.

Wenn die Anschlusskonsole mit ihrer Kontaktfläche im Verbindungsbereich an dem Flachleiter anliegt, so ist nicht nur die erste Durchgangsausnehmung fluchtend an der ersten Durchgangsöffnung angelegt, sondern der Vorsprung ist zusätzlich in der zweiten Durchgangsöffnung angeordnet.When the connection console rests against the flat conductor with its contact surface in the connection area, not only is the first through-hole aligned with the first through-opening, but the projection is also arranged in the second through-opening.

Die Anschlusskonsole ist darüber hinaus mit ihrer Kontaktfläche stoffschlüssig mit dem Flachleiter im Verbindungsbereich verbunden. Durch die Anschlusskonsole, die bevorzugt aus einem anderen Metall gebildet ist als der Flachleiter, wird eine langzeitstabile Kontaktierung des Flachleiters über die Verbindungsanordnung mit einem Bauteil ermöglicht.The connection console is also connected with its contact surface to the flat conductor in the connection area in a materially bonded manner. The connection bracket, which is preferably formed from a different metal than the flat conductor, enables long-term stable contacting of the flat conductor with a component via the connection arrangement.

Das stoffschlüssige Fügen der Anschlusskonsole an dem Flachleiter erfolgt bevorzugt mittels Ultraschallschweißen, Reibschweißen, Rührreibschweißen, Widerstandsschweißen, Laserschweißen oder dergleichen. Eine vollflächige oder partielle Verbindung zwischen der Kontaktfläche und dem Flachleiter im Verbindungsbereich wird insbesondere durch ein Reibschweißen, insbesondere ein Ultraschallschweißen ermöglicht. Auch ist ein Widerstandsschweißen geeignet, eine vollflächige Verbindung der Kontaktfläche mit dem Flachleiter zu gewährleisten. Der Flachleiter ist somit über die Kontaktfläche großflächig an dem Flachleiter verbunden und über die Vorsprünge mechanisch stabil daran angeordnet.The material-locking joining of the connection console to the flat conductor is preferably carried out by means of ultrasonic welding, friction welding, friction stir welding, resistance welding, laser welding or the like. A full-surface or partial connection between the contact surface and the flat conductor in the connection area is made possible in particular by friction welding, in particular ultrasonic welding. Resistance welding is also suitable for ensuring a full-surface connection of the contact surface with the flat conductor. The flat conductor is thus connected to the flat conductor over a large area via the contact surface and is arranged thereon in a mechanically stable manner via the projections.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass der Vorsprung im Wesentlichen senkrecht aus der Kontaktfläche ragt. Die Oberflächen, zwischen denen die zweite Durchgangsöffnung verläuft, sind parallel zueinander, so dass die zweite Durchgangsöffnung senkrecht zu der Oberfläche verläuft. Um den Vorsprung in der zweiten Durchgangsöffnung anzuordnen, ist dieser ebenfalls bevorzugt senkrecht an der Kontaktfläche angeformt.According to one exemplary embodiment, it is proposed that the projection protrudes essentially perpendicularly from the contact surface. The surfaces between which the second through-opening runs are parallel to each other, so that the second through-opening runs perpendicular to the surface. In order to arrange the projection in the second passage opening, it is also preferably formed perpendicularly on the contact surface.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass der Vorsprung im Wesentlichen zylindrisch, insbesondere hohlzylindrisch ist. Die zweite Durchgangsöffnung kann eine innere Mantelfläche haben, die kongruent zur äußeren Mantelfläche des Vorsprungs ist.According to one exemplary embodiment, it is proposed that the projection be essentially cylindrical, in particular hollow-cylindrical. The second Through opening can have an inner lateral surface which is congruent to the outer lateral surface of the projection.

Zur Aufnahme von Klemmkräften und zur Entlastung des Flachleiters, wenn dieses an ein Bauteil angeschraubt wird, weist der Vorsprung ausgehend von der Kontaktfläche eine Längserstreckung auf, die gleich dem Abstand der Oberflächen des Flachleiters im Verbindungsbereich ist. Somit ist die Länge des Vorsprungs gleich der Länge der zweiten Durchgangsöffnung (was der Höhe des Flachleiters im Verbindungsbereich entspricht), was dazu führt, dass im eingesteckten Zustand der Vorsprung die Durchgangsöffnung vollständig ausfüllt. Somit kann ein Flachteil an dem Vorsprung anliegen und der Vorsprung nimmt Anpresskräfte, die auf das Flachteil ausgeübt werden und in Richtung des Flachleiters, insbesondere senkrecht auf die Oberfläche des Flachleiters im Verbindungsbereich wirken, aufnehmen.In order to absorb clamping forces and to relieve the flat conductor when it is screwed onto a component, the projection has a longitudinal extension starting from the contact surface which is equal to the distance between the surfaces of the flat conductor in the connection area. The length of the projection is therefore equal to the length of the second through-opening (which corresponds to the height of the flat conductor in the connection area), which means that the projection completely fills out the through-opening in the inserted state. A flat part can thus lie against the projection and the projection absorbs contact pressure forces that are exerted on the flat part and act in the direction of the flat conductor, in particular perpendicularly to the surface of the flat conductor in the connection area.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass der Vorsprung mit seiner äußeren Mantelfläche zumindest teilweise, insbesondere vollständig an einer inneren Mantelfläche der zweiten Durchgangsöffnung anliegt. Dadurch ist ein Stromfluss nicht nur über die Kontaktfläche, sondern auch die Fläche, an dem der Vorsprung an der inneren Mantelfläche der Durchgangsöffnung anliegt, möglich. Eine besonders gute Verbindung wird dann erreicht, wenn der Vorsprung und die zweite Durchgangsöffnung eine Übergangspassung oder eine Presspassung aufweisen.According to one exemplary embodiment, it is proposed that the outer surface of the projection rests at least partially, in particular completely, against an inner surface of the second through-opening. As a result, a current flow is possible not only via the contact surface, but also over the surface on which the projection rests on the inner lateral surface of the through-opening. A particularly good connection is achieved when the projection and the second passage opening have a transition fit or a press fit.

Der Vorsprung ist vorzugweise einstückig mit der Anschlusskonsole (das Flachteil) gebildet. Dabei kann die Anschlusskonsole spanhebend oder spanlos umgeformt werden, insbesondere mittels Stanzen und/oder Biegen. Es ist möglich, bei der Vorbereitung des Flachteils die Vorsprünge aus dem Material des Flachteils mittels Stanzen herauszudrücken. Eine einstückige Gestaltung des Vorsprungs mit dem Flachteil verhindert, dass ein Übergangswiderstand zwischen dem Vorsprung und dem Flachteil entsteht.The projection is preferably formed in one piece with the connection panel (the flat part). In this case, the connection console can be formed by cutting or without cutting, in particular by means of stamping and/or bending. It is possible to press out the projections from the material of the flat part by means of punching during the preparation of the flat part. Designing the projection in one piece with the flat part prevents contact resistance from occurring between the projection and the flat part.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass eine Stirnfläche des Vorsprungs bündig mit der Oberfläche des Flachleiters ist. Die Oberfläche des Flachleiters, welche auf der der Anschlusskonsole abgewandten Seite liegt, ist die Oberfläche, die bündig mit dem Vorsprung ist.According to one exemplary embodiment, it is proposed that an end face of the projection is flush with the surface of the flat conductor. The surface of the flat conductor that is on the side facing away from the connection console is the surface that is flush with the projection.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass die Anzahl der zweiten Durchgangsöffnung und der Vorsprünge gleich ist. Insbesondere sind mehr als eine zweite Durchgangsöffnung und ein Vorsprung vorgesehen, sodass die Anzahl der mechanischen Verbindungen zwischen der Anschlusskonsole und dem Flachleiter erhöht wird.According to one exemplary embodiment, it is proposed that the number of second through openings and projections be the same. In particular, more than one second through-opening and one projection are provided, so that the number of mechanical connections between the connection console and the flat conductor is increased.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass die geometrische Anordnung der Vorsprünge um die Durchgangsausnehmung herum kongruent zu einer geometrischen Anordnung der zweiten Durchgangsöffnung um die erste Durchgangsöffnung herum ist. Somit wird erreicht, dass die Anschlusskonsole fluchtend mit der ersten Durchgangsöffnung mit seinen Vorsprüngen in die zweiten Durchgangsöffnungen eingesetzt werden kann.According to one exemplary embodiment, it is proposed that the geometric arrangement of the projections around the through-hole is congruent with a geometric arrangement of the second through-opening around the first through-opening. This means that the connection console can be inserted into the second through-opening with its projections aligned with the first through-opening.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass zumindest zwei, bevorzugt zumindest drei zweite Durchgangsöffnungen in bevorzugt gleichen Winkelabständen zueinander um die erste Durchgangsöffnung herum angeordnet sind. Insbesondere schließen die zweiten Durchgangsöffnungen die erste Durchgangsöffnung ein, das heißt, die zweiten Durchgangsöffnungen liegen umlaufend um die erste Durchgangsöffnung herum. Bevorzugt liegen die zweiten Durchgangsöffnungen auf einem Kreisbogen, der um die erste Durchgangsöffnung herum verläuft.According to one exemplary embodiment, it is proposed that at least two, preferably at least three, second through-openings are arranged around the first through-opening at preferably equal angular distances from one another. In particular, the second through-openings enclose the first through-opening, that is to say the second through-openings lie circumferentially around the first through-opening. The second through-openings preferably lie on an arc of a circle that runs around the first through-opening.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass ein zweites Flachteil, beispielsweise in der Form einer Unterlegscheibe auf der Anschlusskonsole gegenüber liegenden Oberfläche des Flachleiters angeordnet ist. Dieses Flachteil liegt bevorzugt zumindest an den Stirnflächen der Vorsprünge, insbesondere jedoch gleichzeitig an den Stirnflächen der Vorsprünge als auch der Oberfläche des Flachleiters an.According to one exemplary embodiment, it is proposed that a second flat part, for example in the form of a washer, be arranged on the surface of the flat conductor opposite the connection console. This flat part is preferably at least in contact with the end faces of the projections, but in particular at the same time with the end faces of the projections and the surface of the flat conductor.

Ein Bolzen, der einen flanschartigen Bolzenkopf und einen sich vom Bolzenkopf erstreckenden Bolzenstift hat, kann in das zweite Flachteil eingesteckt sein. Das zweite Flachteil hat hierfür eine Aufnahme, beispielsweise eine Öffnung, Bohrung oder dergleichen.A bolt having a flange-like bolt head and a bolt pin extending from the bolt head may be inserted into the second flat part. The second flat part has a receptacle for this purpose, for example an opening, bore or the like.

Zur Befestigung der Verbindungsanordnung an ein Bauteil wird der Bolzenstift durch das zweite Flachteil, die erste Durchgangsöffnung und die erste Durchgangsaufnahme geführt und mit einem Bauteil derart verbunden, dass das zweite Flachteil zwischen dem Bolzenkopf und dem Vorsprung klemmend gehalten ist. Durch die Verbindung des Bolzens mit dem Bauteil kann eine Klemmkraft, die senkrecht das zweite Flachteil in Richtung des Flachleiters wirkt, ausgeübt werden. Dies kann insbesondere durch ein Verschrauben erfolgen, wenn der Bolzenstift als Schraube gebildet ist. Diese Anpresskraft wird durch die Vorsprünge aufgenommen, so dass die mechanische Belastung des Flachleiters im Verbindungsbereich reduziert ist, was insbesondere für eine langzeitstabile Verbindung hilfreich ist.To fasten the connection arrangement to a component, the bolt pin is guided through the second flat part, the first passage opening and the first passage receptacle and connected to a component in such a way that the second flat part is clamped between the bolt head and the projection. By connecting the bolt to the component, a clamping force can be exerted, which acts perpendicular to the second flat part in the direction of the flat conductor. This can be done in particular by screwing when the bolt pin is formed as a screw. This pressing force is absorbed by the projections, so that the mechanical stress on the flat conductor in the connection area is reduced, which is particularly helpful for a connection that is stable over the long term.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass der Bolzen ein Schraubbolzen ist. Dieser lässt sich mit dem Bauteil verschrauben.According to one embodiment it is proposed that the bolt is a screw bolt. This can be screwed to the component.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass der Bolzen das zweite Flachteil im verbundenen Zustand gegen den Vorsprung drückt. Der Vorsprung nimmt die Anpresskraft auf, so dass eine definierte Anpresskraft des Bolzens auf das Flachteil ermöglicht ist.According to one exemplary embodiment, it is proposed that the bolt presses the second flat part against the projection in the connected state. The projection absorbs the contact pressure, so that a defined contact pressure of the bolt on the flat part is made possible.

Gemäß einem Ausführungsbeispiel wird vorgeschlagen, dass die erste Durchgangsöffnung und/oder die erste Durchgangsausnehmung als Rundloch oder als Langloch gebildet sind.According to one exemplary embodiment, it is proposed that the first through-opening and/or the first through-hole be formed as a round hole or as an elongated hole.

Ein weiterer Aspekt ist ein Verfahren zum Verbinden eines Bauteils mit einer Verbindungsanordnung gemäß Anspruch 14. Dabei wird die Kontaktfläche der Anschlusskonsole an dem Flachleiter angeordnet. Zumindest der eine Vorsprung wird in zumindest die eine Durchgangsöffnung eingesteckt, wobei auch mehrere Vorsprünge in mehrere Durchgangsöffnungen eingesteckt werden können. Bei dieser Anordnung wird sichergestellt, dass die erste Durchgangsöffnung und die erste Durchgangsausnehmung miteinander fluchten, so dass durch diese beiden ein Bolzen durchgesteckt werden kann. Nachdem die Anschlusskonsole an dem Flachleiter angeordnet wurde, wird die Kontaktfläche der Anschlusskonsole stoffschlüssig mit der Oberfläche des Flachleiters gefügt. Auf der der Anschlusskonsole gegenüber liegenden Seite des Flachleiters wird ein zweites Flachteil mit einem Loch an der ersten Durchgangsöffnung angelegt.A further aspect is a method for connecting a component with a connection arrangement according to claim 14. In this case, the contact surface the connection console arranged on the flat conductor. At least one projection is inserted into at least one through-opening, it also being possible for several projections to be inserted into several through-openings. This arrangement ensures that the first through-opening and the first through-hole are aligned with one another, so that a bolt can be inserted through these two. After the connection console has been arranged on the flat conductor, the contact surface of the connection console is joined to the surface of the flat conductor in a materially bonded manner. A second flat part with a hole at the first through-opening is placed on the side of the flat conductor opposite the connection console.

Anschließend wird ein Bolzen in das Loch, die erste Durchgangsöffnung und die erste Durchgangsausnehmung eingesteckt, um den Bolzen mit einem Bauteil zu verbinden. Dabei wird das zweite Flachteil zwischen dem Bolzen und dem Vorsprung verklemmt.A bolt is then inserted into the hole, the first through opening and the first through recess in order to connect the bolt to a component. The second flat part is clamped between the bolt and the projection.

Nachfolgend wird der Gegenstand anhand einer Ausführungsbeispiele zeigenden Zeichnung näher erläutert. In der Zeichnung zeigen:

Fig. 1a, b
Flachleiter mit Verbindungsbereichen;
Fig. 2
eine Draufsicht auf einen Flachleiter mit einer ersten Durchgangsöffnung und vier zweiten Durchgangsöffnungen;
Fig. 3a, b eine
Anschlusskonsole;
Fig. 4
einen Flachleiter mit einer angeschlossenen Anschlusskonsole;
Fig. 5
einen Längsschnitt durch eine Verbindungsanordnung mit einem Bauteil.
The object is explained in more detail below with reference to a drawing showing exemplary embodiments. Show in the drawing:
Fig. 1a, b
Flat conductors with connection areas;
2
a plan view of a flat conductor with a first through-opening and four second through-openings;
Fig. 3a, b a
connection console;
4
a flat conductor with an attached connection panel;
figure 5
a longitudinal section through a connection arrangement with a component.

Fig. 1a zeigt einen Flachleiter 2 mit einer Isolation 4. Der Flachleiter 2 mit der Isolation 4 kann auch als Flachkabel bezeichnet werden. In der Fig. 1a ist das Flachkabel in einem Endbereich abisoliert, so dass in einem Endbereich der Flachleiter 2 blank ist. Dieser Endbereich kann als Verbindungsbereich 6 bezeichnet werden. Fig. 1a shows a flat conductor 2 with an insulation 4. The flat conductor 2 with the insulation 4 can also be referred to as a flat cable. In the Fig. 1a is the flat cable in one Stripped end area so that the flat conductor 2 is bare in one end area. This end area can be referred to as the connection area 6 .

Zu erkennen ist, dass der Flachleiter 2 ein rechteckiges Querschnittsprofil hat, es sind jedoch auch quadratische oder andere mehreckige Querschnittsprofile denkbar. Der Flachleiter 2 hat zwei einander gegenüber liegende breite Oberflächen 2a, 2b, die im Verbindungsbereich 6 parallel zueinander verlaufen.It can be seen that the flat conductor 2 has a rectangular cross-sectional profile, but square or other polygonal cross-sectional profiles are also conceivable. The flat conductor 2 has two opposite broad surfaces 2a, 2b, which run parallel to one another in the connection region 6.

Fig. 1b zeigt den Flachleiter 2, bei dem der Verbindungsbereich 6 zwischen zwei Bereichen mit Isolation 4 liegt. Auch hier liegt der Flachleiter 2 im Verbindungsbereich 6 blank. Ebenfalls sind auch hier breite Oberflächen 2a, 2b parallel zueinander verlaufend. Fig. 1b shows the flat conductor 2, in which the connection area 6 lies between two areas with insulation 4. Here, too, the flat conductor 2 is bare in the connection area 6 . Also here are wide surfaces 2a, 2b running parallel to each other.

Zur Bereitstellung einer Verbindungsanordnung wird der Flachleiter 2 im Verbindungsbereich 6 wie in der Fig. 2 gezeigt mit einer ersten Durchgangsöffnung 8 und zumindest einer, in dem gezeigten Beispiel vier zweiten Durchgangsöffnungen 10 versehen. Die Durchgangsöffnungen 8, 10 können aus dem Flachleiter 2 gestanzt, gefräst, gebohrt oder geschnitten werden. Zu erkennen ist, dass die zweiten Durchgangsöffnungen 10 die erste Durchgangsöffnung 8 umschließen. Insbesondere liegen die zweiten Durchgangsöffnungen 10 in Winkelabständen zueinander um die erste Durchgangsöffnung 8. Dabei können die zweiten Durchgangsöffnungen 10 beispielsweise auf einem Kreisbogen um die erste Durchgangsöffnung 8 liegen.To provide a connection arrangement, the flat conductor 2 is in the connection area 6 as in FIG 2 shown with a first through-opening 8 and at least one, in the example shown four, second through-openings 10 . The through openings 8, 10 can be punched, milled, drilled or cut out of the flat conductor 2. It can be seen that the second through-openings 10 enclose the first through-opening 8 . In particular, the second through-openings 10 are at angular distances from one another around the first through-opening 8 . The second through-openings 10 can lie, for example, on an arc of a circle around the first through-opening 8 .

Nachdem der Verbindungsbereich 6 mit den Durchgangsöffnungen 8, 10 hergestelltAfter the connection area 6 with the through-openings 8, 10 has been produced

wurde, wird eine Anschlusskonsole 12, wie sie in den Fig. 3a, b gezeigt ist, an den Flachleiter 2 angelegt. Fig. 3a zeigt eine Ansicht einer Anschlusskonsole 12. Die Anschlusskonsole 12 hat eine Durchgangsausnehmung 14. Die Durchgangsausnehmung 14 kann entsprechend der Durchgangsöffnung 8 geformt werden. Die Durchgangsausnehmung 14 hat insbesondere eine geometrisch kongruente oder geometrisch ähnliche Form zu der ersten Durchgangsöffnung 8. Dies kann ein Rundloch oder ein Langloch sein, andere Formen sind jedoch auch möglich, insbesondere eckige Formen.Was, a connection panel 12, as in the 3a, b is shown applied to the flat conductor 2 . Figure 3a shows a view of a connection console 12. The connection console 12 has a through-hole 14. The through-hole 14 can be shaped in accordance with the through-hole 8. FIG. The through-hole 14 has in particular a geometrically congruent or geometrically similar shape to the first through-opening 8. This can be a round hole or an elongated hole, but other shapes are also possible, in particular angular shapes.

Die Anschlusskonsole 12 weist darüber hinaus zumindest einen, bevorzugt mehrere Vorsprünge 16 auf. Die Vorsprünge 16 sind um die Durchgangsausnehmung 14 herum angeordnet. Die geometrische Anordnung von Durchgangsausnehmungen 14 und Vorsprüngen 16 zueinander ist insbesondere geometrisch kongruent zu der geometrischen Anordnung der ersten Durchgangsöffnung 8 zu den zweiten Durchgangsöffnungen 10. Die Anschlusskonsole 12 kann somit mit ihren Vorsprüngen 16 in die zweiten Durchgangsöffnungen 10 eingesteckt werden. Dann fluchtet die erste Durchgangsöffnung 8 mit der Durchgangsausnehmung 14. Auf der Seite der Vorsprünge 16 hat die Anschlusskonsole 12 eine Kontaktfläche 18.In addition, the connection console 12 has at least one, preferably several, projections 16 . The projections 16 are arranged around the through hole 14 . The geometric arrangement of through-holes 14 and projections 16 to each other is in particular geometrically congruent to the geometric arrangement of the first through-opening 8 to the second through-openings 10. The connection console 12 can thus be inserted with its projections 16 into the second through-openings 10. The first passage opening 8 is then aligned with the passage recess 14. On the side of the projections 16, the connection bracket 12 has a contact surface 18.

Fig. 3b zeigt eine Draufsicht auf die Kontaktfläche 18. Zu erkennen ist, dass die Vorsprünge 16 hohlzylindrisch geformt sind. Die Vorsprünge 16 werden insbesondere mittels Stanzen, Biegen oder dergleichen einstückig aus der Anschlusskonsole 12 gebildet. Die Anschlusskonsole 12 ist insbesondere aus Kupfer oder einer Kupferlegierung, wohingegen der Flachleiter 2 insbesondere aus Aluminium oder einer Aluminiumlegierung ist. Geeignete metallische Beschichtungen, insbesondere Verzinnen, Vernickeln oder dergleichen, ist sowohl am Flachleiter 2 im Verbindungsbereich 6 als auch an der Anschlusskonsole 12 an der Kontaktfläche 18 alternativ oder kumulativ möglich. Figure 3b shows a plan view of the contact surface 18. It can be seen that the projections 16 are hollow-cylindrical in shape. The projections 16 are formed in one piece from the connection bracket 12 in particular by means of stamping, bending or the like. The connection console 12 is in particular made of copper or a copper alloy, whereas the flat conductor 2 is in particular made of aluminum or an aluminum alloy. Suitable metallic coatings, in particular tinning, nickel-plating or the like, are alternatively or cumulatively possible both on the flat conductor 2 in the connection area 6 and on the connection bracket 12 on the contact surface 18 .

Zur Verbindung der Anschlusskonsole 12 an den Flachleiter 2 wird diese mit ihren Vorsprüngen 16 in die zweiten Durchgangsöffnungen 10 eingesetzt.In order to connect the connection console 12 to the flat conductor 2, it is inserted with its projections 16 into the second passage openings 10.

Eine Draufsicht auf die Oberfläche 2a des Flachleiters 2 ist in der Fig. 4 gezeigt. Zu erkennen ist, dass die Vorsprünge 16 in den zweiten Durchgangsöffnungen 10 eingesetzt sind.A plan view of the surface 2a of the flat conductor 2 is in FIG 4 shown. It can be seen that the projections 16 are inserted in the second passage openings 10 .

Ein Querschnitt in Längsrichtung zum Flachleiter 2 wie er in der Fig. 4 gezeigt ist, ist in der Fig. 5 zu erkennen. Zu erkennen ist, dass die Anschlusskonsole 12 mit ihrer Kontaktfläche 18 an dem Flachleiter 2 anliegt. Die Vorsprünge 16 sind in den zweiten Durchgangsöffnungen 10 angeordnet. Die Kontaktfläche 18 ist stoffschlüssig mit der Oberfläche 2b des Flachleiters 2 gefügt. Dies kann beispielsweise mittels Ultraschallschweißen, Widerstandsschweißen oder dergleichen erfolgen.A cross section in the longitudinal direction of the flat conductor 2 as shown in FIG 4 shown is in the figure 5 to recognize. It can be seen that the connection bracket 12 is in contact with the flat conductor 2 with its contact surface 18 . The projections 16 are arranged in the second through openings 10 . The contact surface 18 is integrally joined to the surface 2b of the flat conductor 2. This can be done, for example, by means of ultrasonic welding, resistance welding or the like.

Zu erkennen ist, dass die Vorsprünge 16 bündig mit der Oberfläche 2a des Flachleiters 2 abschließen.It can be seen that the projections 16 end flush with the surface 2a of the flat conductor 2 .

Nachdem der Flachleiter 2 mit der Anschlusskonsole 12 gefügt wurde, wird eine Unterlegscheibe 20 oder ein anderes Flachteil auf den Flachleiter 2 und die Vorsprünge 16 aufgelegt. Anschließend wird ein Bolzen, bzw. ein Schraubbolzen, mit einem Bolzenkopf 22a und einem Bolzenstift 22b in ein Bauteil 24 eingeschraubt. Dabei wird der Bolzenkopf 22a auf die Unterlegscheibe 20 gedrückt, die ihrerseits gegen die Stirnflächen der Vorsprünge 16 gedrückt wird. Die Vorsprünge 16 nehmen die senkrechte Anpresskraft auf, so dass die Unterlegscheibe 20 zwischen dem Bolzenkopf 22a und den Vorsprüngen 16 sowie dem Flachleiter 2 eingeklemmt ist.After the flat conductor 2 has been joined to the connection bracket 12 , a washer 20 or another flat part is placed on the flat conductor 2 and the projections 16 . A bolt or a screw bolt is then screwed into a component 24 with a bolt head 22a and a bolt pin 22b. In the process, the bolt head 22a is pressed onto the washer 20, which in turn is pressed against the end faces of the projections 16. The projections 16 absorb the vertical contact pressure, so that the washer 20 is clamped between the bolt head 22a and the projections 16 and the flat conductor 2 .

Durch die Aufnahme der Anpresskräfte durch die Vorsprünge 16 wird eine langzeitstabile Verbindung zwischen dem Flachleiter 2 und dem Bauteil 24 ermöglicht.By absorbing the pressing forces through the projections 16, a long-term stable connection between the flat conductor 2 and the component 24 is made possible.

BezugszeichenlisteReference List

22
Flachleiterflat conductor
44
Isolationisolation
66
Verbindungsbereichconnection area
88th
erste Durchgangsöffnungfirst passage opening
1010
zweite Durchgangsöffnungsecond passage opening
1212
Anschlusskonsoleconnection console
1414
Durchgangsausnehmungthrough hole
1616
Vorsprunghead Start
1818
Kontaktflächecontact surface
2020
Unterlegscheibewasher
2222
Schraubescrew
2424
Bauteilcomponent

Claims (14)

  1. Connection arrangement with
    - a metallic terminal (12) and
    - a metallic flat conductor (2) having
    - an at least quadrangular cross-sectional profile and at least two opposing surfaces running, at least in one connection region, parallel to one another in the longitudinal direction,
    - a first through-opening (8) between the surfaces in the connection region, the first through-opening (8) being formed to receive a bolt,
    - at least one second through-opening (10) between the surfaces in the connection region, the second through-opening (10) being formed to receive the metallic terminal (12), wherein
    - the terminal (12) is formed as a flat part and lies flat with a contact surface (18) against one of the surfaces of the flat conductor (2) in the connection region, wherein
    - the terminal (12) has a first through-recess (14), which is arranged in alignment with the first through-opening (8),
    - the terminal (12) has at least one projection (16) projecting from the contact surface (18) of the terminal (16), and
    - the projection (16) is arranged in the second through-opening (10), characterized in that
    - the at least one projection (16), starting from the contact surface (18), has a longitudinal extent which is equal to the distance between the surfaces of the flat conductor (2) in the connection region,
    - the terminal (12) is materially bonded to the flat conductor (2) with at least the contact surface (18).
  2. Connection arrangement according to claim 1,
    characterized in that
    - the at least one projection (16) projects substantially vertically from the contact surface.
  3. Connection arrangement according to claim 1 or 2,
    characterized in that
    - the at least one projection (16) is essentially cylindrical or hollow cylindrical.
  4. Connection arrangement according to one of the preceding claims,
    characterized in that
    - the at least one projection (16) bears with its outer lateral surface at least partially or completely against an inner lateral surface of the second through-opening (10), in particular in that the projection (16) and the second through-opening (10) have a transition fit or an interference fit.
  5. Connection arrangement according to one of the preceding claims,
    characterized in that
    - the at least one projection (16) is integral with the flat part (2) and is formed from the flat part (2).
  6. Connection arrangement according to any one of the preceding claims,
    characterized in that
    - an end face of the at least one projection (16) is flush with the surface.
  7. Connection arrangement according to any one of the preceding claims,
    characterized in that
    - the number of said second through-openings (10) and said projections (16) is the same.
  8. Connection arrangement according to claim 7,
    characterized in that
    - a geometrical arrangement of the projections (16) around the through recesses (14) is congruent with a geometrical arrangement of the second through-openings (10) around the first through-opening (8).
  9. Connection arrangement according to any one of the preceding claims,
    characterized in that
    - at least two, preferably at least three second through-openings (10) are arranged at angular distances from each other around the first through-opening (8).
  10. Connection arrangement according to any one of the preceding claims,
    characterized in that
    - a bolt is provided and
    - the bolt is arranged within the first through-opening,
    - a second flat part is arranged on the surface of the flat conductor (2) opposite the terminal (12),
    - the bolt has a flange-like bolt head and a bolt pin extending from the bolt head
    - the second flat member is formed to receive the bolt pin,
    - the bolt pin is guided through the second flat part, the first through-opening (8) and the first through-recess (14) and is connected to a component in such a way that the second flat part is held clamped between the bolt head and the projection.
  11. Connection arrangement according claim 10,
    characterized in that
    - the bolt is a screw bolt.
  12. Connection arrangement according to any one of the preceding claims 10 or 11,
    characterized in that
    - the bolt presses the second flat part against the at least one projection (16) in the connected state.
  13. Connection arrangement according to one of the preceding claims,
    characterized in that
    - the first through-opening (8) and/or the first through recess (14) are formed as a round hole or as an elongated hole.
  14. Method for connecting a component to a connection arrangement according to any one of the preceding claims, comprising the steps,
    - arranging the contact surface (18) of the terminal (12) on the flat conductor (2), wherein the at least one projection (16) is arranged in the at least one second through-opening (10) so that the first through-opening (8) and the first through-recess (14) are aligned with each other, and wherein the at least one projection (16), starting from the contact surface (18), has a longitudinal extent which is equal to the distance between the surfaces of the flat conductor (2) in the connection region,
    - materially bonding the contact surface (18) of the terminal (12) to the flat conductor (2),
    - placing a second flat member having a hole at the through-opening (10) on the surface of the flat conductor (2) opposite to the terminal (12),
    - inserting the bolt into the hole, the first through-opening (10), and the through-recess (14) to connect the bolt to the component so that the second flat member is clamped between the bolt and the projection.
EP21712072.4A 2020-03-30 2021-03-10 Connecting arrangement and method for connecting a connecting arrangement to a component Active EP4094326B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020108669.5A DE102020108669B3 (en) 2020-03-30 2020-03-30 Connection arrangement and method for connecting a connection arrangement to a component
PCT/EP2021/056021 WO2021197778A1 (en) 2020-03-30 2021-03-10 Connecting arrangement and method for connecting a connecting arrangement to a component

Publications (2)

Publication Number Publication Date
EP4094326A1 EP4094326A1 (en) 2022-11-30
EP4094326B1 true EP4094326B1 (en) 2023-07-26

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Application Number Title Priority Date Filing Date
EP21712072.4A Active EP4094326B1 (en) 2020-03-30 2021-03-10 Connecting arrangement and method for connecting a connecting arrangement to a component

Country Status (7)

Country Link
US (1) US11799214B2 (en)
EP (1) EP4094326B1 (en)
CN (1) CN115398750A (en)
DE (1) DE102020108669B3 (en)
ES (1) ES2954564T3 (en)
MX (1) MX2022011232A (en)
WO (1) WO2021197778A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021213562A1 (en) * 2021-11-30 2023-06-01 Leoni Bordnetz-Systeme Gmbh Electrical contact arrangement and prefabricated assembly

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ES2954564T3 (en) 2023-11-23
MX2022011232A (en) 2022-10-07
WO2021197778A1 (en) 2021-10-07
CN115398750A (en) 2022-11-25
EP4094326A1 (en) 2022-11-30
DE102020108669B3 (en) 2021-04-29
US20230129043A1 (en) 2023-04-27
US11799214B2 (en) 2023-10-24

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