WO2008145453A1 - Conducteur d'énergie de véhicule à moteur - Google Patents

Conducteur d'énergie de véhicule à moteur Download PDF

Info

Publication number
WO2008145453A1
WO2008145453A1 PCT/EP2008/054599 EP2008054599W WO2008145453A1 WO 2008145453 A1 WO2008145453 A1 WO 2008145453A1 EP 2008054599 W EP2008054599 W EP 2008054599W WO 2008145453 A1 WO2008145453 A1 WO 2008145453A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
sub
motor vehicle
vehicle power
contact point
Prior art date
Application number
PCT/EP2008/054599
Other languages
German (de)
English (en)
Inventor
Adelheid Mertel
Original Assignee
Auto-Kabel Managementgesellschaft Mbh
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 Auto-Kabel Managementgesellschaft Mbh filed Critical Auto-Kabel Managementgesellschaft Mbh
Publication of WO2008145453A1 publication Critical patent/WO2008145453A1/fr

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors

Definitions

  • the application relates to a motor vehicle power conductor, in particular a motor vehicle battery ladder with a first part conductor formed essentially of aluminum. Furthermore, the application relates to a method of such a motor vehicle power conductor.
  • Motor vehicle power conductors in particular motor vehicle battery conductors as well as generator conductors and other conductors, are characterized by large cross sections and high current carrying capabilities.
  • automotive battery leads were preferably made of copper.
  • aluminum automotive power conductors due to cost and weight saving measures, it is increasingly necessary to manufacture aluminum automotive power conductors.
  • the contacting of two sub-conductors of a motor vehicle power ladder is problematic.
  • an aluminum oxide forms, which negatively influences the conductivity.
  • Due to the aluminum oxide layer a mechanical connection between two partial conductors is associated with a high contact resistance, so that mechanical connections are generally not usable. For this reason, it has gone over to producing contact points by means of soldering or welding.
  • these contacting methods are expensive.
  • these since these are cohesive compounds, they can not easily be separated again. Because of these disadvantages, the task arose to provide a motor vehicle power ladder available, in which contact points between Aluminiu ⁇ iteilleitern have a low contact resistance.
  • the first sub-conductor has at least partially in the region of an electrical contact point with a second sub-conductor a metal surface applied by means of cold gas spraying.
  • a powdered spray material can be accelerated by means of an inert gas onto a surface.
  • the acceleration is preferably carried out in a Lavaic nozzle, wherein the powdered spray material is preferably accelerated to supersonic speed.
  • the impact energy of the pulverulent metal particles breaks up the aluminum oxide layer and creates a direct connection between the aluminum of the partial conductor and the metal powder, which is applied by means of cold gas spraying.
  • the kinetic energy released on the surface when the metal particles strike the surface causes the materials to heat up to a limited extent, creating a cohesive connection.
  • the metal surface thus applied is well suited for the contacting of two partial conductors, at least one of which is made of aluminum.
  • the electrical contact point is formed as a solder joint. It is possible that in the region of the contact point, the sub-conductors are soldered together.
  • both the first and the second sub-conductor is equipped with the metal surface applied by means of cold gas spraying.
  • a contact between the sub-conductors along the contact point can be made possible, wherein the contact resistance is dependent on the metal used.
  • the metal surface is formed from a non-ferrous metal, in particular copper, zinc, tin, silver, gold or an alloy thereof.
  • a non-ferrous metal in particular copper, zinc, tin, silver, gold or an alloy thereof.
  • metals which have a low tendency to form oxide layers are well suited to the production of a metal surface.
  • the electrical contact point is formed as connectors. Since a metal surface with a good electrical conductivity is applied along the contact point, it is possible to dispense with a substance-bonding connection. This makes it possible to provide connectors of electric battery ladders made of aluminum, which are simple and inexpensive to manufacture.
  • the first sub-conductor in the region of the mating face of the connector has the metal surface applied by means of cold gas spraying. Particularly in the area of the mating face, which area comes in direct mechanical contact with the second sub-conductor, a metal surface is necessary which exhibits low inclinations to oxidize or has a high conductivity.
  • the first and / or the second part conductor are flat conductors.
  • the second sub-conductor is inserted into the first sub-conductor or vice versa.
  • the second sub-conductor has a blind groove corresponding substantially to the cross-section of the first sub-conductor, and the first sub-conductor has the metal surface applied by means of cold-gas spraying in the region which can be accommodated by the blind groove. It is also possible that in the region of the blind groove, on the inner wall of the first sub-conductor, also a metal layer was applied by means of cold gas spraying. With the presented connector, it is possible to insert the second sub-conductor in the blind groove of the first sub-conductor.
  • At least one spring element is provided in the region of the blind groove, which is deformed by the insertion of the second conductor into the blind groove and against the surface, preferably pressed against the surface of the mating face of the second conductor. This provides a connector with good electrical and mechanical properties.
  • the layer thickness of the metal surface should be thin. It is therefore preferred that the layer thickness is between 2 00 / ⁇ m and 500 / ⁇ m, preferably 350 / ⁇ m.
  • the electrical contact is formed as a screw connection.
  • a connecting bolt is screwed to a flat conductor.
  • the connecting bolt may be shaped such that a part insertable into a hole of a flat conductor has a smaller cross-section than the rest of the bolt.
  • the introduced into the bore part may be provided with a thread through which the bolt can be screwed to the flat part. This can be done by a screw on an internal thread in the bore or by a nut which is screwed onto the underside of the conductor to the thread.
  • the surface which makes contact with the bolt on the upper side of the flat conductor can be referred to as be formed electrical contact point in the sense of the application.
  • a copper stud can be electrically contacted with an aluminum flat conductor in a simple manner.
  • a metal surface along the electrical contact point is achieved that in addition to the good electrical properties, a high mechanical strength is achieved. This prevents the bolt from being pulled into the material of the flat conductor when the nut is tightened.
  • a further subject matter is a method for producing a motor vehicle power conductor with forms of a first partial conductor of aluminum and cold gas spraying of a metal surface in the region of an electrical contact point with a second partial conductor.
  • Fig. 1 is a first contact point at a
  • FIG. 2 shows a second contact point with an overlapping connection between partial conductors
  • Fig. 4 is a plug connection between sub-conductors.
  • Fig. 1 shows a first conductor 2 with an electrical contact point 4 and a second Subconductor 6.
  • the surface of the first subconductor 2 is by means of
  • this copper layer is bonded cohesively to the aluminum of the first partial conductor.
  • a metal surface made of copper can likewise be applied by means of cold gas spraying.
  • the end faces of the sub-conductors 2, 6 can then be easily soldered together. It is also possible that the end faces of the sub-conductors 2, 6 are brought into frictional connection with one another. Due to the coating with a copper surface, a high electrical conductivity is achieved in the region of the transition.
  • FIG. 2 shows a further possibility for electrically connecting a first sub-conductor 2 to a second sub-conductor 6.
  • the sub-conductors 2, 6 overlap in the region of the electrical contact point 4.
  • both the first sub-conductor 2 and the second sub-conductor 6 can be coated by means of a copper surface. This is applied by cold gas spraying.
  • the layer thickness of the surface is preferably 350 / ⁇ m.
  • the sub-conductors 2, 6 can be soldered. Since the electrical contact point 4 is formed of copper, it is not necessary to protect the soldering surface from environmental influences, as there is a copper-copper compound at the transition point and the formation of aluminum oxide in this area is impossible.
  • Fig. 3 shows the second sub-conductor 6 as a connecting bolt, for example for a
  • the bolt 6 has at its end a pin which may be provided with a thread 8.
  • the pin is shaped so that it fits into a bore 10 of the first sub-conductor 2.
  • the bolt 6 is screwed with its thread 8 either in the bore 10 or the thread 8 protrudes from the conductor 2 at the bottom out.
  • the bolt 6 can be screwed with a nut on the sub-conductor 2.
  • the first sub-conductor 2 which is formed from aluminum, has been coated with a copper surface by means of cold gas spraying.
  • the bolt 6 may be formed of copper.
  • the second sub-conductor 6 has a blind groove 12 on its end face.
  • the interior of the blind groove 12 can be coated, for example by means of cold gas spraying, with a copper surface.
  • 12 spring elements 14 are provided within the blind groove. These spring elements 14th are preferably formed on the lower or upper inner wall of the blind groove 12. However, the spring elements may also be provided on the side walls of the blind groove 12.
  • first sub-conductor 2 To the spring elements 14 corresponding electrical contact points 4 are provided on the first sub-conductor 2. These electrical contact points 4 have been coated with a copper surface by means of cold gas spraying. It is also possible, but not shown, that the first sub-conductor 2 has been completely coated with a copper surface in the region which has been inserted into the blind groove.
  • the spring elements 14 are tensioned and press with their spring force on the electrical contact point 4. At least via the spring elements 14 an electrical contact between the second sub-conductor 6 and the first sub-conductor 2 is made possible.
  • the spring elements 14 allow not only the electrical contacting but also a mechanical attachment of the first sub-conductor 2 in the blind groove 12.
  • the proposed coating of the electrical contact point with a metal surface by means of cold gas spraying enables improved electrical contacting between partial conductors made of aluminum of a motor vehicle power conductor.
  • the presented compound is characterized by a low contact resistance, cost-effective production and resistance to environmental influences.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention concerne un conducteur d'énergie de véhicule à moteur, en particulier un conducteur de batterie de véhicule à moteur, comprenant un premier sous-conducteur sensiblement en aluminium. Pour réaliser un contact électrique avec un deuxième sous-conducteur, le premier sous-conducteur présente, au moins partiellement dans la zone d'un emplacement de contact électrique avec un deuxième sous-conducteur, une surface métallique appliquée par projection au gaz froid.
PCT/EP2008/054599 2007-05-30 2008-04-16 Conducteur d'énergie de véhicule à moteur WO2008145453A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007025268.6A DE102007025268B4 (de) 2007-05-30 2007-05-30 Kraftfahrzeugenergieleiter und Verfahren zur Herstellung eines Kraftfahrzeugenergieleiters
DE102007025268.6 2007-05-30

Publications (1)

Publication Number Publication Date
WO2008145453A1 true WO2008145453A1 (fr) 2008-12-04

Family

ID=39521855

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/054599 WO2008145453A1 (fr) 2007-05-30 2008-04-16 Conducteur d'énergie de véhicule à moteur

Country Status (2)

Country Link
DE (1) DE102007025268B4 (fr)
WO (1) WO2008145453A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008389B4 (de) * 2009-02-11 2017-04-13 Auto-Kabel Management Gmbh Kraftfahrzeugenergieleiter mit einem Übergabestützpunkt
DE102009019779A1 (de) * 2009-04-30 2010-11-11 Siemens Aktiengesellschaft Bauteil zur Führung eines elektrischen Stromes wie Stromschiene und Verfahren zur dessen Herstellung
DE102012015350A1 (de) * 2012-08-06 2014-02-06 Auto-Kabel Management Gmbh Kraftfahrzeugenergieleitung mit einem Fremdstartstützpunkt
DE102016102281A1 (de) 2016-02-10 2017-08-10 Auto-Kabel Management Gmbh System zur Herstellung einer elektrischen Verbindung, elektrische Verbindung und Verfahren zu deren Herstellung
US20230133468A1 (en) * 2020-03-26 2023-05-04 Interplex NAS Electronics GmbH Electrical connecting structure and method for producing such a structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2052465A1 (de) * 1970-10-26 1972-05-04 Hermann Gutmann Werke Anschlußleitung, insbesondere Massekabel
DE10222271A1 (de) * 2002-05-18 2003-06-26 Leoni Ag Verfahren zur Erhöhung der Widerstandsfähigkeit einer elektrischen Kontaktverbindung zwischen zwei Kontaktteilen und elektrische Kontaktverbindung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10107231A1 (de) 2001-02-16 2002-08-22 Emhart Inc Befestigung für einen elektrischen Kontakt
US6746285B2 (en) 2001-02-20 2004-06-08 Newfrey Llc Grounding stud
US6685988B2 (en) 2001-10-09 2004-02-03 Delphi Technologies, Inc. Kinetic sprayed electrical contacts on conductive substrates
DE102004030784A1 (de) 2004-06-25 2006-01-19 Leoni Ag Elektrische Kontaktverbindung und Verfahren zum Ausbilden einer solchen Kontaktverbindung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2052465A1 (de) * 1970-10-26 1972-05-04 Hermann Gutmann Werke Anschlußleitung, insbesondere Massekabel
DE10222271A1 (de) * 2002-05-18 2003-06-26 Leoni Ag Verfahren zur Erhöhung der Widerstandsfähigkeit einer elektrischen Kontaktverbindung zwischen zwei Kontaktteilen und elektrische Kontaktverbindung

Also Published As

Publication number Publication date
DE102007025268B4 (de) 2019-02-14
DE102007025268A1 (de) 2008-12-11

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