EP4018017A1 - Structure de connexion électrique et procédé de production d'une telle structure - Google Patents

Structure de connexion électrique et procédé de production d'une telle structure

Info

Publication number
EP4018017A1
EP4018017A1 EP21702868.7A EP21702868A EP4018017A1 EP 4018017 A1 EP4018017 A1 EP 4018017A1 EP 21702868 A EP21702868 A EP 21702868A EP 4018017 A1 EP4018017 A1 EP 4018017A1
Authority
EP
European Patent Office
Prior art keywords
layers
connection structure
electrical connection
layer
electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21702868.7A
Other languages
German (de)
English (en)
Inventor
Michael Nielsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ennovi Advanced Engineering Solutions Germany GmbH
Original Assignee
Interplex NAS Electronics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interplex NAS Electronics GmbH filed Critical Interplex NAS Electronics GmbH
Publication of EP4018017A1 publication Critical patent/EP4018017A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/017—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of aluminium or an aluminium alloy, another layer being formed of an alloy based on a non ferrous metal other than aluminium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
    • C23C24/085—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
    • C23C24/085—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C23C24/087—Coating with metal alloys or metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C23C24/106—Coating with metal alloys or metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • 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
    • 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

Definitions

  • the invention relates to an electrical connection structure and a method for manufacturing such a structure
  • connection solutions When connecting elements separated from one another between an electrical energy source and an electrical energy sink, various connection solutions are used in the prior art.
  • releasable electrical connections such as plug connections, screw connections, clinch connectors, crimp connectors, to name but a few.
  • battery connections, busbars and power distributors there is always a material mix of components to be connected to one another, and corrosion problems and corresponding consequential problems.
  • connection to aluminum as a line material is inadequately solved in the prior art.
  • the patent DE 10015713 A1 discloses a method in which a solid rivet is inserted into the aluminum sheet. This should create an I-shape that clamps the aluminum sheet. Then the aluminum sheet is to be welded to another sheet steel by means of resistance spot welding via the steel rivet element. This rivet element has two flat surfaces.
  • connection points have, for example, bolts and / or bores in order to connect the connection partners by means of a screw bolt and a nut. This results in further material combinations and various surface sections at the connection points are not covered by the roll cladding.
  • WO 2013083540 A1 a solution for improving said problems for a mechanical connection, namely a screw, is proposed in WO 2013083540 A1.
  • a screw has, on the one hand, sufficient strength and, on the other hand, adequate corrosion resistance.
  • the material of the screw can in particular be resistant to contact corrosion with carbon or carbon-reinforced composite materials. Since carbon is unfavorable to iron due to its electrochemical potential, it is It is particularly important for the permanent use of the screw that this type of corrosion is avoided, regardless of whether the environment is also corrosive or not.
  • the screw can advantageously consist of a highly heat-resistant material in accordance with EN 10269 or similar, in particular of an austenitic material or of a nickel-based alloy.
  • Such material pairings are not suitable for the transmission of electrical power and high currents. Rather, contact corrosion also has the disadvantageous effect that the transition resistance in the area of the contact surfaces of the contact partners changes, in particular increases, and the contact point is then increasingly heated. This sometimes leads to considerable consequential damage, such as a fire.
  • a basic idea of the invention is to design a specific structure in which a connection zone takes place between a first and second inner layer of two connection partners, which were produced by means of cold gas spraying.
  • an electrical connection structure for use as a means of transmitting electrical energy between a first and second electrical component, the connection structure being formed from several layers arranged in series with one another, a first outer layer made of aluminum or an aluminum alloy and a second outer layer preferably made of aluminum or an aluminum alloy and wherein a third and preferably fourth layer, namely one or two inner layers between the outer layers Layers are provided, the inner or inner layers 30 being each produced by cold gas spraying.
  • only one aluminum or an aluminum alloy -Layer can be provided and any combination with e.g. other materials such as Cu-Al.
  • a preferred embodiment of the invention provides that the two inner layers are connected directly to one another in a contacting manner (i.e. without further layers in between).
  • the electrical connection structure is designed as a connection structure that is detachable between at least two of the four layers and that can be separated from a connection position (connected state) to a disconnected position (pre-assembly state or disconnected state) and corresponds to these the contact surfaces are designed so that they form a non-positive and / or positive connection in the non-separated connection position.
  • the two connection partners can therefore be as intended from one another (formed from aluminum or separated, similar to a connector that is connected or can be separated for plugging and unplugging.
  • connection partners can accordingly be brought into contacting system with their anti-corrosion layers produced by means of cold gas spraying in order to then act as an electrical connection, for example between two devices or an electrical energy source and an electrical energy sink.
  • connection structure is designed as a non-detachable, in particular material-locking connection structure in which the two inner corrosion protection layers are held together by atomic or molecular forces.
  • a connecting means runs through all layers (viewed in the direction of energy flow with current flow), in particular a connecting bolt and for this purpose in each layer, in order to establish the non-positive connection an opening is provided through which the connecting bolt penetrates.
  • the structure of the arrangement is designed in such a way that the second inner layer was applied to the first outer layer by means of cold gas spraying, in particular it completely covered up to the edge area and that the third inner layer was applied to the second outer layer, in particular this, by means of cold gas spraying also completely covered to the edge area.
  • connection partners formed in this way can form a completely or at least partially corresponding contact surface for the electrical connection.
  • the areas can preferably be of the same size, but a partial contact system would only be possible from a partial area.
  • the two outer layers in their direction of thickness have a slight has a significantly greater thickness than the inner layers, in particular in a ratio greater than 1:10.
  • the optimal material and thickness pairing is tailored to the respective application. If, in addition, a particularly high mechanical strength is required, the outer layers or structures can be made correspondingly thick and solid. This can in particular also bring advantages with regard to the thermal properties of the electrical connection structure and the desired heat transport when used with high currents.
  • the concept of the invention is particularly suitable for realizing a busbar or a power distributor between at least two lines, each of the two connection partners being connected to an electrical line that leads to an energy source or sink, such as for example to a battery or an electrical consumer.
  • connection structure in addition to the connection structure as such, a further aspect of the present invention also relates to the method for producing such an electrical connection structure with the following steps: a) Providing two outer layers or layer-like structures made of aluminum or an aluminum alloy (e.g. Al / Cu alloy); b) applying a corrosion protection layer by means of cold gas spraying onto the respective surface of the two outer layers or structures; c) Joining the two anti-corrosion layers for production a connection structure by forming a series of layers arranged one behind the other in the connected state.
  • an aluminum alloy e.g. Al / Cu alloy
  • This method is also advantageous if a force-fit connection, form-fit connection and / or material connection is established in step c).
  • FIG. 1 shows a schematic representation of an electrical connection structure in a pre-assembly state (disconnected state);
  • FIG. 2 shows a first exemplary embodiment of an electrical connection structure in a non-positively connected state
  • Fig. 3 shows an alternative embodiment of an electrical connec tion structure in a positively connected state
  • FIG. 4 shows a further alternative embodiment of an electrical connection structure in a materially connected state.
  • FIGS. 1 to 4 the same reference numerals indicating the same structural and / or functional features.
  • Fig. 1 is an exemplary schematic representation of an electrical see connection structure 10 shown in a pre-assembly state (disconnected state).
  • the two connection partners 10a, 10b shown form the connection structure 10 in the connected state.
  • FIGS. 2 to 4 each show a schematic view of an electrical connection structure 10 for use as a means of transferring electrical energy between a first and second electrical component (which is not shown in more detail here).
  • the connecting structure 10 is formed from several layers 20, 30, 40, 50 arranged in series with one another.
  • the layers 20, 30, 40, 50 are briefly explained below.
  • the bottom layer represents a first outer layer 20, while the top layer represents a second outer layer 50.
  • the two outer layers 20, 50 could also be designed as layer-like structures.
  • These layers 20, 50 or structures 20, 50 are formed from aluminum or an aluminum alloy.
  • each of the two layers 20, 50 there is a corrosion protection layer 30, 40 produced by cold gas spraying, which lie against one another in the connected state according to FIGS. 2 to 4 and then form inner layers 30, 40.
  • Fig. 2 shows an embodiment of an electrical connection struc ture 10 produced via a non-positive connection, for which a connecting means 60 runs through all layers 20, 30, 40, 50, in particular a connecting bolt 60, which by means of a nut 61 on the upper and lower outer structure 20, 50 is attached.
  • each layer or structure there is a corresponding opening through which the connecting bolt 60 penetrates.
  • 3 shows an exemplary embodiment of an electrical connection structure 10 produced via a form-fitting connection, for which a structural element 11 and a corresponding structural element 51 are provided on the respective outer structures or layers 20, 50. These interlock positively.
  • FIG. 4 shows an exemplary embodiment of an electrical connection structure 10 produced via a material or material connection, for which purpose the two inner layers 30, 40 were connected to one another by a corresponding material connection method.
  • the implementation of the invention is not restricted to the preferred exemplary embodiments specified above. Rather, a number of variants are conceivable which make use of the solution shown even in the case of fundamentally different designs.
  • the materials mentioned in claim 1 can also include other metallic materials without these being mentioned in all possible combination forms in the description. In particular, copper and copper alloys are also included.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Connection Of Plates (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne une structure de connexion électrique et un procédé de production d'une structure de connexion électrique (10) destinée à être utilisée comme moyen de transmission d'énergie électrique entre un premier élément électrique et un second élément électrique, la structure de connexion (10) étant composée d'un certain nombre de couches (20, 30, 40, 50) disposées en série les unes par rapport aux autres, une première couche extérieure (20) et une deuxième couche extérieure (50) étant respectivement constituées d'aluminium ou d'un alliage d'aluminium, et en outre, une troisième couche (30) et une quatrième couche (40), en particulier deux couches intérieures, étant disposées entre les couches extérieures (20, 50), les couches intérieures (30, 40) étant respectivement produites par projection à froid.
EP21702868.7A 2020-03-26 2021-01-20 Structure de connexion électrique et procédé de production d'une telle structure Pending EP4018017A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020108421 2020-03-26
PCT/EP2021/051193 WO2021190798A1 (fr) 2020-03-26 2021-01-20 Structure de connexion électrique et procédé de production d'une telle structure

Publications (1)

Publication Number Publication Date
EP4018017A1 true EP4018017A1 (fr) 2022-06-29

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DE59408077D1 (de) 1993-06-25 1999-05-12 Zipperling Kessler & Co Verfahren zur herstellung korrosionsgeschützter metallischer werkstoffe
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JP5186528B2 (ja) * 2010-04-23 2013-04-17 日本発條株式会社 導電部材及びその製造方法
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CN114747091A (zh) 2022-07-12
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