CN111699594B - Method for connecting at least one electrical contact element to a flat conductor of a vehicle electrical system of a motor vehicle - Google Patents

Method for connecting at least one electrical contact element to a flat conductor of a vehicle electrical system of a motor vehicle Download PDF

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Publication number
CN111699594B
CN111699594B CN201880089017.5A CN201880089017A CN111699594B CN 111699594 B CN111699594 B CN 111699594B CN 201880089017 A CN201880089017 A CN 201880089017A CN 111699594 B CN111699594 B CN 111699594B
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China
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contact element
electrical contact
flat conductor
stainless steel
friction welding
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CN111699594A (en
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沃尔夫冈·维默尔
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Lisa Draexlmaier GmbH
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Lisa Draexlmaier GmbH
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02Apparatus 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/142Their counterparts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/59Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/58Electrically-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
    • H01R4/62Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The invention relates to a method for connecting at least one electrical contact element (3) to a flat conductor (1) of a vehicle electrical system of a motor vehicle, comprising the following steps: providing at least one electrical contact element (3) which has a contact region (6) for contacting another contact element and which is made at least of a stainless steel plate (S) with a curvature (7) which protrudes over the remaining part of the stainless steel plate (S); -arranging the arching (7) of the electrical contact element (3) on the flat conductor (1); a friction welding process is carried out in that the curvature (7) of the electrical contact element (3) arranged on the flat conductor (1) is moved relative to the flat conductor (1) by means of a friction welding tool, whereby a welded connection is formed between the flat conductor (1) and the electrical contact element (3).

Description

Method for connecting at least one electrical contact element to a flat conductor of a vehicle electrical system of a motor vehicle
Technical Field
The invention relates to a method for connecting at least one electrical contact element to a flat conductor of an electrical system of a motor vehicle.
Background
By using so-called flat conductors, preferably made of aluminum, a significant reduction in the installation space and in the weight of the conductors of the vehicle electrical system can be achieved. Such flat conductors serve as power distributors or busbars and are laid, for example, from the rear region to the engine compartment along the floor assembly contour. It is often necessary to electrically contact different conductors on such flat conductors. For this purpose, stainless steel screws, for example, are welded to the flat conductor. The cable lug can then be slipped onto a stainless steel bolt, for example, and tightened thereon. For example, the structural height produced by stainless steel bolts can be adversely affected. In addition, only a predetermined output direction can be generated in this way.
Disclosure of Invention
The object of the invention is to provide a solution by means of which electrical contact can be established on a flat conductor in a particularly simple and compact manner.
This object is achieved by a method for connecting at least one electrical contact element to a flat conductor of an electrical system of a motor vehicle, having the features of claim 1. Advantageous designs and advantageous, but not insignificant, refinements of the invention are given in the dependent claims.
In the method according to the invention for connecting at least one electrical contact element to a flat conductor of an electrical system of a motor vehicle, at least one electrical contact element is provided. The electrical contact element comprises a contact area for contacting another contact element and is made of at least a stainless steel plate with a camber. Wherein the camber protrudes from the rest of the stainless steel plate. The curvature of the electrical contact element is arranged on the flat conductor. A friction welding process is then carried out in that the flat conductor and the arching of the electrical contact element arranged on the flat conductor are moved relative to one another by means of a friction welding tool, so that a welded connection is formed between the flat conductor and the contact element.
The flat conductor is preferably used as a power distributor or a bus bar, and is preferably made of aluminum. The friction welding process can be carried out, for example, by means of ultrasonic friction welding, in that, in the region of the curvature of the electrical contact element, a Sonotrode (Sonotrode), which is part of a friction welding tool, is pressed against the electrical contact element with a certain pressure or with a certain force. In this case, a high-frequency oscillating movement is applied to the electrical contact elements by means of the sonotrode, so that the relative movement between the curvature of the stainless steel plate and the flat conductor is obtained. Due to the friction generated in this case, the camber and the flat conductor become hot and plastic, and a welded connection results. However, instead of ultrasonic friction welding, other friction welding methods are also conceivable.
The curvature in the stainless steel plate can be formed, for example, by producing a groove, which then forms the form of a curvature on the rear side of the stainless steel plate. It is important here that the curvature projects beyond the rest of the stainless steel plate, so that during the friction welding process also only the curvature of the stainless steel plate comes into contact with the flat conductor. The distance of the stainless steel plate from the flat conductor, which is caused by the curvature, makes it possible to carry out the soldering process particularly easily and with a reliable process.
With the method according to the invention, it is possible to connect at least one electrical contact element to a flat conductor, wherein the connection thus produced has a low installation space height. Furthermore, the method according to the invention can be carried out particularly cost-effectively, since it is a very simple production process. In addition, in the region where the welded connection is formed, a seal against the electrolyte is not absolutely necessary. This is because, for electrochemical voltage systems, it is advantageous or not critical for the stainless steel plates to be matched to the material of the flat conductor, which is preferably made of aluminum. Furthermore, stainless steel plates have good mechanical properties, for example compared to copper, which undergoes a sedimentation process
Figure BDA0002625820480000021
And undesired flow processes. In contrast, the stainless steel plate has no disadvantageous settling properties and flowability, so that a permanently stable soldered connection between the flat conductor and the at least one electrical contact element can be ensured.
An advantageous embodiment of the invention provides that the curvature is formed with an at least substantially circular base surface which is moved rotationally relative to the flat conductor by means of a friction welding tool in order to form the welded connection. In this case, it is preferable to perform torsional friction welding. The curvature can, for example, perform a rotational movement with minimal vibrations. It is also entirely possible for the curvature to perform a rotational movement with a greater amplitude. By means of the rotational relative movement with the flat conductor, a particularly reliable soldered connection can be produced.
An alternative advantageous embodiment of the invention provides that the curvature is formed with an elongated base surface which is moved in a translatory relative movement by means of a friction welding tool with the flat conductor in order to form the welded connection. The long base surface is preferably produced here in such a way that: such that it extends at least substantially perpendicular to the longitudinal dimension of the electrical contact element. The entire electrical contact element can therefore be designed particularly compact.
According to a further advantageous embodiment of the invention, it is provided that at least one force application region is formed on the electrical contact element for positive insertion of a friction welding tool. In this case, for example, at least one slit-shaped through-hole can be formed in the electrical contact element, which belongs to the force application region. In the case of a dome with a circular base, it can be provided, for example, that the dome is formed by a conical recess, wherein, in this case, for example, a plurality of such slit-shaped through-openings can be formed distributed over the circumference. This results in a particularly advantageous force application region into which a friction welding tool for applying a relative movement can be inserted. Alternatively or additionally, it is also possible to form at least one elevation on the electrical contact element, which elevation belongs to the force application area. For example, a region may be partially punched and then bent to form the ridge. Alternatively or additionally, it is also possible for the electrical contact element to be bent upward, for example in the edge region, in order to thereby provide a particularly good force application region. The force application region ensures that the friction welding tool acts positively on the electrical contact element, so that a reliable relative movement can be applied. A particularly good soldered connection can thus be formed.
Another advantageous embodiment of the invention provides that the electrical contact element is made exclusively of stainless steel. Since the electrical contact element is formed in this case in one piece or in one piece, it can be produced in large numbers particularly cost-effectively.
An alternative advantageous embodiment of the invention provides that the electrical contact element is produced in the form of a composite plate consisting of a stainless steel plate and a copper plate which are bonded to one another in a material-bonding or form-fitting manner. An advantage of this embodiment is that the electrical contact element has particularly good mechanical properties on the one hand due to the stainless steel plate and particularly good electrical conductivity on the other hand due to the copper plate. The stainless steel plate and the copper plate may be bonded to each other by riveting, welding and/or stamping, for example. The copper plate is preferably thicker than the stainless steel plate. More generally, the layer thickness of the stainless steel plate can be kept thin or small compared to the copper plate depending on the variant, since the electrical conductivity is small. Furthermore, the stainless steel plate serves as an intermediate layer between the copper plate and the flat conductor, so that electrochemical corrosion can be prevented. In this embodiment, for example, the galvanic coating can be dispensed with.
In a further advantageous embodiment of the invention, it is provided that the stainless steel plate is connected to the copper plate outside the curvature in the overlapping region. For example, it is possible to first subject the curvature of the stainless steel plate to the friction welding process in the manner already described, and then to connect the copper plate to the stainless steel plate in the overlap region. It is also possible, however, to first connect the stainless steel plate to the copper plate and subsequently to carry out a friction welding process.
Finally, a further advantageous embodiment of the invention provides that the stainless steel plates and the copper plates are produced in superimposed relationship and are placed one on top of the other and connected to one another before the friction welding process. This can be done, for example, by electroplating. In this case, the contact element obtains particularly good electrical conductivity properties, since the current can flow through the copper plate along the entire length of the electrical contact element, and the current only has to flow through the stainless steel plate via a short path in the region of the formed solder connection, but then necessarily with a large cross section, in order to reach the flat conductor.
Further advantages, features and details of the invention can be taken from the following description of preferred embodiments and with the aid of the drawings. The features and feature combinations mentioned earlier in the description and those mentioned later in the description of the figures and/or shown in the figures alone can be used not only in the respectively given combination but also in other combinations or alone without departing from the scope of the invention.
Drawings
Fig. 1 is a perspective view of a flat conductor of an on-board electrical system of a motor vehicle, wherein a first embodiment of an electrical contact element is connected to the flat conductor by friction welding and a bolt has been passed through an opening of the electrical contact element;
fig. 2 is a perspective view of a first embodiment of an electrical contact element made only of a stainless steel plate having a camber which projects downwards the remaining stainless steel plate as shown;
FIG. 3 is a perspective view of a second embodiment of an electrical contact element having a plurality of slits that serve as force application points for a friction welding tool;
fig. 4 is a perspective view of a third embodiment of an electrical contact element, wherein the electrical contact element has elevations in the edge regions of the side sections, which elevations also serve as force application regions for a friction welding tool;
fig. 5 is a perspective view of a fourth embodiment of an electrical contact element having a bump in an intermediate region that serves as a point of application of a friction welding tool;
fig. 6 is a perspective view of a fifth embodiment of an electrical contact element, which is made in the form of a composite plate composed of a stainless steel plate and a copper plate;
fig. 7 is a perspective view of a sixth embodiment of an electrical contact element, which is likewise made in the form of a composite plate;
fig. 8 is a perspective view of a seventh embodiment of an electrical contact element having a long bight for soldering to a flat conductor plate; and
fig. 9 is a perspective view showing a seventh embodiment of an electrical contact element prior to soldering with a flat conductor.
In these figures, identical or functionally identical components are provided with the same reference symbols.
Detailed Description
Fig. 1 shows a perspective view of a flat conductor 1 for a vehicle electrical system of a motor vehicle. The insulation 2 surrounding the flat conductor 1 is removed in one area. In this region, the electrical contact element 3 is connected to the partially deinsulated flat conductor 1 by means of a friction welding process. The screw 5 passes through a through-hole 4 (see fig. 2) of the electrical contact element 3, which is not shown in detail here.
For example, a cable lug can be slipped onto the screw 5, which is then pressed onto the contact region 6 by screwing. The cable lug, prior to the tightening, for example, already receives a cable or a conductor, which is then connected to the flat conductor 1 in an electrically conductive manner via the electrical contact element 3. Contrary to the illustration in the present figure, it is possible to connect a plurality of such electrical contact elements 3 to the flat conductors 1 at different points by friction welding.
Fig. 2 shows the same embodiment of the electrical contact element 3 as in fig. 1 in a perspective view. This embodiment of the electrical contact element 3 is only and completely made of stainless steel plates S. The stainless steel plate S has a curvature 7, which according to the figure is formed on the bottom surface of the electrical contact element 3. According to the figure, the curvature 7 protrudes downwards beyond the rest of the electrical contact element 3 made of stainless steel sheet S.
As shown, the camber 7 is formed in the form of a circular bottom surface. On the opposite side of the curvature 7, the electrical contact element 3 has a corresponding conical recess 8 with a rounded bottom surface. In order to produce a soldered connection between the electrical contact element 3 and the flat conductor 1, the electrical contact element 3 is arranged with its curvature 7 on the flat conductor 1. Subsequently, a friction welding treatment is carried out in the following manner: the curvature 7 of the electrical contact element 3, which is arranged on the flat conductor 1, is moved relative to the flat conductor 1 by means of a friction welding tool, so that a welded connection is formed between the flat conductor 1 and the contact element 3.
In the embodiment of the electrical contact element 3 shown here, the arcuate section 7 is moved in a rotationally relative manner with respect to the flat conductor 1 by means of a friction welding tool in order to form a welded connection. For this purpose, for example, an ultrasonic vibration unit can be applied to the electrical contact element 3 and the arcuate portion 7 can be subjected to rotational ultrasonic vibration, thereby performing a friction welding process. Due to the friction generated in this case, heating and plasticization occur in the region of the curvature 7 of the electrical contact element 3 and at the corresponding location of the flat conductor 1.
Fig. 3 shows a second embodiment of an electrical contact element 3 in a perspective view. The embodiment shown here differs from the embodiment of the electrical contact element 3 shown in fig. 2 only in that a plurality of slit-shaped through-openings 9 are formed in the region of the recess 8, which through-openings serve as force application regions for a correspondingly configured friction welding tool. The friction welding tool can be inserted into these slit-shaped through-holes 9 in a form-fitting manner, whereby the relative movement with respect to the flat conductors 1 is caused in a reliable manner during the friction welding process.
Fig. 4 shows a third embodiment of an electrical contact element 3 in a perspective view. The embodiment shown here differs from the embodiment shown in fig. 3 only in that a corresponding elevation 10 is formed or modified on the electrical contact element 3 as a force application region. On each longitudinal edge of the electrical contact element 3, a ridge 10 is formed, so that the friction welding tool can be applied to these ridges 10 in order to bring the electrical contact element 3 into the described relative movement during the friction welding process. The bulge 10 is here directed in the direction diametrically opposite to the curvature 7. It is thereby ensured that the friction welding tool applied on the raised part 10 does not contact the flat conductor 1 during the friction welding process.
A fourth embodiment of an electrical contact element 3 is shown in a perspective view in fig. 5, wherein this embodiment differs from the embodiment shown in fig. 4 in that a bulge 11 is formed as a force application area in the middle region of the electrical contact element 3. The raised portion 11 may be formed, for example, by first punching, and then bending a part of the punched area upward. The bulges 11 are also oriented in the direction diametrically opposite to the bulges 7, which are not visible here, so that the friction welding tool can be applied to the electrical contact element 3 without any problem, without contacting the flat conductor 1 during the friction welding process.
Fig. 6 shows a fifth embodiment of an electrical contact element 3 in a perspective view. The electrical contact element 3 is formed here in the form of a composite plate consisting of a stainless steel plate S and a copper plate K which are connected to one another in a material-bonded or form-fitting manner. The stainless steel sheet S is connected to the copper sheet K outside the arching 7 in the overlap region 12. In this overlap region 12, the stainless steel plate S and the copper plate K are connected to each other, for example, by riveting, welding, or punching. Here, the joining of the two panels S, K may be performed before the friction welding process or after the friction welding process.
Fig. 7 shows a sixth embodiment of an electrical contact element 3 in a perspective view. The embodiment of the electrical contact element 3 shown here is also a composite plate made of a stainless steel plate S and a copper plate K. In this case, the copper plate K is arranged on the stainless steel plate S on the side facing away from the arching 7. The copper plate K extends here to a region very close to the camber 7, which is not visible here, as a result of which particularly good electrical conductivity can be achieved.
Both the copper plate K and the stainless steel plate S have a through-opening 4 in the region of the through-opening, the copper plate K being pressed onto the stainless steel plate S in the case of screwing with a cable lug as mentioned above in connection with fig. 1. Electrical contact is made by the compressive force. That is, in this region, it is not absolutely necessary for the stainless steel plate S and the copper plate K to be connected in a form-fitting or force-fitting manner, so that a flat contact surface is maintained. However, the stainless steel plates S and the copper plates K can also be connected to one another in a form-fitting or force-fitting manner in the region around the through-opening 4, in order to increase the rigidity of the entire contact element 3 if required.
Fig. 8 shows an eighth embodiment of an electrical contact element 3 in a perspective view, wherein this embodiment is also formed in the form of a composite plate made of a copper plate K and a stainless steel plate S, which is not shown in detail here. But the contact element 3 is made of stainless steel only. The embodiment of the electrical contact element 3 shown here differs from all the embodiments described above in that the curvature 7 (see fig. 9 for this purpose), which is not visible in the present perspective view, is formed with an elongated shape or base. To form the soldered connection, the arching 7 is subjected to a translational relative movement with respect to the flat conductor 1 by means of a friction-welding tool. In this case, the curvature 7 extends across the main extension direction of the electrical contact element 3. Since the relative movement is applied transversely to the main extension direction of the electrical contact element 3, the electrical contact element 3 can be designed to be relatively short.
The stainless steel plate S and the copper plate K are made into a double-layered composite material by an electroplating method, thereby being bonded to each other before the friction welding process. The copper plate K has an at least substantially similar curvature as the curvature 7 of the stainless steel plate S.
Fig. 9 shows only the same embodiment of the electrical contact element 3 as in fig. 8 from another perspective. In the present illustration, it can be clearly seen that the stainless steel plate S is significantly thinner than the copper plate K. The thickness of the stainless steel plate S and the copper plate K can be selected according to the variant. In particular, the thickness of the stainless steel plate S is selected to be smaller than that of the copper plate K due to its small electrical conductivity.
In the embodiment of the electrical contact element 3 shown in fig. 7 to 9, the stainless steel plates S each serve as an intermediate layer in order to prevent galvanic corrosion between the copper plate K and the flat conductor 1 made of aluminum. In particular in the embodiment of the electrical contact element 3 with a copper plate K, a particularly good electrical conductivity of the electrical contact element 3 is obtained.
List of reference numerals
1 Flat conductor
2 insulating material
3 electric contact element
4 through hole
5 bolt
6 contact area
7 arch part
8 concave part
9 slit-shaped through hole
10 raised part
11 raised part
12 connection region
K copper plate
S stainless steel plate

Claims (10)

1. Method for connecting at least one electrical contact element (3) to a flat conductor (1) of an electrical system of a motor vehicle, comprising the following steps:
-providing at least one electrical contact element (3), which electrical contact element (3) is provided with a through hole (4) and through which through hole (4) a bolt (5) is passed, which electrical contact element has a contact area (6) for contacting another contact element and is made of at least a stainless steel plate (S) with a curvature (7) protruding over the rest of the stainless steel plate (S);
-arranging the arch (7) of the electrical contact element (3) on the flat conductor (1);
-performing a friction welding process by: the curvature (7) of the electrical contact element (3) arranged on the flat conductor (1) is moved relative to the flat conductor (1) by means of a friction welding tool, as a result of which a welded connection is formed between the flat conductor (1) and the electrical contact element (3), wherein only the curvature (7) of the stainless steel plate (S) is in contact with the flat conductor (1) during the friction welding process.
2. The method of claim 1,
the arch (7) is formed with an at least substantially circular base surface which is moved in a rotationally relative manner by means of the friction welding tool with the flat conductor (1) in order to form the welded connection.
3. The method of claim 1,
the arch (7) is formed with an elongate base surface which is moved in a translatory manner relative to the flat conductor (1) by means of the friction welding tool in order to form the welded connection.
4. The method of any of the preceding claims,
at least one force application region is formed on the electrical contact element (3) for the positive insertion of the friction welding tool.
5. The method of claim 4,
at least one slit-shaped through-hole (9) belonging to the force application area is formed in the electrical contact element (3).
6. The method of claim 4 or 5,
at least one elevation (10, 11) belonging to the force application region is formed on the electrical contact element (3).
7. The method of any of the preceding claims,
the electrical contact element (3) is made of the stainless steel plate (S) only.
8. The method according to any one of claims 1 to 6,
the electrical contact element (3) is produced in the form of a composite plate consisting of the stainless steel plate (S) and the copper plate (K) which are connected to one another in a material-bonding or form-fitting manner.
9. The method of claim 8,
so that the stainless steel plate (S) is connected to the copper plate (K) outside the arch (7) in a lap joint region (12).
10. The method of claim 8,
the stainless steel plate (S) and the copper plate (K) are manufactured in superposition and are stacked one on top of the other and connected to each other before the friction welding process.
CN201880089017.5A 2018-02-09 2018-02-09 Method for connecting at least one electrical contact element to a flat conductor of a vehicle electrical system of a motor vehicle Active CN111699594B (en)

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Publication number Priority date Publication date Assignee Title
DE102019126012A1 (en) * 2019-09-26 2021-04-01 Te Connectivity Germany Gmbh Welding process
DE102020112051B3 (en) * 2020-05-05 2021-09-30 Auto-Kabel Management Gmbh Connection arrangement and method for producing a connection arrangement

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CN101678499A (en) * 2007-05-10 2010-03-24 伊卓特有限两合公司 Method for producing a friction welding connection between multiple planar components located one atop the other with the deformation of a collar after the friction welding
CN204487001U (en) * 2014-01-31 2015-07-22 福特环球技术公司 The grounding assembly of friction welding
WO2017167463A1 (en) * 2016-03-30 2017-10-05 Auto-Kabel Management Gmbh Electrical conductors having a friction welding sleeve

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Publication number Priority date Publication date Assignee Title
DE102012214158A1 (en) * 2012-08-09 2014-02-13 Lisa Dräxlmaier GmbH Method of contacting and joining single or multilayer flat conductor with conductors in automotive industry, involves performing physical connection of conductor to conductive layer through contact element in recess of conductive layer
DE102015217383A1 (en) * 2015-09-11 2017-03-16 Bayerische Motoren Werke Aktiengesellschaft Ground connection for an aluminum component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101678499A (en) * 2007-05-10 2010-03-24 伊卓特有限两合公司 Method for producing a friction welding connection between multiple planar components located one atop the other with the deformation of a collar after the friction welding
CN204487001U (en) * 2014-01-31 2015-07-22 福特环球技术公司 The grounding assembly of friction welding
WO2017167463A1 (en) * 2016-03-30 2017-10-05 Auto-Kabel Management Gmbh Electrical conductors having a friction welding sleeve

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