• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a connection of an electrical cable (2) having a conductor (7), preferably a stranded conductor (7) made of aluminum or an aluminum alloy and an insulation surrounding this (8), with a copper or a copper alloy contact part (1), the insulation (8) of the cable (2) is removed in an area in front of one end (9) of the cable (2). A connection cap (10) made of aluminum or an aluminum alloy surrounds the stripped part of the cable (2) at least in places and is pressed with the conductor (7) of the cable (2). The connection cap (10) has a sleeve (11) and an end wall (12) and the contact part (1) is welded through the end wall (12) to the conductor (7).
    公开号:AT512881A1
    申请号:T568/2012
    申请日:2012-05-11
    公开日:2013-11-15
    发明作者:Karl Franz Ing Froeschl
    申请人:Gebauer & Griller；
    IPC主号:
    专利说明:

    11/05/2012 17:56
    BEER8PARTNER PATENTA # * ·· ** p. 03/13
    1
    The invention relates to a compound of an electrical cable having a conductor, preferably a stranded conductor made of aluminum or an aluminum alloy and a surrounding insulation, with a copper or a copper alloy contact part, wherein the insulation of the cable in a range before one end of the cable is removed, wherein an aluminum or an aluminum alloy connecting cap is provided which surrounds the stripped portion of the cable at least partially and which is pressed with the conductor of the cable, and wherein the connecting cap has a sleeve and an end wall.
    The invention further relates to a method for producing a connection of an electrical cable having a conductor, preferably a stranded conductor made of aluminum or an aluminum alloy and a surrounding insulation, with a copper or a copper alloy contact part, wherein the Insulation of the cable has been removed in an area in front of one end of the cable and in which an aluminum or an aluminum alloy connecting cap with a sleeve and an end wall is placed on the stripped part of the cable and pressed with the conductor of the cable.
    In the connection of power supply lines, in particular those made of aluminum or aluminum alloys, which are increasingly preferred because of their price and weight, especially in the automotive industry over those made of copper or copper alloys, with contact parts made of copper or copper alloys, should be as resistant as possible, mechanically strong and corrosion - free or . corrosion-resistant compound.
    According to the invention is proposed to solve this problem in a compound of the type mentioned that the contact part through the end wall with the conductor 11/05/2012 17:56
    No .: R397 P.003 / 013 04/13 11/05/2012 17:56 0043-1-526-42-45. BEER & PARTNER PATENTA S., ··. : ........ •! F t 9 · ♦ · · ·: :: ·· ... ..... · 2 is welded.
    According to the invention is proposed to solve this problem in a method of the type mentioned that the contact part is welded through the end wall with the conductor.
    Since the contact part is welded to the cable through the end wall, the welded connection between the cable and the contact part is completely sealed from the environment and thus protected against particularly saline liquids, which corrosion between parts with different electrochemical potential, in the present case the cable made of aluminum or an aluminum alloy and the contact part of copper or a copper alloy, promote.
    The close calibration of the contact part through the bottom of the aluminum can also increases or ensures the lateral tensile strength of the contact part at a high or even level.
    Preferred embodiments of the invention are subject of the dependent claims.
    Further features and advantages of the invention will become apparent from the following description of a preferred embodiment of the invention with reference to the accompanying drawings. It shows:
    1 is an oblique view of a contact part before the connection with the capped cable,
    2 shows an oblique view of the contact part after connection to the cable,
    3 shows a longitudinal section through the contact part in front of the
    Connection with the capped cable,
    Fig. 4 is a longitudinal section through the contact part after the connection with the cable and 11/05/2012 17:57
    No .: R397 P. 004/013
    11/05 / 2Θ12 1 : 5S 0043-1-526-42-45
    BEER & PARTNER PATENTA S. 05/13
    5 shows a longitudinal section through the contact part after
    Connection with the cable in a slightly shifted position.
    The drawings show an embodiment of a contact part 1 according to the invention, which is to be connected to a cable 2. The contact part 1 may e.g. like the contact part described in AT 510 475 A and substantially consists of a first section 4 and a second section 5, which is arranged approximately at right angles to the first section 4. The first section 4 has an opening 6, through which a screw, not shown, can be plugged to connect the contact part according to the invention with another electrical component, for example with a vehicle battery.
    The second section 5 serves to connect the contact part 1 to the cable 2, the electrical conductor 7 is either solid or may have a plurality of electrical wires or strands 7. The electrical conductor 7 is surrounded in a known manner by an insulation 8, which ends at a certain distance from the end 9 of the electrical conductor 7.
    In the area without insulation 8, the end 9 of the electrical conductor 7 is surrounded by a connecting cap 10, which has a sleeve 11 and an end wall 12. The sleeve 11 is in a region 13 which is spaced from the end 9 and the end face of the conductor 7, with this mechanically compressed. Thereby, the under the rear portion 13 lying conductor 7 is pressed together more strongly than the lying under the front portion of the sleeve 11 portion of the conductor 7, whereby the conductor 7 is supported from the rear, while the contact part 1 during welding against the end wall 12 and in another sequence is pressed against the conductor 7 and penetrates into this, as will be explained in more detail below.
    The connection cap 10 and the electrical conductor 7 are 11/05/2012 17:57
    No .: R397 P.005 / 013 11/05/2012 17:56 0043-1-526-42-4
    4 p. 06/13 made of aluminum or an aluminum alloy. The contact part 1 is made of copper or a copper alloy and may optionally be coated with a nickel layer.
    The second section 5 of the contact part 1 has a projection 14 with a contact surface or end face 15 having a three-dimensional shape, which is increased in a central region opposite to an edge region surrounding the central region 9. The end face 15 has in the illustrated embodiment, approximately the shape of a spherical cap with a constant radius of curvature. However, it is within the scope of the invention also possible to use other surfaces in which, for example, the radius of curvature in the central region 9 is greater than in the edge region 10 or vice versa, as would be the case for example with a segment of an ellipsoid of revolution. Also, a substantially conical end face 15 would be conceivable, for example. In any case, it is advantageous if the contact part 1, in particular the central region of the projection 14, has a projecting region, since then, at the first contact with the end wall 12, well-defined conditions exist spatially and with respect to the resistance at the start of the welding process, which results in a reduced scattering of the Results in the series process. The end face 15 is adjoined by a section with a cylindrical outer surface 16 and, in turn, by a flange 17.
    The connection of the contact part 1 according to the invention with the electrical conductor 7 of the cable 2 takes place, for example, with such that firstly the central region 15 is applied to the end wall 12 of the connection cap 10 and an electrical voltage is applied to the contact part 1 and the connection cap 10 in order to weld together the contact part 1 and the conductor 7 with the connection cap 10 by a resistance welding process. At the same time, the contact part 1 and the connection cap 10 are pressed against each other.
    Since the aluminum or aluminum alloy has a lower 11/05/2012 17:58
    No .: R397 P.006 / 013 11/05/2012 17:56 0043-1-526-42-45 ..
    BEER & PARTNER PATENTA P. 07/13 • · * * · * • ·
    5
    Melting point than the copper or copper alloy, the end wall 12 begins to melt in the contact area with the end wall 15 of the contact part 1, the contact part 1 itself but not, so that the projection 14 through the end wall 12 through and subsequently into the conductor 7 melts into it, if these parts are pushed further and further together. The wall thickness of the end wall 12 is preferably slightly smaller than the wall thickness of the sleeve 11 so that it can be easily melted through during the welding process, but the sleeve 11 is sufficiently stable or remains.
    Since the central region protrudes from the edge region of the end face 15, the melt of the conductor 7 begins to flow towards the edge region and fills the free space between the connecting cap 10 and the conductor 7, since the end wall 12 prevents melt flows out to a significant extent to the outside. Since the conductor 7 is preferably a stranded cable, the melt can also flow between the strands and spread there, so that a total of a very large-scale, compact and strong welded joint between the contact part 1 and the conductor 7 and the connecting cap 10 is formed, so that the weld also has only a low electrical resistance and is protected against corrosion.
    Since the contact part 1 also welded to the connection cap 10 and the end wall 12 - preferably the current flow is maintained until the position shown in Fig. 2 or 4 and 5 is reached, in which the contact part 1 with its flange 17 at the connecting cap 10 rests and the connecting cap 10 also welded to the flange 17 -gives in addition also a very strong mechanical connection, in particular a very high lateral tensile strength.
    4, an ideal welded joint between the contact part 1, the conductor 7 and the connecting cap 10 is shown, in which the projection 14 is received exactly centered in the sleeve 11. The diameter of the outer surface 16 of 11/05/2012 17:59
    No.: R397 P.007 / 013 11/05/2812 17:56 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 08/13 «· · * ♦ · · · · · · · * * * * *·······················································
    • · ······· 6
    Projection 14 is preferably slightly smaller than the inner diameter of the sleeve 11, so that the melt can also spread into the gap 18 therebetween, which improves the connection both electrically and mechanically. However, this gap also has the advantage that positioning errors of the contact part 1 with respect to the connection cap 10 at the beginning of the welding process can be tolerated, so do not disturb the welding process, which is particularly important in an automated manufacturing process, because then positioning errors to disturbances in the process or Lead the committee. 11/05/2012 17:59
    No .: R397 P.008 / 013
    权利要求:
    Claims (1)
    [1]
    11/05/2012 17:55 0043-1-526-42-45, BEERRPARTNER PATENTA S. 09/13

    2. An interconnection of an electrical cable (2) comprising a conductor (7), preferably a stranded conductor (7), of aluminum or an aluminum alloy and an insulation (8) surrounding the same, a contact part (1) made of copper or a copper alloy, wherein the insulation (8) of the cable (2) is removed in an area in front of one end (9) of the cable (2), wherein a connecting cap made of aluminum or an aluminum alloy (10) is provided, which surrounds the stripped part of the cable (2) at least partially and which is pressed with the conductor (7) of the cable (2), and wherein the connecting cap (10) has a sleeve (11) and an end wall (10). 12), characterized in that the contact part (1) through the end wall (12) through to the conductor (7) is welded. A compound according to claim 1, characterized in that the end wall (12) has a smaller wall thickness than the sleeve (11). Connection according to claim 1 or 2, characterized in that the contact part (1) has a first section (4) to be connected to another component and a second section (5) having an end face (15) connected to the conductor (7) is welded, wherein the end face (15) has a three-dimensional shape, which is increased in a central region opposite to an edge region surrounding the central region. A compound according to claim 3, characterized in that the contact part (1) in the region of the end face (15) is hollow. A compound according to claim 3 or 4, characterized. 11/05/2012 17:59 No .: R397 P.009 / 013 11/05/2012 17:56 0043-1-526-42-45 ... BEER & PARTNER ΡΑΤΕΝΤΑ «·» »» »» »» »» »» BE BE BE BE BE BE BE BE BE BE BE second section has a to the end face (15) adjoining region having an approximately cylindrical outer surface (16) whose diameter is smaller than the inner diameter of the sleeve (11) in the region of the end wall (12). 6. A compound according to claim 5, characterized in that adjoining the region with the cylindrical outer surface (16) has a flange (17) which bears against the end wall (12) or the end of the sleeve (11) and / or with this / This is at least partially welded. 7. A compound according to any one of claims 1 to 6, characterized in that the sleeve (11) is pressed plastically inwardly only over a part 13) of its length. δ. A compound according to claim 7, characterized in that the plastically inwardly pressed part (13) of the sleeve (11) is spaced from the end wall (12). 9. A method for making a connection of an electrical cable (2) having a conductor (7), preferably a stranded conductor (7), made of aluminum or an aluminum alloy and a surrounding insulation (8), with a copper or a copper alloy existing contact part (1), in which the insulation (8) of the cable (2) has been removed in an area in front of one end (9) of the cable (2) and in which an aluminum or aluminum alloy connecting cap (10) with a sleeve (11) and an end wall (12) placed on the stripped part of the cable (2) and with the conductor (7) of the cable (2) is pressed, characterized in that the contact part (1) through the end wall ( 12) is welded to the conductor (7). 11/05/2012 18:00 No .: R397 P.010 / 013
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    同族专利:
    公开号 | 公开日
    EP2662934A3|2014-05-14|
    EP2662934A2|2013-11-13|
    AT512881B1|2014-03-15|
    EP2662934B1|2018-09-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2806215A|1953-11-04|1957-09-10|Aircraft Marine Prod Inc|Aluminum ferrule-copper tongue terminal and method of making|
    EP2131448A1|2008-06-06|2009-12-09|Schulte & Co. GmbH|Method for connecting an electrically conductive component with a flexible conductive component|
    EP2141771A1|2008-07-03|2010-01-06|Lisa Dräxlmaier GmbH|Contacting of light metal conductors|
    US2815497A|1953-04-23|1957-12-03|Amp Inc|Connector for aluminum wire|
    US3988563A|1972-11-09|1976-10-26|Amp Incorporated|Welding method and means using foil electrode|
    US5427546A|1993-12-16|1995-06-27|Methode Electronics, Inc.|Flexible jumper with snap-in stud|
    AT510475B1|2010-10-13|2013-02-15|Gebauer & Griller|CONNECTING PART FOR AN ELECTRIC LADDER|EP2887459B1|2013-12-17|2017-11-15|Nexans|Method for electrically connecting a conductor on the basis of aluminium with a contact member|
    DE102014112701A1|2014-09-03|2016-03-03|Harting Electric Gmbh & Co. Kg|crimp contact|
    DE102014118505A1|2014-12-12|2016-06-16|Harting Kgaa|Crimp barrel, crimp contact and crimping process|
    EP3379652B1|2017-03-24|2021-04-28|Nexans|Arrangement for contacting an electrical conductor and method therefor|
    DE102018127729A1|2018-11-07|2020-05-07|Auto-Kabel Management Gmbh|Process for producing a connector for electrical systems, connector and connection of a connector with a cable|
    法律状态:
    2020-01-15| MM01| Lapse because of not paying annual fees|Effective date: 20190511 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT5682012A|AT512881B1|2012-05-11|2012-05-11|Connection of an electrical cable to a contact part and method of making this connection|AT5682012A| AT512881B1|2012-05-11|2012-05-11|Connection of an electrical cable to a contact part and method of making this connection|
    EP13450013.1A| EP2662934B1|2012-05-11|2013-04-08|Connection of an electrical cable with a contact member|
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