• 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:
    Cable contact piece system (1) comprising a cable (2) with at least one electrical conductor (3) and a contact piece (5) for electrically connecting the cable (2) to a contact component, wherein the cable (2) in an end region the contact piece (5) is pressed. In order to achieve an electrical connection as far as possible without interference factors, it is inventively provided that the at least one electrical conductor (3) in the end region of the cable (2) has an end face (6) which is connected to a longitudinal axis (7) of the cable (2). is arranged obliquely in the end region, and that the contact piece (5) has at least one contact surface (9) with which the contact piece (5) the end face (6) contacted and with which the contact piece (5) with the end face (6) pressed is, in relation to the longitudinal axis (7) to ensure an axial contact between the contact piece (5) and the at least one electrical conductor (3), wherein the contact surface (9) at least partially disposed obliquely to the longitudinal axis (7).
    公开号:AT516375A4
    申请号:T50884/2014
    申请日:2014-12-04
    公开日:2016-05-15
    发明作者:Karl Ing Fröschl
    申请人:Gebauer & Griller；
    IPC主号:
    专利说明:

    CABLE CONTACT BLADE SYSTEM AND METHOD FOR ELECTRICALLY CONNECTING A CABLE TO A CONTACT PIECE
    FIELD OF THE INVENTION
    The present invention relates to a cable-contact piece system comprising a cable with at least one electrical conductor, preferably at least one wire or at least one strand, and a contact piece for electrically connecting the cable to a contact component, preferably a consumer, the cable in an end region is pressed with the contact piece.
    Furthermore, the present invention relates to methods for electrically connecting a cable comprising at least one electrical conductor, preferably at least one wire or at least one strand, with a contact piece by pressing.
    STATE OF THE ART
    Known methods for connecting an electrical conductor, preferably a strand of a cable, with a contact piece are usually realized in that the contact piece is pressed radially over the circumference of the strand with a suitable tool and so a gas-tight connection of all wires of the strand to each other and the contact piece is generated.
    The gas-tight connection prevents oxygen access in the area of the contacting of the strand through the contact piece, so that no insulating oxide formation can take place in this area.
    If aluminum wires are pressed together, these wires naturally already have an oxide layer that is very difficult to penetrate on their surface. Crimping methods known from copper technology are not suitable for breaking these oxide layers for all wires in the stranded connection.
    Further complicating the flow behavior of the very soft material aluminum added. This flow behavior makes a uniform radial compression of the stranded wires, as is usually necessary for a gas-tight compression, almost impossible. Oxygen, therefore, can occur and leads to rapid oxide growth, which in turn results in a deterioration of the transverse conductivity between the aluminum wires.
    In order to improve the crimp quality, known bonding methods use additional measures to break up the oxide layer or oxide layer and to increase the compaction. These measures are e.g. additional sharp-edged imprints in the contact piece, additional sleeves in the form of a lattice structure, additional contact aids filled with hard particles for breaking through the oxide layers or stepped crimp forms with different degrees of compression.
    All of these methods have in common the radial compression and cross-contacting of the wires. This type of connection technology has the disadvantage that the quality of the connection is always influenced by the quality of the stranded conductor. Disturbing factors here are, in particular, oxide layers with large thicknesses, adhering substances from the preceding processes as well as substances from the materials surrounding in the area of the contacting.
    OBJECT OF THE INVENTION
    It is therefore an object of the present invention to enable an electrical connection between a cable and a contact piece, which avoids the disadvantages mentioned above. In particular, a corresponding method and a cable contact piece system should be made available in which disturbing factors such as oxide layers with large thicknesses, adhering substances from precursor processes or materials from the area of contacting materials are largely avoided.
    PRESENTATION OF THE INVENTION
    The core of the invention for achieving the stated object is to carry out the contacting of the strand through the contact piece primarily not radially, but axially, wherein "radial". and "axially " on a longitudinal axis of the cable in the end region, where the connection with the contact piece is generated, are related. An axial connection allows the direct connection of each individual stranded wire with the contact piece.
    In the subject invention, the axial connection is achieved via an oblique cut of the strand, i. it is generated an end face of the strand, which is arranged obliquely to the longitudinal axis. That a normal vector of the end face is not parallel, but transverse to the longitudinal axis or has the front side along the longitudinal axis has a length greater than zero. Previously formed by environmental influences oxide layers, which may have grown thick, are removed by the bevel cut.
    After performing the oblique section, the contact piece is pressed or crimped with the front side. In this case, the stranded wires, in particular if they consist of aluminum or an aluminum alloy, on the front side have a very thin, typically very homogeneous oxide layer. The time span between the cutting and the pressing is not relevant for the oxide layer thickness over normal process times in the production. However, it is important that there is no additional contamination from process substances on the surface or that process substances do not deposit on the front side.
    By forming during compression, this thin oxide layer can be easily broken through the contact piece, since the contact piece contacts the stranded wires directly at the end face and is usually made of a substantially harder material than the strand, e.g. made of copper or of a copper alloy.
    In contrast, in a purely radial compression, only the outermost stranded wires are contacted by the contact piece, i. most stranded wires only contact other stranded wires. If, during radial compression, the relatively soft stranded wires now press against each other, due to their softness, they are not able to break up the oxide layer.
    The oblique arrangement of the front side also causes an enlargement of the contact surface in comparison to a front side whose normal vector would be oriented parallel to the longitudinal axis.
    Therefore, in a cable gland system comprising a cable having at least one electrical conductor, preferably at least one wire or at least one strand, and a contact piece for electrically connecting the cable to a contact component, preferably a consumer, the cable being in an end region is pressed with the contact piece, according to the invention provided that the at least one electrical conductor has an end face in the end region of the cable, which is arranged obliquely to a longitudinal axis of the cable in the end region, and that the contact piece has at least one contact surface with which the contact piece Contacted end face and with the contact piece is pressed with the end face to ensure relative to the longitudinal axis of an axial contact between the contact piece and the at least one electrical conductor, wherein the contact surface is at least partially disposed obliquely to the longitudinal axis.
    Analogously, in a method for the electrical connection of a cable comprising at least one electrical conductor, preferably at least one wire or at least one strand, with a contact piece by crimping, according to the invention provided that the method comprises the following steps: - cutting the at least one conductor obliquely to a longitudinal axis of the cable to produce an obliquely arranged to the longitudinal axis end face of the at least one conductor; - Pressing the contact piece with the end face to produce relative to the longitudinal axis of an axial contact between the contact piece and the at least one electrical conductor. Preferably, at least one Crimplasche the contact piece is pressed with the front side.
    When pressing the contact piece or the at least one Crimplasche with the end face of the at least one conductor forming work is done. The resulting loads involve the risk that the at least one conductor can be damaged during the forming process. In particular, when the conductor is a stranded wire, strand breakage or damage to individual stranded wires during forming may occur. This risk is increased when moving the at least one conductor or the strand during forming.
    To avoid this problem, it is provided in a preferred embodiment of the cable-contact piece system according to the invention, that the contact piece has at least one further contact surface with which the contact piece contacts the at least one conductor at least in sections along the circumference and with which the contact piece with the at least one conductor is pressed radially to the longitudinal axis. The further contact surface is at least partially parallel to the longitudinal axis or is at least partially a normal vector of the further contact surface normal to the longitudinal axis.
    The radial compression proves to be advantageous, since this can be carried out before pressing with the end face. Thus, the radially compressed region can be used to fix the at least one conductor in its position, so that the at least one conductor can not move during the subsequent pressing with the end face. Furthermore, the radially compressed area prevents loads from the remaining cable from being able to be introduced into the region of the end face. As a result, the risk of breakage of the at least one conductor is minimized by these loads when pressing the end face with the contact piece or largely excluded.
    Accordingly, it is provided in a preferred embodiment of the method according to the invention that before pressing the contact piece with the end face of the at least one conductor, the contact piece with the at least one conductor is pressed at least partially along its circumference and radially to the longitudinal axis. This compression takes place in a stripped portion of the cable, i. the contact piece contacts the at least one conductor.
    In order to be able to produce a crimp connection in a simple manner during the pressing of the contact piece with the at least one conductor, it is provided in a preferred embodiment of the inventive cable contact piece system that the contact piece has at least one crimping plate which comprises the at least one contact surface , Likewise, it is provided in a preferred embodiment of the cable contact piece system according to the invention, that the at least one Crimplasche comprises at least one further contact surface. In each case, a crimping pad preferably comprises a contact surface and a further contact surface.
    In order to ensure a strain relief for the cable contact piece system, it is provided in a preferred embodiment of the cable-contact piece system according to the invention that the contact piece has at least one retaining tab which presses in an insulated portion of the cable with the cable radially to the longitudinal axis is.
    On the one hand to ensure a particularly effective strain relief and on the other hand to allow the pressing of the at least one retaining tab in a simple manner, preferably with conventional crimping tools, it is provided in a particularly preferred embodiment of the cable-contact piece system according to the invention that two retaining tabs provided are at least partially opposite each other and arranged along the longitudinal axis are arranged one behind the other.
    Analogously, it is provided in a preferred embodiment of the method according to the invention that the contact piece is pressed in an insulated portion of the cable with the cable radially to the longitudinal axis.
    In order to compress the at least one Crimplasche in a simple manner, preferably with conventional
    Crimping tools, it is provided in a preferred embodiment of the cable-contact piece system according to the invention that two Crimplaschen are provided, which are arranged opposite each other and seen along the longitudinal axis side by side.
    According to the invention, the at least one crimping lug of the contact piece is designed in such a form that due to the obliquely arranged end face, a conductor cross section changing over a crimping length is taken into account. The at least one Crimplasche or the contact surface forms a pressure angle, which is always lower relative to the longitudinal axis in an unpressed state of the at least one Crimplasche, as the intersection angle of the line. Accordingly, it is provided in a preferred embodiment of the inventive cable-contact piece system that at least one normal vector of the at least one contact surface with the longitudinal axis forms an angle which is greater than an angle which a normal vector of the end side with the longitudinal axis in an unpressed state includes.
    In a particularly preferred embodiment of the cable contact piece system according to the invention it is provided that in an unpressed state of the cable contact piece system, in which the longitudinal axis of the cable between the two Crimplaschen is arranged and the end face of the at least one conductor, the contact surfaces of the Crimplaschen is arranged facing, angles between normal vectors of the contact surfaces and the longitudinal axis are greater than an angle between a normal vector of the end face and the longitudinal axis.
    Due to the geometry of the at least one crimping plate or the at least one contact surface as a function of the compressed contact part volume, a compaction of the at least one conductor, preferably the at least one stranded wire, in the region of the front side is achieved such that a deformation and thus a cold welding of the at least one conductor, preferably the stranded wires, is reached to the contact piece, whereby a stable contact resistance is ensured.
    Accordingly, it is provided in a preferred embodiment of the method according to the invention that the pressing of the contact piece with the end face is carried out with a pressing pressure which is selected so that a cold welding of the at least one conductor is achieved with the contact piece.
    The inventive method can be applied in particular to conductors made of light metal. Accordingly, it is provided in a preferred embodiment of the cable contact piece system according to the invention that the at least one conductor made of light metal, preferably made of aluminum or an aluminum alloy.
    In order to prevent the quality of connection could be impaired by oxidation of oxygen, it is provided in a preferred embodiment of the cable contact piece system according to the invention that the contact piece is made of copper or a copper alloy and a surface coating, preferably of a composition, which comprises tin and / or nickel and / or silver. In particular, tin is suitable for surface coating due to the lubricating behavior during pressing. In addition, tin is considered to be favorable in view of the cold welding of aluminum because of its similar properties, since the surface coating is not allowed to prevent or impair the cold welding connection to the coating itself and to the contact piece.
    In order to reinforce the intimate connection between the at least one contact surface and the at least one electrical conductor, preferably the stranded wires, it is provided in a preferred embodiment of the cable contact piece system according to the invention that the at least one contact surface at least partially with a corrugation and / or serrations and / or grooves is provided.
    According to the invention, a specially adapted cutting die is used for the oblique cutting of the at least one line, which performs an oblique cut of the cable via a guide system in the manner of operation of a guillotine. The cable is kept close to the cutting blade of the cutting die of guide rails with a contour adapted to the cable shape. The stripping of the conductor is carried out only after cutting the cable by means of die knife. The shroud length depends on the extent of that region along the longitudinal axis, via which a compression of the contact piece takes place with the conductor. Therefore, it is provided in a preferred embodiment of the method according to the invention that an electrically insulating cable sheath, which initially surrounds the at least one conductor circumferentially in the radial direction, is cut with the at least one conductor and only then removed from a subsequent to the end portion of the cable becomes. By stripping only after the bevel cut, on the one hand the time can be kept short, in which those areas of the conductor which are pressed with the contact piece are exposed to air and thus oxygen before this compression, on the other hand, the probability of contamination of the Front side minimized by process materials, as the jacket protects the stranded wire as long as possible from such process materials.
    BRIEF DESCRIPTION OF THE FIGURES
    The invention will now be explained in more detail with reference to an embodiment. The drawings are exemplary and should be the
    Although set out the idea of the invention, it does not restrict or even reproduce it in any way.
    Showing:
    Fig. La an axonometric view of a cable and a contact piece of a cable contact piece according to the invention Sy stems
    Fig. Lb enlarged view of the detail of Fig. La
    Fig. 2 is an axonometric view of the invention
    Cable contact system in a non-pressed state
    Fig. 3 is an axonometric view of the cable contact piece system according to the invention
    4a is a sectional view of the cable according to the invention
    Contact piece system in the unpressed state of FIG. 2, wherein the section along a longitudinal axis of the cable runs
    4b is a sectional view of the cable according to the invention
    Contact piece system, wherein the section along the longitudinal axis of the cable runs
    5a is a sectional view of the cable according to the invention
    Contact piece system according to the section line A-A in Fig. 4b
    5b is a sectional view of the cable according to the invention
    Contact piece system according to the section line B-B in Fig. 4b
    5c is a sectional view of the cable according to the invention
    Contact piece system according to the section line C-C in Fig. 4b
    Fig. 6 is a plan view of a newly unfolded contact piece
    WAYS FOR CARRYING OUT THE INVENTION
    Fig. La shows in axonometric view of a cable 2 and a contact piece 5 of a cable contact system according to the invention 1. The cable 2 comprises a stranded wire 3 with stranded wires 4. The stranded wire 3 is preferably made of aluminum or an aluminum alloy and is in an insulated Section 13 of the cable 2 surrounded by an electrically insulating sheath 12. For electrical connection of the cable 2 or the strand 3 with the contact piece 5, the cable 2 is stripped in an end region or has a stripped portion 14 comprising the end region, in which the cable sheath 12 is removed and the stranded wire 3 is exposed.
    A free end of the strand 3 in the end region of the cable 2 has an end face 6, which is arranged obliquely to a longitudinal axis 7 of the cable 2 in its end region. That a normal vector 17 (see Fig. 4a) of the end face 6 is not parallel, but transverse to the longitudinal axis 7 or the end face 6 along the longitudinal axis 7 has a length 20 (see Fig. 4b) greater than zero.
    The oblique end face 6 is produced by an oblique cut of the strand 3, for which oblique cut according to the invention a specially adapted cutting die (not shown) is used, which performs a slanted cut of the cable via a guide system in the manner of operation of a guillotine. The cable 2 is doing close to the
    Cutting knife the cutting die of guide rails with a cable 2 adapted contour held in shape. The stripping of the strand 3 is performed only after cutting the cable 2 by means of Matrizenmesser. A sheath length, i. the extent of the stripped section 14 along the longitudinal axis 7, depends on the extent of that region along the longitudinal axis 7, via which a compression of the contact piece 5 is to take place with the stranded wire 3. In order to prevent or minimize the formation of an oxide layer on the end face 6, the oblique cut and the stripping take place only immediately before the assembly and pressing with the contact piece. 5
    The contact piece 5 is preferably made of copper or a copper alloy and is provided with a surface coating, preferably of a composition comprising tin and / or nickel and / or silver, the oxidation, in particular in those areas in which the contacting of the Litz 3 takes place, counteracts. For electrical connection of the contact piece 5 with a contact component, preferably a consumer, the contact piece 5 has a bore 15. Through this a screw can be guided, i. the contact piece 5 can be screwed to the contact component.
    The contact piece 5 has two Crimplaschen 8, which protrude from a main body 21 of the contact piece 5 upwards and are arranged opposite to each other. The Crimplaschen 8 are used for electrical contacting and pressing of the contact piece 5 with the strand 3.
    Furthermore, the contact piece 5 on two retaining tabs 11, which also project from the main body 21 upwards and are arranged opposite to each other. The retaining tabs 11 are used for pressing with the cable 2 in its insulated portion 13 in order to ensure a strain relief for the contact piece 5 and the cable-contact piece system 1.
    The contact piece 5 can be produced as a stamped part, wherein it is initially present after punching as a flat workpiece, as shown in Fig. 6. Subsequently, the Crimplaschen 8 are each bent twice in order to be brought into the shape shown in Fig. La. The retaining tabs 11 undergo a simple bending process to be brought into the shape shown in Fig. La.
    In order to produce the cable-contact piece system 1, starting from the cable 2 and contact piece 5 shown in Fig. La, the cable 2 is first inserted into the contact piece 5, that the cable 2 is located on the base body 21 and the stripped portion 14 between the Crimplaschen 8 is added. The insulated portion 13 is arranged between the retaining tabs 11. Fig. 2 shows the cable contact system 1 in this unpressed state.
    To complete the cable contact piece system 1, as shown in Fig. 3, there is a pressing of the Crimplaschen 8 with the strand 3 and a pressing of the retaining tabs 11 with the insulated portion 13 of the cable 2. The respective pressing is by means per se known crimping performed.
    The crimping of the Crimplaschen 8 takes place in two stages. For contacting the strand 3, each Crimplasche 8 has a contact surface 9 and a further contact surface 10. The contact surface 9 is used for contacting and pressing with the end face 6. Preferably, the contact surface 9 may include a corrugation 22, teeth or grooves or may be arranged on the contact surface 9 in order to strengthen the intimate connection to the stranded wires 4. Such a corrugation 22 is shown schematically in Fig. Lb, which shows an enlarged view of the detail of Fig. La.
    This compression thus has an axial component or is substantially axial insofar as the strand 3 is contacted axially via the end face 6. That Essentially, each individual stranded wire 4 is electrically connected directly to the contact piece 5.
    By means of the further contact surface 10, however, each Crimplasche 8 contacts the strand 3 in a circumferential portion of the strand 3, and there is a radial compression of the further contact surface 10 with the strand 3. This radial compression is the first stage of the entire Crimplaschen 8 compression process , In this way, the strand 3, in particular the end face 6 is fixed in position relative to the contact piece 5. When pressing the contact surface 9, the strand 3 can not move so.
    To fix the position, transverse grooves 23 in the main body 21 of the contact piece 5, which are clearly visible in FIG. 1a, also contribute. The transverse grooves 23 should basically prevent axial displacement of the strand 3 under tensile stress.
    When pressing the Crimplaschen 8 on the contact surfaces 9 with the end face 6 of the strand 3 forming work is done. The loads occurring in this case involve the risk that the strand 3 may be damaged during the forming process. By initially the radial compression takes place, the strand 3 is fixed, which minimizes the risk of strand breakage or damage to the stranded wires 4 during forming.
    Fig. 4b shows a sectional view of the finished cable contact piece system 1, wherein the longitudinal axis 7 extends in the sectional plane. It can be clearly seen that the pressing of the contact piece 5 with the end face 6 takes place via the contact surfaces 9 of the crimping lugs 8, whereas the at least partially circumferential contacting of the stranded wire 3 or the radial compression takes place via the further contact surfaces 10.
    The exact course of the contact surfaces 10 is further illustrated by the sectional views of Fig. 5a, Fig. 5b and Fig. 5c. These sectional views correspond to the sectional lines A-A, B-B and C-C in Fig. 4b, wherein the arrows in Fig. 4b indicate the viewing direction.
    Moreover, from Fig. 4b, the radial compression of the retaining tabs 11 with the cable 2 in its isolated portion 13 clearly visible.
    Basically, a pressing pressure during the pressing of the contact piece 5 with the end face 6 is selected so that a cold welding of the strand 3 or the stranded wires 4 takes place with the contact surface 9. By choosing the geometry of the Crimplaschen 8 and the contact surfaces 9 in the unpressed state, the compression of the strand 3 can be optimized during compression in order to ensure the best possible cold welding of the stranded wires 4 with the contact piece 5 and thus the most stable contact resistance.
    Such an optimized geometry of the contact surfaces 9 is apparent from the sectional view of Fig. 4a, which shows a view analogous to Fig. 4b, but the cable contact piece system 1 is in the unpressed state (see Fig. 2). It can be seen that an angle 19 between the normal vector 17 of the end face 6 and the longitudinal axis 7 is smaller than an angle 18 between a normal vector 16 of the contact surfaces 9 and the longitudinal axis 7. Typically, the angle 19 is in the range of 30 ° to 60 ° , preferably from 45 ° to 55 °, and the angle 18 in the range of 40 ° to 70 °, preferably 60 ° to 70 °.
    By this geometry, a continuous, uniform as possible compression of the strand 3 over those region of the end face 6, which contacts the contact surfaces 9, achieved. Of course, this geometry is not bound to the presence of two Crimplaschen 8, it must be arranged at least one contact surface 9 on the contact piece 5 in the corresponding manner relative to the end face 6 at least one conductor of the cable 2 only. For example, the at least one contact surface 9 may be provided on an annularly closed section of the contact part 5.
    The pressing proceeds in the presence of the geometry according to the invention as seen along the longitudinal axis 7 in a direction away from the stripped portion 14 to the isolated portion 13 direction.
    After pressing, the end face 6 extends at least in sections, i. in those areas in which the contact surfaces 9 contact the end face 6, parallel to the contact surfaces 9, so that the angles 18, 19 are the same.
    REFERENCE LIST 1 Cable gland system 2 Cable 3 Strand 4 Wire of strand 5 Contact piece 6 End of strand 7 Longitudinal axis of cable 8 Crimping plate 9 Contact surface of crimping lug Further contact surface of crimping lug 11 Retaining tab 12 Cable sheath 13 Insulated section of cable 14 Stripped section of cable 15 Bore 16 Normal vector of the contact surface 17 Normal vector of the end face 18 Angle between the normal vector of the contact surface and the longitudinal axis 19 Angle between the normal vector of the end face and the longitudinal axis 20 Length of the front side along the longitudinal axis 21 Body of the contact piece 22 Corrugation of the contact surface of the Crimplasche 23 transverse grooves
    权利要求:
    Claims (16)
    [1]
    CLAIMS 1. Cable contact system (1) comprising a cable (2) with at least one electrical conductor, preferably at least one wire or at least one stranded wire (3), and a contact piece (5) for electrically connecting the cable (2) with a contact component, preferably a consumer, wherein the cable (2) in an end region with the contact piece (5) is pressed, characterized in that the at least one electrical conductor (3) in the end region of the cable (2) has an end face (6) , which is arranged obliquely to a longitudinal axis (7) of the cable (2) in its end region, and that the contact piece (5) has at least one contact surface (9) with which the contact piece (5) contacts the end face (6) and with the contact piece (5) is pressed with the end face (6) in order, with respect to the longitudinal axis (7), to ensure axial contacting between the contact piece (5) and the at least one electrical conductor (3), wherein the contact surface che (9) is arranged at least partially obliquely to the longitudinal axis (7).
    [2]
    2. Cable contact piece system (1) according to claim 1, characterized in that the contact piece (5) has at least one further contact surface (10) with which the contact piece (5) the at least one conductor (3) at least in sections along whose circumference is contacted and with which the contact piece (5) with the at least one conductor (3) is pressed radially to the longitudinal axis (7).
    [3]
    3. cable contact piece system (1) according to one of claims 1 to 2, characterized in that the contact piece (5) has at least one Crimplasche (8), which comprises the at least one contact surface (9).
    [4]
    4. cable contact piece system (1) according to claim 3, characterized in that the at least one Crimplasche (8) which comprises at least one further contact surface (10).
    [5]
    5. cable contact piece system (1) according to one of claims 1 to 4, characterized in that the contact piece (5) has at least one retaining tab (11) in an insulated portion (13) of the cable (2) with the Cable (2) is pressed radially to the longitudinal axis (7).
    [6]
    6. cable contact piece system (1) according to claim 5, characterized in that two retaining tabs (11) are provided, which are at least partially opposite each other and along the longitudinal axis (7) arranged one behind the other.
    [7]
    7. cable contact piece system (1) according to one of claims 3 to 6, characterized in that two Crimplaschen (8) are provided, which are arranged opposite each other and seen along the longitudinal axis (7) side by side.
    [8]
    8. cable contact piece system (1) according to one of claims 1 to 7, characterized in that at least one normal vector (16) of the at least one contact surface (9) with the longitudinal axis (7) includes an angle (18) which is larger is an angle (19) enclosed by a normal vector (17) of the face (6) with the longitudinal axis (7) in a non-compressed state (Figs. 2, 4a).
    [9]
    9. cable contact piece system (1) according to one of claims 1 to 8, characterized in that the at least one conductor (3) made of light metal, preferably made of aluminum or an aluminum alloy.
    [10]
    10. Cable contact piece system (1) according to one of claims 1 to 9, characterized in that the contact piece (5) is made of copper or a copper alloy and a surface coating, preferably of a composition, the tin and / or nickel and / or silver comprises.
    [11]
    11. Cable contact piece system (1) according to one of claims 1 to 10, characterized in that the at least one contact surface (9) is provided at least in sections with a corrugation (22) and / or serrations and / or grooves.
    [12]
    12. A method for electrically connecting a cable (2) comprising at least one electrical conductor, preferably at least one wire or at least one stranded wire (3), with a contact piece (5) by compression, characterized in that the method comprises the following steps: - Cutting the at least one conductor (3) obliquely to a longitudinal axis (7) of the cable (2) in order to produce an end face (6) of the at least one conductor (3) arranged obliquely to the longitudinal axis (7); - Pressing the contact piece (5) with the end face (6) in relation to the longitudinal axis (7) to produce an axial contact between the contact piece (5) and the at least one electrical conductor (3).
    [13]
    13. The method according to claim 12, characterized in that an electrically insulating cable sheath (12), which initially surrounds the at least one conductor (3) in the radial direction circumferentially, with the at least one conductor (3) is cut and only then from one to the end face (6) adjoining portion (14) of the cable (2) is removed.
    [14]
    14. The method according to any one of claims 12 to 13, characterized in that the pressing of the contact piece (5) with the end face (6) is carried out with a pressing pressure which is chosen so that a cold welding of the at least one conductor (3) the contact piece (5) is achieved.
    [15]
    15. The method according to any one of claims 12 to 14, characterized in that prior to the pressing of the contact piece (5) with the end face (6) of the at least one conductor (3) the contact piece (5) with the at least one conductor (3) at least is compressed in sections along the circumference radially to the longitudinal axis (7).
    [16]
    16. The method according to any one of claims 12 to 15, characterized in that the contact piece (5) in an insulated portion (13) of the cable (2) with the cable (2) is pressed radially to the longitudinal axis (7).
    类似技术:
    公开号 | 公开日 | 专利标题
    DE102008031588B4|2011-03-24|Contacting of light metal cables
    DE112010002631T5|2012-06-14|Method for producing an electrical cable with a connection
    DE112009000314T5|2010-12-16|Connector and harness
    DE102011077888B4|2016-10-13|Method for assembling a cable
    EP3422481B1|2020-12-23|Contact system for contacting a braided shield and a contact element
    DE1057193B|1959-05-14|Electrical compression sleeve connector
    AT516375B1|2016-05-15|Cable contact system and method for electrically connecting a cable to a contact piece
    DE102013205235A1|2014-09-25|crimp
    EP2371036A1|2011-10-05|Electrical contact connection and method for producing an electrical contact connection
    DE102011089207B4|2021-02-04|Method for contacting a stranded wire with a contact
    EP2596552B1|2016-02-10|Crimp element for crimp connection
    DE102014117410A1|2016-06-02|Electrical contact element, press-fit pin, socket and leadframe
    EP2456013B1|2020-01-08|Force-fit and form-fit crimp connection for a coaxial connector and crimping tool for same
    DE102013013151A1|2015-02-12|Method for electrically connecting the strand of an electrical conductor to a conductor connection element and ready-made electrical line
    DE102011084174A1|2013-04-11|crimp
    WO2016096109A1|2016-06-23|Crimp contact and connection assembly having a crimp contact
    DE102009029339A1|2011-03-24|Line connector for electrically connecting at least two electrical conductors, electrical line with such a line connector and method for electrically connecting two electrical conductors
    DE202016102145U1|2016-05-12|Cable contact system for the electrical connection of a cable with a contact piece
    DE102013201944A1|2014-08-07|Cable with conductors with electrically conductive particles
    DE102011077885B4|2015-07-09|Line and method for packaging such a line
    DE102011077886B4|2016-10-13|Method of cable assembly
    DE102013021278B3|2015-06-03|Method for electrically conducting a connection to a contact element
    DE102008030274A1|2010-03-25|line unit
    EP2672569A1|2013-12-11|Method for connecting electrical conductors and composite conductor
    DE102014108347A1|2015-12-17|Electric stranded conductor and method for producing a stranded electrical conductor
    同族专利:
    公开号 | 公开日
    AT516375B1|2016-05-15|
    DE202015008963U1|2016-04-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2620579A1|1987-09-14|1989-03-17|Aerospatiale|Device for connecting the end of an electrical cable to at least one other conducting element|
    WO2011122622A1|2010-03-30|2011-10-06|古河電気工業株式会社|Crimping terminal, connect structure body, and connector|
    US20130309903A1|2012-05-15|2013-11-21|Sumitomo Wiring Systems, Ltd.|Crimp terminal|CN110556635A|2018-06-04|2019-12-10|矢崎总业株式会社|Terminal-equipped electric wire and method for manufacturing terminal-equipped electric wire|
    JP2019204653A|2018-05-23|2019-11-28|株式会社オートネットワーク技術研究所|Electric wire with terminal|
    JP2019212458A|2018-06-04|2019-12-12|矢崎総業株式会社|Terminal-equipped wire and manufacturing method thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50884/2014A|AT516375B1|2014-12-04|2014-12-04|Cable contact system and method for electrically connecting a cable to a contact piece|ATA50884/2014A| AT516375B1|2014-12-04|2014-12-04|Cable contact system and method for electrically connecting a cable to a contact piece|
    DE202015008963.1U| DE202015008963U1|2014-12-04|2015-12-01|Cable contact system for the electrical connection of a cable with a contact piece|
    [返回顶部]