EP4305714A1 - Procédé de production d'une cosse de câble et cosse de câble - Google Patents

Procédé de production d'une cosse de câble et cosse de câble

Info

Publication number
EP4305714A1
EP4305714A1 EP22714105.8A EP22714105A EP4305714A1 EP 4305714 A1 EP4305714 A1 EP 4305714A1 EP 22714105 A EP22714105 A EP 22714105A EP 4305714 A1 EP4305714 A1 EP 4305714A1
Authority
EP
European Patent Office
Prior art keywords
cable
section
lug
pressing
cable lug
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
EP22714105.8A
Other languages
German (de)
English (en)
Inventor
Vladislav ÁCS
Martin IVANCO
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.)
Skoda Auto AS
Original Assignee
Skoda Auto AS
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 Skoda Auto AS filed Critical Skoda Auto AS
Priority claimed from PCT/CZ2022/000012 external-priority patent/WO2022188902A1/fr
Publication of EP4305714A1 publication Critical patent/EP4305714A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • 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
    • H01R4/22—End caps, i.e. of insulating or conductive material for covering or maintaining connections between wires entering the cap from the same end
    • 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
    • H01R4/70—Insulation of connections

Definitions

  • the invention relates to a cable lug for grounding the cable harness to the vehicle body, in particular the manufacturing method of the cable lug, which enables simple integration into the process of automated production of the vehicle cable harness.
  • So-called cable lugs are used to ground the electrical current by means of a conductive watertight connection of the cable harness to the vehicle body.
  • the cable lugs are usually designed in such a way that they have a flat section with an opening at one end, which enables connection to the vehicle body, for example by means of a screw passing through this opening. This section is referred to as the "shoe”.
  • the cable lugs usually have a sleeve-shaped section for attaching, mostly pressing (so-called crimping) the cable.
  • a more robust solution is represented by the cable lug described in document DE19843886 A1, which consists of a single piece of metal, namely a metal tube. The tube is crimped at one end, creating a flat end piece, which is then drilled with a hole to allow connection to the bodywork.
  • the disadvantage of such a solution is primarily that the cable lugs consist of individual separate pieces of metal pipe.
  • the production of cable lugs that are connected to one another on a band and are therefore suitable for integration into an automated process is described in patent specification EP0353810 A2.
  • the cable lugs are made from a metal strip and are shaped to have a section for connection to the vehicle body (the lug itself) and a section for crimping the cable, but unlike the solution of document EP1617517 B1 these are parts not made of two different pieces.
  • the portion for crimping the cable is not tubular. This section only acquires its tubular shape after the actual pressing process, in which the two outer ends of the flat or partially curved material are rolled up towards one another.
  • the step of providing a metal strip and the step of cutting out the blank from this metal strip this blank being formed as a compact part and having a section for connecting the cable lug to the vehicle body and a segment for configuration of a section for crimping the cable, which are connected to each other by a connecting section and the section for connecting the cable lug to the vehicle body includes a connection hole, the representation of which lies in the fact that it is further after the step of cutting the blank from the metal strip comprises the step of deep-drawing the portion for swaging the cable from the segment to form the portion for swaging the cable by the force of a tool in a direction perpendicular to the surface of the segment, the resulting portion for swaging of the cable has a cavity for plugging in the cable.
  • the advantage of the present invention lies primarily in the fact that the cable lug is made from a single piece, as a result of which it is sufficiently robust and easier to manufacture than a multi-part cable lug. Because the cable lug is made from a metal strip, this manufacturing method can be integrated into the process of automated manufacturing of the vehicle wiring harness. The cable lug is also not sealed by means of the heat-shrink tubing, which eliminates the tedious manual work of manually attaching the tubing to individual cable lugs. Due to the fact that the section for pressing the cable is created by deep drawing from the metal strip, the pressing of the cable into the corresponding cavity can Standard crimping techniques can be used, where this section of the lug is simply squeezed together with the inserted cable and gasket.
  • the manufacturing method of the cable lug preferably includes the step of bending the connecting portion relative to the portion for crimping the cable, so that the cavity for inserting the cable from the portion for crimping the cable Cable opens approximately in the perpendicular direction to the axis of the connection hole. This creates a cable lug that is used to crimp the cable by running the cable perpendicular to the axis of the connection hole.
  • the manufacturing process of the cable lug continuing after the bending step of the connecting portion opposite the portion for crimping the cable comprises the step of bending at least one limb, in that at least one limb encloses the portion for crimping the cable. Due to the fact that the legs enclose the section for pressing the cable, an additional attachment of the section for pressing the cable to the connection section is ensured, which leads to an even more robust construction of the cable lug.
  • the manufacturing method of the terminal preferably includes the step of bending the connecting portion into the shape of a step before the step of deep-drawing the portion for wire crimping or after the step of deep-drawing the portion for wire crimping.
  • the bending of the connecting section into a stepped shape has the advantage that no deformation/bending of the cable lug occurs when the cable lug is installed on a flat body surface. In addition, the bending better considers the installation situation in the vehicle.
  • the segment is preferred to form a portion for crimping the wire created in the form of a disc.
  • This shape ensures the deep drawing of a rotationally symmetrical section for the crimping of the cable, which, moreover, does not require any further adjustments, for example in terms of cutting away excess material.
  • Blank cut so that it is advantageously connected to a next blank by means of a connecting strip, the resulting product being a series of cable lugs connected to one another by means of connecting strips. Because the lugs are connected by a connecting strip throughout the manufacturing process, this process can be integrated into automated wire harness manufacturing machines, saving significant time and money.
  • a cable lug having a portion for connecting the cable lug to the vehicle body and a portion for crimping the cable, which are connected to each other by a connecting portion, the portion for connecting the cable lug to the Vehicle body has a connection hole and the portion for crimping the cable has a cavity for inserting the cable, the representation of which lies in the fact that the cable lug is formed as a compact part and that the connecting portion comprises at least one leg, which is a part of the compact cable lug , wherein at least one leg encloses the section for the pressing of the cable.
  • the cable lug according to the invention is characterized by a robust one-piece construction, with the legs providing additional fixation of the section for pressing the cable to the connection section.
  • the cable lug is preferably produced by the manufacturing method of the cable lug according to the present invention.
  • FIG. 1a shows the representation of the blank for producing a cable lug according to the first exemplary embodiment of the present invention
  • FIG. 1b shows a non-final shape of the cable lug according to the first embodiment of the present invention with a section for pressing the cable in a first partial configuration
  • FIG. 1c shows a non-final shape of the cable lug according to the first embodiment of the present invention a section for pressing the cable in a second partial formation
  • 1d shows a non-final form of the cable lug according to the first exemplary embodiment of the present invention with a section for pressing the cable in the final form
  • Fig. 1e shows a non-final shape of the cable lug according to the first embodiment of the present invention with a portion for crimping the cable in final shape and with a step-bent connecting portion
  • Fig. 1f shows the cable lug according to the first embodiment of the present invention
  • Fig. 2 shows a row of cable lugs connected to one another with connecting strips according to the present invention
  • FIG. 3a shows the representation of the blank for producing a cable lug according to the second embodiment of the present invention
  • FIG. 3b shows the representation of the non-final shape of the cable lug according to the second exemplary embodiment of the present invention with a connecting section bent in a stepped manner
  • Fig. 3c shows the non-final shape of the cable lug according to the second embodiment of the present invention with a step-bent connecting portion and a portion for crimping the cable in a partial formation
  • Fig. 3d shows the non-final shape of the cable lug according to the second embodiment Embodiment of the present invention with a step-shaped bent connecting section and with a section for pressing the cable in a second partial formation
  • 3e shows a non-final shape of the cable lug according to the second exemplary embodiment of the present invention with a step-shaped bent connection section and with a section for pressing the cable in a final shape
  • FIG. 3f shows the cable lug according to the second embodiment of the present invention
  • FIG. 4 shows an electrically conductive connection between the cable and the cable lug and the method of sealing the electrical contact within the cable lug according to the first embodiment of the present invention
  • FIG 5 shows an electrically conductive connection between the cable and the cable lug and the method of sealing the electrical contact within the cable lug according to the second embodiment of the present invention.
  • the manufacturing method for the cable lug 1 initially includes the step of providing a Metal band, the thickness of the metal band provided is significantly smaller than its two remaining dimensions and this is preferably made of copper or copper alloys.
  • the strength of the metal strip is chosen according to the required size of the cable lug 1, taking into account the maximum current density.
  • a thickness of the metal strip preferably ranges from 0.5 mm to 3.0 mm.
  • a blank 2 is cut out of the metal strip provided, the shape of which is designed in such a way that it enables the cable lug 1 according to the present invention to be produced from this blank 2 .
  • the cutting out of the blank 2 and the further subsequent steps of the manufacturing method of the cable lug 1 are carried out with the aid of a follow-up tool.
  • the follow-up tool consists of drawing punches and drawing dies, the number of which depends on the number of steps of progressive deformation of the cable lug 1 from the blank 2 and also on the thickness of the metal strip or its other parameters. With a metal strip thickness of 1.0 mm to 1.5 mm, for example, the forming takes place in about 15 forming stages.
  • the progressive tool allows the cutting and forming of a metal strip that passes through this tool in stages, so that the blanks 2 of individual lugs 1, and then the lug 1 itself, can remain connected on the strip, as detailed in the next paragraph of this description.
  • the blank 2 is produced as a compact part, which is formed at one end by the portion 3 for connecting the cable lug 1 to the vehicle body and at the other end by the segment 4a for the configuration of the section 4 for the pressing of the cable 7 is completed.
  • the portion 3 for connecting the terminal 1 to the vehicle body in the first embodiment has a flat shape and includes a fitting hole 3a having a circular profile and perpendicularly passing through the portion 3 for connecting the terminal 1 to the vehicle body.
  • the section 3 for connecting the cable lug 1_ to the vehicle body is designed differently, for example it has a different shape, or the connection hole 3a has a different profile, provided that this design allows a reliable connection of the cable lug 1 to the vehicle body is made possible, for example, by means of a screw or other connecting elements.
  • the segment 4a for configuring the portion 4 for crimping the cable 7 in the first embodiment has a flat circular shape, i.e. the shape of a disc, and is connected to the portion 3 for connecting the cable lug 1 to the vehicle body by means of the connecting portion 5.
  • the connecting section 5 is realized as a metal strip whose longest dimension, i.e. its length, lies between the segment 4a for the configuration of the section 4 for the pressing of the cable 7 and the section 3 for the connection of the cable lug 1 to the vehicle body extends.
  • two legs 6 spread out from the connecting portion 5 in the direction perpendicular to its longest dimension and on the opposite side from the connecting portion 5, respectively.
  • only one leg 6 extends from the connecting section 5, provided that this is sufficiently long to enclose the section 4 for the pressing of the cable 7 after it has been bent, as will be described below.
  • section 4 for pressing cable 7 is deep-drawn from segment 4a to form section 4 for pressing cable 7 .
  • the deep-drawing of the section 4 for the pressing of the cable 7 is carried out by the force of the tool in the direction perpendicular to the surface of the segment 4a for the configuration of the section 4 for the pressing of the cable 7 and is shown sequentially in FIGS. 1b to 1d.
  • This force is applied by a follow-up tool, specifically with its respective drawing punch, which acts with force on the segment 4a for the configuration of section 4 for pressing the cable 7, which is located on the respective drawing die of the follow-on tool.
  • FIGS. 1b , 1c and 1d it can be seen that the diameter of the circular profile of the segment 4a for the configuration of the section 4 for the pressing of the cable 7 decreases with a stronger pressure deformation of the segment 4a.
  • the second partial formation 4c of the section 4 for the Crimping of the cable 7 and the final formation of the portion 4 for crimping of the cable 7 is achieved, as shown in Fig. 1d.
  • the stamped portion 4 for pressing the cable 7 has a hollow shape that delimits the cavity for the cable 7 to be inserted.
  • the cavity 9 for the insertion of the cable 7 is rotationally symmetrical in the first exemplary embodiment and opens out on the side of the section 4 for the pressing of the cable 7, on which the force of the drawing punch of the follow-up tool took place.
  • the axis of the cavity 9 for inserting the cable 7 is approximately parallel to the axis of the attachment hole 3a.
  • the cavity 9 for the insertion of the cable 7 or the actual portion 4 for the crimping of the cable 7 comprises a larger diameter portion closer to the mouth of the cavity 9 for the insertion of the cable 7 and one from the mouth of the cavity 9 for the insertion of the cable 7 further located section with a smaller diameter.
  • the connecting portion 5 is bent into the shape of a step as shown in Fig. 1e.
  • the connecting portion 5 thus comprises a raised portion and two lowered portions imaginarily dividing the bending performed.
  • the raised portion of the connecting portion 5 includes the legs 6.
  • the first lowered portion of the connecting portion 5 is connected to the portion 4 for crimping the cable 7 and is level with the latter.
  • the second depressed portion of the connecting portion 5 is connected to the portion 3 for connecting the cable lug 1 to the vehicle body and is on the same plane therewith.
  • the bending of the connecting section 5 into the step shape takes place due to the firm fixing of the deep-drawn section 4 for the pressing of the cable 7, as will be described in detail below.
  • the connection section 5 is already formed before the section 4 is deep-drawn for pressing the cable 7 out of the segment 4a for forming the section 4 for pressing the cable 7 into the stepped shape.
  • the manufacturing method of the cable lug 1 also includes the step of bending the connecting section 5 relative to the section 4 for pressing the cable 7 using the follow-up tool after the step of pressure forming the section 4 for pressing the cable 7 .
  • This bending is carried out most advantageously at the point where the connection section 7 spreads out of the section 4 for the pressing of the cable 5 .
  • the legs 6 are bent using the follow-up tool in such a way that they enclose the section 4 for pressing the cable 7, as shown in FIG. 1f.
  • the legs 6 are made in the first embodiment so that they have a sufficient length to perform the function of additional fixing of the portion 4 for crimping the cable 7 to the connecting portion 5, and at the same time they are not too long so that they do not overlap after bending.
  • these legs 6 to each other or to the External surface of the section 4 for the pressing of the cable 7 are attached to ensure an even more reliable fixation, for example using a laser.
  • the blank 2 in the step of cutting out the blank 2 from a metal band, is cut out in such a way that it is connected to another blank 2 by means of the connecting strip 10 .
  • a row of interconnected blanks 2 is thus produced, which successively runs through the further steps of this method described above using the follow-on tool, the resultant product of this method being a row JM of cable lugs connected to one another with connecting strips 10 .
  • the connecting strip 10 is designed to connect the respective portions 3 for connecting the lug 1 to the vehicle body of each adjacent lug, as shown in FIG.
  • the connecting strip 10 connects other points of the individual adjacent cable lugs 1, provided that the function of the resulting cable lugs or their production is not prevented or restricted by this design.
  • the H series of cable lugs connected to each other with the connection strip 10 can be integrated into the machines for the automated production of cable harnesses, which represents a considerable saving of time and money.
  • the blank 2 is cut out with a follow-on tool in such a way that the legs 6 protrude from the connection section 5 in the vicinity of the connection point of the connection section 5 and the section 3 for the connection of the cable lug 1 spread to the vehicle body as shown in Fig. 3a.
  • the connecting section 5 is bent into the shape of a step using a follow-up tool, as shown in FIG. 3b.
  • the connecting portion 5 thus comprises a raised portion and a lowered portion, which are divided imaginarily by the bending performed approximately halfway along the length of the connecting portion 5 .
  • the superscript section of the connection section 5 is connected to the section 3 for the connection of the cable lug 1 connected to the vehicle body and is in the same plane with it.
  • This raised portion of the connecting portion 5 also includes the legs 6.
  • the lowered portion of the connecting portion 5 is connected to the portion 4 for crimping the cable 7 and is coplanar therewith.
  • section 4 for pressing cable 7 is successively deep-drawn from segment 4a for forming section 4 for pressing cable 7, identical to that in the first exemplary embodiment.
  • the successive pressure forming of the section 4 for the pressing of the cable 7 is shown in FIGS. 3c to 3e.
  • the connecting portion 5 is bent into the stepped shape first after the portion 4 for crimping the wire 7 is press-formed from the segment 4a for forming the portion 4 for crimping the wire 7 .
  • the manufacturing method of the cable lug 1 further includes, after the step of press-forming the portion 4 for crimping the cable 7, the step of bending the connecting portion 5 relative to the portion 4 for crimping the cable 7 to the second mutual position and the step the bending of the legs 6, as can be seen in FIG. 3f.
  • the method according to the second exemplary embodiment therefore differs from the first exemplary embodiment in particular in the specific design of the bending of the connecting section 5 into the step shape.
  • the first embodiment is more advantageous than the second embodiment in this respect because it better considers the installation situation in the vehicle.
  • this method does not include the steps of bending the connecting section 5 in relation to the section 4 for the pressing of the cable 7 and no bending of the legs 6.
  • the resulting product in this embodiment is a cable lug 1 , whose cavity 9 for the insertion of the cable 7 opens in a direction approximately perpendicular to the axis of the attachment hole 3a.
  • the bend in the step of bending the Connection section 5 compared to section 4 for the pressing of the cable 7 only partially executed. So the section 4 for the pressing of the cable 7 is bent in the direction towards the connecting section 5, but does not lie fully against it, but encloses a certain angle with it.
  • this method does not include a step of bending the connecting section 5 into the stepped shape, the section 4 for pressing the cable 7 being deep-drawn into a shape which also has no stepped shape, provided that the possible deformation of the cable lug I during installation on a flat body surface is otherwise avoided in this design.
  • the cable lug 1 according to the present invention is produced as a compact part in the first embodiment shown in FIG connected to each other by a connecting portion 5 .
  • the portion 3 for connecting the terminal 1 to the vehicle body in the first embodiment has a flat shape and includes a fitting hole 3a having a circular profile and perpendicularly passing through the portion 3 for connecting the terminal 1 to the vehicle body.
  • the section 3 for connecting the cable lug 1 to the vehicle body is therefore the same as in the first exemplary embodiment of the blank 2 described above.
  • the section 3 for connecting the cable lug 1 to the vehicle body is designed differently, for example it has a different shape or the connection hole 3a has a different profile, provided that this design enables a reliable connection of the cable lug 1 to the vehicle body, for example by means of a screw or other fasteners is made possible.
  • the connecting section 5 is designed as a metal strip bent in the form of steps.
  • the connecting portion 5 thus comprises a raised portion and two lowered portions, imaginarily separated by the bend made.
  • the first lowered section of the connecting section 5 is connected at its end to the section 4 for pressing the compression cable 7, with the section 4 for the Pressing the cable 7 is bent towards the connecting section 5 so that it preferably rests against it.
  • the second depressed portion of the connecting portion 5 is connected to the portion 3 for connecting the cable lug 1 to the vehicle body and is on the same plane therewith.
  • the raised portion of the connecting portion 5 also includes the legs 6, which spread out from the connecting portion 5 in the direction perpendicular to its longest dimension and each on the opposite side of the connecting portion 5 and are bent towards each other to form the portion 4 for swaging of the cable 7 enclose.
  • the section 4 for crimping the cable 7 has a hollow shape that delimits the cavity 9 for inserting the cable 7 .
  • the cavity 9 for the insertion of the cable 7 is rotationally symmetrical in the first embodiment and opens out in the direction perpendicular to the attachment hole 3a, i. H. the axis of the cavity 9 for inserting the cable 7 is approximately perpendicular to the axis of the attachment hole 3a.
  • the cavity 9 for the insertion of the cable 7 or the actual portion 4 for the crimping of the cable 7 comprises a larger diameter portion closer to the mouth of the cavity 9 for the insertion of the cable 7 and one from the mouth of the cavity 9 for the insertion of the cable 7 further located section with a smaller diameter. As can be seen, for example, in FIG.
  • the portion 4 for crimping the cable 7 and the connecting portion 5 advantageously abut one another, with the legs 6 enclosing the portion with a smaller diameter of the portion 4 for crimping the cable 7 .
  • the legs 6 are made in the first embodiment so that they have a sufficient length to perform the function of additional fixing of the portion 4 for crimping the cable 7 to the connecting portion 5, and at the same time they are not too long so that they do not overlap after bending. Alternatively, it is also possible for the legs 6 to overlap or be so long that they almost rest against one another in the bent state. In addition, these legs 6 can be attached to each other or to the outer surface of the portion 4 for crimping the cable 7 to ensure an even more reliable fixation, for example using a laser. Alternatively spreads from the Connection section 5 only one leg 6, provided that this is long enough to enclose the section 4 for the pressing of the cable 7 in the curved shape.
  • the cable lug 1 is connected to a further cable lug 1 by means of a connecting strip 10, as a result of which a row 11 of cable lugs_i connected to one another by means of the connecting strip 10 is formed.
  • the connecting strip 10 is designed to connect the respective portions 3 for connecting the lug 1 to the vehicle body of each adjacent lug, as shown in FIG.
  • the connecting strip 10 connects other points of the individual adjacent cable lugs 1, provided that the function of the resulting cable lugs 1 or their production is not prevented or restricted by this design.
  • the series V of terminals 1 connected to each other by the connection strip 10 can be integrated into the machines for the automated production of cable harnesses, which represents a significant saving of time and money.
  • the cable lug is produced using the manufacturing method of the cable lug 1 according to the first exemplary embodiment.
  • the cable lug 1 is produced using the production method according to one of the other exemplary embodiments.
  • the raised portion of the connecting portion 5 also includes the legs 6, which extend from the connecting portion 5 in the direction perpendicular to its longest dimension and each on the opposite side of the connecting portion 5 spread and are bent towards each other so that they enclose the section 4 for the pressing of the cable 7.
  • the electrically conductive connection between the cable 7 and the cable lug 1, which was produced by the manufacturing method of the cable lug 1 according to the present invention, is ensured by pressing the cable 7 into the cavity 9 for the cable 7 to be inserted. Before the actual pressing process, the end section of the cable 7 is first stripped of its insulation. A gasket 8 is then inserted in the cavity 9 for the insertion of the cable 7, which inside advantageously rests on the area of gradual narrowing and is located in the larger-diameter portion.
  • the seal 8 includes an opening for the insertion of the cable 7 passing through its center and is made of silicone material in an advantageous embodiment.
  • the cable 7 is then inserted through the opening in the seal 8 into the cavity 9 for the insertion of the cable 7, namely with the stripped section 7a of the cable 7.
  • the stripped section 7a of the cable 7 is thus advantageously in the section with a smaller diameter of the portion 4 for crimping the cable 7, as shown in Fig. 4 and Fig. 5, respectively.
  • the shape of the seal 8 is such that it prevents water from entering the stripped portion 7a of the cable 7 from the external environment.
  • the section 4 for the pressing of the cable 7 with the inserted cable 7 and the seal 8 is subjected to the action of an external force, which causes a deformation of the section 4 for the pressing of the cable 7, as a result of which an electrically conductive and watertight connection between the cable 7 and the cable lug 1 is generated.
  • a standard crimping method known to those skilled in the art can thus be used for crimping the cable.
  • the cable lugs 1 are produced in such a way that the individual cable lugs 1 are connected to one another by means of a connecting strip 10, the process of subsequent sealing and pressing of the cable 7 to this connecting strip IC ) can also be implemented.
  • the row 11 of the cable lugs 1 connected to one another with the connecting strip 10 can thus be placed in the machines for automated production of cable harnesses are integrated, which are well known to those skilled in the art, which represents a considerable saving of time and money.
  • the cable lug described above and its manufacturing method can also be used in industries other than the automotive industry.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

L'invention concerne un procédé de production d'une cosse de câble (1), comprenant les étapes successives suivantes : fourniture d'une bande métallique et découpe de l'ébauche (2) à partir d'une bande métallique. L'ébauche (2) se présente sous la forme d'une pièce individuelle compacte et comprend une portion (3) destinée au raccordement de la cosse de câble (1) à la carrosserie de véhicule et un segment (4a) destiné à former une portion (4) servant au sertissage du câble (7), qui sont reliés entre eux par une portion de raccordement (5). La portion (3) destinée au raccordement de la cosse de câble (1) à la carrosserie de véhicule comprend un trou de raccordement (3a). Le procédé de production de la cosse de câble (1) comprend également l'étape d'emboutissage profond de la portion (4) servant au sertissage du câble (7) à partir du segment (4a) destiné à former la portion (4) servant au sertissage du câble (7), la portion (4) servant au sertissage du câble (7) obtenue comprenant une cavité (9) pour l'insertion du câble (7). L'invention concerne également une cosse de câble (1), qui se présente sous la forme d'une pièce individuelle compacte et dont la portion de raccordement (5) possède au moins une branche (6) qui s'étend autour de la portion (4) servant au sertissage du câble (7).
EP22714105.8A 2021-03-12 2022-03-03 Procédé de production d'une cosse de câble et cosse de câble Pending EP4305714A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ202100127 2021-03-12
PCT/CZ2022/000012 WO2022188902A1 (fr) 2021-03-12 2022-03-03 Procédé de production d'une cosse de câble et cosse de câble

Publications (1)

Publication Number Publication Date
EP4305714A1 true EP4305714A1 (fr) 2024-01-17

Family

ID=89159398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22714105.8A Pending EP4305714A1 (fr) 2021-03-12 2022-03-03 Procédé de production d'une cosse de câble et cosse de câble

Country Status (1)

Country Link
EP (1) EP4305714A1 (fr)

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