EP0684666B1 - Multipole cable plug - Google Patents

Multipole cable plug Download PDF

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Publication number
EP0684666B1
EP0684666B1 EP95107061A EP95107061A EP0684666B1 EP 0684666 B1 EP0684666 B1 EP 0684666B1 EP 95107061 A EP95107061 A EP 95107061A EP 95107061 A EP95107061 A EP 95107061A EP 0684666 B1 EP0684666 B1 EP 0684666B1
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EP
European Patent Office
Prior art keywords
cable
plug
distributor
connector according
plug connector
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.)
Expired - Lifetime
Application number
EP95107061A
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German (de)
French (fr)
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EP0684666A3 (en
EP0684666A2 (en
Inventor
Jörg Koch
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.)
Hirschmann Electronics GmbH and Co KG
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Hirschmann Electronics GmbH and Co KG
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Publication of EP0684666A2 publication Critical patent/EP0684666A2/en
Publication of EP0684666A3 publication Critical patent/EP0684666A3/en
Application granted granted Critical
Publication of EP0684666B1 publication Critical patent/EP0684666B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing
    • 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
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact

Definitions

  • the invention relates to a multi-pole cable connector according to the preamble of claim 1, as is already known from the German utility model DE-U-93 08 457.
  • This connector is characterized by a space-saving clamp connector principle, a recyclable or releasable and reusable clamp contact as well as a simple connection of cables with individual strands arranged in a defined order and to be assigned to specific plug contacts, in which only one strand has to be fed to the associated strand guide channel of the distributor and when the cable is inserted, all other individual strands are automatically assigned to the corresponding plug contacts.
  • a free assignment or the use of the known connector for any configured stranded wire is not possible with this connector.
  • the invention is therefore based on the object of a cable connector of the type mentioned at the beginning for connecting any configured stranded cable to create, in which the means for clamping contact as low as possible Have dimensions, as simple and inexpensive as possible as well as being easy to use and permanently safe Ensure contact.
  • the outer wall parts which are resiliently formed by the longitudinal slots, are pressed together and the individual strands are thereby clamped in the channels in such a way that when the plug-in part and the grip piece with the inserted distribution piece are subsequently joined together, the contact skewers are completely inserted into the stranded wires can penetrate, whereby a permanently secure contact is achieved.
  • the angles of inclination of the interacting conical surfaces can be the same.
  • a shorter version with a defined clamping effect when the distribution piece is in contact with a stop can be realized in that the angle of inclination to the axis in the inner contour of the grip piece is greater than that of the outer surface of the clamping area of the distribution piece.
  • the inner contour is cylindrical or only partially conical.
  • the clamping device constructed according to the invention is not only highly effective and can be adapted in a very simple manner to the respective requirements of the clamping force by appropriate dimensions of the channels and / or the conical surfaces, but in particular also extremely space-saving because neither angling of the channels nor additional clamping means such as screws, springs etc. are required so that the outer dimensions are essentially determined only by the number, diameter and spacing of the channels.
  • the cable connector is simple and uncomplicated also particularly inexpensive and easy to install.
  • the outer wall parts surrounding the channels are considerably more elastic due to the additional slots provided in the intermediate channel walls, as a result of which the axial insertion force to be applied for a certain radially effective clamping force is substantially lower.
  • additional slots for example several slots between the channel and the outer wall
  • recesses for example several slots between the channel and the outer wall
  • care being taken that the channel walls are still strong are enough for effective radial wire clamping by axially penetrating contact spikes.
  • the dimensioning of the channels is already in front the actual clamping through the interacting conical surfaces if the distributor is inserted into the handle, pre-fix the inserted individual strands reached, even with unintentional minor Tensile forces on the cable or on individual strands or not equitable, approximately jerky insertion of the distribution piece in the Grip the contact of the mating end faces on the stops and thus ensures their target position for radial clamping.
  • the smallest channel diameter and thus the greatest pre-fixing force here if the through the slots and / or the material of the Given individual elasticity, the individual strands still without additional Measures (such as bending) can be inserted into the channels.
  • Minimizing the channel diameter and increasing the pre-fixing force and / or an easier insertion of the strands into the channels is according to Claim 3 achievable in that the channels have insertion funnels. A retreat of the individual strands in the channels from the target position can thus be effectively excluded in practice.
  • a further ease of assembly is due to the features of claim 4 achieved because with such a trained cable connector Distribution piece not held in the handle by a special measure must be when it is plugged together with the plug part. Much more holds it in there by itself until after the further assembly step of screwing it together is finally fixed by the handle and plug-in part.
  • the outer surfaces of the clamping area of the distributor and the interacting with it Inner surfaces of the mating portion of the handle can be conical.
  • the handle is used in an advantageous manner as a handle during the assembly of the Cable connector, for receiving and clamping the distributor, as waterproof cable entry and for mechanical / electrical connection with the plug-in part and is therefore particularly inexpensive.
  • the contact carrier To produce the clamp contact, the contact carrier must be connected to the contact elements fixed therein against those held in the distributor Strands are pressed.
  • a union nut which is screwed onto an external thread of the distributor also presses it against the contact carrier and both parts releasably attached to each other.
  • a snap or snap connection instead of the union nut to use.
  • Claim 8 provided a coding device that ensures that it only with correct mutual assignment of contact elements and channels can be screwed together.
  • An embodiment of the distribution piece according to claim 10 ensures that even with very thin stranded wires and regardless of the inclination of the Channels in the clamping area with an optimal centric-axial contact the contact elements aligned therewith can be achieved.
  • claims 11 and 12 are two alternative advantageous designs of the stop indicated for the individual strands, which are particularly in the manufacture according to claim 10 can be produced at no additional cost and ensure that all strands are inserted into the channels of the distributor take the target position in which the contact skewers are full penetrate into the stranded wires so that the maximum radial clamping force and thus create a permanently functioning contact.
  • the four-pole cable connector for connecting a stranded cable 2 with four individual strands 4 encased in a protective sheath 3 consists of a distributor 5 for receiving the strands 4, a cable receptacle 10 composed of a handle 6 and a cable screw connection with a sealing ring 7, spring cage 8 and pressure screw 9 and a plug-in part 16 formed from a contact carrier 11 with contact elements 13 arranged in contact chambers 12, a first union nut 14 for attachment to a mating connector (not shown) and a second union nut 15 for attachment to the distributor 5.
  • the handle 6 has an internal thread on a cable-side section 17 to screw in the pressure screw 9 and on a plug-in section 18 an external thread for screwing on the second union nut 15.
  • the contact elements 13 each consist of a socket 19 and an integrally formed cable-side contact spike 20, the diameter of which is smaller than that of the stranded wires 35.
  • the distributor 5 has a connector 21 on the plug side, with which it is in the fitted cable connector in an adapted recess 22 of the contact carrier 11 is inserted.
  • a coding recess 23 is provided on the connecting piece 21, into which a correspondingly designed coding lug of the contact carrier 11 engages when the connector is installed correctly.
  • a cable-side end part 24 of the distribution piece 5 is designed as an octagon in cross section, the eight flat lateral surfaces 25 tapering conically towards the free end.
  • the shape of the inner contour 26 of the plug-side section 18 of the handle 6 is adapted to the outer contour of the cable-side end part 24 of the distributor 5, the angle of inclination of the conical taper of the inner surfaces being approximately 5 ° and that of the corresponding lateral surfaces 25 approximately 1 ° with respect to the axis.
  • the distribution piece 5 is penetrated by four axially parallel channels 27 for receiving the non-stripped strands 4, which are aligned with the contact elements 13 when the cable connector is installed. They have insertion funnels 28 and each end at an annular stop collar 29, the inner diameter of which is smaller than the strand diameter but larger than the diameter of the contact spikes 20.
  • the intermediate walls 30 in each case two channels 27 and the opposite outer walls between the channels 27 and the corresponding lateral surfaces 25 have slots 31 and 32, respectively.
  • two resilient outer parts 33 are formed, which make the cable-side end part 24 effective as a clamping region 24 for the strands 4 when radial forces are applied.
  • An annular collar 34 is provided between the clamping region 24 and the connecting piece 21, the end faces of which, when the cable plug connector is fitted, bear against corresponding end faces of the contact carrier 11 and of the grip piece 6.
  • the stranded cable 2 which is passed through the cable screw connection 7, 8, 9 and the handle 6, is first stripped to a length which is somewhat greater than that of the distributor 5. Then the individual non-stripped strands 4 are inserted into the associated channels 27 up to the stop on the stop collars 29 in accordance with the respective connection configuration.
  • the diameter of the channels 27 is slightly smaller than the outer diameter of the individual strands 4, so that with the aid of the insertion funnel 27 and the resilient outer parts 33, the strands 4 are already slightly clamped in the clamping region 24 of the distributor 5, as a result of which the desired position of the strands is without additional measures are secured and thus further assembly is made considerably easier.
  • the distribution piece 5 is pressed into the grip piece 6, the cooperating conical surfaces 25, 26 creating a radial force component which ensures the necessary clamping of the strands 4 in the clamping area 24.
  • the cable gland 7, 8, 9 is then mounted in the cable-side section 17 of the handle 6.
  • the selected angle of inclination of the conical surfaces 25, 26 are small enough, on the one hand, that self-locking of the assembled parts 5, 6 is ensured in the plastic material used, as a result of which no additional means or measures for maintaining this plug-in state until subsequent securing by the handle 6 screwed plug-in part 16 are required. On the other hand, these angles are chosen so differently that a minimum total length of the nested parts 5, 6 is reached.
  • the contact carrier 11 is plugged onto the connector 21 of the distributor 5 so that, for the unmistakably correct assignment of clamping elements 13 and strands 14, an invisible coding lug of the contact carrier 11 engages in the coding recess 23 of the connector 21, and then the union nut 15 on the screwed section 18 of the handle 6.
  • the contact skewers 20 penetrate axially into the end regions of the associated stranded wires 35 in such a way that the stranded wires are compressed by radial forces and pressed together with the stranded insulation under high pressure against the inner wall of the channels 27, as a result of which not only a high clamping force but also by cold welding of stranded wires and contact skewers 20 also permanently secure electrical contacting is guaranteed.
  • the described, configured for connecting any stranded cable Suitable cable connectors are characterized by minimal Dimensions, especially in the clamping contact area, a simple one and inexpensive construction as well as a quickly and safely feasible Connector assembly with high-quality clamping contact and easy disassembly for recycling purposes.

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  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

Die Erfindung betrifft einen mehrpoligen Kabelsteckverbinder nach dem Oberbegriff des Anspruches 1, wie er bereits aus der deutschen Gebrauchsmusterschrift DE-U-93 08 457 bekannt ist.
Dieser Steckverbinder zeichnet sich durch ein platzsparendes Klemmverbinderprinzip, eine recyclebare bzw. lös- und wiederverwendbare Klemmkontaktierung sowie einen einfachen Anschluß von Kabeln mit in einer definierten Reihenfolge angeordneten und bestimmten Steckkontakten zuzuordnenden Einzellitzen aus, bei dem nur eine Litze dem zugehörigen Litzenführungskanal des Verteilstücks zugeführt werden muß und beim Einschieben des Kabels die Zuordnung aller übrigen Einzellitzen zu den entsprechenden Steckkontakten automatisch erfolgt. Eine freie Zuordnung bzw. die Verwendung des bekannten Steckverbinders für beliebig konfigurierte Litzenkabel ist jedoch bei diesem Steckverbinder nicht möglich.
Außerdem sind zur Erzeugung der zum Eindrücken der Kontaktspieße in die Litzenadern erforderlichen Litzenhaltekraft entweder Abwinkelungen der Litzenführungskanäle oder besondere zusätzliche Klemmittel erforderlich, wodurch ein erheblicher Mehraufwand in Aufbau und Montage sowie eine Vergrößerung der Abmessungen bedingt ist, welche den Vorteil der platzsparenden Axialkontaktierung nicht oder nur geringfügig zum tragen kommen läßt.
Überdies ist bei Verwendung von Abwinkelungen der Känale nicht immer sichergestellt, daß sich bei montierter Kabelverschraubung die steckseitigen Litzenenden auch tatsächlich an den Sollstellen befinden (z.B. an Spritzwänden anliegen) und die Haltekraft groß genug ist, um das vollständige axiale Eindringen der Kontaktspieße und damit einen dauerhaft sicheren Kontakt durch Kaltverschweißung zu gewährleisten. The invention relates to a multi-pole cable connector according to the preamble of claim 1, as is already known from the German utility model DE-U-93 08 457.
This connector is characterized by a space-saving clamp connector principle, a recyclable or releasable and reusable clamp contact as well as a simple connection of cables with individual strands arranged in a defined order and to be assigned to specific plug contacts, in which only one strand has to be fed to the associated strand guide channel of the distributor and when the cable is inserted, all other individual strands are automatically assigned to the corresponding plug contacts. A free assignment or the use of the known connector for any configured stranded wire is not possible with this connector.
In addition, in order to generate the strand holding force required to press the contact spikes into the stranded wires, either angling of the strand guide channels or special additional clamping means are required, as a result of which a considerable additional outlay in terms of construction and assembly and an increase in dimensions are required, which do not or only marginally benefit from the space-saving axial contact comes to fruition.
In addition, when using angled channels, it is not always ensured that when the cable gland is installed, the plug ends of the wires are actually at the desired positions (e.g. against splash walls) and that the holding force is large enough to allow the contact spikes to penetrate completely axially and thus permanently To ensure safe contact through cold welding.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Kabelsteckverbinder der eingangs genannten Art für den Anschluß beliebig konfigurierter Litzenkabel zu schaffen, bei dem die Mittel zur Klemmkontaktierung geringstmögliche Abmessungen aufweisen, möglichst einfach und kostengünstig aufgebaut sowie unkompliziert handhabbar sind und eine dauerhaft sichere Kontaktgabe gewährleisten.The invention is therefore based on the object of a cable connector of the type mentioned at the beginning for connecting any configured stranded cable to create, in which the means for clamping contact as low as possible Have dimensions, as simple and inexpensive as possible as well as being easy to use and permanently safe Ensure contact.

Diese Aufgabe ist durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.
Bei der Montage des Kabelsteckverbinders werden die durch den Kabelaufnahmeteil hindurchgeführten Einzellitzen in die zugehörigen rohrförmigen Kanäle des Verteilstücks eingebracht und dieses in den steckseitigen Abschnitt des Griffstücks hineingesteckt, wofür beliebig konfigurierte Litzenkabel verwendet werden können. Bei diesem Vorgang liegen die steckseitigen Enden der Einzellitzen schon alleine durch das gegen sie gedrückte Verteilstück in Soll-Lage an dem jeweiligen Anschlag am steckseitigen Ende der Kanäle an. Aufgrund der zusammenwirkenden konischen Flächen von Verteil- und Griffstück werden die durch die Längsschlitze federnd ausgebildeten äußeren Wandteile zusammengepreßt und die Einzellitzen dadurch in den Kanälen derart in Sollage festgeklemmt, daß beim anschließenden Zusammenfügen des Steckteils und des Griffstücks mit eingebrachtem Verteilstück die Kontaktspieße vollständig in die Litzenseelen eindringen können, wodurch eine dauerhaft sichere Kontaktierung erreicht wird.
Die Neigungswinkel der zusammenwirkenden konischen Flächen können gleich sein. Eine kürzere Ausführung mit definierter Klemmwirkung bei an einem Anschlag anliegendem Verteilstück ist dadurch realisierbar, daß der Neigungswinkel zur Achse bei der Innenkontur des Griffstücks größer ist als derjenige der Mantelfläche des Klemmbereichs des Verteilstücks. Selbstverständlich sind auch Lösungen möglich, bei dem z.B. die Innenkontur zylindrisch oder nur teilweise konisch ist.
Die erfindungsgemäß aufgebaute Klemmeinrichtung ist nicht nur hochwirksam und den jeweiligen Anforderungen an die Klemmkraft durch entsprechende Abmessungen der Kanäle und/oder der konischen Flächen in einfachster Weise anpaßbar, sondern insbesondere auch extrem platzsparend, weil weder eine Abwinkelung der Kanäle noch zusätzliche Klemmmittel wie Schrauben, Federn o.ä. erforderlich sind, sodaß die Außenabmessungen im wesentlichen lediglich von Anzahl, Durchmesser und Abstand der Kanäle bestimmt sind. This object is achieved by the characterizing features of claim 1.
When assembling the cable connector, the individual strands passed through the cable receiving part are inserted into the associated tubular channels of the distribution piece and this is inserted into the plug-in section of the grip piece, for which purpose stranded cables of any configuration can be used. In this process, the ends of the individual strands on the plug side are in contact with the respective stop at the plug-side end of the channels simply by the distribution piece pressed against them in the desired position. Due to the interacting conical surfaces of the distribution and grip piece, the outer wall parts, which are resiliently formed by the longitudinal slots, are pressed together and the individual strands are thereby clamped in the channels in such a way that when the plug-in part and the grip piece with the inserted distribution piece are subsequently joined together, the contact skewers are completely inserted into the stranded wires can penetrate, whereby a permanently secure contact is achieved.
The angles of inclination of the interacting conical surfaces can be the same. A shorter version with a defined clamping effect when the distribution piece is in contact with a stop can be realized in that the angle of inclination to the axis in the inner contour of the grip piece is greater than that of the outer surface of the clamping area of the distribution piece. Of course, solutions are also possible in which, for example, the inner contour is cylindrical or only partially conical.
The clamping device constructed according to the invention is not only highly effective and can be adapted in a very simple manner to the respective requirements of the clamping force by appropriate dimensions of the channels and / or the conical surfaces, but in particular also extremely space-saving because neither angling of the channels nor additional clamping means such as screws, springs etc. are required so that the outer dimensions are essentially determined only by the number, diameter and spacing of the channels.

Durch den einfachen und unkomplizierten Aufbau ist der Kabelsteckverbinder auch besonders kostengünstig und einfach montierbar.The cable connector is simple and uncomplicated also particularly inexpensive and easy to install.

Vorteilhafte Ausführungen bzw. Ausgestaltungen des Kabelsteckverbinders nach Anspruch 1 sind in den Unteransprüchen angegeben.
So sind die die Kanäle umgebenden äußeren Wandteile, deren Außenkontur konisch verläuft, durch die gemäß Anspruch 2 vorgesehenen zusätzlichen Schlitze in Kanalzwischenwänden erheblich elastischer, wodurch die für eine bestimmte radial wirksame Klemmkraft aufzubringenden axiale Einsteckkraft wesentlich geringer ist. Selbstverständlich ist es auch möglich, diese Wirkung durch anders verlaufende oder zusätzliche Schlitze (z.B. mehrere Schlitze zwischen Kanal und Außenwand) bzw. Ausnehmungen oder durch Wahl eines entsprechend elastischen Materials für das Verteilstück zu erzeugen, wobei darauf zu achten ist, daß die Kanalwandungen noch stark genug für eine wirksame radiale Litzenklemmung durch axial eindringende Kontaktspieße sind.Advantageous embodiments of the cable connector according to claim 1 are specified in the subclaims.
Thus, the outer wall parts surrounding the channels, the outer contour of which is tapered, are considerably more elastic due to the additional slots provided in the intermediate channel walls, as a result of which the axial insertion force to be applied for a certain radially effective clamping force is substantially lower. Of course, it is also possible to produce this effect by means of differently extending or additional slots (for example several slots between the channel and the outer wall) or recesses or by choosing an appropriately elastic material for the distribution piece, care being taken that the channel walls are still strong are enough for effective radial wire clamping by axially penetrating contact spikes.

Durch die Bemessung der Kanäle ist bereits vor der eigentlichen Klemmung durch die zusammenwirkenden konischen Flächen bei in das Griffstück eingestecktem Verteilstück eine Vorfixierung der eingeschobenen Einzellitzen erreicht, die auch bei unbeabsichtigten geringfügigen Zugkräften am Kabel bzw. an einzelnen Litzen oder nicht gieichmäßigem, etwa ruckartigem Einstecken des Verteilstücks in das Griffstück das Anliegen der steckseitigen Litzenstirnflächen an den Anschlägen und somit ihre Soll-Lage für die radiale Klemmung sicherstellt. Der kleinste Kanaldurchmesser und damit die größte Vorfixierkraft ergibt sich hierbei, wenn bei der durch die Schlitze und/oder das Material des Verteilstücks gegebenen Elastizität die Einzellitzen noch ohne zusätzliche Maßnahmen (wie z.B. Aufbiegen) in die Kanäle einschiebbar sind. Durch diese vorteilhafte Ausgestaltung ist eine zusätzliche Erleichterung der Steckverbindermontage erreicht.The dimensioning of the channels is already in front the actual clamping through the interacting conical surfaces if the distributor is inserted into the handle, pre-fix the inserted individual strands reached, even with unintentional minor Tensile forces on the cable or on individual strands or not equitable, approximately jerky insertion of the distribution piece in the Grip the contact of the mating end faces on the stops and thus ensures their target position for radial clamping. The smallest channel diameter and thus the greatest pre-fixing force here, if the through the slots and / or the material of the Given individual elasticity, the individual strands still without additional Measures (such as bending) can be inserted into the channels. By this advantageous embodiment is an additional relief Connector assembly reached.

Eine Minimierung der Kanaldurchmesser und Erhöhung der Vorfixierkraft und/oder eine leichtere Einführbarkeit der Litzen in die Kanäle ist gemäß Anspruch 3 dadurch erzielbar, daß die Kanäle Einführungstrichter aufweisen. Ein Zurückweichen der Einzellitzen in den Kanälen aus der Sollstellung ist damit in der Praxis wirksam auszuschließen. Minimizing the channel diameter and increasing the pre-fixing force and / or an easier insertion of the strands into the channels is according to Claim 3 achievable in that the channels have insertion funnels. A retreat of the individual strands in the channels from the target position can thus be effectively excluded in practice.

Eine weitere Montageerleichterung ist durch die Merkmale des Anspruches 4 erreicht, weil bei einem derart ausgebildeten Kabelsteckverbinder das Verteilstück nicht durch eine besondere Maßnahme im Griffstück gehalten werden muß, wenn es mit dem Steckteil zusammengesteckt wird. Vielmehr hält es darin von selbst, bis es nach dem weiteren Montageschritt des Zusammenschraubens von Griffstück und Steckteil endgültig fixiert wird.A further ease of assembly is due to the features of claim 4 achieved because with such a trained cable connector Distribution piece not held in the handle by a special measure must be when it is plugged together with the plug part. Much more holds it in there by itself until after the further assembly step of screwing it together is finally fixed by the handle and plug-in part.

Die Mantelflächen des Klemmbereichs des Verteilstücks und die damit zusammenwirkenden Innenflächen des steckseitigen Abschnitts des Griffstükkes können kegelförmig sein. Durch eine mehrflächige Ausbildung gemäß Anspruch 5 ist demgegenüber ohne Mehraufwand der Vorteil einer Verdrehsicherung und zugleich die Möglichkeit einer einfachen Codierung gegeben (z.B. im Querschnitt ein unregelmäßiges Vieleck), was insbesondere bei einer maschinellen Steckermontage von großer Bedeutung sein kann. Außerdem ist der Kabelsteckverbinder bei einer Winkelausführung entsprechend der Anzahl der Mantelflächen den verschiedenen Winkellagen an den zugehörigen festen Gegensteckverbindern ausrichtbar.The outer surfaces of the clamping area of the distributor and the interacting with it Inner surfaces of the mating portion of the handle can be conical. Through a multi-surface training according to claim 5, on the other hand, is the advantage of an anti-rotation device without additional effort and at the same time given the possibility of simple coding (e.g. an irregular polygon in cross-section), which is particularly the case with mechanical connector assembly can be of great importance. Moreover the cable connector is appropriate for an angle version the number of lateral surfaces the different angular positions on the associated fixed mating connectors can be aligned.

Bei einer Ausführung der Kabelaufnahme gemäß Anspruch 6 dient das Griffstück in vorteilhafter Weise zugleich als Handgriff bei der Montage des Kabelsteckverbinders, zur Aufnahme und Klemmung des Verteilstücks, als wasserdichte Kabeleinführung und zur mechanisch/elektrischen Verbindung mit dem Steckteil und ist somit besonders kostengünstig.In a version of the cable holder according to claim 6, the handle is used in an advantageous manner as a handle during the assembly of the Cable connector, for receiving and clamping the distributor, as waterproof cable entry and for mechanical / electrical connection with the plug-in part and is therefore particularly inexpensive.

Zur Herstellung der Klemmkontaktierung muß der Kontaktträger mit den darin fixierten Kontaktelementen gegen die in dem Verteilstück gehaltenen Litzen gedrückt werden. Dazu ist es besonders einfach, gemäß Anspruch 7 eine Überwurfmutter vorzusehen, die beim Aufschrauben auf ein Außengewinde des Verteilstücks zugleich dieses gegen den Kontaktträger drückt und beide Teile aneinander lösbar befestigt. Für eine maschinelle Herstellung der mechanischen Verbindung von Kontaktträger und Verteilstück ist es vorteilhaft, anstatt der Überwurfmutter eine Schnapp- bzw. Rastverbindung zu verwenden.To produce the clamp contact, the contact carrier must be connected to the contact elements fixed therein against those held in the distributor Strands are pressed. For this purpose, it is particularly simple, according to claim 7 to provide a union nut which is screwed onto an external thread of the distributor also presses it against the contact carrier and both parts releasably attached to each other. For machine production the mechanical connection of contact carrier and distributor it is advantageous to use a snap or snap connection instead of the union nut to use.

Bei einer besonders vorteilhaften Ausbildung dieser beiden Teile ist nach Anspruch 8 eine Codiereinrichtung vorgesehen, die sicherstellt, daß sie nur bei richtiger gegenseitiger Zuordnung von Kontaktelementen und Kanälen zusammenschraubbar sind. In a particularly advantageous embodiment of these two parts is after Claim 8 provided a coding device that ensures that it only with correct mutual assignment of contact elements and channels can be screwed together.

Durch eine Ausführung des Verteilstücks des erfindungsgemäßen Kabelsteckverbinders nach Anspruch 9 ist sowohl eine besonders kostengünstige Herstellung ermöglicht als auch eine optimale Abstimmung zwischen der Elastizität des gewählten Kunststoffs und der Zahl sowie den Abmessungen der Schlitze, um damit die gewünschte Vorfixierung und Klemmwirkung zu erzielen.By designing the distributor of the cable connector according to the invention according to claim 9 is both a particularly inexpensive manufacture enables as well as an optimal coordination between the Elasticity of the chosen plastic and the number as well as the dimensions of the slots in order to achieve the desired pre-fixation and clamping effect achieve.

Eine Ausbildung des Verteilstücks gemäß Anspruch 10 stellt sicher, daß auch bei sehr dünnen Litzenadern und unabhängig von der Neigung der Kanäle im Klemmbereich eine optimale zentrisch-axiale Kontaktierung mit den damit fluchtenden Kontaktelementen erzielbar ist.An embodiment of the distribution piece according to claim 10 ensures that even with very thin stranded wires and regardless of the inclination of the Channels in the clamping area with an optimal centric-axial contact the contact elements aligned therewith can be achieved.

In den Ansprüchen 11 und 12 sind zwei alternative vorteilhafte Ausführungen des Anschlages für die einzelnen Litzen angegeben, die sich insbesondere bei der Fertiung gemäß Anspruch 10 ohne Mehrkosten herstellen lassen und die gewährleisten, daß alle Litzen bei der Einführung in die Kanäle des Verteilstücks die Soll-Lage einnehmen, in der die Kontaktspieße voll in die Litzenadern eindringen, damit die maximale radiale Klemmkraft und mithin einen dauerhaft funktionierenden Kontakt erzeugen.In claims 11 and 12 are two alternative advantageous designs of the stop indicated for the individual strands, which are particularly in the manufacture according to claim 10 can be produced at no additional cost and ensure that all strands are inserted into the channels of the distributor take the target position in which the contact skewers are full penetrate into the stranded wires so that the maximum radial clamping force and thus create a permanently functioning contact.

Die Erfindung wird nachfolgend in den Figuren noch anhand eines Ausführungsbeispieles näher erläutert. Es zeigen:

Figur 1 -
eine teilweise geschnittene seitliche Ansicht des erfindungsgemäßen Kabelsteckverbinders mit angeschlossenem Litzenkabel und
Figur 2 -
eine perspektivische Ansicht des Verteilstücks in vergrößertem Maßstab.
The invention is explained in more detail below in the figures using an exemplary embodiment. Show it:
Figure 1 -
a partially sectioned side view of the cable connector according to the invention with attached stranded wire and
Figure 2 -
a perspective view of the distributor on an enlarged scale.

Der vierpolige Kabelsteckverbinder zum Anschluß eines Litzenkabels 2 mit vier einzelnen, von einem Schutzmantel 3 umhüllten Litzen 4 besteht aus einem Verteilstück 5 zur Aufnahme der Litzen 4, einer aus einem Griffstück 6 und einer Kabelverschraubung mit Dichtring 7, Federkäfig 8 und Druckschraube 9 aufgebauten Kabelaufnahme 10 sowie einem aus einem Kontaktträger 11 mit in Kontaktkammern 12 angeordneten Kontaktelementen 13, einer ersten Überwurfmutter 14 zur Befestigung an einem nicht dargestellten Gegensteckverbinder und einer zweiten Überwurfmutter 15 zum Befestigen am Verteilstück 5 gebildeten Steckteil 16. Das Griffstück 6 weist an einem kabelseitigen Abschnitt 17 ein Innengewinde zum Einschrauben der Druckschraube 9 und auf einem steckseitigen Abschnitt 18 ein Außengewinde zum Aufschrauben der zweiten Überwurfmutter 15 auf. Die Kontaktelemente 13 bestehen jeweils aus einer Steckbuchse 19 und einem einstückig angeformten kabelseitigen Kontaktspieß 20, dessen Durchmesser kleiner ist als derjenige der Litzenadern 35. Das Verteilstück 5 weist steckseitig einen Stutzen 21 auf, mit dem es beim montierten Kabelsteckverbinder in eine angepaßte Ausnehmung 22 des Kontaktträgers 11 eingeschoben ist. Zum unverwechselbar richtigen Zusammenfügen von Verteilstück 5 und Kontaktträger 11 ist am Stutzen 21 eine Codierausnehmung 23 vorgesehen, in die bei richtiger Steckermontage eine entsprechend ausgebildete Codiernase des Kontaktträgers 11 eingreift.
Ein kabelseitiges Endteil 24 des Verteilstücks 5 ist im Querschnitt als Achteck ausgebildet, wobei die acht ebenen Mantelflächen 25 sich zum freien Ende hin konisch verjüngen. Die Innenkontur 26 des steckseitigen Abschnitts 18 des Griffstücks 6 ist in ihrer Form der Außenkontur des kabelseitigen Endteils 24 des Verteilstücks 5 angepaßt, wobei der Neigungswinkel der konischen Verjüngung der Innenflächen etwa 5° und derjenige der korrespondierenden Mantelflächen 25 etwa 1° gegenüber der Achse beträgt.
Das Verteilstück 5 wird von vier achsparallelen Kanälen 27 zur Aufnahme der nicht abisolierten Litzen 4 durchsetzt, die bei montiertem Kabelsteckverbinder mit den Kontaktelementen 13 fluchten. Sie weisen Einführungstrichter 28 auf und enden jeweils an einem ringförmigen Anschlagbund 29, dessen Innendurchmesser kleiner ist als der Litzendurchmesser aber größer als der Durchmesser der Kontaktspieße 20. Die Zwischenwände 30 jeweils zweier Kanäle 27 sowie die gegenüberliegenden Außenwände zwischen den Kanälen 27 und den entsprechenden Mantelflächen 25 weisen Schlitze 31 bzw. 32 auf. Dadurch sind zwei federnde Außenteile 33 gebildet, die das kabelseitige Endteil 24 bei Einwirkung radialer Kräfte als Klemmbereich 24 für die Litzen 4 wirksam machen.
Zwischen dem Klemmbereich 24 und dem Stutzen 21 ist ein Ringbund 34 vorgesehen, dessen Stirnflächen bei montiertem Kabelsteckverbinder an korrespondierenden Stirnflächen des Kontaktträgers 11 und des Griffstücks 6 anliegen.The four-pole cable connector for connecting a stranded cable 2 with four individual strands 4 encased in a protective sheath 3 consists of a distributor 5 for receiving the strands 4, a cable receptacle 10 composed of a handle 6 and a cable screw connection with a sealing ring 7, spring cage 8 and pressure screw 9 and a plug-in part 16 formed from a contact carrier 11 with contact elements 13 arranged in contact chambers 12, a first union nut 14 for attachment to a mating connector (not shown) and a second union nut 15 for attachment to the distributor 5. The handle 6 has an internal thread on a cable-side section 17 to screw in the pressure screw 9 and on a plug-in section 18 an external thread for screwing on the second union nut 15. The contact elements 13 each consist of a socket 19 and an integrally formed cable-side contact spike 20, the diameter of which is smaller than that of the stranded wires 35. The distributor 5 has a connector 21 on the plug side, with which it is in the fitted cable connector in an adapted recess 22 of the contact carrier 11 is inserted. For the unmistakably correct assembly of the distributor 5 and the contact carrier 11, a coding recess 23 is provided on the connecting piece 21, into which a correspondingly designed coding lug of the contact carrier 11 engages when the connector is installed correctly.
A cable-side end part 24 of the distribution piece 5 is designed as an octagon in cross section, the eight flat lateral surfaces 25 tapering conically towards the free end. The shape of the inner contour 26 of the plug-side section 18 of the handle 6 is adapted to the outer contour of the cable-side end part 24 of the distributor 5, the angle of inclination of the conical taper of the inner surfaces being approximately 5 ° and that of the corresponding lateral surfaces 25 approximately 1 ° with respect to the axis.
The distribution piece 5 is penetrated by four axially parallel channels 27 for receiving the non-stripped strands 4, which are aligned with the contact elements 13 when the cable connector is installed. They have insertion funnels 28 and each end at an annular stop collar 29, the inner diameter of which is smaller than the strand diameter but larger than the diameter of the contact spikes 20. The intermediate walls 30 in each case two channels 27 and the opposite outer walls between the channels 27 and the corresponding lateral surfaces 25 have slots 31 and 32, respectively. As a result, two resilient outer parts 33 are formed, which make the cable-side end part 24 effective as a clamping region 24 for the strands 4 when radial forces are applied.
An annular collar 34 is provided between the clamping region 24 and the connecting piece 21, the end faces of which, when the cable plug connector is fitted, bear against corresponding end faces of the contact carrier 11 and of the grip piece 6.

Zur Steckerkonfektionierung wird zunächst das durch die Kabelverschraubung 7, 8, 9 sowie das Griffstück 6 hindurchgeführte Litzenkabel 2 auf einer Länge, die etwas größer ist als die des Verteilstücks 5, abgemantelt. Dann werden die einzelnen nicht abisolierten Litzen 4 entsprechend der jeweiligen Anschlußkonfiguration in die zugehörigen Kanäle 27 bis zum Anschlag an den Anschlagbünden 29 eingesteckt. Der Durchmesser der Kanäle 27 ist etwas geringer als der Außendurchmesser der einzelnen Litzen 4, sodaß mit Hilfe der Einführungstrichter 27 und der federnden Außenteile 33 bereits eine leichte Klemmung der Litzen 4 im Klemmbereich 24 des Verteilstücks 5 erfolgt, wodurch die Soll-Lage der Litzen ohne zusätzliche Maßnahmen gesichert und somit die weitere Montage wesentlich erleichtert ist.
Anschließend wird das Verteilstück 5 in das Griffstück 6 eingedrückt, wobei durch die zusammenwirkenden konischen Flächen 25, 26 eine radiale Kraftkomponente entsteht, die für die erforderliche Klemmung der Litzen 4 im Klemmbereich 24 sorgt. Hierauf wird die Kabelverschraubung 7, 8, 9 im kabelseitigen Abschnitt 17 des Griffstücks 6 montiert.
Die gewählten Neigungswinkel der konischen Flächen 25, 26 sind zum einen klein genug, damit bei dem verwendeten Kunststoffmaterial eine Selbsthemmung der zusammengesteckten Teile 5, 6 gewährleistet ist, wodurch keine zusätzlichen Mittel oder Maßnahmen zur Aufrechterhaltung dieses Steckzustands bis zur nachfolgenden Sicherung durch den auf das Griffstück 6 aufgeschraubten Steckteil 16 erforderlich sind. Zum andern sind diese Winkel so unterschiedlich gewählt, daß eine minimale Gesamtlänge der ineinandergesteckten Teile 5, 6 erreicht ist.
Schließlich wird noch der Kontaktträger 11 auf den Stutzen 21 des Verteilstücks 5 so aufgesteckt, daß zur unverwechselbar richtigen Zuordnung von Klemmelementen 13 und Litzen 14 eine nicht sichtbare Codiernase des Kontaktträgers 11 in die Codierausnehmung 23 des Stutzens 21 eingreift, und anschließend die Überwurfmutter 15 auf den steckseitigen Abschnitt 18 des Griffstücks 6 aufgeschraubt. Dabei dringen die Kontaktspieße 20 derart axial in die Endbereiche der zugehörigen Litzenadern 35 ein, daß die Litzendrähte durch Radialkräfte verdichtet und zusammen mit der Litzenisolierung unter hohem Druck gegen die Innenwand der Kanäle 27 gepreßt werden, wodurch nicht nur eine hohe Klemmkraft sondern durch Kaltverschweißung von Litzendrähten und Kontaktspießen 20 auch eine dauerhaft sichere elektrische Kontaktierung gewährleistet ist. Trotz der hohen, im wesentlichen radial wirkenden Klemmkraft lassen sich nach Abschrauben der zweiten Überwurfmutter 15 die Kontaktelemente mit den damit einstückigen Kontaktspießen leicht aus den Litzen und den Kontaktkammern herausziehen. Der gesamte Kabelsteckverbinder ist damit so aufgebaut, daß alle Teile voneinander trennbar sind. To assemble the connector, the stranded cable 2, which is passed through the cable screw connection 7, 8, 9 and the handle 6, is first stripped to a length which is somewhat greater than that of the distributor 5. Then the individual non-stripped strands 4 are inserted into the associated channels 27 up to the stop on the stop collars 29 in accordance with the respective connection configuration. The diameter of the channels 27 is slightly smaller than the outer diameter of the individual strands 4, so that with the aid of the insertion funnel 27 and the resilient outer parts 33, the strands 4 are already slightly clamped in the clamping region 24 of the distributor 5, as a result of which the desired position of the strands is without additional measures are secured and thus further assembly is made considerably easier.
Subsequently, the distribution piece 5 is pressed into the grip piece 6, the cooperating conical surfaces 25, 26 creating a radial force component which ensures the necessary clamping of the strands 4 in the clamping area 24. The cable gland 7, 8, 9 is then mounted in the cable-side section 17 of the handle 6.
The selected angle of inclination of the conical surfaces 25, 26 are small enough, on the one hand, that self-locking of the assembled parts 5, 6 is ensured in the plastic material used, as a result of which no additional means or measures for maintaining this plug-in state until subsequent securing by the handle 6 screwed plug-in part 16 are required. On the other hand, these angles are chosen so differently that a minimum total length of the nested parts 5, 6 is reached.
Finally, the contact carrier 11 is plugged onto the connector 21 of the distributor 5 so that, for the unmistakably correct assignment of clamping elements 13 and strands 14, an invisible coding lug of the contact carrier 11 engages in the coding recess 23 of the connector 21, and then the union nut 15 on the screwed section 18 of the handle 6. The contact skewers 20 penetrate axially into the end regions of the associated stranded wires 35 in such a way that the stranded wires are compressed by radial forces and pressed together with the stranded insulation under high pressure against the inner wall of the channels 27, as a result of which not only a high clamping force but also by cold welding of stranded wires and contact skewers 20 also permanently secure electrical contacting is guaranteed. Despite the high, essentially radially acting clamping force, after unscrewing the second union nut 15, the contact elements with the contact spikes integral therewith can easily be pulled out of the strands and the contact chambers. The entire cable connector is so constructed that all parts can be separated.

Der beschriebene, für den Anschluß beliebig konfigurierter Litzenkabel geeignete Kabelsteckverbinder zeichnet sich damit insgesamt durch minimale Abmessungen insbesondere im Klemmkontaktierungsbereich, einen einfachen und kostengünstigen Aufbau sowie eine schnell und sicher durchführbare Steckerkonfektionierung mit hohen Ansprüchen genügender Klemmkontaktierung und eine einfache Zerlegbarkeit zu Recyclingzwecken aus.The described, configured for connecting any stranded cable Suitable cable connectors are characterized by minimal Dimensions, especially in the clamping contact area, a simple one and inexpensive construction as well as a quickly and safely feasible Connector assembly with high-quality clamping contact and easy disassembly for recycling purposes.

Claims (12)

  1. Multipole cable plug connector comprising a plug-in part (16) and a cable receiving part (10) which can be connected thereto for connecting a multicore stranded cable (2), whose individual strands (14), for the purpose of contacting in an axial manner their plug-in-side end portions, can be provided by way of the cable-side end regions, formed more specifically as contact pins (20), of the contact elements (13) which are disposed in a contract carrier (11) of the plug-in part, and can be guided as far as a stop individually in tubular channels of a distributor part (5) as far as the contact elements (13) and held, wherein the distributor part (5) is a separate part and a cable-side end part (24) of the distributor part (5) is formed as a clamping region which tapers in a conical manner towards the free end and whose outer contour (25) is tailored to suit an inner contour (26) of the plug-in-side portion (18) of a tubular grip part (6) of the cable receiving part (10), characterised in that the outer wall (33), encompassing each channel (27), of the distributor part (5) comprises at least one longitudinal slit (32).
  2. Cable plug connector according to claim 1, characterised in that the intermediate walls (30) lying between the two channels (27) also comprise at least in parts longitudinal slits (31).
  3. Cable plug connector according to any one of claims 1 or 2, characterised in that the channels (27) comprise on the cable-side in each case an insertion funnel (28).
  4. Cable plug connector according to any one of claims I to 3, characterised in that the angle of inclination of the conical outer surfaces (25) of the clamping region (24) of the distributor part (5) and of the conical inner contour (26) of the plug-in-side portion (18) of the grip part (6) is such that when the distributor part (5) is inserted therein a self-clamping arrangement exists between the grip part (6) and the distributor part (5).
  5. Cable plug connector according to any one of claims 1 to 4, characterised in that the peripheral surface (25) of the clamping region (24) of the distributor part (5) and the inner contour (26), cooperating therewith, of the plug-in-side portion (18) of the grip part (6) comprises a polygonal cross-section.
  6. Cable plug connector according to any one of claims 1 to 5, characterised in that the grip part (6) comprises on the cable side a cable insertion portion (17) into which can be inserted a cable screw connection arrangement consisting of a resilient cage (8) of a seal (7) and a pressure screw (9).
  7. Cable plug connector according to any one of claims 1 to 6, characterised in that the plug-in part (16) and the distributor part (5) can be connected by means of a snap-in or screw connection, more specifically by means of a union nut (15).
  8. Cable plug connector according to any one of claims 1 to 7, characterised in that when the separable connector (1) is assembled the distributor part (5) engages with a coding cut-out (23) in a corresponding coding projection of the plug-in part (16).
  9. Cable plug connector according to any one of claims 1 to 8, characterised in that the distributor part (5) is a synthetic materials injection moulded part.
  10. Cable plug connector according to any one of claims 1 to 9, characterised in that the distributor part (5) comprises a plug-in-side connection piece (21) into which the channels (27) extend in an axial parallel manner.
  11. Cable plug connector according to any one of claims 1 to 9, characterised in that in each case an annular collar (29) is provided as a stop for the individual strands (4) on the plug-in-side end of the channels (27) of the connection piece (21) of the distributor part (5).
  12. Cable plug connector according to any one of claims 1 to 9, characterised in that in each case a thin wall penetratable by contact tips is provided as a stop for the individual strands on the plug-in-side end of the channels of the connection piece of the distributor part.
EP95107061A 1994-05-25 1995-05-10 Multipole cable plug Expired - Lifetime EP0684666B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4418259 1994-05-25
DE4418259A DE4418259C1 (en) 1994-05-25 1994-05-25 Multipole electrical connector for stranded cables

Publications (3)

Publication Number Publication Date
EP0684666A2 EP0684666A2 (en) 1995-11-29
EP0684666A3 EP0684666A3 (en) 1997-05-02
EP0684666B1 true EP0684666B1 (en) 2000-01-26

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ID=6518938

Family Applications (1)

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EP95107061A Expired - Lifetime EP0684666B1 (en) 1994-05-25 1995-05-10 Multipole cable plug

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Country Link
US (1) US5755589A (en)
EP (1) EP0684666B1 (en)
DE (2) DE4418259C1 (en)
DK (1) DK0684666T3 (en)

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Also Published As

Publication number Publication date
US5755589A (en) 1998-05-26
DK0684666T3 (en) 2000-07-03
EP0684666A3 (en) 1997-05-02
DE59507677D1 (en) 2000-03-02
EP0684666A2 (en) 1995-11-29
DE4418259C1 (en) 1995-08-24

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