EP3435494B1 - Connector and use - Google Patents

Connector and use Download PDF

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Publication number
EP3435494B1
EP3435494B1 EP18185747.5A EP18185747A EP3435494B1 EP 3435494 B1 EP3435494 B1 EP 3435494B1 EP 18185747 A EP18185747 A EP 18185747A EP 3435494 B1 EP3435494 B1 EP 3435494B1
Authority
EP
European Patent Office
Prior art keywords
connector
housing
displacement element
contact surface
housing nut
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.)
Active
Application number
EP18185747.5A
Other languages
German (de)
French (fr)
Other versions
EP3435494A1 (en
Inventor
Alexandra Heindl
Michael Quiter
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.)
Yamaichi Electronics Deutschland GmbH
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Yamaichi Electronics Deutschland GmbH
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Publication date
Application filed by Yamaichi Electronics Deutschland GmbH filed Critical Yamaichi Electronics Deutschland GmbH
Publication of EP3435494A1 publication Critical patent/EP3435494A1/en
Application granted granted Critical
Publication of EP3435494B1 publication Critical patent/EP3435494B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/59—Threaded ferrule or bolt operating in a direction parallel to the cable or wire
    • 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
    • H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members

Definitions

  • the invention relates to a connector, in particular a circular connector, for a connector.
  • the strain relief device usually comprises a clamping device made of a metal, by means of which the cable can be clamped to the connector.
  • the clamping device in order to fasten the clamping device to the connector, the clamping device is clamped between a connector nut and a connector sleeve.
  • the connector nut is pushed over the clamping device and screwed to the connector sleeve, the clamping device being pressed against the cable at the same time in such a way that the cable is fixed to the connector.
  • EP 2 099 101 A1 discloses a plug device with a strain relief and a clamping basket therefor, which has radially movable clamping tongues.
  • GB 1 022 501 discloses a cable seal for two-part electrical connectors, one part of which carries at least one contact element and the other part of which has a sleeve made of resilient material within a rigid sleeve, sleeve and sleeve at the end facing away from one part having inclined surfaces on the sides facing one another and in the region of the inclined surfaces carry an intermediate piece, the intermediate piece being formed such that when the two parts are screwed together, the sleeve is subject to a compression pressure in the axial direction.
  • US 4,739,126 A discloses an earth connection device for mounting on a plate, for separating the outer shielding conductor of an electrical cable and for simultaneously fastening the cable to a plate.
  • a connector in particular a round plug, is provided with a connector housing, comprising: a metallic fixing sleeve, having a plurality of clamping fingers, the fixing sleeve being designed to be pushed onto a cable, in particular an associated cable, and a metallic housing nut , wherein the housing nut is formed for sliding over the fixing sleeve and a radially inner one Includes displacement element, and in an operating state of the housing nut, the displacement element displaces the plurality of clamping fingers radially inward such that the plurality of clamping fingers are pressed onto the associated cable, the displacement element being formed from an electrically non-conductive material.
  • the assigned cable is to be understood in particular as the cable on which the housing nut is also arranged.
  • the term “the housing nut comprises a displacement element arranged radially on the inside” means that the displacement element is arranged within the housing nut in the housing nut.
  • the displacement element can be connected to the housing nut.
  • one aspect of the invention relates to one Connector, in particular a round plug, with a connector housing, comprising: a fixing sleeve, having a plurality of clamping fingers, the fixing sleeve being designed to be pushed onto a cable, in particular an associated cable, a displacement element, and a housing nut, the housing nut being able to be pushed on the fixing sleeve is formed and the displacement element is arranged radially on the inside in the housing nut, and in an operating state of the housing nut the displacement element displaces the plurality of clamping fingers radially inwards in such a way that the plurality of clamping fingers are pressed onto the associated cable, the displacement element being made of an electrical non-conductive material is formed.
  • a displacement element made of an electrically non-conductive material substantially completely prevents conductive abrasion. Short circuits and other faults caused by metallic abrasion can therefore be largely avoided. Abrasion may occur, but it is made of a non-metallic material.
  • the housing nut preferably made of a metal or a metal alloy, can first be pushed in an axial direction onto a cable end of an associated cable, in particular a round cable.
  • the cable can be designed to conduct an electrical current and / or to conduct an electrical signal.
  • the axial direction in the direction of the longitudinal axis of the associated cable can be meant, the longitudinal axis meaning the axis which corresponds to the direction of the greatest extension of the cable.
  • the axial direction can also mean a direction in which the housing nut connects to a component of the connector, such as a housing sleeve, preferably made of a metal or Metal alloy, is attachable. If the housing nut and the housing sleeve each have a complementary thread, the housing nut can be screwed to the housing sleeve after attachment.
  • the housing nut can also be connected to the housing sleeve by means of another connection method.
  • the fixing sleeve can be pushed onto the cable end.
  • the fixing sleeve can in particular be made of a metal or a metal alloy.
  • the fixing sleeve can have a plurality of clamping fingers which can be displaced radially inwards. Each clamping finger can have at least one gripping hook that extends inwards in a radial direction.
  • the radial direction can mean a direction that is orthogonal to the axial direction.
  • the gripping hooks can therefore extend in the direction of the cable, the cable being able to be substantially circumferentially surrounded by the plurality of clamping fingers.
  • the fixing sleeve preferably has two clamping fingers, particularly preferably three clamping fingers, most preferably four clamping fingers.
  • the fixing sleeve can also have 5 or more clamping fingers.
  • the cable can be stripped to create an electrically conductive connection between the connector and the cable. This will expose the strands associated with the cable.
  • the strands can then be connected to an associated contact area of a contact element, e.g. B. by soldering, wherein a plurality of contact elements, in particular according to the number of strands, is arranged in the insulator body.
  • a contact element e.g. B. by soldering
  • two half-shells can optionally be arranged in a region around the insulator body, wherein the half-shells can abut one another in such a way that they at least partially surround the insulator body.
  • the half-shells can also at least partially enclose the stripped section of the cable.
  • the housing sleeve can be pushed over the insulator body and the two half-shells.
  • the fixing sleeve can have a stop ring arranged radially on the outside with a projection arranged on the stop ring radially on the outside, the stop ring being able to be pressed onto the housing sleeve when the housing nut and the housing sleeve are connected, and the fixing sleeve is thus clamped between the housing sleeve and the housing nut.
  • the housing nut can be pushed over the fixing sleeve.
  • the housing sleeve can have a recess, the projection of the stop ring being able to be arranged in the recess in such a way that rotation of the housing sleeve relative to the fixing sleeve is prevented in the assembled state. If the housing nut is screwed to the housing sleeve, the housing nut is in an operating state and the assembly process is finished. The housing nut and the housing sleeve can form the connector housing in the connected or screwed state.
  • the plurality of clamping fingers of the fixing sleeve are simultaneously displaced radially inward, so that the plurality of clamping fingers are pressed onto the assigned cable when the housing nut is in the operating state.
  • the majority of the clamping fingers can be displaced by means of a displacement element arranged radially on the inside of the housing nut.
  • the displacement element can exert a force on the plurality of clamping fingers and thereby shift them radially inward, in particular elastically shift them radially inward.
  • the displacement element can be formed as a hollow cylindrical or ring-shaped insert, wherein the displacement element can have a contact surface which is inclined inwards in the radial direction.
  • the plurality of clamping fingers can each have a finger contact surface arranged radially on the outside. In the operating state of the housing nut, the finger contact surfaces can be contacted by the contact surface such that the plurality of clamping fingers are displaced radially inwards.
  • both the housing nut and the plurality of clamping fingers can have an approximately oblique contact or finger contact surface.
  • the contact surface and the finger contact surface can be arranged such that they slide on one another during assembly without tilting.
  • the plurality of clamping fingers can be gradually shifted radially inward during the screwing of the housing nut until the housing nut is finally in the operating state and the plurality of clamping fingers is pressed onto the cable.
  • the gripping hooks By pressing the plurality of clamping fingers onto the cable, the gripping hooks can be pressed into the cable sheath of the cable, so that a force-fitting and / or a form-fitting connection is formed between the gripping hooks and the cable.
  • the connector housing can in particular be formed by the housing nut and the housing sleeve.
  • the displacement element is formed from a non-conductive material, for example from a plastic, such as polyether ether ketone (PEEK).
  • PEEK polyether ether ketone
  • other suitable plastics can also be used to form the displacement element.
  • the material of the displacement element can have a lower hardness than the material from which the fixing sleeve or the plurality of clamping fingers is formed.
  • the insert can be pressed with the housing nut and / or connected by means of a frictional connection.
  • the contact surface of the insert can also have a plurality of contact surface sections, the individual contact surface sections being elastically displaceable radially inwards. If the housing nut is designed with a recess that is complementary to the insert and is arranged radially on the inside, the insert can be locked or clipped onto the housing nut. Alternatively, the displacement element can also be injection-molded radially on the inside of the housing nut.
  • the displacement element preferably has a circumferential contact surface arranged radially on the inside, the contact surface being inclined inwards in the radial direction, and the contact surface making contact with the plurality of clamping fingers in the operating state of the housing nut such that the plurality of clamping fingers is displaced radially inwards.
  • a gradual shifting of the plurality of clamping fingers during the assembly of the connector can be achieved by screwing the housing nut onto a component of the connector, e.g. B. a housing sleeve can be achieved.
  • a housing sleeve can be achieved.
  • the cable is also fixed by means of the plurality of clamping fingers. It is not necessary to provide an additional step for clamping the cable to the connector housing.
  • the displacement element is preferably formed as an insert.
  • the displacement element can consequently be inserted into the housing nut within the housing nut.
  • the insert part can advantageously be produced separately from the housing nut, for example by means of an injection molding process, and then connected to the housing nut, in particular inserted into the housing nut.
  • the housing nut can be made as a turned part.
  • the displacement element and the housing nut are preferably connected by means of a frictional connection.
  • the displacement element is within the Housing nut arranged in the housing nut and frictionally connected to the housing nut.
  • the displacement element can be connected to the inner wall of the housing nut.
  • the displacement element and the housing nut are preferably connected by means of an interference fit.
  • the press fit is an advantageous embodiment of the above-mentioned frictional engagement, the displacement element also being arranged inside the housing nut in the housing nut.
  • additional connecting means such as adhesive.
  • no further work steps are required during assembly.
  • the contact surface preferably has a plurality of contact surface sections, each contact surface section being elastically displaceable radially inwards, and the housing nut having a circumferential recess arranged radially on the inside, the displacement element being latchable in the recess by means of the radially inwardly displaceable contact surface sections.
  • the individual contact surface sections can be spaced apart from one another by means of a plurality of elongate contact surface recesses, the elongate contact surface recesses being able to extend in the axial direction along a region of the displacement element.
  • each individual contact surface section can be elastically displaced radially inward independently of the other contact surface sections.
  • the displacement element can thus be inserted and locked into the recess in the housing nut with little resistance.
  • the recess can be one or more of the Have contact surface sections undercut areas.
  • the displacement element is preferably injection-molded radially on the inside of the housing nut by means of injection molding.
  • the injection molding advantageously represents an alternative manufacturing method for pressing or for a frictional connection.
  • the housing nut preferably has a thread for screwing onto a complementary thread of a housing sleeve of the connector housing.
  • the connector housing can be formed by screwing the housing nut onto the housing sleeve.
  • the screwing represents a simple and proven method for establishing a connection, which is also advantageously detachable. A complex connection by means of a welding or soldering process can thus be avoided.
  • other connection methods can in principle also be provided, such as gluing or locking the housing nut and housing sleeve.
  • the plurality of clamping fingers preferably each have a finger contact surface arranged radially on the outside, the finger contact surface being contacted by the contact surface of the displacement element in the operating state of the housing nut such that the plurality of clamping fingers is displaced radially inwards.
  • the finger contact surface can be inclined outward in the radial direction and can have an inclination angle that is complementary to an inclination angle of the contact surface of the displacement element.
  • the finger contact surface can slide along the contact surface of the displacement element with little resistance, as a result of which the plurality of clamping fingers can be gradually shifted radially inwards.
  • the plurality of clamping fingers are displaced radially inward in such a way that the cable is fixed by the plurality of clamping fingers.
  • the operating state of the housing nut is the connected state of the housing nut and housing sleeve.
  • Each clamping finger preferably has at least one gripping hook, the gripping hook extending radially inwards.
  • the gripping hook In the operating state of the housing nut, the gripping hook can be pressed into the cable sheath of the cable, so that a force-fitting and / or positive connection is formed between the gripping hook and the cable.
  • a tensile force occurring on the cable or on the connector can thereby be transmitted to the fixing sleeve via the gripping hook, the fixing sleeve being clamped between the housing nut and the housing sleeve, as a result of which the tensile force acts on the connector housing and not, for example, at the connection points of the strands with the contact elements.
  • the displacement element is preferably formed from polyether ether ketone (PEEK).
  • PEEK polyether ether ketone
  • other suitable plastics can also be used to form the displacement element.
  • a PEEK displacement element can be easily recognized optically. This makes it easy to check whether the displacement element has already been mounted on the housing nut.
  • the PEEK displacement element can advantageously be produced by means of an injection molding process. The abrasion of such a displacement element is electrically non-conductive and has no effect on the electrical properties of the connector.
  • the connector is preferably a circular plug.
  • PEEK element is provided as a displacement element in a connector described above.
  • Fig. 1 shows a connector 10 in a perspective view, before final assembly.
  • a metallic housing nut 16 and a metallic fixing sleeve 18 are pushed onto an end of a cable 12, which in the present case is formed as a round cable, in an axial direction 14.
  • the housing nut 16 and the fixing sleeve 18 are essentially hollow-cylindrical and each enclose the cable 12 in the circumferential direction.
  • the connector 10 also has an insulator body 20, having a plurality of contact elements (not shown), the number of contact elements particularly corresponding to the number of strands (not shown) of the cable 12.
  • the plurality of contact elements are electrically conductive and each have at least one contact area (not shown).
  • the exposed strands of the cable 12 are each with the assigned contact area of a contact element connected, in the present case the strands are soldered to the contact areas.
  • the cable 12 can be designed to conduct an electrical current and / or to conduct an electrical signal.
  • the housing nut 16 is designed to be screwed to a metallic housing sleeve 22.
  • both the housing nut 16 and the housing sleeve 22 each have a thread 24.
  • the housing nut 16 and the housing sleeve 22 also have two tool recesses 26 on their circumference.
  • a tool such as an open-ended wrench, can be attached to the tool recesses 26 to apply a force.
  • the housing nut 16 is pushed over the fixing sleeve 18 during assembly and then screwed to the housing sleeve 22.
  • the fixing sleeve 18 has a plurality of clamping fingers 28, the plurality of clamping fingers 28 being displaceable radially inwards.
  • the displacement of the plurality of clamping fingers 28 takes place simultaneously with the screwing of the housing nut 16 to the housing sleeve 22. This means that in the operating state of the housing nut 16 the plurality of clamping fingers 28 are pressed onto the associated cable 12, the operating state of the housing nut 16 being the screwed state of Housing nut 16 and housing sleeve 22 is.
  • the displacement of the plurality of clamping fingers 28 takes place by means of a displacement element arranged radially on the inside of the housing nut 16. The displacement element is not shown here and is shown and explained in detail in the following figures.
  • each clamping finger 28 has a plurality of gripping hooks 30 which extend inwards in a radial direction 32 in the direction of the cable 12.
  • the gripping hooks 30 are pressed onto the cable 12 in such a way that a tensile force that occurs on the cable 12 or on the connector 10 is applied to the connector housing 42 via the gripping hooks 30 (see Fig. 2 ) is transmitted.
  • the fixing sleeve 18 also has a circumferential, radially outer stop ring 34 with a radially outer stop ring 34 Projection 36 on.
  • the insulator body 20 is also surrounded by two half-shells 38, the half-shells 38 abutting one another in such a way that they enclose the insulator body 20 in the circumferential direction at least in regions.
  • Fig. 2 shows the connector 10 in the assembled state.
  • the housing nut 16 is in the operating state.
  • the two half shells 38 (not shown in Fig. 2 ) and in some areas via the fixing sleeve 18 (not shown in Fig. 2 ) the housing sleeve 22 is pushed.
  • the area of the fixing sleeve 18 enclosed by the housing sleeve 22 extends to the stop ring 34 (not shown in FIG Fig. 2 ), the housing sleeve 22 having a recess 40 (not shown in FIG Fig. 2 ), and the projection 36 (not shown in FIG Fig. 2 ) of the stop ring 34 is arranged in the recess 40 such that twisting of the housing sleeve 22 relative to the fixing sleeve 18 is prevented.
  • the housing nut 16 is pushed over the fixing sleeve 18 and screwed to the housing sleeve 22 by means of the mutually complementary threads 24.
  • the housing nut 16 and the housing sleeve 22 in the present case form the connector housing 42.
  • the fixing sleeve 18 is arranged between the housing nut 16 and the housing sleeve 22 and fixed by means of the screw connection such that a tensile force that occurs can be transmitted to the connector housing 42 via the gripping hooks 30.
  • Fig. 3 shows a first embodiment of a housing nut 16, the displacement element 44 and the fixing sleeve 18 in a sectional view.
  • the displacement element 44 is arranged on the housing nut 16 radially on the inside and has a contact surface 46 arranged radially on the inside, the contact surface 46 being set at a predetermined angle, so that the contact surface tilts inwards in the radial direction.
  • the plurality of clamping fingers 28 are contacted such that the plurality of clamping fingers 28 are displaced radially inward.
  • Each clamping finger 28 has in each case a finger contact surface 48 arranged radially on the outside, the finger contact surface 48 being inclined in the radial direction outward complementarily to the predetermined angle of the contact surface 46.
  • each finger contact surface 48 can slide on the contact surface 46 of the displacement element 44 with little resistance during the screwing of the housing nut 16 and the housing sleeve 22, as a result of which the plurality of clamping fingers 28 gradually moves radially inward until the plurality of clamping fingers 28 on the assigned cable in the operating state of the housing nut 16 12 is pressed.
  • the displacement element 44 is formed as an insert and is pressed with the housing nut 16.
  • the displacement element 44 is formed from an electrically non-conductive material, in the present case polyether ether ketone (PEEK).
  • PEEK polyether ether ketone
  • the material of the plurality of clamping fingers 28 rubs on PEEK and not, for example, metal on metal. This means that any chips or abrasion that may occur during assembly are non-conductive and have no influence on the electrical properties of the connector.
  • the housing nut 16 has an end ring 50.
  • the end ring 50 is formed as a protrusion extending inward in the radial direction 32.
  • the end ring 50 is preferably formed at the axially rear end of the housing nut 16.
  • the closure ring 50 forms a positive connection with the displacement element 44, as a result of which the displacement element 44 is prevented from slipping while the housing nut 16 is screwed onto the housing sleeve 22. is secured in particular in the axial direction 14.
  • the displacement element 44 can alternatively also be injection molded radially on the inside of the housing nut 16 and the connecting ring 50.
  • the housing nut 16, having the end ring 50 is produced here by means of a turning process.
  • the displacement element 44 is thin-walled.
  • the displacement element 44 can thus be pressed into standard housing nuts.
  • the contact surface 46 of the displacement element 44 has a plurality of contact surface sections 52, wherein each contact surface section 52 is elastically displaceable radially inwards.
  • the individual contact surface sections 52 are spaced apart from one another by means of a plurality of slots 56 or elongated contact surface recesses.
  • the slots 56 extend in the axial direction 14 along a portion of the displacement element 44.
  • the housing nut 16 has a recess 54 arranged radially on the inside, the recess 54 being dimensioned such that the displacement element 44 can be inserted into the recess 54 by pressing.
  • the recess 54 also has a region 58 that can be undercut by the contact surface sections 52.
  • the contact surface sections 52 are displaced radially inwards until the displacement element 44 is arranged in the recess 54. There, the contact surface sections 52 resiliently spring back into the original position, as a result of which the contact surface sections 52 undercut the undercut region 58 and the displacement element 44 is thereby locked in the recess 54.
  • Fig. 7 shows a sectional view of a further embodiment.
  • the present displacement element 44 is thin-walled and has an approximately conical shape that is inclined radially inwards.
  • the recess 54 of the housing nut 16 is with an inclination complementary thereto and has the undercut region 58.
  • the displacement element 44 has a circumferential, radially outer projection 60, as a result of which the displacement element 44 is locked in the undercut region 58 after being pressed in by means of the projection 60. Thanks to its conical shape, the displacement element 44 can be used as a contact surface 46 along the entire axial extent.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

Die Erfindung betrifft einen Verbinder, insbesondere einen Rundstecker, für einen Steckverbinder.The invention relates to a connector, in particular a circular connector, for a connector.

Herkömmliche Steckverbinder weisen zum Schutz vor einer Zugbelastung an einer elektrisch leitfähigen Verbindung zwischen einem Bauteil des Steckverbinders und einem zugeordneten Kabel, z.B. zwischen einem Isolatorkörper des Steckverbinders und den freigelegten Litzen des Kabels, in der Regel eine Zugentlastungsvorrichtung auf. Die Zugentlastungsvorrichtung umfasst üblicherweise eine Klemmvorrichtung aus einem Metall, mittels der das Kabel an dem Steckverbinder festklemmbar ist.Conventional connectors have protection against a tensile load on an electrically conductive connection between a component of the connector and an associated cable, e.g. between an insulator body of the connector and the exposed strands of the cable, usually a strain relief device. The strain relief device usually comprises a clamping device made of a metal, by means of which the cable can be clamped to the connector.

Herkömmlicherweise wird zum Befestigen der Klemmvorrichtung am Steckverbinder die Klemmvorrichtung zwischen einer Steckverbinder-Mutter und einer Steckerhülse eingespannt. Dazu wird die Steckverbinder-Mutter über die Klemmvorrichtung geschoben und mit der Steckerhülse verschraubt, wobei gleichzeitig die Klemmvorrichtung derart an das Kabel gepresst wird, dass das Kabel an dem Steckverbinder fixiert ist.Conventionally, in order to fasten the clamping device to the connector, the clamping device is clamped between a connector nut and a connector sleeve. For this purpose, the connector nut is pushed over the clamping device and screwed to the connector sleeve, the clamping device being pressed against the cable at the same time in such a way that the cable is fixed to the connector.

Während des Verschraubens der Steckverbinder-Mutter bewegt sich eine radial innere Oberfläche der Steckverbinder-Mutter gegen eine radial äußere Oberfläche der Klemmvorrichtung. An den Kontaktpunkten der beiden Oberflächen entstehen daher Reibungskräfte, wodurch ungewollt Metallspäne bzw. ein metallischer Abrieb von der metallischen Steckverbinder-Mutter und/oder der metallischen Klemmvorrichtung abgespant werden können. Diese Metallspäne verbleiben nach der Montage in einem inneren Bereich des Steckverbinders und können im Betrieb des Steckverbinders in Bereichen sein bzw. in Bereiche fallen, die mit einem elektrischen Strom beaufschlagt sind. Aufgrund ihrer elektrischen Leitfähigkeit können die Metallspäne dort z.B. einen Kurzschluss auslösen und so, oder anderweitig, die Funktion der Vorrichtung empfindlich stören. Die Metallspäne können zudem zu rein mechanischen Störungen führen, etwa durch das Blockieren eines Gewindes.During the screwing of the connector nut, a radially inner surface of the connector nut moves against a radially outer surface of the clamping device. Frictional forces therefore arise at the contact points of the two surfaces, as a result of which unwanted metal chips or metallic abrasion can be removed from the metallic connector nut and / or the metallic clamping device. After assembly, these metal chips remain in an inner area of the connector and can be in areas during operation of the connector or fall into areas that are subjected to an electrical current. Because of their electrical conductivity, the metal chips can trigger a short circuit there, for example, and so, or otherwise, severely interfere with the function of the device. The metal shavings can also lead to purely mechanical malfunctions, such as blocking a thread.

EP 2 099 101 A1 offenbart eine Steckvorrichtung mit einer Zugentlastung sowie einen Klemmkorb hierfür, welcher radial bewegliche Klemmzungen aufweist. EP 2 099 101 A1 discloses a plug device with a strain relief and a clamping basket therefor, which has radially movable clamping tongues.

GB 1 022 501 offenbart eine Kabelabdichtung für zweiteilige elektrische Verbinder, deren einer Teil mindestens ein Kontaktelement und deren anderer Teil innerhalb einer starren Hülse eine Muffe aus nachgiebigem Material trägt, wobei Muffe und Hülse an dem dem einen Teil abgekehrten Ende an den einander zugekehrten Seiten Schrägflächen aufweisen und im Bereich der Schrägflächen ein Zwischenstück tragen, wobei das Zwischenstück derart gebildet ist, dass beim Aufeinanderschrauben der beiden Teile die Muffe einem Kompressionsdruck in axialer Richtung unterliegt. GB 1 022 501 discloses a cable seal for two-part electrical connectors, one part of which carries at least one contact element and the other part of which has a sleeve made of resilient material within a rigid sleeve, sleeve and sleeve at the end facing away from one part having inclined surfaces on the sides facing one another and in the region of the inclined surfaces carry an intermediate piece, the intermediate piece being formed such that when the two parts are screwed together, the sleeve is subject to a compression pressure in the axial direction.

US 4 739 126 A offenbart eine Erdungsanschlussvorrichtung zur Montage auf einer Platte, zum Abtrennen des äußeren Abschirmleiters eines elektrischen Kabels und zur gleichzeitigen Befestigung der Kabel an einer Platte. US 4,739,126 A. discloses an earth connection device for mounting on a plate, for separating the outer shielding conductor of an electrical cable and for simultaneously fastening the cable to a plate.

Es ist daher Aufgabe der vorliegenden Erfindung einen Verbinder, insbesondere einen Rundstecker, bereitzustellen, bei dem keinerlei metallischer Abrieb bei der Montage des Steckverbinders an einem Kabel an der Zugentlastungsvorrichtung entsteht.It is therefore an object of the present invention to provide a connector, in particular a circular connector, in which no metallic abrasion occurs when the connector is mounted on a cable on the strain relief device.

Die Aufgabe wird durch einen Verbinder mit den Merkmalen des Anspruchs 1 und durch eine Verwendung mit den Merkmalen des Anspruchs 13 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.The object is achieved by a connector with the features of claim 1 and by a use with the features of claim 13. Advantageous further developments are specified in the subclaims.

Gemäß einem Aspekt der Erfindung wird ein Verbinder, insbesondere ein Rundstecker, mit einem Verbindergehäuse bereitgestellt, aufweisend: eine metallische Fixierungshülse, aufweisend eine Mehrzahl Klemmfinger, wobei die Fixierungshülse zum Aufschieben auf ein Kabel, insbesondere ein zugeordnetes Kabel, gebildet ist, und eine metallische Gehäusemutter, wobei die Gehäusemutter zum Aufschieben über die Fixierungshülse gebildet ist und ein radial innen liegend angeordnetes Verlagerungselement umfasst, und in einem Betriebszustand der Gehäusemutter das Verlagerungselement die Mehrzahl Klemmfinger derart radial nach innen verlagert, dass die Mehrzahl Klemmfinger an das zugeordnete Kabel angepresst ist, wobei das Verlagerungselement aus einem elektrisch nichtleitenden Werkstoff gebildet ist.According to one aspect of the invention, a connector, in particular a round plug, is provided with a connector housing, comprising: a metallic fixing sleeve, having a plurality of clamping fingers, the fixing sleeve being designed to be pushed onto a cable, in particular an associated cable, and a metallic housing nut , wherein the housing nut is formed for sliding over the fixing sleeve and a radially inner one Includes displacement element, and in an operating state of the housing nut, the displacement element displaces the plurality of clamping fingers radially inward such that the plurality of clamping fingers are pressed onto the associated cable, the displacement element being formed from an electrically non-conductive material.

Unter dem zugeordneten Kabel ist insbesondere das Kabel zu verstehen, auf dem auch die Gehäusemutter angeordnet ist. Der Begriff "die Gehäusemutter umfasst ein radial innen liegend angeordnetes Verlagerungselement" bedeutet vorliegend, dass das Verlagerungselement innerhalb der Gehäusemutter in der Gehäusemutter angeordnet ist. Das Verlagerungselement kann dabei mit der Gehäusemutter verbunden sein. In anderen Worten betrifft ein Aspekt der Erfindung einen Verbinder, insbesondere ein Rundstecker, mit einem Verbindergehäuse, aufweisend: eine Fixierungshülse, aufweisend eine Mehrzahl Klemmfinger, wobei die Fixierungshülse zum Aufschieben auf ein Kabel, insbesondere ein zugeordnetes Kabel, gebildet ist, ein Verlagerungselement, und eine Gehäusemutter, wobei die Gehäusemutter zum Aufschieben über die Fixierungshülse gebildet ist und das Verlagerungselement radial innen liegend in der Gehäusemutter angeordnet ist, und in einem Betriebszustand der Gehäusemutter das Verlagerungselement die Mehrzahl Klemmfinger derart radial nach innen verlagert, dass die Mehrzahl Klemmfinger an das zugeordnete Kabel angepresst ist, wobei das Verlagerungselement aus einem elektrisch nichtleitenden Werkstoff gebildet ist.The assigned cable is to be understood in particular as the cable on which the housing nut is also arranged. In the present case, the term “the housing nut comprises a displacement element arranged radially on the inside” means that the displacement element is arranged within the housing nut in the housing nut. The displacement element can be connected to the housing nut. In other words, one aspect of the invention relates to one Connector, in particular a round plug, with a connector housing, comprising: a fixing sleeve, having a plurality of clamping fingers, the fixing sleeve being designed to be pushed onto a cable, in particular an associated cable, a displacement element, and a housing nut, the housing nut being able to be pushed on the fixing sleeve is formed and the displacement element is arranged radially on the inside in the housing nut, and in an operating state of the housing nut the displacement element displaces the plurality of clamping fingers radially inwards in such a way that the plurality of clamping fingers are pressed onto the associated cable, the displacement element being made of an electrical non-conductive material is formed.

Vorteilhafterweise wird durch das Vorsehen eines Verlagerungselements aus einem elektrisch nichtleitenden Werkstoff ein leitfähiger Abrieb im Wesentlichen vollständig unterbunden. Durch metallischen Abrieb verursachte Kurzschlüsse und andere Störungen können daher weitestgehend vermieden werden. Zwar kann Abrieb entstehen, dieser ist jedoch aus nichtmetallischem Werkstoff.Advantageously, the provision of a displacement element made of an electrically non-conductive material substantially completely prevents conductive abrasion. Short circuits and other faults caused by metallic abrasion can therefore be largely avoided. Abrasion may occur, but it is made of a non-metallic material.

Im Folgenden soll ein Aspekt der Erfindung zunächst anhand eines Montagevorgangs des Verbinders auf ein zugehöriges Kabel erläutert werden:
Zur Montage des Verbinders, der als ein Rundstecker gebildet sein kann, kann zunächst die Gehäusemutter, vorzugsweise aus einem Metall oder einer Metalllegierung, in einer axialen Richtung auf ein Kabelende eines zugeordneten Kabels, insbesondere eines Rundkabels, geschoben werden. Das Kabel kann zum Leiten eines elektrischen Stroms und/oder zum Leiten eines elektrischen Signals gebildet sein.In the following, an aspect of the invention will first be explained with reference to an assembly process of the connector on an associated cable:
To assemble the connector, which can be formed as a round plug, the housing nut, preferably made of a metal or a metal alloy, can first be pushed in an axial direction onto a cable end of an associated cable, in particular a round cable. The cable can be designed to conduct an electrical current and / or to conduct an electrical signal.

Mit der axialen Richtung kann in Richtung der Längsachse des zugeordneten Kabels gemeint sein, wobei mit der Längsachse diejenige Achse gemeint ist, die der Richtung der größten Ausdehnung des Kabels entspricht. Mit der axialen Richtung kann auch eine Richtung gemeint sein, in der die Gehäusemutter an ein Bauteil des Verbinders, wie etwa eine Gehäusehülse, vorzugsweise aus einem Metall oder einer Metalllegierung, ansetzbar ist. Weisen die Gehäusemutter sowie die Gehäusehülse jeweils ein zueinander komplementäres Gewinde auf, kann nach dem Ansetzen die Gehäusemutter mit der Gehäusehülse verschraubt werden. Die Gehäusemutter kann aber auch mittels eines anderen Verbindungsverfahrens mit der Gehäusehülse verbunden werden.The axial direction in the direction of the longitudinal axis of the associated cable can be meant, the longitudinal axis meaning the axis which corresponds to the direction of the greatest extension of the cable. The axial direction can also mean a direction in which the housing nut connects to a component of the connector, such as a housing sleeve, preferably made of a metal or Metal alloy, is attachable. If the housing nut and the housing sleeve each have a complementary thread, the housing nut can be screwed to the housing sleeve after attachment. The housing nut can also be connected to the housing sleeve by means of another connection method.

Nach dem Aufschieben der Gehäusemutter auf das Kabelende kann die Fixierungshülse auf das Kabelende geschoben werden. Die Fixierungshülse kann insbesondere aus einem Metall oder einer Metalllegierung gefertigt sein. Die Fixierungshülse kann eine Mehrzahl Klemmfinger aufweisen, die radial nach innen verlagerbar sind. Jeder Klemmfinger kann mindestens einen Greifhaken aufweisen, der sich in einer radialen Richtung nach innen erstreckt. Mit der radialen Richtung kann eine Richtung gemeint sein, die orthogonal zur axialen Richtung verläuft. Die Greifhaken können sich also in Richtung des Kabels erstrecken, wobei das Kabel im Wesentlichen von der Mehrzahl der Klemmfinger umfänglich umgeben sein kann. Bevorzugt weist die Fixierungshülse zwei Klemmfinger, besonders bevorzugt drei Klemmfinger, am meisten bevorzugt vier Klemmfinger auf. Die Fixierungshülse kann aber auch 5 oder mehr Klemmfinger aufweisen.After pushing the housing nut onto the cable end, the fixing sleeve can be pushed onto the cable end. The fixing sleeve can in particular be made of a metal or a metal alloy. The fixing sleeve can have a plurality of clamping fingers which can be displaced radially inwards. Each clamping finger can have at least one gripping hook that extends inwards in a radial direction. The radial direction can mean a direction that is orthogonal to the axial direction. The gripping hooks can therefore extend in the direction of the cable, the cable being able to be substantially circumferentially surrounded by the plurality of clamping fingers. The fixing sleeve preferably has two clamping fingers, particularly preferably three clamping fingers, most preferably four clamping fingers. The fixing sleeve can also have 5 or more clamping fingers.

Zum Herstellen einer elektrisch leitfähigen Verbindung zwischen Verbinder und Kabel kann das Kabel abisoliert werden. Dadurch werden die dem Kabel zugehörigen Litzen freigelegt. Die Litzen können dann jeweils mit einem zugeordneten Kontaktbereich eines Kontaktelements verbunden werden, z. B. durch Verlöten, wobei eine Mehrzahl Kontaktelemente, insbesondere entsprechend der Anzahl der Litzen, im Isolatorkörper angeordnet ist. In einem Bereich um den Isolatorkörper können schließlich optional zwei Halbschalen angeordnet werden, wobei die Halbschalen aneinander derart anliegen können, dass sie den Isolatorkörper zumindest teilweise umfänglich umschließen. Die Halbschalen können auch den abisolierten Abschnitt des Kabels zumindest teilweise umschließen. Über den Isolatorkörper und die beiden Halbschalen kann schließlich die Gehäusehülse geschoben werden.The cable can be stripped to create an electrically conductive connection between the connector and the cable. This will expose the strands associated with the cable. The strands can then be connected to an associated contact area of a contact element, e.g. B. by soldering, wherein a plurality of contact elements, in particular according to the number of strands, is arranged in the insulator body. Finally, two half-shells can optionally be arranged in a region around the insulator body, wherein the half-shells can abut one another in such a way that they at least partially surround the insulator body. The half-shells can also at least partially enclose the stripped section of the cable. Finally, the housing sleeve can be pushed over the insulator body and the two half-shells.

Die Fixierungshülse kann einen radial außen angeordneten Anschlagring mit einem an dem Anschlagring radial außen angeordneten Vorsprung aufweisen, wobei der Anschlagring beim Verbinden von Gehäusemutter und Gehäusehülse an die Gehäusehülse angepresst werden kann und so die Fixierungshülse zwischen der Gehäusehülse und der Gehäusemutter eingespannt ist. Zum Verbinden kann die Gehäusemutter über die Fixierungshülse geschoben werden.The fixing sleeve can have a stop ring arranged radially on the outside with a projection arranged on the stop ring radially on the outside, the stop ring being able to be pressed onto the housing sleeve when the housing nut and the housing sleeve are connected, and the fixing sleeve is thus clamped between the housing sleeve and the housing nut. To connect, the housing nut can be pushed over the fixing sleeve.

Die Gehäusehülse kann eine Ausnehmung aufweisen, wobei der Vorsprung des Anschlagrings derart in der Ausnehmung anordenbar sein kann, dass ein Verdrehen der Gehäusehülse relativ zur Fixierungshülse im montierten Zustand unterbunden ist. Ist die Gehäusemutter mit der Gehäusehülse verschraubt, befindet sich die Gehäusemutter in einem Betriebszustand, und der Montagevorgang ist beendet. Die Gehäusemutter und die Gehäusehülse können im verbundenen bzw. verschraubten Zustand das Verbindergehäuse bilden.The housing sleeve can have a recess, the projection of the stop ring being able to be arranged in the recess in such a way that rotation of the housing sleeve relative to the fixing sleeve is prevented in the assembled state. If the housing nut is screwed to the housing sleeve, the housing nut is in an operating state and the assembly process is finished. The housing nut and the housing sleeve can form the connector housing in the connected or screwed state.

Während des Verschraubens von Gehäusemutter und Gehäusehülse wird gleichzeitig die Mehrzahl Klemmfinger der Fixierungshülse radial nach innen verlagert, so dass die Mehrzahl Klemmfinger im Betriebszustand der Gehäusemutter an das zugeordnete Kabel angepresst ist. Das Verlagern der Mehrzahl Klemmfinger kann mittels eines an der Gehäusemutter radial innen liegend angeordneten Verlagerungselements erfolgen. Insbesondere kann das Verlagerungselement eine Kraft auf die Mehrzahl Klemmfinger ausüben und diese dadurch radial nach innen verlagern, insbesondere elastisch radial nach innen verlagern.During the screwing of the housing nut and housing sleeve, the plurality of clamping fingers of the fixing sleeve are simultaneously displaced radially inward, so that the plurality of clamping fingers are pressed onto the assigned cable when the housing nut is in the operating state. The majority of the clamping fingers can be displaced by means of a displacement element arranged radially on the inside of the housing nut. In particular, the displacement element can exert a force on the plurality of clamping fingers and thereby shift them radially inward, in particular elastically shift them radially inward.

Das Verlagerungselement kann als ein hohlzylindrisches bzw. ringförmiges Einlegeteil gebildet sein, wobei das Verlagerungselement eine in radialer Richtung nach innen geneigte Kontaktfläche aufweisen kann. Komplementär zur Kontaktfläche kann die Mehrzahl Klemmfinger jeweils eine radial außen liegend angeordnete Fingerkontaktfläche aufweisen. Im Betriebszustand der Gehäusemutter können die Fingerkontaktflächen derart von der Kontaktfläche kontaktiert sein, dass die Mehrzahl Klemmfinger radial nach innen verlagert ist.The displacement element can be formed as a hollow cylindrical or ring-shaped insert, wherein the displacement element can have a contact surface which is inclined inwards in the radial direction. Complementary to the contact surface, the plurality of clamping fingers can each have a finger contact surface arranged radially on the outside. In the operating state of the housing nut, the finger contact surfaces can be contacted by the contact surface such that the plurality of clamping fingers are displaced radially inwards.

In anderen Worten können, um während der Montage des Verbinders eine möglichst einfache und widerstandsarme Verlagerung der Mehrzahl Klemmfinger zu gewährleisten, sowohl die Gehäusemutter als auch die Mehrzahl Klemmfinger eine in etwa schräge Kontakt- bzw. Fingerkontaktfläche aufweisen. Die Kontaktfläche und die Fingerkontaktfläche können dabei derart angeordnet sein, dass sie während der Montage aufeinander gleiten, ohne zu verkanten. Dadurch kann während des Verschraubens der Gehäusemutter die Mehrzahl Klemmfinger graduell radial nach innen verlagert werden, bis die Gehäusemutter schließlich im Betriebszustand ist und die Mehrzahl Klemmfinger an das Kabel angepresst ist.In other words, in order to ensure a simple and low-resistance displacement of the plurality of clamping fingers during assembly of the connector, both the housing nut and the plurality of clamping fingers can have an approximately oblique contact or finger contact surface. The contact surface and the finger contact surface can be arranged such that they slide on one another during assembly without tilting. As a result, the plurality of clamping fingers can be gradually shifted radially inward during the screwing of the housing nut until the housing nut is finally in the operating state and the plurality of clamping fingers is pressed onto the cable.

Durch das Anpressen der Mehrzahl Klemmfinger an das Kabel können die Greifhaken in den Kabelmantel des Kabels gepresst werden, so dass eine kraftschlüßige und/oder eine formschlüßige Verbindung zwischen den Greifhaken und dem Kabel gebildet ist.By pressing the plurality of clamping fingers onto the cable, the gripping hooks can be pressed into the cable sheath of the cable, so that a force-fitting and / or a form-fitting connection is formed between the gripping hooks and the cable.

Folglich wirkt bei einer Zugbelastung am Kabel oder am Verbinder die Zugbelastung nicht an den Verbindungsstellen der Litzen, sondern via der Fixierungshülse am Verbindergehäuse. Das Verbindergehäuse kann dabei insbesondere durch die Gehäusemutter und die Gehäusehülse gebildet sein.As a result, when there is a tensile load on the cable or connector, the tensile load does not act on the connection points of the strands, but via the fixing sleeve on the connector housing. The connector housing can in particular be formed by the housing nut and the housing sleeve.

Um während des Gleitens der Kontaktfläche auf der Fingerkontaktfläche ein Entstehen von elektrisch leitfähigen Spänen, d.h. von elektrisch leitfähigem Abrieb, zu verhindern, ist das Verlagerungselement aus einem nichtleitenden Werkstoff gebildet, beispielhaft aus einem Kunststoff, wie etwa Polyetheretherketon (PEEK). Grundsätzlich können zum Bilden des Verlagerungselements auch andere geeignete Kunststoffe Anwendung finden. Sollten bei der Montage dennoch Späne bzw. Abrieb durch das Verlagern der Mehrzahl Klemmfinger entstehen, handelt es sich um Späne bzw. Abrieb aus dem nichtleitenden Werkstoff, der keinerlei Auswirkung auf die elektrischen Eigenschaften des Verbinders hat. Dazu kann der Werkstoff des Verlagerungselements eine geringere Härte aufweisen, als der Werkstoff aus dem die Fixierungshülse bzw. die Mehrzahl Klemmfinger gebildet ist.In order to prevent the formation of electrically conductive chips, ie, electrically conductive abrasion, during the sliding of the contact surface on the finger contact surface, the displacement element is formed from a non-conductive material, for example from a plastic, such as polyether ether ketone (PEEK). In principle, other suitable plastics can also be used to form the displacement element. Should chips or abrasion occur during the assembly due to the displacement of the majority of the clamping fingers, the chips or abrasion are made of the non-conductive material and have no effect on the electrical properties of the connector. For this purpose, the material of the displacement element can have a lower hardness than the material from which the fixing sleeve or the plurality of clamping fingers is formed.

Das Einlegeteil kann mit der Gehäusemutter mittels verpressen und/oder mittels eines Reibschlusses verbunden sein. Die Kontaktfläche des Einlegeteils kann auch eine Mehrzahl Kontaktflächenabschnitte aufweisen, wobei die einzelnen Kontaktflächenabschnitte radial nach innen elastisch verlagerbar sind. Ist die Gehäusemutter mit einer zu dem Einlegeteil komplementären, radial innen liegend angeordneten Ausnehmung ausgebildet, kann das Einlegeteil mit der Gehäusemutter verrastet bzw. verklipst werden. Das Verlagerungselement kann alternativ auch radial innen an die Gehäusemutter angespritzt sein.The insert can be pressed with the housing nut and / or connected by means of a frictional connection. The contact surface of the insert can also have a plurality of contact surface sections, the individual contact surface sections being elastically displaceable radially inwards. If the housing nut is designed with a recess that is complementary to the insert and is arranged radially on the inside, the insert can be locked or clipped onto the housing nut. Alternatively, the displacement element can also be injection-molded radially on the inside of the housing nut.

Vorzugsweise weist das Verlagerungselement eine umlaufende, radial innen liegend angeordnete Kontaktfläche auf, wobei die Kontaktfläche in radialer Richtung nach innen geneigt ist, und wobei die Kontaktfläche im Betriebszustand der Gehäusemutter die Mehrzahl Klemmfinger derart kontaktiert, dass die Mehrzahl Klemmfinger radial nach innen verlagert ist.The displacement element preferably has a circumferential contact surface arranged radially on the inside, the contact surface being inclined inwards in the radial direction, and the contact surface making contact with the plurality of clamping fingers in the operating state of the housing nut such that the plurality of clamping fingers is displaced radially inwards.

Vorteilhafterweise kann mittels der in radialer Richtung nach innen geneigten Kontaktfläche ein graduelles Verlagern der Mehrzahl Klemmfinger während der Montage des Verbinders allein durch das Aufschrauben der Gehäusemutter auf ein Bauteil des Verbinders, z. B. eine Gehäusehülse, erreicht werden. Sobald die Gehäusemutter im Betriebszustand ist, ist auch das Kabel mittels der Mehrzahl Klemmfinger fixiert. Das Vorsehen eines zusätzlichen Arbeitsschritts zum Festklemmen des Kabels am Verbindergehäuse ist nicht notwendig.Advantageously, a gradual shifting of the plurality of clamping fingers during the assembly of the connector can be achieved by screwing the housing nut onto a component of the connector, e.g. B. a housing sleeve can be achieved. As soon as the housing nut is in the operating state, the cable is also fixed by means of the plurality of clamping fingers. It is not necessary to provide an additional step for clamping the cable to the connector housing.

Vorzugsweise ist das Verlagerungselement als Einlegeteil gebildet. Das Verlagerungselement ist folglich innerhalb der Gehäusemutter in die Gehäusemutter einlegbar. Das Einlegeteil kann vorteilhafterweise getrennt von der Gehäusemutter hergestellt, etwa mittels eines Spritzgußverfahrens, und anschließend mit der Gehäusemutter verbunden sein, insbesondere in die Gehäusemutter eingelegt sein. Die Gehäusemutter kann als Drehteil hergestellt sein.The displacement element is preferably formed as an insert. The displacement element can consequently be inserted into the housing nut within the housing nut. The insert part can advantageously be produced separately from the housing nut, for example by means of an injection molding process, and then connected to the housing nut, in particular inserted into the housing nut. The housing nut can be made as a turned part.

Vorzugsweise sind das Verlagerungselement und die Gehäusemutter mittels Reibschluss verbunden. Das Verlagerungselement ist dabei innerhalb der Gehäusemutter in der Gehäusemutter angeordnet und mit der Gehäusemutter reibschlüssig verbunden. Das Verlagerungselement kann dazu mit der Innenwand der Gehäusemutter verbunden sein. Somit sind vorteilhafterweise keine zusätzlichen Verbindungsmittel, wie etwa Klebstoff, oder zusätzliche Arbeitsschritte bei der Montage vorzusehen, wodurch die Herstellungskosten niedrig gehalten werden können.The displacement element and the housing nut are preferably connected by means of a frictional connection. The displacement element is within the Housing nut arranged in the housing nut and frictionally connected to the housing nut. For this purpose, the displacement element can be connected to the inner wall of the housing nut. Thus, advantageously, no additional connecting means, such as adhesive, or additional steps during assembly are to be provided, as a result of which the production costs can be kept low.

Vorzugsweise sind das Verlagerungselement und die Gehäusemutter mittels einer Presspassung verbunden. Die Presspassung ist eine vorteilhafte Ausführungsform des oben genannten Reibschlusses, wobei auch hier das Verlagerungselement innerhalb der Gehäusemutter in der Gehäusemutter angeordnet ist. Beim Presspassen bzw. beim Vorsehen einer sog. Übermaßpassung ist eine reib- bzw. kraftschlüssige Verbindung zwischen dem Verlagerungselement und der Gehäusemutter ohne zusätzliche Verbindungsmittel, wie etwa Klebstoff, möglich. Vorteilhafterweise sind also keine weiteren Arbeitsschritte bei der Montage vorzusehen.The displacement element and the housing nut are preferably connected by means of an interference fit. The press fit is an advantageous embodiment of the above-mentioned frictional engagement, the displacement element also being arranged inside the housing nut in the housing nut. When press-fitting or when providing a so-called oversize fit, a frictional or non-positive connection between the displacement element and the housing nut is possible without additional connecting means, such as adhesive. Advantageously, no further work steps are required during assembly.

Vorzugsweise weist die Kontaktfläche eine Mehrzahl Kontaktflächenabschnitte auf, wobei jeder Kontaktflächenabschnitt radial nach innen elastisch verlagerbar ist, und wobei die Gehäusemutter eine radial innen angeordnete, umlaufende Ausnehmung aufweist, wobei das Verlagerungselement mittels der radial nach innen elastisch verlagerbaren Kontaktflächenabschnitte in der Ausnehmung verrastbar ist.The contact surface preferably has a plurality of contact surface sections, each contact surface section being elastically displaceable radially inwards, and the housing nut having a circumferential recess arranged radially on the inside, the displacement element being latchable in the recess by means of the radially inwardly displaceable contact surface sections.

Die einzelnen Kontaktflächenabschnitte können mittels einer Mehrzahl länglicher Kontaktflächenausnehmungen voneinander beabstandet sein, wobei sich die länglichen Kontaktflächenausnehmungen in der axialen Richtung entlang eines Bereichs des Verlagerungselements erstrecken können. Somit kann beim Verbinden des Verlagerungselements mit der Gehäusemutter jeder einzelne Kontaktflächenabschnitt unabhängig von den anderen Kontaktflächenabschnitten radial nach innen elastisch verlagert werden. Das Verlagerungselement ist dadurch widerstandsarm in die Ausnehmung der Gehäusemutter einfügbar und verrastbar. Die Ausnehmung kann dabei einen oder mehrere von den Kontaktflächenabschnitten hinterschneidbare Bereiche aufweisen.The individual contact surface sections can be spaced apart from one another by means of a plurality of elongate contact surface recesses, the elongate contact surface recesses being able to extend in the axial direction along a region of the displacement element. Thus, when the displacement element is connected to the housing nut, each individual contact surface section can be elastically displaced radially inward independently of the other contact surface sections. The displacement element can thus be inserted and locked into the recess in the housing nut with little resistance. The recess can be one or more of the Have contact surface sections undercut areas.

Vorzugsweise ist das Verlagerungselement mittels Spritzguss radial innen an die Gehäusemutter angespritzt ist. Der Spritzguss stellt vorteilhafterweise eine alternatives Herstellverfahren zum Verpressen bzw. zur reibschlüssigen Verbindung dar.The displacement element is preferably injection-molded radially on the inside of the housing nut by means of injection molding. The injection molding advantageously represents an alternative manufacturing method for pressing or for a frictional connection.

Vorzugsweise weist die Gehäusemutter ein Gewinde zum Aufschrauben auf ein komplementäres Gewinde einer Gehäusehülse des Verbindergehäuses auf. Durch Aufschrauben der Gehäusemutter auf die Gehäusehülse ist das Verbindergehäuse bildbar. Das Verschrauben stellt ein einfaches und bewährtes Verfahren zum Herstellen einer Verbindung dar, die zudem vorteilhafterweise lösbar ist. Ein aufwendiges Verbinden mittels eines Schweiß- oder Lötverfahrens kann somit vermieden werden. Alternativ können grundsätzlich jedoch auch andere Verbindungsverfahren vorgesehen sein, wie etwa ein Verkleben oder Verrasten von Gehäusemutter und Gehäusehülse.The housing nut preferably has a thread for screwing onto a complementary thread of a housing sleeve of the connector housing. The connector housing can be formed by screwing the housing nut onto the housing sleeve. The screwing represents a simple and proven method for establishing a connection, which is also advantageously detachable. A complex connection by means of a welding or soldering process can thus be avoided. Alternatively, however, other connection methods can in principle also be provided, such as gluing or locking the housing nut and housing sleeve.

Vorzugsweise weist die Mehrzahl Klemmfinger jeweils eine radial außen liegend angeordnete Fingerkontaktfläche auf, wobei die Fingerkontaktfläche im Betriebszustand der Gehäusemutter derart von der Kontaktfläche des Verlagerungselements kontaktiert ist, dass die Mehrzahl Klemmfinger radial nach innen verlagert ist.The plurality of clamping fingers preferably each have a finger contact surface arranged radially on the outside, the finger contact surface being contacted by the contact surface of the displacement element in the operating state of the housing nut such that the plurality of clamping fingers is displaced radially inwards.

Die Fingerkontaktfläche kann in radialer Richtung nach außen geneigt sein und etwa einen Neigungswinkel aufweisen, der komplementär zu einem Neigungswinkel der Kontaktfläche des Verlagerungselements ist. Bei der Montage des Verbinders auf ein zugeordnetes Kabel, insbesondere beim Verbinden der Gehäusemutter mit der Gehäusehülse, kann die Fingerkontaktfläche an der Kontaktfläche des Verlagerungselements widerstandsarm entlang gleiten, wodurch die Mehrzahl Klemmfinger graduell radial nach innen verlagert werden können. Im Betriebszustand der Gehäusemutter ist die Mehrzahl Klemmfinger derart radial nach innen verlagert, dass das Kabel von der Mehrzahl Klemmfinger fixiert ist. Der Betriebszustand der Gehäusemutter ist dabei der verbundene Zustand von Gehäusemutter und Gehäusehülse.The finger contact surface can be inclined outward in the radial direction and can have an inclination angle that is complementary to an inclination angle of the contact surface of the displacement element. When mounting the connector on an assigned cable, in particular when connecting the housing nut to the housing sleeve, the finger contact surface can slide along the contact surface of the displacement element with little resistance, as a result of which the plurality of clamping fingers can be gradually shifted radially inwards. In the operating state of the housing nut, the plurality of clamping fingers are displaced radially inward in such a way that the cable is fixed by the plurality of clamping fingers. The The operating state of the housing nut is the connected state of the housing nut and housing sleeve.

Vorzugsweise weist jeder Klemmfinger mindestens einen Greifhaken auf, wobei sich der Greifhaken radial nach innen erstreckt. Im Betriebszustand der Gehäusemutter kann der Greifhaken in den Kabelmantel des Kabels gepresst sein, so dass eine kraftschlüßige und/oder formschlüßige Verbindung zwischen den Greifhaken und dem Kabel gebildet ist. Eine am Kabel oder am Verbinder auftretende Zugkraft kann dadurch via den Greifhaken auf die Fixierungshülse übertragen werden, wobei die Fixierungshülse zwischen Gehäusemutter und Gehäusehülle eingespannt sein kann, wodurch die Zugkraft auf das Verbindergehäuse wirkt und nicht etwa an den Verbindungsstellen der Litzen mit den Kontaktelementen.Each clamping finger preferably has at least one gripping hook, the gripping hook extending radially inwards. In the operating state of the housing nut, the gripping hook can be pressed into the cable sheath of the cable, so that a force-fitting and / or positive connection is formed between the gripping hook and the cable. A tensile force occurring on the cable or on the connector can thereby be transmitted to the fixing sleeve via the gripping hook, the fixing sleeve being clamped between the housing nut and the housing sleeve, as a result of which the tensile force acts on the connector housing and not, for example, at the connection points of the strands with the contact elements.

Vorzugsweise ist das Verlagerungselement aus Polyetheretherketon (PEEK) gebildet. Grundsätzlich können zum Bilden des Verlagerungselements auch andere geeignete Kunststoffe Anwendung finden. Vorteilhafterweise kann ein PEEK-Verlagerungselement optisch leicht erkannt werden. Dadurch lässt sich leicht überprüfen, ob eine Montage des Verlagerungselements an die Gehäusemutter bereits ausgeführt wurde. Die Herstellung des PEEK-Verlagerungselement kann vorteilhafterweise mittels eines Spritzgussverfahrens erfolgen. Der Abrieb eines derartigen Verlagerungselements ist elektrisch nichtleitend und hat keine Auswirkung auf die elektrischen Eigenschaften des Verbinders.The displacement element is preferably formed from polyether ether ketone (PEEK). In principle, other suitable plastics can also be used to form the displacement element. Advantageously, a PEEK displacement element can be easily recognized optically. This makes it easy to check whether the displacement element has already been mounted on the housing nut. The PEEK displacement element can advantageously be produced by means of an injection molding process. The abrasion of such a displacement element is electrically non-conductive and has no effect on the electrical properties of the connector.

Vorzugsweise ist der Verbinder ein Rundstecker.The connector is preferably a circular plug.

Gemäß einem weiteren Aspekt der Erfindung wird eine Verwendung eines PEEK-Elements als Verlagerungselement in einem vorstehend beschriebenen Verbinder bereitgestellt.According to a further aspect of the invention, use of a PEEK element is provided as a displacement element in a connector described above.

Im Folgenden wird eine Ausführungsform der Erfindung anhand der beiliegenden Figuren näher beschrieben. Es versteht sich, dass die vorliegende Erfindung nicht auf diese Ausführungsform beschränkt ist, und dass einzelne Merkmale der Ausführungsform im Rahmen der beiliegenden Ansprüche zu weiteren Ausführungsformen kombiniert werden können.

Fig. 1
einen Verbinder in einer perspektivischen Ansicht vor der Endmontage;
Fig. 2
einen Verbinder im Betriebszustand der Gehäusemutter in einer perspektivischen Ansicht;
Fig. 3
eine Schnittdarstellung einer Ausführungsform einer Gehäusemutter und der Fixierungshülse;
Fig. 4
eine Schnittdarstellung einer Ausführungsform einer Gehäusemutter und der Fixierungshülse;
Fig. 5
eine Schnittdarstellung einer Ausführungsform einer Gehäusemutter und der Fixierungshülse;
Fig. 6
eine Schnittdarstellung einer Ausführungsform einer Gehäusemutter und der Fixierungshülse; und
Fig. 7
eine Schnittdarstellung einer Ausführungsform einer Gehäusemutter und der Fixierungshülse.
An embodiment of the invention is described in more detail below with reference to the accompanying figures. It is understood that the present invention is not limited to this embodiment, and that individual features of the Embodiment can be combined into further embodiments within the scope of the accompanying claims.
Fig. 1
a connector in a perspective view before final assembly;
Fig. 2
a connector in the operating state of the housing nut in a perspective view;
Fig. 3
a sectional view of an embodiment of a housing nut and the fixing sleeve;
Fig. 4
a sectional view of an embodiment of a housing nut and the fixing sleeve;
Fig. 5
a sectional view of an embodiment of a housing nut and the fixing sleeve;
Fig. 6
a sectional view of an embodiment of a housing nut and the fixing sleeve; and
Fig. 7
a sectional view of an embodiment of a housing nut and the fixing sleeve.

Fig. 1 zeigt einen Verbinder 10 in einer perspektivischen Ansicht, vor der Endmontage. Auf ein Kabelende eines Kabel 12, das vorliegend als Rundkabel gebildet ist, sind in einer axialen Richtung 14 eine metallische Gehäusemutter 16 und eine metallische Fixierungshülse 18 aufgeschoben. Die Gehäusemutter 16 und die Fixierungshülse 18 sind im Wesentlichen hohlzylindrisch gebildet und umschließen das Kabel 12 jeweils in Umfangsrichtung. Fig. 1 shows a connector 10 in a perspective view, before final assembly. A metallic housing nut 16 and a metallic fixing sleeve 18 are pushed onto an end of a cable 12, which in the present case is formed as a round cable, in an axial direction 14. The housing nut 16 and the fixing sleeve 18 are essentially hollow-cylindrical and each enclose the cable 12 in the circumferential direction.

Der Verbinder 10 weist ferner einen Isolatorkörper 20 auf, aufweisend eine Mehrzahl Kontaktelemente (nicht dargestellt), wobei die Anzahl der Kontaktelemente insbesondere der Anzahl der Litzen (nicht dargestellt) des Kabels 12 entspricht. Die Mehrzahl Kontaktelemente sind elektrisch leitend gebildet und weisen jeweils mindestens einen Kontaktbereich (nicht dargestellt) auf. Die freigelegten Litzen des Kabels 12 sind jeweils mit dem zugeordneten Kontaktbereich eines Kontaktelements verbunden, vorliegend sind die Litzen mit den Kontaktbereichen verlötet. Das Kabel 12 kann zum Leiten eines elektrischen Stroms und/oder zum Leiten eines elektrischen Signals gebildet sein.The connector 10 also has an insulator body 20, having a plurality of contact elements (not shown), the number of contact elements particularly corresponding to the number of strands (not shown) of the cable 12. The plurality of contact elements are electrically conductive and each have at least one contact area (not shown). The exposed strands of the cable 12 are each with the assigned contact area of a contact element connected, in the present case the strands are soldered to the contact areas. The cable 12 can be designed to conduct an electrical current and / or to conduct an electrical signal.

Die Gehäusemutter 16 ist vorliegend zum Verschrauben mit einer metallischen Gehäusehülse 22 gebildet. Dazu weisen sowohl die Gehäusemutter 16 als auch die Gehäusehülse 22 jeweils ein Gewinde 24 auf. Die Gehäusemutter 16 und die Gehäusehülse 22 weisen ferner an ihrem Umfang vorliegend zwei Werkzeugausnehmungen 26 auf. An den Werkzeugausnehmungen 26 ist zum Anbringen einer Kraft ein Werkzeug ansetzbar, wie etwa ein Gabelschlüssel.In the present case, the housing nut 16 is designed to be screwed to a metallic housing sleeve 22. For this purpose, both the housing nut 16 and the housing sleeve 22 each have a thread 24. The housing nut 16 and the housing sleeve 22 also have two tool recesses 26 on their circumference. A tool, such as an open-ended wrench, can be attached to the tool recesses 26 to apply a force.

Die Gehäusemutter 16 wird während der Montage über die Fixierungshülse 18 geschoben und anschließend mit der Gehäusehülse 22 verschraubt. Die Fixierungshülse 18 weist eine Mehrzahl Klemmfinger 28 auf, wobei die Mehrzahl Klemmfinger 28 radial nach innen verlagerbar sind. Das Verlagern der Mehrzahl Klemmfinger 28 erfolgt gleichzeitig mit dem Verschrauben der Gehäusemutter 16 mit der Gehäusehülse 22. Das heisst, dass im Betriebszustand der Gehäusemutter 16 die Mehrzahl Klemmfinger 28 an das zugeordnete Kabel 12 angepresst ist, wobei der Betriebszustand der Gehäusemutter 16 der verschraubtem Zustand von Gehäusemutter 16 und Gehäusehülse 22 ist. Das Verlagern der Mehrzahl Klemmfinger 28 erfolgt dabei mittels eines an der Gehäusemutter 16 radial innen liegend angeordneten Verlagerungselements. Das Verlagerungselement ist hier nicht dargestellt und wird in den folgenden Figuren im Detail gezeigt und erläutert.The housing nut 16 is pushed over the fixing sleeve 18 during assembly and then screwed to the housing sleeve 22. The fixing sleeve 18 has a plurality of clamping fingers 28, the plurality of clamping fingers 28 being displaceable radially inwards. The displacement of the plurality of clamping fingers 28 takes place simultaneously with the screwing of the housing nut 16 to the housing sleeve 22. This means that in the operating state of the housing nut 16 the plurality of clamping fingers 28 are pressed onto the associated cable 12, the operating state of the housing nut 16 being the screwed state of Housing nut 16 and housing sleeve 22 is. The displacement of the plurality of clamping fingers 28 takes place by means of a displacement element arranged radially on the inside of the housing nut 16. The displacement element is not shown here and is shown and explained in detail in the following figures.

Jeder Klemmfinger 28 weist vorliegend mehrere Greifhaken 30 auf, die sich in einer radialen Richtung 32 nach innen, in Richtung des Kabels 12 erstrecken. Die Greifhaken 30 sind im Betriebszustand der Gehäusemutter 16 derart an das Kabel 12 angepresst, dass eine am Kabel 12 oder am Verbinder 10 auftretende Zugkraft via der Greifhaken 30 auf das Verbindergehäuse 42 (siehe Fig. 2) übertragen wird.In the present case, each clamping finger 28 has a plurality of gripping hooks 30 which extend inwards in a radial direction 32 in the direction of the cable 12. In the operating state of the housing nut 16, the gripping hooks 30 are pressed onto the cable 12 in such a way that a tensile force that occurs on the cable 12 or on the connector 10 is applied to the connector housing 42 via the gripping hooks 30 (see Fig. 2 ) is transmitted.

Die Fixierungshülse 18 weist zudem einen umfänglich, radial außen angeordneten Anschlagring 34 mit einem an dem Anschlagring 34 radial außen angeordneten Vorsprung 36 auf.The fixing sleeve 18 also has a circumferential, radially outer stop ring 34 with a radially outer stop ring 34 Projection 36 on.

Femer ist der Isolatorkörper 20 von zwei Halbschalen 38 umgeben, wobei die Halbschalen 38 aneinander derart anliegen, dass sie den Isolatorkörper 20 in Umfangsrichtung zumindest bereichsweise umschließen.The insulator body 20 is also surrounded by two half-shells 38, the half-shells 38 abutting one another in such a way that they enclose the insulator body 20 in the circumferential direction at least in regions.

Fig. 2 zeigt den Verbinder 10 in montiertem Zustand. Die Gehäusemutter 16 befindet sich im Betriebszustand. Über den Isolatorkörper 20 (nicht gezeigt in Fig. 2), die beiden Halbschalen 38 (nicht gezeigt in Fig. 2) und bereichsweise über die Fixierungshülse 18 (nicht gezeigt in Fig.2) ist die Gehäusehülse 22 geschoben. Der von der Gehäusehülse 22 umschlossene Bereich der Fixierungshülse 18 reicht bis auf den Anschlagring 34 (nicht gezeigt in Fig. 2), wobei die Gehäusehülse 22 eine Ausnehmung 40 (nicht gezeigt in Fig. 2) aufweist, und der Vorsprung 36 (nicht gezeigt in Fig. 2) des Anschlagrings 34 derart in der Ausnehmung 40 angeordnet ist, dass ein Verdrehen der Gehäusehülse 22 relativ zur Fixierungshülse 18 unterbunden ist. Fig. 2 shows the connector 10 in the assembled state. The housing nut 16 is in the operating state. Via the insulator body 20 (not shown in FIG Fig. 2 ), the two half shells 38 (not shown in Fig. 2 ) and in some areas via the fixing sleeve 18 (not shown in Fig. 2 ) the housing sleeve 22 is pushed. The area of the fixing sleeve 18 enclosed by the housing sleeve 22 extends to the stop ring 34 (not shown in FIG Fig. 2 ), the housing sleeve 22 having a recess 40 (not shown in FIG Fig. 2 ), and the projection 36 (not shown in FIG Fig. 2 ) of the stop ring 34 is arranged in the recess 40 such that twisting of the housing sleeve 22 relative to the fixing sleeve 18 is prevented.

Die Gehäusemutter 16 ist über die Fixierungshülse 18 geschoben und mittels der zueinander komplementären Gewinde 24 mit der Gehäusehülse 22 verschraubt. Die Gehäusemutter 16 und die Gehäusehülse 22 bilden vorliegend das Verbindergehäuse 42.The housing nut 16 is pushed over the fixing sleeve 18 and screwed to the housing sleeve 22 by means of the mutually complementary threads 24. The housing nut 16 and the housing sleeve 22 in the present case form the connector housing 42.

Zwischen der Gehäusemutter 16 und der Gehäusehülse 22 ist die Fixierungshülse 18 derart angeordnet und mittels der Verschraubung fixiert, dass via die Greifhaken 30 eine auftretende Zugkraft auf das Verbindergehäuse 42 übertragen werden kann.The fixing sleeve 18 is arranged between the housing nut 16 and the housing sleeve 22 and fixed by means of the screw connection such that a tensile force that occurs can be transmitted to the connector housing 42 via the gripping hooks 30.

Fig. 3 zeigt eine erste Ausführungsform einer Gehäusemutter 16, des Verlagerungselements 44 und der Fixierungshülse 18 in einer Schnittdarstellung. Fig. 3 shows a first embodiment of a housing nut 16, the displacement element 44 and the fixing sleeve 18 in a sectional view.

Das Verlagerungselement 44 ist an der Gehäusemutter 16 radial innen liegend angeordnet und weist eine radial innen liegend angeordnete Kontaktfläche 46 auf, wobei die Kontaktfläche 46 um einen vorbestimmten Winkel angestellt ist, so dass sich die Kontaktfläche in radialer Richtung nach innen neigt. Dadurch ist im Betriebszustand der Gehäusemutter 16 die Mehrzahl Klemmfinger 28 derart kontaktiert, dass die Mehrzahl Klemmfinger 28 radial nach innen verlagert ist.The displacement element 44 is arranged on the housing nut 16 radially on the inside and has a contact surface 46 arranged radially on the inside, the contact surface 46 being set at a predetermined angle, so that the contact surface tilts inwards in the radial direction. As a result, in the operating state of the housing nut 16, the plurality of clamping fingers 28 are contacted such that the plurality of clamping fingers 28 are displaced radially inward.

Jeder Klemmfinger 28 weist jeweils eine radial außen liegend angeordnete Fingerkontaktfläche 48 auf, wobei die Fingerkontaktfläche 48 in radialer Richtung nach außen komplementär zu dem vorbestimmten Winkel der Kontaktfläche 46 geneigt ist.Each clamping finger 28 has in each case a finger contact surface 48 arranged radially on the outside, the finger contact surface 48 being inclined in the radial direction outward complementarily to the predetermined angle of the contact surface 46.

Dadurch kann während des Verschraubens von Gehäusemutter 16 und Gehäusehülse 22 jede Fingerkontaktfläche 48 auf der Kontaktfläche 46 des Verlagerungselements 44 widerstandsarm gleiten, wodurch sich die Mehrzahl Klemmfinger 28 graduell radial nach innen verlagert, bis im Betriebszustand der Gehäusemutter 16 die Mehrzahl Klemmfinger 28 an das zugeordnete Kabel 12 angepresst ist.As a result, each finger contact surface 48 can slide on the contact surface 46 of the displacement element 44 with little resistance during the screwing of the housing nut 16 and the housing sleeve 22, as a result of which the plurality of clamping fingers 28 gradually moves radially inward until the plurality of clamping fingers 28 on the assigned cable in the operating state of the housing nut 16 12 is pressed.

Das Verlagerungselement 44 ist vorliegend als Einlegeteil gebildet und mit der Gehäusemutter 16 verpresst. Das Verlagerungselement 44 ist aus einem elektrisch nichtleitenden Werkstoff gebildet, vorliegend Polyetheretherketon (PEEK). Beim Verschrauben der Gehäusemutter 16 mit der Gehäusehülse 22 reibt der Werkstoff der Mehrzahl Klemmfinger 28 auf PEEK und nicht etwa Metall auf Metall. Somit sind während der Montage eventuell entstehende Späne bzw. Abrieb nichtleitend und haben keinen Einfluss auf die elektrischen Eigenschaften des Verbinders.In the present case, the displacement element 44 is formed as an insert and is pressed with the housing nut 16. The displacement element 44 is formed from an electrically non-conductive material, in the present case polyether ether ketone (PEEK). When screwing the housing nut 16 to the housing sleeve 22, the material of the plurality of clamping fingers 28 rubs on PEEK and not, for example, metal on metal. This means that any chips or abrasion that may occur during assembly are non-conductive and have no influence on the electrical properties of the connector.

Bei der in Fig. 4 dargestellten Schnittansicht einer zweiten Ausführungsform weist die Gehäusemutter 16 einen Abschlussring 50 auf. Der Abschlußring 50 ist als ein sich in der radialen Richtung 32 nach innen erstreckender Vorsprung gebildet. Der Abschlussring 50 ist vorzugsweise am axial hinteren Ende der Gehäusemutter 16 ausgebildet. Nach dem Einpressen des Verlagerungselements 44 in die Gehäusemutter 16 bildet der Abschlussring 50 mit dem Verlagerunselement 44 einen Formschluss, wodurch während des Verschraubens der Gehäusemutter 16 mit der Gehäusehülse 22 das Verlagerungselement 44 vor einem Verrutschen, insbesondere in der axialen Richtung 14, gesichert ist. Das Verlagerungselement 44 kann alternativ auch radial innen an die Gehäusemutter 16 und den Anschlussring 50 angespritzt sein. Die Gehäusemutter 16, aufweisend den Abschlussring 50, ist vorliegend mittels eines Drehverfahrens hergestellt.At the in Fig. 4 Shown sectional view of a second embodiment, the housing nut 16 has an end ring 50. The end ring 50 is formed as a protrusion extending inward in the radial direction 32. The end ring 50 is preferably formed at the axially rear end of the housing nut 16. After the displacement element 44 has been pressed into the housing nut 16, the closure ring 50 forms a positive connection with the displacement element 44, as a result of which the displacement element 44 is prevented from slipping while the housing nut 16 is screwed onto the housing sleeve 22. is secured in particular in the axial direction 14. The displacement element 44 can alternatively also be injection molded radially on the inside of the housing nut 16 and the connecting ring 50. The housing nut 16, having the end ring 50, is produced here by means of a turning process.

Bei der in Fig. 5 dargestellten Schnittansicht einer dritten Ausführungsform ist das Verlagerungselement 44 dünnwandig ausgeführt. Somit ist das Verlagerungselement 44 in Standard-Gehäusemuttem einpressbar.At the in Fig. 5 Shown sectional view of a third embodiment, the displacement element 44 is thin-walled. The displacement element 44 can thus be pressed into standard housing nuts.

Bei der in Fig. 6 dargestellten Schnittansicht einer vierten Ausführungsform weist die Kontaktfläche 46 des Verlagerungselements 44 eine Mehrzahl Kontaktflächenabschnitte 52 auf, wobei jeder Kontaktflächenabschnitt 52 radial nach innen elastisch verlagerbar ist. Die einzelnen Kontaktflächenabschnitte 52 sind mittels einer Mehrzahl Schlitze 56 bzw. von länglichen Kontaktflächenausnehmungen voneinander beabstandet. Die Schlitze 56 erstrecken sich in der axialer Richtung 14 entlang eines Abschnitts des Verlagerungselements 44.At the in Fig. 6 Shown sectional view of a fourth embodiment, the contact surface 46 of the displacement element 44 has a plurality of contact surface sections 52, wherein each contact surface section 52 is elastically displaceable radially inwards. The individual contact surface sections 52 are spaced apart from one another by means of a plurality of slots 56 or elongated contact surface recesses. The slots 56 extend in the axial direction 14 along a portion of the displacement element 44.

Die Gehäusemutter 16 weist eine radial innen angeordnete Ausnehmung 54 auf, wobei die Ausnehmung 54 derart bemessen ist, dass das Verlagerungselement 44 mittels Einpressens in die Ausnehmung 54 einfügbar ist. Die Ausnehmung 54 weist zudem einen von den Kontaktflächenabschnitten 52 hinterschneidbaren Bereich 58 auf. Beim Einpressen des Verlagerungselements 44 werden die Kontaktflächenabschnitte 52 radial nach innen verlagert bis das Verlagerungselements 44 in der Ausnehmung 54 angeordnet ist. Dort federn die Kontaktflächenabschnitte 52 elastisch zurück in die ursprüngliche Position, wodurch die Kontaktflächenabschnitte 52 den hinterschneidbaren Bereich 58 hinterschneiden und dadurch das Verlagerungselements 44 in der Ausnehmung 54 verrastet ist.The housing nut 16 has a recess 54 arranged radially on the inside, the recess 54 being dimensioned such that the displacement element 44 can be inserted into the recess 54 by pressing. The recess 54 also has a region 58 that can be undercut by the contact surface sections 52. When the displacement element 44 is pressed in, the contact surface sections 52 are displaced radially inwards until the displacement element 44 is arranged in the recess 54. There, the contact surface sections 52 resiliently spring back into the original position, as a result of which the contact surface sections 52 undercut the undercut region 58 and the displacement element 44 is thereby locked in the recess 54.

Fig. 7 zeigt eine Schnittansicht einer weiteren Ausführungsform. Das vorliegende Verlagerungselement 44 ist dünnwandig und in einer radial nach innen geneigten, in etwa konischen Form ausgeführt. Die Ausnehmung 54 der Gehäusemutter 16 ist mit einer dazu komplementären Neigung gebildet und weist den hinterschneidbaren Bereich 58 auf. Das Verlagerungselement 44 weist neben den Kontaktflächenabschnitten 52 und den Schlitzen 56 einen umlaufende, radial außen angeordneten Vorsprung 60 auf, wodurch das Verlagerungselement 44 nach dem Einpressen mittels des Vorsprungs 60 in dem hinterschneidbaren Bereich 58 verrastet ist. Das Verlagerungselement 44 ist dank seiner konischen Form entlang der gesamten axialen Erstreckung als Kontaktfläche 46 nutzbar. Fig. 7 shows a sectional view of a further embodiment. The present displacement element 44 is thin-walled and has an approximately conical shape that is inclined radially inwards. The recess 54 of the housing nut 16 is with an inclination complementary thereto and has the undercut region 58. In addition to the contact surface sections 52 and the slots 56, the displacement element 44 has a circumferential, radially outer projection 60, as a result of which the displacement element 44 is locked in the undercut region 58 after being pressed in by means of the projection 60. Thanks to its conical shape, the displacement element 44 can be used as a contact surface 46 along the entire axial extent.

BezugszeichenlisteReference symbol list

1010th
VerbinderInterconnects
1212
Kabelelectric wire
1414
axiale Richtungaxial direction
1616
GehäusemutterHousing nut
1818th
FixierungshülseFixation sleeve
2020th
IsolatorkörperInsulator body
2222
GehäusehülseHousing sleeve
2424th
Gewindethread
2626
WerkzeugausnehmungenTool recesses
2828
KlemmfingerClamping fingers
3030th
GreifhakenGripping hook
3232
radiale Richtungradial direction
3434
AnschlagringStop ring
3636
Vorsprunghead Start
3838
HalbschalenHalf shells
4040
Ausnehmung der GehäusehülseRecess of the housing sleeve
4242
VerbindergehäuseConnector housing
4444
VerlagerungselementDisplacement element
4646
KontaktflächeContact area
4848
FingerkontaktflächeFinger contact area
5050
AbschlussringGraduation ring
5252
KontaktflächenabschnittContact surface section
5454
Ausnehmung der GehäusemutterRecess of the housing nut
5656
Schlitzslot
5858
hinterschneidbarer Bereichundercut area
6060
Vorsprunghead Start

Claims (13)

  1. A connector (10) having a connector housing (42), comprising:
    a metal securing sleeve (18), having a plurality of clamping fingers (28), the securing sleeve (18) being designed to slide onto a cable (12), and
    a metal housing nut (16), the housing nut (16) being designed to slide over the securing sleeve (18) and comprising a displacement element (44) arranged radially on the inside, and the plurality of clamping fingers (28) being displaced radially inwards in an operating state of the housing nut (16) and of the displacement element (44) such that the plurality of clamping fingers (28) are pressed against the associated cable (12),
    characterized in that
    the displacement element (44) is made of an electrically non-conductive material.
  2. The connector (10) according to claim 1, wherein the displacement element (44) has a circumferential contact surface (46) arranged radially on the inside, wherein the contact surface (46) is inclined inwards in the radial direction, and wherein the contact surface (46) contacts the plurality of clamping fingers (28) in the operating state of the housing nut (16) such that the plurality of clamping fingers (28) are displaced radially inwards.
  3. The connector (10) according to claim 1 or 2, wherein the displacement element (44) is designed as an insert.
  4. The connector (10) according to claim 3, wherein the displacement element (44) and the housing nut (16) are frictionally connected.
  5. The connector (10) according to claim 3 or 4, wherein the displacement element (44) and the housing nut (16) are connected by means of a press fit.
  6. The connector (10) according to claim 3, wherein the contact surface (46) has a plurality of contact surface portions (52), wherein each contact surface portion (52) can be resiliently displaced radially inwards, and wherein the housing nut (16) has a circumferential recess (54) arranged radially on the inside, wherein the displacement element (44) can be latched in the recess (54) by means of the contact surface portions (52) that can be resiliently displaced radially inwards.
  7. The connector (10) according to claim 1 or 2, wherein the displacement element (44) is injection-molded onto the housing nut (16) radially on the inside.
  8. The connector (10) according to any one of claims 1 to 7, wherein the housing nut (16) has a thread (24) for being screwed onto a complementary thread (24) of a housing sleeve (22).
  9. The connector (10) according to any one of claims 1 to 8, wherein the plurality of clamping fingers (28) each have a finger contact surface (48) arranged radially on the outside, and wherein the finger contact surface (48) is contacted by the contact surface (46) of the displacement element (44) in the operating state of the housing nut (16) such that the plurality of clamping fingers (28) are displaced radially inwards.
  10. The connector (10) according to any one of claims 1 to 9, wherein each clamping finger (28) has at least one gripping hook (30), wherein the gripping hook (30) extends radially inwards.
  11. The connector (10) according to any one of claims 1 to 10, wherein the displacement element (44) is made of polyether ether ketone (PEEK).
  12. The connector (10) according to any one of claims 1 to 11, wherein the connector (10) is a round plug.
  13. A use of a PEEK element as the displacement element (44) in a connector (10) according to any one of claims 1 to 12.
EP18185747.5A 2017-07-26 2018-07-26 Connector and use Active EP3435494B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017007050.4A DE102017007050B3 (en) 2017-07-26 2017-07-26 Connector and use

Publications (2)

Publication Number Publication Date
EP3435494A1 EP3435494A1 (en) 2019-01-30
EP3435494B1 true EP3435494B1 (en) 2020-05-13

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EP18185747.5A Active EP3435494B1 (en) 2017-07-26 2018-07-26 Connector and use

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DE (1) DE102017007050B3 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP4138229A1 (en) * 2021-08-20 2023-02-22 Yamaichi Electronics Deutschland GmbH Connector for receiving a cable section of a cable, use of a connector and manufacture of a connector

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BE630324A (en) * 1962-03-30
FR2579837B1 (en) 1985-03-29 1987-06-05 Bonhomme F R CABLE CLAMP FOR ELECTRICAL INSTALLATIONS
US4739126A (en) * 1987-01-16 1988-04-19 Amp Incorporated Panel mount ground termination apparatus
US5352134A (en) 1993-06-21 1994-10-04 Cabel-Con, Inc. RF shielded coaxial cable connector
DE4404260A1 (en) 1994-02-10 1995-08-17 W W Fischer Sa Electric plug connector
US6582248B2 (en) * 2001-11-29 2003-06-24 Neutrik Ag Durable RJ-45 data connector assembly
DE102008000479A1 (en) * 2008-03-03 2009-09-10 Amad - Mennekes Holding Gmbh & Co. Kg Plug-in device with strain relief

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4138229A1 (en) * 2021-08-20 2023-02-22 Yamaichi Electronics Deutschland GmbH Connector for receiving a cable section of a cable, use of a connector and manufacture of a connector

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DE102017007050B3 (en) 2018-11-22
EP3435494A1 (en) 2019-01-30

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