Termination assembly of a cable connector assembly, cable connector assembly and method of assembling a cable connector assembly

Abstract

The invention relates to a termination assembly (1) of a cable plug connector arrangement (2), comprising a termination cap (3), which can be mounted on a cable-side end (5) of a plug connector housing (6), and a cable strain relief device (4) which can be fastened to a cable (7). The cable strain relief device (4) is captively connected to the termination cap (3) when the termination assembly (1) is in a pre-assembled state. During the mounting of the termination cap (3) on the plug connector housing (6), the cable strain relief device (4) can be moved in the direction of a cable-side end (19) of the termination cap (3). The termination cap (3) can, at a plug-connector-side end portion (12), be latched together with the plug connector housing (6) and for this purpose has at least one latching means designed as a latching tab (15) for latching together with an associated mating latching means (17) of the plug connector housing (6), wherein the latching tab (15) also has a mating connecting means (10) for a connecting means (9) of the cable strain relief device (4) in order to limit the mobility of the cable strain relief device (4) at least in the axial direction (A) in the pre-assembled state.

Description

[0001] The present application claims priority from European patent application No. 24 165 189.2.

[0002] The invention relates to a termination assembly for a cable connector arrangement, comprising a termination cap that can be mounted on a cable-side end of a connector housing of the cable connector arrangement and a cable pull-out safety device that can be attached to a cable of the cable connector arrangement.

[0003] The invention also relates to a cable connector arrangement, in particular a cable connector arrangement for high-voltage technology, comprising a termination assembly.

[0004] The invention further relates to a method for assembling a cable connector arrangement, in particular a cable connector arrangement for high-voltage technology.

[0005] Cable connectors are essential components in numerous electronic devices and systems, available in various designs. They are intended to provide a reliable electrical connection between the components involved and serve to transmit electrical power and / or data signals to corresponding mating connectors. Typical applications include connecting electronic assemblies in computers, communication devices, automobiles, and many other fields.

[0006] When assembling a cable connector onto a cable, a key challenge lies in mounting a large number of the connector's components onto the cable, as described, for example, in DE 10 2014 200 133 A1. Figures 1 and 2 depicted.

[0007] A connector component that regularly needs to be installed in the cable entry area (also known as the "cable exit" or "cable entry") is a so-called "terminating cap," which is usually attached to the cable-side end of the connector housing as the final connector component. A cable pull-out safety device is also typically installed in the cable-side end section of the cable connector to prevent the cable from being pulled out or detached from the connector uncontrollably. Finally, cable and / or housing seals are sometimes installed in the cable exit area. This list is not exhaustive. The assembly effort for a cable connector can therefore be considerable and often requires careful and time-consuming work by trained personnel or sophisticated assembly equipment.The assembly of the individual connector components is therefore a factor that significantly influences the economic efficiency of mass production of a cable connector, and there is a need to improve the efficiency of this process in order to achieve time and cost savings in connector assembly.

[0008] For further technical background, reference should be made to the following publications: EP 2 816 672 A1 relates to a cable strain relief system with a guide receptacle and at least one actuating jaw associated with the guide receptacle. The actuating jaw is essentially movable along the longitudinal axis of an inserted cable from a pre-locking position to a final locking position. US 2019 / 0044277 A1 relates to a similar cable connector arrangement with a cable strain relief device. The cable strain relief device includes cable clamps mounted on a pair of opposing inclined surfaces on an inner surface. CN 112448220 A relates to an end cap for an electrical connector with a cable strain relief device that can be screwed in during assembly.Finally, CN 117317687 A relates to a cable fastening device with a cable clamp comprising a body which has a cable passage hole through which a cable can be passed, with several elastic claws for clamping the cable.

[0009] In view of the prior art, the object of the present invention is to provide a termination assembly for a cable connector arrangement and a cable connector arrangement that is preferably particularly easy and economical to mount on a cable. The present invention also aims to provide a method for mounting a cable connector arrangement by means of which a termination assembly for a cable connector arrangement is preferably particularly easy and economical to mount on a cable.

[0010] The problem is solved for the final assembly by the features listed in claim 1. With regard to the cable connector arrangement, the problem is solved by the features of claim 12, and with regard to the method by claim 13.

[0011] The dependent claims and the features described below relate to advantageous embodiments and variants of the invention.

[0012] The invention relates to a termination assembly of a cable connector arrangement, comprising a termination cap that can be mounted on a cable-side end of a connector housing of the cable connector arrangement and a cable pull-out safety device that can be attached to a cable of the cable connector arrangement.

[0013] The cable can be, in particular, an electrical or optical cable of any type (e.g., single-core, multi-core, coaxial, twisted pair, etc.). The cable typically has a sheath that encloses the internal cable components, such as one or more conductors and / or a shield. Preferably, the cable pull-out device can be attached to the cable sheath, preferably at a cable end.

[0014] The cable connector is, in particular, an electrical or optical cable connector, again of any design. Preferably, it can be a high-voltage connector for transmitting voltages and currents for high-voltage technology. However, the invention can also be used, for example, with a data connector for transmitting data signals.

[0015] The termination assembly or its individual components, the connector housing and the cable seal mentioned below, as well as any other components, such as a support sleeve or one or more contact elements, can also be referred to below as "connector components" of the cable connector.

[0016] The cable pull-out safety device is securely connected to the end cap in a pre-assembled state of the termination assembly, in which the end cap is not mechanically connected to the connector housing.

[0017] Because the cable pull-out device is already securely connected to the end cap in the pre-assembly state, i.e., in the unassembled state of the termination assembly and thus, for example, in a delivery state of the termination assembly, the handling of the end cap and the cable pull-out device as a single component during connector assembly is possible, which can reduce the assembly effort (and thus also the assembly time) and the susceptibility to errors during connector assembly.

[0018] The aforementioned "captive connection" can preferably be a positive-locking connection between the cable pull-out device and the end cap, particularly (but not exclusively) as described below. However, it can also be any mechanical connection that ensures the cable pull-out device and the end cap cannot be unintentionally separated before the end cap is mounted to the connector housing. For example, it can alternatively or additionally be a material-fit and / or force-fit connection.

[0019] A material-bonded connection can be provided, for example, by one or more welded or glued joints applied between the cable puller and the end cap during pre-assembly or manufacturing, in particular in such a way that the material-bonded connection (i.e., the welded or glued joint) can be released again during assembly (e.g., in the form of a predetermined breaking point).

[0020] A single-piece design of the cable pull-out device and the end cap may also be provided to enable a captive connection in the pre-assembled state, for example by means of a movable connection between the cable pull-out device and the end cap, including the use of at least one film hinge.

[0021] It is also possible to provide for an initially immovable connection between the cable pull-out device and the end cap via one or more predetermined breaking points, so that the cable pull-out device and the end cap can initially be manufactured and delivered together, whereby the predetermined breaking point is subsequently broken by mounting the end cap on the connector housing or deliberately beforehand by the assembler or an assembly device.

[0022] A positive-locking connection between the cable pull-out device and the end cap can also be provided to ensure a secure connection in the pre-assembled state. For this purpose, the cable pull-out device can be pressed into the end cap during pre-assembly, optionally with increased friction (e.g., through roughness on the sheath side of the cable pull-out device and / or end cap).

[0023] Combinations of different joining techniques are also explicitly possible within the scope of the invention.

[0024] As already mentioned, the invention is described below essentially by means of a purely form-fitting, captive connection between cable pull-out protection and end cap in the pre-assembly state, which, however, is not to be understood as limiting.

[0025] The cable pull-out safety device can be moved from the connector housing towards a cable-side end (in particular, an end facing away from the connector housing) of the end cap during the assembly of the end cap on the connector housing.

[0026] Because the cable pull-out device can be moved "independently" within the end cap during assembly by the connector housing, thus being brought to its final position within the end cap, the assembly of these two connector components is further simplified. An installer or a device for assembling the cable connector assembly therefore only needs to mount the end cap, which simultaneously mounts the cable pull-out device without requiring a separate assembly step.

[0027] To allow the cable pull-out device to move through the connector housing during assembly, it may be provided that an end face of the cable pull-out device facing the connector housing and / or an actuating surface formed on the inner and / or outer sheath of the cable pull-out device is accessible from the connector-side end of the end cap. In this way, the connector housing (or at least a section of the connector housing) can make direct or indirect contact with the actuating surface and thus cause the cable pull-out device to move.

[0028] According to the invention, the mobility of the cable pull safety device in the pre-assembly state, when the cable pull safety device is securely connected to the end cap, is limited at least in the axial direction.

[0029] Limited mobility of the cable pull-out device, at least in the axial direction, means that movement may be possible in the axial direction (i.e., movement in or against the mounting direction), but that this movement may be limited between a pre-assembly position and an end position, with the pre-assembly position preferably being located closer to the connector-side end of the end cap than the end position.

[0030] According to the invention, it is also provided that the end cap can be snapped into the connector housing at its connector-side end section.

[0031] The end cap has at least one locking means for locking with a corresponding counter-locking means of the connector housing, preferably at least two locking means spaced apart from each other on the circumference or even more locking means.

[0032] According to the invention, at least one of the locking means is designed as a locking tab that is elastic in a lateral direction (i.e. transverse, preferably orthogonal, to the axial direction), for example in the form of a locking arm or a locking rocker.

[0033] To provide the elasticity of the locking device or locking tab, it may be provided that a longitudinal slot or slit is formed in the side wall of the end cap on the circumferential side next to the respective locking device or locking tab.

[0034] According to the invention, the cable pull-out safety device has at least one connecting means and the end cap has at least one counter-connecting means to limit the mobility (at least in the axial direction).

[0035] The connecting element and the counter-connecting element are preferably designed and arranged on the cable pull-out device and the end cap in such a way that the connecting element is mechanically blocked by the counter-connecting element (i.e., abuts the counter-connecting element) – or vice versa. In particular, the aforementioned limitation of movement in the axial direction can be achieved by ensuring that the connecting element and the counter-connecting element abut each other at least at a defined stop position during the mutual movement of the cable pull-out device and the end cap in the axial direction.

[0036] According to the invention, the locking element or locking tab of the end cap comprises the aforementioned mating element. In this way, the same component advantageously provides a dual function in the terminal cap: securing the cable pull-out device in the pre-assembled state and locking it to the connector housing in the assembled state.

[0037] In a further development of the invention, it can be provided that the end cap has at least two locking means spaced apart from each other circumferentially for locking with a respective counter-locking means of the connector housing.

[0038] Distributing multiple locking devices along the circumference of the end cap can increase the mechanical stability of the end assembly. A specific distribution or arrangement of the locking devices along the circumference of the end cap can provide anti-rotation protection and / or mechanical coding to ensure that the cable pull-out device can only be mounted in a single orientation or in specific, predetermined orientations within the end cap.

[0039] In a further development of the invention, it can be provided that the locking tab has a locking hook or a similar locking projection for a counter-locking means of the connector housing designed as a locking recess, preferably, however, a locking recess for a counter-locking means of the connector housing designed as a locking projection (the locking tab can thus, for example, be U-shaped).

[0040] Preferably, the connecting element has at least one locking surface and the mating connecting element has at least one counter-locking surface capable of abutting each other to limit the movement of the cable pull-out restraint in the pre-assembled state. The locking and counter-locking surfaces can, in principle, be of any shape, in particular predominantly flat, but optionally also concave / convex or curved in some other way. Alternatively or additionally to locking and counter-locking surfaces, a (counter-)locking tip, a (counter-)locking edge, or any other structure usable as a stop can also be provided, in particular combinations of the aforementioned variants. It should also be noted that, optionally, several locking surfaces can abut a common counter-locking surface – or vice versa.

[0041] Preferably, a surface vector of the blocking surface and / or a surface vector of the counter-blocking surface extends at least substantially in the axial direction, i.e., in or against the mounting direction of the cable pull-out device in the end cap. However, the surface vectors can also extend radially, preferably perpendicular or orthogonal to the axial / mounting direction. Preferably, the surface vector of the blocking surface extends opposite to the surface vector of the counter-blocking surface. Blocking and / or counter-blocking surfaces oriented obliquely to the longitudinal axis of the cable pull-out device or to the axial direction (i.e., conical blocking / counter-blocking surfaces) are also possible in principle.

[0042] It may be provided that the blocking / counter-blocking surface is formed on the side surfaces of the lateral extensions mentioned below and / or on flags, pins, webs, ribs, flange-shaped sections or the like.

[0043] The blocking / counter-blocking surface can be the end face, side face and / or inner face of a depression.

[0044] The blocking / counter-blocking surfaces can extend completely around the circumference, especially if they are formed on a flange-shaped section of the end cap or cable pull-out protection device, or only along an inner or outer circumferential segment, especially if they are formed on the lateral extensions, flags or the like.

[0045] According to a further development of the invention, it can be provided that the at least one connecting means of the cable pull-out protection is in engagement with the at least one counter-connecting means of the end cap in the pre-assembly state of the end assembly in order to limit the mobility of the cable pull-out protection at least in the axial direction or in or against the assembly direction.

[0046] Preferably, at least two of the aforementioned connecting elements are provided, spaced apart from each other in the circumferential and / or axial direction. For example, three, four, five, six, or even more connecting elements may be provided and distributed along the circumference and / or longitudinal extent of the cable pull-out restraint, in particular equidistantly spaced. If exactly two connecting elements are provided, these may preferably be opposite each other circumferentially or offset from each other by 180°.

[0047] According to a further development of the invention, the connecting element of the cable pull-out protection can be designed as a lateral extension and the counter-connecting element of the end cap as a receptacle for the lateral extension. The locking surfaces can then, for example, be formed laterally on the lateral extensions and the counter-locking surfaces on the inner surfaces of the receptacle, so that the locking surfaces can abut with their side surfaces against areas of the inner surfaces of the lateral extension that serve as end stops (i.e., for example, at opposite ends of an elongated recess mentioned below).

[0048] It should also be emphasized that it is also possible for the counter-connecting element of the end cap (having the counter-blocking surface) to be designed as a lateral extension and the connecting element of the cable pull-out protection (having the blocking surface) to be designed as a receptacle for the lateral extension.

[0049] Preferably, the at least one receptacle for the at least one lateral extension is a recess, in particular one or more openings in the side wall of the end cap (i.e., for example, a through hole or a window-shaped opening). Alternatively, the recesses may also be indentations in the side wall (i.e., for example, a blind hole or a groove). Alternatively, the at least one receptacle for the at least one lateral extension may also be one or more steps, edges, webs, ribs, grooves, or other suitable counter-connecting elements to provide the desired movement limitation.

[0050] Either the connecting element of the cable pull-out device or the counter-connecting element of the end cap can preferably be designed as a recess, in particular as an elongated hole, as explained below.

[0051] Preferably, the recesses in question are elongated recesses (hereinafter referred to as "slotted holes"), in particular slotted holes extending in the axial direction, and most preferably slotted holes extending in a straight line in the axial direction. Preferably, the at least one slotted hole extends in the axial direction at least between the aforementioned pre-assembly position and the final position, or at least it can be provided that the longitudinal extent of the slotted hole corresponds at least to the distance between the pre-assembly position and the final position.

[0052] It should be mentioned here that the movement of the cable pull-out device can also be limited in the lateral or radial direction and / or rotationally or circumferentially. Rotational movement limitation can also be achieved, in particular, by at least one lateral extension that engages with the end cap, so that twisting of the cable pull-out device and the end cap relative to each other (i.e., circumferential movement) is only possible to a limited extent or is completely locked. A lateral orRadial movement limitation can be achieved, in particular, by arranging the cable pull-out device within the (preferably sleeve-shaped) end cap, so that the lateral movement can be precisely adjusted by a potential clearance between the outer dimensions of the cable pull-out device and the inner dimensions of the end cap in the assembled state (i.e., in particular, by the difference between the outer diameter of the cable pull-out device and the inner diameter of the end cap). Preferably, the cable pull-out device is mounted within the end cap with at least approximately or completely free play with respect to rotation or movement in the circumferential direction and / or movement in the lateral or radial direction.

[0053] In a further development of the invention, it can be provided that the cable pull-out device and the end cap form a mutual guiding function for the movement of the cable pull-out device towards the cable-side end of the end cap.

[0054] In particular, it may be provided that the at least one locking tab has a guiding function for the movement of the cable pull safety device towards the cable-side end of the end cap, in particular a recess, preferably an elongated hole, for receiving a projection of the cable pull safety device, preferably for receiving the connecting element.

[0055] In particular, if the locking tab has elongated recesses, these recesses can guide corresponding projections, such as the lateral extensions of the cable pull-out device, along their longitudinal extent. This allows the movement of the cable pull-out device towards the cable-side end of the end cap to be predetermined along a defined path during assembly. This is preferably, but not necessarily, a linear guide in the axial direction. In principle, however, any guide can be provided by the recesses, for example, a curved path that describes not only axial movement but also a circumferential rotation through a defined angular segment.

[0056] It can preferably be provided that the counter-connecting element of the locking tab, which limits the movement of the cable pull-out safety device in the pre-assembled state, simultaneously serves as a guide, particularly for the connecting element of the cable pull-out safety device. The counter-connecting element can thus preferably be designed as an elongated recess or slot in which the connecting element can move freely from the pre-assembled state to the cable-side end of the end cap.

[0057] In this way, the (elongated) recess or slot can advantageously fulfill a dual function, providing on the one hand a movement limitation (and optional guidance) for the cable pull-out protection and on the other hand a locking option for mounting on the connector housing.

[0058] Alternatively, the counter-connecting element of the locking tab, which limits the movement of the cable pull-out device in the pre-assembled state, can also be designed separately from the guide. The locking tab can thus, for example, have an elongated hole interrupted by a rib, which in a front section forms a separate receptacle for the connecting element of the cable pull-out device, thus limiting the movement of the cable pull-out device in the pre-assembled state, and in a rear section forms a guide so that, after release from the front section, the cable pull-out device is guided to the cable-side end of the end cap.

[0059] It should be emphasized at this point that a guiding function for the cable pull protection or its lateral extensions through the recesses is advantageous, but not absolutely necessary within the scope of the invention.

[0060] Furthermore, it should be noted that the distribution of the lateral extensions on the cable pull-out device and the recesses on the end cap can also be reversed, so that the end cap has at least one lateral extension and the cable pull-out device has at least one (elongated) recess or slot. It is also possible to omit a recess entirely if the cable pull-out device is supported at least at two positions along the axial direction on an inner surface of the end cap (e.g., by having at least two lateral extensions arranged offset from each other in the axial direction). In addition, a lateral extension and a recess can optionally be omitted altogether if the outer surface of the cable pull-out device is guided directly along the inner surface of the end cap.

[0061] According to the invention, the cable pull-out safety device is locked in a pre-assembly position within the end cap in the pre-assembly state of the end assembly, in particular in a connector-side end section of the end cap.

[0062] According to the invention, said locking mechanism is effected by at least one locking means formed in the end assembly.

[0063] The locking mechanism allows the movement of the cable pull-out device within the end cap to be not only limited but also clearly defined in the pre-assembled state (particularly in the axial direction, but preferably also in the lateral or radial direction and / or circumferential direction). A correspondingly locked position can further simplify assembly, as the cable pull-out device is thus in a known and defined state, at least at the beginning of the assembly process.

[0064] According to the invention, the locking means is a locking lug or other protrusion on the inner surface of the end cap to form a stop for the cable pull-out protection, in particular a stop for an end face, for example a flange-shaped end face of the cable pull-out protection.

[0065] Preferably, at least two locking elements can be provided for the end cap, which are arranged in a circumferentially spaced manner, for example, opposite each other. In principle, any number of such locking elements can be provided, i.e., for example, two, three, four, five, six or even more locking elements, which are spaced apart from each other circumferentially, for example, equidistantly distributed around the circumference.

[0066] The locking means can also be configured in pairs, with, for example, a first pair of locking means (e.g., locking lugs) arranged laterally next to the aforementioned recess, so that the recess, in particular the elongated hole, is located between the locking means of the common pair. Preferably, in this case, each of the aforementioned recesses can be laterally surrounded by a pair of locking means, which can be advantageous for the unlocking described below during the assembly of the end assembly.

[0067] In an advantageous embodiment of the invention, it can be provided that the locking mechanism of the cable pull-out protection can be unlocked during the assembly of the termination assembly on the connector housing in order to release the mobility of the cable pull-out protection from the pre-assembly position towards the cable-side end of the termination cap.

[0068] The unlocking can be done manually, for example by a tool, but preferably indirectly or directly through the connector housing.

[0069] In particular, it can therefore be provided that at least one section of the connector housing is able to unlock the locking means during assembly (preferably a section of the connector housing that leads in the assembly direction, such as the "counter-locking means" of the connector housing mentioned below).

[0070] The section of the end cap containing the locking elements can be elastically movable, in particular elastically deflectable / movable in the lateral or radial direction, so that the end cap can be at least temporarily spread open during assembly to release the locking mechanism by lifting the locking elements. Alternatively or additionally, it can be provided that at least a section of the cable pull-out device is elastically movable, at least in the area of ​​the locking elements, in particular elastically deflectable / movable in the lateral or radial direction, so that the cable pull-out device can be compressed or squeezed together at least temporarily during assembly to release the locking mechanism.

[0071] The locking mechanism of the cable pull-out protection can preferably be unlocked non-destructively during the assembly of the end cap onto the connector housing (for example, by the elastic movement of the section of the end cap containing the locking means, as described above). However, a destructive and therefore generally permanent unlocking method, for example, by breaking off a predetermined breaking point or similar, can also be provided (less preferred). For example, the locking means / latch can also be broken off in a controlled manner to unlock the cable pull-out protection during assembly.

[0072] In a further development of the invention, it can be provided that the cable pull-out protection is movable during the assembly of the end cap on the connector housing up to a cable-side end section of the end cap, preferably to an end position, in particular to an end position in a cable-side end section of the end cap.

[0073] Preferably, the cable pull-out protection is fixed to the cable in the cable-side end section, i.e., for example in the end position, in particular by frictional locking.

[0074] It may be provided that the cable pull-out device is fixed in the end cap in its final position. This (in itself optional) fixing can be achieved, for example, by a snap-fit ​​connection between the cable pull-out device and the end cap in the final position. However, the cable pull-out device can also be fixed in its final position by the connector housing itself, by being clamped between the connector housing and a stop in the end cap. Thus, the cable pull-out device is preferably pressed in its final position by the connector housing (preferably by the locking mechanism of the connector housing or another section of the connector housing that extends forward in the assembly direction) against a stop formed at the cable-side end of the end cap, for example, against a step.

[0075] The cable pull-out restraint can be designed with circumferentially distributed fixing tabs (optionally with fastening hooks at the free ends). The fixing tabs can be elastic in the lateral or radial direction.

[0076] It can be provided that the fixing tabs, in their mechanically relaxed state, define an inner circumference that is smaller than the outer circumference of the cable, so that sliding them onto the cable causes mechanical tension on the fixing tabs, resulting in a force-fit attachment to the cable. Additionally or supplementarily, it can also be provided that the fixing tabs are pressed against the cable with increasing pressure through mechanical interaction with the end cap during the movement of the cable pull-stop into its final position. For this purpose, for example, the fixing tabs can be inserted into an axial section of the end cap that tapers towards the cable end (e.g., a linear, curved, and / or stepped tapering).

[0077] It should be noted that the movement of the cable pull-out device during installation does not necessarily have to extend to its final position, or at least not until it reaches a stop or other point of fixation in the cable-side end section of the termination cap. The movement of the cable pull-out device may, for example, already be limited by a sufficiently secure fit to the cable (sheath). Therefore, it may be sufficient to move the cable pull-out device towards the cable-side end of the termination cap during installation until the intended secure fit is achieved. A remaining axial play towards the cable-side end of the termination cap allows for tolerance compensation and, if necessary, even makes the termination assembly usable for different cable diameters.

[0078] In a further development of the invention, it can also be provided that the end assembly in the pre-assembly state has, in addition to the cable pull-out protection, further connectors or other components that are securely connected, in particular a cable seal and / or housing seal that is securely connected to the end cap and / or the cable pull-out protection.

[0079] The other components, such as the cable seal and / or the housing seal, can be connected to the cable pull-out protection or the end cap, for example, by material bonding (preferred), form-fitting and / or force-fitting.

[0080] Preferably, an elastomer can be injection-molded onto the end face (e.g., at the connector-side end) of the cable pull-out device to form a seal (e.g., cable seal). In particular, a two-component injection molding process can be used to bond the other component to the cable pull-out device and / or end cap.

[0081] Because additional components are securely attached to the end cap, the assembly of the cable connector assembly can be further simplified.

[0082] In an advantageous embodiment of the invention, it can be provided that the end cap and the cable pull-out safety device are each designed in a ring or sleeve shape and each have a cable passage for the cable.

[0083] The side walls of the end cap and / or cable pull safety device may have any slots (for example, longitudinal slots) or other recesses / recesses and / or protrusions.

[0084] In principle (in a less preferred embodiment), the end cap and / or the cable pull-out device can also be designed as a partially annular shape or as a continuously slotted sleeve. For example, a longitudinal slot extending completely through the end cap or cable pull-out device in the axial direction can be provided. Preferably, however, the end cap and / or cable pull-out device are completely annular or closed around the circumference, at least in one axial section (e.g., in a flange-like end section).

[0085] It should be noted here that the termination assembly, cable pull-out device, and / or end cap do not necessarily have to be (hollow) cylindrical, but can, in principle, have any cross-sectional geometry. Thus, rectangular or other cross-sectional geometries are also possible, although the invention is described below primarily using hollow cylindrical cross-sectional geometries. This is intended only to facilitate understanding of the invention and does not restrict the claimed subject matter to a cross-sectional geometry that is at least substantially round. Therefore, insofar as terms such as "radial" or "round" are used below, those skilled in the art can, in case of doubt, generalize or substitute corresponding terms that also apply to or include other cross-sectional geometries.

[0086] The cable pull-out protection is preferably incorporated at least partially within the end cap.

[0087] The invention also relates to a cable connector arrangement, in particular a cable connector arrangement for high-voltage technology, comprising a termination assembly according to the preceding and following embodiments, the connector housing and the cable, wherein the termination cap is mounted on the connector housing and the cable pull-out protection is attached to the cable.

[0088] The secure attachment of the cable pull-out device to the end cap in the pre-assembly state and the subsequent "automatic" movement of the cable pull-out device towards the cable-side end in the end cap during assembly optimizes the overall assembly process, which can be particularly advantageous in mass production.

[0089] The cable connector assembly or termination unit is particularly well-suited for use with high-voltage connectors, although the specific connector type and application are not essential. Therefore, the cable connector assembly or termination unit is also particularly well-suited for use in high-frequency technology, for example, for data connectors.

[0090] The invention also relates to a method for assembling a cable connector arrangement according to claim 13.

[0091] The locking tab is designed to have a counter-connecting element for a connecting element of the cable pull-out safety device in order to limit the mobility of the cable pull-out safety device in the pre-assembly state at least in the axial direction (or in or against the assembly direction).

[0092] Advantageously, the work steps to be carried out by a cable assembly manufacturer or installer can be reduced by combining the cable pull-out protection and end cap into a single termination assembly, thus reducing assembly time and costs. In this way, at least two assembly steps are advantageously combined.

[0093] The proposed procedure for assembling the cable connector assembly may, in principle, include any further process steps (in a suitably appropriate sequence), such as in particular: The assembly of the cable with the termination assembly and the connector housing and / or other connector components (i.e., for example, inserting the cable into the termination cap, the cable pull-out device, and the connector housing); the stripping of the cable insulation, at least in sections; the mounting of contact elements on electrical conductors of the cable; the mounting of a support sleeve on the cable; the processing of a cable shield braid of the cable, e.g., folding the cable shield braid over the support sleeve; the crimping or crimping of an outer conductor onto the cable shield braid and / or the support sleeve; as well as other standard process steps in the context of connector assembly.

[0094] It should be emphasized that the process steps for assembling the cable connector arrangement do not necessarily have to be carried out in the order in which they are first described or mentioned in the description or in the patent claims. Therefore, individual process steps or groups of process steps may be interchangeable, provided this is not technically impossible. Process steps may also be combined, divided into separate intermediate steps, or supplemented with intermediate steps. Furthermore, the process described below is not necessarily exhaustive and may be supplemented with additional process steps, including those not mentioned here.

[0095] Advantageously, the final assembly has two positions or two states: a pre-assembly state or pre-assembly position of the cable pull-out device in the end cap, especially in the delivery state; and a final assembly state or final position of the cable pull-out device in the end cap when the end cap is fully mounted on the connector housing.

[0096] The final assembly state can be achieved, for example, by spreading the corresponding locking tabs of the end cap on the connector housing to (at least temporarily) release the cable pull-out device within the end cap. The cable pull-out device can then be moved, directly or indirectly, by means of the connector housing, into the position attached to the cable (preferably, but not necessarily, the "final position") within the end cap. Preferably, in its final position, the cable pull-out device is sufficiently engaged with the cable, particularly the cable sheath, to secure the cable to the connector housing according to its intended function.

[0097] Features described in connection with one of the subject matter of the invention, in particular the inventive termination assembly, the inventive cable connector arrangement, the inventive method, and the inventive device, can also be advantageously implemented for the other subject matter of the invention. Likewise, advantages mentioned in connection with one of the subject matter of the invention can also be understood to relate to the other subject matter of the invention.

[0098] It should also be noted that terms such as "comprehensive," "exhibiting," or "with" do not exclude other characteristics or steps. Furthermore, terms such as "a" or "the," which indicate a singular number of steps or characteristics, do not exclude a plurality of characteristics or steps—and vice versa.

[0099] In a purist embodiment of the invention, however, it may also be provided that the features introduced in the invention with the terms "comprising," "comprising," or "with" are exhaustively listed. Accordingly, one or more lists of features within the scope of the invention may be considered complete, for example, for each claim. The invention may, for instance, consist exclusively of the features mentioned in claim 1.

[0100] It should be noted that designations such as "first" or "second" etc. are primarily used for the purpose of distinguishing between the respective device or process features and are not necessarily intended to indicate that features are mutually dependent or related to each other.

[0101] Furthermore, it should be emphasized that the values ​​and parameters described herein include deviations or fluctuations of ±10% or less, preferably ±5% or less, more preferably ±1% or less, and most preferably ±0.1% or less of the respective named value or parameter, provided that such deviations are not excluded in the practical implementation of the invention. The specification of ranges by initial and final values ​​also includes all those values ​​and fractions that are encompassed by the respective named range, in particular the initial and final values ​​and a respective mean value.

[0102] Exemplary embodiments of the invention are described in more detail below with reference to the drawings. The figures show preferred embodiments in which individual features of the present invention are combined with one another. Features of an exemplary embodiment can also be implemented independently of the other features of the same exemplary embodiment and can therefore be readily combined by a person skilled in the art to form further meaningful combinations and sub-combinations with features of other exemplary embodiments.

[0103] In the figures, functionally identical elements are provided with the same reference symbols.

[0104] They show schematically: Fig. 1 shows an end cap and a cable pull-out device according to an embodiment of the invention, each shown separately from each other in a perspective view; Fig. 2 shows an end assembly comprising the end cap and the cable pull-out device according to Figure 1exhibits, in a pre-assembled state, in a perspective view; Fig. 3 the final assembly of the Figure 2 in a cutaway side view; Fig. 4 a cable connector assembly with the termination assembly of the Figure 2 in their pre-assembled state, in a cutaway side view; Fig. 5 the cable connector arrangement of the Figure 4 during the assembly of the end cap on the connector housing, in a cutaway side view; Fig. 6 the cable connector arrangement of the Figure 4 in a fully assembled state on the cable or on the connector housing, in a cutaway side view; and Fig. 7 an end cap and a cable pull-out safety device connected to a cable seal in a material-bonded manner according to a variant of the invention.

[0105] In the Figures 1 to 6 An exemplary first embodiment of the invention is presented. Figures 1 to 3 show the end assembly 1 of the [unclear text]. Figures 4 to 6 cable connector arrangement shown in more detail 2.

[0106] The termination assembly 1 has an end cap 3 and a cable pull-out safety device 4, which are in Figure 1 are shown separately in a state that is not yet connected. In contrast, the Figures 2 and 3 a pre-assembled state of the end assembly 1 in which the cable pull safety device 4 is securely connected to the end cap 3.

[0107] The end cap 3 can be mounted on a cable-side end 5 of a connector housing 6 of the cable connector assembly 2, as described below. In simplified terms, the end cap 3 can be snapped into the connector housing 6 according to the described embodiment.

[0108] Furthermore, the cable pull safety device 4 can be attached to a cable 7 of the cable connector arrangement 2, which will also be described in more detail below.

[0109] It should be mentioned at this point that this is in the Figures 4 to 6 The illustrated cable 7, the connector housing 6, and all other components of the cable connector arrangement 2 are shown only as examples and schematically. In principle, the invention can be advantageously used with any type of cable and connector.

[0110] In the Figures 2 and 3 In the depicted pre-assembly state of the termination assembly 1, the end cap 3 is not yet mechanically connected to the connector housing 6, nor is the cable pull-out device 4 mechanically connected to the cable 7. This pre-assembly state could, for example, be a delivery state, based on which an installer or a device subsequently connects the termination assembly 1 to the cable 7 and the connector housing 6.

[0111] In the exemplary embodiments, the end cap 3 and the cable pull-out device 4 are each designed in the shape of a sleeve and each have a cable entry 8 for the cable 7. The cable pull-out device 4 is accommodated within the end cap 3.

[0112] The cable pull-out device 4 has at least one connecting element or a lateral extension 9 (in the embodiments of Figures 1 to 12a exactly two lateral extensions 9, which are spaced apart from each other in the circumferential direction U or are arranged on opposite circumferential sections of the cable pull-out device 4, see also Figures 1 to 12a). Figure 3 The lateral extensions 9 engage with the end cap 3 in the pre-assembled state of the end assembly 1 (see in particular the Figures 2 and 3), to limit the movement of the cable pull-out restraint 4 in the axial direction A. For this purpose, the lateral extensions 9 of the cable pull-out restraint 4 engage in respective mating connections or elongated holes 10 in the side wall 11 of the end cap 3 in the embodiments shown in Figures 1 to 12a. It should be noted that these do not necessarily have to be elongated holes 10, nor do they necessarily have to be openings in the housing wall of the end cap 3 – square, round, or other recesses and / or indentations (e.g., grooves in the side wall 11) as an alternative to a complete opening, or inner-sheath-side protrusions (e.g., webs or ribs to provide a guide channel) are also possible. Furthermore, it should be emphasized that the connecting elements of the cable pull-out restraint 4 can optionally also be designed as recesses or elongated holes, and the mating connections of the end cap 3 as lateral extensions.The variant shown in the figures is therefore only to be understood as an example.

[0113] By means of the specific distribution or arrangement of the connecting means 9 and counter-connecting means 10 along the circumference of the end cap 3 and the cable pull-out device 4, an anti-rotation device and / or mechanical coding can optionally be provided to ensure that the cable pull-out device 4 can only be mounted in a single orientation or in specific, predetermined orientations in the end cap 3 (the same applies to the mounting of the connector housing 6 on the end cap 3).

[0114] In the exemplary embodiments, the lateral extensions 9 are accommodated without play in the elongated holes 10 in the circumferential direction U to prevent relative rotation of the cable pull-out device 4 in the end cap 3 – however, this is not strictly necessary. Furthermore, the cable pull-out device 4 is also accommodated without play in the lateral and radial directions R within the end cap 3 – which is advantageous, but again not strictly necessary.

[0115] To limit movement in the axial direction A, the lateral extensions 9 have locking surfaces 9' on their sides facing the connector-side end section 12, which are able to abut corresponding counter-locking surfaces 10' of the elongated holes 10. The counter-locking surfaces 10' are formed on the connector-side inner surfaces of the elongated holes 10 (see, among others, [reference]). Figure 1 and 6 ).

[0116] In addition to the movement limitation provided by the combination of lateral extensions 9 and elongated holes 10, the exemplary embodiments also provide that the cable pull-out safety device 4 is in a pre-assembly position P 0 in the connector-side end section 12 of the end cap 3 in the pre-assembly state (see figure). Figures 2 to 4) is locked. The cable pull-out safety device 4 can thus be locked in the pre-assembly position P0, preferably completely immovably or at least substantially immovably. The locking can preferably be enabled by at least one locking element formed in the end assembly 1. In the exemplary embodiments, two pairs of locking lugs 13 are provided for this purpose, wherein the locking lugs 13 of a common pair are arranged opposite each other laterally next to the elongated holes 10. The locking lugs 13 are able to effect the locking with a flange section 14 or another suitable outer sheath-side structure of the cable pull-out safety device 4. In principle, any number of locking elements or locking lugs 13 can be provided, optionally even just a single locking element or a single locking lug 13. Insofar as several locking elements orIf locking lugs 13 are provided, these can advantageously be spaced apart from each other around the circumference on the side wall 11 of the end cap 3.

[0117] For the aforementioned locking of the end cap 3 to the connector housing 6, the end cap 3 has at least one locking element for locking with a corresponding counter-locking element of the connector housing 6. In the exemplary embodiments, two locking elements or counter-locking elements are provided, spaced apart from each other circumferentially. The locking element of the end cap 3 is a locking tab 15 that is elastic in the lateral and radial directions R and has a locking recess 16. The counter-locking element is, for example, designed as a locking projection of the connector housing 6, such as a locking arm 17, and is able to lock within the locking recess 16 of the locking tab 15 (see Figure 1). Figure 6However, it can also be provided that the locking tab 15 or the locking element of the end cap 3 has a locking projection and, on the other hand, the counter-locking element of the connector housing 6 has a locking recess.

[0118] It is particularly advantageous that the recesses or elongated holes 10 for connection with the lateral extension 9 of the cable pull-out safety device 4 correspond to the locking recesses 16 for the counter-locking element or the locking arms 17 of the connector housing 6, as shown in the exemplary embodiments. Generally, the locking surface 15 of the end cap 3 is provided with the counter-connecting element 10 (i.e., the aforementioned recess or elongated hole 10 or a lateral extension) to provide an advantageous dual function of pre-locking and final locking position. To provide the lateral or radial elasticity of the locking surface 15, longitudinal slots 18 are provided on both sides of the locking surface 15 in the side wall of the end cap 3.

[0119] The invention provides that the cable pull-out safety device 4 is movable from the connector housing 6 towards a cable-side end 19 of the end cap 3 facing away from the connector housing 6 during the assembly of the end cap 3 on the connector housing 6. The movement is described in a comparison of the Figures 5 and 6 clearly visible and can be supported by the axial guiding function of the elongated holes 10.

[0120] As already mentioned, the cable pull-out safety device 4 is preferably locked in the pre-assembly state or in the pre-assembly position P0. This lock can be released by the connector housing 6 during the assembly of the termination assembly 1 on the connector housing 6 in order to initially release the movement of the cable pull-out safety device 4 from the pre-assembly position P0 towards the cable-side end 19 of the termination cap 3. This process is illustrated by example in Figure 5depicted.

[0121] In the exemplary embodiments, the counter-locking element or locking arm 17 of the connector housing 6 serves to lift the locking tab 15 and thus simultaneously also the locking lugs 13 of the end cap 3 arranged next to the elongated hole 10, so that the locking mechanism of the cable pull-out device 4 is released. Subsequently, the cable pull-out device 4 is moved further in axial direction A by the connector housing 6, for example by the counter-locking element or the locking arm 17, during the further assembly process, until the cable pull-out device 4 reaches an end position P 1 (see Figure 1). Figures 5 and 6 ) at a cable-side end section of the end cap 3. In the end position P 1, the cable pull-out safety device 4 is force-fitted onto the cable 7.

[0122] For fixing the cable pull safety device 4 to the cable 7, the cable pull safety device 4 in the exemplary embodiments has circumferentially distributed fixing tabs 20 which are pressed against the cable sheath 21 of the cable 7 by mechanical interaction with the end cap 3 during the movement of the cable pull safety device 4 into the end position P 1 with increasing pressing force.

[0123] In the Figures 4 to 6 Within the connector housing 6, a cable seal 22 is shown as an example as a further component of the cable connector arrangement 2; this can alternatively be omitted or may be provided as a component of the termination assembly 1, as described below. Figure 7 hinted at.

[0124] Figure 7 illustrates a variant of the invention (for example, this corresponds to the one in Figure 7 The illustrated embodiment is fundamentally the same as the embodiment of Figures 1 to 6) to illustrate by way of example that the cable seal 22 in the pre-assembled state of the termination assembly 1 can also be securely connected to the end cap 3 and / or the cable pull-out device 4, for example by positive locking, force locking and / or material locking. In Figure 7 The cable seal 22 is attached, for example, to the connector-side end face of the cable pull-out protection 4 (e.g., sprayed on as part of a two-component process).

[0125] Advantageously, in a method for assembling the cable connector arrangement 2, it can be provided that the cable 7 and the connector housing 6 are first provided (it can optionally also be provided that the cable 7 is first pre-processed, for example by partially stripping it and fitting it with one or more of the components of the cable connector arrangement 2, i.e., for example, the connector housing 6 or the termination assembly 1).

[0126] During assembly, the termination assembly 1 can advantageously be treated as if it were a single component, since the termination cap 3 and the cable pull-out device 4 (and optionally other connector components, such as the cable seal 22) are already securely connected to each other in the pre-assembled state. Assembly can therefore be particularly easy for the assembler or an assembly device. The termination cap 3 can be mounted on the connector housing 6, while the cable pull-out device 4 is simultaneously moved from the connector housing 6 towards the cable-side end 19 of the termination cap 3, which is furthest from the connector housing 6, preferably while the cable pull-out device 4 is simultaneously fastened to the cable 7.

[0127] It should also be mentioned that, in addition to a locking mechanism, a screw connection or, in principle, any fastening technique can be used to attach the end cap 3 to the connector housing 6, for example, crimping the end cap 3 onto the connector housing 6. Combinations of different fastening techniques are therefore also possible within the scope of the invention. Essentially, the cable pull-out device 4 is securely connected to the end cap 3 in the pre-assembly state and, during assembly, can be moved directly or indirectly from the connector housing 6 or another component of the cable connector assembly 2 towards the cable-side end 19 of the end cap 3.

Claims

1. A termination assembly (1) for a cable connector arrangement (2), comprising a termination cap (3) which can be mounted on a cable-side end (5) of a connector housing (6) of the cable connector arrangement (2), and a cable strain relief means (4) which can be fastened to a cable (7) of the cable connector arrangement (2), - wherein, in a preassembly state of the termination assembly (1), in which the termination cap (3) is not mechanically connected to the connector housing (6), the cable strain relief means (4) is captively connected to the termination cap (3), - and wherein, during the mounting of the termination cap (3) on the connector housing (6), the cable strain relief means (4) can be moved by the connector housing (6) in the direction of a cable-side end (19) of the termination cap (3), wherein the termination cap (3) can, at a connector-side end section (12), be latched together with the connector housing (6) and for this purpose has at least one latching means designed as a latching tab (15) for latching together with a respective mating latching means (17) of the connector housing (6), wherein the latching tab (15) also has a mating connecting means (10) for a connecting means (9) of the cable strain relief means (4) in order to limit, at least in the axial direction (A), the movability of the cable strain relief means (4) in the preassembly state, wherein in the preassembly state of the termination assembly (1), the cable strain relief means (4) is locked in a preassembly position (P0) within the termination cap (3) in the connector-side end section (12) of the termination cap (3), by at least one locking means (13) formed in the termination assembly (1), characterized in that the locking means (3) is a latching lug or some other elevation on the inner lateral surface of the termination cap (3) in order to form a stop for the cable strain relief means (4).

2. The termination assembly (1) as claimed in claim 1, characterized in that the termination cap (3) has at least two latching means (15) circumferentially spaced apart from one another for latching together with a respective mating latching means (17) of the connector housing (6).

3. The termination assembly (1) as claimed in claim 1 or 2, characterized in that the latching tab (15) of the termination cap (3) a) has a latching recess (16) for a mating latching means (17), which is designed as a latching elevation, of the connector housing (6); or b) has a latching elevation for a mating latching means (17), which is designed as a latching recess, of the connector housing (6).

4. The termination assembly (1) as claimed in one of claims 1 to 3, characterized in that the connecting means (9) has a blocking surface (9') and the mating connecting means (10) has a mating blocking surface (10') which are able to butt against one another in order to limit, at least in the axial direction (A), the movability of the cable strain relief means (4) in the preassembly state when the cable strain relief means (4) is captively connected to the termination cap (3).

5. The termination assembly (1) as claimed in claim 4, characterized in that a) the connecting means of the cable strain relief means (4) is designed as a lateral extension (9), having the blocking surface (9'), and the mating connecting means of the termination cap (3) is designed as a receptacle (10), having the mating blocking surface (10'), for the lateral extension (9); or b) the mating connecting means (10) of the termination cap (3) is designed as a lateral extension, having the mating blocking surface (10'), and the connecting means (9) of the cable strain relief means (4) is designed as a receptacle, having the blocking surface (9'), for the lateral extension.

6. The termination assembly (1) as claimed in one of claims 1 to 5, characterized in that the cable strain relief means (4) and the termination cap (3) form a mutual guiding function for the movement of the cable strain relief means (4) in the direction of the cable-side end (19) of the termination cap (3).

7. The termination assembly (1) as claimed in claim 6, characterized in that the at least one latching tab (15) has the guiding function for the movement of the cable strain relief means (4) in the direction of the cable-side end (19) of the termination cap (3), in particular a recess (10), preferably an elongate hole (10), for receiving a projection of the cable strain relief means (4), preferably for receiving the connecting means (9).

8. The termination assembly (1) as claimed in one of claims 1 to 7, characterized in that the locking of the cable strain relief means (4) is unlockable by the connector housing (6) during the mounting of the termination assembly (1) on the connector housing (6) in order to enable the movability of the cable strain relief means (4) proceeding from the preassembly position (P0) in the direction of the cable-side end (19) of the termination cap (3).

9. The termination assembly (1) as claimed in one of claims 1 to 8, characterized in that the cable strain relief means (4), during the mounting of the termination cap (3) on the connector housing (6), is movable as far as a cable-side end section of the termination cap (3), preferably as far as an end position (P1) in the cable-side end section, in order to fix the cable strain relief means (4) to the cable (7) in a force-fitting manner.

10. The termination assembly (1) as claimed in one of claims 1 to 9, characterized by a cable seal (22) which is captively connected to the termination cap (3) and / or the cable strain relief means (4) in the preassembly state, preferably a cable seal (22) which is connected in a materially bonded manner to the cable strain relief means (4).

11. The termination assembly (1) as claimed in one of claims 1 to 10, characterized in that the termination cap (3) and the cable strain relief means (4) are each of sleeve-shaped design and each have a cable feedthrough (8) for the cable (7), wherein the cable strain relief means (4) is received at least sectionally within the termination cap (3).

12. A cable connector arrangement (2), in particular cable connector arrangement (2) for high-voltage technology, having a termination assembly (1) as claimed in one of claims 1 to 11, the connector housing (6) and the cable (7), wherein the termination cap (3) is mounted on the connector housing (6) and the cable strain relief means (4) is fastened to the cable (7).

13. A method for assembling a cable connector arrangement (2), in particular a cable connector arrangement (2) for high-voltage technology, having at least the following method steps: - providing a cable (7) and a connector housing (6); - providing a termination assembly (1) which has a termination cap (3) and a cable strain relief means (4) which is captively connected to the termination cap (3); - mounting the termination cap (3) on the connector housing (6) while the cable strain relief means (4) is moved by the connector housing (6) in the direction of a cable-side end (19) of the termination cap (3) and is preferably fastened to the cable (7); and - latching the termination cap (3) to a connector-side end section (12) of the connector housing (6) by means of at least one latching means, designed as a latching tab (15), of the termination cap (3) and a respective mating latching means (17) of the connector housing (6), wherein the latching tab (15) has a mating connecting means (10) for a connecting means (9) of the cable strain relief means (4) in order to limit, at least in the axial direction (A), the movability of the cable strain relief means (4) in the preassembly state, wherein in the preassembly state of the termination assembly (1), the cable strain relief means (4) is locked in a preassembly position (P0) within the termination cap (3) in the connector-side end section (12) of the termination cap (3), by at least one locking means (13) formed in the termination assembly (1), characterized in that the locking means (3) is a latching lug or some other elevation on the inner lateral surface of the termination cap (3) in order to form a stop for the cable strain relief means (4).

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