Plug connector and plug connector assembly

Abstract

The invention relates to a modular plug connector for connecting to a mating plug connector, comprising: a housing (20) having a plurality of cup-shaped slots (21), each of which is defined by a surrounding wall assembly (22); at least one plug-in module 7 which is arranged in the slot 21 and which is designed to receive at least one plug-in element 12, preferably a plurality of plug-in elements, in particular in a separation-proof manner; and a mechanical coding device 4, which is designed between each slot 21 and each inserted plug-in module 7 in order to provide a defined association between the plug-in module 7 and the slot 21, the mechanical coding device 4 having a first coding element 41 and a second coding element 42 complementary to the first coding element 41, wherein the first coding element 41 is arranged on the cup-shaped slot 21 and the second coding element 42 is arranged on the plug-in module 7, and wherein each first and the second coding element 41, 42 complementary thereto are differently designed and / or arranged in different positions on the slot 21.

Description

Technical Field

[0001] The invention relates to a modularly designed plug-in connector for connection to a mating plug-in connector and to a plug-in connector assembly having a plug-in connector and a mating plug-in connector. Background Art

[0002] A plug connector assembly usually comprises a plug connector and a mating plug connector. When the plug connector and the mating plug connector are connected, which is achieved, for example, by means of joint plugging along an axis or along a plugging direction, a plug connection is achieved. Such plug connectors are used, for example, in the automotive sector to connect different components or controllers or cable harnesses to one another. The assembly of the plug connector is often still carried out with a high level of manual effort. Automation is difficult here due to the complexity of the cable harness. It is desirable to provide an improved solution, in particular an improved automation possibility.

[0003] DE 10 2011 006 195 A1 discloses a modular electrical plug connector assembly in which a plurality of plug-in modules are first arranged relative to one another in a module carrier and are subsequently non-detachably connected to the module carrier by a joining process. Summary of the invention

[0004] The modularly constructed plug-in connector according to the invention with the features of claim 1 has the advantage that an automated assembly of the plug-in connector with plug-in modules is possible. This makes it possible to increase the cost potential and significantly simplify the assembly of the plug-in connector. Various plug-in modules with various plug-in elements arranged therein can be used. This allows the assembly of the plug-in connector to be easily, quickly and flexibly adapted to different types of mating plug-in connectors or their mating plug-in elements. In other words, each plug-in module can be equipped with different plug-in elements (or at least one plug-in element) depending on the type of mating plug-in connector. Due to the modular structure, the plug-in modules can then be arranged or placed in the plug-in connector or its housing manually or automatically.

[0005] This is achieved according to the present invention in the following manner, that is, a modularly constructed plug-in connector has a housing having a plurality of preferably cup-shaped slots. The slots are respectively defined by surrounding wall components. The plug-in connector also has at least one plug-in module, which is arranged in the slot and is configured to receive at least one plug-in element in a particularly anti-separation manner. Preferably, a plurality of plug-in elements are received in the plug-in module. In addition, the plug-in connector according to the present invention includes a mechanical coding device, which is configured between each slot and each inserted plug-in module to provide a specified association between the plug-in module and the slot. The mechanical coding device includes a first coding element and a second coding element configured complementary to the first coding element. The first coding element is arranged at the cup-shaped slot, and the second coding element is arranged at the plug-in module. Here, each first coding element of each slot or each plug-in module and the second coding element configured complementary thereto are configured differently and / or arranged at different positions at the slot or the plug-in module.

[0006] In this case, “different position” is to be understood to mean that at least some of the mechanical encoding devices or first / second encoding elements differ in position from all other encoding devices or first / second encoding elements.

[0007] In other words: a single plug-in module can only be inserted into a single slot. Therefore, in a housing with a specified number of slots, a separate plug-in module is required for each slot, which is in turn equipped or can be equipped with at least one plug-in element, preferably a plurality of plug-in elements. If, for example, nine slots are provided, nine different first coding elements or first coding devices are provided, and correspondingly nine different plug-in module types with complementary second coding elements or second coding devices are required, wherein each plug-in module type can only be correctly inserted into a single slot. The individual plug-in modules can be equipped with plug-in elements in whole or in part in the same way (with the same plug-in element) or differently.

[0008] It has surprisingly been found that, although the number of different plug-in module types is increased by individual coding of the slots and the corresponding plug-in modules (a separate plug-in module type with a corresponding second coding means is required for each slot, which increases the number of variants), the automatability of the assembly of the slots and the plug-in modules with plug-in elements is advantageously simplified by this design. In addition, the risk of incorrect assembly is reduced even in the case of a high variety of variants in the assembly line. This is because the assembly of the plug-in modules with plug-in elements can be flexibly adapted to the requirements of the respective customer, and the first and second coding elements or coding means advantageously prevent individual plug-in modules from being accidentally exchanged or accidentally positioned incorrectly in the wrong slot.

[0009] The encoding device can have a single first encoding element for each slot. However, it is also possible to arrange a plurality of first encoding elements at or in the slot, for example in a predetermined geometric arrangement or width, length and / or height relative to one another.

[0010] Surprisingly, despite the high variety of plug-in elements, different or arbitrary configurations can be realized within the housing or the plug connector housing using the assembly device, without having to develop and produce individual plug types for each customer requirement. More precisely, it can be achieved that, for example, most customer requirements in terms of the number and functionality of plug-in elements can be met for several different plug connector housings. For this purpose, the customer can arrange the desired plug-in elements in a plug module or predefine the arrangement. In other words: the customer can easily assemble his plug connector individually from the housing and the plug module to be assembled therein in a modular manner or in a modular manner, wherein the plug module can be individually equipped with plug elements. Since the plug module can be easily assembled and several housing types (for example for different numbers of plug modules) are known and tested and can be easily adapted to the corresponding mating plug connector housing, the development time can be significantly shortened compared to the individual development of the plug connector for the customer.

[0011] In addition, the processing time or assembly time for the plug connector can be significantly reduced. Because instead of assembling multiple plug elements (for example, more than 100 plug elements) individually and especially manually to each plug connector housing, the assembler can first assemble the plug module according to user needs. The plug module can be equipped with, for example, between one and 50, preferably between one and 26 plug elements. This number of plug elements can be well, easily and quickly realized, especially automated during assembly. Subsequently, the pre-installed plug module can be easily placed in the (plug connector) housing. The process can be easily automated. In other words: instead of manually directly assembling the plug element to the (plug connector) housing, the assembly process can be automated by first assembling the plug element, especially automatically, to the plug module and then assembling the plug module to the housing. The first and second coding elements ensure that the pre-installed plug module is assembled at the correct position.

[0012] Mechanical coding can be realized by different coding elements and / or different positions at the slot. Plug connectors are suitable not only for electrical but also for optical plug connections. The plug element can be selected, for example, from the group of electrical contact elements or optical elements (transmitting elements, receiver elements, optical coupling elements, etc.) or sensor elements or the like.

[0013] The wall element can be designed, for example, as a (slot) wall surrounding the slot, for example as a peripherally closed wall.

[0014] The plug-in module preferably has at least one, preferably a plurality of, chambers in which at least one plug-in element can be arranged in each case. It is possible to provide chambers of different sizes or chambers of the same size in the plug-in module.

[0015] The plug element is preferably primarily latched or can be primarily latched in the chamber by means of a primary locking device in order to provide a seal (e.g. against pulling out or moving out against the plugging direction). Such a primary latching mechanism can be provided, for example, by an elastically reversibly displaceable element on the plug element (e.g. a locking lance displaceable transversely to the plugging direction), which can latch onto an undercut in the chamber of the plug-in module or engage behind it. The opposite design is also conceivable (locking lance on the chamber, wherein the locking lance latches onto an undercut of the plug element).

[0016] Furthermore, further plug-in elements can be arranged in each plug-in module and any arbitrarily mountable plug-in module can be used for each individual slot.

[0017] The plug-in module arranged in the slot can be designed to receive different plug-in elements and / or different types of plug-in elements, depending on the mating plug-in connector and / or the intended use.

[0018] It can be provided that the (e.g. cup-shaped) slots are constructed or arranged in a matrix array in the housing. The matrix array can have, for example, at least two columns and at least two rows (2×2 matrix). The matrix array can have, for example, three columns and two rows (3×2 matrix) or, for example, three columns and three rows (3×3 matrix) or even more columns and / or rows. However, in principle, a single-row or single-column matrix array or housing is also possible, for example a 2×1 matrix or a 3×1 matrix, etc. In principle, even a 1×1 matrix can be conceivable.

[0019] A housing with a plurality of, for example, cup-shaped slots can be designed, for example, in one piece, that is, it can be designed integrally from a single piece, so that it cannot be disassembled into smaller units in a non-destructively releasable manner. If, for example, a housing with a different matrix arrangement is required (for example, a 3×2 matrix instead of a 3×1 matrix), it can be provided, for example, that the second 3×1 matrix is ​​not only coupled to the first 3×1 matrix, for example, by connecting elements. Rather, it can then preferably be provided that the separate housings are designed or manufactured as a 3×2 matrix.

[0020] The housing can be manufactured, for example, by an injection molding process. The housing can be manufactured, for example, from plastic.

[0021] It can be advantageously provided that, according to the slot to which the plug-in module is assigned or according to the coding device or according to the type of the second coding element, the plug-in module has different color designs or different colors. Thus, the user or the assembler can easily identify in which slot the plug-in module should be assembled. Particularly advantageously, different colors of the plug-in module are provided for each slot. This type of color design can be particularly easy and reliable to automatically assemble the plug-in module to the housing. This color design can be caused by the different colors of the materials used, such as plastics, when manufactured with an injection molding process, for example. Thus, the plug-in module can be manufactured easily and cost-effectively. Thus, in addition, the color design can be well identified from all directions and therefore also the type of the plug-in module or the type of the plug-in module, so that the plug-in module can be particularly easy and reliable to automatically assemble the plug-in module to the housing.

[0022] The expression "comprising" is used in this application synonymously with the expression "having", unless stated otherwise.

[0023] The dependent claims reveal preferred developments of the invention.

[0024] Preferably, the cup-shaped slots for the plug-in modules all have the same cross-section or the same external dimensions or the same external specifications. In particular, a plug-in matrix with the following slots can be realized at the housing, and the slots have the same cross-section or the same external dimensions or the same external specifications. It is thus advantageously possible to assemble the plug-in modules to the slots particularly easily and automatically. In addition, it is also advantageously possible to assemble the plug-in elements to the plug-in modules particularly easily and automatically in this way, for example, an assembly automatic device with a gripper can always use similar or even the same gripping width or gripping length, thereby reducing errors and shortening the cycle time. In addition, it is advantageously possible to optimize the mechanical stability of the housing in this way, because the cross-section can be selected so that, for example, there is particularly little deformation during the injection molding process of the housing. In addition, it is advantageously possible to manufacture the plug-in modules particularly easily and inexpensively by the same cross-section. Because, for example, the same injection molding mold can be used respectively, wherein, for example, the second coding element for each type of plug-in module can be produced in the injection molding mold in an easy manner by a displaceable element.

[0025] It goes without saying that the plug-in modules can also have the same cross-section or the same external dimensions or the same external specifications. The occupancy (Belegung) of the plug-in elements can be designed differently within the cross-section or external dimensions or external specifications of the individual plug-in modules. For example, different types of chambers, the number of chambers and the chamber cross-sections can be provided in each plug-in module. Thus, the user can select the assigned plug-in module for the specified slot, which has different occupancy with respect to the plug-in elements.

[0026] The cup-shaped receptacles are designed essentially as cuboids, which in particular all have a cross section of the same size.

[0027] The design as a cuboid can advantageously enable particularly easy assembly in an assembly robot. In addition, a particularly space-saving design of the housing can advantageously be achieved thereby.

[0028] Slight deviations from the ideal cuboid shape may occur, for example, due to rounded corners and / or due to the provision of a mechanical anti-twist device, which can be provided, for example, to prevent the plug-in module from being inserted into the slot with a 180° or 90° twist when placed in the slot (similar to the anti-twist device formed on the SIM card by a single chamfered corner).

[0029] The associated plug-in modules can also be constructed essentially as cuboids. The plug-in modules can, for example, all have the same large cross-section or the same size of external dimensions or the same size of external dimensions. This makes it easy to grab the plug-in modules, for example, manually or by means of an assembly robot.

[0030] According to another preferred design of the present invention, the first coding element is arranged at the slot only at the bottom area of ​​the cup-shaped slot pointing toward the mating plug-in connector. Here, each wall of the wall assembly of the cup-shaped slot is constructed at the remaining wall area or at the wall area without coding elements outside the bottom area. Therefore, except for the bottom area, a smooth wall of the slot can be realized, which particularly significantly simplifies the introduction process of the plug-in module into the cup-shaped slot. Therefore, the wall of the slot has no coding element and preferably no other introduction elements. In addition, it is advantageously simplified to manufacture the plug-in connector or the wall assembly of the slot. In addition, it is advantageous to arrange other functional elements at the plug-in module (for example, a displaceable secondary locking element) in this way, and these other functional elements will not be damaged in terms of their function by, for example, coding ribs that run completely along the wall or do not have to be designed in a complicated geometric shape.

[0031] The bottom region can extend, for example, along a maximum of 35% or a maximum of 25%, preferably a maximum of 20%, particularly preferably a maximum of 15% and very particularly preferably a maximum of 10% of the height of the corresponding wall. The height of the wall can be measured, for example, parallel to the plug-in direction of the plug-in module into the corresponding slot.

[0032] It is further preferred that an opening and a substantially circumferential inner flange are arranged at the bottom region of the slot, wherein the first coding element is arranged at or above the inner flange. The inner flange preferably covers an area of ​​less than 10% of the cross-sectional area at the bottom region of the slot. The first coding element can, for example, be arranged only at the wall in the immediate vicinity of the inner flange. The remaining wall region, in particular the wall region above the inner flange, can, for example, be free of a mechanical first coding element.

[0033] For example, for reasons of production technology, the inner flange can be interrupted briefly at one or more locations, for example along less than 10% of its main extension.

[0034] The inner flange advantageously provides an axial stop for the plug-in module inserted into the slot, so that the plug-in module is not inserted too far into the slot. In addition, the first coding element can advantageously be designed robustly by means of the inner flange. The opening advantageously causes at least one mating plug-in element of the mating plug-in connector to be coupled or connected to a plug-in element of the plug-in module.

[0035] The first coding element can be connected to the flange and / or to the wall or the wall component, for example. The first coding element can be formed in one piece with the flange and / or the wall or the wall component, for example.

[0036] Further preferably, for a reliable plugging process between the plug connector and the mating plug connector, an introduction aid is arranged between adjacent cup-shaped slots. The introduction aid is designed to guide and simplify the plugging process between the plug connector and the mating plug connector. In this way, for example, the risk of tilting between the plug connector and the mating plug connector is reduced. This also reduces the risk of damaging the mating plug element or plug elements when assembling the plug connector and the mating plug connector.

[0037] The introduction aid preferably has or includes at least one recess, which is designed to receive a sword or sword-shaped element of a mating plug connector. At least one recess (in particular all recesses) has a cross section that is smaller than the cross section of the slot. At least one recess is preferably configured in a slit-like manner. It is particularly preferred that a plurality of introduction aids are configured between the plug connector and the mating plug connector. It is particularly preferred that recesses of the introduction aid are respectively arranged between directly adjacent slots.

[0038] It can be provided that at least one recess is not designed continuously from the lower side of the housing to the upper side of the housing in a channel-like manner. At least one recess can be designed in a bag-like manner, in particular in the direction of the mating plug connector. This prevents the introduction of fluid media through the recess in the direction of the mating plug connector. It can be provided that a partition is arranged in at least one recess. In this way, at least one recess is only open on one side in the direction of the mating plug connector. Such a partition can, for example, also increase the stability of the recess, so that a wall of the recess with a smaller wall thickness can be implemented. At least one recess can extend further in the direction of the partition and open. In this way, deformations can be minimized, for example, when the housing is manufactured by injection molding.

[0039] In order to ensure the accurate positioning of the plug-in module in the slot, the plug-in connector further preferably comprises at least one alignment component between each slot and each inserted plug-in module. The alignment component is set up to ensure the final insertion position (e.g., x / y-direction placement, i.e., transverse to the plug-in direction) of the plug-in module in the cup-shaped slot. The alignment component preferably comprises (at least one) first alignment element at the cup-shaped slot and (at least one) second alignment element at the plug-in module.

[0040] The tolerance or tolerance dimension of the alignment component is preferably smaller than the tolerance of the mechanical encoding device. It is further preferred that the tolerance dimension of the alignment element is at least 20% smaller, preferably at least 10% smaller than the tolerance dimension of the encoding element. The tolerance dimension here not only relates to the position but also to the dimensions in terms of the width and / or length and / or height of the respective alignment element. The provision of the alignment element further advantageously results in the encoding device or the encoding device being mechanically relieved.

[0041] In other words: the encoding device ensures that the plug-in module can only be correctly inserted into the slot (in particular in the axial direction) if the plug-in module adapted to the slot is correctly introduced into the slot. If this is not the case, for example, the plug-in process of the plug-in module into the slot will not be carried out until the end (for example in the plug-in direction, i.e. in the axial direction). The alignment device ensures that, in particular at the end of the plug-in process of the plug-in module into the adapted slot, the plug-in module is correctly positioned within the slot in a plane perpendicular to the plug-in direction (for example in the xy plane when the plug-in direction is the z direction) and is also fixedly positioned in the slot even under mechanical influences (for example vibrations or thermal alternating loads). In this way, a reliable and damage-free joint plug-in connection with a mating plug connector can be achieved by easy means.

[0042] This advantageously brings about a functional separation in an easy manner.

[0043] As an alternative or in addition, it can be provided that the alignment component has a lower or higher height (particularly viewed in the plug-in direction) than the encoding device (for example at least 10% higher or lower, or for example at least 1 mm higher or lower).

[0044] If the alignment component is higher than the encoding device, then when the plug-in module is installed, its orientation (especially in the xy plane) can advantageously be set correctly first, and then the encoding device can be used to identify or ensure that the correct plug-in module is installed in the correct slot or whether the correct plug-in module is installed in the correct slot. This advantageously prevents tilting.

[0045] If the alignment assembly has a lower height, it is advantageously possible to quickly detect during assembly whether the plug-in module is installed at or in the correct slot and then set the exact orientation (in the xy plane). Insertion errors can then be detected quickly. This allows the alignment assembly to be implemented particularly elegantly.

[0046] In both cases, it can be provided, for example, that only at least one first alignment element has a different height than at least one first coding element (for example, due to ribs of different lengths at the slot, etc., the corresponding cutouts at the plug-in module as second alignment elements or second coding elements can each have the same height, for example). Or it can be provided that, for example, only at least one second alignment element has a different height than at least one second coding element.

[0047] Alternatively or additionally, it can be provided that the alignment component is arranged at a lower or higher height (in particular viewed parallel to the plug-in direction) than the encoding device (for example at least 10% higher or lower or for example at least 1 mm higher or lower).

[0048] If the alignment component is arranged at a higher height than the encoding device (over the bottom), then advantageously during the assembly of the plug-in module, its orientation (especially in the xy plane) can first be set correctly and then the encoding device can be used to detect whether the correct plug-in module is installed in the correct slot. This advantageously prevents tilting.

[0049] If it is arranged at a lower height, it is advantageously possible to quickly detect during assembly whether the plug-in module is installed at or in the correct slot and then set the exact orientation (in the xy plane). Insertion errors can then be detected quickly. This allows the alignment assembly to be implemented particularly delicately.

[0050] In both cases, it can be provided, for example, that only at least one first alignment element is arranged at a different height than at least one first coding element (for example, due to ribs at the slot that are at different distances from the bottom, etc., corresponding cutouts as second alignment elements or second coding elements at the plug-in module can each start and / or end at the same height). Or it can be provided that, for example, only at least one second alignment element has a different height than at least one second coding element.

[0051] It goes without saying that it is also possible in principle for the alignment device and the encoding device to have the same height or to be mounted or arranged at the same height, thereby performing both functions simultaneously during the plug-in process.

[0052] Particularly preferably, the first alignment element (or at least the first alignment element) of each cup-shaped recess is arranged at the same position (or at a plurality of the same positions) on each recess.

[0053] Advantageously, the housing of the plug-in module and the plug-in connector can thereby be manufactured particularly easily. Furthermore, advantageously, a quality control can thereby be carried out particularly easily after the processing of the housing and the plug-in module. Furthermore, advantageously, the at least one first alignment element can thereby be designed particularly well with a high degree of positioning reliability. In the case of a plurality of first alignment elements, these can, for example, have a particularly large spacing relative to one another.

[0054] As an alternative or additional solution, it is provided that the first alignment element (or first alignment element) of each cup-shaped slot is designed to be identical in geometry. This can advantageously make the housing and the plug-in module particularly easy to manufacture. In addition, quality control can be particularly easily achieved after manufacturing.

[0055] Preferably, the first alignment element and the second alignment element are designed to complement each other.

[0056] As a result, a particularly easy mechanical coupling can be achieved if a correct positioning is achieved between the plug-in module and the slot.

[0057] As an alternative or in addition, it is provided that the first alignment element is arranged only at or in the base area of ​​the cup-shaped socket pointing toward the mating plug-in connector, so that each wall adjacent to the base area of ​​the socket is formed as a first alignment element, or each wall is formed at the remaining wall area or at a wall area outside the base area that is free of first alignment elements. The remaining wall areas of the socket, in particular the wall areas above the base area, are therefore preferably substantially free of alignment elements and coding elements. Furthermore, this advantageously simplifies the production of the plug-in connector or the wall assembly of the socket.

[0058] Therefore, except the bottom area, the smooth wall of the slot can be realized, which especially significantly simplifies the introduction process of the plug-in module into the cup-shaped slot. In addition, advantageously, the manufacture of the wall assembly of the plug connector or the slot is simplified thereby.

[0059] Furthermore, in this way, further functional elements (e.g. displaceable (secondary) locking elements) can also be advantageously arranged on the plug-in module without these further functional elements being impaired in their functionality or having to be geometrically complex in design, for example due to alignment elements running completely along the wall.

[0060] The base region can extend, for example, along a height of at most 25%, preferably at most 15% and particularly preferably at most 10% of the height of the respective wall. The height of the wall can be measured, for example, parallel to the plug-in direction of the plug-in module into the respective slot.

[0061] According to a further preferred embodiment of the invention, the plug-in module has at least one (secondary) locking device which, in the inserted state of the plug-in module, abuts against the slot and is designed to lock or hold at least one plug-in element arranged in the plug-in module in the plug-in module.

[0062] The secondary locking device can advantageously relieve the optionally present primary latching portion of the plug-in element in the plug-in module. In addition, the proposed secondary locking portion advantageously automatically ensures that the plug-in element is secondary locked in the slot in the inserted state of the plug-in module. The secondary locking device can be designed, for example, in such a way that the plug-in module can only be correctly inserted into the slot or assembled in the slot when the secondary locking device is correctly introduced or closed. This advantageously makes it possible to dispense with a secondary locking element (e.g. a slide) that has to be actuated separately on the overall plug-in part or the plug connector.

[0063] It goes without saying that in the absence of a primary latching portion or primary locking portion of a plug element in the corresponding plug-in module or its plug element chamber, the secondary locking device can simply be a locking device. Such a primary latching portion or primary locking portion is exemplarily configured as a locking gun at the plug element or at the plug module in a chamber corresponding to the plug element. The primary latching portion or primary locking portion, for example, engages behind a (chamber-) undercut in the chamber or at the plug element. The primary latching portion or primary locking portion is configured, for example, elastically and reversibly displaceable transversely to the insertion direction of the plug element into the chamber.

[0064] The (secondary) locking device can be designed, for example, to absorb greater tearing forces than conventional primary latching devices.

[0065] The secondary locking device preferably comprises or has a first tongue. The first tongue can be pivoted about an axis in order to carry out the locking process. As a result, at least one plug-in element or a plurality of plug-in elements can advantageously be locked directly in the plug-in module, in particular before the plug-in module is installed in the associated slot. As a result, it is advantageously possible to check whether the plug-in element is correctly installed in the plug-in module during or after the installation of the plug-in module (and therefore at a relatively low value creation level) and to correct the installation if necessary.

[0066] For example, it can be provided that the secondary locking device has a second tongue, which is arranged on the side of the plug-in module opposite the first tongue. The second tongue can be pivoted, for example, about a (further or second) axis (in particular parallel to the axis first tongue) in order to implement the locking process. In this way, the same advantages as those achieved by the first tongue can be achieved. In addition, it is advantageously possible to reliably lock the individual plug-in elements in the plug-in module or its chamber even in the case of a two-row design of the plug-in module (i.e. a plug-in module in which two rows of, in particular, parallel, plug-in elements can be placed in corresponding chambers) by easy means.

[0067] In other words: if one or both tongues are not successfully closed, this indicates that at least one plug-in element is not correctly arranged in the plug-in module. By providing two tongues, it is advantageously possible to cause, for example, two-row, locked assembly of the plug-in module with the plug-in element.

[0068] Alternatively, it can be provided that a single secondary locking device has a first tongue and a second tongue.

[0069] Preferably, no components separate from the plug-in module are required for the (secondary) locking of the plug-in element.

[0070] Particularly preferably, the locking element, here in the form of a first tongue or a second tongue, is designed to be inseparable from the plug-in module.

[0071] The first tongue and / or the second tongue can be formed, for example, in one piece with the plug-in module. The first tongue and / or the second tongue can be arranged on the plug-in module, for example, by means of a film hinge.

[0072] For example, it can be provided that the first tongue and / or the second tongue has a hook or a hook element or a hook-shaped element, for example, at its free end. Such a hook or such a hook element or such a hook-shaped element can, for example, engage behind an undercut of a plug-in module, and the first and / or second tongue is then locked or snapped onto the plug-in module in the closed state. For this purpose, the hook or the hook element can only have a protrusion or a curvature or the like by way of example. In other words: the corresponding tongue is then prevented from accidentally or elastically reversibly opening in the closed state. The corresponding tongue can then be opened (that is to say: turned outwards), for example, by unlocking the hook element or the hook. It can also be provided, only by way of example, that the hook or the hook element engages behind an undercut of at least one plug-in element arranged in the plug-in module and locks it in this way.

[0073] It is further preferred that at least one first alignment element and at least one first coding element are arranged next to each other in a line in the cup-shaped slot. The line can extend, for example, parallel to the wall of the wall assembly. Thus, the alignment elements and the coding elements are all arranged on a common side at the wall of the slot. This advantageously allows a particularly space-saving arrangement of the mechanical elements for correctly associating the plug-in module and correctly placing the plug-in module in the slot.

[0074] If a plurality of first alignment elements and a plurality of first coding elements are provided and are arranged or disposed on or at a plurality of walls of the wall assembly, for example on or at opposite walls of the wall assembly, all first alignment elements and first coding elements disposed on or at the walls are preferably arranged side by side in a line.

[0075] In a further development, it is provided that at least one plug-in module is latched in the slot, thereby advantageously making it particularly easy to mount the plug-in module in the slot.

[0076] Preferably, the plug-in module is coupled or latched to the slot in a state of being mounted in the slot in a separation-proof manner.

[0077] For the locking portion, for example, a locking structure at the slot and a matching locking structure at the plug-in module can be provided. For example, it can be provided that a single locking structure and / or a single matching locking structure are provided. However, multiple locking structures (for example, two, three, four, five, six, or more) and / or multiple matching locking structures (for example, two, three, four, five, six, or more) can also be provided.

[0078] For example, it can be provided that all latching structures of the slot are constructed on the side of the wall component of the relevant slot or the only wall of the wall component. This makes it advantageously possible to manufacture the slot particularly easily. In addition, this advantageously requires particularly little space in the slot.

[0079] It can be provided that one or more matching latch structures are respectively provided at the plug-in module at the mutually opposite walls of the plug-in module. In this way, the plug-in module can be advantageously and reliably assembled in the slot independently of which side of the slot wall the one or more latch structures are arranged.

[0080] The latching portion can be designed to be releasable, for example, by means of an elastically reversible latching structure. In this way, after assembly, if there is a defect in the plug-in element or the plug-in module, the plug-in module can be removed from the socket without damage, for example using a suitable tool. This makes it possible to repair the plug connector in an advantageously easy manner.

[0081] Preferably, at least one latching structure and at least one mating latching structure are arranged or constructed (in particular laterally) outside a first or second coding element or a plurality of first or second coding elements. In other words: the first or second coding element is not arranged between the latching structure or the mating latching structure and the adjacent wall of the slot or the plug-in module closest thereto. This advantageously results in a functional separation between the latching part and the coding part, in particular in the transverse direction. For example, it can also be provided that at least one latching structure and at least one mating latching structure are arranged or constructed (in particular laterally) outside a first or second alignment element or a plurality of first or second alignment elements.

[0082] If, for example, two latching structures are provided on the wall of the slot, it can be provided, for example, that all first coding elements and / or first alignment elements are arranged between the two latching structures. This can be provided, for example, for each slot of the plug connector.

[0083] In one development, it is provided that the wall arrangement has a wall latching element in the base region, which can latch with a plug-in module undercut of the plug-in module.

[0084] This advantageously results in the wall latching element and the plug-in module undercut not having any influence on functional elements arranged further above, such as, for example, a (secondary) locking device. A spatial separation of functions is thus achieved.

[0085] Wall latching elements (designed, for example, elastically reversibly, for example in the form of latching hooks or locking lances) can serve as latching structures. Plug-in module undercuts can serve as counter-latching structures.

[0086] It goes without saying that exactly one wall latching element may be provided, but also a plurality of wall latching elements may be provided.

[0087] In a preferred embodiment, all wall latching elements are arranged on the same side wall of the wall component of the corresponding insertion slot.

[0088] It goes without saying that exactly one plug-in module undercut can be provided, but also a plurality of plug-in module undercuts can be provided.

[0089] In a preferred embodiment, plug-in module undercuts are respectively provided on mutually opposite plug-in module walls, in particular the same number of plug-in module undercuts are respectively provided (e.g. a single plug-in module undercut or a plurality of plug-in module undercuts are respectively provided). Particularly preferably, the plug-in module undercuts are arranged on mutually opposite plug-in module walls in a mirror-symmetrical manner to a center plane of the plug-in module.

[0090] As an alternative or in addition, it is provided that the wall arrangement has a wall undercut in the bottom region which can be latched with a plug-in module latching element (exemplarily elastically reversibly, for example in the form of a latching hook or locking lance) of the plug-in module.

[0091] This advantageously results in the wall undercut and the plug-in module latching element not having any influence on functional elements arranged further above, such as, for example, a (secondary) locking device. A spatial separation of functions is thus achieved.

[0092] The wall undercut can serve as a latching structure. The plug-in module latching element can serve as a counter-latching structure.

[0093] It goes without saying that exactly one wall undercut can be provided, but also a plurality of wall undercuts can be provided.

[0094] In a preferred embodiment, all wall undercuts are arranged on the same side of the wall of the wall component of the corresponding insertion slot.

[0095] It goes without saying that exactly one plug-in module latching element may be provided, but also a plurality of plug-in module latching elements may be provided.

[0096] In a preferred embodiment, plug-in module latching elements are respectively provided on mutually opposite plug-in module walls, in particular respectively the same number of plug-in module latching elements (for example respectively a single plug-in module latching element or a plurality of plug-in module latching elements are provided). Particularly preferably, the plug-in module latching elements are arranged on mutually opposite plug-in module walls in a mirror-symmetrical manner to the middle plane of the plug-in module.

[0097] The invention further relates to a plug connector assembly comprising a plug connector according to the invention and a mating plug connector having at least one mating plug element which is designed to couple to at least one plug element of a plug module arranged in the plug connector.

[0098] The plug connector assembly can be designed, for example, for an electrical and / or optical plug-in process or connection or for introducing a sensor element.

[0099] The (secondary-) locking device is preferably set up for permanently fixing the corresponding, in particular primary latching, plug-in element arranged in the plug-in module. Here, the hook element of the (secondary-) locking device preferably engages the undercut at the plug-in element behind.

[0100] For example, it can be provided that before the plug-in module is inserted into the slot in the housing, at least one tongue is closed, for example, in particular manually or mechanically. The at least one tongue is tilted or pivoted, for example, inwardly toward the main area of ​​the plug-in module. This makes it possible, for example, to automatically secondary lock a plurality of or even all inserted plug-in elements.

[0101] For example, the corresponding plug-in module can only be installed in the associated slot if the (secondary) locking device is correctly installed or correctly closed.

[0102] Preferably, the (secondary) locking device is arranged outside the base region (for example in the middle region and / or in the head region of the plug-in module).

[0103] The plug-in module can be pushed or installed into the slot without difficulty, since the coding element and the alignment element are preferably arranged close to the bottom area of ​​the slot, facing the mating plug-in connector. As a result, no structural design of the (secondary) locking device (e.g., a recess for passing the coding rib) is required. When the plug-in module is removed from the slot, the secondary locking can then be released in a simple manner and for both contact elements at the same time by folding back at least one tongue.

[0104] Further preferably, the second coding unit or second coding element and / or the second alignment unit or second alignment element on the plug-in module is arranged only in the region of the plug-in module pointing toward the bottom region of the slot (e.g. at most in the lower 35% or at most in the lower 25%, preferably at most in the lower 15% and particularly preferably at most in the lower 10% of the height of the plug-in module). This does not impair the function of the at least one tongue of the plug-in module. This also allows other functionalities to be arranged on the plug-in module, for example outside the bottom region, without being disrupted or hindered or influenced by the second coding element and / or the second alignment element. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] Embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the accompanying drawings:

[0106] Figure 1 shows a schematic perspective exploded view of a plug connector assembly according to a preferred embodiment of the present invention together with a modularly constructed plug connector,

[0107] Figure 2 Shows Figure 1 A schematic perspective view of a plug-in connector with an inserted plug-in module and a free slot,

[0108] Figures 3 to 5 Differently designed plug-in modules are shown, which are designed to be plugged into Figure 1 In the housing of the plug connector,

[0109] Figure 6 Shows Figure 1 A schematic top view of the housing of the plug connector,

[0110] Figure 7 shows a cross section through a plug-in module with inserted plug-in elements,

[0111] Figure 8 A schematic view of the housing of the plug connector is shown from below.

[0112] Fig. 9 Shows Figure 1 Schematic cross section of a plug connector. DETAILED DESCRIPTION

[0113] Reference below Figures 1 to 9 The plug-in connector arrangement 1 is described in detail with a modularly constructed plug-in connector 2 and a mating plug-in connector 3 .

[0114] Figure 1 The basic structure of the plug connector assembly 1 is shown in an exploded view. The plug connector assembly 1 comprises two main components, namely a plug connector 2 and a mating plug connector 3.

[0115] The mating plug-in connector 3 has, here by way of example, a mating plug-in connector housing 31 , in which, here by way of example, a plurality of mating plug-in elements 30 are arranged.

[0116] The plug connector 2 can be plugged together with a mating plug connector 3 .

[0117] Furthermore, the plug connector assembly 1 optionally also includes a cover 10 (for the cable outlet) of the plug connector 2 and optionally includes a lever 11 or generally an actuating element (which can also be a slide, for example), which here, by way of example, performs the actual plugging process between the plug connector 2 and the mating plug connector 3 during actuation, or by means of which the plug connection can be released again. The lever 11 or the actuating element can be provided, for example, to reduce the operating force during the plugging process or when plugging into each other. The joint plugging takes place along a plugging direction, which here extends parallel to the z-axis.

[0118] The optional cover 10 of the plug connector 2 can also be arranged or mounted or plugged into the housing 20 of the plug connector 2 described below in a 180° manner, depending on the desired cable outlet. Figure 1 So point to the right.

[0119] The optional rod 11 can also be arranged on the plug connector 2 or on the housing 20 of the plug connector 2 or on the cover 10 described in more detail below, rotated or twisted 180° depending on the construction space conditions and / or on the orientation of the optionally present cover 10 (about a vertical axis).

[0120] The plug connector 2 comprises a (plug connector) housing 20, the details of which are shown in FIG. Figure 2 , Figure 6 , Figure 8 and Fig. 9 As can be seen. The housing 20 is exemplarily configured topographically here. Its edges extend exemplarily parallel to the x-axis (longer side) and y-axis (shorter side) of the Cartesian coordinate system, and its third axis is shown as the z-axis. The housing has a plurality of slots 21, exemplarily nine slots 21 here. The slots 21 are exemplarily arranged in three rows of three. Therefore, a 3×3 matrix array is shown here, wherein it goes without saying that other arrangements (such as a 2×3 matrix array or other matrix arrays) can also be conceived. The slots 21 are respectively defined by a wall portion or a wall component 22 surrounding the slot, or the slot is defined by the wall component 22, or the wall component 22 surrounds the corresponding slot 21.

[0121] Each slot 21 is designed to receive a plug-in module 7. However, it can be provided that not all slots 21 are equipped with a plug-in module 7. Figure 2 In the example, the plug-in module 7 is inserted into the slot 21. Figures 3 to 5. The plug-in module 7 can have, for example, a plug-in module housing 9. For example, at least one chamber 70 can be provided in the plug-in module 7 for receiving the plug-in element 12, or the plug-in module housing 9 can have at least one such chamber 70. In the present embodiment, each plug-in module 7 has a plurality of chambers 70.

[0122] In the present embodiment, all slots 21 are particularly advantageously designed identically in terms of cross section or external dimensions or external specifications. All plug-in modules 7 have, by way of example, the same cross section or the same external dimensions or the same external specifications. This facilitates planning when arranging the individual plug-in modules and also facilitates assembly and can in particular be automated.

[0123] A particularly simple and cost-effective modular plug-in connector solution can be obtained. If the user does not want or cannot use the entire surface of the plug-in module 7, the individual chambers 70 of the plug-in module 7 can remain empty, or a plug-in module 7 with fewer chambers 70 can be provided. The internal occupation of the plug-in module 7 can therefore be variably specified by the user. However, the external shape of the corresponding plug-in module 7 ensures that the plug-in module 7 can only be correctly assembled at a single slot 21. This makes it possible to simply and easily automate the assembly of the plug-in module 7 into the slot 21, wherein at the same time the user has a high degree of flexibility for the occupation of the plug-in surface. Complex plug-in connector occupation solutions can thus be realized and assembled in an easy and cost-effective manner.

[0124] It can be advantageously provided that the plug-in module 7 has different color designs or different colors (in the example of FIG. 1 ) depending on the slot 21 to which the plug-in module is assigned or on the type of the coding device 4 or on the type of the second coding element 42. Figure 3 , Figure 4 , Figure 5 and Fig. 9). This makes it easier to assemble the slot 21 with the associated plug-in module 7. It is particularly advantageous to set different colors of the corresponding plug-in module 7 for each slot 21. This type of color design can realize the automated assembly of the housing 20 and the plug-in module 7 particularly easily and reliably. Color recognition during automated assembly can be realized, for example, by a camera and evaluation electronics. It can also be provided, for example, that the plug-in module 7 is illuminated at a specified wavelength, and for example the infrared spectrum (or other spectrum) of the illuminated plug-in module 7 is recorded and evaluated, and the allocation to the corresponding slot 21 is performed according to the evaluation situation. This is then verified by a mechanical encoding device 4. For example, the color design of the plug-in module 7 can be caused by the different colors of the materials used, such as plastics, when manufacturing by injection molding technology. This makes it possible to easily and cost-effectively manufacture the plug-in module 7. In addition, the color design of the plug-in module 7 and thus its type or variety of the plug-in module 7 can thus also be easily recognized from all directions, so that automated assembly of the housing and the plug-in module 7 can be achieved particularly easily and reliably.

[0125] Figure 3 By way of example, a plug-in module 7 is shown in which two rows of chambers 70 are arranged parallel to one another and are rectangular in cross section, by way of example almost square.

[0126] Figure 4 An alternative plug-in module 7 is shown by way of example, in which three larger chambers 70 with rounded corner regions are arranged in series.

[0127] Figure 5 By way of example, two rows of five smaller chambers 70 are shown, each having an approximately square cross section with rounded corners.

[0128] Therefore, the plug-in module 7 is configured to receive at least one plug-in element 12, preferably a plurality of plug-in elements 12, in a separation-proof manner. Here, preferably, each chamber 70 is provided with a plug-in element 12, respectively. (For example, in Figure 7The plug-in element 12 shown in the figure can be, for example, an electrical contact element or an optical plug-in element (such as an optical conductor, a diode, etc.) or a sensor element. At least one plug-in element 12 can have, for example, a locking gun 13 or a primary locking element for primary locking or primary locking. The locking gun 13 can be configured to be elastically reversibly displaceable transversely to the plug-in direction. When the plug-in element 12 has been inserted into the plug-in module 7, the locking gun can, for example, be locked at the (primary locking) undercut 86 of the plug-in module 7 or the plug-in module housing 9. This at least temporarily prevents the plug-in element 12 from being pulled out of the plug-in module 12 or falling off. The plug-in element 12 can, for example, be connected to a cable 14. For example, the line of the cable 14 can be crimped to the plug-in element 12 (see Figure 7 ).

[0129] If further Figures 3 to 5 As can be seen, the plug-in module 7 has essentially a square shape with two longer sides (here exemplarily parallel to the x-axis) and two shorter sides (here exemplarily parallel to the y-axis), wherein (secondary) locking devices 8 are arranged here exemplarily at the longer sides. The (secondary) locking device 8 here exemplarily comprises a first tongue 81 at the first longer side and a second tongue 82 at the opposite second longer side. The two tongues 81, 82 can be pivoted about an axis here parallel to the x-axis or parallel to the longer sides. These tongues are only exemplarily connected by means of a film hinge 85 (see Figure 7 ) are arranged on the plug-in module 7 or on the plug-in module housing 9. These tongues have a hook region or hook element 83 at the free end. The hook or hook element 83 is pointed inwardly, i.e., toward the plug-in module housing 9 at the free end, wherein the chamber 70 is formed in the plug-in module housing 9. The hook region or hook element 83 is designed to be arranged in the chamber 70 of the plug-in module 7 and can be preliminarily locked (see Figure 7 ) of the plug element 12 ((secondary) locking). In addition, the hook element 83 has a protrusion 84 or a thickening (see also Figure 7 : there: pointing upwards). The projection 84 can be used to latch the corresponding tongues 81, 82 onto the (locking) undercut 87 of the plug-in module housing 9, in particular in a non-destructively releasable manner, so that when the tongues 81, 82 are moved into the closed (locked) position (see Figure 7 ), these tabs cannot be accidentally released.

[0130] Before the housing 20 or the corresponding slot 21 is assembled, it is necessary to close or lock the (secondary) locking device 8. For this purpose, the first and second tongues 81, 82 are pressed here, for example, toward the plug-in module housing 9 of the plug-in module 7. The locking is carried out with the help of the hook area or the hook element 83. The hook element 83 engages the plug-in element undercut 15 from behind. The plug-in element 12 or the plug-in element 12 is thus protected or blocked from being pulled out of the plug-in module 7. Optionally, the existing primary locking gun or locking gun 13 or the primary latching element is relieved (see Figure 7 ).

[0131] It goes without saying that the plug-in module 7 can also be designed without a secondary locking device 8 in other embodiments.

[0132] It goes without saying that embodiments are possible in which the plug-in element 12 is arranged in the plug-in module 7 without primary latching or primary locking. In this case, the secondary locking device 8 can be, for example, a single locking part or a single element that protects or blocks the plug-in element 12 from being pulled out at least along the insertion direction into the corresponding chamber 70 (here, parallel to the z-axis). Nevertheless, for reasons of better readability, the term secondary locking device 8 is still used for such a case, although in such a case it is generally referred to as a locking device.

[0133] In order to enable or facilitate automation when plugging the plug-in modules 7 into the housing 20, the plug connector 2 has a mechanical coding device 4, which is formed between each slot 21 and each inserted plug-in module 7. The mechanical coding device 4 therefore has coding elements both at the slot 21 and at the plug-in module 7. This results in a defined association between the plug-in module 7 and the slot 21. A single plug-in module 7 can therefore only be correctly mounted in exactly one slot 21. Therefore, only a single plug-in module type or a single plug-in module variety should be placed in each slot 21 (not shown here is an "adapter solution" for the plug-in module 7, which is adapted to a plurality of slots 21 by means of a clever coding arrangement, such as a recess at all locations of the plug-in module 7, at which, in principle, a projection-like or rib-like first coding element 41 can be formed, for example, or a variant opposite thereto).

[0134] More precisely, the mechanical encoding device 4 comprises a first encoding element 41 (see Figure 6 ) and a second coding element 42 complementary to the first coding element 41 (see Figures 3 to 5). The first coding element 41 is arranged at the (cup-shaped) slot 21, and the second coding element 42 complementary thereto is arranged at the plug-in module 7. For example, it can be provided that the first coding element 41 of the slot 21 is constructed or injection-molded in or at the corresponding wall. In particular, they can be constructed integrally with the corresponding wall. Figure 3 , Figure 4 and Figure 5 It can be seen that the second coding element 42 is configured as a slot-shaped recess at the longitudinal side of the plug-in module 7. The second coding element extends only in the lower region (approximately the lowermost 10%-20%) of the plug-in module housing 9, which can also be referred to as the bottom region 23. The first coding element 41 is configured as a protruding region formed complementary to the recess at the slot 21 in the housing 20. In principle, other configurations are also conceivable, for example, a pin or projection that protrudes downward or laterally can be configured on the plug-in module 7, which is embedded in a corresponding recess of the slot 21.

[0135] A single element (eg a journal, a protruding or convex region, a projection, a cutout, a hole, etc.) or a plurality of elements (eg a journal or a protruding region or a projection, a cutout, a hole, etc.) can be provided as the first coding element 41 .

[0136] In the same way, a single element or a plurality of elements can be provided as the second coding element 42 , wherein the element or elements are mechanically adapted to the respective first coding element 41 (key-lock principle). These can therefore be elements that are complementary to one another.

[0137] Here, each first and second coding element 41, 42 of each coding device 4 is constructed differently, and / or each first coding element 41 is arranged at a different position in or on the slot 21, and each corresponding second coding element 42 adapted thereto is correspondingly arranged at a different position in or on the plug-in module 7. In other words: only one type or one type of plug-in module 7 is adapted in each slot 21, or only one type or one type of plug-in module 7 can be correctly inserted or assembled.

[0138] As from Figure 6 As is evident, the first mechanical coding element 41 is arranged as a protruding area on the slot 21 only on the bottom area 23 of the slot 21 pointing toward the mating plug connector (the bottom area 23 here extends, for example, up to a maximum of 10% or up to a maximum of 15% or up to a maximum of 20% of the height of the wall of the slot 21 (parallel to the z-direction). This can also be clearly seen in Figures 3 to 5It can be seen in FIG. 1 that the second coding element 42 is formed only in the lowermost region of the plug-in module housing 9 (approximately the lowermost 10%-20% of the height of the plug-in module housing 9 facing the base region 23 ).

[0139] As from Figure 2 As is obvious, the wall or wall portion of the wall assembly 22 is constructed at the remaining wall area (upper area) extending from the bottom area 23 toward the insertion opening, which has no coding elements and no other elements. The wall is therefore constructed smoothly in this area, in particular without protrusions. In the present embodiment, the wall also has no deepening or the like in the upper area of ​​the bottom area 23. This makes it particularly easy, non-skewing, and low-friction to insert the plug-in module 7 into the slot 21. In addition, in this way, additional functional solutions can be installed on the outside of the plug-in module 7, such as the tongues 81, 82 of the (secondary-) locking device 8, without, for example, adversely affecting these additional functional solutions due to the coding ribs along the (almost the entire or entire) wall height or in the upper area of ​​the corresponding wall. In other words: the functional separation can be caused by dividing the functions (such as coding, orientation, locking, etc.) in different heights of the slot 21 or the plug-in module 7.

[0140] In each of the two (here by way of example) corners of the slot 21, ribs or torsion ribs 25 extending upward from the base region 23 are formed. The ribs or torsion ribs serve as anti-twist structures that prevent the plug-in module 7 from being inserted into the slot 21 in a manner twisted 180° about a vertical axis. Corresponding cutouts are also provided on the plug-in modules 7 (at the same location on all plug-in modules 7). However, the anti-twist elements do not interfere with the functional separation described above, since they are only arranged in the corners and the wall in the upper region is of uninterrupted smooth construction, in particular without protrusions.

[0141] like Figure 6 As shown in FIG. 2 , a circumferential edge 24 is formed at or in the bottom area 23, on which the first coding element 41 is placed or connected to the first coding element 41. The first coding element 41 is also connected to the wall of the wall component 22 by way of example. Therefore, the height of the first coding element 41 along the plug-in direction is very small, as shown by Figures 3 to 5 The second coding element 42 which is designed complementarily on the plug-in module 21 is clearly visible, so that the remaining wall area of ​​the insertion slot 21 is smooth.

[0142] Furthermore, the plug connector 2 comprises an alignment component 6 having a first alignment element 61 and a second alignment element 62. The alignment component 6 ensures the correct orientation (in the xy plane) of the inserted plug-in module 7 in the slot 21. Similar to the coding elements 41, 42 of the mechanical encoding device 4, the alignment elements 61, 62 of the alignment component 6 are designed here as complementary to each other by means of slots and protruding areas. Here, the second alignment element 62 is designed as a slot or a recess (at least one slot or a recess) and the first alignment element 61 is designed as a protruding area or a journal or a projection (at least one protruding area or a journal or a projection). It goes without saying that the opposite design or mixed design (at least one slot or a recess as a first alignment element; at least one protruding area or a journal or a projection as a second alignment element) is also conceivable.

[0143] As from Figure 6 As is evident, the first coding element 41 and the first alignment element 61 are each arranged at or on the edge 24 of the base region 23. The first coding element 41 and the first alignment element 61 are therefore located on a common line perpendicular to the plug-in direction (parallel to the z-axis) of the plug-in module 7. In the base region 23, a first coding element 41 and a first alignment element 61 are arranged at each longitudinal side of each slot.

[0144] For example, it can be provided that the first alignment element 61 of the alignment component 6 has a greater height or is arranged at a greater distance from the edge than the first encoding element 41 of the encoding device 4. For example, the first alignment component can be at least 10% higher than the encoding device. This advantageously results in that during the assembly process, the plug-in module 7 is first positioned correctly in the slot 21, and at the end of the plug-in process it is ensured or recognized that the correct plug-in module 7 has been plugged into the slot 21 or whether it has been plugged into the slot.

[0145] The plug connector assembly 1 further comprises an introduction aid 5, which facilitates the introduction of the plug connector 2 into the mating plug connector 3 and vice versa. The introduction aid 5 comprises a recess 52, which is designed to receive a sword 51 of the mating plug connector 3 (see also Figure 1 and Figure 8 ). Figure 6 As is obvious, the recess 52 is arranged between the slots 21. Complementarily to the recess 52, the sword 51 is correspondingly configured on the mating plug connector 3 (see Figure 1The insertion aid 5 facilitates the plugging of the plug connector 2 onto the mating plug connector 3 and guides the plug connector 2 in the recess 52 during the further plugging process. The recess 52 is closed here by way of example by a partition 53 (see Fig. 9 The recess has an end which is open downward (facing the mating plug connector 3 or the sword 51, see Figure 8 , Fig. 9 ). The recess is constructed in a bag-like manner. The upper end is also open and bag-like in this case. The partition 53 prevents fluids, media, dirt and stains from penetrating into the mating plug connector 3 through the recess 52. The partition can, for example, also improve the stability of the recess 52 and / or enable the wall defining the recess 52 to be designed to be thinner. The sword-shaped piece 51 can also simultaneously function as a touch protection at the mating plug connector 3 and / or as a damage protection for the mating plug element 30 of the mating plug connector 3.

[0146] The recess 52 has a smaller cross section than the cross section of the slot 21. By means of the arrangement between two rows of slots 21, a very compact plug connector assembly 1 can be provided.

[0147] An alignment component 6 is formed between each slot 21 and each plug-in module 7. The alignment component 6 ensures the final plug-in position (in the xy plane) of the plug-in module 7 in the (especially cup-shaped) slot 21. The alignment component 6 can have a tolerance between the first and second alignment elements 61, 62 that is smaller than the tolerance of the first and second encoding elements 41, 42 of the mechanical encoding device 4.

[0148] The first alignment element 61 and the first coding element 41 are designed here by way of example as journals or ribs or projections which protrude from the wall into the interior of the socket.

[0149] In the present exemplary embodiment, the alignment component 6 is higher than the encoding device 4. In the present case, viewed parallel to the plug-in direction z, for this example, a first alignment element 61 or a plurality of first alignment elements 61 are higher than a first encoding element 41 or a plurality of first encoding elements 41 (however, in Figure 6 In the example, the first alignment element 61 is closer to the observer than the first coding element 41). When the plug-in module 7 is inserted into the slot 21, firstly at least one first alignment element 61 is coupled to at least one second alignment element 62. The correct lateral orientation (xy plane) of the plug-in module 7 in the slot is achieved. In the further plug-in process, the coding device 4 plays a role. When the plug-in module 7 adapted to the slot 21 has been inserted, the first and second coding elements 41, 42 are adapted to each other or the first and second coding elements 41, 42 are adapted to each other. The plug-in module 7 can be completely introduced into the slot 21 along the plug-in direction z (see Fig. 9 It locks in place at the end of the plugging process). Figures 3 to 5 It can be seen in FIG. 1 that the second alignment element 61 and the second coding element 41 (embodied here by way of example as a cutout) have the same height, but this does not impede the functional sequence described above (first alignment in the lateral direction and then faulty plug-in testing).

[0150] As an alternative or in addition, it is also possible to arrange the encoding device at or in a different height than the alignment component 6 , in particular in the slot 21 .

[0151] Since the first and second alignment elements 61 , 62 and also the first and second mechanical coding elements 41 , 42 are arranged at the bottom region 23 of the slot 21 , they do not interfere during the insertion process, which can be performed over a large area of ​​the slot 21 at the smooth wall.

[0152] The alignment elements 61 , 62 and the coding elements 41 , 42 also do not interfere with the secondary locking device 8 , which is preferably activated by folding back the tongues 81 , 82 before the plug-in module 7 is inserted into the slot 21 .

[0153] Figure 7 A cross section of a plug-in module 7 is shown by way of example. Figure 7 Two plug-in elements 12 are shown, which are designed as electrical contact elements. These plug-in elements 12 can therefore be introduced into the chamber 70 in a simple manner and can be primarily locked, for example, by means of a primary locking device or a primary latching device. This ensures that the plug-in elements 12 are detachably secured in the chamber 70 of the plug-in module 7. Figure 7 At the lower end in the connector (facing the mating plug connector 3), an insertion opening 88 is provided in each case for the two sectioned chambers 70 in the plug-in module housing 9. Through the insertion opening 88, for example, a mating plug element 30 can be introduced into the chamber 70 and coupled to the plug element 12, for example, to produce an electrical and / or mechanical and / or optical connection.

[0154] This can be achieved, for example, by at least one locking lance 13 or primary locking lance or primary locking lance, which is particularly elastically reversibly displaceable, in or on the plug-in element 12 itself (it is also conceivable in principle that such a locking lance is arranged in or on the plug-in module housing 9 or in a chamber 70 which then latches in the undercut of the plug-in element 12). Figure 7 On the left side in FIG. , the first tongue 81 is shown in the open (first) position P1. The hook element 83 has not yet been displaced into the locking position. Figure 7On the right side of the connector 7, the second tongue 82 is pivoted about a pivot axis (here exemplarily configured in or near the film hinge 85) into a closed (second) position P2, in which the hook element 83 engages behind the plug element undercut 15 of the right plug element 12 and thus prevents the plug element 12 from being pulled out in the opposite direction of insertion (here upwards) into the plug-in module 7. When the plug-in module 7 is inserted into the slot 21, the two tongues 81, 82 are in the closed (second) position.

[0155] In the closed (second) position P2, the first or second tongue 81, 82 is coupled or, here by way of example, latched with its free end on the plug-in module housing 9 so that it cannot move by itself into the open (first) position P1. This is caused here by way of example by a projection 84 on the hook element 83, which projects upwards and latches behind the (locking) undercut 87. On the side opposite the projection (facing the mating plug connector 3), the hook element 83 is in engagement with the plug element undercut 15. The hook element 83 is therefore arranged in the closed (second) position relative to the plug element 12 between the plug element undercut 15 and the cable 14 or the crimping section 16 for the cable 14.

[0156] It can be provided that the plug-in module 21 with the (secondary) locking device 8 can only be installed or inserted or pushed into the slot 21 (e.g. without damage and / or with low power consumption) when the (secondary) locking device 8 is in the closed (second) position P2 or is closed. If, for example, the plug-in element 12 is not correctly installed in the plug-in module 7, the corresponding tongues 81, 82 cannot be moved into the closed (second) position P2, and the plug-in module 7 cannot then be installed in the slot 21. In this way, even in the case of automated processing of the housing 2 or assembly of the plug-in module 7 therewith, it is particularly easy to detect the presence of an error.

[0157] It should also be noted that further plug-in elements 12 can be arranged in each plug-in module 7, so that the plug-in module 7 can fulfill a variety of purposes. The plug-in elements 12 are selected, for example, from the group of electrical contact elements or optical elements (e.g. transmitting elements, receiving elements or optical coupling elements or sensor elements, etc.). Combinations of electrical and optical elements or sensor elements (e.g. magnetic sensors that couple to a magnetic field or magnet in the mating plug connector 3, or inductive sensors, etc.) are also conceivable in the plug-in module 7.

[0158] Furthermore, each plug-in module 7 can be configured to receive different plug-in elements 12 and / or a different number of plug-in elements 12, depending on the mating plug-in connector 3 or the intended use. Figure 2 As is obvious and has already been described above, one or more torsion ribs 25 can be arranged in the corners of the wall element 22 of the slot 21. The torsion ribs 25 prevent the plug-in module 7 from being twisted relative to the housing 20 of the plug connector 2 during the insertion process or the plug-in module 7 is inserted or inserted into the associated slot 21, for example, twisted by 180°.

[0159] The tolerance dimensions of the alignment component 6 can be, for example, at least 20% smaller than the tolerance dimensions of the encoding device 4. The tolerance dimensions here preferably relate to the position in the slot 21 and / or also to the dimensions of the width and / or length and / or height of the element.

[0160] In the present embodiment, the coding elements 41, 42, the alignment elements 61, 62 and the elements of the introduction aid 5 have been described essentially as protruding and recessed elements arranged at one component, respectively. However, it is self-evidently possible that the protruding and receiving elements can also be configured at another component, respectively. For example, in the case of a mechanical coding device 4, it is also conceivable that a plurality of first coding elements 41 are arranged at the housing 20, which are configured differently, for example as protruding areas and recesses. This is also possible for the alignment elements 61, 62.

[0161] The extension of the coding elements 41 , 42 and the alignment elements 61 , 62 along the plug-in direction (here: parallel to the z direction or z axis) is, for example, a maximum of 25%, preferably a maximum of 20%, particularly preferably a maximum of 10%, in particular a maximum of 5% of the total wall height (z direction) of the slot 21 .

[0162] Figure 8 A schematic illustration of the housing 20 of the plug connector 2 is shown, starting from the mating plug connector 3 (from below), along the viewing direction.

[0163] Here, two latching structures 92 can be seen by way of example for each slot 21, which are designed to engage with mating latching structures 93 on the plug-in module 7 (see Fig. 9 ) coupling. The plug-in module 7 is thus fixed or secured in the slot 21 (see also Fig. 9 ). In particular, it can be a releasable latching portion, so that individual plug-in modules 7 can be easily and quickly replaced. The two latching structures 92 are arranged here by way of example at the outer end of one of the two longitudinal sides or longitudinal walls. The alignment component 6 with its at least one first alignment element 61 and the encoding device 4 with its at least one encoding element 41 can be arranged between them (or at least parts of these elements can be arranged between these latching structures).

[0164] As the latching structures 92, two wall latching elements 90 are configured here by way of example, which are configured in the bottom region 23 of the wall component 22. The two wall latching elements 90 of the corresponding slot 21 can be latched with two corresponding plug-in module undercuts 91 of the plug-in module 7, which are represented as mating latching structures 93 (see Fig. 9 ).

[0165] As an alternative or in addition, the wall component 22 can have at least one wall undercut in the base region 23 , which can be latched with at least one plug-in module latching element of the plug-in module 7 .

[0166] Fig. 9 Shows Figure 1 Schematic cross section of a plug connector 2. Three slots 21 are shown in the cross section, wherein the plug-in modules 7 are respectively inserted into the two outer slots 21. It can be seen clearly (also with Figures 3 to 5 ), the mating latching structures 93, in this case the plug-in module undercut 91, are arranged on the two longitudinal sides of the plug-in module 12, even if the latching structures 92, in this case the wall latching elements 90, are arranged only on a single side of the slot 21. Despite the reliable retention of the plug-in module 7, the slot 21 (particularly narrow) can be designed with a particularly low space requirement in this way. At the same time, by providing the mating latching structures 93 on the opposite sides (walls) of the plug-in module 7, a high flexibility can be provided for arranging the latching structures 93 in the slot 21. Because, for example, for other housing shapes (for example with other matrix arrays), the latching structures 92 can be arranged (only) on the opposite sides without having to change the plug-in module 7 for this purpose. In principle, of course, it is also possible to arrange the latching structures 92 on two (opposite) walls or sides.

[0167] Preferably, the counter-locking structure 93 is arranged on the plug-in module 7 in a mirror-symmetrical manner with respect to a longitudinal plane (or transverse plane) of the plug-in module 7 .

[0168] It goes without saying that in other embodiments, the latching structure 92 or the matching latching structure 93 can also be arranged at one of the two shorter sides or at the two shorter sides. In addition, it is feasible to only set a single latching structure 92 or matching latching structure 93 or more than two latching structures 92 or matching latching structures 93.

[0169] By means of the invention described, plug connectors 2 can therefore be provided with different configurations, which can be provided as a modular system according to the module. In particular, by providing other housings 20 in an easy manner, the number of slots 21 can be easily increased or reduced (generally: adapted to user needs). The plug module 7 can be used here independently of the housing size. These modular systems can be implemented, and the expensive development of user-specific plug connectors or plug connector assemblies can be omitted, and only the housing 20 needs to be adapted to the corresponding mechanical coding part in order to prevent the wrong insertion of the module. If, for example, the number of slots 21 is increased from nine to 12 (3×3 matrix increased to 4×3 matrix), then, for example, the first nine coding parts can remain the same and only three new coding parts are added. Therefore, in this modular system, the first nine plug module types can be used for two plug connectors 1, and only three additional plug module categories need to be added for the new plug connector.

[0170] The geometry of the mechanical encoding device can be selected arbitrarily, preferably as small pillars or small ribs and complementary recesses. By the arrangement at the bottom area 23 of the slot 21 pointing toward the mating connector 3, an easy plug-in process can also be achieved at other smooth walls.

Claims

1. A modularly constructed plug connector for connecting to a mating plug connector, the plug connector comprising: a housing (20) having a plurality of cup-shaped receptacles (21), wherein the receptacles (21) are each defined by a surrounding wall component (22), at least one plug-in module (7) which is arranged in the slot (21) and is designed to receive at least one plug-in element (12), preferably a plurality of plug-in elements (12), in a manner which is particularly detachably secured, and a mechanical encoding device (4) which is arranged between each slot (21) and each inserted plug-in module (7) in order to provide a defined association between the plug-in module (7) and the slot (21), wherein the mechanical encoding device (4) has a first encoding element (41) and a second encoding element (42) complementary to the first encoding element (41), wherein the first coding element (41) is arranged at the cup-shaped slot (21) and the second coding element (42) is arranged at the plug-in module (7), and wherein each first coding element and the second coding element (41, 42) complementary thereto are designed differently and / or are arranged at different positions on the slot (21).

2. The plug connector according to claim 1, in, The cup-shaped slots (21) all have the same cross-section.

3. The plug connector according to claim 2, in, The cup-shaped receptacles (21) are substantially designed as cuboids and in particular all have a cross section of the same size.

4. The plug connector according to any one of the preceding claims, in, The first coding element (41) is arranged at the slot (21) only at the bottom area (23) of the cup-shaped slot (21) pointing toward the mating plug connector, so that each wall of the wall component (22) of the cup-shaped slot (21) is constructed at the remaining wall area without a coding element.

5. The plug connector according to claim 4, in, The base region (23) has an opening at the slot (21) and a substantially circumferential edge (24), on which the first coding element (41) is arranged.

6. Plug connector according to any one of the preceding claims, in, An insertion aid (5) is arranged between adjacent cup-shaped slots (21) and is designed to guide a plug-in process between the plug connector (2) and the mating plug connector (3).

7. The plug connector according to claim 6, in, The introduction aid (5) comprises at least one recess (52) which is designed to receive a sword (51) of the mating plug connector (3). The at least one recess (52) has a cross section that is smaller than a cross section of the slot (21).

8. The plug connector according to claim 1 , further comprising at least one alignment component (6) between each slot (21) and each inserted plug-in module (7), which is designed to ensure the final insertion position of the plug-in module (7) in the cup-shaped slot (21), in, The alignment component (6) has a first alignment element (61) at the cup-shaped slot (21) and a second alignment element (62) at the plug-in module (7). wherein the tolerance of the alignment component (6) is smaller than the tolerance of the encoding device (4) of the machine, and / or wherein the alignment component (6) has a height that is smaller or greater than that of the encoding device (4), and / or The alignment component (6) is arranged at a lower or higher height than the encoding device (4).

9. The plug connector according to claim 8, in, The first alignment element (61) of each cup-shaped receptacle (21) is arranged at the same position in each receptacle (21) and / or is designed to be geometrically identical.

10. The plug connector according to claim 8 or 9, in, The first alignment element (61) and the second alignment element (62) are constructed to be complementary to each other, and / or the first alignment element (61) is arranged only in the bottom area (23) of the cup-shaped socket (21) pointing toward the mating plug connector, so that each wall of the wall component (22) of the cup-shaped socket (21) is constructed in the remaining wall area without the first alignment element (61).

11. Plug connector according to any one of the preceding claims, in, The plug-in module (7) has at least one secondary locking device (8), which, in the inserted state of the plug-in module (7), abuts against the cup-shaped slot (21) and is designed to lock at least one plug-in element arranged in the plug-in module (7) in the plug-in module (7).

12. The plug connector according to claim 11, in, The secondary locking device (8) has a first tongue (81), wherein the first tongue is pivotable about an axis in order to implement a locking process, In particular, the secondary locking device (8) has a second tongue (82) which is arranged on a side of the plug-in module (7) opposite the first tongue (81), The second tongue (82) is pivotable about an axis in order to implement a locking process.

13. The plug connector according to any one of claims 9 to 12, in, The at least one first alignment element (61) and the first coding element (41) are arranged in the cup-shaped receptacle (21) next to one another on a line which is in particular parallel to a wall of the wall assembly.

14. Plug connector according to any one of the preceding claims, in, The at least one plug-in module (7) is in particular releasably latched in the slot (21).

15. Plug connector according to the preceding claim, in, The wall component (22) has a wall latching element (90) in the base region (23), which can latch with a plug-in module undercut (91) of the plug-in module (7). and / or The wall component (22) has a wall undercut in the bottom region (23), which can be latched with a plug-in module latching element of the plug-in module (7).

16. A plug-in connector assembly (1), comprising a plug-in connector (2) according to any of the preceding claims and a mating plug-in connector (3) having at least one mating plug-in element (30), which is configured to couple with at least one plug-in element of a plug-in module (7) arranged in the plug-in connector (2).

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