Flat plug connector system, flat plug connector with securing element, securing element and method for securing

Abstract

The present invention relates to a flat connector system (1), a flat connector (10) with a locking element (5), a locking element (5), and a method for securing a coupling between a flat connector (10) and a complementary flat connector (50), wherein the flat connector system (1) comprises: a flat connector (10) with a coupling section (14), a complementary flat connector (50) with a coupling section (54) complementary to the coupling section (14) of the flat connector (10), and a locking element (5), wherein one of the coupling section (14) and the complementary coupling section (54) has a receptacle (12) on which the locking element (5) is arranged at least partially, wherein the coupling section (14) and the complementary coupling section (54) are positively coupled.wherein the locking element (5) in a locked state of the flat connector system (1) prevents the positive locking coupling between coupling section (14) and complementary coupling section (54) from being released, wherein the locking element (5) in an unlocked state of the flat connector system (1) allows the positive locking coupling between coupling section (14) and complementary coupling section (54) to be released, wherein the locking element (5) has a locking position in the locked state of the flat connector system (1) and a non-locking position in the unlocked state, and wherein the coupling section (14), the complementary coupling section (54) and the locking element (5) are designed to be complementary to each other such that in a decoupled state in which the coupling section (14) and the complementary coupling section (54) are not coupled to each other,the locking element (5) is fixed in the non-locking position.

Description

[0001] The present invention relates to a flat connector system, a flat connector with a locking element, a locking element and a method for securing a coupling between a flat connector and a complementary flat connector.

[0002] In electrical and electronic devices, flat ribbon cables are used, particularly for bus lines. In such a cable, numerous conductors are embedded in an insulating film, each sheathed in insulation or applied to an insulating film. The individual conductors have a small cross-section and are closely spaced. To connect such a cable to a circuit board or other electrical or electronic device, a plug is typically connected to a corresponding socket. Under tensile stress, the cable can break at the plug, rendering it unusable. Alternatively, so-called "zero-insertion-force" (ZIF) connectors can be used. These allow the end of a cable to be inserted into the ZIF connector with minimal force, thus establishing an electrical connection.Since the connection between the cable and the "ZIF" connector is already established with very little force, the force required to break the connection is also low, so the electrical connection can be unintentionally interrupted.

[0003] At the same time, in certain technical fields, such as automotive engineering, electrical connections between electronic components are often exposed to high stresses that can impair the electrical connections.

[0004] It is therefore an object of the present invention to provide a flat connector system, a flat connector with a locking element, a locking element for a flat connector system, and a method to enable detachable electrical connections which offer improved assembly, particularly in comparatively small installation spaces, while simultaneously ensuring a predetermined connection security.

[0005] In other words, the particular object of the present invention is to provide a flat plug arrangement and a method which features improved assembly to ensure a predetermined connection security.

[0006] This problem is solved by the independent patent claims. Specific embodiments result from the dependent patent claims.

[0007] One aspect of the invention relates to a flat connector system comprising: a flat connector with a coupling section, a complementary flat connector with a coupling section complementary to the coupling section of the flat connector, and a locking element, -- wherein one of the coupling section and the complementary coupling section has a receptacle on which the locking element is arranged at least partially, -- wherein the coupling section and the complementary coupling section are positively coupled, -- wherein the locking element, in a locked state of the flat connector system, prevents the positive coupling between the coupling section and the complementary coupling section from being released, -- wherein the locking element, in an unlocked state of the flat connector system, allows the positive coupling between the coupling section and the complementary coupling section to be released, -- wherein the locking element has a locking position in the locked state of the flat connector system.and in the unsecured state has a non-secured position, and --- wherein the coupling section, the complementary coupling section and the locking element are designed to be complementary to each other such that in a decoupled state, in which the coupling section and the complementary coupling section are not coupled to each other, the locking element is fixed in the non-secured position. ,

[0008] By designing the coupling section, the complementary coupling section and the locking element in such a complementary manner that, in the decoupled state, the locking element is fixed in the non-locking position, an improved assembly for the flat connector and the complementary flat connector can advantageously be provided.

[0009] In particular, any obstruction or impairment of the coupling process or the coupling between the coupling section and the complementary coupling section by the locking element can be advantageously prevented, especially by fixing the locking element in the non-locking position, e.g. by holding it, clamping it, etc.

[0010] Furthermore, in particular, faulty or unsecured assembly of the flat connector system can be prevented if the locking element is in the locking position or comes into the locking position without or before the flat connector and the complementary flat connector are coupled together.

[0011] The assembly process can be improved, particularly by simplifying it, because fixing the locking element in the non-locking position advantageously prevents it from being moved into the locking position prematurely, before the flat connector is coupled to its complementary flat connector. This further simplifies assembly to such an extent that even if, for example, force is accidentally applied to the locking element, especially in the insertion direction of the flat connector system, the locking element remains in the non-locking position. This, in turn, ensures that the flat connector can be coupled to its complementary counterpart without the locking element interfering with the coupling process.Furthermore, the locking element can be pre-assembled, for example, on the flat connector or the complementary flat connector, which simplifies further assembly, particularly since the number of parts to be carried and / or operated during assembly is reduced. Advantageously, the locking element also does not need to be subsequently moved to the assembly point after coupling. This improves the repeatability and, consequently, the quality of the coupling of the flat connector system.

[0012] Furthermore, the assembly can be improved, in particular, by ensuring, for example, haptic and / or visual feedback after coupling. In other words, it can be ensured that, after coupling, an operator and / or a control unit receives, for example, haptic and / or visual feedback by making the locking element only move into the locking position after coupling.

[0013] The non-locking position can be a single geometrically defined position, but is not limited to this. Rather, the non-locking position can comprise multiple positions. In particular, the single non-locking position or the multiple non-locking positions can define a position in which the positive locking connection between the coupling section and the complementary coupling section is not secured and / or secureable by the locking element.

[0014] This can be achieved, for example, by ensuring that the locking element does not have a function that secures the positive locking connection in the non-locking position. A corresponding locking function provided by the locking element, particularly in the locking position, can be configured, for example, such that elastic deformation, especially elastically restoring deformation, of at least one of the coupling section and the complementary coupling section is impaired or prevented. The elastic deformation of at least one of the coupling section and the complementary coupling section can be prevented or impaired in such a way that the coupling section and the complementary coupling section are not detachably coupled to each other. This applies particularly as long as the locking element is not, or has not been, removed from the locking position, for example, by moving the locking element into the non-locking position.

[0015] The securing position can, in particular, be a position on the recording that differs from the non-secure position.

[0016] In exemplary embodiments, the coupling section, the complementary coupling section and the locking element can be designed to be complementary to each other in such a way that, in the coupled state in which the coupling section and the complementary coupling section are coupled together, the locking element can be moved from the non-locking position to the locking position.

[0017] In exemplary embodiments, the locking element can be reversibly moved into the locking position while coupled. In other words, the locking element can, for example, be reversibly positioned in the locking position. In this case, the locking element can be moved back to the non-locking position without damage, in particular without destruction and / or without damaging or even destroying the coupling section and / or the complementary coupling section. In alternative embodiments, the locking element can be irreversibly moved into the locking position while coupled. In other words, the locking element can, for example, be irreversibly positioned in the locking position. The irreversibility of the movement, orAn irreversible arrangement can in particular be a transfer or arrangement that is not detachable without damage to the securing element and / or at least one of the coupling section and the complementary coupling section, and in particular cannot be detached without destruction.

[0018] The reversible transferability to the locking position or the reversible arrangement in the locking position advantageously enables the coupling sections and the locking element to be reused, for example after maintenance, repair and / or removal and installation of the flat connector system, for example in another vehicle, in particular a car.

[0019] The irreversible transferability to the securing position or the irreversible arrangement in the securing position advantageously enables a particularly stable securing of the coupled state.

[0020] The advantage is that the locking element, which is fixed in the non-locking position, can be easily moved into the locking position after coupling the coupling section and the complementary coupling section.

[0021] For example, the locking element can be pre-assembled on the receptacle, particularly in the non-locking position. Specifically, the locking element can be pre-assembled on the receptacle before the positive-locking coupling of the flat connector and the complementary flat connector, particularly in the non-locking position.

[0022] This further facilitates the assembly of the flat connector system without hindering or impairing the coupling of the coupling section with the complementary coupling section.

[0023] The securing position of the securing element can, in particular, be a first relative position of the securing element relative to the coupling section or complementary coupling section that has the receptacle. Furthermore, the non-secure position of the securing element can be a second relative position of the securing element relative to the coupling section or complementary coupling section that has the receptacle.

[0024] The second relative position may, in particular, differ from the first relative position, or in other words, be different from the first relative position.

[0025] This advantageously ensures visual and / or haptic feedback when the flat connector system is in the secured state or enters the secured state, and / or when the flat connector system is in the unsecured state or enters the unsecured state.

[0026] In exemplary embodiments, the flat connector system with the locking element can have essentially the same height or thickness in the first relative position and in the second relative position. Height or thickness here refers in particular to a dimension of the flat connector system with the locking element in which the flat connector system is described as flat.

[0027] The flat connector system comprising or consisting of a flat connector, complementary flat connector and locking element can, particularly in the locked state and / or in the unlocked state, have, for example, a height or thickness in the range of approximately 3.0 mm to approximately 7.0 mm, in particular in the range of approximately 4.5 mm to approximately 6.5 mm, in particular of approximately 6 mm.

[0028] The flat connector system comprising or consisting of a flat connector, complementary flat connector and locking element can, in particular in the locked state and / or in the unlocked state, for example have a height or thickness of less than about 7.5 mm, in particular less than about 6.5 mm, preferably a maximum of about 6.0 mm, in particular about 6 mm.

[0029] This allows for the advantageous provision of a particularly space-saving flat connector system, which can be easily installed even when installation space or free space for assembly is limited, especially while ensuring a predetermined connection reliability.

[0030] Furthermore, the flat connector system, due to its specified heights and thicknesses, is advantageously suited for vehicles, particularly for use in motor vehicles such as cars, where installation space and vertical clearance are often very limited. For example, these heights and thicknesses allow for the advantageous mounting of components such as air ducts (e.g., for air conditioning systems) above and / or below the flat connector system, while simultaneously ensuring a predetermined connection reliability.

[0031] In exemplary embodiments, the coupling section, the complementary coupling section and the locking element can be designed to be complementary to each other in such a way that, in the decoupled state, the locking element is fixed in the non-locking position in such a way that the locking element is arranged in the locking position in a captive manner on the receptacle, or in other words, is fixed in a captive manner on the receptacle.

[0032] This further simplifies the assembly process, as it advantageously allows for simple pre-assembly of the locking element on the mount, which in turn facilitates subsequent assembly of the flat connector and the complementary flat connector.

[0033] Furthermore, securing the coupling of the coupling section with the complementary coupling section, or of the flat connector with the complementary flat connector, can be facilitated, whereby the locking element only needs to be moved from the captive arrangement in the non-locking position to the locking position. Due to the pre-assembly of the locking element on the receptacle, it is no longer necessary to position the locking element on the receptacle when connecting the flat connectors, thus advantageously reducing the number and spatial extent of the steps required to bring the flat connector system into the locked state, or in other words, to convert it.

[0034] In exemplary embodiments, the coupling section, the complementary coupling section and the locking element can be designed to be complementary to each other in such a way that in the decoupled state, in which the coupling section and the complementary coupling section are not coupled to each other, the locking element is fixed in the non-locking position in such a way that a transfer of the locking element into the locking position is blocked, or in other words, prevented.

[0035] This further simplifies assembly, as the secure coupling of the coupling section with the complementary coupling section, or of the flat connector with the complementary flat connector, is advantageously simplified, particularly by requiring the locking element to be moved only from a precisely definable or defined non-locking position to the locking position. In other words, the assembly of the flat connector system, and specifically the movement of the locking element into the locking position, can be advantageously predefined.

[0036] In exemplary embodiments, the secured state of the flat connector system can be a releasable secured state. However, the secured state is specifically not releasable as long as, or when, the locking element is in the locking position.

[0037] For example, the flat connector system can be reversibly transitionable between the secured and unsecured states. In particular, the locking element in the coupled state of the flat connector system, and especially exclusively in the coupled state of the flat connector system, can be transitioned between the secured and unsecured states, and in particular, can be transitioned reversibly. The coupled state represents the state in which the coupling section and the complementary coupling section are positively coupled.

[0038] In particular, the locking element can be moved along the receptacle between the locked and unlocked states, especially reversibly. Moving the locking element between the locked and unlocked states (or between the locking position and the non-locking position) can, in particular, involve a movement that is essentially parallel to the insertion direction of the flat connector. Alternatively or additionally, moving the locking element between the locked and unlocked states (or between the locking position and the non-locking position) can, in particular, involve a movement that is essentially perpendicular to the vertical or horizontal direction of the flat connector system.

[0039] This allows the flat connector system to be easily assembled, or in other words, coupled, even in relatively small installation spaces, and in particular, to be permanently coupled. Specifically, this makes the flat connector system easy to assemble, meaning simple for an operator or operating device to install.

[0040] Several terms will be used repeatedly below, and their understanding will be facilitated by the following definitions.

[0041] The secured state of the flat connector system describes, in particular, a state in which the coupling section and the complementary coupling section, or the flat connector and the complementary flat connector, are permanently coupled to one another, and especially are not detachable without damage or destruction. In other words, the secured state is a state in which the flat connector and the complementary flat connector are permanently coupled to one another without prior removal of the locking element from its locking position, and especially are not detachable without destruction.

[0042] The unsecured state of the flat connector system, which is also described here as the unsecured state, describes in particular a state in which the coupling section and the complementary coupling section or the flat connector and the complementary flat connector are detachably coupled to each other, in particular are detachably coupled to each other without damage or destruction, for example, are reversibly detachably coupled to each other.

[0043] The coupled state of the flat connector system describes, in particular, a state in which the coupling section and the complementary coupling section, or the flat connector and the complementary flat connector, are coupled to each other, especially by a positive locking connection. In exemplary embodiments, the coupling section and the complementary coupling section, or the flat connector and the complementary flat connector, can additionally or alternatively be coupled to each other by friction locking and / or by a material locking connection in the coupled state. In the coupled state of the flat connector system, the coupling section and the complementary coupling section, or the flat connector and the complementary flat connector, can, in particular, touch each other at least partially (mutually), especially with a preload (mutually).

[0044] In the coupled state, the flat connector and the complementary flat connector can be electrically conductively connected to each other.

[0045] In the coupled state of the flat connector system, the flat connector system can in particular be in the secured state or the unsecured state.

[0046] The decoupled state of the flat connector system, also described herein as the uncoupled state, describes in particular a state in which the coupling section and the complementary coupling section, or the flat connector and the complementary flat connector, are not coupled to each other, and in particular are not positively coupled to each other. In exemplary embodiments, the coupling section and the complementary coupling section, or the flat connector and the complementary flat connector, in the decoupled state can be neither positively coupled, nor frictionally coupled, and / or materially coupled to each other. In the decoupled state of the flat connector system, the coupling section and the complementary coupling section, or the flat connector and the complementary flat connector, in particular do not touch each other, or touch without any (mutual) preload.

[0047] In the decoupled state of the flat connector system, the coupling section and the complementary coupling section or the flat connector and the complementary flat connector can alternatively or additionally be non-conductively connected to each other.

[0048] In an exemplary decoupled state, the coupling section and the complementary coupling section or the flat connector and the complementary flat connector can be opposite each other in the plugging direction or arranged opposite each other.

[0049] Plug direction: The plug direction describes in particular a direction in which the coupling section and the complementary coupling section or the flat connector and the complementary flat connector can be moved relative to each other in order to be converted into the coupled state and / or into the decoupled state.

[0050] The insertion direction of the flat connector can be essentially parallel to the insertion direction of the complementary flat connector. Additionally or alternatively, the insertion direction of the flat connector can be essentially opposite to the insertion direction of the complementary flat connector.

[0051] It is understood that the insertion direction during assembly may deviate from the insertion direction defined here, as long as it results in a coupling, in particular a damage-free coupling, of the flat connector with the complementary flat connector.

[0052] Height direction or thickness direction: The height direction, also described here as the thickness direction, describes in particular a direction in which the flat connector system, or the flat connector or the complementary flat connector, is usually referred to as flat. The height direction or thickness direction refers to the flat connector system or the flat connector or the complementary flat connector in a typical operating position of the flat connector system or the flat connector or complementary flat connector.

[0053] The vertical or thickness direction can be essentially perpendicular or perpendicular to the insertion direction. The operating position of the flat connector system, for example during installation in a motor vehicle, can be in various spatial directions relative to the vehicle, so that the vertical direction, as used here, does not necessarily have to correspond to a vertical direction of the vehicle.

[0054] Width direction: The width direction can, in particular, correspond to a main extension direction of the flat connector and / or the complementary flat connector. The width direction can, in particular, essentially correspond to a direction in which a plurality of contacts and / or conductor elements of the flat connector and / or the complementary flat connector are arranged side by side, especially to make electrically conductive contact with the contacts or conductor elements of the other flat connector and the complementary flat connector. The width direction can, in particular, be essentially perpendicular or perpendicular to the thickness direction.

[0055] Longitudinal direction: The longitudinal direction can, in particular, correspond to the main extension direction of a flat ribbon and / or a flexible printed circuit board, which is connected to at least one of the flat connectors and / or the complementary flat connector. It is understood that the flat ribbon and / or the flexible printed circuit board, in a position of use, for example in a vehicle, need not have a flat contour, but may, for example, be corrugated, stepped, or have other features. The longitudinal direction of the flat ribbon and / or the flexible printed circuit board can therefore, in particular, correspond to a manufacturing state of the flat ribbon and / or the flexible printed circuit board, with a substantially elongated extension.

[0056] The longitudinal direction can, in particular, essentially correspond to a direction in which a plurality of contacts and / or conductor elements of the flat connector and / or the complementary flat connector extend, at least section by section, in particular to make electrically conductive contact with the contacts or conductor elements of the other flat connector and the complementary flat connector. The longitudinal direction can be essentially parallel to the insertion direction. The longitudinal direction can, in particular, point essentially in the same direction as the insertion direction.

[0057] Furthermore, the longitudinal direction can be essentially perpendicular or perpendicular to the thickness direction and / or the width direction.

[0058] The thickness or height direction, the width direction and the longitudinal direction can together form a right-handed system.

[0059] The insertion direction can be essentially parallel to the longitudinal direction. Alternatively or additionally, the insertion direction can be essentially perpendicular to the width direction and / or the height or thickness direction.

[0060] Flat ribbon: A flat ribbon, as used here, describes a multi-core cable in which the cores are arranged and / or guided essentially parallel to one another, particularly in the width direction. The flat ribbon cable can, for example, have up to 96 cores. The distance between immediately adjacent cores can, for example, be approximately 0.5 mm to approximately 2.54 mm, whereby the distance between the cores does not have to be constant across the width of the flat ribbon, but can, in particular, be essentially constant.

[0061] Multi-core ribbon cables offer the advantage that a large number of cores can be easily connected using insulation displacement technology (IDC) with a pin header, solder adapter, or other connector, instead of having to strip and solder them individually. In particular, signal crosstalk in ribbon cables is significantly lower than in round cables and can be better controlled by the signal arrangement and the use of ground lines between critical signals.

[0062] The flat ribbon can, for example, have a shield, such as an aluminum or copper foil wrapped around the flat ribbon.

[0063] Flexible printed circuit boards (FPCs): Flexible printed circuit boards are flexible and, in particular, comparatively thin circuit boards. Flexible printed circuit boards can, for example, comprise or consist of conductive films, and especially polyimide films. Assemblies built with these are more expensive, but enable high data transmission in a space-saving manner. However, flexible printed circuit boards typically have higher manufacturing tolerances compared to ribbon cables.

[0064] Both the flat ribbon and the flexible printed circuit board advantageously exhibit a significantly smaller extent in the thickness direction than in the width direction and / or length direction. In particular, the flat ribbon and / or the flexible printed circuit board can have an extent in the thickness direction that is approximately, or at least an order of magnitude, smaller than in the width direction and / or length direction.

[0065] The flat ribbon and, above all, the flexible circuit board advantageously enable a space-saving arrangement and routing of electrical signals in a motor vehicle, such as a car, especially for routing high-frequency electrical signals to or from a multimedia unit of a motor vehicle, such as a car.

[0066] When a direction or angle is described with the addition of "essentially" or "approximately" or "about", this addition is intended to refer in particular to a deviation from the direction or angle in question in the range of 0° to 5°.

[0067] If a spatial measure, spatial ratio or other ratio is given with the addition of "essentially" or "approximately" or "about", this addition is intended to indicate, in particular, a deviation from the measure or ratio in question in the range of 0% to 10%.

[0068] In preferred embodiments of the flat connector system, the receptacle can have a latch which interacts with a latch projection of the locking element in such a way that in the decoupled state, in which the coupling section and the complementary coupling section are not coupled to each other, in particular not positively coupled to each other, the latch projection is in engagement with the latch, such that the locking element is fixed in the non-locking position.

[0069] In other words, in exemplary embodiments the receptacle can have a trap and the locking element can have at least one trap projection complementary to the trap.

[0070] The trap can, for example, include at least one opening in the receptacle and / or a stop on the receptacle, with which at least one trap projection can engage or engage.

[0071] The flat connector system can be designed in such a way that, in the decoupled state, the latch engages with at least one latch projection, or when the locking element moves towards the locking position, at least one latch projection engages with the latch.

[0072] The engagement and / or stop between the trap and at least one trap projection can, in particular, be a form-fitting engagement.

[0073] The engagement and / or stop between the latch and at least one latch projection can, in particular, cause the safety element to be fixed in the non-locking position. In other words, the engagement between the latch and at least one latch projection can block, or in other words prevent, the movement of the safety element into the locking position.

[0074] The trap and at least one trap projection advantageously enable passive and therefore particularly reliable locking of the safety element in the decoupled state in the non-locking position.

[0075] Furthermore, this makes it advantageous to separate the coupling of the flat connector with the complementary flat connector from securing the coupling of the flat connector with the complementary flat connector, and in particular to predefine them independently of each other.

[0076] In particular, the forces required to connect the flat connector can be separated from, or independently predefined, the forces required to secure the connection. This separation or independent predefinition can relate to the direction in which the respective forces are to be applied and / or to the magnitude of the respective forces.

[0077] It is understood that in exemplary embodiments the receptacle may have at least one latch projection, and the locking element may have a latch with, for example, at least one opening and / or a stop, which can be engaged or brought into stop with each other, particularly when the flat connector system is in the uncoupled state.

[0078] In exemplary embodiments, the at least one opening and / or stop of the trap and / or the at least one trap projection can extend substantially perpendicular to the insertion direction. For example, the at least one opening and / or stop of the trap and / or the at least one trap projection can extend substantially in the vertical direction. Alternatively or additionally, the at least one opening and / or stop of the trap and / or the at least one trap projection can extend, at least partially, substantially in the horizontal direction.

[0079] By extending the engagement or stop essentially perpendicular to the insertion direction, it is advantageous to make incorrect assembly more difficult or to prevent it, for example, if the locking element is moved into the locking position before the coupled state is reached.

[0080] Furthermore, the assembly can be advantageously simplified in such a way that even when a force is applied to the locking element in the insertion direction, e.g. when pressing the locking element in the insertion direction, only the flat connector or the alternative flat connector which has the receptacle for the locking element is moved in the insertion direction, but in particular the locking element is not moved into the locking position.

[0081] In preferred embodiments of the flat connector system, one of the coupling sections and the complementary coupling section can comprise an interlocking section, and the other of the coupling section and the complementary coupling section can comprise a releasable interlocking element which, in the coupled state of the flat connector system, i.e., in the coupled state between the connector and the complementary connector or between the coupling section and the complementary coupling section, engages the interlocking section. In the locked state of the flat connector system, the locking element can prevent the releasable interlocking element from resetting in such a way that the coupling section and the complementary coupling section are coupled to each other in a way that prevents damage-free or non-destructive releasability.

[0082] The resilient, interlocking element can, in particular, be elastically resilient.

[0083] The interlocking section can be a complementary, elastically rebounding element, in particular a complementary elastically rebounding element.

[0084] This can advantageously simplify coupling. Furthermore, it can reduce wear and tear from frequent coupling and uncoupling.

[0085] In exemplary embodiments, the accessible section can be an essentially rigid accessible section.

[0086] The essentially rigid interlocking section can be so rigid, in particular, that when coupling, essentially only the restorable interlocking element deforms, and the interlocking section does not deform or is not deformed in any significant way.

[0087] This allows the installation space required for coupling to be precisely predetermined. Furthermore, predetermined breaking points and / or predetermined breaking parts can be advantageously defined, so that, for example, only one of the flat connectors and the complementary flat connector is defined as wear-prone and replaceable, while the other is defined as comparatively durable.

[0088] The resilient, interlocking element can, in particular, comprise one or more prongs. One of the prongs can include one or more projections for engaging behind the section to be engaged in the coupled state.

[0089] The prong(s) can extend essentially in the insertion direction. In other words, the prong(s) of the resilient, interlocking element can, in particular, have a main extension that is essentially parallel to the insertion direction.

[0090] The section that can be engaged behind can include one or more projections and / or one or more recesses, behind or into which the resilient, engaging element can reach.

[0091] The projections and / or recesses of the interlocking section and / or the interlocking element can extend essentially perpendicular to the insertion direction, and, for example, essentially in the vertical direction. Alternatively or additionally, the projections and / or recesses of the interlocking section and / or the interlocking element can extend at least partially in the horizontal direction.

[0092] An extension of the projection(s) and / or the setback(s) of the section that can be grasped and / or the grasping element essentially in the vertical direction advantageously prevents tilting in the lateral direction.

[0093] One of the flat connectors and the complementary flat connector can in particular comprise one or more guide elements, which can, for example, include guide pins. Preferably, one of the flat connectors and the complementary flat connector can comprise one or more pairs of guide pins opposite each other in the width direction.

[0094] The other of the flat connector and the complementary flat connector can in particular comprise one or more guide receptacles which are designed complementary to the guide elements, in particular to the guide pins. In preferred embodiments, the other of the flat connector and the complementary flat connector can in particular comprise one or more pairs of guide receptacles opposite each other in the width direction.

[0095] A guide receptacle of one or more guide receptacles can comprise a guide projection, a guide groove, and / or a guide opening. The guide projection, guide groove, and / or guide opening can, in particular, comprise a contact surface, a sliding guide groove, and / or an interlocking section for one or more guide elements, especially guide pins.

[0096] The guide element(s), in particular the guide pin(s), can be resilient, in particular elastically resilient.

[0097] The guide pin(s) may, in the insertion direction, have a greater extension than the reboundable engaging element and / or the reboundable engaging section.

[0098] In particular, the guide pin(s) may be designed to come into contact with a guide receptacle during coupling, especially to come into contact under preload before the coupling section comes into contact with the complementary coupling section.

[0099] This allows for an advantageous connection between the flat connector and its complementary counterpart. Furthermore, this effectively prevents tilting during connection.

[0100] Furthermore, particularly when guided by guide tines opposite each other in the width direction, and complementary guide receptacles, especially under preload, a particularly precise guidance for the coupling of the coupling section with the complementary coupling section can be ensured.

[0101] The flat connector and the complementary flat connector that do not have the receptacle may have one or more release elements which, in the coupled state, are designed to allow the locking element to be moved from the non-locking position to the locking position.

[0102] The release element(s) may, for example, have a main extension in the insertion direction. The release element(s) may have a rounded end and / or chamfer at a distal end. The distal end of a release element is, in particular, the end of the release element facing the receiver.

[0103] The release element(s) can be designed in particular to provide a bridging or deactivation of the trap in the coupled state of the flat connector with the complementary flat connector, such that the trap projection(s) do not engage with the trap, or such that the engagement between trap projection(s) and trap is released.

[0104] For example, the release element(s) can provide a lock to prevent the trap projection(s) from engaging the trap. Specifically, the release element(s) can include or provide a cover or ramp for the trap, which prevents engagement of the trap when coupled.

[0105] Alternatively or additionally, the release element(s) can be designed to deform, in a restorable manner, at least one of the receptacle and the latch projection(s) in the coupled state, in particular to deform elastically. The restorable or elastically restorable deformation can be such that the latch and the latch projection(s) do not engage or are not engaged due to the elastic deformation. The restorable or elastically restorable deformation can occur in the coupled state already in the non-locking position of the locking element, or it can occur only when the locking element is moved from the non-locking position to the locking position.

[0106] The locking element can be moved from the non-locking position to the locking position, in particular by means of a movement in a main direction of movement, essentially in the insertion direction. In exemplary embodiments, preferably excluding elastically restorable deformations or deflections, the movement can include or be a translational movement. The translational movement can, in particular, be essentially parallel to the insertion direction.

[0107] Moving the locking element from the locking position to the non-locking position can involve a correspondingly reversed movement and, in particular, translation.

[0108] The release element(s) advantageously ensure that the locking element only reaches or can be moved into the locking position when the flat connector is coupled to the complementary flat connector. This, in turn, facilitates assembly. Specifically, simple coupling, for example with a locking element pre-mounted on the receptacle, can be ensured. Subsequently, simple locking by the locking element can be guaranteed. This provides haptic and / or visual feedback when the locking element is moved from the non-locking position to the locking position, thus ensuring easy verification of the locking quality of the flat connector system.

[0109] In preferred embodiments of the flat connector system, the locking element can have a locking surface which, in the locked state of the flat connector system, rests against a side of the retractable, interlocking element facing away from the section that can be engaged.

[0110] The locking element can in particular have a locking surface which, in the locked state of the flat connector, is at least partially flush, or in other words, at least partially adjacent to a surface, on a side of the recoil-capable locking element facing away from the section that can be engaged.

[0111] The locking surface advantageously provides a particularly secure locking mechanism against the coupling between the flat connector and its complementary counterpart. In particular, it advantageously ensures a distributed load evenly in the event of a disconnection without first moving the locking element into the non-locking position. This can advantageously improve the service life of the locking element, the interlocking section, and the self-resetting interlocking element.

[0112] Furthermore, the securing surface and the associated area-wide securing against loosening when the securing element is in the securing position ensure a particularly high destructive force, which is required to destructively release the secured coupling.

[0113] Furthermore, the design of the locking surface can advantageously predefine a predetermined breaking point, which will fail first if the secured coupling is released, i.e., without the locking element having been moved to the non-locking position beforehand. For example, at least one or more of the locking surface, the interlocking section, and the interlocking element can have one or more tapered sections and / or grooves as predetermined breaking point(s).

[0114] The locking element, and in particular the locking surface of the locking element, can be designed to block or at least hinder a restoring deformation of the restorable, engaging element and / or the engageable section in the locking position.

[0115] For example, when the locking element is in the locked position, the self-resetting, interlocking element can be arranged essentially in a sandwich-like manner between the interlocking section and the locking element or the locking surface of the locking element. In particular, when the locking element is in the locked position, the self-resetting, interlocking element can be sandwich-like clamped between the interlocking section and the locking element or the locking surface of the locking element. The sandwich-like arrangement or clamping can be such that the self-resetting, interlocking element is secured against loosening, especially non-destructive loosening.

[0116] The securing surface can, for example, extend approximately parallel to the insertion direction.

[0117] In further exemplary embodiments, the locking surface can be inclined relative to the insertion direction. For example, the locking surface can have an inclination relative to the insertion direction in the range of approximately 5° to approximately 30°, preferably in the range of approximately 8° to approximately 25°, and particularly preferably from approximately 10° to approximately 20°. The inclination of the locking surface relative to the insertion direction can, in particular, be an inclination of the locking surface that can be detected in a (sectional) plane extending essentially in the longitudinal and vertical directions. The inclination is, in particular, the angle enclosed by the locking surface and the insertion direction.

[0118] The inclined locking surface advantageously allows a force component to be generated in the vertical direction if the coupling is released while locked. This force component is effectively distributed and dissipated by the planar, inclined locking surface. This, in turn, advantageously provides reliable protection against the coupling releasing while locked.

[0119] In exemplary embodiments, the locking surface, in the locking position of the locking element, can be pre-tensioned with a locking pre-tension force against the restorable, engaging element and / or the engageable section.

[0120] In exemplary embodiments, the locking element can at least partially slide into the locking position during the transition to the locking position.

[0121] In exemplary embodiments, the locking element and a coupling section and its complementary coupling section can have mutually complementary sliding surfaces. The locking element can be designed to elastically return any rebound deflection during its transition to the locking position, such that the transition to the locking position results in a progressively smaller elastic deflection of the locking element. In the locking position, the locking element may still exhibit some residual elastic deflection or no elastic deflection at all. By way of example, the locking element can be pre-tensioned against the rebounding element and / or the section that can be engaged, or it can be arranged without pre-tension in the locking position.The mutually complementary sliding surfaces can be provided, for example, by a securing projection of one of the coupling section and the complementary coupling section, and a projection of the securing element that is complementary to the securing projection.

[0122] In further exemplary embodiments, the locking element can, during a release process essentially opposite to the insertion direction, be pre-tensioned against the restorable engaging element and / or the engageable section by the movement against the insertion direction. For example, during a release process with movement against the insertion direction, the locking element can exhibit a recurring elastic deflection, which causes an increasing pre-tension of the locking element or its locking surface against the restorable engaging element and / or the engageable section.

[0123] Due to the mutually complementary sliding surfaces and the elastic return of a deflection of the locking element when moving into the locking position, the movement of the locking element from the non-locking position to the locking position can be advantageously passivated, at least section by section.

[0124] This can further simplify assembly. Furthermore, haptic and / or visual feedback of the locking element's movement into the locking position can be improved, particularly by allowing the locking element to perform part of the movement into the locking position automatically, i.e., with reduced or no effort, and especially in a way that is visually observable for the operator or operating device.

[0125] In preferred embodiments of the flat connector system, the locking element can be arranged or positioned in such a way that the locking element can be moved between the locking position of the locking element and the non-locking position of the locking element without releasing the positive locking arrangement on the receptacle.

[0126] The locking element may, in particular, have one or more retaining elements. The one or more retaining elements may be designed to engage positively with one or more corresponding locking devices.

[0127] The retaining element(s) can be designed, for example, as a projection or an opening on the locking element, extending substantially perpendicular to the insertion direction, for example, extending substantially in the width direction. The one or more retaining devices can be designed, in particular, as openings, stops, or projections complementary to the one or more retaining elements, extending substantially perpendicular to the insertion direction, for example, extending substantially in the width direction.

[0128] The engagement between the one or more retainers with the one or more retaining devices can be designed further back, particularly in the insertion direction, than the engagement between the trap and the one or more trap projections.

[0129] The retaining element(s) can form a positive connection with the retaining device(s), in particular against the insertion direction.

[0130] This allows the locking element to be advantageously secured against detachment from the mounting.

[0131] In particular, the locking element, when the flat connector is decoupled from the complementary flat connector, can advantageously be held in a position between an engagement of a retaining element and a retaining device, or multiple thereof, and an engagement of a latch and one or more latch projections. The engagement of the retaining element and the retaining device, or multiple thereof, limits the position essentially against the insertion direction. The engagement of the latch and one or more latch projections limits the position essentially in the insertion direction.

[0132] To limit the position of the locking element on the receptacle, the locking element and the receptacle can have adjacent contact surfaces, at least in sections, which are specifically designed to limit a position in and / or against the vertical direction, and / or to limit a position in and / or against the horizontal direction.

[0133] Limiting the position of the locking element advantageously ensures a predetermined elastic deflection of the locking element and / or the receptacle, for example by means of a release element.

[0134] The retaining element(s) can form a positive-locking, restorable engagement with the retaining device(s).

[0135] The retaining device(s) can, for example, be arranged on one or more elastically restorable prongs of the locking element.

[0136] The restorable engagement between the retaining element(s) and the retaining device(s) can, in particular, define a predetermined release force to detach the locking element from the receptacle, especially to detach the locking element from the receptacle substantially in the opposite direction of insertion.

[0137] In the coupled state of the flat connector with the complementary flat connector, the position of the locking element on the receptacle may be limited, in particular by the flat connector or the complementary flat connector which does not have the receptacle.

[0138] The locking element can therefore be advantageously and, in particular, passively limited in its position, both in the decoupled state and in the coupled state. Specifically, the position of the locking element in the non-locking position can be advantageously predetermined by means of the engagements consisting of a retaining device or multiple retaining devices, as well as the latch and one or more latch projections.

[0139] Furthermore, it is advantageous to ensure repeatable assembly and, in particular, repeatable actuation of the locking element, thereby improving the quality of the locking of the flat connector system and its verifiability.

[0140] In preferred embodiments of the flat connector system, one of the coupling section and the complementary coupling section can have a locking projection, and the locking element can have a projection complementary to the locking projection, wherein the locking projection and the complementary projection of the locking element can define a release force to transfer the locking element from the secured state of the flat connector system to the unsecured state of the flat connector system.

[0141] Alternatively or in addition to the release force, the projection of the locking element, i.e. the complementary projection of the locking element and the locking projection, can define a predetermined locking force for transferring the locking element from the non-locking position to the locking position.

[0142] In exemplary embodiments, in particular the receiving of one of the coupling section and the complementary coupling section can have the locking projection, wherein the locking projection and the complementary projection of the locking element can define the release force to transfer the locking element from the secured state of the flat connector system to the unsecured state of the flat connector system.

[0143] In further exemplary embodiments, in particular, one of the coupling section and the complementary coupling section, which does not have the receptacle, can have the locking projection, wherein the locking projection and the complementary projection of the locking element can define the release force to transfer the locking element from the secured state of the flat connector system to the unsecured state of the flat connector system.

[0144] The locking projection and the complementary projection of the locking element can be designed, in particular, to define a predetermined release force in a substantially predetermined release direction. The release direction can roughly correspond to a direction opposite to the insertion direction. However, the release direction is not limited to a single direction. Rather, it is sufficient that a major portion of the release force is applied in the release direction.

[0145] The retaining projection can, for example, have an incline and / or a rounded shape. The rounded shape can, for example, be spherical, at least in sections, or hemispherical, and / or can, for example, be arcuate, or in other words, semicircular in cross-section, without being limited to a precise circular shape.

[0146] The projection of the locking element can have a contour corresponding to that of the locking projection, but is not limited to this. For example, the projection of the locking element can have an inclination that corresponds to the inclination of the locking projection, but it can also have a different inclination.

[0147] The locking projection and / or the projection of the locking element complementary to the locking projection may, in particular, have a section-wise contour.

[0148] For example, the locking projection and / or the projection complementary to the locking projection of the locking element may have a first contour section which the locking projection and / or the projection have on a side where the locking projection and the projection face each other when the locking element is in the non-locking position.

[0149] Additionally or alternatively, the locking projection and / or the projection complementary to the locking projection of the locking element may have a second contour section, which the locking projection and / or the projection have on a side where the locking projection and the projection face each other when the locking element is in the locking position.

[0150] The first contour section or the first pairing of first contour sections of the locking projection and the complementary projection of the locking element can, in particular, differ from the second contour section or from the second pairing of second contour sections of the locking projection and the complementary projection of the locking element.

[0151] The locking projection and the projection of the locking element complementary to the locking projection advantageously enable a predetermined release force, and in particular a predetermined locking force, to be ensured, with which the locking element can be moved into the non-locking position or into the locking position.

[0152] Furthermore, the predetermined locking force and the predetermined release force can advantageously be defined independently of each other, particularly by means of the section-wise contour.

[0153] This allows for a significant simplification and predefinition of both the assembly and disassembly of the flat connector system.

[0154] In particular, by means of the second contour section or the second pairing of second contour sections of the locking projection and the complementary projection, a passive transfer of the locking element into the locking position can be effected, at least in part.

[0155] In particular, the projection of the locking element can be arranged on a resilient prong, especially an elastically resilient locking prong of the locking element. The elastically resilient locking prong can be designed, in particular, to be deflected elastically, at least partially, when being moved into the locking position.

[0156] The locking prong, which is elastically deflected after overcoming the locking force, can be designed to return to its elastic deflection. During the return of the locking prong's elastic deflection, the projection of the locking prong is designed to slide off the locking projection, driven by the release of the elastic preload.

[0157] This allows the locking element to be moved passively, at least partially, into the locking position, which is advantageously perceptible to the operator or the operating device both haptically and / or visually. This can advantageously improve assembly.

[0158] Another aspect of the present invention relates to a flat connector with a locking element, comprising: a coupling section for positive locking coupling with a complementary coupling section of a complementary flat connector, wherein the coupling section has a receptacle on which the locking element is arranged at least section by section, - wherein the coupling section and the locking element are designed to be complementary to each other such that in a decoupled state of the flat connector, in which the coupling section and the complementary coupling section are not coupled to each other, the locking element is fixed in the non-locking position.

[0159] The present flat connector can, in particular, correspond to the flat connector of the aspect relating to the flat connector system described here.

[0160] Exemplary, preferred and alternative embodiments of the aspect relating to the flat connector, as well as their effects, may in particular correspond to those explained in relation to the aspect relating to the flat connector system, and vice versa.

[0161] Another aspect of the present invention relates to a locking element for a flat connector system or for a flat connector, in particular for a flat connector system according to the aspect relating to the flat connector system or for a flat connector according to the aspect relating to the flat connector, wherein the locking element comprises: one or more projections for the positive locking attachment of the locking element to a receptacle of a coupling section or a complementary coupling section of the flat connector system; a locking section which is designed to secure a positive locking coupling of the coupling section and the complementary coupling section; and one or more latch projections which are designed to engage with a latch of the receptacle in order to block the locking element from being moved into a locking position on the receptacle.

[0162] Exemplary, preferred and alternative embodiments of the aspect relating to the locking element, as well as their effects, may in particular correspond to those explained in relation to the aspect relating to the flat connector system and / or the aspect relating to the flat connector described here, and vice versa.

[0163] The safety section may, in particular, have one or more safety surfaces.

[0164] The securing surface is specifically designed to engage, at least partially, over a surface area with a resiliently interlocking element. Specifically, the securing surface is designed to engage, at least partially, over a surface area with a rear side, or in other words, a side of the resiliently interlocking element facing away from a section that can be engaged.

[0165] This advantageously allows for effective force distribution and transmission in a secure position. This, in turn, ensures a particularly stable connection of the flat connector system.

[0166] The locking element can, in particular, have one or more prongs. The one or more prongs can, in particular, extend substantially in the longitudinal direction or substantially in the insertion direction.

[0167] The longitudinal direction of the locking element can, in a non-locking position and / or in a locking position which the locking element can assume on the flat connector system, essentially correspond to the insertion direction of the coupling section on whose receptacle the locking element is arranged.

[0168] In preferred embodiments, the locking element has several prongs. The prongs can be designed to be resilient, particularly elastically resilient. The multiple prongs can have a main extension direction in the longitudinal direction or in the insertion direction.

[0169] Additionally or alternatively, the multiple tines can be separated from each other, particularly in the lateral direction, and furthermore, they can be spaced apart from each other, particularly in the lateral direction.

[0170] The multiple prongs, which can be spaced apart from each other, particularly in the width direction, advantageously provide several elastically resilient sections whose respective elastic deflection is not coupled to each other.

[0171] This can advantageously prevent possible damage or fatigue, which may be caused, for example, by restorable interventions on individual tines, from causing damage to another functional restorable intervention which is formed on a separate tine.

[0172] In other words, the multiple prongs advantageously allow for a functional separation or division of functionally distinct interventions on individual prongs. This division advantageously ensures that potential damage to individual prongs does not immediately have a negative impact on functionally separate prongs. This, in turn, improves the repeatability of assembly and disassembly.

[0173] Another aspect of the present invention relates to a method for securing a positive-locking coupling between a flat connector and a complementary flat connector, wherein the flat connector has a coupling section and the complementary flat connector has a complementary coupling section which can be positively coupled to the coupling section, wherein the method comprises the steps: Arranging a locking element on a receptacle of the coupling section and the complementary coupling section; and moving the locking element from a non-locking position to a locking position on the receptacle, wherein the locking element is configured to provide a locked state of coupling between the coupling section and the complementary coupling section in the locking position, in which a loosening, in particular a non-destructive loosening, of the positive locking coupling between the coupling section and the complementary coupling section is prevented, -- wherein the coupling section, the complementary coupling section and the locking element are configured to be complementary to each other such that in a decoupled state, in which the coupling section and the complementary coupling section are not coupled to each other, the locking element is fixed in the non-locking position.

[0174] Moving the locking element from the non-locking position to the locking position does not necessarily result in the locking element actually reaching the locking position. In particular, in the decoupled state, the locking element is fixed in the non-locking position and therefore cannot move into the locking position. Only in the coupled state, where the coupling section and the complementary coupling section are connected, does the locking element reach the locking position when it is moved into this position.

[0175] In other words, the coupling section, the complementary coupling section and the locking element are designed to be complementary to each other in such a way that in an operating state in which the coupling section and the complementary coupling section are not coupled to each other, in particular not positively coupled to each other, the transfer of the locking element at the receptacle into the locking position is blocked.

[0176] This can advantageously simplify assembly, and in particular prevent the unintentional transfer of the locking element into the locking position, especially before the coupled state between the coupling section and the complementary coupling section is reached.

[0177] This allows the locking element to be advantageously pre-mounted on the fixture, further simplifying assembly. Furthermore, it ensures, in particular, that visual and / or haptic feedback occurs when the locking element moves into its locking position.

[0178] This further allows for the advantageous improvement of passive assembly, and in particular, the verifiability of assembly success.

[0179] Exemplary, preferred and alternative embodiments of the aspect relating to the method for securing a positive locking coupling between a flat connector and a complementary flat connector, as well as their effects, may in particular correspond to those explained with regard to the aspect relating to the flat connector system and / or the aspect relating to the flat connector and / or the aspect relating to the locking element, and vice versa.

[0180] In preferred embodiments of the method, the step of arranging the locking element may comprise a positive-locking arrangement of the locking element on the receptacle; and / or the step of moving the locking element into the locking position may comprise the application of a predetermined locking force to move the locking element into the locking position.

[0181] The form-fitting arrangement of the locking element on the receptacle can in particular include an arrangement of the locking element on the receptacle in which the locking element is deformed at least partially in a way that allows it to recover its shape, in particular in an elastically recoverable shape at least partially.

[0182] For example, one or more prongs of the locking element can be elastically deformed when the locking element is positioned on the receptacle. In particular, one or more prongs, each of which has at least one point of resistance, can be elastically deformed when the locking element is positioned on the receptacle.

[0183] In preferred embodiments, the restorable deformation of the locking element when the locking element is arranged on the receptacle can be limited to the prongs of the locking element, which comprise at least one retention element.

[0184] Additionally or alternatively, the restorable deformation of the locking element when the locking element is positioned on the receptacle, particularly starting from a position of the locking element separate from the receptacle, cannot refer to a prong that contributes to a release force and / or a locking force of the locking element. In other words, the restorable deformation of the locking element when the locking element is positioned on the receptacle, particularly starting from a position of the locking element separate from the receptacle, cannot refer to a prong that is involved in securing the locking element in the non-locking position.

[0185] The fixing of the locking element in the non-locking position involves in particular the one or more prongs on which the one or more retaining elements and / or the one or more trap projections are arranged or formed.

[0186] The arrangement of the securing element on the receptacle may in particular include transferring the securing element from a position separate from the receptacle to a position on the receptacle, which may in particular be the non-secure position.

[0187] The functional separation of the multiple prongs of the locking element advantageously prevents damage to a prong caused by deformation that is not caused by the intended function of the prong.

[0188] This advantageously allows for an improvement in the service life of the locking element and, consequently, in particular, the service life of the flat connector system. Furthermore, it advantageously enables predetermined locking and / or release forces to be maintained for a particularly long time. This advantageously improves the repeatability of the assembly, which is carried out, for example, by an operator or a control unit, and thus the assembly quality.

[0189] In preferred embodiments of the method, the receptacle can include a trap and the locking element can include a trap projection. wherein, if a step of positive locking coupling of the coupling section with the complementary coupling section is carried out before the locking element is moved into the locking position, the locking element can be moved into the locking position, and if a step of positive locking coupling of the coupling section with the complementary coupling section is not carried out before the locking element is moved into the locking position, the latch projection is engaged or comes into engagement with the latch in such a way that the locking element is fixed in the non-locking position.

[0190] In other words, the locking element can, in particular, have one or more latch projections which, in a decoupled state of the flat connector system, are formed when the locking element moves towards the locking position, in order to engage in the latch, so that moving the locking element into the locking position is blocked.

[0191] This allows the assembly process to be simplified and improved, particularly in a passive manner.

[0192] In preferred embodiments of the method, the step of transferring the locking element into the locking position may include moving the locking element substantially in the insertion direction, and / or one of the coupling section and the complementary coupling section may comprise a locking projection, and the locking element may comprise a projection complementary to the projection, wherein the projection and the complementary projection of the locking element in the locked state define a predetermined release force which must be applied to transfer the locking element from the locking position to a non-locking position.

[0193] By moving the locking element essentially in the insertion direction to the locking position, the rectification of the coupling section advantageously prevents accidental decoupling of the coupling section from the complementary coupling section when moving the locking element into the locking position.

[0194] The projection complementary to the locking projection can be arranged or formed, in particular, on a locking prong of the locking element. The locking prong can be designed to be resilient, in particular elastically resilient. The locking prong can be separated in the width direction, in particular spaced apart in the width direction, from one or more other prongs of the locking element. Elements for fixing the locking element in the non-locking position can be arranged or formed, in particular, on the one or more other prongs of the locking element.

[0195] The complementary projection to the locking protrusion, and in particular the separation of the locking prong from one or more other prongs, advantageously allows for the definition of a predetermined release and / or locking force for transferring the locking element from the non-locking position to the locking position, or vice versa. Furthermore, the predetermined release and / or locking force can advantageously be maintained over a long service life.

[0196] This advantageously improves the repeatability of the assembly, for example by an operator and / or a control unit, which in turn advantageously improves the assembly quality.

[0197] The following describes embodiments of the invention in more detail with reference to the accompanying figures. It is understood that the present invention is not limited to these embodiments and that individual features of the embodiments can be combined to form further embodiments within the scope of the accompanying claims.

[0198] It shows: Figure 1 is an oblique view of a flat connector system according to an embodiment of the present invention; Figure 2a is an oblique view of a flat connector system according to an embodiment of the present invention; Figure 2b is an oblique view of a flat connector system according to an embodiment of the present invention; Figures 3a and 3b are each an oblique view of a flat connector system according to an embodiment of the present invention; Figure 4a is an oblique view of a connector housing part according to an embodiment of the present invention; Figure 4b is an oblique view of a connector housing part of a flat connector with a conductor section according to an embodiment of the present invention; Figure 5a is an oblique view from above of a connector housing part of a flat connector according to an embodiment of the present invention;Figure 5: Oblique view from below of a connector housing part of a flat connector according to an embodiment of the present invention; Figure 6a: Oblique view from above of a flat connector system according to an embodiment of the present invention; Figure 6: Oblique view from below of a flat connector system according to an embodiment of the present invention; Figures 7a and 7b: Oblique views of a complementary flat connector each, according to an embodiment of the present invention; Figures 8a and 8b: Sectional views of a complementary flat connector each, according to an embodiment of the present invention; Figures 9a to 10: Sectional views of a flat connector system each, according to an embodiment of the present invention; Figure 10: Top view of a sectional view of a flat connector system according to an embodiment of the present invention;Figures 11a to 14b each show a sectional view of a flat connector system according to an embodiment of the present invention; Figure 15a shows a locking element according to an embodiment of the present invention; Figures 15b and 15c each show a contact for a flat connector according to an embodiment of the present invention; Figure 16 shows an oblique view of a flat connector system according to an embodiment of the present invention; Figure 17a shows an oblique view of a flat connector system according to an embodiment of the present invention; Figure 18a and 18b each show an oblique view of a flat connector system according to an embodiment of the present invention; Figure 19a shows an oblique view of a connector housing part according to an embodiment of the present invention;Figure 19: Oblique view of a connector housing part of a flat connector with conductor section, according to an embodiment of the present invention; Figure 20a: Oblique view from above of a connector housing part of a flat connector, according to an embodiment of the present invention; Figure 20: Oblique view from below of a connector housing part of a flat connector, according to an embodiment of the present invention; Figure 21a: Oblique view from above of a flat connector system, according to an embodiment of the present invention; Figure 21b: Oblique view from below of a flat connector system, according to an embodiment of the present invention; Figures 22a and 22b: Oblique views of complementary flat connectors, according to an embodiment of the present invention;Figures 23a and 23b each show a sectional view of a complementary flat connector according to an embodiment of the present invention; Figures 24a to 25 each show a sectional view of a flat connector system according to an embodiment of the present invention; Figure 25 is a top view of a sectional view of a flat connector system according to an embodiment of the present invention; Figures 26a to 29 each show a sectional view of a flat connector system according to an embodiment of the present invention; Figures 30a and 30 show a locking element according to an embodiment of the present invention, from above and from below; Figure 30c shows a contact for a flat connector according to an embodiment of the present invention;Figure 31 shows a flowchart of a method for ensuring a positive-locking coupling between a flat connector and a complementary flat connector according to the present invention; and Figure 32 shows a flowchart of a method for manufacturing a flat connector according to the present invention.

[0199] The Figure 1 , 2a , 2b , 3a , 3b , 4a , 4b , 5a , 5b , 6a , 6b , 7a , 7b , 8a , 8b , 9a , 9b , 10a , 10b , 11a , 11b , 12a , 12b , 13a , 13b , 14a , 14b and 15a refer in particular to a first embodiment of a flat connector system 1.

[0200] The Figure 16 , 17a , 17b , 18a , 18b , 19a ,19b , 20a , 20b , 21a , 21b , 22a , 22b , 23a , 23b , 24a , 24b , 25a , 25b , 26a , 26b , 27a , 27b , 28a , 28b , 29 , 30a and 30b These provisions relate in particular to a second embodiment of a flat connector system 1. The second embodiment of the flat connector system 1 has, in particular, a different coupling section 14 and a different complementary coupling section 54 than the first embodiment of the flat connector system 1. The second embodiment thus advantageously allows for a lower overall height of the flat connector system 1, while at the same time ensuring, in particular, secure assembly and locking of a coupled state.

[0201] The flat connector system 1 of the first and second embodiments can, in particular in the secured state and / or in the unsecured state, for example have a height in the vertical direction H of less than about 7.5 mm, in particular of less than about 6.5 mm, preferably of less than about 6.0 mm, more preferably of less than about 5.0 mm, and most preferably of less than about 4.5 mm.

[0202] In particular, the flat connector system 1 of the second embodiment, enabled by the arrangement or design of the coupling section 14 and the complementary coupling section 54 essentially in the width direction B between two groups of contacts 70 and between two sections of the conductor section 30, as exemplified in Fig. 18b shown, a height in the vertical direction H of less than 4.5 mm.

[0203] Unless explicitly stated otherwise, elements, their functions, relationships and procedural steps, which are explained using the first embodiment of the flat connector system 1, apply equally to the second embodiment of the flat connector system 1, and vice versa.

[0204] The Figures 15b and 15c refer in particular to a first embodiment of a contact 70. The contact 70, as described in the Figures 15b and 15c shown, can be used in both the first embodiment of the flat connector system 1 and the second embodiment of the flat connector system 1, but is preferably used in the first embodiment of the flat connector system 1.

[0205] The Figure 30c refers in particular to a second embodiment of a contact 70. The contact 70, as described in the Figure 30cshown, can be used in both the first embodiment of the flat connector system 1 and the second embodiment of the flat connector system 1, but is preferably used in the second embodiment of the flat connector system 1.

[0206] The flowcharts of Figure 31 and 32 refer to all of the embodiments of the existing flat connector systems 1.

[0207] The Figure 1 , 13a , 13b , 14a , 14b , 16 , 27b , 28a , 28b and 29 refer in particular to a coupled state of the flat connector system 1, wherein the locking element 5 is in the locking position in each case.

[0208] The Figures 2a , 10b , 11a, 11b , 12a, 12b , 17a , 25b , 26a, 26b and 27arefer in particular to a coupled state of the flat connector system 1, wherein the locking element 5 is in the non-locking position in each case.

[0209] The Figures 3a, 3b , 6a, 6b , 9a, 9b , 10a , 18a, 18b , 21a, 21b , 24a, 24b and 25a refer in particular to a non-coupled or decoupled state of the flat connector system 1, wherein the locking element 5 is arranged in the non-locking position in each case.

[0210] The coupled state of the flat connector system 1, as particularly in the Figure 1 , 9a , 9b , 10a , 13a, 13b , 14a, 14b , 16 , 18a , 18b , 21a , 24a, 24b , 25a , 27b , 28a, 28b and 29The figure shown refers to a state in which the coupling section 14 of the flat connector 10 is engaged with the complementary coupling section 54 of the complementary flat connector 50, in particular in a positive-locking manner. The positive lock can be formed essentially parallel to the insertion direction S, S', or in particular, essentially parallel opposite to the insertion direction. In other words, the positive lock can, in particular, block movement essentially parallel to the insertion direction S, S'. Alternatively or additionally, the positive lock can be formed essentially in the vertical direction H.

[0211] This allows, for example, even a coupling not secured by the locking element 5 to advantageously define a predetermined release force to release the coupling between flat connector 10 and complementary flat connector 50, or between coupling section 14 and complementary coupling section 54. In the unsecured coupling, the locking element 5 is not arranged in the locking position. For example, the locking element 5 can be arranged in the non-locking position.

[0212] The non-locking position of the locking element 5, as for example in the Figures 2a , 3a , 3b , 6a , 9a, 9b , 10a, 10b , 11a, 11b , 12a, 12b , 17a , 18a , 18b , 21a , 24a, 24b , 25a, 25b , 26a, 26b and 27aThe figure shows, in particular, a position in which the locking element 5 is arranged at least partially on the receptacle 12.

[0213] In the non-locking position, an actuating section 84 of the locking element 5 can protrude from the receptacle 12, particularly in the opposite direction of insertion S (see especially Figure 1). Figures 3a, 3b , 9a, 9b and 10a for the first embodiment of the flat connector system 1).

[0214] In the non-locking position, a front side of the actuating section 84 of the locking element 5 in the plug-in direction S cannot, in particular, lie against or directly adjoin an upper wall 44 of the flat connector 10.

[0215] It is understood that the non-locking position of the locking element 5 can also be a position of the locking element 5 away from the receptacle 12, in which the locking element 5 does not secure the coupling between flat connector 10 and complementary flat connector 50.

[0216] In the coupled state, one or more interlocking sections 8 can be engaged with one or more restorable interlocking elements 7, in particular in a positive-locking manner. The positive lock can be formed essentially parallel to the insertion direction S, S', or in particular essentially parallel opposite to the insertion direction. Alternatively or additionally, the positive lock can be formed essentially in the vertical direction H.

[0217] The coupled state of the flat connector system 1 is, in particular, a state in which the coupling section 14 and the complementary coupling section 54 are coupled or interlock, or in other words, interlock, and both coupling section 14 and the complementary coupling section 54 exhibit essentially no or no elastic deformation. Possible elastic deformations resulting from contact with the locking element 5, which in particular lead to elastic deformation of the locking element 5, are disregarded here. For this purpose, the coupling section 14 and / or the complementary coupling section 54 can be designed to be comparatively rigid relative to the one or more resilient, and in particular elastically resilient, prongs 85, 86 of the locking element 5.

[0218] As particularly through the Figures 2b , 3a , 3b , 17b , 18a and 18b As shown, the connector housing 11 of the flat connector 10 and the connector housing 51 of the complementary flat connector 50 can be designed in a Poka-Yoke shape relative to each other.

[0219] In particular, the connector housing 11 of the flat connector 10 and the connector housing 51 of the complementary flat connector 50 can be designed to be complementary to each other in such a way that coupling of the flat connector 10 with the complementary flat connector 50 is blocked, or in other words not made possible, when one of the two connector housings 11, 51 is rotated about the plugging direction S, S', in particular by 180°.

[0220] As shown in the figures of the first and second embodiments of the flat connector system 1 with respect to the coupled state, one of the coupling section 14 and the complementary coupling section 54 can have one or more interlocking sections 8, and the other of the coupling section 14 and the complementary coupling section 54 can have one or more restorable interlocking elements 7. A restorable interlocking element 7 can, in particular, be configured to interlock one or more interlocking sections 8 in the coupled state. A restorable section 8 can, in particular, be configured to be interlocked by one or more restorable interlocking elements 7 in the coupled state.A section 8 that can be engaged behind one or more sections 8 can be designed to be comparatively rigid, especially in comparison to a restorable element 7 that can be engaged behind one or more elements 7 that can be engaged behind another.

[0221] The interlocking, or engagement, between coupling section 14 and complementary coupling section 54 includes in particular an engagement essentially perpendicular to the insertion direction S, S'.

[0222] As shown in the figures of the first and second embodiments of the flat connector system 1 with respect to the coupled state, and in particular in the Figure 11a , 13a , 26a and 27b To clarify, the interlocking section 8 and / or the restorable interlocking element 7 can extend, at least section by section, essentially in the vertical direction.

[0223] This advantageously ensures a reliable and secure positive-locking coupling relative to the insertion direction S, S'.

[0224] If the locking element 5 is arranged on the receptacle 12, for example by a step of arranging the locking element 5 on the receptacle 12, which can be carried out in particular as part of a pre-assembly of the flat connector system 1, the locking element 5 can either be arranged in the locking position or in the non-locking position.

[0225] Is the locking element 5 arranged on the receptacle 12 and the flat connector system 1 is in a coupled state, as for example in the Figure 1 , 2a , 13a, 13b , 14a, 14b , 16 , 18a , 18b , 21a , 24a, 24b , 25a , 27b , 28a, 28b and 29As shown, the locking element 5 can be moved between the locking position and the non-locking position, in particular non-destructively.

[0226] Is the locking element 5 arranged on the receptacle 12 and the flat connector system 1 is in the decoupled or uncoupled state, as for example in the Figures 3a, 3b , 6a, 6b , 9a, 9b , 10a , 18a, 18b , 21a, 21b , 24a, 24b and 25aAs shown, the locking element 5 is fixed in the non-locking position. The non-locking position can be characterized, in particular, by one or more positive locking mechanisms parallel to the insertion direction S, S'. In exemplary embodiments, the one or more positive locking mechanisms, in particular of the locking element 5 relative to the receptacle 12, can define a position or arrangement from which the locking element 5 cannot be moved into the locking position without damage.

[0227] This advantageously provides a simple assembly of the flat connector system 1, in which the locking element 5 can be pre-mounted on the receptacle 12, for example, without the locking element 5 affecting the coupling between flat connector 10 and complementary flat connector 50.

[0228] As shown in the figures of the first and second embodiments of the flat connector system 1, the flat connector system 1 in particular has a first flat connector 10 and a second flat connector 50 that is complementary to the first flat connector 10.

[0229] The flat connector 10 and the complementary flat connector 50 can be coupled together. In particular, the flat connector 10 and the complementary flat connector 50 can be electrically connected to each other.

[0230] For example, one of the flat connectors 10 and the complementary flat connector 50 can have one or more electrically conductive conductor sections 30, and the other of the flat connector 10 and the complementary flat connector 50 can have one or more electrically conductive contacts 70. The one or more electrically conductive conductor sections 30 are, in particular, electrically connectable to one or more electrically conductive contacts 70.

[0231] In exemplary embodiments, a contact 70 of one or more electrically conductive contacts 70 can be designed to be restorable, in particular elastically restorable, in order to be able to contact the one or more conductor sections 30, in particular with a preload.

[0232] In exemplary embodiments, a contact 70 of one or more electrically conductive contacts 70 can contact the one or more conductor sections 30 when the flat connector system 10 is in the coupled state, in particular exclusively when the flat connector system 10 is in the coupled state.

[0233] This advantageously ensures a reliable electrically conductive contact between the flat connectors 10, 50.

[0234] A contact 70 of one or more contacts 70 can be connected, in particular by means of a connection section 71, to an electronic component (not shown in the figures), such as a printed circuit board, in particular a PCB. A contact 70 can, for example, be connected to the electronic component by soldering, in particular by reflow soldering. The contact 70 can in particular be designed to be solderable, in particular reflow solderable. Alternatively or additionally, in particular a connector housing 51 of the complementary flat connector 50 can be designed to be solderable, in particular reflow solderable.

[0235] The connector housing 51, as seen particularly in the Figures 7a, 7b , 22a and 22bAs shown by way of example, the connector housing 51 can be, in particular, an injection-molded component. Specifically, the connector housing 51 can comprise or consist of a polymer material. For example, but not limited to, the connector housing 51 can comprise or consist of polyamide (PA), semi-aromatic polyamide, for example PA66, PA6t, and / or PA9T, polyphenylsulfone (PPSE), polyethersulfone (PES), polyetherimide (PEI), polyphenylene sulfide (PPS), liquid crystal polymer (LCP), polyethylene (PE), polyetheretherketone (PEEK), and / or polypropylene (PP).

[0236] Preferably, the connector housing 51 comprises a polymer material that is reflow-solderable, i.e., designed to withstand the temperatures encountered during reflow soldering without maintaining its shape. The connector housing 51 can therefore preferably comprise or consist of polyamide (PA) and / or PEEK.

[0237] In exemplary embodiments, the connector housing 51 can in particular be formed in one piece.

[0238] In alternative embodiments, the connector housing 51 can be formed in more than one part. For example, the connector housing 51 can be a multi-component injection-molded part.

[0239] This allows the connector housing 51 to be designed to be advantageously cost-effective, repeatable, dimensionally stable, and electrically insulating.

[0240] The complementary flat connector 50, or its connector housing 51, has in particular a contact holder 60 on which the majority of contacts 70 are arranged. The contact holder 60 can have a majority of contact receptacles 56.

[0241] The connector housing 51 has, in particular, a number of contact receptacles 56 corresponding to the number of contacts 70 to be accommodated. The connector housing 51 can, in particular, be configured to accommodate 24, 32, 64, or 96 contacts 70 or more. The contact receptacles 56 can, in particular, be configured as segmented hollow forms, especially as hollow forms that are substantially separated from one another in the width direction B.

[0242] The connector housing 51 can have openings, particularly on its rear side in the mating direction S', i.e., on the side facing away from the flat connector 10 during coupling, which open into the contact receptacles 56. The rear side of the connector housing 51 can be closed, particularly apart from the openings and the receptacles designed to receive elements of the flat connector 10. The openings can have a width in the lateral direction B that essentially corresponds to the width in the lateral direction B of the contacts 70. The contacts 70 can be fixed to the connector housing 51, particularly from the rear side in the mounting direction M', especially through the openings that open into the contact receptacles 56.The mounting direction M' of the contacts 70 on the connector housing 51 of the complementary flat connector 50 can essentially correspond to the plugging direction S' of the complementary flat connector 50.

[0243] The contact points 56 can be separated from each other in the lateral direction B, in particular by retaining walls 63. In other words, the contact points 56 can be essentially limited in the lateral direction B by retaining walls 63.

[0244] The retaining walls 63 can have an extent which is in particular essentially parallel to the vertical direction H and / or essentially parallel to the longitudinal direction L.

[0245] The support walls 63 can, in particular, have an extension that is shorter, i.e., in the vertical direction H, projects less far (upwards) than the extension of the contacts 70 arranged between the support walls 63. For example, the support walls 63 can have such an extension that at least or exclusively the curved contact areas 76 of the contacts 70 arranged between the support walls 63 are exposed, i.e., not enclosed by the support walls 63 in the lateral direction B.

[0246] The support walls 63 advantageously facilitate the guidance of the contacts 70 into the connector housing 51 during assembly. In particular, the support walls 63 advantageously guide the contacts 70 into the predetermined contact receptacles 56, even when the assembly direction deviates from the mounting direction M'. Furthermore, the support walls 63 advantageously guide the contacts 70, especially in the case of a restorable deformation of the contacts 70, for example, when coupled with the flat connector 10. The extension of the support walls 63, particularly in the vertical direction H, advantageously protects the contacts 70 while simultaneously ensuring contact with complementary contacts 34 or conductor elements 34 with a predetermined contact force. Thus, reliable electrically conductive contact and a long service life of the contacts 70 can be advantageously ensured.

[0247] The connector housing 51 of the complementary flat connector 50 can, in particular, have a lower wall 52, a front wall 61, an upper wall 65, and / or one or more side walls 67. The one or more walls 52, 61, 65, 67 can advantageously provide protection for the contacts 70, especially both before and during coupling with the flat connector 10.

[0248] The front wall 61 limits the contact surfaces 56, particularly towards the front in the insertion direction S' of the complementary flat connector 50. The front wall 61 can, in particular, be formed integrally with the support walls 63, especially such that the front wall 61 forms a forward section of the support walls 63 in the insertion direction S'.

[0249] The front wall 61 can have a shorter extension, i.e., project less far (upwards) in the vertical direction H, than the extension of the contacts 70 arranged between the support walls 63 or in the contact receptacles 56. For example, the front wall 61 can have such an extension that at least or exclusively the curved contact areas 76 of the contacts 70 arranged between the support walls 63 are exposed, i.e., not enclosed by the front support wall 61 along the insertion direction S'. The front wall 61 can, in particular, have such an extension that at least the curved sections 74 of the contacts 76 along the insertion direction S' are enclosed by the front wall 61, as exemplified by the Figures 8b , 10a , 11a, 11b , 12a, 12b , 14a, 14b , 23b and 29 clarifies.

[0250] The front wall 61 can have a chamfer or insertion ramp at an upper end in the direction of height H and / or at a lower end in the direction of height H.

[0251] The front wall 61 advantageously protects the contacts 70 both before and during coupling, particularly in the direction of travel S, S' or in the longitudinal direction L, and facilitates coupling. This advantageously simplifies assembly and improves the service life of the contacts 70 and the flat connector system 1.

[0252] The connector housing 51 of the complementary flat connector 50 can in particular have a lower wall 52. The lower wall 52 can in particular be formed integrally with the support walls 63 and / or the front wall 61, in particular such that the front wall 61 forms a front section of the lower wall 52 in the insertion direction S'.

[0253] The lower wall 52 can, in particular, form a support for the contacts 70. In other exemplary embodiments, the contacts 70, in particular with the fixing section 73, can be guided in grooves, which can be arranged, in particular, in the supporting walls 63.

[0254] The lower wall 52 advantageously protects the contacts 70 both before and during coupling, particularly in the vertical direction. Furthermore, the lower wall 52 advantageously provides reliable support for the fixing sections 73 of the contacts 70, with the contacts 70 being made reboundable by the conductor elements 34, the support section 78 of the contact 70 bearing against the fixing section 73. This, in turn, advantageously ensures a predetermined contact force and, consequently, a reliable electrically conductive connection with high repeatability.

[0255] The connector housing 51 of the complementary flat connector 50 can, in particular, have an upper wall 65. The upper wall 65 can, in particular, be formed integrally with the support walls 63, the front wall 61, and / or the lower wall. The upper wall 65 can be spaced apart from the lower wall 52 and / or the front wall 61, in particular in the vertical direction H, to allow the insertion and / or reception of a conductor section 30 of the flat connector 10 in the insertion direction S, S'.

[0256] An opening of the connector housing 51 to the front in the plugging direction S', between the upper wall 65 and the front wall 61, or between the upper wall 65 and the support walls 63, in particular substantially in the vertical direction H, is in particular less than about 2 mm, in particular less than about 1.8 mm, in particular about 1.5 mm.

[0257] The contact holder 60 can, in particular, comprise or consist of the support walls 63, the lower wall 52, and / or the front wall 61. In other words, the contact holder 60 comprises or consists, in particular, of those sections of the connector housing 51 which, in the operating state of the complementary connector 50, are directly adjacent to the contacts 70, or, in further terms, are designed to support or hold the contacts 70 in the operating state.

[0258] The contact holder 60 is designed in particular to be (completely) received between the lower connector housing part 20 and the upper connector housing part 40, especially in a coupled state of the flat connector system 1, or to be received during, in particular during, coupling of the flat connector 10 with the complementary flat connector 50.

[0259] This allows for the advantageous provision of efficient contact protection.

[0260] The upper wall 65 can have a chamfer or insertion ramp at an upper end in the vertical direction H and / or at a lower end in the vertical direction H of the front end of the upper wall 65 in the insertion direction S'. The upper wall can extend further in the insertion direction S' or against the longitudinal direction L than the contacts 70 accommodated below it.

[0261] The upper wall 65 advantageously allows the contacts 70 to be protected both before and during coupling, especially in the vertical direction H.

[0262] The connector housing 51 of the complementary flat connector 50 can in particular comprise one or more side walls 67, especially a pair of side walls 67 that are substantially opposite each other in the width direction B. The side wall or walls can in particular be formed integrally with the upper wall 65, the support walls 63, the front wall 61, and / or the lower wall.

[0263] The one or more side walls 67 advantageously enable the contacts 70 to be protected both before and during coupling, especially in the width direction B.

[0264] The connector housing 51 of the complementary flat connector 50 can have openings and receptacles through the walls, in particular only essentially in the insertion direction S, S'.

[0265] A coupling section 54 can be arranged on the connector housing 51. The coupling section 54 can, in particular, be formed integrally with the connector housing 51.

[0266] The coupling section 54 can, without being limited thereto, and as shown by way of example with reference to the figures of the first embodiment of the flat connector system 1, be arranged, for instance, at a front end of the upper wall 65 in the insertion direction S'. The coupling section 54 can, for example, extend substantially in the insertion direction S' or substantially opposite the longitudinal direction L from the connector housing 51, in particular towards the flat connector 10 to be coupled. The coupling section 54 can, in particular, extend further in the insertion direction S' or further opposite the longitudinal direction L than the remaining connector housing 51.

[0267] As further shown by way of example with reference to the figures of the second embodiment of the flat connector system 1, the coupling section 54 can, without being limited to, be arranged on the lower wall 52, for example in the longitudinal direction L in the middle of the lower wall 52.

[0268] A release element 55 can be arranged on the connector housing 51. The release element 55 can, in particular, be formed integrally with the connector housing 51.

[0269] The release element 55 can, without being limited thereto, and as shown by way of example with reference to the figures of the first embodiment of the flat connector system 1, be arranged, for example, at a front end of the upper wall 65 in the insertion direction S'. The release element 55 can, for example, extend substantially in the insertion direction S' or substantially opposite the longitudinal direction L from the connector housing 51, in particular towards the flat connector 10 to be coupled. The release element 55 can, in particular, extend further in the insertion direction S' or further opposite the longitudinal direction L than the remaining connector housing 51. In exemplary embodiments, the release element 55 can extend from the connector housing 51 approximately as far as the coupling section 54.

[0270] As further shown by way of example with reference to the figures of the second embodiment of the flat connector system 1, the release element 55 can, without being limited to, be arranged on the upper wall 65, for example in the longitudinal direction L in the middle of the upper wall 65.

[0271] The connector housing 51 of the complementary flat connector 50 can be configured, as shown by way of example in the figures of the first embodiment of the flat connector system 1, to accommodate all contacts 70 with a substantially constant distance between the contacts 70 in the width direction B. This advantageously allows for the provision of a complementary flat connector 50 that is not only flat, but also, and especially, narrow in the width direction B.

[0272] As further shown by way of example with reference to the figures of the second embodiment of the flat connector system 1, the connector housing 51 of the complementary flat connector 50 can be designed to accommodate two or more groups of contacts 70, wherein the contacts 70 of the respective group have a different distance to each other in the width direction B than the groups to each other.

[0273] In other words, in exemplary embodiments, the connector housing 51 can have, in the width direction B, a first group of contact receptacles 56, the coupling section 54, and a second group of contact receptacles 56, arranged successively in this order. The contacts 70 can, in particular, be arranged in the respective contact receptacles 56.

[0274] In other words, and as shown by way of example with reference to the figures of the second embodiment of the flat connector system 1, the coupling section 54 of the complementary flat connector 50 can be arranged, in particular essentially in the width direction B, between a first group of contacts 70 or a first group of contact receptacles 56 and a second group of contacts 70 or a second group of contact receptacles 56.

[0275] This allows the complementary flat connector 50 and the flat connector system 1 to be advantageously designed to be particularly flat. This, in turn, advantageously improves the integration of the flat connector system 1 into systems with limited installation space, especially with limited installation space in the vertical direction H, such as in motor vehicles, for example, cars.

[0276] In exemplary embodiments, the connector housing 51 of the complementary flat connector 50 can have one or more fixing sections 58. The one or more fixing sections 58 can, for example, be designed to receive one or more fixing means 59, in particular to provide a positive locking connection for one or more fixing means 59. The one or more fixing sections 58 can be arranged on an outer surface of the connector housing 51 in the width direction B, in particular arranged in pairs essentially opposite each other in the width direction B on the connector housing 51.

[0277] The fixing sections 58 advantageously improve the integration of the complementary flat connector 50 and the flat connector system 1, and furthermore, in particular, the pre-assembly capability of the complementary flat connector 50.

[0278] As shown by the figures relating to the first and second embodiments of the flat connector system 1, and in particular by the Figures 4a, 4b , 5a, 5b , 19a, 19b , 20a and 20b To clarify, the flat connector 10, which has the conductor section 30, can in particular be designed in multiple parts, or at least in two parts. In other words, the connector housing 11 of the flat connector 10, which has the conductor section 30, can in particular be designed in multiple parts, or at least in two parts. The connector housing 11 is therefore in particular designed as a two-part connector housing 11.

[0279] The flat connector 10, and in particular its connector housing 11, can in particular comprise or consist of a lower connector housing part 20 and an upper connector housing part 40.

[0280] The lower and upper connector housing parts 20, 40 can at least partially comprise a separation line or a separation plane which extends substantially over a surface, in particular complementary to the conductor section 30.

[0281] This allows the conductor section 30 to be advantageously arranged between the lower connector housing part 20 and the upper connector housing part 40. For example, the conductor section 30 can be arranged, at least partially, in a sandwich-like manner between the lower connector housing part 20 and the upper connector housing part 40.

[0282] The flat connector 10 can be manufactured, in particular, by stepwise stacking. First, the conductor section 30 can be arranged, or in other words, placed, on or in one of the lower connector housing parts 20 and the upper connector housing part 40. Then, the other of the lower connector housing parts 20 and the upper connector housing part 40 can be arranged, or placed, on or in the one of the lower connector housing parts 20 and the upper connector housing part 40 to which the conductor section 30 is attached. Afterward, the lower connector housing part 20 and the upper connector housing part 40 can be fastened relative to each other.

[0283] The arrangement or placement of the stepwise stacking described above can be carried out, in particular, substantially parallel to the vertical direction H. In exemplary embodiments, the arrangement or placement of the stepwise stacking described above can be carried out, in particular, substantially in the assembly direction M. The assembly direction M shown in the figures exemplifies the sequence in which the upper connector housing part 40 is arranged on or into the lower connector housing part 20, or in other words, placed. It is understood that the flat connector 10 can also be manufactured using an assembly direction that is substantially opposite to the assembly direction M shown in the figures, in which, i.e., the lower connector housing part 20 is arranged on or into the upper connector housing part 40, or in other words, placed.

[0284] By arranging or laying the conductor section 30 essentially parallel to the vertical direction H, buckling or deformation of the conductor section 30 and / or the flexible flat conductor 110, which is connected to the conductor section 30, can be advantageously avoided.

[0285] Traditionally, the conductor section and / or the flexible flat conductor connected to it is inserted lengthwise into a connector housing and then secured to the housing by protruding fixing sections, for example, by soldering, welding, screwing, or clamping. While this method securely mounts the conductor section and flexible flat conductor to the connector housing, a portion of the conductor section and / or the flexible flat conductor typically kinks during insertion. This can lead to damage to the conductor section and / or the flexible flat conductor, which is often not readily apparent and frequently only manifests itself in a relatively short lifespan of the flat connector system.

[0286] In the present manufacturing process of the flat connector 10, arranging or laying the conductor section 30 and the flexible flat conductor 110 essentially parallel to the vertical direction H can prevent kinking. This, in turn, advantageously improves the service life of the conductor section 30 and / or the flexible flat conductor 110, and consequently, the service life of the flat connector system 1.

[0287] The conductor section 30 can, in particular, comprise one or more conductor elements 34 and / or a section supporting the one or more conductor elements 34. The conductor elements 34 are, in particular, electrically conductive. The conductor elements 34 can comprise or consist of exposed conductor elements 34 of the flexible flat conductor 110.

[0288] The flexible flat conductor 110 can in particular comprise or consist of a flat ribbon or a flexible printed circuit board.

[0289] In preferred embodiments, the distance from the center of the outermost conductor element 34 in the width direction B to the edge of the conductor section 30 adjacent in the width direction B can be in the range of approximately 0.7 mm to approximately 1.2 mm. In particular, the distance from the center of the outermost conductor element 34 in the width direction B to the edge of the conductor section 30 adjacent in the width direction B can be at least approximately 0.9 mm or at least approximately 1.0 mm, and in particular approximately 1 mm.

[0290] This makes the conductor section 30 advantageously compatible with both a flat ribbon and a flexible printed circuit board, and furthermore advantageously enables the modular production of the flat connector system 1.

[0291] The lower connector housing part 20 has, in particular, a main body 23. The main body 23 has a main extent which is essentially parallel to the longitudinal direction L and the lateral direction B.

[0292] This allows the main body 23 to be advantageously in contact with the conductor section 30 and / or with the flat flexible conductor 110 over a flat area.

[0293] As particularly through the Figures 4a, 4b , 19a and 19b As illustrated in the first and second embodiments of the flat connector system 1, the main body 23 can, in particular, extend in steps. The main body 23 can, in particular, have an upper step in the vertical direction H and at least one lower step in the vertical direction H, or, for example, have exclusively the upper step and the lower step.

[0294] The upper stage in the vertical direction H has, in particular, a main extent that is essentially parallel to the longitudinal direction L and the lateral direction B. Additionally or alternatively, at least one, or exclusively the further lower stage in the vertical direction H, may have a main extent that is essentially parallel to the longitudinal and lateral directions. The upper and lower stages may, in particular, be essentially parallel to each other.

[0295] The upper step of the main body 23 in the vertical direction H can, in particular, be a step of the main body 23 facing the conductor section 30 and / or the flexible flat conductor 110. The upper step of the main body 23 in the vertical direction H can, in particular when the flat connector 10 is assembled or even during the manufacture of the flat connector 10, provide a support for the conductor section 30 and / or the flexible flat conductor 110.

[0296] The lower step of the main body 23 in the vertical direction H can, in particular, be a step of the main body 23 facing away from the conductor section 30 and / or the flexible flat conductor 110. The lower step of the main body 23 in the vertical direction H can, in particular in the assembled state of the flat connector 10 or even during the manufacture of the flat connector 10, provide a distance from the conductor section 30 and / or the flexible flat conductor 110, in particular a distance substantially in the vertical direction H.

[0297] The lower step in the vertical direction H can in particular comprise or consist of a lower wall 24 of the lower connector housing part 20.

[0298] The lower wall 24 extends, in the assembled state of the flat connector 10, in particular with a distance in the vertical direction H from the conductor section 30 and / or the flexible flat conductor 110.

[0299] The lower wall 24 has, in particular, a main extent which is parallel to the longitudinal direction L and the lateral direction B. The lower wall 24 can, in particular, extend at, or in other words, be arranged at, a lower end in the vertical direction H of the lower connector housing part 20.

[0300] The lower wall 24 can extend further in the longitudinal direction L or in the plug-in direction S than the conductor elements 34 arranged on the flat connector 10.

[0301] The lower wall 24 advantageously provides protection for the conductor section 30 and / or the flexible flat conductor 110, particularly in the vertical direction H.

[0302] The lower wall 24 may, in particular, have a chamfer or insertion ramp at a distal end, or in other words, at a front end in the insertion direction S of the flat connector 10. The chamfer or insertion ramp may, in particular, be formed on a side of the lower wall 24 that is upper in the vertical direction H.

[0303] This allows the lower wall 24 of the lower connector housing part 20 to be advantageously easily mounted in the plug-in direction S, S' with the connector housing 51 of the complementary flat connector 50, and in particular easily adjacent to the lower wall 52 of the complementary flat connector 50.

[0304] The lower connector housing part 20 has, in particular, one or more fastening means 26 for fastening the lower connector housing part 20 to the upper connector housing part 40. The upper connector housing part 40 may have one or more fastening means 46 for fastening the lower connector housing part 20 to the upper connector housing part 40, which are, in particular, complementary to the one or more fastening means 26 of the lower connector housing part 20.

[0305] As exemplified particularly in the Figures 4a, 4b , 19a and 19b As shown, the fastening element 26 of the lower connector housing part 26 has, by way of example, a projection, in particular an arm with a projection. The fastening element 26 can include or consist of a restorable, in particular elastically restorable, clip. As by way of example, in particular in the Figures 5a, 5b , 20a and 20bAs shown, the fastening means 46 of the upper connector housing part 40 has or can consist of a fastening receptacle 46. In In further exemplary embodiments, the fastening means 46 of the upper connector housing part 40 can comprise or consist of a projection and, in particular, a clip, and the fastening means 26 of the lower connector housing part 20 can comprise or consist of a receptacle. In still further exemplary embodiments, both the lower and the upper connector housing parts 20, 40 can comprise either a projection and, in particular, a clip, or a receptacle as fastening means.

[0306] It is understood that in other exemplary embodiments, fasteners other than those shown in the figures may be used, in particular to connect the lower connector housing part 20 to the upper connector housing part 40. Other exemplary fasteners of the lower connector housing part 20 and / or the upper connector housing part 40 may, but are not limited to, include pins, dowel pins, openings, slots, T-nuts, fir-tree clips, and / or screws.

[0307] For example, the lower connector housing part 20 can have fastening means 26 that are essentially opposite each other in the width direction B. The fastening means 26 can, in particular, each be arranged or formed at one end in the width direction B of the lower connector housing part 20.

[0308] The fastening element 26 can, in particular, comprise an elastically resilient clip arm extending substantially in the vertical direction H. The clip arm can have a projection, which can, in particular, extend substantially in the horizontal direction B from the clip arm. On a side of the clip arm opposite the projection, the clip arm can, in particular, have one or more grooves, which preferably extend substantially along the vertical direction H. In a cross-section of the clip arm, with a sectioning plane spanning substantially in the longitudinal and horizontal directions, the clip arm can be formed, at least partially, approximately W-shaped.

[0309] This allows the clip arm to be advantageously stiffened in the lateral direction B. Furthermore, by avoiding material accumulations in the cross-section of the clip arm, the clip arm can be advantageously formed precisely and, in particular, essentially without distortion, for example by injection molding. The clip arm of the fastening element 26 can, in particular, be manufactured in one piece with the lower connector housing part 20, for example by injection molding.

[0310] This advantageously ensures repeatable assembly of the flat connector 10, and in particular simplifies the assembly of the multi-piece flat connector 10.

[0311] In preferred embodiments, the lower connector housing part 20, adjacent to the fastening means 26, can have a recess 22. As exemplified by the Figures 4a, 4b , 19a and 19bAs shown, the recess 22 can, in particular, adjoin the fastening element 26 in the direction in which the projection of the clip arm extends from the clip arm. In other words, as shown by the Figures 4a, 4b , 19a and 19b shown, the recess 22 is adjacent to the fastening means 26 in the direction in which the projection of the clip arm extends from the clip arm.

[0312] In the figures, the clip arm is shown by way of example with a projection which extends substantially parallel to the width direction B inwards of the connector housing part 20, so that the recess 22 is arranged or formed on the connector housing part 20, in particular parallel to the width direction B and inwards of the connector housing part 20.

[0313] The recess 22 can have approximately the same extent in the longitudinal direction L as the fastening means 26, or preferably be larger than the extent of the fastening means 26 in the longitudinal direction L.

[0314] This advantageously improves the flexibility of the fastening element 26 of the lower connector housing part 20. Furthermore, fatigue or damage at the root of the fastening element 26, in other words at a proximal end of the fastening element 26, can be advantageously prevented or reduced, thereby advantageously improving the service life of the flat connector 10 and the flat connector system 1.

[0315] The one or more fastening means 26 can be arranged or formed in particular on the upper step of the lower connector housing 20 in the height direction H.

[0316] This advantageously provides a particularly secure fastening of the lower connector housing 20 to the upper connector housing 40 in an area where the conductor section 30 and / or the flat flexible conductor 110 is arranged between the lower and upper connector housings 20, 40. Furthermore, this provides a particularly secure and reliable clamping, especially a friction-fit clamping, of the conductor section 30 and / or the flat flexible conductor 110 between the lower and upper connector housings 20, 40, which in turn advantageously ensures good connection reliability for an electrically conductive connection of the flat connector system 1.

[0317] Additionally or alternatively, the one or more fastening means 26, which are arranged or formed in particular on the upper step in the height direction H of the lower connector housing, can advantageously provide a positive locking essentially against the insertion direction S with a fixing section 32 of the conductor section 30 and / or the flat flexible conductor 110.

[0318] This also advantageously provides a secure, in particular loss-proof, fastening of the conductor section 30 and / or the flat flexible conductor 110 to the lower connector housing 20, as well as, for example, between the lower and the upper connector housing 20, 40.

[0319] As exemplified in the Figures 4a and 19aAs shown, the step of the connector housing 11, i.e., the upper connector housing part 40 or the lower connector housing part 20, which is spaced apart from the conductor section 30, can have one or more first stiffening ribs 25, and in particular on a side facing the conductor section 30.

[0320] In particular, the lower connector housing part 20, especially on its lower wall 24, may have one or more first stiffening ribs 25.

[0321] The one or more first stiffening ribs 25 can have a main extent which is essentially parallel to the longitudinal direction L and to the vertical direction H.

[0322] The one or more first stiffening ribs 25 can be arranged, in particular, at an interface, or in other words, at a transition, between the upper step (in the vertical direction H) and the lower step (in the vertical direction H) of the lower connector housing part 20. The one or more first stiffening ribs 25 can, in particular, extend along an upper side (in the vertical direction H) of the lower step or the lower wall 24.

[0323] The one or more first stiffening ribs 25 can, in particular, extend only along a portion of the lower wall 24 of the lower connector housing part 20. In other words, the one or more first stiffening ribs 25 adjacent to or extending from the upper step in the vertical direction H, in particular, can extend only partially in the longitudinal direction L along the lower wall 24.

[0324] The first stiffening ribs 25 advantageously prevent material buildup in the lower connector housing part 20. Furthermore, stiffening can be provided, in particular supporting the lower wall 24, which improves the protection of the conductor section 30 and / or the flat flexible conductor 110, especially from below in the vertical direction H, while coupling with the lower wall 52 of the complementary flat connector 50 is not impaired.

[0325] Alternatively or additionally, and as exemplified in the Figures 6b and 21b As shown, the lower connector housing part 20 can have one or more second stiffening ribs 27. The one or more second stiffening ribs 27 can have a main extent which is substantially parallel to the longitudinal direction L and the vertical direction H.

[0326] The one or more second stiffening ribs 27 can be arranged, in particular, at an interface, or in other words, at a transition, between the upper step (in the vertical direction H) and the lower step (in the vertical direction H) of the lower connector housing part 20, but especially substantially opposite the first one or more stiffening ribs 25. The one or more second stiffening ribs 27 can, in particular, extend along a lower side (in the vertical direction H) of the upper step.

[0327] The one or more second stiffening ribs 27 can extend, in particular, along the lower side (in the vertical direction H) of the upper step (in the vertical direction) of the lower connector housing part 20. In particular, the one or more second stiffening ribs 27 can extend substantially the entire lengthwise L along the upper step (in the vertical direction).

[0328] The second stiffening ribs 27 advantageously prevent material buildup in the lower connector housing part 20. Furthermore, they provide stiffening, particularly supporting the lower wall 24 and the upper step in the vertical direction H, which improves the protection of the conductor section 30 and / or the flat flexible conductor 110, especially from below in the vertical direction H.

[0329] As by comparing the Figure 4a concerning the first embodiment of the flat connector system 1 with the Figure 19a Regarding the second embodiment of the flat connector system 1, the lower connector housing 20 can be designed differently depending on the embodiment.

[0330] As shown by way of example in the figures of the first embodiment of the flat connector system 1, the lower connector housing 20 can in particular be designed with a substantially continuous upper step in the height direction H.

[0331] This advantageously enables easy assembly with the ladder section 30 and / or the flat flexible conductor 110, and in particular provides a flat supporting surface for the ladder section 30 and / or the flat flexible conductor 110.

[0332] As shown by way of example in the figures of the second embodiment of the flat connector system 1, the lower connector housing 20 can in particular be designed with an upper step that is substantially discontinuous in the vertical direction H. For example, the upper step in the vertical direction H can have at least a first section and a second section which are interrupted at least partially along the extent of the lower connector housing 20 in the horizontal direction B. For example, the first and the second section of the upper step in the vertical direction H can be interrupted at least partially by a lower step in the vertical direction H. The lower step in the vertical direction H can in particular be the lower step which is (approximately) at the same level in the vertical direction H as the lower wall 24 of the lower connector housing part 20.

[0333] In other words, the upper stage of the lower connector housing part 20 in the vertical direction H can, along the extension of the connector housing part 20 in the horizontal direction B, in particular include a break in the vertical direction H. The break in the vertical direction H can, in particular, be at a lower level in the vertical direction than the upper stage in the vertical direction H. The break in the vertical direction H can, in particular, be located or formed centrally in the horizontal direction B on the upper stage in the vertical direction H.

[0334] As further shown with reference to the figures of the second embodiment of the flat connector system 1, the lower connector housing 20 can be designed, in particular, with a lower step or a lower wall 24 that is interrupted at least partially in the vertical direction H. For example, the lower wall 24 can have at least a first section and a second section, which are interrupted at least partially along the width direction B of the lower connector housing 20. For example, the first and the second section of the lower wall 24 can be interrupted at least partially, for example, by an opening. The opening or interruption of the lower wall 24 can be arranged or formed, in particular, at a front end of the lower connector housing 20 in the insertion direction S of the flat connector 10.The interruption of the lower wall 24 can be arranged or formed, in particular, centrally in the width direction B on the lower wall 24.

[0335] The lower connector housing part 20, as shown by way of example in the figures of the second embodiment of the flat connector system 1, and as shown in particular by the Figures 19a , 24a , 24b and 25a as illustrated, made possible by the upper step formed in the width direction B in sections and in the height direction H, and / or by the lower wall 24 formed in sections, advantageously accommodates the coupling section 14, which is arranged or formed on the upper connector housing part 40, at least in sections.

[0336] The lower connector housing part 20 can in particular be formed in one piece.

[0337] This advantageously makes it possible to provide a particularly flat and space-saving flat connector system 1, which is particularly dimensionally stable and can be manufactured with high repeatability, and is particularly suitable for use in motor vehicles, such as cars.

[0338] The upper connector housing part 40 of the flat connector 10, as shown in particular in the Figures 5a, 5b , 20a and 20b The figure shown in particular has a coupling section 14 which is designed for coupling with a complementary coupling section 54 of the complementary flat connector 50 of the connector system 1, as shown in the further figures.

[0339] The positive locking of the coupling section 14 with the complementary coupling section 54, which is generally designed to be detachable, can be designed as a non-detachable, and in particular non-destructively detachable, positive locking, in particular by means of a securing position of the locking element 5.

[0340] Furthermore, the positive locking of the coupling section 14 with the complementary coupling section 54, which is generally designed to be releasable, can be designed as a releasable, and in particular non-destructively releasable, positive locking, in particular by means of a non-locking position of the locking element 5.

[0341] One of the coupling section 14 and the complementary coupling section 54 can be essentially rigid with respect to the coupling part. The other of the coupling section 14 and the complementary coupling section 54 can be essentially resilient, in particular elastically resilient, with respect to the part complementary to the coupling part. In other words, the coupling section 14 and the complementary coupling section 54 can be designed such that, during coupling, essentially only one of the coupling section 14 and the complementary coupling section 54 is deformed or is deformed in a resilient manner.

[0342] At least one of the coupling section 14 and the complementary coupling section 54 can have one or more interlocking sections 8. Furthermore, at least one of the coupling section 14 and the complementary coupling section 54 can have one or more resilient interlocking elements 7, in particular one or more elastically resilient interlocking elements 7. A resilient interlocking element 7 of the one or more resilient interlocking elements 7 is in particular designed to be complementary to one or more of the one or more interlocking sections 8. For example, a resilient interlocking element 7 and a complementary interlocking section 8 each have a projection in order to form a positive fit, in particular in the insertion direction S, S', in the coupled state of the flat connector system 1.

[0343] As exemplified by the figures of the first embodiment of the flat connector system 1, the flat connector 10 can, for example, have one or more substantially rigid interlocking sections 8, and the complementary flat connector 50 can accordingly have one or more substantially elastically restoring interlocking elements 7 which can be coupled to the interlocking section(s) 8.

[0344] As exemplified by the figures of the second embodiment of the flat connector system 1, the flat connector 10 can, for example, have one or more substantially elastically restorable interlocking elements 7, and the complementary flat connector 50 can accordingly have one or more substantially rigid interlocking sections 8 which can be coupled to the restorable interlocking elements 7.

[0345] This advantageously allows for a repeatable assembly process.

[0346] At least one of the flat connector 10 and the complementary flat connector 50 can have a receptacle 12 for the locking element 5, to secure the coupled state of the flat connector system 1.

[0347] As shown by way of example in the figures of the first and second embodiments of the flat connector system 1, the receptacle 12 for the locking element 5 can be arranged in particular in the area of ​​the coupling section 14 or on the coupling section 14.

[0348] The receptacle 12 is formed in particular by a region of the upper connector housing 40, and in particular by a region of the coupling section 14. The receptacle 12 has, in particular, a guide for the movement of the locking element 5 between a non-locking position and a locking position. The guide for movement can, in particular, be a translational guide, i.e., a guide which essentially only permits translational movement of the locking element 5 between the locking position and the non-locking position. For this purpose, the guide can, for example, form a positive locking connection transverse to the translational direction of movement of the locking element 5.

[0349] The receptacle 12 can in particular be formed in one piece with the upper connector housing part 40.

[0350] The receptacle 12 has in particular one or more latches 45 which, in a non-coupled state of the flat connector system 1, i.e. in a state in which the coupling section 14 and the complementary coupling section 54 are not coupled to each other, can engage with one or more latch projections 82 of the locking element 5, in particular in a form-fitting manner.

[0351] The receptacle 12 can be rigidly designed. In particular, the receptacle 12 can be so rigidly designed that the receptacle 12: - when the locking element 5 is arranged on the receptacle 12, - when the flat connector 10 is coupled with the complementary flat connector 50, in particular in a state in which the locking element 5 is arranged on the receptacle 12, and / or - when the locking element 5 is brought into the locking state, i.e. when the flat connector 10 and the complementary flat connector 50 are already coupled together, not deformed.

[0352] This allows the flat connector 10 and the complementary flat connector 50 to be advantageously designed to be rigid and durable, while, for example, the locking element 5 can be designed as an easily replaceable element.

[0353] The one or more traps 45 can be designed, in particular, as openings or structures extending essentially in the lateral direction B and / or in the vertical direction H. The one or more traps 45 can thus provide an engagement or structure for one or more trap projections 82 of the safety element 5, which also extend essentially in the lateral direction B and / or in the vertical direction H.

[0354] In the coupled state of the flat connector system 1, i.e. in a state in which the coupling section 14 and the complementary coupling section 54 are coupled together, in particular positively coupled together, one or more of the release elements 55 is designed to extend towards the one or more traps 45 in such a way that the one or more trap projections 82 do not engage with the one or more traps 45.

[0355] A release element 55 of one or more release elements 55 is in particular arranged or formed on the one of the coupling section 14 and the complementary coupling section 54 which does not have the receptacle 12.

[0356] The one or more release elements 55 can, for example, extend towards the one or more traps 45 in such a way that the one or more trap projections 82 cannot enter the one or more traps 45, and / or in such a way that an engagement of the one or more trap projections 82 with the one or more traps 45 is resolved.

[0357] Additionally or alternatively, the one or more release elements 55 can extend towards the one or more latches 45 in such a way that the locking element 5, which is fixed in the non-locking position, is or becomes deformed in a restorable manner. In particular, a section of the locking element 5 can be or become deformed in a restorable, especially elastic, manner, on which one or more of the latch projections 82 are arranged.

[0358] In exemplary embodiments, the one or more release elements 55 can be configured in the coupled state, elastically deforming a prong 86 of the locking element 5 to arrange themselves between a section of the receptacle 12 and a section of the prong 86.

[0359] In the coupled state of the flat connector system 1, in particular by means of the arrangement of one or more release elements 55 in the coupled state, the locking element 5 is designed to be transferable from a non-locking position to a locking position. In particular, the locking element 5 is designed, in the coupled state and by means of the arrangement of one or more release elements 55, to be transferable between a non-locking position and the locking position of the locking element 5, and in particular to be transferable non-destructively and reversibly between a non-locking position and the locking position of the locking element 5. In other words, in the coupled state, the locking element 5 is no longer fixed in the non-locking position.

[0360] The complementary design of the locking element 5 and the coupling sections 14, 54 of the flat connector 10 and the complementary flat connector 50 advantageously ensures that the locking element 5 is fixed in the non-locking position in the decoupled state and can only be moved into the locking position in the coupled state.

[0361] The receptacle 12 can have one or more retaining devices 48. One retaining device 48 of the one or more retaining devices 48 is specifically designed to engage with a retainer 88 of one or more retainers 88 of the safety element 5. As can be seen in particular by Fig. 5a As illustrated, the retaining structures 48 can, for example, be designed as walkways or columns of the inlet 12, which extend, for example, at least in sections, essentially in the vertical direction H. As shown in particular by Fig. 20aTo clarify, the retaining structures 48 can, for example, be designed as projections of the receptacle 12, which extend, for example, at least in sections, essentially in the lateral direction B. The one or more retaining structures 48 can, for example, have a front or a recess against which one or more retaining elements 88 of the safety element 5 can abut or engage. The front can, for example, extend essentially parallel to the vertical direction H and / or in the lateral direction. The recess can, in particular, be a recess essentially in the vertical direction H or in the lateral direction B.

[0362] A retaining element 88 of the one or more retaining elements 88 of the locking element 5 can, in particular, be designed as a projection that extends substantially in the vertical direction H and / or in the horizontal direction B from the locking element 5. The retaining element 88 can, in particular, extend in a direction that does not correspond to the direction in which the one or more trap projections 45 extend.

[0363] A retaining element 48 of one or more retaining elements 48 can form a positive connection, for example a stop or engagement, with one or more of the retaining elements 88, which prevents the locking element 5 from being released from the receptacle 12, in particular substantially against the insertion direction S. The retaining elements 48 can, for example, be designed as webs or columns of the receptacle 12.

[0364] The one or more retaining devices 48, in conjunction with the retainer(s) 88, together with the one or more latches 45, in conjunction with the latch projections 82, can advantageously ensure that the locking element 5 is fixed to the receptacle in the non-locking position. This allows the locking element 5 to be advantageously pre-mounted on the receptacle 12, and simplifies the assembly of the flat connector system 1.

[0365] The receptacle 12 can advantageously provide a positive-locking receptacle for the locking element 5, in which the locking element 5 is positively locked, in particular in the decoupled state of the flat connector system 1. The locking element 5 can, in particular, be positively locked and secured in the receptacle 12 at least partially, especially in the non-locking position.

[0366] The upper connector housing part 40 has mounting receptacles 46 that are complementary to the mounting means 26 of the lower connector housing part 20. The mounting receptacles 46 can be, as shown in the Figures 5a, 5b , 20a and 20b This is illustrated by way of example, in particular as a groove or recess on the upper connector housing part 40, for example as a groove or recess having a recess. The mounting receptacles 46 can in particular be arranged opposite each other on the upper connector housing part 40, essentially in the width direction B. The mounting receptacles 46 can in particular be arranged or formed at ends of the upper connector housing part 40 that are essentially opposite each other in the width direction B.

[0367] The mounting receptacles 46 can be arranged or formed in particular on a rear section of the upper connector housing part 40 in the plugging direction S.

[0368] This advantageously provides a fastening of the lower connector housing part 20 to the upper connector housing part 40, which does not impair the coupling of the flat connector 10 with the complementary flat connector 50, and in particular does not come loose when a load is applied in or against the plugging direction S, especially without damage.

[0369] The mounting receptacles 46, particularly in conjunction with the fastening means 26, which can also be arranged or formed on the other side of the lower and upper connector housing parts 20, 40, enable an advantageously secure, simple, and protective sandwich-like mounting of the conductor section 30 and / or the flexible flat conductor 110 between the lower and upper connector housing parts 20, 40. In particular, clamping can be advantageously improved in an area where the lower connector housing part 20, the conductor section 30 and / or the flexible flat conductor 110, and the upper connector housing part 40, are directly adjacent to one another when the flat connector 10 is mounted.The elements mentioned can be sandwiched together in the following order: lower connector housing part 20, conductor section 30 and / or flexible flat conductor 110, and upper connector housing part 40.

[0370] The conductor section 30 and / or the flexible flat conductor 110 can be received at least in a form-fitting manner between the lower and upper connector housing parts 20, 40, in particular in such a way that the conductor section 30 and / or the flexible flat conductor 110 cannot be pulled out substantially in and / or against the longitudinal direction or substantially in and / or against the insertion direction S of the flat connector 10.

[0371] Alternatively or additionally, the conductor section 30 and / or the flexible flat conductor 110 can be materially bonded to the lower and / or the upper connector housing part 20, 40, for example by means of an adhesive.

[0372] Alternatively or additionally, the conductor section 30 and / or the flexible flat conductor 110 can be frictionally connected to the lower and / or the upper connector housing part 20, 40, for example by clamping the conductor section 30 and / or the flexible flat conductor 110 between the lower connector housing part 20 and the upper connector housing part 40.

[0373] In In exemplary embodiments, the fastening means 26 with the fastening receptacles 46 can provide a fastening pre-tensioned in the vertical direction H.

[0374] This advantageously improves, in particular, a friction-fit connection between the conductor section 30 and / or the flexible flat conductor 110 and the lower and upper connector housing parts 20, 40. The engagement between the retaining elements 48 can be designed, for example, as webs or columns of the receptacle 12.

[0375] As particularly through the Figures 4a to 6bAs illustrated in Figures 19a to 21b, the upper connector housing part 40 can have a side wall 42, in particular an angled side wall 42, at each of its ends opposite each other in the width direction B. The respective side wall 42 is designed in such a way that it provides outward protection in the width direction B for the conductor section 30 and / or the flexible flat conductor 110. The respective angled side wall 42 is angled in such a way that it is angled inwards in the width direction B at a front end of the side wall 42 in the longitudinal direction L or in the insertion direction S.

[0376] The side wall 42 can extend downwards, in particular from an upper wall 44 of the connector housing 11, essentially along the vertical direction H. The side wall 42 can, in particular, be configured to at least partially enclose the lower connector housing part 20 in the lateral direction B.

[0377] The side wall 42 advantageously improves the protection of the conductor section 30 and / or the flexible flat conductor 110 in the lateral direction B. Furthermore, the side wall 42, particularly through its angled section, advantageously facilitates a positive-locking connection of the conductor section 30 and / or the flexible flat conductor 110 to the connector housing 11, as well as protecting the conductor section 30 and / or the flexible flat conductor 110 from the front in the insertion direction S and in the longitudinal direction L. The side wall 42, particularly through its angled section, also facilitates assembly with the lower connector housing part 20, for example, by providing a guide for placing the upper connector housing part 40 onto the lower connector housing part 20, and vice versa.

[0378] The upper connector housing 40 can in particular have one or more guide elements 43, in particular one or more elastically restorable guide elements 43.

[0379] The connector housing 40 can, in particular, have at least one guide element 43 at each of its ends opposite each other in the width direction B.

[0380] A guide element 43 of one or more guide elements 43 can, in particular, have a main extent substantially in the longitudinal direction L or in the insertion direction S. A guide element 43 of one or more guide elements 43 can, in particular, have a projection at a forward end in the longitudinal direction L or in the insertion direction S, which projects, in particular, substantially perpendicular to the longitudinal direction L or to the insertion direction S.

[0381] The one or more guide elements 43 are designed in particular to contact the complementary flat connector 50 when the flat connector 10 is coupled with the complementary flat connector 50, in particular to contact the complementary flat connector 50 under an elastically restorable deformation of the one or more guide elements 43.

[0382] The complementary flat connector 50 or the connector housing 51 of the complementary flat connector 50 can, for example, each have a receptacle, in particular a receptacle groove and / or a guide receptacle 53 for at least one of the one or more guide elements 43. The receptacle, in particular the receptacle groove and / or guide receptacle 53 of the complementary flat connector 50 can, in particular, be arranged or formed outside the contact receptacles 56 in the lateral direction B.

[0383] The system or system groove and / or guide receptacle 53 can be used as described in the Figures 7b ,22a and 25b shown by way of example, in particular having a projection and / or recess with which a guide element 43 of one or more guide elements 43 can engage, in particular in a form-fitting manner.

[0384] The one or more mounting surfaces or mounting grooves and / or guide receptacles 53 of the connector housing 51 of the complementary flat connector 50, together with the one or more guide elements 43, can form, in particular, a first pre-tensioning contact of the flat connector 10 with the complementary flat connector 50 during insertion or coupling along the insertion direction S, S'. This first pre-tensioning contact naturally refers to a mutually complementary orientation of the flat connector 10 relative to the complementary flat connector 50, in which the flat connector 10 and the complementary flat connector 50 can be inserted or coupled to provide an electrically conductive connection, in the sense of a typical operating condition of a flat connector system 1.

[0385] The one or more guide elements 43 can each be arranged or formed, in particular, at a front end of the side wall 42 in the longitudinal direction L or in the insertion direction S.

[0386] The guide elements 43 thus advantageously simplify the assembly of the flat connector system 1. Furthermore, the guide elements 43 also provide, in particular integrally, protection for the conductor section 30 and / or the flexible flat conductor 110 in the lateral direction B, especially on both sides in the lateral direction B.

[0387] As particularly through the Figures 5b and 20bTo illustrate by way of example, the upper connector housing part 40 can have one or more collars 49, particularly on an underside of the upper wall 44 in the vertical direction H. The collar 49 of the one or more collars 49 projects downwards, particularly on an underside of the upper wall 44, substantially along the vertical direction H. A collar 49 of the one or more collars 49 can, in particular, be arranged or formed at a position corresponding to the mounting receptacle 46. In other words, the collar 49 can, in particular, provide or form an extension of the mounting receptacle 46 along the vertical direction H, beyond an underside of the upper wall 44.

[0388] The projection or extension beyond the underside of the upper wall 44, formed by the collar 49, can, in exemplary embodiments, be smaller than the thickness of the conductor section 30 and / or the flexible flat conductor 110 in the vertical direction H. This advantageously ensures a predetermined clamping force that frictionally connects the conductor section 30 and / or the flexible flat conductor 110 to the connector housing 11.

[0389] In other exemplary embodiments, the collar 49 can form a projection or extension beyond the underside of the upper wall 44, which essentially corresponds to the thickness of the conductor section 30 and / or the flexible flat conductor 110, or which is greater than the thickness of the conductor section 30 and / or the flexible flat conductor 110. This advantageously avoids a clamping force that could potentially deform or damage the conductors of the conductor section 30 and / or the flexible flat conductor 110. Furthermore, it advantageously ensures a defined stop between the lower and upper connector housing parts 20, 40. This, in turn, makes it possible to ensure a predetermined overall height of the flat connector 10, for example, for coupling with the complementary flat connector 50.

[0390] The collar 49 is designed in particular to provide an edge to the fixing section 32 of the conductor section 30 and / or the flexible flat conductor 110, especially against the insertion direction S or against the longitudinal direction L.

[0391] The collar 49 therefore advantageously enables, in particular together with the side wall 42, a positive-locking arrangement or reception of the conductor section 30 and / or the flexible flat conductor 110, in particular the fixing section 32, to be provided, in particular both in the insertion direction S and in the longitudinal direction. L, as well as against the insertion direction S or the longitudinal direction L.

[0392] The collar 49 therefore advantageously improves the ease of assembly of the flat connector 10, for example by facilitating the placement of the upper connector housing part 40 onto the conductor section 30 and / or the flexible flat conductor, or vice versa. To place the upper connector housing part 40 onto the conductor section 30 and / or the flexible flat conductor 110, or vice versa, the conductor section 30 and / or the flexible flat conductor 110 can already be placed against or inside the lower connector housing part 20. InIn further exemplary embodiments, however, the conductor section 30 and / or the flexible flat conductor 110 can first be placed on or in the upper connector housing part 40, and then, in particular immediately afterwards, the lower connector housing part 20 can be placed on or in the upper connector housing part 40 in order to fix the conductor section 30 and / or the flexible flat conductor 110 in a sandwich-like manner.

[0393] As particularly through the Figures 5a, 5b , 20a and 20b To illustrate, the upper wall 44 can be contoured on its upper side in the vertical direction H, for example, at least in sections being stepped, and / or on its lower side in the vertical direction H, in particular apart from the ends in the lateral direction B, be essentially planar.

[0394] This allows, on the one hand, good protection and good installation of the conductor section 30 and / or the flexible flat conductor 110 to be advantageously provided from above in the vertical direction H, and on the other hand, an improvement in the stiffness of the upper connector housing part 40.

[0395] As particularly through the Figures 5a and 5b As shown, in the first embodiment of the flat connector system 1, the upper wall 44 can be formed continuously, without a separation of the contact surface for the conductor section 30 and / or the flexible flat conductor 110 in the width direction B. This advantageously allows a flat connector system 1 with a comparatively small overall width in the width direction B to be provided, which also facilitates easy assembly of the conductor section 30 and / or the flexible flat conductor 110.

[0396] In contrast, particularly through the Figures 20a and 20bAs shown, in the second embodiment of the flat connector system 1, the upper wall 44 can be formed, in particular, in sections, with at least one separation of the contact surfaces for the conductor section 30 and / or the flexible flat conductor 110 in the width direction B. This advantageously provides a coupling section 14 in the area of ​​the separation of the contact surfaces for the conductor section 30 and / or the flexible flat conductor 110, thereby enabling a flat connector system 1 with a particularly low overall height in the height direction H to be provided.

[0397] The upper wall 44 and the lower wall 24 of the connector housing 11 of the flat connector 10 advantageously provide protection for the conductor section 30 and / or the flexible flat conductor 110 in the vertical direction H. An opening formed on a front side in the insertion direction S between the upper wall 44 and the lower wall 24 can, in particular, have a height of less than about 5 mm, especially in the range of about 2.5 mm to about 4.5 mm, for example, about 4 mm.

[0398] This advantageously provides efficient touch protection for the conductor section 30 and its conductor elements 34.

[0399] The upper connector housing part 40 can, in particular, be formed in one piece. The connector housing 11 of the flat connector 10 can be formed in multiple parts, in particular in two parts, i.e., from the lower connector housing part 20 and the upper connector housing part 40. This advantageously ensures simple manufacturing and assembly of the connector housing 11.

[0400] As soon as the conductor section 30 and / or the flexible flat conductor 110 is attached to or inserted into the lower connector housing part 20 or the upper connector housing part 40, the conductor section 30 and / or the flexible flat conductor 110 is advantageously supported by the respective lower or upper connector housing part 20, 40 and protected at least on one side in the vertical direction H. This also advantageously allows assembly with the lower or upper connector housing part 20, 40 not yet attached.

[0401] Once the conductor section 30 and / or the flexible flat conductor 110 is arranged or inserted at least section by section between the lower and upper connector housing parts 20, 40, the conductor section 30 and / or the flexible flat conductor 110 can advantageously be supported and protected at least on both sides in the vertical direction H.

[0402] If the lower and upper connector housing parts 20, 40 are fastened together, and in particular the conductor section 30 and / or the flexible flat conductor 110 is arranged between them, the flat connector 10 is in a mounted state.

[0403] In the assembled state of the flat connector 10, the conductor section 30 and / or the flexible flat conductor 110 lies flush against a lower side of the upper wall 44 in the height direction H.

[0404] Additionally or alternatively, the conductor section 30 and / or the flexible flat conductor 110, in the assembled state of the flat connector 10, lies in particular flush against the main body 23 of the lower connector housing part 20, especially against an upper side of the upper step of the connector housing part 20 in the height direction H.

[0405] Furthermore, additionally or alternatively, the conductor section 30 and / or the flexible flat conductor 110 is spaced apart in the assembled state of the flat connector 10, in particular from the lower wall 24 of the connector housing 11 of the flat connector 10, and in particular substantially in the vertical direction H.

[0406] By arranging the conductor section 30 and / or the flexible flat conductor 110 on the flat connector 10, as described herein, the conductor section 30 and / or the flexible flat conductor 110 can be advantageously protected at least on both sides in the vertical direction H. Furthermore, the conductor section 30 and its conductor elements 34 can be supported, in particular, when contacting the contacts 70 of the complementary flat connector 50, wherein the contacts 70 are deformed elastically, at least partially, and in particular substantially in the vertical direction H.

[0407] In the Figures 2b and 15a as in the Figures 17b , 30a and 30b Each example of a safety element 5 is shown. The one in the Figures 2b and 15a The locking element 5 shown as an example is designed particularly for the first embodiment of the connector system 1. The locking element shown in the Figures 17b , 30a and 30b The locking element 5 shown as an example is designed in particular for the second embodiment of the connector system 1.

[0408] As particularly through the Figures 2b , 15a , 17b , 30a and 30bAs further illustrated in the figures, in which the locking element 5 is at least partially shown, the locking element 5 can in particular have one or more latch projections 82 which are designed to engage or stop with one or more latches 45 of the flat connector 10 on which the receptacle 12 is formed. This allows the locking element 5 to be fixed to the receptacle 12, particularly in the non-locking position. Specifically, the locking element 5 can be fixed to the receptacle 12 substantially in the insertion direction S or in the longitudinal direction L when the flat connector system 1 is in the uncoupled or decoupled state.

[0409] Additionally or alternatively, the locking element 5 can, in particular, have one or more retaining elements 88 configured to engage or stop with one or more retaining features 48 of the flat connector 10 on which the receptacle 12 is formed. This allows the locking element 5 to be fixed to the receptacle, particularly in the non-locking position. Specifically, the locking element 5 can be fixed to the receptacle 12 substantially opposite to the insertion direction S or the longitudinal direction L, regardless of whether the flat connector system 1 is in the coupled or uncoupled state.

[0410] The trap projection(s) 82 and / or the retaining element(s) 88 can each be designed in particular as a projection, in particular as a projection that extends from a prong 86 of the locking element 5 which extends substantially in the insertion direction S or in the longitudinal direction L.

[0411] A trap projection 82 of one or more trap projections 82 can, in particular, project in a different direction than a restraint 88 of one or more restraints 88. The trap projection(s) 82 can, for example, project substantially in the vertical direction H. The restraint(s) 88 can, for example, project substantially in the lateral direction B.

[0412] In alternative embodiments, the trap projections 82 can, for example, project substantially in the lateral direction B, and / or the retaining elements 88 can, for example, project substantially in the vertical direction H.

[0413] The locking element 5 can be advantageously fixed to the receptacle 12 by means of the trap projections 82 and retaining elements 88, which extend in various directions, and in particular on both sides along the insertion direction S or the longitudinal direction L. Furthermore, the respective fixings in a predetermined direction, which secure the locking element 5 with a predetermined fixing force, can advantageously be defined independently of one another.

[0414] The locking element 5 has, in particular, several prongs 85, 86, each of which can have, in particular, a main extension substantially in the insertion direction S or in the longitudinal direction L. The prongs 85, 86 each extend from the same main body of the locking element 5 and can, in particular, be formed integrally with the other prongs 85, 86. The prongs 85, 86 are separated from each other, in particular, substantially in the lateral direction B, or, in other words, spaced apart from each other substantially in the lateral direction B.

[0415] This ensures that the locking element 5 advantageously provides a functional separation between the prongs 85, 86, which in turn advantageously prevents undesirable fatigue and / or damage to the locking element 5 and its prongs 85, 86. Furthermore, this advantageously ensures a reversible and, in particular, repeatable transfer of the locking element 5 into the various positions and states, such as the locking position and the non-locking position.

[0416] Between a first prong 86 of the locking element 5 and a second prong 86 of the locking element 5, on each of which a trap projection 45 and a retaining element 88 may be arranged or formed, a locking prong 85 may in particular be arranged or formed.

[0417] The locking pin 85 has, in particular, a projection 87 which can engage with a locking projection 47, 57 of the flat connector 10 or the complementary flat connector 50. The projection 87 of the locking pin 85 can, but is not limited to, project from the locking pin 85, in particular substantially in the vertical direction H.

[0418] The lead of 87 can be used in conjunction with the safety lead of 47, 57, as exemplified by the Figures 12b , 14b , 26a and 27b clarifies, in particular, a locking force to transfer the locking element 5 from the non-locking position to the locking position, and / or a release force to transfer the locking element 5 from the locking position to the non-locking position.

[0419] The projection 87 of the locking prong 85 of the locking element 5 can be formed, in particular along the insertion direction S or along the longitudinal direction L, with a section-wise contour, in particular with a section-wise different contour facing the complementary locking projection 47, 57.

[0420] As exemplified in particular by the Figures 15a , 30a and 30b To clarify, the projection 87 can, but is not limited to, be in particular arc-shaped or semicircular, wherein the arc-shaped or semicircular shape extends at least partially and constantly in the width direction B along the locking prong 85. In alternative embodiments, the projection 87 can, for example, be spherically shaped or, for example, be formed with a segmental ramp shape or chamfer.

[0421] The section-wise contour of the projection 87, in conjunction with the securing projection 47, 57, advantageously allows a securing force and a release force to be defined, which are independent of each other.

[0422] The lead of 87, as particularly evident in the Figures 15a , 30a and 30b As exemplified, a first contour section with increasing extension in the vertical direction H is formed opposite the insertion direction S or opposite the longitudinal direction L. Advantageously, a transition into the locking position can be defined with an increasing locking force and a maximum locking force. This makes it advantageously more difficult or even impossible for the locking element 5 to unintentionally move into the locking position.

[0423] The lead of 87, as particularly evident in the Figures 15a , 30a and 30bAs exemplified, and in particular following the first contour section opposite the insertion direction S or opposite the longitudinal direction L, a second contour section with decreasing extent in the vertical direction H can advantageously be defined for transitioning into the locking position with a decreasing locking force after exceeding the maximum locking force. The decreasing locking force can, for example, also be a locking force less than zero, so that the locking element 5 passively moves into the locking position after overcoming the maximum locking force.

[0424] The securing process described herein, in particular with a section-wise contour of the projection 87, can advantageously improve haptic feedback when transferring the securing element 5 into the securing position as well as into the non-secure position.

[0425] Alternatively or additionally, the locking projection 47, 57 of the flat connector 10 or of the complementary flat connector 50, as shown by way of example in the Figures 12a, 12b , 14a, 14b , 23a , 24a , 26a and 27b shown, have a first contour section which has an increasing extension along the height direction H in the insertion direction S or in the longitudinal direction L.

[0426] Alternatively or additionally, the locking projection 47, 57 of the flat connector 10 or the complementary flat connector 50, as exemplified in the Figures 12a, 12b , 14a, 14b , 23a , 24a , 26a and 27b shown, have a second contour section which, in the insertion direction S or in the longitudinal direction L, in particular following the first contour section, has a decreasing extent along the height direction H.

[0427] The first contour section of the locking projection 47, 57 advantageously enables a predetermined, in particular elastically restorable, deformation to be applied to the locking element 5, especially to the elastically restorable locking prong 85 of the locking element 5. The second contour section of the locking projection 47, 57 advantageously enables the restorable deformation to be reduced in a predetermined manner, in particular such that the locking element 5 passively, without any further application of force to the locking element 5, essentially in the insertion direction S, moves into the locking position.

[0428] This can improve haptic and / or visual feedback when moving the locking element 5 into the locking position and / or back into the non-locking position.

[0429] As particularly through Fig. 27bAs illustrated, in the second embodiment of the flat connector system 1, wherein the locking projection 57 is arranged or formed on the complementary flat connector 50, an increasing preload can advantageously be applied to the locking element 5 during a disengaging relative movement of the flat connector 10 and the complementary flat connector 50, particularly against the insertion direction S, S'. The locking element 5 is formed by its contact with the restorable, interlocking element 7, which is held in engagement with the interlocking section 8 with a correspondingly increasing preload.

[0430] This allows for the advantageous passive provision of an increasing force directed against loosening from the secured state, which in turn advantageously ensures a high level of connection security.

[0431] The locking element 5 can have, in particular, an actuating section 84 at a rear end in the longitudinal direction L or in the insertion direction S. The actuating section 84 can, in particular, be designed as a rear projection in the longitudinal direction L or in the insertion direction S, which projects substantially in the vertical direction H. The actuating section 84 can, in particular, have a chamfer on a front side in the longitudinal direction L or in the insertion direction S, and / or, in particular, have a flat stop on a rear side in the longitudinal direction L or in the insertion direction S.

[0432] The actuating section 84 advantageously enables simple actuation of the locking element 5, in particular simple application of a force to the locking element 5 in the insertion direction S, as well as simple gripping of the locking element 5 in order to move it against the insertion direction S.

[0433] The locking element 5 can have a groove 83, in particular on each prong 86, on which at least one of the trap projection 45 and the retaining element 88 is also arranged.

[0434] The groove 83 can be configured, in particular, to engage with one or more release elements 55 of the complementary flat connector 50 in a securing position of the locking element 5, as exemplified in particular in the Figure 14a and 28a shown.

[0435] This allows for the advantageous reduction of a particularly elastically resilient deformation of the tines 86.

[0436] In exemplary embodiments, the groove 83 can have a section-wise contour along the longitudinal direction L or along the insertion direction S. The one or more grooves 83 can interact with the one or more release elements 55, in particular by means of a section-wise contour, as described analogously to the projection 87 and the complementary locking projection 47, 57.

[0437] The locking element 5 has in particular one or more locking surfaces 81, wherein the locking surfaces 81 are each designed to engage a restorable, interlocking element 7 in such a way that a restorable deformation of the restorable, interlocking element 7 is made more difficult or blocked.

[0438] The locking element 5, by means of the locking surfaces 81, in particular ensures a non-releasable locking of a coupling between coupling section 14 and complementary coupling section 54, in particular a locking that cannot be released without destruction.

[0439] This allows the flat connector system 1 to be advantageously secured against loosening, while at the same time advantageously facilitating the assembly of the flat connector system 1.

[0440] As particularly through Fig. 15aTo clarify, the securing surface 81 can, in particular, have a main extent substantially in the insertion direction S or substantially in the longitudinal direction L, for example with an inclination relative to the insertion direction S or the longitudinal direction L. The inclination can, for example, be in the range of approximately 5° to approximately 30°, particularly in the range of approximately 5° to approximately 20°. The inclination is, in particular, the angle that the securing surface 81 forms with an imaginary line extending substantially in the longitudinal direction L or in the insertion direction S, when viewed along the lateral direction B or in a section plane perpendicular to the lateral direction.

[0441] The inclination of the securing surface 81 advantageously allows, as exemplified by Figure 13aThis illustrates that when attempting to separate the coupling section 14 and the complementary coupling section 54 from each other, when the locking element 5 is in the locking position, a load distribution parallel to the vertical direction H and the longitudinal direction L is ensured. This allows the load to be advantageously distributed in a predetermined manner during release attempts in the locked state, and in particular ensures an improved service life of the flat connector system 1.

[0442] As particularly through Fig. 30b To clarify, the securing surface 81 can in particular have a main extent essentially in the insertion direction S or essentially in the longitudinal direction L, and in particular be arranged or formed as a projection extending essentially parallel to the height direction H on a side of the securing element 5 that is lower in the height direction H.

[0443] The locking surface 81 advantageously enables a rail-like guided transition, in particular a translational transition, between the non-locking and the locking position of the locking element 5. Integrally, the locking surface 81 provides protection against a restorable deformation of the restorable, interlocking element 7.

[0444] In the Figures 15b and 15c as in Fig. 30c Each example shows contact 70. The one in the Figures 15b and 15c The contact 70 shown as an example is designed in particular for the first embodiment of the connector system 1.

[0445] The in Fig. 15b The contact 70 shown specifically represents a contact 70 in an undisplaced position or in an undisplaced state. The one in Fig. 15b The contact 70 shown can therefore be considered in particular as contact 70, as shown in Fig. 8b The contact 70, as shown, corresponds to the contact 70, as shown in the diagram. Fig. 15bshown, can also correspond in particular to the respective contact 70, as shown in the further figures for the first embodiment of the flat connector system 1, in particular the figures which depict a non-coupled state of the flat connector system 1.

[0446] The in Fig. 15c The contact 70 shown specifically represents a contact 70 in a deflected position or in a deflected state. The one in Fig. 15c The contact 70 shown can therefore be considered in particular as contact 70, as shown in Fig. 14b The contact 70, as shown, corresponds to the contact 70, as shown in the diagram. Fig. 15c shown, can also correspond in particular to the respective contact 70, as shown in the further figures for the first embodiment of the flat connector system 1, in particular the figures which depict a coupled state of the flat connector system 1.

[0447] The in Fig. 15cThe contact 70 shown indicates in particular a deflected state 70 of the in Fig. 15b The contact shown was 70 again.

[0448] The in Fig. 30c The contact 70 shown as an example is specifically designed for the second embodiment of the connector system 1. The one shown in Fig 30c The contact 70 shown is depicted specifically in its undisplaced position or state. The one in Fig. 30c The contact 70 shown can therefore be considered in particular as contact 70, as shown in Fig. 23b The contact 70, as shown, corresponds to the contact 70, as shown in the diagram. Fig. 30c shown, can also correspond in particular to the respective contact 70, as shown in the further figures for the second embodiment of the flat connector system 1, in particular the figures which depict a non-coupled state of the flat connector system 1.

[0449] Even though the contact 70 in the figures for the second embodiment of the flat connector system 1 is not shown deflected or compressed in the vertical direction H in the coupled state of the flat connector system 1, it is understood that the contact 70 may in particular have a restoring deflection, in particular essentially analogous to the contact 70 of the first embodiment of the flat connector system 1.

[0450] As exemplified in particular by the Figures 3b , 8b , 14b , 15b , 15c , 18b , 23b , 29 and 30c , as well as the other figures in which contact 70 is shown at least in sections, the contact 70 in particular has a connecting section 71.

[0451] The connection section 71 can, in the assembled state of the complementary flat connector 50, extend away from the connector housing 51 of the complementary flat connector 50, for example, substantially in the longitudinal direction L and / or in the vertical direction H. The connection section 71 can, in particular, be a solderable section. The connection section 71 is configured, in particular, to form an electrically conductive connection to a printed circuit board (not shown) and / or to an electrical component (not shown).

[0452] The connecting section 71 can, for example, have an extension in the range of approximately 0.5 mm to approximately 1.5 mm. The connecting section 71 can, in particular, form a first end of the contact 70.

[0453] The contact 70 can further include, in particular, a locking section 73, which is designed, for example, for positive locking, friction locking, and / or material locking on a contact receptacle 56 of the connector housing 51. The locking section 73 can, for example, have one or more projections, which project, for example, substantially in the width direction B and / or in the height direction H from the contact 70.

[0454] The fixing section 73 can, for example, be pressed into the contact receptacle 56, or in other words, crimped. In other words, the fixing section 73 and the contact receptacle 56 can form an interference fit or an interference fit in exemplary embodiments.

[0455] Alternatively or additionally, the contact point 56 may have one or more recesses complementary to the projections of the stipulation section 73.

[0456] The fixing section 73 can, in particular, have an increased width in the lateral direction B and / or an increased thickness in the vertical direction H compared to the remaining contact 70. For example, the fixing section 73 can have a width in the lateral direction B of approximately 0.35 mm to approximately 0.7 mm, at least in some sections, and in particular, a width in the lateral direction B of approximately 0.5 mm to approximately 0.6 mm. In contrast, the contact 70 can, in exemplary embodiments, have a width in the lateral direction B of approximately 0.2 mm to approximately 0.3 mm. The contact 70 can, in particular, have a thickness of approximately 0.1 mm to approximately 0.2 mm.

[0457] For example, one contact receptacle 56 of the multiple contact receptacles 56 of the connector housing 51 can essentially have a width in the width direction B in the range of about 0.25 mm to about 0.4 mm, in particular in the range of about 0.3 mm to about 0.35 mm.

[0458] The fixing section 73 may in particular have a main extension which is essentially parallel to the insertion direction S' of the complementary flat connector 50.

[0459] The fixing section 73 advantageously enables a fixed fixing on the connector housing 51 of the complementary flat connector 50, and in particular on a contact receptacle 56 of the connector housing 51.

[0460] At a front end of the contact 70 in the insertion direction S' of the complementary flat connector 50 or at an end of the contact 70 against the longitudinal direction L, the contact 70 has in particular a bent section 74.

[0461] The curved section 74 extends in particular between the fixing section 73 and a curved contact area 76 of the contact 70, wherein the curved contact area 76 is in particular configured to electrically contact a conductor element 34 of the conductor section 30, in particular in the coupled state of the flat connector system 1.

[0462] The angles of the respective sections of contact 70 described herein and in particular below are illustrated by the dashed lines in the Figures 8b , 14b 15b, 15c , 23b , 29 and 30c clarifies which in curved form represent the relevant angle of the respective section of contact 70, and in straight form represent the edges of contact 70 adjacent to the relevant angle.

[0463] The curved section 74 particularly encloses an acute angle, i.e., an angle of less than 90°. The curved section 74 can, in particular, form the foremost section of the contact 70 in the insertion direction S'. This allows the contact 70 to be advantageously designed to be elastically resilient, whereby, in the case of electrically conductive contact with a conductor element 34, the curved section 74 in particular deforms towards a smaller angle, i.e., an even more acute angle, than in an uncoupled state of the flat connector system 1. The curved section 74 can, particularly on a side facing away from the insertion direction S', enclose a smaller angle in a deflected position than in a non-deflected position.

[0464] The curved section 74 can, in an undisplaced position, i.e. in an uncoupled state of the flat connector system 1, for example enclose an angle in the range of about 10° to about 30°, in particular an angle in the range of about 13° to about 27°.

[0465] The curved section 74 can, in a deflected position, i.e. in a coupled state of the flat connector system 1, enclose, for example, an angle in the range of about 5° to about 25°, in particular an angle in the range of about 8° to about 22°.

[0466] The curved contact area 76 can, in particular, form an uppermost section of the contact 70 in the vertical direction H. The curved contact area 76 can, in particular, be a section of the contact 70 exposed in the vertical direction H. The curved contact area 76 can, in particular, be exposed upwards in the vertical direction H relative to a first section 75 adjacent at the front in the insertion direction S', and / or relative to a second section 77 adjacent at the rear of the curved contact area 76 in the insertion direction S'.

[0467] The curved contact area 76 can advantageously and reliably ensure electrically conductive contact with a conductor element 34, with the contact being made in a particularly soft, resilient manner. This, in turn, can advantageously improve the service life of the conductor elements 34 and the contacts 70.

[0468] The curved contact area 76 can, in particular on a side facing the fixing section 73 of the contact 70, have an obtuse angle, i.e., an angle of more than 90°. The curved contact area 76 can, in particular on a side facing the fixing section 73, enclose a larger angle in a deflected position than in a non-deflected position.

[0469] The curved contact area 76 can, in an undisplaced position, i.e. in an uncoupled state of the flat connector system 1, for example enclose an angle in the range of about 95° to about 135°, in particular an angle in the range of about 100° to about 130°.

[0470] The curved contact area 76 can, in a deflected position, i.e. in a coupled state of the flat connector system 1, enclose, for example, an angle in the range of about 110° to about 145°, in particular an angle in the range of about 115° to about 140°.

[0471] The curved contact area 76 advantageously enables a safe and at the same time electrically conductive contact that is gentle on both contact 70 and conductor element 34, thereby advantageously improving the respective service life as well as that of the flat connector system 1.

[0472] On one side of the curved contact area 76, which is facing away from the curved section 74, the contact 70 in particular has a support section 78.

[0473] The support section 78 can be arranged or formed at a substantially second end of the contact 70. The support section 78 can, in particular, be curved, especially such that the support section 78 is substantially concave on a side facing the fixing section 73 in the vertical direction H.

[0474] The support section 78 can, in an undisplaced position, i.e. in an uncoupled state of the flat connector system 1, for example maintain a distance, particularly in the vertical direction. H, compared to specification section 73, which is in the range of approximately 0.05 mm to approximately 0.15 mm, in particular in the range of approximately 0.08 mm to approximately 0.12 mm, in particular a distance of approximately 0.1 mm.

[0475] The support section 78 can, in particular in the longitudinal direction L and / or in the insertion direction S of the flat connector system 1, have a greater distance to the bent section 74 than the bent contact area 76 to the bent section 74.

[0476] The support section 78 can be configured in a deflected position, i.e. in a coupled state of the flat connector system 1, in particular to contact the fixing section 73, or in other words to be supported on the fixing section 73.

[0477] The support section 78 advantageously enables a predetermined contact force to be ensured between the bent contact area 76 and the conductor element 34.

[0478] In conventional flat connectors, the contacts are made of gold or gold-plated, which ensures sufficient electrical conductivity even with low contact forces.

[0479] In contrast, the present contact 70 advantageously enables, through the elastically restorable deformation of the contact 70, wherein the support section 78 adjacent to the bent contact area 76 rests against the fixing section 73, that a predetermined contact force between the bent contact area 76 and the conductor element 34 is ensured.

[0480] This, in turn, allows contact 70 to be tin-plated, i.e., it can be made without gold plating or without any gold at all, without impairing its electrical conductivity. This, in turn, allows contact 70 to be manufactured advantageously and cost-effectively, and also to be easily connected to a circuit board and / or an electrical device, for example by soldering.

[0481] As exemplified in the Figures 15b, 15c and 30cAs shown, a second section 77 extending essentially in a straight line or linearly extending can be formed between the curved contact area 76 and the support section 78.

[0482] This allows the support of the curved contact area 76 to be advantageously stiffened by the support section 78, thereby advantageously ensuring a predetermined contact force.

[0483] Alternatively or additionally, a substantially straight first section 75 can be formed between the curved contact area 76 and the curved section 74. The first section 75 can, in particular, have a kink 79, the apex of which points in the vertical direction H towards the fixing section 73. In other words, the first section 75 can, in particular, have a kink 79 on a lower side of the first section 75 in the vertical direction H. The kink 79 can, in particular, form an obtuse angle on a side higher in the vertical direction H, i.e., an angle of more than 90°. The kink 79 can, in particular, form an angle of more than about 100° on a side higher in the vertical direction H, for example, a value of about 105°, or, in particular, a value of more than about 105°, for example, a value of about 108°.

[0484] The bend 79 can preferably be adjacent to the curved contact area 76.

[0485] The bend 79 advantageously allows the curved contact area 76 and its bend to be stiffened. This advantageously concentrates any deflection of the contact 70 onto the curved section 74.

[0486] This allows the support of the curved contact area 76 to be advantageously stiffened by the support section 78, thereby advantageously ensuring a predetermined contact force.

[0487] In particular, the curved contact area 76, the first section 75, and the second section 77 can form or be encompassed by a contact section of the contact 70. The contact section is, in particular, capable of being deflected with a return spring. The contact section, and in particular its curved contact area 76, is in electrically conductive contact with the conductor section 30, in particular with a conductor element 34 of the conductor section 30, when coupled, and optionally also in direct physical contact.

[0488] In exemplary embodiments, the contact 70 can have a thickness build-up section 72, particularly between the connection section 71 and the fixing section 73. The thickness build-up section 72 can, in particular, have a main extent that is substantially parallel to the vertical direction H.

[0489] The increased thickness section 72 allows, in particular, the connection section 71 to be formed at a level that essentially corresponds to the lowest level in the vertical direction H of the flat connector system 1. This advantageously relieves the contact section 70 of the connection section 71 when it is attached to a printed circuit board and / or an electrical device. This, in turn, advantageously improves the service life of the contacts 70 and, consequently, the service life of the flat connector system 1.

[0490] A contact 70 can be manufactured in a single piece, for example as a bent part. This makes the contact 70 advantageously cost-effective to produce.

[0491] Contact 70 may, but is not limited to, comprise or consist of, for example, copper, a copper alloy, in particular bronze, nickel, gold-plated nickel, gold-flash-plated phosphor nickel, silver-plated nickel, tin-plated nickel, steel, or any other conductive material. Additionally or alternatively, Contact 70 may, in particular, be tin-plated. Furthermore, additionally or alternatively, Contact 70 may, in particular, not be gold-plated or contain no gold.

[0492] The connector housing 51 of the complementary flat connector 50 can, for example, comprise or consist of a polymer, in particular a reflow-solderable polymer. For example, the connector housing 51 can comprise or consist of polyetheretherketone (PEEK) and / or polyamide (PA). This makes it advantageous for the connector housing 51 to be manufactured with precise dimensions, and furthermore, the complementary flat connector 50, equipped with the mounted contacts 70, can be connected to a printed circuit board and / or an electrical device in a particularly simple and reliable manner.

[0493] Starting from the uncoupled state, such as through the Figures 9a, 9b , 10a , 24a, 24b and 25aTo clarify, the one or more trap projections 82 are engaged with or abut the one or more traps 45. Furthermore, the one or more retaining elements 88 can, in particular, be engaged with the retaining devices 48, or be limited in their movement against the insertion direction S.

[0494] During the coupling process, in which the coupling section 14 and the complementary coupling section 54 come into mutual engagement, as described by the Figures 11a, 11b , 12a, 12b , 26a, 26b and 27a As illustrated, the locking element 5 is deformed at least in sections, in particular in such a way that the one or more trap projections 82 are no longer engaged with or abutting the one or more traps 45.

[0495] In particular, the one or more release elements 55 of the complementary flat connector 50 deflect at least one of the receptacle 12 and the locking element 5 accordingly, in particular elastically restorable.

[0496] Further progress is made, as through the Figures 12b and 26a clarifies, in particular, a first contour section of the projection 87 of the locking element 5 in contact with a first contour section of the locking projection 47, 57, or in an adjacent position.

[0497] During securing, i.e., when moving the securing element 5 into the securing position, whereby the Figures 14a, 14b , 27b , 28a, 28b and 29 In particular, to reproduce the secured state, i.e. the securing position of the locking element 5, the elastic return of the locking element 5 is at least partially or completely reduced.

[0498] In particular, the locking element 5 is elastically deformed in the area of ​​the projection 87 when, under the application of the locking force, the first contour sections of the projection 87 and the locking projection 47, 57 slide against each other. After overcoming a maximum deflection of the locking element 5 in the area of ​​the projection 87 and / or of the respective connector housing 11, 51 in the area of ​​the locking projection 47, 57, further attainment of the locking position can occur essentially passively, in particular through the return of the elastic deformations of the locking element 5.

[0499] In the locked state of the flat connector system 1, the second contour section of the locking projection 47, 57 and the second contour section of the projection 87 of the locking element 5 are oriented towards each other or abut each other. Additionally or alternatively, the one or more release elements 55 can be received, at least partially, in the grooves 83 of the locking element 5 such that the locking element 5 exhibits no or only a slight elastic deformation in the locked state.

[0500] As exemplified in the Figures 13b and 28bAs shown, in the secured state, the one or more latch projections 82 can be arranged on a side of the receptacle 12 or the upper wall 44 facing away from the one or more latches 45. The surfaces of the latch projections 82 and the receptacle 12 or the upper wall 44 facing each other in the secured state can, for example, together with the locking projection 47, 57 and the projection 87 of the locking element 5, define a release force to move the locking element 5 from the securing position to the non-locking position.

[0501] This makes it advantageous to separate a locking force from a release force, or in other words, to make it independent.

[0502] The flowchart in Fig. 31This document describes an exemplary method for ensuring a positive-locking connection between a flat connector 10 and a complementary flat connector 50. The method relates in particular to a flat connector 10 and / or a complementary flat connector 50, and especially to a flat connector system 1, as shown in the further figures and described herein.

[0503] The flowchart in Fig. 31 describes in particular a method for securing a positive-locking coupling between a flat connector 10 and a complementary flat connector 50, wherein the flat connector 10 has a coupling section 14 and the complementary flat connector 50 has a complementary coupling section 54 which can be positively coupled to the coupling section 14.

[0504] The procedure includes, but is not limited to, the following steps, in particular in this order: S10Arranging a locking element 5 on a receptacle 12 of a coupling section 5 and the complementary coupling section 54; and S20Moving the locking element 5 from a non-locking position to a locking position on the receptacle 12, wherein the locking element 5 is configured to provide a locked state of coupling between the coupling section 14 and the complementary coupling section 54 in the locking position, in which a release of the positive locking coupling between the coupling section 14 and the complementary coupling section 54 is prevented, wherein the coupling section 14, the complementary coupling section 54 and the locking element 5 are configured to be complementary to each other such that in a decoupled state, in which the coupling section 14 and the complementary coupling section 54 are not coupled to each other, the locking element 5 is fixed in the non-locking position.

[0505] Step S20 of transferring the locking element 5 into the locking position may in particular include the application of a predetermined locking force, for example to transfer the locking element 5 into the locking position.

[0506] In exemplary embodiments, the receptacle 12 can comprise one or more latches 45 and / or the locking element 5 can comprise one or more latch projections 82 complementary to the one or more latches 45. The one or more latches 45 can, in particular, interact with the one or more latch projections 82 such that: if a step of positive locking coupling of the coupling section 14 with the complementary coupling section 54 is carried out before the locking element 5 is moved into the locking position, the locking element 5 can be moved into the locking position, and if a step of positive locking coupling of the coupling section 14 with the complementary coupling section 54 is not carried out before the locking element 5 is moved into the locking position, the one or more latch projections 82 are engaged or come into engagement with the one or more latches 45 in such a way that the locking element 5 is or becomes fixed in the non-locking position.

[0507] In exemplary embodiments, step S20 of transferring the locking element 5 into the locking position can include moving the locking element 5 essentially in the insertion direction S.

[0508] In further exemplary embodiments, one of the coupling section 14 and the complementary coupling section 54 can comprise a locking projection 47, 57, and the locking element 5 can comprise a projection 87 complementary to the locking projection 47, 57, wherein the locking projection 47, 57 and the complementary projection 87 of the locking element 5 define a predetermined release force in the locked state, which must be applied to move the locking element 5 from the locking position to a non-locking position.

[0509] The flowchart in Fig. 32 This document presents an exemplary method for manufacturing a flat connector 10. The method relates in particular to a flat connector 10, and especially to a flat connector system 1, as shown in the further figures and described herein.

[0510] The flowchart in Fig. 32describes in particular a method for manufacturing a flat connector 10.

[0511] The procedure includes, but is not limited to, the following steps, in particular in this order: S110 Providing a first upper connector housing part 40; S120 Providing a second lower connector housing part 20; S130 Arranging a conductor section 30 with flexible flat conductor 110 on or in the second lower connector housing part 20; S140 Arranging the first upper connector housing part 40 on the conductor section 30 which is arranged on or in the second lower connector housing part 20; and S150 Fixing the first upper connector housing part 40 and the second upper connector housing part 20 to each other.

[0512] The method for manufacturing a flat connector 10 can further comprise, in particular, a step of providing a conductor section 30 with a flexible flat conductor 110. This step can be carried out, in particular, before steps S130 and S130'.

[0513] Steps S130, S140 and S150 can be performed in exactly this order.

[0514] In further exemplary embodiments, the method may comprise the following steps, in particular in this order, especially after steps S110 and S120: S130' Arranging a conductor section 30 with flexible flat conductor 110 on or in one of the first upper connector housing part 40 and the second lower connector housing part 20; S140' Arranging the other of the first upper connector housing part 40 and the second lower connector housing part 20 on the conductor section 30 which is arranged on or in one of the first connector housing part 40 and the second lower connector housing part 20; and S150 Fixing the first upper connector housing part 40 and the second upper connector housing part 20 to each other.

[0515] It is understood that the elements described above as complementary may also be described without the term complementary, and in particular the element not described as complementary, which is the complementary element. Reference symbol list

[0516] 1 Flat connector system 5 Locking element 7 Releasable interlocking element 8 Interlocking section 10 Flat connector 11 Connector housing 12 Receptacle 14 Coupling section 20 Lower connector housing part 22 Recess 23 Main body 24 Lower wall 25 First stiffening ribs 26 Fastening element 27 Second stiffening ribs 30 Conductor section 32 Fixing section 34 Conductor element 40 Upper connector housing part 42 Side wall 43 Guide element 44 Upper wall 45 Latch 46 Fastening receptacle 47 Locking projection 48 Retaining device 49 Collar 50 Complementary flat connector 51 Connector housing 52 Lower wall 53 Guide receptacle 54 Complementary coupling section 55 Release element 56 Contact receptacle 57 Locking projection 58 Fixing section 59 Fixing means 60 Contact holder 61 Front wall 63 Support wall 65 Top wall 67 Side wall 70 Contact 71 Connection section 72 Thickness build-up section 73 Fixing section 74 Curved section 75 First section 76 Curved contact area 77 SecondSection 78 Support section 79 Bend 81 Locking surface 82 Latch projection 83 Groove 84 Actuating section 85 Locking prong 86 Prong 87 Projection 88 Retention 110 Flexible flat conductor B Width direction H Height direction L Longitudinal direction M, M' Mounting direction S, S' Insertion direction S10 to S20 Steps of a method for positive locking coupling S110 to S150 Steps of a method for manufacturing a flat connector

Claims

1. Flat connector system (1) comprising: - a flat connector (10) with a coupling section (14), - a complementary flat connector (50) with a coupling section (54) complementary to the coupling section (14) of the flat connector (10), and - a locking element (5), -- wherein one of the coupling section (14) and the complementary coupling section (54) has a receptacle (12) on which the locking element (5) is arranged at least partially, -- wherein the coupling section (14) and the complementary coupling section (54) are positively coupled, -- wherein the locking element (5) prevents the positive coupling between the coupling section (14) and the complementary coupling section (54) from being released in a locked state of the flat connector system (1).-- wherein the locking element (5) allows the positive-locking coupling between coupling section (14) and complementary coupling section (54) to be released in an unsecured state of the flat connector system (1), -- wherein the locking element (5) has a locking position in the secured state of the flat connector system (1) and a non-locking position in the unsecured state, and --- wherein the coupling section (14), the complementary coupling section (54) and the locking element (5) are designed to be complementary to each other such that in a decoupled state in which the coupling section (14) and the complementary coupling section (54) are not coupled to each other, the locking element (5) is fixed in the non-locking position.

2. Flat connector system (1) according to claim 1, wherein the receptacle (12) has a latch (45) which interacts with a latch projection (82) of the locking element (5) such that in the decoupled state, in which the coupling section (14) and the complementary coupling section (54) are not coupled to each other, the latch projection (82) is engaged with the latch (45) such that the locking element (5) is fixed in the non-locking position.

3. Flat connector system (1) according to claim 1 or 2, wherein one of the coupling section (14) and the complementary coupling section (54) comprises an interlocking section (8) and the other of the coupling section (14) and the complementary coupling section (54) comprises a restorable interlocking element (7) which engages in the interlocking section in the coupled state of the connector system (1), wherein the locking element (5) in the locked state of the flat connector system (1) prevents a reset of the restorable interlocking element (7) such that the coupling section (14) and the complementary coupling section (54) are not non-destructively coupled to each other.

4. Flat connector system (1) according to one of the preceding claims, wherein the locking element (5) has a locking surface (81) which, in the locked state of the flat connector system (1), restrains against a side of the recoil-capable, recoil-capable element (7) facing away from the section (8) that can be engaged.

5. Flat connector system (1) according to one of the preceding claims, wherein the locking element (5) can be arranged in such a form-fitting manner on the receptacle (12) that the locking element (5) can be moved between the locking position of the locking element (5) and the non-locking position of the locking element (5) without releasing the form-fitting arrangement on the receptacle (12).

6. Flat connector system (1) according to one of the preceding claims, wherein one of the coupling section (14) and the complementary coupling section (54) has a locking projection (47; 57), wherein the locking element (5) has a projection (87) complementary to the locking projection (47; 57), and wherein the locking projection (47; 57) and the complementary projection (87) of the locking element (5) define a release force to transfer the locking element (5) from the secured state of the flat connector system (1) to the unsecured state of the flat connector system (1).

7. Flat connector system (1) according to one of the preceding claims, wherein one of the coupling section (14) and the complementary coupling section (54) has a locking projection (47; 57), and the locking element (5) has a projection (87) complementary to the locking projection, wherein the projection (87) and the locking projection (47; 57) define a predetermined locking force for transferring the locking element (5) from the non-locking position to the locking position.

8. Flat connector (10) with locking element (5), comprising: - a coupling section (14) for positive coupling with a complementary coupling section (54) of a complementary flat connector (50), wherein the coupling section (14) has a receptacle (12) on which the locking element (5) is arranged at least section by section, -- wherein the coupling section (14) and the locking element (5) are designed to be complementary to each other such that in a decoupled state of the flat connector (1), in which the coupling section (14) and the complementary coupling section (54) are not coupled to each other, the locking element (5) is fixed in the non-locking position.

9. Locking element (5) for a flat connector system (1) according to any one of claims 1 to 7, comprising: - one or more projections (88) for positive locking attachment of the locking element (5) to a receptacle (12) of the coupling section (14) or the complementary coupling section (54) of the flat connector system (1); - a locking section (81) configured to secure a positive locking coupling of the coupling section (14) and the complementary coupling section (54); and - one or more latch projections (82) configured to engage with a latch (45) of the receptacle (12) to block the locking element (5) from being moved into a locking position on the receptacle (12).

10. Method for securing a positive-locking coupling between a flat connector (10) and a complementary flat connector (50), wherein the flat connector (10) has a coupling section (14) and the complementary flat connector (50) has a complementary coupling section (54) which can be positively coupled to the coupling section (14), wherein the method comprises the steps of: - arranging a locking element (5) on a receptacle (12) of the coupling section (14) and the complementary coupling section (54);and - transferring the locking element (5) from a non-locking position to a locking position on the receptacle (12), wherein the locking element (5) is configured to provide a locked state of coupling between the coupling section (14) and the complementary coupling section (54) in the locking position, in which a release of the positive locking coupling between coupling section (14) and complementary coupling section (54) is prevented, -- wherein the coupling section (14), the complementary coupling section (54) and the locking element (5) are configured to be complementary to each other such that in a decoupled state, in which the coupling section (14) and the complementary coupling section (54) are not coupled to each other, the locking element (5) is fixed in the non-locking position.; 11. Method according to claim 10, wherein the step of arranging the locking element (5) comprises a positive-locking arrangement of the locking element (5) on the receptacle (12); and / or wherein the step of moving the locking element (5) into the locking position comprises applying a predetermined locking force to move the locking element (5) into the locking position.

12. Method according to claim 10 or 11, wherein the receptacle (12) comprises a latch (45) and the locking element (5) comprises a latch projection (82), wherein, if a step of positive locking coupling of the coupling section (14) with the complementary coupling section (54) is performed before the locking element (5) is moved into the locking position, the locking element (5) is moveable into the locking position, and if a step of positive locking coupling of the coupling section (14) with the complementary coupling section (54) is not performed before the locking element (5) is moved into the locking position, the latch projection (82) is engaged with the latch (45) such that the locking element (5) is fixed in the non-locking position.

13. Method according to any one of claims 10 to 12, wherein the step of transferring the locking element (5) into the locking position comprises moving the locking element (5) substantially in the insertion direction, and / or wherein one of the coupling section (14) and the complementary coupling section (54) comprises a locking projection (47; 57) and the locking element (5) comprises a projection (87) complementary to the locking projection (47; 57), wherein the locking projection (47; 57) and the complementary projection (87) of the locking element (5) define a predetermined release force in the locked state, which is required to transfer the locking element (5) from the locking position to a non-locking position.

Images