Connection system for an electrical cable

Abstract

The invention relates to a connection system for a cable, comprising: a component (20) for connecting to a cable (2), the component (20) comprising a plurality of contact means (28) for making contact with a conductor (4) of the cable (2), the contact means (28) being electrically conductive; the invention relates to a cable (2) for electrical power, in which conductors (4) are accessible for contact with a contact mechanism (28), in which the conductors (4) are electrically conductive, and in which the conductors (4) each have an exposed conductor cross-section (5).

Description

Technical Field

[0001] The invention relates to a connection system. In addition, the invention also relates to a cable and a method. Background Art

[0002] It is known from the prior art that cables are preassembled during the installation of electrical systems or are simply assembled on site to the required length. However, the use of preassembled cables is inflexible and may be limited by the availability of the corresponding cables. On the other hand, on-site assembly is more flexible but is usually a time-consuming process.

[0003] To assemble the cable, the cable may be first stripped of its outer sheath and crimped before being connected to a plug connector. For example, using a crimping tool, the plug connector is securely connected to the conductor of the cable by applying pressure and deformation. A stripping tool may also be used to cut off the outer insulation of a cable without damaging the conductor underneath.

[0004] Furthermore, it is known from the prior art that current Ethernet technology is often too complex and oversized for applications in the Industrial Internet of Things (IIoT). In particular, conventional plug connectors and cables are in many cases not well suited for use at field level. This makes the integration of sensors and other components more difficult, in particular due to wiring requirements and limited cable lengths. The simplified Ethernet standard, Single Pair Ethernet (SPE), has provided a solution by combining long cable lengths, compact design and robust cabling.

[0005] However, conventional solutions remain very expensive to always provide the correct cable length in the field. Summary of the invention

[0006] The object of the present invention is therefore to at least partially eliminate the above-mentioned disadvantages. In particular, the object of the present invention is to further simplify the installation technology and to provide the right cable for the application in an improved manner. In particular, an improved, more flexible and / or simpler connection technology is to be provided, which can be used on site.

[0007] The object of the invention is a connection system and a cable. Other features and details of the invention are apparent from the description and the drawings. Features and details described in connection with the connection system according to the invention naturally also apply to the cable according to the invention and the method according to the invention, and vice versa, so that with regard to the disclosure, reference can always be made to each other in respect of the various aspects of the invention.

[0008] The object of the invention is a connection system, preferably for a cable, in particular for establishing a connection between a cable and a component. Thus, the connection system can comprise a component and a cable, and optionally further elements, such as a guide. The cable can be designed as an electrical cable and the component can be designed as an electrical component. Alternatively or in addition, the cable and the component can also be designed to conduct other media, such as liquids or air.

[0009] The component can be used for connection to a cable. For example, the component is a plug connector or an actuator or a sensor or a module, such as a fieldbus module. The component can include one or more contact mechanisms for making contact with the associated conductors of the cable. In other words, if the cable has multiple conductors, these conductors can be assigned to a contact mechanism in each case so that each conductor is connected to a contact mechanism. For example, the assignment or association can be determined according to a predetermined (electrical) assignment. If the component is designed as an electrical component, the contact mechanism is conductive. If the cable is designed as a cable, the conductor can be designed to be conductive.

[0010] The cable can be designed such that a respective conductor of the cable is available for contacting with an associated contact mechanism. In particular, this means that the respective conductor is accessible from the outside (i.e. outside the cable), in particular it can be electrically contacted from the outside without further measures, such as stripping. This can be achieved by the fact that the respective conductor (for contacting) has an exposed conductor cross section. In the case of a plurality of conductors of the cable, a plurality of exposed conductor cross sections of these conductors can therefore be accessible on one contact surface of the cable.

[0011] The connection system can also be designed to make contact between the corresponding contact mechanism and the associated conductor in the axial direction of the cable or conductor. In other words, the connection system can be particularly designed so that contact can be made by relative movement of the corresponding contact mechanism and the associated conductor parallel to the axial direction of the cable or conductor. In addition, in this way, the corresponding contact mechanism can be directly electrically connected to the exposed conductor cross section of the associated conductor, for example, piercing the conductor cross section. This has the advantage that the connection can be made more easily and with less effort. This also has the advantage that the cable can be simply cut to the required length and connected, thereby eliminating the need for more complex cable components.

[0012] It is conceivable that the corresponding contact means are electrically connected to the conductor to be contacted by piercing the exposed conductor cross section of the conductor to be contacted (ie the associated conductor). Such "piercing" enables the electrical connection to be established quickly and reliably.

[0013] In another possibility, it can be provided that the corresponding contact means has a pointed end and / or is needle-shaped. This makes it possible to contact the conductor or conductors by piercing the contact means onto and / or through the conductor in the axial direction of the conductor at and / or through the exposed conductor cross section of the conductor.

[0014] Preferably, within the scope of the invention, it can be provided that the conductor or conductors are each formed as a strand. The respective strand can have a flexible single wire in order to conductively surround the contact means piercing the respective conductor cross section. Thus, each conductor can have a plurality of single wires, whereby the respective contact means can be surrounded by the single wire of the conductor pierced therein. This makes piercing easier, since the conductor is more easily penetrated due to the flexible single wire. In addition, an electrical connection can be made more reliably.

[0015] It is also advantageous if the respective contact means are designed to be inserted, preferably pierced, into the conductor at and / or through the exposed conductor cross section of the contact (associated) conductor. In other words, each contact means can be inserted into the conductor cross section provided for this purpose. In addition, the respective conductor can be at least partially surrounded by the insulating sheath through its (respective) exposed conductor cross section and the (respective) inserted, preferably pierced contact means. Therefore, in order to make a connection, it is not necessary to strip the conductor, i.e. remove the insulating sheath. This simplifies and speeds up the installation of the cable.

[0016] Within the scope of the invention, it is also conceivable to provide a contact surface on the cable, at which the conductor or conductors can be used to contact the contact mechanism. The contact surface can be located in the cutting plane of the cable. In other words, the contact surface can be located at the plane of the cutting cable. At the contact surface or the cutting plane, the conductor or conductors can be adjacent to the interior of the cable or protrude outwardly from the interior of the cable and can be seen from the outside of the cable. Furthermore, the conductor or conductors preferably protrude from the contact surface or are located in a recessed position in the cable. It is also conceivable that the corresponding exposed conductor cross section is also located in the cutting plane. This provides a structure that is easy to connect and allows the cable itself to be designed as a plug or socket.

[0017] Further advantages can be achieved within the scope of the invention if the respective conductor forms a wire with the surrounding insulating sheath, the resulting wire or wires can protrude from the contact surface. Furthermore, the respective protruding wire can be only partially surrounded by the cable sheath of the cable or can be at least partially released from the cable sheath of the cable. It is also possible for the respective protruding conductor and / or the respective exposed conductor cross section to be completely or partially surrounded by the insulating sheath. In this case, the contact surface can be formed by a cut surface of the cable sheath of the cable. Since only a part of the cable sheath is removed, and not each individual insulating sheath of the conductor, the amount of work involved can be significantly reduced.

[0018] The connection between the component and the cable can be made directly at the contact surface, in particular at the cut surface of the cable. The contact surface can designate a surface, in particular a cross section through the cable, at which surface or cross section the corresponding conductor of the cable can be approached from the outside to come into contact with the contact mechanism of the component. The surface can be arranged perpendicular to the axial direction of the cable. The corresponding conductor of the cable can directly adjoin the outer area of ​​the cable at the contact surface and can thus be connected to the contact mechanism of the component without cutting the sheath and / or the insulation layer of the cable. The corresponding conductor can also be separated at the contact surface in alignment with the contact surface. The cable can be designed to provide such a contact surface after the cable has been cut to size.

[0019] The cable can be formed in such a way, preferably after cutting the cable to size, that the corresponding conductor of the cable is accessible for contacting with the associated contact means. In particular, this means that the corresponding conductor is accessible from the outside (i.e. outside the cable), in particular it can be electrically contacted from the outside without further measures, such as stripping. This can be achieved by the fact that the corresponding conductor (for contacting) has an exposed conductor cross section, in particular after cutting the cable to size. Alternatively or additionally, the cable can also have contact surfaces and / or accessible conductors in its original state (e.g. delivered without being cut to size).

[0020] The cable after cutting can have a plug structure, in particular a plug structure provided by a coding and / or connecting structure. In other words, the cable can be designed to have an insertion structure on the cut surface even after the cable has been cut to length. This has the advantage that the cable can be directly connected to the component after the cable has been cut to the required length. This can be achieved by the fact that the insertion structure is provided continuously or repeatedly along the cable in the axial direction. Therefore, after cutting, the cut cable can already have the necessary structure on its cut surface to enable direct connection of the component.

[0021] It is also conceivable within the scope of the invention to provide (at least) one contact surface on the cable, at which the corresponding conductor can be used to contact the associated contact means, and preferably to provide the coding at this contact surface. The contact surface can be located in the cutting plane of the cable. In other words, the contact surface can be located at the plane of the cutting cable.

[0022] The cable can be designed to have a contact surface, preferably with coding, on the cut surface after cutting. The conductor or conductors can be adjacent to the interior of the cable at the contact surface or cutting plane or protrude outwardly from the interior of the cable and can be seen from the outside of the cable. Furthermore, the corresponding conductor preferably protrudes from the contact surface or is located in a recessed position in the cable. It is also conceivable that the corresponding exposed conductor cross section is also located in the cutting plane. This provides a structure that is easy to connect and allows the cable itself to be designed as a plug or socket.

[0023] Further advantages can be achieved within the scope of the invention if the geometrical contour, in particular the spatial shape and / or the profile, extends in the axial direction of the cable. The profile can define a guide cavity for a guide mechanism and preferably for a guide pin of a component in order to mechanically guide the contact in the axial direction of the cable. This can be used to guide the contact mechanism or the insertion of the contact mechanism into the conductor in the axial direction of the cable or conductor, thereby further simplifying the making of the contact and avoiding errors in the contact. Furthermore, the guide cavity can be particularly preferably designed for the transmission of a fluid, in particular for a transmission medium, such as air or a liquid.

[0024] Preferably, provision can be made for the connection system to have a guiding device. The guiding device can be designed separately from the cable and the component. The guiding device can optionally be movably connected to the cable and / or the component, for example by means of a belt or a ring. Alternatively, the guiding device can also be formed as a (e.g. integral) part of the cable or the component. In general, the guiding device can be designed to mechanically guide the contact in the axial direction of the cable or the corresponding conductor, and preferably guide the conductor, in particular the wire, and / or the contact mechanism so that the contact is made in the axial direction of the cable. The guiding device is thus a tool that simplifies the contact, for example, without stripping and / or crimping.

[0025] For example, it can be provided that the guide device has a guide housing, which has a guide structure, preferably in the form of an opening in the guide housing, so as to provide mechanical guidance for the corresponding conductor, in particular a wire, and / or a contact mechanism. The guide structure for holding the conductor, in particular a conductor, can be formed on one (first) side of the guide housing. On the other (second) side of the guide housing, preferably opposite to the guide device (first side) in the axial direction and / or away from the guide device, the guide structure can be designed to accommodate the contact mechanism. This can be used to provide contact in the inner space of the guide housing of the guide device, and / or mechanically guide the contact mechanism to be inserted into the conductor in the axial direction of the cable or conductor for contact. This makes the connection easier and safer. If contact is provided inside the guide device, mechanical protection and / or sealing can also be provided.

[0026] Alternatively, the conductor(s) can each form a wire with a surrounding insulating sheath, whereby the wire is color-coded, in particular by different colors of the insulating sheath. A corresponding coding can be provided on the guide device so that the openings of the guide structure and preferably the guide housing are assigned to the corresponding conductor by color, for example by applying the same color to indicate the openings associated with the conductor. This allows a safer and more reliable assignment of the conductors to the components.

[0027] Further advantages can be achieved within the scope of the invention if at least one coding is spatially formed on the cable and / or the guide device to specify a specific arrangement and allocation of the contact means of the component to the electrical conductors of the cable. For example, it may be that the conductor has a specific function and must therefore be correctly allocated to the contact means. For example, the allocation can be provided by color coding, but alternatively or additionally, it can also be provided by mechanical coding. For example, the coding is formed on the cable itself, for example by a specially shaped cavity. It is also conceivable that the guide device has a coding. For this purpose, for example, the guide device is designed as a grommet, which can be subsequently attached to the cable.

[0028] At least one coding may comprise a mechanical and / or geometric coding of the cable and / or the guide, wherein a geometric profile, in particular a spatial shape and / or an outline, extends in the axial direction of the cable and / or the guide. Preferably, the outline may define a guide cavity for the guide and preferably a guide pin for the component, so as to predetermine a specific orientation of the component for the connection. This may further enable blocking of the connection of the component in the event of a deviation from a specific orientation, for example by the housing of the guide or by a portion of the cable.

[0029] Furthermore, at least one coding can in particular comprise a geometric and / or extruded profile of the cable and / or the guide device, in particular in the form of a grommet and / or a tube, wherein at least one coding in particular additionally comprises an electrical coding and / or a color coding, wherein a systematic arrangement of the electrical conductors of the cable is provided in order to provide a specific assignment of electrical contact means to the connection of predetermined components.

[0030] At least one coding can be formed by a non-rotationally symmetrical cross-section of the cable, in particular by a non-rotationally symmetrical inner and / or outer contour of the cable. This can ensure that the cable can only be electrically connected to the component at a position corresponding to a clear assignment of the contact mechanism to the electrical conductor of the cable. The non-rotationally symmetrical outer contour can be formed by a cable jacket or periphery of the cable, preferably the cable has a cross-section with a circular basic shape and at least one recess, in particular a groove, and / or at least one protrusion, in particular a flange. Preferably, the recess or protrusion, in particular the flange, is a coding. Alternatively, the outer contour can be a free form or a polygonal shape. The inner contour can be formed by a circular fluid line, which forms a coding due to its position and / or shape in the cross-section of the cable. Alternatively, the fluid line can have a free form or a polygonal shape. Due to the coding, the component with the coding can be regarded as a key, and the component with a matching corresponding coding can be regarded as a lock. This can ensure the expected specific contact between the conductor and the contact mechanism.

[0031] Particularly preferably, the guide chamber can be designed to convey a fluid, in particular a medium, such as air or a liquid.

[0032] Furthermore, provision can be made for the conductors of the cable to be each formed as a strand in order to form a receptacle for a contact means of an insertion component, preferably for piercing a contact means in the form of a contact tip into the strand in the axial direction of the cable.

[0033] The guide means can be arranged between the cable and the component in order to guide the insertion and preferably the piercing with a predetermined arrangement and distribution of the contact means of the component and the conductors of the cable, in particular to guide them linearly. A complementary corresponding coding of the component can be provided for the coding on the cable and / or the guide means in order to predetermine the guidance and preferably the orientation of the cable relative to the component.

[0034] It is also advantageous if the component and / or the guide device is in direct contact with the contact surface in the connected state, whereby the contact mechanism of the component contacts the conductor of the cable and preferably engages therein, preferably penetrates therein. In the connected state, a part of the component and / or the guide device can seal the contact surface and / or mechanically lock the contact surface and / or provide anti-twist protection. For this purpose, for example, a protruding housing part or a sealing device or the like is provided on the component or the guide device.

[0035] The electrical conductor can preferably extend only and / or directly to and / or abut one or more contact surfaces of the cable, preferably so that contact means, in particular in the form of contact tips and / or piercing means, can be pierced into the electrical conductor at the contact surfaces, wherein the contact surfaces preferably extend transversely, in particular perpendicularly to the direction of extension of the cable, and wherein in particular the contact surfaces can form a cutting surface of the cable, at which the cable has preferably already been shortened to the desired length, and / or a cable end of the cable. Preferably, the contact surface can be formed by cutting at any point along the extension of the cable, in particular if the coding extends along the entire length of the cable. Preferably, the contact means is designed such that the electrical conductor of the cable can be pierced only by the contact means, in particular without cutting.

[0036] The electrical conductors of the cable can be twisted together, in particular in the form of one or more paired strands, three strands or four strands, wherein at least one coding has a continuous direction along the length of the cable and has a direction that matches the twisting, so that at any point of the cable along the length of the cable, at least one coding and the electrical conductor can have the same relative position, in particular in a plane transverse to, preferably perpendicular to, the direction in which the cable extends. In other words, the coding on the cable sheath can have a continuous spiral direction along the direction in which the cable extends, preferably with a constant pitch, which is particularly matched with the twisting. The coding can be in the form of a depression, in particular a notch or groove, or a protrusion, in particular a shoulder or flange. Twisting can reduce electromagnetic interference. By twisting the conductor, the induced electromagnetic fields largely cancel each other out, thereby reducing the sensitivity to interference. However, this changes the position of the conductor along the length of the cable, making contact between the contact mechanism of the component and the conductor of the cable more difficult. By means of the coding and a defined constant relative position of the coding with respect to the conductors along the cable, this problem can be solved and the intended contact between the contact mechanism of the component and the corresponding conductor of the cable can be made at any point of the cable, since the coding can have a continuous course matching the twist. The various twists can be spaced apart and / or evenly distributed in the cross section of the cable. If the cable has a fluid line, the twist is preferably evenly arranged around the fluid line, preferably in order to achieve even cooling of the conductors or strands.

[0037] The cable can have a fluid line, in particular a liquid line or a gas line, wherein in particular at least one coding can be formed partially or only by the fluid line, wherein the electrical conductor, in particular twisted, surrounds the fluid line along the extension of the cable in order to preferably ensure uniform cooling of the conductor by a fluid that can be conducted through the fluid line, wherein the component can have a fluid channel, which can be connected to the fluid line of the cable in a fluid-transmitting manner and can in particular partially or only form the corresponding coding. Preferably, the fluid duct contributes to the coding by the shape of its cross section, in particular transversely or perpendicularly to the direction of extension of the cable, and / or by its position within the cross section of the cable, in particular transversely or perpendicularly to the direction of extension of the cable. Contributing to the coding can mean, for example, that the geometry of the cable jacket or the outer contour of the cable also contributes to the coding. In other words, the geometry of the cable jacket or the outer contour of the cable together with the fluid line, in particular the shape and / or the position of the fluid line, can form the coding. Alternatively, preferably, only the fluid line is coded by the shape of its cross section, in particular transversely or perpendicularly to the direction in which the cable extends, and / or by its position within the cable cross section, in particular transversely or perpendicularly to the direction in which the cable extends.

[0038] The cable can have a strain relief profile along its extension on the circumference, preferably at regular intervals from one another, particularly preferably in the form of circumferential depressions, particularly grooves or indentations, or protrusions, particularly flanges or steps, preferably for a heat shrink tube or strain relief device, and wherein the component can have a strain relief device, particularly a heat shrink tube designed as a strain relief device, which is preferably attached to the component, for the cable, which cooperates with the strain relief profile of the cable so that the cable is strain-relieved, particularly by the strain relief device forming a form fit with the strain relief profile of the cable, preferably by the strain relief device snapping behind the strain relief profile or snapping into the strain relief profile. Preferably, the strain relief device is designed such that the strain relief device pre-tensions the cable against the component, preferably in the extension direction of the cable and / or in the contact direction. Furthermore, it can be preferred that the strain relief device is designed to snap into a depression or snap behind a protrusion, particularly as seen from the component. In other words, the strain relief device can snap behind a protrusion. Furthermore, the strain relief device can comprise a clamping arm for snapping in or snapping behind. The strain relief device may be made of plastic and / or formed integrally with the component. The strain relief device may also be adjustable so that the preload of the cable against the component may be adjusted. The preload may be adjustable in steps or continuously. Preferably, the strain relief device may be designed such that it forms a strain-relieved connection with the strain relief profile during the contact movement to establish the electrical connection between the cable and the component.

[0039] The plurality of contact means, in particular the design and / or arrangement and / or dimensions of the plurality of contact means, can be designed for the electrical conductors, in particular the dimensions and / or course of the electrical conductors and / or the arrangement of the electrical conductors on the contact surface, so that electrical contacting of the plurality of electrical conductors by only one contact means is excluded, in particular by one contact means electrically contacting a first electrical conductor in the contact surface and electrically contacting another electrical conductor behind or beside the first electrical conductor in the extension direction of the cable, preferably due to the twisting of the electrical conductors. In this way, incorrect contacting, i.e. accidental contacting of a plurality of conductors by a single contact means, is avoided.

[0040] The contact mechanism can electrically lead to the electrical contact conductor of the plug assembly or the socket assembly of the component, whereby the position and / or arrangement and / or distribution and / or size of the electrical contact conductor is different from the position and / or arrangement and / or distribution and / or size of the contact mechanism, in particular on the contact surface. Preferably, a plug with such a plug assembly or a socket with such a socket assembly can be formed on the component. The guiding direction of the contact conductor from the contact mechanism to the plug or socket is preferably not straight, but angled at at least one point of the direction, preferably vertical, or curved, whereby the plug or socket is formed on the side of the component, which extends transversely or perpendicularly to the insertion direction or contact direction of the cable. The plug can be designed to establish an electrical connection and / or a form-fitting connection with the socket. The socket can be designed to establish an electrical connection and / or a form-fitting connection with the plug. Alternatively, the plug or socket can be formed on the side of the component, which side faces away from the side of the component, on which the cable can be electrically contacted with the contact mechanism. In addition, the guiding course of the contact conductors from the contact mechanism to the plug or socket is designed so that the arrangement and / or distribution of the electrical conductors of the plug or socket is different from the arrangement and / or distribution of the contact mechanism. For example, an electrical connection can be made from a small cable cross section of a cable to a large plug assembly or socket assembly. Preferably, at least two contact conductors of the socket assembly or plug assembly are at a distance from each other that is greater than the distance between the electrical conductors of the cable in the cable cross section.

[0041] Preferably, an electrical connection can be established between the cable and the component, in particular by piercing the contact means into the associated conductor, the connection system comprising a seal, in particular a material-fit and / or force-fit and / or form-fit seal, which seals the connection, in particular seals the cable section adjacent to the connection system from the influence of the environment of the connection system, in particular according to IP20 or IP67, which seals the connection, in particular seals the cable section adjacent to the connection system from the influence of the environment of the connection system, in particular according to IP20 or IP67, wherein the seal can preferably, in particular in the case of a form-fit seal, be formed by a heat shrink tubing or a heat shrink tubing forming a strain relief device.

[0042] The seal can preferably be formed by a sealing compound, in particular an adhesive or a potting compound, whereby, in particular in the extension direction of the cable and / or perpendicularly to the extension direction of the cable, a sealing cavity for accommodating the sealing compound can be formed between the cable, in particular the contact surface of the cable, and the component, the sealing compound being located therein and preferably completely filling the sealing cavity, wherein the sealing cavity preferably has a filling opening for the sealing compound, which is in particular closed by the sealing compound, wherein the sealing cavity preferably has an outlet for the sealing compound, which is in particular closed by the sealing compound, wherein in particular the part of the component defining the sealing cavity can be formed by a transparent material so that the extent to which the sealing cavity is filled with the sealing compound can be determined optically. The sealing compound can be filled into the sealing cavity in a liquid state through the filling opening. Through the outlet, the excess sealing compound filled can escape from the sealing cavity in a liquid state, so that it can be determined whether the sealing compound has been evenly distributed in the sealing cavity. The sealing compound is preferably curable and / or electrically insulating. Closing the opening with the sealing compound prevents foreign matter or moisture from entering the sealing cavity.

[0043] The seal can be formed by releasing the filling of microcapsules, in particular microcapsules of the cable or component. The filling of the microcapsules can preferably be released by supplying heat, radiation, in particular light supply, preferably in the form of ultraviolet light, contact with an activating substance or a combination of light supply and moisture.

[0044] The seal can seal and / or electrically insulate the transition from the fluid line to the fluid channel in a fluid-tight manner, which transition can be formed by the conductor contacting the contact means on the contact surface, and / or thereby seal electrically insulate and / or seal contact points, which can be formed by the conductor contacting the contact means on the contact surface, from each other. In this way, leakage or failure of the fluid is prevented.

[0045] The cable can be attached to the component by a force-fit connection and / or a form-fit connection and / or a material-fit connection. A strain relief device can also be provided and / or dimensioned and / or designed for this purpose.

[0046] The connection system may comprise an insertion mechanism, in particular a screw mechanism, a lever mechanism or a plug mechanism, to perform the contact movement, the insertion mechanism preferably being designed to move the cable towards the component during the contact movement, the connection system or the insertion mechanism preferably comprising an adjustment mechanism to adjust a predetermined penetration depth of the contact mechanism into the conductor at the insertion mechanism, preferably depending on the cable type of the cable and / or continuously and / or in a plurality of predetermined steps, wherein the connection system or the insertion mechanism preferably comprises an index or indexing mechanism, which is suitable for indexing the current penetration depth for a user during the contact movement.

[0047] Preferably, the screw mechanism is designed as a union nut or comprises a union nut, which establishes the electrical connection when screwed onto the component. The lever of the lever mechanism can preferably be mounted on the component. Actuating the lever can cause the contact movement. Preferably, the component comprises a thread, such as an M8 or M12 thread, preferably as an external thread, and the union nut comprises a matching thread, preferably an internal thread.

[0048] For example, the insertion mechanism may comprise a clamp. The insertion mechanism or the clamp may be part of the component, attached to the component or separate from the component. The clamp may clamp the cable or the cable end, preferably by the cable or the cable end being clamped or held by the clamp. Preferably, the clamp interacts for this purpose with a strain relief profile and / or a coding of the cable, preferably by the clamp being clamped behind a protrusion or engaging in a recess. Preferably, the clamp has a coping coding. In other words, the cable can only be clamped by the clamp in the intended orientation in order to establish the intended electrical connection between the cable and the component, in particular between the electrical conductors of the cable and the contact means of the component.

[0049] Preferably, the insertion mechanism can be used not only to establish an electrical connection, but also to establish a sealing element, in particular an elastomeric seal on the component. The seal can be arranged so that it is in physical contact with the contact surface when the electrical connection is made. The seal can be produced by a multi-component injection molding process during the manufacturing process of the component. The seal can seal the transition and / or fluid conduit and / or fluid channel starting from the contact point, between the electrical conductor and the contact mechanism, and / or seal the contact surface from the influence of the environment of the connection system. By means of the insertion mechanism, a cable held and / or holdable by a clamp can be moved toward the component, preferably to establish an electrical connection between the cable and the component, in particular an electrical connection between the electrical conductor of the cable and the contact mechanism. The insertion mechanism can be designed so that the contact mechanism can only be contacted by piercing the electrical conductor of the cable at the contact surface.

[0050] The index can be designed as a scale or as an acoustic and / or tactile feedback for the user. For example, the locking noise of the locking mechanism due to the contact movement can trigger such an acoustic feedback. It is also conceivable that the engagement of one or more locking mechanisms during the contact movement produces a tactile feedback. For this purpose, the scale can be formed on the component, while preferably, the insertion mechanism, in particular a screw mechanism, a lever mechanism or a plug mechanism, can serve as a pointer for the scale.

[0051] The adjustment mechanism can be designed as an adjustable movement limiter of the insertion mechanism, in particular a screw mechanism, a lever mechanism or a plug mechanism, which preferably limits the maximum penetration depth or maximum insertion depth of the contact mechanism into the conductor. For example, the adjustment mechanism can be adjusted by a screw or a union nut and / or a rotational movement. Preferably, the insertion mechanism has a movement converter, which can be designed so that an actuation movement, in particular a push movement or a rotational movement or a pivoting movement, is converted or can be converted into a contact movement.

[0052] The guiding device as described above with further details is also protected.

[0053] Another object of the invention is a cable for connection to a component, the cable having one or more electrical conductors, each of which has an exposed conductor cross section for contacting them with a contact mechanism of the component. In addition, the cable can be designed to provide contact with the conductor and the contact mechanism moving parallel to each other (relatively) in the axial direction of the cable so as to electrically connect the contact mechanism directly to the exposed conductor cross section. Therefore, the cable according to the invention has the same advantages as those described in detail with reference to the connection system according to the invention. In addition, the cable can be designed according to the connection system according to the invention.

[0054] Another object of the present invention is a method for producing a connection between a cable and a component. According to the method steps, a connection system comprising a cable and a component can be provided. The cable can have one or more electrical conductors. The corresponding conductor cross section of the conductor can be exposed and accessible from the outside. The component can also include one or more contact mechanisms for contacting the conductor of the cable. According to another method step, the contact mechanism can be inserted into the conductor through the exposed conductor cross section in the axial direction of the cable so as to establish contact between the contact mechanism and the conductor. Therefore, the method according to the present invention has the same advantages as those described in detail with reference to the connection system according to the present invention. The connection system according to the present invention can also be used in the method according to the present invention. In addition, it is optionally provided that the conductors each form a wire with the surrounding insulating sheath, wherein the cable is provided by cutting the cable into the desired length without stripping the insulation layer from the conductor or the wire, and wherein the insertion of the contact mechanism is performed without first stripping the insulation layer from the conductor.

[0055] The cable can also be designed as a power cable or a data cable or a hybrid cable. As a hybrid cable, for example, a single cable can be used for energy transmission and data transmission. For example, one or more data lines and one or more power lines are provided for this purpose. The corresponding data line and / or energy line can have an electrical conductor, which is surrounded by a sheath, in particular an insulating sheath or a shielding layer. The shielding layer can be made of a conductive material, for example for shielding electromagnetic interference. Materials such as copper or aluminum can be used here. On the other hand, the insulating sheath can be made of an electrically insulating material. Materials such as ceramics, glass or plastic can be used here. The corresponding data line can be designed as an electrical data line or an optical data line, and is preferably designed as a fieldbus and / or Ethernet line.

[0056] The cables and / or components and / or connection systems may be designed for single-pair Ethernet (SPE). Compared to conventional Ethernet (which typically has four pairs of wires or conductors per cable), SPE reduces the need for cables, thereby achieving a compact and cost-effective connection. Such cables preferably have only one pair of wires or only one pair of conductors.

[0057] The cable may preferably comprise only one pair of wires or conductors.

[0058] The cable may preferably comprise twisted pairs of wires or conductors. A single wire or conductor pair may be designed to transmit data as well as current or voltage, preferably over a distance of up to 1000 meters and / or at a maximum data transmission speed of 10 Mbit / s, 100 Mbit / s or 1 Gbit / s. In addition, the cable may be designed to supply a current or voltage to a terminal device according to Power over Power Line (PoDL) and to transmit data simultaneously. Preferably, the cable and / or the component and / or the connection system may be used or suitable for use in Industry 4.0, Internet of Things (IoT), automotive industry or building automation applications. The conductor pair or wire pair preferably comprises or consists of copper or a copper alloy. Preferably, the cable corresponds to a single-pair Ethernet cable according to IEEE 802.3bw, preferably within the validity period of the standard on September 27, 2024, in particular in the Federal Republic of Germany. Preferably, the cable may be designed for full-duplex communication.

[0059] The component can preferably be a single-pair Ethernet plug connector (SPE plug connector), in particular according to the IEC 63171 standard, preferably according to the status of September 27, 2024, in particular in force in the Federal Republic of Germany. Particularly preferably, the component can be designed as a plug connector or a round plug connector with an M8 or M12 thread. The plug assembly or socket assembly of such a plug connector can have a thread for fastening, in particular to an electrical device or a sensor. In addition, the cable and / or the component and / or the connection system can be designed to transmit a maximum power of 50 or 60 watts.

[0060] Unless otherwise stated, it is preferred that the conductors are conductors of a cable. In other words, they may preferably only be conductors of a plug assembly or a socket assembly if it is explicitly stated that they are conductors of a plug assembly or a socket assembly.

[0061] In principle, the two interacting codes can be referred to as encoding and coping coding.

[0062] Furthermore, provision may be made for repeated markings to be provided which indicate the penetration depth of the electrical contact means, preferably in the form of a piercing means. For example, the markings may be arranged on the outside of the cable sheath, for example printed thereon. The markings may be repeated at fixed intervals in the longitudinal direction of the cable so that after cutting the cable, starting from the cut surface, an indication is obtained indicating the depth to which the contact means have been correctly inserted. This makes the connection simpler and more reliable. The markings may also help determine the direction of the cable connection.

[0063] The connection system according to the invention may have a strain relief which ensures that the connection between the cable and the component cannot be accidentally disconnected, in particular that the component cannot be accidentally pulled out of the cable. The strain relief may be provided by a mechanical locking mechanism which, when the connection is made, cuts into the cable jacket of the cable with a form fit and / or provides a force fit clamping with the cable jacket and / or the conductor of the cable. This securely fixes the cable to the component and prevents accidental disconnection. Thus, a strain relief may be provided as a function or device of the connection system for fixing and protecting the cable with the component and preventing the cable connection from being damaged due to tensile loads.

[0064] If the connection needs to be released again, this can be done using an unlocking mechanism, preferably without tools. The connection technology required for this on the component side can, for example, be integrated directly on the printed circuit board of the component or in the plug of the component. The tool-free unlocking mechanism can also be actuated by a simple manual operation, which further simplifies the handling of the component. To this end, the tool-free unlocking mechanism can, for example, have an unlocking tab or an unlocking button, which is formed on the housing of the component to enable easy tool-free unlocking. The locking mechanism can be implemented by a locking device, which is activated by rotating or pressing a specific area of ​​the component. The locking device can have one or more locking lugs, which engage into corresponding recesses or cutouts. The unlocking mechanism can then be implemented by an unlocking button or an unlocking lever, which releases the locking device and releases the connection by simple actuation. Alternatively, the release mechanism can be implemented by a strain relief device, which is released by simply twisting or pressing a specific point of the cable or component. This releases the connection and the cable can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Other advantages, features and details of the invention are apparent from the following description, in which embodiments of the invention are described in detail with reference to the attached drawings.The features mentioned in the description may be essential to the invention individually or in any combination.

[0066] The attached figure shows:

[0067] Figure 1 Variations of cables and components according to embodiments of the present invention, each in cross-sectional view.

[0068] Figure 2 Component parts of a component according to an embodiment of the present invention, each of which is a cross-sectional view.

[0069] Figure 3 Various conductors of a cable according to an embodiment of the present invention are each shown in perspective view.

[0070] Figure 4 A perspective view of a contact surface or cutting surface of a cable according to an embodiment of the present invention.

[0071] Figure 5 A perspective view of the contact side of a component according to an embodiment of the invention.

[0072] Figure 6 A perspective view of components according to an embodiment of the present invention.

[0073] Figure 7 A perspective view of components according to an embodiment of the present invention.

[0074] Figure 8 A cross-sectional view of a cable and components connected to the cable according to an embodiment of the present invention.

[0075] Fig. 9 A perspective view of a contact surface or cutting surface of a cable according to an embodiment of the present invention.

[0076] Fig.10 A top view of a cable according to an embodiment of the present invention.

[0077] Fig.11 A method according to an embodiment of the present invention.

[0078] Fig.12 A perspective view of a guide device according to an embodiment of the invention.

[0079] Fig.13 A perspective view of a cable according to an embodiment of the present invention.

[0080] Fig.14 Another perspective view of a cable according to an embodiment of the present invention.

[0081] Fig.15 Schematic diagram of an insertion mechanism according to an embodiment of the present invention.

[0082] Fig.16 Another schematic diagram of components of an insertion mechanism according to an embodiment of the present invention.

[0083] Fig.17 Another schematic diagram of an embodiment of a connection system.

[0084] Fig.18a Another schematic diagram of an embodiment of a component.

[0085] Fig.18b Another schematic diagram of an embodiment of a component.

[0086] Fig.19a Another schematic illustration of an embodiment of a connection system having a seal.

[0087] Fig.19b Another schematic illustration of an embodiment of a connection system having a seal.

[0088] Fig.19c Another schematic illustration of an embodiment of a connection system having a seal.

[0089] Reference numerals list

[0090] 1 System, Connected Systems

[0091] 2 Cables

[0092] 4-core wire, twisted wire, conductor

[0093] 6 chambers

[0094] 7 Appearance

[0095] 8 Sheath, cable sheath

[0096] 9Contact surface, cutting surface

[0097] 10 Filling material

[0098] 12 Single Line

[0099] 14 Condensate seal

[0100] 20 Components

[0101] 22 Lock, Unlock

[0102] 24 thread screw connection

[0103] 26Guide, guide mechanism

[0104] 27 Response Code

[0105] 28 Contact mechanism, pin

[0106] 29 Safety contact mechanism

[0107] 30 Pin Tip

[0108] 40 Connector parts

[0109] 42 Printed Circuit Board

[0110] 44 Locking device, anti-twist protection, seal

[0111] 45 Locking pin

[0112] 50 Encoding

[0113] 51 First Code

[0114] 52 Second code

[0115] 60 Structure

[0116] 62 Depth Marker

[0117] 70 Guidance Device

[0118] 71 Boot structure

[0119] 72 Boot Shell

[0120] 76 First side

[0121] 77 Second side

[0122] 80 Insertion mechanism

[0123] 81 Pressure element

[0124] 82 Transmission device

[0125] 83 Indexing Agency, Index

[0126] 84 Adjustment mechanism

[0127] 85 Nut

[0128] 86 Thread

[0129] 87 Boot Space

[0130] 88 Holding element

[0131] 89 Anti-holding element

[0132] 90 penetration depth

[0133] 91 Starting position

[0134] 92 End position

[0135] 93 Itinerary

[0136] 100 Methods

[0137] 101 First process step

[0138] 102 Second process step

[0139] A Axial direction

[0140] 217 Cable end

[0141] 171 Strain relief device

[0142] 172 Strain relief profile

[0143] 180 Contact conductor

[0144] 181 plug, plug assembly

[0145] 191 Heat Shrink Tube

[0146] 193 Microcapsules

[0147] 194 Activated Matter

[0148] 195 Sealing Compound

[0149] 196 Packing opening

[0150] 197 Exit

[0151] 198 Sealed Chamber DETAILED DESCRIPTION

[0152] In the following figures, the same reference numerals are used for the same technical features even for different embodiments.

[0153] Figures 1 to 10 Embodiments of the invention are schematically illustrated. In particular, a variant of a cable 2 is shown, which is used to connect to an electrical component 20. To this end, the cable 2 can have at least one electrical conductor 4. Furthermore, a connection system 1 according to an embodiment of the invention is illustrated, which can include a cable 2 and a component 20. Section planes AA and GG are marked in the various views.

[0154] exist Figure 1 2, the cable 2 is in its fully electrically and mechanically connected state to the component 20. It can be seen that in this state, the contact mechanism 28 is inserted into the cable 20, in particular into the electrical conductor 4 of the cable 20, in order to establish a safe mechanical and electrical contact. It can be clearly seen here that the contact mechanism 28 has a tip 30 in order to pierce into the conductor 4. The component 20 is designed here as a plug connector, which may be provided with a threaded screw connection in the area 24 for attachment to a connection of a device such as a fieldbus module, an actuator or a sensor. This allows the cable 2 to be connected to the device in order to transmit electrical energy and / or data via the plug connector.

[0155] Compared with conventional solutions, the design of the cable 2 can significantly simplify the connection between the component 20 and the cable 2. To this end, a structure can be added to the cable 2, for example, at least one coding 50 is spatially formed on the cable 2. Figure 1 In FIG. 2 , it can be seen that the cable 2 has at least one cavity 6 for forming at least one coding 50 on the cable 2, such as Fig. 9 As further described in (for example, see Fig. 9 ). Such a coding 50 can also be provided on the component 20 and can in particular be referred to as a coping coding 27 if it is formed complementary to the coding 50 on the cable 2. The coding of the cavity 6 means that the correspondingly coping-coded pin 26, preferably the guide pin 26, can only be inserted into the cavity 6 as a guide mechanism 26 if the orientation of the component 20 relative to the cable 2 is correct (i.e. according to the lock and key principle). Otherwise, the pin 26 can be prevented from being inserted into the cavity 6 by other parts of the cable 2. This can then also prevent a connection from being established between the cable 2 and the component 20. Thus, the coding 50 on the cable 2 can specify a specific arrangement and assignment of the electrical contact means 28 of the component 20 to the electrical conductors 4 of the cable 2.

[0156] The at least one coding 50 may comprise a mechanical and / or geometric coding 50 of the cable 2, wherein the geometric profile 7 extends in the axial direction A of the cable 2. Figure 1 and Fig. 9 In the embodiment, the profile 7 can be provided by a T-shaped opening of the cavity 6 on the cable 2, and a corresponding T-shaped coding 27 can be provided on the component 20. The cavity 6 can also be designed to transmit a fluid, preferably a medium such as air or liquid. In addition to the T-coding, L-shaped or Y-shaped coding or other forms are also conceivable.

[0157] Figure 2 An embodiment of a component 20 in the form of a plug connector is shown, wherein a protruding wall 40 is provided for the connector component 40 (see also Figure 6 and Figure 7 ). For example, the wall 40 can be attached to the printed circuit board 42 of the component 20 to provide a locking device and / or anti-twist protection and / or a seal 44 on the cable 2. The wall 40 can optionally have a locking mechanism 22 to enable secure attachment to the cable 2.

[0158] Figure 3 and Figure 4 Further explanation, the cable can have a plurality of conductors 4 in the form of twisted strands, also referred to as stranded conductors. Each of these stranded conductors can have a plurality of thin strands 12, which can be Figure 4The cable 2 is surrounded by an identifiable insulating layer (insulating layer). For example, the insulation is made of a material such as polyethylene or polyvinyl chloride. It can be used to insulate the conductors 4 from each other and from the external environment. In addition, the insulating layer can usually be color-coded to make it easier to identify and route. In order to minimize electromagnetic interference, a shielding layer made of a metal mesh or a metal foil can be arranged around the insulated conductor 4 as a filling material 10. In addition, an additional inner sheath can be arranged around the shielding layer to increase the mechanical stability of the cable 2. In addition, the entire cable 2 can have a strong outer sheath 8, which is preferably made of a material such as PVC, PE or a thermoplastic elastomer and can have special properties, such as flame retardancy or oil resistance. This multilayer structure allows the cable 2 to have a high degree of flexibility and robustness, making it suitable for a wide range of applications.

[0159] In other optional designs of Cable 2, the conductors can be highly flexible and provide 360° full shielding. This full shielding serves to effectively shield against electromagnetic interference (EMC), thereby ensuring the integrity of data transmission. Other optional versions include an overmolded version of Cable 2, which has a highly durable PUR overmolding, which is specifically designed for use in harsh environments. The cables can be designed to be self-assembly, i.e. assembled on site (system site). In particular, this means that the cables themselves have structural adaptability, allowing them to be quickly and easily connected and disconnected, and to adapt to the required length. In this way, the cables can be quickly adjusted or replaced as needed, without the need for special tools or expertise.

[0160] For example, the electrical conductor 4 can be made of copper or aluminum. Other materials, such as gold, silver, carbon fiber, and conductive polymers, can also be used as components of the conductor 4, depending on the application. In addition, composite materials made from various elements of these elements can also be used in specialized applications to optimize specific properties, such as conductivity, weight, and corrosion resistance.

[0161] Furthermore, at least one coding 50 may include the geometry of the cable 2 and / or the pipe (not explicitly shown) and / or the grommet and / or the extrusion profile 7. The at least one coding 50 may further include an electrical coding 50 of the cable 2, wherein a systematic arrangement of the electrical conductors 4 of the cable 2 is provided in order to predetermine a specific assignment of the electrical contact means 28 of the component 20 for connection. Figure 5 In FIG. 5 , a corresponding coding 50 is illustrated, wherein the contact means 28 of the component 20 are arranged in a corresponding manner at different lateral distances.

[0162] exist Figure 1 , Figure 2 and Figures 5 to 8In FIG. 1 , a component 20 for connection to a cable 2 is schematically shown. The component may have at least one electrical contact mechanism 28 for making electrical contact with at least one electrical conductor 4 of the cable 2 in the axial direction A of the cable 2 or the conductor 4. The axial direction A or longitudinal direction of the cable 2 is Figure 1 In addition, at least one electrical contact means 28 can be designed to make electrical contact in the cable 2, ie in particular in the cable 2 or in the sheath 8.

[0163] Figure 6 and Figure 7 Further explanation, further structures such as locking and / or orientation structures 60 may be provided to further simplify proper alignment of component 20 relative to cable 2 during connection. For example, structure 60 is formed as a groove or material depression on component 20 and / or cable 2.

[0164] Figure 8 It is shown that the cavity 6 of the cable 2 can also be interrupted by a connecting part 14. This connecting part 14 can repeatedly interrupt the cavity 6 in the axial direction A of the cable 2. In particular, it serves as a seal for condensed water. This has the advantage that moisture is prevented from penetrating into the cable 2, thereby ensuring that it remains functional. Therefore, the connecting part 14 can also serve as a sealing element.

[0165] In addition, Figure 8 4 shows a locking pin 45 which can be provided on the contact mechanism 28 in order to fix the position on the cable 2 after the connection has been made. Stated more generally, a locking device 45 can be provided on the component 20 or the cable 2 in order to fix the established connection.

[0166] exist Figure 8 and Fig. 9 As further described in the above, the coding 50 may include a first coding 51, which is provided by the shape of the cavity 6. This refers in particular to Fig. 9 The shape of the opening of the cavity 6 with the contour 7 recognizable in the figure. Alternatively or additionally, a second coding 52 can be provided, which is provided by the arrangement and / or formation of the conductor 4. In particular, the coding can be provided here by the formation of the tip 30 of the strand 4 relative to the contact means 28, or conversely, the coding can be provided by the formation of the tip 30 of the contact means 28 relative to the strand 4. Due to the tip 30, the contact means 28 can be designed accordingly as a needle, which then during the connection (see Fig.13 ) penetrates the conductor cross section 5 of the conductor 4 to make contact. It is also possible to provide a guide with contact means 28 of different lengths, such as a guide for a safety contact means 29.

[0167] Figure 8It is further shown that the component 20 may include at least one contact means 28 in the form of a piercing means, which is designed to pierce into the electrical conductor 4 in the form of an electrical strand 4 in the axial direction A of the cable 2 or conductor 4. The bending of the individual wires of the strand 4 at the pin tip 30 separates them. Figure 8 Shown in.

[0168] exist Figure 1 In the figure, as further illustrated by dashed lines, at least one contact mechanism 28 can be designed as a safety contact mechanism 29, which is designed to be guided relative to at least one or all other contact mechanisms 28. This allows the safety contact mechanism 29 to contact one of the electrical conductors 4 of the cable 2 before at least one or another contact mechanism 28 when making a connection, i.e. during the contact movement.

[0169] Fig.10 It is shown that a repeating mark 62 can be provided on the cable 2 (e.g., every 5 mm), which indicates the penetration depth of the electrical contact mechanism 28, preferably in the form of a piercing mechanism. For example, the mark 62 can be printed thereon. For example, the mark 62 can be provided in the form of a line or a dot. The mark 62 can also be a mechanical mark, for example, which interacts with the insertion mechanism 80.

[0170] exist Fig.12 In FIG. 1 , according to another embodiment of the invention, a connection system 1 having a component 20 and a cable 2 can be seen. The component 20 can be provided to be connected to the cable 2. To this end, the component 20 can include a plurality of contact means 28 for making contact with the conductors 4 of the cable 2. In the illustrated cable 2, the conductors 4 can be approached from the outside to make contact with the contact means 28. Fig.12 In the embodiment, the conductor 4 is surrounded by an insulating sheath 11 and is therefore part of a wire 13, specifically a stranded wire 13 (see Fig.13 ). Here, both the contact means 28 and the conductor 4 are electrically conductive. Furthermore, the conductors 4 can each have an exposed conductor cross section 5 for contacting (see Fig.13 and Fig.14 ).

[0171] The connection system 1 can be designed to contact the contact means 28 with the conductor 4 in the axial direction A of the cable 2 or the conductor 4, so as to electrically connect the contact means 28 directly to the exposed conductor cross section 5. For this purpose, Fig.13 As shown, the contact means 28 can each have a tip 30 and / or be needle-shaped. In other words, the conductor 4 can be contacted by piercing the exposed conductor cross section 5 in the axial direction A with the contact means 28 .

[0172] exist Figure 12 to Figure 14In the embodiment, among other things, a contact surface 9 is provided on the cable 2, at which the conductor 4 can be used to contact the contact means 28. In particular, the contact surface 9 can be located in a cutting plane of the cable 2, for example, the cutting plane is produced by cutting the cable 2 at this point. It can be seen that the conductor 4 there can be adjacent to the outside from the inside of the cable 2 (see Fig.13 and Fig.14 ) or protrusion (see Fig.12 ), and is therefore visible and accessible from outside the cable 2. Fig.13 and Fig.14 In FIG. 5 , the corresponding exposed conductor cross section 5 also lies in the cutting plane.

[0173] according to Fig.13 , the conductors 4 can each form a wire 13 with the surrounding insulating sheath 11, whereby the wire 13 protrudes from the contact surface 9 (see Fig.12 ) or flush with it ( Fig.13 and Fig.14 ). In addition, the solution according to the embodiment can avoid stripping, so that the protruding conductor 4 and / or the exposed conductor cross section 5 are each still completely or partially surrounded by the insulating sheath 11. However, the protruding conductor 13 can be released at least partially or completely from the cable sheath 8 of the cable 2 over the entire circumference (see Fig.12 ).

[0174] The connection system 1 may have Fig.12 The guide device 70 shown is formed separately from the cable 2 and the component 20 and / or is movably or detachably connected to the cable 2 and / or the component 20. The guide device 70 can be designed to mechanically guide the contact in the axial direction A of the cable 2, and preferably guide the conductor 4, in particular the wire 13, and / or the contact mechanism 28, so as to make contact in the axial direction A of the cable 2. In other words, the guide device 70 can provide linear guidance for the cable 2 and / or the component 20. When the component 20 and the cable 2 are linearly guided to move with each other to make contact, this can also be referred to as a contact movement.

[0175] The guide device 70 may include a guide housing 72 with a guide structure 71. Fig.12 In the embodiment, the guide structure 71 is provided in the form of an opening of a guide housing 72 in order to provide mechanical guidance for the corresponding conductor 4, in particular the cable 13, and / or the contact mechanism 28. Fig.12 As shown, the guide structure 71 can be formed on a first side 76 of the guide housing 72 to accommodate the conductor 4, particularly the cable 13, and can be formed on another opposite second side 77 (facing away from the first side 76) of the guide housing 72 to accommodate the contact mechanism 28.

[0176] Fig.12The wires 13 in the package can have different colors and are thus color-coded. The corresponding colors can also be provided in the area of ​​the openings 71 to facilitate distribution.

[0177] Furthermore, at least one coding 50 or counter coding 27 (having the properties described above) can also be provided on the guide device 70, for example in the form of a guide grommet.

[0178] In the connected state, the component 20 and / or a portion 44 of the guide 70 can seal the contact surface 9 and / or mechanically lock the contact surface 9 and / or provide anti-twist protection. Here, for example, an O-ring or a sealing lip on the guide 70 can be considered as a sealing element. A locking lug (not explicitly shown) or a locking hook can be used as a locking element. A protrusion or a groove can be used as an anti-twist protection.

[0179] Fig.15 and Fig.16 An example of an insertion mechanism 80 is shown, which may be provided on the guide structure 71 for controlling the contact movement so as to insert at least one or more electrical contact mechanisms 28 into the associated electrical conductor 4 with a predetermined penetration depth 90 in the axial direction A of the conductor 4 and / or cable 2 .

[0180] The insertion mechanism 80 can be designed to insert, in particular pierce, each contact mechanism 28 linearly guided by the contact movement into the associated electrical conductor 4 through a contact movement, and have a predetermined penetration depth 90, in particular a piercing depth 90, and the predetermined penetration depth 90 is preferably in the range of 0.5 mm to 10 mm, preferably 1 mm to 6 mm, preferably 2 mm to 4 mm.

[0181] The insertion mechanism 80 may further comprise a pressure element 81 and a transmission device 82. Here, the transmission device 82 may be connected to the pressure element 81 in a force-transmitting manner so that the pressure element 81 is moved when a force is applied to the transmission device 82 manually or mechanically. In this way, the individual electrical contact means 28 can be introduced by the pressure element 81 via a contact movement, preferably pierced into the associated electrical conductor 4. Here, the stroke 93 of the pressure element 81 between the starting position 91 and the end position 92 can be determined by a predetermined penetration depth 90 and / or can be structurally predetermined. In addition, an adjustment mechanism 84 may be provided to adjust the predetermined penetration depth 90 in the insertion mechanism 80 and preferably the stroke 93, preferably depending on the cable type of the cable 2 and / or continuously and / or in a plurality of predefined stages.

[0182] also, Fig.15It is schematically illustrated that the insertion mechanism 80 may be configured as a lever mechanism 80, wherein the transmission device 82 comprises a lever arm 82. This may be used to transmit a manually or machine applied force into the transmission device 82 into a controlled contact movement, wherein the control is such that the contact movement is linearly guided and / or the penetration depth 90 is predetermined and / or controlled and / or limited, and / or a predetermined and / or current penetration depth 90 is indexed for the user.

[0183] In addition, you can also provide Fig.15 An indexing mechanism 83 is also shown in order to indicate the current penetration depth 90 visually, tactilely or audibly during the contact movement.

[0184] Fig.16 It is shown that the insertion means 80 can also have a nut 85, preferably a union nut 85, which is designed to establish a mechanical connection between the component 20 and the cable 2 and is screwed onto the thread 86 for this purpose. In addition, a transmission device 82 can be provided, which is designed to transmit a movement, in particular a rotational movement, of the nut 85 on the thread 86 to the pressure element 81. In addition, the pressure element 81 can be arranged in the region of a guide space 87 and guided so as to pass through the guide space 87 of the guide structure 71 along the longitudinal axis of the thread 86 by the transmitted movement in order to thereby apply a force for inserting the electrical contact means 28, wherein the guide space 87 is designed to accommodate a part of the component 20 and / or at least one electrical contact means 28.

[0185] In addition, according to Fig.16 A retaining element 88 may be provided which is securely connected to the pressure element 81 so as to limit the contact movement when the retaining element 88 encounters the counter-retaining element 89 .

[0186] exist Fig.11 , a method 100 for producing a connection of a cable 2 to a component 20 is schematically shown. According to a first method step 101, a connection system 1 with a cable 2 and a component 20 can be provided, wherein the cable 2 has a plurality of electrical conductors 4. The respective conductor cross sections 5 of the conductors 4 can be exposed and accessible from the outside. In addition, the component 20 can include a plurality of contact means 28 for contacting the conductors 4 of the cable 2. According to a second method step 102, the contact means 28 can be inserted into the conductors 4 in the axial direction A of the cable 2 through the exposed conductor cross sections 5 so that contact is established between the contact means 28 and the conductors 4.

[0187] Fig.17An embodiment of a connection system 1 according to the invention is schematically shown, which comprises an embodiment of a component 20 according to the invention and an embodiment of a cable 2 according to the invention. The cable 2 has a plurality of strain relief profiles 172 spaced apart from one another. The strain relief profiles 172 are formed as circumferential grooves and are evenly spaced apart along the cable 2. A strain relief device 171 of the component 20 engages in such a strain relief profile 172, wherein the strain relief device 171 is formed integrally with the component 20 and prevents an accidental pulling of the cable 2 from causing an accidental release of the electrical connection between the cable 2 and the component 20. The electrical connection is established by pointed contact mechanisms, each of which penetrates only into a predetermined one of the electrical conductors of the cable. The electrical conductors of the cable 2 extend twisted with one another along the length of the cable 2. The cable 2 also has a coding 50, which interacts with a counter coding of the component 20, so that the contact mechanism of the component 20 only makes electrical contact with the electrical conductor provided for this purpose during the establishment of the electrical connection between the component 20 and the cable 2, because the coding 50 and the counter coding together form a guide and prevent any other contact between the conductor and the contact mechanism. To this end, the coding 50 of the cable 2 is formed on the circumference of the cable as a spiral or threaded groove extending in the extension direction of the cable 2. Alternatively, instead of a groove, a flange of similar design can be provided. The coding 50 has a continuous course in the extension direction of the cable 2 and has the same relative position relative to the electrical conductor of the cable 2 at each point along the extension range of the cable 2, transversely or perpendicular to the extension direction of the cable. In other words, the cable 2 can be shortened to the required length at any point of the cable 2 in order to establish an electrical connection between the cable 2 and the component 20, because the constant relative position along the cable ensures the expected electrical contact. The contact surface 9 is formed at the cable end 217, at which the contact mechanism pierces into the conductor of the cable.

[0188] Fig.18a A schematic embodiment of a component 20 according to the invention is shown. A contact mechanism 28 for contacting an electrical conductor of a cable can be seen. The contact mechanism 28 leads electrically to a contact conductor 180 of a plug 181 of the component 20, wherein the contact conductor 180 forms a plug assembly 181. The guide course of the contact conductor 180 from the contact mechanism 28 to the plug 181 is not formed in a straight line, but at least once at an angle, preferably vertically, whereby the plug 181 is formed on a side of the component 20 which extends transversely or perpendicularly to the insertion direction of the cable 2. Instead of a plug 181 with a plug assembly 181, a socket with a socket assembly can be provided.

[0189] Fig.18b Another exemplary embodiment of a component 20 according to the present invention is shown. Fig.18aThe embodiment of the present invention differs in that the plug 181 is formed on the side of the component 20 which faces away from the side of the component 20 on which the cable can make electrical contact with the contact mechanism 28. In addition, the guiding course of the contact conductor 180 from the contact mechanism 28 to the plug 181 is formed so that the arrangement and / or allocation of the contact conductor 180 of the plug 181 is different from the arrangement and / or allocation of the contact mechanism 28.

[0190] Fig.19a An embodiment of a connection system 1 is shown. Here, the strain relief 171 is formed by a heat shrink tube 191. The heat shrink tube 191 also serves to seal the electrical connection between the cable 2 and the component 20. The heat shrink tube 191 engages into a circumferential groove forming the strain relief profile 172. In addition, the heat shrink tube is attached to the component 20.

[0191] Fig.19b Another embodiment of the connection system 1 is shown. Here, the cable 2 has microcapsules 193 which, when in contact with the activating substance 194, release a sealing compound which seals the electrical connection between the cable 2 and the component 20 to the environment. Of course, the component 20 can also have microcapsules and the cable 2 can have the activating substance. Alternatively, it is also conceivable that the activation, i.e. the release of the microcapsules, is carried out by heat or light or radiation or in another suitable way.

[0192] Fig.19c Another embodiment of the connection system 1 is shown. Here, a sealed cavity 198 in the component is delimited by the cable 2 and the component 20, sealed to the environment by a sealing compound 195. Preferably, the component 20 has a filling opening 196 for filling the sealing compound 195. In addition, the component 20 can have an outlet 197, from which the filled sealing compound 195 can escape if the sealing cavity 198 has been filled with the sealing compound 195. Alternatively or in addition, the component 20 can have a viewing window defining the sealing cavity 198, whereby a user can visually identify the extent to which the sealing cavity 198 is filled with the sealing compound 195.

[0193] For ease of representation, Fig.17 and Figures 19a to 19c The contact mechanism is not shown or is not visible due to the selected representation.

[0194] The above description of the embodiments describes the present invention only by way of example. Of course, the individual features of the embodiments can be freely combined with each other as long as this is technically feasible without departing from the scope of the present invention.

Claims

1. A connection system (1), comprising: - a component (20) for connection to an electric power cable (2), said component (20) comprising a plurality of contact means (28) for making contact with the conductors (4) of said cable (2), said contact means (28) being electrically conductive, - the power cable (2), wherein the conductors (4) are accessible for contacting the contact means (28), wherein the conductors (4) are electrically conductive, and wherein the conductors (4) each have an exposed conductor cross section (5), It is characterized in that The connection system (1) is designed to bring the contact means (28) into contact with the conductor (4) in the axial direction (A) of the cable (2) so as to electrically connect the contact means (28) directly to the exposed conductor cross section (5).

2. The connection system (1) according to claim 1, It is characterized in that The contact means (28) each have a pointed end (30) and / or are needle-shaped in order to contact the conductor (4) by piercing the contact means (28) in the axial direction (A) on and / or through the exposed conductor cross section (5).

3. The connection system (1) according to claim 2, It is characterized in that The conductors (4) are each formed as a stranded wire (4), each of which has a flexible single wire (12) in order to conductively surround the contact means (28) that pierces the corresponding conductor cross section (5).

4. Connection system (1) according to any one of the preceding claims, It is characterized in that The contact means (28) is designed to be introduced into the conductor (4) at and / or through the exposed conductor cross section (5), preferably to be pierced therein, the respective conductor (4) with its exposed conductor cross section (5) and the contact means (28) preferably pierced therein being at least partially surrounded by an insulating sheath (11).

5. Connection system (1) according to any one of the preceding claims, It is characterized in that A contact surface (9) is provided in the cable (2), at which the conductor (4) is accessible for making contact with the contact mechanism (28), the contact surface (9) being located in a cutting plane of the cable (2), at which the conductor (4) is adjacent to the interior of the cable (2) or protrudes outward from the interior of the cable (2) and can be seen from the outside of the cable (2), wherein the conductor (4) preferably protrudes from the contact surface (9) or is located in a recessed position in the cable (2), or wherein the corresponding exposed conductor cross section (5) is also located in the cutting plane.

6. The connection system (1) according to claim 5, It is characterized in that Each of the conductors (4) forms a wire (13) with the surrounding insulating sheath (11), the wire (13) protruding from the contact surface (9), the wire (13) only partially surrounded by the cable sheath (8) of the cable (2), wherein the protruding conductor (4) and / or the exposed conductor cross section (5) are each completely or partially surrounded by the insulating sheath (11), wherein the contact surface (9) is formed by a cut surface of the cable sheath (8) of the cable (2).

7. Connection system (1) according to any one of the preceding claims, It is characterized in that The geometrical profile (7), in particular the spatial shape and / or the outer shape, extends in the axial direction (A) of the cable (2), and the geometrical profile (7) defines a guide cavity (6) for a guide mechanism (26) and preferably for a guide pin (26) of the component (20), so as to mechanically guide the contact in the axial direction (A) of the cable (2), preferably to guide the contact mechanism (28) to be inserted into the conductor (4) in the axial direction (A) of the cable (2), wherein the guide cavity (6) is particularly preferably designed for transmitting a fluid, in particular for transmitting a medium, such as air or a liquid.

8. Connection system (1) according to any one of the preceding claims, It is characterized in that The connection system (1) has a guiding device (70), which is formed separately from the cable (2) and the component (20) and / or is movably connected to the cable (2) and / or the component (20), and is designed to mechanically guide the contact in the axial direction (A) of the cable (2), and preferably guide the conductor (4), in particular the wire (13), and / or the contact mechanism (28) so as to make contact in the axial direction (A) of the cable (2).

9. The connection system (1) according to claim 8, It is characterized in that The guide device (70) has a guide housing (72), the guide housing (72) having a guide structure (71), the guide structure (71) preferably being in the form of an opening in the guide housing (72) so as to provide mechanical guidance for the corresponding conductor (4), in particular the wire (13), and / or the contact mechanism (28), the guide structure (71) being designed to accommodate the conductor (4), in particular the wire (13), on one side (76) of the guide housing (72), and to accommodate the contact mechanism (28) on the other side (77) of the guide housing (72), preferably oppositely in the axial direction of the guide device (70), in particular so as to provide contact in the inner space of the guide housing (72) of the guide device (70), and / or so as to mechanically guide the contact mechanism (28) to be inserted into the conductor (4) in the axial direction (A) of the cable (2) for contact.

10. Connection system (1) according to claim 8 or 9, It is characterized in that Each conductor (4) forms a wire (13) with the surrounding insulating sheath (11), and the wire (13) is color-coded, in particular by the different colors of the insulating sheath (11), and a corresponding corresponding coding is provided on the guide device (70) in order to assign the guide structure (71) and preferably the opening (71) of the guide housing (72) to the corresponding wire (13) in terms of color.

11. The connection system (1) according to any one of claims 8 to 10, It is characterized in that At least one coding (50) is spatially formed on the cable (2) and / or on the guiding device (70) in order to predetermine a specific arrangement and allocation of the contact means (28) of the component (20) and the electrical conductor (4) of the cable (2), the at least one coding (50) comprising a mechanical and / or geometric coding (50) of the cable (2) and / or the guiding device (70), wherein a geometric profile (7), in particular a spatial shape and / or an outer shape, extends in the axial direction (A) of the cable (2) and / or the guiding device (70), the profile (7) preferably defining a guide cavity (6) for a guiding means (26) and preferably for a guiding pin of the component (20) in order to predetermine for the connection The component (20) is specifically oriented to prevent connection of the component (20) in the event of deviation from the specific orientation, wherein the guide cavity (6) is particularly preferably designed for conveying a fluid, in particular for conveying a medium such as air or a liquid, wherein the at least one coding (50) is preferably a geometrical contour and / or an extruded contour (7) of the cable (2) and / or the guiding device (70), in particular in the form of a grommet and / or a hose, wherein the at least one coding (50) preferably further comprises an electrical coding (50) and / or a color coding, wherein a systematic arrangement of the electrical conductors (4) of the cable (2) is provided, thereby predetermining a specific allocation of the electrical contact means (28) of the component (20) for the connection.

12. The connection system (1) according to claim 11, It is characterized in that The at least one coding (50) is formed by a non-rotationally symmetrical cross section of the cable (2), in particular by a non-rotationally symmetrical inner contour and / or outer contour of the cable (2).

13. The connection system (1) according to any one of claims 8 to 11, It is characterized in that The conductors (4) of the cable (2) are each formed as a strand (4) so ​​as to form a receptacle for inserting the contact means (28) of the component (20), preferably for piercing the contact means (28) in the form of a contact tip (30) into the strand (4) in the axial direction (A) of the cable (2), the guiding device (70) being arranged between the cable (2) and the component (20) so as to guide the insertion and preferably pierce in a predetermined arrangement and allocation of the contact means (28) of the component (20) and the conductors (4) of the cable (2), a complementary corresponding coding (27) of the component (20) being provided for the coding (50) on the cable (2) and / or the guiding device (70) so as to predetermine the guidance and preferably predetermine the alignment of the cable (2) relative to the component (20).

14. Connection system (1) according to any one of the preceding claims, It is characterized in that The component (20) and / or the guiding device (70) directly abuts against the contact surface (9) in the connected state, wherein the contact mechanism (28) of the component (20) contacts the conductor (4) of the cable (2) and is preferably inserted into the conductor (4), preferably pierces the conductor (4), wherein a part (44) of the component (20) and / or the guiding device (70) seals the contact surface (9) and / or mechanically locks the contact surface (9) and / or provides anti-twist protection in the connected state.

15. Connection system (1) according to any one of the preceding claims, It is characterized in that The electrical conductor (4) extends only and / or directly and / or adjoins the contact surface (9) of the cable (2) or the contact surface (9), preferably in order to be able to pierce the contact means (28) in the form of a contact tip and / or piercing means into the electrical conductor (4) at the contact surface (9), The contact surface (9) preferably extends transversely, in particular perpendicularly, to the extension direction of the cable (2). And the contact surface (9) in particular forms a cutting surface (9) of the cable (2) and / or a cable end (217) of the cable (2), at which cutting surface (9) the cable (2) has preferably been shortened to a desired length.

16. Connection system (1) according to any one of the preceding claims, It is characterized in that The electrical conductors (4) of the cable (2) are twisted together, in particular in the form of one or more pairs, trios or quads. The at least one coding (50) has a continuous course along the length of the cable (2) and has a course matching the twisting, so that at each point of the cable (2) along the length of the cable (2), the at least one coding (50) and the electrical conductor (4) have the same relative position to each other, in particular in a plane transverse to, preferably perpendicular to, the direction in which the cable (2) extends.

17. Connection system (1) according to any one of the preceding claims, It is characterized in that The cable (2) has a fluid pipeline, in particular a liquid pipeline or a gas pipeline, In particular, the at least one coding (50) is formed partly or exclusively by the fluid line, The electrical conductor (4), in particular a strand or a plurality of strands, surrounds the fluid line along the extension of the cable (2) in order to preferably ensure uniform cooling of the conductor (4) by the fluid that can be conducted through the fluid line, The component (20) has a fluid channel which is connected in a fluid-transmitting manner to the fluid line of the cable (2) and which in particular partially forms a coping coding (27) or only partially forms a coping coding (27).

18. Connection system (1) according to any one of the preceding claims, It is characterized in that The cable (2) has strain relief profiles (172) on its outer circumference, preferably at regular intervals from one another along its extension, particularly preferably in the form of circumferential depressions, particularly grooves or notches, or protrusions, particularly flanges or steps, preferably for heat shrink tubing (191) or strain relief devices (171), and The component (20) has a strain relief device (171) for the cable (2), in particular a heat shrink tube (191) formed as a strain relief device (171), which is preferably attached to the component (20), and the strain relief device (171) cooperates with the strain relief shape (172) of the cable (2) so that the cable (2) is strain-relieved by the strain relief device (171) forming a shape fit with the strain relief shape (172) of the cable (2), preferably by the strain relief device (171) engaging behind the strain relief shape (172) or engaging in the strain relief shape (172).

19. Connection system (1) according to any one of the preceding claims, It is characterized in that The configuration and / or arrangement and / or dimensioning of the plurality of contact mechanisms (28), in particular the plurality of contact mechanisms (28), is designed for the dimensioning and / or course of the electrical conductor (4) and / or the arrangement of the electrical conductor (4) on the contact surface (9), and the electrical contact of several electrical conductors (4) through only one of the contact mechanisms (28), in particular through one of the contact mechanisms (28) electrically contacting a first electrical conductor (4) in the contact surface (9) and another electrical conductor (4) behind or beside the first electrical conductor (4) in the extension direction of the cable (2) is preferably excluded due to the twisting of the electrical conductors (4).

20. Connection system (1) according to any one of the preceding claims, It is characterized in that The contact mechanism (28) is electrically connected to an electrical contact conductor (180) of a plug assembly (181) or a socket assembly of the component (20), and the position and / or arrangement and / or distribution and / or dimensioning of the electrical contact conductor (180) is different from the position and / or arrangement and / or distribution and / or dimensioning of the contact mechanism (28), especially on the contact surface (9).

21. Connection system (1) according to any one of the preceding claims, It is characterized in that An electrical connection is established between the cable (2) and the component (20), in particular the contact means (28) penetrates into the associated conductor (4), the connection system (1) comprising a seal, in particular a material-fitting seal and / or a force-fitting seal and / or a form-fitting seal, which seals the connection relative to the environment of the connection system (1) and in particular seals a cable section adjacent to the connection, in particular according to IP20 or IP67, The seal is preferably formed by a heat shrink tubing (191) or a heat shrink tubing (191) forming the strain relief, in particular in the case of a form-fitting seal.

22. Connection system (1) according to claim 21, It is characterized in that The seal is formed by a sealing compound (195), in particular an adhesive or a potting compound, In particular in the extension direction of the cable (2) and / or in a direction perpendicular to the extension direction of the cable (2), a sealing cavity (198) for accommodating the sealing compound (195) is formed between the cable (2), in particular the contact surface (9) of the cable (2), and the component, the sealing compound (195) being located in the sealing cavity (198) and preferably completely filling the sealing cavity (198), wherein the sealing cavity (198) preferably has a filling opening (196) for the sealing compound (195), the filling opening (196) being in particular closed by the sealing compound (195), The sealing cavity (198) preferably has an outlet (197) for the sealing compound (195) which is in particular closed by the sealing compound (195), wherein in particular the section of the component (20) defining the sealing cavity (198) is formed from a transparent material so that the extent to which the sealing cavity (198) is filled with the sealing compound (195) can be visually determined.

23. Connection system (1) according to claim 21 or 22, It is characterized in that The seal is formed by releasing a filling of microcapsules (193), in particular of the cable (2) or of the component (20).

24. Connection system (1) according to any one of claims 21 to 23, It is characterized in that The seal seals and / or electrically insulates the transition from the fluid line to the fluid channel in a fluid-tight manner relative to the contact point, the contact point being formed by contact of the conductor (4) with the contact means (28) on the contact surface (9), and / or wherein the seals electrically insulate and / or seal the contact point relative to each other, the contact point being formed by contact of the conductor (4) with the contact means (28) on the contact surface (9).

25. Connection system (1) according to any one of the preceding claims, It is characterized in that The cable (2) is attached to the component (20) by a force-fit connection and / or a form-fit connection and / or a material-fit connection.

26. Connection system (1) according to any one of the preceding claims, It is characterized in that The connection system (1) comprises an insertion mechanism (80), in particular a screw mechanism, a lever mechanism or a plug mechanism, for performing the contact movement, the insertion mechanism (80) preferably being designed to move the cable (2) in the direction of the component (20) during the contact movement, the connection system (1) or the insertion mechanism (80) preferably comprising an adjustment mechanism (84) for adjusting a predetermined penetration depth (90) of the contact mechanism (28) inserted into the conductor (4) at the insertion mechanism (80), preferably in relation to the cable type of the cable (2) and / or continuously and / or in several predetermined stages, wherein the connection system (1) or the insertion mechanism (80) preferably has an indexing mechanism (83), the indexing mechanism (83) being designed to index the current penetration depth (90) for a user during the contact movement.

27. A cable (2) for connection to a component (20), the cable (2) having a plurality of electrical conductors (4), each of which has an exposed conductor cross section (5) for making electrical contact with a contact mechanism (28) of the component (20), It is characterized in that The cable (2) is designed to provide contact by relative movement of the conductor (4) and the contact means (28) parallel to each other in an axial direction (A) of the cable (2) so as to electrically connect the contact means (28) directly to the exposed conductor cross section (5).

28. A cable (2), in particular a cable (2) according to claim 27, It is characterized in that The cable (2) is designed according to the connection system (1) according to any one of claims 1 to 26.

29. The cable (2) according to claim 27 or 28, It is characterized in that The cable (2) has microcapsules (193) for forming a seal, in particular on the outer circumference of the cable (2) and / or on the contact surface (9), the filling of the microcapsules (193) being releasable in particular by supplying heat, radiation, in particular supplying light, preferably in the form of UV light, contact with an activating substance (194) or supplying light in combination with moisture, or The cable (2) has, in particular on the outer circumference and / or on the contact surface (9), an activating substance (194) for the microcapsules (193) in order to release the filling of the microcapsules (193) when in contact with the microcapsules (193) in order to form a seal.

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