Device for establishing an interlocking connection

Abstract

The invention relates to a device (2) for establishing an interlock connection, having a plug structure assembly (4) and a circuit carrier (6), wherein the plug structure assembly (4) has two plug-in interfaces (8, 10) each having at least one associated interlock contact (12, 14), wherein on the circuit carrier (6) a structure element (22) for mechanically reinforcing the circuit carrier (6) is arranged, wherein the structure element (22) is a pot-shaped housing part, wherein the structure element (22) has contact elements (24) for electrical contact with the interlock contacts (12, 14).

Description

Technical Field

[0001] This invention relates to a device for establishing an interlocking connection. Background Technology

[0002] Motor vehicles are typically equipped with air conditioning systems that regulate the temperature of the vehicle's interior space by means of a refrigerant circuit. This system, in principle, has a circuit through which the refrigerant is guided. The refrigerant, such as R-134a (1,1,1,2-tetrafluoroethane) or R-744 (carbon dioxide), is heated at the evaporator and compressed by a compressor. The refrigerant then releases the absorbed heat again via a heat exchanger, after which it is redirected back to the evaporator via a throttling device.

[0003] In such applications, for example, using a scroll compressor as a refrigerant compressor is feasible in principle. This scroll compressor typically has two scrolls that can move relative to each other, operating in a manner similar to a positive displacement pump. Here, the two scrolls are typically implemented as an interlocking (helical) helical pair or scroll pair. In other words, one helical portion is at least partially embedded in the other helical portion. The first (scroll) helical portion is fixed relative to the compressor housing (stationary scroll, stator scroll), while the second (scroll) helical portion (movable / orbiting scroll) is driven in a track-like manner within the first helical portion by means of an electric motor.

[0004] Electric motors, especially brushless motors, which are (three-phase) motors, typically have a stator equipped with multi-phase field windings or stator windings, which is arranged coaxially with a rotor having one or more permanent magnets. The rotor and stator are constructed, for example, as laminations, wherein the stator teeth carry the coils of the stator windings in the stator slots located in the middle.

[0005] In brushless electric motors, the alternating current used to feed the conductor windings is typically generated by a converter (inverter). In smaller electric motors, this converter, along with the associated control electronics that are motor electronics, is usually housed in an electronics housing, which is integrated into the motor housing, for example, as an electronics compartment. The motor electronics are connected to the vehicle's electrical grid via connectors through an interface area within the electronics housing.

[0006] Electric refrigerant drive units are typically high-voltage components, meaning that the refrigerant drive unit or motor electronics are connected to a high DC voltage, such as 60V or greater, especially 470V. Accordingly, the high voltage is guided through a connector with plugs.

[0007] If the connectors or contacts of the inverter leading to the motor electronics become loose, the electrical energy stored in the inverter and / or the energy of the connected vehicle battery may not be depleted in a timely or safe manner. Therefore, for general personnel protection and to prevent damage, a safety electrical interlock is usually installed between the high-voltage connectors and the motor electronics.

[0008] In such (safety) electrical interlocking systems, also known as interlocking or high-voltage interlocking (HV-interlock), the correct connection of the connectors in the vehicle's electrical system is monitored to prevent accidental, improper, or otherwise disengaged contact when the vehicle's electrical system is operational. For this purpose, a pilot line or safety line is provided, acting as a series or parallel circuit (i.e., an SUM operation) guiding connections from one connector to another. For example, a low-voltage signal, or interlocking signal also known as an interlocking signal, is fed into this safety line, which loops through the connectors to each component connected to the vehicle's electrical system.

[0009] If one of the connected connectors becomes loose or its contacts separate, the resulting separation of the pilot contacts in the connector breaks the entire loop. The status or interlock signal is monitored by the controller, which, in the event of a contact interruption fault, switches the vehicle's electrical grid to de-energized, for example.

[0010] Therefore, in addition to the electrical (high-voltage) interface, additional interlocking contacts are arranged in the device plug. These additional interlocking contacts close the current loop with the controller when the device plug is plugged in. The controller ultimately switches the (high-voltage) potential to the power consumer. Therefore, a connection needs to be established between the controller and the interlocking contacts inside the device plug. Here, the controller is at a lower potential level (e.g., the 12V vehicle electrical grid).

[0011] To ensure proper spacing of the air gap and creepage distance, interlocking circuits and high-voltage circuits are guided with a sufficiently large gap between them. However, here, when the current loop is closed on the flat structure assembly, the necessary spacing increases the required area on the flat structure assembly.

[0012] An assembly for connecting an electrical interface via a housing is known from DE 10 2019 111 691 B4. This assembly has a first connector with a first plug and a second connector with a second plug, used for transmitting electrical energy within independent transmission ranges, and a receiving element for accommodating the plugs. Here, the receiving element, together with the first and second plugs, is constructed as an integral and coherent unit and a one-piece component. The assembly also has an interlocking connection configured for electrical interlocking, which is electrically connected to the plug of the connector. Summary of the Invention

[0013] The objective of this invention is to describe a particularly suitable device for establishing an interlocking connection. A further objective of this invention is to describe a particularly suitable contact element.

[0014] According to the invention, with respect to the device, this task is solved using the features of claim 1. Advantageous designs and improvements are the subject of the dependent claims.

[0015] The device according to the invention is configured to establish an interlocking connection, i.e., to establish a (safety) electrical interlocking connection, and is suitable for and configured for this purpose. Here, the device has a plug structure assembly as a connector or device plug and a circuit carrier. The circuit carrier is, for example, implemented as a printed circuit board or a flat structure assembly. Similarly, lead frames, especially injection-molded lead frames, are conceivable as circuit carriers. The following embodiments particularly relate to printed circuit boards as circuit carriers; however, depending on the context, these embodiments can also be transferred to other circuit carriers.

[0016] The plug assembly here has two plug-in interfaces, each with at least one associated interlocking contact. A can-shaped housing element is arranged on the circuit carrier as a structural element, which mechanically reinforces or stabilizes the circuit carrier. This structural element has contact elements for electrical contact with the interlocking contacts. In other words, the interlocking connection is achieved by means of the contact elements of the structural element. Therefore, a particularly suitable device for establishing an interlocking connection is realized.

[0017] Contact elements can be arranged on the outside of the structural element. However, it is also possible to arrange them on the inside or integrate them into the structural element itself, for example, by having the contact elements encapsulated by injection molding using the structural element.

[0018] Preferably, the plug structure assembly has a high-voltage interface with a high-voltage plug contact and at least one high-voltage interlock contact, and a low-voltage interface with a low-voltage plug contact and at least one low-voltage interlock contact. The high-voltage plug contact, the low-voltage plug contact, and at least one high-voltage interlock contact and at least one low-voltage interlock contact are embedded in a common housing of the plug structure assembly and extend vertically from the housing at the free end side. In other words, the plug structure assembly is preferably implemented as an integral or one-piece structural assembly.

[0019] Here, corresponding contacts for high-voltage and low-voltage plug contacts are appropriately provided on the circuit carrier. In a preferred embodiment, the structural element is implemented as a shell-like or canister-shaped cover or shield that covers the corresponding contacts. For example, the structural element is implemented as a plastic shield. Suitably, through openings for the high-voltage and low-voltage plug contacts are introduced into the structural element. This means that the corresponding contacts are arranged inside the structural element, wherein the contact elements are arranged, for example, on the outside of the structural element opposite to the circuit carrier. Therefore, contact between the high-voltage and low-voltage plug contacts and the corresponding contacts preferably occurs inside the structural element, while the interlocking connection occurs, for example, outside the structural element. Thus, the spacing of the air gap and creepage distance is achieved by means of the structural element and does not need to be retained on the circuit carrier.

[0020] According to the present invention, the necessary connection between the interlocking contacts of the plug structure assembly and the controller is established via a suitable structural element having contacts and electrical conductors. This differs from the interlocking connection implementation in prior art plug structure assemblies, which is established by means of structural elements or contact elements. Advantageously, plug structure assemblies of the same type can be used, and the interlocking connection need not be implemented at the level of the electronic device or on the circuit carrier. Product-specific adaptation is achieved here via suitable conductors guided within the structural element.

[0021] Structural elements can be miniaturized through appropriate design structural measures such as isolation of conductors in structural elements and appropriate material selection for structural elements, such as leakage current-resistant plastics.

[0022] Structural elements can be selectively coupled to circuit carriers via shape-locking, force-locking, or material-locking methods. Here, the structural element can also fulfill other functions, such as guiding insertion contacts for tolerance compensation, reinforcing circuit carriers, and supporting large electrical components. The structural element can also be used solely to establish interlocking connections.

[0023] The “shape-locking” or “shape-locking connection” between at least two interconnected components is understood here and below in particular as the retention of the interconnected components in at least one direction by direct interlocking of the contours of the components themselves or by indirect interlocking via additional connectors. Thus, “prevention” of mutual movement in that direction is achieved by shape.

[0024] The term "force-locking" or "force-locking connection" between at least two interconnected parts is understood here and below in particular as meaning that the interconnected parts are prevented from sliding against each other due to the frictional force acting between them. If the "connecting force" that causes this frictional force is lacking (meaning the force that presses the parts together, such as a screwing force or gravity itself), then the force-locking connection cannot be maintained and will therefore loosen.

[0025] The term “material locking” or “material locking connection” between at least two interconnected components is understood here and below in particular to mean that the two interconnected components are held together at their contact surfaces by material bonding or cross-linking (e.g., due to atomic or molecular bonding forces) and, where necessary, by the action of additives.

[0026] The contact element can be implemented as a separate component. In other words, the contact element can be implemented separately from the plug structure assembly and separately from the structural elements.

[0027] In a suitable construction scheme, the contact element is fastened to the structural element in a detachable or replaceable manner. This allows for a particularly simple and flexible adaptation of the structural element to different conductor or contact assemblies of the plug structure assembly.

[0028] In possible implementations, the contact element is fastened to the structural element by form-locking and / or force-locking methods, such as clamping, latching, or locking. This achieves a simple and reliable fastening of the contact element. The conjunction "and / or" is understood here and below to mean that the features associated by this conjunction can not only be constituted together, but also as alternatives to each other.

[0029] An additional or further aspect of the invention provides that the contact element has at least one electrical conductor for an electrical interlocking contact, the conductor being segmentally embedded in a body made of a non-conductive material. In other words, the conductor is at least partially integrated into an insulator, wherein the conductor extends from the body at its free end and contacts or is capable of contacting the interlocking contact. The conductor is, for example, a bent element, particularly a stamped bent element. The body is, for example, a plastic body, particularly in the form of an injection-molded part, which segmentally surrounds the conductor as an insert. The body is, for example, made of a plastic resistant to leakage current. This results in a simple and inexpensive contact element.

[0030] In alternative design approaches, the contact elements do not have insulators, thus allowing conductors to be laid individually and properly secured (e.g., by injection molding or by clips) within or extending onto the structural elements.

[0031] In a preferred embodiment, the body has at least one integral, i.e., one-piece or integrally formed, fastening element for mechanical fastening to the structural element. Thus, additional fastening devices, such as screws, are not required for fastening the contact element to the structural element.

[0032] In conceivable construction schemes, the fastening element is particularly implemented for locking with the mushroom-shaped part of the structural element. For example, the fastening element is implemented as a snap with a mushroom-shaped cross-section, which is pressed into the receiving portion or cavity of the structural element and fits into the receiving portion (cavity) from the rear in a form-locking manner. Here, the snap is formed, for example, by a plurality of circumferentially arranged pressing tongues. Thus, a particularly simple fastening of the contact element can be achieved.

[0033] In an advantageous improvement, the section of the conductor embedded in the body has, in particular, a stepped offset portion oriented transversely to the longitudinal direction extending between the interlocking contacts. This improvement is especially advantageous when the interface of the plug structure assembly has an offset portion. This offset portion in the conductor is structurally achieved through an advantageously flat design of the conductor suitable for stamping and bending. This ensures that the contact surface of the conductor is always guided parallel to the corresponding contact or interface of the plug structure assembly. If the contact surface is formed on the conductor by stamping and bending, then a right-angle bend relative to the longitudinal direction of the conductor is advantageous. The offset occurring in the plane between the interlocking interfaces of the plug structure assembly is thus compensated by the offset of the conductor guide portion. However, here, the offset portion in the conductor does not necessarily need to be right-angled, nor does it necessarily have to be in the described insulator. If the contact surface is formed by another technique, for example by welding the contact elements, then the transverse offset portion can be omitted if necessary.

[0034] In conceivable design schemes, the section of the conductor extending between the body and the interlocking contacts, especially low-voltage interlocking contacts, has an axial offset portion oriented in an axial direction perpendicular to the surface of the circuit carrier. Here, the axial offset portion is appropriately guided along the housing wall of the structural element. Thus, the conductor follows the contour of the structural element. Here, the structural element is advantageously shaped such that it approximately conforms to the contour of the member located below, so that it can thus perform additional functions, such as support. Furthermore, the axial offset portion in the structural element enables a temporally staggered orientation of the plug interface or contacts of the plug structure assembly, which allows for improved tolerance compensation and better monitoring of the process technology.

[0035] Offsets in the longitudinal and / or axial directions are predetermined, for example, by the frame conditions on the design structure of the plug assembly, and provide the possibility of tolerance compensation. However, the conductor can also be constructed without offsets.

[0036] Contact between the plug structural assembly and the interlocking connection on the structural element can be made, for example, via plug contacts, crimp contacts, pin / socket contacts, sheet contacts, or clip contacts, or other electrical connection methods. In a preferred embodiment, the free end of the conductor is configured as an arc-shaped contact or a spring contact, which elastically rests against the interlocking contact in the contact state.

[0037] In suitable designs, the interlocking contacts and / or the free ends of the conductors of the plug structural assembly are embedded in openings in the structural element. This means that the interlocking connection or contact occurs inside the structural element, thus protecting the contact points from external influences. Alternatively, the interlocking connection can be moved to the circuit carrier. Attached Figure Description

[0038] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. Wherein:

[0039] Figure 1 A first embodiment of a device for establishing an interlocking connection is shown in perspective, the device having a plug structure assembly and a printed circuit board with structural elements;

[0040] Figure 2 Interlocking connections are shown in perspective.

[0041] Figure 3 Interlocking connections are shown in perspective without printed circuit boards and structural components;

[0042] Figure 4 The interlocking connection is shown in a side view;

[0043] Figure 5 The contact element is shown in perspective.

[0044] Figure 6 The contact element is shown in top view;

[0045] Figure 7 The contact element is shown in a side view;

[0046] Figure 8 A second embodiment of the device is shown in perspective; and

[0047] Figure 9 The perspective view shows the results based on Figure 8 The equipment.

[0048] In all the accompanying drawings, the corresponding parts and dimensions are always given the same reference numerals. Detailed Implementation

[0049] Figure 1 A device 2 for establishing an interlocking connection is shown. Device 2 is, for example, part of an electric refrigerant compressor in a motor vehicle. Device 2 has a plug structure assembly 4 and a circuit carrier 6. The circuit carrier 6 is implemented as a printed circuit board (PCB), and will be referred to as such hereinafter.

[0050] The plug structure assembly 4 is implemented as a plug part of a refrigerant drive device or an equipment plug. The plug structure assembly 4 has two plug interfaces 8 and 10, each with two associated interlocking contacts 12 and 14.

[0051] The plug-in interface 8 is implemented as a high-voltage interface, that is, an interface for high-voltage connections, especially for voltages higher than 60V, particularly 470V. The plug-in interface 8 has two plug contacts 16 (high-voltage positive and high-voltage negative) and two (high-voltage) interlocking contacts 12.

[0052] The plug-in interface 10 is implemented here as a low-voltage interface, that is, as an interface for low-voltage connections, particularly for voltages below 60V, especially 12V. The plug-in interface 10 has three plug contacts 18 and two (low-voltage) interlock contacts 14. Two of the plug contacts 18 are in contact with or can contact the vehicle battery (KL30, KL31), and one of the plug contacts 18 is directed to the communication line (COM).

[0053] The insertion contacts 16, 18 and interlocking contacts 12, 14 are embedded in the common housing or common injection-molded encapsulation 20 of the plug structure assembly 4, and protrude vertically from the plug structure assembly toward the printed circuit board 6 on the free end side. The plug structure assembly 4 is preferably implemented as an integral or one-piece structural assembly, and in particular, the plug structure assembly 4 forms a common high-voltage-low-voltage plug (HV-LV plug).

[0054] Corresponding contacts for insertion contacts 16, 18 (not shown in detail) are arranged on the printed circuit board 6. A can-shaped or cover-shaped housing component is arranged on the printed circuit board 6 as a structural element 22, which at least partially and mechanically reinforces or stabilizes the printed circuit board 6 and covers the corresponding contacts. The structural element 22 is, for example, implemented as a plastic cover, in the form of, for example, an injection-molded part made of leakage current-resistant plastic. In this embodiment, the structural element 22 is fastened to the printed circuit board 6 with screws. The structural element 22 is as shown in... Figure 1 As can be seen, it is installed in the corner area of ​​printed circuit board 6.

[0055] A contact element 24 is mounted on the outer side of the structural element 22 facing the plug structure assembly 4. Here, the contact element 24 realizes the electrical connection between the interlocking contacts 16 and 18, thereby forming an interlocking connection.

[0056] exist Figures 2 to 4 The interlocking connection achieved via contact element 24 is shown in detail. Figures 5 to 7 Contact element 24 is shown separately.

[0057] Structural element 22 has a recess or (through) opening 26 on the side facing the plug structure assembly 4 for accommodating interlocking contacts 12, 14. The interlocking contacts 12, 14 thus extend into structural element 22 at least in a segmental manner in the interlocked state. In an alternative embodiment, the interlocking contacts 12, 14 extend, for example, from structural element 22.

[0058] In this embodiment, the contact element 24 is implemented as a separate component that can be force-locked and / or form-locked in a receiving portion of the structural element 22 (not shown in detail) in a detachable or replaceable manner.

[0059] The contact element 24 is implemented in a suitable mounting manner and has a special shape for making current contact with the interlocking contacts 12, 14. For this purpose, the contact element 24 has a nearly square body 28 from which two electrical conductors 30 extend. The conductors 30 are guided parallel to each other and spaced apart from each other, and make contact with the interlocking contacts 12, 14 at their free ends 32, respectively.

[0060] Conductor 30 is implemented, for example, as a stamped and bent piece, or as a lead frame, which is embedded or integrated into the body 28 in at least a segmental manner. For example, in... Figure 4 and Figure 7 As can be seen in the diagram, the free end 32 convexly curves inward relative to the interlocking contacts 12 and 14 and arches toward the printed circuit board 6, thus forming an arcuate contact or spring contact, which, particularly in the top region on the outer side of the arch, elastically abuts against the respective associated interlocking contacts 12 and 14. For example, in... Figure 2 As can be seen, the free end 32 is embedded in the opening 26 of the structural element 22 together with the interlocking contacts 12 and 14.

[0061] The section of conductor 30 extending from the body 28 toward the interlocking contact 14 has a stepped axial offset portion 34 toward the printed circuit board 6. Here, the offset portion 34 extends parallel to the axial direction A perpendicular to the orientation of the printed circuit board 6. For example, especially... Figure 2 As can be seen, conductor 30 is therefore guided along the stepped offset portion of the structural element 22 along its axial direction.

[0062] Especially Figure 6 As can be seen, conductor 30 has an additional stepped offset portion 36 within the main body 30. Here, the offset portion 36 is oriented transversely to the longitudinal direction L extending between the interlocking contacts 12 and 14. In particular, the offset portion 36 is oriented parallel to the transverse direction Q, and the transverse direction is oriented perpendicular to the longitudinal direction L and the axial direction A.

[0063] The main body 28 is, for example, a plastic body, particularly in the form of an injection-molded part, which in particular surrounds the conductor 30, which serves as an insert, in a segmental manner in the region of the offset portion 36. The main body 28 is, for example, made of electrically insulating plastic, particularly resistant to leakage current.

[0064] The main body 28 has two integral, one-piece or integrally formed fastening elements 38 on the lower side facing the structural element 22 for form-locking and / or force-locking fastening to the structural element 22. The two fastening elements 38 are arranged spaced apart from each other, thereby enabling stable and torsion-resistant fastening of the contact element 24.

[0065] Here, the fastening element 38 is specifically configured for mushroom-head locking with the structural element 22. In the illustrated embodiment, the fastening element 38 is implemented as a snap with a mushroom-head shape in cross-section, which is pressed into the receiving portion or cavity of the structural element 22 and fits into the receiving portion (cavity) from the rear in a form-locking manner. The fastening element 38 is formed here by a plurality of circumferentially arranged pressing tongues, which are radially inwardly bent and each has a locking lug on a free end side.

[0066] The following is based on Figure 8 and Figure 9 The second embodiment of device 2 is described in detail. Figure 8 and Figure 9 The embodiments are the same as those described above. Figures 1 to 7 The difference in the embodiments lies particularly in the design of the interlocking connection and the contact element 24.

[0067] In this embodiment, the contact element 24 does not have an (insulating) body 28. The conductor 30 is implemented, in particular, as a stamped and bent conductor trace, which is guided on the outside of the structural element 22. For example, the conductor 30 is laid out individually and secured to the structural element 22. In the illustrated embodiment, the tongue-shaped free ends 32 here have openings (not marked in detail) that engage with the upright, protruding engagement protrusions 40 of the structural element 22.

[0068] Here, the offset portion 36 is not implemented at a right angle, but is configured, for example, in a roughly S-shape. The structural element 22 here has three guide walls 42 arranged parallel to each other, which protrude vertically from the outside, and the conductor 36 is guided between these guide walls in the region of the offset portion 36.

[0069] The free end 32 is electrically connected to the contact end 44 in the region of the engaging protrusion 40. The contact end 44 is not embedded in the structural element 22 and is substantially completely outside the structural element 22. The contact end 44 has a gap towards the free end 32, in which the interlocking contacts 12, 14 are positioned in the (interlocked) contact state. Depending on the type of bow-shaped contact, the contact tongue connected to the gap bends towards the interlocking contacts 12, 14 or towards the free end 32, and preferably elastically abuts against the interlocking contacts 12, 14 in the contact state. Figure 8 ).

[0070] To support and stabilize the contact tongue of the contact end 44, two support walls 46, which are generally T-shaped in cross-section, are formed on the structural element 22. The contact end 44 is supported on the horizontal T-sides of the support walls 46, wherein the vertical T-sides extend along the contact end 44 to the point of contact with the free end 32.

[0071] This invention is not limited to the embodiments described above. Instead, other variations of the invention can be derived by those skilled in the art within the scope of the disclosed claims without departing from the subject matter. Furthermore, in particular, all the individual features described in connection with the embodiments within the scope of the disclosed claims can be combined with each other in other ways without departing from the subject matter.

[0072] List of reference numerals

[0073] 2 Equipment

[0074] 4. Plug structure components

[0075] 6 Circuit carriers / printed circuit boards

[0076] 8. Connecting Interface

[0077] 10 Plug-in Interface

[0078] 12 Interlocking Contacts

[0079] 14 Interlocking Contacts

[0080] 16 Insert contact points

[0081] 18 Insert contact points

[0082] 20 Injection Molded Packaging Parts

[0083] 22 Structural Components

[0084] 24 Contact elements

[0085] 26 Opening

[0086] 28 main body

[0087] 30 conductors

[0088] 32 Free end

[0089] 34 Offset section

[0090] 36 Offset section

[0091] 38 Fastening components

[0092] 40. Engaging protrusion

[0093] 42 Guide Wall

[0094] 44 Contact end

[0095] 46 Supporting wall

[0096] Axial direction

[0097] L (vertical direction)

[0098] Q. Horizontal direction

Claims

1. A device (2) for establishing an interlocking connection, the device having a plug structure assembly (4) and a circuit carrier (6). - in, The plug structure assembly (4) has two plug interfaces (8, 10), each of which has at least one associated interlocking contact (12, 14). - Wherein, structural elements (22) for mechanically reinforcing the circuit carrier (6) are arranged on the circuit carrier (6). - Wherein, the structural element (22) is a can-shaped shell component, - Wherein, the structural element (22) has a contact element (24) for electrical contact with the interlocking contacts (12, 14). The contact element (24) has at least one electrical conductor (30) for electrical contact with the interlocking contacts (12, 24), the electrical conductor being embedded in a segmented manner into a body (28) made of a non-conductive material. The free end of the conductor (30) is configured as an arc-shaped contact, which elastically abuts against the interlocking contact in the contact state.

2. The device (2) according to claim 1. Its features are, The contact element (24) is fastened to the structural element (22).

3. The device (2) according to claim 1 or 2. Its features are, The contact element (24) is form-locked and / or force-locked fastened to the structural element (22).

4. The device (2) according to claim 1. Its features are, The main body (28) has at least one integrally formed fastening element (38) for mechanical fastening to the structural element (22).

5. The device (2) according to claim 4. Its features are, The fastening element (28) is configured to lock with the mushroom head of the structural element (22).

6. The device (2) according to claim 1. Its features are, The conductor (30) has an offset portion (36) in the embedded section, the offset portion being oriented transversely to the longitudinal direction (L) extending between the interlocking contacts (12, 14).

7. The device (2) according to claim 1. Its features are, The section of the conductor (30) extending between the body (28) and one of the interlocking contacts (14) has an axial offset (34) in an axial direction (A) perpendicular to the surface of the circuit carrier.

8. The device (2) according to claim 1. Its features are, The interlocking contacts (12, 14) of the plug structure assembly (4) and / or the free end of the conductor (30) are embedded in the opening (26) of the structural element (22).

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