ARRANGEMENT FOR ATTACHING A CONDUCTOR PLATE

Description

Technical field

[0001] The present invention relates generally to the field of electrical and electronic devices, in particular to the field of power supply devices and power electronic circuits. Specifically, the present invention relates to an arrangement by which a printed circuit board of an electrical device, e.g., a power electronic circuit, populated with components, can be mechanically connected to or attached to another device part, in particular a housing. State of the art

[0002] Devices, especially electrical or electronic devices such as power supplies, switched-mode power supplies, power electronic circuits, control units, etc., are nowadays typically built from electrical components and / or assemblies. These components are mounted on a substrate—a so-called printed circuit board (PCB)—which serves for mechanical mounting and, via conductive traces, for electrical connections between the components. The components can be attached, for example, by soldering them onto solder pads or into solder holes, by gluing, etc.

[0003] With the development of so-called surface-mount device (SMD) variants of electronic components, power components, for example, can be soldered onto a substrate or printed circuit board (PCB) in an automated process. The assembly of a PCB for an electronic device typically takes place in an SMD assembly line, and this process consists of several manufacturing steps. These steps include at least the application of solder paste, for example using a paste printer, to the PCB, the placement of electronic components on the PCB in an SMD placement machine, and the soldering of the components in an SMD oven.

[0004] During the further assembly or manufacturing of electrical devices, such as power supplies, switched-mode power supplies, power electronic circuits, control units, etc., printed circuit boards (PCBs) populated with electrical components are mechanically connected to or attached to any adjacent device components (e.g., housing; another populated PCB, etc.). For this purpose, connecting elements can be attached to the populated PCB, enabling a mechanical connection to the adjacent device component (e.g., housing) using a fastener (e.g., pin, stud, rivet, screw, etc.). The placement of the connecting element required for the mechanical connection on the PCB can be achieved, for example, using surface-mount technology (SMD) or manual assembly to establish a connection to another device component.

[0005] The challenge in SMD assembly of interconnects made of non-conductive materials (e.g., plastic, ceramic, etc.) lies primarily in the fact that these cannot be soldered to the circuit board. Currently, one option is to attach non-conductive interconnects to the circuit board using adhesive dots. For example, in an SMD assembly line, the adhesive dots can first be applied to the circuit board, and then the non-conductive interconnect can be mounted on top using SMD assembly. However, this requires additional steps in the production line beyond the assembly and soldering of the SMD components.

[0006] Alternatively, non-conductive connecting elements can also be attached to the circuit board manually or by hand assembly. However, this is very time-consuming and relatively expensive, especially for high-volume production.

[0007] Another way to automatically attach connectors to a printed circuit board (PCB) using SMD assembly is to use electrically conductive connectors to connect or attach the assembled PCB to any adjacent, and potentially electrically conductive, device components (e.g., housings). These electrically conductive connectors can be placed on the PCB using SMD components and then soldered in an SMD oven. However, the use of electrically conductive connectors has the disadvantage that a sufficiently large voltage gap must be maintained between the connector and the electrical components and other conductive parts mounted on the PCB.

[0008] Especially with electrical devices, such as switched-mode power supplies or power electronic circuits, specified voltage clearances or minimum distances for so-called air and creepage distances between conductive parts of the device must usually be observed. This means that, for safety and / or functional reasons, minimum distances must be maintained between, for example, conductor tracks, component contacts, electrically conductive components, etc., on a printed circuit board and other electrically conductive parts of the device, such as heat sinks, housing parts, fasteners, etc., in order to protect people or equipment as effectively as possible from the effects of electrical voltage and / or current. Such minimum distances are specified, for example, in standards such as the European standard EN 60664-1, etc.

[0009] As newly developed electrical devices, such as switched-mode power supplies, power supply units, power electronic circuits, etc., and consequently the printed circuit boards (PCBs) they contain, become increasingly smaller and more compact, it is becoming ever more difficult to maintain specified voltage clearances, as well as clearances and creepage distances, on the PCBs. Additionally, electrical devices are becoming increasingly complex, resulting in a higher packing density of electrical components on the respective PCB. This makes it increasingly difficult to place an electrically conductive connector at a suitable location on a component-populated PCB in order to maintain the permissible voltage clearances, as well as clearances and creepage distances to other components. The problem is that the connector, for example, creates an electrically conductive connection between electrically conductive components on the PCB and another device component (e.g., a power supply unit).(housing). This can lead, for example, to a failure to meet permissible stress clearances as well as air and creepage distances.

[0010] From EP 0 033 850 B1, a method for detachably fastening a printed circuit board in a telecommunications device is known, in which the printed circuit board is placed on spacers provided with a head, the head protruding through the printed circuit board. After lateral displacement, the printed circuit board is locked in place by a part of the housing structure.

[0011] US 6 088 228 A describes a protective cover for a multi-chip module, wherein the attachment of the protective cover to the printed circuit board uses a locking mechanism with minimal space requirements on the board.

[0012] From US2004 / 218371 A1, a spacer for printed circuit boards is known which serves to provide a physical connection between two printed circuit boards while maintaining a minimum distance between them to accommodate all necessary electronic components. Description of the invention

[0013] The invention is therefore based on the objective of providing an arrangement for the mechanical connection of a printed circuit board with another device component, which can be implemented in a simple, automated manner, in particular by means of SMD assembly, and in a space-saving manner, and with which a predetermined voltage distance can be maintained.

[0014] This problem is solved by an arrangement of the type mentioned above with the features of the independent claim. Advantageous embodiments of the present invention are described in the dependent claims.

[0015] According to the invention, the problem is solved by an arrangement by which a printed circuit board (PCB) capable of being populated with electrical components can be connected to, or attached to, another device component, such as the housing of an electrical device (e.g., a power supply or a switched-mode power supply). The arrangement comprises at least one connecting element made of non-electrically conductive material (e.g., plastic, ceramic, etc.) and at least one electrical component. The connecting element is designed to accommodate a fastening element for connection to the other device component and includes at least a base body and a counter-support. The base body can be inserted into a corresponding recess in the PCB. Furthermore, the base body is designed to prevent the connecting element from rotating after insertion into the PCB.The counter-support, which is attached to an upper end of the connector or base body in the insertion direction, further comprises at least one section that projects beyond a cross-section of the base body—for example, as a cantilever—to prevent the connector from falling through the opening in the printed circuit board during insertion, e.g., by SMD assembly. Furthermore, the base body projects beyond a cross-section of the counter-support with at least one section, and this at least one section of the base body and the at least one section of the counter-support are offset from each other. That is, the at least one section of the base body and the at least one section of the counter-support are arranged such that there is no overlap between these sections.Furthermore, at least one electrical component of the arrangement is attached to the circuit board in such a way that it is either detachable or non-detachable, so that the connecting element is held or locked in a positionally stable manner in the outlet in the circuit board.

[0016] The main aspect of the arrangement proposed according to the invention is that a connecting element made of non-electrically conductive material, such as plastic, ceramic, etc., can be easily and automatically attached and locked onto a printed circuit board (PCB), primarily using surface-mount technology (SMD) assembly in a production facility, without the need for additional adhesives. By simply locking the connecting element onto the PCB, voltage gaps can be reduced, and specified minimum voltage gaps, as well as clearance and creepage distances in the electrical device, can be more easily maintained. Furthermore, it is possible to integrate the at least one electrical component that holds the connecting element securely on the PCB into, for example, a circuit or the function of the electrical device.In this way, the arrangement also ensures efficient use of an area of ​​the circuit board by the assembled components.

[0017] The at least one electrical component is mounted on the circuit board in such a way that at least one section of the connecting element's base body, which extends beyond the cross-section of the mating support, is covered by the at least one electrical component. For example, when the connecting element is inserted, the upper boundary surface of this section can be flush with the top edge of the opening in the circuit board or lie slightly below this top edge. The at least one electrical component can then be easily attached above this point, for example, by soldering. By covering this section of the base body with the at least one component, the connecting element is prevented from falling out until the circuit board is finally assembled in the electrical device.

[0018] To establish a mechanical connection between the printed circuit board (PCB) and the other device component, the connecting element must provide a suitable means of creating a connection point between the PCB and the other device component. This connection can be, for example, positive locking, friction locking, and / or, if necessary, a material-fit connection. It is advantageous for the connecting element to have a bore. This bore can, for example, be unthreaded. The mechanical and fixing connection between the PCB and the other device component using the assembly can be achieved, for example, by inserting a pin, rivet, or stud attached to the other device component, etc., or by using a self-tapping screw as a screw connection. Alternatively, the bore can also have a thread to allow the PCB to be attached to the assembly.to fix the connecting element to the other part of the device using, for example, a screw, in particular a metric screw.

[0019] It is advantageous if the hole is designed as a through hole or a blind hole. A blind hole has the advantage that a fastener inserted into the blind hole (e.g., pin, stud, screw, etc.) does not protrude beyond the connecting element made of non-electrically conductive material.

[0020] Ideally, the base body of the connecting element has a polygonal cross-section. A polygonal, particularly triangular, rectangular, etc., cross-section of the base body provides a certain degree of torsional rigidity to the connecting element. One particular embodiment of the connecting element or base body, for example, features a hexagonal cross-section. In this case, for instance, the lower end of the base body (in the insertion direction) can have the shape of a hexagonal nut.

[0021] A preferred embodiment of the connecting element provides that at least one section of the connecting element's base body, which projects beyond the cross-section of the connecting element's mating support, is designed as a lug. This lug is, for example, attached to the base body such that, when the connecting element is inserted, its upper side is flush with the top edge of the opening in the printed circuit board or lies slightly below this top edge. The lug provides additional anti-rotational stability for the connecting element—for example, during final assembly when a screw is inserted into the hole in the connecting element. The base body can have any number of lugs, the number of which can be reduced or increased as needed to ensure stability and anti-rotational stability.

[0022] Alternatively, at least one section of the connector's base body that extends beyond the cross-section of the connector's mating support can be designed as a locking hook. This type of connector design can be used, for example, in manual assembly where the connector is inserted into the opening in the circuit board. The number of locking hooks on the base body can also be chosen as needed, depending on the required stability and the desired resistance to rotation of the connector, which is neither glued nor soldered to the circuit board.

[0023] It is also advantageous if the counterpart of the connector is designed in such a way that the connector can be automatically inserted into the opening in the printed circuit board. This means that the counterpart, which is provided at one upper end of the connector in the insertion direction, has a shape that allows the connector to be easily placed in the opening in the printed circuit board using SMD assembly. In particular, the connector should be very easy to pick up by the suction pipette of an SMD pick-and-place machine.

[0024] Furthermore, the connecting element is not only made of a non-electrically conductive material, such as plastic, ceramic, etc., but this material is also heat-resistant. The material's melting point lies above the temperature range of an oven in an automated production line (e.g., an SMD oven in an SMD manufacturing system). This effectively prevents the connecting element from bonding to the circuit board.

[0025] However, it can also be advantageous if the fastener is made of materials with different heat resistances. For example, the fastener's counter-support can be made of a material with a glass transition temperature within the temperature range of the automated production line's oven. The fastener's body can then be made of a second material with a melting point above the oven's temperature range. This allows the counter-support to fuse with the surface of the circuit board as it passes through the SMD oven, providing the fastener with additional grip.

[0026] Ideally, the fastener is manufactured using injection molding, or, when using different materials, two-component injection molding. With injection molding, the fastener can be easily produced in a predefined shape with a base form and counter-support. For this, the material (e.g., plastic) is liquefied and injected under pressure into a suitable mold. This manufacturing process ideally allows for almost complete freedom in choosing the shape and surface texture of the fastener and enables simple and cost-effective mass production. Furthermore, a multi-component injection molding process makes it possible to produce the fastener from different materials in a single operation. Brief description of the drawing

[0027] The invention is explained below by way of example with reference to the accompanying figures. These show: Figure 1 is a perspective, schematic representation of an exemplary embodiment of a connecting element of the arrangement according to the invention. Figure 2 is a schematic and exemplary top view of the arrangement according to the invention. Figure 3 is a schematic and exemplary longitudinal sectional view of the arrangement according to the invention along section line AA. Implementation of the invention

[0028] Figure 1Figure 1 schematically shows a perspective view of an exemplary embodiment of a connecting element 1 before insertion into a circuit board outlet. The connecting element 1 is shown from a view opposite to the insertion direction E, in which the connecting element 1 is inserted into the circuit board outlet. The connecting element 1 is manufactured in one piece from a non-electrically conductive or insulating material, such as plastic, ceramic, etc. It can be manufactured, for example, by injection molding.

[0029] The connecting element 1 comprises a base body 2 and a counter-support 3. The base body 2 of the connecting element 1 can be inserted into a corresponding opening in a printed circuit board and is designed to prevent the connecting element 1 from rotating after insertion into the circuit board opening. For this purpose, the base body has, for example, a polygonal cross-section (e.g., triangular, rectangular, etc.). In the illustrated exemplary embodiment, the cross-section of the base body 2 is, for example, hexagonal.

[0030] Furthermore, the base body 2 has at least one section 4a, 4b which projects beyond a cross-section of the counter-support 3. In the Figure 1In the exemplary embodiment of the connecting element shown, for example, two such sections 4a, 4b are present on the base form, these being designed, for example, as lugs 4a, 4b. The lugs 4a, 4b are arranged, for example, in the circumferential direction of the base body 2 on opposite sides of the base body 2. The lugs 4a, 4b serve to stabilize the position of the connecting element 1 in the arrangement – ​​this is illustrated by the following Figures 2 and 3This will be explained in more detail below. Furthermore, the lugs 4a, 4b serve as anti-rotation devices, particularly during final assembly of the populated circuit board or when connecting the populated circuit board to another component of the electrical device. The number of sections 4a, 4b of the base body 2 or of the lugs 4a, 4b that project beyond the cross-section of the counter-support 3 can be increased or decreased as required for stability and to ensure anti-rotation resistance. Alternatively, the sections 4a, 4b on the base body 2 can also be designed as locking hooks that engage when inserted into the circuit board outlet, thereby stabilizing the connecting element 1.

[0031] The counter-support 3 of the connecting element 1 is attached to an upper end of the base body 2. The counter-support 3 is designed such that the connecting element 1 can be automatically inserted into the printed circuit board outlet in the insertion direction E, e.g., by SMD assembly, together with the base body 2. For example, a Figure 1 The surface of the counter-support 3, which is not shown in the illustration and also forms an upper end of the connecting element 1, is designed in such a way that the connecting element can be very easily suctioned, transported and placed in the circuit board outlet, e.g. by a suction pipette of a pick-and-place machine.

[0032] Furthermore, the counter-support 3 has at least one section 5a, 5b which projects beyond the polygonal cross-section of the base body 2 of the connecting element 1. In the illustrated embodiment, the counter-support 3 has, for example, a rectangular cross-section and, for example, two sections 5a, 5b which project as cantilevers beyond opposite sides of the base body 2, while those sides of the base body 2 to which the lugs 4a, 4b are attached or on which the lugs 4a, 4b project beyond the counter-support 3 are flush with corresponding side surfaces of the counter-support 3. The cantilevers 5a, 5b of the counter-support 3 prevent, for example, the connecting element 1 from falling through during automated insertion, e.g., by SMD assembly, into the corresponding printed circuit board outlet. Furthermore, the cantilevers 5a, 5b of the counter-support 3 are arranged offset from the sections 4a, 4b or lugs of the base body 2.The projections 5a, 5b do not overlap the sections 4a, 4b or the noses 4a, 4b of the base body 2. In the illustrated embodiment, for example, the noses 4a, 4b of the base body 2 are offset by 90 degrees relative to the projections of the counter-support 3.

[0033] Furthermore, the connecting element 1 is designed to accommodate a fastening element – ​​e.g., pin, rivet, stud, screw, etc. – for connecting the circuit board to the other component of the electrical device. For this purpose, the connecting element 1 has a bore 6, which can be configured, for example, as a blind hole or a through hole. The bore 6 can be, for example, unthreaded or threaded.

[0034] At the in Figure 1In the exemplary embodiment shown, the lower end 7 of the base body 2, in the insertion direction E, is further designed in the form of a hexagonal nut. This allows, for example, a countersunk screw to be inserted into the bore 6 opposite the insertion direction E for the mechanical connection of the printed circuit board to the other device component, such as a housing, of the electrical device. The screw then does not protrude beyond the connecting element 1, for example, after the final assembly of the populated printed circuit board.

[0035] Furthermore, the connecting element 1 is not only made of a non-electrically conductive or insulating material, but the material should also be heat-resistant. That is, the material of connecting element 1 has a melting point that is above a temperature range used in an oven (e.g., an SMD oven) of a manufacturing plant for soldering assembled components onto a printed circuit board.

[0036] It is also possible that the connecting element 1 is made of materials with different heat resistances. For example, the basic shape 2 with its sections 4a, 4b or tabs 4a, 4b can be made of a first material whose melting point is above the temperature range of the oven (e.g., SMD oven) of the production facility. The counter-support 3 of the connecting element 1 can, for example, be made of a second material that has a glass transition temperature within the temperature range of the oven of the production facility. The glass transition temperature is the temperature at which, for example, solid glass or a solid polymer transitions into a rubbery to viscous state. This allows, for example, the counter-support 3 of the connecting element 1 to fuse with the circuit board when passing through the SMD oven – for example, for a better connection.

[0037] Figure 2shows an exemplary and schematic top view of the arrangement according to the invention, which includes the in Figure 1 The illustrated exemplary embodiment of the connecting element 1 comprises. Figure 2 The figure shows a section of a printed circuit board 8, which has been populated with the connecting element 1 and electrical components 9a, 9b, e.g., by SMD assembly. The connecting element 1 is inserted into an outlet in the printed circuit board 8, with the top side of the counter-support 3 visible in the top view.

[0038] The counter-support 3 projects beyond the top surface of the printed circuit board 8 due to sections 5a, 5b extending beyond the base body 2 of the connecting element 1. Only portions of the base body 2 of the connecting element, specifically sections 4a, 4b and lugs 4a, 4b that project beyond the cross-section of the counter-support 3, are visible. The base body 2, including sections 4a, 4b and lugs 4a, 4b, is located below the top edge of the outlet in the printed circuit board 8. The top surfaces of sections 4a, 4b and lugs 4a, 4b of the base body 2 are flush with the top edge of the printed circuit board outlet and do not project beyond it.

[0039] Furthermore, the electrical components 9a and 9b that can be mounted on the circuit board 8 are positioned such that the connecting element 1 is held securely in the circuit board outlet. This means that the mounting of the electrical components 9a and 9b holds the connecting element 1 in the outlet and prevents it from falling out until the assembled circuit board 8 is finally installed in the electrical device. . Components 9a and 9b are mounted on the circuit board such that sections 4a and 4b, or rather the tabs 4a and 4b, of the base body 2 of the connecting element 1 are covered by components 9a and 9b. The mounting of components 9a and 9b on the circuit board 8 can be, for example, removable or permanent. Typically, components 9a and 9b are soldered in an SMD oven and permanently connected to the circuit board 8.

[0040] Figure 3The diagram schematically and exemplarily shows a longitudinal section through the arrangement along the [unclear text] to more clearly illustrate the arrangement. Figure 2 depicted section line AA . In Figure 3 is again the exemplary embodiment of the connecting element 1 from Figure 1 The connecting element 1 is shown. The base body 2 is inserted into an outlet 10 in the printed circuit board 8, e.g. by SMD assembly, in the insertion direction E, with the counter-support 3 projecting beyond a top surface 11 of the printed circuit board 8 or an upper edge of the outlet 10 - due to the in Figure 3Sections 5a, 5b of the counter-support or the projections 5a, 5b, which are not shown in the illustration. The base body 2 of the connecting element 1 with sections 4a, 4b or lugs 4a, 4b lies below the top surface 11 of the circuit board 8 and projects, for example, beyond a bottom surface 12 of the circuit board 8 in order to establish a mechanical connection with another device part, such as a housing, on which the populated circuit board 8 is to be mounted.

[0041] For this mechanical connection with another device component, the connecting element 1 has, for example, a bore 6, which is designed, for example, as a blind hole. A fastening element, such as a pin, stud, or screw, etc., can be inserted into the bore 6 to attach the circuit board 8 to the other device component, opposite to the insertion direction E of the connecting element 1. The lower end 7 of the base body 2 of the connecting element can, for example, be designed such that the fastening element (e.g., screw) does not protrude beyond the connecting element 1 in the fully assembled state of the circuit board. Thus, the end 7 can, for example, have the shape of a nut with chamfered inner edges into which, for example, the head of a fastening element (e.g., screw head, pin head, etc.) can be countersunk.

[0042] To hold the connecting element 1 in a positionally stable manner within the printed circuit board 8, the arrangement comprises at least one electrical component 9a, 9b. In the exemplary embodiment of the arrangement, one electrical component 9a, 9b is provided for each section 4a, 4b or for each lug 4a, 4b of the base body 2. The components 9a, 9b are mounted on the surface 11 of the printed circuit board 8 such that the sections 4a, 4b or the lugs 4a, 4b of the base body 2 of the connecting element 1 are covered by the electrical components 9a, 9b. For example, a first component 9a is attached or mounted over a section of the circuit board outlet 10 in which a first lug 4a of the connecting element 1 is located, and a second component 9b is attached or mounted over a section of the circuit board outlet 10 in which a second lug 4b of the base body 2 of the connecting element 1 is located.Such a mounting – for example, by means of component placement and soldering – holds the connecting element 1 securely in the circuit board 8 and prevents it from falling out. Any electrically conductive and mountable components 9a, 9b (e.g., via SMD assembly), such as resistors, etc., can be used as components 9a, 9b.

[0043] The number of sections 4a, 4b or lugs 4a, 4b on the base body 2 of the connecting element 1 can be increased or decreased as required, for example, depending on the stability requirements and the torsional rigidity of the connecting element 1. This number also determines the number of components 9a, 9b that must be fitted to the sections 4a, 4b or lugs 4a, 4b on the base body 2 of the connecting element 1 to ensure the necessary positional stabilization of the connecting element 1.

[0044] In a very simple, exemplary embodiment of the connecting element 1, which does not correspond to the claimed invention, the base body 2, for example, has no sections 4a, 4b or lugs 4a, 4b, etc., which project beyond the counter-support 3. In this case, the counter-support 3 of the connecting element 1 can, for example, be covered with a suitable electrical component 9a, 9b by means of assembly in such a way that the connecting element 1 is fail-safe or is held in the circuit board 8. Reference symbol list

[0045] 1 Connecting element 2 Base body 3 Counter bracket 4a, 4b Sections of the base body that project beyond a cross-section of the counter bracket or lugs 5a, 5b Sections of the counter bracket that project beyond a cross-section of the base body or cantilever 6 Hole for receiving a fastener 7 Lower end of the base body 8 Printed circuit board 9a, 9b Electrical components 10 Outlet in the printed circuit board 11 Top side of the printed circuit board 12 Bottom side of the printed circuit board Insertion direction A Section line

Claims

1. Assembly, by means of which a circuit board (8), which can be equipped with electrical components (9a, 9b), can be mechanically connected to a further device part, in particular a housing, of an electrical device, wherein the assembly has at least: - a connecting element (1) produced from non-electrically conductive material, which is designed to accommodate a fastening means for a connection to the further device part, and which has at least a base body (2) and a counter support (3), wherein the base body (20) can be inserted into a corresponding outlet (10) in the circuit board (8) and is designed to prevent a rotation of the connecting element (1) after insertion into the circuit board (8), wherein the counter support (3) is attached to an upper end of the base body (2) in the insertion direction (E) and has at least one section (5a, 5b), which projects beyond a cross-section of the base body (2), and wherein the base body (2) also projects beyond a cross-section of the counter support (3) with at least one section (4a, 4b), which section (4a, 5b) is arranged offset with respect to the at least one section (5a, 5b) of the counter support (3); - characterised in that the assembly also has at least one electrical component (9a, 9b), which is attached to the circuit board (8) in a detachable or non-detachable manner so that the connecting element (1) is held in a positionally stable manner in the outlet (10) in the circuit board (8); - the at least one electrical component (9a, 9b) is also attached to the top side of the printed circuit board (8) so that the at least one section (4a, 4b) of the base body (2) of the connecting element (1) is covered by at least one electrical component (9a, 9b); - the at least one section (5a, 5b) of the counter support (3) projects beyond the cross-section of the base body (1) and an upper edge of the outlet so that the connecting element (1) is prevented from falling through the outlet of the circuit board (8) ; - and that the base body (2) of the connecting element (1) lies with the section (4a, 4b) below the top side (11) of the circuit board (8).

2. Assembly according to claim 1, characterised in that the connecting element (1) has a borehole (6) for receiving the fastening means for the mechanical connection to the further device part.

3. Assembly according to one of claims 1 to 2, characterised in that the borehole (6) is designed as a blind hole or as a through hole.

4. Assembly according to one of the preceding claims, characterised in that the base body (2) of the connecting element (1) has a polygon-shaped cross-section.

5. Assembly according to one of claims 1 to 4, characterised in that the at least one section (4a, 4b) of the base body (2) of the connecting element (1), which projects beyond the cross-section of the counter support (3) of the connecting element (1), is designed as a lug.

6. Assembly according to one of claims 1 to 4, characterised in that the at least one section (4a, 4b) of the base body (2) of the connecting element (1), which projects beyond the cross-section of the counter support (3) of the connecting element (1), is designed as a locking hook.

7. Assembly according to one of the preceding claims, characterised in that the counter support (3) of the connecting element is designed so that the connecting element (1) can be automatically inserted into the outlet (10) in the circuit board (8) in particular by means of SMD mounting.

8. Assembly according to one of the preceding claims, characterised in that the connecting element (1) can be established by means of injection moulding, in particular by means of two component injection moulding.