EP2618430A1 - Electrical connecting element and combination comprising an electrical connecting element and a component - Google Patents

Abstract

The element (10) has an electrical contact body (20) extending on sides of a carrier body (50). The electrical contact body comprises two limbs (22, 24). One of the limbs extends transversely to the other limb. An insulating body (60) is coupled to the carrier body. The electrical contact body is arranged on the insulating body, where receptacles (70) are mutually spaced along longitudinal direction of the insulating body. The receptacles insulate contact bodies along the longitudinal or transverse directions of the insulating body.

Description

The invention relates to an electrical connection element and a composite of a connecting element with a component.

It is known that in various electrical devices, such as defibrillators, attachable electrical components or modules are connected. Frequently, individual contact pins are manually connected to corresponding plug contacts. Feedthrough pins to external wirings are unfavorable to weld and require a lavish design and / or separate connection processes.

The invention has for its object to provide a connecting element and a composite, with a connection of a module or an assembly to the connecting element or an electrical device is facilitated.

The object is achieved by the features of the independent claims. Favorable embodiments and advantages of the invention will become apparent from the other claims and the description.

It is proposed an electrical connection element having at least one support body and an electrical contact body which extends to both sides of the support body, wherein the at least one electrical contact body is arranged on an insulating body which is coupled to the carrier body.

Advantageously, the connecting element can be used for connecting an electrical component or an assembly. In particular, the connecting element as Implementation can be used in a housing in which a component or an assembly is to be connected from the outside. The connecting element carries electrical connections from one side of the connecting element transversely to the longitudinal extent to the other side, ie along a height direction of the connecting element. The connecting element can be equipped with contact bodies, which are to produce the electrical connection between two components, transversely to the longitudinal extent and the height direction along a transverse direction on one or both sides at regular intervals or in stages. When equipped in stages, the contact bodies can be arranged in parallel rows, which each have stepped heights.

The connecting element allows a high mechanical stability, which is advantageous for subsequent manufacturing steps and in particular joining steps. Thus, it is possible to attach the contact bodies on the one side of the connecting element in total, for example, with contact surfaces of a printed circuit board, while the areas of the contact bodies on the opposite side can serve as connections, for example for a plug. Optionally, connecting elements may be attached to these areas of the contact body in order to connect a counter element thereto, for example contact lugs, contact springs and the like. Due to the high mechanical stability such connection elements can be easily joined with the contact bodies.

The contact bodies can advantageously be formed by a flat strip material. This allows a flat electrical contact with low contact resistance. Joining with contact surfaces or connection elements can be carried out safely and reproducibly.

According to an advantageous embodiment of the insulating body in its longitudinal direction and transverse to the height direction and transverse direction spaced receptacles for contact bodies, which isolate adjacent contact body against each other in the longitudinal and / or transverse direction of the insulating body. A space-saving and electrically safe arrangement of the contact body is possible. By the insulating body, an electrical creepage distance between adjacent contact bodies can be extended while Reduction of the implementation. A rollover of electrical potentials between different contact bodies can be effectively prevented.

In particular, contact bodies can be arranged on both sides of a dividing wall along the longitudinal extension of the insulating body. This allows a high connection density. The length of the insulating body can be easily adapted to the number of necessary contact body. Furthermore, the contact bodies can serve to fix and position components or assemblies to be connected to the connection element. The connector may be used, for example, for preassembled external wiring of a device or assembly to which a "header" or other components to be connected, such as sensors or the like, may be connected. The so-called header component serves for contacting the electrode. In the header component, e.g. the bushing and external wiring can be arranged and optionally sealed liquid-protected. As a rule, the header component comprises at least one opening with connection bodies or connection sockets, which are electrically connected to the contact bodies via the external wiring.

Advantageously, the receptacles for the contact bodies can be arranged in a grid along the longitudinal extent. Thus, the insulating body can be modular. For the counter-elements of the components to be connected, the electrical connections can be provided in accordance with the same pitch. Standardization of the components or their electrical contacts is possible. The given geometry enables automated processes for connection establishment possible. Joining processes in the manufacture of the connecting element as well as the counter-elements of the components to be connected to this can be simplified

According to a favorable embodiment, the insulating body may extend through the carrier body. The carrier body can in particular serve as a bearing against a housing wall.

According to a favorable embodiment, the insulating body can widen in the region of a passage for the contact body or bodies through the carrier body. This results a particularly stable arrangement and allows electrical insulation of the contact body.

Conveniently, the or can survive the contact body on at least one side of the carrier body via the carrier body and the insulating body. Advantageously, with the distance an electrical insulation can be achieved if an electrical potential across the flange rests against the housing. We do not want that. A distance is necessary for insulation.

According to an advantageous embodiment, one or more contact bodies can have an angled profile with at least two legs, wherein one leg can extend transversely to the other leg. It is advantageous, e.g. an approximately L-shaped profile of the contact body.

According to a favorable embodiment, the carrier body may have at least one positioning device for local positioning of the connecting element. In particular, the positioning device can be aligned with at least one end of the contact body. This allows a good positioning accuracy of the connecting element with respect to a component to be connected, such as a printed circuit board. The positioning device may comprise a positioning pin or a plurality of positioning pins, which may be formed as plug contacts. Alternatively, it can be provided that the pin or pins are joined to the printed circuit board like the contact bodies. In addition, the positioning device can advantageously fulfill a mechanical holding function when it is soldered to the circuit board in SMD technology.

According to a favorable embodiment, the contact body may be formed from a composite material, in particular be composed of two or more metallically conductive materials, for example of pure metals or alloys, and / or be composed of two or more materials. The connection of the materials is usually carried out by material connection or positive connection or a combination of both. However, it is also conceivable to form the contact bodies from a material which consists of a metallically conductive materials, for example from at least one of the group niobium, titanium, Tantalum, gold, stainless steel, platinum, iridium, a nickel alloy such as MP-35N or a mixture of two or more of the substances.

According to a further aspect of the invention, a composite is proposed consisting of a connecting element with at least one of the features described above and an electrical component in the form of a printed circuit board.

According to a further advantageous embodiment of the one leg can serve as an electrical contact for an electrical mating contact of a first electrical component and the other leg can be provided as electrical contact of a second electrical component. In particular, the other leg can be connected to a circuit board. The connecting element is particularly suitable for surface mounting in so-called SMD technology. Thus, the connecting element can be joined to a printed circuit board.

According to a further aspect of the invention, an electrical device is proposed with a connecting element and / or a composite of a connecting element and an electrical component in the form of a printed circuit board.

The invention allows an automated welding and / or soldering process. The insulating body, which forms a web along its longitudinal extent, results in a stable substrate during the joining process, so that the handling of the elements is simplified. The positioning device allows accurate positioning with simultaneous fixation, which facilitates the attachment of a mountable assembly, e.g. a header, or a pre-assembled external wiring or other components to be connected, such as sensors. Furthermore, the positioning can be used for mechanical support of the circuit board. Furthermore, there is the possibility of anchoring an assembly, such as a header, directly on or in a housing via the connecting element.

Fig. 1

eine perspektivische Ansicht einer günstigen Ausgestaltung eines Verbindungselements nach der Erfindung,

Fig. 2a, 2b

eine Draufsicht auf eine Schmalseite des Verbindungselements aus Fig. 1 (Fig. 2a) und einen Längsschnitt entlang der Linie 2b-2b (Fig. 2b);

Fig. 3a, 3b

eine Draufsicht auf die Oberseite des Verbindungselements aus Fig. 1 (Fig. 3a) und einen Schnitt entlang der Linie 3b-3b (Fig. 3b);

Fig. 4

eine Variante eines Verbindungselements mit einseitig angeordneten Kontaktkörpem, die in ihrer Höhe gestuft sind;

Fig. 5a, 5b

eine Ansicht einer günstigen Ausgestaltung eines Kontaktkörpers (Fig. 5a) und eine Vorstufe des Kontaktkörpers bei der Herstellung (Fig. 5b); und

Fig. 6

ein Beispiel eines elektrischen Geräts mit einer Ausgestaltung eines in das Gerät integrierten Verbindungselements, das an eine Außenverdrahtung des Geräts angebunden ist.

The invention is described below by way of example, with reference to exemplary embodiments illustrated in drawings. In a schematic representation:

Fig. 1

a perspective view of a favorable embodiment of a connecting element according to the invention,

Fig. 2a, 2b

a plan view of a narrow side of the connecting element Fig. 1 ( Fig. 2a ) and a longitudinal section along the line 2b-2b ( Fig. 2b );

Fig. 3a, 3b

a plan view of the top of the connecting element Fig. 1 ( Fig. 3a ) and a section along the line 3b-3b ( Fig. 3b );

Fig. 4

a variant of a connecting element with arranged on one side Kontaktkörpem which are stepped in their height;

Fig. 5a, 5b

a view of a favorable embodiment of a contact body ( Fig. 5a ) and a precursor of the contact body in the production ( Fig. 5b ); and

Fig. 6

an example of an electrical device with a configuration of a device integrated in the connecting element, which is connected to an external wiring of the device.

In the figures, functionally identical or equivalent elements are numbered with the same reference numerals. The figures are schematic representations of the invention. They do not form specific parameters of the invention. Furthermore, the figures merely represent typical embodiments of the invention and are not intended to limit the invention to the illustrated embodiments.

The FIGS. 1 . 2a . 2 B . 3a . 3b show various views and sections of a favorable embodiment of a connecting element 10 according to the invention, wherein FIG. 1 a perspective view of a favorable embodiment of an electrical connection element 10 shows, as well as an association of the connecting element 10 with an electrical component, such as a printed circuit board 100, with which the connecting element 10 can be connected, in particular with a joining process. In the embodiment shown contact body 20 are arranged mirror-symmetrically to a center line.

The connecting element 10 has a carrier body 50, which carries an insulating body 60. The carrier body 50 has an upper side 52 and a lower side 54. The insulating body 60 is used for example in an opening 58 of the carrier body 50. It is also conceivable to form insulating body 60 and carrier body 50 in one piece. The insulating body 60 may be suitably formed of ceramic. It is also conceivable to use plastic or other non-conductive materials for the insulating body 60.

The insulating body 60 has a longitudinal extent L in the x-direction, as well as a height direction in the z-direction and a transverse direction in the y-direction. The insulating body 60 includes a longitudinally extending web-like partition wall 66 which is widened at regular intervals by transverse elements 68 in the transverse direction (y-direction) on its two sides 62, 64. The insulating body 60 extends through the carrier body 50, protrudes beyond the top 52 and is also on the underside 54 slightly beyond the bottom 54 addition. The distance can serve for electrical insulation.

The insulating body 60, however, can be aligned with the underside 54 or immersed less deep in the opening 58 as the carrier body 50 is thick as needed.

In the region of the opening 58 of the carrier body 50, the insulating body 60 is widened on both sides 62, 64 and has a region 72 which leads through the opening 58. This improves the guidance of the contact bodies 20 described below. In the longitudinal direction L next to the insulating body 60, a positioning device 90 is arranged, which is formed for example as a pin and is performed in an opening 56 through the support body 50.

The insulating body 60 has receptacles 70 for contact body 20, which are arranged at regular intervals along the longitudinal extent L. The contact bodies 20 extend along the height direction (z-direction) through the insulating body 60 widening on both sides 62, 64 and the carrier body 50. On the upper side 52 of the carrier body 50, a first leg 22 is accessible, on the underside 54 a second Thighs 24.

As in FIG. 1 is indicated, serve the second leg 24 for contacting a device 100, for example, contact surfaces 104 of a printed circuit board 102, with which the connecting element 10 can be joined together via the contact body 20 into a composite. The printed circuit board 102 may, for example, lines or integrated Contain circuits or even in SMD technology have surface mounted electrical components.

The positioning device 90 may be arranged so that its lower end 92 is aligned with the underside of the second leg 24 of the contact body 20. As a result, an additional holding function can be provided, since the positioning device in SMD technology can be soldered to a corresponding contact surface 104 of the printed circuit board 102. The upper end 94 may project beyond the insulating body 60 and serve for the positioning of elements to be connected to the connecting element 10. A widening 96 at the upper end 94 serves for better handling and by the undercut at the lower end of the broadening of the mechanical anchoring, for example, for anchoring the potting compound or the plastic of the header component (not shown).

The contact bodies 20 are arranged, for example, on both sides 62, 64 of the insulating body 60 and preferably made of a flat strip material.

FIG. 4 shows a variant of a connecting element 10 with stepped rows of contact bodies 20 which are arranged at the same height in the respective row, wherein the rows are arranged parallel to the web-like partition 66 of the insulator 60, and wherein the different rows are each graded in height with increasing height from outside to inside. Parallel to the web-like partition wall 66, an outer wall 66a is arranged such that the rows of contact bodies 20 are arranged on one side of the web-like outer wall 66a and thus on one side with respect to a broad side of the insulating body 60. As a result, it is advantageously possible to mount parts to be joined from one side.

The contact bodies 20 each have an L-shaped profile, as in the FIG. 5a is shown in more detail. The contact body 20 has a first leg 22 and a leg 24 arranged transversely thereto and is preferably formed from a flat strip material. However, the contact body 20 may also have other profiles, for example, be formed from a straight strip material.

The material of which the contact body 20 is formed is metallically conductive and may be, for example, a metal, a metal mixture or an alloy. Further, the contact body 20 may be formed of a composite material composed of two or more material bodies. For example, bands may be joined together along their lateral edges, for example welded, as in FIG FIG. 5b is indicated. Likewise, bands can be connected to each other at their flat sides. The tapes can also be completely or partially coated, for example, as solderable components pre-tinned.

The contact elements 20 may be firmly inserted into the openings 68 of the insulating body 60, for example, soldered, glued, injected, welded or overmolded. Due to the rastermaßartige arrangement along the insulating body 60, the number of terminals of the connecting element 10 can be easily extended, in particular, the insulating body 10 may be modular.

Due to the flat strip material of the contact body 20 and the insulating body 60, a sufficiently stable pad for a secure joining process or a spring contacting of the connecting element 10 is formed. The connecting element 10 can be soldered using SMD technology. The positioning device 90 provides a convenient fixation for the printed circuit board 102.

FIG. 6 illustrates a favorable embodiment of an electrical device 110, which has a connecting element 10 and / or a composite of connecting element 10 and a component 100, for example a printed circuit board 102. At the contact bodies 20 extensions 120 are attached, which form an external wiring of the device 110 to which, for example, function modules, components such as sensors, etc. can be connected.

Claims (15)

An electrical connection element (10) which has at least one carrier body (50) and one electrical contact body (20) which extends to both sides (52, 54) of the carrier body (50), wherein the at least one electrical contact body (20) adjoins a Insulating body (60) is arranged, which is coupled to the carrier body (50). Connecting element according to claim 1, wherein the insulating body (60) in its longitudinal direction (L) spaced receptacles (70) for contact body (20), which adjacent contact bodies (20) against each other in the longitudinal and / or transverse direction of the insulating body (60) insulate , Connecting element according to claim 1 or 2, wherein contact bodies (20) on both sides (62, 64) of the insulating body (60) are arranged. Connecting element according to claim 1 and 2, wherein the contact body (20) are arranged on one side based on a broad side of the insulating body (60) and / or arranged in a stepped manner to each other. Connecting element according to one of the preceding claims, wherein the receptacles (70) for the contact bodies (20) are arranged in a grid along the longitudinal extent (L). Connecting element according to one of the preceding claims, wherein the insulating body (60) extends through the carrier body (50). Connecting element according to one of the preceding claims, wherein the insulating body (60) widened in the region of a passage (58) for the contact body or bodies (20). Connecting element according to one of the preceding claims, wherein the contact body or bodies (20) protrude beyond the carrier body (50) and the insulating body (60) on at least one side (54) of the carrier body (50). Connecting element according to one of the preceding claims, wherein one or more contact bodies (20) have an angled profile with at least two legs (22, 24), wherein a leg (24) extends transversely to the other leg (22). Connecting element according to one of the preceding claims, wherein the carrier body (50) has at least one positioning device (90) for local positioning of the connecting element (10). The connector of claim 10, wherein the positioning means (90) is at least at one end in alignment with the contact body (20). Connecting element according to one of the preceding claims, wherein the contact body (20) is formed of a composite material. Composite of a connecting element (10) according to one of the preceding claims and an electrical component (100) in the form of a printed circuit board (102). Composite according to claim 13, wherein the one leg (24) of the contact body (20) or the contact body (20) serves as electrical contact for an electrical mating contact (104) of the electrical component (100) and is joined thereto. Electrical device (110) with a connecting element (10) according to one of claims 1 to 12 and / or a composite according to claim 13 or 14.

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