EP3357127B1 - Contact lamella part - Google Patents

Description

The invention relates to a contact lamella part for transmitting an electrical current or an electrical signal between a first contact element and a second contact element which can be coupled thereto, according to the preamble of claim 1. The contact lamella part has a plurality of contact lamellae extending in each case substantially parallel to one another in a longitudinal direction, each having one Contact zone for contacting the first contact element and / or the second contact element.

The first contact element is, for example, a contact socket into which the second contact element in the form of a contact pin or contact plug for coupling in a plug-in direction is insertable, wherein the contact plate part forms a current flow path between the contact socket and the contact plug.

Furthermore, the application relates to a connector with such a contact blade part.

Contact blade parts having a plurality of contact blades for transmitting electrical currents or signals between two contact elements are known. Regularly, the contact blades are set up so elastically or flexibly that they are in the coupling state under a mechanical bias closely against at least one of the contact elements to ensure in this way a low contact resistance between the contact blade part and the contact element.

As in Fig. 6 Shown contact lamella parts in the manner of a lamellar cage 620 may be held in the interior of a contact socket 600 such that the contact lamellae of the contact lamella part project at least in sections into a receiving space for receiving a contact pin 610. For this purpose, for example, have centrally arranged contact portions of the contact blades on a radially inwardly projecting bend. Now, when the complementary to the contact bush 600 formed contact pin 610 is inserted into the receiving space, the contact blades are elastically deformed radially outward and are then in a Verkupplungszustand under a mechanical bias closely to the contact pin 610.

However, it has been found that comparatively high insertion forces are required for the coupling of connectors which are equipped with such contact blade parts, since the contact blades must be elastically deformed. Furthermore, in particular for the transmission of high electrical currents or for the transmission of high-frequency signals, a particularly low contact resistance is required, which can not be permanently provided in a reliable manner by means of conventional contact blade parts.

In view of the described problems, it is the object of the present invention to provide a suitable for the transmission of high current or RF signals contact blade part, which also allows a particularly simple installation.

This object is achieved by a contact blade part with the features characterized in claim 1.

Advantageous developments of the invention are described in the dependent claims.

A contact blade part according to the invention is characterized in that the contact zone of a first contact blade is arranged offset in the longitudinal direction to the contact zone of a second contact blade.

The contact zone of a contact lamella can be understood as that section along the longitudinal axis of the contact lamella in which the contact lamella bears in a coupled state under elastic prestressing on at least one contact element such as a contact pin or on both contact elements such as a contact pin and a contact socket. In this case, the contact blade in the contact zone can be elastically deformable transversely to its longitudinal direction, so that it is pressed under mechanical bias in close contact with at least one of the contact elements when coupling the first contact element and the second contact element, between which acts the contact blade, in particular both contact elements is pressed.

For example. the contact blade in its contact zone a bend, curvature, torsion, tilting, twisting, inclination or the like. so that it protrudes in the contact zone at least in sections from a lamellar plane out, said projecting portion is provided for contacting at least one contact element under mechanical bias. A lamellar plane is understood in this context to mean a plane which is spanned by the longitudinal axis of the contact lamella and a transverse axis in the direction of the lamella width.

In a staggered arrangement in the longitudinal direction of the contact zones of two contact blades, there is at least one cutting plane perpendicular to the longitudinal axis, which intersects only the contact zone of one of the two contact blades. In other words, the contact zone of the first contact lamella in the lamella longitudinal direction does not extend over the same longitudinal section as the contact zone of the second contact zone. In particular, the contact zone is the first Contact blade arranged offset to the contact zone of the second contact blade such that there is no cutting plane perpendicular to the longitudinal axis, which intersects both contact zones. In other words, the contact zone of the first contact blade in the longitudinal direction has already stopped when the contact zone of the second contact blade begins. Alternatively, the contact zones of the two contact blades run side by side only over a predetermined section in the longitudinal direction.

The distance between the contact zone of the first contact blade (or the point of the contact zone, the furthest out of the lamellar plane) and the contact zone of the second contact blade (or that point of the contact zone, the furthest out of the lamellar plane) in the longitudinal direction more than 10%, preferably more than 20%, in particular 40% or more of the total length of the contact lamellae.

The invention is based on the knowledge that in conventional contact blade parts, the contact zones of all contact blades lie in the same cutting plane, in particular in each case in the middle of the respective contact blade. During the coupling process, therefore, the contact zones of all contact blades must be elastically deformed simultaneously, so that they are brought into close contact with the contact element. For this reason, a particularly high insertion force must be applied at a certain time, whereby the assembly process is difficult. By contrast, in the contact lamella part according to the invention, the contact zones of individual contact lamellae are offset from one another in the longitudinal direction, so that initially the first contact lamella and only then the second contact lamella are elastically deformed during the coupling process. As a result, the maximum insertion force to be applied can be reduced and in particular halved, and at the same time a good contact resistance can be provided.

Since in the contact blade part according to the invention further the contact zones of two contact blades lie in two spaced apart in the longitudinal direction of the slats cutting planes, not only a good electrical contact, but also a reliable mechanical connection between the Contact lamellae part and the contact elements are provided, since along the longitudinal axis of the contact blades at least two spaced contact points is provided, against which the contact blade rests against the contact element. A Verkupplungszustand between the two contact elements can be stabilized.

With regard to a reliable electrical contact between the contact zones of the contact blades and the contact elements to be contacted with it, it has proven to be expedient that the contact blades are twisted at least in the region of their contact zones each about its own longitudinal axis and / or tilted.

A torsion about its own axis is understood to mean a torsion, a rotation and / or a tilting of the contact lamella in the course of its longitudinal extent. For example, torsion may be provided by a first cross-sectional area of the contact blade in a first cross-sectional plane perpendicular to the longitudinal axis substantially corresponding to a second cross-sectional area of the contact blade in a second intersecting sectional plane but rotated by a predetermined angle with respect to the first cross-sectional area or tilted.

For example. at least in sections, the contact blade has the form of a web with a predetermined web width in a width direction, wherein the web is increasingly tilted in the course of the longitudinal axis of the contact blade with respect to the original width direction. In some embodiments, the width direction of the web in a non-tilted land portion and the longitudinal axis of the land define the fin plane, the land being progressively tilted along its length relative to the fin plane, for example, up to a tilt angle greater than 5 ° and less than 90 ° °, in particular more than 15 ° and less than 45 °. The maximum tilt angle relative to the fin plane, the contact blade preferably in the contact zone, which is provided for contacting the first contact element and / or the second contact element.

In this case, the longitudinal axis of the contact lamella in each sectional plane preferably runs essentially through the lamella center. In other words, the contact blade does not have in its longitudinal direction as a whole a curved or curved course, but a straight, but twisted around its own axis course. Alternatively, in accordance with the invention, a curve of the contact blade which is simultaneously twisted about its own axis and which is curved with respect to the longitudinal axis is conceivable. In the case of a curved contact blade also has the longitudinal direction L of the contact blade a curved course, which follows the curved longitudinal extent of the contact blade.

Contact blades with respect to the longitudinal axis curved or curved course have widely spaced contact points for contacting the two contact elements. So contacted the in Fig. 6 shown contact blade part in the coupling state, the contact pin in the middle of the contact blades and the contact socket at the two ends of the contact blade part in the longitudinal direction. In this case, the current-carrying path runs from the middle of the contact blades in the longitudinal direction of the contact blades to the two ends of the contact blade part. This can lead to a comparatively high contact resistance through the contact lamella part and thus possibly associated heating and losses.

In contrast, twisted or tilted contact lamellae about their own longitudinal axis are suitable in a small space, namely in the region of the contact zone, both for contacting the first contact element and for contacting the second contact element. This is because a first side edge of the tilted contact zone is disposed on the opposite side of the fin plane as the second side edge of the contact zone, so that the current guide path can extend substantially in a transverse direction through the contact blades.

In a particularly preferred embodiment, the contact blade in the contact zone is tilted such that the current-carrying path extends in a width direction from the first side edge of the contact zone to the second side edge of the contact zone, the first side edge being the first Contact element and the second side edge in substantially the same sectional plane electrically contacts the second contact element.

The first contact lamella is preferably the contact lamella adjacent to the second contact lamella. In other words, the first contact blade contacts at least one of the contact elements in a different cutting plane than the immediately adjacent second contact blade, which can run parallel to the first contact blade. As a result of this "equalization" of the current flow paths provided by directly adjacent contact blades, local heating of the contact blade part and / or the contact elements can be reduced, which makes the contact blade part suitable for transmitting high currents.

According to a particularly preferred embodiment, the contact zones of the contact blades are arranged alternately in two spaced apart and perpendicular to the longitudinal direction extending contact planes. In other words, the contact zones of two adjacent contact blades are arranged in different cutting planes. In each case, the contact planes intersect that point of the respective contact zone at which the contact zone protrudes furthest out of the lamellar plane. The distance between the two contact planes in the longitudinal direction may be more than 5 mm and less than 5 cm, in particular more than 1 cm and less than 3 cm, which may correspond to more than 40% of the total length of the contact blades. The alternating arrangement of the contact zones of adjacent contact blades improves on the one hand a coupling stability and on the other hand minimizes the insertion force required for a coupling, since this is to be applied at two spaced plug positions each with approximately half the reduced total amount.

In some embodiments, the contact zones of the contact blades are not simply arranged alternately (XYXYXY etc.) in different contact planes, but in a different sequence. For example. the contact zones are provided in a multiply alternating (for example XXYYXXYY etc.) or a non-alternating sequence (for example XYYXXX etc.). The term "alternating" used in the present application also encompasses a multiple alternating sequence.

An inventive contact blade part can also be used for screen transfer between a first contact element and a second contact element. In this context, it has proved to be advantageous for a first subset of the contact blades to have a first predetermined width course along its longitudinal axis and a second subset of the contact blades a second predetermined width course along the longitudinal axis, which differs from the first width course. In certain embodiments, the width profile of the first subset of contact lamellae essentially represents a reversal of the first width profile of the first subset of contact lamellae.

In this case, the contact blades of the first subset and the contact blades of the second subset can be provided alternately. In other words, in each case two adjacent contact blades along the longitudinal direction have a deviating from one another and in particular an approximately inverted width profile. For example. The contact blades of the first subset taper starting from the one end of the contact lamella part to a predetermined extent, while the contact lamellae of the second subset widen from the same end of the contact lamella part in the predetermined dimension.

It has been found that such an alternating width profile of adjacent contact blades can lead to an improved shielding effect, in particular if the contact disk part is designed in the form of a preferably closed disk cage, which can circulate at least one signal-carrying conductor. If two adjacent contact blades change their width profile side by side to the same extent, this leads to a particularly abrupt change in a shielding provided by the contact blades or to a wave impedance change over a short distance. An alternately changing width profile of adjacent contact blades "equalizes" such jumps in the shield and overall leads to a more constant wave impedance over the longitudinal extent of the contact blade part.

According to the invention, the contact lamellae each have a torsion bar extending from a first end of the lamella and progressively tilting out of a lamellar plane up to the contact zone, the lamellae plane being a tangential plane to a non-tilted surface of the torsion bar. Such so-called contact blades with "torsion spring principle" allow a particularly low contact resistance and defined contact points on the two contact elements with a short current path over the individual slats.

In this case, in terms of ease of assembly preferably the torsion bars of at least two adjacent contact blades, in particular of all contact blades, with respect. Their lamellar planes tilted in the same direction about their respective longitudinal axes.

With regard to an overall good shielding effect by the contact blade part, it has proved to be advantageous that the torsion bar at least in the region of the contact zone has a first width and merges in the direction of the other fin end in a connecting rod with a second width, which is smaller than that first width, in particular less than half as wide. A comparatively wide torsion bar with a small web thickness offers a torsion module which is particularly suitable for torsion about its own axis. A tapering of the web width towards a thin connecting rod following the contact zone to be twisted during the coupling operation improves the twistability of the contact zone and thus facilitates the coupling operation.

Preferably, the two connecting rods of two adjacent contact blades are offset from one another in the longitudinal direction in such a way that no cutting plane running perpendicular to the longitudinal direction intersects both connecting rods. In this way it is prevented that between two adjacent contact blades at least partially a wide slot is formed, which may have a negative effect in terms of a good shielding effect.

With regard to a good shielding effect, it has proven expedient that the torsion bar preferably has a substantially constant Width over more than half, in particular over more than 75% of the total length of the contact blade extends. A long torsion bar simplifies the rotatability or tiltability of the contact blades during the coupling process. A constant width and in particular a constant cross-sectional area of the torsion bar allow a uniform distribution of stress along the contact blades to the contact zone, which can each form one end of the torsion bar on which the torsion bar can pass into the narrower connecting rod.

Thus, the contact blades can be divided into two areas with different cross-section, namely the torsion bar and the connecting rod, the torsion bar holds the one area elastic and the connecting rod can allow a shortened design.

In view of a low contact resistance between the contact blade part and the contact elements in providing a short current path over the contact blade part, it has proven to be expedient that the contact zones of the contact blades each have a first side edge for contacting the first contact element under elastic bias and / or a second side edge have on the opposite side of the longitudinal axis of the respective contact blade for contacting the second contact element under elastic bias.

A particularly short current path can be provided by a geometric connecting line between the first side edge of the contact zone (or the point farthest from the lamellar plane of the contact zone on one side of the lamellar plane) and the second side edge (or the farthest from the lamella plane distant point of the contact zone on the other side of the lamellar plane) is substantially perpendicular to the longitudinal direction.

With regard to the provision of a compact component which can be introduced in a simple manner between two contact elements, it has proven to be advantageous for the contact blades to be respectively between a first connecting body, such as a first carrier strip or carrier ring and extending one of the longitudinally spaced second connecting body, such as a second carrier strip or carrier ring. The support ring is not necessarily round, but may also have a polygonal geometry, for example a quadrangular geometry, in particular a rectangular or square geometry or an oval geometry. Preferably, the carrier ring is round, in particular circular.

The contact blades can connect the two connecting bodies together. For example. The individual contact lamellae each extend at equal distances to the respectively adjacent two contact lamellae between the two connecting bodies. The connecting bodies may be provided as transverse, in particular perpendicular to the longitudinal direction of the contact blades extending transverse webs, in particular as carrier rings or carrier strip.

In some embodiments, the contact blades and the connecting bodies each enclose an angle of 90 ° between them. Such embodiments may be formed as a straight lamellar cages. In other embodiments, the contact blades each extend at an angle to the connecting bodies. For example. the angle between the longitudinal axis of the respective contact blade and the direction of extension of the connecting body formed as a carrier strip is more than 45 ° and less than 90 °, in particular more than 75 ° and less than 90 °. Such embodiments may be formed as inclined lamellar cages. In the case of oblique lamellar cages, the longitudinal direction of the contact lamellae in each case does not run perpendicular to the extension direction of the carrier strips, and the individual contact lamellae do not run exactly parallel to one another due to the curvature of the longitudinal axes L of the contact lamellae due to the oblique position, but essentially parallel to one another.

Lamella cages do not necessarily have a circular geometry in cross section, but may also be oval or angular. For example. can a quadrangular geometry of the lamellar cage for contacting a contact blade in a square socket or the like. be provided.

The one end of each contact blade may be connected to the first connection body, and the opposite second end of each contact blade may be connected to the second connection bodies, so that the entirety of the contact blades can be stably held together by the two connection bodies. The contact lamella part can be made as a one-piece or one-piece component, for example, from metal. For example. the contact lamella part can be formed as a metal stamped part. A carrier ring may be a completely encircling ring element or a partially encircling ring element which, for example, revolves at an angle of more than 180 °, in particular more than 270 °.

With regard to the provision of a compact component, it has also proved to be expedient that the contact blades for forming a lamella cage or lamellar cage are provided at least in sections in a peripheral circumferential arrangement, in particular in a substantially (partially) annular arrangement. A contact lamellae part designed as a (partially) annular lamellar cage can, for example, be received in a cylindrical socket (first contact element) into which a cylindrical contact pin (second contact element) can be inserted. Further, as a (partially) annular lamellar cage formed contact lamellae can be arranged on a cylindrical contact pin for coupling with a socket. The longitudinal direction of the contact blades corresponds to the Verkupplungsrichtung in which the contact pin is inserted into the contact socket.

A circumferentially at least partially or completely circumferential contact blade part can be prepared by the two ends of an initially flat arrangement of two carrier strips with intervening contact blades are approximated or interconnected, so that a circumferential arrangement of contact blades.

In accordance with another aspect of the present invention, a connector is provided.

According to a first possible embodiment, the connector has a contact socket for coupling with a contact pin, wherein in the contact socket a contact blade part is held according to one of the preceding claims.

According to a second possible embodiment, the plug connector has a contact pin for coupling to a contact socket, wherein a contact disk part according to one of the preceding claims is held on the contact pin.

The contact pin or the contact socket may have a substantially cylindrical shape, and the contact blade part may be formed in the form of a part-annular or annular lamellar cage. Alternatively, the contact pin may be in the form of a contact blade and the contact socket in the form of a square socket. In this case, the contact blade part in cross section have a polygonal contour.

The contact pin can thereby be verkuppelbar with the contact socket, that it is inserted in a direction parallel to the longitudinal axes of the contact blades insertion direction into the contact socket until the contact zones of the contact blades of the contact blade part both the inner wall of the contact socket and the outer wall of the contact pin electrically and under mechanical Contact bias.

Preferably, the contact zones of the contact blades are respectively twisted or tilted about their respective blade axis, that their first, radially outwardly directed side edges are provided for electrically contacting an inner wall of the contact socket and its second, radially inwardly directed side edges in a circulated by the contact blade part Inner volume for receiving the contact pin protrude.

• Fig. 1 eine erste Ausführungsform nicht erfindungsgemäßen Kontaktlamellenteils in einer schematischen Ansicht,
• Fig. 2 eine zweite Ausführungsform eines erfindungsgemäßen Kontaktlamellenteils in einer schematischen Ansicht,
• Fig. 3A eine dritte Ausführungsform eines erfindungsgemäßen Kontaktlamellenteils in einer perspektivischen Ansicht,
• Fig. 3B die in Fig. 3A gezeigte Ausführungsform in einer Ansicht von vorne,
• Fig. 4 die in Fig. 3A gezeigte Ausführungsform eines erfindungsgemäßen Kontaktlamellenteils zusammen mit einem Kontaktelement in Form eines Kontaktstifts,
• Fig. 5A einen erfindungsgemäßen Steckverbinder mit einem in einer Kontaktbuchse aufgenommenen Kontaktlamellenteil,
• Fig. 5B den in Fig. 5A gezeigten Steckverbinder in einer perspektivischen Ansicht, und
• Fig. 6 einen Steckverbinder mit einem herkömmlichen Kontaktlamellenteil.

In the following description, the invention will be explained with reference to the accompanying drawings. It shows:

• Fig. 1 1 is a schematic view of a first embodiment of a contact-lamella part not according to the invention;
• Fig. 2 A second embodiment of a contact blade part according to the invention in a schematic view,
• Fig. 3A A third embodiment of a contact blade part according to the invention in a perspective view,
• Fig. 3B in the Fig. 3A shown embodiment in a front view,
• Fig. 4 in the Fig. 3A shown embodiment of a contact blade part according to the invention together with a contact element in the form of a contact pin,
• Fig. 5A a connector according to the invention with a received in a contact socket contact blade part,
• Fig. 5B the in Fig. 5A shown connector in a perspective view, and
• Fig. 6 a connector with a conventional contact blade part.

In Fig. 1 a first embodiment of a contact blade part 100 according to the invention is shown in a schematic view. The contact blade part 100 consists of two connecting bodies 250, 251 running in a transverse direction in the form of carrier strips, between which a plurality of mutually parallel contact blades 120, 121 each extend in a longitudinal direction L. The connecting bodies 250, 251 extend in each case in the lamellar plane and are designed as carrier strips.

The contact blades 120, 121 each extend from the first connecting body 250 to the second connecting body 251 and are in one piece with the two connecting bodies, for example, as a stamped metal part or the like. educated. Adjacent contact blades 120, 121 each have the same distance from one another in the transverse direction.

The contact blade part 100 is provided for transmitting an electric current or signal between a first contact element and a second contact element (not shown). For this purpose, each contact lamella has a contact zone 130, 131 projecting from the lamellar plane, which is provided for contacting at least one contact element under prestressing. At the in Fig. 1 In the illustrated embodiment, the contact zones 130, 131 are respectively formed as bulges or bends of the contact blades, which are resilient so that they are elastically deformable in the direction of the lamellar plane when the contact lamellae part is received between two (planar) contact elements.

In this case, the contact zone 130 of a first contact blade 120 in the longitudinal direction L is offset from the contact zone 131 of a second contact blade 121, which is the contact blade of the first contact blade 120 adjacent. The first contact zone 130 or the point of the first contact zone furthest from the lamellar plane is cut by a first contact plane E1 running perpendicular to the longitudinal axis, and the second contact zone 131 or the point of the second contact zone farthest from the lamella plane is interrupted by a second perpendicular to the longitudinal direction L extending contact plane E2 cut, which is removed by a predetermined distance A1 along the longitudinal direction L of the first contact plane E1. The distance A1 can be greater than 10% of the total length of the contact blades, in particular greater than 40% of the total length of the contact blades.

The contact zones 130, 131 of two adjacent contact blades 120, 121 are each arranged in different contact planes E1, E2, so that an alternating arrangement of contact zones is formed along the transverse direction.

In the illustrated embodiment, the two formed as a carrier strip connecting body 250, 251 extend perpendicular to the longitudinal axes L of the contact blades. By ringing the in Fig. 1 illustrated carrier strip with the intervening contact blades a straight lamellar cage is formed.

In other embodiments according to the invention (not shown), the longitudinal axes L of the contact blades each extend at an angle (for example an angle between 45 ° and 90 °) to the mutually parallel carrier strips. By annular rolling of the two carrier strips then an oblique lamellar cage is formed.

A particularly preferred embodiment of the invention is in Fig. 2 shown. Shown is a contact blade part 200 according to the invention in a schematic representation.

The contact lamella part 200 also has a plurality of contact lamellae 220, 221 extending approximately parallel to one another, each extending between a first connection body 250 in the form of a carrier strip and a second connection body 251 in the form of a carrier strip.

The contact blades 220, 221 each extend web-like in a longitudinal direction L, while the connecting bodies 250, 251 formed integrally therewith extend approximately perpendicular thereto in the transverse direction. The transverse direction and the longitudinal direction span a lamellar plane, which here corresponds to the plane of the paper. By ringing the in Fig. 2 illustrated carrier strip with the intervening contact blades a straight lamellar cage is formed.

In other embodiments according to the invention (not shown), the longitudinal axes L of the contact blades each extend at an angle (for example an angle between 45 ° and 90 °) to the mutually parallel carrier strips. By annular rolling of the two carrier strips then an oblique lamellar cage is formed.

Each contact blade 220, 221 has a contact zone 230, 231 for contacting in each case two contact elements.

The contact blade part 200 is provided for arrangement between the two contact elements for transmitting an electric current between the contact elements. In this case, the one contact element contacts the contact zones of the contact blades from one side of the slat plane, and the other contact element contacts the contact zones of the contact blades from the other side of the slat plane.

The contact blades 220, 221 are for this purpose designed in the manner of torsion springs, which are each tilted or inclined at least in the region of their contact zones 230, 231 about their own longitudinal axis A. A first side edge of the contact zones thus lies on one side of the lamellar plane (above the plane of the paper) and serves for contacting the first contact element under elastic pretension, and a second opposite side edge of the contact zones lies on the other side of the lamella plane (below the plane of the paper) and serves for contacting the two contact element under elastic bias. As a result, a particularly short current path is provided, which leads substantially perpendicular to the longitudinal direction L via the contact blades.

The contact zones 230, 231 of each two adjacent contact blades are arranged offset to one another in the longitudinal direction. This results in a total of an alternating arrangement of contact zones in the direction of extension of the connecting body 250, 251st
In other words, the contact zone 231 of a first contact lamella 221 (or the point of the contact zone farthest from the lamellar plane) is cut by a first contact plane E1, and the contact zone 230 of a second contact lamella 220 (or farthest from the lamella plane) Point of the contact zone) is cut by a second contact plane E2, which is spaced from the first contact plane E1, wherein the Distance A1 may be greater than 25% of the total length of the contact blades, in particular may be greater than 50% of the total length of the contact blades.

The contact blades 220, 221 each have, on the one hand, a torsion bar 225 having the contact zones with a first width B1 in the transverse direction and, on the other hand, a thinner connecting rod 226 with a second width B2 in the transverse direction. The torsion bar 225 extends in each case from one of the connecting bodies 250, 251 in the direction of the other connecting body 251, 250 up to the contact zone in which it is tilted. Subsequent to the contact zone, the torsion bar 225 in each case passes into the connecting rod 226, which connects the torsion bar to the other connecting body, thereby stabilizing the torsion bar and allowing its elastic deformation transversely to the slat plane.

Two adjacent contact blades each have a reverse width profile. For example. For example, the torsion bar of the first contact blade 220 is connected to the first connection body 250, and the connection bar of the first contact blade 220 is connected to the second connection body 251. Conversely, the connecting rod of the second contact blade 221 is connected to the first connecting body 250 and the torsion bar of the second contact blade 221 is connected to the second connecting body 251. This results in an alternating width profile of the contact blades, which leads to a contact blade with particularly good shielding effect, since the thin and thus a large gap generating connecting rods 226 are each arranged offset from one another.

The torsion bars 250 may each extend over more than half, in particular over more than 75% of the total length of the contact blades and preferably have a substantially constant web width.

In the FIGS. 3A and 3B a third preferred embodiment of the invention is shown in the form of a straight lamellar cage. Fig. 3A shows a contact blade part 200 according to the invention in a perspective view, and Fig. 3B shows the contact blade part 200 in a front view.

The contact lamella part 200 is designed in the manner of a lamellar basket, which at least partially revolves in a circumferential direction U. In this case, a plurality of each extending in a longitudinal direction L contact blades 220, 221 in the circumferential direction U are arranged side by side. The contact blades 220, 221 each extend from a first connecting body 250 in the form of a partial ring or ring segment to a second connecting body 251 in the form of a partial ring or ring segment.

This in Fig. 3a shown contact lamella part can by annular bending of the in Fig. 2 shown flat contact blade part are made, so that with regard to the arrangement and structure of the contact blades 220, 221 can be made to the above explanations.

In particular, the contact blades are each twisted or tilted about their own axis, at least in the region of their contact zones 230, 231. Each contact blade has a torsion bar 225 which, starting from a contact blade end, is increasingly tilted relative to a blade plane, wherein the region of maximum tilting defines the contact zone of the respective contact blade. The lamellar plane is defined by a tangential plane to a non-tilted radial outer surface of the torsion bar.

As with the in Fig. 2 embodiment shown, the contact zones of two adjacent contact blades in the longitudinal direction L are arranged offset to one another, so that there is an alternating arrangement of the contact zones in the circumferential direction. Instead of the illustrated alternating arrangement of the contact zones, a different sequence of contact zones in the circumferential direction may also be provided.
The contact blade part 200 is provided for transmitting an electric current between a first contact element such as a contact socket and a second contact element such as a contact pin. The radially outwardly projecting first side edges 240 of the contact zones 230, 231 are for contacting an inner wall of the contact bush under mechanical prestressing, and the second side edges 241 of the contact zones 230, 231 projecting inwards into an inner volume of the lamella basket are provided for contacting an outer wall of the contact pin under mechanical prestressing. This is in Fig. 3B particularly clear. Furthermore, in Fig. 3B recognizable that the torsion bars of the contact blades with respect to their respective slats planes are each tilted in the same direction about their respective longitudinal axes A.

Fig. 4 shows the in Fig. 3A illustrated embodiment of a contact blade part 200 according to the invention together with a contact element in the form of a contact pin 520. The contact pin 520 is inserted for coupling in a plug-in direction S in an inner volume of the partially annular contact blade part 200.

In the course of the coupling operation, the contact zones 230 of the first contact blades 220, which are tilted with respect to the circumferential direction U, are first of all elastically deformed by being urged radially outward by the outer wall of the contact pin 520 and thereby partially back-twisted. Only then the contact zones 231 of the second contact blades 221, which are also tilted with respect to the circumferential direction U, are elastically deformed, which are offset in the longitudinal direction L, which corresponds to the plugging direction S, from the contact zones 230 of the first contact blades 220 by a distance A1. This facilitates the coupling process.

Fig. 5A shows a connector 500 according to the invention with a received in a contact socket 510 contact blade portion 200. The contact blade portion 200 may radially outwardly projecting projections such as lugs 512, by means of which the contact blade portion 200 can be fixed in the contact socket 510. Fig. 5B shows the in Fig. 5A shown connector 500 in a perspective view.

The contact socket 510 is substantially hollow cylindrical in shape and serves to insert a complementarily shaped contact pin 520 in the plugging direction S.

The contact lamella part 200 has a plurality of contact lamellae 220, 221 arranged side by side in a circumferential direction U and extending in the plugging direction S, whose contact zones are tilted about the respective lamellar axis in such a way that their first side edges 240 for electrically contacting an inner wall of the contact lamella part Contact socket 510 are provided and their second side edges 241 protrude into a circumvented by the contact blade part inner volume 550 for receiving the contact pin 520.

The contact zones of adjacent contact blades are each offset in the direction of insertion. Furthermore, the width profiles of adjacent contact blades are each provided essentially in the opposite direction. In this way, on the one hand, a simple coupling process can be made possible. On the other hand, a small contact resistance can be made possible due to the short current paths, so that the contact blade part according to the invention is suitable for the transmission of high current. Furthermore, a good shielding effect can be provided, so that the contact lamella part according to the invention can be used for transmitting signal or for shielding one or more signal conductors.

Instead of the simple alternating arrangement of the contact zones of adjacent contact blades 220, 221 in two contact planes shown in the figures, a different sequence can also be provided. If those contact lamellae whose contact zones are in the first contact plane E1 are denoted by X, and those contact lamellae whose contact zones are in the second contact plane E2 are denoted by Y, then in the direction of extent the carrier strip U can instead of simply be alternating sequence XYXYXY shown in the figures, a double alternating sequence XXYYXXYY or a multiple alternating sequence XXXXYYYXXXXYYYY or the like. be provided. Alternatively, an asymmetrically alternating sequence may be XYYXYY, XXYXXY, XYYYXYYY, XXXYXXXY or the like. be provided. Further alternatively, the sequence of the contact blades X and the contact blades Y is not alternating, for example. XYYXXYYY or the like. Further alternatively, a third group of contact blades Z provided, the contact zones in the longitudinal direction L are provided both to the contact zones of the first contact blades X and to the contact zones Y of the second contact blades.

Claims (16)

1. Contact lamella part (200) for the transmission of an electrical current or signals between a first contact element such as a contact socket and a second contact element which can be coupled therewith, such as a contact pin, with a plurality of contact lamellae (220, 221) extending substantially parallel to one another in a longitudinal direction (L), in each case with a contact zone (230, 231) for establishing electrical contact with the first contact element and/or the second contact element, wherein the contact zone (230) of a first contact lamella (230) is arranged offset in the longitudinal direction (L) in relation to the contact zone (231) of a second contact lamella (231), wherein the contact lamellae (220, 221) each have torsion web (225) which, starting out from a first lamella end, is increasingly tilted out of a lamella plane, at least in the contact zone, wherein the lamella plane is a tangent plane to an untilted surface of the torsion web (225), wherein the torsion web (225) has a first width (B1), at least in the region the contact zone (230, 231), characterised in that the torsion web (225) transitions, in the direction of the other lamella end, into a untilted connecting bar (226) with a second width (B2) which is less than the first width (B1).
2. Contact lamella part according to claim 1, characterised in that the contact lamellae (220, 221) are, at least in the region of their contact zones (230, 231), in each case twisted around their own longitudinal axis (A).
3. Contact lamella part according to claim 1 or 2, characterised in that the first contact lamella (220) is a contact lamella adjacent to the second contact lamella (221).
4. Contact lamella part according to one of the preceding claims, characterised in that the contact zones (230, 231) of adjacent contact lamellae (220, 221) are arranged alternatingly in two contact planes (E1, E2) spaced apart from one another and running perpendicular to the longitudinal direction.
5. Contact lamella part according to one of the preceding claims, characterised in that a first partial quantity of the contact lamellae (230) exhibit a first specified width progression along their longitudinal axis (A) and a second partial quantity of the contact lamellae (231) exhibit a second specified width progression along the longitudinal axis (A) which differs from the first width progression and preferably substantially represents an inversion of the first width progression.
6. Contact lamella part according to claim 5, characterised in that the contact lamellae (220) of the first partial quantity and the contact lamellae (221) of the second partial quantity alternate.
7. Contact lamella part according to one of the preceding claims , characterised in that the torsion webs (225) of at least two adjacent contact lamellae (220, 221), in particular all contact lamellae, are tilted, in relation to their lamella planes, in the same direction around their respective longitudinal axes (A).
8. Contact lamella part according to one of the preceding claims , characterised in that the second width (B2) is less than half as wide as the first width (B1), .
9. Contact lamella part according to claim 8, characterised in that the two connecting bars (226) of two adjacent contact lamellae (220, 221) are arranged offset in relation to one another, and in particular at two opposite lamella ends, in such a way that no sectional plane intersects both connecting bars (226).
10. Contact lamella part according to one of the claims 1 bis 9, characterised in that the torsion web (225) extends with a preferably substantially constant first width (B1) over more than half, in particular over more than 75% of the overall length of the contact lamella.
11. Contact lamella part according to one of the preceding claims, characterised in that the contact zones (230, 231) of the contact lamellae (220, 221) in each case have a first lateral edge (240) for establishing electrical contact with the first contact element under elastic preload and/or a second lateral edge (241) on the opposite side of the longitudinal axis (A) of the respective contact lamella for establishing electrical contact with the second contact element under elastic preload.
12. Contact lamella part according to claim 11, characterised in that a geometrical connecting line between the first lateral edge (240) and the second lateral edge (241) runs substantially perpendicular to the longitudinal direction (L).
13. Contact lamella part according to one of the preceding claims, characterised in that the contact lamellae (220, 221) in each case extend between a first connecting body (250) such as a first support strip or support ring and a second connecting body (251), spaced apart therefrom in the longitudinal direction (L), such as a second support strip or support ring.
14. Contact lamella part according to one of the preceding claims, characterised in that, in order to form a lamellar cage or lamellar cages, the contact lamellae are provided in an arrangement extending, at least in sections, in a peripheral direction (U), in particular in a (partially) annular or annular arrangement.
15. Plug connector (500) with a contact socket (510) for coupling with a contact pin (520) in a plugging direction (S) running parallel to the longitudinal direction (L) of the contact lamellae, wherein a contact lamella part (200) according to one of the preceding claims is held in the contact socket (510).
16. Plug connector according to claim 15, characterised in that the contact zones of the contact lamellae are twisted and/or tilted around the respective lamella axis (A) such that their first lateral edges (240) establish electrical contact with an inner wall of the contact socket (510) surrounding the contact lamella part and their second lateral edges (241) project into an inner volume (550) surrounded by the contact lamella part designed to receive the contact pin (520).

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