EP3465837B1 - Contact element - Google Patents

Description

TECHNICAL AREA

The present invention relates to a contact element for establishing an electrical contact between two contact pieces according to the preamble of claim 1.

STATE OF THE ART

Contact elements, which can also be referred to as contact lamellas, have become known from the prior art. For example, the EP 0 716 474 a contact element which comprises a one-piece contact strip which extends along a longitudinal direction and with which two opposite contact surfaces can be electrically contacted. The length of the contact strip can be easily deformed so that it is easy to install.

Even if the deformation of the contact strip during installation is very advantageous, the contact lamella has according to the EP 0 716 474 some disadvantages.

On the one hand, the scalability with regard to the electrical currents to be transmitted is very limited. Typically, an increase in the current is also accompanied by an increase in the cross section of the contact element. Such a scaling is not easily possible because otherwise advantageous properties are lost. For example, the contact element becomes stiffer when it is enlarged.

On the other hand, the mechanical insertion force can only be influenced slightly if the lamella is used in a socket or plug connection.

In addition, the area of use or the spring deflection area is also limited with regard to the geometric dimensions between the two contact surfaces. US 7 078 614 B1 discloses a contact element according to the preamble of claim 1. Similar contact elements are from EP 1 119 077 A1 , WO 2008/092284 A1 , US 8 821 170 B1 known.

DISCLOSURE OF THE INVENTION

Based on this prior art, the invention is based on an object Specify contact element which overcomes the disadvantages of the prior art. In particular, the contact element should be more easily configurable for different applications.

This object is achieved by a contact element according to claim 1. Accordingly, a contact element for establishing an electrical contact between two contact pieces comprises a carrier strip extending in the longitudinal direction and a plurality of contact parts which are connected to the carrier strip. The contact parts each comprise at least one first contact section for contacting one of the two contact pieces, at least one second contact section for contacting the other of the two contact pieces, and at least one fastening section for fastening the contact part to the carrier tape. The contact parts are connected to the carrier tape at a fastening point via the fastening section. A line extends longitudinally through the carrier tape. The line is preferably a line lying centrally in the carrier tape. The contact parts are positioned relative to the carrier tape in such a way that the contact parts are pivoted or can be pivoted about a pivot line. The pivot line is inclined at an angle of less than 30 °, in particular essentially parallel, to said line.

The angle is therefore in the range from 0 ° to 30 °. A pivot line lying essentially parallel is understood to mean that the pivot line lies exactly parallel or at a small angle of up to 0 ° or up to 5 ° to the line. The pivot lines of the individual contact parts run parallel to one another but not collinear.

As a result of this design, the contact parts spring in essentially parallel to the insertion direction. Said pivot line is preferably orthogonal to the insertion direction.

In other words, the essential orientation of the contact part is preferably transverse to the longitudinal direction. In this way it is achieved during a contact process that the contact part pivots about the pivot line during a contact movement, which in the installed position is oriented at right angles to the plug-in direction.

During a contact process, the orientation of the contact parts transversely to the carrier tape ensures that the contact part pivots about the pivot line during a contact movement, which in the installed position is oriented at right angles to the insertion direction.

By arranging the contact parts so that the type of pivoting described is made possible, the contact parts are pivoted essentially in the plug-in direction during installation, whereby the load on the carrier tape is lower. In addition, the contact element for the plug connection can be dimensioned more easily. In particular, the contact parts can be dimensioned independently and freely from the carrier tape. Particularly preferably, the cross section of the contact parts can be changed very easily.

Depending on the installation position, the carrier tape extends cylindrically around a central axis, the line and the pivot line then likewise extending cylindrically around the central axis. In this context, the expression that the line and the pivot line are parallel is to be understood to the effect that the cylindrical circumferential line and the cylindrical circumferential pivot line lie in parallel planes which are transverse to the central axis. This configuration of the installation position occurs, for example, with a socket and plug connection.

By arranging the contact parts, which are responsible for the actual electrical contact switching, a defined electrical contact can be achieved between the two contact pieces. Furthermore, if the carrier tape is deformed during the contact process, the contact parts which are provided for the electrical contact are not deformed and thereby negatively influenced, but rather the carrier tape is mechanically deformed.

The contact part preferably moves relatively on the contact surface of the corresponding contact piece during the pivoting about the pivot line, the movement running transversely to the pivot line. This is a combined movement of the contact part, which movement is composed of the pivoting movement and the movement on the contact surface.

The second contact section is preferably located in the area of the fastening section. Furthermore, the contact part is formed in the second contact section with a curve, which curve extends around a curve axis that runs parallel to the longitudinal direction. The rounding axis and the pivot line run essentially collinear to one another at least over the width of the contact part.

The second contact section preferably rolls with its rounding on the contact surface and is optionally designed to be displaceable with respect to the contact surface.

The carrier tape preferably has an essentially constant cross section over its length in the longitudinal direction and is essentially rigid as seen in the longitudinal direction. The expression rigid is understood to mean that no means are provided on the carrier tape which would allow a greater change in length with a lower force. However, the carrier tape has elastic properties which allow the contact parts to spring in.

Alternatively, the carrier tape extending in the longitudinal direction is designed such that when a force is applied to the carrier tape, the length of the carrier tape changes in the longitudinal direction.

The carrier tape is preferably formed from a flat tape whose thickness is many times smaller than its width. The cross-section of the flat ribbon is preferably rectangular.

The fastening points are preferably in the edge region of the carrier tape. In other words, the fastening points are on the outer edge of the carrier tape.

However, the carrier tape can also be designed differently. For example, the fastening sections can be designed as fastening tabs protruding from a rectangular band.

In one embodiment, contact parts are arranged on both sides of the carrier tape. In a In another version, contact parts are arranged on one side of the carrier tape.

The contact parts preferably extend from the respective fastening point with which the corresponding contact part is connected to the carrier tape, across the line which extends in the longitudinal direction. This means that the contact parts transverse to the line protrude beyond the line. In this context the line is preferably a center line.

Contact parts are preferably arranged on both sides of the carrier tape, with an intermediate space being present between two contact parts arranged adjacent on the same side, into which a contact part arranged on the other side can protrude.

A second contact part preferably extends into the intermediate space lying between two adjacent first contact parts and a first contact part extends into the intermediate space lying between two adjacent second contact parts.

In other words, the contact parts are arranged crossed to one another.

Preferably, with respect to the line, in particular the center line, contact parts are arranged to the left and right thereof. In this context, the carrier tape can be referred to as a left and a right side, one contact part being connected to the right side and another contact part being connected to the left side. The contact parts are arranged offset from one another as seen along the line, in particular the center line.

The first contact part connected to the right side of the carrier tape is preferably oriented with its first contact section towards the second contact part connected to the left side of the carrier tape and / or the second contact part connected to the left side of the carrier tape with its first contact section oriented towards the first contact part connected to the right side of the carrier tape.

The carrier tape extending in the longitudinal direction preferably comprises a plurality of fastening points which are arranged at a distance from one another in the longitudinal direction, so that, viewed in the longitudinal direction, a plurality of contact parts are arranged. The contact parts are fastened to a fastening point with the fastening section for fastening the contact part.

The contact parts are formed separately from the carrier tape and are firmly connected to the carrier tape via the fastening section. The contact part is preferably connected to the carrier tape via a mechanical connection. The contact part can be connected to the carrier tape in a form-fitting and / or materially and / or force-fittingly. The fastening section of the contact part and the carrier tape or the fastening points of the carrier tape have corresponding elements which enable fastening.

The material of the carrier tape is preferably different from the material of the contact part. The material of the carrier tape preferably has good elastic deformation properties, so that the compression of the contact parts is ensured, and the material of the contact part preferably has good electrical conductivity.

The material of the carrier tape is preferably made of metal, in particular steel, particularly preferably spring steel or stainless spring steel. The material of the contact part is preferably made of copper or alloys thereof. The contact part is preferably provided with a coating which improves the electrical contact. For example with a silver coating.

The carrier tape is preferably produced by a sheet metal strip, which is formed in particular by means of a punching process or laser cutting. The sheet metal strip can also be produced in other ways.

Preferably, the first contact part, viewed from its fastening point, extends in such a way that the first contact section, viewed transversely to the longitudinal direction, extends over a second contact part, in such a way that upon a contact movement from the Side of the second contact part first the first contact part is contacted by the contact piece.

This enables particularly good contacting of the contact parts to be achieved. In addition, the compactness of the contact element can be increased.

Likewise, the second contact parts are preferably arranged, the second contact section of which extends across a first contact part when viewed transversely to the longitudinal direction, in such a way that the contact piece first contacts the second contact element during a contact movement from the side of the first contact element.

Preferably, the carrier tape is bent around a line between the fastening points, in particular curved and / or formed simply bent and / or bent several times, so that the surface of the fastening points, which are arranged on one side of the line, is inclined at an angle to the surface of the fastening points, located on the other side of the line.

In other words: seen in cross section at right angles to the line, the fastening points extend at an angle to a central region of the carrier tape.

Due to the curved design, the carrier tape acts as a spring element in such a way that the respective contact element can be pivoted about its second contact section from an initial position into a contact position.

In other words: The carrier tape preferably has at least one bending line extending parallel to the longitudinal direction, the fastening points running at an angle from the bending line onwards at an angle in relation to a plane which is spanned by the longitudinal direction and a transverse axis lying transversely thereto that the contact parts are inclined at an angle to said contact surfaces of the contact pieces or to said plane.

In one variant, the carrier tape is designed with a curvature. Consequently extends the carrier tape between the fastening points as a curvature from fastening point to fastening point. The carrier tape is preferably curved around the line running in the direction of the longitudinal axis. The radius of the curvature is advantageously chosen to be as large as possible depending on the installation situation.

In another variant, two bending lines are arranged on each side. The two bending lines are spaced apart from one another and are preferably placed symmetrically, that is to say at the same distance, to a line lying centrally between the two fastening points.

The bending lines can be rounded or designed as sharp corners.

Due to the curved or multiple curved design of the web, it can also be said that the carrier tape is V-shaped or U-shaped or trapezoidal or semicircular in cross-section transverse to the longitudinal direction.

The first contact section preferably forms a free end with respect to the carrier tape and stands or projects away from the carrier tape. The first contact section therefore does not rest on the carrier tape at least in the starting position, that is to say in the non-spring-loaded state. In the contact layer, however, the first contact section can come into contact with the carrier tape, depending on the configuration. In the spring-loaded state, that is to say in the contact position, the free end can protrude through a recess in the carrier tape through the carrier tape. The recess is provided by the intermediate area between two webs.

The second contact section is preferably in the area of the fastening section, which fastening section is firmly connected to the fastening point. Alternatively, the fastening section is arranged between the first contact section and the second contact section, with both contact sections projecting away from or standing away from the carrier tape as free ends at least in the non-resilient state.

Preferably, the contact part is formed in the first contact section with a curve, which curve extends around a curve axis that is parallel to the longitudinal direction runs, extends, and / or that the contact part is formed in the second contact section with a curve, which curve extends around a curve axis that runs parallel to the longitudinal direction. The required insertion force can be optimized through the rounding.

The rounding radii can be adapted to the contact situation.

A rounding can be understood to mean a rounding with a constant radius or a non-constant radius or an n-corner or a polygon.

The second contact section of the contact part preferably lies with the carrier tape in such a way that the carrier tape and, if applicable, the rivet in the contact layer do not come into contact with the contact piece. For example, the second contact section can be offset or cranked from the underside of the connecting section, which rests on the carrier tape. The second contact section can therefore be part of an elevation with respect to the fastening section.

Preferably, the cross section of the contact part in the area of the fastening section is larger than the cross section of the contact part in the area of the first contact section. The cross section of the first contact section is therefore tapered with respect to the fastening section. Alternatively or additionally, the cross section of the contact part in the area of the fastening section is larger than the cross section of the contact part in the area of the second contact section. Alternatively, the cross section of the contact part in the area of the fastening section can be essentially the same as the cross section in the area of the second contact section.

The contact part can thus be designed with a tapered section.

In this way, with an optimized use of material, good mounting of the fastening section at the fastening point can be achieved.

The contact part particularly preferably tapers from the fastening section towards the first contact section.

As explained above, the contact part is fastened to the fastening point of the carrier tape via the fastening section. The fastening section can be designed in various ways.

In a first embodiment, the contact part with the fastening section is connected to the fastening point with at least one plastically deformable connection element, in particular a rivet, the at least one connection element being integrally formed on the contact part. The connecting element, in particular the rivet, is therefore an integral part of the contact part.

A plurality of connecting elements or rivets, in particular at least two of them, are preferably arranged.

The connecting elements or rivets extend from an underside of the contact part, which faces the carrier tape, protrude through openings in the fastening point and are plastically deformed on the side of the carrier tape opposite the support of the contact part.

The connecting element or the rivet can also be welded to support the plastic deformation.

The at least one connecting element or the rivet preferably has a circular or an oval or a polygonal or an n-cornered cross section. The at least one connecting element particularly preferably has a cross section which is complementary to an elongated hole. This means that the cross section has essentially the shape of a rectangle, with two opposite side edges being rounded.

In a second and third embodiment, the contact part is connected to the fastening point in the fastening section with at least one rivet. The rivet protrudes through the fastening section and the fastening point of the carrier tape.

For the reception of the rivets in the second and third embodiment, it is advantageous if openings are already made in advance during the manufacture of the contact parts and the carrier tape at the corresponding points, that is to say in the fastening section and in the fastening point. The rivet thus extends through an opening in the fastening point and an opening in the fastening section. The number of openings corresponds to the number of rivets.

According to the second embodiment, the rivet is preferably arranged between the first contact section and the second contact section.

According to the third embodiment, the rivets are preferably made of an electrically conductive material and are connected to the contact part in an electrically conductive manner. The said second contact section of the contact part can further be provided by the rivets.

The rivet of the first embodiment could also be designed in such a way that it provides said second contact section.

In addition, the connection according to the first, second and third embodiment between the rivet and the fastening section and the fastening point could also be supported by a welded connection or by a soldered connection.

According to a fourth embodiment, the contact part with the fastening section for fastening to the fastening point surrounds the fastening point at least partially or completely. The fastening point is thus at least partially surrounded by the fastening section, that is to say that the fastening section extends at least partially around the fastening point.

In this fourth embodiment it is preferred that an outer edge of the fastening point running parallel to the longitudinal direction and surfaces of the fastening point adjoining it are at least partially or completely surrounded by the contact part.

In the present case, the second contact section extends essentially around said edge.

In other words, the contact part is connected to the fastening point via a type of crimp connection. It is a force-fit and / or form-fit connection. The crimp connection can also be reinforced with a soldered or welded connection.

In a fifth variant, the contact part is fastened to the fastening point with at least one clip element.

The clip element is preferably placed in the area of a slot which extends into the second contact section.

The clip element can also have barbs which hook onto the contact part and the fastening point.

In a development of the contact element according to the above description, the ends of the carrier tape are connected to one another, so that a contact element extending around a central axis results, the two ends preferably being connected to one of the said contact parts or the ends being connected to one another with a separate element are. So a ring is created.

Depending on the orientation, the contact parts lie within the carrier tape or outside the carrier tape.

An arrangement of a contact element described above and a first contact piece and a second contact piece is characterized in that the contact element rests with its first contact section on the first contact piece and with the second contact section on the second contact piece.

According to a further development of the arrangement, the first contact piece is a socket part extending around a central axis, and the second contact piece is a socket part extending around the center axis The pin part extending around the central axis, the carrier tape extending around the central axis and wherein the longitudinal direction is transverse to the central axis and extends around it and the pivot line extends around the central axis of the socket part and the pin part, respectively.

The contact parts with the respective first contact sections can preferably be brought into contact with the first contact piece and the contact parts are in contact with the respective second contact sections with the second contact piece, the distance between the opposite second contact pieces being increased during a contact movement.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine schematische Ansicht eines Kontaktelementes und zwei Kontaktstücken vor der Kontaktierung;

Fig. 2

die Ansicht nach Figur 1 bei der Kontaktierung;

Fig. 3

eine schematische Ansicht eines Trägerbandes des Kontaktelementes nach Figuren 1 und 2;

Fig. 4a

eine Frontansicht eines Kontaktteils nach einer ersten Ausführung der vorliegenden Erfindung;

Fig. 4b

eine Ansicht des Kontaktteils nach Fig. 4a von unten;

Fig. 4c

eine Ansicht des Kontaktteils nach Fig. 4a von der Seite;

Fig. 4d

eine Ansicht des Kontaktteils nach Fig. 4a von oben;

Fig. 4e

eine perspektivische Ansicht des Kontaktteils nach Fig. 4a von oben;

Fig. 4f

eine perspektivische Ansicht des Kontaktteils nach Fig. 4a von unten;

Fig. 5a

eine Frontansicht eines Kontaktteils nach einer zweiten Ausführung der vorliegenden Erfindung;

Fig. 5b

eine Ansicht des Kontaktteils nach Fig. 5a von unten;

Fig. 5c

eine Ansicht des Kontaktteils nach Fig. 5a von der Seite;

Fig. 5d

eine Ansicht des Kontaktteils nach Fig. 5a von oben;

Fig. 5e

eine perspektivische Ansicht des Kontaktteils nach Fig. 5a von oben;

Fig. 5f

eine perspektivische Ansicht des Kontaktteils nach Fig. 5a von unten;

Fig. 6a

eine Frontansicht eines Kontaktteils nach einer dritten Ausführung der vorliegenden Erfindung;

Fig. 6b

eine Ansicht des Kontaktteils nach Fig. 6a von unten;

Fig. 6c

eine Ansicht des Kontaktteils nach Fig. 6a von der Seite;

Fig. 6d

eine Ansicht des Kontaktteils nach Fig. 6a von oben;

Fig. 6e

eine perspektivische Ansicht des Kontaktteils nach Fig. 6a von oben;

Fig. 6f

eine perspektivische Ansicht des Kontaktteils nach Fig. 6a von unten;

Fig. 7a

eine Frontansicht eines Kontaktteils nach einer vierten Ausführung der vorliegenden Erfindung;

Fig. 7b

eine Ansicht des Kontaktteils nach Fig. 7a von unten;

Fig. 7c

eine Ansicht des Kontaktteils nach Fig. 7a von der Seite;

Fig. 7d

eine Ansicht des Kontaktteils nach Fig. 7a von oben;

Fig. 7e

eine perspektivische Ansicht des Kontaktteils nach Fig. 7a von oben;

Fig. 7f

eine perspektivische Ansicht des Kontaktteils nach Fig. 7a von unten;

Fig. 8a

eine Frontansicht eines Kontaktteils nach einer fünften Ausführung der vorliegenden Erfindung;

Fig. 8b

eine Ansicht des Kontaktteils nach Fig. 8a von unten;

Fig. 8c

eine Ansicht des Kontaktteils nach Fig. 8a von der Seite;

Fig. 8d

eine Ansicht des Kontaktteils nach Fig. 8a von oben;

Fig. 8e

eine perspektivische Ansicht des Kontaktteils nach Fig. 8a von oben;

Fig. 8f

eine perspektivische Ansicht des Kontaktteils nach Fig. 8a von unten;

Fig. 9a

eine schematische Ansicht eine erfindungsgemässen Kontaktteils zur Anordnung einer umlaufenden Nut in einer Buchse;

Fig. 9b

eine Detailansicht der Figur 9a;

Fig. 9c

eine perspektivische Ansicht der Figur 9a;

Fig. 10a

eine schematische Ansicht eine erfindungsgemässen Kontaktteils zur Anordnung einer umlaufenden Nut in einem Stift;

Fig. 10b

eine Detailansicht der Figur 10a;

Fig. 10c

eine perspektivische Ansicht der Figur 10a.

Preferred embodiments of the invention are described below with reference to the drawings, which are only used for explanation and are not to be interpreted as restrictive. In the drawings show:

Fig. 1

a schematic view of a contact element and two contact pieces before contacting;

Fig. 2

the view Figure 1 when making contact;

Fig. 3

a schematic view of a carrier tape of the contact element according to Figures 1 and 2 ;

Figure 4a

a front view of a contact part according to a first embodiment of the present invention;

Figure 4b

a view of the contact part after Figure 4a from underneath;

Figure 4c

a view of the contact part after Figure 4a of the page;

Figure 4d

a view of the contact part after Figure 4a from above;

Figure 4e

a perspective view of the contact part according to Figure 4a from above;

Fig. 4f

a perspective view of the contact part according to Figure 4a from underneath;

Figure 5a

a front view of a contact part according to a second embodiment of the present invention;

Figure 5b

a view of the contact part after Figure 5a from underneath;

Figure 5c

a view of the contact part after Figure 5a of the page;

Fig. 5d

a view of the contact part after Figure 5a from above;

Figure 5e

a perspective view of the contact part according to Figure 5a from above;

Fig. 5f

a perspective view of the contact part according to Figure 5a from underneath;

Figure 6a

a front view of a contact part according to a third embodiment of the present invention;

Figure 6b

a view of the contact part after Figure 6a from underneath;

Figure 6c

a view of the contact part after Figure 6a of the page;

Fig. 6d

a view of the contact part after Figure 6a from above;

Figure 6e

a perspective view of the contact part according to Figure 6a from above;

Fig. 6f

a perspective view of the contact part according to Figure 6a from underneath;

Figure 7a

a front view of a contact part according to a fourth embodiment of the present invention;

Figure 7b

a view of the contact part after Figure 7a from underneath;

Figure 7c

a view of the contact part after Figure 7a of the page;

Figure 7d

a view of the contact part after Figure 7a from above;

Figure 7e

a perspective view of the contact part according to Figure 7a from above;

Fig. 7f

a perspective view of the contact part according to Figure 7a from underneath;

Figure 8a

a front view of a contact part according to a fifth embodiment of the present invention;

Figure 8b

a view of the contact part after Figure 8a from underneath;

Figure 8c

a view of the contact part after Figure 8a of the page;

Figure 8d

a view of the contact part after Figure 8a from above;

Figure 8e

a perspective view of the contact part according to Figure 8a from above;

Fig. 8f

a perspective view of the contact part according to Figure 8a from underneath;

Figure 9a

a schematic view of a contact part according to the invention for the arrangement of a circumferential groove in a socket;

Figure 9b

a detailed view of the Figure 9a ;

Figure 9c

a perspective view of FIG Figure 9a ;

Figure 10a

a schematic view of a contact part according to the invention for the arrangement of a circumferential groove in a pin;

Figure 10b

a detailed view of the Figure 10a ;

Figure 10c

a perspective view of FIG Figure 10a .

DESCRIPTION OF PREFERRED EMBODIMENTS

In the Figures 1 and 2 a schematic representation of two contact pieces K1, K2 and a contact element 1 is shown. The contact element 1 provides an electrical contact between the first contact piece K1 and the second contact piece K2. For this purpose, the contact element 1 makes contact with the contact surface 18 of the contact piece K1 and the contact surface 19 of the contact piece K2. Due to its resilient properties, which are described in more detail below, the contact element is in the contact layer, as in FIG Figure 2 is shown, always pressed against the two contact surfaces 18, 19 of the contact pieces K1, K2.

When making contact, the first contact piece K1 is shifted relative to the second contact piece K2. The first contact piece K1 then makes contact with the contact surface 18, which is formed here in the front area with a rounding 20, the contact element 1. The first contact piece K1 is then moved further relative to the second contact piece K2 until the contact surface 18 is completely with the contact element 1 is connected. Here, the contact position is then reached, which in the Figure 2 is shown.

The contact element 1 for establishing the electrical contact between the two contact pieces K1, K2 comprises a carrier tape 2 extending in the longitudinal direction L and a plurality of contact parts 5 which are connected to the carrier tape 2. The carrier tape 2 serves to support the contact parts 5 and not to provide an electrical contact, while the contact parts 5 are arranged to provide an electrical contact. The longitudinal direction L runs in the Figures 1 and 2 perpendicular to the drawing sheet surface. The longitudinal direction L can be curved, depending on the installation position of the contact element, or extend along a straight line. For example, when the contact element 1 is installed in a socket / plug combination, the longitudinal direction L is designed to run around a central axis. When contacting two contact pieces K1, K2, which are essentially flat, the longitudinal direction L can extend along a straight line.

In the Figure 3 the carrier tape 2, to which the contact parts 5 are attached, is shown in detail. The carrier tape 2 is designed such that it is deformed in the longitudinal direction L when a force F is applied to the carrier tape 2. The carrier tape 2 is thus designed to be variable in length. Alternatively, the carrier tape can also be rigid in its longitudinal direction. In the alternative, the length of the carrier tape does not change.

The carrier tape 2 is formed here from a flat tape whose thickness is many times smaller than its width.

In the embodiment shown, the carrier tape 2 comprises several fastening points 3. The fastening points 3 are arranged at a distance A from one another, as seen in the longitudinal direction L. In the embodiment shown, two rows of fastening points 3 are arranged. One row comprises first fastening points 3 a, which are arranged one after the other in the longitudinal direction L, and the other row comprises second fastening points 3 b, which are also arranged one after the other in the longitudinal direction L. The two rows thus extend in the longitudinal direction L, the rows being spaced apart from one another in a transverse direction Q which runs transversely to the longitudinal direction. The distance between the fastening points 3 in both rows is identical. The first fastening points 3a are, however, arranged offset in the longitudinal direction L by an offset B to the second fastening points 3b. The offset B can correspond to half the distance A, for example. The fastening points 3 are here in the area of the outer edge 13 of the carrier tape 2. In an alternative, the carrier tape 2 can have a substantially constant cross-section over its length in the longitudinal direction and is substantially rigid when viewed in the longitudinal direction.

In the figures, a symmetrical arrangement of the fastening points 3 with respect to the longitudinal direction L is shown. An asymmetrical arrangement is also conceivable.

A line M, which likewise extends in the longitudinal direction L, lies between the row of first fastening points 3a and the row of second fastening points 3b. The line M can be a center line M. The first fastening points 3a and the second fastening points 3b are with respect to the transverse direction Q with a Transverse distance C at a distance from line M.

The contact parts 5 are fastened to the carrier tape 2 at the fastening points 3.

In the Figures 4a to 4f will be a first run in the Figures 5a to 5f a second version in which Figures 6a to 6f a third version in which Figures 7a to 7f a fourth version, and in the Figures 8a to 8f a fifth embodiment of a contact element 1 according to the invention is shown.

In the following, the individual embodiments will now be explained in more detail, with the same features and then different features being explained in all the embodiments.

In the Figures 4a to 8f it can be clearly seen that the contact parts 5 are firmly connected to the fastening points 3 of the carrier tape 2.

The contact parts 5 according to all embodiments each comprise a first contact section 6 for contacting one of the two contact pieces K1, K2, a second contact section 7 for contacting the other of the two contact pieces K2, K1 and a fastening section 8 for fastening the contact part 5 to a fastening point 3 of the Carrier tape 2.

In all of the embodiments, a first contact part 5a is connected with its fastening section 8 to a first fastening point 3a. A second contact part 5b is connected by its fastening section 8 to a second fastening point 3b. The first contact part 5a which is connected to the first fastening point 3a is oriented with its first contact section 6 towards the second contact part 5b which is connected to the second fastening point 3b. The first contact section 6 therefore projects towards the second contact part 5b. Likewise, the second contact part 5b connected to the second fastening point 3b is oriented with its first contact section 6 towards the first contact part 5a connected to the first fastening point 3a. The contact parts 5a, 5b are arranged in such a way that the respective first Contact sections 6 extend from the fastening point 3a, 3b over the line M, which extends in the longitudinal direction L centrally between the two fastening sections 3a, 3b. This means that the first contact sections 6 of the respective contact parts lie at least partially on the other side with respect to the line M.

The contact parts 5, 5a, 5b are in relation to the carrier tape 3 in such a way that the contact parts 5, 5a, 5b can be pivoted about a pivot line S lying parallel to the line M. This is particularly true in the Figures 4a , 5a , 6a , 7a and 8a well shown. The pivot line S is oriented here at right angles to the surface of the drawing sheet. When contact is made with the first contact piece K1, the contact part 5, as in FIG Figures 1 and 2 illustrated and the pivoting movement according to the arrow S 'pivoted.

In addition to the pivoting movement S ', the contact part 5 can be moved relative to the contact surface 18, 19 of the corresponding contact piece K1, K2 during the pivoting about the pivot line S. The contact part 5 moves with the second contact section 7 relative to the second contact piece K2. This movement runs transversely to the pivot line S and bears the reference symbol V.

In the Figures 4a , 5a , 6a , 7a and 8a It can also be clearly seen that the first contact part 5a, viewed from its fastening point 3a, extends in such a way that the first contact section 6, seen transversely to the longitudinal direction, extends over a second contact part 5b. The supernatant is shown with the arrow D. The first contact part 5a extends over the second contact part 5b in such a way that in the event of a contact movement from the side of the second contact part 5b, the first contact part 5a is first contacted by the corresponding contact piece. With view on Figures 4a , 5a , 6a , 7a and 8a this means that if a contact piece is now pushed towards the contact element 1 in the direction of the arrow P ', the contact piece first comes into contact with the first contact part 5a before the contact piece comes into contact with the second contact part 5b.

The function of the contact element can be optimized by the protrusion. For example, the maximum insertion force can be optimized with regard to the space required.

In other words, the first contact section 6 of the first contact part 5a projects beyond the top side 22 of the second contact part 5b. The second contact part 5b is of course also arranged in the same way. The first contact section 6 of the second contact part 5b is arranged in such a way that it extends over the top side 22 of the first contact part 5a in such a way that when a contact is moved from the side of the first contact part 5a, the second contact part 5b first contacts the contact piece becomes. This movement is in the Figure 4a symbolized by the arrow P.

In the Figures 4a , 5a , 6a , 7a and 8a it is also shown that the webs 4 are formed simply bent or bent several times about a line M lying between the fastening points 3a, 3b, so that the surface 24 of the fastening points 3a, which are arranged on one side of the line M, is inclined at an angle to the surface 24 of the fastening points 3b, which are arranged on the other side of the line M, lie. The bending point in each case bears the reference symbol 23 and the angle between the first fastening points 3a and the second fastening points 3b is indicated by β.

In the Figures 4b , 5b , 6b , 7b and 8b it is also shown that in each case a second contact part 5b extends into the intermediate space Z1, Z2 lying between two adjacent first contact parts 5a. A first contact part 5a extends between two adjacently arranged second contact parts 5b into the space Z2. So an interlaced structure is created.

In all embodiments according to Figures 4a to 8f the first contact section 6 of the contact part 5, 5a, 5b forms a free end 9 which protrudes from the carrier tape 2. The free end 9 does not therefore lie against the carrier tape 2, but extends away from the fastening section 8 from the carrier tape 2.

In the compressed state, the free end 9 can protrude through a recess 35 in the carrier tape 2 through the carrier tape 2. The recess 35 is preferably provided by the intermediate area between two webs 4.

The fastening section 8 lies flat on the carrier tape 2.

The second contact section 7 is also a free end, depending on the type of fastening of the contact part 5, 5a, 5b, or it rests on the underside 25 of the carrier tape 2. This is explained further below in connection with the fastening of the contact parts 5, 5a, 5b.

In the embodiment according to Figures 4a to 4f the second contact section 7 of the contact part 5, 5a, 5b is arranged in relation to the carrier tape 2 in such a way that the carrier tape 2 does not come into contact with the contact piece K2 in the contact position. The second contact section 7 is designed as a type of elevation 29 and is spaced apart from the underside of the carrier tape 2.

In all embodiments according to Figures 4a to 8f the contact part 5 is formed in the first contact section 6 with a rounding 11. The rounding 11 relates in particular to the upper side 22 of the contact part in the first contact section 6, since the contact is also made on the respective contact surface K1, K2 via the upper side 22. Depending on the design, the underside 26 of the contact part 5, 5a, 5b can also be rounded. The rounding 11 extends with a constant or changing rounding radius around a rounding axis R11. The rounding axis R11 preferably extends parallel to the longitudinal direction L.

In the embodiments of Figures 4a-4f , 5a-5f , 7a-7f as 8a-8f the second contact section 7 of the contact part 5, 5a, 5b is also formed with a rounded portion 12. The rounding 12 extends with a constant or changing rounding radius around a rounding axis R12. The rounding axis R12 extends preferably parallel to the longitudinal direction L.

In the third embodiment after the Figures 6a-6f If the second contact section 7 is not provided directly by the contact part 5, 5a, 5b, but by a rivet 14, which is then explained further below. The surface of the rivet 14 is formed with the rounding 12.

In the embodiments of Figures 4a to 8f the second contact section 7 lies in the area of the fastening section 8. That is, the second contact section 7 and the fastening section 8 are spatially close. The contact part 5, 5a, 5b is formed in the second contact section 7 with a rounding 12, which rounding 12 extends around a rounding axis R12 which runs parallel to the longitudinal direction L, the rounding axis R12 and the pivot line S running essentially collinear to one another.

In the embodiments of Figures 7a and 8a the second contact section 7 surrounds the carrier tape in the area of its outer edge 13.

In all embodiments, the radius of curvature R11 of the curvature 11 of the first contact section 6 can be different from the radius of curvature R12 of the curvature 12 of the second contact section 7. The rounding radii R11, R12 can also be the same.

In all embodiments, the cross section of the contact part 5, 5a, 5b in the area of the fastening section 8 is larger than in the area of the first contact section 6. The first contact section 6 is therefore tapered towards the fastening section 8. The change in cross section can have various geometries.

In the embodiments of Figures 4a-4f and 8a-8f, the cross section of the contact part 5, 5a, 5b, seen in the area of the fastening section 8, is larger than the cross section of the contact part 5, 5a, 5b in the area of the second contact section 7. The change in cross-section can have different geometries. The degree of tapering in the second contact section 7 is, however, preferably smaller than in the first contact section 6.

In the embodiments of Figures 5a-5f , 6a-6f as 7a-7f the cross section of the contact part 5, 5a, 5b in the area of the fastening section 8 is essentially the same as the cross section in the area of the second contact section 7.

In the first embodiment according to the Figures 4a to 4f is the contact part 5, 5a, 5b with at least one rivet 15 with the carrier tape 2 in connection. At least one rivet 15 is integrally formed on the contact part 5, 5a, 5b. The contact part 3 and the rivet 15 thus form a one-piece structure. The rivet 15 is then plastically deformed in the area of the underside 25 of the carrier tape so that a rivet head 27 is formed with which the carrier tape 2 is clamped to the contact part 5, 5a, 5b. The rivet 15 protrudes through a rivet opening 33 through the carrier tape 2. The rivets 15 and the rivet opening 33 have essentially the same cross section and are oval here.

In the embodiment shown according to the Figures 4a to 4f four rivets 15 are arranged per contact part 5, 5a, 5b. The number of rivets 15 in other variants of the first embodiment can also be greater or less than four.

The rivets 15 according to the first embodiment are preferably produced by an embossing process, with an embossing tool plastically deforming the fastening section from the upper side 22 and thus pressing out the rivets on the lower side 26 of the contact element.

The fastening points 3 have openings for receiving the rivets 15. The number of openings and their position is adapted to the number and position of the rivets 15. The openings in the carrier tape are produced, for example, by a punching process.

In the first embodiment, the second contact section 7 has an optional indentation 28, which extends centrally through the second contact section 7 and, viewed transversely to the longitudinal direction L, into the second contact section 7. With the indentation 28, a defined division of the contact surfaces can be achieved, whereby the contact resistance can be more precisely defined.

In the area of the outer edge 13 of the fastening point 3, the contact part 5 also has an elevation 29. The elevation 29 is then followed by the second contact section 7. Due to the elevation 29, the fastening section 8 is offset to the rear from the contact section 7, so that the fastening point 3 and the rivet head 27 are also offset from the contact section 7 in such a way that they do not negatively affect the contact process influence.

In the second embodiment according to the Figures 5a to 5f the contact part 5, 5a, 5b is connected to the carrier tape 2 with at least one rivet 14.

The rivet 14 in this embodiment is formed separately from the contact part 5, 5a, 5b. The rivet 14 is passed through an opening in the second contact section 7 and through an opening in the fastening point 3. The contact part 5, 5a, 5b is clamped to the fastening point 3 with the rivet 14.

In the embodiment shown, only one rivet 14 is shown. The arrangement of several rivets 14, such as in FIG Figure 4 shown would also be conceivable.

In the second embodiment, the second contact section 7 adjoins the fastening section 8 opposite the first contact section 6. The second contact section 7 is designed to be bent by the fastening section 8 via a kink 30 and runs at an angle to the fastening section.

In this embodiment, the first contact section 6 is designed as a rounded tip with the rounding described above, the tip tapering towards the free end 9.

The fastening with the at least one rivet 14 could be supported in addition to the mechanical fastening with a welded or soldered connection. The rivet 14 could therefore be welded.

In the third embodiment after the Figures 6a to 6f the contact part 5, 5a, 5b is connected to the carrier tape 2 with at least one rivet 14.

The rivet 14 in this embodiment is formed separately from the contact part 5, 5a, 5b. The rivet 14 is passed through an opening in the second contact section 7 and through an opening in the fastening point 3. The contact part 5, 5a, 5b is clamped to the fastening point 3 with the rivet 14.

In the embodiment shown, only one rivet 14 is shown. The arrangement of several rivets 14, such as in FIG Figure 4 shown would also be conceivable.

According to the third embodiment, the rivet 14 is made of an electrically conductive material and the rivet head 27 on the underside 26 of the carrier tape 2 provides the second contact section. The rivet 14 is in electrical contact with the contact part 5, 5a, 5b.

In the embodiment shown, the rivet head 27 protrudes over the outer edge 13 of the fastening point 3, so that good contacting of the contact surface of the second contact piece is achieved.

The rivet head 27 has the rounding 12 described above.

In a further embodiment, which essentially corresponds to the combination of the first and third embodiment, the rivet is integrally formed on the contact part as in the first embodiment and the rivet head is then reshaped according to the third embodiment, so that the rivet head provides said second contact section can. This further embodiment is not shown in the figures.

In this embodiment, the first contact section 6 is designed as a rounded tip with the rounding described above, the tip tapering towards the free end 9.

The fastening with the at least one rivet 14 could be supported in addition to the mechanical fastening with a welded or soldered connection. The rivet 14 could therefore be welded or soldered.

In the fourth embodiment after the Figures 7a to 7f the fastening section 8 surrounds the fastening point 3 at least partially. In the embodiment shown, the fastening section 8 surrounds the fastening point on its top side as well as on its underside and the outer edge 13. During the assembly of the contact part 3, the fastening section 8 is plastically deformed and thereby becomes Clamped fastening point. The mechanical clamping can be supported by an additional soldered or welded connection.

The fastening section preferably surrounds the upper side or the lower side of the fastening point essentially completely. It would also be conceivable that the fastening section only partially surrounds the top and / or the bottom.

The clamping can also be referred to as crimping or crimp connection. In the figures, the crimp bears the reference number 31.

The part of the fastening section 8 which extends around the outer edge 13 serves at the same time as a second contact section 7 and is correspondingly formed with a rounding 12 on its outside.

In the fifth embodiment according to the Figures 8a to 8f the contact part 5, 5a, 5b is fastened to the fastening point 3 with a clip element 16. In the embodiment shown, the clip element 16 is molded onto the fastening point 3 and extends from the outer edge 13 of the fastening point 3 transversely to the longitudinal direction L away. The clip element 16 is reshaped and extends onto the upper side 22 of the contact part 5, 5a, 5b in the area of the fastening section 8 and thus clamps the contact part 5, 5a, 5b to the fastening point 3.

Alternatively, the clip element 16 can also be an element formed separately from the contact part or from the fastening point 3.

The clip element 16 preferably extends through a slot 17 which extends into the second contact section 7. This ensures that the clip element does not adversely affect the contact between the second contact section 7 and the second contact piece K2. In other words, the contact section 7 extends away from the fastening section 8 as two free ends.

The mechanical clamping by the clip element 16 can be supported by an additional soldered or welded connection.

In the Figures 9a to 9d a first installation situation of a contact element 1 is shown in a schematic view. The contact element 1 can be designed in the sense of the present invention, in particular in accordance with the preceding embodiments.

The longitudinal direction of the carrier tape 2 or the line M extend here around a central axis X. In the Figures 9a to 9d essentially shows the installation situation in a socket, the second contact sections 7 then lying in a groove in a socket.

In particular from the Figure 9c it can be clearly seen that the orientation of the contact parts 5 is in the direction of the central axis X, that is, transversely to the longitudinal direction of the carrier tape.

In the Figures 10a to 10d a second installation situation of a contact element 1 is shown in a schematic view. The contact element 1 can be designed in the sense of the present invention, in particular in accordance with the preceding embodiments.

The longitudinal direction of the carrier tape 2 or the line M extend here around a central axis X. In the Figures 10a to 10d essentially shows the installation situation on the outside of a plug, the second contact section 7 then lying in a groove on the outside of the plug.

In particular from the Figure 10c it can be clearly seen that the orientation of the contact parts 5 is in the direction of the central axis X, that is, transversely to the longitudinal direction of the carrier tape.

With both configurations according to the Figures 9a to 9c and 10a to 10c the ends 34 of the carrier tape 2 are connected to one another so that a contact element extending around a central axis X results, the two ends 34 preferably being connected to one of said contact parts 5, 5a, 5b. REFERENCE LIST 1 Contact element 29 Elevation 2 Carrier tape 30th Kink 3, 3a, 3b Attachment points 31 Crimping 4th web 5, 5a, 5b Contact part 33 Rivet opening 6 first contact section 34 end up 7th second contact section 35 Recess 8th Fastening section A. distance 9 free end B. Offset 10 free end C. Transverse distance 11 Rounding D. Got over 12 Rounding L. Longitudinal direction 13 outer edge Q Transverse axis 14th Rivet M. line 15th molded rivets P, P ' arrow 16 Clip element S. Swivel line 17th slot S ' Swivel movement 18th Contact area V Move 19th Contact area X Central axis 20th Rounding of the contact surface 18 Z1 Space Z2 Space 21st inner edge F. force 22nd Top E. level 23 Bending point R11 Rounding axis 24 surface R12 Rounding axis 25th bottom K1 Contact piece 26th bottom K2 Contact piece 27 Rivet head 28 indentation

Claims (19)

1. A contact element (1) for establishing electrical contact between two contact pieces
   (K1, K2), comprising
   a carrier strip (2) which extends in a longitudinal direction (L),
   and
   a plurality of contact parts (5, 5a, 5b) each having at least one first contact section (6) for making contact with one of the two contact pieces (K1, K2), at least one second contact section (7) for making contact with the other of the two contact pieces (K2, K1), and also having at least one fastening section (8) for fastening the contact part (5, 5a, 5b) to the carrier strip (2) at a fastening point (3), characterized in that a line (M), in particular a center line, extends through the carrier strip in the longitudinal direction, wherein the contact parts (5, 5a, 5b) are situated in relation to the carrier strip (3) in such a way that the contact parts (5, 5a, 5b) can be pivoted about a pivot line (S), which pivot line (S) is situated in a manner inclined at an angle of less than 30°, in particular substantially parallel, in relation to said line (M).
2. The contact element (1) as claimed in one of the preceding claims, characterized in that the contact part (5) can be moved relative to the contact face (18, 19) of the corresponding contact piece (K1, K2) during the pivoting about the pivot line (S), wherein the movement runs transverse to the pivot line (S).
3. The contact element (1) as claimed in either of the preceding claims, characterized in that the second contact section (7) is situated in the region of the fastening section (8), and in that the contact part (5, 5a, 5b) is formed with a rounded portion (12) in the second contact section (7), which rounded portion (12) extends around a rounded portion axis (R12) which runs parallel in relation to the longitudinal direction (L), wherein the rounded portion axis (R12) and the pivot line (S) run in a substantially collinear manner in relation to one another.
4. The contact element (1) as claimed in one of the preceding claims, characterized in that the carrier strip has a substantially constant cross section over its length in the longitudinal direction and is substantially rigid as seen in the longitudinal direction.
5. The contact element (1) as claimed in one of the preceding claims, characterized in that the carrier strip is designed in such a way that, when a force (F) is applied to the carrier strip (2), the length of the carrier strip (2) changes in the longitudinal direction (L).
6. The contact element (1) as claimed in one of the preceding claims, characterized in that contact parts (5, 5a, 5b) are arranged on both sides or on one side of the carrier strip (2).
7. The contact element (1) as claimed in one of the preceding claims, characterized in that the contact parts (5, 5a, 5b) extends away from the respective fastening point (3), by way of which the corresponding contact part (5, 5a, 5b) is connected to the carrier strip (2), over the line (M) which extends in the longitudinal direction (L).
8. The contact element (1) as claimed in one of the preceding claims, characterized in that
   contact parts (5, 5a, 5b) are arranged on either side of the carrier strip (2), wherein there is an intermediate space between two contact parts (5, 5a, 5b) which are arranged in an adjacent manner on the same side, it being possible for a contact part (5, 5a, 5b) which is arranged on the other side to protrude into said intermediate space,
   such that a second contact part (5, 5b) extends into the intermediate space (Z1) which is situated between two adjacent first contact parts (5, 5a), and such that a first contact part (5, 5a) extends into the intermediate space (Z2) which is situated between two adjacent second contact parts (5, 5b).
9. The contact element (1) as claimed in one of the preceding claims, characterized in that the first contact part (5, 5a), as seen from its fastening point (3), extends in such a way that the first contact section (6), as seen transverse in relation to the longitudinal direction (L), extends beyond a second contact part (5, 5b) in such a way that, in the event of a contact movement on the part of the second contact part (5, 5b), contact is initially made with the first contact part (5, 5a) by the contact piece.
10. The contact element (1) as claimed in one of the preceding claims, characterized
    in that the carrier strip (2) is designed in a manner bent about a line which is situated between the fastening points (3), in particular bent in a curved manner or bent once or bent several times, so that the surface of the fastening points (3) which are arranged on one side of the line (M) is situated in a manner inclined at an angle in relation to the surface of the fastening points (3) which are arranged on the other side of the line (M).
11. The contact element (1) as claimed in one of the preceding claims, characterized in that the first contact section (6) forms a free end (9) with respect to the carrier strip (2) and protrudes away or projects away from the carrier strip (2) at least in the non-deflected state, and in that the free end (9) protrudes through the carrier strip (2) through a recess (35) in the carrier strip (2) in the contact position.
12. The contact element (1) as claimed in one of the preceding claims, characterized in that the contact part (5, 5a, 5b) is designed with a rounded portion (11) in the first contact section (6), which rounded portion (11) extends around a rounded portion axis (R11) which runs parallel in relation to the longitudinal direction (L).
13. The contact element (1) as claimed in one of the preceding claims, characterized
    in that the cross section of the contact part (5, 5a, 5b) in the region of the fastening section (8) is greater than the cross section of the contact part (5, 5a, 5b) in the region of the first contact section (6).
14. The contact element (1) as claimed in one of the preceding claims, characterized in that the cross section of the contact part (5, 5a, 5b) in the region of the fastening section (8) is greater than the cross section of the contact part (5, 5a, 5b) in the region of the second contact section (7), or in that, as seen in the longitudinal direction (L), the cross section of the contact part (5, 5a, 5b) in the region of the fastening section (8) is substantially equal to the cross section in the region of the second contact section (7).
15. The contact element (1) as claimed in one of the preceding claims, characterized
    in that the second contact section (7) of the contact part (5, 5a, 5b) is situated in relation to the carrier strip (2) in such a way that the carrier strip (2) is not connected to the contact piece (K2) in the contact position.
16. The contact element (1) as claimed in one of claims 1 to 15, characterized in that the contact part (3) is connected to the fastening point (3) by means of the fastening section (8) by way of at least one plastically deformable connecting element, in particular a rivet (15), wherein the connecting element (15) is formed in one piece with the contact part (3).
17. The contact element (1) as claimed in one of the preceding claims, characterized in that the ends of the carrier strip (2) are connected to one another, so that a contact element which extends around a center axis (X) results, wherein the two ends are preferably connected to one of said contact parts (5, 5a, 5b), or wherein the ends are connected to one another by way of a separate element.
18. An arrangement of a contact element (1) as claimed in one of the preceding claims and also a first contact piece and a second contact piece, wherein the contact element bears, by way of its first contact section, against the first contact piece and, by way of the second contact section, against the second contact piece.
19. The arrangement as claimed in claim 18, characterized in that the first contact piece is a socket part which extends around a center axis and the second contact piece is a pin part which extends around the center axis, wherein the carrier strip extends around the center axis, wherein the longitudinal direction (L) is situated transverse in relation to the center axis and extends around said center axis, and wherein the pivot line (S) extends around the center axis of the socket part or the pin part, respectively.

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