EP1705752B1 - Electrical connector socket - Google Patents

Description

The invention relates to an electrical connector socket which is designed as a radial contact socket and has a plurality of longitudinal contact elements for contacting a plug and a sleeve surrounding the longitudinal contact elements. Furthermore, the invention relates to a method for producing an electrical connector socket with a plurality of longitudinal contact elements for contacting a plug and with a sleeve surrounding the longitudinal contact elements.

The publication US 2002/0187686 A1 shows a bushing with a T-shaped connection and the production of a Lammellenkontaktes consisting of a Lämmellenkäfig and a rolled contact holder, which are twisted in a complex manner and with the aid of various tools in an "hourglass shape".

The U.S. Patent 4,657,335 describes a bush which is formed by a relative rotational movement of the ends of a lamellar cage in a sleeve. To determine the lamellar cage in the sleeve rings are slipped over at the respective ends of the sleeve.

US2004 / 003498 A1 shows a method according to the preamble of claim 10.

EP-A-1473803 shows an electrical connector socket according to the preamble of claim 1.

The object of the present invention is to produce such a connector socket simpler and therefore less expensive, while at the same time contact resistances between different components should be avoided as much as possible.

The basic idea of the present invention is to form the longitudinal contact elements and the sleeve in one piece or in one piece. The object is also achieved by a method according to the invention for producing an electrical connector socket with a plurality of longitudinal contact elements for contacting a plug and with a sleeve surrounding the longitudinal contact elements for contacting a plug-side wiring harness of a one-piece conductive workpiece, in particular a sheet metal.

• Ausstanzen einer Grundform und Ausstanzen der Längskontaktelemente, die sich über einen ersten Teilbereich der Grundform erstrecken,
• Falten der Grundform am Übergang des ersten Teilbereichs in einen zweiten Teilbereich,
• Aufrollen der gefalteten Grundform in eine im wesentlichen zylinderförmige Buchse, wobei der erste Teilbereich mit den Längskontaktelementen eine Innenseite der Buchse und der zweite Teilbereich eine Hülse der Buchse bildet,
• Herstellung einer ersten kraftschlüssigen Verbindung entweder an der Kontaktnaht des ersten Teilbereichs der aufgerollten Grundform oder an der Kontaktnaht des zweiten Teilbereichs der aufgerollten Grundform,
• Verschiebung des ersten Teilbereichs relativ zu dem zweiten Teilbereich in Rotationsrichtung,
• Herstellung einer zweiten kraftschlüssigen Verbindung an der noch offenen Kontaktnaht entweder des zweiten Teilbereichs oder des ersten Teilbereichs.

The electrical connector socket according to the invention is produced in particular by the following method steps:

• Punching out a basic shape and punching out the longitudinal contact elements, which extend over a first subregion of the basic shape,
• Folding the basic shape at the transition of the first partial area into a second partial area,
• Rolling up the folded basic shape into a substantially cylindrical bush, wherein the first portion with the longitudinal contact elements forms an inner side of the bush and the second portion forms a sleeve of the bush,
• Producing a first frictional connection either at the contact seam of the first portion of the rolled-up basic shape or at the contact seam of the second portion of the rolled-up basic shape,
• Displacement of the first partial area relative to the second partial area in the direction of rotation,
• Producing a second non-positive connection to the still open contact seam of either the second portion or the first portion.

The displacement of the first partial region relative to the second partial region in the direction of rotation can also take place prior to the production of a first frictional connection either at the contact seam of the first partial region of the rolled-up basic shape or at the contact seam of the second partial region of the rolled-up basic shape. The displacement can be effected by gripping arms or spreading means, which are in frictional engagement with the first and / or second portion and are rotated in opposite directions.

By the one-piece concept of the present invention separation points and resulting contact resistance at contact points are largely avoided. Together with the longitudinal contact elements, which ensure a high current flow with minimal voltage drop, connector sockets according to the invention have a higher current carrying capacity with a minimal increase in temperature.

Furthermore, a maximum contact surface with the right plug and a longer life by a lower contact pressure and consequently less wear is possible. Also, a variety of mating cycles surprisingly leads to a lower Wear in comparison to conventional solutions, which by an embodiment of the invention in which the socket has a plurality of longitudinal contact elements twisted in hyperbolic shape.

The reliability in vibration and shocks is also increased by the bush according to the invention, which is particularly in the automotive sector due to strong vibrations and other environmental influences advantage. Particularly cost can be provided as a stamped bending construction a corresponding socket.

If the longitudinal contact elements are formed by punching out intermediate spaces, this results in a particularly stable positive engagement between the longitudinal contact elements.

In a further advantageous embodiment of the invention, it is provided that the longitudinal contact elements extend substantially parallel to one another over the entire length of the bushing and are provided at each end of the longitudinal contact elements orthogonally extending webs integral with the longitudinal contact elements and connecting the longitudinal contact elements.

In a further embodiment of the invention, it is provided that, in one piece with the sleeve and the longitudinal contact elements, a line set connection is provided for contacting the line set.

This cable harness connection can also have a crimp geometry and, in addition, by means of a material reinforcement in the area of the cable harness connection, a particular stability of the Ensure connector socket. For this purpose, a step material for realizing the different material thicknesses can be provided.

As an alternative to the crimping geometry can also be provided in the connector socket according to the invention that the wiring harness connection consists of several pins / extensions for fixing the socket on a circuit board. The pins are pushed through the board and soldered to the back of the board.

The method step of shifting the first subregion relative to the second subregion in the direction of rotation can also be effected by fixing the pins applied to the first or second subarea in the component to be contacted by still allowing the respective other subarea to be displaced and subsequently to the component to be contacted is determined. This is conceivable, for example, in the manner of a bayonet closure. In this way, a mounting of the socket in the pick-and-place method is possible.

Fig. 1:

eine perspektivische Ansicht der erfindungsgemäßen Steckverbinderbuchse;

Fig. 2:

eine perspektivische Teilansicht der Unterseite der erfindungsgemäßen Steckverbinderbuchse mit Pins zum Einlöten in eine Platine;

Fig. 3:

eine Ansicht der Steckverbinderbuchse nach dem Verfahrensschritt des Ausstanzens;

Fig. 4:

eine Seitenansicht der erfindungsgemäßen Steckverbinderbuchse beim Verfahrensschritt des Faltens;

Fig. 5a bis 5c:

verschiedene Ansichten der erfindungsgemäßen Steckverbinderbuchse beim Verfahrensschritt des Aufrollens.

Further embodiments of the invention will become apparent from the claims and the figures and the associated description of the figures, wherein the figures of the drawings represent the following:

Fig. 1:

a perspective view of the connector socket according to the invention;

Fig. 2:

a partial perspective view of the underside of the connector socket according to the invention with pins for soldering into a circuit board;

3:

a view of the connector socket after the process step of punching;

4:

a side view of the connector socket according to the invention in the process step of folding;

5a to 5c:

different views of the connector socket according to the invention in the process step of reeling.

The function and structure of the electrical connector socket 1 according to the invention Fig. 1 is through the in Fig. 3, 4 and 5 most clearly understood.

An in Fig. 3 basic form 1 shown, from which the electrical connector socket 1 is formed, has substantially two subregions, namely a first portion from which the longitudinal contact elements 10 with gaps 11 and webs 12 and a second portion, from which the sleeve 20 is formed. The longitudinal contact elements 10 are uniformly and parallel distributed over the rectangular, first portion and are formed during punching of the basic shape by punching the gaps 11. This also creates the webs 12, which are connected to the longitudinal contact element ends 10e of the longitudinal contact elements 10 and formed integrally therewith. The metal from which the basic shape is punched can consist of a step material, whereby different Material thicknesses can be provided in the different sections.

In a second step, in Fig. 4 is shown, the basic shape 1 is folded in the transition region between the first and second portion until the first and second portions are in surface contact at contact surfaces 10k, 20k of the longitudinal contact elements 10 and the sleeve 20.

In a next step, the folded basic shape in the orthogonal direction to the longitudinal extension of the longitudinal contact elements 10 in the by an arrow in Fig. 5a rolled illustrated direction, wherein the longitudinal contact elements 10 form the inner surface 10i of the connector socket 1 and an outer surface 20a of the sleeve 20, the outer surface of the connector socket 1 represents.

The connector socket 1 is rolled up until lateral end faces 10s1, 10s2 of the first portion and lateral end faces 20s1, 20s2 of the second portion 20 meet at a contact seam.

Following this, either the end face 20s1 with the end face 20s2 or the end face 10s2 with the end face 10s2 is fixed. The fixation is effected by a frictional connection, for example welding, caulking or any other known to the expert substance - and / or positive connection (see Fig. 5b ).

Following this, the longitudinal contact elements are rotated relatively rotationally against each other. However, the side remains with the fold 15th fixed and only the opposite side can be twisted. This creates a hyperbolic shape of the longitudinal contact elements which form a contact region, as is known to the person skilled in the art.

After twisting to a certain angle, the two still open end faces 10s1 and 10s2 or 20s1 and 20s2 are positively connected at the contact seam. The relative rotational rotation can in particular at an angle of 45 ° (see Fig. 5c ) be advantageous.

In this way, the in Fig. 1 shown inventive electrical connector socket 1 formed, in which a correspondingly shaped connector (not shown) can be inserted. The contacting of the electrical line to be connected or the electrical line set can be done in various ways. In Fig. 5a For example, a crimping area is shown, which is integrally formed or integrally formed on the first portion of the basic shape and is already punched out during punching. As a result, a further contact resistance is avoided.

Alternatively, the crimping area can also be formed on the second partial area. In Fig. 2 a further embodiment is shown as an alternative to the crimp area, here legs or pins 31 are provided which can be plugged into a circuit board in corresponding through holes and soldered on the back. A positive insertion in board holes is executable depending on the application and covered by the invention with.

LIST OF REFERENCE NUMBERS

1

elektrische Steckverbinderbuchse

10

Längskontaktelemente

10e

Längskontaktelementende 10s1 10s2 Stirnflächen 20s1 20s2 10k Kontaktflächen

20k 10i Innenfläche (des ersten Teilbereichs) 11 Zwischenräume 12 Stege 15 Falz (zwischen erstem und zweiten Teilbereich) 20 Hülse 20a Außenfläche (des zweiten Teilbereichs) 30 Leitungssatzanschluss 31 Pin

1

electrical connector socket

10

Longitudinal contact elements

10e

Longitudinal contact element end 10s1 10s2 End faces 20s1 20s2 10k contact surfaces

20k 10i inner surface (of the first portion) 11 spaces 12 webs 15 fold (between the first and second portion) 20 sleeve 20a outer surface (of the second portion) 30 wiring harness connector 31 pin

Claims (10)

1. Electrical connector socket (1) for connection to a cable assembly, which is configured in particular as a radial-contact socket with the following features:

   - Several longitudinal contact elements (10) for contacting a plug,

   - A sleeve (20) that encompasses the longitudinal contact elements (10),

   - A cable assembly connection (30) is attached to the sleeve (20),

   characterized in that
   the longitudinal contact elements (10) and the sleeve (20) are designed integrally with a fold (15) that extends over the entire width of the sleeve (20).
2. Electrical connector socket (1) according to claim 1, wherein the socket (1) has several longitudinal contact elements (10) that are twisted in hyperbolic shape.
3. Electrical connector socket (1) according to claim 1 or 2, wherein the longitudinal contact elements (10) and the sleeve (20) are provided as a stamped, flexible design.
4. Electrical connector socket (1) according to one of the preceding claims, wherein the longitudinal contact elements (10) are formed by punching out intermediate spaces (11).
5. Electrical connector socket (1) according to one of the preceding claims, wherein the longitudinal contact elements (10) extend parallel to one another essentially over the entire length of the socket (1), and arms (12) that run orthogonally at each end (10e) of the longitudinal contact elements (10) and that are integral with the longitudinal contact elements (10) are provided that connect the longitudinal contact elements (10).
6. Electrical connector socket (1) according to one of the preceding claims, wherein a cable assembly connection (30) is provided integrally with the sleeve (20) and the longitudinal contact elements (10) for contacting the cable assembly.
7. Electrical connector socket (1) according to claim 6, wherein the cable assembly connection (30) has a crimp geometry.
8. Electrical connector socket (1) according to claim 6 or 7, wherein the cable assembly connection (30) has material reinforcement.
9. Electrical connector socket (1) according to claim 6, wherein the cable assembly connection (30) consists of several pins (30p) for securing the socket (1) to a board.
10. Method for the production of an electrical connector socket with several longitudinal contact elements for contacting a plug and with a sleeve that consists of an integral conductive workpiece that encompasses the longitudinal contact elements, in particular a sheet with the following process steps:

    - Punching out a basic shape and punching out the longitudinal contact elements that extend over a first partial area of the basic shape, and right after that,

    - Folding the basic shape at the transition of the first partial area into a second partial area,

    - Rolling up the folded basic shape into an essentially cylindrical socket, whereby the first partial area with the longitudinal contact elements forms an inner surface of the socket and the second partial area forms a sleeve of the socket, characterized by a fold that extends over the entire width of the sleeve and by the following additional process steps:

    - Production of a first frictional connection either to the contact seam of the first partial area of the rolled-up basic shape or to the contact seam of the second partial area of the rolled-up basic shape,

    - Shift of the first partial area relative to the second partial area in rotational direction,

    - Production of a second frictional connection to the still open contact seam either of the second partial area or the first partial area.

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