DE102008058203A1 - Socket for printed circuit board, has contact elements that are arranged at lower ring region for mechanical and electrical connection with printed circuit board, where window is provided in lower ring region - Google Patents

Abstract

The socket has an upper ring region (15) and a lower ring region (16) that are arranged within a region of an upper end and a lower end of a case. The case has bars (14) that extend between the upper and lower ring regions and connected with the ring regions. The bars are arranged inwardly bulged for forming contact regions. Slots (13) are formed between the bars, where the slots are closed on both sides. Contact elements (6) are arranged at the lower ring region for mechanical and electrical connection with a printed circuit board. A window (17) is provided in the lower ring region.

Description

The The invention relates to a socket for connection to printed circuit boards is determined and in which a pin can be adjusted. With printed circuit boards there is a need to use the ones used there Supply components with electricity. There are high current contacts for this purpose or similar devices to which cables are connected can be. Usually the cables screwed it. But there is also the need for such Feeder detachable, for example through plug connections.

There is already known an electrical connector socket ( DE 10 2005 013 989 ), which is made of a sheet metal blank. The one part of the sheet metal blank contains slots, the other is without openings. The two parts are folded over and their edges joined together. Then, a rotation takes place in such a way that the longitudinal slots run obliquely. Subsequently, a frictional connection between the longitudinal slots having inner sleeve and the slots having no outer sleeve. Both on the outer sleeve and on the slots having inner sleeve contact elements can be arranged for pressing in a circuit board. Due to the frictional connection between inner sleeve and outer sleeve, the force can be made to press in from the axial end side of the socket.

Also known is a contact socket for a pin ( DE 10 2005 063 286 ), in which the inner sleeve has such contact pins. The rectilinear slots, which are open towards the free end of the socket, extend over about half the length and have a small width compared to the sleeve parts remaining between them. As a result, it is also possible for this sleeve to be pressed in from the axial end side.

Of the Invention is based on the object, a simple structure few parts existing socket for printed circuit boards to create a good contact to plug pins and allows tolerance compensation.

to Solution to this problem, the invention proposes a Socket with the features mentioned in claim one. further developments The invention are the subject of subclaims.

There the socket, which is proposed by the invention, only from consists of a single sleeve, the cost of materials is low. Also, the production is simplified because no folding of an outer Mantels to an inner sleeve is more required. The inwardly hyperbolic bulging ridges between the slots allow a linear contact between the pin and the bars. By the bulging shape is also a tolerance compensation both what the diameter of the plug pins as well as their geometrical arrangement.

The Contact elements at the bottom of the socket can either parallel to the longitudinal axis of the socket, so no additional operation is required, to turn her over. This type of arrangement of the contact elements is provided when the contact elements in plated through holes the printed circuit board to be pressed.

It But it is also possible that the contact elements opposite the longitudinal direction of the sleeve radially outward or bent inward so that their then the circuit board facing sides lie in a plane. In this case, done a connection in SMT. It is also possible that at the Arrangement of the contact elements for a connection in SMT Nevertheless, one or two contact elements are not bent to in this way a kind of alignment or positioning of the sleeve to reach.

There the socket no the slotted sleeve outside having surrounding reinforcing sleeve, the Pressing the sleeve done by that with a Tool at the printed circuit board end associated with the end of the slots is attacked. There is no risk that the Bridges between the slots bend. To this possibility can be further improved, can be inventively provided be that several or in particular all slots on the lower ring area the sleeve in a plane perpendicular to the longitudinal axis start the socket.

Around The socket with automatic grippers is particularly easy to position can, according to the invention in training be provided that the upper edge of the sleeve has recesses. Based on these recesses, a gripper can be a positioning make the sleeve.

Around to be able to twist the sleeve with certainty, can according to the invention in a further development be provided that the recesses have side edges, the run parallel to the longitudinal axis of the sleeve.

In a further development of the invention it can be provided that the lower ring area has at least one, preferably a plurality of windows below the end of the slots. These windows can be used to force a tool engaging the window for pressing into the plated through holes in the circuit board initiate. In addition, the windows which can be produced by stamping, can be used for fastening a cylindrical housing with internal locking lugs.

Also here can be provided for a further feature of the invention, that the bottom edge of the windows in the lower ring area in one plane is transverse to the longitudinal axis of the socket.

at run the aforementioned electrical connector socket the webs lying between the slots obliquely to the longitudinal axis. at the contact bush, however, the webs extend in the longitudinal direction.

According to the invention be provided in the socket proposed here also that the webs and thus the slots obliquely to the longitudinal axis run. Unlike the slanted slots and In the prior art, webs have a non-positive fit because of the lack of it connected outer sleeve the effect that when inserting a pin a yielding of the webs not only can occur radially outward, but also a compression of the sleeve by a rotary motion.

According to the invention be provided that the sleeve of a sheet metal blank punched out and bent, in particular, the one another facing away edges of the sheet metal blank after bending by a Omega connection or a dovetail connection with each other get connected.

According to the invention the course of the webs and the slots formed between them determined by the sheet metal blank after bending is twisted in such a way that the upper ring area opposite the lower ring area is rotated by a certain angle, for example by about 30 to about 60 degrees. This way results a constriction of the sleeve, which causes that the bars run inward in the manner of a hyperboloid. Optionally, the rotation can also be a larger Angles are made as 60 degrees.

Further Features, details and advantages of the invention result arising from the claims and abstract, whose both texts by reference to the content of the description The following description of preferred embodiments will be given the invention and with reference to the drawing. Hereby show:

1 a blank for producing a socket according to the invention in a simplified representation;

2 the side view of the rolled up to a socket blank of the 1 ;

3 the side view of the completed socket.

1 shows a punched out of a flat piece of sheet to cut for producing a socket proposed by the invention. It should be what is in 1 is shown above, the upper end of the socket mean, while in 1 to represent the lower area in the printed circuit board associated area. The sheet metal blank is approximately rectangular. At its two opposite longitudinal edges 1 . 2 contains the sheet metal blank serving for mutual locking training, namely at the right longitudinal edge 1 two dovetailed projections 3 , and on the opposite longitudinal edge 2 at the same position two dovetail-shaped notches 4 , At the lower front edge 5 of the sheet metal blank are four projections 6 stamped out, which lie in the plane of the sheet metal blank and by gaps 7 are separated from each other. The front edge 5 within the interstices 7 lies on a straight line running transversely to the longitudinal axis. The four projections 6 are all the same size. The projections 6 form contact elements.

At the opposite end edge 9 are in axial extension of the projections 6 also projections 10 formed, between which recesses 11 are formed. The recesses 11 have side edges 12 on, which are parallel to the longitudinal axis of the sheet metal blank.

The sheet metal blank has a plurality of parallel to the longitudinal edges in the illustrated embodiment 1 . 2 running slots 13 on, by longitudinal bars 14 are separated from each other. Both the slots 13 as well as the footbridges 14 have the same length and parallel side edges. All the bridges 14 have the same width, and all the slots 13 also have the same width. In the illustrated embodiment, the width of the slots and the width of the webs is identical. But this is not necessary.

Above the slots 13 is one between both longitudinal edges 1 . 2 continuous area 15 formed, which forms a continuous closed ring area after rolling up the sheet metal blank.

At the opposite end is below the slots 13 or webs 14 also an area 16 formed by the one longitudinal edge 1 to the other longitudinal edge 2 passes. This later also a ring area forming area has several windows 17 on, which are equal to each other and whose lower edges 18 lie in a straight line.

This initially flat sheet metal blank is now an in 1 from top to bottom running straight line curled in the way that the right longitudinal edge 1 the left longitudinal edge 2 approximated and the two longitudinal edges are joined together. This is done in the illustrated embodiment in that the dovetail projections 3 in the dovetail notches 4 be pressed.

This creates a socket, as in 2 is shown. In this position, the webs run 14 and the footbridges 13 still straightforward. In order to bring the socket into its final form, it is held in the region of its lower end in a tool, for example by attacking the contact elements forming projections 6 or by intervening in the windows 17 , Subsequently, with a tool in the recesses 11 intervened and the upper ring area 15 the sleeve is rotated by an angle of, for example, 45 degrees. This creates the socket in the form as they are in 3 is shown. The bridges 14 and the slots 13 run obliquely to the longitudinal axis. Due to the oblique course results in a constriction with a minimum diameter approximately in the middle of the longitudinal extent. This means that the webs 14 run inward.

To connect the socket with the PCB, you can use a tool in the window 17 be intervened. Then, the force for pressing in the longitudinal direction of the socket on the lower edge 18 the window 17 be initiated. An attack on the opposite upper end edge is not possible because of the thin webs.

Instead of the windows 17 can with a corresponding tool also at the end of the slots 13 to be attacked.

After pressing, in which acting as contact elements projections 6 are pressed with their edges in the plated-through holes, the socket is fully connected to the circuit board. Now, if a plug is inserted from above into the socket, so are the webs 14 line-shaped along the circumference of the webs. A yielding of these bars 14 can be compensated by a spring of the socket in the direction of rotation about the longitudinal axis. This possibility is given only in that the sleeve is connected only in the region of its lower end to the circuit board, and that its upper end is free.

In the illustrated embodiment, the slots are 13 in the sheet metal blank parallel to the longitudinal edges to be joined together 1 . 2 oriented. The sloping course of the slots 13 and the bridges formed by them 14 is by twisting the upper ring area 15 opposite the lower ring area 16 reached. Of course it is also possible that the slots 13 in the sheet metal blank at an angle to the longitudinal edges to be joined together 1 . 2 be positioned, and that after rolling up the sheet metal blank, the upper ring area 15 opposite the lower ring area 16 is twisted.

This allows the slots 13 and footbridges 14 be oriented in side view parallel to the longitudinal axis, wherein further a constriction is present and the webs 14 run inward.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102005013989 [0002]
• - DE 102005063286 [0003]

Claims (14)

Socket for printed circuit boards or the like, with 1.1 a sleeve, the 1.2 in the region of its upper and its lower end each having a substantially closed ring area ( 15 . 16 ) and 1.3 between the ring areas ( 15 . 16 ) extending and connecting these webs ( 14 ), which are bulged inwards in order to form contact areas, and 1.5 between slots closed on both sides (FIG. 13 ) and 1.6 at the lower ring area ( 16 ) arranged for mechanical and electrical connection to the printed circuit board contact elements ( 6 ). A socket according to claim 1, wherein the contact elements ( 6 ) are designed and constructed for connection in SMT. Socket according to claim 1 or 2, wherein the contact elements ( 6 ) are determined and designed for pressing into plated through holes. Socket according to one of the preceding claims, in which the beginning of the slots ( 13 ) at the lower ring area ( 16 ) lies in a plane perpendicular to the longitudinal axis of the socket. Socket according to one of the preceding claims, wherein the upper edge of the sleeve recesses ( 11 ) with side edges running parallel to the longitudinal axis ( 12 ) having. Socket according to one of the preceding claims, wherein the lower ring area ( 16 ) Window ( 17 ) having. Socket according to Claim 6, in which the lower edge ( 18 ) the window ( 17 ) in the lower ring area ( 16 ) lies in a plane transverse to the longitudinal axis of the socket. Socket according to one of the preceding claims, in which the slots ( 13 ) and the webs ( 14 ) extend obliquely to the longitudinal axis of the sleeve. Socket according to one of the preceding claims, in which the sleeve punched out of a sheet metal blank and bent. A socket according to claim 9, wherein the edges facing away from each other ( 1 . 2 ) of the sheet metal blank are joined together by an omega connection or a dovetail connection. Socket according to one of the preceding claims, in which the sleeve is made of a resilient, conductive material, in particular CuBe exists. Socket according to one of the preceding claims, wherein the course of the webs ( 14 ) and the slots formed between them ( 13 ) by twisting the upper ring area ( 15 ) opposite the lower ring area ( 16 ) of the sleeve is determined after bending the sheet metal blank. Socket according to Claim 12, in which the two ring areas ( 15 . 16 ) are rotated through an angle of about 30 to about 60 degrees. Socket according to one of the preceding claims, wherein the webs ( 14 ) and the slots formed between them ( 13 ) have approximately the same width.