DE1276159B - Stopper plate with an insulating base and process for its manufacture - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

H05k

German class: 21c -221

Number: 1276159

File number: P 12 76 159T0-34 (A 47878)

Filing date: December 14, 1964

Opening day: August 29, 1968

The invention relates to a stopper plate with an insulating base, the with a plurality is provided by plug openings, an at least paired electrical connection of the individual Stopper is provided, as well as a method for manufacturing such a stopper plate.

It is already known to attach a conductive strip to a flat insulating support to provide the conductive strip with side tabs after the conductive strip has been applied be bent on the insulating carrier in bores of the insulating carrier. With a sufficient one A number of such bent tabs a fastening of the conductive strips is achieved. The conductive strips attached in this way die- * 5 nen to produce electrical connections between switching elements by soldering.

It is also known to attach a conductive foil to an insulating foil, in both of which Foil openings are punched, and the edges ao to bend from openings in the conductive foil like a rivet into the openings in the insulating foil. Through this on the one hand, the two foils are fastened to one another and, on the other hand, they are soldered on the connecting wires of switching elements in as these openings are favored by capillary action.

The present invention is based on the object to provide a stopper plate in the possible simply an optional at least in pairs electrical connection between each inserted plugs causes. It should be manufactured with the help of printed circuit technology to be possible.

According to the invention, this object is achieved in that at least two openings are connected to one another through a printed circuit path of conductive material bonded to the insulating base are connected and that at least one tongue of the conductive material at least at both openings partially protrudes into the clear opening cross-section.

A particular advantage of the invention is that when there are plug plates corresponding to the state of the art, in which the plugs were first inserted and then wired together on the other side of the plate, only the printed circuit paths have to be applied to these plates without that the structure of the plate itself would have to be changed or special connectors would have to be used. The invention can be particularly advantageous in the field of data processing, e.g. B. in such stopper plate with an insulating base and
Process for their manufacture

Applicant:

AMP Incorporated, Harrisburg, Pa. (V. St. A.)

Representative:

Dr. phil. G. B. Hagen, patent attorney,

8000 Munich 71, Franz-Hals-Str. 21

Named as inventor:
Bruce Richard McFadden,
Harrisburg, Pa. (V. St. A.)

Claimed priority:
V. St. v. America December 19, 1963
(331785)

Calculating machines are used in which it is common to have a pair of plates, which are arranged identically Contains interlocking contact parts for the purpose of interlocking the contact parts with one another to move. The arrangement of the contacts on the boards corresponds to a particular one program to be carried out.

The stopper plate according to the invention can according to a further embodiment of the invention according to a Process can be produced, which is characterized by the steps: connecting a conductive Layer with an end face of the plugged base in such a way that at least two plug openings are covered, applying one that is resistant to etching Pattern on the conductive layer in the form of a conductive connecting between two openings Way, with at least one tongue at least partially at the respective opening runs over the opening, and etching of the outside of the resistant pattern Area of the conductive layer while maintaining the conductive path between and the tongues on the openings.

The particular advantage of this manufacturing process is that the plug openings in front of the Manufacture of the printed circuit can be attached. This avoids that the

809 598/389

3 4

Circuits themselves at risk of damage when making a printed circuit

exposed while the openings are made on an electrical panel, proceed as follows:
will. The table 14 a is first in the desired

The invention is presented below by means of a form and the necessary connector opening embodiment with reference to the 5 genes are printed before applying the Drawings explained in more detail. Shift paths attached. The finished plate

F i g. Figure 1 is a partial plan view of a part then being covered with a metal foil or layer a plug plate which is electrically conductive printed which is fixed to the surface of the base plate Has switching paths, the groups of plug openings in connection, what with the help of a suitable connect gen; io adhesive, e.g. B. epoxy resin is achieved. the

Fig. 1 a is a partial plan view of a foil consists for example of a copper layer. Part of a stopper plate, in which between a After attaching the film to the plate over the Pair of connector openings simplified connection openings, the film is in a suitable manner with funds are provided; a protective layer of tin or similar material

F i g. 2, a partial section along the line is covered to protect the copper during operation in Fig. 1, in which a plug in from the zen and to increase the contact properties. Opening is shown in the extended position; The metal layer that is then made of the coated

F i g. 3 is a partial cross-sectional view of the copper layer, then with a long one of line 3-3 in FIG. 1 in which a plug is fully coated with etch resistant material so that it is plugged into place; ao _s i _c h results in the desired circuit pattern. That

Figure 4 is a cross-section of the connector taken along with the aid of standard covers Line 4-4 in FIG. 2. or photographic process. Then the slide

The in F i g. 1 shown plug plate 14 a, in the following exposed to an caustic medium, so that the overlying connector board called, a base plate contains liquid metal areas outside the desired insulating material 14 b, which are etched approximately right- ³ 5 switching paths, so that the square form and has a plurality of openings printed circuit, such as 10a, b has on the panel from-18 forming a square lattice shape, which is provided with tongues 12 which are arranged on the harvester. Various printed circuit openings, such as. B. the opening 18 a, hang out, circles are attached to the surface of the board to While the printed circuit for connection

individual selected groups of plug openings 3 ° making a pair of openings as easy as connecting with each other. Each of the switching paths, as shown in FIG. 1 a may be shown, it may be desirable. B. the switching paths 10 b, 10 c, 10 d, 10 e and 10 /, be worth providing more complicated switching paths to consist of a layer of metal foil, which is connected to a higher conductivity and greater resistance of the plate and is arranged so that they are able to reach plug openings of a group via electrical cables against wear and tear during use. Examples of different types of tending paths connecting such that the switching paths into the openings are shown in FIG. 1 shown. In each case, this group of plugged-in connectors is provided via the switching a pair of tongues 12 at each opening, paths are electrically connected to one another. which is connected to a switching path. Two

In Fig. La a simplified form of one or more tongues can be provided if necessary, printed circuit path 10α is shown with the 4 <>. In the embodiment according to FIG. 1, the connector panel 14 α is connected and connects a pair of for use together with a special connector openings 18 α to one another. The advantageous plug construction is provided, switching path 10 α consists of a middle right-hand tongues 12, which are arranged at each opening to the angular part that is provided between the openings 18 α connection with the switching paths and on each of its Ends separated by a 45 at an angle of 120 °. It is provided an ear or tongue 12, which are also on the α by 120 ° relative to the center of an edge of the adjacent opening 18 and partially the insertion determining flat area 26 extends through this opening time. The circuit offset, which pre-exists on one side of the connector opening from a metal foil which is seen with the panel 14 α .

connected is. The tongues 12 are floating 5 °. The printed circuit path 10 b connects in FIG. 1 in the manner of a boom into the opening 18 α , a pair of openings 18 b. The openings 18 b so that when a pin is inserted into the opening 18 α are each on opposite sides with the position of the tongue 12 is detected by the plug. It is then deformed downwards into the opening into the plug when it is inserted, so points 26 are provided. The printed circuit path 10b that it then between one side of the plug and 55 contains a central part which lies between the openings of one side of the opening and in this way lies and has end sections which open the plug almost completely to make electrical contact with the plug surround. These rearranged areas contain at the flat point the larger, central rectangular part of the printed side opposite the opening a switched circuit in FIG Holding force 12 is provided, which extend inwards into the gene that extends the printed circuit against an adjacent opening. On the counter-displacement ensured by frictional forces, the movement of a plug within the opening through 'overlying side in the vicinity of the flat point 26, the circuit contains a thin tongue 28, which can be generated α. It has been found that 65 extends along the flat point 26 and the narrow, relatively narrow tongue 12 is more resistant to the forces than the curved shift travel area. That can stand, as it occurs with repeated insertion and extension 26 partially overlaps the pulling out of a plug in the connector panel. intended opening above the flat point 26 the,

Claims (1)

5 6 as from Fig. 3 can be seen, in the (seen in cross-section- lying openings with a third one lying away- N) the lower area of the connector panel opening connects the opening in front. With the help of these appendages see is. The extension 28 serves essentially as in the form of printed switching paths of the type Visible display of the insertion position, so that the switching path 10 / can make any desired connection Orientation of the plug relative to the flat 5 of the openings can be made and any Position 26 is displayed and thus facilitated. Number of openings can be connected to each other The plug 16 shown in FIG. 4 includes the. a central body 20 having a horseshoe-shaped shape. The tongues 12 are of the same thickness as the cross-section. The connector is made by rolling up a metal plate or the metal layer that is attached to the metal plate, whereby the horseshoe-shaped surface of the base plate is attached. The tongue-shaped body part 20 forms. The edges of the plate are sufficiently thin that they are folded inwards in the plug (at point 24) and the opening between the plug and the side wall of the opening form a flat surface which can be clamped in complementary to the opening. Will be more than flat spot 26 is. The edges 24 are mutually used a tongue, so it is clear that the hindrance is separated by an open slot 22, so that the 15 tion when inserting through the tongues compressible in the radial direction in the opening lie-body part 20 is then greatest, when the two is so as to provide a resilient fit in the plug opening tongues are diametrically opposed to each other. Therefore, allowance 18 b . Due to this elasticity, the tongues are also against each other by a good contact with the tongues 12 is achieved, angles of less than 180 ° offset so that the when the plug is initially inserted, such as 20 reduction in the diameter of the plug opening from FIG. 2 can be seen to be bent downwards into the opening by the tongues present in the opening. The tongues 12 are adorned. permanently deformed. They keep the folded over. In one embodiment of the invention, the downward facing position was and become 0.071 mm thick at the initiating layer. The connector panel put the connector wiped clean so that a 25 had openings (e.g. 18b ) that had good contact between them and the sides of the spacing of 6.35 mm from each other. Adjusts the diameter of the body part 20 of the plug. It said openings were 3.81 mm. The dimensions of the increase indicated that at an elastic joint 12 were approximately 1.016 mm by 0.662 mm. The pressing of the body part 20 in the radial direction switching path 10 b had a width of approximately a relative movement along the circumference of the 30 5.08 mm, while the curved opening around the body part between this and the sides of the giving parts between the tongues 12 results in a wide plug opening . This relative movement is shown in 1.016 mm. There were different proximity of the slot 22 largest and smallest switching paths of the in FIG. 1 is made on the part of the plug opposite the slot, with the minimum distance between 2 switching paths. Like the one from FIG. As can be seen from 1, the tongues 35 were 1.016 mm. The entire arrangement was used with 12 switching voltages up to 50 volts offset relatively far from the slot 22. It is arranged so that the shear forces as a result of the friction have been found that the average resistance exertion along the perimeter of the openings caused by each circuit part between plugs connected by this switching the relative movement of the opening edge opposite circles is less than the perimeter of the plug, are low. 40 1 milliohm and that this value hardly doubled under particularly tough test conditions, especially when two tongues 12 at each opening, then there is the advantage that the frictional forces generated when the plug inserted the minimum breakdown voltage was found between adjacent switching paths 1.2 kV over a further area of the switching path on which was. It was also found that a tongue 12 distribute b in the surface of the control panel 14. If only each opening is sufficient to use a single tongue, the electrical and mechanical properties tend to cause the frictional forces to reach one another in the connection. The tongues were point of focus and that accordingly strong enough in the vicinity to allow repeated insertion and herder the tongue to be provided with a wider switching path for pulling out the connector without failure than is the case according to the embodiments of FIG. 50. The areas in which the switching paths with F i g. 1 is the case. It may be desirable that the underlying circuit board made of insulating material connected to the width of the switching paths around the openings is sufficient, as small as possible, so that there is sufficient space to hold the switching path in a fixed position.
Distance between the individual switching paths, e.g. B. Claims
10 & and 10c results in the risk of through- 55 breakage or short circuit between the switch- 1. stopper plate with an insulating base, because of to prevent. those with a plurality of plug openings The switching paths 10 c, 10 rf and 1Oe are provided similarly, one being at least in pairs the already described 10 b. They connect an electrical connection between the individual plugs Pair of adjacent connector openings. 60 is provided, thereby marked However, there are somewhat different switching paths that at least two openings (18 b) with patterns used, which are available in the- each other through a printed circuit board fit in the free spaces and at the same time move away (10 b, 10 c, 10 d, 1Oe, 10 /) with the iso- compared to the adjacent switching path equalizing base (14 ft) connected conductive Leave enough free space. The course of the switching 65 material are connected, and that at both Weges 10 / contains a first part, which has a pair of openings each with at least one tongue (12) adjacent connector openings connects the conductive material at least partially in and a further part into which the pair protrudes next to one another into the clear opening cross-section. 2. Stopper plate according to claim 1, characterized in that at least one opening (18 b) is provided with a flat side (26) which is provided as an index means for a complementary stopper surface (24), and that on the opening side opposite the flat side of the opening a pair of mutually spaced tongues (12) of the printed circuit path (106, 10 c, 10 d, IQe, 10 /) is provided. ίο 3. A method of manufacturing a plug plate according to claim 1 or 2, characterized by the steps of: connecting a conductive layer to an end face of the plug-apertured base (146) in such a manner that at least two Plug openings (186) are covered, application of an etch-resistant pattern (10 b, 10 c, 10 rf, 10 e, 10 /) on the conductive layer in the form of a conductive path connecting between two openings (186), with the respective opening in each case at least one tongue (12) runs at least partially over the opening, and etching of the area of the conductive layer lying outside the resistant pattern while maintaining the conductive path (10 6) between and the tongues (12) at the openings. Considered publications:
German Patent No. 1121139;
Austrian patent specification No. 209 982. 1 sheet of drawings 809 598/389 8.68 © Bundesdruckerei Berlin