DE2352973A1 - Subassembly with switching modules - has an insulating supporting plate for rectangular modules with connecting pins - Google Patents

Abstract

The insulating plate has on both sides families of parallel conducting paths, with those on one side crossing those on the other. Metallised holes are provided in the plate for the module connecting pins and for connection of connecting paths on two sides of the plate. The holes are arranged in an orthogonal grid whose pitch corresponds to the module pin spacing. A certain circuit configuration is obtained by corresponding connections between conducting paths using the above holes. The coordinate axes of the above orthogonal grid are rotated with respect to those of the conducting paths. Edges of circuit modules are parallel to the coordinate axes of the above grid, so that the modules are also rotated with respect to the conducting paths.

Description

TELEFUNKEN COMPUTER GmbH, Constance

October 19, 1973 PT-KN Za / ro

Tightly packed electrical assembly

The present invention relates to a densely packed electrical assembly for data processing systems. In particular the invention relates to an insulating material carrier plate and at least one terminal pin having, rectangular circuit module existing electrical assembly, with the insulating material carrier plate on both

Pages with '_ ■ ____ ^

Multitudes of criss-crosses on the two sides in terms of the pages themselves in terms of their main directions mutually parallel line runs is provided, and for the purpose of receiving the connection pins of the circuit modules and connecting the line runs on both sides of the Isolierstoffträgerplatte has holes made conductive, which are arranged in the form of a rectangular grid, the Grid dimension of the pitch of the connection pins of the circuit modules corresponds to and where a specific circuit configuration is realized by appropriate connections between the cable runs including the holes.

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Such an arrangement is already through the DT-AS 1 273 021 known. Despite the compact design, this arrangement enables a clear circuit structure and is intended in particular be used for high-speed data processing systems, whereby by means of the in claim 1 of said A significant shortening of the connecting lines should be achievable.

The object of the present invention is to modify an electrical assembly of the type mentioned so that that a total of more circuit modules can be connected to an insulating support plate of a given size, than is achievable with the known techniques. In this way, a substantial proportion of insulating material support plate and thus an equivalent proportion of packing space can be achieved save, whereby - based on an entire circuit complex - a significant shortening of the totality of Connecting lines is achieved. The electrical assemblies constructed in the manner according to the invention are thus in particular suitable for use in fast data processing systems. In addition, however, the invention is applicable to any type of means Circuit modules constructed assemblies advantageously applicable, whereby under circuit modules both integrated circuits, as well as discrete components or so-called concentrated ones Components are to be understood. The invention consists in that the coordinates of the rectangular grid with respect to the

en
Main direction / the lines are rotated and that the

Circuit modules with respect to their edges in per se known

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Way parallel to the coordinates of the rectangular grid are arranged so that the circuit modules are arranged rotated relative to the main direction of the cable runs.

Further features of the invention emerge from the subclaims.

The details of the invention are set forth below with reference to FIG Drawings explained in more detail.

Fig. 1 shows a comparison between a conventional type on an insulating carrier plate applied line and hole grid (Fig. La) and one arranged in the manner according to the invention Line and hole grid (Fig. Ib);

Fig. 2 shows a section of one in accordance with the invention Way with main and secondary lines provided with insulating support plate;

Fig. 3 shows a section of one in accordance with the invention Way with meandering main lines and with secondary lines provided with insulating material carrier plate;

Fig. K shows a section of an insulating material provided in the manner according to the invention with two adjacent meandering main lines, the meandering shape being realized by straight sections (Fig. 4a) or by curved line sections (Fig. Kh) ;

KN 73/19 50 98 19/03 99 / k

Fig. 5 shows a comparison between one in conventional Art with a circuit module equipped insulating support plate (Fig. 5a) and an in according to the invention equipped insulating material carrier plate (Fig. 5b), the connecting pins of the Circuit modules are to be connected via main lines;

FIG. 6 shows a comparison analogous to FIG. 5i, the Connection pins of the circuit modules via secondary lines would have to be connected;

FIG. 7 shows, by way of comparison, a line and hole grid according to FIG conventional type (Fig. 7a) and a line and hole grid designed in accordance with the invention (Fig. 7b);

Fig. 8 shows a section of an in accordance with the invention Way designed insulating material carrier plate, in which according to a specific circuit configuration Connections between the lines and the holes are made;

Fig. 9 shows a complete with circuit modules and the same type of equipped insulating material carrier plate, which is equipped in a comparatively conventional manner (FIG. 9a) or in a manner according to the invention. (Fig. 9b)

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50981 9 / U399

From Fig. 1 the basic concept of the invention Construction technology visible.

According to Fig. La there is one designed in a conventional manner Wiring matrix made up of a plurality of mutually parallel lines 20 which, for example, in the direction of the coordinate χ get lost. The one on the back of the insulating material carrier plate applied wiring matrix also consists of a A plurality of mutually parallel lines 21, which in the direction of the lines 20 of the front side vertical direction y run and are shown in dashed lines.

The connection between the two sides of the insulating support plate 1 is established by a large number of bores 4 made conductive, which are arranged in a grid-like manner within the wiring matrices on both sides. The coordinates x ¹ , y ¹ of the grid on which the arrangement of the holes 4 is based are aligned with the coordinates x, y of the lines 20, ie the coordinate systems for the hole grid and the lines are identical.

In the following it is assumed that the distances between the lines 20 and 21 and the distances between two adjacent rows of bores k are the same in each case. The distance dimension Δ corresponds to. in particular the commonly used pitch of the connecting pins of circuit modules commonly used.

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In Fig. Ib a section of an insulating material carrier plate 1 designed in accordance with the invention is shown with a wiring matrix and the associated grid of the holes 4 made conductive. Since the distance dimension Δ is constant with regard to the distances between the bores 4, nothing may change with regard to their relative assignments. For this reason, the illustration according to FIG. 1b is based on a grid of bores 4 which is arranged identically ^{with regard to the coordinate system x 1} , y ^{1 of the bores 4.} According to the invention, however, the coordinates x, y of the wiring matrices themselves are ^{rotated with respect to the coordinates x 1} , y ^{1 of} the hole grid, specifically in accordance with the illustration in FIG.

This relative rotation of the coordinate systems of bores 4 and lines 20, 21 now results in a reduction in the line spacings to Δ ¹ , so that more lines can be accommodated in relation to a unit length.

With an angle of rotation of 45, the relation ^{results for the reduced line spacing dimension Δ 1}

With regard to the angle of rotation and the choice of coordinate systems, as well as their relation to the edges of the insulating material carrier plate the following comments are necessary:

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The optimal conditions should be such that the coordinates x, y of the wiring matrix run parallel to the edges of an insulating material carrier plate (a rectangular insulating material carrier plate is of course assumed) and that the coordinate system is rectangular. The optimal angle of rotation between the x, y coordinate system of the line runs and the x ', y ¹ coordinate system of the bores is - as shown in the figures - k $ . The advantage resulting from this dimensioning information is that all of the cable runs running over an insulating material carrier plate have the same lengths, which is to be regarded as advantageous in particular from a manufacturing point of view.

In the further drawings, which serve to explain the invention, there are several examples with regard to the possibility of implementation the standard grid for the bores and the lines shown, in particular comparatively Representations between the construction technology known from the prior art and the construction technology possible according to the invention are reproduced.

In Fig. 2 is a section of an insulating carrier plate 1, in which the cable runs consist of two subsets. One type of the line runs 30 extends

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between two adjacent rows of bores over the entire width or length of the insulating carrier plate 1. These cable runs 30 are referred to below as main lines. The lines 31 of the second kind each extend in the row of the bores 4 themselves and thus connect two bores 4 to one another in a conductive manner. In the illustration according to FIG. 2, the corresponding main and secondary lines are on the back of the insulating carrier plate each indicated by dashed lines.

In the illustration of FIG. 3, a section from an insulating material carrier plate 1 provided in the manner according to the invention with a uniform grid of holes and lines is shown. With regard to the design of the secondary lines 31 and the hole pattern, this section corresponds to that shown in FIG. 2. The bores 4 each have a concentric solder eye 5, which is generally about 30 % larger in diameter than the diameter of the bore 4 itself. Advantageously, as shown in FIG. 3, the main lines 30 are meandering between the rows of bores 4 passed through. This special design of the main lines 30 makes it possible, in particular, to achieve the same distances between the main and secondary lines 30 and 31 on the one hand and between the main line 30 and the bore 4 on the other hand. According to the example shown in FIG. 3, the main lines 30 consist of straight lines joined together. This results in - as shown, a sequence of joined-together, each alternating after the

_{KN 73/19} 509819/0399

/ 9

one or the other side of the associated center line between two adjacent rows of bores directed trapezoidal pieces. The distance between the center lines corresponds to the reduced one Line spacing Δ '.

According to the representations of Fig. Ka. and kb a modified variant of the design of the cable runs is shown. This variant represents a departure from the conception of the main and secondary lines.

Both in Fig. Ka and in Fig. 4b, two adjacent, mutually parallel main lines 30 are provided between two adjacent rows of bores 4, which extend analogously to the main lines according to FIGS. 2 and 3 over the entire width or length of the Extend insulating material carrier plate. The main lines 30 according to FIG. Ka. are implemented analogously to the example of FIG. 3 by juxtaposed trapezoids, with approximately the same distances being maintained between the straight sections themselves and between the bores and the adjacent straight sections.

According to the illustration in FIG. Kh , the main lines 30 are implemented by curved line pieces joined to one another, for example by circular arc pieces, the same applies to the relative distances as for the trapezoidal main lines 30.

¹ ^ ⁷³⁷¹⁹ 5: 098 19/0399

A special feature shown in FIGS. Ka and kb relates to the design of the soldering eyes 5. In an advantageous embodiment, the soldering eyes 5 are widened in the form of drops in the direction of the preferred direction of the main lines. This is implemented according to the type shown so that tangential to the concentric soldering eyes, these are widened in the direction of the coordinates of the hole grid up to the center line lying parallel to the main direction of the main lines 30 and running through the holes k .

From the representations of FIG. 5 and FIG. 6, the through Application of the construction principle according to the invention achievable progressiveness can be seen in a remarkable way. as A wiring matrix consisting of main and secondary lines was used as a basis; as circuit modules 6 are integrated Circuits with two rows of eight connection pins 6l each are shown.

In FIGS. 5a and 5b it is compared which connection options for one according to the prior art (FIG. 5a) and for one arranged in a manner according to the invention (FIG. 5b) Open circuit module 6. In both Figs. 5a and 5b is a wiring consisting exclusively of main lines 30 matrix used.

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In Fig. 5a is a Fig. La corresponding drilling and Line grids shown with identical coordinate systems. The circuit module 6 is said to be in accordance with the known construction technology arranged. As the illustration can be seen without further ado, the 16 connection pins of the circuit module are four in the y-direction Running cable runs are available, the connections a ... h, and the connections i ... q each to two Lines can be connected. This means that only 8 connections of the circuit module lead to the outside can be. ' With regard to the main lines running in the x-direction the conditions are better insofar as a line can be assigned a maximum of four connection pins.

If one considers in accordance with FIG. 5b the structure according to the invention arranged circuit module 6, it can easily be seen that the distribution of the connections or the connecting pins of the circuit module 6 is considerably better than is possible according to the example of FIG. 5a. For the 16 pins a total of 2 * 1 lines are available, one of which is sufficient enable good equal distribution. In the example according to FIG. 5a, a total of eight connections can be made with one in the y-direction running line run are connected, so in the example according to the invention there is a line run a maximum of four connections available. ^ This applies to both the in x and in main lines 30 running in the y-direction.

In the representations of Fig. 6a and Fig. 6b is a dem a comparison corresponding to FIGS. 5a and 5b is shown,

«73 / 1J 509819/0399 _{/ 12}

for a wiring matrix based on secondary lines 31 in each case. The same relationships apply here as described with reference to FIGS. 5a and 5b. For the in Fig. 6a shown, arranged in a conventional manner circuit module 6, a total of 20 cable runs are available for direct connection. In contrast, one has to connect the l6 connecting pins arranged in a manner according to the invention Circuit module 6 over a total of 44 lines, it is assumed that the outside of the occupied Bores 4 brought up secondary lines 31 are only led up to the bores 4 and no further.

In Figs. 7 »and 7b is one with holes 4 and Unit area provided with lines of conductors is shown in order to in particular those with the inventive concept of relative rotation the coordinate systems for the hole grid and the Line runs to demonstrate achievable higher line density.

According to the illustration according to FIG. 7a, a unit square is with the edge length 3 * Δ shown, analogous to Fig, la the Coordinate systems for the line and hole grid are identical

2 are. As can be seen, the unit area of size is 9 * Δ a total of 3 lines of length 3'Δ and a total of 9 holes.

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Due to the unit area shown in Fig. 7b, the

Edge length is assumed to be 2Δ y2, result for the ο ·

Area 8Δ four lines; and eight holes. The length of the lines can be strung together for the case shown Determine pieces of arcs at 3.33'Δ; This matches with

a cable extension by the factor % / 2. y2 (ds about 11 %) _t If the
/ Area according to Fig. 7b to the dimensions of the area according to Fig. 7a, then the number of holes also increases to 9 and the number of lines to ^ »23. This means nothing other than that the number of lines available for connection in a unit area ^{increases by 1} H% compared to the known arrangement techniques. An equivalent result is obtained if one considers the size of the metallized area within the unit area. It goes without saying that the same hole or solder eye diameter and the same line strength must be assumed.

FIG. 8 shows a section from an insulating support plate 1 designed according to the invention and modified in accordance with a specific circuit configuration. In principle, the main lines 30 implemented by juxtaposed quarter-circle arcs run in a meandering manner between the adjacent rows of bores k over the insulating material carrier plate 1. As can be seen from the illustration according to FIG. 8, a connection between the soldering eye 5 »of a bore 4 and a main line 30 can be established in a simple manner. It is just as easy to go from one main line 30 to one row

50 98 19/0399 ^{/ l4}

To change the main line of an adjacent row. Included In principle, it does not matter whether the special connecting lines are implemented manually or whether the drawing machine reproducing such circuits is programmed accordingly.

By juxtaposing two completely equipped with identical circuit modules 6 insulating support plate 1 should again the advantages and progressiveness of the structure according to the invention are presented.

The (maximally) densely packed insulating carrier plate shown in FIG. 9a 1 can accommodate a total of 5 ^ circuit modules 6, which are arranged parallel to the coordinate system of the lines and holes. Assuming the dimensions of a circuit module width = 3Δ and length = 7Ä, results by counting that along the narrow side in total and along the long side a total of 5 ^ main lines to the To be available.

According to the illustration according to FIG. 9b, the circuit modules are rotated by ^ 5 in relation to the edges of the insulating material carrier plate 1 arranged on this. There are also 5 ^ circuit modules arranged. The dimensions of the insulation support plates 1 are approximately the same, so that the number of circuit modules 6 are available for connecting Lines is directly comparable.

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The result of the count is that along the narrow side the insulating material carrier plate 55 lines and along the Long side 75 lines are available.

Should be the total number in a practical embodiment not be sufficient, but this can be bridged in a known manner by further insulating carrier plates, which, in order to increase the line density, would have to be carried out according to the inventive concept.

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Claims (11)

Claims From an insulating carrier plate and at least one Terminal pins having, rectangular circuit module existing electrical assembly, wherein the Isolierstoffträgerplatte on both sides with ^. , Multitudes_of "crossing each other" regarding "the two sides" regarding the "pages themselves regarding _ their main directions parallel to each other Cable runs is provided, and for the purpose of receiving the connection pins of the circuit modules and the connection of the cable runs on both sides of the Isolierstoffträgerplatte made conductive holes, which are arranged in the form of a right-angled grid, the pitch corresponds to the pitch of the connection pins of the circuit modules and a certain circuit configuration by appropriate connections is realized between the cable runs including the bores, characterized in that the coordinates of the rectangular grid are rotated with respect to the main direction / the cable runs (20, 21; 30, 31) and that the circuit modules (6) are known per se with respect to their edges Way are arranged parallel to the coordinates of the rectangular grid, so that the circuit modules (6) are arranged rotated relative to the main direction of the line runs (20, 21; 30, 31). (Fig. 5b, Fig. 6b, Fig. 9b) 73/19 5098 19/0399 2. Assembly according to claim 1, characterized in that the main directions (x, y) of the lines (20, 21; 3O, 3l) on both sides of the insulating support plate (l) are aligned perpendicular to each other and that the coordinates of the rectangular grid against the main direction (x, y) of the cable runs (20, 21; 30, 3l) are rotated by 45 °. (Fig. Ib) '"-'' 3 · Assembly according to claim 2, characterized in that the cable runs (20, 21; 30, 31) on both sides of the insulating material carrier plate (1) each consist of two partial groups. 4. Assembly according to claim 3 » characterized in that the two sub-groups are each formed by different lengths of cables, one type of cable (hereinafter referred to as main lines 30) between each two with respect to the main direction (x, y) of the cable runs adjacent rows of bores (4) extends over the entire insulating material carrier plate (1) ^ and wherein the second type of cable runs (hereinafter referred to as secondary lines 31) each extends in the row of bores (4) itself and each has two bores (4) conductively connects with each other. (Fig. 2 and Fig. 3) KN 73/19 50 98 19/0399 2352373 5. Assembly according to claim 4, characterized in that that the main lines (30) are meandering in such a way that they each run approximately centrally between the secondary lines (31) and the bores (4). (Fi _Si 3) 6. Assembly according to claim 3, characterized in that that the two Teilsehareri are each formed by two adjacent main lines (30) extending between two rows of bores (4) adjacent to the main direction (x, y) of the line runs over the entire insulating support plate (l) »
(Fig. 4a, Fig. 4b; Fig. B) 7. The assembly according to claim 6, characterized in that the main lines (30) lying next to one another are designed in a meandering shape, namely in such a way that they are spaced approximately the same from one another and from the bores (4) by which they are driven.
(Fig. 4a, Fig. 4b, Fig. 8) 8. An assembly according to claim 5 or 71, characterized in that the meandering shape of the main lines (30) is realized by juxtaposed straight line pieces. (Fig. 3 and Fig. 4a) 73/19 509819/0399 9. Assembly according to claim 5 or 7 » characterized in that the meander shape of the main lines (2; 21, 22) is realized by curved line pieces attached to one another, (Fig. 4b) 10. An assembly according to one or more of the preceding claims, characterized in that the bores (4) made conductive on both sides of the insulating carrier plate (l) have planar soldering eyes (5) lying in the plane thereof. (Fig. 8) 11. An assembly according to claim 10, characterized in -that the soldering eyes (5) are widened in the form of drops in the direction of the main direction of the lines (30). (Fig. 4a, Fig. 4b, Fig. 8) 73/19 509819/0399