DE1238515B - Arrangement for the construction of electronic assemblies by means of units containing only a single component - Google Patents

Description

GERMAN «TW PATENT OFFICE

EDITORIAL

German class: 21 a4 - 75

Number: 1238515

File number: J 21712IX d / 21 a4

1 238 515 filing date: May 3, 1962

Opened on: April 13, 1967

The invention relates to an arrangement for the construction of electronic assemblies, in particular telecommunications technology, by means of units containing only a single component.

A number of arrangements are already known which allow prefabricated switching units by means of easier to connect connecting elements to entire device circuits or assembly units.

Thus, in one embodiment, polygonal ceramic plates are used on which the wiring is applied like a printed circuit, while the components are either also applied in the same way, as far as possible, or are soldered on in their usual form. These polygonal plates contain switching units, e.g. B. the components of a multivibrator, etc., being used as connection points on the circumference of this polygon, arranged in incisions, solderable metal covers. A number of such ao units are connected by layering them on top of one another, with the necessary connections between the individual plates being made by inserting bare wire into the incisions and soldering. The modules of the American "Project Tinkertoy" provide an example of this technology. B. in the book by G. Seidel, "printed circuits", Berlin 1959, on pp. 42 to 48, are described.

Another type of construction uses rectangular hard paper sheets on which wiring and components are arranged in the manner of a printed circuit. Such plates usually contain whole Assemblies such as amplifiers, modulators, etc. The leads are on the two narrow ones Sides of the panels. Several parallel arranged plates are through at the edges of the narrow Sides of the plates held adjacent wiring plates. The wiring boards mostly have one also has wiring implemented in the manner of a printed circuit. The electrical connection with the The laminated paper panels carrying the components are produced either by soldering or as a plug-in connection. A number of designs are available for an appropriate implementation of such a connection known. The arrangements according to German patents 1 060 940 and 1054130 are only here two examples of many.

Another type of construction is known from German Auslegeschrift 1 069 275, in which box-shaped element carriers, which have conductive coverings on two of their side edges, in grooves of a wiring arrangement designed in the manner of a printed circuit for the construction of electronic
Assemblies by means of units containing only a single component

Applicant:

international Standard Electric Corporation,
New York. NY (V. St. A.)

Representative:

Dipi.-Ing. H. Ciaessen, patent attorney,
Stuttgart 1, Rotebühlstr. 70

Named as inventor:
Hector Thomas Prior, London

Claimed priority:

Great Britain 8 May 1961 (16 638)

base plate can be inserted. Each of these element carriers here contains a component whose Connections are connected to the metal coverings of the element carrier. Has one more component than two connections, the strength of the component carrier regardless of the dimensions of the to double or triple the component to be accommodated in order to have two or four more contact options to obtain. The area of such an element carrier is also always the same. So if their dimensions differ greatly Components, e.g. B. transformers and resistors are used, the area must be accordingly the dimensions of the largest part, i.e. the transformer, are designed, with the element carrier, which contain only one resistor, are poorly used in terms of space.

While with modules the same or similar to those of the American "Project Tinkertoy" or from conventional boards with components assembled with a "printed" circuit

709 549/159

Structural units in the event of failure of a single component always a whole module or a whole circuit board has to be exchanged, the type of construction according to the German Auslegeschrift allows 1 069 235 the replacement of the individual defective component, however, leads to a bad one Utilization of space. The invention now sets itself the task of the advantages of easy interchangeability individual components or the resulting high flexibility in putting together different ones Prevent assemblies from the same basic units with the advantage of good space utilization.

To solve this problem, an arrangement for the construction of electronic assemblies, in particular those of telecommunications technology, by means of units containing only a single component, the have a substantially square base, these units with their base side layered next to one another or on top of one another and connected to one another by lateral end plates are used and the task at hand is achieved in that the individual in their basic form, As is known per se, square-shaped units also have different dimensions in their base area, that from the dimensions of the largest component to be accommodated a basic unit with im substantially square base is formed with beveled corners that these Bevels corresponding side surfaces are arranged the connections and that from this basic unit Depending on the size of the other components sub-units by division parallel to the Base surface and / or the side surfaces of the cuboid takes place in such a way that the resulting sub-units at least one corresponding to the beveled edges of the base of the base unit Have side surface for the connections and the division factor is chosen so that the sub-units Can be assembled as a building block to form the basic unit, that also the wiring the assembly thus built up by layering the units in the manner of building blocks by connecting the connections on the units with cable runs arranged in a manner known per se on the end plates he follows.

The invention will now be described in detail with reference to the figures. Here represents

F i g. 1 is a simple amplifier circuit diagram;

F i g. 2 shows how the circuit can be spatially arranged with modules according to the invention;

F i g. 3 and 4 sketch the structure of an amplifier according to FIG. 1 according to the invention;

F i g. 5 shows a wiring board;

F i g. 6 and 7 show split modules and their interconnection;

F i g. 8 schematically shows the wiring of the amplifier.

The in F i g. The simple two-stage amplifier shown in Figure 1 is a speech amplifier with an input and output transformer and .RC coupling between the two stages. Its function is taken from the circuit sufficiently evident. It has six connection points, with I and II being the input, III and IV the output as well as V and VI are the connection of the power supply.

The amplifier has three types of components. The first consists of the simple gyroscopic

elements such as capacitor 2 and resistor 3. Such elements can be made sufficiently small in the desired shape. The second type consists of the transistors 5 and 11. The space required by these active elements can be kept sufficiently small, with the greatest space requirement in commercial devices being created by protective housings and connection elements. The third type consists of input and output transformers 1 and 10. These elements

ίο have large dimensions in relation to the other two types of construction elements. But it is also very difficult to significantly reduce its size.

Despite the different dimensions of the individual components, a module arrangement is possible, which is based on the smallest possible footprint of the spatially largest component and thus becomes one results in a really compact structure with uniform dimensions.

F i g. 2 now shows such a structure of the in FIG. 1 amplifier shown as a circuit diagram. The arrangement has an essentially square cross-section, which is determined by the dimensions of the transducers 1 and 10 as the largest components of the arrangement. The modules for the other components have at least one dimension in common with this largest design, but otherwise form part of these. For this purpose there are additional wiring boards in module form Wl, W2, W 3, whose task it is. Establish connections between individual modules, and at the same time also contain connections leading to the outside.

An arrangement constructed in this way results in a cuboid shape, the length of which is determined by the number of the modules used.

Such arrangements can easily be assembled with others constructed in the same way.

The implementation of such a structure according to the invention is shown in FIGS. 3 to 7 shown. The modules containing the amplifier elements 1 to 14 and the three wiring plates Wl, Wl and W 3 are held by two connection plates 15, 16 which run in the longitudinal extension of the arrangement and simultaneously serve to interconnect the modules. For this purpose, there are four parallel running lines on each connection plate. Such terminal plates can be cut from unit lengths for the case at hand.

If one of the four cable runs 17 a to Yld or Yle to Ylh located on each connection plate 15 or 16 is not required over its entire length, corresponding parts can be removed from it. If these cable runs are made in the manner of printed circuits, parts that are not required can be removed by etching. If, on the other hand, wires are attached as cable runs, corresponding parts can simply be cut out.

Another possibility is to apply pre-cut wiring pieces to terminal plates 15, 16 made of simple insulating material. In the drawing, the cable runs are attached to the side of the connection plates facing the modules, while the outputs of the modules 18 are connected to the outside of these plates. It is therefore necessary, by ^j guides 19 to the line 17 a train to 17A

Claims (5)

to be provided. If these bushings 19 are mechanically related to the cable runs, they can also serve to mechanically fasten the cable runs. For this purpose, it is expedient to use perforated insulating material for the connection plates 15, 16, the hole spacing of which is designed so that they match the connections of the modules. Such perforated panels have already been proposed for component panels and can be manufactured by machine. The connection plates produced by one of the methods described are placed on two opposite surfaces of the modules, a sufficiently strong mechanical connection being produced by the connection connections between the individual modules and the cable runs. For spatially very narrow components, such as resistors or small capacitors, the use of the modules described so far would also lead to very narrow modules. It would also be difficult to accommodate the necessary connection points. To avoid this, you can use modules for such narrow components as shown in FIG. 6 and 7 are shown. So here are two divided modules with different components - for example capacitor 2 or 14 and resistor 6 or 8 in FIG. 6 or 7 - in a cross-sectional plane. It does not need to be particularly pointed out that the connection points of the modules can be placed as required in such a way that they can be connected either to the associated cable runs of both connection plates 15 and 16 or only to a specific 15 or 16. For this purpose, the modules are bevelled at the square edges and the connection points are placed in these bevels, as shown in FIG. 5 to 7 is shown. This also results in larger bending radii for the connecting wires. In Fig. 8 it is now shown how the wiring of an amplifier made up of such modules according to the circuit diagram of FIG. 1 can be divided into the individual cable runs 17 ″ to 17 d on connection plate 15 and 17 b to 17 h on connection plate 16. A more detailed representation is probably in view of the F i g. 3 to 7 no longer necessary. The inputs and outputs of the amplifier arrangement are on the two wiring boards W1 and W3. These plates are in the form of a module, but do not contain any components, but only serve to feed the connection points to the wiring. This is shown for Wl in FIG. 5. The connections for the inputs and outputs are on the sides of the wiring boards that are not in contact with the connection boards. Further connections can also be provided on the same sides of the modules, with which control elements such as attenuation controllers can be wired. Coolants, such as cooling plates, etc., can also be provided on these surfaces. The only purpose of the wiring board W 2 is to enable connections to be made between individual cable runs on opposite connection boards. This allows greater flexibility, particularly in the case of larger units, so that the space required can also be accepted. Patent claims: 1. Arrangement for the construction of electronic assemblies, especially those of telecommunications technology, by means of only a single component containing units which have a substantially square base, these units with their base side side by side or stacked and connected by lateral end plates, thereby characterized in that the individual in their basic shape, as known per se, cuboid units (1 to 14} also have different dimensions in their base area, that from the dimensions of the largest component to be accommodated, a base unit (1, 10) with an essentially square base area with beveled corners is formed that the connections (18) are arranged on the side surfaces corresponding to these bevels and that sub-units (2 to 9, 11 to 14) from this base unit depending on the size of the other components by division parallel to the base and / or d en side surfaces of the cuboid is made in such a way that the resulting sub-units (2 to 9, 11 to 14) have at least one of the beveled edges of the base of the base unit (1, 10) for the connections (18) and the division factor is chosen so that the sub-units (2 to 9, 11 to 14) can be assembled like a building block to form the base unit (1, 10) , and that the wiring of the assembly built up by building block-like layering of the units (1 to 14) by connecting the connections (18) on the units (1 to 14) with cable runs (17 a to 17 h) arranged in a manner known per se on the end plates (15, 16) . 2. Arrangement according to claim 1, characterized in that the layered modules are held by means of two known connection plates (15, 16) adjoining opposite sides of the modules, that the lines (17 " to 17 h) on the modules adjacent inside of the connection plates (15, 16) are applied, but that the connection with the module connections (18) is made by connection points (19) extending to the outside. 3. Arrangement according to claim 2, characterized in that the continuous connection points (19 ) serve at the same time for fastening the lines (17 a to 17 h) located on the inside of the connection plates (15, 16). 4. Arrangement according to claim 2 and 3, characterized in that perforated plates are used as connection plates (15, 16} , the grid of which corresponds to the position of the module connections (18) . 5. Arrangement according to claim 1 and one or more of the subordinate claims, characterized in that wiring plates {Wl to W 3) are provided which have the geometric shape of the modules through which the necessary connections between the connection plates (15,16) are made and not at theirs