DE1465709A1 - Printed circuit board and process for its manufacture - Google Patents

Description

H.T. Prior-J.A »Leno 29-37 Patent attorney 1465709

Stuttgart 1 ' mmmmmmtm ^ mmmmmmmmim

P.O. Box 5U1 ■ ι

I Dr. Expl. J

"lS] i / fteg.2763

",egg

iter board and process for its production »

_2. ) ".reit-teU" ron ladernrdnuns "^
■ ux to indicate by truncating ^ ^ uidior..a
_tz v ,. by punching on thin sheet metal. _{£ f latten} and

_{IflolierBto £ Me} iteppa3ceteB to compact this Isoliero ^ xx

Unit. _ _{± d Ie} iter arrangements

anckl'jehern like that, «i ^ &
Bodies are interrupted.

1963 909821/0250

6.) Cutting off unwanted ends b.:w _{0 of} an edge strip intended to facilitate the process.

While this method is advantageous for elongated printed circuit boards can be produced, offers a modification of the process for circular or circular ring-shaped circuit boards certain Advantages. According to the invention, there is the modified method in the following process steps:

1.) Provision of insulation panels of the desired dimensions and outline for punching out of panel-shaped! _O material or pressing or spraying.

2.) Provision of conductor arrangements, which have longitudinal and transverse webs, by cutting from tape-shaped perforated material J2W. by punching: .ais thin sheet metal, these conductor arrangements Have edge strips for mechanical consolidation and the desired cable runs by punching the longitudinal and transverse Bars are vairden at given points.

3.) Provision of a pressed or injection-molded standard part to accommodate the conductor arrangements and the insulating material plates, whereby the R'.aid ζτιν fixation of the connection ends is nuteiiförnige Ausparuiig en on we »

4 «) Alternating insertion of conductor arrangements and insulating material plates in this porous part ₀

5 «) Closing the i'omi part by means of a cover plate, pressing in, Inject or pour.

6e.) Cut off the border and send unwanted ana cnlus.

The invention will now be described in detail using the figures will »show:

Fig »1.oo1b schemr.itiucli an example .evr the ^ training of the in insulating material embedded conductor of an inventive Circuit board;

Pig.2 u _o 2a an example for the practical realization of such a circuit board with z \ rel 3>: onfi; ur <■ · ■, ti ons gle ionen conductor

i ^{; i} ig _e 3 a circuit board with a uiafiuigricheren conductor arrangement;

1 ' ¹ I ^ β4 a Sc.initt through this circuit board mid

Fig. 5 the 'ueitcranordiiua'; aelbüt.

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shows a circuit diagram of a conventional, known per se bistable circuit, with the construction of this circuit using an inventive printed circuit board is shown as e.g. <> in

.8 is shown as a circular circuit board. Fig. 9 shows a top and side view of an insulating ring as it is used for the construction of such a printed circuit board.

can find application, whereas in Fig. 10 the plan view of this circular ring-shaped according to the invention PCB and in

11, the side view of which is shown.

Fig. 12 and 13 show in top and side views further construction options for electronic arrangements with the help of the invention dung sgeinas sen printed circuit boards.

FIG. 1 now shows part of a circuit board according to the invention with two conductor arrangements 1 and 2 _{e of the} same configuration. Here, the first conductor arrangement is drawn out and the second is shown in dashed lines. The two conductor arrangements are embedded in insulating material, for example by being placed between strips of insulating material. Such a conductor arrangement, in which two conductor arrangements are embedded in insulating material, is easy to mass-produce.

TJM such conductor strips can now use for wiring the components of a Sciialtungsanordnung, holes are provided in the printed circuit board, such as are indicated in Figure 1 _e as small rings. 4 The number and arrangement of the holes depends on the wiring task at hand.

If, therefore, an electrical circuit arrangement is to be wired to one or more of the circuit boards according to the invention, the number and length of the holes must be determined for this purpose, which are necessary to achieve the desired connections. "It can therefore Standardlän: en such conductor strips used ground-v., the desired conductor structures aie obtained by punching, can be done with the punching · * Hand or by means of a program-controlled multi-punch or Jioiinaaschine.

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Fig.1a now shows a piece of a circuit board in which six holes, represented by six small circles, attached are »In Fig <> 1b the resulting cable runs are shown

If a large number of conductor arrangements are to be accommodated in a printed circuit board, this number is limited by the fact that holes intended for one conductor arrangement must not damage other conductor arrangements when machining the standard plate -it v / ground that nan forms the holes as blind holes, the depth of which is so obsessed that only the desired conductor arrangement is interrupted.

Such blind holes can be made in an additional operation after punching closed again with insulating material. End of the ladder. electrically separated from the rest of the conductor arrangement by punching are cut off or old support points for such Components that are not directly connected to the conductor tracks, be used.

In Pig, 2 a circuit board with two conductor arrangements 7 and B embedded in insulating material is wired. The two Leitsranordnungen have the same configuration, are ^a: he ge by 180 ° to each other and turned-up faces aixoh laterally. ; ene "uiander offset from each other isolated over each" conductor arrangement is β in the drawing, the "ü"^ber.-:; ichtlichkeit shown in phantom sake "The five circles indicate the points at which the conductor arrangement ene were interrupted by punching, the wt aiiLicnten To receive cables «

In FIG. 2a, similar to FIG . 1b, the · ::. arch the locüen ent α ta: the same cable ducts are shown. The undressed lei do ·; ε trains i 'mid

10 belong to the conductor arrangement 7 and the dashed Leitiu :. s: 3 ^: i / ;; e

11 and 12 for conductor arrangement 8, In Pi ;; »2 ?, are nocii different by Pig.1b "the boundary lines of the plastic embedding are drawn in.

T? Ig. 2 and 2a show ei: ai _t ; e of the possibilities how ii.it. A single printed circuit board is a four-wire conductor structure consisting of the individual

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Beams of ladder arrangements can be obtained «This causes that each ladder arrangement has two longitudinal balls, which is a row The ends of these longitudinal balls opened up additional possibilities However, the hanging crossbars limit the distance between two crossbars of a ladder arrangement to twice the minimum The two ladder arrangements stood between two such neighboring linden trees

.3 shows a somewhat more extensive embodiment of an invention jamässen circuit board, which in principle is similar to that according to Pig., 2 is built up .. This gives the possibility of a greater variety given the line design, although more extensive punching must be accepted. The basic pattern the conductor arrangement is basically the same as in Pig.2, however v: iron both conductor arrangements on both long sides of the circuit board common marginal strips on «, these are clearly in Pig.4 recognizable in the cut. In Pig. 3 the points at which the line arrangements can be interrupted by punching are through Circles 20 indicated. Some of these circles also indicate interruptions in the edge strip that is outside the insulating material is located on. As a result of these additional interruption possibilities, the inadequacies of the arrangement are largely re-grounded Pig ο 2 eliminated, b, ei of the ends in two separate layers without The possibility of connection / may lie in the manufacturing process.

To make it easier to understand, Pig »5 has one of the in the printed circuit boards shown individually according to Pig. 3 and 4. It can be seen from this that there are lap, en 22 on the edge strips 21, which are in the middle between two ladder rungs 23 are attached.

From Pig. 3 it can now also be seen that both conductor arrangements of a printed circuit board have the same configuration, their surfaces however, rotated by 180 and offset by a rung-lobe distance from one another, lie one on top of the other.

The circuit boards described can now be used to miniaturize structural units built up by the fact that between two printed circuit boards running parallel to one another with their surfaces, the components are arranged, the connections of which at suitable ends of the

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Circuit boards are connected to / earthed »This results in cuboid units. Such spatial arrangements have been described in detail in older applications and are also inherent _e \ IENN such a component connecting wires has as two "Bo at a resistance of Pail, a connecting wire can with a printed circuit board, the other to the other! connected ο

In the case of larger components, e.g. transformers, these can be such a cuboidal structural unit must be v / grounded "

As conductor arrangements between the layers of insulating material can Wire grids can also be used, the longitudinal and transverse wires of which are connected to one another in a suitable form, e.g. by welding However, as shown, tape material can also be used for this purpose or the desired shape can be punched out of solid material »

So far, rectangular printed circuit boards have been used to build block-shaped ones Units described «In many cases, other forms of vo. Partial ,, Take a circular printed circuit board as an example. The considerations for using the technology described for circular printed circuit boards should therefore be discussed will.

In FIG. 6 a circuit arrangement is now shown, its structure advantageous with semicircular or circular circuit boards can be miniaturized. The figure represents a common bistable circuit so well known that its function need not be further described. Figo7 now shows how this arrangement can be arranged in a semicircle, so that it can be constructed using a semicircular printed circuit board can be carried out according to the construction technique described »

. In Fig.8 is a disc 30 made of thin sheet metal, for example wise to see brass or copper. This disc has rows of holes with two different hole shapes. The holes 31 of the one hole shape are relatively narrow and form the holes of soldering lugs for the components, if the outer and inner Bands 33 and 34 of the disc are cut. The Lücner 32

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,. of the other holes are larger and "form those to those in Fig." 1 described ladder arrangements equivalent 'circle form

the desired electrical conductor structure is the same as with the previous ones! Jeiter arrangements obtained by punching the central web 36 or the radial webs. "The parts that remain steep then form the desired conductor structure. Each disk can have three or three strict conductors. The perforation of the webs can be done automatically by rotating the disk under a multi-hole rod controlled by a perforated card f required '.r a circuit board a plurality of discs solc.uer Thus nehrere such shown in Pi3ο8 and by punching with the desired ^Leitungsz. ibereinandergelegt strength provided bc.eiben with the interposition of insulating material and then placed in an imaged in Pig.9 insulating ring Gr This ring has groove-shaped depressions and crenellated elevations and is closed off by a cover plate that is flush with the elevations.

in the case in which two or more circular or semicircular disks are inserted into such a circuit board, the connection ends can be arranged offset in a manner similar to that of the straight circuit boards.

A conductor arrangement inserted into an insulating ring n./.ch Pig «9 came ;, uch uurcli pressing in, injecting or pouring are covered.

Pig.10 now shows υine in the layout of the previously described circuit board i'.uniform semicircular shape. Both with circular and Even with .u-.lb-circular printed circuit boards, the components are on both lines of connections or only on one, z. 3. the outer row.

In the figure described, the connection ends of the outer and inner row are now shown in such a way - that they have the same width measured in the vertical angle. It can be advantageous to measure the ends of the inner row, measured i: .i, to make the angular measure narrower gULrI;:,. Iton, um .'r .. freeze intervals «v, ^r i: .- '. Ij ..'. E "'i to eiVialten them.

909821/0250 _BAD original

In Fig. 11 it is now shown how between two circular or hall) - ·., circular circuit boards the components can be arranged Comprehensive circuit arrangements can now be lined up one above the other Such assemblies can be implemented, v / ie is indicated by the dashed circuit boards 40 and 4-1. The individual building r groups can be set by spacer bolts in holes 42 and 43 of the pig » 10 are connected to each other »

Figures 12 and 13 show another possible application of the Circuit boards according to the invention «Two circular circuit boards 44 and 45 are arranged at a relatively large distance from one another. They are used to mechanically close the cuboid assemblies with straight printed circuit boards between them hold and connect electrically »In Fig.12 there are six, in Fig.13 three such assemblies 46 are shown. Ui; i is the component density it is advisable to increase the 3au;: rup ;; en not cuboid, but in the form of an irapezoid, as with the assemblies 46 shown in Fig.12.

It probably does not need to be particularly emphasized that eclcjie printed circuit boards also other outlines v / ie circles, circular rings or segments or have rectangles'.

All of these described with the invention circuit boards built-up units can now even with a fixed .. Envelopes surround the

Me using this printed circuit boards obtained initiating './eisen a lcou-X> File structure and good mechanical Festi _L; ouf CEITs. In addition, they have - also a low weight, according to Dr.ss their use is particularly advantageous in cases where this is an indispensable requirement in air traffic and rocket technology.

10 Pa t ent ans ρ rii ch e

7 blο drawings, 13 fig,

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Claims (6)

ISE / Reg. 2763 _ y _ claims 1.) Process for the production of printed circuit boards, in which on a Isolierstoffplatte one or more individual cable runs that are attached to the rope or completely embedded in the insulating material and soldered connections for these cable runs are provided, characterized by the following Process steps: 1.) Provision of insulating plates (3) of desired dimensions by cutting or punching from plate-shaped material or by pressing or spraying in the desired manner Size. 2.) Provision of conductor arrangements (7, 8), the longitudinal (21) and have transverse webs (23) by cutting from strip-shaped hole-forming material or by punching out of thin sheet metal » 3o) Layering of insulating material panels one on top of the other (3) and conductor arrangements (7, 8), the outer layers being made of insulating material and the longitudinal (21) and / or transverse webs (23) stacked conductor arrangements against each other are offset or overlap and the ends of the webs protrude from the insulating material as connections » 4o) Solidifying this insulating conductor package into a compact one Unit. 5o) production of the desired cable runs in the conductor arrangements (7, 8) by punching or drilling through holes or drilling blind holes in such a way that the webs as a result, interrupted / grounded at specified points » 6.) Cutting off unwanted ends or one to facilitate production provided verge. 2.) Modification of the method according to claim 1 characterized duroh the following process steps: - 10- 909821/02 SO BATH ISEAeg. 2763-10- '■ H65709 1.) Provide ύοώ. Insulating material plates (3) of the desired dimensions and crack line .durcli punching cus plate-shaped! Material bsw _e pressing or spraying. Comprise 2) providing Leiteranordnmagen (7,3,30), the longitudinal (c and transverse webs (23) by cutting out strip-shaped hole-forming material or _o by stamping from thin sheet metal, said conductor arrangements (7,8,30) Verge were (33,54) have for mechanical strengthening and the gewii.nsc.aten line trains by punching of the longitudinal and Querster cn predetermined locations obtained <> j ?.) Provision of a pressed or injection-molded standard part (G-) zxxv recording of the conductor arrangements (7,3,30) and the Isc lierstoffplatten (3), voboi the edge for fixing the connection ends has grooved recesses. 4o) Yieclisel-sided insertion of ladder arrangements (7,8,30) un Insulating panels in this molded part (G-). 5 ») Closure of the Pormteilea (G-) by a cover plate, Ein pressing, injecting or pouring. β ») cutting off the edge strip (33,34) - and undesirable Connection endη " 3 ») printed circuit board according to the method according to claim 1, thereby gel he shows that the ladder arrangements have the same configuration however, their surfaces are rotated by 180 ° against each other, one above the other. 4.) Iieiterplatte according to the method according to Alis] a "uch 1, thereby keii shows that the transverse webs of the individual conductor arrangements (7, 8) are offset from one another. 5.) Circuit board according to the method according to claim 1, characterized in that the conductor arrangements (7 ¹ , 8) consist of wire mesh, in which the crossing points of the wires are conductively connected to one another, 6 «) printed circuit board according to the method iuich claim 1 and one or several of claims 3o »e5, characterized in that the Through and blind holes to produce the desired Leitt shape in an additional work step again with insulating material. are filled out, 909821 / 02SÖ BATH ORIGINAL Ό) Printed circuit board according to the method according to claim. 1 and one or several of the following claims 3 «·« 6, characterized in that for the construction of miniaturized structural units the structural elements between -two arranged with their faces parallel Printed circuit boards are arranged and their connecting wires with connection ends both circuit boards are connected » 3o) printed circuit board: · ι «ch claim 7», characterized in that the structural unit constructed with z \ re ± printed circuit boards is built into a housing or is injected or cast in. 3o) printed circuit board according to the method according to claim 2, characterized in that that the conductor arrangements (30) preferably have the shape of a circular ring or circular ring segment " Oo) circuit board according to claim 9 »characterized in that between two circular circuit boards made of two rectangular Printed circuit boards formed units according to claim 7 switched are ο 909821/0250 _B M> OB \ G \ NW-