DE3222178A1 - Electrically insulating substrate with metallic conductors - Google Patents

Abstract

For an electrically insulating substrate with metallic conductors applied to it by the hot-pressing process, the invention proposes that component mountings or similar connecting elements are formed by casting, deep drawing, extruding or foaming at the same time as the substrate component, which consists of thermoplastic material. The invention also makes it possible to produce three-dimensionally shaped substrate components which can also act as functional components, and to produce modules comprising components which are integrated and electrically connected to one another in one operation.

Description

Electrically insulating support with metallic conductors

The invention relates to an electrically insulating carrier thermoplastic material with metallic conductors, which are hot stamped are upset.

So-called printed ones have been used in the electronics industry for around 25 years Circuits are used in which the wiring is made of thin, insulating material applied metal strip. These metal strips are after a right elaborate process etched out of a film laminated on a flat plate.

In addition, there have been methods of production for a long time of such circuit boards known in which the metallic conductors through Hot stamping can be applied (see e.g. DE-PS 808 052 and DE-GMS 1 943 453).

These methods also result in flat printed circuit boards which one or both sides are used for wiring the electrical components required conductor tracks are provided.

True, the technology of printed circuit boards has become one of these Significant rationalization of the manufacturing of electrical devices resulted, nevertheless Ultimately, the circuit boards only replace conventional wiring.

The present invention is based on the object, proceeding from using this technique to create a carrier with metallic conductors, which is not only the wiring but also the assembly of the electrical components as well the mechanical assemblies is further simplified and rationalized.

This object is achieved according to the basic concept of the present invention in that in one piece with the generically presupposed carrier component mountings or connecting elements are provided, which together in a single operation with the carrier component in a casting process, e.g. by pouring, injection molding or Die-casting, or a deep-drawing, extrusion or foaming process are produced.

Although it is known, circuit boards of the conventional type with through holes to be provided, in which the connecting wires of electrical components for contacting inserted with dell conductor bales and soldered there. These roll rinks, the can also be addressed in the broadest sense as component names but always afterwards, so after making the conductor tracks, introduced, which inevitably complicates the manufacturing process.

According to the proposal of the invention, these recordings are simultaneous made with the carrier, which is subsequently hot stamped with the metallic Ladders is provided.

Except for the well-known mounting holes, which are preferably for ease of use the equipping are funnel-shaped or countersunk, are used after a Another proposal of the invention rigid ribs, webs, pins, columns or consoles the component recording.

The component mountings or connections can, however, also be resilient Be arms, webs, or tongues.

It is also possible to provide the carrier with depressions from the start or to provide breakthroughs which wholly or partially correspond to the contour of the to be recorded Components correspond.

The components are a further consistent application of this proposal completely embedded in the carrier component, with their connecting conductors at least up to Reach on one side of the carrier component.

Insofar as these components are electrical components, they are Connecting wires with the metallic ones located at least on one side of the carrier Ladders connected. Electrical components can be passive elements such as resistors, capacitors, inductors or active elements such as diodes, Transistors or fully integrated circuits, so-called ICs.

Electronic converters such as piezoelectric Components are embedded. Since polyvinylidene fluoride (PVDF) has piezo properties, The piezoelectric transducer can also be used as part of the thermoplastic carrier PVDF can also be injected. The polarity required for this in the electric field can be done either during or after spraying. This suggestion is e.g. in the production of microphones, buzzers, wireless search devices, telephone receivers, Hearing aids or even inkjet printers can be used. The components can be more rational Way e.g.

overmoulded, whereupon the end product consisting of a massive block can be provided with hot-stamped electrical conductors on the outside. The advantages are not just simple, inexpensive production, but also in an optimal protection through hermetic Encapsulation opposite external influences of surrounding gases or liquids. After all, one is totally New shape possible with ergonomic adaptation of the components.

It is also possible according to a further proposal of the invention, light-generating Components, i.e. electrical light sources, also in the form of liquid crystal displays (LCD), to be embedded in the component, whereby the light via an optical connection e.g., embedded light guides and lens systems, preferably to at least one Also embedded indicators provided on the outside of the component or Like. Can be performed.

For carriers made of transparent and thermoplastic material the wearer can take over the function of the light guide himself. The indicators can also be caused by unevenness of the surface of the transparent carrier material, such as notches, are formed from which the light is preferably exploited the floodlight effect can escape.

A pattern can be applied to the embedded, light-generating components or display signs can also be generated directly and by means of embedded light guides or other optical systems on the outside of the component, e.g. by means of a Screen can be made visible.

Conventional processing methods are suitable for embedding thermoplastic plastics, especially casting and foaming processes.

An additional simplification and rationalization of production can be achieved according to a further proposal of the invention, according to which on the Carrier component in the hot stamping process several layers of conductor tracks on top of each other are attached, with insulating layers being provided between the tracks are. These insulating layers can preferably be from the hot-melt adhesive of the stamping foil be educated yourself. This structure eliminates the need to use more expensive ones if necessary plated-through conductors.

The possible uses of the known printed circuit boards were previously limited by the fact that in these the conductor tracks only in one or can be arranged in mutually parallel planes.

According to the proposal according to the invention, the carrier components can be three-dimensional be deformed and at the same time represent a functional part.

Thus, the carrier component itself can be a housing, a machine part or a covering part form. For example, the inside of a dashboard cover can be the carrier for the electrical conductors applied using the hot stamping process.

This results in a multitude of possible applications, from which only a few are named and particularly protected.

After a further suggestion, it is possible, for example, to switch the ladder to Formation of a radio or television antenna on a three-dimensionally deformed one To attach support component.

This even makes it possible to watch TV via satellite produce suitable parabolic antennas and reflectors in an inexpensive manner.

Furthermore, the carrier component can be a socket for receiving electrical Components, preferably a clamp or screw socket for lamps, e.g. Incandescent, glow or gas discharge lamps, connection contacts and tongues for electrical and mechanical connection or the like. More.

As a result, the production process is streamlined at the same time saved expensive colored material.

The conventional busbars for electrical consumers, so-called Light rails, for example, or rails for powering vehicle toys, can be designed in a manner according to the invention. Installation material can also be used such as connecting terminals for electric batteries or accumulators.

According to the proposal according to the invention, it is even possible to be flexible To use support components that also represent functional components. Provides For example, if you have mats or carpets with metallic conductors, they can be shielded Manufacture carpets like these often in rooms with highly sensitive electrical Devices are required.

Entire resistance groups, for example for resistance heating, can also be used. be attached to rigid or flexible support components. This results in a further rationalization also for the prefabricated house production, because for example the entire house electrical system can be combined with wall elements.

Some proposals according to the invention are given below on the basis of exemplary embodiments explained, which are shown schematically in the drawings. It show figure 1 perspective view of a carrier plate according to a first embodiment of the invention, Figure 2 is a perspective view of a carrier plate according to a second embodiment of the invention, Figure 3 perspective view of a Carrier plate with applied conductor elements and FIG. 4 section through a carrier plate in the area of two different receiving bores, FIG. 5, perspective illustration a carrier component with embedded electrical components, figure 6 perspective illustration of a carrier component with embedded components and conductor tracks arranged in two layers, FIG. 7 perspective illustration of two Carrier components to be coupled to one another, FIG. 8 cross section through a carrier component with pushed-on contact tongues of a second carrier component, FIG. 9 section by two carrier components, which are connected to one another by means of a contact bridge are, Figure 10 plan view of the arrangement according to Figure 9 and Figure 11 section of a Carrier component with the embedded components of an inkjet printer.

Figures 1 and 2 show the support components 10 and 20 before application the conductor in the hot stamping process, while FIG. 3 is a simple carrier plate 30 illustrated without special recording, but with conductors applied by hot stamping.

The partial section according to FIG. 4 is used for illustration purposes only of mounting holes.

As stated in the introduction, the invention easily allows to provide three-dimensional shaped ones instead of flat carrier plates.

The carrier plates shown in the drawings are preferred Made from a thermoplastic material in an injection molding process. With this one According to the exemplary embodiment according to FIG. 1, manufacturing processes are angled webs 11 or pins 12 for fixing electrical or mechanical components, bores 13 for inserting component lead wires and recesses 14 for insertion of components intended from the outset The carrier material used is permitted in addition, the simultaneous production of resilient recordings, e.g. at 2 resilient arms 21 or locking tongues 27 with locking lugs 27a, as well as columns 22, the upper end of which is provided with a threaded hole 22a is provided with a slot 22b for generating a spring effect. One piece with the support plate 20 is also a terminal block in this embodiment 24 with insertion holes 25, in which connecting wires or contacts with the help of Screws 26 can be set, provided on the top and bottom of the Carrier plates are attached to electrical conductors using the hot stamping process, as is illustrated schematically with FIG. 3. Be in a manner known per se Conductor 31 with perforated solder eyes 32 or conductor 36, which is also called a sheet resistor can be designed with e.g. unperforated eyes 37 on the top of the carrier plate or -bottom attached. Located within the perforated eye 32 themselves an inner contact ring 33, which is created in that the web 34 with the uncoated Intermediate ring 35 peeled off after applying the conductive pattern in the hot stamping process will.

As already mentioned at the beginning, it is true with conventional printed circuit boards known to provide bores for receiving component lead wires. These holes are in the carrier component according to the invention, for example 40 according to FIG provided so that they can be funnel-shaped (see item 41) or countersunk at no extra cost (see section 42) can be produced. This design facilitates the automatic Loading of circuit boards considerably.

In the further exemplary embodiments according to FIGS the component mountings within the solid support component 50 or 60. The components e.g. resistors 51 or 61, light-emitting diodes 52 or full integrated circuits, so-called IC, are used in the manufacture of the component, which is symbolized in FIGS. 5 and 6 as a solid printed circuit board 50 and 60, respectively, completely embedded, e.g. injected, poured or foamed.

As a result, the component is not only secured against vibration in its position but with suitable materials it is hermetically sealed against dust and water protected encapsulated.

The connecting wires 51a, 52a, 53a and 61a of the aforementioned electrical Components are bent and guided in such a way that they at least have one side the components 50 and 60 range and there with the subsequent hot stamping process angry Conductor tracks 54 with soldering eyes 55 or in the exemplary embodiment according to FIG. 6 62 and 63 are connected, preferably soldered. In the embodiment according to FIG. 6, the conductor tracks 62 and 63 are arranged in different planes and electrically isolated from one another by means of a separating layer 64. This insulating layer 64 can be applied in one operation with the conductor tracks 63 using the hot stamping process if they are formed by a hot-melt adhesive required for the hot stamping process will. This process is detailed in the earlier German patent application P 31 16 078.6 explained.

In Figure 5 is finally explained by way of example how a light-generating Element, here a light emitting diode 52, can also be embedded. This is arranged so that its light exit side 52b up to a lateral boundary surface of the carrier component 50 is sufficient. If such an arrangement is not possible, the light from a light source located in the center of the carrier component 50 in a manner not shown via likewise embedded light guides known per se can be directed to any desired outer surface of the component.

With the figures 7 to 10 are different possibilities for the production electrical and mechanical connections between two designed according to the invention Beam components illustrated.

In the embodiment of Figure 7 are at least on the one side of the plate-shaped support component 70 is designed in the form of sliding contacts Contact conductor 72.

led to the edge. The second component 71 has in this area Pairs of laterally projecting contact tongues 73, which when put together of the components 70 and 71 rest on the contact conductor ends 72 and thereby one make electrical contact.

A modification of the arrangement according to FIG. 7 is shown in FIG. Instead of thin contact tongues 73, there are somewhat more massive contact fingers 82 in pairs provided which have ball heads 83 at their ends. To those facing each other The fingers 82 are coated with contact conductors 84 on surfaces. With these lie they on the top of the contact conductors 81 provided on the carrier plate 80 on. The spherical design of the contact surfaces enables a pivoting movement the finger 82 opposite the plate-shaped carrier component 80.

In the further exemplary embodiment according to FIG. 9, this property is still improved. For connecting two plate-shaped support components 90 and 91, which in turn are provided with contact conductors 92 and 93 on both sides, is a two-part Contact bridge 94 is provided. Here, too, the contact bridge halves are with each other facing Ball heads 95 and contact conductors 96 are provided. Under The coated ball heads lie under the action of the centrally arranged tension spring 97 95 on the contact surfaces of the conductors 92 and 93. This creates a hinge-like Connection between two mutually pivotable and rotatable within certain limits Carrier components created.

It goes without saying that the representations according to FIGS. 7 to 10 are only schematic are to be understood. Thus, the implementation continues according to the proposals according to FIG. 7 to 10 also precedes a lock with known snap connections or notches.

That the present invention enables the manufacture of whole integrated Allows assemblies, should finally be based on the embodiment according to FIG 11 should be made clear.

In this exemplary embodiment, all are in a carrier component 100 Integrated components and connecting elements for an inkjet printer. So shows the carrier component 100 has a recess 101 into which a closable Filler neck 102 liquid ink 103 can be filled.

The ink container 101 is connected to the baffle tube via an ink duct 104 106 connected. It flows into this with a Nozzle 105. The ink delivery A pump 108 is used and the ink is accelerated by a piezoelectric accelerator 109. At the deflection tube 106, which is in the exit area in the form of a funnel 107 expanded, there are electrodes or deflector plates 110, 110 'and 111, which are different Have functions. The electrode 109 is controlled in such a way that from the still uniform Ink stream 103 'after leaving nozzle 105 a drop-shaped ink jet 103 " arises. One generated by the character generator 112 is located on the deflection plate 110 ' Voltage for horizontal beam deflection, while the plates 111 in corresponding Serve way of vertical beam deflection.

All the components described are cast into the carrier plate 100, injected or foamed. The generally designated 116 electrical Connections are led out to the outside of the carrier plate and by means of Conductor tracks produced by the hot stamping process are electrically connected.

The component generally designated 100 thus almost forms a complete inkjet printer whose jet 103 '' from one of the supply roll 113 on the transport roller 114 conveyed paper tape 115 can be caught.

Assemblies of different structures and different purposes can be produced in a rational manner using the proposals according to the invention will.

Figure legend 10 Beams 11 Angle bars 12 Pins 13 Holes 14 Breakthroughs 20 support plate 21 resilient arms for component holder 22 column 22a threaded hole 22b Slot 23 Hole 24 Terminal strip 25 Insertion holes 26 Locking screws 27 locking tongues 27a locking lug 30 ~ carrier plate 31 connecting conductor 32 perforated eyes 33 Inner ring 34 Bar 35 Intermediate ring 36 Sheet resistance 37 uneven eyes 40 Circuit board 41 funnel-shaped, conical bore 42 countersunk bore 50 support component 51 Resistor 51a connecting wires 52 light-emitting diodes 52a connecting wires 52b light exit side 53 Integrated circuits (IC) 53a Connection wires 54 Connection conductors 55 Connection eyes 60 carrier component 61 resistors 61a connecting wires 62 connecting conductors in the first Level 63 connecting conductor in second level 64 insulating separating layer 70, 71 carrier components 72 contact conductors 73 contact tongues 80 carrier components 81 contact conductors 82 contact fingers 83 spherical head 84 contact conductor 90, 91 carrier components 92, 93 contact conductor 94 contact bridge 95 ball heads 96 contact conductor 97 spring 100 carrier component 101 ink container 102 Filler neck 103 Stored ink 103 'Ink flow 103' 'Ink drop 104 Ink feed 105 nozzle 106 deflector tube 107 exit funnel 108 pump 109 piezoelectric Accelerator 110 110 ') baffles 111 112 character generator 113, 114 transport and supply rolls 115 paper tape 116 electrical conductors

Claims (26)

PATENT CLAIMS 1. Electrically insulating thermoplastic carrier Material with metallic conductors applied by hot stamping, marked due to component mountings that are one-piece with the carrier component <10,20,30,40,50,60,100) (11 to 14, 21 to 23, 41,42) and / or connecting elements (24,25,27), which in one operation together with the support component (10,20,30,40,50,60,100) in the casting, Deep drawing, extrusion or foaming processes are produced. 2. Carrier according to claim 1, characterized in that the component holder rigid ribs, webs (11), pins (12), columns (22) or consoles. 3. Carrier according to claim 1, characterized in that the component mountings or connecting elements are resilient arms (21), webs or tongues (27). 4. Carrier according to claim 1, characterized in that the recordings the contour of the components at least partially corresponding depressions or Breakthroughs (13, 14,23,41,42) are. 5. Carrier according to claim 4, characterized in that the openings countersunk in a manner known per se to accommodate connecting wires or funnel-shaped bores (41, 42) are. 6. Carrier according to claim 1, characterized in that the components (51,52,53,61 101,108-112) are completely embedded in the support component (50,60,100) and their connecting conductors (51a, 52a, 53a, 61a; 102,104-107 and 116) at least up to one side of the carrier is enough. 7. Carrier according to claim 6, characterized by embedded electrical Components (51,52,53,61,108-112), their connecting wires (51a, 52a, 53a, 61a, 116) with the metallic conductors (54, 55; 62,63) are connected. 8. A carrier according to claim 7, characterized in that the electrical Components are electroacoustic transducers, preferably piezoelectric transducers. 9. Carrier according to claim 8, characterized in that the piezoelectric Transducer Part of the carrier made of thermoplastic polyvinylidene fluoride (PVDF) are, which during or after the production in the electric field for the piezo effect required polarity. 10. Carrier according to claim 6, characterized by embedded light or electroluminescence generating components or components with controllable Showcase their emission via embedded light guides to likewise embedded ones Indicator or the like. Is performed. 11. Carrier according to claim 10, characterized in that the light guide are an integral part of the components themselves. 12. Carrier according to claim 10 or 11, characterized in that the Indicators provided on an outside of the support component or by surface unevenness are formed. 13. Carrier according to claim 10, 11 or 12, characterized in that Indicators arranged within the carrier component can be queried via light guides are. 14. Carrier according to one of claims l to 8, characterized in that that on the carrier component (60) several layers of conductor tracks (72,63) one above the other are arranged, between which electrically insulating layers (64) are provided are, which are preferably formed by the hot melt adhesive of the stamping foil. 15. Carrier according to one of claims 1 to 14, characterized in that that on the edge of the carrier components (70, 71, -80, 96) electrical contacts (72, 81, 92, 93) or contact tongues (73,83) are provided which are assigned to one another so that when putting together two similar or corresponding components (70,71; 80) an electrical and possibly mechanical connection is created. 16. Carrier according to one of claims 1 to 14, characterized in that that on the edge and on the outside of the support components (90) electrical contacts, preferably sliding contacts (92) are provided, which by means of movable contact bridges (94-97) articulated with corresponding electrical contacts (93) of other carrier components are connectable. 17. Carrier according to claim 16, characterized in that the contact bridge (94-97) with spherical contact heads (95) under spring pressure (97) on the sliding contacts rests. 18. Carrier according to one of claims 1 to 17, characterized in that that the carrier component is three-dimensionally deformed and at the same time a functional part represents. 19. Carrier according to claim 18, characterized in that the carrier component to a housing, machine or cladding part, e.g. a dashboard cladding or a wall element for house construction, is deformed. 20. Carrier according to claim 18, characterized by the use as Antenna preferably with a parabolic screen. 21. A carrier according to claim 18, characterized in that the carrier component a socket for holding electrical components, preferably a clamping or screw socket for lamps. 22. Carrier according to claim 18, characterized in that the carrier component forms a terminal for connecting electrical batteries or accumulators. 23. A carrier according to claim 18, characterized in that the carrier component as a busbar for electrical consumers, e.g. lighting fixtures, toys Or the like. Is formed. 24. Carrier according to one of claims 1 to 17, characterized in that that the carrier component is a flexible functional component. 25. Carrier according to claim 24, characterized in that the carrier component is designed as a mat or carpet and the conductor has an electrical screen or form an electrical resistor, e.g. for resistance heating. 26. Carrier according to claims 6 to 9, characterized in that to form an inkjet printer in the carrier component (100) cavities (101) and channels (104-107) for storing and conveying writing fluids (103) and electrical assemblies for transport (108), acceleration (109) and deflection (110-112) of the ink jet (103 ″) are embedded.