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EP0658955B1 - Planarfilter for a connector with a plurality of terminals - Google Patents

Planarfilter for a connector with a plurality of terminals Download PDF

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Publication number
EP0658955B1
EP0658955B1 EP94119453A EP94119453A EP0658955B1 EP 0658955 B1 EP0658955 B1 EP 0658955B1 EP 94119453 A EP94119453 A EP 94119453A EP 94119453 A EP94119453 A EP 94119453A EP 0658955 B1 EP0658955 B1 EP 0658955B1
Authority
EP
European Patent Office
Prior art keywords
planar filter
ground
contact
openings
connecting pins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94119453A
Other languages
German (de)
French (fr)
Other versions
EP0658955A3 (en
EP0658955A2 (en
Inventor
Bob Mouissie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FILTEC GmbH Filtertechnologie fuer die Elektronikindustrie
Original Assignee
FILTEC GmbH Filtertechnologie fuer die Elektronikindustrie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FILTEC GmbH Filtertechnologie fuer die Elektronikindustrie filed Critical FILTEC GmbH Filtertechnologie fuer die Elektronikindustrie
Publication of EP0658955A2 publication Critical patent/EP0658955A2/en
Publication of EP0658955A3 publication Critical patent/EP0658955A3/en
Application granted granted Critical
Publication of EP0658955B1 publication Critical patent/EP0658955B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/719Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H01R13/7195Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with planar filters with openings for contacts

Definitions

  • the invention relates to a planar filter for connectors with a Multitude of signal lines to be connected arranged in rows and columns, with a carrier for each of these signal lines an opening and in the area of this opening for each of these signal lines a capacitor with a first coating, connected to the assigned signal line, a second covering, connected via the conductive housing with ground, as well as a layered dielectric between the first and second covering, in which in each of the openings of the planar filter, a contact insert with at least two contact fingers soldered to hold the connector pins and with a extending into the opening, the first covering of the associated Capacitor is electrically connected, the connecting pins electrically via the contact fingers with that of the respective signal electrode associated first coating of the capacitors can be connected, and two opposite edges of the planar filter as conductive side areas connected to its ground electrode trained and with the metallic housing of the connector Ground are connectable.
  • Planar filters and seals are used to make a filter connector inserted into the connector housing; the individual capacitors of the planar filter are over on the outer edge of the planar filter attacking earth springs with the connector housing for manufacture the earth connection and via spring clips for the contact pins with the connecting pins inserted into the lead-through openings connected to produce the signal line derivatives. Furthermore, it is difficult to find the ones necessary for effective filtering To accommodate capacities on the substrate of the planar filter, because in the known arrangements each filter capacitor the assigned Signal line surrounds, being in the immediate vicinity of the signal line is an annular surface in which the mass coating, because of the necessary insulation is not routed to the signal line, is missing, so that this area cannot contribute to the capacity.
  • the object on which the invention is based is derived from this, after which a planar filter for connectors are proposed should be sufficient capacities for narrow signal lines for the individual capacitors surrounding the signal lines and inserted into the connector without a solder connection can be, so that it with press-fit pins in plastic parts connected and also in existing ones with a connector provided connectors can be used.
  • each of the openings of the planar filter a contact insert with at least two contact fingers soldered in, and so set in the opening.
  • the capacitors can be connected.
  • These contact fingers which the connector pin inserted through the insert both held and electrically with the assigned covering the signal electrode of the capacitor.
  • Two opposite each other The edges of the planar filter are as with its ground electrode connected. conductive side areas: they become about the metallic housing of the connector with the general Ground connected.
  • dumbbell or diabolo form have a preferred axis and are nested one inside the other, that the preferred axes of adjacent capacitors are crossed, the coverage area is (relatively) enlarged with the same space requirement, and with it the capacitance of the capacitors.
  • these structures are advantageous as double-T formed, being in the middle of the connecting the two end webs Center bar forms the preferred axis, in the middle of which Implementation is arranged for the associated pin.
  • each contact insert has a sleeve that as in the Opening for the passage of the connecting pins can be used in a form-fitting manner Soldering sleeve is formed, with which in this opening extending into it the first covering associated with the signal electrode Capacitor can be soldered and electrically connected by soldering is. This training creates an assignment that is in each of the openings can be used.
  • the electrical connection to the The coating of the signal electrode is made with this solder sleeve, whose outer diameter corresponds approximately to the inner diameter of the opening, with the solder sleeve in the opening with the one in it extending into it, the capacitor to the signal electrode leads, in one embodiment is soldered, which also under Consideration of shocks to a safe mechanical Holding the connector pins in the opening and to their electrical perfect connection to the covering of the assigned capacitor leads.
  • the inserts intended for each pin bushing are part of the planar filter; they become advantageous from one spring-elastic metallic material, for example spring bronze, to improve contact with a precious metal pad can be provided, rolled and into the through openings the planar filter used so that the pins of the Connector through the contact inserts and are jam there.
  • This type of filtering is suitable especially for connectors where the pins are in one Plastic carrier pressed in and e.g. in plastic with harpoon bridge type Anchors are fixed because of the temperature load when soldering.
  • the clamping results in a good fit and good Contacting, so that this training can at least always be used is when soldering a limited temperature rating allowed.
  • These features also allow a subsequent Equipping connectors with planar filters equipped in this way. Through these resilient contact inserts, the Force path from pen to filter holder interrupted, which is a higher Security against major accelerations or decelerations offers occurring forces.
  • the resilient contact fingers make soldering to the connection pins superfluous, with them also the insertion due to dimensional deviations not bothered.
  • the resilient contact inserts also provide electrical perfect contact between the pins and the associated coatings of the capacitors, so that both influences do not represent an obstacle to retrofitting. Let it go solder the sleeves into the feedthrough openings as the planar filter thermally resilient and at this stage of manufacture is still separated from the connector to be equipped. Despite this Solder the contact insert into the lead-through opening of the The benefits of filter carriers remain as they interact with the pins Contact fingers remain unaffected.
  • Each of the contact inserts advantageously has a sleeve, of which from conically tapering contact fingers in essentially extend in the axial direction.
  • the contact insert particularly has for clamping flat pins two with the contact pin cooperating contact fingers that each other are arranged opposite each other. With these lying opposite arranged contact fingers the connector pin interacts so that he pushes them apart and is held by clamps, the clamping forces making the contact.
  • terminals round pins provided three contact fingers that covered an angular distance of 90 ° to the circumferential angle of the sleeve or have 120 °.
  • the contact insert with the three contact fingers has such an education that with the small size of such Contact inserts can still be produced mechanically.
  • the Contact fingers are evenly distributed over the circumference of the sleeve, which leads to an angular distance of 120 °. Clamp the contact fingers can be both with round diameter pins, however pins of other cross-sectional shapes also jam, whereby the arrangement of the contact fingers adapted to the cross section of the pins becomes.
  • the contact fingers are not at an angular distance of 90 ° evenly distributed over the circumference, but it forms one Gap so that one-sided pressure is exerted on the connector pin becomes.
  • These arrangements are also used to ensure that the sleeve is provided with an axial gap, the one between the middle two contact fingers is arranged, or the other arranged in such a way is that the two neighboring contact fingers from him have an angular distance of 90 ° and the third of the contact fingers is diametrically opposed to it. This advantageous in the middle between two of the contact fingers the sleeve receives the resilient clamping action, which is the introduction of the Relieved sleeve in the lead-through opening.
  • a strip is used to produce such a contact insert made of a resilient material, for example with a Feather bronze coated with precious metal, stamped and rolled in this way, that the sleeve with the contact fingers from a strip of tape is held, the spacing of the sleeves the distance of the in through openings for the Pins and their number the number of these openings corresponds, and with the remaining strip of tape a Forms transportation aid.
  • the contact inserts stay on the tape strip, dividing it into sections with one of the required ones Number of contact inserts, they are kept in the planar filter used and then separated from the tape strip.
  • the production takes place in such a way that an endless strip is processed can and the contact inserts occur in groups.
  • the planar filter which is equipped with such contact inserts is advantageously arranged on a metallic ground contact plate, that of the through openings of the ceramic filter carrier has corresponding openings, with a larger diameter, to avoid unwanted contacts between the pins and to prevent the ground contact plate lying at ground potential.
  • the ground contact plate preferably has at least on one of the sides on two opposite sides of the planar filter a strip-like supernatant to connect to the mass connected contacts or the general ground, the ground connection preferably done via the connector.
  • the protruding edge of the metallic Provide the bracket with aligned openings for the passage of the fastening fingers the sheets of the side shields that over it also be connected to ground.
  • the planar filter according to the invention finds a preferred application in particular intended for mounting on printed circuit boards Connectors with a plastic base plate that have side, is provided with contact blades shielding, and the Openings for the passage of the pins carrying the signals and the contact tongues of the shielding plates for connecting them having the general mass, being on the base plate Lateral guide fingers formed at right angles to it are that grasp the mating connector and lead so that the connecting pins hit the sockets and allow them to be inserted into them, and which are arranged intermittently in sections so that at least Cross shields can be used between some of the sections are.
  • the invention faces the circuit board On the side of the base plate, there is a recess that receives the planar filter on, the openings provided in the base plate for the Feedthroughs of the pins towards the recess conically are expanded.
  • This allows the planar filter under the base plate be arranged, possibly protruding parts of the contact fingers can be found in the conical extensions of the base plate Space and the ground contact plate on which the planar filter is mounted is, and that together with the shielding sheet metal inserts of the side shields and cross shields on the base plate be established, forms an effective shield from the bottom forth.
  • Edge strip of the ground contact plate is provided with openings that to carry out the fastening fingers of side shields with align these and corresponding holes in the circuit board.
  • the strip-shaped edges protruding on both sides of the planar filter the ground contact plate are provided with openings to Perform the fastening fingers of the side sheet metal inserts, whereby these fastening fingers for both fixing and connection serve with a common crowd.
  • the contact inserts work here of the planar filter with the connecting pins and the Ground contact plate with the strip-shaped projections with the Clamping and contact fingers of the side shielding plates and contacting together so that the planar filter and is electrically connected through mass and the Capacitors than between the signal lines and the ground Capacities work.
  • the in Base plate provided openings for the bushings of the signal pins have a conical extension towards the recess. This training facilitates the insertion of the pins (or instead of the sockets provided).
  • the side strips of the ground contact plate along the edge (s) of the planar filter with is / are provided with a fold to determine and adapt to height differences.
  • the planar filter can also be used be provided with a level compensation below to prevent excess Compensate parts of the connecting pins with a larger diameter to be able to. This can also be used to bridge dimensional differences, which plays an important role, especially when retrofitting.
  • Figures 1 and 2 show a top view and a side view as well a perspective schematic view of a planar filter 1 with rows and splitting through openings for pins 11.1 (Fig. 9), the interruptions of the. Indicated in both dimensions Representation of the planar filter in Figure 1 indicate that this in The principle can be used for any number of signal connections.
  • the Planar filter contains at least for each of the signal line leadthrough a capacitor with two layers, one of which with the assigned signal line and the other, generally as a common Electrode for all or for groups of capacitors is connected to the crowd. With this training, this is a planar filter 1 suitable as a filter for a number of signal lines to be, for example, the connections from the connector contacts one with pins 11.1 (Fig.
  • Printed circuit board 11 (Fig. 8) via a connector 10 (Fig. 8) to produce further electronic components.
  • contact inserts 5 used in this way are designed so that the pins carrying the electronic signals 11.1 (Fig. 9) in the through openings of the planar filter 1 specifies and for establishing an electrical connection with the capacitor of the planar filter assigned to the connecting pin 1 are connected, for which purpose the coating forming the signal electrode in is known in the lead-through opening.
  • the Counter-coatings of the capacitors of the planar filter 1 are all common or connected in groups and advantageously become two to one another led out opposite metallized side surfaces 3 and connected to the general earth via a contact; it goes without saying that the ground electrode also applies to everyone four sides of the planar filter 1 can be guided, with the Given the geometry of the planar filter, possibly disturbing self-induction determines the routing of the ground contacts.
  • FIG. 3 and 4 show a separate ground contact plate 4 and a planar filter provided with such a ground contact plate 4 1, in its openings for the implementation of the connecting pins Contact inserts 5 are used.
  • the ground contact plate 4 has an opening for each pin 11.1 to be carried out (FIG. 9) 4.1, the diameter of which is sufficiently large to allow contact between the connecting pin and the ground contact plate which is at ground potential 4 to prevent.
  • the laterally protruding stripes the ground contact plate 4 are provided here with a fold 4.3, and they also have slot-like openings 4.2, through the fastening fingers 15.1 (FIG. 8) of side shields 15 (Fig. 8) for attachment and for making contact and jammed can be.
  • the planar filter 1 is thus on the ground contact plate 4 placed that the axes of the openings 4.1 for the pin bushings with the openings in the planar filter 1 used to carry out the pins 11.1 (Fig. 9) contact inserts 5 are in line.
  • Figures 5 and 6 show details of the contact inserts.
  • the perspective Representation of Figure 5 leaves the shape of the contact inserts 5 recognize.
  • the sleeve 6, determined for the approximately positive Insert into the openings for the connection pins 11.1 (Fig. 9) in the planar filter 1, is designed as a solder sleeve; she points for a better positive fit when inserting a slot 6.1 on the can also yield resiliently, making insertion easier.
  • the Figure 6 shows this in top view and side view.
  • FIG. 7 shows a planar filter 1 with those removed from right to left Layer structure, in the right section I the cover, in section II to the left, the signal electrodes, in section III the dielectric and finally the continuously formed ground electrode can be seen in section IV are.
  • the planar filter 1 is from a carrier 2 built up in layers, on which the ground electrode 2.1 over the entire surface by cutting out an annular space around the lead-through openings 1.1 for the pins 11.1 (Fig. 8, 9) arranged is, and on which the dielectric 2.2 is applied so that it is the Ground electrode 2.1 in the areas of the lead-through openings 11.1 covers, while in the areas of the metallized edges 3 Ground electrode 2.1 is exposed and connected to a general Mass allowed.
  • the signal electrodes are on the dielectric 2.1 2.3 applied in pairs on both sides of each lead-through opening 1.1 and arranged so that their extending in the direction of the preferred axis Arms 2.4 with the metallization 1.2 in the through opening 1.1 are connected.
  • the planar filter 1 is exposed to external influences protected with the cover 2.5, which the contact areas on the edges 3 of the planar filter 1, which form the ground connection, free leaves.
  • FIG. 7a shows such an embodiment, taking into account annular areas around the pin bushings 1.1, in which the of the dielectric 2.2 covered ground electrode 2.1 (Fig. 7) is recessed and the carrier 2 is partially exposed, and that between the individual signal electrodes 2.3 (only designated in the middle area) because of different Potentials for isolation necessary distance, approximately fills maximum area.
  • the two, here approximately leaf-shaped Electrode surfaces 2.3 are used to manufacture the electrical Connection with the pin 11.1 (Fig.
  • FIG. 7b shows a modification of this structure, the signal electrode also shown enlarged here 2.3 (only in the middle area) of a capacitor in the area neighboring capacitors has the structure of a double T that the lead-through opening 1.1 for the associated pin in the middle contains.
  • the corresponding to the flanges of a double T profile Parts of the structure form the signal electrode 2.3 Arms 2.4 running in the direction of the preferred axis with the metallization 1.2 are connected in the lead-through opening 1.1. They form together with the ground electrode separated by the dielectric 2.1 (Fig. 7) the respective capacitor and determine its capacitance.
  • the main part of the capacitor Forming surface structures are those in the direction of the preferred axis extending arms 2.4 of the structure to the metallization of the Lead-through opening 1.1 brought up for the associated pin and a metallization reaching into this opening 1.2 connected to this. Hiss to make contact Signal electrode and pin is the contact insert 5 in the Terminal pin bushing 1.1 soldered into the connector pin 11.1 (see FIGS.
  • Figure 8 shows a possible application example of a connector 10, which is placed on a circuit board 11.
  • the connector pins 11.1 (Fig. 9) which in the circuit board 11 approximately by means of a Preßfit connection are fixed there with the corresponding Connected interconnects and provide the use of the circuit board 11 necessary connection points, which with further electronic Circuits or switching elements are to be connected, whereby the connection should be a detachable.
  • This solvability is with the Connector 10 achieved with a (not shown) Mating connector interacts.
  • This connector is made by a base plate 12 made of plastic with one of the number and arrangement the number of pins 11.1 corresponding to (not closer designated) through openings is provided.
  • the base plate 12 also has one Recess 14 on its underside with such a height that the Planar filter finds place on.
  • the planar filter is with a ground contact plate 4 provided with mounting slots 4.2, through which the Ground contact made either to the circuit board 11 or to the mating connector the earth connection via the side shields 15 runs and also from the circuit board over this to the mating connector or vice versa.
  • the side shields 15 are with Fastening tongues 15.1 provided through the slot-shaped fastening openings the ground contact plate 4 and the circuit board 11 are managed and determined accordingly, and at least of which form some contact tongues to ensure a safe earth connection to the mating connector to reach.
  • the base plate 12 also advantageously has slot-shaped openings between those separated from one another by transverse shields 18 Departments of the connector 10, which are also provided terminal are to limit the connector 10.
  • the inevitable Protrusions of the contact fingers 7 of the contact inserts 5 protrude beyond Surface of the planar filter 1 (see FIGS. 1, 2); around these supernatants to be able to accommodate, are provided in the base plate 12 Openings for the passage of the pins 11.1 from the recess 14 forth so that these conical projections in the carrier of the planar filter 1 from these recesses become.
  • FIG. 9a each show a section through a connector 10 according to Figure 8.
  • the base plate 12 is on the circuit board 11 attached, the pins 11.1 perpendicular to Printed circuit board 11 and through the base plate 12 of the connector 10 are guided; the side shields 15, the side shield 15 'of the end face and the transverse shields 18 form the housing of the connector 10.
  • FIG. 9a the base plate 12 provided with the recess 14 so that the planar filter 1 in this Recess is housed, the protrusions of the contact fingers 7 lie in the cone-like recess 12.1 of the base plate 12.
  • the Base plate 12 'shown in FIG. 9b corresponds to the current one Technology; it has no recess for inserting the planar filter 1 on.
  • the planar filter equipped in this way can also be retrofitted in a simple way.

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Description

Die Erfindung betrifft ein Planarfilter für Steckverbinder mit einer Vielzahl von in Reihen und Spalten angeordneter zu verbindender Signalleitungen, mit einem Träger, der für jede dieser Signalleitungen eine Öffnung und im Bereich dieser Öffnung für jede dieser Signalleitungen einen Kondensator mit einem ersten Belag, verbunden mit der zugeordneten Signalleitung, einem zweiten Belag, verbunden über das leitende Gehäuse mit Masse, sowie ein schichtförmiges Dielektrikum zwischen erstem und zweitem Belag aufweist, bei dem in jeder der Öffnungen des Planarfilters ein Kontakteinsatz mit mindestens zwei Kontaktfingern zum Halten der Anschlußstifte eingelötet und mit einem sich in die Öffnung hinein erstreckenden ersten Belag des zugeordneten Kondensators elektrisch verbunden ist, wobei die Anschlußstifte über die Kontaktfinger elektrisch mit dem der jeweiligen Signal-Elektrode zugeordneten ersten Belag der Kondensatoren verbindbar sind, und bei dem zwei einander gegenüberliegende Ränder des Planarfilters als mit dessen Masse-Elektrode verbundene, leitende Seitenbereiche ausgebildet und über das metallische Gehäuse des Steckverbinders mit Masse verbindbar sind. The invention relates to a planar filter for connectors with a Multitude of signal lines to be connected arranged in rows and columns, with a carrier for each of these signal lines an opening and in the area of this opening for each of these signal lines a capacitor with a first coating, connected to the assigned signal line, a second covering, connected via the conductive housing with ground, as well as a layered dielectric between the first and second covering, in which in each of the openings of the planar filter, a contact insert with at least two contact fingers soldered to hold the connector pins and with a extending into the opening, the first covering of the associated Capacitor is electrically connected, the connecting pins electrically via the contact fingers with that of the respective signal electrode associated first coating of the capacitors can be connected, and two opposite edges of the planar filter as conductive side areas connected to its ground electrode trained and with the metallic housing of the connector Ground are connectable.

Bei vielpoligen Steckverbindern, wie sie für die Übermittlung von digitalen oder analogen Meßsignalen von Vielfach-Meßeinrichtungen oder bei Hochgeschwindigkeits-Übermittlung von Informationen eingesetzt werden, besteht die Notwendigkeit einer Filterung, um eingestreute Störsignale auszufiltern. Dieses Ausfiltern von eingestreuten Störsignalen erfolgt im allgemeinen mit Kondensatoren, von denen je einer für jede ein Signal führende Leitung vorgesehen ist. Dazu werden die Kondensatoren vorteilhaft in Planarfiltern zusammengefaßt und in die Steckverbinder eingesetzt, wobei die Planarfilter von den Signalleitungen durchsetzt sind, und wobei für jede der Signalleitungen mindestens ein Kondensator vorgesehen ist und die Kondensatoren auf einem im allgemeinen keramischen, insbesondere aluminiumoxidischen Träger angeordnet sind. Werden die einzelnen Signalleitungen von in Kunststoff-Teile eingepreßten Stiften (Preßfit-Verbindungen) gebildet, verbietet sich das Verlöten dieser Stifte mit den in die Durchführung hineinreichenden Belägen der Signal-Elektroden. Derartige Steckverbinder sind beispielsweise in den US-PS'en 3 447 104, 4 741 710 oder in der EU 0 398 807 A2 (korresp. zu US-PS 4 950 185) beschrieben. Eine andere Ausbildung eines Steckverbinders beschreibt die EP-A-339 802: Hier sind die Anschlussbuchsen/-stifte in einem Gehäuse angeordnet und mit Durchführungskondensatoren versehen, die die Filterung bewirken. Diese Durchführungskondensatoren werden als viellagige Keramik-Kondensatoren ausgebildet, deren Elektroden axial zu den Durchführungen der Signalleitungen liegen, wobei die notwendige Kapazität dadurch erreicht wird, dass zur Vergrösserung der Elektrodenfläche auch mehrere Lagen übereinander angeordnet werden.For multi-pin connectors, such as those used for the transmission of digital or analog measuring signals from multiple measuring devices or used for high-speed transmission of information there is a need for filtering in order to interleave Filter out interference signals. This filtering out of interspersed Interference signals generally take place with capacitors, one of which one for each line carrying a signal is provided. To the capacitors are advantageously combined in planar filters and inserted into the connector, the planar filter from the Signal lines are interspersed, and being for each of the signal lines at least one capacitor is provided and the capacitors on a generally ceramic, especially aluminum oxide Carriers are arranged. The individual signal lines of pins pressed into plastic parts (press-fit connections) formed, the soldering of these pins with the in the Carrying out the covering of the signal electrodes. Such Connectors are described, for example, in US Pat. Nos. 3,447,104, 4 741 710 or in the EU 0 398 807 A2 (corr. To US-PS 4 950 185) described. Another design of a connector describes EP-A-339 802: Here are the connection sockets / pins in one housing arranged and provided with feedthrough capacitors that the Effect filtering. These feedthrough capacitors are called multi-layer Ceramic capacitors formed, the electrodes of which are axial the bushings of the signal lines, the necessary Capacity is achieved by enlarging the electrode area several layers can also be arranged one above the other.

Planarfilter und Dichtungen werden zum Herstellen eines Filter-Steckverbinders in das Steckergehäuse eingesetzt; die einzelnen Kondensatoren des Planarfilters sind über am Außenrand des Planarfilters angreifenden Erdungsfedern mit dem Steckergehäuse zur Herstellung der Masse-Verbindung und über Federklammern für die Kontaktstifte mit den in die Durchführungs-Öffnungen eingesetzten Anschlußstiften zur Herstellung der Signalleitungs-Ableitungen verbunden. Weiterhin ist es schwierig, die für wirksame Filterungen notwendigen Kapazitäten auf dem Substrat des Planarfilters unterzubringen, da bei den bekannten Anordnungen jeder Filterkondensator die zugeordnete Signalleitung umgibt, wobei in unmittelbarer Nähe der Signalleitung eine ringförmige Fläche ist, in der der Massebelag, der wegen der notwendigen Isolation nicht bis an die Signalleitung geführt ist, fehlt, so daß diese Fläche nicht zur Kapazität beitragen kann. Mit diesem Aufbau soll erreicht werden, daß eine hinreichende Filterung bei eng stehenden Signalleitungen erreicht wird, die auch durch mechanische Erschütterungen gedämpft wird. Nachteilig bei diesen Anordnungen ist, daß sie von vorn herein mit dem Steckverbinder montiert sein müssen, wozu die Verbindung der Signalleitung mit dem zugeordneten Kondensatorbelag gelötet ist. Eine derartige Lötverbindung ist jedoch dann nicht möglich, wenn die Signalleitung von Stiften gebildet wird, die im Preßverfahren (press-fit) in eine Kunststoffplatte eingepreßt sind.Planar filters and seals are used to make a filter connector inserted into the connector housing; the individual capacitors of the planar filter are over on the outer edge of the planar filter attacking earth springs with the connector housing for manufacture the earth connection and via spring clips for the contact pins with the connecting pins inserted into the lead-through openings connected to produce the signal line derivatives. Furthermore, it is difficult to find the ones necessary for effective filtering To accommodate capacities on the substrate of the planar filter, because in the known arrangements each filter capacitor the assigned Signal line surrounds, being in the immediate vicinity of the signal line is an annular surface in which the mass coating, because of the necessary insulation is not routed to the signal line, is missing, so that this area cannot contribute to the capacity. With this structure is intended to achieve sufficient filtering with narrow signal lines, which is also achieved by mechanical Vibration is dampened. A disadvantage of these arrangements is that it is assembled from the beginning with the connector must be what the connection of the signal line with the assigned capacitor coating is soldered. Such a solder joint is not possible, however, if the signal line from Pins are formed which are press-fit into a Plastic plate are pressed.

Daraus leitet sich die der Erfindung zugrunde liegende Aufgabe ab, nach der ein Planarfilter für Steckverbinder vorgeschlagen werden soll, das bei eng liegenden Signalleitungen hinreichende Kapazitäten für die einzelnen, die Signalleitungen umgebenden Kondensatoren bereitstellen und ohne Lötverbindung in den Steckverbinder eingesetzt werden kann, so daß es mit in Kunststoff-Teile eingepreßten Anschlußstiften verbunden und auch in bereits vorhandene mit einem Steckverbinder versehene Steckverbindungen eingesetzt werden kann.The object on which the invention is based is derived from this, after which a planar filter for connectors are proposed should be sufficient capacities for narrow signal lines for the individual capacitors surrounding the signal lines and inserted into the connector without a solder connection can be, so that it with press-fit pins in plastic parts connected and also in existing ones with a connector provided connectors can be used.

Diese Aufgabe wird nach der Erfindung durch die im Kennzeichen des Hauptanspruchs genannten Merkmale gelöst; vorteilhafte Weiterbildungen und bevorzugte Ausführungsformen beschreiben die Unteransprüche.This object is achieved according to the invention by the in the characteristics of Main features mentioned solved; advantageous further training and preferred embodiments describe the subclaims.

Nach der Erfindung ist in jede der Öffnungen des Planarfilters mit einem Kontakteinsatz mit mindestens zwei Kontaktfingern eingelötet, und so in der Öffnung festgelegt. Durch dieses Verlöten ist er mit dem sich in die Öffnung hinein erstreckenden ersten Belag des zugeordneten Kondensators elektrisch verbunden, und über den Kontaktfinger mit dem der jeweiligen Signal-Elektrode zugeordneten ersten Belag der Kondensatoren verbindbar. Mit diesen Kontaktfingern werden die den durch den Einsatz geführten Anschlußstift des Steckverbinders sowohl gehalten als auch elektrisch mit dem zugeordneten Belag der Signal-Elektrode des Kondensators verbunden. Zwei einander gegenüberliegende Ränder des Planarfilters sind als mit dessen Masse-Elektrode verbundene. leitende Seitenbereiche ausgebildet: sie werden über das metallische Gehäuse des Steckverbinders mit der allgemeinen Masse verbunden. Durch diese Anordnung werden durch Lötung fest in dem Planarfilter verankerte Kontakteinsätze benutzt, um die durchgehenden Anschlußstifte federnd zu halten; gleiches gilt für die Masseverbindung, die mit den Seitenbereichen des Planarfilters eine feste ist.According to the invention is in each of the openings of the planar filter a contact insert with at least two contact fingers soldered in, and so set in the opening. With this soldering he is with the first covering of the associated extending into the opening Capacitor electrically connected, and via the contact finger with the first assigned to the respective signal electrode The capacitors can be connected. With these contact fingers which the connector pin inserted through the insert both held and electrically with the assigned covering the signal electrode of the capacitor. Two opposite each other The edges of the planar filter are as with its ground electrode connected. conductive side areas: they become about the metallic housing of the connector with the general Ground connected. With this arrangement, soldering contact inserts firmly anchored in the planar filter to hold spring pins continuously; the same applies to the Earth connection that with the side areas of the planar filter is fixed.

Die Kapazitäten sind in ihrer Größe nach durch den Raum zwischen den Signal-Leitungen beschränkt: bei enger Durchführungs-Dichte lassen sich nur mit Dielektrica außerordentlich hoher Dielektrizitätskonstanten hinreichende Kapazitätswerte erreichen: diese Dielektrica sind jedoch nur schwierig zu verarbeiten. Für die Beschränkung der Kapazitätswerte spielt die Durchführung der Anschlußstifte eine bedeutsame Rolle: Um Spannungsüberschläge zu unterbinden. endet die durchgehende Masse-Elektrode im Abstand vor der Durchführungsöffnung für den Anschlußstift; damit entsteht ein ringförmiger Bereich, der zum Kapazitäts-Wert nichts beiträgt, und der besonders bei scheibenförmigen Elektroden ins Gewicht fällt. Werden nun die ersten, den Signal-Elektroden zugeordneten Beläge der Kondensatoren so ausgebildet. daß sie eine Doppel-Struktur in Hantel- oder Diabolo-Form mit einer Vorzugsachse aufweisen und so ineinander geschachtelt sind, daß die Vorzugsachsen benachbarter Kondensatoren gekreuzt verlaufen, ist die Überdeckungsfläche bei gleichem Platzbedarf (relativ) vergrößert, und damit auch die Kapazitäten der Kondensatoren. Da bei den hier wichtigen Frequenzen schon Induktivitäts- und Laufzeiteinflüsse zu beachten sind, kann nicht immer der volle verfügbare Platz ausgenutzt werden; hier sind diese Strukturen vcrteilhaft als Doppel-T ausgebildet, wobei in der Mitte des die beiden End-Stege verbindenden Mittelsteges die Vorzugsachse bildet, in deren Mitte die Durchführung für den zugeordneten Anschlußstiftes angeordnet ist. The capacities are in size by the space between them Signal lines limited: leave with a tight bushing density only with Dielektrica extremely high dielectric constant achieve sufficient capacitance values: however, these dielectrics are difficult to process. For the limitation of the capacity values the implementation of the pins plays a significant role Role: To prevent flashovers. the continuous ends Ground electrode at a distance in front of the feed-through opening for the connector pin; this creates a ring-shaped area that leads to the Capacity value contributes nothing, and especially with disc-shaped Electrodes. Now be the first, the signal electrodes assigned coatings of the capacitors. that they have a double structure in dumbbell or diabolo form have a preferred axis and are nested one inside the other, that the preferred axes of adjacent capacitors are crossed, the coverage area is (relatively) enlarged with the same space requirement, and with it the capacitance of the capacitors. There with the frequencies important here already inductance and runtime influences are not always full available space be exploited; here these structures are advantageous as double-T formed, being in the middle of the connecting the two end webs Center bar forms the preferred axis, in the middle of which Implementation is arranged for the associated pin.

Um die Kontakteinsätze in die Durchführungsöffnungen einlöten zu können, weist jeder Kontakteinsatz eine Hülse auf, die als in die Öffnung zur Durchführung der Anschlußstifte etwa formschlüssig einsetzbare Löthülse ausgebildet ist, die mit dem sich in diese Öffnung hinein erstreckenden ersten Belag des der Signal-Elektrode zugeordneten Kondensators durch Lötung verlöt- und elektrisch verbindbar ist. Durch diese Ausbildungen wird ein Einsatz geschafft, der in jede der Öffnungen einsetzbar ist. Die elektrische Verbindung zum Belag der Signal-Elektrode wird mit dieser Löthülse hergestellt, deren Außendurchmesser etwa dem Innendurchmesser der Öffnung entspricht, wobei die Löthülse in der Öffnung mit dem sich in diese hinein erstreckenden Kondensator-Belag, der zur Signal-Elektrode führt, in der einen Ausführungsform verlötet ist, was auch unter Berücksichtigung von Erschütterungen zu einer sicheren mechanischen Halterung der Anschlußstifte in der Öffnung und zu deren elektrisch einwandfreien Verbindung dem Belag des zugeordneten Kondensators führt. Die für jede Anschlußstift-Durchführung vorgesehenen Einsätze sind Bestandteile des Planarfilters; sie werden vorteilhaft aus einem feder-elastischen metallischen Werkstoff, beispielsweise Federbronze, die zur Verbesserung der Kontaktgabe mit einer Edelmetallauflage versehen sein kann, gerollt und in die Durchführungsöffnungen des Planarfilters so eingesetzt, daß die Anschlußstifte des Steckverbinders durch die Kontakteinsätze gesteckt werden und sich dort verklemmen. Diese Art, eine Filterung zu erreichen, eignet sich insbesondere für Steckverbinder, bei denen die Anschlußstifte in einem Kunststoffträger eingepreßt und z.B. im Kunststoff mit harpunenstegartigen Verankerungen festgesetzt sind, wegen der Temperaturbelastung beim Löten. Die Klemmung ergibt einen guten Sitz und gute Kontaktgabe, so daß diese Ausbildung zumindest immer dann einsetzbar ist, wenn eine begrenzte Temperaturbelastbarkeit ein Verlöten nicht erlaubt. Gleiches gilt für den Fall, daß die absolute Maßhaltigkeit nicht gegeben ist, da die federnden Kontakteinsätze eine gewisse Nachgiebigkeit aufweisen. Diese Merkmale erlauben auch eine nachträgliche Bestückung von Steckverbindern mit so ausgerüsteten Planarfiltern. Durch diese federnden Kontakteinsätze wird auch der Kraftweg von Stift zum Filter-Träger unterbrochen, was eine höhere Sicherheit gegen bei großen Beschleunigungen oder Verzögerungen auftretende Kräfte bietet.To solder the contact inserts into the through holes can, each contact insert has a sleeve that as in the Opening for the passage of the connecting pins can be used in a form-fitting manner Soldering sleeve is formed, with which in this opening extending into it the first covering associated with the signal electrode Capacitor can be soldered and electrically connected by soldering is. This training creates an assignment that is in each of the openings can be used. The electrical connection to the The coating of the signal electrode is made with this solder sleeve, whose outer diameter corresponds approximately to the inner diameter of the opening, with the solder sleeve in the opening with the one in it extending into it, the capacitor to the signal electrode leads, in one embodiment is soldered, which also under Consideration of shocks to a safe mechanical Holding the connector pins in the opening and to their electrical perfect connection to the covering of the assigned capacitor leads. The inserts intended for each pin bushing are part of the planar filter; they become advantageous from one spring-elastic metallic material, for example spring bronze, to improve contact with a precious metal pad can be provided, rolled and into the through openings the planar filter used so that the pins of the Connector through the contact inserts and are jam there. This type of filtering is suitable especially for connectors where the pins are in one Plastic carrier pressed in and e.g. in plastic with harpoon bridge type Anchors are fixed because of the temperature load when soldering. The clamping results in a good fit and good Contacting, so that this training can at least always be used is when soldering a limited temperature rating allowed. The same applies in the event that the absolute dimensional accuracy is not given, since the resilient contact inserts a certain Show compliance. These features also allow a subsequent Equipping connectors with planar filters equipped in this way. Through these resilient contact inserts, the Force path from pen to filter holder interrupted, which is a higher Security against major accelerations or decelerations offers occurring forces.

Durch die federnden Kontaktfinger wird das Verlöten mit den Anschlußstiften überflüssig, mit ihnen wird auch das Einsetzen durch Maßabweichungen nicht gestört. Die federnden Kontakteinsätze stellen auch elektrisch einen einwandfreien Kontakt zwischen den Anschlußstiften und den zugeordneten Belägen der Kondensatoren her, so daß beide Einflüsse kein Hindernis für ein Nachrüsten darstellen. Dabei lassen sich die Hülsen in die Durchführungsöffnungen einlöten, da das Planarfilter thermisch belastbar und in diesem Stadium der Herstellung noch von dem auszurüstenden Steckverbinder getrennt ist. Trotz dieses Einlötens des Kontakteinsatzes in die Durchführungsöffnung des Filter-Trägers bleiben die Vorteile erhalten, da mit den Stiften zusammenwirkende Kontaktfinger unbeeinträchtigt bleiben.The resilient contact fingers make soldering to the connection pins superfluous, with them also the insertion due to dimensional deviations not bothered. The resilient contact inserts also provide electrical perfect contact between the pins and the associated coatings of the capacitors, so that both influences do not represent an obstacle to retrofitting. Let it go solder the sleeves into the feedthrough openings as the planar filter thermally resilient and at this stage of manufacture is still separated from the connector to be equipped. Despite this Solder the contact insert into the lead-through opening of the The benefits of filter carriers remain as they interact with the pins Contact fingers remain unaffected.

Vorteilhaft weist jeder der Kontakteinsätze ein Hülse auf, von der aus sich konusartig verengende Kontaktfinger in im wesentlichen axialer Richtung erstrecken. Durch diese Ausbildung wird zum einen ein guter Formschluß in der zylindrischen Durchführungsöffnung im Träger des Planarfilters erreicht. Die sich in axialer Richtung erstreckenden Kontaktfinger bilden dabei eine sich verengende konusartige Struktur, durch die der Anschlußstift geführt wird, der sich in dieser Struktur verklemmt und so einen sicheren Sitz bekommt; die scharfen Kanten des Materials stellen dabei auch einen sicheren elektrischen Kontakt her.Each of the contact inserts advantageously has a sleeve, of which from conically tapering contact fingers in essentially extend in the axial direction. Through this training, on the one hand a good positive fit in the cylindrical through opening in Carrier of the planar filter reached. The ones extending in the axial direction Contact fingers form a narrowing cone-like Structure through which the pin is passed jammed in this structure and thus gets a secure fit; the sharp edges of the material also provide a safe electrical Contact her.

In einer vorteilhaften Ausgestaltung weist der Kontakteinsatz besonders zum Klemmen von flach ausgebildeten Anschlußstiften zwei mit dem Anschlußstift zusammenwirkende Kontaktfinger auf, die einander gegenüber liegend angeordnet sind. Mit diesen gegenüber liegend angeordneten Kontaktfingeren wirkt der Anschlußstift so zusammen, daß er sie auseinander drängt und durch Klemmen festgehalten wird, wobei die Klemmkräfte den Kontakt herstellen.In an advantageous embodiment, the contact insert particularly has for clamping flat pins two with the contact pin cooperating contact fingers that each other are arranged opposite each other. With these lying opposite arranged contact fingers the connector pin interacts so that he pushes them apart and is held by clamps, the clamping forces making the contact.

In einer anderen vorteilhaften Ausgestaltung sind zum insbesondere Klemmen runder Anschlußstifte drei Kontaktfinger vorgesehen, die bezogen auf den Umfangswinkel der Hülse einen Winkelabstand von 90° oder 120° aufweisen. Der Kontakteinsatz mit den drei Kontaktfingern hat so eine Ausbildung, die bei der kleinen Abmessung derartiger Kontakteinsätze mechanisch noch herstellbar ist. Dabei können die Kontaktfinger über den Umfang der Hülse gleichmäßig verteilt sein, was zu einem Winkelabstand von 120° führt. Die Kontaktfinger verklemmen sich sowohl mit Stiften mit rundem Durchmesser, jedoch lassen sich auch Stifte anderer Querschnittsform verklemmen, wobei ggf. die Anordnung der Kontaktfinger dem Querschnitt der Stifte angepaßt wird. Bei einem Winkelabstand von 90° sind die Kontaktfinger nicht gleichmäßig über den Umfang verteilt, sondern es bildet sich eine Lücke, so daß ein einseitiger Druck auf den Anschlußstift ausgeübt wird. Diese Anordnungen werden auch dazu ausgenutzt, daß die Hülse mit einem axialen Spalt versehen ist, der zum einen mittig zwischen zwei Kontaktfinger angeordnet ist, oder der zum anderen derart angeordnet ist, daß die beiden benachbarten Kontaktfinger von ihm einen Winkelabstand von 90° aufweisen und der dritte der Kontaktfinger ihm diametral gegenüber angeordnet ist. Durch diesen vorteilhaft mittig zwischen zwei der Kontaktfinger vorgesehenen Spalt erhält die Hülse die federnde Klemmwirkung, was das Einführen der Hüle in die Durchführungsöffnung erleichtert.In another advantageous embodiment, in particular Terminals round pins provided three contact fingers that covered an angular distance of 90 ° to the circumferential angle of the sleeve or have 120 °. The contact insert with the three contact fingers has such an education that with the small size of such Contact inserts can still be produced mechanically. The Contact fingers are evenly distributed over the circumference of the sleeve, which leads to an angular distance of 120 °. Clamp the contact fingers can be both with round diameter pins, however pins of other cross-sectional shapes also jam, whereby the arrangement of the contact fingers adapted to the cross section of the pins becomes. The contact fingers are not at an angular distance of 90 ° evenly distributed over the circumference, but it forms one Gap so that one-sided pressure is exerted on the connector pin becomes. These arrangements are also used to ensure that the sleeve is provided with an axial gap, the one between the middle two contact fingers is arranged, or the other arranged in such a way is that the two neighboring contact fingers from him have an angular distance of 90 ° and the third of the contact fingers is diametrically opposed to it. This advantageous in the middle between two of the contact fingers the sleeve receives the resilient clamping action, which is the introduction of the Relieved sleeve in the lead-through opening.

Zur Herstellung eines derartigen Kontakteinsatzes wird ein Streifen aus einem federnd-elastischen Material, beispielsweise mit einem Edelmetallüberzug versehene Federbronze, derart gestanzt und gerollt, daß die Hülse mit den Kontaktfingern von einem Bandstreifen gehalten ist, wobei die Abstände der Hülsen dem Abstand der in regelmäßigen Abständen folgenden Durchführungsöffnungen für die Anschlußstifte und ihre Zahl der Anzahl dieser Durchführungsöffnungen entspricht, und wobei der verbleibende Bandstreifen eine Transporthilfe bildet. Die Kontakteinsätze bleiben am Bandstreifen, wobei dieser in Abschnitte zerteilt wird, mit einer der benötigten Anzahl von Kontakt einsätzen, sie werden so gehalten in das Planarfilter eingesetzt und danach von dem Bandstreifen getrennt. Dabei erfolgt die Herstellung so, daß ein Endlosstreifen verarbeitet werden kann und die Kontakteinsätze in Gruppen anfallen.A strip is used to produce such a contact insert made of a resilient material, for example with a Feather bronze coated with precious metal, stamped and rolled in this way, that the sleeve with the contact fingers from a strip of tape is held, the spacing of the sleeves the distance of the in through openings for the Pins and their number the number of these openings corresponds, and with the remaining strip of tape a Forms transportation aid. The contact inserts stay on the tape strip, dividing it into sections with one of the required ones Number of contact inserts, they are kept in the planar filter used and then separated from the tape strip. Here the production takes place in such a way that an endless strip is processed can and the contact inserts occur in groups.

Das Planarfilter, das mit derartigen Kontakteinsätzen ausgestattet ist, ist vorteilhaft auf einer metallischen Massekontaktplatte angeordnet, die der den Durchführungsöffnungen des keramischen Filter-Trägers entsprechende Öffnungen aufweist, mit einem größeren Durchmesser, um unerwünschte Kontakte zwischen den Anschlußstiften und der auf Masse-Potential liegenden Massekontaktplatte zu unterbinden. Die Massekontaktplatte weist zumindest an einer der Seiten, vorzugsweise an zwei einander gegenüber liegenden Seiten des Planarfilters einen streifenförmigen Überstand auf, zum Verbinden mit den mit Masse verbundenen Kontakten bzw. der allgemeinen Masse, wobei die Masseverbindung vorzugsweise über den Steckverbinder erfolgt. Vorteilhaft ist der/die überstehende/-den Randstreifen des metallischen Trägers mit fluchtenden Öffnungen versehen, zum Durchführen der Befestigungsfinger der Bleche der seitlichen Schirmungen, die darüber hinaus mit Masse verbunden werden. Mit dieser Ausbildung wird erreicht, daß das so ausgestattete Planarfilter ohne Schwierigkeiten durch rein mechanische Schritte in den Steckverbinder eingesetzt werden kann.The planar filter, which is equipped with such contact inserts is advantageously arranged on a metallic ground contact plate, that of the through openings of the ceramic filter carrier has corresponding openings, with a larger diameter, to avoid unwanted contacts between the pins and to prevent the ground contact plate lying at ground potential. The ground contact plate preferably has at least on one of the sides on two opposite sides of the planar filter a strip-like supernatant to connect to the mass connected contacts or the general ground, the ground connection preferably done via the connector. Advantageous is the protruding edge of the metallic Provide the bracket with aligned openings for the passage of the fastening fingers the sheets of the side shields that over it also be connected to ground. With this training it is achieved that the planar filter equipped in this way has no difficulty inserted into the connector by purely mechanical steps can be.

Eine bevorzugte Anwendung findet das Planarfilters nach der Erfindung in einem insbesondere zur Montage auf Leiterplatten bestimmten Steckverbinder mit einer Kunststoff-Basisplatte, die mit seitlichen, mit Kontaktzungen versehenen Abschirmblechen versehen ist, und die Öffnungen für die Durchführung der die Signale führenden Anschlußstifte sowie der Kontaktzungen der Abschirmbleche zu deren Verbinden mit der allgemeinen Masse aufweist, wobei an die Basisplatte sich rechtwinklig dazu erstreckende, seitliche Führungsfinger angeformt sind, die den Gegenstecker erfassen und so führen, daß die Anschlußstifte die Buchsen treffen und sich in diese einführen lassen, und die mit Unterbrechungen in Abschnitten so angeordnet sind, daß zumindest zwischen einigen der Abschnitte Querabschirmungen einsetzbar sind. Dabei weist nach der Erfindung die der Leiterplatte zugewandte Seite der Basisplatte eine das Planarfilter aufnehmende Aussparung auf, wobei die in der Basisplatte vorgesehenen Öffnungen für die Durchführungen der Anschlußstifte zur Aussparung hin konusartig erweitert sind. Damit kann das Planarfilter unter der Basisplatte angeordnet werden, möglicherweise überstehende Teile der Kontaktfinger finden in den konusartigen Erweiterungen der Basisplatte Platz und die Massekontaktplatte , auf die das Planarfilter montiert ist, und die zusammen mit den abschirmenden Blecheinsätzen der seitlichen Schirmungen und der Querschirmungen auf der Basisplatte festgelegt werden, bildet eine wirksame Abschirmung von der Unterseite her. Vorteilhaft ist dabei, wenn der/die überstehende/-den Randstreifen der Massekontaktplatte mit Öffnungen versehen ist, die zum Durchführen der Befestigungsfinger seitlicher Abschirmungen mit diesen und korrespondierenden Löchern in der Leiterplatte fluchten. Die beidseits des Planarfilters überstehenden streifenförmigen Ränder der Massekontaktplatte sind dazu mit Durchbrüchen versehen, zum Durchführen der Befestigungsfinger der seitlichen Blecheinsätze, wobei diese Befestigungsfinger sowohl zum Festlegen als auch zur Verbindung mit einer gemeinsamen Masse dienen. Dabei wirken die Kontakteinsätze des Planarfilters mit den Anschlußstiften und die Massekontaktplatte mit den streifenförmigen Überständen mit den Befestigungs- und Kontaktfingern der seitlichen Abschirmbleche klemmend und kontaktgebend zusammen, so daß das Planarfilter signalleitungs- und massemäßig elektrisch durchverbunden ist und die Kondensatoren als zwischen den Signalleitungen und der Masse liegende Kapazitäten wirken. Weiterhin ist es vorteilhaft, wenn die in der Basisplatte vorgesehenen Öffnungen für die Durchführungen der Signalstifte zur Aussparung hin eine konusartigen Erweiterung aufweisen. Diese Ausbildung erleichtert das Einführen der Anschlußstifte (oder anstelle der Anschlußstifte vorgesehenen Buchsen).The planar filter according to the invention finds a preferred application in particular intended for mounting on printed circuit boards Connectors with a plastic base plate that have side, is provided with contact blades shielding, and the Openings for the passage of the pins carrying the signals and the contact tongues of the shielding plates for connecting them having the general mass, being on the base plate Lateral guide fingers formed at right angles to it are that grasp the mating connector and lead so that the connecting pins hit the sockets and allow them to be inserted into them, and which are arranged intermittently in sections so that at least Cross shields can be used between some of the sections are. According to the invention, it faces the circuit board On the side of the base plate, there is a recess that receives the planar filter on, the openings provided in the base plate for the Feedthroughs of the pins towards the recess conically are expanded. This allows the planar filter under the base plate be arranged, possibly protruding parts of the contact fingers can be found in the conical extensions of the base plate Space and the ground contact plate on which the planar filter is mounted is, and that together with the shielding sheet metal inserts of the side shields and cross shields on the base plate be established, forms an effective shield from the bottom forth. It is advantageous if the protruding person (s) Edge strip of the ground contact plate is provided with openings that to carry out the fastening fingers of side shields with align these and corresponding holes in the circuit board. The strip-shaped edges protruding on both sides of the planar filter the ground contact plate are provided with openings to Perform the fastening fingers of the side sheet metal inserts, whereby these fastening fingers for both fixing and connection serve with a common crowd. The contact inserts work here of the planar filter with the connecting pins and the Ground contact plate with the strip-shaped projections with the Clamping and contact fingers of the side shielding plates and contacting together so that the planar filter and is electrically connected through mass and the Capacitors than between the signal lines and the ground Capacities work. It is also advantageous if the in Base plate provided openings for the bushings of the signal pins have a conical extension towards the recess. This training facilitates the insertion of the pins (or instead of the sockets provided).

Schließlich ist es vorteilhaft, wenn die Seitenstreifen der Massekontaktplatte längs des/der Randes/Ränder des Planarfilters mit einem Umbug versehen ist/sind, zur Festlegung und Anpassung an Höhendifferenzen. Zusätzlich oder alternativ kann auch das Planarfilter mit einem untergesetzten Höhenausgleich versehen sein, um überstehende Teile der Anschlußstifte mit größerem Durchmesser ausgleichen zu können. Damit können auch Maßdifferenzen überbrückt werden, was insbesondere bei Nachrüstungen eine wesentliche Rolle spielt.Finally, it is advantageous if the side strips of the ground contact plate along the edge (s) of the planar filter with is / are provided with a fold to determine and adapt to height differences. In addition or as an alternative, the planar filter can also be used be provided with a level compensation below to prevent excess Compensate parts of the connecting pins with a larger diameter to be able to. This can also be used to bridge dimensional differences, which plays an important role, especially when retrofitting.

Das Wesen der Erfindung wird an Hand der in den Figuren 1 bis 9 dargestellten Ausführungsbeispielen näher erläutert; dabei zeigen

Fig. 01:
Planarfilter mit Kontakteinsätzen, Aufsicht und Seitansicht (gebrochen):
Fig. 02:
Perspektivische Schema-Darstellung eines Planarfilters mit Kontakteinsätzen:
Fig. 03:
Darstellung einer gesonderten Massekontaktplatte:
Fig. 04:
Planarfilter mit gesonderter Massekontaktplatte;
Fig. 05:
Perspektivische Ansicht eines Kontakteinsatzes;
Fig. 06:
Seitansicht und Aufsicht eines Kontakteinsatzes;
Fig. 07:
Einzelheit Ausformung der Signal-Elektrode der Kondensatoren,
  • Fig. 7a: Vergrößerte Darstellung der Signalelektrode eines Kondensators mit Doppel-Struktur, eingebettet in umgebende Kondensatoren;
  • Fig. 7b: Vergrößerte Darstellung der Signalelektrode eines Kondensators mit Doppel-T-Struktur, eingebettet in umgebende Kondensatoren;
  • Fig. 08:
    Anwendungsbeispiel eines Planarfilters in einem Steckverbinder;
    Fig. 09:
    Schnitt durch den Steckverbinder nach Fig. 8, Fig. 9a: Mit Planarfilter in Aussparung, Fig. 9b: Planarfilter nachträglich eingesetzt.
    The essence of the invention is explained in more detail with reference to the exemplary embodiments illustrated in FIGS. 1 to 9; show
    Fig. 01:
    Planar filter with contact inserts, top view and side view (broken):
    Fig. 02:
    Perspective schematic representation of a planar filter with contact inserts:
    Fig. 03:
    Representation of a separate ground contact plate:
    Fig. 04:
    Planar filter with separate ground contact plate;
    Fig. 05:
    Perspective view of a contact insert;
    Fig. 06:
    Side view and supervision of a contact insert;
    Fig. 07:
    Detail shaping of the signal electrode of the capacitors,
  • 7a: Enlarged representation of the signal electrode of a capacitor with a double structure, embedded in surrounding capacitors;
  • 7b: enlarged view of the signal electrode of a capacitor with a double-T structure, embedded in surrounding capacitors;
  • Fig. 08:
    Application example of a planar filter in a connector;
    Fig. 09:
    Section through the connector according to Fig. 8, Fig. 9a: With planar filter in recess, Fig. 9b: Planar filter inserted later.

    Die Figuren 1 und 2 zeigen eine Aufsicht und eine Seitansicht sowie eine perspektivische Schema-Ansicht eines Planarfilters 1 mit Reihen und Spalten von Durchführungsöffnungen für Anschlußstifte 11.1 (Fig. 9), wobei die in beiden Dimensionen angedeuteten Unterbrechungen der Darstellung des Planarfilters in Figur 1 andeuten, daß dieses im Grundsatz für beliebig viele Signalverbindungen einsetzbar ist. Das Planarfilter enthält für jede der Signalleitung-Durchführung mindestens einen Kondensator mit zwei Belägen, von denen einer mit der zugeordneten Signalleitung und der andere, der im allgemeinen als gemeinsame Elektrode für alle oder für Gruppen der Kondensatoren mit der Masse verbunden ist. Mit dieser Ausbildung ist dieses Planarfilter 1 geeignet, als Filter für eine Anzahl von Signalleitungen eingesetzt zu werden, die beispielsweise die Verbindungen von den Anschlußkontakten einer mit Anschlußstiften 11.1 (Fig. 9) versehenen Leiterplatte 11 (Fig. 8) über einen Steckverbinder 10 (Fig. 8) zu weiteren elektronischen Bauelementen herstellen sollen. In die Durchführungsöffnungen sind Kontakteinsätze 5 eingesetzt, die derart ausgebildet sind, daß die die elektronischen Signale führenden Anschlußstifte 11.1 (Fig. 9) in den Durchführungsöffnungen des Planarfilters 1 festlegt und zum Herstellen einer elektrischen Verbindung mit dem dem Anschlußstift zugeordneten Kondensator des Planarfilters 1 verbunden sind, wozu der die Signal-Elektrode bildende Belag in bekannter Weise bis in die Durchführungsöffnung geführt ist. Die Gegenbeläge der Kondensatoren des Planarfilters 1 sind alle gemeinsam oder gruppenweise verbunden und werden vorteilhaft zu zwei einander gegenüber liegenden metallisierten Seitenflächen 3 herausgeführt und über eine Kontaktgabe mit der allgemeinen Masse verbunden; es versteht sich von selbst, daß die Masse-Elektrode auch an alle vier Seiten des Planarfilters 1 geführt sein kann, wobei durch die Geometrie des Planarfilters gegebene, u.U. störende Selbstinduktion die Führung der Masse-Kontakte bestimmt. Vorteilhaft ist es jedoch, die Masse über die Kontaktseiten 3 des Planarfilters 1 herum auf dessen Rückseite zu führen, um eine rückwärtige Schirmung zu erreichen; dabei erscheint es selbstverständlich, daß auch die Rückseite mit Kondensator-Strukturen versehen ist, etwa um Parallel-Schaltungen für höheren Kapazitätswerte oder Serien-Schaltungen für höhere Spannungsfestigkeit zu erreichen.Figures 1 and 2 show a top view and a side view as well a perspective schematic view of a planar filter 1 with rows and splitting through openings for pins 11.1 (Fig. 9), the interruptions of the. Indicated in both dimensions Representation of the planar filter in Figure 1 indicate that this in The principle can be used for any number of signal connections. The Planar filter contains at least for each of the signal line leadthrough a capacitor with two layers, one of which with the assigned signal line and the other, generally as a common Electrode for all or for groups of capacitors is connected to the crowd. With this training, this is a planar filter 1 suitable as a filter for a number of signal lines to be, for example, the connections from the connector contacts one with pins 11.1 (Fig. 9) Printed circuit board 11 (Fig. 8) via a connector 10 (Fig. 8) to produce further electronic components. In the lead-through openings are contact inserts 5 used in this way are designed so that the pins carrying the electronic signals 11.1 (Fig. 9) in the through openings of the planar filter 1 specifies and for establishing an electrical connection with the capacitor of the planar filter assigned to the connecting pin 1 are connected, for which purpose the coating forming the signal electrode in is known in the lead-through opening. The Counter-coatings of the capacitors of the planar filter 1 are all common or connected in groups and advantageously become two to one another led out opposite metallized side surfaces 3 and connected to the general earth via a contact; it goes without saying that the ground electrode also applies to everyone four sides of the planar filter 1 can be guided, with the Given the geometry of the planar filter, possibly disturbing self-induction determines the routing of the ground contacts. However, it is advantageous the mass over the contact sides 3 of the planar filter 1 around it Lead the back to achieve a rear shielding; it goes without saying that the back also Capacitor structures is provided, such as around parallel circuits for higher ones Capacitance values or series circuits for higher dielectric strength to reach.

    Die Figuren 3 und 4 zeigen eine gesonderte Massekontaktplatte 4 sowie ein mit einer derartigen Massekontaktplatte 4 versehenes Planarfilter 1, in dessen Öffnungen für die Durchführung der Anschlußstifte Kontakteinsätze 5 eingesetzt sind. Die Massekontaktplatte 4 hat für jeden durchzuführenden Anschlußstift 11.1 (Fig. 9) eine Öffnung 4.1, deren Durchmesser hinreichend groß ist, um einen Kontakt zwischen dem Anschlußstift und der auf Masse-Potential liegenden Massekontaktplatte 4 zu unterbinden. Die seitlich überstehenden Streifen der Massekontaktplatte 4 sind hier mit einem Umbug 4.3 versehen, und sie weisen darüber hinaus schlitzartige Öffnungen 4.2 auf, durch die Befestigungsfinger 15.1 (Fig. 8) von seitlichen Schirmungen 15 (Fig. 8) zur Befestigung und zur Kontaktgabe geführt und verklemmt werden können. Das Planarfilter 1 wird so auf die Massekontaktplatte 4 aufgesetzt, daß die Achsen der Öffnungen 4.1 für die Anschlußstift-Durchführungen mit den in die Öffnungen des Planarfilters 1 zum Durchführen der Anschlußstifte 11.1 (Fig. 9) eingesetzten Kontakteinsätzen 5 fluchten.Figures 3 and 4 show a separate ground contact plate 4 and a planar filter provided with such a ground contact plate 4 1, in its openings for the implementation of the connecting pins Contact inserts 5 are used. The ground contact plate 4 has an opening for each pin 11.1 to be carried out (FIG. 9) 4.1, the diameter of which is sufficiently large to allow contact between the connecting pin and the ground contact plate which is at ground potential 4 to prevent. The laterally protruding stripes the ground contact plate 4 are provided here with a fold 4.3, and they also have slot-like openings 4.2, through the fastening fingers 15.1 (FIG. 8) of side shields 15 (Fig. 8) for attachment and for making contact and jammed can be. The planar filter 1 is thus on the ground contact plate 4 placed that the axes of the openings 4.1 for the pin bushings with the openings in the planar filter 1 used to carry out the pins 11.1 (Fig. 9) contact inserts 5 are in line.

    Die Figuren 5 und 6 zeigen Einzelheiten der Kontakteinsätze. Die perspektivische Darstellung der Figur 5 läßt die Ausformung der Kontakteinsätze 5 erkennen. Die Hülse 6, bestimmt zum etwa formschlüssigen Einsetzen in die Öffnungen zur Durchführung der Anschlußstifte 11.1 (Fig. 9) im Planarfilter 1, ist als Löthülse ausgebildet; sie weist zum besseren Formschluß beim Einsetzen einen Schlitz 6.1 auf, der auch federnd nachgeben kann und so das Einsetzen erleichtert. Die Figur 6 läßt dies in Aufsicht und Seitansicht erkennen.Figures 5 and 6 show details of the contact inserts. The perspective Representation of Figure 5 leaves the shape of the contact inserts 5 recognize. The sleeve 6, determined for the approximately positive Insert into the openings for the connection pins 11.1 (Fig. 9) in the planar filter 1, is designed as a solder sleeve; she points for a better positive fit when inserting a slot 6.1 on the can also yield resiliently, making insertion easier. The Figure 6 shows this in top view and side view.

    Die Figur 7 zeigt ein Planarfilter 1, mit von rechts nach links abgetragenen Schichtaufbau, wobei im rechten Abschnitt I die Abdekkung, im sich nach links anschließenden Abschnitt II die Signalelektroden, im weiteren Abschnitt III das Dielektricum und schließlich im Abschnitt IV die durchgehend ausgebildete Masseelektrode erkennbar sind. Dabei ist das Planarfilter 1 von einem Träger 2 schichtförmig aufgebaut, auf dem die Masse-Elektrode 2.1 ganzflächig unter Ausparung eines ringförmigen Raumes um die Durchführungs-öffnungen 1.1 für die Anschlußstifte 11.1 (Fig. 8, 9) angeordnet ist, und auf die das Dielektricum 2.2 so aufgetragen ist, daß es die Masselektrode 2.1 in den Bereichen der Durchführungsöffnungen 11.1 abdeckt, während in den Bereichen der metallisierten Ränder 3 die Masse-Elektrode 2.1 frei liegt und den Anschluß an eine allgemeine Masse erlaubt. Auf das Dielektricum 2.1 sind die Signalelektroden 2.3 paarweise beidseites jeder Durchführungsöffnung 1.1 aufgetragen und so angeordnet, daß deren in Richtung der Vorzugsachse verlaufenden Arme 2.4 mit der Metallisierung 1.2 in der Durchführungsöffnung 1.1 verbunden sind. Das Planarfilter 1 wird vor äußeren Einflüssen mit der Abdeckung 2.5 geschützt, die die Kontaktflächen an den Rändern 3 des Planarfilters 1, die den Masse-Anschluß bilden, frei läßt. Diese Strukturen werden vorteilhaft mittels bekannter Siebdruck-Verfahren erzeugt, da es damit möglich ist, die notwendige Feinheit bei wirtschaftlich vertretbarem Aufwand zu erreichen.FIG. 7 shows a planar filter 1 with those removed from right to left Layer structure, in the right section I the cover, in section II to the left, the signal electrodes, in section III the dielectric and finally the continuously formed ground electrode can be seen in section IV are. The planar filter 1 is from a carrier 2 built up in layers, on which the ground electrode 2.1 over the entire surface by cutting out an annular space around the lead-through openings 1.1 for the pins 11.1 (Fig. 8, 9) arranged is, and on which the dielectric 2.2 is applied so that it is the Ground electrode 2.1 in the areas of the lead-through openings 11.1 covers, while in the areas of the metallized edges 3 Ground electrode 2.1 is exposed and connected to a general Mass allowed. The signal electrodes are on the dielectric 2.1 2.3 applied in pairs on both sides of each lead-through opening 1.1 and arranged so that their extending in the direction of the preferred axis Arms 2.4 with the metallization 1.2 in the through opening 1.1 are connected. The planar filter 1 is exposed to external influences protected with the cover 2.5, which the contact areas on the edges 3 of the planar filter 1, which form the ground connection, free leaves. These structures are advantageous using known screen printing processes generated, since it is possible with it, the necessary To achieve fineness with economically justifiable effort.

    Die Signalelektroden 2.3 -in den Figuren 7a und 7b als Einzelheit stark vergrößert in zwei unterschiedlichen Formen dargestellt- bilden Doppel-Strukturen mit einer Vorzugsachse, die etwa einer Hantel oder einem Diabolo ähneln. Die Figur 7a zeigt eine solche Ausbildung, die unter Berücksichtigung ringförmiger Bereiche um die Anschlußstift-Durchführungen 1.1, in dem die von dem Dielektricum 2.2 abgedeckten Masse-Elektrode 2.1 (Fig. 7) ausgespart ist und der Träger 2 teilweise frei liegt, sowie des zwischen den einzelnen Signal-Elektroden 2.3 (nur im Mittelbereich bezeichnet) wegen unterschiedlicher Potentiale zur Isolation notwendigen Abstands, eine annähernd maximale Fläche ausfüllt. Die beiden, hier etwa blattförmig ausgebildeten Elektrodenflächen 2.3 sind zum Herstellen der elektrischen Verbindung mit dem Anschlußstift 11.1 (Fig. 8, 9) mit ihrem in Richtung der Vorzugsachse verlaufenden Armen 2.4 mit den Metallisierungen 1.2 der Anschlußstift-Durchführungen 1.1 verbunden. Unter dem von ihnen abgedeckten Dielektricums 2.2 (Fig. 7) befindet sich -abgesehen von einen Teil des Armes 2.4- die durchgehende Masse-Elektrode 2.1, so daß (nahezu) die gesamte Fläche zur Bildung der Kapazität beiträgt. Die Figur 7b zeigt eine Abwandlung dieser Struktur, wobei die hier ebenfalls vergrößert dargestellte Signal-Elektrode 2.3 (nur im Mittelbereich bezeichnet) eines Kondensators im Umfeld benachbarten Kondensatoren die Struktur eines Doppel-T aufweist, das die Durchführungsöffnung 1.1 für den zugeordneten Anschlußstift mittig enthält. Die den Flanschen eines Doppel-T-Profils entsprechenden Teile der Struktur bilden die Signal-Elektrode 2.3, die über die in Richtung der Vorzugsachse verlaufende Arme 2.4 mit der Metallisierung 1.2 in der Durchführungsöffnung 1.1 verbunden sind. Sie bilden zusammen mit der durch das Dielektricum getrennten Masse-Elektrode 2.1 (Fig. 7) den jeweiligen Kondensator und bestimmen dessen Kapazität. Unabhängig von der Ausbildung der den Hauptteil des Kondensators bildenden Flächen-Strukturen sind die in Richtung der Vorzugsachse verlaufenden Arme 2.4 der Struktur an die Metallisierung der Durchführungsöffnung 1.1 für den zugeordneten Anschlußstift herangeführt und über eine in diese Öffnung hineinreichende Metallisierung 1.2 mit dieser verbunden. Zur Herstellung des Kontaktes zischen Signal-Elektrode und Anschlußstift ist der Kontakteinsatz 5 in die Anschlußstift-Durchführung 1.1 eingelötet, in den der Anschlußstift 11.1 (s. Fig. 8, 9) eingeführt wird, der von den Kontaktfingern 7 (Fig. 6) des Kontakteinsatzes 5 geklemmt und damit sowohl mechanisch fixiert als auch elektrisch angeschlossen wird. Dieses Klemmen ist keine starre Fixierung, so daß durch diese Art der Befestigung das Planarfilter 1 von mechanischen Spannungen frei gehalten wird.The signal electrodes 2.3 in Figures 7a and 7b as a detail shown greatly enlarged in two different forms Double structures with a preferred axis, such as a barbell or resemble a diabolo. FIG. 7a shows such an embodiment, taking into account annular areas around the pin bushings 1.1, in which the of the dielectric 2.2 covered ground electrode 2.1 (Fig. 7) is recessed and the carrier 2 is partially exposed, and that between the individual signal electrodes 2.3 (only designated in the middle area) because of different Potentials for isolation necessary distance, approximately fills maximum area. The two, here approximately leaf-shaped Electrode surfaces 2.3 are used to manufacture the electrical Connection with the pin 11.1 (Fig. 8, 9) with your in the direction the preferred axis extending arms 2.4 with the metallizations 1.2 of the pin bushings 1.1 connected. Under the dielectric 2.2 covered by them (FIG. 7) is - apart from from part of the arm 2.4- the continuous ground electrode 2.1, so that (almost) the entire area to form the capacity contributes. FIG. 7b shows a modification of this structure, the signal electrode also shown enlarged here 2.3 (only in the middle area) of a capacitor in the area neighboring capacitors has the structure of a double T that the lead-through opening 1.1 for the associated pin in the middle contains. The corresponding to the flanges of a double T profile Parts of the structure form the signal electrode 2.3 Arms 2.4 running in the direction of the preferred axis with the metallization 1.2 are connected in the lead-through opening 1.1. they form together with the ground electrode separated by the dielectric 2.1 (Fig. 7) the respective capacitor and determine its capacitance. Regardless of the design of the main part of the capacitor Forming surface structures are those in the direction of the preferred axis extending arms 2.4 of the structure to the metallization of the Lead-through opening 1.1 brought up for the associated pin and a metallization reaching into this opening 1.2 connected to this. Hiss to make contact Signal electrode and pin is the contact insert 5 in the Terminal pin bushing 1.1 soldered into the connector pin 11.1 (see FIGS. 8, 9) is introduced, which is from the contact fingers 7 (Fig. 6) of the contact insert 5 clamped and thus both mechanically fixed as well as electrically connected. This is jamming no rigid fixation, so that with this type of attachment Planar filter 1 is kept free of mechanical stresses.

    Die Figur 8 zeigt ein mögliches Anwendungsbeispiel eines Steckverbinders 10, der auf eine Leiterplatte 11 aufgesetzt ist. Die Anschlußstifte 11.1 (Fig. 9), die in der Leiterplatte 11 etwa mittels einer Preßfit-Verbindung festgesetzt sind, sind dort mit den entsprechenden Leiterbahnen verbunden und stellen die zur Anwendung der Leiterplatte 11 notwendigen Anschlußstellen dar, die mit weiteren elektronischen Schaltungen oder Schaltelementen zu verbinden sind, wobei die Verbindung eine lösbare sein soll. Diese Lösbarkeit wird mit dem Steckverbinder 10 erzielt, der mit einem (nicht näher dargestellten) Gegenstecker zusammenwirkt. Dieser Steckverbinder wird gebildet von einer Basisplatte 12 aus Kunststoff, die mit einer der Zahl und Anordnung der Anschlußstifte 11.1 entsprechenden Anzahl von (nicht näher bezeichneten) Durchführungsöffnungen versehen ist. Seitlich sind an die Basisplatte 12 angeformte Führungsfinger 13 vorgesehen, die den einzusetzenden Gegenstecker erfassen und so führen, daß die Anschlußstifte 11.1 (Fig. 9) die Buchsen des Gegensteckers treffen und sich in diese einführen lassen. Die Basisplatte 12 weist weiter eine Aussparung 14 auf ihrer Unterseite mit einer derartige Höhe, daß das Planarfilter Platz findet, auf. Das Planarfilter ist mit einer Massekontaktplatte 4 mit Befestigungsschlitzen 4.2 versehen, über die der Massekontakt entweder zur Leiterplatte 11 oder zum Gegenstecker hergestellt wird, wobei die Masseverbindung über die Seitenschirmungen 15 läuft und auch von der Leiterplatte über diese zum Gegenstecker oder umgekehrt geführt sein kann. Die Seitenschirmungen 15 sind mit Befestigungszungen 15.1 versehen, die durch die schlitzförmigen Befestigungsöffnungen der Massekontaktplatte 4 und der Leiterplatte 11 geführt und entsprechend festgelegt sind, und von denen zumindest einige Kontaktzungen bilden, um eine sichere Erdverbindung zum Gegenstecker zu erreichen. Figure 8 shows a possible application example of a connector 10, which is placed on a circuit board 11. The connector pins 11.1 (Fig. 9) which in the circuit board 11 approximately by means of a Preßfit connection are fixed there with the corresponding Connected interconnects and provide the use of the circuit board 11 necessary connection points, which with further electronic Circuits or switching elements are to be connected, whereby the connection should be a detachable. This solvability is with the Connector 10 achieved with a (not shown) Mating connector interacts. This connector is made by a base plate 12 made of plastic with one of the number and arrangement the number of pins 11.1 corresponding to (not closer designated) through openings is provided. Are on the side molded on the base plate 12 guide fingers 13 provided grasp the mating connector to be used and guide it so that the connecting pins 11.1 (Fig. 9) meet the sockets of the mating connector and let yourself be introduced to it. The base plate 12 also has one Recess 14 on its underside with such a height that the Planar filter finds place on. The planar filter is with a ground contact plate 4 provided with mounting slots 4.2, through which the Ground contact made either to the circuit board 11 or to the mating connector the earth connection via the side shields 15 runs and also from the circuit board over this to the mating connector or vice versa. The side shields 15 are with Fastening tongues 15.1 provided through the slot-shaped fastening openings the ground contact plate 4 and the circuit board 11 are managed and determined accordingly, and at least of which form some contact tongues to ensure a safe earth connection to the mating connector to reach.

    Zwischen den Seitenabschirmungen 15 erstrecken sich rechtwinklig dazu Querabschirmungen 18, die zwischen den Paaren der Führungsfingern 13 geführt und von Kontaktnasen 18.1, die durch (nicht näher bezeichneten) Schlitze in den Seitenabschirmungen, gehalten sind. Auch die Basisplatte 12 weist vorteilhaft schlitzförmige Öffnungen zwischen den gegeneinander durch Querabschirmungen 18 getrennten Abteilungen des Steckverbinders 10 auf, die auch endständig vorgesehen sind, um den Steckverbinder 10 zu begrenzen. Die unvermeidbaren Überstände der Kontaktfinger 7 der Kontakteinsätze 5 überragen die Oberfläche des Planarfilter 1 (s. Fig. 1, 2); um diese Überstände aufnehmen zu können, sind die in der Basisplatte 12 vorgesehenen Öffnungen zur Durchführung der Anschlußstifte 11.1 von der Aussparung 14 her so ausgenommen, daß diese konusförmigen Überstände in den Träger des Planarfilters 1 von diesen Ausnehmungen aufgenommen werden.Between the side shields 15 extend at right angles also cross shields 18, which are between the pairs of guide fingers 13 guided and by contact lugs 18.1 through (not closer designated) slots in the side shields. The base plate 12 also advantageously has slot-shaped openings between those separated from one another by transverse shields 18 Departments of the connector 10, which are also provided terminal are to limit the connector 10. The inevitable Protrusions of the contact fingers 7 of the contact inserts 5 protrude beyond Surface of the planar filter 1 (see FIGS. 1, 2); around these supernatants to be able to accommodate, are provided in the base plate 12 Openings for the passage of the pins 11.1 from the recess 14 forth so that these conical projections in the carrier of the planar filter 1 from these recesses become.

    Die Figuren 9a und 9b zeigen jeweils einen Schnitt durch einen Steckverbinder 10 gemäß Figur 8. Die Basisplatte 12 ist auf der Leiterplatte 11 befestigt, wobei die Anschlußstifte 11.1 rechtwinklig zur Leiterplatte 11 stehen und durch die Basisplatte 12 des Steckverbinders 10 geführt sind; die Seitenabschirmungen 15, die Seitenabschirmung 15' der Stirnseite und die Querabschirmungen 18 bilden das Gehäuse des Steckverbinders 10. In der Figur 9a ist die Basisplatte 12 mit der Aussparung 14 versehen, so daß das Planarfilter 1 in dieser Aussparung untergebracht ist, wobei die Überstände der Kontaktfinger 7 in der konusartigen Ausnehmung 12.1 der Basisplatte 12 liegen. Die in der Figur 9b dargestellte Basisplatte 12' entspricht der derzeitigen Technik; sie weist keine Aussparung zum Einsetzen des Planarfilters 1 auf. Hier ist das Planarfilter 1 mit den Kontakteinsätzen 5 nachträglich montiert und befindet sich auf der dem Gegenstecker zugewandten Seite der Basisplatte 12'. Mit dieser Art des Einsetzens des so ausgerüsteten Planarfilters lassen sich somit auch Nachrüstungen in einfacher Weise vornehmen.Figures 9a and 9b each show a section through a connector 10 according to Figure 8. The base plate 12 is on the circuit board 11 attached, the pins 11.1 perpendicular to Printed circuit board 11 and through the base plate 12 of the connector 10 are guided; the side shields 15, the side shield 15 'of the end face and the transverse shields 18 form the housing of the connector 10. In FIG. 9a, the base plate 12 provided with the recess 14 so that the planar filter 1 in this Recess is housed, the protrusions of the contact fingers 7 lie in the cone-like recess 12.1 of the base plate 12. The Base plate 12 'shown in FIG. 9b corresponds to the current one Technology; it has no recess for inserting the planar filter 1 on. Here is the planar filter 1 with the contact inserts 5 retrofitted and is on the mating connector facing side of the base plate 12 '. With this type of insertion The planar filter equipped in this way can also be retrofitted in a simple way.

    Claims (7)

    1. Planar filter for connectors having a multiplicity of signal lines to be connected, which are arranged in rows and columns, with a carrier including for each of these signal lines an opening and in the area of this opening a capacitor with a first coating connected with the associated signal line, a second coating connected to ground via the conducting housing, as well as a layer-like dielectric between the first and second coatings, wherein a contact insert (5) having at least two contact fingers (7) for holding the connecting pins (11.1) is soldered into each of the openings of the planar filter (1) and is electrically connected with a first coating of the associated capacitor, which extends into the opening, the connecting pins (11.1) being adapted to be electrically connected via the contact fingers (7) to the first coating of the capacitors, which is associated with the respective signal electrode, and in that two edges of the planar filter, which are arranged opposite to each other, are formed as conducting lateral areas (3) connected to the ground electrodes thereof and are adapted to be connected to ground via the metallic housing (15) of the connector (10), characterized in that the first coatings of the capacitors, which are associated with the signal electrodes, are formed as dumbbell-shaped dual structures having a preferential axis and are arranged such that the preferential axes of the dual structures of the coatings of adjacent capacitors run crosswise, the linking arms of both part-structures centrally accomodating the lead-through opening for the connecting pins and being connected with the metallized portions contained in these lead-through openings.
    2. Planar filter for connectors having a multiplicity of signal lines to be connected, which are arranged in rows and columns, with a carrier including for each of these signal lines an opening and in the area of this opening a capacitor with a first coating connected with the associated signal line, a second coating connected to ground via the conducting housing, as well as a layer-like dielectric between the first and second coatings, wherein a contact insert (5) having at least two contact fingers (7) for holding the connecting pins (11.1) is soldered into each of the openings of the planar filter (1) and is electrically connected with a first coating of the associated capacitor, which extends into the opening, the connecting pins (11.1) being adapted to be electrically connected via the contact fingers (7) to the first coating of the capacitors, which is associated with the respective signal electrode, and in that two edges of the planar filter, which are arranged opposite to each other, are formed as conducting lateral areas (3) connected to the ground electrodes thereof and are adapted to be connected to ground via the metallic housing (15) of the connector (10), characterized in that the first coatings of the capacitors, which are associated with the signal electrodes, are formed as double-T-shaped dual structures having a preferential axis and are arranged such that the preferential axes of the dual structures of the coatings of adjacent capacitors run crosswise, the linking arms of both part-structures centrally accomodating the lead-through opening for the connecting pins and being connected with the metallized portions contained in these lead-through openings.
    3. Planar filter as claimed in Claim 1 or 2, fixed on a metallic ground contact plate (4), characterized in that the planar filter (1) is conductively connected with the metallic ground contact plate (4) having openings corresponding to the opening for passing through the connecting pins (11.1) of the planar filter (1) and having a diameter which, for preventing any shorts between the connecting pins (11.1) and ground, is greater than that of the lead-through openings, and which at least on one of the sides of the planar filter (1), preferably on two sides lying opposite each other, are provided with a strip-like protrusion (4.1), for connection with the contacts to be connected to ground, particularly of the metallized lateral areas of the planar filter (1) with general ground, the ground connection being preferably via the connector.
    4. Planar filter as claimed in Claim 3, characterized in that the protruding edge strip(s) (4.1) has/have openings for passing fastening fingers of the metal sheets of lateral shields therethrough.
    5. Connector having a planar filter as claimed in any one of the preceding claims, particularly intended for being mounted on printed circuit boards, including a plastic base plate provided with lateral metal shielding sheets provided with contact lugs, and provided with openings for passing connecting pins carrying the signals as well as the contact lugs of the metal shielding sheets for the connection thereof to general ground, with lateral guiding fingers being integrally moulded to the base plate, which extend at right angles relative thereto, said guiding fingers engaging in the counter-plug and guiding it in such a way that the connecting pins mate with the sockets and allow their being inserted thereinto, and being arranged with cut-outs in intervals in such a way that at least between some of the portions transverse shields may be inserted, characterized in that the side of the base plate (12), which faces the printed circuit board (11), includes a recess (14) accomodating the planar filter (1), the openings for passing through the connecting pins, which are provided in the base plate (12), flaring in a cone-shaped manner in the direction of the recess (14), the contact inserts (5) of the planar filter (1) cooperating with the connecting pins (11.1) and the ground contact plate (4) having the strip-like protrusions (4.1) cooperating with the fastening and contact fingers (15.1) of the lateral shielding sheets (15) in a clamping and contacting manner, so that the planar filter (1) is electrically through-connected with regard to the signal lines and ground, and its capacitors act as capacitances lying between the signal lines and ground.
    6. Planar filter as claimed in Claim 5, characterized in that the side strips (4.1) of the ground contact plate (4) is provided along the edge(s) (3) of the planar filter (1) with a bead (14.3) for fixing and for compensating for height differences.
    7. Planar filter as claimed in Claim 5 or 6, characterized in that the planar filter (1) is provided with height compensation means placed underneath, in order to compensate for protruding portions of the signal pins with a greater diameter.
    EP94119453A 1993-12-11 1994-12-09 Planarfilter for a connector with a plurality of terminals Expired - Lifetime EP0658955B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4342326 1993-12-11
    DE4342326A DE4342326C2 (en) 1993-12-11 1993-12-11 Planar filter for a multipole connector

    Publications (3)

    Publication Number Publication Date
    EP0658955A2 EP0658955A2 (en) 1995-06-21
    EP0658955A3 EP0658955A3 (en) 1997-03-05
    EP0658955B1 true EP0658955B1 (en) 1999-08-18

    Family

    ID=6504779

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP94119453A Expired - Lifetime EP0658955B1 (en) 1993-12-11 1994-12-09 Planarfilter for a connector with a plurality of terminals

    Country Status (4)

    Country Link
    US (1) US5603640A (en)
    EP (1) EP0658955B1 (en)
    DE (2) DE4342326C2 (en)
    ES (1) ES2136154T3 (en)

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    DE19811536C2 (en) * 1998-03-17 2000-05-18 Filtec Gmbh Filter arrangement for multipole connector
    US6385315B1 (en) * 1998-06-05 2002-05-07 Mphase Corporation Video voice separation system
    US6152780A (en) * 1999-01-04 2000-11-28 Jme Inc. Electrical connector with electrically conductive plates
    FR2836293B1 (en) * 2002-02-19 2004-05-14 Radiall Sa CONNECTION BLOCK SUITABLE FOR INSERTION IN A CAVITY OF A METAL HOUSING OF A MULTICONTACT CONNECTOR
    FI20020992L (en) * 2002-05-27 2003-11-28 Nokia Corp Component mounting structure
    JP2004172593A (en) * 2002-10-23 2004-06-17 Spectrum Control Inc Dielectric component array
    US7295086B2 (en) * 2002-10-23 2007-11-13 Spectrum Control Inc. Dielectric component array with failsafe link
    US7306490B1 (en) * 2007-04-05 2007-12-11 Delphi Technologies, Inc. High-density pass-through filter apparatus

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    CA1064118A (en) * 1975-04-28 1979-10-09 Eric E. Vander Heyden Filtered connector assembly with composite ground plane
    US4699590A (en) * 1985-10-31 1987-10-13 Amp Incorporated Modular connector assembly and filtered insert therefor
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    JP2510786Y2 (en) * 1991-06-12 1996-09-18 矢崎総業株式会社 Shield connector
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    Also Published As

    Publication number Publication date
    DE59408639D1 (en) 1999-09-23
    EP0658955A3 (en) 1997-03-05
    DE4342326A1 (en) 1995-06-22
    US5603640A (en) 1997-02-18
    ES2136154T3 (en) 1999-11-16
    DE4342326C2 (en) 1996-12-12
    EP0658955A2 (en) 1995-06-21

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