EP3224908B1 - Base strip for connection to a printed circuit board - Google Patents
Base strip for connection to a printed circuit board Download PDFInfo
- Publication number
- EP3224908B1 EP3224908B1 EP15788039.4A EP15788039A EP3224908B1 EP 3224908 B1 EP3224908 B1 EP 3224908B1 EP 15788039 A EP15788039 A EP 15788039A EP 3224908 B1 EP3224908 B1 EP 3224908B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base strip
- base
- side wall
- longitudinal direction
- strip
- 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.)
- Active
Links
- 230000005484 gravity Effects 0.000 claims description 20
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005476 soldering Methods 0.000 description 6
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010137 moulding (plastic) Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/50—Bases; Cases formed as an integral body
Definitions
- the invention relates to a base strip for connection to a printed circuit board according to the preamble of claim 1.
- Such a base strip is used for electrically connecting one or more connector elements to a printed circuit board.
- the base strip can be attached to a printed circuit board and electrically connected to the printed circuit board via suitable contact elements.
- One or more male members may be matingly engaged with the header to connect the male members to the circuit board in this manner.
- Such a baseboard has a longitudinally along a longitudinal direction extending first side wall and a longitudinally along the longitudinal direction extending second side wall.
- the side walls are spaced apart along a transverse direction transverse to the longitudinal direction, so that between the side walls a receiving space is formed into which one or more plug elements can be inserted in a plug-in direction, so that the plug elements are received in the inserted space in the receiving space.
- the side walls are interconnected by a base extending transversely between the side walls, the base having a plurality of receiving apertures for receiving electrical contact elements, e.g. Contact pins, is provided.
- Such a baseboard is conventionally manufactured in one piece from plastic.
- the preparation takes place here in a suitable plastic molding tool at elevated temperature. After removal of the workpiece from the tool, the workpiece cools down, which may be accompanied by shrinkage of material on the workpiece. If different shrinkage of material occurs at different sections of the workpiece, this can lead to distortion and deformation on the base strip produced in this way.
- a manufactured base strip can thus deviate in shape from a desired actual shape.
- curvatures can occur on individual sections of the base strip or the base strip can be bent overall.
- a base strip is in this case gripped in an automated manner by a placement machine and attached together with other components to a circuit board, wherein the components attached to the circuit board components are then soldered in a so-called reflow soldering together with the circuit board.
- the so-called through-hole reflow soldering (referred to as "THR" soldering) is used, in which plug contacts are inserted into openings on the printed circuit board.
- the object of the present invention is to provide a base strip which may have a reduced shrinkage and, associated therewith, a reduced shape deviation from a desired shape.
- the center of gravity of the base strip corresponds to the geometric center of gravity of an imaginary cuboid enveloping the base strip.
- the enveloping cuboid corresponds to a cuboid, which touches the base strip on its outer walls and envelops the base strip, analogous to the mathematical definition of an envelope.
- a cuboid is, according to the usual definition, a geometric body with six rectangular surfaces whose angles are all right angles.
- the base strip is understood to mean a (plastic) molded part to which no contact elements have yet been attached.
- the base strip is made in one piece from plastic.
- contact elements can be attached to the associated receiving openings.
- an electrical connection can be made with a printed circuit board.
- the invention is based on the surprising, empirically determined finding that by a suitable choice of the position of the center of gravity of the base strip, a deformation of the base strip can be reduced by material shrinkage.
- the geometric center of gravity of the enveloping cuboid lies at the geometric center of the cuboid.
- the center of gravity of the base strip so that the material of the base strip is evenly distributed around its geometric center.
- the insertion direction is preferably directed perpendicular to the longitudinal direction and perpendicular to the transverse direction.
- the side walls thus extend flat in parallel, spanned by the plug-in direction and the longitudinal direction planes and are transversely, ie along the transverse direction, spaced from each other.
- the base is stretched by the transverse direction and the longitudinal direction and extends transversely between side walls.
- the base strip thus has a U-shaped basic shape into which one or more plug elements can be inserted from above into the plug-in direction.
- a plurality of slots are defined, which are separated by along the insertion direction, projecting into the receiving space, along the longitudinal direction spaced apart guide webs are separated.
- a slot for a (single-pole) plug element is defined between two guide webs, it being fundamentally possible to arrange a multipolar plug element at a plurality of slots of the base strips.
- the guide webs on the inside of the first side wall extend along the insertion direction on the first side wall and protrude into the receiving space.
- the guide webs advantageously do not extend over the entire height of the receiving space, but rather, the first side wall projects outward beyond the guide webs with a head edge.
- the guide webs extending along the plug-in direction and defining the slots also contribute to the stiffening of the base strip.
- the rigidity of the base strip can be further improved by extending the first side wall with a side surface just along the longitudinal direction and thus formed as a flat surface. The result is a simple to manufacture design, the material requirements compared to conventional baseboards can be reduced.
- the base extending transversely between the side walls is also preferably flat on a floor pointing towards the receiving space. Dome can protrude from this floor into the receiving space, where receiving openings are arranged, through which electrical contact elements can be inserted. After the base strip has been produced, contact elements can be inserted, for example, into the receiving openings and pressed in a stamping manner with the receiving openings, so that after completion the contact elements are firmly connected to the base strip.
- the base on a side facing away from the receiving space on a plurality of transverse webs which extend along the transverse direction on the outside of the base and can be transversely extending over the entire width of the base, for example.
- two transverse webs can in this case receive in pairs a receiving opening between them, so that a contact element, when it is inserted into an associated receiving opening of the base strip, comes to rest between the transverse webs.
- the base strip can be brought into contact with different contact elements.
- contact elements in the form of pins can be used, which are attached along the insertion direction to the base strip and protrude along the insertion direction beyond the base on the outside of the base.
- angled contact elements in the form of L-shaped pins which are angled in the region of the outside of the base and extend with an angled portion between the transverse webs. Such an angled pin is thus guided with its angled portion between the transverse webs.
- the base bar can be attached to a circuit board in different orientations.
- the base bar in a position in which the base of the circuit board is facing be attached to an associated circuit board.
- the base bar can be attached to an associated circuit board in a position in which one of the side walls comes to rest on the circuit board.
- the transverse webs preferably have a symmetrical shape (relative to a plane of symmetry extending through the center of gravity, spanned by the longitudinal direction and the plug-in direction).
- the transverse webs contribute to the stiffening of the base bar.
- the base strip is made of a liquid-crystalline polymer (English “Liquid Crystal Polymer”, in short: LCP).
- LCP liquid-crystalline polymer
- mesogens which form molecular chains in the polymer.
- LCP has a high tensile strength and a high modulus of elasticity along its molecular axes, so that materials having excellent strength properties can be produced.
- a base strip of the type described here is designed, in particular, as a high-pole base strip, that is to say as a base strip for use with a multiplicity of contact elements, for example more than twelve contact elements.
- a base strip having twelve, twenty-four or forty-eight receiving openings for applying contact elements.
- a base strip of the type described here can also be used as a low-pole base strip with fewer than twelve receiving openings for contact elements.
- Fig. 1A-1C to Fig. 4 show an embodiment of a base strip 1, which is made in one piece from plastic, such as LCP, and can be attached to a printed circuit board 3, to allow the electrical connection of connected with connector elements 2 lines 20 to the circuit board 3.
- plastic such as LCP
- the molded as a one-piece plastic body base strip 1 has in profile (see the sectional views in accordance with FIGS. 2A and 2B ) has a substantially U-shaped basic shape with a base 10 and side walls 11, 12.
- the side walls 11, 12 extend in parallel planes and are spaced from each other along a transverse direction Q.
- the base 10 connects the side walls 11, 12 with each other and extends transversely between the side walls 11, 12th
- the base strip 1 extends longitudinally along a longitudinal direction L.
- Plug elements 2 can be inserted vertically in a plug-in direction E into a receiving space 13 formed between the side walls 11, 12, wherein a plurality of slots S are defined on the base strip 1 within the receiving space 13, can be infected to the connector elements 2.
- the side walls 11, 12 extend in parallel planes, which are respectively spanned by the insertion direction E and the longitudinal direction L.
- the base 10 in contrast extends in a plane which is spanned by the transverse direction Q and the longitudinal direction L.
- the side walls 11, 12 differ from each other.
- the side wall 11 extends with a side surface 110 substantially evenly along the longitudinal direction L, wherein inside this side surface 110 guide webs 112 are arranged, which extend longitudinally along the plug-in direction E and protrude into the receiving space 13 between the side walls 11, 12.
- the guide webs 112 serve to define slot S within the receiving space 13.
- the guide webs 112 are arranged for this purpose regularly spaced from each other on the side wall 11, wherein each slot S between two guide webs 112 is associated with a receiving opening 103 on a projecting dome 102 at a bottom 100 of the base 10.
- a contact element 14 (see Figs. 7A and 7B ) are plugged in so that it is inside protrudes into the receiving space 13 and thus can be contacted electrically with a plug element 2.
- a plug element 2 can be placed between two guide webs 112 and pushed into the receiving space 13.
- the guide webs 112 represent an encoding that causes a connector element 2 can be recognized only in the correct orientation to a desired slot S.
- the guide webs 112 extend from the bottom 100 of the base 10 almost over the entire height of the side surface 110 of the side wall 11, the side wall 11 protruding (slightly) over the guide webs 112 at a head edge 111.
- a head strip 121 is arranged on an edge remote from the bottom 100 of the base 10 and projects outwardly beyond a flat side surface 120 of the second side wall 12.
- slots for coding elements can be arranged in a conventional manner, which allow coding of the base bar so that only certain connector elements 2 (namely only those that are encoded, for example, by a corresponding Jacobcodtechnik) can be attached to the base bar 1 ,
- transverse transverse webs 104, 105 are arranged, which - viewed in the transverse direction Q - extend over the entire width of the base 10.
- two transverse webs 104, 105 enclose a receiving opening 103 between them, so that a contact element 14, when it is inserted into a receiving opening 103, comes to rest between two transverse webs 104, 105.
- the transverse webs 104, 105 are - with respect to a through the center of gravity M (see Fig. 6 ) of the base strip 1 extending and spanned by the longitudinal direction L and the insertion direction E symmetry plane - formed symmetrically on the outer side 101 of the base 10.
- the transverse webs 104, 105 in the insertion direction E are still surmounted by engagement elements 113.
- the base strip 1 can be placed in a form-fitting manner on a printed circuit board 3.
- a conventional base strip 1 which is formed of plastic in a plastic molding tool at elevated temperature, resulting from cooling after manufacture and material shrinkage occurring deformations that - as shown schematically in FIG Figs. 8A and 8B illustrates - to a curvature of the base strip 1 in the plane defined by the insertion direction E and the longitudinal direction L ( Fig. 8A , Deformation V1) and / or in the plane spanned by the transverse direction Q and the longitudinal direction L ( Fig. 8B , Deformation V2) can lead.
- Such curvatures on the base strip 1 are disadvantageous, in particular, when the base strip 1 is to be attached to a printed circuit board 3 and electrically connected to the printed circuit board 3.
- a base strip 1 for example, with its base 10 are attached to a circuit board 3, which is in Fig. 8A If the base strip 1, however, in side mounting with a side wall 11, 12 are attached to the circuit board 3, the deformation V2 is according to Fig. 8B hindrance.
- the center of gravity M of the base strip 1 is arranged where the geometric center of gravity of the base strip 1 enveloping, imaginary geometric square B is located.
- the enveloping cuboid B in this case corresponds to the smallest possible geometric cuboid into which the base strip 1 fits.
- the enveloping cuboid touches the base strip 1 on its outer sides, as can be seen from the synopsis of Fig. 5 and Fig. 6 results.
- the enveloping cuboid B has a geometric center of gravity M, corresponding to the center of gravity that results when the cuboid is assumed to be a solid body.
- This center of gravity M is also the center of gravity M of the base bar 1. This results in a balance-symmetrical distribution of material on the base 1 around the focus M around, which - was empirically determined - to an advantageous shrinkage behavior in the production of the base 1 with only slight deformations the bottom bar 1 leads.
- the base strip 1 is thus constructed and designed in its sections that just a center of gravity M results, which corresponds to the center of gravity M of the enveloping cuboid B.
- Such a construction may be performed using appropriate design software tools, e.g. CAD tools are created.
- one of the side wall 11, 12 or both side walls 11, 12 have a (slightly) conical shape.
- the thickness of a side wall 11, 12 starting from the base 10, for example, opposite to the insertion direction E thicken outwardly, the conicity may for example be in the range of 0.5 ° to 2 °, for example, at 1 °.
- the base strip 1 has advantageous shrinkage properties, comparatively small deformations on the base strip 1 result after manufacture due to shrinkage effects. This has the effect that the base strip 1 can be applied advantageously to a printed circuit board 3, for example in the context of automated assembly, and contact elements 14, which are attached to the receiving openings 103 on the base 10 of the base strip 1, via suitable soldering methods, for example the so-called Reflow soldering, can be contacted in a reliable manner with the circuit board 3 electrically.
- suitable soldering methods for example the so-called Reflow soldering
- the base strip 1 can with different contact elements 14, as in Figs. 7A and 7B is shown used.
- pin-shaped, rectilinear contact elements 14 can be attached to the receiving openings 103, as shown in FIG Fig. 7A is shown.
- Such contact elements 14 extend with a first portion 140 into the receiving space 13 of the base strip 1 and are in the insertion direction E via the base 10 to the outside.
- the base strip 1 can be attached via the base 10 to an associated printed circuit board 3, in order to be brought into engagement with associated contact openings on the printed circuit board 3 and soldered to the printed circuit board 3 to be connected.
- angled contact elements 14 can be used, as in Fig. 7B are shown. These contact elements 14 protrude with a first portion 140 into the receiving space 13 of the base strip 1, extending with an angled portion 141 outside of the receiving space 13 along the Outside 101 of the base 10 between two associated transverse webs 104, 105 and project beyond one of the side walls 11, 12 to the outside, so that the base strip 1 with this side wall 11, 12 attached to a circuit board 3 and thus lying connected to the circuit board 3 can be.
- the base strip 1 can thus be used optionally with its base 10 or with one of its side walls 11, 12 to a circuit board 3, without this being hindered by an (excessive) curvature.
- a single design of a base strip 1 can thus be used for a top assembly (via the base 10) or for side mounting (via one of the side walls 11, 12), which the manufacturing and storage costs (otherwise for the production and storage of different types of Baseboards required) can significantly reduce.
- a base strip of the type described here is advantageously designed as a high-pole base strip and therefore has, for example, more than twelve receiving openings for contact elements. In principle, however, it is conceivable to form a low-pole base strip in the manner described here.
- a baseboard of the type described here can be advantageously made of the plastic LCP.
- a base strip can also be made of other materials, in particular other plastic materials.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Description
Die Erfindung betrifft eine Grundleiste zum Verbinden mit einer Leiterplatte nach dem Oberbegriff des Anspruchs 1.The invention relates to a base strip for connection to a printed circuit board according to the preamble of
Eine derartige Grundleiste dient zum elektrischen Verbinden eines oder mehrerer Steckerelemente mit einer Leiterplatte. Die Grundleiste kann hierzu an eine Leiterplatte angesetzt und elektrisch über geeignete Kontaktelemente mit der Leiterplatte verbunden werden. Mit der Grundleiste können ein oder mehrere Steckerelemente steckend in Eingriff gebracht werden, um auf diese Weise die Steckerelemente an die Leiterplatte anzuschließen.Such a base strip is used for electrically connecting one or more connector elements to a printed circuit board. For this purpose, the base strip can be attached to a printed circuit board and electrically connected to the printed circuit board via suitable contact elements. One or more male members may be matingly engaged with the header to connect the male members to the circuit board in this manner.
Eine solche Grundleiste weist eine längs entlang einer Längsrichtung erstreckte, erste Seitenwandung und eine längs entlang der Längsrichtung erstreckte, zweite Seitenwandung auf. Die Seitenwandungen sind entlang einer quer zur Längsrichtung gerichteten Querrichtung voneinander beabstandet, so dass zwischen den Seitenwandungen ein Aufnahmeraum gebildet ist, in den ein oder mehrere Steckerelemente in eine Einsteckrichtung eingesteckt werden können, so dass die Steckerelemente in eingesteckter Stellung in dem Aufnahmeraum aufgenommen sind. Die Seitenwandungen sind über eine quer zwischen den Seitenwandungen erstreckte Basis miteinander verbunden, wobei an der Basis eine Mehrzahl von Aufnahmeöffnungen zum Aufnehmen von elektrischen Kontaktelementen, z.B. Kontaktstiften, vorgesehen ist.Such a baseboard has a longitudinally along a longitudinal direction extending first side wall and a longitudinally along the longitudinal direction extending second side wall. The side walls are spaced apart along a transverse direction transverse to the longitudinal direction, so that between the side walls a receiving space is formed into which one or more plug elements can be inserted in a plug-in direction, so that the plug elements are received in the inserted space in the receiving space. The side walls are interconnected by a base extending transversely between the side walls, the base having a plurality of receiving apertures for receiving electrical contact elements, e.g. Contact pins, is provided.
Eine solche Grundleiste wird herkömmlich einstückig aus Kunststoff hergestellt. Die Herstellung erfolgt hierbei in einem geeigneten Kunststoff-Formwerkzeug bei erhöhter Temperatur. Nach Entformen des Werkstücks aus dem Werkzeug kühlt das Werkstück ab, was mit einer Materialschwindung an dem Werkstück einhergehen kann. Kommt es dabei an unterschiedlichen Abschnitten des Werkstücks zu unterschiedlich ausgeprägter Materialschwindung, so kann dies zu einem Verzug und einer Verformung an der auf diese Weise hergestellten Grundleiste kommen.Such a baseboard is conventionally manufactured in one piece from plastic. The preparation takes place here in a suitable plastic molding tool at elevated temperature. After removal of the workpiece from the tool, the workpiece cools down, which may be accompanied by shrinkage of material on the workpiece. If different shrinkage of material occurs at different sections of the workpiece, this can lead to distortion and deformation on the base strip produced in this way.
Aufgrund von Schwindungseffekten kann eine hergestellte Grundleiste somit in der Form von einer eigentlich gewünschten Form abweichen. Insbesondere können an einzelnen Abschnitten der Grundleiste Krümmungen auftreten oder die Grundleiste kann insgesamt verbogen sein.Due to shrinkage effects, a manufactured base strip can thus deviate in shape from a desired actual shape. In particular, curvatures can occur on individual sections of the base strip or the base strip can be bent overall.
Heutzutage werden solche Grundleisten insbesondere im Rahmen einer automatisierten Bestückung von Leiterplatten eingesetzt. Eine Grundleiste wird hierbei in automatisierter Weise durch einen Bestückungsautomaten gegriffen und zusammen mit anderen Bauteilen an eine Leiterplatte angesetzt, wobei die an die Leiterplatte angesetzten Bauteile sodann in einem so genannten Reflow-Lötverfahren gemeinsam mit der Leiterplatte verlötet werden. Zum Einsatz kommt insbesondere das so genannte Through-Hole-Reflow-Löten (kurz bezeichnet als "THR"-Löten), bei dem Steckkontakte in Öffnungen an der Leiterplatte eingesetzt werden. Weist die Grundleiste hierbei jedoch aufgrund von Schwindungseffekten eine zu große Formabweichung von ihrer eigentlichen Soll-Form auf, so kann es beim Verlöten von Kontaktelementen der Grundleiste zu Fehlern und dadurch zu gegebenenfalls fehlerhaft hergestellten Lötverbindungen kommen.Today, such baseboards are used in particular in the context of automated assembly of printed circuit boards. A base strip is in this case gripped in an automated manner by a placement machine and attached together with other components to a circuit board, wherein the components attached to the circuit board components are then soldered in a so-called reflow soldering together with the circuit board. In particular, the so-called through-hole reflow soldering (referred to as "THR" soldering) is used, in which plug contacts are inserted into openings on the printed circuit board. If, however, the base strip has an excessive deviation in shape from its actual desired shape owing to shrinkage effects, soldering of contact elements of the base strip can lead to errors and thus to possibly incorrectly produced solder joints.
Dies gilt es zu vermeiden.This should be avoided.
Solche Schwindungseffekte, die zu Formveränderungen an einer Grundleiste führen können, verstärken sich noch bei hochpoligen Grundleisten, also vergleichsweise großen Grundleisten mit einer Vielzahl von Kontaktelementen, beispielsweise mehr als zwölf Kontakten.Such shrinkage effects that can lead to changes in the shape of a base bar, strengthen even in hochpoligen baseboards, ie comparatively large baseboards with a variety of contact elements, for example, more than twelve contacts.
Unterschiedlichste Bauformen von Grundleisten sind aus dem Stand der Technik bekannt und beispielsweise in der
Aufgabe der vorliegenden Erfindung ist es, eine Grundleiste zur Verfügung zu stellen, die eine reduzierte Schwindung und damit einhergehend eine reduzierte Formabweichung von einer gewünschten Form aufweisen kann.The object of the present invention is to provide a base strip which may have a reduced shrinkage and, associated therewith, a reduced shape deviation from a desired shape.
Diese Aufgabe wird durch einen Gegenstand mit den Merkmalen des Anspruchs 1 gelöst. Demnach entspricht der Schwerpunkt der Grundleiste dem geometrischen Schwerpunkt eines die Grundleiste einhüllenden, gedachten Quaders.This object is achieved by an article having the features of
Unter dem einhüllenden Quader ist in diesem Zusammenhang der kleinste (gedachte) Quader zu verstehen, der die Grundleiste vollständig einfasst. Der einhüllende Quader entspricht somit einem Quader, der die Grundleiste an ihren Außenwänden berührt und die Grundleiste einhüllt, analog der mathematischen Definition einer Einhüllenden.Under the enveloping cuboid is in this context the smallest (imaginary) cuboid to understand that completely surrounds the base bar. The enveloping cuboid thus corresponds to a cuboid, which touches the base strip on its outer walls and envelops the base strip, analogous to the mathematical definition of an envelope.
Bei einem Quader handelt es sich gemäß der üblichen Definition um einen geometrischen Körper mit sechs rechteckigen Flächen, deren Winkel alle rechte Winkel sind.A cuboid is, according to the usual definition, a geometric body with six rectangular surfaces whose angles are all right angles.
Es existiert genau ein einhüllender, gedachter Quader, also ein geometrischer Quader mit minimalem Volumen, der die Grundleiste vollständig einfasst. Der gedachte, einhüllende Quader ist insofern mathematisch exakt definiert.There is exactly one enveloping, imaginary cuboid, so a geometric cuboid with minimal volume that completely surrounds the base bar. The imaginary, enveloping cuboid is defined mathematically exactly.
Unter der Grundleiste ist in diesem Zusammenhang ein (Kunststoff-)Formteil zu verstehen, an das noch keine Kontaktelemente angesetzt sind.In this context, the base strip is understood to mean a (plastic) molded part to which no contact elements have yet been attached.
Die Grundleiste ist einstückig aus Kunststoff gefertigt. An die Grundleiste können Kontaktelemente an die zugeordneten Aufnahmeöffnungen angesetzt werden. Über solche Kontaktelemente kann eine elektrische Verbindung mit einer Leiterplatte hergestellt werden.The base strip is made in one piece from plastic. At the base bar contact elements can be attached to the associated receiving openings. About such contact elements, an electrical connection can be made with a printed circuit board.
Der Erfindung liegt die überraschende, empirisch ermittelte Erkenntnis zugrunde, dass durch geeignete Wahl der Lage des Schwerpunkts der Grundleiste eine Verformung der Grundleiste durch Materialschwindung reduziert werden kann. Dadurch, dass der Schwerpunkt der Grundleiste zumindest näherungsweise (bis auf weniger als 10% genau, vorzugsweise bis auf weniger als 1% genau, bezogen auf die Gesamtabmessungen, z.B. die Gesamtlänge, der Grundleiste) dem Schwerpunkt des einhüllenden Quaders entspricht, ergibt sich an der Grundleiste eine vorteilhafte Materialverteilung. Der geometrische Schwerpunkt des einhüllenden Quaders liegt am geometrischen Mittelpunkt des Quaders. Hier liegt auch der Schwerpunkt der Grundleiste, so dass das Material der Grundleiste gleichmäßig um ihren geometrischen Mittelpunkt herum verteilt ist.The invention is based on the surprising, empirically determined finding that by a suitable choice of the position of the center of gravity of the base strip, a deformation of the base strip can be reduced by material shrinkage. The fact that the center of gravity of the base bar at least approximately (up to less than 10% accurate, preferably to less than 1% accurate, based on the overall dimensions, eg the total length, the base bar) corresponds to the center of gravity of the enveloping cuboid, results from the Base strip an advantageous material distribution. The geometric center of gravity of the enveloping cuboid lies at the geometric center of the cuboid. Here, too, the center of gravity of the base strip, so that the material of the base strip is evenly distributed around its geometric center.
Weil sich eine gleichmäßige Schwindung um den Schwerpunkt herum einstellen kann, kommt es bei der Herstellung und insbesondere beim Abkühlen nach dem Herstellen einer Grundleiste zu reduzierten Verformungen an der Grundleiste, so dass die Grundleiste präzise entsprechend ihrer gewünschten Form gefertigt werden kann.Because a uniform shrinkage can set around the center of gravity, it comes in the manufacture and especially during cooling after making a baseboard to reduced deformation of the base bar, so that the base bar can be made precisely according to their desired shape.
Dies ermöglicht insbesondere ein sicheres, zuverlässiges Ansetzen der Grundleiste an eine Leiterplatte bei zuverlässiger Herstellung von Lötverbindungen mit an die Grundleiste angesetzten Kontaktelementen.This allows in particular a secure, reliable attachment of the base strip to a printed circuit board with reliable production of solder joints with attached to the base strip contact elements.
Die Einsteckrichtung ist vorzugsweise senkrecht zur Längsrichtung und senkrecht zur Querrichtung gerichtet. Die Seitenwandungen erstrecken sich somit flächig in parallelen, durch die Einsteckrichtung und die Längsrichtung aufgespannten Ebenen und sind quer, also entlang der Querrichtung, zueinander beabstandet. Die Basis hingegen wird durch die Querrichtung und die Längsrichtung aufgespannt und erstreckt sich quer zwischen Seitenwandungen. Die Grundleiste weist somit eine U-förmige Grundform auf, in die von oben ein oder mehrere Steckerelemente in die Einsteckrichtung eingesteckt werden können.The insertion direction is preferably directed perpendicular to the longitudinal direction and perpendicular to the transverse direction. The side walls thus extend flat in parallel, spanned by the plug-in direction and the longitudinal direction planes and are transversely, ie along the transverse direction, spaced from each other. The base, however, is stretched by the transverse direction and the longitudinal direction and extends transversely between side walls. The base strip thus has a U-shaped basic shape into which one or more plug elements can be inserted from above into the plug-in direction.
In dem Aufnahmeraum der Grundleiste sind vorzugsweise mehrere Steckplätze definiert, die durch entlang der Einsteckrichtung erstreckte, in den Aufnahmeraum vorspringende, entlang der Längsrichtung zueinander beabstandete Führungsstege voneinander getrennt sind. Zwischen zwei Führungsstegen ist hierbei beispielsweise ein Steckplatz für ein (einpoliges) Steckerelement definiert, wobei grundsätzlich möglich ist, ein mehrpoliges Steckerelement an mehreren Steckplätzen der Grundleisten anzuordnen.In the receiving space of the base strip preferably a plurality of slots are defined, which are separated by along the insertion direction, projecting into the receiving space, along the longitudinal direction spaced apart guide webs are separated. In this case, for example, a slot for a (single-pole) plug element is defined between two guide webs, it being fundamentally possible to arrange a multipolar plug element at a plurality of slots of the base strips.
Die Führungsstege innenseitig der ersten Seitenwandung erstrecken sich entlang der Einsteckrichtung an der ersten Seitenwandung und ragen in den Aufnahmeraum hinein. Die Führungsstege erstrecken sich hierbei vorteilhafterweise jedoch nicht über die gesamte Höhe des Aufnahmeraums, sondern die erste Seitenwandung steht beispielsweise mit einer Kopfkante über die Führungsstege hinaus nach außen hin vor.The guide webs on the inside of the first side wall extend along the insertion direction on the first side wall and protrude into the receiving space. However, the guide webs advantageously do not extend over the entire height of the receiving space, but rather, the first side wall projects outward beyond the guide webs with a head edge.
Die entlang der Einsteckrichtung erstreckten, die Steckplätze definierenden Führungsstege tragen auch zur Versteifung der Grundleiste bei. Die Steifigkeit der Grundleiste kann weiter dadurch verbessert werden, dass sich die erste Seitenwandung mit einer Seitenfläche eben entlang der Längsrichtung erstreckt und somit als ebene Fläche ausgebildet ist. Es ergibt sich eine einfach herzustellende Bauform, deren Materialbedarf gegenüber herkömmlichen Grundleisten reduziert sein kann.The guide webs extending along the plug-in direction and defining the slots also contribute to the stiffening of the base strip. The rigidity of the base strip can be further improved by extending the first side wall with a side surface just along the longitudinal direction and thus formed as a flat surface. The result is a simple to manufacture design, the material requirements compared to conventional baseboards can be reduced.
Die quer zwischen den Seitenwandungen erstreckte Basis ist vorzugsweise gleichfalls an einem hin zum Aufnahmeraum weisenden Boden eben ausgebildet. Von diesem Boden können Dome in den Aufnahmeraum vorstehen, an denen Aufnahmeöffnungen angeordnet sind, durch die hindurch elektrische Kontaktelemente gesteckt werden können. Nach Herstellung der Grundleiste können Kontaktelemente beispielsweise in die Aufnahmeöffnungen eingesteckt und mit den Aufnahmeöffnungen in prägender Weise verpresst werden, so dass nach Komplettierung die Kontaktelemente fest mit der Grundleiste verbunden sind.The base extending transversely between the side walls is also preferably flat on a floor pointing towards the receiving space. Dome can protrude from this floor into the receiving space, where receiving openings are arranged, through which electrical contact elements can be inserted. After the base strip has been produced, contact elements can be inserted, for example, into the receiving openings and pressed in a stamping manner with the receiving openings, so that after completion the contact elements are firmly connected to the base strip.
In einer vorteilhaften Ausführungsform weist die Basis an einer dem Aufnahmeraum abgewandten Außenseite eine Mehrzahl von Querstegen auf, die entlang der Querrichtung an der Außenseite der Basis verlaufen und quer beispielsweise über die gesamte Breite der Basis erstreckt sein können. Jeweils zwei Querstege können hierbei paarweise eine Aufnahmeöffnung zwischen sich aufnehmen, so dass ein Kontaktelement, wenn es in eine zugeordnete Aufnahmeöffnung der Grundleiste eingesteckt ist, zwischen den Querstegen zu liegen kommt.In an advantageous embodiment, the base on a side facing away from the receiving space on a plurality of transverse webs, which extend along the transverse direction on the outside of the base and can be transversely extending over the entire width of the base, for example. In each case two transverse webs can in this case receive in pairs a receiving opening between them, so that a contact element, when it is inserted into an associated receiving opening of the base strip, comes to rest between the transverse webs.
Grundsätzlich kann die Grundleiste mit unterschiedlichen Kontaktelementen in Verbindung gebracht werden. So können Kontaktelemente in Form von Stiften verwendet werden, die entlang der Einsteckrichtung an die Grundleiste angesetzt und entlang der Einsteckrichtung über die Basis hinaus an der Außenseite der Basis vorstehen. Ebenso ist aber auch denkbar, abgewinkelte Kontaktelemente in Form von L-förmigen Stiften einzusetzen, die im Bereich der Außenseite der Basis abgewinkelt sind und sich mit einem abgewinkelten Abschnitt zwischen den Querstegen erstrecken. Ein solch abgewinkelter Stift ist somit mit seinem abgewinkelten Abschnitt zwischen den Querstegen geführt.In principle, the base strip can be brought into contact with different contact elements. Thus, contact elements in the form of pins can be used, which are attached along the insertion direction to the base strip and protrude along the insertion direction beyond the base on the outside of the base. However, it is also conceivable to use angled contact elements in the form of L-shaped pins, which are angled in the region of the outside of the base and extend with an angled portion between the transverse webs. Such an angled pin is thus guided with its angled portion between the transverse webs.
Durch die Verwendung solch unterschiedlicher Kontaktelemente kann die Grundleiste in unterschiedlichen Orientierungen an eine Leiterplatte angesetzt werden. So kann die Grundleiste in einer Stellung, in der die Basis der Leiterplatte zugewandt ist, an eine zugeordnete Leiterplatte angesetzt werden. Oder die Grundleiste kann in einer Stellung, in der eine der Seitenwandungen an der Leiterplatte zu liegen kommt, an eine zugeordnete Leiterplatte angesetzt werden.By using such different contact elements, the base bar can be attached to a circuit board in different orientations. Thus, the base bar in a position in which the base of the circuit board is facing, be attached to an associated circuit board. Or the base bar can be attached to an associated circuit board in a position in which one of the side walls comes to rest on the circuit board.
Die Querstege weisen vorzugsweise eine symmetrische Gestalt (bezogen auf eine durch den Schwerpunkt verlaufende, durch die Längsrichtung und die Einsteckrichtung aufgespannte Symmetrieebene) auf. Auch die Querstege tragen zur Versteifung der Grundleiste bei.The transverse webs preferably have a symmetrical shape (relative to a plane of symmetry extending through the center of gravity, spanned by the longitudinal direction and the plug-in direction). The transverse webs contribute to the stiffening of the base bar.
In einer vorteilhaften Ausgestaltung ist die Grundleiste aus einem flüssigkristallinen Polymer (Englisch "Liquid Crystal Polymer", kurz: LCP) gefertigt. Ein solches flüssigkristallines Polymer weist sogenannte Mesogene auf, die im Polymer Molekülketten ausbilden. LCP weist insbesondere entlang seiner Molekülachsen eine hohe Zugfestigkeit und ein hohes Elastizitätsmodul auf, so dass Werkstoffe mit herausragenden Festigkeitseigenschaften hergestellt werden können.In an advantageous embodiment, the base strip is made of a liquid-crystalline polymer (English "Liquid Crystal Polymer", in short: LCP). Such a liquid-crystalline polymer has so-called mesogens which form molecular chains in the polymer. In particular, LCP has a high tensile strength and a high modulus of elasticity along its molecular axes, so that materials having excellent strength properties can be produced.
Eine Grundleiste der hier beschriebenen Art ist insbesondere als hochpolige Grundleiste, also als Grundleiste zur Verwendung mit einer Vielzahl von Kontaktelementen, beispielsweise mehr als zwölf Kontaktelementen, ausgestaltet. Beispielsweise kann eine solche Grundleiste zwölf, vierundzwanzig oder achtundvierzig Aufnahmeöffnungen zum Ansetzen von Kontaktelementen aufweisen. Grundsätzlich kann eine Grundleiste der hier beschriebenen Art aber auch als niederpolige Grundleiste mit weniger als zwölf Aufnahmeöffnungen für Kontaktelemente eingesetzt werden.A base strip of the type described here is designed, in particular, as a high-pole base strip, that is to say as a base strip for use with a multiplicity of contact elements, for example more than twelve contact elements. For example, such a base strip having twelve, twenty-four or forty-eight receiving openings for applying contact elements. In principle, however, a base strip of the type described here can also be used as a low-pole base strip with fewer than twelve receiving openings for contact elements.
Der der Erfindung zugrunde liegende Gedanke soll nachfolgend anhand der in den Figuren dargestellten Ausführungsbeispiele näher erläutert werden. Es zeigen:
- Fig. 1A
- eine Seitenansicht einer Grundleiste;
- Fig. 1B
- eine Ansicht der Grundleiste von unten;
- Fig. 1C
- eine Ansicht der Grundleiste von oben;
- Fig. 2A
- eine Schnittansicht entlang der Linie A-A gemäß
Fig. 1A ; - Fig. 2B
- eine Schnittansicht entlang der Linie B-B gemäß
Fig. 1A ; - Fig. 3
- eine ausschnittsweise Ansicht der Grundleiste von unten;
- Fig. 4
- eine ausschnittsweise Ansicht der Grundleiste von oben;
- Fig. 5
- eine Seitenansicht der Grundleiste mit einem einhüllenden Quader;
- Fig. 6
- die Schnittansicht gemäß
Fig. 2A , zusammen mit dem einhüllenden Quader; - Fig. 7A
- die Schnittansicht gemäß
Fig. 2B , mit einem in eine Aufnahmeöffnung eingesteckten Kontaktelement; und - Fig. 7B
- die Schnittansicht gemäß
Fig. 2B , mit einem anderen in die Aufnahmeöffnung einsteckten Kontaktelement.
- Fig. 1A
- a side view of a baseboard;
- Fig. 1B
- a view of the bottom bar from below;
- Fig. 1C
- a view of the baseboard from above;
- Fig. 2A
- a sectional view taken along the line AA according to
Fig. 1A ; - Fig. 2B
- a sectional view taken along the line BB according to
Fig. 1A ; - Fig. 3
- a fragmentary view of the bottom bar from below;
- Fig. 4
- a fragmentary view of the baseboard from above;
- Fig. 5
- a side view of the base bar with an enveloping cuboid;
- Fig. 6
- the sectional view according to
Fig. 2A , together with the enveloping cuboid; - Fig. 7A
- the sectional view according to
Fig. 2B with a contact element inserted in a receiving opening; and - Fig. 7B
- the sectional view according to
Fig. 2B , with another in the receiving opening plugged contact element.
Die als einstückiger Kunststoffkörper geformte Grundleiste 1 weist im Profil (siehe die Schnittansichten gemäß
Die Grundleiste 1 erstreckt sich längs entlang einer Längsrichtung L. Steckerelemente 2 können in einer Einsteckrichtung E senkrecht in einen zwischen den Seitenwandungen 11, 12 gebildeten Aufnahmeraum 13 eingesteckt werden, wobei an der Grundleiste 1 innerhalb des Aufnahmeraums 13 eine Mehrzahl von Steckplätzen S definiert sind, an die Steckerelemente 2 angesteckt werden können.The
Die Seitenwandungen 11, 12 erstrecken sich in parallelen Ebenen, die jeweils durch die Einsteckrichtung E und die Längsrichtung L aufgespannt sind. Die Basis 10 demgegenüber erstreckt sich in einer Ebene, die durch die Querrichtung Q und die Längsrichtung L aufgespannt ist.The
Die Seitenwandungen 11, 12 unterscheiden sich voneinander.The
So erstreckt sich die Seitenwandung 11 mit einer Seitenfläche 110 im Wesentlichen eben entlang der Längsrichtung L, wobei innenseitig dieser Seitenfläche 110 Führungsstege 112 angeordnet sind, die sich längs entlang der Einsteckrichtung E erstrecken und in den Aufnahmeraum 13 zwischen den Seitenwandungen 11, 12 hineinragen.Thus, the
Die Führungsstege 112 dienen dazu, Steckplätz S innerhalb des Aufnahmeraums 13 zu definieren. Die Führungsstege 112 sind hierzu regelmäßig zueinander beabstandet an der Seitenwandung 11 angeordnet, wobei jedem Steckplatz S zwischen zwei Führungsstegen 112 eine Aufnahmeöffnung 103 an einem vorstehenden Dom 102 an einem Boden 100 der Basis 10 zugeordnet ist. In die Aufnahmeöffnung 103 kann ein Kontaktelement 14 (siehe
Dadurch, dass die Führungsstege 112 längs entlang der Einsteckrichtung E erstreckt sind, kann ein Steckerelement 2 zwischen zwei Führungsstege 112 gesetzt und in den Aufnahmeraum 13 geschoben werden. Die Führungsstege 112 stellen eine Codierung dar, die bewirkt, dass ein Steckerelement 2 nur in richtiger Orientierung an einen gewünschten Steckplatz S angesetzt werden kann.Characterized in that the
Die Führungsstege 112 erstrecken sich ausgehend von dem Boden 100 der Basis 10 nahezu über die gesamte Höhe der Seitenfläche 110 der Seitenwandung 11, wobei die Seitenwandung 11 an einer Kopfkante 111 (geringfügig) über die Führungsstege 112 übersteht.The
An der gegenüberliegenden, zweiten Seitenwandung 12 ist an einer vom Boden 100 der Basis 10 abliegenden Kante eine Kopfleiste 121 angeordnet, die nach außen hin über eine ebene Seitenfläche 120 der zweiten Seitenwandung 12 vorsteht. An dieser Kopfleiste 121 können in an sich bekannter Weise Steckplätze für Codierelemente angeordnet sein, die eine Codierung der Grundleiste derart ermöglichen, dass nur bestimmte Steckerelemente 2 (nämlich nur solche, die z.B. durch eine entsprechende Gegencodierung codiert sind) an die Grundleiste 1 angesetzt werden können.On the opposite,
An einer dem Aufnahmeraum 13 abgewandten Außenseite der Basis 10 sind querverlaufende Querstege 104, 105 angeordnet, die sich - betrachtet in Querrichtung Q - über die gesamte Breite der Basis 10 erstrecken. Jeweils zwei Querstege 104, 105 fassen hierbei eine Aufnahmeöffnung 103 zwischen sich ein, so dass ein Kontaktelement 14, wenn es in eine Aufnahmeöffnung 103 eingesteckt ist, zwischen zwei Querstegen 104, 105 zu liegen kommt.On a side facing away from the receiving
Die Querstege 104, 105 sind - mit Bezug auf eine durch den Schwerpunkt M (siehe
Durch ihre Formgebung mit den entlang der Einsteckrichtung E längs erstreckten Führungsstegen 112, den ebenen Seitenflächen 110, 120 der Seitenwandungen 11,12 und den quer erstreckten Querstegen 104, 105 außenseitig der Basis 10 ergibt sich insgesamt eine Grundleiste mit hoher Steifigkeit.By their shape with the along the insertion direction E longitudinally extending
Wie aus
Bei einer herkömmlichen Grundleiste 1, die aus Kunststoff in einem Kunststoff-Formwerkzeug bei erhöhter Temperatur geformt wird, ergeben sich aufgrund Abkühlung nach dem Herstellen und dabei auftretender Materialschwindung Verformungen, die - wie schematisch in
Um demgegenüber bei der Grundleiste 1 gemäß der vorliegenden Erfindung ein vorteilhaftes Schwindungsverhalten zu erhalten, ist der Schwerpunkt M der Grundleiste 1 dort angeordnet, wo der geometrische Schwerpunkt eines die Grundleiste 1 einhüllenden, gedachten geometrischen Quaders B liegt. Der einhüllende Quader B entspricht hierbei dem kleinstmöglichen geometrischen Quader, in den die Grundleiste 1 hineinpasst. Der einhüllende Quader berührt die Grundleiste 1 an ihren Außenseiten, wie sich dies aus der Zusammenschau von
Der einhüllende Quader B weist einen geometrischen Schwerpunkt M auf, entsprechend dem Schwerpunkt, der sich ergibt, wenn man den Quader als massiven Körper annimmt. An diesem Schwerpunkt M liegt auch der Schwerpunkt M der Grundleiste 1. Hierdurch ergibt sich eine schwerpunktsymmetrische Materialverteilung an der Grundleiste 1 um den Schwerpunkt M herum, was - so wurde empirisch ermittelt - zu einem vorteilhaften Schwindungsverhalten bei der Herstellung der Grundleiste 1 unter nur geringen Verformungen der Grundleiste 1 führt.The enveloping cuboid B has a geometric center of gravity M, corresponding to the center of gravity that results when the cuboid is assumed to be a solid body. This center of gravity M is also the center of gravity M of the
Die Grundleiste 1 ist somit so konstruiert und in ihren Abschnitten konzipiert, dass sich gerade ein Schwerpunkt M ergibt, der dem Schwerpunkt M des einhüllenden Quaders B entspricht. Eine solche Konstruktion kann unter Verwendung geeigneter Konstruktions-Softwarewerkzeuge, z.B. CAD-Werkzeuge, erstellt werden.The
Um die Materialverteilung der Grundleiste 1 zu beeinflussen, können beispielsweise eine der Seitenwandung 11, 12 oder beide Seitenwandungen 11, 12 eine (geringfügig) konische Form aufweisen. So kann sich die Dicke einer Seitenwandung 11, 12 ausgehend von der Basis 10 beispielsweise entgegen der Einsteckrichtung E nach außen hin verdicken, wobei die Konizität beispielsweise im Bereich von 0,5° bis 2°, beispielsweise bei 1° liegen kann.To influence the material distribution of the
Weil die Grundleiste 1 vorteilhafte Schwindungseigenschaften aufweist, ergeben sich nach der Herstellung vergleichsweise geringe Verformungen an der Grundleiste 1 aufgrund von Schwindungseffekten. Dies bewirkt, dass die Grundleiste 1 in vorteilhafter Weise beispielsweise im Rahmen einer automatisierten Bestückung an eine Leiterplatte 3 angesetzt werden kann und Kontaktelemente 14, die an die Aufnahmeöffnungen 103 an der Basis 10 der Grundleiste 1 angesetzt sind, über geeignete Lötverfahren, beispielsweise das so genannte Reflow-Löten, in zuverlässiger Weise mit der Leiterplatte 3 elektrisch kontaktiert werden können.Because the
Die Grundleiste 1 kann mit unterschiedlichen Kontaktelementen 14, wie in
So können an die Aufnahmeöffnungen 103 stiftförmige, geradlinige Kontaktelemente 14 angesetzt werden, wie dies in
Alternativ können aber auch abgewinkelte Kontaktelemente 14 zum Einsatz kommen, wie sie in
Weil sich bei der Grundleiste 1 ein vorteilhaftes Schwindungsverhalten einstellt, sind Verformungen sowohl in der durch die Einsteckrichtung E und die Längsrichtung L aufgespannten Ebene (
Der der Erfindung zugrunde liegende Gedanke ist nicht auf die vorangehend geschilderten Ausführungsbeispiele beschränkt, sondern lässt sich grundsätzlich auch in gänzlich anders gearteter Weise verwirklichen.The idea underlying the invention is not limited to the embodiments described above, but can in principle also be realized in a completely different kind of way.
Eine Grundleiste der hier beschriebenen Art ist vorteilhafterweise als hochpolige Grundleiste ausgebildet und weist demzufolge beispielsweise mehr als zwölf Aufnahmeöffnungen für Kontaktelemente auf. Grundsätzlich ist aber denkbar, eine niederpolige Grundleiste auf die hier beschriebene Weise auszubilden.A base strip of the type described here is advantageously designed as a high-pole base strip and therefore has, for example, more than twelve receiving openings for contact elements. In principle, however, it is conceivable to form a low-pole base strip in the manner described here.
Eine Grundleiste der hier beschriebenen Art kann vorteilhaft aus dem Kunststoff LCP hergestellt werden. Grundsätzlich kann eine Grundleiste aber auch aus anderen Materialien, insbesondere anderen Kunststoffmaterialien, hergestellt werden.A baseboard of the type described here can be advantageously made of the plastic LCP. In principle, however, a base strip can also be made of other materials, in particular other plastic materials.
- 11
- Grundleistebase strip
- 1010
- BasisBase
- 100100
- Bodenground
- 101101
- Außenseiteoutside
- 102102
- Domcathedral
- 103103
- Öffnungopening
- 104, 105104, 105
- Querstegcrosspiece
- 1111
- Seitenwandungsidewall
- 110110
- Seitenflächeside surface
- 111111
- Kopfkantehead edge
- 112112
- Führungsstegguide web
- 113113
- Eingriffselementeengaging members
- 1212
- Seitenwandungsidewall
- 120120
- Seitenflächeside surface
- 121121
- Kopfleisteheader
- 1313
- Aufnahmeraumaccommodation space
- 1414
- Kontaktelementcontact element
- 140, 141140, 141
- Abschnittsection
- 22
- Steckerelementeplug elements
- 2020
- Leitungmanagement
- 33
- Leiterplattecircuit board
- BB
- Einhüllender QuaderEnveloping cuboid
- Ee
- Einsteckrichtunginsertion
- LL
- Längsrichtunglongitudinal direction
- MM
- MittelpunktFocus
- Querrichtungtransversely
- SS
- Steckplatzslot
- V1, V2V1, V2
- Verformungdeformation
Claims (12)
- Base strip (1) for connection to a printed circuit board (3), comprising- a first side wall (11) which extends longitudinally along a longitudinal direction (L),- a second side wall (12) which extends longitudinally along the longitudinal direction (L) and is at a distance from the first side wall (11) along a transverse direction (Q) which is directed transversely in relation to the longitudinal direction (L), so that a receiving space (13) is formed between the side walls (11, 12), it being possible for one or more plug elements (2) to be inserted into the said receiving space in an insertion direction (E), and- a base (10) which connects the first side wall (11) and the second side wall (12) to one another and has a plurality of receiving openings (103) for receiving electrical contact elements (14),characterized
in that the base strip is manufactured in one piece from plastic, and in that the centre of gravity (M) of the base strip (1) corresponds to the geometric centre of gravity of an imaginary cuboid (B) which envelops the base strip. - Base strip (1) according to Claim 1, characterized in that the insertion direction (E) is directed perpendicularly in relation to the longitudinal direction (L) and perpendicularly in relation to the transverse direction (Q).
- Base strip (1) according to Claim 1 or 2, characterized in that a plurality of guide webs (112) which extend along the insertion direction (E), project into the receiving space (13) and are spaced apart in relation to one another along the longitudinal direction are arranged on the first side wall (11).
- Base strip (1) according to Claim 3, characterized in that two guide webs (112), as viewed in the longitudinal direction (L), define between them an insertion slot (S1) into which a plug element (2) can be inserted in the insertion direction (E).
- Base strip (1) according to Claim 3 or 4, characterized in that the first side wall (11), by way of a top edge (111), protrudes beyond the guide webs (112) against the insertion direction (E) on a side which is averted from the base (10).
- Base strip (1) according to one of the preceding claims, characterized in that the first side wall (11), by way of a side face (110), extends flat along the longitudinal direction (L).
- Base strip (1) according to one of the preceding claims, characterized in that the base (11), on an inner side which faces the receiving space (13), has a floor (100) which is of flat design.
- Base strip (1) according to Claim 7, characterized in that a plurality of domes (102) protrude from the floor (100) into the receiving space (13), wherein a receiving opening (103) for a contact element (14) is arranged on each dome (102).
- Base strip (1) according to one of the preceding claims, characterized in that the base (10), on an outer side (101) which is averted from the receiving space (13), is fitted with a plurality of transverse webs (104, 105) which extend along the transverse direction (Q), wherein a receiving opening (103) is arranged between two transverse webs (104, 105).
- Base strip (1) according to Claim 9, characterized in that the transverse webs (104, 105), as viewed along the transverse direction (Q), extend beyond the total width of the base (10).
- Base strip (1) according to one of the preceding claims, characterized in that the base strip (1) is produced from a liquid-crystalline polymer.
- Base strip (1) according to one of the preceding claims, characterized in that the base strip (1) has twelve or more receiving openings (103).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014117233.7A DE102014117233B4 (en) | 2014-11-25 | 2014-11-25 | Base strip for connecting to a printed circuit board |
PCT/EP2015/075413 WO2016083079A1 (en) | 2014-11-25 | 2015-11-02 | Base strip for connection to a printed circuit board |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3224908A1 EP3224908A1 (en) | 2017-10-04 |
EP3224908B1 true EP3224908B1 (en) | 2019-01-02 |
Family
ID=54365255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15788039.4A Active EP3224908B1 (en) | 2014-11-25 | 2015-11-02 | Base strip for connection to a printed circuit board |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170346207A1 (en) |
EP (1) | EP3224908B1 (en) |
CN (1) | CN107004981B (en) |
DE (1) | DE102014117233B4 (en) |
WO (1) | WO2016083079A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102017003159A1 (en) * | 2017-03-31 | 2018-10-04 | Yamaichi Electronics Deutschland Gmbh | Contact pin plug and method of making a contact pin plug |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0299583U (en) * | 1989-01-27 | 1990-08-08 | ||
DE9004833U1 (en) | 1990-04-28 | 1990-07-05 | Bach Gmbh + Co, 7100 Heilbronn | Connectors |
US5658154A (en) | 1995-06-07 | 1997-08-19 | Molex Incorporated | Printed circuit board mounted electrical connector |
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2014
- 2014-11-25 DE DE102014117233.7A patent/DE102014117233B4/en active Active
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2015
- 2015-11-02 WO PCT/EP2015/075413 patent/WO2016083079A1/en active Application Filing
- 2015-11-02 EP EP15788039.4A patent/EP3224908B1/en active Active
- 2015-11-02 US US15/528,766 patent/US20170346207A1/en not_active Abandoned
- 2015-11-02 CN CN201580065200.8A patent/CN107004981B/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
DE102014117233B4 (en) | 2018-03-01 |
CN107004981A (en) | 2017-08-01 |
EP3224908A1 (en) | 2017-10-04 |
DE102014117233A1 (en) | 2016-05-25 |
US20170346207A1 (en) | 2017-11-30 |
WO2016083079A1 (en) | 2016-06-02 |
CN107004981B (en) | 2021-02-05 |
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