EP1436860B1 - Device for connecting and contacting a printed circuit board and plug - Google Patents

Abstract

The invention relates to a device (1) for mechanically connecting and electrically contacting a printed circuit board (2) to at least two electrical conductors (5a, 5b), comprising a first plug part (3) that is fixed to the printed circuit board (2), at least two first electrical contact elements (6a, 6b), which are assigned to the first plug part (3) and which are connected in an electrically conductive manner to at least one electrical component (18) on the printed circuit board (2). The inventive device also comprises a second plug part (4), which corresponds with the first plug part (3) and is mechanically connected to the electrical conductors (5a, 5b), and comprises at least two second contact elements (7a, 7b), which correspond with the first contact elements (6a, 6b) and are connected in an electrically conductive manner to the electrical conductors (5a, 5b). This results in improving the mechanical connection and electrical contacting of a printed circuit board to at least two electrical conductors.

Description

The invention relates to a device for mechanically connecting and electrically contacting a printed circuit board with at least two electrical conductors and a plug.

To the mechanical connection and electrical contacting of a printed circuit board with electrical conductors, a plurality of demands are made. On the one hand it requires a secure contact in order to ensure a reliable electrical supply in functional operation. For the same reason, a secure mechanical connection is required to ensure electrical contact. Furthermore, it requires a special embodiment of the device in order to achieve a small and space-favorable design taking into account the design of a printed circuit board, which allows a space-favorable integration into electrical consumers. In addition, a simple and fast mechanical connection and electrical contact is required, which is easy to handle and quick to assemble or disassemble. It is further to be considered that the present device is a typical mass-produced product which is intended, on the one hand, to ensure versatile use and, on the other hand, to ensure simple, rapid and cost-effective production.

The invention is therefore based on the object to improve the mechanical connection and electrical contacting of a printed circuit board with at least two electrical conductors in a device of the present type.

Document US-A-5 788 539 discloses a device according to the preamble of claim 1.

This object is solved by the features of claim 1. Advantageous developments of the invention are described in the subclaims.

In the device according to the invention is ensured by the mechanical connections between the connector parts and the conductors and the circuit board and the electrical contact between the first and the second contact element and the electrical connection between the contact elements and the circuit board and the conductors a secure cohesion between the connector parts , which also ensures a secure electrical contact between the contact elements due to its sufficient strength. This proves to be a simple way the device as a mechanical support for the circuit board or vice versa, so that it requires no further attachment of the circuit board or the second connector part to an additional holder. Of course, this does not exclude that in the presence of a large circuit board, this can be additionally held and supported or the second plug part can be additionally held.

The device according to the invention is particularly well suited for an electrical supply of light-emitting diodes (LEDs) which are arranged on printed circuit boards as light-emitting diode carriers. LEDs have the advantage of a very long life, so that the requirements for electrical contacting and mounting can increase. These requirements are well met by the invention, wherein a cutting / Klemmkontaktierung preferably for contacting the first and second contact elements, which ensures a secure contact even with a long service life and can be easily and quickly mounted. In addition, the device according to the invention is advantageously also for outdoor applications in which considerable temperature fluctuations can occur and measures against the ingress of moisture (weather, condensate, etc.) are to be provided in the device. The assembly can be carried out on site easily and quickly as well as easy to handle, whereby no special previous knowledge is required.

The device according to the invention or a lighting system comprising a device according to the invention is very advantageously suitable for illuminating display or advertising surfaces on the inside, the illuminating system according to the invention being or being arranged in the cavity of a luminous object having at least one advertising or display surface. Also for such a use, the lighting system is suitable because of its contact reliability, long life, and easy and easy mountability or disassembly even in hard to reach locations or. Light object housings very beneficial. The lighting system is also advantageous with respect to the arrangement and design of its components, regardless of claim 1.

For mechanical connection between the plug parts is a plug-in device with a plug-in pin on one plug part and a plug-in recess on the other plug part is excellent. By a clamping or latching device, the plug-in connection can be stabilized in the assembled state, so that the plug-in device is suitable for receiving and transmitting mechanical loads, without the risk of unintentional release of the plug-in device. Such mechanical stability also contributes to the stability and safety of the electrical contact, since the mechanical Strength of the connector the electrical contacting of mechanical loads freistellt.

The axial direction of the plug parts or the plug connection is preferably arranged transversely to a plane containing at least two electrical conductors. It is advantageous to arrange the circuit board parallel to the axial direction of the electrical conductors. This leads to a small and space-saving design that can be conveniently integrated into existing building systems.

For larger areas, the circuit boards can of course also be arranged at right angles to the axial direction of the electrical conductors.

For realizing at least one electric circuit, at least two electrical conductors are provided. Depending on the level of the voltage, this may be one or more insulated or non-insulated conductor wires, for example standard wires or a raster / line cable.

When the electrical contact can be a two- or Mehrpolkontaktierung. The latter, for example, if at least one control line to be realized.

The contacting of the first connector part with the circuit board can be done by SMD technology, press-fitting or by means of solder pin.

For an electrical contact a clamp connection and in particular an insulation displacement connection is particularly well. In this case, a contact element or both contact elements can have insulation displacement slots. Preferably, the transverse webs, the cutting / clamping edges having contact webs are formed so that they enclose an acute angle between them.

In order to obtain a simple and inexpensive to manufacture and mountable construction, it is advantageous that the electrical conductors associated plug part to form by two half-shells which are composable with respect to the electrical conductors from both opposite sides and connectable to each other. This makes it possible to achieve a simple and stable connection with the conductors and indeed a moisture-proof connection. This can be achieved by sealing the dividing joint. Other measures for an advantageous and optionally moisture-proof connection of the half-shells are welding, in particular ultrasonic welding, gluing, jamming or latching together or Pressing. Another measure for producing a connection which is less susceptible to moisture is to coat one or both plug parts with an insulating layer, for example a lacquer, which is severed during assembly by the cutting contact so that electrical contact is ensured.

Alternatively, at least one of the two connector parts can be produced by encapsulation of the metallic components, for example with PVC. Thus, then there is a one-piece connector housing.

It is advantageous to assign at least one matching blind plug to at least one plug-in recess, the provision of which makes it possible to close an unused plug-in recess, for example, moisture-proof.

In the presence of a latchable in the assembled state plug-in device, it is advantageous to form the latching device so that it can be felt and / or audibly latched. This allows the user to receive the confirmation that a secure contact has been made when mating.

The invention further relates to connectors for electrically contacting electrical conductors, comprising a first connector part, at least two first electrical contact elements associated with the first connector part, and a second connector part corresponding to the first connector part, which is mechanically connected to electrical conductors and at least two Having the first contact elements corresponding second contact elements which are electrically connected to the electrical conductors, wherein for contacting the first and second contact elements cutting / clamping contacts are provided. Such a connector can be used for contacting printed circuit boards as stated above, but also for other applications.

In further subclaims features are included, which help to achieve a small, easy to produce and mountable or disassemblable and thus cost-effective embodiments.

Further claim features improve the mechanical connection between the plug parts and / or between the half-shells forming a plug part and / or between the plug parts and the contact elements or the conductors or the printed circuit board and / or improve the electrical contact between the contact elements and the electrical conductors or the circuit board.

Figur 1

eine erfindungsgemäße Vorrichtung zum mechanischen Verbinden und elektrischen Kontaktieren einer Leiterplatte mit wenigstens zwei elektrischen Leitern in perspektivischer Seitenansicht, insbesondere für ein Leuchtmittelsystem zum rückseitigen Beleuchten von Werbe- oder Anzeigeflächen;

Figur 2

die Vorrichtung bei gelöster Steckverbindung;

Figur 3

ein erstes Steckerteil in perspektivischer Draufsicht;

Figur 4

zwei Kontaktelemente des ersten Steckerteils in perspektivischer Ansicht;

Figur 5

die Vorrichtung ohne Leiterplatte in der Draufsicht;

Figur 6

den Schnitt VI - VI in Figur 5

Figur 7

den Schnitt VII - VII in Figur 6;

Figur 8

ein zweites Kontaktelement in perspektivischer Darstellung;

Figur 9

eine Leiterplatte und ein zugehöriges Steckerteil in abgewandelter Ausgestaltung;

Figur 10

eine erfindungsgemäße Vorrichtung bei gelöster Steckverbindung in abgewandelter Ausgestaltung;

Figur 11

eine erfindungsgemäße Vorrichtung in weiter abgewandelter Ausgestaltung;

Figur 12

eine erfindungsgemäße Vorrichtung in weiter abgewandelter Ausgestaltung

Figur 13

eine erfindungsgemäßes Leuchtmittelsystem mit einer Mehrzahl Vorrichtungen zum mechanischen Verbinden und elektrischen Kontaktieren einer Leiterplatte oder anderer Steckerteile mit wenigstens zwei elektrischen Leitern in perspektivischer Seitenansicht.

Advantageous embodiments of the invention will be explained in more detail below with reference to preferred exemplary embodiments and drawings. Show it

FIG. 1

a device according to the invention for mechanically connecting and electrically contacting a printed circuit board with at least two electrical conductors in a perspective side view, in particular for a lighting system for back lighting of advertising or display surfaces;

FIG. 2

the device with dissolved connector;

FIG. 3

a first connector part in a perspective plan view;

FIG. 4

two contact elements of the first connector part in a perspective view;

FIG. 5

the device without circuit board in plan view;

FIG. 6

the section VI - VI in Figure 5

FIG. 7

the section VII - VII in Figure 6;

FIG. 8

a second contact element in a perspective view;

FIG. 9

a printed circuit board and an associated plug part in a modified embodiment;

FIG. 10

an inventive device with dissolved connector in a modified embodiment;

FIG. 11

a device according to the invention in a further modified embodiment;

FIG. 12

a device according to the invention in a further modified embodiment

FIG. 13

an inventive lighting system with a plurality of devices for mechanically connecting and electrically contacting a circuit board or other connector parts with at least two electrical conductors in a perspective side view.

The main parts of the apparatus designated in its entirety by 1 are a printed circuit board 2, a first plug part 3 fixed thereto, a second plug part 4 corresponding thereto, which is connected to at least two electrical conductors 5a, 5b, and at least two first and at least two second contact elements 6a, 6b, 7a, 7b of which two are arranged in the associated plug part 3, 4 and in the assembled state of the plug parts 3, 4 correspond to each other and are in contact. The printed circuit board 2 carries, for example, on at least one broad side electrical components 8, which may be, for example, to light-emitting diodes or LEDs having filament.

In the embodiment of Figure 1, the components 8 are arranged on the side facing away from the second connector part 4 wide side.

In the plug parts 3, 4 receiving chambers 9a, 9b, 11a, 11b for the contact elements 6a, 6b, 7a, 7b are arranged. In the exemplary embodiment, two or more electrical conductors 5a, 5b, for example in the form of a non-insulated conductor wire or a conductor wire insulated by an insulating layer, and two pairs of contact elements 6a, 7a and 6b, 7b, which are electrically conductive with the associated conductors 5a, 5b are connected.

In the embodiment, both the contact between the contact elements 6a, 6b, 7a, 7b and the contact with the conductor wires 5a, 5b are each formed by cutting / clamping contacts. In this case, only one contact element has two spaced apart by a slot 12 contact arms 13 which engage over a contact web 14 of the corresponding contact element and clamp between them or two contact arms 13 in the region of a slot 12 on the corresponding contact element overlap so that the mutually corresponding contact arms 13 in Area of the slots 12 are adjacent to each other. At the inner slot edges of the contact elements consisting of flat material 13 extending cutting edges 15 are arranged in the longitudinal direction of the contact arms, which may be special cutting edges or formed by, for example, formed by punching edges of the contact arms 13.

The contact elements 7a, 7b of the second plug part 4 also have at their ends facing the conductor wires 5a, 5b preferably also contact arms 13 each spaced apart by a slot 12, each having at least one cutting edge 15 for contacting the conductor wires 5a, 5b. These contact elements are designated 17a, 17b. The contact elements 7a, 7b and the contact elements 17a, 17b are preferably integrally formed on contact element parts 17c, which are arranged in the associated receiving chambers 11a, 11b and are preferably held in a form-fitting manner therein. This also applies to the corresponding contact element parts 16c, which have contact elements 6a, 6b at their one end and contact elements 16a, 16b at their other ends and are arranged in the associated receiving chambers 9a, 9b.

As FIG. 4 shows by way of example, the contact element parts 16c can be formed by angle parts, one leg of which forms the contact elements 6a, 6b and the other leg respectively forms the contact element 16a, 16b. The associated receiving chambers 9a, 9b extend longitudinally through the first plug part 3, wherein they each emanate from a recess 9c on the foot side of the plug part 3. The recess 9c is dimensioned so large that the associated contact element 16a, 16b can be arranged sunk therein. For electrical contact connection of the contact elements 16a, 16b, electrical conductors, for example in the form of strip conductors, are provided on the contact side 2a of the printed circuit board, which each extend to associated electrical components 8, which are on the same side, namely the contact side 2a of the printed circuit board 2 or on the opposite side of the printed circuit board 2, in which case the electrical conductors extend through the printed circuit board 2. The included between the legs 14 and 16 a and 16 b angle W 1 is preferably dimensioned slightly larger than 90 °, for example about 95 °, whereby the electrical contact with the circuit board 2 is improved. The attachment of the first connector part 3 on the contact side 2a of the circuit board 2 can be done for example by gluing, the connector part 3 may have a flange 19 integrally formed on its base side, which rests against the contact side 2a. The contact element parts 16 c are to be inserted from the foot side into the receiving chambers 9 a, 9 b before the fastening of the plug part 3. After attachment, the contact element parts 16c are held in a form-fitting manner in the receiving chambers 9a, 9b. The contact elements 6a, 6b are preferably formed by narrow webs 14, which are each in a plane perpendicular to the electrical conductors 5a, 5b extending plane.

If a plurality of electrical conductors 5a, 5b are provided, the plug connection designated by 21 is for the contact elements 6a, 6b, 7a, 7b and for the plug parts 3, 4 between the outer conductors, here between the conductors 5a, 5b, arranged. In order to enable a space-favorable contact arrangement with the contact elements 6a, 6b, the contact elements 17a, 17b with respect to the contact elements 7a, 7b or the receiving chambers 9a, 9b or 11a, 11b along or transverse to the central axes 5c of the conductors 5a, 5b to the offset dimensions a and b offset from one another, wherein the offset dimension b corresponds to half the distance c of the central axes 5c of the conductors 5a, 5b. In the exemplary embodiment, the base web 17d with which the contact elements 7a, 7b, 17a, 17b forming contact webs 17e, 17f U-shaped extending with respect to the central axis 5c of the associated conductor 5a, 5b obliquely.

Like the contact element parts 16c, the contact element parts 17c are also identical parts and twisted by 180 ° relative to one another in their position mounted in the plug part 4, so that the contact elements 17a, 17b cooperating with the conductors 5a, 5b are diametrically opposite one another with respect to the central axis of the plug connection 21 are arranged, here in the opposite corner regions of the preferably square plug part 4th

As can best be seen from FIG. 5, the contact webs 14, 17e extend transversely relative to one another in the assembly position, so that the contact arms 13 can overlap. Preferably, the contact webs 14, 17e include a pointed W2 of, for example, about 30 ° to 45 °.

The second plug part 4 has in each case a through hole for the conductors 5a, 5b, so that the conductor or conductors 5a, 5b can be formed as a passage line. At the through-holes 22 of the preferably square in the side walls connector part 4 bushings 23 are preferably formed in, for example, a hollow cylindrical shape through which the through holes 22 extend. On the walls of the through openings 22, one or more annular beads 24 are preferably formed, which press in the mounted position against the extending through the through hole 22 conductors 5a, 5b and thereby improve the seal in the region of the associated through hole 22.

In the exemplary embodiment, the second plug part 4 is formed by two half-shells 4 a, 4 b, which lie against one another in the region of the axial plane of the conductor or conductors 5 a, 5 b at a dividing joint 25. This embodiment makes it possible to position the contact elements 7a, 7b in a form-fitting manner between the half shells 4a, 4b, wherein the associated receiving chambers 11a, 11b can be arranged only in the one half shell 4a or in both half shells 4a, 4b.

The half shells 4a, 4b each form a housing with a base wall 4a1 or 4b1 and side wall sections 4a2 or 4b2, in the cavity of which the contact elements 7a, 7b can be arranged protected except for the respective associated contact access opening of the plug connection 21.

Alternatively, at least one of the two connector parts can be produced by encapsulation of the metallic components, for example with PVC. Thus, then there is a one-piece connector housing.

In the exemplary embodiment, the plug-in connection 21 is formed by a plug-in pin 21a and a plug-in recess 21b receiving it, the plug-in pin 21a being formed on the first plug-in part 3 and the plug-in recess 21b on the second plug-in part 4. But it is also possible to arrange the plug and the plug recess vice versa. The cross-sectional shape of the prismatic plug-in pin 21a and the correspondingly shaped plug-in recess 21b is preferably non-circular or not rotationally symmetrical, in order to ensure pole interchange protection. As shown in particular Figures 2 and 5, the plug-in recess 21b has the cross-sectional shape of a slot which is flattened on a narrow side.

The plug-in recess 21b is surrounded at its periphery by a peripheral wall 4b3, which extends from the base wall 4b1 of the half-shell 4b preferably to the base wall 4a1 of the half-shell 4a, so that the base wall 4a1 axially delimits the plug-in recess 21ba. A centering 26 centering the half-shells 4a, 4b can be formed by a circumferential wall 4a3 projecting from the base wall 4a1 of the half-shell 4a on the inside, which engage over the peripheral wall 4b3 with a play of movement in the manner of a sleeve. In this case, at least the inner peripheral wall 4b3 projects beyond the dividing joint 25, the outer peripheral wall 4a3 also projecting beyond the dividing joint 25 in the exemplary embodiment and extending into the vicinity of the opposite base wall 4b1. Instead of an annular peripheral wall 4a3, this can also be formed by distributed on the circumference arranged segments. The receiving chambers 11a, 11b may be formed in the region of the base webs 17d with shallow grooves 11c in the peripheral wall 4a3, 4b3, so that the base web 17d is positioned between the base wall 4a1 and the peripheral wall 4b3 or its groove bottom in the axial direction of the plug connection 21. In the circumferential wall 4a3, the receiving chamber 11 extends over the entire height of the peripheral wall 4a3, so that the contact element part 17c can be inserted axially into the half shell 4a or the half shell 4a1 can be placed against the half shell 4b containing the contact element part 17c. It can be provided in each case an additional centering 20 between the base wall 4a1 and the base web 17d, for example by a Spigot connection with a formed on the base wall 4a1 centering pin 20a and a receiving hole 20b may be formed.

In order to ensure that the contact elements 6a, 6b, 7a, 7b overlap, additional receiving chambers 9c are arranged in the plug-in pin 21a in the plug-in pin 21a for the contact webs 17f projecting axially parallel to the plug-in recess 21b, into which the contact webs 17f dip when plugged together.

In order to facilitate the mating, insertion surfaces 27 formed by inclined surfaces or curves on the edge of the plug 21a and / or the plug recess 21b are provided. The same insertion surfaces 28 may also be arranged at the mouth openings of the receiving chambers 9a, 9b in the plug 21b.

For sealing the plug connection 21, a ring seal 31 indicated in FIG. 6 is arranged between the plug parts 3, 4, which seal forms a seal on the entire circumference in the assembled state. The ring seal 31 is preferably arranged in the annular gap between the outer circumferential surface of the plug pin 21a and the inner circumferential surface of the plug recess 21b. In the exemplary embodiment, the annular seal 31 is formed by an annular bead 32 on the outer lateral surface of the plug-in pin 21a and / or on the inner lateral surface of the plug-in recess 21b. The annular bead 32 is formed so large that it rests with its apex line on the opposite outer lateral surface or inner lateral surface, preferably with a low compressive stress.

It is also advantageous to provide a latching device 33 between the plug parts 3, 4, which automatically engages in the assembled position. The engagement is preferably sensed or audible. As a result, the user receives an acknowledgment whether the connector 21 is in its end position in which the contact is securely closed. It can be integrally formed on the one part at least one Verrastungsnase 34 which automatically engages in the mated position behind a Verrastungskante 35 on the other part. The Verrastungsnase 34 and the Verrastungskante 35 may be annular. In the exemplary embodiment, the Verrastungsnase 34 is disposed on the outer circumferential surface of the plug pin 21a and it engages behind in the assembled position a latching edge 35 formed by an annular bead 36. The Verrastungsnase, which can be arranged in the inversion, ie on the inner lateral surface of the plug recess 21b, is formed so large that it rests against the respective opposite lateral surface, preferably with a certain radial tension. When locking, the claimed materials may be due to existing inherent elasticity dodge something, so that the latching device 33 is not destroyed during locking. In the embodiment, the socket, here the half-shell 4b, made of a material which is softer or more elastic than the plug-in pin 21, so that the peripheral wall 4b3 can yield elastically, being subjected to a tensile stress. This is cheaper than a deflection of the material of the spigot 21a, which would have to be due to material compression.

The latching device 33 generates a pressure point when latched, which generates an audible noise or a noticeable stiffness when pushed over, giving the user the effectiveness and the implementation of the latching. As a result, an indicator for a correct locking is created in which the contact is optimal and safe.

To seal the half-shells 4a, 4b, they can be sealed at the dividing joint 25 or surface, for example by welding, in particular ultrasonic welding, gluing, snapping or pressing. This makes it possible to realize a moisture-proof design of the housing of the plug part 4.

Another measure for sealing the connector 21 is that the first and / or second connector part 3, 4 with an insulating layer, for example, a paint to coat, for example, in the prefabrication of the respective connector parts 3, 4. With respect to the electrical Kontaktes is such an insulating layer harmless, since the insulation layer is severed during assembly by the cutting / Klemmkontaktierung.

The invention also relates to a simple, inexpensive to produce and easy and quick to assemble ladder assembly with connector parts 4. The conductor assembly consists of long conductor sections 5a, 5b, which are connected in uniform or uneven predetermined distances from each other with second connector parts 4. From such a prefabrication product then required lengths can be separated by separating. The prefabricated product can be stored, for example, rolled up, which saves storage space and also results in a simple transport.

To connect the conductors 5a, 5b, the contact element parts 17c are first inserted into the half-shell 4a. Then, the conductors 5a, 5b are pressed into the half holes 22 and into the cutting / clamping slots 12, whereby the electrical contact between the conductors 5a, 5b and the contact elements 17a, 17b is produced. Thereafter, the other half-shell 4b is pressed against the first half-shell 4a, and it will be the Half shells 4a, 4b connected to each other, which can be done for example by a clamping or locking device not shown (not shown) or by welding, as has already been described. As a result, a conductor arrangement with a connector part 4 is prefabricated. The connection and contacting with the second connector part 3 can then be done on site.

The embodiment of Figure 9, in which the same or similar parts are provided with the same reference numerals, shows a printed circuit board 2 with a narrow side arranged first connector part 3. This is to be clarified that the connector 21 with respect to the circuit board 2 can also be arranged on the narrow side and the Components 8 can be arranged on one or both broad sides of the printed circuit board 2.

The embodiment according to FIG. 10, in which the same or comparable parts are provided with the same reference numerals, differs from the exemplary embodiment according to FIG. 1 in that the first plug part 3 passes through the printed circuit board 2 in a hole, not shown, and the printed circuit board 2 with a flange 19 engages behind.

The embodiment according to FIG. 11, in which identical or comparable parts are likewise designated by the same reference numerals, differs on the one hand in that an elongated printed circuit board is arranged transversely to the conductors 5a, 5b. In particular, in such an arrangement, the electrical components 8 may be arranged on the broad side facing away from the second plug part 4 and / or on the facing broad side of the printed circuit board 2. Since the conductors 5a, 5b extend transversely to the printed circuit board 2, only a small part of the printed circuit board 2 is covered by the conductors 5a, 5b, so that the remaining part of this broad side is available for components 8.

In the embodiment according to FIG. 12, the first plug part 3 is not connected to a printed circuit board but to two further electrical conductors 41a, 41b or conductor wires which may extend parallel or else transversely to the conductors 5a, 5b. In this embodiment, the first contact elements 6a, 6b of the first connector part 3 may be connected in a suitable manner to the conductors 41a, 41b, for example by means of screw terminals. This is also possible with the above-described embodiments for connecting the second contact elements 17a, 17b to the conductors 5a, 5b. However, the contact connection with the contact elements 17a, 17b can also be done in the embodiment of Figure 12 by cutting / clamping contacts, as has already been described. Here, the first connector 3 also consist of two half-shells, wherein on one of the two half-shells of the plug-in pin 21a is formed and the other half-shell without the plug-in recess 21b is formed.

In all the above-described embodiments, the slots 12 have at their entrances known per se divergent Schlitzerweiterungen that simplify the insertion of the associated conductor wire in the slot 12, with a blunt impact of the opening edges on the conductor core 5a and 5b is avoided.

The designated in Fig. 13 with 51 embodiment of a lighting system in which the same or similar components are designated by the same reference numerals, can be added piece by piece and optionally with several complementary components of the invention. A conductor strand 52 comprising at least two electrical conductors 5a, 5b described above has one or more devices 1 described above, which may be arranged at equal or unequal distances from one another. In this case, printed circuit boards 2 can be used with the same or different light radiation, e.g. the printed circuit boards 2 with a different number of light-emitting diodes or LEDs that emit light of different colors. It is also possible to provide printed circuit boards 2 of different lengths, which are equipped with a different number of light-emitting diodes, wherein the spacing of the light-emitting diodes from one another is preferably the same. In such an arrangement, the distance d of the devices 1 from each other is a multiple of the distance e of the LEDs from each other, which is determined by the number of light-emitting diodes present therebetween. This makes it possible to achieve a light emission uniform luminance, or it is also possible to achieve by the optional use of printed circuit boards 2 with a larger and smaller number of light-emitting diodes, a light emission, which is different in the longitudinal direction of the conductor strand 52.

It is possible and advantageous to prefabricate a conductor strand 52 in excess in the sense of a stock, from which optionally a respective required length can be separated. As a result, the production is much easier and cheaper. A ladder strand supply can be conveniently stored especially when it is wound up as a supply on a roll and can optionally be deducted from the roll. When rolling up and unwinding the conductor strand 52 can be easily bent and stretched again due to the plastic flexibility of the conductor wires 5a, 5b or cable.

To connect a conductor strand 52 with an electrical supply, such as an electrical power source or an operating device 53, a plug part 54 is provided which fits in terms of its shape and size G to the second plug part 4, preferably identical to the first plug part 3, at least as far the fit with respect to the second connector part 4 is affected. It is advantageous, including the associated Contact elements 6a, 6b identical form, to ensure the lowest possible production costs. For the purpose of avoiding repetition, reference is made to the description of the first plug part 3 with regard to the matching section of the plug part 54.

However, it is also possible to use for the electrical connection of the at least one conductor strand 52 with the electrical supply, the conductors 5a, 5b, e.g. directly or by plug part with the supply, here with the operating device 53, are connectable.

In the exemplary embodiment, the plug part 54 has a housing consisting of two housing parts 54a, 54b, of which the lower housing part 54a carries the mating plug portion, here the plug pin 21a, preferably by integral molding. Between the lower and upper housing part 54a, 54b 54 through holes for electrical conductors 55a, 55b are provided at one end of the connector part, which are connected or connectable to the electrical supply, here on the operating device 53. To connect the preferably flat housing parts 54a, 54b to each other a locking device is preferably provided, in particular one which has two Verrastungsnasen, which are arranged at opposite ends of the housing and each cooperate with an opposite Verrastungskante on the other housing part 54a, 54b.

In order to widen the illuminant system 51 and to increase the number of light-emitting diodes 8, two or more conductor strands 52, 52a may be provided, which may be provided with identical or different printed circuit boards 2 or light-emitting diodes 8. This is illustrated in the embodiment in that the conductor strand 52a is equipped with shorter printed circuit boards 2, each having only three light-emitting diodes 8, while the printed circuit boards 8 of the first conductor strand 52 each have a larger number of light-emitting diodes 8, e.g. six pieces. Due to the plastic flexibility of the conductor wires 5a, 5b, it is possible, in the presence of printed circuit boards 2, which are spaced from each other, to reduce this distance by lateral bending of the conductor wires 55a, 55b and thus to even out or increase the light emission, as it the conductor strand 52a, for example, shows.

For the electrical supply of the conductor strand 52a, a plug part 54 may be provided, which is connected to electrical conductors 55a, 55b or cables directly or indirectly to the electrical supply, eg the operating device 53. In the embodiment, a bridge 56 is provided for the direct connection of the conductor strands 52, 52a. The bridge 56 has two connector parts 54 which are connected by electrical conductors 55a, 55b are connected to each other, for example, as has already been described for the connecting line 57, which is connected to the operating device 53. In the embodiment, it requires the conductor strand 52, two second connector parts 4 more than the number of stocked with circuit boards 2 second connector parts 4, on the one hand for connection to the conductor strand 52a and the other for the connection to the electrical supply. These second connector parts 4, which are not equipped with printed circuit boards 2, are preferably arranged in the free end region of the conductor strand 52. For the conductor strand 52a, only one such additional second plug part 4 is required for the electrical connection, for example through the bridge 56.

In order to ensure a fixation of one or both of the conductor strands 52, 52a, in this case the conductor strand 52, the conductor strand 52 is assigned at least one fixing device 58a, 58b, by means of which it can be fixed to a carrier which has, for example, a disk-shaped advertising carrier or display surface carrier , behind which the lighting system is arranged to illuminate the advertising or display area from behind, eg at the bottom of the cavity of a luminous object.

The fixing device 58a, 58b may be associated with each second plug part 4 of the conductor strand 52 and / or the conductor strand 52a. The embodiment shows two different fixing devices 58a, 58b alternatively. The fixing device 58a comprises an adhesive layer 59 for bonding the underside of the second connector part 4 with the carrier, not shown. The adhesive layer 59 may be prefabricated on the plug part 4 and covered by a cover sheet 61, whereby its adhesive property is maintained. For sticking, the covering film 61 can be removed and the respective plug part 4 pressed against the carrier and thereby adhered. If the covering film 61 preferably has fastening tabs 61a which are opposite one another and projecting beyond the plug part 4, the removal of the covering film 61 can be omitted since the covering film 61 can be fastened to the carrier in the region of its fastening tabs 61a by means of small nails or screws.

The last plug part 4 of a strand 52 or 52a or another second plug part 4, which carries no printed circuit board 2, can be protected with respect to its plug recess 21b by an already described blind plug 62 against the ingress of dirt and liquid or moisture. With respect to its shape and size, the blanking plug 62 corresponds to the plug-in pin 21a, to the description of which it is referred.

For closing the front of the half shells 4a, 4b existing housing of eg the foremost and / or rearmost plug part 4 of the strand 52 and / or 52a is an end closure 63, here in the form of an end cap, which is used to close the Through holes for the electrical conductors 5a, 5b can be plugged, for example, on the sockets 23, to which the end cap with the corresponding plug recesses 63a can be plugged.

The alternative embodiment of the fixing device 58 may include an adapter plate 64 having at least one fastener 65 for attachment to the carrier and secured by corresponding fasteners, e.g. Clamping elements, with the lower half-shell 4a of the second connector part 4 is connectable. The adapter plate 64 may have lateral clamping webs 66, between which the half-shell 4a is clamped by insertion. The first mentioned fasteners 65 attached to the support, e.g. formed by one or two mounting holes 6, may serve to secure the adapter 64 to the carrier by means of small nails or screws. The adapter plates 64 may be previously secured to the carrier in the sense of prefabrication. During assembly of the lighting system 51 then the respective connector parts 4 need only be inserted between the clamping legs 66 of the respective adapter 64, between which they are non-positively or possibly positively held releasably preferably in the sense of a latching device. Also in this mounting case, each plug part 4 or only part of the plug parts 4 may each be assigned an adapter plate 64. Like the plug parts 4 and 21a or 21b, the plug parts 54a, 54b also consist of plastic, which can be shaped by injection molding, in particular plastic.

Claims (26)

1. Device (1) for the mechanical connection and the electrical contacting of a circuit board (2) with at least two electrical conductors (5a, 5b), having

   - a first plug part (3) attached to the circuit board (2),

   - at least two first electrical contact elements (6a, 6b), associated with the first plug part (3), which are electrically conductively connected with at least one electrical component (18) on the circuit board (2),

   - and a second plug part (4), corresponding to the first plug part (3), which is mechanically connected with the electrical conductors (5a, 5b) and has at least two second contact elements (7a, 7b), corresponding to the first contact elements (6a, 6b), which are electrically conductively connected with the electrical conductors (5a, 5b),

   characterized in that,
   for contacting the first and second contact elements (6a, 6b, 7a, 7b) with one another, there are provided insulation piercing contacts.
2. Device according to claim 1,
   characterized in that,
   of the contact element pairs (6a, 7a or 6b, 7b) the first contact element (6a or 6b) or the second contact element (7a or 7b) is formed by means of an insulation piercing contact element and the other contact element is formed by means of a contact web (14), or the two first and second contact elements (6a, 7a or 6b, 7b) cooperating with one another are in each case formed by means of an insulation piercing contact element.
3. Device according to claim 1 or 2,
   characterized in that,
   the first and second contact elements (6a, 7a or 6b, 7b) cooperating with one another, enclose between them an acute angle (W2), which is about 20° to 40°, preferably about 30°.
4. Device according to any preceding claim,
   characterized in that,
   the second contact elements (7a, 7b) are in each case arranged on a contact element part (17c) which has a third contact element (17a, 17b) for electrically conductive connection with the associated conductors (5a, 5b).
5. Device according to claim 4,
   characterized in that,
   the third contact elements (17a, 17b) are in each case formed by means of an insulation piercing contact element.
6. Device according to any preceding claim,
   characterized in that,
   the first and second contact elements (6a, 6b, 7a, 7b) have a spacing from one another extending in the longitudinal direction of the conductors (5a, 5b).
7. Device according to any preceding claim,
   characterized in that,
   the axis of the plug parts (3, 4) - seen transversely to a plane containing the axes of the electrical conductors (5a, 5b) - is arranged between the conductors (5a, 5b).
8. Device according to claim 7,
   characterized in that,
   the third contact elements (17a, 17b) have, with regard to the second contact element (7a, 7b), a spacing (a, b) from one another directed in the longitudinal direction of the conductors (5a, 5b) and/or transversely thereto.
9. Device according to any preceding claim,
   characterized in that,
   the first contact elements (6a, 6b) are in each case arranged on a contact element part (16c) which has a fourth contact element (16a, 16b) for electrically conductive connection to the circuit board (2).
10. Device according to claim 9,
    characterized in that,
    the fourth contact elements (16a, 16b) are in each case formed by means of a contact web standing out transversely from the first contact element (6a, 6b).
11. Device according to claim 9 or 10,
    characterized in that,
    the first plug part (3) is attached with its rear side to a broad side of the circuit board (2) and preferably has on the rear side recesses (9c) for receiving the fourth contact elements (16a, 16b).
12. Device according to claim 10 or 11,
    characterized in that,
    the contact webs (16a, 16b) include with the associated first contact elements (6a, 7a) an angle (W1) which is somewhat greater than 90°.
13. Device according to any preceding claim,
    characterized in that,
    one plug part, preferably the first plug part (3), is formed by means of a plug pin (21a) and the other plug part, preferably the second plug part (4), has a plug recess (21b) for receiving the plug pin (21a).
14. Device according to any preceding claim,
    characterized in that,
    the second plug part (4) has four holes (22) for the electrical conductors (5a, 5b), which preferably extend transversely to the plug pin (21a) and in particular are arranged in a common plane extending transversely to the plug pin (21a).
15. Device according to any preceding claim,
    the second plug part (4) is assembled of two half-shells (4a, 4b), wherein the dividing joint (25) extends transversely to the axis of the plug parts (3, 4), preferably arranged in the plane containing the middle axis of the holes (22).
16. Device according to claim 15,
    characterized in that,
    the half-shells (4a, 4b) are sealed, preferably ultrasonically welded.
17. Device according to any preceding claim,
    characterized in that,
    the first and the second plug parts (3, 4) in their plugged together disposition are each latchable by means of a clamping and/or latching device (33).
18. Device according to claim 17,
    characterized in that,
    the latching device (33) is formed by means of a latch nose (34), arranged on the outer surface of the plug pin (21a) or on the inner surface of the plug recess (21b), which latch nose in the plugged together disposition engages behind a latch edge (35) on the respective other part.
19. Device according to any of preceding claims 13 to 18,
    characterized in that,
    between the surface of the plug pin (21a) and the inner surface of the plug recess (21b) there is arranged a ring seal (31) which is preferably arranged by means of a ring bulge (32) on the outer peripheral surface of the plug pin (21a) or on the inner peripheral surface of the plug recess (21b) and bears in a sealing manner on the respective oppositely lying surface.
20. Device according to any preceding claim,
    characterized in that,
    the first plug part (3) and/or the second plug part (4) has an insulating layer for example of a lacquer.
21. Device according to any preceding claim,
    characterized in that,
    the axis of the plug parts (3, 4) develop transversely to the plane containing the axis (5c) of the electrical conductors (5a, 5b).
22. Plug for the electrical contacting of electrical conductors (5a, 5b), having

    - a first plug part (3),

    - at least two first electrical contact elements (6a, 6b) associated with the first plug part (3),

    - and a second plug part (4), corresponding with the first plug part (3), which is mechanically connected with electrical conductors (5a, 5b) and has at least two second contact elements (7a, 7b), corresponding with the first contact elements (6a, 6b), which are electrically conductively connected with the electrical conductors (5a, 5b),

    characterized in that,
    for contacting the first and second elements (6a, 6b, 7a, 7b) insulation piercing contacts are provided.
23. Plug according to claim 21,
    characterized in that,
    of the contact element pairs (6a, 7a or 6b, 7b) the first contact element (6a or 6b) or the second contact element (7a or 7b) is formed by means of an insulation piercing contact element and the other contact element is formed by means of a contact web (14), or the two first and second contact elements (6a, 7a or 6b, 7b) cooperating with one another are in each case formed by means of an insulation piercing contact element.
24. Plug according to claim 23,
    characterized in that,
    the first and second contact elements (6a, 7a or 6b, 7b) cooperating with one another, enclose between them an acute angle (W2), which is about 20° to 40°, preferably about 30°.
25. Plug according to claim 23 or 24,
    the second plug part (4) is assembled of two half-shells (4a, 4b), wherein the dividing joint (25) extends transversely to the axis of the plug parts (3, 4) preferably arranged in the plane containing the middle axis of the holes (22).
26. Plug according to claim 25,
    characterized in that,
    the half-shells (4a, 4b) are sealed, preferably ultrasonically welded.

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