EP2509171B1 - Line connection plug, connector and set comprising line connection plug and connector - Google Patents

Description

The invention relates to a conductor connector and a connector for a set of conductor connector and connector, wherein the conductor connector has a Isolierstoffgehäuse and Leiteranschlusskontaktelemente in Isolierstoffgehäuse, and wherein the connector has a Isolierstoffgehäuse and plug contact elements in the insulating material.

State of the art

Conductor connector and connectors are known in various embodiments. They serve, for example, for the electrical connection of electrical consumers, such as lights.

EP 0 922 320 B1 describes a device for connecting a line leading to a consumer with an electrical connection with a mountable on a wall or a ceiling base part and a holding device provided for holding the consumer. The base part has a recess for receiving the holding device. A designed as a latch connector is provided which fixes the holding device in the recess in the base part in the inserted into a socket state.

DE 2 258 156 A discloses an electrical coupling for screwless connection of electrical lines with a socket part and a plug part. In the female part clamping springs are provided for clamping electrical lines and a clamping spring for contacting a plug pin of the plug part. Also, the plug part has a clamping spring for clamping an electrical line.

EP 1 372 365 A1 discloses a multi-pole electrical connection connector for attachment to a mounting opening of a housing wall of a lamp housing. Inside the housing there is a connection terminal which comes into electrically conductive contact with contact pins of the connection connector inserted in the mounting opening.

DE 102 18 128 C1 and EP 1 388 914 A1 disclose a connection system in which a plug base is clamped in a mounting surface of an electrical device. From the opposite side then a connector shell can be placed. Plug pins then dive through the mounting hole and contact the male connector located on the other side of the mounting surface.

WO 2010/109550 A1 discloses a coaxial connector with a conductor connector and a connector. The connector has a guide opening formed by an annular side wall. In the guide opening, a contact pin extends to the upper edge of the guide opening forming side wall. The conductor connector also has an annular closed side wall which forms a receiving opening and is provided for mounting on the annular side wall of the connector. The conductor connector is plugged onto the connector and surrounds it in full, with the conductor connector above the upper edge of the guide opening protrudes from the connector.

DE 10 2004 024 479 A1 discloses a connector with a contact spring which projects into a receiving opening. The receiving opening is by a limited annular closed side wall. The contact spring protrudes from the receiving opening to contact a located outside the receiving opening outer conductor mating contact. The side wall is electrically connected by means of an annularly closed solder or contact ring with another mating contact. The connector thus serves for placement on a circuit board.

EP-A-1033791 discloses the features of the preambles of independent claims 1 and 12.

Proceeding from this, it is an object of the present invention to provide an improved set of conductor connector and connector and a correspondingly suitable conductor connector and connector that enables plug-in, especially for use in a luminaire with the lowest possible height and the simplest possible and inexpensive construction.

Disclosure of the invention

The object is achieved with the connector having the features of independent claim 1 and a set of conductor connector and connector with the features of the dependent claim 4 and the associated conductor connector with the features of independent claim 12.

The conductor connector is not placed as usual on a connector to partially dip into the connector. Rather, the conductor connector has a plug-in state next to the connector arranged region for the conductor connection contact and an inserted into the connector area with the contact tongue. This is made possible by the fact that the contact tongues extend transversely to the direction of insertion and the plug-in contact element has a contact contact element aligned transversely thereto in the contact region. In such an embodiment, a simple and electrically secure contact is made possible by the fact that the contact tongue and plug contact element form a spring force contact in the inserted state of the conductor connector and connector. The nesting according to the invention of conductor connector and connector while saving height by the arrangement of the conductor connection contact-carrying portion of the conductor connector next to the connector is made possible by guide slots on the side walls of at least one of the insulating material of the conductor connector and / or the connector.

By aligning the contact tongue transversely to the direction of insertion, the conductor connection contacts then open at the opposite end of the contact tongue and are therefore arranged in a height-saving manner next to the connector.

In an advantageous embodiment, the contact tongues have an insertion slot for insertion of a plug-in contact element at the free end. The insertion slot is bounded by two mutually parallel fork contact tines to form a resilient fork contact.

In this embodiment, the spring force contact is provided by the resilient fork contact at the free end of the contact tongue. The plug contact element of the connector is then designed as a blade contact, which is guided in the insertion slot between the fork contact prongs and clamped on both sides of the fork contact prongs.

In an alternative embodiment, the plug contact elements have a U-shaped bent and provided with a spring bow contact spring. In this embodiment, the spring force contact is essentially realized by the plug contact element as an active part. When attaching the conductor connector to the connector, the U-shaped contact spring is displaced against its spring force, so that a contact region of the contact spring rests under spring force on the contact tongue.

To the contact pressure of the contact spring to the lowest possible contact point concentrate and thus make the best possible use of the surface pressure, it is advantageous if protruding from a free end portion of a clamping leg of the contact spring provided for support on or for engaging in a contact tongue contact projection.

The connector may for example be a built-in lamp housing lamp plug. The conductor connector is then a voltage supply plug attached to a light socket. In this way, a lamp low height can be realized in which the light socket is snapped into the lamp housing and electrically contacted with the set of conductor connector and connector. In this case, a small gap between the lamp housing wall carrying the lamp plug and the wall of the lamp socket carrying the power supply plug is required.

The contact elements of the connector can be connected in such a lamp advantageously with light sources in the lamp housing, in particular with LEDs, electrically connected. With the set of conductor connector and connector can be realized with light-emitting diodes lamp low height, which also easy to assemble and can be produced with little effort.

In such a lamp, it is advantageous if a PE contact protrudes from the light socket in the direction of the lamp housing. A conductor connection contact element of the conductor connection plug then preferably has a PE contact section provided for receiving and contacting the PE contact. Thus, this recording and contacting of the PE contact can be realized for example with a fork contact, which receives the in PE contact. The fork contact can be formed from a conductor rail piece (eg stamped out), from which the contact tongue and the conductor connection contact are formed.

For reliable and simple connection of electrical conductors to the conductor connector, it is advantageous if conductor terminal contact elements opposite to the contact tongue each have at least one spring clamp connection for spring-force Klemmkontaktierung an electrical conductor.

Advantageous embodiments are described in the subclaims.

Brief description of the drawings

Figur 1

- Seitenansicht einer Leuchte im Teilschnitt mit einem Set aus Leiteranschlussstecker und Steckverbinder;

Figur 2

- Explosionsdarstellung eines Leuchtensockels mit PE-Kontakt, eines Leiteranschlusssteckers und eines Steckverbinders mit Kontaktfeder;

Figur 3

- Draufsicht auf das Set aus Figur 2;

Figur 4

- Explosionsdarstellung eines Sets aus Leiteranschlussstecker und Steckverbinder mit einem Gabelkontakt einer Kontaktzunge und einem Messerkontakt am Steckkontaktelement des Steckverbinders;

Figur 5

- Front-Schnittansicht des Sets aus Figur 4 im Vormontagezustand;

Figur 6

- Front-Schnittansicht des Sets aus Figur 4 in Endmontagestellung;

Figur 7

- Draufsicht auf das Set aus Figur 6;

Figur 8a) u. b)

- Skizze einer Rastbefestigung eines Leuchtensockels am Leuchtengehäuse im Vormontage- und Endmontagezustand.

The invention will be explained in more detail with reference to embodiments with the accompanying drawings. Show it:

FIG. 1

- Side view of a luminaire in partial section with a set of conductor connector and connector;

FIG. 2

- Exploded view of a lamp base with PE contact, a conductor connector and a connector with contact spring;

FIG. 3

- Top view of the set FIG. 2 ;

FIG. 4

- Exploded view of a set of conductor connector and connector with a fork contact a contact tongue and a blade contact on the plug contact element of the connector;

FIG. 5

- Front sectional view of the set FIG. 4 in pre-assembly condition;

FIG. 6

- Front sectional view of the set FIG. 4 in final assembly position;

FIG. 7

- Top view of the set FIG. 6 ;

Figure 8a) u. b)

- Sketch of a latching attachment of a light socket on the luminaire housing in the pre-assembly and final assembly state.

Embodiments of the invention

FIG. 1 lets recognize a lamp 1 with a lamp base 2, which is latched onto a lamp housing 3. In the lamp base 2 bulbs 4 in the form of light emitting diodes distributed on a support 5 are arranged. It is conceivable that the light-emitting diodes 4 are soldered on a conductor foil or a circuit board, wherein the conductor foil or circuit board is applied to a boundary wall of the light socket.

The bulbs 4 protrude into a limited by a translucent cover 6 and the carrier 5 interior. From the carrier 5 also protrudes into the outer space from a connector 7, which is connected to the carrier 5. The connector 7 has contact pins which protrude into the interior of the lamp socket and are electrically connected to the light source 4 optionally with the interposition of a control electronics.

The supply of electrical energy to the lamp 1 is carried out with the aid of an inserted into the lamp housing 3 connecting cable 8. This connection cable 8 is guided in a conductor connector 9 and contacted there electrically conductive.

Out FIG. 1 can be seen that the conductor connector 9 in the illustrated final assembly state, ie in the inserted state, is arranged next to the connector 7. In this way, considerable height is saved.

This arrangement of conductor connector 9 and connector 7 in the inserted state and the achievement of a very low overall height for conductor connector 9 and connector 7 is made possible that extending in the conductor connector 9 a contact tongue transversely to the insertion direction approximately parallel to the plane of the carrier 5. This will be below more clear.

FIG. 2 shows an exploded view of a first embodiment of a set of conductor connector 9 and connector 7 recognize. It becomes clear that such a connector 9 has an insulating housing 10, in which a contact tongue 13 extends horizontally and transversely to the plug-in direction S from a conductor connection region 11 in the direction of a spring clamping region 12 of the conductor connection plug 9. In this case, the contact tongue 13 is formed from a conductor rail piece with which at least one conductor connection contact 14 is formed in the conductor connection region 11 on the side opposite the free end of the contact tongue 13. The design of the conductor connection contacts 14, for example as spring contacts, but also as screw contacts or insulation displacement contacts or the like, is at the discretion of the skilled person. Conductor terminal contacts 14 are known per se in various embodiments.

It is also clear that in the spring clamping region 12, a receiving opening 15 is formed in the insulating housing 10, which forms an insertion direction S extending in the insertion channel. The contact tongue 13 projects transversely thereto into this insertion channel.

The connector 7 has in the same way an insulating housing 16 that in the illustrated embodiment has two parts by a bottom part 17 and a latched on the side walls of the bottom part 17 lid member 18. Furthermore, the connector 7 has a plug-in contact element 19, which is formed in the illustrated embodiment as a clamping spring. At the free end of the clamping leg 22 protrudes in the insertion direction or in the opposite insertion direction, a contact projection 23 protrudes, which provided for support on the underside of the contact tongue 13 of the conductor connection plug is.

In the unactuated state of the clamping leg 22 of the clamping spring abuts a stop 24 of the insulating housing 16 of the connector 7, so as to ensure a defined rest position of the plug-in contact element 19. When attaching the conductor connector 9 to the connector 7 of the clamping leg 22 is shown as shown in dashed lines together with the contact projection 23 in the bottom part 17 and carrier 5 of the lamp base 2 moves. With the help of the spring bow 21, the plug contact element 19 then exerts a spring force with which the contact projection 23 is pressed against the underside of the contact tongue 13. In this way, a reliable electrical contact between the contact blade 13 and plug contact element 19 is ensured.

It can also be seen that the bottom part 17 is installed by means of a ring seal 25 in a receiving opening in the carrier 5 of the lamp base 2. Thus, the interior of the light socket 2 is protected from penetrating moisture.

It can also be seen that from the contact leg 20 of the plug contact element 19 contact pins 26 protrude through the bottom part 17. These contact pins 26 can then be soldered to a conductor foil 27 or board, on which the bulbs 4 are applied. Of course, other embodiments of the contact pins, e.g. as SMD contacts (surface-mounted device) or similar.

Out FIG. 2 is still recognizable that protrudes from the light socket 3, a PE contact 28 down in the direction of conductor connector 9. This PE contact 28 may, for example, be a metal tongue bent out of a luminaire sheet or, as illustrated, a separate metal tongue connected to the luminaire sheet. The PE contact 28 must be metallic as usual.

That for the formation of the contact tongue 13 and a conductor connection contact 14 used busbar piece is then formed in at least one conductor connection contact so that it has an upwardly projecting portion for receiving and contacting the PE contact 28. This can be realized for example by forming a fork contact on the busbar piece, which protrudes upwards.

FIG. 3 leaves a top view of the set FIG. 2 detect. It is clear that the contact tongue 13 is installed horizontally and transversely to the direction of insertion in the insulating housing 10 of the conductor connector 9. When plugged in, the contact tongue 13, together with a surrounding the contact tongue 13 Isolierstoffgehäusebereich into a guide opening 29 of the connector 7 into it. This guide opening 29 is formed by walls of the cover part 18 of the connector 7. In the lower part of the connector 7 is shown in partial section, so that the contact tongue 13 with the adjacent insulating housing 10 is visible (cut). There it is clear that extends transversely to the direction of extension of the contact tongue 13, a contact projection 23 in the insertion direction S, which is supported by a free end of the clamping leg 22 of the clamping spring. The contact projection 23 may be integrally formed by folding from the same material of the clamping spring.

In the embodiment according to FIG. 2 and 3 the spring terminal contact between the contact tongue 13 and plug contact element 19 is provided by the spring action of the clamping spring.

Below is with the FIGS. 4 to 6 another embodiment described in which the spring force is provided by a resilient fork contact at the free end of the contact tongue 13. It can be seen that the conductor connector 9 is in principle designed as in the previously described embodiment, so that reference can be made to the above. However, at the free end of the horizontally transversely to the direction of insertion S extending contact tongue 13 is an incision by a resilient fork contact by working out of two substantially mutually parallel fork contact tines 30a, 30b worked out. It can be seen that the fork-type tines 30a, 30b are possibly rotated relative to each other and possibly bent upwards or downwards.

The plug-in contact element 19 of the connector 7 is formed in this embodiment as in the insertion direction S or opposite plug-in direction S protruding blade contact. This knife contact is formed from a metallic sheet metal strip from which also projects a sheet-shaped, flat contact pin 26 down. In this embodiment, a spring plug contact for connection of an electrical conductor in the lamp housing 2 is formed below the insulating housing 16 of the connector by means of the contact pin 26. For this purpose, a conductor insertion opening 31 is formed with the aid of corresponding boundary walls 32 below the bottom part 17 of the one-piece insulating material 16 of the connector 7. The contact pin 26 protrudes into the conductor insertion opening 31 and is angled there in Ladereinsteckrichtung 11. The free end of the contact pin 26 is again obliquely presented to the conductor insertion opening L to provide a spring clamp connection for an electrical conductor. In this embodiment, the contact pin 26 is designed as a leaf-shaped, flat contact spring having a sufficient width and not pin-shaped as in the first embodiment.

It is also clear that in the guide opening 29 forming walls of the insulating 16 and in the side wall of the insulating 10 guide slots 33 are introduced, which allow nesting of conductor connector 9 and connector 7, so that the conductor connection area 11 is located next to the connector 7 and height is saved.

FIG. 5 leaves a front section view of the set FIG. 4 recognize in the pre-assembly. It is clear that the two fork contact tines 30a, 30b are twisted against each other so that they with their contact surfaces at an angle of z. B. 60 to 120 ° and preferably from about 90 ° to each other. This enables an improved introduction of the contact contact element 19 designed as a knife contact into the insertion slot 34 delimited by the fork contact prongs 30a, 30b, even if the fork contact is offset in the tolerance range relative to the plug contact element 19, as in FIG FIG. 5 outlined.

FIG. 6 leaves the set FIG. 4 recognize in the final assembly position. It is clear that now the blade contact of the plug contact element 19 is completely inserted into the resilient fork contact and the mutually twisted fork contact prongs 30a, 30b contact the plug contact element 19 electrically conductive by applying a spring clamping force.

FIG. 7 leaves the set FIGS. 4 to 6 recognize in the plan view in the final assembly position. Here again it is clear that at the free end of the contact tongues 13, a fork contact of two mutually parallel fork contact tines 30a, 30b is created, which limit an insertion slot 34 for a blade contact. It can also be seen that at the ends of the fork contact prongs 30a, 30b contact projections 35 are formed, which provide a defined contact point, on which the spring force of the resilient fork contact is concentrated.

The connector 7 is inserted by means of the seal 25 in the lamp housing 2, so that the interior of the lamp housing 2 is protected from moisture. This has already been associated with FIG. 2 described.

An improved recording of the lamp housing 2 on the lamp base 3 is in the FIGS. 8a) and 8b outlined). FIG. 8a ) shows a pre-assembly, in which a locking projection 36 on a free side edge of the lamp housing 2 in a free side edge of the z. B. made of sheet metal lamp base 3 is mounted. It can also be seen that preferably circumferential sealing material 37 is inserted between the cover 6 and the carrier 5. This sealing material 37 should be compressible and z. B. be a silicone or acrylic seal.

In the FIG. 8b ) is then the final assembly position recognizable. It is clear that now the lamp housing 2 is pivoted relative to the lamp base 3 and aligned parallel thereto. In this case, the locking projection 36 is then on the free side edge of the lamp base 3, so that the lamp housing 2 is latched to the lamp base 3. A corresponding latching is provided on the opposite, not shown, side of the luminaire.

The compressible seal 37 is compressed and seals the gap between the lamp base 3 and the carrier 5 and the lamp cover 6 of the lamp housing 2 from.

Claims (15)

1. Connector (7) for a set consisting of a conductor connection plug (9) and a connector (7), wherein the connector (7) has an insulating casing (16) and plug-type contact elements (19) in the insulating casing (16), and wherein the plug-type contact elements (19) are accommodated in a guide opening (29) in the insulating casing (16) of the connector (7) and extend at their free end in the direction of an open plug-in side of the guide opening (29) and can be oriented transversely with respect to a contact tongue (13) of a conductor connection plug (9), characterized in that guide slots (33) for plugging conductor connection plug (9) and connector (7) into each other are present in the side wall of the insulating casing (16) of the connector (7), which side wall forms the guide opening (29).
2. Connector (7) according to Claim 1, characterized in that the plug-type contact elements (19) have a contact spring which is bent in a U-shaped manner and is provided with a spring bend (21).
3. Connector (7) according to Claim 1, characterized in that a contact projection (23) which is provided for resting on or engaging in a contact tongue (13) protrudes from the one free end of a clamping limb (22) of the contact spring.
4. Set consisting of a conductor connection plug (9) and a connector (7) according to one of Claims 1 to 3, wherein the conductor connection plug (9) has an insulating casing (10) and conductor connection contact elements, each with at least one conductor connection contact (14) and an associated contact tongue (13), which are connected in an electrically conductive manner to each other, in the insulating casing (10), wherein the at least one contact tongue (13) projects transversely into an insertion channel which is formed by a receiving opening (15) for the plug-type contact elements (19), which receiving opening is formed in the insulating casing (10) of the conductor connection plug (9), is bounded with insulating walls and is open on an insertion side for the insertion of an associated plug-type contact element (19), and wherein the contact tongues (13) enter into spring force contact with one another in each case by means of an associated plug-type contact element (19) when the conductor connection plug (9) and the connector (7) are plugged one into the other.
5. Set according to Claim 4, characterized in that the contact tongues (13) have an insertion slot (34) for inserting a plug-type contact element (19) at the free end, wherein the insertion slot (34) is bounded by two fork contact prongs (30a, 30b), which extend parallel to each other, for forming a resilient fork contact.
6. Set according to Claim 4, characterized in that the plug-type contact elements (19) have a contact spring which is bent in a U-shaped manner and is provided with a spring bend (21).
7. Set according to Claim 6, characterized in that a contact projection (23) provided for resting on or engaging in a contact tongue (13) protrudes from a free end portion of a clamping limb (22) of the contact spring.
8. Set according to one of Claims 4 to 7, characterized in that the connector (7) is a lamp plug which is fitted into a lamp housing (2), and the conductor connection plug (9) is a voltage supply plug which is fastened to a light base (3).
9. Set according to Claim 8, characterized in that contact elements of the connector (7) are electrically connected to lamps (4) in the lamp housing (2), in particular to light-emitting diodes.
10. Set according to Claim 8 or 9, characterized in that a PE contact (28) protrudes from the light base (3) in the direction of the lamp housing (2), and a conductor connection contact element (14) has a PE contact portion provided for receiving and making contact with the PE contact (28).
11. Set according to one of Claims 4 to 10, characterized in that conductor connection contact elements each have, opposite the contact tongue (13), at least one spring clamping connection for the spring force clamping contact connection with an electrical conductor (8).
12. Conductor connection plug (9) for a set consisting of a conductor connection plug (9) and a connector (7) according to one of Claims 4 to 11, wherein the conductor connection plug (9) has an insulating casing (10) and conductor connection contact elements in the insulating casing (10), and wherein the conductor connection contact elements each have at least one conductor connection contact (14) and a contact tongue (13), which are connected in an electrically conducting manner to each other, wherein the contact tongues (13) project into a receiving opening (15) for the plug-type contact elements (19), which receiving opening is formed in the insulating casing (10) and is bounded by insulating walls, wherein the receiving openings (15) are open on an insertion side for the insertion of a plug-type contact element (19), and the insulating casing (10) of the conductor connection plug (9) is designed for the plugging of conductor connection plug (9) and connector (7) one inside the other in such a manner that a conductor connection space in the insulating casing (10) of the conductor connection plug (9), which conductor connection space accommodates the conductor connection contacts (14), can be arranged next to a connector (7), characterized in that guide slots (33) for the plugging of conductor connection plug (9) and connector (7) one inside the other are present in the side wall of the insulating casing (10) of the conductor connection plug (9), which side wall forms the receiving opening (15).
13. Conductor connection plug (9) according to Claim 12, characterized in that conductor connection contact elements each have, opposite the contact tongue (13), at least one spring clamping connection for the spring force clamping contact connection with an electrical conductor (8).
14. Conductor connection plug (9) according to Claim 12 and 13, characterized in that a PE contact (28) protrudes from the light base (3) in the direction of the lamp housing (2), and a conductor connection contact element (14) has a PE contact portion provided for receiving and making contact with the PE contact (28).
15. Conductor connection plug (9) according to Claim 12, characterized in that the contact tongues (13) have an insertion slot (34) for inserting a plug-type contact element (19) at the free end, wherein the insertion slot (34) is bounded by two fork contact prongs (30a, 30b), which extend parallel to each other, for forming a resilient fork contact.

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