DE202021103399U1 - Connection socket - Google Patents

Abstract

Connection socket (10) of a lamp
- With a housing (11) which forms an essentially circular cylindrical section which is provided as a threaded connector (18) with an external thread (19),
- With a first end face (12) which forms a device plug-in receptacle (13) and has a peripheral flange (17) whose diameter is greater than the diameter of the threaded connector (18),
- With a second end face (30) which is arranged on the end of the threaded connector (18) facing away from the first end face and has connection parts for connection conductors (38),
- With a screw nut (20) on the thread of the threaded connector (18), by means of which the connection socket can be fixed in a lamp housing wall by holding a wall section (21) between the screw nut (20) and the circumferential flange, characterized in that
- The threaded connector (18) of the connection socket (10) is provided with a blind hole-like recess from the second end face (30) in the direction of the first end face (12),
- The recess is used as a supply plug receptacle for a plug to be inserted in the insertion direction with connected connecting conductors (38).

Description

The invention relates to a connection socket of a lamp with a housing, which forms an essentially circular cylindrical section which is provided as a threaded connector with an external thread, with a first end face, which forms a device plug receptacle and has a circumferential flange, the diameter of which is larger than the diameter of the threaded connector , with a second end face, which is arranged on the end of the threaded connector facing away from the first end face and has connection parts for connecting conductors, with a screw nut on the thread of the threaded connector, by means of which the connection socket can be fixed in a lamp housing wall by placing a wall section between the screw nut and the circumferential flange is held.

More precisely, it is about a connection socket for LED street and path lighting, as described in the Zhaga Interface Specification book 18th , Edition 2.0 from November 2019 is set.

Such connection sockets are provided so that street and path lighting can be supplemented with additional modules at a later date. For example, the idea is to be able to retrofit presence sensors, radio network modules, twilight sensors or similar modules on street and path lighting via appropriately defined connection sockets.

For this purpose, the connection socket has a device plug receptacle which is arranged on the outside of the lamp. A threaded connector located on the back of the device plug receptacle is passed through a housing opening, a screw nut being exposed to the threaded connector from the rear to firmly hold the connection socket in the luminaire, so that part of the luminaire housing wall between a circumferential flange on the device plug receptacle side and the Screw nut is arranged.

On the side opposite the device plug receptacle - the back of the connection socket - the threaded connector forms a connection point with connection parts for connection conductors, which are used for power and voltage supply as well as signal transmission.

LED technology basically offers a multitude of possibilities to redesign the design of luminaire housings and, in particular, to create very flat and compact housings. The generic connection socket, in particular its threaded connector, requires a certain minimum length in order to be able to accommodate common luminaire housing wall thicknesses between the circumferential flange and screw nut and to offer the screw nut a secure fit on the threaded connector. In the case of particularly space-saving luminaire housing constructions, the connection conductors are plugged into the second end of the threaded connector in the form of individual conductors so that the effective length of the connection socket inside the luminaire housing is not increased by plug-in connectors.

However, this makes assembly more difficult and harbors the risk of incorrect polarity due to incorrectly inserted connecting conductors.

The object of the invention is to be able to fix the connection conductors by means of a plug connection in the connection socket even with a space-optimized housing design.

The object is achieved by a connection socket with the features of claim 1, in particular with its characterizing features, according to which the threaded connector of the connection socket is provided with a blind hole-like recess from the second end face in the direction of the first end face and the recess as a supply plug receptacle for one in the insertion direction the plug to be used with connected connecting conductors is used.

The essence of the invention is the idea of creating space for a connector to be used within the threaded connector. Therefore, the connection socket forms a blind hole-like recess on its rear side, the second end face, that is to say the end of the threaded connector lying within the lamp housing, which serves as a supply plug receptacle. At the bottom of the recess there are connection contacts that can be designed as contact fields or as openings for contact pins located in the bottom.

In this way, it is possible to connect the connection conductors for the voltage supply as well as for signal transmission to a plug connector and to insert this into the supply plug receptacle.

In the ideal case, the plug connector holding the connection conductor sits completely in the supply plug receptacle. However, it is conceivable that the plug connector is designed as an angled plug and the connecting conductors are led out of the plug connector rear at right angles to the direction of insertion. In this case, too, the overall length of the connection socket and the plug-in connector does not increase compared to the connection socket from the prior art that only accommodates single conductors, since this too leads away at right angles to the insertion direction Connection conductor increase the overall length by at least one connection conductor diameter.

At the same time, the length of the threaded connector is completely retained, so that it continues to ensure that the screw nut is securely seated on the threaded connector and that common luminaire housing wall thicknesses can be accommodated.

An advantageous embodiment provides that the threaded connector has a groove pointing in the direction of the device plug receptacle in its wall carrying the external thread. If a plug connector is provided that is completely seated in the supply plug receptacle, the connection conductors can be led out through the groove without increasing the effective length of the structural unit comprising the connection socket and plug connector.

For an incorrect polarity-proof arrangement of the connector in the supply plug receptacle, it is provided that the wall surrounding the blind hole-like recess forms a coding means for the correct alignment of a connector provided with connecting conductors, in particular if the coding means is designed as an uncurved wall section of the essentially circular-cylindrical threaded connector that extends in the insertion direction is.

The secure hold of the connector carrying the supply conductors in the supply plug receptacle is ensured by the fact that the wall of the blind hole-like recess forms a latching means, in particular a latching window, for latching holding of a plug provided with connecting leads.

• 1 die erfindungsgemäße Anschlussbuchse in einer ersten Seitenansicht,
• 2 die Anschlussbuchse gemäß 1 in einer zweiten Ansicht,
• 3 die Anschlussbuchse gemäß 1 in Ansicht auf die Gerätesteckaufnahme,
• 4 die Anschlussbuchse gemäß 1 in Ansicht auf die Versorgungssteckaufnahm e,
• 5 eine perspektivische Ansicht auf die Anschlussbuchse gemäß 1 mit Einsicht in die Versorgungssteckaufnahm e,
• 6 eine Seitenansicht auf einen Steckverbinder für eine Schlussleiter zum Einsatz in der Versorgungssteckaufnahme in erster Seitenansicht,
• 7 der Steckverbinder gemäß 6 in einer zweiten Ansicht,
• 8 der Steckverbinder gemäß 6 in Ansicht auf die Kontaktstifte,
• 9 der Steckverbinder gemäß 6 in Ansicht auf die Anschlussleiter tragende Rückseite,
• 10 der Steckverbinder gemäß 6 in perspektivischer Darstellung,
• 11 Darstellung einer Einbausituation der erfindungsgemäßen Anschlussbuchse nach 1,
• 12 die Darstellung des Zusammenwirkens von erfindungsgemäßer Anschlussbuchse nach 1 und Steckverbinder nach 6.

A better understanding and further advantages of the invention emerge from the following description of an exemplary embodiment. Show it:

• 1 the connection socket according to the invention in a first side view,
• 2 the connection socket according to 1 in a second view,
• 3 the connection socket according to 1 in view of the device connector,
• 4th the connection socket according to 1 in view of the power supply receptacle,
• 5 a perspective view of the connection socket according to 1 with a view of the power supply receptacle,
• 6th a side view of a connector for a final conductor for use in the supply plug receptacle in a first side view,
• 7th the connector according to 6th in a second view,
• 8th the connector according to 6th in view of the contact pins,
• 9 the connector according to 6th in view of the rear carrying the connection conductors,
• 10 the connector according to 6th in perspective view,
• 11 Representation of an installation situation of the connection socket according to the invention 1 ,
• 12th the representation of the interaction of the connection socket according to the invention according to 1 and connectors according to 6th .

In the figures, a connection socket according to the invention is denoted overall by the reference number 10 Mistake. The connection socket 10 , initially shown in the 1 - 5 , initially comprises a total of the reference number 11 designated housing, which in a first end face 12th a device connector 13th trains that in addition to contact openings 14th with internal connection contacts also mechanical fixings 15th for an extension module to be mounted 16 trains.

The first face 12th then forms a peripheral flange 17th from that opposite a housing 11 trained threaded connector 18th with external thread 19th is enlarged in diameter. The threaded connector 18th is essentially circular-cylindrical and has a screw nut 20th who have favourited a light housing wall section 21 between itself and the peripheral flange 17th takes up to the connection socket 10 to be anchored in the luminaire housing.

As can be seen from the figures, the mechanical fixing is 15th as the outer circumference of the device plug-in receptacle 13th arranged, bayonet-like undercut designed.

The representation according to 1 also shows an uncurved section of the threaded connector that is free of external threads and serves as a coding surface 22nd one from the threaded connector 18th trained supply plug receptacle 23 serves.

The representation according to 2 is similar to that in 1 . The connection socket 10 however, was rotated by about 90 °. This view shows that the threaded connector has a further section without an external thread. This is one in the direction of insertion ( X ) of a connector 24 running bridge 25th , the one with a rest window 26th is provided. A locking lug can be installed in the locking window 27 of the connector 24 immerse to inside the supply plug receptacle 23 (more on this later) to be determined.

3 shows a plan view of the connection socket 10 , in which first the contact openings 14th the device connector 13th are visible.

This is where the contacts of the expansion module 16 used and mating contacts by a rotary movement 28 in the contact openings 14th fed. A central centering hole 29 takes a plug-in axle of the expansion module 16 which is the physical axis of rotation for attaching the expansion module 16 by mechanical fixing 15th offers.

4th shows a view of the second end face 30th the connection socket 10 , i.e. on the device connector 13th opposite back of the threaded connector 18th . The inside of the threaded connector is hollowed out by a blind hole-like recess 31 extends within the threaded connector in the direction of the device socket. This blind hole-like recess is from a peripheral wall 32 which surrounds the external thread on its outside 19th of the threaded connector 18th wearing. The blind hole-like recess 32 forms the supply plug receptacle 23 of the threaded connector 18th and serves to accommodate the connector to be described later 24 , which thanks to the prescribed design in the threaded connector 18th can be brought in. In the ground 33 contact openings are found in the blind hole-like recess 34 , within which connection contacts 35 imprisoned. Contact pins 36 of the connector 24 dive into these contact breakthroughs 34 one to go with the connector contacts 35 to get in touch.

4th shows in addition, especially in connection with 5 that the uncurved edge section of the threaded connector 18th A coding surface not only on the outside, but also on the inside 22nd trains which in connection with the coding wall 40 of the connector 24 only a reverse polarity protected insertion of the connector 24 into the supply plug receptacle 23 enables. 4th also shows that from the threaded connector 18th trained and the latching window 26th containing bridge 25th also the inner circumferential contour of the supply plug receptacle 23 influenced and can thus also serve as a coding means.

The blind hole-like recess 31 , which the supply plug receptacle 23 forms is again in the perspective view of the connection socket 10 according to 5 shown. 5 shows particularly well how the blind hole-like depression develops 31 in the direction of the device connector 13th in the threaded connector 18th extends into it.

6th now shows a total of the reference number 24 provided connector on its contact carrier 37 rear connection conductor 38 are posted and its front side pins 36 wearing.

The the contact pins 36 load-bearing plug-in section 39 of the contact carrier 37 has a shape-complementary circumferential contour for the supply plug receptacle 23 the connection socket 10 on. The plug-in section 39 is consequently essentially circular-cylindrical, but has an in 6th Uncurved coding wall facing the viewer 40 as part of its perimeter wall. This is with the coding area 22nd the supply connector 23 align to the mating section 39 insert there so that the contact pins 36 in the contact breakthroughs 34 immerse to the connector contacts 35 to contact.

The peripheral wall of the plug-in section 39 then carries the locking lug 27 what both 6th as well as in particular 7th show, with the locking lug in the latter 27 facing the viewer. The latch 27 cooperates with the rest window 26th the supply connector 23 so that the connector used there 24 securely at the connection socket 10 is held.

8th shows a view of the direction of insertion ( X ) of the connector 24 front face of the plug-in section 39 which is the contact pins 36 arise from. This illustration also shows the coding wall 40 as well as the locking lug 27 of the connector 24 .

9 however, shows the rear side of the connector opposite the aforementioned end wall 24 , which is the connecting conductor 38 arise from.

thanks to 10 , the perspective view of the connector 24 the inclined viewer can also get a spatial idea of the location of the connector 24 winning components.

11 shows an application for the connection socket 10 . The lamp housing wall section is shown schematically and by way of example 21 of the lamp housing of a street lamp. The connection socket 10 is in a section of the wall section 21 arranged by the peripheral flange 17th and the nut 20th take up the luminaire housing wall section between them. The device connector 13th is accessible from the outside, so that there is an expansion module 16 how, for example, a motion or twilight sensor can be attached.

The threaded connector 18th on the other hand with the supply reception trained by him 23 is arranged in the interior of the lamp housing, so that the connector arranged there 24 can be used so that all connection conductors can be installed in one installation process 38 Protected against polarity reversal at the connection socket 10 can be connected.

Finally shows 12th the interaction of the connection socket 10 and connectors 24 , the connection socket 10 is shown here in section per se.

The sectional view of the connection socket 10 it can be clearly seen that the threaded connector 18th on its second face 30th , i.e. the edge of the connection socket 10 , a blind hole-like recess 31 trains that the supply plug receptacle 23 trains. As already described, the supply plug receptacle is located on the bottom 23 Contact breakthroughs 34 , behind those in the direction of insertion X Connection contact 35 are arranged. These are provided for the contact pins 36 of the connector 24 to establish a connection.

The supply connector 23 takes the plug-in section in the embodiment shown here 39 of the connector 24 and thus reduces the overall length from the connection socket 10 and connectors 24 compared to the prior art, which does not have the supply plug receptacle according to the invention 23 disposes.

A further reduction in the overall length can be achieved, for example, by pulling the connection cables out of the contact carrier at the side 37 of the connector 24 are led out or the contact carrier 37 only the plug-in section 39 includes.

List of reference symbols

10

Connection socket

11

casing

12th

first face

13th

Device connector

14th

Contact opening

15th

mechanical fixing

16

Expansion module

17th

Circumferential flange

18th

Threaded connector

19th

External thread

20th

Screw nut

21

Light housing wall section

22nd

Coding area

23

Supply stretch recording

24

Connectors

25th

web

26th

Rest window

27

Locking lug

28

Counter contact

29

Center hole

30th

second face

31

blind hole-like recess

32

Perimeter wall

33

floor

34

Contact breakthroughs

35

Connection contacts

36

Contact pins

37

Contact carrier

38

Connection conductor

39

Plug-in section

40

Coding wall

X

Insertion direction

Claims (4)

Connection socket (10) of a lamp - with a housing (11) which forms an essentially circular cylindrical section which is provided as a threaded connector (18) with an external thread (19), - with a first end face (12) which has a device plug receptacle (13 ) and has a peripheral flange (17), the diameter of which is greater than the diameter of the threaded connector (18), - with a second end face (30) which is arranged at the end of the threaded connector (18) facing away from the first end face and connection parts for connecting conductors (38) - with a screw nut (20) on the thread of the threaded connector (18), by means of which the connection socket can be fixed in a lamp housing wall by holding a wall section (21) between the screw nut (20) and the peripheral flange, characterized that - the threaded connector (18) of the connection socket (10) from the second end face (30) in the direction of the first end face (12) with a sackloc hard recess is provided, - the recess serves as a supply plug receptacle for a plug to be inserted in the insertion direction with connected connecting conductors (38). Connection socket (10) Claim 1 , characterized in that the wall surrounding the blind hole-like recess (31) forms a coding means (40) for the correct orientation of a plug provided with connecting conductors (38). Connection socket (10) Claim 1 , characterized in that the coding means is designed as a non-curved wall section of the essentially circular-cylindrical threaded connector that extends in the insertion direction. Connection socket (10) according to one of the preceding claims, characterized in that the wall of the blind hole-like recess (31) forms a latching means, in particular a latching window, for latching holding of a plug provided with connection conductors (38).

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