DE102012002587A1 - Connection unit for a light band - Google Patents

Abstract

Shown and described is a connection unit for a light band, which is formed by at least two mutually adjoining lamps, with a first connector having an insertion section for a through-wiring and a plug-in extension, wherein the insertion section is arranged in a first plane, and with a second A connector having an insertion section for a through-wiring and a plug-in receptacle, wherein the insertion section is arranged in a first plane and the plug receptacle of the second connector to the plug extension of the first connector is formed complementary to the receptacle, and with a departure for a supply line, by means of which one of Lights is supplied with voltage, wherein one of the plug connector forms a slot for a third connector, by means of which the supply line to the connection unit can be coupled.

Description

The invention relates to a connection unit for a light band, which is formed by at least two adjacently arranged lamps, with a first connector having an insertion section for a through-wiring and a plug-in extension, wherein the insertion section is arranged in a first plane, and with a second connector which has an insertion section for a through-wiring and a plug-in receptacle, wherein the insertion section is arranged in a first plane and the plug-in receptacle of the second connector is plug-complementary to the plug-in extension of the first connector, and with an outlet for a supply line, by means of which one of the lamps is supplied with voltage.

A strip of light is usually understood to mean lighting units which, as a rule - but not necessarily - illuminate large-area premises, in particular open-plan offices, supermarkets and large-scale and retail properties. As a rule, they comprise a receiving element designated here as a mounting profile or mounting rail, which can be designed, for example, as a U-profile.

The mounting profile usually carries connecting cables, which are designed via several interconnected profiles or over several interconnected individual lights in the form of a through-wiring. Individually arranged within the mounting profile lights are each supplied via a separate supply line, which is coupled to the through-wiring. In this case, not only an electrical voltage is fed via the supply line, in addition it is possible to conduct control signals to the lighting unit.

The individual connection lines which form the through-wiring and which are assigned to the mounting profiles or to the luminaires are coupled to one another via plug connectors. There are different solutions. Exemplary will first on the EP 1681747 B1 referenced, which shows a arranged on the mounting profile connector. In the present case, the latched in the mounting profile connector is additionally provided with a multi-pole terminal, by means of which individual wires of a supply line can be contacted with the through-wiring. In the EP 1681747 B1 This terminal is designed as a separate component, which is in addition to the connector of the through-wiring to attach to the mounting rail and to contact with the connector. While the connector is visibly arranged on the mounting rail, the terminal is covered by a lamp arranged on the mounting rail.

Out DE 10 2007 018 399 B4 It is known to attach to a ribbon conductor, which forms the through-wiring, a contacting device for individual wires of the supply line, which is in principle independent of the connectors for coupling individual portions of the through-wiring available.

Contact arms of this contacting device engage over the individual cores of the ribbon conductor and contain insulation displacement contacts. The insulation displacement contacts are in turn provided with connection terminals for cores of a supply line. The placement of the contacting device on the ribbon conductor establishes an electrical connection to the individual wires of the through-wiring by means of the insulation displacement contacts. Via the terminals for the supply line, the connection of the luminaire and a phase selection is realized.

The cited prior art is quite common in popular light bands and fulfills the purpose imposed on it. However, the assembly of the individual components of the known connection units and the connection of the supply lines is associated with a certain effort. In addition, individual parts of the connection units are usually arranged visible on the mounting rail. In the common lighting systems with mounting rails of several meters in length, including corresponding lighting units, which are usually provided with double-capped fluorescent tubes, these disadvantages are acceptable, or so far not significant or even noticed.

However, efforts are underway to provide easier-to-handle lightbar systems using smaller modules and novel bulbs. For these, the known connection units are less suitable, so that it is an object of the invention to provide a novel connection unit for light bands.

The object is achieved by a connection unit with the features of claim 1, in particular with the characterizing features, according to which one of the connectors forms a slot for a third connector, by means of which the supply line to the connection unit can be coupled.

The main advantage of the invention lies in particular in the slot for a third connector. This allows multi-core supply lines to connect the individual lights of the light strip with a handle to connect the through-wiring. This has considerable mounting advantages over the connection of individual strands to cable clamps. In this case, the third connector is pole-equal to the first or second connector of the terminal unit executed, which is also new and advantageous over the aforementioned prior art, since there usually only those poles are tapped, which are necessary for the operation of the individual light. The third connector according to the invention is therefore not only suitable for supplying the luminaire, but can also be used for feeding voltage and / or control signals and the protective conductor connection in the through-wiring. Again, the connection between the through-wiring and a feed line can be made with a handle.

In general, it is provided that the first and the second connector each form a slot for the third connector.

In particular, in the case of the flat-band conductors used generally for through-wiring, the connection unit is characterized in that the slot and the third connector has a plurality of plug contacts arranged side by side and the slots of complementary first and second connectors, each with a first and second Steckkodierung are provided, and that the third connector only forms a complementary to the first and second Steckkodierung third Steckkodierung.

In this specific embodiment, it is first advantageous that such a polarity reversal protection is formed, which clearly identifies both the first, as well as the second connector, with only a third connector both reverse polarity in the slot of the first and reverse polarity in the slot of the second Connector can be used. It should be noted that on the side of the first to third connector in each case at least one coding means is provided.

Based on the above-mentioned prior art also solves a connection unit according to claim 4, the object of the invention and is characterized essentially by the fact that at least one of the plug contacts is provided with a further contact portion which is electrically connected to the through-wiring terminal and the connection of a Supply line for at least one of the lights is used.

The advantage of the plug contact defined in claim 4 is to be seen in that he deviating from plug contacts from the prior art has an additional contact portion to which another plug contact can be attached.

It is conceivable that the further contact portion is formed as a plug-in extension or as a plug-in receptacle for connecting a further plug-in contact.

Furthermore, it is advantageous if both plug contacts have a further contact portion and the contact portions of both plug contacts are identical.

For manufacturing reasons, care was taken to ensure that the through-wiring connection terminal, the plug-in extension or the plug-in receptacle and the further contact section form a one-piece plug-in contact formed in the same material-cohesive manner.

It is provided that the through-wiring terminal on its side facing away from one Adereinführöffnung side for the purpose of protective conductor connection forms a protective conductor terminal, which can be contacted with a lamp housing.

Finally, a particular embodiment is characterized in that the plug contact is formed as a stamped and bent part of a suitable, electrically conductive material.

Incidentally, further advantages of the invention will become apparent from the following description of an embodiment. Show it:

1 : A schematic exploded view of a light band section in which the subject of the invention is used,

2 : Representation of the first and second connector together with conductor section of a through-wiring in side view,

3 : Item according to 2 in perspective view,

4 : the representation according to 2 including third connector in pre-assembly position,

5 : the representation according to 4 with plugged third connector,

6 : Representation of a first and second connector in the inserted state,

7 : the representation according to 6 with additional assignment of the slot with the third connector,

8a : Representation of the individual plug contacts of the plug connectors 1 to 3 in the preassembly position and side view in a first embodiment,

8b : the plug contacts according to 8a in a second embodiment,

9 : the plug contacts according to 8a and 8b when plugged in,

10 : a perspective view of the plug-in contact assemblies of the connectors 1 to 3, partly in pre-assembly position,

11 : the connector packages according to 10 when plugged in,

12 : a plan view of the first connector according to the invention,

13 FIG. 4 is a sectional view taken along section line AA in FIG 12 with plug contact,

14 , the view according to 13 without plug contact,

15 : a plan view of the second connector according to the invention,

16 FIG. 3 is a sectional view taken along section line BB in FIG 15 with plug contact,

17 : the view according to 16 without plug contact,

18 a top view of the third connector,

19 a side view of the third connector according to 18 .

20 : a bottom view of the third connector according to 18 ,

In the figures, a light band is indicated by the reference numeral 10 designated.

In 1 is a section of the light band 10 shown schematically in exploded view. This light band section 10 initially includes a mounting profile 11 , which is also referred to as a mounting rail. This is usually a to a light 12 open U-profile, which is attached to a ceiling. A light band 10 from the prior art comprises a plurality of light strip sections according to 1 , wherein a light band section according to 1 several lights 12 can hold.

The mounting rail 11 takes up the essential other components of the light band. These include, in addition to the already mentioned light 12 , the through-wiring 13 , which usually consists of individual sections. Here, such a through-wiring portion becomes a conductor 14 , in particular a ribbon conductor, formed at its ends with a first connector 15 and a second connector 16 is provided. To the first or second connector 15 . 16 of the through-wiring portion shown, plug-complementary connectors (not shown) of another light band portion are attached, and thus the through-wiring 13 educated. supply lines 17 grab the for the operation of the lamp 12 required electricity, the protective conductor connection and any control signals from the through-wiring 13 and lead them to the light 12 , feeders 18 lead the through-wiring electricity and control signals and the protective conductor connection. The feed-in line 18 According to the invention can supply to the supply 17 be formed identical to the invention.

rooflights 10 newer design will consist of several of the 1 composed of individual modules shown schematically. rooflights 10 from the prior art have mounting rails 11 on, which is usually several lighting elements 12 take up.

In 2 is a section of through-wiring 13 in its individual parts shown in side view. Between the first connector 15 and the second connector 16 is - unassembled - the ribbon conductor 14 settled. Its stripped ends 19 are for mounting in insertion sections 20 insert. The insertion sections form this 20 single insertion openings (s. 3 ), which are the stripped ends 19 of the ribbon conductor 14 record and later to be described plug contacts 40 . 50 . 60 . 70 respectively.

The first connector 15 forms at its introductory section 20 opposite side a plug-in extension 22 off, the second connector 16 instead has a plug-in receptacle 23 , Plug extension 22 and plug-in receptacle 23 are complementary to each other, so that the plug-in extension 22 in the plug-in receptacle 23 can dive to connect between the two connectors 15 and 16 manufacture. Each of the connectors 15 . 16 forms a slot 24 for a third connector 26 out. This is in the present embodiment on the same side of the connector 15 respectively. 16 arranged, which is also the introduction section 20 for the leader 14 formed. catch organs 25 - here in the form of snap arms - Serve to secure the later to be described third connector 26 ,

As seen from the perspective view of the section of the through-wiring 13 can be seen forms the plug-in extension 22 single, approximately tube-like receiving spaces, in their number of the number of individual cores of the ribbon conductor 14 correspond. The plug-in receptacle 23 is also made complementary in this regard.

4 again shows the section of the through-wiring 13 , but here with assembled ribbon cable 14 , Shown is also the third connector 26 , which - intended for insertion in the slot 24 of the second connector 16 - Is located in a pre-assembly and together with the partial supply conductor 28 the supply line 17 forms.

Out 4 It can also be seen that both the first and the second connector 15 . 16 divided into three functional levels. The first level E1 is used to connect the ribbon conductor 14 and includes primarily the introductory section 20 with its wire entry openings 21 , In a second level E2 is the slot 24 for the third connector 26 whereas, finally, in a third level E3 the plug-in extension 22 or the plug-in receptacle 23 are located.

5 corresponds essentially to the representation of the 4 , only that the third connector 26 in his slot 24 of the second connector 16 seated.

Finally it will open 6 directed. This shows the first and second connectors 15 . 16 in mated condition. The plug-in extension 22 is in the plug-in receptacle 23 immersed, resulting in both connectors 15 . 16 located plug contacts 40 . 50 . 60 . 70 be in electrical connection.

7 shows the representation of 6 , supplemented with the third connector 26 , In the slots 24 the connector 15 . 16 each is a third connector 26 inserted. The catch organ 25 of the respective first and second connector 15 . 16 overlaps a latching hook 29 to the third connector 26 in the slot 24 to anchor. For clarity, the introduction sections 20 blank and the associated ribbon cable 14 or supply conductor 28 not shown.

The in 7 shown plug state results, for example, in the transition from a light band module to the next. There are the connectors 15 . 16 . 26 the individual through - wiring sections for supplying the individual strip light modules with electricity and control signals as well as protective conductor connection in the in 7 coupled manner shown.

At the same time in the case shown here concretely by means of the third connector 26 one supply line each 17 or a feed line 18 inserted, from which electricity and control signals for through-wiring 13 or from the through-wiring 13 to one light each 12 are guided.

The first connector 15 and the second connector 16 has several contact chambers 30 within, within which one of the number of poles of the ribbon conductor 14 corresponding number of plug contacts 40 . 50 . 60 . 70 is to be discussed below.

In the 8a and 8b are these plug contacts 40 . 50 . 60 . 70 shown in detail. Here are the paper in terms of the 8a and 8b left-side plug contacts the second connector 16 assigned and the right-side plug contacts the first connector 15 , The terms "right side" and "left side" refer to the auxiliary line H1 in the 8a and 8b ,

In the 8a On the left side of the auxiliary line H1 is first the line connector 40 of the second plug contact 16 shown. It initially includes a through-wiring terminal 41 , a plug-in extension 42 and another contact section 43 , which is the connection of a supply plug contact 80 serves. The through-wiring terminal 41 points to her the plug-in extension 42 opposite side an Adereinführöffnung 44 on, through which the stripped end 19 a core inserted and in the area of a clamping leg 45 arrives. The clamping leg 45 holds the wire in electrical contact in the through-wiring terminal 41 ,

In principle, the right side plug contact is similar 50 of the first connector 15 similarly constructed. This will be referred to below as a line socket 50 designated.

The line socket 50 also has a through-wiring terminal 51 as well as another contact section 53 , In deviation to the line connector 40 is in place of the plug-in extension 42 the line socket 50 with a plug-in receptacle 52 provided to the plug-in extension 42 of the cable connector 40 is formed complementary to the plug. Like, for example 11 it can be seen is the plug-in receptacle 52 Concretely formed by two clamped clamping legs against each other, the plug-in extension 42 between them. Also the through-wiring terminal 51 the line socket 50 has a clamping leg 55 leading to an insertion opening 54 is arranged adjacent. The wire entry opening 54 is the plug-in 52 arranged opposite. As already to the line connector 40 executed, holds the clamping leg 55 a wire electrically contacting the line socket 50 ,

In the specific embodiment, each first connector 15 six juxtaposed cable sockets 50 in each case a contact chamber 30 on. Every second connector 16 points in his contact chambers 30 correspondingly associated cable plug 40 on. This serve cable connector 40 and cable socket 50 Not only the power supply, but can also be used for the connection of wires, via which control signals are fed.

In addition to the aforementioned plug contacts 40 . 50 , are specially designed plug contacts 60 . 70 intended for a protective conductor. On the side of the second connector 16 is a protective conductor plug for this purpose 60 provided with through-wiring terminal 61 and plug-in extension 62 , The through-wiring terminal 61 has a wire entry opening 64 and a clamping leg 65 on. The functionality of the aforementioned components corresponds to that of the line connector 40 was explained. Finally, also the protective conductor plug 60 another contact section 63 on. The latter is from a protective conductor plug contact 90 the supply line 17 or feed line 18 contacted.

In principle, the same way is the protective conductor plug receptacle 70 of the first plug contact 15 built up. It also has a through-wiring terminal 71 with wire entry opening 74 and clamping legs 75 , In addition, another contact section 73 and one of the plug-in extension 62 complementary plug socket 72 intended.

Protective conductor connector 60 and protective earth plug-in receptacle 70 are different from line connectors 40 and cable socket 50 essentially in their sizing. As can be seen from the auxiliary lines H1 to H7, the plug-in extensions are 62 . 63 and 73 or the plug-in receptacle 72 towards their counterparts 42 . 43 . 52 and 53 trained longer. When mating the first and second connectors 15 . 16 rush plug-in extension 62 and plug-in receptacle 72 the plug-in extension 42 or the plug-in receptacle 52 so that the protective conductor is contacted in front of the other conductors.

The same applies to the plug-in receptacles of the protective conductor plug contacts 90 in comparison to the supply plug contacts 80 , This ensures that the protective conductors are always contacted in front of the other conductors.

Then let's go to a previously unmentioned component of the protective conductor plug 60 directed. This is a protective conductor terminal 66 , the alignment equal to the clamping leg 65 the protective conductor plug 60 aligned, but in the plane of the through-wiring terminal 61 is arranged. When mounting the second connector 16 on a mounting rail 11 goes the protective conductor terminal 66 an electrical connection with the mounting rail 11 one yourself.

9 shows the plug contacts 40 . 50 and 80 in mounted position. Illustrative illustration are single wires of the through-wiring conductor 14 and the supply line 17 or feed line 18 shown. In the 10 and 11 are the plug contacts 40 . 50 . 60 . 70 . 80 and 90 shown in perspective view and arranged in packets such as they einliegen in the contact chamber of the first to third connectors. Out 10 In particular, it can be seen that the protective conductor plug contacts 90 the supply plug contacts 80 are advanced. In addition, in the 11 shown how the individual plug contacts 40 . 50 . 60 . 70 . 80 and 90 Contact each other when the first and second connectors 15 . 16 with attached third connectors 26 are composed.

According to the invention, the plug contacts 40 . 50 . 60 . 70 . 80 and 90 formed as a stamped and bent part and can therefore be rational and easy to manufacture.

12 shows a plan view of the first connector 15 , The plug-in extension 22 consists of several individual sockets 31 , each having a cavity for a plug-in receptacle 52 train (s. 13 ).

In 13 is the first connector 15 according to section line AA in 12 cut, allowing insight into the contact chamber 30 and the in-line cable socket 50 can be taken. With regard to the individual components of the cable socket 50 Reference is made to the preceding description thereof.

14 shows the view of 13 omitting the line socket 50 allowing insight into the contact chamber 30 can be taken. Attention should be drawn in particular to the conically tapered insertion opening of the insertion section 20 , which is the stripped wire of the through-wiring terminal 51 supplies.

15 shows a plan view of the second connector 16 , The plug-in receptacle 23 has a continuous, uninterrupted wall, within which the plug-in extensions 42 the line connector 40 einliegen. With regard to the individual components of the cable connector 40 , as in the sectional view according to section line BB in 15 in the contact chamber 30 in 16 Reference is made to the foregoing.

The representation of the 17 which of those 16 , but without cable plug 40 , corresponds, one takes an insight into the contact chamber 30 of the second connector 16 , Again, is on the tapered insertion of the insertion 20 to refer to the individual vein of the individual leader 14 the through-wiring terminal 41 supplies.

The 18 to 20 show the third connector 26 in top view, side view and bottom view. The slots 24 from the first and second connectors 15 . 16 each have a coding unit, which with a corresponding coding of the third connector 26 corresponds. This will ensure that the third connector 26 whether he is in the slot 24 of the first connector 15 or in the slot 24 of the second connector 16 is to be used, can only be used in correct Polausrichtung.

The special feature of the plug-in coding of the first, second and third connectors 15 . 16 . 26 is to see that a simple rotation of the third connector to a transverse to the conductor insertion direction X directed, ie transversely to the connector 26 arranged contacts 80 . 90 directional transverse axis Q is 180 degrees to pivot to plug and polarity reversal compatible to the respective first and second connector 15 . 16 to be aligned.

To make this clear to the user or a fitter, has the third connector 26 in the area of its existing on the top and bottom latch hook 29 via another visible, tactile and mechanically acting assembly coding 32 ,

On the side of the third connector 26 becomes the mounting coding 32 by coding ribs 33 formed on one side as a roof or arrow-like support and on the opposite side of the third connector 26 are applied as about semicircular support on the surface, as in particular from the 18 and 20 is apparent.

The first connector 15 forms at his catching organ 25 a coding nose 34 out (s. 12 ) and in the same way is also on the part of the second connector 16 a coding nose 34 formed (s. 15 ). How out 12 and 15 it can be seen that is a coding nose 34 of the first connector 15 formed arrow-like, where against the coding nose 34 of the second connector 16 has an approximately semicircular edge. The coding noses 34 from the first connector and second connector, respectively 16 are in this respect to the respectively associated coding ribs 33 on the side of the third connector 26 formed congruent. This congruence of shape ensures both a visible, as well as a tactile and finally also - at least to a limited extent - a mechanical plug-in coding, which additionally or alternatively to the coding of the actual plug-in elements on the part of the connector 15 . 16 . 26 is available.

The main advantage of the connection unit according to the invention lies in its modularity with a small number of different components and in the through the connector 15 . 16 . 26 given ease of installation.

LIST OF REFERENCE NUMBERS

10

trunking

11

Mounting profile / mounting rail

12

lamp

13

Through wiring

14

ladder

15

first connector

16

second connector

17

supply line

18

feeder

19

stripped ends of 14

20

insertion

21

Adereinführöffnung

22

Plug extension

23

plug-in receptacle

24

slot

25

detent member

26

third connector

27

housing spaces

28

supply lines

29

Latch hook of 26

30

Contact chamber of 15 or 16

31

plug nose

32

assembly coding

33

coding ribs

34

keying

40

cable plug

41

By wiring terminal

42

Plug extension

43

further contact section

44

Adereinführöffnung

45

clamping leg

50

Line socket

51

By wiring terminal

52

plug-in receptacle

53

further contact section

54

Adereinführöffnung

55

clamping leg

60

Protective conductor connector

61

By wiring terminal

62

Plug extension

63

further contact section

64

Adereinführöffnung

65

clamping leg

66

Ground terminal block

70

Protective conductor plug receptacle

71

By wiring terminal

72

plug-in receptacle

73

further contact section

74

Adereinführöffnung

75

clamping leg

80

Supply plug contact

90

Protective conductor plug contact

E1

first floor

E2

second level

E3

Third level

H1

ledger line

H2

ledger line

H3

ledger line

H4

ledger line

H5

ledger line

H6

ledger line

H7

ledger line

X

Head insertion direction

Q

transverse axis

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1681747 B1 [0004, 0004]
• DE 102007018399 B4 [0005]

Claims (9)

Connection unit for a light band ( 10 ), which consists of at least two luminaires ( 12 ) is formed, with a first connector ( 15 ), which contains an introduction section ( 20 ) for a through-wiring ( 13 ) and a plug-in extension ( 22 ), wherein the insertion section ( 20 ) is arranged in a first plane (E1), and with a second connector (E1) 16 ), which contains an introduction section ( 20 ) for a through-wiring ( 13 ) and a plug-in receptacle ( 23 ), wherein the insertion section ( 20 ) is arranged in a first plane (E1) and the plug-in receptacle ( 23 ) of the second connector ( 16 ) to the plug-in extension ( 22 ) of the first connector ( 15 ) is complementarily formed, and with a departure for a supply line ( 17 ), by means of which one of the lamps ( 12 ) is supplied with voltage, characterized in that one of the connectors ( 15 . 16 ) a slot ( 24 ) for a third connector ( 26 ), by means of which the supply line ( 17 ) can be coupled to the connection unit. Terminal unit according to claim 1, characterized in that the first and the second connector ( 15 . 16 ) one slot each ( 24 ) for the third connector ( 26 ) train. Connection unit according to one of the preceding claims, characterized in that the slot ( 24 ) and the third connector ( 26 ) a plurality of juxtaposed plug contacts ( 40 . 50 . 60 . 70 . 80 . 90 ) and the slots ( 24 ) of complementary to each other plug-formed first and second connectors ( 15 . 16 ) are each provided with a first and second plug coding and that the third connector ( 26 ) merely forms a third plug-in coding complementary to the first and second plug-in coding. Connection unit for a light band ( 10 ), which consists of at least two luminaires ( 12 ) is formed, with a first plug contact ( 40 . 60 ), which in a first plane (E1) has a through-wiring terminal ( 41 . 61 ) and one with the through-wiring terminal ( 41 . 61 ) electrically connected plug-in extension ( 42 . 62 ) and with a second plug contact ( 50 . 70 ), in a first level (E1) a through-wiring terminal ( 51 . 71 ) and one with the through-wiring terminal ( 51 . 71 ) electrically connected plug-in receptacle ( 52 . 72 ), wherein the plug-in receptacle ( 52 . 72 ) complementary to the plug-in extension ( 42 . 62 ), characterized in that at least one of the plug contacts ( 40 . 50 . 60 . 70 ) with another contact section ( 43 . 53 . 63 . 73 ) connected to the through-wiring terminal ( 41 . 51 . 61 . 71 ) is electrically connected and the connection of a supply line ( 17 ) for at least one of the lamps ( 12 ) serves. Terminal unit according to claim 4, characterized in that the further contact section ( 43 . 53 . 63 . 73 ) as a plug-in extension or as a plug-in receptacle for connecting a further plug-in contact ( 80 . 90 ) is trained. Terminal unit according to claim 4 or 5, characterized in that both plug contacts ( 40 . 50 . 60 . 70 ) another contact section ( 43 . 53 . 63 . 73 ) and the contact sections ( 43 . 53 . 63 . 73 ) of both plug contacts ( 40 . 50 . 60 . 70 ) are formed identically. Terminal unit according to one of claims 4 to 5, characterized in that the through-wiring terminal ( 41 . 51 . 61 . 71 ), the plug-in extension ( 42 . 62 ) or the plug-in receptacle ( 52 . 72 ) and the further contact section ( 43 . 53 . 63 . 73 ) a material unit material fit formed, one-piece plug contact ( 40 . 50 . 60 . 70 ). Terminal unit according to claim 7, characterized in that the plug contact ( 40 . 50 . 60 . 70 ) is formed as a stamped bent part of a suitable, electrically conductive material. Terminal unit according to one of the preceding claims, characterized in that the through-wiring terminal ( 61 . 71 ) on its side facing away from an Adereinführöffnung a protective conductor terminal ( 66 ) forms, which is contactable with a lamp housing.

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