EP2059718B1 - Connecting device for lamps - Google Patents

Abstract

All ceiling lamps can be installed and exchanged very quickly without major drilling and electrical work by using a combined mechanical-electrical coupling (3).

Description

1. Application

The invention relates to a connection device for lights, in particular ceiling lights.

II. Technical background

If a luminaire is to be mounted on the ceiling of a room, an electrical cable is usually led out of the ceiling on site, which usually opens into a flush-mounted box made of plastic, which is embedded as a flat pot in the ceiling, sometimes also a surface-mounted box , This flush-mounted box is used only to accommodate the cable end when not in use and to be able to close the flush-mounted box by a plastic lid visually appealing.

If, on the other hand, a luminaire is to be mounted, a hook must be screwed into the ceiling, usually through the flush-mounted box, in order to suspend the luminaire.

About a cover, which overlaps the flush box from the diameter and along the central rod of the lamp z. B. can be pushed up, then the whole device - after connecting the electrical cable via luster terminals - covered by the spout is pushed up to the ceiling.

Another possibility is that a fixing unit is provided on the lamp, which is applied directly to the underside of the ceiling and screwed with this, then usually radially outside the circumference of the flush-mounted box, which then must be paid during drilling, the in the Do not damage the ceiling to the flush-mounted box of electrical cables.

Again, then this mechanical attachment must be visually covered by a pushed-up grommet.

Among other things, these works are therefore usually complicated and cause dirt, since mounting holes, hooks etc. must be readjusted for each light. It is also difficult to realize the suspension so close to the ceiling that the vertical usually short cover spout also covers the suspension.

In addition, the electrical cables must be connected to the luminaire via luster terminals, which also frequently causes problems. Especially if the cable end projecting from the ceiling is very short, but also if it is very long, as it can then be difficult to stow in the unit invisible.

The EP 0 895 023 discloses a coupling for the attachment of a ceiling light, in which at the same time an electrical contact and a mechanical connection is made by engagement when engaging.

III. Presentation of the invention a) Technical task

It is therefore an object of the invention to provide a connection device that allows a quick, easy, safe and dirt-free mounting and dismounting of lights, especially ceiling lights.

b) Solution of the task

This object is solved by the features of claim 1. Advantageous embodiments will be apparent from the dependent claims.

The combined mechanical and electrical quick coupling between the building and the lamp, both the lamp is mechanically held by a single coupling and their connection and electrically connected, which drastically reduces the time required for mounting and dirt and drilling completely avoids.

By the building unit, designed as Unterputzeinheit or Aufputzeinheit, while the mechanical coupling contains or receives, after the only necessary once attaching the building unit, formed z. B. as Unterputzeinheit - which is hereinafter referred exclusively without limiting the invention thereto - when changing the lamp no re-drilling more necessary.

In z. As the flush-mounted box, the local coupling half is preferably releasably secured, especially to facilitate the connection of the protruding from the wall, opening in the flush box electrical cable.

With a coupling half fixedly arranged in the flush-mounted socket, there must be sufficient space around this coupling half in order to be able to mount the cables within the flush-mounted box without temporarily removing the coupling half.

Preferably, the cables are not attached to the coupling half by means of conventional screw terminals, which is time-consuming and requires a prior stripping of the cable, but by simply inserting the not stripped, untreated cable ends in terminals, the z. B. by spring preload contact the cable through the insulation and hold.

The flush box is preferably pot-shaped and can in the building ceiling by screwing or in the masonry laterally projecting retention nose, if the flush box in the production z. B. the building ceiling are installed directly with, be fixed.

The subsequently possible screwing can be done either through the bottom of the pot-shaped flush-mounted box or through screw holes, which are arranged outside around the open end of the flush-mounted box flange.

The flush-mounted box can have a towering from the ground central bolt, which can serve on the one hand the correct positioning of the lamp attached to the part of the coupling, but also in its free end may directly contain the electrical part of the coupling, especially if the electrical part of the clutch from central arranged, coaxial annular or centrally point-shaped contacts, as they are often used for example in removable electric kettles.

The mechanical part of the clutch preferably further comprises a raster device in order to avoid unintentional release of the mechanical clutch. In this mechanical part of the coupling can also engage a cover with corresponding counter-elements, which serves to close the flush-mounted box if there is no lamp connected.

The mechanical engagement, via which the electrical connection is to be produced at the same time, can be realized by different movements:

In a purely axial engagement of the attached to the lamp coupling part is at least partially inserted axially into the flush-mounted box and locked there in corresponding mechanical locking elements, for example, formed on the central bolt or in the inner peripheral walls of the cup-shaped flush box.

If the electrical part of the clutch is not rotational position-dependent, z. B. due to the centrally located, coaxial annular electrical contacts, and the mechanical coupling does not have to be introduced rotational position dependent.

If a Drehlagen proper introduction forced by over the circumference non-circular contour of the mechanical coupling, z. As a positioning lug at a certain point of the circumference, due to the then always correct rotational position and the electrical contacts at defined points of the circumference can be formed as a single plug for the individual phases and neutral, which are housed in the end face of the mechanical coupling.

However, if the mechanical fixation is effected by a rotary movement, for example in the case of a bayonet closure or by means of a simple screw thread, it is preferable to always provide coaxial, annular electrical contacts as electrical contacts.

Only with a bayonet closure defined end positions are approached, so that there also simple plug contacts for electrical contacting in the locked end position of the bayonet lock can be provided.

The coupling half to be provided on the luminaire may be permanently fixed to the luminaire, above all if the connecting device according to the invention has become standard, but preferably it should be retrofittable to any luminaire and thus in turn mechanically fixable to both terminals and terminals for the out of the lamp have cables that are in turn optically coverable to the room side.

In a preferred embodiment, in particular according to claim 14 and following, a centrally arranged to the longitudinal axis, coaxial annular electrical contact is used for each required electrical contact in the electrical part of the coupling in at least one of the two coupling halves, whereby the two coupling halves in any rotational position the longitudinal axis can be inserted into each other, and yet always a reliable electrical contact is achieved.

This does not exclude that in one and the same electrical contact in both halves of the coupling such annular electrical contacts are provided, but this usually increases the manufacturing cost of the connection device.

For this purpose, one half of the coupling is designed as a socket and the other half of the coupling as a plug fitting into the socket, each having a round cross section and thus can be axially plugged together in different relative rotational positions.

Preferably, however, between the two halves of the clutch, ie connector half and half socket, a rotation present, which acts against each other at least in the retracted or partially inserted and latched state of the two halves, for example in the form of a splined profile on the two parts, ie an internal toothing on the socket part and an outer toothing on the plug part, which engage in the inserted state and prevent rotation of the two parts against each other.

This is especially necessary in the attachment of sconces, but also of non-rotationally symmetrical suspension lights, in which the rotational position once made to be permanently mounted building unit to be maintained.

In order to comply with a radial positioning, either the plug part or the female part of the clutch or both are formed self-centering in the other part.

For the mechanical coupling in one half of the coupling an annular projection and in the other part at least two, in particular with respect to the central longitudinal axis 10 radially opposite or evenly distributed over the circumference, radially movable retaining lugs present, the axial coupling of the two coupling halves behind the engage annular projection and result in the axial direction due to the spring bias of the retaining lugs in the direction of the locked position locking in the axial direction of the two coupling halves.

The retaining lugs can be moved by externally accessible actuators, such as push buttons, by the user in the deactivated position, and then the two halves of the clutch are axially separated from each other again.

Preferably, the building unit is formed as a socket part, so that the annular projection is in a socket inwardly projecting ring and the formed on the part designed as a plug unit retaining tabs in the latching position radially outwardly behind this inner open ring projection.

The actuating elements for releasing the retaining lugs can then be arranged, for example, in the outer periphery of the lamp unit, which is freely accessible from the outside, even in the latched state.

In this case, the socket unit, in particular when it comes to the building unit, a cup-shaped, closed at the rear end socket, which in training as a flush-mounted box at the open end encircling, wide, having annular plate-shaped flange in which has screw holes for screwing this building unit to the building.

These glands can be covered by a diaphragm plate with a preferably cranked edge, wherein the free inner diameter of the cranked edge corresponds to the outer diameter of the annular flange plate, so that the diaphragm plate can be attached to this bolted to the building flange and preferably snapped.

The electrical terminal block, in which the electrical terminals are clamped for the wires of the leading cable, and which in turn are electrically conductively connected to the electrical contacts in the corresponding coupling half, is in the socket part preferably outside the socket, approximately at an angle between the back of the flange and outside of the wall of the socket of the flush-mounted box, preferably fixed, so that the electrical connection from the terminal block to the individual electrical contacts of the corresponding coupling half is already factory pre-assembled. The user must therefore contact only the ends of the individual wires of the cable in the contact points of the terminal block, either conventionally by screwing the stripped ends in corresponding screw terminals or by inserting non-stripped wire ends in spring-loaded, provided with a blade contact terminals. Thereafter, the user merely has to insert the sub-plumbing unit into the correspondingly sized hole provided in the ceiling or the wall, and screw the flange of the sub-plastering unit to the building, and attach the panel plate to cover the screw connections.

Then, when the luminaire unit is mounted on the corresponding luminaire, the user merely has to plug the luminaire unit of the luminaire into the mounted building unit for mounting the luminaire, and the lamp is mounted ready for operation.

The plug part of the coupling, which is in particular the lamp unit, has a free end, ie frontseitigem insertion part, which is completely inserted into the socket part, and a rear feed part, which projects in the inserted, latched state from the socket part and the supply and the Connecting the cable z. B. from the lamp, serves.

Between insertion part and feed part a transverse to the longitudinal axis stop plate is formed, which serves as a stop when inserted into the socket and on the other hand also serves a shock protection in the inserted and locked state of the two coupling halves, as they radially far beyond the annular joint between the female part and insertion part of the Plug part protrudes and the smallest possible distance, for example, 1 mm or less occupies the end face of the socket part. At a radial projection of z. B. at least 10 mm and an axial distance of about 1 mm, it is not possible even with a tool to reach the lying in the inner periphery of the female part electrical contacts and to obtain an electric shock.

Preferably, insertion part, stop plate and supply part are integrally formed together as the main body of the plug part of an electrically non-conductive material, in particular plastic.

The insertion part, which also carries the electrical contacts of the plug part, is cylindrical corresponding to the inner contour of the socket part, optionally with longitudinally successively stepped diameters, but is also a slightly conical, rotationally symmetrical design on the book part and plug part, in particular the insertion part of the plug part, possible.

Preferably, however, the insertion part is cylindrical and has on the free end face of the cylinder on a centrally projecting also cylindrical extension of reduced diameter. On the circumference of the cylindrical extension, So the small outer diameter, in particular as a circular circumferential electrical contact, a first phase can be contacted.

From the cylindrical circumference with a large diameter, that is to say the main part of the insertion part, in the latched state only the retaining lugs project radially outward.

In the outwardly facing surfaces of the retaining lugs, the electrical contacts for the second phase can be accommodated, which has the advantage that because of the already existing spring preload in the latched state of the retaining lugs an active contact pressure of these contacts to the mating contact is present and not additionally realized must be, as with the other contact points, in which each electrical contact in the closing direction of the contact must be biased by spring force.

The third electrical contact can z. B. at a point of the circumference radially protruding from the cylindrical outer circumference, for example, be formed close to the stop plate.

The mating contacts are then formed as a particular annular peripheral contacts in the inner peripheral surfaces of the corresponding stepped socket of the female part.

Back to the plug part, the retaining lugs are arranged at the front end of the base body radially outwardly biased levers which are pivotally mounted in the main body near or at the rear end, so the feed part about a transverse axis and preferably over the entire length of the body extend to near the front end of the insertion part.

These biased levers are guided laterally between the mutually parallel mounting walls, which extend in the longitudinal direction and by a also in the longitudinal direction, in the radial central region, the two mounting plates interconnecting central body together form the feed.

The levers have, for example, at their rear end outwardly projecting bearing journals which are mounted in these two mounting plates.

For biasing the lever and thus the retaining lugs in the activated position, so in this case radially outwards, they have on the opposite side integrally formed with the levers, obliquely projecting, resilient tongues of the same material, usually plastic, on which supported on the body.

The supply part further includes a terminal block on which the cable coming from the lamp is electrically clamped in a corresponding number of terminal contacts and this terminal block is preferably on the outside of one of the mounting plates via a fastening device, such as Aufstecknasen striving in the radial direction to the longitudinal axis , attached.

The cable itself is inserted and fixed by a longitudinal groove in the central body which is open to the opposite outside of the other mounting plate by means of a cable clamp which can be screwed onto this other mounting plate outside and clamped the cable in the groove.

The plug part, in this case, the lamp unit, further comprises a cup-shaped, covering housing, which is pushed from the back to the plug unit and in the fully deferred state, the insertion part and the existing assemblies there and therefore extends to the stop plate and thus the visible Outside surface at the inserted into the building unit lamp unit represents.

In the pot-shaped housing therefore on the one hand in the bottom a central opening for the passage of the cable is present and in the side walls matching openings from which the actuating elements, in particular the push buttons project, which are outwardly projecting one-piece extensions of the resilient lever the retention lances act.

Accordingly, the pot-shaped housing also does not necessarily lock on the stop plate - although this is the preferred design - but this housing part is axially fixed by the spring back from the housing part, spring-loaded levers protruding.

Such a lighting unit can be arranged at any time in such suspended luminaires. In which of the lamp only leads the cable to the ceiling, which not only electrically connects the lamp unit, but also mechanically carries.

However, if the luminaire is a luminaire with a so-called lamp base, that is to say a cup-shaped cover to be attached to the ceiling, to which metal rods or pipes usually lead from the luminaire, the luminaire unit can be installed in such a luminaire base be mounted with the help of a mounting bracket, which, however, may need to be adapted to the dimensions of the lamp base:

The retaining clip comprises on the one hand a central plate with a central opening through which the insertion part of the plug part of the lamp unit can be inserted and which then bears against the stop plate.

From this central plate rich radially and / or axially, preferably flexible and thus flexible, abstrebende attachment tabs to the outside or rear, which can be optionally shortened to the required length and bolted to the lamp base and which is preferably a perforated tape.

Therefore, this mounting bracket is preferably made of a stable material such as metal or solid plastic.

The aim of this installation is that the trained as a plug part lamp unit is located with its insertion part within the lamp base and the insertion part protrudes from it upwards and can be plugged into the building unit.

c) embodiments

Fig. 1:

eine Bauform der Gebäudeeinheit, und

Fig. 2:

eine Bauform der Leuchteneinheit, passend zur Gebäudeeinheit der Figur 1, und

Fig. 3:

eine Montageklammer.

Embodiments according to the invention are described in more detail below by way of example. Show it:

Fig. 1:

a type of building unit, and

Fig. 2:

a design of the lighting unit, matching the building unit of FIG. 1 , and

3:

a mounting bracket.

FIG. 1 shows the building unit, designed as Unterputzeinheit or Aufputzeinheit, consisting essentially of the embedded in the building ceiling 20 flush box 4, which abuts with its free end on the outside circumferential flange 7 on the underside of the ceiling and there through screw holes 8 through in the ceiling 20 mechanically sufficiently strong to be able to accommodate the weight of the lamp.

For this reason, the flush-mounted box 4 must be made of sufficiently stable material, if appropriate of a correspondingly large-dimensioned plastic, since all electrically conductive metals are only second choice here.

The luminaire may be a suspended luminaire, in which it is arranged at the upper end of the suspension rod, or else a luminaire which is not suspended, so that the luminaire unit 2 is located directly on or in the upper side of the luminaire.

The FIGS. 1 and 2 show preferred embodiments of the building unit 1 ( FIGS. 1 ) and the lighting unit 2 ( Figures 2 ).

The lamp unit 2 is the one coupling half 3b and the building unit 1, the other coupling half 3a of a combined both mechanical and electrical coupling, the engagement of which represents both a mechanical and electrical connection between the two coupling halves.

As the Figures 2 show, the lamp unit 2, at least the insertion part 31, formed as a plug part, while the building unit 1 is formed according to the figures 1 as a socket part.

In the Figures 2 is the lamp unit 2 in the FIG. 2a in longitudinal section along the longitudinal axis, ie the axial direction 10, cut, and in Figure 2c in the longitudinal direction at 90 ° to the angle FIG. 2a. FIG. 2b shows the side view in the same direction as Figure 2c, Figure 2d shows the front view of the insertion part 31 ago and Figure 2d shows the entire lamp unit 2 in perspective.

From these figures it can be seen that the lighting unit 2 has a base body 29 of electrically non-conductive material, such as plastic, having a (see Figure 2d ) cylindrical, stepped from the diameter, construction, wherein the smaller diameter is formed on a projection 42 which projects from the front free end face of the main body part with the larger diameter.

At the rear end of this insertion part 31, the transverse to the longitudinal axis 10 stop plate 25 connects, which projects radially beyond the larger diameter of the insertion part 31.

From the stop plate 25 to the rear extends the feed part 32, in which the cable arrives from the lamp and is jammed, and which is blinded by a cup-shaped outer housing 23, which is not part of the one-piece main body 29, but pushed onto this from behind can be.

Also not part of the integral body 21 are the two locking levers 40 which extend along the body from the rear end of the feed 32 to the front end of the large diameter of the insertion part 31 and at its front end the outwardly facing locking lugs 9a, b at respectively Have one of the locking lever 40, with which they can lock behind the annular projection 39 of the building unit 1.

In the outer side of the locking lugs 9a, b are each arranged electrical contacts 12 which are spring-biased separately or together with the locking lugs 9a, b radially outwardly, either directly by means of in FIG. 2a visible spring between the two electrical contacts 12a, b or also by - contrary to the drawing - the contacts 12b fixed on the outer sides of the locking lugs 9a, b arranged, for. B. riveted, and the locking lever 40 are pressed by means of, for example, integrally formed on its back spring tongues 34 resiliently from the body 29.

In the axial region of the feed part 32, the locking lever 40 outwardly projecting actuators 21 in the form of extensions which are formed so long in the radial direction that they either flush with the outer surface of the pushed-over housing 23 in the locked state or even easily from this protrude and thereby serve as a push button 37 for squeezing the locking lever 40 and thus deactivating the locking lugs 9 a, b.

Around the smaller outer diameter of the extension 42, the second electrical phase is contacted as an annular electrical contact 12a.

The third electrical phase 12c protrudes radially from the circumference of the main body 29, for example, near the stop plate 25, be it at one point or at two opposite points of the circumference.

A splined profiling 38 is also formed on this larger circumference of the main body 29, approximately at the height of the rear end of the locking lugs 9b, ie the electrical contacts 12b, which does not necessarily have to be this way.

At the front end of the extension 42, an insertion bevel for easier insertion and centering of the plug part as a whole is also present in the socket part.

The main body 29 is formed in the region of the feed part 32 by two longitudinally parallel and transversely spaced, on either side of the longitudinal axis 10 extending mounting plates 33a, b, which are in the central region - viewed in the radial direction - interconnected by a central body 30.

The two mounting plates thus form in the radially outer region an outwardly open channel in which on each side of the locking lever 40 is located and laterally through the mounting plates 33a, b out.

Each of the locking levers is supported by means of bearing journals 44 projecting laterally at its rear end, which can be mounted in corresponding recesses of the mounting plates 33a, b.

Through the one mounting plate 33a through a running in the longitudinal direction 10 groove 45 is formed into the central body 29, which is also open to the rear end face of the base body 29 and thus of the central body 30, and in which the lamp supplied by the cable are inserted can and can be jammed there via a cable clamp 22 which is placed from the outside of a mounting plate 33 b.

The wires of the cable 14 are guided via a transverse opening in the central body to the on the opposite side, ie on the outside of the other central plate 33a, patch terminal block 6 'and electrically connected to its terminal points, in turn, with the electrical contacts 12a, b , c of the male part is electrically connected. The clamping block 6 'is preferably attached to the mounting plate 33b formed on the push-pin 41 in the radial direction and thereby secured by he can no longer be removed from there after sliding over the housing 23.

From the bearing block 6 ', the electrical contacts 12a, b, c are achieved by a central bore 35 and corresponding transverse bores 36 in the main body 29.

In the FIGS. 1 is the building unit 1 in FIG. 1 a in longitudinal section along the longitudinal axis 10, mounted in the building, but as in the Figures 2 without supplied cable, shown in Figure 5b from the back and in Figure 1c in a perspective view.

The FIGS. 1 a and b show that the building unit 1, which is the coupling part 3a of the coupling consists of a cup-shaped female part closed bottom 46 and an annular plate-shaped flange 7 at the open end of the cup-shaped socket, which protrudes radially so far beyond the socket that through Screw holes 8 a fastening z. B. in the ceiling of a building by screwing is possible.

This gland is covered in the mounted state by an inserted above, latching with the flange 7 aperture plate 28 whose outer diameter is slightly larger than the flange 7.

As FIG. 1 shows, a terminal block 6 'is arranged immediately outside the cup-shaped socket part, in the terminal points of the wires of the incoming, protruding from the building, cable are clamped and in turn are electrically connected to the electrical contacts 12a, b, c of the building unit 1.

These electrical contacts 12a, b, c are configured on the building part in each case as annular contacts 12a, b, c to be contacted by the lamp unit from the inner circumference, which are in corresponding inner diameters of the main body 29 ', which is made of a non-conductive material such as plastic consists, are trained:

From the insertion side, the first electrical contact 12c is arranged directly adjacent and even in the axial region of the flange 7. This is followed by the counter-spline 38 'connects.

In the axial direction 10 slightly deeper, the inner diameter of the base body 29 'widens slightly and thereby forms an annular shoulder 39, which serves the mechanical locking with the plug part and its locking lugs 9a, b.

Axially following this again a little deeper in the bush joins - with a larger diameter than the electrical contact 12c because of the shoulder 39 - the next electrical contact 12b in turn as an annular contact.

From the bottom 46 of the base body 29 ', which may be integrally formed therewith or as thus screwed or glued item, at least also made of non-conductive material such as plastic, coaxial with the longitudinal axis 10 is formed to the insertion direction open blind hole with a smaller inner diameter than that of the contact 12c, with such an inner diameter that matches the outer diameter of the extension 42 of the male part. In the inner circumferential surface of the blind hole, the third electrical contact is formed as an annular electrical contact 12a.

In this way, both the building unit 1 and the lamp unit 2 from a few simple items can be produced and assembled including the electrical contact.

FIG. 3 shows as an additional part a mounting bracket 24 for the lamp unit 1, if it must be mounted in an existing, cup-shaped lamp base, as indicated by the dashed lines.

The mounting bracket 24 consists of a central plate 47, in which a central opening 26 is formed, can be pushed through the straight insertion part 31 of the lamp unit 2 and then rests with its stop plate 25 on the central plate 47, with this also screwed, riveted or otherwise fixed can be.

From this central plate 47 protrude fastening tabs 27a, b from, radially and / or axially, depending on the design of the lamp base on which the attachment is to be made, preferably by screwing at the ends of the fastening tabs 27a, b relative to the lamp base.

For a variable attachment, the fastening tabs 27a, b may be formed as a perforated belt with a row of holes extending in the longitudinal direction of the tabs, the entire mounting bracket 24 of sufficiently stable material, preferably stable plastic or sheet, consists, the mounting tabs 27 relative to the central plate 47th preferably bendable.

LIST OF REFERENCE NUMBERS

1

building unit

2

light unit

3

combined clutch

4

Flush-mounted box

6 '

Bearing block7 Flange

8th

screw

9

Retention tab

10

axial direction

12a, b, c

electrical contacts

14

electric wire

20

blanket

21

actuator

22

cable clamp

23

casing

24

mounting bracket

25

stop plate

26

central opening

27a, b

mounting tab

28

restrictor plate

29

body

30

central body

31

insertion part

32

supply part

33a, b

mounting plates

33

Fastening device (for terminal block)

34

spring tongue

35

central bore

36

cross hole

37

pushbutton

38, 38 '

Multi-tooth profile

38

annular projection

39

locking lever

40

postponement pins

41

cylindrical extension

42

chamfer

43

pivot

44

gutter

45

ground

46

Central plate

Claims (15)

1. A connecting device for lamps, in particular ceiling lamps, comprising:

   - a building unit (1) with a below stucco outlet (4) or an above stucco outlet; and

   - a light unit (2) adapted thereto and connectable therewith, wherein

   - a combined mechanical-electrical quick coupling (3) with electric contacts (12) is provided between both units (1, 2);

   - the building unit comprises a first coupling half (3a) in addition to the outlet, which first coupling half can be mounted in the outlet;

   - a second coupling half (3b) is removably connected to the light and thus can be retrofitted or is permanently mounted;

   - the electric contacts are configured as plugs and sockets, wherein for purely axial locking, the plug component locks during insertion into the socket component of the coupling (3) through at least partial insertion in axial direction and a rotation safety between plug component and socket component, in particular a multi-tooth profile (38) with teeth extending in insertion direction, engages in at least partially inserted condition.
2. A connecting device according to claim 1, wherein an electrical clamping block (6') is attached outside of the pot-shaped socket of the socket unit and is electrically connected to the electric contacts (12a, b, c) in the socket component.
3. A connecting device according to one of the preceding claims, wherein a mounting device, in particular slip on pins (41) for a clamping block (6') are provided on the outside of a first mounting plate (e.g. 33a).
4. A connecting device according to one of the preceding claims, wherein a central body (30) is configured groove-shaped on a side of the second mounting plate (e.g. 33b) facing away from the side for the clamping block (6') and wherein the central body is configured open towards the outside of the second mounting plate for inserting the cable (14) and wherein screw holes for screwing on a cable clamp (22) are provided in the second mounting plate on both sides of the groove.
5. A connecting device according to one of the preceding claims, wherein

   - an insertion component (31) is configured cylindrical with a cylindrical extension (42) with a reduced diameter and with a large diameter on a free face of the cylinder, and/or in particular

   - only retaining lugs (9a, b) protrude in radially outward direction at the cylindrical circumference with the large diameter in the condition locked in the socket component.
6. A connecting device according to one of the preceding claims, wherein an electric contact for a phase is disposed in an annular manner about the cylindrical protrusion (42) with the small diameter in the plug component, in particular of the light unit (2).
7. A connecting device according to one of the preceding claims, wherein an electric contact for a second phase is disposed in the radially outward oriented surfaces of the retaining lugs (9a, b) at the plug component, in particular of the light unit, and is electronically connected to the clamping block (6') through longitudinal and transverse openings (35, 36) in a base body (29), like an electric contact on the small cylinder diameter.
8. A connecting device according to one of the preceding claims, wherein an additional electric contact, in particular for grounding, directly connected to the mounting plate, protrudes radially from the circumference of the base body (29) at one location and is resiliently preloaded relative to the base body (29).
9. A connecting device according to one of the preceding claims, wherein the light unit (2), in particular the plug unit, comprises a assembly clamp (24) for mounting the light unit in a provided lamp base, enveloped by a center plate (47), which comprises a central opening (26), into which the insertion component (31) of the plug component fits, and wherein radially and/or axially protruding mounting ears (27a, b) for mounting in the lamp base extend from the central plate (24).
10. A connecting device according to one of the preceding claims, wherein the below-/ above stucco outlet (4) comprises a central pin, protruding from the base, which central pin provides the positioning for the electrical portion of the coupling (3) or includes the electrical portion of the coupling (3).
11. A connecting device according to one of the preceding claims, wherein the plug component and/or the socket component of the coupling (3) is configured self centering.
12. A connecting device according to one of the preceding claims, wherein the plug component, in particular the light unit (2), comprises an insertion component (31) on the front side and a supply component (32) on the back side, which components are separated by a stop plate (25) oriented transversal relative to the longitudinal axis (10).
13. A connecting device according to claim 12, wherein the supply component (32) substantially comprises two mounting plates (33a, b) disposed parallel and offset to one another and extending in axial direction (10), which are only connected with one another other in the central portion through the central body (30), and resilient holding lugs (9a, b) are guided in the outward open gap of the mounting plates (33a, b).
14. A connecting device according to claim 12, wherein the retaining lugs (9a, b) are disposed at the front ends of locking levers (40a, b) preloaded relative to the adjacent base body in radially outward direction, which locking levers preferably extend over the entire length of the base body (29), that is the insertion component (31) and the supply component (32), and are supported at the rear end of the supply component (32), in particular in both mounting plates (33a, b) extending parallel to one another.
15. A connecting device according to claim 14, wherein spring tongues (34) integrally configured at the radially inner side of the locking levers (40a, b) protrude at a slant angle and are supported at the base body (29).

Images