EP0802587B1 - Mounting structure with lamp base for two pin fluorescent tube or similar - Google Patents

Abstract

A lamp holder has a pot-shaped mounting/installation housing (1) with attachments for a plug-in mounting box. Lamp holder contact elements (19) are fed via parts of the mounting housing and/or parts connected to it to the opening edge of the mounting housing. Connectors (25,26) for electrical cables are mounted in the vicinity of the opening edge. The connecting devices contain the contact devices (20) for the contact elements (19).

Description

The invention relates to a lamp holder for Two-pin fluorescent lamps or for equipment with mounting box containing two contact pins with one pot-like attachment housing. The attachment housing are in the Fastening devices near its opening edge assigned to anchor the to the ground after facing outside into a recess in a wall of a light box or the like, from the inside, insertable assembly box. The bottom of the junction box carries the one located inside the attachment housing Lamp holder, which one for opening the Extension housing open insertion slot for the contact pins having. The lamp holder also includes the contact pins interacting contact elements that protrude into the guide slot and with contact means to Contact at least one electrical to be connected Are provided. Such an assembly box is described, for example, in DE-U1-29 50 54 51. He thinks typically use with recessed ceiling lights that are equipped with fluorescent lamps, the length of which is greater is as the length of the light box. He allows it Lamp holder and the lamp base on one side from the Lay out the interior of the light box.

In the case of assembly boxes used in practice, in usually a commercial one, often with one in yours Guide slot provided rotatably mounted rotating body Bulb socket provided inside the attachment housing on the floor, for example by means of locking hooks or the like is clipped on. This means that the assembly Lamp holder outside of the attachment housing to the electrical Supply lines connected and then in the Extension housing inserted and fixed there on the floor got to. They often have to be close to the connection terminals bent, isolated supply lines through the Interior of the attachment housing are brought out what is disturbing and also carries the risk that the Cable insulation under the influence of the fluorescent lamp emitted heat in the vicinity of their base Is affected. Such an assembly box is also for automatic wiring of the lamp not very suitable.

To remedy it, it is from the aforementioned publication known that junction box with means for its temporary Anchoring at the cutout of the wall of the lamp body to be provided in a pre-assembly position in which it mostly still inside the light box located. In this pre-assembly position, the outside can forth, through conductor insertion openings provided on the side of the add-on box Conductor at the contact points of the lamp holder be contacted, whereupon the attachment housing in its final operating position is pressed. The Insulated connection cables are on the outside of the junction box, where in corresponding Recesses are included. Alternatively, the arrangement also be taken in such a way that the versions load-bearing bottom part of the connection housing for contacting of the connecting lines first in the area of Edging of the mounted connection housing arranged and then its final position in the Transferred depth of the add-on housing and there with its Side walls is locked. In this case, however the connecting cables back inside the connection housing.

Both versions are relatively complex; they also require additional assembly measures to the Lamp holder from the pre-assembly position to the final one To transfer operating position.

The object of the invention is therefore an assembly box to create that with simple, inexpensive manufacturing possibility easy assembly and Contacting distinguished and for automatic wiring systems suitable is.

The assembly box is used to solve this task characterized in that the contact elements the lamp holder through parts of the attachment housing and / or parts connected to it in a safe place to touch first to the opening edge of the attachment housing and then led out of the attachment housing are and that in the area of the opening boundary connection devices are arranged for electrical lines, in which the contact means contain the contact elements are.

The fact that the contact springs Contact elements formed directly by parts of the Add-on housing electrically insulated and safe to touch are stored, there is a risk of impairment by the heat that occurs inside the attachment housing excluded. Any through the interior of the Add-on housing with insulated electrical connection cables omitted. The contacting of the connecting lines takes place outside of the attachment housing in the on the Connection devices arranged on the front side of the assembly box, the easily accessible when assembled are. These connection devices can easily be so be designed to be used for automatic wiring the lamp are suitable. An example of one automatic wiring system on which the new assembly box is coordinated is in EP-A1-0 57 37 91 described.

Basically, the lamp holder itself can be one have any structure and on the bottom of the attachment housing, be fastened, for example, by clipping. Especially simple relationships arise when the lamp holder has a one-piece socket body, the is connected to the bottom of the attachment housing and in which the guide slot is formed, the contact elements, with their lying in the area of the socket body Split into slot-like recesses in the socket body are touch-proof. Another Simplification can be achieved in that the Socket body directly on the bottom of the attachment housing is integrally formed or molded from this or in other words, the bottom area of the attachment housing a lamp holder is designed directly in the form.

Expediently in the attachment housing from the Near the bottom to the edge of the opening running, slot-like or channel-like depressions trained in which the contact elements with their corresponding Parts are kept safe from touch. In order to there is no need for additional covers or insulation measures, to ensure the safety of touch.

The connection devices for the lines can are trained according to the respective need his. Particularly advantageous for automatic wiring but it is when the connection devices insulation displacement contacts with insulation displacement slots included. To do that Wiring through the socket without complicated cable routing to facilitate, it is appropriate that the IDC slots with their axes essentially parallel to the opening of the extension housing containing plane are aligned. It can in the Connection devices for each contact element Insulation displacement slot formed across the line receiving channel be open to one side along its length is. This line intake channel also acts as Guide means for the line laying tool, for what the aforementioned EP-A1-0 57 37 91 is referred to. Moreover are the dimensions of the cable intake channel Advantage chosen such that a next to the insulation displacement slot cut line end in the line receiving channel Safe to touch without additional insulation measures is kept.

Regardless of the training of the contact points, can the connecting devices molded housing parts have slit-like depressions, in those parts that lead out of the attachment housing Contact elements that are kept safe to touch.

The contact elements are usually in one piece, however, embodiments are also conceivable in which they are formed in several parts.

Finally, the attachment housing can be in the area of its Bottom openings and / or pot-like depressions have the air circulation through the attachment housing promote and for the exchange of heat with the environment enlarge available space.

Figur 1 einen Montagekasten gemäß der Erfindung in perspektivischer Darstellung,

Figur 2 den Montagekasten nach Figur 1 in einer Ansicht von vorne auf die Öffnung des Anbaugehäuses,

Figur 3 den Montagekasten nach Figur 2 in einer Draufsicht,

Figur 4 den Montagekasten nach Figur 2 in einer Ansicht von unten,

Figur 5 den Montagekasten nach Figur 2 in einer Seitenansicht,

Figur 6 den Montagekasten nach Figur 1 in einer Ansicht von hinten,

Figur 7 den Montagekasten nach Figur 2 geschnitten längs der Linie VII-VII der Figur 2 in der Draufsicht,

Figur 8 den Montagekasten nach Figur 2 geschnitten längs der Linie VIII-VIII der Figur 2 in einer Seitenansicht,

Figur 9 den Montagekasten nach Figur 2 geschnitten längs der Linie IX-IX' der Figur 2 in einer Seitenansicht ,

Figur 10 den Montagekasten nach Figur 2 geschnitten längs der Linie X-X und

Figur 11 den Montagekasten nach Figur 1 in einer abgewandelten Ausführungsform in einer Schnittdarstellung entsprechend Figur 7.

Exemplary embodiments of the subject matter of the invention are shown in the drawing. Show it:

1 shows a mounting box according to the invention in a perspective view,

FIG. 2 shows the assembly box according to FIG. 1 in a view from the front of the opening of the attachment housing,

FIG. 3 shows the assembly box according to FIG. 2 in a top view,

FIG. 4 shows the assembly box according to FIG. 2 in a view from below,

FIG. 5 shows the assembly box according to FIG. 2 in a side view,

FIG. 6 shows the assembly box according to FIG. 1 in a view from the rear,

FIG. 7 shows the assembly box according to FIG. 2 cut along the line VII-VII of FIG. 2 in a top view,

8 shows the assembly box according to FIG. 2 cut along the line VIII-VIII of FIG. 2 in a side view,

9 shows the assembly box according to FIG. 2 cut along the line IX-IX 'of FIG. 2 in a side view,

Figure 10 shows the assembly box of Figure 2 cut along the line XX and

11 shows the assembly box according to FIG. 1 in a modified embodiment in a sectional view corresponding to FIG. 7.

The assembly box shown in the drawing is made entirely of an electrically insulating plastic, preferably manufactured by injection molding. He points a cup-shaped attachment housing 1 with a substantially circular opening 2, a bottom part 3 and side walls 4 on. In the area of the opening 2 is on the add-on box 1 a flat flange 5 is formed on the back also integrally formed fastening devices Claws 6 carries. The mounting box is designed with its slightly conical on the top towards the bottom part 3 tapered mounting housing 1 in a recess 7 of a wall 8 of only one detail in FIG indicated light box, from the inside in the illustrated position to be inserted in the flange 5 rests against the wall 8 inside and the Assembly box through the two, in corresponding holes the wall 8 received claws 6 is locked (Fig.5).

In the attachment housing 1 is in the bottom area 3 Lamp holder 9 arranged for a two-pin fluorescent lamp. In the embodiment according to Figures 1 to 11, the lamp holder 9 is integral with the attachment housing 1 connected by the parts immediately from the Base area 3 are formed.

The lamp holder 9 has an opening 2 of the Add-on housing 1 coaxial circular cylindrical pin 10 on which, as can be seen from FIGS. 7, 8, is used for Backside open, pot-shaped hollow body with a Cavity 11 is formed and together with one to the coaxial annular part 12 surrounding it at a distance an annular guide slot 13 for the contact pins of the fluorescent lamp to be used. The ring-shaped part 12 is attached to a molded lateral conversion part 14, which in turn via an end conversion part 15 in one piece with the Side wall 4 of the attachment housing 1 is connected. The aforementioned Parts 10 to 14 form a uniform Socket body, as mentioned, directly from the Bottom area 3 of the attachment housing 1 is formed.

On the one facing the viewer in FIG Edging of opening 2 of the attachment housing facing front are in the end wall part 15 on both sides of the Pin 10 formed two groove-like depressions 16 from each of which is connected at right angles to one another Legs 17, 18 receives a contact spring 19. The dimensions (Width, depth and length) of the slit-like Recesses 16 are chosen such that the recorded therein Legs 17, 18 of the respective contact spring 19th are kept safe from touch.

Each of the contact springs 19 crosses with its leg 17, in the manner of a secant, the guide slot 13, as can be seen from Figure 2. The within the Guide slot 13 lying parts of the leg 17th forms a contact area in which a transverse, trough-shaped recess 20 is provided for spring-elastic latching of the associated contact pin the fluorescent lamp used.

In the lower area of the attachment housing 1 are in Areas of the opposite side walls 4 two longitudinal channels 21 formed, in particular can be seen from Figures 1, 6 and 7 and on the Open the rear of the add-on housing 1. The channels are 21 in the area lying in front of the end wall part 15 too open at the top. In them run to the legs 18 of the two contact springs 19 molded strip-like connecting legs 22 with which the contact elements are formed Contact springs 19 through the opening 2 of the attachment housing 1 are brought out in isolation. The inside dimensions the channels 21 are in the area of the interior of the Attachment housing 1 selected such that the connecting leg 22 of the contact springs 19 in them touch-proof are kept. At the same time, they guarantee the channels 21 to be limited internally, from the material of the attachment housing 1 molded wall parts 23 a flawless electrical insulation of the bare connecting legs 22. An impairment of the insulation ratio by the in the filament area of the inserted fluorescent lamp heat is thus excluded.

The connecting legs 22 of the contact springs 19 are with contact means lying outside the add-on housing 1 for contacting electrical conductors to be connected Mistake. For this purpose are on the in the figures 2, 3 the front of the flange facing the viewer 5 connection devices for electrical lines are provided. These connection devices point to the flange 5 molded block-like housing parts 24 (FIGS. 3, 8), which in turn on its front opposite the Boundary of the opening 2 of the attachment housing 1 containing Have axially offset connecting parts 25. In each the connecting parts 25 is one with its plane of symmetry parallel to the one containing the opening boundary Level aligned, continuous on both sides Line receiving channel 26 formed in the manner of a groove-like recess is open to the top and in remaining a substantially U-shaped cross section has (see Figure 8). Each of the line receiving channels 26 is by a section 27 of the at its end L-shaped connecting leg 22 of a contact spring 9 crossed (Fig. 3). In the leg section 27 is an insulation displacement slot 28 (FIG. 9) is formed which symmetrical in the assigned line receiving channel 26 lies and forms an insulation displacement contact.

On both sides of the insulation displacement slot 28 is the assigned line receiving channel 26 at 29 (FIGS. 3, 5) narrowed laterally. The distance of the. In these figures forming ribs is chosen so that one in the other Line receiving channel 26 inserted insulated electrical Cable with its insulation clamped to the constriction is. The dimensions (width, length and depth) of both sides sections of the insulation displacement slot each Line receiving channel 26 are dimensioned so that an adjacent the insulation displacement slot in the line receiving channel 26 truncated conductor end in the line receiving channel is kept safe from touch.

Even the parts emerging from the add-on housing 1 the connecting leg 22 of the contact springs 19 are in corresponding slot-like depressions 30 of the housing parts 24 safe to touch, without additional Covers or the like would be required. On a bend point, as in particular from FIG. 3 to see the slot-like recesses 30 each 31 expanded tubular to give access for test contacts to enable. Otherwise they close slot-like depressions 30 to those within the attachment housing lying, open top channel parts 21 on how this is particularly shown in FIG. 1.

When used, the assembly box becomes a unit in the manner shown in Figure 5 in the wall 8 of the Luminaire box mounted, whereupon the contacting of the Connection lines to the through the insulation displacement slots 28th formed contact points in the so-called insulation displacement technology happens. There is also an automatic one Luminaire wiring possible. The Line receiving channels 26 also serve at the same time for guiding the cable laying tool.

To additionally or alternatively also a conductor connection after the plug contact technology or the connection additional resources such as capacitors and the like are made possible to the viewer in FIG facing front of the housing parts 24 Conductor insertion openings 32 are provided, which lead to plug contacts 33 lead (Figure 3), which by U-shaped rags cut in the angled part of the connecting leg 22 of the respective contact spring 19 is formed are.

It can be seen in particular from FIGS. 6 to 10 that that the attachment housing 1 continuous in its bottom area Openings 34, 35 has the air circulation facilitate or enable by the add-on housing 1. In addition, from the back are pot-like Wells, as indicated by way of example at 11 and 36 are available, which are used for the heat transfer enlarge the area available in the area and thus also the heat dissipation from the inside of the housing facilitate.

The modified embodiment shown in Figure 11 of a new assembly box differs of that described above with reference to Figures 1 to 10 Embodiment only in that the from explained parts 10 to 15 existing socket body a separate one-piece molded from plastic disc-shaped lamp holder unit 37 that forms put the flat bottom 38 of the attachment housing 1 and with this is connected via locking hook 39. The contact springs 19 with their connecting legs led out of the attachment housing 1 22 are essentially the same as in the first-mentioned embodiment. Also the Connection device on the front of the flange 4 is unchanged.

In all the described embodiments the two contact springs 19 are each formed in one piece. Embodiments are also conceivable in which the Contact springs consist of several parts, which in the Assembly electrically connected to each other, e.g. be inserted into each other.

Claims (11)

1. Mounting box containing a lamp socket for two-pin fluorescent tubes or for operating means having two contact pins, with a cup-like attachment housing (1), to which fastening means (6) are assigned in the vicinity of the edge of its opening for anchoring the assembly box, which may be plugged from its inside into a recess in a wall of a light box or similar with the base (3) of its attachment housing pointing outwards, whereby the base (3) supports the lamp socket (9) disposed in the interior of the attachment housing, whereby the lamp socket has an insertion slot (13) open towards the opening of the attachment housing for the contact pins and contains contact elements (19) cooperating with the contact pins, which project into the guide slot and are provided with contact means (28) for contacting at least one electrical conductor to be connected, characterised in that the contact elements (19) of the lamp socket are kept contact-protected by parts of the attachment housing (1) and/or * parts connected thereto and directed out firstly to the edge of the opening of the attachment housing (1) and then out of the attachment housing, and that in the region of the edge of the opening connection means (25, 26) for electrical conductors are disposed in which the contact means (28) of the contact elements (19) are contained.
2. Mounting box according to Claim 1, characterised in that the lamp socket has a socket body (10 to 15; 37) in one piece, which is connected to the base of the attachment housing and in which the guide slot (13) is formed, and that the contact elements (19) with their parts (17, 18) lying in the region of the socket body are contained contact-protected in slot-like depressions (16) of the socket body.
3. Mounting box according to Claim 1, characterised in that slot- or duct-like depressions (21) running from the vicinity of the base (3) to essentially the edge of the opening are provided in the attachment housing (1), in which depressions the contact elements (19) with their corresponding parts (22) are kept contact-protected.
4. Mounting box according to Claim 2 or 3, characterised in that the socket body (37) is moulded in one piece on the base (3) of the attachment housing or is moulded out of this.
5. Mounting box according to one of the preceding claims, characterised in that the connection means contain IDC contacts with IDC contact slots (20).
6. Mounting box according to Claim 5, characterised in that the IDC contact slots (20) with their axis are aligned essentially parallel to a plane containing the edge of the opening.
7. Mounting box according to Claim 5 or 6, characterised in that a line receiving duct (26) crossing the IDC contact slot is provided in the connection means for each contact element, said duct being open towards one side over its length.
8. Mounting box according to one of Claims 5 to 7, characterised in that the connection means have moulded on housing parts (24), which contain slot-like depressions (30), in which parts (22) of the contact elements are kept contact-protected.
9. Mounting box according to Claim 8, characterised in that the housing parts (24) are offset relative to the plane containing the edge of the opening in the axial direction of the attachment housing (1) in a direction pointing away from the base (3) thereof.
10. Mounting box according to one of the preceding claims, characterised in that the contact elements are of multiple part construction.
11. Mounting box according to one of the preceding claims, characterised in that the attachment housing has perforations (34) and/or cup-like depressions (11, 36) in the region of its base (3).

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