DE7528734U - HOLDING AND VENTILATION DEVICE FOR HIGH PRESSURE GAS DISCHARGE LAMPS - Google Patents

Description

ill · ·

Annex to the brewing sample registration H, no,

ROBERT BOSCH GMBH Stuttgart

Holding and ventilation device for high pressure gas discharge lamps

The innovation relates to a holding and ventilation device for high-pressure gas discharge lamps with a lamp neck surrounding ventilation tube and a lamp holder arranged inside this ventilation tube.

7528734 02.0176

In known holding and ventilation devices of the type described above Art, changing the lamp is relatively complex, especially when using lamps with greater power which do not have a screw base and are therefore not simply inserted into the ventilation pipe from the front and can be screwed into the corresponding screw socket.

A quick and easy lamp change with simple means To enable an assembly opening was provided in the jacket of the ventilation pipe. The assembly opening may Do not stay open during operation, because otherwise the neck of the high-pressure gas discharge lamp will result from poor cooling air flow would not be adequately cooled. So it must not be forgotten to open the assembly opening after the To close the lamp change again.

The innovation is based on the task of enabling quick and easy lamp replacement, but at the same time to prevent destruction or at least premature consumption of the lamp through overheating this object is achieved in that a closable assembly opening is provided in the jacket of the ventilation pipe is, and that the closure for this mounting opening cooperates with a fuse that the commissioning of the High pressure gas discharge lamp prevented when the mounting opening is open.

In the embodiment of the innovation, the closure for the assembly opening can be brought into operative connection with a safety switch such that this safety switch allows the high-pressure gas discharge lamp to be ignited in the closed position of the closure and prevents this ignition in the open position of the closure .

7528734 02.01.76

t 1 I

I t t

The following is the innovation in an embodiment are explained in more detail. Improvements were made to the presentation of details that were not essential to the innovation No clarity.

Show it:

Fig. 1 shows a detail from a lamp house with a longitudinal section through a ventilation pipe with innovation according to the invention Training and

FIG. 2 is a partial view of the ventilation pipe according to FIG. with not operated safety switch.

In a lamp house 1, a ventilation pipe 2 is arranged, which can receive a holder 5 in openings 5 and 4 in its jacket. By means of this holder 5, one end of a high-pressure gas discharge lamp 6 shown in phantom in FIG. 1 can be clamped. In the example, a clamping screw 7 is provided for this. In order to make the holder 5 or the clamping screw 7 accessible from the outside, the ventilation pipe 2 has an assembly opening 8. A foot 9 of the holder 5 penetrates one of the openings 2 or 4 in the jacket of the ventilation pipe 2 and is in this way in the ventilation pipe 2 Mounted · At the near outside protruding end of the holder 5, which is held in the ventilation pipe 2, a cable 10 is clamped by means of a socket 11. The power supply for the Hoohdruok gas discharge lamp 6 is connected via this cable 10. A plate 12 serves as a closure for the assembly opening 8 and for this purpose is fastened to the jacket of the ventilation pipe 2 by means of a socket 13. An extension 14 glued to the plate 12 engages over a push button switch 15 in such a way that its push button 16 when the plate is mounted

• 4 -

7528734 oz.01.76

- Jf-

12 is depressed. A cable 17 is connected to the push button switch 15, which leads to the ignition device (not shown) for the high pressure gas discharge lamp. One vein 18 of this cable 17 is connected to the push-button switch 15 by a clamp connection 19, 20. The same clamp connection serves to connect the second wire 21 of the cable 17 and is in the illustration according to Figure 1 by an insulating piece 22 covered. Arrows 23 indicate the direction of flow Cooling air through the ventilation pipe 2.

To change the lamp, the screw 13 is first loosened in order to be able to remove the plate 12 with the port set 14. With the screw 13 loosened, you only need the plate for this 12 to the left in the illustration. As soon as the plate 12 has been lifted off, the push-button switch 15 opens (FIG 2). This interrupts the ignition circuit and the high-pressure gas discharge lamp cannot be ignited. Through the assembly opening 8 released by the plate 12, the clamping screw 7 dissolved and the high-pressure gas discharge lamp 6 removed or replaced by another. After done When changing lamps, the plate 12 is put back on and fastened as a closure for the assembly opening 8. It closes the port set 14 also the push button switch 15 again and the The device is prepared to ignite the lamp.

In this way, it is effectively prevented that the Hoohdruokga's discharge lamp 6 can be put into operation without the assembly opening 8 being closed.

7528734 01/02/76

Claims (4)

Expectations 1. Holding and ventilation device for Hoohdruok gas discharge lamps one that encircles the neck of the lamp Ventilation pipe and a lamp holder arranged inside this ventilation pipe, marked daduroh, that in the jacket of the ventilation pipe (2) a versohllessbaren Mounting opening (8) is provided, and that the closure (12) for this assembly opening interacts with a seal (14, 15, 16) that enables the start-up the high-pressure gas discharge lamp (6) when the mounting opening (8) is open. 2. Holding and ventilation device according to claim 1, characterized in that the closure (12) with a safety switch (15) is brought into operative connection, such that this safety switch (15) in The closed position of the closure (12) allows the high-pressure gas discharge lamp (6) to be ignited, in the open position the closure (12) prevents this ignition. 2. Holding and ventilation device according to at least one of claims 1 and 2, characterized in that the safety switch (15) has a switching element, which protrudes into the cover area of the closure (12) closing the assembly opening (8). 4. holding and ventilation device according to at least one of claims 1 to 3, characterized in that the Closure (12) has an extension (14) which act on the switching element (ΐβ) of the safety switch (15) can. 7528734 01/02/76