HU202671B - Halide lamp, preferably for automobiles - Google Patents

Abstract

One (4) of the current leads entering the quartz glass bulb is welded into a deep-drawn eyelet (6) in the optical disc (1). The other current lead (5) passes through a hole. (8) in an insulating block (3) mfd. of e. g. acrylate resin, and is welded into a cable contact (2) at the end of the block (3) remote from the body of the lamp. - The block encloses another eye (7) in the optical disc to which it is secured.

Description

One aspect of the invention relates to a halogen lamp flattened by flattening, in particular to a car lamp.

In known halogen lamps with flanged glass, Vycor glass or quartz glass at one end, the bulb, in particular a tungsten filament, is located inside the envelope. This bulb receives the incandescent current through the current inputs.

The conductors are inserted into the bulb by flattening. The conductors are soldered to the flats in a vacuum-tight manner. The power inputs often consist of several parts. Due to vacuum sealing, soldering with molybdenum foil insert is common, because molybdenum foil can be easily soldered into quartz or Vycor glass. The molybdenum foil is soldered, on the one hand, to the internal current conductor, which directs current to the bulb body inside the bulb, and, on the other hand, to the external current conductor, which is connected to the external contact box outside the bulb. The inner and outer flags here mean whether we mean inside or outside the sail. Of course, a one-piece power supply is preferable, so if possible it is used.

For example, in the case of hardened glass coils, the conductors without inserts can be used well. One of the external power supplies passes through the so-called. optical disc, but electrically insulated from it, and connected to an outlet cable through which it receives the glow voltage, while the other is connected to an otpical disc, which is at ground potential, by means of a half sleeve (or metal case).

It is located on a flattening of the conductors with the aforementioned metal sleeve pressed against it. On the one hand, this is advantageous because during lamp production, after the optical adjustment, it can be used to secure the mounted bulb to the optical pan. Optical adjustment is required in all cases where the light emitted from the bulb body has to be projected in a specific direction, eg. also for car lights. On the other hand, it is disadvantageous because it is a complex metal body which is not easy to manufacture.

The most practical way of soldering the optical disk to the metal sleeve is by soldering, since the metal sleeve is relatively thin and the disk is relatively thick and therefore cannot be easily welded together. However, the soldering operation, if possible, is avoided when headlamping the lamps.

For example, the lamp detailed above is described in DE-OS 2 507 582. in a disclosure document.

As mentioned, it would be advantageous to omit the metal sleeve and thus the soldering operation, so we have endeavored to produce a halogen lamp without a sleeve.

Halogen headlamps without metal sleeve, in particular car lamps, are known in the art but do not have optical discs. (See GB

No. 536,649 patent description)

We have discovered, however, that halogen lamps with optical discs, especially car lamps, can also be produced with a metal sleeve without head. However, this requires that the external power supply is strong enough, that is, often thick enough to hold the luminaire during pumping and gas filling and soldering, and when it is in place, it must be thin enough at least partially solderable to the flattening.

It has further been discovered that the metal sleeve can be omitted only by modifying the known optical disc and providing the possibility of passage of the current conductor and at the same time that the two current conductors are not short-circuited by the metal disc.

Based on our discoveries, we have developed a halogen lamp, especially a car lamp, which has a light-transmitting seal with flap at one end, a charge of noble gas and halogen additive within the envelope, a bulb and a lead-in socket for mounting in the lamp. The latter is provided with two, preferably a narrower and a wider eye, along its circumference for recesses for mounting, and along its diameter for receiving the lamp's current leads and having a flange or gripping projections projecting from the plane of the disc. One of the lamp inlets, electrically attached to the narrower eye rim or its projection, is electrically guided, while the other current inlet is preferably tethered to the wider eye without being conductively contacted, and engages in the protruding, even expanding rim or projections of this eye is also guided through a hole in the block and is electrically fixed to the contact element fitted to the opposite end of the insulating block to the lamp.

In a preferred embodiment, the insulating block is rectangular or circular in cross-section.

Illustrative drawings of the present invention are provided with drawings showing

Figure 1 is a partially sectional view of a car lamp with a quartz bulb, a

Figure 2 is a longitudinal sectional view of a car glass bulb car lamp and a

3 and a are a plan view and an axial sectional view of an optical disc formed in accordance with the invention.

The invention will be further described with reference to the accompanying drawings. In the figures, the same details are denoted by the same number.

As the halogen lamp flattened at one end of Fig. 1 is a quartz lamp, the inlet leads consist of three parts. Connected to the flattened molybdenum film are, on the one hand, two tungsten fibers protruding from the bulb body, which can be considered as an internal current conductor, and, on the other, two external 4.5 conductors, which provide connection to an external power source. Molybdenum wire 1 mm in diameter. Leaving the metal sleeve clamped to flatten, the external power leads 4.5 take over the supporting role of the metal sleeve, which holds the lamp in a fixed position. It has been found that in the case of molybdenum current supply, approx. The wire, 1 mm in diameter, is strong enough to take on the supporting and securing role in addition to the traditional power supply role. Further, as can be seen in Figure 1, one of the current conductors 4 is secured to the optical eye 1 by a welded end. In this way, the optical disk 1 has the same potential as the current supply 4. The optical disc 1 is provided with a buckle 21 by means of the notches shown in FIG

HU 202671 Β resides in the lamp socket, the optical disc is at ground potential.

It is further shown in Fig. 1 that the other external current conductor 5 passes through a bore 8 in the insulating block 3 and is welded to the contact 2 at the end remote from the luminaire body. The insulating block 3 surrounds the perforated mesh of the optical disc 1. The mesh 7 is precisely edged or provided with projections so that the insulating block 3 is more securely connected to the optical disk 1. The material of the insulating block 3 is preferably a thermosetting resin, for example acrylate resin. The contact 2 in the insulating block is connected to the outlet cable, through which the lamp receives the necessary glow voltage.

Figure 2 shows a flattened halogen lamp at one end of a hard-glass envelope. Due to the material of the bulb, the conductors do not have a molybdenum insert. However, it is clear that here too, there are differences in the diameters of the internal and external inlets. The inner conductor is thinner and hooked to the bulb body. The external 4.5 inlets are made of wire with a diameter of about 1 mm. The optical disk 1 has the same structure and arrangement as shown in Fig. 1, therefore, no particular attention will be paid here to the details of the optical disk 1 and the external power supply 4.5.

Figure 3 a clearly shows the shape of the optical disc 1 also in top view. The optical disc 1 is made of steel for approx. 1 mm thick and approx. Body 2 cm in diameter, with details that allow it to be combined with the lamp and integrated into the concept.

The lamps shown in the drawings illustrate one embodiment of the present invention, but of course, one skilled in the art can also make other arrangements if one is familiar with the subject matter of the invention. We require all of these variants, that is, those which are protected by the claims.

Claims (2)

PATENT CLAIMS 1. A halogen lamp, in particular a car lamp, having a light-transmitting envelope closed by flattening at one end, a charge consisting of a noble gas and halogen additive within the envelope, a filament body and characterized in that two diameters and one wider eye (6) are provided along the diameter of the optical disk (1) which receive current conductors (4, 5) and have a flange or projections protruding from the plane of the optical disk (1). , 7) and that one of the current inlets (4) is electrically conductive attached to one or more of the narrower eyelets (6) and the other current inlet (5) to the other, preferably wider eyelet (5). 7) stitched through without is conductively contacted and is electrically conductive to a contact (2) attached to the opposite end of the lamp through the bore (8) of the insulating block (3) engaging the protruding flange or projections of this eye (7). A halogen lamp according to claim 1, characterized in that the insulating block (3) is rectangular or circular.