EP1130696A1 - Halogen lamp with socket - Google Patents

Abstract

The system includes a halogen lamp (1) having a neck designed as a glass base (3) with external current leads lying on the side facing away from the lamp. The socket (2) has an opening (7) for the lamp, a mechanical retaining device (5) for the lamp at the glass base and metal contacts (6) for the lamps's leads. The external leads of the lamp are bent through an angle of about 90 degrees and the contacts of the socket make contact in their bent region. The bending of the one lead is located at a distance from the glass base. After the bending, this lead is passed back towards the glass base and lies especially on the narrow side of the neck.

Description

Technical field

The invention is based on a halogen incandescent lamp and a matching one Version according to the preamble of claim 1. It is thereby high-voltage / medium-voltage lamps with associated socket. The version can also be used as an adapter for conventional frames his. For example, the adapter can be used with a E27 / E14 screw base, bayonet base or similar be equipped.

State of the art

EP-A 652 610 describes a low-voltage (NV) incandescent lamp that is pinched on one side known that uses a glass base in which the power leads directly bent on the broad sides of the bruise by 180 ° are and are concerned with them. Elastic clamp contacts arranged in the socket enable a two-point bracket.

EP-A 668 639 also describes a version for a pinched on one side Low-voltage incandescent lamp with complicated contact springs and several wedge-shaped projections on the broad sides of the bruise, the power leads also on these wedge-shaped projections lie on.

Finally, from DE-A 28 10 402 there is a socket for a pinched on one side Low-voltage incandescent lamp for use on a printed circuit board known, the power leads for contacting on the board are laterally at right angles away from the pinch of the lamp.

Halogen incandescent lamps are increasingly used in many different ways Areas of life, for example in house and apartment lighting Vehicles, in the commercial sector, etc. Your advantages are in the low Size, the increased light output, the good color rendering and the longer lifespan compared to conventional light bulbs. Most of them are low-voltage halogen lamps, for example with 12 V or 24 V operating voltage. In the past few years, some medium-voltage and high-voltage halogen incandescent lamps came onto the market.

With low-voltage halogen incandescent lamps, pin lamps are pinched on one side used. The holding and contact elements are straight pin-shaped power supplies from the side of the pinch facing away from the lamp out. Accordingly, the assigned versions are essentially through two receiving openings with integrated spring-loaded Pin contacts marked for the pin power supply. Because of The low operating voltage is no safeguard against touching the live parts necessary. These lamps are very compact.

In contrast to this, in the known medium-voltage and high-voltage halogen bulbs predominantly additional outer bulbs with a conventional medium-voltage (MV) or high-voltage (HV) standard socket used. With screw bases they are for safety reasons even mandatory. As a connecting part between the lamp and the outer bulb on the one hand and the standard base on the other hand a ceramic part is often used, be cemented into the lamp and the outer bulb. The attachment usually takes place between the ceramic part and the standard base also by kitten, gluing or crimping. To eliminate the risk Piston bursts at the end of their life are between the power supply and base contacts switched one or two fuses. The halogen light bulb looks like a conventional light bulb for this voltage range (at least 80 V; typical values for MV are 100 up to 120 V, for HV 220 to 250 V) and essentially the same large. This is due to the safety requirements (protection against accidental contact in the corresponding voltage range; Burst protection) and by the due to the widespread luminaires requirements regarding the standard base as well as the demand for the interchangeability of conventional Lamp with incandescent halogen lamps. Because of these design features are HV / MV lamps both compared to the corresponding conventional ones as well as compared to LV halogen incandescent lamps with a transformer significantly more expensive. Their market share has therefore been comparatively small so far. In addition, compact HV / MV halogen incandescent lamps have so far been used not on the market.

Presentation of the invention

The invention is based on the technical problem of being as compact as possible Halogen lamp and socket system for HV and MV create. Another task is to find a halogen bulb and a suitable one Version or to create a system that improves on the one hand Environmental protection and on the other hand lead to cost savings.

According to the invention, this problem is solved by a system made of a halogen incandescent lamp and version according to claim 1 and a version according to claim 14 or a halogen incandescent lamp according to claim 21.

The invention is based on the idea of the most compact MV / HV lamps possible to manufacture by using glass bases with these lamps become. Under certain conditions, it is even possible without significant security risks related to the use of backups Avoiding lamp bulb bursting at the end of life. This can be done in particular by suitably shaped power supplies to reach. Examples are in DE-GM 91 02 566 (power supply is coiled and forms a blow-out channel in the bruise) and in the DE-GM 296 07 132 (power supply is a thin uncoiled wire with at most 200 µm, in particular 130 µm in diameter). To this Writings are expressly referred to.

According to the invention, one is designed for the medium-voltage / high-voltage range halogen lamp squeezed on one side, the pinch used as Glass base is formed with two narrow sides and two broad sides. All in all the system consists of a halogen incandescent lamp pinched on one side and associated version, the lamp being a high-voltage / medium-voltage halogen incandescent lamp with a lamp axis, its pinch as a glass base with essentially on the side facing away from the lamp Glass base lying power leads is formed, the socket an insertion opening for the lamp, a mechanical holding device for Holding the lamp to the glass base and metallic contacts to the electrical Contacting the power supplies of the lamp.

The external power supplies to the lamp are at least about 90 ° bent over. The electrical contacts of the socket contact in one Embodiment the power supplies in the bent area. As has been found to be thermally beneficial when the bend in the power supply is spaced from the glass base. Is mechanically particularly stable an arrangement in which the power supply after the bend to Glass base is returned and especially on the narrow side of the bruise is present. A high degree of compactness can be achieved if the electrical Contacts of the socket the current leads in the area of their free Contact returned ends.

The holding device acts with a holding means, usually a recess and / or a projection on the glass base in the sense of a Snap bracket together.

Power leads of the lamp protrude from the glass base essentially on the side of the glass base facing away from the bulb, i.e. essentially "down" when the bulb with the filament "up" is.

Furthermore, it is provided as a preferred embodiment that in contrast not the low-voltage halogen light bulbs and their sockets Power supplies and assigned receiving holes, but rather the Area of "bruise" lying above even for the holding contact between lamp and socket is used. The lie accordingly Power supply lines, when the lamp is mounted in the socket, "under" the bruise or under the mechanical holder. Therefore, they lie deeper in the version than with NV systems. The glass base and the bracket therefore contribute according to the invention to cover the live Share with. For this purpose, essential parts of the power supply lines are below of the bruise, while common for glass base lamps for LV operation directly on the end face of the bruise towards its broad sides are turned.

A major advantage relates to the contact points between the power supplies and the corresponding metallic mating contacts of the socket. Because the lamp is already held on the glass base, offers (compared to the pen lamps) the possibility to change the shape of the Power supply lines, which are arranged essentially under the glass base are, and to choose the version so that the contact points a certain have spatial distance from the glass base. This will make the thermal stress on the contact points and thus their oxidation clearly reduced. This advantage also applies in comparison to those described above conventional standard bases, because of their shape and massive Design a comparatively much stronger heat conduction to the contact points condition.

On the other hand, this creates the prerequisite for this, the metallic ones To place contacts in the socket so far apart that an erroneous contact of NV lamps, their Pin spacings are less than 6.35 mm, is not possible.

In order to achieve this, the power supply to the lamp must be at least bent about 90 ° to the narrow sides. This bend has initially the sense, the distance between the metallic contacts of the Easy to enlarge frame. This provides protection against the accidental use of a low-voltage halogen lamp with the resulting explosion risk realized. Due to the changed contact distance can be used with a low-voltage halogen incandescent lamp Distance between the power supply lines, no simultaneous contact to both metallic contacts of the socket are made, with the risk of accidents not applicable.

Nevertheless, the distance between the power supply lines in the lamp itself the bruise and immediately before it outside its end face on the standard distance of 6.35 mm introduced for low-voltage halogen incandescent lamps being held. This standard distance has also already changed for the Outer bulb used or for those equipped with additional standard bases Halogen light bulbs enforced in the high-voltage range. The invention Lamps can therefore continue to be cheap with the existing ones Machines can be produced and then simply bent over the distance between the contact areas of the power supply lines increases become. In contrast to low-voltage halogen incandescent lamps, bending no problem with HV halogen incandescent lamps because the molybdenum wires used typically have diameters smaller than 0.5 mm. By the The distance between the contact areas is at least bent to the outside 10% increased compared to NV lamps, according to a distance of Contacts in the socket of over 7 mm, particularly preferably over 8 mm, especially over 9 mm.

Finally, a certain spring action of the Power supply achieved, especially when the end of the power supply until it is squeezed. The contact between the power supply and counter contact of the socket is improved and can therefore simply by touching it. In this case a contact by touching it is advantageous to essentially counter-contact the socket to design flat, for example as a leaf spring, so that it the power supply does not take up while the contact area of the power supply is chosen as large as possible by being more or less flat (straight or slightly curved).

Depending on whether the contacts of the socket in the direction of insertion of the lamp or provided next to the power supply lines, it can be in this Connection make sense, the bend by more than 90 °, to extend about 180 °. In particular, the power supply in one rounded shape be bent so that its free end on the glass base rejects. It can also be beneficial if done in such a way back bent power supply for stabilization with its end in a recess, e.g. in a groove on the narrow side of the glass base, lies. To support the spring action mentioned, should go in the direction leave the respective spring a clear distance from the glass base become. For example, this direction is the lamp's longitudinal direction, if the metallic counter contacts - seen in the lamp insertion direction - lie in front of the power supply lines.

A spring action can alternatively or additionally also by resilient counter contacts the version can be achieved. The lifespan and reliability of contacts is increased if the mating contacts on the socket side provided with separate springs, in particular with coil springs are. To the power supply when contacting the socket side Counter contact - possibly in addition to the stabilization explained in the Recess of the glass base - better to lead, the counter contact a guide device, such as a shaft, can be placed in front of the socket, for example, by appropriate training of the socket housing. A high compactness and reliable contacting is achieved in that both the holder and the contacting by spring forces from resilient Means is achieved that act axially or transversely to the axis.

The resilient means is in particular a single coil spring or leaf spring, which interacts with the electrical contact so that it is simultaneously ensures both the holder and the contact.

In another variant, the resilient means for the holder is one Clamp spring, while the resilient means for contacting one Coil spring is. There can be a recess and on the glass base a projection is adjacent to each other and the clip spring is to do so designed to reach into the recess via the projection.

In a first embodiment, the system is designed so that the lamp inserted at an angle to their end position longitudinal direction and by one Axis rotating transversely to the longitudinal direction of the lamp in one with a projection Interacting snap-in bracket on a narrow side of the glass base has been snapped into place.

In a second embodiment, the lamp is in its end position longitudinal direction introduced and rotating about its longitudinal direction as an axis of rotation into one cooperating with a protrusion on the glass base Locked bracket, the snap bracket particularly in a lid of the socket is arranged.

In a third embodiment, the lamp is in its end position longitudinal direction inserted and thereby into one with a recess and / or with a projection on the glass base or the external power supply interacting snap-in holder snapped into place.

Basically, the system can be according to one of the various embodiments can also be designed so that the socket as an adapter with a Standard base (screw or bayonet base) for high-voltage / medium-voltage lamps is trained.

The basic concept of the version according to the invention for receiving a High-voltage / medium-voltage halogen lamp with glass base is based on the following Features: an insertion opening adapted to the glass base, a mechanical one Holding device, suitable for holding the lamp on the glass base, and metallic contacts, suitable for electrical contacting of power supplies of the lamp on the side of the lamp facing away from the lamp Glass base.

This basic concept enables a clear distinction Sockets for NV lamps that the distance between the metallic Counter contacts is at least 7 mm. With NV lamps it is at least 10% smaller.

The frame advantageously consists of at least two parts with riveted or crimped connections. This can on the one hand be different Material used for the parts (lamp side is a thermal heavy-duty material cheaper, such as ceramic) and the other the assembly of the springs and contacts in the socket is made easier.

The socket can also have an open envelope flask, in particular an opal screen, UV filter screen, color filter screen, a transparent Luminaire cover or an outer bulb.

The version with guide channels or shafts is advantageous for the Power supplies of the lamp equipped, which are adjacent to the contacts the version are arranged.

A suitable halogen lamp pinched on one side is an MV / HV halogen lamp, the pinch is formed as a glass base and whose power supply lines are bent in particular by at least about 90 ° are that the power supplies are essentially on the side facing away from the lamp Lie side in front of the glass base.

In particular, the lamp has a recess and / or a projection for locking a complementary snap-in holder of a socket fitted.

The power leads are advantageously bent away from the glass base at a distance and in particular led back to the glass base. High stability and contact security is achieved when the ends of the bent Power supply lines embedded in channels on the narrow sides of the glass base are.

The glass base offers various design options for the Assembly and optimize the seat in the holder of the socket. Nice a simple, in cross section z. B. rectangular glass base can easily stable and secure from a clamp or a form-fitting fit, which is part of the version.

The possibilities opened up with the invention result from the above considerable advantages with regard to the problem of the invention. So can do without the transformer compared to low-voltage systems become what these lights are not only smaller and much cheaper, but also in terms of their limited lifespan, of course, also more environmentally friendly makes. This results from the elimination of the waste burden due to the transformer and the material costs associated with it. It is also a possible source for defects and thus for a premature one End of life of the entire luminaire is eliminated. In addition, the hum that often occurs with cheap transformers in dimming mode avoided.

Compared to the conventional systems for medium-voltage and high-voltage operation the price of halogen lamps is considerably reduced the replacement of the conventional standard base by the glass base. Moreover can now be the additional mandatory screw base Outer pistons are eliminated. Similarly, material and assembly costs decrease as well as the generation of waste.

The low-voltage systems with pen lamps are for safety reasons unsuitable for the medium and high voltage range.

However, the invention makes it very small without security risks Lamp bulbs created for the medium and high voltage range. so that extraordinarily compact luminaire designs are possible. This is not only due to the reduced lamp size, but also due to the - in essentially due to the elimination of the standard base described - given Possibility of constructing very compact lamp holders.

With regard to the problem of the invention, there is a further one according to the invention Design in an adapter solution to conventional ones Standard sockets in the medium-voltage / high-voltage range, e.g. to the common ones E11, E14, E26, E27, B15d or B22d sockets. The version according to the invention is then connected or has a corresponding standard base a corresponding standard base. This allows the invention System in practically all common and in use Luminaires can be retrofitted with standard bases. So far with the conventional medium-voltage / high-voltage halogen light bulbs or lamps operated with halogen-free light bulbs can be converted, so that the user of the advantages of halogen lighting or the cost advantages the invention benefits while the security and Environmental protection is complied with.

A particular advantage of the system according to the invention is that Replacement lamp costs are so low that they can hardly differ from the Differentiate prices of conventional light bulbs. Thus, it becomes a significant one Increase in the market share of halogen lamps. The socket lamp system according to the invention can even be made so small be that the construction volume compared to conventional light bulbs or conventional standard socket halogen bulbs is reduced. Thereby retrofitting is practically unlimited in all luminaires possible.

Advantageous embodiments of the version are made without cement and the necessary connections are plugged, riveted, crimped, clamped or similarly executed. The freedom from cement comes to the environment benefits, and in addition, material separation during disposal facilitated. It will also be advantageous for HV / MV halogen lamps Usually soldered bottom and side contact soldering on an environmentally friendly connection technology, such as Laser welding, changed over. In particular, connecting rivets hollow in the socket and as screw or bolt holes serve through which the socket with the described adapter part or is connected to a lamp.

Finally, the socket can be equipped with an integrated shield be, for example with an opal, UV filter or color filter screen, or with a transparent lamp cover or with a screwed on Additional protection pistons, e.g. as protection against contact or from aesthetic Establish. In the latter case, the invention can in the case of the described Adapter solution for one of the conventional medium-voltage / high-voltage halogen incandescent lamps similar, but can be dismantled and largely lead reusable lamp.

Another impressive advantage of the adapter solution according to the invention with screw base is that by a suitable diameter increase the adapter directly above the screw base (generally as "Overhang" means) the mandatory contact protection in the Adapter can be integrated without an outer bulb like this State of the art is needed. So far this protection against contact has been conventional Halogen light bulbs with screw bases are very complex the attachment of an outer bulb realized, which at the same time as Protection against touching the actual lamp bulb acts.

The new adapter solution with a suitable diameter results in because of the now possible omission of the outer bulb enormous cost advantages with screw base adapters. Additional savings result for materials and in the manufacturing process. Furthermore, the recyclability of the products improved and the environmental impact reduced.

The inherent safety is achieved in that the protrusion of the adapter now always safely shields the side contact in the standard base, so that it is not possible to accidentally replace the lamp with the Fingers to get to live parts. In contrast, it used to be burst or loosened outer bulb possible, accidentally live Touching parts.

While a conventional lamp is sufficient for a touch guard large diameter of the base (according to the now possible Supernatant) would be very expensive and therefore not competitive adapter solution according to the invention the relatively expensive adapter with sufficient Overhang, i.e. large diameter, only when first purchased of the system can be bought. After that, the cheap purchase is always sufficient the replacement lamp with glass base.

According to the invention it is provided that the lamp by means of its glass base in the To keep up. It is preferred to use a snap-in bracket with the at least one recess and / or at least one projection on the glass base with at least one complementary element in the Version cooperates. In particular, there is a snap or bayonet connection thought. Such a snap-in holder is particularly effective, if there is a projection and a recess next to each other on the glass base lie and the snap-in bracket over the projection in the recess reaches to hold the lamp. This has the particular advantage that an (anyway preferred) integral formation of the projection or the recess on the glass base is facilitated by the out of the recess shifted material is used to build the projection. In the Manufacturing therefore does not have to remove or apply material, and the snap bracket can be one of the sum of the protrusion height and click into the corresponding distance.

It is for security reasons in all bracket variants and in particular in the snap-in brackets preferred that the socket has an insertion opening for the lamp, which is easy to insert largely the cross-sectional profile of the glass base and, if applicable adapted up to the insertion opening bracket is. A double-T cross-sectional profile of the pinch is preferred (or the glass base formed from it), on the one hand good guidance in the insertion opening and on the other hand good stability of the glass base enables. Since the glass base is held by the holder according to the invention stability is more important than with conventional halogen light bulbs.

There are various options for inserting the lamp and the snap-in bracket Possibilities, of which the following are preferred and in the Exemplary embodiments are illustrated in more detail.

For one thing, the lamp can do something relative to its final position inserted obliquely and already pressed against the contacts of the socket then, if necessary against the spring force of the socket contacts, by a rotary movement about a transverse to the lamp longitudinal direction extending axis to be guided into the snap-in bracket. To there is at least one recess or at least one projection at least one of the sides of the glass base in the direction of rotation, such as the Narrow sides of a glass base with a rectangular cross-sectional profile. Snap into place can simply consist in the fact that the spring force of the socket side Contact the lamp with one or more protrusions in one presses open recess on the side for insertion and thus locked in it.

Another alternative is a version that has a bayonet base corresponds, the direction of insertion and the longitudinal direction of the lamp when inserting and collapsing in the end position and the lamp in the frame rotating about its longitudinal direction in a similar manner as just now described is engaged.

Finally, it is particularly preferred to move completely towards a rotary movement dispense and the lamp simply in its longitudinal direction in the end position insert and engage directly with the insertion movement. It can especially one with the described projection-recess combination interacting spring means (generally a snap spring or Leaf spring) in the socket.

Regardless of the exact design of the contacts and the bracket it is preferred that the lamp be replaced without further disassembly measures can be done by simply removing the lamp from the socket removed or inserted into it. All that is required is the lamp bulb can be gripped and moved, similar to an NV halogen incandescent lamp with pin base.

As a precaution, it should be noted that the above and related individual features also explained with the exemplary embodiments be essential to the invention in other combinations or in each case can. In particular, the features of lamps described here are Versions or systems formed from them about the special area of application of medium-voltage / high-voltage halogen lamps also for other lamps applicable. On the one hand, this applies generally to incandescent lamps of all kinds, but also for other lamps such as discharge lamps, in particular small-watt metal halide lamps with a pinch on one side Pistons as described, for example, in U.S. Patent No. 4,717,852.

It is also pointed out that the subject of this application especially in combination with the subject of DE-GM 296 07 132 or DE-GM 91 02 566 from the same applicant has particular advantages. The teaching disclosed there to design the internal power supply that it acts as an inherent fuse enables halogen bulbs that can be operated without a separate electrical fuse, since Failure not to burst. In the present context, this has the advantage that the sockets, adapters and / or lights without electrical fuse can be operated and in particular no incorrect assembly regarding the power rating of the lamp and the fuse is possible.

characters

Figur 1

eine Seitenansicht eines Systems aus Lampe und Fassung nach einem ersten Ausführungsbeispiel;

Figur 2

eine Ansicht des Innenaufbaus der Fassung nach dem ersten Ausführungsbeispiel;

Figur 3

einen Längsschnitt entsprechend dem Schnitt III-III in Fig. 2;

Figur 4

einen Längsschnitt durch ein System aus Lampe und Fassung nach einem zweiten Ausführungsbeispiel (Fig. 4a) sowie eine Draufsicht auf die Fassung von oben (Fig. 4b) und von unten (Fig. 4d) sowie ein Querschnitt in Höhe des Deckels (Fig. 4c);

Figur 5

zwei um 90° zueinander gedrehte Längsschnitte (Fig. 5a und 5b) eines Systems aus Lampe und Fassung nach einem dritten Ausführungsbeispiel;

Figur 6

verschiedene Einzelheiten des Ausführungsbeispiels gemäß Fig. 5, die Lampe betreffend (Fig. 6a-c) und die Kontakte betreffend (Fig. 6d-f);

Figur 7

eine größtenteils längsgeschnittene Ansicht eines Systems aus Lampe und Fassung gemäß einer Adapterversion;

Figur 8

ein gegenüber Fig. 7 um 90° gedrehter Längsschnitt eines weiteren Ausführungsbeispiels, das gegenüber Fig. 7 geringfügig modifiziert ist;

Figur 9

ein gegenüber Fig. 5 leicht modifiziertes weiteres Ausführungsbeispiel.

The invention will be explained in more detail below with the aid of several exemplary embodiments, which are illustrated in the accompanying figures. It shows:

Figure 1

a side view of a lamp and socket system according to a first embodiment;

Figure 2

a view of the inner structure of the socket according to the first embodiment;

Figure 3

a longitudinal section corresponding to section III-III in Fig. 2;

Figure 4

a longitudinal section through a system of lamp and socket according to a second embodiment (Fig. 4a) and a top view of the socket from above (Fig. 4b) and from below (Fig. 4d) and a cross section at the level of the lid (Fig. 4c );

Figure 5

two longitudinal sections rotated by 90 ° to one another (FIGS. 5a and 5b) of a system comprising a lamp and a holder according to a third exemplary embodiment;

Figure 6

5 shows various details of the exemplary embodiment according to FIG. 5, relating to the lamp (FIG. 6a-c) and the contacts (FIG. 6d-f);

Figure 7

a mostly longitudinal sectional view of a lamp and socket system according to an adapter version;

Figure 8

a longitudinal section rotated by 90 ° compared to FIG. 7 of a further exemplary embodiment, which is slightly modified compared to FIG. 7;

Figure 9

a slightly modified from FIG. 5 another embodiment.

Description of the drawings

The first embodiment shows a tilt version of the invention Systems and corresponds to the configuration described in claim 10 a snap bracket. The system is particularly suitable for Table lamps, recessed furniture lights or similar In Figures 1 to 3 you can see one in a socket 2 inserted high-voltage halogen lamp 1, which is in an opening 7 of the essentially cuboid socket 2 with its glass base 3 is held. The version 2 is on a broad side with a riveted plate-shaped cover 4 provided in the view of FIG Clarification is omitted. In Fig. 3 in turn, the cover is on right edge of the section orthogonal to FIG. 2 is shown. The whole extreme compact system is only 62 mm high, the diameter of the lamp is 13 mm. The frame is 26 mm wide and 26 mm high and 11 mm deep. As FIG. 2 shows, the lamp has two power supply lines 9, which are made of protrude from the face 8 of the pinch and semicircular outwards are bent.

3 clearly shows that the lamp 1 in the opening 7 because the inclined upper edge 4a of the cover 4 are inserted inclined can. The current leads 9 shown in FIG. 2 press the lamp bow-shaped, "C" -like bent contacts 6 of the socket 2, the inside the "C" with coil springs 11, down. This is possible because the contacts 6 are guided in shafts 10 so that the lamp 1 can be pushed deeper under pressure. Then the lamp is in the longitudinal axis A tilted. A rotation about one in FIG. 2 takes place horizontally in the paper plane and in Fig. 3 perpendicular to the paper plane Axis of rotation, whereby wart-like projections 5a on the glass base 3 the lamp are guided under a recess of a snap-in holder 5b can. If the pressure is reduced and lamp 1 is finally released, press the springs 11, which are seated on crossbars 12 in the socket 2, the lamp into the recess of the snap-in holder 5b, and the Lamp is held securely on the one hand and there is a more secure one on the other Contact between the contacts 6 and the lower bend of the power supply 9 of the lamp.

In the lower area of the figures, two cables 13 are drawn in are attached to the contacts 6 with cable lugs or to the contacts riveted or welded.

In particular in Fig. 2 and Fig. 3 it can be seen that the live Parts of the socket 2, namely the contacts 6, through the opening 7 grouped collar 14, i.e. the upper area of the socket 2, partially are covered. This collar 14 has the latching bracket 5b and surrounds the glass base 3 closely. He is largely on the glass base 3 with adapted to small game. Exempt from this tight fit between Glass base 3 and insertion opening 7 is only for inclined insertion necessary oblique upper edge 4a of the cover 4, as in Fig. 3 on the right detect.

A particularly good covering of the live parts of the socket is by a second embodiment, namely a rotary version of the system according to the invention achieved. The glass base of the lamp is in the Principle modeled on a bayonet base, see that shown in Fig. 4a to 4d second embodiment, the design of a snap bracket according to claim 11. The second embodiment Compared to the first, however, the frame has a greater overall height, so that it cannot be made quite as flat as from the following becomes clear. A particular advantage of this embodiment is that the Socket can be easily adjusted to the width of the pinch of the lamp can, so that this width can be chosen freely.

The socket here is a hollow cylindrical body 22 made of ceramic or Steatite, in which a separate cylindrical inner body 20 rotates around the Longitudinal axis A is mounted. The inner body 20 consists of two one above the other arranged parts 20a and 20b, through which parallel to the axis A two contact pins 26 extend therethrough. These are through coil springs 31, which abut beads 27 of the pin contacts, resiliently mounted. The upper part 20a of the inner body has, starting from its upper Face 19, a slot-shaped receptacle 33, which the glass base of the to be recorded Lamp is adjusted.

As the longitudinal section (FIG. 4a) and the top view (FIG. 4b) show, is on the upper end face 19 of the socket, which is designed as an annular collar, is a cover 18 made of sheet metal with drawn down on the outside of the ring collar Edge 18a put on. The cover 18 is part of a snap-in holder 25 and is in three side recesses 17 of the version (each objected to by 120 °) attached by crimping. The cover 18 also has one elongated curvature 16 on its surface. It consists of two outer curvature parts 16a and 16b, which are centered by a sector-like or double-fan-shaped cutout 16c are separated from one another. Further are in addition to the curvature parts 16 a, b each by about 20 ° angle of rotation the curved parts offset mirror-symmetrical cut-out parts 16e and 16f attached to the large cutout 16c to the outside. The shape of the entire section corresponds essentially to the cross section of the bruise a lamp taking into account an axial 20 ° rotation.

A high-voltage halogen lamp 21 pinched on one side with a glass base 23 crushing is carried out vertically from above into the hollow cylindrical Socket 22 through cutout 16c in cover 18 into receptacle 33 inserted in the upper part 20a of the inner body. Two hemispherical or wart-like projections 30 on the narrow sides of the glass base 23 the lamp fit exactly through the cut-out parts 16e and 16f (see left half of Fig. 4a and Fig. 4b) and come in an arc Recesses 29 to lie in the collar of the socket 22 (see Fig. 4c). By turning the lamp 21 about the central axis A by 20 ° the two projections 30 on the under the corresponding bulge parts 16a and 16b of the lid 18 (Fig. 4b) rotated, as in the right half of the Figure 4a shown. The entire inner part 20 rotates, which is the pin contacts 26 with the springs 31 contains, with. It is appropriate to the maximum limit possible angle of rotation ζ by a lens 20c, the is arranged directly below the inner body 20. It has a cutout 20d, which is shaped like a suit fly and which has the angle of rotation ζ limited accordingly (see Fig. 4d).

When inserting the lamp 21 into the receptacle 33 also press semicircular outwardly bent power leads 24 of the lamp, the are led out from the end face 28 of the glass base 23, to which the separate coil springs 31 spring-loaded pin contacts 26 of the socket 22. The current leads 24 are in channel-like depressions 32 guided at the bottom of the receptacle 33. Pressing down the pin contacts 26 allows the warts 30 to get below the level of the cover 18 so that the rotation can be carried out until the warts 30 under the arches 16a, 16b. Press 21 when releasing lamp the springs 31 the lamp again so high that the warts 30 in the Snap bulges 16a, 16b into place. The lamp is detachably locked.

The following exemplary embodiments all correspond to the configuration a snap or plug-in version according to claim 9. This embodiment is particularly preferred because it takes advantage of the previous embodiments principally combined and also particularly easy to implement and provides an extremely compact system.

For the first time, an HV lamp socket system with a maximum 22 mm in diameter and a total length of no more than 51 mm (up to 60 W power) or 57 mm (up to 100 W power) realized what was previously seemed out of reach.

5 and 6 show the third embodiment, the claim 12 corresponds, in cross-sectional views rotated by 90 ° to one another (Fig. 5a and 5b) and details (Fig. 6). A high-voltage halogen light bulb 41 with a double-T-shaped crush-sealed glass base 43 can be inserted vertically into an insertion opening 47 of a holder 42 be introduced above.

The socket 42 is a round cylinder with a total height of 17 mm and a diameter of 22 mm. It consists of a plate-shaped Lower part 42a and an upper part 42b with the insertion opening 47. Die both parts are riveted together (35). The insertion opening 47 ends a bottom part 36 and is surrounded by a collar 37.

A U-shaped holding clip 45 is fastened in the insertion opening 47, whose two legs 45a are slightly bent inwards. That the Link 45b connecting leg 45a is in a connecting passage 38 locked on the lower end face of the bottom part 36.

The mechanical mounting of the lamp happens as follows: When inserting of the lamp, the legs 45 a snap into place in the insertion opening 47 Retaining clip (which forms a snap-in bracket) with its rounded ends 45c concavely bent over a wedge-shaped projection 40 in the broad side of the glass base into one arranged above and adjacent to it complementary groove-like recess 39 on the glass base 43.

The electrical contacting of the lamp happens as follows: On the lower one According to FIGS. 6a to 6c, two current leads occur on the end face of the glass base 44 at a distance of 12 mm. They consist of 0.5 mm thick Wires. These are led straight outwards about 4 mm, then however, bent back in a semicircle and extended so far that it is on the narrow sides 51 of the crush in axially parallel channels 52 and are thus stabilized.

When inserting the lamp, the power leads 44 slide below the Glass base 43 arranged sheet metal contacts 46 of the socket against Force separate coil springs 53 slightly radially outwards and set electrical contact. The contacts 46 have a Base body 46a radially outwardly bent upper lip 48. The upper lip facilitates the sliding of the contact 46 in a designated one Cavity 49, which is attached laterally in the collar 37. The across Springs 53 lying on the lamp axis are on the base surface 46a of the contact fixed by means of a bulged projection 50. The power transmission from The power supply 44 on the contact 46 is inclined towards the outside directed dent 53a in the bend area between base body 46a and Upper lip 48 relieved. The contact point between the power supply and In this version, socket contact is on the outside on the outside Leg of the power supply lines 44 bent semi-circularly by 180 °.

This type of contacting is optimized in every respect, because of the a sufficient distance of the arc formed from the power supply Contact point to the glass base is created. So that thermal Problems minimized. On the other hand, this construction is highly stable secured by fixing the power supply in the channel. At the same time, the bow favors a gradual increase Power transmission to the contact when the lamp is inserted. Finally becomes a very long common contact area between contacts and power supply, thereby reducing contact resistance and thermal corrosion problems are avoided.

This type of contacting enables differentiation the contact distance to NV lamps, so that an erroneous insertion is prevented from the outset by NV lamps. Accidents caused by faulty The use of low-voltage halogen incandescent lamps is in this embodiment therefore impossible because the snap-in bracket snaps into place 5 requires no counterforce on the part of the contacts 6 or the springs 11.

The power supplies 44 are guided in guide shafts 55, which are in the Bottom part 36 of the upper part of the socket 42 are located. The lower part contains two holes for lead wire 54 that are at the bottom of the contacts 46 are attached.

5 a and 5 b show that the insertion opening 47 in the broad direction the dimensions of the broad side of the pinch of the glass base 43 is adjusted. In the narrow direction it leaves enough space for that Rebound of the curved ends 45 c of the retaining clip 45. Overall results compared to the first two exemplary embodiments smaller insertion opening 47 with optimal protection against accidental contact with the rest also largely concealed contacts 46 due to their lateral arrangement.

In a simplified, cheaper version compared to FIG. 5/6 Fig. 9 is dispensed with the separate retaining clip 45. The mechanical Rather, it is carried out similarly to the first exemplary embodiments. It happens through the interaction of the transverse ones Coil springs move sheet metal contacts with suitably shaped outer Power supply. The same components as in Fig. 5 are in Fig. 9 with provided with the same reference numbers.

The outer part of the outer power supply 44 (ie the Parts that connect to the outside at the 180 ° bend) not straight to the The narrow side of the crush is bent back (and stored there in channel 52), but also bulged outwards. He describes in the plane of the power supply directly after the curvature externally directed arc 70. The sheet metal contact 71 has a corresponding adapted, inward bend 72 in a semicircular shape, so that the contact 71, seen from the side, resembles a question mark. The bend 72 is arranged higher than the sheet 70 in the end position, so that it can snap behind the bow 70. The snap-in range is preferably in Height of a lateral quarter-circle-like recess 75 at the end of the crushing. This will result in possible shear forces on those made of molybdenum Power supplies minimized.

When the lamp is inserted, the spring-loaded contact plate is briefly pushed outward when passing the curve 70. Upon reaching the End position, the bend 72 engages behind the bow 70. The transverse one Coil spring 73, which contacts 71 from the outside to the power supply 44 presses, is now arranged at the level of the bow 70. Your pressure prevents one accidental loosening of the snap connection. Thus, the current leads cause in connection with the contacts not only the electrical connection, but also the mechanical bracket.

In order to prevent a certain play of the lamp in the insertion opening 47, are wart-like projections 74 on the narrow sides of the pinch attached in vertical guide shafts 47a in the wall of the insertion opening 47 out and so a lateral tilting of the lamp prevent.

7 and 8, which show two side views rotated by 90 °, correspond largely of Fig. 5. However, they show two adapter versions, at an adapter instead of a fixed mounting of the socket in a lamp 56 replaced the frame part. The adapter 56 has an upper part 58 which in principle corresponds to that described in Fig. 5/6. The lower part 59, the is equipped with a screw base 57, 60 am via two hollow rivets Attached top. Crimping is one of a first contact 61a leading to the side contact 62 of the screw base in the Bottom part 59 clamped while a second cable is off the ground contact 63 of the E27 base leads to a second contact 61b. The remaining Components correspond to the previous embodiment. In the embodiment 7 has the lower part an E14 screw base. The whole The overall height of the system is 81 mm. In the embodiment of FIG. 8 the lower part has an E27 screw base and it is also a Outer bulb 65 slipped over the inner bulb. The outer bulb is by means of Spring plates 66 attached to the lower part 59. The total height is about 90 mm.

It is particularly worth mentioning that the side overhang 64 (2.5 mm wide) Protection against contact is guaranteed on the adapter in both exemplary embodiments. It thus replaces the outer piston that was previously mandatory (Fig. 7) or makes the outer bulb 65 a pure design feature (Fig. 8).

The lower part of the adapter can also be used instead of a screw base Bayonet base. Furthermore, instead of an outer bulb for example, a reflector or decorative silk matt (opal translucent) envelope bulb attached to the adapter. There is one funnel-shaped, conical or bell-shaped opal shade as an open one Envelope piston 14 attached, similar to that shown in DE-GM 92 01 057 Adapter. In this known adapter system, however, the lamp is included a standard bayonet base (type B15d) and the adapter with the corresponding one Counterpart equipped. The overall length is therefore clear larger than in the solution according to the invention.

It is also conceivable that instead of the opal screen, an arbitrarily shaped one separate glass bulb is provided, which is detachably attached to the holder 2, e.g. is screwed to get to the lamp. Of course are also any other lamp or luminaire accessories conceivable, e.g. Filters, mirrors, lenses or the like.

The materials used in the exemplary embodiments are: molybdenum power supply for the lamp; Ceramic, preferably machinable ceramic or also heat-resistant plastic, for the parts of the socket or of the adapter, nickel-plated iron or nickel-plated copper alloy for the Rivet, spring steel for the spring of the snap-in bracket in FIGS. 5 to 9, Copper alloys or nickel-plated iron for contacts 6, silicon insulated Cable on the contacts 6.

The assembly of the socket 2 in the exemplary embodiments shown in FIGS. 5 to 8 happens as follows: The retaining spring 5 is from below in the Upper part of socket 2 inserted; the cables are riveted or resistance welded attached to the contacts 6. The cables with the contacts and the springs 11 are inserted and the lower part and the Rivet upper part of the version 2 riveted 12; if necessary, the standard socket sleeve 8 placed on the lower part and crimped.

The contact distance achieved in the exemplary embodiments shown in FIGS. 5 ff the contacts 6 is significantly larger than the standard distance of NV lamps (6.3 mm). It is at least 7 mm, preferably 9.6 mm. There are of course, also appropriate voltage-adjusted in the rest Provide clearances and creepage distances.

Claims (1)

Halogen bulb (1; 21; 41) pinched on one side with a bulb that has a pinch with two broad sides and narrow sides and in which a luminous element is arranged, which is connected to external power supply lines (9; 24; 44) connected to the End face of the pinch facing away from the piston, the outer power supply lines being bent by at least about 90 °, characterized in that the lamp (1; 21; 41) is a high-voltage / medium-voltage halogen lamp with a lamp axis (A), the pinch being a glass base (3; 23; 43) is formed by being provided with a holding means for the attachment of a socket, the outer current leads (9; 24; 44) of the lamp being bent towards the narrow sides of the pinch, an inherent Securing effect is achieved by the internal power supply lines (15) of the lamp being suitably designed.

Images