EP2458614B1 - Electric lamp with an outer bulb and a fitted lamp - Google Patents

Description

Technical area

The invention relates to a lamp according to the preamble of claim 1. The invention relates in particular to a single-ended electric lamp having a salient Erten in a base outer bulb and at least one arranged within the outer bulb integral lamp. Such halogen incandescent lamps are intended in particular for operation on high voltage (HV) with typically 100 to 250 volts.

State of the art

The WO-A 2009156251 discloses a mounting for an integral lamp in an outer bulb, wherein the holder has a metallic mounting clip, which sits on the end of the Tellerfußes.

Usually, the outgoing from the built-in lamp outer power supply lines are firmly connected to the towering from the base plate feeder lines for locking. In this case, a complex machine technology is required.

Presentation of the invention

The object of the present invention is, in a lamp according to the preamble of claim 1, the installation of a built-in lamp in an outer bulb by means of mounting clip safely and reliably, but nevertheless to accomplish in a simple manner.

This object is achieved by the characterizing features of claim 1.

Particularly advantageous embodiments can be found in the dependent claims.

In contrast to a highly automated process, a novel assembly concept is now proposed, which does not require any elaborate adjustment.

The invention ensures the simple and reliable production of a lamp with built-in lamp. The invention provides, in particular, a single-ended electric lamp with an outer bulb fastened to a base and an integral lamp which is arranged inside the outer bulb and which is robust and easy to produce. Preferably, the lamp or integral lamp is a high-voltage halogen incandescent lamp, wherein at least two pins act as power supply wires. The lamp can also be a high-pressure discharge lamp. The built-in lamp has a piston with pinch, which is supported by means of a retaining clip on the base. The retaining clip has a plate-like body and three spring feet attached thereto, which allow a centering holder and a contact in the base sleeve.

The lamp or integral lamp consists essentially of a hermetically sealed lamp vessel or bulb with pinch, of at least one light source and a power supply system for the lamp, which usually has two external power supply lines, which protrude axially parallel from the pinch. The bulb is usually a filament, but it can also be a discharge arc between two electrodes. In the following, the light source will always be described as a luminous element for the sake of simplicity. It is often connected to the external power supply lines via internal power supply lines and possibly foils.

The power supply system connects the lamp arranged in the interior of the lamp vessel with a lamp arranged outside the base, which is to be connected to a power source. The power supply system consists, for example, of inner power supply wires, of fuser films and of outer power supply wires, wherein the aligned ends of the inner and outer power supply wires and the power supply wires interconnecting fusing films are fused in the lamp crimp. Relevant to the invention is only the pinch and the outwardly projecting wires of the external power supply lines. The piston is usually filled with an inert gas and a halogen additive. Instead of a light bulb, a high-pressure discharge lamp can be used in particular as a built-in lamp, similar to DE-A 32 32 207 described.

The joke of the invention is that the power supply lines are welded to a holding clip, which takes over the further contact with the base for one of the power supply lines.

The base sleeve is called with a base stone, often called glass block, equipped, as known. He is especially pulled up inside.

Previous retaining clips were often screwed into the base sleeve, wherein in the area of the thread no base stone was present.

The novel concept is preferably based on a three-point mounting of the retaining clip in the base. For this purpose, the retaining clip has a plate-like apron made of sheet metal. Preferably, it is bent like a wave. It is called in the following base plate or apron and in particular structured in partial plates.

On the apron in the direction of the base a three-point holder is mounted to rest on the skirt inner edge. These are three spring feet, which bear against the socket inner edge after joining.

The shape and length of the spring feet are sized to compensate for the tolerance of the inside diameter of the skirt edge. As a result, the clip sits stably in the base sleeve and ensures a secure power contact to the base sleeve.

The pinch of the integral lamp is preferably held by means of two mutually opposite spring tongues in the region of a lateral edge of the pinch. Optionally, corresponding spring tongues can also support the other lateral edge of the pinch. However, this can advantageously be dispensed with in order to avoid luminous flux losses due to shading due to the additional spring tongues.

A first of the two outer power leads is welded to the base plate. This has to facilitate for about the middle of a bead on which the weld can take place. This first external power supply ends at the base plate.

The second external power supply is without any contact with the clip, it can be connected to an extension wire or be made long, so that they can make in each case a direct connection to the socket center contact.

Due to the unilaterally welded power supply on one side and the spring parts on the other side of the base plate already results in a sufficient good support of the built-in lamp by the retaining clip.

In a preferred embodiment, the base plate is curved in a wavelike manner from a first lateral edge to a second lateral edge, so that it has two to three partial plates. A first sub-plate is preferably aligned parallel to the broad side of the pinch, said first sub-plate is approximately in the extension of the plane of a first broad side of the pinch towards the base. Approximately in the middle follows a slope as a second sub-plate, which is also oriented axially parallel. It extends, seen transversely to the longitudinal axis, to about halfway between the two broad sides of the pinch. This is followed by a third sub-plate, this is also axially parallel, but it is approximately in the middle between the two broad sides of the pinch, so that the upper edge of the third sub-plate, as well as the upper edge of the second sub-plate, the bottom surface of the pinch as a stop can serve.

On the first part of the plate, an angle is attached, which is angled relative to the first part of the plate by 90 ° is. This angle part ends on the base side in a kind of runner with two ends. This runner ends on both sides in two of the three spring feet. As a result, this results in these two spring feet lying in a plane transverse to the plane of the third spring base.

This third spring base is constructed as an extension of the third part of the plate. Its contacting end towards the base sleeve points outwards, away from the plane of the first two spring feet.

The two spring tongues for fixing the pinch are aligned approximately parallel to the axis, wherein one of the spring tongues attaches axially parallel to the lamp side on the upper edge of the first part of the skirt. The second spring tongue is attached to the angle part. For this purpose, the angle part on its side remote from the first part plate of the skirt end has again angled against the angle part platelets. This is bent at 90 ° to the angle so that it runs parallel to the first part of the panel and opposite.

The two spring tongues are substantially parallel to each other and are clamped to the two broad sides of the pinch.

For secure fixation of the pinch without play the free ends of the spring tongues are preferably corrugated.

With such a retaining clip, the rejects could be reduced to about one-third of the usual value when mounting the built-in lamp in the base.

In a particularly preferred embodiment, the efficiency of the lamp is thereby increased, that the luminous flux losses minimized towards the base. For this, the frame structure is changed and adapted the manufacturing process of the socket.

So far, the base was done by serving as a holder for the built-in lamp two clip parts that include the pinch of the integral lamp. The clips are mounted on the feeders that protrude from the base plate. Then they are fixed by laser welding. then a usual socket is attached.

A novelty is now that a reflector disc is attached to the clip, this reflector disc is joined, on the built-in lamp two power supply lines are welded by laser. The built-in lamp is fitted to the clip and a power supply to the clip by laser or Widerstreschweißen attached. In addition, the clip is optionally inserted into a ceramic part, which can engage in locking devices of the clip. This ceramic part is necessary so that the base sleeve can remain potential-free and safe to touch. Then putty is applied in the base, then the assembly of built-in clip-ceramic-ceramic part is added to the base, the outer bulb is placed and the putty is baked out.

Advantages are that minimized shadowing of the clip minimizes the luminous flux loss of the built-in lamp. In addition, the luminous flux losses are reduced by the use of the reflector part.

The reflector part is a disc with openings in the interior of the disc. Preferably, there are four arranged along an imaginary line openings, the are symmetrical towards the center of the disc. The two outer openings are small holes through which the outer power supply lines of the built-in lamp are threaded through in the direction of the base. Further inside are two approximately triangular larger openings. Through one of these two openings, the two spring tongues of the clip, which hold the pinch, passed. As a result, the reflector part is seated on the clip, in particular with play, and reflects back the radiation of the built-in lamp falling in the direction of the base.

Brief description of the drawings

Figur 1

eine Prinzipdarstellung einer erfindungsgemäßen Lampe in Seitenansicht;

Figur 2

eine Einbaulampe im Detail mit Halteclip in Vorderansicht mit eingehängten Stromzuführungen in verschiedenen Ansichten gemäß Figur 2a, 2b, 2c;

Figur 3

eine perspektivische Darstellung der Einbaulampe vor Montage am Halteclip;

Figur 4

eine Ansicht des Quetschungsbereichs von unten gemäß dem ersten Ausführungsbeispiel;

Figur 5

eine Ansicht des Quetschungsbereichs von unten gemäß einem zweiten Ausführungsbeispiel;

Figur 6

eine Ansicht des Quetschungsbereichs von unten gemäß einem dritten Ausführungsbeispiel;

Figur 7

das Prinzip der Dreipunkthalterung in zwei Ausführungsbeispielen gemäß Figur 7a und 7b.

In the following, the invention will be explained in more detail with reference to several embodiments. The figures show:

FIG. 1

a schematic diagram of a lamp according to the invention in side view;

FIG. 2

a built-in lamp in detail with retaining clip in front view with hinged power supply in different views according to FIG. 2a . 2 B . 2c ;

FIG. 3

a perspective view of the recessed lamp before mounting on the retaining clip;

FIG. 4

a view of the pinch region from below according to the first embodiment;

FIG. 5

a view of the pinch-off area from below according to a second embodiment;

FIG. 6

a view of the pinch region from below according to a third embodiment;

FIG. 7

the principle of three-point mounting in two embodiments according to FIGS. 7a and 7b ,

Preferred embodiment of the invention

FIG. 1 represents a complete halogen incandescent lamp 1. In a base 2 of the commercial type E14 or E27, with ceramic base brick 3 or bulb holder and attached screw 4 and base sleeve 42, an outer bulb 13 is held in the base sleeve 42 by means of putty. Within the outer bulb 13, a built-in lamp 5 is arranged. The integral lamp is designed as a so-called high-voltage halogen incandescent lamp and known as such from the prior art. The lamp 1 has a longitudinal axis A.

The built-in lamp 5, see also FIG. 2 and 3 , is equipped with a single pinch 6, which has two broad sides 6a and 6b and two narrow sides 7a and 7b, and a bottom part 7c. From the pinch 6 pin-like outer power supply 23 protrude.

The built-in lamp 5 is, for example, a one-sided pinched halogen incandescent lamp with a lamp vessel 10, in which a luminous element 9 is fixed. The luminous element 9 is electrically conductively connected to the base 2 via a power supply system. The power supply system is composed of inner power supply wires 11, fusing films 12, and outer power supply wires 23 connected to the luminous body 9. The ends of the inner power supply wires 11 facing away from the luminous body 9, the fusing films 12, and the ends of the outer power supply wires 23 facing the fusing films are in the pinch seal 6 , which closes the lamp vessel 10, melted down.

The lamp vessel 10 is filled with an inert gas and halogen additive. At its opposite end of the pinch 6, the lamp vessel 10 is melted down (14). The lamp vessel 10 is thus hermetically sealed to the outside.

The integral lamp 5 is held by a plate-like skirt as the main body of a retaining clip 20 in the base, see also FIG. 2 and 3 and 4 , The retaining clip 20 has a plate-like base body 21, which is divided into three sub-panels. A first sub-plate 25 is aligned parallel to the axis A and approximately in extension of the second broad side 6 b of the pinch 6 and is disposed directly below the pinch 6. You can also rest as a guide a bit far on the broadside. The first sub-plate 25 has an upper edge, which is shown to pinch, a lower edge, which faces the pedestal, an outer edge facing away from the axis A, and an inner edge, which faces towards the axis A.

A second sub-plate 26 is axially parallel, starting from the inner edge of the first sub-plate 25, obliquely to the first sub-plate and leads towards the center of the bottom part of the pinch 6. At the end of the second sub-plate 26 is obliquely thereto, and thereby again approximately parallel to aligned first sub-plate, a third sub-plate 27 is aligned substantially parallel to the broad sides of the pinch. This third sub-plate 27 sits below the bottom part 7c and forms a stop for the bottom part 7c of the pinch, see the view of FIG. 4 ,

Alternatively, the plate-like skirt 30 can sit as a plate continuously oblique to the broad side 6b of the pinch, so forms a one-piece construction, see FIG. 5 ,

Alternatively, the plate-like skirt 40 may be constructed of two parts, with a first part plate 41 as in FIG. 2 and a continuous oblique part plate 42 as a second part, see FIG. 6 ,

The further construction of the retaining clip 20, in particular in all three embodiments, is again by way of example with reference to FIG FIG. 2 and 3 explained. The third sub-plate 27 has a bead 28 laterally, so that it can be assigned to the first external power supply, in the height approximately in the middle in the base plate to which the associated first external power supply 23 is welded. The third sub-plate 27 also has a foot-like extension 33, which opens in a bend, more or less the toes 34, and which acts as one of three spring feet.

The first sub-plate 25 has attached at its outer lateral edge a 90 ° angled first elbow 29, which extends approximately parallel to the second narrow side 7b of the pinch. Also, this first elbow 29 is extended like a foot and forms at its base end a kind of skid 35. This runner is transverse to the first spring leg 33. The free ends of the runner act as second and third spring feet 35a and 35b.

At the free edge of the first angle piece sits a relatively bent over plate 34 as a second angle piece, which is aligned parallel to the first part plate 25.

At the upper end of the lamp-side of the first partial plate 25, a first spring tongue made of spring plate 38 is attached approximately paraxially in the direction of the pinch. In the same way, a second spring tongue 39 made of spring plate is attached to the plate 34 so that the pinch 6 can be fixed between these two spring tongues. To avoid any play, both spring tongues at their free ends on a kind of shaft 49, which presses against the pinch, more precisely their broadsides 6a, 6b.

The third sub-plate 27 has a threading aid in the form of a half-funnel 46 at its upper edge.

Approximately in the middle between the first partial plate 25 and the first angle piece 29, a wire is supplied during assembly, preferably by welding, which serves as an extension wire 45 for the second external power supply 23.

FIG. 7 shows the basic principle of the three-point mounting of the retaining clip in the base sleeve 42. The first spring leg 33 is transverse to the runner 35 with the two other spring feet 35a and 35b arranged. In FIG. 7b a further embodiment is shown, in which the second and third spring feet 35a and 35b are angled as the ends of the blade against the central part of the blade.

A mounting procedure using the retaining clip is carried out in the following steps: First, the extension wire is connected to the second external power supply of the built-in lamp.

Thereafter, the recessed lamp is inserted into the retaining clip by the pinch is inserted into the two spring tongues, whereby it is fixed, and wherein the integral lamp is pushed so far between the spring tongues until their bottom part of the pinch on the body or its intended, for example third sub-plate, rests.

Thereafter, the first external power supply of the integral lamp is connected to the base plate. The contact is made by welding the first external power supply to the base plate, preferably on a bead of the first sub-plate, for example by means of laser welding or resistance welding.

Thereafter, putty is introduced into the base sleeve 42 and the assembly integrated lamp / retaining clip in the base sleeve, the three spring feet ensure the mechanical and electrical contact to the base sleeve, so the side contact of the base. Thereafter, the outer bulb 13 is fitted in the base sleeve and the putty baked out. The escaping gases are sucked out by negative pressure via the ground contact, which is still open as an eye. Thereafter, the extension wire is equal to the Ground contact cut to length and soldered to the ground contact.

Since the base plate is electrically connected to the base sleeve via the three spring feet, thus the side contact is realized. The center contact is realized by soldering the extension wire in the ground contact of the socket, the eye.

FIG. 8 shows in FIG. 8a a halogen incandescent lamp 1 with built-in lamp 50 and retaining clip 51, wherein on the clip a reflector part 52 is mounted transversely to the longitudinal axis. The reflector part 52 is a disc, the radiation of the built-in lamp from the base, here a bayonet base 54, reflected away.

FIG. 8b shows a longitudinal section through the lamp according to FIG. 8a ,

FIG. 8c shows an exploded view of the lamp FIG. 8a , In this case, the spherical outer bulb 55 is shown above, including the built-in lamp 50, which has a pinch 56, protrude from the two outer power supply 57. Both power supply lines are equipped with extension wires 58. These are passed through two hole-like, lying outside in the disc 52 first openings 59. At least one extension wire is surrounded with insulation for this purpose. The reflector part also has two inner second openings 53, which are significantly larger than the outer first openings.

Below the reflector part 52, a holding clip 51 is arranged, with a base plate 60 and two perpendicular thereto Angled side walls 61, which are all arranged axially parallel. On the side walls also extend two spring feet 62 down, towards the base. Both are essentially approximately plate-like and each have in their center a barb 63, which is cut out of the flesh of the spring foot and is slightly angled inwardly towards the inside.

These spring feet serve to ensure that the clip 51 can be anchored in a solid ceramic disk 65 whose diameter corresponds approximately to that of the reflector part 52. These ceramic disc 65 has two outer slot-like holes 66 for receiving the spring feet. In the middle of an approximately arranged transversely to the holes slot 67 is recessed.

Externally on the ceramic disc 65, three wing parts 68 are arranged, which are intended for the central attachment of the clip in the sleeve 69 of a bayonet base.

The retaining clip itself has two parallel spring tongues 70 in the direction of the installation lamp, which surround the pinch 56 of the integral lamp from the base of the pinch seal. The two spring tongues 70 are guided during assembly through one of the two inner openings 53 of the reflector part.

The reflector part 52 itself is made of, for example, spring steel or spring plate, wherein the reflector part may also have a reflective coating on its upper side. Preferably, the reflector part is made of aluminum, which is high gloss coated or plated.

FIG. 9a and 9b shows a further embodiment of a halogen incandescent lamp 1 with retaining clip 71, also in exploded view. The main features of the retaining clip are similar as in FIG. 8 , However, base plate 60 and side walls are extended by means of a skirt 72. The apron has at its four corners holding claws 76, which can be clawed into the sleeve of a screw 77.

Only one of the two outer power supply lines 57 of the built-in lamp is extended with an extension wire 58, the other external power supply ends at a welding lug 75, which is cut out of the meat of the base plate 60.

FIG. 10a and 10b shows a very similar construction as FIG. 9 , However, here is omitted on a skirt, instead of an outwardly curved skid 80 is present on each side wall 61. At each end of each runner again sits a retaining claw 76, which can engage in the sleeve of a screw E27.

FIG. 11a and 11b shows a slightly different construction based on a retaining clip 20 with three spring feet, as in FIG. 3 is described. This construction is intended in particular for an E14 socket, wherein the reflector part 85 here correspondingly has a smaller diameter. For this reason, the reflector part 85 has only two openings. A first opening 86 corresponds to a first opening as in FIG FIG. 8 described, the second opening 87 corresponds to a second opening as in FIG. 8 described. However, this second opening 87 is so large that both the spring tongues 49 and the second external power supply 57 and the associated Extension wire 58 find space to pass through.

Again, an insulation of a power supply is required again, for example by means of shrink tubing in the region of the passage through the reflector disk.

The holding claws allow a centric fixation in the socket internal thread. It is important that the space in the putty-filled space of the system outer bulb socket is not cramped. For this purpose, the outwardly curved skid is well suited.

Claims (12)

1. Electric lamp comprising an outer bulb (13) and a base (2) fastened thereto with a base shell (42) and a longitudinal axis (A), wherein the outer bulb (13) surrounds a built-in lamp (5), which is equipped with a pinch seal (6) having two narrow sides (7a, 7b) and two broad sides (6a, 6b) as well as a bottom part (7c), wherein two outer power supply lines (23) protrude out of the bottom part (7c) of the pinch seal (6), said power supply lines for their part being electrically conductively connected to base contacts, wherein the built-in lamp (5) is held by a cement-free connecting means in the form of a holding clip (20), characterized in that the holding clip (20) has a platelike skirt (30) or baseplate (21), which acts as stop for the bottom part (7c) of the pinch seal (6), wherein the baseplate (21) or at least part thereof is aligned axially parallel, wherein at least two spring feet (33, 35a, 35b) are attached to the baseplate (21), with the aid of which spring feet mounting in the base shell (42) is accomplished.
2. Lamp according to Claim 1, wherein the skirt (21) is divided into two or three plate elements (25, 26, 27), of which at least one acts as stop, wherein the plate elements (25, 26, 27) are in particular all aligned axially parallel, but are arranged next to one another in a row at an angle.
3. Lamp according to Claim 1, wherein the skirt (21), in particular a plate element, has a first angular piece (29) at its outer edge, which angular piece is bent back towards the skirt (21) and runs parallel to the narrow side (7a, 7b) of the pinch seal (6).
4. Lamp according to Claim 3, wherein a second angular piece (34) is bent back towards the first angular piece (29) at the outer edge of the first angular piece (29).
5. Lamp according to Claim 1, wherein a first spring tongue (38) protrudes upwards on the skirt (30) in the direction of the first broad side (6a) of the pinch seal, as a guide for the pinch seal (6).
6. Lamp according to Claim 4, wherein a second spring tongue (39) protrudes upwards on the second angular piece (34) in the direction of the second broad side (6b) of the pinch seal (6), as a guide for the pinch seal (6).
7. Lamp according to Claim 1, wherein a bead (28) is applied to the skirt (30), with a first outer power supply line (23) being fastened to said bead.
8. Lamp according to Claim 1, wherein a second outer power supply line (23) extends spaced apart from the holding clip (20), in particular with the aid of an extension wire (45) fastened thereto.
9. Lamp according to Claim 1, wherein two spring feet (62) are aligned parallel to one another and axially parallel, wherein these spring feet (62) are in particular equipped with barbs (63) in order to anchor said spring feet in bores (66) in a ceramic disc (65).
10. Lamp according to Claim 1, wherein three spring feet (33, 35a, 35b) are attached to the baseplate (21), which spring feet accomplish three-point mounting in the base shell (42).
11. Lamp according to Claim 6, wherein a metal disc (52) acts as reflector part by virtue of it resting transversely to the longitudinal axis (A) on the clip (51), wherein the disc (52) has openings (59) for the outer power supply lines (58) of the built-in lamp (50) and at least one opening (53) for the spring tongues (70).
12. Lamp according to Claim 11, wherein the disc (52) has four openings (53, 59) along a straight line, two outer round openings (59) for the power supply lines (58) and two inner openings (53) for the spring tongues (70), wherein these openings (53, 59) are symmetrical with respect to the centre point of the disc (52).

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