WO2009059882A2

WO2009059882A2 - Electric lamp comprising an outer bulb and an integrated lamp

Info

Publication number: WO2009059882A2
Application number: PCT/EP2008/064129
Authority: WO
Inventors: Benjamin Danfi; Roland Stark; Matthias Zeiner
Original assignee: Osram Gesellschaft mit beschränkter Haftung
Priority date: 2007-11-09
Filing date: 2008-10-20
Publication date: 2009-05-14
Also published as: DE102007053564A1; WO2009059882A3

Abstract

The invention relates to an electric lamp comprising an integrated lamp and a base. Said integrated lamp is connected to the base by means of a plug connection that uses a metal strip.

Description

Tite l

Electric lamp with an outer bulb and a built- ^¬ lamp

Technical area

The invention relates to an electric lamp, comprising a built-in lamp arranged in an outer bulb and a base, wherein the base with power supply ^¬ wires of the integral lamp is electrically connected. The invention further relates to a one-sided gesockel- te electric lamp with a mounted in a base outer piston and at least one disposed within the Außenkol ^¬ bens integral lamp, preferably a high ^¬ volt halogen lamp, and at least two current supply ^¬ wires from the base to the integral lamp, wherein the built-in lamp is held on the power supply wires.

State of the art

For general lighting electric incandescent lamps are known, which consist of a halogen built-in lamp, an outer ^¬ piston and a base. Halogen lamps consume in order to achieve the same brightness, ge ^¬ genüber conventional incandescent lamps much less energy. In order to facilitate the conversion from energy-consuming incandescent lamps to halogen incandescent lamps, these halogen incandescent lamps are provided with the same sockets (eg E27, E14, etc.) as the incandescent lamps, so that they can be used in existing luminaires. In such lamps, a frame is provided on the plate base for holding the integral lamp, wherein the disc base is fused with the outer bulb. The power supply wires projecting from the installation lamp are electrically conductively connected via contact wires to the contact points of the socket. The connection is made by soldering or welding on the one hand with the power supply wires of the built-in lamp, on the other hand, for example, with the base sleeve and an electrically insulated from the base sleeve center contact. The preparation of such a lamp has been very expensive.

DE-A 10 2005 051 076 discloses a holder for egg ^¬ ne built-in lamp, which consists of a metallic mounting clip, in which the built-in lamp is inserted. The mounting clip is attached to the glass plate foot of the outer bulb, which is very expensive, since the glass foot is a very complex component, which includes, for example, exhaust tube and melted Zufüh ^¬ rung wires. Furthermore, the metallic holding tion is visually very conspicuous, and interferes with the contacts of a classic bulb ^¬ rectangular, transparent appearance significantly.

Presentation of the invention

The invention has for its object to simplify the production of a lamp consisting of a built-in lamp, a So ^¬ ckel and an outer bulb. The invention is also based on the object of the invention, a one-capped electric lamp with an outer bulb attached to a base and arranged inside the outer bulb built-in lamp create that is robust and easy to produce. Preferably, the integral lamp is a high-voltage halogen incandescent lamp with pin base, wherein at least two pins act as power supply wires. The built-in lamp is held to the power supply wires.

This object is achieved in a lamp according to the preamble of the main claim by a special plug connection between the base and the built-in lamp incorporating a known base stone.

The recessed lamp consists essentially of a hermetically ^¬ closed lamp vessel, at least one luminous element and a power supply system for the luminous element, which usually consists of two pins, which protrude from a pinch of the integral lamp axis parallel. 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 Stromzu ^¬ management system consists for example of inner power supply wires, from Einschmelzfolien and outer power supply wires, wherein the mutually aligned ends of the inner and outer power supply wires and the power supply wires connect together ^¬ the Einschmelzfolien are molten in the lamp squeezing. Essential to the invention is only the pinch and the outwardly projecting pins. The built-in lamp is usually filled with an inert gas and a halogen additive. Instead of an incandescent lamp, however, a high-pressure discharge lamp can also be used as a built-in lamp, similar to that described in DE-A 32 32 207. - A -

The pins of the built-in lamp are connected to the base. For example, the socket consists of a socket sleeve which provides side contact and center contact, as known per se. Connection contacts are provided for the connection between the power supply wires of the built-in lamp and the socket contacts. According to the invention, additional fastening measures such as soldering or welding are dispensed with in the connection contacts; they are only connected purely mechanically.

For holding the built-in lamp, a base stone is provided which has a receptacle in its area facing the built-in lamp. The receptacle is ausgebil ^¬ det, that at least part of the lamp pinch is surrounded by the base stone. In a preferred embodiment, the inner contour of the receptacle essentially corresponds to the outer contour of the lamp pinch. Additional brackets for mounting the recessed lamp in the base stone are not required. The base also has two approximately paraxial holes for the connection contacts.

The base stone consists, as is known, of an electrically insulating material. As a material for the base stone, for example, glass or Ke ^¬ ramik is suitable, at least one material that can be easily poured into a mold to ensure an inexpensive production of the base stone. Also suitable is a hard rubber or a plastic which has the required electrical insulation properties.

In addition to the receptacle for the built-in lamp, at least two bores are provided in the base brick. These extend substantially in the longitudinal direction of the lamp. Advantageously, each bore extends paral ^¬ lel to the lamp longitudinal axis. The bore is provided for receiving one of the connection contacts. Thus, the connection contact is surrounded by the insulating material of the Sun ^¬ ckelsteins. Thus, a short circuit is excluded between the first connection contact and the sleeve of the base or the second connection contact.

The connection contact consists essentially of a metal strip made of sheet metal, which is provided at its the lamp fitting end with a fastening device according to the invention and in particular additionally with a guide member.

The metal strip is punched out of a metal sheet, for example, wherein the strip is wider in the area in which the fastening device is later provided than in the remaining area. This laterally projecting region is then formed into a groove or sleeve. This is done by bending over the protruding area. In cross section, the sleeve may be round or substantially round (eg oval). According to an advantageous variant of the invention, the projecting area is formed by multiple angles, in particular by approximately 90 °, to form a channel. The cross section has in this case a base part of Stripes ^¬ fens, a deflecting part and a side part, which are each placed against one another and are preferably interconnected via a 90-degree angle.

The sleeve or channel can also be closed on all sides, so that in the case of the channel still a fourth side part added. However, this is not necessarily erfor ^¬ sary. A three-sided trained trough is suffi ^¬ accordingly and material saving. The sleeve or channel serves as a guide for a pin of the built-in lamp.

The side wall of the channel has a punched-out clamping tab as a fastening means for the pin. This clamping tab projects into the interior of the channel, where ^{¬ is} achieved by an extreme clamping effect. The clamping ^¬ tab is resiliently connected to the side wall of the metal strip and punched out of this, preferably, it sits at the installation of the lamp facing side of the side wall. The clamping tab protrudes before installation with its free ^¬ en end in the direction of the side wall opposite base.

If the external power supply wire, in particular a pin, the built-in lamp inserted into the channel ver ^¬ prevents the resilient clamping plate like a barb withdrawing the power supply wire. The Ver ^¬ connection between power supply wire and Verbindungskon- is self-locking stroke.

The self-locking can be increased by roughening the surface of the power supply wires. The power supply wires are provided for example with Vertiefun ^¬ gene or protrusions. The depressions are produced, for example, by impressing. Also, the power supply wire may be corrugated. By these measures, the friction between the power supply wire and terminal ^¬ tab is increased and the connection insoluble or almost insoluble. The connection contacts preferably have latching means, with which they are inhibited by clamping in the bore of the base. These locking means are provided in particular at least at the base of the connection contact and abut against the inner wall of the bore. Preferably, the latching means is a dent, which produces a clamping action to the bore, in particular may be provided for anchoring the latching means in the bore a recess or step in the bore, in or behind the dent rests latching.

To improve the clamping action, the locking means may also include a counterpart, which is mounted on the opposite side, ie on the side wall. This is an outwardly projecting tab, which protrudes toward the wall of the bore and is preferably attached to the end of the side wall opposite the barb. The ^¬ se tab is also resilient. With the Del ^¬ le and tab together as latching means connects the ground contact is in the bore in the best possible clamping buildin ^¬ Untitled. It is sufficient for a basic clamping effect, either the dent or tab alone as locking means.

In a particularly preferred embodiment, the deflection part has a guide rocker for the pinch. This is an extension piece pointing towards the deflector for the recessed lamp, which is slightly wavy and thus resilient. To improve the spring action, it has a neck down on the approach to the deflection out. The guide rocker is clamped to the broad side of the pinch of the recessed lamp. By a second Fürschwungsschwinge from the other broadside of the Pinching her also clamped against the pinch, an excellent leadership and clamping effect is achieved with respect to the built-in lamp.

The socket-side end of the base part is in each case provided with an angled contacting part. It varies depending on the purpose. The PLEASE CONTACT ^¬ approximately part protrudes downward out of the base insulator. The contacting part forming the side contact is bent in such a way that it ^encompasses the lower end of the base brick. It has an angled 90 ° center piece and bent back by 90 ° again parallel to the base, preferably wavy tail. The the center contact bil ^¬ Dende contacting part is bent such that it has an offset and a laterally bent end portion which terminates in a type ladle as the actual contact. Both the side contact and the with ^¬ tenkontakt are locking on to the base sleeve. In this way, an electrical connection between Ver ^¬ connection contact and base shell and thus ultimately between see power supply wire and base sleeve created. A soldering or welding of the contacts is of course not excluded, but not absolutely necessary.

The second connection contact is secured to the base stone by the latching means and the angled end forming the center contact. Both contacts of the base are separated by the existing of insulating material base stone. Base and base are then connected with cement. The outer bulb is also connected to the base by means of putty. It has proven advantageous to make the guide wings integral with the metal strips of the connection contacts, in principle they could also be separate parts. The connection contacts are so-preferred for the metal strip with the mounting ^¬ device for the power supply wires and the Füh ^¬ approximately swing for holding the lamp. By a bending process, the channel and realized by a stamping process, the resilient design of the guide wings.

Brief description of the drawings

In the following the invention is described in more detail with reference to figures. Show it:

Fig. 1 is an exploded view of a lamp according to the invention;

Fig. 2 is a built-in lamp, connected to the connection contacts;

3 is an enlarged detail of the connection between the outer power supply wires of the built-in lamp and the connection contacts.

4 shows a section through the lamp according to the invention;

Fig. 5 shows an enlarged detail of the Sockelbe ^¬ realm of the lamp of Fig. 4.

Preferred embodiment of the invention

FIG. 1 shows a lamp 1 according to the invention in an exploded view. In a base 50 of the commercial type E27, an outer bulb 6 of the type A55 is held. Within the outer bulb 6 is a built-in lamp 2 so arranged that a luminous element 21 of the built-in lamp 2 is approximately at the point within the outer bulb 6, to which in a conventional incandescent lamp also the filament is arranged. The built-in lamp 2 is designed as a so-called high-voltage halogen incandescent lamp and known as such from the prior art.

The lamp 1 furthermore has a base brick 3, connecting contacts 4a, 4b.

The built-in lamp 2 is, for example, a one-side crushed halogen incandescent lamp. This halogen incandescent lamp has a lamp vessel 20. The luminous element 21 is electrically conductively connected to a base 50 via a power supply system. The power supply system consists of inner power supply wires 22, fusing foils 23 and outer power supply wires 24 connected to the luminous body 21, which are designed as pins. The ends of the inner power supply wires 22 facing away from the luminous element 21, the fusible foils 23 and the ends of the outer power supply wires 24 facing the fusible films 23 are fused in a lamp pinch 25 which closes the lamp vessel 20. The bruise is as known per se equipped with two narrow sides and two broadsides.

The lamp vessel 20 is filled with an inert gas and a halogen additive. At its end opposite to the lamp squeeze 25, the lamp vessel 20 has been melted off. The lamp vessel 20 is hermetically sealed abge ^¬ closed to the outside.

The built-in lamp 2 is held by a base stone 3. The base stone 3 consists of an integrally formed Body 30, which has a receptacle 31 for receiving the built-in lamp 2 in its area facing the built-in lamp 2.

Of the receptacle 31, only the lamp pinch 25 is preferably picked up to a certain extent. The rest of the lamp vessel 20 protrudes beyond the base stone 3.

According to one embodiment, the contour of the In ^¬ Neren the retainer 31 surrounds the outer contour of the Lampenquet ^¬ Research 25 so tightly, so as to mount the integral lamp 2 no further retaining means are necessary.

In the base block 3 holes 32 are provided. These holes 32 extend parallel or substantially parallel to the lamp longitudinal axis A of the invention ^shown SEN lamp. 1

After the illustrated embodiment, the Boh ^¬ ments 32 are arranged approximately symmetrically to the lamp longitudinal axis A. The bores 32 consist of channels introduced into the base brick 3 and extend over the entire length of the base brick 3.

In these holes 32 connecting contacts 4a, 4b are introduced, with which the outer power supply wires, the pins 24, the built-in lamp 2 are connected to the contacts in So ^¬ ckel 5.

The connection contacts 4 are made of electrically conductive material. Advantageously, they are formed by metal ^strips 40, see FIG. 2, which are punched out of a sheet steel, for example. A first end of the metal strips 40 is connected to one of the pins 24 the integral lamp 2 and the second end connected to one of So ^¬ ckelkontakte.

For connecting the metal strips to the external power supply wires 24, a fastening device 41 is provided on the metal strip 40, which causes a self-locking connection between the connection contact 4 and the power supply wire 24.

The structure of the metal strip is as follows. The längli ^¬ che metal strip is effectively bond contact the base of the comparison. The fastening device 41 consists of a molded onto the base part 4 groove. The channel is formed of a laterally attached to the base part short deflection and a turn attached sidewall. All three parts are angled 90 ° to each other. The side wall is provided at its end facing the installation lamp with a fastening means, namely a resilient clamping tab 42 which projects inwardly into the channel inside. By means of this resilient clamping tongue 42, the pin 24 is reliably clamped in the fastening device 41. When inserted into the gutter pin 24 is a retreating is virtually impossible or at most to accomplish with great effort.

The remote from the pins 24 second end of the metal strip 40 of the first connection contact 4a is led out of the base block 3 at the lower end of the bore 32 and U-shaped ^¬ by two kinks, with a center piece and an end piece. The lower end of the base 2 is partially surrounded by this "U". The free end of the first connection contact 4a is clamped between the base brick 2 and the first contact of the base 5 forming base sleeve 50. Base sleeve 50 and connection contact 4a are thus electrically connected to each other electrically conductive, without both parts are soldered or welded together.

The second connecting contact 4b also has its the integral lamp 2 end facing a Fixed To ^¬ constriction device 41 for connecting the power supply wire 24 and connection contact 4b. The design is the same as in the first connection contact 4a. The free second end of this Verbindungsungskontak ^¬ tes 4b has an angled portion through which the second contact, the center contact 51 is formed or contacted. This angled portion is Below the base insulator 3, in particular at the lower end of the bores 32 to the severing means of the web 33 so ^¬ ckelsteins. 3 The free end has first a Kröp ^¬ tion and then connect an approximately at right angles angled end, which resembles a ladle.

In order to ensure that the center contact 51 of the connecting contact is applied to the base insulator 3 is designed to be resilient in longitudinal alignment ^¬ ner 4b. The metal strip ^¬ has a zigzag shaped bend that allows the springs of the middle contact 51st

Both connection contacts 4a, 4b are thus at the un ^¬ direct end of the base block 3 at.

4a further comprise both connection contacts, 4b Be ^¬ fastening tabs 43 on the base end of the side wall which form a friction fit with the wall of the bores 32, by acting as an outwardly projecting Tongues are formed. A step 34 in the recess 32 may form an abutment, so that the connection contact 4a, 4b in the recess 32 is particularly well gesi ^¬ chert. The connection contacts 4a, 4b can not be removed from the base stone 3 without tools.

A particularly good clamping connection of the connection contact in the base stone is achieved in that in addition also a respective dent 44 on the base part in the amount of Sei ^¬ tenwand outwardly, ie the wall of the bore, protrudes.

By fixing the power supply wires 24 with the connection contacts 4a, 4b and the receptacle 31, the built-in lamp 2 is fixed in position relative to the base.

To easily insert the built-in lamp 2, to hold and possibly to adjust their position, guide wings 45 are additionally provided in the receptacle 31. These guide wings 45 are advantageously connected to the connec ^¬ tion contacts 4 or in particular made in one piece with the connection contacts 4. Each guide rocker 45 consists according to this embodiment of the invention of a resilient clip which presses the broad side of the lamp pinch 25 laterally slightly against the inner wall of the receptacle 31. The clip of the second connection contact 4b is mounted on the opposite broad side of the lamp pinch 25 and presses therefrom the lamp pinch 25 on the opposite wall of the receptacle 31. The integral lamp 2 is thus not only by the connection of the pins on the fastening device 41 with the connection contacts. 4 , but also about the trained as a leadership swing Retaining elements 45, which pinch the pinch, held.

According to a further embodiment of the invention, not shown, the fastening device, which is provided for connecting the power supply wires with the connection ^¬ contacts, not as a groove, but as a surrounding sleeve.

According to a further advantageous embodiment, the clamping lug interacts directly with the wall of the recess. On a hollow body or a sleeve can be omitted in this case. The power supply wire is then clamped between the clamping tab and the wall of the recess.

After the built-in lamp 2, the base stone 3 and the So- disgust 5 are connected to each other, a putty is needed only for the attachment of the outer bulb.

The cement is introduced ^¬ in liquid state into the socket 5 and forms after curing, which is optionally accelerated by heating, a solid insoluble connecting element between the individual components of the lamp 1 according to the invention.

With the invention, an electric incandescent lamp is geschaf ^¬ fen, which is inexpensive to manufacture and can replace ^¬ conven tional, energy-consuming light bulbs.

Claims

claims

1. Electric lamp with an outer bulb and a built-in lamp arranged therein and a longitudinal ^¬ axis, wherein the outer bulb is a socket with base sleeve and base stone is recognized, the base sleeve with out of the integral lamp herausra ^¬ ing outer power supply wires (24) via connection contacts (4). electrically conductive verbun ^¬ is the, is characterized in that a purely me ^¬ chanical plug connection between the base (5) and built-in lamp (2) is realized by the connection contact is an elongated metal strip which is guided in the bore of the base, and the one Fastening means for the outer power supply wire of the recessed lamp has lamp side and having a contacting means for a contact on the base sleeve.

2. An electric lamp according to claim 1, characterized in that on the metal strip as a base part laterally a deflecting part and a side wall is attached angle-Kelt, so that all parts together ei ^¬ ne groove form, wherein the fastening means for the power supply is attached to the side wall ,

3. Electric lamp according to claim 2, characterized in that the fastening means on the

Sidewall attached tab which protrudes inwards into the gutter.

4. An electric lamp according to claim 2, characterized in that the connection contact has at least one latching means for locking the connection contact in the bore of the base brick.

5. An electric lamp according to claim 4, characterized in that the latching means has a dent which protrudes on the base part to the outside, to the bore.

6. An electric lamp according to claim 4, characterized in that the latching means has an outwardly ^¬ standing tongue, which is set to the side wall ^¬ .

7. An electric lamp according to claim 2, characterized in that the deflecting part at its end facing the lamp has a guide rocker, which bears against one end of the built-in lamp.

8. An electric lamp according to claim 7, characterized in that the built-in lamp is squeezed on one side, wherein the pinch has two broad sides, and wherein in each case a guide rocker rests on a broad side.

9. An electric lamp according to claim 1, characterized in that at the socket-side end of the metal strip ^¬ a laterally angled contacting tion part is attached.

10. Electric lamp according to claim 9, characterized in that the center contact (51) of one of the connection contacts (4b) is formed by the Contacting part has a laterally projecting end ^¬ piece, which resembles a ladle.

11. An electric lamp according to claim 8, characterized in that the side contact of one of the connection contacts is formed by the contacting part is U-shaped and has a laterally angled center piece and an attached thereto again angled end piece.