EP2002462B1 - Lamp with a built-in lamp - Google Patents

Abstract

A lamp with a built-in lamp which is inserted into a base via a mounting clip and is surrounded by an enveloping bulb. The base and the enveloping bulb are joined via a joining compound or using a clamping technique. The mounting clip has securing elements, via which the enveloping bulb is held on the base once the joint has loosened.

Description

Technical area

The invention relates to a lamp with a built-in lamp, in particular a halogen built-in lamp, which is inserted via a mounting clip in a socket and surrounded by an enveloping piston, wherein the base and the enveloping piston are connected via a connecting mass or in a clamping technique.

State of the art

Halogen incandescent lamps are becoming increasingly popular in many areas of daily life due to their good quality of light and long service life. Even in applications with high demands on aesthetics and cost-effectiveness, the desire arose to replace conventional incandescent lamps operating with line voltage with halogen incandescent lamps. For these reasons, lamps were developed with halogen incandescent lamps used, which are surrounded by an outer bulb and are therefore externally hardly distinguishable from conventional bulbs for general lighting.

Such a lamp is described for example on the Internet domain www.osram.de under the product name "HALOLUX ^® T". In these conventional lamps, a one-sided squeezed halogen incandescent lamp is inserted via an electrically conductive mounting clip in a socket and surrounded by an outer envelope, wherein the base and the outer bulb via a connecting mass, For example, an adhesive or putty are connected. The mounting clip assumes both the electrical contact and the mechanical fixation of the built-in lamp in the base.

A disadvantage of the above-described solution is that the connection between the outer bulb and socket, for example, by aging and embrittlement of the bonding compound can solve, so that the outer bulb completely separates from the base and it is a lethal contact with the now exposed, live mounting clip in Lamp inside can come. Furthermore, there is a considerable risk of injury to the user by splinters of the shattered during falling falling outer bulb.

Presentation of the invention

The invention has for its object to provide a lamp with a built-in lamp, in particular a Halogeneinbaulampe, in which compared to conventional solutions a contact protection of the current-carrying components in the event of release of the enveloping piston is made possible.

This object is achieved by a lamp with a built-in lamp, in particular a halogen built-in lamp, which is inserted via a mounting clip in a socket and surrounded by an enveloping piston, wherein the base and the enveloping piston are connected via a connecting mass or in a clamping technique, wherein the mounting clip Has securing elements over which the enveloping piston is held after releasing the connection to the base.

Particularly advantageous embodiments of the invention are described in the dependent claims.

The lamp according to the invention has a built-in lamp, in particular a halogen built-in lamp, which is inserted via a mounting clip in a socket and surrounded by an enveloping piston, wherein the base and the enveloping piston are connected via a connecting compound, such as an adhesive, cement or the like, or in a clamping technique , According to the invention, the mounting clip has securing elements, via which the enveloping piston is held on the base after the connection has been released. Due to the securing elements, the enveloping piston can not completely detach from the base after loosening the adhesive, cement or clamp connection between the enveloping piston and the base, so that the live mounting clip continues to be protected against unintentional contact by the enveloping bulb and a risk of electric shock is ruled out.

According to a particularly preferred embodiment, the mounting clip has at least two spring tabs as securing elements.

It has proved to be particularly advantageous if the spring tabs for connecting the enveloping piston to the base are elastically bendable and can be brought into contact with the inside of the enveloping piston after releasing the connection with an enveloping piston neck of the enveloping piston.

Preferably, the spring tabs are arranged approximately diametrically to each other.

In a preferred embodiment, the spring tabs are bent out of a peripheral wall of the mounting clip and extend substantially radially outwardly and toward the socket. As a result, the sliding of the enveloping piston is facilitated, wherein the spring tabs bend elastically in the direction of the mounting clip and project after the installation of the enveloping piston as a kind of barbs and prevent the falling of a loose enveloping piston.

The spring tabs are at least partially arcuate in one embodiment of the invention, to further facilitate the sliding of the enveloping piston and to improve the support effect of the spring tabs on loose enveloping piston.

The mounting clip preferably has an approximately cylindrical jacket-shaped receiving portion for insertion of the integral lamp, which is formed according to a particularly preferred embodiment of the invention by diametrically opposed recesses in which a plane-parallel flattened portion of a pinch of the recessed lamp is clamped, which extended to the flattened area subsequent Edge portions of the pinch come to rest outside the receiving portion.

Preferably, the recesses bounding peripheral portions of the peripheral wall of the mounting clips are bent towards each other towards one another and extend approximately perpendicular to the two planar surfaces of the pinch.

In a preferred embodiment, the recesses each have two opposite each other arranged on spring elements, which are about two substantially axially extending oppositely disposed spring legs in abutment against the flattened region of the pinch can be brought and between which the pinch of the recessed lamp is clamped. In other words, the spring legs of the spring elements are resiliently against the two plane-parallel surfaces of the pinch and fix them centrally in the receiving portion of the mounting clip. The spring legs allow this to compensate for the manufacturing tolerances of the pinch and serve to center the built-in lamp in the mounting clip and their clamping attachment.

According to one exemplary embodiment of the invention, the upper spring limbs facing the integral lamp are angled in the shape of a skid and form an insertion bevel onto which cam-like protrusions arranged on the pinch seal on insertion of the integral lamp. The chamfers facilitate the insertion of the pinch during assembly of the integral lamp and limiting the run-up projections whose immersion depth in the mounting clip.

The base spring-facing lower spring legs are at least partially angled parallel to the plane surfaces of the pinch, so that a high clamping effect while facilitating insertion of the pinch is possible.

As a manufacturing technology particularly advantageous, it has been proven, the mounting clip as a sheet metal stamped bent part with at least partially perform approximately circular cross-section.

In the case of screw bases with an inner diameter which is similar in relation to the outer diameter of the mounting clip, for example E14 screw bases, the mounting clip can be screwed into the socket via a fastening section provided with circumferential screw-in projections. Alternatively, the mounting clip can be pressed with the base. This variant is used especially for larger sockets, such as E27 sockets, with the mounting clip then a transition clip is placed, which is pressed with the base.

The depth of engagement of the mounting clip in the base is preferably limited by contact of limiting elements of the mounting clip on an annular surface of the base. Due to the limiting elements an axial centering of the mounting clip is also achieved in the base.

According to a preferred embodiment, the integral lamp has two power supply lines (Strotze), wherein a first power supply of the integral lamp with the mounting clip and a second power supply via a power supply wire with a bottom contact of the base is electrically connected. The built-in lamp is electrically contacted via the power supply lines and fixed axially in the lamp.

Brief description of the drawings

Figur 1

eine Seitenansicht einer erfindungsgemäßen Lampe mit eingesetzter Einbaulampe;

Figur 2

eine Ansicht des Details A aus Figur 1;

Figur 3

eine Vorderansicht der Lampe aus Figur 1;

Figur 4

eine dreidimensionale Darstellung des Montageclips mit eingesetzter Einbaulampe;

Figur 5

eine Einzeldarstellung des Montageclips aus Figur 4 und

Figur 6

eine Ansicht des Details D aus Figur 4.

The invention will be explained in more detail below with reference to a preferred embodiment. Show it:

FIG. 1

a side view of a lamp according to the invention with inserted built-in lamp;

FIG. 2

a view of detail A from FIG. 1 ;

FIG. 3

a front view of the lamp FIG. 1 ;

FIG. 4

a three-dimensional representation of the mounting clip with inserted built-in lamp;

FIG. 5

an individual representation of the mounting clip FIG. 4 and

FIG. 6

a view of detail D off FIG. 4 ,

Preferred embodiment of the invention

FIG. 1 shows a side view of a lamp 1 according to the invention with a built-in lamp 2, which is mechanically and electrically connected via a mounting clip 4 with a base 6 and surrounded by an enveloping bulb 8. The base 6 is formed in the illustrated embodiment as a screw base type E14 and has an approximately cup-shaped, provided with a screw 10 stepped base sleeve 12, whose inner diameter is adapted to the outer diameter of the mounting clip 4. The enveloping piston 8 is tapered towards the base 6 towards an approximately cylinder-jacket-shaped envelope piston neck 14 whose outer diameter is slightly smaller than the inner diameter of the peripheral wall of the base sleeve 12, so that this cylinder jacket section is gripped by the base sleeve 12 in the installed state. The enveloping pistons 8 used may be any known from the general state of the art piston shape, for example a Drop shape, candle shape or mushroom shape or according to FIG. 1 be designed as a tubular piston 8. Depending on the application, frosted, clear or for an increased scattering effect silicated or partially silicated piston 8 made of glass are used. For connecting the enveloping piston 8, the mounting clip 4 and the base 6, a bonding compound 16, such as an adhesive or putty, introduced into an annular space bounded by the base sleeve 12 and the mounting clip 4, so that after curing of the bonding compound 16, a high-strength connection of this Components is guaranteed. In a variant of the invention, not shown, the enveloping piston 8 is connected to the base sleeve 12 instead of the adhesive connection in a clamping technique.

According to the invention, the mounting clip 4 is provided with securing elements 20, via which the enveloping piston 8 is held on the base 6 after the adhesive or cement compound has been released, for example by aging and embrittlement of the bonding compound 16. As will be explained in more detail below, the enveloping piston 8 can not completely separate from the base 6 after loosening the connection due to the securing elements 20, so that the live mounting clip 4 also after the release of the adhesive or cement compound by the enveloping piston 8 before accidental contact is protected and a risk of electric shock is excluded.

In particular FIG. 2 It can be seen that a view of the detail A from FIG. 1 shows, find in the illustrated embodiment, two diametrically opposed spring tabs 22, 24 as securing elements 20 use. These are for Connecting the enveloping piston 8 to the base 6 elastically bendable and after releasing the adhesive or cement compound with the enveloping piston 8 in the region of Hüllkolbenhalses 14 from the inside via end faces 26 into abutment, so that the enveloping bulb 8 is not completely separate from the base 6 can. The spring tabs 22, 24 are bent out of a peripheral wall 28 of the mounting clip 4 and extend in the radial direction arcuately outward approximately in the direction of the base 6. This facilitates the sliding of the enveloping piston 8, wherein the spring tabs 22, 24 elastically in the direction of mounting clips 4 bend and project after assembly of the enveloping piston 8 in the position shown in order to rest after the eventual release of the adhesive or cement compound on the end faces 26 against the Hüllkolbenhals 14 inside and secure the Hüllkolben 8 to the base 6.

According to the in FIG. 3 shown side view of the lamp 1 according to the invention, the integral lamp 2 is executed in the embodiment shown as a halogen incandescent lamp (halogen burner) in a conventional construction. Such a halogen incandescent lamp 2 consists essentially of an incandescent filament 30, which is provided, for example, with four filament sections 32 and is fixed in position in a lamp vessel 34 in a nodule technique. For this purpose, retaining studs 36 are diametrically opposed to each other in the wall of the lamp vessel introduced (see FIG. 1 ) and clamp connection parts 38 of the coil sections 32 between the end faces of the holding nubs 36 in order to fix the filament 30. This nubs technology is for example in the EP 0 446 460 B1 The applicant described in detail, so that further explanations are unnecessary. The lamp vessel 34 is sealed by way of a single-sided pinch 40 in which the two end sections of the incandescent filament 30 are connected via respective molybdenum foils 42 to power supply leads 44, 46 led out of the pinch seal 40. The pinch 40 is designed so that the in FIG. 3 middle area 47 with plane-parallel surfaces 48, 50 (perpendicular to the plane in FIG. 1 ) is executed, which merge into edge portions 52, 54 which are perpendicular to the plane in FIG. 3 projecting on both sides beyond the two plane surfaces 48, 50, so that the cross section (not shown) of the pinch 40 about double T-shaped with the extended edge portions 52, 54 and the intermediate, bounded by the two plane-parallel surfaces 48, 50 limited Region 47 is formed.

In particular FIG. 4 can be seen, which shows a three-dimensional representation of the mounting clip 4 with inserted lamp 2, the mounting clip 4 is formed from a sheet metal stamping to a matched to the socket inner diameter pipe or cylinder jacket, which is held together by means of engagement elements 56 with undercut force and form fit. At its end facing the built-in lamp 2 (top in FIG. 4 ), the mounting clip 4 has an approximately cylindrical jacket-shaped receiving portion 58 into which the pinch 40 of the built-in lamp 2 is inserted. This receiving portion 58 is in the described embodiment by diametrically opposed slot-shaped recesses 60 are formed, in which the plane-parallel flattened portion 47 of the pinch 40 of the built-in lamp 2 can be clamped, wherein the adjoining the flattened area extended edge portions 52, 54 of the pinch 40 outside of the receiving portion 58 come to rest.

According to FIG. 5 , an individual representation of the mounting clip 4 from FIG. 4 shows, the recesses 60 are bounding peripheral portions 62 of the mounting clip jacket 28 inwardly bent towards each other so that they are approximately perpendicular to the two planar surfaces 48, 50 of the pinch 40 (see FIG. 4 ). The recesses 60 go down in each case in an extended area 64, by the bending of the peripheral portions 62 of the two recesses 60 is made possible to the inside. For non-positive mounting of the built-in lamp 2 end portions of the peripheral portions 62 of the recesses 60 are punched free during punching of the sheet metal jacket and then bent inwards at right angles, so that they form two oppositely arranged spring elements 66, each opposite to each other over two substantially extending in the axial direction arranged spring legs 68, 70 according to FIG. 2 resiliently abut against the flattened portion 47 of the pinch 40 and pinch the pinch 40 of the built-in lamp 2. The spring legs 68, 70 allow compensation of the manufacturing tolerances of the pinch 40 and serve to center the built-in lamp 2 in the mounting clip 4 and as breakpoints for clamping attachment of Built-in lamp 2. As in particular FIG. 4 can be removed, engage behind the bent peripheral portions 62 of the two recesses 60 with inserted lamp 2, the two projecting edge portions 52, 54 of the pinch 40, which are then arranged outside the receiving portion 58 of the mounting clip 4. That is, the pinch 40 passes through the receiving portion 58 of the mounting clip 4 diagonally, the spring elements 66 rest on the spring legs 68, 70 on the flat surfaces 48, 50 of the pinch 40, so that the built-in lamp 2 is fixed in position in the radial direction.

In particular FIG. 2 and FIG. 6 Taking a view of detail D FIG. 4 shows, it can be seen, the overhead spring legs 68 of the spring elements 66 to improve the clamping effect and simplify the Einbaulampenmontage angled skid-shaped and form an insertion 72, accrue to the onset of insertion of the integral lamp 2 at the pinch 40 cam-like projections 74. The insertion bevels 72 facilitate the insertion of the pinch 40 during installation of the built-in lamp 2 and limiting the run-up projections 74 whose immersion depth in the mounting clip 4. The base 6 facing lower spring legs 70 are partially parallel to the flat surfaces 48, 50 of the pinch 40 angled , so that a high clamping effect while facilitating insertion of the pinch 40 is made possible. The Applicant reserves the right to make their own independent claims on the spring elements 66 for receiving the built-in lamp 2.

At its the base 6 end facing the mounting clip 4 according to FIG. 4 and FIG. 5 a with three offset by 120 ° to each other arranged, peripheral screw-in projections 76 provided mounting portion 78 through which the mounting clip 4 is screwed in the illustrated E14-Schrabsockel 6 with respect to the outer diameter of the mounting clip 4-like inner diameter, directly into the base 6 (see FIG. 1 and 3 ). For this purpose, the Einschraubvorsprünge 76 on a thread, which is designed according to the screw 10 of the E14 socket 6. The depth of engagement of the mounting clip 4 is limited by three offset by 120 ° to each other in a common radial plane, bent out of the Montageclipmantel, tab-shaped limiting elements 80, where an annular surface 82 of the base sleeve 12 in the assembled state from below (view FIG. 1 and 3 ) is present.

Alternatively, the mounting clip 4 may be pressed with the base 6. This variant is used especially for larger sockets, such as E27 sockets, wherein on the mounting clip 4 then a transition clip is placed, which is pressed with the base or connected via a connecting mass.

In particular FIG. 3 can be seen, the built-in lamp 2 has two power supply lines 44, 46 (Strotze), wherein a first power supply 44 of the built-in lamp 2 with the mounting clip 4 and a second power supply 46 via a power supply wire 84 with a bottom contact 86 of the base 6 is electrically connected. When mounting the built-in lamp 2 in the mounting clip 4 is the Power supply 44 by welding with a welding lug 88 (see FIG. 4 ) of the mounting clip 4. According to FIG. 3 is welded to the other power supply 46 of the power supply wire 84 which protrudes downward in extension of the power supply 46 through the interior of the mounting clip 4 into the base 6 and is electrically connected there to the ground contact 86. That is, the axial position fixation of the built-in lamp 2 by means of power supply lines 44, 46, which are welded to the mounting clip 4 and a power supply wire 84 to the ground contact 86. In order to make the weld accessible, two diametrically located apertures 90 (see FIG FIG. 4 ) introduced into the peripheral wall 28 of the mounting clip 4, which were punched out during punching of the sheet metal jacket.

In the following, the manufacture of the lamp 1 will be explained by way of example. In a first step, the power supply wire 84 is welded to the power supply 46 of the built-in lamp 2. Subsequently, the built-in lamp 2 is inserted into the mounting clip 4, so that the pinch 40 passes through the recesses 60 diagonally and centered over the in the direction of the pinch 40 projecting spring leg 68, 70 of the spring elements 66 and clamped. In a further step, the power supply 44 is welded to the welding lug 88 of the mounting clip 4 through the openings 90 through, so that the built-in lamp 2 is held axially in the mounting clip 4. Then, in the area of the annular surface 82, the bonding compound 16, for example an adhesive or putty, is introduced into the base shell 12 and the mounting clip 4 is screwed with the built-in lamp 2 via the Einschraubvorsprünge 76 in the base 6 until the limiting elements 80 come into contact with the annular surface 82 of the base 6. As a result, the depth of engagement is limited and the mounting clip 4 centered in the base 6. As a result, the enveloping piston 8 is inserted into the base sleeve 12, wherein the bonding compound 16 is displaced slightly inwardly upon insertion of the enveloping piston 8, since the outer circumference of the cylinder jacket portion is substantially flush with the inner peripheral wall of the base sleeve 12. Subsequently, the bonding compound 16 is baked in an oven or in a heating section and cut to length in the axial direction of the power supply wire 84 and soldered to the ground contact 86 of the lamp 1.

The lamp 1 according to the invention is not limited to the described halogen built-in lamp 2 and the screw 6, but the invention can be found with different known from the prior art Einbaulampen- and socket types, especially with two-sided socketed built-in lamps, use. Furthermore, the clamping bracket of the built-in lamp 2 in the mounting clip 4 in any way, for example, alone by adjoining peripheral edges or areas of the recesses 60 done.

Disclosed is a lamp 1 with a built-in lamp 2, in particular a halogen built-in lamp, which is inserted via a mounting clip 4 in a base 6 and surrounded by an enveloping bulb 8, wherein the base 6 and the enveloping bulb 8 via a connecting mass 12 or in a Clamping technology are connected. According to the invention, the mounting clip 4 has securing elements 20, via which the enveloping piston 8 is held on the base 6 after the connection has been released.

Claims (15)

1. Lamp with a built-in lamp (2), in particular a built-in halogen lamp, which is inserted into a base (6) via a mounting clip (4) and is surrounded by an enveloping bulb (8), the base (6) and the enveloping bulb (8) being joined via a joining compound (16) or using a clamping technique, characterized in that the mounting clip (4) has securing elements (20), via which the enveloping bulb (8) is held on the base (6) once the joint has loosened.
2. Lamp according to Claim 1, the mounting clip (4) having at least two spring lugs (22, 24) as securing elements (20).
3. Lamp according to Claim 2, the spring lugs (22, 24) being elastically flexible for joining the enveloping bulb (8) to the base (6) and, once the joint has loosened, being capable of being brought to bear from the inside against an enveloping bulb neck (14) of the enveloping bulb (8).
4. Lamp according to Claim 2 or 3, the spring lugs (22, 24) being arranged approximately diametrically with respect to one another.
5. Lamp according to one of Claims 2 to 4, the spring lugs (22, 24) being bent out of a circumferential wall (28) of the mounting clip (4) and extending substantially in the radial direction outwards and in the direction of the base (6).
6. Lamp according to one of Claims 2 to 5, at least sections of the spring lugs (22, 24) being arcuate.
7. Lamp according to one of the preceding claims, the mounting clip (4) having an accommodating section (58), which is approximately in the form of a cylinder casing, for inserting the built-in lamp (2), which accommodating section (58) is formed by cutouts (60), which are arranged diametrically with respect to one another and in which a region (47), which is flattened in planar-parallel fashion, of a pinch seal (40) of the built-in lamp (2) can be clamped and extended peripheral sections (52, 54), which adjoin the flattened region (47), of the pinch seal (40) come to lie outside the accommodating section (58).
8. Lamp according to Claim 7, circumferential sections (62), which delimit the cutouts (60), of the circumferential wall (28) of the mounting clip (4) being bent inwards towards one another and running approximately perpendicular to the plane faces (48, 50) of the pinch seal (40).
9. Lamp according to either of Claims 7 and 8, the cutouts (60) each having two spring elements (66), which are arranged opposite one another and can be brought to bear against the flattened region (47) of the pinch seal (40) via two spring limbs (68, 70), which extend substantially in the axial direction and are arranged opposite one another, and between which spring elements (66) the pinch seal (40) of the built-in lamp (2) can be clamped.
10. Lamp according to Claim 9, the upper spring limbs (68) facing the built-in lamp (2) being bent back in the form of runners and forming an insertion bevel (72), onto which cam-like projections (74) arranged on the pinch seal (40) run when the built-in lamp (2) is inserted.
11. Lamp according to Claim 9 or 10, at least sections of the lower spring limbs (70) facing the base (6) being bent back parallel to the plane faces (48, 50) of the pinch seal (40).
12. Lamp according to one of the preceding claims, the mounting clip (4) being a stamped and bent sheet-metal part and at least sections of it having an approximately circular cross section.
13. Lamp according to one of the preceding claims, the mounting clip (4) having a fastening section (78), which is provided with screw-in projections (76), which can be brought into threaded engagement with the base (6).
14. Lamp according to Claim 13, the screw-in depth of the mounting clip (4) into the base (6) being limited by limiting elements (80) bearing against an annular face (82) of the base (6).
15. Lamp according to one of the preceding claims, a first power supply line (44) of the built-in lamp being electrically connected to the mounting clip (4), and a second power supply line (46) being electrically connected to a bottom contact (86) of the base (6) via a power supply wire (84).

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