EP0556710B1 - Lamp - Google Patents

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Publication number
EP0556710B1
EP0556710B1 EP93102109A EP93102109A EP0556710B1 EP 0556710 B1 EP0556710 B1 EP 0556710B1 EP 93102109 A EP93102109 A EP 93102109A EP 93102109 A EP93102109 A EP 93102109A EP 0556710 B1 EP0556710 B1 EP 0556710B1
Authority
EP
European Patent Office
Prior art keywords
lamp housing
lamp
housing
circuit board
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93102109A
Other languages
German (de)
French (fr)
Other versions
EP0556710A3 (en
EP0556710A2 (en
Inventor
Friedhelm Harnischmacher
Stefan Volpert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooper Crouse Hinds GmbH
Original Assignee
CEAG Sicherheitstechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CEAG Sicherheitstechnik GmbH filed Critical CEAG Sicherheitstechnik GmbH
Publication of EP0556710A2 publication Critical patent/EP0556710A2/en
Publication of EP0556710A3 publication Critical patent/EP0556710A3/en
Application granted granted Critical
Publication of EP0556710B1 publication Critical patent/EP0556710B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F21V14/045—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors in portable lighting devices

Definitions

  • the invention relates to a lamp housed in a lamp housing, possibly movable reflector and a lamp holder socket, with a switch that can be actuated outside the lamp housing, the socket being fastened to a plate inserted into the lamp housing, and the lamp housing on its
  • the opposite side of the radiation side has an opening that can be closed by means of a cover, through which the plate can be inserted into the interior of the lamp housing.
  • a lamp which is provided with a reflector accommodated in a lamp housing and a base which receives the lamp and with a switch which can be actuated from outside the lamp housing to switch on the lamp has become known, for example, from the CEAG lamp, type BWE 6.1.
  • This lamp has a lamp housing that can be cut from an extruded profile, the housing can be closed on one side with a transparent pane and on the other side with a cover. There are grooves inside the housing on the inside, which are offset by 120 ° from each other. From the side that is closed by means of the cover, a chassis level is used, to which a heat shield is attached is that axially divides the luminaire housing into two rooms and carries a base with an inserted lamp on the lamp side.
  • a ballast is also attached to the chassis level, and the chassis level is axially displaceable by means of an externally operable screw, the screw not being present in special cases, then other fastening elements for the chassis level must be found. Because of the 120 ° offset grooves on the inside, special fastening elements are required for the chassis level; a simple insertion into two mutually opposing grooves does not appear to be easily possible. Furthermore, it is not specified where a switch might be located. There is no indication that the switch is inside the luminaire housing.
  • a lamp which has become known which has a pot-shaped housing which has an opening in the bottom into which a lamp is inserted and held therein.
  • the bottom is covered from the outside by means of a transparent cover cap.
  • a circuit board In the interior of the pot-shaped housing, a circuit board is used, which carries electronic components; the open side is covered by a closure plate and moreover with a closure cap through which electrical conductors of the lamp are fed.
  • the lamp is not supported by the circuit board because the lamp holder is in the bottom of the housing.
  • a switch is also not shown.
  • the object of the invention is to provide a lamp of the type mentioned, in which the replacement of the lamp and possibly also certain electrical components within the lamp housing is simplified.
  • the plate is designed as a circuit board on which the socket and the switch operable from the outside are directly attached, and that the electrical connections between the switch and the lamp and to terminals on the lamp housing by located on the circuit board Traces are generated.
  • An advantageous embodiment of the invention can be such that the lamp housing has a further opening that is sealed by a transparent plate laterally to the direction of radiation, through which an additional display mounted on a circuit board that can be inserted into the lamp housing from behind is visible.
  • a further advantageous embodiment of the invention can be such that the coupling between the switch and a switching handle located outside the lamp housing is divided in its longitudinal direction and transversely to the direction of insertion of the circuit board in such a way that the coupling does not have to be released when the circuit board is pulled out.
  • control handle which has approximately a semicircular cross section; this semicircular cross section becomes a full circle cross section supplemented by an extension on the switch, the parting plane between these two extensions being arranged such that a power transmission from the handle to the switch is possible, but the two extension sections can be separated from one another when the circuit board is pulled out.
  • a further embodiment of the invention can, in particular, if the lamp housing is closed at the front in the light emission direction by means of a clearly transparent pane, in that a lip is formed on the housing which projects inwards and resiliently abuts against the front surface of the pane serves as a sealing lip for the seal between the housing and the reflector space.
  • this sealing lip can be integrally formed on the rotating ring.
  • the lip formed on the inside of the housing or rotating ring forms an acute angle with the surface lines of the inner surface of the housing or rotating ring; the radial thickness of the lip will then decrease in a wedge shape towards its free end. So that the sealing lip also serves and acts as a sealing lip, it will have a certain elasticity. Possibly.
  • the annular space formed between the reflector, the sealing lip edge and the housing or the rotating ring, which is triangular in cross section, can additionally be filled with a sealing compound.
  • a lamp 10 has a lamp housing 11, to whose section shown in the drawing above a handle 12 connects.
  • the housing 11 in the present form has a circular cross section and is closed at its one end, which is at the rear in the light emission direction, by means of a cover 13 which has a cup edge 14 which extends from the housing 11 with a projecting section 15 with an enlarged inside diameter and the same outside diameter below Interposition of a seal 16 is included.
  • the other front end has an internal thread section 17, into which an external thread section 18 of a rotating ring 19 is screwed, which in turn has an internal thread 20 in the area of the external thread section 18.
  • the rotary ring 11 has at its front end opposite the external thread section 18 an inwardly projecting lip 21, which is arranged all around and which, inclined at an angle alpha to the surface line of the rotary ring, projects in the direction of the internal thread 20.
  • the lip 21 forms a resilient shoulder 22, against which lies a front glass pane 23 which, together with an additional pane 24, which has a central, magnifying glass-like thickening 25, forms a type of laminated glass pane.
  • the glass panes 23/24 are followed by a reflector 26, which has a cylindrical extension 27 at its free end with a large diameter, the outside diameter of which is adapted to the inside diameter of the rotating ring, which corresponds to the inside diameter of the threaded section 20.
  • the transition from the cylindrical extension 27 to the paraboloidal reflector section 26a has on its outer surface a radially extending step 28, against which a threaded ring 29 with an external thread rests when the threaded ring 29 is screwed into the internal thread 20.
  • the threaded ring 29 has at least two mutually opposite, inwardly open grooves 30.
  • the inner reflector with the socket 32 is fastened on a printed circuit board 36, see FIG. 3, to which a switch 37 is also fastened, which switches one radially outwards Has a projecting shift shaft section 38 pointing towards the handle 12, which is coupled to this shift handle 40 with a shift shaft section 39 that extends inwards from a shift handle 40 and runs parallel to it.
  • the shift handle 40 is rotatably mounted in a depression 41, the bottom of the depression 41 engaging with a projection 42 in a first groove 43 and a cylindrical projection 44 in a groove 45, and the shift shaft section 39, with the interposition of a seal 46, an opening 47 engages in the housing 11.
  • FIG. 1 shows that two variants for inserting secondary lamps 50 and 51 can be provided.
  • the inner reflector 33 has an auxiliary connector 52 which runs parallel to the connector 32 and in which the auxiliary lamp 50 is received;
  • the secondary lamp 51 is inserted into a secondary reflector 53 which has an ellipsoidal contour; the light reflected by the secondary reflector 53 is emitted to the outside through an opening 44 in the inner reflector 33 or in the reflector section 33.
  • the connector 32 are attached to the circuit board 36 by means of rivets 55, 56 and the switch 37 in a manner not shown on the circuit board 36.
  • an L-shaped contact pressure spring 57 is fastened on the side of the circuit board 36 on which the connector 32 is located, one leg of which is parallel to the circuit board 36 and their other Leg in the form of a resilient contact element extends perpendicular to it and comes into contact with one of the contact pieces of the lamp 35.
  • the conductor tracks on the printed circuit board then connect the resilient contact element to the one contact piece of the switch 37.
  • the housing 11 To insert the circuit board 36, the housing 11 has two mutually opposite grooves 58 and 59 which receive and guide the circuit board 36.
  • grooves 58 and 59 In addition to the grooves 58 and 59, further grooves 60, 60a and 61, 61a or 62 and 63 are provided, into which further printed circuit boards 64, 64a and 65 can be inserted.
  • a support 66 is fastened to the printed circuit board 65, to which a cup-shaped container 67 for receiving an electronic display 68 is fastened; in a housing projection which projects inwards from the housing 11, a disk 71 is inserted by means of a sealing element 70, through which the display 68 is visible.
  • the arrangement of such windows is known per se, and in particular it is also known that windows of this type must be sealed in explosion-protected lamps, so that this will not be discussed in more detail here.
  • a pane 71 is provided, through which a display 68 is visible.
  • the lip 21 is designed to be resilient due to its slightly tapering contour, so that the lip 21 can serve as a seal with a corresponding preload force that is generated by the threaded ring 29.
  • the V-shaped or triangular cross-section could be used Section 21a, which the sealing lip 21 forms on account of its shape with the rest of the rotating ring region and the disk 23, can be poured out with a sealing compound (21b).
  • the two switching shaft sections 38 and 39 are designed such that, in the assembled state, as shown in FIG. 1, both switching shaft sections are coupled to one another, whereas, when the switch is switched off, easy disassembly, i. H. easy removal of the circuit board 36 with the switch 37 and the internal reflector 33 with the socket 32 is possible.
  • the ring 19 has on its outer circumference a circumferential recess 72 into which a screw 73 screwed through the housing 11 engages; if the rotating ring 19 and thus the reflector 26 is rotated, which leads to a change in the position of the focal point of the reflector, then the screw 73 strikes the circumferentially spaced ends of the recess 72, making further rotation of the rotating ring impossible. That the screw 73 and the recess 72 must be provided is due to the fact that the lamp is to be used in potentially explosive areas.
  • the air gap formed by the thread 18/17 between the housing 11 and the rotating ring 19 by rotating the rotating ring 19 must not be reduced to such an extent that hot gases can escape to the outside in the event of an explosion inside the housing.
  • the two stops in the recess 72 prevent the rotating ring 19 from being pulled out or screwed out so far that the air gap is always sufficient.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

A luminaire has a possibly movable reflector (26) accommodated in a lamp housing (11), and a holder (32) receiving the lamp (35), as well as a switch (37) which can be operated from outside the lamp housing (11), the cap and the switch (37) being mounted on a printed-circuit board (36) inserted into the lamp housing (11). The electrical connections between the switch (37) and the lamp (35) as well as to supply terminals on the lamp housing (11) are produced by printed conductors located on the printed-circuit board. The lamp housing has on its side situated opposite the emission side an opening which can be sealed by a cover (13) and through which the printed-circuit board (36) can be pushed into the interior of the lamp housing (11). <IMAGE>

Description

Die Erfindung betrifft eine Leuchte einem in einem Lampengehäuse untergebrachten, ggf. beweglichen Reflektor und einer die Lampe aufnehmenden Fassung, mit einem außerhalb des Lampengehäuses betätigbaren Schalter, wobei die Fassung an einer in das Lampengehäuse eingesetzten Platte befestigt ist, und wobei das Lampengehäuse auf seiner der Abstrahlseite entgegengesetzt liegenden Seite eine mittels eines Dekkels verschließbare Öffnung aufweist, durch die die Platte ins Innere des Lampengehäuses einschiebbar ist.The invention relates to a lamp housed in a lamp housing, possibly movable reflector and a lamp holder socket, with a switch that can be actuated outside the lamp housing, the socket being fastened to a plate inserted into the lamp housing, and the lamp housing on its The opposite side of the radiation side has an opening that can be closed by means of a cover, through which the plate can be inserted into the interior of the lamp housing.

Eine Leuchte, die mit einem in einem Lampengehäuse untergebrachten Reflektor und einem die Lampe aufnehmenden Sockel und mit einem von außerhalb des Lampengehäuses betätigbaren Schalter zum Einschalten der Lampe versehen ist, ist beispielsweise durch die CEAG-Leuchte, Typ BWE 6.1 bekannt geworden.A lamp which is provided with a reflector accommodated in a lamp housing and a base which receives the lamp and with a switch which can be actuated from outside the lamp housing to switch on the lamp has become known, for example, from the CEAG lamp, type BWE 6.1.

Eine der Leuchte der eingangs genannten Art ist aus der EP 0 301 236 A2 bekannt geworden. Diese Leuchte besitzt ein Leuchtengehäuse, das aus einem Strangpreßprofil abgeschnitten werden kann, wobei das Gehäuse auf einer Seite mit einer transparenten Scheibe und auf der anderen Seite mittels eines Deckels verschlossen werden kann. Innerhalb des Gehäuses an der Innenseite befinden sich Nuten, die in Abstand von 120° gegeneinander versetzt sind. Von der Seite aus, die mittels des Dekkels verschlossen wird, wird eine Chassisebene eingesetzt, an der ein Hitzeschild befestigt ist, der das Leuchtengehäuse axial in zwei Räume unterteilt und auf der Lampenseite einen Sockel mit eingesetzter Lampe trägt. Auf der Chassisebene ist weiterhin ein Vorschaltgerät befestigt, und die Chassisebene ist mittels einer von außen betätigbaren Schraube axial verschiebbar, wobei in besonderen Fällen die Schraube nicht vorhanden ist, dann müssen andere Befestigungselemente für die Chassisebene gefunden werden. Wegen der jeweils um 120° versetzten Nuten an der Innenseite bedarf besonderer Befestigungselemente für die Chassisebene; ein einfaches Einschieben in zwei sich gegeneinanderliegende Nuten erscheint nicht ohne weiteres möglich. Weiterhin ist nicht angegeben, wo sich ein evtl. Schalter befinden könnte. Eine Andeutung, daß der Schalter innerhalb des Leuchtengehäuses vorhanden ist, ist nicht gegeben.One of the luminaires of the type mentioned at the outset has become known from EP 0 301 236 A2. This lamp has a lamp housing that can be cut from an extruded profile, the housing can be closed on one side with a transparent pane and on the other side with a cover. There are grooves inside the housing on the inside, which are offset by 120 ° from each other. From the side that is closed by means of the cover, a chassis level is used, to which a heat shield is attached is that axially divides the luminaire housing into two rooms and carries a base with an inserted lamp on the lamp side. A ballast is also attached to the chassis level, and the chassis level is axially displaceable by means of an externally operable screw, the screw not being present in special cases, then other fastening elements for the chassis level must be found. Because of the 120 ° offset grooves on the inside, special fastening elements are required for the chassis level; a simple insertion into two mutually opposing grooves does not appear to be easily possible. Furthermore, it is not specified where a switch might be located. There is no indication that the switch is inside the luminaire housing.

Aus der FR 2 627 612 ist eine Leuche bekannt geworden, die ein topfförmiges Gehäuse aufweist, welches im Boden eine Öffnung aufweist, in die eine Lampe eingesetzt und darin gehaltert ist. Der Boden ist von außen mittels einer transparenten Abdeckkappe überdeckt. In das Innere des topfförmigen Gehäuses ist eine Leiterplatte eingesetzt, die elektronische Bauteile trägt; die offene Seite ist mittels einer Verschlußplatte abgedeckt und darüberhinaus noch mit einer Verschlußkappe, durch die elektrische Leiter der Leuchte zugeführt werden. Die Lampe wird nicht von der Leiterplatte gehaltert, da die Lampenfassung im Boden des Gehäuses vorhanden ist. Auch ist ein Schalter nicht dargestellt.From FR 2 627 612 a lamp has become known which has a pot-shaped housing which has an opening in the bottom into which a lamp is inserted and held therein. The bottom is covered from the outside by means of a transparent cover cap. In the interior of the pot-shaped housing, a circuit board is used, which carries electronic components; the open side is covered by a closure plate and moreover with a closure cap through which electrical conductors of the lamp are fed. The lamp is not supported by the circuit board because the lamp holder is in the bottom of the housing. A switch is also not shown.

Aufgabe der Erfindung ist es, eine Leuchte der eingangs genannten Art zu schaffen, bei der der Austausch der Lampe und evtl. auch bestimmter elektrischer Komponenten innerhalb des Lampengehäuses vereinfacht ist.The object of the invention is to provide a lamp of the type mentioned, in which the replacement of the lamp and possibly also certain electrical components within the lamp housing is simplified.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Platte als Leiterplatte ausgebildet ist, auf der die Fassung und der von außerhalb betätigbare Schalter unmittelbar befestigt sind, und daß die elektrischen Verbindungen zwischen dem Schalter und der Lampe sowie zu Anschlußklemmen am Lampengehäuse durch auf der Leiterplatte befindliche Leiterbahnen erzeugt sind.This object is achieved in that the plate is designed as a circuit board on which the socket and the switch operable from the outside are directly attached, and that the electrical connections between the switch and the lamp and to terminals on the lamp housing by located on the circuit board Traces are generated.

Auf diese Weise ist der Austausch einer Lampe erheblich vereinfacht. Man muß nur noch den Deckel öffnen und die Leiterplatte herausziehen, um die Lampe auszutauschen.In this way, the replacement of a lamp is considerably simplified. You just have to open the lid and pull out the circuit board to replace the lamp.

Eine vorteilhafte Ausgestaltung der Erfindung kann dahin gehen, daß das Lampengehäuse seitlich zur Abstrahlrichtung eine durch eine transparente Platte dicht verschlossene weitere Öffnung aufweist, durch welche ein auf einer in das Lampengehäuse von hinten einschiebbaren weiteren Leiterplatte angebrachte Anzeigedisplay sichtbar ist.An advantageous embodiment of the invention can be such that the lamp housing has a further opening that is sealed by a transparent plate laterally to the direction of radiation, through which an additional display mounted on a circuit board that can be inserted into the lamp housing from behind is visible.

Eine weitere vorteilhafte Ausgestaltung der Erfindung kann dahin gehen, daß die Kupplung zwischen dem Schalter und einem außerhalb des Lampengehäuses befindlichen Schaltgriffs in ihrer Längsrichtung und quer zur Einschieberichtung der Leiterplatte geteilt ist, dergestalt, daß die Kupplung beim Herausziehen der Leiterplatte nicht erst gelöst werden muß.A further advantageous embodiment of the invention can be such that the coupling between the switch and a switching handle located outside the lamp housing is divided in its longitudinal direction and transversely to the direction of insertion of the circuit board in such a way that the coupling does not have to be released when the circuit board is pulled out.

Zu diesem Zweck befindet sich an dem Schaltgriff ein Fortsatz, der angenähert einen Halbkreisquerschnitt besitzt; dieser Halbkreisquerschnitt wird zu einem Vollkreisquerschnitt ergänzt durch einen Fortsatz am Schalter, wobei die Trennebene zwischen diesen beiden Fortsätzen dergestalt angeordnet ist, daß eine Kraftübertragung vom Handgriff auf den Schalter möglich ist, die beiden Fortsatzabschnitte aber beim Herausziehen der Leiterplatte voneinander getrennt werden können.For this purpose there is an extension on the control handle, which has approximately a semicircular cross section; this semicircular cross section becomes a full circle cross section supplemented by an extension on the switch, the parting plane between these two extensions being arranged such that a power transmission from the handle to the switch is possible, but the two extension sections can be separated from one another when the circuit board is pulled out.

Eine weitere Ausgestaltung der Erfindung kann insbesondere dann, wenn das Lampengehäuse nach vorn in Lichtabstrahlrichtung mittels einer klar transparenten Scheibe verschlossen ist, dahin gehen, daß am Gehäuse eine nach innen vorspringende, gegen die vordere Fläche der Scheibe federnd zum Anliegen gelangende Lippe angeformt ist, die als Dichtlippe für die Abdichtung zwischen dem Gehäuse und dem Reflektorraum dient.A further embodiment of the invention can, in particular, if the lamp housing is closed at the front in the light emission direction by means of a clearly transparent pane, in that a lip is formed on the housing which projects inwards and resiliently abuts against the front surface of the pane serves as a sealing lip for the seal between the housing and the reflector space.

Wenn der Reflektor mit einem Drehring verbunden ist, mit dem der Reflektor in Lichtabstrahlrichtung bezogen auf die Lampe verstellbar ist, um beispielsweise die Abstrahlcharakteristik zu verändern, dann kann diese Dichtlippe an dem Drehring angeformt sein.If the reflector is connected to a rotating ring with which the reflector can be adjusted in relation to the lamp in the direction of light emission, for example in order to change the radiation characteristic, then this sealing lip can be integrally formed on the rotating ring.

Damit eine optimale Dichtung erzielt wird, bildet die an der Innenseite des Gehäuses oder Drehringes angeformte Lippe einen spitzen Winkel mit den Mantellinien der Innenfläche des Gehäuses oder des Drehringes; die radiale Dicke der Lippe wird dann zu ihrem freien Ende hin keilförmig sich verringern. Damit die Dichtlippe auch als Dichtlippe dient und wirkt, wird sie eine gewisse Elastizität besitzen. Ggf. kann der zwischen dem Reflektor, der Dichtlippenkante und dem Gehäuse bzw. dem Drehring gebildete Ringraum, der im Querschnitt dreieckförmig ist, zusätzlich mit einer Dichtmasse gefüllt sein.So that an optimal seal is achieved, the lip formed on the inside of the housing or rotating ring forms an acute angle with the surface lines of the inner surface of the housing or rotating ring; the radial thickness of the lip will then decrease in a wedge shape towards its free end. So that the sealing lip also serves and acts as a sealing lip, it will have a certain elasticity. Possibly. The annular space formed between the reflector, the sealing lip edge and the housing or the rotating ring, which is triangular in cross section, can additionally be filled with a sealing compound.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Based on the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements of the invention are to be explained and described in more detail.

Es zeigen:

Figur 1
eine Längsschnittansicht durch eine erfindungsgemäße Leuchte,
Figur 2
eine Schnittansicht gemäß der Schnittlinie II-II der Figur 1 und
Figur 3
eine Schnittansicht gemäß der Schnittlinie III-III der Figur 1.
Show it:
Figure 1
2 shows a longitudinal sectional view through a lamp according to the invention,
Figure 2
a sectional view along the section line II-II of Figure 1 and
Figure 3
2 shows a sectional view along the section line III-III of FIG. 1.

Es sei nun Bezug genommen auf die Figur 1.Reference is now made to FIG. 1.

Eine Lampe 10 besitzt ein Lampengehäuse 11, an dessen in der Zeichnung oben dargestelltem Abschnitt ein Handgriff 12 anschließt. Das Gehäuse 11 besitzt in der vorliegenden Form einen kreisförmigen Querschnitt und ist an seinem einen, in Lichtabstrahlrichtung hinteren Stirnende mittels eines Deckels 13 verschlossen, welcher einen Napfrand 14 aufweist, der von dem Gehäuse 11 mit einem vorspringenden Abschnitt 15 mit vergrößertem Innendurchmesser und gleichem Außendurchmesser unter Zwischenfügung einer Dichtung 16 umfaßt ist.A lamp 10 has a lamp housing 11, to whose section shown in the drawing above a handle 12 connects. The housing 11 in the present form has a circular cross section and is closed at its one end, which is at the rear in the light emission direction, by means of a cover 13 which has a cup edge 14 which extends from the housing 11 with a projecting section 15 with an enlarged inside diameter and the same outside diameter below Interposition of a seal 16 is included.

Das andere vordere Stirnende besitzt einen Innengewindeabschnitt 17, in den ein Außengewindeabschnitt 18 eines Drehringes 19 eingeschraubt ist, der selbst wiederum ein Innengewinde 20 im Bereich des Außengewindeabschnittes 18 aufweist.The other front end has an internal thread section 17, into which an external thread section 18 of a rotating ring 19 is screwed, which in turn has an internal thread 20 in the area of the external thread section 18.

Der Drehring 11 besitzt an seinem dem Außengewindeabschnitt 18 entgegengesetzten, stirnseitigen Ende eine nach innen vorspringende Lippe 21, die umlaufend angeordnet ist und, unter einem Winkel alpha zur Mantellinie des Drehringes geneigt, in Richtung zum Innengewinde 20 vorspringt. Dadurch bildet die Lippe 21 einen federnden Absatz 22, gegen den eine vordere Glasscheibe 23 anliegt, die zusammen mit einer Zusatzscheibe 24, die eine zentrale, lupenartige Verdickung 25 aufweist, eine Art von Verbundglasscheiben bildet. An die Glasscheiben 23/24 schließt sich ein Reflektor 26 an, der an seinem freien Ende mit großem Durchmesser einen zylinderförmigen Fortsatz 27 aufweist, dessen Außendurchmesser dem Innendurchmesser des Drehringes, der dem Innendurchmesser des Gewindeabschnittes 20 entspricht, angepaßt ist. Der Übergang von dem zylinderförmigen Fortsatz 27 zu dem paraboloidförmigen Reflektorabschnitt 26a besitzt auf seiner Außenfläche eine radial verlaufende Stufung 28, gegen die ein Gewindering 29 mit einem Außengewinde anliegt, wenn der Gewindering 29 in das Innengewinde 20 eingeschraubt ist. Zwecks besseren Festschraubens besitzt der Gewindering 29 mindestens zwei sich gegenüberliegende, nach innen offene Nuten 30.The rotary ring 11 has at its front end opposite the external thread section 18 an inwardly projecting lip 21, which is arranged all around and which, inclined at an angle alpha to the surface line of the rotary ring, projects in the direction of the internal thread 20. As a result, the lip 21 forms a resilient shoulder 22, against which lies a front glass pane 23 which, together with an additional pane 24, which has a central, magnifying glass-like thickening 25, forms a type of laminated glass pane. The glass panes 23/24 are followed by a reflector 26, which has a cylindrical extension 27 at its free end with a large diameter, the outside diameter of which is adapted to the inside diameter of the rotating ring, which corresponds to the inside diameter of the threaded section 20. The transition from the cylindrical extension 27 to the paraboloidal reflector section 26a has on its outer surface a radially extending step 28, against which a threaded ring 29 with an external thread rests when the threaded ring 29 is screwed into the internal thread 20. For the purpose of better screwing down, the threaded ring 29 has at least two mutually opposite, inwardly open grooves 30.

Der Reflektor 26, der am Drehring 19 befestigt ist, umgibt einen Innenreflektor 31, der einen Stutzen 32 aufweist, der auf der entgegengesetzten Seite des Reflektorbereiches 33 von dieser aus vorspringt und dabei eine Zylinderform aufweist, deren Innendurchmesser dem Außendurchmesser des Sockels 34 einer Lampe 35 angepaßt ist. Der Innenreflektor mit dem Stutzen 32 ist auf einer Leiterplatte 36, siehe Figur 3, befestigt, an der auch ein Schalter 37 befestigt ist, der einen radial nach außen in Richtung zum Handgriff 12 weisenden, vorspringenden Schaltwellenabschnitt 38 aufweist, der mit einem parallel dazu verlaufenden, von einem Schaltgriff 40 nach innen vorspringenden Schaltwellenabschnitt 39 an diesem Schaltgriff 40 angekuppelt ist. Der Schaltgriff 40 ist in einer Vertiefung 41 drehbar gelagert, wobei der Boden der Vertiefung 41 mit einem Vorsprung 42 in eine erste Nut 43 und ein zylinderförmiger Vorsprung 44 in eine Nut 45 eingreift, und wobei der Schaltwellenabschnitt 39 unter Zwischenfügung einer Dichtung 46 eine Öffnung 47 im Gehäuse 11 durchgreift.The reflector 26, which is fastened to the rotary ring 19, surrounds an inner reflector 31, which has a socket 32 which projects from the opposite side of the reflector region 33 and has a cylindrical shape, the inner diameter of which corresponds to the outer diameter of the base 34 of a lamp 35 is adjusted. The inner reflector with the socket 32 is fastened on a printed circuit board 36, see FIG. 3, to which a switch 37 is also fastened, which switches one radially outwards Has a projecting shift shaft section 38 pointing towards the handle 12, which is coupled to this shift handle 40 with a shift shaft section 39 that extends inwards from a shift handle 40 and runs parallel to it. The shift handle 40 is rotatably mounted in a depression 41, the bottom of the depression 41 engaging with a projection 42 in a first groove 43 and a cylindrical projection 44 in a groove 45, and the shift shaft section 39, with the interposition of a seal 46, an opening 47 engages in the housing 11.

Die Figur 1 zeigt, daß zwei Varianten zum Einsetzen von Nebenlampen 50 und 51 vorgesehen sein können. Bei der ersten, oberhalb der Schnittlinie II-II gezeichneten Variante (siehe auch Figur 3) besitzt der Innenreflektor 33 einen parallel zum Stutzen 32 verlaufenden Nebenstutzen 52, in dem die Nebenlampe 50 aufgenommen ist; bei der zweiten Variante (in Figur 3 nicht dargestellt) ist die Nebenlampe 51 in einen Nebenreflektor 53 eingesetzt, der eine ellipsoide Kontur aufweist; das von dem Nebenreflektor 53 reflektierte Licht wird durch eine Öffnung 44 im Innenreflektor 33 bzw. im Reflektorabschnitt 33 hindurch nach außen abgestrahlt.FIG. 1 shows that two variants for inserting secondary lamps 50 and 51 can be provided. In the first variant, drawn above the section line II-II (see also FIG. 3), the inner reflector 33 has an auxiliary connector 52 which runs parallel to the connector 32 and in which the auxiliary lamp 50 is received; in the second variant (not shown in FIG. 3), the secondary lamp 51 is inserted into a secondary reflector 53 which has an ellipsoidal contour; the light reflected by the secondary reflector 53 is emitted to the outside through an opening 44 in the inner reflector 33 or in the reflector section 33.

Aus Figur 2 ist ersichtlich, daß der Stutzen 32 an der Leiterplatte 36 mittels Nieten 55, 56 und der Schalter 37 auf nicht näher dargestellte Weise an der Leiterplatte 36 befestigt sind. Zur Bildung einer elektrisch-leitenden Verbindung zwischen der Lampe 35 und weiteren, nicht näher dargestellten Leitungsanschlüssen ist auf der Seite der Leiterplatte 36, auf der sich der Stutzen 32 befindet, eine L-förmige Kontaktdruckfeder 57 befestigt, deren einer Schenkel parallel zur Leiterplatte 36 und deren anderer Schenkel in Form eines federnden Kontaktelementes senkrecht dazu verläuft und mit einem der Kontaktstücke der Lampe 35 in Kontaktierung gelangt. Die Leiterbahnen auf der Leiterplatte verbinden dann das federnde Kontaktelement mit dem einen Kontaktstück des Schalters 37.From Figure 2 it can be seen that the connector 32 are attached to the circuit board 36 by means of rivets 55, 56 and the switch 37 in a manner not shown on the circuit board 36. To form an electrically conductive connection between the lamp 35 and further line connections, not shown, an L-shaped contact pressure spring 57 is fastened on the side of the circuit board 36 on which the connector 32 is located, one leg of which is parallel to the circuit board 36 and their other Leg in the form of a resilient contact element extends perpendicular to it and comes into contact with one of the contact pieces of the lamp 35. The conductor tracks on the printed circuit board then connect the resilient contact element to the one contact piece of the switch 37.

Zum Einschieben der Leiterplatte 36 besitzt das Gehäuse 11 zwei sich gegenüberliegende Rillen 58 und 59, die die Leiterplatte 36 aufnehmen und führen.To insert the circuit board 36, the housing 11 has two mutually opposite grooves 58 and 59 which receive and guide the circuit board 36.

Neben den Rillen 58 und 59 sind weitere Rillen 60, 60a und 61, 61a bzw. 62 und 63 vorgesehen, in die weitere Leiterplatten 64, 64a und 65 eingesetzt werden können.In addition to the grooves 58 and 59, further grooves 60, 60a and 61, 61a or 62 and 63 are provided, into which further printed circuit boards 64, 64a and 65 can be inserted.

An der Leiterplatte 65 ist ein Träger 66 befestigt, an dem ein napfförmiger Behälter 67 zur Aufnahme eines Elektronikdisplays 68 befestigt ist; in einem Gehäusevorsprung, der von dem Gehäuse 11 nach innen vorspringt, ist mittels eines Dichtelementes 70 eine Scheibe 71 eingesetzt, durch die das Display 68 sichtbar ist. Die Anordnung derartiger Fenster ist an sich bekannt, insbesondere auch ist bekannt, daß bei explosionsgeschützten Leuchten derartige Fenster abgedichtet sein müssen, so daß hier nicht näher darauf eingegangen werden soll.A support 66 is fastened to the printed circuit board 65, to which a cup-shaped container 67 for receiving an electronic display 68 is fastened; in a housing projection which projects inwards from the housing 11, a disk 71 is inserted by means of a sealing element 70, through which the display 68 is visible. The arrangement of such windows is known per se, and in particular it is also known that windows of this type must be sealed in explosion-protected lamps, so that this will not be discussed in more detail here.

Für die vorliegende Erfindung ist lediglich erforderlich, anzugeben, daß eine Scheibe 71 vorgesehen ist, durch die ein Anzeigedisplay 68 sichtbar ist.For the present invention, it is only necessary to indicate that a pane 71 is provided, through which a display 68 is visible.

Die Lippe 21 ist aufgrund ihrer sich geringfügig verjüngenden Kontur federnd ausgebildet, so daß die Lippe 21 bei entsprechender Vorspannkraft, die durch den Gewindering 29 erzeugt wird, als Dichtung dienen kann. Zusätzlich könnte in den V-förmigen oder im Querschnitt dreieckförmigen Abschnitt 21a, den die Dichtlippe 21 aufgrund ihrer Form mit dem übrigen Drehring-Bereich und der Scheibe 23 bildet, mit einer Dichtmasse (21b) ausgegossen sein.The lip 21 is designed to be resilient due to its slightly tapering contour, so that the lip 21 can serve as a seal with a corresponding preload force that is generated by the threaded ring 29. In addition, the V-shaped or triangular cross-section could be used Section 21a, which the sealing lip 21 forms on account of its shape with the rest of the rotating ring region and the disk 23, can be poured out with a sealing compound (21b).

Die beiden Schaltwellenabschnitte 38 und 39 sind so ausgebildet, daß im montierten Zustand, wie in Figur 1 dargestellt, beide Schaltwellenabschnitte miteinander gekuppelt sind, wogegen im ausgeschalteten Zustand des Schalters eine leichte Demontage, d. h. ein leichtes Herausziehen der Leiterplatte 36 mit dem Schalter 37 und dem Innenreflektor 33 mit dem Stutzen 32 möglich ist.The two switching shaft sections 38 and 39 are designed such that, in the assembled state, as shown in FIG. 1, both switching shaft sections are coupled to one another, whereas, when the switch is switched off, easy disassembly, i. H. easy removal of the circuit board 36 with the switch 37 and the internal reflector 33 with the socket 32 is possible.

Der Ring 19 besitzt an seinem Außenumfang eine am Umfang verlaufende Vertiefung 72, in die eine durch das Gehäuse 11 hindurchgeschraubte Schraube 73 eingreift; wenn der Drehring 19 und damit der Reflektor 26 verdreht wird, was zu einer Lageveränderung des Brennpunktes des Reflektors führt, dann schlägt die Schraube 73 an die in Umfangsrichtung in Abstand zueinander angeordneten Enden der Vertiefung 72 an, wodurch ein weiteres Verdrehen des Drehringes unmöglich wird. Daß die Schraube 73 und die Vertiefung 72 vorgesehen sein müssen, liegt daran, daß die Leuchte in explosionsgefährdeten Bereichen eingesetzt werden soll. Zu diesen Zwecken darf beispielsweise der durch das Gewinde 18/17 gebildete Luftspalt zwischen dem Gehäuse 11 und dem Drehring 19 durch Verdrehen des Drehrings 19 nicht so weit verkleinert werden, daß bei einer Explosion im Inneren des Gehäuses heiße Gase nach außen treten können. Die beiden Anschläge in der Vertiefung 72 verhindern, daß der Drehring 19 nur so weit herausgezogen bzw. herausgedreht werden kann, daß der Luftspalt immer ausreichend ist.The ring 19 has on its outer circumference a circumferential recess 72 into which a screw 73 screwed through the housing 11 engages; if the rotating ring 19 and thus the reflector 26 is rotated, which leads to a change in the position of the focal point of the reflector, then the screw 73 strikes the circumferentially spaced ends of the recess 72, making further rotation of the rotating ring impossible. That the screw 73 and the recess 72 must be provided is due to the fact that the lamp is to be used in potentially explosive areas. For these purposes, for example, the air gap formed by the thread 18/17 between the housing 11 and the rotating ring 19 by rotating the rotating ring 19 must not be reduced to such an extent that hot gases can escape to the outside in the event of an explosion inside the housing. The two stops in the recess 72 prevent the rotating ring 19 from being pulled out or screwed out so far that the air gap is always sufficient.

Claims (9)

  1. Light having a possibly movable reflector (26) accommodated in a lamp housing (11) and a socket (32) receiving the lamp (35), having a switch (37) operable outside the lamp housing (11), wherein the socket (32) is fastened on a plate inserted into the lamp housing (11), and wherein the lamp housing (11) on its side located opposite the beam side has an opening which can be closed by means of a cover (13) and through which the plate can be pushed into the interior of the lamp housing (11) characterised in that the plate (36) is constructed as a printed circuit board on which the socket and the switch (37) operable from outside are directly fastened and that the electric connections between the switch (37) and the lamp (35) as well as to terminal connections on the lamp housing (11) are produced by means of conductor tracks located on the printed circuit board (36).
  2. Light according to claim 1, characterised in that to the side with respect to the direction of the beam, the lamp housing (11) has an opening closed tight by a transparent plate (disc (71)) through which a display panel introduced on a further printed circuit board which can be pushed into the lamp housing (11) from the rear is visible.
  3. Light according to claim 1 or 2, characterised in that at least one further printed circuit board (64, 64a, 65) can be pushed into the lamp housing (11) from the rear.
  4. Light according to one of the preceding claims, characterised in that the coupling between the switch (37) and a switch lever (40) located outside the lamp housing (11) is divided in the longitudinal direction with respect to the coupling - in the radial direction with reference to the lamp housing (11) - and transversely to the direction in which the printed circuit board (36) is pushed in, in such a way that the coupling is closed in the pushed-in state of the printed circuit board (36).
  5. Light according to one of the preceding claims, characterised in that the lamp housing is closed towards the front in the direction of the light beam by means of a clear transparent disk (23, 24) and on the housing (11) an inwardly projecting lip (21) coming to abutment in sprung manner against the front surface of the disk is moulded on which serves as a sealing lip for the seal between the housing (11) and a reflector space determined by the reflector.
  6. Light according to claim 5, characterised in that the sealing lip (21) is moulded on a turning ring (19) with which the reflector (26) can be displaced with reference to the lamp (35) in the direction of the light beam.
  7. Light according to claim 5 or 6, characterised in that the lip (21) moulded on the inside of the housing (11) or turning ring (19) forms an acute angle (alpha) with the surface lines of the inner surface of the housing (11) or turning ring (19), wherein the radial thickness of the lip (21) reduces in wedge-shaped manner towards its free end.
  8. Light according to claim 7, characterised in that the lip (21) exhibits a certain elasticity.
  9. Light according to claim 7, characterised in that the sealing lip (21) of the inner surface of the housing (11) of the turning ring (19) and of the disk (23, 24) forming the annular space (21a) is filled with a sealing compound (21b).
EP93102109A 1992-02-17 1993-02-11 Lamp Expired - Lifetime EP0556710B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4204669A DE4204669A1 (en) 1992-02-17 1992-02-17 LAMP
DE4204669 1992-02-17

Publications (3)

Publication Number Publication Date
EP0556710A2 EP0556710A2 (en) 1993-08-25
EP0556710A3 EP0556710A3 (en) 1994-05-18
EP0556710B1 true EP0556710B1 (en) 1997-07-16

Family

ID=6451875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93102109A Expired - Lifetime EP0556710B1 (en) 1992-02-17 1993-02-11 Lamp

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Country Link
EP (1) EP0556710B1 (en)
AT (1) ATE155566T1 (en)
DE (2) DE4204669A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19803880C2 (en) 1998-01-31 2003-09-18 Waldmann Gmbh & Co Herbert Halogen lamp with light outlet panel
DE102011103491B4 (en) * 2011-06-03 2014-10-30 Cooper Crouse-Hinds Gmbh Cover and luminaire with such a cover

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1539565A1 (en) * 1966-12-16 1969-11-06 Siemens Ag Luminaire with a hinge-like connection between the upper part of the housing and the lower part of the housing
US4309745A (en) * 1978-12-26 1982-01-05 Zelina Jr John H Reflector
DE3011094C2 (en) * 1980-03-22 1984-10-04 Robert Bosch Gmbh, 7000 Stuttgart Lamp, in particular battery-powered hand lamp
DE3011095C2 (en) * 1980-03-22 1984-11-22 Robert Bosch Gmbh, 7000 Stuttgart Battery-powered lights, in particular hand lights
US4489367A (en) * 1983-09-16 1984-12-18 Herron Charles R Headlight permissible for use in explosive atmospheres
DD263105A1 (en) * 1987-07-27 1988-12-21 Peossnecker Aussenleuchten Veb SPRAY WATER-PROOF SPOTLIGHT
FR2627612B1 (en) * 1988-02-24 1994-06-03 Telemecanique Electrique LIGHT TUBE OPTICAL SIGNALING APPARATUS
IT216965Z2 (en) * 1989-03-10 1991-10-21 Itw Fastex Italia Spa LAMPHOLDER FOR HOUSEHOLD APPLIANCES
DE8908556U1 (en) * 1989-07-13 1989-09-07 Schekulin, Dirk, 73230 Kirchheim Underwater hand lamp
DE8912632U1 (en) * 1989-10-25 1989-12-21 Herbert Waldmann GmbH & Co, 7730 Villingen-Schwenningen Luminaire with point-shaped halogen lamp

Also Published As

Publication number Publication date
EP0556710A3 (en) 1994-05-18
DE59306902D1 (en) 1997-08-21
ATE155566T1 (en) 1997-08-15
EP0556710A2 (en) 1993-08-25
DE4204669A1 (en) 1993-08-19

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