EP0139075B1 - Ensemble projecteur - Google Patents

Ensemble projecteur Download PDF

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Publication number
EP0139075B1
EP0139075B1 EP84104049A EP84104049A EP0139075B1 EP 0139075 B1 EP0139075 B1 EP 0139075B1 EP 84104049 A EP84104049 A EP 84104049A EP 84104049 A EP84104049 A EP 84104049A EP 0139075 B1 EP0139075 B1 EP 0139075B1
Authority
EP
European Patent Office
Prior art keywords
fastening means
socket
lightning unit
casing
lightning
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
Application number
EP84104049A
Other languages
German (de)
English (en)
Other versions
EP0139075A1 (fr
Inventor
Martin Thadäus Schydlo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84104049T priority Critical patent/ATE30074T1/de
Publication of EP0139075A1 publication Critical patent/EP0139075A1/fr
Application granted granted Critical
Publication of EP0139075B1 publication Critical patent/EP0139075B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/401—Lighting for industrial, commercial, recreational or military use for swimming pools

Definitions

  • the invention relates to a headlight unit with a housing which is sealed by a glass and in which a lamp which is fastened to a base is arranged.
  • Such a headlight unit is known from FR-A-1 582188.
  • the unit is relatively large, since sufficient heat dissipation must be ensured within the headlight housing.
  • the known headlight unit does not allow adjustment of the light cone, as is desired, for example, for headlights for swimming pools.
  • Both lamps that are designed for the usual voltage of 220 volts and low-voltage lamps that work in the voltage range between 24 and 42 V are used for headlights. All of these lamps are filament lamps.
  • the known halogen lamps have a significantly higher light output in relation to their size, they cannot be used for headlights of a smaller design and in particular for headlights in which the heat generated cannot be dissipated sufficiently, since the operating temperature then becomes too high . This means an excessive reduction in lamp life.
  • the headlight known from DE-A 1 597 978 does not show, since it concerns the lamp as such, how the heat dissipation or an adjustability of the light beam can be achieved.
  • the invention has for its object to provide a headlight unit that is characterized by a very strong light output and a variability of the light emission even with a relatively small design.
  • the lamp is a halogen lamp with a reflector coaxially surrounding the lamp and a holder which is coaxial with the base and is sealingly connected to the housing, the base and the holder having mutually facing end faces which are not connected to the headlight axis right-angled inclined surfaces are formed, and the holder and the base can be locked in different relative rotational positions to each other.
  • the inclined surfaces have such a relative rotational position to one another that their inclination with respect to a precisely radial reference plane is canceled. With increasing rotation from this position, these inclinations add up continuously until a rotation angle of 180 ° is reached.
  • the inclination of the light beam with respect to the longitudinal axis of the headlamp is then just as large as the sum of the angles of inclination of the two inclined surfaces.
  • This angle of inclination will expediently be chosen to be of the same size.
  • the size of an angle of inclination can be, for example, between 5 ° and 10 °. Since only little space is required for such a construction, it can also be used for a headlight of the type proposed here.
  • the holder is a pot-shaped holder with a bottom forming the inclined surface.
  • the base is inserted into the cup-shaped holder in the required torsional stiffness.
  • the base has a polygonal cross section and that the holder is provided in a circular arrangement with a number of stops between which the corner regions of the base engage. It will depend on the number of stops at which arc intervals the base can be locked.
  • the rectangular shape is particularly suitable for the base.
  • the stops can also be formed on the side wall of the cup-shaped holder. However, it is particularly advantageous if the stops are pins protruding from the bottom of the holder.
  • the holder has a cable feed-through from the outside to the base, the seal between the housing and the headlight glass or holder and the seal between the holder and the cable feed-through being designed to be gas-tight.
  • the operating temperature in the housing is initially up to approximately 230 ° C. At this temperature, the halogen lamp would have a short lifespan. However, a vacuum is created during the first switch-on time due to the influence of heat in the headlight housing. If this is maintained, the operating temperature drops to approximately 180 ° C. This temperature is already below the average operating temperature of a halogen lamp. It is therefore even possible to increase the average lifespan by at least 50% and in many cases significantly more.
  • the housing of the headlamp can therefore have relatively small dimensions. This even facilitates the gas-tight seal. It is possible to have a headlight housing of, for example, only 10 cm knife with a halogen lamp, whose power consumption is 75 watts and which has the luminosity of a 300 watt lamp.
  • the special sealing of the headlamp housing also in the area of the cable passage also enables the headlamp to be used as an underwater headlamp, which can be regarded as pressure-resistant to a depth of 50 meters and more. Since a halogen lamp is sufficient here, whose operating voltage is only 12 V, there are no safety problems when using the headlight as an underwater headlight or as an exterior headlight.
  • the small design is of course also advantageous insofar as the installation area provided in each case only has to be cut out to a correspondingly small extent.
  • the housing of the headlamp from a correspondingly temperature-resistant and solid plastic.
  • the housing consists of metallic material, as is also known per se for other headlight housings, but if the cable also has an additional conductor which is connected to the housing.
  • this additional cable does not of course have to serve as a ground cable.
  • the invention has recognized that the additional conductor is well suited for achieving additional heat dissipation from the housing. Another advantage is that the heat dissipated by the cable prevents the cable from becoming damp inside, which is important when the headlight is exposed to external moisture.
  • the insulation of the cable and its conductors is removed at least in the inner region of the cable bushing and if the seal consists of a casting compound which is in direct contact with the metallic conductors of the cable.
  • the glass pane covering the front area of the headlight has a conically tapering area on the inside, and that this area lies against the ring seal, the outer diameter of which is larger than the outer diameter of the glass pane.
  • the conically tapering area causes the pressing force to be broken down into an axial and a radial direction. This achieves a particularly effective seal, while at the same time ensuring that the glass pane is centered automatically in the ring seal. This in turn makes assembly easier.
  • the glass pane can be a parabolic glass, but in such a way that an outer annular surface of the glass pane forms a support surface lying in a radial plane, on which a holder engages from the outside.
  • the parabolic glass causes the light exit angle to be enlarged by several degrees, so that despite the relatively small headlight diameter, there is a relatively wide light exit.
  • the outer ring surface enables the holder to lie sufficiently firmly against the glass pane without causing impermissibly large surface pressures.
  • the housing and the reflector of a headlight are different components.
  • the invention proposes that the inner wall of the housing is designed as a reflector in terms of surface quality and shape. By removing a separate reflector located in the housing, the reflector integrated in the housing can be brought into effect and thus the light emission can be changed. On the other hand, the reflector integrated with the housing can be provided as the only reflector. In this way, the dimensions can be reduced even further if necessary.
  • a headlamp designed according to the invention can also be used in existing fittings on swimming pools, which can optionally also be provided with water or air nozzles or can be used to install operating elements.
  • the installation of the headlamp is particularly simple, to which a cylindrical shape of the headlamp housing and an external thread located thereon contribute.
  • installation in a foil pool is also possible in a simple manner, because then only a lock nut needs to be screwed onto the external thread of the housing.
  • the recessed spotlight has a cylindrical housing 10 which is provided with an external thread 11. There is an annular flange 12 on the front of the housing 10. A headlight glass 13 is inserted therein, which is designed as a parabolic glass, but which has an outer annular surface on the front, which lies in a radial plane and which is designated by the reference number 29 . This is attacked by a screw flange 14, which presses the headlamp lens 13 against an annular seal 15. The outside diameter the ring seal 15 is larger than the outer diameter of the headlamp lens 13, which has a conically tapering area on its underside and abuts the ring seal 15 with this area.
  • the ring seal 15 By tightening the screw flange 14, the ring seal 15 is stressed in the axial and radial directions, the headlamp lens 13 being automatically adjusted.
  • the ring seal 15 therefore lies on the cylindrical inner wall of the ring flange 12 as well as on the radial ring shoulder 16 of the same.
  • a lighting unit consisting of a halogen lamp 17 and a reflector 18 has two contact pins 19 which can be inserted into corresponding sockets of a base 20.
  • the base 20 has the shape of a rectangular plate, the corners of which are rounded.
  • the base 20 On its side facing away from the lighting unit, the base 20 has an inclined surface 21. This forms an acute angle of approximately 5 ° with a plane radial to the headlight axis 22.
  • a cylindrical holder 23 is cup-shaped and provided with an external thread 24 so that it can be screwed into a corresponding internal thread of the housing 10.
  • the inner region of the holder 23 receives the base 20 and circularly arranged pins 30 which protrude vertically from the bottom of the holder 23.
  • the size of the base 20 is matched to the radius of the circular shape and to the distance between the pins 30 so that the corner regions of the base 20 can engage between two adjacent pins 30, so that the base 20 is secured against rotation.
  • a total of 16 pins 20 are provided. This results in an arc distance of 22.5 ° between two adjacent pins 30.
  • One of these pins 30 has a much larger diameter, so that this pin 30 is able to prevent rotation of the base 20 by more than 180 °.
  • the bottom of the pot-shaped holder 23 forms a further inclined surface 25, whose angle of inclination with respect to the aforementioned radial plane is the same as the angle of inclination of the inclined surface 21.
  • the base 20 can be inclined up to a maximum of 10 °.
  • the bottom of the holder 23 merges into a connecting piece 26 which is pierced and is used for inserting a cable 27.
  • the cable 27 has three conductors, two of which are connected to the sockets arranged in the base 20.
  • a third conductor 31 is connected to the holder 23, which, like the housing 10, is made of metallic material.
  • the conductor 31 serves to dissipate the accumulating heat. Not only the conductor 31, but also the two other conductors are freed from the insulation in the upper region of the connecting piece 26. Sealing is carried out with the aid of a casting compound 32, which also comes into contact with the stripped conductors and firmly surrounds them.
  • the inner wall of the housing 10 has a conical shape and can also serve as a reflector if a reflector 18 is not present.
  • the corresponding areas of the inner wall of the housing 10 can be polished or provided with a suitable coating.
  • the holder 23 is screwed into the housing 10 with the base 20. Subsequently, the base 20 is brought into the desired relative rotational position with respect to the holder 23. In this position, the base 20 remains locked with the aid of the pins 30.
  • the lamp unit consisting of lamp 17 and reflector 18 is inserted into the housing 10 through the still open front side of the housing 10, this lamp unit having assumed the desired position after the insertion of the contact pins 19 into the associated sockets of the base 20.
  • the interior of the housing 10 is due to the special design of the sealing areas between the headlight glass 13 and housing 10 and at the connection piece 26 sufficiently gas-tight after the headlight glass 13 is inserted and the screw flange 14 are screwed tight.
  • the latter has arcuate cutouts 28 on its inner edge, into which the fingers can engage when the screw flange 14 is turned.
  • the external thread 11 on the housing 10 enables the same to be screwed into fittings which are embedded in the wall of a swimming pool or in another environment.
  • the pool wall is located between the ring flange 12 and a nut screwed onto the external thread 11.
  • the installation of the headlight in any wall or bracket is possible in a corresponding manner.
  • the holder 23 Without affecting the seal between the housing 10 and the holder, it is also possible to unscrew the holder 23 a little to the rear and thus to pull the lamp 17 and the reflector 18 correspondingly more into the housing 10. Securing in the desired position can be done by an additional nut that is screwed onto the external thread 24. This allows the width of the illuminated field to be reduced.
  • the lamp 17 can also be replaced from the rear, provided that it does not form a structural unit with the reflector 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Claims (10)

1. Projecteur, avec un boîtier hermétiquement recouvert par un verre et dans lequel est disposée une lampe fixée sur une douille, caractérisé en ce que la lampe est une lampe à halogène avec un réflecteur entourant coaxialement l'ampoule et un support (23) coaxial à la douille (20) et assemblé hermétiquement au boîtier (10), la douille (20) et le support (23) présentant des côtés frontaux tournés l'un vers l'autre, qui sont configurés sous la forme de faces obliques (21, 25) formant un angle différent de 90° avec l'axe (22) du projecteur, et en ce que le support (23) et la douille (20) peuvent être bloqués à différentes positions de rotation relative.
2. Projecteur selon la revendication 1, caractérisé en ce que le support (23) est un support en forme de pot avec un fond constituant la face oblique (25)..
3. Projecteur selon la revendication 1 ou 2, caractérisé en ce que la douille (20) a une section polygonale, et en ce que le support (23) est muni d'un certain nombre de butées (30) disposées en anneau de cercle, entre lesquelles s'engagent les zones de coins de la douille (20).
4. Projecteur selon la revendication 3, caractérisé en ce que les butées sont des doigts (30) partant en saillie vers le haut depuis le fond du support (23).
5. Projecteur selon une des revendications 1 à 4, caractérisé en ce que le support (23) présente un passe-câble menant de l'extérieur à la douille (20), le joint d'étanchéité entre le boîtier (10) et le verre (13) du projecteur ou selon le cas le support (23) ainsi que le joint d'étanchéité entre le support (23) et le passe-câble étant prévus étanches aux gaz afin d'établir un vide.
6. Projecteur selon une des revendications 1 à 5, caractérisé en ce que le boîtier (10) est réalisé en un matériau métallique, et en ce que le câble (27) relié à la douille (20) présente un conducteur (31) supplémentaire qui est relié au boîtier (10).
7. Projecteur selon une des revendications 1 à 6, caractérisé en ce que la gaine isolante du câble (27) et de ses conducteurs (31) est supprimée au moins dans la région intérieure du passe-câble (26), et en ce que le joint d'étanchéité consiste en une masse de remplissage (32) qui s'appuie directement contre les conducteurs métalliques (31) du câble (27).
8. Projecteur selon une des revendications 1 à 7, caractérisé en ce que le verre (13) du projecteur présente sur son côté intérieur une région se rétrécissant coniquement, et en ce que cette région vient s'appuyer contre un joint d'étanchéité annulaire (15) dont le diamètre extérieur est supérieur au diamètre extérieur du verre (13) du projecteur.
9. Projecteur selon une des revendications 1 à 8, caractérisé en ce que le verre (13) du projecteur est un verre parabolique, dont une surface annulaire extérieure (29) constitue une surface d'appui située. dans un plan radial, contre laquelle s'appuie de l'extérieur une bride vissée (14).
10. Projecteur selon une des revendications 1 à 9, caractérisé en ce que la paroi intérieure du boîtier (10) est conçue comme un réflecteur en matière de qualité de surface et de forme.
EP84104049A 1983-10-25 1984-04-11 Ensemble projecteur Expired EP0139075B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104049T ATE30074T1 (de) 1983-10-25 1984-04-11 Scheinwerfereinheit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833338628 DE3338628A1 (de) 1983-10-25 1983-10-25 Einbauscheinwerfer
DE3338628 1983-10-25

Publications (2)

Publication Number Publication Date
EP0139075A1 EP0139075A1 (fr) 1985-05-02
EP0139075B1 true EP0139075B1 (fr) 1987-09-30

Family

ID=6212626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104049A Expired EP0139075B1 (fr) 1983-10-25 1984-04-11 Ensemble projecteur

Country Status (3)

Country Link
EP (1) EP0139075B1 (fr)
AT (1) ATE30074T1 (fr)
DE (2) DE3338628A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528469A1 (de) * 1985-08-08 1987-02-19 Ceag Licht & Strom Leuchte
DE3542784A1 (de) * 1985-12-04 1987-06-11 Hella Kg Hueck & Co Scheinwerfer fuer kraftfahrzeuge
US5176441A (en) * 1989-09-22 1993-01-05 Tungsram Reszvenytarsasag Lamp with a reflector envelope
CN104056295B (zh) * 2014-05-23 2016-08-24 上海冬翼光电有限公司 防尘防水表面杀菌设备、防尘防水密闭设备及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1788509A (en) * 1929-01-31 1931-01-13 Everson Filter Company Submarine lighting fixture
US2166393A (en) * 1937-04-08 1939-07-18 Crouse Hinds Co Lighting unit
FR1502670A (fr) * 1966-06-06 1967-11-24 Cibie Projecteurs Perfectionnements aux projecteurs étanches
FR1582188A (fr) * 1968-07-17 1969-09-26
DE2041725A1 (de) * 1970-08-22 1972-02-24 Optric Glarus Ag Unterwasserscheinwerfer
US3845291A (en) * 1974-02-08 1974-10-29 Titan Tool And Die Co Inc Water powered swimming pool light
DE7913297U1 (de) * 1979-05-08 1980-08-07 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen Ortsveraenderliche leuchte zur verwendung im freien
DE3004204A1 (de) * 1980-02-06 1981-08-13 Karl-Friedrich Schlack Springbrunnenbau-Betonsteinwerk, 4930 Detmold Wasserdichter scheinwerfer

Also Published As

Publication number Publication date
EP0139075A1 (fr) 1985-05-02
DE3338628A1 (de) 1985-05-15
DE3466588D1 (en) 1987-11-05
ATE30074T1 (de) 1987-10-15

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