EP0621742A2 - Housing for a lamp ballast - Google Patents

Housing for a lamp ballast Download PDF

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Publication number
EP0621742A2
EP0621742A2 EP94105615A EP94105615A EP0621742A2 EP 0621742 A2 EP0621742 A2 EP 0621742A2 EP 94105615 A EP94105615 A EP 94105615A EP 94105615 A EP94105615 A EP 94105615A EP 0621742 A2 EP0621742 A2 EP 0621742A2
Authority
EP
European Patent Office
Prior art keywords
cover
caps
housing
cap
rib
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.)
Granted
Application number
EP94105615A
Other languages
German (de)
French (fr)
Other versions
EP0621742A3 (en
EP0621742B1 (en
Inventor
Roland Kastl
Reinhardt Lecheler
Theodor Kiemeier
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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
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Publication of EP0621742A2 publication Critical patent/EP0621742A2/en
Publication of EP0621742A3 publication Critical patent/EP0621742A3/en
Application granted granted Critical
Publication of EP0621742B1 publication Critical patent/EP0621742B1/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
    • 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
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details

Definitions

  • the invention relates to a housing for a lamp ballast according to the preamble of claim 1.
  • Housings for ballasts for operating discharge lamps and halogen incandescent lamps essentially consist of a lower and upper part with rectangular dimensions.
  • the upper part of the housings fulfilling the safety requirements of protection classes I, II and III (IEC 65 or VDE 0860) is composed of three separate cover caps, the middle cover cap being not detachably connected to the lower part and surrounding the ballast.
  • the caps arranged on the right and left of the middle cover cap cover the electrical mains connections or connections of the lamps to the ballast and are detachably fastened to the lower part by means of screws for protection against accidental contact and security.
  • the fastening of the side cover caps by means of screws represents a high expenditure of material. Since the screws are made of metal, there must also be a safety distance from active ones, ie live ones Metal parts of 8 mm and simply insulated live cables, such as mains cables, of 4 mm are adhered to in order to meet the safety requirements. This increases the required housing dimensions.
  • the object of the invention is to provide a housing for ballasts with a simple fastening mechanism for the side caps, which does not require screws.
  • the cover caps should meet the required protection against contact with active metal parts and the required safety distances and not by hand, i.e. be removable without a technical aid.
  • the vertical ribs on the inside of the longitudinal side walls of the side cover caps which engage in corresponding grooves in the side retaining tabs on the middle cover cap, prevent the side cover caps from being pulled off in the longitudinal direction of the housing. Due to the horizontal rib on the narrow side wall of the middle cap, which engages in the groove of the middle retaining tab attached to the top surface of the side cover caps, a firm hold is also achieved in the vertical direction. To remove the side cover caps, all that is required is to push the retaining tab away from the rib, with indentations on the top surface of the middle and side cover caps making it easier to drive a pointed object, such as a screwdriver, between the rib and the retaining tab.
  • a pointed object such as a screwdriver
  • the side cover caps can thus be removed with a simple lever movement of a screwdriver.
  • the caps simply have to be pushed on and snapped on by hand. No tools are required for this.
  • An extension of the groove at the upper end of the retaining tabs makes it easier to remove the cover caps.
  • Additional holding tabs are advantageously attached to the longitudinal side walls of the side cover caps, which snap into a groove in the edge of the lower part with a rib. These provide an additional hold and prevent the cover caps from moving sideways.
  • FIG. 3 shows a longitudinal section through the housing according to the invention in the area of the right cover cap 8.
  • the cover cap 8 consists of a top surface 10 and three side walls, of which only one longitudinal side wall 14 and the narrow side wall 15 can be seen here.
  • the side cover cap 8 has no side wall.
  • the locking of the side cover cap 8 consists of a vertical rib 22 on the inside of the two longitudinal side walls 14, which engages in a groove 23 on rectangular retaining tabs 24 in the extension of the two longitudinal side walls 5 of the middle cover cap 3.
  • a middle retaining tab 25 with a groove 26 is attached to the top surface 10, into which a rib 27 engages on the outside in the middle of the narrow side wall 21 of the middle cap 3.
  • indentations 19, 20 are made in the middle at the mutually abutting ends of the cover surfaces 4 and 10, which allow the middle retaining tab 25 to be pushed away from the rib 27 with a screwdriver blade.
  • the cap 8 can then be removed upwards.
  • An extension 28 of the groove 23 at the upper end of the retaining tabs 24 in the direction of the side cover 8 makes the removal process easier.
  • the two longitudinal side walls 14 of the side cover 8 are additionally on their inner wall equipped with a protruding retaining tab 29.
  • the holding tab 29 has on its outside a rib 30 which snaps into a groove 31 in the edge 2 of the lower housing part when the cover cap 8 is attached. This ensures better lateral support for the cover cap.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Casings For Electric Apparatus (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The housing consists of an upper part which comprises three separate cover caps (3, 8), the two lateral cover caps (8) being held by one lock each. The lock consists in each case of two lateral holding channels (24) which have a perpendicularly running groove (23) on the central cover cap, into which groove a perpendicular rib (22) engages on the inside of the longitudinal side wall (14) of the lateral cover cap (8). In addition, a central holding tongue (25) is attached to the top area (10) of the lateral cover cap (8), in the horizontal groove (26) of which central holding tongue a rib (27) engages on the outside of the narrow side wall (21) of the central cover cap (3). <IMAGE>

Description

Die Erfindung betrifft ein Gehäuse für ein Lampen-Vorschaltgerät gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a housing for a lamp ballast according to the preamble of claim 1.

Gehäuse für Vorschaltgeräte zum Betrieb von Entladungslampen und Halogenglühlampen setzen sich im wesentlichen aus einem Unter- und Oberteil mit rechteckigen Abmessungen zusammen. Bei den die Sicherheitsanforderungen der Schutzklassen I, II und III (IEC 65 bzw. VDE 0860) erfüllenden Gehäusen ist das Oberteil aus drei getrennten Abdeckkappen zusammengesetzt, wobei die mittlere Abdeckkappe nicht abnehmbar mit dem Unterteil verbunden ist und das Vorschaltgerät umgibt. Die seitlich rechts und links der mittleren Abdeckkappe angeordneten Kappen decken die elektrischen Netzanschlüsse bzw. Anschlüsse der Lampen an das Vorschaltgerät ab und sind aus Berührungsschutz- und Verschlußsicherheitsgründen mittels Schrauben lösbar am Unterteil befestigt.Housings for ballasts for operating discharge lamps and halogen incandescent lamps essentially consist of a lower and upper part with rectangular dimensions. The upper part of the housings fulfilling the safety requirements of protection classes I, II and III (IEC 65 or VDE 0860) is composed of three separate cover caps, the middle cover cap being not detachably connected to the lower part and surrounding the ballast. The caps arranged on the right and left of the middle cover cap cover the electrical mains connections or connections of the lamps to the ballast and are detachably fastened to the lower part by means of screws for protection against accidental contact and security.

Die Befestigung der seitlichen Abdeckkappen mittels Schrauben stellt einen hohen Materialaufwand dar. Da die Schrauben aus Metall sind, muß außerdem ein Sicherheitsabstand zu aktiven, d.h. spannungsführenden Metallteilen von 8 mm und zu einfach isolierten spannungsführenden Leitungen, wie z.B. Netzleitungen, von 4 mm eingehalten werden, um den Sicherheitsanforderungen zu genügen. Dadurch vergrößern sich die erforderlichen Gehäuseabmessungen.The fastening of the side cover caps by means of screws represents a high expenditure of material. Since the screws are made of metal, there must also be a safety distance from active ones, ie live ones Metal parts of 8 mm and simply insulated live cables, such as mains cables, of 4 mm are adhered to in order to meet the safety requirements. This increases the required housing dimensions.

Neben der aufwendigeren Gehäuseendmontage bei der Fertigung ist die Verwendung von Schrauben zur Befestigung auch anwenderunfreundlich. Das Festschrauben der seitlichen Abdeckkappen gestaltet sich bei der Montage an schwer zugänglichen Stellen oft sehr mühsam. Außerdem können die Schrauben bei demontierten Kappen leicht verlorengehen.In addition to the more complex final assembly of the housing during production, the use of screws for fastening is also user-unfriendly. Tightening the side cover caps is often very difficult when mounting in hard-to-reach places. In addition, the screws can easily be lost when the caps are removed.

Aufgabe der Erfindung ist es, ein Gehäuse für Vorschaltgeräte mit einem einfachen Befestigungsmechanismus für die seitlichen Abdeckkappen zu schaffen, der ohne Schrauben auskommt. Die Abdeckkappen sollten dabei den erforderlichen Berührungsschutz zu aktiven Metallteilen und die Einhaltung der benötigten Sicherheitsabstände erfüllen und nicht von Hand, d.h. ohne ein technisches Hilfsmittel abnehmbar sein.The object of the invention is to provide a housing for ballasts with a simple fastening mechanism for the side caps, which does not require screws. The cover caps should meet the required protection against contact with active metal parts and the required safety distances and not by hand, i.e. be removable without a technical aid.

Die Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale sind den Unteransprüchen zu entnehmen.The object is achieved by the characterizing features of claim 1. Further advantageous features can be found in the subclaims.

Durch die senkrechten Rippen innen an den Längs-Seitenwänden der seitlichen Abdeckkappen, die in entsprechende Nuten der seitlichen Haltelaschen an der mittleren Abdeckkappe eingreifen, wird ein Abziehen der seitlichen Abdeckkappen in der Gehäuse-Längsrichtung verhindert. Durch die waagerechte Rippe an der Schmal-Seitenwand der mittleren Abdeckkappe, die in die Nut der an der Deckfläche der seitlichen Abdeckkappen angesetzten mittleren Haltelasche eingreift, wird auch ein fester Halt in senkrechter Richtung erreicht. Zum Abnehmen der seitlichen Abdeckkappen muß lediglich die Haltelasche von der Rippe weggedrückt werden, wobei Einbuchtungen an der Deckfläche der mittleren und seitlichen Abdeckkappen es erleichtern, mit einem spitzen Gegenstand, wie z.B. einem Schraubenzieher, zwischen Rippe und Haltelasche zu fahren.The vertical ribs on the inside of the longitudinal side walls of the side cover caps, which engage in corresponding grooves in the side retaining tabs on the middle cover cap, prevent the side cover caps from being pulled off in the longitudinal direction of the housing. Due to the horizontal rib on the narrow side wall of the middle cap, which engages in the groove of the middle retaining tab attached to the top surface of the side cover caps, a firm hold is also achieved in the vertical direction. To remove the side cover caps, all that is required is to push the retaining tab away from the rib, with indentations on the top surface of the middle and side cover caps making it easier to drive a pointed object, such as a screwdriver, between the rib and the retaining tab.

Mit einer einfachen Hebelbewegung eines Schraubenziehers können somit die seitlichen Abdeckkappen demontiert werden. Zur nachfolgenden Montage der Abdeckkappen nach dem Herstellen der elektrischen Anschlüsse müssen die Kappen lediglich von Hand aufgesteckt und eingeschnappt werden. Hierzu wird kein Werkzeug benötigt.The side cover caps can thus be removed with a simple lever movement of a screwdriver. For the subsequent assembly of the cover caps after the electrical connections have been made, the caps simply have to be pushed on and snapped on by hand. No tools are required for this.

Eine Erweiterung der Nut am oberen Ende der Haltelaschen erleichtert das Abnehmen der Abdeckkappen. Vorteilhaft sind zusätzliche Haltelaschen an den Längs-Seitenwänden der seitlichen Abdeckkappen, die mit einer Rippe in eine Nut im Rand des Unterteils einschnappen, angebracht. Diese gewähren einen zusätzlichen Halt und verhindern ein seitliches Verschieben der Abdeckkappen.An extension of the groove at the upper end of the retaining tabs makes it easier to remove the cover caps. Additional holding tabs are advantageously attached to the longitudinal side walls of the side cover caps, which snap into a groove in the edge of the lower part with a rib. These provide an additional hold and prevent the cover caps from moving sideways.

Die Erfindung ist anhand der nachfolgenden Figuren näher dargestellt.

Figur 1
zeigt eine Draufsicht eines Gehäuses für ein Lampen-Vorschaltgerät
Figur 2
zeigt eine Seitenansicht des Gehäuses gemäß Figur 1
Figur 3
zeigt in vergrößerter Form einen Längsschnitt durch das Gehäuse im Bereich der rechten Abdeckkappe
In Figur 1 und 2 ist ein erfindungsgemäßes Gehäuse aus Kunststoff in Drauf- bzw. Seitenansicht dargestellt. Das Gehäuse setzt sich aus einem Unterteil und einem Oberteil zusammen, wobei das Unterteil aus einer Bodenplatte 1 und einem umlaufenden Rand 2 besteht. Das Oberteil ist in drei getrennte Abdeckkappen aufgeteilt, eine mittlere Abdeckkappe 3 mit einer Deckfläche 4 und vier Seitenwänden 5, 6 sowie zwei seitliche Abdeckkappen 7, 8 mit jeweils einer Deckfläche 9 bzw. 10 und jeweils drei Seitenwänden 11, 12, 13 bzw. 14, 15, 16. Während der Innenraum unter der mittleren Abdeckkappe 3 zur Aufnahme des eigentlichen Vorschaltgeräts dient, sind die Räume unter den seitlichen Abdeckkappen 7, 8 für die Aufnahme der elektrischen Anschlüsse vorgesehen. Die mittlere Abdeckkappe 3 wird nach Einbau der Vorschaltgeräteteile nicht abnehmbar mit dem Rand 2 verbunden. Die beiden seitlichen Abdeckkappen 7, 8 können, wie weiter unten aufgezeigt, durch Einführen einer Schraubenzieherklinge in die Öffnungen, die durch rechteckige Einbuchtungen 17, 18 bzw. 19, 20 an den gegeneinanderstoßenden Enden der benachbarten Deckflächen 9 und 4 bzw. 10 und 4 gebildet sind, abgehoben werden.The invention is illustrated by the following figures.
Figure 1
shows a plan view of a housing for a lamp ballast
Figure 2
shows a side view of the housing according to Figure 1
Figure 3
shows in an enlarged form a longitudinal section through the housing in the area of the right cap
In Figures 1 and 2, a plastic housing according to the invention is shown in plan and side views. The housing is composed of a lower part and an upper part, the lower part consisting of a base plate 1 and a peripheral edge 2. The upper part is divided into three separate cover caps, a middle cover cap 3 with a cover surface 4 and four side walls 5, 6 and two side cover caps 7, 8 each with a cover surface 9 and 10 and three side walls 11, 12, 13 and 14 respectively , 15, 16. While the interior space under the middle cover cap 3 serves to accommodate the actual ballast, the spaces under the side cover caps 7, 8 are provided for receiving the electrical connections. The middle cap 3 is not detachably connected to the edge 2 after installation of the ballast parts. The two side caps 7, 8 can, as shown below, by inserting a screwdriver blade into the openings, which are formed by rectangular indentations 17, 18 and 19, 20 at the mutually abutting ends of the adjacent cover surfaces 9 and 4 or 10 and 4 are lifted off.

Figur 3 stellt einen Längsschnitt durch das erfindungsgemäße Gehäuse im Bereich der rechten Abdeckkappe 8 dar. Zur besseren Veranschaulichung wurde hierbei auf eine Darstellung der integrierten elektrischen Anschlüsse, die nichts mit dem Erfindungsgedanken zu tun haben, verzichtet. Die Abdeckkappe 8 besteht aus einer Deckfläche 10 sowie drei Seitenwänden, von denen hier nur eine Längs-Seitenwand 14 und die Schmal-Seitenwand 15 zu sehen ist. In Richtung zur mittleren Abdeckkappe 3, von der hier ein Teil der Deckfläche 4 sowie eine Schmal-Seitenwand 21 zu sehen ist, weist die seitliche Abdeckkappe 8 keine Seitenwand auf.FIG. 3 shows a longitudinal section through the housing according to the invention in the area of the right cover cap 8. For better illustration, here, the integrated electrical connections, which have nothing to do with the idea of the invention, are not shown. The cover cap 8 consists of a top surface 10 and three side walls, of which only one longitudinal side wall 14 and the narrow side wall 15 can be seen here. In the direction of the middle cover cap 3, of which part of the cover surface 4 and a narrow side wall 21 can be seen here, the side cover cap 8 has no side wall.

Die Verriegelung der seitlichen Abdeckkappe 8 besteht aus jeweils einer senkrechten Rippe 22 innen an den beiden Längs-Seitenwänden 14, die in eine Nut 23 an rechteckigen Haltelaschen 24 in der Verlängerung der beiden Längs-Seitenwände 5 der mittleren Abdeckkappe 3 eingreift. Außerdem ist an der Deckfläche 10 eine mittlere Haltelasche 25 mit einer Nut 26 angesetzt, in die eine Rippe 27 außen in der Mitte der Schmal-Seitenwand 21 der mittleren Abdeckkappe 3 eingreift.The locking of the side cover cap 8 consists of a vertical rib 22 on the inside of the two longitudinal side walls 14, which engages in a groove 23 on rectangular retaining tabs 24 in the extension of the two longitudinal side walls 5 of the middle cover cap 3. In addition, a middle retaining tab 25 with a groove 26 is attached to the top surface 10, into which a rib 27 engages on the outside in the middle of the narrow side wall 21 of the middle cap 3.

Zum Lösen der seitlichen Abdeckkappe 8 sind an den gegeneinanderstoßenden Enden der Deckflächen 4 bzw. 10 in der Mitte Einbuchtungen 19, 20 vorgenommen, die es ermöglichen, mit einer Schraubenzieherklinge die mittlere Haltelasche 25 von der Rippe 27 wegzudrücken. Die Abdeckkappe 8 kann dann nach oben abgezogen werden. Durch eine Erweiterung 28 der Nut 23 am oberen Ende der Haltelaschen 24 in Richtung der seitlichen Abdeckkappe 8 wird der Abziehvorgang erleichtert.In order to release the side covering cap 8, indentations 19, 20 are made in the middle at the mutually abutting ends of the cover surfaces 4 and 10, which allow the middle retaining tab 25 to be pushed away from the rib 27 with a screwdriver blade. The cap 8 can then be removed upwards. An extension 28 of the groove 23 at the upper end of the retaining tabs 24 in the direction of the side cover 8 makes the removal process easier.

Die beiden Längs-Seitenwände 14 der seitlichen Abdeckkappe 8 sind zusätzlich an ihrer Innenwand mit einer überstehenden Haltelasche 29 ausgestattet. Die Haltelasche 29 besitzt an ihrer Außenseite eine Rippe 30, die bei aufgesetzter Abdeckkappe 8 in eine Nut 31 im Rand 2 des Gehäuseunterteils einschnappt. Dadurch wird ein besserer Seitenhalt der Abdeckkappe erreicht.The two longitudinal side walls 14 of the side cover 8 are additionally on their inner wall equipped with a protruding retaining tab 29. The holding tab 29 has on its outside a rib 30 which snaps into a groove 31 in the edge 2 of the lower housing part when the cover cap 8 is attached. This ensures better lateral support for the cover cap.

Claims (4)

Gehäuse für ein elektrisches Lampen-Vorschaltgerät mit folgenden Merkmalen: - das Gehäuse besitzt eine im wesentlichen quaderförmige Form mit rechteckiger Grundfläche und setzt sich aus einem Unterteil und einem Oberteil zusammen - das Unterteil des Gehäuses besteht aus einer Bodenplatte (1) und einem umlaufenden Rand (2) - das Oberteil des Gehäuses setzt sich aus drei getrennten Abdeckkappen (3, 7, 8) zusammen, wobei - die mittlere Abdeckkappe (3) aus einer Deckfläche (4) und vier Seitenwänden (5, 6) besteht und das Vorschaltgerät umgibt und - die beiden seitlich von der mittleren Abdeckkappe (3) angeordneten Abdeckkappen (7, 8) aus jeweils einer Deckfläche (9, 10) und drei Seitenwänden (11, 12, 13; 14, 15, 16) bestehen und die elektrischen Anschlüsse umgeben, dadurch gekennzeichnet, daß die seitlichen Abdeckkappen (7, 8) durch jeweils eine Verriegelung gehalten werden, die sich aus folgenden Teilen zusammensetzt: - zwei seitliche Haltelaschen (24), die über die Enden der beiden Längs-Seitenwände (5, 6) der mittleren Abdeckkappe (3) hinausragen und außen eine senkrecht verlaufende Nut (23) aufweisen, in die eine ebenfalls senkrecht verlaufende Rippe (22) innen an den Längs-Seitenwänden (11, 13; 14, 16) der seitlichen Abdeckkappen (7, 8) eingreift sowie - eine mittlere Haltelasche (25), die an der Deckfläche (10) der seitlichen Abdeckkappen (8) angesetzt und der Schmal-Seitenwand (21) der mittleren Abdeckkappe zugewandt ist, mit einer waagerecht verlaufenden Nut (26), in die eine waagerecht verlaufende Rippe (27) außen an der Schmal-Seitenwand (21) der mittleren Abdeckkappe (3) eingreift. Housing for an electric lamp ballast with the following features: - The housing has an essentially cuboid shape with a rectangular base and is composed of a lower part and an upper part - The lower part of the housing consists of a base plate (1) and a peripheral edge (2) - The upper part of the housing is composed of three separate caps (3, 7, 8), whereby - The middle cap (3) consists of a top surface (4) and four side walls (5, 6) and surrounds the ballast and the two cover caps (7, 8) arranged laterally from the middle cover cap (3) each consist of a cover surface (9, 10) and three side walls (11, 12, 13; 14, 15, 16) and surround the electrical connections, characterized in that the side cover caps (7, 8) are each held by a lock, which is composed of the following parts: - Two lateral retaining tabs (24) which protrude beyond the ends of the two longitudinal side walls (5, 6) of the central cap (3) and have a vertically extending groove (23) on the outside, in which also engages a vertically extending rib (22) on the inside on the longitudinal side walls (11, 13; 14, 16) of the side cover caps (7, 8) and - A middle retaining tab (25), which is attached to the top surface (10) of the side cover caps (8) and faces the narrow side wall (21) of the middle cover cap, with a horizontally extending groove (26) into which a horizontally extending Rib (27) engages on the outside on the narrow side wall (21) of the middle cap (3). Gehäuse nach Anspruch 1, dadurch gekennzeichnet, daß die Deckflächen (4, 9, 10) der mittleren Abdeckkappe (3) und der seitlichen Abdeckkappen (7, 8) an ihren benachbarten Enden in der Mitte jeweils gegeneinanderstoßende Einbuchtungen (17, 18; 19, 20) aufweisen.Housing according to claim 1, characterized in that the cover surfaces (4, 9, 10) of the middle cover cap (3) and the side cover caps (7, 8) have mutually abutting indentations (17, 18; 19, 20) have. Gehäuse nach Anspruch 1, dadurch gekennzeichnet, daß sich die senkrecht verlaufende Nut (23) der Haltelaschen (24) an ihrem oberen Ende in Richtung der seitlichen Abdeckkappen (8) erweitert.Housing according to claim 1, characterized in that the vertical groove (23) of the retaining tabs (24) widens at its upper end in the direction of the side cover caps (8). Gehäuse nach Anspruch 1, dadurch gekennzeichnet, daß die seitlichen Abdeckkappen (8) innen an ihren beiden Längs-Seitenwänden (14) zusätzlich je eine überstehende Haltelasche (29) mit einer Rippe (30) aufweisen, wobei die Rippe in eine Nut (31) im längsseitigen Rand (2) des Unterteils eingreift.Housing according to claim 1, characterized in that the lateral cover caps (8) on the inside of their two longitudinal side walls (14) each additionally have a protruding retaining tab (29) with a rib (30), the rib in a groove (31) engages in the longitudinal edge (2) of the lower part.
EP94105615A 1993-04-20 1994-04-12 Housing for a lamp ballast Expired - Lifetime EP0621742B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9305978U DE9305978U1 (en) 1993-04-20 1993-04-20
DE9305978U 1993-04-20

Publications (3)

Publication Number Publication Date
EP0621742A2 true EP0621742A2 (en) 1994-10-26
EP0621742A3 EP0621742A3 (en) 1995-04-05
EP0621742B1 EP0621742B1 (en) 1998-08-12

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EP94105615A Expired - Lifetime EP0621742B1 (en) 1993-04-20 1994-04-12 Housing for a lamp ballast

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EP (1) EP0621742B1 (en)
AT (1) ATE169793T1 (en)
DE (2) DE9305978U1 (en)

Cited By (2)

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EP0735800A2 (en) * 1995-03-31 1996-10-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Apparatus for operating an electric lamp
CH700927B1 (en) * 2006-06-06 2010-11-15 Regent Beleuchtungskoerper Ag Assembling system for assembling partially or fully recessed ceiling lamp in cast-in-place concrete ceiling, has housing arranged in flush-mounting box to accommodate ballast that is foldable between opened and closed conditions by housing

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Publication number Priority date Publication date Assignee Title
DE9412099U1 (en) * 1994-07-28 1995-11-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Operating device for electric lamps

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DE3901285A1 (en) * 1989-01-18 1990-07-26 Halloform Gmbh & Co Kg Transformer housing
DE9011125U1 (en) * 1990-07-27 1990-10-04 Holzer, Walter, Dr.H.C., 7758 Meersburg, De

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US4451693A (en) * 1982-03-22 1984-05-29 Vest Gary W Combined ballast container and wall plug for portable electrical equipment
US4771910A (en) * 1987-10-13 1988-09-20 United Technologies Automotive, Inc. Top and housing with peripheral, resilient interface
DE3901285A1 (en) * 1989-01-18 1990-07-26 Halloform Gmbh & Co Kg Transformer housing
DE9011125U1 (en) * 1990-07-27 1990-10-04 Holzer, Walter, Dr.H.C., 7758 Meersburg, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0735800A2 (en) * 1995-03-31 1996-10-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Apparatus for operating an electric lamp
EP0735800A3 (en) * 1995-03-31 1997-12-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Apparatus for operating an electric lamp
US5757136A (en) * 1995-03-31 1998-05-26 Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen Mbh Socket and socket housing for an electric lamp particularly for a suspended or pendant lamp
CH700927B1 (en) * 2006-06-06 2010-11-15 Regent Beleuchtungskoerper Ag Assembling system for assembling partially or fully recessed ceiling lamp in cast-in-place concrete ceiling, has housing arranged in flush-mounting box to accommodate ballast that is foldable between opened and closed conditions by housing

Also Published As

Publication number Publication date
ATE169793T1 (en) 1998-08-15
DE9305978U1 (en) 1993-06-17
EP0621742A3 (en) 1995-04-05
DE59406634D1 (en) 1998-09-17
EP0621742B1 (en) 1998-08-12

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