EP0037958A1 - Combined lighting and air exhaust device for an underpressure ceiling - Google Patents

Combined lighting and air exhaust device for an underpressure ceiling Download PDF

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Publication number
EP0037958A1
EP0037958A1 EP81102437A EP81102437A EP0037958A1 EP 0037958 A1 EP0037958 A1 EP 0037958A1 EP 81102437 A EP81102437 A EP 81102437A EP 81102437 A EP81102437 A EP 81102437A EP 0037958 A1 EP0037958 A1 EP 0037958A1
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EP
European Patent Office
Prior art keywords
housing
openings
exhaust air
opening
section
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Granted
Application number
EP81102437A
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German (de)
French (fr)
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EP0037958B1 (en
Inventor
Kurt Schmoll
Rüdiger Goltz
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Siemens AG
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Siemens AG
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Priority to AT81102437T priority Critical patent/ATE3669T1/en
Publication of EP0037958A1 publication Critical patent/EP0037958A1/en
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Publication of EP0037958B1 publication Critical patent/EP0037958B1/en
Expired legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures

Definitions

  • the invention relates to an exhaust lamp with a housing with an opening for connection to an extraction system, and with a throttle device between this extraction system and the opening in the housing in the form of a plastic part, the opening cross section of which can be enlarged by cutting off marked parts.
  • the individual exhaust air lamps are connected in parallel to an extraction system; the amount of exhaust air led through the individual lamp therefore depends on the flow resistance of the exhaust lamp, i.e. on the pressure drop it generates, which in turn is a function of the air volume. Because of these relationships, there is a requirement to make the pressure drop of an exhaust air lamp changeable. For this purpose, for example, poppet valves with which the flow resistance can be changed continuously have been used.
  • the invention is therefore based on the object of increasing the adjustment range which can be covered with an exhaust air lamp of the type mentioned at the outset by simple means.
  • the solution to this problem is characterized by the features specified in claim 1.
  • the invention thus creates an exhaust air lamp, the setting range of which, by choosing a correspondingly large number of openings, does justice to all practically occurring conditions.
  • Cheap plastic covers are used for adjustment, through which a part of the openings are completely closed and, if necessary, the passage cross section of a further opening is reduced by cutting out a part of the cover.
  • the housing of the exhaust air lamp designated 1
  • five circular openings with the same cross-section and the same spacing from one another are arranged in the side walls, two openings 101 and 102 of which can be seen in FIG.
  • the fluorescent lamp 10 is arranged in the center of the housing and a channel-shaped reflector is arranged around it.
  • the latter consists of a roof mirror 141 fixedly mounted in the housing and two side mirrors 142, 143, which together with a grid form a unit which can be removed from the housing.
  • Side mirrors and roof mirrors are arranged in such a way that a longitudinal gap 140 remains between them, through which the exhaust air entering from the room through the light exit opening 13 reaches the openings 101, 102.
  • Each of the openings in the housing 1 can be closed by a circular cover 2 made of plastic, which for this purpose has on the inside a circular bead 23 and four hook-shaped spring arms 22 which reach through the openings 101, 102 and get caught behind the edges of the opening.
  • the bead ring serves as a seal.
  • the cover 2 On the front side, the cover 2 has coaxial notches a to f, through which a circular inner part 20 and concentric circular rings 21 are formed. Each of the notches thus limits one of the possible opening cross sections.
  • the pressure drop d P (ordinate) is plotted against the exhaust air volume flow V (abscissa), the number of openings covered or the cutting groove used in each case being indicated as a parameter at the upper edge. From this it can be seen that, on the one hand, volume flows of up to 500 m 3 per hour can be managed with a pressure drop of 30 Pascal (all openings open), but that, even with a volume flow as low as 20 m 3 per hour, there is still a pressure drop of more than 20 Pascal can be reached. In the latter case, nine openings are completely closed and the middle section 20 is cut out in the cover of the tenth opening, so that the passage opening is determined by the notch f.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Ventilation (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Amplifiers (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

1. Ventilated light for a low-pressure cover, comprising a housing (1) which has ventilating openings (101, 102) of identical shape and size which can be closed either completely or partially by synthetic components, and comprising two side reflectors (142, 143) which are arranged in the housing on both sides of a fluorescent lamp (10) and which between one another define the light outlet opening (13) below and the air throughput opening (140) above, characterised in that the side reflectors (142, 143), together with a roof reflector (141) arranged between them, form a channel shaped reflector enclosing the fluorescent lamp (10) and the upper third portion of which is provided with a longitudinal slot (140) between the roof reflector (141) and each side reflector (142, 143), that at least two, preferably ten, ventilation openings (101, 102) are arranged in the side walls (11, 12) of the housing (1), each of which openings has a minimum cross-section of 20 cm**2 and which are uniformly distributed along the length of the housing (1), and that the ventilation openings (101, 102) can be closed by means of snap-fitted covers (2) which consist of synthetic material and which have components (20, 21) which can be cut out and which are delimited from one another by grooves (a to f).

Description

Die Erfindung betrifft eine Abluftleuchte mit einem Gehäuse mit einer Öffnung zum Anschluß an eine Absauganlage, und mit einer Drosseleinrichtung zwischen dieser Absauganlage und der Öffnung im Gehäuse in Form eines Kunststoffteiles, dessen Öffnungsquerschnitt durch Abschneiden markierter Teile vergrößerbar ist.The invention relates to an exhaust lamp with a housing with an opening for connection to an extraction system, and with a throttle device between this extraction system and the opening in the housing in the form of a plastic part, the opening cross section of which can be enlarged by cutting off marked parts.

Strömungstechnisch sind die einzelnen Abluftleuchten parallel an eine Absauganlage angeschlossen; die über die einzelne Leuchte geführte Abluftmenge hängt daher vom Strömungswiderstand.der Abluftleuchte, d.h. von dem von ihr erzeugten Druckabfall ab, der seinerseits wieder eine Funktion der Luftmenge ist. Wegen dieser Zusammenhänge besteht die Forderung, den Druckabfall einer Abluftleuchte veränderbar zu machen. Hierzu hat man beispielsweise Tellerventile verwendet, mit denen sich der Strömungswiderstand stetig verändern läßt.In terms of flow, the individual exhaust air lamps are connected in parallel to an extraction system; the amount of exhaust air led through the individual lamp therefore depends on the flow resistance of the exhaust lamp, i.e. on the pressure drop it generates, which in turn is a function of the air volume. Because of these relationships, there is a requirement to make the pressure drop of an exhaust air lamp changeable. For this purpose, for example, poppet valves with which the flow resistance can be changed continuously have been used.

Mitunter ist es jedoch bereits ausreichend,- wenn man den Strömungswiderstand einer Abluftleuchte stufenweise verändern und einer gegegebenen Anlagenkonfiguration anpassen kann. Eine sehr einfache Einstellmöglichkeit dieser Art ist in der AT-PS 328 678 beschrieben: Danach wird zwischen Absauganlage und das Gehäuse ein konisch verlaufendes Rohrstück aus Kunststoff gesetzt, von dem sich durch Einkerbungen markierte Teile abschneiden lassen, wodurch der wirksame Querschnitt und damit der Strömungswiderstand einstellbar ist. Diese "Düsen" wurden jedoch immer nur in Anlagen eingesetzt, bei denen die einzelnen Abluftleuchten mit der Absauganlage durch Abluftrohre verbunden sind.Sometimes, however, it is already sufficient - if you can gradually change the flow resistance of an exhaust air lamp and adapt it to a given system configuration. A very simple setting option of this type is described in AT-PS 328 678: Then a conical piece of pipe made of plastic is placed between the suction system and the housing, from which parts marked by notches can be cut off, whereby the effective cross-section and thus the flow resistance can be adjusted is. However, these "nozzles" have only ever been used in systems in which the individual exhaust air lamps pass through with the extraction system Exhaust pipes are connected.

Bei Abluftanlagen mit Unterdruckdecke ist man dagegen andere Wege gegangen: Die Gehäuse der hierfür verwendeten Abluftleuchten weisen auf ihrer Oberseite eine Vielzahl von verhältnismäßig kleinen Schlitzen auf, deren effektiver Querschnitt durch querverschiebbare Abdeckleisten veränderbar ist. Eine solche aus dem DE-Gbm 71 35 369 bekannte Abluftleuchte ist aber nicht nur verhältnismäßig aufwendig; ihr haftet auch der Nach-' teil an, daß der durch die Verstelleinrichtung abdeckbare Bereich von Arbeitspunkten verhältnismäßig klein ist. Vor allem lassen sich keine hohen Widerstände (größer 10 Pascal) bei niedrigem Volumenstrom (kleiner 80 m3pro Stünde) einstellen.In the case of exhaust air systems with a vacuum ceiling, however, other approaches have been taken: The housing of the exhaust air lights used for this purpose have a large number of relatively small slits on their upper side, the effective cross-section of which can be changed by means of cover strips that can be moved. Such an exhaust air lamp known from DE-Gbm 71 35 369 is not only relatively complex; it also adheres to the demand 'part in that the coverable by the adjusting range of operating points is relatively small. Above all, high resistances (greater than 10 Pascals) with a low volume flow (less than 80 m 3 per hour) cannot be set.

Der Erfindung liegt daher die Aufgabe zugrunde, den mit einer Abluftleuchte der eingangs genannten Art überatreichbaren Einstellbereich mit einfachen Mitteln zu vergrößern. Die Lösung dieser Aufgabe ist durch die in Anspruch 1 angegebenen Merkmale gekennzeichnet.The invention is therefore based on the object of increasing the adjustment range which can be covered with an exhaust air lamp of the type mentioned at the outset by simple means. The solution to this problem is characterized by the features specified in claim 1.

Die Erfindung schafft somit eine Abluftleuchte, deren Einstellbereich durch Wahl einer entsprechend großen Anzahl von Öffnungen allen praktisch auftretenden Bedingungen gerecht wird. Zur Einstellung dienen dabei billige Kunststoffdeckel, durch die ein Teil der Öffnungen vollständig geschlossen und gegebenenfalls der Durchtrittsquerschnitt einer weiteren Öffnung durch Ausschneiden eines Teiles des Deckels reduziert ist.The invention thus creates an exhaust air lamp, the setting range of which, by choosing a correspondingly large number of openings, does justice to all practically occurring conditions. Cheap plastic covers are used for adjustment, through which a part of the openings are completely closed and, if necessary, the passage cross section of a further opening is reduced by cutting out a part of the cover.

Besonders vorteilhaft ist es, in den beiden Längswänden des Gehäuses der Abluftleuchte jeweils fünf gleichmäßig verteilte kreisrunde Öffnungen mit einem Querschnitt von mindestens 20 ."cm vorzusehen und kreisrunde Deckel mit konzentrischen Einkerbungen zu verwenden. Ein Ausführungsbeispiel dieser Art wird anhand der Figuren näher erläutert; es zeigen

  • FIG 1 einen Querschnitt durch eine Abluftleuchte,
  • FIG 2 eine Draufsicht auf einen Deckel,
  • FIG 3 einen Querschnitt durch diesen Deckel entlang Linie III-III in FIG 2, und
  • FIG 4 ein Volumenstrom-/Druckdiagramm, das den überdeckten Einstellbereich erkennen läßt.
It is particularly advantageous to provide five evenly distributed circular openings with a cross section of at least 20. Cm in each of the two longitudinal walls of the housing of the exhaust air lamp and to use circular covers with concentric notches Example of this type is explained in more detail with reference to the figures; show it
  • 1 shows a cross section through an exhaust air lamp,
  • 2 shows a plan view of a cover,
  • 3 shows a cross section through this cover along line III-III in Figure 2, and
  • 4 shows a volume flow / pressure diagram which shows the covered setting range.

Das mit 1 bezeichnete Gehäuse der Abluftleuchte hat im wesentlichen vertikale Seitenwände 11, 12, eine Lichtaustrittsöffnung 13 und einen im wesentlichen rechteckigen Querschnitt. In den Seitenwänden sind jweils fünf kreisrunde Öffnungen mit gleichem Querschnitt und untereinander gleichem Abstand angeordnet, von denen zwei Öffnungen 101 und 102 in FIG 1 erkennbar sind. In dem Gehäuse ist mittig die Leuchtstofflampe 10 und um sie herum ein rinnenförmiger Reflektor angeordnet. Letzterer besteht aus einem fest in dem Gehäuse montierten Dachspiegel 141 und zwei Seitenspiegeln 142, 143, die zusammen mit einem Raster eine aus dem Gehäuse herausnehmbare Einheit bilden. Seitenspiegel und Dachspiegel sind so angeordnet, daß zwischen ihnen jeweils ein Längsspalt 140 offenbleibt, durch die vom Raum durch die Lichtaustrittsöffnung 13 eintretende Abluft zu den Öffnungen 101, 102 gelangt.The housing of the exhaust air lamp, designated 1, has essentially vertical side walls 11, 12, a light exit opening 13 and a substantially rectangular cross section. In each case, five circular openings with the same cross-section and the same spacing from one another are arranged in the side walls, two openings 101 and 102 of which can be seen in FIG. The fluorescent lamp 10 is arranged in the center of the housing and a channel-shaped reflector is arranged around it. The latter consists of a roof mirror 141 fixedly mounted in the housing and two side mirrors 142, 143, which together with a grid form a unit which can be removed from the housing. Side mirrors and roof mirrors are arranged in such a way that a longitudinal gap 140 remains between them, through which the exhaust air entering from the room through the light exit opening 13 reaches the openings 101, 102.

Jede der Öffnungen in dem Gehäuse 1 ist durch einen kreisrunden Deckel 2 aus Kunststoff verschließbar, der hierzu auf der Innenseite einen kreisrunden Wulstrand 23 und vier hakenförmige Federarme 22 aufweist, die durch die Öffnungen 101, 102 greifen und sich hinter den Kanten der Öffnung verhaken. Der Wulstring dient dabei der Abdichtung.Each of the openings in the housing 1 can be closed by a circular cover 2 made of plastic, which for this purpose has on the inside a circular bead 23 and four hook-shaped spring arms 22 which reach through the openings 101, 102 and get caught behind the edges of the opening. The bead ring serves as a seal.

Auf der Vorderseite-weist der Deckel 2 koaxiale Einkerbungen a bis f auf, durch die ein kreisförmiger Innenteil 20 und konzentrische Kreisringe 21 gebildet werden. Jede der Einkerbungen begrenzt somit eine der möglichen Öffnungsquerschnitte.On the front side, the cover 2 has coaxial notches a to f, through which a circular inner part 20 and concentric circular rings 21 are formed. Each of the notches thus limits one of the possible opening cross sections.

In FIG 4 ist der Druckabfall d P (Ordinate) über dem Abluftvolumenstrom V (Abszisse) aufgetragen, wobei die Anzahl der abgedeckten Öffnungen bzw.. die jeweils zum Einsatz kommende Schneidrille als Parameter am oberen Rand angegeben ist. Daraus ist ersichtlich, daß sich einerseits Volumenströme .bis zu 500 m3pro Stunde bei einem Druckabfall von 30 Pascal bewältigen lassen (alle Öffnungen offen), daß aber trotzdem auch bei einem so niedrigen Volumenstrom wie 20 m3pro Stunde immer noch ein Druckabfall von mehr als 20 Pascal erreichbar ist. In letzterem Fall sind neun Öffnungen vollständig verschlossen und im Deckel der zehnten Öffnung ist das mittlere Teilstück 20 herausgeschnitten, so daß die Durchtrittsöffnung durch die Einkerbung f bestimmt ist.In FIG. 4, the pressure drop d P (ordinate) is plotted against the exhaust air volume flow V (abscissa), the number of openings covered or the cutting groove used in each case being indicated as a parameter at the upper edge. From this it can be seen that, on the one hand, volume flows of up to 500 m 3 per hour can be managed with a pressure drop of 30 Pascal (all openings open), but that, even with a volume flow as low as 20 m 3 per hour, there is still a pressure drop of more than 20 Pascal can be reached. In the latter case, nine openings are completely closed and the middle section 20 is cut out in the cover of the tenth opening, so that the passage opening is determined by the notch f.

Claims (6)

1. Abluftleuchte mit einem Gehäuse mit einer Öffnung zum Anschluß an eine Absauganlage, und mit einer Drosseleinrichtung zwischen dieser Absauganlage und der Öffnung im Gehäuse in Form eines Kunststoffteiles, dessen Öffnungsquerschnitt durch Abschneiden markierter Teile vergrößerbar ist, dadurch gekennzeichnet, daß das Gehäuse (1) mindestens zwei Öffnungen (101, 102) gleicher Form und gleichen Querschnitts aufweist, daß diese Öffnungen durch einsprengbare Deckel (2) aus Kunststoff verschließbar sind, und daß diese Deckel ausschneidbare Teile (20, 21) aufweisen, die durch Einkerbungen (a bis f) voneinander abgegrenzt sind.1. Exhaust lamp with a housing with an opening for connection to an extraction system, and with a throttle device between this extraction system and the opening in the housing in the form of a plastic part, the opening cross section of which can be enlarged by cutting off marked parts, characterized in that the housing (1) has at least two openings (101, 102) of the same shape and the same cross-section, that these openings can be closed by detachable plastic covers (2), and that these covers have cut-out parts (20, 21) that are cut by notches (a to f) are delimited from each other. 2. Abluftleuchte nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnungen (101, 102) des Gehäuses (1) in dessen vertikalen Seitenwänden (11, 12) angeordnet und gleichmäßig über die Länge des Gehäuses verteilt sind.2. Exhaust air lamp according to claim 1, characterized in that the openings (101, 102) of the housing (1) in its vertical side walls (11, 12) are arranged and are evenly distributed over the length of the housing. 3. Abluftleuchte nach Anspruch 2, dadurch gekennzeichnet , daß die Öffnungen (101, 102) auf die beiden Seitenwände (11, 12) des Gehäuses (1) gleichmäßig verteilt sind.3. Exhaust air lamp according to claim 2, characterized in that the openings (101, 102) on the two side walls (11, 12) of the housing (1) are evenly distributed. 4. Abluftleuchte nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß zwischen der Lichtaustrittsöffnung (13) des Gehäuses (1) und den Öffnungen - (101, 102) ein rinnenförmiger Reflektor für eine Leuchtstofflampe (10) angeordnet ist, der in seinem oberen Drittel zwei symmetrisch zur Mittellinie verlaufende Längsschlitze (140) aufweist, die zwischen einem fest im Gehäuse montierten Dachspiegel (141) und zwei herausnehmbaren Seitenspiegeln (142, 143) gebildet ist.4. Exhaust air lamp according to claim 2 or 3, characterized in that between the light exit opening (13) of the housing (1) and the openings - (101, 102) a channel-shaped reflector for a fluorescent lamp (10) is arranged, which in its upper third has two longitudinal slots (140) which run symmetrically to the center line and which are formed between a roof mirror (141) fixedly mounted in the housing and two removable side mirrors (142, 143). 5. Abluftleuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet , daß die Öffnungen (101, 102) des Gehäuses (1) mindestens einen Querschnitt von 20 m2haben.5. Exhaust air lamp according to one of claims 1 to 4, characterized in that the openings (101, 102) of the housing (1) have at least a cross section of 20 m 2 . 6. Abluftleuchte nach Anspruch 5, dadurch gekennzeichnet , daß die Öffnungen (101, 102) und die Deckel (2) kreisförmig und die Einkerbungen (a bis f) koaxial angeordnet sind.6. Exhaust air lamp according to claim 5, characterized in that the openings (101, 102) and the cover (2) are circular and the notches (a to f) are arranged coaxially.
EP81102437A 1980-04-03 1981-03-31 Combined lighting and air exhaust device for an underpressure ceiling Expired EP0037958B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102437T ATE3669T1 (en) 1980-04-03 1981-03-31 EXHAUST LIGHT FOR A VACUUM CEILING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3013147A DE3013147C2 (en) 1980-04-03 1980-04-03 Exhaust air light for a negative pressure ceiling
DE3013147 1980-04-03

Publications (2)

Publication Number Publication Date
EP0037958A1 true EP0037958A1 (en) 1981-10-21
EP0037958B1 EP0037958B1 (en) 1983-06-01

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ID=6099308

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EP81102437A Expired EP0037958B1 (en) 1980-04-03 1981-03-31 Combined lighting and air exhaust device for an underpressure ceiling

Country Status (5)

Country Link
EP (1) EP0037958B1 (en)
AT (1) ATE3669T1 (en)
DE (1) DE3013147C2 (en)
FI (1) FI65138C (en)
ZA (1) ZA812211B (en)

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US10024531B2 (en) 2013-12-19 2018-07-17 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
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US11713773B2 (en) 2014-06-06 2023-08-01 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10221861B2 (en) 2014-06-06 2019-03-05 Airius Ip Holdings Llc Columnar air moving devices, systems and methods
US11236766B2 (en) 2014-06-06 2022-02-01 Airius Ip Holdings Llc Columnar air moving devices, systems and methods
US10724542B2 (en) 2014-06-06 2020-07-28 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US11105341B2 (en) 2016-06-24 2021-08-31 Airius Ip Holdings, Llc Air moving device
US11421710B2 (en) 2016-06-24 2022-08-23 Airius Ip Holdings, Llc Air moving device
US10487852B2 (en) 2016-06-24 2019-11-26 Airius Ip Holdings, Llc Air moving device
USD886275S1 (en) 2017-01-26 2020-06-02 Airius Ip Holdings, Llc Air moving device
USD885550S1 (en) 2017-07-31 2020-05-26 Airius Ip Holdings, Llc Air moving device
USD887541S1 (en) 2019-03-21 2020-06-16 Airius Ip Holdings, Llc Air moving device
US11598539B2 (en) 2019-04-17 2023-03-07 Airius Ip Holdings, Llc Air moving device with bypass intake
US11781761B1 (en) 2019-04-17 2023-10-10 Airius Ip Holdings, Llc Air moving device with bypass intake

Also Published As

Publication number Publication date
DE3013147C2 (en) 1983-02-17
DE3013147A1 (en) 1981-10-08
ZA812211B (en) 1982-04-28
ATE3669T1 (en) 1983-06-15
EP0037958B1 (en) 1983-06-01
FI65138C (en) 1984-03-12
FI811036L (en) 1981-10-04
FI65138B (en) 1983-11-30

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