AU633553B2 - Light fitting including filter elements - Google Patents

Light fitting including filter elements Download PDF

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Publication number
AU633553B2
AU633553B2 AU52862/90A AU5286290A AU633553B2 AU 633553 B2 AU633553 B2 AU 633553B2 AU 52862/90 A AU52862/90 A AU 52862/90A AU 5286290 A AU5286290 A AU 5286290A AU 633553 B2 AU633553 B2 AU 633553B2
Authority
AU
Australia
Prior art keywords
air
frame portion
filter
light
casing
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 - Fee Related
Application number
AU52862/90A
Other versions
AU5286290A (en
Inventor
Anders Krantz
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.)
Airchitect I Soderhamn AB
Original Assignee
Airchitect I Soderhamn AB
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 Airchitect I Soderhamn AB filed Critical Airchitect I Soderhamn AB
Publication of AU5286290A publication Critical patent/AU5286290A/en
Application granted granted Critical
Publication of AU633553B2 publication Critical patent/AU633553B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • 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
    • F24F13/20—Casings or covers
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/02—Details or features not otherwise provided for combined with lighting fixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Filters (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Description

OPI DATE 09/10/90 APPLN. ID 52862 SAOJP DATE 15/11/90
PCTF
PCT NUMBER PCT/SE90/00141 INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (51) International Patent Classification 5 (11) International Publication Number: WO 90/10830 I F24F13/078 Al (43)International Publication Date: 20 September 1990 (20.09.90) (21) International Application Number: PCT SE90/00141 (81) Designated States: AT. AT(European patent), AU, BB. BE (European patent), BF (OAPI patent), BG, BJ (OAPI (22) International Filing Date: I March 1990 (01.03.90) patent). BR, CA, CF (OAPI patent), CG (OAPI patent), CH. CH (European patent), CM (OAPI patent). DE.
DE (European patent). DK, DK (European patent). ES, Priority data: ES (European patent). FI, FR (European patent), GA 8900776-9 6 March 1989 (06.03.89) SE (OAPI patent), GB, GB (European patent), HU, IT (European patent), JP, KP. KR. LK, LU. LU (European patent), MC, MG, ML (OAPI patent), MR (OAPI patent), (71) Applicant (for all designated States except U'S: AIRCHI- MW. NL. NL (European patent), NO. RO, SD, SE. SE TECT I SODERHAMN AB [SE SE]; Stickvigen 3. S- (European patent). SN '(API patent). SU. TD (OAPI 826 00 Soderhamn patent). TG (OAPI patent), US.
(72) Inventor: and Inventor/Applicant (for LS onlh KRANTZ. Anders [SE Published SE]; HembygdsvAgen 2, S-826 06 S6derala Wijh international search report.
In English translation (filed in Swedish.
(74) Agent: AWAPATENT AB; Box 53. S-826 01 S6derhamn
(SE).
633553 (54)Title: LIGHT FITTING INCLUDING FILTER ELEMENTS -1
I
(57) Abstract A light fitting in the form of a casing which comprises a frame portion defining an opening to a cavity in the casing and which has one or more sockets (12) adapted to receive exchangeable light-producing members especially fluorescent tubes, inside the cavity. One or more connectors are provided inside the casing for connecting at least one exchangeable air filter tube (15) which can be arranged in the cavity and which has at least one air-permeable wall for cleaning the conducted therethrough.
IL_ I LIGHT FITTING INCLUDING FILTER ELEMENTS Brief description of the inventive idea The present invention relates to a light fitting in the form of a casing which comprises a frame portion defining an opening to a cavity in the casing and which has one or more sockets adapted to receive exchangeable light-producing members, especially fluorescent tubes, inside the cavity, said fitting comprising at least one air filter for cleaning the air conducted therethrough.
Description of prior art DE-A-2,428,568 discloses a light fitting of this type, in which the filter consists of a layer of filter medium fitted into the lower edge of an annular slit formed between an outer and an inner screen which together enclose and define the inner cavity of the fitting. It is not apparent from the specification whether the filter nmcdum layer is exchangeable or not, but because of its position mounting and dismounting said layer would clearly require much time and effort.
Summary of the invention The object of the present invention is to make it possible to exchange, in a simple and convenient manner, the filter or filters used in said fitting. According to the invention, this is achieved in that the filter is a tube with at least one airpermeable wall, and that one or more holes are provided in inner walls of the frame portion of said casing so as to allow air to be passed into or out of one or more filter tubes which, like the light-producing members, are mounted inside said cavity.
Thus, the filter tubes are easily accessible and can be exchanged in same manner as the fluorescent tubes or lamps in the fitting, a procedure with which the user usually is well acquainted.
921119,p:\oper\gjn,air.res,l II~ -I WO 90/10830 PCT/SE90/00141 Brief description of the drawings In the drawings, FIG. 1 is a perspective view of a fitting according to the invention, seen obliquely from below, FIG. 2 is a cross-section of the fitting according to the invention, FIG. 3 is a part sectional top plan view of the fitting, and FIG. 4 is a longitudinal cross-section of an alternative embodiment of the fitting according to the invention.
Detailed description of a preferred embodiment of the invention The fitting shown in the drawings has the form of a casing which in its entirety is designated 1 and which, in the embodiment shown in Figs. 1-3, comprises a frame portion generally designated 2 and a bottom generally designated 3. Together with the bottom 3, the frame portion 2, which in the embodiment in Figs. 1-3 is rectangular, defines a cavity 4 which has a downwardly facing opening Both the frame portion 2 and the bottom 3 have interior and exterior walls 6, 7 and 8, 9, respectively. Together with a flat, frame-shaped wall 10, these interior and exterior walls 6, 7, 8 and 9 define a gap 11 common to both the frame portion and the bottom. Sockets 12 are disposed adjacent to the interior walls 6' forming the end walls of the cavity 4 and are adapted to receive light-producing members in the form of fluorescent tubes 13. In actual practice, both the sockets 12 and the fluorescent tubes 13 may be entirely conventional. Furthermore, holes 14 are Y-e- St er- i 7o p cS kt-e yM .s arranged in the end walls 6' and serve toiconz®ut filter tubes 15. To be more precise, each end wall 6' comprises two holes, so that two filter tubes can be inserted in the cavity 4. In actual practice, the filter tubes 15 may advantageously be of the type described in SE 8505171-2 and comprising a cylindrical, air-permeable wall consisting of creased and stiff paper. The tube is open at its two oppooppo WO 90/10830 PCT/SE90/00141 3 site ends, and strips 16 are attached to each of the tube openings and extend into the tube.
As is best seen in Fig. 2, the centre axes of the holes 14 adapted to-' g: tk filter tubes 15 are located farther inwardly from the opening 5 of the frame portion than are the sockets 12 for the fluorescent tubes 13.
Thus, the centre axes of the sockets 12 are situated in a plane separate from that of the centre axes of the holes 14. A screen, in its entirety designated 17 and separating the fluorescent tubes from the filter tubes, is arranged in the area between the holes 14 adapted to receive the filter tubes and the sockets 12 for the fluorescent tubes.
To be precise, the sockets are situated in the centre of the cavity, while the holes 14 are situated near to the long side edges of the cavity, such that the filter tubes will be located beside the screen for the fluorescent tubes. Advantag-ously, the screen 17 has the form of a downwardly open trough, the opening of which may be covered by d conventional grating 18 for light fittings. The 20 opening 5 to the filter tubes 15 may also advantageously be covered by a grating 19 concealing the filter tubes.
In the embodiment shown in Figs. 1-3, the filter tubes 15 serve as air supply devices for supplying cleaned supply air to the room where the fitting is mounted. For this purpose, an air supply line 20 runs to the fitting and is connected with an inlet 21 in the exterior wall 9 of the bottom 3. Another possibility is to connect such an air supply line with inlets 21' arranged in the exterior wall of the frame portion 2, as indicated by dash-dot lines in the Figures. In actual practice, one may, when manufacturing the fitting, arrange such inlets 21 in the exterior wall 9 of the bottom, as well as in the four exterior walls 8 of the frame portion 2, and then, in the final assembly, close those inlets that will not be used for connection with a line, e.g. by means of simple lid members.
WO 90/10830 PCT/SE90/00141 4 The air blown into the gap 11 through the line 20 is distributed in said gap and enters into the filter tubes through the opposite openings thereof, whereupon it is filtered through the walls of the filter tube, such that the air, when entering the room where the fitting is mounted, is free from contaminating particles, such as dust, grime and the like, of the type found in air entering, for instance, a room facing a busy street.
Although the screen 17 shown in Fig. 2 is made of a wall impermeable to air, it is also possible to use a perforated screen allowing air to pass into the space defined by said screen and circulate round the fluorescent tubes 13, so that no dust will adhere to and be burnt by said tubes. Naturally, particle-free air from the filter tubes 15 is circulated round the fluorescent tubes also if the screen is dispensed with. In actual practice, it is, however, advantageous to mount such a screen round the fluorescent tubes since the inside thereof may be provided with a light-reflecting layer.
The filter tubes in the fitting may, of course, also serve as air exhaust devices for evacuating spent air from the room below. In this case, the direction of the air flow is simply reversed, such that air is sucked out of the gap 11 through a line 20 serving as evacuation line.
Fig. 4 illustrates an embodiment serving as air exhaust device in which the cavity 4' of the casing 1' is, by means of two partitions 22, 22', divided into three chambers 23, 24 and 25, the first of which contains one single filter tube 15'. The chamber 23 containing the filter tube 15' is covered from one end to another by an air-permeable plate 26, air-pemeable gratings 27 being arranged at the c"C'e\O I-S openings to theeatiets 24, 25. Thus, exhaust air from the room below is sucked in via the gratings 27, through the filter tube 15', and is finally sucked out of the chamber 23 through the line 20' serving as outlet. In the embodiment shown in Fig. 4, one or more fluorescent tubes 13' are intended to be mounted in separate partitioned-off M- II- -r- WO 90/10830 PCT/SE90/O0141 spaces in the casing, on both sides of the chambers 23-25 which are in line with one another.
In actual practice, the filter tubes 15 may be mounted and held in a very simple manner, in that their end walls are provided with flexible sealing rings, e.g. of rubber, which are compressed when the filter tube is inserted from below, between the two opposite end walls 6', such that said rings are sealingly applied against the end walls. Thus, the filter tubes become easily accessible and can readily be exchanged.
Modifications of the invention It goes without saying that the invention is not restricted to the embodiment described above and shown in the drawings. For example, it is possible to dispense with the bottom 3 and have only the frame portion 2 in the form of a double-jacketed casing, in which case holes 21' for the air lines can be arranged only in the frame portion.
Furthermore, the fitting may be adapted for other lightproducing elements than fluorescent tubes, e.g. light bulbs, and the number of light-producing members therein may vary considerably. In the same way, the number of filter tubes may vary materially within the scope of the invention. Also, other filter tubes than those open at its opposite ends may naturally be used. As is apparent from Fig. 2, the embodiment shown is adapted to be countersunk in a ceiling or in a wall. Naturally, the fitting may also be arranged on the outside, such that the bottom or the frame portion is applied against the ceiling or the wall.
It should be pointed out that the geometrical shape of the casing need not be rectangular, but may for instance just as well be circular, polygonal or triangular.
06.~ -I -r-I I I ;L~

Claims (8)

1. A light fitting in the form of a casing which comprises a frame portion defining an opening to a cavity in said casing and which has one or more sockets adapted to receive exchangeable light-producing members. especially fluorescent tubes, inside the cavity, said fitting comprising at least one air filter for cleaning the air conducted therethrough, characterised in that said filter is a tube with at least one air-permeable wall, and that one or more holes are provided in inner walls of the frame portion of said casing so as to allow air to be passed into or out of one or more said filter tubes which, like the light-producing members, are mounted inside said cavity.
2. Light fitting as claimed in claim 1, characterised in that the frame portion has separate interior and exterior walls defining a gap, thus forming a double-jacketed casing.
3. Light fitting claimed in claim 2, characterised in that the casing comprises, in addition to the frame portion, a bottom at a distance from the opening, and that the frame portion and the bottom have separate interior and exterior walls defining a gap common to both the frame portion and the bottom, thus forming a double-jacketed casing.
4. Light fitting as claimed in any one of the preceding claims, characterised in that two spaced-apart said holes are provided and are adapted to jointly register with a filter tube which, in a manner known per se, is open at each of two opposite ends.
Light fitting as claimed in any one of claims 2-4, characterised in that inlet is arranged in the exterior wall of the frame portion and/or the bottom, and adapted to receive an air supply line by means of which air from outside can be supplied to the inside of the filter tube for passing out through the filter wall, said filler tube serving as an air supply device for introducing filtered supply air into the -)21 120,p:\oper\gj&,air.res.6 room where said fitting is mounted, more precisely via the opening in the casing.
6. Light fitting as claimed in any one of claims 2-4, characterised in that an outlet is arranged in the exterior wall of the frame portion and/or the bottom, and adapted to receive an air evacuation line by means of which filtered air, which has entered through the wall of the filter tube, can be evacuated via the gap.
7. Light fitting as claimed in any one of the preceding claims, characterised in that said holes are located farther inwardly from said opening of the frame portion than are the sockets for the light-producing members, such that said members are located in a plane separate from that of said holes.
8. Light fitting as claimed in any one of the preceding claims, characterised in that a screen separating the light-producing members from the filter tubes is disposed in the area between the connectors for the filter tubes and the sockets for the light-producing members. Dated this 19th day of November, 1992 AIRCHITECT I SODERHAMN AB By its Patent Attorneys Davies Collison Cave 921119p: 921119,p:\oper\gjrn air.res,7 C I I-II
AU52862/90A 1989-03-06 1990-03-01 Light fitting including filter elements Expired - Fee Related AU633553B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8900776 1989-03-06
SE8900776A SE468105B (en) 1989-03-06 1989-03-06 LIGHTING FITTINGS WITH HUGE INCLUDING FILTER TUBES

Publications (2)

Publication Number Publication Date
AU5286290A AU5286290A (en) 1990-10-09
AU633553B2 true AU633553B2 (en) 1993-02-04

Family

ID=20375248

Family Applications (1)

Application Number Title Priority Date Filing Date
AU52862/90A Expired - Fee Related AU633553B2 (en) 1989-03-06 1990-03-01 Light fitting including filter elements

Country Status (9)

Country Link
EP (1) EP0477179A1 (en)
JP (1) JPH04506129A (en)
KR (1) KR920701763A (en)
AU (1) AU633553B2 (en)
CA (1) CA2047701A1 (en)
FI (1) FI914197A0 (en)
NO (1) NO913485L (en)
SE (1) SE468105B (en)
WO (1) WO1990010830A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9211142U1 (en) * 1992-08-20 1992-12-17 "Schako" Metallwarenfabrik Ferdinand Schad Kg Zweigniederlassung Kolbingen, 7201 Kolbingen, De
DE59711016D1 (en) * 1996-04-30 2003-12-24 Schako Klima Luft Ventilation outlet
DE19617288C2 (en) * 1996-04-30 1999-04-29 Schako Metallwarenfabrik Source outlet

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428658A1 (en) * 1974-06-14 1976-01-02 Daut & Rietz Kg Spring contact socket with metal sleeve - has protruding terminal legs and is laterally crimped to form narrow contact slot

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104307A (en) * 1960-06-10 1963-09-17 Donald G Garofalow Combination filter, heater and light
US3715578A (en) * 1971-02-10 1973-02-06 American Air Filter Co Light and filter assembly for ceiling structure
DE2428568A1 (en) * 1974-06-14 1976-01-02 Erich O Riedel Lamp housing with integral air flow filtering construction - has internal fan system and filter pads at air intake and discharge openings
US4333750A (en) * 1981-02-20 1982-06-08 Helmus Martin C Filtration module with included illumination
EP0088567A1 (en) * 1982-03-05 1983-09-14 Thomas Michael Deszberg Combined lighting and ventilation device
DE3507808A1 (en) * 1985-03-01 1986-09-04 Herbst, Donald, Dipl.-Ing., 1000 Berlin Filter arrangement for supplying clean rooms

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428658A1 (en) * 1974-06-14 1976-01-02 Daut & Rietz Kg Spring contact socket with metal sleeve - has protruding terminal legs and is laterally crimped to form narrow contact slot

Also Published As

Publication number Publication date
SE468105B (en) 1992-11-02
WO1990010830A1 (en) 1990-09-20
SE8900776L (en) 1990-09-07
CA2047701A1 (en) 1990-09-07
JPH04506129A (en) 1992-10-22
EP0477179A1 (en) 1992-04-01
AU5286290A (en) 1990-10-09
FI914197A0 (en) 1991-09-05
NO913485D0 (en) 1991-09-05
NO913485L (en) 1991-10-31
KR920701763A (en) 1992-08-12
SE8900776D0 (en) 1989-03-06

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