EP0003725B1 - Fenêtre à double vitrage, aérée dans le sens de la longueur et avec un store à l'intérieur - Google Patents

Fenêtre à double vitrage, aérée dans le sens de la longueur et avec un store à l'intérieur Download PDF

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Publication number
EP0003725B1
EP0003725B1 EP19780100758 EP78100758A EP0003725B1 EP 0003725 B1 EP0003725 B1 EP 0003725B1 EP 19780100758 EP19780100758 EP 19780100758 EP 78100758 A EP78100758 A EP 78100758A EP 0003725 B1 EP0003725 B1 EP 0003725B1
Authority
EP
European Patent Office
Prior art keywords
sun
glazing
blind
sun blind
interior
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
EP19780100758
Other languages
German (de)
English (en)
Other versions
EP0003725A1 (fr
Inventor
Hans Schmidlin
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.)
Eltreva AG
Original Assignee
Eltreva AG
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Filing date
Publication date
Application filed by Eltreva AG filed Critical Eltreva AG
Publication of EP0003725A1 publication Critical patent/EP0003725A1/fr
Application granted granted Critical
Publication of EP0003725B1 publication Critical patent/EP0003725B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/264—Combinations of lamellar blinds with roller shutters, screen windows, windows, or double panes; Lamellar blinds with special devices

Definitions

  • the invention relates to a longitudinally ventilated double-glazed window with internal blinds, which has on its outside of the weather a glazing designed as a single glass, which forms an exhaust air duct with an internal glazing arranged at a distance from it inside the room and also designed as a single glass, with the sun blinds being provided on the inside of the room.
  • Such a device has become known from DE-A-23 31 332.
  • either warm air from the room to be air-conditioned or air from an independent ventilation system should be introduced into the exhaust air duct via slot openings in such a way that a relatively thin film of air flows from the bottom upwards over the inner surface of the outer glazing, while the remaining air in the exhaust air duct flows through the Air film should be set in motion to flow past the outside of the inner glazing in a slightly turbulent flow. This is intended to achieve the highest possible heat-insulating effect. Glare protection is to be achieved by using reflection glasses for the outer and inner glazing or through the sun blinds.
  • the distance between the outer and inner glazing - as in the other known devices - is approximately 200 mm.
  • the amount of fresh air required for the windows generally results in approximately 50 to 100 m 3 of air per hour and meter of window width.
  • no defined air flows are obtained in the relatively wide exhaust air duct. Rather, the air introduced into the exhaust air duct swirls in an uncontrolled manner. This is disadvantageous with regard to the condensation to be prevented under all circumstances on the inside of the outer glazing and with regard to the heat energy to be removed from the exhaust air duct in summer.
  • the US-A-2 874 61 1 and 2874612 already show sun blinds which have horizontally extending profiles on their outer surface facing the weather outside, which are approximately triangular in cross-section.
  • the strip-shaped areas of each triangular profile lying at the top are provided with a reflective layer, while the respectively lower strip-shaped areas are transparent. This is intended to reflect directly incident sunlight towards the outside of the weather, while indirect light can enter the interior through the transparent strip areas.
  • the invention has for its object to improve the device described above so that condensation on the inside of the outer glazing is prevented with certainty and the air conditioning of the room can be improved.
  • This object is achieved according to the invention in that the distance between the outer and inner glazing is reduced so that a defined, largely laminar air flow is established in the exhaust air duct and that the sun blind has horizontally extending profiles on its outer surface facing the outside of the weather, the steeper incident sun rays largely reflect to the outside of the weather, and that the sun blind between the profiles is provided with a light-absorbing and strip-shaped selective coating, which is arranged so that it is only exposed to sun rays when the sun is low and causes extensive absorption of the sun rays and heating of the sun blind.
  • the optimal distance between the exterior and interior glazing is calculated taking into account the lowest exterior temperature to be expected in winter, the desired relative air humidity in the interior, the desired interior temperature, the air volume provided, the heat transfer from the interior to the exterior, and the desired surface temperature the sun blind in winter, the desired or required air volume in the interior and taking into account the location and the orientation of the room to be air-conditioned (climate of the country, orientation of the building facade, e.g. to the south or north, etc.).
  • a defined, largely laminar air flow (the turbulent limit flow on the walls of the exhaust air duct can be disregarded here).
  • This laminar air flow greatly reduces the energy loss in the air in winter.
  • a defined temperature profile is obtained from the outside of the weather to the inside of the outer glazing and, in conjunction with the increased flow rate, can thereby reliably prevent condensation on the inside of the outer glazing.
  • the sun blind can also be designed so that the flatly incident sun rays are largely absorbed in the sun blind and the portion of the sun radiation reflected by the sun blind largely in the glazing, and that the exhaust air duct is followed by a heat exchanger for heating a separate air stream.
  • the sun blind is heated up strongly and thus serves to heat the interior.
  • the glazing and, as a result, the exhaust air conducted between it are heated.
  • the warm exhaust air can then be passed through a heat exchanger in order to heat another air flow, which is then supplied to rooms that are not, for example, in the area of solar radiation.
  • the air in the room to be air-conditioned can be circulated in a closed circuit, for example bypassing the above-mentioned heat exchanger or a refrigeration machine, so that heat is given off to the outside of the weather in the exhaust air duct.
  • it can be expedient to increase the distance between the inner glazing and the outer glazing in order to achieve a reduction in the air flow velocity and thereby an increased heat emission towards the outside of the weather.
  • the distance between the inner glazing and the outer glazing could also be adjusted as a function of the heating of the interior to be air-conditioned as a result of the lighting being switched on.
  • transparent, ie no colored glasses are used for the glazing. This is intended to minimize the use of artificial light sources.
  • the sun blinds must be designed in such a way that a certain amount of visible radiation is always let through to illuminate the interior to be air-conditioned. It is essential, however, that this illumination does not occur through direct light, but only through diffuse light.
  • the surface profiles of the sun blind can in principle correspond to the curved lamellae which are shown and described in DE-A 25 22 154.
  • the cross-sectional contour of these slats corresponds to a curve or an arc, which are designed so that all flat incident and reflected rays impinge on the adjacent slat.
  • the directly incident solar energy is absorbed in the case of flat solar radiation, but also the solar energy reflected on the individual slats. This results in an increased heating of the sun blind, which can be desirable for example in winter or in principle in cold areas.
  • the arrangement of the lamellae explained above can be such that, in the case of steeper rays of the sun (position of the sun in summer), the sun's rays are largely reflected towards the outside of the weather, but if the rays of the sun fall more flat (position of the sun in winter), the above-described absorption takes place.
  • the desired effects can be further enhanced, for example, by mirroring the respective surfaces of the glazing.
  • the application of the invention is not limited to air-conditioned rooms, but can also be carried out analogously for ventilated rooms.
  • a room 1 to be ventilated or to be air-conditioned has, on its weather outside, an outer glazing 2 designed as single glazing, which forms an exhaust air duct 4 with an inner glazing 3 arranged at a distance from it inside the room and also designed as single glazing.
  • the distance between the outer and inner glazing 2 or 3, which determines the width of this exhaust air duct 4, is designated by a.
  • the sun rays 8 which fall in a correspondingly flat manner at a low position of the sun can impinge directly on the strip-shaped area 9, or are largely reflected by the profiles 6 on this strip-shaped area 9. Because of the selective coating provided here, a correspondingly increased absorption and thus a heating of the sun blind 5 results in the strip-shaped areas 9, which can be used to heat the room 1.
  • the distance a between the outer glazing 2 and the inner glazing 3 is dimensioned such that a defined, largely laminar air flow 10 is established in the exhaust air duct 4.
  • FIG. 2 The exemplary embodiment shown in FIG. 2 is rotated by 180 ° in relation to the illustration in FIG. 1, so that in FIG. 2 the weather outside is on the left.
  • the exhaust air duct 4 is followed by a heat exchanger 11, in which a separate air stream 12 is heated.
  • This separate air flow 12 can be used, for example, to heat other rooms that are not in the area of solar radiation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Blinds (AREA)

Claims (4)

1. Fenêtre à double vitrage ventilée longitudinalement avec jalousie intérieure, qui comprend, du côté exposé à l'air extérieur, un vitrage extérieur (2) formé d'une vitre simple, qui constitue un canal de ventilation (4) avec un vitrage intérieur (3), également formé d'une vitre simple et agencé à une certaine distance du vitrage extérieur vers l'intérieur du local, la jalousie (5) étant prévue du côté intérieur du vitrage intérieur (3) qui est tourné vers l'intérieur du local, caractérisée en ce que la distance (a) entre le vitrage extérieur (2) et le vitrage intérieur (3) est restreinte au point qu'il se forme un flax d'air défini sensiblement laminaire (10) dans le canal de ventilation (4), la jalousie (5) comprend, sur sa face extérieure tournée vers le côté exposé à l'air extérieur, des profilés horizontaux (6) qui réfléchissent sensiblement vers le côté exposé à l'air extérieur les rayons solaires (7) en incidence relativement haute et la jalousie (5) est munie, entre les profilés (6), d'un revêtement sélectif (9) en forme de bande absorbant la lumière qui est agencé de façon à n'être atteint par les rayons solaires (8) que lorsque le soleil est bas et à provoquer une absorption sensible des rayons solaires (8) et un échauffement de la jalousie (5).
2. Fenêtre à double vitrage suivant la revendication 1, caractérisée en ce que la jalousie (5) a une conformation telle que les rayons solaires (7) en incidence haute qu'elle réfléchit sont absorbés dans une mesure aussi grande que possible par les vitrages (2, 3) et une machine frigorifique, pour laquelle l'air de ventilation sert de milieu de travail, est montée à l'aval du canal de ventilation (4).
3. Fenêtre à double vitrage suivant la revendication 1, caractérisée en ce que la jalousie (5) a une conformation telle que les rayons solaires (8) en incidence basse sont absorbés dans une grande mesure par la jalousie (5) et la fraction des rayons solaires réfléchie par la jalousie (5) est absorbée dans une grande mesure par les vitrages (2, 3) et un échangeur de chaleur (11) est monté à l'aval du canal de ventilation (4) pour chauffer un flux d'air distinct (12).
4. Fenêtre à double vitrage suivant l'une quelconque des revendications précédentes, caractérisée en ce que la distance (a) du vitrage intérieur (3) jusqu'au vitrage extérieur (2) est réglable.
EP19780100758 1978-02-22 1978-08-28 Fenêtre à double vitrage, aérée dans le sens de la longueur et avec un store à l'intérieur Expired EP0003725B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782807421 DE2807421A1 (de) 1978-02-22 1978-02-22 Einrichtung zur klimatisierung eines geschlossenen raumes
DE2807421 1978-02-22

Publications (2)

Publication Number Publication Date
EP0003725A1 EP0003725A1 (fr) 1979-09-05
EP0003725B1 true EP0003725B1 (fr) 1980-12-10

Family

ID=6032557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780100758 Expired EP0003725B1 (fr) 1978-02-22 1978-08-28 Fenêtre à double vitrage, aérée dans le sens de la longueur et avec un store à l'intérieur

Country Status (2)

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EP (1) EP0003725B1 (fr)
DE (1) DE2807421A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442933A1 (fr) * 1978-06-12 1980-06-27 Bfg Glassgroup Enceinte limitee par une ou plusieurs parois dont une partie au moins transmet le rayonnement lumineux
DE2915329C2 (de) * 1979-04-14 1983-11-10 Ernst Josef 5562 Wallscheid Meeth Kastenfenster mit einem Absorber für Sonnenstrahlen
DE3227899A1 (de) * 1982-07-26 1984-01-26 Ernst Dipl.-Ing. 3584 Zwesten Träbing Bau- und/oder betriebsweise zur verbesserung der energienutzung
GB9710034D0 (en) * 1997-05-16 1997-07-09 Secretary Trade Ind Brit Roller blind or curtain
DE19849006C2 (de) * 1998-04-01 2003-08-21 Pax Ag Verfahren zur Zufuhr von Außenluft aus dem Freien durch ein Fenster in einen zwangsbelüfteten Raum und Fenster dazu

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874611A (en) * 1954-08-13 1959-02-24 Luboshez Sergius N Ferris Combined heat reflector and light transmitter structure
US2874612A (en) * 1956-03-09 1959-02-24 Luboshez Sergius N Ferris Thermal insulator
FR1233709A (fr) * 1958-05-31 1960-10-12 Eberspaecher J Verres anti-éblouissants
CH441190A (de) * 1965-07-16 1967-08-15 Talium Ag Verfahren zur Verbesserung der Beleuchtungsverhältnisse in Räumen mit Tageslichteinfall und Einrichtung zur Durchführung dieses Verfahrens
CH475469A (de) * 1967-07-04 1969-07-15 Sulzer Ag Wandteil
US3684352A (en) * 1971-01-11 1972-08-15 Sergius N Ferris Luboshez Radiochromic combined absorbing reflecting and transmitting structure
CH567653A5 (fr) * 1973-06-01 1975-10-15 Kicon Ag
DE2522154C3 (de) * 1975-05-17 1979-05-03 Eltreva Ag, Aesch (Schweiz) Sonnenkollektor-Segment
DE2615379A1 (de) * 1976-04-08 1977-10-27 Christian Bartenbach Abschirmung fuer lichtoeffnungen, fenster und dergleichen
DE2640231C2 (de) * 1976-09-07 1978-09-07 Katsuyuki Fukuoka Akiyoshi (Japan) Filtervorrichtung
DE2702214A1 (de) * 1977-01-20 1978-07-27 Egon Koslowski Verbundfenster

Also Published As

Publication number Publication date
DE2807421A1 (de) 1979-08-23
EP0003725A1 (fr) 1979-09-05

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