DE2632669A1 - Room ventilation system for summer or winter - has collector box with thermostatically operated flap above double window - Google Patents

Abstract

The room ventilation system includes an air extraction tube (5) communicating with a collector box (4) mounted above a window (20) which is positioned inside a permanent double glazed window (1). Behind this is a blind. The height of the bottom of the fluid and inner window allow room air to travel up between them towards the extraction system at the top. Room air also passes between the ceiling lamp (6) towards the extraction system. Attached to the bottom of the collector box is a flap (3) operated by a stepping motor (10) which can be swung over the gap (9) between the windows or the gap (7) between the blind (2) and inner window (20) dependent on weather conditions. The motor can be operated by a remote room thermostat (13).

Description

PFENNING MAAS SEILER MEINIG LEMKE SPOTT

2632663

PATENT LAWYERS
BERLIN · MUNICH · AUGSBURG

Patent Attorneys ■ Oldenburgallee 10 ■ D 1000 Berlin 19

Your reference

Your message from Your letter of

Our reference

Me / Si

J. Pfenning, Dipl.-Ing ■ Berlin Dr. I. Maas. Dipl.-Chem. ■ Munich

H. Seiler, Dipl.-Ing. · Berlin

K. H. Meinig. Dipl.-Phys. · Berlin

J. M. Lemke, Dipl.-Ing. · Augsburg Dr G. Spott. Dipl.-Chem. ■ Munich

I BERLIN OFFICE: Oldenburgallee D 1000 Berlin 19

Phone:

030/304 55 21/304 55

Telegram address: Seilwehr patent

Berlin
Date

July 16, 1976

Company RIETH & SOHN

Iron structures factory

Saalmannstrasse 7, 1OOO Berlin 52

Ventilation window

The invention relates to a box-type ventilation window with two spaced apart Glazing units in which the space between the two glazing units is connected to an exhaust device is, which is preferably in connection with at least one ventilatable lighting unit.

In fully or partially air-conditioned rooms - such as offices

-2-

709883/0594

or the like - the exhaust air is preferably via an exhaust air system installed within a false ceiling The lighting fixtures installed in the ceiling are also used as exhaust openings. It is also not new to connect the windows to these exhaust systems, which are then referred to as exhaust air windows or climatic windows by adding the space between the two Glazing units forming a box window, for example, on the suction side with the exhaust air device installed in the ceiling communicates. In fully air-conditioned rooms, the outer glazing unit is usually a non-openable insulating glazing, while the inner glazing unit is, for example, a simple frame window, a light metal window or the like can be more.

Between the two glazing units, the air in the lower area is sucked in via air slots and flows through in the continuous flow the ventilation window to in the upper area via the pipe system of the exhaust air device, which also is connected to the lighting units in the ceiling, to be discharged.

Such exhaust or air conditioning windows have proven themselves and are therefore enjoying growing demand because it is herewith is possible to change the heating output of the rooms concerned

709883/0594

to reduce about 50% or more and the general well-being of the people in such rooms to improve despite the otherwise usual radiators in the window area.

However, the known ventilation windows have a disadvantage nor that the amount of exhaust air sucked in via the ventilation windows on the one hand and the lighting units on the other is not controllable, but rather is divided roughly in half, which means that in every season, so too in winter, the heat given off by the lighting units does not benefit the air-conditioned room, but rather directly is sucked off.

This is where the present invention comes in, which is based on the object of the ventilation window and the lighting fixture Flowing exhaust air depending on the thermal room load in an optimal quantity ratio in each case to be able to pretend.

This object is achieved according to the invention achieved that in the flow direction of the exhaust air behind the ventilation window and the lighting unit or units a temperature-dependent actuated, the exhaust air flow over

70 9 8 83/0 594

2S32S63

the ventilation window and / or the air control flap controlling the lighting unit is provided.

This makes it possible to completely switch off the exhaust air flow via the lighting fixtures in winter operation and to supply the heat from the lighting fixtures to the room as an additional heat source, while in summer operation this unwanted heat can then be extracted directly via the exhaust air device.

The exhaust air regulation via the ventilation window is particularly advantageous when on the room side in front of the inner glazing unit of the box window lying a roller blind or the like light protection is provided and the Gap between the inner glazing unit and the roller blind on the head side also with the exhaust air device communicates. In this case, the air control flap can be arranged so that the exhaust air flow at Winter operation exclusively through the space between the outer glazing unit and the inner glazing unit is performed, during the summer operation both via the lighting fixtures and via the space in between between the inner glazing unit and the one in the distance

9883/0594

flows in front of this lying blind? around here through the Absorption of the light on the side of the roller blind facing away from the room to continuously dissipate the heat generated.

Advantageous refinements and developments of the present ventilation window can be found in the subclaims. The accompanying drawings serve as a possible embodiment, for further understanding and explanation of the present invention. Show it:

FIG. 1 shows an echematic longitudinal section through a preferred one Embodiment of an inventive Ventilation window during summer operation,

FIG. 2 shows a representation according to FIG. 1 during winter operation,

FIG. 3 shows a sectional view corresponding to FIG. 1 and of the upper section of the ventilation window in FIG Connection to the exhaust system to which the Ventilation window is connectable.

According to the schematic representation of the ventilation window According to Figures 1 and 2, this consists of an outer glazing unit 1, such as insulating glazing, which is fixed

703883/0594

is connected to the masonry 18 and an inner one Glazing unit 20, such as a light metal window. Both glazing units form a box window, which is below the window sill, not shown, via air slots 21 with the interior in connection stands. At the head end, the space between the two glazing units 1, 20 with an exhaust device is above a duct 22 installed within a false ceiling 19. Via an exhaust pipe 5, the exhaust air extracted from the room. Lighting fixtures 6 are provided within the suspended ceiling 19, which are designed so that exhaust air can also be sucked through them in the direction of arrow 8.

To control the exhaust air flow in the direction of the arrow over the lighting fixture 6 on the one hand and the exhaust air flow in the direction of arrow 9 across the space between the glazing units 1 and 20 is below a suction box 4, which is in communication with the exhaust pipe 5, an air control flap 3 is provided, which in its two end positions either the exhaust air flow over the lighting fixture 6 or the exhaust air flow over the Completely releases or prevents ventilation window.

-7-

709883/0594

On the room side in front of the inner glazing unit 20, a roller blind 2 is provided Interspace in the direction of arrow 7 can direct an exhaust air stream to the suction box 4 when the air control flap 3 is in the position shown in Figure 1. The position of the suction flap 3 can be by means of a servomotor 10 in connection with a room thermostat 13 - as in the following in more detail will be explained with Figure 3.

Figure 1 shows the summer operation of the ventilation window, in which the exhaust air flow both in the direction of arrow 8 over the lighting fixture 6 as well as in the direction of the arrow 7 between the inner glazing unit and the lowered one Roller blind 2 is guided to the suction box 4 and from there via the exhaust pipe 5. The servomotor 10 has turned the air control flap 3 to the right in the illustration so that the space between the two glazing units 1, 20 of the ventilation window completely remains closed against the exhaust device. The solar radiation falling through the ventilation window, which on the room-side outer surface of the roller blind 2 falls and thus

-8-709883 / 0594

AO

for heating in this area, is exactly like that produced by the lighting fixture 6 and In the event of high outside temperatures, unwanted heat is dissipated immediately without putting any thermal load on the room itself.

During winter operation, however, or when the room is to be heated, the air control flap 3 is over brought the servomotor 10 into the position shown in Figure 2, in which the suction box 4 against the suction space above the lighting fixture 6 and the space between the inner glazing unit 20 and the possibly lowered one Roller blind 2 is sealed and only has a suction connection to the space between the outer glazing unit 1 and the inner glazing unit 20 via the channel 22. In weather and temperature conditions, the one between high outside temperatures, ie the summer operation according to FIG. 1, and relatively low outside temperatures as in winter operation according to Figure 2, any intermediate position of the air control flap 3 is conceivable, whereby there are correspondingly percentage suction quantities distributed over the flow paths described. As a parameter for controlling the proportions, in addition to the

-9-

7 0 9883/0594

Room temperature and the outside air temperature also the indoor air humidity and the intensity of the incidence of solar radiation be included.

In addition, it should also be mentioned that the roller blind 2 or the like sun protection is not, as in the exemplary embodiment shown, must be arranged on the room side in front of the inner glazing unit 20, it is also possible, for example, this in the space between the two glazing units 1, 20 or outside - that is, on the room side behind the outer one Glazing unit 1 - to be fixed, in the latter case then on the suction of the air between the sun protection and the outer glazing unit can be dispensed with.

Figure 3 shows the control of the air control flap 3 or the servomotor 10 via a room thermostat 13. The The position of the air control flap 3 is selected here so that exhaust air flows both over the lighting fixture 6 in Direction of arrow 8 and 17 as well as over the space between the glazing units of the ventilation window in the direction of arrow 9 and finally between the inner glazing unit 20 and the roller blind 2 in quantitative proportions be guided by the position of the

709883/0594

Vf-

Air control flap 3 are determined. The air control flap 3 is - as shown - between the 2 * suction openings for the luminaire exhaust air, the ventilation window exhaust air and the blind exhaust air that the above-described reciprocal

is

Dosing of the air quantities is possible. For this / the air control flap 3 pivotable between the suction-side channel 22 of the ventilation window and the bypass or suction channel hinged for the rear ventilation of the roller blind 2, the suction channel 23 at the same time as the rear-ventilated space the lighting fixture 6 is connected.

According to FIG. 3, the thermostat 13 also controls a second servomotor 16 with an associated regulating flap inside a room air box 15 which is connected to the air-conditioned room via line 14. The regulating flap of the servomotor 16 either closes the pipeline 11 or the pipeline 12 or it stops both pipes open in the position shown.

-11-

709883/0594

Claims (3)

-KL CLAIMS 1. Ventilation window in the manner of a box window with two spaced apart glazing units, in which the space between the two glazing units is connected to an exhaust device, preferably with at least one ventilated lighting fixture communicates, thereby characterized in that in the direction of flow of the exhaust air behind the ventilation window (1, 20) and the or the lighting fixtures (6) a temperature-dependent actuatable air control flap controlling the exhaust air flow via the ventilation window and / or the lighting fixture (3) has taken place. 2. Ventilation window according to claim 1, characterized in that the air control flap (3) with a room thermostat (13) controllable servomotor (10) is connected. 3. Ventilation window according to claim 1 and 2, characterized in that the air control flap (3) can be pivoted between the outlet opening of the suction channel (22) for the ventilation window, the suction channel (23) for the 709883/0594 -12- Ventilated roller blind and the suction opening for the lighting fixture (6), these alternately in their End positions is arranged closing. 709883/0594 j