Louvered window with electric drive

Abstract

Louvered window (4) with an outer frame in which a plurality of superimposed louvers are rotatably mounted horizontally and all louvers are connected to each other by an adjustment mechanism such that they can be moved together from a closed position to an open position and back, wherein in the closed position all louvers form a closed surface on an outer surface (5) of a building (1), from which they can be pivoted out by the adjustment mechanism, wherein the adjustment mechanism is driven by an electric motor (9), wherein sensors (7, 8) are installed both inside the space (2) in which the louvered window(s) (4) are located and on the outer surface (5) of the building (1) in question, which are electrically connected to a common control unit (10) via which the electric motors (9) are controlled, characterized in thatthat the louvers of the louvered windows (4) each consist of a glass pane whose optical properties can be changed by applying an electrical voltage, the change in optical properties being carried out by the control device (10).

Description

[0001] The invention relates to a louvre window with an outer frame in which a plurality of louvres arranged one above the other are rotatably mounted horizontally, and all louvres are connected to one another by an adjustment mechanism in such a way that they can be moved jointly from a closed position to an open position and back again. In the closed position, all louvres form a closed surface on the outside of the building, from which they can be pivoted by the adjustment mechanism, the adjustment mechanism being driven by an electric motor. Sensors are mounted both inside the room in which the louvre window(s) are located and on the outside of the building in question, which sensors are electrically connected to a common control device via which the electric motors are controlled.

[0002] Such a louvre window is already known. EP 1 101 896 A2, for example, describes a louvre window that has an electric motor for adjusting the louvres. This motor serves, for example, to automatically open and close the louvre window via the actuation of a switch.

[0003] The utility model DE 84 17 444 U1 discloses a device for attachment to windows and doors to improve the climate in living spaces, wherein devices are provided in particular for measuring the air temperature and air humidity, wherein the measuring devices are arranged in a common housing with a connection to a power source and with a microprocessor which records the measured air temperature and air humidity values ​​and constantly calculates the comfort coordinates from the air temperature and relative air humidity, wherein electrical warning lights are arranged on the housing, of which at least one warning light is provided for the indication HEATING, at least a second warning light for the indication VENTILATION, at least a third warning light for the indication COOLING and at least a fourth warning light is provided for the indication that a tolerable pollutant density, such as CO2, in the room air has been exceeded.

[0004] The utility model DE 20 2004 018 979 U1 discloses a device for a controllable privacy and sun protection comprising panes of glass or plastic which reflect heat radiation and are largely transparent to visible light, wherein the cell arrangement of the controllable privacy and sun protection consists of electrochromic and / or electrically conductive and / or transparent layers and that individual or several layers of the cell arrangement are designed as electrically insulated, mechanical-optical gratings.

[0005] US 2007 / 0210737 A1 discloses a window with an outer frame and an adjustment mechanism driven by an electric motor. It can also be a louvre window, with sensors mounted both inside the room containing the louvre window and on the outside of the building in question. These sensors are electrically connected to a common control device, which controls the electric motor. If a device for heating and / or air conditioning the room is present, it is possible that this device is supported by the control device.

[0006] The object of the present invention is to design the automatic operability of a louvre window in such a way that the desired room climate is generated as extensively as possible, whereby this should also be possible in situations of use in non-temperate latitudes and / or in strong solar radiation.

[0007] This object is achieved by a louvre window having the features of claim 1.

[0008] The invention is explained in more detail using embodiments which are shown in the drawing, which shows a plan view of a room in a building with the arrangement of the individual facilities.

[0009] In a room 2 within a building 1, there are several window openings 3, which are arranged on two opposite outer sides 5 of the building 1. In each of the two opposite window openings 3, a louvre window 4 is installed, while any further window openings are provided with a normal, conventional window (not shown). On the outer side 5 of the building 1 in question, in the area of ​​the respective window openings 3 or the louvre windows 4, temperature sensors 7 are installed. These temperature sensors, like the temperature sensor 8 installed on the inner side 6 in room 2, are connected to a common control device 10. The control device 10 is set to measure the current room temperature, taking into account the desired room temperature and the time of day, and then to check the outside temperature on the two outer sides of the building.If it is assumed that, for example, the temperature measurement on one outside side 5 results in a lower value than on the opposite outside side 5 and this temperature is below the current room temperature, then the control device 10 causes the louvre window 4 on the side of the building with the lower temperature to open, whereupon the interior temperature is adjusted to the outside temperature by the electric motor 9 of the relevant louvre window 4 being supplied with power by the control device 10. If the outside temperature changes during the course of the day due to solar radiation, the opposite can also occur, i.e. the side of the building that was previously exposed to a higher temperature now has a lower temperature, whereupon the control device 10 causes the previously closed louvre window 4 to open.

[0010] This example should first explain the basic concept of the invention. It is intended to demonstrate one possible way of configuring the control device 10 to fulfill the described task.

[0011] The control device 10 connected to the electric motors 9 must be adjusted accordingly, taking into account a variety of factors. These include: geographical location, location of the building, location of the room within the building, season, desired room temperature depending on the time of day, installation location of the louvre windows 4, orientation of the exterior walls of room 2 according to the cardinal directions, etc.

[0012] The exemplary embodiment described so far makes it clear that the use described so far may only be achievable under optimal conditions, even in temperate latitudes. However, it is also conceivable to achieve the described room climate in rooms that are additionally equipped with a device (not shown) for heating (heating) or cooling (air conditioning) room 2. In such a case, the invention can have an additional effect by first attempting to achieve the desired room temperature in the manner described and, if this is not entirely possible, only assisting the device for heating or cooling room 2 in doing so.For this purpose, the temperature sensor (not shown) provided for the heating and / or air conditioning system, which is mounted on the outside 5 and / or inside 6 of the room 2 and electrically connected to the heating and / or air conditioning system, can be used by disconnecting it from the heating and / or air conditioning system and instead connecting the electrical connection cable to the control device 10. To initially prevent the heating and / or air conditioning system from becoming active, the control device 10 generates a signal corresponding to a temperature value, which prevents the heating and / or air conditioning system from becoming active. The control device 10 then attempts to achieve the desired room climate in the manner already described. If this value is not reached after a predetermined time, the control device 10 generates a corresponding signal for the heating and / or air conditioning system, only then does it become active.This signal corresponds to the temperature value from the temperature sensor 8 mounted on the outside 5 and / or inside 6 of the room 2.

[0013] In addition to temperature sensors, sensors that respond to air movement can also be used. This makes it possible to exchange the air in the interior by opening and closing the louvre windows 4 accordingly. Sensors that respond to air pressure are mounted on the opposite outer sides 5. Different air pressure values ​​cause the control device 10, for example, to open the louvre window 4 on the outer side 5 with the higher air pressure more widely and the opposite louvre window 4 less widely. If there is no air pressure difference, the room can also be ventilated by a fan, which is controlled by the control device 10 as needed.

[0014] Humidity can also be measured using appropriately designed sensors, whereby the measurement result can in turn trigger a corresponding control of the louvre windows 4. The sensors, regardless of their type, are regularly queried for their values ​​by the control device 10.

[0015] It is already known to provide glass panes with a special, possibly invisible, coating that changes the optical properties (e.g., transparent or darkened) of the glass pane by applying an electrical voltage. The control of such treated glass panes in louvre windows as part of the heating or cooling of the air in the interior 2 can also be carried out by the appropriately adjusted control device 10. For example, in the case of strong sunlight on one outer side 5, the respective louvre window 4 can be darkened, while opening the other louvre window 4 allows the cooler air on the opposite outer side 5 to enter the room 2.

[0016] To switch the control device 10 on and off and to enter desired temperature values, it is electrically connected to an operating device 11, either directly or indirectly in the form of a remote control. The operating device 11 also allows the time at which the control device automatically becomes effective.

[0017] Provided that the outer frames of the louvre windows are thermally insulated, i.e., that they consist either of wood or of two metal profiles connected by thermally insulating webs, the sensors 7 and 8 can also be attached to the frame of the louvre window 4. Sensor 7 is located on the side of the louvre window 4 facing the outside 5, and sensor 8 is located on the side facing the inside 6. This simplifies the wiring of the sensors and the electric motors 9 for connection to the control device 10.

[0018] Until now, it has been assumed that the movement of the slats of the louvre window 4 is achieved by electric motors 9 according to the cited prior art. However, the invention is also applicable to louvre windows in which the movement is achieved hydraulically or by compressed air. In this case, the movement is also controlled by the control device 10, which initiates the opening and closing of the relevant valves for opening and closing the louvre window 4.

[0019] The invention can be applied to all types of rooms, although the presence of opposing louvre windows 4 is not necessarily required. Rather, it is also conceivable for rooms 2 in which the outer sides 5 with the louvre windows 4 are at an angle to each other. Room 2 can be located in a residential building, an office building, or even a high-rise building. It is also conceivable to control several rooms with louvre windows 4 in a building with a common control device 10.

Claims

[1] Louvre window (4) with an outer frame in which a plurality of louvres arranged one above the other are rotatably mounted horizontally and all louvres are connected to one another by an adjusting mechanism in such a way that they can be moved jointly from a closed position to an open position and back again, wherein in the closed position all louvres form a closed surface on an outer side (5) of the building (1), from which they can be pivoted by the adjusting mechanism, wherein the adjusting mechanism is driven by an electric motor (9), wherein sensors (7, 8) are mounted both inside the room (2) in which the louvre window(s) (4) are located and on the outer side (5) of the building (1) in question, which sensors are electrically connected to a common control device (10) via which the electric motors (9) are controlled, characterized bythat the slats of the louvre windows (4) each consist of a glass pane whose optical properties can be changed by applying an electrical voltage, the change in the optical properties being carried out by the control device (10). [2] Louvre window (4) according to claim 1, characterized by that the sensors (7, 8) are designed as temperature sensors. [3] Louvre window (4) according to one of claims 1 or 2, characterized by that the control device (10) is designed such that a desired room temperature can be set by opening or closing the louvre windows (4) inside the room (2). [4] Louvre window (4) according to one of claims 1 to 3, characterized by that if there is a device for heating and / or air conditioning the room (2), this device is supported by the control device (10). [5] Louvre window (4) according to claim 4, characterized bythat an existing temperature sensor connected to the heating and / or cooling device is separated from it and instead connected to the control device (10). [6] Louvre window (4) according to one of claims 1 to 5, characterized by that additional sensors are provided to determine the air pressure. [7] Louvre window (4) according to one of claims 1 to 5, characterized by that additional sensors are provided to determine the humidity. [8] Louvre window (4) according to one of claims 1 to 7, characterized by that the sensors (7, 8) are attached to the louvre windows (4). [9] Louvre window (4) according to one of claims 1 to 8, characterized by that an operating device (11) is connected to the control device (10). [10] Louvre window (4) according to one of claims 1 to 9, characterized bythat several rooms (2) within the building (1) are served by the common control device (10).

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