EP3916312A1 - Cooling device and method for cooling a room - Google Patents

Abstract

Cooling device (10) for a room with an outer wall (12) in which a window (14) is arranged, with a heat-insulating window cladding (16) set up for attachment to the outer wall (12) and for sealingly closing a window opening (30) - At least one cooling element (36; 52) arranged in the sealed window opening (30) designed for cooling air from the room.

Description

The invention relates to a cooling device for cooling a room and a method for cooling a room.

Shutters, shutters, shutters or the like have been standard on various buildings for decades. Originally intended to protect window glazing, today there are mainly aesthetic reasons. In warmer regions, shutters also serve to protect against solar radiation to a certain extent.

The thermal insulation is of a passive nature, the shutters darken the room and are mainly operated manually.

Active air conditioning systems are usually integrated into the building at a later date, look dubious, are very expensive and offer no other advantages beyond their actual purpose. Furthermore, extensive work has to be carried out on the building for retrofitting, for example wall openings, laying cables and pipes, etc.

The invention is now based on the object of avoiding the disadvantages of the prior art and providing improved functions for window cladding, as well as improved cooling for living space.

This object is achieved by a cooling device for cooling a room according to claim 1 or a method for cooling a room according to claim 10.

The cooling device according to the invention for a room with an outer wall in which a window is arranged comprises a heat-insulating window cladding set up for attachment to the outer wall and for sealingly closing a window opening; and at least one cooling element arranged in the sealed window opening configured to cool air from the room.

In a cooling position, the window cladding is closed so that the window opening is sealed. In an open position, the window cladding is at least partially open. The cooling element can be arranged on an inside of the window cladding, then the cooling element is in the cooling position in the window opening. The cooling element can be arranged in the window opening, then the cooling element is always located in the window opening.

According to the invention, folding or sliding shutters or similar window coverings are equipped with climatic functions. These window claddings can be moved manually or automatically and, when closed, provide an airtight seal with the lintel, reveal and window sill. The shutters or the like are designed to be heat-insulating for insulating support.

The main effect here is the use of the windows in the building. Cooling via shutters or the like has the advantage that no additional openings through the masonry are required during installation. For cooling with the cooling device described, only the windows have to be opened when the shutters are closed at the same time. This creates a connection between the cooling and the interior, while maintaining insulation from the outside area.

At least part of the cooling device is located on the outside of the building in a visually appealing manner. Such a cooling system can be retrofitted at any time, with little effort and relatively inexpensively. The closed shutters provide an airtight seal with the appropriate locking frame and are optimally thermally insulated. This makes the air conditioning all the more effective because only the indoor air is circulated. This circulation can optionally be supported with appropriately installed fans. The shutters, shutters, etc. consequently create additional thermal insulation between the interior and exterior. As a result, the existing and open window can be used to air-condition the interior.

The cooling device can have a control for an automated window covering or an automated closing element such as, for example, folding shutters. The controller can have a central unit. This enables simultaneous and independent control of several shops at the appropriate temperatures and positions of the sun with one software. The control with an app can react to the current weather conditions or programmable times of the day and itself regulate the indoor climate in the event of personal absence. Using sensors, the shutters can be regulated according to the position of the sun, temperature, etc.

It can be provided that the window cladding has a closing frame for attachment to the outer wall and at least one closing element, which is movably arranged in the closing frame, for sealingly closing the window opening. The closing element can comprise one or more folding or sliding shutters or similar window coverings such as, for example, roller shutters.

It can further be provided that the cooling element is an evaporator element of compression cooling, a cooling element of cooling according to the vortex tube principle, a Peltier element and / or a cooling element of absorption cooling or adsorption cooling.

With compression cooling, the inside of the window cladding is lined with at least one cooling element, e.g. pipes, or other correspondingly large surfaces such as evaporator plates, in which the refrigerant is located, where it evaporates and the heat is extracted from the interior. Additional components such as compressor, condenser, expansion valve and / or dryer can be attached either outside, on or near the window cladding. Any component that emits heat directly or indirectly can be installed on the outside of the window cladding or masonry.

In the case of cooling with the vortex tube principle, compressed air is used and its attachment is similar to the compression cooling described above. The cooling effect is achieved as follows. A compressor unit for generating compressed air is located on the outside of the house wall or in the center of the inside, possibly also on the outside of the window shutter itself. The compressed air is introduced into the vortex tube and set in rotation there. The gas separates into a hot and a cold part if there are two different air outlets. The compressed air generation can be attached centrally or individually to the shutter. The cooled air can be used directly or indirectly: Direct means that the compressed air is fed into the room to be cooled. For air compensation, the cooling device comprises an air-permeable connection to the outside area. Indirect cooling lowers the temperature of a heat sink, whereby the cooled air can be returned to a compressor after flowing through the heat sink. The cold air portion can after the flow through the first heat sink in a second or released to the outside air. This variant is also very effective, due to the closed circuit and the circulating air cooling of the room, no air compensation is necessary and the efficiency can be higher.

When cooling with Peltier elements, they generate a lower temperature on their inside than in the room while consuming electrical energy. With suitable heat dissipation on the outside of the Peltier elements, which are coupled to the outside of the window shutters, the efficiency of these elements can be sufficient and bring about a noticeable drop in temperature. This variant can be installed particularly well in shutters, since nothing has to be attached apart from the shutter assembly, a power supply and an optional fan. Furthermore, such a variant is characterized by only a few components and is almost maintenance-free.

In the case of absorption cooling or adsorption cooling, thermally driven refrigeration systems are used; they receive the necessary energy for cooling through the use of heat. In a special case, the outside of the shutters can be heated by solar heat or a weather-independent heating system (electrical, gas, waste heat) and initiate the respective specific cycle. Here, too, it can be provided that system components with higher temperatures are accommodated on the outside of the shutters or on the outside of the building. Cold-generating components are located on the inside of the shutters, thermally insulated from the outside area. Ideally, the use of ambient heat or solar energy is advantageous. Air conditioning is often required in buildings, especially when there is high solar radiation.

It can be provided that one or more further components of the cooling device such as a compressor, a condenser, an expansion valve, a fan, a compressed air generator and / or a dryer are arranged on the closing element. As described above, these are system components with higher temperatures, which are advantageously arranged on the outside of the window cladding or the closing element such as a shutter.

It can also be provided that one or more further components of the cooling device such as a compressor, a condenser, an expansion valve, a fan, a compressed air generator and / or a dryer can be arranged on the outer wall and / or on the closure frame and that a fluid connection or compressed air connection between the at least one cooling element and the one or more consists of several other components. The cooling medium is circulated between the individual components of the cooling device via the fluid connection / compressed air connection. In this way, too, components with emissions, such as heat or noise, can be kept out of the interior or removed.

It can be provided that a circulating element is set up to circulate the internal air of the room in order to generate an air flow on the cooling element. In this way, a targeted air flow to the cooling element can be implemented, which can improve the cooling of the room, for example can make it more uniform and / or accelerate it.

It can also be provided that several window cladding and cooling elements are provided for several windows and that the one or more further components have a fluid connection / compressed air connection to the several cooling elements for several windows. This central supply with the fluid / air and / or also energy can be arranged centrally at a suitable location in the building and thus simultaneously supply several or all cooling elements and / or further components of the cooling device.

It can be provided that the window cladding has a protective element designed to protect against solar radiation, an insulating element designed for soundproofing and / or manually operated or driven slats for an air inlet. The cooling device can thus keep other immissions such as sunlight and associated heat or noise away from the interior space or attenuate them. Furthermore, the cooling device can comprise an air inlet for supplying fresh air. The air inlet can, for example, be a pressure equalization in the form of an inlet of cooled air in the case of cooling according to the vortex tube principle.

It can also be provided that the cooling device, preferably the window cladding, has lighting on the inside. The lighting can be provided directly on a component of the cooling device or also in the window opening. Closed shutters prevent daylight from entering the room and usually require electrical light to be switched on. The inside of the closed shutters can be lined with appropriate light sources that allow individual lighting through the window or even simulate daylight. A daylight simulation can, for example, support the photosynthesis process of plants in the room. Furthermore, a Ambient lighting with changeable colors of, for example, LED light can be provided. In conjunction with the cooling device, warm components of the lighting system can be attached to the outside of the window cladding and insulated from the interior. Thus, the efficiency of the cooling device is not impaired, since a possible development of heat is not released into the interior. The energy supply for this lighting, as well as other electrical consumers on the shutters, can be obtained and ensured with the help of solar cells. The solar cells are arranged on the sunny side of the window shutters or around the window and store electrical energy in an accumulator. This energy storage supports the electrical consumers when the sun's rays decrease. Alternatively, the lighting can be fed directly from the solar cells without an energy storage device.

A method according to the invention for cooling a room with an outer wall in which a window is arranged comprises the steps of
Sealing a window opening with a window trim;
Supplying the indoor air of the room to the sealed window opening; and
Cooling the air flow at the window opening.

Sealing can be done automatically or manually, preferably with the window cladding of the cooling device described above. The indoor air of the room can be supplied by an air flow that is caused by the temperature difference of the cooled air. In addition, the circulation of the indoor air can be supported, for example, by means of a blower or fan. Otherwise, the same advantages and modifications as described above apply.

Further preferred refinements of the invention result from the other features mentioned in the subclaims.

The various embodiments of the invention mentioned in this application can be advantageously combined with one another, unless stated otherwise in the individual case.

Figur 1

eine Außenansicht einer Kühlvorrichtung an einer Außenwand mit Fenster;

Figur 2

eine seitliche Schnittdarstellung von Figur 1;

Figur 3

eine Innenansicht einer Fensterverkleidung;

Figur 4

eine seitliche Schnittdarstellung von Figur 3;

Figur 5

eine Außenansicht einer Fensterverkleidung mit Kompressor;

Figur 6

eine seitliche Schnittdarstellung von Figur 5;

Figur 7

eine Außenansicht einer Fensterverkleidung mit Peltierelement; und

Figur 8

eine seitliche Schnittdarstellung von Figur 7.

The invention is explained below in exemplary embodiments with reference to the accompanying drawings. Show it:

Figure 1

an external view of a cooling device on an outer wall with a window;

Figure 2

a side sectional view of Figure 1 ;

Figure 3

an interior view of a window trim;

Figure 4

a side sectional view of Figure 3 ;

Figure 5

an exterior view of a window covering with a compressor;

Figure 6

a side sectional view of Figure 5 ;

Figure 7

an exterior view of a window cladding with a Peltier element; and

Figure 8

a side sectional view of Figure 7 .

Figure 1 shows a cooling device 10 for a room with an outer wall 12 in which a window 14 is arranged. The cooling device 10 comprises a heat-insulating window cladding 16 which is fastened to the outer wall 12 and is provided for sealingly closing a window opening or a window reveal in the outer wall 12. When the window cladding 16 is closed, the window opening is sealed airtight, so that no air circulation between the interior space and the surroundings on the outer wall 12 is possible.

The window cladding 16 here comprises a closure frame 18 for attachment to the outer wall 12 and at least one closure element 20, which is movably arranged in the closure frame 18, for sealingly closing the window opening. In this example, two closing elements 20 are provided in the form of folding shutters.

At least one cooling element is arranged in the sealed window opening and is designed to cool air from the room. In Figure 1 If the internal cooling element is not shown, it is described with reference to the following figures.

A compressor unit 22 of the cooling device 10 is fastened to the outer wall 12 in the vicinity of the window 14. In this example it is a compressor unit 22 of a compression cooling or a vortex tube cooling.

In the case of compression cooling, the compressor unit 22 comprises a compressor 24 and a condenser, that is to say condenser. In the case of vortex tube cooling, the Compressor unit 22 a vortex tube 24. One or more further components of the cooling device 10 such as an expansion valve, a fan, a compressed air generator and / or a dryer can be arranged on an outside of the closing element 20 and / or on the outside wall 12.

The terms inside and outside refer to the interior. Elements located in the interior or facing the interior are referred to by the term interior. Elements located outside the interior or facing away from the interior are referred to by the term exterior.

Figure 2 FIG. 11 shows a sectional side view of FIG Figure 1 , in which the window 14 is tilted so that the cooling device 10 can be active and an exchange of air to the interior is guaranteed. The cooling device 10 closes the window opening 30 airtight with the closing element 20 and the closing frame 18 as well as an optional seal 28. Thus, when the device is closed, no or very limited air exchange and heat transport between the interior 32 and the outside area are possible. When the window 14 is tilted, the air in the interior 32 can now circulate along the cooling device 10, where it is cooled. In this way, the air of the interior 32 can be cooled.

Together with the insulation or thermal insulation 34 on the shutter or closing element 20, an optimal separation between the external environment and the internal space in front of the window 14 is achieved. The thermal insulation 34 can also serve as sound insulation.

The activation of the cooling device 10 now leads to a cooling of the evaporator or heat sink 36 located on the inner side of the closing elements 20. The opened window 14 enables an exchange of air to the interior 32, which is optionally supported by one or more fans 38 or other circulating elements can.

Two covers 40 on the inside and / or outside of the closing elements 20 protect the components and can be designed in a visually appealing manner. All components are carried by the closing element 20. The covers 40 can form channels or circulation paths for the air to be cooled in the interior 32. These channels or circulation paths can be routed along the evaporator or heat sink 36.

The cooling capacity of the system can be regulated; a wide variety of sensors can be used for this purpose. The sensors can be present both in the interior 32 and in the exterior.

Furthermore, an illumination 42 is provided on the inside of the closing element 20, which can illuminate the darkened interior 32.

Figure 3 shows an interior view of a window cladding 16 with a closing element 20. Upper and lower lighting 42 is provided.

On a lower side of the closing element 20, air inlets 44 (or also air outlets) are provided, which are connected to a fan 38 behind the cover 40 via a channel or circulation path. Two such channels or circulation paths are provided, on both sides of the evaporator 36. The two channels or circulation paths can be separate from one another or form a common channel or circulation path. In any case, this creates an air flow behind the evaporator 36 in order to cool the internal air supplied.

Figure 4 FIG. 13 shows a side sectional view of the closing element 20 from FIG Figure 3 . Above and below, the seal 28 is shown, which can be provided circumferentially or partially circumferentially. The profile of the seal 28 can be adapted to a profile of the closure frame 18 and / or the window reveal.

On the outside, the closing element 20 is completely or almost completely covered with the thermal insulation 34, which can be covered by a cover 40. Flat illuminations 42 are provided inside, which can simulate daylight, for example.

Behind the evaporator 36, that is to say inside the closing element 20, there is a channel or circulation path 46 in which air is circulated by one or more fans 38. The air flowing past from the interior space 32 is cooled at the evaporator 36. A feed line from the evaporator 36 to the compressor unit 22 arranged on the outside is not shown. The feed line can for example run through a hinge of the closing element 20 so that the feed line is not subjected to any movements.

Figure 5 FIG. 11 shows an external view of a closing element 20 of a window cladding with an integrated compressor unit 22.

The compressor unit 22 is not accommodated here on the window or in the center, but rather sits directly on the outside of the closing element 20. The inside of the closing element 20 is basically constructed in the same way. There is insulation between the components. With this design, no external connections between the cooling and compressor units are necessary and the entire system is more compact.

The compressor unit 22 comprises a condenser 26 and can comprise a fan, which draws in ambient air via air inlets 44 and generates an air flow over the condenser 26. Reverse air circulation is also possible.

Figure 6 FIG. 11 shows a sectional side view of FIG Figure 5 . In the upper part is in Figure 5 The illustrated compressor unit 22 is shown, which is connected to the evaporator 36 by a supply line (not shown) running inside the closing element 20. The evaporator 36 is arranged on an inside of the closing element 20 facing the interior 32. The areas of the compressor unit 22 and the evaporator 36 are each covered with thermal insulation 34. The thermal insulation 34 of the compressor unit 22 is located on the inside of the closing element 20 and prevents the warm components of the cooling device 10, namely the compressor unit 22, from introducing heat Surroundings.

This structure enables very good insulation with a small thickness of the closing element 20, since the components of the cooling device 10 are arranged offset. For an optimized insulation or insulation, the two thermal insulation 34 can partially overlap.

Figure 7 shows an external view of a closing element 20 of a window cladding with a Peltier element. The actual Peltier element or elements are arranged on the inside or in the interior of the closing element 20 and are illustrated in FIG Figure 8 explained.

In the external view shown, a heat sink 50 is shown with two fans 48 for generating an air flow of ambient air along the heat sink 50. Radial or axial fans can be used which generate a flow along or between cooling fins of the heat sink 50.

Figure 8 FIG. 13 shows a side sectional view of the closing element 20 from FIG Figure 7 .

This variant is also attached and sealed like the compressor variants. One or more Peltier elements 52 are located within the closing element 20, each with the cold side facing inward. An inner heat sink 54, which is directed into the space between the window and the closing element 20, is fastened to this surface. The effectiveness of the cool side can be increased with fans 56, which generate a flow of the air from the interior over the inner heat sink 54.

The warm side of the Peltier elements 52 is provided with the outer heat sink 50, which is arranged on the outside of the closing element 20. Supported by fan 48, the heat is thus dissipated to the outside. Both sides are separated from one another by an insulation 58 which surrounds the Peltier elements 52.

During operation, the inner side of the Peltier elements 52 is cooled while consuming electrical energy, while the outer side is heated. The cooling device 10 can be regulated by activating the fans 48, 56 and the Peltier elements 52. A wide variety of sensor systems can also be used for this purpose.

A method of cooling a room 32 having an exterior wall 12 in which a window 14 is disposed may include the following steps.

First, the window opening 30 is sealed with a window lining 16. This can be done by manual or automatic closing of one or more closing elements 20 such as shutters. Ideally, the window opening 30 is then closed airtight or almost airtight.

Next, inside air of the room 32 is supplied to the sealed window opening 30. For this purpose, a natural air flow, which is gradually established as the indoor air is heated, can be used. One or more circulating elements, such as fans, can be used to support an air flow.

The air flow or the interior air flowing past the window opening 30 and thus a cooling element is then cooled. As a result of the circulation of the air, this leads to a cooling of the entire interior 32.

The cooling device presented here for a room with an outer wall in which a window is arranged, or the method for cooling a room, allow efficient cooling of the room with simple retrofitting without further wall openings. Contrary to its original purpose, the existing window is cleverly used for the cooling device.

Claims (10)

Cooling device (10) for a room with an outer wall (12) in which a window (14) is arranged - A heat-insulating window cladding (16) set up for attachment to the outer wall (12) and for sealingly closing a window opening (30); - At least one cooling element (36; 52) arranged in the sealed window opening (30) designed to cool air from the room. Cooling device (10) according to claim 1, characterized in that the window cladding (16) has a closing frame (18) for attachment to the outer wall (12) and at least one closing element (20) movably arranged in the closing frame (18) for sealingly closing the window opening (30). Cooling device (10) according to one of the preceding claims, characterized in that the cooling element (36; 52) is an evaporator element of compression cooling, a cooling body (36) of cooling according to the vortex tube principle, a Peltier element (52) and / or a cooling element of absorption cooling or Adsorption cooling is. Cooling device (10) according to claim 2 and 3, characterized in that one or more further components of the cooling device (10) such as a compressor (24), a condenser (26), an expansion valve, a fan, a compressed air generator and / or a dryer are arranged on the closing element (20). Cooling device (10) according to one of claims 1 to 3, characterized in that one or more further components of the cooling device (10) such as a compressor (24), a condenser (26), an expansion valve, a fan, a compressed air generation and / or a dryer can be arranged on the outer wall (12) and / or on the closure frame (18) and that there is a fluid connection or compressed air connection between the at least one cooling element (36; 52) and the one or more further components. Cooling device (10) according to one of the preceding claims, characterized in that a circulating element (38, 56) is set up for circulating the Inside air of the space (32) is provided for generating an air flow on the cooling element (36; 52). Cooling device (10) according to claim 6, characterized in that several window linings and cooling elements are provided for several windows (14) and that the one or more further components have a fluid connection or compressed air connection to the several cooling elements for several windows (14). Cooling device (10) according to one of the preceding claims, characterized in that the window cladding (16) has a protective element designed to protect against solar radiation, an insulating element designed for soundproofing and / or manually operated or driven slats for an air inlet. Cooling device (10) according to one of the preceding claims, characterized in that the cooling device (10), preferably the window cladding (16) on the inside, has lighting (42). Method for cooling a room (32) with an outer wall (12) in which a window (14) is arranged, comprising the steps: Sealing a window opening (30) with a window trim (16); Supplying the inside air of the room (32) to the sealed window opening (30); and Cooling the air flow at the window opening (30).

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