EP2410117B1 - Ventilator with rotating cylinder - Google Patents

Description

The present invention relates to a ventilation device for a building, in particular a ventilation device for installation in a facade of a building, in particular for use in high-rise buildings. Conventionally, windows and air conditioners and the like are used to ventilate homes. Built in window or door frame openable and closable ventilation slots are also known.

In this case, inward-opening window sash have a relatively large amount of space, while openable and closable ventilation slots allow only a limited flow of air and can not produce the desired by an open window contact with the external environment.

JP 2005 344 424 A discloses a ventilating window having a ventilation unit that can be provided for each window.

EP 1 081 444 A2 discloses a ventilation device in which a longitudinal axis lies in the plane of a partition wall.

The object of the invention is therefore to provide a compact ventilation element that does not require additional space in the interior of a building to open, such as an inwardly openable window sash, and also releases the highest possible ventilation cross-section.

This object is achieved by a ventilation device having the features of claim 1. Advantageous developments of the invention are defined in the dependent claims.

• einem Paar Rahmenelemente, die in einem Abstand voneinander angeordnet sind, um in einem durch den Abstand definierten Zwischenraum einen freien Durchtritt von einer Gebäudeinnenseite zu einer Gebäudeaußenseite zu bilden,
• einem Drehzylinder, der in dem Zwischenraum angeordnet ist und in einer geschlossenen Stellung den Durchtritt im wesentlichen vollständig abdichtet und in einer geöffneten Stellung den Durchtritt im wesentlichen vollständig freigibt, wobei zwischen der geschlossenen und der geöffneten Stellung beliebige Zwischenstellungen möglich sind, die den Durchtritt teilweise freigeben,
• wobei in der geschlossenen Stellung eine Abdichtung des Drehzylinders zumindest an jedem der beiden Rahmenelemente vorgesehen ist, wobei die Abdichtung den Drehzylinder an seiner Mantelfläche sowie an seinen beiden Stirnseiten mittels einer Dichtung abdichtet, die ein Paar länglicher Abschnitte und ein Paar kreisbogenförmiger Abschnitte aufweist, um eine umlaufende vollständige Abdichtung zu schaffen.

In one aspect, a ventilation device for a building is available which is particularly suitable for installation in facades of high-rise buildings, with:

• a pair of frame members spaced apart to form a free passage from a building interior to a building exterior in a space defined by the spacing;
• a rotary cylinder, which is arranged in the intermediate space and substantially completely seals the passage in a closed position and substantially fully releases the passage in an open position, wherein any intermediate positions are possible between the closed and the open position, which partially release the passage .
• wherein in the closed position, a seal of the rotary cylinder is provided at least on each of the two frame members, the seal seals the rotary cylinder on its lateral surface and on its two end faces by means of a seal having a pair of elongated portions and a pair of circular arc-shaped portions to a to create circumferential complete seal.

Here, a free passage is to be understood as meaning a direct ventilation cross-section, which creates a direct and straight-line connection between an inside and outside of the building or the ventilation device. It should therefore be provided no deflections or ventilation grille or the like, which impede or limit an air flow. By a complete seal is meant a seal over a closed circumference of the releasable opening between the rotary cylinder and the frame, without there being any areas in which no seal is provided, i. Areas that allow in a closed state of the ventilation device in particular a direct connection between the outside and inside.

By providing a free passage from the inside of the building to the exterior of the building according to the invention, the persons in the building are given a natural sense of space, that is, the temperature, sounds, odors, etc. of the external environment are transmitted to the interior of the building. This type of ventilation thus creates a free space atmosphere that is much more pleasant compared to typical indoor atmospheres.

In particular, in unpleasant interior odors perceived as unpleasant odors, which may for example come from carpet floor adhesives, etc., significantly reduced, and it will be pleasant odors from the outside the building introduced.

On the other hand, a complete seal of the rotary cylinder between the frame members can be provided by providing a seal which completely seals the entire circumference of the releasable opening, that is, not only the lateral surface of the rotary cylinder, but also its end faces against the elements of the frame. This is particularly important during the heating season to ensure that no cold drafts emanating from the ventilation and valuable heating energy escapes to the outside.

Preferably, a drainage is provided between the at least two seals of the rotary cylinder, which form at least a respective outer and outer sealing plane, which is preferably arranged in the low point of the rotary cylinder and is arranged for example on a front side of the rotary cylinder to an installation of the ventilation device in the allow substantially vertical axis of rotation of the rotary cylinder or distributed over the length of the rotary cylinder at the lowest point of the circumference of the rotary cylinder in a substantially horizontal installation.

More preferably, a ratio of passage cross section to the total cross section of the ventilation device is greater than 0.5, preferably greater than 0.6.

Furthermore, by the ventilation device, for example, adjacent to a glazing, is installed substantially vertically or horizontally, a space requirement for the ventilation device is very small. In addition, a passage cross section in relation to the total cross section of the ventilation device can be dimensioned very large, that is, for example, greater than 0.5 or greater than 0.6 free ventilation cross section in relation to the total cross section of the ventilation device.

Preferably, the rotary cylinder has a pair of elongated elements, the one Having a cross section substantially in the form of a circular portion and are connected together at their axial ends, preferably by circular discs, and / or the frame members of the pair of frame members have an elongated shape and are interconnected at their ends, preferably by a circular closure element.

The closed cross section of the circular section with its straight chord has the advantage over other ventilation openings of the prior art that in the fully opened state, a free opening is created, which is bounded on all sides by smooth surfaces. This has a positive effect on the achievable aerodynamic cross section in relation to the installation dimension, whereby the smooth surfaces are easy to clean and look very good visually.

In addition, as the rotary cylinder is constituted by a pair of elongated elements which are connected at their axial ends by circular discs and the frame members are also elongate in shape and are also connected at their ends to a circular sealing element, a seal can be made in a circular gap between them circular discs and the circular closure elements are arranged to provide a complete seal on the front side of the rotary cylinder here. Further, by having this gasket disposed in the circular gap having a circular arc shape corresponding to the circular gap, and this circular arc portion of the gasket being connected to elongated gasket portions, the elongated gasket portions sealing a lateral surface of the rotary cylinder relative to the frame members, an excellent circumferential full seal is provided by the gasket. This seal is preferably formed in one piece. Thus, such a seal has two elongated portions for sealing the lateral surface of the rotary cylinder and two circular arc-shaped portions for sealing the annulus between the circular disc and the circular end member.

Preferably, the seal seals the rotary cylinder on its lateral surface as well At its two end faces, ie it is provided a complete seal of the entire circumference of the releasable vent opening along the lateral surface of the rotary cylinder, so that no sealless column remain. This seal is also provided at least twice, ie at least in two planes, an outer plane on the outer side frame profile and an inner level on the room-side frame profile.

More preferably, at least one seal is provided which seals a gap between the lateral surface of the rotary cylinder and the frame member and / or a gap between the circular end member and the circular disc, wherein the seal is preferably formed integrally and a pair of elongated portions for sealing the lateral surface of the rotary cylinder and a pair of circular arc-shaped portions for sealing the circular disc.

Preferably, the seal is made of a permanently elastic elastomer, such as e.g. Silicone, EPDM, TPE, butyl rubber or rubber, preferably by extrusion.

More preferably, a motor is provided on an end face of the rotary cylinder, which is preferably fastened with its housing to the closure element and wherein a drive shaft of the motor, the rotary cylinder, preferably the disc, directly drives.

Preferably, a motor controller for controlling the motor is provided with a central processing unit that can control a plurality of motors of a plurality of ventilation devices, wherein preferably a standby circuit is provided which supplies power to the central processing unit only by activating a power supply when driving commands are pending ,

Preferably, a contact strip is provided which can send a signal to the engine control when pressure is applied to stop the engine, wherein the Contact strip is preferably arranged in the region of the gap between the lateral surface of the rotary cylinder and the frame member. Alternatively, instead of Kontaktleise also another safety device such as photocell, proximity sensor, motion detector or the like can be used.

• Figur 1 zeigt eine erfindungsgemäße Lüftungsvorrichtung in einer vollständig geöffneten Stellung des Drehzylinders.
• Figur 2 zeigt die Lüftungsvorrichtung von Figur 1 in einer nur teilweise geöffneten Stellung des Drehzylinders.
• Figur 3 zeigt die Lüftungsvorrichtung von Figur 1 in der vollständig geschlossenen Stellung des Drehzylinders.
• Figur 4 zeigt eine Abwandlung der Lüftungsvorrichtung von Figur 1.
• Figur 5 zeigt eine weitere Abwandlung der Lüftungsvorrichtung von Figur 1.
• Die Figuren 6 und 7 zeigen die Lüftungsvorrichtung von Figur 1, wenn diese in die Fassade eines Gebäudes eingebaut ist.
• Figur 8 zeigt einen Längsschnitt durch die Lüftungsvorrichtung von Figur 5, wenn diese in senkrechter Stellung in die Fassade eines Gebäudes eingebaut ist.
• Figur 9 zeigt ein Blockschaltbild einer Motorsteuerung zum Steuern des automatischen Öffnens und Schließens der Lüftungsvorrichtung gemäß der Erfindung.
• Figur 10 zeigt einen Detailansicht der Dichtung zum Abdichten des Drehzylinders gegenüber den Rahmenelementen sowie zum Abdichten des kreisringförmigen Spalts zwischen den kreisförmigen Scheiben und den kreisförmigen Abschlußelementen.
• Figur 11 zeigt die Dichtung von Figur 10 von der anderen Seite aus gesehen.
• Figur 12 zeigt Querschnittsformen der Dichtung aus Figur 10.

The invention will now be described with reference to preferred embodiments with reference to the accompanying drawings.

• FIG. 1 shows a ventilation device according to the invention in a fully open position of the rotary cylinder.
• FIG. 2 shows the ventilation device of FIG. 1 in an only partially open position of the rotary cylinder.
• FIG. 3 shows the ventilation device of FIG. 1 in the fully closed position of the rotary cylinder.
• FIG. 4 shows a modification of the ventilation device of FIG. 1 ,
• FIG. 5 shows a further modification of the ventilation device of FIG. 1 ,
• The FIGS. 6 and 7 show the ventilation device of FIG. 1 when installed in the facade of a building.
• FIG. 8 shows a longitudinal section through the ventilation device of FIG. 5 when installed in a vertical position in the façade of a building.
• FIG. 9 shows a block diagram of a motor controller for controlling the automatic opening and closing of the ventilation device according to the invention.
• FIG. 10 shows a detailed view of the seal for sealing the rotary cylinder to the frame members and to seal the annular gap between the circular discs and the circular termination members.
• FIG. 11 shows the seal of FIG. 10 seen from the other side.
• FIG. 12 shows cross-sectional shapes of the seal FIG. 10 ,

As in the cross-sectional views of FIGS. 1 to 7 and the longitudinal sectional view of FIG. 8 is shown, a rotary cylinder is formed as a movable element of the ventilation device by a pair of elongated elements 3, 4, which have the shape of a circular section in cross section. These circular section elements 3, 4 are rotatably mounted about their (not shown) center around in a pair of frame members 1, 1 which are installed in a building facade fixed. By turning the elongated elements 3, 4 in the form of a circular section, a ventilation cross-section can either be fully or partially opened or completely closed, as in FIGS FIGS. 1 to 3 is shown. In the fully open position of FIG. 1 are rectilinear inner sides of the elongated elements 3, 4 substantially flush with inner sides of the frame members 1, 1, so that a substantially smooth free passage cross-section between the frame members 1, 1 is provided. ln the in FIG. 2 shown rotational position of the rotary cylinder, the passage cross-section is partially restricted by the rotary cylinder. Finally, the passage cross section in the in FIG. 3 shown position of the rotary cylinder completely closed and sealed by the seal 5.

The seal 5 is in this closed position with in FIG. 10 and 11 shown elongated sealing portions 5b in a gap between the elongated elements 3, 4 of the rotary cylinder and the frame members 1, 1 arranged to seal between the elongated elements 3, 4 and the frame members 1, 1. In order to seal beyond an end face of the rotary cylinder, the seal 5 has arcuate sections 5a on (see FIG. 10 and 11 ) disposed in a circular gap between circular discs 11, 13 and circular end members 12, 14, as in FIG FIG. 8 is shown.

This seal 5 is preferably formed in one piece and thus has a pair of elongated portions 5b and a pair of circular arcuate portions 5a. The elongated elements 3, 4 of the rotary cylinder are connected at their end faces on the circular discs 11, 13, preferably screwed. Thus, the rotary cylinder is constituted by the pair of elongated members 3, 4 having the circular section shape and the circular disks 11, 13. Further, the frame members 1, 1 connected at their ends by means of the circular end members 12, 14 with each other, preferably also screwed.

The circular discs 11, 13 and the annular end members 12, 14 are preferably of such a shape that radially outer peripheral surfaces of the circular discs 11, 13 face radially inner peripheral surfaces of the circular end members 12, 14 to intervene in a circular annular gap therebetween to arrange both surfaces of the seal 5 and its arcuate portion 5a. In this way, a complete and well sealed seal on a front side of the rotary cylinder is provided in a simple manner.

The frame elements 1 are preferably formed from two parts, a room-side component 1 a and an outside component 1 b. Between these there is a so-called thermal insulation level 6 consisting of plastic strips and, depending on requirements, additional filling of the resulting chambers with insulating material. Depending on the design, however, the frame elements 1 can also be formed in one piece.

Between the room-side component 1 a and the outside component of the frame member 1, a thermal insulation 6 is preferably arranged. As a result, the outer side member 1 b of the frame member 1 is thermally decoupled from the room-side component 1 a of the frame member 1, that is, there is an excellent insulation between the components 1 a and 1 b created.

The ventilation device is preferably installed in a vertical position, that is with a vertical axis of rotation of the rotary cylinder in a building facade. In this case, the ventilation device can have a very large length of one to two meters or more. In order to ensure sufficient stability at long lengths, moreover, an intermediate wall 8 between the elongated elements 3, 4 are arranged, as in FIGS. 4 and 5 is shown, which is also connected to the circular discs 11, 13, as shown in FIG FIG. 8 is shown.

Moreover, struts 10 for connecting the elongate elements 3, 4 in a transverse direction may be arranged as shown in FIG FIG. 5 and FIG. 8 is shown. Depending on the length of a strut 10 or a plurality of struts 10 can be arranged at a predetermined distance along the axis of rotation of the rotary cylinder.

In order to further improve a sealing of the rotary cylinder to the frame members 1,1, the frame members may be further provided at their inner periphery with an additional seal 9, as in FIG. 4 is shown. This additional seal preferably engages with the intermediate wall. 8

Preferably, the rotary cylinder is driven by an automatic drive, for example in the form of an electric motor. To ensure safety in this case, further preferably a contact strip 7 is arranged, as in FIG. 2 is shown, which can interrupt a power supply to an electric motor, if pressure is applied to the contact strip 7.

Preferably, a motor is arranged with its electric motor 15 and an associated gear 16 on the end face of the rotary cylinder, as in FIG. 8 is shown. In this case, the gear 16 is attached to the circular end element 12, preferably screwed. A drive shaft 17 is preferably mounted on the circular end member 12 via a radial bearing 18, such as a rolling bearing or sliding bearing or the like, and is fixedly connected to the circular disc 11 to drive the drive shaft 17 via the electric motor 15 and the transmission 16th to put the circular disc 11 in rotation. Thus, the rotary cylinder can be rotated via the motor 15, 16 to open and close the ventilation or to establish an intermediate position, as in the FIGS. 1 to 3 is shown.

In FIG. 9 a block diagram of a control for the electric motor 15 is shown. This control includes a power supply that converts a 230 volts mains AC voltage into a 24 volts DC or 36 volts DC or the like, with a central processing unit (CPU) and various peripheral modules can be operated. On the basis of input signals generated by, for example, sensors or the like, output signals are supplied to a motor output stage via the CPU, which operate the electric motor 15 to open and close the ventilation devices.

In order to minimize power consumption of the control device, this is in a standby circuit, that is, a so-called stand-by circuit, operated in which the power supply and thus CPU, motor power electronics (power amplifier) and other peripheral modules are turned off and are turned on only when driving commands sent to the controller. That is, when receiving drive commands, the power supply is activated, thus powering up the CPU to process the drive commands accordingly and provide output signals to the motor output stage. Thereafter, the CPU and power supply are turned off again, that is, the controller is returned to stand-by mode.

Preferably, the ventilation device shown and described with their 1.1 frame elements installed as a frame in a mullion-transom system of a building facade. The ventilation device described is characterized in particular by a large free cross section in relation to their installation requirements. This free cross-section A _F has, as in Fig. 6 and 7 is shown, in relation to an overall cross-section of the ventilation device A _G, a ratio of at least 0.5, more preferably greater than 0.6.

Thus, the persons in a building are given a natural feeling of freedom, whereby noises, smells, temperatures and the like of an external environment of the building are introduced into the building. In this way, the persons in the building are given a very natural feeling of freedom.

In addition, the ventilation device according to the invention hardly disturbs the appearance of a building due to the small footprint, that is, the ventilation devices are hardly visible due to their small size in relation to the ventilation cross-section or fall into the eye of a viewer.

Furthermore, a sealing of the ventilation device is given during the heating period with a low U-value, that is low heat losses, because at least one pair of seals between the outside and inside of the ventilation device is arranged between which at least one static air cushion is formed. Due to the two-part shape of the frame members 1.1 with the room-side component 1 a and the outside component 1b is an installation in a building facade very easy.

Further, in the area between the two seals, drainage with a downward gradient is preferably arranged outwardly, as is shown in FIG FIG. 8 is shown. The bevel 20 at the vertical underlying circular end member 12 can drain into the venting device penetrated water to the outside.

The partition 8 of the FIGS. 4 and 5 also serves to improve the thermal insulation. By dividing the resulting in the closed position chamber into a plurality of sub-chambers through the intermediate wall 8 convection and radiation between the outside and raumseitigem elongated profile element 3.4 of the rotary cylinder is reduced, thus significantly improving the thermal insulation. Optional low-emissivity coatings on the baffle 8 and / or the straight sides of the elongated elements 3,4 can further enhance thermal protection. In addition, these surfaces can be covered with special insulating layers, ie layers of a material with very low thermal conductivity and low-emitting surfaces. As a result, the thermal insulation of the entire component can be further optimized.

The large ventilation cross-section makes the ventilation device very interesting, in particular for those applications in which a smoke extraction is required, because always certain minimum ventilation cross sections are prescribed here, which often can not be achieved with conventional wing constructions.

LIST OF REFERENCE NUMBERS

1

frame element

1 a

room-side component of the frame element

1 b

outside component of the frame member

3

first elongated element of the rotary cylinder

4

second elongated element of the rotary cylinder

5

poetry

5a

arcuate section of the seal

5b

elongated section of the seal

6

thermal insulation

7

contact strip

8th

partition

9

additional seal

10

strut

11

circular disk

12

circular closure element

13

circular disk

14

circular closure element

15

electric motor

16

transmission

17

drive shaft

18

radial bearings

Claims (15)

1. A ventilation device for a building, in particular to be installed in facades of high-rise buildings, comprising:

   a pair of frame elements (1, 1) arranged at a distance from each other to form a free passage from a building inside to a building outside in a clearance defined by the distance,

   a rotating cylinder arranged in the clearance and sealing the passage in a closed position and opening up the passage in an opened position, wherein arbitrary intermediate positions are possible between the closed and opened positions, which open up the passage partially,

   wherein a sealing of the rotating cylinder at least at each of the two frame elements is provided in the closed position,

   characterized in that

   the sealing seals the rotating cylinder at its cylindrical surface and at its two front sides by means of a seal (5), which has a pair of elongated portions (5b) and a pair of circular-arc portions (5a) in order to provide a circumferential complete sealing.
2. The ventilation device according to claim 1, wherein between the at least two sealings of the rotating cylinder there is provided a drainage.
3. The ventilation device according to claim 2, wherein the drainage is arranged at a front side of the rotating cylinder to allow the installation of the ventilation device with a substantially perpendicular rotation axis of the rotating cylinder.
4. The ventilation device according to one of the preceding claims, wherein a ratio between the passage cross section (A_F) and the overall cross section (A_G) of the ventilation device is greater than 0.5, preferably greater than 0.6.
5. The ventilation device according to one of the preceding claims, wherein the rotating cylinder comprises a pair of elongated elements (3, 4) having a cross section substantially in the form of a circle segment and connected to each other at their axial ends.
6. The ventilation device according to claim 5, wherein the elongated elements (3, 4) are connected to each other at their axial ends by circular disks (11, 13).
7. The ventilation device according to one of the preceding claims, wherein the frame elements of the pair of frame elements have an elongated shape and are connected to each other at their ends.
8. The ventilation device according to claim 7, wherein the frame elements are connected to each other by a circular terminating element (12, 14).
9. The ventilation device according to one of the preceding claims, wherein the seal (5) seals a gap between the cylindrical surface of the rotating cylinder and the frame element (1) and/or a gap between the circular terminating element (12, 14) and the circular disk (11, 13), wherein the seal (5) is preferably formed integrally and has a pair of elongated portions for sealing the cylindrical surface of the rotating cylinder as well as a pair of circular-arc portions for sealing the circular disk (11, 13).
10. The ventilation device according to one of the preceding claims, wherein the seal (5) is made of a permanently elastic elastomer, such as silicone, EPDM, TPE, butyl rubber, or gum, preferably by extrusion.
11. The ventilation device according to one of the preceding claims, wherein a motor (15, 16) is provided on a front side of the rotating cylinder, which is preferably fixed on the terminating element (12) with the casing thereof, and wherein a drive shaft (17) of the motor (15, 16) drives the rotating cylinder, preferably the disk (11), directly.
12. The ventilation device according to one of the preceding claims, wherein a motor controller for controlling the motor is provided with a central processing unit (CPU) capable of controlling a plurality of motors (15, 16) of a plurality of ventilation devices.
13. The ventilation device according to claim 12, wherein a stand-by circuit (stand-by) is provided, which by activation of a power supply supplies the central processing unit (CPU) with current only when driving commands are coming in.
14. The ventilation device according to one of the preceding claims 11 to 13, wherein a contact strip (7) is provided, which upon application of pressure can send a signal to the motor controller to stop the motor (15, 16).
15. The ventilation device according to claim 14, wherein the contact strip (7) is arranged in the region of the gap between the cylindrical surface of the rotating cylinder and the frame element (1).

Images