EP2129856B1 - Frame having a ventilator element, and method for the production of a frame having a ventilator element - Google Patents

Description

The present invention relates to a housing with a fan element arranged therein according to the preamble of claim 1 and a frame according to the preamble of claim 5.

A frame with a fan element is out of the DE 10 2005 043 199.2 known. In this document, a frame with a rotatably disposed therein fan element is described in which, depending on the set rotational position, a ventilation channel through the frame results. The receiving space is designed to be open in the frame profile cross section, so that the fan element can be inserted into the receiving space and fixed there by additional fastening strips. Due to the open design of the receiving space this must always be closed with a cover strip, even if no fan element is inserted therein. This results in an increased installation effort for the frame system. In addition, the complexity of the profile frame system is increased by the plurality of parts to be processed, and the possibility of errors during assembly and installation on the construction site increase.

From the DE 38 28 852 It is known to use a housing with a fan element disposed therein in a profile frame to connect them together and simplify the assembly. However, the housing is so large that it clearly protrudes beyond the frame profile cross-section. This results in a chunky and unsightly look. In addition, the existing profile frame must be almost completely removed in order to be able to arrange the housing in the space becoming vacant. This represents a serious interference with the structural design of the profile frame, through which the original technical properties, such as thermal insulation and static, can no longer be guaranteed.

Out DE 202 20 923 U1 is a window or a French window with a sash and a frame visible, with a fan with its housing can be positively inserted on the inside for improved ventilation in the frame.

DE 10 2005 054 602 A1 is a ventilation system with drive for a turn or tilt-turn window or door known in which an adjustment is positioned within the ventilation unit and adjusted via a coupling member wings and frame against each other.

A generic frame, which simultaneously forms a housing for an internal rotatable slot tube and also has slots, which allows to connect depending on the rotational position of the slot tubes a window interior between two casements with the outside air or with the indoor air space, is from DE 31 09 811 A1 known. The air exchange can be assisted by a fan. The disadvantage is that this ventilation is tied to double windows with a window space included in the ventilation and that a reversal of the ventilation direction requires a complex reversible direction reversible fan.

Accordingly, it is an object of the present invention to provide a frame and a housing with a fan element in which a fan element with low installation costs can be inserted into the frame, wherein the housing should be designed as compact as possible.

This object is achieved with a housing according to claim 1 or with a frame according to claim 5. A case to be used blower, which promotes air in one direction, but it nevertheless allows a reversal of air promotion to the inside or outside in interaction with the fan element, requires little installation effort, especially with regard to its interconnection and is compact in this simplified embodiment - Advantageous for the design of the frame and the installation of a fan. The interaction with the fan element in the sense of controlling the air delivery to the inside or outside allows the direction reversal. It can the fan with only one conveying direction can be optimized not only compact but also powerful.

By installing the fan housing in a housing, the number of parts to be joined together during assembly is reduced. The housing can be used in one piece in a frame. Due to the at least partially matching the outer contour of the housing with the outer contour of the frame profile cross-section, the housing adapts to the frame profile cross-section, and it is no longer necessary to fix the housing with special mounting strips in the receiving space. Due to the at least partial correspondence of the housing with the frame profile cross-section also results in very compact dimensions of the housing, and it is possible to completely integrate the housing in a frame profile. In the outer contour of the housing webs, folds, grooves, channels, hollow channels and the like can be continued form-retaining, which have the adjacent in an installed position to the housing portions of a frame profile. An outer contour of the housing is dimensionally preserving, if maintained by their shape design, the technical function of the corresponding element in the frame section cross section; slight form deviations are possible.

The sensitive and technically complicated components of the fan element, the blower can be arranged therein and the adjustment for adjusting a rotational position of the fan element can be completely pre-assembled in the housing, which is then used only as a one-piece module in the receiving space. According to one embodiment of the invention are on the frame and the housing correspondingly shaped plug-in elements, by their nesting the frame-side electrical and electronic connections, especially supply lines for power or for connection to a bus system to remotely mounted sensors, a control and regulation unit or a radio module be made with the housing and the components therein. In addition to the blower can be arranged in the housing of the servomotor for the fan element or other sensors. This reduces the assembly effort and the possibility of errors in the assembly of a frame provided with the housing.

The housing may be held stationary in the receiving space by a form-fitting design of the housing contour, in particular with latching connections to the frame profile, and / or one or more fixing aids, such as adhesive, rivets, screws or the like. It can also or alternatively protrude at the longitudinal and / or end sides of the housing webs, with which the housing with the frame profile can be connected and fastened.

According to one embodiment of the invention in the case of a window frame, the outer contour of the housing corresponding at least in sections to the outer contour of the frame profile cross section corresponds at least to a part of the side of the frame profile cross section facing the wall opening area. In such a configuration, the outer contour of the housing corresponding to the outer contour of the frame profile cross-section therefore lies in a region, in particular in the case of a window frame, which is covered by the window profile and not visible in the case of a closed window. Thus, the housing is visually inconspicuous integrable in a profile frame. With such a design, the inwardly and outwardly facing surfaces of the frame profile remain unchanged, and also the technical functions of the frame profile such as water and wind resistance, thermal insulation and static, remain unimpaired by the combination of the frame profile with the housing.

The length dimensions of the housing can be chosen so that can be accommodated one above the other in an average window frame several housings. Depending on the height of the wall opening and number of built-in housing so, for example, multiple fan elements can be used as a suction and multiple housing as blow-out. A suitable length of housing may be 20 to 90 cm.

In addition to or instead of a housing with fan element, other functional parts such as, for example, membranes in a housing can be inserted into the receiving space in the frame profile in the receiving space. Membranes are used in wall openings for many purposes. Thus membranes are for example as fly screens, pollen protection or for shading or darkening the wall openings known. As a roller blind, these can, for example, be rolled out of a housing according to the invention and rolled up again.

An air duct in the frame profile, by the air to the fan element can be moved, can also be used to pass through a membrane from the receiving space to the outside or to the receiving space. In this way it is possible to use an identical frame profile for the production of the frame of a wall opening in order to arrange fan elements in the receiving spaces on the sides and, for example, a fly screen in the receiving space of the upper transverse profile. The membrane may be held along its length in the context of lateral brush seals, so as not to bulge or pick up in windy weather conditions from the frame and to flutter in the wind. The brush seal may extend over the entire or nearly entire length of one side of the frame to guide and hold the membrane over the full length.

The membrane can be provided with an end strip, in order to keep it wide stretched and to be able to guide well manually on the end strip. The end bar can be fastened to the frame. To facilitate attachment and detachment of the end bar, the end bar can be removed from the brush seal just before reaching the maximum extension length, so that there are greater degrees of freedom for movements of the end bar.

The housing which can be inserted into the frame preferably has an air guide element that can be attached to the housing to form a ventilation channel. This may extend to the interface frame and inside or outside for the formation of the air / or ventilation duct through a cutout or other frame opening. It also preferably consists of a flexible material, which preferably can be tightly clinging to the frame and the rest of the housing. This material is particularly advantageous for use in a sash when the air guide must be performed to form a bent air duct around a corner or has a bend. Furthermore, the air guide element is preferably provided with a sloping bottom to the outside, so that optionally in the air duct entering water again can expire. In the air guide element preferably a grid may also be present in one piece, which prevents the ingress of small animals.

The use of the preferably replaceable air guide element leads to the formation of a precisely defined air channel, which can be readily cleaned.

An air guide element arranged on the wing frame side furthermore preferably forms the ventilation channel by means of a seal which can be attached to the housing, wherein the seal can seal off the air channel with respect to the wide space located between the trim and casement frames.

Further preferably, the housing comprises a filter frame designed to receive an air filter, a membrane or the like. Filter element. This can be connected, for example via a latching connection with the rest of the housing, which allows easy handling and equally easy maintenance or replacement of the filter element. The filter frame can form a common air guide together with the seal and optionally further air guide elements.

Further modifications and advantageous embodiments of the invention can be taken from the following objective description, the drawings and the features of the dependent claims.

Fig. 1:

eine Querschnittsansicht durch ein Rahmenprofil,

Fig. 2:

eine Querschnittsansicht durch ein bearbeitetes Rahmenprofil,

Fig. 3:

eine Querschnittsansicht durch ein Rahmenprofil mit eingesetztem Gehäuse,

Fig. 4:

eine Ansicht auf ein Gehäuse in einer Schnittansicht,

Fig. 5:

eine Ansicht auf das in Fig. 4 gezeigte Gehäuse mit einer veränderten Drehstellung des Lüfterelements, und

Fig. 6:

eine Explosionszeichnung auf einen Rahmen mit einem Gebläse,

Fig. 7:

eine Einzelansicht eines ein Gebläse aufweisenden Gehäuses.

The invention will now be explained in more detail with reference to an embodiment. Show it:

Fig. 1:

a cross-sectional view through a frame profile,

Fig. 2:

a cross-sectional view through a processed frame profile,

3:

a cross-sectional view through a frame profile with inserted housing,

4:

a view of a housing in a sectional view,

Fig. 5:

a view on the in Fig. 4 shown housing with a changed rotational position of the fan element, and

Fig. 6:

an exploded drawing on a frame with a blower,

Fig. 7:

a single view of a fan housing having.

Fig. 1 shows a cross-sectional view of a frame profile 2 with a receiving space 4. The receiving space 4 is laterally surrounded by walls of the frame profile 2 and closed in this way. The receiving space 4 is in the exemplary embodiment a hollow chamber in the frame profile 2. The receiving space 4 shows in the cross-sectional view a non-circular cross-sectional shape. When receiving a suitably also out of round designed housing 8 in the receiving space, this can not rotate in it. Not shown in detail drawn further hollow chambers, which may be located in the frame section 2 and are separated from each other by appropriate walls. Also grooves for receiving seals, locking projections for locking attachments and the like are not shown in detail. Illustrated by way of example is a web 6, which could serve, for example, as an attachment surface for the sealing of a window sash, which would rest on the web 6 when the window is closed.

In Fig. 1 is indicated by a diagonal hatching, which area of the frame profile 2 could be milled away in order to use a housing with fan element in the receiving space 4 can. In Fig. 2 the frame profile 2 is shown in a cross-sectional view after the in Fig. 1 hatched shown portion of the frame profile 2 is milled away. It is well recognizable that after routing away the hatched components in Fig. 1 the receiving space 4 is open and easily accessible.

In Fig. 3 a cross-sectional view is shown by a frame profile 2, in the receiving space 4 now a housing 8 is inserted. In the housing 8 is a fan element 10 which is rotatably mounted in the housing 8. The fan element 10 has ventilation slots 12, which are introduced in the wall at certain points. The housing 8 has ventilation channels 14, which connect the receiving space 4 with the outside of the housing 8. Depending on the cross-sectional configuration of the frame profile 2, air ducts 16, which connect the receiving space 4 and the ventilation ducts 14 to the interior of the building or the outside air at a suitable rotational position of the fan element 10, can still adjoin the ventilation ducts 14. The ventilation to the outside can be done through the frame and / or a window or door leaf, details of which are not included in the accompanying drawings.

The vents 12 and the ventilation ducts 14 may already be finished in a housing 8 before it is ready for assembly. In the frame section 2, an air duct 16 together with the in Fig. 1 hatched shown areas of the frame profile 2 are milled out, if he was not created when extruding the frame profile 2. With a suitable rotational position of the fan element 10, the ventilation slots 12, ventilation channels 14 and air ducts 16 result in a channel through which used air from the inside of the building to the outside and / or fresh air from the outside in through the frame profile 2 can pass.

When comparing the in the Fig. 1 and 3 shown frame profile cross-sections is clear that they have in spite of the housing 8 inserted into the receiving space 4 in this area a matching outer contour. The outer contour of the area with the web 6 and its surroundings, in Fig. 1 hatched, is found in comparable form in Fig. 3 , where here this area is a part of the housing 8. In frame profiles 2, in which a housing 8 is inserted in a section, the outer contour of the adjacent frame profile cross-section is at least in the section of the correspondingly shaped housing 8 continued. After insertion of the housing 8, therefore, resulting from the shape of the housing 8 continuous webs 6, beads, edges, grooves, folds, grooves and the like in the frame section 2, without it being necessary to attach additional strips on the frame section 2.

The web 6 is located only in the illustrated embodiment at the location shown, the web 6 can also be provided elsewhere, flatter, higher, wider or not at all, or it can be provided with the same or different cross-section a plurality of webs. The web 6 can be replaced, for example, by a circumferential soft seal, if desired. The same applies to the rest of the design and dimensioning of the walls and hollow chambers in hatched and adjacent to the region of the frame profile cross-section. A web 6 may be designed so that a screw or other fastening means, which is inserted in an underlying area in the housing 8 or in the frame profile 2, as shown in FIG Fig. 3 is not visible to a user of the frame during normal use.

In Fig. 3 It can be seen that the outer contour of the housing 8 corresponding at least in sections to the outer contour of the frame profile cross section corresponds at least to a part of the side of the frame profile cross section facing the wall opening surface. In Fig. 3 is as a wall opening surface, a window 18 indicated, which is held by the frame profile 2. Since between the window pane 18 and the frame section 2 usually still a drawing frame, not shown, is present, the outer contour of the housing 8 is covered with the window closed by the sash.

Based on the illustration in Fig. 3 Furthermore, it can be seen that, instead of a housing 8 with a fan element 10 rotatably arranged therein, a housing 8 with a membrane rolled up therein can also be inserted in the receiving space 4. The membrane can then be guided through the ventilation channel 14 to the outside. In Fig. 3 a brush seal 22 is indicated, of which a membrane 24 is held and guided.

In Fig. 4 there is a schematic representation of a housing 8 in an overall sectional view. In the housing 8, the fan element 10 is rotatably mounted. The ventilation slots 12 are arranged at the same height as the ventilation channels 14 of the housing 8. At a height spaced from each other a plurality of ventilation slots 12 and / or ventilation channels 14 in a different angular position of the circular cross section over the circumference of the fan element 10 and / or the housing 8 be distributed as that Fig. 3 is recognizable. While the ventilation ducts 14 can not be displaced by the fixed installation of the housing 8 in the frame profile 2, the ventilation slots 12 can change their spatial position by a rotation of the fan element 10. The rotation may be manual or motorized, and the motor adjustment may be triggered by a single operator command or by an automatic controller.

In Fig. 4 is schematically shown a rotational position of the fan element 10, in which form in the upper region of the housing 8 of the left vent slot 12 and the left vent passage 14 a common vent opening. In the same way, there is a common ventilation opening in the lower region of the housing 8 on the right side through the matching ventilation slot 12 with the ventilation duct 14 Fig. 4 the left side of the housing 8 with the outside atmosphere A equal and the right side with the interior I, results in a fan 20, which conveys the air in one direction, for example from top to bottom, the supply of fresh air into the interior I. a building.

Twisting the fan element 10 in a position as in Fig. 5 is shown results in a modified pairing of ventilation openings, in which the interior I associated with the ventilation opening is now above and the outer atmosphere A associated vent now below. With the same conveying direction of the blower 20 as in Fig. 4 results from a rotation of the fan element 10 in an in Fig. 5 shown position a removal of indoor air from the building to the outside.

By rotating the fan element 10, in the proposed arrangement of a plurality of ventilation openings on both sides of the fan 20 in the longitudinal extension of the housing 8, a reversal of the conveying direction of the transported air from the inside to the outside and vice versa without the direction of rotation of the fan 20 would have to be changed , The blower 20 can therefore be optimized in a conveying direction, which has a considerable effect on the delivery rate of the blower 20 in the case of the small dimensions of the housing 8 and the air flow rate limited as a result. The fan 20 thus has an identical delivery rate in both conveying directions, if the common ventilation openings are dimensioned the same size. However, the reversal of the conveying direction is only possible if the ventilation slots 12 are arranged distributed in a different angular position over the circumference of the fan element 10 with intervening sections without wall openings, so that upon rotation of the fan element 10 depending on the rotational position, a different combination of common Ventilation openings results.

If the ventilation slots 12 and the ventilation ducts 14 are dimensioned and distributed over the circumference of the fan element 10 or the housing 8 in such a way that sufficiently wide intermediate spaces without openings result, the fan element 10 can also be moved to a rotational position in which there are no common ventilation openings , In such a rotational position, the wall of the fan element 10 covers at least a plurality or all of the ventilation channels 14 of the housing 8 from the inside. The fan element 10 and thus also the housing 8 are thereby closed against an air passage. The closed air space, which is located inside the fan element 10, represents an insulating space, are passed through the heat losses only delayed to the outside. Also, heat from the outside can not easily pass through a fan element 10 located in a closed position. In a closed position of the fan element 10, the receiving space 4 thus forms one of several, in particular in the profile cross-section of plastic windows known isolation chamber.

According to a preferred embodiment of the invention, the dimensions and the geometric shape of the receiving space 4 and the housing 8 are coordinated so precisely that in the installed state of the housing 8 in the receiving space 4, a sealing or at least almost sealing contact the outer surfaces of the housing 8 to the inwardly facing surfaces of the receiving space 4 results. As a result, no draft air can flow around the housing 8 around the receiving space 4 on the outside. This way, the frame can be closed completely tightly and drafts, wind noise and energy losses are safely excluded.

In the perspective view in Fig. 6 is clearly visible how the individual parts can be assembled to form a frame according to the invention. The fan element 10 is inserted into the housing 8, and the housing 8 can then be inserted into a suitably milled portion of the frame profile 2. In the areas of the receiving space 4 of the frame profile 2, in which no housing 8 is used, an insulating part 26 can be used. At the longitudinal and / or end sides of the housing 8, as in the embodiment, projections 28 can protrude, with which the housing 8 can be connected to the frame profile 2. In an installed position of the housing 8, the lugs 28 are located on a wall of the frame profile 2 and can be connected there to the frame profile 2, for example by screws or rivets.

In order to create a sufficient space in the corner of abutting frame sections 2, for example, to insert a housing 8 with a membrane therein in a receiving space 4 of a transverse frame profile 2, it is proposed that the thickness of a frame profile 2 in a corner by milling to reduce inwardly projecting walls or webs and replace the reduced parts by support members 30 in a subsequent operation, so that at least approximately or completely the original peripheral contour is restored.

The above-described embodiments serve to exemplify the invention, the invention is by no means limited to the embodiments. The person skilled in the art is able to modify the invention for a use case in a manner which seems to be suitable.

In Fig. 7 is shown in a single view of a housing which is used with a fan as a functional unit in a frame, preferably in a frame. In a sufficiently sized wing frame, the housing shown can also be used in this. The housing shown comprises two air guide elements 32, which form a ventilation duct to the inside. To the outside, the housing is provided with a filter frame 34, on which a seal 36 is mounted. This seal 36, together with a not shown and arranged in the sash frame air guide out to the outside facing ventilation ducts. With the filter frame only indicated filter elements 38 are arranged in both channels.

On the inside, a grid 40 is clipped onto the two air guide elements, which forms the conclusion to the interior. With RJ-45 plugs 42, the control of the fans and their supply is guaranteed. In order to be able to supply a plurality of housings 8 which are arranged above one another in a frame, the housing 8 has corresponding connections both on its upper side and on its lower side.

Claims (7)

1. Housing (8) comprising a ventilator element (10) that is arranged therein and is intended for use in a frame in a wall opening, the housing (8) and the ventilator element (10) arranged therein so that it can rotate about a longitudinal axis having a plurality of ventilation openings that are distributed over the length of the housing (8) and are arranged in a corresponding longitudinal position such that, when the ventilator element (10) is in a corresponding rotational position, a plurality of air passage openings result which are together formed in the housing (8) and in the ventilator element (10) by the ventilation openings, which are arranged in a corresponding longitudinal position, characterised in that, in the longitudinal extension of the housing (8), a fan (20) is arranged in the interior space of the ventilator element (10) between the ventilation openings and only conveys air in one direction, and in that ventilation openings result on both sides of the fan (20) inwardly or outwardly with a change in direction depending on the rotation of the ventilator element (10).
2. Housing according to claim 1, characterised by at least one air-guiding element (32) that can be placed on the housing in order to form a ventilation duct.
3. Housing according to claim 2, characterised in that the air-guiding element (32) forms a ventilation duct by means of a seal (36) that can be placed on the housing (8).
4. Housing according to either claim 2 or claim 3, characterised by a filter frame (34) that is designed to receive an air filter, a membrane or similar filter element (38).
5. Frame comprising a housing (B) according to any of claims 1 to 4, which has a ventilator element (10) arranged therein, the frame being provided for use in a wall opening and having a frame profile cross section that has a receiving space (4) for receiving the ventilator element (10), the main axis of which extends in parallel with the longitudinal extension of the frame profile (2), and the housing (8) having an outer contour that corresponds at least in portions to the outer contour of the adjacent frame profile cross section.
6. Frame according to claim 5, characterised in that projections (28) protrude on the longitudinal sides and/or end faces of the housing (8), by means of which the housing (8) can be connected to the frame profile (2).
7. Frame according to either claim 5 or claim 6, characterised in that correspondingly formed plug-in elements that can be plugged into one another are formed on the frame and on the housing (8), and by being connected, electrical and electronic power supply lines to the housing (8) and components located therein can be produced on the frame side.

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