DE202012101599U1 - Passive house windows - Google Patents

Abstract

Window 1, comprising a glass pane 2, a wing 3a / b and a window frame 4a / b, each having a load-bearing inner layer 3a or 4a and an insulating part 3b or 4b, characterized in that the glass plate 2 completely on the wall side of the insulating parts 3b and 4b is encompassed by the sash and window frame, with corner pieces 6 being applied on the outside to the load-bearing inner layer 3a of the sash, which are designed to be statically load-bearing and are firmly connected to the load-bearing inner layer 3a of the sash, so that the weight load of the glass pane 2 from the load-bearing inner layer 3a of the wing is added.

Description

TECHNICAL AREA

The present invention relates to a passive house window. In particular, it relates to a passive house window, which has improved insulation properties by shifting the static.

BACKGROUND AND PRIOR ART

Window frames usually include sashes and frames, both of which are largely made of a solid material such as metal, wood or plastic to provide sufficient strength. In low-energy and passive houses, however, it should be noted that they reduce their heat losses, in particular by the special insulating properties of their windows, ie the glazing including the window frames, and generate high solar gains through narrow frames, ie large glass surfaces. In the case of passive houses, the windows in the cool, temperate climatic zone (eg Germany) must not exceed a heat transfer coefficient, the so-called U _W value of 0.80 W / (m ² K), in order to ensure a comfortable indoor climate even without a radiator under the window. For this reason, neither the frame nor wings should be made of materials such as metal or plastic, which, although a high strength, but have a higher thermal conductivity than wood and thus form thermal bridges. In addition to the particularly to be designed in this regard wings and frames, which include wood and especially insulating materials, provide the solar gains on the glass surfaces of energy-efficient buildings a steadily larger proportion of heat required for heating.

However, there are still no window constructions that meet the above requirements for comfort even in the cold regions of the earth. For a passive house window in the cold climate zone (eg Moscow), a U _W value of 0.60 W / (m ² K) would be at least necessary in order to be able to do without radiators under the window with great comfort. Since the U-value of the frame (U _f ) is the biggest weak point even for the highest-quality passive house windows of the class phA, it promises the greatest potential for improvement in this respect.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide a window in which wing and frame have no or at least only a small heat conduction in the region of the insulating layer of the building envelope.

This is achieved by a window with the features of claim 1. According to the present invention, a window is provided which comprises a glass pane and a wing and a frame, each having a supporting inner layer and a Dämmanteil, characterized in that the glass pane side is completely encompassed by the Dämmanteilen of wing and frame, wherein on the outside of the supporting inner layer of the wing corner pieces are applied, which are carried statically supporting and firmly connected to the supporting inner layer of the wing, so that the weight load of the glass pane received by the supporting inner layer of the wing becomes.

Particularly advantageous embodiments will be apparent from the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

1 shows a cross section through the window according to the invention;

2a shows the cross section 1 which is supplemented by a corner piece;

2 B shows the cross section 1 which is supplemented by a clip;

3a -E show oblique, bottom and side views of the inventive corner piece for the wing of a window; and

4 shows a frontal view of the window with the two corner pieces.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Energy-efficient windows for low-energy and passive houses are usually installed in the wall construction in such a way that the insulating layer of the window comes to lie in the insulating layer of the wall. Since within a window element, the glass plane also represents the insulating layer, consequently, the insulating layer should flow unhindered from the glass through the window frame in the insulating layer of the wall. However, in the case of windows according to the state of the art - even in low-energy and passive house windows - the window pane in the sectional plane completely covers the glass pane for static reasons. Thus, static bearing areas of the wing penetrate the insulation layer of the building envelope. Static load-bearing parts require high strength - but high strength also means high thermal conductivity. In the same way load-bearing areas within the frame interfere with this level of insulation. By contrast, with the present invention, for the first time, it has been possible to construct a window in which the wings and the frame have no or at least only slight heat conduction in the region of the insulating layer of the building envelope.

1 shows the window according to the invention 1 with the glass pane 2 , the wing 3a / b and the frame 4a / b, between which a (partially interrupted) air gap 5 lies. This wing and frame consist of a supporting inner layer (preferably made of wood) and a insulating outer layer, ie, for example, a wood content 3a respectively. 4a and a Dämmanteil 3b respectively. 4b , The insulating outer layers 3b and 4b and the insulating glass pane 2 lie thus in a plane, so that the insulation plane unhindered by the glass 2 through the window frame 3b and 4b overflowed into the insulating layer of the wall, as required above.

The weight of the disk and the pressure and suction loads acting on the glass would initially contradict such a structure, which is why, in the case of the prior art windows, the z. B. made of wood window sash in the sectional plane completely covers the glass. To solve this static problem, according to the present invention corner pieces 6 on the outside on the supporting inner layer 3a of the wing applied, as in 2a shown. These corner pieces 6 , which are preferably made of high-strength plastic, are closer in 3a -E are shown and are carried static carrying and fixed to the supporting inner layer 3a connected to the wing, so that the weight load of the glass 2 from the wearing inner layer 3a of the grand piano is recorded. The arrangement of the corner pieces on the wing 3a can 4 be removed. The first corner piece 6 is on the hinge side at the bottom of the inner layer of the wing 3a attached. This is how the entire weight load of the glass pane becomes 2 over the corner piece 6 first in the supporting inner layer 3a the wing and from there, as usual in windows, on the fitting or the corner bearing in the frame - here of the supporting inner layer 3a of the wing into the supporting inner layer 4a of the frame.

The composition of the window according to the invention 1 takes place in the following way. After placing the glass pane 2 on the supporting inner part 3a the wing becomes diagonally opposite (see 4 ) a second corner piece 6 pressed directly on the disc and in the same way on the inner part 3a attached to the sash. This creates a completely new static load-bearing connection between glass 2 and window frames 3a / B, 4a / B. The glass pane 2 stiffened simultaneously (without gluing) the casement, without having a particularly negative impact on the insulating properties of the construction. The entire free encircling space between the glass pane 2 and the wall can be filled, except in the corner area, with high-quality, statically non-supporting insulating materials.

With this novel arrangement, U-values of the window frame (U _f ) can be significantly below 0.5 W / m ² K reach. In addition, frame widths of less than 60 mm can be realized, which in turn leads to larger glass surfaces and thus to higher solar yields. The entire window according to the present invention achieves a U _W value of less than 0.60 W / (m ² K) by means of the new design despite conventional 3-fold glazing. Because of the narrow frame width, this new construction reaches the class phA ⁺ for the first time. The passive house window thus starts its entry into the cold climatic region of our earth. But even in the warmer climates the use of the window according to the invention makes sense and is economical - here the new window construction offers the possibility to provide buildings with a heating demand of almost zero in the cool temperate climate belt.

The inventive window can be changed in various ways and its effectiveness can be improved. First, the corner piece 6 be executed so that it at the same time as a corner connector for the wooden parts 3a the wing serves - the wooden parts 4a of the frame can be constructed in the same way with supporting corner pieces. Fixed windows can also be carried out in this way - this would take two corner pieces in the lower part of the frame even with very large glass panes the entire weight load of the glazing.

The corner piece 6 can also be carried out on the outside so that there is a glass retaining strip (see 1 ) absorbs static load.

It can single the insulation layer 3a respectively. 4a be provided by cross-section parts, which preferably consist of stable thin-walled plastic and the pressure-suction load from an outer glass retaining strip on the supporting inner layers 3a and 4a from the sash and the frame.

The corner piece may preferably be designed so that it has an exemption in the region of the glass corner. Thus, any glass breakage in the fracture-sensitive area of the glass corner can be avoided.

Claims (7)

window 1 comprising a glass sheet 2 , a grand piano 3a / b and a frame 4a / b, each having a supporting inner layer 3a respectively. 4a and a Dämmanteil 3b respectively. 4b characterized in that the glass pane 2 completely on the wall side of the insulating parts 3b and 4b is encompassed by the sash and the frame, with the outside on the supporting inner layer 3a of the wing corner pieces 6 are applied, which carried statically supporting and fixed to the supporting inner layer 3a connected to the wing, so the weight load of the glass 2 from the wearing inner layer 3a of the grand piano is recorded. A window according to claim 1, wherein the first corner piece 6 on the hinge side at the lower end of the inner layer of the wing 3a is attached, so that the entire weight load of the glass 2 over the corner piece 6 first in the supporting inner layer 3a of the wing is transferred and from there via a fitting or a corner bearing in the frame, ie from the supporting inner layer 3a of the wing into the supporting inner layer 4a of the frame. Window according to one of the preceding claims, wherein the corner piece 6 designed so that it at the same time as a corner connector for the individual parts of the load-bearing inner layer 3a of the grand piano serves. Window according to one of the preceding claims, wherein the corner piece 6 designed so that it at the same time as a corner connector for the individual parts of the load-bearing inner layer 4a of the frame is used. Window according to one of the preceding claims, wherein the corner piece 6 on the outside is designed so that it receives a glass retaining bar statically supporting. Window according to one of the preceding claims, wherein individual the insulating layers 3a respectively. 4a are provided by cross-section parts, which preferably consist of stable thin-walled plastic and the pressure and suction load from an external glass retaining strip on the supporting inner layers 3a and 4a from the sash and the frame. Window according to one of the preceding claims, wherein the corner piece 6 is designed so that it has an exemption in the area of the glass corner, so that any glass breaks in the fracture-sensitive area of the glass corner are avoided.

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