Insulating glazing and method for the production thereof
阅读说明:本技术 隔绝玻璃化物和用于其制造的方法 (Insulating glazing and method for the production thereof ) 是由 D·尼泽 F·卡雷 W·施赖贝尔 于 2018-12-20 设计创作,主要内容包括:隔绝玻璃化物,其包括第一盘片和第二盘片;与第一和第二盘片分别水蒸汽密封地固定连接的、环绕的在第一盘片和第二盘片之间的间距保持件,其具有至少两个平行伸延的盘片接触壁、外壁和玻璃化物内室壁以及内室;以及围绕间距保持件的外壁在第一和第二盘片之间环绕的水密封的密封器件条,其中至少一个压力平衡元件插入到密封器件条和间距保持件中,其一方面相对于周围大气且另一方面相对于间距保持件的内室或相对于在第一和第二盘片之间的玻璃化物内室敞开且如此构造,以至于其提供带有在大气和间距保持件的内室或玻璃化物内室之间的压力平衡功能的由于老化和/或大气影响时间上受限的气体连接。(An insulating frit comprising a first disk and a second disk; a circumferential spacer piece fixedly connected to the first and second disks in a vapor-tight manner, which is arranged between the first and second disks and has at least two disk contact walls running parallel to one another, an outer wall and a wall of the vitrified inner chamber, and an inner chamber; and a watertight sealing device strip which surrounds the outer wall of the spacer between the first and second disks, wherein at least one pressure compensation element is inserted into the sealing device strip and the spacer, which is open on the one hand with respect to the surrounding atmosphere and on the other hand with respect to the inner chamber of the spacer or with respect to the inner chamber of the glass between the first and second disks and is designed in such a way that it provides a gas connection which is limited in time by aging and/or atmospheric influences with a pressure compensation function between the atmosphere and the inner chamber of the spacer or the inner chamber of the glass.)
1. Insulating glazing (1,1') comprising
A first disk (2a) and a second disk (2b),
a circumferential spacer (3,3') which is fixedly connected to the first and second disks in a steam-tight manner between the first and second disks and has at least two disk contact walls running parallel, an outer wall (3e,3e') and a vitrified inner chamber wall (3c) and an inner chamber (3f), and
a watertight sealing device strip (5) which surrounds the outer wall of the spacer between the first and second disks, wherein at least one pressure compensation element (7) is inserted into the sealing device strip and the spacer, which is open on the one hand relative to the surrounding atmosphere and on the other hand relative to the inner chamber of the spacer or relative to the inner vitrified chamber (2c) between the first and second disks and is designed in such a way that it provides a gas connection which is limited in time by aging and/or atmospheric influences with a pressure compensation function between the atmosphere and the inner chamber of the spacer or the inner vitrified chamber,
characterized in that the pressure equalization element (7) contains in the base body (7a,7b) a substance that starts to be gas-permeable, which ages and/or degrades under the influence of atmospheric air moisture and the gas permeability of the pressure equalization element decreases more and more until it is completely closed.
2. The insulating glazing (1,1') according to claim 1, wherein the degraded substance (7g) is filled into the pressure equalization element (7) together with a membrane (7f) that is water-tight and gas-permeable, in particular on the outside, yet limits the passage of water vapor.
3. The insulating glazing (1,1') according to claim 2, wherein the degraded substance has polyethylene glycol powder or particles and the water-tight membrane has a PTFE membrane, in particular a stretched or sintered PTFE membrane.
4. The insulating glazing (1,1') according to claim 1, wherein the aged substance is incorporated into the base body (7a,7b) as a membrane (7f), in particular on the basis of PTSMP.
5. The insulating glazing (1,1') according to claim 1, wherein the degraded substance is inserted into the pressure equalization element (7) together with a membrane (7f) which is water-tight and gas-permeable, in particular on the inside, but which nevertheless restricts the passage of water vapor, wherein in particular the water-tight membrane has a PTFE membrane and the degraded substance is a substance which swells up under the influence of atmospheric moisture, which is present as an insert (7g) which is initially porous or provided with openings (7 h).
6. The insulating glazing (1,1') according to any of the preceding claims, wherein the inner glazing chamber wall (3c) of the spacer (3,3') is embodied gas-permeable and the pressure equalization element (7) projects into the inner chamber (3f) of the spacer and connects it in pressure equalization with the atmosphere.
7. The insulation glazing (1,1') according to claim 5, wherein the glazing inner chamber wall (3c) of the spacer (3,3') has a large number of smaller openings (3d), which are distributed in particular over the entire length of the spacer, and the inner chamber (3f) of the spacer is filled in particular with a desiccant (6).
8. The insulating glazing (1,1') according to any of claims 1 to 6, wherein the pressure equalization element (7) penetrates into the spacer (3,3') and protrudes into the glazing interior (2c) and connects it in a gas-equalized manner to the atmosphere.
9. The insulating glazing (1,1') according to any of the preceding claims, wherein the base section (7a) of the pressure-equalizing element (7) is embedded in the sealing device strip (5) and is open at its outer side and fixed at an outer wall (3e,3e ') of the spacer (3,3 ').
10. The insulating glazing (1,1') according to claim 9, wherein the base section (7a) embedded in the sealing device strip (5) is surrounded in the sealing device strip by a separate water-tight seal (9) and a further separate, water-vapor-tight seal (8) is provided at the penetration opening in the outer wall (3e,3e ') of the spacer (3,3 ').
11. The insulating glazing (1,1') according to any of the preceding claims, wherein the matrix (7a,7b) of the pressure equalization element (7) has a substantially graded cylindrical shape.
12. The insulating glazing (1,1') according to claims 10 and 11, wherein the separate water-tight seal (9) is hollow cylindrical or annular and the further separate water-vapour-tight seal (8) is annular.
13. Method for producing an insulating glazing (1,1') according to one of the preceding claims, with the following steps:
-the insulating glazing is formed by arranging the first and second disks (2a,2b) in parallel and their water-vapor-tight connection to the first or second disk contact wall (3a,3b) of the spacer (3,3'),
-applying the sealing device strip (5) circumferentially onto the outer wall (3e,3e') of the spacer,
-configuring an opening (5a,3g ') at least one location of the sealing device strip and at least in an outer wall (3e') of the spacer,
-gas-tightly inserting the or each pressure-equalizing element (7) into the or each opening in the sealing device strip and into the outer wall of the spacer, the pressure-equalizing element containing in the base body (7a,7b) a substance that starts to be gas-permeable, which ages and/or degrades under the influence of atmospheric air moisture and the gas permeability of the pressure-equalizing element decreases more and more until it is completely closed.
14. Method according to claim 13, wherein the pressure equalization element (7) is provided with a separate water vapour tight seal (8) before insertion into the opening (5a) of the sealing device strip (5).
15. Method according to claim 13 or 14, wherein the opening (5a) in the sealing means strip (5) is designed larger than the outer dimensions of the pressure equalization element (7) and, after insertion of the pressure equalization element, the gap between its outer contour and the inner wall of the opening is filled by injecting a sealing substance for the purpose of forming a separate water-tight seal (9).
Technical Field
The invention relates to an insulating vitrification material, which comprises a first disc and a second disc; a circumferential spacer piece fixedly connected to the first and second disks in a vapor-tight manner, which is arranged between the first and second disks and has at least two disk contact walls running parallel to one another, an outer wall and a wall of the vitrified inner chamber, and an inner chamber; and a watertight sealing device strip surrounding the outer wall of the spacer between the first and second disks, wherein at least one pressure equalization element is inserted into the sealing device strip and the spacer. It further relates to a method for producing such an insulating glazing and to the use thereof.
Background
Insulating glazings have been an uneconomical structural element of residential and utility buildings in industrial countries, especially in warm and colder climatic zones, since decades. In the course of worldwide efforts for climate protection and for saving heating and air conditioning costs, they are becoming more and more important and are also increasingly used in less developed countries.
The insulation glazings are chosen by the construction personnel not only in terms of their insulating ability and cost, but also to a large extent in terms of optical quality. Visible optical defects, as they arise, for example, by means of glass surfaces that are not perfectly flat, are increasingly intolerable by construction personnel and their designers and are virtually impermissible in commercially available insulating glazings.
The production of insulation glazings is carried out in large series in relatively large factories of individual manufacturers, and the finished insulation glazings are then provided in a number of locations for further processing into components (windows, doors, etc.) or for direct architectural use (for example for the facade (Fassaden-, sometimes referred to as storefront) or roof glazings). They can be located in significantly different height positions of the production site, so that in hermetically sealed (hermetisch) insulating glazings, due to the changing pressure at the reprocessing or use site, a bending of the disk occurs and the optical quality of the insulating glazings can be significantly impaired. The stresses induced by the pressure difference likewise burden the edge connections of the insulating glazing and tend to lead to reliability problems.
There is therefore a need for a solution which makes it possible to achieve a pressure equalization between the atmosphere and the interior of the glazing before or during the reprocessing of the finished insulating glazing or the use in construction.
Different embodiments of insulating glazings are known in the prior art, in which a certain gas exchange between the interior of the glazing and the surroundings can be achieved.
EP 0261923 a2 discloses a multi-disk insulating glazing with spacers consisting of moisture-permeable foam with integrated desiccant. The assembly is preferably sealed by an external seal and a gas and moisture tight membrane. The film may comprise metal-coated PET and polyvinylidene chloride copolymer.
DE 3808907 a1 discloses a multiple glass disk with ventilation channels running through the edge connection and a desiccant-filled drying chamber.
DE 102005002285 a1 discloses an insulating glass pressure equalization system for use in the disk interspace of thermally insulating glass.
EP 2006481 a2 discloses a device for pressure equalization for insulating glass units with a surrounding gas volume, in which a pressure equalization valve is introduced into a spacer of the insulating glass. The pressure compensation valve however has a complex mechanical arrangement in the form of a plurality of movable components, which not only leads to an increased error susceptibility of the system but also to significantly higher production costs.
WO 2014/095097 a1 from the applicant describes an insulating glazing with a pressure-equalizing element and a method for its production. Here, a pressure compensation body, which contains a gas-permeable and vapor-diffusion-tight membrane, is arranged in a sealing compound (sometimes called sealing material) and projects into the outer wall of the spacer, and the surrounding spacers are separated by special bulkheads.
DE 19506119 a1 discloses an insulating glazing according to the preamble of
Disclosure of Invention
The object of the invention is to provide a simple and cost-effective solution for pressure equalization of insulation glazings after their production, before or during their use in reprocessing or construction.
This object is achieved in terms of its device by an insulating glazing having the features of
The invention comprises the idea of providing a pressure compensation element in the edge connection that is insulated from the glass compound, which element is open on the one hand with respect to the surrounding atmosphere and on the other hand with respect to the interior of the spacer or with respect to the interior of the glass compound between the first and second disk and is designed in such a way that a temporally limited gas connection with a pressure compensation function between the atmosphere and the interior of the spacer or the interior of the glass compound is provided.
A further idea is to realize a temporally limited gas connection by means of a substance or an active element in the pressure compensation element, which changes its gas permeability in a suitable time period extremely due to aging and/or atmospheric influences. At the same time, it must be ensured from the outset that the pressure equalization element does not jeopardize the water-tightness and to a large extent the vapor diffusion tightness of the edge connection.
A time-limited gas connection with a pressure compensation function is to be understood here as a connection which only acts in a significant range after completion of the insulating glazing for a predetermined time, i.e. in particular for a period of time which typically passes from completion of the "disk pack" until its installation into a window or door or until its use in the glazing of a facade (verterheche). This does not necessarily mean that at a later point in time gas exchange is no longer possible overall and there is no pressure equalization at all, but rather that it decreases significantly later.
In particular, the pressure compensation element contains a watertight active element made of a substance that is initially gas-permeable in the base body, which ages and/or degrades under the influence of atmospheric air moisture and the gas permeability of the pressure compensation element decreases to a greater extent until it is completely closed. The substances mentioned can be incorporated in a simplified embodiment as membranes, in particular on the Basis of polytrimethylsilane-1-propyne (polytrimethylsilyl-1-propylne) (PTSMP) (Basis), into a substrate.
In a further embodiment, the degraded substance can be filled into the pressure compensation element together with a watertight and gas-permeable membrane, in particular on the outside, which however limits the passage of water vapor, wherein the degraded substance has polyethylene glycol (PEG) powder or particles and the watertight membrane has a PTFE membrane, in particular a stretched or sintered PTFE membrane (Goretex). Other chemicals or mixtures are also contemplated than mentioned, which have a similar function and whose costs can be replaced.
A further embodiment provides that the degraded substance is inserted into the pressure compensation element together with a membrane which is water-tight and gas-permeable (in particular on the inner side), but which nevertheless restricts the passage of water vapor. Here too, the particularly water-tight membrane has a PTFE membrane, and the degraded substance is a swelling (quelend) substance under the influence of atmospheric moisture, which is present as an insert which is initially porous or provided with fine openings. Such swellable substances are known in large quantities; in particular, certain thermoplastic elastomers (TPE) belong to this group.
In a further embodiment, which is preferred from the point of view of this side, the inner wall of the vitreous chamber of the spacer is gas-permeable, and the pressure compensation element projects into the inner chamber of the spacer and connects it in a pressure-compensated manner to the atmosphere.
Out of the inner chamber of the spacer and then the air or gas diffusion into the disk interspace or into the atmosphere is effected until the desired pressure equalization is achieved.
This embodiment is intended in particular to indicate that, when the interior of the spacer is filled with a desiccant, then the ambient air entering in the region of the pressure equilibrium passes through the desiccant and, for this purpose, extracts air moisture in a desirable manner. In particular, the inner wall of the vitrification chamber of the spacer can have a plurality of smaller openings, which are distributed in particular over the entire length of the spacer.
In principle, embodiments are also possible, however, in which the pressure compensation element penetrates into the spacing holder (durchto β en) and projects into the interior of the vitrification chamber and connects it to the atmosphere in a pressure-compensated manner. In this case, the drying agent can be provided in the pressure equalization element itself or, if possible, the drying of small amounts of incoming ambient air can be omitted in certain use cases.
In a suitable embodiment, the base section of the pressure compensation element is embedded in the sealing device strip and is open on its outer side, and it is fastened to the outer wall of the spacer, for example screwed into it. In particular, the base portion embedded in the sealing means strip is surrounded by a separate water-tight seal in the sealing means strip and a further separate water-vapor-tight seal is provided at the penetration opening in the outer wall of the spacer.
In a further embodiment, the base body of the pressure compensation element has a substantially stepped cylindrical shape. The larger diameter section (referred to above as the "base section") is then arranged on the outer wall of the spacer, and the smaller diameter section projects through the opening provided there into the spacer or penetrates into the vitreous chamber inner wall at a further opening aligned with the first opening. In the cylindrical embodiment of the base body, the separate water-tight seal is hollow cylindrical or annular and the further separate water-vapor-tight seal is annular.
The design of the method aspect of the invention is easily derivable for the person skilled in the art from the above-mentioned apparatus aspect and is not described again here in this connection.
However, it is pointed out that it is possible if the pressure equalization element is provided with a separate water vapour-tight seal before insertion into the opening of the sealing device strip. It is furthermore pointed out that in a further embodiment, the opening in the sealing means strip is designed to be larger than the outer dimensions of the pressure equalization element and that after insertion of the pressure equalization element, the gap between its outer contour and the inner wall of the opening is filled by injection of a sealing substance for forming a separate, water-tight seal. This enables a hermetically sealed embedding of the pressure equalization element into the sealing device strip independently of its specific mechanical properties and manufacturing tolerances in the openings generated for the pressure equalization element.
Drawings
The advantages and the suitability of the invention emerge furthermore from the following description of an embodiment with reference to the drawings. Wherein:
figure 1 shows a perspective partial cross-sectional detail view of a known insulating glazing,
figure 2 shows a perspective view of a pressure-equalizing element for use in an insulating glazing according to the invention,
figures 2A to 2C show schematic cross-sectional views of embodiments of the pressure relief element in an embodiment of the insulation glazing according to the invention,
fig. 3A to 3D show schematic cross-sectional views for illustrating the manufacturing steps of an embodiment of the insulating glazing according to the invention.
Detailed Description
Fig. 1 shows a partially cut perspective view of an insulating
The
Fig. 2 shows a perspective external view of a
According to fig. 2A, the
Fig. 2A to 2C show possible structural embodiments of the
Fig. 2A shows a membrane 7f of which the
Fig. 2B shows, as a further variant, a
Fig. 2C shows, as a further variant, a
Fig. 3A-3D show the important steps of its manufacture in a diagrammatic cross-sectional view of an insulating glazing 1' according to the invention. The structure of the insulation glazing 1' largely corresponds to that of the
In fig. 3A, the insulating glazing 1' is shown after the edge connection has been completed by applying the
According to fig. 3C, the
Furthermore, embodiments of the invention are likewise possible in a large number of modifications of the examples shown here and in the more emphasized aspects of the invention.
REFERENCE SIGNS LIST
1,1' insulating glazing
2a,2b glass disk
2c vitrification of the inner chamber
3,3' spacer
3a,3b disc contact wall
3c Glassy inner chamber wall
3d smaller opening
3e,3e' outer wall
Inner chamber of 3f spacer
Opening of 3g,3g' spacer
4a,4b butyl strip
5 sealing device strip
5a sealing the opening of the device strip
6 drying agent
7 pressure balance element
7a,7b base section
7c screw thread
7d,7e opening of the pressure equalizing element
7f diaphragm
7g of plastic granules or moldings
Opening in 7h shaped body
8 butyl thread
9 sealing material ring
W a coating roller.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:用于卷帘的板条组件、卷帘及其制造方法