SK500592019U1 - Construction of inter-window insulation insert with photovoltaic cells - Google Patents

Abstract

The construction of an inter-window insulating insert with photovoltaic cells usable in construction and power engineering consists of a frame (1) with fastening clips (3). Inside the frame (1), the horizontal beams (7) are angled, on which the solar cells (8) are interconnected by conductors (9). The front outer glass (10) is fixed in the frame (1) by means of a sealing profile (11) and a flexible sealant (12). A central wall (6) is also mounted in the frame (1) and a thermal insulation (4) is inserted between it and the rear wall (2) in the vapor-permeable film (5).

Description

Technical field

The technical solution relates to a method for solving the construction of an inter-window insulation insert with photovoltaic cells usable on building facades between windows. The technical solution is aimed at achieving the thermal insulation properties of the structure on the building envelope and at the same time as a part of the photovoltaic system and for the production of electricity obtained by the conversion of solar energy.

BACKGROUND OF THE INVENTION

Energy-efficient buildings require applications of renewable energy sources, among which solar energy plays an irreplaceable role. Electricity production from solar energy in solar systems starts in the photovoltaic panel. At present, conventional constructional designs of photovoltaic panels intended mainly for roof structures or mounted on floor structures are known. The design of such photovoltaic panels usually consists of a frame structure, a supporting rear wall, a system of interconnected photovoltaic cells interposed between the layers of the protective film, the vacuum space and the protective glass. Such a solution is characterized in that the individual photovoltaic cells form a planar grouping with each other. To ensure proper installation of such photovoltaic panels, it is necessary to select a panel orientation such that the sun's rays reach the photovoltaic cells either perpendicularly, or the angle of the sun's rays to the normal of the photovoltaic cells is as small as possible. Ensuring this condition allows the installation of panels on structures that clamp at an angle to the horizon plane. The rotation angle for static (not active) systems depends on the geographic location of the site. Photovoltaic panels are usually placed on the roofs of houses, on flat roofs on the mentioned additional constructions, on sloping roofs placed above the roof covering or integrated in the roof. The application of commercial photovoltaic panels vertically on the walls of buildings is also possible and is realized, however, since solar cells are generally not perpendicular to the direction of incidence of the sun's rays, the solutions may be ineffective. Vertically placed photovoltaic panels are mounted on auxiliary structures or are part of glass systems. The proposed solution of the construction of the inter-window insulation insert with photovoltaic cells represents a multipurpose construction. It is a photovoltaic panel with an inclined placement of solar cells in a structure with possible production of electricity, while the structure is self-supporting and at the same time with the necessary insulation, which can be integrated between the windows. Interiors are placed between a series of windows of office, school, manufacturing, residential, or other buildings, wherever a wall or partition separates two rooms and is usually mounted perpendicular to the outer cladding. Further application of inter-window insulating inserts is where it is necessary to cover in a continuous row of pillar windows, resp. load-bearing skeleton of the building.

The essence of the technical solution

The essence of the technical solution lies in the innovation of the application of current commercial photovoltaic panels placed on vertical constructions. The priority of the proposed solution is to place the photovoltaic cells in a closed structure made of structural elements such as a rectangular frame with a back plate and a front glazing. These plate-shaped elements are made of solid, non-absorbent and safe exterior materials. Fixing to each other creates a rigid self-supporting structure, which is in the frame part with handles allowing the window liner to be attached to the lining of the cladding similar to windows. The gap between the window frame is filled with polyurethane foam and the exterior flashing is similar to that of windows. The window insulation is divided into two parts by the central wall.

The first exterior - exterior part of the structure is internally reinforced by horizontal beams, on which are solar cells. Silicon solar cells are commercially available and can accommodate various dimensional solutions. An important design element is the rotation of the horizontal beams together with the solar cells interconnected by conductors so that the rays of the sun are generally perpendicular to the photovoltaic cells at the time of the highest daily intensity of solar radiation. For this reason, it is possible to create variable assemblies of these panels, with the solar cells inclined according to where they are located. The orientation to the cardinal points and the latitude of the site shall be taken into account. The inter-window insulation insert with photovoltaic cells has a front wall formed by a transparent safety glass which is fixed in the frame by means of a sealing profile and sealed by a flexible sealant. The second part of the inter-window insulating insert - interior is designed with an inserted thermal insulation between the middle and rear wall of the reinforcing plate, which is wrapped with a vapor-permeable foil. The importance of the film is to prevent condensation of water vapor in the thermal insulation, thereby maintaining the coefficient of thermal conductivity of the thermal insulation material. The value of this coefficient iostat

SK 50059-2019 The interlining layers of the inter-window insulating liner together with the thickness of the materials in the direction of heat flow from the interior to the exterior contribute to the value of the thermal resistance R [m ² KW ^_1 ] or the heat transfer coefficient U [WK ^_1 nr ² ]. These values must be designed in accordance with the standards of STN 73 0540-2 / Z1 - Thermal protection of buildings, Thermal technical properties of building structures and buildings, Part 2: Functional requirements, Amendment 1.

The proposed solution will create an integrated structure for the transformation of solar energy into electrical and at the same time a cladding structure located between windows with the required thermal insulation properties.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution is explained in the drawings, wherein figure 1 shows a cross-section and a view of the construction of an inter-window insulation insert with photovoltaic cells and figure 2 a detail of the solution.

EXAMPLES

Figures 1 and 2 show an exemplary construction of an inter-window insulating insert with photovoltaic cells, which is based on the fact that in the inter-window insulating insert frame with fixing brackets 3 there are between the middle wall 6 and the outer safety glass 7 which is mounted in of the frame 1 by means of a sealing profile 11 and a flexible mastic 12, inserted solar cells 8 interconnected by conductors 9 on inclined horizontal beams 7. The rotation of the horizontal beams 7 is such that the angle of incidence of sun rays on the active surface of solar cells 8 is optimized. 6 and the back wall 2 is inserted thermal insulation 4 wrapped with a vapor-permeable foil 5.

Industrial 'usability

The construction of the inter-window insulation insert with photovoltaic cells placed on the building facade in a row between transparent window constructions is usable as a part of solar systems for the production of electricity from renewable sources. The use of solar energy, which is transformed into electricity in the photovoltaic panel as part of the construction of the window and other solar system components, is possible in decentralized power generation. Decentralized production is in individual buildings, making these buildings energy efficient. Thus, the industrial applicability of the construction of an inter-window insulating insert with obliquely mounted photovoltaic cells is not only in the field of energy, but also in the field of construction. The application of inter-window insulating inserts as part of a facade arranged between windows allows a suitable architectural composition and does not interfere with the architectural expression of the building. At the same time, they contribute to the positive energy certification of buildings. The described constructional solution of the inter-window insulation insert with photovoltaic cells can be used in reconstructions and new buildings.

Claims (2)

PROTECTION REQUIREMENTS Structure of an inter-window insulating insert with photovoltaic cells, characterized in that it consists of a frame (1) with fastening clips (3), where the inside of the frame (1) are fitted in the front part 5 horizontal beams (7) on which the solar cells (8) are interconnected by conductors (9), protected by an outer glass (10), fixed in the frame (1) by means of a sealing profile (11) and a flexible mastic (12), between the rear wall (2) and the middle wall (6) is a thermal insulation (4) enclosed in a vapor-permeable film (5). The photovoltaic cell inter-window insulator insert according to claim 1, characterized in that solar cells (8) connected to each other by conductors (9) are arranged on the rotated horizontal beams (7).