Photovoltaic module
The photovoltaic module's movable frame design addresses weather-related issues, ensuring efficient energy conversion and protection, enhancing both ecological and economic performance.
Patent Information
- Application Number
- PCT/EP2025/067502
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-21
- Filing Date
- 2025-06-23
- Publication Date
- 2025-12-26
AI Technical Summary
Photovoltaic elements installed on buildings are susceptible to surface soiling, rain, snow, and wind, which can lead to wear and damage, reducing their efficiency and economic viability.
A photovoltaic module with a frame that can be positioned in a guide arrangement, allowing it to move between a protected and operating position, using actuating devices for manual or electric operation, and incorporating guide rails, cables, and drive motors to optimize sunlight exposure for energy generation while shielding from adverse weather.
The solution enhances the protection of photovoltaic elements from weather, ensuring optimal energy conversion and extending the module's lifespan, offering both ecological and economic benefits by minimizing damage and maximizing energy production.
Smart Images

Figure EP2025067502_26122025_PF_FP_ABST
Abstract
Description
[0001] T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 PHOTOVOLTAIC MODULE SCOPE OF INVENTION The invention relates to a photovoltaic module according to the preamble of claim 1. The photovoltaic module comprises a photovoltaic device that can be positioned in a sliding and / or rotatable manner. The photovoltaic module is suitable for mounting on or under a building or facade projection, or on or under a balcony projecting from the building facade with a balcony floor element and a balcony railing, or in a shaft, or on, under, or in front of a window sill, or on a facade. Mounting above a window or above a window sill is also possible, for example. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 The invention also relates to a balcony projecting from a facade according to the preamble of claim 15. The balcony comprises a balcony floor element and a balcony railing.Finally, the invention relates to a building facade according to the preamble of claim 16, wherein the building facade comprises at least one facade projection. TECHNOLOGICAL BACKGROUND The installation of mostly flat, (large-)area photovoltaic elements on roofs and / or facades is known. The aim is to convert sunlight into electrical energy, thus optimizing the building's energy consumption in or on the building, particularly in ecological and / or economic terms. Problematic for photovoltaic elements are surface soiling and the effects of rain, snow, and wind. DESCRIPTION OF THE INVENTION The invention is based on the objective of improving the optimization of energy consumption in and / or on the building, particularly in ecological and / or economic terms, by means of photovoltaic elements.Preferably, the photovoltaic element should be protected from weather influences when there is little or no incident light. This objective is achieved by a photovoltaic module according to claim 1. Embodiments of the invention are the subject of the dependent and collateral claims. Accordingly, the photovoltaic module (hereinafter: PV module) comprises a frame that can be guided in at least one guide arrangement, in which at least one photovoltaic device, in particular a flat device forming a module surface, is arranged. The photovoltaic device comprises one or more arrays of solar cells. Furthermore, the PV module comprises at least one actuating device for positioning the frame on, in front of, under, or at an angle to the building or facade projection, or to the balcony floor element or balcony railing.The operating device can be operated manually or by means of one or more electric drives. For example, the PV module can be located on the underside of a bay window, below a building overhang, or on the underside of a balcony on one of the upper floors of a building. When mounted on the underside of the balcony floor element, the photovoltaic system is particularly well protected from rain, snow, and wind when it is in a (protective) position on the underside of the balcony floor element. The same applies to the underside of a building or facade overhang. There, it would also be protected at night when no sunlight is available. In this way, wear and damage to the photovoltaic element are always avoided when it is protected from the balcony floor element or the building overhang / bay window / etc.The module is protected or shielded, which is also advantageous from an economic and / or ecological perspective. When sunlight strikes it (during the day), the module can be moved from its protected position using the operating mechanism and guided by the guide system, so that it can convert sunlight into electrical energy (it then protrudes, for example, from the facade or balcony railing) and / or shade the facade or balcony (or terrace) area below. The protected position can also be on the balcony floor, preferably next to the inside or outside of the (front and / or side) balcony railing. Even then, it is possible to shade the area below the balcony once the frame has been moved into the operating position of the PV module.The guide arrangement can comprise at least one guide rail, in particular a telescopically extendable one, for example, for guiding guide rollers and / or guide carriages. The guide arrangement can alternatively or cumulatively comprise at least one guide rod, for example, with (section-by-section) toothing or (section-by-section) threading. The guide rail and / or the guide rod can run (section-by-section) vertically and / or (section-by-section) horizontally and / or (section-by-section) bent or curved and / or (section-by-section) with at least one inclination. For (vertical) movement of the frame in the guide arrangement, the actuating device can comprise at least one cable arrangement and / or at least one toothed belt arrangement and / or a chain arrangement with at least one chain.The cable assembly can be routed, for example with pulleys, to a location easily accessible to the user in the balcony or facade area. From there, pulling the cable, for instance, allows the frame to be moved from the (protected) position to the operating position. Releasing the cable tension allows the frame to be moved back. The guide arrangement can be designed such that, in the first movement phase, the frame moves vertically or almost vertically, and in the second movement phase, the frame rotates or pivots to tilt the photovoltaic system. If the protected position is, for example, next to the balcony railing, pulling the cable can move the frame vertically upwards during the first movement phase and pivot it during the second.In the operating position, the cable is fixed to a hook or similar fixture. Releasing the cable tension reverses the frame's movement: First, the frame pivots back so that it is vertically aligned, and then it moves vertically downwards into the protected ground position next to the parapet. The PV module becomes more convenient to operate and, if necessary, controllable (remotely and / or time- and / or parameter-wise) if at least one drive motor is provided to electrically power the operating device. Depending on the design of the guide arrangement, the at least one drive can be located in the area of the balcony floor, in the upper (front or rear) area of the balcony, under the facade overhang, or in the area of a terrace under a facade overhang. A control and / or regulating device can be provided. T 1250110 WO Belu Verwaltungsgesellschaft mbH 23.June 2025, with which at least one electric drive can be controlled and / or regulated. The control and regulation device can also be used to control several PV modules of a complex photovoltaic facade system separately or together. To compensate for the weight force, at least one counterweight and / or a spring element can be provided to relieve the load on the actuating device when the photovoltaic module is actuated. The counterweight can be guided by a cable or belt or arranged on one of the components of the guide assembly. The frame can be moved from a protective position to at least one operating position, wherein the frame movement includes at least a partial movement in the vertical direction, and / or wherein the frame movement includes at least a partial rotation about a module axis of rotation, and / or wherein the frame movement includes at least a partial tilting of the frame.It can also be designed for incremental movement along an incline or along a curved path. In the operating position, or in one of the operating positions, the frame is arranged for effective solar power generation such that sunlight falls perpendicularly to the axis pivoting towards the facade, or perpendicularly or nearly perpendicularly, onto the photovoltaic element arranged in the frame. The photovoltaic system can preferably comprise several photovoltaic elements. The photovoltaic elements can, for example, be arranged to slide relative to each other using laterally mounted, telescopic rail-like extensions. This allows the effective photovoltaic area to be increased in the frame's operating position. It can also be provided that the photovoltaic elements are pivotable relative to each other, with them being at least partially stacked on top of each other in the protective position.The elements are arranged with at least partial surface overlap. In the protective position, the elements are arranged at least partially one above the other or next to each other (overlapping sandwich arrangement). In the operating position, the photovoltaic elements are shifted or pivoted relative to each other and thus moved apart, increasing the effective solar cell area. For pivotable elements, for example, a first element and at least one further element are provided, each element having its own pivot axis, and the elements are arranged parallel and with partial surface overlap in the protective position (pivot angle of both elements 0°). To relieve stress on drive cables, drive motors, and / or components of the guide arrangement, the actuating device may include at least one spring element.The spring element can be designed as a gas pressure damper or spring. A spring force can be transmitted from the spring element to the frame, to a component of the guide arrangement, or to a component of the actuating device, which assists the movement of the frame, at least during a segment of the movement. According to an advantageous embodiment, a linkage arrangement can be provided, which constrains the movement of the frame relative to the guide arrangement, at least in segments. The linkage arrangement can preferably include at least one toggle lever, which enables, in particular controllable, pivoting of the frame relative to the vertical direction when positioning the frame.The toggle lever attachment points can be arranged so that, even when the frame is swung out, the weight of the frame and the photovoltaic element(s) mounted therein can be transferred gently to the components of the guide assembly. At least one guide rail can have at least one recess through which a guide roller or guide slide can be moved. This is advantageous when the linkage, preferably the toggle lever, is required to change the direction of the guide roller or guide slide when positioning the frame. In this way, a single drive (motor) can be used to convert a vertical movement into a pivoting movement when the guide roller / guide slide reaches the recess.The guide arrangement and / or the frame of the PV module can, according to an efficiently manufacturable and assembleable variant, include a lifting-folding mechanism in which at least one carriage can be guided vertically in a rail or on a linkage in each lateral guide. A first pivot joint is arranged in or on the carriage, to which a lower frame section is articulated, i.e., attached by means of a joint arrangement. A second pivot joint is arranged in the upper section of the guide arrangement, to which an upper frame section is articulated, so that the frame can be moved vertically during a first movement phase when moving into the operating position and can be rotated about the second pivot joint during a second movement phase, for example, following the first movement phase.A folding linkage is preferably arranged between the first pivot joint and the frame, which causes the frame to be folded out of the vertical position around the second pivot joint in a controlled manner during the second movement phase. This twisting causes the photovoltaic element to tilt relative to the facade. When the frame is moved back into the protected position, the movement phases occur in reverse order. At least one pivot joint or pair of pivot joints can be height-adjustable, for example, by means of a spindle assembly. Furthermore, an improvement in the optimization of energy consumption in and / or on the building, particularly in ecological and / or economic terms, is achieved with photovoltaic elements, whereby the photovoltaic element is preferably protected from weather influences when there is little or no sunlight, using a balcony according to claim 15.In or on the balcony railing, preferably on the lower part of the balcony railing, and / or on the underside of the balcony floor element, at least one PV module described and claimed herein, which can be positioned in a sliding and / or rotating manner, is arranged. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025. Furthermore, an improvement in the optimization of energy consumption in and / or on the building, particularly in ecological and / or economic terms, is achieved by means of photovoltaic elements, wherein the photovoltaic element is preferably to be protected from weather influences when there is no or little light incidence, with a building facade according to claim 16.Accordingly, at least one photovoltaic module, as described and claimed herein, is arranged on a facade projection of the building facade, preferably on the lower part of the projection, or below the projection, and is movably positionable in a sliding and / or rotating manner. The aforementioned components, as well as those claimed and described in the exemplary embodiments, are not subject to any special exceptions regarding their size, shape, material selection, and technical design, so that the selection criteria known in the field of application can be applied without restriction. All of the PV module variants described and claimed herein can also be suitable for being attached to or next to a building termination, for example, to or next to a gate.It can also be used on a carport, a sales stand (kiosk), or on a land vehicle, for example, a mobile home or caravan (motorhome, campervan) or truck, or on a watercraft (boat). Further details, features, and advantages of the subject matter of the invention will become apparent from the dependent claims, as well as from the following description and the accompanying drawing, in which – by way of example – several embodiments of a PV module are shown. Individual features of the claims or embodiments can also be combined with other features of other claims and embodiments. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 BRIEF DESCRIPTION OF THE FIGURES In the drawing, Fig. 1A / B shows a first variant of a PV module, mounted under a balcony floor element, in various views / positions.2 Another variant of a PV module, mounted under a balcony floor element, in various views / positions, Fig. 3A / B Another variant of a PV module, mounted under a balcony floor element, in various views / positions, Fig. 4 Another variant of a PV module, mounted under a balcony floor element, in various views / positions, Fig. 5A-C Another variant of a PV module, mounted under a balcony floor element, in various views / positions, Fig. 6 A variant of a PV module, mounted in a balcony railing, in various views / positions, Fig. 7 Another variant of a PV module, mounted in a balcony railing, in various views / positions, Fig. 8 Another variant of a PV module, mounted in a balcony railing, in various views / positions, Fig.Fig. 9A / B another variant of a PV module, mounted in a balcony railing, in different views / positions, T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 Fig. 10 a variant of a PV module, mounted on a balcony railing, in side section view (with detail), Fig. 11 another variant of a PV module, mounted on a balcony railing, in different views / positions (with detail), Fig. 12A / B another variant of a PV module, mounted on a balcony railing, in different views / positions (with detail), Fig. 13 another variant of a PV module, mounted on a balcony railing, in different views / positions (with detail), Fig. 14A / B another variant of a PV module, mounted on a balcony railing, in different views / positions (with detail), Fig.Fig. 15 Another variant of a PV module, mounted on a balcony railing, in various views / positions (with detail), Fig. 16 Another variant of a PV module, mounted on a balcony railing, in various views / positions (with detail), Fig. 17 Another variant of a PV module, mounted on a balcony railing, in various views / positions, Fig. 18A / B Another variant of a PV module, mounted on a balcony railing, in various views / positions, Fig. 14A / B Another variant of a PV module, mounted on a balcony railing, in various views / positions, Fig. 20 Another variant of a PV module, mounted on a balcony railing, in various views / positions, T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 Fig. 21A / B Another variant of a PV module, Mounted on a balcony railing, in various views / positions, Fig.Fig. 22 Another variant of a PV module, mounted on a balcony railing, in various views / positions. Fig. 23 Another variant of a PV module, mounted under a building overhang, in various views / positions. Fig. 24 Another variant of a PV module, mounted under a building overhang, in various views / positions. Fig. 25 Another variant of a PV module, mounted under a building overhang, in various views / positions. Fig. 26 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail). Fig. 27 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail). Fig. 28 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail).29 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail), Fig. 30 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail), T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 Fig. 31 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail), Fig. 32 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail), Fig. 33 Another variant of a PV module, mounted under a building overhang, in various views / positions (with detail), Fig. 34A-C Another variant of a PV module, mounted under a building overhang, in various views / positions, Fig.Figure 35A-C shows another variant of a PV module mounted under a building overhang, in various views / positions (with detail), and Figure 36 shows another variant of a PV module mounted under a building overhang, in various views / positions. DETAILED DESCRIPTION OF EXAMPLES OF EXECUTION Figures 1A and 1B show a PV module 1 with a frame 3 guided in a guide arrangement 2, in which photovoltaic elements 4 are arranged. Figure 1A shows a side sectional view, with the frame 3 positioned in the operating position. In the operating position, the photovoltaic elements 4 are angled so that they protrude at an angle from the front balcony boundary.Ideally, sunlight strikes the module surface 5 of the photovoltaic elements 4 perpendicularly or almost perpendicularly, or perpendicularly with respect to the facade axis, so that electrical energy can be produced by the solar cells of the photovoltaic elements 4 when light is incident. The electrical energy produced in this way can be made available to a consumer on the balcony 6 or in the building, or stored in an electrical energy storage system for later use. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 Fig. 1B shows a side sectional view, with the frame 3 positioned in the protective position. The photovoltaic elements 4 are arranged with a small gap below the upper balcony floor element 7 of an upper-story balcony 6, so that they are protected from dirt, rain, snow, and wind.This positioning is recommended, for example, late in the evening and at night when sunlight is insufficient for the photovoltaic elements 4 to produce electrical energy. In the protective position, the photovoltaic elements 4 are protected from rain, snow, wind, and dirt, such as leaves, by the balcony floor element 7. The frame 3 of the PV module 1, as shown in Figures 1A / B, is guided in a guide arrangement 2 when moving from the protective position (Fig. 1B) to the operating position (Fig. 1A) and vice versa. The guide arrangement 2 comprises a vertical guide rail 8, in which a guide carriage 9 can be moved vertically up and down, and a horizontal guide rail 8 in which a frame pivot axis 10 of the frame 3 can be moved horizontally.A cable 11 of the actuating device 12 is attached to the pivot axis 10 and is guided laterally and downwards via pulleys 13 of the actuating device 12. By pulling on the cable 11, the frame 3 is drawn under the balcony floor element 7 until it has assumed the protective position shown in Fig. 1B. In this position, the cable 11 is fixed in a hook 14. When the cable is released, the frame 3 is moved into the operating position (Fig. 1A), whereby a pivot arm 15, rotatably attached to the lower part of the frame 3, causes the frame 3 to pivot about the frame pivot axis 10. The frame movement thus comprises a horizontal component (constrained by the horizontal guide rail 8) and a vertical component (constrained by the pivot arm 15). The articulated arm 15 is rotatably attached to the guide carriage 9.It may be provided that at least one spring element 16 is arranged between frame 3 and articulated arm 15 or between articulated arm 15 and vertical guide rail 8, so that the frame 3 can be moved out of the protective position when the cable pull 11 is released. As soon as the frame 3 moves out of the protective position, the frame movement is assisted by the weight of the frame 3. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025. In a PV module variant, the frame 3 can be moved by means of an electric motor 17. The motor 17 can be arranged at the rear end of the horizontal guide rail 8. The motor 17 can drive a toothed belt or a threaded rod, thereby effecting the linear movement of the carriage 18 arranged at the upper part of the frame 3. Furthermore, the kinematics of frame 3 when approaching the operating or protective position is comparable to the kinematics according to the arrangement shown in Figures 1A / B.Connecting elements 19, such as a (drive) shaft, can be provided between the components of the guide arrangement 2 on the right side of the balcony and the components of the guide arrangement 2 on the left side of the balcony, so that drive motors 17 are only required on one side of the balcony per PV module 1. Figure 2 shows a view or frame positions of a PV module 1 with two drive motors 17. The first drive motor 17 is arranged at the rear (right) end of the horizontal guide rail 8 and causes a horizontal movement of the carriage 18 of the frame 3. The second motor 17 is arranged in the front area below the (upper) balcony floor element 7 and causes a vertical movement of the articulated arm 15.With the arrangement according to Figure 2, in addition to the protective position and the operating position with the frame 3 angled, a vertical position is also possible, in which the frame 3 is vertically oriented and thus shields the balcony front. This can be useful when the sun is very low (early morning and late afternoon / evening), and, for example, when the user desires at least partial privacy protection. In the PV module 1 according to Figure 2, the horizontally extending guide rail 8 of the guide arrangement 2 is located directly below the underside of the (upper) balcony floor element 7. The arrangement according to Figures 3A / B is similar to the arrangement according to Figure 2, except that in Figures 3A / B the horizontal guide rail 8 is spaced away from the underside of the (upper) balcony floor element 7. With this arrangement, the photovoltaic elements 4 can be installed in the protective position of the T 1250110 WO Belu Verwaltungsgesellschaft mbH 23.In June 2025, the frame 3 can be arranged directly below the underside of the (upper) balcony floor element 7, which enhances the protective effect in the protected position and makes the upper area of the balcony 6 more aesthetically pleasing when the frame 3 is in the protected position. In one PV module variant, the motor 17 for the vertical movement of the guide carriage 9 can be located in the area of the floor element 7 of the (lower) balcony 6. In this drive variant, the movable components of the guide arrangement 2 can be driven, for example, by cables 11. Since a shaft would be disruptive in the floor area, it is advantageous to install a drive motor 17 on each side of the balcony in the floor area. In all PV module variants, particularly those shown in Figures 1A to 3B, it can be provided that several photovoltaic elements 4 are arranged in the frame 3, both one above the other and parallel to each other.The photovoltaic elements 4 can be moved relative to each other by means of telescopically extendable and retractable slides 20, so that the effective module area 5 of the photovoltaic elements 4 can be increased, for example, doubled or tripled. This is illustrated by way of example in the PV module variant according to Figure 4. In the vertical position, the overlapping photovoltaic elements 4 can be "telescoped" vertically apart so that the entire balcony front is shielded by the photovoltaic elements 4. In a protective position, the overlapping stack of photovoltaic elements can be arranged in the protected position below the (upper) balcony floor element 7.In the variant according to Figures 5A to 5C, the drive (17) for the vertical movement of the guide carriage 9 is arranged vertically spaced from the horizontal guide rail 8 in the vertical guide rail 8 in order to increase the clearance between the horizontal guide rail 8 and the drive (17). This arrangement allows the frame 3 to pivot into the preferably and / or substantially horizontal movement section at a larger angle or with a smaller radius. The arrangement according to Figures 1A to 5C can be arranged not only on the underside of a balcony floor element 7 of an upper-story balcony 6, but also under a building projection, such as on a canopy or on the upper edge of a terrace, or on a garage, carport, on or above a garage door, on or under a free roof section, etc.In addition to the photovoltaic energy optimization effect, depending on the building design, shading and thus cooling of an area below the PV module 1 can also be achieved. This can also offer economic and / or ecological advantages, as the shaded area, for example, requires less air conditioning. The PV module variants according to Figures 6 to 9B relate to arrangements that can be mounted in or on a balcony railing 21. Mounting in a shaft, for example on / in a terrace, or on / in a grandstand or on / in a barrier, for example of a playing field, such as a sports facility, is also possible. Mounting on a facade is also possible. The PV module variant according to Figures 6 to 9B shows various lateral sectional views of different frame positions of the PV module 1.For example, the frame 3 can be positioned in the protective position of the arrangement in a cavity 22 or in a vertically accessible insertion space of the balcony railing 21. In this way, the frame 3 of the PV module 1 with the photovoltaic elements 4 will be not visible or barely visible to the user in the protective position. Furthermore, the arrangement according to Figures 6 to 9B guarantees that the user does not need to carry out any mounting measures on the underside of the (upper) balcony floor element 7. For example, by means of a cable arrangement 11 and a deflection pulley 13 arranged in the upper terrace / balcony area, the frame 3 with the photovoltaic elements 4 can be moved vertically upwards out of the protective position (vertical directional component of the frame movement). By means of a lever T 1250110 WO Belu Verwaltungsgesellschaft mbH 23.June 2025 and / or joint arrangement 23, when moving into the operating position (Fig. 6), the frame 3 can be pivoted out of the parapet plane in a subsequent frame movement section so that it then projects out of the parapet plane at an angle to the vertically running balcony parapet plane. In a further frame position, the pivot angle of the frame 3 can be approximately 0° or almost 0°, even though the frame 3 has already been moved out of its protective position (vertically upwards). In this vertical position of the frame 3, both are achieved: electrical energy generation when exposed to sunlight and shielding of the front of the balcony 6. In the side section view according to Fig. 6, it is schematically shown that the photovoltaic elements 4 in the frame 3 are arranged in a "sandwich-like" (overlapping) manner and can be moved relative to each other by means of telescopic rail guide 20 and extended ("telescoping") to increase the module area.This feature is also shown by way of example in the variants according to Figures 7 to 9B. In contrast to the variant according to Figure 6, the PV module variant according to Figure 7 includes a spring element 16 arranged in the area of the guide arrangement 2, which assists the movement, in particular the pivoting out, of the frame 3, especially against the effect of the sum of the weight forces of frame 3 and photovoltaic elements 4, optionally telescopic rail extensions 20, and optionally a linkage arrangement 23. In the PV module variant according to Figure 7, a cable pull 11 is provided, in the variant according to Figure 8, a vertically extending guide rail 8 and a guide carriage 9 attached to the frame 3. In the PV module variant according to Figures 9A and 9B, neither a guide roller arranged in the upper balcony area nor a vertically extending guide rail is provided.The vertical movement of the frame 3 in the variant according to Figures 9A / B follows a vertically extending telescopic rail guide. The frame 3 is, in a sense, "telescoped out" of a cavity or insertion space 22 in the balcony parapet 21 or from a shaft arranged in a terrace with cavity 22. The advantage of this variant is that no components (rails, pulleys for cables) of the guide assembly 2 need to be mounted on the lateral terrace / shaft or balcony boundary. This offers at least an aesthetic advantage, but also an advantage with regard to cleaning and maintenance of the guide assembly 2. For moment support, an (inlet) funnel 41 can be provided on the upper building projection or floor element 7, in which the frame 3 can be arranged in the operating position.The PV module variants according to Figures 10 to 22 are suitable for mounting on the (front and / or side) outer surface of the balcony railing 21. The protective position of the frame 3 is characterized, among other things, by the fact that the frame 3 with the photovoltaic elements 4 arranged therein or on it is positioned vertically or almost vertically and thus parallel or almost parallel to the outer surface of the (front and / or side) balcony railing 21. In this protective position, the photovoltaic elements 4 are protected from the effects of rain, snow, and / or wind, as well as from soiling of the module surface 5. The operating position is characterized by the fact that a lever is manipulated between the front surface of the (front and / or side) outer surface of the balcony railing 21, thereby bringing the frame 3 into an inclined position.The PV module variants according to Figures 10 to 22 differ essentially in their joint or toggle lever arrangements: In the variant according to Fig. 10, a multi-part joint arrangement 23 is provided, with a first joint lever 15 having a fixed and a free pivot point 24 and a second joint lever 15 rotatably arranged on the frame 3, also with a free and a fixed pivot point 24. The second joint lever 15 serves as a driven pivot lever, arranged on a toothed belt pulley 25. A motor 17 or a crank can be provided as the drive. In the PV module variant according to Fig. 11, the joint arrangement 23 according to Fig. 12 is kinematically supported by means of a cable pulley 11. T 1250110 WO Belu Verwaltungsgesellschaft mbH 23.June 2025 In the PV module variant according to Figures 12A and 12B, the carriage 18, driven by a toothed belt and drive mechanism, moves from its protective position against a ramp 26, causing the frame 3 to tilt relative to the outer balcony railing surface. In a subsequent movement phase, the frame 3 pivots so that it protrudes (obliquely) from the surface of the balcony railing 21. In the variant according to Figure 13, this kinematics are supported by a tension spring element 16 arranged in the guide assembly 2. The variant according to Figures 14A and 14B includes a counterweight 27 attached to the carriage 18 to support the frame kinematics. In the PV module variant according to Figure 15, a leg spring element 16 is provided.In the PV module variant according to Figure 16, a guide rail 8, extending vertically in sections, is provided for the carriage 18, with the guide rail 8 having an outwardly oriented angle in its lower section. This angle ensures the inclined position of the frame 3 when approaching the operating position. In the PV module variant according to Figure 17, the guide arrangement 2 includes a concealed toggle joint 28, while the variant according to Figures 18A and 18B includes a counterweight 27. Figures 19A / B and 20 each show a sectional view of two frame positions of two PV module variants, in which a horizontally extending guide rail 8 is arranged below the parapet 21 and partially below the balcony floor element 7 to absorb large leverage forces. This variant is suitable for large or heavy frames / photovoltaic elements (3, 4).In this and the following module variants, mounting on or below a building projection 30 is also possible, whereby, for the sake of simplicity, the following description of the figures refers only to the parapet 21. When the frame 3 is moved (swiveled), it is supported downwards by means of a linkage with an articulated arm 15. In the variant according to Fig. 20, the vertically extending guide rail 8, arranged on the outside of the parapet 21, is movable in the vertical direction via a telescopic rail extension 20 that is movable parallel to the parapet 21. With this arrangement, the frame 3 can be moved so that, in addition to the swiveling movement, it has a movement component in the vertical direction (preferably downwards), so that the area under the balcony floor element 7 can be better shaded. The PV module variant according to Fig.Figures 21A and 21B show a PV module 1 with a multi-part frame 3, namely a first frame part 29 and a second frame part 29. When the frame 3 is moved into the operating positions (Fig. 21B), both frame parts 29 are pivoted about parallel frame part pivot axes relative to a guide rail 8 that is at least partially vertical. The pivoting movements of the frame parts 29 are constrained by means of a carriage 18 and a linkage arrangement with a joint arrangement 23. The guide rail 8 can have a curve in its lower region so that it is partially located below the parapet 21. The frame parts 29 can be pivoted separately (Fig. 21A) or together (Fig. 21B). In the protected position (Fig. 23A), the frame parts 29 are oriented vertically or almost vertically and overlap at least partially.In the PV module variant according to Figure 22, the horizontally extending guide rail 8 of the guide arrangement 2 is spaced away from the underside of the balcony floor element 7, so that the frame runs parallel or almost parallel to the underside of the balcony floor element even in the protective position. Figures 23 to 36 show variants of PV modules 1 which are mounted under a building overhang 30, each in different frame positions, some with technical detail illustrations. The variants according to Figures 23 to 36 can also be mounted under a balcony floor element (7) or on a building canopy. The PV modules of the variants according to Figures 23 to 36 each have at least one guide rail 8 and at least one guide carriage 9 or trolley 18. In the variant according to Figure 23, the guide rail 8 is partially T 1250110 WO Belu Verwaltungsgesellschaft mbH 23.June 2025, horizontally aligned and rounded at the front end. In the variant according to Figure 24, the guide rail 8 is inclined so that the distance of the guide rail 8 to the underside of the building projection 30 is greater at the front end than at the rear end. This causes the frame 3 to move from the protective position to the operating position automatically when the cable pull 11 is released, due to the influence of the weight force. A photovoltaic element 4 and a cover 40 are arranged at least partially within the frame 3. The cover 40 can be formed as a filler plate, with the surface of the photovoltaic element 4 (module area 5) and that of the filler plate 40 lying in the same plane and thus fitting flush against each other. According to Figure 25, a linear drive 31 is provided, which effects the inclined position of the frame 3.For the horizontal component of the frame movement, a drive motor 17 is provided at the rear end of the guide rail 8. Additionally, a locking bolt 32 with a spring 16 can be provided. The PV module variant according to Figures 26 and 27 includes at least one spiral compression or gas compression spring 33 and a locking bolt 32. The frame 3 can be driven by a cable drive, toothed belt, or by pushing. In the variant according to Figure 28, a toothed belt drive is provided, as well as a carriage 18 with a pawl 34. The variant shown in Figure 29 includes a catch claw 35 and a guide rail 8 with a recess 36. The carriage 18 is driven by a toothed belt, and the tilting is achieved with a linear drive 31. In the variant according to Figure 30, the carriage 18 includes a toggle lever 28. A drive cable 11 and a moving carriage 37 are also provided.The variant shown in Figure 31 depicts a carriage 18 which, via a recess 36 in the guide rail 8, converts the horizontal movement of the frame 3 into a pivoting movement. For this purpose, the guide rail 8 includes a branch with a curve. A PV module variant with telescopic photovoltaic elements 4 T 1250110 WO Belu Verwaltungsgesellschaft mbH, June 23, 2025, is shown – by way of example – in Figure 32, and a variant with an inclined guide rail is shown in Figure 33. In the PV module variant shown in Figures 34A to 34C, a drive cable 11 and a pivot cable 38 are provided, with which the guide rail 8 can be raised / lowered in the front area, so that the frame 3 can be moved, at least partially, by means of gravity. In the variant according to Figures 35A to 35C, an additional driver 39 with pawl 34 and spring 16 is provided. The version according to Figure 36 comprises a linkage lever arrangement 23 with several joints and levers.
[0002] T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 REFERENCE SYMBOL LIST 1 PV module 2 Guide arrangement 3 Frame 4 Photovoltaic elements 5 Module area 6 Balcony 7 Balcony floor element 8 Guide rail 9 Guide carriage 10 Articulated axle 11 Cable (pull) 12 Actuating device 13 Deflection pulley 14 Hook 15 Articulated arm / lever 16 Spring element 17 Electric motor 18 Carriage 19 Connecting element 20 Extension 21 Parapet 22 Cavity 23 Lever / joint arrangement 24 Pivot point 25 Toothed belt pulley 26 Ramp 27 Counterweight 28 Toggle lever 29 Frame part 30 Building projection T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 31 Linear drive 32 Locking bolt 33 Gas spring 34 Latch 35 Catch claw 36 Recess 37 Carriage 38 Swivel cable 39 Drive pin 40 Cover 41 Funnel
Claims
T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 CLAIMS 1. Photovoltaic module (1) with a photovoltaic device that can be positioned in a sliding and / or rotating manner, wherein the photovoltaic module (1) is suitable for attachment to or under a building or facade projection (30) or to or under a balcony (6) projecting from the building facade with a balcony floor element (7) and a balcony parapet (21), or in a shaft, or on or under or in front of a window parapet, or on a facade, characterized by a frame (3) that can be guided in at least one guide arrangement (2), in which at least one photovoltaic device, in particular a flat device forming a module surface (5), is arranged, and by at least one actuating device (12) for positioning the frame (3) on or in front of or under or at an angle to the building or facade projection (30) or to the balcony floor element (7) or to the balcony railing (21). 2.Photovoltaic module (1) according to claim 1, characterized in that the guide arrangement (2) comprises at least one guide rail (8), in particular a telescopically extendable guide rail, and / or a guide rod.
3. Photovoltaic module (1) according to claim 2, characterized in that the guide rail (8) and / or the guide rod extends at least partially vertically and / or at least partially horizontally and / or at least partially bent or curved and / or at least partially with at least one inclination.
4. Photovoltaic module (1) according to any one of claims 1 to 3, characterized in that the actuating device (12) comprises at least one cable arrangement (11) and / or at least one toothed belt arrangement and / or at least one chain arrangement. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 5. Photovoltaic module (1) according to one of claims 1 to 4, characterized in that at least one drive motor (17) is provided for electrically driving the actuating device (12).
6. Photovoltaic module (1) according to claim 5, characterized in that a control and / or regulating device is provided with which the at least one electric drive (17) can be controlled and / or regulated.
7. Photovoltaic module (1) according to one of claims 1 to 6, characterized in that at least one spring element (16) and / or counterweight (27) is provided for relieving the actuating device (12) when the photovoltaic module (1) is actuated. 8.Photovoltaic module (1) according to one of claims 1 to 7, characterized in that frame (3) is movable from a protective position into at least one operating position, wherein the frame movement at least partially comprises a movement in the vertical direction, and / or wherein the frame movement at least partially comprises a rotational movement about a module rotation axis, and / or wherein the frame movement at least partially comprises a frame tilting position. 9.Photovoltaic module (1) according to any one of claims 1 to 8, characterized in that the photovoltaic device comprises several photovoltaic elements (4) which, preferably, are arranged to be slidably relative to one another by means of laterally mounted, telescopic rail-like extensions (20) in order to increase the effective photovoltaic area, or which, preferably, are pivotable relative to one another, wherein in the protected position they are arranged at least sectionally one above the other or next to one another.
10. Photovoltaic module (1) according to any one of claims 1 to 9, characterized in that the actuating device (12) comprises at least one spring element. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 comprises (16), whereby a spring force can be transmitted to the frame (3) or to a component of the guide arrangement (2) or to a component of the actuating device (12), which has a movement-supporting effect at least during a movement segment when moving the frame (3).
11. Photovoltaic module (1) according to one of claims 1 to 10, characterized in that at least one linkage arrangement (23) is provided with which the movement of the frame (3) relative to the guide arrangement is constrained at least segmentally, wherein the linkage arrangement (23) preferably comprises at least one toggle lever (28) with which a pivoting of the frame (3) relative to the vertical direction is achieved, in particular in a controllable manner, when positioning the frame (3). 12.Photovoltaic module (1) according to claim 11, characterized in that at least one recess (36) is provided in at least one guide rail (8) through which a guide roller or a guide slide (9) can be moved when a change in direction of the guide roller or the guide slide (9) is provided by the linkage, preferably by the toggle lever (28), when positioning the frame (3). 13.Photovoltaic module (1) according to one of claims 1 to 12, characterized in that the guide arrangement (2) and / or the frame (3) comprises a lifting-folding mechanism in which at least one slide (9) is vertically guideable in a rail or on a linkage in each lateral guide, wherein a first pivot joint is arranged in or on the slide (9) to which a lower frame area is articulated, and wherein a second pivot joint is arranged in the upper area of the guide arrangement to which an upper frame area is articulated, whereby the frame (3) is vertically movable during a first movement phase when moving into the operating position and during a movement phase on the first movement phase. T 1250110 WO Belu Verwaltungsgesellschaft mbH June 23, 2025 subsequent second movement section is rotatable about the second pivot joint.
14. Photovoltaic element according to claim 13, characterized in that at least one pivot joint is height-adjustable, in particular by means of a spindle arrangement.
15. Balcony (6) projecting from a facade with a balcony floor element (7) and a balcony railing (21), characterized in that at least one photovoltaic module (1) according to one of claims 1 to 14, which can be slidably and / or rotatably positioned, is arranged in or on the balcony railing (21), preferably on the lower area of the balcony railing (21), and / or on the underside of the balcony floor element (7). 16.Building facade comprising at least one facade projection (30), characterized in that at least one photovoltaic module (1) which can be moved and / or rotated into position according to one of claims 1 to 14 is arranged on the facade projection (30), preferably on the lower area of the facade projection, or under the facade projection (30).
Citation Information
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