Dynamic building photovoltaic curtain wall with sunshade structure

Abstract

The invention relates to the technical field of building photovoltaic integration, and discloses a dynamic building photovoltaic curtain wall with a sunshade structure, which comprises a curtain wall support frame, the plurality of photovoltaic units are distributed at the front end of the curtain wall supporting frame in an array shape; the steel strand driving system comprises a plurality of driving units and a plurality of steel strands, the photovoltaic units are hinged to the driving units, the steel strands are arranged on the curtain wall supporting frame in an array mode and connected with an external power source, and the steel strands move on the curtain wall supporting frame to drive the driving units to move on the curtain wall supporting frame. When the driving unit moves, the angle of the photovoltaic unit is adjusted; and the control module is arranged on the curtain wall supporting frame and used for controlling the movement of the steel strands and the connection state between the driving unit and the steel strands. The problems that an existing building curtain wall is fixed and single in appearance, vertical face photovoltaic application is limited, efficiency is low, lighting and sunshade adjustment is insufficient, and an existing dynamic photovoltaic structure is heavy, complex in linkage and poor in integration with a building are solved.

Description

Technical Field

[0001] This invention relates to the field of building photovoltaic technology, and in particular to a dynamic building photovoltaic curtain wall with a shading structure. Background Technology

[0002] For glass curtain wall buildings, which are widely used in modern architecture, the structure does not play a positive role in economic energy conservation. All-glass curtain walls directly affect interior lighting, with most users relying entirely on artificial lighting while keeping curtains drawn year-round. Meanwhile, existing building photovoltaic (PV) applications are mostly concentrated on rooftops, resulting in insufficient installed capacity due to area limitations, thus having little effect on reducing building carbon emissions. If PV panels are directly fixed to the building facade, the fixed facade orientation prevents angle adjustments with the sun's trajectory, limiting power generation during periods of intense sunlight. Furthermore, they are difficult to coordinate with building functions such as lighting and shading, leading to low energy efficiency. The few variable dynamic PV devices on the market often use heavy-duty drive structures such as gears and hydraulics, which not only increase the building's surface load and affect structural safety, but also have complex linkage mechanisms, making it difficult to achieve synchronous or differentiated dynamic changes across the entire curtain wall. This results in poor integration with the building facade and damages the overall aesthetic appeal of the building.

[0003] Therefore, there is an urgent need for a dynamic building photovoltaic curtain wall with a shading structure to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a dynamic building photovoltaic curtain wall with a shading structure to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a dynamic building photovoltaic curtain wall with a shading structure, comprising:

[0006] Curtain wall support frame;

[0007] Multiple photovoltaic units are arranged in an array at the front end of the curtain wall support frame;

[0008] A steel strand drive system includes multiple drive units and multiple steel strands. The photovoltaic unit is hinged to the drive unit. The multiple steel strands are arranged in an array on the curtain wall support frame and connected to an external power source. The drive unit moves on the curtain wall support frame by moving the steel strands. The angle of the photovoltaic unit is adjusted when the drive unit moves.

[0009] A control module, mounted on the curtain wall support frame, is used to control the movement of the steel strands and the connection status between the drive unit and the steel strands.

[0010] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure is provided, wherein the photovoltaic unit includes at least two photovoltaic panels, the two photovoltaic panels are connected by a hinge, and one end of a connecting rod is hinged to each of the two photovoltaic panels, the other end of the connecting rod being hinged to the driving unit.

[0011] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure is provided, wherein the driving unit includes two driving members, the two driving members respectively move laterally and vertically on the curtain wall support frame, and the two connecting rods are respectively hinged to the two driving members;

[0012] The driving component includes a housing, one end of which is hinged to the connecting rod, and the other end of which is connected to a load-bearing wheel. The curtain wall support frame is provided with multiple vertical slide rails and multiple horizontal slide rails. The load-bearing wheel is slidably connected in the vertical slide rails and the horizontal slide rails. A tensioning member is provided in the housing, and the steel strand passes through the housing and is limited and connected to the tensioning member.

[0013] According to the present invention, a dynamic building photovoltaic curtain wall with a sunshade structure is provided. The tensioning member includes two fixing slots, one of which is fixedly connected to the box body and the other is slidably connected to the box body. The two fixing slots are connected by multiple springs. An electromagnetic relay is provided in the box body. The electromagnetic relay is used to control the electromagnetic adsorption of the two fixing slots. The steel strand is located between the two fixing slots. When the two fixing slots are electromagnetically adsorbed, the steel strand is clamped.

[0014] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure is provided, wherein a rubber pad is fixedly connected in the fixing groove, and the steel strand is located between the two rubber pads.

[0015] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure further includes a tensioner disposed at the end of the steel strand for compensating for the slack of the steel strand.

[0016] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure is provided, wherein the external power source includes multiple servo motors, which are fixedly connected to the curtain wall support frame, and two servo motors are respectively arranged at both ends of the steel strand, and the output end of the servo motor is connected to the steel strand.

[0017] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure is provided, wherein the adjustment angle of the photovoltaic unit includes tilt angle adjustment and azimuth angle adjustment, the tilt angle adjustment range is 0°-30°, and the azimuth angle adjustment range is -90°-90°.

[0018] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure is provided, wherein the control module includes a sensor group and a controller, and the sensor group includes at least a light intensity sensor, a temperature and humidity sensor and a photovoltaic panel output power monitor.

[0019] According to the present invention, a dynamic building photovoltaic curtain wall with a shading structure is provided, wherein the photovoltaic unit supports at least the following three modes:

[0020] Photovoltaic priority mode: The angle of the photovoltaic unit is adjusted by the drive unit driven by the steel strand according to the solar azimuth and elevation angle;

[0021] Shading-lighting balance mode: The angle of the photovoltaic unit is adjusted by the drive unit driven by the steel strand according to the indoor environmental parameters;

[0022] Dynamic appearance mode: According to the preset dynamic light and shadow pattern, the drive unit is driven by the steel strand to adjust the angle of all or part of the photovoltaic units.

[0023] Compared with the prior art, the present invention has the following advantages and technical effects:

[0024] This invention provides a dynamic building photovoltaic (PV) curtain wall with a shading structure. It employs a steel strand matrix combined with a disengaged drive unit, enabling angle adjustment of all PV units in the entire curtain wall array. This significantly reduces the number of drive components, lowering costs and maintenance complexity. It allows for independent or coordinated adjustment of the angle of any PV unit, achieving a high degree of control freedom. Through a dedicated control module, the overall structure integrates power generation, shading, daylighting adjustment, and a dynamic building appearance, operating according to different priority strategies, resulting in high overall efficiency. This invention solves the problems of existing building curtain walls with fixed and monotonous appearances, limited and inefficient facade PV applications, insufficient daylighting and shading adjustment, and the bulky, complex, and poorly integrated dynamic PV structures of the past. It provides a variable-appearance PV curtain wall structure based on lightweight steel strand drive, achieving dynamic appearance, efficient integration of facade PV, intelligent adjustment of daylighting and shading, and harmonious integration with the building's form. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the photovoltaic panel installation state according to the present invention;

[0027] Figure 2 This is a schematic diagram of the photovoltaic panel adjustment state according to the present invention;

[0028] Figure 3 This is a schematic diagram of the steel strand drive system of the present invention;

[0029] Figure 4 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the photovoltaic priority mode for the curtain wall of the present invention;

[0031] Figure 6 This is a schematic diagram of the dynamic appearance mode of the curtain wall according to the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0033] The components include: 1. Curtain wall support frame; 2. Steel strand; 3. Photovoltaic panel; 4. Hinges; 5. Connecting rods; 6. Box body; 7. Load-bearing wheels; 8. Vertical slide rail; 9. Horizontal slide rail; 10. Fixing groove; 11. Spring; 12. Electromagnetic relay; 13. Rubber pad; 14. Gear; 15. Gear fixing plate; 16. Spring bolt. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1:

[0037] Reference Figures 1-6 This invention provides a dynamic building photovoltaic curtain wall with a shading structure, comprising:

[0038] Curtain wall support frame 1;

[0039] Multiple photovoltaic units are arranged in an array at the front end of the curtain wall support frame 1;

[0040] The steel strand drive system includes multiple drive units and multiple steel strands 2. The photovoltaic unit is hinged to the drive unit. The multiple steel strands 2 are arranged in an array on the curtain wall support frame 1 and connected to an external power source. The drive unit moves on the curtain wall support frame 1 by moving the steel strands 2. The angle of the photovoltaic unit is adjusted when the drive unit moves.

[0041] The control module, installed on the curtain wall support frame 1, is used to control the movement of the steel strand 2 and the connection status between the drive unit and the steel strand 2.

[0042] In one embodiment of the present invention, by combining the steel strand drive system, the photovoltaic unit array and the unified frame, the goal of controlling the angle change of a large-area photovoltaic panel with a simplified mechanical transmission mechanism is achieved. This fundamentally simplifies the complex structure of traditional independent drive for each unit, reduces manufacturing costs and failure rate, and lays the foundation for large-scale intelligent control.

[0043] As an optional implementation, the photovoltaic unit includes at least two photovoltaic panels 3, which are connected by a hinge 4. One end of a connecting rod 5 is hinged to each of the two photovoltaic panels 3, and the other end of the connecting rod 5 is hinged to the drive unit.

[0044] In one embodiment of the present invention, a structure in which at least two photovoltaic panels 3 are connected by hinges 4 is adopted, which enables a single photovoltaic unit to have flexible and bendable characteristics. With the connecting rod 5 on the back, the structure efficiently converts the linear motion of the drive unit into the tilt angle and azimuth angle motion of the photovoltaic panel 3, realizing efficient adjustment of two degrees of freedom of a single unit and increasing the flexibility of tracking sunlight.

[0045] As an optional implementation, the drive unit includes two drive components, which move laterally and vertically on the curtain wall support frame 1, respectively, and the two connecting rods 5 are hinged to the two drive components.

[0046] The driving component includes a housing 6, one end of which is hinged to a connecting rod 5, and the other end of which is connected to a load-bearing wheel 7. Multiple vertical slide rails 8 and multiple horizontal slide rails 9 are provided on the curtain wall support frame 1. The load-bearing wheel 7 is slidably connected in the vertical slide rails 8 and the horizontal slide rails 9. A tensioning element is provided inside the housing 6, and the steel strand 2 passes through the housing 6 and is limited and connected to the tensioning element.

[0047] In one embodiment of the present invention, each photovoltaic unit is assigned two independently moving drive components, which are responsible for lateral and vertical driving respectively, thereby realizing the control of the tilt angle and azimuth angle of the photovoltaic unit. The drive component integrates the load-bearing wheel 7 and the guide bearing mechanism of the slide rail, ensuring smooth and stable movement. The scheme of building the tensioning component makes the drive unit structure compact and convenient for distributed arrangement within the curtain wall frame grid.

[0048] As an optional implementation, the tensioning member includes two fixing slots 10, one of which is fixedly connected to the housing 6, and the other fixing slot 10 is slidably connected to the housing 6. The two fixing slots 10 are connected by multiple springs 11. An electromagnetic relay 12 is provided in the housing 6. The electromagnetic relay 12 is used to control the electromagnetic adsorption of the two fixing slots 10. The steel strand 2 is located between the two fixing slots 10. When the two fixing slots 10 are electromagnetically adsorbed, the steel strand 2 is clamped.

[0049] In one embodiment of the present invention, the tensioning member adopts a composite clamping mechanism of spring + electromagnetic locking. The spring 11 separates the two fixing slots 10 from the steel strand 2, and the strong magnetic force generated by the electromagnetic relay 12 after being energized provides rigid clamping. After clamping, the box 6 moves with the steel strand 2.

[0050] As an optional implementation, a rubber pad 13 is fixedly connected inside the fixing groove 10, and the steel strand 2 is located between the two rubber pads 13.

[0051] In one embodiment of the present invention, a rubber pad 13 is provided in the fixing groove 10. On the one hand, the high coefficient of friction of the rubber significantly increases the static friction force on the steel strand 2, ensuring that it will not slip during clamping and that the transmission is accurate and reliable. On the other hand, the elastic properties of the rubber can absorb some of the impact and vibration, and prevent the hard fixing groove 10 from directly abrading the surface of the steel strand 2, thus protecting the transmission components and extending their service life.

[0052] As an optional implementation, a tensioner is also included, disposed at the end of the steel strand 2, for compensating for the slack of the steel strand 2.

[0053] In one embodiment of the present invention, a spring tensioner is provided at the end of the steel strand 2 to automatically compensate for the slack of the steel strand 2 and ensure adjustment accuracy.

[0054] As an optional implementation, the external power source includes multiple servo motors, which are fixedly connected to the curtain wall support frame 1. Each pair of servo motors is respectively set at both ends of the steel strand 2, and the output end of the servo motor is connected to the steel strand 2.

[0055] In one embodiment of the present invention, two servo motors are connected to both ends of the steel strand 2. The servo motors are miniature servo motors, which pull the steel strand 2 in both forward and reverse directions, thereby driving the steel strand 2 to move.

[0056] As an optional implementation, the adjustment angle of the photovoltaic unit includes tilt angle adjustment and azimuth angle adjustment, with the tilt angle adjustment range being 0°-30° and the azimuth angle adjustment range being -90°-90°.

[0057] In one embodiment of the present invention, the photovoltaic unit can be precisely rotated around the horizontal axis by pulling the steel strand 2 in both forward and reverse directions, i.e., tilt angle adjustment, ranging from 0° to 30°, the specific range of which is affected by the length of the connecting rod 5, and azimuth angle adjustment, ranging from -90° to 90°. The servo motor integrates an encoder, which can provide real-time feedback on the adjustment angle.

[0058] As an optional implementation, the control module includes a sensor group and a controller, wherein the sensor group includes at least a light intensity sensor, a temperature and humidity sensor, and a photovoltaic panel output power monitor.

[0059] In one embodiment of the present invention, a light intensity sensor is used to monitor light intensity, an indoor and outdoor temperature and humidity sensor is used to monitor indoor and outdoor temperature and humidity, and a photovoltaic panel output power monitor is used to monitor the output power of the photovoltaic panel. The light intensity sensor and the photovoltaic panel output power monitor directly provide feedback on power generation efficiency, while the temperature and humidity sensor reflects the indoor and outdoor environmental conditions of the building.

[0060] As an optional implementation method, the photovoltaic unit supports at least the following three modes:

[0061] Photovoltaic priority mode: The angle of the photovoltaic unit is adjusted by the drive unit driven by the steel strand 2 according to the solar azimuth and elevation angle;

[0062] Shading-lighting balance mode: The angle of the photovoltaic unit is adjusted by the drive unit driven by the steel strand 2 according to the indoor environmental parameters;

[0063] Dynamic appearance mode: Based on the preset dynamic light and shadow pattern, the drive unit is driven by the steel strand 2 to adjust the angle of all or part of the photovoltaic units.

[0064] In one embodiment of the present invention, the drive motor is controlled based on a preset algorithm or manual command, providing three core intelligent control modes, which endow the curtain wall with multi-dimensional value.

[0065] Photovoltaic priority mode: Based on the real-time solar azimuth and elevation angles, the angle of the photovoltaic units is automatically adjusted to maximize the sun-receiving area during the day (especially during the peak sunshine period from 9:00 to 15:00), thereby increasing the photovoltaic power generation of the facade, directly improving the output of renewable energy, and maximizing the return on investment.

[0066] Shading-lighting balance mode: Combining indoor temperature and light requirements, it adjusts the angle to block strong midday sunlight in summer (reducing indoor heat gain) or introduce natural light in winter (reducing lighting energy consumption), prioritizing indoor comfort. It upgrades the curtain wall from a single power generation device to an active building envelope structure, dynamically adjusting the indoor light and heat environment and improving building energy efficiency and comfort.

[0067] Dynamic Exterior Mode: By controlling the synchronous or zoned pulling of the steel strands 2 of all photovoltaic units through program control, changes in light and shadow (such as gradient stripes, dynamic patterns, brand logos, etc.) are created using angle differences, achieving a switching of the visual form of the entire curtain wall. This approach leverages the media attributes of the curtain wall as a building's facade, enabling artistic and dynamic facade effects through programmable control, significantly enhancing the building's technological feel and identity, and achieving a unity of functionality and aesthetics.

[0068] Example 2:

[0069] Reference Figure 7 The difference between this embodiment and embodiment one is that gears 14 are fixedly connected to the central shaft of the hinge points at both ends of the connecting rod 5. Gear fixing plates 15 are slidably connected to the box 6 and the photovoltaic panel 3 through spring bolts 16. The gear fixing plates 15 have tooth grooves that are adapted to the gears 14. When the gear fixing plates 15 mesh with the gears 14, the time limits the gears 14, thereby ensuring the stability of the hinge points.

[0070] Specifically, it also includes a separate control relay, which is energized to attract the gear fixing plate 15 to separate it from the gear 14, thereby ensuring that the hinge point can rotate.

[0071] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0072] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A dynamic building photovoltaic curtain wall with a shading structure, characterized in that, include: Curtain wall support frame (1); Multiple photovoltaic units are arranged in an array at the front end of the curtain wall support frame (1); The steel strand drive system includes multiple drive units and multiple steel strands (2). The photovoltaic unit is hinged to the drive unit. The multiple steel strands (2) are arranged in an array on the curtain wall support frame (1) and connected to an external power source. The drive unit moves on the curtain wall support frame (1) by moving the steel strands (2). The angle of the photovoltaic unit is adjusted when the drive unit moves. A control module is installed on the curtain wall support frame (1) for controlling the movement of the steel strand (2) and the connection status between the drive unit and the steel strand (2).

2. A dynamic building photovoltaic curtain wall with a shading structure according to claim 1, characterized in that: The photovoltaic unit includes at least two photovoltaic panels (3), which are connected by a hinge (4). One end of a connecting rod (5) is hinged to each of the two photovoltaic panels (3), and the other end of the connecting rod (5) is hinged to the drive unit.

3. A dynamic building photovoltaic curtain wall with a shading structure according to claim 2, characterized in that: The driving unit includes two driving components, which move laterally and vertically on the curtain wall support frame (1), respectively, and the two connecting rods (5) are hinged to the two driving components respectively. The driving component includes a housing (6), one end of which is hinged to the connecting rod (5), and the other end of which is connected to a load-bearing wheel (7). The curtain wall support frame (1) is provided with multiple vertical slide rails (8) and multiple horizontal slide rails (9). The load-bearing wheel (7) is slidably connected in the vertical slide rails (8) and the horizontal slide rails (9). A tensioning member is provided in the housing (6), and the steel strand (2) passes through the housing (6) and is limitedly connected to the tensioning member.

4. A dynamic building photovoltaic curtain wall with a shading structure according to claim 3, characterized in that: The tensioning component includes two fixing slots (10), one of which is fixedly connected to the box body (6) and the other is slidably connected to the box body (6). The two fixing slots (10) are connected by multiple springs (11). An electromagnetic relay (12) is provided in the box body (6). The electromagnetic relay (12) is used to control the electromagnetic adsorption of the two fixing slots (10). The steel strand (2) is located between the two fixing slots (10). When the two fixing slots (10) are electromagnetically adsorbed, the steel strand (2) is clamped.

5. A dynamic building photovoltaic curtain wall with a shading structure according to claim 4, characterized in that: A rubber pad (13) is fixedly connected inside the fixing groove (10), and the steel strand (2) is located between the two rubber pads (13).

6. A dynamic building photovoltaic curtain wall with a shading structure according to claim 1, characterized in that: It also includes a tensioner, which is disposed at the end of the steel strand (2) to compensate for the slack of the steel strand (2).

7. A dynamic building photovoltaic curtain wall with a shading structure according to claim 1, characterized in that: The external power source includes multiple servo motors, which are fixedly connected to the curtain wall support frame (1). Each pair of servo motors is set at both ends of the steel strand (2), and the output end of the servo motor is connected to the steel strand (2).

8. A dynamic building photovoltaic curtain wall with a shading structure according to claim 1, characterized in that: The adjustment angle of the photovoltaic unit includes tilt angle adjustment and azimuth angle adjustment. The tilt angle adjustment range is 0°-30°, and the azimuth angle adjustment range is -90°-90°.

9. A dynamic building photovoltaic curtain wall with a shading structure according to claim 1, characterized in that: The control module includes a sensor group and a controller. The sensor group includes at least a light intensity sensor, a temperature and humidity sensor, and a photovoltaic panel output power monitor.

10. A dynamic building photovoltaic curtain wall with a shading structure according to claim 1, characterized in that: The photovoltaic unit supports at least the following three modes: Photovoltaic priority mode: The angle of the photovoltaic unit is adjusted by the drive unit driven by the steel strand (2) according to the solar azimuth and elevation angle; Shading-lighting balance mode: The angle of the photovoltaic unit is adjusted by the drive unit driven by the steel strand (2) according to the indoor environmental parameters; Appearance dynamic mode: According to the preset dynamic light and shadow pattern, the drive unit is driven by the steel strand (2) to adjust the angle of all or part of the photovoltaic units.

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