Building lighting ceiling with built-in solar light guide plate
By incorporating built-in solar light guides and adjustment components, the design solves the problems of unstable lighting efficiency and insufficient solar energy utilization in skylights, achieving efficient lighting, energy conversion, and intelligent lighting, thereby improving the building's lighting effect and energy utilization efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING FUPING CONSTR DEV CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-28
AI Technical Summary
Existing building skylights have unstable lighting efficiency, are easily affected by weather conditions, do not make full use of solar energy resources, and lack integration with the overall building design, making it difficult to simultaneously meet the needs of efficient lighting and energy harvesting.
Design a building skylight with built-in solar light guide plate, including light guide plate, photoelectric conversion module, adjustment component and LED light strip. The light guide plate absorbs sunlight and converts it into electrical energy through a photosensitive material layer. The light is evenly distributed by using a microprism structure. The angle of the light guide plate is dynamically adjusted by the adjustment component to maximize light energy collection. The LED light strip provides auxiliary lighting.
It improves the uniformity and comfort of indoor lighting, realizes the efficient utilization and storage of solar energy, enhances the intelligence and energy efficiency of the device, adapts to changes in light at different times of the day, and provides auxiliary lighting at night.
Smart Images

Figure CN224173607U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building energy conservation and green building technology, specifically a building skylight with built-in solar light guide plate. Background Technology
[0002] In modern architecture, skylights are widely used as an important architectural design element to improve indoor natural lighting, reduce artificial lighting energy consumption, and enhance the building's aesthetics and sense of space. However, existing skylights still have some shortcomings in practical applications. Traditional skylights typically rely solely on direct transmission of external light sources to achieve their lighting function. Their lighting effect is easily affected by weather conditions, changes in the solar altitude angle, and surrounding environmental obstructions, leading to unstable lighting efficiency. Furthermore, most existing skylights do not fully utilize solar energy resources, failing to convert light energy into other forms of energy for utilization, thus limiting their energy-saving potential and functional expansion.
[0003] On the other hand, with the promotion of green building concepts and the development of renewable energy technologies, solar energy utilization technology has gradually become an important research direction for building energy conservation. However, most solar energy utilization devices currently on the market are independently installed photovoltaic modules or thermal collectors. These devices usually require additional building space and have low integration with the overall building design, affecting the integrated effect of the building's appearance. At the same time, existing technologies lack design schemes that organically combine solar light guiding with building daylighting functions, making it difficult to simultaneously meet the dual requirements of efficient daylighting and energy harvesting.
[0004] Therefore, developing a novel structure that integrates solar light guiding technology with building skylights can not only improve lighting efficiency and stability but also achieve effective utilization of solar energy resources, possessing significant technological value and application prospects. This design is expected to solve the problems of existing skylights' single function and insufficient energy utilization, providing a new solution for building energy conservation and sustainable development. Utility Model Content
[0005] This utility model belongs to the field of building lighting, and in particular relates to a building lighting roof with a built-in solar light guide plate.
[0006] In architectural lighting design, traditional skylights typically rely on natural light to enter the interior directly through glass or other transparent materials. While this method can meet basic lighting needs, it has significant shortcomings in terms of uniform light distribution, energy efficiency, and nighttime illumination. Especially on cloudy days or in low-light conditions, indoor lighting effects decrease drastically. Furthermore, traditional skylights lack effective utilization of solar energy, failing to achieve efficient energy conversion and storage. In addition, existing skylight technologies have complex structures and high maintenance costs, making it difficult to meet the energy-saving, environmentally friendly, and intelligent requirements of modern buildings.
[0007] The purpose of this utility model embodiment is to provide a building skylight with a built-in solar light guide plate, which aims to solve the problems mentioned in the background art.
[0008] This utility model embodiment is implemented as follows: a building skylight with a built-in solar light guide plate includes a skylight frame, a light-transmitting panel on the top of the skylight frame, and further includes:
[0009] The built-in solar light guide component includes multiple parallel light guide plates. The upper surface of the light guide plate is coated with a photosensitive material layer, and the lower surface is provided with a microprism structure. Optical waveguide strips are fixedly connected to both sides of the light guide plate. The ends of the optical waveguide strips are connected to a photoelectric conversion module installed in the ceiling frame. The photoelectric conversion module is used to convert the collected light energy into electrical energy and store it in the battery pack.
[0010] Adjustment assembly; the adjustment assembly is located inside the ceiling frame and includes an adjustment shaft rotatably disposed on both sides of the ceiling frame. Multiple support frames that cooperate with the light guide plate are fixedly connected to the adjustment shaft. One end of the adjustment shaft is driven by a stepper motor through a reducer. The stepper motor is used to drive the adjustment shaft to rotate, thereby adjusting the tilt angle of the light guide plate to adapt to the incident angle of sunlight at different times.
[0011] Preferably, the bottom of the canopy frame is fixedly connected to a light strip mounting groove, an LED light strip is installed in the light strip mounting groove, the LED light strip is electrically connected to the battery pack, and a reflective coating is provided on the inner wall of the light strip mounting groove to enhance the lighting effect of the LED light strip.
[0012] Preferably, the upper surface of the light guide plate is provided with a dustproof coating, and the outer side of the dustproof coating is covered with a removable protective film. The protective film is fixed to the edge of the ceiling frame by a magnetic strip, which is convenient for users to clean or replace regularly.
[0013] Preferably, the photoelectric conversion module includes multiple photovoltaic cells connected in series. The surface of the photovoltaic cells is provided with an anti-reflective film, which is used to improve the light energy absorption efficiency. The output terminal of the photoelectric conversion module is connected to the battery pack through a voltage regulator circuit, which is used to ensure the stability of power transmission.
[0014] Preferably, ventilation slots are provided on both sides of the canopy frame, and temperature-controlled fans are installed in the ventilation slots. The temperature-controlled fans are electrically connected to the battery pack and are used to automatically start and stop according to the internal temperature of the canopy to maintain a suitable working environment.
[0015] Preferably, a rainwater drainage channel is provided at the top of the canopy frame, and a drain pipe is connected to the bottom of the rainwater drainage channel. A filter screen is provided at the outlet of the drain pipe to intercept impurities in the rainwater and prevent blockage of the drainage system.
[0016] The beneficial effects of the building skylight with built-in solar light guide plate provided in this embodiment of the utility model are:
[0017] This device, through its built-in solar light guide component, not only efficiently collects sunlight and converts it into stored electrical energy, but also achieves uniform light distribution through the microprism structure of the light guide plate, significantly improving the uniformity and comfort of indoor lighting. A unique feature is that by adjusting the component settings, the tilt angle of the light guide plate can be dynamically adjusted according to the incident angle of sunlight, thereby maximizing light energy collection efficiency. Furthermore, combined with the LED light strip design, the stored electrical energy can provide auxiliary lighting at night or in low-light conditions, further enhancing its practicality. In summary, this skylight, through its ingenious structural design and functional integration, achieves efficient lighting while also being energy-saving, environmentally friendly, and intelligent, providing a brand-new solution for modern architecture. Attached Figure Description
[0018] Figure 1 This is a front view of an embodiment of the present utility model;
[0019] Figure 2 This is a perspective view of an embodiment of the present utility model;
[0020] Figure 3 This is a schematic diagram of the rear structure of an embodiment of the present utility model;
[0021] Figure 4 This is a cross-sectional view of an embodiment of the present utility model.
[0022] The attached diagram is labeled as follows: 1. Roof frame; 2. Transparent panel; 3. Light guide plate; 4. Photosensitive material layer; 5. Microprism structure; 6. Optical waveguide strip; 7. Photoelectric conversion module; 8. Battery pack; 9. Adjustment shaft; 10. Support frame; 11. Stepper motor; 12. LED strip mounting slot; 13. LED strip; 14. Reflective coating; 15. Dustproof coating; 16. Protective film; 17. Magnetic strip; 18. Photovoltaic cell; 19. Anti-reflective film; 21. Ventilation slot; 22. Temperature-controlled fan; 23. Rainwater drainage channel; 24. Drain pipe; 25. Filter screen. Detailed Implementation
[0023] This utility model provides a building skylight with a built-in solar light guide plate, which combines... Figures 1 to 3 The accompanying drawings and detailed structural design illustrate the specific implementation of the device. The technical solution of this utility model will be fully described below with reference to the accompanying drawings to ensure that the technical content is fully disclosed and feasible.
[0024] like Figure 1 As shown, the building skylight of this utility model includes core components such as a skylight frame 1, a light-transmitting panel 2, a built-in solar light guide component, and an adjustment component. The skylight frame 1 is the main supporting structure of the entire device, made of high-strength aluminum alloy, possessing excellent wind pressure resistance and corrosion resistance, and capable of adapting to various climatic conditions. The light-transmitting panel 2 is fixedly installed on the top of the skylight frame 1, and its material is tempered glass or polycarbonate sheet with high light transmittance, ensuring not only efficient transmission of natural light but also excellent impact resistance, ensuring safety. The lower surface of the light-transmitting panel 2 works in conjunction with the built-in solar light guide component to jointly complete the functions of light collection and distribution.
[0025] The built-in solar light guide component is the core part of this utility model, and its specific structure is as follows: Figure 2As shown, the component includes multiple parallel light guide plates 3. The upper surface of the light guide plates 3 is coated with a photosensitive material layer 4 to absorb sunlight and convert it into light energy signals. A microprism structure 5 is provided on the lower surface of the light guide plates 3. This structure can refract and reflect incident light multiple times, thereby achieving uniform light distribution and significantly improving the uniformity and comfort of indoor lighting. Optical waveguide strips 6 are fixedly connected to both sides of the light guide plates 3. The function of the optical waveguide strips 6 is to transmit the light energy collected by the light guide plates 3 to the photoelectric conversion module 7. The photoelectric conversion module 7 is installed inside the ceiling frame 1 and contains multiple photovoltaic cells 18 connected in series. The surfaces of these cells are coated with an anti-reflective film 19 to improve light energy absorption efficiency. The output of the photoelectric conversion module 7 is connected to the battery pack 8 through a voltage regulator circuit. The voltage regulator circuit ensures the stability of power transmission and prevents damage to the battery pack 8 due to voltage fluctuations. The battery pack 8 stores the electrical energy converted by the photoelectric conversion module 7, providing energy support for auxiliary lighting at night or in other low-light conditions.
[0026] To further optimize light collection efficiency, this invention also includes an adjustment component, the specific structure of which is also reflected in... Figure 1 The adjustment assembly is located inside the canopy frame 1 and includes adjustment shafts 9 rotatably mounted on both sides of the canopy frame 1. Multiple support frames 10, which cooperate with the light guide plate 3, are fixedly connected to the adjustment shafts 9. One end of the adjustment shaft 9 is connected to a stepper motor 11 via a reducer. The stepper motor 11 drives the adjustment shaft 9 to rotate, thereby adjusting the tilt angle of the light guide plate 3. This design allows for dynamic adjustment of the tilt angle of the light guide plate 3 according to the angle of sunlight incidence at different times, maximizing light energy collection efficiency. For example, in the morning and evening, when the angle of sunlight incidence is low, the stepper motor 11 drives the adjustment shaft 9 to rotate, increasing the tilt angle of the light guide plate 3 to better capture low-angle sunlight; while at noon, when sunlight is perpendicular, the stepper motor 11 adjusts the tilt angle of the light guide plate 3 to a smaller value to reduce light loss.
[0027] To enhance indoor lighting at night or in other low-light conditions, this invention also includes a light strip mounting groove 12 at the bottom of the ceiling frame 1, such as... Figure 3As shown, an LED light strip 13 is installed in the light strip mounting slot 12. The LED light strip 13 is electrically connected to the battery pack 8 via wires to provide auxiliary lighting when needed. The inner wall of the light strip mounting slot 12 is coated with a reflective coating 14, which effectively enhances the illumination effect of the LED light strip 13, making the light more evenly distributed in the indoor space. In addition, considering the maintenance needs in actual use, the upper surface of the light guide plate 3 is also provided with a dustproof coating 15, and the outer side of the dustproof coating 15 is covered with a removable protective film 16. The protective film 16 is fixed to the edge of the ceiling frame 1 by a magnetic strip 17. Users can clean or replace the protective film 16 regularly to keep the light guide plate 3 clean and in efficient working condition.
[0028] To further enhance the intelligence level of the device, ventilation slots 21 are provided on both sides of the ceiling frame 1, and temperature-controlled fans 22 are installed in the ventilation slots 21. The temperature-controlled fans 22 are electrically connected to the battery pack 8 and can automatically start and stop according to the internal temperature of the ceiling to maintain a suitable working environment. For example, when the internal temperature of the ceiling is too high, the temperature-controlled fans 22 will automatically start to reduce the temperature through air circulation and prevent the equipment from overheating and causing performance degradation; when the temperature drops below the set value, the temperature-controlled fans 22 will automatically stop running to save energy.
[0029] Furthermore, this invention also considers rainwater management. A rainwater drainage channel 23 is installed at the top of the canopy frame 1, and a drain pipe 24 is connected to the bottom of the rainwater drainage channel 23. A filter screen 25 is installed at the outlet of the drain pipe 24. The filter screen 25 is used to intercept impurities in the rainwater, prevent blockage of the drainage system, and ensure that rainwater can be discharged smoothly. This design not only improves the reliability of the device but also extends its service life.
[0030] In summary, this invention achieves efficient and uniform sunlight collection and distribution through the design of a built-in solar light guide component. Simultaneously, it utilizes an adjustment component to dynamically adjust the tilt angle of the light guide plate 3 to adapt to changes in the incident angle of sunlight at different times, thereby maximizing light energy collection efficiency. Combined with the design of the LED light strip 13, it can provide auxiliary lighting at night or in low-light conditions, further enhancing its practicality. Furthermore, through the design of additional functions such as the temperature-controlled fan 22 and the rainwater drainage channel 23, this invention excels in energy conservation, environmental protection, and intelligent features, providing a brand-new lighting solution for modern buildings.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A building skylight with a built-in solar light guide plate, comprising a skylight frame (1), wherein a light-transmitting panel (2) is provided on the top of the skylight frame (1), characterized in that, Also includes: Built-in solar light guide assembly, the built-in solar light guide assembly includes multiple parallel light guide plates (3), the upper surface of the light guide plate (3) is coated with a photosensitive material layer (4), the lower surface is provided with a micro prism structure (5), the two sides of the light guide plate (3) are respectively fixedly connected with light waveguide strips (6), the end of the light waveguide strips (6) is connected to a photoelectric conversion module (7) installed in the ceiling frame (1), the photoelectric conversion module (7) is used to convert the collected light energy into electrical energy and store it in the battery pack (8); adjustment assembly; the adjustment assembly is located in the ceiling frame (1), the adjustment assembly includes an adjustment shaft (9) rotatably set on both sides of the ceiling frame (1), multiple support frames (10) that cooperate with the light guide plate (3) are fixedly connected on the adjustment shaft (9), one end of the adjustment shaft (9) is connected to a stepper motor (11) through a reducer, the stepper motor (11) is used to drive the adjustment shaft (9) to rotate to adjust the tilt angle of the light guide plate (3).
2. The building skylight with built-in solar light guide plate according to claim 1, characterized in that, The bottom of the ceiling frame (1) is fixedly connected to a light strip mounting groove (12), and an LED light strip (13) is installed in the light strip mounting groove (12). The LED light strip (13) is electrically connected to the battery pack (8), and a reflective coating (14) is provided on the inner wall of the light strip mounting groove (12).
3. The building skylight with built-in solar light guide plate according to claim 1, characterized in that, The upper surface of the light guide plate (3) is provided with a dustproof coating (15), and the outer side of the dustproof coating (15) is covered with a removable protective film (16). The protective film (16) is fixed to the edge of the ceiling frame (1) by a magnetic strip (17).
4. The building skylight with built-in solar light guide plate according to claim 1, characterized in that, The photoelectric conversion module (7) includes multiple photovoltaic cells (18) connected in series. The surface of the photovoltaic cells (18) is provided with an anti-reflective film (19). The output terminal of the photoelectric conversion module (7) is connected to the battery pack (8) through a voltage regulator circuit.
5. The building skylight with built-in solar light guide plate according to claim 1, characterized in that, Ventilation slots (21) are provided on both sides of the roof frame (1), and temperature control fans (22) are installed in the ventilation slots (21). The temperature control fans (22) are electrically connected to the battery pack (8).
6. The building skylight with built-in solar light guide plate according to claim 1, characterized in that, The top of the canopy frame (1) is provided with a rainwater diversion channel (23), the bottom of the rainwater diversion channel (23) is connected to a drain pipe (24), and a filter screen (25) is provided at the outlet of the drain pipe (24).
7. The building skylight with built-in solar light guide plate according to claim 1, characterized in that, The light-transmitting panel (2) is made of tempered glass or polycarbonate sheet with high light transmittance, and the canopy frame (1) is made of high-strength aluminum alloy material.