Groove type compound paraboloid light guide photoelectric integrated lighting device

Abstract

The utility model provides a groove type compound paraboloid light guide photoelectric integrated lighting device which can overcome the defects, achieve efficient light condensation and effective light guide and combine the power generation function. The groove-type compound paraboloid light guide photoelectric integrated lighting device comprises a groove-type compound paraboloid condenser, a light guide cavity and a groove-type compound paraboloid condenser, wherein the groove-type compound paraboloid condenser is used for focusing part of solar rays and transmitting the solar rays to the light guide cavity; the groove type compound paraboloid condenser is also used for focusing the other part of solar rays on the solar photovoltaic module; a diffuser is arranged at a light outlet of the light guide cavity, and the light guide cavity is used for transmitting light transmitted by the groove type compound paraboloid condenser to the diffuser; the diffuser is used for scattering light into a use environment to realize a lighting function; and the solar photovoltaic module is used for directly converting the gathered light into electric energy.

Description

Technical Field

[0001] This utility model relates to a lighting device, specifically a slotted composite parabolic light guide integrated photoelectric lighting device, belonging to the field of solar light guide and photoelectric design technology. Background Technology

[0002] In the field of natural light guide lighting, most existing technologies are light guide lighting and fiber optic lighting, which illuminate by directly transmitting light or by transmitting focused light. However, they also have the following drawbacks in practical applications:

[0003] (1) The application scenarios of light guides are limited, the area of ​​light collected is small, and the light loss gradually increases with the increase of transmission distance, which affects the lighting effect.

[0004] (2) Optical fiber guiding requires the use of equipment that tracks the sun, resulting in the consumption of secondary energy; the optical fiber focusing area is small, requiring multiple equipment to be combined and assembled; the production and processing costs of materials are high, resulting in high overall application costs and relatively high construction difficulty.

[0005] (3) Optical guides and optical fibers are mostly used in the construction field, but due to their obvious shortcomings, it is difficult to promote their application in other fields and there are few application scenarios.

[0006] In conclusion, although current natural light guide lighting technology has significant advantages in energy conservation, emission reduction, and environmental protection, its limitations in practical applications restrict its widespread promotion and application. Utility Model Content

[0007] In view of this, the present invention provides a slotted composite parabolic light guide and photoelectric integrated lighting device, which can overcome the above defects and achieve efficient light focusing, effective light guiding, and power generation function.

[0008] The technical solution adopted in this utility model is: a trough-type composite parabolic light guide and photoelectric integrated lighting device, comprising: a trough-type composite parabolic concentrator for focusing and transmitting part of the sunlight to the light guide cavity; the trough-type composite parabolic concentrator is also used to focus another part of the sunlight onto a solar photovoltaic module;

[0009] A diffuser is installed at the light outlet of the light guide cavity. The light guide cavity is used to transmit the light from the slotted composite parabolic concentrator to the diffuser. The diffuser is used to scatter the light into the environment to achieve the lighting function.

[0010] The solar photovoltaic module is used to directly convert concentrated light into electrical energy.

[0011] As a preferred embodiment of the present invention, the grooved composite parabolic concentrator includes: a light-guiding side reflector, a power-generating side reflector, and an arc-shaped reflector.

[0012] The light-guiding side reflective surface and the power-generating side reflective surface are semi-parabolic surfaces arranged opposite each other with their openings facing upwards; a light guide opening is left at the lower end between the light-guiding side reflective surface and the power-generating side reflective surface.

[0013] The curved reflector is located inside the trough-type composite parabolic concentrator at the light guide port; the lower end of the curved reflector is connected to the lower end of the power generation side reflector; the curved reflector is used to receive the light reflected by the light guide side reflector and further reflect the light into the light guide cavity.

[0014] In a preferred embodiment of this utility model, the center of the curved reflector is located on the center line O, which is the center line of the parabolic two-dimensional shape of the light-guiding side reflector.

[0015] In a preferred embodiment of this utility model, the opening between the upper end of the light-guiding side reflective surface and the power-generating side reflective surface is a light inlet, and a glass cover plate is provided at the light inlet.

[0016] In a preferred embodiment of this invention, the reflective surface area of ​​the light-guiding side reflective surface is larger than the reflective surface area of ​​the power-generating side reflective surface.

[0017] In a preferred embodiment of this utility model, the light-guiding side reflective surface is a complete semi-parabolic surface, and the power generation side reflective surface is a semi-parabolic surface with a notch, wherein the notch is a light guide port.

[0018] In a preferred embodiment of this utility model, the solar photovoltaic module is disposed inside the trough-type composite parabolic concentrator and includes two solar photovoltaic panels placed at an angle, namely a first solar photovoltaic panel and a second solar photovoltaic panel.

[0019] The lower end of the second solar photovoltaic panel is connected to the lower end of the power generation side reflector; the lower end of the first solar photovoltaic panel 3 is connected to the upper end of the curved reflector.

[0020] In a preferred embodiment of this utility model, a support plate is provided inside the space formed by the curved reflector 8 and the solar photovoltaic module. One end of the support plate is connected to the lower end of the first solar photovoltaic panel, and the other end is connected to the second solar photovoltaic panel. The upper end of the curved reflector is connected to the light guiding cavity reflected by the support plate.

[0021] The transmission mirror assembly is used to directionally transmit light within the light guide cavity;

[0022] The light-emitting mirror assembly is used to guide light to the diffuser.

[0023] In a preferred embodiment of the present invention, the incident lens assembly includes a first incident lens and a second incident lens; wherein the upper end of the first incident lens is connected and fixed to the power generation side reflector, and the lower end is connected to the upper end of the second incident lens; the first reflector is deflected outward relative to the curved reflector, and the second incident lens is deflected outward relative to the first reflector.

[0024] The transmission mirror assembly includes a first transmission mirror and a second transmission mirror; wherein the upper end of the second transmission mirror is connected and fixed to the light guide side reflective surface, the first transmission mirror and the second transmission mirror are parallel and opposite to each other, and the upper end of the first transmission mirror is connected to the lower end of the second incident mirror.

[0025] The light-emitting lens group includes a first light-emitting lens and a second light-emitting lens, wherein the first light-emitting lens and the second light-emitting lens are arranged opposite to each other, the upper end of the second light-emitting lens is connected to the lower end of the second transmission lens, and the upper end of the first light-emitting lens is connected to the lower end of the first transmission lens.

[0026] The opening between the lower ends of the first and second light-emitting mirrors is the light-emitting port, and the diffuser is located at the light-emitting port, with its two opposite ends connected to the first and second light-emitting mirrors respectively.

[0027] In a preferred embodiment of this invention, the lighting device is enclosed by side plates on both sides of its lateral direction, forming a sealed light environment.

[0028] Beneficial effects:

[0029] (1) In this invention, light can be sequentially transmitted along the light-guiding side of the device (i.e., the side where the light-guiding side reflector is located) according to the installation positions of each reflector in the light-guiding cavity, thus achieving initial focusing and light guiding. At the same time, light is focused onto the solar photovoltaic module through the power generation side of the device (i.e., the side where the power generation side reflector is located) by the power generation side reflector. Part of the light incident in the lighting device directly irradiates the solar photovoltaic panel, realizing simultaneous light guiding and photoelectric effects, so that all the light incident in the slot is transmitted and utilized for photoelectric effects.

[0030] (2) In this invention, the design of the trough-type composite parabolic concentrator (including a light guide and an arc-shaped reflector) enables efficient focusing of sunlight. The combination of the light-guiding side reflector and the power-generating side reflector allows light to be initially focused on the light-guiding side reflector and then transmitted to the light-guiding cavity by the arc-shaped reflector. On the power-generating side, light is focused onto the solar photovoltaic module by the power-generating side reflector, achieving simultaneous light guiding and photoelectric generation. This ensures that the light incident on the device is fully utilized, achieving efficient utilization of the entire spectrum for both light guiding and power generation. This high-efficiency concentrating technology significantly improves the conversion efficiency of solar energy and reduces energy waste.

[0031] (3) In this utility model, by integrating solar photovoltaic modules, the device can directly convert the gathered light into electrical energy, providing clean energy for various electrical equipment, so that a single device can simultaneously meet the needs of lighting and energy supply, reducing the number of devices and the space occupied, and reducing the complexity and cost of the overall system.

[0032] (4) The device of this utility model adopts a closed light environment design. Through the cooperation of the side plate, diffuser, light guide cavity and slotted composite parabolic concentrator, a closed light transmission channel is formed. This design effectively prevents light leakage and scattering, and reduces light loss during transmission. This low light loss transmission method improves the lighting effect, extends the utilization time of light, and enables the device to maintain good lighting performance even in insufficient sunlight.

[0033] (5) In this utility model, the solar photovoltaic module with an angle (i.e., there is an angle between the two solar photovoltaic panels in the solar photovoltaic module) is provided, one of which covers the entire space on the side without light guiding, and the other solar photovoltaic panel can receive the light that is not irradiated on the reflective surface of the light guiding side, ensuring that all the light incident through the light inlet is received and converted.

[0034] (6) In this utility model, the support plate can provide reliable support for the solar photovoltaic module and the curved reflector, making its structure stable. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the slotted composite parabolic light guide and optoelectronic integrated lighting device of this utility model.

[0036] Figure 2 This is a schematic diagram of the trough-type composite parabolic concentrator structure in the lighting device of this utility model;

[0037] Figure 3 This is a schematic diagram of the photovoltaic module structure in the lighting device of this utility model;

[0038] Figure 4 This is a schematic diagram of the light-guiding cavity structure in the lighting device of this utility model;

[0039] Figure 5 This is a schematic diagram of the diffuser structure in the lighting device of this utility model;

[0040] Figure 6 This is a schematic diagram illustrating the use of the lighting device of this utility model in a greenhouse;

[0041] Wherein: 1-Light guiding side reflector; 2-Glass cover plate; 3-First solar photovoltaic panel; 4-Side plate; 5-Power generation side reflector; 6-Second solar photovoltaic panel; 7-Support plate; 8-Curved reflector; 9-First entrance mirror; 10-Second entrance mirror; 11-First transmission mirror; 12-First exit mirror; 13-Diffuser; 14-Second exit mirror; 15-Second transmission mirror; 16-Light guide port; 17-Greenhouse. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and examples.

[0043] In addressing key issues encountered in the development of facility agriculture, the optimization of its internal environment directly impacts crop growth quality and yield. Traditional greenhouses often rely on artificial lighting and external power supplies for supplemental lighting, which not only increases operating costs but can also lead to energy waste and environmental pollution. The trough-type composite parabolic light guide integrated photoelectric lighting device provided in this invention overcomes this bottleneck, demonstrating significant advantages in facility agriculture.

[0044] Example 1:

[0045] like Figure 1 As shown, the trough-type composite parabolic light guide and photoelectric integrated lighting device provided in this embodiment includes: a trough-type composite parabolic concentrator, a solar photovoltaic module, a light guide cavity, and a diffuser 13.

[0046] The parabolic trough concentrator is one of the core components of this device, used to achieve initial focusing and directional transmission of sunlight. The parabolic trough concentrator focuses and transmits a portion of the sunlight to the light-guiding cavity, while the remaining sunlight is focused onto the solar photovoltaic modules. The parabolic trough concentrator has a light-guiding side reflector 1 and a power-generating side reflector 5. After initial focusing on the light-guiding side reflector 1, the sunlight is transmitted to the light-guiding cavity, and then focused onto the solar photovoltaic modules by the power-generating side reflector 5.

[0047] The solar photovoltaic module is the key component in this device for achieving photoelectric conversion; the solar photovoltaic module is installed inside the parabolic trough concentrator to directly convert the concentrated light into electrical energy.

[0048] A light guide cavity is connected to the light guide port 16 of the slotted composite parabolic concentrator, thus forming a light transmission channel; a diffuser 13 is installed at the light outlet of the light guide cavity; the light guide cavity is used to focus and directionally transmit the light from the slotted composite parabolic concentrator to the diffuser 13, which then scatters the light into the environment to achieve the lighting function; such as Figure 6As shown, when the lighting device is used on greenhouse 17, diffuser 13 scatters light to each corner of greenhouse 17, realizing the lighting function inside greenhouse 17.

[0049] To create a closed light environment, the lateral sides of the slotted composite parabolic concentrator and the light guide cavity are sealed by side plates (not shown in the figure).

[0050] The following sections will provide a detailed introduction to the parabolic trough concentrator, solar photovoltaic modules, and light guide cavity.

[0051] like Figure 2 As shown, the trough-type composite parabolic concentrator includes: a light-guiding side reflector 1, a power-generating side reflector 5, an arc-shaped reflector 8, and a glass cover plate 2; the light-guiding side reflector 1 and the power-generating side reflector 5 are semi-parabolic surfaces arranged opposite each other with their openings facing upwards, forming a trough structure; a light guide port 16 is left at the lower end between the light-guiding side reflector 1 and the power-generating side reflector 5 (i.e., the two are not connected at the lower end).

[0052] As an example, an opening is formed by cutting off a portion of the lower end of the semi-parabolic surface of the power generation side reflector 5 as a light guide port 16; thus, the light guide side reflector 1 is a complete semi-parabolic surface, and the power generation side reflector 5 is a semi-parabolic surface with a notch.

[0053] As an example, the two-dimensional shapes of the semi-parabolic surface of the light-guiding side reflector 1 and the semi-parabolic surface of the power-generating side reflector 5 before truncation are located at the same vertex, i.e., as shown in the figure. Figure 2 As shown, the lower end of the power generation side reflector 5 is extended to form a complete semi-parabolic surface, which can be connected with the lower end of the light guide side reflector 1.

[0054] As an example, the reflective surface area of ​​the light-guiding side reflective surface 1 is larger than that of the power generation side reflective surface 5, so that the light-guiding side reflective surface 1 can reflect more light for illumination compared to the power generation side reflective surface 5 (the main function of this device is illumination, and power generation is an auxiliary function).

[0055] The curved reflector 8 is located inside the trough-type composite parabolic concentrator, at the position of the light guide port 16. The inner curved surface of the curved reflector 8 faces the light guide side reflector 1, and the lower end of the curved reflector 8 is connected and fixed to the lower end of the power generation side reflector 5. The curved reflector 8 is used to enable light to be focused and reflected along a predetermined path. Specifically, the curved reflector 8 is used to receive and reflect the light reflected by the light guide side reflector 1, and the curved reflector 8 further reflects the light emitted by the light guide side reflector 1 back to the light guide cavity.

[0056] As an example, such as Figure 2As shown, the center of the curved reflector 8 is located on the center line O, which is the center line of the parabolic two-dimensional shape of the light-guiding side reflector 1. By adjusting the position of the center of the curved reflector 8 on the center line and adjusting the curvature of the curved reflector 8, the efficiency of the curved reflector 8 in receiving and reflecting light can be adjusted.

[0057] The opening between the upper ends of the light-guiding side reflector 1 and the power-generating side reflector 5 is the light inlet of the device. The light inlet is sealed by the glass cover plate 2 to prevent dust and rainwater from entering the device and to keep the optical components clean and stable.

[0058] like Figure 6 As shown, when the lighting device is used in greenhouse 17, the trough-type composite parabolic concentrator is located outside greenhouse 17. By adjusting its installation position and angle, it can receive sunlight to the maximum extent. The trough-type parabolic design allows the light to gradually converge during the reflection process, improving the utilization efficiency and concentrating effect of the light.

[0059] like Figure 3 As shown, the solar photovoltaic module is installed inside a trough-type composite parabolic concentrator, including two solar photovoltaic panels placed at an angle (i.e., there is an angle between the two solar photovoltaic panels), namely the first solar photovoltaic panel 3 and the second solar photovoltaic panel 6. The lower end of the second solar photovoltaic panel 6 is connected and fixed to the lower end of the power generation side reflector 5 (i.e., the connection between the power generation side reflector 5 and the curved reflector 8); the lower end of the first solar photovoltaic panel 3 is connected and fixed to the upper end of the curved reflector 8 (the opposite side of the curved reflector 8 to the side connecting the power generation side reflector 5). This layout allows the solar photovoltaic panels to fully receive the light focused by the power generation side reflector 5, achieving efficient photoelectric conversion. Figure 2 and Figure 3 It can be seen that the angle formed by the first solar photovoltaic panel 3 and the second solar photovoltaic panel 6 is opposite to the back of the curved reflector 8.

[0060] As an example, the second solar photovoltaic panel 6 is set vertically, and the first solar photovoltaic panel 3 is tilted at a set angle relative to the second solar photovoltaic panel 6 toward the light-guiding side reflective surface 1.

[0061] As an example, the upper ends of the first solar photovoltaic panel 3 and the second solar photovoltaic panel 6 may or may not be in contact with the glass cover plate 2; no specific limitation is made here.

[0062] As an example, a support plate 7 is provided inside the space formed by the curved reflector 8 and the solar photovoltaic module. The upper end of the curved reflector 8 and the lower end of the first solar photovoltaic panel 3 are both supported on the support plate 7. Specifically, one end of the support plate 7 is connected and fixed to the lower end of the first solar photovoltaic panel 3, and the other end is connected and fixed to the second solar photovoltaic panel 6. The lower end of the curved reflector 8 is connected and fixed to the lower end of the power generation side reflector 5, and the upper end is connected to the support plate 7.

[0063] The solar photovoltaic modules are tightly packed inside the parabolic trough concentrator, forming a compact power generation unit. Two solar photovoltaic panels generate electricity by absorbing sunlight, which is then transmitted to the greenhouse's power storage and distribution system (meaning the solar photovoltaic modules are electrically connected to this system). This instantaneous photoelectric conversion reduces energy losses during transmission and improves the greenhouse's energy self-sufficiency.

[0064] like Figure 4 As shown, the light guide cavity is a light transmission channel composed of an entrance mirror group, a transmission mirror group, and an exit mirror group, each performing different functions. The entrance mirror group is responsible for introducing the light reflected by the curved reflector 8 into the light guide cavity, expanding the width of the light guide opening 16, and ensuring that all the light reflected by the curved reflector 8 can enter the light guide cavity. The transmission mirror group is responsible for directional transmission of light within the light guide cavity. The exit mirror group guides the light to the diffuser 13, thereby uniformly scattering the light to all corners of the greenhouse to achieve the lighting function.

[0065] As an example, the light-guiding cavity is a light transmission channel composed of six plane mirrors. The outer surfaces of the plane mirrors are all light-absorbing materials, and the inner surfaces are all highly reflective materials, further improving the light reflection efficiency and transmission distance. The six plane mirrors are divided into three groups: an entrance mirror group, a transmission mirror group, and an exit mirror group. The entrance mirror group includes a first entrance mirror 9 and a second entrance mirror 10; the transmission mirror group includes a first transmission mirror 11 and a second transmission mirror 15; and the exit mirror group includes a first exit mirror 12 and a second exit mirror 14.

[0066] The two mirrors of the incident light mirror assembly are connected at an angle and fixedly connected to the power generation side reflective surface 5. Specifically, the upper end of the first incident light mirror 9 is fixedly connected to the power generation side reflective surface 5, and the lower end is connected to the upper end of the second incident light mirror 10. There is a bending angle between the first incident light mirror 9 and the second incident light mirror 10. The transmission mirror assembly is placed opposite each other and is fixedly connected to the incident light mirror assembly and the light guide side reflective surface 1, respectively. Specifically, the upper end of the second transmission mirror 15 is fixedly connected to the light guide side reflective surface 1, the first transmission mirror 11 is parallel to the second transmission mirror 15, and the upper end of the first transmission mirror 11 is connected to the lower end of the second incident light mirror 10. The emitting light mirror assembly is placed opposite each other at a certain angle and is connected to the transmission mirror assembly. Specifically, the first emitting light mirror 12 and the second emitting light mirror 14 are arranged opposite each other. The upper end of the second emitting light mirror 14 is connected to the lower end of the second transmission mirror 15, and the upper end of the first emitting light mirror 12 is connected to the lower end of the first transmission mirror 11.

[0067] The opening between the lower ends of the first light-emitting mirror 12 and the second light-emitting mirror 14 is the light-emitting port. The diffuser 13 is disposed at the light-emitting port, and its two opposite ends are connected to the first light-emitting mirror 12 and the second light-emitting mirror 14, respectively. Figure 5 As shown.

[0068] As an example, such as Figure 5 As shown, the first light-emitting mirror 12 and the second light-emitting mirror 14 are symmetrically arranged with respect to the center line of the diffuser 13.

[0069] like Figure 6 As shown, when this lighting device is used in greenhouse 17, the combination of the light guiding cavity and the diffuser 13 allows the light to be fully utilized inside the greenhouse. After the light is transmitted through the light guiding cavity and scattered by the diffuser 13, a uniform and soft lighting environment is formed, providing good lighting conditions for the growth of crops.

[0070] In this lighting device, when sunlight shines on the trough-type composite parabolic concentrator, on the power generation side, the light is emitted by the power generation side reflector 5 and then shines on the second solar photovoltaic panel 6; on the light guiding side, some light directly shines on the first solar photovoltaic panel 3 through the glass cover plate 2, and the two solar photovoltaic panels convert light energy into electrical energy; at the same time, on the light guiding side, the light shining on the light guiding side reflector 1 is emitted by the light guiding side reflector 1 to the curved surface reflector 8, and then further emitted through the curved surface reflector 8 to the light guiding cavity for transmission and scattering, providing lighting for the interior of the greenhouse 17.

[0071] This combination of light guiding and photovoltaic technology not only improves the efficiency of light utilization but also achieves energy self-sufficiency. Under sunny weather conditions, the solar greenhouse can meet the power needs of its internal equipment by relying on the electricity generated by the solar photovoltaic modules, reducing its dependence on the external power grid.

[0072] like Figure 5As shown, the combined use of the light-guiding cavity and the diffuser 13 enables light to be evenly scattered and distributed inside the greenhouse. The diffuser 13 scatters light to every corner of the greenhouse, creating a uniform and soft lighting environment that provides the necessary lighting conditions for crop growth.

[0073] Example 2:

[0074] Based on the above embodiment 1, a specific connection method for the curved reflector 8 is given.

[0075] like Figure 2 and Figure 3 As shown, the lower end of the curved reflector 8 is installed on the lower end of the power generation side reflector 5, and the upper end is installed on the support plate 7. By adjusting the curvature of the curved reflector 8, it can complete the predetermined function. By optimizing the curvature and position of the curved reflector 8, it can be ensured that all the light incident on the curved reflector 8 after being reflected by the light guide side reflector 1 is received and no light is reflected back to the light guide side reflector 1.

[0076] When sunlight passes through the glass cover plate 2 and is incident on the light guide side reflector 1, the light is reflected for the first time and then incident on the curved reflector 8. In order to achieve efficient light transmission, by adjusting the curvature and position of the curved reflector 8, all the light reflected by the light guide side reflector 1 at any time can be reflected into the light guide cavity port 16 of the light guide cavity at any time within a certain angle range (i.e., within the set solar deflection angle).

[0077] Example 3:

[0078] Based on the above embodiments 1-2, a specific connection method for the incident lens group in the light guide cavity of the device is given.

[0079] The incident lens assembly consists of two mirrors: a first incident lens 1 and a second incident lens 10. One end of the first incident lens 9 is connected to the power generation side reflector 5 and forms a three-in-one structure with the curved reflector 8; the other end is connected to the second incident lens 10, which is connected to the first transmission mirror 11; and the first incident lens 1 and the second incident lens 10 have an outward deflection angle.

[0080] Compared to the curved reflector 8, the first reflector 9 is deflected outward. The main function of the deflection is to receive part of the light reflected by the curved reflector 8, to prevent the light from being reflected back into the light guide side reflector 1, and to provide a larger transmission angle for the initial transmission of light in the light guide cavity, so that the number of reflections of light in the light guide cavity is reduced.

[0081] Compared to the first reflector 9, the second reflector 10 is deflected outward. The main function of the deflection is to receive most of the light reflected from the curved reflector 8 and change the reflection angle of the light in the light guide cavity, so that most of the light reduces the number of reflections during transmission and achieves high-efficiency light transmission.

[0082] Example 4:

[0083] Based on the above embodiments 1-3, a preferred embodiment of the diffuser 13 is given.

[0084] The diffuser 13 primarily diffuses light softly and evenly onto the target area, reducing shadows and overexposure, and improving the lighting effect. The diffuser 13 is made of a translucent material, such as polymethyl methacrylate (PMMA) or polycarbonate (PC). The diffuser 13 is fixed between the first exit mirror 12 and the second exit mirror 14 to ensure its shape is stable and does not wobble.

[0085] The main function of diffuser 13 is to receive the light transmitted from the light guide cavity and diffuse the light evenly inside the space so that the light can be smoothly scattered to achieve the lighting effect.

[0086] The above description, in conjunction with specific embodiments, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this utility model, and all such modifications and substitutions should be considered within the protection scope of this utility model.

Claims

1. A slotted composite parabolic light guide integrated photoelectric lighting device, characterized in that: A trough-type composite parabolic concentrator is used to focus and transmit a portion of sunlight to a light-guiding cavity; the trough-type composite parabolic concentrator is also used to focus another portion of sunlight onto a solar photovoltaic module; A diffuser (13) is provided at the light outlet of the light guide cavity. The light guide cavity is used to transmit the light from the slotted composite parabolic concentrator to the diffuser (13). The diffuser (13) is used to scatter the light into the environment to achieve the lighting function. The solar photovoltaic module is used to directly convert concentrated light into electrical energy.

2. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 1, characterized in that: The grooved composite parabolic concentrator includes: a light-guiding side reflector (1), a power-generating side reflector (5), and an arc-shaped reflector (8). The light-guiding side reflective surface (1) and the power generation side reflective surface (5) are semi-parabolic surfaces arranged opposite each other with their openings facing upwards; a light guide opening (16) is left at the lower end between the light-guiding side reflective surface (1) and the power generation side reflective surface (5). The arc-shaped reflector (8) is located inside the trough-type composite parabolic concentrator at the position of the light guide port (16); the lower end of the arc-shaped reflector (8) is connected to the lower end of the power generation side reflector (5); the arc-shaped reflector (8) is used to receive the light reflected by the light guide side reflector (1) and further reflect the light to the light guide cavity.

3. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 2, characterized in that: The center of the arc-shaped reflector (8) is located on the center line O, which is the center line of the parabolic two-dimensional shape of the light-guiding side reflector (1).

4. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 2 or 3, characterized in that: The opening between the upper ends of the light-guiding side reflective surface (1) and the power generation side reflective surface (5) is the light inlet, and a glass cover plate (2) is provided at the light inlet.

5. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 2 or 3, characterized in that: The reflective surface area of ​​the light-guiding side reflective surface (1) is greater than the reflective surface area of ​​the power generation side reflective surface (5).

6. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 2 or 3, characterized in that: The light-guiding side reflective surface (1) is a complete semi-parabolic surface, and the power generation side reflective surface (5) is a semi-parabolic surface with a notch, the notch being a light guide port (16).

7. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 2 or 3, characterized in that: The solar photovoltaic module is installed inside the trough-type composite parabolic concentrator and includes two solar photovoltaic panels placed at an angle, namely the first solar photovoltaic panel (3) and the second solar photovoltaic panel (6). The lower end of the second solar photovoltaic panel (6) is connected to the lower end of the power generation side reflector (5); the lower end of the first solar photovoltaic panel (3) is connected to the upper end of the arc surface reflector (8).

8. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 7, characterized in that: A support plate (7) is provided inside the space formed by the curved reflector (8) and the solar photovoltaic module. One end of the support plate (7) is connected to the lower end of the first solar photovoltaic panel (3), and the other end is connected to the second solar photovoltaic panel (6); the upper end of the arc-shaped reflector (8) is connected to the support plate (7).

9. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 2 or 3, characterized in that: The light-guiding cavity is a light transmission channel composed of an entrance lens group, a transmission lens group, and an exit lens group; The incident lens group is used to introduce the light reflected by the curved mirror (8) into the light guide cavity; The transmission mirror assembly is used to directionally transmit light within the light guide cavity; The light-emitting mirror assembly is used to guide light to the diffuser (13).

10. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 9, characterized in that: The incident lens group includes a first incident lens (9) and a second incident lens (10); wherein the upper end of the first incident lens (9) is connected and fixed to the power generation side reflector (5), and the lower end is connected to the upper end of the second incident lens (10); the first incident lens (9) is deflected outward relative to the curved surface reflector (8), and the second incident lens (10) is deflected outward relative to the first incident lens (9); The transmission mirror group includes a first transmission mirror (11) and a second transmission mirror (15); wherein the upper end of the second transmission mirror (15) is connected and fixed to the light guide side reflective surface (1), the first transmission mirror (11) and the second transmission mirror (15) are parallel and opposite to each other, and the upper end of the first transmission mirror (11) is connected to the lower end of the second incident mirror (10). The light-emitting lens group includes a first light-emitting lens (12) and a second light-emitting lens (14), wherein the first light-emitting lens (12) and the second light-emitting lens (14) are arranged opposite to each other, the upper end of the second light-emitting lens (14) is connected to the lower end of the second transmission lens (15), and the upper end of the first light-emitting lens (12) is connected to the lower end of the first transmission lens (11). The opening between the lower ends of the first light-emitting mirror (12) and the second light-emitting mirror (14) is the light-emitting port. The diffuser (13) is set at the light-emitting port, and its two opposite ends are connected to the first light-emitting mirror (12) and the second light-emitting mirror (14) respectively.

11. The slotted composite parabolic light guide integrated photoelectric lighting device as described in claim 1, 2, or 3, characterized in that: The lighting device is enclosed by side panels on both sides, forming a sealed light environment.

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