A concentrating solar power generation device

Abstract

This utility model relates to the field of solar power generation technology and discloses a concentrating solar power generation device, including: a base, a tilt adjustment mechanism, a concentrating power generation mechanism, and a dust removal mechanism. The tilt adjustment mechanism is disposed on the base. The concentrating power generation mechanism includes: a photovoltaic power generation device and a concentrating device. The photovoltaic power generation device is connected to the tilt adjustment mechanism, and the concentrating device is connected to the photovoltaic power generation device, with the concentrating device located directly above the photovoltaic power generation device. The dust removal mechanism includes: an exhaust component and an exhaust component. The exhaust component is connected to the photovoltaic power generation device, and the exhaust component is disposed on the upper surface of the concentrating device. The exhaust component has multiple air outlets, and the exhaust component is connected to the exhaust component. The dust removal mechanism in this utility model can blow out gas to remove sand and dust from the surface of the concentrating device, thereby enhancing the concentrating accuracy of the concentrating device and improving the power generation efficiency of the photovoltaic power generation device.

Description

Technical Field

[0001] This utility model relates to the field of solar power generation technology, specifically to a concentrating solar power generation device. Background Technology

[0002] Solar energy, as a green, clean, and renewable energy source, is increasingly widely used in power generation systems. Especially in photovoltaic and solar thermal power generation technologies, solar energy utilization efficiency has become a key technical indicator. To improve the light energy conversion efficiency per unit area, concentrated solar power generation technology is gaining increasing attention. This technology uses optical devices to concentrate sunlight onto a specific area to enhance irradiance and increase power output.

[0003] A concentrating solar power generation device includes a base, a mounting frame, a concave mirror, and a photovoltaic panel. The mounting frame is rotatably mounted on the base, and a fixing device is installed on the top of the mounting frame. A horizontal rotating shaft is provided on the mounting frame, and the rotating shaft passes through the bottom of the fixing device and connects to it. The concave mirror and the photovoltaic panel are both mounted on the fixing device, with the concave mirror positioned above the photovoltaic panel. The mounting frame can rotate on the base, allowing for the rotation adjustment of the photovoltaic panel. The rotation of the rotating shaft drives the rotation of the fixing device, thus adjusting the rotation of the photovoltaic panel. By adjusting the position of the photovoltaic panel, a better photovoltaic power generation effect can be achieved. However, when this power generation device is installed in an environment with high wind and sand, the surface of the concave mirror will be blocked by sand and dust, reducing the focusing accuracy of the concave mirror and affecting the power generation efficiency of the photovoltaic panel. Utility Model Content

[0004] In view of this, the present invention provides a concentrating solar power generation device to solve the problem of reduced power generation efficiency of photovoltaic panels caused by the surface of concave mirrors being blocked by wind, sand and dust.

[0005] In a first aspect, this utility model provides a concentrating solar power generation device, comprising:

[0006] Base;

[0007] A tilt adjustment mechanism is disposed on the base;

[0008] A concentrating power generation mechanism, comprising: a photovoltaic power generation device and a concentrating device, wherein the photovoltaic power generation device is connected to the tilt adjustment mechanism, the concentrating device is connected to the photovoltaic power generation device, and the concentrating device is located directly above the photovoltaic power generation device;

[0009] The dust removal mechanism includes an air extraction component and an air outlet component. The air extraction component is connected to the photovoltaic power generation device, and the air outlet component is disposed on the upper surface of the concentrating device. The air outlet component has multiple air outlets, and the air extraction component is connected to the air outlet component.

[0010] Beneficial effects

[0011] The tilt adjustment mechanism, located on the base, allows the photovoltaic (PV) power generation device to adjust its angle around its center. By adjusting the tilt angle according to the sun's daily trajectory, the device is always facing the sun, maximizing the reception of direct sunlight, improving solar energy utilization, and significantly increasing power generation efficiency. The concentrator uses an optical focusing structure to concentrate sunlight over a large area onto the PV power generation device surface, greatly enhancing the incident light intensity per unit area and increasing the device's operating power.

[0012] The dust removal mechanism can effectively remove sand and dust from the surface of the concentrator. The air extraction component is connected to the photovoltaic power generation device and is used to extract air. The air outlet is set on the upper surface of the concentrator and is equipped with multiple air nozzles. During operation, the airflow can be evenly sprayed onto the surface of the concentrator mirror to prevent the power generation efficiency from decreasing due to dust accumulation on the surface of the photovoltaic power generation device and ensure the normal operation of the concentrator.

[0013] In one optional embodiment, the focusing device includes a focusing mirror and an annular frame. The bottom of the focusing mirror is provided with a plurality of heat-conducting rods spaced apart along its circumference, and the annular frame is provided with a plurality of air holes spaced apart along its circumference. The heat-conducting rods are inserted into the air holes accordingly.

[0014] Beneficial effects

[0015] The heat-conducting rod is inserted into the air hole of the annular frame, allowing external air to naturally enter the interior of the annular frame through the air hole, while simultaneously carrying away the heat on the heat-conducting rod, achieving effective passive heat dissipation, improving the heat dissipation efficiency of the condenser lens, and preventing heat accumulation from damaging the condenser lens.

[0016] In one optional embodiment, the air inlet of the extraction component is connected to the annular frame via an air pipe, and the air outlet is connected to the air outlet via an air pipe.

[0017] Beneficial effects

[0018] The gas is drawn into the air inlet at the input end of the air extraction component. The gas will form an airflow around the heat-conducting rod, which will carry away the heat on the heat-conducting rod and further improve the heat dissipation effect of the condenser lens.

[0019] In one alternative embodiment, the annular frame is connected to the photovoltaic power generation device via a bracket, and the air extraction component is disposed on the bracket.

[0020] In one optional embodiment, the air outlet is an arc-shaped box, which is disposed on the outer edge of the upper surface of the condenser lens, and the inner side of the arc-shaped box has a plurality of air outlets.

[0021] In one optional embodiment, a dustproof groove is provided on the inner side of the arc-shaped box, and the dustproof groove is located above the air outlet.

[0022] Beneficial effects

[0023] The dustproof channel sprays out protective gas, forming a protective air curtain above the condenser lens. This effectively blocks external wind, sand, and dust, reducing their accumulation on the condenser lens surface and improving the condenser lens's focusing accuracy.

[0024] In one optional embodiment, the tilt adjustment mechanism includes a support rod and a telescopic rod. The bottom end of the support rod is connected to the base, and the top end is hinged to the center position of the photovoltaic power generation device. The telescopic rod is disposed on the base, and the driving end is hinged to the edge position of the photovoltaic power generation device.

[0025] In one optional embodiment, the tilt adjustment mechanism further includes a rotating component, which includes a driving member, a gear, and a gear ring. The driving member is disposed on the base, the gear is connected to the driving end of the driving member, the gear ring meshes with the gear, and the mounting end of the telescopic rod is connected to the gear ring.

[0026] Beneficial effects

[0027] The tilt adjustment mechanism can adjust the tilt angle of the photovoltaic power generation device, ensuring that the device always receives sunlight at the optimal angle, thereby improving its power generation efficiency. The rotating component, in conjunction with the telescopic rod, allows for tilt adjustment of the photovoltaic power generation device in any direction, ensuring that the concentrator receives maximum illumination area at different times, further enhancing the device's power generation efficiency.

[0028] In one optional embodiment, the base has a mounting hole, the sidewall of the mounting hole has an annular groove, the driving member is disposed in the mounting hole, and the gear ring is rotatably disposed in the annular groove.

[0029] In one optional embodiment, ball bearings are provided at both ends of the telescopic rod, and the telescopic rod is hinged to the toothed ring and the photovoltaic power generation device through the ball bearings.

[0030] Beneficial effects

[0031] The two ends of the telescopic rod are connected by ball bearings. When the photovoltaic power generation device deviates at an angle, the telescopic rod can adaptively tilt slightly to ensure smooth adjustment of the tilt angle adjustment mechanism and reduce the occurrence of jamming. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a concentrating solar power generation device according to an embodiment of the present utility model;

[0034] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0035] Figure 3 This is an exploded view of the structure of a concentrating solar power generation device according to an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the base and rotating component structure according to an embodiment of the present utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Base; 11. Mounting holes;

[0039] 21. Support rod; 22. Telescopic rod; 23. Rotating component; 231. Driving component; 232. Gear; 233. Gear ring.

[0040] 31. Photovoltaic power generation device; 32. Concentrating device; 321. Concentrating mirror; 322. Ring frame; 323. Heat-conducting rod; 324. Vent; 33. Support.

[0041] 4. Dust removal mechanism; 41. Air extraction component; 42. Air outlet component; 43. Air outlet; 44. Air pipe; 45. Dustproof groove. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] The following is combined with Figures 1 to 4 The following describes embodiments of the present invention.

[0044] According to an embodiment of the present invention, a concentrating solar power generation device is provided, comprising: a base 1, a tilt adjustment mechanism, a concentrating power generation mechanism, and a dust removal mechanism 4. The tilt adjustment mechanism is disposed on the base 1. The concentrating power generation mechanism comprises: a photovoltaic power generation device 31 and a concentrating device 32. The photovoltaic power generation device 31 is connected to the tilt adjustment mechanism, and the concentrating device 32 is connected to the photovoltaic power generation device 31, with the concentrating device 32 located directly above the photovoltaic power generation device 31. The dust removal mechanism 4 comprises: an exhaust component 41 and an exhaust component 42. The exhaust component 41 is connected to the photovoltaic power generation device 31, and the exhaust component 42 is disposed on the upper surface of the concentrating device 32. The exhaust component 42 has multiple air outlets 43, and the exhaust component 41 is connected to the exhaust component 42.

[0045] The base 1 supports the entire solar power generation device. A circular base 1 is chosen for its strong stability. The bottom surface of the base 1 is fixedly connected to the ground, ensuring the stability and safety of the photovoltaic power generation device 31 during operation. A tilt adjustment mechanism is located on the base 1, which can adjust the tilt angle of the photovoltaic power generation device 31, ensuring that the device always faces the sun and receives the maximum amount of sunlight.

[0046] The photovoltaic power generation device 31 converts solar energy into electrical energy. The concentrator 32, located above the photovoltaic power generation device 31, concentrates sunlight onto the photovoltaic power generation device 31, thereby improving the efficiency of the photovoltaic power generation device 31. The exhaust component 41 draws outside air to the exhaust component 42, and multiple air outlets 43 on the exhaust component 42 blow the drawn air toward the surface of the concentrator 32, removing sand and dust from the surface of the concentrator 32 and improving the concentrating accuracy of the concentrator 32.

[0047] In one embodiment, the focusing device 32 includes a focusing mirror 321 and an annular frame 322. The bottom of the focusing mirror 321 is provided with a plurality of heat-conducting rods 323 spaced apart along its circumference, and the annular frame 322 is provided with a plurality of air holes 324 spaced apart along its circumference. The heat-conducting rods 323 are inserted into the air holes 324 respectively.

[0048] Specifically, the concentrator 321 is a convex lens that focuses sunlight onto the surface of the photovoltaic power generation device 31. Multiple cylindrical heat-conducting rods 323 are installed at the bottom of the concentrator 32, and these rods 323 are evenly distributed circumferentially along the edge of the concentrator 321. Multiple circular air holes 324 are formed along the edge of the annular frame 322, into which the heat-conducting rods 323 can be inserted. The heat-conducting rods 323 improve the heat conduction effect of the concentrator 32, and the air holes 324 of the annular frame 322 allow outside air to be introduced to dissipate heat from the heat-conducting rods 323, enabling the concentrator 321 to effectively dissipate heat during prolonged light concentration.

[0049] In one embodiment, the annular frame 322 is connected to the photovoltaic power generation device 31 via a bracket 33, and the air extraction component 41 is disposed on the bracket 33.

[0050] The annular frame 322 is fixedly connected to the photovoltaic power generation device 31 via brackets 33. This ensures that the concentrator 321 is always directly above the photovoltaic power generation device 31, maximizing the concentration of sunlight onto the device. It also ensures that the concentrator 322 and the photovoltaic power generation device 31 can rotate synchronously when the tilt angle is adjusted. Specifically, in this embodiment, the annular frame 322 is fixedly connected to the photovoltaic power generation device 31 via two opposing brackets 33. The brackets 33 are L-shaped, with their ends connected to the bottom of the annular frame 322 and the side wall of the photovoltaic power generation device 31, respectively. Simultaneously, the brackets 33 can also serve as mounting components for the suction device 41, meaning the suction device 41 can be fixedly mounted on one of the brackets 33.

[0051] In one embodiment, the air inlet of the air extraction component 41 is connected to the annular frame 322 via an air pipe 44, and the air outlet is connected to the air outlet component 42 via an air pipe 44.

[0052] Specifically, the air extraction component 41 uses a miniature air pump to draw air from the air holes 324 of the annular frame 322. The air extraction component 41 guides the extracted air through the air pipe 44 into the air outlet component 42, which is located on the upper surface of the concentrator 32. The air outlet component 42 evenly blows the extracted air onto the surface of the concentrator lens 321, removing accumulated dust and sand, thus preventing dust buildup on the surface of the concentrator lens 321 from affecting the light reception of the photovoltaic power generation device 31. Simultaneously, the air extraction process also further removes heat from the heat-conducting rod 323, accelerating the heat dissipation of the concentrator 32.

[0053] In one embodiment, the air outlet 42 is an arc-shaped box, which is disposed on the outer edge of the upper surface of the condenser lens 321, and a plurality of air outlets 43 are opened on the inner side of the arc-shaped box.

[0054] Specifically, the air outlet 42 is an arc-shaped box that is installed on the outer edge of the upper surface of the condenser lens 321. Multiple air outlets 43 are opened on the side of the arc-shaped box near the condenser lens 321. The air drawn by the air extraction component 41 can be blown evenly onto the surface of the condenser lens 321 through these air outlets 43. The airflow is evenly distributed and can effectively remove dust and sand from the surface of the condenser lens 321.

[0055] In one embodiment, a dustproof groove 45 is provided on the inner side of the arc-shaped box, and the dustproof groove 45 is located above the air outlet 43.

[0056] Specifically, a dustproof groove 45 is provided above the air outlet 43. The air drawn by the air extraction component 41 is blown out through the dustproof groove 45, which can form a planar air curtain above the air outlet 43, thereby forming an air curtain barrier on the surface of the condenser lens 321, which can block external wind sand and dust and prevent them from being deposited on the surface of the condenser lens 321 again.

[0057] In one embodiment, the tilt adjustment mechanism includes a support rod 21 and a telescopic rod 22. The bottom end of the support rod 21 is connected to the base 1, and the top end is hinged to the center of the photovoltaic power generation device 31. The telescopic rod 22 is disposed on the base 1, and the driving end is hinged to the edge of the photovoltaic power generation device 31.

[0058] Specifically, the bottom end of the support rod 21 is fixed to the base 1, and the top end is pivotally hinged to the center of the photovoltaic power generation device 31. The support rod 21 provides adjustment stability for the photovoltaic power generation device 31, preventing violent swaying or tilting when the photovoltaic power generation device 31 is tilted. The telescopic rod 22 is an electric push rod, capable of adjusting the tilt angle of the photovoltaic power generation device 31 and flexibly adjusting the angle of the photovoltaic panel according to the sun's trajectory. The telescopic rod 22 has an adjustable extension length; when the drive end extends, the tilt angle of the photovoltaic power generation device 31 increases, allowing for tilt angle adjustment of the photovoltaic power generation device 31 according to the sun's illumination angle at different times, ensuring that the photovoltaic power generation device 31 always receives sunlight at the optimal angle.

[0059] In one embodiment, the tilt adjustment mechanism further includes a rotating component 23, which includes a driving member 231, a gear 232, and a gear ring 233. The driving member 231 is disposed on the base 1, the gear 232 is connected to the driving end of the driving member 231, the gear ring 233 meshes with the gear 232, and the mounting end of the telescopic rod 22 is connected to the gear ring 233.

[0060] Specifically, the fixed end of the drive component 231 is fixed to the base 1, and a servo motor is selected. Its output end is connected to the gear 232, and the gear 232 meshes with the internal teeth of the gear ring 233. The drive component 231 drives the gear 232 to rotate, which in turn drives the gear ring 233 to rotate, thereby changing the position of the telescopic rod 22 at the bottom of the photovoltaic power generation device 31. The telescopic rod 22 can adjust the tilt angle of the photovoltaic power generation device 31 from different directions, thereby improving the power generation efficiency of the photovoltaic power generation device 31.

[0061] In one embodiment, the base 1 has a mounting hole 11, the side wall of the mounting hole 11 has an annular groove, the drive member 231 is disposed in the mounting hole 11, and the toothed ring 233 is rotatably disposed in the annular groove.

[0062] Specifically, a circular mounting hole 11 is formed in the center of the base 1, and the fixed end of the drive component 231 is fixed to the mounting hole 11. An annular groove is formed on the side wall of the mounting hole 11 and is located above the drive component 231. The outer periphery of the toothed ring 233 is engaged in the annular groove and can rotate freely in the annular groove.

[0063] In one embodiment, ball bearings are provided at both ends of the telescopic rod 22, and the telescopic rod 22 is hinged to the toothed ring 233 and the photovoltaic power generation device 31 through the ball bearings.

[0064] Specifically, the ball bearings reduce friction between the telescopic rod 22, the toothed ring 233, and the photovoltaic power generation device 31. At the connection between the telescopic rod 22 and the toothed ring 233, the ball bearings, through their rolling characteristics, allow the telescopic rod 22 to move smoothly, enabling precise adjustment of the tilt angle of the photovoltaic power generation device 31. Furthermore, through the rolling hinge between the telescopic rod 22, the photovoltaic power generation device 31, and the toothed ring 233, the photovoltaic power generation device 31 can adapt to slight tilts during tilt angle adjustment, resulting in smoother angle adjustments and reducing the occurrence of jamming.

[0065] Working principle: The concentrator 321 focuses sunlight onto the surface of the photovoltaic power generation device 31, which then converts solar energy into electrical energy. The extension rod 22 can adjust the tilt angle of the photovoltaic power generation device 31. Together with the drive component 231, it drives the gear ring 233 to rotate, which can adapt to the sun's trajectory to adjust the tilt angle of the photovoltaic power generation device 31, ensuring that the photovoltaic power generation device 31 always faces the sun and guarantees continuous and efficient power generation.

[0066] The air extraction component 41 draws in outside air from the air vent 324 and introduces it into the arc-shaped box. While dissipating heat from the heat-conducting rod 323 of the condenser lens 321, it also introduces air into the arc-shaped box. The air is blown onto the surface of the condenser lens 321 through the air outlet 43, removing dust. At the same time, the dustproof groove 45 on the arc-shaped box sprays airflow to form an air curtain, effectively blocking external wind and sand and reducing dust accumulation on the surface of the condenser lens 321.

[0067] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A concentrated solar power device, characterized by, include: Base (1); An angle adjustment mechanism is provided on the base (1); A concentrating power generation mechanism, comprising: a photovoltaic power generation device (31) and a concentrating device (32), wherein the photovoltaic power generation device (31) is connected to the tilt adjustment mechanism, the concentrating device (32) is connected to the photovoltaic power generation device (31), and the concentrating device (32) is located directly above the photovoltaic power generation device (31); The dust removal mechanism (4) includes an air extraction component (41) and an air outlet component (42). The air extraction component (41) is connected to the photovoltaic power generation device (31). The air outlet component (42) is disposed on the upper surface of the concentrating device (32). The air outlet component (42) has multiple air outlets (43). The air extraction component (41) is connected to the air outlet component (42).

2. The concentrated solar power device of claim 1, wherein, The focusing device (32) includes a focusing mirror (321) and an annular frame (322). The bottom of the focusing mirror (321) is provided with a plurality of heat-conducting rods (323) spaced apart along its circumference. The annular frame (322) is provided with a plurality of air holes (324) spaced apart along its circumference. The heat-conducting rods (323) are inserted into the air holes (324) respectively.

3. The concentrated solar power device of claim 2, wherein, The air intake end of the air extraction component (41) is connected to the annular frame (322) through an air pipe (44), and the air outlet end is connected to the air outlet component (42) through an air pipe (44).

4. The concentrating solar power generation device according to claim 2, characterized in that, The annular frame (322) is connected to the photovoltaic power generation device (31) via a bracket (33), and the air extraction component (41) is mounted on the bracket (33).

5. The concentrating solar power generation device according to claim 2, characterized in that, The air outlet (42) is an arc-shaped box, which is located on the outer edge of the upper surface of the condenser lens (321), and a plurality of air outlets (43) are opened on the inner side of the arc-shaped box.

6. The concentrating solar power generation device according to claim 5, characterized in that, The arc-shaped box has a dustproof groove (45) on its inner side, and the dustproof groove (45) is located above the air outlet (43).

7. The concentrating solar power generation device according to any one of claims 1-6, characterized in that, The tilt adjustment mechanism includes a support rod (21) and a telescopic rod (22). The bottom end of the support rod (21) is connected to the base (1), and the top end is hinged to the center of the photovoltaic power generation device (31). The telescopic rod (22) is located on the base (1), and the driving end is hinged to the edge of the photovoltaic power generation device (31).

8. The concentrating solar power generation device according to claim 7, characterized in that, The tilt adjustment mechanism further includes a rotating component (23), which includes a driving component (231), a gear (232), and a gear ring (233). The driving component (231) is disposed on the base (1), the gear (232) is connected to the driving end of the driving component (231), the gear ring (233) meshes with the gear (232), and the mounting end of the telescopic rod (22) is connected to the gear ring (233).

9. The concentrating solar power generation device according to claim 8, characterized in that, The base (1) has an installation hole (11), and the side wall of the installation hole (11) has an annular groove. The driving member (231) is disposed in the installation hole (11), and the toothed ring (233) is rotatably disposed in the annular groove.

10. The concentrating solar power generation device according to claim 9, characterized in that, The telescopic rod (22) is provided with ball bearings at both ends, and the telescopic rod (22) is hinged to the toothed ring (233) and the photovoltaic power generation device (31) through the ball bearings.

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