Anti-frosting deicing device for photovoltaic solar cell panel

Abstract

The invention relates to an anti-frosting deicing device for a photovoltaic solar cell panel, and relates to the technical field of solar panel deicing, the anti-frosting deicing device comprises a solar panel, the periphery of the solar panel is provided with a heating mechanism for rapidly deicing the solar panel, and the lower side of the solar panel is provided with an auxiliary mechanism for assisting in deicing. According to the anti-frosting and deicing device for the photovoltaic solar cell panel, through cooperative work of the heating mechanism and the auxiliary mechanism, the efficient and energy-saving defrosting and deicing effects are achieved, the heating mechanism generates hot air and hot water through an electric heating wire and a hot water pipe, and the hot air and the hot water are heated through the auxiliary mechanism; the heat extraction assembly is uniformly sprayed to the surface of the cell panel, frost and an ice layer are quickly melted, the deicing efficiency is remarkably improved, the power generation efficiency of the cell panel in a low-temperature environment is ensured, the auxiliary mechanism drives the poke rod to vibrate the cell panel through the motor, defrosting and deicing are further assisted, the adhesive force of the ice layer to the cell panel is reduced, and the deicing thoroughness is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar panel deicing, in particular to a frost prevention and deicing device for photovoltaic solar cell panel. BACKGROUND

[0002] Frost and ice layer can block sunlight and reduce the photoelectric conversion efficiency of the panel. Even a very thin layer of frost or ice can significantly reduce the amount of sunlight reaching the panel surface, thereby reducing power generation efficiency. According to research, frost and ice layer can cause power generation efficiency to decrease by 30%-50% or even more. Therefore, photovoltaic solar cell panels need to be deiced to prevent frost, and the surface of the photovoltaic cell panel needs to maintain good light transmittance in order to maximize the absorption of sunlight. Frost and ice layer can change the optical properties of the panel surface, increase light reflection and scattering, and reduce light transmission, thereby reducing power generation efficiency.

[0003] To address the above problems, some existing technologies use embedded heating wires or electric heating films inside or on the front of the panel for active deicing. However, such embedded heating solutions have many significant defects and cannot meet the requirements of high efficiency, safety, and long service life. The specific shortcomings are as follows: The distribution of embedded heating elements (especially linear heating wires) cannot be absolutely uniform, and there are often "hot spot" areas with excessively high temperatures, while other areas remain at low temperatures. This uneven heating can cause significant thermal stress in the glass substrate, which can easily lead to glass cracking or aging and delamination of the encapsulating material (such as EVA film), seriously threatening the sealing and service life of the module. In addition, "embedded" means that the heating elements need to be integrated into the laminated structure during the manufacturing process or during the later modification. This process involves re-laminating or punching and wiring, which can easily damage the original sealing structure (such as the backsheet and edge sealant), allowing water vapor to enter and causing corrosion of the cells, PID effect (potential induced degradation), or internal short circuit, greatly reducing the reliability and durability of the module. SUMMARY

[0004] To overcome the shortcomings of the prior art, the present application provides a frost prevention and deicing device for photovoltaic solar cell panel, which has the advantages of good deicing effect, and solves the problem that embedded heating solutions have many significant defects and cannot meet the requirements of high efficiency, safety, and long service life.

[0005] To achieve the above purpose, the present application provides the following technical solution: a frost prevention and deicing device for photovoltaic solar cell panel, comprising a solar panel, a heating mechanism for quickly deicing the solar panel is arranged around the solar panel, and an auxiliary mechanism for assisting deicing is arranged on the lower side of the solar panel. The heating mechanism comprises a heat supply component and a heat dissipation component, wherein the heat supply component specifically comprises the following: Heating box: It is placed on the ground and located below the solar panels; Partitions: These are fixed between the four inner walls of the heating chamber; Two fans: These are fixed to the left and right sides of the heating chamber; Deflector plates: Several of them are fixed to the inner walls of the upper and lower sides of the heating box; Heating wire A; its number is equal to the number of guide plates, and it is fixed to one side of the guide plates; Heating wire B: Several of them are located on the front side of the partition and fixed to the inner wall of the heating box; Water pump: It is fixed to the front of the heating box and the liquid inlet is connected to the front of the heating box through a pipe; Hot water pipe: It is connected and fixed to the outlet end of the water pump, and the other end is connected to the heat dissipation component; Hot air pipe: It is connected and fixed at the center of the back of the heating box.

[0006] Furthermore, the heat dissipation assembly includes protective frames located on the front and rear sides of the solar panel and supported by brackets. A positioning rod is fixed inside the front protective frame, and two linear modules are fixed inside the rear protective frame. Two sliding blocks are slidably connected to the outer side of the positioning rod. Two outer tubes are fixed between the two sliding blocks and the two linear modules, respectively. An inner tube is fixed inside the outer tube. Multiple liquid outlets are fixedly connected to the lower surface of the inner tube, and one end of the liquid outlet extends through and to the outer side of the outer tube and faces the direction of the solar panel. Multiple air outlets are fixedly connected to both the left and right sides of the outer tube.

[0007] Furthermore, the front ends of both inner tubes penetrate and extend to the front side of the outer tube, and are connected and fixed to the hot water pipe via a T-connector. The hot air pipe is also connected and fixed to the rear ends of the two outer tubes via a T-connector.

[0008] Furthermore, the heating box is shaped like a hollow cuboid, with a partition located at the center of the heating box, and the front side of the partition, located inside the heating box, is filled with clean water.

[0009] Furthermore, the heating box has partial gaps on both the left and right sides to form an opening, and dustproof nets are fixed between the four inner walls of the openings, with the dustproof nets facing the direction of the fan.

[0010] Furthermore, the protective frame is a cuboid with a hollow interior and a missing lower surface. The inner diameter of the slide is adapted to the outer diameter of the positioning rod, and the slide moves linearly left and right on the outside of the positioning rod.

[0011] Furthermore, the auxiliary mechanism includes multiple support rods fixed to the ground, with a drag rod slidably connected inside each support rod, and the other end of the drag rod is fixed perpendicularly to the lower surface of the solar panel. A spring located on the outside of the drag rod is fixed between the support rod and the side opposite to the solar panel.

[0012] Furthermore, the auxiliary mechanism also includes a motor fixed to the upper surface of the heating box, and two levers are fixed to the outside of the motor.

[0013] Furthermore, both of the aforementioned levers are driven by the motor output shaft to indirectly contact the lower surface of the solar panel, and push the solar panel to vibrate up and down.

[0014] Furthermore, the length of the protective frame is greater than the length of the solar panel, and the two protective frames are symmetrically distributed on the front and back sides of the solar panel.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects: This anti-frost and de-icing device for photovoltaic solar panels achieves efficient and energy-saving defrosting and de-icing through the coordinated operation of a heating mechanism and an auxiliary mechanism. The heating mechanism uses heating wires and hot water pipes to generate hot air and hot water, which are then evenly sprayed onto the surface of the solar panels through heat dissipation components, quickly melting frost and ice layers and significantly improving de-icing efficiency. This ensures the power generation efficiency of the solar panels in low-temperature environments. The auxiliary mechanism uses a motor-driven lever to vibrate the solar panels, further assisting in defrosting and de-icing, reducing the adhesion of ice layers to the solar panels, and improving the thoroughness of de-icing. In addition, the device has a reasonable structural design, is easy to operate, and has a high degree of automation, reducing manual maintenance costs and improving the stability and reliability of the photovoltaic system, resulting in significant economic and environmental benefits.

[0016] Compared with existing technologies, the anti-frost and de-icing device for photovoltaic solar panels not only improves the efficiency and effect of defrosting and de-icing, but also achieves energy-saving operation through intelligent control, reducing energy waste. At the same time, the structural design of the device takes into account the protection of the solar panels, avoiding potential damage to the surface of the solar panels, extending the service life of the solar panels, and enhancing the overall performance and adaptability of the photovoltaic system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the heating component structure of the present invention; Figure 3 This is a partial structural diagram of the heating component of the present invention; Figure 4 This is a schematic diagram of the heat dissipation component structure of the present invention; Figure 5This is a top view of the heat dissipation component structure of the present invention; Figure 6 This is a schematic diagram of the auxiliary mechanism of the present invention.

[0018] In the diagram: 1 Solar panel, 2 Heating mechanism, 21 Heating component, 211 Heating box, 212 Partition, 213 Fan, 214 Guide plate, 215 Heating wire A, 216 Heating wire B, 217 Water pump, 218 Hot water pipe, 219 Hot air pipe, 22 Heat exhaust component, 221 Protective frame, 222 Positioning rod, 223 Linear module, 224 Slide, 225 Outer pipe, 226 Inner pipe, 227 Liquid outlet, 228 Gas outlet, 3 Auxiliary mechanism, 301 Support rod, 302 Trailing rod, 303 Spring, 304 Motor, 305 Actuating rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-6 This embodiment provides an anti-frost and de-icing device for photovoltaic solar panels, including a solar panel 1, a heating mechanism 2 for rapid de-icing of the solar panel 1 around its perimeter, and an auxiliary mechanism 3 for assisting de-icing on the underside of the solar panel 1.

[0021] The device adopts a dual-system collaborative design of "heating mechanism 2 + auxiliary mechanism 3", with a reasonable layout and clear functions. Heating mechanism 2 provides heat from the outside in a non-contact manner to avoid damage to the solar panel, while auxiliary mechanism 3 provides mechanical vibration. The two work together to achieve a highly efficient and energy-saving de-icing effect, significantly improving the overall performance of the system.

[0022] The heating mechanism 2 includes a heating component 21 and a heat dissipation component 22, wherein the heating component 21 specifically includes the following: Heating box 211: It is placed on the ground and located below the solar panel 1; Partition 212: It is fixed between the four inner walls of the heating box 211; Two fans 213: They are fixed on the left and right sides of the heating box 211; Guide plates 214: Several of them are fixed to the inner walls of the upper and lower sides of the heating box 211; Heating wire A215; its number is equal to that of the guide plate 214, and it is fixed to one side of the guide plate 214; Heating wire B216: Several of them are located on the front side of the partition 212 and fixed to the inner wall of the heating box 211; Water pump 217: It is fixed to the front of the heating box 211 and its inlet end is connected to the front of the heating box 211 via a pipe; Hot water pipe 218: It is connected and fixed to the liquid outlet end of water pump 217, and the other end is connected to heat dissipation component 22; Hot air pipe 219: It is connected and fixed at the center of the back of the heating box 211.

[0023] It should be noted that the heating component 21 places the heating box 211 on the ground and uses dual heating with heating wires A215 and B216. With the guide plate 214 optimizing the heat flow path and the fan 213 forcing convection, it can quickly and evenly heat the clean water and air in the box, with high thermal efficiency, and provide a stable heat source for subsequent hot air and hot water supply.

[0024] The heat dissipation component 22 includes protective frames 221 located on the front and rear sides of the solar panel 1 and supported by brackets. A positioning rod 222 is fixed inside the front protective frame 221, and two linear modules 223 are fixed inside the rear protective frame 221. Two slide blocks 224 are slidably connected to the outside of the positioning rod 222. Two outer tubes 225 are fixed between the two slide blocks 224 and the two linear modules 223 respectively. An inner tube 226 is fixed inside the outer tube 225. Multiple liquid outlets 227 are fixedly connected to the lower surface of the inner tube 226. One end of the liquid outlet 227 passes through and extends to the outside of the outer tube 225 and faces the direction of the solar panel 1. Multiple air outlets 228 are fixedly connected to both the left and right sides of the outer tube 225.

[0025] It should be noted that the heat dissipation component 22 is supported by the protective frame 221. The linear module 223 drives the slide block 224 to move the outer tube 225 and the inner tube 226 along the positioning rod 222, so that the air outlet head 228 and the liquid outlet head 227 can move laterally, realizing a comprehensive and dynamic scanning spray on the surface of the solar panel 1, avoiding dead corners of static spraying, and ensuring uniform and thorough de-icing.

[0026] The front ends of the two inner pipes 226 extend through and to the front side of the outer pipe 225, and are connected and fixed to the hot water pipe 218 via a T-connector. The hot air pipe 219 is connected and fixed to the rear ends of the two outer pipes 225 via a T-connector.

[0027] It should be noted that by connecting the hot water pipe 218 to the front end of the inner pipe 226 and the hot air pipe 219 to the rear end of the outer pipe 225 through the T-connector, an independent water and gas transmission system is formed to ensure that hot water and hot air can be stably and synchronously delivered to the heat exhaust component 22 without interference, thus ensuring the stable operation of hot air and hot water de-icing.

[0028] The heating box 211 is a hollow cuboid, and the partition 212 is located at the center of the heating box 211. The front side of the partition 212 and the heating box 211 are filled with clean water. The left and right sides of the heating box 211 are partially missing to form an opening. Dustproof nets are fixed between the four inner walls of the openings, and the dustproof nets face the direction of the fan 213.

[0029] It should be noted that the rectangular heating box 211 has a stable structure, and the central partition 212 effectively divides the space and optimizes thermal energy management. The side wall openings, combined with dustproof nets, ensure smooth air intake of the fan 213 while effectively preventing external dust from entering the heating box 211, protecting the heating wire A215, heating wire B216 and water pump 217, and extending the service life of the equipment.

[0030] The protective frame 221 is a cuboid with a hollow interior and a missing lower surface. The inner diameter of the slide 224 is matched with the outer diameter of the positioning rod 222, and the slide 224 moves linearly left and right on the outside of the positioning rod 222.

[0031] It should be noted that the design of the missing lower surface of the protective frame 221 facilitates the downward spraying of the air outlet 228 and the liquid outlet 227; the sliding cooperation between the slide block 224 and the positioning rod 222 ensures that the outer tube 225 moves smoothly and accurately under the drive of the linear module 223, reduces vibration, and improves the reliability and lifespan of the heat dissipation component 22.

[0032] The auxiliary mechanism 3 includes multiple support rods 301 fixed on the ground. A drag rod 302 is slidably connected inside the support rod 301, and the other end of the drag rod 302 is fixed perpendicularly to the lower surface of the solar panel 1. A spring 303 located outside the drag rod 302 is fixed between the support rod 301 and the side opposite to the solar panel 1.

[0033] It should be noted that the support rod 301, the drag rod 302 and the spring 303 constitute an elastic support system, which provides stable support for the solar panel 1 while allowing it to move in the vertical direction, providing a basis for subsequent vibration de-icing. The structure is simple, has a good buffering effect, and protects the solar panel.

[0034] The auxiliary mechanism 3 also includes a motor 304 fixed to the upper surface of the heating box 211. Two levers 305 are fixed to the outside of the motor 304. Both levers 305 are driven by the output shaft of the motor 304 and indirectly contact the lower surface of the solar panel 1, pushing the solar panel 1 to shake up and down. The length of the protective frame 221 is greater than the length of the solar panel 1, and the two protective frames 221 are symmetrically distributed on the front and rear sides of the solar panel 1.

[0035] It should be noted that the motor 304 and the lever 305 convert the rotational motion into the up-and-down shaking of the solar panel 1, which effectively peels off the loose ice layer through mechanical vibration and prevents the meltwater from freezing again; the motor 304 is installed on the heating box 211, which saves space and facilitates wiring; the symmetrical long dimension design of the protective frame 221 ensures that the heat dissipation component 22 can completely cover the solar panel 1, achieving comprehensive de-icing.

[0036] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this invention is controlled by the controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The provision of power (provided by the battery) is also common knowledge in the art. Furthermore, this invention is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0037] In this application, the solar panel 1 is assumed to be a horizontally placed solar panel 1 available on the market. For inclined panels, the installation angle can be simply adjusted according to the structure of this application.

[0038] The working principle of the above embodiments is as follows: (1) Heating wires A215 and B216 are energized and heated to heat the water and gas in front of and behind the partition 212 respectively. The fan 213 is started to promote the air flow in the heating box 211 and accelerate the heat transfer, so that the air in the heating box 211 is heated evenly. At the same time, the water pump 217 is started to transport the hot water in the heating box 211 to the heat dissipation component 22 through the hot water pipe 218. The hot water is sprayed onto the surface of the solar panel 1 through the inner pipe 226 and the liquid outlet 227, and the heat of the hot water is used to melt the frost and ice layer. The hot air is sprayed onto the surface of the solar panel 1 through the outer pipe 225 and the air outlet 228, further accelerating the melting of the frost and ice layer. The design of the guide plate 214 ensures that the hot water and hot air are evenly distributed in the heating box 211, improving the heating efficiency. The partition 212 divides the space in the heating box 211, making the generation and transportation of hot water and hot air more orderly.

[0039] (2) The support rod 301 is fixed on the ground, and the drag rod 302 slides inside the support rod 301. The other end of the drag rod 302 is fixed vertically to the lower surface of the solar panel 1 to provide support for the solar panel. The spring 303 is installed between the support rod 301 and the solar panel 1 to provide elastic buffer and reduce the impact of vibration on the solar panel. The motor 304 starts and drives the toggle rod 305 to rotate through the output shaft. The toggle rod 305 indirectly contacts the lower surface of the solar panel 1. The rotation generates vibration, which pushes the solar panel 1 to shake up and down. The vibration loosens the frost and ice layer on the surface of the solar panel 1, assists the de-icing effect of hot water and hot air, and further improves the de-icing efficiency.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. An anti-icing and de-icing device for photovoltaic solar panels, comprising a solar panel (1), characterized in that: The solar panel (1) is provided with a heating mechanism (2) for quickly removing ice therefrom, and an auxiliary mechanism (3) is arranged on the lower side of the solar panel (1) for assisting in ice removal. The heating mechanism (2) comprises a heat supply assembly (21) and a heat exhaust assembly (22), wherein the heat supply assembly (21) specifically comprises the following: A heating box (211) is placed above the ground and located on the lower side of the solar panel (1); A partition plate (212) is fixed between the inner walls of the four sides of the heating box (211); Two fans (213) are fixed to the left and right sides of the heating box (211); A plurality of guide plates (214) are fixed to the inner walls of the upper and lower sides of the heating box (211); An electric heating wire A (215) is equal in number to the guide plates (214) and is fixed to one side of the guide plates (214); An electric heating wire B (216) is fixed to the front side of the partition plate (212) and to the inner wall of the heating box (211); A water pump (217) is fixed to the front of the heating box (211) and has a liquid inlet end connected to the front of the heating box (211) through a pipeline; A hot water pipe (218) is connected to the liquid outlet end of the water pump (217) and is connected to the heat exhaust assembly (22) at the other end; A hot air pipe (219) is connected to the center of the back of the heating box (211).

2. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 1, characterized in that: The heat exhaust assembly (22) comprises a protective frame (221) located on the front and back sides of the solar panel (1) and supported by a support, a positioning rod (222) is fixed inside the front protective frame (221), two linear modules (223) are fixed inside the back protective frame (221), two sliding seats (224) are slidably connected to the outer side of the positioning rod (222), two outer pipes (225) are fixed between the two sliding seats (224) and the two linear modules (223), respectively, an inner pipe (226) is fixed inside the outer pipe (225), a plurality of liquid outlet heads (227) are connected to the lower surface of the inner pipe (226), one end of the liquid outlet head (227) penetrates and extends to the outer side of the outer pipe (225) and faces the direction of the solar panel (1), and a plurality of gas outlet heads (228) are connected to the left and right sides of the outer pipe (225).

3. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 2, characterized in that: The front ends of the two inner pipes (226) penetrate and extend to the front side of the outer pipe (225), and are connected to the hot water pipe (218) through a three-way pipe, and the hot air pipe (219) is connected to the rear ends of the two outer pipes (225) through a three-way pipe.

4. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 1, characterized in that: The heating box (211) is in the shape of a hollow rectangular box, and the partition plate (212) is located at the center of the heating box (211), and the front side of the partition plate (212) is filled with clean water in the heating box (211).

5. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 1, characterized in that: The left and right sides of the heating box (211) are partially missing to form an opening, a dust screen is fixed between the inner walls of the four sides of the opening, and the dust screen faces the fan (213).

6. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 2, characterized in that: The protective frame (221) is a long cuboid with hollow interior and missing lower surface, the inner diameter of the sliding seat (224) is matched with the outer diameter of the positioning rod (222), and the sliding seat (224) moves linearly left and right outside the positioning rod (222).

7. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 1, characterized in that: The auxiliary mechanism (3) comprises a plurality of support rods (301) fixed on the ground, a tow rod (302) is slidably connected inside the support rod (301), and the other end of the tow rod (302) is fixed perpendicularly to the lower surface of the solar panel (1); a spring (303) is fixed between the side of the support rod (301) opposite to the solar panel (1) and the outside of the tow rod (302).

8. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 1, characterized in that: The auxiliary mechanism (3) further comprises a motor (304) fixed on the upper surface of the heating box (211), and two push rods (305) are fixed outside the motor (304).

9. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 8, characterized in that: The two push rods (305) are indirectly contacted with the lower surface of the solar panel (1) and push the solar panel (1) to shake up and down through the output shaft of the motor (304).

10. A device for anti-icing and de-icing of photovoltaic solar panels according to claim 2, characterized in that: The length of the protective frame (221) is greater than that of the solar panel (1), and the two protective frames (221) are symmetrically distributed on the front and rear sides of the solar panel (1).

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