Reflection mechanism and photovoltaic system

Abstract

The utility model discloses a reflection mechanism and a photovoltaic system, the reflection mechanism comprises a storage assembly, a reflection layer and a power assembly, the reflection layer is arranged on the storage assembly and has a first posture and a second posture; the power assembly is in transmission connection with the reflecting layer or the storage assembly, so that the reflecting layer is switched between a first posture and a second posture, and in the first posture, the reflecting layer avoids the light receiving surface of the photovoltaic array; in the second posture, the reflecting layer is located on the light receiving side of the photovoltaic array to reflect light. The reflection mechanism can be applied to a photovoltaic array of a photovoltaic system. When the photovoltaic system is low in electricity demand, the power assembly drives the reflecting layer to the second posture so as to adjust the direction of the light path and transmit the light path to other energy storage equipment for energy storage, and when the photovoltaic system is high in electricity demand, the power assembly drives the reflecting layer to the first posture so that the photovoltaic array can generate power normally. Therefore, the energy transmission mechanism of the photovoltaic system is expanded by adopting the reflection mechanism provided by the invention.

Description

Technical Field

[0001] This application relates to the field of photovoltaic system technology, and in particular to a reflective mechanism and a photovoltaic system. Background Technology

[0002] In a power system, energy storage is performed when electricity demand is low, and power generation is performed when electricity demand is high. As a supplementary energy source for the power system, photovoltaic systems currently typically transmit light energy to batteries for energy storage after it is processed by a photovoltaic array. However, due to the single energy transmission mechanism, energy storage cannot continue once the battery is fully charged, or it cannot store energy once the battery fails.

[0003] Therefore, how to expand the energy transmission mechanism of photovoltaic systems has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This application proposes a reflection mechanism and a photovoltaic system to expand the energy transmission mechanism of photovoltaic systems.

[0005] To achieve the above objectives, this application discloses the following technical solutions:

[0006] In a first aspect, this application provides a reflection mechanism that can be applied to a photovoltaic array in a photovoltaic system. The reflection mechanism includes a housing component, a reflective layer, and a power component. The reflective layer is disposed on the housing component and has a first posture and a second posture. The power component is drivenly connected to the reflective layer or the housing component to switch the reflective layer between the first posture and the second posture. In the first posture, the reflective layer avoids the light-receiving surface of the photovoltaic array. In the second posture, the reflective layer is located on the light-receiving side of the photovoltaic array to reflect light.

[0007] In some embodiments, the reflective layer is a flexible reflective film.

[0008] In some embodiments, the storage component includes a scroll, with a first end of the reflective layer fixed to the scroll and a counterweight disposed at a second end of the reflective layer; the scroll is connected to the power component for transmission.

[0009] In some embodiments, the counterweight includes a counterweight rod disposed at the second end of the reflective layer.

[0010] In some embodiments, the counterweight rod has bosses at both ends.

[0011] In some embodiments, the reflector also includes a slide rail for mounting on the photovoltaic array, the slide rail including a slide path that slides in conjunction with the boss.

[0012] In some embodiments, the reel includes a first reel and a second reel arranged coaxially, both of which are wound with a reflective layer.

[0013] In some embodiments, the first and second reels serve as the power input terminals for both.

[0014] In some embodiments, the power assembly includes a fixed base, a motor, two pulleys, and a timing belt, wherein the motor is mounted on the fixed base; one pulley is synchronously connected to the reel, and the other pulley is synchronously connected to the output shaft of the motor; the timing belt is sleeved on the outer periphery of the two pulleys.

[0015] In some embodiments, the reflection mechanism also includes a bracket, on which both the storage component and the power component are fixed.

[0016] In some embodiments, the housing component includes a first drive wheel, a second drive wheel, a synchronous belt, a first roller, and a second roller. The first roller is coaxially driven with the first drive wheel, and the second roller is coaxially driven with the second drive wheel. The reflective layer is wound around the first roller and the second roller, and the photovoltaic panel of the photovoltaic array is located within the rotation space of the reflective layer.

[0017] The reflective layer is a flexible reflective film with a reflective part and a light-transmitting part. When the power component drives the first drive wheel to rotate, the reflective layer switches between a first posture and a second posture. In the first posture, the reflective part avoids the light-receiving surface of the photovoltaic array. In the second posture, the reflective part is located on the light-receiving side of the photovoltaic array to reflect light.

[0018] In some embodiments, the housing assembly further includes a tension roller, with the reflective layer sequentially fitted onto the first roller, the second roller, and the tension roller.

[0019] In some embodiments, the housing component includes a first drive wheel, a second drive wheel, a synchronous belt, a first roller, and a second roller. The first roller is coaxially driven with the first drive wheel, and the second roller is coaxially driven with the second drive wheel. The reflective layer is wound around the first roller and the second roller, and the photovoltaic panel of the photovoltaic array is located within the rotation space of the reflective layer.

[0020] The reflective layer has a reflective part and a light-transmitting part. The light-transmitting part is a flexible structure, and the reflective part is a rigid structure. When the power component drives the first drive wheel to rotate, the reflective layer switches between a first posture and a second posture. In the first posture, the reflective part avoids the light-receiving surface of the photovoltaic array. In the second posture, the reflective part is located on the light-receiving side of the photovoltaic array to reflect light.

[0021] Secondly, this application provides a photovoltaic system, including a collector, a photovoltaic array, and a reflection mechanism as described above, wherein the reflection mechanism is disposed on the light-absorbing surface of the photovoltaic array, and the light-absorbing component of the collector is arranged on the reflection path of the reflection layer of the reflection mechanism.

[0022] As can be seen from the above technical solution, the reflective mechanism disclosed in this application can be applied to photovoltaic arrays in photovoltaic systems. When the photovoltaic system has low electricity demand, the power component drives the reflective layer to a second posture to adjust the direction of the light path and transmit the light energy to other energy storage devices for storage, such as solar collectors. When the photovoltaic system has high electricity demand, the power component drives the reflective layer to a first posture so that the photovoltaic array can generate electricity normally. Thus, the reflective mechanism described in this application expands the energy transmission mechanism of photovoltaic systems. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0024] Figure 1 A side view of a reflection mechanism in a first posture provided in an embodiment of this application;

[0025] Figure 2 A side view of a reflection mechanism in a second posture provided in an embodiment of this application;

[0026] Figure 3 for Figure 2 Enlarged view of section A;

[0027] Figure 4 for Figure 2 Enlarged view of section B;

[0028] Figure 5 A perspective view of a counterweight rod provided in an embodiment of this application;

[0029] Figure 6 A perspective view of a counterweight rod and a slide rail in accordance with an embodiment of this application;

[0030] Figure 7 for Figure 6 A sectional view of section C-C;

[0031] Figures 8a to 8c A perspective view of three power components and storage components provided in the embodiments of this application;

[0032] Figure 9 A perspective view of the transmission and cooperation between a power component and a storage component provided in an embodiment of this application;

[0033] Figure 10 A side view of another reflection mechanism provided in an embodiment of this application in a first posture;

[0034] Figure 11 A schematic diagram of a photovoltaic system in a power generation state provided in an embodiment of this application;

[0035] Figure 12 A schematic diagram of a photovoltaic system in energy storage mode provided in an embodiment of this application;

[0036] Figure 13 This is a schematic diagram illustrating the connection relationship between a reflective mechanism and a photovoltaic array, provided in an embodiment of this application.

[0037] Figure 14 A perspective view of the second type of reflective mechanism provided in the embodiments of this application in a second posture; Figure 15 A side view of the second type of reflection mechanism provided in this application embodiment when it is in a second posture;

[0038] Figure 16 A perspective view of the second type of reflective mechanism provided in the embodiments of this application in the first posture;

[0039] Figure 17 A side view of the second type of reflection mechanism provided in this application embodiment when it is in the first posture;

[0040] Figure 18 A perspective view of the third type of reflective mechanism provided in the embodiments of this application in the second posture;

[0041] Figure 19 A side view of the third type of reflection mechanism provided in this application embodiment when it is in the second posture;

[0042] Figure 20 A perspective view of the third type of reflective mechanism provided in the embodiments of this application in the first posture;

[0043] Figure 21 A side view of the third type of reflection mechanism provided in the embodiments of this application when it is in the first posture;

[0044] Figure 22 A perspective view of the fourth type of reflective mechanism provided in the embodiments of this application when it is in the second posture;

[0045] Figure 23 A perspective view of the fourth reflective mechanism provided in the embodiments of this application in the first posture;

[0046] In the diagram: 10-Reflection mechanism; 20-Photovoltaic array; 30-Collector; 21-Longitudinal beam; 22-Crossbeam; 23-Intermediate beam; 24-Column; 25-Photovoltaic panel;

[0047] 100 - Storage component; 200 - Reflective layer; 300 - Power component; 400 - Stand;

[0048] 110-Spindle; 111-First spindle; 112-Second spindle; 130-Drive shaft; 131-Flat key; 132-Retaining ring; 141-First drive wheel; 142-Second drive wheel; 143-Synchronous belt; 144-First roller; 145-Second roller; 146-Tension roller;

[0049] 210 - Counterweight bar; 211 - Boss; 220 - Through hole; 230 - Slide rail; 231 - Slide path; 240 - Light-transmitting part; 250 - Reflective part;

[0050] 310-Fixed base; 320-Motor; 330-Pulley; 340-Synchronous belt. Detailed Implementation

[0051] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0052] Currently, most photovoltaic (PV) systems rely on battery energy storage, which fails once the battery is damaged. To address this, the inventors have proposed a novel approach: when electricity demand is low, the PV system can convert light energy into heat energy for storage; when electricity demand is high, it can generate electricity normally, thus expanding the energy storage capabilities of PV systems. To achieve this functionality, this application provides a reflective mechanism with a first and a second posture. When the reflective mechanism is in the first posture, the PV system can generate electricity normally; when the reflective mechanism is in the second posture, it reflects light energy to the heat storage structure for energy storage as heat.

[0053] To illustrate how to expand the energy storage methods of photovoltaic systems, this application describes the structure of the reflector mechanism in detail with reference to the accompanying drawings:

[0054] See Figures 1 to 10 To achieve the above objectives, this application discloses the following technical solutions:

[0055] See Figure 1 , Figure 1The structure of a reflection mechanism 10 is shown. The reflection mechanism 10 can be applied to a photovoltaic array 20 of a photovoltaic system. The reflection mechanism 10 includes a housing component 100, a reflective layer 200, and a power component 300. The reflective layer 200 is disposed on the housing component 100 and has a first posture and a second posture. The power component 300 is drivenly connected to the reflective layer 200 or the housing component 100 to switch the reflective layer 200 between the first posture and the second posture. In the first posture, the reflective layer 200 avoids the light-receiving surface of the photovoltaic array 20. In the second posture, the reflective layer 200 is located on the light-receiving side of the photovoltaic array 20 to reflect light.

[0056] Combination Figures 1 to 10 See Figure 11 and Figure 12 The reflective mechanism 10 disclosed in this application can be applied to the photovoltaic array 20 of a photovoltaic system. When the photovoltaic system has low electricity demand, the power component 300 drives the reflective layer 200 to a second posture, such as... Figure 12 As shown, the system reflects light energy to other solar collectors 30 and stores it as heat energy. When the photovoltaic system has high electricity demand, the power component 300 drives the reflective layer 200 to a first posture, such as... Figure 11 As shown, this allows the photovoltaic array 20 to generate electricity normally. Therefore, the aforementioned reflective mechanism 10 of this application expands the energy transmission mechanism of the photovoltaic system.

[0057] It should be noted that the photovoltaic array 20 mentioned above includes a light-receiving surface and a backlighting surface. The side located on the light-receiving surface is defined as the light-receiving side, and the side located on the backlighting surface is defined as the backlighting side. The reflective layer 200 mentioned above can be a rigid reflective layer or a flexible reflective film. In this example, the reflective layer 200 is a flexible reflective film. The flexible reflective film is made of an aluminized polymer film, such as... Figures 1 to 10 ,as well as Figures 14 to 17 As shown.

[0058] When the reflective layer 200 is a flexible reflective film, the storage component 100 can store the reflective layer 200 by rolling it up. Specifically, rotating it in a preset direction will store the reflective layer 200, and rotating it in the opposite direction will unfold the reflective layer 200. The preset direction can be either clockwise or counterclockwise.

[0059] In one example of this application, the storage component 100 includes a scroll 110, a first end of a reflective layer 200 fixed to the scroll 110, and a counterweight disposed at the second end of the reflective layer 200; the scroll 110 is connected to the power component 300 via a transmission connection. When the scroll 110 rotates in a preset direction, the reflective layer 200 is stored; when the scroll 110 rotates in the opposite direction, the reflective layer 200 is unfolded. Figure 1 and Figure 11 As shown.

[0060] In particular, since a counterweight is provided at the second end of the reflective layer 200, the reflective layer 200 can be flattened under the action of the counterweight, thereby improving the reflective effect of the reflective layer 200.

[0061] It should be noted that the aforementioned counterweight can be any structural component with weight. In some examples, the counterweight includes a counterweight rod 210 disposed at the second end of the reflective layer 200, such as... Figure 2 and 3 As shown.

[0062] The counterweight 210 can be bonded to the second end of the reflective layer 200, or the second end of the reflective layer 200 has a through hole 220 through which the counterweight 210 can pass.

[0063] To reduce the swaying of the reflective layer 200 during the transition to the second attitude, the counterweight rod 210 is provided with bosses 211 at both ends. The bosses 211 can engage with the edges of the photovoltaic array 20, thereby restricting the movement of the reflective layer 200. Figure 4 , Figure 5 and Figure 6 As shown.

[0064] To further optimize the above solution, the reflective mechanism 10 also includes a slide rail 230, which includes a slide path 231 that slides in conjunction with the boss 211, such as... Figure 6 and Figure 7 As shown. During installation, the boss 211 is located inside the slide rail 230. When the reflective layer 200 unfolds under the action of gravity, the boss 211 cooperates with the slide rail 231, thereby limiting the swaying of the reflective layer 200.

[0065] The aforementioned slide rail 230 can be installed on one side of the photovoltaic array. One end of the counterweight rod 210 is slidably disposed within the slide rail 231. During the unfolding of the reflective layer 200, the counterweight rod 210 slides downward within the slide rail 231. During the retraction of the reflective layer 200, the counterweight rod 210 slides upward within the slide rail 231.

[0066] It should be noted that one scroll 110 may correspond to one reflective layer 200, or it may correspond to multiple reflective layers 200. See [link / reference] Figure 8a The spool 110 includes one, with the power input end located at one end of the spool 110; see also Figure 8b and Figure 8c The reel 110 includes a first reel 111 and a second reel 112 arranged coaxially, both of which are wound with a reflective layer 200. The power input end of the coaxially arranged first reel 111 and second reel 112 can be one end of the two reels as a whole, such as... Figure 8b As shown, it can also be between the first scroll 111 and the second scroll 112, such as Figure 8c As shown in the figure, the first scroll 111 and the second scroll 112 serve as the power input end. As a result, the force on the first scroll 111 and the second scroll 112 will be relatively uniform, and the probability of deflection will be reduced. At the same time, the fact that the two scrolls correspond to one power component 300 can also reduce the cost of the entire reflection mechanism 10.

[0067] in addition, Figure 8a , Figure 8b and Figure 8c One implementation of the power assembly 300 is also shown. The power assembly 300 includes a fixed base 310, a motor 320, two pulleys 330 and a synchronous belt 340. The motor 320 is mounted on the fixed base 310. One pulley 330 is synchronously connected to the reel 110, and the other pulley 330 is synchronously connected to the output shaft of the motor 320. The synchronous belt 340 is sleeved on the outer periphery of the two pulleys 330.

[0068] Of course, in other examples of this application, the power assembly 300 may only include a motor 320, which directly drives the reel 110 to rotate. In this case, the output shaft of the motor 320 is coaxially connected to one end of the reel 110. For example, one end of the reel 110 is sleeved to the output shaft of the motor 320 through a sleeve. Figure 8b As shown.

[0069] In other examples, the motor can also drive the transmission in the middle of the reel. For instance, the output shaft of the motor 320 is provided with helical teeth, and the middle of the reel 110 is provided with gear teeth that mesh with the helical teeth (i.e., the two have a worm gear meshing relationship). When the output shaft of the motor 320 rotates, it drives the reel 110 to rotate. Figure 8c and Figure 9 As shown. No further description is provided here.

[0070] See Figure 9 The pulley 330 located on the reel is arranged coaxially with the reel for transmission. Specifically, a transmission shaft 130 is provided between the first reel 111 and the second reel 112. The transmission shaft 130 is connected to the pulley 330 via a key. The key can be a flat key 131 or a spline. In the figure, the key is a flat key 131.

[0071] In addition, to improve the stability of the pulley 330, two retaining rings 132 can be provided on the drive shaft 130 to restrict the movement of the pulley 330 along the axial direction of the drive shaft 130.

[0072] The aforementioned reflective mechanism 10 can be installed separately on the photovoltaic array 20 as a single component, which can improve the coupling between the reflective mechanism 10 and the photovoltaic array 20. See [link to relevant documentation]. Figures 1 to 9In some examples of this application, all the structures of the reflector 10 can be integrated on the bracket 400, which can be set on the photovoltaic array 20 for easy installation.

[0073] See Figure 10 The reflection mechanism 10 also includes a bracket 400, on which the storage component 100 and the power component 300 are fixed. It should be noted that any structure capable of mounting the storage component 100, power component 300, etc., can be understood as the bracket 400. The bracket 400 can be a frame structure or a shell structure, which will not be described in detail here.

[0074] See Figure 11 and Figure 12 This application provides a photovoltaic system, including a collector 30, a photovoltaic array 20, and a reflection mechanism 10 as described above. The reflection mechanism 10 is disposed on the light-absorbing surface of the photovoltaic array 20, and the light-absorbing components of the collector 30 are arranged on the reflection path of the reflection layer 200 of the reflection mechanism 10. Since the reflection mechanism 10 has the above-mentioned effects, including the corresponding effects of the reflection mechanism 10, it will not be described in detail here.

[0075] It should be noted that the solar collector 30 is arranged on the reflective path of the reflective layer 200. This means that when the reflective layer 200 is in its second position, it can reflect light energy to the light-absorbing component, which can then convert the light energy into heat energy. The aforementioned reflective path can be fixed or adjusted, and this adjustment can be made by the photovoltaic array 20. If the photovoltaic array 20 has the function of tracking light energy, it can also be adjusted so that the reflective layer 200 can reflect light energy to the light-absorbing component.

[0076] See Figure 13 The photovoltaic array 20 may include longitudinal beams 21, transverse beams 22, intermediate beams 23 and columns 24. The longitudinal beams 21, transverse beams 22 and intermediate beams 23 form a rectangular frame structure to support the photovoltaic panels 25. The columns 24 are connected to the intermediate beams 23 to support the entire rectangular frame structure.

[0077] In the diagram, the storage assembly 100 of the reflection mechanism 10 is mounted on one crossbeam 22, and the power assembly 300 of the reflection mechanism 10 is mounted on another crossbeam 22. When the storage assembly 100 includes a spool 110, the axial direction of the spool 110 is parallel to the length direction of the crossbeam 22. When the power assembly 300 is a belt drive assembly, the synchronous belt 340 of the power assembly 300 is parallel to the intermediate beam 23.

[0078] See Figures 14 to 17 This application also discloses a reflective mechanism, which is related to... Figures 1 to 10The difference in the disclosed reflective mechanism lies in the structure of the receiving component 100. In this example, the receiving component 100 includes a first drive wheel 141, a second drive wheel 142, a synchronous belt 143, a first roller 144, and a second roller 145. The reflective layer 200 is a flexible reflective film. The first roller 144 is coaxially driven with the first drive wheel 141, and the second roller 145 is coaxially driven with the second drive wheel 142. The reflective layer 200 is wound around the first roller 144 and the second roller 145. The photovoltaic panel 25 is located within the rotational space of the reflective layer 200, and the reflective layer 200 has a reflective portion 250. When the power assembly 300 drives the first drive wheel 141 to rotate, the synchronous belt 143 follows the first drive wheel 141 and the second drive wheel 142 to rotate. The reflective layer 200 moves with the first roller 144 and the second roller 145, thereby realizing the switching of the reflective layer 200 between the first posture and the second posture. In the first posture, the reflective part 250 avoids the light-receiving surface of the photovoltaic array 20. In the second posture, the reflective part 250 is located on the light-receiving side of the photovoltaic array 20 to reflect light. Figure 14 and Figure 15 In the second orientation, the light-transmitting part 240 of the reflective layer 200 is located on the light-receiving side of the photovoltaic panel 25, and the reflective part 250 is located on the backlight side of the photovoltaic panel 25. Figure 16 and Figure 17 In the first orientation, the reflective part 250 of the reflective layer 200 is located on the light-receiving side of the photovoltaic panel 25, and the light-transmitting part 240 of the reflective layer 200 is located on the backlight side of the photovoltaic panel 25.

[0079] To improve the tension of the reflective layer in conjunction with the first roller 144 and the second roller 145, some examples of this application may also include a tensioning roller 146, such as... Figures 18 to 21 As shown, the reflective layer 200 is sequentially mounted on the first roller 144, the second roller 145, and the tension roller 146. The tension of the reflective layer 200 can be adjusted by adjusting the distance between the tension roller 146 and the longitudinal beam 21.

[0080] This application also discloses including Figures 14 to 21 The photovoltaic system with the reflective mechanism shown.

[0081] See Figures 22 to 23 This application also discloses a reflective mechanism, which is related to... Figures 14 to 17The difference in the disclosed reflection mechanism lies in that the reflective layer 200 includes a light-transmitting part 240 and a reflective part 250, wherein the light-transmitting part 240 is a flexible structure and the reflective part 250 is a rigid structure. The reflective part 250 is sequentially wound around the first roller 144 and the second roller 145. The photovoltaic panel 25 is located within the winding space of the reflective layer 200. The reflective layer 200 moves with the first roller 144 and the second roller 145, thereby realizing the switching of the reflective layer 200 between a first posture and a second posture. In the first posture, the reflective part 250 avoids the light-receiving surface of the photovoltaic array 20. In the second posture, the reflective part 250 is located on the light-receiving side of the photovoltaic array 20 to reflect light. Figure 22 In the second orientation, the light-transmitting part 240 of the reflective layer 200 is located on the light-receiving side of the photovoltaic panel 25, and the reflective part 250 avoids the light-receiving surface of the photovoltaic array 20 so as not to affect the light-receiving surface of the photovoltaic array 20. For example, the reflective part 250 can be located on the front, rear, left or right side of the photovoltaic array 20. Figure 23 In the first orientation, the reflective part 250 of the reflective layer 200 is located on the light-receiving side of the photovoltaic panel 25, and achieves the purpose of reflecting light by blocking the light-receiving surface of the photovoltaic array 20.

[0082] It should be noted that the light-transmitting part 240 is a structure that allows sunlight to pass through, while the reflective part 250 is a structure that reflects sunlight.

[0083] As can be seen from the above description, the reflective layer 200 can be a flexible structure, a rigid material structure, or a combination of a flexible structure and a rigid material.

[0084] This application also discloses including Figures 21 to 22 The photovoltaic system with the reflective mechanism shown.

[0085] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0086] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0087] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0088] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A reflecting mechanism, characterized by, The reflection mechanism is applied to a photovoltaic array of a photovoltaic system, and comprises a receiving assembly, a reflection layer, and a power assembly. The reflection layer is arranged on the receiving assembly and has a first posture and a second posture. The power assembly is in transmission connection with the reflection layer or the receiving assembly to switch the reflection layer between the first posture and the second posture. In the first posture, the reflection layer avoids the light-receiving surface of the photovoltaic array. In the second posture, the reflection layer is located on the light-receiving side of the photovoltaic array to reflect light.

2. The reflecting means according to claim 1, wherein The reflection layer is a flexible reflection film.

3. The reflecting means according to claim 1, wherein The receiving assembly comprises a reel, and a first end of the reflection layer is fixed on the reel. A counterweight is arranged at a second end of the reflection layer. The reel is in transmission connection with the power assembly.

4. The reflecting means according to claim 3, wherein The counterweight comprises a counterweight rod arranged at the second end of the reflection layer.

5. The reflecting means according to claim 4, wherein Both ends of the counterweight rod are provided with bosses.

6. The reflecting means according to claim 5, wherein The reflection mechanism further comprises a slide rail for mounting on the photovoltaic array, and the slide rail comprises a slide channel in sliding connection with the bosses.

7. The reflecting means according to claim 3, wherein The reel comprises coaxially arranged first and second reels, and the first and second reels are both wound with the reflection layer.

8. The reflecting means according to claim 7, wherein Both the first and second reels serve as power input ends.

9. The reflecting means according to any one of claims 3 to 8, characterized in that The power assembly comprises a fixed seat, a motor, two pulleys, and a synchronous belt. The motor is mounted on the fixed seat. One of the pulleys is in synchronous transmission connection with the reel, and the other pulley is in transmission connection with an output shaft of the motor. The synchronous belt is sleeved on the outer periphery of the two pulleys.

10. The reflecting means according to any one of claims 1 to 8, wherein The reflection mechanism further comprises a support, and the receiving assembly and the power assembly are both fixed on the support.

11. The reflecting mechanism of claim 1, wherein, The receiving assembly comprises first and second driving wheels, a synchronous belt, a first roller, and a second roller. The first roller is coaxially in transmission connection with the first driving wheel, and the second roller is coaxially in transmission connection with the second driving wheel. The reflection layer is wound around the first and second rollers, and the photovoltaic panel of the photovoltaic array is located in the rotation space of the reflection layer. The reflection layer is a flexible reflection film, and has a light-reflecting part and a light-transmitting part. When the power assembly drives the first driving wheel to rotate, the reflection layer is switched between the first posture and the second posture. In the first posture, the light-reflecting part avoids the light-receiving surface of the photovoltaic array. In the second posture, the light-reflecting part is located on the light-receiving side of the photovoltaic array to reflect light.

12. The reflecting mechanism of claim 11, wherein, The receiving assembly further comprises a tensioning roller, and the reflection layer is sequentially sleeved on the first roller, the second roller, and the tensioning roller.

13. The reflecting mechanism of claim 1, wherein, The receiving assembly comprises first and second driving wheels, a synchronous belt, a first roller, and a second roller. The first roller is coaxially in transmission connection with the first driving wheel, and the second roller is coaxially in transmission connection with the second driving wheel. The reflection layer is wound around the first and second rollers, and the photovoltaic panel of the photovoltaic array is located in the rotation space of the reflection layer. The reflective layer has a light-reflecting part and a light-transmitting part, the light-transmitting part is a flexible structure, the light-reflecting part is a rigid structure, when the power assembly drives the first driving wheel to rotate, the reflective layer switches between a first attitude and a second attitude, wherein in the first attitude, the light-reflecting part avoids the light-receiving surface of the photovoltaic array, and in the second attitude, the light-reflecting part is located on the light-receiving side of the photovoltaic array to reflect light.

14. A photovoltaic system characterized by, The reflective mechanism as claimed in any one of claims 1 to 13 is arranged on the light-receiving surface of the photovoltaic array, and a light-receiving component of the heat collector is arranged on the light-reflecting path of the reflective layer of the reflective mechanism.

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