Photovoltaic and photo-thermal integrated assembly based on flat micro heat pipe

Abstract

The invention discloses a photovoltaic and photo-thermal integrated assembly based on flat micro heat pipes, and relates to the field of solar photovoltaics, the photovoltaic and photo-thermal integrated assembly comprises an installation box, a solar cell, a heat collection piece and a heat preservation plate, and the solar cell is fixedly arranged in the installation box; the heat collecting piece is arranged in the mounting box and is used for collecting heat of the solar cell and heating the working medium; the heat preservation plate is arranged in the mounting box and located below the heat collection piece. A heat dissipation opening is formed in the heat preservation plate, and an opening and closing assembly is rotationally arranged in the heat dissipation opening and used for opening and closing the heat dissipation opening so that the heat dissipation performance of the heat preservation plate can be improved and reduced. When the temperature is higher than the preset temperature threshold value, the opening-closing assembly is controlled to be in an opening state; and when the temperature is lower than the preset temperature threshold value, the opening-closing assembly is controlled to be in a closed state. In this way, flexible regulation and control of heat collection and power generation requirements are achieved.

Description

Technical Field

[0001] The present application relates to the field of solar photovoltaics, and particularly to a photovoltaic-thermal integrated component based on flat micro heat pipes. Background Art

[0002] In existing solar comprehensive utilization systems, solar cells are mainly used to absorb solar radiation and convert it into electrical energy. However, during operation, solar cells not only generate electrical energy but also absorb and convert part of the solar energy into heat energy. If this part of the heat energy can be effectively utilized, it will help improve the overall energy utilization efficiency. To further improve the thermal efficiency of the system, some technical solutions set a heat collection structure below the battery panel to jointly heat the heat collection component with electrical energy and heat energy, enhancing the heat conduction effect. At the same time, to reduce heat loss during heat conduction, a thermal insulation board is often set outside the system to improve the thermal insulation performance.

[0003] However, existing thermal insulation structures are generally in a fixed form and are difficult to dynamically adjust according to changes in environmental temperature. For example, under high-temperature conditions in summer, the system is prone to a decrease in the efficiency of the battery panel due to untimely heat dissipation, affecting the power generation performance; while in a low-temperature environment in winter, heat collection is more needed. If the thermal insulation effect is insufficient, it is not conducive to the accumulation and conduction of heat energy, reducing the overall thermal utilization efficiency.

[0004] Therefore, how to design a solar energy utilization device that can flexibly adjust the thermal insulation performance according to the external environment to balance the power generation efficiency and heat conduction efficiency in different seasons has become a technical problem that urgently needs to be solved. Summary of the Invention

[0005] To solve the problem of improving heat transfer efficiency, the present application provides a photovoltaic-thermal integrated component based on flat micro heat pipes.

[0006] The present application provides a photovoltaic-thermal integrated component based on flat micro heat pipes, adopting the following technical solutions: A photovoltaic-thermal integrated component based on flat micro heat pipes, including an installation box, further including: Solar cells, which are fixedly arranged in the installation box; A heat collection component, which is arranged below the solar cells and is used to collect the energy not absorbed by the solar cells and heat the working medium; A thermal insulation board, which is arranged in the installation box and is located below the heat collection component; Wherein, a heat dissipation opening is arranged on the thermal insulation board, and an opening and closing component is rotatably arranged in the heat dissipation opening. The opening and closing component is used to open and close the heat dissipation opening to facilitate increasing or decreasing the heat dissipation of the thermal insulation board.

[0007] By adopting the above technical solution, part of the solar energy is absorbed by the solar cells and converted into electrical energy, and part of the unabsorbed solar energy is absorbed by the heat collector and converted into heat energy, improving the solar energy utilization efficiency; the setting of the heat preservation board reduces the heat loss and further increases the heat efficiency. Further, the setting of the opening and closing component can flexibly adjust the heat preservation performance of the heat preservation board according to the change of weather. That is, when the temperature is higher than the preset temperature threshold, the opening and closing component is controlled to be in the open state to increase the heat dissipation capacity of the solar cells and improve the power generation efficiency; when the temperature is lower than the preset temperature threshold, the opening and closing component is controlled to be in the closed state, thereby improving the heat collection efficiency.

[0008] Optionally, a fitting groove is arranged on the periphery of the heat dissipation port, and the fitting groove is communicated with the heat dissipation port. The opening and closing component includes: A mounting member, which is rotatably arranged on the periphery of the heat dissipation port; A driving ring, which is rotatably arranged in the fitting groove to drive the mounting member to rotate; A fitting rod, which is arranged on one side of the mounting box, and the fitting rod is hinged to the driving ring.

[0009] By adopting the above technical solution, the communication between the fitting groove and the heat dissipation port provides an installation space for the opening and closing component, enabling the opening and closing component to effectively control the opening and closing of the heat dissipation port. The mounting member is rotatably arranged on the periphery of the heat dissipation port and can perform accurate opening and closing operations under the drive of the driving ring, thereby adjusting the heat dissipation performance of the heat preservation board. The driving ring is rotatably arranged in the fitting groove, and through the fixed connection with the fitting rod, the control of the state of the heat dissipation port by external drive is realized.

[0010] Optionally, the mounting member includes: A mounting ring, which is fixedly arranged in the heat dissipation port and is rotatably connected to the driving ring; A fixing plate, which is fixedly connected to the mounting ring, coaxially arranged with the mounting ring, and there is a gap between the fixing plate and the mounting ring; A plurality of blades, which are rotatably arranged in the gap through a rotating shaft, evenly distributed along the direction of the fixing plate and annularly arranged around the direction of the fixing plate; the plurality of blades form a closed flow channel through the rotation of the rotating shaft.

[0011] By adopting the above technical solution, the mounting ring is fixed inside the heat dissipation opening and rotatably connected to the driving ring, providing a stable rotation foundation for the entire opening and closing assembly. The fixing plate is coaxially arranged with the mounting ring in the gap, enhancing the structural stability and at the same time providing space for the rotation of the blades. A plurality of blades are rotatably arranged in the gap along the axis of the fixing plate through rotating shafts and can completely close the gap. When the blades rotate driven by the driving ring, the opening and closing degree of the heat dissipation opening can be controlled, thereby effectively adjusting the heat dissipation performance of the heat preservation plate, and further ensuring the efficient collection of heat of the solar cell.

[0012] Optionally, a guiding plate is fixedly arranged on the circumferential side of the mounting ring, a guiding groove is arranged on the guiding plate, the guiding plate is arranged in one-to-one correspondence with the number of the blades, each rotating shaft is fixedly arranged at one end of the guiding plate, a guiding column is fixedly arranged on the circumferential side of the driving ring, and the end of the guiding column far away from the driving ring is slidably arranged in the guiding groove, wherein the guiding column and the guiding groove are arranged in one-to-one correspondence.

[0013] By adopting the above technical solution, the arrangement of the guiding plate and the guiding groove can accurately guide the rotation of the blades, ensure the smooth movement of the blades during the opening or closing of the heat dissipation opening, and improve the working stability of the opening and closing assembly. At the same time, since the rotating shaft is slidably arranged in the guiding groove, the opening and closing angle of the blades can be finely controlled, so as to realize the flexible adjustment of the heat dissipation performance of the heat dissipation opening and further optimize the heat management performance of the heat preservation plate.

[0014] Optionally, two groups of the opening and closing assemblies are arranged in an array on the heat preservation plate, and each group of the opening and closing assemblies is parallel to the matching rod.

[0015] By adopting the above technical solution, the heat dissipation openings on the heat preservation plate can achieve more uniform heat dissipation regulation through two groups of opening and closing assemblies. Each group of opening and closing assemblies is arranged parallel to the matching rod, ensuring the consistent and stable opening and closing actions of the heat dissipation openings, thereby effectively adjusting the heat dissipation performance of the heat preservation plate and improving the heat conduction efficiency of the overall device.

[0016] Optionally, the heat collection member includes: A heat collection pipe, the heat collection pipe penetrates through the installation box, and the heat collection pipe is parallel to the matching rod; A flat micro heat pipe, an elbow is arranged at the upper end of the flat micro heat pipe close to the heat collection pipe, and the elbows are uniformly and staggeredly arranged on the circumferential side of the heat collection pipe through heat conductive silica gel; A TPT backplane, and the flat micro heat pipe is arranged on the back of the TPT backplane through an EVA film.

[0017] By adopting the above technical solution, the heat collecting pipe penetrates through the installation box and is parallel to the matching rod, optimizing the working medium path. An elbow is provided at the upper end of the flat micro heat pipe close to the heat collecting pipe, and the flat micro heat pipes are evenly and staggeredly arranged on the periphery of the heat collecting pipe through thermal conductive silica gel, effectively increasing the heat exchange area and improving the heat transfer efficiency, enabling heat to be conducted from the solar cell to the water in the heat collecting pipe. The TPT backplane fixes the flat micro heat pipes to its back through the EVA film, enhancing the structural stability and ensuring good heat conduction performance, thereby further improving the overall heat collection efficiency of the photovoltaic-thermal integrated module. Among them, the setting and staggered arrangement of the elbows of the flat micro heat pipes reduce the overall thermal resistance of the device, improve the heat uniformity of the heat collecting pipe, accelerate the phase change rate of the working medium, and improve the heat exchange efficiency.

[0018] Optionally, a glass cover plate is provided in the installation box. The glass cover plate is located above the solar cell, and the glass cover plate is a photovoltaic glass, and an anti-reflection layer is coated on the surface of the photovoltaic glass.

[0019] By adopting the above technical solution, the glass cover plate is selected as a photovoltaic glass and an anti-reflection layer is coated on its surface, which can effectively reduce the reflection loss of sunlight, improve the light transmittance, and thus improve the overall power generation efficiency.

[0020] Optionally, the diameter of the heat collecting pipe is 20 mm - 25 mm.

[0021] By adopting the above technical solution, the diameter of the heat collecting pipe is set to 20 mm - 25 mm, which can adapt to the fluid flow requirements in different application scenarios.

[0022] In summary, the embodiment of the present invention provides a photovoltaic-thermal integrated module based on flat micro heat pipes, including at least one of the following beneficial technical effects: In the photovoltaic-thermal integrated module, the photovoltaic module requires the solar cell to have good heat dissipation performance to maintain the power generation efficiency, and the solar thermal module requires the heat collecting component to lose as little heat as possible to maintain the heat collection efficiency. The technical solution of the present invention sets an opening and closing component to adjust the power generation efficiency and heat collection efficiency to adapt to the temperature and environmental conditions in different seasons. Specifically, when the temperature is higher than the preset temperature threshold, the opening and closing component is controlled to be in the open state; when the temperature is lower than the preset temperature threshold, the opening and closing component is controlled to be in the closed state. Through the above method, the flexible regulation of heat collection and power generation requirements is realized.

[0023] The structural design of the opening and closing component enables it to have not only two states of open / closed, but also can adjust the opening and closing degree by rotating the blades to achieve precise control of the heat dissipation ability.

[0024] The glass cover plate is made of photovoltaic glass and an anti-reflection layer is coated on its surface, which can effectively reduce the reflection loss of sunlight, improve the light transmittance, and thus increase the solar radiation reaching the solar cell. Thereby, the overall power generation efficiency and heat collection efficiency are improved. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of a photovoltaic-thermal integrated component based on a flat micro heat pipe provided by an embodiment of the present invention; Figure 2 It is a schematic structural diagram of a heat collecting pipe in a photovoltaic-thermal integrated component based on a flat micro heat pipe provided by an embodiment of the present invention; Figure 3 It is a schematic structural diagram of a mounting member in a photovoltaic-thermal integrated component based on a flat micro heat pipe provided by an embodiment of the present invention; Figure 4 It is a cross-sectional view of a mounting member in a photovoltaic-thermal integrated component based on a flat micro heat pipe provided by an embodiment of the present invention; Figure 5 It is a schematic structural diagram of an opening and closing component in a photovoltaic-thermal integrated component based on a flat micro heat pipe provided by an embodiment of the present invention; Figure 6 It is a cross-sectional view of a connecting member in a photovoltaic-thermal integrated component based on a flat micro heat pipe provided by an embodiment of the present invention; Figure 7 For Figure 6 the enlarged view of part A in

[0027] Explanation of the reference numerals in the drawings: 1. Installation box; 11. Solar cell; 12. Thermal insulation board; 13. Heat dissipation port; 14. Fitting groove; 15. Driving ring; 16. Fitting rod; 17. Glass cover plate; 21. Heat collecting pipe; 22. Flat micro heat pipe; 23. TPT backplane; 24. EVA film; 3. Mounting member; 31. Mounting ring; 32. Fixed plate; 33. Blade; 34. Rotating shaft; 35. Gap; 41. Guide groove; 42. Guide plate; 43. Guide post; 44. Holding part; 51. First fixing rod; 52. Second fixing rod; 53. First convex block; 54. First groove; 55. Magnet. Detailed Description of the Invention

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] The following will further illustrate the present application in detail with reference to the attached Figures 1-7 This application will be further described in detail below.

[0031] Combined with Figure 1 、 Figure 2 and Figure 3 The embodiments of the present application disclose a photovoltaic-thermal integrated component based on a flat micro heat pipe, including: an installation box 1, further including a solar cell 11, a heat collection member, and a heat insulation board 12. The solar cell 11 is fixedly arranged in the installation box 1; the heat collection member is arranged in the installation box 1, and the heat collection member is used to collect the energy not absorbed by the solar cell 11 and heat the working medium; the heat insulation board 12 is arranged in the installation box 1, and the heat insulation board 12 is located below the heat collection member; wherein, a heat dissipation port 13 is arranged on the heat insulation board 12, and an opening and closing component is rotatably arranged in the heat dissipation port 13, and the opening and closing component is used to open and close the heat dissipation port 13 to facilitate increasing or decreasing the heat dissipation performance of the heat insulation board 12.

[0032] The heat collection member includes a heat collection pipe 21, a flat micro heat pipe 22, and a TPT backplane 23. The heat collection pipe 21 penetrates through the installation box 1, and the heat collection pipe 21 is parallel to the matching rod 16; an elbow is arranged at the upper end of the flat micro heat pipe 22 close to the heat collection pipe 21, and the elbows are uniformly and staggeredly arranged on the periphery of the heat collection pipe 21 through heat conductive silica gel; the TPT backplane 23 arranges the flat micro heat pipe 22 on the back of the TPT backplane 23 through an EVA film 24. The diameter of the heat collection pipe 21 is 20 mm - 25 mm. The diameter of the heat collection pipe 21 is set to 20 mm - 25 mm, which can adapt to the fluid flow requirements in different application scenarios.

[0033] In the embodiment of the present application, both the installation box 1 and the heat collecting pipe 21 are made of aluminum alloy materials, having good strength and heat conduction performance. Moreover, both the installation box 1 and the heat collecting pipe 21 are subjected to heat preservation and heat insulation treatment with heat-insulating materials. The solar cell 11 is made of monocrystalline silicon or polycrystalline silicon materials and is fixed on the TPT backplane 23 through the EVA adhesive film 24. Glass wool with low thermal conductivity, non-combustible, heat-resistant, frost-resistant, and corrosion-resistant. The flat micro heat pipe 22 is composed of multiple microchannels, and each is subjected to vacuum pumping and filling with working medium. The filled working medium is the R290 refrigerant. The filling amount of the refrigerant in each microchannel accounts for 10%-30% of the internal volume. When the liquid filling rate is too low, dry-out phenomenon is likely to occur inside the evaporation section, leading to the early occurrence of the dry-out limit, thus restricting the maximum heat transfer capacity of the micro heat pipe. On the contrary, when the liquid filling rate is too high, a liquid pool is likely to form at the lower part of the evaporation section. During the countercurrent flow of the gas-liquid two-phase, due to the viscous shear effect, the condensed working medium liquid phase in the condensation section may be brought back to the condensation section, causing overheating and dry-out in the evaporation section, and at the same time causing blockage in the condensation section, thus triggering the carry-over limit problem and affecting the normal operating performance of the heat pipe. Filling 10%-30% can ensure the full flow of the refrigerant in the microchannel and improve the heat exchange efficiency.

[0034] Combined with Figure 2 , the elbows of the flat micro heat pipe 22 are staggered on the periphery of the heat collecting pipe 21, forming an efficient heat exchange path. At the same time, multiple microchannels are all provided with micro fins, further increasing the heat exchange area and accelerating the phase change rate of the working medium.

[0035] During specific use, the solar cell 11 collects solar energy and converts the solar energy into electrical energy, that is, the solar cell 11 absorbs ultraviolet light and visible light, while the long-wave infrared light cannot be absorbed and turns into heat. Due to the settings of the TPT backplane 23 and the EVA adhesive film 24, the heat generated by the solar cell and the heat turned from the unabsorbed long-wave infrared light can be absorbed, thereby heating the refrigerant in the flat micro heat pipe 22. Then the refrigerant is heated and evaporated after heating. Under the action of gravity, the gas rises along the flat micro heat pipe 22 to the elbow, exchanges heat with the cold water in the heat collecting pipe 21 at the elbow, cools down and generates condensed water. The condensed water sinks along the flat micro heat pipe 22 to the bottom of the flat micro heat pipe 22 under the action of gravity and is reheated by solar energy and heat energy again, circulating repeatedly for heat collection.

[0036] Combined with Figure 3 and Figure 4 , in a specific application embodiment, a mating groove 14 is provided on the periphery of the heat dissipation port 13, the mating groove 14 is communicated with the heat dissipation port 13, and the opening and closing assembly includes a mounting member 3, a driving ring 15, and a mating rod 16. The mounting member 3 is rotatably arranged on the periphery of the heat dissipation port 13; the driving ring 15 is rotatably arranged in the mating groove 14 to drive the mounting member 3 to rotate; the mating rod 16 is arranged on one side of the installation box 1, and the mating rod 16 is fixedly connected with the driving ring 15.

[0037] Combined with Figure 5 Specifically, the mounting member 3 includes a mounting ring 31, a fixing plate 32, and blades 33. The mounting ring 31 is fixedly arranged in the heat dissipation opening 13, and the mounting ring 31 is rotatably connected to the driving ring 15; the fixing plate 32 is fixedly connected to the mounting ring 31, the fixing plate 32 is coaxially arranged with the mounting ring 31, and there is a gap 35 between the fixing plate 32 and the mounting ring 31; the blades 33 are rotatably arranged in the gap 35 through a rotating shaft 34, and a plurality of blades 33 are arranged along the axis of the fixing plate 32. Among them, each blade 33 closes the gap 35.

[0038] In the embodiment of the present application, the heat dissipation opening 13 is annular and located on the heat preservation plate 12. The matching groove 14 communicates with the heat dissipation opening 13 to form a rotating space for the driving ring 15. The outer peripheral side of the mounting ring 31 fits against the heat dissipation opening 13, and the mounting ring 31 is configured to rotate within the heat dissipation opening 13. The fixing plate 32 is cylindrical and is fixed within the mounting ring 31 through a support frame without affecting the rotation of the blades 33. The blades 33 are made of the same material as the heat preservation plate 12. The plurality of blades 33 are sequentially spliced to close the gap 35, thereby achieving the effect of heat preservation. The driving ring 15 is arranged in the matching groove 14, the driving ring 15 is sleeved on the outer peripheral side of the mounting ring 31, and a handheld portion 44 is arranged on the outer side of the driving ring 15. Among them, the handheld portion 44 passes through the outside of the mounting box 1, and a sliding groove for the handheld portion 44 to rotate is horizontally arranged on the peripheral side of the mounting box 1. The matching rod 16 is columnar, and the matching rod 16 is slidably arranged on the outside of the mounting box 1. Two groups of opening and closing components are arranged in an array on the heat preservation plate 12, and each group of opening and closing components is parallel to the matching rod 16. That is, the matching rods 16 are slidably arranged on both sides of the mounting box 1, and each matching rod 16 is fixedly connected to the handheld portion 44 of a group of opening and closing components. That is, when the matching rod 16 slides, the opening and closing components connected to the matching rod 16 open or close simultaneously.

[0039] Combined with Figure 4 and Figure 5, specifically, a guide plate 42 is fixedly arranged on the circumferential side of the mounting ring 31, a guide groove 41 is arranged on the guide plate 42, the guide plate 42 is arranged in one-to-one correspondence with the number of blades 33, each rotating shaft 34 is fixedly arranged at one end of the guide plate 42, a guide post 43 is fixedly arranged on the circumferential side of the driving ring 15, the guide post 43 is slidably arranged in the guide groove 41, and the guide post 43 is arranged in one-to-one correspondence with the guide groove 41. The guide groove 41 only needs to satisfy the sliding of the rotating shaft 34. The guide plate 42 can be integrally formed with the mounting ring 31, or can be fixedly connected by bonding or welding, and the embodiments of the present application do not make specific limitations. The arrangement of the guide plate 42 in one-to-one correspondence with the number of blades 33 can enable each blade 33 to rotate. One end of the rotating shaft 34 is rotatably connected to the fixing plate 32, and the other end sequentially passes through the blade 33, the mounting ring 31 and the driving ring 15 and is then fixedly arranged at one end of the guide plate 42, that is, the driving ring 15, the guide plate 42 and the rotating shaft 34 form a connecting rod structure.

[0040] It should be noted that the material of the heat preservation board 12 can be materials with low thermal conductivity, high temperature resistance, thermal shock resistance and water repellency such as glass wool or aerogel felt, so as to avoid structural deformation caused by temperature fluctuations or condensed water. Specifically, the thermal conductivity ≤ 0.04 W / (m·K). The fan blade 33 and the mounting ring 31 are made of the same glass wool composite material as the heat preservation board 12, or high-density polyethylene, as long as the expansion coefficient is close to that of glass wool, so as to reduce the gap between the mounting ring 31 and the heat preservation board 12 caused by temperature difference. The connection parts of the rotating shaft 34 with the mounting ring 31 and the fixing plate 32 are provided with fluororubber O-rings, and the temperature resistance is -20°C to 200°C, so as to seal the connection parts of the rotating shaft 34 with the mounting ring 31 and the fixing plate 32. A silica gel sealing strip is pasted on the back of the fan blade 33. Among them, the thickness of the silica gel sealing strip is 1 mm, the Shore hardness is 50 ± 5, and the compression amount reaches 30% when closed. A double-lip seal ring is installed at the end of the rotating shaft 34, and the lip is in interference fit with the shaft, and the interference amount is 0.2 mm to prevent dust and moisture from invading. The contact surface between the fan blade 33 and the heat preservation board 12 is coated with room temperature vulcanized silicone rubber, which forms an elastic sealing layer after curing. The thickness of the room temperature vulcanized silicone rubber is 0.5 mm to adapt to the slight deformation of the fan blade 33. A bellows seal is arranged between the driving ring 15 and the mating groove 14. The bellows material is 304 stainless steel, and the thickness of the bellows is 0.2 mm. It expands and contracts as the driving ring 15 rotates and always fits the groove wall to block external air. The connection part between the mating rod 16 and the mounting box 1 can adopt magnetic fluid sealing. The magnetic liquid forms a liquid sealing ring under the action of the magnetic field, so that when the mating rod 16 slides, the connection part between the mating rod 16 and the mounting box 1 is sealed.

[0041] In specific use, when the temperature is relatively high in summer, the solar cell 11 is in a high-temperature state for a long time, which will cause the battery efficiency to decrease, thereby reducing the heat collection efficiency. Therefore, when the temperature is too high in summer, the cooperating rod 16 is pulled to make the cooperating rod 16 slide, and then the handheld part 44 is driven to move. The handheld part 44 drives the driving ring 15 to rotate, so that the driving ring 15 drives the guiding column 43 to rotate. Since the guiding column 43 is slidably arranged in the guiding groove 41, when the guiding column 43 undergoes displacement, it will drive the guiding column 43 to slide in the chute, thereby driving the guiding plate 42 to tilt. When the guiding plate 42 tilts, it drives the rotating shaft 34 to rotate, thereby opening the blades 33 to increase heat dissipation, and further improving the heat collection efficiency. When the temperature is low, the reverse operation is performed, which is not elaborated in the embodiments of the present application.

[0042] Combined with Figure 6 and Figure 7 , it should be noted that the cooperating rods 16 on both sides of the installation box 1 are connected through a connecting piece. The connecting piece includes a first fixing rod 51 and a second fixing rod 52. One end of the first fixing rod 51 is fixedly connected to one of the cooperating rods 16, and the other end is rotatably connected to the second fixing rod 52 through a hinge. A first groove 54 is provided at one end of the second fixing rod 52 away from the first connecting rod, and a first convex block 53 is provided at a section of the other cooperating rod 16 away from the heat preservation plate 12. The first groove 54 and the first convex block 53 are mutually engaged, that is, the fixing of the second fixing rod 52 to the other cooperating rod 16 is realized. A magnet 55 is provided at one end where the first groove 54 and the first convex block 53 are in contact, and the fixing of the second fixing rod 52 to the other cooperating rod 16 is realized by using the suction force of the magnet 55. The second fixing rod 52 is a telescopic rod.

[0043] In use, when it is necessary to open a set of opening and closing components, the second fixing rod 52 is disconnected from the cooperating rod 16, that is, the second fixing rod 52 rotates upward to fit the upper surface of the first fixing rod 51. When both sets of opening and closing components need to be opened, the second fixing rod 52 is rotated downward. Under the action of the magnet 55, the magnets 55 of the second fixing rod 52 and the cooperating rod 16 attract each other, thereby realizing fixation. That is, only by pulling one of the cooperating rods 16 can the opening and closing of multiple opening and closing components be realized. Both the first fixing rod 51 and the second fixing rod 52 are telescopic rods, which can meet the displacement of the driving rod during the movement process.

[0044] Looking back Figure 1 , in a specific embodiment of the application, a glass cover plate 17 is provided in the installation box 1. The glass cover plate 17 is located above the solar cell 11. The glass cover plate 17 is a photovoltaic glass, and an antireflection layer is coated on the surface of the photovoltaic glass.

[0045] In the embodiment of the present application, the anti-reflection layer is provided on the photovoltaic glass to reduce the reflectivity of the glass surface through the optical interference effect, so that more sunlight can penetrate the glass and reach the solar cell 11, thereby improving the photoelectric conversion efficiency. Among them, the anti-reflection layer material can be nano-SiO2, which has antioxidant and corrosion-resistant properties, can maintain stable optical properties in harsh environments, and extend the service life of the photovoltaic module.

[0046] Among them, the action of the matching rod driving the opening and closing component to open or close can be manually operated by the staff or controlled by the PLC control panel. The specific control method is specifically set according to the usage situation, and the embodiment of the present application does not make specific limitations.

[0047] Manual operation by the staff: When a set of opening and closing components needs to be opened, the staff pulls one of the driving rods, and the driving rod drives the hand-held part 44 of the set to move. The hand-held part 44 drives the mounting ring 31 to rotate. At this time, the guide post 43 rotates synchronously, and the guide post 43 slides in the guide groove 41, and at the same time drives the guide plate 42 to move in the direction of the rotation of the mounting ring 31. Furthermore, the guide plate 42 drives the rotating shaft 34 to rotate, so that the rotating shaft 34 drives the blade 33 to rotate, and the heat dissipation port 13 is opened; when two sets of opening and closing components need to be opened, the staff rotates the second fixing rod 52 to the upper side of the driving rod, so that the first convex block 53 is embedded in the first groove 54. Under the action of the magnet 55, the first fixing rod 51 is fixed to the driving rod, so that moving one driving rod can open both sets of opening and closing components.

[0048] When controlled by the PLC, a hydraulic rod is installed on the driving rod, and the hydraulic rod is electrically connected to the PLC. When a set of opening and closing components needs to be opened, the PLC panel controls the hydraulic rod to extend, so that the driving rod moves, and then drives the hand-held part 44 of the set to move. The subsequent rotation of the opening and closing parts is the same as the manual operation of the staff, so it will not be elaborated here; when two sets of opening and closing components need to be opened, the PLC panel controls the rotating shaft 34 at the connection of the first fixing rod 51 and the second fixing rod 52 to rotate, so that the second fixing rod 52 moves closer to the driving rod, so that the first convex block 53 is embedded in the first groove 54. Under the action of the magnet 55, the first fixing rod 51 is fixed to the driving rod, so that moving one driving rod can open both sets of opening and closing components.

[0049] The implementation principle of the embodiments of this application is as follows: The solar cell 11 collects solar energy and converts it into electrical energy. That is, the solar cell 11 absorbs ultraviolet light and visible light, while the long-wave infrared light cannot be absorbed and turns into heat. Due to the setting of the TPT backplane 23 and the EVA film 24, the heat generated by the solar cell and the heat generated by the non-absorbed long-wave infrared light can be absorbed, thereby heating the refrigerant in the flat micro heat pipe 22. Then, after being heated, the refrigerant rises in temperature and evaporates. Under the action of gravity, the gas rises along the flat micro heat pipe 22 to the elbow, where it exchanges heat with the cold water in the heat collecting pipe 21, cools down and generates condensed water. The condensed water sinks along the flat micro heat pipe 22 to the bottom of the flat micro heat pipe 22 under the action of gravity and is reheated by solar energy and heat energy again. This cycle repeats to collect heat. When the temperature is too high in summer, pull the mating rod 16, causing the mating rod 16 to slide, and then drive the handheld part 44 to move. The handheld part 44 drives the driving ring 15 to rotate, so that the driving ring 15 drives the guide post 43 to rotate. Since the guide post 43 is slidably arranged in the guide groove 41, when the guide post 43 undergoes displacement, it will drive the guide post 43 to slide in the chute, thereby driving the guide plate 42 to tilt. When the guide plate 42 tilts, it drives the rotating shaft 34 to rotate, thus opening the blade 33 to increase heat dissipation, and further improving the heat collection efficiency.

[0050] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic-thermal integrated component based on a flat micro heat pipe, comprising an installation box (1), characterized in that, It further includes: A solar cell (11), which is fixedly arranged in the installation box (1); A heat collection member, which is arranged below the solar cell (11), and is used for collecting the energy not absorbed by the solar cell (11) and heating the working medium; A heat preservation board (12), which is arranged in the installation box (1), and the heat preservation board (12) is located below the heat collection member; Wherein, a heat dissipation port (13) is arranged on the heat preservation board (12), and an opening and closing component is rotatably arranged in the heat dissipation port (13), and the opening and closing component is used for opening and closing the heat dissipation port (13) so as to increase or decrease the heat dissipation of the solar cell (11).

2. The photovoltaic-thermal integrated component based on a flat micro heat pipe according to claim 1, wherein A matching groove (14) is arranged on the periphery of the heat dissipation port (13), and the matching groove (14) is communicated with the heat dissipation port (13). The opening and closing component includes: A mounting member (3), which is rotatably arranged on the periphery of the heat dissipation port (13); A driving ring (15), which is rotatably arranged in the matching groove (14) and drives the mounting member (3) to rotate; A matching rod (16), which is arranged on one side of the installation box (1), and the matching rod (16) is hinged to the driving ring (15).

3. The photovoltaic-thermal integrated component based on a flat micro heat pipe according to claim 2, wherein: The mounting member (3) includes: A mounting ring (31), which is fixedly arranged in the heat dissipation port (13), and the mounting ring (31) is rotatably connected with the driving ring (15); A fixing plate (32), which is fixedly connected with the mounting ring (31), the fixing plate (32) is coaxially arranged with the mounting ring (31), and there is a gap (35) between the fixing plate (32) and the mounting ring (31); A plurality of blades (33), which are rotatably arranged in the gap (35) through a rotating shaft (34), the blades (33) are evenly distributed along the direction of the fixing plate (32) and are annularly arranged around the direction of the fixing plate (32); the plurality of blades (33) form a closed flow channel through the rotating shaft (34).

4. The photovoltaic-thermal integrated component based on a flat micro heat pipe according to claim 3, characterized in that, A guiding plate (42) is fixedly arranged on the periphery of the mounting ring (31), a guiding groove (41) is arranged on the guiding plate (42), the guiding plate (42) is arranged in one-to-one correspondence with the number of the blades (33), each rotating shaft (34) is fixedly arranged at one end of the guiding plate (42), a guiding column (43) is fixedly arranged on the periphery of the driving ring (15), and one end of the guiding column (43) away from the driving ring (15) is slidably arranged in the guiding groove (41), wherein the guiding column (43) is arranged in one-to-one correspondence with the guiding groove (41).

5. The photovoltaic-thermal integrated component based on a flat micro heat pipe according to claim 2, wherein Two groups of the opening and closing components are arranged in an array on the heat preservation board (12), and each group of the opening and closing components is parallel to the matching rod (16).

6. The photovoltaic-thermal integrated component based on a flat micro heat pipe according to claim 5, wherein: The heat collection member includes: A heat collection pipe (21), which penetrates through the installation box (1), and the heat collection pipe (21) is parallel to the matching rod (16); Flat micro heat pipe (22), an elbow is provided at the upper end of the flat micro heat pipe (22) close to the heat collecting pipe (21), and the elbows are uniformly and staggeredly arranged on the periphery of the heat collecting pipe (21) through heat conductive silica gel; TPT backplane (23), the flat micro heat pipe (22) is arranged on the back of the TPT backplane (23) through an EVA film (24).

7. The photovoltaic-thermal integrated component based on a flat micro heat pipe according to claim 1, characterized in that, A glass cover plate (17) is arranged in the installation box (1), the glass cover plate (17) is located above the solar cell (11), the glass cover plate (17) is a photovoltaic glass, and an anti-reflection layer is coated on the surface of the photovoltaic glass.

8. The photovoltaic-thermal integrated component based on a flat micro heat pipe according to claim 6, characterized in that: The diameter of the heat collecting pipe (21) is 20 mm - 25 mm.

Images