Photovoltaic shutter

Abstract

The invention provides a photovoltaic shutter, relates to the technical field of photovoltaics, and aims to solve the technical problem of poor quality reliability of the photovoltaic shutter. The photovoltaic shutter comprises two opposite frame structures and a plurality of photovoltaic elements, each frame structure comprises a plurality of connecting pieces, a first supporting piece and a second supporting piece, the first supporting piece and the second supporting piece are opposite, and the two ends of each connecting piece are connected to the corresponding first supporting piece and the corresponding second supporting piece respectively; the two ends of each photovoltaic element are electrically connected with the corresponding connecting pieces of the two frame structures respectively. In the same frame structure, at least part of the connecting pieces are electrically connected; the inclination angle of the photovoltaic element can be adjusted by adjusting the relative positions of the first supporting piece and the second supporting piece in the same frame structure. According to the photovoltaic shutter, the problems of collision and line overlapping between photovoltaic elements can be avoided, and the reliability is higher.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaics, and in particular to a photovoltaic blind. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Photovoltaic blinds are an innovative product that combines photovoltaic technology with building shading function. It can not only provide shading effect for buildings, but also absorb sunlight and convert it into electrical energy, thus providing part of the energy needs of buildings.

[0004] In the related art, the photovoltaic laminate is punched with holes, and the pulling wire is passed through each hole to form a physical connection of the photovoltaic laminate. However, the pulling wire in this setting will block part of the photovoltaic laminate, affecting power generation and causing hot spot problems; the pulling wire series connection method may also cause mutual collision and contact between photovoltaic laminates, damaging the battery cells. At the same time, the conductive lines between photovoltaic laminates are two-dimensional lines. When the conductive lines need to be connected in series or in series / parallel, the lines need to overlap in some positions. During long-term use, as the insulating material ages, it will cause the risk of failure and short circuit. Summary of the invention

[0005] The purpose of the present invention is to provide a photovoltaic blind to solve the technical problem of poor reliability of the photovoltaic blind.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a photovoltaic blind, comprising two opposite frame structures and a plurality of photovoltaic elements, wherein the frame structure comprises a plurality of connectors, and opposite first and second support members, wherein two ends of the connectors are respectively connected to the first and second support members;

[0008] Two ends of each photovoltaic element are electrically connected to corresponding connecting members of the two frame structures respectively;

[0009] In the same frame structure, at least a portion of the connecting members are electrically connected;

[0010] By adjusting the relative position of the first support member and the second support member in the same frame structure, the inclination angle of the photovoltaic element can be adjusted.

[0011] According to at least one embodiment of the present invention, the photovoltaic element comprises at least one photovoltaic cell;

[0012] When there are multiple photovoltaic cells, the photovoltaic element is a photovoltaic cell string electrically connected to the multiple photovoltaic cells.

[0013] According to at least one embodiment of the present invention, the window frame further includes a window frame and two groups of first stoppers arranged on the window frame, each group of the first stoppers includes two first stoppers, and the two first stoppers in the same group are respectively close to the bottom wall and the top wall of the window frame;

[0014] Each of the first stoppers has a first elongated slot, and both ends of each of the first support members respectively pass through two of the first stoppers of the same group and are movably disposed in the first elongated slot along the vertical direction and the first direction;

[0015] The first direction refers to: a distribution direction from the first supporting member to the second supporting member in the frame structure.

[0016] According to at least one embodiment of the present invention, the window frame further comprises two linear motion mechanisms disposed on the window frame, each of the linear motion mechanisms being drivingly connected to a corresponding first support member;

[0017] The linear motion mechanism moves along the vertical direction.

[0018] According to at least one embodiment of the present invention, the window frame further comprises two groups of second stoppers, each group of the second stoppers comprises two second stoppers, and the two second stoppers in the same group are respectively close to the bottom wall and the top wall of the window frame;

[0019] Each of the second position-limiting members has a second elongated slot, and two ends of each of the second support members respectively pass through two of the second position-limiting members of the same group and are movably disposed in the second elongated slot along the first direction.

[0020] According to at least one embodiment of the present invention, each of the linear motion mechanisms includes at least one shift fork, and each of the first support members includes at least one shift rod;

[0021] Each shift rod is arranged in a clamping groove of the corresponding shift fork.

[0022] According to at least one embodiment of the present invention, each of the second supporting members is fixedly disposed in the window frame.

[0023] According to at least one embodiment of the present invention, the connecting member is a flexible structural member; or,

[0024] The connecting member is a rigid structural member, one end of which is hinged to the first supporting member, and the other end of which is hinged to the second supporting member.

[0025] According to at least one embodiment of the present invention, the connecting member is a metal wire or a structural member coated with a conductive film; and / or,

[0026] At least a portion of the connecting members are electrically connected via wires disposed on the first supporting member or the second supporting member; or,

[0027] At least a portion of the connecting members is electrically connected via a conductive film coated on the first supporting member or the second supporting member.

[0028] According to at least one embodiment of the present invention, the window frame further comprises a first glass and a second glass, wherein the first glass and the second glass are both located on an indoor side of the photovoltaic element;

[0029] The first glass, the second glass and a part of the window frame form a vacuum soundproof cavity; and / or,

[0030] It also includes a second glass and a third glass arranged in the window frame, wherein the second glass is located on the indoor side of the photovoltaic element, and the third glass is located on the outdoor side of the photovoltaic element;

[0031] The third glass, the second glass and a part of the window frame form a photovoltaic cavity for accommodating the frame structure and the photovoltaic element, and the photovoltaic cavity is filled with an inert gas.

[0032] Among the one or more technical solutions provided in the exemplary embodiments of the present invention, at least one of the following beneficial effects can be achieved.

[0033] The photovoltaic shutter of the exemplary embodiment of the present invention is provided with a plurality of photovoltaic elements arranged in sequence between two frame structures. Specifically, the frame structure includes a first support member and a second support member, and a plurality of connectors are provided between the two to form a ladder-type frame structure. Through the electrical connection between the connectors, the photovoltaic elements can be electrically connected, and according to the optimization of different power generation performances, all the connectors on each frame structure can be electrically connected, or a part of the connectors on each frame structure can be electrically connected and a part of the connectors can be electrically isolated, and electrical connections such as parallel connection, series connection first and then parallel connection, or parallel connection first and then series connection can be formed between the photovoltaic elements, thereby better adapting to electrical equipment.

[0034] In the frame structure, by adjusting the relative position of the first support member and the second support member, that is, changing the inclination angle of the connecting member, the connecting member drives the inclination angle of the photovoltaic element to change, and on the basis of supporting the photovoltaic element, both lighting and power generation can be achieved. Compared with the method of punching holes and inserting pulling wires on the photovoltaic laminate in the prior art, the frame structure is located at both ends of the photovoltaic element and does not block the photovoltaic element, which can improve the power generation efficiency. At the same time, compared with the collision damage of the photovoltaic element caused by the pulling wire, the supporting effect of the frame structure keeps each photovoltaic element in a relatively fixed position, which can avoid the collision problem between each photovoltaic element.

[0035] Furthermore, since the photovoltaic elements are electrically connected through the connecting parts of the frame structure to form a three-dimensional network circuit structure, the problem of line overlap in the two-dimensional circuit structure when series or series / parallel connection is required is overcome. The overlapping lines are usually electrically isolated by insulating glue. As the material performance ages, the insulation fails and causes a short circuit. Therefore, the three-dimensional circuit structure avoids the problem of line overlap, and further avoids the problem of insulation failure and short circuit.

[0036] Based on this, the series-parallel structure of the photovoltaic elements in the photovoltaic blinds of the exemplary embodiment of the present invention can more flexibly match the current and voltage, thereby adapting to electrical equipment, and at the same time has higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings illustrate exemplary embodiments of the present invention and together with the description serve to explain the principles of the present invention, and these drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification;

[0038] Figure 1 is an axonometric structural schematic diagram of a photovoltaic blind according to an embodiment of the present invention;

[0039] Figure 2 is a schematic structural diagram of a photovoltaic element according to an embodiment of the present invention;

[0040] Figure 3 is a schematic side view of the structure of a photovoltaic blind according to an embodiment of the present invention;

[0041] Figure 4 is a schematic diagram of the side view structure of a photovoltaic blind (with a soundproof cavity) according to an embodiment of the present invention;

[0042] Figure 5 is a schematic diagram of a top view of a frame structure and a limiting portion according to an embodiment of the present invention;

[0043] Figure 6 is an axonometric structural schematic diagram of a photovoltaic blind (in parallel) according to an embodiment of the present invention;

[0044] Figure 7 is a circuit diagram of a photovoltaic blind (in parallel) according to an embodiment of the present invention, wherein (a) is a left frame structure, (b) is a parallel circuit, and (c) is a right frame structure;

[0045] Figure 8 is a schematic diagram of the axonometric structure of a photovoltaic blind (first in parallel and then in series) according to an embodiment of the present invention;

[0046] Fig. 9 1 is a circuit diagram of a photovoltaic blind (parallel first then series connection) according to an embodiment of the present invention, wherein (a) is a left frame structure, (b) is a parallel first then series connection circuit, and (c) is a right frame structure;

[0047] Fig.10 is a schematic diagram of the axonometric structure of a photovoltaic blind (first in series and then in parallel) according to an embodiment of the present invention;

[0048] Fig.11 Schematic diagram of a circuit of a photovoltaic blind (first series then parallel) according to an embodiment of the present invention, wherein (a) is a left frame structure, (b) is a first series then parallel circuit, and (c) is a right frame structure.

[0049] Reference numerals: 11, first support member; 111, lever; 12, second support member; 13, push-pull button; 131, flexible adhesive film; 14, fork; 15, connecting member;

[0050] 20. Photovoltaic element; 21. Photovoltaic cell; 22. Welding ribbon;

[0051] 30. Window frame; 31. First glass; 32. Second glass; 33. Third glass; 34. Top wall; 35. Bottom wall; 361. First stopper; 361a. First elongated groove; 362. Second stopper; 362a. Second elongated groove. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] In the photovoltaic blinds in the related art, photovoltaic laminates are usually used as blinds, and the angle of the blinds is adjusted by punching holes in the photovoltaic laminates and inserting lifting wires. Compared with punching holes in photovoltaic cells, punching holes in photovoltaic laminates can reduce the risk of photovoltaic cells breaking; but it is heavy and costly. Punching holes in photovoltaic cells to connect wires and lifting wires can easily cause photovoltaic cells to break when they are pulled and stacked. At the same time, when stacking blinds with lifting wires, it is difficult to avoid overlapping of the connecting wires because the connecting wires are usually a two-dimensional circuit structure, which can easily cause insulation wear and short circuit and failure during use.

[0054] In response to the above-mentioned problems, the photovoltaic shutters provided by the exemplary embodiment of the present invention arrange the photovoltaic elements between two frame structures, so that the frame structure can support and electrically connect the various photovoltaic elements, avoiding the problem of damage easily caused by drilling holes and threading wires on the photovoltaic elements; at the same time, the circuit structure on the frame structure is a three-dimensional structure, which will not cause the problem of overlapping of connecting wires and easy aging and short circuit when the two-dimensional structure is connected in series or series / parallel; the frame structure will not block the light, thereby improving the power generation efficiency.

[0055] Figure 1 is an axonometric structural schematic diagram of a photovoltaic blind according to an embodiment of the present invention; Figure 6 Schematic diagram of the axonometric structure of photovoltaic blinds (in parallel) according to an embodiment of the present invention. Figure 1 and Figure 6 As shown, the photovoltaic shutters provided by the exemplary embodiment of the present invention include two relative frame structures and a plurality of photovoltaic elements 20, the frame structure includes a plurality of connectors 15, and a first support member 11 and a second support member 12 relative to each other, wherein the two ends of the connector 15 are respectively connected to the first support member 11 and the second support member 12; the two ends of each photovoltaic element 20 are respectively electrically connected to the corresponding connectors 15 of the two frame structures; in the same frame structure, at least a part of the connectors 15 are electrically connected; by adjusting the relative position of the first support member 11 and the second support member 12 in the same frame structure, the inclination angle of the photovoltaic element 20 can be adjusted.

[0056] In actual applications, the photovoltaic element 20 and the frame structure of the photovoltaic blinds are arranged in the window frame 30, wherein the two frame structures are respectively arranged at the two ends of the photovoltaic element 20, for supporting and electrically connecting the photovoltaic element 20, and can adjust the relative position between the first support member 11 and the corresponding second support member 12, and can change the inclination angle of the photovoltaic element 20, thereby adjusting the light entering the room and having the ability to generate electricity.

[0057] Specifically, a first support member 11 and a second support member 12 of a frame structure are arranged opposite to each other, and a plurality of connectors 15 are connected therebetween, and the plurality of connectors 15 are arranged in sequence along the vertical direction and correspond one to one with the photovoltaic elements 20, that is, one connector 15 in the two frame structures corresponds to the two ends of one photovoltaic element 20. The ends of the photovoltaic element 20 can be electrically connected to the corresponding connectors 15, and different photovoltaic elements 20 can form parallel or series / parallel circuits through the electrically connected plurality of connectors 15.

[0058] Each photovoltaic element 20 can be supported on two corresponding connectors 15 on different frame structures by physically connecting with the corresponding connectors 15. The first support members 11 and the second support members 12 in the two frame structures are respectively located near the periphery of the four corners of the photovoltaic element 20. Therefore, when the relative position of the first support member 11 and the second support member 12 is adjusted, the inclination angle of the connector 15 changes, which can drive the photovoltaic element 20 to change its inclination angle, thereby realizing the shielding of the blinds from the outdoors.

[0059] Compared with the solution of using a pull wire to pass through the photovoltaic element 20 in the prior art, the exemplary embodiment of the present invention uses a frame structure to support and adjust the tilt angle of the photovoltaic element 20. Since the relative positions of the photovoltaic elements 20 are fixed, the risk of collision and damage caused by the stacking of the photovoltaic elements 20 can be avoided, and the risk of hot spots caused by the pull wire blocking the photovoltaic elements 20 can also be avoided. At the same time, the use of a frame structure for electrical connection between the connectors 15 can make the circuit three-dimensional, avoiding the inevitable line overlap of the two-dimensional circuit in the prior art when it is connected in series or series / parallel, and the reliability is higher.

[0060] In addition, since there is no need to drill holes in the photovoltaic element 20, the photovoltaic cell sheet 21 can be used directly without considering the risk of the photovoltaic cell sheet 21 being broken due to drilling. Therefore, the photovoltaic element 20 used as a louver is lighter and has a lower cost than a photovoltaic laminate or a photovoltaic module by using the photovoltaic cell sheet 21.

[0061] Figure 2 Schematic diagram of the structure of a photovoltaic element according to an embodiment of the present invention. Figure 2 As shown, the photovoltaic element 20 includes at least one photovoltaic cell 21 ; when there are multiple photovoltaic cells 21 , the photovoltaic element 20 is a photovoltaic cell string in which the multiple photovoltaic cells 21 are electrically connected.

[0062] In practical applications, a louver, that is, a photovoltaic element 20, can be a separate photovoltaic cell 21, and the photovoltaic element 20 is formed by cutting a large-area cell into long strips of cells of suitable size. The welding strips 22 extend from both ends of the photovoltaic cell 21 to form electrical connections with the corresponding connectors 15 of the two frame structures. It can be understood that the welding strip 22 extending from one end of the photovoltaic cell 21 is the positive electrode, and the welding strip 22 extending from the other end is the negative electrode.

[0063] Exemplarily, the number of welding ribbons 22 on the photovoltaic cell 21 is determined according to actual needs. For example, there can be four welding ribbons 22, six welding ribbons 22 or more. When there are six welding ribbons 22 on the photovoltaic cell 21, three welding ribbons 22 are positive electrodes led out from one end of the photovoltaic cell 21, and the other three welding ribbons 22 are negative electrodes led out from the other end of the photovoltaic cell 21.

[0064] Continue as Figure 2 As shown, the photovoltaic element 20 is a photovoltaic cell string formed by a plurality of photovoltaic cells 21 electrically connected. The photovoltaic cell string is formed by three photovoltaic cells 21 electrically connected as an example. The front and back sides of the middle photovoltaic cell 21 are provided with three welding strips 22 respectively, extending from both ends thereof. The extended portion of the welding strip 22 on the front side is electrically connected to the back side of the photovoltaic cell 21 on one side, and the extended portion of the welding strip 22 on the back side is electrically connected to the front side of the photovoltaic cell 21 on the other side. The three welding strips 22 on the photovoltaic cells 21 on both sides that are not shared with the middle photovoltaic cell 21 also extend from their ends respectively to form electrical connections with the corresponding connectors 15.

[0065] It can be understood that the photovoltaic element 20 can also be a photovoltaic laminate or a photovoltaic laminate string formed by multiple photovoltaic laminates; when the photovoltaic element 20 is a photovoltaic laminate string, similar to the connection between the above-mentioned photovoltaic cell strings, the photovoltaic cells 21 in the photovoltaic laminate are also electrically connected through the welding strip 22, thereby forming a photovoltaic laminate string as a slat of the blinds.

[0066] Since the circuit of the exemplary embodiment of the present invention can be arranged on a frame structure to form a three-dimensional network circuit structure, multiple photovoltaic elements 20 can be connected in series and parallel, thereby optimizing power generation performance and better adapting to electrical equipment.

[0067] For example, the photovoltaic cell strings may form a full parallel structure, a parallel-first then series structure, a series-first then parallel structure, etc.

[0068] Figure 6 is an axonometric structural schematic diagram of a photovoltaic blind (in parallel) according to an embodiment of the present invention; Figure 7Schematic diagram of a photovoltaic blind (in parallel) according to an embodiment of the present invention, wherein (a) is a left frame structure, (b) is a parallel circuit, and (c) is a right frame structure. Figure 6 and Figure 7 As shown, the first support member 11 and the second support member 12 of the frame structure can be rigid insulating rods, which can be electrically insulating polyester fibers, resin fibers, or metal materials with deposited insulating layers, etc. The connector 15 can be a conductive metal strip / metal wire, or an insulating rod or insulating wire with a conductive metal film on the surface, and the conductive metal film, metal strip / metal wire can be made of copper, silver, or other metal alloys with strong conductivity, etc.

[0069] The connectors 15 may be electrically connected to each other by metal wires disposed on the first support member 11 and / or the second support member 12 , or by coating corresponding portions of the first support member 11 and / or the second support member 12 with a conductive metal film.

[0070] In an exemplary embodiment of the present invention, in the same frame structure, the first support member 11 and the second support member 12 are electrically connected at the portion between the top connector 15 and the bottom connector 15, thereby forming a circuit of a full parallel structure, wherein the positive poles of each photovoltaic cell string are located on the left side and the negative poles are located on the right side. Exemplarily, the current can be led out through the circuit input terminal and the circuit output terminal on the two frame structures.

[0071] Figure 8 is a schematic diagram of the axonometric structure of a photovoltaic blind (first in parallel and then in series) according to an embodiment of the present invention; Fig. 9 Schematic diagram of a photovoltaic blind (parallel first then series) according to an embodiment of the present invention, wherein (a) is a left frame structure, (b) is a parallel first then series circuit, and (c) is a right frame structure. Figure 8 and Fig. 9 As shown, from top to bottom, three photovoltaic cell strings form a group, and the three photovoltaic cell strings in the same group form a parallel circuit structure. The photovoltaic cell strings of each group form a series circuit structure. The positive and negative poles of each photovoltaic cell string are alternated in the left and right directions. The left side of the top photovoltaic cell string is the positive pole, and the right side of the bottom photovoltaic cell string is the negative pole, and then the current is led out through the circuit input terminal and the circuit output terminal on the two frame structures.

[0072] Fig.10 is a schematic diagram of the axonometric structure of a photovoltaic blind (first in series and then in parallel) according to an embodiment of the present invention; Fig.11 Schematic diagram of a photovoltaic blind (series first then parallel) according to an embodiment of the present invention, wherein (a) is a left frame structure, (b) is a series first then parallel circuit, and (c) is a right frame structure. Fig.10 and Fig.11 As shown, from top to bottom, three photovoltaic cell strings form a group, and the three photovoltaic cell strings in the same group form a series circuit structure. In the same group of photovoltaic cell strings, the negative pole of the first photovoltaic cell string is connected to the positive pole of the middle photovoltaic cell string, and the negative pole of the middle photovoltaic cell string is connected to the positive pole of the third photovoltaic cell string. The series structure of each group of photovoltaic cell strings is the same, and the positive pole of each group of photovoltaic cell strings is connected to the frame structure on the left, and the negative pole of each group of photovoltaic cell strings is connected to the frame structure on the right, thereby leading the current through the circuit input terminal and the circuit output terminal.

[0073] It should be noted that in order to obtain electrical isolation between the connectors 15 in the frame structure, the conductive wires or conductive films can be disconnected at the following positions according to the actual circuit diagram: part of the connector 15, part of the first support member 11, and part of the second support member 12.

[0074] Figure 3 is a schematic side view of the structure of a photovoltaic blind according to an embodiment of the present invention; Figure 5 2 is a schematic diagram of a top view of a frame structure and a position limiting portion according to an embodiment of the present invention. Figure 1 , Figure 3 and Figure 5 As shown, the photovoltaic shutters of an exemplary embodiment of the present invention also include a window frame 30 and two groups of first limit members 361 arranged on the window frame 30, each group of first limit members 361 includes two first limit members 361, and the two first limit members 361 of the same group are respectively close to the bottom wall 35 and the top wall 34 of the window frame 30; each first limit member 361 has a first elongated groove 361a, and the two ends of each first support member 11 respectively pass through the two first limit members 361 of the same group, and are movably arranged in the first elongated groove 361a along the vertical direction and the first direction; the first direction refers to: the distribution direction from the first support member 11 to the second support member 12 in the frame structure.

[0075] In actual applications, two groups of first limiting members 361 are arranged on the side of the window frame 30 close to the interior of the room. Each group of first limiting members 361 is used to limit the corresponding first support member 11. The extension direction of the first elongated groove 361a is the first direction, which allows the first support member 11 to move in the vertical direction while being constrained by the connecting member 15 and the second supporting member 12. It can move in the direction of the second supporting member 12, thereby changing the inclination angle of the connecting member 15.

[0076] Exemplarily, both ends of the first support member 11 also have limiting protrusions whose size is larger than that of the first elongated groove 361 a, so that the first support member 11 will not fall off from the first elongated groove 361 a when moving in the vertical direction.

[0077] In some embodiments, the photovoltaic shutter further includes two linear motion mechanisms disposed on the window frame 30 , each of which is transmission-connected to a corresponding first support member 11 ; the linear motion mechanisms move in a vertical direction.

[0078] like Figure 1 and Figure 3 As shown, the linear motion mechanism may include a push-pull button 13 movably arranged on the window frame 30. The push-pull button 13 can drive the corresponding first support member 11 to move up and down through the fork 14. At the same time, the push-pull button 13 and the window frame 30 have a rough surface on the fitting surface, which can maintain a fixed position after being pushed and pulled into place; the rough surface can be a convex strip, and the window frame 30 is provided with a plurality of wire grooves, and the convex strips can be clamped in the wire grooves to maintain a fixed position.

[0079] In some embodiments, Figure 3 and Figure 6 As shown, the number of the shift forks 14 can be multiple, which is the same as the number of the connecting members 15 in the frame structure. A plurality of shift rods 111 are provided on each first support member 11, and each shift rod 111 is provided in the slot of the corresponding shift fork 14. The shift rod 111 extends on the first support member 11 in a direction away from the other first support member 11, and extends into the slot of the corresponding shift fork 14. This implementation of multiple shift forks 14 and shift rods 111 can enable each louver to uniformly obtain the push-pull force of the push-pull button 13. In particular, when the connecting member 15 of the frame structure is a flexible bus bar or metal wire, the transmission method of the multiple shift forks 14 and shift rods 111 can make the inclination angles of each louver tend to be consistent.

[0080] In other embodiments, the linear motion mechanism may include a hydraulic cylinder, a cylinder, a servo electric cylinder, etc., and its telescopic end may be connected to the fork 14, thereby driving the first support member 11 to move in the vertical direction. The servo electric cylinder may be connected to the circuit of the photovoltaic element, so that the electricity generated by the photovoltaic element drives the telescopic end of the servo electric cylinder to extend and retract, thereby utilizing the electricity generated by the photovoltaic blind itself without the need for an external power supply, making the structure simpler. At the same time, through the automated action of the servo electric cylinder, remote control of the photovoltaic blind can also be achieved.

[0081] For example, the connecting member 15 may be a rigid structural member in addition to being a flexible structural member, and its two ends are respectively hinged to the first supporting member 11 and the second supporting member 12 so as to change its own inclination angle.

[0082] In some embodiments, the second support member 12 may be fixedly disposed in the window frame 30. Considering that the engagement of the fork 14 with the lever 111 will limit the movement of the first support member 11 in the first direction, the second support member 12 may also be configured to be movable along the first direction.

[0083] like Figure 5 As shown, the photovoltaic shutters also include two groups of second limit members 362 arranged on the window frame 30, each group of second limit members 362 includes two second limit members 362, and the two second limit members 362 in the same group are respectively close to the bottom wall 35 and the top wall 34 of the window frame 30; each second limit member 362 has a second elongated groove 362a, and the two ends of each second support member 12 respectively pass through the two second limit members 362 in the same group, and are movably arranged in the second elongated groove 362a along the first direction.

[0084] In actual applications, the matching relationship between the second support member 12 and the second limiting member 362 is similar to the matching relationship between the first support member 11 and the first limiting member 361. The difference is that the second support member 12 does not need to move up and down in the second limiting member 362, but only approaches or moves away from the first support member 11 along the extension direction of the second elongated groove 362a.

[0085] Exemplarily, both ends of the second support member 12 also have limiting protrusions respectively to prevent the second support member 12 from escaping from the second elongated groove 362 a of the second limiting member 362 .

[0086] It is understandable that, since the second support member 12 is a driven member, it can be a flexible member or a rigid rod. Therefore, the main body material of the second support member 12 and the connecting member 15 in the frame structure can be a flexible insulating material, such as polyvinyl alcohol (PVA), polyester (PET), polyimide (PI), polyethylene naphthalate (PEN), etc.

[0087] Figure 4 is a schematic diagram of the side view structure of a photovoltaic blind (with a soundproof cavity) according to an embodiment of the present invention. Figure 4 As shown, the photovoltaic blinds also include a first glass 31 and a second glass 32 arranged in the window frame 30, and the first glass 31 and the second glass 32 are both located on the indoor side of the photovoltaic element 20; the first glass 31, the second glass 32 and a part of the window frame 30 form a vacuum soundproof cavity.

[0088] In order to improve the sound insulation performance of the photovoltaic blinds, a vacuum cavity is formed by evacuating the cavity between the first glass 31 and the second glass 32 on the indoor side of the window frame.

[0089] When the push-pull button 13 is used to push and pull the first support member 11 in the vertical direction, a transmission rod is provided on the side of the push-pull button 13 facing the window frame 30. The window frame 30 needs to be provided with a through hole for the transmission rod to pass through at the position of the push-pull button 13, so that the transmission rod is physically connected to the shift fork 14. Based on this, a flexible adhesive film 131, such as a rubber film, is provided in the through hole of the window frame 30 to seal the through hole, so that the transmission rod can pass through the sound insulation cavity in a sealed manner.

[0090] Continue as Figure 4 As shown, the photovoltaic blinds also include a third glass 33 arranged on the window frame 30, and the third glass 33 is located on the outdoor side of the photovoltaic element 20; the third glass 33, the second glass 32 and a part of the window frame 30 form a photovoltaic cavity for accommodating the frame structure and the photovoltaic element 20, and the photovoltaic cavity is filled with an inert gas.

[0091] Since the photovoltaic element 20 of the exemplary embodiment of the present invention can directly adopt the form of the photovoltaic cell 21 and the welding strip 22 , filling nitrogen or an inert gas in the photovoltaic cavity can protect the photovoltaic cell 21 and increase the service life of the photovoltaic cell 21 .

[0092] Based on this, the use of photovoltaic blinds in the form of a combination of a photovoltaic cavity and a soundproof cavity can not only solve the sound insulation problem, but also scatter the heat generated by the photovoltaic element 20 to the outdoors through the heat conduction of the gas in the photovoltaic cavity, thereby preventing heat accumulation from reducing the life of the photovoltaic cell 21.

[0093] For example, the first glass 31 may be a light-transmitting soundproof board. The third glass 33 may be a UV cutoff glass or a UV cutoff film may be coated on the outer side of the glass chamber, which may further reduce the damage of the photovoltaic cell 21 caused by UV irradiation.

[0094] The exemplary embodiment of the present invention further provides a method for manufacturing a photovoltaic blind, which may include the following steps:

[0095] Step S1: making a single photovoltaic louver;

[0096] Cutting a large-area photovoltaic cell sheet 21 into a plurality of long strip photovoltaic cell sheets 21 of the same size; connecting the long strip photovoltaic cell sheets 21 with welding strips 22 as required to form a photovoltaic cell string;

[0097] Step S2: Welding bypass diodes on the conductive busbars of the frame structure; when part of the solar cells are blocked or fail, the bypass diodes can prevent reverse current from flowing through the damaged solar cells, avoiding damage due to overheating, while ensuring that other normally working solar cells continue to generate electricity, thereby reducing power loss and extending the service life of the photovoltaic cells.

[0098] Step S3: welding a plurality of photovoltaic louvers to the conductive busbars on the frame structure according to the circuit diagram;

[0099] Step S4: welding the conductive busbars on the frame structure to the circuit input terminals and the circuit output terminals;

[0100] Step S5: Assembling the first support member 11 of the frame structure with a corresponding set of first position-limiting members 361 , and assembling the second support member 12 with a corresponding set of second position-limiting members 362 ;

[0101] Step S6: The circuit input terminal, the circuit output terminal and the window frame 30 are fixedly connected and then sealed with a sealant;

[0102] Step S7: The transmission rod on the push-pull button 13 passes through the through hole of the window frame 30 to form a physical connection with the shift fork 14, and the shift rod 111 on the first support member 11 is arranged in the corresponding slot of the shift fork 14, so as to form a transmission connection between the push-pull button 13 and the first support member 11, and a rubber film is arranged at the position corresponding to the through hole of the push-pull button 13 and the window frame 30 to form a sealing connection;

[0103] Step S8: installing the first glass 31, the second glass 32 and the third glass 33 in the window frame 30 and sealing them with a sealing ring;

[0104] Step S9: Through the reserved holes on the window frame 30, the photovoltaic cavity is evacuated and inert gas is injected and then sealed; the sound insulation cavity is evacuated and then sealed.

[0105] It should be understood by those skilled in the art that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A photovoltaic blind, characterized in that: The invention comprises two opposite frame structures and a plurality of photovoltaic elements, wherein the frame structure comprises a plurality of connecting members, and a first supporting member and a second supporting member opposite to each other, wherein two ends of the connecting member are respectively connected to the first supporting member and the second supporting member; Two ends of each photovoltaic element are electrically connected to corresponding connecting members of the two frame structures respectively; In the same frame structure, at least a portion of the connecting members are electrically connected; By adjusting the relative position of the first support member and the second support member in the same frame structure, the inclination angle of the photovoltaic element can be adjusted.

2. The photovoltaic blind according to claim 1, characterized in that: The photovoltaic element comprises at least one photovoltaic cell; When there are multiple photovoltaic cells, the photovoltaic element is a photovoltaic cell string electrically connected to the multiple photovoltaic cells.

3. The photovoltaic blind according to claim 1, characterized in that: It also includes a window frame and two groups of first position-limiting members arranged on the window frame, each group of the first position-limiting members includes two first position-limiting members, and the two first position-limiting members in the same group are respectively close to the bottom wall and the top wall of the window frame; Each of the first stoppers has a first elongated slot, and both ends of each of the first support members respectively pass through two of the first stoppers of the same group and are movably disposed in the first elongated slot along the vertical direction and the first direction; The first direction refers to: a distribution direction from the first supporting member to the second supporting member in the frame structure.

4. The photovoltaic blind according to claim 3, characterized in that: It also includes two linear motion mechanisms arranged on the window frame, each of the linear motion mechanisms being drivingly connected to the corresponding first support member; The linear motion mechanism moves along a vertical direction.

5. The photovoltaic blind according to claim 4, characterized in that: It also includes two groups of second stoppers arranged on the window frame, each group of the second stoppers includes two second stoppers, and the two second stoppers in the same group are respectively close to the bottom wall and the top wall of the window frame; Each of the second position-limiting members has a second elongated slot, and two ends of each of the second support members respectively pass through two of the second position-limiting members of the same group and are movably disposed in the second elongated slot along the first direction.

6. The photovoltaic blind according to claim 4, characterized in that: Each of the linear motion mechanisms includes at least one shift fork, and each of the first support members includes at least one shift rod; Each shift rod is arranged in a clamping groove of the corresponding shift fork.

7. The photovoltaic blind according to claim 4, characterized in that: Each of the second supporting members is fixedly arranged in the window frame.

8. The photovoltaic blind according to any one of claims 1 to 7, characterized in that: The connecting member is a flexible structural member; or, The connecting member is a rigid structural member, one end of which is hinged to the first supporting member, and the other end of which is hinged to the second supporting member.

9. The photovoltaic blind according to claim 8, characterized in that: The connecting member is a metal wire or a structural member coated with a conductive film; and / or, At least a portion of the connecting members are electrically connected via wires disposed on the first supporting member or the second supporting member; or, At least a portion of the connecting members is electrically connected via a conductive film coated on the first supporting member or the second supporting member.

10. The photovoltaic blind according to any one of claims 3 to 7, characterized in that: Also includes a first glass and a second glass arranged in the window frame, wherein the first glass and the second glass are both located on an indoor side of the photovoltaic element; The first glass, the second glass and a part of the window frame form a vacuum soundproof cavity; and / or, It also includes a second glass and a third glass arranged in the window frame, wherein the second glass is located on the indoor side of the photovoltaic element, and the third glass is located on the outdoor side of the photovoltaic element; The third glass, the second glass and a part of the window frame form a photovoltaic cavity for accommodating the frame structure and the photovoltaic element, and the photovoltaic cavity is filled with an inert gas.

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