Rotary solar tracking photovoltaic array system for building facade and mounting method of rotary solar tracking photovoltaic array system

Abstract

The invention discloses a rotary solar tracking photovoltaic array system for a building facade and an installation method. The rotary solar tracking photovoltaic array system comprises a plurality of lifting assemblies, a plurality of linkage rods, a plurality of photovoltaic arrays and a plurality of wall connecting pieces. The multiple lifting assemblies are sequentially arranged and fixed to the side wall of a building in the horizontal direction, the multiple linkage rods correspond to the multiple lifting assemblies, the multiple linkage rods are sequentially and vertically arranged in the horizontal direction and connected with the lifting ends of the lifting assemblies correspondingly, and the multiple lifting assemblies can drive the multiple linkage rods to synchronously ascend and descend; the wall connecting pieces are sequentially arranged in the vertical direction, the photovoltaic arrays and the wall connecting pieces are correspondingly and sequentially arranged in the vertical direction, each photovoltaic array is composed of a plurality of photovoltaic panels, the photovoltaic panels are sequentially arranged in the horizontal direction and are obliquely arranged, and the low ends, close to the end faces of the building side walls, of the photovoltaic panels are movably connected with movable connecting pieces. The photovoltaic panel is movably connected with the wall connecting piece through a movable connecting piece, the high end of the photovoltaic panel is movably connected with an inclined strut, and the inclined strut is movably connected with the linkage rod.

Description

Technical Field

[0001] The present invention relates to the technical field of building photovoltaics, and in particular to a rotating light-chasing photovoltaic array system for building facades and an installation method thereof. Background Art

[0002] At this stage, the country is vigorously developing building photovoltaic integration, which is conducive to promoting the use of renewable energy, reducing energy consumption in the construction industry, and achieving dual carbon goals.

[0003] At present, building photovoltaic panels are mostly installed on building roofs, or used as power-generating glass curtain walls in non-light-transmitting areas between floors of public buildings. They are rarely used on cement-based exterior walls, especially on the facades of residential buildings.

[0004] The above laying method has the following problems: photovoltaic panels laid horizontally on the roof have high power generation efficiency, but the roof area accounts for a low proportion of the building area. It is difficult to meet the electricity demand of high-rise buildings by laying photovoltaic panels only on the roof; the area of ​​the glass curtain wall in the non-light-transmitting area between floors is small, and the power generation efficiency of the facade is low, which is significantly reduced compared to the roof. Summary of the invention

[0005] In view of the above-mentioned technical problems existing in the laying of existing photovoltaic panels, the purpose of the present invention is to provide a rotating light-tracking photovoltaic array system and an installation method for building facades. By installing a lifting component and a connecting rod connected to the lifting component, the photovoltaic array is movably connected to the wall and the connecting rod respectively, and the lifting component is lifted and lowered synchronously so that the connecting rod drives the photovoltaic array to rotate. The photovoltaic panel array of the entire building facade can be lifted and lowered as a whole, and the solar incident angle can be synchronously tracked to adjust the rotation. The flexible arrangement of the photovoltaic array can be combined to match the facade effects of various newly built residential and public buildings, and can also be installed on the facades of existing buildings. The laying area is considerable and the photovoltaic power generation efficiency is high.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a rotating light-chasing photovoltaic array for building facades, comprising a plurality of lifting components, a plurality of linkage rods, a plurality of photovoltaic arrays, and a plurality of wall connecting parts;

[0007] The plurality of lifting assemblies are arranged in sequence along the horizontal direction and fixed on the side wall of the building. The plurality of linkage rods correspond to the plurality of lifting assemblies. The plurality of linkage rods are vertically arranged in sequence along the horizontal direction and are respectively connected to the lifting ends of the lifting assemblies. The plurality of lifting assemblies can drive the plurality of linkage rods to rise and fall synchronously.

[0008] The plurality of wall connecting members are arranged in sequence along the vertical direction, the plurality of photovoltaic arrays are arranged in sequence along the vertical direction corresponding to the plurality of wall connecting members, the photovoltaic array is composed of a plurality of photovoltaic panels, the plurality of photovoltaic panels are arranged in sequence along the horizontal direction and are arranged obliquely, the photovoltaic panels are movably connected to the lower end of the end surface close to the building side wall with a movable connecting member, the photovoltaic panels are movably connected to the wall connecting member through the movable connecting member, the plurality of photovoltaic panels in the same photovoltaic array are connected to the same wall connecting member through the movable connecting member, the photovoltaic panels are movably connected to the high end with a diagonal brace, and the diagonal brace is movably connected to the linkage rod;

[0009] A number of lifting components drive a number of linkage rods to rise and fall synchronously, and the linkage rods then synchronously drive a number of diagonal supports connected thereto to rotate, thereby driving a number of photovoltaic panels to rotate at the same angle, so that the inclination angles of the photovoltaic panels change.

[0010] Further, the lifting assembly includes a wall connecting plate, a first gear set, a second gear set, two lifting hinges, and a connecting member;

[0011] The wall connecting plate is provided with a connecting hole and is fixed to the side wall of the building. The first gear set and the second gear set are rotatably fixed relatively to the wall connecting plate.

[0012] The first gear set includes two first seat bearings, which are coaxially arranged on the connecting wall plate and can rotate relative to each other. The second gear set includes two second seat bearings, which are coaxially arranged on the connecting wall plate and can rotate relative to each other. A first connecting shaft is connected between the two first seat bearings, and a second connecting shaft is connected between the two second seat bearings. Gears are arranged on the first connecting shaft and the second connecting shaft. One end of the two lifting hinges is wound around the first connecting shaft and meshes with the gear on the first connecting shaft, and the other end is wound around the second connecting shaft and meshes with the gear on the second connecting shaft.

[0013] The connecting piece is respectively connected to the two ends of the two lifting hinges so that the two lifting hinges are in a closed ring shape, and the connecting piece is fixedly connected to the linkage rod.

[0014] Furthermore, the connecting piece is an I-shaped connecting piece, and connecting holes are respectively provided on the left side of the upper flange, the right side of the upper flange, the left side of the lower flange, and the right side of the lower flange. Threaded columns are respectively provided at both ends of the lifting hinges. The two ends of the two lifting hinges are respectively inserted into the connecting holes on the left side of the upper flange, the right side of the upper flange, the left side of the lower flange, and the right side of the lower flange of the connecting piece through the threaded columns, and the threaded columns are respectively fixed to the upper flange and the lower flange of the connecting piece through nuts.

[0015] Furthermore, the first connecting shafts between two first seat bearings in the plurality of lifting assemblies are coaxially arranged, a transmission shaft is connected between adjacent connecting shafts, and the transmission shaft is connected to a driving motor.

[0016] Furthermore, the photovoltaic panel is provided with a mounting frame at the end face close to the building exterior wall, and a plurality of movable connecting parts are provided at the lower end of the mounting frame, and the movable connecting parts include a first hinged fitting and a second hinged fitting, the first hinged fitting is fixed to the lower end of the frame, the first hinged fitting is hinged to the second hinged fitting, and the second hinged fitting is fixed to the wall connecting part through a pad and bolts, so that the photovoltaic panel can rotate relative to the building wall around the hinge point of the first hinged fitting and the second hinged fitting;

[0017] A plurality of first ear plates are arranged at the high end of the installation frame, a second ear plate corresponding to the first ear plate is arranged on the linkage rod, and two ends of the diagonal support are respectively hinged to the first ear plate and the second ear plate.

[0018] In order to achieve the above object, the present invention provides an installation method for a rotating photovoltaic array system for a building facade, which is used for any one of the above items, and the installation method includes:

[0019] S1: First, a plurality of wall connecting plates are horizontally arranged in sequence and fixed with threads on the building's exterior wall, and then a plurality of wall connecting members are vertically arranged in sequence and fixed with threads on the building's exterior wall;

[0020] S2: Then install the first gear set and the second gear set on several connecting plates, and then respectively wind the two lifting hinges around the first connecting shaft between the two first seat bearings and the second connecting shaft between the two second seat bearings, and connect the two ends of the two lifting hinges through connecting pieces so that the lifting hinges are in a closed ring shape, and then install several lifting components in sequence, and then fix several linkage rods to the connecting pieces in the lifting components respectively;

[0021] S3: Connecting and fixing the plurality of transmission shafts to the first connecting shafts between two first seat bearings in the plurality of adjacent lifting assemblies, and then arranging a driving motor to be connected to the transmission shafts, so that the plurality of lifting assemblies can be lifted and lowered synchronously;

[0022] S4: The lower ends of several photovoltaic panels are fixed in turn by the second hinged accessories and the wall connecting parts to realize the connection between the photovoltaic panels and the outer wall of the building, and then the diagonal brace is connected between the first ear plate set at the high ends of several photovoltaic panels and the second ear plate on the connecting rod to connect the several photovoltaic panels to the lifting assembly, and finally the electromechanical pipelines between the several photovoltaic panels are laid.

[0023] The rotating light-tracking photovoltaic array system and installation method for building facades provided by the present invention can achieve the following goals: by installing a lifting assembly and a linkage rod connected to the lifting assembly, the photovoltaic array is movably connected to the wall and the linkage rod respectively, and the lifting assembly is synchronously lifted and lowered so that the linkage rod drives the photovoltaic array to rotate. The photovoltaic panel array of the entire building facade can be lifted and lowered as a whole, and the solar incident angle can be synchronously tracked to adjust the rotation. The photovoltaic array can be combined with the flexible arrangement of the photovoltaic array to match the facade effects of various newly built residential and public buildings, and can also be installed on the facades of existing buildings. The laying area is considerable and the photovoltaic power generation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic diagram of the front view structure of the rotating light-chasing photovoltaic array system for building facades provided by the present invention;

[0026] Figure 2 A schematic diagram of the side structure of a rotating light-chasing photovoltaic array system for building facades provided by the present invention;

[0027] Figure 3 A schematic diagram of the structure of a lifting component in a rotating light-chasing photovoltaic array system for a building facade provided by the present invention.

[0028] Illustration Description:

[0029] Lifting assembly 100, linkage rod 200, photovoltaic array 300, wall connecting member 400, movable connecting member 500, diagonal brace 600;

[0030] The wall plate 110, the first gear set 120, the first seat bearing 121, the first connecting shaft 122, the second gear set 130, the second seat bearing 131, the second connecting shaft 132, the lifting hinge 140, the connecting piece 150, the transmission shaft 160, the driving motor 170, the photovoltaic panel 310, the mounting frame 311, the first articulated accessory 510, the second articulated accessory 520, the first ear plate 610, and the second ear plate 620. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0032] The rotating light-chasing photovoltaic array system for building facades provided by the present invention can be installed on the exterior wall of the building, and can adjust the angle of the photovoltaic panel array according to the incident angle of the sun, thereby greatly improving the power generation efficiency.

[0033] See also Figure 1, which is a schematic diagram of the structure of a rotating light-chasing photovoltaic array system for building facades provided by the present invention.

[0034] According to the diagram, the rotating photovoltaic array system for building facades provided by the present invention includes four components: a plurality of lifting components 100, a plurality of connecting rods 200, a plurality of photovoltaic arrays 300, and a plurality of wall connecting members 400.

[0035] Among them, a number of lifting assemblies 100 are arranged in sequence along the horizontal direction and fixed on the side wall of the building, a number of linkage rods 200 correspond to the number of lifting assemblies 100, a number of linkage rods 200 are vertically arranged in sequence along the horizontal direction and are respectively connected to the lifting ends of the lifting assemblies 100, and the number of lifting assemblies 100 can drive the number of linkage rods 200 to rise and fall synchronously;

[0036] A plurality of wall connecting members 400 are arranged in sequence along the vertical direction, and a plurality of photovoltaic arrays 300 correspond to the plurality of wall connecting members 400 and are arranged in sequence along the vertical direction;

[0037] The photovoltaic array 300 is composed of a plurality of photovoltaic panels 310, which are arranged in sequence in the horizontal direction and are tilted. The lower end of the photovoltaic panel 310 close to the end surface of the building side wall is connected with a movable connecting piece 500, and the photovoltaic panel 310 is movably connected to the wall connecting piece 400 through the movable connecting piece 500. The plurality of photovoltaic panels 310 in the same photovoltaic array 300 are all connected to the same wall connecting piece 400 through the movable connecting piece 500. The upper end of the photovoltaic panel 310 is movably connected with a diagonal brace 600, and the diagonal brace 600 is movably connected to the linkage rod 200.

[0038] A plurality of lifting assemblies 100 drive a plurality of linkage rods 200 to rise and fall synchronously, and the plurality of linkage rods 200 then synchronously drive a plurality of diagonal supports connected thereto to rotate, thereby driving a plurality of photovoltaic panels 310 to rotate at the same angle, so that the tilt angles of the plurality of photovoltaic panels 310 change.

[0039] The present solution does not limit the specific number of lifting components 100, connecting rods 200, photovoltaic arrays 300, wall connecting parts 400 and photovoltaic panels 310 in the photovoltaic array 300, which can be determined according to actual needs. For example, in this embodiment, six groups of lifting components 100, six connecting rods 200, four groups of photovoltaic arrays 300 and four groups of wall connecting parts 400 are used. Each group of photovoltaic arrays 300 includes three photovoltaic panels 310, and each photovoltaic panel 310 corresponds to two groups of lifting components 100 and two connecting rods 200. The two lower corners of the photovoltaic panel 310 are respectively provided with movable connecting parts, and the two movable connecting parts are movably connected to the wall connecting parts 400. The two higher corners of the photovoltaic panel 310 are respectively provided with diagonal braces, and the two diagonal braces are respectively movably connected to the two connecting rods 200 corresponding to the photovoltaic panel 310. Such a structural quantity makes the overall reliability of the system high.

[0040] Specifically, Figure 3 , the lifting assembly 100 includes a wall plate 110, a first gear set 120, a second gear set 130, two lifting hinges 140, and a connecting member 150;

[0041] The wall plate 110 is provided with a connection hole and is fixed to the side wall of the building. This solution preferably adopts threaded fixation. When a new prefabricated building is constructed, internal threaded screw holes are reserved on the surface of the prefabricated components in combination with the in-depth design of the components. In this way, the wall plate 110 is directly connected to the internal threaded holes. When it is installed on an existing building, the wall plate 110 is fixed to the building by post-installed expansion bolts on the building wall.

[0042] The first gear set 120 and the second gear set 130 are rotatably fixed relative to each other on the wall connecting plate 110.

[0043] like Figure 3 The first gear set 120 includes two first seat bearings 121, which are relatively coaxially arranged on the wall plate 110. The second gear set 130 includes two second seat bearings 131, which are relatively coaxially arranged on the wall plate 110. A first connecting shaft 122 is connected between the two first seat bearings 121, and a second connecting shaft 132 is connected between the two second seat bearings 131. Gears are arranged on the first connecting shaft 122 and the second connecting shaft 132. One end of the two lifting hinges 140 is wound around the first connecting shaft 122 and meshed with the gear on the first connecting shaft 122, and the other end is wound around the second connecting shaft 132 and meshed with the gear on the second connecting shaft 132.

[0044] The connecting member 150 is respectively connected to both ends of the two lifting hinges 140 so that the two lifting hinges 140 are in a closed ring shape;

[0045] The connecting member 150 is fixed to the connecting rod 200 by welding;

[0046] In actual application, when the gear is driven to rotate by the connecting shaft, the gear drives the lifting hinge 140 to rotate, thereby realizing the lifting and lowering of the connecting member 150 forming a closed loop with the lifting hinge 140, and finally completing the control of the up and down movement of the linkage rod 200.

[0047] Furthermore, the connecting member 150 is an I-shaped connecting member, and connecting holes are respectively provided on the left side of the upper flange, the right side of the upper flange, the left side of the lower flange, and the right side of the lower flange. Threaded columns are respectively provided at both ends of the lifting hinge 140. The two ends of the two lifting hinges 140 are respectively inserted into the connecting holes on the left side of the upper flange, the right side of the upper flange, the left side of the lower flange, and the right side of the lower flange of the connecting member 150 through threaded columns, and the threaded columns are respectively fixed to the upper flange and the lower flange of the connecting member 150 through nuts.

[0048] Furthermore, if Figure 1 In this solution, the first connecting shafts 122 between the two first seat bearings 121 in the lifting assemblies 100 are coaxially arranged, and the transmission shafts 160 are connected between the adjacent first connecting shafts 122, and the transmission shafts 160 are connected to the driving motors 170;

[0049] The driving motor 170 can drive the transmission shaft 160 to rotate, and the transmission shaft 160 can synchronously drive the first connecting shafts 122 to rotate through the rotation, so that the lifting assemblies 100 can be lifted synchronously.

[0050] The number of the wall ties 400 is the same as the number of the photovoltaic arrays 300. The wall ties 400 are all arranged parallel to the horizontal plane. The photovoltaic array 300 is fixed to the exterior wall of the building through the wall ties 400. In this example, the wall ties 400 are preferably C-shaped channel steels. The connection method between the wall ties 400 and the exterior wall of the building is the same as that of the wall ties 110, which will not be repeated here.

[0051] In order to facilitate the connection of electromechanical pipelines between the photovoltaic panels 310, the above-mentioned photovoltaic arrays 300 are connected in series in the present solution, and the photovoltaic panels in each row are connected in parallel, so as to complete the photovoltaic array of the entire building facade to form an overall external direct current output. That is to say, the photovoltaic panels 310 in the photovoltaic arrays 300 are connected in series in sequence to form a whole, and the photovoltaic arrays 300 are connected in parallel in the energy storage module.

[0052] Furthermore, a mounting frame 311 is provided at the end face of the photovoltaic panel 310 close to the building exterior wall, and a plurality of movable connectors 500 are provided at the lower end of the mounting frame 311. The movable connectors 500 include a first hinged fitting 510 and a second hinged fitting 520. The first hinged fitting 510 is fixed at the lower end of the frame 311, and the first hinged fitting 510 is hinged to the second hinged fitting 520. The second hinged fitting 520 is fixed to the wall connecting member 400 through a pad and bolts, so that the photovoltaic panel 310 can rotate relative to the building wall around the hinge point between the first hinged fitting 510 and the second hinged fitting 520.

[0053] A plurality of first ear plates 610 are provided at the high end of the mounting frame 311, and a second ear plate 620 corresponding to the first ear plate 610 is provided on the connecting rod 200, and both ends of the diagonal brace 600 are respectively hinged to the first ear plate 610 and the second ear plate 620, so that the vertical lifting and lowering movement of the connecting rod 200 can drive the diagonal brace 600 to rotate, thereby changing the inclination angle of the photovoltaic panel 310.

[0054] In order to further improve the intelligence of this solution, this solution can further be provided with a photosensitive component and a control system. The photosensitive component can sense the intensity of light and convert it into a resistance value and send it to the control system. The control system controls the start and stop of the drive motor 170 according to the resistance value to adjust the incident angle between the photovoltaic panel 310 and the light, thereby improving the efficiency of the photovoltaic panel 310. The photosensitive component senses sunlight to realize automatic control of the opening and closing of the photovoltaic panel.

[0055] Based on the rotating light-chasing photovoltaic array system for building facades formed by the above scheme, this scheme also provides an installation method, and the installation steps are as follows:

[0056] S1: First, a plurality of wall connecting plates 110 are horizontally arranged in sequence and fixed to the building outer wall by threads, and then a plurality of wall connecting members 400 are vertically arranged in sequence and fixed to the building outer wall by threads;

[0057] S2: Then, the first gear set 120 and the second gear set 130 are installed on the plurality of connecting plates 110, and then the two lifting hinges 140 are respectively wound around the first connecting shaft 122 between the two first seat bearings 121 and the second connecting shaft 132 between the two third gears 131, and the two ends of the two lifting hinges 140 are connected by the connecting member 150 so that the lifting hinge 140 is in a closed ring shape, and the plurality of lifting assemblies 100 are installed in sequence, and then the plurality of linkage rods 200 are respectively fixedly connected to the connecting members 150 in the lifting assemblies 100;

[0058] S3: Connect and fix the transmission shaft 160 to the first connecting shaft 122 between the first seat bearings 120 in the adjacent lifting assemblies 100, and then connect the driving motor 170 to the transmission shaft 160, so that the lifting assemblies 100 can be lifted and lowered synchronously;

[0059] S4: The lower ends of the photovoltaic panels 310 are fixed in turn by the second hinged fittings 510 and the wall connecting parts 400 to realize the connection between the photovoltaic panels 310 and the exterior wall of the building, and then the diagonal brace 600 is connected between the first ear plate 610 set on the high ends of the photovoltaic panels 310 and the second ear plate 620 on the connecting rod 200 to connect the photovoltaic panels 310 and the lifting assembly 100, and finally the electromechanical pipelines between the photovoltaic panels 310 are laid.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rotating light-chasing photovoltaic array system for building facades, characterized in that: It includes a number of lifting components, a number of linkage rods, a number of photovoltaic arrays, and a number of wall connecting parts; The plurality of lifting assemblies are arranged in sequence along the horizontal direction and fixed on the side wall of the building. The plurality of linkage rods correspond to the plurality of lifting assemblies. The plurality of linkage rods are vertically arranged in sequence along the horizontal direction and are respectively connected to the lifting ends of the lifting assemblies. The plurality of lifting assemblies can drive the plurality of linkage rods to rise and fall synchronously. The plurality of wall connecting members are arranged in sequence along the vertical direction, the plurality of photovoltaic arrays are arranged in sequence along the vertical direction corresponding to the plurality of wall connecting members, the photovoltaic array is composed of a plurality of photovoltaic panels, the plurality of photovoltaic panels are arranged in sequence along the horizontal direction and are arranged obliquely, the photovoltaic panels are movably connected to the lower end of the end surface close to the building side wall with a movable connecting member, the photovoltaic panels are movably connected to the wall connecting member through the movable connecting member, the plurality of photovoltaic panels in the same photovoltaic array are connected to the same wall connecting member through the movable connecting member, the photovoltaic panels are movably connected to the high end with a diagonal brace, and the diagonal brace is movably connected to the linkage rod; A number of lifting components drive a number of linkage rods to rise and fall synchronously, and the linkage rods then synchronously drive a number of diagonal supports connected thereto to rotate, thereby driving a number of photovoltaic panels to rotate at the same angle, so that the inclination angles of the photovoltaic panels change.

2. The rotating light-chasing photovoltaic array system for building facades according to claim 1, characterized in that: The lifting assembly includes a wall connecting plate, a first gear set, a second gear set, two lifting hinges, and a connecting piece; The wall connecting plate is provided with a connecting hole and is fixed to the side wall of the building. The first gear set and the second gear set are rotatably fixed relatively to the wall connecting plate. The first gear set includes two first seat bearings, which are coaxially arranged on the connecting wall plate and can rotate relative to each other. The second gear set includes two second seat bearings, which are coaxially arranged on the connecting wall plate and can rotate relative to each other. A first connecting shaft is connected between the two first seat bearings, and a second connecting shaft is connected between the two second seat bearings. Gears are arranged on the first connecting shaft and the second connecting shaft. One end of the two lifting hinges is wound around the first connecting shaft and meshes with the gear on the first connecting shaft, and the other end is wound around the second connecting shaft and meshes with the gear on the second connecting shaft. The connecting piece is respectively connected to the two ends of the two lifting hinges so that the two lifting hinges are in a closed ring shape, and the connecting piece is fixedly connected to the linkage rod.

3. The rotating light-chasing photovoltaic array system for building facades according to claim 2, characterized in that: The connecting piece is an I-shaped connecting piece, and connecting holes are respectively provided on the left side of the upper flange, the right side of the upper flange, the left side of the lower flange, and the right side of the lower flange. Threaded columns are respectively provided at both ends of the lifting hinges. The two ends of the two lifting hinges are respectively inserted into the connecting holes on the left side of the upper flange, the right side of the upper flange, the left side of the lower flange, and the right side of the lower flange of the connecting piece through the threaded columns, and the threaded columns are respectively fixed to the upper flange and the lower flange of the connecting piece through nuts.

4. The rotating light-chasing photovoltaic array system for building facades according to claim 2, characterized in that: The first connecting shafts between two first seat bearings in the plurality of lifting assemblies are coaxially arranged, and a transmission shaft is connected between adjacent connecting shafts, and the transmission shaft is connected to a driving motor.

5. The rotating light-chasing photovoltaic array system for building facades according to claim 1, characterized in that: The photovoltaic panel is provided with a mounting frame at the end face close to the building exterior wall, and a plurality of movable connecting parts are provided at the lower end of the mounting frame, and the movable connecting parts include a first hinged fitting and a second hinged fitting, the first hinged fitting is fixed at the lower end of the frame, the first hinged fitting is hinged to the second hinged fitting, and the second hinged fitting is fixed to the wall connecting part through a pad and bolts, so that the photovoltaic panel can rotate relative to the building wall around the hinge point of the first hinged fitting and the second hinged fitting; A plurality of first ear plates are arranged at the high end of the installation frame, a second ear plate corresponding to the first ear plate is arranged on the linkage rod, and two ends of the diagonal support are respectively hinged to the first ear plate and the second ear plate.

6. A construction method for a rotating light-chasing photovoltaic array system for a building facade, characterized in that: include: S1: First, a plurality of wall connecting plates are horizontally arranged in sequence and fixed with threads on the building's exterior wall, and then a plurality of wall connecting members are vertically arranged in sequence and fixed with threads on the building's exterior wall; S2: Then install the first gear set and the second gear set on several connecting plates, and then respectively wind the two lifting hinges around the first connecting shaft between the two first seat bearings and the second connecting shaft between the two second seat bearings, and connect the two ends of the two lifting hinges through connecting pieces so that the lifting hinges are in a closed ring shape, and then install several lifting components in sequence, and then fix several linkage rods to the connecting pieces in the lifting components respectively; S3: Connecting and fixing the plurality of transmission shafts to the first connecting shafts between two first seat bearings in the plurality of adjacent lifting assemblies, and then arranging a driving motor to be connected to the transmission shafts, so that the plurality of lifting assemblies can be lifted and lowered synchronously; S4: The lower ends of several photovoltaic panels are fixed in turn by the second hinged accessories and the wall connecting parts to realize the connection between the photovoltaic panels and the outer wall of the building, and then the diagonal brace is connected between the first ear plate set at the high ends of several photovoltaic panels and the second ear plate on the connecting rod to connect the several photovoltaic panels to the lifting assembly, and finally the electromechanical pipelines between the several photovoltaic panels are laid.

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