Angle-adjustable energy-saving photovoltaic curtain wall

Abstract

The invention relates to the technical field of photovoltaic curtain walls, in particular to an angle-adjustable energy-saving photovoltaic curtain wall which comprises an adjusting head and a photovoltaic panel, the adjusting head is provided with a transmission assembly and two winding shafts, and the rotating directions of the two winding shafts are opposite; a cable is wound on each winding shaft, and the cables on the two winding shafts are connected to the two ends of the photovoltaic panel in the width direction respectively; the two winding shafts rotate in opposite directions, the mooring rope is pulled to enable the photovoltaic panel to rotate around the first axis, and therefore automatic adjustment of the angle of the photovoltaic panel in the horizontal direction is achieved, the inclination angle of the photovoltaic panel in the vertical direction is adjusted in cooperation with an existing transmission assembly and the two winding shafts, and the light receiving face of the photovoltaic panel can be perpendicular to sunlight in real time; compared with single-dimension adjustment or fixed-angle installation, the receiving quantity of direct light can be improved, and the power generation efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic curtain walls, and in particular to an energy-saving photovoltaic curtain wall capable of adjusting the angle. Background Art

[0002] A photovoltaic curtain wall, also known as a photoelectric curtain wall, can convert light energy into electrical energy through a battery. In order to ensure the power generation efficiency of the photovoltaic curtain wall, it is necessary to adjust the angle of the photovoltaic curtain wall. Chinese Patent Authorization Publication No. CN213897694U discloses a fixing device for a curtain wall column with adjustable angle, which adopts a double-column structure and realizes the horizontal and vertical angle adjustment of the curtain wall column by manually rotating bolts. It needs to operate each column separately, and the adjustment process depends on the experience of construction workers and is time-consuming; while Chinese Patent Authorization Publication No. CN221321401U discloses an energy-saving aluminum alloy curtain wall with adjustable angle, which manually adjusts the angle of the curtain wall panel through the nested design of a sleeve bracket and a telescopic angle bracket. The adjustment range is limited and the synchronous movement of multiple groups of curtain walls cannot be realized. The above two solutions mainly solve the problem of angle adjustment during curtain wall installation. However, as existing photovoltaic curtain wall technologies, their common deficiency is that the adjustment method relies on manual operation or mechanical telescopic structure, and the adjustment angle is limited. Summary of the Invention

[0003] In view of the above problems, an energy-saving photovoltaic curtain wall capable of adjusting the angle is provided. By rotating two take-up reels in opposite directions, the cable is pulled to make the photovoltaic panel rotate around the first axis, thereby realizing the automatic adjustment of the horizontal angle of the photovoltaic panel. By coordinating with the existing transmission components and two take-up reels, the inclination angle of the photovoltaic panel in the vertical direction is adjusted, so that the light-receiving surface of the photovoltaic panel can be perpendicular to the sun's rays in real time. Compared with single-dimensional adjustment or fixed-angle installation, the amount of direct sunlight received can be increased, and the power generation efficiency can be further improved.

[0004] To solve the problems of the prior art, the present invention provides an energy-saving photovoltaic curtain wall capable of adjusting the angle, including an adjusting head and a photovoltaic panel installed on the wall surface. The adjusting head is provided with a first axis extending in the vertical direction; the photovoltaic panel is rotatably arranged on the adjusting head around the first axis; two coaxial take-up reels are arranged beside the first axis on the adjusting head. The two take-up reels are respectively located at the top and bottom of the adjusting head, and the axes of the two take-up reels are parallel and coplanar with the first axis, and the rotation directions of the two take-up reels are opposite; a cable is wound on each take-up reel, and the cables on the two take-up reels are respectively connected to both ends of the photovoltaic panel in the width direction; the adjusting head is further provided with a transmission component for synchronously driving the two take-up reels, and by driving the two take-up reels to rotate through the transmission component, the angle adjustment of the photovoltaic panel is realized.

[0005] Preferably, there are multiple adjusting heads, and mounting seats with a matching number and arranged in a rectangular array are provided on the wall surface. Each mounting seat is provided with a second axis extending in the horizontal direction, and the adjusting head is rotatably arranged on the mounting seat around the second axis.

[0006] Preferably, the transmission assembly includes a transmission shaft arranged between two winding shafts. The axis of the transmission shaft is perpendicular to the winding shafts. One end of the transmission shaft close to the winding shafts is provided with a first bevel gear, and one end of each of the two winding shafts close to each other is provided with a second bevel gear meshed with the first bevel gear.

[0007] Preferably, a driving shaft capable of sliding along the direction of the second axis is provided on the mounting seat. When the driving shaft slides, there are a first limit position and a second limit position. And a first transmission member and a second transmission member are provided on the driving shaft. When the driving shaft slides to the first limit position, the adjusting head is in transmission connection with the driving shaft; when the driving shaft moves to the second limit position, the transmission shaft is in transmission connection with the driving shaft.

[0008] Preferably, two support rings coaxial with the second axis are provided on the mounting seat. The adjusting head is sleeved on the two support rings, and there is a gap between the two support rings. The first transmission member is a spline, the spline is sleeved on the driving shaft, and a key groove matching the spline is provided at the gap between the two support rings on the adjusting head.

[0009] Preferably, the second transmission member is a first gear. The first gear is sleeved on the driving shaft. The axis of the transmission shaft is parallel to the second axis, and a second gear is sleeved on the transmission shaft. When the driving shaft moves to the second limit position, the first gear is meshed with the second gear.

[0010] Preferably, a fixing seat is provided beside the mounting seat. The driving shaft includes a fixing part rotatably mounted on the fixing seat and a driving part capable of sliding along the direction of the second axis. A magnetic attraction block is sleeved on one end of the driving part away from the mounting seat, and an elastic member is sleeved on the driving part. An electromagnet is provided on the mounting seat.

[0011] Preferably, an angle sensor for real-time monitoring of the rotation angle and a photosensitive sensor for detecting the incident angle of sunlight are provided on the photovoltaic panel.

[0012] Preferably, the fixing parts of the driving shafts in the same vertical column on the wall surface are connected to each other through a first synchronous belt.

[0013] Preferably, a mounting shaft extending in the horizontal direction is further provided at the top of the wall surface. The fixing part of one of the driving shafts in the synchronous vertical column is connected to the mounting shaft through a second synchronous belt.

[0014] The beneficial effects of the present invention compared with the prior art are: 1. The present invention enables the automatic adjustment of the horizontal angle of the photovoltaic panel by rotating two take-up reels in opposite directions to pull the cable, causing the photovoltaic panel to rotate around the first axis. By coordinating with the existing transmission components and the two take-up reels to adjust the tilt angle of the photovoltaic panel in the vertical direction, the light-receiving surface of the photovoltaic panel can be perpendicular to the sun's rays in real time. Compared with single-dimensional adjustment or fixed-angle installation, it can increase the amount of direct sunlight received and further improve the power generation efficiency.

[0015] 2. The present invention uses an angle sensor to continuously monitor the rotation angle of the photovoltaic panel around the first axis or the second axis, and converts the angle data into an electrical signal for transmission to the control system at the backend. By using a photosensitive sensor to detect the incident intensity and angle of the sun's rays, the azimuth angle and altitude angle of the current sun can be identified. This ensures that the light-receiving surface of the photovoltaic panel is always dynamically perpendicular to the sun's rays, which can further improve the power generation efficiency of the photovoltaic panel and increase the automation level of the equipment compared to manual adjustment or fixed-angle solutions.

[0016] 3. In the present invention, the fixing parts of the drive shafts in the same vertical column on the wall are all connected by a first synchronous belt, and through the setting of the mounting shaft and the second synchronous belt, only the mounting shaft needs to be driven, enabling all the photovoltaic panels on the wall to synchronously adjust their angles. This significantly reduces the input of drive sources, fundamentally simplifies the power system architecture, and reduces the hardware cost and control complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of a mounting seat, an adjusting head, and a photovoltaic panel in an energy-saving photovoltaic curtain wall capable of adjusting the angle Figure 1 .

[0018] Figure 2 is a top view of a mounting seat, an adjusting head, and a photovoltaic panel in an energy-saving photovoltaic curtain wall capable of adjusting the angle.

[0019] Figure 3 is a side view of a mounting seat, an adjusting head, and a photovoltaic panel in an energy-saving photovoltaic curtain wall capable of adjusting the angle.

[0020] Figure 4 is a three-dimensional structural schematic diagram of a mounting seat, an adjusting head, and a photovoltaic panel in an energy-saving photovoltaic curtain wall capable of adjusting the angle Figure 2 .

[0021] Figure 5 is a three-dimensional structural schematic diagram of an adjusting head, a transmission component, and a photovoltaic panel in an energy-saving photovoltaic curtain wall capable of adjusting the angle.

[0022] Figure 6 is a sectional three-dimensional structural schematic diagram of an adjusting head, a transmission component, and two take-up reels in an energy-saving photovoltaic curtain wall capable of adjusting the angle.

[0023] Figure 7It is an exploded view of a mounting base, a drive shaft, and an adjustment head in an energy-saving photovoltaic curtain wall capable of adjusting the angle.

[0024] Figure 8 It is a three-dimensional structure schematic diagram when all photovoltaic panels in an energy-saving photovoltaic curtain wall capable of adjusting the angle synchronously adjust the vertical angle.

[0025] Figure 9 It is a three-dimensional structure schematic diagram when all photovoltaic panels in an energy-saving photovoltaic curtain wall capable of adjusting the angle synchronously adjust the horizontal angle.

[0026] Figure 10 It is a three-dimensional structure schematic diagram of a part of an energy-saving photovoltaic curtain wall capable of adjusting the angle.

[0027] The reference numerals in the figure are: 1, wall surface; 11, mounting base; 111, support ring; 112, electromagnet; 12, drive shaft; 121, first transmission member; 1211, spline; 122, second transmission member; 1221, first gear; 123, fixing part; 1231, fixing seat; 124, drive part; 1241, magnetic attraction block; 1242, elastic member; 125, first synchronous belt; 13, mounting shaft; 131, second synchronous belt; 2, adjustment head; 21, winding shaft; 211, second bevel gear; 22, cable; 23, transmission assembly; 231, transmission shaft; 2311, first bevel gear; 2312, second gear; 24, keyway; 3, photovoltaic panel. Specific implementation manner

[0028] To further understand the features, technical means, and the specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0029] As Figures 1 to 6 shown: An energy-saving photovoltaic curtain wall capable of adjusting the angle includes an adjustment head 2 and a photovoltaic panel 3 mounted on a wall surface 1. The adjustment head 2 is provided with a first axis extending in the vertical direction; the photovoltaic panel 3 is rotatably arranged on the adjustment head 2 around the first axis; two coaxial winding shafts 21 are arranged on the adjustment head 2 beside the first axis. The two winding shafts 21 are respectively located at the top and bottom of the adjustment head 2, and the axes of the two winding shafts 21 are parallel and coplanar with the first axis, and the rotation directions of the two winding shafts 21 are opposite; a cable 22 is wound on each winding shaft 21, and the cables 22 on the two winding shafts 21 are respectively connected to both ends in the width direction of the photovoltaic panel 3; the adjustment head 2 is further provided with a transmission assembly 23 for synchronously driving the two winding shafts 21. By driving the two winding shafts 21 to rotate through the transmission assembly 23, the angle of the photovoltaic panel 3 is adjusted.

[0030] The first axis extending vertically along the adjusting head 2 serves as the central axis for the rotation of the photovoltaic panel 3. The photovoltaic panel 3 is sleeved on the first axis and can rotate freely. Two coaxial cable reels 21 at the top and bottom of the adjusting head 2 are parallel to and coplanar with the first axis, forming a symmetrical layout. The transmission assembly 23 serves as the power source, synchronously driving the two cable reels 21 to rotate, ensuring that they have the same rotational speed while rotating in opposite directions.

[0031] When the transmission assembly 23 drives the upper cable reel 21 to rotate clockwise, the lower cable reel 21 will rotate synchronously, and the lower cable reel 21 rotates counterclockwise. Since cable ropes 22 are provided on both of the two cable reels 21, and the two cable ropes 22 are respectively connected to both ends of the photovoltaic panel 3 in the width direction, when the upper cable reel 21 winds up the cable rope 22, the lower cable reel 21 will release the cable rope 22. As a result, one end of the photovoltaic panel 3 is under tension, while the other end is slack, thereby driving the photovoltaic panel 3 to tilt towards the winding side, enabling the photovoltaic panel 3 to rotate around the first axis by a certain angle; The axes of the two cable reels 21 are parallel to and coplanar with the first axis, ensuring that the pulling direction of the cable rope 22 is always perpendicular to the first axis, avoiding the generation of lateral torque. When the two cable reels 21 rotate in opposite directions, the pulling forces of the cable ropes 22 on both ends of the photovoltaic panel 3 form a pair of balanced force couples, enabling the photovoltaic panel 3 to rotate smoothly around the first axis without offset load shaking.

[0032] The transmission assembly 23 is preferably a servo motor, which receives instructions through the control system at the rear end to precisely control the number of rotations and speed of the cable reel 21, thereby realizing the automatic adjustment of the angle of the photovoltaic panel 3. For example, it can adjust the tilt angle of the photovoltaic panel 3 in real time according to the solar altitude angle to ensure that the photovoltaic panel 3 is always perpendicular to the sun's rays.

[0033] In the way that the two cable reels 21 are driven by the transmission assembly 23, if one side of the cable rope 22 breaks or the cable reel 21 gets stuck, the other side can still temporarily maintain the basic angle of the photovoltaic panel 3 to avoid complete failure. The modular setting of the cable reel 21 allows the cable rope 22 to be separately disassembled and replaced, with relatively low maintenance costs. The above adjustment method can also cooperate with the horizontal direction adjustment mechanism to form a two-dimensional angle adjustment system for the photovoltaic panel 3. The vertical direction cable reel 21 drive and the horizontal direction independent control do not interfere with each other, meeting the precise light tracking requirements in complex lighting environments and further improving the power generation efficiency of the photovoltaic panel 3.

[0034] As Figures 1 to 7 shown: There are multiple adjusting heads 2. Mounting seats 11 that match the number of adjusting heads 2 and are arranged in a rectangular array are provided on the wall surface 1. Each mounting seat 11 is provided with a second axis extending in the horizontal direction, and the adjusting head 2 is rotatably arranged on the mounting seat 11 around the second axis.

[0035] In order to further improve the luminous efficiency of the photovoltaic panel 3, the rotation of the photovoltaic panel 3 in the horizontal direction is increased; when it is necessary to adjust the horizontal orientation of the photovoltaic panel 3, it is preferably to drive the adjusting head 2 to rotate around the second axis of the mounting seat 11 through a servo motor, so that the photovoltaic panel 3 located on the adjusting head 2 can move synchronously with the adjusting head 2, thereby realizing the adjustment of the horizontal inclination angle of the photovoltaic panel 3.

[0036] By coordinating with the existing transmission component 23 and two winding shafts 21 to adjust the inclination angle of the photovoltaic panel 3 in the vertical direction, the light-receiving surface of the photovoltaic panel 3 can be perpendicular to the sun's rays in real time. Compared with single-dimensional adjustment or fixed-angle installation, it can increase the amount of direct sunlight received and further improve the power generation efficiency. The horizontal second axis of the mounting seat 11 and the vertical first axis of the adjusting head 2 are independent of each other, supporting precise linkage without interference. The rectangular array layout of multiple mounting seats 11 makes the adjusting heads 2 form a regular grid structure on the wall surface 1. Each adjusting head 2 can rotate independently or in coordination, significantly reducing the processing cost and installation time, and is especially suitable for large-scale building photovoltaic integration projects. Each adjusting head 2 has the same structure and can be used interchangeably, facilitating the management of spare parts and facilitating later maintenance.

[0037] As Figures 1 to 6 shown: The transmission component 23 includes a transmission shaft 231 arranged between the two winding shafts 21. The axis of the transmission shaft 231 is perpendicular to the winding shafts 21. One end of the transmission shaft 231 close to the winding shafts 21 is provided with a first bevel gear 2311, and both ends of the two winding shafts 21 close to each other are provided with second bevel gears 211 meshed with the first bevel gear 2311.

[0038] The power source of the transmission shaft 231 is preferably driven by a servo motor. When the transmission shaft 231 rotates, the first bevel gear 2311 rotates accordingly. The rotation of the first bevel gear 2311 drives the two second bevel gears 211 meshed with it to rotate. Since the two second bevel gears 211 are respectively installed on the two winding shafts 21 and they are both meshed with the same first bevel gear 2311, the two winding shafts 21 will rotate in opposite directions. And the cable 22 is wound around the winding shafts 21, and the cable 22 is connected to the photovoltaic panel 3. The reverse rotation of the two winding shafts 21 will cause the cable 22 to be wound and unwound, thereby pulling the photovoltaic panel 3 to rotate around the second axis, and finally realizing the adjustment of the angle of the photovoltaic panel 3.

[0039] The transmission component 23 realizes the reverse rotation of the two winding shafts 21 through the meshing of the first bevel gear 2311 and the two second bevel gears 211. Compared with other complex transmission methods, this structure is simpler, has lower cost, and higher reliability at the same time, ensuring that the winding shafts 21 obtain sufficient power to pull the photovoltaic panel 3, and improving the working efficiency of the entire photovoltaic curtain wall adjustment system.

[0040] The layout where the transmission shaft 231 is perpendicular to the axis of the winding shaft 21 and the use of the first bevel gear 2311 and the two second bevel gears 211 make the structure of the entire transmission assembly 23 very compact. This compact structure can reduce the occupied space, is suitable for installation and use in the photovoltaic curtain wall adjuster 2 with limited space, and is conducive to the overall installation and layout of the photovoltaic curtain wall. The transmission assembly 23 has relatively few components and a simple structure, which makes the daily maintenance and repair work easier, and can reduce the maintenance cost and time. During the process of adjusting the angle of the photovoltaic panel 3, it can ensure the accuracy of the rotation speed and direction of the winding shaft 21, thereby realizing the precise adjustment of the angle of the photovoltaic panel 3, improving the tracking accuracy of the photovoltaic curtain wall for sunlight, and increasing the photovoltaic power generation.

[0041] As Figures 1 to 7 shown: A drive shaft 12 capable of sliding along the second axis direction is provided on the mounting seat 11. When the drive shaft 12 slides, there are a first limit position and a second limit position, and a first transmission member 121 and a second transmission member 122 are provided on the drive shaft 12. When the drive shaft 12 slides to the first limit position, the adjuster 2 is in transmission connection with the drive shaft 12; when the drive shaft 12 moves to the second limit position, the transmission shaft 231 is in transmission connection with the drive shaft 12.

[0042] When the drive shaft 12 moves to the first limit position, the first transmission member 121 on the drive shaft 12 establishes a transmission connection with the adjuster 2. At this time, the power of the drive shaft 12 is transmitted to the adjuster 2 through the first transmission member 121, enabling the adjuster 2 to rotate around the second axis on the mounting seat 11. Since the photovoltaic panel 3 is installed on the adjuster 2, the rotation of the adjuster 2 will drive the photovoltaic panel 3 to rotate horizontally around the second axis, thereby realizing the adjustment of the horizontal angle of the photovoltaic panel 3. When the drive shaft 12 moves to the second limit position, the second transmission member 122 on the drive shaft 12 establishes a transmission connection with the transmission shaft 231 for driving the winding shaft 21 on the adjuster 2. In this way, the power of the drive shaft 12 is transmitted to the transmission shaft 231 through the second transmission member 122, and the transmission shaft 231 then drives the winding shaft 21 to rotate. The cable 22 on the winding shaft 21 will be wound and unwound as the winding shaft 21 rotates, thereby pulling the photovoltaic panel 3 to rotate around the second axis on the adjuster 2, realizing the adjustment of the vertical angle of the photovoltaic panel 3.

[0043] By switching the drive shaft 12 between the first limit position and the second limit position, one drive shaft 12 can respectively drive the adjuster 2 and the transmission shaft 231, thereby realizing the adjustment of the angle of the photovoltaic panel 3 in two dimensions, horizontal and vertical. This design avoids using multiple independent drive devices to control the adjustments in different directions respectively, simplifies the structure of the drive system of the entire photovoltaic curtain wall, and reduces the equipment cost and installation complexity. This flexible control method can enable the photovoltaic panel 3 to better track the sun's rays and improve the photovoltaic power generation efficiency.

[0044] Since the number of drive devices is reduced, the probability of failure and maintenance points are reduced accordingly. The reliability and stability of a single drive shaft 12 as a power source are relatively high, reducing the risk of failure of the entire system due to failure of multiple drive devices. It also makes the layout of the entire system more compact, and no additional space is required to install multiple drive devices. This is very important for photovoltaic curtain wall installation environments with limited space, and can effectively improve space utilization.

[0045] like Figures 2 to 7 As shown: two support rings 111 coaxial with the second axis are arranged on the mounting seat 11, the adjusting head 2 is sleeved on the two support rings 111, and there is a gap between the two support rings 111. The first transmission member 121 is a spline 1211, and the spline 1211 is sleeved on the driving shaft 12. A keyway 24 matching the spline 1211 is arranged on the adjusting head 2 at the gap between the two support rings 111.

[0046] Through the two support rings 111 on the mounting seat 11, the adjusting head 2 can be sleeved on the two support rings 111 and rotate around the second axis. When the photovoltaic panel 3 needs to be adjusted in angle, the driving shaft 12 is preferably driven by a servo motor, so that the driving shaft 12 starts to rotate, and at the same time, the driving shaft 12 moves along the direction of the second axis. When the driving shaft 12 moves to the first extreme position, the spline 1211 and the keyway 24 on the adjusting head 2 are engaged with each other. At this time, the rotation of the driving shaft 12 is transmitted to the adjusting head 2 through the cooperation of the spline 1211 and the keyway 24, so that the adjusting head 2 rotates around the second axis. Since the photovoltaic panel 3 is installed on the adjusting head 2, the rotation of the adjusting head 2 drives the photovoltaic panel 3 to rotate around the second axis, thereby realizing the angle adjustment of the photovoltaic panel 3 in the vertical direction.

[0047] When it is necessary to disconnect the power connection between the adjusting head 2 and the driving shaft 12, the driving head is moved to the second extreme position to separate the spline 1211 from the keyway 24. It should be noted that a shaft damping device is provided between the adjusting head 2 and the mounting seat 11 to ensure that the adjusting head 2 can maintain a fixed position after the power connection with the driving shaft 12 is disconnected, thereby realizing flexible control of the angle of the photovoltaic panel 3.

[0048] The matching mode of the spline 1211 and the keyway 24 has a high-precision transmission characteristic, which can accurately transmit the power of the drive shaft 12 to the adjustment head 2, so that the photovoltaic panel 3 can achieve precise angle adjustment in the vertical direction. The support ring 111 is used as the installation carrier of the adjustment head 2, and the matching structure of the spline 1211 and the keyway 24 is set at the gap between the two support rings 111, which ensures the stability of the adjustment process, reduces vibration and shaking, and prolongs the service life of the equipment.

[0049] like Figures 2 to 7As shown: The second transmission member 122 is a first gear 1221. The first gear 1221 is sleeved on the drive shaft 12. The axis of the transmission shaft 231 is parallel to the second axis, and a second gear 2312 is sleeved on the transmission shaft 231. When the drive shaft 12 moves to the second extreme position, the first gear 1221 is meshed and connected with the second gear 2312.

[0050] When the drive shaft 12 slides along the second axis to the second extreme position, the first gear 1221 on the drive shaft 12 and the second gear 2312 on the transmission shaft 231 are automatically meshed due to the alignment of the axial positions, forming a gear transmission pair; in cooperation with the rotation of the drive shaft 12, the power is transmitted to the second gear 2312 through the rotation of the first gear 1221, and the rotation of the second gear 2312 drives the rotation of the transmission shaft 231; the transmission shaft 231 further drives the take-up shaft 21 connected thereto, thereby driving the photovoltaic panel 3 to rotate around the first axis to realize the angle adjustment in the vertical direction. When the drive shaft 12 slides to the first extreme position, the first gear 1221 and the second gear 2312 are separated, so that the transmission shaft 231 is disconnected from the power connection. It should be noted that a shaft damping device will be provided between the adjusting head 2 and the photovoltaic panel 3 to ensure that the photovoltaic panel 3 can maintain its position fixed after the power connection between the take-up shaft 21 and the transmission shaft 231 is disconnected, thereby realizing flexible control of the angle of the photovoltaic panel 3.

[0051] As Figures 2 to 7 shown: A fixed seat 1231 is provided beside the mounting seat 11. The drive shaft 12 includes a fixed portion 123 rotatably mounted on the fixed seat 1231 and a drive portion 124 capable of sliding along the second axis direction. One end of the drive portion 124 away from the mounting seat 11 is sleeved with a magnetic attraction block 1241, and an elastic member 1242 is sleeved on the drive portion 124. An electromagnet 112 is provided on the mounting seat 11.

[0052] In the initial state, the drive shaft 12 is in the first extreme position, that is, the drive portion 124 of the drive shaft 12 is away from the mounting seat 11. At this time, the spline 1211 on the drive shaft 12 cooperates with the keyway 24 on the adjusting head 2. When an external power source drives the drive shaft 12 to rotate, the rotation of the drive shaft 12 is transmitted to the adjusting head 2 through the cooperation of the spline 1211 and the keyway 24, so that the adjusting head 2 rotates around the second axis, and then drives the photovoltaic panel 3 mounted on the adjusting head 2 to realize the angle adjustment in the horizontal direction.

[0053] When it is necessary to adjust the angle of the photovoltaic panel 3 in the vertical direction, the electromagnet 112 on the mounting base 11 is energized, and the electromagnet 112 generates a magnetic field to produce an attractive force on the magnetic attraction block 1241 on the driving part 124. This attractive force overcomes the elastic force of the elastic member 1242, causing the driving part 124 to move closer to and slide along the second axis direction towards the mounting base 11. As the driving part 124 slides, the driving shaft 12 gradually moves from the first limit position to the second limit position. When the driving part 124 abuts against the mounting base 11, the driving shaft 12 reaches the second limit position. At this position, the first gear 1221 on the driving shaft 12 meshes with the second gear 2312 on the transmission shaft 231. At this time, an external power source drives the driving shaft 12 to rotate, and the rotation of the driving shaft 12 is transmitted to the transmission shaft 231 through the meshing of the first gear 1221 and the second gear 2312, and the transmission shaft 231 then drives the winding shaft 21 to work, thereby realizing the angle adjustment of the photovoltaic panel 3 in the vertical direction.

[0054] After the electromagnet 112 is powered off, the magnetic field of the electromagnet 112 disappears. At this time, the elastic force of the elastic member 1242 pushes the driving part 124 to slide in a direction away from the mounting base 11, and the driving shaft 12 returns to the first limit position, restoring to the initial power transmission mode.

[0055] By controlling the movement of the driving shaft 12 between the first limit position and the second limit position through the electromagnet 112, one driving shaft 12 can achieve two different power transmission modes, thereby realizing the angle adjustment of the photovoltaic panel 3 in different directions. It avoids using multiple independent driving devices to control the adjustment in different directions respectively, simplifies the structure of the driving system of the entire photovoltaic curtain wall, and reduces the equipment cost and installation complexity. By using the energization and power-off of the electromagnet 112 to control the position movement of the driving shaft 12, the automatic control of the adjustment process is realized. According to actual factors such as the illumination condition and time, the energization and power-off of the electromagnet 112 can be automatically controlled through the control system at the rear end, so as to flexibly switch the adjustment mode of the photovoltaic panel 3, make the photovoltaic panel 3 better track the sun rays, and improve the photovoltaic power generation efficiency.

[0056] As Figure 1 、 Figure 8 and Figure 9 shown: An angle sensor for real-time monitoring of the rotation angle and a photosensitive sensor for detecting the incident angle of the sun rays are provided on the photovoltaic panel 3.

[0057] The rotation angle of the photovoltaic panel 3 around the first axis or the second axis is monitored in real time by an angle sensor (not shown in the figure), and the angle data is converted into an electrical signal and transmitted to the control system at the back end. The incident intensity and angle of the sunlight are detected by a photosensitive sensor (not shown in the figure) to identify the azimuth angle and altitude angle of the current sun. The light-receiving surface of the photovoltaic panel 3 is always dynamically perpendicular to the sunlight, which can further improve the power generation efficiency of the photovoltaic panel 3 and the automation degree of the equipment compared with the manual adjustment or fixed-angle scheme.

[0058] As Figure 1 , Figures 8 to 10 shown: The fixing parts 123 of the driving shafts 12 in the same vertical column on the wall surface 1 are connected to each other through the first synchronous belt 125.

[0059] The fixing parts 123 of the driving shafts 12 in the same vertical column on the wall surface 1 are all connected through the first synchronous belt 125, so that only one of the fixing parts 123 needs to be driven, and all the photovoltaic panels 3 in the same vertical column will be adjusted in angle uniformly, reducing the input of driving sources.

[0060] As Figure 1 , Figures 8 to 10 shown: An installation shaft 13 extending in the horizontal direction is further provided at the top of the wall surface 1, and the fixing part 123 of one of the driving shafts 12 in the synchronous vertical column is connected to the installation shaft 13 through the second synchronous belt 131.

[0061] Through the arrangement of the installation shaft 13 and the second synchronous belt 131, only the installation shaft 13 needs to be driven, so that all the photovoltaic panels 3 on the wall surface 1 can be adjusted in angle synchronously, greatly reducing the input of driving sources, fundamentally simplifying the power system architecture, and reducing the hardware cost and control complexity.

[0062] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An energy-saving photovoltaic curtain wall capable of adjusting the angle, comprising an adjusting head (2) and a photovoltaic panel (3) installed on a wall surface (1), characterized in that, The adjusting head (2) is provided with a first axis extending in the vertical direction; The photovoltaic panel (3) is rotatably arranged on the adjusting head (2) around the first axis; On the adjusting head (2), two coaxial cable winding shafts (21) are arranged beside the first axis. The two cable winding shafts (21) are respectively located at the top and bottom of the adjusting head (2), and the axes of the two cable winding shafts (21) are parallel and coplanar with the first axis, and the rotation directions of the two cable winding shafts (21) are opposite; A cable (22) is wound on each cable winding shaft (21), and the cables (22) on the two cable winding shafts (21) are respectively connected to both ends of the photovoltaic panel (3) in the width direction; The adjusting head (2) is further provided with a transmission component (23) for synchronously driving the two cable winding shafts (21). By driving the two cable winding shafts (21) to rotate through the transmission component (23), the angle of the photovoltaic panel (3) is adjusted.

2. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 1, wherein There are multiple adjusting heads (2). On the wall surface (1), mounting seats (11) that match the number of adjusting heads (2) and are arranged in a rectangular array are provided. Each mounting seat (11) is provided with a second axis extending in the horizontal direction, and the adjusting head (2) is rotatably arranged on the mounting seat (11) around the second axis.

3. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 2, characterized in that, The transmission component (23) includes a transmission shaft (231) arranged between the two cable winding shafts (21). The axis of the transmission shaft (231) is perpendicular to the cable winding shafts (21). At one end of the transmission shaft (231) close to the cable winding shafts (21), a first bevel gear (2311) is provided, and at one end of each of the two cable winding shafts (21) close to each other, a second bevel gear (211) meshingly connected with the first bevel gear (2311) is provided.

4. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 3, characterized in that, On the mounting seat (11), a driving shaft (12) capable of sliding along the direction of the second axis is provided. When the driving shaft (12) slides, there are a first limit position and a second limit position, and a first transmission part (121) and a second transmission part (122) are provided on the driving shaft (12). When the driving shaft (12) slides to the first limit position, the adjusting head (2) is in transmission connection with the driving shaft (12); when the driving shaft (12) moves to the second limit position, the transmission shaft (231) is in transmission connection with the driving shaft (12).

5. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 4, characterized in that, On the mounting seat (11), two support rings (111) coaxial with the second axis are provided. The adjusting head (2) is sleeved on the two support rings (111), and there is a gap between the two support rings (111). The first transmission part (121) is a spline (1211), the spline (1211) is sleeved on the driving shaft (12), and a key groove (24) matching the spline (1211) is provided at the gap between the two support rings (111) on the adjusting head (2).

6. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 4, wherein, The second transmission part (122) is a first gear (1221), the first gear (1221) is sleeved on the driving shaft (12), the axis of the transmission shaft (231) is parallel to the second axis, and a second gear (2312) is sleeved on the transmission shaft (231). When the driving shaft (12) moves to the second limit position, the first gear (1221) is in meshing connection with the second gear (2312).

7. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 4, wherein A fixed seat (1231) is provided beside the mounting seat (11). The drive shaft (12) includes a fixed portion (123) rotatably mounted on the fixed seat (1231) and a drive portion (124) capable of sliding along the second axis direction. A magnetic attraction block (1241) is sleeved on one end of the drive portion (124) away from the mounting seat (11), and an elastic member (1242) is sleeved on the drive portion (124). An electromagnet (112) is provided on the mounting seat (11).

8. A kind of energy-saving photovoltaic curtain wall capable of adjusting the angle according to any one of claims 1-7, characterized in that, An angle sensor for real-time monitoring of the rotation angle and a photosensitive sensor for detecting the incident angle of sunlight are provided on the photovoltaic panel (3).

9. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 7, wherein, The fixed portions (123) of the drive shafts (12) located in the same vertical column on the wall surface (1) are connected to each other through a first synchronous belt (125).

10. The energy-saving photovoltaic curtain wall capable of adjusting the angle according to claim 9, characterized in that, An installation shaft (13) extending in the horizontal direction is further provided at the top of the wall surface (1). The fixed portion (123) of one of the drive shafts (12) on the synchronous vertical column is connected to the installation shaft (13) through a second synchronous belt (131).

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