Wingspan type photovoltaic energy storage system

Abstract

The wingspan type photovoltaic energy storage system comprises an energy storage box and at least two side photovoltaic modules, and an energy storage device is arranged in the energy storage box; the two side photovoltaic modules are symmetrically arranged on the sides of the energy storage box, each side photovoltaic module comprises a pulley device, and the side photovoltaic modules are folded and unfolded on the sides of the energy storage box through the pulley devices; the side photovoltaic module is connected with the energy storage device, and generated electric energy is transmitted to the energy storage device to be stored. By arranging the pulley device in the side photovoltaic module, the side photovoltaic module can be automatically folded and unfolded, the wing unfolding angle of the side photovoltaic module can be automatically adjusted by tracking the sun position, the structure is simple, the performance is reliable, and time and labor are saved in the arrangement process.

Description

Technical Field

[0001] The present invention generally relates to the technical field of photovoltaic power generation, and more specifically to a wingspan-type photovoltaic energy storage system. Background Art

[0002] At present, photovoltaic power generation has become one of the most widely used and technologically mature power generation methods due to its renewable nature, high efficiency and energy saving, safety and reliability, large-scale design and flexibility. The energy storage system plays a positive role in energy protection, grid stability, peak load shifting, power optimization and other aspects of the power system. It not only achieves the balance of energy supply and demand, but also promotes the sustainable development of the economy. At this stage, energy storage is in a stage of rapid growth. In view of the advantages of both, people install photovoltaic panels on the energy storage box to realize the collection of photovoltaic power generation, as well as to increase the discharge capacity of the energy storage system and reduce its own power loss to improve the discharge output efficiency of the energy storage system.

[0003] A photovoltaic energy storage device is designed in the prior art, where photovoltaic panels are installed on the top and side of the energy storage box, and support rods are installed between the photovoltaic panels and the side walls of the energy storage box, and the photovoltaic panels are supported by the support rods so that the photovoltaic panels can be deployed. However, this solution needs to be installed on-site at the destination and operated manually, which is time-consuming and labor-intensive, and the support angle cannot be adjusted, and it can only be deployed in parallel, resulting in a low photovoltaic utilization rate.

[0004] Therefore, it is necessary to provide a wingspan photovoltaic energy storage system to at least partially solve the above problems. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above problems, the present invention provides a wingspan photovoltaic energy storage system, comprising:

[0007] An energy storage box, wherein an energy storage device is arranged inside the energy storage box;

[0008] At least two side photovoltaic modules, the two side photovoltaic modules are symmetrically arranged on the sides of the energy storage box, and the side photovoltaic modules include a pulley device, which is used to fold and unfold on the side of the energy storage box;

[0009] The side photovoltaic module is connected to the energy storage device, and the generated electric energy is transmitted to the energy storage device for storage.

[0010] Optionally, the side photovoltaic module further comprises:

[0011] a first photovoltaic panel, the first photovoltaic panel being capable of performing photovoltaic conversion to generate electrical energy;

[0012] A first bracket, wherein a first side of the first bracket is hinged to the top of the energy storage box, the first photovoltaic panel is arranged on the first bracket, the pulley device is connected to the first bracket, and the first bracket is driven by the pulley device to fold and unfold on the side of the energy storage box.

[0013] Optionally, the pulley device comprises:

[0014] A plurality of force arms, the force arms are respectively arranged on the top of the energy storage box and the first bracket, and each force arm is provided with a pulley;

[0015] A traction rope, the traction rope is wound around the pulley, and a first end of the traction rope is connected to any one of the force arms;

[0016] A driving device is arranged on the top of the energy storage box, the second end of the traction rope is connected to the driving device, and the driving device pulls up or puts down the first bracket through the traction rope.

[0017] Optionally, the pulley device comprises:

[0018] At least four lever arms, namely a first lever arm, a second lever arm, a third lever arm and a fourth lever arm;

[0019] The first force arm and the third force arm are arranged on the top of the energy storage box, the second force arm and the fourth force arm are arranged on the first bracket, the first force arm and the second force arm are located on the third side of the first bracket, the third force arm and the fourth force arm are located on the fourth side of the first bracket, each of the force arms is provided with a pulley, a first traction rope is provided between the first force arm and the second force arm, and a second traction rope is provided between the third force arm and the fourth force arm.

[0020] Optionally, the first end of the first traction rope is connected to the first lever arm or the second lever arm, the second end of the first traction rope is connected to the driving device, the first end of the second traction rope is connected to the third lever arm or the fourth lever arm, the second end of the second traction rope is connected to the driving device, and the driving device pulls up or lowers the first bracket through the first traction rope and the second traction rope.

[0021] Optionally, a first buckle is provided on the first lever arm or the second lever arm to fix the first end of the first traction rope, and a second buckle is provided on the third lever arm or the fourth lever arm to fix the first end of the second traction rope.

[0022] Optionally, the first force arm and the third force arm are fixedly connected to the top of the energy storage box and remain in a standing state, and the second force arm and the fourth force arm are hinged to the first bracket, and when the side photovoltaic module is unfolded, the second force arm and the fourth force arm are in a standing state on the first bracket, and when the side photovoltaic module is folded, the second force arm and the fourth force arm are in a laid down state on the first bracket.

[0023] Optionally, a first pulley is provided at the upper end of the first lever arm, a second pulley is provided at the lower end, a third pulley is provided at the upper end of the second lever arm, and the first traction rope is passed through the third pulley, the first pulley, and the second pulley in sequence, and then connected to the driving device;

[0024] A fourth pulley is provided at the upper end of the third lever arm, a fifth pulley is provided at the lower end, a sixth pulley is provided at the upper end of the fourth lever arm, and the second traction rope is passed around the sixth pulley, the fourth pulley, and the fifth pulley in sequence, and then connected to the driving device.

[0025] Optionally, the driving device synchronously reels in and releases the first traction rope and the second traction rope.

[0026] Optionally, the side photovoltaic module further comprises:

[0027] Two support rods are respectively arranged on the second side and the fourth side of the first bracket. When repairing the side photovoltaic module, the first end of the support rod is supported on the first bracket, and the second end of the support rod is supported on the side wall of the energy storage box.

[0028] Optionally, a plurality of legs are provided on the third side of the first bracket, and the first bracket is supported on the side wall of the energy storage box by the legs.

[0029] Optionally, the wingspan photovoltaic energy storage system further includes:

[0030] A top photovoltaic module is disposed on the top of the energy storage box, and the top photovoltaic module is connected to the energy storage device, and the generated electric energy is transmitted to the energy storage device for storage.

[0031] Optionally, the top photovoltaic module comprises:

[0032] a second photovoltaic panel, the second photovoltaic panel being capable of performing photovoltaic conversion to generate electrical energy;

[0033] The second bracket is fixedly connected to the top of the energy storage box, the second photovoltaic panel is arranged on the second bracket, and the width H of the second bracket is greater than the width L of the energy storage box.

[0034] Optionally, the first bracket is hinged to the second bracket, and the first force arm and the third force arm are fixed on the second bracket.

[0035] Optionally, the wingspan photovoltaic energy storage system further includes:

[0036] A control device, the control device is connected to the driving device and can control the operation of the driving device;

[0037] A light-chasing sensor is connected to the control device. According to the light data detected by the light-chasing sensor, the control device controls the operation of the driving device to adjust the light receiving angle of the side photovoltaic module after it is unfolded.

[0038] Optionally, the wingspan photovoltaic energy storage system further includes:

[0039] A control device, the control device is connected to the driving device and can control the operation of the driving device;

[0040] A wind speed sensor is connected to the control device. According to wind data detected by the wind speed sensor, the control device controls the operation of the driving device to adjust the deployment state of the side photovoltaic module.

[0041] According to a wingspan photovoltaic energy storage system of the present invention, by setting a pulley device in the side photovoltaic module, the side photovoltaic module can be automatically folded and unfolded. It has a simple structure and reliable performance. It does not require manual installation by staff at the destination site, and the layout process saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The embodiments of the present invention and their description are shown in the drawings to explain the principles of the present invention. In the drawings,

[0043] Figure 1 This is a front view of a wingspan photovoltaic energy storage system according to a preferred embodiment of the present invention, in which the photovoltaic panels on the left and right sides are in a folded state;

[0044] Figure 2 This is a left view of a wingspan photovoltaic energy storage system according to a preferred embodiment of the present invention, in which the photovoltaic panels on the left and right sides are in a folded state;

[0045] Figure 3 This is a front view of a wingspan photovoltaic energy storage system according to a preferred embodiment of the present invention, in which the photovoltaic panels on the left and right sides are in an unfolded state;

[0046] Figure 4 for Figure 3Enlarged view of the middle D part;

[0047] Figure 5 for Figure 1 Enlarged view of part A in the middle;

[0048] Figure 6 for Figure 2 Enlarged view of middle part B;

[0049] Figure 7 for Figure 2 Enlarged view of middle C;

[0050] Figure 8 A top view of a wingspan photovoltaic energy storage system according to a preferred embodiment of the present invention, in which the photovoltaic panels on the left and right sides are in a folded state;

[0051] Fig. 9 A top view of a wingspan photovoltaic energy storage system according to a preferred embodiment of the present invention, in which the photovoltaic panels on the left and right sides are in an unfolded state;

[0052] Fig.10 This is a right side view of a wingspan photovoltaic energy storage system according to a preferred embodiment of the present invention, in which the photovoltaic panels on the left and right sides are in a folded state;

[0053] Fig.11 A circuit schematic diagram of a wingspan photovoltaic energy storage system according to a preferred embodiment of the present invention;

[0054] Fig.12 The schematic diagram is a circuit diagram of a wingspan-type photovoltaic energy storage system according to a preferred embodiment of the present invention.

[0055] Description of reference numerals:

[0056] 1: Energy storage box 10: Base frame

[0057] 11: First side wall 12: First side photovoltaic module

[0058] 120: first photovoltaic panel 121: driving device

[0059] 122: First bracket 123: First lever arm

[0060] 124: first traction rope 125: second lever arm

[0061] 126: third lever arm 127: second traction rope

[0062] 128: fourth lever arm 129: first support rod

[0063] 130: second lock 131: fourth pulley

[0064] 132: Sixth pulley 133: Hinge

[0065] 134: Leg 14: Top photovoltaic module

[0066] 141: Second photovoltaic panel 142: Second bracket

[0067] 15: Second side wall 16: Second side photovoltaic module

[0068] 160: first photovoltaic panel 161: driving device

[0069] 162: First bracket 163: First lever arm

[0070] 164: first traction rope 165: second lever arm

[0071] 166: The third lever 167: The second traction rope

[0072] 168: fourth lever arm 169: first support rod

[0073] 170: Second lock 173: Hinge

[0074] 18: Top 19: Energy storage device DETAILED DESCRIPTION

[0075] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0076] In order to fully understand the present invention, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0077] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifications and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0078] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0079] The invention discloses a wingspan type photovoltaic energy storage system.

[0080] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0081] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment, a wingspan photovoltaic energy storage system comprises: an energy storage box 1 and at least two side photovoltaic modules, in which a first side photovoltaic module 12 and a second side photovoltaic module 16 are provided;

[0082] The energy storage box 1 is provided with an energy storage device 19, which may include: a battery system, a fire protection system, a HVAC system, an energy storage converter, an EMS control system, a transformer, a system cabinet and other components; the function of the energy storage device 19 is to store the electricity generated by photovoltaic power generation or use it for auxiliary power consumption to improve the efficiency of energy storage output;

[0083] The two side photovoltaic modules are symmetrically arranged on the side of the energy storage box 1, and the side photovoltaic modules include a pulley device, which is used to fold and unfold the side of the energy storage box 1. When folding, the side photovoltaic modules rotate downward, and when unfolding, the side photovoltaic modules rotate upward;

[0084] The side photovoltaic modules are connected to the energy storage device 19, and the generated electrical energy is transmitted to the energy storage device 19 for storage.

[0085] The wingspan photovoltaic energy storage system in this embodiment can automatically fold and unfold the side photovoltaic modules by setting a pulley device in the side photovoltaic modules. It has a simple structure and reliable performance. It does not require manual installation by staff at the destination site, and the layout process saves time and effort.

[0086] like Figure 1 , Figure 2 , Figure 3 As shown, the first side photovoltaic module 12 and the second side photovoltaic module 16 have the same structure and are symmetrically arranged on the side of the energy storage box 1. The first side photovoltaic module 12 is taken as an example for detailed description below, and the structure of the second side photovoltaic module 16 can refer to the first side photovoltaic module 12.

[0087] In one embodiment, if Figure 2 , Figure 3 As shown, the first side photovoltaic module 12 further includes:

[0088] A first photovoltaic panel 120, which is a device that directly converts light energy into electrical energy using a photoelectric effect or a photochemical effect, and can perform photovoltaic conversion to generate electrical energy;

[0089] The first bracket 122, the first side of the first bracket 122 is hinged to the top 18 of the energy storage box 1, the first photovoltaic panel 120 is arranged on the first bracket 122, the pulley device is connected to the first bracket 122, and the first bracket 122 is driven by the pulley device to fold and unfold on the side of the energy storage box 1.

[0090] The first bracket 122 is a frame structure, which can be a steel structure frame made of rectangular pipes, capable of supporting the first photovoltaic panel 120. The first side of the first bracket 122 is the side close to the top 18 of the energy storage box 1, and multiple hinges 133 can be set to connect the top 18 of the energy storage box 1. During the folding and unfolding process, the first bracket 122 rotates around the hinge 133, which can be referred to Figure 8 , Fig. 9 shown.

[0091] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the pulley device includes:

[0092] Multiple lever arms, which may be more than two lever arms, are respectively arranged on the top 18 of the energy storage box 1 and the first bracket 122, and each lever arm is provided with a pulley;

[0093] A traction rope is wound around a pulley, and a first end of the traction rope is connected to any one of the lever arms; the traction rope can be a steel wire rope, which is not easily broken even after long-term use;

[0094] The driving device 121 is disposed on the top 18 of the energy storage box 1 , and the second end of the traction rope is connected to the driving device 121 . The driving device 121 pulls up or lowers the first bracket 122 through the traction rope.

[0095] The driving device 121 may include a motor, a reducer, a reel and other components. The motor is connected to the reducer, the reducer is connected to the reel, and the second end of the traction rope is connected to the reel. The driving device 121 reels the traction rope to pull up the first bracket 122 to unfold the first side photovoltaic module 12. The driving device 121 releases the traction rope to put down the first bracket 122 to fold the first side photovoltaic module 12.

[0096] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the pulley device includes:

[0097] At least four lever arms, namely a first lever arm 123, a second lever arm 125, a third lever arm 126 and a fourth lever arm 128;

[0098] The first lever arm 123 and the third lever arm 126 are arranged on the top 18 of the energy storage box 1, the second lever arm 125 and the fourth lever arm 128 are arranged on the first bracket 122, the first lever arm 123 and the second lever arm 125 are located on the third side (front side) of the first bracket 122, the third lever arm 126 and the fourth lever arm 128 are located on the fourth side (rear side) of the first bracket 122, a pulley is arranged in each lever arm, a first traction rope 124 is arranged between the first lever arm 123 and the second lever arm 125, and a second traction rope 127 is arranged between the third lever arm 126 and the fourth lever arm 128.

[0099] The first lever arm 123, the second lever arm 125, the third lever arm 126 and the fourth lever arm 128 can be made of rectangular pipes, which have high structural strength, and pulleys can be arranged inside. Through holes are arranged on the pipe wall corresponding to the pulleys for the traction rope to pass through.

[0100] In one embodiment, if Figure 2 , Figure 3 , Figure 4 As shown, the first end of the first traction rope 124 is connected to the first lever arm 123 or the second lever arm 125, the second end of the first traction rope 124 is connected to the driving device 121, the first end of the second traction rope 127 is connected to the third lever arm 126 or the fourth lever arm 128, the second end of the second traction rope 127 is connected to the driving device 121, and the driving device 121 pulls up or lowers the first bracket 122 through the first traction rope 124 and the second traction rope 127.

[0101] In the figure, the first end of the first traction rope 124 is connected to the first lever 123, and the first end of the second traction rope 127 is connected to the third lever 126. By providing two sets of traction ropes and corresponding levers and pulleys, force can be applied to the first bracket 122 from both the front and rear sides of the first bracket 122, ensuring that the folding and unfolding process of the first side photovoltaic module 12 is stable and smooth, and there will be no tilting that causes the mechanism to get stuck or damaged.

[0102] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, a first buckle is provided on the first lever arm 123 or the second lever arm 125 to fix the first end of the first traction rope 124 , and a second buckle 130 is provided on the third lever arm 126 or the fourth lever arm 128 to fix the first end of the second traction rope 127 .

[0103] In the figure, a first lock buckle is provided on the first force arm 123 to fix the first end of the first traction rope 124, and a second lock buckle 130 is provided on the third force arm 126 to fix the first end of the second traction rope 127.

[0104] The first lock buckle can lock the first end of the first traction rope 124 with the first traction rope 124 itself. By setting the first lock buckle, the first end of the first traction rope 124 can be firmly connected to the first lever arm 123 or the second lever arm 125; the second lock buckle 130 can lock the first end of the second traction rope 127 with the second traction rope 127 itself. By setting the second lock buckle 130, the first end of the second traction rope 127 can be firmly connected to the third lever arm 126 or the fourth lever arm 128 to avoid loosening and causing safety accidents.

[0105] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the first lever arm 123 and the third lever arm 126 are fixedly connected to the top 18 of the energy storage box 1 and remain in a standing state, the second lever arm 125 and the fourth lever arm 128 are hinged to the first bracket 122, and when the first side photovoltaic module 12 is unfolded, the second lever arm 125 and the fourth lever arm 128 are in a standing state on the first bracket 122, and when the first side photovoltaic module 12 is folded, the second lever arm 125 and the fourth lever arm 128 are in a laid-down state on the first bracket 122.

[0106] The first lever arm 123 and the third lever arm 126 can be fixedly connected to the top 18 of the energy storage box 1 by welding or bolting. Figure 4 , Figure 6 As shown, the standing state may be perpendicular to the top 18 of the energy storage box 1, so the pulleys on the first lever arm 123 and the third lever arm 126 act as fixed pulleys.

[0107] like Figure 5 , Figure 7 As shown, a pin is provided at the position where the second force arm 125 and the fourth force arm 128 are connected to the first bracket 122, and the second force arm 125 and the fourth force arm 128 can rotate around the pin. When the first side photovoltaic module 12 is unfolded, the traction rope pulls the second force arm 125 and the fourth force arm 128 upward, and the second force arm 125 and the fourth force arm 128 rotate upward around the pin. A limiting device is provided on the first bracket 122 corresponding to the second force arm 125 and the fourth force arm 128. When the second force arm 125 and the fourth force arm 128 hit the limiting device, they can no longer rotate, that is, a standing state occurs, and the standing state can be perpendicular to the top 18 of the energy storage box 1.

[0108] When the first side photovoltaic module 12 is folded, when the first bracket 122 touches the first side wall 11 of the energy storage box 1, the first side photovoltaic module 12 no longer rotates, and the traction rope no longer applies tension. The second lever 125 and the fourth lever 128 will naturally rotate downward under the action of gravity until they rotate to a vertical state or a state parallel to the first bracket 122. By completely releasing the second lever 125 and the fourth lever 128 to a vertical state, the width of the energy storage box 1 can be avoided from being expanded, which is conducive to the transportation of the wingspan photovoltaic energy storage system.

[0109] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, a first pulley is arranged at the upper end of the first lever arm 123, a second pulley is arranged at the lower end (not visible in the figure, the axial direction of the second pulley is perpendicular to the first pulley, and the second pulley plays the role of steering support for the first traction rope), a third pulley is arranged at the upper end of the second lever arm 125, and the first traction rope 124 passes through the third pulley, the first pulley, and the second pulley in sequence, and then connects to the driving device 121; the first pulley and the second pulley are equivalent to fixed pulleys, and the third pulley is equivalent to a movable pulley;

[0110] A fourth pulley 131 is provided at the upper end of the third force arm 126, and a fifth pulley is provided at the lower end (not visible in the figure, the axial direction of the fifth pulley is perpendicular to the fourth pulley, and the fifth pulley serves as a steering support for the second traction rope), and a sixth pulley 132 is provided at the upper end of the fourth force arm 128. The second traction rope 127 passes around the sixth pulley 132, the fourth pulley 131, and the fifth pulley in sequence, and then is connected to the driving device 121; the fourth pulley 131 and the fifth pulley are equivalent to fixed pulleys, and the sixth pulley 132 is equivalent to a movable pulley.

[0111] The fixed pulley and the movable pulley form a pulley block between the force arms, which can save the traction force applied by the driving device 121 to the first bracket 122 and avoid the driving device 121 from bearing a large load. The number of fixed pulleys and movable pulleys can also be increased to form a more effective pulley block.

[0112] In one embodiment, the driving device 121 synchronously reels and releases the first traction rope 124 and the second traction rope 127 to ensure synchronous rotation of the front and rear sides of the first bracket 122 and avoid imbalance during the folding and unfolding process of the first side photovoltaic module 12.

[0113] The driving device 121 may include two reeling wheels, which are coaxially arranged, one reeling wheel is connected to the second end of the first traction rope 124, and the other reeling wheel is connected to the second end of the second traction rope 127. The first traction rope 124 and the second traction rope 127 are wound around the reeling wheels in opposite directions, and the first traction rope 124 and the second traction rope 127 do not interfere with each other. When the motor rotates in one direction, the first traction rope 124 and the second traction rope 127 can be synchronously reeled or released.

[0114] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the first side photovoltaic module 12 further includes:

[0115] Two support rods are respectively arranged on the second side (front side) and the fourth side (rear side) of the first bracket 122. When repairing the first side photovoltaic module 12, the first end of the support rod is supported on the first bracket 122, and the second end of the support rod is supported on the first side wall 11 of the energy storage box 1. Figure 3 1 shows a first support rod 129 located at a fourth side of the first bracket 122. The first end of the support rod can be hinged to the first bracket 122 and can be rotated to a suitable angle when supporting the first bracket 122.

[0116] By supporting the first bracket 122 through the support rod, system maintenance can be carried out without starting the driving device 121, and safety is guaranteed.

[0117] In one embodiment, if Figure 1 , Figure 3 , Figure 5 As shown, a plurality of legs 134 are provided on the third side of the first bracket 122, and the first bracket 122 is supported on the first side wall 11 of the energy storage box 1 by the legs 134. By providing the legs 134, the first bracket 122 does not need to contact the first side wall 11 of the energy storage box 1, so as to avoid the first bracket 122 being unable to rotate into place when the first side photovoltaic module 12 is folded.

[0118] In one embodiment, if Figure 1 , Figure 3 , Figure 8 , Fig. 9 As shown, the wingspan photovoltaic energy storage system also includes:

[0119] The top photovoltaic module 14 is arranged on the top 18 of the energy storage box 1. The top photovoltaic module 14 is connected to the energy storage device 19. The generated electric energy is transmitted to the energy storage device 19 for storage. The top photovoltaic module 14 makes full use of the structure of the energy storage box 1 to increase the photovoltaic area and improve the photovoltaic conversion capacity of the exhibition photovoltaic energy storage system.

[0120] The top photovoltaic module 14 remains fixed on the top 18 of the energy storage box 1 and does not affect the folding and unfolding of the first side photovoltaic module 12 and the second side photovoltaic module 16 .

[0121] In one embodiment, if Figure 3 , Figure 4 As shown, the top photovoltaic module 14 includes:

[0122] A second photovoltaic panel 141, the second photovoltaic panel 141 can perform photovoltaic conversion to generate electrical energy;

[0123] The second bracket 142 is fixedly connected to the top 18 of the energy storage box 1 , and the second photovoltaic panel 141 is arranged on the second bracket 142 . The width H of the second bracket 142 is greater than the width L of the energy storage box 1 .

[0124] The second bracket 142 is a frame structure, which can be a steel structure frame made of rectangular pipes, capable of supporting the second photovoltaic panel 141. The second bracket 142 can be fixedly connected to the top 18 of the energy storage box 1 by welding or bolting. The installation of the second photovoltaic panel 141 also requires leaving installation space for the drive device 121 and the drive device 161.

[0125] The second bracket 142 can constitute the installation basis of the first side photovoltaic module 12 and the second side photovoltaic module 16 . The width H of the second bracket 142 is greater than the width L of the energy storage box 1 , and can leave folding space for the first side photovoltaic module 12 and the second side photovoltaic module 16 .

[0126] In one embodiment, if Figure 3 , Figure 4 As shown, the first bracket 122 is hinged to the second bracket 142 and may be connected via a plurality of hinges 133. The first force arm 123 and the third force arm 126 are fixed to the second bracket 142 and may be fixedly connected to the top 18 of the energy storage box 1 via welding or bolting.

[0127] like Fig.10 As shown, the second side photovoltaic module 16 has the same structure as the first side photovoltaic module 12 and is symmetrically arranged on the side of the energy storage box 1. The structure of the second side photovoltaic module 16 can refer to the first side photovoltaic module 12 and will not be described in detail here.

[0128] In one embodiment, if Fig.11 As shown, the wingspan photovoltaic energy storage system also includes:

[0129] A control device, the control device is connected to the drive device 121 and can control the operation of the drive device 121. The control device is also connected to the drive device 161 and can control the operation of the drive device 161. The control device can be composed of an EMS control system;

[0130] The light-chasing sensor is connected to the control device. According to the light data detected by the light-chasing sensor, the control device controls the driving device 121 to operate to adjust the light-receiving angle of the first side photovoltaic module 12 after unfolding, and controls the driving device 161 to operate to adjust the light-receiving angle of the second side photovoltaic module 16 after unfolding.

[0131] By setting a light tracking sensor, the first side photovoltaic module 12 and the second side photovoltaic module 16 can adjust their angles in real time according to the changes in sunlight. For example, when the sun moves, the control device controls the drive device 121 to operate to adjust the angle of the first side photovoltaic module 12, and controls the drive device 161 to operate to adjust the angle of the second side photovoltaic module 16, so as to obtain the optimal angle for receiving sunlight, maximize the illumination area, and increase photovoltaic power generation.

[0132] In one embodiment, if Fig.11 As shown, the wingspan photovoltaic energy storage system also includes:

[0133] A control device, the control device is connected to the drive device 121 and can control the operation of the drive device 121. The control device is also connected to the drive device 161 and can control the operation of the drive device 161. The control device can be composed of an EMS control system;

[0134] The wind speed sensor is connected to the control device. According to the wind data detected by the wind speed sensor, the control device controls the driving device 121 to operate to adjust the unfolding state of the first side photovoltaic module 12, and controls the driving device 161 to operate to adjust the unfolding state of the second side photovoltaic module 16.

[0135] By setting a wind speed sensor, the first side photovoltaic module 12 and the second side photovoltaic module 16 can adjust their angles in real time according to the change of the ambient wind force. For example, when the wind force is strong, the control device controls the driving device 121 to operate to adjust the angle of the first side photovoltaic module 12, and controls the driving device 161 to operate to adjust the angle of the second side photovoltaic module 16, so as to prevent the wingspan photovoltaic energy storage system from being damaged by strong wind.

[0136] It should be noted that the control device can independently control the driving device 121 and the driving device 161 , so the first side photovoltaic module 12 and the second side photovoltaic module 16 can have different unfolding states and different folding states.

[0137] The structure of the energy storage box 1 is similar to that of a container. Other structures of the energy storage box 1 may refer to the prior art, such as corner columns, top corner pieces, bottom corner pieces, end plates, box doors, etc., which will not be described in detail here.

[0138] like Fig.12The working principle diagram of the photovoltaic panel is shown. The photovoltaic panel generates direct current, which needs to be adjusted by an inverter and a converter and then stored. The first photovoltaic panel 120, the first photovoltaic panel 160, and the second photovoltaic panel 141 all work according to this principle.

[0139] A wingspan photovoltaic energy storage system according to the present invention has the following advantages:

[0140] (1) The wingspan photovoltaic energy storage system integrates the photovoltaic system and the energy storage system into one energy storage box, which can be transported as a whole, reducing the installation cost on the project site. Photovoltaic panels are installed on the top and both sides of the energy storage box, making full use of the illumination area of ​​the energy storage box itself. The combination of photovoltaic panels and energy storage boxes realizes the rational use of solar energy resources. The electricity generated by the photovoltaic system supplements the auxiliary power consumption of the energy storage system, improving the output efficiency of the energy storage box.

[0141] (2) The use of light tracking sensors, wind speed sensors, motor traction mechanisms, traction ropes and pulley assemblies can enable photovoltaic panels to change the lighting angle of the photovoltaic panels according to seasonal time or solar radiation angle, thereby achieving solar power generation with maximum efficiency. The use of motor traction mechanisms can realize automatic opening and automatic wingspan angle adjustment of photovoltaic panels, and can also be automatically folded up in typhoon weather, reducing personnel operations, reducing labor costs, and being safer and more stable.

[0142] (3) A pulley arm device is installed at the lower end of the photovoltaic panel wingspan bracket. When the photovoltaic panel is not in use, the arm device is parallel to the photovoltaic panel due to gravity and will not protrude from the photovoltaic panel wingspan bracket to affect transportation. When the photovoltaic panel is unfolded, the arm device is automatically lifted up perpendicular to the photovoltaic panel due to traction force, increasing the traction mechanism arm, preventing the traction rope from being in the same direction as the photovoltaic panel wingspan bracket arm, and reducing the traction force.

[0143] (4) Support points for maintenance support rods are set on the four outer corner columns of the energy storage box. When the energy storage box needs to be repaired, support points for the support rods can be provided to facilitate maintenance by the staff.

[0144] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0145] In understanding the scope of the present invention, the term "comprise" and its derivatives as used herein are intended to be open terms, which specify the existence of recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "include", "have" and their derivatives.

[0146] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0147] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment individually or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0148] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims

1. A wingspan photovoltaic energy storage system, characterized in that: include: An energy storage box, wherein an energy storage device is arranged inside the energy storage box; At least two side photovoltaic modules, the two side photovoltaic modules are symmetrically arranged on the sides of the energy storage box, and the side photovoltaic modules include a pulley device, which is used to fold and unfold on the side of the energy storage box; The side photovoltaic module is connected to the energy storage device, and the generated electric energy is transmitted to the energy storage device for storage.

2. The wingspan photovoltaic energy storage system according to claim 1, characterized in that: The side photovoltaic module also includes: a first photovoltaic panel, the first photovoltaic panel being capable of performing photovoltaic conversion to generate electrical energy; A first bracket, wherein a first side of the first bracket is hinged to the top of the energy storage box, the first photovoltaic panel is arranged on the first bracket, the pulley device is connected to the first bracket, and the first bracket is driven by the pulley device to fold and unfold on the side of the energy storage box.

3. The wingspan photovoltaic energy storage system according to claim 2, characterized in that: The pulley device comprises: A plurality of force arms, the force arms are respectively arranged on the top of the energy storage box and the first bracket, and each force arm is provided with a pulley; A traction rope, the traction rope is wound around the pulley, and a first end of the traction rope is connected to any one of the force arms; A driving device is arranged on the top of the energy storage box, the second end of the traction rope is connected to the driving device, and the driving device pulls up or puts down the first bracket through the traction rope.

4. The wingspan photovoltaic energy storage system according to claim 3, characterized in that: The pulley device comprises: At least four lever arms, namely a first lever arm, a second lever arm, a third lever arm and a fourth lever arm; The first force arm and the third force arm are arranged on the top of the energy storage box, the second force arm and the fourth force arm are arranged on the first bracket, the first force arm and the second force arm are located on the third side of the first bracket, the third force arm and the fourth force arm are located on the fourth side of the first bracket, each of the force arms is provided with a pulley, a first traction rope is provided between the first force arm and the second force arm, and a second traction rope is provided between the third force arm and the fourth force arm.

5. The wingspan photovoltaic energy storage system according to claim 4, characterized in that: The first end of the first traction rope is connected to the first lever arm or the second lever arm, the second end of the first traction rope is connected to the driving device, the first end of the second traction rope is connected to the third lever arm or the fourth lever arm, the second end of the second traction rope is connected to the driving device, and the driving device pulls up or lowers the first bracket through the first traction rope and the second traction rope.

6. The wingspan photovoltaic energy storage system according to claim 5, characterized in that: The first lever arm or the second lever arm is provided with a first lock to fix the first end of the first traction rope, and the third lever arm or the fourth lever arm is provided with a second lock to fix the first end of the second traction rope.

7. The wingspan photovoltaic energy storage system according to claim 5, characterized in that: The first force arm and the third force arm are fixedly connected to the top of the energy storage box and maintain a standing state. The second force arm and the fourth force arm are hinged to the first bracket. When the side photovoltaic module is unfolded, the second force arm and the fourth force arm are in a standing state on the first bracket. When the side photovoltaic module is folded, the second force arm and the fourth force arm are in a laid-down state on the first bracket.

8. The wingspan photovoltaic energy storage system according to claim 5, characterized in that: The first arm has a first pulley at its upper end and a second pulley at its lower end, and the second arm has a third pulley at its upper end. The first traction rope is passed through the third pulley, the first pulley, and the second pulley in sequence, and then connected to the driving device. A fourth pulley is provided at the upper end of the third lever arm, a fifth pulley is provided at the lower end, a sixth pulley is provided at the upper end of the fourth lever arm, and the second traction rope is passed around the sixth pulley, the fourth pulley, and the fifth pulley in sequence, and then connected to the driving device.

9. The wingspan photovoltaic energy storage system according to claim 8, characterized in that: The driving device synchronously reels in and releases the first traction rope and the second traction rope.

10. The wingspan photovoltaic energy storage system according to claim 2, characterized in that: The side photovoltaic module also includes: Two support rods are respectively arranged on the second side and the fourth side of the first bracket. When repairing the side photovoltaic module, the first end of the support rod is supported on the first bracket, and the second end of the support rod is supported on the side wall of the energy storage box.

11. The wingspan photovoltaic energy storage system according to claim 2, characterized in that: A plurality of legs are provided on the third side of the first bracket, and the first bracket is supported on the side wall of the energy storage box by the legs.

12. The wingspan photovoltaic energy storage system according to claim 4, characterized in that: Also includes: A top photovoltaic module is disposed on the top of the energy storage box, and the top photovoltaic module is connected to the energy storage device, and the generated electric energy is transmitted to the energy storage device for storage.

13. The wingspan photovoltaic energy storage system according to claim 12, characterized in that: The top photovoltaic module comprises: a second photovoltaic panel, the second photovoltaic panel being capable of performing photovoltaic conversion to generate electrical energy; The second bracket is fixedly connected to the top of the energy storage box, the second photovoltaic panel is arranged on the second bracket, and the width H of the second bracket is greater than the width L of the energy storage box.

14. The wingspan photovoltaic energy storage system according to claim 13, characterized in that: The first bracket is hinged to the second bracket, and the first force arm and the third force arm are fixed on the second bracket.

15. The wingspan photovoltaic energy storage system according to claim 3, characterized in that: Also includes: A control device, the control device is connected to the driving device and can control the operation of the driving device; A light-chasing sensor is connected to the control device. According to the light data detected by the light-chasing sensor, the control device controls the operation of the driving device to adjust the light receiving angle of the side photovoltaic module after it is unfolded.

16. The wingspan photovoltaic energy storage system according to claim 3, characterized in that: Also includes: A control device, the control device is connected to the driving device and can control the operation of the driving device; A wind speed sensor is connected to the control device. According to wind data detected by the wind speed sensor, the control device controls the operation of the driving device to adjust the deployment state of the side photovoltaic module.

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