Photovoltaic module and energy storage robot

Abstract

The embodiment of the invention provides a photovoltaic module and an energy storage robot, and the photovoltaic module comprises a storage base; the plurality of first photovoltaic panels are in transmission connection with the storage base through a first linear transmission mechanism, and the first photovoltaic panels do linear motion relative to the storage base; the at least one second photovoltaic panel is in transmission connection with the first photovoltaic panel through a second linear transmission mechanism, and under the condition that the first photovoltaic panel does linear motion relative to the storage base, the second photovoltaic panel does linear motion relative to the first photovoltaic panel; wherein in the process that the first photovoltaic panel moves towards the first limit extending position relative to the storage base, the second photovoltaic panel moves towards the second limit extending position relative to the first photovoltaic panel, and when the first photovoltaic panel is located at the first limit extending position, the second photovoltaic panel is located at the second limit extending position. According to the technical scheme, a larger unfolding area and higher power generation capacity are obtained in a limited storage space.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module technology, and more specifically, to a photovoltaic module and an energy storage robot. Background Technology

[0002] Currently, photovoltaic (PV) modules are widely used in vehicle power supply, mobile power supplies, outdoor emergency power supply, and distributed power generation because they can convert solar energy into electrical energy. As application scenarios increasingly demand larger deployment areas, portability, and structural reliability, deployable PV modules, which can achieve a larger light-receiving area within limited installation space, are gaining attention. In related technologies, deployable PV modules typically employ a folding hinge structure. However, this requires significant space for unfolding and results in a large stacking thickness when folded. Furthermore, the hinge area experiences long-term alternating loads and stress concentration, making it prone to loosening, deformation, or fatigue damage, affecting the flatness of the unfolded surface and its service life. Summary of the Invention

[0003] The present invention aims to at least solve the technical problem of excessive space required for solar panel deployment in the prior art or related technologies.

[0004] In view of this, embodiments of the present invention provide a photovoltaic module.

[0005] An embodiment of the present invention provides an energy storage robot.

[0006] To achieve the above objectives, embodiments of the present invention provide a photovoltaic module, comprising: a storage base; a plurality of first photovoltaic panels, which are connected to the storage base via a first linear transmission mechanism, wherein the first photovoltaic panels move linearly relative to the storage base; and at least one second photovoltaic panel, which is connected to the first photovoltaic panels via a second linear transmission mechanism, wherein when the first photovoltaic panel moves linearly relative to the storage base, the second photovoltaic panel moves linearly relative to the first photovoltaic panel; wherein, during the process of the first photovoltaic panel moving relative to the storage base toward a first extreme extension position, the second photovoltaic panel moves relative to the first photovoltaic panel toward a second extreme extension position, and when the first photovoltaic panel is at the first extreme extension position, the second photovoltaic panel is at the second extreme extension position.

[0007] The photovoltaic module proposed in this invention has a two-stage telescopic function. When the entire system is in the retracted state, all the first and second photovoltaic panels are basically within the outer shape of the storage base or close to it. The overall volume is small and occupies little space, making it convenient for transportation, storage or protection.

[0008] During the unfolding process, the first photovoltaic panel, driven by the first linear transmission mechanism, moves linearly relative to the storage base, gradually extending outward from the storage position until it reaches the first limit extension position. At the same time, at least one second photovoltaic panel, driven by the second linear transmission mechanism, moves linearly relative to the corresponding first photovoltaic panel and eventually reaches the second limit extension position.

[0009] After all the panels are fully deployed, each first photovoltaic panel extends from the storage base to its first maximum extension position, and each second photovoltaic panel extends relative to its respective first photovoltaic panel to its second maximum extension position. The overall usable photovoltaic area is greatly increased, which is equivalent to pulling out two levels of panels from a base.

[0010] In this solution, by achieving a smooth, controllable, and synchronous unfolding of photovoltaic modules from a compact storage state to a secondary large-stroke unfolding state, a larger unfolding area and higher power generation capacity can be obtained within a limited storage space.

[0011] In some technical solutions, optionally, the first linear transmission mechanism includes: a drive motor, disposed on the storage base, the drive shaft of the drive motor having a drive gear; and a driven rack, disposed on the frame of the first photovoltaic panel, the driven rack meshing with the drive gear; wherein, the drive motor rotates, driving the drive gear to rotate, so that the first photovoltaic panel moves linearly back and forth relative to the storage base.

[0012] In this design, the driven rack is fixed to the frame of the first photovoltaic panel. When the first photovoltaic panel moves, the driven rack moves along with it. The drive gear meshes with the driven rack. When the drive gear rotates, it pushes / pulls the rack through its tooth surface, causing the rack to move in a straight line. The first photovoltaic panel moves accordingly. Since the driven rack is fixed to the frame of the first photovoltaic panel, any rack displacement directly becomes the displacement of the entire first photovoltaic panel.

[0013] In some technical solutions, optionally, the first linear transmission mechanism is located at both ends of the storage base in the first direction, and the first linear transmission mechanism is located at both ends of the storage base in the second direction; wherein the first direction and the second direction are perpendicular to each other.

[0014] In this technical solution, by arranging a first linear transmission mechanism at the two mutually perpendicular ends of the storage base, multiple first photovoltaic panels can be driven and guided around (or on multiple sides) the storage base, thereby improving the uniformity of force and motion stability during the overall unfolding / retraction process, and adapting to the arrangement of multiple first photovoltaic panels in different directions, providing a more stable and controllable foundation for the entire two-stage linear unfolding system.

[0015] In some technical solutions, the second linear transmission mechanism may optionally include: a fixed pulley disposed on a receiving base; a pulley block including a first pulley and a second pulley disposed at both ends of the first photovoltaic panel; a transmission component surrounding the fixed pulley, the first pulley, and the second pulley; and a connecting component sleeved outside the transmission component and connected to the transmission component, wherein the connecting component is disposed on the frame of the second photovoltaic panel.

[0016] In this scheme, the drive motor drives the drive gear, which meshes with the driven rack on the frame of the first photovoltaic panel. The first photovoltaic panel moves linearly back and forth relative to the storage base, extending towards the first limit extension position and then retracting towards the storage position.

[0017] The first and second pulleys are located at both ends of the first photovoltaic panel and move together with the first photovoltaic panel. The fixed pulley is located on the storage base and has a relative displacement with the first and second pulleys.

[0018] The transmission component is wound around a fixed pulley, a first pulley, and a second pulley. When the first photovoltaic panel moves, the path of the transmission component between the pulleys changes, with some segments becoming longer and some segments becoming shorter. In order to keep the total length of the transmission component constant, the transmission component will slide in each pulley.

[0019] The connector is sleeved outside the transmission component and is connected to the transmission component. When the transmission component slides relative to the first photovoltaic panel due to its movement, the connector is pulled and moved.

[0020] The connector is located on the frame of the second photovoltaic panel, so the displacement of the connector is directly transmitted to the second photovoltaic panel. During the movement of the first photovoltaic panel relative to the storage base, the second photovoltaic panel moves synchronously or according to the design ratio relative to the first photovoltaic panel. Finally, when the first photovoltaic panel reaches the first limit extension position, the second photovoltaic panel reaches the second limit extension position.

[0021] The fixed pulleys provide a fixed reference relative to the storage base. The pulley block, including a first pulley and a second pulley, moves with the first photovoltaic panel, guiding the transmission component to form a variable geometric path. The transmission component winds between the fixed pulleys and the pulley block, converting the motion of the first photovoltaic panel into linear transmission along the path. A connecting component is sleeved around and connected to the transmission component, and is also located on the frame of the second photovoltaic panel, converting the displacement of the transmission component into linear motion of the second photovoltaic panel. It can be understood that this second linear transmission mechanism allows the second photovoltaic panel to automatically unfold and retract without a separate drive motor, relying solely on the motion of the first photovoltaic panel, perfectly corresponding to the overall design goal of "two-stage unfolding and retraction."

[0022] In some technical solutions, the pulley system is optionally located on the frame of the first photovoltaic panel at both ends of the first direction of the receiving base.

[0023] In this technical solution, among all the first photovoltaic panels, the first photovoltaic panels located at both ends of the first direction of the storage base are selected as the bearing plates for the secondary unfolding transmission; the pulley group is installed on the frame of these first photovoltaic panels, so that the second linear transmission mechanism is arranged close to the array boundary, the transmission path is simple and the space is used rationally; the primary movement of the first photovoltaic panel and the secondary movement of the second photovoltaic panel are linked on the same boundary line; the secondary unfolding mechanism can be arranged symmetrically at the left and right ends to improve the overall structural stability and unfolding effect.

[0024] In some technical solutions, optionally, a fixed photovoltaic panel is provided on the upper surface of the storage base, a pulley group is provided on the side of the first photovoltaic panel away from the upper surface, and a driven rack is provided on the side of the first photovoltaic panel facing the upper surface.

[0025] In this technical solution, the photovoltaic panel is fixed on top in three-dimensional space, the first linear transmission mechanism is on the upper side, and the pulley group of the second linear transmission mechanism is on the lower side, thus completing the precise positioning of the two linear transmission mechanisms and the photovoltaic panel assembly, with each occupying a different side.

[0026] In some technical solutions, the second linear transmission mechanism may optionally include a connecting seat, which is disposed on the receiving base, and the two movable ends of the transmission component are respectively connected to the connecting seat.

[0027] In this technical solution, the two ends of the transmission component are fixed together on the connecting seat, and the connecting seat is fixed on the storage base, forming a transmission component path with the storage base as the reference and the endpoints controlled. With the help of fixed pulleys, pulley blocks and connecting parts, the movement of the first photovoltaic panel is reliably converted into the linear movement of the second photovoltaic panel through the geometric redistribution of the transmission component, and provides clear and concentrated structural points for the tensioning, length adjustment and structural stress of the transmission component.

[0028] In some technical solutions, optionally, the first photovoltaic panel and the second photovoltaic panel are moved to a storage position, the first photovoltaic panel and the second photovoltaic panel are stacked, and the first photovoltaic panel is located above the second photovoltaic panel; and / or the first photovoltaic panel and the second photovoltaic panel are arranged in parallel.

[0029] In this design, in the stowed state, the first photovoltaic panel is on top and the second photovoltaic panel is on the bottom, stacked and parallel, resulting in a compact arrangement. In the stowed and / or unfolded states, the two panels remain parallel to each other, ensuring that the photovoltaic light-receiving surface is aligned in a uniform direction and that the structural movement is simple and consistent.

[0030] In some technical solutions, optionally, the second photovoltaic panel is disposed inside the first photovoltaic panel in a direction perpendicular to the extension direction of the second photovoltaic panel.

[0031] In this design, whether viewed from above or from the side, the second photovoltaic panel is contained within the area defined by the first photovoltaic panel, forming a compact and orderly nested relationship. Because the second photovoltaic panel is located inside the first photovoltaic panel in the horizontal direction, its horizontal outline is mainly determined by the first photovoltaic panel when it is stored. The second photovoltaic panel will not protrude additionally in the horizontal direction. This allows for strict control of the overall module's horizontal dimensions in the stored state, making it convenient for installation in scenarios with limited width (such as car roofs, cabinet tops, etc.).

[0032] An embodiment of the present invention provides an energy storage robot, including a mobile base; the aforementioned photovoltaic module is rotatably connected to the mobile base.

[0033] The energy storage robot includes the aforementioned photovoltaic modules. Since the energy storage robot includes any of the aforementioned photovoltaic modules, it has the beneficial effects of any of the aforementioned photovoltaic modules, which will not be elaborated here.

[0034] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1 A schematic diagram of a photovoltaic module according to an embodiment of the present invention is shown;

[0036] Figure 2 A schematic diagram of a photovoltaic module according to an embodiment of the present invention is shown;

[0037] Figure 3 A schematic diagram of a photovoltaic module according to an embodiment of the present invention is shown;

[0038] Figure 4 A schematic diagram of a photovoltaic module according to an embodiment of the present invention is shown;

[0039] Figure 5 A schematic diagram of the structure of an energy storage robot according to an embodiment of the present invention is shown.

[0040] Wherein, 1: photovoltaic module; 11: storage base; 12: first photovoltaic panel; 13: second photovoltaic panel; 14: first linear transmission mechanism; 141: drive motor; 142: drive shaft; 143: drive gear; 144: driven rack; 15: second linear transmission mechanism; 151: fixed pulley; 152: pulley block; 1521: first pulley; 1522: second pulley; 153: transmission component; 154: connector; 155: connector; 16: fixed photovoltaic panel;

[0041] 2: Energy storage robot; 21: Mobile base. Detailed Implementation

[0042] To better understand the above-described objectives, features, and advantages of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0044] The following reference Figures 1 to 5 Some embodiments of the present invention are described.

[0045] like Figure 1 and Figure 2 As shown, this embodiment provides a photovoltaic module 1 with a two-stage telescopic function. When the entire system is in the retracted state, all the first photovoltaic panels 12 and the second photovoltaic panels 13 are basically within the outer shape of the storage base 11 or close to it. The overall volume is small and occupies little space, making it convenient for transportation, storage or protection.

[0046] During the unfolding process, the first photovoltaic panel 12, driven by the first linear transmission mechanism 14, moves linearly relative to the storage base 11, gradually extending outward from the storage position until it reaches the first limit extension position. At the same time, at least one second photovoltaic panel 13, driven by the second linear transmission mechanism 15, moves linearly relative to the corresponding first photovoltaic panel 12 and eventually reaches the second limit extension position.

[0047] After all the panels are fully extended, each first photovoltaic panel 12 extends from the storage base 11 to the first limit extension position, and each second photovoltaic panel 13 extends relative to its respective first photovoltaic panel 12 to the second limit extension position. The overall usable photovoltaic area is greatly increased, which is equivalent to pulling out two levels of panels from a base.

[0048] In this solution, by achieving a smooth, controllable, and synchronous unfolding of photovoltaic module 1 from a compact storage state to a secondary large-stroke unfolding state, a larger unfolding area and higher power generation capacity can be obtained within a limited storage space.

[0049] Specifically, the photovoltaic module 1 includes a storage base 11, a first photovoltaic panel 12, a second photovoltaic panel 13, a first linear drive mechanism 14, and a second linear drive mechanism 15. The storage base 11 is the basic load-bearing structure and installation reference for the entire photovoltaic module 1, and it is also the main storage space for all movable photovoltaic panels, namely the first photovoltaic panel 12 and the second photovoltaic panel 13, when they are in the retracted state. Structurally, the storage base 11 provides support, guidance, and fixing points for the starting positions of multiple first photovoltaic panels 12, and it is also the mounting base for the first linear drive mechanism 14. At the same time, the storage base 11 also provides an installation position for the first linear drive mechanism 14, such as gears and racks, slide rails, synchronous pulleys, motors, etc., which can be assembled on the storage base 11.

[0050] When the components are retracted, the first photovoltaic panel 12 and the second photovoltaic panel 13 can be mostly or entirely contained within the outer shape of the housing base 11, reducing external impacts, contamination or damage during transportation, storage and use.

[0051] In terms of spatial layout, the storage base 11 is generally located at the bottom or innermost part of the overall structure, serving as the starting reference plane for all linear movements. Multiple first photovoltaic panels 12 typically move in straight lines along one or more directions of the storage base 11, such as left-right or front-back.

[0052] Multiple first photovoltaic panels 12 are first layer unfoldable photovoltaic panels that can move linearly relative to the storage base 11. Each first photovoltaic panel 12 is connected to the storage base 11 through a first linear transmission mechanism 14.

[0053] The primary function of the first photovoltaic panel 12 is to complete the first stage of deployment through linear movement relative to the storage base 11. Extending from its fully retracted position to its first maximum extension position effectively stretches the photovoltaic array a certain length, providing a foundation for the deployment of the second photovoltaic panel 13. Furthermore, each first photovoltaic panel 12 also serves as the motion base for its corresponding second photovoltaic panel 13, which moves linearly relative to the first photovoltaic panel 12. In other words, the first photovoltaic panel 12 is not only a moving component relative to its own storage base 11 but also serves as the mounting carrier for the second linear transmission mechanism 15.

[0054] In its unfolded state, the first photovoltaic panel 12 bears its own weight, as well as the weight of the second photovoltaic panel 13 and environmental loads (wind, rain, snow). Through its connection with the storage base 11, a complete force path is formed from the second photovoltaic panel 13, the first photovoltaic panel 12, the storage base 11, and the entire installation platform.

[0055] Optionally, the multiple first photovoltaic panels 12 can be arranged side by side relative to the storage base 11, for example, multiple panels can be arranged side by side in the horizontal direction and slide out together; or they can be arranged in series, like drawers extending one layer at a time in the same straight line. Of course, regardless of the arrangement, each first photovoltaic panel 12 must be able to move in a straight line relative to the storage base 11 in a predetermined direction and accurately reach its respective first limit extension position.

[0056] The first linear transmission mechanism 14 is a transmission connection mechanism between the receiving base 11 and multiple first photovoltaic panels 12. It is used to drive the first photovoltaic panels 12 to complete linear motion relative to the receiving base 11 and accurately reach the first limit extension position, realizing the linear extension and retraction of the first photovoltaic panels 12. Specifically, the first linear transmission mechanism 14 converts the rotational motion generated by the power source, such as a motor, into the linear motion of the first photovoltaic panels 12. For example, when a structure of gear rack and synchronous belt pulley is used, the motor and gear are fixed on the receiving base 11, the rack is fixed to or follows the first photovoltaic panels 12, and the rotation of the gear drives the rack to move linearly, and the first photovoltaic panels 12 follow to realize the first stage of extension. The synchronous belt pulley can be used for synchronous motion between multiple first photovoltaic panels 12 or to transmit speed and torque.

[0057] The movement direction of the first photovoltaic panel 12 is limited to a single straight line by a guide rail, slider, or support structure to avoid swaying and deviation. The maximum extension distance of the first photovoltaic panel 12, i.e., the first limit extension position, is controlled by a limit switch, an extreme position stop, or the length of a rack and pinion.

[0058] The stroke and phase of the first linear drive mechanism 14 provide a trigger or reference basis for the action of the second linear drive mechanism 15, so that the second photovoltaic panel 13 can start linear motion relative to the first photovoltaic panel 12 at the appropriate time.

[0059] One end of the first linear transmission mechanism 14 is fixedly connected to or installed on the storage base 11, and the other end is connected to each first photovoltaic panel 12 for transmission, so that power and displacement are transmitted to the first photovoltaic panel 12. The specific mechanism includes, but is not limited to: gear and rack meshing, synchronous belt and pulley cooperation, screw and nut structure, slide rail drag chain, etc.

[0060] At least one second photovoltaic panel 13 refers to a movable photovoltaic panel that is set on the basis of the first photovoltaic panel 12, and is a second-level unfolding unit that moves in a straight line relative to the first photovoltaic panel 12.

[0061] When the first photovoltaic panel 12 has extended a certain distance from the receiving base 11 or at the beginning of the extension of the first photovoltaic panel 12, the second photovoltaic panel 13 continues to extend outward relative to the first photovoltaic panel 12, forming a second stage of expansion. Finally, when the first photovoltaic panel 12 is at the first limit extension position, "the two photovoltaic panels are at the second limit extension position, and the overall expansion distance is superimposed, achieving a longer effective expansion length and a larger photovoltaic module 1 area."

[0062] By using at least one second photovoltaic panel 13, the power generation area when the system is deployed can be increased without significantly increasing the size of the storage base 11. This is suitable for scenarios that require a small storage volume but a large unfolded area, including but not limited to vehicle roof photovoltaics, mobile power stations, and foldable power stations.

[0063] Optionally, each first photovoltaic panel 12 corresponds to a second photovoltaic panel 13; or some first photovoltaic panels 12 are equipped with second photovoltaic panels 13; or even multiple photovoltaic panels are connected in series on the same first photovoltaic panel 12 to form a more complex multi-level expansion, but still maintain the definition of the second photovoltaic panel 13 level.

[0064] Each second photovoltaic panel 13 is installed and moves on the corresponding first photovoltaic panel 12, that is, it moves in a straight line relative to its own first photovoltaic panel 12. When initially stored, the second photovoltaic panel 13 is usually overlapped or partially overlapped with the first photovoltaic panel 12. When fully unfolded, it extends out from the edge of the first photovoltaic panel 12 to reach the second limit extension position.

[0065] The second linear transmission mechanism 15 serves as the transmission connection mechanism between the first photovoltaic panel 12 and the second photovoltaic panel 13. It is used to drive the second photovoltaic panel 13 to move linearly relative to the first photovoltaic panel 12, thereby achieving the linear extension and retraction of the second photovoltaic panel 13. It can be understood that during the operation of the overall system, when the first photovoltaic panel 12 begins or nearly completes its movement towards the first limit extension position, the second linear transmission mechanism 15 begins to drive the second photovoltaic panel 13 to extend towards the second limit extension position.

[0066] The action of the second linear transmission mechanism 15 and the first linear transmission mechanism 14 can be mechanically linked, for example, by using a gear and rack ratio, a synchronous belt pulley, etc., to ensure the sequence and synchronization of the two stages of development; or it can be a control linkage, such as two motors achieving sequential or synchronous action through control logic.

[0067] During the process of the first photovoltaic panel 12 moving toward the first limit extension position relative to the storage base 11, the second photovoltaic panel 13 moves toward the second limit extension position relative to the first photovoltaic panel 12, and the two are exactly corresponding at their respective limit positions.

[0068] By designing the stroke, such as the rack length, the effective length of the timing belt, and the slide rail stroke, the maximum extension distance of the second photovoltaic panel 13 can be limited, forming a stable and repeatable second limit extension position. Part of the second linear transmission mechanism 15 is fixed to the first photovoltaic panel 12, such as the drive motor 141, fixed gear, and fixed end guide rail; another part is connected to the second photovoltaic panel 13 for transmission, such as the rack, moving slider, and moving end timing belt; the entire mechanism moves with the first photovoltaic panel 12 relative to the receiving base 11, but the internal relative motion is the linear motion of the second photovoltaic panel 13 relative to the first photovoltaic panel 12.

[0069] The first limit extension position is the termination position of the linear movement of the first photovoltaic panel 12 relative to the storage base 11, that is, the maximum stroke endpoint of the first photovoltaic panel 12 in the extension direction. It limits the extension range of the first photovoltaic panel 12 to prevent overtravel from causing damage to the mechanism. At the same time, it provides a reference benchmark for the terminal position of the second photovoltaic panel 13. When the first photovoltaic panel 12 stops at the first limit extension position, the system can ensure that the second photovoltaic panel 13 also stops at the second limit extension position.

[0070] The second limit extension position is the end position of the linear movement of the second photovoltaic panel 13 relative to the first photovoltaic panel 12, that is, the maximum stroke endpoint of the second photovoltaic panel 13 in the extension direction. By limiting the maximum extension stroke of the second photovoltaic panel 13, excessive stress on the structure or its own detachment from the guide mechanism is avoided.

[0071] The second limit extension position cooperates with the first limit extension position to form the total length or total area of ​​the photovoltaic module 1 when it is finally unfolded.

[0072] It should be added that during the process of the first photovoltaic panel 12 moving toward the first limit extension position relative to the storage base 11, the second photovoltaic panel 13 moves toward the second limit extension position relative to the first photovoltaic panel 12, and when the first photovoltaic panel 12 is at the first limit extension position, the second photovoltaic panel 13 is at the second limit extension position.

[0073] The two-stage deployment is a process that is related in time and space. The system is designed to ensure that the second photovoltaic panel 13 reaches the second limit extension position at the same time the first photovoltaic panel 12 reaches the first limit extension position. The pace of the two-stage deployment is jointly constrained by the stroke ratio, transmission ratio or control strategy of the first linear transmission mechanism 14 and the second linear transmission mechanism 15.

[0074] In general, in the retracted state, both the first photovoltaic panel 12 and the second photovoltaic panel 13 are basically within the range of the storage base 11, with the first photovoltaic panel 12 in the most recessed position relative to the storage base 11, and the second photovoltaic panel 13 in the most recessed position relative to the first photovoltaic panel 12.

[0075] The unfolding process begins, the first linear transmission mechanism 14 is activated, and the first photovoltaic panel 12 begins to move linearly relative to the storage base 11, moving towards the first limit extension position; at the same time or shortly thereafter, through linkage or control, the second linear transmission mechanism 15 drives the second photovoltaic panel 13 to move linearly relative to the first photovoltaic panel 12, moving towards the second limit extension position.

[0076] The movement of the first photovoltaic panel 12 changes the overall position of the second linear transmission mechanism 15 in space; at the same time, the second photovoltaic panel 13 extends further on this basis, realizing a second extension of linear motion on the moving base; through mechanism or control, as the first photovoltaic panel 12 advances its stroke, the second photovoltaic panel 13 advances its stroke synchronously.

[0077] In the final unfolded state, the first photovoltaic panel 12 reaches the first limit extension position and stops moving further relative to the storage base 11; the second photovoltaic panel 13 reaches the second limit extension position and stops moving relative to the first photovoltaic panel 12; at this time, the entire photovoltaic module 1 reaches the maximum unfolded area and the maximum unfolded length, and is in the state most conducive to light collection and power generation.

[0078] By utilizing a two-stage linear deployment structure consisting of a storage base 11, a first photovoltaic panel 12, and a second photovoltaic panel 13, a large-area photovoltaic deployment can be achieved within a limited storage space. Through a first linear transmission mechanism 14 and a second linear transmission mechanism 15, a transmission chain is formed from the base to the first photovoltaic panel 12 and then to the second photovoltaic panel 13, ensuring the sequence, synchronization, and accuracy of the endpoint position of the two-stage deployment. The coordination between the first and second limit extension positions makes the final state of the system deployment clear, controllable, and easy to mechanically limit and lock, facilitating engineering implementation and reliability design.

[0079] In some embodiments, optionally, such as Figure 1 and Figure 3 As shown, the rotational motion of the motor mounted on the storage base 11 is converted into linear reciprocating movement of the first photovoltaic panel 12 relative to the storage base 11 through the combination of the drive motor 141, drive gear 143, and driven rack 144. When the drive motor 141 rotates forward, the first photovoltaic panel 12 is driven to extend outward and move towards the first limit extension position; when the drive motor 141 rotates in reverse, the first photovoltaic panel 12 is driven to retract inward and return to the storage position on one side of the storage base 11.

[0080] Specifically, the drive motor 141 is the power source of the first linear transmission mechanism 14. It is fixedly mounted on the storage base 11 and does not move with the first photovoltaic panel 12. The motor outputs rotational motion, which drives the "drive gear 143" to rotate through the drive shaft 142. The speed and torque of the motor determine the linear motion speed and load capacity of the first photovoltaic panel 12.

[0081] Optionally, the motor can work with a controller, limit switches, and sensors to stop rotating when the first photovoltaic panel 12 reaches the first limit extension position or retracted position, thereby achieving automatic control.

[0082] The drive motor 141 is fixed on the storage base 11, so that the storage base 11 itself serves as a fixed reference system. With the storage base 11 as the reference, the position of the drive shaft 142 and the position of the drive gear 143 of the drive motor 141 remain stable, providing a stable meshing position for the driven rack 144.

[0083] The drive gear 143 is mounted on the drive shaft 142 of the drive motor 141 and is an intermediate transmission element between the motor output and the linear motion of the rack. The drive gear 143 meshes with the driven rack 144, and through the meshing between the teeth, the rotational motion of the motor shaft is converted into the linear motion of the rack in the form of gear and rack transmission.

[0084] The number of teeth and diameter of the drive gear 143, in conjunction with the module and pitch of the driven rack 144, determine the moving speed of the first photovoltaic panel 12, thereby determining the positioning accuracy and controllability of the first photovoltaic panel 12.

[0085] Optionally, the drive gear 143 is fixed to the drive shaft 142 of the drive motor 141 by means of a key, expansion sleeve or thread, and rotates synchronously with the drive shaft 142; the tooth surface of the drive gear 143 meshes with the tooth surface of the driven rack 144 in a straight line direction, and the meshing line is generally parallel to the movement direction of the first photovoltaic panel 12.

[0086] The driven rack 144 is a linear toothed element fixed to the frame of the first photovoltaic panel 12 and moves together with the first photovoltaic panel 12. The movement of the driven rack 144 is the movement of the first photovoltaic panel 12. The driven rack 144 converts the rotation of the drive gear 143 into the linear motion of the first photovoltaic panel 12. When the drive gear 143 rotates, it meshes with the rack to push or pull the rack back.

[0087] Since the driven rack 144 is arranged in a straight line and meshes with the drive gear 143, the gear and rack combination constrains the direction of motion, causing the first photovoltaic panel 12 to move in a straight line along the direction of the driven rack 144. The rack can be made to a certain length, which determines the maximum linear stroke that the first photovoltaic panel 12 can extend. Combined with the limit switch and the stop, the first limit extension position is formed.

[0088] The driven rack 144 is arranged on one side frame of the first photovoltaic panel 12 along the direction of movement of the first photovoltaic panel 12, and the drive gear 143 can be arranged at the corresponding position of the housing base 11 and mesh with the rack on the frame. As the first photovoltaic panel 12 moves, the meshing point slides along the rack, but the gear position remains unchanged.

[0089] The drive motor 141 is fixed on the storage base 11, and the drive gear 143 is fixed on the drive shaft 142 of the drive motor 141. The entire combination of the drive motor 141 and the drive gear 143 is a rigid mounting unit that is stationary relative to the storage base 11, so that the transmission meshing position is always stable and the linear movement of the first photovoltaic panel 12 is relative to the fixed reference of the storage base 11.

[0090] The driven rack 144 is fixed to the frame of the first photovoltaic panel 12. When the first photovoltaic panel 12 moves, the driven rack 144 moves along with it. The drive gear 143 meshes with the driven rack 144. When the drive gear 143 rotates, it pushes / pulls the rack through the tooth surface, causing the rack to move in a straight line. The first photovoltaic panel 12 moves accordingly. The driven rack 144 is fixed to the frame of the first photovoltaic panel 12, and any rack displacement directly becomes the displacement of the entire first photovoltaic panel 12.

[0091] In some embodiments, the first direction and the second direction are optionally two orthogonal directions within the plane of the receiving base 11. For example, the first direction is the left-right direction, and the second direction is the front-back direction; or vice versa, as long as they are perpendicular to each other. These two directions together form the planar coordinate system of the receiving base 11, providing a directional reference for arranging the first linear transmission mechanism 14.

[0092] The first linear transmission mechanism 14 is located at both ends of the storage base 11 in the first direction. Specifically, when viewed along the first direction of the storage base 11, the storage base 11 has two opposite ends, namely the two sides. At each of these two ends, a set or one first linear transmission mechanism 14 is provided.

[0093] Assuming the first direction is left and right, a set of first linear transmission mechanisms 14 is arranged on the left edge and another set of first linear transmission mechanisms 14 is arranged on the right edge, so that the first linear transmission mechanisms 14 are arranged symmetrically or in pairs at the two ends of the first direction.

[0094] Looking along the second direction of the storage base 11, the storage base 11 also has two opposite ends in this direction, such as the front and rear sides; at these two ends, the first linear transmission mechanism 14 is also arranged. Assuming the second direction is the front-rear direction, then: a set of first linear transmission mechanisms 14 is arranged on the front edge; and another set of first linear transmission mechanisms 14 is arranged on the rear edge.

[0095] Each of the two ends along the first direction has a first linear drive mechanism 14; similarly, each of the two ends along the second direction also has a first linear drive mechanism 14. Because the first and second directions are perpendicular, these first linear drive mechanisms 14 are distributed around the periphery of the receiving base 11. In other words, the first linear drive mechanisms 14 are not only located on one side, but are arranged along the periphery of the receiving base 11 at the ends in two mutually perpendicular directions, allowing the first photovoltaic panel 12 to be driven at multiple points or distributed along multiple sides in its layout.

[0096] When the first photovoltaic panel 12 is driven or guided at different edges by multiple first linear transmission mechanisms 14, the force distribution of the photovoltaic panel during extension and retraction is more uniform, which can significantly reduce problems such as tilting, jamming, and twisting caused by unilateral driving, and improve the parallelism and stability of the first photovoltaic panel 12 when it moves linearly back and forth relative to the storage base 11.

[0097] A first linear drive mechanism 14 is arranged at both ends in a first direction to drive or guide a plurality of first photovoltaic panels 12 arranged along the first direction. A first linear drive mechanism 14 is also arranged at both ends in a second direction to drive or guide a plurality of first photovoltaic panels 12 arranged along the second direction. Regardless of whether the first photovoltaic panels 12 are arranged along the first direction, the second direction, or a combination of both directions, a corresponding first linear drive mechanism 14 can provide power and guidance.

[0098] If the system contains a large-sized photovoltaic array or multiple first photovoltaic panels 12 that need to operate synchronously, a first linear transmission mechanism 14 is arranged at both ends of the first direction. Synchronous linear motion in a large span direction can be achieved by driving both sides together. If a first linear transmission mechanism 14 is arranged at both ends of the second direction, similar synchronous control can be achieved in another orthogonal direction.

[0099] When there are driving / guiding points on four or more sides, it is easier to maintain the attitude stability and overall synchronization of large-size photovoltaic arrays during the expansion and contraction process.

[0100] Optionally, multiple drive motors 141 can be installed at different ends to drive different first photovoltaic panels 12 or different sides of the same first photovoltaic panel 12, or the power can be transmitted from one drive motor 141 to both ends through a synchronous shaft, synchronous belt, etc., to achieve synchronization. Because the first linear transmission mechanism 14 is arranged at both ends in two mutually perpendicular directions, it is necessary to ensure that the relative positions of these mechanisms are accurate to avoid affecting the linear motion trajectory of the first photovoltaic panel 12 due to installation errors.

[0101] In summary, this solution arranges the first linear transmission mechanism 14 at the two mutually perpendicular ends of the storage base 11, so that multiple first photovoltaic panels 12 can be driven and guided around (or on multiple sides) the storage base 11, thereby improving the uniformity of force and motion stability during the overall unfolding / retraction process, and adapting to the arrangement of multiple first photovoltaic panels 12 in different directions, providing a more stable and controllable foundation for the entire two-stage linear unfolding system.

[0102] In some embodiments, optionally, such as Figure 4 As shown, while the first photovoltaic panel 12 moves linearly relative to the storage base 11, the second linear transmission mechanism 15, through the cooperation of the fixed pulley 151, pulley group 152, transmission component 153, and connecting component 154, enables the second photovoltaic panel 13 to move linearly relative to the first photovoltaic panel 12, thereby realizing the two-stage unfolding or retraction of the second photovoltaic panel 13.

[0103] Specifically, the fixed pulley 151 is fixed to the storage base 11 and remains stationary; the first pulley 1521 and the second pulley 1522 move together with the first photovoltaic panel 12; the transmission component 153 spans the fixed pulley 151, the first pulley 1521, and the second pulley 1522 to form a flexible loop that can slide relative to each other; the connecting component 154 is fixed to the frame of the second photovoltaic panel 13, and at the same time, it is sleeved on the outside of the transmission component 153 and connected to the transmission component 153, so the linear motion of the second photovoltaic panel 13 is connected to this transmission component 153; when the first photovoltaic panel 12 moves, the position of the pulleys changes, and the transmission component 153 moves relative to each pulley, driving the connecting component 154 to move together, thereby driving the second photovoltaic panel 13 to move linearly relative to the first photovoltaic panel 12.

[0104] When the first photovoltaic panel 12 moves, the second photovoltaic panel 13 is passively linked, extending or retracting based on the first photovoltaic panel 12, so that when the first photovoltaic panel 12 moves in a straight line relative to the storage base 11, the second photovoltaic panel 13 moves in a straight line relative to the first photovoltaic panel 12.

[0105] The fixed pulley 151 is a pulley in the second linear transmission mechanism 15 that does not move with the photovoltaic panel. It serves as the direction change point and fixed reference point for the transmission component 153. The transmission component 153 changes direction at the fixed pulley 151, allowing it to be led out from the storage base 11 area, then loop around to the first pulley 1521 and the second pulley 1522 on the first photovoltaic panel 12, and then return to a certain direction. The fixed pulley 151 is the fixed reference for the entire "flexible transmission path," ensuring a stable looping path for the transmission component 153 during movement.

[0106] Because the fixed pulley 151 is stationary, while the first pulley 1521 and the second pulley 1522 move with the first photovoltaic panel 12, it is equivalent to one end of the reference being fixed and the other end being moving. In this way, the movement of the first photovoltaic panel 12 will force the transmission component 153 to slide between the pulleys, thereby driving the connecting component 154 and the second photovoltaic panel 13 to produce relative displacement.

[0107] The fixed pulley 151 is usually arranged in a position that coordinates with the movement direction of the first photovoltaic panel 12 and the movement direction of the second photovoltaic panel 13. In space, it forms a fixed turning point on the path around which the transmission component 153 is routed, and forms multiple straight and turning paths with the first pulley 1521 and the second pulley 1522.

[0108] The pulley system 152 includes a first pulley 1521 and a second pulley 1522 located at both ends of the first photovoltaic panel 12. Both pulleys are mounted on the first photovoltaic panel 12, but are located at the two ends of the first photovoltaic panel 12 respectively. When the first photovoltaic panel 12 moves linearly relative to the receiving base 11, the positions of the two pulleys also move as a whole. The moving pulley and the fixed pulley 151 on the receiving base 11 form a relative displacement, thereby changing the distribution length of the transmission component 153 in the entire pulley system.

[0109] The transmission component 153 is wound around the fixed pulley 151, the first pulley 1521, and the second pulley 1522. The first pulley 1521 and the second pulley 1522 determine the path segment of the transmission component 153 on the first photovoltaic panel 12. By arranging the positions of the first pulley 1521 and the second pulley 1522, the required force amplification / stroke amplification relationship can be designed, such as a double-stroke structure. When the first photovoltaic panel 12 moves outward from the receiving base 11, the change in position of the first pulley 1521 and the second pulley 1522 will produce a lengthening or shortening effect on the transmission component 153. The connecting component 154, which is fixed to the transmission component 153, will be forced to move relative to the first photovoltaic panel 12, thereby driving the second photovoltaic panel 13 to unfold or retract.

[0110] The first pulley 1521 and the second pulley 1522 are respectively arranged at the starting end and the ending end of the first photovoltaic panel 12 along its direction of movement. The distance between the first pulley 1521 and the second pulley 1522 relative to the first photovoltaic panel 12 can be considered as a fixed distance, and the entire pulley group 152 moves together with the movement of the first photovoltaic panel 12.

[0111] The transmission component 153 can be a rope, wire rope, belt, or similar flexible component, used to transmit motion and force between the pulleys. The motion of the first photovoltaic panel 12 is converted into the motion of the second photovoltaic panel 13 because the transmission component 153, on the one hand, bypasses the fixed pulley 151 to establish a reference with the receiving base 11, and on the other hand, bypasses the first pulley 1521 and the second pulley 1522, moving with the first photovoltaic panel 12. When the first photovoltaic panel 12 moves, the transmission component 153 slides relative to the pulleys; the connecting piece 154, sleeved outside and connected to the transmission component 153, is driven by the transmission component 153, thereby driving the second photovoltaic panel 13 to move.

[0112] The transmission component 153 follows a path, for example, first around the fixed pulley 151, then around the first pulley 1521, then around the second pulley 1522, and then returns. The transmission component 153 is a continuous flexible loop or semi-loop that can span multiple pulleys and multiple photovoltaic panel modules, making it suitable for driving multiple second photovoltaic panels 13 or achieving multi-point synchronization.

[0113] In this process, by winding around the fixed pulley 151, the first pulley 1521 and the second pulley 1522, the transmission member 153 passes through the groove area of ​​these three pulleys in space and wraps around them to form a certain angle. The transmission member 153 segment at the fixed pulley 151 is fixed in position relative to the receiving base 11, and the transmission member 153 segment at the first pulley 1521 and the second pulley 1522 moves together with the first photovoltaic panel 12, thereby driving the connector 154.

[0114] Connector 154 is sleeved outside transmission component 153 and connected to transmission component 153. Connector 154 is located on the frame of second photovoltaic panel 13 and is an intermediate component that directly transmits the movement of transmission component 153 to second photovoltaic panel 13. Connector 154 is sleeved outside transmission component 153, and there is no free sliding between connector 154 and transmission component 153, but a rigid or reliable connection. Connector 154 is connected to the frame of second photovoltaic panel 13.

[0115] The linear motion of the transmission component 153 is converted into the linear motion of the second photovoltaic panel 13. Since the connecting component 154 is connected to the transmission component 153, the connecting component 154 will move by the same amount as the transmission component 153 in the pulley system, or move according to a predetermined transmission ratio. The connecting component 154 is located on the edge of the second photovoltaic panel 13. Therefore, the linear motion of the connecting component 154 is directly transmitted to the second photovoltaic panel 13, so that the second photovoltaic panel 13 moves linearly relative to the first photovoltaic panel 12.

[0116] The connector 154 is fastened to the transmission component 153 like a collar / block. On the one hand, it is firmly connected to the transmission component 153 to ensure the transmission of stroke. On the other hand, it can play a guiding or limiting role in the structure to ensure that the movement direction of the second photovoltaic panel 13 is consistent with or constrained by the direction of the transmission component 153.

[0117] By defining the installation position of the connector 154 on the transmission member 153, the relative position of the transmission member 153 when the second photovoltaic panel 13 is in the retracted position and the second limit extension position can be defined. This position is coordinated with the stroke of the first linear transmission mechanism 14 to ensure that when the first photovoltaic panel 12 reaches the first limit extension position, the second photovoltaic panel 13 reaches the second limit extension position.

[0118] The connector 154 is fixed to the frame of the second photovoltaic panel 13, generally near the moving side of the second photovoltaic panel 13, so that the movement direction of the transmission component 153 is consistent with or approximately consistent with the linear movement direction of the second photovoltaic panel 13. The connector 154 passes through the path of the transmission component 153 in space, so that the second photovoltaic panel 13 is pulled under the action of the transmission component 153.

[0119] In general, the drive motor 141 drives the drive gear 143, which meshes with the driven rack 144 on the frame of the first photovoltaic panel 12. The first photovoltaic panel 12 moves linearly back and forth relative to the storage base 11, extending toward the first limit extension position and then retracting toward the storage position.

[0120] The first pulley 1521 and the second pulley 1522 are located at both ends of the first photovoltaic panel 12 and move together with the first photovoltaic panel 12. The fixed pulley 151 is located on the storage base 11 and generates relative displacement between it and the first pulley 1521 / second pulley 1522.

[0121] The transmission component 153 is wound around the fixed pulley 151, the first pulley 1521 and the second pulley 1522. When the first photovoltaic panel 12 moves, the path of the transmission component 153 between the pulleys changes, some segments become longer and some segments become shorter. In order to keep the total length of the transmission component 153 constant, the transmission component 153 will slide in each pulley.

[0122] The connector 154 is sleeved outside the transmission member 153 and is connected to the transmission member 153. When the transmission member 153 slides relative to the first photovoltaic panel 12 due to its movement, the connector 154 is pulled and moved.

[0123] The connector 154 is located on the frame of the second photovoltaic panel 13. Therefore, the displacement of the connector 154 is directly transmitted to the second photovoltaic panel 13. During the movement of the first photovoltaic panel 12 relative to the storage base 11, the second photovoltaic panel 13 moves synchronously or according to the design ratio relative to the first photovoltaic panel 12. Finally, when the first photovoltaic panel 12 reaches the first limit extension position, the second photovoltaic panel 13 reaches the second limit extension position.

[0124] Fixed pulley 151 provides a fixed reference relative to the storage base 11. Pulley assembly 152 includes a first pulley 1521 and a second pulley 1522, which move with the first photovoltaic panel 12, guiding the transmission member 153 to form a variable geometric path. The transmission member 153 is wound between the fixed pulley 151 and the pulley assembly 152, converting the motion of the first photovoltaic panel 12 into linear transmission along the path. Connector 154 is sleeved on and connected to the transmission member 153, and is also located on the frame of the second photovoltaic panel 13, converting the displacement of the transmission member 153 into linear motion of the second photovoltaic panel 13. It can be understood that the second linear transmission mechanism 15 thus constitutes a system where the second photovoltaic panel 13 does not require a separate drive motor 141, but relies solely on the movement of the first photovoltaic panel 12 to achieve automatic, linked deployment and retraction, perfectly corresponding to the overall design goal of "two-stage deployment and retraction."

[0125] In some embodiments, optionally, among the plurality of first photovoltaic panels 12, a portion are arranged at both ends of the first direction, for example, one or more rows of first photovoltaic panels 12 are arranged along the first direction, wherein the first photovoltaic panels 12 located at both ends of the first direction serve as the carriers of the pulley assembly 152.

[0126] The first pulley 1521 and the second pulley 1522 are installed on the frame of the first photovoltaic panel 12 and move together with the first photovoltaic panel 12. It can be understood that the pulley assembly 152 is specifically arranged on the frame of the first photovoltaic panel 12 at the leftmost / rightmost boundary positions.

[0127] By placing the second linear transmission mechanism 15 at the boundary of the array, transmission wiring is facilitated. By setting the pulley group 152 on the frame of the first photovoltaic panel 12 located at both ends of the first direction of the storage base 11, the pulley group 152 is placed at the edge of the photovoltaic array. This facilitates the transmission member 153 to be guided from the fixed pulley 151 on the storage base 11 to these edge first photovoltaic panels 12, and then to drive the second photovoltaic panel 13 through the pulley group 152.

[0128] The transmission component 153 has a straighter path and more space for winding; it avoids the transmission component 153 and pulley group 152 occupying the central area inside the array, reducing shading and interference to the photovoltaic panel itself; and it is more convenient for maintenance and installation.

[0129] Typically, when the second photovoltaic panel 13 is deployed, it extends outward from the outside of the array or is pulled outward from a certain boundary. Placing the pulley assembly 152 on the edges of the first photovoltaic panels 12 located at both ends in the first direction is equivalent to arranging the secondary deployment transmission mechanism at the edge of the array. The second photovoltaic panel 13 can slide out or retract along these edges in the direction of the first photovoltaic panel 12's edge. The movement direction of the second photovoltaic panel 13 is aligned with the edge of the first photovoltaic panel 12, providing clear guidance. This eliminates the need for a complex pulley mechanism inside the array, resulting in a simpler overall structure.

[0130] Because the pulley assembly 152 is located on the first photovoltaic panels 12 at both ends of the first direction of the storage base 11, there is a pulley assembly 152 on the frame of the first photovoltaic panel 12 on the left end; there is also a pulley assembly 152 on the frame of the first photovoltaic panel 12 on the right end; it can realize that the second photovoltaic panels 13 on the left side are driven to unfold / retract by the pulley assembly 152 on the left end, or the second photovoltaic panels 13 on the right side are driven to unfold / retract by the pulley assembly 152 on the right end, or the synchronous extension and retraction of the second photovoltaic panels 13 on both sides can be realized through symmetrical arrangement, thereby improving the overall symmetry and uniformity of force.

[0131] In summary, among all the first photovoltaic panels 12, the first photovoltaic panels 12 located at both ends of the first direction of the storage base 11 are selected as the bearing plates for the secondary unfolding transmission; the pulley block 152 is installed on the frame of these first photovoltaic panels 12, so that the second linear transmission mechanism 15 is arranged close to the array boundary, the transmission path is simple and the space is used reasonably; the primary movement of the first photovoltaic panel 12 and the secondary movement of the second photovoltaic panel 13 are linked on the same boundary line; the secondary unfolding mechanism can be symmetrically arranged at the left and right ends to improve the overall structural stability and unfolding effect.

[0132] In some embodiments, the upper surface of the storage base 11 is optionally the top plane of the overall structure of the storage base 11. On this upper surface, a fixed photovoltaic panel 16 is installed. This photovoltaic panel does not participate in the linear telescopic movement and is fixed relative to the storage base 11. The upper surface of the storage base 11 is directly used as the support mounting surface, thereby providing a fixed photovoltaic power generation area. Even if the telescopic mechanism is not deployed, it still has a certain power generation capacity.

[0133] The pulley assembly 152 is located on the side of the first photovoltaic panel 12 away from the upper surface. It can be understood that the fixed photovoltaic panel 16 is on top, and the first photovoltaic panel 12 moves below. One side of the first photovoltaic panel 12 faces the fixed photovoltaic panel 16 / upper surface, and the other side faces away from the fixed photovoltaic panel 16. The first pulley 1521 and the second pulley 1522 are installed on the side of the first photovoltaic panel 12 facing down or away from the fixed photovoltaic panel 16. That is to say, the pulley assembly 152 is arranged in the lower space of the first photovoltaic panel 12, rather than on the side close to the fixed photovoltaic panel 16.

[0134] The second linear transmission mechanism 15 is arranged on the lower side of the first photovoltaic panel 12 to avoid the pulley group 152 appearing in the narrow space between the first photovoltaic panel 12 and the fixed photovoltaic panel 16, thereby reducing structural interference and also preventing the pulley group 152 from blocking the light-receiving surface of the fixed photovoltaic panel 16.

[0135] The first linear transmission mechanism 14 is arranged on the upper side of the first photovoltaic panel 12. The drive motor 141 and the drive gear 143 are located near the upper surface of the housing base 11. The driven rack 144 is located on the side frame of the first photovoltaic panel 12 facing the upper surface. The two mesh directly in the area near the upper surface, resulting in a short transmission path and good rigidity.

[0136] By implementing spatial layering, the mutual interference between the two linear transmission mechanisms in space can be reduced, thus minimizing the impact on the second linear transmission mechanism 15. It can be understood that the driven rack 144 and drive gear 143 are on the upper side, and the pulley block 152 is on the lower side. The transmission component 153 can be routed on the lower side without being obstructed or interfered with by the rack and gear. One layer is responsible for the linear movement between the first photovoltaic panel 12 and the receiving base 11; the other layer is responsible for the linear movement between the second photovoltaic panel 13 and the first photovoltaic panel 12.

[0137] In summary, this solution clearly defines the fixed photovoltaic panel 16 on top and the first linear transmission mechanism 14 on the upper side in three-dimensional space; the pulley group 152 of the second linear transmission mechanism 15 is on the lower side, thereby completing the precise positioning of the two linear transmission mechanisms and the photovoltaic panel assembly, with each occupying different sides.

[0138] In some embodiments, the second linear transmission mechanism 15 may optionally include a connector 155 disposed on the storage base 11. The connector 155 is a fixed component mounted on the storage base 11 and is usually arranged near the end region of the fixed pulley 151 or the second linear transmission mechanism 15, so that the transmission member 153 starts from the connector 155, passes through the fixed pulley 151 and the pulley block 152, and then returns to the vicinity of the connector 155.

[0139] The transmission component 153 is a flexible member (such as a wire rope, cord, belt, etc.) with a certain total length and two ends, which are two movable ends. Both ends are fixed to the same connector 155. That is, the transmission component 153 starts from one fixed point of the connector 155, passes around the fixed pulley 151, the first pulley 1521, the second pulley 1522, etc., and finally returns to the other fixed point of the connector 155 to connect with the connector 155.

[0140] It is understood that the connector 155 has two connection points, namely connection point A and connection point B. One end of the transmission component 153 is fixed to connection point A, and the other end of the transmission component 153 is fixed to connection point B. Starting from point A, it sequentially winds around the fixed pulley 151 and the pulley block 152, and then returns to point B. A connecting component 154 is fitted onto a certain section of the transmission component 153, and the connecting component 154 is then fixed to the frame of the second photovoltaic panel 13, thereby realizing the linkage movement of the second photovoltaic panel 13.

[0141] The two movable ends of the transmission component 153 are connected to the connector 155 respectively. The transmission component 153 as a whole actually forms a closed or semi-closed transmission circuit with the connector 155 as the endpoint. Although it may not be a completely closed loop geometrically, both ends are anchored to the connector 155, so that the length and force are based on the connector 155. The middle part of the transmission component 153 folds and circles in space through the pulley system, and undertakes the function of transmitting displacement and force.

[0142] The total effective length of the transmission component 153 is relatively fixed. When subjected to force, the connecting seat 155 serves as the unified balance point. When the first photovoltaic panel 12 moves and the pulley block 152 moves accordingly, the length of the transmission component 153 is redistributed between the pulleys, but both ends are fixed to the connecting seat 155 to ensure that the overall transmission system has a stable geometric reference.

[0143] The fixed pulley 151 is mounted on the storage base 11, and the connecting seat 155 is also mounted on the storage base 11. One end is the fixed pulley 151 that changes direction, and the other end is the connecting seat 155 that is anchored at the end. The two work together to make the reference of the second linear transmission mechanism 15 completely established on the fixed reference system of the storage base 11.

[0144] The first photovoltaic panel 12 is a movable part, the storage base 11 is a fixed part, and the second photovoltaic panel 13 is hung on the transmission component 153 through the connector 154, so that it can achieve linear motion relative to the first photovoltaic panel 12 in the assembly.

[0145] The connector 155 serves as the central connection point for the two ends of the transmission component 153, facilitating the adjustment of the length and tension of the transmission component 153. Optionally, both ends of the transmission component 153 are on the connector 155. The connector 155 can be designed with a bolt clamping structure, or with an adjusting groove or adjusting nut. The preload of the transmission component 153 can be adjusted during installation and maintenance to ensure that it is not too loose or too tight during transmission.

[0146] The connector 155 also reduces the complexity of multi-point adjustment. If the two ends are fixed in different positions, it is troublesome to adjust. Now that everything is concentrated in one component, the connector 155, operation and maintenance are simpler.

[0147] In summary, this solution concentrates and fixes both ends of the transmission component 153 on the connector 155, which in turn is fixed to the storage base 11, forming a transmission component 153 path with endpoint control based on the storage base 11. In conjunction with the fixed pulley 151, pulley block 152, and connector 154, the movement of the first photovoltaic panel 12 is reliably converted into the linear movement of the second photovoltaic panel 13 through the geometric redistribution of the transmission component 153, and provides clear and concentrated structural points for the tensioning, length adjustment, and structural stress of the transmission component 153.

[0148] In some embodiments, optionally, through the reverse movement of the first linear transmission mechanism 14 and the second linear transmission mechanism 15, the first photovoltaic panel 12 retracts from the first limit extension position toward the storage base 11, and the second photovoltaic panel 13 retracts from the second limit extension position relative to the first photovoltaic panel 12. Finally, both return to the preset storage position and enter a compact state.

[0149] The first photovoltaic panel 12 and the second photovoltaic panel 13 are stacked, indicating that when stored, the first photovoltaic panel 12 and the second photovoltaic panel 13 are stacked vertically in space, rather than being separated and far apart. That is, the two panels are basically overlapping or have a large area overlap in the top view direction, but there is a height difference in the thickness direction.

[0150] In the stacked arrangement, the first photovoltaic panel 12 is on top and the second photovoltaic panel 13 is on the bottom, such that the fixed photovoltaic panel 16 is on the upper surface of the receiving base 11, the first photovoltaic panel 12 is located below the fixed photovoltaic panel 16, and is engaged with the drive gear 143 on the upper side of the receiving base 11 through a rack, and the second photovoltaic panel 13 is driven by a pulley group 152, a transmission component 153, and a connecting component 154 arranged on the side of the first photovoltaic panel 12 away from the upper surface.

[0151] The stacked arrangement allows the first photovoltaic panel 12 and the second photovoltaic panel 13 to occupy almost the same planar projected area when stored, with only a small increase in thickness, which is beneficial for scenarios where the overall structural height is limited.

[0152] Alternatively, only a stacked arrangement is required, with the first photovoltaic panel 12 positioned above the second photovoltaic panel 13; or only a parallel arrangement is required.

[0153] Optionally, in the stowed position, the first photovoltaic panel 12 and the second photovoltaic panel 13 are not only stacked but also arranged in parallel. In the unfolded state, even if they are not completely overlapping, they can still maintain a "parallel arrangement" and maintain a basically parallel posture to facilitate facing the sun together and to ensure a unified direction of the light-receiving surface. When the first photovoltaic panel 12 and the second photovoltaic panel 13 are arranged in parallel, they can face the same direction together to form a consistent photovoltaic power generation surface. Whether in the stowed or unfolded position, the parallel arrangement is beneficial to the overall array's light utilization and power generation efficiency.

[0154] In general, in the stowed state, the first photovoltaic panel 12 is on top and the second photovoltaic panel 13 is on the bottom, with the two stacked and parallel, resulting in a compact arrangement. In the stowed state and / or the unfolded state, the two remain parallel to each other, ensuring that the photovoltaic light-receiving surface is aligned in a uniform direction and that the structural movement is simple and consistent.

[0155] In some embodiments, optionally, the extension direction of the second photovoltaic panel 13 refers to the direction in which the second photovoltaic panel 13 moves in a straight line relative to the first photovoltaic panel 12, that is, the straight line in which the second photovoltaic panel 13 unfolds outward from its storage position. Above the extension direction of the second photovoltaic panel 13, another direction at 90° to it is taken, which is still a direction within the plane of the photovoltaic panel. This can be understood as left and right if the second photovoltaic panel 13 is front and back, or vice versa, as long as it is the lateral direction orthogonal to the extension direction.

[0156] The second photovoltaic panel 13 is disposed inside the first photovoltaic panel 12, in this transverse direction perpendicular to the extension direction, such as... Figure 1 As shown, the extension direction of the second photovoltaic panel 13 is the first direction, and the transverse direction perpendicular to the extension direction is the second direction. The first photovoltaic panel 12 occupies a certain width range, and the second photovoltaic panel 13 is located inside this width range, rather than extending beyond the outer edge. In other words, when viewing the cross-section along the transverse direction perpendicular to the extension direction, the second photovoltaic panel 13 is arranged inside the first photovoltaic panel 12, rather than extending laterally outside the first photovoltaic panel 12.

[0157] Through the above arrangement, the movement trajectory of the second photovoltaic panel 13 is ensured to be within the frame of the first photovoltaic panel 12. The second photovoltaic panel 13 moves back and forth in the extension direction, but in the lateral direction perpendicular to the extension direction, its position is restricted to the inner area of ​​the first photovoltaic panel 12. This can prevent the second photovoltaic panel 13 from overflowing the boundary of the first photovoltaic panel 12 in the lateral direction, so as not to affect the overall shape and contour, not to interfere with the external structure, and to form a unified appearance interface.

[0158] When the second photovoltaic panel 13 is positioned laterally inside the first photovoltaic panel 12, the guiding mechanism (such as a slide rail, slider, or connector 154) can be arranged in the inner frame area of ​​the first photovoltaic panel 12. The force of the transmission component 153 and the connector 154 can be more easily transmitted symmetrically through the first photovoltaic panel 12 to the receiving base 11. Compared to hanging the second photovoltaic panel 13 on the outer edge of one side of the first photovoltaic panel 12, this inner-side arrangement results in a more concentrated force path and better overall rigidity.

[0159] Whether viewed from above or from the side, the second photovoltaic panel 13 is contained within the area defined by the first photovoltaic panel 12, forming a compact and regular nested relationship. Because the second photovoltaic panel 13 is located inside the first photovoltaic panel 12 in the horizontal direction, the horizontal outline is mainly determined by the first photovoltaic panel 12 when it is in the storage position. The second photovoltaic panel 13 will not protrude additionally in the horizontal direction. This allows for strict control of the horizontal dimensions of the entire module in the stored state, making it convenient for installation in scenarios with limited width (such as car roofs, cabinet tops, etc.).

[0160] like Figure 5 As shown, another embodiment of this application provides an energy storage robot 2 including the aforementioned photovoltaic module 1 and a mobile base 21. The mobile base 21 provides mobility, allowing the energy storage robot 2 to move to a location favorable for sunlight collection, charging, or power supply, thereby improving energy acquisition and utilization efficiency. The aforementioned photovoltaic module 1 has a structure including a storage base 11, multiple first photovoltaic panels 12, at least one second photovoltaic panel 13, a first linear transmission mechanism 14, and a second linear transmission mechanism 15, etc., which enables it to be compact in the stored state and obtain a larger light-receiving area in the unfolded state. The aforementioned photovoltaic module 1 can rotate relative to the mobile base 21, allowing its light-receiving surface direction to be adjusted according to the sun's position or environmental limitations.

[0161] Since the energy storage robot 2 includes any of the aforementioned photovoltaic modules 1, it has the beneficial effects of any of the aforementioned photovoltaic modules 1, which will not be elaborated here.

[0162] In this invention, the terms "sealed," "fixed," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installed," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "linked" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0163] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0164] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0165] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A photovoltaic module, characterized in that, include: Storage base; Multiple first photovoltaic panels are connected to the storage base via a first linear transmission mechanism, and the first photovoltaic panels move linearly relative to the storage base. At least one second photovoltaic panel is provided, which is connected to the first photovoltaic panel via a second linear transmission mechanism. When the first photovoltaic panel moves linearly relative to the storage base, the second photovoltaic panel moves linearly relative to the first photovoltaic panel. Specifically, during the process of the first photovoltaic panel moving towards the first limit extension position relative to the storage base, the second photovoltaic panel moves towards the second limit extension position relative to the first photovoltaic panel, and when the first photovoltaic panel is at the first limit extension position, the second photovoltaic panel is at the second limit extension position.

2. The photovoltaic module according to claim 1, characterized in that, The first linear transmission mechanism includes: A drive motor is provided on the storage base, and the drive shaft of the drive motor is provided with a drive gear; A driven rack is disposed on the frame of the first photovoltaic panel, and the driven rack meshes with the drive gear; The drive motor rotates, which in turn drives the drive gear to rotate, so that the first photovoltaic panel moves back and forth in a straight line relative to the storage base.

3. The photovoltaic module according to claim 2, characterized in that, The first linear transmission mechanism is located at both ends of the storage base in the first direction, and the first linear transmission mechanism is located at both ends of the storage base in the second direction. Wherein, the first direction and the second direction are perpendicular.

4. The photovoltaic module according to claim 2, characterized in that, The second linear transmission mechanism includes: A fixed pulley is provided on the storage base; The pulley system includes a first pulley and a second pulley located at both ends of the first photovoltaic panel; A transmission component is wound around the fixed pulley, the first pulley, and the second pulley; A connector is sleeved outside the transmission component and connected to the transmission component. The connector is located on the frame of the second photovoltaic panel.

5. The photovoltaic module according to claim 4, characterized in that, The pulley system is located on the frame of the first photovoltaic panel at both ends of the first direction of the storage base.

6. The photovoltaic module according to claim 4, characterized in that, The upper surface of the storage base is provided with a fixed photovoltaic panel, the pulley group is located on the side of the first photovoltaic panel away from the upper surface, and the driven rack is located on the side of the first photovoltaic panel facing the upper surface.

7. The photovoltaic module according to claim 4, characterized in that, The second linear transmission mechanism further includes: A connector is provided on the storage base, and the two movable ends of the transmission component are respectively connected to the connector.

8. The photovoltaic module according to claim 1, characterized in that, The first photovoltaic panel and the second photovoltaic panel are moved to their storage position, stacked together, with the first photovoltaic panel positioned above the second photovoltaic panel; and / or The first photovoltaic panel and the second photovoltaic panel are arranged in parallel.

9. The photovoltaic module according to claim 1, characterized in that, The second photovoltaic panel is disposed inside the first photovoltaic panel in a direction perpendicular to the extension direction of the second photovoltaic panel.

10. An energy storage robot, characterized in that, include: Mobile base; The photovoltaic module as described in any one of claims 1 to 9 is rotatably connected to the movable base.

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