Photovoltaic power generation device

Abstract

The utility model belongs to the field of photovoltaic power generation devices, and discloses a photovoltaic power generation device, which comprises a flexible photovoltaic sheet, a pull rod and a winding mechanism. One end of the flexible photovoltaic sheet is fixedly connected with the pull rod, and the pull rod serves as a user operation part, so that a user can pull the flexible photovoltaic sheet out of the shell and unfold the flexible photovoltaic sheet by pulling the pull rod. The winding mechanism is composed of a shell and a rotating shaft, the rotating shaft is rotatably installed in the shell, and the other end of the flexible photovoltaic piece is connected to the rotating shaft. When the rotating shaft is rotated, the flexible photovoltaic sheet can be rolled into the shell, and storage of the device is achieved; otherwise, by reversely rotating the rotating shaft or pulling the pull rod, the flexible photovoltaic piece can extend out of the shell and be unfolded so as to carry out photovoltaic power generation operation. The photovoltaic power generation device not only solves the problem that a traditional photovoltaic power generation panel is not easy to store and occupies a large space, but also remarkably improves the portability and applicability of the device through the winding characteristic of the flexible photovoltaic sheet, so that the photovoltaic power generation device can adapt to various complex environments and use scenes.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic power generation device technology, and more specifically, relates to a photovoltaic power generation device. Background Technology

[0002] Traditional photovoltaic (PV) panels typically employ a rigid structure, consisting of multiple photovoltaic cells fixed to a rigid substrate. While this design effectively absorbs solar energy and converts it into electricity, it presents several inconveniences in practical applications. Firstly, the large size and fixed shape of PV panels require significant space for transportation and storage, increasing logistics costs and management complexity. Secondly, installation typically necessitates fixing the panels to open areas or rooftops, demanding ample space and potentially facing limitations imposed by terrain and building structure, further complicating installation. Furthermore, the rigid structure of traditional PV panels limits the versatility of their applications, making them difficult to carry, transport, and adapt to complex and changing environmental conditions. Utility Model Content

[0003] The purpose of this application is to provide a photovoltaic power generation device to solve the technical problem that photovoltaic power generation devices in the prior art are not easy to carry and store.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] A photovoltaic power generation device is provided, comprising:

[0006] Flexible photovoltaic cells;

[0007] A pull rod is connected to one end of the flexible photovoltaic panel;

[0008] A winding mechanism includes a housing and a rotating shaft, the rotating shaft being rotatably connected inside the housing, and the other end of the flexible photovoltaic sheet being connected to the rotating shaft; when the rotating shaft rotates, the flexible photovoltaic sheet is wound into the housing, or the flexible photovoltaic sheet extends out of the housing.

[0009] As a further improvement to the above technical solution:

[0010] Optionally, the winding mechanism further includes a rotation angle locking component, which is located at one end of the rotating shaft to lock the rotation angle of the rotating shaft.

[0011] Optionally, the rotation angle locking assembly includes a ratchet and a pawl, the ratchet being connected to one end of the rotating shaft, and the pawl being movably connected to the housing and engaging with the ratchet.

[0012] Optionally, the rotation angle locking assembly further includes a first elastic element, one end of which is connected to the housing, and the other end of which is connected to the pawl, so that the pawl engages with the ratchet.

[0013] Optionally, the winding mechanism further includes an unlocking component for driving the pawl to separate from the ratchet.

[0014] Optionally, the unlocking component includes an unlocking button and a second spring. The unlocking button is movably connected to the housing and is used to drive the pawl to separate from the ratchet. One end of the second spring is connected to the housing, and the other end of the second spring is connected to the unlocking button.

[0015] Optionally, the unlock button has a first bevel, and the pawl has a second bevel, the first bevel and the second bevel being slidably in contact with each other;

[0016] When the unlock button and the pawl are close to each other, the pawl disengages from the ratchet; when the unlock button and the pawl are far apart, the pawl engages with the ratchet.

[0017] Optionally, the winding mechanism further includes a rotary reset assembly for driving the shaft to rotate, so as to wind the flexible photovoltaic sheet into the housing.

[0018] Optionally, the rotary reset assembly includes a fixed base and a coil spring. The fixed base is connected to the housing, one end of the coil spring is connected to the fixed base, and the other end of the coil spring is connected to the ratchet.

[0019] Optionally, the photovoltaic power generation device also includes an energy storage battery, which is installed inside the housing and electrically connected to the flexible photovoltaic panel.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This application provides a photovoltaic power generation device, which includes a flexible photovoltaic panel, a pull rod, and a winding mechanism. The flexible photovoltaic panel specifically uses a flexible perovskite photovoltaic panel, which can be bent and wound around a rotating shaft. The flexible photovoltaic panel converts solar energy into electrical energy through the photoelectric effect. One end of the flexible photovoltaic panel is fixedly connected to the pull rod, which serves as a user operating component, allowing the user to pull the flexible photovoltaic panel out of the housing and unfold it, thereby realizing the photovoltaic power generation function. The winding mechanism consists of a housing and a rotating shaft, wherein the rotating shaft is rotatably installed inside the housing, and the other end of the flexible photovoltaic panel is connected to the rotating shaft. By rotating the rotating shaft, the flexible photovoltaic panel can be wound into the housing for storage; conversely, by rotating the rotating shaft in the opposite direction or pulling the pull rod, the flexible photovoltaic panel can extend from the housing and unfold for photovoltaic power generation. This photovoltaic power generation device not only solves the problems of traditional photovoltaic panels being difficult to store and occupying a large space, but also significantly improves the portability and applicability of the device through the rollable characteristics of the flexible photovoltaic panel, enabling it to adapt to various complex environments and usage scenarios. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the photovoltaic power generation device of this application;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of the photovoltaic power generation device of this application;

[0025] Figure 3 This is a partial cross-sectional structural schematic diagram of the photovoltaic power generation device of this application.

[0026] The following are the labeling elements in the figure:

[0027] 1. Flexible photovoltaic cell; 2. Pull rod; 3. Winding mechanism; 31. Housing; 32. Rotating shaft; 33. Rotation angle locking assembly; 331. Ratchet; 332. Pawl; 333. First elastic element; 34. Unlocking assembly; 341. Unlocking button; 342. Second spring; 35. Rotation reset assembly; 351. Fixing base; 352. Coil spring. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application and simplifying the description, and do not indicate or imply that the device or element 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 application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0033] like Figures 1 to 3As shown, this application provides a photovoltaic power generation device, which includes a flexible photovoltaic panel 1, a pull rod 2, and a winding mechanism 3. The flexible photovoltaic panel 1 is specifically a flexible perovskite photovoltaic panel, which can be bent and wound around a rotating shaft 32. The flexible photovoltaic panel 1 converts solar energy into electrical energy through the photoelectric effect. One end of the flexible photovoltaic panel 1 is fixedly connected to the pull rod 2, which serves as a user operating component, allowing the user to pull the flexible photovoltaic panel 1 out of the housing 31 and unfold it, thereby realizing the photovoltaic power generation function. The winding mechanism 3 consists of a housing 31 and a rotating shaft 32, wherein the rotating shaft 32 is rotatably installed inside the housing 31, and the other end of the flexible photovoltaic panel 1 is connected to the rotating shaft 32. By rotating the rotating shaft 32, the flexible photovoltaic panel 1 can be wound into the housing 31 for storage; conversely, by rotating the rotating shaft 32 in the opposite direction or pulling the pull rod 2, the flexible photovoltaic panel 1 can extend out of the housing 31 and unfold for photovoltaic power generation. This photovoltaic power generation device not only solves the problems of traditional photovoltaic panels being difficult to store and occupying a lot of space, but also significantly improves the portability and applicability of the device through the rollable characteristics of the flexible photovoltaic sheet 1, enabling it to adapt to a variety of complex environments and usage scenarios.

[0034] In one specific embodiment of this application, the winding mechanism 3 further includes a rotation angle locking component 33, which is disposed at one axial end of the rotating shaft 32 to precisely lock the rotation angle of the rotating shaft 32. The rotation angle locking component 33 cooperates with the rotating shaft 32 mechanically or electromagnetically, and can lock the rotating shaft 32 at a specific rotation angle position according to actual needs during user operation. When the rotating shaft 32 is locked, the extended length of the flexible photovoltaic panel 1 is fixed, thereby ensuring that the flexible photovoltaic panel 1 maintains a stable working posture in the unfolded state. This design can not only effectively prevent the flexible photovoltaic panel 1 from accidentally rewinding or over-unfolding due to external wind or other external forces, but also flexibly adjust the unfolded area of ​​the flexible photovoltaic panel 1 according to different lighting conditions or usage scenarios to optimize photovoltaic power generation efficiency. In addition, the rotation angle locking component 33 has a simple structure and is easy to operate. Users can quickly lock and unlock the rotating shaft 32 through manual or automatic control, further improving the ease of use and reliability of the device.

[0035] In one specific embodiment of this application, the rotation angle locking assembly 33 specifically includes a ratchet 331 and a pawl 332. The ratchet 331 is fixedly connected to one axial end of the rotating shaft 32 and is coaxially arranged with the rotating shaft 32, so that the ratchet 331 can rotate synchronously with the rotating shaft 32. The pawl 332 is movably connected to the housing 31 by hinge or sliding, and its position corresponds to the ratchet 331 so as to engage or disengage with the ratchet 331. When the pawl 332 engages with the ratchet 331, the rotation of the ratchet 331 is restricted, thereby locking the rotation angle of the rotating shaft 32 and keeping the extension length of the flexible photovoltaic panel 1 stable; when the pawl 332 disengages from the ratchet 331, the rotating shaft 32 can rotate freely to realize the winding or unfolding of the flexible photovoltaic panel 1. The tooth profile design of the ratchet 331 can be adjusted according to actual needs to achieve different precision angle locking effects. Furthermore, the operation of the pawl 332 can be achieved manually or automatically, for example, by controlling its engagement with the ratchet 331 through a spring mechanism or electromagnetic drive device, thereby improving the convenience and reliability of operation. This rotation angle locking assembly 33 has a simple structure and is easy to implement, effectively meeting the stability and flexibility requirements of photovoltaic power generation devices in different application scenarios.

[0036] In one specific embodiment of this application, the rotation angle locking assembly 33 further includes a first elastic element 333. One end of the first elastic element 333 is fixedly connected to the inner wall of the housing 31, and the other end is connected to the pawl 332, providing continuous elastic support force to the pawl 332 to ensure that the pawl 332 and the ratchet 331 maintain a stable engagement state. The first elastic element 333 can be a coil spring, torsion spring, or other components with elastic recovery function, and its elastic coefficient can be selected according to actual needs to balance the relationship between locking force and ease of operation. When the pawl 332 is engaged with the ratchet 331, the elastic force of the first elastic element 333 can effectively prevent the pawl 332 from accidentally disengaging from the ratchet 331 due to external vibration or impact, thereby enhancing the reliability and stability of the rotation angle locking assembly 33.

[0037] In one specific embodiment of this application, the winding mechanism 3 further includes an unlocking component 34, which is used to drive the pawl 332 to separate from the ratchet 331 so that the rotating shaft 32 can rotate freely to realize the winding or unfolding of the flexible photovoltaic sheet 1.

[0038] In one specific embodiment of this application, the unlocking component 34 includes an unlocking button 341 and a second spring 342. The unlocking button 341 is movably connected to the housing 31 by sliding, with one end extending outside the housing 31 for user operation, and the other end contacting a pawl 332. When the user presses the unlocking button 341, the pawl 332 is driven to separate from the ratchet 331, thereby releasing the rotation restriction on the rotating shaft 32. One end of the second spring 342 is fixedly connected to the inner wall of the housing 31, and the other end is connected to the unlocking button 341. It provides a reset force after the unlocking button 341 is pressed, allowing it to automatically return to its initial position. The second spring 342 can be a compression spring, a tension spring, or other components with elastic recovery function. Its elastic coefficient can be selected according to the operating force requirements to ensure the smoothness of the unlocking operation and the reset accuracy. When the user presses the unlock button 341, the second spring 342 is compressed or stretched, and the pawl 332 separates from the ratchet 331, allowing the shaft 32 to rotate freely. When the user releases the unlock button 341, the elastic force of the second spring 342 drives the unlock button 341 to reset, and the pawl 332 re-engages with the ratchet 331 under the action of the first elastic element 333, restoring the locking function of the shaft 32.

[0039] In one specific embodiment of this application, the end of the unlock button 341 is provided with a first inclined surface, and the corresponding position of the pawl 332 is provided with a second inclined surface. The first and second inclined surfaces are slidably in contact with each other, forming an inclined surface engagement structure. When the user presses the unlock button 341, the unlock button 341 moves towards the pawl 332, and the first and second inclined surfaces slide relative to each other. The first inclined surface presses against the second inclined surface through its inclined surface force, causing the pawl 332 to move to one side, thereby disengaging from the ratchet 331 and unlocking the rotating shaft 32. When the user releases the unlock button 341, the unlock button 341 moves away from the pawl 332 under the elastic restoring force of the second spring 342, and the first and second inclined surfaces gradually separate. At the same time, the pawl 332 moves towards the ratchet 331 under the elastic support force of the first elastic element 333 until the pawl 332 re-engages with the ratchet 331, restoring the function of locking the rotation angle of the rotating shaft 32. In addition, the design of the ramp angle can be optimized according to actual needs to balance the relationship between operating force and locking force.

[0040] In one specific embodiment of this application, the winding mechanism 3 further includes a rotary reset component 35, which is used to drive the rotating shaft 32 to rotate automatically in order to realize the automatic winding function of the flexible photovoltaic sheet 1.

[0041] In one specific embodiment of this application, the rotary reset assembly 35 specifically includes a coil spring 352 and a fixed base 351, wherein one end of the coil spring 352 is connected to the fixed base 351, and the other end of the coil spring 352 is connected to the ratchet 331. The fixed base 351 is fixedly installed inside the housing 31. When the flexible photovoltaic panel 1 is pulled out of the housing 31, the rotating shaft 32 drives the ratchet 331 to rotate, and drives the coil spring 352 to coil up, storing elastic potential energy; when the user releases the pull rod 2 or unlocks the rotation angle locking assembly 33, the coil spring 352 releases its elastic potential energy, driving the ratchet 331 and the rotating shaft 32 to rotate in the opposite direction, thereby automatically winding the flexible photovoltaic panel 1 back into the housing 31. The elastic coefficient of the coil spring 352 can be optimized according to the length and weight of the flexible photovoltaic panel 1 to ensure the smoothness and reliability of the winding process and avoid affecting the normal use of the device due to excessively fast or slow winding speed.

[0042] In one specific embodiment of this application, the photovoltaic power generation device further includes an energy storage battery (not shown). The energy storage battery is fixedly installed inside the housing 31 and electrically connected to the flexible photovoltaic panel 1 via wires, for storing the electrical energy generated by the flexible photovoltaic panel 1 under sunlight conditions. The energy storage battery can be a lithium-ion battery, a nickel-metal hydride battery, or other types of rechargeable batteries, and its capacity and specifications can be selected according to actual application needs to meet the energy storage requirements in different scenarios. After the flexible photovoltaic panel 1 converts solar energy into electrical energy under sunlight conditions, the electrical energy is transmitted to the energy storage battery via wires for storage, so as to supply power to external loads when there is no sunlight or insufficient sunlight.

[0043] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic power generation device, characterized by comprising: include: Flexible photovoltaic sheet (1); A pull rod (2) is connected to one end of the flexible photovoltaic sheet (1); The winding mechanism (3) includes a housing (31) and a rotating shaft (32). The rotating shaft (32) is rotatably connected to the housing (31), and the other end of the flexible photovoltaic sheet (1) is connected to the rotating shaft (32). When the rotating shaft (32) rotates, the flexible photovoltaic sheet (1) is wound into the housing (31), or the flexible photovoltaic sheet (1) extends out of the housing (31).

2. The photovoltaic power generation device as described in claim 1, characterized in that, The winding mechanism (3) further includes a rotation angle locking component (33), which is located at one end of the rotating shaft (32) to lock the rotation angle of the rotating shaft (32).

3. The photovoltaic power generation device as described in claim 2, characterized in that, The rotation angle locking assembly (33) includes a ratchet (331) and a pawl (332). The ratchet (331) is connected to one end of the rotating shaft (32), and the pawl (332) is movably connected to the housing (31) and engages with the ratchet (331).

4. The photovoltaic power generation device as described in claim 3, characterized in that, The rotation angle locking assembly (33) further includes a first elastic element (333), one end of which is connected to the housing (31), and the other end of which is connected to the pawl (332) so that the pawl (332) engages with the ratchet (331).

5. The photovoltaic power generation device as described in claim 3, characterized in that, The winding mechanism (3) further includes an unlocking component (34) for driving the pawl (332) to separate from the ratchet (331).

6. The photovoltaic power generation device as described in claim 5, characterized in that, The unlocking component (34) includes an unlocking button (341) and a second spring (342). The unlocking button (341) is movably connected to the housing (31) and is used to drive the pawl (332) to separate from the ratchet (331). One end of the second spring (342) is connected to the housing (31), and the other end of the second spring (342) is connected to the unlocking button (341).

7. The photovoltaic power generation device as described in claim 6, characterized in that, The unlock button (341) has a first inclined surface, and the pawl (332) has a second inclined surface, the first inclined surface and the second inclined surface being slidably in contact with each other; When the unlock button (341) and the pawl (332) are close to each other, the pawl (332) is separated from the ratchet (331); when the unlock button (341) and the pawl (332) are far apart, the pawl (332) is engaged with the ratchet (331).

8. The photovoltaic power generation device as described in claim 3, characterized in that, The winding mechanism (3) further includes a rotary reset assembly (35) for driving the shaft (32) to rotate so as to wind the flexible photovoltaic sheet (1) into the housing (31).

9. The photovoltaic power generation device as described in claim 8, characterized in that, The rotary reset assembly (35) includes a fixed base (351) and a coil spring (352). The fixed base (351) is connected to the housing (31), one end of the coil spring (352) is connected to the fixed base (351), and the other end of the coil spring (352) is connected to the ratchet (331).

10. The photovoltaic power generation device according to any one of claims 1 to 9, characterized in that, It also includes an energy storage battery, which is installed inside the housing (31) and electrically connected to the flexible photovoltaic sheet (1).

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