Solar photovoltaic panel with folding and unfolding functions

Abstract

The utility model relates to a solar photovoltaic panel with a folding and unfolding function, and aims to solve the problems that the current solar photovoltaic panel is of an integral type, the power generation efficiency is low due to too small size, the solar photovoltaic panel is inconvenient to carry due to too large size, the solar photovoltaic panel used outdoors has certain limitation, and the use cost is high. The power generation device comprises a folding mechanism, the folding mechanism comprises a connecting frame, two connecting shafts are rotatably connected between the two sides of an inner cavity of the connecting frame through bearings, photovoltaic panels are installed on the outer sides of the two connecting shafts, a worm gear is installed on the outer side of one connecting shaft, and the worm gear is installed on the outer side of the other connecting shaft. A driving motor is installed on the inner wall of the connecting frame, a worm is installed at the driving end of the driving motor through a coupler, and the worm is meshed with the worm gear, the photovoltaic panel can be stored and unfolded, and then the photovoltaic panel is convenient to carry while the power generation efficiency of the photovoltaic panel is kept.

Description

Technical Field

[0001] This utility model relates to the field of solar photovoltaic panels, specifically a solar photovoltaic panel with retractable and extendable functions. Background Technology

[0002] A photovoltaic (PV) panel is a power generation device that generates direct current (DC) when exposed to sunlight. It consists of thin, solid photovoltaic cells made almost entirely of semiconductor materials, such as silicon.

[0003] When temporary power is needed outdoors, solar photovoltaic panels are often used to generate electricity. However, most existing solar photovoltaic panels are one-piece designs; if they are too small, their power generation efficiency is low, and if they are too large, they are inconvenient to carry. This limits the use of solar photovoltaic panels outdoors, making it impossible to maintain both power generation efficiency and portability. Therefore, new technical solutions are needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a solar photovoltaic panel with a retractable function. This solves the technical problem that most current solar photovoltaic panels are integral, which are too small and therefore have low power generation efficiency, while those that are too large are not convenient to carry. As a result, outdoor solar photovoltaic panels have certain limitations and cannot maintain power generation efficiency while being easy to carry.

[0005] To achieve the objectives of this utility model, the technical solution adopted is as follows: A solar photovoltaic panel with retractable / expandable functions is designed, comprising:

[0006] A folding mechanism includes a connecting frame. Two connecting shafts are rotatably connected between the two sides of the inner cavity of the connecting frame via bearings. Photovoltaic panels are installed on the outer sides of both connecting shafts. A worm gear is installed on the outer side of one of the connecting shafts. A drive motor is installed on the inner wall of the connecting frame. A worm is installed on the drive end of the drive motor via a coupling. The worm meshes with the worm gear. A synchronization mechanism is provided between the ends of the two connecting shafts away from the worm gear.

[0007] The protective mechanism includes a baffle hinged to the bottom of the openings at both ends of the connecting frame. The size of the baffle is adapted to the end face size of the openings at both ends of the connecting frame. The connecting frame is provided with a buckle, and a locking mechanism is provided between the baffle and the connecting frame.

[0008] Preferably, the synchronization mechanism includes gears mounted on the outside of the two connecting shafts, and the two gears mesh with each other.

[0009] Preferably, the locking mechanism includes connecting grooves on both sides of the baffle and insertion holes on both sides of one end of the connecting frame opening. A T-shaped rod slides through the inner cavity of the connecting groove. The T-shaped rod corresponds to the insertion hole, and the outer diameter of the T-shaped rod is adapted to the inner diameter of the insertion hole. A spring is sleeved on the outer side of the T-shaped rod in the connecting groove, and the two ends of the spring are respectively connected to the T-shaped rod and the inner wall of the connecting groove.

[0010] Preferably, an operating groove is provided on the top side of the connecting frame, and a transmission rod passes through the bottom of the inner cavity of the operating groove. The transmission rod is rotatably connected to the connecting frame through a bearing, and the bottom of the transmission rod is connected to the top of the worm gear.

[0011] Preferably, both ends of the transmission rod are fixedly connected to hand handles, and the hand handles are symmetrically distributed.

[0012] Preferably, a sealing block is provided in the operating groove, and the sealing block is elastic.

[0013] Preferably, a handle is installed on the top of the connecting frame. The handle is arc-shaped and is located at the top center of the connecting frame.

[0014] Preferably, the helix angle of the worm is smaller than the equivalent friction angle of the meshing surface between the worm wheel and the worm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model combines a connecting frame, baffle, connecting shaft, worm gear, worm wheel, synchronization mechanism, and photovoltaic panel. When carrying the photovoltaic panel, the drive motor drives the worm gear to rotate forward, which in turn, in conjunction with the worm wheel and synchronization mechanism, drives the two photovoltaic panels to rotate synchronously. When the two photovoltaic panels are rotated and placed vertically, they fold inside the connecting frame. Then, the baffle is rotated by a hinge to cover the openings at both ends of the connecting frame, and a latch limits the baffle's position (e.g., ...). Figure 5 As shown in the figure, the size of the photovoltaic panel is reduced, making it easier to carry. When the photovoltaic panel is in use, the latch is opened, the baffle is unfolded, and then the drive motor drives the worm gear to rotate in the opposite direction, which, together with the worm wheel and the synchronization mechanism, drives the two photovoltaic panels to rotate and unfold synchronously until they are placed horizontally for use. This maintains the power generation efficiency of the photovoltaic panel while making it easy to carry.

[0017] 2. This utility model combines an operating groove, a transmission rod, a handheld rod, and a sealing block. When the drive motor (which does not have a self-locking function) is damaged, the handheld rod can be held and rotated to drive the worm gear. This allows for manual unfolding and retraction of the photovoltaic panel even when the drive motor is damaged, which is quite practical. Furthermore, the sealing block inserted into the operating groove can cover the transmission rod when not in use, improving the aesthetics of the device and protecting the transmission rod. Attached Figure Description

[0018] Figure 1 This is a side view of the unfolded structure of the solar photovoltaic panel of this utility model.

[0019] Figure 2 This is a top view of the unfolded structure of the solar photovoltaic panel of this utility model.

[0020] Figure 3 This is a schematic diagram of the solar photovoltaic panel connection structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the solar photovoltaic panel and the synchronization mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the solar photovoltaic panel after it has been stored.

[0023] Figure 6 This is an enlarged view of point A in this utility model;

[0024] Figure 7 This is an enlarged view of section B of this utility model.

[0025] In the diagram: 1. Connecting frame; 11. Baffle; 12. Handle; 13. Lock; 2. Photovoltaic panel; 21. Connecting shaft; 3. Connecting groove; 31. T-shaped rod; 32. Spring; 33. Insertion hole; 4. Operating groove; 41. Transmission rod; 42. Hand handle; 43. Sealing block; 5. Drive motor; 51. Worm gear; 52. Worm wheel; 53. Gear. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Example 1: A solar photovoltaic panel with retractable function, see [link to example]. Figures 1 to 7The system includes: a folding mechanism, comprising a connecting frame 1, with two connecting shafts 21 rotatably connected between the two sides of the inner cavity of the connecting frame 1 via bearings; photovoltaic panels 2 are mounted on the outer sides of both connecting shafts 21; a worm gear 52 is mounted on the outer side of one of the connecting shafts 21; a drive motor 5 is mounted on the inner wall of the connecting frame 1; a worm 51 is mounted on the drive end of the drive motor 5 via a coupling; the worm 51 meshes with the worm gear 52; and a synchronization mechanism is provided between the ends of the two connecting shafts 21 away from the worm gear 52; and a protective mechanism, comprising baffles 11 hinged to the bottom of the openings at both ends of the connecting frame 1; the size of the baffles 11 being adapted to the end face size of the openings at both ends of the connecting frame 1; a latch 13 being provided on the connecting frame 1; and a locking mechanism being provided between the baffles 11 and the connecting frame 1.

[0028] During operation, when the photovoltaic panel 2 is being carried, the drive motor 5 drives the worm gear 51 to rotate forward, which, in conjunction with the worm wheel 52 and the synchronization mechanism, drives the two photovoltaic panels 2 to rotate synchronously. When the two photovoltaic panels 2 are rotated and placed vertically, they fold inside the connecting frame 1. Then, the hinge rotates the baffle 11 to block the openings at both ends of the connecting frame 1, and the latch 13 limits the position of the baffle 11 (e.g., ...). Figure 5 As shown, this reduces the volume of the photovoltaic panel 2, making it easier to carry. During transport, the photovoltaic panel 2 is placed in the enclosed space connected to the connecting frame 1 and the baffle 11, thus preventing damage to the photovoltaic panel 2 during transport. When the photovoltaic panel 2 is in use, the latch 13 is opened, the baffle 11 is unfolded, and then the drive motor 5 drives the worm gear 51 to rotate in the opposite direction, thereby cooperating with the worm wheel 52 and the synchronization mechanism to drive the two photovoltaic panels 2 to rotate and unfold synchronously until they are placed horizontally for use. This maintains the power generation efficiency of the photovoltaic panel 2 while making it easy to carry. The forward and reverse rotation control of the drive motor 5 is a known technology and will not be described in detail here. When the photovoltaic panel is unfolded for use, the baffle 11 opens perpendicular to the connecting frame 1, thereby improving the stability of the baffle 11 vertically connected to the connecting frame 1, thereby increasing the grounding area of ​​the connecting frame 1 when in use, and further improving the stability of the photovoltaic panel 2 when unfolded for use.

[0029] For details, see Figure 4 The synchronization mechanism includes gears 53 installed on the outside of the two connecting shafts 21. The two gears 53 mesh with each other, and the arrangement of the gears 53 facilitates the different unfolding and folding of the two photovoltaic panels 2.

[0030] Further, see Figure 1 and Figure 7The locking mechanism includes connecting grooves 3 on both sides of the baffle 11 and insertion holes 33 on both sides of the opening of the connecting frame 1. A T-shaped rod 31 slides through the inner cavity of the connecting groove 3. The T-shaped rod 31 corresponds to the insertion hole 33, and the outer diameter of the T-shaped rod 31 is adapted to the inner diameter of the insertion hole 33. A spring 32 is sleeved on the outside of the T-shaped rod 31 in the connecting groove 3. The two ends of the spring 32 are respectively connected to the inner wall of the T-shaped rod 31 and the connecting groove 3. When the baffle 11 is opened and perpendicular to the connecting frame 1, the T-shaped rod 31 is inserted into the insertion hole 33, thereby cooperating with the pulling force of the spring 32 to pull the T-shaped rod 31 to be limited in the insertion hole 33, thereby improving the stability of the connection between the baffle 11 and the connecting frame 1, and further improving the stability during photovoltaic use.

[0031] It is worth noting that, see Figure 5 and Figure 6 An operating groove 4 is provided on the top side of the connecting frame 1. A transmission rod 41 passes through the bottom of the inner cavity of the operating groove 4. The transmission rod 41 is rotatably connected to the connecting frame 1 through a bearing. The bottom of the transmission rod 41 is connected to the top of the worm gear 51. Hand levers 42 are fixedly connected to both ends of the transmission rod 41, and the hand levers 42 are symmetrically distributed. A sealing block 43 is provided in the operating groove 4. The sealing block 43 is elastic. When the drive motor 5 (without self-locking) is damaged, by holding the hand lever 42 and rotating it, the transmission rod 41 can be used to drive the worm gear 51 to rotate. This allows the photovoltaic panel 2 to be manually unfolded and retracted even when the drive motor 5 is damaged, which is quite practical. Furthermore, by inserting the sealing block 43 into the operating groove 4, the transmission rod 41 can be covered when not in use, which not only improves the aesthetics of the device but also protects the transmission rod 41.

[0032] It is worth noting that, see Figure 1 A handle 12 is installed on the top of the connecting frame 1. The handle 12 is arc-shaped and is located at the top center of the connecting frame 1. The handle 12 makes it easy for people to hold the device and lift and carry it.

[0033] It is worth mentioning that, see Figure 3 The helix angle of the worm 51 is smaller than the equivalent friction angle of the meshing surface of the worm wheel 52 and the worm 51, which is used to make the meshing of the worm 51 and the worm wheel 52 self-locking, so that the worm 51 cannot be driven in reverse by the worm wheel 52, thereby further improving the stability of the photovoltaic panel 2 when it is unfolded.

[0034] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0035] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A solar photovoltaic panel with retractable / expandable function, characterized in that, include: A folding mechanism is provided, comprising a connecting frame (1), wherein two connecting shafts (21) are rotatably connected between the two sides of the inner cavity of the connecting frame (1) via bearings, and photovoltaic panels (2) are installed on the outer sides of the two connecting shafts (21), and a worm gear (52) is installed on the outer side of one of the connecting shafts (21). A drive motor (5) is installed on the inner wall of the connecting frame (1), and a worm (51) is installed on the drive end of the drive motor (5) via a coupling. The worm (51) meshes with the worm gear (52), and a synchronization mechanism is provided between the ends of the two connecting shafts (21) away from the worm gear (52). The protective mechanism includes a baffle (11) hinged to the bottom of the openings at both ends of the connecting frame (1). The size of the baffle (11) is adapted to the end face size of the openings at both ends of the connecting frame (1). A buckle (13) is provided on the connecting frame (1). A locking mechanism is provided between the baffle (11) and the connecting frame (1).

2. A solar photovoltaic panel with retractable function as described in claim 1, characterized in that, The synchronization mechanism includes gears (53) mounted on the outside of the two connecting shafts (21), and the two gears (53) mesh with each other.

3. A solar photovoltaic panel with retractable function as described in claim 1, characterized in that, The locking mechanism includes connecting grooves (3) on both sides of the baffle (11) and insertion holes (33) on both sides of the opening of the connecting frame (1). A T-shaped rod (31) slides through the inner cavity of the connecting groove (3). The T-shaped rod (31) corresponds to the insertion hole (33), and the outer diameter of the T-shaped rod (31) is adapted to the inner diameter of the insertion hole (33). A spring (32) is sleeved on the outside of the T-shaped rod (31) in the connecting groove (3). The two ends of the spring (32) are connected to the T-shaped rod (31) and the inner wall of the connecting groove (3), respectively.

4. A solar photovoltaic panel with retractable function as described in claim 1, characterized in that, An operating groove (4) is provided on one side of the top of the connecting frame (1). A transmission rod (41) passes through the bottom of the inner cavity of the operating groove (4). The transmission rod (41) is rotatably connected to the connecting frame (1) through a bearing. The bottom of the transmission rod (41) is connected to the top of the worm gear (51).

5. A solar photovoltaic panel with retractable function as described in claim 4, characterized in that, Both ends of the transmission rod (41) are fixedly connected to hand handles (42), and the hand handles (42) are symmetrically distributed.

6. A solar photovoltaic panel with retractable function as described in claim 4, characterized in that, The operating groove (4) is provided with a sealing block (43), and the sealing block (43) is elastic.

7. A solar photovoltaic panel with retractable function as described in claim 4, characterized in that, A handle (12) is installed on the top of the connecting frame (1). The handle (12) is arc-shaped and is located at the top center of the connecting frame (1).

8. A solar photovoltaic panel with retractable function as described in claim 1, characterized in that, The helix angle of the worm (51) is less than the equivalent friction angle of the meshing surface of the worm wheel (52) and the worm (51).

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