Portable outdoor solar energy storage equipment

Abstract

The invention discloses a portable outdoor solar energy storage device which comprises a main body, a photovoltaic controller is installed in the main body, two installation areas are symmetrically arranged on the two sides of the top of the main body, and flexible solar cells are installed in the installation areas; the storage barrel is fixedly connected in the mounting area, and an opening part is formed in the storage barrel; the hollow rod is coaxially and rotatably connected in the storage cylinder, one side of the flexible solar cell is fixedly connected to the hollow rod, and the other side of the flexible solar cell penetrates through the opening part and is fixedly connected with a connecting plate; the two pairs of multi-stage telescopic sleeves are installed on the two sides of the main body respectively, and each pair of multi-stage telescopic sleeves comprises two multi-stage telescopic sleeves which are located on the two sides of the flexible solar cells respectively. The bottom end of the multi-stage telescopic sleeve is rotationally connected with the main body, and the top end is rotationally connected with the connecting plate. According to the invention, the use convenience of the device is improved, and the influence of dust on the performance of the solar sheet is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of solar energy storage, in particular to a portable outdoor solar energy storage device. Background Art

[0002] With the emergence of flexible solar panels, people have also invented many portable solar charging devices, such as the Chinese patent with announcement number CN220673703U, which discloses a battery cell that can be folded up and the grip can be used as a handle, which not only plays the effect of grasping and carrying, but also has the effect of storing the battery cell; the battery cell is stored inside the shell and occupies less internal space of the main body, so that more batteries can be arranged inside the main body to increase the storage energy.

[0003] However, the above patent still has some defects. First, the unfolding and rolling of the flexible solar cell still need to be done manually, and the unfolding and rolling work cannot be fully automatic. The overall rolling and unfolding are more troublesome; and the above patent does not have an additional placement device. Therefore, after the solar cell is unfolded, in order to better absorb solar energy, it needs to be laid horizontally on the ground, which easily causes dust to fall on the cell, and the dust will affect the performance of the solar cell. Therefore, it is necessary to wipe the surface of the solar cell before and after use to prevent dust from affecting the performance of the solar cell. Summary of the invention

[0004] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the present invention is to provide a portable outdoor solar energy storage device, which can more conveniently roll up and unfold flexible solar cells and is not easy to collect dust, thereby improving the convenience of use of the equipment and avoiding the impact of dust on the performance of solar cells.

[0005] To achieve the above object, the present invention provides the following technical solutions: A portable outdoor solar energy storage device comprises a main body, a photovoltaic controller is installed in the main body, two installation areas are symmetrically provided on both sides of the top of the main body, and flexible solar cells are installed in the installation areas; A storage tube is fixedly connected in the installation area, and the storage tube is provided with an opening; A hollow rod is coaxially rotatably connected in the storage tube, one side of the flexible solar cell sheet is fixed to the hollow rod, and the other side passes through the opening and is fixed to a connecting plate; Two pairs of multi-stage telescopic sleeves are respectively installed on both sides of the main body, and each pair of multi-stage telescopic sleeves has two and are respectively located on both sides of the flexible solar cell sheet; the bottom end of the multi-stage telescopic sleeve is rotatably connected to the main body, and the top end thereof is rotatably connected to the connecting plate; The driving assembly is used to control the multi-stage telescopic sleeve to rotate around the rotating shaft at its bottom end and control the multi-stage telescopic sleeve to extend or retract, and is also used to control the hollow rod to rotate.

[0006] Preferably, the driving assembly includes two rotating shafts rotatably connected to both sides of the bottom of the main body and a plurality of compression springs installed in the multi-stage telescopic sleeve, the topmost pipe of the multi-stage telescopic sleeve is fixedly connected with a pull rope, and the pull rope is fixedly connected to the rotating shaft after passing through the multi-stage telescopic sleeve, the bottom end of the multi-stage telescopic sleeve is fixedly connected with a first gear, a second gear is installed on the rotating shaft, a reduction gear set is installed between the first gear and the second gear, and a transmission mechanism is installed between the rotating shaft and the hollow rod; the driving assembly also includes a driving motor installed at the bottom of the main body, and the driving motor is used to drive the two rotating shafts to rotate.

[0007] Preferably, the transmission mechanism includes a transmission shaft vertically rotatably connected in the main body and a first bevel gear fixedly connected to the outside of the hollow rod, a second bevel gear meshingly connected to the first bevel gear is fixedly connected to the top end of the transmission shaft, a third bevel gear is fixedly connected to the bottom end of the transmission shaft, and a fourth bevel gear meshingly connected to the third bevel gear is fixedly connected to the rotating shaft.

[0008] Preferably, the transmission mechanism further comprises a mounting sleeve coaxially rotatably connected to the outside of the hollow rod, a ratchet mechanism is installed between the mounting sleeve and the hollow rod, and the first bevel gear is coaxially fixed to the side surface of the mounting sleeve.

[0009] Preferably, two transmission mechanisms are provided between the hollow rod and the rotating shaft.

[0010] Preferably, a winding drum is fixedly connected to the rotating shaft, and the pull rope is fixedly connected to the winding drum.

[0011] Preferably, the driving motor is a dual-axis motor, a worm is fixedly connected to both ends of the driving motor respectively, and a worm wheel meshingly connected to the worm is coaxially fixedly connected to the rotating shaft.

[0012] Preferably, a conductive slip ring is installed on the top of the main body, one end of the conductive slip ring is fixed to the hollow rod, and the other end is fixed to the main body, and the conductive slip ring is electrically connected to the flexible solar cell sheet and the photovoltaic controller.

[0013] Preferably, the storage tube is provided with a wiping piece above the opening, and the wiping piece comprises a mounting shell and wiping cotton detachably connected to the mounting shell, and the wiping cotton abuts against the flexible solar panel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present application can adjust the rotation state of the drive motor through the cooperation of the storage tube, hollow rod, multi-stage telescopic sleeve, drive motor, first gear, second gear, reduction gear set, pull rope, and compression spring through the start-stop switch, thereby controlling the flexible solar cell sheet to automatically extend in parallel and automatically retract into the storage tube, thereby improving the convenience of using the equipment; and after the flexible solar cell sheet is fully opened, the flexible solar cell sheet can also be stably and horizontally suspended in the air, so that the flexible solar cell sheet is away from the ground, reducing the adhesion of dust, thereby ensuring the cleanliness of the light-absorbing surface of the flexible solar cell sheet, and avoiding the influence of dust on the performance of the solar cell sheet; and the two flexible solar cells are both horizontally unfolded, which can also facilitate the absorption of solar energy. On the whole, the convenience of using the solar energy storage device is improved, the adhesion of dust on the flexible solar cell sheet is avoided, and the stability of the light absorption efficiency of the solar cell sheet is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the flexible solar cell sheet of the present invention after being rolled into the storage cylinder; Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 It is an isometric schematic diagram of the overall structure of the flexible solar cell sheet of the present invention after it is fully unfolded; Figure 4 It is a front view schematic diagram of the overall structure of the flexible solar cell sheet of the present invention after it is fully unfolded; Figure 5 for Figure 4 Schematic diagram of the overall structural cross section in the middle DD direction; Figure 6 for Figure 5 A magnified schematic diagram of the structure at B in the middle; Figure 7 for Figure 4 Schematic diagram of the overall structural cross section in the CC direction; Figure 8 for Figure 7 Schematic diagram of the overall structural cross section in the EE direction; Fig. 9 It is an exploded schematic diagram of the overall structure of the present invention; Fig.10 for Fig. 9 Schematic diagram of the structure of the middle part; Fig.11 for Fig.10 Schematic diagram of the overall explosion of the structure.

[0016] In the figure: 1. main body; 11. base; 12. upper shell; 121. installation area; 21. photovoltaic controller; 22. battery pack; 23. front panel; 24. display panel; 3. flexible solar cell; 4. storage tube; 41. opening; 51. hollow rod; 52. connecting plate; 6. multi-stage telescopic sleeve; 71. rotating shaft; 711. winding drum; 72. compression spring; 73. pull rope; 741. first gear; 742. second gear; 743. reduction gear set; 751. transmission shaft; 752. first bevel gear; 753. second bevel gear; 754. third bevel gear; 755. fourth bevel gear; 756. installation sleeve; 757. ratchet mechanism; 76. drive motor; 771. worm; 772. worm wheel; 78. conductive slip ring; 8. wiping piece; 81. installation shell; 82. wiping cotton. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 - Fig.11 The present embodiment provides a portable outdoor solar energy storage device, including a main body 1, which mainly includes a base 11, an upper shell 12 and a photovoltaic controller 21 installed in the main body 1, and a battery pack 22 is also provided in the main body 1. The front side of the main body 1 has a front panel 23, a display panel 24 and a variety of jacks; two installation areas 121 are symmetrically provided on both sides of the top of the main body 1, and the two installation areas 121 are specifically located on both sides of the top of the upper shell 12, and flexible solar cells 3 are installed in the installation areas 121. After absorbing solar energy, the flexible solar cell 3 converts the solar energy into electrical energy to charge the battery pack 22; however, since the voltage output by the flexible solar cell 3 is directly related to the presence and strength of sunlight, and is not a constant value, in order to make the battery pack 22 have a stable charging voltage, a photovoltaic controller 21 is also provided in the main body 1. The battery pack 22 and the flexible solar cell 3 are electrically connected to the photovoltaic controller 21 through wires. The photovoltaic controller 21 is used to control the voltage of the flexible solar cell 3, so that it is converted into a stable voltage to charge the battery pack 22, and the photovoltaic controller 21 can also prevent the battery pack 22 from overcharging, over-discharging, output overload, overvoltage, and over-temperature. The user can select a suitable jack for power access as needed, and can read the power reserve of the device according to the display panel 24.

[0019] Furthermore, the existing roll-up solar energy storage device is not convenient for unfolding and rolling up the flexible solar cell 3, and it is not convenient to support the solar cell as a whole in parallel; in addition, after the user pulls out the flexible solar cell 3, it is generally placed directly on the ground, which will also cause dust adhesion problems, and if an additional support frame is carried to support the flexible solar cell 3, it will increase the burden of carrying the equipment; in this regard, the present invention has a storage cylinder 4 fixedly connected in the installation area 121, an opening 41 is opened on the storage cylinder 4, and a hollow rod 51 is coaxially rotatably connected in the storage cylinder 4, and one side of the flexible solar cell 3 is fixed to the hollow rod 51, and the other side passes through the opening 41 and is fixed to the connecting plate 52, and the connecting wires of the flexible solar cell 3 pass through the hollow rod 51 and are led out from one end of the hollow rod 51 and connected to the photovoltaic controller 21; install on both sides of the main body 1 There are two groups of multi-stage telescopic sleeves 6. The multi-stage telescopic sleeves 6 in this embodiment are composed of multiple pipe units connected in sequence. The pipe unit at the bottom has the largest diameter. There are two multi-stage telescopic sleeves 6 in each group, and the two multi-stage telescopic sleeves 6 are respectively located on both sides of the flexible solar cell 3. The bottom end of the multi-stage telescopic sleeve 6 is rotatably connected to the main body 1, and the top end of the multi-stage telescopic sleeve 6 is rotatably connected to the connecting plate 52; a driving component is also installed on the main body 1, and the driving component is used to control the extension or retraction of the multi-stage telescopic sleeve 6, and control the multi-stage telescopic sleeve 6 to rotate around the rotation axis of the bottom end. At the same time, the driving component is also used to control the rotation of the hollow rod 51. Through the rotation of the hollow rod 51 and the extension or retraction of the multi-stage telescopic sleeve 6 and the rotation of the multi-stage telescopic sleeve 6 around the bottom end, the flexible solar cell 3 can be unfolded and rolled up, and the fully unfolded flexible solar cell 3 can be horizontally supported.

[0020] Furthermore, the driving assembly includes two rotating shafts 71 rotatably connected to both sides of the bottom of the main body 1 and a plurality of compression springs 72 installed in the multi-stage telescopic sleeve 6. A compression spring 72 is arranged between two adjacent sleeves, and the multi-stage telescopic sleeve 6 can be fully expanded ( Figure 1 and Figure 3 The multi-stage telescopic sleeve 6 is in the unexpanded and fully expanded states respectively). A pull rope 73 is fixedly connected to the bottom of the topmost pipe unit in the multi-stage telescopic sleeve 6. The pull rope 73 passes through the multi-stage telescopic sleeve 6 and then passes through the bottom of the bottommost pipe unit and is fixedly connected to the rotating shaft 71. Specifically, a winding drum 711 is fixedly connected to the rotating shaft 71, and the pull rope 73 is fixedly connected to the winding drum 711. The winding drum 711 can facilitate the winding of the pull rope 73 and restrict the winding range of the pull rope 73. A first gear 741 is fixedly connected to the bottom end of the multi-stage telescopic sleeve 6, a second gear 742 is installed on the rotating shaft 71, and a reduction gear set 743 is installed between the first gear 741 and the second gear 742.

[0021] Further, see Fig.10and Fig.11 A transmission mechanism is installed between the rotating shaft 71 and the hollow rod 51, and two transmission mechanisms are provided between each hollow rod 51 and the rotating shaft 71, and the two transmission mechanisms are respectively installed at both ends of the hollow rod 51. Specifically, the transmission mechanism includes a transmission shaft 751 vertically rotatably connected in the main body 1 and a first bevel gear 752 fixedly connected to the outer side of the hollow rod 51, a second bevel gear 753 meshingly connected to the first bevel gear 752 is fixedly connected to the top of the transmission shaft 751, a third bevel gear 754 is fixedly connected to the bottom of the transmission shaft 751, and a fourth bevel gear 755 meshingly connected to the third bevel gear 754 is fixedly connected to the rotating shaft 71; Further, see Figure 5 - Figure 8 and Fig.10 , Fig.11 The transmission mechanism also includes a mounting sleeve 756 coaxially rotatably connected to the outside of the hollow rod 51 through a bearing, a ratchet mechanism 757 is installed between the mounting sleeve 756 and the hollow rod 51, and the first bevel gear 752 is coaxially fixed to the side of the mounting sleeve 756. When the flexible solar cell sheet 3 is rolled up, the pawl of the ratchet mechanism 757 is inserted into the ratchet teeth so that the driving motor 76 can drive the hollow rod 51 to rotate; when the flexible solar cell sheet 3 is unfolded, the pawl of the ratchet mechanism 757 slides on the ratchet, and the rotation of the hollow rod 51 is caused by the extension of the multi-stage telescopic sleeve 6 and The rotation of the multi-stage telescopic sleeve 6 around the bottom rotating shaft causes the flexible solar cell sheet 3 to be pulled and unfolded, thereby driving the hollow rod 51 to rotate. Through the ratchet mechanism 757, when the flexible solar cell sheet 3 is unfolded, the drive motor 76 does not drive the hollow rod 51 and the flexible solar cell sheet 3, thereby reducing the load of the drive motor 76 to a certain extent, which can relatively reduce the consumption of electric energy and achieve the purpose of energy saving. In addition, reducing the load can also reduce the pressure and wear on the mechanical parts of the drive motor 76, and can also extend the life of the drive motor 76 to a certain extent.

[0022] It should be noted here that the mounting sleeve 756 and the ratchet mechanism 757 do not have to be installed on the outer periphery of the hollow rod 51, but can also be installed on the rotating shaft 71 or the transmission shaft 751: when installed on the rotating shaft 71, the mounting sleeve 756 is coaxially connected to the rotating shaft 71 through a bearing, and then the ratchet mechanism 757 is installed between the mounting sleeve 756 and the rotating shaft 71, and the fourth bevel gear 755 is coaxially installed on the mounting sleeve 756; when installed on the transmission shaft 751, the mounting sleeve 756 is coaxially connected to the transmission shaft 751 by a bearing, and then the ratchet mechanism 757 is installed between the mounting sleeve 756 and the transmission shaft 751, and the third bevel gear 754 or the second bevel gear 753 is coaxially installed on the mounting sleeve 756.

[0023] Furthermore, the driving assembly also includes a driving motor 76 installed at the bottom of the main body 1, and the driving motor 76 is used to drive the two rotating shafts 71 to rotate. Specifically, the driving motor 76 is a dual-axis motor, and the two ends of the driving motor 76 are respectively fixed with worms 771, and the two rotating shafts 71 are fixed with worm wheels 772 that are meshed with the worms 771. The self-locking performance of the meshing of the worm wheels 772 and the worms 771 can ensure the stability when controlling the rotation of the multi-stage telescopic sleeve 6; at the same time, it also ensures that when the multi-stage telescopic sleeve is fully retracted, the compression spring has a thrust on the movable pipe unit of the multi-stage telescopic sleeve. If the rotating shaft is not locked, there may be a rotation problem, and the self-locking performance of the worm wheel and the worm ensures the overall stability of the fully flexible solar cell 3 after winding. It should also be noted that the present invention is provided with a start-stop switch of the driving motor 76 on the front panel 23, and the battery pack 22 is used to power the driving motor 76.

[0024] The following is a further introduction in combination with specific usage scenarios: when using the energy storage device, place the energy storage device in a well-lit outdoor location, then turn on the start / stop switch, and the meshing cooperation of the worm 771 and the worm wheel 772 can drive the rotating shaft 71 to rotate, and the cooperation of the second gear 742 on the rotating shaft, the first gear 741 at the bottom of the multi-stage telescopic sleeve 6, and the reduction gear set 743 can drive the multi-stage telescopic sleeve 6 to rotate, so that the angle between the multi-stage telescopic sleeve 6 and the main body 1 increases, and then the flexible solar cell sheet 3 is pulled, so that the flexible solar cell sheet 3 is The cell sheet 3 is unfolded; at the same time, the rotation of the rotating shaft 71 will also drive the winding drum 711 to rotate, and then the pull rope 73 is released, and then the multi-stage telescopic sleeve 6 is stretched as a whole under the action of the compression spring 72, so as to ensure that the flexible solar cell sheet 3 is kept horizontal as a whole, and to a certain extent, the solar cell sheet can be kept away from the ground, reduce the adhesion of dust, and then ensure the cleanliness of the light-absorbing surface of the flexible solar cell sheet 3, and avoid the influence of dust on the performance of the solar cell sheet; in addition, the two flexible solar cells 3 are both horizontally suspended and unfolded, which can also facilitate the absorption of solar energy to a certain extent. When the flexible solar cell sheet 3 is fully unfolded, under the cooperation of the first gear 741, the second gear 742, the reduction gear set 743, the worm wheel 772 and the worm 771, the multi-stage telescopic sleeve 6 will maintain a stable angle with the main body 1, and then stably support the flexible solar cell sheet 3. In addition, the flexible solar cell sheet 3, the side wall of the main body 1 and the multi-stage telescopic sleeve 6 are also constructed into a triangle, which further ensures the stability of the flexible solar cell sheet 3 after unfolding.

[0025] Furthermore, when the flexible solar cell sheet 3 needs to be rolled into the winding drum, the drive motor 76 is reversed by controlling the start-stop switch, and the rotating shaft 71 is rotated in the opposite direction under the meshing cooperation of the worm gear 772 and the worm 771, and then the multi-stage telescopic sleeve 6 is rotated in the opposite direction under the cooperation of the first gear 741, the second gear 742, and the reduction gear set 743, so that the angle between the multi-stage telescopic sleeve 6 and the side wall of the main body 1 is reduced; at the same time, the reverse rotation of the rotating shaft 71 causes the winding drum 711 to start winding the pull rope 73, thereby causing the multi-stage telescopic sleeve 6 to gradually retract and compress the compression spring 72. At the same time, the rotation of the rotating shaft 71, in cooperation with the fourth bevel gear 755, the third bevel gear 754, the transmission shaft 751, the first bevel gear 752, and the second bevel gear 753, will drive the hollow rod 51 to rotate, thereby causing the flexible solar cell sheet 3 to be rolled into the storage tube 4. When all the flexible solar cell sheets 3 are rolled into the storage tube 4, the multi-stage telescopic sleeve 6 rotates to a position that fits the side of the main body 1, and the multi-stage telescopic sleeve 6 is completely retracted under the pulling of the pull rope 73.

[0026] In summary, through the cooperation of the storage tube 4, the hollow rod 51, the multi-stage telescopic sleeve 6, the drive motor 76, the first gear 741, the second gear 742, the reduction gear set 743, the pull rope 73, and the compression spring 72, the rotation state of the drive motor 76 can be adjusted through the start-stop switch, thereby controlling the flexible solar cell 3 to automatically extend in parallel and automatically retract into the storage tube 4, thereby improving the convenience of using the device; and after the flexible solar cell 3 is fully opened, the horizontal state of the flexible solar cell 3 can also be stably supported, so that the flexible solar cell 3 is away from the ground, reducing the adhesion of dust, thereby ensuring the cleanliness of the light-absorbing surface of the flexible solar cell 3, and avoiding the dust from affecting the performance of the solar cell; and the two flexible solar cells 3 are both horizontally suspended and unfolded, which can also facilitate the absorption of solar energy. On the whole, the convenience of using the solar energy storage device is improved, the adhesion of dust on the flexible solar cell 3 is avoided, and the light absorption efficiency stability of the flexible solar cell 3 is improved.

[0027] Reference Figure 5 - Figure 7 and Fig.11 As a specific implementation of the embodiment of the present application, a conductive slip ring 78 is installed on the top of the main body 1, and one end of the conductive slip ring 78 is fixed to the hollow rod 51, and the other end is fixed to the main body 1, and the conductive slip ring 78 is electrically connected to the flexible solar cell sheet 3 and the photovoltaic controller 21.

[0028] In combination with specific usage scenarios, since the hollow rod 51 is in a rotating state during the process of rolling and unfolding the flexible solar cell sheet 3, this will inevitably cause the connecting wires between the flexible solar cell sheet 3 and the photovoltaic controller 21 to twist. This will easily cause the wire sheath of the connecting wire to tear and the metal wire to break in a long time, posing a safety hazard. The provision of the conductive slip ring 78 can avoid the problems of wire sheath tearing and metal wire breakage in the connecting wire.

[0029] Reference Figure 1 - Figure 3 As a specific implementation of an embodiment of the present application, a wiping piece 8 is provided above the opening 41 of the storage tube 4, and the wiping piece 8 includes a mounting shell 81 and a wiping cotton 82 detachably connected to the mounting shell 81, and the wiping cotton 82 abuts against the flexible solar sheet.

[0030] In combination with specific usage scenarios, by setting a wiping piece 8, when the flexible solar cell 3 is in the process of stretching or rolling up, the wiping cotton 82 can clean the dust on the flexible solar cell 3, so as to ensure the cleanliness of the flexible solar cell 3, thereby avoiding the dust problem affecting the flexible solar cell 3 to absorb light energy, ensuring the photoelectric conversion efficiency, and improving the energy storage efficiency.

[0031] In order to facilitate the transportation of the device, four universal wheels can be symmetrically installed at the bottom of the main body 1, and a push rod can be installed on the side of the main body 1, so that the movement of the device can be facilitated.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A portable outdoor solar energy storage device, comprising a main body (1), a photovoltaic controller (21) installed in the main body (1), two installation areas (121) symmetrically arranged on both sides of the top of the main body (1), and flexible solar cells (3) installed in the installation areas (121), characterized in that: A storage tube (4) is fixedly connected in the installation area (121), and the storage tube (4) is provided with an opening (41); A hollow rod (51) is coaxially rotatably connected in the storage cylinder (4); one side of the flexible solar cell sheet (3) is fixedly connected to the hollow rod (51), and the other side passes through the opening (41) and is fixedly connected to a connecting plate (52); Two pairs of multi-stage telescopic sleeves (6) are respectively mounted on both sides of the main body (1), each pair of multi-stage telescopic sleeves (6) has two and are respectively located on both sides of the flexible solar cell sheet (3); the bottom end of the multi-stage telescopic sleeve (6) is rotatably connected to the main body (1), and the top end of the multi-stage telescopic sleeve (6) is rotatably connected to the connecting plate (52); The driving assembly is used to control the multi-stage telescopic sleeve (6) to rotate around the rotation axis at its bottom end and control the extension or retraction of the multi-stage telescopic sleeve (6), and is also used to control the rotation of the hollow rod (51).

2. A portable outdoor solar energy storage device according to claim 1, characterized in that: The driving assembly comprises two rotating shafts (71) rotatably connected to two sides of the bottom of the main body (1) and a plurality of compression springs (72) installed in the multi-stage telescopic sleeve (6); a pull rope (73) is fixedly connected to the topmost pipe of the multi-stage telescopic sleeve (6); the pull rope (73) passes through the multi-stage telescopic sleeve (6) and is fixedly connected to the rotating shaft (71); a first gear (741) is fixedly connected to the bottom end of the multi-stage telescopic sleeve (6); a second gear (742) is installed on the rotating shaft (71); a reduction gear set (743) is installed between the first gear (741) and the second gear (742); and a transmission mechanism is installed between the rotating shaft (71) and the hollow rod (51); the driving assembly also comprises a driving motor (76) installed at the bottom of the main body (1); the driving motor (76) is used to drive the two rotating shafts (71) to rotate.

3. A portable outdoor solar energy storage device according to claim 2, characterized in that: The transmission mechanism comprises a transmission shaft (751) vertically rotatably connected in the main body (1) and a first bevel gear (752) fixedly connected to the outside of the hollow rod (51); a second bevel gear (753) meshingly connected to the first bevel gear (752) is fixedly connected to the top end of the transmission shaft (751); a third bevel gear (754) is fixedly connected to the bottom end of the transmission shaft (751); and a fourth bevel gear (755) meshingly connected to the third bevel gear (754) is fixedly connected to the rotating shaft (71).

4. A portable outdoor solar energy storage device according to claim 3, characterized in that: The transmission mechanism (75) further comprises a mounting sleeve (756) coaxially rotatably connected to the outside of the hollow rod (51), a ratchet mechanism (757) being installed between the mounting sleeve (756) and the hollow rod (51), and the first bevel gear (752) being coaxially fixed to the mounting sleeve (756).

5. A portable outdoor solar energy storage device according to claim 2, characterized in that: Two transmission mechanisms (75) are arranged between the hollow rod (51) and the rotating shaft (71).

6. A portable outdoor solar energy storage device according to claim 2, characterized in that: A wire winding drum (711) is fixedly connected to the rotating shaft (71), and the pull rope (73) is fixedly connected to the wire winding drum (711).

7. A portable outdoor solar energy storage device according to claim 2, characterized in that: The drive motor (76) is a double-shaft motor, with worms (771) fixedly connected to both ends of the drive motor (76), and a worm wheel (772) meshingly connected to the worm (771) coaxially fixedly connected to the rotating shaft (71).

8. A portable outdoor solar energy storage device according to claim 1, characterized in that: A conductive slip ring (78) is installed on the top of the main body (1), one end of the conductive slip ring (78) is fixedly connected to the hollow rod (51), and the other end is fixedly connected to the main body (1), and the conductive slip ring (78) is electrically connected to the flexible solar cell sheet (3) and the photovoltaic controller (21).

9. A portable outdoor solar energy storage device according to claim 1, characterized in that: The storage cylinder (4) is provided with a wiping piece (8) located above the opening (41), the wiping piece (8) comprising a mounting shell (81) and wiping cotton (82) detachably connected to the mounting shell (81), the wiping cotton (82) abutting against the flexible solar panel.

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