Energy storage equipment

Abstract

The invention belongs to the technical field of energy storage, and discloses an energy storage device, the energy storage device comprises an energy storage host, a plurality of walking wheel sets and / or a plurality of paddle assemblies, the energy storage host is provided with a discharge port and a plurality of dismounting ports, each dismounting port is provided with a driving part and an electric energy output port, walking wheels are detachably installed at the dismounting ports, and the paddle assemblies are connected with the discharge port. The driving part can drive the wheel arms to move relative to the disassembly and assembly opening, so that the walking wheel set has a contraction state and a walking state, the electric energy output port transmits electric energy to the rolling wheels through the wheel arms, the paddle arms are detachably installed on the disassembly and assembly opening of the energy storage main machine, and the driving part can drive the paddle arms to move relative to the disassembly and assembly opening. The paddle assembly has a folded state and an unfolded state, and the electric energy output port transmits electric energy to the paddle through the paddle arm. The energy storage equipment has the ground walking and / or low-altitude flying functions, manual carrying by a user is not needed, and the user satisfaction degree of the energy storage equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to an energy storage equipment. Background Art

[0002] The weight of existing energy storage power supplies increases with the increase in stored power. Users have difficulty in handling and transporting heavy energy storage power supplies. If the road conditions are poor, the transportation of energy storage power supplies will be even more difficult.

[0003] Therefore, there is an urgent need for an energy storage device that is easy to transport and carry, reduces the labor intensity of users, and improves user satisfaction with the energy storage device. Summary of the Invention

[0004] An object of the present invention is to provide an energy storage device that has the function of walking on the ground and / or flying at low altitude, does not require manual carrying by the user, and improves user satisfaction with the energy storage device.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention discloses an energy storage device, comprising: an energy storage device, comprising: an energy storage host, wherein the energy storage host is provided with a discharge port and a plurality of disassembly ports, wherein the disassembly ports are provided with a driving member and an electric energy output port; a plurality of walking wheel groups, comprising: a wheel arm and a roller mounted on the wheel arm, wherein the wheel arm is detachably mounted on the disassembly port of the energy storage host, and the driving member can drive the wheel arm to move relative to the disassembly port, so that the walking wheel group has a retracted state and a walking state, wherein in the retracted state, the walking wheel group is partially retracted into the energy storage host, and in the walking state, the walking wheel group extends out of the energy storage host and can drive the energy storage host to move. The machine moves, and the power output port transmits power to the roller through the wheel arm; and / or, a plurality of blade assemblies, including: a paddle arm and a blade installed on the paddle arm, the paddle arm is detachably installed on the disassembly and assembly port of the energy storage host, and the driving member can drive the paddle arm to move relative to the disassembly and assembly port, so that the blade assembly has a folded state and an unfolded state, in the folded state, the blade assembly is arranged along the extension direction of the side wall of the energy storage host, and in the unfolded state, the blade assembly is opened relative to the energy storage host and can drive the energy storage device to fly, and the power output port transmits power to the blade through the paddle arm.

[0007] In some embodiments, the driving member includes a driving source and a first gear connected to an output shaft of the driving source; a second gear meshing with the first gear is provided on the paddle arm, and the first gear can drive the second gear to rotate so that the blade assembly moves relative to the energy storage host; and / or, a rack meshing with the first gear is provided on the wheel arm, and the first gear can drive the rack to move so that the walking wheel assembly can be extended and retracted relative to the energy storage host.

[0008] In some embodiments, the driving member drives a source and a limiting protrusion connected to the output shaft of the driving source, and the paddle arm or the wheel arm is provided with a limiting hole that cooperates with the limiting protrusion. When the limiting protrusion rotates, it can drive the blade assembly and the walking wheel group to move relative to the energy storage host.

[0009] In some embodiments, the energy storage device further includes a photovoltaic module, the photovoltaic module includes a first photovoltaic panel disposed on top of the energy storage host, and / or the photovoltaic module includes a second photovoltaic panel disposed on the paddle arm.

[0010] In some specific embodiments, the energy storage host is provided with a mounting portion, the mounting portion has a mounting cavity, and an opening is provided on the side wall of the mounting cavity. The photovoltaic module also includes a third photovoltaic panel retractably arranged in the mounting cavity, and the third photovoltaic panel can extend out of the mounting cavity from the opening.

[0011] In some more specific embodiments, the energy storage host has a first mounting slot, the mounting portion is movably mounted in the first mounting slot, and the mounting portion has a received state received in the first mounting slot and an extended state extended out of the first mounting slot.

[0012] In some more specific embodiments, a first rotating rod is provided on the bottom wall of the first mounting groove, and a second rotating rod connected to the first rotating rod is provided on the mounting portion, and the mounting portion can move to the extended state when the second rotating rod is relative to the first rotating rod.

[0013] In some embodiments, the energy storage host is provided with discharge ports of various specifications.

[0014] In some specific embodiments, the energy storage host is provided with a second mounting slot, and the plurality of discharge ports are provided on the slot wall of the second mounting slot; the energy storage host is provided with a rotatably connected sealing cover, and the sealing cover can be snapped onto the second mounting slot to hide the plurality of discharge ports.

[0015] In some embodiments, the first and second ends of the energy storage host are both provided with telescopic slots, the wheel arm includes a connecting frame and a telescopic structure, one end of the connecting frame is telescopically installed in the telescopic slot, one end of the telescopic structure is connected to the other end of the connecting frame, and the other end of the telescopic structure is connected to the roller.

[0016] The beneficial effects of the energy storage device of the present invention are as follows: since the energy storage device has a detachable walking wheel group and blade assembly, during actual use, the energy storage device can be installed with only the walking wheel group, in which case the energy storage device can walk on land, or with only the blade assembly, in which case the energy storage device can achieve low-altitude flight, or the walking wheel group and the blade assembly can be installed at the same time. At this time, since the walking wheel group has a retracted state and a walking state, and the blade assembly has an expanded state and a folded state, the working state can be manually switched according to actual needs so that the energy storage device can switch between the land walking and low-altitude flight states. As a result, the energy storage device has the functions of walking on the ground and / or low-altitude flight, and does not require manual carrying by the user, thereby improving user satisfaction with the energy storage device.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of the energy storage device according to an embodiment of the present invention when the traveling wheel assembly is in a traveling state and the blade assembly is in a folded state;

[0019] Figure 2 yes Figure 1 A schematic structural diagram of another direction of the structure shown;

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure when the structural sealing cover is opened;

[0021] Figure 4 yes Figure 1 a top view of the structure shown;

[0022] Figure 5 yes Figure 1 A schematic diagram of the structure in which the third photovoltaic panel of the structure shown is extended;

[0023] Figure 6 is a structural schematic diagram of the energy storage device according to an embodiment of the present invention when the traveling wheel assembly is in a retracted state and the blade assembly is in an extended state;

[0024] Figure 7 yes Figure 6 A schematic structural diagram of another direction of the structure shown;

[0025] Figure 8 yes Figure 6 a top view of the structure shown;

[0026] Figure 9 yes Figure 1 The structure shown is a schematic diagram of the structure with the blade assembly removed;

[0027] Figure 10 yes Figure 6 Schematic diagram of the structure after removing the traveling wheel assembly.

[0028] Reference numerals:

[0029] 10. Energy storage host; 101. Discharge port; 102. First installation slot; 103. Second installation slot; 104. Disassembly port;

[0030] 20, traveling wheel set; 201, wheel arm; 2011, connecting frame; 2012, telescopic structure; 202, roller;

[0031] 30. Blade assembly; 301. Paddle arm; 3011. Arm body; 3012. Connecting portion; 302. Blade;

[0032] 40. Photovoltaic module; 401. First photovoltaic panel; 402. Second photovoltaic panel; 403. Third photovoltaic panel;

[0033] 50. Mounting portion; 501. Opening; 60. First rotating rod; 70. Second rotating rod; 80. Sealing cover. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0035] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," "right," "front," and "rear" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0037] The present invention discloses an energy storage device, referring to Figure 1 As shown, the energy storage device of this embodiment includes an energy storage host 10, multiple walking wheel groups 20 and multiple blade assemblies 30. The energy storage host 10 is provided with a discharge port 101 and multiple disassembly ports 104. The disassembly port 104 is provided with a driving member (not shown) and an electric energy output port (not shown). The multiple walking wheel groups 20 include a wheel arm 201 and a roller 202 mounted on the wheel arm 201. The wheel arm 201 is detachably mounted on the disassembly port 104 of the energy storage host 10. The driving member can drive the wheel arm 201 to move relative to the disassembly port 104. The walking wheel group 20 has a retracted state and a walking state. In the retracted state ( Figure 6 and Figure 7 As shown), the walking wheel group 20 is partially retracted into the energy storage host 10, and in the walking state ( Figure 2 and Figure 3 As shown), the walking wheel assembly 20 extends out of the energy storage host 10 and is capable of driving the energy storage host 10 to walk, and the power output port transmits power to the roller 202 through the wheel arm 201. The blade assembly 30 includes a paddle arm 301 and a blade 302 mounted on the paddle arm 301. The paddle arm 301 is detachably mounted on the disassembly and assembly port 104 of the energy storage host 10. The driving member can drive the paddle arm 301 to move relative to the disassembly and assembly port 104, so that the blade assembly 30 has a folded state and an unfolded state. In the folded state, the blade assembly 30 is arranged along the extension direction of the side wall of the energy storage host 10. In the unfolded state, the blade assembly 30 is open relative to the energy storage host 10 and is capable of driving the energy storage device to fly. The power output port transmits power to the blade 302 through the paddle arm 301. A battery module is provided in the energy storage host 10, and the battery module can output power through the power output port.

[0038] It is understandable that, since the energy storage device of this embodiment has a detachable running wheel assembly 20 and a blade assembly 30, in actual use, the energy storage device can be installed with only the running wheel assembly 20 (such as Figure 9 As shown), the energy storage device can now travel on land, or only the blade assembly 30 can be installed (as shown Figure 10 As shown), the energy storage device can achieve low-altitude flight, and the walking wheel assembly 20 and the blade assembly 30 can also be installed at the same time (as shown Figure 1As shown), at this time, since the walking wheel assembly 20 has a retracted state and a walking state, and the blade assembly 30 has an expanded state and a folded state, the working state can be manually switched according to actual needs so that the energy storage device can switch between the land walking state and the low-altitude flight state. As a result, the energy storage device has the function of ground walking and / or low-altitude flight, and does not require manual carrying by the user, thereby improving the user satisfaction of the energy storage device.

[0039] Optionally, the driving member includes a driving source and a first gear connected to an output shaft of the driving source. The paddle arm 301 is provided with a second gear that meshes with the first gear. The first gear can drive the second gear to rotate, thereby causing the paddle assembly 30 to rotate relative to the energy storage host 10. It is understood that in actual operation, the battery module can power the driving member. When the driving member drives the first gear to rotate, the second gear can also rotate, causing the paddle assembly 30 to move relative to the energy storage host 10, thereby conveniently switching the paddle assembly 30 back and forth between the deployed state and the folded state.

[0040] Optionally, the driving member includes a driving source and a first gear connected to an output shaft of the driving source. The wheel arm 201 is provided with a rack meshing with the first gear. The first gear can drive the rack to move, so that the running wheel assembly 20 can be extended and retracted relative to the energy storage host 10. It is understood that in actual operation, the battery module can power the driving member. When the driving member drives the first gear to rotate, the rack can move accordingly, so that the running wheel assembly 20 can be extended and retracted relative to the energy storage host 10, and the running wheel assembly 20 can switch back and forth between a retracted state and a running state.

[0041] In an alternative embodiment of the present invention, the driving member drives a source and a limiting protrusion connected to the output shaft of the driving source, and a limiting hole that cooperates with the limiting protrusion is provided on the paddle arm 301 or the wheel arm 201. When the limiting protrusion rotates, it can drive the blade assembly 30 or the running wheel group 20 to move relative to the energy storage host 10. It is understandable that in the actual working process, the battery module can supply power to the driving member, and when the driving member rotates, it can directly drive the paddle arm 301 to rotate or the wheel arm 201 to move, so that the blade assembly 30 or the running wheel group 20 can move relative to the energy storage host 10, thereby conveniently switching the blade assembly 30 back and forth between the unfolded state and the folded state, and switching the running wheel group 20 back and forth between the retracted state and the running state.

[0042] Optionally, the photovoltaic module 40 is provided on the energy storage host 10 and / or the paddle arm 301 of the blade assembly 30. It is understood that by providing the photovoltaic module 40 on the energy storage host 10 and / or the paddle arm 301 of the blade assembly 30, the electricity generated by the photovoltaic module 40 can be stored in the battery module, which can help improve the power generation efficiency of the energy storage device, thereby extending the discharge time and storage capacity of the energy storage host 10, and improving user satisfaction.

[0043] Further optional, refer to Figure 4 and Figure 8 As shown, the photovoltaic module 40 includes a first photovoltaic panel 401 disposed on top of the energy storage host 10. It is understood that the top area of the energy storage host 10 is relatively large, and the provision of the first photovoltaic panel 401 on top of the energy storage host 10 can help improve the power generation efficiency of the energy storage device, thereby extending the discharge time of the energy storage host 10.

[0044] Further optional, refer to Figure 4 As shown, the photovoltaic module 40 includes a second photovoltaic panel 402 provided on the paddle arm 301. It is understandable that the second photovoltaic panel 402 provided on the outer wall of the paddle arm 301 can further improve the power generation efficiency of the energy storage device, thereby extending the discharge time of the energy storage host 10.

[0045] Further optional, refer to Figure 5 As shown, the energy storage host 10 is provided with a mounting portion 50 having a mounting cavity with an opening 501 formed on a sidewall thereof. The photovoltaic module 40 also includes a third photovoltaic panel 403 retractably disposed within the mounting cavity, capable of extending out of the mounting cavity through the opening 501. It is understood that, during actual use, the third photovoltaic panel 403 can be pulled out of the mounting cavity, thereby increasing the power generation efficiency of the energy storage host 10 and thereby extending the discharge time of the energy storage host 10. Furthermore, optionally, the mounting cavity has a rectangular cross-section, with openings 501 formed on each of the four sidewalls thereof, and there are four third photovoltaic panels 403. Thus, increasing the number of third photovoltaic panels 403 can further improve the power generation efficiency of the energy storage device, thereby extending the discharge time of the energy storage host 10. Furthermore, optionally, each third photovoltaic panel 403 includes multiple retractable sub-panels, i.e., between two adjacent sub-panels, one sub-panel has a receiving slot, and the other sub-panel can be retracted into the receiving slot. Therefore, when the third photovoltaic panel 403 is fully unfolded, it has a larger area, which is beneficial to improving the power generation efficiency of the energy storage device, thereby extending the discharge time of the energy storage host 10.

[0046] Of course, in other embodiments of the present invention, the number of the third photovoltaic panels 403 and the number of sub-panels included in the third photovoltaic panel 403 can be adjusted according to actual needs.

[0047] Further optional, refer to Figure 5As shown, the energy storage host 10 has a first mounting slot 102, and the mounting portion 50 is movably mounted in the first mounting slot 102. The mounting portion 50 has a received state in the first mounting slot 102 and an extended state extending out of the first mounting slot 102. It is understandable that the mounting portion 50 is movably mounted in the first mounting slot 102, and when not in use, the mounting portion 50 can be accommodated in the first mounting slot 102. On the one hand, this improves the aesthetics of the energy storage host 10, reduces the space occupied by the energy storage host 10, and facilitates the storage of the energy storage host 10. On the other hand, it can prevent external pollutants, water vapor and other structures from entering the mounting cavity, reducing the chance of the third photovoltaic panel 403 being contaminated and reducing the chance of the third photovoltaic panel 403 being stuck by foreign objects during extraction.

[0048] Further optional, refer to Figure 5 As shown, a first rotating rod 60 is provided on the bottom wall of the first mounting groove 102, and a second rotating rod 70 connected to the first rotating rod 60 is provided on the mounting portion 50. When the second rotating rod 70 is relative to the first rotating rod 60, the mounting portion 50 can move to an extended state. It is understandable that in actual operation, the operator operates the mounting portion 50 to disengage from the first mounting groove 102. Due to the provision of the first rotating rod 60 and the second rotating rod 70, the angle of the first rotating rod 60 relative to the bottom wall of the first mounting groove 102 and the angle of the second rotating rod 70 relative to the first rotating rod 60 can be adjusted, so that the angle of the third photovoltaic panel 403 can be adjusted according to the position of the sun, ensuring that the third photovoltaic panel 403 can always have an appropriate angle relative to the sun, thereby improving the light utilization rate of the third photovoltaic panel 403 and improving the power generation efficiency of the energy storage device.

[0049] In order to ensure that the third photovoltaic panel 403 can be maintained at a specified angle, a damping member is also installed on the rotating shaft of the second rotating rod 70. This can reduce the probability of the third photovoltaic panel 403 rotating under the action of external force during the power generation process, ensuring that the third photovoltaic panel 403 can always have a suitable angle corresponding to the sun, thereby improving the light utilization rate of the third photovoltaic panel 403 and improving the power generation efficiency of the energy storage device.

[0050] Of course, in the embodiment of the present invention, a telescopic rod is provided on the bottom wall of the first mounting slot 102, and the mounting portion 50 is hingedly connected to the telescopic rod. During actual use, the mounting portion 50 can be operated to extend the telescopic rod, thereby extending the mounting portion 50 from the first mounting slot 102. The mounting portion 50 can then be rotated to maintain an appropriate angle facing the sun. In other words, the structure for achieving the extension and rotation of the mounting portion 50 within the first mounting slot 102 can be selected according to actual needs, and the existing structure of the first rotating rod 60 and the second rotating rod 70 is not required.

[0051] Optional, reference Figure 3 As shown, the energy storage host 10 is provided with discharge ports 101 of various specifications. Discharge ports 101 can be in various forms, such as Type-A, Type-B, Type-C, three-hole sockets, and two-hole sockets. Thus, the energy storage host 10 of this embodiment can charge mobile devices (e.g., mobile phones, computers) or electrical appliances (e.g., refrigerators, electric heaters), thereby enabling the energy storage device of this embodiment to charge a variety of electrical devices, expanding the compatibility of the energy storage device and improving user satisfaction.

[0052] Further optional, refer to Figure 2-Figure 3 As shown, the energy storage device 10 is provided with a second mounting slot 103, with multiple discharge ports 101 disposed on the wall of the second mounting slot 103. A rotatably connected sealing cover 80 is provided on the energy storage device 10. The sealing cover 80 snaps onto the second mounting slot 103 to conceal the multiple discharge ports 101. It will be appreciated that the provision of the sealing cover 80 allows the multiple discharge ports 101 to be concealed when the energy storage device is not in use, preventing dirt or moisture from entering the discharge ports 101. This ensures cleanliness at the discharge ports 101, reduces the failure rate of the discharge ports 101, and ensures stable discharge from the discharge ports 101. To prevent the sealing cover 80 from falling off and exposing the discharge ports 101 during movement or flight, a latching protrusion can be provided on the sealing cover 80, and a latching hole can be provided in the second mounting slot 103. This latching structure secures the sealing cover 80 to the energy storage device 10. Alternatively, the sealing cover 80 can be secured using screws, fixing pins, or other similar structures.

[0053] Optional, reference Figure 2 As shown, the energy storage host 10 is provided with a disassembly and assembly port 104, and the blade assembly 30 includes a paddle arm 301 and a blade 302. One end of the paddle arm 301 is rotatably connected to the disassembly and assembly port 104, and the blade 302 is connected to the other end of the paddle arm 301. It can be understood that one end of the paddle arm 301 is installed in the disassembly and assembly port 104 by plugging, and the paddle arm 301 can move relative to the disassembly and assembly port 104, which facilitates the installation and disassembly of the blade assembly 30 on the one hand, and facilitates the folding or unfolding of the blade assembly 30 on the other hand. Further optionally, the two oppositely arranged side walls (left wall and right side wall) of the energy storage host 10 are each provided with two disassembly and assembly ports 104, and four blade assemblies 30 are installed on the energy storage host 10, thereby ensuring the flight stability of the energy storage device. Further optionally, the two blade assemblies 30 provided on the same side wall are partially overlapped in the upper and lower directions of the energy storage host 10 in the folded state. This can reduce the size of the entire energy storage device when the blade assembly 30 is in the folded state, thereby facilitating storage.

[0054] Further optional, refer to Figure 2As shown, the paddle arm 301 includes an arm body 3011 and a plug-in portion 3012. One end of the plug-in portion 3012 is rotatably connected to the arm body 3011, and the other end is plugged into the disassembly opening 104. The paddle arm 301 is divided into two parts, and the plug-in portion 3012 is easily inserted into or removed from the disassembly opening 104. The arm body 3011 can rotate relative to the plug-in portion 3012, making it easy to fold the entire paddle arm 301.

[0055] Optional, reference Figure 2-Figure 3 As shown, the first and second ends (front and rear ends) of the energy storage host 10 are both provided with a disassembly opening 104, and the wheel arm 201 further includes a connecting frame 2011 and a telescopic structure 2012. One end of the connecting frame 2011 is movably mounted on the disassembly opening 104, one end of the telescopic structure 2012 is connected to the other end of the connecting frame 2011, and the other end of the telescopic structure 2012 is connected to the roller 202. It can be understood that by providing the connecting frame 2011, the walking wheel assembly 20 can be switched between the retracted state and the walking state. In actual operation, only the driving member needs to drive the connecting frame 2011 to extend or retract from the disassembly opening 104, which is very convenient. Through the additional telescopic structure 2012, after the connecting frame 2011 is pulled out of the disassembly opening 104, it can be expanded a second time, so that the distance between the two rollers 202 on the same connecting frame 2011 is increased, thereby improving the stability of the energy storage device when walking on land. It should be noted that the telescopic structure 2012 of this embodiment is a telescopic rod, that is, a structure including multiple sleeve rods. This structure is a prior art and does not need to be described in detail here.

[0056] Throughout this specification, references to "some embodiments," "other embodiments," and the like indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0057] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An energy storage device, characterized in that: include: An energy storage host, wherein the energy storage host is provided with a discharge port and multiple disassembly ports, wherein the disassembly ports are provided with a drive member and an electric energy output port; A plurality of walking wheel groups, comprising: a wheel arm and a roller mounted on the wheel arm, wherein the wheel arm is detachably mounted on the disassembly and assembly port of the energy storage host, and the driving member can drive the wheel arm to move relative to the disassembly and assembly port, so that the walking wheel group has a retracted state and a walking state, in which the walking wheel group is partially retracted into the energy storage host, and in the walking state, the walking wheel group extends out of the energy storage host and can drive the energy storage host to walk, and the power output port transmits power to the roller through the wheel arm; and / or, Multiple blade assemblies include: a paddle arm and a blade installed on the paddle arm, the paddle arm is detachably installed on the disassembly and assembly port of the energy storage host, the driving member can drive the paddle arm to move relative to the disassembly and assembly port, so that the blade assembly has a folded state and an unfolded state. In the folded state, the blade assembly is arranged along the extension direction of the side wall of the energy storage host. In the unfolded state, the blade assembly is opened relative to the energy storage host and can drive the energy storage device to fly, and the power output port transmits power to the blade through the paddle arm.

2. The energy storage device according to claim 1, characterized in that The driving member includes a driving source and a first gear connected to an output shaft of the driving source; The paddle arm is provided with a second gear meshing with the first gear, and the first gear can drive the second gear to rotate so that the blade assembly moves relative to the energy storage host; and / or, The wheel arm is provided with a rack meshing with the first gear, and the first gear can drive the rack to move, so that the walking wheel assembly can be extended and retracted relative to the energy storage host.

3. The energy storage device according to claim 1, characterized in that The driving member drives a source and a limiting protrusion connected to the output shaft of the driving source. The paddle arm or the wheel arm is provided with a limiting hole that cooperates with the limiting protrusion. When the limiting protrusion rotates, it can drive the blade assembly and the walking wheel group to move relative to the energy storage host.

4. The energy storage device according to claim 1, characterized in that The energy storage device further includes a photovoltaic module, wherein the photovoltaic module includes a first photovoltaic panel disposed on the top of the energy storage host, and / or the photovoltaic module includes a second photovoltaic panel disposed on the paddle arm.

5. The energy storage device according to claim 4, characterized in that The energy storage host is provided with a mounting portion, the mounting portion has a mounting cavity, and an opening is provided on the side wall of the mounting cavity. The photovoltaic module also includes a third photovoltaic panel telescopically arranged in the mounting cavity, and the third photovoltaic panel can extend out of the mounting cavity from the opening.

6. The energy storage device according to claim 5, characterized in that The energy storage host has a first mounting slot, the mounting portion is movably mounted in the first mounting slot, and the mounting portion has a received state received in the first mounting slot and an extended state extended out of the first mounting slot.

7. The energy storage device according to claim 6, characterized in that A first rotating rod is provided on the bottom wall of the first mounting groove, and a second rotating rod connected to the first rotating rod is provided on the mounting portion. When the second rotating rod is relative to the first rotating rod, the mounting portion can move to the extended state.

8. The energy storage device according to any one of claims 1 to 5, characterized in that: The energy storage host is provided with discharge ports of various specifications.

9. The energy storage device according to claim 7, characterized in that: The energy storage host is provided with a second mounting groove, and the plurality of discharge ports are provided on the groove wall of the second mounting groove; the energy storage host is provided with a rotatably connected sealing cover, and the sealing cover can be buckled into the second mounting groove to hide the plurality of discharge ports.

10. The energy storage device according to any one of claims 1 to 5, characterized in that: The first and second ends of the energy storage host are both provided with disassembly and assembly ports, and the wheel arm includes a connecting frame and a telescopic structure. One end of the connecting frame can be movably installed on the disassembly and assembly port, one end of the telescopic structure is connected to the other end of the connecting frame, and the other end of the telescopic structure is connected to the roller.

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