Portable power supply device

Abstract

To simplify, downsize, and make lighter a configuration of a mobile power supply, shorten the installation work, reduce costs, and expand a degree of freedom of movement, allowing installation in small spaces without taking up much space.SOLUTION: A power supply device 1 has a pair of solar panels 2 and 3, a rotation shaft 4 that allows the pair of solar panels 2 and 3 to rotate and change between a folded state and an unfolded state, a pair of frames 5 and 6 that fix the pair of solar panels 2 and 3, respectively, a pair of wheels 7, 8 and a pair of stoppers 5g and 6g provided at one ends of lower sides 5b and 6b of the frames 5 and 6 on the opposite side to the upper sides 5a and 6a of the frames 5 and 6 having the rotation shaft 4, a pair of stoppers 9 and 10 provided at the other ends of the lower sides 5b and 6b, and a pair of legs 11 and 12 attached to the lower sides 5b and 6b of the frames 5 and 6 on which the wheels 7 and 8 and the stoppers 5g, 6g, 9 and 10 are provided, and can be opened and closed with respect to the lower sides 5b and 6b.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a mobile power supply device for supporting and moving a solar panel.

Background Art

[0002] As shown in Patent Document 1, in order to provide a solar power generation device that can be more compactly stored with the solar panel and its pedestal assembled, can easily and quickly move and install the solar panel, and can adjust the elevation angle of the solar panel in the installed state, the solar power generation device 1 includes a rectangular first solar panel 2 and a second solar panel 3, a hinge mechanism that makes the first solar panel 2 and the second solar panel 3 rotatable by changing the relative elevation angle between the first solar panel 2 and the second solar panel 3, a first support column 5 that supports the front side of the first solar panel 2 and the second solar panel 3 in a height-adjustable manner, and a second support column 6 that supports the rear side of the first solar panel 2 and the second solar panel 3 in a height-adjustable manner.

[0003] As shown in Patent Document 2, it can also be applied to many uses such as communication functions, monitoring functions, blowing functions, cooling functions, and / or lighting. It has the support strength and stability of the solar panel, simplifies the operation of adjusting the elevation angle, vertical direction, and left and right directions of the solar panel, and expands the range of positions and functions of electrical appliances. It includes a trolley 2, a power supply unit 4 that houses a storage battery, a control unit 5 that houses a control circuit, etc., a structural part 6 provided on the trolley 2, a solar panel 7 whose one end 71 is rotatably connected to the structural part 6 and the other end is connected to the structural part 6 via a free stay, a fixture 8 for attaching to the structural part 6, a pair of first arms 10 having links 9, a rotation mechanism having a lock 121 that horizontally rotates the fixture 8 and locks it at a predetermined position, and a second arm 13 that is connected to the first arm 10 via a connecting part 11 and fixes electrical appliances 16, 17.

Prior Art Documents

Patent Documents

[0004] [Patent Document 1] Japanese Patent Publication No. 2015-188296 [Patent Document 2] Japanese Patent Publication No. 2022-108371 [Overview of the project] [Problems that the invention aims to solve]

[0005] However, the invention described in Patent Document 1 is still not entirely satisfactory in that the structure of the mobile power supply is complex, large, heavy, requires time and effort to install, is costly, takes up space, has limited mobility, and requires storage space. Furthermore, the self-sufficient mobile power supply device described in Patent Document 2, which was developed as an all-in-one unit, has problems such as being large, heavy, difficult to carry to rough roads, narrow spaces, or sloping installation locations, and requiring delivery by at least a light truck or commercial van. Moreover, in pursuit of convenience, it cannot be transported by passenger car along with ancillary equipment such as batteries and magnetic arms, and even if a delivery company is used for business purposes, manual loading and unloading is difficult, resulting in inconvenience for use.

[0006] Therefore, the present invention aims to simplify, miniaturize, and lighten the structure of a mobile power supply, shorten installation time, reduce costs, and increase the freedom of movement, so that it does not take up much space and can be installed in narrow places. Furthermore, it aims to make the mobile power supply easy to carry to installation locations on rough roads, narrow spaces, or slopes, and in pursuit of convenience, it should be transportable by passenger car along with ancillary equipment, and even when using a delivery company for business purposes, it should be easy to load and unload by hand, making it easy to use. [Means for solving the problem]

[0007] In view of the above problems, the present invention provides a system comprising: at least a pair of solar panels; a pivot shaft that allows the pair of solar panels to rotate and change between a folded state and an unfolded state; a pair of frames that each fix the at least a pair of solar panels; at least a pair of wheels and a pair of first stoppers provided at one end of a frame side opposite to the side of the frame on which the pivot shaft is located; at least a pair of second stoppers provided at the other end of the frame side; and a system attached to the frame side on which the wheels, first stoppers and second stoppers are provided, with respect to that side Open A mobile power supply device having at least one pair of legs that can be closed, wherein the legs are closed and not in contact with the ground, the wheels and the second stopper are in contact with the ground, and the pair of solar panels are movable in the folded state; and an installation state in which the legs are opened, the lower ends of the legs are in contact with the ground, the first stopper is in contact with the ground, the wheels are not in contact with the ground, and the pair of solar panels are in an unfolded state.

[0008] It is preferable that the frame be provided with a handle, and that in the aforementioned storage configuration, the frame can be moved by lifting the handle and using the wheels.

[0009] It is preferable that the legs are closed and not installed, the wheels or the first stopper are in contact with the ground, the second stopper is not in contact with the ground, and the pair of solar panels are in an unfolded state.

[0010] It is preferable that the structure changes from the storage configuration to the unfolded configuration and then to the installation configuration, and also that the structure changes from the installation configuration to the unfolded configuration and then to the storage configuration. [Effects of the Invention]

[0011] The mobile power supply device of the present invention achieves miniaturization, weight reduction, shorter installation time, cost reduction, and increased freedom of movement through the simplification of the structure of the mobile power supply, taking up little space and being installable in narrow spaces. It can be easily moved for temporary use and quickly removed at night (for security reasons such as theft), generates and stores electricity while moving to different work locations depending on the amount of sunlight, and can charge other batteries such as solar cells as needed, enabling the generation and use of electricity while moving to different work locations. Furthermore, the mobile power supply device is easy to carry to installation locations on rough roads, in narrow spaces, or on slopes, and for convenience, it can be transported in a passenger car along with the battery and magnetic arm, making it easy to load and unload by hand even when using a delivery service for business purposes, and easy to use. [Brief explanation of the drawing]

[0012] [Figure 1] (a) and (b) are front and rear views of a housing configuration of a mobile power supply device according to an embodiment of the present invention. [Figure 2] This is a left side view of the same object. [Figure 3] (a) is a plan view, and (b) is a bottom view. [Figure 4] (a), (b), and (c) are the same perspective view. [Figure 5] (a) and (b) are left and right side views of the deployed configuration of a mobile power supply device according to an embodiment of the present invention. [Figure 6] (a), (b), and (c) are the plan view, front view, and bottom view, respectively. [Figure 7] (a) and (b) are perspective views from different angles of the installation configuration (elevation angle 45°) of the mobile power supply device according to the embodiment of the present invention. [Figure 8] (a) and (b) are the front view and right side view, respectively. [Figure 9] (a), (b), and (c) are the plan view, left side view, and bottom view, respectively. [Figure 10] (a) and (b) are perspective views of the installation configuration (elevation angle 30°) of the mobile power supply device according to the embodiment of the present invention, viewed from different angles. [Figure 11](a) and (b) are the left side view and the front view, respectively, of the same object. [Figure 12] (a), (b), and (c) are the plan view, the rear view, and the bottom view, respectively, of the same object. [Figure 13] It is an explanatory diagram showing one usage form of the mobile power supply device.

Mode for Carrying Out the Invention

[0013] The mobile power supply device 1 (hereinafter referred to as the power supply device 1) according to an embodiment of the present invention will be described with reference to FIGS. 1 to 13. The power supply device 1 includes a pair of solar cell panels 2 and 3, a rotation shaft 4 that enables the pair of solar cell panels 2 and 3 to rotate and change between a folded state and a deployed state, a pair of frames 5 and 6 that fix the pair of solar cell panels 2 and 3 respectively, a pair of wheels 7 and 8 provided at one ends of the lower sides 5b and 6b of the frames 5 and 6 on the side opposite to the upper sides 5a and 6a (see FIG. 5) of the frames 5 and 6 having the rotation shaft 4, a pair of stoppers 5g and 6g, a pair of stoppers 9 and 10 provided at the other ends of the lower sides 5b and 6b, and a pair of legs 11 and 12 attached to the lower sides 5b and 6b of the frames 5 and 6 where the wheels 7, 8 and the stoppers 5g, 6g, 9, 10 are provided and capable of opening and closing with respect to the lower sides 5b and 6b.

[0014] The power supply device 1 is in an ungrounded state with the legs 11 and 12 closed as shown in FIGS. 1 to 4, the wheels 7, 8 and the stoppers 9, 1 ten are in a grounded state, and the pair of solar cell panels 2, 3 are in a folded state and can be moved in a storage form. From the storage form, as shown in FIGS. 5 to 6, it can be changed to a deployed form in which the pair of solar cell panels are opened to be flush. After the deployed form, as shown in FIGS. 7 to 12, the legs 11, 12 open, the lower ends of the legs 11, 12 are grounded, the stoppers 5g, 6g are grounded, the wheels 7, 8 are in an ungrounded state, and the pair of solar cell panels 2, 3 are in a deployed state, and it can take an installation form.

[0015] Hereinafter, each element will be described in detail with reference to the drawings.

[0016] The pair of solar panels 2 and 3 are of a typical rectangular shape.

[0017] In this embodiment, the solar panels 2 and 3 are not conventional solar panels enclosed in an aluminum frame and having a glass surface, but rather thin, flexible solar panels. However, it is not limited to flexible solar panels, and conventional solar panels can also be used. Flexible solar panels are advantageous in situations where frequent transportation and movement are required, as they are thin, lightweight, and do not break or get damaged by collisions or impacts, but other types of solar panels can also be used.

[0018] As shown in Figures 1 to 5, the pivot axis 4 is a virtual axis (see Figure 2), and the pair of solar panels 2 and 3 are connected at multiple points by hinges 4a to 4c, allowing the solar panels 2 and 3 to rotate around the pivot axis 4. When the solar panels 2 and 3 are folded, a gap is created between the pair of solar panels 2 and 3, while when the solar panels 2 and 3 are unfolded, their ends can come into contact with each other.

[0019] The pair of frames 5 and 6 that secure the pair of solar panels 2 and 3 are rectangular in shape, and as shown in Figure 5, they have upper sides 5a and 6a, lower sides 5b and 6b, and right-angled front sides 5c and 6c and rear sides 5d and 6d, respectively, as well as intermediate sides 5e and 6e that are in the middle of the front sides 5c and 6c and the rear sides 5d and 6d and are parallel to them.

[0020] The names of the top edge, bottom edge, front edge, and back edge are based on the top, bottom, front, and back orientations of the storage configuration shown in Figures 1 and 2, etc.

[0021] As shown in Figures 2 and 3, the lower edges 5b and 6b extend by a specific length from one end of the frames 5 and 6. Metal fittings 7a and 8a are fixed to these extended portions, and the wheels 7 and 8 are attached via the fittings 7a and 8a facing outwards (so that they are located outside the frames 5 and 6 in the rear view in Figure 1(b), and so that they extend diagonally downward and rearward from the frames 5 and 6 in the side view in Figure 2).

[0022] As shown in Figures 1 to 3, stoppers 5g and 6g are provided at the ends of the extended portions of the lower sides 5b and 6b, near the wheels 7 and 8. Additionally, stoppers 9 and 10 are attached to the other ends of the lower sides 5b and 6b so as to extend downward in the front view shown in Figure 1(a).

[0023] As shown in Figures 2 and 3, a pair of legs 11 and 12 are further attached to the lower edges 5b and 6b, which can be opened and closed relative to the lower edges 5b and 6b and can move in the axial direction of the lower edges 5b and 6b.

[0024] As shown in Figures 7 and 8, each pair of legs 11 and 12 is pivotally attached to the first intermediate portion A of the lower sides 5b and 6b by pivot attachment portions 11a and 12a, and has opening and closing members 11b and 12b that open and close relative to the lower sides 5b and 6b, connecting members 11e and 12e that have shaft portions 11d and 12d (basically fixed rotating shafts, but described here as movable) that are movably fitted into the grooves 11c and 12c of the opening and closing members 11b and 12b, pivot attachment portions 11f and 12f provided at the opposite ends of the shaft portions 11d and 12d, pivotally attaching the connecting members 11e and 12e to the second intermediate portion B of the lower sides 5b and 6b, and stoppers 11g and 12g provided at the free ends of the opening and closing members 11b and 12b. In this embodiment, it is preferable that the shaft portions 11d, 12d, 11f, and 12f rotate only and do not slide in the axial direction. The opening and closing directions of the opening and closing members 11b and 12b, and the opening and closing directions of the connecting members 11e and 12e are set in a plane perpendicular to the solar panels 2 and 3. The pair of legs 11 and 12 take different positions relative to the solar panels 2 and 3 and the wheels 7 and 8 in the stored and deployed forms and in the installed form, respectively.

[0025] The position of the first intermediate section A, as shown in Figures 7 and 10, can be changed. This is because the pivot points 11a and 12a slide along grooves 6x (see Figure 7) provided on the lower edges 5b and 6b, respectively, and also serve as pivot points. After this sliding, the positions of the pivot points 11a and 12a can be fixed with screws or the like. This allows for flexible adaptation to the conditions of the installation site, making it easy to change the elevation angle of the solar panels 2 and 3, and to fold and store or unfold the legs 11 and 12.

[0026] As shown in Figures 1 to 6, handles 13 are provided on sides 5c and 6c of frames 5 and 6, respectively, for use when moving the power supply unit 1. The handles 13 consist of a pair of foldable claw-shaped members to accommodate the folding and unfolding of the solar cells 2 and 3. Fixing brackets 14a, 14b, and 14c, and a shaft portion 14d for securing the solar cells 2 and 3 in the folded and unfolded states are provided on frames 5 and 6 near the handles 13 (see Figure 1).

[0027] When the fixing bracket 14b, which is pivotally attached to the shaft portion 14d, is fitted into the fixing bracket 14a, it can be fixed in the folded state, and when the fixing bracket 14c, which is pivotally attached to the shaft portion 14d, is fitted into the fixing bracket 14a, it can be fixed in the unfolded state. The weight slip-preventing device 15 (see Figure 7) is pivotally attached near the stoppers 11g and 12g at the ends of the opening and closing members 11b and 12b, making it rotatable. In the stored state, the handle 13 can be lifted, the stoppers 9 and 10 are not touching the ground, and it can be moved using the wheels 7 and 8.

[0028] The usage configuration of power supply unit 1 will now be described. As shown in Figures 1 to 4, power supply unit 1 can be stored in a movable configuration with its legs 11 and 12 closed and not grounded, its wheels 7 and 8 and stoppers 9 and 10 grounded, and its pair of solar panels 2 and 3 folded.

[0029] As shown in Figures 5 and 6, the legs 11 and 12 are closed, the wheels 7 and 8 are in contact with the ground, the stoppers 9 and 10 are not in contact with the ground, and the pair of solar panels 2 and 3 are deployed in a deployed configuration.

[0030] As shown in Figures 7 to 12, it is possible to adopt an installation configuration in which the legs 11 and 12 are open, the lower ends of the legs 11 and 12 are in contact with the ground, the stoppers 5g and 6g are in contact with the ground, the wheels 7 and 8 are not in contact with the ground, and the pair of solar panels 2 and 3 are in an unfolded state.

[0031] For example, the installation configuration at an elevation angle of 45° corresponds to Figures 7 to 9, and the configuration at an elevation angle of 30° corresponds to Figures 10 to 12. In the deployed configuration, wheels 7 and 8 are in contact with the ground, but it is also possible to configure it so that stoppers 5g and 6g are in contact with the ground instead of wheels 7 and 8.

[0032] The structure is such that it can transition from the storage configuration to the deployed configuration and then to the installation configuration. It is also a reversible structure that can transition from the installation configuration to the deployed configuration and then to the storage configuration.

[0033] The effects and advantages of the embodiments of the present invention described above will now be explained. Power supply device 1 can be miniaturized and lightened through structural simplification, shorten installation time, reduce costs, and increase the freedom of movement, taking up little space and being installed in narrow places. It can be easily moved for temporary use and removed immediately at night (for security reasons such as theft), generates and stores electricity while moving to different work locations depending on the amount of sunlight, and can charge other storage batteries such as solar cells as needed, enabling the generation and use of electricity while moving to different work locations.

[0034] Furthermore, the power supply unit 1 is easy to carry to installation locations on rough roads, in narrow spaces, or on slopes. In pursuit of convenience, it can be transported by passenger car along with ancillary equipment such as a battery 201 (see Figure 13) that stores the electricity generated by the solar panels 2 and 3, and a magnetic arm 203 to which electrical users such as lighting fixtures 202 are attached. Even when using a delivery service for business purposes, it is easy to load and unload by hand, making it convenient to use. [Industrial applicability]

[0035] The power supply device according to the present invention is small and lightweight, making it easy to move, and therefore can be installed even in locations with adverse conditions, thus having great industrial applicability. [Explanation of Symbols]

[0036] 1 mobile power supply 2, 3 Solar panels 4 rotational axes 4a~4c Hinge 5, 6 frames 5a, 6a upper edge 5b, 6b bottom edge 5c, 6c front side 5d, 6d posterior side 5e, 6e intermediate side 5g, 6g stopper (first stopper) 7, 8 wheels 7a, 8a Metal fittings 9, 10 Stopper (Second Stopper) 11, 12 legs 11a, 12a Shaft attachment part 11b, 12b Opening / closing material 11c, 12c groove 11d, 12d shaft part 11e, 12e Connecting material 11f, 12f shaft attachment part 11g, 12g Stopper 13 Handle 14a, 14b, 14c Fixing brackets 14d Shaft 201 Storage Battery 202 Lighting fixtures 203 Magnetic Arm

Claims

1. At least one pair of solar panels, A pivot axis that allows the pair of solar panels to rotate and change between a folded state and an unfolded state, A pair of frames for securing each of the at least pair of solar panels, At least a pair of wheels and a pair of first stoppers are provided at one end of the frame side opposite to the side of the frame on which the pivot axis is located. At least a pair of second stoppers provided at the other end of the side of the frame, The wheels, the first stopper and the second stopper are attached to the side of the frame, and at least one pair of legs are attached to the side and are openable and closable relative to the side, It has, The aforementioned legs are closed and not touching the ground, the wheels and the second stopper are in contact with the ground, and the pair of solar panels are in a storage configuration that allows them to move in the folded state. A mobile power supply device capable of being installed in a configuration in which the legs are opened and the lower ends of the legs touch the ground, the first stopper touches the ground, the wheels are not touching the ground, and the pair of solar panels are in an unfolded state.

2. A mobile power supply device according to claim 1, wherein the frame is provided with a handle, and in the storage configuration, the handle can be lifted and the device can be moved using wheels.

3. A mobile power supply device according to claim 1 or 2, which is capable of taking an unfolded form in which the legs are closed and not touching the ground, the wheels or the first stopper are touching the ground, the second stopper is not touching the ground, and the pair of solar panels are unfolded.

4. The mobile power supply device according to claim 3, having a structure that changes from the storage configuration to the deployed configuration and then to the installation configuration, and having a structure that changes from the installation configuration to the deployed configuration and then to the storage configuration.

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