Portable solar power generation system

Abstract

To provide a portable solar power generation system that offers excellent transport efficiency and is easy to install and remove. [Solution] The portable photovoltaic power generation device 1 comprises a device housing 10, a photovoltaic power generation panel 30, and a pair of legs 51, 51. The photovoltaic power generation panel 30 has two panel bodies 31, and the base end 32 of the panel body 31 is rotatably connected via a pivot R1 to a support beam 24 located at the upper end of the frame 20 that constitutes the framework of the device housing 10. The pair of legs 51, 51 are rotatably connected to the frame 20 via pivot ends 52.

Description

Technical Field

[0001] The present invention relates to a transportable solar power generation device.

Background Art

[0002] In times of disaster, various portable solar power generation devices have been developed so that victims taking refuge in evacuation shelters and the like can quickly use electricity.

[0003] The portable solar power generation device according to the invention of Patent Document 1 can dispose a plurality of permanent solar cell module panels on a housing in an inclined manner when in use for power generation. Further, the housing includes a storage chamber for storing a plurality of additional solar cell module panels in a stacked manner during transportation, a storage battery chamber provided with a storage battery for charging the power generated by the permanent solar cell module panels, and a control chamber provided with a connection board, a control board, a distribution board, instruments, etc. for taking out as an external power source from the permanent solar cell module panels and / or the storage battery.

[0004] The mobile solar power generation device according to the invention of Patent Document 2 has a transportable main body, an upper surface solar panel placed on the upper surface of the main body, and a side surface solar panel foldably connected to the side surface of the main body. After the installation of the main body, the side surface solar panel can be expanded to generate power by the upper surface solar panel and the side surface solar panel.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] The portable solar power generation system proposed in Patent Document 1 is thought to be based on the premise that the batteries in the battery compartment are placed directly on the floor in contact with each other. Because they are laid out across the entire surface, a large installation area is required, and transportation of multiple portable solar power generation systems cannot be said to be efficient. In addition, when installing the system at the installation site, components such as solar power generation panels must be attached separately.

[0007] The portable solar power generation device proposed in Patent Document 2 cannot improve the efficiency of installation work because the support members 8 and 9 must be assembled separately when extending the side solar panels. Furthermore, if batteries are installed, the batteries must be attached and detached each time the device is moved. In addition, no measures have been taken to create a good storage environment for the batteries.

[0008] This invention addresses these problems and provides a portable solar power generation system that is highly efficient to transport and easy to install and remove.

[0009] The invention for solving the above problems is a portable photovoltaic power generation device comprising: a photovoltaic power generation panel; a device housing section capable of housing an energy storage device; and a pair of legs rotatably connected via rotating ends to a frame section constituting the framework of the device housing section. The device housing section includes a first panel defining a first wall surface, a second panel defining a second wall surface which intersects the first wall surface, and a ceiling panel. The photovoltaic power generation panel includes a panel body whose base end is rotatably connected to the frame section, and a posture maintenance section for maintaining the posture of the panel body. The pair of legs can assume an open-legged position in which their respective tip ends face each other with a rotating end in between and contact the installation surface, and can also assume a closed-legged position in which the distance between the tip ends is shorter than in the open-legged position.

[0010] With this configuration, the portable photovoltaic power generation system is equipped with a device housing that can accommodate a power storage device. By housing the necessary power generation equipment, such as a battery and an inverter, in the device housing beforehand, power supply can begin immediately after installation. Furthermore, the photovoltaic power generation panel has a panel body whose base end is rotatably connected to the frame and a posture maintenance part for maintaining the posture of the panel body. This allows the panel to take an adapted posture to the situation, such as reducing the planar area occupied by the photovoltaic power generation panel during transport and increasing the planar area occupied by the photovoltaic power generation panel during power generation. In addition, the legs can take an open-legged posture in which the tips face each other with the rotatable ends in between and touch the installation surface, and can also take a closed-legged posture in which the distance between the tips is shorter than in the open-legged posture. This allows for stabilization of the system during installation and improves the efficiency of transport.

[0011] Preferably, the posture maintenance unit includes a first arm rotatably connected to the middle part of the frame, a second arm rotatably connected to the middle part of the panel body, and a restraint pin, wherein the first arm and the second arm are connected in such a way that they can slide in the axial direction, and the restraint pin is inserted into the overlapping location of a first hole provided in the first arm and a second hole provided in the second arm.

[0012] In this configuration, the posture maintenance unit has a first arm rotatably connected to the middle part of the frame and a second arm rotatably connected to the middle part of the panel body. The first and second arms are connected in a way that allows them to slide in the axial direction, so that the panel body can rotate smoothly. Furthermore, by inserting a restraining pin into the overlapping portion of the first hole in the first arm and the second hole in the second arm, the axial sliding is restrained, so that the panel body can be stopped at a predetermined position.

[0013] Preferably, the photovoltaic power generation panel is characterized by being able to assume a closed position in which the distance between the front edge of the panel body and the first wall surface is the same as or shorter than the distance between the base edge of the panel body and the first wall surface.

[0014] This configuration allows the solar panels to assume a closed position during transport, thereby reducing the planar footprint of the solar power generation system. This improves the transport efficiency of the solar power generation system.

[0015] Preferably, the photovoltaic power generation panel is characterized by being able to adopt an open orientation in which the distance between the front edge of the panel body and the first wall surface is longer than the distance between the base edge of the panel body and the first wall surface.

[0016] This configuration allows the solar panels to be installed in an open position, thereby increasing their light-receiving area. This, in turn, improves the power generation efficiency of the solar power system.

[0017] Preferably, the photovoltaic panel has a restraining part that suppresses downward rotation of the panel body, and the restraining part is rotatably connected to both the frame and the panel body.

[0018] With this configuration, the solar power generation panel has a restraining mechanism that suppresses downward rotation of the panel body, so that the forces are balanced at a predetermined position. As a result, even heavy panels can be rotated manually.

[0019] Preferably, the ceiling panel is characterized by having a downward-sloping surface defined that slopes downward from the top toward the first panel.

[0020] In this configuration, the ceiling panel has a downward-sloping surface defined that slopes downward from the top toward the first panel, so rainwater falls through this downward-sloping surface. This helps maintain the energy storage and supply environment within the equipment housing. In addition, wind blowing toward the first wall changes direction at the downward-sloping surface and rises through the gaps between the solar panels. This suppresses the lifting of the solar power generation equipment due to wind and reduces vibration of the solar panels.

[0021] Preferably, a weight storage part for storing a weight is provided below the device storage part.

[0022] According to this configuration, since the weight storage part for storing a weight is provided below the device storage part, installation stability can be ensured.

Brief Description of the Drawings

[0023] [Figure 1] It is a perspective view of Embodiment 1. However, the solar power generation panel is in an open position and the legs are in an open-legged position. [Figure 2] Same, it is a perspective view. However, the solar power generation panel is in a closed position and the legs are in a closed-legged position. (The first panel, the second panel, etc. are omitted.) [Figure 3] Same, it is a side view. However, the solar power generation panel is in an open position and the legs are in an open-legged position. [Figure 4] Same, it is a side view. However, the solar power generation panel is in a closed position and the legs are in a closed-legged position. (The first panel, the second panel, etc. are omitted.) [Figure 5] Same, it is a perspective view of the framework. [Figure 6] Same, it is a perspective view of the panel body. [Figure 7] Same, it is a partial perspective view of the legs. [Figure 8] Same, it is a plan sectional view of the holding fitting. [Figure 9] (a) is a partial side view for explaining the posture maintaining part, and (b) is a partial front view thereof. [Figure 10] (a) is a perspective view of Embodiment 2, and (b) is a side view. However, the solar power generation panel is in an open position and the legs are in an open-legged position. [Figure 11] (a) is the same perspective view, and (b) is the same side view. However, the solar power generation panel is in a closed position and the legs are in a closed-legged position. [Figure 12] Same, it is a perspective view of the state where the first panel is open. However, the solar power generation panel is in an open position and the legs are in an open-legged position. [Figure 13] This is a partial perspective view of the vicinity of the rotating end. [Figure 14] This is a plan view. [Figure 15] This is a side view of the same object. [Figure 16] This is a side cross-section of the same product. [Modes for carrying out the invention]

[0024] Hereinafter, with reference to Figures 1 to 9, Embodiment 1 of the portable photovoltaic power generation device 1 of the present invention (hereinafter referred to as "power generation device 1") will be described in detail.

[0025] As shown in Figures 1 to 4, the power generation device 1 comprises a device housing 10, a photovoltaic power generation panel 30 (hereinafter referred to as the power generation panel 30), and a pair of legs 51, 51. The power generation panel 30 has two panel bodies 31, and the base end 32 of the panel body 31 is rotatably connected via a pivot part R1 to a support beam 24 located at the upper end of the frame part 20 that constitutes the framework of the device housing 10.

[0026] The device housing section 10 has a housing space 16a defined by two opposing first panels 11, two opposing second panels 12, a bottom plate 13, and a ceiling panel 14. The energy storage device B is housed in the housing space 16a. The energy storage device B is a device for storing the electricity generated by the panel body 31. In addition, an inverter for AC power transmission may also be housed in the housing space 16a.

[0027] The device housing section 10 is roughly rectangular in plan view, and consists of two first panels 11 and two second panels 12, each connected to a support column 21 in an opposing position. The first panels 11 are flat plates, and their outer surfaces define a first wall surface 11a. The second panels 12 are flat plates, and their outer surfaces define a second wall surface 12a. The ceiling panel 14 is a convex-shaped flat plate with a downward-sloping surface 14a that descends from the top 14T toward the first panels 11.

[0028] Below the device housing section 10, a weight housing section 15 is provided for housing the weight WT. The weight housing section 15 is connected to the device housing section 10 via a bottom plate section 13.

[0029] The weight is preferably a heavy and easy-to-handle component. In this embodiment, multiple concrete blocks are used as an example, but the invention is not limited to these. Iron blocks may also be used.

[0030] In the closed position, each of the two panel bodies 31 has its back surface 31b facing the first wall surface 11a. The panel body 31 can also take an open position (see Figures 1 and 3) in which the first separation distance L1, which is the separation distance between the panel front end 31c and the first wall surface 11a, is longer than the second separation distance L2, which is the separation distance between the panel base end 31a and the first wall surface 11a. It can also take a closed position in which the first separation distance L1 is the same as or shorter than the second separation distance L2 (see Figures 2 and 4). In this embodiment, two panel bodies are arranged facing each other on one side, but the invention is not limited to this, and two or more panel bodies may be arranged facing each other. Furthermore, the panel bodies may be arranged on only one side.

[0031] The power generation panel 30 further has a posture maintenance unit 40, and the posture of the panel body 31 is maintained by the posture maintenance unit 40. The posture maintenance unit 40 has a first arm 41, a second arm 42, and a restraint pin P. The first arm 41 is rotatably connected to the support column 21 via a first hinge 61 provided in the middle of the support column 21. The second arm 42 is rotatably connected to a second shaft 82 provided in the middle of the back surface 31b of the panel body 31 via a second hinge 62. The first arm is a rectangular tube, and the second arm is a rectangular tube that can slide when inserted into the first arm. Note that the first arm and the second arm are not limited to rectangular tubes, and may be, for example, cylindrical tubes.

[0032] The first arm 41 and the second arm 42 are each provided with a first hole 41a and a second hole 42a, respectively. By overlapping the first hole 41a and the second hole 42a and inserting a restraining pin P into the first hole 41a and the second hole 42a, the structure allows them to maintain a predetermined position.

[0033] The downward rotation of the panel body 31 is suppressed by a gas spring GS (restraining part). One end of the gas spring GS is rotatably connected to the upper end of the support column 21 (below the rotating part R1), and the other end is rotatably connected near the second shaft 82 of the shaft mounting member 35. Due to the effect of the gas spring GS, the solar power generation panel 30 can be easily opened and closed manually. Furthermore, by inserting restraining pins P into holes 41a and 42a provided in the first arm 41 and second arm 42 while the posture of the panel body 31 is maintained, the panel body 31 can maintain its posture without rotating even if external forces such as wind are applied to it.

[0034] A pair of legs 51, 51 are rotatably connected to the frame 20 via a rotating end 52. The legs 51 can assume an open-leg position (see Figures 1 and 3) in which their tip ends 53 face each other on either side of the rotating end 52 and make contact with the installation surface 100, and can also assume a closed-leg position (see Figures 2 and 4) in which the distance between the respective tip ends 53 is shorter than the width of the second panel 12, specifically, the pair of legs 51, 51 are upright and nearly parallel.

[0035] As shown in Figure 5, the frame section 20 has four support columns 21 rising from the base 22. The support columns 21 are positioned at the four corners of the device housing section 10, and the first panel 11 and the second panel 12 are connected and fixed to them. (See Figures 1 and 3) The base 22 is a frame structure on which the weight WT is placed and constitutes part of the weight housing section 15. A support beam 24 is spanned across the upper ends of the support columns 21. The support beam 24 is a member that extends in the longitudinal direction DL.

[0036] An attachment member 27 for attaching the base plate 13 is connected to the lower end of the support column 21. A connecting member 23 extending in the short direction DS is connected to the upper end, and a support beam 24 extending in the long direction DL is spanned across it. In addition, a reinforcing member 25 is attached to reinforce the support column 21. Furthermore, an attachment member 26 for attaching the ceiling panel 14 is fitted between the connecting member 23 and the reinforcing member 25. In this embodiment, three reinforcing members 25 extending in the short direction DS are attached opposite each other, but this is not the only configuration. For example, the number may be one or two, or four or more. They may also be attached to surround all four sides.

[0037] As shown in Figure 6, the panel body 31 has a shaft mounting member 35 attached to its back surface 31b, and the first shaft 81 and the second shaft 82 are connected and fixed to the panel body 31 via the shaft mounting member 35. The panel body 31 is also reinforced by the shaft mounting member 35.

[0038] The first shaft 81 is rotatably connected to the support beam 24 via a pivot portion R1. The second shaft 82 is rotatably connected to the second arm 42 via a second hinge 62, and is also rotatably connected to the gas spring GS.

[0039] Figure 7 is a partial perspective view of the pivot end 52 when the leg portion 51 is in an open position. The leg portion 51 is rotatably attached to the base 22 by a leg pivot hinge 57. The leg portion 51 can maintain an open position by being fixed with a leg fixing bracket 54. When the leg portion 51 is in an open position, the pair of leg portions 51, 51 tip portions 53 are in a state where they can make contact with the installation surface 100, and can support the device housing 10, etc.

[0040] When the leg portion 51 assumes a closed position, that position is maintained by the insertion fitting 55 and the contact plate 56. Specifically, as shown in Figure 8, with the leg portion 51 in contact with the contact plate 56, the insertion fitting 55 is inserted into the hole 51a provided in the leg portion 51. This prevents the leg portion 51 from rotating.

[0041] As shown in Figures 9(a) and (b), when the power generation panel 30 is in the closed position, the second arm 42 penetrates the first arm 41 and extends from the upper end of the support column 21 toward the base 22.

[0042] The procedure for transporting and installing the power generation device 1 in this embodiment 1 will be described below.

[0043] When transporting the power generation device 1, it is loaded onto the transport vehicle in the state shown in Figure 2. That is, the power generation panel 30 is kept in a closed position, and the legs 51 are kept in a closed position. In order to maintain the closed position, the insertion fittings 55 are inserted into the holes 51a of the legs 51 while they are in a closed position. Also, the first arm 41 and the second arm 42 are kept in a closed position, and restraining pins P are inserted into the overlapping first holes 41a and second holes 42a, respectively. As a means of maintaining the closed position, the power generation panel 30 may be directly locked using locking fittings (not shown) provided on the support column 21. Alternatively, the two means described above may be used in combination.

[0044] It is preferable that the equipment housing section 10 contains the equipment necessary for power generation, such as the energy storage device B and inverter, and is transported with the equipment already connected to the power generation panel 30. This allows the power generation system 1 to be used immediately after installation following the completion of the transport. If the equipment necessary for power generation and the power generation panel 30 are to be transported without being connected, it is preferable to provide a separate connector that allows for easy connection.

[0045] Furthermore, it is preferable to transport the weight WT separately rather than storing it in the weight storage section 15. This facilitates loading and unloading the power generation device 1 onto the transport vehicle. In addition, to further stabilize the transport, the power generation device 1 may be transported with the weight WT stored in the weight storage section 15, although this is not limited to this configuration.

[0046] After the transfer is complete, the power generator 1 is unloaded at the pre-planned installation location. At the same time, the insertion fitting 55 that was inserted into the hole 51a is removed, and the legs 51 are rotated to the open leg position. The open leg position of the legs 51 is maintained using the leg fixing fitting 54. In this state, the tip 53 of the legs 51 contacts the installation surface and supports the power generator 1. This ensures a certain degree of stability against tipping of the power generator 1. Furthermore, by housing the weight WT in the weight housing section 15, even greater stability against tipping of the power generator 1 can be ensured.

[0047] The restraining pin P is removed, allowing the first arm 41 and the second arm 42 to slide axially. This releases the closed position of the solar panel 30. The solar panel 30 is then manually rotated to the predetermined open position. Since the two sets of solar panels 30 can be rotated independently, they do not need to be in the same open position. The open position of each solar panel 30 can be appropriately determined considering the site conditions, and the restraining pin P can be used to hold that open position.

[0048] The power generation panel 30 normally requires a great deal of force to rotate, but thanks to the action of the gas spring GS, it can be rotated manually without requiring any particularly great force.

[0049] When the two panel bodies 31 are open, a certain gap is provided between them. When wind blows toward the first panel 11, a portion of it passes over the ceiling panel 14, rises along the downward sloping surface 14a, and passes through the gap provided between the two panel bodies 31. This reduces the lifting of the power generation device 1 caused by wind.

[0050] Transferring the equipment from the installation location to the storage location can be done by reversing the procedure described above.

[0051] Embodiment 2 of the present invention will be described in detail with reference to Figures 10-16. Since Embodiment 1 and Embodiment 2 contain overlapping content, the differences will be explained primarily. Components corresponding to Embodiment 1 are denoted by reference numerals in the 200s.

[0052] As shown in Figures 10-12, the power generation panel 230 of the power generation device 201 has a total of six panel bodies 231, three on each side. In addition, there are three pairs of legs 251, three on each side. Specifically, there are pairs of legs 251 at both ends and in the middle.

[0053] The legs 251 are rotatably attached to the underside of the base 222 via the pivot end 252. The legs 251 can maintain an open-leg position by being fixed with the leg fixing device 254. When the legs 251 are in an open-leg position, the tips 253 of the pair of legs 251 can make contact with the mounting surface 100 and support the device housing 210, etc. When the legs 251 are displaced from an open-leg position to a closed-leg position, or from a closed-leg position to an open-leg position, they rotate along a plane parallel to the underside of the base 222.

[0054] The posture maintenance unit 240 has a first arm 241 and a second arm 242. The first arm 241 is rotatably connected to the support column 221 via a first hinge 261 provided in the middle of the support column 221. The second arm 242 is rotatably connected via a second hinge 262 to a second shaft 282 provided in the middle of the back surface 231b of the panel body 231. The first arm 241 is a rectangular tube, and the second arm 242 is a rectangular tube that can slide when the first arm 241 is externally fitted onto it.

[0055] When the power generation panel 230 is in the closed position, the second arm 242 penetrates the first arm 241 and extends from the base 222 toward the upper end of the support column 221. As described above, the first arm 241 and the second arm 242 exhibit different behavior from Embodiment 1.

[0056] The first arm 241 and the second arm 242 are provided with a first hole 241a and a second hole 242a, respectively. By overlapping the first hole 241a and the second hole 242a and inserting a restraining pin P into the first hole 241a and the second hole 242a, the structure can maintain a predetermined position.

[0057] As shown in Figure 12, the first panel 211 is composed of multiple single-opening door structures, allowing for easy installation and removal of the energy storage device B and other devices housed in the device housing section 210.

[0058] As shown in Figures 13-16, the leg portion 251 is rotatably attached to the base 222 via the pivot end portion 252. Unlike Embodiment 1, the leg portion 251 rotates in a direction along a plane parallel to the lower surface of the base 222. The leg portion 251 can be fixed in a closed leg position and an open leg position by a leg fixing device 254 provided on the pivot end portion 252.

[0059] The leg fixing device 254 includes a rotation-restraining belt 255 and a rotation-restraining bolt 256. By loosening the rotation-restraining belt 255 and removing the rotation-restraining bolt 256, the leg portion 251 becomes rotatable. By adjusting the tightness of the rotation-restraining belt 255, the leg portion 251 can be rotated with an appropriate load. The rotation of the leg portion 251 can be prevented by installing the rotation-restraining bolt 256.

[0060] This embodiment is illustrative and can, of course, be modified without departing from the technical spirit of the present invention. [Industrial applicability]

[0061] The power generation device according to the present invention is capable of supplying power immediately after transport. Because it can be used quickly in emergency disaster areas and significantly contribute to disaster recovery, it has great industrial potential. [Explanation of Symbols]

[0062] 1. 201: Power generation equipment 10, 210: Device housing section 11, 211: Panel 1 11a: First wall 12: Panel 2 12a: Second wall 13: Bottom plate part 14: Ceiling panel 15: Weight storage section 20: Frame section 30, 230: Power generation panels 31, 231: Panel body 31a: Panel base 31b, 231b: Back of the panel 31c: Panel tip 32: Proximal end 40: Posture maintenance part 41, 241: First Arm 41a, 241a: 1st hole 42, 242: Second Arm 42a, 242a: 2nd hole 51, 251: Legs 52, 252: Rotating end 53, 253: Tip B:Power storage device GS: Gas spring (restraining part) WT: Weight

Claims

1. Solar power generation panels and A device housing section capable of housing an energy storage device, The frame portion constituting the framework of the device housing section comprises a pair of legs that are rotatably connected via rotating ends, The device housing section includes a first panel defining a first wall surface, a second panel defining a second wall surface which intersects the first wall surface, and a ceiling panel. The aforementioned solar power generation panel comprises a panel body whose base end is rotatably connected to the frame portion, and a posture maintenance portion for maintaining the posture of the panel body. A portable photovoltaic power generation device characterized in that a pair of legs can assume an open leg position in which their respective tip portions face each other with the rotating end portion in between and make contact with the installation surface, and can also assume a closed leg position in which the distance between the tip portions is shorter than that when the legs are open.

2. The posture maintenance unit includes a first arm rotatably connected to the middle part of the frame, a second arm rotatably connected to the middle part of the panel body, and a restraint pin. The transportable photovoltaic power generation device according to claim 1, characterized in that the first arm and the second arm are connected in such a manner that they can slide in the axial direction, and the restraining pin is inserted into the location where the first hole provided in the first arm and the second hole provided in the second arm overlap.

3. The portable photovoltaic power generation device according to claim 1, characterized in that the photovoltaic power generation panel can assume a closed position such that the distance between the front edge of the panel body and the first wall surface is the same as or shorter than the distance between the base end of the panel body and the first wall surface.

4. The portable photovoltaic power generation device according to claim 1, characterized in that the photovoltaic power generation panel can assume an open position in which the distance between the front edge of the panel body and the first wall surface is longer than the distance between the base edge of the panel body and the first wall surface.

5. The portable solar power generation apparatus according to claim 1, wherein the solar power generation panel has a restraining part that suppresses downward rotation of the panel body, and the restraining part is rotatably connected to both the frame part and the panel body.

6. The portable photovoltaic power generation device according to claim 1, characterized in that the ceiling panel has a downward sloping surface defined that slopes downward from the top toward the direction of the first panel.

7. The portable photovoltaic power generation device according to claim 1, characterized in that a weight housing section for housing weights is provided below the device housing section.

Images