JP7590767B2 - Solar panel maintenance equipment - Google Patents

Description

The present invention relates to a solar panel maintenance device that maintains solar panels to prevent a decrease in the power generation capacity of the solar panels and to efficiently generate power, etc.

To prevent a decrease in the power generation capacity of each solar panel of a solar panel unit, a cleaning device that cleans the solar panel surface that receives sunlight and a solar panel coating device that coats the solar panel surface are known. The solar panel cleaning device of Patent Document 1 has a running body such as a wheel that contacts the panel surface of the solar panel and a cleaning unit such as a rotating brush, and cleans the panel surface of the solar panel with the cleaning unit while the running body runs over it. Since the cleaning unit moves up and down to clean large solar panels, two or more guide members along which the cleaning unit moves are connected to ensure the vertical movement distance. To fix the connection part between one guide member and another guide member, a connecting fixing member has a structure that clamps the connection part of the guide members.

International Publication No. 2017/145194

However, the structure for connecting one guide member to another is complex, and connecting and fixing members are required, making it difficult to transport the large and heavy cleaning device, and also requiring a great deal of effort to install the solar panel cleaning device on the solar panels.

Therefore, the present invention provides a solar panel maintenance device that can be easily transported and installed, and reduces the labor burden on workers.

The solar panel maintenance device of this embodiment is a solar panel maintenance device that maintains a solar panel unit in which multiple solar panels are arranged. The maintenance device includes a maintenance unit that performs maintenance work on the solar panel unit, a frame unit that has a first frame extending in a first direction and a second frame extending in a second direction intersecting the first direction, and on which the maintenance unit is placed, a hinge portion that is attached to the frame unit and bends relative to the first frame, and a fixing portion that fixes the hinge portion to 0 degrees relative to the frame unit.

The hinge portion of the frame unit of the maintenance device includes a first hinge portion and a second hinge portion arranged side by side in the first direction, and the first hinge portion and the second hinge portion each fold.
It is also preferable that the first frame of the frame unit has a guide rail extending in the first direction, and the fixing portion of the frame unit slides along the guide rail of the first frame to fix the first hinge portion and the second hinge portion.

The maintenance device may further include a first positioning member attached to the frame unit and configured to position the frame unit and another frame unit in a first direction, and a second positioning member attached to the frame unit and configured to position the frame unit and another frame unit in a second direction.
The first positioning member is a C-shaped hook that is hooked onto a second frame of another frame unit, and the first frame of the other frame unit has a guide rail extending in a first direction, and the second positioning member slides along the guide rail of the first frame of the frame unit and the guide rail of the first frame of the other frame unit to position the frame unit and the other frame unit.

The maintenance device preferably further comprises a drive unit attached to the frame unit for driving the frame unit in the second direction.
The maintenance unit preferably has a drive for moving in the first direction.
The maintenance unit may also be guided by a guide frame provided parallel to the first frame of the frame unit.
The maintenance unit preferably includes a nozzle for spraying liquid onto the panel surface of the solar panel unit and a cleaning brush for cleaning the panel surface of the solar panel unit.
Moreover, it is preferable that the maintenance unit includes a nozzle that sprays the coating agent onto the panel surface of the solar panel unit, and an application section that applies the coating agent.

The solar panel maintenance device of the present invention has a hinge section that allows the frame unit to be folded, making it easy to transport and install, and reducing the labor burden on workers.

1 is a plan view of the maintenance device 100 mounted on the solar panel unit SPU. FIG. 2 is an overall configuration diagram of a frame unit 20. FIG. 1A and 1B are a plan view and a front view of the periphery of a connecting portion CN of a frame unit 20. FIG. 13 is a front view showing a state in which the connecting portion CN is broken at the hinge portion 21. FIG. FIG. 11 is an overall view showing a state in which a frame unit is broken relative to another frame unit. 13 is another embodiment of the hinge portion. FIG. 2 is an overall configuration diagram of a drive unit 50. FIG. 2 is an overall configuration diagram of a maintenance unit 60.

The following describes in detail an embodiment of the present invention with reference to the drawings. In this specification and the drawings, components having substantially the same functional configuration are designated by the same reference numerals to avoid repetitive explanation. In addition, the components are not drawn to their actual dimensions in the drawings to emphasize them.

In this embodiment, a cleaning process for cleaning a solar panel is described as a maintenance device for a solar panel. However, maintenance is a concept that includes not only cleaning of the solar panel, but also a coating process for applying a coating agent to the solar panel to form a coating layer in order to increase the durability and dust resistance of the solar panel.

<Outline of the solar panel unit>
FIG. 1 is a plan view of a maintenance device 100 mounted on a solar panel unit SPU. As shown in FIG. 1, the solar panel maintenance device 100 of this embodiment cleans the surface of the solar panel unit SPU. This solar panel unit SPU is a solar panel in which a plurality of solar panels SP are arranged in a front-rear and left-right arrangement. The solar panel unit SPU is arranged, for example, with 1.0 m x 1.5 m solar panels SP, four in the Y-axis direction and ten in the X-axis direction (only a portion of which is shown). Each solar panel SP has a panel body having a panel surface (+Z-axis side) that captures sunlight to generate solar power and a power generation device (not shown) arranged on the back side (-Z-axis side), and an edge portion PP provided around the panel body. Of these, the panel surface 3 is made of glass, and the edge portion PP is made of a metal such as aluminum. The solar panel unit SPU is generally installed with the panel surface inclined, i.e., with the upper side surface SP1 in Fig. 1 higher (+Z-axis side) than the lower side surface SP2. In Fig. 1, the X-axis direction is a substantially horizontal lateral direction, and the Y-axis direction is a direction that is not substantially parallel to the inclined panel surface.

<Outline of the solar panel maintenance device 100>
A solar panel maintenance device 100 of this embodiment will be described. This solar panel maintenance device 100 includes a head unit 10, a frame unit 20, a bottom unit 40, a drive unit 50, and a maintenance unit 60. The maintenance device 100 shown in FIG. 1 has four frame units 20 (20a, 20b, 20c, 20d) connected in accordance with the vertical direction (Y-axis direction) of the solar panel unit SPU. When the solar panel unit SPU is small, the maintenance device 100 only needs to include one head unit 10, one frame unit 20, and one maintenance unit 60. The bottom unit 40 does not necessarily need to be provided because the solar panel unit SPU is inclined.

The head unit 10 has wheels 11 facing the upper side surface SP1, and these wheels 11 support the maintenance device 100 on the upper side surface SP1 of the inclined panel surface, while allowing it to move laterally (in the X-axis direction).

The frame unit 20 carries the maintenance unit 60. The maintenance unit 60 can move in the Y-axis direction of the frame unit 20. The frame unit 20 has two horizontal frames 27, two vertical frames 28, and a guide frame 29. The frame unit 20 also has a hinge portion 21 that folds the head unit 10 relative to the adjacent frame unit 20. The head unit 10 can be folded 180 degrees relative to the frame unit 20 at the hinge portion 21. Also, one of the adjacent frame units 20 (e.g., 20b) can be folded 180 degrees relative to the other frame unit 20 (e.g., 20c) at the hinge portion 21.

The bottom unit 40 is a unit that stops the maintenance unit 60 moving on the frame unit 20 so that it does not move beyond the frame unit 20 in the -Y axis direction. The bottom unit 40 of this embodiment does not have the wheels 11 that the head unit 10 has, but the bottom unit 40 may have wheels 11 and clamp the upper side surface SP1 and the lower side surface SP2 of the solar panel unit SPU from both sides with the wheels 11. The bottom unit 40 shown in FIG. 1 is small and is not intended to be folded, so a hinge portion 21 is not provided. However, the bottom unit 40 may have a hinge portion 21 and be able to be folded 180 degrees relative to the frame unit 20.

The drive unit 50 is detachably attached to the rear side (-Z axis direction) of the frame unit 20 on the page. In this embodiment, it is attached to the second frame unit 20 from the top, but it may be attached to any frame unit 20, and is selected appropriately depending on the length of the solar panel unit SPU in the vertical direction (Y axis direction) and the tilt angle of the solar panel unit SPU.

The maintenance unit 60 is detachably attached to the front side (+Z-axis direction) of the frame unit 20 on the page. The wheels of the maintenance unit 60 are movable in the Y-axis direction while resting on the two vertical frames 28. The maintenance unit 60 is guided by a guide frame 29 so that the wheels of the maintenance unit 60 do not come off the two vertical frames 28. The maintenance unit 60 can clean the surface of the solar panel unit SPU and perform a coating process on the solar panel unit SPU.

<Outline of Frame Unit 20>
FIG. 2 is a plan view, a front view, and a right side view of the frame unit 20. The frame unit 20 is roughly divided into an extension portion EX and a connection portion CN. The frame unit 20 has two horizontal frames 27 attached to two vertical frames 28 at intermediate positions of the vertical frames 28, and both ends (±Y-axis direction) of the vertical frames 28 protrude from the horizontal frames 27. The horizontal frames 27 and the vertical frames 28 are made of metal, for example, and have a circular or octagonal cross section. In this embodiment, a guide rail is provided in the direction in which the frame extends so that it can be connected to other members with bolts or the like. The horizontal frames 27 and the vertical frames 28 are fixed by four triangular reinforcing plates attached to the guide rail, and have a rectangular frame structure. A caster 80 that rotates in the X-axis direction is disposed at one end (-Y-axis side) of the vertical frame 28. It is preferable that the caster 80 passes through the edge portion PP of the solar panel SP, so that the position of the caster 80 in the Y-axis direction can be adjusted according to the position of the edge portion PP of the solar panel SP. That is, the caster 80 may be disposed on the vertical frame 28 between two horizontal frames 27, rather than on the end of the vertical frame 28. The structure for adjusting the position of the caster 80 in the Y-axis direction will be described with reference to Fig. 3. The height of the caster 80 is set to Z1.

A guide frame 29 is provided so as to span the two horizontal frames 27 and to be parallel to the vertical frame 28. This guide frame 29 guides the maintenance unit 60 when it moves in the Y-axis direction on the vertical frame 28. As described below, the four wheels of the maintenance unit 60 move while in contact with the top of the vertical frame 28, so the maintenance unit 60 is guided accurately in the Y-axis direction by the guide frame 29 so that the wheels do not come off the vertical frame 28. Note that it is not necessary to provide a guide frame 29. For example, if the maintenance unit 60 is equipped with flanged wheels like train wheels, the maintenance unit 60 can move in the Y-axis direction along the vertical frame 28 even without the guide frame 29.

The other end (+Y-axis side) of the vertical frame 28 is provided with a connecting part CN. The connecting part CN has a hinge part 21, two connecting frames 26 on which the hinge part 21 is placed, a support frame 25 that supports the two connecting frames 26, a first positioning member 24 for positioning in the Y-axis direction, a second positioning member 23 for positioning in the X-axis direction, and a fixing part 22 for fixing the hinge part 21. The length Y1 of the connecting part CN in the Y-axis direction is the sum of the length Y2 from the horizontal frame 27 on the +Y-axis side to the end of the vertical frame 28 on the +Y-axis side and the length Y3 from the horizontal frame 27 on the -Y-axis side to the end of the vertical frame 28 on the -Y-axis side. The total length in the Y-axis direction, which is the sum of the length of the fixing part 22 and the length of the second positioning member 23, is approximately equal to the length Y2 from the horizontal frame 27 on the +Y-axis side to the end of the vertical frame 28 on the +Y-axis side.

<<About casters>>
The caster 80 has wheels 81, a shaft 82 penetrating the wheels, and a top plate 83. An X-axis rail 84 extending in the X-axis direction is provided on the top plate 83 to adjust the position in the X-axis direction. An adjustment plate 86 is mounted on this X-axis rail 84, and a female X-axis guide 86a is formed on the adjustment plate 86 so that the position can be adjusted in the X-axis direction. A fixing plate 87 that fixes the position of the adjustment plate 86 in the X-axis direction is disposed so as to correspond to the female X-axis guide 86a. By tightening a bolt (not shown) or the like, the X-axis rail 84 is tightened by the fixing plate 87 and the female X-axis guide 86a, and the position of the adjustment plate 86 in the X-axis direction is fixed.

The adjustment plate 86 is formed with a female Y-axis guide 86b so that the position can be adjusted in the Y-axis direction. A fixed plate 89 that fixes the position of the adjustment plate 86 in the Y-axis direction is arranged to correspond to the female Y-axis guide 86b. The guide rail of the vertical frame 28 shown in FIG. 2 fits into the female Y-axis guide 86b. By tightening a bolt (not shown) or the like, the guide rail of the vertical frame 28 extending in the Y-axis direction is tightened by the fixed plate 89 and the female Y-axis guide 86b, and the position of the adjustment plate 86 in the Y-axis direction is fixed. In this way, the caster 80 passes over the edge PP of the solar panel SP and is prevented from damaging the surface of the solar panel SP.

<<About the connecting parts>>
The connecting portion CN will be described in more detail with reference to Figures 4 and 5. Figure 4 is a plan view and a front view of the periphery of the connecting portion CN of the frame unit 20. In Figure 4, the horizontal frame 27c and the vertical frame 28c of the frame unit 20c are drawn with dashed lines so that the connecting state between the frame unit 20c and the frame unit 20d can be understood. In the lower side of the plan view and the front view of Figure 4, one vertical frame 28c is not drawn so that the second positioning member 23 and the fixing portion 22 that fixes the hinge portion 21 can be understood. Figure 5 is a front view showing the state in which the connecting portion CN is folded 180 degrees at the hinge portion 21. In Figure 5, the vertical frame 28c of the frame unit 20c and the vertical frame 28d of the frame unit 20d are drawn with dashed lines so that the folded state of the connecting frame 26 can be understood. The vertical frame 28c is not drawn so that the second positioning member 23 and the fixing portion 22 that fixes the hinge portion 21 can be understood.

As shown in FIG. 4 and FIG. 5, the connecting frame 26 is composed of a first connecting frame 26-1, a second connecting frame 26-2, and a third connecting frame 26-3. The first connecting frame 26-1 and the second connecting frame 26-2 are connected to each other by the first hinge portion 21-1. The second connecting frame 26-2 and the third connecting frame 26-3 are connected to each other by the second hinge portion 21-2. The first hinge portion 21-1 and the second hinge portion 21-2 only need to have the function of bending 90 degrees or more around the rotation axis RG, and in this embodiment, they have the function of bending 180 degrees or more around the rotation axis RG. The length in the Y-axis direction of the second connecting frame 26-2 is equal to the length from the rotation axis RG of the first hinge portion 21-1 to the rotation axis RG of the second hinge portion 21-2.

The first hinge portion 21-1 and the second hinge portion 21-2 are bent 90 degrees around the rotation axis RG, and because of the length of the second connecting frame 26-2 (Y-axis direction), the guide frames 29c and 29d do not collide. As shown in FIG. 4, the spatial distance (Y-axis direction) from one end of the guide frame 29c to one end of the guide frame 29d is approximately equal to the length (Y-axis direction) of the second connecting frame 26-2.

As shown in FIG. 4, the fixed portion 22 and the second positioning member 23 have substantially the same shape but different lengths in the Y-axis direction. The fixed portion 22 and the second positioning member 23 are slidable along a guide rail formed on the vertical frame 28d and a guide rail formed on the connecting frame 26. The fixed portion 22 and the second positioning member 23 on the +X-axis side in FIG. 4 are positioned when the first hinge portion 21-1 and the second hinge portion 21-2 are folded. The fixed portion 22 and the second positioning member 23 on the -X-axis side in FIG. 4 are positioned when the first hinge portion 21-1 and the second hinge portion 21-2 are at 0 degrees.

The length of the fixing part 22 in the Y-axis direction is longer than the length of the second connecting frame 26-2 in the Y-axis direction. Therefore, one fixing part 22 can fix the rotation axis RG of the first hinge part 21-1 and the rotation axis RG of the second hinge part 21-2.

Figure 6 is an overall plan view showing the state in which frame unit 20c is folded 180 degrees relative to frame unit 20d. Guide frame 29c and guide frame 29d are exactly overlapped in the Z-axis direction. When there are four frame units 20, frame unit 20a to frame unit 20d, as shown in Figure 1, the two folded frame units 20 shown in Figure 6 can be stacked in two layers. This makes it easier for workers to load the maintenance device 100 onto a vehicle or the like, and also makes it easier to handle.

Next, a hinge section different from the first hinge section 21-1 and the second hinge section 21-2 described in Figs. 4-6 will be described with reference to Fig. 7. Fig. 7 is a plan view showing the state in which the frame unit 20c is folded 180 degrees relative to the frame unit 20d at one third hinge section 21B. As mentioned above, if a flanged wheel such as a train wheel is attached to the maintenance unit 60, the guide frame 29 may not be necessary. If there is no guide frame 29, the distance (height) in the Z-axis direction may be short when folding at the hinge section 21.

In FIG. 7, the connecting frame 26 is composed of a first connecting frame 26-1 and a third connecting frame 26-3. The first connecting frame 26-1 and the third connecting frame 26-3 are connected to each other by a third hinge portion 21B. It is preferable that the hinge has a larger diameter than the first or second hinge portion 21 shown in FIG. 4 etc. In this way, it is also possible to fold the frame unit 20c relative to the frame unit 20d at a single third hinge portion 21B.

<Outline of Drive Unit 50>
8 is a plan view and a front view of the drive unit 50. The drive unit 50 may be composed of, for example, two vertical frames 58 and five horizontal frames 27 attached to the vertical frames 58. The horizontal frames 57 and the vertical frames 58 are made of, for example, metal and have a circular or octagonal cross section. In this embodiment, a guide rail is provided in the direction in which the frames extend so that they can be connected to other members with bolts or the like. In order for the drive unit 50 to be attached to the frame unit 20, four or more connection parts 52 are provided on the vertical frame 58. The connection parts 52 are made of a rivet plate, a bolt, or the like, and are connected to the vertical frame 28 of the frame unit 20 described above. In addition, a power source BAT, an electronic control unit 51, a drive motor 53 as a drive unit, a power transmission system 55 that transmits the power of the drive motor 53, and tires 59 connected to the power transmission system 55 are attached to the vertical frame 58 and the horizontal frame 57.

The electronic control unit 51 receives instructions from a remote controller (not shown) operated by an operator and sends a drive signal to the drive motor 53. The drive motor 53 generates a drive force upon receiving the drive signal from the electronic control unit 51. The drive force is transmitted to the tires 59 via a power transmission system 55 having a chain transmission member and a coupling 56.

The power transmission system 55 is provided along the vertical direction (Y-axis direction) of the solar panel unit SPU, and the tires 59 are fixed at a predetermined position of the power transmission system 55. The height of the casters 80 shown in FIG. 2 is Z1, and the height from the installation surface of the tires 59 to the connection part 52 shown in FIG. 8 is also Z1. As described above, the power transmission system 55 and the coupling 56 are connected to these tires 59, so that the driving force from the drive motor 53 is transmitted. With this configuration, when the casters 80 and tires 59 are in contact with the solar panel SP, the drive unit 50 can move the head unit 10, frame unit 20, bottom unit 40, and maintenance unit 60 shown in FIG. 1 in the horizontal direction (X-axis direction).

<Overview of maintenance unit 60>
9 is a plan view, a front view, and a right side view of the maintenance unit 60. In the maintenance unit 60, for example, two vertical frames 68 and two horizontal frames 27 attached to the vertical frames 68 are provided with a main unit MAI, and cleaning units 65 are attached to both sides of the main unit MAI. Four rollers RR are arranged on the vertical frames 68 so that the maintenance unit 60 can move in the Y-axis direction while being placed on the vertical frames 28 of the frame unit 20. As shown in the right side view of FIG. 9, the maintenance unit 60 has a guide section 69 consisting of a guide cover and a plurality of guide wheels. The guide wheels of the guide section 69 come into contact with the guide frame 29 to guide the movement of the maintenance unit 60 placed on the vertical frames 28 of the frame unit 20. Although it is not a member of the maintenance unit 60, the guide frame 29 is shown by a dotted line in the right side view of FIG. 9.

Within the frame formed by the vertical frame 68 and horizontal frame 67 are a power supply BAT, an electronic control unit 61, a winding section 62 as a drive device for moving the maintenance unit 60 in the +Y-axis direction, a hose reel HR that stores a hose HS that supplies liquid, and a solenoid valve SV.

The electronic control unit 61 receives instructions from a remote controller (not shown) operated by an operator and sends a movement signal to the winding unit 62, or opens the solenoid valve SV to release cleaning liquid or water. The winding unit 62 has a drum for winding a rope and a motor for rotating the drum. One end of the rope is fixed to a part of the head unit 10 by tying it, and the maintenance unit 60 is moved in the +Y axis direction by, for example, rotating the motor in the forward direction to wind up the rope (shortening the rope).

The hose reel HR has a drum that stores the hose HS from a water outlet, tank, or detergent container to the maintenance unit 60. The drum of the hose reel HR has a biasing member that generates elastic force, such as a power spring, and may further have a check. One end of the hose HS is designed to extend in the -Y axis direction and is fixed, for example, to a water outlet. For example, when one end of the hose HS is fixed to a water outlet and the winding of the winding part 62 is stopped and the rope is stretched, the winding force of the biasing member, such as a power spring, moves the maintenance unit 60 in the -Y axis direction. In general, the solar panel unit SPU is often tilted, so if the solar panel unit SPU is tilted, the maintenance unit 60 can also move in the -Y axis direction by its own weight. Since the movement in the ±Y axis direction is such a simple structure, the maintenance unit 60 can be made lighter. The winding section 62 and the hose HS may be replaced with a spiral spring, and the drive device may be configured with a drive motor, a power transmission system, tires, etc., as in the drive unit 50 described above.

The cleaning units 65, arranged on both sides of the main device MAI, can be folded up so as to rest on top of the main device MAI, or opened 180 degrees as shown in FIG. 9, by rotating hinges 63 attached to a vertical frame 68. The cleaning units 65 have multiple nozzles 64 connected to hoses HS, a rotating brush RB for brushing the surface of the solar panel SP, a brush cover BC for preventing liquid from splashing, and a height adjustment unit 66. The nozzles 64 spray cleaning liquid etc., while the rotating brush RB rotates to clean the surface of the solar panel SP. The height adjustment unit 66 has a spring, a height adjustment screw, etc., and can adjust the nozzles 64, rotating brush RB, and brush cover BC to the surface height of the solar panel SP.

Although not specifically shown, the maintenance unit 60 can be coated by replacing the cleaning unit 65 or by using a coating part such as a fiber cloth or sponge instead of the rotating brush RB. For example, a coating agent can be supplied from the hose HS instead of cleaning liquid or water, and the coating agent can be applied from the nozzle 64, and the coating agent can be applied to the surface of the solar panel SP by the coating part.

The solar panel maintenance device disclosed herein may have a coating function instead of a cleaning function for cleaning the solar panel. In this embodiment, a power supply BAT is provided in the drive unit 50 and a power supply BAT is also provided in the maintenance unit 60, but they may be integrated into either one. Also, an electronic control unit 51 is provided in the drive unit 50 and an electronic control unit 61 is also provided in the maintenance unit 60, but they may be integrated into either one.

REFERENCE SIGNS LIST 100: Maintenance device, 10: Head unit, 20 (20a, 20b, 20c, 20d), Frame unit, 21 (21-1, 21-2, 21B), Hinge portion, 22: Fixed portion, 23: Second positioning member, 24: First positioning member, 26 (26-1, 26-2, 26-3), Connection frame, 25: Support frame, 27: Horizontal frame, 28: Vertical frame, 29: Guide frame, 40: Bottom unit, 50: Drive unit, 51: Electronic control unit,
52 ... Connection portion, 53 ... Drive motor, 55 ... Power transmission system, 56 ... Coupling,
57 ... horizontal frame, 58 ... vertical frame, 59 ... tire, 60 ... maintenance unit, 61 ... electronic control unit,
62 ... Winding section, 63 ... Rotating hinge, 64 ... Nozzle, 65 ... Cleaning unit, 66 ... Height adjustment section, 67 ... Horizontal frame, 68 ... Vertical frame, 69 ... Guide section, 80 ... Caster, 86 ... Adjustment plate, BAT ... Power supply, BC ... Brush cover, CN ... Connection section, EX ... Extension section, HR ... Hose reel, HS ... Hose
RB: Rotating brush
SPU: Solar panel, SPU: Solar panel unit

Claims (8)

A solar panel maintenance device for maintaining a solar panel unit in which a plurality of solar panels are arranged,
A maintenance unit that performs maintenance work on the solar panel unit;
a frame unit including a first frame extending in a first direction and a second frame extending in a second direction intersecting the first direction, the frame unit being configured to mount the maintenance unit on the first frame;
a first positioning member attached to the frame unit and configured to position another frame unit other than the frame unit in the first direction;
a second positioning member attached to the frame unit and configured to position the another frame unit in the second direction;
a hinge portion attached to the frame unit and capable of folding the other frame unit onto the frame unit by folding relative to the first frame;
a fixing portion that fixes the hinge portion to the frame unit at 0 degrees;
Equipped with
the first positioning member is a C-shaped hook, and the hook is hooked onto the second frame of the another frame unit;
the first frame of the another frame unit has a guide rail extending in the first direction,
the second positioning member slides along the guide rail of the first frame of the frame unit and the guide rail of the first frame of the other frame unit to position the frame unit and the other frame unit.
Solar panel maintenance equipment. The solar panel maintenance device according to claim 1, wherein the hinge portion of the frame unit is arranged in two parts, a first hinge portion and a second hinge portion, side by side in the first direction, and the first hinge portion and the second hinge portion each fold. The first frame of the frame unit has a guide rail extending in the first direction,
The solar panel maintenance device according to claim 2 , wherein the fixing portion of the frame unit slides along the guide rail of the first frame to fix the first hinge portion and the second hinge portion together. a drive unit attached to the frame unit and configured to drive the frame unit in the second direction;
The solar panel maintenance device according to any one of claims 1 to 3, further comprising: The solar panel maintenance device according to claim 1 , wherein the maintenance unit has a drive device for moving in the first direction. The solar panel maintenance device according to claim 5 , wherein the maintenance unit is guided by a guide frame provided parallel to the first frame of the frame unit. The solar panel maintenance device according to any one of claims 1 to 6 , wherein the maintenance unit includes a nozzle that sprays liquid onto the panel surface of the solar panel unit and a cleaning brush that cleans the panel surface of the solar panel unit. 7. The solar panel maintenance device according to claim 1, wherein the maintenance unit includes a nozzle that sprays a coating agent onto a panel surface of the solar panel unit and an application section that applies the coating agent.