WO2021229431A1

WO2021229431A1 - A mobile solar panel system

Info

Publication number: WO2021229431A1
Application number: PCT/IB2021/054000
Authority: WO
Inventors: Johan Berte; Pieter DERBOVEN; Wardje MAES; Jacob BOSSAER
Original assignee: Bosaq Bv
Priority date: 2020-05-15
Filing date: 2021-05-11
Publication date: 2021-11-18
Also published as: BE1028295A1; BE1028295B1

Abstract

In a first aspect, the invention relates to a mobile solar panel system (1) comprising a shipping container (2), a panel module (3) with one or more solar panels (11) provided on a support frame (10), coupled to the container, and equipment for storage and/or consumption of solar energy. The support frame is adapted to guide the panel module through the container opening (8) between a first, stowed position within the container volume (9) and a second, raised position outside the container volume. In particular, in the first position, the panel module is suspended within a central aisle (19) extending from the container opening into the container volume, with side spaces (21) on either side of the aisle housing said equipment. In further aspects, the invention further provides methods for capturing and converting solar energy, for transporting solar panel systems and for moving the solar panels.

Description

A MOBILE SOLAR PANEL SYSTEM

TECHNICAL FIELD The invention relates to movable or mobile solar panel systems. More particularly, the invention relates to containers equipped with a system of solar panels, the solar panels of which are preferably movable between a first, stowed or compact position and a second, erect or active position. PRIOR ART

Shipping containers equipped with movable solar panels are known as such in the prior art. One possible application is to provide electricity in remote areas. For example, US 2017 222 475 describes an elongated, specially adapted container that functions only as a generator. Clearly it is not a standard sea container. A disadvantage is the higher production cost. This can also be disadvantageous for storage and transport. The container is equipped with a system of solar panels. The panels are movable between a transport position, inside the container and an active position, outside the container. The movement is partly controlled by a complex mechanism with gas springs and electric motors. In the active position, the set of panels is still manually slid open. However, this manual sliding of relatively heavy panels can be problematic, especially after prolonged use. It is also not possible to control the electric motors if there are no power supplies. In the active position, some of the panels are supported from the inside of the container doors. Another portion of the panels are supported through the container opening. A drawback of this is that the container opening cannot be opened or closed, in the active position of the panels. Additional equipment such as batteries, sensors and an emergency generator are optionally housed in a separate closable part of the container volume. However, the further subdivision prevents optimal use of space in the container volume.

EP 3 166 221 further describes an assembly of mutually hinged solar panels, and a specially adapted container for storage and transport of the solar panels. The panels are hingedly movable between a folded state (inside the container) and an unfolded state (outside the container). There is also a complex mechanism of gas springs to bring the unfolded panels into an active state (above the container). The container also contains an emergency generator and a battery. Again the whole functions exclusively as a generator.

CN 208 849 707 also describes a container containing a plurality of solar panel modules that are hinged to one another. In the active state, the panel modules are arranged outside the container, supported on the substrate via support posts. As a disadvantage, the substrate must be suitable for this (in terms of flatness and bearing capacity) or made suitable. Another drawback is that the container provides few auxiliary mechanisms to facilitate this arrangement.

US 2018 287 549 further describes a mobile system with, for example, lighting equipment or cooling equipment and means for providing this equipment with solar energy. The system comprises a mobile container and solar panels. During transport, the panels are housed in recesses that have been incorporated into the side walls of the container. However, they are external to the container and therefore relatively vulnerable. There is also a hinged mechanism to move the panels from there into an active position, for capturing solar energy. The cooling equipment or lighting equipment is provided in the container volume itself. However, the layout is not very practical. The container volume is not fully utilised.

US 2013 186450 further describes a solar energy system with a container and a plurality of solar panel modules. The panel modules are equipped with wheels. This makes it possible to wheel the panel modules in and out of the container, along corresponding rails. As a disadvantage, the substrate must again be suitable for the installation of the rails. Another drawback is that the container does not provide further auxiliary mechanisms supporting the panel modules to facilitate the set-up.

Finally, US 2019 044 011 describes a container with a multitude of solar panels and means (namely, steel cables, rails and support pillars) for arranging the solar panels outside the container. The system is quite complex. And again, the substrate must be suitable for this. The container's sole function is energy generation.

In summary, the known, mobile solar panel systems are too complex and/or they offer too few tools to facilitate their installation. Often there are also important requirements for the substrate. As a result, the solar panel system cannot be set up anywhere. Some designs do not allow the opening and closing of the container opening, both in the stowed position and in the active position of the solar panels. A number of advantageous features of mobile solar panel systems are the simplicity of design, the low production costs, the compact and safe transport, the ease of installation, the low maintenance requirements, the closability and the efficient use of space.

The present invention contemplates an improved system. In particular, an attempt is made to solve one or more of the above problems.

SUMMARY OF THE INVENTION

To this end, the invention provides, in a first aspect, a mobile solar panel system according to claim 1. The system comprises a shipping container, a panel module with one or more solar panels provided on a support frame, coupled to the container, and equipment for storage and/or consumption of solar energy. The support frame is adapted to guide the panel module through a container opening between a first, stowed position within the container volume and a second, raised position outside the container volume. In particular, in the first position, the panel module is suspended within a central aisle extending from the container opening into the container volume, with side spaces on either side of the aisle housing said equipment. The shipping container is optionally a standard sea container.

A special advantage is that the system is easily configurable between a transport mode (with the solar panels compactly stored in the aisle), and an active mode (with the solar panels actively arranged above the container for solar energy capture). A multifunctional container is envisaged, with further equipment that is not necessarily limited to the mere generation and storage of electricity. In addition, the container volume is used as efficiently as possible. Namely, the layout with the aisle offers the advantage that the further equipment provided in the side spaces is easily accessible from the aisle for maintenance. That is, in the active mode with the solar panels out of the aisle, outside the container.

The container opening is preferably closable. Optionally, the solar panel system comprises one or more container doors, adapted to selectively open and close the container opening in both the stowed position and in the raised position of the panel module (claims 2-4). An advantage over US 2017 222 475 is that the container volume can also be closed in the active state. Namely, the guiding mechanism does not protrude through the container opening. The guiding mechanism does not interfere with the closing of the container doors. This is important in connection with shielding the equipment provided in the side spaces.

On the other hand, US 2017 222 475 provides a subdivision / shielding within the container volume. This is detrimental to efficient use of space. Preferably, there is therefore no subdivision within the container volume (with, for example, inner walls). Preferably, the container volume forms a coherent whole.

According to a further preferred embodiment, the movement of the panel module between the first and second position can be largely controlled from ground level, by means of a winch (claims 6-7).

In a further preferred embodiment, the aisle extends substantially along a long axis of the container, transverse to the container opening, with side spaces on either side. This is in contrast to US 2017 222 475, which provides a further division and provides poor access to other side spaces and the rear space of the container (claims 8-9).

In further aspects, the invention also provides methods for capturing and converting solar energy (claim 14), for transporting solar panel systems (claim 16) and for moving the solar panels (claim 17).

DESCRIPTION OF THE FIGURES

Figures 1A-B show a mobile solar panel system and a panel module, according to a possible embodiment of the invention.

Figures 2A-C show schematic layouts of a shipping container, according to possible embodiments of the invention.

Figures 3A-K illustrate the movement of the solar panel module between its first, stowed position within the container volume, and its second, raised position outside the container volume, according to a possible embodiment.

Figures 4A-C further illustrate the unfolding of the panel module according to the embodiments of Figs. 3A-K. DETAILED DESCRIPTION

The invention relates to a mobile solar panel system, as well as methods for converting solar energy, for transporting a solar panel system, and for moving solar panels between a stowed position and a raised position.

Unless otherwise defined, all terms used in the description of the invention, including technical and scientific terms, have the meaning as commonly understood by a person skilled in the art to which the invention pertains. For a better understanding of the description of the invention, the following terms are explained explicitly.

In this document, 'a' and 'the' refer to both the singular and the plural, unless the context presupposes otherwise. For example, 'a segment' means one or more segments.

When the term 'around' or 'about' is used in this document with a measurable quantity, a parameter, a duration or moment, and the like, then variations are meant of approx. 20% or less, preferably approx. 10% or less, more preferably approx. 5% or less, even more preferably approx. 1% or less, and even more preferably approx. 0.1% or less than and of the quoted value, insofar as such variations are applicable in the described invention. However, it must be understood that the value of a quantity used where the term 'about' or 'around' is used, is itself specifically disclosed.

The terms 'comprise', 'comprising', 'consist of', 'consisting of', 'provided with', 'have', 'having', 'include', 'including', 'contain', 'containing' are synonyms and are inclusive or open terms that indicate the presence of what follows, and which do not exclude or prevent the presence of other components, characteristics, elements, members, steps, as known from or disclosed in the prior art.

Quoting numerical intervals by endpoints comprises all integers, fractions and/or real numbers between the endpoints, these endpoints included.

In a first aspect, the invention relates to a mobile solar panel system comprising:

- a shipping container with container walls enclosing a container volume, which container forms a container opening at a front of the container, for access to the container volume,

- a panel module comprising one or more solar panels, which panel module is coupled to the container via a support frame, which support frame is adapted to guide the panel module through the container opening between a first, stowed position within the container volume and a second, raised position outside the container volume, for capturing and converting solar energy, and - equipment for storage and/or consumption of the converted solar energy, operatively connected or operatively connectable to the panel module.

In particular, in the first, stowed position, the panel module is suspended within a central aisle extending from the container opening into the container volume, with side spaces on either side of the aisle, in which side spaces the said equipment is housed, and wherein the side spaces are accessible from the aisle in the second, raised position of the panel module outside the container volume.

The shipping container is optionally a standard sea container. This simplifies transportation. Optionally, it is a 10-foot sea container. As an advantage, a shipping container offers a wide base for supporting the solar panels, both in the first position and in the second position. This simplifies on-site installation. In most cases it is not necessary to provide a foundation and/or to adjust the substrate. A 10-foot container has the additional advantage that the system is much more compact than known systems based on a 40-foot container. Transport can therefore be much more efficient, with four systems in the space used by a standard 40-foot container. According to a non-limiting example, the panel surface in the opened or unfolded form is more than 15 m², preferably more than 20 m², more preferably more than 25 m².

As mentioned, the container volume is divided according to a central aisle or a central corridor with (technical) side spaces to the left and right, and possibly a rear space. Preferably, each side space extends from the aisle to the corresponding side wall, with a certain width. Optionally, a rear space extends between the aisle and any rear wall. Alternatively, the aisle extends to the rear wall, or to a second container opening provided at a rear side of the container. The side spaces and any rear space are preferably accessible from the aisle. At least, with the panel module in the second position, outside the container volume and the aisle. Preferably, therefore, no internal walls are provided in the container volume that prevent this accessibility.

Optionally, the shipping container has a long axis (i.e. one of the dimensions 'length', 'width', 'height' is greater than the other two), with the aisle extending along the long axis of the container, between a front side and a rear side of the container. The container opening is then preferably provided at the front side. Generally, the aisle is preferably provided transverse to the container opening. According to a possible embodiment, the container comprises a bottom wall, a top wall, two side walls, a rear wall and container opening along the front side. The aisle provides access to the side spaces located along side walls, and to the rear space located along the rear wall. Preferably, the aisle extends over substantially the entire length of the container up to any rear space located along the rear wall.

Preferably, the solar panels are photovoltaic panels. That is, for the conversion of solar energy into electrical energy. However, the invention is not limited to this in the first instance. The side spaces and any rear space can accommodate (electrical) equipment. Optionally, this equipment comprises an (electrically driven) water purification system. Alternatively or additionally, this equipment comprises means for buffering electrical energy / electricity (e.g. batteries, converters, charge controllers and the like). A particular advantage is that this equipment is easily accessible from the aisle, for example for maintenance.

Accessibility may imply restrictions on the dimensions of the aisle and side spaces. While this is not initially limiting of the invention, it appears optimal that the aisle has a width of about 80 cm or more. In a non-limiting example, the container is a 10-foot sea container with an external length of approximately 2.97 m, an external width of approximately 2.44 m, an external height of approximately 2.59 m, an internal length of approximately 2.80 m, an internal width of approximately 2.33 m, and an internal height of approximately 2.37 m. Preferably, the aisle, the side spaces and any rear space extend over substantially the entire internal height (in this case about 2.37 m high). Thus, with an aisle of approximately 80 cm wide, the side spaces are each approximately 76.5 cm wide.

Generally, each side space is preferably at least 20 cm wide, more preferably at least 30 cm, more preferably at least 40 cm, more preferably at least 50 cm. This is to accommodate the equipment. In general, each side space is preferably at most 160 cm wide, more preferably at most 140 cm, more preferably at most 120 cm, more preferably at most 100 cm, more preferably at most 80 cm. This so that the entire side space can be easily accessible from the aisle up to the side wall. Corresponding dimensions apply to any rear space, also accessible from the aisle. Optionally, both side spaces are approximately the same width.

In the transport mode, the panel module is located in the aisle. The container volume is therefore used efficiently. Optionally, the panels extend parallel to the aisle, i.e. parallel to the side walls of the container. The limited aisle width (e.g. about 80 cm) does not therefore have to be a limitation for the size of the individual support frames for the panels. In possible embodiments, this will indeed require several pivotal movements / rotational movements in order to bring the panels into their second, raised position outside or above the container. Optionally, the solar panel module has a maximum width of 80 cm in its first position.

An important advantage is that the container offers two elongated side spaces, ideal for accommodating further equipment. This equipment is also easily accessible from the aisle (in the active mode with the panel module outside the container, out of the aisle). The invention is thus ideally suited for the design of a multifunctional container. The central corridor remains free in a multitude of applications. This is only occupied during transport (when these applications are not in use). This gives the set-up the most compact possible configuration. In particular, the invention is not limited to containers that only serve as a generator and/or emergency generator.

The solar panel module comprises a support frame and one or more solar panels. Optionally, the module comprises several frames mounted on the support frame. The frames can hinge and/or slide relative to each other, so that the solar panel module is configurable between a compact form and an opened or unfolded form. The compact form is ideal for placement of the module in the aisle, in the first position. The opened or unfolded form is ideally suited in the active mode, for capturing solar energy. Preferably, each frame is a rigid structure with one or more solar panels attached thereto. The module preferably comprises several frames. The solar panel system preferably comprises at least one such module. Optionally, it comprises several modules. As an example, see Fig. 2C. Preferably, the solar panels can be easily locked in their first position to prevent sliding/pivoting.

The system provides a movable mechanism to guide the panel module between its first position and its second position. Preferably, the panel module is coupled to the container via a support mechanism adapted for this guidance. The movable support mechanism already comprises the support frame. Preferably, the movable mechanism comprises still further frames and/or means which can engage with, or which are mountable against one or more container walls. For example, via threaded nuts and threaded bolts through corresponding mounting holes. Especially frames and/or means for use on the outside are preferably mountable-dismountable. They therefore do not interfere with a standard movement of a standard shipping container. They leave the (standard) container geometry untouched. At most, a number of fixing holes are provided for bolted connections according to a fixed pattern. Preferably, all kinds of tolerances are moreover built in, so that the different parts of the support mechanism fit on different containers. The outer shape of the standard container is largely retained, with advantages in terms of transport and storage. The production cost is also lower. After installation they can optionally be used for a next shipping container.

The terms 'guide' and 'guiding', as used herein, indicate the limitation of one or more degrees of freedom during a movement. Preferably, the movable mechanism always maintains a mechanical connection between the container and the panel module. Preferably, the mechanism can be fully manipulated by persons from ground level (i.e. without ladders or lifting means). Optionally, a small stepladder (e.g. four steps) is required for on-site installation.

The container opening is preferably closable. In a further or alternative embodiment, the container is provided with one or more container doors adapted to selectively open and close the container opening in both the stowed position and the raised position of the panel module. An advantage is that the container volume can also be closed in the active state. Naturally, in the raised position, the solar panels may not be supported through the container opening, or from (an inside of) the container doors. The option to close off the container volume is important in connection with shielding any equipment provided in the side spaces.

In a further or alternative embodiment, the support frame comprises a first support frame member adapted to guide the panel module through the container opening, to above the top wall of the container. Optionally, it concerns a hinged guidance. Optionally, the first support frame member forms a recess which allows the support frame to be pivoted over a top edge of the container opening (see also below).

Preferably, the system further comprises means for separately propping the panel module in its raised position, separate from the first support frame member. With the propping means installed on the panel module, the first support frame member is preferably no longer necessary to support the solar panel module. Preferably, it can be disconnected from the panel module. More preferably, the first support frame member can then be moved back within the container volume, up to at the top of the aisle. As an advantage, the container opening is free. The support mechanism does not reach through the container opening. The container opening can thus be closed via the container door(s).

The first support frame member is preferably movable to the top of the aisle, within the container volume, disconnected from the panel module. With a typical interior aisle height of about 2.39m (standard height) to about 2.70m (high cube), the first support frame member in no way impedes access to that aisle. In a preferred embodiment, in the raised position of the panel module, a first support frame member is positioned in the container volume, the solar panel module and/or a second support frame member is positioned outside the container volume, and there is no longer a direct coupling between the two.

In a further or alternative embodiment, the shipping container is a standard 10-foot sea container. As an advantage, the system is very compact. The production cost is also lower. Either the shipping container has a standard height of approximately 2.59 m. Or it is a standard 'high cube' container with an external height of 2.90 m.

In a further or alternative embodiment, the solar panel system is further provided with a pulling means (e.g. a steel cable) and a winch mountable at the rear of the container, adapted for moving the panel module between the first position and the second position. The pulling means and the winch are part of the aforementioned movable mechanism. The winch is provided with a drive, for example a hand crank. This allows manual operation. The winch is preferably detachable (for transport). Optionally, the detached winch can be positioned in the aisle, under the panel module in the first stowed position. This is the transport mode of the system.

In a further or alternative embodiment, the winch is provided on a pulling frame, which pulling frame further comprises a roller element or sliding element for guiding the pulling means around a top edge at the rear of the container. Optionally, the pulling frame comprises a corner part for engaging the top edge. With the pulling frame mounted against the rear wall, the winch can be operated from the rear by a person at ground level. A tension force in the pulling means is guided from above around the container. Preferably, a pulling end can be coupled to the panel module, for moving the panel module under the influence of said tension force.

Optionally, the panel module can be hinged vertically around a top edge of the container, up to above the container. Optionally, the panel module can be shifted further above the container, towards the rear. Optionally, the winch can also be used to rotate the panel module above the container to set a tilt angle (advantageous for optimal orientation towards the sun).

In a further or alternative embodiment, the support frame is suspended by guide means from a guide track, for forward -rearward guidance of the panel module along the aisle towards the container opening, and for rotating guidance around the guide means in an end-of-run position of the guide means at the front. Preferably, the guide means is blocked in the end-of-run position for this purpose. Optionally, the guide means is blocked via a pin, which pin moreover forms a pivot axis for rotating guidance around the guide means. The guide track extends along the aisle, above the aisle. Optionally, the guide track is attached under the top wall of the container. The guide means may comprise wheels and/or slide blocks for guiding along the guide track (e.g. a rail or rails).

Preferably, the support frame forms a recess which allows the support frame to be rotated to over a top edge of the container opening, while a first support frame member remains coupled to the guide track. That is, to bring the panel module above the container (preferably the panel module is in the second position above the container).

In a further or alternative embodiment, the guide means is positioned vertically above a centre of gravity of the panel module in the first position. As a result, the panel module is stably suspended under the guide means in the first position.

In a further or alternate embodiment, the support frame comprises a first support frame member and a second support frame member slidably coupled to the first support frame member and adapted for rearward guiding of the panel module above the container. Optionally, both parts are detachably attached to each other (e.g. in the first position). The second frame member allows to slide the panel module further backwards as soon as the first frame member has been turned over the top edge of the container opening.

In a further or alternative embodiment, the solar panel system comprises water purifying means provided in one or both side spaces, operatively connected or operatively connectable to the panel module. This allows the system to be used for water purification in remote areas (without power supply). In particular, the invention contemplates a container solution for disaster relief, wherein the solar panel system is able to operate autonomously for electricity production and/or for water purification.

Alternatively, the solar panel system comprises further equipment for energy generation, storage, and/or further transformation. Optionally, it is an energy container with an emergency generator and a certain storage capacity for electrical energy.

In a second aspect, the invention provides a method for capturing, converting, and further storage and/or consumption of solar energy by means of a solar panel system as described above. The panel module is or will be configured in the second, raised position outside the container. The same features and advantages can be reiterated in this regard. Optionally, the method further comprises purifying water via water purifying means provided in one or both side spaces, operatively connected to the solar panels. In a third aspect, the invention provides a method for transporting a solar panel system as described above. The panel module is or will be configured in the first, stowed state within the container volume. The same features and advantages can be reiterated in this regard. In a further preferred embodiment, the panel module comprises a plurality of frames that can hinge relative to each other between an opened shape and a compact form. More preferably, the pivotal movements can be blocked in the compact form via locking pins and/or locking bolts. Reference is also made to the description of Fig. IB.

In a fourth aspect, the invention provides a further method for moving two or more solar panels coupled to a shipping container between a first, stowed position within a container volume of the container and a second, raised position outside the container volume, comprising:

- moving the solar panels from the first position, along a central aisle provided in the container volume, and through a container opening of the container in the front,

- erecting the solar panels above the container, in the second position, for capturing solar energy.

In particular, the container volume provides side spaces on either side of the aisle, and accessible from the aisle in the second position of the solar panels, which side spaces comprise means for storage and/or consumption of solar energy, operatively connected or connectable to the solar panels. Preferably, the device according to the first aspect is suitable for carrying out the method.

Optionally, the solar panels are brought from the first position into an intermediate position, outside and in front of the container volume. They still take on their compact form. The module is locked in this intermediate position, while the solar panels are opened / folded out in the meantime. Preferably, this comprises mutual pivotal movements of frames around axes which are arranged vertically (and on which gravity therefore has no influence). Subsequently, the opened / unfolded module is brought from the intermediate position to its second, active position above the container.

Optionally, the movement is controlled at least partially via a pulling means from a winch, which winch is mounted on a rear side of the container. Preferably, the solar panels remain mechanically coupled to the container during the entire movement. In what follows, the invention is described by way of non-limiting examples and figures illustrating the invention, and which are not intended to and should not be interpreted as limiting the scope of the invention.

Figure 1A shows a mobile solar panel system 1, according to a possible embodiment of the invention. The system 1 comprises a shipping container 2, and a panel module 3 suspended in the shipping container 2.

The shipping container 2 comprises a bottom wall 4, a top wall 5, a rear wall 6 and two opposite side walls 7', 7". The shipping container 2 forms a container opening 8 at the front. This gives access to an internal container volume 9 enclosed by the container walls 4, 5, 6, 7. Optionally, the shipping container 2 further comprises a container door or container doors (not shown), for selectively opening and closing the container opening 8. Optionally, the shipping container 2 is a standard shipping container 2, for example a 10-foot sea container. In the first instance, this is not limiting of the invention.

The panel module 3 suspended in the container volume 9 comprises a support frame 10 and one or more solar panels 11 attached to the support frame 10. More specifically, the support frame 10 is suspended from a guide track 12 which forms part of a mechanism for guiding the panel module 3 between the shown, first position (with the panel module 3 stowed in the container volume 9) and a second position (where the panel module 3 is erected outside the container volume 9). For the second position, reference is also made to the non-limiting embodiment of Fig. 3K. The guide track 12 is provided under the top wall 5 of the container 2, transverse to the container opening 8. The guide track 12 is optionally attached against or to an underside of said top wall 5. Preferably, the guide track 12 is at least attached to the door frames, because these provide more rigidity.

Figure IB shows a perspective view of the same panel module 3, suspended from the guide track 12. The container 2 itself is not shown.

The panel module 3 comprises several frames 13 which can hinge or slide mutually. One or more solar panels 11 are attached to each frame 13. By mutual pivotal movements (and/or sliding movements) of the frames 13, the panel module 3 is configurable between a compact form (shown in Fig. IB) and an opened or unfolded form. Possible pivotal movements are illustrated in Fig. 4A-C, according to the embodiment of Fig. 1A-B. The compact form is suitable for compact storage of the panel module 3 in the container volume 9. This is shown in Fig. 1A. The opened or unfolded form is suitable for solar energy capture and conversion, outside the container volume 9. This is shown in Fig. 3K.

Preferably, the panel module 3 also provides a plurality of locking holes 38 which allow to prevent mutual movement (e.g. hinging or sliding) via a simple locking, in the compact form. The panel module 3 according to Fig. IB and Fig. 4A-C comprises for this purpose at the top and bottom (in Fig. IB at the front and at the rear) a sequence of locking holes 38' and pivot holes 39. The pivot holes 39 are used for mutually hinged mounting of the side frames 13" to the main frames 13', by means of hinge pins. The locking holes 38' can be used for securing the same, via locking pins. The panel module 3 provides further locking holes 38" for securing the outer side frames 13" on both sides.

The support frame 10 is at least suspended from the guide track 12 via a guide means 14 coupled to the guide track 12, and is movable along the guide track 12. Thus movable in the direction of the container opening 8. In the first, stowed position of the panel module 3, the guide means 14 engages the guide track 12 at the level of a point of engagement 15 located vertically 16 above a centre of gravity 17 of the panel module 3. As an advantage, the panel module 3 is thus, in the first, stowed position, stably suspended under the guide track 12, via the point of engagement 15.

Figure 2A shows a schematic layout of a possible shipping container 2, according to the invention. The shipping container 2 comprises a bottom wall 4, a top wall 5, a rear wall 6 and two side walls 7', 7". Together they enclose an internal container volume 9, with a front container opening 8 providing access to the container volume 9. The container 2 also provides two container doors 18 for selectively opening and closing the container opening 8.

The internal container volume 9 comprises a central aisle 19 which extends from the container opening 8, into the container volume 9, to a container end part (= rear end part or rear space) 20. Technical spaces 21 are provided on either side of the aisle 19. Advantageously, the aisle 19 can accommodate the panel module 3 in its first, stowed position. This is the 'transport mode' of the solar panel system according to the invention. On site, the panel module 3 can be brought into its second, raised position along the aisle 19 and through the container opening 8. The aisle 19 has then become free. The technical spaces 21 on either side of the aisle 19, and possibly also a rear end part 20 of the container 2, are now accessible from the aisle. This is the 'active mode' of the solar panel system 1 according to the invention. Maintenance work on technical installations can be easily carried out from the aisle 19.

Figure 2B shows an alternative layout of the shipping container 2, with an aisle 19 extending from the container opening 8 into the container volume 9. Technical spaces 21 are located on either side of the aisle 19. These are accessible from the aisle 19, for example for maintenance work. Once again, the aisle can accommodate the panel module 3, in its first position (shown in Fig. 2B).

Figure 2C shows another alternative layout of the shipping container 2. It comprises container openings 8 at two opposite end parts 20 of the container 2. Container doors 18 are provided at both openings 8. A central aisle 19 extends between the openings 8, with technical spaces 21 on either side. According to a possible embodiment, two panel modules 3', 3" are provided. Each is movable along the aisle 19 through a corresponding container opening 8, into a corresponding second, raised position. Indeed, Fig. 2C again shows the first, stowed position.

Figures 3A-K illustrate the movement of the solar panel module 3 between its first, stowed position within the container volume 9, and its second, raised position outside the container volume 9, according to a possible embodiment. The stowed position is shown in Fig. 1A. The raised position is shown in Fig. 3K.

Fig. 3A shows a cross-section of the solar panel system 1 according to the embodiment of Fig. 1A-B. In a first step, a pull bar 22 is mounted at the top of the front of the panel module 3. In this position, the pull bar 22 projects obliquely downwardly through the container opening 8 and at an oblique angle to the vertical. Preferably, the pull bar 22 is rigidly (i.e. non-sliding and non-hinged) connected to the support frame 10 of the panel module 3. This can be done, for example, via threaded nuts and corresponding threaded bolts through mounting holes. The pull bar 22 can form a handle for manually moving the panel module 3 out of the container volume 9, as shown in Fig. 3C. In this position, the support frame 10 of the panel module 3 is still held in place by an immobilisation system 31 (e.g. a fork). The immobilisation system 31 increases the stability during transport. However, this is not limiting of the invention.

Fig. 3B shows another cross section. This illustrates how, in a next step, a winch 23 is mounted on the rear wall 6 of the container 2, along the outside. The winch 23 provides a pulling means 27 (e.g. a steel cable) and a drive (e.g. a hand crank) to retract / slacken the pulling means 27. In general, the invention is not limited to an electric, a hydraulic or a manual drive for the winch 23. The winch 23 is mounted on a pulling frame 24 which rests via a corner part 25 over a top edge of the container 2. Near the corner part 25, the pulling frame 24 provides another guide (e.g. a roller element 26) to divert the tension force in the pulling means 27 around the top edge of the container 2. The pulling frame 24 with corner part 25 simplifies installation. It also allows rigid mounting of the winch 23 to the rear wall 6 (e.g. via threaded nuts and threaded bolts through associated mounting holes). The winch 23 is preferably provided sufficiently low, so that it can be operated manually by a person standing behind the container 2.

Fig. 3C shows another cross section. This illustrates how, in a next step, the panel module 3 is moved forward along the guide track 12, towards the container opening 8. During this movement, the panel module 3 remains stably suspended under the aforementioned point of engagement 15. Incidentally, a slider 29 (also coupled to the guide track 12) prevents vertical rotation of the panel module 3 below its point of engagement 15. This until the point of engagement 15 reaches its end-of-run point 30 along the guide track 12. The point of engagement 15 is fixed in this position by means of a pin. At the same time, the slider 29 (which previously prevented vertical rotation of the panel module 3) can leave the guide track 12 in the process. Incidentally, the said pin will later serve as a pivot axis for rotating the panel module 3 vertically around the point of engagement 15 in the end-of-run position. See Fig. 3D. Subsequently, the pulling means 27 is guided from the winch 23 around the roller element 26 and over the container 2. A pulling end 28 of the pulling means 27 is attached to the support frame 10 of the panel module 3.

Fig. 3D shows another cross-section. This illustrates how, in a next step, the panel module 3 is raised vertically hinged (i.e. hinged about a horizontal axis) by means of the winch 23 and the pulling means 27. The panel module 3 pivots around its point of engagement 15 in the end-of-run position. As stated, the slider 29 is now no longer trapped in the guide track 12. Thus, the slider 29 no longer prevents the panel module 3 from pivoting vertically. It is true that the hinge movement is additionally stabilised via a support slat 32 which engages the slider 29 by means of a slotted hole.

Fig. 3E shows another cross-section. This illustrates the solar panel system 1 with the panel module 3 positioned in an intermediate position, between the stowed position of Fig. 1A and the raised position of Fig. 3K. Preferably, the winch 23 and/or the support slat 32 provide a locking mechanism to lock the panel module 3 in this intermediate position. With the panel module 3 locked in the intermediate position, the panel module 3 is then opened / folded out. See Fig. 3F. In the embodiment shown, the panel module 3 comprises a set of mutually hinged main frames 13' and side frames 13". Each main frame 13' is hinged directly to the support frame 10 and/or to a side edge portion of another main frame 13'. Each side frame 13" is hinged directly to a top edge portion or bottom edge portion of a main frame 13'. The orientation of the 'top edge portions', 'bottom edge portions' and 'side edge portions' is incidentally here with reference to the intermediate position of Figs. 3E-F for the panel module 3. Each main frame 13' and the attached panels 11' is twice as large and therefore approximately twice as heavy as each side frame 13" and the panels 11" attached thereto. In addition, the side frames 13" are carried by the main frames 13', which can make the movement of the main frames 13' even more difficult. It is thus very advantageous, in this intermediate position, that the main frames 13' are pivotable relative to each other about vertical axes 16. Since the shafts 16 are oriented vertically, the force of gravity has little influence on this pivotal movement of the main frames 13'. Reference is also made to Fig. 4A. The side frames 13" and the panels 11" attached to them are lighter. It therefore poses few problems to pivot these side frames 13" open. For example, all pivotal movements are done manually. The opening / folding out of the panel module 3 is also described in Fig. 4A-C.

Fig. 3F shows another cross section. This illustrates the solar panel system 1 of which the panel module 3 is completely unfolded / folded out. The panel module 3 is still locked in the intermediate position. An additional support cable 33 is provided for stabilisation. By the way, the support frame 10 provides a recess 34 which allows the support frame 10 to pivot further vertically around the top wall 5 of the container 2. Thus, with the point of engagement 15 of the support frame 10 located below the top wall 5, still coupled to the guide track 12. And with the mounting of the support frames 13 located above the top wall 5. This situation is shown in Fig. 3G. The entire pivotal movement is controlled from the winch 23. Note that the centre of gravity of the panel module 3 in the unfolded / folded out position is located relatively close to the point of engagement 15 (= the pivot point). The pivotal movement therefore requires little effort.

Fig. 3G shows another cross section. As indicated, the support frame 10 consists of a first support frame member 10 and a second support frame member 10 which are mutually coupled. From the position in Fig. 3G, the second support frame member 10" (with the mounting of the support frames 13) is now extended with respect to the first support frame member 10' (with the point of engagement 15 in the guide track 12, and with the recess 34 around the top wall 5 of the container 2). This extending movement is controlled from the winch 23, via the pulling means 27. Namely, the pulling end 28 of the pulling means 27 is attached to one end of the second support frame member 10". The whole of support frames 13', 13" and solar panels 11', 11" is moved horizontally in sliding movement above and along the top wall 5 of the container 2.

Fig. 3H shows another cross section. The second support frame member 10" provides a hinged base 35 which rests on the top wall 5 of the container 2. The base 35 provides mounting holes for mounting the base 35 to the top wall via mounting means (e.g., metal screws). In a preferred embodiment, the base comprises 35 weld nuts that correspond to mounting holes through the top wall 5. This allows the base 35 to be secured from the container volume 9 via threaded bolts. It is not necessary to counter the (welded) nuts above the container. In a next step, the pulling means 27 is released from the support frame 10, and then attached to the end of the pull bar 22.

Fig. 31 shows another cross-section. This illustrates how in a next step the assembly of support frames 13 and solar panels 11 (mounted on the second support frame member 10"), and hingedly attached at the height of the base 35, are pivoted vertically with respect to the base 35. This pivoting is again controlled from the winch 23, with the pull bar 22 acting as a lever. The pull bar 22 thus has at least a double function. The oblique angle of the pull bar 22 with the support frame 10 (more particularly with the second support frame member 10") makes the pull bar (1) particularly suitable as a handle in the situation of Figs. 3A-C, and (2) allows the pull bar to serve as a lever in the situation of Fig. 3H-I. For this purpose, the pull bar 22 preferably makes an angle of a minimum of 15° and at most 75° with the second support frame part 10", preferably a minimum of 30° and at most 60°.

Finally, the whole of support frames and solar panels is supported even further by means of propping means 36. This is shown in Fig. 3J-K. The solar panels 11 are arranged side by side in one plane, at a predetermined tilt angle 37 with the vertical 16. The tilt angle 37 can be between 0° and 90°. The tilt angle 37 allows to maximise the effective area for solar energy capture. In this raised position, the solar panels 11 preferably provide shade for the entire top wall 5 of the container 2, and more preferably for the entire container 2. This is beneficial for heat management inside the container 2, and for the life of the system 1 (e.g. in terms of rust).

Figures 4A-C further illustrate the unfolding of the panel module 3 when it is in the intermediate position of Fig. 3E-F. First, the main frames 13' are hinged open via mutual pivot axes 16. The said pivot axes 16 are all vertically oriented here (Fig. 4A) - the associated pivotal movements are thus mainly horizontal. It is advantageous that the force of gravity cannot act on such horizontal pivotal movements. Then the (smaller) side frames 13" are still hinged open. Namely, they are hingedly mounted on the main frames 13', around axes which are oriented horizontally (Fig. 4B). The unfolded / folded out panel module 3 is finally shown in Fig. 4C. The panel module 3 is thus easily configurable between a very compact form (Fig. 4A) and an opened form (Fig. 4C).

Example 1: a solar panel module

A possible solar panel module according to the invention comprises 16 standard photovoltaic solar panels of 310 watt peak each. The solar panels are attached to a framework of four main frames (two solar panels each) and 8 side frames (one solar panel each). Optionally, it concerns the embodiment shown in Fig. 4A-C. Each solar panel has dimensions of approximately 1.65 m by 1.00 m. The total installed peak power is approximately 5 kilowatts peak. The total panel area is approximately 26.4 m². Via mutual pivotal movements of the frames, the solar panel module can be configured between an opened form and a compact form. In its compact form, the module is positionable within a central aisle (width approximately 80 cm) in a 10-foot shipping container. The numbered elements in the figures are:

1 solar panel system

2 shipping container

3 panel module

4 bottom wall

5 top wall

6 rear wall

7 side wall

8 container opening

9 container volume

10 support frame

10' first support frame member

10" second support frame member

11 solar panel

12 guide track

13 frame

13' main frame

13" side frame

14 guide means 15 point of engagement

16 vertical / vertical axis

17 centre of gravity

18 container door

19 (central) aisle

20 end part / rear space

21 (technical) side space

22 pull bar

23 winch

24 pulling frame

25 corner part

26 roller element / sliding element

27 pulling means

28 pulling end

29 slider

30 end-of-run point / end-of-run position

31 immobilisation system

32 support slat

33 support cable

34 recess

35 base

36 propping means

37 tilt angle

38 locking means / locking hole

39 hinge means / hinge hole

The present invention should not be construed as being limited to the embodiments described above and certain modifications or changes may be added to the examples described without having to re-evaluate the appended claims.

Claims

1. A mobile solar panel system (1) comprising:

- a shipping container (2) with container walls (4, 5, 6, 7) enclosing a container volume (9), which container (2) forms a container opening (8) at a front of the container (2), for accessing the container volume (9),

- a panel module (3) with one or more solar panels (11), which panel module (3) is coupled to the container (2) via a support frame (10), and which support frame (10) is adapted to guide the panel module (3) through the container opening (8) between a first, stowed position within the container volume (9) and a second, raised position outside the container volume (9), for capturing and converting solar energy, and

- equipment for storage and/or consumption of the converted solar energy, operatively connected or operatively connectable to the panel module (3), characterised in that in the first, stowed position, the panel module (3) is suspended within a central aisle (19) extending from the container opening (8) into the container volume (9), with side spaces (21) on either side of the aisle (19) housing said equipment, and wherein the side spaces (21) are accessible from the aisle (19) in the second, raised position of the panel module (3) outside the container volume (9).

2. The solar panel system (1) according to claim 1, further comprising one or more container doors (18) adapted to selectively open and close the container opening (8), in both the stowed position and the raised position of the panel module (3).

3. The solar panel system (1) of any of claims 1-2, wherein a first support frame member (10') of the support frame (10), adapted for guiding the panel module (3) through the container opening (8), is disconnected in the raised position from the panel module (3).

4. The solar panel system (1) according to claim 3, wherein the first support frame member (10') is positioned in the raised position at the top of the aisle, within the container volume (9).

5. The solar panel system (1) according to any of claims 1-4, wherein the shipping container (2) is a standard 10-foot sea container.

6. The solar panel system (1) according to any of claims 1 to 5, further comprising a pulling means (27) and a winch (23) mountable on a rear side of the container (2), adapted for moving the panel module (3) between the first position and the second position.

7. The solar panel system (1) according to claim 6, with the winch (23) provided on a pulling frame (24), the pulling frame (24) further comprising a rolling element or sliding element (26) for guiding the pulling means (27) around a top edge on the back of the container (2).

8. The solar panel system (1) according to any of claims 1-7, wherein the solar panels (11) in the first, stowed position extend parallel to the aisle (19).

9. The solar panel system (1) according to any of claims 1-8, wherein the aisle (19) extends along a long axis of the container (2) up to a rear space (20) enclosed by the container volume (9).

10. The solar panel system (1) according to any of claims 1-9, wherein the support frame (10) is suspended via a guide means (14) from a guide track (12), with means for pivotally locking the guide means (14) in an end-of-run position (30) at the front of the guide track (12).

11. The solar panel system (1) according to claim 10, wherein the guide means (14) is positioned vertically above a centre of gravity (17) of the panel module (3) in the first position.

12. The solar panel system (1) according to any of claims 3-4, wherein the support frame (10) comprises a first support frame member (10') and a second support frame member (10"), slidingly coupled to the first support frame member (10'), and adapted for sliding guidance of the panel module (3) above the container

(2).

13. The solar panel system (1) according to any of the preceding claims, wherein said equipment comprises water purification equipment provided in one or both side spaces (21), operatively connected or operatively connectable to the panel module (3).

14. A method for capturing, converting, and further storage and/or consumption of solar energy by means of a solar panel system (1) according to any of claims 1- 13, characterised in that the panel module (3) is in the second, raised position outside the container volume (9).

15. The method according to claim 14, comprising purifying water via water purification equipment provided in one or both side spaces (21) operatively connected to the solar panel module (3).

16. A method of transporting a solar panel system (1) according to any of claims 1- 13, characterised in that the panel module (3) is in the first, stowed position within the container volume (9).

17. A method of moving two or more solar panels (11) coupled to a shipping container (2) between a first, stowed position within a container volume (9) of the container (2) and a second, raised position outside the container volume (9), comprising:

- moving the solar panels (11) from the first position, along a central aisle (19) provided in the container volume (2), and through a container opening (8) at a front side of the container (2), and

- erecting the solar panels (11) above the container (2), in the second position, for capturing solar energy, characterised in that the container volume (9) provides side spaces (21) on either side of the aisle (19), and accessible from the aisle (19) in the second position of the solar panels (11), which side spaces (21) comprise equipment for storage and/or consumption of solar energy, operatively connected or operatively connectable to the solar panels (11).

18. Method according to claim 17, wherein the container opening (8) is closable by means of container doors (18), in both the first position and in the second position of the panel module (3).

19. The method according to any of claims 17-18, wherein said movement is controlled at least in part via a pulling means (27) from a winch (23), which winch (23) is mounted on a rear side of the container (2).

20. The method according to any of claims 17-19, wherein the solar panels (11) are mechanically coupled to the container (2) throughout the entire movement.