Apparatus and method for solar energy collector

A system and method for a portable solar cell array system is provided. One embodiment has a first, second and third plurality of solar cell panels, a support structure, a lower assembly slidably coupled to the support structure, a center assembly secured to the support structure, wherein the center assembly is secured to the support structure, and an upper assembly slidably coupled to the support structure. When in a closed configuration, the first, second and third plurality of solar cell are stacked above each other and are within the support structure. When in an open configuration, the first, second and third plurality of solar cell panels are aligned in an upward orientation in a first row, second row, and third row to collect solar radiation.

BACKGROUND OF THE INVENTION

Photovoltaic cells, commonly referred to as solar cells, are used to convert sunlight into electrical energy. Typically, one solar cell, or an array of solar cells, are located on a fixed structure, such as on the ground, or on a vehicle or vessel.

Portable solar cells have also been developed. However, electric output and capacity is limited by the area of the solar cell that can be exposed to sunlight, the weight of a solar cell system, the need for a support structure to secure the solar cell system. That is, there has been a limiting size (area of the photovoltaic solar cells) of a portable solar cell system that can be easily transported, set up, and used for generation of electricity.

Accordingly, in the arts of solar cell power generation, there is a need in the arts for improved methods, apparatus, and systems for a larger scale, portable solar cell generator system.

SUMMARY OF THE INVENTION

A system and method for a portable solar cell array system is provided. One embodiment has a first, second and third plurality of solar cell panels, a ground support structure, a lower assembly slidably coupled to the ground support structure, a center assembly secured to the support structure, wherein the center assembly is secured to the ground support structure, and an upper assembly slidably coupled to the ground support structure. When in a closed configuration, the first, second and third plurality of solar cell are stacked above each other and are within the ground support structure. When in an open configuration, the first, second and third plurality of solar cell panels are aligned in an upward orientation in a first row, second row, and third row to collect solar radiation.

DETAILED DESCRIPTION

FIG.1is a diagram of a nonlimiting example embodiment of a portable solar cell array100in a closed configuration, interchangeably referred to herein as a folded up configuration.FIG.2is a diagram of an open configuration of the portable solar cell array100.

Preferred embodiments of the portable solar cell array100comprise nine solar cell panels102a-102i(generically referred herein using reference numeral102), a ground support structure104, an optional power conditioning unit106, and an optional energy storage system108. The ground support structure104supports a lower assembly110with three solar cell panels102g-i, a center assembly112with three solar cell panels102d-f, and an upper assembly114with three solar cell panels102a-c. In some embodiments, wheels or rollers may be secured to the bottom of the support structure104to facilitate movement of the portable solar cell array100. Optionally, ground support members (legs) secured to the support structure104may be used to stabilize the portable solar cell array100when in the open configuration.

When the portable solar cell array100is in the closed configuration, the nine solar panels102a-102iare oriented in a stacked configuration. In alternative embodiments, more than nine solar cell panels102, or less than nine solar cell panels102, may be used in the portable solar cell array100.

When in the closed configuration, the bottom surface area of the portable solar cell array100substantially corresponds to the surface area of a single solar cell panel102. Accordingly, the portable solar cell array100occupies a relatively small footprint space when in the closed configuration. Furthermore, the support structure104secures the solar cell panels102a-102iin a safe protective manner since the solar cell panels102are withing the interior space of the support structure104.

Also, when in the closed configuration, the solar cell panels102a-bare facing in a downward direction and are oriented over the solar cell panel102cso as not to be exposed to potential damage that might be caused by inadvertent contact with an object. The solar cell panels102d-iare similarly configured.

In the various embodiments, the support structure104, the lower assembly110, the center assembly112, and the upper assembly114are preferably made from a rigid, light weight durable material, such as a metal, a plastic, composite, or the like. Because of the relatively lightweight, small compact size of the portable solar cell array100when in the closed configuration, the portable solar cell array100may be easily and safely moved to a location of use. For example, the portable solar cell array100may be fabricated at a manufacturing facility, and then transported to a remote rural location for use. Preferably, the relatively light weight portable solar cell array100may be easily moved by one or more individuals, and/or moved by a mechanical device such as a forklift, crane, lift, rollers, wheels or the like.

As illustrated inFIG.2, when the portable solar cell array100is in the open configuration, the first plurality of solar cell panels102a-care aligned in an upward and an optional tilted orientation in a first row202to collect solar radiation, the second plurality of solar cell panels102d-fare aligned in the upward and an optional tilted orientation in a second row204to collect the solar radiation, and the third plurality of solar cell panels102g-iare aligned in the upward and an optional tilted orientation in a third row206to collect the solar radiation. Preferably, the portable solar cell array100is aligned along the sun's azimuth so that the plurality of solar cell panels102are aligned with and directed towards the sun to collect the solar radiation. Each solar cell panel102may employ a tilt support member (seeFIG.3) to adjust the tilt angle of the solar cell panels. Preferably, the tilt support members are adjustable, and may allow a tilt angle of between zero degrees and sixty degrees, though any tilt angle range may be designed.

Each of the solar cell panels102a-102iare comprised of one or more individual solar cells208that are electrically coupled together. In the example embodiment illustrated inFIG.2, each of the solar cell panels102a-102iare comprised of eighteen individual solar cells208. In other embodiments, any suitable number of individual solar cells208may be used and arranged in any suitable configuration. Each of the individual solar cells208are fabricated on, or secured to, a rigid, light weight durable substrate material. Preferably, the sunlight receiving surfaces of the solar cells are covered with a transparent, weather and damage resistant covering.

“Comprising,” “including,” and “having” (and conjugations thereof) are used interchangeably to mean including but not necessarily limited to, and are open-ended terms not intended to exclude additional, elements or method steps not expressly recited.

Terms such as “first”, “second”, and “third” are used to distinguish or identify various members of a group, or the like, and are not intended to denote a serial, chronological, or numerical limitation.

“Coupled” means connected, either permanently or releasably, whether directly or indirectly through intervening components. “Secured to” means directly connected without intervening components.

“Communicatively coupled” means that an electronic device exchanges information with another electronic device, either wirelessly or with a wire based connector, whether directly or indirectly. “Controllably coupled” means that an electronic device controls operation of another electronic device. “Electrically coupled” means that one or more conductors of at least two electronic devices (e.g., the solar cell panels102a-102i, the power conditioning unit106, and/or the energy storage system108) are electrically connected to transmit electricity (electrical power).

Returning toFIG.1, upper assembly114is secured to the support structure104using a suitable slider system116. The slider system116allows the installer to slide the lower assembly110in a backward direction out from the support structure104beyond the rear of the lower assembly110. The upper assembly114is slid outward to an extent that enables the installer to fold open, in a rotational manner, the solar panels102aand102bso that the solar panels102a-102ccan be arranged in the upper row202(FIG.2). Further, the installer can fold open the solar panels102dand102ewithout engaging the front of the upper assembly114.

The lower assembly110is secured to the support structure104using a suitable slider system118. The slider system118allows the installer to slide the lower assembly110in a forward direction out from the support structure104and beyond the front of the lower assembly110. The lower assembly110is slid outward to an extent that enables the installer to fold open the solar panels102gand102h, in a rotational manner, so that the solar panels102g-102ican be arranged in the lower row206(FIG.2) without engaging the front of the support structure104.

In the various embodiments, optionally, the solar panels102a-102iare electrically coupled to the optional power conditioning unit106via suitable conductors. The conductors are durable flexible connecting wires that allow the portable solar cell array100to be opened and closed as needed. The conductors (not shown) may be located inside of the various members of the support structure104, the lower assembly110, the center assembly112, and/or the upper assembly114. Alternatively, or additionally, the conductors may be secured to the support structure104, the lower assembly110, the center assembly112, and/or the upper assembly114using a suitable fastening means, such as, but not limited to, plastic or wire ties, zip ties, retaining clips, string, and/or clamps. Electrically coupling the various component prior to transportation of the portable solar cell array100to the use site simplifies installation and operation of the portable solar cell array100at the use site, particularly if the installers are not technicians familiar with installation of solar cell power systems.

The optional power conditioning unit106conditions the electrical power received from the solar panels102a-102i. In some embodiments, the voltage of the received power generated by the solar cells208is converted to another predefined voltage, such as a voltage of the energy storage system108or a voltage used by other devices, such as electric lights, tools, communication devices, or the like. Alternatively, or additionally, the current received from the solar panels102a-102imay be changed from direct current (DC) to alternating current (AC) by the power conditioning unit106. In some embodiments, the power conditioning unit106is secured to the support structure104at a desired location. Alternatively, the power conditioning unit106may be removable and/or portable so as to reduce the total weight of the portable solar cell array100. In such embodiments, a suitable plug or receptacle may be disposed on the support structure104to enable electrical coupling of the solar cell panels102to the power conditioning unit106, or coupling the solar cell panels102to another electrical device that utilizes the electrical power generated by the solar panels102.

In some embodiments, the optional energy storage system108may be electrically coupled to the power conditioning unit106and/or to the solar cell panels102. The energy storage system108stores power received from the portable solar cell array100for later use by another electrical device. In some embodiments, the energy storage system108may be secured to the support structure104at a desired location. Alternatively, the energy storage system108may be removable and/or portable to reduce the total weight of the portable solar cell array100. Non limiting examples of the energy storage system108may be a rechargeable battery, capacitors, or the like.

FIG.3is a diagram of the portable solar cell array100after the lower assembly110has been slid outwardly to its extended position (interchangeably referred to herein as the outwardly extended configuration) for the support structure104. In an example embodiment, the support structure104comprises a plurality of horizontally oriented support members302and vertically oriented support members34that are secured together at their ends. The lowest members302form the base of the support structure104. In the example embodiment, the support members302,304cooperatively define a rigid support structure104that securely and safely holds the solar panels102a-102iand their associated components when the portable solar cell array100in in the closed configuration and the open configuration, and during intermediate configurations (such as the configuration illustrated inFIG.3).

In the example embodiment, the support members302,304are made of a tubular rigid metal with the ends of the members302,304welded together during fabrication of the portable solar cell array100. Alternatively, or additionally, other fastening means such as screws, braces, tabs, bolts, detents or the like may be used in the various embodiments to secure the members302,304together.

In a preferred embodiment, hollow tubing is used for one or more of the members302,304(and other components of the portable solar cell array100) to increase structural strength while minimizing overall weight of the support structure104. Other embodiments may employ other materials and/or structure for the portable solar cell array100without departing from the scope of this disclosure. For example, portions of the support structure104may be fabricated as a unibody structure. One or more selected members302,304may be solid for increased strength.

Any number of support members302,304may be used in the various embodiments. Some support members may have an angled orientation. Preferably, the support members are arranged in a fashion that encloses and protects the solar cell panels102when in the portable solar cell array100is in the closed configuration. Also, the support members302,304are arranged in a fashion that supports the solar cell panels102when the portable solar cell array100is in the open configuration.

As illustrated in the example embodiment ofFIG.3, the lower assembly110is slidably secured to the support structure104by the slider system118. The non-limiting example lower assembly110comprises a first lower assembly frame member306. In this example embodiment, the lower assembly frame member306is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panels102g-102iand their associated support members when the portable solar cell array100is in the closed or open configurations.

In this example embodiment, the slider system118comprises two sliders, each having a first lower assembly slider member118asecured to the first lower assembly frame member306and a second lower assembly slider member118bsecured to the support structure104. Here, the first lower assembly slider member118ais slidably engaged with the second lower assembly slider member118b. The lower assembly110is initially slid in a forward direction (relative to the support structure104) to an outwardly extended configuration from the support frame104using the cooperatively engaged first lower assembly slider members118a,118b.

FIG.4is a diagram of the portable solar cell array100after both of the upper assembly114and the lower assembly110have been slid outwardly to their extended positions. The upper assembly114is slidably secured to the support structure104by the slider system116. The non-limiting example upper assembly114comprises a first upper assembly frame member308. In this example embodiment, the upper assembly frame member308is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panels102a-102cand their associated support members when the portable solar cell array100is in the closed or open configurations.

In this example embodiment, the slider system116comprises two sliders, each having a first upper assembly slider member116asecured to the first upper assembly frame member308and a second upper assembly slider member116bsecured to the support structure104. Here, the first upper assembly slider member116ais slidably engaged with the second upper assembly slider member116b. The upper assembly110is initially slid in a backwards direction (relative to the support structure104) to an outwardly extended configuration from the support frame104using the cooperatively engaged first upper assembly slider member116aand the second upper assembly slider member116b.

In other embodiments, other suitable slider systems may be used so slide the lower assembly110into its forward extended position and to slide the upper assembly114into its backward extended position. For example, but not limited to, a telescoping arm may be used to slide the lower assembly110and the upper assembly114. Alternatively, more than two slider members may be slidably engaged to slide the lower assembly110and the upper assembly114.

After the lower assembly110and the upper assembly114have been slid to their extended positions, then the solar panels102d-102ecan be folded outwardly so that the solar cells on the three solar panels102d-102fare facing upwardly. Accordingly, the travel length provided by the slider system118must be long enough so that the rear end end of the lower assembly110extends outwardly beyond the forward end of the center assembly112. Similarly, the travel length provided by the slider system116must be long enough so that the forward end of the upper assembly114extends outwardly beyond the rear end of the center assembly112.

After the lower assembly110has been slid outwardly, the solar cell panel102gmay be rotated outwardly so that the solar cells of the solar cell panel102gare facing upward. Then, the solar cell panel solar cell panel102his rotated outwardly so that the solar cells of the solar cell panel102hare facing upward. After the solar cell panels102gand102hhave been rotated outwardly, the solar cell panel102ibecomes exposed (since it is upwardly oriented in the lower assembly110).

FIGS.4-8illustrate various stages of folding open the solar cell panels102. These figures illustrate in greater detail the various support members that facilitate opening the portable solar cell array100into the open configuration. For brevity, a brief description of each solar cell panel support member follows. Like reference numerals in the figures represent like or similar elements.

The solar cell panel support members of the lower assembly110include:(1) A first lower assembly frame member306. The first lower assembly frame member306is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panels102g-102iand their associated support members. The first lower assembly slider members118aare secured to the first lower assembly frame member306. Optionally, one or more ground support members (legs) secured to the first lower assembly frame member306may be used to stabilize the portable solar cell array100when in the open configuration.(2) A second lower assembly frame member308. The second lower assembly frame member308is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panel102gand its associated support members. A side of the second lower assembly frame member308is rotatably coupled to a corresponding side of the first lower assembly frame member306.(3) A third lower assembly frame member310. The third lower assembly frame member310is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panel102hand its associated support members. A side of the third lower assembly frame member310is rotatably coupled to a corresponding opposing side of the first lower assembly frame member306.(4) A first lower assembly solar cell panel frame member312. The first lower assembly solar cell panel frame member312is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102i. A front side or edge of the first lower assembly solar cell panel frame member312is rotatably coupled to the front side or edge of the first lower assembly frame member306.(5) A second lower assembly solar cell panel frame member314. The second lower assembly solar cell panel frame member314is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102g. A front side or edge of the second lower assembly solar cell panel frame member314is rotatably coupled to the front side or edge of the second lower assembly frame member308.(6) A third lower assembly solar cell panel frame member316. The third lower assembly solar cell panel frame member316is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102h. A front side or edge of the third lower assembly solar cell panel frame member316is rotatably coupled to the front side of the third lower assembly frame member310.(7) An optional first floor support member (leg)318. A proximal end of the first leg318is rotatably coupled to the second lower assembly frame member308and is configured to extend downwardly so that the distal end of the first leg318is supported by the ground when the portable solar cell array100is in the open configuration. When the portable solar cell array100is in the closed configuration, the first leg318rotatably folds within the second lower assembly frame member308. Other embodiments may employ a plurality of legs318.(8) An optional second floor support member (leg)320. A proximal end of the second leg320is rotatably coupled to the third lower assembly frame member310and is configured to extend downwardly so that the distal end of the second leg320is supported by the ground when the portable solar cell array100is in the open configuration. When the portable solar cell array100is in the closed configuration, the second leg320rotatably folds within the third lower assembly frame member310. Other embodiments may employ a plurality of legs320.(9) A first tilt support member322. In a preferred embodiment, a proximal end of the first tilt support member322is rotatably coupled to the rear side or edge of the first lower assembly solar cell panel frame member312. When the portable solar cell array100is in the open configuration, the rear edge of the first lower assembly solar cell panel frame member312is rotated upwardly (tilted) so that the solar panel102iis slanted upwardly to receive incident solar energy. The distal end of the first tilt support member322is then secured to proximate to the rear end of the first lower assembly frame member306to retain the solar panel102iin the tilted orientation. When the portable solar cell array100is in the closed configuration, the first tilt support member322folds within the first lower assembly solar cell panel frame member312. (In an alternative embodiment, the distal end of the first tilt support member322is rotatably coupled proximate to the rear end of the first lower assembly frame member306so that the proximal end of the first tilt support member322can be secured to the first lower assembly solar cell panel frame member312to retain the solar panel102iin the tilted orientation.) Other embodiments may employ a plurality of first tilt support members322.(10) A second tilt support member324. In a preferred embodiment, a proximal end of the second tilt support member324is rotatably coupled to the rear side or edge of the second lower assembly solar cell panel frame member314. When the portable solar cell array100is in the open configuration, the rear edge of the second lower assembly solar cell panel frame member314is rotated upwardly (tilted) so that the solar panel102gis slanted upwardly to receive incident solar energy. The distal end of the second tilt support member324is then secured to proximate to the rear end of the second lower assembly frame member308to retain the solar panel102gin the tilted orientation. When the portable solar cell array100is in the closed configuration, the second tilt support member324folds within the second lower assembly solar cell panel frame member314. (In an alternative embodiment, the distal end of the second tilt support member324is rotatably coupled proximate to the rear end of the second lower assembly frame member308so that the proximal end of the second tilt support member324can be secured to the second lower assembly solar cell panel frame member314to retain the solar panel102gin the tilted orientation.) Other embodiments may employ a plurality of first tilt support members324.(11) A third tilt support member326. In a preferred embodiment, a proximal end of the third tilt support member326is rotatably coupled to the rear side or edge of the third lower assembly solar cell panel frame member316. When the portable solar cell array100is in the open configuration, the rear edge of the third lower assembly solar cell panel frame member316is rotated upwardly (tilted) so that the solar panel102his slanted upwardly to receive incident solar energy. The distal end of the third tilt support member326is then secured to proximate to the rear end of the third lower assembly frame member310to retain the solar panel102hin the tilted orientation. When the portable solar cell array100is in the closed configuration, the third tilt support member326folds within the third lower assembly solar cell panel frame member316. (In an alternative embodiment, the distal end of the third tilt support member326is rotatably coupled proximate to the rear end of the third lower assembly frame member310so that the proximal end of the third tilt support member326can be secured to the third lower assembly solar cell panel frame member316to retain the solar panel102hin the tilted orientation.) Other embodiments may employ a plurality of first tilt support members326.

Tilt support members, in a preferred embodiment, are adjustable to permit the installer to tilt the solar panels102at a desired tilt angle between zero degrees and sixty degrees. In some embodiments, the tilt support member may be a telescoping support member that provides for an adjustable length that can be selected to define the tilt angle.

In other embodiments the tilt support member may be a rigid member of a predefined length with a plurality of apertures disposed along the length of the member. A support bracket or the like that is secured towards the rear of the respective lower assembly frame member is configured to receive and retain the tilt support member. The tilt angle may be selected by inserting a pin or other retainer through a selected aperture of the bracket and the tilt support member.

(12) A first plurality of rotational post support members328. A first one and a second one of the vertically oriented first plurality of rotational post support members328are secured to the first lower assembly frame member306on a side adjacent to the second lower assembly frame member308. A third one and a fourth one of the vertically oriented first plurality of rotational post support members328are secured to the first lower assembly frame member306on an opposing side adjacent to the third lower assembly frame member310. In the illustrated example embodiment, the first and third rotational post support members328are located proximate to the front end of the first lower assembly frame member306. The second and fourth rotational post support members328are located proximate to the rear end of the first lower assembly frame member306.

(13) The first and second rotational post support members328are defined by an aperture330that is configured to receive corresponding rotation pins332that are secured to the side of the second lower assembly frame member308. The third and fourth rotational post support members328are also defined by an aperture330that is configured to receive corresponding rotation pins332that are secured to the side of the third lower assembly frame member310. The rotation pins332, secured by the aperture330of the corresponding rotational post support member328, are engaged with the corresponding rotational post support member329to allow rotation of the second lower assembly solar cell panel frame member308and the third lower assembly frame member310between the closed and open configurations.

The solar cell panel support members of the center assembly112include:(1) A first center assembly frame member406. The first center assembly frame member406is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panels102d-102fand their associated support members. The first center assembly frame member408is coupled to the support structure104.(2) A second center assembly frame member408. The second center assembly frame member408is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panel102dand its associated support members. A side of the second center assembly frame member408is rotatably coupled to a corresponding side of the first center assembly frame member406.(3) A third center assembly frame member410. The third center assembly frame member410is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panel102eand its associated support members. A side of the third center assembly frame member410is rotatably coupled to a corresponding opposing side of the first center assembly frame member406.(4) A first center assembly solar cell panel frame member412. The first center assembly solar cell panel frame member412is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102f. A front side or edge of the first center assembly solar cell panel frame member412is rotatably coupled to the front side or edge of the first center assembly frame member406.(5) A second center assembly solar cell panel frame member414. The second center assembly solar cell panel frame member414is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102d. A front side or edge of the second center assembly solar cell panel frame member414is rotatably coupled to the front side or edge of the second center assembly frame member408.(6) A third center assembly solar cell panel frame member416. The third center assembly solar cell panel frame member416is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102e. A front side or edge of the third center assembly solar cell panel frame member412is rotatably coupled to the front side of the third center assembly frame member410.(7) An optional first frame support member (brace)418. A proximal end of the first brace418is rotatably coupled to the second center assembly frame member408and is configured to extend downwardly so that the distal end of the first brace418is supported by the first center assembly frame member406when the portable solar cell array100is in the open configuration. The brace418retains the solar panel102din its horizontal orientation. When the portable solar cell array100is in the closed configuration, the first brace418rotatably folds within the second center assembly frame member408. Other embodiments may employ a plurality of braces418. Alternatively, or additionally, a floor support member (leg) may be used to provide support for the solar cell panel102d.(8) An optional second frame support member (brace)420. A proximal end of the second brace420is rotatably coupled to the third center assembly frame member410and is configured to extend downwardly so that the distal end of the second brace420is supported by the first center assembly frame member406when the portable solar cell array100is in the open configuration. The brace420retains the solar panel102ein its horizontal orientation. When the portable solar cell array100is in the closed configuration, the second brace420rotatably folds within the third center assembly frame member410. Other embodiments may employ a plurality of braces420. Alternatively, or additionally, a floor support member (leg) may be used to provide support for the solar cell panel102e.(9) A first tilt support member422. In a preferred embodiment, a proximal end of the first tilt support member422is rotatably coupled to the rear side or edge of the first center assembly solar cell panel frame member412. When the portable solar cell array100is in the open configuration, the rear edge of the first center assembly solar cell panel frame member412is rotated upwardly (tilted) so that the solar panel102fis slanted upwardly to receive incident solar energy. The distal end of the first tilt support member422is then secured to proximate to the rear end of the first center assembly frame member406to retain the solar panel102fin the tilted orientation. When the portable solar cell array100is in the closed configuration, the first tilt support member422folds within the first center assembly solar cell panel frame member412. (In an alternative embodiment, the distal end of the first tilt support member422is rotatably coupled proximate to the rear end of the first center assembly frame member406so that the proximal end of the first tilt support member422can be secured to the first center assembly solar cell panel frame member412to retain the solar panel102fin the tilted orientation.) Other embodiments may employ a plurality of first tilt support members422.(10) A second tilt support member424. In a preferred embodiment, a proximal end of the second tilt support member424is rotatably coupled to the rear side or edge of the second center assembly solar cell panel frame member414. When the portable solar cell array100is in the open configuration, the rear edge of the second center assembly solar cell panel frame member414is rotated upwardly (tilted) so that the solar panel102dis slanted upwardly to receive incident solar energy. The distal end of the second tilt support member424is then secured to proximate to the rear end of the second center assembly frame member408to retain the solar panel102din the tilted orientation. When the portable solar cell array100is in the closed configuration, the second tilt support member424folds within the second center assembly solar cell panel frame member414. (In an alternative embodiment, the distal end of the second tilt support member424is rotatably coupled proximate to the rear end of the second center assembly frame member408so that the proximal end of the second tilt support member324can be secured to the second center assembly solar cell panel frame member414to retain the solar panel102din the tilted orientation.) Other embodiments may employ a plurality of first tilt support members424.(11) A third tilt support member426. In a preferred embodiment, a proximal end of the third tilt support member426is rotatably coupled to the rear side or edge of the third center assembly solar cell panel frame member416. When the portable solar cell array100is in the open configuration, the rear edge of the third center assembly solar cell panel frame member416is rotated upwardly (tilted) so that the solar panel102eis slanted upwardly to receive incident solar energy. The distal end of the third tilt support member426is then secured to proximate to the rear end of the third center assembly frame member410to retain the solar panel102ein the tilted orientation. When the portable solar cell array100is in the closed configuration, the third tilt support member426folds within the third center assembly solar cell panel frame member416. (In an alternative embodiment, the distal end of the third tilt support member426is rotatably coupled proximate to the rear end of the third center assembly frame member410so that the proximal end of the third tilt support member426can be secured to the third center assembly solar cell panel frame member416to retain the solar panel102ein the tilted orientation.) Other embodiments may employ a plurality of first tilt support members426.(12) A first plurality of rotational post support members328. A first one and a second one of the vertically oriented first plurality of rotational post support members328are coupled to the first center assembly frame member406on a side adjacent to the second center assembly frame member408. A third one and a fourth one of the vertically oriented first plurality of rotational post support members328are coupled to the first center assembly frame member406on an opposing side adjacent to the third center assembly frame member410. In the illustrated example embodiment, the first and third rotational post support members328are located proximate to the front end of the first center assembly frame member406. The second and fourth rotational post support members328are located proximate to the rear end of the first center assembly frame member406.(13) The first and second rotational post support members328are defined by an aperture330that is configured to receive corresponding rotation pins332that are secured to the side of the second lower assembly frame member408. The third and fourth rotational post support members328are also defined by an aperture330that is configured to receive corresponding rotation pins332that are secured to the side of the third lower assembly frame member410. The rotation pins332, secured by the aperture330of the corresponding rotational post support member328, allows rotation of the second lower assembly solar cell panel frame member408and the third lower assembly frame member410between the closed and open configurations.

The solar cell panel support members of the upper assembly114include:(1) A first upper assembly frame member506. The first upper assembly frame member506is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panels102a-102cand their associated support members. The first upper assembly slider members116aare secured to the first upper assembly frame member506. Optionally, one or more ground support members (legs) secured to the first upper assembly frame member506may be used to stabilize the portable solar cell array100when in the open configuration(2) A second upper assembly frame member508. The second upper assembly frame member508is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panel102aand its associated support members. A side of the second upper assembly frame member508is rotatably coupled to a corresponding side of the first upper assembly frame member506.(3) A third upper assembly frame member510. The third upper assembly frame member510is a horizontally oriented planar member that is rigid with sufficient strength to support the solar cell panel102band its associated support members. A side of the third upper assembly frame member510is rotatably coupled to a corresponding opposing side of the first upper assembly frame member506.(4) A first upper assembly solar cell panel frame member512. The first upper assembly solar cell panel frame member512is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102c. A front side or edge of the first upper assembly solar cell panel frame member512is rotatably coupled to the front side or edge of the first upper assembly frame member506.(5) A second upper assembly solar cell panel frame member514. The second upper assembly solar cell panel frame member514is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102a. A front side or edge of the second upper assembly solar cell panel frame member514is rotatably coupled to the front side or edge of the second upper assembly frame member508.(6) A third upper assembly solar cell panel frame member516. The third upper assembly solar cell panel frame member516is a rigid planar member that is secured to a bottom side (opposing the side that has the solar cells208) of the solar cell panel102b. A front side or edge of the third upper assembly solar cell panel frame member516is rotatably coupled to the front side of the third upper assembly frame member510.(7) An optional first frame support member (brace)518. A proximal end of the first brace518is rotatably coupled to the second upper assembly frame member508and is configured to extend downwardly so that the distal end of the first brace518is supported by the first upper assembly frame member506when the portable solar cell array100is in the open configuration. The brace518retains the solar panel102ain its horizontal orientation. When the portable solar cell array100is in the closed configuration, the first brace518rotatably folds within the second upper assembly frame member508. Other embodiments may employ a plurality of braces418. Alternatively, or additionally, a floor support member (leg) may be used to provide support for the solar cell panel102a.(8) An optional second frame support member (brace)520. A proximal end of the second brace520is rotatably coupled to the third upper assembly frame member510and is configured to extend downwardly so that the distal end of the second brace520is supported by the first upper assembly frame member506when the portable solar cell array100is in the open configuration. The brace520retains the solar panel102bin its horizontal orientation. When the portable solar cell array100is in the closed configuration, the second brace520rotatably folds within the third upper assembly frame member510. Other embodiments may employ a plurality of braces520. Alternatively, or additionally, a floor support member (leg) may be used to provide support for the solar cell panel102b.(9) A first tilt support member522. In a preferred embodiment, a proximal end of the first tilt support member522is rotatably coupled to the rear side or edge of the first upper assembly solar cell panel frame member512. When the portable solar cell array100is in the open configuration, the rear edge of the first upper assembly solar cell panel frame member512is rotated upwardly (tilted) so that the solar panel102cis slanted upwardly to receive incident solar energy. The distal end of the first tilt support member522is then secured to proximate to the rear end of the first center assembly frame member506to retain the solar panel102cin the tilted orientation. When the portable solar cell array100is in the closed configuration, the first tilt support member522folds within the first upper assembly solar cell panel frame member512. (In an alternative embodiment, the distal end of the first tilt support member522is rotatably coupled proximate to the rear end of the first upper assembly frame member506so that the proximal end of the first tilt support member522can be secured to the first upper assembly solar cell panel frame member512to retain the solar panel102cin the tilted orientation.) Other embodiments may employ a plurality of first tilt support members522.(10) A second tilt support member524. In a preferred embodiment, a proximal end of the second tilt support member524is rotatably coupled to the rear side or edge of the second upper assembly solar cell panel frame member514. When the portable solar cell array100is in the open configuration, the rear edge of the second upper assembly solar cell panel frame member514is rotated upwardly (tilted) so that the solar panel102ais slanted upwardly to receive incident solar energy. The distal end of the second tilt support member524is then secured to proximate to the rear end of the second upper assembly frame member508to retain the solar panel102ain the tilted orientation. When the portable solar cell array100is in the closed configuration, the second tilt support member524folds within the second upper assembly solar cell panel frame member514. (In an alternative embodiment, the distal end of the second tilt support member524is rotatably coupled proximate to the rear end of the second upper assembly frame member508so that the proximal end of the second tilt support member524can be secured to the second upper assembly solar cell panel frame member414to retain the solar panel102ain the tilted orientation.) Other embodiments may employ a plurality of first tilt support members524.(11) A third tilt support member526. In a preferred embodiment, a proximal end of the third tilt support member526is rotatably coupled to the rear side or edge of the third upper assembly solar cell panel frame member516. When the portable solar cell array100is in the open configuration, the rear edge of the third upper assembly solar cell panel frame member516is rotated upwardly (tilted) so that the solar panel102bis slanted upwardly to receive incident solar energy. The distal end of the third tilt support member526is then secured to proximate to the rear end of the third upper assembly frame member510to retain the solar panel102bin the tilted orientation. When the portable solar cell array100is in the closed configuration, the third tilt support member526folds within the third upper assembly solar cell panel frame member516. (In an alternative embodiment, the distal end of the third tilt support member526is rotatably coupled proximate to the rear end of the third upper assembly frame member510so that the proximal end of the third tilt support member326can be secured to the third upper assembly solar cell panel frame member516to retain the solar panel102bin the tilted orientation.) Other embodiments may employ a plurality of first tilt support members526.(12) A first plurality of rotational post support members328. A first one and a second one of the vertically oriented first plurality of rotational post support members328are coupled to the first upper assembly frame member506on a side adjacent to the second upper assembly frame member508. A third one and a fourth one of the vertically oriented first plurality of rotational post support members328are coupled to the first upper assembly frame member506on an opposing side adjacent to the third upper assembly frame member510. In the illustrated example embodiment, the first and third rotational post support members328are located proximate to the front end of the first upper assembly frame member506. The second and fourth rotational post support members328are located proximate to the rear end of the first upper assembly frame member506.(13) The first and second rotational post support members328are defined by an aperture330that is configured to receive corresponding rotation pins332that are secured to the side of the second upper assembly frame member508. The third and fourth rotational post support members328are also defined by an aperture330that is configured to receive corresponding rotation pins332that are secured to the side of the third upper assembly frame member510. The rotation pins332, secured by the aperture330of the corresponding rotational post support member328, allows rotation of the second upper assembly solar cell panel frame member508and the third upper assembly frame member510between the closed and open configurations.

FIG.5is a diagram of the portable solar cell array100with the solar cell panel102iin a folded out position. After the portable solar cell array100is positioned in a desired orientation, the lower assembly110is slid to its outward and fully extended position. The topmost solar panel102his then rotated outwardly (flipped) about the pins332so that the solar panel102his then horizontally oriented. The solar panels208are then facing upwardly. The leg320is rotated downwardly to its vertical orientation.

FIG.6is a close up view of the rotational post support members328and the aperture330that receives and engages with the pin332. In a preferred embodiment, the aperture330is a slot. The vertically oriented slot330and the engaged pin332allows rotation (conceptually illustrated by the rotation arrow602) of the solar panel102hfrom its initial folded position (when in the closed configuration) to an open position as the portable solar cell array100is being opened up into its open configuration. When the portable solar cell array100is closed, the aperture330and the pin332allow the solar panel102hto be rotated back over to lie on top of the solar panel102g(interchangeably referred to herein as a folded configuration). Here, in response to closing the portable solar cell array100into a closed configuration so that, for example, the third lower assembly frame member310is above the first lower assembly frame member306, the pins332are at an upper end of the slot330so that the third lower assembly frame member310is at a first elevation.

It is appreciated that elevation of the now horizontal solar panel102his above the elevation of adjacent solar panel102iafter the rotation602. Here, the pins332are at a an upper end of the vertically oriented slot330. The slot330then permits the pin332, and the solar panel102hand its support members, to be moved downwardly (conceptually illustrated by the downward arrow604) to become horizontally aligned with the solar panel102ialong the same elevation, or substantially the same elevation. For example, in response to opening the portable solar cell array100into the open configuration so that the third lower assembly frame member310is adjacent the first lower assembly frame member306, the pins332are at a lower end of the vertically oriented slot330so that the third lower assembly frame member310is at a second elevation that is lower than the first elevation.

The other rotational post support members328are similarly configured with slots330. After each of the solar cell panels102a,102b,102d,102e, and102fare rotated outwardly to their folded out positions, each of these solar panels may be lowered so as to become horizontally aligned with the solar panels102c,102f, and102i, respectively. When the portable solar cell array100is closed, the slots330and pins332cooperatively allow the solar panels to be raised for closing.

FIG.7is a diagram illustrating the solar cell panels102g-102iin their open configuration. Here, the solar cell panels102g-102iare aligned in the horizontal row206.

Additionally, the solar panel102dis illustrated in its folded out position. The brace418retains the solar panel102din its horizontal orientation.

InFIG.7, the solar panel102fhas not yet been folded over to its open position. The solar panel102fis laying over the solar panel102e. The above-described support members are now accessible to the installer so that the solar panel102fcan be outwardly rotated into its open position. The brace418retains the solar panel102din its horizontal orientation.

FIG.8is a diagram illustrating the solar cell panels102d-102iin their open configuration. Here, the solar cell panels102d-102fare aligned in the horizontal row204. The brace420retains the solar panel102ein its horizontal orientation.

FIG.9is a diagram illustrating the solar cell panels102a-102iin their open configuration. Here, the solar cell panels102a-102care aligned in the horizontal row202. The brace518retains the solar panel102ain its horizontal orientation. The brace520retains the solar panel102cin its horizontal orientation.

After the solar cell panels102a-102chave been rotated or folded open as illustrated inFIG.9, the solar cell panels102a-102aare horizontally oriented. Such a horizontal orientation is not necessarily optimal since the orientation of the solar cell panels102a-102i, when horizontal, may not be pointed towards the sun.

FIG.10is a diagram illustrating the solar cell panels102a-102crotated to their tilted position. Tilting allows adjustment of the orientation of a solar cell panel102to point towards the sun more directly. The installer tilts the solar panel102, and then uses the associated tilt support member to retain the solar panel in its tilted position. For example, the tilted solar panel102cis retained in the tilted position by the tilt support member526. In some embodiments, the tilt support members are telescoping tubular members that have an adjustable length. Any type of suitable tilt support member may be used in the various embodiments.

FIG.11is a diagram of the portable solar cell array100with all of the solar cell panels102a-102iopen and tilted.FIG.11corresponds to a different view of the portable solar cell array100in the open configuration that is illustrated inFIG.2.

The ordering of the solar cell panels102a-102imay vary in alternative embodiments. For example, but not limited to, the solar panel102ais illustrated as being on top of the solar panel102bwhen the portable solar cell array100is in the closed configuration. Here, during the opening process, the solar panel102ais first rotated outwardly to its open position. Then, the solar panel102bis rotated outwardly to its open position. In an alternative embodiment, the solar panel102bmay be configured to be on top of the solar panel102awhen the portable solar cell array100is in the closed configuration. Here, during the opening process, the solar panel102bis first rotated outwardly to its open position. Then, the solar panel102ais rotated outwardly to its open position.

Spacers, bumpers or the like (not shown) may be optionally used to avoid direct contact of the solar collecting surfaces of the solar cell panels102with the various support members and/or the other solar cell panels102. For example, a plurality of bumpers may be secured to the upper surface of the first lower assembly frame member306such that when the third lower assembly frame member310is folded over onto the top of the first lower assembly frame member306(closed configuration), the plurality of bumpers support the third lower assembly frame member310and maintain a designed spacing between the first lower assembly frame member306and the third lower assembly frame member310. Alternatively, or additionally, bumpers may be located on the upper surface of the third lower assembly frame member310third lower assembly frame member310. Similarly, a plurality of bumpers may be secured to the other frame members described herein. In some embodiments, a rubber or foam strip may be affixed to the frame members and/or the solar cell panels to prevent solar cell panel glass from resting on the frame or other solar panels.

The surface of the solar collecting surface of the solar cell panels102may have a protective coating, film, or cover that is transparent for protection against contact with the pivot arms and/or other solar cell panels102. Such a protective coating, film, or cover may protect the solar collecting surface of the solar cell panels102from the elements when the portable solar cell array100is in use.

FIG.12illustrates an alternative embodiment of a roller assembly1202. Here, the portable solar cell array100is illustrated in the closed configuration or a partially closed configuration. The roller assembly1202replaces the above-described rotational post support members328and pins332to provide rotation of the solar cell panels102into their position when in the closed configuration and the open configuration of the portable solar cell array100.

As shown inFIG.12, a second frame310(also referred to herein as third lower assembly frame member310) is rotatably coupled to a first frame306(also referred to herein as first lower assembly frame member306). With reference toFIG.12, first frame306includes a front end member381, a rear end member382, and a cross member383. As depicted inFIG.12, rear end member382is spaced from front end member381and cross member383extends from front end member381to rear end member382.

As further shown inFIG.12, second frame310includes a front member391and a rear member392. As depicted inFIG.12, front member391is proximate to front end member381and extends transversely relative to cross member383. The reader can further see inFIG.12that rear member392is proximate to rear end member382and also extends transversely relative to cross member383.

The roller assembly1202comprises a first post1204, a second post1206, a plurality of post receivers1208, and a roller bar1210. The apertures located proximate to the proximal upper end of the first post1204and the second post1206re included with diameters configured to slidably receive the roller bar1210. The roller bar1210is able to be freely rotated while being retained in position in the apertures of the posts1204,1206. Some embodiments may employ additional posts and post receivers1208.

A first post receiver1208is secured proximate to the front of the first lower assembly frame member306, and is configured to slidably receive and retain the first post1204. A second post receiver1208is secured proximate to the rear of the first lower assembly frame member306, and is configured to slidably receive and retain the second post1206.

The proximal end of the roller bar1210is secured to front member391of second frame310in the example embodiment illustrated inFIG.12. The distal end of the roller bar1210is secured to rear member392of second frame310. Here, welds rigidly secure the roller bar1210to second frame310. Other securing means may be used, such as screws, bolts, adhesive, brackets, or the like. During rotation of second frame310to either the closed or open position, the roller bar1210freely rotates (denoted by the directional arrow1212) about a rotational axis1214. In the illustrated embodiment, the side member of second frame310may be optionally omitted because of the structural strength provided by the roller bar1210to second frame310.

A plurality of retainers1216retain the roller bar1210to prevent sliding of the roller bar1210along the rotational axis1214. In the illustrated example embodiment, the retainers1216are washer-like rings secured to the roller bar1210. Accordingly, the front and rear ends of second frame310are held in alignment with the front and rear ends of first frame306. Retainers1216may be secured to the roller bar1210using a weld, one or more fasteners (screws or bolts), an adhesive, etc. In some embodiments, the retainers1216may be screws and/or bolts secured through the roller bar1210. Alternatively, or additionally, the retainers1216may be welded protrusions extending outwardly from the surface of the roller bar1210.

FIG.13is a diagram of the post receiver1208. The post receiver1208comprises a body member1302and a plurality of optional guide rollers1304rotatably secured within an interior1306of the body member1302. In the example embodiment ofFIGS.12and13, the first post1204and the second post1206are square tubular posts. The corners of the interior1306of the body member1302are configured to slidably retain the corners of the posts1204,1206while permitting the posts1204,1206to freely slide upwardly and downwardly when second frame310is rotated or folded into the opened or closed configurations.

The guide rollers1304are cylindrical member set back into the interior of the body member1302with their ends rotatably coupled to the body member1302. Here, the protruding edges of each guide roller1304engage a side of the square post1204,1206. As the post1204,1206slides upwardly or downwardly, the guide rollers1304rotate and maintain contact with the side surface of each post1204,1206, thereby retaining the posts1204,1206in a vertical orientation while reducing friction resistance to the sliding movement of the posts1204,206.

In the example embodiment illustrated inFIG.13, there are four upper guide rollers1304proximate to the upper end of the post receiver1208and four lower guide rollers1304proximate to the lower end of the post receiver1208. The upper and lower guide rollers1304cooperate to retain the posts1204,1206in their vertical orientation. In alternative embodiments, any number of guide rollers1304may be used without departing for the scope of the present invention.

Further, the interior1306of the body member1302may be configured to receive any shaped post1204,1206. For example, but not limited to, the posts1204,1206may be circular, hexagonal, octagonal, etc., in cross section. The interior1306of the body member1302may have any corresponding shape so as to retain the post1204,1206in their vertical orientation.

In an alternative embodiment, the guide rollers1304may be a ball bearing assembly or system to reduce frictional forces when the posts1204,1206are upwardly or downwardly sliding during opening and closing of second frame310. Alternatively, the guide rollers1304may be replaced by, or supplemented with, a suitable lubricant.

Returning toFIG.12, second frame310is illustrated when the portable solar cell array100is in its closed configuration such that second frame310is laying on top of first frame306, the third lower assembly frame member310, or both assemblies306,310(depending upon the configuration of the portable solar cell array100). The solar panels102a,102b,102d,102e,102fare similarly secured to their respective frame members306,308,310.

An optional bumper1218, interchangeably referred to herein as an elevation guide1218, is secured to the upper surface of the front of first frame306proximate to the side edge of first frame306. The bumper1218retains second frame310in its horizontal orientation and spaced apart from first frame306by a predefined distance. Preferably, an optional second bumper1218(not shown) is similarly secured to the upper surface of the rear of first frame306. Additionally, or alternatively, other bumpers1218may be secured to the upper surface of first frame306at other locations. When second frame310is in its closed position, the bumpers1218retain second frame310above first frame306at the predefined first distance.

Because the roller bar1210is rigidly secured to second frame310, the roller bar1210is at a corresponding second predefined distance (which may be the same as the first predefined distance) above the upper surface of each post receiver1208. In the various embodiments, the posts1204,1206have an upper portion having a length corresponding to the second predefined distance. The posts1204,1206have a lower portion having a length sufficiently long enough to extend the lower distal end of the post1204,1206through the body member1302of the post receiver1208when the portable solar cell array100is in the closed configuration. Accordingly, the post receiver1208securely and rigidly retains the post1204,1206is its vertical orientation when second frame310is in its closed position above first frame.

FIG.14illustrates the alternative embodiment of a roller assembly1202ofFIG.12when the portable solar cell array100is in the open configuration. When second frame310is rotated outwardly to its open position, the post1204,1206slides downwardly (denoted by the directional arrow1220shown inFIG.12) through the post receiver1208. During the initial stages of the opening process, the bumpers1218engage the lower surface of second frame310, acting as a lever system that begins to force the roller bar1210and the posts1204,1206downwardly.

During this opening process, the travel distance of the post1204,1206is less than or equal to the length of the upper portion of the post1204,1206. When second frame310is finally in its open position, the elevation of second frame310has decreased so that second frame310is now aligned with, or is substantially aligned with, the elevation of first frame306. That is, the posts1204,1206and the corresponding post receivers1208cooperatively allow the elevation of second frame310to change from a first predefined elevation above first frame306(when in the closed position) to a second predefined elevation corresponding to the elevation of first frame306(when in the open position).

In the various embodiments, the length of the lower portion of the posts1204,1206are not so long as to engage the surface of the earth where the portable solar cell array100is being opened. That is, the distal end of the posts1204,1206do not interfere with the downward travel of the upper portion of the post1204,1206when second frame310is rotated or folded into its open position.

Some embodiments may include an optional stop1222secured at a location on the upper portion of the post1204,1206proximate to and below the aperture that receives the roller bar1210. When second frame310has been rotated to its open position and the post1204,1206has travelled in its downward direction, the stop1222prevents further downward movement of the post1204,1206. The stop1222may also provide structural support to retain the post1204,1206and second frame310at its predefined lower elevation. In other embodiments, the roller bar1210may engage the upper surface of the post receiver1208to stop the further downward travel of the post1204,1206. Alternatively, or additionally, bumpers may be secured to second frame310to stop the further downward travel of the post1204,1206.

FIG.12illustrates an optional support leg1224wherein the proximal end is secured to the front of the first lower assembly frame member306. The support leg1224engages the surface of the earth to provide additional support to the portable solar cell array100when in the open configuration. In some embodiments, the distal end of the support leg1224may include a wheel or other suitable roller. The wheel or roller will facilitate the outward sliding movement of the first lower assembly frame member306to its extended position when the portable solar cell array100is opened.

An alternative embodiment may employ a rotational member that is secured to a side of second frame310and to the top proximal end of the posts1204,1206. The rotational member may be a hinge, pivot joint, ball joint or the like. In such embodiments, the roller bar1210and the post aperture are replaced with the rotational member that is coupled to the distal end of each post1204,1206.

The novel roller assembly1202may be used to rotatably couple other devices and/or systems together. For example, a table, lounge chair or the like may use the roller assembly1202to open and close. Embodiments or the roller assembly1202may be particularly advantageous when the height of one of the rotatably coupled members needs to be adjusted or controlled during the opening process.

The example embodiment illustrated inFIG.12may include one or more optional locking pin devices1226. When the pin is secured to the locking brackets, the locking pin device retains second frame310in its open position. A locking pin device1226may be advantageous when the portable solar cell array100is used in a location that may be subject to high velocity winds.

An example benefit of a portable solar cell array100, may be realized during a natural disaster or emergency situation. A plurality of closed portable solar cell arrays100may be transported to the disaster scene. Individual portable solar cell arrays100can be easily moved to location wither electric power is needed. In some embodiments, a plurality of portable solar cell arrays100may be electrically connected together to provide a desired amount (capacity) of electric power.

As another example in use, a closed portable solar cell array100may be stored for transportation in a vehicle, such as an automobile, truck or other recreational vehicle. The user may then use their portable solar cell array100to provide power, such as at a camp site or the like.

t should be emphasized that the above-described embodiments of the portable solar cell array100are merely possible examples of implementations of the invention. Many variations and modifications may be made to the above-described embodiments. All such modifications and variations are intended to be included herein within the scope of this disclosure and protected by any later filed claims.