JP4550527B2 - Foldable solar cell device and emergency power supply system - Google Patents

Description

  The present invention relates to a foldable solar cell device that includes a solar cell module that can generate electric power when irradiated with sunlight, and can be folded for convenience during transportation and space saving during storage.

  Conventionally, a foldable solar cell device that has a solar cell module that can generate electric power when irradiated with sunlight and can be folded to save convenience during transportation and storage has been conventionally used. For example, in Patent Document 1, a hollow box-like body having an openable / closable lid is foldable in a direction opposite to the side where the lid is attached, and is folded in a direction perpendicular to the side facing the side. Sometimes, a portable solar cell unit has been disclosed in which a plurality of solar cell panels that fit inside the box-like body are attached so as to be deployable in a direction parallel to the side facing the side.

  Patent Document 2 includes an outer box equipped with a refrigeration cycle, an inner box cooled by the refrigeration cycle, and a lid that covers the upper opening of the inner box, and is provided at one end of the lid. The panel-like solar cell that is pivotally supported is formed by two foldable panel portions, and the panel-like solar cell is provided by a support member provided on the lid on the engaging portion formed on the lower surface of the panel-like solar cell. There is disclosed a portable refrigerator using solar light that supports the above.

Japanese Patent Laid-Open No. 5-308147 Microfilm of Japanese Utility Model No. 61-120583 (Japanese Utility Model Publication No. 63-26074)

  However, in a foldable solar cell device such as the portable solar cell unit disclosed in Patent Document 1, a hollow box-like body is required to accommodate a folded solar cell panel. It does not function other than protecting the solar cell panel and maintaining the angle, and the significance of providing materials and labor is low, and the structure is complicated.

  Moreover, in a foldable solar cell device such as a solar-powered portable refrigerator disclosed in Patent Document 2, a lid or the like is required to provide a support member that holds the angle of the panel-shaped solar cell during deployment. This also necessitated structurally complicated things.

  The present invention has been made in view of the problems as described above, and is intended to provide a foldable solar cell device capable of simplifying the structure relating to the protection of the solar cell panel and the angle maintenance of the solar cell panel. .

In order to achieve the above object, the present invention is configured as follows. That is, the foldable solar cell device according to the present invention is configured such that the periphery of the solar cell module provided with solar cells is held by a frame provided by vertically and horizontally framed and left and right vertically framed in a rectangular frame. A solar cell device in which a battery array is formed and a hinge is attached between a plurality of the solar cell arrays so that the solar cell array can be folded and unfolded freely. The solar cell array holds an installation angle of the solar cell array. A supporting leg is attached, and the supporting leg is sandwiched and stored between the solar cell arrays when folded, and the solar cell array is opposed to the upper and lower horizontal frame members and the left and right vertical frame members, respectively. The upper and lower ends and left and right ends of the solar cell module are inserted into the provided mounting grooves, respectively, and the solar cell module is passed between the upper and lower horizontal frame members and between the left and right vertical frame members. And the supporting leg is attached to a frame member on one side constituting the rectangle by a hinge structure, and a stopper for maintaining the open state of the supporting leg is attached between the frame member and the supporting leg, and the frame on the one side A supporting leg mounting portion for attaching the supporting leg is integrally provided on the material , and the supporting leg is rotatably attached to the supporting leg mounting portion by a hinge structure, and the supporting leg mounting portion is at least the supporting leg from the rear end of the frame member. And a hinge structure having a thickness on the front side so that when the supporting leg is folded, the supporting leg is accommodated between the rear end of the frame member and the supporting leg mounting portion. It is.

  An emergency power supply system according to the present invention includes the foldable solar cell device according to claim 1, a power storage unit, and a charging unit, and the charging unit is generated by the foldable solar cell device. The electric power is stored in the power storage means, and power storage in the power storage means by an external power source is enabled.

  According to the foldable solar cell device according to the present invention, the solar cell module is protected by the frame body formed in the periphery, and the support legs are provided by sandwiching and storing the support legs between the solar cell arrays. In addition, no other members or the like are required, and the structure relating to the angle maintenance of the solar cell array can be simplified.

  Further, according to the emergency power system according to the present invention, since the charging means can store power in the power storage means by an external power source, power is stored in the power storage means from the external power source during storage. The emergency power supply system can be taken out of the storage location and immediately supplied with electric power, and a quick response in an emergency can be possible.

  BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.

  FIG. 1 is a front view showing an embodiment of a foldable solar cell device according to the present invention. The foldable solar cell device 100 is formed using a solar cell array in which a rectangular frame 2 is framed around a solar cell module 1 including solar cells 11, and the frame 2 includes an upper horizontal frame member 21 and The lower horizontal frame member 22 and the left and right vertical frame members 23 are formed. The upper horizontal frame member 21 of the frame body 2 is provided with a grip G for convenience of transportation during folding and a fastener F for maintaining the folded state, and the lower horizontal frame member 22 is rotated during deployment. A hinge 3 to be performed and a leg L that protects the lower end of the apparatus when placed vertically are provided. The solar battery cell 11 used for forming the solar battery module 1 is of a back contact type, and all the wirings other than connecting the columns are arranged on the back side of the solar battery cell 11.

FIG. 2 is a cross-sectional view in which the supporting legs and the like in the AA cross section of FIG. 1 are omitted. The foldable solar cell 100 has a hinge 3 attached between two solar cell arrays 10A and 10B stacked in the thickness direction, and can be unfolded in the direction of arrow Y1 and folded in the opposite direction. In the solar cell array 10, mounting grooves 211 and 221 that are integrally formed in the upper horizontal frame member 21 and the lower horizontal frame member 22 that are made of extruded aluminum and have the same cross-sectional shape are opposed to each other, and the solar cell module 1 The solar cell module 1 is inserted and attached between the upper horizontal frame member 21 and the lower horizontal frame member 22. The solar cell module 1 is formed by sealing a solar cell 11 with a sealing material 14 between a transparent glass material 12 and a back plate 13 made of PET resin. The glass material 12 and the back plate 13, sufficient strength as a plate body is ensured, so that the mounting strength of the solar cell module 1 can be sufficient only by fitting into the mounting grooves 211 and 221. Further, plate-like support leg mounting portions 41 and 42 are integrally provided on the upper horizontal frame member 21 and the lower horizontal frame member 22 so as to face each other. The support leg mounting portions 41 and 42 are provided on the front side from the rear ends 213 and 223 of the upper horizontal frame member 21 and the lower horizontal frame member 22, that is, on the solar cell module 1 side in each of the solar cell arrays 10A and 10B.

FIG. 3 is a cross-sectional view in which the supporting legs and the like of the BB cross section in FIG. 1 are omitted. The left and right vertical frame members 23 made of extruded aluminum are provided with mounting grooves 231 that are opposed to each other in the same manner as the upper horizontal frame material 21 and the lower horizontal frame material 22, and the left and right ends of the solar cell module 1 are the mounting grooves. 231 is inserted. The left and right vertical frame members 23 are further provided with screw holes 232, and the upper horizontal frame member 21, the lower horizontal frame member 22 and the left and right vertical frame members 23 are screwed using the screw holes 232 to frame the frame body 2. The The left and right vertical frame members 23 are hollow and have a semicircular cross section, the arc shape is arranged on the outside, and the knurl pattern is applied to the outer surface of the arc shape to enhance the aesthetic appearance. .

  FIG. 4 is a cross-sectional view showing a folded state of the support leg in the AA cross section in FIG. 1. The support legs 5 are formed on the upper horizontal frame member 21 of the solar cell array 10A so that the vertical length of the solar cell module 1 is substantially the same as the vertical length of the solar cell module 1 and the vertical frame member 22 has a vertical length. The support leg 5B, which is substantially half of the support leg 5A, is rotatably attached to the support leg attachment portions 41 and 42 by the hinge structure 6, respectively. The support leg mounting portion 41 is provided on the front side of at least the thickness of the support legs 5A or 5B and the hinge structure 6, so that the support legs 5A and 5B are sandwiched and stored between the solar cell arrays 10A and 10B when folded. be able to. Furthermore, the support attachment part 42 of the lower horizontal frame member 22 of the solar cell array 10A is provided with a temporary stop means 7 so as to suppress the rotation of the support leg 5A during deployment. On the back side of the electronic device E provided on the back side of the battery module 1, a temporary stopping means 7B is also provided for suppressing the rotation of the support leg 5B during deployment.

  FIG. 5 is a cross-sectional view showing the pivoting state of the support leg 5A. First, the fastener F is released and the solar cell array 10B is rotated by the hinge 3, so that the back side of the support leg 5A is opened as shown in FIG. A rail 82 having a sliding groove 83 attached to the left and right vertical frame member 23, a rotating shaft 84 slidably mounted in the sliding groove 83, and rotating shafts 84 and 85 are provided at both ends. The stopper 81 is attached between the frame body 2 and the support leg 5A by rotatably attaching the rotation shaft 85 to the support member 86 attached to the support leg 5A. In the vicinity of the upper end of the sliding groove 83, there is provided a recess 831 in which the rotating shaft 84 is fitted and the support leg 5A is maintained in an open state.

  When the support leg 5A is opened, the support leg 5A is rotated about the hinge structure 6 in the direction of the arrow Y2. At the time of the rotation, the support shaft 86 is rotated by the support member 86, and the inside of the sliding groove 83 is rotated. When the pivot shaft 84 is slid upward and fitted into the recess 831, the support leg 5 </ b> A is brought into an open state substantially perpendicular to the solar cell array 10 </ b> A. The support leg 5B is also opened in the same manner as the support leg 5A, and an open state that is substantially perpendicular to the solar cell array 10B is held by the stopper.

  The folding solar cell device 100 is not limited to the one in which the hinge 3 is attached between the two solar cell arrays 10A and 10B shown in the present embodiment, and three or more solar cell arrays are folded and expanded by the hinge. You may make it freely.

  FIG. 6 is an explanatory diagram showing an example of a power supply system formed using the folding solar cell device 100. The support legs 5A hold the inclined state of the solar cell arrays 10A and 10B with respect to the ground surface and define the installation angle, and the support legs 5B support the vicinity of the middle of the solar cell arrays 10A and 10B from below to firmly hold the inclined state. Is called. The electric power generated by irradiating solar cells 11 with sunlight is transmitted to the power supply device 200 by the cable C1, and a plurality of folding solar cell devices 100 are connected in parallel by the cable C1 as shown in the figure. A high current value can be obtained by taking the shape. The power supply apparatus 200 includes charging means such as a charger and power storage means (not shown) such as a storage battery, and further includes a DC / AC converter (not shown), so that a direct current generated by the solar battery cell 11 is generated. Can be operated by supplying electric power to home appliances such as the personal computer P and the mobile phone M shown in the figure. The combination of the foldable solar cell device 100 and the power supply device 200 can continuously supply the power of equipment necessary for response in the event of an emergency such as after a disaster has occurred. Moreover, it can lead to an appropriate response.

  Further, if the charging means of the power supply device 200 is connected to the external power source S by the cable C2 and can be stored in the power storage means at the time of storage, the power storage means will be discharged at the time of storage, and an emergency power supply in an emergency When the system is unloaded from the storage location, the situation in which power cannot be supplied does not occur, and the power can be used immediately, and a quick response in an emergency can be ensured. Such a charging unit is preferably a known emergency power supply unit in which a power storage unit used in a personal computer or the like is integrated, so that it is not necessary to separately provide a power storage unit.

It is a front view which shows one Embodiment of the foldable solar cell apparatus concerning this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is sectional drawing which shows the folding state of the foldable solar cell apparatus concerning this invention. It is sectional drawing which shows the open state of the support leg of the foldable solar cell apparatus concerning this invention. It is explanatory drawing which shows one Embodiment of the emergency power supply system concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solar cell module 11 Solar cell 2 Frame 21 Upper horizontal frame 22 Lower horizontal frame 23 Left and right vertical frame 3 Hinge 41, 42 Abutment attaching part 5A, 5B Abutment 6 Hinge structure 10A, 10B Solar cell array 100 Folding type Solar cell device 200 Power supply

Claims (2)

A solar cell array is formed by holding the periphery of a solar cell module including solar cells by a frame provided by vertically and horizontally framed and left and right vertical frame members in a rectangular frame, and a plurality of the solar cell arrays are formed. A hinge is attached to the solar cell device so that the solar cell device can be folded and unfolded freely, and a supporting leg for holding the installation angle of the solar cell array is attached to the solar cell array, and the solar cell is folded when the supporting leg is folded. The solar cell array is sandwiched between the arrays, and the solar cell array has upper and lower ends of the solar cell module in mounting grooves provided opposite to the upper and lower horizontal frame members and the left and right vertical frame members, respectively. And the left and right ends are respectively inserted, and the solar cell module is inserted and attached between the upper and lower horizontal frame members and between the left and right vertical frame members, and the supporting legs are attached to the frame member on one side constituting the rectangle. With attached by a hinge structure, support leg mounting portion stopper is attached to the further frame member of the one side of attaching the support legs to maintain the open state of the support leg between the frame member and the support legs are integrally provided, The support leg is pivotally attached to the support leg attachment part by a hinge structure, and the support leg attachment part is provided on the front side at least by the thickness of the support leg and the hinge structure from the rear end of the frame member. A folding solar cell device , wherein the support legs are accommodated between the rear end of the frame member and the support attachment parts when folded. The foldable solar cell device according to claim 1 , a power storage unit, and a charging unit, wherein the charging unit stores the electric power generated by the foldable solar cell device in the power storage unit and by an external power source. An emergency power supply system characterized in that power can be stored in the power storage means.

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