JP2011036082A - Solar charger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a solar charger from unexpected damage. <P>SOLUTION: The solar charger includes a solar module 70, having a substrate 71 having a surface on which a solar battery cell 72 is arranged, flexible transparent sheets 73 for covering both the surfaces of the substrate 71; a cushion sheet 75 in which the solar module 70 is fixed on the upper surface; and a sheet cover 11 forming a sheet housing space 78 used to house the cushion sheet 75 in the inside, according to the outer shape of the cushion sheet 75 and forming an opening window 79 so opened as to communicate with the sheet housing space 78. In the solar charger, the cushion sheet 75 is housed in the sheet housing space 78 of the sheet cover 11, thereby positioning and fixing the solar battery on the cushion sheet 75, so that the solar battery cell 72 is exposed on the surface of the sheet cover 11 via the opening window 79. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a solar charger that charges a built-in battery of a portable device such as a mobile phone or a mobile device with a solar cell.

  A solar charger for charging a battery with a solar battery has been developed (see Patent Document 1). For example, as shown in FIGS. 20 and 21, a solar charger described in Patent Document 1 has a solar cell 104 fixed to a bottom surface 102 of a quadrangular pyramid-shaped case 101 and a spare battery 105 provided therein. Yes. Furthermore, the external battery 106 to be charged is detachably stored. In this solar charger, the solar battery 104 on the bottom surface 102 is disposed so as to face the sun, and the external battery 106 and the spare battery 105 are charged by the solar battery 104.

JP 2008-104249 A

  In such a solar charger, a large number of solar cells are arranged on a substrate as solar cells. For example, a silicon crystal solar cell, an amorphous silicon solar cell, or a heterojunction (HIT) of single crystal silicon and amorphous silicon is used. However, such a solar battery cell may be damaged when subjected to an impact from the outside. For this reason, if the solar charger is accidentally dropped or brought into contact with a foreign object, there is a problem that the solar cell is damaged by the impact and the output is reduced.

  The present invention has been made to solve such conventional problems. A main object of the present invention is to provide a solar charger that can effectively prevent unexpected breakage.

Means for Solving the Problems and Effects of the Invention

  In order to achieve the above object, according to the solar charger according to the first aspect of the present invention, a substrate having solar cells disposed on the surface thereof, and a light-transmitting light having flexibility covering both surfaces of the substrate A solar module provided with a conductive sheet, a cushion sheet with the solar module fixed on the upper surface, and a sheet storage space for storing the cushion sheet therein according to the outer shape of the cushion sheet, A solar battery charger comprising: a seat cover that forms an opening window that communicates with the seat storage space; and the cushion cover is stored in the seat storage space of the seat cover so that the surface of the seat cover The solar battery is positioned on the cushion sheet so that the solar battery cell can receive light through the opening window. It can be fixed. Thereby, the photovoltaic cell accommodated in the solar charger can be protected by the cushion sheet, and the situation where the photovoltaic cell is damaged by an impact can be avoided. Furthermore, by positioning and fixing the solar module on the cushion sheet, the solar cell can be exposed from the opening window in a state where the cushion sheet is set on the seat cover, and the positioning work of the solar cell is simplified. Certainty can be increased.

  Moreover, according to the solar charger which concerns on a 2nd side surface, the said solar module is further provided with the translucent protective sheet which further coat | covers the said translucent sheet | seat of the upper and lower surfaces, The said translucent sheet | seat is It is made of a thermoplastic resin, and the side surfaces of the solar module can be bonded to each other with the translucent sheets. As a result, the solar module is sandwiched between the protective sheets, and the thermoplastic resin translucent sheets are heated and joined to each other between the protective sheets, and the thermoplastic resin is not exposed on the surface of the solar module. Can be protected on the surface.

  Furthermore, according to the solar charger which concerns on a 3rd side surface, the said cushion sheet can be comprised with a foamable resin sheet. Thereby, the protection effect of the photovoltaic cell surface can be improved.

  Furthermore, according to the solar charger which concerns on a 4th side surface, the said translucent sheet | seat can be comprised with ethylene vinyl acetate resin. Thereby, the surface of a photovoltaic cell can be reliably protected by rubber-like translucent resin.

  Furthermore, according to the solar charger according to the fifth aspect, the seat cover is sewn by sewing the edge, and at least a part of the cushion seat can be sewn to the seat cover. As a result, when the seat cover is stitched, a part of the cushion sheet can be stitched, and the cushion sheet can be reliably fixed to the seat cover in a positioned state.

  Furthermore, according to the solar charger according to the sixth aspect, an output cable for taking out the electric power generated by the solar battery cell drawn out from the solar module, and the seat storage space, A loop-shaped first tag that is fixed to one side surface and passes the output cable is provided, and the seat cover further includes the output cable on a side surface opposite to the side including the first tag. A cable lead-out portion for pulling out can be provided. As a result, the output cable is pulled out from the solar module once through the first tag to the opposite side, and the pulling force of the output cable does not act directly on the solar module, but is distributed to the first tag, so unexpected output It is possible to prevent damage to the solar charger by increasing the resistance against cable pull.

  Furthermore, according to the solar charger according to the seventh aspect, a loop through which the output cable is passed, which is further fixed inside the seat storage space on the side surface opposite to the side on which the first tag is provided. The output cable is capable of binding the output cable through the second tag with a binding band together with the second tag. As a result, in addition to the first tag, the pulling force is also received by the second tag that is bundled with the output cable in the cable tie. Therefore, the force against the pulling force of the output cable is surely distributed to the two tags. The solar module and the output cable can be reliably protected.

It is a perspective view which shows the state which open | released the fastener of the solar charger which concerns on Example 1. FIG. It is a perspective view which shows the example which connects an emergency charger and a mobile telephone to the solar charger of FIG. It is an external appearance perspective view which shows the state which closed the fastener of the solar charger of FIG. FIG. 4 is a rear perspective view of the solar charger shown in FIG. 3. It is sectional drawing which shows an example of the use condition of the solar charger shown in FIG. 6 is a perspective view of a solar charger according to Embodiment 2. FIG. FIG. 7 is a rear perspective view of the solar charger shown in FIG. 6. It is a perspective view which shows the state which folds the seat cover of the solar charger shown in FIG. It is a perspective view which shows an example of the use condition of the solar charger shown in FIG. 6 is a rear perspective view of a solar charger according to Embodiment 3. FIG. It is a perspective view which shows an example of the use condition of the solar charger shown in FIG. It is a perspective view which shows an example of an emergency charger. It is the disassembled perspective view which looked at the emergency charger shown in FIG. 12 from the back side. It is sectional drawing of a solar module. FIG. 15A is an exploded perspective view showing a state in which the cushion sheet is fixed to the lower surface of the solar module, and FIG. 15B is a cross-sectional view showing a state in which the cushion sheet is housed in the seat housing space. It is a perspective view which shows the state which removed the cover sheet | seat from FIG. 4 and pulled out the output cable. It is a schematic diagram which shows the procedure which lets an output cable pass to each tag in the state which expand | deployed the solar module from the cover sheet. It is an enlarged view which shows a 2nd tag and a cable outlet. It is a schematic diagram which shows the state which bound the output cable and the 2nd tag with the binding band. 1 is a perspective view of a solar charger previously filed by the present applicant. It is sectional drawing of the solar charger shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below exemplifies a solar charger for embodying the technical idea of the present invention, and the present invention does not specify the solar charger as follows. In addition, the member shown by the claim is not what specifies the member of embodiment. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the constituent members described in the embodiments are not intended to limit the scope of the present invention only to the description unless otherwise specified. It's just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and symbol indicate the same or the same members, and detailed description thereof will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing. In addition, the contents described in some examples and embodiments may be used in other examples and embodiments.

  1 to 5 show the solar charger 100 according to the first embodiment, FIGS. 6 to 9 show the solar charger 200 according to the second embodiment, and FIGS. 10 to 11 show the solar charger 300 according to the third embodiment. , Respectively. In these drawings, FIG. 1 is a perspective view showing a state in which the fastener of the solar charger according to the first embodiment is opened, and FIG. 2 is a perspective view showing an example in which an emergency charger and a mobile phone are connected to the solar charger of FIG. FIG. 3 is an external perspective view in which the fastener of the solar charger is closed, FIG. 4 is a rear perspective view of the solar charger in FIG. 3, and FIG. 5 is a cross-sectional view showing an example of the usage state of the solar charger in FIG. 6 is a perspective view of the solar charger according to the second embodiment, FIG. 7 is a rear perspective view of the solar charger of FIG. 6, and FIG. 8 is a perspective view of a state in which the seat cover of the solar charger of FIG. 9 is a perspective view showing the usage state of the solar charger of FIG. 6, FIG. 10 is a rear perspective view of the solar charger according to Example 3, and FIG. 11 is a perspective view showing the usage state of the solar charger of FIG. Each is shown. The solar charger shown in these drawings includes power generation sheets 10 and 30 that are fixed so that the solar modules 70 are exposed on the surfaces of seat covers 11 and 31 made of flexible sheets. The power generation sheets 10, 30 are provided with a storage pocket 13 that can store the rechargeable electric device 40 on the back surface of the seat covers 11, 31, and the rechargeable electric device 40 is stored in the storage pocket 13. The rechargeable battery 41 built in the rechargeable electric device 40 is charged with the power generated by the 30 solar modules 70.

  Note that the solar charger 100 according to the first embodiment fixes one solar module 70 on the surface of the seat cover 11, and the solar charger 200 according to the second embodiment includes two solar modules on the surface of the seat cover 31. 70 is fixed.

Further, in this specification, the rechargeable electric device is an electric device having a built-in secondary battery that is charged with the generated power of the solar cell, and is an emergency charger that charges, for example, an externally connected portable device. Or, it can be a mobile device such as a mobile phone or an IC player. In particular, as shown in FIG. 2, the solar charger 100 is connected to the emergency charger 40B via the output cable 20, and the portable device 60B is further connected to the emergency charger 40B via the dedicated cable 63. It is possible to charge the portable device 60B from the emergency charger 40B after storing and charging power from the charger 100 to the emergency charger 40B. The portable device 60B can be charged after being stabilized by interposing the charger 40B. In addition, such a charging method including the emergency charger 40B is a method in which after the emergency charger 40B is once charged by the solar charger 100, the emergency charger 40B is discharged and switched to the charging of the portable device 60B. In addition, charging from the solar charger to the emergency charger and charging from the emergency charger to the portable device can be performed simultaneously or in a time-sharing manner. In the present specification, the emergency charger means a charger that has a built-in rechargeable battery and can charge a portable device in an emergency without a commercial power source, and does not mean a so-called rapid charging function.
(Solar module 70)

  The power generation sheets 10 and 30 can increase the generated power by increasing the area of the solar module 70. The solar module 70 is a quadrangle whose side is 10 cm to 20 cm, for example. The generated power of the solar module 70 in a state where it is irradiated with solar rays can be, for example, about 1 W as a 10 cm square, about 2 W as a 15 cm square, and about 4 W as a 20 cm square. Furthermore, the solar module 70 is connected to the output cable 20 for taking out the generated power generated by the solar battery cell 72 to the outside. The output cable 20 is connected to an output connector 21 having an existing shape capable of supplying power (for example, a mini B plug or A plug of a USB cable) or a dedicated plug.

  A cross-sectional view of the solar module 70 is shown in FIG. 14 (the output cable is not shown). The solar module 70 shown in this figure includes a substrate 71 having solar cells 72 disposed on the surface, a translucent sheet 73 covering both surfaces of the substrate 71, and the solar module 70 from above the translucent sheet 73. A translucent protective sheet 74 covering the upper and lower surfaces is provided. As the substrate 71, a glass epoxy substrate or the like can be used, and a large number of solar cells 72 are regularly mounted with a flat upper surface. The solar battery cell 72 can use a silicon crystal solar battery, an amorphous silicon solar battery, or a heterojunction of single crystal silicon and amorphous silicon (HIT: Heterojunction with Intrinsic Thin Layer). In particular, HIT is preferable because of its low directivity when receiving sunlight, high conversion efficiency and excellent temperature characteristics, and high power generation per installation area. Moreover, it is preferable that the color of the foundation | substrate which mounts the photovoltaic cell 72 on the board | substrate 71 is a bright color, such as white type | system | group. Thereby, sunlight can be reflected or diffusely reflected around the solar battery cell 72, so that more sunlight can be received and power generation efficiency can be improved. On the other hand, a dark color such as black is not preferable because it easily absorbs sunlight and generates more heat.

  The entire upper and lower surfaces of the substrate 71 are covered with a translucent sheet 73, respectively. By constituting the translucent sheet 73 with a thermoplastic resin, it can be heat-sealed so as to cover the entire solar battery cell 72, and the entire solar battery cell 72 can be covered without a gap. Moreover, the edge is heat-sealed between the translucent sheets 73 and sealed. In this way, by heat-sealing the two light-transmitting sheets 73 made of thermoplastic resin, the end of the solar module 70 can be reliably waterproofed. That is, in the configuration in which only one side is covered with the translucent sheet 73, the end face is not sufficiently protected, and there is a possibility that the solar battery cells may be corroded by being immersed from the gap. By thermally welding using the conductive sheet 73, it is possible to reliably join without gaps and improve the reliability of the solar battery cells. The translucent sheet 73 is a flexible resin sheet, and is provided with flexibility or rubber-like elasticity to absorb external impact force and protect the surface of the solar battery cell 72. Preferably, it comprises ethylene vinyl acetate resin (EVA).

  Further, the translucent sheets 73 on the upper and lower surfaces are each covered with a protective sheet 74. The protective sheet 74 is preferably made of a translucent resin such as PET. Thereby, when the translucent sheets 73 are heat-sealed to each other, it is possible to protect the thermoplastic resin from being exposed on the surface of the solar module 70 and to avoid inadvertent adhesion.

The sandwich structure in which the both sides of the substrate 71 are covered with the translucent sheet 73 and the protective sheet 74 can completely cover the surface of the solar battery cell 72 and protect it from corrosion caused by water immersion, and the translucent sheet 73. Due to the flexibility, the impact force from the outside can be reduced and the protection from the external force can be realized.
(Cushion sheet 75)

  In order to further improve the impact resistance, a cushion sheet 75 is fixed to the lower surface of the solar module 70. This state is shown in the exploded perspective view of FIG. 15A and the cross-sectional view of the state stored in the sheet storage space 78 of FIG. In the solar charger 100 shown in this figure, the lower surface of the solar module 70 is fixed to the upper surface of the cushion sheet 75. Here, the double-sided tape 76 is used for fixing, but it goes without saying that other fixing methods such as hook-and-loop fasteners, adhesives, adhesives and sewing can also be used. The cushion sheet 75 can be formed of a foamable resin sheet or the like. Preferably, foamed polyethylene such as bell pollen having excellent processability and cushioning properties can be used.

  In a state where the solar module 70 is fixed on the cushion sheet 75, the solar module 70 is stored and fixed in the sheet storage space 78 inside the seat cover 11. The storage of the cushion sheet 75 in the seat storage space 78 is preferably performed when the seat cover 11 is sewn. That is, the seat cover 11 is sewn in a state where the cushion sheet 75 is inserted between the seat covers 11 and fixed with the double-faced tape 77 or the like. Sewing is performed around the seat cover 11 so as to be along the outer periphery of the cushion seat 75, so that a sheet storage space 78 corresponding to the outer shape of the cushion seat 75 is formed simultaneously with the sewing. Alternatively, the cushion sheet can be sewn and fixed together with the cushion sheet sandwiched between the seat covers. In this case, it is not necessary to sew the entire circumference of the cushion sheet, and only a part, for example, only two sides in an L shape can be sewn and fixed. Needless to say, the fixing of the edge of the cushion sheet is not limited to sewing, and adhesives and heat welding can also be used. Further, in order to insert the cushion sheet 75 to which the solar module 70 is fixed, the other side that is the outer periphery is sewn without sewing the upper and lower seat covers 11 (for example, one side or two adjacent sides). The cushion sheet 75 can be inserted from a portion that has been sewn and then not sewn, and then this portion can be sewn.

  As shown in FIGS. 3 and 15, the seat cover 11 has an opening window 79 for exposing the solar module 70 on one side. The opening window 79 communicates with the sheet storage space 78 and is opened to the outside. Further, the opening window 79 is blocked by the translucent member 80, and the solar module 70 receives and receives sunlight while protecting the solar module 70 from being exposed to the outside of the solar charger 100. Irradiation is possible. For the translucent member 80, a translucent resin material having excellent heat resistance, such as polyethylene terephthalate, can be suitably used.

  Here, it is necessary to position the solar module 70 in the sheet storage space 78 so that the solar battery cell 72 is surely positioned inside the opening window 79. That is, if the peripheral portion of the solar battery cell does not appear from the opening window 79, power generation cannot be obtained in this portion, so that the utilization efficiency is lowered. If the opening window is opened larger than the solar battery cell for easy positioning, the area covered by the seat cover becomes relatively small around the opening window. As a result, the protective effect and the holding effect by the seat cover are weakened, and the protective action against external force against the solar module is weakened. Therefore, it is desirable that the size of the opening window is substantially equal to the size of the solar battery cell, but in this case, it is necessary to accurately position the solar module. However, in consideration of manufacturing tolerances, margins for sewing, etc., the margin of the sheet storage space 78 for storing the solar module must be formed large. The larger the margin, the greater the possibility of displacement. In addition, it is difficult to mount solar cells on the entire top surface of the solar module, and there are blank areas around the solar module where the solar cells are not mounted. Therefore, it is necessary to cover the blank portion and hold the solar cell in a posture and position where all the solar cells are exposed from the opening window.

  Therefore, in the present embodiment, as described above, the solar module 70 on which the solar battery cell 72 is mounted is not directly positioned, but the solar module 70 is fixed to the cushion sheet 75 and then the cushion sheet 75 is reliably positioned to It is fixed to the cover 11. Since the cushion sheet 75 can be formed in substantially the same size as the seat cover 11, it is not necessary to provide a large margin area, and the larger the position, the easier the positioning operation becomes. In particular, when the seat cover 11 is sewn, by sewing along the outer periphery of the cushion seat 75, sewing according to the arrangement of the seat cover 11 is performed, and as a result, positioning for each individual is realized. Alternatively, by sewing the cushion sheet itself together with the seat cover, the size of the cushion sheet can be made equal to that of the seat cover, and positioning can be facilitated. As for the part to be sewn, for example, two continuous sides around the seat cover are sewn in an L shape. In this way, the solar module 70 is not directly positioned, but is positioned via the cushion sheet 75, so that accurate positioning can be realized easily and reliably.

  Further, the cushion sheet 75 can be provided with heat insulation. In particular, as shown in FIGS. 5, 9, and 11, in the configuration in which the storage pocket 13 is provided on the back surface of the solar charger, a mode in which the rechargeable electric device 40 is stored and charged can be used. In this case, on the structure which irradiates sunlight to the photovoltaic cell 72 of the surface, the rechargeable electric apparatus 40 located on the back surface is also heated by sunlight and the temperature rises. At this time, by providing the cushion sheet 75 provided on the bottom surface of the solar module 70 with a heat insulating effect, heating to the rechargeable electric device 40 can be reduced, and the rechargeable electric device 40 can be protected. A secondary effect is also obtained. For such a cushion sheet 75, foamed polyethylene such as the above-described bell pollen can be suitably used. In the example of FIGS. 15A and 15B, the cushion sheet 75 to which the solar module 70 is fixed is sandwiched between the two cover sheets 11. In addition, the lower cushion sheet 11 further integrates another cushion sheet 75B on the inner surface side (upper side in the drawing) to further improve impact resistance and heat insulation.

  As described above, the outer shape of the seat covers 11, 31 is larger than the outer shape of the solar module 70, and the opening window 79 for exposing the solar module 70 is opened, and the seat cover 11 in the covering region provided around the opening window 79, 31 protects the periphery of the solar module 70. As a material constituting the seat covers 11 and 31, a flexible sheet such as a fabric such as a canvas, a non-woven fabric, a soft plastic sheet, and a foamed resin sheet such as foamed polyethylene can be used alone or in combination. Here, the seat cover 11 also has bell polen added to the back fabric. The seat covers 11 and 31 are sewed at the periphery, and the reinforcing wire 17 is inserted. For the reinforcing wire 17, a hard plastic pipe having an outer diameter of 1 mmφ to 2 mmφ that can be elastically deformed is used. In order to insert the reinforcing wire 17 along the outer periphery, the corner portions of the seat covers 11 and 31 are curved with a predetermined radius of curvature, for example, 5 mm to 2 cm.

  3 has one solar module 70 fixed on the surface of the seat cover 11, and the power generation sheet 30 in FIG. 6 has two solar modules 70 fixed on the surface of the seat cover 31. As shown in FIG. 8, the seat cover 31 fixing the two solar modules 70 has a structure that can be folded in the middle of the two solar modules 70 and folded into two layers. The power generation sheet 30 is obtained by folding the sheet cover 31 in the middle to form two sheets, and storing the two solar modules 70 inside the folded sheet cover 11. The seat cover 31 shown in FIGS. 6 and 8 is provided with a detachable connector 18 that detachably connects the seat covers 31 that are folded and stacked on each other. The power generating sheet 30 is configured such that the surfaces of the folded sheet cover 31 that are stacked on each other are connected by the detachable connector 18 so that the power generating sheet 30 can be held in a stacked state. The detachable connecting tool 18 shown in the figure is a detachable hook. In FIG. 6, a pair of connecting pieces are provided at the upper and lower ends of the seat cover 31 and facing each other in the folded state. However, a hook-and-loop fastener, a magnet, etc. can be used for a detachable connector. When using magnets for the attachment / detachment connector, install a pair of magnets at opposing positions inside the seat cover, and improve the design by improving the appearance as a structure that does not appear on the outer surface of the seat cover. Can do. Further, although not shown, the power generation sheet can accommodate two solar cells inside by connecting the peripheral edges of the sheet cover folded in two layers with a fastener. As described above, the power generation sheet 30 that houses the solar module 70 inside the folded seat cover 31 can be conveniently carried in a compact size as a whole while protecting the solar module 70.

  The power generation sheets 10 and 30 are provided with a suspension hole 25 at the upper end so that the power generation sheets 10 and 30 can be easily set on the window glass. The power generation sheets 10 and 30 of FIGS. 3 to 11 are provided with a suspension hole 25 at the upper end of the seat covers 11 and 31. These power generation sheets 10 and 30 can be easily set inside the window glass 50 by hooking the suspension holes 25 on the hooks 52 as shown in FIGS. 5, 9, and 11. The hook 52 is fixed to the window glass 50 and the window frame 51, or is provided at the lower end of a hanging string 53 suspended from the window frame 51. The power generation sheets 10 and 30 can be hung on the hook 52 and set inside the window glass 50. Further, the power generation sheet 10 can be easily set on the indoor side of the window glass 50 with the suction cup 26 by fixing the suction cup 26 to the surface of the seat cover 11 as indicated by a chain line in FIG. 3. In particular, the plurality of suction cups 26 can be fixed to the surface of the seat cover 11 and can be reliably set so as not to fluctuate inside the window glass 50. Furthermore, the power generation sheet set so as not to move to a specific window glass can be reliably set by providing an adhesive layer on the surface of the sheet cover and attaching the adhesive layer to the inner surface of the window glass 50. This power generation sheet can also be securely fixed to the window glass by providing adhesive layers at a plurality of locations on the surface of the seat cover.

  The power generation sheets 10 and 30 are provided with a storage pocket 13 for storing the rechargeable electric device 40 on the surface opposite to the surface on which the solar module 70 is provided, that is, the back surface of the seat covers 11 and 31 so that the rechargeable electric device 40 can be attached and detached. The power generation sheets 10 and 30 shown in the drawing are provided with a storage pocket 13 by connecting a back sheet 14 to the back surfaces of the seat covers 11 and 31. The storage pocket 13 serves as a storage space for the rechargeable electric device 40 between the seat covers 11 and 31 and the back sheet 14. The storage pocket 13 fixes the fastener 15 along the periphery of the back sheet 14 so that the opening edge can be opened and closed as shown in FIG. The power generation sheets 10 and 30 can be stored in the storage pocket 13 so that the rechargeable electric device 40 does not go outside. However, the opening of the storage pocket 13 does not necessarily need to be closed. This is because the storage pocket 13 can be stored in the storage pocket 13 so that the opening portion of the storage pocket 13 is set upward and the rechargeable electric device 40 does not exit after being set on the window glass 50.

  The power generation sheet 10 of FIGS. 3 and 4 is provided with a storage pocket 13 in the entire seat cover 11. Further, the power generation sheet 30 of FIGS. 6 to 11 is provided with the storage pocket 13 in the half of the seat cover 31. In this power generation sheet 30, the size of the storage pocket 13 is the same as the size of the seat cover 31 folded in two. These power generation sheets 10 and 30 can easily store and retract the rechargeable electric device 40 by enlarging the storage pocket 13. However, the width of the storage pocket can be made narrower than the lateral width of the seat cover, or the vertical width thereof is made smaller than the seat cover in FIG. 4, and in FIGS. It can be smaller than half of the seat cover or larger than half. However, since the storage pocket 13 stores the rechargeable electric device 40 and charges it with the solar module 70, the storage pocket 13 is at least large enough to store the rechargeable electric device 40.

  The storage pocket 13 shown in the figure is provided with a peripheral wall 16 along the periphery of the back sheet 14 and also provided with a peripheral wall 16 on the periphery or back surface of the seat covers 11 and 31 facing the periphery of the back sheet 14. 16 are connected by a fastener 15. The storage pocket 13 having this structure is characterized in that a gusset is provided on the outer peripheral portion, which is a connecting portion between the seat covers 11 and 31, and the back sheet 14, and the rechargeable electric device 40 can be stored without difficulty. The peripheral wall 16 protrudes in a direction approaching each other with the storage pocket 13 being closed. The width of the peripheral wall 16 connected by the fastener 15 specifies the thickness of the storage pocket 13. The width | variety of the surrounding wall 16 connected with the fastener 15 shall be 1 cm-2 cm, and the rechargeable electric equipment 40 can be accommodated inside easily.

  The storage pocket 13 has a light transmissive structure. As shown in FIGS. 5, 9, and 11, the solar charger having the storage pocket 13 having a light-transmitting structure is set in the window glass 50, and the rechargeable electric device 40 stored in the storage pocket 13. Is visible from the outside. The storage pocket 13 shown in FIGS. 4, 5, 7, and 9 is configured to transmit light as a mesh structure. In the storage pocket 13 in these drawings, the back sheet 14 is a mesh sheet 14A in order to have a mesh structure. The storage pocket 13 having the back sheet 14 as a mesh-like sheet 14A has a feature that air permeability is improved and a temperature rise of the rechargeable electric device 40 stored therein can be reduced. A mesh-like sheet can improve the air permeability by enlarging the mesh. The mesh-like sheet 14 </ b> A excellent in air permeability can cool the rechargeable electric device 40 stored in the storage pocket 13 more efficiently. However, when the mesh-like sheet is enlarged, the strength, particularly the tensile strength and tear strength, is lowered. Therefore, the mesh size of the mesh sheet is preferably 1 mm to 10 mm, preferably 1 mm to 5 mm in consideration of the required air permeability and the strength of the wire constituting the mesh.

  Furthermore, the storage pocket 13 shown in FIGS. 10 and 11 has a transparent sheet structure that can transmit light. In the storage pocket 13 in these figures, the back sheet 14 is a transparent sheet 14B. The transparent sheet 14B is a plastic sheet having flexibility. The transparent sheet 14B has a structure in which the inside can be visually recognized from the outside as a colorless or lightly colored plastic sheet. As described above, the solar charger using the back sheet 14 as a plastic sheet can realize a simple waterproof property, so that it can be stored in the storage pocket 13 even in the case of sudden rain when used outdoors. There exists the characteristic which can protect the rechargeable electric equipment 40 from rainwater temporarily. However, although the transparent sheet is not shown, a plurality of through holes can be opened to improve air permeability.

  The power generation sheets 10 and 30 connect the output cable 20 connected to the solar module 70. One end of the output cable 20 is connected to the solar module 70, and an output connector 21 is connected to the tip of the output cable 20 so as to be detachable from the rechargeable electric device 40. In this solar charger, the output connector 21 of the output cable 20 is connected to the rechargeable electric device 40, and the rechargeable electric device 40 connected to the solar module 70 via the output cable 20 is stored in the power generation sheets 10 and 30. Store in the pocket 13. The solar charger can be electrically connected to the power generation sheets 10 and 30 via the output cable 20 while easily taking the rechargeable electric device 40 into and out of the storage pocket 13. However, it is not always necessary to connect the solar cell and the rechargeable electric device with an output cable. For example, a connector connected to the solar cell is provided inside the storage pocket so that the rechargeable electric device is stored in the storage pocket. In this state, the power generated by the solar cell can be supplied to the rechargeable electric device by connecting to the connector.

  In the solar chargers 100, 200, and 300 of FIGS. 4, 7, and 10, a USB connector 21A is connected to the tip of the output cable 20 that is connected to the power generation sheets 10 and 30. Since this output cable 20 has one end connected to the solar module 70 and the USB connector 21A connected to the tip thereof, the output cable 20 is connected to all electronic devices to which the USB connector 21A can be connected, and an electronic device having a USB connector. The secondary battery built in the battery can be charged.

  The above solar charger accommodates the rechargeable electrical device 40 in the storage pocket 13 and connects it to the solar module 70 via the output cable 20 and suspends the power generation sheets 10 and 30 inside the window glass 50 and the like. Alternatively, the secondary battery 41 of the rechargeable electric device 40 that is attached to the window glass 50 and stored in the storage pocket 13 is charged with the generated power of the solar module 70. In addition, although the above example has described the usage example which arrange | positions a solar charger inside a window glass in detail, a solar charger is a place irradiated with sunlight, indoors or outdoors. It is also possible to charge the secondary battery of the rechargeable electric device by arranging and generating power with a solar battery.

  The rechargeable electric device 40 stored in the storage pocket 13 is an electric device incorporating a secondary battery 41 that is charged by the generated power of the solar cell 21 and has a size and an external shape that can be stored in the storage pocket 13. is doing. The rechargeable electric device 40 may be an emergency charger 40A for charging a portable device connected to the outside, or a portable device such as a mobile phone or an IC player. As will be described later in detail, the rechargeable electric device 40 that is the emergency charger 40A is charged with the power generated by the solar module 70 and the built-in secondary battery 41, and with the power of the charged secondary battery 41, Charge secondary batteries of other portable devices connected to the outside. Although not shown in the figure, a rechargeable electric device that is a portable device charges a secondary battery, which is a built-in battery, with the generated power of the solar cell in a state where the output cable is connected and stored in a storage pocket.

Furthermore, the solar charger of the present invention includes a rechargeable electrical device 40 that is connected to the solar module 70 of the power generation sheets 10 and 30 and has a built-in secondary battery 41 that is charged by the generated power of the solar module 70. be able to. A rechargeable electric device 40 shown in the figure is an emergency charger 40A that charges a built-in battery of a portable device connected to the outside.
(Emergency charger)

  As shown in FIGS. 5, 9, and 11, the emergency charger 40 </ b> A is connected to the solar module 70 through the output cable 20 while being stored in the storage pocket 13, and the generated power of the solar module 70. The secondary battery 41 built in is charged. Further, as shown in FIG. 12, the emergency charger 40A charges the built-in battery 61 such as the connected portable device 60 with the charged secondary battery 41.

  As shown in FIGS. 12 and 13, the emergency charger 40A is provided with a connector 42 and a lead wire (not shown) connected to a portable device 60 such as a cellular phone. The connector 42 and the lead wire are connected to the secondary battery 41 charged by the solar module 70 via a power supply circuit (not shown) built in the emergency charger 40A or not via the power supply circuit. The internal battery 61 of the mobile device 60 such as a mobile phone connected by the secondary battery 41 is charged. The power supply circuit built in the emergency charger 40A is a circuit that stabilizes and outputs the voltage of the secondary battery 41 to a constant voltage or outputs the output current with a constant output current. Furthermore, the emergency charger 40A is provided with a USB connector 42A that outputs the power of the secondary battery 41. The emergency charger 40A can charge a portable device connected directly to the USB connector 42A and various portable devices 60 that can be connected via the USB connector 62.

Furthermore, the emergency charger 40A shown in the figure includes a display unit 43 that displays a charge state of the built-in secondary battery 41. The emergency charger 40A shown in FIG. 13 includes a light emitting diode 44 disposed inside a case 45 that is translucent in whole or in part, and a display unit 43 is provided. The display unit 43 can visually recognize the lighting state of the light emitting diode 44 built in the case 45 from the outside through the case 45. However, the display unit can be a pilot lamp. In the display unit which is a pilot lamp, a light emitting diode is disposed in an opening window opened in the case. The display unit 43 changes the lighting state of the light emitting diode 44 such as the light emission color and the flashing pattern in the charging state of the secondary battery 41 charged by the solar module 70, thereby indicating the charging state and remaining capacity of the secondary battery 41. Users can be clearly informed.
(Modified example of emergency charger)

  The emergency charger 40B shown in FIG. 2 is a small type in which only one secondary battery is accommodated, unlike the examples of FIGS. The emergency charger 40B also includes an input terminal 42B on one end face and an output terminal 42C on the other end face. Thus, by providing the input / output terminals 42B and 42C on different surfaces, it is possible to avoid a situation where the user erroneously inserts the input / output terminals. Further, in this example, the input terminal 42B is a USB-miniB type and the output terminal 42C is a USB-A type. Thus, by making the shapes of the input / output terminals different from each other, it is also possible to reduce terminal confusion.

  The emergency charger 40B also includes a display unit 43B and a switch 46 on the upper surface. When the switch 46 is pressed, the output of DC power from the output terminal, that is, the discharge of the emergency charger 40B is started. Thereby, the rechargeable electric device 40 such as a mobile phone connected to the output terminal can be charged. During this time, the LED lamps constituting the display unit 43B display a lighting pattern indicating that charging is in progress. For example, during charging, blinking is repeated approximately every 1.5 seconds, and when the charging is completed, it is continuously lit. In addition, when there is an abnormality, it blinks approximately every 0.5 seconds and can notify the user of the occurrence of the abnormality.

  Further, this switch 46 can be provided with a remaining capacity display function. For example, by pressing the switch 46 for 2 seconds or longer, the remaining amount check is executed, and the lighting pattern of the display unit 43B is changed according to the remaining capacity of the emergency charger 40B. For example, when the remaining capacity is 80% or more, it is lit for 3 seconds, indicating that it can be used, in other words, no further charging is required. When the remaining capacity is 20% to 80%, the blinking pattern of lighting for 0.7 seconds and turning off for 0.3 seconds is repeated three times. If the remaining capacity is 20% or less, the flashing pattern of lighting for 0.1 seconds and turning off for 0.9 seconds is repeated three times to notify the user that charging is necessary. With such a remaining capacity display function, the user can easily determine the remaining capacity of the emergency charger 40B by only blinking one LED lamp.

9 and 11, the solar charger described above is a secondary battery 41 using the charging power of the solar module 70 in a state where the emergency charger 40A is stored in the storage pocket 13 and connected to the solar module 70. The user can visually check the state of charge. For this reason, the user can use the solar charger with peace of mind while confirming that the secondary battery 41 of the emergency charger 40A is reliably charged. The emergency charger 40A charged with the secondary battery 41 is taken out of the storage pocket 13 or stored in the storage pocket 13 and connected to another portable device 60 to charge the built-in battery 61 of the portable device 60. To do.
(Mounting structure of output cable 20)

  Further, this solar charger can include not only the protection of the solar battery cell 72 but also the protection structure of the output cable 20. That is, even if a force that pulls the output cable unexpectedly is applied, such as dropping the solar charger while the output connector 21 at the tip of the output cable 20 is caught, the output cable can be prevented from falling off or breaking.

  As described above, the solar charger is provided with a power supply terminal, that is, an output connector for taking out electric power to the outside. When the output connector is directly attached to the solar charger, it is inconvenient to connect to an external device. Therefore, a configuration is adopted in which the output connector is provided at the tip of the output cable after being pulled out through the output cable. For example, a solar charger with a general-purpose connector that can supply power such as USB or an output connector such as a dedicated power supply terminal provided at the tip of the output cable and connected to an input connector of a mobile device such as a mobile phone or mobile device Charge from. In such a configuration, from the viewpoint of cost reduction and prevention of loss of the output cable, the output cable is often directly attached without being separable from the solar charger. However, when the output cable is directly attached, the output cable is often directly connected to the substrate 71 on which the solar cells 72 are mounted with solder, silicone, or the like. It becomes weak in structure.

  Therefore, in the present embodiment, a tag through which the output cable 20 is passed is provided so that a tensile force is not directly applied to the directly attached portion. Such an attachment structure of the output cable 20 will be described with reference to FIGS. In these drawings, FIG. 16 is a perspective view showing a state in which the cover sheet is removed and the output cable 20 is pulled out for explanation from FIG. 4, and FIG. 17 is a state in which the solar module 70 is unfolded from the cover sheet. FIG. 18 is an enlarged view showing the second tag 82 and the cable outlet 83, and FIG. 19 shows a state in which the output cable 20 and the second tag 82 are bound by the binding band 84. The schematic diagram to show is shown, respectively. As shown in these drawings, the seat cover 11 has a first tag 81 fixed to one side surface and a second tag 82 fixed to the other side surface inside the sheet storage space. These tags are formed in a loop shape through which the output cable 20 passes as shown in FIG. Each of the tags 81 and 82 is composed of a nonwoven fabric or the like formed in a belt shape, and is fixed to the seat cover 11 by a method such as sewing or adhesion. On the side where the second tag 82 is provided, a cable lead-out port 83 is opened as a cable lead-out portion for pulling out the output cable 20 to the outside. The cable outlet 83 is provided in the vicinity of the second tag 82 in a cut shape. However, without providing such a cut, for example, the sewing of the seat cover may be partially omitted in the vicinity of the second tag to form a cable lead-out portion.

  As shown in FIG. 17, the output cable 20 fixed to the board 71 passes through the first tag 81 once, and is then drawn out from the cable outlet 83 opened on the opposite side surface to the outside, here the storage pocket. . In this way, once the cable is shaken to the side surface, the pulling force of the output cable 20 does not directly act on the connection portion with the solar module 70 and is distributed to the first tag 81. The drag can be increased to prevent damage to the solar charger.

  Further, as shown in FIGS. 18 and 19, by providing the second tag 82 on the opposite side of the first tag 81, the drag can be further increased. In particular, in a state where the output cable 20 is passed through the second tag 82, the binding band 84 is passed through the second tag 82, and the second tag 82 and the output cable 20 are bound by the binding band 84. As a result, the frictional force due to the binding portion of the binding band 84 is also taken into account, and the tensile force is also received by the second tag 82, so that the force against the pulling force of the output cable 20 is further exerted to The drawer part can be reliably protected. As shown in FIG. 18, the binding band 84 binds the output cable 20 at a position separated from the base of the second tag 82 (for example, about 1 cm). Further, as shown in FIG. 19, after binding with the binding band 84, the excess band portion is cut so as not to be bulky. Thus, according to the structure in which the output cable 20 is held by the two tags, the tensile strength can be about 10 kg / N / m 2.

  In the above example, two tags are used to distribute the pulling force, but the effect of protecting the output cable can be obtained with only one of the tags. For example, the first tag can receive a considerable tensile force by once swinging the output cable to the side opposite to the cable outlet by the first tag.

  The solar charger according to the present invention is suitably used as a charger for charging a mobile phone, a portable music player, an emergency charger, etc., particularly as a portable charger that can be used even in places where commercial power is not available. it can.

100, 200, 300 ... solar charger 10 ... power generation sheet 11 ... seat cover 13 ... storage pocket 14 ... back sheet; 14A ... mesh sheet; 14B ... transparent sheet 15 ... fastener 16 ... peripheral wall 17 ... reinforcing wire 18 ... desorption connection Tool 20 ... Output cable 21 ... Output connector; 21A ... USB connector 25 ... Hanging hole 26 ... Suction cup 30 ... Power generation sheet 31 ... Seat cover 40 ... Rechargeable electrical equipment; 40A, 40B ... Emergency charger 41 ... Secondary battery 42 ... Connector; 42A ... USB connector 42B ... Input terminal 42C ... Output terminals 43, 43B ... Display 44 ... Light-emitting diode 45 ... Case 46 ... Switch 50 ... Window glass 51 ... Window frame 52 ... Hook 53 ... Hanging string 60, 60B ... Portable device 61 ... Built-in battery 62 ... USB connector 63 ... Dedicated cable 70 ... Solar module DESCRIPTION OF SYMBOLS 1 ... Substrate 72 ... Solar cell 73 ... Translucent sheet 74 ... Protection sheet 75, 75B ... Cushion sheet 76 ... Double-sided tape 77 ... Double-sided tape 78 ... Sheet storage space 79 ... Opening window 80 ... Translucent member 81 ... No. One tag 82 ... second tag 83 ... cable outlet 84 ... binding band 101 ... case 102 ... bottom face 104 ... solar battery 105 ... spare battery 106 ... external battery

Claims (7)

A substrate having solar cells arranged on the surface;
A flexible translucent sheet covering both sides of the substrate;
A solar module comprising:
A cushion sheet with the solar module fixed to the upper surface;
A seat cover for storing the cushion seat therein is formed in accordance with the outer shape of the cushion seat, and a seat cover is formed that has an open window that is open to communicate with the seat storage space;
A solar charger comprising:
By storing the cushion sheet in the seat storage space of the seat cover, the solar cell is placed on the cushion sheet so that the solar cell can receive light from the surface of the seat cover through the opening window. A solar charger characterized by being positioned and fixed. The solar charger according to claim 1, further comprising:
The solar module includes a translucent protective sheet that further covers the translucent sheet on the upper and lower surfaces,
The said translucent sheet | seat is comprised with a thermoplastic resin, The side surface of the said solar module is adhere | attached with this translucent sheet | seat, The solar charger characterized by the above-mentioned. The solar charger according to claim 1 or 2,
A solar charger, wherein the cushion sheet is made of a foamable resin sheet. A solar charger according to any one of claims 1 to 3,
A solar charger, wherein the translucent sheet is made of an ethylene vinyl acetate resin. A solar charger according to any one of claims 1 to 4,
The solar battery charger is characterized in that the seat cover is sewn by sewing an edge, and at least a part of the cushion seat is sewn to the seat cover. The solar charger according to any one of claims 1 to 5, further comprising:
An output cable for taking out the electric power generated by the solar cell drawn from the solar module;
Inside the sheet storage space, it is provided with a loop-shaped first tag that passes through the output cable, fixed to one side.
Further, the solar battery charger is characterized in that the seat cover is provided with a cable lead-out portion for pulling out the output cable on the side opposite to the side provided with the first tag. The solar charger according to claim 6, further comprising:
Inside the sheet storage space, it is provided with a loop-shaped second tag that passes through the output cable, fixed to the side surface opposite to the side on which the first tag is provided,
The solar charger, wherein the output cable is formed by binding the output cable through the second tag with a binding band together with the second tag.

Images