US20200028465A1 - Panel connected body, power generation module connected body, and power generation device - Google Patents

Panel connected body, power generation module connected body, and power generation device Download PDF

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Publication number
US20200028465A1
US20200028465A1 US16/475,454 US201816475454A US2020028465A1 US 20200028465 A1 US20200028465 A1 US 20200028465A1 US 201816475454 A US201816475454 A US 201816475454A US 2020028465 A1 US2020028465 A1 US 2020028465A1
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United States
Prior art keywords
power generation
row
column
connected body
generation module
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Abandoned
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US16/475,454
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English (en)
Inventor
Yuki Hayashi
Kiyoshige Kojima
Masayoshi Yoshida
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Zeon Corp
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Zeon Corp
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Assigned to ZEON CORPORATION reassignment ZEON CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAYASHI, YUKI, KOJIMA, KIYOSHIGE, YOSHIDA, MASAYOSHI
Publication of US20200028465A1 publication Critical patent/US20200028465A1/en
Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/20—Collapsible or foldable PV modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/049—Protective back sheets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present disclosure relates to a panel connected body, a power generation module connected body, and a power generation device.
  • JPH9-51118A discloses a sheet-shaped solar cell (photoelectric conversion module connected body) in which a plurality of solar cells (photoelectric conversion modules) arranged with a predetermined spacing and a flexible conductive member (connection portion) connecting electrodes of the solar cells are sandwiched vertically between sheet-shaped transparent film members having flexibility and elasticity.
  • the photoelectric conversion module connected body can be unfolded to extract electric power generated by the photoelectric conversion modules and use the electric power in an external device.
  • the sheet-shaped solar cell can be folded to be easily stored or carried.
  • JP2007-32171A discloses a foldable board (panel connected body) configured to sequentially increase or decrease the widths of gussets corresponding to laterally extending folds.
  • Such a panel connected body can be conveniently stored or transported in a folded state even though it has a certain thickness.
  • the photoelectric conversion module connected body disclosed in PTL 1 can be folded and stored when not in use, as described above. However, the photoelectric conversion module connected body is only intended to be folded in one direction (column direction), and has room for improvement in storability.
  • the panel connected body disclosed in PTL 2 has the gusset widths defined based on the thickness of the board, but has room for improvement in storability.
  • An object of the present disclosure is to provide a panel connected body, a power generation module connected body and a power generation device having improved storability.
  • a presently-disclosed panel connected body comprises: a plurality of flat panels arranged in a matrix of m rows and n columns, where m ⁇ 2 and n ⁇ 2; a plurality of row-direction connection portions which connect together the panels that are adjacent in a row direction; and a plurality of column-direction connection portions which connect together the panels that are adjacent in a column direction, wherein the panel connected body is foldable between adjacent panels of the plurality of panels, a first type row satisfying relationships D 1 ⁇ 2L and D y ⁇ D y ⁇ 1 +2L and a second type row satisfying relationships D n ⁇ 2L and D y ⁇ D y+1 +2L are alternately included, where D y is a length along the column direction of the column-direction connection portions in a y-th column, and L is a thickness of the panels, the panel connected body satisfies a relationship E ⁇ W C ⁇ L, where W C is a length along the column direction of the panels, and E is a
  • the panel connected body can be smoothly folded without being obstructed by the column-direction connection portions located on the inner side during folding, and also the row-direction connection portions do not protrude outward beyond the panels in the column direction.
  • Such a panel connected body thus has improved storability.
  • the presently-disclosed panel connected body satisfies the relationship E ⁇ W C ⁇ L ⁇ (n ⁇ 1) and opposing ends in the column direction of the plurality of row-direction connection portions arranged in the same row are aligned along the row direction.
  • E ⁇ W C ⁇ L ⁇ (n ⁇ 1) the relationship of opposing ends in the column direction of the plurality of row-direction connection portions arranged in the same row are aligned along the row direction.
  • the presently-disclosed panel connected body comprises, alternately in the row direction, a first column satisfying the relationships C 1 ⁇ 2L and C x ⁇ C x ⁇ 1 +2L and a second column satisfying relationships C m ⁇ 2L and C x ⁇ C x+1 +2L, where C x is a length along the row direction of the row-direction connection portions in an x-th row.
  • C x is a length along the row direction of the row-direction connection portions in an x-th row.
  • the first row is the first type row and the first column is the second type column, or the first row is the second type row and the first column is the first type column.
  • each panel is prevented from being far from both of a panel adjacent in the row direction and a panel adjacent in the column direction. The stability of the panels can thus be improved.
  • the presently-disclosed panel connected body satisfies the relationship F ⁇ W R ⁇ L, where W R is a length along the row direction of the panels and F is a length along the row direction of the row-direction connection portions, and opposing ends in the row direction of the column-direction connection portions do not protrude outward in the row direction beyond any of the panels connected together with the column-direction connection portions.
  • W R is a length along the row direction of the panels
  • F is a length along the row direction of the row-direction connection portions
  • the presently-disclosed panel connected body satisfies the relationship F ⁇ W R ⁇ L ⁇ (m ⁇ 1) and opposing ends in the row direction of the plurality of column-direction connection portions arranged in the same column are aligned.
  • F ⁇ W R ⁇ L ⁇ (m ⁇ 1) the relationship of the presently-disclosed panel connected body satisfies the relationship F ⁇ W R ⁇ L ⁇ (m ⁇ 1) and opposing ends in the row direction of the plurality of column-direction connection portions arranged in the same column are aligned.
  • a presently-disclosed power generation module connected body comprises the panel connected body, wherein the panels are power generation modules, and at least one of the row-direction connection portion and the column-direction connection portion comprises a conductor electrically connecting the power generation modules.
  • At least one of the row-direction connection portion and the column-direction connection portion is located along a lower end of the power generation module connected body, and further comprises a conductor layer and a protective layer stacked in the vertical direction, and the protective layer is located closer to the lower end than the conductor layer.
  • the protective layer or the power generation module is located on the inner side of the conductor layer. This prevents an excessive bending force on the conductor layer, and prevents a break of the conductor.
  • the presently-disclosed power generation module connected body comprises the power generation modules which are photoelectric conversion modules.
  • a presently-disclosed power generation device comprises: the power generation module connected body; and a main body electrically connected to the power generation module connected body.
  • FIG. 1 is a block diagram illustrating a schematic structure of a power generation device according to one of the disclosed embodiments
  • FIG. 2 is a perspective view of the power generation module connected body illustrated in FIG. 1 in an unfolded state
  • FIG. 3A is a top view of the power generation module connected body illustrated in FIG. 1 in an unfolded state
  • FIG. 3B is a front view of the power generation module connected body illustrated in FIG. 1 in an unfolded state
  • FIGS. 4A to 4C are partially enlarged sectional views of the power generation module connected body illustrated in FIG. 1 in an unfolded state;
  • FIG. 5 is a bottom view of the power generation module connected body illustrated in FIG. 1 in an unfolded state
  • FIG. 6 is an enlarged view of another example of the column-direction width of the row-direction connection portions illustrated in FIG. 3A ;
  • FIG. 7A is a top view of the power generation module connected body illustrated in FIG. 1 in a row direction folded state
  • FIG. 7B is a front view of the power generation module connected body illustrated in FIG. 1 in a row direction folded state
  • FIG. 8 is a partially enlarged sectional view of the power generation module connected body illustrated in FIG. 1 in a row direction folded state;
  • FIG. 9A is a top view of the power generation module connected body illustrated in FIG. 1 in a stored state
  • FIG. 9B is a side view of the power generation module connected body illustrated in FIG. 1 in a stored state
  • FIG. 10 is a top view of a first modification of the power generation module connected body illustrated in FIG. 1 in an unfolded state
  • FIG. 11 is a top view of the modification of the power generation module connected body illustrated in FIG. 10 in an unfolded state
  • FIG. 12A is a partially enlarged sectional view of a second modification of the power generation module connected body illustrated in FIG. 1 in an unfolded state;
  • FIG. 12B is a partially enlarged sectional view of a third modification of the power generation module connected body illustrated in FIG. 1 in an unfolded state;
  • FIG. 13 is a top view of a fourth modification of the power generation module connected body illustrated in FIG. 1 in an unfolded state.
  • FIGS. 14A to 14C illustrate examples of a power generation module connected body having a conductive layer that is disposed such that adjacent power generation modules are connected vertically.
  • vertical direction refers to the direction perpendicular to the paper surface of a top view of a power generation module connected body in FIG. 3A , etc.
  • upward refers to the direction to the front from the paper surface in the drawing
  • downward refers to the direction opposite to the upward direction.
  • front side refers to the upward facing side of the power generation module connected body in an unfolded state
  • back side refers to a side opposite to the front side.
  • row direction A refers to the rightward direction in top a view of a power generation module connected body in FIG. 3A , etc.
  • column direction B refers to the downward direction in the top view.
  • FIG. 1 is a block diagram illustrating a schematic structure of a power generation device 1 according to one of the disclosed embodiments.
  • the power generation device 1 according to this embodiment includes a power generation module connected body 10 and a main body 20 .
  • the power generation device 1 can be supplied with power from a commercial power supply via an AC adapter 30 .
  • the AC adapter 30 includes a power outlet 31 and an AC/DC converter 32 .
  • the AC/DC converter 32 receives input of an AC voltage from the commercial power supply via the power outlet 31 , converts the input AC voltage to a DC voltage, and supplies the DC voltage to the main body 20 .
  • the power generation module connected body 10 includes a plurality of power generation modules P and a connection portion 11 .
  • the connection portion 11 mechanically and electrically connects the power generation modules P to each other.
  • Each power generation module P is a flat panel in appearance.
  • FIG. 1 illustrates four power generation modules P, but the number of the power generation modules P is not limited to 4.
  • Each power generation module P includes a power generation section 12 .
  • the power generation section 12 is, for example, a solar cell made of solar cells configured to photoelectrically convert incident light, such as sunlight or room light, and outputs electric power.
  • the power generation section 12 is not limited to a solar cell and may be a power generator that generates electric power utilizing energy other than incident light, such as geothermal heat.
  • the power generation module P includes a substrate (not illustrated) for supporting the power generation section 12 , extraction wiring (not illustrated) for extracting electric power generated by the power generation section 12 , and the like, in addition to the power generation section 12 .
  • Solar cells used as the power generation section 12 are broadly classified into two types: inorganic solar cells in which an inorganic material is used and organic solar cells in which an organic material is used.
  • inorganic solar cells include Si solar cells in which silicon (Si) is used and compound solar cells in which a compound is used.
  • organic solar cells include thin-film solar cells such as low-molecular vapor deposition-type solar cells in which an organic pigment is used, polymer coating-type solar cells in which a conductive polymer is used, and coating-conversion-type solar cells in which a conversion-type semiconductor is used; and dye-sensitized solar cells formed from titania, an organic dye, and an electrolyte.
  • solar cells included used as the power generation section 12 include organic/inorganic hybrid solar cells and solar cells in which a perovskite compound is used.
  • a thin panel-shaped solar cell panel is used as the solar cell, and a dye-sensitized solar cell formed using a plastic film or the like is preferable.
  • the thin panel-shaped solar cell panel is not limited to a panel formed using a plastic film or the like, and may be any type as long as it is a similar thin panel.
  • the main body 20 includes an interface 21 , a booster circuit section 22 , a power generation module voltage detection section 23 , an AC adapter voltage detection section 24 , a rechargeable battery 25 , an external interface (IF) 26 , a charge/discharge control circuit 27 , and a controller 28 .
  • the interface 21 is a device for mechanically and electrically connecting each power generation module P to the main body 20 .
  • the interface 21 may connect the power generation module P removably.
  • the interface 21 outputs electric power supplied from the connected power generation module P, to the booster circuit section 22 .
  • the booster circuit section 22 boosts the voltage of the electric power supplied from the power generation module P via the interface 21 to a predetermined voltage required for charging the rechargeable battery 25 , and outputs the resultant voltage to the charge/discharge control circuit 27 .
  • the power generation module voltage detection section 23 detects a voltage (power generation module voltage) supplied from the power generation module P connected to the interface 21 of the main body 20 to the booster circuit section 22 via the interface 21 , and outputs the result of the detection to the controller 28 .
  • the AC adapter voltage detection section 24 detects a voltage (AC adapter voltage) supplied from the AC adapter 30 to the charge/discharge control circuit 27 , and outputs the result of the detection to the controller 28 .
  • the rechargeable battery 25 is a battery that can be charged and discharged, such as a lead-acid battery or a lithium ion secondary battery.
  • the external interface (IF) 26 is an interface capable of connecting to an external device and supplying electric power to the connected external device.
  • the external IF 26 is not limited, and is, for example, a connector (USB connector) using a USB (Universal Serial Bus) interface or a cable having a connector at its end.
  • the external IF 26 connects to the external device and, for example in response to a charging request from the external device, supplies electric power to the external device.
  • the power generation device 1 can be mechanically and electrically attached to and removed from various devices to be charged, such as a mobile phone, a smartphone, a tablet device, and a personal computer, via the external IF 26 .
  • the charge/discharge control circuit 27 performs charge/discharge control among the booster circuit section 22 , the AC adapter 30 , the rechargeable battery 25 , and the external device connected via the external IF 26 .
  • the controller 28 controls operation of each section of the main body 20 .
  • the controller 28 controls the charge/discharge control circuit 27 to control paths for charging and discharging, based on the detection result of the power generation module voltage detection section 23 , the detection result of the AC adapter voltage detection section 24 , the charge level of the rechargeable battery 25 , and so on.
  • FIGS. 2 to 5 are illustrations of the power generation module connected body 10 according to this embodiment in an unfolded state.
  • FIG. 2 is a perspective view
  • FIG. 3A is a top view
  • FIG. 3B is a front view
  • FIGS. 4A to 4C are partially enlarged sectional views along the row direction
  • FIG. 5 is a bottom view.
  • the “unfolded state” is a state in which, in order to generate electric power using the power generation device 1 , the power generation modules P are unfolded so as not to overlap each other, such that the power generation module connected body 10 is planar as a whole.
  • the “stored state” refers to a state in which, in order to store the power generation device 1 , adjacent power generation modules P are folded so that all power generation modules P overlap in the vertical direction, as described later with reference to FIGS. 9A and 9B .
  • the unfolded state and the stored state are defined for the sake of convenience, to describe the state of the power generation module connected body 10 .
  • the power generation module connected body 10 may be used for power generation with some of the power generation modules P being folded, or stored with some of the power generation modules P being not folded.
  • the power generation module connected body 10 has the power generation modules P arranged in a matrix of 5 rows and 5 columns, in an unfolded state.
  • the power generation modules P are mechanically and electrically connected by the connection portion 11 in the row direction A and in the column direction B.
  • the connection portion 11 includes row-direction connection portions 13 and column-direction connection portions 14 , so that power generation modules P which are adjacent to each other along the row direction A are connected together with the row-direction connection portions 13 and power generation modules P which are adjacent to each other along the column direction B are connected together with the column-direction connection portions 14 .
  • At least one of the row-direction connection portion 13 and the column-direction connection portion 14 includes a conductor that electrically connects the power generation modules P.
  • each power generation module P is rectangular in top view.
  • Each power generation module P may be covered with a casing to provide environmental resistance.
  • each power generation module P has at least such rigidity that is higher than that of the connection portion 11 between the power generation modules P and resists folding.
  • Each power generation module P is preferably covered on its periphery with a frame which is a rigid member with particularly high rigidity. By covering the power generation module P with such a frame, for example, flexural deformation of the power generation module P caused by stress from the connection portion 11 can be prevented.
  • the length along the row direction A of the row-direction connection portions 13 (hereinafter “row-direction length” as appropriate) is defined as C, and the length along the column direction B of the column-direction connection portions 14 (hereinafter “column direction length” as appropriate) is defined as D.
  • the length along the column direction B of the row-direction connection portions 13 (hereinafter “column-direction width” as appropriate) is defined as E, and the length along the row direction A of the column-direction connection portions 14 (hereinafter “row-direction width” as appropriate) is defined as F.
  • the length along the row direction A of the power generation modules P is defined as W R
  • the length along the column direction B of the power generation modules P is defined as W C .
  • Each power generation module P has the power generation section 12 exposed upward, as illustrated in FIG. 2 .
  • the power generation module P includes extraction wiring connected to the power generation section 12 .
  • the power generation module P extracts electric power generated by the power generation section 12 through the extraction wiring, and outputs the electric power to, for example, the interface 21 of the main body 20 via the connection portion 11 and/or other power generation modules P.
  • the power generation section 12 in the power generation module P may be disposed to be capable of receiving incident light in a direction other than from above, for example, from below, to generate power.
  • connection portion 11 is a connection member having flexibility.
  • the connection portion 11 mechanically connects the power generation modules P in the row direction A and in the column direction B, and is configured so that the power generation modules P connected via the connection portion 11 are foldable.
  • the connection portion 11 preferably has higher flexibility than the power generation modules P from the viewpoint of foldability.
  • the connection portion 11 includes a conductor (not illustrated) that electrically connects the power generation modules P.
  • the conductor is located to electrically connect any adjacent power generation modules P to each other.
  • the thickness of the connection portion 11 in the vertical direction is not greater than the thickness of the power generation modules P in the vertical direction.
  • the thickness of the connection portion 11 in the vertical direction is preferably less than the thickness of the power generation modules P in the vertical direction, as illustrated in FIGS. 4A to 4C .
  • At least one of the row-direction connection portion 13 and the column-direction connection portion 14 as the connection portion 11 is located along the lower end of the power generation module connected body 10 and includes a conductor layer 112 and a protective layer 113 stacked in the vertical direction.
  • the conductor layer 112 is a layer including a conductor, and is composed of, for example, a conductive member such as a conductive cable and/or a flexible board.
  • the protective layer 113 is composed of, for example, a covering member for protecting and/or reinforcing the conductor layer 112 .
  • connection portion 11 may have the protective layer 113 and the conductor layer 112 arranged in the order mentioned upward from the lower end as illustrated in FIG. 4A , have the conductor layer 112 and the protective layer 113 arranged in the order mentioned upward from the lower end as illustrated in FIG. 4B , or have the protective layer 113 , the conductor layer 112 , and the protective layer 113 arranged in the order mentioned upward from the lower end as illustrated in FIG. 4C .
  • the protective layer 113 is located closer to the lower end than the conductor layer 112 as illustrated in FIGS.
  • the protective layer 113 or the power generation module P when folding the power generation module connected body 10 between adjacent power generation modules P, the protective layer 113 or the power generation module P is located on the inner side of the conductor layer 112 . This prevents an excessive bending force on the conductor layer 112 , and suppresses a break of the conductor.
  • the conductor layer 112 In the case where the protective layer 113 is located above the conductor layer 112 as illustrated in FIGS. 4B and 4C , the conductor layer 112 can be further protected and/or reinforced.
  • connection portion 11 is configured to satisfy the relationship “row-direction length C ⁇ 2L”, where L is the thickness in the vertical direction of the power generation modules P as illustrated in FIGS. 4A to 4C .
  • the thickness L in the vertical direction of the power generation modules P is taken as thickness of the whole power generation module connected body 10 including the thickness of the connection portion 11 , as illustrated in FIGS. 4A to 4C .
  • the thickness L in the vertical direction of the power generation modules P is preferably 3 mm or less from the viewpoint of production technology.
  • the lower limit of the thickness of the power generation modules P is preferably about 10 ⁇ m.
  • n be the number (integer of 2 or more) of columns of the plurality of power generation modules P arranged in a matrix.
  • D y the column-direction length of the column-direction connection portions 14 in the y-th column
  • a first type row 201 satisfying the relationships D 1 ⁇ 2L and D y ⁇ D y ⁇ 1 +2L (see FIG. 3A ) and a second type row 202 satisfying the relationships D n ⁇ 2L and D y ⁇ D y+1 +2L (see FIG. 3A ) are alternately arranged along the column direction B.
  • the column-direction length D of the column-direction connection portions 14 is 2L or more for the first type row 201 in the first column and increases by 2L or more with each increase in the number of columns.
  • the column-direction length D of the column-direction connection portions 14 is 2L or more in the last column for the second type row 202 and increases by 2L or more with each decrease in the number of columns.
  • the column-direction length D of the 5 column-direction connection portions 14 which connect together the 5 power generation modules P (P 11 , P 12 , P 13 , P 14 , P 15 ) of the first row and the 5 power generation modules P (P 21 , P 22 , P 23 , P 24 , P 25 ) of the second row which are adjacent in the column direction B satisfies the relationships D 1 ⁇ 2L, D 2 ⁇ D 1 +2L, D 3 ⁇ D 2 +2L, D 4 ⁇ D 3 +2L, D 5 ⁇ D 4 +2L sequentially from the first column, forming the first type row 201 .
  • the column-direction length D of the 5 column-direction connection portions 14 which connect together the 5 power generation modules P (P 31 , P 32 , P 33 , P 34 , P 35 ) of the third row and the 5 power generation modules P (P 41 , P 42 , P 43 , P 44 , P 45 ) of the fourth row which are adjacent in the column direction B satisfies the relationships D 1 ⁇ 2L, D 2 ⁇ D 1 +2L, D 3 ⁇ D 2 +2L, D 4 ⁇ D 3 +2L, D 5 ⁇ D 4 +2L sequentially from the first column, forming the first type row 201 .
  • the column-direction length D of the 5 column-direction connection portions 14 which connect together the 5 power generation modules P (P 21 , P 22 , P 23 , P 24 , P 25 ) of the second row and the 5 power generation modules P (P 31 , P 32 , P 33 , P 34 , P 35 ) of the third row which are adjacent in the column direction B satisfies the relationships D 1 ⁇ D 2 +2L, D 2 ⁇ D 3 +2L, D 3 ⁇ D 4 +2L, D 4 ⁇ D 5 +2L, D 5 ⁇ 2L sequentially from the first column, forming the second type row 202 .
  • the column-direction length D of the 5 column-direction connection portions 14 which connect the 5 power generation modules P (P 41 , P 42 , P 43 , P 44 , P 45 ) of the fourth row and the 5 power generation modules P (P 51 , P 52 , P 53 , P 54 , P 55 ) of the fifth row which are adjacent in the column direction B satisfies the relationships D 1 ⁇ D 2 +2L, D 2 ⁇ D 3 +2L, D 3 ⁇ D 4 +2L, D 4 ⁇ D 5 +2L, D 5 ⁇ 2L sequentially from the first column, forming the second type row 202 .
  • the first type row 201 and the second type row 202 are alternately arranged along the column direction B.
  • the power generation modules P in the first row are offset with respect to each other by a distance equal to length L in the direction opposite to the column direction B.
  • the power generation modules P in the n-th column are offset with respect to the power generation modules P in the first column by a distance equal to length L ⁇ (n ⁇ 1) in the direction opposite to the column direction B.
  • the power generation module P 15 at the far right is offset with respect to the power generation module P 11 at the far left by a distance equal to length 4L in the direction opposite to the column direction B.
  • the positions of one ends in the column direction B (upper ends in FIG. 3A ) of the respective the row-direction connection portions 13 which connect together the 5 power generation modules P (P 11 to P 15 ) of the first row are aligned in the column direction B with the position of one end in the column direction B (upper end in FIG. 3A ) of the power generation module P 11 which is positioned lowermost in the column direction B among the 5 power generation modules P of the first row in FIG. 3A .
  • the positions of the other ends in the column direction B (lower ends in FIG. 3A ) of the respective row-direction connection portions 13 which connect together the power generation modules of the first row are aligned in column direction B with the position of the other end (lower end in FIG.
  • FIG. 6 is an enlarged view of another example of the column-direction width E of the row-direction connection portions 13 .
  • the power generation module P 12 positioned right to the power generation module P 11 is offset with respect to the power generation module P 11 by a distance equal to length L in the direction opposite to the column direction B.
  • the position of one end in the column direction B (upper end in FIG. 6 ) of the row-direction connection portion 13 which connects together the power generation modules P 11 and P 12 is aligned in column direction B with the position of one end in the column direction B (upper end in FIG. 6 ) of the power generation module P 11 .
  • the position of the other end in the column direction B (lower end in FIG. 6 ) of the row-direction connection portion 13 which connects together the power generation modules P 11 and P 12 is aligned in column direction B with the position of the other end in the column direction B (lower end in FIG.
  • the power generation module P 22 of the second row is offset with respect to the power generation module P 21 of the second row by a distance equal to length L in the column direction B.
  • the position of one end in the column direction B (upper end in FIG. 6 ) of the row-direction connection portion 13 which connects together the power generation modules P 21 and P 22 is aligned in column direction B with the position of one end in the column direction B (upper end in FIG. 6 ) of the power generation module P 22 . Further, the position of the other end in the column direction B (lower end in FIG.
  • FIG. 6 illustrates a row-direction connection portion 13 which connects together the power generation modules P (P 11 , P 12 ) of the first and second columns in the first row, and a row-direction connection portion 13 which connects together the power generation modules P (P 21 , P 22 ) of the first and second columns in the second row.
  • the same relationship holds true for any row-direction connection portion 13 .
  • the power generation module P 13 of the third column is offset with respect to the power generation module P 12 of the second column by a distance equal to length L in the direction opposite to the column direction B.
  • the position of one end in the column direction B (upper end in FIG.
  • the row-direction connection portion 13 which connects together the power generation modules P (P 12 , P 13 ) of the second and third columns is aligned in column direction B with the position of one end in the column direction B (upper end in FIG. 6 ) of the power generation module P 12 .
  • the position of the other end in the column direction B (lower end in FIG. 6 ) of the row-direction connection portion 13 which connects together the power generation modules P (P 12 , P 13 ) of the second and third columns is aligned in column direction B with the position of the other end in the column direction B (lower end in FIG. 6 ) of the power generation module P 13 .
  • the row-direction connection portion 13 which connects together the power generation modules P (P 12 , P 13 ) of the second and third columns is offset with respect to the row-direction connection portion 13 which connects together the power generation modules P (P 11 , P 12 ) of the first and second columns by a distance equal to length L in the direction opposite to the column direction B.
  • the power generation module connected body 10 is configured such that the relationship E W C ⁇ L is satisfied. With this configuration, it is possible to prevent opposing ends in the column direction B of the row-direction connection portions 13 from protruding outward in the column direction B beyond any of the power generation modules P connected together with the row-direction connection portions 13 . It is thus possible to improve the storability of the power generation module connected body 10 .
  • FIG. 7A is a top view of the power generation module connected body 10 in a state of being folded in the row direction (hereafter referred to as “row direction folded state” as appropriate).
  • FIG. 7B is a front view of the power generation module connected body 10 in a state of being folded in the row direction.
  • the power generation module connected body 10 is put in a row direction folded state as illustrated in FIGS. 7A and 7B .
  • alternate folding i.e. accordion folding
  • the power generation modules P (P 11 , P 21 , P 31 , P 41 , P 51 ) of the first column are folded so as to overlap the back side of the power generation modules P (P 12 , P 22 , P 32 , P 42 , P 52 ) of the second column (mountain folding).
  • the power generation modules P of the first and second columns overlapping in the vertical direction are folded so as to overlap the front side of the power generation modules P (P 13 , P 23 , P 33 , P 43 , P 53 ) of the third column (valley folding).
  • the power generation modules P of the first to third columns overlapping in the vertical direction are folded so as to overlap the back side of the power generation modules P (P 14 , P 24 , P 34 , P 44 , P 54 ) of the fourth column (mountain folding). Then, the power generation modules P of the first to fourth columns overlapping in the vertical direction are folded so as to overlap the front side of the power generation modules P (P 15 , P 25 , P 35 , P 45 , P 55 ) of the fifth column (valley folding).
  • the row-direction connection portions 13 are configured to satisfy the relationship “row-direction length C ⁇ 2L”. Accordingly, the length of the row-direction connection portions 13 between power generation modules P is sufficient in both of the parts subjected to mountain folding and the parts subjected to valley folding as illustrated in FIG. 7B , enabling smooth folding.
  • FIG. 8 is a partially enlarged sectional view of the power generation module connected body 10 in a row direction folded state, along the column direction. As illustrated in FIG. 8 , folding is made so that the length D along the column direction of the column-direction connection portions 14 which connect together the power generation modules P of the first row (P 11 , P 12 , P 13 , P 14 , P 15 ) and the power generation modules P of the second row (P 21 , P 22 , P 23 , P 24 , P 25 ) which are adjacent in the column direction increases in the downward direction.
  • folding is made so that the column direction length D of the column-direction connection portions 14 which connect together the power generation modules P of the third row and the power generation modules P of the fourth row which are adjacent in the column direction increases in the downward direction (not illustrated).
  • folding is made so that the column direction length D of the column-direction connection portions 14 which connect together the power generation modules P of the second row and the power generation modules P of the third row which are adjacent in the column direction, and the column-direction length D of the column-direction connection portions 14 which connect together the power generation modules P of the fourth row and the power generation modules P of the fifth row which are adjacent in the column direction increase in the upward direction.
  • FIG. 9A is a top view of the power generation module connected body 10 in a stored state.
  • FIG. 9B is a side view of the power generation module connected body 10 in a stored state.
  • the power generation modules P (P 11 , P 12 , P 13 , P 14 , P 15 ) of the first row overlapping in the vertical direction are folded so as to overlap the front side of all of the power generation modules P (P 21 , P 22 , P 23 , P 24 , P 25 ) of the second row overlapping in the vertical direction (valley folding).
  • the power generation modules P of the first and second rows overlapping in the vertical direction are folded so as to overlap the back side of all of the power generation modules P (P 31 , P 32 , P 33 , P 34 , P 35 ) of the third row overlapping in the vertical direction (mountain folding).
  • the power generation modules P of the first to third rows overlapping in the vertical direction are folded so as to overlap the front side of all of the power generation modules P (P 41 , P 42 , P 43 , P 44 , P 45 ) of the fourth row overlapping in the vertical direction (valley folding). Then, the power generation modules P of the first to fourth rows overlapping in the vertical direction are folded so as to overlap the back side of all of the power generation modules P (P 51 , P 52 , P 53 , P 54 , P 55 ) of the fifth row overlapping in the vertical direction (mountain folding).
  • the surfaces of adjacent power generation modules P can be made to overlap each other in the part in which the column direction length D of the column-direction connection portions 14 which connect together the power generation modules P adjacent in the column direction increases in the downward direction as illustrated in FIG. 8 .
  • the column direction width D of the column-direction connection portions 14 which connect together power generation modules P with a longer distance in the vertical direction in a folded state is longer, so that the power generation module connected body 10 can be folded smoothly.
  • the column direction width D of the column-direction connection portions 14 is 2L or more longer than the column direction width D of the column-direction connection portions 11 located immediately on the inner side in a folded state, and therefore smooth folding can be achieved without being obstructed by the column-direction connection portions 14 located on the inner side. The storability in a folded state can thus be improved.
  • FIG. 10 is a top view of a power generation module connected body 10 a in an unfolded state according to the first modification of the power generation module connected body 10 .
  • the power generation module connected body 10 a has a configuration similar to that of the power generation module connected body 10 except for the configuration described below.
  • the row-direction width C of the row-direction connection portions 13 of the connection portion 11 a satisfies the following relationships.
  • the power generation module connected body 10 a has, alternately along the row direction A, a first type column 203 satisfying the relationships C 1 ⁇ 2L and C x ⁇ C x ⁇ 1 +2L (see FIG. 10 ) and a second type column 204 satisfying the relationships C m ⁇ 2L and C x ⁇ C, x+1 +2L (see FIG.
  • the row-direction length C of the row-direction connection portions 13 is 2L or more in the first row for the first type column 203 and increases by 2L or more with each increase in the number of rows.
  • the row-direction length C of the row-direction connection portions 13 is 2L or more in the last row for the second type column 204 and increases by 2L or more with each decrease in the number of rows.
  • the row-direction length C of the row-direction connection portions 13 which connect together the power generation modules P (P 11 , P 21 , P 31 , P 41 , P 51 ) of the first column and the power generation modules P (P 12 , P 22 , P 32 , P 42 , P 52 ) of the second column which are adjacent in the row direction A satisfies the relationships C 1 ⁇ C 2 +2L, C 2 ⁇ C 3 +2L, C 3 ⁇ C 4 +2L, C 4 ⁇ C 5 +2L, C 5 ⁇ 2L sequentially from the first row, forming the second type column 204 .
  • the row-direction length C of the row-direction connection portions 13 which connect together the power generation modules P (P 13 , P 23 , P 33 , P 43 , P 53 ) of the third column and the power generation modules P (P 14 , P 24 , P 34 , P 44 , P 54 ) of the fourth column which are adjacent in the row direction A satisfies the relationships C 1 ⁇ C 2 +2L, C 2 ⁇ C 3 +2L, C 3 ⁇ C 4 +2L, C 4 ⁇ C 5 +2L, C 5 ⁇ 2L sequentially from the first row, forming the second type column 204 .
  • connection portions 13 which connect together the power generation modules P (P 12 , P 22 , P 32 , P 42 , P 52 ) of the second column and the power generation modules P (P 13 , P 23 , P 33 , P 43 , P 53 ) of the third column which are adjacent in the row direction A satisfies the relationships C i ⁇ 2L, C 2 ⁇ C 1 +2L, C 3 ⁇ C 2 +2L, C 4 ⁇ C 3 +2L, C 5 ⁇ C 4 +2L sequentially from the first row, forming the first type column 203 .
  • the row-direction length C of the connection portions 13 which connect together the power generation modules P (P 14 , P 24 , P 34 , P 44 , P 54 ) of the fourth column and the power generation modules P (P 15 , P 25 , P 35 , P 45 , P 55 ) of the fifth column which are adjacent in the row direction A satisfies the relationships C 1 ⁇ 2L, C 2 ⁇ C 1 +2L, C 3 ⁇ C 2 +2L, C 4 ⁇ C 3 +2L, C 5 C 4 +2L sequentially from the first row, forming the first type column 203 .
  • the first type row 201 and the second type row 202 are alternately arranged along the column direction.
  • the first row is the first type row 201 and the first column is the second type column 204 , or the first row is the second type row 202 and the first column is the first type column 203 .
  • the power generation module connected body 10 a satisfies the condition wherein the first row is the first type row 201 and the first column is the second type column 204 , or the condition wherein the first row is the second type row 202 and the first column is the first type column 203 .
  • the first row is the first type row 201 and the first column is the second type column 204 .
  • the power generation module connected body 10 a having the structure described above can be folded from any of the row direction and the column direction to be in a stored state, in addition to having the same advantageous effect as that of the power generation module connected body 10 . Moreover, the power generation module connected body 10 a satisfies the condition wherein the first row is the first type row 201 and the first column is the second type column 204 , or the condition wherein first row is the second type row 202 and the first column is the first type column 203 . Hence, each power generation module P is prevented from being far from both of a power generation module P adjacent in the row direction and a power generation module P adjacent in the column direction. The stability of the power generation modules P can thus be improved.
  • the row-direction width F of the column-direction connection portions 14 of the power generation module connected body 10 a satisfies the relationship F ⁇ W R ⁇ L. Further, opposing ends in the row direction A of the column-direction connection portions 14 do not protrude outward along the row direction A beyond any of the power generation modules P connected with the row-direction connection portions 14 . Thus, it is possible to further improve the storability of the power generation module connected body 10 a while providing the same advantageous effect as that of the power generation module connected body 10 .
  • the row-direction width F of the column-direction connection portions 14 satisfies the relationship F W R ⁇ L ⁇ (m ⁇ 1).
  • opposing ends in the row direction A of the plurality of column direction-connection portions 14 arranged in the same column are aligned.
  • FIG. 11 is a top view of a power generation module connected body 10 a′ in an unfolded state according to a modification of the power generation module connected body 10 a.
  • the power generation module connected body 10 a′ has the same configuration as the power generation module connected body 10 a except for the configuration described below.
  • the row-direction connection portions 13 of the power generation module connected body 10 a′ are each divided into two along the column direction B.
  • the column-direction connection portions 14 of the power generation module connected body 10 a′ are each divided into two along the row direction A.
  • FIG. 12A is a partially enlarged sectional view of a power generation module connected body 10 b in an unfolded state according to a second modification of the power generation module connected body 10 .
  • the power generation module connected body 10 b has the same configuration as the power generation module connected body 10 except that the power generation modules P are located above and below a connection portion 11 b.
  • the power generation module connected body 10 b has an effect of, when folded between adjacent power generation modules P, reducing the burden on the connection portion 11 b associated with the folding, because the power generation modules P are located on the inner side of the connection portion 11 b.
  • FIG. 12B is a partially enlarged sectional view of a power generation module connected body 10 c in an unfolded state according to a third modification of the power generation module connected body 10 .
  • the power generation module connected body 10 c has the same configuration as the power generation module connected body 10 except that a connection portion 11 c is located to connect adjacent power generation modules P to each other near the vertical center of the power generation modules P.
  • the power generation module connected body 10 c has an effect of, when folded between adjacent power generation modules P, reducing the burden on the connection portion 11 c associated with the folding, because the power generation modules P are located on the inner side of the connection portion 11 c.
  • FIG. 13 is a top view of a power generation module connected body 10 d in an unfolded state according to a fourth modification of the power generation module connected body 10 .
  • the power generation module connected body 10 d is the same as the power generation module connected body 10 except that power generation modules P′ which are circular in top view are used instead of the power generation modules P which are rectangular in top view.
  • the row-direction length C of the row-direction connection portions 13 at the connection portion 11 d is equal to the shortest interval along the row direction A between the power generation modules P′ connected together by the row-direction connection portions 13 .
  • FIG. 13 is a top view of a power generation module connected body 10 d in an unfolded state according to a fourth modification of the power generation module connected body 10 .
  • the power generation module connected body 10 d is the same as the power generation module connected body 10 except that power generation modules P′ which are circular in top view are used instead of the power generation modules P which are rectangular in top view.
  • the column-direction length D of the column-direction connection portions 14 at the connection portion 11 d is equal to the shortest interval along the column direction between the power generation modules P′ connected together by the column-direction connection portions 14 .
  • the length W R ′ along the row direction A of the power generation modules P′ and the length W C ′ along the column direction B of the power generation modules P′ are both equal to the diameter of circles which denote the power generation modules P′.
  • the connection portion 11 d satisfies the relationships described above, the power generation modules P′ are not limited to be circular in top view and may have any other shape in top view, such as a polygon.
  • the above merely describes one of the disclosed embodiments, and a variety of modifications may be made within the scope of the claims.
  • the arrangements of the power generation modules P and P′, the connection portions 11 to 11 d, and the like are described above using rows and columns, such rows and columns are defined for the purpose of illustration, and may be replaced with each other.
  • the upward direction and the downward direction are defined for the purpose of illustration, and may be replaced with each other.
  • the power generation module connected bodies 10 to 10 d in which the power generation modules P or P′ are arranged in a matrix of 5 rows and 5 columns
  • the power generation modules P or P′ may be arranged in a matrix of 2 rows or more and 2 columns or more.
  • the conductor layer 112 may be composed of a flexible printed circuit board (FPC) in which a conductor such as copper foil is sandwiched between insulators such as a base film and a cover film.
  • FPC flexible printed circuit board
  • each of the connection portions 11 to 11 d does not need include the protective layer 113 because the conductor layer 112 composed of an FPC has a protection function.
  • FIGS. 14A to 14C illustrate examples of the power generation module connected body 10 ( 10 a to 10 d ) in which, when the conductor layer 112 is composed of an FPC, the conductor layer 112 is located so as to connect adjacent power generation modules P or P′ near the vertical center.
  • the power generation module connected body 10 ( 10 a to 10 d ) refer to the power generation module connected body 10 , 10 a, 10 b, 10 c or 10 d, and means that the configurations illustrated in FIGS. 14A to 14C are applicable to any of the power generation module connected bodies described above.
  • each of the connection portions 11 to 11 d may include the protective layer 113 .
  • the protective layer 113 may be located to cover the power generation module P or P′ excluding part of the front side as illustrated in FIG. 14A .
  • the protective layer 113 may be located to cover the connecting part between the power generation module P or P′ and the conductor layer 112 from above and below as illustrated in FIG. 14B .
  • the protective layer 113 may be located to cover the conductor layer 112 from above and below as illustrated in FIG. 14C .
  • the thickness L of the power generation module P, P′ in the vertical direction is taken to be the thickness of the whole power generation module connected body 10 to 10 d including the thickness of the conductor layer 112 and/or the protective layer 113 .
  • connection of the main body 20 to the power generation modules P, P′ in the power generation device 1 is not limited.
  • the main body 20 may be integrated with any of the power generation modules P, P′, or connected to an end of any of the power generation modules P, P′.
  • the main body 20 may be removable from the power generation module P, P′.
  • the power generation module connected bodies 10 to 10 d according to this embodiment are not limited to be used together with the main body 20 to form the power generation device 1 , and may be used independently of the main body 20 .
  • the power generation module connected bodies 10 to 10 d according to this embodiment may include, for example, an interface having the same functions as the external IF 26 of the main body 20 and, when an external device is connected directly to the interface, supply electric power to the connected external device.
  • photoelectric conversion modules including the above-mentioned solar cells as the power generation section 12 may be used.
  • a photoelectric conversion module connected body using the above-mentioned photoelectric conversion modules may be used.
  • a photoelectric conversion device including the above-mentioned photoelectric conversion module connected body may be used.
  • Each structure described with regard to the power generation module connected bodies 10 to 10 d according to this embodiment is also applicable to any panel connected body including any flat panels not limited to the power generation modules P, P′ and any connection portion not limited to a connection portion including a conductor.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Fuel Cell (AREA)
  • Connection Of Batteries Or Terminals (AREA)
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TW201832370A (zh) 2018-09-01
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JP6516068B2 (ja) 2019-05-22
CN110199472A (zh) 2019-09-03
US20230238916A1 (en) 2023-07-27
CN110199472B (zh) 2022-09-30
US11942895B2 (en) 2024-03-26
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EP3576299A1 (en) 2019-12-04
EP3576299B1 (en) 2021-06-02

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