WO2010029883A1 - 太陽電池モジュール、太陽電池モジュールの敷設構造、及び太陽電池モジュールの敷設方法 - Google Patents
太陽電池モジュール、太陽電池モジュールの敷設構造、及び太陽電池モジュールの敷設方法 Download PDFInfo
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- WO2010029883A1 WO2010029883A1 PCT/JP2009/065367 JP2009065367W WO2010029883A1 WO 2010029883 A1 WO2010029883 A1 WO 2010029883A1 JP 2009065367 W JP2009065367 W JP 2009065367W WO 2010029883 A1 WO2010029883 A1 WO 2010029883A1
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- solar cell
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- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
- H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
- H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
-
- 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
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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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
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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 invention relates to a solar cell module laid on the roof or wall surface of a structure, a laying structure using the solar cell module, and a method for laying the solar cell module.
- a solar battery panel is an integrated solar battery, in which a conductive film or a semiconductor film is laminated on a glass substrate, and a plurality of grooves are provided on the glass substrate to form a predetermined number of unit batteries (solar battery cells).
- unit batteries solar battery cells
- Patent Document 1 discloses a method for manufacturing such a solar cell panel.
- a single solar cell module can obtain a voltage of 100 volts or more, but the current that can be generated is small. Therefore, the conventional photovoltaic power generation system ensures a practical current capacity by electrically connecting a plurality of solar cell modules in parallel using cables as disclosed in Patent Documents 2 and 3 below. It was.
- Patent Document 2 discloses a configuration in which four cables are connected to a solar cell module.
- a configuration is also disclosed in which a plurality of solar cell modules are connected in parallel and the solar cell modules connected in parallel are connected in series.
- Patent Document 2 a plurality of adjacent cables are directly connected and connected in parallel.
- the cables connected as disclosed in FIG. 8 of the same document are housed on the back surface of the own solar cell module or the back surface of the solar cell module in the same row (same stage).
- Patent Document 3 discloses a configuration in which four cables are connected to a solar cell module.
- the cable is long or short.
- the cables are different colors. Even in the configuration described in Patent Document 3, as disclosed in FIG. 7 of the same document, the connected cable is accommodated on the back surface of the own solar cell module or the back surface of the solar cell module in the same row (same stage). .
- FIG. 25 of Patent Document 4 discloses a configuration in which a conducting wire is extended to the long side of the solar cell panel.
- the solar cell module shown in Patent Document 4 has a short conducting wire, and the conducting wire is not extended out of the solar cell module in view of the positional relationship between the solar cell panel and the base material 62.
- the solar cell module shown by patent document 4 has two conducting wires, one is a plus wire and the other is a minus wire.
- Patent Documents 5 and 6 disclose drawings in which two cables protrude from the eaves side of the solar cell module. In the configurations disclosed in Patent Documents 5 and 6, the two cables are both single-core, and the solar cell modules are connected in series.
- Patent Document 5 Even the configuration described in Patent Document 5 is housed on the back surface of its own solar cell module or the back surface of the solar cell module in the same row (same stage) as disclosed in FIGS.
- a solar cell module is arrange
- most of the cables are arranged on the back surface of the own solar cell module.
- Patent Document 7 discloses a configuration in which two cables extend from the ridge side of the solar cell module. In the configuration disclosed in Patent Document 7, the wiring is performed at a part different from the part where the solar cell modules are arranged.
- each of the two cables is a single core, and the solar cell modules are connected in series.
- the invention described in Patent Document 8 is characterized by using a flat connector.
- the main body portion has a flat plate shape, and a flat connector is disposed on the bottom thereof.
- the solar cell module disclosed in Patent Document 8 is rectangular, and the two cables extend outward from the short side.
- the work of laying the solar cell module on the roof of a house is a high place work, and it is performed in a harsh environment that is hot in summer and cold in winter.
- the work of laying the solar cell module on a roof or the like requires not only the above harsh work environment but also the accuracy that the wiring must be free from errors. Therefore, the work of laying the solar cell module on the roof of a house has a problem that work efficiency is poor.
- the length of the two cables that are electrically connected is substantially equal, and the cable is prevented from having an excessive portion.
- the length of the cable is adjusted, a cable that is not so long is forcibly bent, so that wiring is performed at an intermediate portion between them. For this reason, stress due to bending greatly acts on a connection portion with a connector attached to each cable, a connection portion between each cable and a terminal box, and the like, and there is a possibility that disconnection is likely to occur.
- the cables disclosed in Patent Documents 2 and 3 both connect adjacent solar cell modules in parallel, each having two plus-side conductors and two minus-side conductors, and four conductors.
- the total volume of the cable is large.
- the cables disclosed in Patent Documents 2 and 3 are configured to be connected on the back side of the own solar cell module as described above. That is, when the solar cell module is installed on the roof, in many cases, the solar cell module is arranged in a matrix over a number of stages, and is installed with a planar spread. More specifically, the solar cell modules are arranged in a row in parallel with the eaves and the building, but the rows are arranged not only in one row but in a plurality of stages.
- the solar cell modules are connected to each other in the same row (left and right toward the roof) with cables, but the cables disclosed in Patent Documents 2 and 3 Are connected to the cables of the solar cell modules adjacent to the left and right through the back side of the left and right boundary lines between the solar cell modules. That is, the cable extends in the left-right direction toward the roof and is connected to the cables of other solar cell modules installed on the left and right, so the cable is always under the row of its own solar cell modules, never jump out of the line. Therefore, it is forced to create a gap between the back surface of the solar cell module and the roof portion of the building in a state where the solar cell module is lifted or inclined, and to connect the cable through the narrow gap. For this reason, the work of laying the solar cell module on the roof or the like of the house is inefficient.
- the present invention focuses on the above-described problems of the prior art, and provides a solar cell module, a solar cell module laying structure, and a solar cell module laying method with less work mistakes and high work efficiency.
- a solar cell module provided to solve the above-described problem has a long solar cell panel in which a plurality of solar cells are electrically connected in series and formed in a substantially rectangular plane, and two or more conductive wires.
- a first cable and a second cable made of different cables, a first connector attached to an end of the first cable, and an end of the second cable to be fitted and connected to the first connector
- Two sets of connectors comprising a second connector, two positive conductors electrically connected to the positive electrode of the solar cell panel, and two negative conductors electrically connected to the negative electrode of the solar cell panel
- the first cable is arranged in the same insulating tube with two conductors comprising one of the two plus conductors and one of the two minus conductors.
- the second cable is a cable in which two conductors composed of the other of the two plus-side conductors and the other of the two minus-side conductors are arranged in the same insulating tube. .
- the solar cell module is a solar cell panel in which a plurality of solar cells are electrically connected in series to form a substantially rectangular surface, and electrically connected to the positive electrode of the solar cell panel.
- the first cable and the second cable which are made of cables having different lengths and having two or more conductors, and a positive electrode connection terminal that is electrically connected, a negative electrode connection terminal that is electrically conductive to the negative electrode of the solar cell panel
- Two sets of connectors comprising a first connector attached to the end of the first cable and a second connector attached to the end of the second cable and capable of being fitted and connected to the first connector, and the plus Two positive conductors connected to the side electrode connection terminal and two negative conductors connected to the negative electrode connection terminal, the first cable ,
- a cable in which two conductors composed of one of the two plus conductors and one of the two minus conductors are arranged in the same insulating tube
- the second cable is the two conductors
- One of the first connector and the second connector is provided with a positive terminal on the male piece and a negative terminal on the female piece.
- One connector and the other connector It is characterized in that the negative electrode side terminal provided in the male piece, is provided with a positive terminal on the female piece.
- the above-described solar cell module can quickly determine whether the connector attached to the cable is the first connector or the second connector according to the length of the cable. Therefore, the above-described solar cell module allows an operator to quickly select an appropriate connector, and has fewer wiring errors and higher work efficiency than the conventional solar cell module.
- the first and second cables are each composed of a cable having two or more conductors such as a two-core cable, and the number of cables can be minimized. Therefore, the above-described solar cell module has simple electrical wiring when installed on a roof or the like, and can avoid inconveniences such as the cable being caught in an unexpected place and being disconnected.
- the above-described solar cell module employs a bundle of two conducting wires as the first and second cables, and has high rigidity. Therefore, the above-described solar cell module is unlikely to break the first and second cables.
- the second cable is longer than the first cable, and the degree of freedom in handling the second cable is high. Therefore, the above-described solar cell module can be constructed without bending the first cable so much by routing the second cable with freedom to the first cable side. The stress due to the bending that acts on the surface does not increase so much. Therefore, the solar cell module can be easily constructed without taking the first and second cables longer than necessary, and troubles such as disconnection of each cable hardly occur.
- the solar cell module is substantially rectangular, and both the first cable and the second cable are extended outward from the side in the longitudinal direction of the solar cell module, and the length of the solar cell panel in the longitudinal direction is extended.
- L1 is the length L4 in the short direction of the solar cell panel
- the length X of the portion extending toward the outside of the second cable is longer than (L1 / 2) and longer than L4.
- the length Y of the portion of the first cable extending toward the outside is shorter than the length of the second cable and shorter than (L1 / 2).
- the solar cell module is substantially rectangular, and the first cable and the second cable are both extended outward from the sides in the longitudinal direction of the solar cell module. This can be done outside the battery module area. And after connecting a cable, the solar cell module of an adjacent stage can be mounted on the cable connected previously by installing the solar cell module which belongs to an adjacent stage. In addition, by satisfying the above-described formula, the solar cell module can be connected to the adjacent solar cell module. As described above, when the solar cell module is installed on the roof, in many cases, the solar cell module is arranged in a matrix over a number of stages, and is installed with a planar spread.
- the length X of the second cable is longer than the length Y of the first cable, but the length X of the longer second cable is longer than the length L4 in the short direction of the solar cell panel.
- the second cable can dive on the back side of the solar cell module in the adjacent stage and can extend outside the solar cell module in the adjacent stage. Therefore, it can also be electrically connected to the adjacent solar cell modules. Since the length X of the second cable is 50% or more of the length L1 in the short direction of the solar cell module, it can be connected to the cables of the solar cell modules adjacent to the left and right.
- the length X is preferably longer than the sum of (L1 / 4) and L4 and shorter than the sum of ((L1 / 4) ⁇ 3) and L4.
- the length Y is preferably shorter than the length L2 in the short direction of the solar cell module. Further, the recommended length Y is shorter than L4.
- the first cable is not connected to the adjacent solar cell module, and incorrect wiring is performed. Can be prevented.
- the length Y of the first cable is shorter than the length L4 in the short direction of the solar cell panel, erroneous wiring can be prevented more reliably.
- first connector and the second connector have different patterns or colors or their coupling.
- the solar cell module allows the operator to quickly determine the type of the connector by confirming the shape, pattern, or color of the connector or their combination (hereinafter also simply referred to as “form”). . Therefore, the solar cell module of this configuration allows an operator to quickly select an appropriate connector, and has fewer wiring errors than the conventional solar cell module, and has high work efficiency.
- the pattern, color, or combination of the first cable and the second cable are different.
- the solar cell module allows the solar cell module to quickly determine the type of connector attached to the cable by the operator confirming the cable pattern, color, or combination thereof. Therefore, the solar cell module of this configuration allows an operator to quickly select an appropriate connector, has fewer wiring errors than the conventional solar cell module, and has high work efficiency.
- the solar cell module may be different in pattern, color, or combination of the plus side conductor and the minus side conductor.
- the solar cell panel has a substantially rectangular shape, and the first cable and the second cable are extended from substantially the center of the long side of the solar cell panel, and the short sides of the solar cell panel are adjacent to each other.
- the first connector of one solar cell module and the first connector of the other solar cell module cannot be connected because the length of the cable is insufficient.
- the connected cables are well-fitted and construction work can be performed easily.
- a groove for inserting the cable in the short direction is provided on the back side of the solar cell module.
- Another invention for solving the same problem is a solar cell module in which a plurality of solar cells are formed inside and constitutes one solar cell as a whole, and has two sets of connectors.
- Each of the connectors includes two or more independent terminals, and each of the two sets of connectors is connected to a cable having two or more conductors extending from the longitudinal center of the solar cell module.
- One terminal is a positive terminal connected to the positive electrode of the solar cell, and the other one terminal of each connector is a negative terminal connected to the negative electrode of the solar cell.
- the cable connected to one of the connectors is shorter than the cable connected to the other connector, and the cable length relationship is shorter when arranged in a line with other solar cell modules.
- the connectors to which the cables are connected are in a state of insufficient length and cannot be connected, the connector to which the long cable is connected and the connector to which the short cable is connected are joined, and both are joined. In this state, the positive electrode side terminals and the negative electrode side terminals of both connectors are connected to each other, and the solar cell module is electrically connected to other solar cell modules in parallel.
- the long cable goes to the outside of the adjacent solar cell module through the back side of the adjacent solar cell module, and the connector to which the long cable is connected and the short cable of the adjacent solar module is connected. It is desirable that can be connected.
- the short cable has a length that cannot reach the outside of the adjacent solar cell module through the back surface side of the adjacent solar cell module.
- the connector of the adjacent solar cell module is joined to the connector to which the long cable is connected and the connector to which the short cable is connected.
- a state where the connector to which the long cable is connected and the connector to which the short cable is connected is joined is a regular joined state.
- the solar cell module of the present invention when connecting a long cable connector and a short cable connector when connecting to adjacent solar cell modules, the positive electrode side terminals and the negative electrode side terminals of both connectors are connected to each other. As a result, a plurality of solar cell modules are electrically connected in parallel.
- the operator does not misconnect the connector. That is, since the above-described solar cell modules have short and long cable lengths, when arranged in a line with other solar cell modules, the connectors to which the short cables are connected are in a state of insufficient length and connected. I can't let you. Therefore, when a solar cell module is laid on the roof or the like, short cables of adjacent solar cell modules cannot be physically connected to each other, and an operator does not erroneously connect the connectors.
- each of the solar cell modules is disclosed in Patent Document 3 (Japanese Patent Application Laid-Open No. 2008-130902) exemplified as the prior art.
- the rigidity of each cable is higher than the case where cables are provided separately for each system. Therefore, the above-described solar cell module is unlikely to break each cable.
- the cable length is not uniform as disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 2004-349507) exemplified as the prior art. Therefore, in the above-described invention, the flexibility of handling the longer cable is high.
- the solar cell module can bend a long cable with freedom and route it toward the short cable, so that excessive stress is not applied to the base end of the long cable and the connection part with the connector. . Further, when cables having different lengths are connected in this way, the longer cable reaches the vicinity of the shorter cable, and therefore it is not necessary to forcibly bend the shorter cable. Therefore, the above-described solar cell module can be easily constructed without taking each cable longer than necessary, and troubles such as disconnection of each cable hardly occur.
- the solar cell module described above is characterized in that the cables connected to one and the other of the two sets of connectors are cables each having two conductors arranged in the same insulating tube. There may be.
- each cable is a cable in which two wires are combined and placed in the same insulating tube
- Patent Document 3 Japanese Patent Laid-Open No. 2008-130902
- the rigidity of the cable is high and the possibility of disconnection is low.
- the rigidity of the cable is increased, there is a possibility that the stress acting on the base end portion of the cable and the connection portion with the connector is increased by bending the cable.
- the length of the cable is not uniform as disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 2004-349507), and one cable is long and the other cable is short.
- ⁇ It is desirable that the two sets of connectors have the same structure but different colors.
- the two sets of connectors employed in the present invention have the same structure, they can be molded using a mold having the same structure.
- the two sets of connectors employed in the solar cell module of the present invention have the same structure, they cannot be distinguished by just looking at the structure.
- the operator can intuitively determine which connector to connect without having to look at the connector structure and the like. Can be grasped. Therefore, according to the solar cell module of the present invention, the operator can instantaneously determine the connector to be connected, and the occurrence of erroneous connection can be reliably prevented. Moreover, even if there is an erroneous connection of the connector, the operator can easily find this by visual recognition.
- the invention provided based on such knowledge is a solar cell module characterized in that the longer cable is different in color from the shorter cable.
- the operator can intuitively determine whether the cable is long or short simply by looking at the color of the cable.
- the longer cable is 50% or more of the total length of the solar cell module, and the shorter cable is less than 50% of the total length of the solar cell module.
- any one of the above-described solar cell modules is arranged in a plurality of rows, and the first connector as one of the two sets of connectors and the second connector as the other are respectively positive electrodes
- the adjacent solar cell module is electrically connected by connecting the same-polarity terminals of the first connector of one adjacent solar cell module and the second connector of the other solar cell module. Are connected in parallel to form a series of solar cell blocks.
- the above-described laying structure of the solar cell modules is such that the adjacent solar cell modules are electrically connected in parallel only by connecting the first connector of one adjacent solar cell module and the second connector of the other solar cell module. Can work easily. Moreover, even if the current that can be generated by one solar cell module is small, the solar cell module laying structure of the present invention allows a plurality of solar cell modules to be connected in parallel. Capacity can be secured.
- the solar cell module laying structure described above can secure a desired voltage by connecting a plurality of solar cell blocks in series even when the voltage of one solar cell block is low.
- the laying structure of the solar cell module includes two solar cell blocks, and the lead-in cable includes a first series connector connected to an unused first connector of one solar cell block, and the other solar cell.
- a second series connector connected to an unused second connector of the battery block, an output connector for outputting electric power converted by the solar cell panel, and two positive and negative conductors connected to the first series connector
- a first outdoor cable including: a second outdoor cable including two positive and negative conductors connected to the second series connector; and an indoor side cable including two positive and negative conductors connected to the output connector;
- One of the first outdoor cables is connected to a conductor of which the second outdoor cable is different in polarity, and the other conductor of the first outdoor cable is connected to the indoor cable.
- Positive and negative Le is connected to the same wire, it may be characterized in that the remaining conductors of the second outdoor cable and the rest of the conductors of the shop inner cable is connected.
- first series connector and the second series connector have different patterns or colors or their combination.
- the present invention has few wiring errors and high work efficiency.
- first outdoor cable and the second outdoor cable have different patterns, colors, or combinations thereof.
- the present invention has less wiring misconnection and high work efficiency.
- the solar cell module which is substantially rectangular and has a plurality of solar cells formed therein and constitutes a single solar cell as a whole.
- the solar cell module has two sets of connectors, each of the two sets of connectors having two or more independent terminals, and the two sets of connectors are Both are connected to a cable having two or more conductors extending from the center in the longitudinal direction of the solar cell module to the outside of the solar cell module, and one terminal of each connector is connected to the positive electrode of the solar cell, The other terminal of the connector is connected to the negative electrode of the solar cell, and the cable connected to one of the two sets of connectors is The length of the cable is shorter than the cable connected to the other connector, and when the solar cell modules are arranged in a row, the connectors to which the short cable is connected are in an insufficient length state and are connected.
- the solar cell modules are arranged in a line on the structure, and the connectors of the adjacent solar cell modules are the connectors to which the long cables are connected and the connectors to which the short cables are connected. Joined outside the row of modules, and in a state where both are joined, the positive terminals and the negative terminals of both connectors are connected, and a plurality of solar cell modules are electrically connected in parallel. This is a laying structure of the solar cell module.
- the operator does not misconnect the connector.
- the connectors to which the short cables are connected are not sufficiently long. There is no connection. Therefore, when a solar cell module is laid on the roof or the like, short cables of adjacent solar cell modules cannot be physically connected to each other, and an operator does not erroneously connect the connectors.
- the solar cell modules are electrically connected to each other by using a cable in which two or more conductors are combined. Therefore, the rigidity of each cable is higher than that in the case where cables provided separately for each system are employed as disclosed in Patent Document 3 (Japanese Patent Laid-Open No. 2008-130902) exemplified as the prior art. . Therefore, in the above-described laying structure of the solar cell module, the strength of each cable is high, and the possibility of occurrence of problems due to disconnection is low.
- the cable employed in the solar cell module laying structure described above is uniform in the length of each cable as disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 2004-349507) exemplified as the prior art. is not. Therefore, when the above-described solar cell module laying structure is adopted, the longer cable can be freely routed at the time of laying even though the above-described highly rigid cable is adopted. Therefore, when the above-described solar cell module laying structure is adopted, a long cable with freedom is bent in the middle, routed toward the short cable, and both are electrically connected. There is no need to forcibly bend the cable.
- the above-described laying structure of the solar cell module is adopted, excessive stress is not applied to the base end portion of the long cable and the connection portion with the connector. Furthermore, when the above-described solar cell module laying structure is adopted, the cables can be easily routed and electrically connected without taking each cable longer than necessary, so that the workability is excellent.
- the laying structure of the solar cell module is characterized in that the cables connected to one and the other of the two sets of connectors are cables in which two conductors are arranged in the same insulating tube, respectively. You may do.
- each cable is a cable in which two wires are combined and placed in the same insulating tube
- Patent Document 3 Japanese Patent Laid-Open No. 2008-130902
- the rigidity of the cable is high and the possibility of disconnection is low.
- the rigidity of the cable is increased, the cable may be less likely to be bent, or the stress acting on the base end portion of the cable or the connection portion with the connector may be increased due to the bending.
- the length of the cable is not uniform as disclosed in Patent Document 2 (Japanese Patent Laid-Open No.
- the two sets of connectors included in the solar cell module have the same structure but different colors.
- the two sets of connectors provided in the solar cell module constituting the laying structure of the solar cell module of the present invention have the same structure. Therefore, when laying a solar cell module, it is not possible to distinguish between the two connectors simply by looking at the structure.
- the two sets of connectors described above have different colors. Therefore, when constructing the laying structure of the solar cell module, the operator can intuitively know which connector should be connected as long as attention is paid to the difference in color. Therefore, the solar cell module laying structure according to the present invention is less likely to be erroneously connected due to the operator mistaking the connector. Further, even if the connector is erroneously connected, the operator can easily find it by visual recognition, and it is possible to prevent the laying operation of the solar cell module from being completed while being erroneously connected.
- the longer cable of the solar cell module is different in color from the shorter cable.
- the operator can intuitively determine whether the cable is long or short by simply looking at the color of the cable when laying the solar cell module. Therefore, when the laying structure of the solar cell module of the present invention is adopted, it is possible to intuitively determine whether the cable is long or short by simply looking at the color of the cable, and it is difficult to cause a wiring mistake. .
- the longer cable included in the solar cell module is 50% or more of the total length of the solar cell module, and the shorter cable is 50% of the total length of the solar cell module of the solar cell module. Desirably less than a percent.
- One of the two sets of connectors included in the solar cell module is a first connector, the other is a second connector, and the lead-in cable is an unused first connector or second connector in the solar cell block. It is desirable that the terminal protection member is attached to the first connector or the second connector that is not connected.
- terminals that are not connected to other connectors are also exposed to the outside, and dust and water can be effectively prevented from adhering to the terminals.
- the solar cell module is provided with a gap for accommodating the connected cable and connector on the back surface side, and a plurality of rows of solar cell modules are arranged in a plurality of stages so that the solar cell module is planar.
- the long cable and the short cable of the solar cell modules adjacent to each other in a row are connected, and the long cable and the short cable are adjacent to each other. It is desirable to be accommodated in the gap.
- the connection between the cables can be performed outside the area of the solar cell module, and after connecting the cable, by installing the solar cell module belonging to the adjacent stage,
- the cable connected previously can be accommodated in the space
- a plurality of rows of solar cell modules are arranged in a plurality of stages so that the solar cell modules are distributed in a plane.
- the longer cable is extended to the right side toward the roof and the right side Connect to the shorter cable of the solar panel adjacent to the cable, and in the stage adjacent to this, extend the longer cable to the left side toward the roof and connect to the shorter cable of the solar panel adjacent to the left side. It is desirable to do.
- the solar cell module located at the end of the row is such that the longer cable passes through the bottom surface of the adjacent step solar cell module and appears outside the adjacent step solar cell module, and the end of the adjacent step row It is desirable to be connected to the shorter cable of the solar cell module located in the section.
- the longer cable of the solar cell module located at the end of the row and the shorter cable of the solar cell module located at the end of the adjacent row of rows It is desirable that the battery module is accommodated in the gap.
- the invention relating to a method for laying a solar cell module is the laying of the laying structure, in which one of the two sets of connectors included in the solar cell module constituting the laying structure is a first connector and the other is a second connector.
- a terminal protection member is attached to the unused first connector or second connector when the operation is interrupted.
- the present invention it is possible to provide a solar cell module, a solar cell module laying structure, and a solar cell module laying method with low wiring errors and high work efficiency.
- (A) is a perspective view which shows the solar cell module which implemented this invention, (b), (c) is sectional drawing of the connector of the solar cell module of (a). It is a perspective view which shows the structure of the back surface side of the solar cell module of FIG. It is sectional drawing of the connector of the solar cell module of FIG. It is a flowchart which shows the work procedure of the laying structure of a solar cell module.
- (A) is explanatory drawing which shows the roof of a house
- (b) is explanatory drawing which shows the state which laid the solar cell module on the roof of the house.
- FIG. 1 It is a circuit diagram when a solar cell module is correctly wired. It is a conceptual diagram which shows the laying structure of a solar cell module.
- A is a front view of a lead-in cable
- (b) is sectional drawing of the mold part of a lead-in cable. It is a top view of a terminal protection member.
- (A) is a top view of the connector whose both poles are male pieces
- (b) is a top view of the connector whose both poles are female pieces.
- FIG. 1 It is a perspective view for demonstrating the attachment of the solar cell module to the eaves of the upper surface of the house in the roof structure of this embodiment, (a) shows the state before attachment, (b) is the state after attachment. Indicates. It is a perspective view explaining attachment of the solar cell module after the 2nd step in the roof structure of this embodiment. It is a fragmentary sectional view explaining attachment of the solar cell module after the 2nd step in the roof structure of the present invention. It is a perspective view explaining the cable wiring of the solar cell module in the roof structure of this embodiment. It is a perspective view explaining the relationship between the cable connection of the solar cell module which belongs to the specific stage in the roof structure of this embodiment, and the solar cell module of an adjacent stage.
- the solar cell module 10 is provided with a solar cell panel 12, a front cover 102, a hook metal fitting 84, and the like on a base 82 configured by attaching a reinforcing heat insulating material 90 to a base material 70. Configured.
- the solar cell module 10 of the present embodiment is a tile-type solar cell module applied to the roof R of a newly built or already built house. As shown in FIGS. 1 and 2, the solar cell module 10 includes a solar cell panel 12, a terminal box 14 attached to the back surface of the solar cell panel 12, and two cables 16 and 18 extending from the terminal box 14. And connectors 20 and 22 connected to the cables 16 and 18, respectively.
- the solar cell module preferably has a total length in the longitudinal direction of 920 to 1200 [mm] and a total length in the short direction of 240 to 700 [mm].
- the solar cell panel to be mounted preferably has a length in the longitudinal direction of 900 to 1200 [mm] and a length in the short direction of 230 to 650 [mm].
- the solar cell module 10 is formed in a substantially rectangular surface as shown in FIGS. 1 and 2.
- the battery panel 12 occupies most of the area exposed to the outside when laid. Therefore, the size of the solar cell module 10 is approximately the same as the solar cell panel 12 or slightly larger than the solar cell panel 12.
- the total length LT of the solar cell module 10 is longer than the total length L1 of the solar cell panel 12 by the width of the groove-shaped flange portion 80.
- the solar cell module 10 of the present embodiment has a total length LT in the longitudinal direction smaller than 1200 [mm] in consideration of securing workability of installation work in a house while securing output.
- the solar cell module 10 does not include the lengths of the cables 16 and 18.
- the length L1 of the solar cell panel 12 is set to 900 to 1100 [9001] in consideration of the interval between general scaffolds installed at the time of laying the solar cell module 10 and the ease of handling by a construction worker. mm] range.
- the length (width) L4 in the short direction of the solar cell panel 12 is 250 to 320 [mm].
- the solar cell module 10 normally has a length L2 in the short direction of 240 to 480 [mm] in consideration of the size of a general flat roof tile.
- the length L2 is taken into consideration in order to improve the photoelectric conversion efficiency by minimizing the shaded portion due to the sunshine condition while being approximately the same as the working width of a general flat roof tile. Is adjusted within the range of 280 to 360 [mm].
- the solar cell panel 12 is an integrated solar cell and is formed in a substantially rectangular surface as shown in FIGS.
- a conductive film or a semiconductor film is laminated on a glass substrate, and a plurality of grooves are provided in the glass panel to form a predetermined number of unit cells (solar battery cells). Those connected in series can be used.
- One solar cell panel 12 of this embodiment can obtain a voltage of about 100 volts.
- the solar cell module 10 is laid in a posture in which the longitudinal direction is directed to the row direction of the house and the short side direction is directed to the ridge direction of the house. That is, the solar cell module 10 is arranged in parallel with the eaves and ridges of the house in the longitudinal direction.
- the house is a sloped roof
- the two long sides are up and down and both are arranged parallel to the horizontal
- the two short sides are placed sideways and are inclined along the slope of the roof.
- the terminal box 14 is fixed to the back side of the solar cell panel 12 using an adhesive or the like.
- the terminal box 14 is attached to the lower region at the approximate center of the long side of the solar cell panel 12.
- the terminal box 14 includes a positive electrode connection terminal (not shown) to which the positive electrode of the solar cell panel 12 is connected and a negative electrode connection terminal (not shown) to which the negative electrode of the solar cell panel 12 is connected. Is provided.
- two plus-side conductors 24 hereinafter also referred to as plus-side core wires 24
- Two negative-side conductive wires 26 (hereinafter also referred to as negative-side core wires 26), which are white coated conductive wires, are connected.
- the first cable 16 is formed by bundling one plus side core wire 24 of the two plus side core wires 24 and 24 and one minus side core wire 26 of the two minus side core wires 26 and 26.
- the second cable 18 is formed by bundling the other plus-side core wire 24 of the two plus-side core wires 24 and 24 and the other minus-side core wire 26 of the two minus-side core wires 26 and 26. This is a two-core cable.
- the first cable 16 and the second cable 18 are different in color, and the first cable 16 has a plus-side core wire 24 and a minus-side core wire 26 arranged in a white insulating tube 16a.
- the second cable 18 has a positive core wire 24 and a negative core wire 26 arranged in a black insulating tube 18a.
- first cable 16 and the second cable 18 are long and short, one is long and the other is short. Specifically, the first cable 16 is shorter than the second cable 18.
- the total length of the first cable 16 is less than 50% of the length of the long side of the rectangular solar cell panel 12, and the total length of the second cable 18 is the length of the long side of the solar cell panel 12. 50 percent or more.
- the total length of the first cable 16 and the length of the second cable 18 is longer than the length of the long side of the solar cell panel 12.
- the second cable 18 protrudes from the long side (upper side) 150 on the ridge side of the solar cell module 10 toward the ridge side (upper side).
- the more recommended length X is 50% or more of the length L1 of the solar cell panel 12 and is longer than the length L4 in the short direction of the solar cell panel 12, and the length L1 of the solar cell panel 12 Shorter than.
- the length of the portion extended toward the outside of the second cable 18 when the length L1 in the longitudinal direction of the solar cell panel 12 and the length L4 in the short direction of the solar cell panel 12 are used.
- X is longer than (L1 / 2) and longer than L4.
- the more recommended length X of the second cable 18 is longer than the sum of (L1 / 4) and L4, and shorter than the sum of ((L1 / 4) ⁇ 3) and L4.
- the length X of the second cable 18 may be designed to adopt a length L2 instead of the length L4 in consideration of a connection margin.
- the length X of the portion extending toward the outside of the second cable 18 is (L1). / 2) and longer than L2.
- the more recommended length X of the second cable 18 is longer than the sum of (L1 / 4) and L2, and shorter than the sum of ((L1 / 4) ⁇ 3) and L2.
- the length Y of the part extended toward the outer side of the 1st cable 16 is shorter than the length X of the above-mentioned 2nd cable 18, and is shorter than (L1 / 2). Further, the length Y of the portion extending toward the outside of the first cable 16 is shorter than the length L4 of the solar cell panel 12 in the short direction.
- the length X of the first cable 16 may be designed to adopt a length L2 instead of the length L4 in consideration of a connection margin. That is, the length Y of the portion extended toward the outside of the first cable 16 is shorter than the length L2 of the solar cell module 10 in the short direction.
- a first connector 20 and a second connector 22 are provided at the respective ends of the first cable 16 and the second cable 18.
- the colors of the first connector 20 and the second connector 22 are different, the structure is the same.
- the first connector 20 is white and the second connector 22 is black.
- the first connector 20 and the second connector 22 include a pin-like terminal 28 and a socket-like terminal 30.
- the first connector 20 and the second connector 22 have a female piece 32 and a male piece 34, the pin-like terminal 28 is in the female piece 32, and the socket-like terminal 30 is in the male piece 34. is there.
- a plus-side core wire 24 is joined to the pin-like terminal 28 of the first connector 20, and the socket-like terminal of the first connector 20.
- the negative core wire 26 is joined to 30.
- a minus-side core wire 26 is joined to the pin-like terminal 28 of the second connector 22, and a plus-side core wire 24 is joined to the socket-like terminal 30 of the second connector 22. That is, in the first connector 20, the pin-shaped terminal 28 is a positive electrode and the socket-shaped terminal 30 is a negative electrode. On the other hand, in the second connector 22, the pin-shaped terminal 28 is a negative electrode, and the socket-shaped terminal 30 is a positive electrode. Therefore, the first connector 20 and the second connector 22 are formed by fitting one female piece 32 and the other male piece 34 to connect one pin-like terminal 28 to the other socket-like terminal 30. It is possible to electrically connect the same poles.
- the base material 70 is a substantially rectangular plate material, which is formed by bending one or a plurality of metal plates into a predetermined shape.
- the base material 70 is formed of a single metal plate, it can be easily processed and the manufacturing cost can be suppressed, and a structure having no joining portion can be provided, which is advantageous in terms of strength. It becomes. Therefore, considering these advantages, it is desirable that the base material 70 be formed by bending a single metal plate.
- a side fixing portion 76, a solar cell module 10 disposed adjacent to the ridge side (upper stage), and a stacking portion 78 on which an eaves side end of the general roof tile is stacked are formed.
- a groove-shaped flange 80 is formed on the side of the base material 70. It is preferable to use a metal plate such as a steel plate, aluminum, and stainless steel for the base material 70. In this embodiment, a galvalume steel plate is used.
- the cover attaching portion 72 is a portion to which a front cover 102 described later is attached, and is formed by bending the eaves side end portion of the base material 70 to the back side at a substantially right angle.
- the solar cell arrangement portion 74 is a planar portion on which the solar cell panel 12 is arranged, and is formed to have approximately the same size as the solar cell panel 12. As shown in FIG. 14, an opening 74 a for inserting the terminal box 14 of the solar cell panel 12 is provided in the approximate center of the solar cell arrangement portion 74.
- the solar cell panel 12 is mounted from the surface side of the base material 70, and the terminal box 14, the cables 16, 18 and the connectors 20, 22 have openings 74a as shown in FIG. It is disposed on the back side of the base material 70.
- the ridge side fixing part 76 is a part for fixing the ridge side of the solar cell panel 12 arranged in the solar cell arrangement part 74.
- the ridge-side fixing part 76 is formed by bending the base material 70 at a predetermined position to the front surface side at a substantially right angle, and by bending the base material 70 at the predetermined position from the base end of the rising part 76a.
- the rising portion 76a is a portion where the ridge side end surface of the solar cell panel 12 abuts, and the surface pressing portion 76b covers a part of the surface (light receiving surface) of the solar cell panel 12 and applies a pressing force from the surface side. Part.
- the loading portion 78 is a planar portion formed by folding the base material 70 toward the ridge side at a predetermined position from the base end of the surface pressing portion 76b of the ridge side fixing portion 76. As shown in FIG. 2, a through hole 78 a for attaching a hook 84 to be described later is provided at a predetermined position of the stacking portion 78, and a solar cell module is provided at a predetermined position on the ridge side of the through hole 78 a. A through hole 78b is provided for driving a screw for fixing 10 to the house.
- the loading portion 78 is in a portion excluding the upper surface of the solar cell panel 12.
- the reinforcing heat insulating material 90 is a foamed resin member attached to the back surface of the base material 70 in order to ensure the strength and heat insulating properties of the solar cell module 10.
- the reinforcing heat insulating material 90 extends in the eave direction from both ends of the girder direction reinforcing portion 92 extending in the girder direction along the long side of the base material 70 on the ridge side, and the girder direction reinforcing portion 92 along the short side of the base material 70. And an inclination direction reinforcing portion 94.
- the inclination direction reinforcing portion 94 is a portion that is stacked on the stacking portion 78 or the general roof tile of the solar cell module 10 disposed adjacent to the eave side (lower stage), and is formed thinner than the beam direction reinforcing portion 92. Has been.
- the reinforcement heat insulating material 90 is not attached to the whole back surface of the base material 70, but is arrange
- a terminal box 14 is disposed substantially at the center of the accommodation space 96.
- the accommodation space 96 can accommodate the wired cables 16 and 18.
- the cables 16 and 18 protrude from the long side 150 on the ridge side of the solar cell module 10, and the connectors of the cables 16 and 18 of the solar cell module 10 that are on the same row and adjacent to each other as will be described later. 20 and 21 are connected and the solar cell module 10 is connected in parallel.
- the connection work between the connectors 20 and 21 can be performed on the outer upper portion of the solar cell module 10.
- the cables 16 and 18 (including the connectors 20 and 21) wired in the accommodation space 96 of the solar cell modules 10 in the upper row are accommodated.
- the cables 16 and 18 are inserted through the gap.
- Two cable grooves 98 are provided on the surface of the reinforcing heat insulating material 90 opposite to the surface attached to the base material 70 of the beam direction reinforcing portion 92 as shown in FIG.
- the cable groove 98 penetrates from the ridge side of the reinforcing heat insulating material 90 to the eaves side, and connects the inside and outside of the accommodation space 96.
- One of the cable grooves 98 is a central groove 98a that is disposed substantially at the center of the girder-direction reinforcing portion 92, and the other is a side groove 98b that is disposed on the left and right of the central groove 98a with a predetermined distance from the central groove 98a. , 98b.
- the central groove 98 a and the terminal box 14 are arranged on substantially the same straight line, and the cables 16 and 18 extending from the terminal box 14 pass through the central groove 98 a from the accommodation space 96 to the ridge side. Has been pulled out of.
- the side grooves 98b and 98b are used for wiring with other solar cell modules 10 arranged adjacent to the upper and lower stages.
- FIG. 4 is a flowchart showing an operation procedure for laying the solar cell module on the roof R of the house.
- step 1 When laying the solar cell module 10, first, eaves draining or a predetermined roofing material is attached to the roof R of the house to be laid. In step 1, lines, shapes, and dimensions necessary for the progress of the work are displayed on the roof R. Ink out is performed. In subsequent step 2, vertical piers (sink bars) are attached at predetermined intervals, and in step 3, Hiromiko (tile) and horizontal piers (tiles) are attached. The horizontal piers are attached at predetermined climb intervals. Next, in step 4, after the blow-up preventing metal fitting for preventing the solar cell module 10 from blowing up is attached at a predetermined position, the operation shifts to step 5.
- step 5 the solar cell modules 10 are sequentially attached from the eaves side to the ridge side of the roof R, and the adjacent solar cell modules 10 and 10 are connected by cables 16 and 18. More specifically, as shown in FIG. 5, the solar cell modules 10 are attached by forming the row-shaped module stage 36 by adjoining the short sides of the plurality of solar cell modules 10, and using the screws or the like. Is fixed to the roof R. In the present embodiment, the module stage 36 is provided with an even number (14 stages in FIG. 5B) on the roof R.
- the solar cell module 10 is installed in the through-hole 78b of the stacking portion 78 in the construction screw 152 as shown in FIG. Is fixed to the house by being driven. At this time, the cables 16 and 18 of the solar cell module 10 are extended to the ridge side.
- the first connector 20 of one solar cell module 10 and the second connector 22 of the other adjacent solar cell module 10. are connected to each other, the two adjacent solar cell modules 10 and 10 can be electrically connected in parallel. That is, by connecting the white first connector 20 attached to the white first cable 16 and the black second connector 22 attached to the black first cable 18, the adjacent solar cell modules 10, Ten parallel connections are possible. Therefore, the solar cell module 10 of this embodiment connects all the solar cell modules 10 included in the module stage 36 sequentially in parallel by connecting the left and right adjacent solar cell modules 10 and 10 using the cables 16 and 18. (FIG. 8).
- the first cable 16 is formed shorter than the second cable 18 as described above. Therefore, in the solar cell module 10, the operator confirms the length of the cables 16, 18, so that the connectors 20, 22 attached to the cables 16, 18 are the first connectors 20, or the second connectors 22. It can be instantly determined.
- the total length of the first cable 16 is less than 50% of the length of the long side of the rectangular solar cell panel 12, and the total length of the second cable 18 is It is 50% or more of the length of the long side of the solar cell panel 12. Therefore, as shown in FIG. 7, the first connectors 20 and 20 attached to the first cable 16 cannot be connected to each other between the solar cell modules 10 and 10 that are adjacent to each other with their short sides abutted. Therefore, the solar cell module 10 of the present embodiment can reliably prevent erroneous connection between the first connectors 20 and 20 between the adjacent solar cell modules 10 and 10.
- the solar cell module 10 In the solar cell module 10, the second cable 18 is longer than the first cable 16, and the degree of freedom in handling the second cable 18 is high. Therefore, the solar cell module 10 is configured such that the second cable 18 having a high degree of freedom is bent in the middle toward the first cable 16, and the two cables 16 are connected via the first connector 20 and the second connector 22. , 18 can be electrically connected. Therefore, the solar cell module 10 includes a connection portion between the first connector 20 and the first cable 16, a connection portion between the second connector 22 and the second cable 18, the terminal box 14 and the first and second cables 16 and 18.
- the stress (stress) caused by bending acting on the connecting portion of the cable is small, problems such as disconnection hardly occur, and the first and second cables 16 and 18 do not need to be excessively long. Moreover, since the solar cell module 10 does not need to take the 1st cable 16 and the 2nd cable 18 too long, it is excellent in workability, and the space etc. for accommodating these cables 16 and 18 are also required. And not.
- the rigidity of the cables 16 and 18 is high. Moreover, the solar cell module 10 can be electrically connected only by connecting the two cables 16 and 18, and the number of cables can be minimized. Moreover, the solar cell module 10 has a simple wiring and is less likely to cause inconveniences such as disconnection of the cables 16 and 18 during installation.
- the first cable 16 is white and the second cable 18 is black. Therefore, the solar cell module 10 allows the operator to easily determine the types of the connectors 20 and 22 attached to the cables 16 and 18 by confirming the colors of the cables 16 and 18.
- the first connector 20 is formed in white and the second connector 22 is formed in black, and the first connector 20 and the second connector 22 are different in color. Therefore, in the solar cell module 10 of the present embodiment, the operator can quickly determine the types of the connectors 20 and 22 by checking the colors of the connectors 20 and 22 of the solar cell module 10. Therefore, the solar cell module 10 according to the present embodiment allows a worker to select an appropriate connector quickly, has few wiring misconnections, and has high work efficiency.
- the 1st cable 16 and the 2nd cable 18 have protruded outside from the ridge side center of the solar cell module 10 like FIG. 1 in the solar cell module 10, in the state which fixed the solar cell module 10 to the roof
- the cables 16 and 18 can be connected. That is, even if the solar cell module 10 of this embodiment is fixed to the roof with a nail or the like, the first cable 16 and the second cable 18 are outside the main body portion of the solar cell module 10 as shown in FIGS. Out. Therefore, in this embodiment, after fixing the solar cell module 10 to a roof with a nail etc., it can connect.
- the cables 16 and 18 are connected for each stage.
- the solar cell module 10 since the solar cell module 10 is attached from the eaves side, the solar cell module 10 is first fixed to one step at the eave or the step in the vicinity of the eaves, and then protrudes to the ridge side of each solar cell module 10.
- the cables 16 and 18 are connected sequentially. By doing in this way, a wiring mistake and a connection mistake can be reduced rather than the method of connecting for every module.
- One connection operation is performed on the upper side of the solar cell modules 10 arranged in a row at the corresponding stage, and the connected cables 16 and 18 are the solar arranged in the row at the corresponding stage as shown in FIG. It is placed on the upper side of the battery module 10. Subsequently, the second-stage solar cell module 10 is fixed.
- the second-stage solar cell module 10 is placed on the stacking portion 78 of the first-stage solar cell module 10 on the eaves side. Therefore, the second-stage solar cell module 10 is covered on the cables 16 and 18 of the first-stage solar cell module 10 as shown in FIG. 20, and the first-stage solar cell module 10 is accommodated in the housing space 96 of the second-stage solar cell module 10. The cables 16 and 18 of the solar cell module 10 are accommodated.
- the solar battery module 10 is attached to the module stage 36 in the second and subsequent stages by placing the front cover 102 of the solar battery module 10C arranged in the upper stage on the eaves side.
- the locking piece 108 of the front cover 102 of 10C is formed in a gap 156 generated between the engaging portion 88 of the hook metal fitting 84 of the solar cell module 10D arranged in the lower stage and the surface of the stacking portion 78 of the base material 70.
- the solar cell module 10C is pulled up to the ridge side, and the solar cell module 10C and the solar cell module 10D are engaged with each other.
- the sealing member 154 is attached to the locking piece 108 of the solar cell module 10 ⁇ / b> C, and the locking piece 108 is inserted into the gap 156 between the engaging portion 88 of the hook metal 84 and the base material 70. Since the sealing material 154 is disposed in the gap 156 without a gap, rattling at the engaging portion between the solar cell module 10C and the solar cell module 10D is prevented.
- the cables 16 and 18 of the lower solar cell module 10D are connected to the upper solar cell module 10D.
- the cables 16 and 18 of the lower solar cell module 10D are accommodated in an orderly manner in the storage space 96 of the main body.
- the upper solar cell module 10C extends the cables 16 and 18 to the building side.
- the construction screw 152 is driven into the through hole 78b of the stacking portion 78 and fixed to the house.
- the solar cell modules 10 and 10 adjacent to the left and right are connected by cables 16 and 18 in the same procedure as the first module stage 36.
- all the solar cell modules 10 included in the module stage 36 can be connected in parallel.
- the laying structure 100 of the solar cell module 10 of the present embodiment includes an odd-numbered module level 36a, 36c and an even-numbered module level 36b, 36d from the eaves side (lower side).
- the connection order of the cables 16 and 18 is reversed left and right. That is, the odd-numbered module stages 36 a and 36 c connect the second connector 22 of the right solar cell module 10 and the first connector 20 of the left solar cell module 10, and connect the second cable 18 and the first The cable 16 is connected.
- the even-numbered module stages 36b and 36d are connected to the first cable 16 by connecting the first connector 20 of the right solar cell module 10 and the second connector 22 of the left solar cell module 10. The second cable 18 is connected.
- the solar cells disposed at both ends of the plurality of solar cell modules 10 constituting the module stage 36 are connected by the cables 16 and 18, as shown in FIG. 6, the solar cells disposed at both ends of the plurality of solar cell modules 10 constituting the module stage 36.
- the first connector 20 of one solar cell module 10 is unused (unconnected), and the second connector 22 of the other solar cell module 10 is unused.
- These unused first connector 20 and second connector 22 are used for electrical connection of the module stages 36 and 36 arranged above and below.
- the odd-numbered module levels 36a and 36c and the even-numbered module levels 36b and 36d are connected to form solar cell blocks 38a and 38b.
- the solar battery module 10a, 10c disposed at the left end of the odd-numbered module stages 36a, 36c is a solar cell disposed at the left end of the even-numbered module stages 36b, 36d.
- the back surfaces of the solar cell panels 12 of the modules 10b and 10d are passed through, and the second connectors 22 of the solar cell modules 10a and 10c and the first connectors 20 of the solar cell modules 10b and 10d are connected.
- the two cables 18 of the lower solar cell modules 10a and 10c are connected to the first cables 16 of the upper solar cell modules 10b and 10d, as described above,
- the two cables 18 are passed through the back surface of the solar cell panel 12.
- the insertion route of the second cable 18 at this time is as shown in FIGS. 21 and 22, and passes through one of the side grooves 98b and 98b through the accommodation space 96 of the solar cell modules 10b and 10d.
- the front end side of the 2nd cable 18 is made to protrude further to the upper stage side of the upper stage side solar cell modules 10b and 10d, and is connected with the first cable 16 of the upper stage side solar cell modules 10b and 10d.
- the longer one of the two cables 16 and 18 (second cable 18) is used for the solar cell. Modules 10 are connected in parallel.
- the second cable 18 when the length X of the longer cable (second cable 18) is longer than the length L4 in the short direction of the solar cell panel 12, the second cable 18 is The solar cell module 10 belonging to the module stage 36 adjacent to the upper side of the roof can be submerged and extended further to the upper side of the solar cell module 10 belonging to the module stage 36 adjacent to the upper side.
- the second cable 18 when the length X of the longer cable (second cable 18) is longer than the length L2 in the short direction of the solar cell module 10, the second cable 18 is connected to the upper side of the roof.
- the solar cell module 10 belonging to the module stage 36 adjacent to the bottom of the solar battery module 10 belongs to the module stage 36, and extends further to the upper side of the solar cell module 10 belonging to the module stage 36 adjacent to the upper side so that it can be easily connected to other cables. Furthermore, in practice, as shown in FIG. 22, the space through which the cable 18 is inserted is limited, and the solar cell modules 10 are arranged in a staggered manner, so that the length X of the second cable 18 is the solar cell. The module 10 needs to be somewhat longer than the length L2 in the short direction. In the configuration shown in FIG. 22, the second cable 18 goes under the solar cell module 10 through the side groove 98 b provided in the reinforcing heat insulating material 90.
- the solar cell modules 10 belonging to the adjacent stages are arranged so as to be shifted by a length a. Furthermore, the length of the overlapping part of the solar cell modules 10 of the adjacent stage placed on the stacking portion 78 of the upper stage solar cell module 10 is b.
- the length of the second cable 18 is (L1 / 4) plus a
- the required length in the vertical direction is L2 minus b. Therefore, the required length of the second cable 18 is ((L1 / 4) plus a) plus (L2 minus b).
- L2 minus b is substantially equal to the length L4 of the solar battery panel 12 in the short direction. Therefore, the required length of the second cable 18 is ((L1 / 4) plus a) plus L4.
- 23 to 25 show the required length of the cable 18 by changing the shift amount a of the solar cell modules 10 belonging to adjacent stages. 23 to 25, the longer the amount of displacement a, the longer the cable 18 is required. However, when the amount of displacement reaches 3/4 of the total length L1 of the solar cell panel 12, the longest cable 18 is used. Is required, and its length is the sum of ((L1 / 4) ⁇ 3) and L4. Further, considering the connection margin, it is the sum of ((L1 / 4) ⁇ 3) and L2.
- the length of the cable 18 is preferably equal to or less than the sum of ((L1 / 4) ⁇ 3) and L4, and considering the connection allowance, is preferably equal to or less than the sum of ((L1 / 4) ⁇ 3) and L2.
- the length Y of the part extended toward the outer side of the 1st cable 16 is shorter than the length X of the above-mentioned 2nd cable 18, and is shorter than (L1 / 2). Furthermore, the length Y of the part extended toward the outer side of the 1st cable 16 is shorter than the length L4 of the transversal direction of a solar cell panel. Therefore, the first cable 16 cannot pass under the upper solar cell module 10 and is not erroneously connected. In actuality, a margin for connection is necessary, and therefore, when the solar cell module 10 is shorter than the length L2 in the short direction, there is no erroneous connection.
- connection of the two cables 16 and 18 when the solar cell module 10 constituting the solar cell block 38 extends over a plurality of stages can be performed outside the solar cell module 10, workability is improved. high.
- the two connected cables 16 and 18 are accommodated in the accommodation space (gap part) 96 of the solar cell module 10 of one step as shown in FIG.
- all the solar cell modules 10 included in the module stage 36a and the module stage 36b are connected in parallel to form the solar cell block 38a. Further, all the solar cell modules 10 included in the module stage 36c and the module stage 36d are also connected in parallel to form a solar cell block 38b.
- the solar cell blocks 38 a and 38 b formed as described above are electrically connected in series by the lead-in cable 40.
- the lead-in cable 40 is connected to the first series connector 42 connected to the first connector 20 of the solar cell module 10 and the second connector 22 connected to the second connector 22 of the solar cell module 10.
- Two serial connectors 44 an output connector 46 that is connected to an indoor power conditioner (not shown) and outputs power converted by the solar cell panel 12 of the solar cell module 10, and a first serial connector 42.
- the first series connector 42, the second series connector 44, and the output connector 46 have the same structure as the first connector 20 and the second connector 22 of the solar cell module 10.
- the first series connector 42 and the output connector 46 are black, and the second series connector 44 is white.
- the first outdoor cable 48, the second outdoor cable 50, and the indoor cable 52 are the plus side core wires 24 in the insulating tubes 48 a, 50 a, 52 a, similarly to the first cable 16 and the second cable 18 of the solar cell module 10. And one minus side core wire 26 is arranged.
- the insulation tubes 48a and 52a of the first outdoor cable 48 and the indoor cable 52 are black, and the insulation tube 50a of the second outdoor cable 50 is white.
- a white vinyl tape 56 is wound around the output connector 46 of the indoor cable 52. As a result, the indoor cable 52 and the output connector 46 can be discriminated instantaneously.
- a first outdoor cable 48, a second outdoor cable 50, and an indoor cable 52 are connected. More specifically, the plus side core wire 24 of the first outdoor cable 48 and the minus side core wire 26 of the second outdoor cable 50 are electrically connected, and the minus side core wire 26 of the first outdoor cable 48 and the indoor side cable 52 are connected. The negative side core wire 26 is electrically connected, and the positive side core wire 24 of the second outdoor cable 50 and the positive side core wire 24 of the indoor side cable 52 are electrically connected.
- the white second series connector 44 of the lead-in cable 40 constitutes the solar cell block 38a.
- the black first series connector 42 of the lead-in cable 40 is connected to the white first connector 20 of the solar cell module 10g at the right end of the module stage 36c constituting the solar cell block 38b.
- connection between the lead-in cable 40 and the solar cell blocks 38a and 38b may be made by connecting connectors of different colors, similarly to the connection between the adjacent solar cell modules 10 and 10, resulting in incorrect wiring connection. Hateful. Further, as described above, the connection of the lead-in cable 40 to the solar cell blocks 38a, 38b is simply a predetermined connector 44, 22, 42, 20 connected in a predetermined combination. It can be performed.
- the solar cell blocks 38a and 38b of the present embodiment are ones in which a plurality of solar cell modules 10 capable of obtaining a voltage of about 100 volts are connected in parallel. Therefore, the voltage obtained from the entire solar cell blocks 38a and 38b is also about 100 volts. Therefore, the laying structure 100 of the solar cell module 10 of the present embodiment can obtain a voltage of about 200 volts, which is the rated voltage of various devices, by connecting the two solar cell blocks 38a and 38b in series. is there.
- a plurality of solar cell modules 10 are connected in parallel by connecting the solar cell modules 10 defined in the present application using the first cable 16 and the second cable 18 and connecting them with the lead-in cable 40.
- Solar cell solar cell blocks 38a and 38b can be made, and the two sets of solar cell blocks 38a and 38b can be connected in series.
- the above-described operation is simple and simple, and does not cause erroneous wiring, and many solar cell modules 10 can be laid on the roof.
- An output of approximately 200 [V] can be obtained from the output cable 52 of the lead-in cable 40.
- the wiring work can be carried out without a skilled electrician, for example, the wiring work can be easily completed by the hands of a high-level work expert such as a roof tiler or a carpenter.
- the voltage of 200 [V] or more can be generated by increasing the number of solar cells 100 of the solar cell panel 12 of the solar cell module 10 or the like. For example, a voltage of 200 [V] to 360 [V] can be generated.
- the terminal protection member 58 shown in FIG. 11 is attached to these connectors 16 and 18.
- the terminal protection member 58 has substantially the same structure as the first connector 20 and the second connector 22 of the solar cell module 10 except that the cable is not connected.
- dust and water adhere to the terminals 28 and 30 of the unused connectors 20 and 22 by attaching the terminal protection member 58 to the unused connectors 20 and 22. Can be prevented.
- step 5 in FIG. 4 When the work in step 5 in FIG. 4 is completed as described above, the worker pulls in the indoor cable 52 of the lead-in cable 40 into the house in step 6. After that, construction of the surrounding tiles is performed (Step 7), and after the cleaning of the roof R (Step 8) is completed, after the inspection (Step 9) is performed, the lead-in cable 40 is bundled indoors (Step 10). Then, the output connector 46 is connected to a connection box of a power conditioner (not shown) (step 11), and a series of operations is completed.
- a power conditioner not shown
- the solar cell module 10 of the above embodiment has the connectors 20 and 22 attached to the ends of the first cable 16 and the second cable 18 by making the colors of the first cable 16 and the second cable 18 different.
- the present invention is not limited to such a configuration.
- the pattern of the first cable 16 and the second cable 18 and the coupling between the pattern and the color may be made different so that the types of the connectors 20 and 22 can be easily identified.
- the first outdoor cable 48 and the second outdoor cable 50 of the lead-in cable 40 the pattern and the coupling between the pattern and the color are different, and the types of the first series connector 42 and the second series connector 44 are different. It may be made easier to discriminate.
- the 1st connector 20 and the 2nd connector 22 differed in color
- this invention is not necessarily limited to such a structure.
- the 1st connector 20 and the 2nd connector 22 should just be the structures which can distinguish a form rapidly by making forms, patterns, etc. differ.
- the first series connector 42 and the second series connector 44 of the lead-in cable 40 may be configured such that the type can be instantaneously determined by different shapes and patterns.
- the first connector 20 and the second connector 22 of the above embodiment are provided with the female piece 32 and the male piece 34, and the type of the terminals 28 and 30 can be discriminated from the respective shapes. It is not limited to the configuration.
- a connector 60 whose both poles are male pieces 64a and 64b and a connector 62 whose both poles are female pieces 66a and 66b may be combined into a set of fitting structures.
- the male piece 64a or female piece 66a
- the male piece 64b or female piece 66b
- one male piece 64b and female piece 66b are formed thicker than the other male piece 64a and female piece 66a, thereby facilitating discrimination of the poles. This prevents incorrect connection.
- the connectors 60 and 62 also prevent the connectors 60 and 62 from being erroneously connected by providing a groove 68 in one male piece 64b of the connector 60 and one female piece 66b of the connector 62.
- the solar cell panel 12 of the solar cell module 10 of the said embodiment was what can obtain the voltage of about 100 volts by one sheet, this invention is restrict
- the voltage that can be obtained with one solar cell panel 12 is less than 100 volts, by configuring a predetermined number of solar cell blocks 38 and connecting these solar cell blocks 38 in series, In the laying structure 100 of the solar cell module 10, a desired voltage can be secured.
- the solar cell module 10 of this embodiment can be constructed by taking out the cables 16 and 18 toward the ridge side. Therefore, the solar cell module 10 can be easily laid from the eaves side of the house to the ridge side as is generally done when roofing tiles in the house. Therefore, the solar cell module 10 can be easily and orderly installed by, for example, an operator who is not familiar with electrical work.
- the laying structure 100 of the present embodiment employs the solar cell module 10 described above, the cables 16 and 18 can be easily routed at the time of laying, and disconnection due to kinking of the cables 16 and 18 occurs. Hateful. Further, the laying structure 100 of the present embodiment can be constructed by taking out the cables 16 and 18 of each solar cell module 10 toward the ridge side without particularly handling the cables 16 and 18. Therefore, in the laying structure 100 of the present embodiment, the solar cell module 10 is laid from the eaves side of the house toward the ridge side, as is generally done when roofing tiles in a house. Therefore, the cables 16 and 18 can be easily connected to each other.
- the accommodation space 96 provided in the base 82 is surrounded on three sides by the spar direction reinforcing portion 92 and the tilt direction reinforcing portions 94 and 94 of the reinforcing heat insulating material 90. Therefore, it is difficult for wind and rain to enter the housing space 96 from above (building side) and from the left and right in the state of laying in the house, and the terminal box 14 can be prevented from getting wet.
- the solar cell module 10 of the present embodiment can be ventilated through the open portion because the accommodation space 96 is open toward the eave facing side 162 side. Therefore, even if the terminal box 14 becomes high temperature due to energization, heat does not stay in the accommodation space 96 and the inside of the accommodation space 96 can be maintained at an appropriate temperature condition.
- the solar cell module 10 of the present embodiment is provided with a gap 168 around the terminal box 14 in the accommodation space 96. Therefore, the solar cell module 10 of the present embodiment can reliably prevent problems such as the heat generated in the terminal box 14 being trapped in the accommodation space 96 and the terminal box 14 being damaged or damaged by this heat. it can.
- the beam direction reinforcing portion 92 of the reinforcing heat insulating material 90 is made of foamed resin. Therefore, even if the cables 16 and 18 do not pass through the cable groove 98 provided in the girder direction reinforcing portion 92 and are sandwiched between the upper surface of the house and the girder direction reinforcing portion 92, the cables 16 and 18 An excessively large load can be prevented from acting. Therefore, the solar cell module 10 can reliably prevent inconveniences such as disconnection of the cables 16 and 18.
- FIG. 1 is a perspective view of a tile-type solar cell module employed in an embodiment of the present invention.
- FIG. 3 is a cross-sectional view of the connector of the solar cell module of FIG.
- the tile-type solar cell module 10 is an integrated solar cell, and a plurality of solar cells are formed inside to constitute one solar cell as a whole. That is, the tile-type solar cell module 10 is formed by laminating a conductive film or a semiconductor film on a glass substrate, and further providing a plurality of grooves in the glass substrate to divide it into a large number of unit cells (cells), and electrically connecting each cell in series. It is a thing.
- the tile-shaped solar cell module 10 has a rectangular shape as shown in the figure, and two cables 16 and 18 are extended from the central portion in the longitudinal direction. Further, connectors 20 and 22 are connected to the cables 16 and 18, respectively.
- the cables 16 and 18 are long and short, one is long and the other is short. Specifically, the long cable 18 has a total length of 50% or more of the total length of the roof tile-type solar cell module 10, and the short cable 16 has a total length of 50% of the total length of the roof tile-type solar cell module 10. Less than a percent.
- the cables 16 and 18 are different in color.
- Each of the cables 16 and 18 has two systems of electrically conductive wires 24 and 26 (a plus side core wire 24 and a minus side core wire 26). More specifically, it is a cable in which two coated conductors 24 and 26 are arranged in the same insulating tube.
- Connectors 20 and 22 are connected to the two cables 16 and 18, respectively.
- the connectors 20 and 22 are different in color but have the same structure, and have two terminals 28 and 30 (a pin terminal 28 and a socket terminal 30) as shown in FIG.
- one pin-shaped terminal 28 is a pin
- the other socket-shaped terminal 30 is a socket.
- the connectors 20 and 22 have a female piece 32 and a male piece 34, the pin-like terminal 28 is in the female piece 32, and the socket-like terminal 30 is in the male piece 34.
- the connectors 20 and 22 can be connected to each other, and one female piece 32 and the other male piece 34 are joined. At that time, one pin-shaped terminal 28 and the other socket-shaped terminal 30 are connected inside each female piece 32 and male piece 34.
- the two covered conductors 24 and 26 of the two cables 16 and 18 are respectively connected to the positive electrode and the negative electrode of the solar cell (hereinafter simply referred to as a solar cell) in the roof tile solar cell module 10. . That is, one coated conductor 24 in the cable 18 is connected to the positive electrode of the solar cell, and the other coated conductor 26 is connected to the negative electrode of the solar cell. Similarly, one coated conductor 24 in the cable 16 is connected to the positive electrode of the solar cell, and the other coated conductor 26 is connected to the negative electrode of the solar cell. Therefore, one of the two terminals 28 and 30 of the connector 22 is connected to the positive electrode of the solar cell, and the other coated conductor is connected to the negative electrode of the solar cell.
- one of the two terminals 28 and 30 of the connector 20 is connected to the positive electrode of the solar cell, and the other coated conductor is connected to the negative electrode of the solar cell.
- the polarities of the two terminals 28 and 30 of the connectors 20 and 22 are compared, they are opposite to each other. That is, in one connector 20, the pin-shaped terminal 28 is a positive electrode and the socket-shaped terminal 30 is a negative electrode, whereas in the other connector 22, the pin-shaped terminal 28 is a negative electrode and the socket-shaped terminal 30 is a positive electrode. is there.
- FIG. 6 is a conceptual diagram when the tile-type solar cell module is accurately wired.
- FIG. 7 is a conceptual diagram when a tile-type solar cell module is wired incorrectly.
- FIG. 8 is a circuit diagram when the tile-type solar cell module is correctly wired.
- the tile-type solar cell module 10 described above is laid on a structure such as a roof side by side. Then, the connectors 20 and 22 of the adjacent tile type solar cell modules 10 are connected. When attention is paid to one tile-type solar cell module 10, the connector 22 of the tile-type solar cell module 10 and the connector 20 of the tile-type solar cell module 10 on the left are connected.
- the connector 20 of the tile-type solar cell module 10 and the connector 22 of the tile-type solar cell module 10 on the right side are connected. If it demonstrates paying attention to the length of a cable, the connector 22 of the long cable 18 of the said tile type solar cell module 10 and the connector 20 of the short cable 16 of the tile type solar cell module 10 on the left side will be connected. Further, the connector 20 of the short cable 16 of the tile-type solar cell module 10 and the connector 22 of the long cable 18 of the tile-type solar cell module 10 on the right side are connected. As a result, the solar cells are connected in parallel as shown in FIG.
- the other connectors 20 cannot be physically connected, so the operator notices the connection error. It becomes. That is, the other connector 20 is connected to a short cable 16, and the short cable 16 is less than half of the total length of the roof tile solar cell module 10. Moreover, since the cables 16 and 18 are extended from the center part of the tile-shaped solar cell module 10, even if it is going to connect the short cables 16, length is not enough and both cannot be connected. Therefore, the tile-type solar cell module 10 of the present embodiment cannot cause wiring errors.
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Abstract
Description
特許文献3は、太陽電池モジュールに4本のケーブルが接続された構成が開示されている。また特許文献3に開示された構成では、ケーブルに長短がある。さらにケーブルを色違にすることも開示されている。
特許文献3に記載された構成でも、同文献の図7に開示された様に、接続されたケーブルは自己の太陽電池モジュールの裏面または同列(同段)の太陽電池モジュールの裏面に収納される。
特許文献4の図25には、太陽電池パネルの長辺側に導線が延出された構成が開示されている。しかしながら、特許文献4に示された太陽電池モジュールは、導線が短く、且つ太陽電池パネルと基材62の位置関係から考えて、導線が太陽電池モジュールの外に延出されるものではない。
また特許文献4に示された太陽電池モジュールは、導線が2本であり、一方がプラス線であり、他方がマイナス線である。
特許文献5,6には、太陽電池モジュールの軒側から2本のケーブルが出ている図面が開示されている。特許文献5,6に開示された構成は、2本のケーブルはいずれも単芯であって太陽電池モジュール同士を直列接続するものである。
特許文献5に記載された構成でも、同文献の図20,21に開示された様に、自己の太陽電池モジュールの裏面または同列(同段)の太陽電池モジュールの裏面に収納される。
特許文献6では、太陽電池モジュールを平置き状に配置するものであって重ねない。特許文献6についても、大半のケーブルは自己の太陽電池モジュールの裏面に配される。
特許文献7には、太陽電池モジュールの棟側から2本のケーブルが延出した構成が開示されている。特許文献7に開示の構成では、配線は、太陽電池モジュールが配列された部位とは別の部位で行われている。
特許文献8に記載の発明では、太陽電池モジュールの棟側から2本のケーブルが出ており、このケーブルが隣接する段に属する太陽電池モジュールの裏面側で接続された図面が開示されている。特許文献8に開示された構成では、2本のケーブルはいずれも単芯であって太陽電池モジュール同士を直列接続するものである。特許文献8に記載の発明は、偏平な形状のコネクタを使用することを特徴としている。特許文献8に記載された太陽電池モジュールは、本体部分が平板状であり、その底に偏平な形状のコネクタを配置する。
特許文献8に開示された太陽電池モジュールは長方形であり、2本のケーブルはその短手方向の辺から外側に延出されている。
それにも係わらず、特許文献2,3に開示されたケーブルは、前記した様に、自己の太陽電池モジュールの裏面側で接続する構成となっている。
即ち太陽電池モジュールを屋根に設置する場合、多くの場合は多数段に渡って行列状に配され、平面的な広がりを以て設置される。
具体的に説明すると、太陽電池モジュールは、軒及び棟と平行に列状に配されるが、列は一列だけではなく、複数段に渡って並べられる。特許文献2,3に開示された発明では、太陽電池モジュールは、同列上に隣接する(屋根に向かって左右)太陽電池モジュール同士をケーブルで接続するが、特許文献2,3に開示されたケーブルは、いずれも太陽電池モジュール同士の左右の境界線の裏側を通過して左右に隣接する太陽電池モジュールのケーブルと接続される。即ちケーブルは屋根に向かって左右方向に延出し、左右に設置された他の太陽電池モジュールのケーブルと接続されるから、ケーブルは、常に自己の太陽電池モジュールの列の下に有り、太陽電池モジュールの列から飛び出すことはない。
そのため太陽電池モジュールを持ち上げたり、斜め姿勢にした状態で太陽電池モジュールの裏面と建屋の屋根部分との間に隙間を作り、その狭い隙間でケーブルを接続する作業を強いられる。
そのため太陽電池モジュールを家屋の屋根等に敷設する作業は、作業効率が悪い。
前記第二ケーブルが、前記二本のプラス側の導線の他方および前記二本のマイナス側の導線の他方からなる2条の導線を同一の絶縁チューブ内に配したケーブルであることを特徴としている。
また上記した式を満足することにより、太陽電池モジュールを隣接する段の太陽電池モジュールと接続することもできる。
前記した様に、太陽電池モジュールを屋根に設置する場合、多くの場合は多数段に渡って行列状に配され、平面的な広がりを以て設置される。従って、太陽電池モジュールを
電気接続する場合、左右に隣接する太陽電池モジュールだけでなく、隣接する列(隣接する段。傾斜屋根であれば上下。)に属する太陽電池モジュールともケーブルを接続する必要がある。
ここで本発明では、第二ケーブルの長さXが第一ケーブルの長さYよりも長いが、長い方の第二ケーブルの長さXが、太陽電池パネル短手方向の長さL4よりも長い場合は、第二ケーブルは隣接する段の太陽電池モジュールの裏面側を潜り、隣接する段の太陽電池モジュールの外に延出することができる。そのため隣接する段の太陽電池モジュールとも電気的に接続することができる。なお第二ケーブルの長さXは、太陽電池モジュールの短手方向の長さL1の50%以上であるから、左右に隣接する太陽電池モジュールのケーブルと接続することができる。
またさらに推奨される長さYは、L4よりも短い。
その一方で、本発明の太陽電池モジュールで採用されている二組のコネクタは、構造が同一であるため、構造を見ただけでは見分けが付かない。しかし、本発明の太陽電池モジュールでは、前記した二組のコネクタがそれぞれ色違いとされているため、作業者は、コネクタの構造等を見るまでもなく、どのコネクタを接続すれば良いかを直感的に把握することができる。従って、本発明の太陽電池モジュールによれば、接続すべきコネクタを作業者が瞬時に判別でき、誤接続の発生を確実に防止することができる。また、仮にコネクタの誤接続があったとしても、これを作業者が視認により容易に見つけることができる。
また搭載される太陽電池パネルは、長手方向の長さが900乃至1200[mm]であって短手方向の長さが230乃至650[mm]であることが望ましい。
次に太陽電池モジュール10及び太陽電池パネル12の推奨される大きさについて説明する。以下に説明する太陽電池モジュール10及び太陽電池パネル12の推奨される大きさは、図1以下に示す実施例のサイズである。
本実施形態の太陽電池モジュール10は、出力を確保しつつ、家屋への設置作業の作業性を確保することを考慮し、長手方向の全長LTが1200[mm]より小さいものとされている。ただし太陽電池モジュール10にはケーブル16,18の長さを含まない。
本実施形態では、太陽電池モジュール10の敷設施工時に設置される一般的な足場の間隔や、施工作業者の取り回しやすさ等を考慮し、太陽電池パネル12の長さL1が、900~1100[mm]の範囲とされている。
また太陽電池パネル12の短手方向の長さ(幅)L4は、250乃至320[mm]である。
また、太陽電池モジュール10は、通常は、一般的な平板瓦のサイズなどを考慮し、短手方向の長さL2が240~480[mm]の範囲とされている。しかし、本実施形態では、一般的な平板瓦の働き幅と同程度としつつ、日照条件によって陰になる部分を最小限に抑制することで光電変換効率を向上させることに配慮し、長さL2が280~360[mm]の範囲内に調整されている。
即ち太陽電池モジュール10は、長手方向が家屋の軒と棟に対して平行に配される。例えば家屋が傾斜屋根であるとすれば、長手の2辺は上下にあって共に水平に対して平行に配され、短手の2辺は横に配されて屋根の傾斜に沿って傾斜姿勢となる。
またより推奨される長さXは、太陽電池パネル12の長さL1の50パーセント以上であり、且つ太陽電池パネル12の短手方向の長さL4よりも長く、太陽電池パネル12の長さL1よりも短い。
具体的には、太陽電池パネル12の長手方向の長さL1とし、太陽電池パネル12の短手方向の長さL4としたとき第二ケーブル18の外側に向かって延出された部分の長さXは(L1/2)よりも長く且つL4よりも長い。より推奨される第二ケーブル18の長さXは、(L1/4)とL4の合計よりも長く、((L1/4)×3)とL4の合計よりも短いものである。
また第二ケーブル18の長さXは、接続の余裕を考慮し、前記L4に代わってL2を採用した長さに設計してもよい。即ち太陽電池パネル12の長手方向の長さL1とし、太陽電池モジュール10の短手方向の長さL2としたとき第二ケーブル18の外側に向かって延出された部分の長さXは(L1/2)よりも長く且つL2よりも長い。より推奨される第二ケーブル18の長さXは、(L1/4)とL2の合計よりも長く、((L1/4)×3)とL2の合計よりも短いものである。
さらに第一ケーブル16の外側に向かって延出された部分の長さYは、太陽電池パネル12の短手方向の長さL4よりも短い。
また第一ケーブル16の長さXは、接続の余裕を考慮し、前記L4に代わってL2を採用した長さに設計してもよい。即ち第一ケーブル16の外側に向かって延出された部分の長さYは、太陽電池モジュール10の短手方向の長さL2よりも短い。
積載部78は太陽電池パネル12の上面を除く部位にある。
また補強断熱材90の傾斜方向補強部94と家屋との間には隙間があるので、当該隙間にケーブル16,18が挿通される。
その後のステップ2では、縦桟木(流し桟)が所定の間隔で取り付けられ、ステップ3において広小舞(瓦座)や横桟木(瓦桟)が取り付けられる。横桟木は、所定の登り間隔で取り付けられる。次にステップ4において、太陽電池モジュール10が吹き上がるのを防止する吹上防止金具を所定の位置に取り付けた後、作業はステップ5に移行する。
ケーブル16,18の接続は、段ごとに行われる。本実施形態では、軒側から太陽電池モジュール10を取り付けるから、最初に軒又は軒近傍の段に太陽電池モジュール10を一段分全て固定し、その後に、各太陽電池モジュール10の棟側に突出したケーブル16,18を、順次接続する。このようにすることで、1つのモジュール毎に接続する方法よりも、配線ミス・接続ミスを減らすことができる。1つの接続作業は、当該段の列状に並べられた太陽電池モジュール10の上段側で行われ、接続されたケーブル16,18は、図19の様に当該段の列状に並べられた太陽電池モジュール10の上段側に置かれる。
続いて2段目の太陽電池モジュール10を固定する。ここで2段目の太陽電池モジュール10は、軒側を1段目の太陽電池モジュール10の積載部78上に載置される。そのため1段目の太陽電池モジュール10のケーブル16,18上に、図20の様に2段目の太陽電池モジュール10が被さり、2段目の太陽電池モジュール10の収容空間96に1段目の太陽電池モジュール10のケーブル16,18が収容される。
また接続しろを考慮すると、長い方のケーブル(第二ケーブル18)の長さXが太陽電池モジュール10の短手方向の長さL2よりも長い場合は、第二ケーブル18は、屋根の上部側に隣接するモジュール段36に属する太陽電池モジュール10の下を潜り、上部側に隣接するモジュール段36に属する太陽電池モジュール10のさらに上部側に延出して他のケーブルと容易に接続できる。
さらに実際上は、図22の様に、ケーブル18を挿通させる空間が限定されることと、太陽電池モジュール10が千鳥状に配されることから、第二ケーブル18の長さXは、太陽電池モジュール10短手方向の長さL2よりもある程度長くする必要がある。
図22に示す構成では、第二ケーブル18は、補強断熱材90に設けられたサイド溝98bを経て太陽電池モジュール10の下を潜る。また隣接する段に属する太陽電池モジュール10は、長さaだけずらして配されている。
さらに上部側の段の太陽電池モジュール10の積載部78に載置され、隣接する段の太陽電池モジュール10の重なり部分の長さは、bである。
図22に示す例で説明すると、第二ケーブル18の長さは、横引きされる長さが、(L1/4)プラスaであり、縦方向の必要長さは、L2マイナスbである。
そのため第二ケーブル18の必要長さは、((L1/4)プラスa)プラス(L2マイナスb)である。
ここで本実施形態では、L2マイナスbは、太陽電池バネル12の短手方向の長さL4と略等しい。そのため第二ケーブル18の必要長さは、((L1/4)プラスa)プラスL4である。
従ってケーブル18の長さは、((L1/4)×3)とL4の合計以下であり、接続しろを考慮すると((L1/4)×3)とL2の合計以下であることが望ましい。
さらに第一ケーブル16の外側に向かって延出された部分の長さYは、太陽電池バネルの短手方向の長さL4よりも短い。そのため第一ケーブル16は、上段側の太陽電池モジュール10の下をくぐり抜けることができず、誤接続されることがない。
実際には接続しろが必要であるから、太陽電池モジュール10短手方向の長さL2よりも短い場合には、誤接続されることはない。
また屋内側ケーブル52の出力コネクタ46近傍には白色のビニールテープ56が巻き付けられている。これにより屋内側ケーブル52および出力コネクタ46を瞬時に判別することが可能になる。
そのため本発明によると、配線作業を、熟練した電気技術者でなくとも実施することができ、例えば、屋根瓦職人や大工といった高所作業熟練者の手によって簡単に配線作業を完了させることができる。
また太陽電池モジュール10の太陽電池パネル12の太陽電池セル100の数を増加させる等により、200[V]以上の電圧を発生させることができる。例えば、200[V]乃至360[V]の電圧を発生させることもできる。
同様に、引込ケーブル40の第一直列コネクタ42および第二直列コネクタ44についても、形状や模様などの形態を相違させて瞬時に種別を判別することが可能な構成にしてもよい。
図1は、本発明の実施形態で採用する瓦型太陽電池モジュールの斜視図である。図3は、図1の太陽電池モジュールのコネクタの断面図である。
すなわち瓦型太陽電池モジュール10は、ガラス基板に導電膜や半導体膜が積層され、さらにこれに複数の溝を設けて多数の単体電池(セル)に分割し、各セルを電気的に直列に接続したものである。
またケーブル16,18にはそれぞれコネクタ20,22が接続されている。
ケーブル16,18は長さに長短があり、一方が長く、他方が短い。具体的には、長い方のケーブル18は、その全長が瓦型太陽電池モジュール10の全長の50パーセント以上であり、短い方のケーブル16は、その全長が瓦型太陽電池モジュール10の全長の50パーセント未満である。
またケーブル16,18は色が違う。ケーブル16,18はいずれも電気的に絶縁された2系統の導線24,26(プラス側芯線24,マイナス側芯線26)を有するものである。より具体的には、2条の被覆導線24,26が同一の絶縁チューブ内に配されたケーブルである。
2本の端子28,30の内、一方のピン状端子28は、ピンであり、他方のソケット状端子30は、ソケットである。
またコネクタ20,22は、雌片32と雄片34とを有し、前記したピン状端子28は、雌片32内にあり、ソケット状端子30は雄片34にある。
コネクタ20,22は、互いに接続可能であり、一方の雌片32と他方の雄片34とが接合される。そのとき、各雌片32と雄片34の内部では、一方のピン状端子28と他方のソケット状端子30とが接続される。
したがって、コネクタ22の2本の端子28,30の一方は、太陽電池の正極に接続され、他方の被覆導線は太陽電池の負極に接続されている。同様にコネクタ20の2本の端子28,30の一方は、太陽電池の正極に接続され、他方の被覆導線は太陽電池の負極に接続されている。
ただしコネクタ20,22の2本の端子28,30の極性を比較すると、両者は反対極となっている。すなわち一方のコネクタ20では、ピン状端子28が正極であり、ソケット状端子30が負極であるのに対し、他方のコネクタ22では、ピン状端子28が負極であり、ソケット状端子30が正極である。
図6は、瓦型太陽電池モジュールを正確に配線した場合の概念図である。図7は、瓦型太陽電池モジュールを誤って配線した場合の概念図である。図8は、瓦型太陽電池モジュールを正確に配線した場合の回路図である。
上記した瓦型太陽電池モジュール10は、図5,6に示すように、横に並べて屋根等の構造物に敷設する。
そして隣接する瓦型太陽電池モジュール10のコネクタ20,22を接続する。一つの瓦型太陽電池モジュール10に注目すると、当該瓦型太陽電池モジュール10のコネクタ22と左隣の瓦型太陽電池モジュール10のコネクタ20とを接続する。また瓦型太陽電池モジュール10のコネクタ20と右隣の瓦型太陽電池モジュール10のコネクタ22とを接続する。
ケーブルの長短に注目して説明すると、当該瓦型太陽電池モジュール10の長いケーブル18のコネクタ22と左隣の瓦型太陽電池モジュール10の短いケーブル16のコネクタ20とを接続する。また瓦型太陽電池モジュール10の短いケーブル16のコネクタ20と右隣の瓦型太陽電池モジュール10の長いケーブル18のコネクタ22とを接続する。
その結果、図8に示すように、太陽電池が並列に接続される。
したがって本実施形態の瓦型太陽電池モジュール10は、配線の誤りが起きえない。
Claims (33)
- 複数の太陽電池セルが電気的に直列接続されて略長方形の面状に形成された太陽電池パネルと、
2系統以上の導線を有し長さの異なるケーブルからなる第一ケーブルおよび第二ケーブルと、
前記第一ケーブルの端部に取り付けられる第一コネクタおよび前記第二ケーブルの端部に取り付けられて前記第一コネクタに嵌合接続可能な第二コネクタからなる二組のコネクタと、
前記太陽電池パネルの正極に電気的に導通した二本のプラス側の導線と、
前記太陽電池パネルの負極に電気的に導通した二本のマイナス側の導線と、を備え、
前記第一ケーブルが、前記二本のプラス側の導線の一方および前記二本のマイナス側の導線の一方からなる2条の導線を同一の絶縁チューブ内に配したケーブルであり、
前記第二ケーブルが、前記二本のプラス側の導線の他方および前記二本のマイナス側の導線の他方からなる2条の導線を同一の絶縁チューブ内に配したケーブルであり、
太陽電池モジュールは略長方形であって第一ケーブル及び第二ケーブルは、いずれも太陽電池モジュールの長手方向の辺から外側に向かって延出されており、
太陽電池パネルの長手方向の長さをL1とし太陽電池パネルの短手方向の長さをL4としたとき前記第二ケーブルの前記外側に向かって延出された部分の長さXは(L1/2)よりも長く且つL4よりも長いものであり、
前記第一ケーブルの前記外側に向かって延出された部分の長さYは、前記第二ケーブルの長さよりも短く且つ(L1/2)よりも短いことを特徴とする太陽電池モジュール。 - 長さXは、(L1/4)とL4の合計よりも長く、((L1/4)×3)とL4の合計よりも短いことを特徴とする請求項1に記載の太陽電池モジュール。
- 長さYは、太陽電池モジュールの短手方向の長さL2よりも短いことを特徴とする請求項1または2に記載の太陽電池モジュール。
- 前記第一コネクタおよび第二コネクタは、前記プラス側の導線に接続される正極側端子と、前記マイナス側の導線に接続される負極側端子と、雄片と、当該雄片と嵌合接続可能な雌片と、を有し、
第一コネクタおよび第二コネクタの一方は、前記雄片に正極側端子を設け、前記雌片に負極側端子を設けたものであり、
第一コネクタおよび第二コネクタの他方は、前記雄片に負極側端子を設け、前記雌片に正極側端子を設けたものであることを特徴とする請求項1乃至3のいずれかに記載の太陽電池モジュール。 - 前記太陽電池パネルの正極に電気的に導通したプラス側電極接続端子と、
前記太陽電池パネルの負極に電気的に導通したマイナス側電極接続端子と、を有し、
二本のプラス側の導線は、前記プラス側電極接続端子に接続され、二本のマイナス側の導線は、前記マイナス側電極接続端子に接続されていることを特徴とする請求項1乃至4のいずれかに記載の太陽電池モジュール。 - 前記第一コネクタおよび前記第二コネクタの模様若しくは色彩又はこれらの結合が相違することを特徴とする請求項1乃至5のいずれかに記載の太陽電池モジュール。
- 前記第一ケーブルおよび前記第二ケーブルの模様、色彩又はこれらの結合が相違することを特徴とする請求項1乃至6のいずれかに記載の太陽電池モジュール。
- 前記プラス側の導線および前記マイナス側の導線の模様、色彩又はこれらの結合が相違することを特徴とする請求項1乃至7のいずれかに記載の太陽電池モジュール。
- 前記太陽電池パネルが略長方形状であり、
前記第一ケーブルおよび第二ケーブルは、前記太陽電池パネルの長辺の略中央から延出されており、
太陽電池パネルの短辺同士を隣り合わせて二つの太陽電池モジュールを配置した場合、一方の太陽電池モジュールの第一コネクタと他方の太陽電池モジュールの第一コネクタとは、ケーブルの長さが足りないために接続不可能であることを特徴とする請求項1乃至8のいずれかに記載の太陽電池モジュール。 - 裏面側に、接続されたケーブル及びコネクタを収容する空隙部が設けられていることを特徴とする請求項1乃至9のいずれかに記載の太陽電池モジュール。
- 裏面側にケーブルを短手方向に挿通する溝が設けられていることを特徴とする請求項1乃至10のいずれかに記載の太陽電池モジュール。
- 内部に複数の太陽電池セルが形成され全体として一つの太陽電池を構成する太陽電池モジュールであって、
二組のコネクタを有し、
前記二組のコネクタはいずれも独立した二以上の端子を備え、
前記二組のコネクタはいずれも太陽電池モジュールの長手方向中央から延出された2系統以上の導線を有するケーブルに接続されており、
各コネクタの一つの端子は前記太陽電池の正極に接続された正極側端子であり、
各コネクタの他の一つの端子は太陽電池の負極に接続された負極側端子であり、
前記二組のコネクタの内の一方のコネクタに接続されたケーブルは、他方のコネクタに接続されたケーブルよりも短く、
前記ケーブルの長さの関係は他の太陽電池モジュールと共に列状及び複数段状に並べて平面的に分布させたとき短いケーブルが接続されたコネクタ同士は長さ不足の状態であって接続させることが不能となるものであり、
長いケーブルが接続されたコネクタと短いケーブルが接続されたコネクタが接合され、両者が接合された状態において両コネクタの正極側端子同士と、負極側端子同士が接続された状態となり、他の太陽電池モジュールと電気的に並列に接続され、
且つ長いケーブルは隣接する段の太陽電池モジュールの裏面側を経て隣接する段の太陽電池モジュールの外側に至り、長いケーブルが接続されたコネクタと隣接する段の太陽電池モジュールの短いケーブルが接続されたコネクタとを接続することもできることを特徴とする太陽電池モジュール。 - 短いケーブルは、隣接する段の太陽電池モジュールの裏面側を経て隣接する段の太陽電池モジュールの外側に至ることができない長さであることを特徴とする請求項12に記載の太陽電池モジュール。
- 二組のコネクタの内の一方および他方のコネクタに接続されたケーブルは、それぞれ2条の導線を同一の絶縁チューブ内に配したケーブルであることを特徴とする請求項12又は13に記載の太陽電池モジュール。
- 二組のコネクタが、それぞれ構造が同一であるが色違いであることを特徴とする請求項1乃至14のいずれかに記載の太陽電池モジュール。
- 長い方のケーブルは、短い方のケーブルと色が違うことを特徴とする請求項1乃至15のいずれかに記載の太陽電池モジュール。
- 長い方のケーブルは、太陽電池モジュールの全長の50パーセント以上であり、短い方のケーブルは、太陽電池モジュール全長の50パーセント未満であることを特徴とする請求項1乃至16のいずれかに記載の太陽電池モジュール。
- 請求項1乃至17のいずれかに記載の太陽電池モジュールが複数列状に配置され、
二組のコネクタのうちの一方である第一コネクタおよび他方である第二コネクタは、それぞれ正極側端子および負極側端子を有し、
隣接する一方の太陽電池モジュールの第一コネクタおよび他方の太陽電池モジュールの第二コネクタの同極の端子同士を接続させて、隣接する太陽電池モジュールが電気的に並列接続され、一連の太陽電池ブロックが形成されることを特徴とする太陽電池モジュールの敷設構造。 - 複数の前記太陽電池ブロックを直列に接続して配線を建物内に引き込む引込ケーブルを備えることを特徴とする請求項18に記載の太陽電池モジュールの敷設構造。
- 二つの前記太陽電池ブロックを備え、
前記引込ケーブルは、
一方の太陽電池ブロックの未使用の第一コネクタに接続される第一直列コネクタと、
他方の太陽電池ブロックの未使用の第二コネクタに接続される第二直列コネクタと、
前記太陽電池パネルで変換された電力を出力する出力コネクタと、
前記第一直列コネクタに接続される正負二本の導線を含む第一屋外ケーブルと、
前記第二直列コネクタに接続される正負二本の導線を含む第二屋外ケーブルと、
前記出力コネクタに接続される正負二本の導線を含む屋内側ケーブルと、を有し、
前記第一屋外ケーブルの一方の導線は、前記第二屋外ケーブルの正負が異なる導線に接続されており、
前記第一屋外ケーブルの他方の導線は、前記屋内側ケーブルの正負が同一の導線に接続されており、
前記第二屋外ケーブルの残りの導線と前記屋内側ケーブルの残りの導線とが接続されていることを特徴とする請求項19に記載の太陽電池モジュールの敷設構造。 - 前記第一直列コネクタおよび前記第二直列コネクタの模様若しくは色彩又はこれらの結合が相違することを特徴とする請求項20に記載の太陽電池モジュールの敷設構造。
- 前記第一屋外側ケーブルおよび前記第二屋外側ケーブルの模様、色彩又はこれらの結合が相違することを特徴とする請求項21に記載の太陽電池モジュールの敷設構造。
- 略長方形状であって内部に複数の太陽電池セルが形成され全体として一つの太陽電池を構成する太陽電池モジュールを使用し、当該太陽電池モジュールを構造物に敷設する太陽電池モジュールの敷設構造において、
太陽電池モジュールは、二組のコネクタを有し、
前記二組のコネクタはいずれも独立した二以上の端子を備え、
前記二組のコネクタはいずれも太陽電池モジュールの長手方向中央から太陽電池モジュールの外側に延出された2系統以上の導線を有するケーブルに接続されており、
各コネクタの一つの端子は太陽電池の正極に接続され、
各コネクタの他の一つの端子は太陽電池の負極に接続され、
前記二組のコネクタの内の一方のコネクタに接続されたケーブルは、他方のコネクタに接続されたケーブルよりも短く、
前記ケーブルの長さの関係は太陽電池モジュールを列状に並べたとき短いケーブルが接続されたコネクタ同士は長さ不足の状態であって接続させることが不能となるものであり、
前記太陽電池モジュールは構造物に列状に並べて設置され、隣接する太陽電池モジュールのコネクタは長いケーブルが接続されたコネクタと短いケーブルが接続されたコネクタが前記太陽電池モジュールの列の外側で接合され、両者が接合された状態において両コネクタの正極側端子同士と、負極側端子同士が接続された状態となり、複数の太陽電池モジュールが電気的に並列に接続されることを特徴とする太陽電池モジュールの敷設構造。 - 二組のコネクタの内の一方および他方のコネクタに接続されたケーブルは、それぞれ2条の導線を同一の絶縁チューブ内に配したケーブルであることを特徴とする請求項23に記載の太陽電池モジュールの敷設構造。
- 太陽電池モジュールが備える二組のコネクタが、それぞれ構造が同一であるが色違いであることを特徴とする請求項23又は24に記載の太陽電池モジュールの敷設構造。
- 太陽電池モジュールが備える長い方のケーブルは、短い方のケーブルと色が違うことを特徴とする請求項23乃至25のいずれかに記載の太陽電池モジュールの敷設構造。
- 太陽電池モジュールが備える長い方のケーブルは、太陽電池モジュールの全長の50パーセント以上であり、短い方のケーブルは、太陽電池モジュールの太陽電池モジュールの全長の50パーセント未満であることを特徴とする請求23乃至26のいずれかに記載の太陽電池モジュールの敷設構造。
- 太陽電池モジュールが備える二組のコネクタのうちの一方が第一コネクタであり、他方が第二コネクタであり、
前記太陽電池ブロックにおいて未使用の第一コネクタ又は第二コネクタのうち、前記引込ケーブルが接続されない第一コネクタ又は第二コネクタに端子保護部材が取り付けられることを特徴とする請求項23乃至27のいずれかに記載の太陽電池モジュールの敷設構造。 - 太陽電池モジュールは、裏面側に、接続されたケーブル及びコネクタを収容する空隙部が設けられたものであり、
複数個の太陽電池モジュールの列が複数段状に並べられて太陽電池モジュールが平面的に分布するものであり、
列状に隣接する太陽電池モジュールの長い方のケーブルと短い方のケーブルが接続されて、当該長い方のケーブルと短い方のケーブルとが隣接する段の太陽電池モジュールの空隙部に収容されていることを特徴とする請求項23乃至28のいずれかに記載の太陽電池モジュールの敷設構造。 - 複数個の太陽電池モジュールの列が複数段状に並べられて太陽電池モジュールが平面的に分布するものであり、
一つの段においては、長い方のケーブルを屋根に向かって右側に延ばして右側に隣接する太陽電池パネルの短い方のケーブルと接続し、これに隣接する段においては、長い方のケーブルを屋根に向かって左側に延ばして左側に隣接する太陽電池パネルの短い方のケーブルと接続することを特徴とする請求項23乃至29のいずれかに記載の太陽電池モジュールの敷設構造。 - 列の端部に位置する太陽電池モジュールは、長い方のケーブルが隣接する段の太陽電池モジュールの底面をくぐって当該隣接する段の太陽電池モジュールの外側に出現し、隣接する段の列の端部に位置する太陽電池モジュールの短い方のケーブルと接続されていることを特徴とする請求項29又は30に記載の太陽電池モジュールの敷設構造。
- 列の端部に位置する太陽電池モジュールの長い方のケーブルと、隣接する段の列の端部に位置する太陽電池モジュールの短い方のケーブルは、接続された状態で一つ飛びの段の太陽電池モジュールの空隙部に収容されていることを特徴とする請求項29乃至31のいずれかに記載の太陽電池モジュールの敷設構造。
- 請求項18乃至32のいずれかに記載の敷設構造を構成する太陽電池モジュールが備える二組のコネクタのうちの一方が第一コネクタであり、他方が第二コネクタであり、
前記敷設構造の敷設作業中断時に、未使用の前記第一コネクタ又は第二コネクタに端子保護部材を取り付けることを特徴とする太陽電池モジュールの敷設方法。
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- 2009-09-02 US US13/063,195 patent/US8853520B2/en not_active Expired - Fee Related
- 2009-09-02 CN CN200980133914.2A patent/CN102137976B/zh not_active Expired - Fee Related
- 2009-09-02 CN CN201410181443.5A patent/CN103982013B/zh not_active Expired - Fee Related
- 2009-09-02 CN CN200980133933.5A patent/CN102137977B/zh active Active
- 2009-09-02 WO PCT/JP2009/065367 patent/WO2010029883A1/ja active Application Filing
- 2009-09-02 AU AU2009292594A patent/AU2009292594B2/en not_active Ceased
- 2009-09-02 WO PCT/JP2009/065368 patent/WO2010029884A1/ja active Application Filing
- 2009-09-02 US US13/063,201 patent/US20110162301A1/en not_active Abandoned
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2015
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GB2493056A (en) * | 2011-06-16 | 2013-01-23 | Stephen John Makin | Roof-Mounted Solar Panels |
GB2493056B (en) * | 2011-06-16 | 2014-12-03 | Stephen John Makin | Roof-mounted solar panels |
US20130284514A1 (en) * | 2012-04-26 | 2013-10-31 | Sumitomo Wiring Systems, Ltd. | Terminal box for solar cell module |
JP2016102370A (ja) * | 2014-11-28 | 2016-06-02 | 株式会社東芝 | 太陽光電池モジュール |
Also Published As
Publication number | Publication date |
---|---|
AU2009292594A8 (en) | 2011-03-31 |
CN102137976A (zh) | 2011-07-27 |
CN102137977B (zh) | 2019-07-26 |
US20110162689A1 (en) | 2011-07-07 |
US20110162301A1 (en) | 2011-07-07 |
AU2009292594B2 (en) | 2015-09-03 |
CN103982013A (zh) | 2014-08-13 |
EP2322738A1 (en) | 2011-05-18 |
AU2009292594A1 (en) | 2010-03-18 |
US8853520B2 (en) | 2014-10-07 |
CN102137976B (zh) | 2014-05-28 |
CN102137977A (zh) | 2011-07-27 |
WO2010029884A1 (ja) | 2010-03-18 |
US20160049537A1 (en) | 2016-02-18 |
EP2322738A4 (en) | 2015-09-02 |
CN103982013B (zh) | 2017-05-10 |
AU2009292595A1 (en) | 2010-03-18 |
AU2009292595B2 (en) | 2015-09-10 |
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