CN111863999A - Solar cell module - Google Patents
Solar cell module Download PDFInfo
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- CN111863999A CN111863999A CN202010296415.3A CN202010296415A CN111863999A CN 111863999 A CN111863999 A CN 111863999A CN 202010296415 A CN202010296415 A CN 202010296415A CN 111863999 A CN111863999 A CN 111863999A
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- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 14
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- 238000009434 installation Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 2
- 102100038077 CD226 antigen Human genes 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000884298 Homo sapiens CD226 antigen Proteins 0.000 description 1
- 101000670986 Homo sapiens Symplekin Proteins 0.000 description 1
- OHJIHGVLRDHSDV-BNAVIEMTSA-N OC(=O)CCC\C=C/C[C@@H]1[C@@H](/C=C/[C@@H](O)CCCCC)C[C@@H]2C(C)(C)[C@H]1C2 Chemical compound OC(=O)CCC\C=C/C[C@@H]1[C@@H](/C=C/[C@@H](O)CCCCC)C[C@@H]2C(C)(C)[C@H]1C2 OHJIHGVLRDHSDV-BNAVIEMTSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
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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
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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
- 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
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Abstract
The invention provides a solar cell module capable of outputting original power. In the solar cell module, one or more solar cells are connected in series to form a plurality of cell groups, and the plurality of cell groups are connected in series through intermediate electrode wiring to form two series groups, wherein the two series groups are connected in parallel. In the two strings, the number of units of the solar battery cells in one first string and the number of units of the solar battery cells in the other second string are equal.
Description
Technical Field
The present invention relates to a solar cell module.
Background
As a solar battery module, for example, when one or a plurality of solar battery cells are connected in series to form a plurality of cell groups, and the plurality of cell groups are connected by intermediate electrode wiring to form two strings, and the two strings are connected in parallel, there are the following inconveniences.
That is, in such a solar cell module, when the number of solar cells in one string and the number of solar cells in the other string are different in the two strings, the voltages of the one and the other are different. Thus, a reverse flow is generated between one string and another string, and power loss increases. Therefore, the power originally possessed by the power cannot be output.
Documents of the prior art
Patent document
Patent document 1: international publication No. 2018/17326
Disclosure of Invention
Technical problem to be solved by the invention
In this regard, the solar battery module described in patent document 1 simply connects a plurality of cell lines in a complicated manner, and does not connect two series-parallel lines each formed by connecting a plurality of cell lines.
Therefore, the present invention has an object to provide a solar cell module capable of outputting power originally possessed by the solar cell module when one or a plurality of solar cells are connected in series to form a plurality of cell groups, and the plurality of cell groups are connected by intermediate electrode wiring to form two strings, and the two strings are connected in parallel.
Means for solving the problems
In order to solve the above problem, a solar cell module according to the present invention is a solar cell module in which one or a plurality of solar cells are connected in series to form a plurality of cell groups, the plurality of cell groups are connected by intermediate electrode wirings to form two strings, and the two strings are connected in parallel, wherein the number of solar cells in one first string is equal to the number of solar cells in the other second string.
Effects of the invention
According to the present invention, a plurality of cell groups are formed by connecting one or a plurality of solar battery cells in series, and two cell groups are formed by connecting the plurality of cell groups through intermediate electrode wiring lines, and when the two cell groups are connected in parallel, the power originally possessed by the solar battery cells can be output.
Drawings
Fig. 1 is a schematic plan view of an example of a polygonal solar cell module according to the present embodiment.
Fig. 2 is a schematic plan view of an example of a polygonal solar cell module according to the present embodiment.
Fig. 3A is a plan view illustrating an example of a rectangular solar cell module according to the present embodiment.
Fig. 3B is a plan view illustrating an example of a rectangular solar cell module according to the present embodiment.
Fig. 4 is a longitudinal sectional view of an internal structure of the solar cell module.
Fig. 5A is a schematic plan view of another embodiment different from the solar cell module of the present embodiment.
Fig. 5B is a schematic plan view of another embodiment different from the solar cell module of the present embodiment.
Fig. 5C is a schematic plan view of another embodiment different from the solar cell module of the present embodiment.
Fig. 5D is a schematic plan view of another embodiment different from the solar cell module of the present embodiment.
Fig. 6 is a schematic plan view of a roof on which a solar cell module is provided.
Fig. 7 is a plan view of the solar cell module and the module installation region in which the rectangular solar cell module is installed, which are installed on the installation surface of the roof, shown in fig. 6.
Fig. 8A is a plan view of another example of the solar cell module shown in fig. 3B.
Fig. 8B is a plan view of still another example of the solar cell module shown in fig. 3B.
Fig. 8C is a plan view of the solar cell module shown in fig. 5A.
Fig. 9 is a plan view of another example of the solar cell module shown in fig. 1.
Fig. 10A is a plan view of a juxtaposed pattern in which the solar cell modules shown in fig. 8A are juxtaposed in 3 rows and 3 columns.
Fig. 10B is a plan view of a juxtaposed pattern in which the solar cell modules shown in fig. 8A are juxtaposed in 2 rows and 2 columns and the solar cell modules shown in fig. 8B are juxtaposed in 2 rows and 1 column.
Fig. 10C is a plan view of a juxtaposed pattern in which the solar cell modules shown in fig. 8A are juxtaposed in 2 rows and 3 columns and the solar cell modules shown in fig. 8C are juxtaposed in 2 rows and 1 columns.
Fig. 10D is a plan view of a juxtaposed pattern in which the solar cell modules shown in fig. 8B are juxtaposed in 2 rows and 4 columns and the solar cell modules shown in fig. 8C are juxtaposed in 1 row and 4 columns.
Fig. 11A is a plan view of an arrangement pattern different from that shown in fig. 7.
Fig. 11B is a plan view of an arrangement pattern different from that shown in fig. 7.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same reference numerals are used for the same members. The names and functions are also the same. Therefore, the detailed description will not be repeated.
Fig. 1 and 2, and fig. 3A and 3B are schematic plan views of examples of the solar cell modules M1 and M2 according to the present embodiment. Fig. 1 and 2 show an example and other examples of the solar cell module M1, respectively, in which the solar cell module main body 30 has a polygonal shape (e.g., a pentagonal shape, a trapezoidal shape, and a triangular shape) having a right angle and a corner at an angle other than the right angle. In fig. 3A and 3B, an example is shown in which the solar cell module main body 30 reverses the polarity in the example of the rectangular solar cell module M2. The solar cell module M1 shown in fig. 1 and 2 may have a configuration in which the polarity is reversed. Fig. 4 is a vertical cross-sectional view of the internal structure of the solar cell modules M1 and M2.
As shown in fig. 1 and 2 and fig. 3A and 3B, the solar cell modules M1 and M2 include two strings S (1) and S (2) connected in parallel with each other. Each of the two strings S (1) and S (2) includes a plurality of cell groups CG (1, 1) to CG (1, n1), and CG (2, 1) to CG (2, n2) (n1, n2 are integers equal to or greater than 2). In the solar cell module M1 shown in fig. 1 and 2, n1 is 2 and n2 is 4, and in the solar cell module M2 shown in fig. 3A and 3B, n1 is 3 and n2 is 3.
The cell groups CG (1, 1) to CG (1, n1) and CG (2, 1) to CG (2, n2) are connected to each other by intermediate electrode wirings La to La (bus bars). The cell groups CG (1, 1) to CG (1, n1) and CG (2, 1) to CG (2, n2) include one or more solar battery cells C, C to C (hereinafter, only denoted by C). In the cell groups CG (1, 1) to CG (1, n1) and CG (2, 1) to CG (2, n2), the solar cells C are connected in series.
In the present embodiment, the solar cell C in the solar cell modules M1 and M2 is formed by dividing a solar cell substrate having a size of about 160mm square into two parts. That is, the divided solar battery cells C have a size of about 160mm × 80mm square as a whole.
As shown in fig. 4, the solar cell C includes a front surface electrode 31 and a back surface electrode 32. The surface electrode 31 is constituted by a bus bar electrode 31a and a finger electrode not shown. The bus electrode 31a is strip-shaped and is formed linearly on the surface of the solar cell C in the parallel arrangement direction X. The finger electrodes are formed in a plurality extending in a comb-like shape from both side edges of the bus bar electrode 31a in an orthogonal direction Y orthogonal to the parallel arrangement direction X. The finger electrodes are patterned to cover the entire light-receiving surface of the solar cell C at a predetermined interval. The back surface electrode 32 is formed in a linear strip shape in the parallel arrangement direction X on the back surface of the solar cell C, and is provided so as to face the front surface of the bus bar electrode 31 a.
The solar cell modules M1 and M2 each include a solar cell C, a wiring material 33 (interface), a translucent substrate 34, and a protective member 35. The solar cell C has a front surface electrode 31 and a back surface electrode 32. The wiring member 33 is a wiring member that connects the bus bar electrode 31a of the front surface electrode 31 of one solar cell C and the back surface electrode 32 of another solar cell C, and connects the adjacent solar cells C and C in series. The translucent substrate 34 is provided to face the front surface side (upper side in fig. 4) of the solar cell C. The protective member 35 is provided to face the rear surface side (lower side in fig. 4) of the solar cell C.
The solar cell modules M1 and M2 are configured such that the solar cells C and the wiring member 33 are sealed between the light-transmissive substrate 34 and the protective member 35 with the light-transmissive sealing material 36. The wiring member 33 is formed by applying solder to the outer surface of a long and thin base material (solder plating process). The material of the substrate is not particularly limited, and for example, a metal such as copper can be used.
One side (the left side in fig. 4) of the wiring material 33 is soldered to the bus bar electrode 31a on the surface of the solar cell C. The other side (right side in fig. 4) of the wiring material 33 is soldered to the back surface electrode 32 on the back surface of the adjacent solar cell C. In the present embodiment, although 5 bus bar electrodes are formed in the solar cell C, one bus bar electrode, or 2 to 4 bus bar electrodes in parallel, or 6 bus bar electrodes or more may be formed. In this case, the back electrode 32 may be formed in a single line, or 2 to 4 parallel lines, or 6 or more lines, and the wiring materials 33 to 33 may be formed in a single line, or 2 to 4 parallel lines, or 6 or more lines.
In the two strings S (1) and S (2), the number of solar cells C in the first string S (1) is equal to the number of solar cells C in the second string S (2). In the examples shown in fig. 1 and 2, the number of cells of the first string S (1) and the second string S (2) is 8, respectively. In the example shown in fig. 3A and 3B, the number of cells of the first string S (1) and the second string S (2) is 30, respectively.
According to the present embodiment, since the number of cells of the solar battery cells C in the first string S (1) is equal to the number of cells of the solar battery cells C in the second string S (2), the voltages can be made the same in one string S (1) and the other string S (2). Therefore, the generation of the reverse flow between one string S (1) and the other string S (2) can be avoided, and the power loss can be effectively prevented. Therefore, the power originally possessed can be output.
[ first embodiment ]
In the present embodiment, as shown in fig. 1 and 2 and fig. 3A and 3B, the solar cells C in the first string S (1) and the solar cells C in the second string S (2) are arranged in the predetermined parallel arrangement direction X of the solar cell module main body 30. The first strip S (1) and the second strip S (2) are arranged in parallel in the orthogonal direction Y. In each of the first string S (1) and the second string S (2), the cell groups CG (1, 1) to CG (1, n1), CG (2, 1) to CG (2, n2) are arranged in parallel in the orthogonal direction Y. End electrode wirings Lb to Lb (bus bars) connected to at least one side of the cell groups CG (1, 1) to CG (1, n1) and CG (2, 1) to CG (2, n2) are provided at an end of the solar cell module main body 30 on at least one side in the parallel arrangement direction X. In the example shown in fig. 1 and 2, the end electrode wirings Lb to Lb connected to both sides of the cell groups CG (1, 1) to CG (1, n1), CG (2, 1) to CG (2, n2) are provided at the end of one side (X1) in the juxtaposed direction X of the solar cell module main body 30. In the example shown in fig. 3A and 3B, the end electrode wirings Lb to Lb connected to both sides of the cell groups CG (1, 1) to CG (1, n1), CG (2, 1) to CG (2, n2) are provided at the ends of both sides (X1, X2) of the solar cell module main body 30 in the juxtaposed arrangement direction X.
In the example shown in fig. 1, the end electrode wiring Lb of the cell group CG (1, 1) and the end electrode wiring Lb of the cell group CG (2, n2) are connected to the connection electrode wiring Lc 1. The end electrode wirings Lb of the cell group CG (1, n1) and the cell group CG (2, 1) are connected to the connection electrode wiring Lc 2. In the example shown in fig. 2, the end electrode wiring Lb of the cell group CG (1, 1) and the end electrode wiring Lb of the cell group CG (2, 1) are connected to the connection electrode wiring Lc 1. The end electrode wiring Lb of the cell group CG (1, n1) and the end electrode wiring Lb of the cell group CG (2, n2) are connected to the connection electrode wiring Lc 2. In the example shown in fig. 3A and 3B, the end electrode wiring Lb of the cell group CG (1, 1) and the end electrode wiring Lb of the cell group CG (2, n2) are connected to the connection electrode wirings Lc1 and Lc 2. End electrode wirings Lb of the cell group C G (1, n1) and the cell group CG (2, 1) are connected to the connection electrode wirings Lc2 and Lc 1. In the example shown in fig. 1 and 2, the solar cell module main bodies 30 may be output from end portions on both sides (X1, X2) in the arrangement direction X. In the example shown in fig. 3A and 3B, the solar cell module main bodies 30 may be output from an end portion on one side in the arrangement direction X.
[ second embodiment ]
In the present embodiment, the end electrode wiring lines Lb provided at the end portion on one side (X1) in the parallel arrangement direction X of the solar cell module main bodies 30 are arranged along the orthogonal direction Y. In this way, the solar cell module main body 30 can be made compact in the parallel arrangement direction X.
[ third embodiment ]
In the present embodiment, at least one of the solar battery cells C to C in the first string S (1) and the second string S (2) is formed of a divided cell. Here, the divided unit is a small-sized unit obtained by dividing a standard-sized unit (a unit corresponding to 1 solar cell wafer, which is also referred to as a full unit). As the division unit, for example, a unit of a standard size may be divided into a half unit (half unit) and a unit of 1/4. Therefore, the current value of the current per cell can be reduced (halved in the case of a half cell), so that the power loss of the solar cell module can be reduced. In the present embodiment, the solar battery cells C to C are half cells.
[ fourth embodiment ]
In the example shown in fig. 1 and 2, the solar cell module M1 is formed as a polygon having a right-angled corner and a corner at an angle other than the right angle of the solar cell module main body 30. As the polygon, for example, a pentagon having three right angles, a quadrangle having two right angles, or a right triangle can be exemplified, and in this example, the polygon is a pentagon having three right angles. Thus, the application of the solar cell module M1 can be expanded.
In the example shown in fig. 1 and 2, the polygon is a pentagon having three right angles, a quadrangle having two right angles, or a right triangle, so the solar cell module M1 can be provided with the pentagon, quadrangle, or right triangle solar cell module M1 matching a roof having corners at angles other than right angles (e.g., a roof of a four-pitched roof or the like). This makes it possible to effectively provide the roof with a corner portion having an angle other than a right angle (for example, a roof such as a four-pitched roof).
(other solar cell Module mode)
Fig. 5A to 5D are schematic plan views showing another embodiment different from the solar cell modules M1 and M2 according to the present embodiment. In fig. 5A to 5D, examples are shown in which the solar cell module main body 30x connects a plurality of strings Sx (1) to Sx (m) (m is an integer greater than or equal to 2) in series in the rectangular solar cell module Mx.
As shown in fig. 5A to 5D, the solar cell module Mx includes a plurality of strings Sx (1) to Sx (m) connected in series with each other. In the solar cell module Mx shown in fig. 5A to 5D, m is 3. The strings S (1) to S (m) respectively include two cell groups CGx (1, 1) to CGx (1, 2) and CGx (m, 1) to CGx (m, 2).
The cell groups CGx (1, 1) to CGx (1, 2) and CGx (m, 1) to CG x (m, 2) are connected by intermediate electrode wirings La to La (bus bars), respectively. The cell groups CGx (1, 1) to CGx (1, 2), CGx (m, 1) to CGx (m, 2) include one or more solar battery cells C. In the cell groups CGx (1, 1) to CGx (1, 2) and CGx (m, 1) to CGx (m, 2), the solar battery cells C are connected in series. The two cell groups CGx (1, 1) to CGx (1, 2) and CGx (m, 1) to CGx (m, 2) are connected in parallel via intermediate electrode wirings La to La.
The plurality of strings Sx (1) to Sx (m) are arranged in parallel in the orthogonal direction Y. In each of the plurality of strings Sx (1) to Sx (m), cell groups CGx (1, 1) to CGx (1, 2), CGx (m, 1) to CGx (m, 2) are juxtaposed in the orthogonal direction Y. The plurality of strings Sx (1) to Sx (m) are connected in series by end electrode wirings Lb to Lb (bus bars), respectively.
The internal structure of the solar cell module Mx is the same as the internal structures of the solar cell modules M1 and M2 shown in fig. 4, and the description thereof is omitted here.
(mode of solar cell Module)
In the solar cell module Mx shown in fig. 5A, the end electrode wiring line Lb of positive polarity or negative polarity (positive polarity in this example) is provided in the string Sx (1) on one side (Y1) in the orthogonal direction Y and at the end of one side (X1) in the parallel arrangement direction X. The end electrode wiring lines Lb of the other polarity (negative polarity in this example) are provided in the strings sx (m) at the end of the other side (X2) in the parallel arrangement direction X and on the other side (Y2) in the orthogonal direction Y.
In the solar cell module Mx shown in fig. 5B, the end electrode wiring line Lb of positive polarity or negative polarity (positive polarity in this example) is provided in the string Sx (1) on one side (Y1) in the direction Y orthogonal to the end on the other side (X2) in the parallel arrangement direction X. The end electrode wiring lines Lb of the other polarity (negative polarity in this example) are provided in the strings sx (m) on the other side (Y2) in the direction Y orthogonal to the end of one side (X1) in the parallel arrangement direction X.
In the solar cell module Mx shown in fig. 5C, the end electrode wiring line Lb of positive polarity or negative polarity (positive polarity in this example) is provided in the string Sx (1) on one side (Y1) in the orthogonal direction Y of the end on one side (X1) in the parallel arrangement direction X. The end electrode wiring lines Lb of the other polarity (negative polarity in this example) are provided in the string S X (2) at the center portion in the orthogonal direction Y of the end portion on the other side (X2) in the parallel arrangement direction X.
In the solar cell module Mx shown in fig. 5D, the end electrode wiring lines Lb of positive polarity or negative polarity (positive polarity in this example) are provided in the string Sx (2) at the end on the other side (X2) in the parallel arrangement direction X and at the center in the orthogonal direction Y. The end electrode wiring lines Lb of the other polarity (negative polarity in this example) are provided on the strings Sx (1) at the end of one side (X1) of the parallel arrangement direction X and one side (Y1) of the orthogonal direction Y.
[ fifth embodiment ]
[ solar cell Module on roof ]
Fig. 6 is a schematic plan view showing the roof 10 provided with the solar cell modules M1, M2, and Mx. Fig. 7 is a schematic plan view showing the solar cell module M1 and the rectangular solar cell module M2 provided on the installation surface α of the roof 10 shown in fig. 6, and the module installation region β.
Fig. 8A and 8B are plan views respectively showing another example and still another example of the solar cell module M2 shown in fig. 3B. Fig. 8C is a plan view illustrating the solar cell module Mx illustrated in fig. 5A. Fig. 9 is a plan view showing another example of the solar cell module M1 shown in fig. 8.
The solar cell modules M21 and M22 shown in fig. 8A and 8B are connected in series to the solar cell modules M2 and M2, respectively, in which the number of cells of the solar cell unit C of the cell group CG (1, 1) to CG (1, n1) and CG (2, 1) to CG (2, n2) in the solar cell module M2 shown in fig. 3B is set to 9 and 7. In the solar cell module M21 shown in fig. 8A, power corresponding to 54 full cells (108 half cells) connected in series [ corresponding to 54 right angles (108 half cells) ] can be output. In the solar cell module M22 shown in fig. 8B, power corresponding to all the cells connected in series, i.e., 42 cells (84 half cells) can be output [ corresponding to 42 right angles (84 half cells) ].
The solar cell module Mx shown in fig. 8C is the same as the solar cell module Mx shown in fig. 5A. In the solar cell module Mx shown in fig. 8C (the solar cell module Mx shown in fig. 5A), power corresponding to 30 full cells (60 half cells) connected in series [ corresponding to 30 right angles (60 half cells) ].
The solar cell module M1 shown in fig. 9 is symmetrical with respect to a central axis line along the parallel arrangement direction X passing through the center of the orthogonal direction Y in the solar cell module M1 shown in fig. 1. In the solar cell module M1 shown in fig. 9, power corresponding to 20 full cells (40 half cells) connected in series [ corresponding to 20 right angles (40 half cells) ] can be output.
(parallel arrangement pattern of solar cell module)
Fig. 10A is a plan view of the juxtaposed arrangement pattern PTa1 in which the solar cell modules M21 shown in fig. 8A are juxtaposed in 3 rows and 3 columns. Fig. 10B is a plan view of the juxtaposed pattern PTa2 in which the solar cell modules M21 shown in fig. 8A are juxtaposed in 2 rows and 2 columns and the solar cell module M22 shown in fig. 8B is juxtaposed in 2 rows and 1 columns. Fig. 10C is a plan view of the juxtaposed arrangement pattern PTa3 in which the solar cell modules M21 shown in fig. 8A are juxtaposed in 2 rows and 3 columns and the solar cell modules Mx shown in fig. 8C are juxtaposed in 2 rows and 1 columns. Fig. 10D is a plan view of the juxtaposed arrangement pattern PTa4 in which the solar cell modules M22 shown in fig. 8B are juxtaposed in 2 rows and 4 columns and the solar cell modules Mx shown in fig. 8C are juxtaposed in 1 row and 4 columns.
In the parallel arrangement pattern PTa1 shown in fig. 10A, power corresponding to 54 full cells (108 half cells) connected in series can be output in 3 rows and 3 columns. In the parallel arrangement pattern PTa2 shown in fig. 10B, the power of 2 rows and 2 columns corresponding to 54 total cells (108 half cells) connected in series and the power of 2 rows and 1 columns corresponding to 42 total cells (84 half cells) connected in series can be output. In the parallel arrangement pattern PTa3 shown in fig. 10C, the power corresponding to 2 rows and 3 columns of 54 total cells (108 half cells) connected in series and the power corresponding to 2 rows and 1 columns of 30 total cells (60 half cells) connected in series can be output. In the parallel arrangement pattern PTa4 shown in fig. 10D, it is possible to output power equivalent to 2 rows and 4 columns of all the cells 42 (84 half cells) connected in series and power equivalent to 1 row and 4 columns of all the cells 30 (60 half cells) connected in series.
Fig. 11A and 11B are plan views of the set patterns PTb2, PTb3 different from the set pattern PTb1 shown in fig. 7.
The arrangement pattern PTb2 shown in fig. 11A is such that, in the arrangement pattern PTb1 shown in fig. 7, rectangular solar cell modules Mx shown in fig. 8C are arranged on both sides of the module arrangement region β in place of the rectangular solar cell modules M2 shown in fig. 3A, and rectangular solar cell modules M21 shown in fig. 8A are arranged in the module arrangement region β. In the arrangement pattern PTb2 shown in fig. 11, 3 full cells (108 half cells) corresponding to 54 full cells connected in series, 6 full cells (60 half cells) corresponding to 30 full cells connected in series, and 6 full cells (40 half cells) corresponding to 20 full cells (40 half cells) connected in series are arranged in parallel, and power [ corresponding to 54 right angles (108 half cells) & 30 right angles (60 half cells) & 3 rows corresponding to 20 right angles (40 half cells) & pentagonal ] can be output.
The arrangement pattern PTb3 shown in fig. 11B is such that, in the arrangement pattern PTb1 shown in fig. 7, the rectangular solar cell modules Mx shown in fig. 8C are arranged on both sides of the module arrangement region β in place of the rectangular solar cell modules M2 shown in fig. 3A, and the rectangular solar cell modules M22 shown in fig. 8B are arranged in the module arrangement region β. In the arrangement pattern PTb3 shown in fig. 11B, 3 full cells (84 half cells) equivalent to the series connection, 6 full cells (60 half cells) equivalent to the series connection, and 6 full cells (40 half cells) equivalent to the series connection, are arranged in parallel, and power [ 3 rows equivalent to 42 right angles (equivalent to 84 half cells) & equivalent to 30 right angles (equivalent to 60 half cells) & equivalent to 20 right angles (equivalent to 40 half cells) ] equivalent to the pentagonal angle is outputted.
[ other embodiments ]
In embodiments 1 to 5, a unit obtained by dividing a standard-sized cell (all cells) into half cells is used as a solar cell, but the solar cell may be divided into 1/4 cells or may be a full-cell.
In addition, in embodiments 1 to 5, the present invention is applicable to a single crystal type solar cell module in which electrodes are formed on both the light receiving surface and the back surface opposite to the light receiving surface, and also applicable to a back electrode type solar cell module (so-called back contact type solar cell module) in which a p-type electrode and an n-type electrode are formed on the back surface opposite to the light receiving surface.
The present invention is not limited to the above-described embodiments, and may be implemented in various other forms. The embodiments referred to are therefore only exemplary in all respects and should not be interpreted as limiting. The scope of the invention is indicated by the claims and is not limited in any way herein. Further, all modifications and variations falling within the equivalent scope of the claims are within the scope of the present invention.
Description of the reference numerals
10 roof
30 solar cell module main body
C solar cell unit
CG unit group
La intermediate electrode wiring
Lb end electrode wiring
Electrode wiring for Lc connection
M1 solar cell module
M2 solar cell module
M21 solar cell module
M22 solar cell module
PTA1 juxtaposition pattern
PTA2 juxtaposition pattern
PTA3 juxtaposition pattern
PTA4 juxtaposition pattern
PTb1 setting pattern
PTb2 setting pattern
PTb3 setting pattern
S string
X parallel arrangement direction
Y orthogonal direction
Alpha setting surface
Beta module setting area
Claims (6)
1. A solar cell module, one or more solar cell unit respectively series connection and constitute a plurality of unit groups, these a plurality of unit groups respectively through middle electrode wiring connect and constitute two cluster groups, these two cluster parallel connection, its characterized in that:
In the two strings, the number of units of the solar battery cells in one first string and the number of units of the solar battery cells in the other second string are equal.
2. The solar cell module according to claim 1, wherein the solar cell unit in the first string and the solar cell unit in the second string are juxtaposed in a predetermined juxtaposed direction of a solar cell module main body, the first string and the second string are juxtaposed in an orthogonal direction orthogonal to the juxtaposed direction, and an end electrode wiring connected to at least one side of the plurality of cell groups is provided at an end of at least one side of the juxtaposed direction of the solar cell module main body.
3. The solar cell module according to claim 2, wherein the end electrode wiring provided at an end portion on one side in the arrangement direction of the solar cell module main bodies is provided along the orthogonal direction.
4. The solar cell module according to any one of claims 1 to 3, wherein at least one of the solar cell units in the first string and the second string is composed of a split unit.
5. The solar cell module according to any one of claims 1 to 4, wherein the solar cell module main body is formed of a polygon having an angle of a right angle and a corner of an angle other than the right angle.
6. The solar cell module according to claim 5, wherein the polygon is a pentagon having three right-angled corners, a quadrangle having two right-angled corners, or a right-angled triangle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-084394 | 2019-04-25 | ||
| JP2019084394A JP2020181905A (en) | 2019-04-25 | 2019-04-25 | Solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111863999A true CN111863999A (en) | 2020-10-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010296415.3A Pending CN111863999A (en) | 2019-04-25 | 2020-04-15 | Solar cell module |
Country Status (2)
| Country | Link |
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| JP (2) | JP2020181905A (en) |
| CN (1) | CN111863999A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350683A (en) * | 1998-06-03 | 1999-12-21 | Sekisui Chem Co Ltd | Solar cell module and solar cell module mount roof |
| WO2009138868A2 (en) * | 2008-05-14 | 2009-11-19 | Coenergia S.R.L. | Modular photovoltaic panel system |
| US20170256661A1 (en) * | 2016-03-02 | 2017-09-07 | Solarcity Corporation | Method of manufacturing photovoltaic panels with various geometrical shapes |
| CN109994567A (en) * | 2017-12-30 | 2019-07-09 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3748344B2 (en) * | 1999-10-12 | 2006-02-22 | ミサワホーム株式会社 | Solar panel |
| JP3692292B2 (en) * | 2000-12-11 | 2005-09-07 | シャープ株式会社 | Solar cell module |
| EP2587334A1 (en) * | 2011-10-24 | 2013-05-01 | Imec | Reconfigurable PV configuration |
| ITMO20120063A1 (en) * | 2012-03-13 | 2013-09-14 | Massimo Venturelli | PHOTOVOLTAIC PANEL |
| CN202888206U (en) * | 2012-09-12 | 2013-04-17 | 英利能源（中国）有限公司 | Solar photovoltaic assembly |
| CN109346538B (en) * | 2014-05-27 | 2022-11-29 | 迈可晟太阳能有限公司 | Overlapping type solar cell module |
| JP2017112175A (en) * | 2015-12-15 | 2017-06-22 | パナソニックＩｐマネジメント株式会社 | Solar cell module |
-
2019
- 2019-04-25 JP JP2019084394A patent/JP2020181905A/en active Pending
-
2020
- 2020-04-15 CN CN202010296415.3A patent/CN111863999A/en active Pending
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2023
- 2023-11-22 JP JP2023198081A patent/JP2024009201A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350683A (en) * | 1998-06-03 | 1999-12-21 | Sekisui Chem Co Ltd | Solar cell module and solar cell module mount roof |
| WO2009138868A2 (en) * | 2008-05-14 | 2009-11-19 | Coenergia S.R.L. | Modular photovoltaic panel system |
| US20170256661A1 (en) * | 2016-03-02 | 2017-09-07 | Solarcity Corporation | Method of manufacturing photovoltaic panels with various geometrical shapes |
| CN109994567A (en) * | 2017-12-30 | 2019-07-09 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
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| Publication number | Publication date |
|---|---|
| JP2024009201A (en) | 2024-01-19 |
| JP2020181905A (en) | 2020-11-05 |
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