WO2011044759A1 - Solar cell module - Google Patents
Solar cell module Download PDFInfo
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- WO2011044759A1 WO2011044759A1 PCT/CN2010/001627 CN2010001627W WO2011044759A1 WO 2011044759 A1 WO2011044759 A1 WO 2011044759A1 CN 2010001627 W CN2010001627 W CN 2010001627W WO 2011044759 A1 WO2011044759 A1 WO 2011044759A1
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- Prior art keywords
- solar cell
- cell module
- solar
- circuits
- solar cells
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- 238000009434 installation Methods 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 85
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 210000003850 cellular structure Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 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
- 238000010248 power generation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H01L31/02—Details
- H01L31/02016—Circuit arrangements of general character for the devices
- H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02021—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for solar cells
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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
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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
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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- 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 the field of photovoltaics, and more particularly to a solar cell module.
- the solar cell module is generally formed by connecting 54 to 72 solar cells in series. In order to protect the solar cell inside the solar cell module, it is desirable to connect a bypass diode in parallel with each solar cell, but considering the cost factor, the prior art
- the interior of the solar cell module is usually constructed as a bypass diode 5 connected in parallel with 18-24 solar cells 4 in series as shown in Fig. 1, but the existing method causes solar cell components in the event of hot spot effect. A local high temperature condition is generated, and when the temperature exceeds the limit, the solar cell 4 is burned out, thereby causing the entire solar cell module to be scrapped.
- the existing solar cell module is usually only provided with one junction box 1, and the current of each branch is collected into one junction box 1 by using a soldering strip 3 (bus bar) inside the solar cell module, and then by the cable.
- Line 2 leads, which increases the length of the component wires.
- the wire cost is increased, the series resistance is also increased, and the overall output power of the bottom assembly is lowered, especially when the solar cell modules are composed of the power generation system.
- the resistance of the cable is increased due to the increase in length, as shown in Figure 2.
- junction boxes of the existing solar cell modules are installed in the head portion of the solar cell module, and the mounting brackets required for use in the solar cell power plant cause a relatively high system installation cost.
- An object of the present invention is to solve the above problems, so that a solar cell can be better protected and the cost is not greatly improved, and the series resistance of the system can be lowered, and the output power of the solar cell module can be improved.
- the present invention provides a solar cell module comprising two loops, the two loops being respectively located on opposite sides of the solar cell module, and the two loops respectively sinking to the junction box, the wiring The cartridge is located in the middle of the solar cell module.
- said two circuits each comprise at least one branch formed by a plurality of solar cells and diodes being connected in parallel.
- At least one of the two loops is formed by a plurality of solar cells connected in parallel with the diodes, respectively, to a junction box.
- the two opposite positions of the two loops are connected to the same junction box by a branch formed by a plurality of solar cells and diodes being connected in parallel.
- each of said branches comprises 9-14 solar cells.
- each of said branches comprises 10-12 solar cells.
- the two circuits respectively comprise three branches formed by a plurality of battery modules connected in parallel with the diodes, and the two circuits are respectively connected to the three junction boxes.
- FIG. 1 is a circuit diagram of a prior art solar cell module
- FIG. 2 is a schematic view showing the connection of a solar cell module of the prior art
- FIG. 3 is a schematic circuit diagram of an embodiment of a solar cell module provided by the present invention
- FIG. 4 is a schematic view of an embodiment of a solar cell module provided by the present invention
- FIG. 5 is a schematic diagram of the connection of two solar cell modules in an embodiment of the solar cell module provided by the present invention.
- DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention. Throughout the description, it is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
- 3 is a schematic circuit diagram of an embodiment of a solar cell module provided by the present invention, and FIG.
- FIG. 4 is a schematic view of an embodiment of a solar cell module provided by the present invention. As shown in FIG. 3 and FIG. 4, the solar cell of the embodiment is shown in FIG.
- the assembly 6 consists of two circuits, two on each side of the solar cell assembly, and the two circuits are respectively connected to the junction box 1, which is located in the middle of the solar cell module.
- a solar cell module 6 including 72 solar cells is divided into two sub-solar cell assemblies 61, 62 which are connected in series by 36 solar cells, and two The loops are not connected inside the solar cell module, that is, there is no electrical connection between the two sub-solar cell assemblies 61, 62 inside the solar cell module 6, and the two loops respectively flow to the junction box 1, each of which includes each other
- Two separate bypass diodes 5 are connected in parallel with the sub-sun battery modules 61, 62 on both sides.
- each junction box is connected to two corresponding branches from the positions of the two circuits, but the drawing is only an example. As a limitation of the present invention, it is also possible that each of the two loops is connected to a junction box or several of the branches are connected to one junction box.
- the solar cell module 6 is internally divided into two independent sub-solar cell assemblies 61, 62, and the two sub-solar cell assemblies 61, 62 are respectively connected to the junction box 1 located in the middle of the solar cell module 6, so that the bus bars
- the length of 3 can be shortened, the series resistance is reduced, and the overall output performance of the solar cell module is improved.
- the invention entitled “Solar battery assembly frame, solar cell assembly and mounting system thereof” a technical solution for mounting a solar cell module using a structurally improved frame and mounting beam is disclosed. It allows the solar module to be installed with fewer mounting profiles and is quick, convenient, efficient, and time-saving.
- the junction box 1 of the solar cell module of the present embodiment is located at the center of the solar cell module, and is well suited to the solar cell module mounting system of the invention application of the above-mentioned application No. 200910137269. As can be seen from Fig. 5 and Fig. 2, this can shorten the length of the cable connected between the solar cell modules, thereby reducing the resistance of the system constituted by the solar cell module, improving the output performance of the system and reducing the cost of the system.
- the sub-solar cell assemblies 61, 62 include at least one branch, each branch routing a plurality of solar cells in parallel with the diodes, wherein each The branch can include 9-14 solar cells.
- each branch may include 10-12 solar cells, and the branches may be connected by wires (bus bars) inside the solar cell module.
- each of the sub-solar cell components 61, 62 can Including three branches, each of which can be formed by 12 solar cells 4 and a bypass diode 5 in parallel, and then merges through the bus bar 3 to three junction boxes 1 located in the middle of the solar cell module, the diode 5 In the junction box, the cable 2 is led out of the junction box 1.
- each of the sub-solar cell assemblies 61, 62 may include three branches, wherein each branch may be formed by connecting 10 solar cells 4 and a bypass diode 5 in parallel, and then The bus bar 3 is merged into the three junction boxes 1 located at the center of the solar cell module, and the cable 2 is taken out from the junction box 1.
- Each of the junction boxes 1 described above includes two bypass diodes 5 independent of each other, in parallel with each of the two sides.
- the reverse voltage of 12 solar cells is about 7V, so when the solar cell component has a hot spot effect, even after the bypass diode is broken down, It can guarantee that the solar cell will not be burnt due to excessive temperature when the hot spot effect occurs, even if the solar cell with relatively poor performance (Irev ⁇ 2A/-8V) is not problematic.
- this can shorten the length of the cable connected between the solar cell modules, thereby reducing the resistance of the system constituted by the solar cell module, improving the output performance of the system and reducing the cost of the system.
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- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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Abstract
A solar cell module is provided. The module is composed of two loop circuits. The two loop circuits are located respectively on two sides of the solar cell module, and converge respectively to the junction box (1) which is located in the middle of the solar cell module. Each of the two loop circuits includes at least one branch circuit formed of plural solar cells (4) and diodes (5) in parallel connection. The solar cell module can effectively prevent damage to solar cell due to over-high temperature, reduce the series resistance of the solar cell module, and reduce the series resistance and installation costs of the system consisted of the solar cell module.
Description
一种太阳电池组件 Solar battery component
技术领域 本发明涉及光伏领域， 尤其涉及一种太阳电池组件。 TECHNICAL FIELD The present invention relates to the field of photovoltaics, and more particularly to a solar cell module.
背景技术 近年来， 在发展可替代能源方面， 太阳电池技术获得巨大突破， 应用也 愈加广泛。 但是目前太阳电池组件一般存在以下问题： Background Art In recent years, in the development of alternative energy sources, solar cell technology has achieved tremendous breakthroughs and applications have become more widespread. However, the current solar cell components generally have the following problems:
太阳电池组件一般由 54至 72片太阳电池串联而成， 在太阳电池组件内 部， 为了保护太阳电池， 理想状态是为每个太阳电池并联一个旁路二极管， 但是考虑到成本因素， 因此现有技术的太阳电池组件内部通常构造为如图 1 所示的 18-24片太阳电池 4串联的支路并联一个旁路二极管 5， 但是现有的 做法， 在发生热斑效应时， 会使太阳电池组件产生局部高温情况， 当温度超 过极限而使太阳电池 4烧坏， 从而导致整个太阳电池组件报废。 The solar cell module is generally formed by connecting 54 to 72 solar cells in series. In order to protect the solar cell inside the solar cell module, it is desirable to connect a bypass diode in parallel with each solar cell, but considering the cost factor, the prior art The interior of the solar cell module is usually constructed as a bypass diode 5 connected in parallel with 18-24 solar cells 4 in series as shown in Fig. 1, but the existing method causes solar cell components in the event of hot spot effect. A local high temperature condition is generated, and when the temperature exceeds the limit, the solar cell 4 is burned out, thereby causing the entire solar cell module to be scrapped.
而且， 如图 1所示， 现有太阳电池组件通常只配置一个接线盒 1， 通过 在太阳电池组件内部使用焊带 3 (汇流条）将各支路电流汇总到一个接线盒 1 后再由电缆线 2 引出， 这样的做法会增加组件导线的长度， 在增加导线成本 的同时也会增加串联电阻， 降底组件整体的输出功率， 尤其是在太阳电池组 件组成发电系统时， 太阳电池组件之间的电缆线的电阻由于长度的增加而增 加， 如图 2所示。 Moreover, as shown in FIG. 1, the existing solar cell module is usually only provided with one junction box 1, and the current of each branch is collected into one junction box 1 by using a soldering strip 3 (bus bar) inside the solar cell module, and then by the cable. Line 2 leads, which increases the length of the component wires. When the wire cost is increased, the series resistance is also increased, and the overall output power of the bottom assembly is lowered, especially when the solar cell modules are composed of the power generation system. The resistance of the cable is increased due to the increase in length, as shown in Figure 2.
另外，现有的太阳电池组件的接线盒都是安装在太阳电池组件的头部位 置， 在太阳电池电站上使用时所需的安装支架较多导致系统安装成本比较高。 In addition, the junction boxes of the existing solar cell modules are installed in the head portion of the solar cell module, and the mounting brackets required for use in the solar cell power plant cause a relatively high system installation cost.
发明内容 本发明的目的在于解决上述问题， 使得太阳电池能够得到更好的保护且 成本不会大幅提高， 并且能够降低系统的串联电阻、 提高太阳电池组件的输 出功率。
为此， 本发明提供一种太阳电池组件， 其由两个回路组成， 所述两个回 路分别位于所述太阳电池组件的两侧， 且所述两个回路分别汇流至接线盒， 所述接线盒位于所述太阳电池组件的中部。 SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, so that a solar cell can be better protected and the cost is not greatly improved, and the series resistance of the system can be lowered, and the output power of the solar cell module can be improved. To this end, the present invention provides a solar cell module comprising two loops, the two loops being respectively located on opposite sides of the solar cell module, and the two loops respectively sinking to the junction box, the wiring The cartridge is located in the middle of the solar cell module.
作为优选， 所述两个回路分别包括至少一个由多个太阳电池与二极管并 联而形成的支路。 Advantageously, said two circuits each comprise at least one branch formed by a plurality of solar cells and diodes being connected in parallel.
作为优选， 所述两个回路的至少一个由多个太阳电池与二极管并联而形 成的支路均分别汇流至一接线盒。 Preferably, at least one of the two loops is formed by a plurality of solar cells connected in parallel with the diodes, respectively, to a junction box.
作为优选， 所述两个回路的位置相对的两个由多个太阳电池与二极管并 联而形成的支路汇流至同一接线盒。 Preferably, the two opposite positions of the two loops are connected to the same junction box by a branch formed by a plurality of solar cells and diodes being connected in parallel.
作为优选， 每个所述支路包括 9-14片太阳电池。 Preferably, each of said branches comprises 9-14 solar cells.
作为优选， 每个所述支路包括 10-12片太阳电池。 Preferably, each of said branches comprises 10-12 solar cells.
作为优选， 所述两个回路分别包括 3 个由多个电池组件与二极管并联而 形成的支路， 所述两个回路各汇流至 3个所述接线盒。 Preferably, the two circuits respectively comprise three branches formed by a plurality of battery modules connected in parallel with the diodes, and the two circuits are respectively connected to the three junction boxes.
通过本发明的太阳电池组件， 可以有效地保证太阳电池组件中的旁路二 极管和太阳电池， 不会因温度过高而使组件损坏， 并且可以降低太阳电池组 件整体的串联电阻， 尤其可以显著降低本发明的太阳电池组件组成的系统的 串联电阻及系统安装成本。 附图说明 图 1为现有技术的太阳电池组件的电路示意图； By the solar cell module of the present invention, the bypass diode and the solar cell in the solar cell module can be effectively ensured, the component is not damaged due to excessive temperature, and the series resistance of the entire solar cell module can be reduced, in particular, can be significantly reduced. The series resistance and system installation cost of the system composed of the solar cell module of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of a prior art solar cell module;
图 2为现有技术的太阳电池组件连接示意图； 2 is a schematic view showing the connection of a solar cell module of the prior art;
图 3为本发明提供的太阳电池组件的一个实施例的电路示意图； 图 4为本发明提供的太阳电池组件的一个实施例的示意图； 3 is a schematic circuit diagram of an embodiment of a solar cell module provided by the present invention; FIG. 4 is a schematic view of an embodiment of a solar cell module provided by the present invention;
图 5 为本发明提供的太阳电池组件的一个实施例中两个太阳电池组件相 连的示意图； 具体实施方式 下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行 清楚、 完整的描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而 不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做 出创造性劳动的前提下所获得的所有其他实施例， 都属于本发明保护的范围。
图 3为本发明提供的太阳电池组件的一个实施例的电路示意图， 图 4为 本发明提供的太阳电池组件的一个实施例的示意图， 如图 3及图 4所示， 本 实施例的太阳电池组件 6 由两个回路组成， 两个回路分别位于太阳电池组件 的两侧， 且两个回路分别汇流至接线盒 1， 接线盒 1位于太阳电池组件的中 部。 FIG. 5 is a schematic diagram of the connection of two solar cell modules in an embodiment of the solar cell module provided by the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention. Throughout the description, it is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. 3 is a schematic circuit diagram of an embodiment of a solar cell module provided by the present invention, and FIG. 4 is a schematic view of an embodiment of a solar cell module provided by the present invention. As shown in FIG. 3 and FIG. 4, the solar cell of the embodiment is shown in FIG. The assembly 6 consists of two circuits, two on each side of the solar cell assembly, and the two circuits are respectively connected to the junction box 1, which is located in the middle of the solar cell module.
以 72片太阳电池组成的太阳电池组件为例， 该实施例中， 将包括 72片 太阳电池的太阳电池组件 6分为两个由 36片太阳电池串联的子太阳电池组件 61、 62， 并且两个回路在太阳电池组件内部没有连通， 即两个子太阳电池组 件 61、 62之间在太阳电池组件 6内部没有电性连接， 两个回路分别汇流至接 线盒 1， 每个接线盒 1中包括彼此独立的两个旁路二极管 5， 分别与两侧的子 太阳电池组件 61、 62并联。 虽然附图中为三个接线盒， 且每个接线盒中有两 个旁路二极管， 每个接线盒汇接两个分别来自两个回路的位置相对应的支路， 但是附图仅为示例， 不作为对本发明的限定， 也可以是两个回路中的每个支 路分别汇接至一个接线盒或其中几个支路共同汇接至一个接线盒。 这样， 将 太阳电池组件 6在内部分成两个独立的子太阳电池组件 61、 62， 且两个子太 阳电池组件 61、 62分别汇流至位于太阳电池组件 6中部的接线盒 1的方式， 使得汇流条 3 的长度可以缩短， 减少串联电阻， 提高太阳电池组件的整体输 出性能。 Taking a solar cell module composed of 72 solar cells as an example, in this embodiment, a solar cell module 6 including 72 solar cells is divided into two sub-solar cell assemblies 61, 62 which are connected in series by 36 solar cells, and two The loops are not connected inside the solar cell module, that is, there is no electrical connection between the two sub-solar cell assemblies 61, 62 inside the solar cell module 6, and the two loops respectively flow to the junction box 1, each of which includes each other Two separate bypass diodes 5 are connected in parallel with the sub-sun battery modules 61, 62 on both sides. Although there are three junction boxes in the drawing, and there are two bypass diodes in each junction box, each junction box is connected to two corresponding branches from the positions of the two circuits, but the drawing is only an example. As a limitation of the present invention, it is also possible that each of the two loops is connected to a junction box or several of the branches are connected to one junction box. Thus, the solar cell module 6 is internally divided into two independent sub-solar cell assemblies 61, 62, and the two sub-solar cell assemblies 61, 62 are respectively connected to the junction box 1 located in the middle of the solar cell module 6, so that the bus bars The length of 3 can be shortened, the series resistance is reduced, and the overall output performance of the solar cell module is improved.
在申请号为 200910137269. 3、 发明名称为 "太阳电池组件边框、 太阳电 池组件及其安装系统" 的发明申请中， 公开了利用结构改进的边框和安装梁 对太阳电池组件进行安装的技术方案， 其可以使得太阳电池组件在安装时使 用更少的安装型材， 并且快速、 方便、 高效， 省时省力。 本实施例的太阳电 池组件的接线盒 1 位于太阳电池组件的中部位置， 可以很好地配合上述的申 请号为 200910137269. 3的发明申请的太阳电池组件安装系统。 从图 5与图 2 中可以看出， 这样可以缩短太阳电池组件之间连接的电缆的长度， 从而降低 太阳电池组件构成的系统的电阻， 提高系统的输出性能且降低系统的成本。 In the invention application No. 200910137269. 3, the invention entitled "Solar battery assembly frame, solar cell assembly and mounting system thereof", a technical solution for mounting a solar cell module using a structurally improved frame and mounting beam is disclosed. It allows the solar module to be installed with fewer mounting profiles and is quick, convenient, efficient, and time-saving. The junction box 1 of the solar cell module of the present embodiment is located at the center of the solar cell module, and is well suited to the solar cell module mounting system of the invention application of the above-mentioned application No. 200910137269. As can be seen from Fig. 5 and Fig. 2, this can shorten the length of the cable connected between the solar cell modules, thereby reducing the resistance of the system constituted by the solar cell module, improving the output performance of the system and reducing the cost of the system.
在本发明的另一个实施例中， 上述的子太阳电池组件 61、 62 (即， 两个 回路） 包括至少一个支路， 每个支路由多个太阳电池与二极管并联而成， 其 中， 每个支路可包括 9-14片太阳电池。 优选的， 每个支路可包括 10-12片太 阳电池， 支路之间可以通过太阳电池组件内部的导线 （汇流条） 进行连接。 以 72片太阳电池的太阳电池组件为例， 每个子太阳电池组件 61、 62均可以
包括 3个支路， 其中每个支路可以由 12片太阳电池 4与旁路二极管 5并联而 成， 然后经过汇流条 3汇流至位于太阳电池组件中部位置的 3个接线盒 1中， 二极管 5在接线盒中， 再从接线盒 1中引出电缆 2。 以 60片太阳电池的太阳 电池组件为例， 每个子太阳电池组件 61、 62均可以包括 3个支路， 其中每个 支路可以由 10片太阳电池 4与旁路二极管 5并联而成， 然后经过汇流条 3汇 流至位于太阳电池组件中部位置的 3个接线盒 1中， 再从接线盒 1中引出电 缆 2。 上述的每个接线盒 1中包括彼此独立的两个旁路二极管 5， 分别与两侧 的每个支路并联。 In another embodiment of the present invention, the sub-solar cell assemblies 61, 62 (ie, two loops) include at least one branch, each branch routing a plurality of solar cells in parallel with the diodes, wherein each The branch can include 9-14 solar cells. Preferably, each branch may include 10-12 solar cells, and the branches may be connected by wires (bus bars) inside the solar cell module. Taking a solar cell module of 72 solar cells as an example, each of the sub-solar cell components 61, 62 can Including three branches, each of which can be formed by 12 solar cells 4 and a bypass diode 5 in parallel, and then merges through the bus bar 3 to three junction boxes 1 located in the middle of the solar cell module, the diode 5 In the junction box, the cable 2 is led out of the junction box 1. Taking a solar cell module of 60 solar cells as an example, each of the sub-solar cell assemblies 61, 62 may include three branches, wherein each branch may be formed by connecting 10 solar cells 4 and a bypass diode 5 in parallel, and then The bus bar 3 is merged into the three junction boxes 1 located at the center of the solar cell module, and the cable 2 is taken out from the junction box 1. Each of the junction boxes 1 described above includes two bypass diodes 5 independent of each other, in parallel with each of the two sides.
这样， 由于串联太阳电池数量减少， 以 12片太阳电池为例， 12片太阳 电池的反向电压在 7V左右， 因此当太阳电池组件发生热斑效应时， 即使旁路 二极管被击穿后， 也可保证发生热斑效应时太阳电池不至于因温度过高而被 烧毁， 即使是目前性能相对较差（Irev〈2A/-8V)的太阳电池也不会出现问题。 而且从图 5与图 2中可以看出， 这样可以缩短太阳电池组件之间连接的电缆 的长度， 从而降低太阳电池组件构成的系统的电阻， 提高系统的输出性能且 降低系统的成本。 Thus, since the number of solar cells in series is reduced, taking 12 solar cells as an example, the reverse voltage of 12 solar cells is about 7V, so when the solar cell component has a hot spot effect, even after the bypass diode is broken down, It can guarantee that the solar cell will not be burnt due to excessive temperature when the hot spot effect occurs, even if the solar cell with relatively poor performance (Irev<2A/-8V) is not problematic. Moreover, as can be seen from Fig. 5 and Fig. 2, this can shorten the length of the cable connected between the solar cell modules, thereby reducing the resistance of the system constituted by the solar cell module, improving the output performance of the system and reducing the cost of the system.
总之， 以上所述仅为本发明的实施例， 并非用于限定本发明的保护范围， 而是用于说明本发明。 凡在本发明的精神和原则之内， 所作的任何修改、 等 同替换、 改进等， 均应包含在本发明的保护范围之内。
In conclusion, the above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, but is intended to illustrate the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
Claims
1、 一种太阳电池组件， 其特征在于， 其由两个回路组成， 所述两个回路 分别位于所述太阳电池组件的两侧， 且所述两个回路分别汇流至接线盒， 所 述接线盒位于所述太阳电池组件的中部。 A solar cell module, characterized in that it consists of two circuits, the two circuits being respectively located on both sides of the solar cell module, and the two circuits are respectively connected to a junction box, the wiring The cartridge is located in the middle of the solar cell module.
2、 如权利要求 1所述的太阳电池组件， 其特征在于， 所述两个回路分别 包括至少一个由多个太阳电池与二极管并联而形成的支路。 The solar cell module according to claim 1, wherein the two circuits respectively include at least one branch formed by a plurality of solar cells and diodes connected in parallel.
3、 如权利要求 2所述的太阳电池组件， 其特征在于， 所述两个回路的至 少一个由多个太阳电池与二极管并联而形成的支路均分别汇流至一接线盒。 3. The solar cell module according to claim 2, wherein at least one of the two circuits formed by a plurality of solar cells and diodes connected in parallel is respectively connected to a junction box.
4、 如权利要求 3所述的太阳电池组件， 其特征在于， 所述两个回路的位 置相对的两个由多个太阳电池与二极管并联而形成的支路汇流至同一接线 品. 4. The solar cell module according to claim 3, wherein the two circuits are opposite in position, and the two branches formed by the parallel connection of the plurality of solar cells and the diodes are connected to the same wiring.
5、 如权利要求 2至 4任一项所述的太阳电池组件， 其特征在于， 每个所 述支路包括 9-14片太阳电池。 The solar cell module according to any one of claims 2 to 4, characterized in that each of said branches comprises 9-14 solar cells.
6、 如权利要求 5所述的太阳电池组件， 其特征在于， 每个所述支路包括 10-12片太阳电池。 6. The solar cell module of claim 5, wherein each of said branches comprises 10-12 solar cells.
7、 如前述任意一项权利要求所述的太阳电池组件， 其特征在于， 所述两 个回路分别包括 3个由多个太阳电池与二极管并联而形成的支路， 所述两个 回路各汇流至 3个所述接线盒。 The solar cell module according to any of the preceding claims, wherein the two circuits respectively comprise three branches formed by a plurality of solar cells connected in parallel with the diodes, and the two circuits are respectively connected to each other. Up to 3 of the junction boxes.
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| CN200910179860.5A CN102044587A (en) | 2009-10-15 | 2009-10-15 | Solar module |
| CN200910179860.5 | 2009-10-15 |
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| EP3017520B1 (en) | 2013-07-05 | 2020-10-14 | REC Solar Pte. Ltd. | Solar cell assembly |
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| CN102779883B (en) * | 2012-05-30 | 2015-04-08 | 碧辟普瑞太阳能有限公司 | Solar photovoltaic module based on solar cell units |
| CN102881752A (en) * | 2012-08-27 | 2013-01-16 | 友达光电股份有限公司 | Solar device |
| CN102931241B (en) * | 2012-11-26 | 2015-11-11 | 晶科能源有限公司 | A kind of crystalline silicon component |
| CN103354245A (en) * | 2013-07-02 | 2013-10-16 | 浙江正泰太阳能科技有限公司 | Crystalline silicon battery assembly and crystalline silicon battery system |
| CN107452826B (en) * | 2017-07-26 | 2019-10-29 | 河北曹妃甸汉能薄膜太阳能有限公司 | Hull cell terminal plate, sub- battery component and its assemble method |
| CN107947324A (en) * | 2017-12-11 | 2018-04-20 | 杭州博阳太阳能科技有限公司 | A kind of solar electric power supply system |
| CN108615777B (en) * | 2018-06-15 | 2024-03-22 | 浙江晶科能源有限公司 | Photovoltaic module |
| CN109638099A (en) * | 2018-12-25 | 2019-04-16 | 四川钟顺太阳能开发有限公司 | A kind of electrical connection methods of solar module and solar module using this method |
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