WO2012171421A1 - Junction box of photovoltaic cell and production method thereof - Google Patents
Junction box of photovoltaic cell and production method thereof Download PDFInfo
- Publication number
- WO2012171421A1 WO2012171421A1 PCT/CN2012/075072 CN2012075072W WO2012171421A1 WO 2012171421 A1 WO2012171421 A1 WO 2012171421A1 CN 2012075072 W CN2012075072 W CN 2012075072W WO 2012171421 A1 WO2012171421 A1 WO 2012171421A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal conductive
- conductive sheet
- junction box
- photovoltaic cell
- box body
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 60
- 210000004692 intercellular junction Anatomy 0.000 claims description 12
- 238000005476 soldering Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000003466 welding Methods 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 abstract 1
- 230000008520 organization Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
-
- 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
-
- 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 invention belongs to the field of solar photovoltaic technology, and in particular relates to a photovoltaic cell junction box and a production method of the photovoltaic battery junction box.
- the photovoltaic cell junction box includes a plastic case with a plurality of diodes and metal conductive sheets, which are key components of the photovoltaic cell junction box.
- the welding and testing of diodes is the most important and the most difficult process in the production of photovoltaic cell junction boxes.
- the photovoltaic cell junction box is produced by first loading a metal conductive sheet into a plastic case, soldering the diode to the metal conductive sheet, and then sealing and assembling the plastic case.
- the disadvantage of using such an operation process is that it is difficult to weld the metal conductive sheet and the diode in the junction box, so the entire assembly process has to be completed in a factory with high equipment conditions and management level, and is not suitable. Cooperate in division of labor, which is less efficient.
- the object of the present invention is to provide a method for producing a photovoltaic cell junction box, and a photovoltaic cell junction box produced thereby, which can reduce the assembly difficulty of the junction box and improve the welding quality of the metal conductive sheet and the diode. Optimize the quality management process for junction boxes.
- a photovoltaic cell junction box comprising a plastic case body, the case body is provided with a plurality of metal conductive sheets, and adjacent metal conductive sheets are connected by diodes,
- the utility model is characterized in that: the metal conductive sheet is cut from a single piece of metal sheet at a joint; the bottom surface of the plastic box body has a small hole corresponding to a joint of each two adjacent metal conductive sheets.
- the metal conductive sheet has a mounting hole, and a corresponding column is provided at the bottom of the box body, and protrudes from the mounting hole, and the end portion is thermally melted to fix the metal conductive sheet.
- the technical solution adopted by the present invention is as follows:
- the method for producing a photovoltaic cell junction box includes the following steps: forming an integral metal conductive sheet according to a designed shape, the metal conductive sheet being divided into several regions in outline, but Physically connected as a whole; soldering the diode to the metal conductive sheet; loading the diode-bonded metal conductive sheet into the box of the junction box, the box opening at the connecting portion corresponding to the metal conductive sheet Hole; the tool extends into the through hole to cut the metal conductive sheet, making it physically separate pieces.
- the method of the invention performs diode welding before loading the metal conductive sheet into the plastic box. Since the metal conductive sheet is generally a flat sheet, it is suitable for operation by using automatic welding equipment, ensuring welding quality and improving welding. effectiveness.
- the present invention places the process involving higher technical requirements in the front, and the subsequent process is relatively simple, so that it is possible to adopt a production method of off-site dispensing, that is, to complete the second factory. After the specification of the pole tube and the metal conductive sheet is welded, it is transported to the branch factory for assembly of the plastic box and the conductive sheet is broken, which is more conducive to production organization and quality management. It can be seen that the method of the invention optimizes the production process.
- the metal conductive sheet After the monolithic metal conductive sheet which has been soldered with the diode is assembled into the junction box of the invention, the metal conductive sheet has a mounting hole, and a corresponding position is provided at the bottom of the box body, and the protruding post is mounted on the metal conductive sheet. Hole, using a tool to melt the stud, so that the metal conductive sheet is fixed in the junction box; at the same time, the bottom surface of the plastic box of the junction box has a small hole corresponding to the joint of each two adjacent metal conductive sheets, The small holes can be cut by a tool at the joint to form a plurality of small metal conductive sheets separated from each other.
- Figure 1 is a schematic view of the structure of the present invention.
- Figure 2 is a schematic illustration of the metal conductive sheet of the present invention mounted in a junction box.
- Figure 3 is a schematic view of the bottom of the junction box after the metal conductive sheet of the present invention is installed in the junction box.
- the four metal conductive sheets 2 are integrally connected through the joint 7, and the metal conductive sheet 2 is provided with a mounting hole 5 corresponding to the stud 3 on the bottom of the junction box case 1 by the direction of the broken line shown in FIG.
- the bottom of the junction box housing 1 has a small hole 6.
- the diode 4 is connected to the metal conductive sheet, and the stud 3 at the bottom of the casing protrudes from the mounting hole 5 of the metal conductive sheet 2.
- the adjacent two metal conductive sheets 2 joints 7 are located at the small holes 6 at the bottom of the casing.
- the metal conductive sheets 2 can be separated by two by using the tool to cut the joint 7 at the small hole 6.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
A junction box of a photovoltaic cell and the production method thereof. A plurality of metal conductive strips (2) are arranged in the junction box body (1). The metal conductive strips are obtained by cutting a whole metal sheet at the joint areas (7). A bottom surface of a plastic box body is provided with holes (6) corresponding to the joint areas of each two adjacent metal conductive strips. The method comprises the following steps. An integral metal conductive sheet is manufactured according to the designed shape. The metal conductive sheet is divided into a plurality of areas in profile, which connect into a whole physically. Diodes (4) are welded onto the metal conductive sheet. The metal conductive sheet with diodes is installed into the junction box body. The metal conductive sheet is cut by stretching a tool into the holes so as to achieve a plurality of separate mutually strips physically. The method reduces assembly difficulty, raises the welding quality of the metal conductive sheet and the diode, and improves production efficiency.
Description
说明书 一种光伏电池接线盒及其生产方法 Photovoltaic battery junction box and production method thereof
技术领域 Technical field
本发明属于太阳能光伏技术领域，特别是涉及一种光伏电池接线盒， 以及光伏电 池接线盒的生产方法。 The invention belongs to the field of solar photovoltaic technology, and in particular relates to a photovoltaic cell junction box and a production method of the photovoltaic battery junction box.
背景技术 Background technique
光伏电池接线盒包括塑料盒体，盒体内装有若干二极管和金属导电片，此二者是 光伏电池接线盒的关键部件。 同时， 二极管的焊接、检测是光伏电池接线盒生产 过程中最重要， 也是难度最大的工序。现有技术中光伏电池接线盒的生产方法是 先将金属导电片装进塑料盒体内， 再把二极管焊接在金属导电片上，然后把塑料 盒体密封组装完毕。采用这样的操作工艺的缺点是： 在接线盒里将金属导电片和 二极管进行焊接的操作难度较大，因此不得不将整个装配过程放在具有较高设备 条件和管理水平的工厂中完成， 不适于分工合作， 从而效率较低。 The photovoltaic cell junction box includes a plastic case with a plurality of diodes and metal conductive sheets, which are key components of the photovoltaic cell junction box. At the same time, the welding and testing of diodes is the most important and the most difficult process in the production of photovoltaic cell junction boxes. In the prior art, the photovoltaic cell junction box is produced by first loading a metal conductive sheet into a plastic case, soldering the diode to the metal conductive sheet, and then sealing and assembling the plastic case. The disadvantage of using such an operation process is that it is difficult to weld the metal conductive sheet and the diode in the junction box, so the entire assembly process has to be completed in a factory with high equipment conditions and management level, and is not suitable. Cooperate in division of labor, which is less efficient.
发明内容 Summary of the invention
本发明的目的是提供一种光伏电池接线盒的生产方法，以及一种由此生产的光伏 电池接线盒，其操作工艺可以降低接线盒的组装难度，提高金属导电片和二极管 的焊接质量， 同时优化接线盒的质量管理流程。 The object of the present invention is to provide a method for producing a photovoltaic cell junction box, and a photovoltaic cell junction box produced thereby, which can reduce the assembly difficulty of the junction box and improve the welding quality of the metal conductive sheet and the diode. Optimize the quality management process for junction boxes.
为此， 本发明为产品所采用的技术方案是这样的： 一种光伏电池接线盒， 包括塑 料盒体， 盒体内装有若干金属导电片， 相邻的金属导电片之间以二极管相连， 其 特征在于： 所述的金属导电片为整块的金属片在连接处切断而得； 塑料盒体底面 对应于每两片相邻金属导电片的连接处带有小孔。 To this end, the technical solution adopted by the present invention for the product is as follows: A photovoltaic cell junction box comprising a plastic case body, the case body is provided with a plurality of metal conductive sheets, and adjacent metal conductive sheets are connected by diodes, The utility model is characterized in that: the metal conductive sheet is cut from a single piece of metal sheet at a joint; the bottom surface of the plastic box body has a small hole corresponding to a joint of each two adjacent metal conductive sheets.
本发明进一步改进， 金属导电片上带有安装孔， 盒体底部相应位置设有凸柱， 从 安装孔中伸出， 其端部热熔后固定金属导电片。 According to the invention, the metal conductive sheet has a mounting hole, and a corresponding column is provided at the bottom of the box body, and protrudes from the mounting hole, and the end portion is thermally melted to fix the metal conductive sheet.
本发明为方法所采用的技术方案是这样的： 光伏电池接线盒的生产方法，包括如 下步骤： 按照设计的形状制作整体的金属导电片， 该金属导电片在轮廓上分为若 干个区域， 但在物理上是连接为一个整体的； 将二极管焊接到金属导电片上； 将 焊好二极管的金属导电片装入接线盒的盒体，该盒体在对应于金属导电片的连接 部分处开有通孔； 工具伸入通孔中将金属导电片切断， 使其从物理上成为互相独 立的若干片。 The technical solution adopted by the present invention is as follows: The method for producing a photovoltaic cell junction box includes the following steps: forming an integral metal conductive sheet according to a designed shape, the metal conductive sheet being divided into several regions in outline, but Physically connected as a whole; soldering the diode to the metal conductive sheet; loading the diode-bonded metal conductive sheet into the box of the junction box, the box opening at the connecting portion corresponding to the metal conductive sheet Hole; the tool extends into the through hole to cut the metal conductive sheet, making it physically separate pieces.
本发明的方法在将金属导电片装入塑料盒体之前就进行二极管的焊接，由于金属 导电片总体上是平坦的薄片， 故适于使用自动化焊接设备来操作，保证了焊接质 量， 提高了焊接效率。 另一方面， 本发明将涉及较高技术要求的工序放在前道， 而后道工序相对简单，这样就有可能采取异地分装的生产方法， 即在总厂完成二
说明书 极管和金属导电片的焊接后，运到分厂进行塑料盒的装配及导电片冲断，这样更 有利于生产组织和质量管理。 可见， 本发明的方法优化了生产工艺。 The method of the invention performs diode welding before loading the metal conductive sheet into the plastic box. Since the metal conductive sheet is generally a flat sheet, it is suitable for operation by using automatic welding equipment, ensuring welding quality and improving welding. effectiveness. On the other hand, the present invention places the process involving higher technical requirements in the front, and the subsequent process is relatively simple, so that it is possible to adopt a production method of off-site dispensing, that is, to complete the second factory. After the specification of the pole tube and the metal conductive sheet is welded, it is transported to the branch factory for assembly of the plastic box and the conductive sheet is broken, which is more conducive to production organization and quality management. It can be seen that the method of the invention optimizes the production process.
在将已经和二极管焊接在一起的整块金属导电片装配到本发明接线盒中后，金属 导电片带有安装孔，盒体底部相应位置设有凸柱， 凸柱穿过金属导电片上的安装 孔， 使用工具将凸柱熔倒， 从而使得金属导电片固定在接线盒内； 同时接线盒塑 料盒盒体底面对应于每两片相邻金属导电片的连接处均带有小孔，通过所述小孔 可用工具将整块金属导电片在连接处切断， 成为几片相互分离的小金属导电片。 附图说明 After the monolithic metal conductive sheet which has been soldered with the diode is assembled into the junction box of the invention, the metal conductive sheet has a mounting hole, and a corresponding position is provided at the bottom of the box body, and the protruding post is mounted on the metal conductive sheet. Hole, using a tool to melt the stud, so that the metal conductive sheet is fixed in the junction box; at the same time, the bottom surface of the plastic box of the junction box has a small hole corresponding to the joint of each two adjacent metal conductive sheets, The small holes can be cut by a tool at the joint to form a plurality of small metal conductive sheets separated from each other. DRAWINGS
下面结合附图对本发明进行进一步详细的说明。 The invention will now be described in further detail with reference to the accompanying drawings.
图 1是本发明结构示意图。 Figure 1 is a schematic view of the structure of the present invention.
图 2是本发明金属导电片安装在接线盒内的示意图。 Figure 2 is a schematic illustration of the metal conductive sheet of the present invention mounted in a junction box.
图 3是本发明金属导电片安装在接线盒内后接线盒底部示意图。 Figure 3 is a schematic view of the bottom of the junction box after the metal conductive sheet of the present invention is installed in the junction box.
具体实施方式 detailed description
参见图 1、 图 2。 4个金属导电片 2通过连接处 7整体连接， 金属导电片 2上带 有安装孔 5， 由图 1所示虚线方向， 安装孔 5与接线盒盒体 1的底部上的凸柱 3 对应， 接线盒盒体 1底部带有小孔 6。 See Figure 1 and Figure 2. The four metal conductive sheets 2 are integrally connected through the joint 7, and the metal conductive sheet 2 is provided with a mounting hole 5 corresponding to the stud 3 on the bottom of the junction box case 1 by the direction of the broken line shown in FIG. The bottom of the junction box housing 1 has a small hole 6.
参见图 2， 在将金属导电片 2放置于盒体 1后， 二极管 4与金属导电片相连， 盒 体底部的凸柱 3从金属导电片 2上的安装孔 5伸出。 Referring to Fig. 2, after the metal conductive sheet 2 is placed on the casing 1, the diode 4 is connected to the metal conductive sheet, and the stud 3 at the bottom of the casing protrudes from the mounting hole 5 of the metal conductive sheet 2.
从图 3可以看出， 金属导电片 2放置于盒体底部后， 相邻两个金属导电片 2连 接处 7正好位于盒体底部的小孔 6处。这时只要使用工具在小孔 6处将连接处 7 切断， 便可将金属导电片 2两两分开。
As can be seen from Fig. 3, after the metal conductive sheet 2 is placed at the bottom of the casing, the adjacent two metal conductive sheets 2 joints 7 are located at the small holes 6 at the bottom of the casing. At this time, the metal conductive sheets 2 can be separated by two by using the tool to cut the joint 7 at the small hole 6.
Claims
权利要求书 、 一种光伏电池接线盒， 包括塑料盒体， 盒体内装有若干金属导电片， 相邻 的金属导电片之间以二极管相连，其特征在于： 所述的金属导电片为整块 的金属片在连接处切断而得；塑料盒体底面对应于每两片相邻金属导电片 的连接处带有小孔。 The invention relates to a photovoltaic cell junction box, comprising a plastic box body, wherein a plurality of metal conductive sheets are arranged in the box body, and adjacent metal conductive sheets are connected by diodes, wherein: the metal conductive sheets are monolithic The metal piece is cut at the joint; the bottom surface of the plastic case corresponds to a small hole at the joint of each two adjacent metal conductive sheets.
、 如权利要求 1所述的一种光伏电池接线盒，其特征在于：金属导电片上带 有安装孔， 盒体底部相应位置设有凸柱， 从安装孔中伸出， 其端部热熔后 固定金属导电片。 A photovoltaic cell junction box according to claim 1, wherein the metal conductive sheet has a mounting hole, and a corresponding column is provided at the bottom of the box body, and protrudes from the mounting hole, and the end portion is hot melted. Fixed metal conductive sheet.
、 光伏电池接线盒的生产方法，包括如下步骤： 按照设计的形状制作整体的 金属导电片， 该金属导电片在轮廓上分为若干个区域，但在物理上是连接 为一个整体的； 将二极管焊接到金属导电片上； 将焊好二极管的金属导电 片装入接线盒的盒体，该盒体在对应于金属导电片的连接部分处开有通孔; 工具伸入通孔中将金属导电片切断，使其从物理上成为互相独立的若干片。
The method for producing a photovoltaic cell junction box includes the following steps: forming a whole metal conductive sheet according to a designed shape, the metal conductive sheet is divided into several regions in a contour, but is physically connected as a whole; Soldering on the metal conductive sheet; loading the diode-bonded metal conductive sheet into the box of the junction box, the box having a through hole at a connecting portion corresponding to the metal conductive sheet; the tool extending into the through hole to the metal conductive sheet Cut off, making it physically separate from each other.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101570653A CN102244122A (en) | 2011-06-13 | 2011-06-13 | Junction box of photovoltaic cell |
| CN201110157065.3 | 2011-06-13 | ||
| CN2011101570422A CN102280520B (en) | 2011-06-13 | 2011-06-13 | Production method of photovoltaic cell junction box |
| CN201110157042.2 | 2011-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012171421A1 true WO2012171421A1 (en) | 2012-12-20 |
Family
ID=47356538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/075072 WO2012171421A1 (en) | 2011-06-13 | 2012-05-04 | Junction box of photovoltaic cell and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2012171421A1 (en) |
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| JPH11135169A (en) * | 1997-10-27 | 1999-05-21 | Sumitomo Wiring Syst Ltd | Fitting method of terminal and terminal continuum to be used therein |
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| CN102280520A (en) * | 2011-06-13 | 2011-12-14 | 人和光伏科技有限公司 | Production method of photovoltaic cell junction box |
| CN202111125U (en) * | 2011-06-13 | 2012-01-11 | 人和光伏科技有限公司 | Conjunction box of photovoltaic cell |
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2012
- 2012-05-04 WO PCT/CN2012/075072 patent/WO2012171421A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11135169A (en) * | 1997-10-27 | 1999-05-21 | Sumitomo Wiring Syst Ltd | Fitting method of terminal and terminal continuum to be used therein |
| JP2004274088A (en) * | 1997-10-27 | 2004-09-30 | Sumitomo Wiring Syst Ltd | Junction box for solar cell modules |
| JP2000068547A (en) * | 1998-08-20 | 2000-03-03 | Sumitomo Wiring Syst Ltd | Solar battery module terminal box and wiring system using the same |
| JP2004289181A (en) * | 2004-06-29 | 2004-10-14 | Sumitomo Wiring Syst Ltd | Junction box for solar cell modules |
| US7291036B1 (en) * | 2006-11-08 | 2007-11-06 | Tyco Electronics Corporation | Photovoltaic connection system |
| CN201435569Y (en) * | 2009-07-04 | 2010-03-31 | 边刚 | Solar energy photovoltaic terminal box |
| CN102244122A (en) * | 2011-06-13 | 2011-11-16 | 人和光伏科技有限公司 | Junction box of photovoltaic cell |
| CN102280520A (en) * | 2011-06-13 | 2011-12-14 | 人和光伏科技有限公司 | Production method of photovoltaic cell junction box |
| CN202111125U (en) * | 2011-06-13 | 2012-01-11 | 人和光伏科技有限公司 | Conjunction box of photovoltaic cell |
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