CN114188430A - 一种用于光伏组件的分体式双焊带 - Google Patents

一种用于光伏组件的分体式双焊带 Download PDF

Info

Publication number
CN114188430A
CN114188430A CN202111478689.5A CN202111478689A CN114188430A CN 114188430 A CN114188430 A CN 114188430A CN 202111478689 A CN202111478689 A CN 202111478689A CN 114188430 A CN114188430 A CN 114188430A
Authority
CN
China
Prior art keywords
copper
solder strip
photovoltaic module
welding strip
split type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111478689.5A
Other languages
English (en)
Other versions
CN114188430B (zh
Inventor
钱兵
姜亚帅
陈如意
周扬
黄国平
李菁楠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CECEP Solar Energy Technology Zhenjiang Co Ltd
Original Assignee
CECEP Solar Energy Technology Zhenjiang Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CECEP Solar Energy Technology Zhenjiang Co Ltd filed Critical CECEP Solar Energy Technology Zhenjiang Co Ltd
Priority to CN202111478689.5A priority Critical patent/CN114188430B/zh
Publication of CN114188430A publication Critical patent/CN114188430A/zh
Application granted granted Critical
Publication of CN114188430B publication Critical patent/CN114188430B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H01L31/0508—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 the interconnection means having a particular shape
    • 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
    • H01L31/0512—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 made of a particular material or composition of materials
    • 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
    • H01L31/0516—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 specially adapted for interconnection of back-contact solar cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • 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
    • Y02E10/52—PV systems with concentrators

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

本发明公开了一种用于光伏组件的分体式双焊带，包括设于电池片正面的半圆内凹坑形焊带与设于电池片背面的扁平状焊带，半圆内凹坑形焊带的基体为横截面为半圆形的长条，基体的顶部设有横截面为梯形的凹槽，基体的材料为铜，基体的外表面镀有锡铅合金，扁平状焊带的基体为铝芯，铝芯的外表面包覆一层铜。在电池片正面采用半圆形的基体内设凹槽结构，通过光线的直接反射和多次反射，增加光线利用率，提高组件功率输出；电池片背面采用铜包铝技术，基材为铝，表面包覆一层铜的扁平状焊带，使得铝与铜形成并联电路，降低焊带电阻，降低焊带电阻损耗，增加组件功率输出。

Description

一种用于光伏组件的分体式双焊带
技术领域
本发明涉及一种用于光伏组件的分体式双焊带。
背景技术
随着市场上对高功率组件需求的日益增长，当前组件技术方面的研究基本集中在MBB(多主栅)、半片、双面技术，并且这些技术的研究主要围绕在光学和电学方面。
在光学和电学方面的研究，其中电池片之间的互连是个研究热点。在5BB(五主栅)组件中，电池片之间使用的是以铜为基材的扁平焊带；在MBB组件中，电池片之间使用的是以铜为基材的圆形焊带。
目前主流的两种电池片之间互连都是以铜为基材的扁平焊带和圆形焊带，但是扁平焊带存在严重的光线遮挡问题，使得组件对光的利用率较低，影响组件输出功率；而圆形焊带存在与电池片接触面积较小的问题，使得圆形焊带具有较大的电阻，影响组件输出功率。
同时，双面发电组件的背面发电与正面发电具有较大差异，对于背面焊带的选择，可以进行差异化的选择，不用完全跟正面一致，避免背面焊带性能的过剩。
发明内容
本发明的目的是为了解决以上现有技术的不足，提供一种用于光伏组件的分体式双焊带。
一种用于光伏组件的分体式双焊带，包括设于电池片正面的半圆内凹坑形焊带与设于电池片背面的扁平状焊带，半圆内凹坑形焊带的基体为横截面为半圆形的长条，基体的顶部设有横截面为梯形的凹槽，基体的材料为铜，基体的外表面镀有锡铅合金，扁平状焊带的基体为铝芯，铝芯的外表面包覆一层铜。
作为进一步改进，所述的在铝芯的外表面包覆一层铜的方法为电镀法或焊接法。
作为进一步改进，所述的电镀法为以铝芯为阴极，将铝芯放入带有铜离子的电解液中，通过电解作用，使电解液中铜离子在铝芯表面沉积出来，形成一层铜镀层。
作为进一步改进，所述的焊接法为将铜带包覆在铝芯上，对铜带的内表面与铝芯的外表面采用氩弧焊的方式进行焊接。
作为进一步改进，扁平状焊带的截面积为半圆内凹坑形焊带截面积的1.5～2倍。
作为进一步改进，半圆内凹坑形焊带的基体截面的半圆直径为0.2～0.4mm，凹槽的深度为半圆直径的1/3～1/2。
作为进一步改进，扁平状焊带的总厚度为0.1～0.2mm，铝的厚度是铜的2倍。
有益效果：
本发明设计巧妙，在电池片正面采用半圆形的基体内设凹槽结构，通过光线的直接反射和多次反射，增加光线利用率，提高组件功率输出；电池片背面采用铜包铝技术，基材为铝，表面包覆一层铜的扁平状焊带，使得铝与铜形成并联电路，降低焊带电阻，降低焊带电阻损耗，增加组件功率输出。
附图说明
图1是半圆内凹坑形焊带的结构示意图；
图2是光线在半圆内凹坑形焊带附近反射的示意图；
具体实施方式
为了加深对本发明的理解，下面将结合实施例和附图对本发明作进一步详述，该实施例仅用于解释本发明，并不构成对本发明保护范围的限定。
如图1～2所示，一种用于光伏组件的分体式双焊带，包括设于电池片正面的半圆内凹坑形焊带与设于电池片背面的扁平状焊带，半圆内凹坑形焊带的基体为横截面为半圆形的长条，基体的顶部设有横截面为梯形的凹槽，基体的材料为铜，基体的外表面镀有锡铅合金，扁平状焊带的基体为铝芯，铝芯的外表面包覆一层铜。
其中，所述的在铝芯的外表面包覆一层铜的方法为电镀法或焊接法。
其中，所述的电镀法为以铝芯为阴极，将铝芯放入带有铜离子的电解液中，通过电解作用，使电解液中铜离子在铝芯表面沉积出来，形成一层铜镀层。
其中，所述的焊接法为将铜带包覆在铝芯上，对铜带的内表面与铝芯的外表面采用氩弧焊的方式进行焊接。
其中，扁平状焊带的截面积为半圆内凹坑形焊带截面积的1.5～2倍。
其中，半圆内凹坑形焊带的基体截面的半圆直径为0.2～0.4mm，凹槽的深度为半圆直径的1/3～1/2。
其中，扁平状焊带的总厚度为0.1～0.2mm，铝的厚度是铜的2倍。
正面的焊带采用半圆形的基体内设凹槽结构，半圆的弧形主要是通过光线的直接反射，增加电池片光的吸收，凹槽形状主要是通过光线在凹槽内形成多次反射，使得光线尽可能多的留在里面，增加光线的利用率。焊带背面采用铜包铝技术，基材为铝，表面包覆一层铜的扁平状焊带，使得铝与铜形成并联电路，降低焊带电阻，降低焊带电阻损耗，增加组件功率输出。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，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。

Claims (7)

1.一种用于光伏组件的分体式双焊带，其特征在于，包括设于电池片正面的半圆内凹坑形焊带与设于电池片背面的扁平状焊带，半圆内凹坑形焊带的基体为横截面为半圆形的长条，基体的顶部设有横截面为梯形的凹槽，基体的材料为铜，基体的外表面镀有锡铅合金，扁平状焊带的基体为铝芯，铝芯的外表面包覆一层铜。
2.根据权利要求1所述的一种用于光伏组件的分体式双焊带，其特征在于，所述的在铝芯的外表面包覆一层铜的方法为电镀法或焊接法。
3.根据权利要求2所述的一种用于光伏组件的分体式双焊带，其特征在于，所述的电镀法为以铝芯为阴极，将铝芯放入带有铜离子的电解液中，通过电解作用，使电解液中铜离子在铝芯表面沉积出来，形成一层铜镀层。
4.根据权利要求1所述的一种用于光伏组件的分体式双焊带，其特征在于，所述的焊接法为将铜带包覆在铝芯上，对铜带的内表面与铝芯的外表面采用氩弧焊的方式进行焊接。
5.根据权利要求1所述的一种用于光伏组件的分体式双焊带，其特征在于，扁平状焊带的截面积为半圆内凹坑形焊带截面积的1.5～2倍。
6.根据权利要求1所述的一种用于光伏组件的分体式双焊带，其特征在于，半圆内凹坑形焊带的基体截面的半圆直径为0.2～0.4mm，凹槽的深度为半圆直径的1/3～1/2。
7.根据权利要求1所述的一种用于光伏组件的分体式双焊带，其特征在于，扁平状焊带的总厚度为0.1～0.2mm，铝的厚度是铜的2倍。
CN202111478689.5A 2021-12-06 2021-12-06 一种用于光伏组件的分体式双焊带 Active CN114188430B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111478689.5A CN114188430B (zh) 2021-12-06 2021-12-06 一种用于光伏组件的分体式双焊带

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111478689.5A CN114188430B (zh) 2021-12-06 2021-12-06 一种用于光伏组件的分体式双焊带

Publications (2)

Publication Number Publication Date
CN114188430A true CN114188430A (zh) 2022-03-15
CN114188430B CN114188430B (zh) 2024-01-30

Family

ID=80542444

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111478689.5A Active CN114188430B (zh) 2021-12-06 2021-12-06 一种用于光伏组件的分体式双焊带

Country Status (1)

Country Link
CN (1) CN114188430B (zh)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103700718A (zh) * 2014-01-10 2014-04-02 常州天合光能有限公司 微聚光光伏焊带及其制备工艺
CN204289484U (zh) * 2014-12-23 2015-04-22 上海华友金裕微电子有限公司 一种微聚光增效光伏焊带
CN104952956A (zh) * 2015-05-08 2015-09-30 邝嘉豪 设有曲形凹槽的光伏焊带
CN106449836A (zh) * 2016-12-21 2017-02-22 常州天合光能有限公司 分段式微聚光焊带及其制备工艺
CN106505123A (zh) * 2016-12-31 2017-03-15 保定易通光伏科技股份有限公司 一种光伏组件用高效分段式斜纹焊带
CN109728118A (zh) * 2019-02-28 2019-05-07 同享（苏州）电子材料科技股份有限公司 一种低电流焊带及其制备方法
CN209896086U (zh) * 2019-04-19 2020-01-03 泰州隆基乐叶光伏科技有限公司 一种用于光伏组件的反光焊带及光伏组件
CN110890442A (zh) * 2019-11-20 2020-03-17 苏州宇邦新型材料股份有限公司 一种光伏焊带
CN111628026A (zh) * 2020-05-25 2020-09-04 江苏太阳科技股份有限公司 一种梯形分段式镂空低屈服焊带及其光伏组件制备方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103700718A (zh) * 2014-01-10 2014-04-02 常州天合光能有限公司 微聚光光伏焊带及其制备工艺
CN204289484U (zh) * 2014-12-23 2015-04-22 上海华友金裕微电子有限公司 一种微聚光增效光伏焊带
CN104952956A (zh) * 2015-05-08 2015-09-30 邝嘉豪 设有曲形凹槽的光伏焊带
CN106449836A (zh) * 2016-12-21 2017-02-22 常州天合光能有限公司 分段式微聚光焊带及其制备工艺
CN106505123A (zh) * 2016-12-31 2017-03-15 保定易通光伏科技股份有限公司 一种光伏组件用高效分段式斜纹焊带
CN109728118A (zh) * 2019-02-28 2019-05-07 同享（苏州）电子材料科技股份有限公司 一种低电流焊带及其制备方法
CN209896086U (zh) * 2019-04-19 2020-01-03 泰州隆基乐叶光伏科技有限公司 一种用于光伏组件的反光焊带及光伏组件
CN110890442A (zh) * 2019-11-20 2020-03-17 苏州宇邦新型材料股份有限公司 一种光伏焊带
CN111628026A (zh) * 2020-05-25 2020-09-04 江苏太阳科技股份有限公司 一种梯形分段式镂空低屈服焊带及其光伏组件制备方法

Also Published As

Publication number Publication date
CN114188430B (zh) 2024-01-30

Similar Documents

Publication Publication Date Title
CN103794656A (zh) 提高光伏电池组件功率的焊带及其制备方法
CN103700718A (zh) 微聚光光伏焊带及其制备工艺
CN204361114U (zh) 一种能提高电池片输出功率的热镀焊带
CN214123891U (zh) 一种多主栅双面发电太阳能电池及其模组
CN103456820B (zh) 微聚光光伏焊带
CN203826404U (zh) 一种太阳能光伏组件及其焊带
CN103606582A (zh) 微聚光光伏焊带及其焊接方法
CN114188430A (zh) 一种用于光伏组件的分体式双焊带
CN113644156A (zh) 一种双面反光光伏焊带及光伏组件
CN108365044A (zh) 一种斜纹式反射型反光焊带
CN205542834U (zh) 一种结构化光伏焊带
CN203398142U (zh) 一种微聚光光伏焊带
CN204577444U (zh) 反光焊带
CN211957663U (zh) 一种光伏焊带
CN207818586U (zh) 光伏组件用高效焊带
CN203589055U (zh) 微聚光光伏焊带
CN218351483U (zh) 一种光伏组件用新型焊带
CN204577445U (zh) 反光焊带
CN217405449U (zh) 光伏组件
CN105185857A (zh) 光伏太阳能电池组件焊带
CN220895519U (zh) 一种应用于光伏组件的分段聚光焊带
CN221466610U (zh) 一种锂离子正负极用复合集流体
CN205869698U (zh) 适用于镀层钢板电阻焊的电极
CN220021144U (zh) 焊带件、复合膜及电池组件
CN213816165U (zh) 一种分段式圆形焊带

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant