WO2023035505A1 - 一种环保型防白蚁光伏线束 - Google Patents

一种环保型防白蚁光伏线束 Download PDF

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WO2023035505A1
WO2023035505A1 PCT/CN2021/142964 CN2021142964W WO2023035505A1 WO 2023035505 A1 WO2023035505 A1 WO 2023035505A1 CN 2021142964 W CN2021142964 W CN 2021142964W WO 2023035505 A1 WO2023035505 A1 WO 2023035505A1
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Prior art keywords
binding
termite
cable
free end
sections
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PCT/CN2021/142964
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English (en)
French (fr)
Inventor
王新国
宋文娜
杨建伟
孙大壮
张伟
马振清
许炼
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江苏亨通电力电缆有限公司
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Priority to AU2021463477A priority Critical patent/AU2021463477A1/en
Publication of WO2023035505A1 publication Critical patent/WO2023035505A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
    • 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

  • This application belongs to the technical field of photovoltaic cables, for example, it relates to an environment-friendly anti-termite photovoltaic wiring harness.
  • Photovoltaic power generation has developed rapidly due to its advantages of safety and reliability, no geographical restrictions on resource distribution, and short construction period.
  • the demand for photovoltaic cables has greatly increased, and photovoltaic special cables are set to be connected in series between modules, and connected to DC distribution boxes and combiner boxes.
  • Photovoltaic cables are used in a large amount, widely distributed, and require high stability.
  • the photovoltaic wiring harness in the related art has the advantages of being suitable for use in harsh environments such as exposure to the sun, rain, wind, and drag, and at the same time makes the wiring on the project site regular, simple and easy to repair.
  • such cables are easily damaged by termites, causing problems such as short circuits and open circuits, which affect the operation of the photovoltaic system and reduce the reliability of the photovoltaic system.
  • the technical problem to be solved in this application is how to realize termite protection for photovoltaic cable harnesses.
  • the present application provides an environmentally friendly termite-proof photovoltaic wiring harness, which includes a plurality of cable assemblies, each of which includes two cables,
  • Each of the cables has a binding section and a non-binding section located at different positions along its length direction, all the binding sections of the plurality of cable assemblies extend along the same main line, and the free ends of all the binding sections are located on the main line the same end, the non-binding section extends along the branch line and the free end of the non-binding section is located at the free end of the branch line,
  • each said binding section is bound together with other said binding sections by binding tape;
  • the free end of the binding section and the free end of the non-binding section of one of them are respectively provided with a positive connector and a negative connector, and the free end of the binding section and the free end of the non-binding section of the other A negative connector and a positive connector are respectively connected;
  • Each cable includes a tinned flexible conductor, an insulating sheath, a termite-proof sheath and an outer sheath which are sequentially sheathed from the inside to the outside.
  • Fig. 1 is a structural schematic diagram of an environment-friendly anti-termite photovoltaic wiring harness disclosed in the present application
  • Fig. 2 is a schematic cross-sectional view of a single cable in the environment-friendly anti-termite photovoltaic wiring harness disclosed in the present application.
  • Cable assembly 11. Cable; 111. Tinned flexible conductor; 112. Insulation sleeve; 113. Anti-termite sheath; 114. Outer sheath; 12. Positive connector; 13. Negative connector; 2. Binding strap; 3. The first cable unit; 4. The second cable unit.
  • an environmentally friendly termite-proof photovoltaic wiring harness includes a plurality of cable assemblies 1, and each cable assembly 1 includes two cables 11,
  • Each cable 11 has binding sections and non-binding sections located at different positions in its length direction, all binding sections of multiple cable assemblies 1 extend along the same main line and the free ends of all binding sections are located at the same end of the main line, and the non-binding sections extend along the same main line.
  • the branch wire is extended and the free end of the unbound section is at the free end of the branch wire,
  • binding band 2 The non-free end of each binding section is bound together with other binding sections by binding band 2;
  • the free end of the binding section and the free end of the non-binding section of one of them are respectively provided with a positive connector 12 and a negative connector 13, and the free end of the binding section and the free end of the non-binding section of the other are provided with The free ends are respectively connected with a negative connector 13 and a positive connector 12;
  • Each cable 11 includes a tinned soft conductor 111 , an insulating sheath 112 , an anti-termite sheath 113 and an outer sheath 114 which are sheathed sequentially from inside to outside.
  • the tinned soft conductor 111 is a tinned soft copper conductor
  • the insulating sheath 112 is a 125-degree irradiation cross-linked halogen-free low-smoke polyolefin insulating sheath
  • the termite-proof sheath 113 is nylon 12 anti-corrosion
  • the termite sheath, the outer sheath 114 is a 125-degree radiation cross-linked halogen-free low-smoke polyolefin sheath.
  • the optional implementation mode in this embodiment includes eight cable assemblies 1, wherein two cable assemblies 1 are dispersed assemblies, and the remaining six cable assemblies 1 are close assemblies, and the two non-binding sections of each dispersed assembly are respectively along the two The two unbound sections of each closer component extend along the same branch line, and the three unbound sections of the closer component are located between the two unbound sections of one of the scattered components, and these unbound sections One side of the main line extends, and three unbound sections of the closer assembly are located between two unbound sections of the other discrete assembly and these unbound sections extend to the other side of the main line.
  • one of the dispersing components and three of them approaching the components form the first cable unit 3, another dispersing component and the other three components forming the second cable unit 4, the first cable unit 3 and The second cable unit 4 is arranged axially symmetrically.
  • the non-binding sections of different cables 11 have the same length.
  • each branch line is perpendicular to the main line.
  • the length of the main line between two adjacent branch lines is 500 cm.
  • the binding section of each cable 11 is bound together with the binding sections of other cables through at least two binding bands 2 located at different positions.
  • the environment-friendly anti-termite photovoltaic wiring harness is a prefabricated wiring harness that is prefabricated in a factory.
  • the binding strap 2 is a nylon rope.
  • the photovoltaic cable in this product adopts tinned soft copper conductor + 125-degree irradiation cross-linked low-smoke halogen-free polyolefin insulation sleeve + nylon 12 anti-termite sheath + 125-degree irradiation cross-linked halogen-free low-smoke polyolefin sheath.
  • the conductor of this product is a tinned annealed copper conductor. The softness of the conductor can meet the bending needs of the cable near the terminal and the connector.
  • the tinning of the conductor can prevent the corrosion of the photovoltaic cable under harsh operating conditions, so that the conductor can operate normally.
  • the insulating sleeve and outer sheath of this product are special materials for photovoltaic cable products. Compared with conventional cable materials, they have the characteristics of low smoke and halogen-free, acid and alkali resistance, low temperature resistance, and weather aging resistance.
  • the outer sheath can protect nylon 12
  • the anti-termite sheath is mechanically damaged and aged due to external force during installation and laying and cable operation.
  • the surface is smooth, and the Shore hardness reaches 67 or more, which can effectively prevent termites from biting. Guarantee the normal operation of the cable and reduce the loss of power outage and maintenance cost due to cable damage.
  • the environment-friendly anti-termite photovoltaic wiring harness disclosed in this application has reliable anti-termite performance and can reach the second level of the anti-termite group method.
  • the structure design is reasonable, and the nylon 12 anti-termite sheath can be protected by the outer sheath, so that the cable It can be protected against termites throughout the life cycle, and there is no chemical substance precipitation, which is environmentally friendly and non-polluting, making the operation of the photovoltaic system more reliable, and greatly reducing cable damage, short circuits, and open circuits caused by termite bites and acetic acid corrosion. problems, reducing the maintenance cost of photovoltaic systems;
  • the environmentally friendly termite-proof photovoltaic wiring harness disclosed in this application is pre-assembled in the factory according to the requirements of the actual use site, and only needs to be transported to the site for installation and connection.
  • the installation is simple and fast, with low technical requirements and positive and negative connections.
  • the quality of the connection between the device and the cable is higher than that of the manual joint at the construction site.
  • the machine used for preforming in the factory is imported equipment.
  • the cutting and crimping process of the cable end is stable, and there are professional equipment to detect the quality of the joint, and timely find hidden quality problems such as virtual connection and deformation.
  • Complete preforming in the factory can greatly reduce construction costs. Labor costs and construction time, reducing project costs.

Landscapes

  • Catching Or Destruction (AREA)
  • Insulated Conductors (AREA)

Abstract

本申请公开了一种环保型防白蚁光伏线束，包括多个电缆组件，每个电缆组件包括两根电缆，每根电缆具有绑扎段和非绑扎段，多个电缆组件的所有绑扎段沿同一条主线延伸，非绑扎段沿分支线延伸，每条绑扎段的非自由端通过绑扎带与其他绑扎段绑扎在一起；同一电缆组件的两根电缆中，其中一者的绑扎段自由端和非绑扎段自由端分别设有正极连接器和负极连接器，另一者的绑扎段自由端和非绑扎段自由端分别连接有负极连接器和正极连接器；每根电缆包括自内而外依次套设的镀锡软导体、绝缘套、防白蚁护套以及外护套。

Description

一种环保型防白蚁光伏线束
本申请要求在2021年9月10日提交中国专利局、申请号为202122190093.7的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请属于光伏电缆技术领域，例如涉及一种环保型防白蚁光伏线束。
背景技术
公开于该背景技术部分的信息仅仅旨在加深对本申请的总体背景技术的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的技术。
近年来，过于依赖传统化石能源带来的环境污染、生态失衡等问题日益显现，发展可再生能源迫在眉睫。光伏发电以其安全可靠、不受资源分布地域限制、建设周期短等优势发展迅猛。光伏电缆需求大为增长，光伏专用电缆设置为组件之间串联、组件与直流配电箱、汇流箱连接。光伏电缆用量大，分布广，稳定性要求高。相关技术中的光伏线束，具有适合暴晒、雨淋、风吹、拉拽等恶劣环境使用的优点，同时使得工程现场布线规整、简洁易于检修。但在白蚁分布多的地区，此类电缆极易受白蚁啃咬破坏，产生短路、断路等问题，影响光伏系统的运行，降低了光伏系统的可靠性。
发明内容
本申请所要解决的技术问题在于如何实现光伏电缆线束的防白蚁。
本申请提供了一种环保型防白蚁光伏线束，包括多个电缆组件，每个所述电缆组件包括两根电缆，
每根所述电缆具有位于其长度方向不同位置的绑扎段和非绑扎段，多个所述电缆组件的所有所述绑扎段沿同一条主线延伸且所有所述绑扎段的自由端位 于所述主线的同一端，所述非绑扎段沿分支线延伸且所述非绑扎段的自由端位于所述分支线的自由端，
每条所述绑扎段的非自由端通过绑扎带与其他所述绑扎段绑扎在一起；
同一所述电缆组件的两根电缆中，其中一者的绑扎段自由端和非绑扎段自由端分别设有正极连接器和负极连接器，另一者的绑扎段自由端和非绑扎段自由端分别连接有负极连接器和正极连接器；
每根所述电缆包括自内而外依次套设的镀锡软导体、绝缘套、防白蚁护套以及外护套。
附图说明
图1为本申请公开的环保型防白蚁光伏线束的结构示意图；
图2为本申请公开的环保型防白蚁光伏线束中单根电缆的横截面示意图。
其中，1、电缆组件；11、电缆；111、镀锡软导体；112、绝缘套；113、防白蚁护套；114、外护套；12、正极连接器；13、负极连接器；2、绑扎带；3、第一电缆单元；4、第二电缆单元。
具体实施方式
下面结合附图和实施例，对本申请的具体实施方式作详细描述。
应该指出，以下详细说明都是示例性的，旨在对本申请提供作为进一步改进说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、部件和/或它们的组合。在本公开中，术语如“上”、“下”、“左”、“右”、“前”、“后”、“竖直”、“水 平”、“侧”、“底”等指示的方位或位置关系为基于附图所示的方位或位置关系，只是为了便于叙述本公开各部件或元件结构关系而确定的关系词，并非特指本公开中任一部件或元件，不能理解为对本公开的限制。本公开中，术语如“固接”、“相连”、“连接”等应做广义理解，表示可以是固定连接,也可以是一体地连接或可拆卸连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的相关科研或技术人员，可以根据具体情况确定上述术语在本公开中的具体含义，不能理解为对本公开的限制。
实施例一
参见图1和图2，如其中的图例所示，一种环保型防白蚁光伏线束，包括多个电缆组件1，每个电缆组件1包括两根电缆11，
每根电缆11具有位于其长度方向不同位置的绑扎段和非绑扎段，多个电缆组件1的所有绑扎段沿同一条主线延伸且所有绑扎段的自由端位于主线的同一端，非绑扎段沿分支线延伸且非绑扎段的自由端位于分支线的自由端，
每条绑扎段的非自由端通过绑扎带2与其他绑扎段绑扎在一起；
同一电缆组件1的两根电缆11中，其中一者的绑扎段自由端和非绑扎段自由端分别设有正极连接器12和负极连接器13，另一者的绑扎段自由端和非绑扎段自由端分别连接有负极连接器13和正极连接器12；
每根电缆11包括自内而外依次套设的镀锡软导体111、绝缘套112、防白蚁护套113以及外护套114。
本实施例中可选的实施方式，镀锡软导体111为镀锡软铜导体，绝缘套112为125度辐照交联无卤低烟聚烯烃绝缘套，防白蚁护套113为尼龙12防白蚁护套，外护套114为125度辐照交联无卤低烟聚烯烃护套。
本实施例中可选的实施方式，包括八个电缆组件1，其中两个电缆组件1为分散组件，其余六个电缆组件1为靠拢组件，每个分散组件的两条非绑扎段分别沿两条分支线延伸，每个靠拢组件的两条非绑扎段沿同一条分支线延伸，其中三个靠拢组件的非绑扎段位于其中一个分散组件的两条非绑扎段之间且这些 非绑扎段向主线的一侧延伸，另外三个靠拢组件的非绑扎段位于另一个分散组件的两条非绑扎段之间且这些非绑扎段向主线的另一侧延伸。
本实施例中可选的实施方式，其中一个分散组件和其中三个靠拢组件组成第一电缆单元3，另一个分散组件和另外三个靠拢组件组成第二电缆单元4，第一电缆单元3和所述第二电缆单元4轴对称设置。
本实施例中可选的实施方式，不同电缆11的非绑扎段长度相同。
本实施例中可选的实施方式，每一条分支线垂直于主线。
本实施例中可选的实施方式，相邻两条分支线之间的主线长度为500厘米。
本实施例中可选的实施方式，每根电缆11的绑扎段通过位于不同位置的至少两根绑扎带2与其他电缆的绑扎段绑扎在一起。
本实施例中可选的实施方式，环保型防白蚁光伏线束为在工厂预制成型的预制线束。
本实施例中可选的实施方式，绑扎带2为尼龙绳。
实际使用时，上述绑扎段的自由端连接至汇流箱，上述非绑扎段的自由端连接至光伏组件的背面。本产品中光伏电缆采用镀锡软铜导体+125度辐照交联无卤低烟聚烯烃绝缘套+尼龙12防白蚁护套+125度辐照交联无卤低烟聚烯烃护套。本产品导体为镀锡软铜导体，该导体柔软度能够满足电缆在近终端和连接器弯曲需要，导体镀锡能够防止光伏电缆恶劣的使用条件下的腐蚀，使导体能够正常运行。本产品的绝缘套和外护套均为光伏电缆产品专用材料，与常规电缆材料相比，具有低烟无卤、耐酸碱、耐低温、耐气候老化等特点，外护套能够保护尼龙12防白蚁护套在安装敷设和电缆运行情况下，由于外力带来的机械损伤和老化。尼龙12防白蚁护套料挤出后(即尼龙12防白蚁护套应用在电缆表面后)表面光滑，邵氏硬度达到67以上，能够有效防止白蚁啃咬。保证电缆正常运行，降低由于电缆损坏带来的停电损失和检修费用。
本申请具有如下特点：
1)本申请公开的环保型防白蚁光伏线束，具有可靠的防白蚁性能，能够达 到防白蚁等级群体法Ⅱ级，结构设计合理，尼龙12防白蚁护套能够得到外护套保护，使得电缆在整个生命周期内能够得到防白蚁保护，且无化学物质析出，对环境友好无污染，使光伏系统运行更可靠，大大降低因白蚁啃咬、乙酸腐蚀等原因带来的电缆破损、短路、断路等问题，降低了光伏系统的维护成本；
2)本申请公开的环保型防白蚁光伏线束，根据实际使用场所的要求，在工厂中预装成型，只需运到现场进行安装连接即可，安装简单，快捷，技术要求低,正负连接器与电缆连接处比施工现场人工接头质量高。工厂内预成型使用机器为进口设备，电缆端头的切割与压工艺接水平稳定，并有专业设备检测接头质量，及时发现虚接、变形等质量隐患,在工厂完成预成型，可以大大降低施工人工成本和施工时间，降低项目花费。

Claims (10)

  1. 一种环保型防白蚁光伏线束，包括多个电缆组件，每个所述电缆组件包括两根电缆，
    每根所述电缆具有位于其长度方向不同位置的绑扎段和非绑扎段，多个所述电缆组件的所有所述绑扎段沿同一条主线延伸且所有所述绑扎段的自由端位于所述主线的同一端，所述非绑扎段沿分支线延伸且所述非绑扎段的自由端位于所述分支线的自由端，
    每条所述绑扎段的非自由端通过绑扎带与其他所述绑扎段绑扎在一起；
    同一所述电缆组件的两根电缆中，其中一者的绑扎段自由端和非绑扎段自由端分别设有正极连接器和负极连接器，另一者的绑扎段自由端和非绑扎段自由端分别连接有负极连接器和正极连接器；
    每根所述电缆包括自内而外依次套设的镀锡软导体、绝缘套、防白蚁护套以及外护套。
  2. 根据权利要求1所述的环保型防白蚁光伏线束，其中，所述镀锡软导体为镀锡软铜导体，所述绝缘套为125度辐照交联无卤低烟聚烯烃绝缘套，所述防白蚁护套为尼龙12防白蚁护套，所述外护套为125度辐照交联无卤低烟聚烯烃护套。
  3. 根据权利要求1所述的环保型防白蚁光伏线束，其中，所述电缆组件的数量为八个，其中两个所述电缆组件为分散组件，其余六个所述电缆组件为靠拢组件，每个所述分散组件的两条非绑扎段分别沿两条所述分支线延伸，每个所述靠拢组件的两条非绑扎段沿同一条所述分支线延伸，其中三个所述靠拢组件的非绑扎段位于其中一个所述分散组件的两条非绑扎段之间且这些非绑扎段向所述主线的一侧延伸，另外三个所述靠拢组件的非绑扎段位于另一个所述分散组件的两条非绑扎段之间且这些非绑扎段向所述主线的另一侧延伸。
  4. 根据权利要求3所述的环保型防白蚁光伏线束，其中，其中一个所述分散组件和其中三个所述靠拢组件组成第一电缆单元，另一个所述分散组件和另外三个所述靠拢组件组成第二电缆单元，所述第一电缆单元和所述第二电缆单元 轴对称设置。
  5. 根据权利要求1所述的环保型防白蚁光伏线束，其中，不同所述电缆的非绑扎段长度相同。
  6. 根据权利要求1所述的环保型防白蚁光伏线束，其中，每一条所述分支线垂直于所述主线。
  7. 根据权利要求1所述的环保型防白蚁光伏线束，其中，相邻两条所述分支线之间的主线长度为500厘米。
  8. 根据权利要求1所述的环保型防白蚁光伏线束，其中，每根所述电缆的绑扎段通过位于不同位置的至少两根所述绑扎带与其他所述电缆的绑扎段绑扎在一起。
  9. 根据权利要求1所述的环保型防白蚁光伏线束，其中，所述环保型防白蚁光伏线束为在工厂预制成型的预制线束。
  10. 根据权利要求1所述的环保型防白蚁光伏线束，其中，所述绑扎带为尼龙绳。
PCT/CN2021/142964 2021-09-10 2021-12-30 一种环保型防白蚁光伏线束 WO2023035505A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN203967369U (zh) * 2014-06-30 2014-11-26 天津六〇九电缆有限公司 一种跟踪器光伏线束组件
CN206075892U (zh) * 2016-08-24 2017-04-05 天津六〇九电缆有限公司 一种组串式逆变器方阵地沟型线束
CN208507254U (zh) * 2017-12-11 2019-02-15 无锡鑫宏业特塑线缆有限公司 防鼠蚁光伏电缆
US20190372321A1 (en) * 2018-05-30 2019-12-05 Yazaki Corporation Vehicle Circuit Body and Method of Manufacturing Vehicle Circuit Body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203967369U (zh) * 2014-06-30 2014-11-26 天津六〇九电缆有限公司 一种跟踪器光伏线束组件
CN206075892U (zh) * 2016-08-24 2017-04-05 天津六〇九电缆有限公司 一种组串式逆变器方阵地沟型线束
CN208507254U (zh) * 2017-12-11 2019-02-15 无锡鑫宏业特塑线缆有限公司 防鼠蚁光伏电缆
US20190372321A1 (en) * 2018-05-30 2019-12-05 Yazaki Corporation Vehicle Circuit Body and Method of Manufacturing Vehicle Circuit Body

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