CN223347532U - Connection cables for clean energy - Google Patents

Connection cables for clean energy

Info

Publication number
CN223347532U
CN223347532U CN202422515489.8U CN202422515489U CN223347532U CN 223347532 U CN223347532 U CN 223347532U CN 202422515489 U CN202422515489 U CN 202422515489U CN 223347532 U CN223347532 U CN 223347532U
Authority
CN
China
Prior art keywords
layer
aluminum alloy
twisted
conductor
twisted structure
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.)
Active
Application number
CN202422515489.8U
Other languages
Chinese (zh)
Inventor
苏永奇
王琴
李嘉诚
曹晨涛
潘文雯
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.)
Wuxi Huamei Cable Co ltd
Original Assignee
Wuxi Huamei Cable 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 Wuxi Huamei Cable Co ltd filed Critical Wuxi Huamei Cable Co ltd
Priority to CN202422515489.8U priority Critical patent/CN223347532U/en
Application granted granted Critical
Publication of CN223347532U publication Critical patent/CN223347532U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Landscapes

  • Insulated Conductors (AREA)

Abstract

本实用新型涉及光伏电缆技术领域，具体而言涉及清洁能源用连接电缆，包括导体、绝缘层以及护套；所述导体包括多层绞合结构，每一层绞合结构均包括铝合金丝束，其中，外层的铝合金丝束复绞在内层的铝合金丝束的外侧；在内层绞合结构和外层绞合结构之间设有复合纤维丝束。本实用新型提出的铝合金导体的连接电缆，通过多层复绞的铝合金丝束提高导体的弯曲能力，同时通过在导体内添加芳纶丝束提高导体的抗拉性能，能降低细直径铝合金单丝在受拉或弯曲状态下发生蠕变或断丝的概率，通过这种铝合金导体可代替原铜导体连接电缆，以降低生产成本。

The present invention relates to the technical field of photovoltaic cables, and more specifically, to a connecting cable for clean energy, comprising a conductor, an insulating layer, and a sheath. The conductor comprises a multi-layer twisted structure, each layer of which comprises aluminum alloy filament bundles, wherein the outer layer of aluminum alloy filament bundles is re-twisted on the outside of the inner layer of aluminum alloy filament bundles; and a composite fiber bundle is provided between the inner and outer layer twisted structures. The connecting cable with an aluminum alloy conductor proposed in the present invention improves the bending ability of the conductor by using the multi-layer twisted aluminum alloy filament bundles, and improves the tensile strength of the conductor by adding aramid filament bundles to the conductor. This reduces the probability of creep or wire breakage of thin-diameter aluminum alloy monofilaments under tension or bending. This aluminum alloy conductor can replace the original copper conductor connecting cable, thereby reducing production costs.

Description

Connecting cable for clean energy
Technical Field
The utility model relates to the technical field of wires and cables, in particular to a connecting cable for clean energy.
Background
The connecting cable for clean energy is used for connecting various equipment or components in the fields of renewable energy power generation systems such as wind energy, solar energy and water energy, electric automobile charging facilities, energy storage systems and the like and realizing electric energy transmission. The connection cable for photovoltaic energy storage is mainly used for electric power connection among battery modules, battery clusters and a junction box or between the battery clusters and an energy storage converter on a direct current side in a battery energy storage system.
At present, a photovoltaic connecting cable mainly comprises a conductor, an insulating layer and a sheath layer, wherein the conductor is usually made of pure copper or a tinned copper core, the insulating layer and the sheath layer are respectively made of polyvinyl chloride and polyolefin materials, 8000 series of aluminum alloys cannot meet the bending performance of the cable due to high hardness, and the cable is not beneficial to connection between a plurality of battery plates and a junction box, so that the conductor is formed by twisting thin copper wires with the diameter of 0.5mm, and the cost of the photovoltaic connecting cable is high.
Disclosure of Invention
Aiming at the technical problems of the photovoltaic connecting cable in the prior art, the first aspect of the utility model provides a connecting cable for clean energy, which comprises a conductor, an insulating layer and a sheath;
The conductor comprises a plurality of layers of stranded structures, each layer of stranded structure comprises an aluminum alloy wire bundle, wherein the aluminum alloy wire bundles of the outer layer are stranded outside the aluminum alloy wire bundles of the inner layer;
A composite fiber tow is arranged between the inner layer stranded structure and the outer layer stranded structure, and the composite fiber tow comprises stranded aramid fiber tows and water-blocking tows;
An elastomer is filled between the inner layer stranded structure and the outer layer stranded structure;
the conductor and the insulating layer are provided with copper wire braiding layers.
Preferably, the conductor comprises a three-layer stranded structure, the first-layer stranded structure, the second-layer stranded structure and the third-layer stranded structure are distributed from inside to outside, the first-layer stranded structure comprises a bundle of aluminum alloy wire bundles, the second-layer stranded structure comprises six bundles of aluminum alloy wire bundles stranded outside the first-layer stranded structure, and the third-layer stranded structure comprises twelve bundles of aluminum alloy wire bundles stranded outside the second-layer stranded structure.
Preferably, the aluminum alloy wire bundles have a three-layer stranding structure of 1+6+12.
Preferably, the ratio of the twisted strand of the third layer is 8-10, and the ratio of the twisted strand of the second layer is 12-14.
Preferably, the twisting pitch diameter ratio of the aluminum alloy wire bundles in the first layer of twisting structure is 20-30, the twisting pitch diameter ratio of the aluminum alloy wire bundles in the second layer of twisting structure is 18-22, and the twisting pitch diameter ratio of the aluminum alloy wire bundles in the third layer of twisting structure is 12-16.
Preferably, the diameter of the aluminum alloy monofilament in the aluminum alloy filament bundle is 0.15-0.30 mm.
Preferably, a plurality of first composite fiber tows are arranged between the second layer stranded structure and the third layer stranded structure, and a plurality of second composite fiber tows are arranged between the third layer stranded structure and the copper wire weaving layer.
Preferably, the first composite fiber tows and the second composite fiber tows comprise an aramid fiber tow positioned at the center and a plurality of water-blocking tows stranded on the outer wall of the aramid fiber tow.
Preferably, the elastomer comprises nylon filaments.
Preferably, the insulating layer comprises a crosslinked polyethylene insulating layer, and the sheath comprises a crosslinked low smoke zero halogen flame retardant polyolefin sheath.
Compared with the prior art, the utility model has the advantages that:
According to the connecting cable of the aluminum alloy conductor, the bending capacity of the conductor is improved through the aluminum alloy tows which are twisted in multiple layers, meanwhile, the tensile property of the conductor is improved through adding the aramid fiber tows into the conductor, the probability of creep deformation or wire breakage of the aluminum alloy monofilament with a small diameter in a tensile or bending state can be reduced, the conductor is bound by the copper wire braiding layers arranged between the conductor and the insulating layer, when the insulating layer of the connecting cable is stripped, the stranded conductor can be prevented from being scattered so as to be connected with the connector, and the aluminum alloy conductor can replace the original copper conductor connecting cable to reduce the production cost.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view showing the structure of a connection cable for clean energy according to the present utility model.
Detailed Description
For a better understanding of the technical content of the present utility model, specific examples are set forth below, along with the accompanying drawings.
Referring to fig. 1, a first aspect of the present utility model provides a connection cable for clean energy, which mainly includes a conductor 10, an insulating layer 30, and a sheath 40, wherein the conductor 10 includes a multi-layer twisted structure, each of which includes aluminum alloy strands, and wherein the aluminum alloy strands of an outer layer are twisted outside the aluminum alloy strands of an inner layer.
Alternatively, the aluminum alloy filament bundles adopt 8000 series aluminum alloy monofilaments with diameters of 0.15 mm-0.30 mm, 8000 series aluminum alloy has good conductive performance, conductivity is slightly lower than copper, loss of electric energy can be reduced, power transmission efficiency is improved, compared with copper conductors, aluminum alloy has lower price, obvious price advantage is achieved on the premise of meeting the same conductive performance, and in addition, bending performance of the cable can be improved by reducing the diameters of the monofilaments and arranging a conductor structure of the twisted conductor.
In an alternative embodiment, as shown in fig. 1, the conductor 10 includes a three-layer twisted structure, the first layer twisted structure 11, the second layer twisted structure 12, and the third layer twisted structure 13 are distributed from inside to outside, the first layer twisted structure 11 includes one bundle of aluminum alloy strands, the second layer twisted structure 12 includes six bundles of aluminum alloy strands twisted outside the first layer twisted structure 11, and the third layer twisted structure 13 includes twelve bundles of aluminum alloy strands twisted outside the second layer twisted structure 12.
Wherein each bundle of aluminum alloy wire bundles has a three-layer stranding structure of 1+6+12.
In an alternative embodiment, the third layer lay structure 13 has a lay ratio of 8 to 10 and the second layer lay structure 12 has a lay ratio of 12 to 14. The twisted conductor has better bending performance through the smaller multi-twisting pitch diameter ratio, and particularly, the stress on the conductor tows in a bending state is reduced.
Further, the twisting pitch ratio of the aluminum alloy wire bundles in the first layer of twisting structure 11 is 20-30, specifically, the twisting pitch ratio of the aluminum alloy wires in the middle layer is 30, and the twisting pitch ratio of the aluminum alloy wires in the outer layer is 20.
Further, the second layer of the twisted structure 12 has a twisted pitch ratio of 18 to 22 for the aluminum alloy strands, specifically, the middle layer has a twisted pitch ratio of 22 for the aluminum alloy strands and the outer layer has a twisted pitch ratio of 18 for the aluminum alloy strands.
Further, the strand pitch ratio of the aluminum alloy wire bundles in the third layer strand structure 13 is 12 to 16, specifically, the strand pitch ratio of the aluminum alloy wires in the middle layer is 16, and the strand pitch ratio of the aluminum alloy wires in the outer layer is 12.
In this way, the twisting pitch ratio of the aluminum alloy monofilaments is reduced from the inner layer to the outer layer, so that the conductor is easier to bend, the stress of the aluminum alloy monofilaments during bending can be reduced, and the probability of creep deformation and even fatigue fracture of the aluminum alloy monofilaments is reduced.
Further, a composite fiber tow is arranged between the inner layer stranded structure and the outer layer stranded structure.
Wherein the composite fiber tows comprise stranded aramid fiber tows and water-blocking tows.
The tensile property of the conductor can be improved by arranging the aramid fiber tows, particularly the diameter of the conductor monofilament is thinner, the tensile capability of the conductor can be born by the aramid fiber tows, the tensile stress born by the aluminum alloy monofilament is avoided, and the creep of the aluminum alloy monofilament is avoided.
The water blocking tows are filled among the monofilaments, so that water vapor among the metal wires can be absorbed, the cross section of the conductor is compact, and the water blocking effect is achieved.
Optionally, a plurality of first composite fiber tows 15 are arranged between the second layer stranded structure 12 and the third layer stranded structure 13, and a plurality of second composite fiber tows 16 are arranged between the third layer stranded structure 13 and the copper wire braid 20.
Specifically, the first composite fiber tows 15 and the second composite fiber tows 16 each include an aramid fiber tow located at the center and a plurality of water-blocking tows twisted on the outer wall of the aramid fiber tows.
Further, an elastomer 14 is further filled between the inner layer stranded structure and the outer layer stranded structure, and the bending performance of the conductor is further improved through the filled elastomer 14, and particularly, the stress of the metal wire in a bending state is reduced, so that the service life of the cable is prolonged.
Preferably, the elastomer 14 comprises nylon filaments.
Further, a copper wire braid 20 is provided between the conductor 10 and the insulating layer 30. The braided copper wire layer 20 can bind and shield the twisted conductor.
In addition, because the diameter of the monofilament is smaller, when insulation is stripped, the aluminum alloy monofilament of the inner layer can be limited through the copper wire braid 20, and the aluminum alloy monofilament is prevented from being bent outwards and scattered, so that the aluminum alloy monofilament is favorable for being spliced with a connector.
Alternatively, the copper wire braid 20 is formed by cross braiding copper wires of 0.5mm or more at an angle of 45 °.
In the above embodiment, the insulating layer 30 comprises a crosslinked polyethylene insulating layer having excellent heat resistance, no decomposition and carbonization at 200 ℃ or less, a long-term working temperature of 90 ℃ and a thermal life of 40 years, and satisfying the demand for reliability of the cable.
The sheath 40 comprises a cross-linked low-smoke halogen-free flame retardant polyolefin sheath, which has good weather resistance, ultraviolet resistance and chemical corrosion resistance, is suitable for being used in severe environments, and meets the use requirement ‌ of the photovoltaic connecting cable in sunlight and exposed environments.
In combination with the embodiment, the bending capacity of the conductor is improved through the multi-layer twisted aluminum alloy tows, meanwhile, the tensile property of the conductor is improved through adding the aramid fiber tows into the conductor, the probability of creep deformation or wire breakage of the thin aluminum alloy monofilaments in a tensile or bending state can be reduced, the copper wire braiding layers arranged between the conductor and the insulating layer bind the conductor, when the insulating layer of the connecting cable is stripped, the twisted conductor can be prevented from being scattered so as to be connected with the connector, and the aluminum alloy conductor can replace the original copper conductor connecting cable so as to reduce the production cost.
While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims (10)

1.一种清洁能源用连接电缆，其特征在于，包括导体（10）、绝缘层（30）以及护套（40）；1. A connection cable for clean energy, characterized by comprising a conductor (10), an insulating layer (30) and a sheath (40); 所述导体（10）包括多层绞合结构，每一层绞合结构均包括铝合金丝束，其中，外层的铝合金丝束复绞在内层的铝合金丝束的外侧；The conductor (10) comprises a multi-layer twisted structure, each layer of the twisted structure comprises an aluminum alloy wire bundle, wherein the aluminum alloy wire bundle of the outer layer is twisted on the outside of the aluminum alloy wire bundle of the inner layer; 在内层绞合结构和外层绞合结构之间设有复合纤维丝束，所述复合纤维丝束包括绞合的芳纶丝束和阻水丝束；A composite fiber tow is provided between the inner layer twisted structure and the outer layer twisted structure, wherein the composite fiber tow comprises a twisted aramid tow and a water-blocking tow; 在所述内层绞合结构和外层绞合结构之间还填充有弹性体（14）；An elastic body (14) is also filled between the inner layer twisted structure and the outer layer twisted structure; 所述导体（10）和绝缘层（30）设有铜丝编织层（20）。The conductor (10) and the insulating layer (30) are provided with a copper wire braided layer (20). 2.根据权利要求1所述的清洁能源用连接电缆，其特征在于，所述导体（10）包括三层绞合结构，第一层绞合结构（11）、第二层绞合结构（12）和第三层绞合结构（13）由内向外分布，所述第一层绞合结构（11）包括一束铝合金丝束，所述第二层绞合结构（12）包括复绞在所述第一层绞合结构（11）外的六束铝合金丝束，第三层绞合结构（13）包括复绞在所述第二层绞合结构（12）外的十二束铝合金丝束。2. The connection cable for clean energy according to claim 1, characterized in that the conductor (10) includes a three-layer twisted structure, the first layer twisted structure (11), the second layer twisted structure (12) and the third layer twisted structure (13) are distributed from the inside to the outside, the first layer twisted structure (11) includes a bundle of aluminum alloy wire bundles, the second layer twisted structure (12) includes six bundles of aluminum alloy wire bundles twisted outside the first layer twisted structure (11), and the third layer twisted structure (13) includes twelve bundles of aluminum alloy wire bundles twisted outside the second layer twisted structure (12). 3.根据权利要求2所述的清洁能源用连接电缆，其特征在于，所述铝合金丝束为1+6+12的三层绞合结构。3. The connection cable for clean energy according to claim 2 is characterized in that the aluminum alloy wire bundle is a three-layer twisted structure of 1+6+12. 4.根据权利要求2所述的清洁能源用连接电缆，其特征在于，所述第三层绞合结构（13）的复绞绞合节径比为8~10，所述第二层绞合结构（12）的复绞绞合节径比为12~14。4. The connection cable for clean energy according to claim 2, characterized in that the re-twisted pitch ratio of the third layer twisted structure (13) is 8-10, and the re-twisted pitch ratio of the second layer twisted structure (12) is 12-14. 5.根据权利要求3所述的清洁能源用连接电缆，其特征在于，所述第一层绞合结构（11）中铝合金丝束的绞合节径比为20~30，所述第二层绞合结构（12）中铝合金丝束的绞合节径比为18~22，所述第三层绞合结构（13）中铝合金丝束的绞合节径比为12~16。5. The connection cable for clean energy according to claim 3, characterized in that the twisted pitch-to-diameter ratio of the aluminum alloy wire bundles in the first layer twisted structure (11) is 20-30, the twisted pitch-to-diameter ratio of the aluminum alloy wire bundles in the second layer twisted structure (12) is 18-22, and the twisted pitch-to-diameter ratio of the aluminum alloy wire bundles in the third layer twisted structure (13) is 12-16. 6.根据权利要求1-5中的任意一项所述的清洁能源用连接电缆，其特征在于，所述铝合金丝束中铝合金单丝的直径是0.15~0.30mm。6 . The clean energy connection cable according to claim 1 , wherein the diameter of the aluminum alloy single wire in the aluminum alloy wire bundle is 0.15 to 0.30 mm. 7.根据权利要求2所述的清洁能源用连接电缆，其特征在于，所述第二层绞合结构（12）和第三层绞合结构（13）之间设有多束第一复合纤维丝束（15），所述第三层绞合结构（13）和铜丝编织层（20）之间设有多束第二复合纤维丝束（16）。7. The connection cable for clean energy according to claim 2, characterized in that a plurality of first composite fiber bundles (15) are provided between the second layer twisted structure (12) and the third layer twisted structure (13), and a plurality of second composite fiber bundles (16) are provided between the third layer twisted structure (13) and the copper wire braided layer (20). 8.根据权利要求7所述的清洁能源用连接电缆，其特征在于，所述第一复合纤维丝束（15）和第二复合纤维丝束（16）均包括位于中心的芳纶丝束和绞合在芳纶丝束外壁的多根阻水丝束。8. The connection cable for clean energy according to claim 7, characterized in that the first composite fiber bundle (15) and the second composite fiber bundle (16) both include an aramid bundle located in the center and a plurality of water-blocking bundles twisted on the outer wall of the aramid bundle. 9.根据权利要求1所述的清洁能源用连接电缆，其特征在于，所述弹性体（14）包括尼龙丝。9. The connection cable for clean energy according to claim 1, characterized in that the elastic body (14) comprises nylon filaments. 10.根据权利要求1所述的清洁能源用连接电缆，其特征在于，所述绝缘层（30）包括交联聚乙烯绝缘层，所述护套（40）包括交联低烟无卤阻燃聚烯烃护套。10. The connection cable for clean energy according to claim 1, characterized in that the insulating layer (30) comprises a cross-linked polyethylene insulating layer, and the sheath (40) comprises a cross-linked low-smoke halogen-free flame-retardant polyolefin sheath.
CN202422515489.8U 2024-10-17 2024-10-17 Connection cables for clean energy Active CN223347532U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202422515489.8U CN223347532U (en) 2024-10-17 2024-10-17 Connection cables for clean energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202422515489.8U CN223347532U (en) 2024-10-17 2024-10-17 Connection cables for clean energy

Publications (1)

Publication Number Publication Date
CN223347532U true CN223347532U (en) 2025-09-16

Family

ID=97014174

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202422515489.8U Active CN223347532U (en) 2024-10-17 2024-10-17 Connection cables for clean energy

Country Status (1)

Country Link
CN (1) CN223347532U (en)

Similar Documents

Publication Publication Date Title
CN209822304U (en) Lightweight high-voltage flexible cables for new energy vehicles
CN223347532U (en) Connection cables for clean energy
CN215577882U (en) Optical fiber composite shore power cable
CN110085351A (en) New-energy automobile lightweight high-voltage flexible cable
CN207676693U (en) A kind of aluminium alloy cable with the ultralight characteristic of high intensity
CN114360774B (en) A kind of highly elastic soft cable
CN216119586U (en) High-tensile anti-torsion wind power cable
CN118039222A (en) Aluminum alloy conductor energy storage battery connecting cable
CN115101230A (en) Aluminum alloy monofilament and light aluminum alloy torsion cable for wind power large base
CN223347526U (en) Low smoke halogen-free flame retardant photovoltaic cable
CN222281636U (en) Tensile torsion-resistant cable for water photovoltaic system
CN223347538U (en) Salt-fog-resistant environment aluminum alloy power cable
CN218826293U (en) High-torsion-resistant flexible conductor and cable
CN213277489U (en) High-flexibility environment-friendly battery connecting cable for energy storage system
CN219591141U (en) High-flexibility self-cooling high-voltage charging pile cable
CN223784910U (en) A type of tensile and crush-resistant photovoltaic array cable
CN212907177U (en) an overhead cable
CN222734689U (en) High-performance light-weight high-voltage cable for new energy automobile
CN217506928U (en) Reinforced composite flexible cable
CN223260371U (en) Copper conductor composite structure for high tensile strength optoelectronic composite cable for ships
CN217086195U (en) Lightweight stretch-proof direct-current oil-impregnated paper high-voltage cable
CN221884713U (en) Bending-resistant four-core lead sheath low-voltage armored cable
CN222690423U (en) An optoelectronic composite optical cable for 5G+ optical fiber fixed network
CN219658416U (en) Tensile bending-resistant medical equipment cable
CN222530054U (en) Flex-resistant armored multi-core photovoltaic cable

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant