CN212208989U

CN212208989U - Photovoltaic connecting wire capable of resisting bending and breaking

Info

Publication number: CN212208989U
Application number: CN202021125054.8U
Authority: CN
Inventors: 蒋家枫; 吴瑜
Original assignee: Dongguan Nangudi Electronics Co ltd
Current assignee: Dongguan Nangudi Electronics Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-12-22
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a photovoltaic connecting wire capable of resisting bending and breaking, which comprises a connecting terminal and an extension line, wherein the extension line comprises a reinforced core, a plurality of sleeves surrounding the reinforced core, a second sheath surrounding the plurality of sleeves, a first shielding layer coated on the second sheath, and a first sheath coated on the first shielding layer from inside to outside; a core wire is arranged in each sleeve; fillers are arranged between the plurality of sleeves and the second sheath. The utility model has the advantages that the sleeve and the reinforcing core are arranged in the extension line, so that the bending resistance of the extension line can be obviously improved, and the service life of the connecting line is prolonged; the flexibility of the extension line can be further enhanced on the basis of adapting to severe environment by arranging the first sheath and the second sheath which are subjected to irradiation crosslinking, so that the internal core line is protected, and the fracture resistance of the wire is improved; through setting up first shielding layer and second shielding layer, can avoid or reduce the interference of external electromagnetic interference to inside heart yearn, promote wire rod signal transmission's accurate nature.

Description

Photovoltaic connecting wire capable of resisting bending and breaking

Technical Field

The utility model relates to an electric wire technical field, in particular to photovoltaic connecting wire that can anti bending rupture.

Background

The wire is used as a carrier for conducting electric (magnetic) energy and information and is widely applied to aspects of national production and life. With the development of solar technology, various photovoltaic devices and accessories, such as photovoltaic wires, have been greatly developed.

The photovoltaic wire is a cable used on a solar photovoltaic module system, is often exposed in various severe closed or open environments, bears and adapts to various different environments, and is inevitably pressed or pulled by various accidental external forces from nature or man-made, if the wire does not have certain pressure resistance, the use of photovoltaic equipment is influenced, even the photovoltaic equipment is damaged, and great economic loss is caused.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides a photovoltaic connecting wire that can anti bending rupture has that the pliability is good, anti advantage that the ability is strong, long service life buckle.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

a photovoltaic connecting line capable of resisting bending and breaking comprises a connecting terminal connected with a photovoltaic assembly and an extension line connected with the connecting terminal, wherein the extension line comprises a reinforcing core, a plurality of sleeves surrounding the reinforcing core, a second sheath surrounding the sleeves, a first shielding layer wrapping the second sheath, and a first sheath wrapping the first shielding layer from inside to outside; a core wire is arranged in each sleeve; and fillers are arranged between the plurality of sleeves and the second sheath.

As a further elaboration of the above technical solution:

in the above technical solution, the first sheath, the second sheath and the sleeve are all halogen-free polyester insulators subjected to radiation crosslinking treatment, and the thickness of the first sheath is between 0.1 and 0.2 times of the outer diameter of the extension line.

In the above technical solution, the first shielding layer is braided tin-plated copper, and the thickness thereof is between 0.15 and 0.25 m.

In the above technical scheme, every the heart yearn all includes conductor, cladding from inside to outside conductor outlying second shielding layer and cladding are in second shielding layer outlying outer quilt, the second shielding layer comprises mylar parcel aluminium foil, the thickness of second shielding layer is between 0.07 to 0.15 mm.

In the technical scheme, the conductor is formed by combining a plurality of tinned copper wires.

Compared with the prior art, the beneficial effects of the utility model reside in that: the sleeve and the reinforcing core are arranged in the extension line, so that the bending resistance of the extension line can be obviously improved, and the service life of the connecting line is prolonged; the flexibility of the extension line can be further enhanced on the basis of adapting to severe environment by arranging the first sheath and the second sheath which are subjected to irradiation crosslinking, so that the internal core line is protected, and the fracture resistance of the wire is improved; through setting up first shielding layer and second shielding layer, can avoid or reduce the interference of external electromagnetic interference to inside heart yearn, promote wire rod signal transmission's accurate nature.

Drawings

FIG. 1 is a schematic cross-sectional structure of an extension line of the present invention;

fig. 2 is a schematic structural diagram of the center wire of the present invention.

In the figure:

1. a first sheath; 2. a first shielding layer; 3. a second sheath; 4. a sleeve; 5. a reinforcing core; 6. a core wire; 61. an outer quilt; 62. a second shielding layer; 63. a conductor; 601. mylar; 602. aluminum foil; 7. and (4) filling materials.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-2, a photovoltaic connecting wire capable of resisting bending and breaking comprises a connecting terminal connected with a photovoltaic module and an extension line connected with the connecting terminal, wherein the extension line comprises a reinforced core 5, a plurality of sleeves 4 surrounding the reinforced core 5, a second sheath 3 surrounding the sleeves 4, a first shielding layer 2 coated on the second sheath 3, and a first sheath 1 coated on the first shielding layer 2 from inside to outside; each sleeve 4 is internally provided with a core wire 6, and a plurality of sleeves 4 and the second sheath rooms 3 are provided with fillers 7.

It can be understood that the plurality of sleeves 4 can effectively protect the core wire 6 and improve the bending resistance of the extension cord by matching with the reinforcing core 5, and the filler 7 can match with the plurality of sleeves 4 and the core wires 6 inside the sleeves to be fixed in the second sheath 3; on the other hand, also can suitably increase sheath and heart yearn in second sheath 3 as required according to the use, cooperation binding post, it is extensible the utility model discloses an application scope.

As a further elaboration of the above technical solution:

in the above technical solution, the first sheath 1, the second sheath 3 and the sleeve 4 are all halogen-free polyester insulators subjected to radiation crosslinking treatment, and the thickness of the first sheath 1 is between 0.1 and 0.2 times of the outer diameter of the extension line.

It can be understood that the halogen-free flame-retardant polyester insulator has the performances of high temperature resistance, cold resistance, oil resistance, corrosion resistance, ultraviolet radiation resistance, flame retardance, environmental protection and the like after being subjected to radiation crosslinking treatment, and the service life of the sheath can be obviously prolonged.

In the above technical solution, the first shielding layer 2 is braided tin-plated copper, and the thickness thereof is between 0.15 and 0.25 m.

It can be understood that the first shielding layer 2 can shield the interference of external electromagnetic signals to the core wire 6 inside the extension line, and meanwhile, the braided tinned copper wire can firmly combine the second sheath 3 and the first sheath 1 together tightly so as to further enhance the toughness of the extension line.

In the above technical solution, each core wire 6 includes, from inside to outside, a conductor 63, a second shielding layer 62 coated on the periphery of the conductor 63, and an outer cover 61 coated on the periphery of the second shielding layer 62, the second shielding layer 62 is formed by mylar 601 coated with an aluminum foil 602, and the thickness of the second shielding layer 62 is between 0.07 and 0.15 mm.

It can be understood that the second shielding layer 62 can further shield the core wire 6 in the casing 4, so as to protect the core wire 6 from interference of external electromagnetic signals; meanwhile, the second shielding layer 62 has good insulation shielding performance, and is thinner and lighter relative to the first shielding layer 2, so that the core wire 6 is convenient to mount.

In the above technical solution, the conductor 63 is formed by combining a plurality of tinned copper wires.

In the present embodiment, each conductor 63 is formed by combining 54 tinned copper wires with a diameter of 0.3 mm; the reinforced core 5 is a metal rod coated with an insulated polyethylene layer on the surface, so that the mechanical strength of the extension line can be obviously enhanced, and the bending resistance of the extension line is improved; three sleeves 4 are selected for installation of the core wire 6, the number of the sleeves 4 can be increased or reduced in the second sheath 3 according to actual requirements, and the connecting wire is matched with the connecting terminal to expand the application range of the connecting wire.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The photovoltaic connecting line capable of resisting bending and breaking comprises a connecting terminal connected with a photovoltaic assembly and an extension line connected with the connecting terminal, and is characterized in that the extension line comprises a reinforcing core, a plurality of sleeves surrounding the reinforcing core, second sheaths surrounding the sleeves, a first shielding layer wrapping the second sheaths, and a first sheath wrapping the first shielding layer from inside to outside; a core wire is arranged in each sleeve; and fillers are arranged between the plurality of sleeves and the second sheath.

2. The photovoltaic connecting wire capable of resisting bending and breaking of claim 1, wherein the first sheath, the second sheath and the sleeve are all halogen-free polyester insulators subjected to radiation crosslinking treatment, and the thickness of the first sheath is between 0.1 and 0.2 times of the outer diameter of the extension wire.

3. The photovoltaic connecting wire capable of resisting bending and breaking as claimed in claim 1, wherein the first shielding layer is braided tin-plated copper with a thickness of 0.15-0.25 m.

4. The photovoltaic connecting wire capable of resisting bending and breaking as claimed in claim 1, wherein each core wire comprises a conductor, a second shielding layer coated on the periphery of the conductor, and an outer cover coated on the periphery of the second shielding layer from inside to outside, the second shielding layer is formed by mylar-coated aluminum foil, and the thickness of the second shielding layer is between 0.07 and 0.15 mm.

5. The photovoltaic connecting wire capable of resisting bending and breaking of claim 4, wherein the conductor is formed by combining a plurality of tinned copper wires.