Aluminum alloy conductor flat photovoltaic cable

Abstract

The utility model relates to the technical field of cables, and particularly provides an aluminum alloy conductor flat photovoltaic cable, which comprises a sheath and a plurality of wire cores arranged in the sheath, and the plurality of wire cores are arranged side by side. The sheath comprises an inner sheath and an outer sheath, a spacing cavity is reserved between the inner sheath and the outer sheath, and a plurality of buffer pieces are arranged in the spacing cavity; according to the cable, the supporting bodies used for separating the cable cores are arranged between every two adjacent cable cores, external acting force can be synchronously resisted through the interval cavities and the buffering pieces, the buffering effect is achieved, the internal cable cores are protected, the cable cores are not prone to being damaged, and therefore the stability and safety of the cable in the daily use process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and in particular to a flat photovoltaic cable with an aluminum alloy conductor. Background Art

[0002] Flat photovoltaic cable is a cable specially used in solar photovoltaic system. It has a flat shape design and is suitable for connection between solar photovoltaic panels. This cable is usually UV-resistant, heat-resistant and weather-resistant to ensure long-term stable operation in outdoor environment. Flat photovoltaic cable is usually made of special materials that can withstand the high voltage and high current generated in photovoltaic system to ensure the safety and stability of the system. It is very important to choose high-quality flat photovoltaic cable when installing and maintaining solar photovoltaic system.

[0003] However, since the upper and lower surfaces of the sheath of the flat photovoltaic cable are basically flat, when it is squeezed by external force, the internal wire core is squeezed more severely and is easily damaged. Utility Model Content

[0004] The purpose of the utility model is to provide an aluminum alloy conductor flat photovoltaic cable, which can simultaneously resist external forces through spacing cavities and buffers, play a buffering role, protect the internal wire core, and is not easily damaged, thereby ensuring the stability and safety of the cable during daily use.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A flat photovoltaic cable with an aluminum alloy conductor comprises a sheath and a plurality of cores arranged in the sheath, wherein the plurality of cores are arranged side by side; the sheath comprises an inner sheath and an outer sheath, a spacer cavity is left between the inner sheath and the outer sheath, and a plurality of buffers are arranged in the spacer cavity; a support body for separating the cores is arranged between two adjacent cores.

[0007] Furthermore, the buffer member is an elastic support bar.

[0008] Furthermore, the cross section of the buffer is in an arc shape that bends toward the outer sheath side.

[0009] Furthermore, at least one buffer is provided at the spacing cavity corresponding to the top of the wire core.

[0010] Furthermore, one end of the support body close to the inner sheath has an arc-shaped support protrusion bent toward the inner sheath side.

[0011] Furthermore, the wire core body includes a plurality of twisted aluminum alloy conductors, an insulating layer, a metal protective layer and a shielding layer.

[0012] Furthermore, flame retardant silicone rubber is filled between the shielding layer, the support body and the inner sheath layer.

[0013] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0014] The utility model has a reasonable design and a simple structure. When the cable is subjected to external compression, the inner sheath, the outer sheath and the buffer can be used to buffer the external force. A spacing cavity is left between the inner sheath and the outer sheath, so that the external force can be dispersed and released to a certain extent. In this way, the external force can be resisted synchronously by the spacing cavity and the buffer, thereby playing a buffering role, protecting the internal wire core from being easily damaged, thereby ensuring the stability and safety of the cable during daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of an aluminum alloy conductor flat photovoltaic cable provided in an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the structure of the wire core provided by an embodiment of the utility model;

[0018] Icon: 1-sheath, 11-outer sheath, 12-inner sheath, 13-spacer cavity, 14-buffer, 2-support body, 3-core, 31-shielding layer, 32-metal protective layer, 33-insulating layer, 34-aluminum alloy conductor, 4-flame retardant silicone rubber. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Example 1

[0021] A flat photovoltaic cable with an aluminum alloy conductor comprises a sheath 1 and a plurality of cores 3 (specifically, two cores 3 in this embodiment) arranged in the sheath 1, wherein the plurality of cores 3 are arranged side by side; the sheath 1 comprises an inner sheath 121 and an outer sheath 111, a spacing cavity 13 is left between the inner sheath 121 and the outer sheath 111, and a plurality of buffers 14 are arranged in the spacing cavity 13; a support body 2 for separating the cores 3 is arranged between two adjacent cores 3.

[0022] When the cable is subjected to external compression, the inner sheath 121, the outer sheath 111 and the buffer 14 can be used to buffer the external force, and a spacing cavity 13 is left between the inner sheath 121 and the outer sheath 111, so that the external force can be dispersed and released to a certain extent. In this way, the spacing cavity 13 and the buffer 14 can simultaneously resist the external force, play a buffering role, protect the internal wire core 3, and make it not easily damaged, thereby ensuring the stability and safety of the cable during daily use.

[0023] In this embodiment, the buffer member 14 is an elastic support bar, which can provide a certain elastic support between the inner sheath 121 and the outer sheath 111 to resist external forces and maintain strength and stability in use.

[0024] In this embodiment, the cross-section of the buffer 14 is an arc-shaped portion that bends toward the outer sheath 111 , so that when subjected to an external force, the bend at the top of the buffer 14 is first exposed to the force, that is, the force is basically concentrated on the buffer 14 , thereby reducing the extrusion of the internal wire core 3 .

[0025] In this embodiment, at least one buffer member 14 is provided at the spacing cavity 13 corresponding to the top of the wire core 3. The buffer member 14 is used to protect and support the top of the wire core 3 to protect the wire core 3 from excessive squeezing force, thereby ensuring that the wire core 3 is not easily damaged.

[0026] In this embodiment, the end of the support body 2 close to the inner sheath 121 has an arc-shaped support protrusion bent toward the inner sheath 121, thereby providing a certain supporting effect on the inner sheath 121 and the outer sheath 111 as a whole, while providing a certain buffering force to prevent the internal space of the wire core 3 from being excessively squeezed, thereby ensuring the overall stability of the wire core 3.

[0027] In this embodiment, the main body of the core 3 includes a plurality of twisted aluminum alloy conductors 34, an insulating layer 33, a metal protective layer 32 and a shielding layer 31; wherein the insulating layer 33 can be selected from plastic insulating materials and rubber insulating materials, such as polyethylene (PE), cross-linked polyethylene (XLPE), polyvinyl chloride (PVC), etc.; the metal protective layer 32 can be selected from aluminum; the metal protective layer 32 can be selected from aluminum-plastic composite film; the shielding layer 31 can be used to shield the generated electromagnetic field in the cable to protect the surrounding components from electromagnetic interference; in addition, local discharge between the insulating layer 33 and the sheath 1 can also be avoided, thereby improving the electrical performance and service life of the cable.

[0028] In this embodiment, flame-retardant silicone rubber 4 is filled between the shielding layer 31 and the support body 2 and the inner sheath 121, so that the placement of multiple cores 3 is more stable, the occurrence of internal confusion is reduced, and a certain buffering effect and flame-retardant effect are exerted.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An aluminum alloy conductor flat photovoltaic cable, characterized in that: It comprises a sheath and a plurality of wire cores arranged in the sheath, wherein the plurality of wire cores are arranged side by side; The sheath comprises an inner sheath and an outer sheath, a spacer cavity is left between the inner sheath and the outer sheath, and a plurality of buffer members are arranged in the spacer cavity; A support body for separating the wire cores is arranged between two adjacent wire cores.

2. The aluminum alloy conductor flat photovoltaic cable according to claim 1, characterized in that: The buffer member is an elastic support bar.

3. The aluminum alloy conductor flat photovoltaic cable according to claim 2, characterized in that: The cross section of the buffer is in an arc shape that bends toward the outer sheath side.

4. The aluminum alloy conductor flat photovoltaic cable according to claim 3, characterized in that: At least one buffer is arranged at the spacing cavity corresponding to the top of the wire core.

5. The aluminum alloy conductor flat photovoltaic cable according to claim 1, characterized in that: One end of the support body close to the inner sheath is provided with an arc-shaped support protrusion bent toward the inner sheath side.

6. The aluminum alloy conductor flat photovoltaic cable according to claim 1, characterized in that: The wire core body comprises, from the inside to the outside, a plurality of twisted aluminum alloy conductors, an insulating layer, a metal protective layer and a shielding layer.

7. The aluminum alloy conductor flat photovoltaic cable according to claim 6, characterized in that: Flame-retardant silicone rubber is filled between the shielding layer, the support body and the inner sheath layer.

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