Alternating current and direct current transmission aluminum alloy power cable for photovoltaic power generation system

Abstract

The utility model discloses an AC / DC transmission aluminum alloy power cable for a photovoltaic power generation system, which comprises an upper support frame and a lower support frame, the upper support frame and the lower support frame are arch-bridge-shaped, at least one cable core is arranged between the upper support frame and the lower support frame, two side walls of the upper support frame and the lower support frame are clamped through side fastening frames, and the upper support frame and the lower support frame are clamped through the side fastening frames. And tensile wires are arranged in the side fastening frames. According to the utility model, the arch-shaped upper support frame and the arch-shaped lower support frame are arranged, and according to the arch bridge principle, when the upper surface or the lower surface is extruded, the stress at the center of the arch-shaped surface is minimum, so that the technical problem of weak compression resistance of the cable in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an AC / DC transmission aluminum alloy power cable for a photovoltaic power generation system. Background Art

[0002] Wires and cables are indispensable in my country's infrastructure. With the continuous development of the economy, the demand for cables is also rising.

[0003] However, most cables currently are cylindrical, and are provided with a cross-shaped support frame inside to achieve compression resistance. Such a design has weak compression resistance. Utility Model Content

[0004] The main purpose of the utility model is to provide an aluminum alloy power cable for AC and DC transmission in a photovoltaic power generation system, aiming to solve the technical problem of weak compression resistance of the cable in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides an AC / DC transmission aluminum alloy power cable for a photovoltaic power generation system, comprising an upper support frame and a lower support frame, both of which are arch bridge-shaped, at least one cable core is arranged between the upper support frame and the lower support frame, and the two side walls of the upper support frame and the lower support frame are clamped by a side fastening frame, and a tensile wire is arranged inside the side fastening frame.

[0006] Furthermore, the cable core is sheathed with an insulating flame-retardant sheath, and the insulating flame-retardant sheath is sheathed with an insulating protective sheath.

[0007] Furthermore, the upper support frame is provided with an angular groove, the lower support frame is provided with an angular protrusion, the angular protrusion is embedded in the angular groove, and the angular protrusion and the angular groove are bonded by glue.

[0008] Furthermore, both the upper support frame and the lower support frame are provided with a card slot, and the side buckling frame is provided with a card block, and the card block is buckled in the card slot.

[0009] Furthermore, the upper support frame, the lower support frame and the side fastening frame are covered with an outer sheath, and the material of the outer sheath is polyvinyl chloride.

[0010] Furthermore, the insulating flame-retardant sleeve is made of silane cross-linked polyethylene, and the insulating protective sleeve is made of polyvinyl chloride.

[0011] Furthermore, the cable core is made of aluminum alloy.

[0012] The beneficial effects of the utility model are embodied in:

[0013] In the utility model, an arched upper support frame and a lower support frame are provided. According to the arch bridge principle, when the upper or lower side is squeezed, the center of the arched surface is subjected to the smallest force, thereby solving the technical problem of weak compression resistance of the cable in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional front view of the utility model;

[0015] Figure 2 It is a schematic cross-sectional diagram of the internal three-dimensional structure of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Description of reference numerals:

[0018] 1. Upper support frame, 1a. angular groove, 2. Lower support frame, 2a. angular convex groove, 2b. card slot, 3. cable core, 4. insulating flame retardant sleeve, 5. insulating protective sleeve, 6. side buckle frame, 6a. card block, 7. tensile wire, 8. outer sheath. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0022] See also Figures 1 to 3 The utility model provides an AC / DC transmission aluminum alloy power cable for a photovoltaic power generation system, comprising an upper support frame 1 and a lower support frame 2, both of which are arch bridge shaped, at least one cable core 3 is arranged between the upper support frame 1 and the lower support frame 2, and the side walls of the upper support frame 1 and the lower support frame 2 are clamped by a side fastening frame 6, and a tensile wire 7 is arranged inside the side fastening frame 6.

[0023] Existing cables have weak compressive performance; in the utility model, an arched upper support frame and a lower support frame are provided. According to the arch bridge principle, when the upper or lower side is squeezed, the center of the arched surface is subjected to the smallest force, thereby improving the compressive capacity of the cable.

[0024] In some embodiments, see Figure 2 As shown in Figure 3, the cable core 3 is sheathed with an insulating flame retardant sheath 4, and the insulating flame retardant sheath 4 is sheathed with an insulating protective sheath 5.

[0025] In some embodiments, see Figure 2 As shown, the upper support frame 1 is provided with an angular groove 1a, and the lower support frame 2 is provided with an angular protrusion 2a, the angular protrusion 2a is embedded in the angular groove 1a, and the angular protrusion 2a and the angular groove 1a are bonded by glue.

[0026] In some embodiments, see Figure 2 As shown, both the upper support frame 1 and the lower support frame 2 are provided with a card slot 2b, and the side fastening frame 6 is provided with a card block 6a, and the card block 6a is buckled in the card slot 2b.

[0027] It should be noted that, with such a design, the upper support frame and the lower support frame are engaged with each other, thereby preventing cracks between the upper support frame and the lower support frame when the cable is bent.

[0028] In some embodiments, see Figure 1As shown, the upper support frame 1, the lower support frame 2, and the side fastening frame 6 are covered with an outer sheath 8, and the material of the outer sheath 8 is polyvinyl chloride.

[0029] It should be noted that the outer sheath is used to protect the cable and is waterproof and corrosion-resistant.

[0030] In some embodiments, see Figure 2 As shown in Figure 3, the insulating flame retardant sleeve 4 is made of silane cross-linked polyethylene, and the insulating protective sleeve 5 is made of polyvinyl chloride.

[0031] In some embodiments, see Figure 2 As shown, the cable core 3 is made of aluminum alloy.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An AC / DC transmission aluminum alloy power cable for a photovoltaic power generation system, comprising an upper support frame (1) and a lower support frame (2), characterized in that The upper support frame (1) and the lower support frame (2) are both in an arch bridge shape, at least one cable core (3) is arranged between the upper support frame (1) and the lower support frame (2), and the side walls of the upper support frame (1) and the lower support frame (2) are engaged by a side fastening frame (6), and a tensile wire (7) is arranged inside the side fastening frame (6).

2. The AC / DC transmission aluminum alloy power cable for photovoltaic power generation system according to claim 1, characterized in that: The cable core (3) is sheathed with an insulating flame-retardant sheath (4), and the insulating flame-retardant sheath (4) is sheathed with an insulating protective sheath (5).

3. The AC / DC transmission aluminum alloy power cable for photovoltaic power generation system according to claim 1, characterized in that: The upper support frame (1) is provided with an angular groove (1a), and the lower support frame (2) is provided with an angular protrusion (2a). The angular protrusion (2a) is embedded in the angular groove (1a), and the angular protrusion (2a) and the angular groove (1a) are bonded by glue.

4. The AC / DC transmission aluminum alloy power cable for photovoltaic power generation system according to claim 1, characterized in that: The upper support frame (1) and the lower support frame (2) are both provided with a card slot (2b), and the side buckling frame (6) is provided with a card block (6a), and the card block (6a) is buckled in the card slot (2b).

5. The AC / DC transmission aluminum alloy power cable for photovoltaic power generation system according to claim 4, characterized in that: The upper support frame (1), the lower support frame (2) and the side fastening frame (6) are covered with an outer sheath (8) on their outer peripheries, and the outer sheath (8) is made of polyvinyl chloride.

6. The AC / DC transmission aluminum alloy power cable for photovoltaic power generation system according to claim 2, characterized in that: The insulating flame-retardant sleeve (4) is made of silane cross-linked polyethylene, and the insulating protective sleeve (5) is made of polyvinyl chloride.

7. The AC / DC transmission aluminum alloy power cable for photovoltaic power generation system according to claim 2, characterized in that: The cable core (3) is made of aluminum alloy.

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