A flexible cable for copper core polyvinyl chloride insulated stranded type connection

Abstract

The utility model discloses a kind of copper core polyvinyl chloride insulated twisted type connection soft cable for, including: conductor, insulation, first filling layer, second filling layer and reinforcing assembly, insulation is set on the outer wall of conductor, first filling layer is set on the outer wall of insulation, second filling layer is set on the outer wall of first filling layer, reinforcing assembly includes the reinforcing member being arranged at the connecting place of first filling layer and second filling layer, the middle part of reinforcing member is provided with the bending member for bending, reinforcing member includes the reinforcing plate being arranged at the outer wall of first filling layer, the side of reinforcing plate is provided with second insertion block. The utility model is through the design of first filling layer, second filling layer, reinforcing member and bending member, reinforcing member is arranged at the connecting place of first filling layer and second filling layer, cable is strengthened by reinforcing assembly, and by the design of bending member, so that cable can be bent, so that the softness of cable is guaranteed while the strength of cable is strengthened.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a flexible cable for stranded connection with copper core and polyvinyl chloride insulation. Background Technology

[0002] Copper-core PVC insulated stranded flexible cables are widely used for flexible connections between various electrical equipment. They need to possess both good flexibility to withstand frequent bending and sufficient mechanical strength to ensure structural integrity under external forces. Existing flexible cables often improve flexibility by increasing the conductor strand pitch or reducing the insulation thickness, but this often leads to a decrease in the cable's tensile and compressive strength, making it prone to conductor breakage. Therefore, this solution proposes a copper-core PVC insulated stranded flexible cable to address these issues. Utility Model Content

[0003] The purpose of this utility model is to provide a flexible cable with copper core and polyvinyl chloride insulated stranded connection to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flexible cable with copper core and polyvinyl chloride insulated stranded connection, comprising: conductor; An insulating layer, wherein the insulating layer is sleeved on the outer wall of the conductor; A first filling layer is sleeved on the outer wall of the insulating layer; The second filling layer is sleeved on the outer wall of the first filling layer; The reinforcing component includes a reinforcing member disposed at the connection between the first filling layer and the second filling layer, and a bending member for bending is disposed in the middle of the reinforcing member.

[0005] Preferably, the reinforcing member includes a reinforcing plate disposed on the outer wall of the first filling layer, a second insertion block disposed on one side of the reinforcing plate, and a first insertion block fixedly connected to the other side of the reinforcing plate.

[0006] Preferably, the cross-section of the reinforcing plate is arc-shaped.

[0007] Preferably, both the first insertion block and the second insertion block are cone-shaped, with the second insertion block inserted into one side of the first filling layer and the first insertion block inserted into the inner wall of the second filling layer.

[0008] Preferably, the bending member includes bending grooves formed on both sides of the reinforcing plate, and the horizontal longitudinal section of the bending groove is set as an isosceles trapezoid.

[0009] Preferably, the outer wall of the second filling layer is fitted with a polyester tape, and the outer wall of the polyester tape is fitted with a shielding layer.

[0010] Preferably, the outer wall of the shielding layer is provided with a braided layer, which is used to increase the strength of the cable.

[0011] Preferably, the outer wall of the braided layer is fitted with a sheath, which is used to protect the cable.

[0012] The technical effects and advantages of this utility model are as follows: This utility model incorporates a first filling layer, a second filling layer, a reinforcing member, and a bending member. The reinforcing member is positioned at the junction of the first and second filling layers. The cable is reinforced by the reinforcing components, and the bending member allows the cable to be bent, thereby enhancing the cable's strength while maintaining its flexibility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the layered structure of this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of the reinforcing component of this utility model.

[0015] In the figure: 1. Conductor; 2. Insulation layer; 3. First filler layer; 4. Reinforcing component; 401. Bending groove; 402. First insert block; 403. Reinforcing plate; 404. Second insert block; 5. Second filler layer; 6. Polyester tape; 7. Shielding layer; 8. Braided layer; 9. Sheath. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides, for example Figure 1 and Figure 2 The copper core PVC insulated stranded flexible cable shown includes: Conductor 1; Insulating layer 2 is sleeved on the outer wall of conductor 1; The first filling layer 3 is sleeved on the outer wall of the insulating layer 2; The second filling layer 5 is fitted onto the outer wall of the first filling layer 3; The reinforcing component 4 includes a reinforcing member disposed at the connection between the first filling layer 3 and the second filling layer 5, and a bending member for bending is disposed in the middle of the reinforcing member; The outer wall of the second filler layer 5 is fitted with a polyester tape 6, the outer wall of the polyester tape 6 is fitted with a shielding layer 7, the outer wall of the shielding layer 7 is fitted with a braided layer 8, the braided layer 8 is used to increase the strength of the cable, and the outer wall of the braided layer 8 is fitted with a sheath 9, the sheath 9 is used to protect the cable.

[0018] It should be noted that the conductor 1 and insulation layer 2 inside the cable are not simply bundled together, but are twisted together in a spiral like a "braid" according to a specific direction and pitch; the conductor 1 is made of copper metal and is used for conduction during use; the insulation layer 2 is made of polyvinyl chloride, which has excellent high temperature resistance, high mechanical strength, stable electrical performance, good chemical stability, and is environmentally friendly and safe; in multi-core cables, the main function of the polyester tape 6 is to tightly bind and fix the multiple cores inside, forming a stable and round cable core structure; the first filling layer 3 and the second filling layer 5 are filler ropes used to fill the gaps between the polyester tape 6 and the insulation layer 2 to improve the mechanical and electrical performance of the cable. The material of these filler ropes is cotton thread, which is a natural fiber material that is soft and has good moisture absorption. The cotton thread filling can improve the flexibility and finish of the cable; The shielding layer 7 is made of aluminum foil, which has high shielding performance and its main function is to reduce electromagnetic interference. The braided layer 8 is made of galvanized steel wire, which has high tensile strength and impact resistance, effectively protecting the internal structure of the cable from mechanical damage. The outer layer of the galvanized steel wire is zinc-plated, which has good corrosion resistance and protects the steel wire itself from moisture, chemicals and oxidation. The sheath 9 is made of silicone rubber as the base material with added halogen-free flame retardant. After adding halogen-free flame retardant, the rubber material has good flame retardant effect and reduces the smoke and toxic gases produced during combustion. The reinforcing member is set at the connection between the first filling layer 3 and the second filling layer 5. The cable is reinforced by the reinforcing component 4, and the bending member design allows the cable to be bent, thereby increasing the cable strength while ensuring the cable's flexibility.

[0019] Specifically, the reinforcing member includes a reinforcing plate 403 disposed on the outer wall of the first filling layer 3, a second insert block 404 disposed on one side of the reinforcing plate 403, and a first insert block 402 fixedly connected to the other side of the reinforcing plate 403. The cross-section of the reinforcing plate 403 is set as arc shape. Both the first insert block 402 and the second insert block 404 are set as cones. The second insert block 404 is inserted and connected to one side of the first filling layer 3, and the first insert block 402 is inserted and connected to the inner wall of the second filling layer 5. The bending member includes bending grooves 401 opened on both sides of the reinforcing plate 403. The horizontal longitudinal cross-section of the bending groove 401 is set as an isosceles trapezoid.

[0020] It should be noted that the reinforcing component 4 is integrally stamped, and the first insertion block 402 and the second insertion block 404 are both conical. In use, the first insertion block 402 and the second insertion block 404 can be inserted and connected inside the second filling layer 5 and the first filling layer 3. Through this design, the movement of the reinforcing plate 403 is restricted, thereby strengthening the connection between the second filling layer 5, the first filling layer 3 and the reinforcing plate 403, thus fixing the reinforcing plate 403 inside the cable. The bending groove 401 is opened on the reinforcing plate 403, and the groove facilitates the bending of the reinforcing plate 403, thereby enhancing the flexibility of the cable.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible cable with copper core and polyvinyl chloride insulated stranded connection, characterized in that, include: Conductor (1); An insulating layer (2) is fitted onto the outer wall of the conductor (1); The first filling layer (3) is sleeved on the outer wall of the insulating layer (2); The second filling layer (5) is fitted onto the outer wall of the first filling layer (3); The reinforcing component (4) includes a reinforcing member disposed at the connection between the first filling layer (3) and the second filling layer (5), and a bending member for bending is disposed in the middle of the reinforcing member.

2. The flexible cable for stranded connection with copper core and polyvinyl chloride insulation according to claim 1, characterized in that, The reinforcing member includes a reinforcing plate (403) disposed on the outer wall of the first filling layer (3), a second insertion block (404) is disposed on one side of the reinforcing plate (403), and a first insertion block (402) is fixedly connected to the other side of the reinforcing plate (403).

3. A flexible cable for stranded connection with copper core and polyvinyl chloride insulation according to claim 2, characterized in that, The cross-section of the reinforcing plate (403) is set to be arc-shaped.

4. A flexible cable for stranded connection with copper core and polyvinyl chloride insulation according to claim 2, characterized in that, Both the first insertion block (402) and the second insertion block (404) are set as cones. The second insertion block (404) is inserted into one side of the first filling layer (3), and the first insertion block (402) is inserted into the inner wall of the second filling layer (5).

5. A flexible cable for stranded connection with copper core and polyvinyl chloride insulation according to claim 2, characterized in that, The bending component includes bending grooves (401) formed on both sides of the reinforcing plate (403), and the horizontal longitudinal section of the bending grooves (401) is set as an isosceles trapezoid.

6. A flexible cable for stranded connection with copper core and polyvinyl chloride insulation according to claim 1, characterized in that, The outer wall of the second filling layer (5) is covered with a polyester tape (6), and the outer wall of the polyester tape (6) is covered with a shielding layer (7).

7. A flexible cable for stranded connection with copper core and polyvinyl chloride insulation according to claim 6, characterized in that, The outer wall of the shielding layer (7) is covered with a braided layer (8), which is used to increase the strength of the cable.

8. A flexible cable for stranded connection with copper core and polyvinyl chloride insulation according to claim 7, characterized in that, The outer wall of the braided layer (8) is fitted with a sheath (9), which is used to protect the cable.

Images