High-shielding control cable
By incorporating inner and outer semiconductive shielding layers and a multi-layered protective structure into the control cable, the problems of unsatisfactory shielding effect and wear were solved, resulting in improved shielding performance and compressive strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-07
AI Technical Summary
The shielding effect of existing control cables is not ideal, and the shielding layer is easily worn when bent, resulting in a reduction in shielding effectiveness.
The conductor core consists of an inner semi-conductive shield, an insulation layer, an outer semi-conductive shield, and a cable protection layer. It is fixed by a keel and filler material, and is further enhanced by a wrapping tape, a rubber sheath, an inner sheath, and steel wire armor to improve the shielding effect and protect the shielding layer.
It improves the shielding effect of the control cable, prevents the shielding layer from being worn when bent, enhances the compressive strength, and ensures the stable use of the cable.
Smart Images
Figure CN224096411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of control cable technology, specifically a highly shielded control cable. Background Technology
[0002] Cables are a common conductor in daily life, usually composed of multiple current-carrying conductors. Control cables are polyvinyl chloride insulated and polyvinyl chloride sheathed control cables suitable for use in industrial and mining enterprises, energy and transportation departments, and for control and protection circuits with AC rated voltage of 450 / 750 volts or less.
[0003] Most existing control cables are shielded only on the outside of the cable conductor and wrapped around the outside of the overall cable. The shielding effect is not ideal. Moreover, control cables need to be bent according to the usage, which can easily wear down the shielding layer and reduce the shielding effect. Therefore, we propose a high-shield control cable to solve the problems mentioned above. Utility Model Content
[0004] The purpose of this utility model is to provide a highly shielded control cable to solve the problems mentioned in the background art. Most current control cables only shield the outside of the cable conductor and the outside of the overall cable, resulting in unsatisfactory shielding effect. Furthermore, control cables need to be bent according to the usage, which easily wears down the shielding layer and reduces the shielding effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a highly shielded control cable, comprising:
[0006] The conductor core includes a core body, an inner semiconductive shield, an insulating layer, an outer semiconductive shield, and a cable protection layer. The core body is provided with an inner semiconductive shield, and the inner semiconductive shield is provided with an insulating layer. The insulating layer is provided with an outer semiconductive shield, and the outer semiconductive shield is provided with a cable protection layer.
[0007] The keel has a conductor core on its outer side and a filler material on its outer side. The filler material is wrapped with a wrapping tape on its outer side, and a shielding layer is provided on the outer side of the wrapping tape. The shielding layer is covered with a rubber sleeve layer, and an inner sheath layer is provided on the outer side of the rubber sleeve layer. The inner sheath layer is covered with a steel wire armor, and the steel wire armor is covered with an outer sheath layer.
[0008] Preferably, the inner semiconductive shield and the outer semiconductive shield have the same thickness.
[0009] Preferably, the cable protective layer, inner sheath, and outer sheath are all made of PVC material, and their thickness increases sequentially from the inside to the outside.
[0010] Preferably, the outer side of the keel is provided with conductor cores at equal angles, and the individual conductor cores are connected by filler material.
[0011] Preferably, the strap has a double helix structure and is made of polyester fiber.
[0012] Preferably, the rubber sleeve layer has an elastic structure.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The high-shield control cable has a conductor core composed of a core body, an inner semi-conductive shield, an insulation layer, an outer semi-conductive shield, and a cable protection layer. It has two shielding layers, which increases the shielding effect of the conductor core itself. The conductor cores inside the inner sheath are fixed by a keel and filler to prevent the conductor cores from twisting. The wrapping tape is wrapped around the outside of the conductor cores to facilitate the fixing of the conductor cores and the use of the shielding layer. The outer sheath layer protects the shielding layer and prevents the shielding layer from being worn when the control cable is bent, thus ensuring the shielding effect of the control cable. The steel wire armor outside the inner sheath enhances the compressive strength of the control cable and facilitates its use. The outer sheath protects the steel wire armor. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0016] Figure 3 This is a top view schematic diagram of the connection structure of the keel rain filler of this utility model.
[0017] In the diagram: 1. Conductor core; 101. Core body; 102. Inner semi-conductive shield; 103. Insulation layer; 104. Outer semi-conductive shield; 105. Cable protection layer; 2. Rib; 3. Filler; 4. Wrapping tape; 5. Shielding layer; 6. Rubber sheath layer; 7. Inner sheath; 8. Steel wire armor; 9. Outer sheath. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-3This utility model provides a technical solution: a high-shield control cable, comprising: conductor core 1, keel 2, filler 3, wrapping tape 4, shielding layer 5, rubber sheath layer 6, inner sheath 7, steel wire armor 8, and outer sheath 9.
[0020] The conductor core 1 includes a core body 101, an inner semiconductive shield 102, an insulation layer 103, an outer semiconductive shield 104, and a cable protection layer 105. The inner semiconductive shield 102 is provided on the outside of the core body 101, and the insulation layer 103 is provided on the outside of the inner semiconductive shield 102. The outer semiconductive shield 104 is provided on the outside of the insulation layer 103, and the cable protection layer 105 is provided on the outside of the outer semiconductive shield 104.
[0021] The keel 2 has a conductor core 1 on its outer side, and a filler 3 on its outer side. The filler 3 is wrapped with a wrapping tape 4 on its outer side, and a shielding layer 5 is provided on the outer side of the wrapping tape 4. A rubber sheath layer 6 is provided on the outer side of the shielding layer 5, and an inner sheath layer 7 is provided on the outer side of the rubber sheath layer 6. A steel wire armor 8 is provided on the outer side of the inner sheath layer 7, and an outer sheath layer 9 is provided on the outer side of the steel wire armor 8.
[0022] like Figure 1 and Figure 2 The inner semiconductive shield 102 and the outer semiconductive shield 104 have the same thickness, which facilitates machine processing and production. The cable protection layer 105, the inner sheath 7 and the outer sheath 9 are all made of PVC material, and their thickness increases from the inside to the outside, which facilitates the production and use of materials.
[0023] like Figure 1 and Figure 3 The outer side of the middle keel 2 is provided with conductor cores 1 at equal angles, and the individual conductor cores 1 are connected by filler 3 to facilitate the fixation of conductor cores 1. The wrapping tape 4 has a double helix structure and is made of polyester fiber to facilitate the fixation of individual conductor cores 1. The rubber sleeve layer 6 has an elastic structure to avoid friction between the shielding layer 5 and the inner sheath 7, thereby avoiding damage to the shielding layer 5.
[0024] Working principle: This highly shielded control cable, such as Figure 2 As shown, the conductor core 1 consists of a core body 101, an inner semiconductive shield 102, an insulation layer 103, an outer semiconductive shield 104, and a cable protection layer 105. It has two shielding layers to enhance the shielding effect of the conductor core 1 itself. The individual conductor cores 1 within the inner sheath 7 are fixed together by a keel 2 and filler 3 to prevent twisting. The wrapping tape 4 is wrapped around the outside of the individual conductor cores 1 for easy fixing and to facilitate the use of the shielding layer 5. Figure 1As shown, the outer sheath layer 6 of the shielding layer 5 facilitates the protection of the shielding layer 5 and prevents wear on the shielding layer 5 when the control cable is bent, thereby ensuring the shielding effect of the control cable. The steel wire armor 8 outside the inner sheath 7 enhances the compressive strength of the control cable and facilitates its use. The outer sheath 9 facilitates the protection of the steel wire armor 8. This is the entire working process of the high-shield control cable. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0025] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A highly shielded control cable, characterized in that, include: The conductor core (1) includes a core body (101), an inner semiconductive shield (102), an insulation layer (103), an outer semiconductive shield (104), and a cable protection layer (105). The core body (101) is provided with an inner semiconductive shield (102) on the outside, and an insulation layer (103) is provided on the outside of the inner semiconductive shield (102). The insulation layer (103) is provided with an outer semiconductive shield (104) on the outside, and a cable protection layer (105) is provided on the outside of the outer semiconductive shield (104). The keel (2) has a conductor core (1) on its outer side and a filler (3) on its outer side. The filler (3) is wrapped with a wrapping tape (4) on its outer side and a shielding layer (5) is provided on its outer side. The shielding layer (5) is covered with a rubber sleeve layer (6) on its outer side and an inner sheath layer (7) is provided on its outer side. The inner sheath layer (7) is covered with a steel wire armor (8) on its outer side and an outer sheath layer (9) is provided on its outer side.
2. The high-shield control cable according to claim 1, characterized in that: The inner semiconductive shield (102) and the outer semiconductive shield (104) have the same thickness.
3. The high-shield control cable according to claim 1, characterized in that: The cable protective layer (105), inner sheath (7) and outer sheath (9) are all made of PVC material, and their thickness increases from the inside to the outside.
4. The high-shield control cable according to claim 1, characterized in that: The keel (2) is provided with conductor cores (1) at equal angles on its exterior, and the conductor cores (1) are connected to each other by filler (3).
5. A high-shield control cable according to claim 1, characterized in that: The strap (4) has a double helix structure and is made of polyester fiber.
6. A highly shielded control cable according to claim 1, characterized in that: The rubber sleeve layer (6) has an elastic structure.