Shielded control cable

Abstract

The utility model discloses a control cable with a shielding function. The control cable comprises a sheath, a first shielding layer, a first flame-retardant layer, a first tensile rope, a cooling partition plate and a conductor, the first tensile rope is located in the center of the cable; a plurality of conductors are arranged on the outer side of the first tensile rope and surround the outer side of the first tensile rope by a circle; a first flame-retardant layer is arranged on the outer side of the conductor; a first shielding layer is arranged on the outer side of the first flame-retardant layer; the sheath is arranged on the outer side of the first shielding layer; and the cooling partition plate is arranged between the two conductors surrounding the outer side of the first tensile rope. According to the utility model, the first flame-retardant layer and the second flame-retardant layer are arranged, so that the flame-retardant performance of the control cable is improved; meanwhile, the cooling partition plates are arranged between the conductors, and the first tensile rope is arranged in the center of the cable, so that the overall tensile strength of the cable can be ensured while a cooling function is provided for the cable, and the cable can stably, safely and continuously transmit signals.

Description

Technical Field

[0001] The utility model relates to the technical field of cable manufacturing, in particular to a shielded control cable. Background Art

[0002] Shielded control cables are important equipment in industrial production environments and are widely used in petrochemical, nuclear power plants, subways and other places. These places usually have potential fire risks. Therefore, the safety performance of control cables is crucial to ensure the normal operation of production equipment, the safe evacuation of maintenance personnel and the reduction of economic losses. However, there are still some problems with existing control cables; first, existing flame retardants can only play a flame retardant role in a short period of time. Once the fire lasts for a long time, the protective effect of the cable will be greatly reduced. Secondly, with the development of communication technology, the signal transmission pressure that control cables need to bear has increased, and control cables are prone to heat during operation, which reduces the service life of control cables and is not conducive to the safe and stable transmission of signals. Utility Model Content

[0003] The purpose of the utility model is to provide a shielded control cable, which can improve the flame retardant performance of the control cable; at the same time, while providing cooling function for the cable, it can also ensure the overall tensile strength of the cable, so that the cable can stably and safely transmit signals continuously. The specific technical solution is as follows:

[0004] A shielded control cable comprises a sheath, a first shielding layer, a first flame-retardant layer, a first tensile rope, a cooling baffle and a conductor; the first tensile rope is located at the center of the cable; a plurality of conductors are arranged on the outside of the first tensile rope, and the conductors are surrounded on the outside of the first tensile rope; a first flame-retardant layer is arranged on the outside of the conductor; a first shielding layer is arranged on the outside of the first flame-retardant layer; a sheath is arranged on the outside of the first shielding layer; and the cooling baffle is arranged between two conductors surrounded on the outside of the first tensile rope.

[0005] Preferably, an insulating layer is arranged on the outside of the conductor; a second shielding layer is arranged on the outside of the insulating layer; and a second flame-retardant layer is arranged on the outside of the second shielding layer.

[0006] Preferably, four conductors are arranged on the outside of the first anti-tension rope; a cooling baffle is respectively arranged on the upper and lower sides and the left and right sides of the first anti-tension rope, and the cooling baffle separates the four conductors.

[0007] Preferably, one end of the cooling baffle is connected to the inner wall of the first flame retardant layer, and the other end faces the first tensile rope.

[0008] Preferably, the cooling baffle is a cross-linked polyethylene plate.

[0009] Preferably, it further comprises a second anti-tension rope; a through hole is opened in the middle of the cooling baffle, and the second anti-tension rope is arranged in the through hole.

[0010] Compared with the existing technology, the utility model has the following beneficial effects:

[0011] The utility model improves the flame retardant performance of the control cable by arranging a first flame retardant layer and a second flame retardant layer; at the same time, a cooling partition is arranged between the conductors, and a first tensile rope is arranged in the center of the cable, which can provide a cooling function for the cable while ensuring the overall tensile strength of the cable, so that the cable can continuously transmit signals stably and safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a conductor of the utility model.

[0015] Description of main reference numerals:

[0016] 1-sheath, 2-first shielding layer, 3-first flame retardant layer, 4-first tensile rope, 5-cooling baffle, 6-conductor, 7-second tensile rope, 8-second flame retardant layer, 9-second shielding layer, 10-insulating layer. DETAILED DESCRIPTION

[0017] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0021] Example 1

[0022] As shown in the figure, a shielded control cable includes a sheath, a first shielding layer, a first flame retardant layer, a first anti-tension rope, a cooling baffle and a conductor; the first anti-tension rope is located at the center of the cable; a plurality of conductors are arranged on the outside of the first anti-tension rope, and the conductors are surrounded on the outside of the first anti-tension rope; a first flame retardant layer is arranged on the outside of the conductor; a first shielding layer is arranged on the outside of the first flame retardant layer; a sheath is arranged on the outside of the first shielding layer; and the cooling baffle is arranged between two conductors surrounded on the outside of the first anti-tension rope.

[0023] Next, the working principle of the embodiment is described in detail to enable those skilled in the art to better understand the present invention:

[0024] The first anti-pull rope arranged in the center of the cable can improve the mechanical strength of the cable and ensure the stability of the cable during installation and use. The conductor arranged outside the first anti-pull rope is the transmission part of the cable. The first flame retardant layer outside the conductor is made of flame retardant materials, such as halogen-containing or halogen-free polymers, which can slow down the spread of flames in the event of a fire and improve safety. The first shielding layer outside the first flame retardant layer is composed of a copper wire braided mesh, which is used to provide electromagnetic compatibility and reduce the impact of external electromagnetic interference on signal transmission. The outermost sheath plays a protective role and is made of a wear-resistant, chemical-resistant and environmentally resistant material, such as PVC.

[0025] Example 2

[0026] The difference between this embodiment and embodiment 1 is that an insulating layer is arranged outside the conductor; a second shielding layer is arranged outside the insulating layer; and a second flame retardant layer is arranged outside the second shielding layer. The second shielding layer and the second flame retardant layer are arranged outside the insulating layer to further enhance the anti-interference ability and flame retardant performance of the cable. The double shielding and flame retardant design make the cable more suitable for use in complex electromagnetic environments.

[0027] The working principle of this embodiment is the same as that of Embodiment 1.

[0028] Example 3

[0029] The difference between this embodiment and embodiment 2 is that four conductors are arranged outside the first tensile rope; a cooling baffle is arranged on the upper and lower sides and the left and right sides of the first tensile rope respectively, and the cooling baffle separates the four conductors. The cooling baffle separates the four conductors to control the temperature of the cable under high load, improve the heat dissipation efficiency, and extend the service life of the cable.

[0030] The working principle of this embodiment is the same as that of Embodiment 1.

[0031] Example 4

[0032] The difference between this embodiment and embodiment 3 is that one end of the cooling baffle is connected to the inner wall of the first flame retardant layer, and the other end faces the first tensile rope. One end of the cooling baffle is connected to the inner wall of the first flame retardant layer to improve the stability of the cooling baffle.

[0033] The working principle of this embodiment is the same as that of Embodiment 1.

[0034] Example 5

[0035] The difference between this embodiment and embodiment 4 is that the cooling baffle is a cross-linked polyethylene plate. The cooling baffle is a cross-linked polyethylene plate, which has good thermal conductivity and can provide heat dissipation and insulation functions for the cable at the same time.

[0036] The working principle of this embodiment is the same as that of Embodiment 1.

[0037] Example 6

[0038] This embodiment differs from Embodiment 5 in that it further comprises a second tensile rope; a through hole is opened in the middle of the cooling baffle, and the second tensile rope is arranged in the through hole. The second tensile rope is used to further enhance the mechanical strength of the cable, especially in applications where the cable needs to withstand greater mechanical stress. The second tensile rope is arranged in the through hole in the middle of the cooling baffle, which can improve the overall strength and tensile resistance of the cooling baffle.

[0039] The working principle of this embodiment is the same as that of Embodiment 1.

[0040] In summary, the utility model improves the flame retardant performance of the control cable by arranging the first flame retardant layer and the second flame retardant layer; at the same time, a cooling partition is arranged between the conductors, and a first tensile rope is arranged in the center of the cable, which can provide cooling function for the cable while ensuring the overall tensile strength of the cable, so that the cable can continuously transmit signals stably and safely.

[0041] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A shielded control cable, characterized in that: It includes a sheath, a first shielding layer, a first flame retardant layer, a first anti-tension rope, a cooling baffle and a conductor; the first anti-tension rope is located at the center of the cable; a plurality of conductors are arranged on the outside of the first anti-tension rope, and the conductors are surrounded on the outside of the first anti-tension rope; a first flame retardant layer is arranged on the outside of the conductor; a first shielding layer is arranged on the outside of the first flame retardant layer; a sheath is arranged on the outside of the first shielding layer; and the cooling baffle is arranged between two conductors surrounded on the outside of the first anti-tension rope.

2. A shielded control cable according to claim 1, characterized in that: An insulating layer is arranged outside the conductor; a second shielding layer is arranged outside the insulating layer; and a second flame-retardant layer is arranged outside the second shielding layer.

3. A shielded control cable according to claim 1, characterized in that: Four conductors are arranged on the outside of the first tensile rope; a cooling baffle is arranged on the upper and lower sides and the left and right sides of the first tensile rope respectively, and the cooling baffle separates the four conductors respectively.

4. A shielded control cable according to claim 1, characterized in that: One end of the cooling baffle is connected to the inner wall of the first flame retardant layer, and the other end faces the first tensile rope.

5. The shielded control cable according to claim 1, characterized in that: The cooling baffle is a cross-linked polyethylene plate.

6. The shielded control cable according to claim 1, characterized in that: It also includes a second anti-tension rope; a through hole is opened in the middle of the cooling baffle, and the second anti-tension rope is arranged in the through hole.

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