Electromagnetic shielding cable

Abstract

The utility model discloses an electromagnetic shielding cable, and belongs to the technical field of cables. Comprising an outer wrapping body, a cable hole is formed in the outer wrapping body, and a branch cable is arranged in the cable hole; the outer wrapping body is externally coated with an outer shielding coating, and the outer shielding coating is coated with an outer protection structure; a separation body is fixedly arranged in the outer bag body, the separation body comprises a separation base body and an inner protection structure, and the inner protection structure is arranged on the surface of the separation base body; the inner protection structure is coated with an inner shielding coating. By arranging the inner shielding coating and the outer shielding coating, electromagnetic signals outside the whole cable can be shielded, the situation that transmission of cable signals is affected by outside electromagnetism is avoided, and mutual influence of electromagnetism between branch cables can be prevented. Meanwhile, the outer protection structure can protect the whole cable, and the arrangement of the inner protection structure can avoid the mutual influence between the branch cables.

Description

Technical Field

[0001] The utility model provides an electromagnetic shielding cable, belonging to the technical field of cables. Background Art

[0002] Cables are often used to transmit various control signals, such as sensor signals, monitoring system signals, etc. These signals can be used to monitor the environment, control equipment, and realize automation and other functions.

[0003] When the external electromagnetic interference intensity is high, the external electromagnetic signal can easily affect the signal transmission of the cable, and even cause distortion or interruption of the transmission signal, affecting the working reliability and safety. At the same time, in the case of multiple branch cables in a cable, when different signals are transmitted between cables, electromagnetic mutual influence will also occur. Not only that, the branch cable is also easily affected by the work of other cables. For example, when one of the branch cables is abnormally hot, it is easy to transfer too much heat to other branch cables. In view of the above problems, an electromagnetic shielding cable is urgently needed to solve them. Utility Model Content

[0004] The technical problem to be solved by the utility model is that for a cable composed of a plurality of branch cables, electromagnetic interference and the like are easily generated between the branch cables, thus affecting the transmission of signals by the cable.

[0005] In order to solve the above problems, the utility model proposes a technical solution: an electromagnetic shielding cable, comprising an outer casing, the outer casing is provided with a cable hole, and a branch cable is arranged in the cable hole; the outer casing is coated with an outer shielding coating outwardly, and an outer protective structure is coated on the outer shielding coating; a separator is fixedly arranged in the outer casing, the separator includes a separator substrate and an inner protective structure, and the inner protective structure is arranged on the surface of the separator substrate; the inner protective structure is coated with an inner shielding coating.

[0006] As an improvement, the outer protective structure comprises an outer wear-resistant layer and an outer heat-insulating layer; the outer heat-insulating layer is coated on the outer shielding coating, and the outer wear-resistant layer is coated on the outer heat-insulating layer.

[0007] As an improvement, the inner protective structure comprises an inner flame retardant layer and an inner heat insulation layer; the inner flame retardant layer is coated on the partition substrate, and the inner heat insulation layer is coated on the inner flame retardant layer.

[0008] As an improvement, the two ends of the separator are provided with inner corrosion-resistant layers, and the separator substrate and the inner protective structure are both within the inner corrosion-resistant layers at both ends.

[0009] Beneficial effects of the utility model:

[0010] The outer body is coated with an outer shielding coating, and an outer protective structure is coated on the outer shielding coating; the inner protective structure is coated with an inner shielding coating. The shielding coating can effectively absorb and shield electromagnetic waves. The present application sets two inner and outer shielding coatings, which can not only shield the electromagnetic signals outside the entire cable, prevent the external electromagnetic from affecting the transmission of cable signals, but also prevent the electromagnetic mutual influence between each branch cable. At the same time, the outer protective structure can protect the entire cable, and the setting of the inner protective structure can avoid the mutual influence between the branch cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a stereoscopic diagram of an electromagnetic shielding cable of the utility model.

[0012] Figure 2 It is a schematic diagram of an outer protective structure of an electromagnetic shielding cable of the utility model.

[0013] Figure 3 It is a schematic diagram of an inner protection structure of an electromagnetic shielding cable of the utility model.

[0014] 1. Outer body; 2. External protective structure; 20. External wear-resistant layer; 21. External heat insulation layer; 3. External shielding coating; 4. Separator; 40. Separator matrix; 41. Internal flame retardant layer; 42. Internal heat insulation layer; 43. Internal corrosion-resistant layer; 5. Cable hole; 6. Branch cable; 7. Internal shielding coating. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] according to Figure 1-3 As shown: The utility model provides an electromagnetic shielding cable: it includes an outer body 1, the outer body 1 is provided with a cable hole 5, and a branch cable 6 is arranged in the cable hole 5; the outer body 1 is coated with an outer shielding coating 3, and the outer shielding coating 3 is coated with an outer protective structure 2; a separator 4 is fixedly arranged in the outer body 1, the separator 4 includes a separator base 40 and an inner protective structure, and the inner protective structure is arranged on the surface of the separator base 40; the inner protective structure is coated with an inner shielding coating 7.

[0017] By setting two inner and outer shielding coatings, not only can the electromagnetic signals outside the entire cable be shielded to prevent the external electromagnetic from affecting the transmission of cable signals, but also the electromagnetic mutual influence between each branch cable 6 can be prevented. At the same time, the outer protective structure 2 can protect the entire cable, and the setting of the inner protective structure can prevent the mutual influence between the branch cables 6.

[0018] The outer protective structure 2 includes an outer wear-resistant layer 20 and an outer heat-insulating layer 21 ; the outer heat-insulating layer 21 is coated on the outer shielding coating 3 , and the outer wear-resistant layer 20 is coated on the outer heat-insulating layer 21 .

[0019] The outer heat insulation layer 21 can isolate the external high temperature and prevent the high temperature from affecting the cable. At the same time, the wear-resistant layer can protect the outer heat insulation layer 21 and the outer shielding layer and prevent them from being damaged by wear.

[0020] The inner protective structure includes an inner flame retardant layer 41 and an inner heat insulation layer 42; the inner flame retardant layer 41 is coated on the partition substrate 40, and the inner heat insulation layer 42 is coated on the inner flame retardant layer 41. The two ends of the partition 4 are provided with inner corrosion resistant layers 43, and the partition substrate 40 and the inner protective structure are both in the inner corrosion resistant layers 43 at both ends.

[0021] The inner protective structure can separate and protect the branch cables 6, preventing high temperature or explosion between the branch cables 6 from affecting other branch cables 6. The inner corrosion-resistant layer 43 can prevent external corrosive substances from entering the separator 4, the inner protective structure and the inner shielding coating 7 to cause corrosion.

[0022] Principle of the utility model

[0023] like Figure 1-2 As shown, the outer heat insulation layer 21 of the outer protective layer can play a role in high temperature resistance, preventing the external heat from being transferred to the cable, and the outer wear-resistant layer 20 can increase the wear resistance of the cable. When the cable is exposed to a lot of external electromagnetic interference, the outer shielding coating 3 can absorb and shield the electromagnetic interference, preventing the external electromagnetic interference from affecting the cable.

[0024] like Figure 1 , 3 As shown, the separator 4 separates each branch cable 6. At the same time, the setting of the inner shielding coating 7 can avoid mutual electromagnetic interference between each branch cable 6. At the same time, the inner flame retardant layer 41 and the inner thermal insulation layer 42 of the inner protective structure can play a flame retardant and thermal insulation role to prevent one branch cable 6 from affecting another branch cable 6 when it is overheated or even explodes.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An electromagnetic shielding cable, comprising an outer casing (1), the outer casing (1) being provided with a cable hole (5), a branch cable (6) being arranged in the cable hole (5); characterized in that: The outer enclosure (1) is coated with an outer shielding coating (3) on the outside, and an outer protective structure (2) is coated on the outer shielding coating (3); a separator (4) is fixedly arranged inside the outer enclosure (1), and the separator (4) includes a separator substrate (40) and an inner protective structure, and the inner protective structure is arranged on the surface of the separator substrate (40); and an inner shielding coating (7) is coated on the inner protective structure.

2. The electromagnetic shielding cable according to claim 1, characterized in that: The outer protective structure (2) comprises an outer wear-resistant layer (20) and an outer heat-insulating layer (21); the outer heat-insulating layer (21) is coated on the outer shielding coating (3), and the outer wear-resistant layer (20) is coated on the outer heat-insulating layer (21).

3. The electromagnetic shielding cable according to claim 1, characterized in that: The inner protective structure comprises an inner flame retardant layer (41) and an inner heat insulation layer (42); the inner flame retardant layer (41) is coated on the separation substrate (40), and the inner heat insulation layer (42) is coated on the inner flame retardant layer (41).

4. The electromagnetic shielding cable according to claim 1, characterized in that: The two ends of the separator (4) are provided with an inner corrosion-resistant layer (43), and the separator base (40) and the inner protective structure are both inside the inner corrosion-resistant layer (43) at both ends.

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