A strong shielding type weak current cable

Abstract

This utility model provides a strongly shielded low-voltage cable, relating to the field of low-voltage cable technology. The strongly shielded low-voltage cable includes several wire harness bodies and a protective outer shell. Each wire harness body has a tinned copper layer on its outer side, a copper foil shielding layer on the outer side of each tinned copper layer, an aluminum foil shielding layer on the outer side of each copper foil shielding layer, and a stainless steel braided layer on the outer side of each aluminum foil shielding layer. Several partitions are fixed in the middle of the protective outer shell, and reinforcing ribs are fixed at adjacent ends of the partitions. This strongly shielded low-voltage cable achieves a strong shielding effect through the tinned copper layer, copper foil shielding layer, aluminum foil shielding layer, and stainless steel braided layer on the outer side of the wire harness body, thereby improving the performance of the low-voltage cable. The partitions separate the wire harness bodies, achieving a stable protective effect and extending the service life of the low-voltage cable.

Description

Technical Field

[0001] This utility model relates to a strongly shielded low-voltage cable, belonging to the field of low-voltage cable technology. Background Technology

[0002] In the context of rapid technological advancements, low-voltage cables, as a critical infrastructure for information transmission, are becoming increasingly important. From everyday smart home devices to high-end scientific research instruments and large-scale industrial automation systems, low-voltage cables bear the heavy responsibility of signal transmission.

[0003] In current low-voltage system applications, while existing low-voltage cables can handle daily signal transmission tasks, they reveal numerous problems in real-world usage scenarios. In complex cabling environments, multiple different cables often operate simultaneously. Especially during 5G signal transmission, the interweaving of various electrical signals generated by different conductors, coupled with the unavoidable radiation from the cables during operation, severely interferes with the 5G signal transmission of the low-voltage cables, resulting in suboptimal performance. Furthermore, the lack of effective protective measures between cable bundles makes them prone to collisions and damage, leading to a shorter lifespan for the low-voltage cables. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This utility model provides a strongly shielded low-voltage cable to solve the problems of poor performance and short service life of existing low-voltage cables.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: a strong shielded weak current cable, comprising several wire harness bodies and a protective shell, wherein each wire harness body is provided with a tin-plated copper layer on the outside, each tin-plated copper layer is provided with a copper foil shielding layer on the outside, each copper foil shielding layer is provided with an aluminum foil shielding layer on the outside, and each aluminum foil shielding layer is provided with a stainless steel braided layer on the outside.

[0008] The protective shell has several partitions fixed in the middle, and reinforcing ribs are fixed at the near ends of the partitions. Each partition has rubber pads fixed on both sides, and each rubber pad has several through grooves in the middle.

[0009] Preferably, a plurality of the through grooves extend through the middle of each rubber pad, wherein two rubber pads are in contact with the outer surface of each stainless steel braided layer on their proximal sides.

[0010] Preferably, several of the partitions are arranged in a ring and fixed to the side of the reinforcing rib, and the reinforcing rib is located in the middle of the protective shell.

[0011] Preferably, a plurality of the partitions and reinforcing ribs form a closed space, and each partition is disposed between two adjacent wire harness bodies.

[0012] Preferably, a plurality of the wire harness bodies are disposed inside the protective housing, and the inner wall of the protective housing is in contact with the outer surface of the stainless steel braided layer.

[0013] Preferably, the tin-plated copper layer is made by electroplating a layer of tin onto the surface of copper, and the copper foil shielding layer is made of copper in the form of a foil.

[0014] Preferably, the aluminum foil shielding layer is made of aluminum in foil shape, and the stainless steel braided layer is made of stainless steel in a mesh structure formed by a braiding process.

[0015] This utility model provides a strongly shielded low-voltage cable, which has the following beneficial effects:

[0016] (1) This strong shielded low-voltage cable achieves a strong shielding effect through the tin-plated copper layer, copper foil shielding layer, aluminum foil shielding layer and stainless steel braiding layer set on the outside of the cable body, which effectively avoids the signal transmission being affected by external interference, thereby improving the performance of the low-voltage cable.

[0017] (2) The strong shielded low voltage cable separates the cable body by setting a partition, so that the protective shell, partition, reinforcing rib, rubber pad and through groove work together to achieve a stable protective effect, avoid damage to the cable body due to bumps, and thus extend the service life of the low voltage cable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial cross-sectional view of the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention.

[0021] [Explanation of Key Component Symbols]

[0022] 1. Wire harness body; 2. Tinned copper layer; 3. Copper foil shielding layer; 4. Aluminum foil shielding layer; 5. Stainless steel braided layer; 6. Protective shell; 7. Partition; 8. Reinforcing rib; 9. Rubber pad; 10. Through groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Example 1

[0025] This utility model embodiment provides a strongly shielded low-voltage cable.

[0026] Please see Figure 1 , Figure 2 and Figure 3 It includes several wire harness bodies 1 and a protective shell 6. The wire harness body 1 is a low-voltage wire harness, which is used to transmit low-voltage and low-current signals. The working voltage is usually below 36V, which contrasts with the high-voltage wire harness used to transmit high voltage and high current. Its main function is to realize signal transmission and control between various electronic devices and systems, and to ensure the normal operation and function realization of the equipment. Each wire harness body 1 is provided with a tinned copper layer 2 on the outside, each tinned copper layer 2 is provided with a copper foil shielding layer 3 on the outside, each copper foil shielding layer 3 is provided with an aluminum foil shielding layer 4 on the outside, and each aluminum foil shielding layer 4 is provided with a stainless steel braided layer 5 on the outside.

[0027] Please refer to it again. Figure 1 , Figure 2 and Figure 3 It is worth noting that the tin-plated copper layer 2 is made by electroplating a layer of tin onto the surface of copper, the copper foil shielding layer 3 is made of copper into a foil shape, the aluminum foil shielding layer 4 is made of aluminum into a foil shape, and the stainless steel braided layer 5 is made of stainless steel into a mesh structure through a braiding process.

[0028] In use, this invention utilizes a tin-plated copper layer 2 on the outer side of the wire harness body 1. This layer, made of copper with tin plating, leverages the excellent conductivity of copper to provide rapid and stable current conduction, ensuring smooth signal transmission within the core wire. In complex electromagnetic environments, when interference currents are generated, the tin-plated copper layer 2, with its conductivity, initially guides the interference current away, creating the first line of electromagnetic shielding for the core wire. Next, the copper foil shielding layer 3 comes into play. Soft and highly conductive, it provides excellent shielding against low-frequency electromagnetic interference. On one hand, it further blocks low-frequency interference signals leaking from the tin-plated copper layer 2; on the other hand, it effectively blocks low-frequency interference from the outside, guiding these interference currents to the ground, further ensuring the stability of signal transmission. The aluminum foil shielding layer 4 focuses on shielding against high-frequency interference. Lightweight and corrosion-resistant, it offers significant advantages in high-frequency applications such as 5G signal transmission. The aluminum foil shielding layer 4 effectively blocks high-frequency electromagnetic interference from entering the cable, complementing the copper foil shielding layer 3 which primarily targets low-frequency interference, thus comprehensively enhancing the overall shielding performance of the cable. The outermost stainless steel braided layer 5, made of stainless steel, possesses high strength and excellent conductivity. It not only provides mechanical protection against external impacts and friction, preventing damage to the cable harness body 1 and the internal shielding layer, ensuring normal cable operation, but its conductivity also shields against electromagnetic interference, further enhancing the cable's anti-interference capability in complex environments. This strong shielding effectively prevents signal transmission from being affected by external interference, thereby improving the performance of low-voltage cables.

[0029] Example 2

[0030] Please see Figure 1 , Figure 2 and Figure 3 Based on Embodiment 1, a protective and stable function has been added;

[0031] Please refer to it again. Figure 1 , Figure 2 and Figure 3 It is worth noting that several partitions 7 are fixed in the middle of the protective shell 6, and reinforcing ribs 8 are fixed at the near ends of the partitions 7. Rubber pads 9 are fixed on both sides of each partition 7. Several through grooves 10 are opened in the middle of each rubber pad 9. Several through grooves 10 pass through the middle of each rubber pad 9. The near sides of two rubber pads 9 are in contact with the outer surface of each stainless steel braided layer 5. Several partitions 7 are fixed in a ring on the side of the reinforcing ribs 8. The reinforcing ribs 8 are set in the middle of the protective shell 6.

[0032] Please refer to it again. Figure 1 , Figure 2 and Figure 3It is worth noting that several partitions 7 and reinforcing ribs 8 form a closed space. Each partition 7 is set between two adjacent wire harness bodies 1. Several wire harness bodies 1 are set inside the protective shell 6. The inner wall of the protective shell 6 is in contact with the outer surface of the stainless steel braided layer 5.

[0033] In use, this invention separates the wire harness body 1 using partitions 7. This ensures that the outermost stainless steel braided layer 5 of the wire harness body 1 remains stable under the stable support of the rubber pads 9 fixed on both sides of the partitions 7, and in conjunction with the protective outer shell 6. Simultaneously, utilizing the rubber material properties of the rubber pads 9, a certain pressure is applied to the wire harness body 1 to fix its position while providing protection, achieving a stable protective effect and preventing damage to the wire harness body 1 from impacts, thereby extending the service life of the low-voltage cable.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A strongly shielded low-voltage cable, comprising several cable harness bodies (1) and a protective outer shell (6), characterized in that: Each of the wire harness bodies (1) is provided with a tin-plated copper layer (2) on the outside, a copper foil shielding layer (3) is provided on the outside of each of the tin-plated copper layers (2), an aluminum foil shielding layer (4) is provided on the outside of each of the copper foil shielding layers (3), and a stainless steel braided layer (5) is provided on the outside of each of the aluminum foil shielding layers (4). The protective shell (6) has several partitions (7) fixed in the middle, and the partitions (7) have reinforcing ribs (8) fixed at their near ends. Each partition (7) has rubber pads (9) fixed on both sides, and each rubber pad (9) has several through grooves (10) in the middle.

2. The strongly shielded low-voltage cable according to claim 1, characterized in that: Several of the through grooves (10) penetrate the middle of each rubber pad (9), with the adjacent sides of two rubber pads (9) contacting the outer surface of each stainless steel braided layer (5).

3. The strongly shielded low-voltage cable according to claim 1, characterized in that: Several partitions (7) are fixed in a ring on the side of the reinforcing rib (8), which is located in the middle of the protective shell (6).

4. The strongly shielded low-voltage cable according to claim 1, characterized in that: Several partitions (7) and reinforcing ribs (8) form a closed space, and each partition (7) is disposed between two adjacent wire harness bodies (1).

5. A strongly shielded low-voltage cable according to claim 1, characterized in that: Several of the wire harness bodies (1) are disposed inside the protective housing (6), and the inner wall of the protective housing (6) is in contact with the outer surface of the stainless steel braided layer (5).

6. The strongly shielded low-voltage cable according to claim 1, characterized in that: The tin-plated copper layer (2) is made by electroplating a layer of tin onto the copper surface, and the copper foil shielding layer (3) is made of copper into a foil shape.

7. The strongly shielded low-voltage cable according to claim 1, characterized in that: The aluminum foil shielding layer (4) is made of aluminum in foil shape, and the stainless steel braided layer (5) is made of stainless steel in a mesh structure formed by braiding process.

Images