An electromagnetic shielded cable

Abstract

This utility model relates to the field of electromagnetic shielding cable technology, and more particularly to an electromagnetic shielding cable that solves the problems of poor electromagnetic shielding effect and inconvenience in fixing cables together in the prior art. An electromagnetic shielding cable includes several conductors, each conductor covered with a plastic sleeve. A shielding layer is fitted between the conductors, and a metal mesh layer is fitted on the surface of the shielding layer. A protective layer is fitted on the surface of the metal mesh layer, and a grounding wire is provided between the shielding layer and the metal mesh layer. A limiting mechanism is provided on the surface of the protective layer. This utility model enhances the shielding effect, resulting in better electromagnetic shielding of the cable. It provides a strong and secure fixing effect on the cable, effectively clamping the cable and preventing slippage, facilitating the fixing of cables together for use.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielded cable technology, and in particular to an electromagnetic shielded cable. Background Technology

[0002] Cables are insulated wires used to transmit electrical energy or signals. They play a crucial role in power systems, communication systems, and various electrical equipment. The conductor is the core part of the cable, responsible for transmitting electrical energy or signals. It is usually made of copper or aluminum and has excellent conductivity. The conductor can be solid or stranded to increase flexibility.

[0003] Chinese Patent Publication No. CN222106281U relates to the field of cable technology and proposes an electromagnetic shielded cable, including a cable body, a conductor shielding layer attached to the surface of the cable body, an isolation sleeve attached to the surface of the conductor shielding layer, a connecting groove inside the isolation sleeve, a reinforcing wire attached to the inside of the connecting groove, an electromagnetic shielding sleeve attached to the surface of the isolation sleeve, an insulation sleeve tightly attached to the surface of the electromagnetic shielding sleeve, and an outer protective sleeve tightly attached to the surface of the insulation sleeve. In this utility model, by setting the connecting groove, the reinforcing wire can be hidden inside itself, preventing the reinforcing wire from protruding and affecting other components. The reinforcing wire can improve the tensile strength of the cable, and the electromagnetic shielding sleeve can reflect electromagnetic waves back, thereby reducing the propagation of electromagnetic radiation. By setting the insulation sleeve, the cable body can be effectively prevented from failing in low-temperature weather.

[0004] Existing electromagnetic shielding cables cannot effectively shield against electromagnetic interference in practical use, affecting signal transmission. Furthermore, when using electromagnetic shielding cables, it is inconvenient to fix the cables in pairs, making it difficult to use them together. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnetic shielding cable that solves the problems of poor electromagnetic shielding effect and inconvenience in fixing cables together in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electromagnetic shielded cable includes several conductors, the surface of which is covered with a plastic sleeve, a shielding layer is provided between the conductors, a metal mesh layer is provided on the surface of the shielding layer, a protective layer is provided on the surface of the metal mesh layer, a grounding wire is provided between the shielding layer and the metal mesh layer, and a limiting mechanism is provided on the surface of the protective layer.

[0008] Preferably, the limiting mechanism includes a middle block, and circular clamping blocks are fixedly connected to both sides of the middle block.

[0009] Preferably, the surface of the clamping block is provided with a clamping groove, and the surface of one of the clamping blocks is provided with an inlet and outlet, and the protective layer passes through the inside of the clamping groove.

[0010] Preferably, the interior of the intermediate block has a cross-shaped through groove.

[0011] Preferably, a spring block is fixedly connected inside the through groove.

[0012] Preferably, protruding blocks are fixedly connected to both sides of the elastic block.

[0013] This utility model has the following beneficial effects:

[0014] When cables are needed, electromagnetic shielding can be achieved through an aluminum shielding layer. The shielding layer can also be grounded through a grounding wire, which can conduct away the induced electromagnetic energy through the ground wire, enhancing the shielding effect and making the electromagnetic shielding effect of the cable better. In use, two cables can be inserted into the clamping slot. The elastic force at the inlet and outlet of one cable applies pressure to the protruding block, causing the elastic block to deform and squeeze the other cable. This squeezes and clamps the cable inside the clamping slot without an inlet or outlet, which can produce a strong and safe fixing effect on the cable, effectively clamping the cable and preventing slippage, making it convenient to fix the cables together for use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A side view of the central block;

[0018] Figure 3 for Figure 2 A cross-sectional view;

[0019] Figure 4 for Figure 3 A side view diagram showing the removal of the elastic block and protruding block;

[0020] Figure 5 for Figure 1 A cross-sectional view of the middle protective layer.

[0021] In the diagram: 1. Wire; 2. Plastic sleeve; 3. Shielding layer; 4. Metal mesh layer; 5. Protective layer; 6. Grounding wire; 7. Limiting mechanism; 701. Intermediate block; 702. Clamping block; 703. Clamping groove; 704. Inlet / outlet; 705. Through groove; 706. Elastic block; 707. Protruding block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-5 An electromagnetic shielded cable includes several conductors 1, each conductor 1 covered with a plastic sleeve 2. The plastic sleeve 2 is made of plastic and protects the conductors 1. A shielding layer 3 is sandwiched between the conductors 1. The shielding layer 3 is made of aluminum. The shielding effect mainly stems from the conductive properties of aluminum as a metal. When electromagnetic waves encounter a metal material, they are reflected by the metal surface, similar to mirror reflection of light. Aluminum has good conductivity and can reflect most electromagnetic waves back, reducing their penetration into the shielded area. The small amount of electromagnetic waves that penetrate the aluminum surface will induce eddy currents inside the aluminum. The energy of the eddy currents will dissipate as heat, further attenuating the electromagnetic waves. The shielding layer 3... The surface is provided with a metal mesh layer 4, which is made of metal. Metal has a strong resistance to external signals. A protective layer 5 is covered on the surface of the metal mesh layer 4. The protective layer 5 is a protective sleeve, usually made of plastic, which can protect the internal structure and prevent damage to the internal structure through collisions, cutting, etc. A grounding wire 6 is provided between the shielding layer 3 and the metal mesh layer 4. The grounding wire 6 can ground the shielding layer 3 and conduct away the induced electromagnetic energy through the grounding wire 6, thereby enhancing the shielding effect. A limiting mechanism 7 is provided on the surface of the protective layer 5. The limiting mechanism 7 can easily clamp the protective layer 5, thereby easily fixing the two cables together and facilitating the combined use of the cables.

[0024] Furthermore, the limiting mechanism 7 includes an intermediate block 701, with circular clamping blocks 702 fixedly connected to both sides of the intermediate block 701, so that the intermediate block 701 and the clamping blocks 702 can be assembled into a shape to clamp two cable structures.

[0025] Furthermore, the surface of the clamping block 702 is provided with a clamping groove 703, and the surface of one of the clamping blocks 702 is provided with an inlet and outlet 704. The protective layer 5 passes through the inside of the clamping groove 703. When it is necessary to clamp two cables, the cables can be inserted into the inside of the clamping groove 703. One of the cables can enter the clamping groove 703 inside one of the clamping blocks 702 through the inlet and outlet 704. The clamping block 702 is made of a material with a certain elasticity, which makes it easy for the cable to be squeezed into the inside of the clamping groove 703 from the inlet and outlet 704. The inlet and outlet 704 applies a certain compressive elastic force to the cable.

[0026] Furthermore, the interior of the intermediate block 701 is provided with a cross-shaped through groove 705, which can easily connect the two clamping grooves 703 and prevent the intermediate block 701 from completely blocking the two clamping grooves 703.

[0027] Furthermore, an elastic block 706 is fixedly connected inside the through groove 705. After the cable enters the clamping groove 703, the clamping block 702 with inlet and outlet 704 will squeeze the cable due to its own elasticity, so that the cable can squeeze the elastic block 706, causing the elastic block 706 to deform and squeeze the cable inside the clamping groove 703 without inlet and outlet 704, thereby making it easy to squeeze and clamp the cable.

[0028] Furthermore, protruding blocks 707 are fixedly connected to both sides of the elastic block 706. When the cable squeezes the elastic block 706, the protruding blocks 707 can facilitate the cable to apply force to the elastic block 706, so that the cable can be clamped by squeezing the clamping block 702.

[0029] In summary:

[0030] When clamping electromagnetically shielded cables for ease of use, the cable is first inserted into the clamping groove 703 on the surface of a clamping block 702 on the intermediate block 701. Then, another cable is fed into the clamping groove 703 on another clamping surface through the inlet / outlet 704. During this process, the other cable applies pressure to the elastic block 706 in the through groove 705 through the protruding block 707, causing the elastic block 706 to deform and thus compressing the cable. The cable is clamped and compressed. The cable itself is protected by the protective layer 5 to prevent damage to the internal structure from impacts and cuts. Afterwards, it passes through a metal mesh. Layer 4 and shielding layer 3 shield electromagnetic signals. The metal material effectively shields electromagnetic signals, and the grounding wire 6 grounds the shielding layer 3, allowing the induced electromagnetic energy to be conducted away, thus enhancing the shielding effect. This prevents the conductor 1 inside the shielding layer 3 from electromagnetic interference. The conductor 1 is protected by a plastic sleeve 2 to prevent friction damage between the conductor 1 and the shielding layer 3. Through the above structure, external interference is effectively shielded, ensuring reliable signal transmission and improving the durability of the cable. The use of elastic clamps provides a strong and secure fixation effect for the cable, effectively clamping it and preventing slippage, ensuring the normal use of the cable.

[0031] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic shielded cable, comprising a plurality of conductors (1), characterized in that, The surface of the conductor (1) is covered with a plastic sleeve (2), a shielding layer (3) is covered between several conductors (1), a metal mesh layer (4) is provided on the surface of the shielding layer (3), a protective layer (5) is provided on the surface of the metal mesh layer (4), a grounding wire (6) is provided between the shielding layer (3) and the metal mesh layer (4), and a limiting mechanism (7) is provided on the surface of the protective layer (5).

2. The electromagnetic shielded cable according to claim 1, characterized in that, The limiting mechanism (7) includes an intermediate block (701), and circular clamping blocks (702) are fixedly connected to both sides of the intermediate block (701).

3. The electromagnetic shielded cable according to claim 2, characterized in that, The surface of the clamping block (702) is provided with a clamping groove (703), and one of the clamping blocks (702) is provided with an inlet and outlet (704) on its surface. The protective layer (5) passes through the inside of the clamping groove (703).

4. An electromagnetic shielded cable according to claim 2, characterized in that, The interior of the intermediate block (701) has a cross-shaped through groove (705).

5. An electromagnetic shielded cable according to claim 4, characterized in that, An elastic block (706) is fixedly connected inside the through groove (705).

6. An electromagnetic shielded cable according to claim 5, characterized in that, Both sides of the elastic block (706) are fixedly connected with protruding blocks (707).

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