High-frequency signal anti-interference communication wire harness

Abstract

This utility model discloses a high-frequency signal anti-interference communication harness, including a conductor and a connector plug fixedly disposed at one end of the conductor; an isolation frame, which is fixedly sleeved on the surface of the conductor; a first shielding layer, which is fixedly sleeved on the surface of the isolation frame; a second shielding layer, which is fixedly sleeved on the surface of the first shielding layer; a third shielding layer, which is fixedly sleeved on the surface of the second shielding layer; a sheath, which is fixedly sleeved on the surface of the third shielding layer; an insulating layer, which fills the side of the third shielding layer and the sheath that are close to each other; and a communication interface, which is fixedly connected to the surface of the connector plug. This utility model achieves anti-interference effect on the harness by setting up the isolation frame, the first shielding layer, the second shielding layer, the third shielding layer, and the insulating layer in coordination, reducing the influence of external electromagnetic waves on the harness and preventing signal transmission disorder and distortion.

Description

Technical Field

[0001] This utility model relates to the field of wire harness technology, and in particular to a high-frequency signal anti-interference communication wire harness. Background Technology

[0002] Wire harnesses are wiring components that connect various electrical devices in a circuit. Wire harnesses are generally composed of insulating sheaths, terminals, wires, and insulating wrapping materials. With the advent of the 5G era, the demand for electronic communication technology is increasing, not only for the efficiency of communication transmission, but also for the medium of communication transmission.

[0003] Existing communication harnesses have poor anti-interference performance. During signal transmission, especially in high-frequency signal transmission, the harnesses are easily affected by external electromagnetic waves. The insufficient anti-interference capability of the harnesses can easily cause signal disturbance and distortion, making it difficult for the equipment to work properly.

[0004] To address this issue, we propose a high-frequency signal anti-interference communication harness. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as insufficient anti-interference capability of wire harnesses, which leads to signal transmission disorder and signal transmission distortion. Therefore, this invention proposes a high-frequency signal anti-interference communication wire harness.

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

[0007] A high-frequency signal anti-interference communication harness includes a conductor and a connector plug fixedly disposed at one end of the conductor;

[0008] An isolation frame is fixedly sleeved on the surface of the conductor;

[0009] Shielding layer one, which is fixedly sleeved on the surface of the isolation frame;

[0010] Second shielding layer, which is fixedly sleeved on the surface of first shielding layer;

[0011] The third shielding layer is fixedly sleeved on the surface of the second shielding layer.

[0012] Sheath, the sheath being fixedly fitted onto the surface of shielding layer three;

[0013] An insulating layer, which fills the sides of the shielding layer and the sheath that are close to each other;

[0014] A communication interface, which is fixedly connected to the surface of the connector plug;

[0015] An anti-bending device is installed on the surface of the connector to prevent bending at the connection point between the wire harness and the connector.

[0016] Preferably, the isolation frame is composed of several annular supports and several connecting ribs welded together. The several annular supports are evenly distributed in the transverse direction of the conductor, and the several connecting ribs are evenly distributed in the circumferential direction of the annular supports. The connecting ribs are used to connect multiple annular supports in series to form a cage-like structure.

[0017] Preferably, the first shielding layer is a stainless steel wire mesh, the second shielding layer is a silver-plated copper foil, and the third shielding layer is composed of aluminum foil and tin-plated copper wire mesh.

[0018] Preferably, the insulating layer is silicone rubber, the sheath is neoprene rubber, and the insulating layer is used to fill the annular gap between the shielding layer and the sheath.

[0019] Preferably, the anti-bending device includes two clamps sleeved on both sides of the connector plug, the two clamps are fixedly connected by bolts, a support plate is fixedly connected to the surface of one clamp, a screw is threadedly connected to the surface of the support plate, a support frame is rotatably connected to one end of the screw, two rotating shafts are fixedly connected to the surface of the support frame, and a protective plate is rotatably connected to the arc surface of the rotating shaft.

[0020] Preferably, a protective strip, which is a rubber strip, is fixedly connected to the inner wall of the protective plate.

[0021] Preferably, each of the two protective plates has a magnetic element embedded on its side that is close to each other, and the magnetic element is a magnet.

[0022] Preferably, the surface of the support plate is slidably connected to two guide rods, both of which are fixedly connected to the support frame.

[0023] The beneficial effects of this utility model are:

[0024] 1: By setting up an isolation frame, shielding layer one, shielding layer two, shielding layer three and insulation layer, the anti-interference effect of the wire harness is achieved, reducing the influence of external electromagnetic waves on the wire harness, which causes signal transmission disorder and signal transmission distortion.

[0025] 2: By setting up an anti-bending device, the bending resistance at the connection between the wire harness and the connector is improved, reducing the likelihood of the wire harness being damaged or broken due to prolonged bending at the connector during use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a high-frequency signal anti-interference communication harness proposed in this utility model.

[0027] Figure 2This is a cross-sectional structural diagram of the present invention.

[0028] Figure 3 This utility model Figure 2 A partial structural diagram.

[0029] Figure 4 This is a schematic diagram of the structure of the clamp of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the protective plate of this utility model.

[0031] In the diagram: 1. Conductor; 2. Isolation frame; 3. Shielding layer one; 4. Shielding layer two; 5. Shielding layer three; 6. Insulation layer; 7. Sheath; 8. Connecting plug; 9. Communication interface; 10. Clamp; 11. Support plate; 12. Screw; 13. Guide rod; 14. Support frame; 15. Rotating shaft; 16. Protective plate; 17. Protective strip; 18. Magnetic component. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Reference Figure 1-5 A high-frequency signal anti-interference communication harness includes a conductor 1 and a connector plug 8 fixedly disposed at one end of the conductor 1; an isolation frame 2, which is fixedly sleeved on the surface of the conductor 1; a first shielding layer 3, which is fixedly sleeved on the surface of the isolation frame 2; a second shielding layer 4, which is fixedly sleeved on the surface of the first shielding layer 3; a third shielding layer 5, which is fixedly sleeved on the surface of the second shielding layer 4; a sheath 7, which is fixedly sleeved on the surface of the third shielding layer 5; an insulating layer 6, which fills the side of the third shielding layer 5 and the sheath 7 that are close to each other; a communication interface 9, which is fixedly connected to the surface of the connector plug 8; and an anti-bending device disposed on the surface of the connector plug 8 to prevent bending at the connection between the harness and the connector plug 8.

[0034] In this embodiment, conductor 1, isolation frame 2, shielding layer 1 3, shielding layer 2 4, shielding layer 3 5, insulation layer 6 and sheath 7 together form a wire harness, and the connector plug 8 is located at one end of the wire harness. The conductor 1 is made of high-purity oxygen-free copper with a diameter of 0.5mm to 2mm.

[0035] Reference Figure 1-5The isolation frame 2 is composed of several annular supports and several connecting ribs welded together. The several annular supports are evenly distributed in the transverse direction of the conductor 1, and the several connecting ribs are evenly distributed in the circumferential direction of the annular supports. The connecting ribs are used to connect multiple annular supports in series to form a cage-like structure. The shielding layer 3 is a stainless steel wire woven mesh, the shielding layer 4 is a silver-plated copper foil, and the shielding layer 5 is composed of aluminum foil and tin-plated copper wire woven mesh. The insulation layer 6 is silicone rubber, and the sheath 7 is a neoprene rubber sleeve. The insulation layer 6 is used to fill the annular gap between the shielding layer 5 and the sheath 7.

[0036] In this embodiment, the isolation frame 2 is made of polycarbonate, wherein the inner diameter of the annular support is 0.2mm~0.5mm larger than the diameter of the conductor 1 (e.g., when the diameter of the conductor 1 is 1mm, the inner diameter is 1.2mm), and the outer diameter is adapted to the inner diameter of the shielding layer 3. The isolation frame 2 is arranged at intervals of 50mm~100mm along the axial direction of the wire harness, and both ends are in contact with the inner wall of the shielding layer 3. The isolation frame 2 is used to isolate the conductor 1 from the shielding layer 3 to prevent electromagnetic coupling, and at the same time to fix the position of the conductor 1 to avoid signal attenuation caused by vibration.

[0037] The shielding layer 3 is made of 1Cr18Ni9Ti stainless steel wire mesh, which is directly wrapped around the outer wall of the isolation frame 2. The magnetic field is confined within the shielding body by the shielding layer 3, suppressing low-frequency magnetic field interference (such as leakage magnetic field from motors and transformers).

[0038] The material of shielding layer 4 is silver-plated copper foil with a smooth, non-oxidized surface. It is combined with shielding layer 3 through electrostatic adsorption or micro-welding, and grounded at both ends to form a low-impedance path. High-frequency electromagnetic interference is attenuated through surface reflection and internal eddy current loss.

[0039] The shielding layer 35 is made of aluminum foil and tin-plated copper wire braided mesh. The aluminum foil is wrapped around the shielding layer 24, and the outer layer is covered with copper wire braided mesh. The aluminum foil suppresses high-frequency electrostatic noise, and the copper mesh enhances flexibility and mechanical stress resistance.

[0040] The insulating layer 6 is made of silicone rubber and is uniformly filled between the outer wall of the shielding layer 3 5 and the inner wall of the sheath 7. It is used to reduce signal loss (low dielectric constant reduces dielectric loss), prevent micro-discharge (foamed structure increases creepage distance), absorb vibration energy, and protect the shielding layer 3 5.

[0041] The sheath 7 is made of neoprene rubber, which wraps around the outer wall of the insulation layer 6. Both ends are sealed with heat shrink tubing or tape to provide physical protection (scratch protection, chemical corrosion protection) and environmental isolation (waterproof IP68, UV protection).

[0042] The above structure enables full-band anti-interference from 1MHz to 40GHz, meeting the needs of 5G communication, new energy vehicles, and industrial automation scenarios.

[0043] Reference Figure 1-5The anti-bending device includes two clamps 10 fitted on both sides of the connector plug 8. The two clamps 10 are fixedly connected by bolts. A support plate 11 is fixedly connected to the surface of one clamp 10. A screw 12 is threadedly connected to the surface of the support plate 11. A support frame 14 is rotatably connected to one end of the screw 12. Two rotating shafts 15 are fixedly connected to the surface of the support frame 14. A protective plate 16 is rotatably connected to the arc surface of the rotating shaft 15. A protective strip 17, which is a rubber strip, is fixedly connected to the inner wall of the protective plate 16. Magnetic attractors 18, which are magnets, are embedded in the sides of the two protective plates 16 that are close to each other. Two guide rods 13 are slidably connected to the surface of the support plate 11. Both guide rods 13 are fixedly connected to the support frame 14.

[0044] In this embodiment, two clamps 10 are placed on both sides of the connector plug 8 to make them contact each other, and the two clamps 10 are fixed to the connector plug 8 with bolts. At this time, the two guard plates 16 are separated by rotating the pivot 15, and the height of the support frame 14 is adjusted by the screw 12 so that the guard plates 16 can be fitted onto the sheath 7 of the wire harness. Then, the two guard plates 16 are rotated to bring them closer together, so that the magnetic attractors 18 on the two guard plates 16 contact each other. The magnetic force between the magnetic attractors 18 connects the two guard plates 16 and forms a ring. Then, the screw 12 is rotated, and the screw 12 drives the support frame 14 to move up and down, so that the support frame 14 drives the guard plates 16 to move. At this time, the guard plates 16 keep the wire harness and the connector plug 8 horizontal, reducing the possibility of bending at the connection between the wire harness and the connector plug 8 during use, which could lead to damage to the wire harness.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-frequency signal anti-interference communication harness, characterized in that, include Conductor (1) and connector (8) fixedly installed at one end of conductor (1); An isolation frame (2) is fixedly sleeved on the surface of the conductor (1); Shielding layer one (3), the shielding layer one (3) is fixedly sleeved on the surface of the isolation frame (2); Shielding layer two (4), which is fixedly sleeved on the surface of shielding layer one (3); Shielding layer three (5), which is fixedly sleeved on the surface of shielding layer two (4); Sheath (7), the sheath (7) is fixedly sleeved on the surface of shielding layer three (5); An insulating layer (6) is filled on the side of the shielding layer (5) and the sheath (7) that are close to each other; Communication interface (9), which is fixedly connected to the surface of the connector (8); An anti-bending device is provided on the surface of the connector (8) to prevent bending at the connection point between the wire harness and the connector (8).

2. The high-frequency signal anti-interference communication harness according to claim 1, characterized in that, The isolation frame (2) is composed of several ring supports and several connecting ribs welded together. The several ring supports are evenly distributed in the transverse direction along the conductor (1), and the several connecting ribs are evenly distributed in the circumferential direction along the ring supports. The connecting ribs are used to connect multiple ring supports in series to form a cage structure.

3. The high-frequency signal anti-interference communication harness according to claim 1, characterized in that, The shielding layer one (3) is a stainless steel wire mesh, the shielding layer two (4) is a silver-plated copper foil, and the shielding layer three (5) is composed of aluminum foil and tin-plated copper wire mesh.

4. The high-frequency signal anti-interference communication harness according to claim 1, characterized in that, The insulating layer (6) is made of silicone rubber, and the sheath (7) is made of neoprene rubber. The insulating layer (6) is used to fill the annular gap between the shielding layer (5) and the sheath (7).

5. The high-frequency signal anti-interference communication harness according to claim 1, characterized in that, The anti-bending device includes two clamps (10) sleeved on both sides of the connector (8). The two clamps (10) are fixedly connected by bolts. A support plate (11) is fixedly connected to the surface of one clamp (10). A screw (12) is threadedly connected to the surface of the support plate (11). A support frame (14) is rotatably connected to one end of the screw (12). Two rotating shafts (15) are fixedly connected to the surface of the support frame (14). A guard plate (16) is rotatably connected to the arc surface of the rotating shaft (15).

6. The high-frequency signal anti-interference communication harness according to claim 5, characterized in that, The inner wall of the guard plate (16) is fixedly connected with a protective strip (17), which is a rubber strip.

7. The high-frequency signal anti-interference communication harness according to claim 5, characterized in that, Both of the protective plates (16) have a magnetic attractor (18) embedded on the side that is close to each other. The magnetic attractor (18) is a magnet.

8. The high-frequency signal anti-interference communication harness according to claim 5, characterized in that, The surface of the support plate (11) is slidably connected to two guide rods (13), both of which are fixedly connected to the support frame (14).

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