Eight-core cable capable of improving shielding effect

Abstract

The utility model discloses a shielding effect improved eight-core cable relates to eight-core cable technical field, including bus cable and signal line, the bus cable is equipped with the two signal line, each signal line includes copper conductor, insulating layer, sheath layer and copper wire shielding layer, the copper conductor is intertwisted by a plurality of strands of copper wire, the insulating layer is intertwisted by a plurality of strands of copper wire, and the copper wire shielding layer is intertwisted by a plurality of strands of copper wire. And an insulating layer made of a Teflon material is sleeved outside the copper conductor. According to the eight-core cable capable of improving the shielding effect, the bus cable is composed of the two signal lines and the other six control lines, the requirement for simultaneous transmission of multiple paths of high-frequency signals can be met, independent shielding of the signal lines is achieved through the external copper wire shielding layer, the internal interference resistance is good, and in addition, the shielding effect is improved. The bus cable also improves the external interference resistance of the wire rod through the double-layer shielding arrangement of the braided shielding layer and the aluminum foil shielding layer, the combination of the two effectively improves the internal and external dual signal interference shielding capability of the bus cable, and the applicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of 8-core cables, in particular to an 8-core cable with improved shielding effect. Background Art

[0002] Usually, cables are used to transmit communication signals in a single form. With the rapid development of high technology, the communication field is also undergoing tremendous changes. It is common for the same telecommunication equipment to transmit multiple high-frequency signals at the same time. Using several independent cables for multi-channel signal transmission will make the connection between telecommunication equipment extremely complicated, especially in applications that often require frequent movement. The retraction and extension of several independent cables is very inconvenient.

[0003] The existing multi-core cables lack consideration for the design of 8-core cables. When making 8-core cables, how to ensure the stability and shielding of the cables becomes a technical difficulty.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an 8-core cable with improved shielding effect is proposed. Utility Model Content

[0005] The utility model aims to provide an 8-core cable with improved shielding effect, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an 8-core cable with improved shielding effect, comprising a bus cable and a signal line, wherein the bus cable has two built-in signal lines, and the signal line comprises a copper conductor, an insulating layer, a sheath layer and a copper wire shielding layer, wherein the copper conductor is formed by twisting multiple copper wires, and the outside of the copper conductor is provided with an insulating layer of Teflon material, the outside of the insulating layer is provided with a sheath layer of hot-melt polyester resin material, and the outside of the sheath layer is provided with a copper wire shielding layer woven from copper wires.

[0007] Furthermore, the hot-melt surface of the sheath layer faces inwards, and the sheath layer has a paint spray ring to mark the serial number.

[0008] Furthermore, the bus cable is externally covered with an outer sheath, and the outer sheath is made of a cross-linked halogen-free material layer.

[0009] Furthermore, a braided shielding layer is clamped in the middle of the bus cable, and the braided shielding layer is made of tinned braided copper wire mesh.

[0010] Furthermore, the bus cable is internally sheathed with an aluminum foil shielding layer, with the aluminum surface of the aluminum foil shielding layer facing outwards.

[0011] Furthermore, the bus cable has six built-in control wires, and the control wires and the signal wires have the same structural material.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. When the utility model is in use, the bus cable of the present application is composed of two signal lines and six other control lines, which can meet the simultaneous transmission requirements of multiple high-frequency signals. Among them, the signal lines are independently shielded through the external copper wire shielding layer, and have good anti-interference performance against internal interference. In addition, the bus cable also increases the anti-external interference ability of the wire through the double shielding setting of the braided shielding layer and the aluminum foil shielding layer. The combination of the two effectively improves the ability of the bus cable of the present application to shield double signal interference inside and outside, and has stronger applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the device of the utility model;

[0015] Figure 2 is a schematic side view structure diagram of the whole of the utility model;

[0016] Figure 3 is a schematic diagram of the signal line structure of the utility model.

[0017] In the figure: 1. Bus cable; 2. Outer sheath; 3. Braided shielding layer; 4. Aluminum foil shielding layer; 5. Signal line; 501. Copper conductor; 502. Insulating layer; 503. Sheath layer; 504. Copper wire shielding layer; 6. Control line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes in detail the embodiments of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0019] Such as Figures 1 to 3As shown, an 8-core cable for improving shielding effect includes a bus cable 1 and signal lines 5. There are two signal lines 5 inside the bus cable 1. The signal line 5 includes a copper conductor 501, an insulating layer 502, a sheath layer 503, and a copper wire shielding layer 504. The copper conductor 501 is formed by stranding multiple copper wires. An insulating layer 502 made of Teflon is sleeved outside the copper conductor 501. A sheath layer 503 made of hot-melt polyester resin is sleeved outside the insulating layer 502. And a copper wire shielding layer 504 woven by copper wires is sleeved outside the sheath layer 503. The hot-melt surface of the sheath layer 503 faces inward, and there are paint spray rings on the sheath layer 503 to mark the serial numbers. The bus cable 1 of this application is composed of two signal lines 5 and six other control lines 6, which can meet the simultaneous transmission requirements of multiple high-frequency signals. Among them, the signal line 5 realizes independent shielding through the external copper wire shielding layer 504 and has good anti-internal interference performance. An outer sheath 2 is sleeved outside the bus cable 1, and the outer sheath 2 is made of a cross-linked halogen-free material layer. A braided shielding layer 3 is clamped in the middle of the bus cable 1, and the braided shielding layer 3 is made of a tinned braided copper wire mesh. An aluminum foil shielding layer 4 is sleeved inside the bus cable 1, and the aluminum surface of the aluminum foil shielding layer 4 faces outward. The bus cable 1 also increases the anti-external interference ability of the wire through the double shielding settings of the braided shielding layer and the aluminum foil shielding layer 4. The combination of the two effectively improves the ability of the bus cable 1 of this application to shield double internal and external signal interferences, and has stronger applicability. There are six control lines 6 inside the bus cable 1, and the control lines 6 have the same structural material as the signal lines 5.

[0020] Working principle: When using this 8-core cable for improving shielding effect, the bus cable 1 of this application is composed of two signal lines 5 and six other control lines 6, which can meet the simultaneous transmission requirements of multiple high-frequency signals. Among them, the signal line 5 realizes independent shielding through the external copper wire shielding layer 504 and has good anti-internal interference performance. In addition, the bus cable 1 also increases the anti-external interference ability of the wire through the double shielding settings of the braided shielding layer and the aluminum foil shielding layer 4. The combination of the two effectively improves the ability of the bus cable 1 of this application to shield double internal and external signal interferences, and has stronger applicability.

[0021] The embodiments of the present invention are given for the purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. An 8-core cable for improving shielding effect, characterized in that, It includes a bus cable (1) and signal lines (5). Two signal lines (5) are built in the bus cable (1). The signal line (5) includes a copper conductor (501), an insulating layer (502), a sheath layer (503), and a copper wire shielding layer (504). The copper conductor (501) is formed by stranding multiple copper wires. An insulating layer (502) made of Teflon is sleeved outside the copper conductor (501). A sheath layer (503) made of hot-melt polyester resin is sleeved outside the insulating layer (502). And a copper wire shielding layer (504) woven by copper wires is sleeved outside the sheath layer (503).

2. The 8-core cable for improving shielding effect according to claim 1, characterized in that The sheath layer (503) has its hot-melt side facing inwards, and there are paint spray rings on the sheath layer (503) to mark the serial numbers.

3. An 8-core cable for improving shielding effect according to claim 1, characterized in that, An outer sheath (2) is sleeved outside the bus cable (1), and the outer sheath (2) is made of a cross-linked halogen-free material layer.

4. An 8-core cable for improving shielding effect according to claim 1, characterized in that, A braided shielding layer (3) is clamped in the middle of the bus cable (1), and the braided shielding layer (3) is made of tinned woven copper wire mesh.

5. An 8-core cable for improving shielding effect according to claim 1, characterized in that, An aluminum foil shielding layer (4) is sleeved inside the bus cable (1), and the aluminum side of the aluminum foil shielding layer (4) faces outwards.

6. The 8-core cable for improving shielding effect according to claim 1, characterized in that Six control lines (6) are built in the bus cable (1), and the control lines (6) have the same structure and material as the signal lines (5).

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