Flexible control cable with spacer shelves

Abstract

The utility model discloses a kind of flexible control electric wires with separating frame bending-resistant, including separating frame, power line core, control line core and signal line core, the separating frame includes annular sleeve and separating plate, the outside of annular sleeve is equidistantly provided with multiple separating plates, annular sleeve and the outside of separating plate are provided with metal foil, the control line core is arranged in annular sleeve, multiple the separating plate separates power line core and signal line core, the power line core and signal line core are arranged at intervals;The separating frame, power line core, control line core and signal line core are coated by wrapping tape, the outside of wrapping tape is coated with first shielding layer.The utility model, separating frame separates wire core physically, metal foil preliminary electromagnetic isolation, first shielding layer and second shielding layer double shielding form multilayer shielding structure, solve the problem that traditional control electric wire shielding is poor, wire core mutual influence, guarantee the stable transmission of power signal and control signal.

Description

Technical Field

[0001] This utility model relates to the field of control wire technology, specifically a flexible control wire with a separator frame for bending resistance. Background Technology

[0002] Control cables are suitable for long-distance operation, furnace control, signal and protection measurement circuits in industrial and mining enterprises, modern high-rise buildings, and other applications. As connecting lines between various electrical instruments and automated instrument devices, they play a crucial role in transmitting various electrical signals and ensuring the safe and reliable operation of the system.

[0003] A flexible water-blocking control cable, disclosed in publication number CN209591602U, includes a sheath and multiple conductors located inside the sheath. Each conductor includes a conductor layer and an insulation layer surrounding the conductor layer. The sheath, from the outside to the inside, includes an outer sheath, a metal sheath layer, a water-blocking layer I, a metal shielding layer, and an isolation layer. A water-blocking layer II is filled between the multiple conductors and the isolation layer. The conductor layer includes a conductor and water-blocking yarn twisted together with the conductor. This design effectively achieves both radial and longitudinal water blocking.

[0004] While existing control wires achieve a certain level of water resistance, their shielding performance is poor, and the wire cores are prone to mutual interference. Therefore, we propose a flexible control wire with a separator frame that is resistant to bending. Utility Model Content

[0005] The purpose of this invention is to provide a flexible control cable with a separator frame that is resistant to bending, in order to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible control cable with a separator frame for bending resistance, comprising a separator frame, a power core, a control core, and a signal core. The separator frame includes an annular sleeve and separator plates. Multiple separator plates are evenly spaced on the outer side of the annular sleeve. Metal foil is provided on the outer side of the annular sleeve and the separator plates. The control core is disposed inside the annular sleeve. The multiple separator plates separate the power core and the signal core, which are spaced apart. The separator frame, power core, control core, and signal core are covered by wrapping tape. A first shielding layer is covered on the outer side of the wrapping tape. A second shielding layer is covered on the outer side of the first shielding layer. An outer sheath is covered on the outer side of the second shielding layer.

[0007] Preferably, the gaps between the wrapping tape and the separator, power core, control core and signal core are filled with flame-retardant filler, and the wrapping tape is made of polyester tape.

[0008] Preferably, the first shielding layer is a tin-plated copper wire braided layer or a copper wire braided layer; the second shielding layer is an aluminum foil layer.

[0009] Preferably, the annular sleeve and the partition plate are an integral structure, and both the annular sleeve and the partition plate are made of thermoplastic elastomer.

[0010] Preferably, the outer sheath is a polyurethane sheath, and the metal foil is aluminum foil or tin-plated copper foil.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The separator physically separates the wire cores, provides initial electromagnetic isolation with metal foil, and forms a multi-layer shielding structure with double shielding from the first and second shielding layers. This solves the problems of poor shielding and mutual interference between wire cores in traditional control wires, ensuring stable transmission of power and control signals.

[0012] The combination of thermoplastic elastomer separators and polyurethane outer sheath, which enhances the bending resistance and flexibility of the wires, along with the integrated structure, allows the wires to adapt to repeated bending and flexible wiring needs, and is less prone to breakage or performance degradation due to bending.

[0013] The combination of stable and safe polyester wrapping tape and flame-retardant filler not only fixes the relative position of the internal wire core and the separator frame, preventing component displacement during use, but also has flame-retardant properties, improving the safety of the wire in high-temperature and open-flame risk scenarios. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the partition frame of this utility model.

[0015] In the diagram: 1. Flame-retardant filler; 2. Power core; 3. Control core; 4. Signal core; 5. Separator; 6. Wrapping tape; 7. First shielding layer; 8. Second shielding layer; 9. Outer sheath; 51. Ring sleeve; 52. Separator plate; 53. Metal foil. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0017] Please see Figure 1-2 In this embodiment of the present invention, a flexible control wire with a separator frame and resistant to bending includes a separator frame 5, a power core 2, a control core 3, and a signal core 4. The separator frame 5 includes an annular sleeve 51 and separator plates 52. Multiple separator plates 52 are evenly spaced on the outer side of the annular sleeve 51. Metal foil 53 is provided on the outer side of the annular sleeve 51 and the separator plates 52. The control core 3 is disposed inside the annular sleeve 51. The multiple separator plates 52 separate the power core 2 and the signal core 4. The power core 2 and the signal core 4 are spaced apart, separating the wires with different functions. The cores are physically partitioned; the control cores are placed separately in an annular sleeve, and the power cores and signal cores are distributed at intervals by a partition plate to avoid direct contact between different cores; at the same time, the metal foil (aluminum foil or tin-plated copper foil) on the outside of the partition frame can form preliminary electromagnetic isolation for each core area, reducing signal crosstalk between cores; the partition frame 5, power core 2, control core 3 and signal core 4 are covered by a wrapping tape 6, the outside of the wrapping tape 6 is covered by a first shielding layer 7, the outside of the first shielding layer 7 is covered by a second shielding layer 8, and the outside of the second shielding layer 8 is covered by an outer sheath 9.

[0018] The gaps between the wrapping tape 6 and the separator frame 5, power core 2, control core 3 and signal core 4 are filled with flame-retardant filler 1. After the wrapping tape is wrapped, the gaps between the core and the separator frame are filled with flame-retardant filler. On the one hand, the filler supports and fixes the position of each component, improving the overall structural stability of the wire. On the other hand, in a fire scenario, the flame-retardant filler can suppress the spread of flames and reduce safety risks. The wrapping tape 6 is made of polyester tape.

[0019] The outer sheath 9 is made of polyurethane, the metal foil 53 is made of aluminum foil or tin-plated copper foil, the first shielding layer 7 is made of tin-plated copper wire braid or copper wire braid, which blocks external electromagnetic radiation interference from entering the wire and reduces the leakage of internal core signals to the outside; the second shielding layer 8 is made of aluminum foil, which makes up for the gaps that may exist in the braided layer, forming a double shielding system of braid and sealing, which further improves the anti-electromagnetic interference capability.

[0020] The annular sleeve 51 and the partition plate 52 are an integral structure, and both the annular sleeve 51 and the partition plate 52 are made of thermoplastic elastomer.

[0021] The working principle of this utility model is as follows: multiple partition plates 52 separate the power core 2 and the signal core 4, and the power core 2 and the signal core 4 are arranged at intervals to physically partition the cores with different functions; the control core is placed separately in the annular sleeve, and the power core and the signal core are distributed at intervals through the partition plates to avoid direct contact between different cores; at the same time, the metal foil (aluminum foil or tinned copper foil) on the outside of the partition frame can form preliminary electromagnetic isolation for each core area, reducing signal crosstalk between cores; the first shielding layer 7 adopts a tinned copper wire braided layer or a copper wire braided layer to block external electromagnetic radiation interference from entering the wire interior, while reducing the leakage of internal core signals to the outside; the second shielding layer 8 adopts an aluminum foil layer to make up for the gaps that may exist in the braided layer, forming a double shielding system of braiding and sealing, further improving the anti-electromagnetic interference capability.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flexible control cable with a separator frame for bending resistance, comprising a separator frame (5), a power core (2), a control core (3), and a signal core (4), characterized in that: The separator (5) includes an annular sleeve (51) and separator plates (52). Multiple separator plates (52) are evenly spaced on the outer side of the annular sleeve (51). Metal foil (53) is provided on the outer side of the annular sleeve (51) and separator plates (52). A control wire core (3) is provided inside the annular sleeve (51). Multiple separator plates (52) separate the power wire core (2) and the signal wire core (4). The power wire core (2) and the signal wire core (4) are spaced apart. The separator (5), power wire core (2), control wire core (3) and signal wire core (4) are covered by a wrapping tape (6). A first shielding layer (7) is covered on the outer side of the wrapping tape (6). A second shielding layer (8) is covered on the outer side of the first shielding layer (7). An outer sheath (9) is covered on the outer side of the second shielding layer (8).

2. The flexible control cable with a separator frame and bend resistance according to claim 1, characterized in that: The gaps between the wrapping tape (6) covering the separator (5), power core (2), control core (3) and signal core (4) are filled with flame-retardant filler (1), and the wrapping tape (6) is made of polyester tape.

3. The flexible control cable with a separator frame and bend resistance according to claim 1, characterized in that: The first shielding layer (7) is made of tin-plated copper wire braid or copper wire braid; the second shielding layer (8) is made of aluminum foil.

4. A flexible control cable with a separator frame and resistant to bending according to claim 1, characterized in that: The annular sleeve (51) and the partition plate (52) are an integral structure, and both the annular sleeve (51) and the partition plate (52) are made of thermoplastic elastomer.

5. A flexible control cable with a separator frame and resistant to bending according to claim 1, characterized in that: The outer sheath (9) is made of polyurethane, and the metal foil (53) is made of aluminum foil or tin-plated copper foil.

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