TWM628549U - Control cable structure with high reliability - Google Patents

Abstract

The present invention is a high-reliability control cable structure, which at least includes: a plurality of core wires, a first insulating layer, a second insulating layer, a plurality of spinning fillers, a braided layer and a sheath, wherein each core wire is There is at least one wire for transmitting electric power or electrical signal, the first and second insulating layers are used to cover the core wires, and the second insulating layer is arranged on the inner side of the first insulating layer, the plurality of Spinning fillers are arranged around the core wires, and together with the core wires are covered by the second insulating layer to support and fix the relative positions of the core wires. The braided layer is covered on the outside of the insulating layers for use To shield and isolate the external electromagnetic field, the sheath is covered on the outside of the braid to protect the inside of the sheath, thereby maintaining the roundness of the control cable structure and improving the insulation effect.

Description

High reliability control cable structure

This work is about a high-reliability control cable structure, especially a control cable structure with high withstand voltage and insulation.

With the development of science and technology, various power electronics and other facilities and equipment have become more and more popular, and wires and cables are correspondingly distributed between equipment and equipment to connect to transmit electricity (electric energy) or electrical signals.

According to the purpose of use, the wire and cable can be roughly divided into three categories: power cable, power cable and control cable. Among them, the power cable is used in the main line of the power system and is mainly used to transmit power with a voltage of 1~500KV or above. and distribution of electric energy; the power cable is used in the power supply system as the main line of the three-phase industrial power or civil power supply to transmit and distribute electric power; the control cable is mainly used for control circuits with voltages of 450~750V or below, The protection circuit is used to transmit various control signals.

Please refer to Figure 1. The existing general control cable C has a plurality of core wires W, and the number of core wires W can be from 2 cores to 61 cores or even more according to the needs of use. The core wire W is equipped with wires for transmission For the control signal, the core wires W are jointly wrapped in an insulating layer I, the insulating layer I is usually an aluminum-plastic composite tape (also known as aluminum foil Mylar (AL/mylar)), and the outer side of the insulating layer I is covered with Covered with a braided layer B, the braided layer B is braided by metal such as copper wire or steel wire to shield and isolate the external In order to avoid the electromagnetic interference of the external part, the outer layer of the braid B is covered with a sheath J, which can also be called an outer sheath, which is used to protect the inside of the sheath J and improve the insulation and compressive strength.

However, in the process of wiring and setting the control cable C, it is inevitable that the control cable C needs to be pulled or bent. After such pulling and bending, the insulating layer I and the braided layer in the control cable C will be damaged. B is stretched and deformed, and the core wires W will be displaced in the insulating layer I (as shown in Figure 1), so that the roundness of the control cable C will be deviated, and the control cable C cannot be maintained when it is stressed. The original circular shape (not shown in the figure) makes the insulating layer I easy to expand and deform again to cause damage, and there is a risk of grounding short circuit between the braided layer B and the core wires W.

Therefore, how to solve the above problems and provide a reliable control cable structure that can keep the relative positions of the core wires so as to maintain their true roundness and not be damaged and short-circuited is what the creator of this creation is eager to research and improve. where the direction is.

Therefore, in view of the above deficiencies, the creator of this creation has collected relevant information, evaluated and considered from various parties, and based on years of experience accumulated in this industry, through continuous trials and revisions, before designing this new type of patent.

The main purpose of this creation is to provide a high-reliability control cable structure, which uses a plurality of insulating spinning fillers, arranged around a plurality of core wires, and covered with a first insulating layer and a second insulating layer The core wires and the spinning fillers are used to maintain the relative positions of the core wires, maintain their roundness and improve the insulation effect, thereby providing a high-reliability control cable.

In order to achieve the above-mentioned purpose, the present invention provides a high-reliability control cable structure, which at least includes: a plurality of core wires, each of which is provided with at least one wire for transmitting electric power or electrical signals; a first insulating layer for covering the core wires; a second insulating layer for covering the core wires inside the first insulating layer; a plurality of spinning fillers, etc. Spinning filler is an insulating material, and is arranged around the core wires, and is covered with the core wires in the insulating layers; a braided layer is covered on the outside of the insulating layers to shield and isolate an electromagnetic field; and, a sheath covering the outer side of the braided layer to protect the interior of the sheathing layer.

According to the aforementioned main features, wherein the second insulating layer is a Teflon film (PTFE TAPE) or a polyimide film (KAPTON TAPE).

According to the aforementioned main features, the spinning filler is made of nylon or polyester fiber.

[Prior Art]

B: braided layer

C: General control cable

I: insulating layer

J: Sheath

W: core wire

[This creation]

10: Core wire

20: The first insulating layer

30: Second insulating layer

40: Spinning filler

50: Braid

60: Sheath

Figure 1 is a schematic cross-sectional structure diagram of a conventional control cable;

Figure 2 is a schematic cross-sectional structure diagram of a high-reliability control cable structure created for this purpose.

In order to achieve the above or other purposes and effects, the technical means and structures used in this creation are hereby described in detail with regard to the preferred embodiment of this creation, and its features and functions are as follows, so that you can fully understand.

Please refer to FIG. 2. FIG. 2 is a schematic cross-sectional structure diagram of a high-reliability control cable structure created by the present invention.

As shown in these figures, the present invention provides a high-reliability control cable structure, which at least includes: a plurality of core wires 10, a first insulating layer 20, a second insulating layer 30, a plurality of spinning fillers 40, A braided layer 50 and a sheath 60, wherein each core wire 10 has at least one conductor The wire is used to transmit power or electrical signal. The first insulating layer 20 is used to cover the core wires 10. The second insulating layer 30 is arranged inside the first insulating layer 10 and used to cover the core wires 10. The core wires 10, strengthen the insulation effect, the plurality of spinning fillers 40 are arranged around the core wires 10, and are covered by the second insulating layer 30 together with the core wires 10 to support and fix the core wires 10. Relatively, the braided layer 50 is braided with metal and is covered on the outside of the insulating layers 20 and 30 to shield and isolate the electromagnetic field and reduce external electromagnetic interference. The sheath 60 is covered on the outside of the braided layer 50 (As shown in Fig. 2), the inside of the sheath 60 is protected, so as to maintain the roundness of the control cable structure and improve its insulation effect.

More specifically, the plurality of spinning fillers 40 are soft insulating materials. In the preferred embodiment of the present invention, the spinning fillers 40 are made of nylon or polyester fiber materials. When the yarn filler 40 is arranged around the core wires 10, and is co-wrapped in the first and second insulating layers 20, 30, its cross-section is a circle. During the wiring arrangement of the control cable structure , even if the user arbitrarily pulls or bends the control cable structure, because the core wires 10 have been supported by a plurality of spinning fillers 40 to fix their relative positions (as shown in Figure 2), the roundness of the control cable structure is not As a result, deviations will occur, and there is no risk of breakage and damage.

And preferably, the first insulating layer 20 is made of aluminum-plastic composite tape (AL/mylar), the second insulating layer 30 is made of Teflon film (PTFE TAPE) or polyimide film (KAPTON TAPE), Because the insulating layers 20 and 30 are relatively disposed between the core wires 10 and the braided layer 40, when the first insulating layer 20 is damaged due to long-term use or other reasons, the second insulating layer 30 is still used. In order to isolate the core wires 10 from the braided layer 40 , there is no possibility of short circuit between the core wires 10 and the braided layer 40 .

In addition, the sheath 60 is mainly made of insulating material for protection, but the sheath 60 Insulation materials with characteristics such as compression resistance, tensile strength, oil resistance, flex resistance, corrosion resistance, heat resistance, flame resistance and/or biological protection can be used according to the required operating environment of the wiring, which are described here.

However, the above descriptions are only the preferred embodiments of this creation, and therefore limit the scope of the patent of this creation. Therefore, any simple modifications and equivalent structural changes made by using the contents of the description and drawings of this creation shall be the same. The reasoning is included in the scope of the patent of this creation, and it is hereby stated.

10: Core wire

20: The first insulating layer

30: Second insulating layer

40: Spinning filler

50: Braid

60: Sheath

Claims (3)

A high-reliability control cable structure, comprising at least: A plurality of core wires, each of which is provided with at least one wire for transmitting electricity or electrical signals; a first insulating layer for covering the core wires; A second insulating layer is arranged inside the first insulating layer and covers the core wires; A plurality of spinning fillers, which are insulating materials, are arranged around the core wires, and are covered with the core wires in the insulating layers; a braided layer covering the outside of the insulating layers for shielding and isolating the electromagnetic field; and, A sheath covers the outside of the braided layer to protect the inside of the sheath layer. The high-reliability control cable structure as described in claim 1, wherein the second insulating layer is a Teflon film (PTFE TAPE) or a polyimide film (KAPTON TAPE). The high-reliability control cable structure as described in claim 1, wherein the spinning filler is made of nylon or polyester fiber.

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