High insulation resistance lightweight low smoke zero halogen four-core wire

Abstract

The utility model discloses a high insulation resistance, lightweight, low-smoke, halogen-free four-core electric wire, which relates to the technical field of electric wires, including four conductive cores, the outer surfaces of the four conductive cores are all covered with a skin structure, the skin structure includes a low-smoke, halogen-free sheath, a cutting wire and a cutting opening, the low-smoke, halogen-free sheath is covered on the outer surface of the conductive core, the cutting wire is provided with a cutting opening, and a support structure is installed between the outer surfaces of the four low-smoke, halogen-free sheaths. The utility model divides the four skin structures and the conductive cores by setting a support frame, and at the same time, it is convenient to fix the cable during preparation, and it is convenient to fill the lightweight insulating filling layer. The reinforced inner core is set inside to greatly improve the tension of the entire wire, and the mechanical strength is enhanced. The cutting wire and the cutting opening are set. When the wire is discarded in the later stage, the outer shell layer, the insulation resistance layer and the inner shell layer are peeled off, and the conductive core can be quickly peeled off by pulling out the cutting wire, which greatly improves the recycling efficiency and reduces the operation time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wires, in particular to a high insulation resistance, light weight, low smoke and halogen-free four-core electric wire. Background Art

[0002] The wire and cable industry is an extremely important part of the mechanical and electronic industry. Wires and cables are essential basic components for transmitting electrical energy, information, and manufacturing various electrical appliances and instruments. They are basic products for electrification and informatization. Flame retardant and low-smoke treatment of wire and cable materials has been recognized as an important measure to fundamentally prevent and reduce fires and reduce the loss of life and property.

[0003] The existing patent (Announcement No.: CN206921505U) discloses a four-core electric wire, which relates to the field of electric wire technology. It includes four conductive cores, each of which is provided with a polyvinyl chloride insulation layer on the outside, and also includes a shielding layer that wraps all the conductive cores inside. The outside of the shielding layer is provided with a PVC sheath layer, and the polyvinyl chloride insulation layer includes a spirally wrapped polyvinyl chloride insulation tape. In the process of implementing this solution, the inventor found that the following problems in the prior art have not been well solved: the strength of the wire is limited and depends on the strength of its own conductive core. Excessive pulling force can easily damage the conductive core itself. The wire uses reserved patterns to facilitate pulling out the internal conductive core during later recycling, but the manufacturing process of the reserved patterns is relatively cumbersome and the cost is relatively high. Utility Model Content

[0004] The main purpose of the utility model is to provide a high insulation resistance, lightweight, low smoke and halogen-free four-core electric wire, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high insulation resistance, lightweight, low-smoke, halogen-free four-core electric wire comprises four conductive cores, the outer surfaces of the four conductive cores are covered with a cortical structure, the cortical structure comprises a low-smoke, halogen-free sheath, a cutting wire and a cutting opening, the low-smoke, halogen-free sheath is covered on the outer surface of the conductive core, the cutting wire is provided with a cutting opening, support structures are installed between the outer surfaces of the four low-smoke, halogen-free sheaths, and reinforced inner cores are installed inside the four support structures.

[0007] Preferably, one end of the cutting wire away from the cutting opening overlaps the outer surface of the conductive wire core.

[0008] Preferably, the support mechanism includes a support frame, an inner curved surface and an outer curved surface. Four support frames are sequentially pasted and assembled and installed on the outer surface of the reinforced inner core. The support frame has an inner curved surface on the side close to the reinforced inner core, and the support frame has an outer curved surface on the side away from the reinforced inner core.

[0009] Preferably, the inner curved surface corresponds to and matches the outer surface of the reinforced inner core, and the outer curved surface matches the outer surface of the low-smoke zero-halogen covering.

[0010] Preferably, the outer surfaces of the four low-smoke zero-halogen coverings are sleeved with an inner shell layer, the outer surface of the inner shell layer is covered with an insulating resistance layer, and the outer surface of the insulating resistance layer is covered with an outer shell layer.

[0011] Preferably, the inner cavity of the inner shell layer is filled with a lightweight insulating filling layer.

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

[0013] 1. The support frame is set to divide the four cortical structures and the conductive core. At the same time, it is convenient to fix the cables during preparation and fill the lightweight insulating filling layer. The reinforced inner core is set inside to greatly improve the tension of the entire wire and enhance the mechanical strength.

[0014] 2. By setting the cutting wire and cutting port, when the wires are discarded in the later stage, the outer shell layer, insulation resistance layer and inner shell layer can be peeled off, and the conductive wire core can be quickly peeled off by pulling out the cutting wire, which greatly improves the recycling efficiency and reduces the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model's high insulation resistance, lightweight, low-smoke, halogen-free four-core electric wire;

[0016] Figure 2 It is a schematic cross-sectional view of the utility model of a high insulation resistance, lightweight, low smoke, halogen-free four-core electric wire;

[0017] Figure 3 It is a three-dimensional structural diagram of the cortical structure of the utility model of a high insulation resistance, lightweight, low smoke, halogen-free four-core electric wire;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the utility model of a high insulation resistance, lightweight, low smoke and halogen-free four-core electric wire support mechanism.

[0019] In the figure: 1. outer shell layer; 2. insulation resistance layer; 3. inner shell layer; 4. reinforced inner core; 5. supporting mechanism; 51. supporting frame; 52. inner arc surface; 53. outer arc surface; 6. conductive core; 7. skin structure; 71. low smoke zero halogen covering; 72. cutting wire; 73. cutting mouth; 8. lightweight insulating filling layer. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-4 As shown, a high insulation resistance lightweight low-smoke halogen-free four-core electric wire comprises four conductive cores 6. The outer surfaces of the four conductive cores 6 are all covered with a cortical structure 7. The cortical structure 7 comprises a low-smoke halogen-free sheath 71, a cutting wire 72 and a cutting opening 73. The low-smoke halogen-free sheath 71 is covered on the outer surface of the conductive core 6. The cutting wire 72 is provided with a cutting opening 73. Support mechanisms 5 are installed between the outer surfaces of the four low-smoke halogen-free sheaths 71. Reinforced inner cores 4 are installed inside the four support mechanisms 5.

[0022] In this embodiment, one end of the cutting wire 72 away from the cutting port 73 overlaps with the outer surface of the conductive core 6; the supporting mechanism 5 includes a supporting frame 51, an inner arc surface 52 and an outer arc surface 53, and the four supporting frames 51 are sequentially pasted and assembled and installed on the outer surface of the reinforced inner core 4. The inner arc surface 52 is provided on the surface of the support frame 51 on the side close to the reinforced inner core 4, and the outer arc surface 53 is provided on the surface of the support frame 51 on the side away from the reinforced inner core 4; the inner arc surface 52 corresponds to and fits with the outer surface of the reinforced inner core 4, and the outer arc surface 53 fits with the outer surface of the low-smoke halogen-free covering 71.

[0023] Specifically, the support frame 51 is provided to divide the four cortical structures 7 and the conductive core 6. At the same time, the preparation is convenient for fixing the cables and filling the lightweight insulating filling layer 8. The reinforced inner core 4 is provided inside to greatly improve the tension of the entire wire and enhance the mechanical strength.

[0024] In this embodiment, the outer surfaces of the four low-smoke halogen-free coverings 71 are sleeved with an inner shell layer 3, the outer surface of the inner shell layer 3 is covered with an insulating resistance layer 2, and the outer surface of the insulating resistance layer 2 is covered with an outer shell layer 1; the inner cavity of the inner shell layer 3 is filled with a lightweight insulating filling layer 8.

[0025] Specifically, by providing the cutting wire 72 and the cutting opening 73, when the electric wire is discarded at a later stage, the outer shell layer 1, the insulating resistance layer 2 and the inner shell layer 3 are peeled off, and the conductive core 6 can be quickly peeled off by pulling out the cutting wire 72, thereby greatly improving the recycling efficiency and reducing the operation time.

[0026] Working principle: In the utility model, the outer shell layer 1 is a low-smoke halogen-free insulating sheath, the inner shell layer 3 is an XLPE high insulation resistance layer, and the inner shell layer 3 is a lightweight silicon micropowder mixed rubber filling layer. The silicon micropowder is processed by a suspended calcination, grading and sorting process, and has good corrosion resistance, good insulation, strong electrical insulation performance, high activity, and scratch resistance. As a filler, it is lighter than the same type of powder; by setting a support frame 51 to divide the four cortical structures 7 and the conductive core 6, at the same time, it is convenient to fix the cable during preparation and convenient to fill the lightweight insulating filling layer 8. The internal strengthening core 4 can greatly improve the tension of the entire wire and enhance the mechanical strength; by setting a cutting wire 72 and a cutting port 73, when the wire is discarded in the later stage, the outer shell layer 1, the insulating resistance layer 2 and the inner shell layer 3 are peeled off, and the conductive core 6 can be quickly peeled off by pulling out the cutting wire 72, which greatly improves the recycling efficiency and reduces the operation time.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high insulation resistance, light weight, low smoke, halogen-free four-core electric wire, comprising four conductive cores (6), characterized in that: The outer surfaces of the four conductive cores (6) are all covered with a skin structure (7), the skin structure (7) comprising a low-smoke halogen-free sheath (71), a cutting wire (72) and a cutting opening (73), the low-smoke halogen-free sheath (71) is covered on the outer surface of the conductive core (6), the cutting wire (72) is provided with a cutting opening (73), a support structure (5) is installed between the outer surfaces of the four low-smoke halogen-free sheaths (71), and a reinforcing inner core (4) is installed inside the four support structures (5).

2. The high insulation resistance, lightweight, low smoke, halogen-free four-core electric wire according to claim 1, characterized in that: One end of the cutting wire (72) away from the cutting opening (73) overlaps the outer surface of the conductive wire core (6).

3. The high insulation resistance, lightweight, low smoke, halogen-free four-core electric wire according to claim 1, characterized in that: The support mechanism (5) comprises a support frame (51), an inner curved surface (52) and an outer curved surface (53); four support frames (51) are sequentially pasted and assembled on the outer surface of the reinforced inner core (4); the inner curved surface (52) is provided on the surface of the support frame (51) on the side close to the reinforced inner core (4); and the outer curved surface (53) is provided on the surface of the support frame (51) on the side away from the reinforced inner core (4).

4. The high insulation resistance, lightweight, low smoke, halogen-free four-core electric wire according to claim 3, characterized in that: The inner arc surface (52) corresponds to and matches the outer surface of the reinforced inner core (4), and the outer arc surface (53) matches the outer surface of the low-smoke zero-halogen covering (71).

5. The high insulation resistance, lightweight, low smoke, halogen-free four-core electric wire according to claim 1, characterized in that: The outer surfaces of the four low-smoke zero-halogen coverings (71) are sleeved with an inner shell layer (3), the outer surface of the inner shell layer (3) is covered with an insulating resistance layer (2), and the outer surface of the insulating resistance layer (2) is covered with an outer shell layer (1).

6. The high insulation resistance, lightweight, low smoke, halogen-free four-core electric wire according to claim 5, characterized in that: The inner cavity of the inner shell layer (3) is filled with a lightweight insulating filling layer (8).

Images