Flexible large-diameter aluminum alloy core aluminum stranded wire electric welding machine cable
By adopting a multi-layer twisted structure of aluminum alloy inner core conductor layer and aluminum strand outer conductor layer in the welding machine cable, combining rubber isolation and insulating layers, the problem of insufficient flexibility and bending resistance of the welding machine cable is solved, and the problem of improved The durability and safety of the cable are prevented from corrosion of the steel core.
Patent Information
- Application Number
- CN202421143283.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing welding machine cables have poor flexibility and bending resistance in complex working conditions, and are prone to problems such as wire breakage, cable short circuit, and circuit breakage, resulting in poor durability.
Using a combined structure of an aluminum alloy inner core conductor layer and an aluminum strand outer conductor layer, the aluminum alloy monofilament diameter is 0.08mm to 0.12mm, and the outer conductor layer diameter is 0.15mm to 0.3mm, and aluminum twist is formed by multi-layer twisting. Wire and aluminum strands, plus EPDM rubber isolation layer, EVA extruded insulation layer and neoprene sheath enhance the flexibility and bending resistance of the cable.
It improves the flexibility and bending resistance of the cable, reduces the occurrence of wire breakage, ensures stable electrical characteristics, enhances safety, reliability and durability, avoids steel core corrosion, and extends service life.
Smart Images
Figure CN222354783U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cables, and in particular to a soft, thick-diameter aluminum alloy core aluminum stranded wire welding machine cable. Background Art
[0002] As welding cables, electric welding machine cables are used in various wire feeders, gas shielded welding machines, argon arc welding machines, submerged arc welding machines and various auxiliary machines. Due to the complex working environment, the structure must be able to meet complex environmental factors. Electric welding machine cables used in the side wiring of electric welding machines and connecting electric welding clamps are suitable for rated voltage of 220V, the minimum bending radius of the cable is 6 times the cable diameter, and the cable conductor cross-sectional area is usually more than 50mm 2 As mentioned above, the cable conductor has a large cross-section, poor flexibility and bending resistance, and is prone to wire breakage due to bending, movement and release during operation, and may even cause cable short circuits or circuit breaks, resulting in poor durability. Utility Model Content
[0003] The present application aims to solve the technical problem of providing a soft, thick-diameter aluminum alloy core aluminum stranded wire welding machine cable in order to improve the conductor's flexibility and bending resistance, thereby ensuring stable electrical properties, enhancing safety and reliability, and improving durability.
[0004] This application solves the above technical problems through the following technical solutions.
[0005] A soft thick-diameter aluminum alloy core aluminum stranded wire welding machine cable comprises an aluminum alloy inner core conductor layer, wherein the aluminum alloy inner core conductor layer is composed of a plurality of aluminum alloy single wires with a wire diameter of 0.08mm to 0.12mm coaxially twisted, and a plurality of aluminum strands are twisted in two to three layers around the outside of the aluminum alloy inner core conductor layer to form an aluminum strand outer conductor layer, wherein the aluminum strands are composed of a plurality of aluminum strands twisted together, and the aluminum strands are composed of a plurality of aluminum alloy single wires with a wire diameter of 0.15mm to 0.3mm coaxially twisted, and the total cross-sectional area of the aluminum alloy inner core conductor layer and the aluminum strand outer conductor layer is 50mm 2 Up to 185mm 2 The outer conductor layer of the aluminum strand is coated with an EPDM rubber isolation layer, an EVA extruded insulation layer and a chloroprene rubber sheath in sequence, and the outer diameter of the chloroprene rubber sheath is 11 mm to 30 mm.
[0006] Preferably, the aluminum alloy inner core conductor layer and the aluminum strand outer conductor layer have a total cross-sectional area of 70 mm 2 、95mm 2 , 120mm 2 or 150mm 2 .
[0007] Preferably, the lay length of the aluminum stranded wire is 5 to 15 times the outer diameter of the aluminum stranded wire.
[0008] Preferably, the EPDM rubber isolation layer is a multi-layer overlapping and wrapping structure of EPDM rubber tapes with an overlapping rate of 20% to 30%.
[0009] Preferably, the thickness of the chloroprene rubber sheath is 2 mm to 4 mm.
[0010] Preferably, the thickness of the chloroprene rubber sheath is 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm, 3 mm, 3.2 mm or 3.6 mm.
[0011] Preferably, the outer conductor layers of the aluminum strands have the same twisting direction.
[0012] Preferably, the inner surface of the chloroprene rubber sheath is provided with a thermoplastic EVA adhesive layer.
[0013] Preferably, the thermoplastic EVA adhesive layer has a thickness of 0.03 mm to 0.2 mm.
[0014] Preferably, the lay length of the aluminum alloy inner core conductor layer is 4 to 12 times the outer diameter of the aluminum alloy inner core conductor layer.
[0015] Beneficial effects of this application:
[0016] 1. The conductor is composed of an aluminum alloy inner core conductor layer and an aluminum strand outer conductor layer. The optimized aluminum alloy single wire diameter is suitable for a cross-sectional area of 50mm 2 Up to 185mm 2 The conductor has an inner core conductor layer of aluminum alloy single wire with a diameter of 0.08mm to 0.12mm, which is smaller than the outer conductor layer of aluminum alloy single wire with a diameter of 0.15mm to 0.3mm. The inner core conductor layer has better flexibility, and the outer conductor layer has better rigidity and bending resistance, which helps to suppress wire breakage. The aluminum alloy single wires are twisted to form aluminum stranded wire and then twisted to form aluminum strands. The aluminum strands are then twisted in two to three layers to form an aluminum strand outer conductor layer structure with higher structural strength. When the cable is frequently bent and moved, it helps to improve flexibility and bending resistance, suppress wire breakage, ensure stable electrical characteristics, enhance safety and reliability, and have better durability.
[0017] 2. The aluminum alloy inner core conductor layer replaces the original steel core structure to avoid the problem of steel core corrosion, which can better adapt to various corrosive working conditions, improve service life and durability. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of an embodiment of the present application.
[0019] Description of reference numerals:
[0020] 1-Aluminum alloy inner core conductor layer, 2-Aluminum strand outer conductor layer, 3-EPDM rubber isolation layer, 4-EVA extruded insulation layer, 5-Chloroprene rubber sheath. DETAILED DESCRIPTION
[0021] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0022] See also Figure 1 The soft, thick-diameter aluminum alloy core aluminum stranded wire welding machine cable of the embodiment of the present application comprises an aluminum alloy inner core conductor layer 1, wherein the aluminum alloy inner core conductor layer 1 is composed of a plurality of aluminum alloy single wires with a wire diameter of 0.08mm to 0.12mm, which are coaxially twisted. Furthermore, the lay length of the aluminum alloy inner core conductor layer 1 is 4 to 12 times the outer diameter of the aluminum alloy inner core conductor layer 1. A plurality of aluminum strands are twisted in two to three layers around the outside of the aluminum alloy inner core conductor layer 1 to form an aluminum strand outer conductor layer 2, and each layer of the aluminum strand outer conductor layer 2 has the same twisting direction. The aluminum strands are composed of a plurality of aluminum stranded wires twisted together, wherein the aluminum strands are composed of a plurality of aluminum alloy single wires with a wire diameter of 0.15mm to 0.3mm, which are coaxially twisted. Furthermore, the lay length of the aluminum stranded wires is 5 to 15 times the outer diameter of the aluminum stranded wire. The total cross-sectional area of the aluminum alloy inner core conductor layer 1 and the aluminum strand outer conductor layer 2 is 50mm 2 Up to 185mm 2 , further, the cross-sectional area is 70mm 2 、95mm 2 , 120mm 2 or 150mm 2 .
[0023] The outer conductor layer 2 of the aluminum strand is coated with an EPDM rubber isolation layer 3, an EVA extruded insulation layer 4 and a chloroprene rubber sheath 5 in sequence. Further, the inner surface of the chloroprene rubber sheath 5 is provided with a thermoplastic EVA adhesive layer, and the thickness of the thermoplastic EVA adhesive layer is 0.03mm to 0.2mm. The outer diameter of the chloroprene rubber sheath 5 is 11mm to 30mm. In one embodiment, the EPDM rubber isolation layer 3 is a multi-layer overlapping wrapping structure of EPDM rubber tape and the overlapping rate is 20% to 30%. The thickness of the chloroprene rubber sheath 5 is 2mm to 4mm. Further, the thickness of the chloroprene rubber sheath 5 is 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, 3.2mm or 3.6mm.
[0024] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.
Claims
1. Soft thick-diameter aluminum alloy core aluminum stranded wire welding cable, its characteristics are: The invention comprises an aluminum alloy inner core conductor layer (1), wherein the aluminum alloy inner core conductor layer (1) is formed by concentrically twisting a plurality of aluminum alloy single wires with a wire diameter of 0.08 mm to 0.12 mm, and a plurality of aluminum strands are twisted in two to three layers around the outside of the aluminum alloy inner core conductor layer (1) to form an aluminum strand outer conductor layer (2), wherein the aluminum strands are formed by multiple twisting of a plurality of aluminum strands, and the aluminum strands are formed by concentrically twisting a plurality of aluminum alloy single wires with a wire diameter of 0.15 mm to 0.3 mm, and the total cross-sectional area of the aluminum alloy inner core conductor layer (1) and the aluminum strand outer conductor layer (2) is 50 mm 2 Up to 185mm 2 The outer conductor layer (2) of the aluminum strand is coated with an EPDM rubber isolation layer (3), an EVA extruded insulation layer (4) and a chloroprene rubber sheath (5) in sequence, and the outer diameter of the chloroprene rubber sheath (5) is 11 mm to 30 mm.
2. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 1 is characterized by: The total cross-sectional area of the aluminum alloy inner core conductor layer (1) and the aluminum strand outer conductor layer (2) is 70 mm 2 、95mm 2 , 120mm 2 or 150mm 2 .
3. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 1 is characterized by: The lay length of the aluminum stranded wire is 5 to 15 times the outer diameter of the aluminum stranded wire.
4. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 1 is characterized by: The EPDM rubber isolation layer (3) is a multi-layer overlapping and wrapping structure of EPDM rubber belts, and the overlapping rate is 20% to 30%.
5. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 1 is characterized by: The thickness of the chloroprene rubber sheath (5) is 2 mm to 4 mm.
6. The soft thick-diameter aluminum alloy core aluminum stranded wire welding machine cable according to claim 5 is characterized by: The thickness of the chloroprene rubber sheath (5) is 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm, 3 mm, 3.2 mm or 3.6 mm.
7. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 1 is characterized by: The stranding directions of the various layers of the aluminum strand outer conductor layer (2) are the same.
8. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 1 is characterized by: The inner surface of the chloroprene rubber sheath (5) is provided with a thermoplastic EVA adhesive layer.
9. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 7 is characterized by: The thickness of the thermoplastic EVA adhesive layer is 0.03 mm to 0.2 mm.
10. The soft thick-diameter aluminum alloy core aluminum stranded wire welding cable according to claim 1 is characterized by: The lay length of the aluminum alloy inner core conductor layer (1) is 4 to 12 times the outer diameter of the aluminum alloy inner core conductor layer (1).