A thin-walled cable for smart energy EMUs and its production process
A technology of smart energy and production process, applied in insulated cables, bendable cables, cable/conductor manufacturing, etc., can solve the problems of insufficiency of processing technology, limited space in the car, high-precision cable production, etc., to achieve superior performance, Improved roundness and small cable outer diameter
Active Publication Date: 2016-12-07
FAR EAST CABLE +2
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Problems solved by technology
[0002] In recent years, the EMU technology has developed rapidly, and the internal equipment of the locomotive has become more and more complex, so the demand for cables has increased. However, the space in the car is very limited, and the outer diameter of the cable is required to be small and the structure is compact. However, the traditional processing technology cannot meet high precision. The production of cables, so it is necessary to improve the structure and processing technology of cables
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Embodiment 1
[0028] See figure 1 , a thin-walled cable for smart energy EMUs in this embodiment, from the inside to the outside is the cable core, the second polyester tape 3, the second copper wire shielding layer 4, the third polyester tape 5 and the thin-walled sheath Cover 6; the cable core includes seven wire cores 1 and six bundles of side gap filling cotton ropes 2 filled between the wire cores 1 and the second polyester tape 3; each wire core 1 includes two insulated wires from the inside to the outside Core 11, inner sheath 12, first copper wire shielding layer 13 and first polyester tape 14; insulated wire core 11 is conductor 11-1 and thin-walled insulation 11-2 from inside to outside; each bundle of side gaps is filled with cotton The number of cotton ropes in rope 2 is determined according to the formula: S=1.263D 2 / 0.7854×6d 2 , D is the outer diameter of the core 1, and d is the outer diameter of the cotton thread. The cross-sectional area of conductor 11-1 is 0.5mm 2...
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Abstract
The invention discloses a thin-wall cable used for a smart energy motor train unit and a production technology thereof. The cable comprises a cable core, a second polyester tape, a second copper wire shielding layer, a third polyester tape and a thin-wall sheath which are arranged from inside to outside in turn. The cable core comprises seven wire cores and six bundles of edge gap filling cotton ropes which are filled between the wire cores and the second polyester tape. Each wire core comprises two insulating wire cores, an internal sheath, a first copper wire shielding layer and a first polyester tape which are arranged from inside to outside. Each insulating wire core comprises conductors and thin-wall insulation which are arranged from inside to outside. The number of the cotton ropes in each bundle of edge gap filling cotton ropes is confirmed according to the formula: S=1.263D2 / (0.7854x6d2), D is the external diameter of the wire core, and d is the external diameter of the cotton wire. The cable is compact in structure, complete in appearance, small in cable external diameter, high in flexibility and excellent in performance.
Description
technical field [0001] The invention relates to the field of locomotive cables, in particular to a thin-walled cable for smart energy EMUs and a production process thereof. Background technique [0002] In recent years, the EMU technology has developed rapidly, and the internal equipment of the locomotive has become more and more complex, so the demand for cables has increased. However, the space in the car is very limited, and the outer diameter of the cable is required to be small and the structure is compact. However, the traditional processing technology cannot meet high precision. Therefore, it is necessary to improve the structure and processing technology of cables. Thin-walled cables for EMUs are used for the internal connection of EMUs. The laying space is narrow, and the roundness, outer diameter and softness of the cables are highly required. In order to reduce the outer diameter of the cable, it can only be realized by reducing the outer diameter of the conducto...
Claims
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IPC IPC(8): H01B7/17H01B7/04H01B7/18H01B5/08H01B13/02H01B13/22H01B13/06
Inventor 陈兴武王桢桢盛金伟林雷
Owner FAR EAST CABLE