CN201340747Y - Numerical and control signal reconnecting cable for high-speed train - Google Patents

Abstract

The utility model relates to a numerical and control signal reconnecting cable for high-speed train, which is used for connection and transmission of control signal and numerical signal among high-speed train bodies. The numerical and control signal reconnecting cable comprises an outer protective sleeve, a first isolating layer, an isolated cable core, a pair twisted shielding cable core group and a center filling hemp rope; the particular connecting relations are: the cable center is the filling hemp rope which is used as a filling and reinforcing and tensile system of the cable, and four pairs of the twisted shielding cable core groups for transmitting numerical signal are uniformly distributed outside the filling hemp rope, 23 non-shielding isolated cable cores are distributed outside the four pairs of the twisted shielding cable core groups, the gap of the isolated cable core is filled by the hemp ropes, the first isolating layer are arranged outside the 23 non-shielding isolated cable cores, and the outside of the first isolating layer is provided with the outer protective sleeve of the whole cable. The long-time safe working temperature of the cable is 125 DEG.C, the field lowest working temperature is below 40 DEG.C; the reconnecting cable has the characteristics of anti-vibration and bunchy C anti-flaming, can prevent a problem that the cable core is broken in long-time vibration, thereby greatly enhancing the stability of signal transmission.

Description

Bullet train reconnects cable with numeral and control signal

Technical field

The utility model cable is specifically related to a kind of bullet train and reconnects cable with numeral and control signal.Be used for the car body of bullet train and the transmission field of control between the car body and digital signal.

Background technology

In the motor train unit of China's introduction of foreign technology production in 2006, because this type of train connects the cable that the cable of car body control and digital data transmission adopts external import always, price is more expensive, procurement cycle is long, safeguard inconvenience, be the production domesticization degree and the minimizing cost that improve homemade bullet train parts, the bullet train of having developed 31 cores reconnects cable with control and digital signal.

The utility model content

The utility model provides a kind of bullet train private cable at above situation---and bullet train reconnects cable with numeral and control signal, and the conductor that this cable is used for transmission of digital and control signal all has the steel wire of 3 0.32mm; The insulating barrier of transmission of digital signals is thicker, and the control core is arranged in 4 pairs of group insulated wire cores outsides uniformly, and first separator is wrapped with the halogen-free flameproof band, and second separator is that polyester belt is wrapped.Make the anti-vibration and the fire resistance of whole cable satisfy the requirement that on bullet train, moves.

The utility model is to realize by following technical scheme, comprise: oversheath, first separator, non-shielding insulation core, screen unit is to the group insulated wire cores, fill the rope made of hemp, its concrete annexation is: cable center is for filling the rope made of hemp, this fills the center of the rope made of hemp as cable, its outer insulated wire cores that is uniform-distribution with 4 pairs of groups, 23 eradication edge cores are distributing outside 4 pairs the insulated wire cores group, pair twist shielding core, fill with the rope made of hemp in space between shielding core group and the non-shielding insulation core, be first separator then, outmost is the oversheath of whole cable.

Non-shielding insulation core comprises: strengthen the stranded steel wire in twining package tape, insulating barrier, stranded conductor, the conductor, shielding insulation core group comprises: the stranded steel wire in inner sheath, screen, second separator, the rope made of hemp, reinforcement twining package tape, insulating barrier, stranded conductor, the conductor, 4 centres of thoroughly doing away with edge core group are that the rope made of hemp is filled, and there is insulating barrier each core conductor outside.

What first separator adopted is wrapped halogen-free flameproof band.

Insulated wire cores is mainly as the carrier of control signal and digital data transmission; The stranded steel core of conductor, filling core, promptly the anti-breaking core of cable plays the main element of strengthening the conductor tension and rocking, and its lay configuration is in order to realize softness and flexible; First separator is as general auxiliary element, and playing insulated wire cores can be each other with the slide relative between oversheath, and second separator plays the effect of the slide relative that keeps the data core as general auxiliary element.In bending, to eliminate stress, prevent unbalanced stress and local disconnected core phenomenon occurs.The rope made of hemp plays the effect that keeps the cable roundness as the auxiliary element of cable, strengthens the mechanical performance that twining package tape plays increases single insulated wire cores, and screen plays the effect that armoured magnetic field disturbs.

The long-term permission working temperature of the utility model cable is 125 ℃, and outdoor minimum operating temperature is-40 ℃; Have anti-ozone, ultraviolet ray and moisture resistance are wet, the oil resistant characteristic; Has bunchy C class flame-retarding characteristic; Have anti-vibration, tensile characteristics, can avoid train in service at a high speed, prevent rocking of cable and cause the cable core that break, make the transmission interruption of signal.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified:

Fig. 1 is the utility model 31 core construction of cable schematic diagrames

Embodiment

As shown in Figure 1, the utility model comprises: oversheath 1, first separator 2, non-shielding insulation core 3, shielding is to insulation group core 4, its concrete annexation is: cable center is for filling the rope made of hemp 6, this fills 6 fill systems as cable, its outer shielding insulation core group 4 that is uniform-distribution with 4 pairs of groups, distributing 23 non-shielding insulation core of shielding insulation core group 4 outsides of 4 pairs of groups, pair twist shielding core, fill with the rope made of hemp in space between shielding core group and the non-shielding insulation core, be first separator then, outmost is the oversheath of whole cable.

Non-shielding insulation core comprises: strengthen the stranded steel wire in twining package tape, insulating barrier, stranded conductor, the conductor, shielding insulation core group comprises: the stranded steel wire in inner sheath, screen, second separator, the rope made of hemp, reinforcement twining package tape, insulating barrier, stranded conductor, the conductor, 4 centres of thoroughly doing away with edge core group are that the rope made of hemp is filled, and there is insulating barrier each core conductor outside.

What first separator adopted is wrapped halogen-free flameproof band.

Below be example with the utility model 31 core cables, describe, specific as follows:

Comprise: oversheath 1, first separator 2, non-shielding insulation core 3, pair twist shielding insulation core group 4, the filling rope made of hemp 6, non-shielding insulation core 3 comprises: the stranded steel core 13 of strengthening twining package tape 8, insulating barrier 9, stranded conductor 10, conductor interior 10; Pair twist shielding insulation core group 4 comprises: the stranded steel wire 13 in inner sheath 7, screen 11, second separator 12, the rope made of hemp 6, reinforcement twining package tape 8, insulating barrier 9, stranded conductor 10, the stranded conductor 10,4 centres of thoroughly doing away with edge core group 4 are that the rope made of hemp 6 is filled, and there is insulating barrier 9 each core conductor 10 outside.

The core conductor, 2mm ²The employing diameter be that the zinc-plated annealed copper skein silk of 0.26mm closes and forms 1.25mm ²Then adopt the zinc-plated annealed copper silk of 0.18mm, it is the stranded steel wire of 0.32mm that there are 3 diameters at its center, and the performance of copper conductor meets GB/T 3956 standards; Insulating barrier adopts the low smoke and zero halogen material, and performance meets the regulation of Nan Yang, Shanghai electricity material technical protocol 150-2007,2mm ²The thickness of insulating barrier is 0.70～0.75mm, 1.25mm ²The thickness of insulating barrier is 1.05～1.10mm.The thickness of strengthening band is 0.1mm, woven shield tinned wird filament diameter is 0.15mm, count is not less than 80%, the first separator and adopts wrapped thickness to be about the halogen-free flameproof band of 0.2mm, and second separator adopts wrapped thickness to be about the polyester film of 0.025mm; Restrictive coating adopts low-smoke halide-free fireproof composite polyolefine material, and thickness is 2.5～2.8mm, and performance meets the regulation of Nan Yang, Shanghai electricity material technical protocol 150-2007.

Except that above-mentioned execution mode, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.

Claims (3)

1, a kind of bullet train reconnects cable with numeral and control signal, comprise: oversheath (1), first separator (2), insulated wire cores (3,4) is characterized in that also comprising: insulated wire cores group (4) is thoroughly done away with edge core (5) for inner sheath (7), screen (11), 2 are arranged; Its annexation is: cable center is that the rope made of hemp is filled (6), its outer insulated wire cores group (4) that is uniform-distribution with 4 unit, 4 unit insulated wire cores groups (4) outside is 23 eradication edge cores (3), fill with the rope made of hemp (6) gap between insulated wire cores (3) and insulated wire cores group (4) and the insulated wire cores (5), 23 single insulated wire cores outsides are provided with first separator (2), and first separator outside is the oversheath (1) of whole cable.

2, bullet train according to claim 1 reconnects cable with numeral and control signal, it is characterized in that: insulated wire cores (3) comprising: strengthen twining package tape (8), insulating barrier (9), stranded conductor (10), stranded steel wire (13) in the stranded conductor (10), insulated wire cores group (5) comprising: inner sheath (7), screen (11), second separator (12), strengthen twining package tape (8), insulating barrier (9), stranded conductor (10), stranded steel wire (13) in the stranded conductor (10), the rope made of hemp (6), four centres of thoroughly doing away with edge core group (4) are that the rope made of hemp (6) is filled, and there is insulating barrier (8) each core conductor outside.

3, bullet train according to claim 1 reconnects cable with numeral and control signal, it is characterized in that, what first separator (2) adopted is wrapped halogen-free flameproof band, and second separator (12) is a polyester belt.

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