CN201117359Y - Shielding cable for engineering equipment - Google Patents

Abstract

The utility model discloses a shielding cable used in engineering equipment, comprising a plurality of leads, a shielding layer, a paper belting and a serving. The lead comprises a conductor and an insulation layer coated the conductor, and wherein the lead comprises a signal line (at least one) and a power supply line. The signal line also comprises an inner copper wire mesh braid which is braided on the periphery of the insulation layer. The signal line and the power supply line are intertwisted into a cable core. The cable core is coated by a shielding layer. The shielding layer is coated by a paper belting. The paper belting is coated by the serving, and the serving is thermoplastic vulcanite. The lead is made up by the signal line and power supply line, which makes a cable transmit both information signal and power supply signal. The cable saves cost and is convenient to be operated. The copper wire mesh braid can effectively shield interference, and the shielding layer, the paper belting and serving can further shield interference, which improves the service performance of the equipment. The serving is low-smoke and halogen-free, which is good for environment protection. The serving is also anti-ultraviolet and cold resistant. The cable of the utility model is suitable for the engineering equipment in outdoor rough environment.

Description

Shielded cable for engineering apparatus

Technical field

The utility model relates to a kind of engineering equipment cable, relates in particular to a kind of shielded cable for engineering apparatus.

Background technology

Electric wire has been widely used in the detection of industrial production, communications and transportation, architectural engineering and facility, modern agriculture and scientific research, engineer equipment or military installations, space, ocean at present, and has reached ubiquitous state.Along with socioeconomic activity description is carried out the development of step great-jump-forward from the degree of depth to the range, the electric wire kind is brought in constant renewal in and is perfect, and output continues to increase.For example, building the high-intelligentization building needs for hundreds of, thousands of computer network cable that electronic computer divides cascade network to use; Build the public cable television network in city, the whole city and even all banks of the whole nation banking procedure where deposits and withdrawals are processed at any branch bank, carry out online economic interaction and information interchange etc. and must install the broad band cable net that high reliability transport is used; Realize that the emission of military artillery or antiaircraft artillery group remote control procedure need design the control cable that is fit to field extreme environment.

The application of electric wire mainly is divided into three major types: electric power system, the information transmission system and engineering equipment and instrument and meter system.The electric wire product that electric power system adopts mainly contains built on stilts bare wire, bus-bar (bus), power cable, rubber cover cable, aerial insulated cable), branch cable (replacing the part bus), electromagnetic wire and power equipment be with the electrical equipment electric wire etc.The electric wire that is used for the information transmission system mainly contains local cable, camera cable, electronic cable, radio frequency cable, fiber optic cable, data cable, electromagnetic wire, power communication or other composite cables etc.In engineering equipment, the instrument and meter system except that built on stilts bare wire almost other all products application is all arranged, but mainly be power cable, electromagnetic wire, data cable, instrument and meter cable etc.

In the engineering equipment with intelligent engineering equipment, not only need to use the cable transmission power supply signal, also need information signal with the instruction of cable transport tape, so engineering equipment all has high requirements for the real-time and the accuracy of power supply signal and information signal, in order to improve equipment performance, needing to external world, electric field, the next interference in magnetic field shield.In addition, engineering equipment reaches the workshop usually in the open air with cable and uses, and operational environment very severe, variations in temperature difference are subjected to ultraviolet irradiation greatly and directly, so cable is very easily aging and damaged, thereby causes equipment fault.Simultaneously, the serving of existing conventional cable causes environmental pollution in case aging breakage can produce halogen etc. usually.At present common cable can not satisfy simultaneously that shield effectiveness is good, the engineering equipment of uvioresistant, anti-aging and environmental protection is with several essential conditions of cable.

Therefore, demand providing that a kind of shield effectiveness is good urgently, uvioresistant, anti-aging and environmental protection, and the cable that holding wire and power line twist together is overcome above defective.

The utility model content

The purpose of this utility model is to provide a kind of improved shielded cable for engineering apparatus, described cable shield is effective, uvioresistant, anti-aging and environmental protection, and holding wire and power line twisted together, and can satisfy and be operated in the open-air required harsh conditions of engineering equipment.

For achieving the above object, the technical solution of the utility model is: a kind of shielded cable for engineering apparatus is provided, comprise some leads, screen, paper bag band and serving, described lead comprises conductor and coats the insulating barrier of described conductor, wherein said lead comprises holding wire and power line, at least one of described holding wire, described holding wire also comprises interior copper wire mesh braided layer, copper wire mesh braided layer is woven in the insulating barrier periphery of described holding wire in described, described holding wire and power line are twisted into the cable cable core, described screen coats described cable cable core, described paper bag band coats described screen, the described serving described paper bag band that is covered, and described serving is a Thermoplastic Vulcanizate.

In an embodiment of the present utility model, described screen is the double-level-metal screen.Preferable, described screen comprises aluminium foil lapping layer and copper wire mesh braided layer, described copper wire mesh braided layer is woven in described aluminium foil lapping layer periphery.Described copper wire mesh braided layer can be the tinned wird braid.Preferable, the coverage rate of described foil shielding layer is 100%, the coverage rate of described copper wire mesh braided layer is 86%.

Preferably, described copper wire mesh braided layer is directly to be that the copper cash weaving of 0.16mm forms by 112 lines.

Preferably, the lay of the cable cable core that is twisted into of described holding wire and power line is between between the 50mm to 70mm.

Preferably, described lead is the six roots of sensation altogether, and wherein said holding wire has two, and described power line has four.

Preferably, described conductor is a tinned wird, and described insulating barrier is a polyfluorinated ethylene plastic.

Compared with prior art, the utility model is made up of holding wire and power line owing to described lead, described holding wire is used for the information signal of transmission control equipment work, described power line is used for the equipment that is transmitted as provides the power supply signal of work, make the information signal that a cable both can transmission control equipment work, also can be transmitted as the power supply signal that equipment provides working power, provide cost savings and be convenient to and operate, and the insulating barrier periphery of described holding wire is woven with interior copper wire mesh braided layer, can effectively shield the mutual interference mutually between external interference and holding wire and the power line, described screen coats described cable cable core, and described paper bag band coats described screen, the described serving described paper bag band that is covered, can further shield external interference, the serviceability of raising equipment, described serving are Thermoplastic Vulcanizate, its low smoke and zero halogen, environmental, and uvioresistant, also cold-resistant, therefore cable of the present utility model can satisfy engineering equipment in environment abominable field and shopwork conditions needed.

Description of drawings

Fig. 1 is the structure chart of the utility model shielded cable for engineering apparatus.

Fig. 2 is the sectional view of shielded cable for engineering apparatus shown in Figure 1.

Embodiment

With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the utility model aims to provide a kind of environmental protection, cold-resistant, uvioresistant and has good shield effectiveness, and the cable that holding wire and power line are twisted together.Described cable can overcome open-air adverse circumstances and guarantee communication quality, satisfies the several essential conditions of engineering equipment with cable.

Figure 1 and Figure 2, the utility model shielded cable for engineering apparatus comprise six leads 110, screen 130, paper bag band 140 and serving 150.Lead 110 comprises conductor 111 and coats the insulating barrier 112 of described conductor 111.These leads 110 are twisted into the cable cable core mutually, and lay is between between the 50mm to 70mm, are the best with the lay of 60mm.Described screen 130 coats described cable cable core, and described paper bag band 140 coats described screen 130, the described paper bag band 140 of described serving 150 linings.The coverage rate of described paper bag band 140 is greater than 100%.

Described lead 110 external diameters are about 1.53mm, two holding wire 110a that are used for transmit information signals are wherein arranged, remain four for being used for the power line 110b of electric energy transmitting, make the information signal that a cable both can transmission control equipment work like this, also can be transmitted as the power supply signal that equipment provides working power, provide cost savings and be convenient to and operate, holding wire 110a is except comprising conductor 111 and insulating barrier 112, also comprise internal shield, copper wire mesh braided layer 113 promptly, copper wire mesh braided layer 113 is coated on the insulating barrier 112 in described, and described interior copper wire mesh braided layer 113 can effectively shield phase mutual interference and the extraneous interference between above-mentioned holding wire 110a and the power line 110b.

Screen 130 is the bimetallic screen, can be metallic shield of the same race, adds copper braid shielding etc. as Copper Foil; Also can plant metallic shield, add copper braid shielding etc. as aluminium foil for difference.What present embodiment adopted is the wrapped copper mesh braid shielded of aluminium foil.As shown in Figure 1, copper wire mesh braided layer 132 is woven in aluminium foil lapping layer 131 peripheries.Wherein, aluminium foil lapping layer 131 shielding rates are 100%, and copper wire mesh braided layer 132 directly is that the tinned wird weaving of 0.16mm forms by 112 lines, and coverage rate is 86%, and the braiding external diameter of described copper wire mesh braided layer is 5.67mm.Because the utility model has adopted the dual shield measure, promptly interior copper wire mesh braided layer 113 and bimetallic screen 130 can effectively shield external interference, stop the interference of external electromagnetic ripple to electronic equipment, industrial equipment, improve its serviceability.

In the present embodiment, described conductor 111 adopts suitable conductive material to make, and preferably tinned wird also can be other material, as copper cash, silver-coated copper wire or the like.Preferably, the conductor 111 in the present embodiment adopts the 20AWG line, and its diameter is about 0.93mm.Described insulating barrier 112 is perfluoroethylene-propylene (FEP) plastics, and is more high temperature resistant, and black, red, white, green, yellow, blue six kinds of colors are arranged, and is used for lead is distinguished.

The serving 150 of cable can protect whole electric power cable inside not to be mechanically damaged and chemical corrosion, adopts Thermoplastic Vulcanizate (TPV) to make.This material low smoke and zero halogen, environmental, and uvioresistant, cold-resistant, therefore can work in the adverse circumstances in the open air.

The utility model shielded cable for engineering apparatus, because described lead 110 is made up of holding wire 110a and power line 110b, described holding wire 110a is used for the information signal of transmission control equipment work, described power line 110b is used for the equipment that is transmitted as provides the power supply signal of work, make the information signal that a cable both can transmission control equipment work, also can be transmitted as the power supply signal that equipment provides working power, provide cost savings and be convenient to and operate, and the insulating barrier periphery of described holding wire 110a is woven with interior copper wire mesh braided layer 113, can effectively shield the mutual interference mutually between external interference and holding wire 100a and the power line 110b, described screen 130 coats described cable cable core, described paper bag band 140 coats described screen 130, the described paper bag band 130 of described serving 150 linings, can further shield external interference, the serviceability of raising equipment, described serving 150 is a Thermoplastic Vulcanizate, its low smoke and zero halogen, environmental, and uvioresistant, also cold-resistant, therefore cable of the present utility model can satisfy engineering equipment in environment abominable field and shopwork conditions needed.

Material that the utility model shielded cable for engineering apparatus is related and parameter are all decided according to actual conditions, for well known to those of ordinary skill in the art, no longer are described in detail inferior.

Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims (10)

1. shielded cable for engineering apparatus, comprise some leads, screen, paper bag band and serving, described lead comprises conductor and coats the insulating barrier of described conductor, it is characterized in that: described lead comprises holding wire and power line, at least one of described holding wire, described holding wire also comprises interior copper wire mesh braided layer, copper wire mesh braided layer is woven in the insulating barrier periphery of described holding wire in described, described holding wire and power line are twisted into the cable cable core, described screen coats described cable cable core, described paper bag band coats described screen, the described serving described paper bag band that is covered, and described serving is a Thermoplastic Vulcanizate.

2. shielded cable for engineering apparatus as claimed in claim 1 is characterized in that: described screen is the double-level-metal screen.

3. shielded cable for engineering apparatus as claimed in claim 1 is characterized in that: described screen comprises aluminium foil lapping layer and copper wire mesh braided layer, and described copper wire mesh braided layer is woven in described aluminium foil lapping layer periphery.

4. shielded cable for engineering apparatus as claimed in claim 3 is characterized in that: the coverage rate of described foil shielding layer is 100%, and the coverage rate of described copper wire mesh braided layer is 86%.

5. shielded cable for engineering apparatus as claimed in claim 3 is characterized in that: described copper wire mesh braided layer is the tinned wird braid.

6. shielded cable for engineering apparatus as claimed in claim 3 is characterized in that: described copper wire mesh braided layer is directly to be that the copper cash weaving of 0.16mm forms by 112 lines.

7. shielded cable for engineering apparatus as claimed in claim 1 is characterized in that: the lay of the cable cable core that described holding wire and power line are twisted into is between between the 50mm to 70mm.

8. shielded cable for engineering apparatus as claimed in claim 1 is characterized in that: described lead is the six roots of sensation altogether, and wherein said holding wire has two, and described power line has four.

9. shielded cable for engineering apparatus as claimed in claim 1 is characterized in that: described insulating barrier is a polyfluorinated ethylene plastic.

10. shielded cable for engineering apparatus as claimed in claim 1 is characterized in that: described conductor is a tinned wird.

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