CN201508722U - A new instrument cable - Google Patents

A new instrument cable Download PDF

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Publication number
CN201508722U
CN201508722U CN2009201871432U CN200920187143U CN201508722U CN 201508722 U CN201508722 U CN 201508722U CN 2009201871432 U CN2009201871432 U CN 2009201871432U CN 200920187143 U CN200920187143 U CN 200920187143U CN 201508722 U CN201508722 U CN 201508722U
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cable
core
conductor
pair twist
instrument cable
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吴义华
胡宏山
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Anhui Huiyi Cable Group Co Ltd
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Anhui Huiyi Cable Group Co Ltd
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Abstract

一种新型仪表电缆,其特征是导体采用多根软裸铜线绞或镀锡软铜线绞合而成,在导体上挤包乙烯-四氟乙烯共聚物ETFE形成的绝缘层构成绝缘线芯;每两根绝缘线芯绞合成对绞组,在对绞组上重叠绕包一层聚酯带层构成单元对绞组,用两根单元对绞组和一根绝缘线芯按左向成缆构成缆芯,在缆芯的外表面由内向外依次设重叠绕包铝/塑/铝复合带、屏蔽引流线、镀锡铜丝编织总屏蔽层、挤包辐照交联低烟无卤阻燃弹性体材料形成外护套层。本实用新型可用于信号传输和信号控制装置的连接线,具有防电磁干扰、无卤、低烟、阻燃等特性,同时具有结构紧凑、成本低、重量轻等优点。

Figure 200920187143

A new type of instrument cable, which is characterized in that the conductor is made of multiple soft bare copper wires or tinned soft copper wires, and the insulating layer formed by extruding ethylene-tetrafluoroethylene copolymer ETFE on the conductor constitutes the insulating core ; Every two insulated wire cores are twisted into a pair group, and a layer of polyester tape is overlapped on the pair group to form a unit pair group, and two unit pair groups and an insulated wire core are formed in the left direction. The cable constitutes the cable core, and the outer surface of the cable core is successively provided with overlapping aluminum/plastic/aluminum composite tapes, shielded drain wires, tinned copper wire braided overall shielding layer, extruded radiation cross-linked low-smoke and halogen-free A flame retardant elastomeric material forms the outer jacket layer. The utility model can be used for connecting lines of signal transmission and signal control devices, has the characteristics of anti-electromagnetic interference, halogen-free, low-smoke, flame-retardant, etc., and has the advantages of compact structure, low cost, and light weight.

Figure 200920187143

Description

一种新型仪表电缆 A new instrument cable

技术领域technical field

本实用新型涉及一种信号电缆,尤其涉及一种新型仪表电缆,属于电线电缆技术领域。The utility model relates to a signal cable, in particular to a novel instrument cable, which belongs to the technical field of electric wires and cables.

背景技术Background technique

目前市场上大多数仪表类电缆,基本上是同一根电缆中只采用对绞组、三星组或四星组结构中的一种结构,这种结构具有一定的局限性,不符合特殊电气装备连接线的需要。At present, most of the instrument cables on the market are basically only one of the twisted, three-star or four-star structures in the same cable. This structure has certain limitations and does not meet special electrical equipment connections. line needs.

电气仪表类电缆,同根电缆中,至少有一根为接地线,也有一个单元组内有一根接地线,这样的设计结构,使电缆的成本增加。同时一般仪表电缆都需要分屏蔽和总屏蔽,如果采用传统式设计结构,加工时多一道工序,制造成本也增加,废时废料。根据仪表电缆的电气特性,优化传统仪表电缆的结构和新材料的应用,提升仪表电缆的性价比。For electrical instrument cables, at least one of the same cables is a grounding wire, and there is also a grounding wire in a unit group. Such a design structure increases the cost of the cable. At the same time, general instrument cables need separate shielding and overall shielding. If the traditional design structure is adopted, there will be one more process during processing, and the manufacturing cost will also increase, which will waste time and waste. According to the electrical characteristics of instrument cables, the structure of traditional instrument cables and the application of new materials are optimized to improve the cost performance of instrument cables.

发明内容Contents of the invention

本实用新型是为避免上述现有技术所存在的不足之处,提供一种新型仪表电缆,可作为信号传输和信号控制装置的连接线,具有防电磁干扰、无卤、低烟、阻燃等特性,同时具有结构紧凑、成本低、重量轻等优势。The utility model is to avoid the shortcomings of the above-mentioned prior art, and provides a new type of instrument cable, which can be used as a connecting line for signal transmission and signal control devices, and has the functions of anti-electromagnetic interference, halogen-free, low-smoke, flame-retardant, etc. Features, but also has the advantages of compact structure, low cost, light weight and so on.

本实用新型解决技术问题采用如下技术方案:The utility model solves the technical problem and adopts the following technical solutions:

本实用新型一种新型仪表电缆的结构特点是导体采用多根软裸铜线绞或镀锡软铜线绞合而成,在所述导体上挤包乙烯-四氟乙烯共聚物ETFE形成的绝缘层构成绝缘线芯;每两根绝缘线芯绞合成对绞组,在对绞组上重叠绕包一层聚酯带层构成单元对绞组,用两根单元对绞组和一根绝缘线芯按左向成缆构成缆芯,在缆芯的外表面由内向外依次设重叠绕包铝/塑/铝复合带、屏蔽引流线、镀锡铜丝编织总屏蔽层、挤包辐照交联低烟无卤阻燃弹性体材料形成外护套层。The structural feature of a new type of instrument cable of the utility model is that the conductor is formed by twisting a plurality of soft bare copper wires or tinned soft copper wires, and the insulation formed by extruding ethylene-tetrafluoroethylene copolymer ETFE on the conductor The insulated wire core is composed of two layers; every two insulated wire cores are twisted into a pair group, and a layer of polyester tape is overlapped on the pair group to form a unit pair group, using two unit pair groups and an insulated wire The core is cabled to the left to form the cable core, and the outer surface of the cable core is arranged in sequence from the inside to the outside with overlapping aluminum/plastic/aluminum composite tapes, shielding drain wires, tinned copper wire braided overall shielding layer, extruded and irradiated alternating current Combined low-smoke halogen-free flame-retardant elastomer material forms the outer sheath layer.

本实用新型仪表电缆的结构特点也在于The structural characteristics of the instrument cable of the utility model also lie in

所述导体采用七根正规绞合结构;The conductor adopts seven regular twisted structures;

所述导体截面积为0.5~2.5mm2The cross-sectional area of the conductor is 0.5-2.5 mm 2 .

所述对绞组绝缘线芯绞合节距为100-120mm,同缆中两根单元对绞组节距不同。The twisting pitch of the insulated wire cores of the twisted pair group is 100-120mm, and the pitch of the paired paired groups of the two units in the same cable is different.

所述屏蔽引流线采用七根镀锡铜绞合结构,总截面积不小于0.5mm2The shielded drain wire adopts seven tinned copper stranded structures, and the total cross-sectional area is not less than 0.5mm 2 .

与已有技术相比,本实用新型有益效果体现在:Compared with the prior art, the beneficial effects of the utility model are reflected in:

1、本实用新型中绝缘层采用乙烯-四氟乙烯共聚物ETFE料挤包,此料绝缘性能、电气性能、机械性能和耐热性能非常优异,同时此料可以制造成薄绝缘,减小电缆结构尺寸;1. The insulation layer of the utility model is extruded with ethylene-tetrafluoroethylene copolymer ETFE material. This material has excellent insulation performance, electrical performance, mechanical performance and heat resistance performance. At the same time, this material can be made into thin insulation to reduce cable structure size;

2、本实用新型中在对绞单元组外设置一根绝缘线芯,由于单元组工作频率不同,可以作为共同的接地线或回路线,比传统设计方法减小了制造成本;2. In the utility model, an insulated wire core is arranged outside the twisted unit group. Due to the different operating frequencies of the unit group, it can be used as a common grounding wire or return line, which reduces the manufacturing cost compared with the traditional design method;

3、本实用新型中内屏蔽层采用铝/塑/铝材质,屏蔽效果比铝/塑复合带好。3. The inner shielding layer of the utility model is made of aluminum/plastic/aluminum material, and the shielding effect is better than that of the aluminum/plastic composite belt.

4、本实用新型中导体采用七根铜丝正规绞合结构,导体表面平整,弯曲性能优良,提高了电缆的柔软性;导体截面积为0.5~2.5mm2,为配套电气标准化接口设计,符合设备相互之间的规范连接;4. The conductor in this utility model adopts seven copper wires regular twisted structure, the surface of the conductor is smooth, the bending performance is excellent, and the flexibility of the cable is improved; the cross-sectional area of the conductor is 0.5-2.5mm 2 , which is designed for the supporting electrical standardization interface and conforms to Canonical connections between devices;

5、本实用新型中绞组绝缘线芯绞合节距为100-120mm,同缆中两根单元对绞组节距不同,有效降低线组之间的串音、电气干扰等特点;5. The stranding pitch of the insulated wire cores of the twisted group in the utility model is 100-120mm, and the pitch of the twisted group of the two units in the same cable is different, which effectively reduces the characteristics of crosstalk and electrical interference between the wire groups;

6、本实用新型中屏蔽引流线采用七根镀锡铜绞合结构,总截面积不小于0.5mm2,增加了屏蔽效果,防止由于引流线截面小接头处氧化导致电阻过大而失去功能。6. In the utility model, the shielded drain wire adopts seven tinned copper stranded structures, and the total cross-sectional area is not less than 0.5mm 2 , which increases the shielding effect and prevents the loss of function due to excessive resistance due to oxidation at the small joint of the drain wire cross section.

附图说明Description of drawings

图1为本实用新型结构示意图。Fig. 1 is the structural representation of the utility model.

图中标号:1导体,2绝缘线芯,3聚酯带层,4单元对绞组,5复合带,6引流线,7总屏蔽层,8外护套层。Labels in the figure: 1 conductor, 2 insulated wire core, 3 polyester tape layer, 4 unit twisted group, 5 composite tape, 6 drain wire, 7 overall shielding layer, 8 outer sheath layer.

下面结合附图和实施例对本实用新型进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is further described.

具体实施方式Detailed ways

参见图1,本实施例中,导体1采用多根软裸铜线绞或镀锡软铜线绞合而成,在导体1上挤包乙烯-四氟乙烯共聚物ETFE形成的绝缘层构成绝缘线芯2;每两根绝缘线芯2绞合成对绞组,在对绞组上重叠绕包一层聚酯带层3,并以此构成单元对绞组4,用两根单元对绞组4和一根绝缘线芯2按左向成缆构成缆芯,在缆芯的外表面由内向外依次设重叠绕包置铝/塑/铝复合带5、屏蔽引流线6、镀锡铜丝编织总屏蔽层7、挤包辐照交联低烟无卤阻燃弹性体材料形成外护套层8。Referring to Fig. 1, in this embodiment, the conductor 1 is formed by twisting a plurality of soft bare copper wires or tinned soft copper wires, and the insulating layer formed by extruding ethylene-tetrafluoroethylene copolymer ETFE on the conductor 1 constitutes the insulation layer. Wire core 2; every two insulated wire cores 2 are twisted into a pair group, and a layer of polyester tape layer 3 is overlapped on the pair group to form a unit pair group 4, and two unit pair groups are used 4 and an insulated wire core 2 are cabled to the left to form a cable core, and the outer surface of the cable core is sequentially provided with overlapping wrapping aluminum/plastic/aluminum composite tapes 5, shielding drain wires 6, and tinned copper wires The overall shielding layer 7 is braided, and the outer sheath layer 8 is formed by extruding radiation cross-linked low-smoke halogen-free flame-retardant elastomer material.

具体实施中,导体1采用七根正规绞合结构;导体1截面积为0.5~2.5mm2;对绞组4绝缘线芯绞合节距为100-120mm,同缆中两根单元对绞组节距不同;屏蔽引流线6采用七根镀锡铜绞合结构,总截面积不小于0.5mm2In the specific implementation, the conductor 1 adopts seven regular twisted structures; the cross-sectional area of the conductor 1 is 0.5-2.5mm 2 ; The pitches are different; the shielded drain wire 6 adopts seven tinned copper stranded structures, and the total cross-sectional area is not less than 0.5mm 2 .

Claims (5)

1. novel instrument cable is characterized in that conductor (1) adopts many soft bare copper wires strands or tin annealed copper wire is stranded to form, and extrudes the insulating barrier that ethylene-tetrafluoroethylene copolymer ETFE forms and constitute insulated wire cores (2) on described conductor (1); Per two thoroughly do away with edge core (2) is twisted into the pair twist group, overlapping wrapped one deck polyester belt (3) constitutes unit pair twist group (4) on the pair twist group, thoroughly do away with edge core (2) with two root unit pair twist groups (4) and and press the left-hand stranding and constitute cable core, establish the overlapping wrapped aluminium/mould/aluminum composite belt (5), shielding drainage thread (6), tinned copper wire put from inside to outside successively at the outer surface of cable core and weave total screen (7), extrude irradiated crosslinking low-smoke and halogen-free flame retardant elastomeric material formation external sheath layer (8).
2. a kind of novel instrument cable according to claim 1 is characterized in that described conductor (1) adopts seven regular lay configuration.
3. a kind of novel instrument cable according to claim 1 is characterized in that described conductor (1) sectional area is 0.5~2.5mm 2
4. a kind of novel instrument cable according to claim 1 is characterized in that described pair twist group (4) insulated wire cores twisting pitch is 100-120mm, with two root unit pair twist group pitch differences in the cable.
5. a kind of novel instrument cable according to claim 1 is characterized in that described shielding drainage thread (6) adopts seven tin-coated copper lay configuration, and total sectional area is not less than 0.5mm 2
CN2009201871432U 2009-08-26 2009-08-26 A new instrument cable Expired - Fee Related CN201508722U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903688A (en) * 2014-03-06 2014-07-02 安徽猎塔电缆集团有限公司 Instrument cable for electric generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903688A (en) * 2014-03-06 2014-07-02 安徽猎塔电缆集团有限公司 Instrument cable for electric generator

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100616

Termination date: 20140826

EXPY Termination of patent right or utility model