CN215007664U

CN215007664U - Conductor suitable for 400Hz high-frequency moving trailing cable

Info

Publication number: CN215007664U
Application number: CN202121593614.7U
Authority: CN
Inventors: 潘碧霞; 吴涛; 丁兆彦; 陈明; 孙腾; 薛鑫; 徐庭元; 蒋辉
Original assignee: Jiangsu Zhongmei Cable Co Ltd
Current assignee: Jiangsu Zhongmei Cable Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-12-03
Anticipated expiration: 2031-07-13

Abstract

The utility model relates to a conductor suitable for 400Hz high frequency removes trailing cable, support and strengthen the heart yearn and support the cover including the center, first power line closely twists in the outside of supporting the enhancement heart yearn, first power line includes first enhancement heart yearn, first bundle of silk conductor and semi-conducting strip, second power line closely twists in the outside of first power line with the control line, second power line includes that the second strengthens heart yearn and second bundle of silk conductor, the control line includes control line conductor and control line insulation cover, there is the ribbon around the outside of second power line and control line. The utility model increases the surface area of the conductor, reduces the increase of the alternating current resistance caused by the generation of the skin effect, and effectively reduces the influence of the impedance on the current-carrying capacity of the cable; the rubber has the advantages of being soft, resistant to dragging and resistant to abrasion; the sinle silk is arranged more rationally, the structure is more compact, the external diameter is little, it is little to occupy the laying space, makes the cable possess the function of transmission power electricity and control signal.

Description

Conductor suitable for 400Hz high-frequency moving trailing cable

Technical Field

The utility model belongs to the technical field of the cable structure, specifically speaking is a conductor suitable for 400Hz high frequency removes trailing cable.

Background

With the rapid development of modern economy in China, special cables for special occasions are more and more in demand and widely used, and the special cables are mainly used in places such as airports, ports, docks, mines, wind power generation farms and the like. Wherein, 400Hz cable is required to be matched in aviation and large ship power systems, and the power supply device is mainly used for mobile power supply. Because the safety requirements of aircraft and ship carriers are very high, and the folding and unfolding movement is frequent, the requirements on the flexibility of the cable and the wire breakage rate of the conductor after being bent for many times and the external tension resistance are very high. Therefore, the 400Hz high-frequency moving trailing cable conductor belongs to a product with higher technical content in the cable industry, and needs to meet the requirements.

The common flexible cable adopts copper wires to be twisted into a whole conductor, is hard, is inconvenient to install, has the same sectional area and has smaller unit current-carrying capacity.

Problems and disadvantages of the prior art:

1. the reactance of the cable increases at high frequency 400Hz, which in turn affects the voltage drop across the line during use. The common power core conductor has a small cross section and cannot meet the use requirement of a high-frequency cable.

2. The density of the copper conductor is 8.89g/cm³The produced cable is heavy, is not required to be bent and moved frequently for a long time, and has the hidden trouble of high wire breakage rate.

3. The material cost of copper is increasing day by day, the current-carrying capacity of the same requirement, the conductor cross-section that produces with current cable structure is great, and the whole cost of cable is higher.

4. The power lines and the control lines are not concentrated in the same cable, the outer diameter is large, and the power lines and the control lines need to be laid for many times.

Disclosure of Invention

The utility model aims at overcoming the not enough of existence among the prior art, provide one kind can reduce the influence of impedance to the cable current-carrying capacity effectively and softer, resistant drag, arrange reasonable, the compact structure be applicable to 400Hz high frequency and remove the conductor of dragging the cable.

According to the technical scheme provided by the utility model, the conductor suitable for the 400Hz high-frequency mobile towing cable comprises a supporting reinforced core wire, a first power wire, a second power wire, a control wire and a ribbon;

the supporting and reinforcing core wire comprises a supporting sleeve and a central reinforcing core wire positioned in the supporting sleeve, a plurality of first power wires are tightly twisted outside the supporting and reinforcing core wire, the first power line comprises a first reinforced core wire, a plurality of groups of first bundle wire conductors twisted outside the first reinforced core wire and a semi-conductive belt wrapped outside the first bundle wire conductors, a plurality of second power lines and a plurality of control lines are tightly twisted outside the first power line, the second power line comprises a second reinforced core wire and a plurality of groups of second bundle wire conductors twisted outside the second reinforced core wire, the control line comprises a control line conductor and a control line insulating sleeve arranged outside the control line conductor, and the second power line and the control line are wrapped with a binding belt, and the first bundle wire conductor, the second bundle wire conductor and the control line conductor are formed by twisting a plurality of conductor monofilaments.

Preferably, the central reinforced core wire, the first reinforced core wire and the second reinforced core wire are all made of aramid fiber.

Preferably, the material of the support sleeve is vulcanized rubber.

Preferably, the semiconductive belt is made of a semiconductive nylon belt.

Preferably, the material of the ribbon is non-woven fabric.

Preferably, the first power line comprises a first reinforced core wire, 6 groups of first bundle wire conductors twisted outside the first reinforced core wire, and a semi-conductive belt wrapped outside the first bundle wire conductors.

Preferably, the second power line includes one second reinforcing core wire and 6 sets of second bundle wire conductors twisted outside the one second reinforcing core wire.

Preferably, the first bundle wire conductor, the second bundle wire conductor and the control wire conductor are formed by twisting a plurality of conductor monofilaments with the same diameter.

Preferably, the number of the first power lines is 6 and the outer diameters thereof are equal, the number of the second power lines is 8 and the outer diameters thereof are equal, and the number of the control lines is 4 and the outer diameters thereof are equal; the 8 second power lines are averagely divided into a left group and a right group, the 4 control lines are averagely divided into an upper group and a lower group, and the upper group and the lower group of control lines are positioned between the left group and the right group of second power lines.

The utility model has the advantages of it is following:

1. the utility model discloses increased the surface area of conductor, reduced the skin effect and produced the alternating current resistance increase that arouses, the effectual influence that reduces impedance to cable current-carrying capacity.

2. The utility model discloses have softer, resistant dragging, stand wear and tear performance, crooked 10000 times, the disconnected silk rate of conductor is no longer than 1%.

3. The utility model provides a power line and control line concentrate on same cable in, the sinle silk is arranged more rationally, the structure is more compact, the external diameter is little, it is little to occupy the laying space, makes the cable possess transmission power electricity and control signal's function.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

The conductor of the utility model is suitable for 400Hz high frequency mobile towing cable, as shown in figure 1, it comprises a supporting reinforced core wire, a first power line, a second power line, a control line and a ribbon 5;

the supporting and reinforcing core wire comprises a supporting sleeve 12 and a central reinforcing core wire 11 positioned in the supporting sleeve 12, 6 first power wires are tightly twisted outside the supporting and reinforcing core wire, each first power wire comprises a first reinforcing core wire 21, 6 groups of first bundle wire conductors 22 twisted outside the first reinforcing core wire 21 and a semi-conductive belt 23 wrapped outside the first bundle wire conductors 22, 8 second power wires and 4 control wires are tightly twisted outside the first power wires, 8 second power wires are averagely divided into a left group and a right group, 4 control wires are averagely divided into an upper group and a lower group, the upper group and the lower group of control wires are positioned between the left group and the right group of second power wires, each second power wire comprises a second reinforcing core wire 31 and 6 groups of second bundle wire conductors 32 twisted outside the second reinforcing core wire 31, each control wire comprises a control wire conductor 41 and a control wire insulating sleeve 42 arranged outside the control wire conductor 41, the second power line and the control line are wrapped with a binding belt 5, and the first bundling wire conductor 22, the second bundling wire conductor 32 and the control line conductor 41 are formed by twisting a plurality of conductor monofilaments.

The heart is strengthened heart yearn 11, first enhancement heart yearn 21 and second and is strengthened the heart yearn 31 and be the aramid fiber material, the material of supporting cover 12 is vulcanized rubber, the material of semi-conductive belt 23 is semi-conductive nylon belt, the material of ribbon 5 is the non-woven fabrics.

The first bundle wire conductor 22, the second bundle wire conductor 32 and the control wire conductor 41 are formed by twisting a plurality of conductor monofilaments with the same diameter. The conductor of the utility model adopts conductor single wires, bundle twisting and complex twisting.

The utility model discloses in, strengthen heart yearn 11 at the center that supports the heart yearn and have the center of aramid fiber material, have the first enhancement heart yearn 21 of aramid fiber material at the center of first power line, strengthen heart yearn 31 at the second that has the aramid fiber material at the center of second power line, because the center of aramid fiber material is strengthened heart yearn 11, first enhancement heart yearn 21 and second and is strengthened 31 tensile strength of heart yearn very strong, make the utility model is suitable for an occasion that anti external tensile force performance is very high and frequent removal, make the utility model discloses a relapse crooked number of times more than or equal to 10000, creep speed less than or equal to 1 x 10^-2（%/h）。

In the first power line, the semi-conductive tape 23 wrapped outside the first bundle of wire conductors 22 can be used for homogenizing an electric field, so that the current in the first bundle of wire conductors 22 is concentrated on the surface of the first bundle of wire conductors 22, a good contact surface between the first bundle of wire conductors 22 is enlarged, and the current-carrying capacity of the first bundle of wire conductors 22 is increased.

The utility model discloses in, strengthen the support cover 12 of the outside crowded package vulcanite material of heart yearn 11 at the center, it plays support and filling effect to first power line, second power line and control line.

In the utility model, the conductor monofilament forming the first bundle wire conductor 22, the second bundle wire conductor 32 and the control line conductor 41 is the 5 th class copper conductor monofilament stipulated in GB/T3956 and 2008, the resistivity of the copper conductor is less than or equal to 0.017241 omega mm²M, conductivity more than or equal to 100% IACS, and elongation more than or equal to 15%.

The utility model discloses effectively increased the conductor external diameter under same cross-section of weighing, reached required big cross-section utility, the current-carrying capacity of the conventional 5 th kind of copper conductor of the same cross-section is 86% of this structure copper conductor, 1.16 times conventional 5 th kind of copper conductor cross-section promptly just can satisfy with the utility model discloses the same current-carrying capacity can effectively improve cable conductor's effective utilization ratio.

The utility model discloses in, power line and control line layering transposition form, and outmost 8 second power lines are by average about being divided into two sets ofly, and they are bilateral 60 settings around the axle center, and two sets of about 4 control lines are by average being divided into, and symmetric distribution is in the conductor outer layer, and the sinle silk is arranged more rationally, and the structure is more compact, and the external diameter is little, and occupation laying space is little, makes the utility model discloses a conductor possesses transmission power electricity and control signal's function.

Claims

1. A conductor suitable for a 400Hz high-frequency mobile towing cable comprises a supporting and reinforcing core wire, a first power wire, a second power wire, a control wire and a ribbon (5);

the method is characterized in that: the supporting and reinforcing core wire comprises a supporting sleeve (12) and a central reinforcing core wire (11) positioned in the supporting sleeve (12), a plurality of first power wires are tightly twisted outside the supporting and reinforcing core wire, each first power wire comprises a first reinforcing core wire (21), a plurality of groups of first bundled wire conductors (22) twisted outside the first reinforcing core wire (21) and a semi-conductive belt (23) wrapped outside the first bundled wire conductors (22), a plurality of second power wires and a plurality of control wires are tightly twisted outside the first power wires, each second power wire comprises a second reinforcing core wire (31) and a plurality of groups of second bundled wire conductors (32) twisted outside the second reinforcing core wire (31), each control wire comprises a control wire conductor (41) and a control wire insulating sleeve (42) arranged outside the control wire conductor (41), and a binding belt (5) is wrapped outside the second power wires and the control wires, and the first bunched wire conductor (22), the second bunched wire conductor (32) and the control wire conductor (41) are formed by twisting a plurality of conductor monofilaments.

2. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the central reinforced core wire (11), the first reinforced core wire (21) and the second reinforced core wire (31) are all made of aramid fiber.

3. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the supporting sleeve (12) is made of vulcanized rubber.

4. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the semi-conductive belt (23) is made of a semi-conductive nylon belt.

5. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the ribbon (5) is made of non-woven fabric.

6. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the first power line comprises a first reinforced core wire (21), 6 groups of first strand conductors (22) twisted outside the first reinforced core wire (21) and a semi-conductive belt (23) wrapped outside the first strand conductors (22).

7. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the second power line comprises a second reinforced core wire (31) and 6 groups of second bundle wire conductors (32) stranded outside the second reinforced core wire (31).

8. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the first bunched wire conductor (22), the second bunched wire conductor (32) and the control wire conductor (41) are formed by stranding a plurality of conductor monofilaments with the same diameter.

9. The conductor adapted for a 400Hz high frequency moving trailing cable according to claim 1 wherein: the number of the first power lines is 6 and the outer diameters of the first power lines are equal, the number of the second power lines is 8 and the outer diameters of the second power lines are equal, and the number of the control lines is 4 and the outer diameters of the control lines are equal; the 8 second power lines are averagely divided into a left group and a right group, the 4 control lines are averagely divided into an upper group and a lower group, and the upper group and the lower group of control lines are positioned between the left group and the right group of second power lines.