CN218602125U

CN218602125U - Low-capacitance low-loss power cable for power transmission

Info

Publication number: CN218602125U
Application number: CN202222475364.8U
Authority: CN
Inventors: 周建生
Original assignee: Xu Electric Technology Suzhou Co ltd
Current assignee: Xu Electric Technology Suzhou Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-03-10
Anticipated expiration: 2032-09-19

Abstract

The utility model relates to a power cable technical field discloses a low electric capacity low-loss power cable for power transmission, including the fixed filling layer of cable main part and electric core, the equal fixedly connected with in both ends of cable main part connects, two the equal fixedly connected with interface of preceding terminal surface of joint, two the connection chamber, two have all been seted up to the inside of interface connect the equal a plurality of connecting blocks of fixedly connected with of preceding terminal surface in chamber, a plurality of high temperature resistant insulating layer of the inside fixedly connected with of the fixed filling layer of electric core, it is a plurality of the equal fixedly connected with electric core of inner wall of high temperature resistant insulating layer, weaving layer in the outer wall fixedly connected with of the fixed filling layer of electric core, the outer sheath of outer wall fixedly connected with second of interior weaving layer, the outer sheath of the outer sheath's of outer wall fixedly connected with first oversheath of second. The utility model discloses in, the device is through a plurality of mechanisms that increase for its in use electric capacity produces less and electric energy loss is low, has improved the practicality of this cable greatly.

Description

Low-capacitance low-loss power cable for power transmission

Technical Field

The utility model relates to a power cable technical field especially relates to a low electric capacity low-loss power cable for power transmission.

Background

The power cable is a cable with a thick wire diameter, generally 3 cores or four cores and thick interphase insulation, and is mainly used as a main line of a three-phase industrial power supply or a single-phase civil power supply in a power supply system.

In the existing power cable, the internal structure design is mostly too simple, and the problems of large capacitance generation and too high electric energy loss exist in the use process, so that the practical performance of the cable in the use process is not high, and therefore, the technical improvement is urgently needed.

Through retrieval, the prior patent (publication number: CN 209607492U) discloses a power cable. Although this patent technique improves the control wire core group, increases the control wire shielding layer and has improved the structure, and control signal and communication signal can not mutual interference, but the electric capacity produces great and the too high problem of electric energy loss in the existence use to lead to its practicality not high. Accordingly, those skilled in the art have provided a low-capacitance low-loss power cable for power transmission to solve the problems set forth in the above background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the low electric capacity low-loss power cable for power transmission who proposes, the device is through a plurality of mechanisms that increase for its in use electric capacity produces less and electric energy loss is low, has improved the practicality of this cable greatly.

In order to achieve the above purpose, the utility model provides a following technical scheme: a low-capacitance low-loss power cable for power transmission comprises a cable main body and an electric core fixing and filling layer, wherein joints are fixedly connected to two ends of the cable main body, interfaces are fixedly connected to front end faces of the two joints, connecting cavities are formed inside the two interfaces, a plurality of connecting blocks are fixedly connected to front end faces of the two connecting cavities, a plurality of high-temperature-resistant insulating layers are fixedly connected to the inside of the electric core fixing and filling layer, an electric core is fixedly connected to the inner wall of each high-temperature-resistant insulating layer, an inner weaving layer is fixedly connected to the outer wall of the electric core fixing and filling layer, a second outer sheath is fixedly connected to the outer wall of the inner weaving layer, a first outer sheath is fixedly connected to the outer wall of the second outer sheath, a waterproof layer is fixedly connected to the outer side of the inside of the first outer sheath, a torsion-resistant layer is fixedly connected to the inner wall of the waterproof layer, a power shielding layer is fixedly connected to the inner wall of the torsion-resistant layer, an outer weaving layer is fixedly connected to the inner wall of the power shielding layer, a low-temperature-resistant insulating layer is fixedly connected to the outer side of the inside of the second outer sheath, and a flame-retardant layer is fixedly connected to the inner wall of the low-temperature-resistant insulating layer;

through the technical scheme, the device is additionally provided with a plurality of mechanisms, so that the capacitance is smaller and the electric energy loss is low in use, and the practicability of the cable is greatly improved.

Furthermore, the outer walls of the two interfaces are provided with threads;

through the technical scheme, the arranged threads facilitate connection of the interface and equipment for outputting electric energy.

Further, the flame-retardant layer is made of a halogen-free low-smoke flame-retardant polyolefin material;

through the technical scheme, the flame retardant capability of the flame retardant layer can be improved through the halogen-free low-smoke flame retardant polyolefin material.

Further, the inner braided layer and the outer braided layer are both made of nickel-plated copper alloy braided materials;

through the technical scheme, the hardness of the cable can be improved through the nickel-plated copper alloy braided material.

Further, the torsion-resistant layer is made of an aluminum alloy woven material;

through above-mentioned technical scheme, can improve the resistant ability of turning round of resistant layer through the aluminum alloy braided material.

Further, the electric power shielding layer is made of a copper core polyvinyl chloride material;

through above-mentioned technical scheme, through the electric power shielding layer (make its inside control signal and communication signal can not mutual interference) of making by copper core polyvinyl chloride material.

Further, the battery core is made of stranded silver-plated wires;

through the technical scheme, the battery cell made of the stranded silver-plated wire has low loss performance.

Further, the waterproof layer is made of polyurethane paint;

through the technical scheme, the waterproof capability of the waterproof layer can be improved through the polyurethane coating.

The utility model discloses following beneficial effect has:

1. the utility model provides a pair of low electric capacity low-loss power cable for power transmission, the electric core of this cable is made by the transposition silvered wire, the transposition silvered wire has a great deal of performance such as good high voltage resistant, the high frequency loss is little, ageing-resistant and long service life, the inside fixed filling layer of electric core that is provided with of cable, its inside is provided with a plurality of electric cores, a plurality of electric cores are fixed inside it by the fixed filling layer of electric core, make cable in use reduce its inside electric capacity that produces, improve the practicality of this cable greatly.

2. The utility model provides a pair of low-capacitance low-loss power cable for power transmission is provided with fire-retardant layer and makes by steamed low cigarette fire-retardant polyolefin material in this cable, can improve the flame retardant ability on fire-retardant layer through steamed low cigarette fire-retardant polyolefin material, still is provided with in this cable and is able to turn round the layer and make by the aluminum alloy weaving layer, can improve the resistant ability of turning round of this cable greatly through the aluminum alloy weaving layer, makes its practical performance promote greatly.

3. The utility model provides a pair of power transmission is with low electric capacity low-loss power cable all is provided with the joint at its both ends in this cable to be provided with the screw thread on the interface, only need in the connection through the screw thread with the interface insert output electric energy the equipment can, save loaded down with trivial details wiring procedure in the past, improved the use convenience of this cable greatly.

Drawings

Fig. 1 is a schematic perspective view of a low-capacitance low-loss power cable for power transmission according to the present invention;

fig. 2 is a schematic view of an internal structure of a low-capacitance low-loss power cable for power transmission according to the present invention;

fig. 3 is a schematic view of an internal structure of a first outer sheath of a low-capacitance low-loss power cable for power transmission according to the present invention;

fig. 4 is a schematic diagram of an internal structure of a second outer sheath of the low-capacitance low-loss power cable for power transmission according to the present invention;

fig. 5 is a schematic view of the joint position structure of the low-capacitance low-loss power cable for power transmission according to the present invention.

Illustration of the drawings:

1. a cable main body; 2. a first outer jacket; 3. a second outer sheath; 4. an inner braid; 5. a battery cell fixing and filling layer; 6. a high temperature resistant insulating layer; 7. an electric core; 8. a waterproof layer; 9. a torsion resistant layer; 10. a power shielding layer; 11. an outer braid layer; 12. a flame retardant layer; 13. a low temperature resistant insulating layer; 14. a joint; 15. a thread; 16. an interface; 17. connecting blocks; 18. a connecting cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a low electric capacity low-loss power cable for power transmission, including cable main body 1 and electric core fixed filling layer 5, the equal fixedly connected with in both ends joint 14 of cable main body 1, the equal fixedly connected with interface 16 of preceding terminal surface of two joints 14, connection chamber 18 has all been seted up to the inside of two interface 16, the equal fixedly connected with a plurality of connecting blocks 17 of preceding terminal surface of two connection chambers 18, the inside fixedly connected with a plurality of high temperature resistant insulating layers 6 of electric core fixed filling layer 5, the equal fixedly connected with electric core 7 of the inner wall of a plurality of high temperature resistant insulating layers 6, the outer wall fixedly connected with inner braid layer 4 of electric core fixed filling layer 5, the outer wall fixedly connected with second outer sheath 3 of inner braid layer 4, the outer wall fixedly connected with first outer sheath 2 of second outer sheath 3, the inside of first outer sheath 2 is by outside fixedly connected with waterproof layer 8, the inner wall fixedly connected with resistant layer 9 of waterproof layer 8 turns round, the inner wall fixedly connected with electric power shielding layer 10 of resistant layer 9, the inner wall fixedly connected with outer braid layer 11 of electric power shielding layer 10, the inside of second outer sheath 3 is by outside fixedly connected with outer sheath 13, the inner wall fixedly connected with fire-retardant low temperature resistant insulating layer 12 of the electric core, the device is through a plurality of increase, the electric capacity of low temperature resistant insulating layer, and the low-loss power cable can produce the low-loss mechanism greatly, and the low-loss of the utility of the mechanism, and the utility of the utility is improved, and the utility of the utility model is used.

The outer walls of the two interfaces 16 are provided with threads 15, the arranged threads 15 facilitate connection of the interfaces 16 and equipment outputting electric energy, the flame-retardant layer 12 is made of halogen-free low-smoke flame-retardant polyolefin material, the flame retardant capability of the flame-retardant layer 12 can be improved through the halogen-free low-smoke flame-retardant polyolefin material, the inner braid layer 4 and the outer braid layer 11 are both made of nickel-plated copper alloy braided materials, the hardness of the cable can be improved through the nickel-plated copper alloy braided materials, the torsion-resistant layer 9 is made of aluminum alloy braided materials, the torsion resistance of the torsion-resistant layer 9 can be improved through the aluminum alloy braided materials, the electric power shielding layer 10 is made of copper core polyvinyl chloride materials, control signals and communication signals in the electric power shielding layer 10 made of the copper core polyvinyl chloride materials cannot interfere with each other, the electric core 7 is made of stranded silver wires, the electric core 7 made of the stranded silver wires has low-loss performance, the waterproof layer 8 is made of polyurethane paint, and the waterproof capability of the waterproof layer 8 can be improved through the polyurethane paint.

The working principle is as follows: the utility model discloses during the use, at first on the screw thread 15 that sets up through interface 16 outer wall is connected to the equipment of joint 14 to output electric energy, its inside electric core 7 is made by the transposition silver-plated wire, make electric core 7 can reduce the loss when carrying the electric energy, a plurality of electric core 7 fixed connection are inside and the outer wall fixedly connected with high temperature insulation layer 6 of electric core 7 of the fixed filling layer 5 of electric core, make cable in use reduce its inside electric capacity that produces, still be provided with electric power shielding layer 10 in the cable, fire-retardant layer 12 and resistant layer 9 of turning round, electric power shielding layer 10 is made by copper core polyvinyl chloride material, make its inside control signal and communication signal can not mutual interference, fire-retardant layer 12 is just made by halogen-free low smoke flame retardant polyolefin material, can improve fire-retardant property on fire-retardant layer 12 through halogen-free low smoke flame retardant polyolefin material, the resistant layer 9 of turning round of setting is made by the aluminum alloy weaving layer, can improve the resistant ability of turning round of this aluminum alloy cable greatly through the weaving layer, make its practical performance promote greatly.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a low-capacitance low-loss power cable for power transmission, includes cable body (1) and electric core fixed filling layer (5), its characterized in that: the two ends of the cable main body (1) are both fixedly connected with connectors (14), the front end surfaces of the two connectors (14) are both fixedly connected with interfaces (16), connecting cavities (18) are respectively arranged inside the two interfaces (16), the front end surfaces of the two connecting cavities (18) are both fixedly connected with a plurality of connecting blocks (17), a plurality of high temperature resistant insulating layers (6) are fixedly connected inside the electric core fixing and filling layer (5), electric cores (7) are fixedly connected with the inner walls of the plurality of high temperature resistant insulating layers (6), the outer wall of the battery cell fixing and filling layer (5) is fixedly connected with an inner braid layer (4), the outer wall of the inner weaving layer (4) is fixedly connected with a second outer sheath (3), the outer wall of the second outer sheath (3) is fixedly connected with a first outer sheath (2), a waterproof layer (8) is fixedly connected with the inner side and the outer side of the first outer sheath (2), the inner wall of the waterproof layer (8) is fixedly connected with a torsion-resistant layer (9), the inner wall of the torsion-resistant layer (9) is fixedly connected with an electric power shielding layer (10), the inner wall of the electric power shielding layer (10) is fixedly connected with an outer braid layer (11), the inner side and the outer side of the second outer sheath (3) are fixedly connected with a low temperature resistant insulating layer (13), the inner wall of the low-temperature-resistant insulating layer (13) is fixedly connected with a flame-retardant layer (12).

2. A low capacitance low loss power cable for power transmission according to claim 1, wherein: the outer walls of the two interfaces (16) are provided with threads (15).

3. A low capacitance low loss power cable for power transmission according to claim 1, wherein: the flame-retardant layer (12) is made of a halogen-free low-smoke flame-retardant polyolefin material.

4. A low capacitance low loss power cable for power transmission according to claim 1, wherein: the inner weaving layer (4) and the outer weaving layer (11) are both made of nickel-plated copper alloy weaving materials.

5. A low capacitance low loss power cable for power transmission according to claim 1, wherein: the torsion-resistant layer (9) is made of an aluminum alloy woven material.

6. A low capacitance low loss power cable for power transmission according to claim 1, wherein: the electric power shielding layer (10) is made of copper core polyvinyl chloride materials.

7. A low capacitance low loss power cable for power transmission according to claim 1, wherein: the battery core (7) is made of stranded silver-plated wires.

8. A low capacitance low loss power cable for power transmission according to claim 1, wherein: the waterproof layer (8) is made of polyurethane paint.