CN220553312U - Shielded power cable - Google Patents
Shielded power cable Download PDFInfo
- Publication number
- CN220553312U CN220553312U CN202322191844.6U CN202322191844U CN220553312U CN 220553312 U CN220553312 U CN 220553312U CN 202322191844 U CN202322191844 U CN 202322191844U CN 220553312 U CN220553312 U CN 220553312U
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- China
- Prior art keywords
- layer
- steel wire
- cable
- tensile steel
- power cable
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 238000007493 shaping process Methods 0.000 claims abstract description 35
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 239000011241 protective layer Substances 0.000 claims abstract description 23
- 238000005253 cladding Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 85
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000000741 silica gel Substances 0.000 claims description 13
- 229910002027 silica gel Inorganic materials 0.000 claims description 13
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 11
- 239000008397 galvanized steel Substances 0.000 claims description 11
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 239000011162 core material Substances 0.000 description 39
- 230000005540 biological transmission Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a shielding type power cable, which relates to the technical field of cables and comprises a tensile steel wire shaft, a rubber outer protective layer, a high-fiber outer cladding and a wire core main body, wherein a flexible clamping strip is arranged on the inner side of the high-fiber outer cladding, a shaping ring is arranged on the inner side of the flexible clamping strip, a clamping groove is formed in the outer side of the shaping ring, and a positioning hole is formed in the shaping ring. According to the shielding type power cable provided by the utility model, the tensile steel wire shaft, the flexible clamping strip and the shaping ring are arranged, when the shielding type power cable is used, the clamping groove on the shaping ring is clamped with the flexible clamping strip, the wire core main body penetrates through the wire core hole in the shaping ring around the tensile steel wire shaft, the position of the wire core main body on the shaping ring is limited by traction of the tensile steel wire shaft, the bending resistance and the stability of the whole cable are improved, and compared with the traditional mode, when the protective layer is differentiated and damaged, the wire cores are difficult to deviate, and the probability of cable deformation is reduced.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a shielding type power cable.
Background
The power cable is used as a carrier for transmitting and distributing electric energy and is commonly used for large-scale power transmission such as urban underground power grid and internal power supply circuit of large-scale factory.
The power cable has better flame retardance, and the China patent with the prior grant publication number of CN217181884U discloses a flame-retardant high-temperature-resistant transformer shielding power cable. The cable comprises three insulating cable cores with sector sections, wherein the three insulating cable cores surround a silicone rubber core tube and are stranded together with a PPS fiber core material to form a round cable core, galvanized steel wires are sleeved in the silicone rubber core tube, insulating lubricating grease is filled in the silicone rubber core tube, and each insulating cable core comprises a sector conductor and an FEP insulating layer. The cable has excellent flame-retardant and high-temperature-resistant performance, stable shielding performance, effective electromagnetic interference elimination, better safety and reliability and stable operation of a variable frequency control system.
The power cable is poor in heat dissipation capacity and conductivity, is only used for large-scale high-voltage power transmission work generally, and is different from other cables mainly by the sinle silk, insulating layer, shielding layer and protective layer combination, and when voltage reaches 15KW, can be equipped with sinle silk shielding layer and insulating shielding layer again, reduces the influence between each sinle silk through changing the power line distribution between the sinle silk, but traditional cable is wrapped up with the protective layer that plastics were made outside the sinle silk to the packing has the filler, prevents to take place the skew between the cable, and when the cable used for a long time, the protective layer that plastics was made takes place the efflorescence damage for the cable appearance takes place to warp.
Disclosure of Invention
The present utility model has been made in view of the above-mentioned problems occurring in the prior art.
Therefore, the utility model aims to provide a shielding type power cable, which solves the problems that when the traditional cable is used for a long time, a protective layer made of plastic is weathered and damaged, wire cores are deviated, and the appearance of the cable is deformed.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a shielding type power cable, includes tensile steel wire shaft, sets up at the outer protective layer of rubber of tensile steel wire shaft and high fiber surrounding layer, around the sinle silk main part at tensile steel wire shaft, the inboard fixed mounting of high fiber surrounding layer has flexible card strip of equidistance arrangement, flexible card strip is annular array around tensile steel wire shaft and distributes, the shaping ring of equidistance arrangement is fixed mounting to the inboard of flexible card strip, the draw-in groove has been seted up in the outside of shaping ring, the locating hole has still been seted up to the inside of shaping ring, the inboard at the locating hole is installed to tensile steel wire shaft, the inboard at the sinle silk hole is installed to sinle silk main part.
Preferably, the clamping groove is mutually matched with the shaping ring, a wire core hole is formed in the outer side of the positioning hole, the wire core holes are distributed in an annular array around the positioning hole, and the tensile steel wire shaft penetrates through the whole positioning hole.
Preferably, the outside of tensile steel wire axle is equipped with the outer protective layer of rubber, the outside fixed mounting of outer protective layer of rubber has the silica gel wave form layer, unsmooth has been seted up on the surface of silica gel wave form layer, the one side that the outer protective layer of rubber deviates from the silica gel wave form layer is equipped with high fiber surrounding layer, be the cross between the high fiber surrounding layer.
Preferably, an insulating shielding layer is arranged on the inner side of the high-fiber outer wrapping layer, and an insulating filling layer is filled between the shaping rings on the inner side of the insulating shielding layer.
Further, the both ends fixed mounting of rubber outer protective layer have embedded joint, the one end fixedly connected with cable main part of embedded joint, embedded joint is embedded, and the outside parcel has the insulating layer.
Preferably, the cable main body comprises a galvanized steel wire core, wherein a thermoplastic rubber tube is fixedly connected to the outer side of the galvanized steel wire core, and a copper strip inner shielding layer is fixedly connected to the surface of the thermoplastic rubber tube.
Preferably, the surface of the copper strip inner shielding layer is provided with a steel strip inner cladding, the outer side of the steel strip inner cladding is wrapped with a rubber inner protection layer, and the surface of the rubber inner protection layer is sprayed with a polyvinyl chloride flame-retardant layer.
In the technical scheme, the utility model has the technical effects and advantages that:
1. according to the utility model, the tensile steel wire shaft, the flexible clamping strip and the shaping ring are arranged, when the cable is used, the clamping connection is completed through the clamping groove on the shaping ring and the flexible clamping strip, the tensile steel wire shaft passes through the positioning hole, the cable core main body passes through the cable core hole in the shaping ring around the tensile steel wire shaft, the position of the cable core main body on the shaping ring is limited by traction of the tensile steel wire shaft, the bending resistance and the stability of the whole cable are improved, and compared with the traditional mode, when the protective layer is differentiated and damaged, the cable cores are difficult to deviate, and the probability of cable deformation is reduced.
2. According to the utility model, the rubber outer protective layer, the high-fiber outer cladding and the silica gel wave-shaped layer are arranged, so that when the cable is used, the cable is wrapped by the rubber outer protective layer, the cable transmission can be effectively prevented from being influenced by the external environment, and when the temperature of the cable is changed strongly, the high-fiber outer cladding and the silica gel wave-shaped layer can deform due to expansion and contraction within a certain degree, so that cracks on the outer skin and the inner part of the cable are effectively prevented.
3. According to the utility model, the insulating shielding layer, the insulating filling layer and the copper strip inner shielding layer are arranged, when the cable is used, the double-layer shielding is arranged, so that the electromagnetic field inside the cable can be effectively prevented from leaking, the cable is damaged, the leaked current can be grounded and discharged along the shielding layer, and the gap inside the cable is filled through the insulating filling layer, so that the use safety is protected.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a perspective view of the shaping ring of the present utility model;
fig. 4 is a cross-sectional view of a core body of the present utility model
Fig. 5 is a cross-sectional view of the high fiber overclad of the present utility model.
Reference numerals illustrate:
1. tensile steel wire shaft; 2. a rubber outer protective layer; 3. a high fiber overclad; 4. a silica gel wave layer; 5. a flexible clip strip; 6. shaping the ring; 7. a clamping groove; 8. positioning holes; 9. a wire core hole; 10. a built-in joint; 11. an insulating shielding layer; 12. an insulating filling layer; 13. a galvanized steel wire core; 14. a thermoplastic rubber tube; 15. a copper strip inner shielding layer; 16. an inner cladding of the steel strip; 17. a rubber inner protective layer; 18. a polyvinyl chloride flame retardant layer.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
The embodiment of the utility model discloses a shielding type power cable.
The utility model provides a shielding type power cable shown in figures 1, 2 and 3, which comprises a tensile steel wire shaft 1, a rubber outer protective layer 2, a high fiber outer protective layer 3 and a wire core main body, wherein the rubber outer protective layer 2 and the high fiber outer protective layer 3 are arranged on the tensile steel wire shaft 1, the wire core main body surrounds the tensile steel wire shaft 1, flexible clamping strips 5 which are arranged at equal intervals are fixedly arranged on the inner side of the high fiber outer protective layer 3, the flexible clamping strips 5 are distributed in an annular array around the tensile steel wire shaft 1, shaping rings 6 which are arranged at equal intervals are fixedly arranged on the inner side of the flexible clamping strips 5, clamping grooves 7 are formed in the outer side of the shaping rings 6, and positioning holes 8 are formed in the shaping rings 6.
When the cable is used, the tensile strength of the tensile steel wire shaft 1 formed by twisting a plurality of steel wires is beneficial to inhibiting wire breakage and wire breakage due to the traditional copper inner core of the cable, the clamping grooves 7 on the shaping ring 6 and the flexible clamping strips 5 are clamped, the tensile steel wire shaft 1 passes through the positioning holes 8, the wire core main body passes through the wire core holes 9 in the shaping ring 6 around the tensile steel wire shaft 1, the cable center is positioned by pulling the tensile steel wire shaft 1, the position of the wire core main body on the shaping ring 6 is limited, the wire core holes 9 on the shaping ring 6 are distributed around the tensile steel wire shaft 1, the bending resistance and the stability of the whole cable are improved, the number of the wire core holes 9 on the shaping ring 6 is not limited, different numbers of models can be selected according to use requirements, and the wire core holes 9 are distributed around the positioning holes 8.
In order to ensure the appearance, as shown in fig. 2 and 3, the clamping groove 7 is mutually matched with the shaping ring 6, the outer side of the positioning hole 8 is provided with wire core holes 9, the wire core holes 9 are distributed in an annular array around the positioning hole 8, and the tensile steel wire shaft 1 penetrates through the whole positioning hole 8.
When the cable is used, the tensile steel wire shaft 1 and the cable core main body respectively penetrate through the locating holes 8 and the cable core holes 9 on the shaping ring 6, and the angle between the tensile steel wire shaft 1 and the cable main body and between the tensile steel wire shaft 1 and the cable main body is always on the same horizontal plane due to the limitation of the shaping ring 6 which is arranged at equal intervals in the cable, so that the cable is effectively prevented from being bent integrally.
In order to prevent cracking, as shown in fig. 1, 2 and 5, the outer side of the tensile steel wire shaft 1 is provided with a rubber outer protection layer 2, the outer side of the rubber outer protection layer 2 is fixedly provided with a silica gel wave layer 4, the surface of the silica gel wave layer 4 is provided with a concave-convex shape, one side of the rubber outer protection layer 2, which is away from the silica gel wave layer 4, is provided with a high fiber outer wrapping layer 3, the high fiber outer wrapping layer 3 is in a cross shape, two ends of the rubber outer protection layer 2 are fixedly provided with embedded joints 10, and one end of each embedded joint 10 is fixedly connected with a cable main body.
When using, wrap up the cable through rubber outer cover layer 2, can prevent effectively that external environment from influencing cable transmission, high fiber outer cover layer 3 and silica gel wave form layer 4 are comparatively strong in the temperature variation when cable, can carry out the deformation of expend with heat and contract with cold in certain degree, prevent effectively that cable crust and inside from appearing the crackle, connect through embedded joint 10 between the cable, embedded can effectively avoid external environment to influence, reduce the probability that leads to the fact cable transmission failure because of embedded joint 10 takes place the short circuit.
In order to improve the safety, as shown in fig. 2, the inner side of the high fiber outer cladding 3 is provided with an insulating shielding layer 11, and an insulating filling layer 12 is filled between the shaping rings 6 and the inner side of the insulating shielding layer 11.
When the cable is used, when the cable is broken, the leaked current is discharged along the grounding of the insulating shielding layer 11, and the gap inside the cable can be filled through the insulating filling layer 12, so that the use safety is protected.
Finally, in order to improve reliability, as shown in fig. 2 and 4, the cable main body includes a galvanized steel wire core 13, a thermoplastic rubber tube 14 is fixedly connected to the outer side of the galvanized steel wire core 13, a copper strip inner shielding layer 15 is fixedly connected to the surface of the thermoplastic rubber tube 14, a steel strip inner cladding layer 16 is arranged on the surface of the copper strip inner shielding layer 15, a rubber inner protection layer 17 is wrapped on the outer side of the steel strip inner cladding layer 16, and a polyvinyl chloride flame retardant layer 18 is sprayed on the surface of the rubber inner protection layer 17.
When the cable is used, the efficiency of power transmission is guaranteed through the galvanized steel wire core 13, the galvanized steel wire core 13 is isolated from the copper strip inner shielding layer 15 through the thermoplastic rubber tube 14, the galvanized steel wire core 13 is prevented from heating and directly contacting with the copper strip inner shielding layer 15 to damage the copper strip inner shielding layer 15, the electromagnetic field inside the cable can be effectively prevented from leaking through the copper strip inner shielding layer 15, the copper strip inner shielding layer 15 is tightly fixed through the steel strip inner cladding 16, the loose wrapping structure of the copper strip inner shielding layer 15 is prevented, the torsion resistance of the cable core main body is improved, the cable has excellent high temperature resistance and insulativity, the flame retardance and insulativity of the cable main body are guaranteed, and the reliability of the cable is improved.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (7)
1. The utility model provides a shielding type power cable, includes tensile steel wire shaft (1), sets up rubber outer protective layer (2) and high fiber surrounding layer (3) at tensile steel wire shaft (1), around the sinle silk main part at tensile steel wire shaft (1), its characterized in that, flexible card strip (5) of equidistance range are installed to the inboard fixed mounting of high fiber surrounding layer (3), flexible card strip (5) are annular array around tensile steel wire shaft (1) and distribute, the inboard fixed mounting of flexible card strip (5) has shaping ring (6) of equidistance range, draw-in groove (7) have been seted up in the outside of shaping ring (6), locating hole (8) have still been seted up to the inside of shaping ring (6).
2. The shielded power cable according to claim 1, wherein the clamping groove (7) is mutually matched with the shaping ring (6), a wire core hole (9) is formed in the outer side of the positioning hole (8), the wire core holes (9) are distributed in an annular array around the positioning hole (8), and the tensile steel wire shaft (1) penetrates through the whole positioning hole (8).
3. The shielded power cable according to claim 1, wherein a rubber outer protection layer (2) is arranged on the outer side of the tensile steel wire shaft (1), a silica gel waveform layer (4) is fixedly arranged on the outer side of the rubber outer protection layer (2), the surface of the silica gel waveform layer (4) is provided with concave-convex shapes, a high-fiber outer wrapping layer (3) is arranged on one side, deviating from the silica gel waveform layer (4), of the rubber outer protection layer (2), and the high-fiber outer wrapping layers (3) are in a cross shape.
4. Shielded power cable according to claim 1, characterized in that the inside of the high-fiber outer covering (3) is provided with an insulating shielding layer (11), the inside of the insulating shielding layer (11) being filled with an insulating filling layer (12) between the shaping rings (6).
5. A shielded power cable according to claim 3, wherein the rubber outer protective layer (2) is fixedly provided with a built-in connector (10) at both ends, and one end of the built-in connector (10) is fixedly connected with a cable body.
6. The shielded power cable according to claim 5, wherein the cable body comprises a galvanized steel wire core (13), a thermoplastic rubber tube (14) is fixedly connected to the outer side of the galvanized steel wire core (13), and a copper strip inner shielding layer (15) is fixedly connected to the surface of the thermoplastic rubber tube (14).
7. The shielded power cable according to claim 6, wherein the surface of the copper strip inner shielding layer (15) is provided with a steel strip inner cladding layer (16), the outer side of the steel strip inner cladding layer (16) is wrapped with a rubber inner protection layer (17), and the surface of the rubber inner protection layer (17) is sprayed with a polyvinyl chloride flame-retardant layer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322191844.6U CN220553312U (en) | 2023-08-15 | 2023-08-15 | Shielded power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322191844.6U CN220553312U (en) | 2023-08-15 | 2023-08-15 | Shielded power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220553312U true CN220553312U (en) | 2024-03-01 |
Family
ID=90009218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322191844.6U Active CN220553312U (en) | 2023-08-15 | 2023-08-15 | Shielded power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220553312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118299110A (en) * | 2024-05-15 | 2024-07-05 | 济南圣通电力线缆有限公司 | High-strength tensile high-voltage cable |
-
2023
- 2023-08-15 CN CN202322191844.6U patent/CN220553312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118299110A (en) * | 2024-05-15 | 2024-07-05 | 济南圣通电力线缆有限公司 | High-strength tensile high-voltage cable |
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