CN222088331U - Silicon rubber flame-retardant variable-frequency cable - Google Patents
Silicon rubber flame-retardant variable-frequency cable Download PDFInfo
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- CN222088331U CN222088331U CN202420228959.XU CN202420228959U CN222088331U CN 222088331 U CN222088331 U CN 222088331U CN 202420228959 U CN202420228959 U CN 202420228959U CN 222088331 U CN222088331 U CN 222088331U
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- flame
- retardant
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 80
- 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 title claims abstract description 77
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 30
- 239000004945 silicone rubber Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims description 24
- 239000000919 ceramic Substances 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000003365 glass fiber Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
本实用新型公开了硅橡胶阻燃变频电缆，包括线芯、阻燃包带、屏蔽套、阻燃外护套和阻燃填充部，所述阻燃包带缠绕在线芯之外，所述屏蔽套同轴套设在阻燃包带之外，所述阻燃外护套同轴套设在屏蔽套，所述阻燃填充部填充在位于线芯与阻燃包带之间的缝隙内。本实用新型通过在线芯之外依次包覆或同轴套设阻燃包带、屏蔽套和阻燃外护套，又在位于线芯与阻燃包带之间的缝隙内设置阻燃填充部，可在不影响电气性能的前提下，有效提高电缆的阻燃性，使电缆能够通过GB/T 19666‑2019的成束A类燃烧试验。
The utility model discloses a silicone rubber flame-retardant frequency conversion cable, comprising a wire core, a flame-retardant tape, a shielding sleeve, a flame-retardant outer sheath and a flame-retardant filling part, wherein the flame-retardant tape is wound outside the wire core, the shielding sleeve is coaxially sleeved outside the flame-retardant tape, the flame-retardant outer sheath is coaxially sleeved inside the shielding sleeve, and the flame-retardant filling part is filled in the gap between the wire core and the flame-retardant tape. The utility model can effectively improve the flame retardancy of the cable without affecting the electrical performance by sequentially coating or coaxially sleeved the flame-retardant tape, the shielding sleeve and the flame-retardant outer sheath outside the wire core, and arranging the flame-retardant filling part in the gap between the wire core and the flame-retardant tape, so that the cable can pass the bundled Class A combustion test of GB/T 19666‑2019.
Description
[ Field of technology ]
The utility model relates to the technical field of cables, in particular to the technical field of a silicon rubber flame-retardant variable-frequency cable.
[ Background Art ]
The silicon rubber cable, such as the shielding type matte silicon rubber cable disclosed in the invention patent with publication number CN102956312A and the tearing-resistant silicon rubber cable disclosed in the invention patent with publication number CN115762879A, has the characteristics of heat radiation resistance, cold resistance, acid and alkali resistance, corrosive gas resistance, water resistance and the like, is soft in structure (has better bending property), can keep stable electrical performance in high temperature or high and cold environment, has outstanding ageing resistance (long service life), is very suitable for being used as a power transmission line for fixed laying or a connecting cable for mobile electrical appliances with alternating current rated voltage of 0.6/1kV or below, and is widely used in industries such as metallurgy, metal processing, petrochemical industry, railway, food processing and the like.
However, silicone rubber generally has flame retardancy that cracks to form a low molecular weight cyclic polysiloxane when heated to a temperature and burns in the presence of oxygen to form hydrogen, carbon monoxide, carbon dioxide, methane, silica and other inorganic fillers. The range of applications of silicone rubber cables is still limited due to the poor flame retardancy of silicone rubber.
[ utility model ]
The utility model aims to solve the problems in the prior art and provides a silicon rubber flame-retardant variable frequency cable which has better high temperature resistance, oxidation resistance and flame retardance.
In order to achieve the above purpose, the utility model provides a silicone rubber flame-retardant variable frequency cable, which comprises a wire core, a flame-retardant wrapping tape, a shielding sleeve, a flame-retardant outer sheath and a flame-retardant filling part, wherein the flame-retardant wrapping tape is wound outside the wire core, the shielding sleeve is coaxially sleeved outside the flame-retardant wrapping tape, the flame-retardant outer sheath is coaxially sleeved on the shielding sleeve, and the flame-retardant filling part is filled in a gap between the wire core and the flame-retardant wrapping tape.
Preferably, the wire core is formed by mutually twisting a plurality of main wires and auxiliary wires, the main wires comprise main conductors and main insulating sleeves, the main conductors are mutually twisted to form a main conductive core, the main insulating sleeves are coaxially sleeved outside the main conductive core, the auxiliary wires comprise auxiliary conductors and auxiliary insulating sleeves, the auxiliary conductors are mutually twisted to form an auxiliary conductive core, and the auxiliary insulating sleeves are coaxially sleeved outside the auxiliary conductive core.
Preferably, the main conductor and the auxiliary conductor are tin-plated copper guide wires, and the main insulating sleeve and the auxiliary insulating sleeve are polyvinyl chloride sleeves, polyethylene sleeves or polypropylene sleeves.
Preferably, the flame-retardant filling part comprises a glass fiber rope and a ceramic silica gel part, wherein a plurality of glass fiber ropes are twisted together with each main electric wire and each auxiliary electric wire to be filled in the middle of the gap, and the ceramic silica gel part is filled at the periphery of the gap.
Preferably, the flame-retardant wrapping tape is a fire-resistant mica tape or a ceramic silicon rubber composite tape, and the wrapping overlapping rate is controlled to be 45-55%.
Preferably, the shielding sleeve is a double-layer composite sleeve, the ethylene propylene rubber sleeve is positioned at the inner side of the shielding sleeve, and the copper woven sleeve is positioned at the outer side of the shielding sleeve.
Preferably, the flame-retardant outer sheath is a vulcanized silicone rubber sleeve.
Preferably, the cable further comprises monitoring wires, and a plurality of the monitoring wires are respectively arranged between the flame-retardant wrapping belt and the shielding sleeve and/or between the shielding sleeve and the flame-retardant outer sheath.
The utility model has the beneficial effects that:
1) The flame-retardant wrapping tape, the shielding sleeve and the flame-retardant outer sheath are sequentially coated or coaxially sleeved outside the wire core, and the flame-retardant filling part is arranged in a gap between the wire core and the flame-retardant wrapping tape, so that the flame retardance of the cable can be effectively improved on the premise of not affecting the electrical performance, and the cable can pass a bunched A type combustion test of GB/T19666-2019;
2) By adopting the glass fiber ropes and the ceramic silica gel part as the flame-retardant filling parts, a plurality of glass fiber ropes are twisted together along with each main wire and each auxiliary wire of the wire core to be filled in the middle of the gap, and the ceramic silica gel part is filled at the periphery of the gap, so that the inside of the cable has better flame resistance, and the tensile property of the cable can be effectively improved;
3) By adding a plurality of monitoring wires between the flame-retardant wrapping belt and the shielding sleeve and/or between the shielding sleeve and the flame-retardant outer sheath, the on-off state of each monitoring wire can be utilized to judge that the fire is spread to the specific depth of the cable, so that a user can decide whether to immediately cut off the power or to enable the cable to work for a period of time again according to actual conditions until important information is transmitted.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
[ Description of the drawings ]
FIG. 1 is a cross-sectional view of a first embodiment;
fig. 2 is a cross-sectional view of the second embodiment.
In the figure, a 1-wire core, a 11-main conductor, a 12-main insulating sleeve, a 13-auxiliary conductor, a 14-auxiliary insulating sleeve, a 2-flame-retardant wrapping tape, a 3-shielding sleeve, a 4-flame-retardant outer sheath, a 5-flame-retardant filling part, a 51-glass fiber rope, a 52-ceramic silica gel part and a 6-monitoring wire are arranged.
[ Detailed description ] of the invention
Embodiment one:
Referring to fig. 1, the silicone rubber flame-retardant variable-frequency cable comprises a cable core 1, a flame-retardant wrapping tape 2, a shielding sleeve 3, a flame-retardant outer sheath 4 and a flame-retardant filling part 5, wherein the flame-retardant wrapping tape 2 is wound outside the cable core 1, the shielding sleeve 3 is coaxially sleeved outside the flame-retardant wrapping tape 2, the flame-retardant outer sheath 4 is coaxially sleeved on the shielding sleeve 3, and the flame-retardant filling part 5 is filled in a gap between the cable core 1 and the flame-retardant wrapping tape 2.
The wire core 1 is formed by mutually twisting a plurality of main wires and auxiliary wires, each main wire comprises a main conductor 11 and a main insulating sleeve 12, a plurality of main conductors 11 are mutually twisted to form a main core, the main insulating sleeves 12 are coaxially sleeved outside the main core, each auxiliary wire comprises an auxiliary conductor 13 and an auxiliary insulating sleeve 14, a plurality of auxiliary conductors 13 are mutually twisted to form an auxiliary conductive core, and the auxiliary insulating sleeves 14 are coaxially sleeved outside the auxiliary conductive core.
The main conductor 11 and the auxiliary conductor 13 are tin-plated copper guide wires, and the main insulating sleeve 12 and the auxiliary insulating sleeve 14 are polyvinyl chloride sleeves. Among them, a tin-plated copper wire having excellent oxidation resistance is used as the main conductor 11 and the sub-conductor 13. By such design, the cable can withstand high temperature and high humidity environments (the main conductor 11 and the auxiliary conductor 13 are not easily corroded and oxidized), and a high current-carrying capacity is maintained for a long time.
The flame-retardant filling part 5 comprises glass fiber ropes 51 and ceramic silica gel parts 52, a plurality of glass fiber ropes 51 are twisted together along with each main electric wire and each auxiliary electric wire so as to fill the middle part of the gap, and the ceramic silica gel parts 52 are filled at the periphery of the gap. By means of the design, the glass fiber ropes 51 and the ceramic silica gel parts 52 can be matched with each other to ensure that the cable has high flame retardance, and meanwhile the tensile capacity of the cable is effectively improved.
The flame-retardant wrapping tape 2 is a ceramic silicon rubber composite tape, and the wrapping overlapping rate is controlled to be 50%. By the design, the ceramic silicon rubber composite belt has good flame retardant effect, and waste of the ceramic silicon rubber composite belt is avoided. In addition, the ceramic silicon rubber composite belt can form a self-supporting ceramic body in flame to block oxygen, and simultaneously generate moisture to absorb heat, so that the purposes of preventing flame from spreading and self-extinguishing are achieved.
The shielding sleeve 3 is a double-layer composite sleeve, an ethylene propylene rubber sleeve is positioned at the inner side of the shielding sleeve 3, and a copper woven sleeve is positioned at the outer side of the shielding sleeve 3. The double-layer shielding design can ensure that the conveying work of the cable is normally carried out.
The flame-retardant outer sheath 4 is a vulcanized silicone rubber sleeve. The vulcanized silicone rubber sleeve is generally formed by mixing and refining raw materials such as silicone rubber, vulcanizing agent, colorant and the like, can resist the high temperature of 180 ℃, and can greatly improve the high temperature resistance of the cable when being extruded and processed to the surface of the cable.
Embodiment two:
Referring to fig. 2, the cable further comprises monitoring wires 6, and a plurality of monitoring wires 6 are respectively arranged between the flame-retardant wrapping tape 2 and the shielding sleeve 3 and between the shielding sleeve 3 and the flame-retardant outer sheath 4.
Other embodiments are the same as the first embodiment.
During operation, if each monitoring wire 6 is normally conducted, the normal working environment of the cable is indicated, if part or all of the monitoring wires 6 between the shielding sleeve 3 and the flame-retardant outer sheath 4 are disconnected, the flame-retardant outer sheath 4 is indicated to be burnt, and if part or all of the monitoring wires 6 between the flame-retardant wrapping tape 2 and the shielding sleeve 3 are disconnected, the shielding sleeve 3 is indicated to be burnt. The user can judge the burnt condition of the cable according to the on-off condition of the monitoring wires 6 at different positions so as to make corresponding measures.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (7)
1. The silicone rubber flame-retardant variable-frequency cable is characterized by comprising a wire core (1), a flame-retardant wrapping tape (2), a shielding sleeve (3), a flame-retardant outer sheath (4) and a flame-retardant filling part (5), wherein the flame-retardant wrapping tape (2) is wound outside the wire core (1), the shielding sleeve (3) is coaxially sleeved outside the flame-retardant wrapping tape (2), the flame-retardant outer sheath (4) is coaxially sleeved outside the shielding sleeve (3), the flame-retardant filling part (5) is filled in a gap between the wire core (1) and the flame-retardant wrapping tape (2), and the flame-retardant wrapping tape (2) is a flame-retardant mica tape or a ceramic silicone rubber composite tape and the wrapping overlapping rate is controlled to be 45-55%.
2. The silicone rubber flame-retardant variable frequency cable as set forth in claim 1, wherein the core (1) is formed by mutually twisting a plurality of main wires and auxiliary wires, the main wires comprise main conductors (11) and main insulating sleeves (12), the plurality of main conductors (11) are mutually twisted to form a main core, the main insulating sleeves (12) are coaxially sleeved outside the main core, the auxiliary wires comprise auxiliary conductors (13) and auxiliary insulating sleeves (14), the plurality of auxiliary conductors (13) are mutually twisted to form auxiliary conductive cores, and the auxiliary insulating sleeves (14) are coaxially sleeved outside the auxiliary conductive cores.
3. The flame-retardant variable frequency cable of claim 2, wherein the main conductor (11) and the auxiliary conductor (13) are tin-plated copper guide wires, and the main insulating sleeve (12) and the auxiliary insulating sleeve (14) are polyvinyl chloride sleeves, polyethylene sleeves or polypropylene sleeves.
4. The silicone rubber flame-retardant variable frequency cable as set forth in claim 2, wherein the flame-retardant filling part (5) comprises glass fiber ropes (51) and ceramic silica gel parts (52), a plurality of the glass fiber ropes (51) are twisted together with each main electric wire and each auxiliary electric wire to fill the middle part of the gap, and the ceramic silica gel parts (52) are filled at the periphery of the gap.
5. The silicon rubber flame-retardant variable frequency cable as claimed in claim 1, wherein the shielding sleeve (3) is a double-layer composite sleeve, the ethylene propylene rubber sleeve is positioned at the inner side of the shielding sleeve (3), and the copper woven sleeve is positioned at the outer side of the shielding sleeve (3).
6. The silicone rubber flame-retardant variable frequency cable as set forth in claim 1, wherein the flame-retardant outer sheath (4) is a vulcanized silicone rubber sleeve.
7. The silicone rubber flame-retardant variable frequency cable as set forth in any one of claims 1 to 6, further comprising monitoring wires (6), wherein a plurality of the monitoring wires (6) are respectively arranged between the flame-retardant wrapping tape (2) and the shielding sleeve (3) and/or between the shielding sleeve (3) and the flame-retardant outer sheath (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420228959.XU CN222088331U (en) | 2024-01-31 | 2024-01-31 | Silicon rubber flame-retardant variable-frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420228959.XU CN222088331U (en) | 2024-01-31 | 2024-01-31 | Silicon rubber flame-retardant variable-frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222088331U true CN222088331U (en) | 2024-11-29 |
Family
ID=93591127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420228959.XU Active CN222088331U (en) | 2024-01-31 | 2024-01-31 | Silicon rubber flame-retardant variable-frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222088331U (en) |
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2024
- 2024-01-31 CN CN202420228959.XU patent/CN222088331U/en active Active
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