CN221149706U - High flame-retardant insulated wire and cable - Google Patents
High flame-retardant insulated wire and cable Download PDFInfo
- Publication number
- CN221149706U CN221149706U CN202322457423.3U CN202322457423U CN221149706U CN 221149706 U CN221149706 U CN 221149706U CN 202322457423 U CN202322457423 U CN 202322457423U CN 221149706 U CN221149706 U CN 221149706U
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- China
- Prior art keywords
- retardant
- insulating sleeve
- protective insulating
- outer protective
- flame
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Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 100
- 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 74
- 238000009413 insulation Methods 0.000 claims abstract description 56
- 230000001681 protective effect Effects 0.000 claims abstract description 49
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 239000000779 smoke Substances 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 9
- 229920000098 polyolefin Polymers 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
- 238000003618 dip coating Methods 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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- 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
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- Insulated Conductors (AREA)
Abstract
The utility model belongs to the field of cables, in particular to a high-flame-retardance insulated wire cable, which comprises an outer protective insulating sleeve; the outer protective insulating sleeve is in a cylindrical design, three groups of cable cores are arranged in the outer protective insulating sleeve, the three groups of cable cores are circumferentially arrayed in the outer protective insulating sleeve, and a thermal insulation mechanism is arranged in the outer protective insulating sleeve; the thermal insulation mechanism comprises a separation frame, the separation frame is fixedly connected with the inner wall of the outer protective insulating sleeve, the section of the separation frame is in a triangle star design, and a first thermal insulation layer is arranged on one side, close to the cable core, of the separation frame. According to the utility model, through the structural design of the separation frame, the first heat preservation layer and the flame retardant, a plurality of groups of cable cores are separated, direct contact is avoided, and simultaneously, gaps around the cable cores are filled with the flame retardant to play a role in flame retardance and buffering, so that the problem that the flame retardant cannot effectively isolate high temperature by dip-coating the flame retardant in the prior art is solved, and the effect of the flame retardant is deteriorated for a long time.
Description
Technical Field
The utility model relates to the field of cables, in particular to a high-flame-retardance insulated wire cable.
Background
Typically a rope-like cable of twisted wires of several or groups of at least two wires, each group being insulated from each other and often twisted around a centre, the whole being covered with a highly insulating coating, the cable having the characteristics of inner energizing, outer insulation.
According to a fire-retardant cold-resistant cable of China patent publication No. CN214428373U, including four wires, still include the center body, the wire includes the guide core and winds the insulating layer of package in the guide core outside, the insulating layer is fan-shaped, the center body is rhombus, four the wire fastener is established the center body four sides, and four the wire splice into circularly, adjacent two the contact surface interlock of insulating layer is in the same place, and four wire outsides are wound the shielding layer, the crowded package in shielding layer outside has inner sheath one, a plurality of insulation blocks have been set firmly in inner sheath one outside, a plurality of insulation blocks outside is the arc and is located on same circumference, and the space intussuseption between two adjacent insulation blocks has fire-retardant filler, insulation block and fire-retardant filler outside is wound around package and is had the inner sheath two, the twist a plurality of wire ropes in the inner sheath two outsides, the wire rope outside crowded package has the oversheath, the outer sheath outside dip-coating has fire retardant.
In the prior art, the flame retardant cannot effectively isolate high temperature by dip coating, so that the effect of the flame retardant is poor for a long time, and meanwhile, the cable cannot be buffered, so that when a plurality of groups of cables are subjected to external extrusion force, the cables are easy to damage; therefore, a high flame retardant insulated wire and cable have been proposed for the above problems.
Disclosure of utility model
In order to overcome the defects in the prior art and solve the problems in the prior art, the utility model provides a high-flame-retardance insulated wire and cable.
The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a high flame-retardant insulated wire and cable, which comprises an outer protective insulating sleeve; the outer protective insulating sleeve is in a cylindrical design, three groups of cable cores are arranged in the outer protective insulating sleeve, the three groups of cable cores are circumferentially arrayed in the outer protective insulating sleeve, and a thermal insulation mechanism is arranged in the outer protective insulating sleeve;
The insulation mechanism comprises a separation frame, the separation frame is fixedly connected with the inner wall of the outer protective insulation sleeve, the section of the separation frame is in a triangle star design, a first insulation layer is arranged on one side, close to the cable core, of the separation frame, the first insulation layer is made of soft polyurethane, a second insulation layer is arranged on one side, far away from the first insulation layer, of the cable core, a hollow joint between the first insulation layer and the second insulation layer is filled with flame retardant, the flame retardant abuts against the cable core, and a buffer part is arranged on one side, far away from the cable core, of the second insulation layer.
Preferably, the buffer member comprises three groups of buffer layers, the three groups of buffer layers are respectively arranged on one side, far away from the cable core, of the second thermal insulation layer, the buffer layers are used for relieving the impact of the outside on the cable core, and the buffer layers are made of polyurethane.
Preferably, a flame-retardant layer is arranged on the outer side of the outer protective insulating sleeve, and the inside of the flame-retardant layer is matched with the diameter of the outer protective insulating sleeve.
Preferably, a plurality of groups of bending grooves are formed in the outer side of the flame retardant layer, and the sections of the bending grooves are triangular.
Preferably, a connecting ring is arranged outside the flame retardant layer, and a clamping ring is fixedly connected to the outer side of the connecting ring.
Preferably, the flame-retardant layer is made of low-smoke halogen-free flame-retardant polyolefin, and the flame-retardant material is also made of low-smoke halogen-free flame-retardant polyolefin.
The utility model has the advantages that:
According to the utility model, through the structural design of the separation frame, the first heat preservation layer and the flame retardant, a plurality of groups of cable cores are separated, direct contact is avoided, and simultaneously, gaps around the cable cores are filled with the flame retardant to play a role in flame retardance and buffering, so that the problems that in the prior art, high temperature cannot be effectively isolated by dip-coating the flame retardant alone, the effect of the flame retardant is poor for a long time, meanwhile, the cable cannot be buffered are solved, and the multifunction of the device is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of a partial perspective structure of the present utility model;
FIG. 3 is a schematic view of the outer protective insulating jacket, cable core and spacer structure of the present utility model;
FIG. 4 is a schematic view of the first thermal layer, second thermal layer and flame retardant structure of the present utility model;
FIG. 5 is a schematic cross-sectional view of a flame retardant layer according to the present utility model.
In the figure: 1. an outer protective insulating sleeve; 2. a cable core; 3. a separation frame; 4. a first thermal insulation layer; 5. a second thermal layer; 6. a flame retardant; 7. a buffer layer; 8. a flame retardant layer; 9. a bending groove; 10. a connecting ring; 11. and a collar.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, a high flame retardant insulated wire and cable includes an outer protective insulating sheath 1; the outer protective insulating sleeve 1 is in a cylindrical design, three groups of cable cores 2 are arranged in the outer protective insulating sleeve 1, the three groups of cable cores 2 are circumferentially arrayed in the outer protective insulating sleeve 1, and a heat preservation mechanism is arranged in the outer protective insulating sleeve 1;
The insulation mechanism comprises a separation frame 3, the separation frame 3 is fixedly connected with the inner wall of an outer protective insulating sleeve 1, the section of the separation frame 3 is in a triangular star design, a first insulation layer 4 is arranged on one side, close to a cable core 2, of the separation frame 3, the first insulation layer 4 is made of soft polyurethane, a second insulation layer 5 is arranged on one side, far away from the first insulation layer 4, of the cable core 2, a gap between the first insulation layer 4 and the second insulation layer 5 is filled with a flame retardant 6, the flame retardant 6 is in contact with the cable core 2, and a buffer piece is arranged on one side, far away from the cable core 2, of the second insulation layer 5;
During operation, among the prior art, singly lean on the unable effectual isolated high temperature of dip-coating fire retardant, in the long run, the effect of fire retardant is worsened, simultaneously also unable effect to play the buffering to the cable, this just makes when many groups of cables receive external extrusion force, the condition of damage appears easily, and this embodiment is when using, separate the frame 3 with three groups cable core 2 and separate, avoided three groups cable core 2 to be close to when receiving the extrusion and make its surface impaired, separate simultaneously and set up the fire-retardant that can let its surface receive and keep warm more comprehensive, it is better to decoct up, and the setting of first thermal-insulation layer 4 can keep warm to the inside temperature of outer insulation cover 1, make its inside temperature heat dissipation slower, avoided outer insulation cover 1 and cable core 2 to be in cold external circumstances under, its inside temperature can drop rapidly, and then influence holistic guarantee replacement effect, can't play cold-resistant effect, simultaneously second thermal-insulation layer 5 can cooperate first thermal-insulation layer 4 with second layer 5 fully surround, the effect is better, the setting of fire-retardant thing 6 can not be to make the cable 2 and keep warm core 2 can take place the effect when the thermal-insulation cover is cold, the thermal-insulation cover 2 is different to the thermal-insulation cover 2 is taken place, simultaneously, the thermal-insulation layer is 2 can be taken place to the thermal-insulation, the thermal-insulation piece is different from the effect is different to the thermal-insulation piece is 2 when the thermal-insulation piece is taken place, the thermal-insulating cable is 2 is different when the thermal-insulating cable is inside when the thermal-insulating, the cable is inside 2 is inside when the thermal-insulating, the thermal-insulating cable is used, and the internal-insulating, and the thermal-insulating cable is used, and can be compressed down and the life.
Further, as shown in fig. 2 and fig. 4, the buffer member includes three groups of buffer layers 7, the three groups of buffer layers 7 are respectively installed at one side of the second thermal insulation layer 5 away from the cable core 2, the buffer layers 7 are used for buffering the impact of the outside on the cable core 2, and the buffer layers 7 are made of polyurethane;
During operation, the outer protective insulating sleeve 1 is loved under the action of the outside, the buffer layer 7 is stressed to deform, the impact force suffered by the cable core 2 is slowed down, and the special material of the buffer layer 7 can also be flame-retardant, so that the condition that the cable core is burnt by fire is avoided.
Further, as shown in fig. 2 and 5, a flame-retardant layer 8 is installed on the outer side of the outer protective insulating sleeve 1, and the inside of the flame-retardant layer 8 is matched with the diameter of the outer protective insulating sleeve 1;
When the flame-retardant insulating sleeve is in operation, the flame-retardant layer 8 can play a flame-retardant role on the outer protective insulating sleeve 1, when a fire contacts the outer protective insulating sleeve 1, the fire-retardant layer 8 is firstly contacted, and the outer protective insulating sleeve 1 can isolate the fire through the flame-retardant layer 8, so that the fire cannot burn to the outer protective insulating sleeve 1 and the internal device.
Further, as shown in fig. 2 and fig. 5, a plurality of groups of bending grooves 9 are formed on the outer side of the flame retardant layer 8, and the cross sections of the plurality of groups of bending grooves 9 are triangular;
During operation, the plurality of groups of bending grooves 9 can conveniently bend the flame-retardant layer 8, when the flame-retardant layer 8 is in a severe cold region, the surface of the flame-retardant layer 8 is in a stiff state, and the 19 can be arranged to be more convenient along the flame-retardant layer 8.
Further, as shown in fig. 2 and 5, a connecting ring 10 is installed on the outer side of the flame retardant layer 8, and a collar 11 is fixedly connected on the outer side of the connecting ring 10;
During operation, the clamping ring 11 can be connected with the flame-retardant layer 8 through the connecting ring 10, and the setting of the clamping ring 11 can conveniently fix the flame-retardant layer 8, the notch of the clamping ring 11 is clamped on an external main cylinder, and the fixation of the outer protective insulating sleeve 1 can be completed.
Further, as shown in fig. 2 and fig. 4, the flame retardant layer 8 is made of low-smoke halogen-free flame retardant polyolefin, and the flame retardant 6 is made of low-smoke halogen-free flame retardant polyolefin;
When the cable is in operation, the flame retardant 6 and the flame retardant layer 8 are made of low-smoke halogen-free flame retardant polyolefin, and the flame retardant layer has the advantages of good flame retardant effect, low smoke, no toxicity and the like, and is more suitable for protecting the cable.
In the prior art, the working principle is that the fire retardant cannot be effectively insulated at high temperature by dip-coating, so that the effect of the fire retardant is poor, and meanwhile, the buffer effect cannot be achieved on cables, so that when a plurality of groups of cables are subjected to external extrusion force, the damage is easy to occur, and when the cable is used, the three groups of cable cores 2 are separated by the separation frame 3, the situation that the surfaces of the three groups of cable cores 2 are damaged due to approaching the three groups of cable cores 2 when being extruded is avoided, meanwhile, the fire retardation and the heat preservation borne by the surfaces of the three groups of cable cores 2 are more comprehensive and better after the three groups of cable cores are separated, the first heat preservation layer 4 can preserve the temperature inside the outer protective insulating sleeve 1, the heat dissipation of the temperature inside the outer protective insulating sleeve 1 and the cable cores 2 is slower, the temperature inside the outer protective insulating sleeve 1 and the cable cores 2 are prevented from being in cold environment, so that the temperature inside the outer protective insulating sleeve can be rapidly reduced, and the whole guarantee replacement effect is further influenced, the cold-resistant effect cannot be achieved, the second thermal insulation layer 5 can be matched with the first thermal insulation layer 4 to completely surround the second thermal insulation layer 5, the thermal insulation effect is better, the flame retardant 6 can not only play a role in flame retarding the cable core 2, but also fill gaps around the cable core 2, the condition that the cable core 2 shakes inside the outer protective insulating sleeve 1 is avoided, meanwhile, when the cable core is extruded by the outside, the flame retardant 6 can be stressed to deform and simultaneously slow down the impact force to be transmitted to the cable core 2, the connecting piece can be matched with the flame retardant 6 to play a double buffering role, the outer protective insulating sleeve 1 is stressed by the outside, the buffer layer 7 is stressed to deform and slow down the impact force to which the cable core 2 is stressed, the special material of the buffer layer 7 can also be flame retardant, the condition that the cable core 2 burns is avoided, the flame retardant layer 8 can play a role in flame retarding the outer protective insulating sleeve 1, when the fire contacts the outer protective insulating sleeve 1, the fire-retardant layer 8 can be contacted at first, and the outer protective insulating sleeve 1 can isolate the fire through the fire-retardant layer 8, so that the fire can not burn to the outer protective insulating sleeve 1 and the internal device, the plurality of groups of bending grooves 9 can conveniently bend the fire-retardant layer 8, when the fire-retardant insulating sleeve is in a severe cold region, the surface of the fire-retardant layer 8 can be in a stiff state, the 19 can be more convenient when the fire-retardant insulating sleeve is in the fire-retardant layer 8, the clamping ring 11 can be connected with the fire-retardant layer 8 through the connecting ring 10, the setting of the clamping ring 11 can conveniently fix the fire-retardant layer 8, the notch of the clamping ring 11 is clamped on an external main cylinder, the fixation of the outer protective insulating sleeve 1 can be completed, and the fire-retardant substance 6 and the fire-retardant layer 8 are made of low-smoke halogen-free flame-retardant polyolefin materials, and the materials have the advantages of good flame-retardant effect, low smoke, no toxicity and the like, and are more suitable for protecting cables.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. A high flame-retardant insulated wire and cable is characterized in that: comprises an outer protective insulating sleeve (1); the outer protective insulating sleeve (1) is in a cylindrical design, three groups of cable cores (2) are arranged inside the outer protective insulating sleeve (1), the three groups of cable cores (2) are arranged inside the outer protective insulating sleeve (1) in a circumferential array, and a thermal insulation mechanism is arranged inside the outer protective insulating sleeve (1);
The thermal insulation mechanism comprises a separation frame (3), the separation frame (3) is fixedly connected with the inner wall of an outer protective insulating sleeve (1), the cross section of the separation frame (3) is in a triangle star design, a first thermal insulation layer (4) is installed on one side, close to a cable core (2), of the separation frame (3), the first thermal insulation layer (4) is made of soft polyurethane, a second thermal insulation layer (5) is installed on one side, far away from the first thermal insulation layer (4), of the cable core (2), a fire retardant (6) is filled in a gap between the first thermal insulation layer (4) and the second thermal insulation layer (5), the fire retardant (6) is in contact with the cable core (2), and a buffer part is arranged on one side, far away from the cable core (2), of the second thermal insulation layer (5).
2. A high flame retardant insulated wire and cable according to claim 1, wherein: the buffer piece comprises three groups of buffer layers (7), the three groups of buffer layers (7) are respectively arranged on one side, far away from the cable core (2), of the second thermal insulation layer (5), the buffer layers (7) are used for relieving the impact of the outside on the cable core (2), and the buffer layers (7) are made of polyurethane.
3. A high flame retardant insulated wire and cable according to claim 2, wherein: the outer side of the outer protective insulating sleeve (1) is provided with a flame-retardant layer (8), and the inside of the flame-retardant layer (8) is matched with the diameter of the outer protective insulating sleeve (1).
4. A high flame retardant insulated wire and cable according to claim 3, wherein: the outer side of the flame-retardant layer (8) is provided with a plurality of groups of bending grooves (9), and the sections of the groups of bending grooves (9) are triangular.
5. A high flame retardant insulated wire and cable according to claim 4, wherein: the connecting ring (10) is arranged on the outer side of the flame-retardant layer (8), and a clamping ring (11) is fixedly connected on the outer side of the connecting ring (10).
6. A high flame retardant insulated wire and cable according to claim 5, wherein: the flame-retardant layer (8) is made of low-smoke halogen-free flame-retardant polyolefin, and the flame retardant substance (6) is made of low-smoke halogen-free flame-retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322457423.3U CN221149706U (en) | 2023-09-08 | 2023-09-08 | High flame-retardant insulated wire and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322457423.3U CN221149706U (en) | 2023-09-08 | 2023-09-08 | High flame-retardant insulated wire and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221149706U true CN221149706U (en) | 2024-06-14 |
Family
ID=91431238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322457423.3U Active CN221149706U (en) | 2023-09-08 | 2023-09-08 | High flame-retardant insulated wire and cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221149706U (en) |
-
2023
- 2023-09-08 CN CN202322457423.3U patent/CN221149706U/en active Active
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