CN214541669U

CN214541669U - Environment-friendly flame-retardant wire

Info

Publication number: CN214541669U
Application number: CN202121081905.8U
Authority: CN
Inventors: 李太敏; 杨永胜; 袁培昉; 常晓琼; 曹永阁
Original assignee: Zhengzhou Shengfu Electric Co ltd
Current assignee: Zhengzhou Shengfu Electric Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-10-29
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to a fire-retardant electric wire of environmental protection, including electric wire one and electric wire two, both all include the conductor sinle silk from inside to outside, the internal flame retardant layer, compound high temperature resistant layer, the external flame retardant layer, the isolation layer, anticorrosive insulation layer and wearing layer, be equipped with aluminium hydroxide fire retardant layer and magnesium hydroxide fire retardant layer between isolation layer and the anticorrosive insulation layer, a tail end of electric wire and two head ends of electric wire all extend one section conductor sinle silk and conductor sinle silk hinge between them are around connecting, the slip cap is equipped with the connector on the tail end of electric wire, connector outside cover is equipped with the clamping sleeve, there is the clearance between clamping sleeve and the connector, the slip cap is equipped with the go-between on two head ends of electric wire, the adapter sleeve has been linked firmly on the go-between front end, there is the clearance between adapter sleeve and the electric wire two, connector front end and go-between rear end have all linked firmly the clamp. The utility model discloses no matter be the electric wire itself or in the junction of electric wire, its anticorrosive, high temperature resistant and fire-retardant performance all improves greatly, can effectively guarantee the normal stability and the safe handling of electric wire.

Description

Environment-friendly flame-retardant wire

Technical Field

The utility model belongs to the technical field of the electric wire, concretely relates to fire-retardant electric wire of environmental protection.

Background

The electric wire is a wire for transmitting electric energy, can effectively conduct current, is simple in structure, and is a cable with a complex structure. The common wire comprises a conductor layer and an insulating layer from inside to outside in sequence, wherein the conductor is a conductive part of the wire and cable, is used for transmitting electric energy and is a main part of the wire and cable; the insulating layer is used for electrically isolating the conductor from the ground and conductors of different phases to ensure electric energy transmission, and is an indispensable component in the structure of the wire and the cable.

In the using process of the electric wire, various adverse environmental factors can be met, and the electric wire can generate heat in the power transmission process, so that the electric wire is required to have special performances of corrosion resistance, flame retardance, high temperature resistance, environmental protection and the like. However, the existing low-smoke halogen-free environment-friendly electric wire is usually only single flame retardant, has poor heat insulation and flame retardant effects, seriously affects the power transmission performance of the inner wire core in a high-temperature environment, is low in cooling speed, and is easy to cause the electric wire to be on fire due to external environmental factors, so that serious safety accidents are caused, and the normal stable work of the electric wire and the life and property safety of people are not facilitated. In addition, when current low smoke and zero halogen environmental protection electric wire was used in the installation, the protection cortex was got rid of earlier to the connection of two adjacent electric wires usually, with the sinle silk transposition back together, reuse electrician's adhesive tape twines the package, and the performance such as anticorrosive, fire-retardant of this kind of mode in the junction is worse, is unfavorable for the normal stable work of electric wire equally, remains to improve.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an environment-friendly flame-retardant electric wire with better performances such as corrosion resistance, flame retardancy, high temperature resistance, etc. to solve the above problems.

In order to achieve the above object, the utility model adopts the following technical scheme: an environment-friendly flame-retardant wire comprises a first wire and a second wire, wherein the first wire and the second wire both sequentially comprise a conductor wire core, an inner flame-retardant layer, a composite high-temperature-resistant layer, an outer flame-retardant layer, an isolation layer, an anticorrosion insulating layer and a wear-resistant layer from inside to outside, the conductor wire core is formed by stranding a plurality of strands of nickel-plated copper wires, a high-temperature-resistant insulating filling layer is arranged between the surfaces of the nickel-plated copper wires, and an aluminum hydroxide flame retardant layer and a magnesium hydroxide flame retardant layer are arranged between the isolation layer and the anticorrosion insulating layer; a section of conductor wire core extends from the first end of the electric wire and the second end of the electric wire, the conductor wire cores of the electric wire and the electric wire are connected in a hinged mode, a connector which is made of the same material as the inner flame-retardant layer and the outer flame-retardant layer is sleeved on the tail end of the wire in a sliding way, the outer wall of the connector is provided with a multi-step conical anti-disengaging tooth, the outer side of the connector is sleeved with a clamping sleeve which is made of the same material as the anticorrosive insulating layer, a gap is formed between the clamping sleeve and the connector, the tail end of the clamping sleeve is opened, the other end of the clamping sleeve is closed and is fixedly connected with the end part of the corresponding connector, the head end of the second electric wire is slidably sleeved with a connecting ring, the front end surface of the connecting ring is fixedly connected with a connecting sleeve which is sleeved outside the second electric wire and has the same material with the composite high-temperature resistant layer, and a gap exists between the connecting sleeve and the second electric wire, the connecting sleeve is inserted into the gap between the clamping sleeve and the connector, and the front end face of the connector and the rear end face of the connecting ring are fixedly connected with a hoop.

Preferably, the high-temperature-resistant insulating filling layer is glass fiber spray cotton, and the inner flame-retardant layer and the outer flame-retardant layer are both polytetrafluoroethylene, fluorinated ethylene propylene copolymer or perfluoroalkoxy vinyl ether copolymer.

Preferably, the composite high-temperature-resistant layer is formed by compounding a silicone rubber layer, a high-temperature-resistant glass fiber layer, a ceramic fiber layer and a polybenzimidazole fiber layer, and the silicone rubber layer, the high-temperature-resistant glass fiber layer, the ceramic fiber layer and the polybenzimidazole fiber layer are tightly attached from inside to outside in sequence.

Preferably, the isolation layer is rock wool.

Preferably, the anticorrosion insulating layer is made of polytetrafluoroethylene, and a plurality of reinforcing steel wires are distributed at intervals inside the anticorrosion insulating layer.

Preferably, the wear-resistant layer is polyurethane.

Preferably, a plurality of scale marks are uniformly distributed on the outer walls of the wear-resistant layers of the first electric wire and the second electric wire at intervals along the length direction of the wear-resistant layers.

Preferably, the gap between the connector and the clamping sleeve is matched with the connector sleeve, and the gap between the connector sleeve and the second electric wire is matched with the connector.

Preferably, a first sealing ring is fixedly arranged in a gap between the connector and the clamping sleeve and clings to the closed end of the clamping sleeve, a second sealing ring is fixedly arranged in a gap between the connecting sleeve and the second electric wire and clings to the connecting ring, and a third sealing ring is fixedly arranged on the outer wall of the connecting sleeve and clings to the connecting ring.

The utility model has the advantages that: the utility model has reasonable design and simple structure, the arrangement of the conductor core twisted by nickel-plated copper wires can greatly enhance the high temperature resistance and corrosion-resistant wear-resistant performance of the whole electric wire while ensuring the electric energy transmission of the electric wire, and the multiple flame-resistant protection formed by the high temperature resistance and electric insulation protection of the high temperature resistance insulation filling layer, the inner flame-resistant layer, the outer flame-resistant layer, the aluminum hydroxide flame-resistant layer and the magnesium hydroxide flame-resistant layer, the multiple high temperature resistance protection of the composite high temperature resistance layer, the heat insulation and cooling function of the isolation layer, the corrosion-resistant and heat-resistant insulation protection of the corrosion-resistant insulation layer and the wear-resistant protection of the wear-resistant layer can greatly improve the flame-resistant performance, the high temperature resistance, the heat insulation and cooling performance and the corrosion-resistant wear-resistant performance of the whole electric wire, can effectively avoid the influence of external high temperature on the conductor core, enhance the stable working capability of the electric wire under high temperature or open flame environment, ensure the normal stability and safe working of the electric wire, the service life of the wire is prolonged.

When the first wire is connected with the second wire end to end, the connector is firstly sleeved on the tail end of the first wire, and the connecting ring is sleeved on the head end of the second wire. And then, the conductor core with the tail end of the wire and the head end of the wire exposed outside is twisted together. And then, the connector is moved to the joint, the tail end of the connector is sleeved on the second electric wire, and the clamp on the connector is locked, so that the connector can be fixed. Then, remove the go-between again, make the adapter sleeve on it be close to and insert in the clearance between connector and the grip housing, peg graft and lock the clamp on the go-between again after target in place, alright make the go-between fixed, this moment, the junction is wrapped up in the connector completely, make the junction form an airtight space, it is sealed reliable, thereby form sealed protection to the junction, including the material of connector with inside, the material of outer flame retardant layer is the same, the material of adapter sleeve is the same with the material of compound high temperature resistant layer and the material of grip housing is the same with the material of anticorrosive insulation layer, thereby can effectively avoid the external environment to the adverse effect such as the corruption of junction, burning, further guarantee the anticorrosive of electric wire junction, performances such as fire-retardant and high temperature resistant, more be favorable to the normal stable safe work of electric wire.

Drawings

Fig. 1 is a schematic longitudinal sectional structure of the present invention;

FIG. 2 is a schematic view of the longitudinal cross-sectional structure of the composite high temperature resistant layer of the present invention;

FIG. 3 is a schematic view of the first wire and the second wire separated according to the present invention;

fig. 4 is a schematic structural diagram of the first electric wire and the second electric wire according to the present invention.

Reference numbers in the figures: 1 is the conductor sinle silk, 2 is high temperature resistant insulating filling layer, 3 is interior flame retardant coating, 4 is compound high temperature resistant layer, 5 is outer flame retardant coating, 6 is the isolation layer, 7 is aluminium hydroxide flame retardant coating, 8 is magnesium hydroxide flame retardant coating, 9 is anticorrosive insulating layer, 10 is the reinforcing steel wire, 11 is the wearing layer, 12 is the silastic-layer, 13 is high temperature resistant glass fiber layer, 14 is the ceramic fiber layer, 15 is the polybenzimidazole fiber layer, 16 is electric wire one, 17 is electric wire two, 18 is the clamp, 19 is the connector, 20 is the anticreep tooth, 21 is the clamp sleeve, 22 is the adapter sleeve, 23 is the go-between, 24 is the scale mark, 25 is first sealing washer, 26 is the second sealing washer, 27 is the third sealing washer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 4, the environment-friendly flame-retardant electric wire comprises a first electric wire 16 and a second electric wire 17, wherein the first electric wire 16 and the second electric wire 17 sequentially comprise a conductor wire core 1, an inner flame-retardant layer 3, a composite high-temperature-resistant layer 4, an outer flame-retardant layer 5, an isolation layer 6, an anticorrosion insulation layer 9 and a wear-resistant layer 11 from inside to outside. The conductor wire core 1 is formed by stranding a plurality of strands of nickel-plated copper wires, has high stability in air and good high-temperature oxidation resistance and corrosion and abrasion resistance, can greatly enhance the high-temperature resistance, corrosion and abrasion resistance of the whole wire, and improves the practicability and service life of the wire. Be equipped with high temperature resistant insulating filling layer 2 between the nickel-plated copper wire surface, can protect the conductor sinle silk once more, improve the high temperature resistant and the electrical insulation performance of electric wire, guarantee the normal stable work of electric wire. The inner flame-retardant layer 3 and the outer flame-retardant layer 5 are both made of polytetrafluoroethylene, fluorinated ethylene propylene copolymer or perfluoroalkoxy vinyl ether copolymer, have excellent flame retardance and acid and alkali resistance, can provide double flame-retardant protection for the whole wire, and can ensure the flame retardance, fire resistance, corrosion resistance and other properties of the whole wire. Still be equipped with aluminium hydroxide fire retardant layer 7 and magnesium hydroxide fire retardant layer 8 between isolation layer 6 and anticorrosive insulation layer 9, aluminium hydroxide and magnesium hydroxide are good fire retardant, can absorb heat when receiving high temperature and decompose and produce water, play good cooling effect to whole electric wire, avoid high temperature to influence the transmission of electricity performance of inner conductor sinle silk 1, with interior flame retardant coating 3 and the holistic fire behaviour of electric wire of outer flame retardant coating 5 cooperation further improvement. In conclusion, the conductor wire core 1 formed by twisting nickel-plated copper wires is matched with the high-temperature-resistant and electric-insulation protection of the high-temperature-resistant insulation filling layer 2, the multiple flame-retardant protection formed by the inner flame-retardant layer 3, the outer flame-retardant layer 5, the aluminum hydroxide flame-retardant layer 7 and the magnesium hydroxide flame-retardant layer 8, the multiple high-temperature-resistant protection of the composite high-temperature-resistant layer 4, the heat-insulation and cooling effects of the isolation layer 6, the corrosion-resistant and heat-resistant insulation protection of the corrosion-resistant insulation layer 9 and the wear-resistant protection of the wear-resistant layer 11, so that the flame-retardant performance, the high-temperature-resistant performance, the heat-insulation and cooling performance and the corrosion-resistant and wear-resistant performance of the whole wire can be greatly improved, the influence of external high temperature on the conductor wire core can be effectively avoided, the stable working capability of the wire under a high-temperature or open-fire environment can be enhanced, the normal and safe working of the wire can be ensured, and the service life of the wire can be prolonged;

a section of conductor wire core 1 extends from the tail end of the first wire 16 and the head end of the second wire 17, and the conductor wire cores 1 of the first wire and the second wire are connected in a hinged mode. The tail end of the first wire 16 is slidably sleeved with a connector 19 which is made of the same material as the inner flame-retardant layer 3 and the outer flame-retardant layer 5. The outer wall of the connector 19 is provided with a multi-step tapered anti-disengaging gear for matching with the connection of the connection sleeve 22. The outer side of the connector 19 is sleeved with a clamping sleeve 21 which is made of the same material as the anticorrosive insulation layer 9, a gap exists between the clamping sleeve 21 and the connector 19, the tail end of the clamping sleeve is opened, the other end of the clamping sleeve is closed and is fixedly connected with the end part of the corresponding connector 19, and the clamping sleeve 21 and the connector 19 are matched to realize insertion connection with the connecting sleeve 22. The head end of the second electric wire 17 is slidably sleeved with a connecting ring 23, the front end face of the connecting ring 23 is fixedly connected with a connecting sleeve 22 which is sleeved outside the second electric wire 17 and is made of the same material as the composite high temperature resistant layer 4, a gap exists between the connecting sleeve 22 and the second electric wire 17, and the connecting sleeve is inserted into the gap between the clamping sleeve 21 and the connecting head 19 to form sealing protection. The front end face of the connector 19 and the rear end face of the connecting ring 23 are fixedly connected with the hoop 18 for fixing the connector 19 and the connecting ring 23, the hoop 18 is good in performance, simple and easy to install and high in sealing degree, and sealing protection of the wire connecting position can be further improved. When the first electric wire 16 is connected with the second electric wire 17 end to end, the connector 19 is firstly sleeved on the tail end of the first electric wire 16, and the connecting ring 23 is sleeved on the head end of the second electric wire 17. Then, the conductor core 1 with the tail end of the first wire 16 and the head end of the second wire 17 exposed outside is twisted together. Then, the connector 19 is moved to the connection position and the tail end of the connector is sleeved on the second electric wire 17, and the clamp 18 on the connector 19 is locked, so that the connector 19 can be fixed. Then, the connecting ring 23 is moved to enable the connecting sleeve 22 on the connecting ring to be close to and inserted into the gap between the connecting head 19 and the clamping sleeve 21, the hoop 18 on the connecting ring 23 is locked after the connecting ring 23 is inserted in place, the connecting ring 23 can be fixed, at the moment, the connecting part is completely wrapped in the connecting head 19, a sealed space is formed at the connecting part, sealing and protection are reliable, and sealing and protection are formed at the connecting part.

In this embodiment, high temperature resistant insulating filling layer 2 is that glass fiber spraying is cotton, can be used to the reinforcing on the one hand, and the external high temperature is prevented to the radiation of conductor sinle silk 1 to the electrical insulation of electric wire, performances such as thermal-insulated, reduces the heat energy invasion, and on the other hand can also further improve conductor sinle silk 1's tensile strength, guarantees the normal stable installation and the use of electric wire.

In this embodiment, the composite high temperature resistant layer 4 is formed by compounding a silicone rubber layer 12, a high temperature resistant glass fiber layer 13, a ceramic fiber layer 14 and a polybenzimidazole fiber layer 15, and the silicone rubber layer 12, the high temperature resistant glass fiber layer 13, the ceramic fiber layer 14 and the polybenzimidazole fiber layer 15 are tightly attached from inside to outside in sequence to form multiple high temperature resistant protection, thereby greatly improving the high temperature resistance of the whole electric wire.

In this embodiment, the insulation layer 6 is rock wool, which can further improve the heat insulation performance of the electric wire.

In this embodiment, anticorrosive insulating layer 9 is polytetrafluoroethylene, has good heat resistance, electrical insulation and anticorrosive nature, can effectively guarantee the anticorrosive and electrical insulation performance of electric wire, and its inside interval distribution has a plurality of enhancement steel wires 10, can improve the tensile strength of whole electric wire greatly, reduces the fracture problem of electric wire when installation and use, further improves the practicality and the stability in use of electric wire.

In this embodiment, the wear-resistant layer 11 is made of polyurethane, has excellent oil resistance, wear resistance, aging resistance and other properties, and can improve the wear resistance and aging resistance of the whole wire and ensure the service life of the wire.

In this embodiment, all have a plurality of scale marks 24 along its length direction interval equipartition on the outer wall of the wearing layer 11 of electric wire 16 and electric wire two 17, when the laying of electric wire, according to the length of scale mark estimation electric wire, conveniently tailor, it is more convenient to use.

In this embodiment, the gap between the connecting head 19 and the clamping sleeve 21 is matched with the connecting sleeve 22, and the gap between the connecting sleeve 22 and the second electric wire 17 is matched with the connecting head 19, so that the connecting sleeve 22 can be smoothly inserted into the gap between the connecting head 19 and the clamping sleeve 21 to form a sealing protection. A first sealing ring 25 is fixedly arranged in a gap between the connector 19 and the clamping sleeve 21 and clings to the closed end of the clamping sleeve 21, a second sealing ring 26 is fixedly arranged in a gap between the connecting sleeve 22 and the second electric wire 17 and clings to the connecting ring 23, and a third sealing ring 27 is fixedly arranged on the outer wall of the connecting sleeve 22 and clings to the connecting ring 23 to further enhance the sealing performance of the connecting position.

The utility model discloses a theory of operation: the arrangement of the conductor wire core 1 twisted by nickel-plated copper wires can greatly enhance the high temperature resistance, corrosion resistance and wear resistance of the whole electric wire while ensuring the electric energy transmission of the electric wire, and can greatly improve the flame resistance, the high temperature resistance, the heat insulation and cooling performance and the corrosion resistance and wear resistance of the whole electric wire by matching with the high temperature resistance and electric insulation protection of the high temperature resistant insulation filling layer 2, the multiple flame resistance protection formed by the inner flame retardant layer 3, the outer flame retardant layer 5, the aluminum hydroxide flame retardant layer 7 and the magnesium hydroxide flame retardant layer 8, the multiple high temperature resistance protection of the composite high temperature resistant layer 4, the heat insulation and cooling effect of the isolation layer 6, the corrosion resistance and heat resistance insulation protection of the corrosion resistant insulation layer 9 and the wear resistance protection of the wear resistance layer 11, effectively avoid the influence of external high temperature on the conductor wire core 1, enhance the stable working capability of the electric wire under high temperature or open flame environment, ensure the normal stability and safe working of the electric wire, the service life of the wire is prolonged.

When the first electric wire 16 is connected with the second electric wire 17 end to end, the connector 19 is firstly sleeved on the tail end of the first electric wire 16, and the connecting ring 23 is sleeved on the head end of the second electric wire 17. Then, the conductor core 1 with the tail end of the first wire 16 and the head end of the second wire 17 exposed outside is twisted together. Then, the connector 19 is moved to the connection position and the tail end of the connector is sleeved on the second electric wire 17, and the clamp 18 on the connector 19 is locked, so that the connector 19 can be fixed. Then, the connecting ring 23 is moved to enable the connecting sleeve 22 on the connecting ring to be close to and inserted into the gap between the connecting head 19 and the clamping sleeve 21, the hoop 18 on the connecting ring 23 is locked after the connecting ring 23 is inserted in place, the connecting ring 23 can be fixed, at the moment, the connecting part is completely wrapped in the connecting head 19, a sealed space is formed at the connecting part, sealing and protection are reliable, and sealing and protection are formed at the connecting part.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an environmental protection fire-retardant electric wire, includes electric wire one and electric wire two, its characterized in that, electric wire one and electric wire two all include conductor sinle silk, interior fire-retardant layer, compound high temperature resistant layer, outer fire-retardant layer, isolation layer, anticorrosive insulation layer and wearing layer from inside to outside in proper order, the conductor sinle silk is twisted by a plurality of strands of nickel-plated copper wire and forms, be equipped with high temperature resistant insulating filling layer between the nickel-plated copper wire surface, be equipped with aluminium hydroxide fire retardant layer and magnesium hydroxide fire retardant layer between isolation layer and the anticorrosive insulation layer, electric wire one tail end and electric wire two head ends all extend there is a section conductor sinle silk and conductor sinle silk hinge between them is connected, sliding sleeve is equipped with the connector the same with inside and outside fire-retardant layer material on the electric wire one tail end, be equipped with the anticreep tooth of multi-step toper form on the connector outer wall, connector outside cover is equipped with the clamp sleeve the same with anticorrosive insulation layer material, there is clearance and its tail end opening, other end between clutch collar and the connector and seals and with corresponding connector tip fixed connection, sliding sleeve is equipped with the go-between on the two head ends of electric wire, fixedly connected with cover locates the two outsides of electric wire and the adapter sleeve the same with compound high temperature resistant layer material before the go-between, there is clearance and its grafting in the clearance between clutch collar and connector between adapter sleeve and the two electric wires, equal fixedly connected with clamp on terminal surface and the go-between rear end face before the connector.

2. The environmentally friendly flame retardant wire of claim 1 wherein the high temperature resistant insulating filler layer is glass fiber sprayed cotton, and the inner and outer flame retardant layers are polytetrafluoroethylene, fluorinated ethylene propylene copolymer or perfluoroalkoxy vinyl ether copolymer.

3. The environment-friendly flame-retardant wire according to claim 1, wherein the composite high-temperature-resistant layer is formed by compounding a silicone rubber layer, a high-temperature-resistant glass fiber layer, a ceramic fiber layer and a polybenzimidazole fiber layer, and the silicone rubber layer, the high-temperature-resistant glass fiber layer, the ceramic fiber layer and the polybenzimidazole fiber layer are tightly attached from inside to outside in sequence.

4. The environmentally friendly flame retardant wire of claim 1 wherein the insulation layer is rock wool.

5. The environment-friendly flame-retardant wire according to claim 1, wherein the corrosion-resistant insulating layer is made of polytetrafluoroethylene, and a plurality of reinforcing steel wires are distributed at intervals inside the corrosion-resistant insulating layer.

6. The environmentally friendly flame retardant wire of claim 1 wherein the abrasion resistant layer is polyurethane.

7. The environment-friendly flame-retardant wire according to claim 1, wherein the outer walls of the wear-resistant layers of the first wire and the second wire are uniformly provided with a plurality of scale marks at intervals along the length direction.

8. The environment-friendly flame-retardant wire according to claim 1, wherein a gap between the connector and the clamping sleeve is matched with the connector, and a gap between the connector and the second wire is matched with the connector.

9. The environment-friendly flame-retardant wire as claimed in claim 1, wherein a first sealing ring is fixedly arranged in a gap between the connector and the clamping sleeve and clings to the closed end of the clamping sleeve, a second sealing ring is fixedly arranged in a gap between the connecting sleeve and the second wire and clings to the connecting ring, and a third sealing ring is fixedly arranged on the outer wall of the connecting sleeve and clings to the connecting ring.