CN209859635U - High-temperature-resistant lead - Google Patents
High-temperature-resistant lead Download PDFInfo
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- CN209859635U CN209859635U CN201921147705.0U CN201921147705U CN209859635U CN 209859635 U CN209859635 U CN 209859635U CN 201921147705 U CN201921147705 U CN 201921147705U CN 209859635 U CN209859635 U CN 209859635U
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- isolation frame
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- high temperature
- fire
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Abstract
The utility model discloses a high temperature resistant wire relates to the technical field of high temperature resistant electric conductor, and it includes two conductors and common cladding at the restrictive coating of two conductor perisporium, and the conductor includes silver-plated copper strand wires and cladding in proper order at the PFA insulating layer and the fire-retardant sheath of silver-plated copper strand wires periphery wall, is provided with the fire-retardant isolation frame along conductor length direction between two conductors, and fire-retardant isolation frame length direction's both sides are respectively with two conductor grafting adaptations. The utility model discloses a PFA insulating layer and fire-retardant isolation frame's setting has improved the insulating protective capacities between two silvering copper strands, avoids two silvering copper strands contacts to take place the short circuit under high temperature environment as far as possible.
Description
Technical Field
The utility model belongs to the technical field of the technique of high temperature resistant electric conductor and specifically relates to a high temperature resistant wire is related to.
Background
Along with the continuous development of electrical equipment, form a complete set more and more high-power electrical apparatus in house, market, and the decoration mode is mostly dark line decoration nowadays, and these high-power electrical apparatus can produce a large amount of heats after long-time work on the wire, in case appear the short circuit or when the heat dissipation is uneven, insulating cover on the wire can be melted through, and the form of dark line installation will make the operation of putting out a fire or changing the wire afterwards become more complicated, and the cost is higher.
To the above-mentioned problem, chinese patent with patent publication No. CN206249933U proposes a high temperature resistant wire, which comprises a conductor, a first insulating layer, an asbestos fiber layer and a second insulating layer from inside to outside in sequence, the conductor is coated with the first insulating layer, the first insulating layer comprises a polypropylene layer and a teflon layer coated outside the polypropylene layer, the asbestos fiber layer is woven by asbestos fibers laid longitudinally and transversely, the second insulating layer comprises a polyethylene sleeve, and the polyethylene sleeve is coated with an iron oxide red silica gel layer. The utility model relates to a high temperature resistant wire that electrical insulation and fire resistance are good.
The above prior art solutions have the following drawbacks: generally, a civil lead is formed by combining two electric conductors, one electric conductor is connected with a zero line on commercial power, the other electric conductor is connected with a live wire on the commercial power and is communicated with a positive electrode and a negative electrode on an electric appliance, so that power transmission is provided for the electric appliance, the biggest hidden danger is that an insulating layer between the two electric conductors is fused to cause short circuit of the zero line and the live wire when a fire disaster happens, when the two electric conductors in the technical scheme are combined and used, the insulation protection between the two electric conductors is weaker, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can effectively prevent high temperature resistant wire of short circuit.
The utility model aims at realizing through the following technical scheme:
the utility model provides a high temperature resistant wire, includes two conductors and common cladding two the restrictive coating of conductor periphery wall, the conductor includes silver-plated copper strand wires and cladding in proper order the PFA insulating layer and the fire-retardant sheath of silver-plated copper strand wires periphery wall, two be provided with the edge between the conductor length direction's fire-retardant isolation frame, fire-retardant isolation frame length direction's both sides respectively with two the conductor adaptation of pegging graft.
By adopting the technical scheme, PFA is a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene, has stronger insulativity and corrosion resistance, is molten at the temperature of 400 ℃ plus 500 ℃ and has enhanced cohesiveness, and can well play an insulating role when being used as a PFA insulating layer to wrap the peripheral wall of the silver-plated copper stranded wire; fire-retardant isolation frame is to two silvered copper strands that communicate commercial power zero line and live wire respectively do further fixed point insulation and completely cut off, with prevent as far as possible that high temperature resistant wire is when being in high temperature environment for a long time PFA insulating layer and fire-retardant sheath melt and wear back two silvered copper strands and contact each other and take place the short circuit, the effect that high temperature resistant wire can effectively prevent the short circuit has been realized, fire-retardant isolation frame's both sides and conductor grafting adaptation, make two conductors by the restrictive coating parcel back, fire-retardant isolation frame can be in between two conductors all the time, with guarantee its effect that prevents the short circuit as far as possible.
Further setting the following steps: the both sides of fire-retardant isolation frame length direction all set up along its length direction and be the cambered surface groove, the conductor with cambered surface groove grafting adaptation.
By adopting the technical scheme, after the conductor is in splicing fit with the arc surface groove in the shape of the major arc, the conductor is fixed on the flame-retardant isolation frame, so that the flame-retardant isolation frame can be always positioned between the two conductors when the high-temperature-resistant wire is twisted, and the effect of preventing short circuit of the flame-retardant isolation frame is ensured as much as possible.
Further setting the following steps: and a glass fiber woven layer is arranged on the groove wall of the cambered surface groove.
By adopting the technical scheme, the softening point of the glass fiber reaches 500-750 ℃, and after the glass fiber woven layer is manufactured to be arranged on the wall of the cambered groove, the splicing adaptation of the cambered groove and the conductor can be ensured as far as possible under the continuous high-temperature state, and the isolation effect of the flame-retardant isolation frame on the two conductors can be maintained as far as possible.
Further setting the following steps: the middle part of the flame-retardant isolation frame is provided with a buffer cavity along the length direction of the flame-retardant isolation frame.
Through adopting above-mentioned technical scheme, the cushion chamber provides certain radial buffering surplus for high temperature resistant wire to prevent high temperature resistant wire as far as possible by the striking when just impaired.
Further setting the following steps: and the buffer cavity is filled with a high-temperature-resistant powder layer.
By adopting the technical scheme, the flame-retardant isolation frame is fused in an extremely high-temperature environment, and the high-temperature-resistant powder layer is adhered to the fused flame-retardant isolation frame, so that final protection can be provided for direct contact of the two silver-plated copper stranded wires.
Further setting the following steps: at least one reinforcing rope along the length direction of the flame-retardant isolation frame is further arranged in the flame-retardant isolation frame.
Through adopting above-mentioned technical scheme, strengthen the axial tensile strength that the rope has improved fire-retardant isolation frame, and then improved the axial tensile strength of high temperature resistant wire.
Further setting the following steps: and a talc powder layer is filled between the sheath layer and the peripheral wall of the two conductors.
Through adopting above-mentioned technical scheme, the talcum powder layer provides lubrication and certain fire behaviour for valve body and restrictive coating, prevents as far as possible that restrictive coating and conductor from taking place the bonding phenomenon.
To sum up, the utility model discloses a beneficial technological effect does:
the PFA insulating layer is bonded to the outer peripheral wall of the silver-plated copper stranded wire after being melted at high temperature, so that the two silver-plated copper stranded wires can be prevented from being in direct contact to generate short circuit as far as possible, and the flame-retardant isolation frame is used for further insulating and isolating the two silver-plated copper stranded wires, so that the short circuit prevention performance of the high-temperature-resistant wire is improved;
2. the arc-surface groove is arranged in a major arc shape to be in splicing fit with the silver-plated copper stranded wires, and the silver-plated copper stranded wires are fixed on the flame-retardant isolation frame, so that two silver-plated copper stranded wires can be effectively ensured to be always arranged on two sides of the flame-retardant isolation frame as far as possible, and the insulation and short circuit prevention effects of the flame-retardant isolation frame are ensured;
3. a high-temperature-resistant powder layer is filled in a buffer cavity in the middle of the flame-retardant isolation frame, and final protection is provided for insulation and short circuit prevention between the two silver-plated copper stranded wires.
Drawings
Fig. 1 is a sectional view of the whole structure of the present invention.
Reference numerals: 1. a conductor; 2. a sheath layer; 3. a PFA insulating layer; 4. a flame retardant jacket; 5. a flame retardant isolation rack; 6. a cambered surface groove; 7. a glass fiber braid layer; 8. a buffer chamber; 9. a refractory powder layer; 10. a reinforcing cord; 11. a talc powder layer; 12. and (4) plating silver copper stranded wires.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the high temperature resistant wire disclosed by the present invention, comprising two conductors 1 and a sheath layer 2 commonly coated on the outer peripheral wall of the two conductors 1, the sheath layer 2 is made of flame retardant silicone rubber, the conductors 1 comprise silver plated copper stranded wires 12 and a PFA insulating layer 3 and a flame retardant sheath 4 sequentially coated on the outer peripheral wall of the silver plated copper stranded wires 12, the flame retardant sheath 4 is also made of flame retardant silicone rubber, a flame retardant spacer 5 along the length direction of the conductors 1 is arranged between the two conductors 1, the flame retardant spacer 5 is made of PEEK plastic, cambered grooves 6 along the length direction and in a major arc shape are respectively arranged on both sides of the length direction of the flame retardant spacer 5, the outer peripheral wall of the conductors 1 is inserted and adapted with the cambered grooves 6, a glass fiber braided layer 7 is arranged on the groove wall of the cambered grooves 6, the glass fiber braided layer 7 is added to be integrally formed with the flame retardant, the middle part of the flame-retardant isolation frame 5 is provided with a buffer cavity 8 along the length direction of the flame-retardant isolation frame, a high-temperature-resistant powder layer 9 is filled in the buffer cavity 8, and the high-temperature-resistant powder layer 9 is made of magnesium oxide powder.
When the high-temperature-resistant lead works in a high-temperature environment or meets open fire, the sheath layer 2 and the flame-retardant sheath 4 made of the flame-retardant silicon rubber perform double-layer protection on the silver-plated copper stranded wires 12 to reduce the transmission of external heat to the inside of the high-temperature-resistant lead, and meanwhile, PFA is used as a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene, has strong insulating property and corrosion resistance, is molten and has enhanced cohesiveness at the temperature of 400 plus materials and 500 ℃, can perform an insulating function when being wrapped on the outer peripheral wall of the silver-plated copper stranded wires 12 as a PFA insulating layer 3, and can be bonded and wrapped on the outer peripheral wall of the silver-plated copper stranded wires 12 as far as possible after high temperature, so as to prevent the two silver-plated copper stranded wires 12 in the high-.
After the conductor 1 is spliced and matched with the major arc-shaped cambered surface groove 6, the conductor 1 is fixed on the flame-retardant isolation frame 5, so that when the high-temperature-resistant lead is twisted, the flame-retardant isolation frame 5 can be always positioned between the two conductors 1 and performs fixed-point insulation and isolation on two silver-plated copper stranded wires 12 which are respectively communicated with a mains supply zero line and a live line, so that the two silver-plated copper stranded wires 12 are contacted with each other to generate short circuit after the PFA insulating layer 3 and the flame-retardant sheath 4 are melted through when the high-temperature-resistant lead is in a high-temperature environment for a long time, and the effect that the high-temperature-resistant lead can; the softening point of the glass fiber reaches 500-; the high-temperature-resistant powder layer 9 made of the magnesium oxide powder has strong insulativity and arc breakdown resistance, the flame-retardant isolation frame 5 is fused in an extremely high-temperature environment, the high-temperature-resistant powder layer 9 in the buffer cavity 8 is adhered to the fused flame-retardant isolation frame 5, final protection can be provided for direct contact of the two silver-plated copper stranded wires 12, and the short-circuit prevention performance of the high-temperature-resistant lead is further improved.
Still pack between the periphery wall of restrictive coating 2 and two conductors 1 and the outer wall of fire-retardant isolation frame 5 has talcum powder layer 11, and the both ends of buffer chamber 8 all are provided with along its length direction's reinforcing rope 10 in fire-retardant isolation frame 5, and reinforcing rope 10 is formed by the carbon fiber transposition, and the line of two reinforcing rope 10 axes is the quadrature setting with the line of two silvered copper stranded conductor 12 axes.
Talc powder layer 11 provides lubrication and certain flame retardant property for valve body and restrictive coating 2, prevents restrictive coating 2 and conductor 1 as far as possible and takes place the bonding phenomenon, and reinforcing rope 10 has then improved the axial tensile strength of fire-retardant isolation frame 5, and then has improved the axial tensile strength of high temperature resistant wire.
The implementation principle and the beneficial effects of the embodiment are as follows:
the PFA insulating layer 3 in a molten state is bonded and coated on the outer peripheral wall of the silver-plated copper stranded wires 12 after high temperature is met, so that two silver-plated copper stranded wires 12 in the high-temperature resistant lead are prevented from being in contact with each other to generate short circuit as far as possible, the flame-retardant sheath 4 isolates open fire, and external heat is reduced to be directly transmitted to the PFA insulating layer 3 as far as possible; the flame-retardant isolation frame 5 is used for further insulating and isolating the two silver-plated copper stranded wires 12 at fixed points, so that the two silver-plated copper stranded wires 12 are prevented from being in contact with each other to generate short circuit as far as possible after the PFA insulating layer 3 and the flame-retardant sheath 4 are melted through when the high-temperature-resistant wire is in a high-temperature environment for a long time, and the effect that the high-temperature-resistant wire can effectively prevent the short circuit is realized; the cambered surface grooves 6 on the two sides of the flame-retardant isolation frame 5 are in splicing fit with the conductors 1, so that the flame-retardant isolation frame 5 can be always positioned between the two conductors 1, and the effect of preventing short circuit of the flame-retardant isolation frame 5 is ensured as much as possible.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A high temperature resistant wire, characterized by: including two conductors (1) and common cladding two sheath layer (2) of conductor (1) periphery wall, conductor (1) including silvering copper strand wires (12) and cladding in proper order the PFA insulating layer (3) and the fire-retardant sheath (4) of silvering copper strand wires (12) periphery wall are two be provided with the edge between conductor (1) length direction's fire-retardant isolation frame (5), fire-retardant isolation frame (5) length direction's both sides respectively with two conductor (1) grafting adaptation.
2. The high temperature resistant wire of claim 1, wherein: flame-retardant isolation frame (5) length direction's both sides all are seted up along its length direction and are cambered surface groove (6) grafting adaptation, conductor (1) with cambered surface groove (6.
3. The high temperature resistant wire of claim 2, wherein: and a glass fiber woven layer (7) is arranged on the groove wall of the cambered surface groove (6).
4. The high temperature resistant wire of claim 3, wherein: the middle part of the flame-retardant isolation frame (5) is provided with a buffer cavity (8) along the length direction.
5. The high temperature resistant wire of claim 4, wherein: the buffer cavity (8) is filled with a high-temperature-resistant powder layer (9).
6. The high temperature resistant wire of claim 1, wherein: at least one reinforcing rope (10) along the length direction of the flame-retardant isolation frame (5) is further arranged in the flame-retardant isolation frame.
7. The high temperature resistant wire of claim 1, wherein: and a talc powder layer (11) is filled between the sheath layer (2) and the outer peripheral wall of the two conductors (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921147705.0U CN209859635U (en) | 2019-07-20 | 2019-07-20 | High-temperature-resistant lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921147705.0U CN209859635U (en) | 2019-07-20 | 2019-07-20 | High-temperature-resistant lead |
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| Publication Number | Publication Date |
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| CN209859635U true CN209859635U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921147705.0U Active CN209859635U (en) | 2019-07-20 | 2019-07-20 | High-temperature-resistant lead |
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| CN (1) | CN209859635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112712921A (en) * | 2020-12-22 | 2021-04-27 | 闫哲 | Copper-clad aluminum alloy conductor |
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2019
- 2019-07-20 CN CN201921147705.0U patent/CN209859635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112712921A (en) * | 2020-12-22 | 2021-04-27 | 闫哲 | Copper-clad aluminum alloy conductor |
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