CN210429371U - Double-layer co-extrusion environment-friendly flame-retardant electric wire - Google Patents

Double-layer co-extrusion environment-friendly flame-retardant electric wire Download PDF

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Publication number
CN210429371U
CN210429371U CN201921336372.6U CN201921336372U CN210429371U CN 210429371 U CN210429371 U CN 210429371U CN 201921336372 U CN201921336372 U CN 201921336372U CN 210429371 U CN210429371 U CN 210429371U
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CN
China
Prior art keywords
double
wire
layer
conductor
electric wire
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Expired - Fee Related
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CN201921336372.6U
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Chinese (zh)
Inventor
符华勇
李娇文
艾爱良
吴斌
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Hunan Mishuihe Cables Co ltd
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Hunan Mishuihe Cables Co ltd
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Priority to CN201921336372.6U priority Critical patent/CN210429371U/en
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Publication of CN210429371U publication Critical patent/CN210429371U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a fire-retardant electric wire of double-deck crowded environmental protection altogether, including conductor, insulating layer, electric wire body and oversheath, the electric wire body has the conductor and wraps up the insulating layer in the conductor outside and forms, the conductor has a plurality of wires to organize the transposition and forms, the wire group is twisted by a plurality of wires and a shellproof silk and forms, the outside parcel of insulating layer has the oversheath. The utility model discloses in, this fire-retardant electric wire of double-deck crowded environmental protection altogether, the conductor is adopted double-deck secondary transposition secondary by wire and wire group, and the wire is one-level anaerobic copper to it is close to possess the lay length, and compactness is high, and anti-oxidant strong, electrically conductive strong, energy-conserving power saving, wire stripping processing conductor do not have loose advantage.

Description

Double-layer co-extrusion environment-friendly flame-retardant electric wire
Technical Field
The utility model relates to an electric wire technical field especially relates to double-deck fire-retardant electric wire of environmental protection altogether.
Background
The electric wire refers to a conducting wire for transmitting electric energy, a bare wire, an electromagnetic wire and an insulating wire. The bare wires have no insulating layer and comprise copper, aluminum flat wires, overhead stranded wires and various profiles (such as molded lines, buses, copper bars, aluminum bars and the like). It is mainly used for outdoor overhead and indoor bus bars and switch boxes. Magnet wires are insulated wires that, when energized, produce a magnetic field or induce a current in a magnetic field. It is mainly used for motor and transformer coils and other relevant electromagnetic equipment. The conductor is mainly a copper wire, and has a thin insulating layer, good electrical and mechanical properties, heat resistance, moisture resistance, solvent resistance and the like. Different insulating materials are selected to achieve different characteristics.
At present, the conductor of the existing electric wire is formed by twisting the conducting wires once, the integral tightness is low, the conductor processed by wire stripping is easy to loosen, and the flame-retardant waterproof effect is poor and easy to extrude and damage, so that the requirement of a user cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing a double-layer co-extrusion environment-friendly flame-retardant electric wire.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the double-layer co-extrusion environment-friendly flame-retardant wire comprises a conductor, an insulating layer, a wire body and an outer sheath;
the wire body comprises a conductor and an insulating layer wrapped on the outer side of the conductor, the conductor is formed by twisting a plurality of lead groups, and each lead group is formed by twisting a plurality of leads and a bulletproof wire;
the outer side of the insulating layer is wrapped with an outer sheath.
Preferably, the outer surface wall of the outer sheath is connected with a wear-resistant layer in a winding mode, a cavity is formed in the outer sheath, an elastic arc-shaped pad is arranged in the cavity, and an outer dry powder fireproof pipe is embedded in the cavity in the outer sheath.
Preferably, the elastic arc-shaped pads are provided with six, the six elastic arc-shaped pads are distributed in an annular shape, and the distance between every two adjacent elastic arc-shaped pads is equal.
Preferably, the number of the outer dry powder fireproof tubes is six, the six outer dry powder fireproof tubes are distributed in an annular shape, and the distance between every two adjacent outer dry powder fireproof tubes is equal.
Preferably, the conductor and the insulating layer are assembled by adopting a double-layer co-extrusion and one-step forming process.
Preferably, the insulating layer is made of polyvinyl chloride with the environment-friendly epoxy resin number being greater than or equal to 32.
Preferably, the wire is first-grade oxygen-free copper.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, this fire-retardant electric wire of double-deck crowded environmental protection altogether, the conductor is adopted double-deck secondary transposition secondary by wire and wire group, and the wire is one-level anaerobic copper to it is close to possess the lay length, and compactness is high, and anti-oxidant strong, electrically conductive strong, energy-conserving power saving, wire stripping processing conductor do not have loose advantage.
2. The utility model discloses in, this fire-retardant electric wire of double-deck crowded environmental protection altogether, the insulating layer adopt environmental protection oxygen fat number ≧ 32 polyvinyl chloride preparation, and fire behaviour is good, and fire-retardant level reaches B level, and the material combustion melting point is high to absorb the heat many, and electrical insulation can be good, has higher insulation resistance, has improved the current-carrying and the overload capacity of electric wire, and is good for waterproof insulation performance, and the material is non-polar molecule, and the structure is inseparable, and the hydrone hardly permeates.
3. The utility model discloses in, this fire-retardant electric wire of double-deck crowded environmental protection altogether, the inside cavity of having seted up of oversheath, be provided with the elasticity arc pad in the cavity, when this fire-retardant electric wire of double-deck crowded environmental protection altogether receives the extrusion, elasticity arc pad in the cavity has certain elastic contraction ability, can this fire-retardant electric wire of double-deck crowded environmental protection altogether of effectual protection, prevent that it from causing the extrusion to damage, the oversheath inlays and is equipped with outer dry powder flame retardant tube again, when this fire-retardant electric wire of double-deck crowded environmental protection altogether outside catches fire, when burning out the oversheath, the dry powder of this dry powder waterproof intraductal intussuseption of dry powder can spout, put out a.
Drawings
FIG. 1 is a schematic structural view of a double-layer co-extrusion environment-friendly flame-retardant electric wire provided by the present invention;
fig. 2 is a schematic structural diagram of a wire group of the double-layer co-extrusion environment-friendly flame-retardant electric wire provided by the utility model;
fig. 3 is a schematic structural view of a wire of the double-layer co-extrusion environment-friendly flame-retardant electric wire provided by the utility model;
fig. 4 is the utility model provides a structural sketch of the oversheath of double-deck crowded fire-retardant electric wire altogether of environmental protection.
Illustration of the drawings:
1. a conductor; 11. a wire group; 111. a wire; 112. anti-stretch yarn; 2. an insulating layer; 3. a wire body; 4. an outer sheath; 41. a wear layer; 42. a cavity; 43. an elastic arc-shaped pad; 44. an external dry powder fireproof tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows: referring to fig. 1-4, the double-layer co-extrusion environment-friendly flame-retardant wire comprises a conductor 1, an insulating layer 2, a wire body 3 and an outer sheath 4;
the wire body 3 consists of a conductor 1 and an insulating layer 2 wrapped outside the conductor 1, the conductor 1 is formed by twisting a plurality of lead groups 11, each lead group 11 is formed by twisting a plurality of leads 111 and an anti-bullet wire 112, the outer side of the insulating layer 2 is wrapped with an outer sheath 4,
example two: referring to fig. 1 and 4, a wear-resistant layer 41 is connected around the outer surface wall of an outer sheath 4, a cavity 42 is formed in the outer sheath 4, an elastic arc-shaped pad 43 is arranged in the cavity 42, six outer dry powder fire-proof tubes 44 are embedded in the outer sheath 4 and located in the cavity 42, the elastic arc-shaped pads 43 are arranged in six, the six elastic arc-shaped pads 43 are distributed annularly, the distance between two adjacent elastic arc-shaped pads 43 is equal, the six outer dry powder fire-proof tubes 44 are arranged in six, the six outer dry powder fire-proof tubes 44 are distributed annularly, the distance between two adjacent outer dry powder fire-proof tubes 44 is equal, the elastic arc-shaped pads 43 in the cavity 42 have certain elastic contractibility, the double-layer co-extrusion environment-friendly flame-retardant electric wire can be effectively protected, extrusion damage is prevented, the outer dry powder fire-proof tubes 44 are embedded in the outer sheath 4, when the double-layer co, when the outer sheath 4 is burnt out, the dry powder filled in the outer dry powder fireproof tube 44 can be sprayed out to extinguish fire, so that the fireproof and flame-retardant effects of the double-layer co-extrusion environment-friendly flame-retardant electric wire are improved.
Example three: referring to fig. 1, a conductor 1 and an insulating layer 2 are assembled by a double-layer co-extrusion one-time molding process, a lead 111 is made of primary oxygen-free copper, the conductor 1 is made of the lead 111 and a lead group 11 by double-layer secondary stranding, and the lead 111 is made of the primary oxygen-free copper, so that the cable has the advantages of dense lay length, high tightness, strong oxidation resistance, strong electric conduction, energy and power conservation, and no looseness of the processed conductors by stripping.
Example four: referring to fig. 1, the insulating layer 2 is made of polyvinyl chloride with the environment-friendly oxygen-fat number being greater than or equal to 32, the flame retardant property is good, the flame retardant grade reaches B level, the material has high combustion melting point, more heat absorption, good electrical insulation property and higher insulation resistance, the current carrying and overload capacity of the wire is improved, the waterproof insulating property is good, the material is a non-polar molecule, the structure is compact, and water molecules are difficult to permeate.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The double-layer co-extrusion environment-friendly flame-retardant wire is characterized by comprising a conductor (1), an insulating layer (2), a wire body (3) and an outer sheath (4);
the wire body (3) consists of a conductor (1) and an insulating layer (2) wrapped outside the conductor (1),
the conductor (1) is formed by twisting a plurality of lead groups (11), and each lead group (11) is formed by twisting a plurality of leads (111) and an anti-bullet wire (112);
the outer side of the insulating layer (2) is wrapped with an outer sheath (4).
2. The double-layer co-extrusion environment-friendly flame-retardant electric wire as claimed in claim 1, wherein the outer surface wall of the outer sheath (4) is connected with a wear-resistant layer (41) in a winding manner, a cavity (42) is formed inside the outer sheath (4), an elastic arc-shaped pad (43) is arranged inside the cavity (42), and an outer dry powder fireproof tube (44) is embedded inside the cavity (42) in the outer sheath (4).
3. The double-layer co-extrusion environment-friendly flame-retardant electric wire as claimed in claim 2, wherein the number of the elastic arc-shaped pads (43) is six, the six elastic arc-shaped pads (43) are distributed annularly, and the distance between two adjacent elastic arc-shaped pads (43) is equal.
4. The double-layer co-extrusion environment-friendly flame-retardant electric wire as claimed in claim 2, wherein the number of the outer dry powder fireproof tubes (44) is six, the six outer dry powder fireproof tubes (44) are distributed annularly, and the distance between two adjacent outer dry powder fireproof tubes (44) is equal.
5. The double-layer co-extrusion environment-friendly flame-retardant wire as claimed in claim 1, wherein the conductor (1) and the insulating layer (2) are assembled by a one-step forming process of double-layer co-extrusion.
6. The double-layer co-extrusion environment-friendly flame-retardant wire as claimed in claim 1, wherein the insulation layer (2) is made of polyvinyl chloride with the environment-friendly oxygen grease number being greater than or equal to 32.
7. The double-layer co-extrusion environment-friendly flame-retardant electric wire as claimed in claim 1, wherein the conducting wire (111) is first-grade oxygen-free copper.
CN201921336372.6U 2019-08-18 2019-08-18 Double-layer co-extrusion environment-friendly flame-retardant electric wire Expired - Fee Related CN210429371U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921336372.6U CN210429371U (en) 2019-08-18 2019-08-18 Double-layer co-extrusion environment-friendly flame-retardant electric wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921336372.6U CN210429371U (en) 2019-08-18 2019-08-18 Double-layer co-extrusion environment-friendly flame-retardant electric wire

Publications (1)

Publication Number Publication Date
CN210429371U true CN210429371U (en) 2020-04-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921336372.6U Expired - Fee Related CN210429371U (en) 2019-08-18 2019-08-18 Double-layer co-extrusion environment-friendly flame-retardant electric wire

Country Status (1)

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CN (1) CN210429371U (en)

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Granted publication date: 20200428