CN211604733U - Novel multi-core cable - Google Patents

Abstract

The utility model provides a novel multicore cable, including insulating filling layer, open in the insulating filling layer has a plurality of through-holes that hold insulated wire and insulating pair twist sinle silk, and insulating filling layer periphery cladding has around band, braided shield, sheath in proper order, and insulating pair twist sinle silk includes the sinle silk body and the cladding that constitute by two pair twist sinle silk pair twists the outside winding shielding layer of line core, insulated wire include the conductor layer, and the conductor layer contains the stranded conductor that many bare wires transposition formed, and the conductor layer periphery covers in proper order from inside to outside has interior cladding, outer coating. Multicore cable whole stronger mechanical strength that has to have better wearability and resistant bucking nature and compliance, long service life simultaneously.

Description

Novel multi-core cable

Technical Field

The utility model belongs to the cable field especially relates to a novel multicore cable.

Background

Cables, typically ropes of several or several groups of wires twisted together, are insulated from each other and often twisted around a center, and are surrounded by a highly insulating covering. The existing general cable cores are all in a circular structure, and are in a circular shape formed by arranging a plurality of conductors, when a plurality of circular cores exist, the compactness of the adjacent structures is not strong, and the overall structural strength of the cable is influenced; in actual use, the power cable is often damaged due to mechanical damage, and thus it is necessary to reinforce the mechanical strength of the entire cable.

In addition, the insulated wires housed in the multi-core cable are required to have excellent bending resistance against repeated bending. When the multi-core cable is repeatedly bent, the plurality of insulated wires housed in the cable rub against each other, and the insulation coating surfaces of the insulated wires may be worn. When a cable contains twisted pairs obtained by twisting two insulated wires, the twisted pairs locally contact each other and rub strongly, so that the abrasion of the insulation coating surface is significant. Therefore, the multi-core cable is required to have excellent flex resistance and flexibility while maintaining abrasion resistance.

Disclosure of Invention

In view of this, the utility model aims at providing a novel multicore cable to wholly have stronger mechanical strength, and have better wearability and resistant bucking nature and compliance simultaneously, long service life.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a novel multicore cable, includes insulating filling layer, opens in the insulating filling layer has a plurality of through-holes that hold insulated wire and insulating pair twist sinle silk, and insulating filling layer periphery cladding has in proper order around the band, weaves shielding layer, sheath, and insulating pair twist sinle silk includes the sinle silk body that comprises two pair twist sinle silk pair twists and the cladding is in the outside winding shielding layer of line core, insulated wire include the conductor layer, and the conductor layer contains the stranded conductor that many bare wire transposition formed, and the conductor layer periphery covers interior cladding, outer coating from inside to outside in proper order.

Furthermore, the twisted pair wire core comprises an inner conductor and an insulating layer coated outside the inner conductor.

Further, the inner coating is preferably an inner coating made of polyvinyl chloride.

Further, the outer coating layer is preferably an outer coating layer made of an ethylene-tetrafluoroethylene copolymer resin.

Further, the wrapping tape is preferably made of alkali-free glass silk tape.

Further, the sheath is preferably made of one or two materials of polyethylene and tetrafluoroethylene-hexafluoropropylene copolymer resin.

Further, the thicknesses of the sheath, the woven shielding layer and the wrapping tape are reduced in sequence.

Furthermore, the number of the insulated wires is four, and the number of the insulated twisted wire cores is 8.

Compared with the prior art, novel multicore cable have following advantage:

(1) novel multicore cable, whole stronger mechanical strength that has to have better wearability and resistant bucking nature and compliance, long service life simultaneously.

(2) The novel multi-core cable, the inner coating layer is the layer for improving the flexibility of the insulated wire. The flexibility of the insulated wire is improved, thereby further improving the flexibility of the multi-core cable. The inner coating made of polyvinyl chloride is resistant (i.e., hard to break) to repeated bending and is soft.

(3) Novel multicore cable, outer coating make insulated wire have satisfied bucking resistance and stand wear and tear resistance for making the multicore cable can not take place the bad situation even bear the bending repeatedly more than the predetermined number of times. The outer coating made of ethylene tetrafluoroethylene copolymer resin has good buckling resistance and wear resistance.

(4) Novel multicore cable, through forming the inner coating by polyvinyl chloride (PVC) as soft material, can improve multicore cable's compliance, simultaneously, through forming the outer coating with the ethylene tetrafluoroethylene copolymer resin as the material that resistance to flexure and wearability are high, can satisfy insulated wire's wearability.

(5) Novel multicore cable, through inside insulating filling layer and open the through-hole that has appearance insulated wire and insulating pair twist sinle silk in insulating filling layer for can not produce the collision between each electric wire of whole multicore cable inside, also can not rock, holistic mechanical strength reinforcing.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of a multi-core cable according to an embodiment of the present invention;

fig. 2 is a schematic view of an insulated wire according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an insulated twisted pair wire core according to an embodiment of the present invention;

fig. 4 is a schematic view of the insulating filling layer according to the embodiment of the present invention.

Description of reference numerals:

1-insulating filling layer; 11-insulated wire through hole; 12-insulation twisted pair wire core through hole; 2-insulating twisted pair wire core; 21-winding a shielding layer; 221-inner conductor; 222-an insulating layer; 3-an insulated wire; 31-an outer coating layer; 32-inner coating layer; 33-bare wire; 34-a conductor layer; 4-wrapping a tape; 5-weaving a shielding layer; 6-sheath.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 4, a novel multi-core cable, including insulating filling layer 1, it has a plurality of through-holes that hold insulating electric wire 3 and insulating pair twist sinle silk 2 to open in insulating filling layer 1, and insulating filling layer 13 periphery cladding has around band 4 in proper order, weaves shielding layer 5, sheath 6, and insulating pair twist sinle silk 2 includes the sinle silk body that comprises two pair twist sinle silks 22 pair twist and cladding in the outside winding shielding layer 21 of sinle silk body, insulating electric wire 3 includes conductor layer 34, and conductor layer 34 contains the stranded conductor that many bare wires 33 transposition formed, and conductor layer 34 periphery has covered inner covering 32, outer covering 31 from inside to outside in proper order.

The whole has stronger mechanical strength, better wear resistance, buckling resistance and flexibility and long service life.

The twisted pair core 22 includes an inner conductor 221 and an insulating layer 222 covering the outer portion of the inner conductor 221.

The inner coating 32 is preferably an inner coating 32 made of polyvinyl chloride.

The inner coating 32 is a layer for improving flexibility of the insulated wire 3. The flexibility of the insulated wire 3 is improved, thereby further improving the flexibility of the multi-core cable. The inner cladding 32 made of polyvinyl chloride is resistant (i.e., hard to break) to repeated bending and is flexible.

The outer coating layer 31 is preferably an outer coating layer 31 made of an ethylene-tetrafluoroethylene copolymer resin.

The outer coating 31 is provided to provide the insulated wire 3 with satisfactory bending resistance and abrasion resistance so that no trouble occurs even if the multi-core cable is subjected to repeated bending for a predetermined number of times or more. The outer cover 31 made of an ethylene tetrafluoroethylene copolymer resin has good flex resistance and wear resistance.

The flexibility of the multi-core cable can be improved by forming the inner coating layer 32 from polyvinyl chloride (PVC), which is a flexible material, and the abrasion resistance of the insulated wire 3 can be satisfied by forming the outer coating layer 31 from ethylene tetrafluoroethylene copolymer resin (ETFE), which is a material having high flex resistance and abrasion resistance.

The wrapping tape 4 is preferably made of alkali-free glass ribbon.

The sheath 6 is preferably made of one or two materials of polyethylene and tetrafluoroethylene-hexafluoropropylene copolymer resin.

The thicknesses of the sheath 6, the woven shielding layer 5 and the wrapping tape 4 are reduced in sequence.

Insulated wire 3 is equipped with four, insulated pair twist sinle silk 2 is equipped with 8.

Through inside insulating filling layer 1 that sets up and open the through-hole that has appearance insulated wire and insulating pair twist core in insulating filling layer 1 for can not produce the collision between inside each electric wire of whole multicore cable, also can not rock, holistic mechanical strength reinforcing.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A novel multi-core cable is characterized in that: including insulating filling layer (1), it has a plurality of through-holes that hold insulated wire (3) and insulating pair twist sinle silk (2) to open in insulating filling layer (1), and insulating filling layer (1) periphery cladding has around band (4) in proper order, weaves shielding layer (5), sheath (6), and insulating pair twist sinle silk (2) include by two pair twist sinle silks (22) the sinle silk body that the pair twist constitutes and cladding in the outside winding shielding layer (21) of wire core body, insulated wire (3) include conductor layer (34), and conductor layer (34) contain the stranded conductor that many bare wire (33) transposition formed, and conductor layer (34) periphery has interior coating (32), outer coating (31) from inside to outside in proper order to cover.

2. A novel multi-core cable as claimed in claim 1, wherein: the twisted pair wire core (22) comprises an inner conductor (221) and an insulating layer (222) coated outside the inner conductor (221).

3. A novel multi-core cable as claimed in claim 1, wherein: the inner coating (32) is preferably an inner coating (32) made of polyvinyl chloride.

4. A novel multi-core cable as claimed in claim 1, wherein: the outer coating (31) is preferably an outer coating (31) made of ethylene-tetrafluoroethylene copolymer resin.

5. A novel multi-core cable as claimed in claim 1, wherein: the wrapping tape (4) is preferably a wrapping tape (4) made of alkali-free glass silk ribbon.

6. A novel multi-core cable as claimed in claim 1, wherein: the thickness of the sheath (6), the braided shielding layer (5) and the wrapping tape (4) is reduced in sequence.

7. A novel multi-core cable as claimed in claim 1, wherein: the number of the insulated wires (3) is four, and the number of the insulated twisted pair wire cores (2) is 8.

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