CN111883292A - Stable in structure's flexible mineral insulated cable - Google Patents

Stable in structure's flexible mineral insulated cable Download PDF

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Publication number
CN111883292A
CN111883292A CN202010841687.7A CN202010841687A CN111883292A CN 111883292 A CN111883292 A CN 111883292A CN 202010841687 A CN202010841687 A CN 202010841687A CN 111883292 A CN111883292 A CN 111883292A
Authority
CN
China
Prior art keywords
sinle silk
insulating layer
layer
outer insulating
insulated cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010841687.7A
Other languages
Chinese (zh)
Inventor
王沈英
王建国
宋建兵
张黄芳
冯霞
贺建祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Qinshan Cable Co ltd
Original Assignee
Zhejiang Qinshan Cable Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Qinshan Cable Co ltd filed Critical Zhejiang Qinshan Cable Co ltd
Priority to CN202010841687.7A priority Critical patent/CN111883292A/en
Publication of CN111883292A publication Critical patent/CN111883292A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0208Cables with several layers of insulating material
    • H01B7/0216Two layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/184Sheaths comprising grooves, ribs or other projections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22Metal wires or tapes, e.g. made of steel
    • H01B7/221Longitudinally placed metal wires or tapes
    • H01B7/223Longitudinally placed metal wires or tapes forming part of a high tensile strength core
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22Metal wires or tapes, e.g. made of steel
    • H01B7/228Metal braid
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

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  • Insulated Conductors (AREA)

Abstract

The invention discloses a flexible mineral insulated cable with stable structure, which comprises a plurality of wire cores, wire core supporting blocks, a first insulating layer, braided layers, a metal wire shielding layer and an outer insulating layer, wherein the number of the wire core supporting blocks is four, each wire core supporting block is internally provided with one wire core, the four wire core supporting blocks are mutually matched and combined into a combined body with a circular section, the wire core supporting blocks are wrapped with the first insulating layer, the braided layers are wrapped with the braided layers, the braided layers are wrapped with the metal wire shielding layer, and the metal wire shielding layer is wrapped with the outer insulating layer. The softness degree of the outer insulating layer is improved, external impact force can be absorbed and offset, and the cable is protected.

Description

Stable in structure's flexible mineral insulated cable
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of cables, in particular to the technical field of flexible insulated cables.
[ background of the invention ]
A cable is an electrical energy or signal transmission device, usually consisting of several or several groups of conductors, usually a cable like cable twisted from one or several groups of conductors, each group of conductors being insulated from each other and usually twisted around a center, the whole being covered by a highly insulating covering. The cable has interior circular telegram, the characteristics of external insulation, and current cable texture is harder, and the outside does not have the buffer layer, and the cable tensile resistance is pulled out the performance relatively poor, and easy fracture, cable core external insulation layer are fragile after long-time the use.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a flexible mineral insulated cable with a stable structure, which can improve the quality of the cable, improve the pulling resistance of the cable, and effectively prevent breakage.
In order to achieve the purpose, the invention provides a flexible mineral insulated cable with a stable structure, which comprises a plurality of wire cores, wire core supporting blocks, a first insulating layer, weaving layers, metal wire shielding layers and outer insulating layers, wherein the number of the wire core supporting blocks is four, each wire core supporting block is internally provided with one wire core, the four wire core supporting blocks are mutually matched to form a combined body with a circular cross section, the first insulating layer wraps the wire core supporting blocks, the weaving layers wrap the first insulating layer, the metal wire shielding layers wrap the weaving layers, and the outer insulating layers wrap the metal wire shielding layers.
Preferably, the outer insulating layer is evenly provided with a plurality of energy-absorbing flexible hollow grooves which are arranged around the center of the outer insulating layer at equal intervals.
Preferably, a plurality of outer insulating layer reinforcing steel wires are arranged between the energy-absorbing flexible hollow grooves on the outer insulating layer.
Preferably, the sinle silk supporting shoe be fan-shaped, the sinle silk supporting shoe in be equipped with can with sinle silk complex sinle silk mounting groove, the sinle silk supporting shoe on be close to the arc limit one side and be equipped with the open slot, open slot and sinle silk mounting groove intercommunication, the sinle silk pass through the open slot and can dismantle the joint with the sinle silk mounting groove and be connected.
Preferably, a tensile steel cable core is arranged in the center between the wire core supporting blocks, and a steel cable insulation wrapping layer is arranged outside the tensile steel cable core.
Preferably, a PVC layer is arranged between the metal wire shielding layer and the outer insulating layer as the optimal selection, and the wire core is wrapped by the wire core insulating layer.
Preferably, the wire core is formed by twisting a plurality of copper wires with the purity of more than 99.99 percent, and the diameters of the single-stranded bare copper wires are less than or equal to 0.1 mm.
Preferably, the thickness of the outer insulating layer is 3-7 mm.
The flexible mineral insulated cable with the stable structure has the beneficial effects that: according to the invention, the steel wires for improving the pulling resistance are arranged in the center of the cable and on the outer insulating layer, so that the quality of the cable is improved, the pulling resistance of the cable is improved, the cable is effectively prevented from being broken, the outer insulating layer of the cable is provided with a plurality of energy-absorbing flexible hollow grooves, the softness degree of the outer insulating layer is improved, the external impact force can be absorbed and counteracted, and the cable is protected.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic view of a structurally stabilized flexible mineral-insulated cable according to the present invention;
fig. 2 is a schematic structural diagram of a core and a core supporting block of the flexible mineral-insulated cable with stable structure according to the invention.
In the figure: the cable comprises a 1-wire core, a 2-wire core supporting block, a 3-first insulating layer, a 4-woven layer, a 5-metal wire shielding layer, a 6-outer insulating layer, a 7-drawing-resistant steel cable core, an 8-PVC polyvinyl chloride layer, a 11-wire core insulating layer, a 21-wire core mounting groove, a 22-open groove, a 61-energy-absorbing flexible hollow groove, a 62-outer insulating layer reinforced steel wire and a 71-steel cable insulating wrapping layer.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1 and 2, the flexible mineral insulated cable with stable structure of the invention comprises a plurality of core supports 1, core supports 2, first insulating layers 3, braided layers 4, metal wire shielding layers 5 and outer insulating layers 6, wherein four core supports 2 are provided, each core support 2 is provided with a core 1, the four core supports 2 are mutually matched to form a combination body with a circular cross section, the core supports 2 are wrapped with the first insulating layers 3, the first insulating layers 3 are wrapped with the braided layers 4, the braided layers 4 are wrapped with the metal wire shielding layers 5, the metal wire shielding layers 5 are wrapped with the outer insulating layers 6, the outer insulating layers 6 are uniformly provided with a plurality of energy-absorbing flexible hollow grooves 61, and the flexible hollow grooves 61 are equidistantly arranged around the center of the outer insulating layers 6, a plurality of outer insulation layer reinforced steel wires 62 are arranged between the energy-absorbing flexible hollow grooves 61 on the outer insulation layer 6, the core support block 2 is fan-shaped, a core installation groove 21 capable of being matched with the core 1 is arranged in the core support block 2, an open groove 22 is arranged on one side of the core support block 2 close to the arc-shaped edge, the open groove 22 is communicated with the core installation groove 21, the core 1 is detachably clamped and connected with the core installation groove 21 through the open groove 22, a steel cable pulling-resistant cable core 7 is arranged at the center between the core support blocks 2, an insulation wrapping layer 71 is arranged outside the steel cable pulling-resistant cable core 7, a PVC polyvinyl chloride layer 8 is arranged between the metal wire shielding layer 5 and the outer insulation layer 6, the core 1 is wrapped with the core insulation layer 11, and the steel cable pulling-resistant cable core 1 is formed by twisting a plurality of copper wires with the purity of more than 99., the diameter of each single-stranded bare copper wire is less than or equal to 0.1mm, and the thickness of the outer insulating layer 6 is 3-7 mm.
The working process of the invention is as follows:
in the working process of the flexible mineral insulated cable with the stable structure, the wire core 1 is used for transmitting electric power, the anti-pulling steel cable core 7 and the outer insulation layer reinforced steel wire 62 improve the anti-pulling performance of the cable, and the wire core 1 is detachably clamped and connected with the wire core mounting groove 21 through the open groove 22, so that the installation of the wire core is more convenient during production.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims (9)

1. The utility model provides a stable in structure's flexible mineral insulated cable which characterized in that: including a plurality of sinle silk (1), sinle silk supporting shoe (2), first insulation layer (3), weaving layer (4), wire shielding layer (5), outer insulating layer (6), sinle silk supporting shoe (2) have four, every sinle silk supporting shoe (2) in all be equipped with sinle silk (1), four sinle silk supporting shoes (2) mutually support and make up into a cross-section for circular shape assembly, sinle silk supporting shoe (2) outer parcel have first insulation layer (3), first insulation layer (3) outer parcel have weaving layer (4), weaving layer (4) outer parcel have wire shielding layer (5), wire shielding layer (5) outer parcel have outer insulating layer (6).
2. A structurally stable flexible mineral-insulated cable according to claim 1, characterized in that: outer insulating layer (6) on evenly be equipped with the flexible hollow groove of a plurality of energy-absorbing (61), flexible hollow groove of ability (61) all around outer insulating layer (6) center equidistance setting.
3. A structurally stable flexible mineral-insulated cable according to claim 2, characterized in that: a plurality of outer insulating layer reinforcing steel wires (62) are arranged between the energy-absorbing flexible hollow grooves (61) on the outer insulating layer (6).
4. A structurally stable flexible mineral-insulated cable according to claim 1, characterized in that: sinle silk supporting shoe (2) be fan-shaped, sinle silk supporting shoe (2) in be equipped with can with sinle silk (1) complex sinle silk mounting groove (21), sinle silk supporting shoe (2) on be close to one side on arc limit and be equipped with open slot (22), open slot (22) and sinle silk mounting groove (21) intercommunication, sinle silk (1) can dismantle the joint through open slot (22) and sinle silk mounting groove (21) and be connected.
5. A structurally stable flexible mineral-insulated cable according to claim 1, characterized in that: the cable core support block is characterized in that a tensile steel cable core (7) is arranged in the center between the cable core support blocks (2), and a steel cable insulation wrapping layer (71) is arranged outside the tensile steel cable core (7).
6. A structurally stable flexible mineral-insulated cable according to claim 1, characterized in that: and a PVC polyvinyl chloride layer (8) is arranged between the metal wire shielding layer (5) and the outer insulating layer (6).
7. A structurally stable flexible mineral-insulated cable according to claim 1, characterized in that: and the wire core (1) is wrapped by a wire core insulating layer (11).
8. A structurally stable flexible mineral-insulated cable according to claim 1, characterized in that: the wire core (1) is formed by twisting a plurality of copper wires with the purity of more than 99.99 percent, and the diameters of the single-stranded bare copper wires are less than or equal to 0.1 mm.
9. A structurally stable flexible mineral-insulated cable according to claim 1, characterized in that: the thickness of the outer insulating layer (6) is 3-7 mm.
CN202010841687.7A 2020-08-20 2020-08-20 Stable in structure's flexible mineral insulated cable Pending CN111883292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010841687.7A CN111883292A (en) 2020-08-20 2020-08-20 Stable in structure's flexible mineral insulated cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010841687.7A CN111883292A (en) 2020-08-20 2020-08-20 Stable in structure's flexible mineral insulated cable

Publications (1)

Publication Number Publication Date
CN111883292A true CN111883292A (en) 2020-11-03

Family

ID=73204023

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010841687.7A Pending CN111883292A (en) 2020-08-20 2020-08-20 Stable in structure's flexible mineral insulated cable

Country Status (1)

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CN (1) CN111883292A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205984355U (en) * 2016-07-15 2017-02-22 天津市元九科技有限责任公司 Resistance to compression type cable
CN106531290A (en) * 2016-12-30 2017-03-22 无锡江南电缆有限公司 Split conductor-type armored water-blocking power cable
CN107195372A (en) * 2017-06-30 2017-09-22 重庆渝丰鑫新线缆科技有限公司 One kind is stable and civilian dress is just torn open and leads core cable and its processing method more
CN207458647U (en) * 2017-10-27 2018-06-05 肇庆中乔电气实业有限公司 A kind of Novel free vulcanizes cross-linking radiation India-rubber cable
CN208256329U (en) * 2018-06-11 2018-12-18 临沂启阳电缆有限公司 A kind of high-strength cable
CN209729546U (en) * 2019-05-05 2019-12-03 安徽龙庵电缆集团有限公司 A kind of mineral insulating flexible fireproof cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205984355U (en) * 2016-07-15 2017-02-22 天津市元九科技有限责任公司 Resistance to compression type cable
CN106531290A (en) * 2016-12-30 2017-03-22 无锡江南电缆有限公司 Split conductor-type armored water-blocking power cable
CN107195372A (en) * 2017-06-30 2017-09-22 重庆渝丰鑫新线缆科技有限公司 One kind is stable and civilian dress is just torn open and leads core cable and its processing method more
CN207458647U (en) * 2017-10-27 2018-06-05 肇庆中乔电气实业有限公司 A kind of Novel free vulcanizes cross-linking radiation India-rubber cable
CN208256329U (en) * 2018-06-11 2018-12-18 临沂启阳电缆有限公司 A kind of high-strength cable
CN209729546U (en) * 2019-05-05 2019-12-03 安徽龙庵电缆集团有限公司 A kind of mineral insulating flexible fireproof cable

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Application publication date: 20201103