CN108091440B - Anti-overheating cable capable of automatically forming heat dissipation air duct - Google Patents

Anti-overheating cable capable of automatically forming heat dissipation air duct Download PDF

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Publication number
CN108091440B
CN108091440B CN201711218541.1A CN201711218541A CN108091440B CN 108091440 B CN108091440 B CN 108091440B CN 201711218541 A CN201711218541 A CN 201711218541A CN 108091440 B CN108091440 B CN 108091440B
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China
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inner sheath
cable
sheath
heat dissipation
air duct
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CN201711218541.1A
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CN108091440A (en
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万俊生
周本富
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Guangdong Guanxian Cable Group Co ltd
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Guangdong Pearl River Crown Cable Industry Co Ltd
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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
    • H01B7/42Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation

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Abstract

The invention discloses an anti-overheating cable capable of automatically forming a heat dissipation air duct, which comprises: the cable core and in proper order the cladding around the cable core periphery around covering, shielding layer, inner sheath and oversheath, wherein: the inner sheath is made of hard materials, the outer sheath is made of elastic materials, and a space is reserved between the outer peripheral surface of the inner sheath and the inner peripheral surface of the outer sheath to form an annular cavity; the annular cavity is internally provided with a plurality of traction bodies which are annularly and uniformly distributed around the outer peripheral surface of the inner sheath, the traction bodies are made of heat-shrinkable materials and linearly extend along the length direction of the cable, one side of each traction body is fixed with the inner sheath, and the side far away from the inner sheath is fixed with the outer sheath. The invention can automatically change the external structure thereof according to the change of the internal heat, so that the generated heat can be quickly dissipated, thereby improving the use safety of the cable.

Description

Anti-overheating cable capable of automatically forming heat dissipation air duct
Technical Field
The invention relates to the technical field of cables, in particular to an anti-overheating cable capable of automatically forming a heat dissipation air duct.
Background
It is known that cables are assembled together in bundles of a plurality of cables during the assembly and arrangement. This results in generally small or even no gaps between the cables and poor ventilation between them. Therefore, the cable cannot be normally radiated in the working process, the phenomenon of cable overheating is easy to occur, and the consequences can not be imagined if the cable is not processed in time.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an anti-overheating cable capable of automatically forming a heat dissipation air channel, which can automatically form an air inlet channel on the surface of the cable when the temperature of the cable exceeds a preset value so as to accelerate the heat dissipation speed of the cable and ensure the normal operation of the cable.
The invention provides an anti-overheating cable capable of automatically forming a heat dissipation air duct, which comprises: the cable core and in proper order the cladding around the cable core periphery around covering, shielding layer, inner sheath and oversheath, wherein:
the inner sheath is made of hard materials, the outer sheath is made of elastic materials, and a space is reserved between the outer peripheral surface of the inner sheath and the inner peripheral surface of the outer sheath to form an annular cavity; the annular cavity is internally provided with a plurality of traction bodies which are annularly and uniformly distributed around the outer peripheral surface of the inner sheath, the traction bodies are made of heat-shrinkable materials and linearly extend along the length direction of the cable, one side of each traction body is fixed with the inner sheath, and the side far away from the inner sheath is fixed with the outer sheath.
Preferably, a support body extending in the same direction as the traction bodies is arranged in the annular cavity and between any two adjacent traction bodies, one side of the support body is fixed with the inner sheath, and the side, far away from the inner sheath, of the support body is fixed with the outer sheath.
Preferably, the support is made of a thermally expandable material.
Preferably, in the circumferential direction of cable core (1), the both sides of supporter all are equipped with and are used for carrying out the spacing body of circumference to it, the spacing body is made by hard material and extends with the supporter syntropy, and one side and the inner sheath of spacing body are fixed.
Preferably, the outer circumference of the shielding layer and the inner side of the inner sheath are provided with an extrusion layer.
According to the invention, the materials of the inner sheath and the outer sheath are selected, so that the inner sheath has good structural stability, the outer sheath has good elastic performance, and the annular cavity is arranged between the inner sheath and the outer sheath, so that the outer sheath has a space which is elastically changed towards the direction of the inner sheath; when the temperature of the cable exceeds a preset value, the traction body is heated and shrunk to pull the outer sheath to be connected with the outer sheath to elastically deform towards the direction of the inner sheath, so that a plurality of grooves which are uniformly distributed in the circumferential direction and extend along the length direction of the cable are formed on the outer circumferential surface of the outer sheath, an air inlet channel is formed by utilizing the formed grooves to ventilate and radiate, and the temperature of the cable is reduced; and when the temperature of the cable is recovered to be within a preset value, the traction body automatically recovers to the inherent shape.
In summary, the anti-overheating cable capable of automatically forming the heat dissipation air duct provided by the invention can automatically and correspondingly change the external structure thereof according to the change of the internal heat, so that the generated heat can be rapidly dissipated, thereby improving the use safety of the cable.
Drawings
Fig. 1 is a cross-sectional view of an anti-overheating cable capable of automatically forming a heat dissipation air duct according to the present invention.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
As shown in fig. 1, fig. 1 is a cross-sectional view of an anti-overheating cable capable of automatically forming a heat dissipation air duct according to the present invention.
Referring to fig. 1, an anti-overheating cable capable of automatically forming a heat dissipation air duct according to an embodiment of the present invention includes: cable core 1 and cladding in proper order are around covering 2, shielding layer 3, inner sheath 4 and oversheath 5 of 1 periphery of cable core, wherein: the inner sheath 4 is made of hard materials, the outer sheath 5 is made of elastic materials, and a space is reserved between the outer peripheral surface of the inner sheath 4 and the inner peripheral surface of the outer sheath 5 to form an annular cavity; the ring intracavity is equipped with the pull body 6 of a plurality of around the outer peripheral face annular equipartition of inner sheath 4, pull body 6 is formed by the preparation of heat-shrinkable material and extends along the length direction straight line of this cable, and one side and the inner sheath 4 of pull body 6 are fixed, and the one side of just keeping away from inner sheath 4 is fixed with oversheath 5.
The invention works as follows: the inner sheath 4 has good structural stability through selecting the materials of the inner sheath 4 and the outer sheath 5, the outer sheath 5 has good elastic performance, and the outer sheath 5 has a space which is elastically changed towards the inner sheath 4 through arranging a ring cavity between the inner sheath 4 and the outer sheath 5; when the temperature of the cable exceeds a preset value, the traction body 6 is heated and shrunk to pull the outer sheath 5 and the joint surface of the outer sheath 5 to be elastically deformed towards the direction of the inner sheath 4, so that a plurality of grooves which are uniformly distributed in the circumferential direction and extend along the length direction of the cable are formed on the outer circumferential surface of the outer sheath 5, an air inlet channel is formed by utilizing the formed grooves to ventilate and radiate, and the temperature of the cable is reduced; and when the temperature of the cable is restored to within a predetermined value, the pulling body 6 is automatically restored to the original shape.
Therefore, the anti-overheating cable capable of automatically forming the heat dissipation air duct can automatically and correspondingly change the external structure of the cable according to the change of the internal heat, so that the phenomenon of overheating caused by the fact that the heat cannot be quickly dissipated when the cable works under long-term load due to the fact that the cable is arranged densely is avoided, and the use safety of the cable can be effectively improved.
In addition, in the embodiment, a supporting body 7 extending in the same direction as the pulling bodies 6 is arranged in the annular cavity and between any two adjacent pulling bodies 6, one side of the supporting body 7 is fixed with the inner sheath 4, and the side thereof far away from the inner sheath 4 is fixed with the outer sheath 5. So as to improve the forming effect of the groove by utilizing the matching of the support body 7 and the traction body 6.
In this embodiment, the supporting body 7 is made of a thermal expansion material, so that the supporting body 7 can expand when the temperature of the cable exceeds a predetermined value, and the outer sheath 5 is pushed to protrude outwards by the expansion of the supporting body 7, so that the outer sheath and the traction body 6 are matched to increase the depth of the groove, increase the air intake at the groove, and accelerate the heat dissipation speed. In the embodiment, in the circumferential direction of the cable core (1), both sides of the supporting body 7 are provided with limiting bodies 8 for circumferentially limiting the supporting body 7, the limiting bodies 8 are made of hard materials and extend in the same direction as the supporting body 7, and one side of each limiting body 8 is fixed with the inner sheath 4. So that the support body 7 can only expand and contract radially when heated, and the expansion and contraction amount is used for pushing the outer sheath 5 to deform outwards.
In this embodiment, the outer circumference of the shielding layer 3 and the inner side of the inner sheath 4 are provided with the extruding layer 9 to improve the protection effect inside the cable.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (5)

1. An anti-overheating cable capable of automatically forming a heat dissipation air duct is characterized by comprising: cable core (1) and in proper order the cladding around cable core (1) periphery around covering (2), shielding layer (3), inner sheath (4) and oversheath (5), wherein:
the inner sheath (4) is made of hard materials, the outer sheath (5) is made of elastic materials, and a space is reserved between the outer peripheral surface of the inner sheath (4) and the inner peripheral surface of the outer sheath (5) to form an annular cavity; the ring intracavity is equipped with pull body (6) of a plurality of outer peripheral face annular equipartition around inner sheath (4), pull body (6) are formed by the preparation of heat-shrinkable material and extend along the length direction straight line of this cable, and one side and inner sheath (4) of pull body (6) are fixed, and the one side of just keeping away from inner sheath (4) is fixed with oversheath (5).
2. The anti-overheating cable capable of automatically forming the heat dissipation air duct according to claim 1, wherein a support body (7) extending in the same direction as the traction bodies (6) is arranged in the annular cavity and between any two adjacent traction bodies (6), one side of the support body (7) is fixed with the inner sheath (4), and the other side of the support body away from the inner sheath (4) is fixed with the outer sheath (5).
3. The anti-overheating cable capable of automatically forming a heat dissipation air duct according to claim 2, wherein the supporting body (7) is made of a thermal expansion material.
4. The anti-overheating cable capable of automatically forming the heat dissipation air duct is characterized in that limiting bodies (8) used for limiting the cable core (1) in the circumferential direction are arranged on two sides of the supporting body (7), the limiting bodies (8) are made of hard materials and extend in the same direction as the supporting body (7), and one side of each limiting body (8) is fixed to the inner sheath (4).
5. The anti-overheating cable capable of automatically forming a heat dissipation air duct according to any one of claims 1 to 4, wherein the outer periphery of the shielding layer (3) and the inner side of the inner sheath (4) are provided with an extrusion layer (9).
CN201711218541.1A 2017-11-28 2017-11-28 Anti-overheating cable capable of automatically forming heat dissipation air duct Active CN108091440B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711218541.1A CN108091440B (en) 2017-11-28 2017-11-28 Anti-overheating cable capable of automatically forming heat dissipation air duct

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Application Number Priority Date Filing Date Title
CN201711218541.1A CN108091440B (en) 2017-11-28 2017-11-28 Anti-overheating cable capable of automatically forming heat dissipation air duct

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CN108091440B true CN108091440B (en) 2020-03-27

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108808612B (en) * 2018-07-12 2020-03-03 苏州佳通科技股份有限公司 Cable duct with sealing and dehumidifying functions
CN111223590B (en) * 2020-02-12 2020-12-04 安徽四惠电缆有限公司 Polyvinyl chloride insulation sheath control cable
CN112271023B (en) * 2020-10-22 2021-03-26 无锡市宇盛线缆有限公司 Anti-overheating cable
CN112700911B (en) * 2020-12-17 2022-04-12 河北嘉德电力器材有限公司 Waterproof ventilative type prevents to miss disconnected underground cable of digging
CN113885148B (en) * 2021-09-07 2023-02-24 杭州富通通信技术股份有限公司 Skeleton cable
CN116779234B (en) * 2023-06-14 2024-01-09 江西南远电缆有限公司 Heat dissipation type cable for new energy automobile and heat dissipation structure forming device thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003151373A (en) * 2001-11-12 2003-05-23 Ryosei Electro-Circuit Systems Ltd Laminated flat cable
CN206249937U (en) * 2016-11-16 2017-06-13 林军 A kind of cable with V-arrangement wind groove energy quick heat radiating
CN206421846U (en) * 2017-01-23 2017-08-18 安徽超越电缆科技有限公司 A kind of excellent novel cable of radiating effect

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003151373A (en) * 2001-11-12 2003-05-23 Ryosei Electro-Circuit Systems Ltd Laminated flat cable
CN206249937U (en) * 2016-11-16 2017-06-13 林军 A kind of cable with V-arrangement wind groove energy quick heat radiating
CN206421846U (en) * 2017-01-23 2017-08-18 安徽超越电缆科技有限公司 A kind of excellent novel cable of radiating effect

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Effective date of registration: 20200108

Address after: 511483 No.102, No.127, Qingluo Avenue, Shawan Town, Panyu District, Guangzhou City, Guangdong Province

Applicant after: Guangdong Pearl River crown cable industry Co.,Ltd.

Address before: 238300 Ruikan Cable Company, Rixin Section of Wuwei High-tech Avenue, Wuhu City, Anhui Province

Applicant before: ANHUI RUIKAN SCIENCE CABLE Co.,Ltd.

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Address after: 511483 No. 102, 127 Qingluo Avenue, Shawan Town, Panyu District, Guangzhou City, Guangdong Province

Patentee after: Guangdong Guanxian Cable Group Co.,Ltd.

Country or region after: China

Address before: 511483 No. 102, 127 Qingluo Avenue, Shawan Town, Panyu District, Guangzhou City, Guangdong Province

Patentee before: Guangdong Pearl River crown cable industry Co.,Ltd.

Country or region before: China