CN121237509A - A multi-core combined lightning protection cable - Google Patents
A multi-core combined lightning protection cableInfo
- Publication number
- CN121237509A CN121237509A CN202511793430.8A CN202511793430A CN121237509A CN 121237509 A CN121237509 A CN 121237509A CN 202511793430 A CN202511793430 A CN 202511793430A CN 121237509 A CN121237509 A CN 121237509A
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- layer
- frame
- aluminum foil
- grounding
- core
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- 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.)
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Abstract
本发明公开了一种多芯组合防雷电缆，涉及电力电缆技术领域，包括第一骨架，所述第一骨架内侧固定设置有若干鳍片，所述第一骨架内侧位于鳍片之间安装有第二骨架，通过第二骨架将第一骨架内部空间分隔为第一循环腔和第二循环腔，所述第一循环腔和第二循环腔内充满冷却液，所述第一骨架外侧绞绕嵌设安装有若干第一电芯，相邻第一电芯之间绞绕安装有第二电芯，所述第一电芯和第二电芯外侧设置有铝箔屏蔽层，所述铝箔屏蔽层外侧设置有隔热层，所述隔热层外侧设置有丝网编织层。本发明通过第一电芯和第二电芯进行电力传导，铝箔屏蔽层起到初步屏蔽的作用，铝箔屏蔽对干扰的屏蔽效果非常好，第一电芯和第二电芯产生的热量易被锁止在铝箔屏蔽层内。
This invention discloses a multi-core combined lightning protection cable, relating to the field of power cable technology. It includes a first frame with several fins fixedly disposed on its inner side. A second frame is installed between the fins on the inner side of the first frame, dividing the internal space of the first frame into a first circulation cavity and a second circulation cavity. Both the first and second circulation cavities are filled with coolant. Several first battery cells are wound and embedded on the outer side of the first frame, with second battery cells wound and installed between adjacent first battery cells. An aluminum foil shielding layer is disposed on the outer side of the first and second battery cells, a heat insulation layer is disposed on the outer side of the aluminum foil shielding layer, and a wire mesh braided layer is disposed on the outer side of the heat insulation layer. This invention conducts power through the first and second battery cells, with the aluminum foil shielding layer providing initial shielding. The aluminum foil shielding is highly effective at blocking interference, and the heat generated by the first and second battery cells is easily trapped within the aluminum foil shielding layer.
Description
Technical Field
The invention relates to the technical field of power cables, in particular to a multi-core combined lightning protection cable.
Background
The lightning protection cable is a special cable specially designed for resisting huge current and overvoltage generated by lightning stroke and lightning induction, and is an indispensable component in a lightning protection system. Many products also integrate a metal armor layer, which has the dual functions of mechanical protection and a leakage flow channel. The cable is widely applied to the fields of communication base stations, wind power generation, railway signals, lightning protection down-conduction of buildings, grounding systems, petrochemical industry and the like with extremely high lightning protection requirements. The device can protect equipment from surge impact, can prevent secondary disasters such as fire disaster, explosion and the like caused by lightning strike, and is a key defense line for guaranteeing important facilities and personal safety.
The invention of the authorization bulletin number CN103794288B discloses a lightning protection power cable, which is characterized in that three main wires are distributed in a regular triangle, so that the internal structure of the cable is stable, one main wire has the functions of power and signal transmission, the auxiliary wires filled in a gap are utilized to compensate power transmission, an aluminum wire is obliquely wrapped to prevent lightning stroke, the internal secondary wires are independently shielded to prevent signal interference, and the high-efficiency unification of the structural strength, the space utilization and the multifunctional transmission is realized.
The device can reach the purpose of lightning protection to the cable, adopt multiple shielding to set up simultaneously to cable shield protection under the prior art, it is unavoidable to let cable inside heat dissipation relatively poor, in case long-time operation has the potential safety hazard, for example adopts aluminium foil paper to shield, its self characteristic makes cable heat dissipation poor, consequently, need a device that can carry out good heat dissipation to inside cable, in addition, lightning protection cable's both ends still need handle, for example with each shielding layer that needs to carry out the ground connection carries out the ground connection and handle, therefore need an tip earthing device to cooperate, thereby reach and let the cable have good lightning protection effect, have good radiating effect again concurrently, promote lightning protection cable's practical value.
Disclosure of Invention
The invention aims to provide a multi-core combined lightning protection cable, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a multicore combination lightning protection cable, includes first skeleton, the inboard fixed a plurality of fins that are provided with of first skeleton, first skeleton inboard is located and installs the second skeleton between the fin, separates first skeleton inner space into first circulation chamber and second circulation chamber through the second skeleton, first circulation chamber and second circulation intracavity are full of coolant liquid, first skeleton outside is twisted around inlaying and is installed a plurality of first electric cores, twists around installing the second electric core between the adjacent first electric core, first electric core and second electric core outside are provided with the aluminium foil shielding layer, the aluminium foil shielding layer outside is provided with the insulating layer, the insulating layer outside is provided with the silk screen weaving layer, it has lubricating oil to scribble on the silk screen weaving layer, the silk screen weaving layer outside is provided with a plurality of sets of earthing units, is provided with graphite block between the adjacent earthing unit, earthing unit and graphite block outside are provided with the armor, the armor outside is provided with the crust, and first skeleton both ends are provided with earthing device and circulation cooling device respectively.
As a further scheme of the invention, the first battery cell comprises an insulating layer and a metal core, and the second battery cell comprises an insulating layer and a metal core.
As still further aspects of the present invention, the ground unit includes three ground lines.
The wire pressing grounding device comprises an inner sleeve layer, wherein an aluminum foil shielding layer is connected with the inner sleeve layer through symmetrically arranged aluminum foil connecting blocks, a wire mesh weaving layer is connected with the inner sleeve layer through symmetrically arranged wire mesh connecting blocks, a grounding wire and an armor layer are arranged on the inner sleeve layer in an extending mode, fixing rings are oppositely arranged on the outer side of the inner sleeve layer, the two fixing rings are locked through bolts and nuts, and a total grounding mechanism is arranged on one fixing ring.
As a still further scheme of the invention, the circulating cooling device comprises a water pump and a horn rack, wherein a liquid inlet and outlet pipe matched with a first framework and a second framework is arranged on the left side of the water pump and positioned on the inner side of the horn rack, a radiator is arranged on the right side of the water pump, the water pump is fixedly connected with the radiator through four connecting columns, the water pump is communicated with the radiator through a plurality of second connecting pipes, and the liquid inlet and outlet pipe is communicated with the radiator through a plurality of first connecting pipes.
As a still further scheme of the invention, the first connecting pipe is provided with a one-way valve.
Compared with the prior art, the invention has the following beneficial effects:
The aluminum foil shielding layer plays a role in primary shielding, the aluminum foil shielding has a very good shielding effect on interference, a cable can be lighter and thinner, in addition, the aluminum foil can conduct heat rapidly in the longitudinal direction (along the plane direction of the aluminum foil) and has higher thermal resistance in the transverse direction (along the thickness direction of the aluminum foil), the heat generated by the first electric core and the second electric core is easy to be locked in the aluminum foil shielding layer, the first framework absorbs the heat on the first electric core and the second electric core, the fins play a role in increasing the heat radiating area on the inner side of the first framework, the heat on the first framework and the fins is conveniently and timely radiated outwards, the second circulating cavity cooling liquid cools the second circulating cavity cooling liquid, the heat radiating efficiency of the second circulating cavity cooling liquid is improved, maintaining high-efficiency power transmission of the first electric core and the second electric core, separating internal and external heat by the heat insulation layer, preventing heat transfer between the first electric core, the second electric core and the grounding wire, preventing the first electric core and the second electric core from being influenced during lightning stroke, enabling the wire mesh braid to play a role of secondary shielding, enabling the aluminum foil shielding layer and the wire mesh braid to shield during lightning stroke, enabling the lightning stroke to be led into the ground by the grounding wire and the armor layer to enable the cable to stably run when the grounding wire and the wire mesh braid are prevented from being rubbed (preventing the shielding failure or the effectiveness of the wire mesh braid from being reduced), enabling the graphite block to connect the grounding wire with the armor layer, enabling scraps generated by the graphite block during abrasion to play a role of lubricating, further protecting the wire mesh braid, enabling the aluminum foil shielding layer and the wire mesh braid to shield the combined force during lightning stroke, reducing induction charges, the practicability of the cable is improved;
The aluminum foil shielding layer and the silk screen braiding layer in the cable are grounded through the aluminum foil connecting block and the silk screen connecting block, the grounding wire and the armor layer are connected with the inner sleeve layer and the fixed ring, so that the aluminum foil shielding layer, the silk screen braiding layer, the grounding wire and the armor layer can be grounded in a converging mode, the total grounding mechanism is communicated with the ground, a good grounding effect is achieved, and the technical effect of lightning protection of the cable is guaranteed;
the cooling liquid in the first circulating cavity and the second circulating cavity is conveniently circulated through the water pump, and the radiator radiates the cooling liquid, so that the power transmission efficiency of the cable is conveniently improved.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Fig. 2 is a schematic cross-sectional structure of the present invention.
Fig. 3 is a schematic view of a partial explosion structure of the present invention.
Fig. 4 is a schematic three-dimensional structure of the first skeleton according to the present invention.
FIG. 5 is a schematic view showing a three-dimensional structure of a circulating cooling apparatus according to the present invention.
FIG. 6 is a schematic view of a partial three-dimensional structure of a circulating cooling apparatus according to the present invention.
Fig. 7 is a schematic view of a partial three-dimensional structure of a line grounding device according to the present invention.
The reference numerals are annotated as 1, a first framework, 2, a second framework, 3, fins, 4, a first circulation cavity, 5, a second circulation cavity, 6, a first electric core, 7, a second electric core, 8, an aluminum foil shielding layer, 9, a heat insulation layer, 10, a silk screen braiding layer, 11, a grounding wire, 12, a graphite block, 13, an armor layer, 14, a sheath, 15, a wire pressing grounding device, 151, an inner sleeve layer, 152, a fixing ring, 153, a bolt and nut, 154, a total grounding mechanism, 155, an aluminum foil connecting block, 156, a silk screen connecting block, 16, a circulation cooling device, 161, a water pump, 162, a liquid inlet and outlet pipe, 163, a first connecting pipe, 164, a one-way valve, 165, a radiator, 166, a second connecting pipe, 167, a connecting column, 168 and a horn frame.
Detailed Description
The present invention will be described in detail below with reference to the drawings, in which like or identical parts are given the same reference numerals, and in which the shape, thickness or height of each component may be enlarged or reduced in practical use. The examples set forth herein are intended to be illustrative of the invention and are not intended to limit the scope of the invention. Any obvious modifications or alterations to the invention, as would be apparent, are made without departing from the spirit and scope of the present invention.
Examples
Referring to fig. 1-7, in the embodiment of the invention, a multi-core combined lightning protection cable comprises a first framework 1, a plurality of fins 3 are fixedly arranged on the inner side of the first framework 1, a second framework 2 is arranged between the fins 3 on the inner side of the first framework 1, the inner space of the first framework 1 is divided into a first circulation cavity 4 and a second circulation cavity 5 by the second framework 2, the first circulation cavity 4 and the second circulation cavity 5 are filled with cooling liquid, a plurality of first electric cores 6 are arranged on the outer side of the first framework 1 in a winding manner, a second electric core 7 is arranged between adjacent first electric cores 6 in a winding manner, the first electric cores 6 comprise an insulating layer and a metal core, the second electric cores 7 comprise an insulating layer and a metal core, an aluminum foil shielding layer 8 is arranged on the outer sides of the first electric cores 6 and the second electric cores 7, a heat insulation layer 9 is arranged on the outer sides of the aluminum foil shielding layer 8, the heat insulation layer 9 is provided with a silk screen braiding layer 10 on the outer side, lubricating oil is smeared on the silk screen braiding layer 10, a plurality of grounding units are arranged on the outer side of the silk screen braiding layer 10, each grounding unit comprises three grounding wires 11, a graphite block 12 is arranged between every two adjacent grounding units, an armor layer 13 is arranged on the outer sides of each grounding unit and each graphite block 12, an outer skin 14 is arranged on the outer sides of each armor layer 13, a wire pressing grounding device 15 and a circulating cooling device 16 are respectively arranged at two ends of a first framework 1, electric conduction is carried out through a first electric core 6 and a second electric core 7, an aluminum foil shielding layer 8 plays a role in primary shielding, the aluminum foil shielding effect on interference is very good, a cable can be lighter and finer, in addition, the aluminum foil can conduct heat rapidly in the longitudinal direction (along the plane direction of the aluminum foil) and has higher thermal resistance in the transverse direction (along the thickness direction of the aluminum foil), the heat generated by the first electric core 6 and the second electric core 7 is easy to be locked in the aluminum foil shielding layer 8, the first framework 1 absorbs the heat on the first electric core 6 and the second electric core 7, the fins 3 increase the heat radiating area on the inner side of the first framework 1, so that the heat can be conveniently and timely radiated outwards, the cooling liquid in the second circulation cavity 5 carries away the heat on the first framework 1 and the fins 3, the cooling liquid in the first circulation cavity 4 cools the cooling liquid in the second circulation cavity 5, the heat radiating efficiency of the cooling liquid in the second circulation cavity 5 is improved, the high-efficiency power transmission of the first electric core 6 and the second electric core 7 is maintained, the heat insulating layer 9 separates the heat on the inner side and the heat outside, the heat transmission does not exist among the first electric core 6, the second electric core 7 and the grounding wire 11, the utility model discloses a wire mesh weaving layer, including first electric core 6, second electric core 7, the wire mesh weaving layer 10 is used for the first electric core 6, the second electric core 7 is influenced when preventing the thunderbolt, the effect of secondary shielding is played to wire mesh weaving layer 10, the butter of smearing on it plays lubricated effect, when preventing that earth connection 11 and wire mesh weaving layer 10 friction, cause wire mesh weaving layer 10 broken wire (prevent wire mesh weaving layer 10 shielding failure or utility reduction), graphite block 12 plays to be connected earth connection 11 and armor 13, the piece that graphite block 12 produced when wearing and tearing can also play lubricated effect in addition, further protect wire mesh weaving layer 10, when the thunderbolt, aluminum foil shielding layer 8 and wire mesh weaving layer 10 resultant force are shielded, reduce induced charge, earth connection 11, armor 13 are led into the lightning stroke underground, make the cable can steady operation, promote the practicality of cable.
The line ball earthing device 15 includes endotheca layer 151, is connected aluminium foil shielding layer 8 and endotheca layer 151 through the aluminium foil connecting block 155 that the symmetry set up, is connected silk screen weaving layer 10 and endotheca layer 151 through silk screen connecting block 156 that the symmetry set up, earth connection 11 and armor 13 extend and install on endotheca layer 151, endotheca layer 151 outside is provided with solid fixed ring 152 relatively, locks two solid fixed rings 152 through bolt nut 153, is provided with total grounding mechanism 154 on one solid fixed ring 152, carries out the earthing treatment with aluminium foil shielding layer 8, silk screen weaving layer 10 in the cable through aluminium foil connecting block 155 and silk screen connecting block 156, and earth connection 11 and armor 13 can collect the ground connection through silk screen weaving layer 10, earth connection 11 and armor 13, utilizes total grounding mechanism 154 to communicate with the earth, realizes fine ground effect, ensures the technical effect of cable lightning protection.
The circulating cooling device 16 comprises a water pump 161 and a horn frame 168, a liquid inlet and outlet pipe 162 matched with the first framework 1 and the second framework 2 is arranged on the left side of the water pump 161 and located on the inner side of the horn frame 168, a radiator 165 is arranged on the right side of the water pump 161, the water pump 161 and the radiator 165 are fixedly connected through four connecting posts 167, the water pump 161 and the radiator 165 are communicated through a plurality of second connecting pipes 166, a liquid inlet and outlet pipe 162 and the radiator 165 are communicated through a plurality of first connecting pipes 163, a one-way valve 164 is arranged on the first connecting pipes 163, cooling liquid in the first circulating cavity 4 and the second circulating cavity 5 is conveniently circulated through the water pump 161, the radiator 165 dissipates heat to the cooling liquid, and the cable power transmission efficiency is conveniently improved.
When the device is used, the first electric core 6 and the second electric core 7 are used for power transmission, the first electric core 6 and the second electric core 7 are supported and thermally conductive by the first framework 1, the first framework 1 is supported and separated by the second framework 2, the inner heat radiating area of the first framework 1 is increased by the fins 3, heat is conveniently and timely dissipated outside, heat on the first framework 1 and the fins 3 is taken away by cooling liquid in the second circulating cavity 5, the cooling liquid in the second circulating cavity 5 is cooled by cooling liquid in the first circulating cavity 4, the heat radiating efficiency of the cooling liquid in the second circulating cavity 5 is improved, the resultant force of the aluminum foil shielding layer 8 and the wire mesh braiding layer 10 is shielded, inductive charges are reduced, then a wire pressing grounding device 15 and a circulating cooling device 16 are arranged at two ends of a cable, an inner sleeve layer 151 is arranged on a sheath 14, the aluminum foil shielding layer 8 and a connecting block 155 are connected together, the wire mesh braiding layer 10 and the wire mesh connecting block 156 are connected together, then the aluminum foil 155 and the inner sleeve 156 are arranged on the inner sleeve 156, then the first circulating core 11 and the wire mesh connecting block 11 are connected with the wire mesh connecting block 11 and the wire mesh connecting block 153, the wire mesh connecting block 153 and the second circulating core 7 are connected with the first circulating core 7 through the first circulating core 7 and the second circulating core 153, the first circulating core and the second circulating core 4 and the second circulating core is connected with the first circulating core and the second circulating core and the first circulating core and the second circulating core and the circulating core.
An insulating protective shell can be arranged between the line pressing grounding device 15 and the circulating cooling device 16, so that the lightning protection effect of the cable is further optimized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511793430.8A CN121237509B (en) | 2025-12-02 | 2025-12-02 | A multi-core combined lightning protection cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511793430.8A CN121237509B (en) | 2025-12-02 | 2025-12-02 | A multi-core combined lightning protection cable |
Publications (2)
| Publication Number | Publication Date |
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| CN121237509A true CN121237509A (en) | 2025-12-30 |
| CN121237509B CN121237509B (en) | 2026-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202511793430.8A Active CN121237509B (en) | 2025-12-02 | 2025-12-02 | A multi-core combined lightning protection cable |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794288A (en) * | 2014-01-16 | 2014-05-14 | 安徽国华电缆集团有限公司 | Anti-lightning power cable |
| CN107293356A (en) * | 2017-06-28 | 2017-10-24 | 代卫东 | A kind of Novel lightning-proof cable |
| CN110010272A (en) * | 2019-05-05 | 2019-07-12 | 安徽国电电缆集团有限公司 | Carbon fiber reinforced composite cable for intelligent industrial robot and its manufacturing process |
| RU205975U1 (en) * | 2021-05-25 | 2021-08-13 | Закрытое акционерное общество "Москабельмет" (ЗАО "МКМ") | FIRE SAFE CABLE WITH INCREASED FLEXIBILITY FOR MOBILE OPERATION IN COLD CLIMATE CONDITIONS |
| CN114156007A (en) * | 2021-12-06 | 2022-03-08 | 奥林特电缆科技股份有限公司 | Cable for charging electric automobile and processing technology |
| CN115985564A (en) * | 2022-12-09 | 2023-04-18 | 无锡市林德电缆有限公司 | Enhanced heat dissipation type charging cable for new energy automobile and preparation method thereof |
| CN119418999A (en) * | 2025-01-07 | 2025-02-11 | 山东九州电力线缆有限公司 | A high temperature resistant expanded diameter wire and a manufacturing method thereof |
-
2025
- 2025-12-02 CN CN202511793430.8A patent/CN121237509B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794288A (en) * | 2014-01-16 | 2014-05-14 | 安徽国华电缆集团有限公司 | Anti-lightning power cable |
| CN107293356A (en) * | 2017-06-28 | 2017-10-24 | 代卫东 | A kind of Novel lightning-proof cable |
| CN110010272A (en) * | 2019-05-05 | 2019-07-12 | 安徽国电电缆集团有限公司 | Carbon fiber reinforced composite cable for intelligent industrial robot and its manufacturing process |
| RU205975U1 (en) * | 2021-05-25 | 2021-08-13 | Закрытое акционерное общество "Москабельмет" (ЗАО "МКМ") | FIRE SAFE CABLE WITH INCREASED FLEXIBILITY FOR MOBILE OPERATION IN COLD CLIMATE CONDITIONS |
| CN114156007A (en) * | 2021-12-06 | 2022-03-08 | 奥林特电缆科技股份有限公司 | Cable for charging electric automobile and processing technology |
| CN115985564A (en) * | 2022-12-09 | 2023-04-18 | 无锡市林德电缆有限公司 | Enhanced heat dissipation type charging cable for new energy automobile and preparation method thereof |
| CN119418999A (en) * | 2025-01-07 | 2025-02-11 | 山东九州电力线缆有限公司 | A high temperature resistant expanded diameter wire and a manufacturing method thereof |
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| CN121237509B (en) | 2026-03-31 |
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