CN113161069A - Copper pipe cooling high current-carrying cable - Google Patents
Copper pipe cooling high current-carrying cable Download PDFInfo
- Publication number
- CN113161069A CN113161069A CN202110465819.5A CN202110465819A CN113161069A CN 113161069 A CN113161069 A CN 113161069A CN 202110465819 A CN202110465819 A CN 202110465819A CN 113161069 A CN113161069 A CN 113161069A
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- CN
- China
- Prior art keywords
- cable
- heat conduction
- cooling channel
- cooling
- high current
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 49
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 22
- 239000010949 copper Substances 0.000 title claims abstract description 22
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 230000008093 supporting effect Effects 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 28
- 239000002131 composite material Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910001651 emery Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cables, and provides a copper pipe cooling high-current-carrying cable which comprises a cable core and a protective layer coated outside the cable core, wherein a heat conduction sleeve and a cooling channel are arranged between the cable core and the protective layer from inside to outside, a plurality of heat conduction heads which are mutually spaced are uniformly distributed on the outer diameter surface of the heat conduction sleeve in the circumferential direction, and the heat conduction heads protrude outwards and extend into the cooling channel to form a supporting framework for supporting the inner wall of the cooling channel. According to the invention, the heat conduction sleeve is coated on the outer side of the cable core, heat is transferred into the cooling channel through the raised heat conduction head, and the heat conduction head has two functions, so that the purposes of directly contacting a cooling medium with a heat source and improving the cooling efficiency are realized, and the raised heat conduction head also has the same supporting effect as a reinforcing rib on the cooling channel.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a copper pipe cooling high-current-carrying cable.
Background
The current-carrying capacity of the cable is the amount of current passed by a cable line when the cable conductor is used for transmitting electric energy, and the current-carrying capacity when the cable conductor reaches a long-term allowable working temperature under a thermal stability condition is called the long-term allowable current-carrying capacity of the cable, namely the current-carrying capacity is the maximum current which can be continuously carried by the conductor under a specified condition without enabling the stable temperature of the conductor to exceed a specified value. Therefore, the current-carrying capacity of the cable is directly related to the thermal stability condition of the cable, and if the current-carrying capacity of the cable is increased, the thermal stability condition of the cable is inevitably improved. In general, the main technical measures taken to increase the current carrying capacity of a cable include: the sectional area of the conductor is increased, the insulation temperature-resistant grade of the cable is improved, the ambient temperature of the cable is reduced, and the like.
The prior patent "CN 208422492U" has patent names: the cable core mainly comprises a plurality of insulated conductors formed by twisting and filling structural members filled in all twisting gaps, each filling structural member is provided with a framework body matched with the outline of the corresponding twisting gap on the cable core, and a cooling channel with a through hole structure is arranged in the length direction of the framework body. This application is favorable to realizing good cooling effect and improves the carrying capacity. However, since the coating case is provided between the cooling medium and the cable core, the cooling medium cannot achieve the cooling effect to the maximum extent, and thus further improvement in the utilization efficiency of the cooling medium is desired.
Disclosure of Invention
The invention aims to provide a copper pipe cooling high-current-carrying cable to solve the problem of the prior art.
The embodiment of the invention is realized by the following technical scheme:
the utility model provides a copper pipe cooling high current-carrying cable, includes cable core and the protective layer of cladding outside the cable core, is provided with heat conduction cover and cooling channel from inside to outside between cable core and the protective layer, and the external diameter circumference equipartition of heat conduction cover has a plurality of heat conduction heads of mutual interval, heat conduction head toward outer arch and extend to the cooling channel and form the support skeleton that is used for supporting the cooling channel inner wall.
Furthermore, the outer diameter of the supporting framework gradually expands from the side close to the heat conducting sleeve to the side far away from the heat conducting sleeve.
Furthermore, a temperature measuring optical fiber is arranged in the cooling channel.
Furthermore, the heat conducting head penetrates through the pipe wall of the cooling channel, and the pipe wall of the cooling channel is sealed with the heat conducting head in a hot welding mode.
Further, the cable core sequentially comprises a conductor, a conductor shielding layer, an insulating layer and an insulating shielding layer from inside to outside.
Further, the protective layer sequentially comprises a copper-plastic composite belt layer, a non-woven fabric belting layer and a sheath layer from inside to outside.
Further, the cooling medium filled in the cooling channel is cold air or cooling liquid.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
according to the invention, the heat conduction sleeve is coated on the outer side of the cable core, heat is transferred into the cooling channel through the raised heat conduction head, and the heat conduction head has two functions, so that the purposes of directly contacting a cooling medium with a heat source and improving the cooling efficiency are realized, and the raised heat conduction head also has the same supporting effect as a reinforcing rib on the cooling channel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a copper pipe-cooled high current-carrying cable according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a thermally conductive sleeve;
FIG. 3 is a front view of a production facility for producing copper tube-cooled high current carrying cables according to embodiment 2 of the present invention;
FIG. 4 is a schematic view of the grinding mechanism;
fig. 5 is a side view of the connection of the inner dial and outer dial.
Icon: 1-cable core, 101-conductor, 102-conductor shielding layer, 103-insulating layer, 104-insulating shielding layer, 2-protective layer, 201-copper-plastic composite belt layer, 202-non-woven fabric belting layer, 203-sheathing layer, 3-heat conducting sleeve, 4-cooling channel, 5-temperature measuring optical fiber, 6-heat conducting head, 7-paying-off roller, 8-take-up roller, 9-grinding mechanism, 901-internal connection disc, 902-external rotation disc, 903-bearing, 904-motor, 905-driving gear, 906-gear ring, 907-connector, 908-sliding sleeve, 909-anti-falling convex end, 910-grinding wheel, 911-sliding rod and 912-spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 2, the embodiment provides a copper pipe cooled high current carrying cable, which includes a cable core 1 and a protective layer 2 coated outside the cable core 1, where the cable core 1 sequentially includes a conductor 101, a conductor shielding layer 102, an insulating layer 103, and an insulating shielding layer 104 from inside to outside, the conductor 101 is composed of a 1 st copper/aluminum conductor 101, a 2 nd copper/aluminum conductor 101, or a 5 th soft copper conductor 101 in the national standard GB/T3956, the conductor shielding layer 102, the insulating layer 103, and the insulating shielding layer 104 all adopt ultra-high voltage grade model specifications, the outer diameter surface of the insulating shielding layer 104 is coated with a heat conducting sleeve 3, the outer diameter surface of the heat conducting sleeve 3 is coated with a cooling channel 4 for transmitting cooling liquid or cooling air, and a temperature measuring optical fiber 5 is further disposed in the cooling channel 4 to monitor the temperature of the cable core 1. The external diameter circumference equipartition of heat conduction cover 3 has a plurality of heat conduction heads 6 of mutual interval, cooling channel 4's passageway lateral wall corresponds every heat conduction head 6 and is provided with the through hole, heat conduction head 6 is toward outer arch and extend to the interior support skeleton that is used for supporting cooling channel 4 inner wall that forms of cooling channel 4 through the through hole, and the mode through the hot melt connection between heat conduction head 6 and the pipe wall of cooling channel 4 forms sealedly, the external diameter of support skeleton is from being close to heat conduction cover 3 one side and toward keeping away from heat conduction cover 3 one side and expand gradually, is the form triangle-shaped appearance to increase the support to cooling channel 4 inner wall, play the purpose of certain resistance to compression shape of preapring for an unfavorable turn of events. The protective layer 2 comprises a copper-plastic composite belt layer 201, a non-woven fabric belting layer 202 and a sheath layer 203 from inside to outside in sequence.
It can be known from the above-mentioned content, the high current-carrying cable of copper pipe cooling that this embodiment provided, through at 1 outside cladding heat conduction cover 3 of cable core, and in 3 external diameter faces go up bellied heat conduction head 6 with heat transfer to cooling channel 4, heat conduction head 6 "has two functions simultaneously, not only realize that coolant directly contacts with the heat source, improve cooling efficiency's purpose, bellied heat conduction head 6 has still played the same support effect of strengthening rib to cooling channel 4 moreover, make cooling channel 4 play the effect of certain resistance to compression resistance to deformation.
Example 2
In the production process of the cable, the cable needs to be subjected to forming and grinding treatment so as to improve the connection performance between the cable and the packaging and connecting components. In the present processing and production process, a large amount of manpower is generally used to grind the outer skin of the cable, and the method is low in efficiency, so as to refer to fig. 3 to 5, this embodiment provides a production apparatus for producing a copper pipe cooling high current-carrying cable, which is used to grind the outer skin of the cable, and includes a pay-off roller 7, a take-up roller 8 and a grinding mechanism 9, the grinding mechanism 9 is disposed between the pay-off roller 7 and the take-up roller 8, the grinding mechanism 9 includes an inner dial 901 and an outer dial 902, the outer dial 902 is connected to the outer diameter surface of the inner dial 901 through a bearing 903, so that the outer dial 902 can freely rotate on the inner dial 901, a threading hole for the cable to pass through is arranged in the center of the inner dial 901, and the inner diameter of the threading hole is the same as the outer diameter of a standard cable. An end seat is integrally formed on the left end face of the inner flange 901, a motor 904 is fixedly mounted on the end seat, and the output end of the motor 904 is connected with a driving gear 905. The left end face of the outer turntable 902 is provided with a ring of gear ring 906, the driving gear 905 is meshed with the gear ring 906, the driving gear 905 is driven to rotate through the motor 904, and therefore the outer turntable 902 is driven to rotate through the meshing of the driving gear 905 and the gear ring 906. The grinding assembly comprises a connector 907, a sliding sleeve 908, a sliding rod 911 and a grinding wheel 910, wherein the connector 907 is sleeved on a stand column on the right end face of the outer turntable 902 and fixed through a nut, the sliding sleeve 908 is arranged towards the circle center along the diameter direction of the outer turntable 902, the sliding rod 911 is slidably mounted in the sliding sleeve 908 and limited in the ring sleeve through an anti-falling convex end 909 so as not to fall off, a spring 912 is fixedly connected between the anti-falling convex end 909 and the inner bottom face of the sliding sleeve 908, the grinding wheel 910 is mounted on one side, opposite to the anti-falling convex end 909, of the sliding rod 911 through pivot rotation, and the outer diameter of the cam is tangent to the outer diameter of the threading hole under the free state of the spring 912.
It can be known from the above, the production equipment for producing copper pipe cooling high current carrying cables provided by this embodiment has the working principle that:
the cable conductor passes from the through wires hole, start motor 904, when the cable conductor can't pass through the through wires hole, it explains that the external diameter of cable conductor is greater than the diameter of through wires hole, the cable conductor is nonstandard, thereby the cable conductor external diameter is slightly big at this moment and pushes emery wheel 910 along with slide bar 911 towards the sliding sleeve 908 inboard together, rotate at motor 904 and drive outward turning plate 902 and rotate, then outward turning plate 902 just drives grinding assembly and rotates, thereby polish to the periphery wall of cable conductor, along with going on of polishing, the external diameter of cable conductor is littleer and more, then spring 912 pushes away slide bar 911 and emery wheel 910 outwards, make emery wheel 910 polish with the cable conductor contact all the time, it recovers the original length to polish to spring 912, the cable conductor has reached standard requirement at this moment, alright through the through wires hole, accomplish and polish.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a copper pipe cooling high current-carrying cable, includes cable core (1) and cladding protective layer (2) outside cable core (1), its characterized in that: the cable comprises a cable core (1) and a protective layer (2), wherein a heat conduction sleeve (3) and a cooling channel (4) are arranged between the cable core and the protective layer from inside to outside, a plurality of heat conduction heads (6) which are spaced from each other are uniformly distributed on the circumferential direction of the outer diameter surface of the heat conduction sleeve (3), and the heat conduction heads (6) protrude outwards and extend into the cooling channel (4) to form a supporting framework for supporting the inner wall of the cooling channel (4).
2. The copper tube cooled high current carrying cable of claim 1, wherein: the outer diameter of the supporting framework gradually expands from one side close to the heat conducting sleeve (3) to one side far away from the heat conducting sleeve (3).
3. The copper tube cooled high current carrying cable of claim 1, wherein: a temperature measuring optical fiber (5) is arranged in the cooling channel (4).
4. The copper tube cooled high current carrying cable of claim 1, wherein: the heat conducting head (6) penetrates through the pipe wall of the cooling channel (4), and the pipe wall of the cooling channel (4) is sealed with the heat conducting head (6) in a thermal welding mode.
5. The copper tube cooled high current carrying cable of claim 1, wherein: the cable core (1) sequentially comprises a conductor (101), a conductor shielding layer (102), an insulating layer (103) and an insulating shielding layer (104) from inside to outside.
6. The copper tube cooled high current carrying cable of claim 1, wherein: the protective layer (2) comprises a copper-plastic composite belt layer (201), a non-woven fabric wrapping belt layer (202) and a sheath layer (203) from inside to outside in sequence.
7. The copper tube cooled high current carrying cable of claim 1, wherein: the cooling medium filled in the cooling channel (4) is cold air or cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465819.5A CN113161069A (en) | 2021-04-28 | 2021-04-28 | Copper pipe cooling high current-carrying cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465819.5A CN113161069A (en) | 2021-04-28 | 2021-04-28 | Copper pipe cooling high current-carrying cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113161069A true CN113161069A (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110465819.5A Pending CN113161069A (en) | 2021-04-28 | 2021-04-28 | Copper pipe cooling high current-carrying cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113161069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822968A (en) * | 2022-04-28 | 2022-07-29 | 海南中坚电缆科技有限公司 | Cable cooling device |
| CN116072338A (en) * | 2023-04-06 | 2023-05-05 | 亚星线缆集团有限公司 | Submarine ultrahigh-voltage cable with temperature measuring unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0982143A (en) * | 1995-09-13 | 1997-03-28 | Chubu Electric Power Co Inc | Power cable with cooling passage |
| CN106782811A (en) * | 2016-12-03 | 2017-05-31 | 安徽中润电缆集团股份有限公司 | A kind of multicore resistance to compression high-temperature cable |
| CN110473661A (en) * | 2019-09-10 | 2019-11-19 | 远东电缆有限公司 | A kind of high-power charging pile cable and its production technology |
| CN210091777U (en) * | 2019-08-06 | 2020-02-18 | 广东天虹电缆有限公司 | New energy automobile charges and uses heat dissipation cable |
| CN212365591U (en) * | 2020-05-28 | 2021-01-15 | 深圳市长盈通精密电子有限公司 | Low inductance direct current distribution cable |
-
2021
- 2021-04-28 CN CN202110465819.5A patent/CN113161069A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0982143A (en) * | 1995-09-13 | 1997-03-28 | Chubu Electric Power Co Inc | Power cable with cooling passage |
| CN106782811A (en) * | 2016-12-03 | 2017-05-31 | 安徽中润电缆集团股份有限公司 | A kind of multicore resistance to compression high-temperature cable |
| CN210091777U (en) * | 2019-08-06 | 2020-02-18 | 广东天虹电缆有限公司 | New energy automobile charges and uses heat dissipation cable |
| CN110473661A (en) * | 2019-09-10 | 2019-11-19 | 远东电缆有限公司 | A kind of high-power charging pile cable and its production technology |
| CN212365591U (en) * | 2020-05-28 | 2021-01-15 | 深圳市长盈通精密电子有限公司 | Low inductance direct current distribution cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822968A (en) * | 2022-04-28 | 2022-07-29 | 海南中坚电缆科技有限公司 | Cable cooling device |
| CN114822968B (en) * | 2022-04-28 | 2023-09-15 | 海南中坚电缆科技有限公司 | Cable cooling device |
| CN116072338A (en) * | 2023-04-06 | 2023-05-05 | 亚星线缆集团有限公司 | Submarine ultrahigh-voltage cable with temperature measuring unit |
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Application publication date: 20210723 |