CN219349859U - Sheath cooling type power cable - Google Patents
Sheath cooling type power cable Download PDFInfo
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- CN219349859U CN219349859U CN202320574045.4U CN202320574045U CN219349859U CN 219349859 U CN219349859 U CN 219349859U CN 202320574045 U CN202320574045 U CN 202320574045U CN 219349859 U CN219349859 U CN 219349859U
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Abstract
The utility model discloses a jacket cooling type power cable, which belongs to the technical field of cables, and comprises a coaxial structure as a main body, a corrugated outer sleeve layer, an outer protective layer and a sealing layer, wherein a first cavity is formed in the sealing layer, a power cable is arranged in the first cavity, a gap between the sealing layer and the power cable is used for containing cooling liquid, the power cable comprises an isolation layer, an insulating layer and a wire core, and a plurality of connecting pieces are arranged between the outer wall of the isolation layer and the sealing layer.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a sheath cooling type power cable.
Background
Power cables typically carry high power operations and when the cable is overloaded, the cable core is overheated, which can easily cause accelerated aging of the insulation, causing failure of the cable or power supply system.
In the new energy automobile, the high-voltage power cable is connected with the power battery, the inverter, the electric control and the motor in series, is a core component for the power operation and the control of the new energy automobile, and the battery, the inverter, the electric control and the motor all need proper working temperature intervals.
In order to control the working temperature of a battery, an inverter, an electric control or a motor, the current mainstream mode is to compensate the temperature by means of cooling liquid circulation, namely, cooling operation is carried out on a component at high temperature by means of cooling liquid, and when required, heating operation is also carried out on a low-temperature component by means of cooling liquid circulation; generally, the working heating components (such as an inverter and a motor) are used for carrying out proper heating operation on the environment low-temperature components (such as a battery), so that on one hand, the two components can work more stably, and on the other hand, the energy consumption caused by heating or refrigerating operation can be reduced;
in order to ensure the stability of the power cable, a thicker insulating structure is often arranged, and the structure is unfavorable for heat dissipation of the power cable, and long-term high-power work is difficult to ensure.
Disclosure of Invention
The utility model aims to provide a jacket cooling type power cable so as to improve the working stability and the service life of the power cable under long-time high-power operation.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides a sheath cooled power cable, the main part is coaxial type structure, includes ripple jacket layer, outer sheath and sealing layer, the inside first cavity that is equipped with of sealing layer, power cable has been arranged to first cavity inside, the space between sealing layer and the power cable is used for holding coolant liquid, power cable includes insulating layer, insulating layer and sinle silk, a plurality of connecting pieces have been arranged between insulating layer outer wall and the sealing layer.
Further, the outer wall of the corrugated outer sleeve layer is provided with yellow coating.
Further, a spiral support is arranged inside the sealing layer.
Further, the cooling liquid is polyester-grade glycol cooling liquid, glycerol-type cooling liquid or fluoridation cooling liquid.
Further, the cooling liquid has a color development structure.
Further, the connecting piece is a nylon or polypropylene filament braided stay rope structure.
Further, the connecting pieces are circumferentially arranged at intervals of 120 degrees.
Further, a traction structure is arranged inside the isolation layer.
Adopt this scheme, compare prior art, have following benefit:
according to the sheath cooling type power cable, the main body wraps cooling liquid on the periphery of the power cable in a sheath structure, so that the power cable and the cooling liquid are conveyed in the same cable, the circulating structure of a high-voltage direct-current double-wire cable can be matched, and long-term high-power operation of the power cable can be ensured;
the scheme can realize the cold and hot circulation operation of the cooling liquid, and is matched with a heat management system and peripheral heating or heat dissipation equipment, so that the heat utilization and heat control management of a battery, an inverter, an electric control or a motor can be controlled in a new energy automobile, the utilization efficiency and the accurate heat management of heat energy are greatly provided, the structure is simple, the installation and the use are convenient, the number of parts and the installation structure can be reduced, the sealing idea and the strength structure of the automobile body can be provided, and the positive effect is realized;
in order to provide the sealing and isolating effects of the cooling liquid, an isolating layer is arranged on the outer wall of the power cable, a sealing layer is arranged on the outer wall of the first cavity, and a spiral bracket is arranged in the sealing layer, so that the sealing and supporting effects of the pipeline are realized, the installability of the structure is improved, and the diameter of the pipeline is reduced;
in order to better enable the cooling liquid to smoothly flow, particularly under the condition that the cable is arranged to have certain bending, a plurality of connecting pieces which are 120-ring-arranged traction structures are arranged between the outer wall of the isolation layer and the sealing layer, so that even if the cable is moderately bent, the interface area of the cooling liquid flowing can not be obviously reduced.
Drawings
Fig. 1 is a schematic overall structure of a preferred embodiment.
Fig. 2 is an exploded view of the layered structure of the cable.
Fig. 3 is a schematic cross-sectional structure of a cable.
Detailed Description
Referring to fig. 1, 2 and 3, a jacket cooling type power cable has a coaxial main body structure, which comprises a corrugated outer jacket layer 11, an outer jacket layer 12 and a sealing layer 13, wherein the inner part of the sealing layer 13 is provided with a first cavity 10, the power cable 2 is coaxially arranged in the first cavity 10, and a gap between the sealing layer 13 and the power cable 2 is used for accommodating cooling liquid.
The corrugated outer wall structure of the corrugated outer layer 11 can provide structural strength of the pipeline, particularly when the cable passes through the hole, cutting of the metal piece to the corrugated outer wall structure can be reduced, and the yellow coating is arranged on the outer wall of the corrugated outer layer 11, so that the corrugated outer wall structure can play roles in warning and convenient identification.
The cooling liquid is polyester-grade glycol cooling liquid, glycerol-type cooling liquid or fluorinated cooling liquid, particularly can be selected as fluorinated cooling liquid, has the characteristics of low freezing point, high boiling point, high heat conduction efficiency and non-conduction, is particularly suitable for being used on new energy automobiles, is particularly suitable for being arranged coaxially with the power cable 2, can be placed with certain pigment or fuel when necessary, and has a color development structure like green or purple, so that the cooling liquid can be well identified in case of leakage.
The power cable 2 comprises an insulating layer 21, an insulating layer 22 and a wire core 23, wherein the insulating layer 21 is used for insulating cooling liquid and has the characteristic of preventing permeation of the cooling liquid, a circle of traction wires are arranged inside the insulating layer 22 and can play a role in traction and improve the strength of pulling resistance, the insulating layer 22 is used for playing an insulating role and preventing breakdown under the condition of high voltage, and the wire core 23 is usually a plurality of twisted copper wires and is used for conveying high-voltage direct current.
The spiral support 14 is arranged in the sealing layer 13, and the spiral support 14 can be made of stainless steel, has the characteristics of good elasticity and corrosion resistance, plays a supporting role, prevents the cable from being sunken or bent under the bending condition, and can ensure the smooth flow of the cooling liquid in the cable and prevent the situation of blockage and the like;
in order to better ensure the flow of the cooling liquid and enable the pipeline to run smoothly, a plurality of connecting pieces 15 are uniformly arranged between the isolation layer 21 and the sealing layer 13 at intervals, the connecting pieces 15 are of nylon or polypropylene filament woven inhaul cable structures, the corrosion resistance and the structural strength are good, the connecting pieces are in a 15-interval 120-degree encircling arrangement state, the power cable 2 can be ensured to be always positioned near the central line of the first cavity 10 under the condition that the cable is slightly bent and routed, and therefore the situation that the first cavity 10 is excessively extruded and the cooling liquid flows unsmoothly can be prevented.
In actual installation, the interfaces 3 are respectively installed at two ends of the cable, wherein the power cable 2 is led out from the front end in a straight line, and the cooling liquid is connected by the cooling liquid port 31 at the interface 3, so that the installation efficiency and the sealing effect can be greatly improved.
In summary, according to the sheath cooling type power cable, the main body wraps the cooling liquid on the periphery of the power cable in a sheath structure, so that the power cable and the cooling liquid can be conveyed in the same cable, and the sheath cooling type power cable can be matched with a circulating structure of a high-voltage direct-current double-wire cable, so that long-term high-power operation of the power cable can be ensured;
the scheme can realize the cold and hot circulation operation of the cooling liquid, and is matched with a heat management system and peripheral heating or heat dissipation equipment, so that the heat utilization and heat control management of a battery, an inverter, an electric control or a motor can be controlled in a new energy automobile, the utilization efficiency and the accurate heat management of heat energy are greatly provided, the structure is simple, the installation and the use are convenient, the number of parts and the installation structure can be reduced, the sealing idea and the strength structure of the automobile body can be provided, and the positive effect is realized;
in order to provide the sealing and isolating effects of the cooling liquid, an isolating layer is arranged on the outer wall of the power cable, a sealing layer is arranged on the outer wall of the first cavity, and a spiral bracket is arranged in the sealing layer, so that the sealing and supporting effects of the pipeline are realized, the installability of the structure is improved, and the diameter of the pipeline is reduced;
in order to better enable the cooling liquid to smoothly flow, particularly under the condition that the cable is arranged to have certain bending, a plurality of connecting pieces which are 120-ring-arranged traction structures are arranged between the outer wall of the isolation layer and the sealing layer, so that even if the cable is moderately bent, the interface area of the cooling liquid flowing can not be obviously reduced.
Claims (8)
1. The utility model provides a sheath cooling type power cable, the main part is coaxial type structure, its characterized in that: including ripple jacket layer, outer sheath and sealing layer, the inside first cavity that is equipped with of sealing layer, power cable has been arranged to first cavity inside, the space between sealing layer and the power cable is used for holding coolant liquid, power cable includes insulating layer, insulating layer and sinle silk, a plurality of connecting pieces have been arranged between insulating layer outer wall and the sealing layer.
2. A jacket-cooled power cable as claimed in claim 1, wherein: the outer wall of the corrugated outer sleeve layer is provided with yellow coating.
3. A jacket-cooled power cable as claimed in claim 1, wherein: and a spiral bracket is arranged inside the sealing layer.
4. A jacket-cooled power cable as claimed in claim 1, wherein: the cooling liquid is polyester-grade glycol cooling liquid, glycerol-type cooling liquid or fluoridation cooling liquid.
5. The jacket-cooled power cable of claim 4, wherein: the cooling liquid has a color development structure.
6. A jacket-cooled power cable as claimed in claim 1, wherein: the connecting piece is of a nylon or polypropylene filament braided inhaul cable structure.
7. A jacket-cooled power cable as claimed in claim 1, wherein: the connectors are circumferentially arranged at 120-degree intervals.
8. A jacket-cooled power cable as claimed in claim 1, wherein: and a traction structure is arranged inside the isolation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320574045.4U CN219349859U (en) | 2023-03-22 | 2023-03-22 | Sheath cooling type power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320574045.4U CN219349859U (en) | 2023-03-22 | 2023-03-22 | Sheath cooling type power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219349859U true CN219349859U (en) | 2023-07-14 |
Family
ID=87108871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320574045.4U Active CN219349859U (en) | 2023-03-22 | 2023-03-22 | Sheath cooling type power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219349859U (en) |
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2023
- 2023-03-22 CN CN202320574045.4U patent/CN219349859U/en active Active
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