CN114864144B - Charging cable and charging device - Google Patents
Charging cable and charging device Download PDFInfo
- Publication number
- CN114864144B CN114864144B CN202210446964.3A CN202210446964A CN114864144B CN 114864144 B CN114864144 B CN 114864144B CN 202210446964 A CN202210446964 A CN 202210446964A CN 114864144 B CN114864144 B CN 114864144B
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- Prior art keywords
- charging cable
- cooling fluid
- insulating
- cavity
- cooling liquid
- Prior art date
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- 239000004020 conductor Substances 0.000 claims abstract description 100
- 239000000110 cooling liquid Substances 0.000 claims abstract description 77
- 239000012809 cooling fluid Substances 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
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- 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
- H01B7/02—Disposition of insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
-
- 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
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses a charging cable and a charging device, wherein the charging cable comprises an insulating coating, a grounding wire and at least two conductors, wherein a cavity is formed in the insulating coating along the axial direction, and a cooling liquid channel is formed in the cavity; the grounding wire is embedded in the insulating outer quilt; at least two conductors are disposed within the cooling fluid channel. According to the technical scheme, the cable diameter of the charging cable is reduced, and the daily use convenience of the charging cable is improved.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a charging cable and a charging device.
Background
With the rapid development of new energy technology, new energy automobiles are becoming more popular. The charging requirements of users on automobiles are also higher and higher, wherein the charging speed becomes an important attention index, and the high-power charging technology is gradually developed.
However, in the charging system of the automobile, the larger the charging power of the automobile, the higher the demand for the cable diameter of the charging cable, which tends to make the cable diameter very large, which is very inconvenient for daily use.
Disclosure of Invention
The invention mainly aims to provide a charging cable, which aims to reduce the cable diameter of the charging cable and improve the daily use convenience of the charging cable.
In order to achieve the above object, the present invention provides a charging cable, comprising:
the insulating coating is axially provided with a cavity, and a cooling liquid channel is formed in the cavity;
the grounding wire is embedded in the insulating outer quilt; and
and at least two conductors arranged in the cooling liquid channel.
Optionally, the ground wire includes a plurality of ground sub-wires, and a plurality of ground sub-wires are embedded in the insulating outer cover at intervals.
Optionally, the grounding sub-wires are uniformly embedded in the insulating outer cover.
Optionally, the ground wire and the insulating coating are integrally formed.
Optionally, the ground wire is a bare wire.
Optionally, the charging cable further includes an insulating layer disposed in the cavity and dividing the cavity into the cooling liquid channel and a receiving cavity, where the receiving cavity is used for receiving a signal wire.
Optionally, the cooling liquid channel includes a first cooling liquid channel and a second cooling liquid channel, the first cooling liquid channel and the second cooling liquid channel are separated by the insulating layer so as to be independent, the conductor includes at least one positive conductor and at least one negative conductor, and the positive conductor and the negative conductor are respectively located in the first cooling liquid channel and the second cooling liquid channel.
Optionally, one of the first cooling liquid channel and the second cooling liquid channel is a liquid inlet channel of the cooling liquid, and the other one of the first cooling liquid channel and the second cooling liquid channel is a liquid outlet channel of the cooling liquid.
Optionally, the cooling liquid channel and the accommodating cavity are both fan-shaped.
The invention also provides a charging device comprising the charging cable.
According to the technical scheme, the grounding wire is embedded into the insulating coating, so that compared with the scheme that the grounding wire is arranged in the cavity of the charging cable in the prior art, the radial space of the insulating coating is utilized, the space for arranging the grounding wire in the cavity is saved, the cable diameter of the charging cable is reduced, the overall quality of the charging cable is reduced, and the daily use convenience of the charging cable is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an embodiment of a charging cable according to the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Insulating outer cover | 40 | Signal line |
| 20 | Cavity cavity | 50 | Conductor |
| 21 | Cooling liquid channel | 51 | Positive conductor |
| 211 | First cooling liquid channel | 52 | Negative conductor |
| 212 | Second cooling liquid channel | 60 | Grounding wire |
| 22 | Accommodating cavity | 61 | Grounding sub-line |
| 30 | Insulating layer |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, "and/or" throughout this document includes three schemes, taking a and/or B as an example, including a technical scheme, a technical scheme B, and a technical scheme that both a and B satisfy; in addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
With the rapid development of new energy technology, new energy automobiles are becoming more popular. The charging requirements of users on automobiles are also higher and higher, wherein the charging speed becomes an important attention index, and the high-power charging technology is gradually developed.
However, in the charging system of the automobile, the larger the charging power of the automobile, the higher the demand for the cable diameter of the charging cable, which tends to make the cable diameter very large, which is very inconvenient for daily use.
In view of this, the present invention proposes a charging cable.
Referring to fig. 1, in an embodiment of the present invention, the charging cable includes an insulating jacket 10, a ground wire 60, and at least two conductors 50. The insulating outer cover 10 is axially provided with a cavity 20, and a cooling liquid channel 21 is formed in the cavity 20; the grounding wire 60 is embedded in the insulating outer cover 10; at least two conductors 50 are provided within the cooling fluid channel 21.
Specifically, the insulating outer cover 10 is the outermost layer of the charging cable, which provides protection and protection of the outermost layer for use of the charging cable. The charging cable has a certain length, and the insulating cover 10 is formed with a cavity 20 along an axial direction of the charging cable, and the cavity 20 accommodates a conductor 50 therein. The insulating coating 10 provides protection for the conductor 50 from damage to the conductor 50 and also avoids the electrical hazards caused by leakage of the conductor 50. The insulating cover 10 also has a certain thickness to ensure the structural strength of the insulating cover 10, so as to realize the protection of the components in the cavity 20. The insulating coating 10 is made of insulating material, and may be PVC, TPE, TPU, rubber, etc. The insulating cover 10 is generally circular in cross-sectional shape, which facilitates the formation of the cavity 20 to facilitate the coating of cables such as the conductors 50 within the cavity 20. A cooling fluid passage 21 is formed in the cavity 20, and the cooling fluid passage 21 is used for flowing cooling fluid. During use of the charging cable, the conductor 50 generates a significant amount of heat which, if not timely expelled, can cause the cable to overheat, thereby easily causing a fire. The coolant may be used to dissipate heat from the conductor 50, avoiding excessive temperatures of the charging cable during use.
At least two conductors 50 are provided in the cooling fluid channel 21, the conductors 50 being of an electrically conductive material, in one embodiment the conductors 50 being of metallic copper. The conductor 50 is used for making electrical connection with an external charging device to form a charging circuit. In general, the conductors 50 are provided with two positive conductors 51 and negative conductors 52, respectively, the positive conductors 51 being used for connection with the positive poles of the external devices, and the negative conductors 52 being used for connection with the negative poles of the external devices, so that a conductive circuit is formed between the charging cable and the external devices. The positive conductor 51 and the negative conductor 52 may be provided in one or more than one. That is, the positive conductor 51 and the negative conductor 52 may be one wire formed by integrating a plurality of wire bundles, or may be a plurality of split wires. When a strong current carrying capability is required for conductor 50, a positive conductor 51 formed from a multi-strand bundle and a negative conductor 52 formed from a multi-strand bundle may be selected. The conductor 50 extends in the axial direction of the insulating cover 10 and is exposed from the insulating cover 10 to be electrically connected with the cover apparatus. The conductor 50 is arranged in the cooling liquid channel 21, and the conductor 50 is timely radiated by utilizing the flow of the cooling liquid, so that the overheating of the conductor 50 is avoided, and the use safety of the charging cable is ensured.
The ground wire 60 is embedded in the insulating cover 10, and the ground wire 60 is also called a safety return line, so that high voltage can be directly transferred to the ground in case of danger, thereby avoiding electric shock to a user. The insulating cover 10 has a certain thickness, and the ground wire 60 is embedded in the insulating cover 10. Compared with the prior art that the grounding wire 60 is arranged in the cavity 20 of the insulating outer cover 10, the invention embeds the grounding wire 60 in the insulating outer cover 10, thereby saving the space in the cavity 20, further reducing the cable diameter of the charging cable, reducing the overall quality of the charging cable and facilitating the daily use of the charging cable.
According to the technical scheme, the grounding wire 60 is embedded into the insulating coating 10, so that compared with the scheme that the grounding wire 60 is arranged in the cavity 20 of the charging cable in the prior art, the radial space of the insulating coating 10 is utilized, the space for arranging the grounding wire 60 in the cavity 20 is saved, the cable diameter of the charging cable is reduced, the overall quality of the charging cable is reduced, and the daily use convenience of the charging cable is improved.
Further, the ground wire 60 includes a plurality of ground sub-wires 61, and the plurality of ground sub-wires 61 are embedded in the insulating cover 10 at intervals. Specifically, the ground wire 60 is split into a plurality of ground sub-wires 61, and the plurality of ground sub-wires 61 are embedded in the insulating cover 10 at intervals along the circumferential direction of the charging cable. In this way, the arrangement of the plurality of ground sub-wires 61 allows the thickness of the insulating cover 10 to be further reduced, thereby further reducing the cable diameter of the charging cable, compared to a single ground wire. In the embodiment shown in the present invention, the ground line 60 is split into 12 ground sub-lines 61, and of course, the ground sub-lines 61 may be 10, 14, etc., which is not limited herein. In some embodiments, the thickness of the insulating cover 10 has a minimum thickness value, when the diameter of the ground sub-line 61 is slightly smaller than the minimum thickness value of the insulating cover 10, it is ensured that the ground sub-line 61 is embedded in the insulating cover 10 without being exposed, while also avoiding infinite splitting of the ground sub-line 61.
Further, the plurality of grounding sub-wires 61 are uniformly spaced and embedded in the insulating cover 10. Specifically, the plurality of grounding sub-wires 61 are uniformly embedded in the insulating outer cover 10 along the circumferential interval of the charging cable, so that compared with irregular arrangement of the grounding sub-wires 61 in the insulating outer cover 10, the plurality of grounding sub-wires 61 are uniformly embedded in the insulating outer cover 10 at intervals, which is favorable for balanced arrangement of the quality of the whole structure of the charging cable, friction damage caused by overweight at a certain side is avoided in the daily use process, and meanwhile, the daily use of the charging cable is also facilitated.
Further, the ground wire 60 is integrally formed with the insulating cover 10. Specifically, in the production process of the charging cable, the ground wire 60 and the insulating cover 10 are integrally formed on the extrusion die. More specifically, the grounding wire 60 is split into a plurality of grounding sub-wires 61, the plurality of grounding sub-wires 61 are placed on an extrusion die, an insulating material is added in the extrusion die, and the grounding wire 60 is molded along with extrusion of the insulating outer cover 10 while the insulating outer cover 10 is extruded by the extrusion die, so that the grounding wire 60 and the insulating outer cover 10 are formed into an integrated structure, the processing and manufacturing of the grounding wire 60 and the insulating outer cover 10 are facilitated, and the processing and assembling efficiency of the charging cable is improved.
Further, the ground line 60 is a bare line. Specifically, the ground wire 60 is embedded in the insulating cover 10, that is, the circumferential contact surfaces of the ground wire 60 and the insulating cover 10 are all in insulating contact. Therefore, the grounding wire 60 can adopt a bare cable, and an insulating material layer on the outermost layer of the conventional grounding wire 60 is saved, so that the thickness of the insulating coating 10 is reduced, the diameter of the charging cable is further reduced, the overall quality of the charging cable is reduced, and the daily use of the charging cable is facilitated.
Further, the charging cable further includes an insulating layer 30, and the insulating layer 30 is disposed in the cavity 20 and divides the cavity 20 into a cooling fluid channel 21 and a receiving cavity 22, and the receiving cavity 22 is used for receiving the signal wire 40. Specifically, an insulating layer 30 is provided in the cavity 20, and the insulating layer 30 partitions the cavity 20 into two parts, one of which is the cooling liquid passage 21 for flowing the cooling liquid. During use of the charging cable, the conductor 50 generates a significant amount of heat which, if not timely expelled, can cause the cable to overheat, thereby easily causing a fire. The coolant may be used to dissipate heat from the conductor 50, avoiding significant amounts of heat from the charging cable during use. Thus, compared with the prior art, by arranging the cooling pipe to accommodate the flow of the cooling liquid, in the scheme of the invention, the insulating layer 30 is adopted to separate the cooling liquid channel 21 in the cavity 20 of the insulating outer cover 10, so that the arrangement of the cooling pipe is omitted, the space in the cavity 20 is saved, the arrangement of other parts in the cavity 20 is facilitated, the cable diameter of the charging cable is reduced, the overall quality of the charging cable is reduced, and the daily use of the charging cable is facilitated. The other part is the accommodating cavity 22, namely, an accommodating cavity 22 is formed between the insulating layer 30 and the insulating coating 10, and a signal wire 40 is arranged in the accommodating cavity 22. The signal line 40 is used for transmitting a charging signal, and may be a cable with an insulating layer or a bare cable. The signal lines 40 may be provided in plurality to satisfy the transmission of the charging signal. The signal line 40 is in contact with one side of the cooling fluid path 21, so that the cooling fluid in the cooling fluid path 21 can simultaneously radiate heat from the signal line 40.
Further, the cooling fluid path 21 includes a first cooling fluid path 211 and a second cooling fluid path 212, the first cooling fluid path 211 and the second cooling fluid path 212 are separated by the insulating layer 30 to be independent, the conductor 50 includes at least one positive conductor 51 and at least one negative conductor 52, and the positive conductor 51 and the negative conductor 52 are respectively located in the first cooling fluid path 211 and the second cooling fluid path 212. Specifically, the cooling fluid path 21 is divided into a first cooling fluid path 211 and a second cooling fluid path 212 which are independent from each other by the insulating layer 30, and the positive conductor 51 and the negative conductor 52 are respectively located in the first cooling fluid path 211 and the second cooling fluid path 212, that is, the positive conductor 51 and the negative conductor 52 are respectively provided in the two independent cooling fluid paths 21, so that the positive conductor 51 and the negative conductor 52 are located in different cooling fluid paths 21. The cooling liquid in the cooling liquid passage 21 is an insulating cooling liquid, and the positive conductor 51 and the negative conductor 52 can be provided as bare cables without wrapping insulating materials on the outermost layers of the positive conductor 51 and the negative conductor 52. Although both the positive conductor 51 and the negative conductor 52 are provided as bare cables, since the positive conductor 51 and the negative conductor 52 are located in different cooling liquid passages 21, a short circuit between the positive conductor 51 and the negative conductor 52 can be avoided, and normal use of the charging cable can be ensured. Meanwhile, the positive conductor 51 and the negative conductor 52 are arranged as bare cables, so that the conductors 50 can be further in direct contact with cooling liquid, the heat dissipation efficiency is improved, the diameter of the charging cable is reduced, and the overall quality of the charging cable is reduced. Of course, only one cooling fluid channel 21 may be provided, and in this case, both the positive conductor 51 and the negative conductor 52 are provided in the same cooling fluid channel 21, and in order to ensure normal use of the charging cable, the outermost layers of the positive conductor 51 and the negative conductor 52 need to be covered with an insulating material. In the scheme shown in the drawings of the invention, two positive conductors 51 and two negative conductors 52 are arranged, so that the positive conductors 51 and the negative conductors 52 are divided into a plurality of bundles, on one hand, the conductors 50 are divided into a plurality of bundles, which is convenient for the arrangement of the conductors 50 in the cooling liquid channel 21, thereby being beneficial to improving the space utilization rate in the cooling liquid channel 21, further reducing the diameter of the charging cable and reducing the overall quality of the charging cable. On the other hand, after the conductor 50 is split into a plurality of bundles, the contact area between the conductor 50 and the cooling liquid is increased, thereby being beneficial to heat dissipation of the conductor 50 and improving the use safety of the charging cable. Of course, the positive conductor 51 and the negative conductor 52 may be split into three-beam, four-beam, and the like.
Further, one of the first cooling liquid channel 211 and the second cooling liquid channel 212 is a liquid inlet channel of cooling liquid, and the other is a liquid outlet channel of cooling liquid. Specifically, one of the first cooling liquid channel 211 and the second cooling liquid channel 212 is a liquid inlet channel, and the other is a liquid outlet channel, that is, the cooling system adopts a one-in-one-out mode, so that a circulation loop of cooling liquid can be formed inside the charging cable, and the diameter of the charging cable is reduced. The heat generated in the working process of the conductor 50 can be timely taken away by the flowing of the cooling liquid in the circulation loop, and the conductor 50 can be timely radiated. In one embodiment, the positive conductor 51 is located in the fluid inlet and the negative conductor 52 is located in the fluid outlet. Of course, the positive conductor 51 may be located in the liquid outlet channel, and the negative conductor 52 may be located in the liquid inlet channel, which is not limited herein. In an embodiment, to improve the heat dissipation uniformity of the positive conductor 51 and the negative conductor 52, the first cooling liquid channel 211 and the second cooling liquid channel 212 may be both liquid inlets, and the first cooling liquid channel 211 and the second cooling liquid channel 212 are respectively communicated through a connecting device to form a circulation loop. The first cooling fluid channel 211 and the second cooling fluid channel 212 may each be connected to their respective head and tail ports by a connecting device to form a circulation loop independent of each other. The first cooling liquid path 211 and the second cooling liquid path 212 may each form a circulation circuit with an external device through a connection device.
Further, both the cooling liquid channel 21 and the accommodation chamber 22 are fan-shaped. Specifically, in an embodiment, the cavity 20 has a circular cross-sectional shape, and the insulating layer 30 is disposed along the radial direction of the cavity 20 so as to divide the cavity 20 into a fan-shaped cooling liquid passage 21 and a fan-shaped receiving cavity 22. Thus, compared with the arrangement of the insulating layer 30 along the non-radial direction, the cooling liquid channel 21 and the accommodating cavity 22 are both in a fan-shaped structure, which is beneficial to the arrangement of the cables such as the conductors 50 and the signal wires 40 in the cavity 20, so that the space utilization rate in the cavity 20 is higher, the diameter of the charging cable is further reduced, and the overall quality of the charging cable is further reduced. Further, an insulating layer 30 is provided in the cooling liquid passage 21 to separate the cooling liquid passage 21 into a first cooling liquid passage 211 and a second cooling liquid passage 212 that are independent of each other. In one embodiment, the insulating layer 30 is disposed along the radial direction of the charging cable such that the first cooling fluid channel 211 and the second cooling fluid channel 212 are both fan-shaped. In this way, compared with the first cooling liquid channel 211 and the second cooling liquid channel 212 with non-fan-shaped structures, the fan-shaped structures of the first cooling liquid channel 211 and the second cooling liquid channel 212 in the invention are beneficial to the arrangement of the conductors 50 in the cooling liquid channel 21, so that the conductors 50 obtain larger accommodating space, thereby further reducing the diameter of the charging cable and reducing the overall quality of the charging cable. In an embodiment, the insulating layer 30 and the insulating cover 10 are integrally formed, so that the sealing performance of the cooling liquid channel 21 is ensured, and the overflow of the cooling liquid is avoided. Of course, in order to reduce the difficulty in manufacturing the insulating coating 10 and the insulating layer 30, the insulating layer 30 and the insulating coating 10 may be in a split structure, and a sealing member may be disposed between the two to ensure the tightness of the cooling liquid channel 21. The cooling liquid channel 21 is directly formed between the circumferential insulating coating 10 and the radial insulating layer 30, so that the cable diameter of the charging cable can be further reduced, the overall quality of the charging cable is reduced, and the daily use of the charging cable is facilitated.
In one embodiment, the insulating layer 30 is disposed along the radial and circumferential directions of the charging cable such that the cooling fluid passage 21 is formed between the radial insulating layer 30 and the circumferential insulating layer 30. Specifically, the insulating layer 30 is disposed in the cavity 20 along the radial direction and the circumferential direction, so that a cooling fluid channel 21 is formed between the radial insulating layer 30 and the circumferential insulating layer 30 for the flow of the cooling fluid to timely dissipate heat of the conductor 50. When the cooling liquid fills the cooling liquid channel 21, the cooling liquid channel 21 can bear larger impact force, so that compared with the scheme that the cooling liquid channel 21 is formed only by the radial insulating layer 30 and the circumferential insulating coating 10, the scheme that the cooling liquid channel 21 is formed between the radial insulating layer 30 and the circumferential insulating layer 30 can enable the structural strength of the cooling liquid channel 21 to be larger, thereby improving the structural strength of the charging cable and being beneficial to the stability in use of the charging cable. Further, in order to improve the sealing property of the cooling liquid passage 21, the radial insulating layer 30 and the circumferential insulating layer 30 are integrally formed.
The invention also provides a charging device, which comprises a charging cable, wherein the specific structure of the charging cable refers to the embodiment, and because the charging device adopts all the technical schemes of all the embodiments, the charging device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the specific structure of the charging cable is not repeated herein.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A charging cable, comprising:
the insulating coating is axially provided with a cavity, and a cooling liquid channel is formed in the cavity;
the grounding wire is embedded in the insulating outer quilt; and
at least two conductors arranged in the cooling liquid channel;
the charging cable further comprises an insulating layer, wherein the insulating layer is arranged in the cavity and divides the cavity into the cooling liquid channel and the accommodating cavity;
the insulating layer is arranged along the radial direction of the charging cable so as to form a cooling liquid channel between the circumferential insulating coating and the radial insulating layer,
or, the insulating layer is disposed along the radial direction and the circumferential direction of the charging cable, so that a cooling fluid channel is formed between the insulating layer in the radial direction and the insulating layer in the circumferential direction.
2. The charging cable of claim 1, wherein the ground wire comprises a plurality of ground sub-wires, the plurality of ground sub-wires being embedded in the insulating jacket at intervals.
3. The charging cable according to claim 2, wherein a plurality of the grounding sub-wires are uniformly spaced apart and embedded in the insulating jacket.
4. A charging cable according to any one of claims 1 to 3, wherein the ground wire is integrally formed with the insulating coating.
5. A charging cable according to any one of claims 1 to 3, wherein the ground wire is a bare wire.
6. The charging cable according to claim 1, wherein the receiving cavity is for receiving a signal wire.
7. The charging cable of claim 6, wherein the cooling fluid channel comprises a first cooling fluid channel and a second cooling fluid channel separated by the insulating layer such that the two are independent, the conductor comprising at least one positive conductor and at least one negative conductor, the positive conductor and the negative conductor being located in the first cooling fluid channel and the second cooling fluid channel, respectively.
8. The charging cable according to claim 7, wherein one of the first cooling fluid channel and the second cooling fluid channel is a fluid intake channel of the cooling fluid, and the other is a fluid outlet channel of the cooling fluid.
9. The charging cable according to any one of claims 6 to 8, wherein the cooling fluid channel and the accommodation chamber are both fan-shaped.
10. A charging device comprising a charging cable according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210446964.3A CN114864144B (en) | 2022-04-26 | 2022-04-26 | Charging cable and charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210446964.3A CN114864144B (en) | 2022-04-26 | 2022-04-26 | Charging cable and charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114864144A CN114864144A (en) | 2022-08-05 |
| CN114864144B true CN114864144B (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210446964.3A Active CN114864144B (en) | 2022-04-26 | 2022-04-26 | Charging cable and charging device |
Country Status (1)
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| CN110858507A (en) * | 2018-08-23 | 2020-03-03 | 依赛彼集团公司 | Cable hose with embedded features |
| CN216084387U (en) * | 2021-11-11 | 2022-03-18 | 江苏中利集团股份有限公司 | Liquid cooling cable |
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| CN203787107U (en) * | 2013-12-20 | 2014-08-20 | 天津市中能特种电线电缆制造股份有限公司 | Low voltage electric power cable |
| CN104361943A (en) * | 2014-12-02 | 2015-02-18 | 安徽渡江电缆集团有限公司 | Circular multifunctional anti-interference cable |
| CN109935393A (en) * | 2017-12-15 | 2019-06-25 | 上海福尔欣线缆有限公司 | Automobile shielded cable and its manufacturing method |
| CN110858507A (en) * | 2018-08-23 | 2020-03-03 | 依赛彼集团公司 | Cable hose with embedded features |
| CN110010294A (en) * | 2019-04-02 | 2019-07-12 | 远东电缆有限公司 | Resistance to torsion lifting wind-powered electricity generation flexible cable and its production technology are pressed in a kind of wisdom energy |
| CN216084387U (en) * | 2021-11-11 | 2022-03-18 | 江苏中利集团股份有限公司 | Liquid cooling cable |
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| CN114864144A (en) | 2022-08-05 |
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