CN114864144A - Charging cable and charging device - Google Patents
Charging cable and charging device Download PDFInfo
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- CN114864144A CN114864144A CN202210446964.3A CN202210446964A CN114864144A CN 114864144 A CN114864144 A CN 114864144A CN 202210446964 A CN202210446964 A CN 202210446964A CN 114864144 A CN114864144 A CN 114864144A
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- cooling liquid
- charging cable
- conductor
- cavity
- charging
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- 239000004020 conductor Substances 0.000 claims abstract description 100
- 239000000110 cooling liquid Substances 0.000 claims abstract description 99
- 239000012809 cooling fluid Substances 0.000 claims abstract description 26
- 230000004308 accommodation Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011161 development Methods 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
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
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- 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
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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
- H01B7/17—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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a charging cable and a charging device, wherein the charging cable comprises an insulating outer cover, a grounding wire and at least two conductors, a cavity is formed in the insulating outer cover along the axial direction, and a cooling liquid channel is formed in the cavity; the grounding wire is embedded in the insulating outer cover; at least two conductors are disposed in the cooling fluid passage. 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 more and more popular. The charging requirements of users on automobiles are 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 vehicle, the larger the charging power of the vehicle is, the higher the demand for the cable diameter of the charging cable is, and the cable diameter may become 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 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, including:
the insulating outer cover 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 are arranged in the cooling liquid channel.
Optionally, the grounding wire comprises a plurality of grounding sub-wires, and the plurality of grounding sub-wires are embedded in the insulating outer cover at intervals.
Optionally, a plurality of the ground sub-wires are embedded in the insulating outer cover at uniform intervals.
Optionally, the ground wire and the insulating outer layer are integrally formed.
Optionally, the ground line is a bare wire.
Optionally, the charging cable further includes an insulating layer, the insulating layer is disposed in the cavity and divides the cavity into the cooling liquid channel and an accommodating cavity, and the accommodating cavity is used for accommodating a signal line.
Optionally, the cooling fluid passage includes a first cooling fluid passage and a second cooling fluid passage, the first cooling fluid passage and the second cooling fluid passage are separated by the insulating layer so as to be independent from each other, 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 fluid passage and the second cooling fluid passage.
Optionally, one of the first cooling liquid channel and the second cooling liquid channel is an inlet channel of the cooling liquid, and the other of the first cooling liquid channel and the second cooling liquid channel is an 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 which comprises the charging cable.
According to the technical scheme, the grounding wire is embedded into the insulating outer cover, 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 outer cover is utilized, and the space for arranging the grounding wire in the cavity is saved, so that the diameter of the charging cable is reduced, the overall quality of the charging cable is reduced, and the convenience in daily use 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 used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a charging cable according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Insulating |
40 | |
| 20 | |
50 | |
| 21 | Cooling |
51 | |
| 211 | First cooling |
52 | |
| 212 | Second cooling |
60 | |
| 22 | Containing |
61 | |
| 30 | Insulating layer |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
With the rapid development of new energy technology, new energy automobiles are more and more popular. The charging requirements of users on automobiles are 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 vehicle, the larger the charging power of the vehicle is, the higher the demand for the cable diameter of the charging cable is, and the cable diameter may become large, which is very inconvenient for daily use.
In view of the above, the present invention provides a charging cable.
Referring to fig. 1, in the embodiment of the present invention, the charging cable includes an insulating outer cover 10, a ground line 60, and at least two conductors 50. The insulating outer quilt 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 in the cooling liquid passage 21.
Specifically, the insulating outer cover 10 is the outermost layer of the charging cable, which provides outermost protection and protection for the use of the charging cable. The charging cable has a certain length, and the insulating outer cover 10 is formed with a cavity 20 along the axial direction of the charging cable, and the conductor 50 can be accommodated in the cavity 20. The insulating jacket 10 provides protection for the conductor 50 from damage to the conductor 50 and also avoids the risk of electrical leakage from the conductor 50. The insulating outer cover 10 also has a certain thickness to ensure the structural strength of the insulating outer cover 10 to achieve protection of the components in the cavity 20. The insulating outer cover 10 is made of insulating materials, and materials such as PVC, TPE, TPU, rubber and the like can be generally adopted. The insulating outer covering 10 is generally circular in cross-sectional shape so as to facilitate formation of the cavity 20 for covering cables such as conductors 50 within the cavity 20. A cooling liquid passage 21 is formed in the cavity 20, and the cooling liquid passage 21 is used for flowing cooling liquid. During use of the charging cable, the conductor 50 generates a large amount of heat, which if not discharged in a timely manner, may overheat the cable, thereby easily causing a fire. The cooling liquid can be used for heat dissipation to conductor 50, avoids charging cable high temperature in the use.
At least two conductors 50 are disposed in the cooling fluid passage 21, the conductors 50 are made of conductive material, and in one embodiment, the conductors 50 are made of conductive material copper. The conductor 50 is used to make electrical connection with an external charging device to form a charging circuit. Generally, two conductors 50 are provided, namely a positive conductor 51 and a negative conductor 52, the positive conductor 51 is used for connecting with the positive pole of the external equipment, and the negative conductor 52 is used for connecting with the negative pole of the external equipment, so that a conducting circuit is formed between the charging cable and the external equipment. One or more positive conductors 51 and 52 may be provided. That is, the positive conductor 51 and the negative conductor 52 may be one bundle of a plurality of strands or may be a plurality of split wires. When the conductor 50 is required to have a high current carrying capacity, a positive conductor 51 formed by a multi-strand wire harness and a negative conductor 52 formed by a multi-strand wire harness are selected. The conductor 50 extends in the axial direction of the insulating cover 10 and is exposed from the insulating cover 10 to make electrical connection with an external device. The conductor 50 is arranged in the cooling liquid channel 21, and the conductor 50 is timely radiated by the flowing 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 grounding wire 60 is embedded in the insulating outer quilt 10, and the grounding wire 60 is also called a safety return line, so that high voltage can be conveniently transferred to the ground in danger, and a user is prevented from getting an electric shock. 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 grounding wire 60 is embedded in the insulating outer cover 10, so that the space 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 of the charging cable is facilitated.
According to the technical scheme, the grounding wire 60 is embedded into the insulating outer cover 10, 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 outer cover 10 is utilized, the space for arranging the grounding wire 60 in the cavity 20 is saved, the diameter of the charging cable is reduced, the overall quality of the charging cable is reduced, and the convenience in daily use of the charging cable is improved.
Further, the grounding wire 60 includes a plurality of grounding wires 61, and the plurality of grounding wires 61 are embedded in the insulating outer cover 10 at intervals. Specifically, the ground wire 60 is divided into a plurality of ground sub-wires 61, and the plurality of ground sub-wires 61 are embedded in the insulating outer cover 10 at intervals in the circumferential direction of the charging cable. As such, the provision of the plurality of ground sub-wires 61 allows the thickness of the insulating cover 10 to be further reduced compared to a single electric connection wire, thereby further reducing the cable diameter of the charging cable. In the embodiment shown in the drawings of the present invention, the ground line 60 is divided into 12 ground sub-lines 61, but the ground sub-lines 61 may be provided in 10, 14, or the like, which is not limited herein. In some embodiments, the thickness of the insulation cover 10 has a minimum thickness value, and when the diameter of the ground sub-line 61 is slightly smaller than the minimum thickness value of the insulation cover 10, it is ensured that the ground sub-line 61 is embedded in the insulation cover 10 without being exposed, and at the same time, infinite separation of the ground sub-line 61 is avoided.
Furthermore, a plurality of ground wires 61 are embedded in the insulating outer cover 10 at uniform intervals. Specifically, many ground connection sub-line 61 along the even inlaying of the circumference interval of charging cable establish in insulating outer by 10, so, compare in the irregular arrangement of ground connection sub-line 61 in insulating outer by 10, many ground connection sub-line 61 interval even inlays and locates in insulating outer by 10, be favorable to the balanced arrangement of quality of the overall structure of charging cable, in daily use, avoided because of the friction damage that certain side overweight caused, the daily use of charging cable has also been made things convenient for simultaneously.
Further, the ground wire 60 is integrally formed with the insulating outer cover 10. Specifically, in the production process of the charging cable, the ground wire 60 and the insulating outer cover 10 are integrally molded on an extrusion die. More specifically, the grounding wire 60 is split into the plurality of grounding sub-wires 61, the plurality of grounding sub-wires 61 are placed on the extrusion die, the insulating material is added into the extrusion die, the insulating outer cover 10 is extruded by the extrusion die, and meanwhile, the grounding wire 60 is extruded along with the insulating outer cover 10, so that the grounding wire 60 and the insulating outer cover 10 are integrated into a forming 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 grounding wire 60 is embedded in the insulating outer cover 10, that is, the circumferential contact surfaces of the grounding wire 60 and the insulating outer cover 10 are in insulating contact. So, the earth connection 60 can adopt the bare cable, and saves the outmost insulating material layer of conventional earth connection 60 to reduced the thickness of insulating outer quilt 10, and then reduced the diameter of charging cable, reduced the overall quality of charging cable, made things convenient for charging cable's daily use.
Further, the charging cable further includes an insulating layer 30, the insulating layer 30 is disposed in the cavity 20 and divides the cavity 20 into a cooling liquid channel 21 and an accommodating cavity 22, and the accommodating cavity 22 is used for accommodating the signal line 40. Specifically, an insulating layer 30 is disposed in the cavity 20, and the insulating layer 30 divides the cavity 20 into two parts, one of which is a cooling liquid passage 21 for flowing a cooling liquid. During use of the charging cable, the conductor 50 generates a large amount of heat, which if not discharged in a timely manner, may overheat the cable, thereby easily causing a fire. The cooling liquid can be used for dissipating heat of the conductor 50, and a large amount of heat of the charging cable in the using process is avoided. Compared with the prior art in which the cooling pipe is arranged 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 from 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 components 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 a containing cavity 22, that is, the containing cavity 22 is formed between the insulating layer 30 and the insulating outer cover 10, and a signal line 40 is arranged in the containing 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 line 40 may be provided with a plurality of lines to satisfy the transmission of the charging signal. The signal line 40 is in contact with one side of the cooling liquid channel 21 so that the cooling liquid in the cooling liquid channel 21 can simultaneously dissipate heat of the signal line 40.
Further, the cooling fluid passage 21 includes a first cooling fluid passage 211 and a second cooling fluid passage 212, the first cooling fluid passage 211 and the second cooling fluid passage 212 are separated by the insulating layer 30 so as to be independent from each other, 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 passage 211 and the second cooling fluid passage 212. Specifically, the cooling liquid channel 21 is divided into a first cooling liquid channel 211 and a second cooling liquid channel 212 which are independent from each other by the insulating layer 30, the positive conductor 51 and the negative conductor 52 are respectively located in the first cooling liquid channel 211 and the second cooling liquid channel 212, that is, the positive conductor 51 and the negative conductor 52 are respectively arranged in the two independent cooling liquid channels 21, so that the positive conductor 51 and the negative conductor 52 are located in different cooling liquid channels 21. The cooling liquid in the cooling liquid channel 21 adopts insulating cooling liquid, and the positive conductor 51 and the negative conductor 52 can be arranged as bare cables without wrapping insulating materials at 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, 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 to be bare cables, so that the conductor 50 can be further directly contacted 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 liquid channel 21 may be provided, at this time, the positive conductor 51 and the negative conductor 52 are both provided in the same cooling liquid channel 21, and in order to ensure the normal use of the charging cable, the outermost layers of the positive conductor 51 and the negative conductor 52 need to be wrapped with insulating materials. In the scheme shown in the figure of the present invention, two positive conductors 51 are provided, and two negative conductors 52 are provided, so that the positive conductors 51 and the negative conductors 52 are both split into multiple bundles, and on one hand, the conductors 50 are split into multiple bundles, so that the arrangement of the conductors 50 in the cooling liquid channel 21 is facilitated, which is beneficial to improving the space utilization rate in the cooling liquid channel 21, so that the diameter of the charging cable can be further reduced, and the overall quality of the charging cable is reduced. On the other hand, after the conductor 50 is split into a plurality of beams, the contact area between the conductor 50 and the cooling liquid is increased, heat dissipation of the conductor 50 is facilitated, and the use safety of the charging cable is improved. Of course, the positive conductor 51 and the negative conductor 52 may also be split into three-beam, four-beam, etc. arrangements.
Further, one of the first cooling liquid channel 211 and the second cooling liquid channel 212 is an inlet channel of the cooling liquid, and the other is an outlet channel of the 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 cooling liquid circulation loop can be formed inside the charging cable, which is beneficial to reducing the diameter of the charging cable. The flow of the cooling liquid in the circulation loop can timely take away heat generated in the working process of the conductor 50 and timely dissipate the heat of the conductor 50. In one embodiment, positive conductor 51 is located in the inlet channel and negative conductor 52 is located in the outlet channel. 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 uniformity of heat dissipation 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 inlet channels, 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 liquid channel 211 and the second cooling liquid channel 212 may be connected by connecting means to each other at their respective end-to-end ports to form mutually independent circulation loops. The first cooling liquid channel 211 and the second cooling liquid channel 212 may form a circulation loop with an external device through a connection device.
Further, the cooling liquid channel 21 and the accommodating cavity 22 are fan-shaped. Specifically, in one embodiment, the cross-sectional shape of the cavity 20 is circular, and the insulating layer 30 is disposed along the radial direction of the cavity 20, thereby dividing the cavity 20 into a fan-shaped cooling liquid passage 21 and a fan-shaped accommodation chamber 22. So, compare in insulating layer 30 along non-radial direction's setting, cooling liquid way 21 and holding chamber 22 are sectorial structure setting, are favorable to arranging of cables such as cavity 20 inner conductor 50, signal line 40, can make space utilization in the cavity 20 higher to further reduce the diameter of charging cable, further reduce the whole quality of charging cable. Further, an insulating layer 30 is provided in the cooling liquid passage 21 to divide the cooling liquid passage 21 into a first cooling liquid passage 211 and a second cooling liquid passage 212 independent of each other. In one embodiment, the insulating layer 30 is disposed along a radial direction of the charging cable such that the first cooling liquid passage 211 and the second cooling liquid passage 212 are fan-shaped. Thus, compared with the first cooling liquid channel 211 and the second cooling liquid channel 212 which are not in fan-shaped structures, the fan-shaped structures of the first cooling liquid channel 211 and the second cooling liquid channel 212 are favorable for arranging the conductors 50 in the cooling liquid channel 21, so that the conductors 50 obtain larger accommodating space, the diameter of the charging cable can be further reduced, and the overall quality of the charging cable is reduced. In one embodiment, the insulating layer 30 and the insulating outer 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 processing and manufacturing the insulating outer cover 10 and the insulating layer 30, the insulating layer 30 and the insulating outer cover 10 may also be of a split structure, and a sealing member may be disposed between the two to ensure the sealing performance of the cooling liquid channel 21. The cooling liquid channel 21 is directly formed between the circumferential insulating outer cover 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 an embodiment, the insulating layer 30 is arranged in the radial direction and the circumferential direction of the charging cable, such that the cooling fluid channel 21 is formed between the radial insulating layer 30 and the circumferential insulating layer 30. Specifically, the insulating layer 30 is disposed radially and circumferentially within the cavity 20 such that a cooling fluid passage 21 is defined between the radial insulating layer 30 and the circumferential insulating layer 30 for the flow of cooling fluid to dissipate heat in time for the conductor 50. When the cooling liquid fills the cooling liquid channel 21, the cooling liquid channel 21 can bear a large impulsive force, so that compared with a scheme that the cooling liquid channel 21 is formed only by the radial insulating layer 30 and the circumferential insulating outer cover 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 use stability of the charging cable. Further, in order to improve the sealing performance of the cooling liquid passage 21, the radial insulating layer 30 and the circumferential insulating layer 30 are formed integrally.
The present invention further provides a charging device, which includes a charging cable, and the specific structure of the charging cable refers to the above embodiments, and since the charging device adopts all the technical solutions of all the above embodiments, the charging device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A charging cable, comprising:
the insulating outer cover 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 are arranged in the cooling liquid channel.
2. The charging cable according to claim 1, wherein the ground wire includes a plurality of ground sub-wires embedded at intervals in the insulating outer cover.
3. The charging cable according to claim 2, wherein a plurality of the ground sub-wires are embedded in the insulating outer cover at regular intervals.
4. A charging cable as claimed in any one of claims 1 to 3, wherein the earth wire is integrally formed with the insulating sheath.
5. A charging cable as claimed in any one of claims 1 to 3, wherein the earth wire is a bare wire.
6. The charging cable according to claim 1, further comprising an insulating layer disposed in the cavity and dividing the cavity into the cooling liquid channel and an accommodation chamber for accommodating a signal line.
7. The charging cable according to claim 6, wherein the cooling fluid passage includes a first cooling fluid passage and a second cooling fluid passage, the first cooling fluid passage and the second cooling fluid passage being separated by the insulating layer so as to be independent of each other, the conductors include 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 passage and the second cooling fluid passage, respectively.
8. The charging cable according to claim 7, wherein one of the first cooling liquid passage and the second cooling liquid passage is an inlet passage of the cooling liquid, and the other of the first cooling liquid passage and the second cooling liquid passage is an outlet passage of the cooling liquid.
9. The charging cable according to any one of claims 6 to 8, wherein the cooling liquid passage and the accommodation chamber are each fan-shaped.
10. A charging device characterized by comprising the 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 true CN114864144A (en) | 2022-08-05 |
| CN114864144B 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 |
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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 |
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| CN114864144B (en) | 2024-03-19 |
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