CN218214771U - Liquid cooling charging cable - Google Patents
Liquid cooling charging cable Download PDFInfo
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- CN218214771U CN218214771U CN202222326870.0U CN202222326870U CN218214771U CN 218214771 U CN218214771 U CN 218214771U CN 202222326870 U CN202222326870 U CN 202222326870U CN 218214771 U CN218214771 U CN 218214771U
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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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Abstract
The utility model discloses a liquid cooling charging cable, including the oversheath, be provided with in the oversheath: a ground line; a control line; a signal line; the charging wire, it includes charge conductor, inferior conducting layer, outer conducting layer and the charging insulation layer that from interior to exterior set gradually, charge the conductor with be provided with first cooling tube between the inferior conducting layer, first cooling tube encircles charge conductor spiral extension, inferior conducting layer with be provided with the second cooling tube between the outer conducting layer, the second cooling tube encircles inferior conducting layer spiral extension, the utility model discloses can effectively reduce the heat that the cable produced in carrying out current transmission, greatly improve the cable current-carrying capacity, improve charge efficiency and safety in utilization.
Description
Technical Field
The utility model relates to a wire and cable especially relates to a liquid cooling charging cable.
Background
Along with the development of science and technology and the progress of society, fill electric pile and more popularize, wherein, the direct current fills electric pile of formula soon and is the development direction of mainstream, nevertheless fill charging cable cooling performance in electric pile at present not enough, when the current value of flowing through in the charging cable is too big, the phenomenon of overheating appears easily in the charging cable, because of safety protection, then can restrict charging current to reduce charge efficiency, and can appear the spontaneous combustion phenomenon even to some cables that the quality is relatively poor, the security performance is lower.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquid cooling charging cable to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.
The utility model provides a solution of its technical problem is:
a liquid cooling charging cable, includes the oversheath, be provided with in the oversheath: a ground wire; a control line; a signal line; the charging wire comprises a charging conductor, a secondary conductive layer, an outer conductive layer and a charging insulating layer, wherein the charging conductor, the secondary conductive layer, the outer conductive layer and the charging insulating layer are sequentially arranged from inside to outside, a first cooling pipeline is arranged between the charging conductor and the secondary conductive layer, the first cooling pipeline surrounds the charging conductor in a spiral extending mode, a second cooling pipeline is arranged between the secondary conductive layer and the outer conductive layer, and the second cooling pipeline surrounds the secondary conductive layer in a spiral extending mode.
The technical scheme at least has the following beneficial effects: the outer sheath for providing the surrounding protection is provided with a ground wire, a signal wire, a control wire and a charging wire, wherein the charging wire mainly used for current transmission comprises a charging conductor, a secondary conductive layer and an outer conductive layer, the charging conductor, the secondary conductive layer and the outer conductive layer can transmit current, a first cooling pipeline and a second cooling pipeline which can flow through cooling liquid are respectively arranged between the charging conductor and the secondary conductive layer and between the secondary conductive layer and the outer conductive layer, the charging conductor, the secondary conductive layer and the outer conductive layer can be subjected to liquid cooling heat dissipation by utilizing the cooling liquid, when the cooling cable is used, the first cooling pipeline and the second cooling pipeline can be respectively connected to different cooling systems, after one end of the liquid cooling charging cable is cut off, the end of the first cooling pipeline and the end of the second cooling pipeline are hermetically connected, the first cooling pipeline or the second cooling pipeline is used as a water inlet pipeline, and the corresponding second cooling pipeline or the first cooling pipeline is used as a water return pipeline, so that the cooling liquid can circularly flow between layers and take away heat, and the heat generated by the cable in the current transmission can be effectively reduced, the capacity of the cable is greatly improved, and the charging efficiency and the safety in use are improved.
As a further improvement of the above technical solution, a first elastic support bar is arranged between the charging conductor and the secondary conductive layer, and the first elastic support bar and the first cooling pipe extend spirally side by side. First elastic support strip can support first cooling tube, both can carry out spacing firm to first cooling tube, still can play buffering decompression effect to first cooling tube when external force extrudees.
As a further improvement of the above technical scheme, a second elastic support bar is arranged between the secondary conductive layer and the outer conductive layer, and the second elastic support bar and the second cooling pipeline extend spirally side by side. Similarly, the second elastic support strip and the second cooling pipeline are spirally wound together around the secondary conducting layer, so that the second cooling pipeline can be supported, limited and stable, and the second cooling pipeline can be buffered and decompressed when being extruded by external force.
As a further improvement of the above technical solution, the first cooling pipeline and the second cooling pipeline both include an inner nylon tube, a woven layer wrapped outside the inner nylon tube, and an outer nylon tube sleeved outside the woven layer. First cooling tube all adopts two nylon tube structures with second cooling tube to set up the weaving layer in the centre, thereby strengthen first cooling tube and second cooling tube's bending resistance, shock resistance, reduce the weeping risk, security when improving the use.
As a further improvement of the above technical solution, the ground wire includes a ground wire conductor and a ground wire insulating layer, and the ground wire insulating layer is wrapped on the outer side of the ground wire conductor. The ground conductor can be used for grounding and is covered on the outer side by a ground insulating layer for insulating protection.
As a further improvement of the above technical solution, the control line includes a control unit and a control shielding layer, the control unit includes a control conductor and a control insulating layer covering the outside of the control conductor, the number of the control unit is plural, the control shielding layer covers all the outside of the control unit, and the outside of the control shielding layer is covered with the control protective layer. The control conductor can be used for transmitting control signals, the control insulating layer is used for being coated on the outer side of the control conductor for insulation protection, when the control conductor is used, the control shielding layer is coated on the outer sides of the control units again to play a role in signal shielding and reducing external interference, and finally the control protective layer is coated on the outer side of the control shielding layer to play a further role in protection.
As a further improvement of the above technical solution, the signal line includes a signal unit and a signal shielding layer, the signal unit includes a signal conductor and a signal insulating layer covering the outside of the signal conductor, the number of the signal units is plural, the signal shielding layer covers all the outside of the signal unit, and the outside of the signal shielding layer is covered with a signal protective layer. The signal conductor can be used for transmitting network signals, and is coated and protected by the signal insulating layer, then the signal shielding layer coats the plurality of signal units to realize signal shielding, and finally the signal protective layer is coated on the outer surface of the signal shielding layer to improve the protective effect.
As a further improvement of the technical scheme, the gaps between the ground wire, the control wire, the signal wire and the charging wire are filled with the flame-retardant ropes, the inner side of the outer sheath is provided with the flame-retardant layer, and the ground wire, the control wire, the signal wire, the charging wire and all the flame-retardant ropes are located in the flame-retardant layer. The fire-retardant layer compresses tightly ground wire, control line, signal line and charging wire parcel to fill fire-retardant rope between line and the line, both can improve overall structure compactness, still can strengthen whole fire behaviour.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a schematic view of the overall internal structure of the present invention;
fig. 2 is a schematic diagram of the internal structure of the first cooling pipe of the present invention.
In the drawings: 100-outer sheath, 210-charging conductor, 220-secondary conductive layer, 230-outer conductive layer, 240-charging insulating layer, 250-first cooling pipe, 251-inner nylon pipe, 252-woven layer, 253-outer nylon pipe, 260-second cooling pipe, 270-first elastic support bar, 280-second elastic support bar, 310-ground conductor, 320-ground insulating layer, 411-control conductor, 412-control insulating layer, 420-control shielding layer, 430-control shielding layer, 511-signal conductor, 512-signal insulating layer, 513-signal shielding layer, 514-signal shielding layer, 610-flame retardant rope, 620-flame retardant layer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, a liquid cooling charging cable includes an outer sheath 100, a ground wire, a control wire, a signal wire and two charging wires are arranged in the outer sheath 100, the number of the charging wires is two, the charging wires include a charging conductor 210, a secondary conductive layer 220, an outer conductive layer 230 and a charging insulation layer 240 which are sequentially arranged from inside to outside, a first cooling pipeline 250 is arranged between the charging conductor 210 and the secondary conductive layer 220, the first cooling pipeline 250 surrounds the charging conductor 210 and extends spirally, a second cooling pipeline 260 is arranged between the secondary conductive layer 220 and the outer conductive layer 230, and the second cooling pipeline 260 surrounds the secondary conductive layer 220 and extends spirally.
As can be seen from the above, the outer sheath 100 providing the enclosure protection is provided with the ground wire, the signal wire, the control wire and the charging wire, wherein the charging wire mainly used for current transmission includes the charging conductor 210, the secondary conductive layer 220 and the outer conductive layer 230, and the first cooling pipe 250 and the second cooling pipe 260 capable of flowing through the cooling liquid are respectively arranged between the charging conductor 210 and the secondary conductive layer 220 and between the secondary conductive layer 220 and the outer conductive layer 230, so that the charging conductor 210, the secondary conductive layer 220 and the outer conductive layer 230 can be cooled and dissipated by the cooling liquid, when in use, the first cooling pipe 250 and the second cooling pipe 260 can be respectively connected to different cooling systems, or after one end of the liquid-cooled charging cable is cut off, the end of the first cooling pipe 250 and the end of the second cooling pipe 260 are hermetically connected, the first cooling pipe 250 or the second cooling pipe 260 is used as a water inlet pipe, and the corresponding second cooling pipe 260 or the first cooling pipe 250 is used as a water return pipe, so that the cooling liquid can circulate between layers to take away heat, thereby effectively reducing the heat generated in the cable and improving the current-carrying efficiency and the safety of the charging cable.
The first cooling duct 250 extends spirally around the charging conductor 210, if each spiral coil formed by the first cooling duct 250 is adjacent to each other, the path that the first cooling duct 250 needs to extend is long, and if there is a gap between two adjacent spiral coils, the whole cable easily deforms and displaces the first cooling duct 250 in the bending process, so in this embodiment, a first elastic support strip 270 is disposed between the charging conductor 210 and the secondary conductive layer 220, and the first elastic support strip 270 extends spirally side by side with the first cooling duct 250. First elastic support strip 270 can support first cooling conduit 250, both can carry out spacing firm to first cooling conduit 250, still can play the buffering decompression effect to first cooling conduit 250 when external force extrudees.
Similarly, a second elastic supporting strip 280 is disposed between the secondary conductive layer 220 and the outer conductive layer 230, and the second elastic supporting strip 280 and the second cooling pipe 260 spirally extend side by side. The second elastic supporting strip 280 and the second cooling pipe 260 are spirally wound around the sub-conductive layer 220, so that the second cooling pipe 260 can be supported, limited and stable, and the second cooling pipe 260 can be buffered and decompressed when being extruded by external force. In practical applications, the first elastic supporting strip 270 and the second elastic supporting strip 280 may be formed by extruding silica gel to form a strip-shaped elastic supporting strip.
In order to better avoid the occurrence of the phenomenon of the first cooling pipe 250 and the second cooling pipe 260 being cut off due to bending in the using process, as shown in fig. 2, in this embodiment, each of the first cooling pipe 250 and the second cooling pipe 260 includes an inner nylon tube 251, a woven layer 252 wrapping the outer side of the inner nylon tube 251, and an outer nylon tube 253 covering the outer side of the woven layer 252, and the woven layer 252 may be a woven mesh of carbon fiber yarns. First cooling tube 250 all adopts two nylon tube structures with second cooling tube 260 to set up weaving layer 252 in the middle, thereby strengthen first cooling tube 250 and second cooling tube 260's bending resistance, shock resistance, reduce the weeping risk, the security when improving the use.
For the ground wire, the ground wire comprises a ground wire conductor 310 and a ground wire insulating layer 320, the ground wire conductor 310 is made of an oxygen-free copper rod after being subjected to wire drawing by a wire drawing machine and wire bundling by a wire bundling machine and wire stranding by a wire stranding machine, the ground wire insulating layer 320 is insulated by adopting an elastic body, and the surface of the ground wire conductor 310 is coated by an extruder. The ground conductor 310 may be used for grounding and covered with a ground insulating layer 320 for insulation protection.
For a control line, the control line comprises a control unit and a control shielding layer 420, the control unit comprises a control conductor 411 and a control insulating layer 412, the control conductor 411 is made of an oxygen-free copper rod after being drawn by a drawing machine and bundled by a bundling machine, the control insulating layer 412 is insulated by an elastomer and extruded by an extruder to be coated on the outer surface of the control conductor 411 to form the control unit, the number of the control units is three, after the three control units are cabled, a copper wire braiding machine coats the outer sides of the three control units after being finished to form the control shielding layer 420, and the control protecting layer 430 is made of an elastomer and is extruded by the extruder to be coated on the control shielding layer 420. The control conductor 411 may be used to transmit control signals, and is covered by the control insulating layer 412 for insulation protection, when in use, the control shielding layer 420 is covered by the control shielding layers 420 to play a role of signal shielding and reducing external interference, and finally the control protection layer 430 is covered by the control shielding layer 420 to play a further role of protection.
For the signal wire, the signal wire includes signal unit and signal shielding layer 513, the signal unit includes signal conductor 511 and signal insulating layer 512, and is same, and signal conductor 511 is made after anaerobic copper pole process wire drawing of wire drawing machine and bundle silk machine beam silk, and signal insulating layer 512 adopts the elastomer insulation, extrudes by the extruder, wraps and forms signal unit on signal conductor 511, four after the signal unit cabling, carries out the copper wire by the copper wire braider and weaves, forms signal shielding layer 513 to wrap four after the cabling the signal unit outside, signal inoxidizing coating 514 adopts elastic material, extrudes by the extruder, and the cladding is in signal shielding layer 513 outward appearance. The signal conductor 511 may be used for transmitting network signals, and is covered and protected by the signal insulating layer 512, then the signal shielding layer 513 covers a plurality of signal units to implement signal shielding, and finally the signal shielding layer 514 is covered on the outer surface of the signal shielding layer 513 to improve the protection effect.
For whole liquid cooling charging cable, the clearance packing between ground wire, control line, signal line and the charging wire has fire-retardant rope 610, the inboard of oversheath 100 is provided with fire-retardant layer 620, ground wire, control line, signal line, charging wire and all fire-retardant rope 610 all is located in fire-retardant layer 620. The fire-retardant layer 620 compresses tightly ground wire, control line, signal line and charging wire parcel to fill fire-retardant rope 610 between line and the line, both can improve overall structure compactness, still can strengthen whole fire behaviour.
The outer sheath 100 is made of an elastic material, and is extruded by an extruder to be coated on the outer side of the flame retardant layer 620.
The production process of the liquid cooling charging cable comprises the following steps of respectively forming a ground wire, a control wire, a signal wire and a charging wire, cabling the ground wire, the control wire, the signal wire and the charging wire, and forming a flame-retardant layer 620 by wrapping a flame-retardant wrapping belt on the outer side, wherein the forming of the charging wire comprises the following steps: s1: an oxygen-free copper rod is subjected to wire drawing by a wire drawing machine, wire bundling by a wire bundling machine and wire stranding machine multiple stranding, and then is manufactured into a charging conductor 210; s2: spirally wrapping the charging conductor 210 by using a first cooling pipeline 250 and a first elastic rubber strip side by side, and forming a first cooling layer outside the charging conductor 210; s3: winding and twisting a secondary conductor outside the first cooling layer to form a secondary conductive layer 220; s4: spirally wrapping the secondary conductive layer 220 by using a second cooling pipeline 260 and a second elastic rubber strip in parallel, and forming a second cooling layer outside the secondary conductive layer 220; s4: forming an outer conductive layer 230 by winding and twisting an outer conductor outside the second cooling layer; s5: the charging wire is obtained by extruding the charging insulating layer 240 from the outside of the outer conductive layer 230 by an extruder.
So divide into the three-layer with transmission current's conductor from interior to exterior, and set up the liquid cooling pipeline between arbitrary adjacent two-layer, liquid cooling pipeline spiral winding, prolonged with charging conductor 210, inferior conducting layer 220, the heat transfer stroke of outer conducting layer 230, and first elasticity adhesive tape and second elasticity adhesive tape spiral winding side by side, the spiral winding structure of cooling pipeline has further been stabilized, strengthen the bending resistance performance of cooling pipeline, in order to realize stable coolant liquid and carry, guarantee whole cooling effect, so the cable current-carrying capacity that obtains is bigger, effectively reduce the heat that produces among the current transmission, improve charge efficiency and safety in utilization.
In step S3 and step S4, each of the first cooling pipe 250 and the second cooling pipe 260 includes an inner nylon pipe 251, a carbon fiber woven mesh is coated outside the inner nylon pipe 251 to form a woven layer 252, and an outer nylon pipe 253 is sleeved outside the woven layer 252.
Double-deck nylon pipeline can improve the leak protection effect to the coolant liquid to weaving layer 252 further strengthens interior structural strength, improves cooling heat dissipation's security.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above-described embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are to be included within the scope of the present invention defined by the claims.
Claims (8)
1. A liquid cooling charging cable which characterized in that: comprises an outer sheath (100), wherein the outer sheath (100) is internally provided with:
a ground line;
a control line;
a signal line;
the charging wire comprises a charging conductor (210), a secondary conductive layer (220), an outer conductive layer (230) and a charging insulating layer (240), wherein the charging conductor (210), the secondary conductive layer (220), the outer conductive layer (230) and the charging insulating layer (240) are sequentially arranged from inside to outside, a first cooling pipeline (250) is arranged between the charging conductor (210) and the secondary conductive layer (220), the first cooling pipeline (250) extends spirally around the charging conductor (210), a second cooling pipeline (260) is arranged between the secondary conductive layer (220) and the outer conductive layer (230), and the second cooling pipeline (260) extends spirally around the secondary conductive layer (220).
2. A liquid cooled charging cable according to claim 1, wherein: a first elastic supporting strip (270) is arranged between the charging conductor (210) and the secondary conductive layer (220), and the first elastic supporting strip (270) and the first cooling pipeline (250) extend spirally side by side.
3. A liquid-cooled charging cable according to claim 1, characterized in that: a second elastic support strip (280) is arranged between the secondary conductive layer (220) and the outer conductive layer (230), and the second elastic support strip (280) and the second cooling pipeline (260) spirally extend side by side.
4. A liquid cooled charging cable according to claim 1, wherein: the first cooling pipeline (250) and the second cooling pipeline (260) respectively comprise an inner nylon pipe (251), a woven layer (252) coated on the outer side of the inner nylon pipe (251), and an outer nylon pipe (253) sleeved on the outer side of the woven layer (252).
5. A liquid cooled charging cable according to claim 1, wherein: the ground wire comprises a ground wire conductor (310) and a ground wire insulating layer (320), wherein the ground wire insulating layer (320) is coated on the outer side of the ground wire conductor (310).
6. A liquid cooled charging cable according to claim 1, wherein: the control line includes control unit and control shielding layer (420), the control unit include control conductor (411), the cladding in control insulating layer (412) in the control conductor (411) outside, the quantity of control unit has a plurality ofly, control shielding layer (420) cladding in all the control unit outside, the outside cladding of control shielding layer (420) has control inoxidizing coating (430).
7. A liquid-cooled charging cable according to claim 1, characterized in that: the signal line includes signal unit and signal shielding layer (513), the signal unit include signal conductor (511), the cladding in signal insulating layer (512) in the signal conductor (511) outside, the quantity of signal unit has a plurality ofly, signal shielding layer (513) cladding in all the signal unit outside, the outside cladding of signal shielding layer (513) has signal inoxidizing coating (514).
8. A liquid cooled charging cable according to claim 1, wherein: the cable is characterized in that flame-retardant ropes (610) are filled in gaps among the ground wires, the control wires, the signal wires and the charging wires, a flame-retardant layer (620) is arranged on the inner side of the outer sheath (100), and the ground wires, the control wires, the signal wires, the charging wires and all the flame-retardant ropes (610) are located in the flame-retardant layer (620).
Priority Applications (1)
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CN202222326870.0U CN218214771U (en) | 2022-08-31 | 2022-08-31 | Liquid cooling charging cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202222326870.0U CN218214771U (en) | 2022-08-31 | 2022-08-31 | Liquid cooling charging cable |
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CN218214771U true CN218214771U (en) | 2023-01-03 |
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CN202222326870.0U Active CN218214771U (en) | 2022-08-31 | 2022-08-31 | Liquid cooling charging cable |
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