CN113380451A - Charging cable - Google Patents
Charging cable Download PDFInfo
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- CN113380451A CN113380451A CN202110796458.2A CN202110796458A CN113380451A CN 113380451 A CN113380451 A CN 113380451A CN 202110796458 A CN202110796458 A CN 202110796458A CN 113380451 A CN113380451 A CN 113380451A
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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
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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
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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
- H01B7/42—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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Abstract
The invention relates to the technical field of charging cables, in particular to a charging cable which is applied to an electric or hybrid automobile and can bear high-power charging. The charging cable provided by the embodiment of the application comprises an outer sheath, a liquid cooling pipe, a plurality of positive cables and a plurality of negative cables; the liquid cooling pipe is used for flowing cooling liquid; at least one part of the plurality of positive cables is tightly attached to the liquid cooling pipe, and each positive cable comprises a positive lead and an insulating layer wrapping the positive lead; at least one part of the plurality of cathode cables is tightly attached to the liquid cooling pipe, and each cathode cable comprises a cathode lead and an insulating layer wrapping the cathode lead; the outer sheath is sleeved on the outer sides of the liquid cooling pipe, the anode cable and the cathode cable. According to the high-current charging cable, the power cable is equally divided into a plurality of parts, so that the contact area between the power cable and the liquid cooling pipe is effectively increased, the heat dissipation area and the heat conduction area are increased, and the heat dissipation efficiency is effectively improved.
Description
Technical Field
The invention relates to the technical field of charging cables, in particular to a charging cable which is applied to an electric or hybrid automobile and can bear high-power charging.
Background
Quick efficient charges is one of the main trends of present electronic or hybrid vehicle development, because quick efficient charges and needs the charging cable to bear great electric current, consequently to charging cable's requirement higher, the heat that produces when the cable heart yearn is connected the heavy current is higher, consequently, powerful charging cable all needs carry out the heat dissipation design.
In the related art, a charging cable for high-power charging includes a positive cable, a negative cable and an outer sheath wrapping the two cables, wherein the positive cable is composed of a positive lead made of copper or aluminum and an insulating sheath wrapping the positive lead, the negative cable is composed of a positive lead made of copper or aluminum and an insulating sheath wrapping the positive lead, and the outer sheath wrapping the two cables is made of PVC, TPE, TPU, rubber materials and the like. In order to improve the heat dissipation efficiency of the positive electrode lead and the negative electrode lead and avoid the ignition caused by the overheating of the outer sheath, taking the current-carrying capacity as 250A as an example, the diameter of a positive-negative traditional high-power charging cable is generally more than 35 mm. However, the charging cable designed in this way still cannot achieve good heat dissipation, so that the heat dissipation efficiency of the cable is improved by arranging a water pipe in the outer sheath in the recent industry, and the outer sheath is prevented from catching fire.
However, in practical use, the heat dissipation effect of the water-cooled charging cable is still not good, and further optimization is necessary to improve the heat dissipation efficiency.
Disclosure of Invention
The present invention provides a charging cable that effectively solves the above and other potential technical problems.
The invention provides a charging cable, which comprises an outer sheath, a liquid cooling pipe, a plurality of positive cables and a plurality of negative cables; the liquid cooling pipe is used for flowing cooling liquid; at least one part of the plurality of positive cables is tightly attached to the liquid cooling pipe, and each positive cable comprises a positive lead and an insulating layer wrapping the positive lead; at least one part of the plurality of cathode cables is tightly attached to the liquid cooling pipe, and each cathode cable comprises a cathode lead and an insulating layer wrapping the cathode lead; the outer sheath is sleeved on the outer sides of the liquid cooling pipe, the anode cable and the cathode cable.
In an alternative embodiment according to the first aspect, the liquid cooling tube includes two liquid cooling branches, at least a portion of the plurality of positive cables is attached to one of the liquid cooling branches, and at least a portion of the plurality of negative cables is attached to the other of the liquid cooling branches; and/or the liquid cooling pipe is made of flexible materials; and/or the diameter of the charging cable is less than or equal to 27 mm. It should be noted that the liquid cooling pipe is set to include two liquid cooling branch pipes to cool down the plurality of positive cables and the plurality of negative cables respectively, and the liquid cooling pipe is set to be two liquid cooling branch pipes to increase the external surface area of the liquid cooling pipe, so that the contact areas of the plurality of positive cables and the plurality of negative cables with the liquid cooling pipe are increased, and the cooling effect is further enhanced. Will the liquid cooling pipe is made by flexible material, when being convenient for many positive cables and many negative cables and liquid cooling pipe contact, because the nature of flexible material makes the liquid cooling pipe take place local deformation when contacting, and then makes the area of contact increase of positive cable and negative cable and liquid cooling pipe, and then increases the area of heat transfer, further realizes rapid cooling's effect better. Meanwhile, the diameter of the charging cable is smaller than or equal to 27mm, and compared with the traditional technical scheme, the diameter of the charging cable is smaller, so that the weight of the charging cable can be effectively reduced.
In an alternative embodiment according to the first aspect, one of the two liquid-cooling branch pipes is a liquid inlet pipe, and the other of the two liquid-cooling branch pipes is a liquid outlet pipe; and/or the liquid cooling pipe is made of a silica gel material. It should be noted that, two liquid cooling pipe branch pipes are arranged in a one-in one-out mode, so that liquid cooling media in the liquid cooling pipes can be fully utilized, liquid inlet and liquid outlet are arranged at the same end, and storage is facilitated. The liquid cooling pipe is made of silica gel or polyurethane material, wherein the silica gel material has good thermal stability and weather resistance, and meanwhile has excellent cooling liquid resistance. Therefore, the liquid cooling pipe is made of the silica gel material, heat transfer can be stably carried out, the service life is long, and cold liquid permeation can be avoided.
In an optional embodiment according to the first aspect, the liquid cooling pipe further comprises a heat insulation layer, and the heat insulation layer is wrapped outside the plurality of positive cables, the plurality of negative cables and the liquid cooling pipe and is arranged inside the outer sheath. It should be noted that the insulating layer is used for isolating the outside and inside temperature of the high-current charging cable protective layer, prevents the outer sheath of the protective outer sheath from being overheated, further causes accidents such as fire disasters, improves the high-current charging performance of the power cable, simultaneously guarantees the safety performance of the cable in use, and improves the user experience.
In an optional embodiment according to the first aspect, further comprising a woven layer, the woven layer being disposed on an inner side wall of the insulation layer. It needs to explain, the weaving layer sets up in the inside wall of insulating layer, makes it fully contact with the liquid cooling pipe, plays good heat conduction effect for the inside heat dispersion of charging cable is even.
In an optional embodiment according to the first aspect, the woven fabric further comprises an aluminum foil layer, and the aluminum foil layer is disposed on an inner side wall of the woven layer. It should be noted that the aluminum foil has good heat conductivity and plasticity, and can facilitate heat conduction, so that the heat inside the outer sheath is uniformly distributed, and the phenomenon of local high temperature on the outer surface of the outer sheath is avoided. And meanwhile, the coating is convenient for coating the outer surfaces of the liquid cooling pipe, the anode cable and the cathode cable.
In an alternative embodiment according to the first aspect, the liquid inlet pipe and the liquid outlet pipe are arranged in close contact with the aluminum foil layer; the positive cables comprise first to fifth positive cables, wherein the first to fourth positive cables are tightly attached to the liquid inlet pipe or the liquid outlet pipe, and the fifth positive cable is tightly attached to the aluminum foil layer and the fourth positive cable; the negative electrode cables comprise first to fifth negative electrode cables, wherein the first to fourth negative electrode cables are tightly attached to the liquid outlet pipe or the liquid inlet pipe, and the fifth negative electrode cable is tightly attached to the aluminum foil layer and the first negative electrode cable. It should be noted that the first to fourth positive cables are tightly attached to the liquid inlet pipe or the liquid outlet pipe, so that the contact area between the first to fourth positive cables and the liquid cooling pipe is increased. Meanwhile, the first to fourth negative cables are tightly attached to the liquid outlet pipe or the liquid inlet pipe. The first to the fourth positive cables are tightly attached to the liquid inlet pipe or the liquid outlet pipe, so that the contact area between the first to the fourth positive cables and the liquid cooling pipe is increased conveniently.
In an optional embodiment according to the first aspect, the optical cable further comprises two bundles of signal cables, each bundle of signal cables comprises a plurality of signal wires and a shielding layer wrapping the plurality of signal wires, and each bundle of signal wires comprises a signal conductor and an insulating layer wrapping the signal conductor; the first bundle of signal cables is tightly attached to the first positive cable, the fifth negative cable and the aluminum foil layer; and the second bundle of signal cables are tightly attached to the fifth positive cable, the fourth negative cable and the aluminum foil layer. It should be noted that the signal cable is provided for better signal transmission, and the shielding layer is provided for avoiding signal interference of the positive cable and the negative cable to the signal cable.
In an alternative embodiment according to the first aspect, further comprising a ground cable and two low voltage power supply cables; the grounding cable comprises a grounding conductor and an insulating layer wrapping the grounding conductor; the low-voltage cable comprises a low-voltage wire and an insulating layer wrapping the low-voltage wire; the grounding cable is positioned among the second positive cable, the third positive cable, the second negative cable and the third negative cable; the first low-voltage power cable is positioned among the first beam of signal cable, the second positive cable, the second negative cable and the fifth negative cable; the second low-voltage power cable is positioned among the third positive cable, the fifth positive cable, the second signal cable and the third negative cable. It should be noted that the ground wire is a wire directly connected to the earth, and is also called a safety return line, so that high voltage is conveniently transferred to the earth in danger. It should also be noted that low voltage power cables are used to transmit power or information. Positioning a first low-voltage power cable among the first beam of signal cable, the second positive cable, the second negative cable and the fifth negative cable; the second low-voltage power cable is arranged among the third positive cable, the fifth positive cable, the second signal cable and the third negative cable, and other arrangement modes can be adopted according to the requirements of users.
In an alternative embodiment according to the first aspect, the outer sheath is made of one or more of PVC, TPE, TPU, rubber material; and/or the heat insulation layer is made of a non-woven fabric material; and/or the woven layer is made of tin-plated copper and/or a copper material. It should be noted that the outer sheath is made of one or more of PVC, TPE, TPU and rubber materials, that is, made of insulating materials.
The application provides a charging cable compares with prior art, possesses following beneficial effect at least:
the charging cable provided by the embodiment of the application comprises an outer sheath, a liquid cooling pipe, a plurality of positive cables and a plurality of negative cables; the liquid cooling pipe is used for flowing cooling liquid; at least one part of the plurality of positive cables is tightly attached to the liquid cooling pipe, and each positive cable comprises a positive lead and an insulating layer wrapping the positive lead; at least one part of the plurality of cathode cables is tightly attached to the liquid cooling pipe, and each cathode cable comprises a cathode lead and an insulating layer wrapping the cathode lead; the outer sheath is sleeved on the outer sides of the liquid cooling pipe, the anode cable and the cathode cable. According to the high-current charging cable, the power cable is equally divided into a plurality of parts, so that the contact area between the power cable and the liquid cooling pipe is effectively increased, the heat dissipation area and the heat conduction area are increased, and the heat dissipation efficiency is effectively improved.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and other objects, features and advantages of the embodiments of the present invention will become more readily understood by the following detailed description with reference to the accompanying drawings. Embodiments of the invention will now be described, by way of example and not limitation, in the accompanying drawings, in which:
fig. 1 is a schematic overall structure diagram of a charging cable provided in an embodiment of the present application in a first view;
fig. 2 is a schematic overall structure diagram of a charging cable provided in an embodiment of the present application in a second view.
Reference numerals:
11-an outer sheath;
121-a liquid inlet pipe; 123-liquid outlet pipe;
13-positive cable; 131-positive electrode lead;
132-a first positive cable; 133-a second positive cable;
134-a third positive cable; 135-a fourth positive cable;
136-fifth positive cable; 14-a negative cable;
141-negative electrode lead; 142-a first negative cable;
143-a second negative cable; 144-a third negative cable;
145-a fourth negative cable; 146-a fifth negative cable;
15-a thermal insulation layer; 151-a braid layer;
153-aluminium foil layer; 16-a signal cable;
161-signal conductors; 163-a shielding layer;
164-a first bundle of signal cables; 165-a second bundle of signal cables;
17-a ground cable; 171-ground conductor;
181-low voltage wire; 182-a first low voltage power cable; 183-second low voltage power cable.
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 or similar 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 illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
It should be understood that the following examples do not limit the order of execution of the steps of the claimed method. The various steps of the method of the invention can be performed in any possible order and in a round-robin fashion without contradicting each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the prior art, in order to improve the heat dissipation efficiency of the positive electrode lead and the negative electrode lead and avoid the ignition caused by the overheating of the outer sheath, taking the current-carrying capacity as 250A as an example, the diameter of a conventional positive-negative high-power charging cable is generally more than 35 mm. However, the charging cable designed in this way still cannot achieve good heat dissipation, so that the heat dissipation efficiency of the cable is improved by arranging a water pipe in the outer sheath in the recent industry, and the outer sheath is prevented from catching fire. However, in practical use, the heat dissipation effect of the water-cooled charging cable is still not good, and further optimization is necessary to improve the heat dissipation efficiency.
In view of this, the charging cable provided in the embodiment of the present application includes an outer sheath, a liquid cooling pipe, a plurality of positive cables, and a plurality of negative cables; the liquid cooling pipe is used for flowing cooling liquid; at least one part of the plurality of positive cables is tightly attached to the liquid cooling pipe, and each positive cable comprises a positive lead and an insulating layer wrapping the positive lead; at least one part of the plurality of cathode cables is tightly attached to the liquid cooling pipe, and each cathode cable comprises a cathode lead and an insulating layer wrapping the cathode lead; the outer sheath is sleeved on the outer sides of the liquid cooling pipe, the anode cable and the cathode cable. According to the high-current charging cable, the power cable is equally divided into a plurality of parts, so that the contact area between the power cable and the liquid cooling pipe is effectively increased, the heat dissipation area and the heat conduction area are increased, and the heat dissipation efficiency is effectively improved.
Fig. 1 is a schematic overall structure diagram of a charging cable provided in an embodiment of the present application in a first viewing angle, and fig. 2 is a schematic overall structure diagram of the charging cable provided in the embodiment of the present application in a second viewing angle. Referring to fig. 1 to 2, a charging cable provided in the present embodiment includes an outer sheath 11, a liquid cooling pipe, a plurality of positive cables 13, and a plurality of negative cables 14; the liquid cooling pipe is used for flowing cooling liquid; at least one part of the plurality of positive cables 13 is tightly attached to the liquid cooling pipe, and each positive cable 13 comprises a positive lead 131 and an insulating layer wrapping the positive lead 131; at least one part of the plurality of negative cables 14 is tightly attached to the liquid cooling pipe, and each negative cable 14 comprises a negative lead 141 and an insulating layer wrapping the negative lead 141; the outer sheath 11 is sleeved on the outer sides of the liquid cooling pipe, the positive cable 13 and the negative cable 14.
The charging cable provided by the embodiment of the application comprises an outer sheath 11, a liquid cooling pipe, a plurality of positive cables 13 and a plurality of negative cables 14; the liquid cooling pipe is used for flowing cooling liquid; at least one part of the plurality of positive cables 13 is tightly attached to the liquid cooling pipe, and each positive cable 13 comprises a positive lead 131 and an insulating layer wrapping the positive lead 131; at least one part of the plurality of negative cables 14 is also tightly attached to the liquid cooling pipe, and each negative cable 14 comprises a negative lead 141 and an insulating layer wrapping the negative lead 141; the outer sheath 11 is sleeved on the outer sides of the liquid cooling pipe, the positive cable 13 and the negative cable 14. According to the high-current charging cable, the power cable is equally divided into a plurality of parts, so that the contact area between the power cable and the liquid cooling pipe is effectively increased, the heat dissipation area and the heat conduction area are increased, and the heat dissipation efficiency is effectively improved.
Specifically, the outer sheath 11 is made of one or more of PVC, TPE, TPU and rubber materials, and the outer sheath 11 is configured to be a cylindrical structure, for example, it is understood that the specific structure of the outer sheath 11 is not limited herein, and in other specific embodiments, the outer sheath 11 may be configured to be other shapes according to the needs of the user.
The liquid cooling pipe comprises two liquid cooling branch pipes, at least one part of the plurality of positive cables 13 is tightly attached to one liquid cooling branch pipe, and at least one part of the plurality of negative cables 14 is tightly attached to the other liquid cooling branch pipe; it should be noted that, the liquid cooling pipe is set to include two liquid cooling branch pipes to cool down the plurality of positive cables 13 and the plurality of negative cables 14 respectively, and the liquid cooling pipe is set to be two liquid cooling branch pipes to increase the external surface area of the liquid cooling pipe, so as to increase the contact areas of the plurality of positive cables 13 and the plurality of negative cables 14 with the liquid cooling pipe, and further enhance the cooling effect.
Illustratively, one of the two liquid cooling branch pipes is a liquid inlet pipe 121, and the other of the two liquid cooling branch pipes is a liquid outlet pipe 123, that is, the two liquid cooling branch pipes are arranged in a one-in one-out mode, so that liquid cooling media in the liquid cooling pipes can be fully utilized, and meanwhile, the liquid inlet and the liquid outlet are arranged at the same end, and the storage is convenient to realize.
Exemplarily, the liquid cooling pipe is made of a flexible material, and the liquid cooling pipe is made of the flexible material, so that when the plurality of positive cables 13 and the plurality of negative cables 14 are in contact with the liquid cooling pipe, the liquid cooling pipe is locally deformed due to the property of the flexible material, so that the contact areas of the positive cables 13 and the negative cables 14 and the liquid cooling pipe are increased, the heat transfer area is increased, and the effect of rapid cooling is further and better realized.
Illustratively, the liquid-cooled tube is made of a silicone or polyurethane material. The liquid cooling pipe is made of a silica gel or polyurethane material, wherein the silica gel material has good thermal stability and weather resistance, and also has excellent cooling liquid resistance. Therefore, the liquid cooling pipe is made of the silica gel material, heat transfer can be stably carried out, the service life is long, and cold liquid permeation can be avoided. It should be noted that, the specific material of the liquid cooling pipe is not limited herein, and in other installation examples, the liquid cooling pipe may be made of other materials with high heat conduction performance according to the specific needs of users.
In an optional exemplary embodiment, a heat insulation layer 15 is further included, and the heat insulation layer 15 is wrapped on the outer sides of the plurality of positive cables 13, the plurality of negative cables 14 and the liquid cooling pipe and is arranged on the inner side of the outer sheath 11. The insulating layer 15 is used for keeping apart the outside and inside temperature of heavy current charging cable protective layer, prevents that the 11 crust of protection oversheath from being overheated, and then causes accidents such as conflagration, improves power cable's heavy current charging performance, guarantees the security performance of cable use simultaneously, improves the user and uses experience.
The insulating layer 15 is illustratively made of a nonwoven material, which has superior abrasion resistance and barrier properties, good air permeability and water resistance, high levels of stretch and tear strength, good uniformity, excellent processability, and excellent thermal stability. The heat insulation layer 15 has good heat insulation performance, and has the advantages of strong stability, convenience in heating, wear resistance and the like.
In an alternative exemplary embodiment, the charging cable further includes a braid 151, and the braid 151 is disposed on an inner sidewall of the insulation layer 15. It should be noted that the braid 151 is disposed on the inner sidewall of the thermal insulation layer 15, so that the braid can be fully contacted with the liquid cooling pipe, thereby achieving a good heat conduction effect, and enabling the internal heat of the charging cable to be uniformly dispersed.
Illustratively, the braid 151 is made of tin-plated copper and/or copper material, i.e., the braid may be made of tin-plated copper, or tin-plated copper and copper alloy material. It should be noted that tin-plated copper has good heat conductivity, good welding performance, and good rust resistance. The braided layer has good heat-conducting property, is convenient to weave and weld, can effectively avoid rusting, and enhances the structural stability. Copper has good ductility and good thermal conductivity. Therefore, the user can select the material of the braid 151 to be tin-plated copper, copper or tin-plated copper and copper alloy according to the requirement.
In an alternative exemplary embodiment, the charging cable further includes an aluminum foil layer 153, and the aluminum foil layer 153 is disposed on an inner sidewall of the braid 151. It should be noted that the aluminum foil has good heat conductivity and plasticity, so that heat conduction can be conveniently realized, the heat inside the outer sheath 11 is uniformly distributed, and the phenomenon of local high temperature on the outer surface of the outer sheath is avoided. And is convenient to coat the outer surfaces of the liquid cooling pipe, the anode cable 13 and the cathode cable 14.
Illustratively, the inlet and outlet pipes 121 and 123 are disposed against the aluminum foil layer 153. It should be noted that, the liquid inlet pipe 121 and the liquid outlet pipe 123 are disposed close to the aluminum foil layer 153, so that the aluminum foil layer 153 can dissipate heat conducted by the positive cable 13 or the negative cable 14 through the liquid inlet pipe 121 and the liquid outlet pipe 123, and thus heat dissipation is facilitated.
Illustratively, the positive cables 13 include first to fifth positive cables, and the negative cables 14 include first to fifth negative cables, and it should be noted that the number of the positive cables 13 and the negative cables 14 is not limited herein, and in other specific embodiments, the number of the positive cables 13 and the negative cables 14 may be set to other numbers according to the needs of users. The first to fourth positive cables are tightly attached to the liquid inlet pipe 121 or the liquid outlet pipe 123, and the fifth positive cable 136 is tightly attached to the aluminum foil layer 153 and the fourth positive cable 135. The first to fourth positive cables are tightly attached to the liquid inlet pipe 121 or the liquid outlet pipe 123, so as to increase the contact area with the liquid cooling pipe, it should be noted that the specific distribution form of the positive cables 13 is not limited herein, and in other specific embodiments, the positive cables 13 may be arranged in other forms according to the needs of users. Meanwhile, the first to fourth negative cables are tightly attached to the liquid outlet pipe 123 or the liquid inlet pipe 121, and the fifth negative cable 146 is tightly attached to the aluminum foil layer 153 and the first negative cable 142. The first to fourth positive cables are tightly attached to the liquid inlet pipe 121 or the liquid outlet pipe 123, so that the contact area between the first to fourth positive cables and the liquid cooling pipe is increased conveniently. Illustratively, in the present embodiment, the first to fourth positive cables are closely attached to the liquid inlet pipe 121, and the first to fourth negative cables are closely attached to the liquid outlet pipe 123.
Illustratively, in the present embodiment, taking the current capacity of 250A as an example, when five positive cables and five negative cables are provided, the diameter of the charging cable is less than or equal to 27 mm. Compared with the traditional technical scheme, the diameter of the wire is smaller, the number of the wires is large, and the heat dissipation area can be effectively increased. Meanwhile, the diameter of the charging cable is smaller than or equal to 27mm, the diameter of the charging cable is reduced, and the weight of the charging cable can be effectively reduced.
In an optional exemplary embodiment, two signal cables 16 are further included, each signal cable 16 includes a plurality of signal wires and a shielding layer 163 wrapping the plurality of signal wires, and each signal wire includes a signal conductor 161 and an insulating layer wrapping the signal conductor 161; wherein, the first bundle of signal cables 164 is tightly attached to the first positive cable 132, the fifth negative cable 156 and the aluminum foil layer 153; the second bundle of signal cables 165 is attached to the fifth positive cable 136, the fourth negative cable 145 and the aluminum foil layer 153. The signal cable 16 is provided to transmit signals more favorably, and the shielding layer 163 is provided to avoid signal interference of the positive cable 13 and the negative cable 14 with the signal cable 16.
In an alternative exemplary embodiment, the grounding cable 17 is further included, the grounding cable 17 includes a grounding wire 171 and an insulating layer wrapping the grounding wire 171, and the grounding cable 17 is located between the second positive cable 133, the third positive cable 134, the second negative cable 143 and the third negative cable 144. It should be noted that the ground wire is a wire directly connected to the earth, and is also called a safety return line, so that high voltage is conveniently transferred to the earth in danger. It is understood that the specific arrangement position of the grounding cables 17 is not limited herein, and in other specific embodiments, the grounding cables 17 can be placed at other positions according to the needs of users.
In an alternative exemplary embodiment, two low voltage power cables are also included; the low-voltage cable comprises a low-voltage wire 181 and an insulating layer wrapping the low-voltage wire 181; it should be noted that low voltage power cables are used to transmit power or information. Illustratively, a first low voltage power cable 182 is positioned between the first bundle of signal cables 164, the second positive cable 133, the second negative cable 143, and the fifth negative cable 146; the second low-voltage power cable 183 is located between the third positive cable 134, the fifth positive cable 136, the second signal cable 165 and the third negative cable 144, it is understood that the specific arrangement position of the two low-voltage power cables is not limited herein, and in other specific embodiments, the two low-voltage power cables may be disposed at other positions according to the requirement of the user.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (10)
1. A charging cable is characterized by comprising an outer sheath, a liquid cooling pipe, a plurality of positive cables and a plurality of negative cables;
the liquid cooling pipe is used for flowing cooling liquid;
at least one part of the plurality of positive cables is tightly attached to the liquid cooling pipe, and each positive cable comprises a positive lead and an insulating layer wrapping the positive lead;
at least one part of the negative cables is tightly attached to the liquid cooling pipe, and each negative cable comprises a negative lead and an insulating layer wrapping the negative lead;
the outer sheath is sleeved on the outer sides of the liquid cooling pipe, the anode cable and the cathode cable.
2. The charging cable of claim 1, wherein the liquid cooled tube comprises two liquid cooled legs, at least a portion of the plurality of positive cables being attached to one of the liquid cooled legs, and at least a portion of the plurality of negative cables being attached to the other of the liquid cooled legs; and/or the liquid cooling pipe is made of flexible materials; and/or the diameter of the charging cable is less than or equal to 27 mm.
3. The charging cable of claim 2, wherein one of the two liquid-cooled branch pipes is a liquid inlet pipe and the other of the two liquid-cooled branch pipes is a liquid outlet pipe; and/or the liquid cooling pipe is made of silica gel or polyurethane materials.
4. The charging cable of claim 3, further comprising a thermal insulation layer wrapped around the plurality of positive cables, the plurality of negative cables, and the liquid cooling tube and disposed inside the outer sheath.
5. The charging cable of claim 4, further comprising a braid disposed on an inner sidewall of the insulating layer.
6. The charging cable of claim 5, further comprising an aluminum foil layer disposed on an inner sidewall of the braid.
7. The charging cable according to claim 6,
the liquid inlet pipe and the liquid outlet pipe are arranged close to the aluminum foil layer;
the positive cables comprise first to fifth positive cables, wherein the first to fourth positive cables are tightly attached to the liquid inlet pipe or the liquid outlet pipe, and the fifth positive cable is tightly attached to the aluminum foil layer and the fourth positive cable;
the negative electrode cables comprise first to fifth negative electrode cables, wherein the first to fourth negative electrode cables are tightly attached to the liquid outlet pipe or the liquid inlet pipe, and the fifth negative electrode cable is tightly attached to the aluminum foil layer and the first negative electrode cable.
8. The charging cable of claim 7, further comprising two bundles of signal cables, each bundle of signal cables comprising a plurality of signal wires and a shielding layer encasing the plurality of signal wires, and each signal wire comprising a signal conductor and an insulating layer encasing the signal conductor; wherein the content of the first and second substances,
the first signal cable is tightly attached to the first positive cable, the fifth negative cable and the aluminum foil layer;
and the second bundle of signal cables are tightly attached to the fifth positive cable, the fourth negative cable and the aluminum foil layer.
9. The charging cable according to claim 8, further comprising a ground cable and two low-voltage power supply cables;
the grounding cable comprises a grounding conductor and an insulating layer wrapping the grounding conductor;
the low-voltage cable comprises a low-voltage wire and an insulating layer wrapping the low-voltage wire;
the grounding cable is positioned among the second positive cable, the third positive cable, the second negative cable and the third negative cable; wherein the content of the first and second substances,
the first low-voltage power cable is positioned among the first beam of signal cable, the second positive cable, the second negative cable and the fifth negative cable;
the second low-voltage power cable is positioned among the third positive cable, the fifth positive cable, the second signal cable and the third negative cable.
10. The charging cable of claim 7, wherein the outer sheath is made of one or more of PVC, TPE, TPU, rubber materials; and/or the presence of a gas in the gas,
the heat insulation layer is made of non-woven fabric materials; and/or the presence of a gas in the gas,
the braid is made of tin-plated copper and/or copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796458.2A CN113380451A (en) | 2021-07-14 | 2021-07-14 | Charging cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796458.2A CN113380451A (en) | 2021-07-14 | 2021-07-14 | Charging cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113380451A true CN113380451A (en) | 2021-09-10 |
Family
ID=77582056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110796458.2A Pending CN113380451A (en) | 2021-07-14 | 2021-07-14 | Charging cable |
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| Country | Link |
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| CN (1) | CN113380451A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103881A1 (en) * | 2021-12-10 | 2023-06-15 | 北京车和家汽车科技有限公司 | Cable |
| WO2023165436A1 (en) * | 2022-03-01 | 2023-09-07 | 长春捷翼汽车科技股份有限公司 | Liquid-cooled cable |
-
2021
- 2021-07-14 CN CN202110796458.2A patent/CN113380451A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103881A1 (en) * | 2021-12-10 | 2023-06-15 | 北京车和家汽车科技有限公司 | Cable |
| WO2023165436A1 (en) * | 2022-03-01 | 2023-09-07 | 长春捷翼汽车科技股份有限公司 | Liquid-cooled cable |
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