CN217134070U - Liquid cooling cable and charging device - Google Patents

Abstract

The utility model discloses a liquid cooling cable and charging device, the liquid cooling cable includes: the interior of the liquid outlet pipe is of a hollow structure and used for flowing of cooling liquid, and at least two liquid outlet pipes are arranged; the bare conductor is arranged in the liquid outlet pipe, and the outer wall of the bare conductor and the inner wall of the liquid outlet pipe are arranged at intervals to form a liquid flow channel for the cooling liquid to flow; each liquid outlet pipe is correspondingly provided with one liquid inlet pipe, and the liquid outlet pipes are communicated with the corresponding liquid inlet pipes to form cooling loops for cooling liquid to flow through and are independent from each other, so that each bare conductor corresponds to one cooling loop respectively; and the outer sheath is provided with a containing cavity for coating the liquid outlet pipe, the bare conductor and the liquid inlet pipe. The utility model provides a liquid cooling cable and charging device has solved the not good enough technical problem of radiating effect of current liquid cooling cable.

Description

Liquid cooling cable and charging device

The present application claims priority from chinese patent application, entitled "liquid cooling cable and charging device," filed at 31/12/2021 by the chinese patent office, application number 202123437122.1, the entire contents of which are incorporated herein by reference.

Technical Field

The utility model relates to a cable field especially relates to a liquid cooling cable and charging device.

Background

In recent years, with the rapid development of new energy technologies, electric vehicles enter the household and commercial fields in large quantities, users have higher and higher requirements on battery capacity, driving range and charging speed, and high-power charging technologies are gradually developed. High-power charging pile's voltage is high, the electric current is big, can produce a large amount of heats at the in-process of using, and power is big more moreover, and the cable generates heat more easily, and the cable after generating heat has the risk of causing the conflagration.

In order to solve the problem of current limiting caused by overhigh temperature in the charging process, new products such as a liquid cooling cable, a liquid cooling charging gun, a liquid cooling socket and the like gradually appear on the market, the liquid cooling cable can realize the purposes of conducting electricity and radiating heat by using cooling liquid at the same time, and the stable operation of the cable under larger current is guaranteed. But the radiating effect of current liquid cooling cable is not good enough, is unfavorable for using widely on a large scale.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liquid cooling cable and charging device aims at solving the not good enough technical problem of current liquid cooling cable radiating effect.

In order to achieve the above object, an embodiment of the present invention provides a liquid cooling cable, including:

the interior of the liquid outlet pipe is of a hollow structure and used for flowing of cooling liquid, and at least two liquid outlet pipes are arranged;

the bare conductor is arranged in the liquid outlet pipe, and the outer wall of the bare conductor and the inner wall of the liquid outlet pipe are arranged at intervals to form a liquid flow channel for the cooling liquid to flow;

each liquid outlet pipe is correspondingly provided with one liquid inlet pipe, and the liquid outlet pipes are communicated with the corresponding liquid inlet pipes to form cooling loops for cooling liquid to flow through and are independent from each other, so that each bare conductor corresponds to one cooling loop respectively; and

and the outer sheath is provided with a containing cavity for coating the liquid outlet pipe, the bare conductor and the liquid inlet pipe.

Optionally, the outer sheath includes an insulating layer and an identification layer attached to one side of the insulating layer facing the bare conductor, and the insulating layer and the identification layer form the accommodating cavity.

Optionally, the liquid cooling cable further comprises a plurality of wire cores disposed in the accommodating cavity.

Optionally, the liquid outlet pipe and the liquid inlet pipe are respectively provided with two liquid outlet pipes, one liquid outlet pipe is correspondingly communicated with one liquid inlet pipe, the two liquid outlet pipes are symmetrically arranged in the accommodating cavity, and the two liquid inlet pipes are arranged on one side of the section where the axes of the two liquid outlet pipes are located.

Optionally, the liquid cooling cable further comprises a grounding wire, and the grounding wire and the two liquid inlet pipes are arranged on two opposite sides of the cross section where the axes of the liquid outlet pipes are located.

Optionally, the liquid cooling cable still includes the explosion-proof layer, the inner wall of drain pipe and/or the outer wall of drain pipe is equipped with the explosion-proof layer.

Optionally, the outer wall of the bare conductor is coated with a braid.

Optionally, the braided layer is made of metal.

To achieve the above objective, an embodiment of the present invention provides a charging device, including the above-described liquid cooling cable.

Compared with the prior art, in the technical scheme provided by the utility model, the liquid outlet pipe is a hollow pipe body, and the cooling liquid flows in the liquid outlet pipe; bare conductor is used for being connected in order to switch on the circuit with outside battery charging outfit electricity, and after the circuit switched on, bare conductor can produce a large amount of heats, sets up bare conductor in the inside of drain pipe, and when the coolant liquid in the drain pipe flowed between the inner wall of drain pipe and bare conductor's outer wall, can take away the heat on bare conductor surface to in time dispel the heat to bare conductor, make bare conductor's temperature be in the safety range, avoid bare conductor's high temperature and the potential safety hazard appears. Moreover, the direct surface contact with the bare conductor of coolant liquid to can absorb the heat that the bare conductor produced in a large number, including the coolant liquid is the circulation, the produced heat when can be the bare conductor circular telegram of taking away of high efficiency, and then improve the radiating effect of liquid cooling cable. In addition, each drain pipe all corresponds and is provided with a feed liquor pipe, the feed liquor pipe only carries the coolant liquid for the drain pipe that corresponds, form a plurality of different cooling circuit, each bare conductor all dispels the heat through an independent cooling circuit, because of the too big load that surpasss the coolant liquid of heat of a plurality of bare conductors when avoiding a plurality of bare conductors to dispel the heat through same cooling circuit, the coolant liquid in each cooling circuit only soaks a bare conductor, can take away more heats on the surface of bare conductor, further improve the radiating effect of liquid cooling cable, the electric current bearing capacity of liquid cooling cable has been increaseed, make the liquid cooling cable that this technical scheme provided can be applied to on various high-power circular telegram equipment or connectors.

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 embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions 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 view of an embodiment of a liquid-cooled cable according to the present invention;

fig. 2 is a schematic view of a cross-sectional structure of an embodiment of the liquid-cooled cable of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				11	Liquid outlet pipe	21	Bare conductor
30	Liquid inlet pipe	40	Outer sheath
				41	Insulating layer	42	Identification layer
12	Explosion-proof layer	60	Wire core
				70	Ground wire	22	Woven layer

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope protected by the embodiments of the present invention.

It should be noted that all the directional indicators (such as upper, lower, 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 motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions related to "first", "second", and the like in the embodiments of the present invention are only for descriptive purposes 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 embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" and the like are to be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; 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 meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In addition, technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory to each other or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the combination is not within the protection scope claimed by the embodiments of the present invention.

In the use process of the electric automobile, the requirement of users for quick charging is higher and higher. In order to realize quick high-power charging and avoid overhigh temperature of a cable in the charging process, increasing the wire diameter of the cable is a common choice. However, increasing the wire diameter may cause higher cost, and also may cause an increase in the weight of the cable, which may increase the volume of the charging gun and other accessories, so that the entire charging device becomes more robust and heavier. Therefore, the adoption of a small-wire-diameter and light-weight liquid cooling cable to reduce the temperature of the cable becomes a hot proposal for solving the problem of high-power charging. However, the existing liquid cooling cable has poor heat dissipation effect when in use, affects customer experience, and cannot be popularized and used on a large scale.

In view of this, the embodiment of the utility model provides a liquid cooling cable and charging device, set up the bare conductor in the drain pipe, the bare conductor is soaked to the coolant liquid, make the direct surface contact with the bare conductor of coolant liquid, all correspond for each bare conductor simultaneously and set up a cooling circuit, under interact between them, heat exchange and the heat transfer between bare conductor and the coolant liquid have been accelerated, can take away more heats on bare conductor surface, thereby improve the radiating effect of coolant liquid to the bare conductor, effectively reduce the temperature of bare conductor, improve the security of liquid cooling cable when using.

In order to better understand the technical scheme, the technical scheme is described in detail below with reference to the accompanying drawings.

As shown in fig. 1-2, an embodiment of the present invention provides a liquid cooling cable, including:

the interior of the liquid outlet pipe 11 is of a hollow structure and is used for flowing cooling liquid, and at least two liquid outlet pipes 11 are arranged;

the bare conductor 21 is arranged in the liquid outlet pipe 11, and the outer wall of the bare conductor 21 and the inner wall of the liquid outlet pipe 11 are arranged at intervals to form a liquid flow channel for cooling liquid to flow;

each liquid outlet pipe 11 is correspondingly provided with one liquid inlet pipe 30, the liquid outlet pipes 11 are communicated with the corresponding liquid inlet pipes 30 to form cooling loops for cooling liquid to flow through and are mutually independent, and each bare conductor 21 corresponds to one cooling loop respectively; and

and the outer sheath 40 is formed with a containing cavity for coating the liquid outlet pipe 11, the bare conductor 21 and the liquid inlet pipe 30.

In the technical scheme adopted in the embodiment, the liquid outlet pipe 11 is a hollow pipe body, and cooling liquid flows through the inside of the hollow pipe body; bare conductor 21 is used for being connected in order to switch on the circuit with outside battery charging outfit electricity, after the circuit switches on, bare conductor 21 can produce a large amount of heats, set up bare conductor 21 in the inside of drain pipe 11, when the coolant liquid in drain pipe 11 flows between the inner wall of drain pipe 11 and bare conductor 21's outer wall, can take away the heat on bare conductor 21 surface, thereby in time dispel the heat to bare conductor 21, the temperature that makes bare conductor 21 is in the safety range, avoid bare conductor 21's high temperature and the potential safety hazard appears. Moreover, the cooling liquid is direct to be in contact with the surface of the bare conductor 21, so that heat generated by the bare conductor 21 can be absorbed in a large amount, and in addition, the cooling liquid circulates, so that the heat generated when the bare conductor 21 is electrified can be efficiently taken away, and the heat dissipation effect of the liquid cooling cable is further improved. In addition, each liquid outlet pipe 11 is correspondingly provided with a liquid inlet pipe 30, the liquid inlet pipe 30 only conveys cooling liquid for the corresponding liquid outlet pipe 11 to form a plurality of different cooling loops, each bare conductor 21 is cooled through an independent cooling loop, the situation that the heat of the plurality of bare conductors 21 exceeds the load of the cooling liquid due to too large heat of the plurality of bare conductors 21 when the plurality of bare conductors 21 are cooled through the same cooling loop is avoided, the cooling liquid in each cooling loop only soaks one bare conductor 21, more heat on the surface of the bare conductor 21 can be taken away, the heat dissipation effect of the liquid cooling cable is further improved, the current bearing capacity of the liquid cooling cable is increased, and the liquid cooling cable provided by the technical scheme can be applied to various high-power electrifying equipment or connectors.

Specifically, the liquid cooling cable that this embodiment provided can be applied to powerful battery charging outfit, like charging rifle or charging seat etc. and the liquid cooling cable can include drain pipe 11, feed liquor pipe 30 and set up at the inside bare conductor 21 of drain pipe 11.

The bare conductor 21 is a main line of the liquid cooling cable, and may be made of a conductive material, such as copper, and may be electrically connected to an external charging device to conduct a circuit, the bare conductor 21 may be a single wire or a bundle of multiple wires, and preferably, the bundle of multiple wires is collected to form a power conductor, so as to ensure that the power conductor has a strong current carrying capability. In order to avoid the plurality of conducting wires from being loose when being gathered, the conducting wires can be fixed by the braided layer.

The liquid outlet pipe 11 is a hollow tubular structure, and the cooling liquid can flow in the liquid outlet pipe 11. The bare conductor 21 is arranged in the liquid outlet pipe 11, cooling liquid circulates between the outer wall of the bare conductor 21 and the inner wall of the liquid outlet pipe 11, and heat on the surface of the bare conductor 21 can be taken away in the flowing process of the cooling liquid, so that heat dissipation of the bare conductor 21 is realized. It should be noted that the periphery of each bare conductor 21 is covered with one liquid outlet tube 11, that is, each liquid outlet tube 11 only cools and cools the bare conductor 21 covered therein, so that the cooling system of the bare conductor 21 is relatively independent, and the heat dissipation effect is improved. The liquid outlet pipe 11 may be made of a flexible insulating material, for example, a flexible plastic pipe or a rubber pipe, and has good flexibility to facilitate covering the bare conductor 21. In addition, drain pipe 11 is made by flexible material, is favorable to drain pipe 11 to take place local deformation to increase the volume between the inner wall of drain pipe 11 and the outer wall of bare conductor 21, make more coolant liquid get into the liquid flow channel, better dispel the heat to bare conductor 21, and then improve the radiating efficiency. It should be noted that, in this embodiment, a specific material of the liquid outlet tube 11 is not limited, and in other embodiments, a hydrolysis-resistant insulating material may be adopted according to actual use requirements, and the material has a certain softness and high mechanical strength, so as to ensure that the liquid outlet tube 11 can be coated on the periphery of the bare conductor 21. The cooling liquid may be an insulating liquid having a good thermal conductivity, and for example, any one of transformer oil, capacitor oil, cable oil, silicone oil, or mineral oil may be used. Preferably, the cooling liquid is transformer oil which has much higher insulating strength than air, and the transformer oil has high specific heat and good cooling effect. It should be noted that the present embodiment is not limited to a specific material of the cooling liquid, and in other embodiments, the cooling liquid may be made of other suitable materials according to the needs of the user. Two or more liquid outlet pipes 11 may be provided, and this embodiment is not limited.

The liquid inlet pipe 30 is used for conveying cooling liquid for the liquid outlet pipes 11, and each liquid outlet pipe 11 is correspondingly provided with one liquid inlet pipe 30 and communicated with each other, that is, the liquid inlet pipes 30 and the liquid outlet pipes 11 are arranged in one-to-one correspondence to form a plurality of independent cooling loops. The coolant flows in the corresponding cooling circuit, and can dissipate heat for the bare conductor 21 in the cooling circuit. When the cooling liquid flows, most of heat on the surface of the bare conductor 21 can be taken away, and effective heat dissipation of the bare conductor 21 is realized. In current design, it is usually that a liquid cooling pipe carries out cooling to many conductors simultaneously, and the capacity of coolant liquid is effectual in the liquid cooling pipe, and the heat that it can take away is also effectual, and the heat that many conductors produced when the circular telegram is very big, and the radiating demand of many conductors simultaneously just can't be satisfied to the coolant liquid in the liquid cooling pipe this time, has reduced the radiating effect of conductor. In the embodiment, an independent cooling loop is arranged for each bare conductor 21, so that the problems are well solved, more heat on the surface of the bare conductor 21 can be taken away, and the heat dissipation effect of the liquid cooling cable is improved.

The oversheath 40 is used for protecting bare conductor 21, and the inside of oversheath 40 forms the holding cavity, and bare conductor 21, drain pipe 11 and feed liquor pipe 30 set up in the holding cavity, utilize the holding cavity can the cladding in bare conductor 21, the periphery of drain pipe 11 and feed liquor pipe 30 for bare conductor 21 does not expose, has realized hiding of bare conductor 21, can avoid bare conductor 21 to receive external damage on the one hand, and on the other hand can avoid bare conductor 21 electric leakage and take place the power consumption danger. The outer sheath 40 may be made of an insulating material, may be made of any one of PVC, TPE, TPU and rubber materials, and may be shaped like a cylinder, so as to form a receiving cavity, thereby simplifying the production process, improving the production efficiency and reducing the production cost.

Further, referring to fig. 2, the outer sheath 40 includes an insulating layer 41 and an identification layer 42 attached to one side of the insulating layer 41 facing the bare conductor 21, and the insulating layer 41 and the identification layer 42 form an accommodating cavity.

In the technical solution adopted in this embodiment, the outer sheath 40 may include an insulating layer 41 and an identification layer 42, and the insulating layer 41 is used for preventing the bare conductor 21 from leaking electricity and causing injury to a user. The setting of discernment layer 42 is in one side of insulating layer 41 towards bare conductor 21, and wearing and tearing appear after the liquid cooling cable is used for a long time, and when insulating layer 41 was because of taking place wearing and tearing to exposing discernment layer 42, discernment layer 42 can play the warning effect, is favorable to the user to discover that the wearing and tearing of the oversheath 40 of liquid cooling cable has surpassed the safety range, reminds the user to need to change or maintain the cable to avoid producing the risk. In this embodiment, for the convenience of observation by a user, the identification layer 42 may be different from the insulating layer 41 in material, shape, or color, and only needs to visually observe that the insulating layer 41 of the outer sheath 40 is completely worn and has a potential safety hazard. Illustratively, the insulation layer 41 may be made of black, abrasion-resistant insulation material, and the identification layer 42 may be made of red material, so as to facilitate observation by a user. In addition, in order to improve the insulation effect, the insulation layer 41 and the identification layer 42 may be made of insulation materials, and in this case, for the convenience of distinguishing the two, the shape or color of the insulation layer 41 and the identification layer 42 may be different, or of course, a warning mark, such as a continuously arranged exclamation mark or a triangular symbol, may be arranged on the identification layer 42, and when the insulation layer 41 is completely worn, the warning mark on the identification layer 42 is exposed, and when a user sees the exposed warning mark, the user may clearly need to repair or replace the liquid cooling cable.

Further, referring to fig. 1 and 2, the liquid-cooled cable further includes a plurality of wire cores 60 disposed within the receiving cavity.

In the technical solution adopted in this embodiment, the wire core 60 is used to electrically connect a low-power device, and may be a cable with an insulating layer or a bare cable. A filler may be provided within the insulation to secure the wire core 60 within the insulation.

Furthermore, two liquid outlet pipes 11 and two liquid inlet pipes 30 are respectively arranged, one liquid outlet pipe 11 is correspondingly communicated with one liquid inlet pipe 30, the two liquid outlet pipes 11 are symmetrically arranged in the accommodating cavity, and the two liquid inlet pipes 30 are arranged on one side of the section of the axis of the two liquid outlet pipes 11.

In the technical scheme adopted in this embodiment, two liquid outlet pipes 11 and two liquid inlet pipes 30 are provided, which may be a first liquid outlet pipe, a second liquid outlet pipe, a first liquid inlet pipe and a second liquid inlet pipe, respectively, wherein the first liquid outlet pipe and the first liquid inlet pipe are communicated to form a first cooling loop, so as to dissipate heat of the bare conductor 21 in the first liquid outlet pipe; the second liquid outlet pipe and the second liquid inlet pipe are communicated to form a second cooling loop so as to radiate the heat of the bare conductor 21 in the second liquid outlet pipe. Thus, the independent design of cooling loops of different bare conductors 21 is realized, more heat on the surface of the bare conductor 21 can be taken away, and the heat dissipation effect is improved. First drain pipe and second drain pipe symmetry setting in the holding cavity, it can be understood that, the center pin of sheath 40 is the axis symmetry setting outside first drain pipe and the second drain pipe, first drain pipe and second drain pipe set up the both sides at the center pin promptly, on the one hand can make full use of space, make overall structure compacter, on the other hand makes naked conductor 21 evenly distributed, avoid the temperature difference of different positions in the sheath 40 great and produce local high temperature, thereby further improve the security that the liquid cooling cable used.

Further, referring to fig. 1 and 2, the liquid-cooled cable further includes a ground line 70, and the ground line 70 and the two liquid inlet pipes 30 are disposed on opposite sides of a cross section where the axes of the two liquid outlet pipes 11 are located.

In the technical solution adopted in this embodiment, the grounding wire 70 is also called a safety return line, so that it is convenient to directly transfer high voltage to the ground in case of danger, thereby avoiding electric shock of the user. The grounding wire 70 and the two liquid inlet pipes 30 in the embodiment are arranged oppositely, it can be understood that the grounding wire 70 is arranged on one side of the cross section where the axes of the two liquid outlet pipes 11 are located, the two liquid inlet pipes 30 are arranged on the same side of the cross section where the axes of the two liquid outlet pipes 11 are located, and the grounding wire 70 and the two liquid inlet pipes 30 are arranged on the two opposite sides of the cross section where the axes of the two liquid outlet pipes 11 are located, so that the grounding wire 70, the two liquid inlet pipes 30 and the two liquid outlet pipes 11 are compactly arranged in the accommodating cavity, the space in the outer sheath 40 can be effectively utilized, and the liquid cooling cable is smaller. It should be noted that, in other embodiments, the grounding wire 70 may be disposed at other positions in the accommodating cavity according to the requirements of users or practical applications. In this embodiment, the ground wire 70 may include a ground conductor and a ground insulating layer, and the ground insulating layer is wrapped around the ground conductor.

Further, referring to fig. 1 and 2, the liquid-cooled cable further includes an explosion-proof layer 12, and the inner wall of the liquid outlet pipe 11 and/or the outer wall of the liquid outlet pipe 11 is provided with the explosion-proof layer 12.

In the technical scheme adopted by the embodiment, in the process of electrifying and using the liquid cooling cable, the explosion-proof layer 12 can tightly support and wrap the liquid outlet pipe 11 which is heated and softened, so that the pressure resistance of the liquid outlet pipe 11 is improved, the liquid outlet pipe 11 can bear the pressure of the internal cooling liquid generated due to high temperature, the liquid outlet pipe 11 is prevented from bursting under the conditions of high temperature and high pressure, the use safety is improved, and the service life of the liquid cooling cable is prolonged. In the present embodiment, the explosion-proof layer 12 may be a woven mesh woven from any one of filaments such as copper wires, nylon wires, and bulletproof wires. Preferably, the material of explosion-proof layer 12 is nylon, and nylon's resilience, fatigue resistance and thermal stability are better, can keep relatively stable under high temperature environment to effectively support drain pipe 11. In this embodiment, an explosion-proof layer 12 may be disposed on an inner wall of the liquid outlet pipe 11, an explosion-proof layer 12 may be disposed on an outer wall of the liquid outlet pipe 11, and the explosion-proof layer 12 may be disposed on the inner wall and the outer wall of the liquid outlet pipe 11 at the same time, which may be selected according to actual usage requirements, and is not limited herein.

Further, referring to fig. 1 and 2, an outer wall of the bare conductor 21 is coated with a braid 22.

In the technical scheme adopted by this embodiment, through the braided layer 22 that sets up, can protect naked conductor 21, avoid naked conductor 21 unexpected fracture and influence the conduction of circuit. In addition, if the bare conductor 21 is formed by winding a plurality of wires, loosening between the different wires of the bare conductor 21 upon assembly can be avoided by providing the braid 22. The material of the woven layer 22 may be the same as that of the explosion-proof layer 12.

Further, the material of the braid 22 is metal.

In the technical scheme adopted in this embodiment, the bare conductor 21 is a main wire of the liquid-cooled cable, and in order to avoid the braid 22 from affecting the electrical conductivity of the bare conductor 21, the braid 22 may be woven by a metal material. Specifically, weaving layer 22 can be woven by metal copper or aluminium foil and form, and metal copper or aluminium foil all have good ductility, heat conductivity and electric conductivity, under the prerequisite that does not influence naked conductor 21's electric conductive property, not only make things convenient for the cladding naked conductor 21, improve the convenience of assembly, can also accelerate the heat transfer between naked conductor 21 and the coolant liquid, be favorable to naked conductor 21's heat dissipation, improve the inside temperature homogeneity of oversheath 40, avoid appearing local high temperature.

The embodiment of the utility model provides a still provide a charging device, this charging device includes as above liquid cooling cable, and is specific, and the concrete structure of liquid cooling cable refers to above-mentioned embodiment, because this charging device has adopted the whole technical scheme of above-mentioned embodiment, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.

The above is only the preferred embodiment of the present invention, and the patent scope of the embodiments of the present invention is not limited thereby, and all the equivalent structure changes made by the embodiment of the present invention and the attached drawings or the direct/indirect application in other related technical fields are included in the patent protection scope of the embodiments of the present invention.

Claims (9)

1. A liquid cooled cable, comprising:

the interior of the liquid outlet pipe is of a hollow structure and used for flowing of cooling liquid, and at least two liquid outlet pipes are arranged;

the bare conductor is arranged in the liquid outlet pipe, and the outer wall of the bare conductor and the inner wall of the liquid outlet pipe are arranged at intervals to form a liquid flow channel for the cooling liquid to flow;

each liquid outlet pipe is correspondingly provided with one liquid inlet pipe, and the liquid outlet pipes are communicated with the corresponding liquid inlet pipes to form cooling loops for cooling liquid to flow through and are independent from each other, so that each bare conductor corresponds to one cooling loop respectively; and

and the outer sheath is provided with a containing cavity for coating the liquid outlet pipe, the bare conductor and the liquid inlet pipe.

2. The liquid-cooled cable of claim 1, wherein the outer jacket comprises an insulating layer and an identification layer attached to a side of the insulating layer facing the bare conductor, the insulating layer and the identification layer forming the receiving cavity.

3. The liquid-cooled cable of claim 1, further comprising a plurality of wire cores disposed within the receiving cavity.

4. The liquid-cooled cable of claim 1, wherein there are two liquid outlets and two liquid inlets, one liquid outlet corresponding to one liquid inlet, the two liquid outlets symmetrically disposed in the cavity, and the two liquid inlets disposed on one side of a cross-section of the two liquid outlets.

5. The liquid-cooled cable of claim 4, further comprising a ground line, wherein the ground line and the two inlet tubes are disposed on opposite sides of a cross-section of the two outlet tubes along an axis.

6. The liquid-cooled cable of claim 1, further comprising an explosion-proof layer, wherein the explosion-proof layer is disposed on an inner wall of the drain and/or an outer wall of the drain.

7. The liquid-cooled cable of claim 1, wherein an outer wall of the bare conductor is coated with a braid.

8. The liquid-cooled cable of claim 7, wherein the braid is metal.

9. A charging device comprising a liquid-cooled cable as claimed in any one of claims 1 to 8.

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