CN220821175U

CN220821175U - Liquid cooling charging cable

Info

Publication number: CN220821175U
Application number: CN202322620529.0U
Authority: CN
Inventors: 任云
Original assignee: Mianyang Long Letter Cable Co ltd
Current assignee: Mianyang Long Letter Cable Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2024-04-19
Anticipated expiration: 2033-09-26

Abstract

The utility model discloses a liquid cooling charging cable, which comprises a power line and a signal line, and is characterized by further comprising: the support tube is arranged in the positioning core inside the support tube; wherein, a plurality of separation strips connected with the inner wall of the support tube extend outwards on the periphery of the positioning core; the center of the positioning core is of a hollow tubular structure, so that a liquid outlet cavity for containing cooling liquid is formed in the middle cavity, and a cavity formed by surrounding adjacent separation strips and supporting tubes is a liquid inlet cavity for cooling liquid; the power line is arranged in the liquid inlet cavity; the signal wire is arranged at one end, close to the supporting tube, of the inside of the separation strip; the liquid inlet cavity and the liquid outlet cavity are of a closed structure at one end close to the charging gun and are communicated with each other, and a cooling liquid interface communicated with the circulating cooling device is arranged at the other end of the liquid inlet cavity and the liquid outlet cavity. The utility model provides a liquid cooling charging cable which has quick and obvious cooling effect, has smaller diameter and is beneficial to the movement, collection and use of the cable.

Description

Liquid cooling charging cable

Technical Field

The utility model relates to the technical field of electric automobile charging equipment. More particularly, the present utility model relates to a liquid cooled charging cable.

Background

The fuel of the automobile mainly comes from petroleum, the demand of the petroleum is increasing, and the petroleum is in danger of exhaustion because of limited reserves of the petroleum, and the environment is seriously polluted. The new energy electric automobile is a zero-emission or ultra-low-emission automobile, is a fundamental measure for solving the emission of the motor vehicle, and is developed, popularized and applied, thereby providing an effective way for fundamentally improving the quality of the urban atmospheric environment. The new energy automobile uses other energy sources to replace common fuel energy sources as driving power, is energy-saving and environment-friendly, is supported by various countries and places, not only is the new energy automobile industry developed on a large scale, but also matched charging piles and charging stations are widely constructed and put into operation.

At present, a high-power charging method is generally adopted to greatly shorten the charging time, the high-power charging inevitably brings about rapid increase of charging current, the cable generates heat and high temperature rise, the insulation layer and the protective sleeve of the cable are damaged due to the excessively high cable temperature rise, the insulation performance of the cable is reduced, and the risk of short circuit is caused.

Patent publication number CN113140370A provides a new energy automobile fills electric pile special cable, special cable one end is connected to fills electric pile, the other end is connected to the rifle that charges, including location core, wire, location strip and stay tube, the location core is both ends confined flexible body, and location core inner space forms the feed liquor chamber, a plurality of the even circumference array of wire sets up in location core circumference outside, the stay tube is both ends confined flexible body and coaxial setting in the location core outside, the both ends of wire seal respectively stretches out the both ends of stay tube, and the space between stay tube and the location core forms out the liquid chamber, the location strip is the rectangular form of being made by elastic material, and the location strip sets up between stay tube and location core, feed liquor chamber and play liquid intracavity are filled with the conduction oil. The invention aims to solve or at least reduce the problem of heating of the cable during fast charging.

The above patent solves the problem of heat dissipation of the cable by arranging the positioning core, the positioning strip and the supporting tube to form the liquid inlet cavity and the liquid outlet cavity, but the design of the cable ensures that the liquid in the liquid inlet cavity cools the lead through the positioning core, the cooling effect is poor and the cable has obvious hysteresis; and for charging the automobile, the charging cable itself needs enough diameter to bear large current and large power, and the structure of the positioning strip further increases the diameter of the charging cable, thereby influencing the movement, collection and use of the cable.

Disclosure of utility model

It is an object of the present utility model to address the above problems and/or disadvantages and to provide advantages which will be described below.

To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a liquid-cooled charging cable including a power line, a signal line, characterized by further comprising: the support tube is arranged in the positioning core inside the support tube;

wherein, a plurality of separation strips connected with the inner wall of the support tube extend outwards on the periphery of the positioning core;

The center of the positioning core is of a hollow tubular structure, so that a liquid outlet cavity for containing cooling liquid is formed in the middle cavity, and a cavity formed by surrounding adjacent separation strips and supporting tubes is a liquid inlet cavity for cooling liquid;

The power line is arranged in the liquid inlet cavity;

The signal wire is arranged at one end, close to the supporting tube, of the inside of the separation strip;

The liquid inlet cavity and the liquid outlet cavity are of a closed structure at one end close to the charging gun and are communicated with each other, and a cooling liquid interface communicated with the circulating cooling device is arranged at the other end of the liquid inlet cavity and the liquid outlet cavity.

Preferably, a steel wire rope is arranged inside one end of each separation strip, which is close to the liquid outlet cavity.

Preferably, the inner wall of the supporting tube is provided with a positioning strip at the contact part with the separation strip;

the separating strip is provided with a groove matched with the positioning strip.

Preferably, a plurality of intermittent strips are arranged on the power line sheath in a protruding mode;

the intermittent strips are axially disposed along the power line and are disposed in a discontinuous shape.

Preferably, an insulating layer and an outer protective layer are arranged on the outer side of the supporting tube; and a support section spirally wound is arranged at one end, close to the charging gun, of the outer side of the outer protective layer.

Preferably, a section of spiral winding type protective sleeve is arranged at the non-supporting section position outside the outer protective layer;

The protective sleeve can move outside the outer protective layer of the charging cable.

The utility model at least comprises the following beneficial effects:

The cavity formed between the positioning core and the supporting tube is set as a cooling liquid inlet cavity, so that the power line is directly contacted with the cooling liquid in the liquid inlet cavity to cool, and the cooling effect is quick and obvious; and secondly, by arranging the signal wires in the separation strips, the cable space is reasonably and fully utilized while the positioning core supporting structure is perfected, the diameter of the charging cable is reduced, and the movement, collection and use of the cable are facilitated.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic cross-sectional view of a liquid cooled charging cable in one embodiment of the utility model;

Fig. 2 is a three-dimensional schematic of a liquid cooled charging cable in one embodiment of the utility model.

In the figure, a mark 1, a positioning core 11, a liquid inlet cavity 12, a liquid outlet cavity 13, a steel wire rope 14, a groove 15, a separation strip 2, a power wire 21, a break strip 3, a signal wire 4, a support tube 41, a positioning strip 5, an insulating layer 6, an outer protective layer 7 and a support section/protective sleeve are marked.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that, in the description of the present utility model, the orientation or positional relationship indicated by the term is based on the orientation or positional relationship shown in the drawings, which are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, may be a detachable connection, or may be integrally connected, may be mechanically connected, may be electrically connected, may be directly connected, may be indirectly connected through an intermediate medium, may be communication between two members, and may be understood in a specific manner by those skilled in the art.

Furthermore, in the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first and second features, or an indirect contact of the first and second features through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

A liquid cooling charging cable, the structure of which is shown in fig. 1, comprising a power line 2 and a signal line 3, and the liquid cooling charging cable is characterized by further comprising: the support tube 4 is arranged in the positioning core 1 inside the support tube;

Wherein, a plurality of separation strips connected with the inner wall of the supporting tube 4 extend outwards on the periphery of the positioning core 1;

The center of the positioning core 1 is of a hollow tubular structure, so that a liquid outlet cavity 11 for containing cooling liquid is formed in the middle cavity, and a cavity formed by surrounding adjacent separation strips and the supporting tube 4 is a liquid inlet cavity 12 for cooling liquid;

the power line 2 is arranged inside the liquid inlet cavity 12;

The signal wire 3 is arranged at one end, close to the support tube 4, of the inside of the separation strip 15;

The liquid inlet cavity 12 and the liquid outlet cavity 11 are of a closed structure at one end close to the charging gun and are communicated with each other, and a cooling liquid interface communicated with the circulating cooling device is arranged at the other end.

Working principle: in practical application, four power lines 2 are all arranged in the charging cable, the positioning core 1 is made of flexible materials, and a square cavity is arranged at the center of the positioning core according to the number of the power lines 2 (the space in the charging cable is reasonably utilized to increase the cavity area) to serve as a liquid outlet cavity 11 of cooling liquid; four corners of the square liquid outlet cavity 11 are outwards extended with four separation strips 15 connected with the inner wall of the support tube 4, the separation strips 15 are tightly matched with the support tube 4 to prevent the positioning core 1 from shifting, and four liquid inlet cavities 12 slightly larger than the power line are respectively formed between the adjacent separation strips 15 and the support tube 4; the four power lines 2 are respectively arranged in the four liquid inlet cavities 12; the cooling liquid is firstly connected into the liquid inlet cavity 12 from the cooling device of the charging cabinet through the cooling liquid interface, the power line 2 is directly and rapidly cooled, then flows into the liquid outlet cavity 11 in the middle at one end of the charging gun, flows back to the cooling device of the charging cabinet through the cooling liquid interface along the liquid outlet cavity 11, and enters the liquid inlet cavity 12 again for circulation and practicability after being cooled by the refrigerating device; the power line 2 is directly contacted with the cooling liquid in the liquid inlet cavity 12 to cool, and the cooling effect is quick and obvious. One end of the four separation strips 15, which is close to the supporting tube 4, is slightly larger, and a signal wire 3 harness is arranged in the four separation strips; the supporting structure of the positioning core 1 is filled and perfected through the signal wire 3, the space of the cable is reasonably and fully utilized, the diameter of the charging cable is reduced, and the movement, collection and use of the cable are facilitated.

Example 2

Embodiment 2 is shown in fig. 1 as a preferred example of the present utility model, and the following modifications are disclosed on the basis of embodiment 1: and a steel wire rope 13 is arranged inside one end of each separation strip 15 close to the liquid outlet cavity 11.

Working principle: in practical application, four steel wire ropes 13 are arranged inside one end, close to the four corners of the liquid outlet cavity 11, of the four separation strips 15, the steel wire ropes 13 are stranded of a plurality of steel wires, and the tensile resistance of the charging cable can be improved.

Example 3

Embodiment 3 is shown in fig. 1 as a preferred example of the present utility model, and the following modifications are disclosed on the basis of embodiment 1: the inner wall of the supporting tube 4 is provided with a positioning strip 41 at the contact position with the separation strip 15;

the dividing strip 15 is provided with a groove 14 matched with the positioning strip 41.

Working principle: in practical application, four square positioning strips 41 are arranged at the contact positions of the inner side of the support tube 4 and the four separation strips 15, and the width of the positioning strips 41 is less than two thirds of the arc length of the support tube 4 in contact with the separation strips 15; square grooves 14 matched with the positioning strips 41 are arranged at corresponding positions on the separation strips 15; the positioning strip 41 further limits the displacement of the positioning core 1 in the middle of the supporting tube 4, so that the positions of all parts in the charging cable are fixed, and the structure is more stable.

Example 4

Embodiment 3 is shown in fig. 1 as a preferred example of the present utility model, and the following modifications are disclosed on the basis of embodiment 1: a plurality of intermittent strips 21 are arranged on the outer skin of the power line 2 in a protruding manner;

The discontinuity strip 21 is axially disposed along the power line 2 and is disposed in a discontinuous shape.

In practical application, five uniformly distributed intermittent strips 21 are arranged on the outer skin of each power line 2 in a protruding mode, wherein the lengths of the empty sections of the intermittent strips 21 are twenty percent of the total length, and the empty sections of each intermittent strip 21 are uniformly distributed in an alternating mode along the axial direction; the power line 2 is fixed in the four liquid inlet cavities 12, the power line 2 is prevented from moving in the liquid inlet cavities 12, the power line 2 is prevented from being attached to the inner surface of the liquid inlet cavities 12, cooling liquid can circulate in all corners in the liquid inlet cavities 12, and the outer surface of the power line 1 is fully contacted with the cooling liquid.

Example 5

Embodiment 5, which is a preferred embodiment of the present utility model, has a specific structure as shown in fig. 1-2, and the following modifications are disclosed on the basis of embodiment 1: an insulating layer 5 and an outer protective layer 6 are arranged on the outer side of the supporting tube 4; and a support section 7 which is spirally wound is arranged at one end, close to the charging gun, of the outer side of the outer protective layer 6.

A section of spiral winding type protective sleeve 7 is arranged at the position of the outer side of the outer protective layer 6 where the support section 7 is not arranged;

the protective sleeve 7 can move outside the charging cable outer protective layer 6.

The theory of operation, in practical application, the one end that is close to the rifle that charges is provided with one section support section 7 in the outer side of outer sheath 6, and support section 7 is the flexible metal material winding that the cross section was rectangle and forms in the outer side of outer sheath 6, can carry out the key protection to the one section charging cable that is close to the rifle one end and often uses and buckle.

In practical application, the protective sleeve 7 is spirally wound by a flexible metal material, and when a larger gap exists between the protective sleeve 7 and the outer protective layer 6, the protective sleeve 7 can automatically move to the outermost side of the lower section of the charging cable along with gravity, so that the part which is in contact with the ground and easy to wear is protected; in practical application, when the protective sleeve 7 and the outer protective layer 6 are tightly matched, the protective sleeve 7 can be manually moved to a proper position according to the practical situation after the charging cable is installed, so that the protective sleeve 7 can protect the part contacted with the ground or other parts easy to wear.

The above embodiments are merely illustrative of a preferred embodiment, but are not limited thereto. In practicing the present utility model, appropriate substitutions and/or modifications may be made according to the needs of the user.

The number of equipment and the scale of processing described herein are intended to simplify the description of the present utility model. Applications, modifications and variations of the present utility model will be readily apparent to those skilled in the art.

Although embodiments of the utility model have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present utility model. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. A liquid cooled charging cable comprising a power line, a signal line, characterized in that it further comprises: the support tube is arranged in the positioning core inside the support tube;

The power line is arranged in the liquid inlet cavity;

2. The liquid cooled charging cable of claim 1, wherein each separator strip is internally provided with a wire rope near one end of the liquid outlet chamber.

3. The liquid cooled charging cable of claim 1, wherein the support tube inner wall is provided with a locating bar at a contact with the separator bar;

4. The liquid cooled charging cable of claim 1, wherein a plurality of intermittent strips are provided on the power wire sheath in a protruding manner;

5. The liquid cooled charging cable of claim 1, wherein an insulating layer and an outer jacket are disposed outside the support tube; and a support section spirally wound is arranged at one end, close to the charging gun, of the outer side of the outer protective layer.

6. The liquid cooled charging cable of claim 5, wherein a helically wound protective sheath is disposed at a location outside of the outer jacket where there is no support section;