CN217506991U

CN217506991U - High-power direct current fills electric pile cable for liquid-cooled new energy automobile

Info

Publication number: CN217506991U
Application number: CN202220485046.7U
Authority: CN
Inventors: 陈建义; 陈伟; 迟先吉; 常尚国; 程旭阳; 冯政浩
Original assignee: SHANGHAI PUDONG WIRE AND CABLE (GROUP) CO Ltd
Current assignee: SHANGHAI PUDONG WIRE AND CABLE (GROUP) CO Ltd
Priority date: 2021-12-31
Filing date: 2022-03-04
Publication date: 2022-09-27
Anticipated expiration: 2032-03-04

Abstract

The utility model relates to a technical field of cable especially relates to a liquid cooling type high-power direct current fills electric pile cable for new energy automobile, including cable core and outer jacket, the crowded package of outer jacket is outside the cable core. The cable core includes the main line core, control core, signal sinle silk, the compound pipe of liquid cooling, temperature measurement sinle silk and earth core, and two compound pipes of liquid cooling set up in the clearance of two main line cores and strand the stranding with the main line core and with main line core in close contact with. The temperature measurement sinle silk sets up between main sinle silk and liquid cooling composite pipe. The control wire core, the signal wire core and the ground wire core are respectively abutted against the outside of the twisted main wire core and the liquid cooling composite pipe. The cable core is filled with a filling material for heat exchange. The control wire core is formed by twisting two control wires, and the signal wire core is formed by twisting two signal wires. When the temperature measuring device is used, the heating condition of the cable can be measured through the temperature measuring line, and the temperature of the cable is reduced in a forced cooling mode of the liquid cooling composite pipe, so that high-power supply is guaranteed.

Description

High-power direct current fills electric pile cable for liquid-cooled new energy automobile

Technical Field

The utility model relates to a technical field of cable especially relates to a liquid cooling type new energy automobile is with high-power direct current fill electric pile cable.

Background

After years of cultivation, the global new energy automobile industry enters a rapid development stage, and main automobile enterprises are turned to active and strategic investment from past prospect and careful investment. In 2019, the major automobile producing and selling countries continue to promote the automobile industry to change to electromotion, automobile enterprises also continuously release and deeply implement electromotion strategies, research and development of new energy automobile products are accelerated, and the global new energy automobile market is steadily increased. In 2019, the global new energy automobile sales volume reaches 228.4 thousands, the year-on-year increase is 4.5%, and the accumulated sales volume exceeds 770 thousands; the sales volume accounts for the steady increase of the proportion of the whole automobile market in the current year, and is increased from less than 0.1% in 2010 to 2.5% in 2019. Because the automobile ownership is increasing constantly, the charging problem of new energy automobile is more and more outstanding, and the user wants to finish charging with as little time as possible, and electric automobile charging mode at present falls into two kinds, and one kind is quick charging mode, and the other kind is slow charging mode. The current of slow charging is smaller, the charging time is longer, and the charging is performed in 6-8 hours at least in the most conventional charging mode; the quick charging can quickly supplement the battery pack in a short time.

The quick charging is high-power direct current charging generally, and 80% of capacity of the battery can be fully charged in half an hour. The high-power supply is adopted for quick charging, so that the cable can be quickly overheated in the using process, and the cable can be aged or punctured if heat cannot be discharged in time. The usual solution is to increase the nominal cross-section of the conductor, which not only increases the cost of the cable, but also causes inconvenience to the user.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a high-power dc charging pile cable for a liquid-cooled new energy vehicle, which can perform forced cooling through intelligent cooling and ensure high-power supply, in order to solve the above technical problems.

A high-power direct-current charging pile cable for a liquid-cooled new energy automobile comprises a cable core and an outer protective layer, wherein the outer protective layer is extruded outside the cable core; the cable core comprises a main wire core, a control wire core, a signal wire core, liquid cooling composite pipes, a temperature measurement wire core and a ground wire core, wherein the two liquid cooling composite pipes are arranged in a gap between the two main wire cores, are stranded with the main wire cores to form a cable and are in close contact with the main wire cores; the temperature measuring wire core is arranged between the main wire core and the liquid cooling composite pipe; the control wire core, the signal wire core and the ground wire core are respectively abutted against the outer sides of the twisted main wire core and the liquid cooling composite pipe; the cable core is filled with a filling material for heat exchange; the control wire core is formed by twisting two control wires, and the signal wire core is formed by twisting two signal wires.

Furthermore, the liquid cooling composite pipe is composed of a metal hose and a protective layer, and the protective layer is formed by extruding and wrapping an elastomer and silicon rubber.

Furthermore, one or two temperature measurement wire cores are arranged between the main wire core and the liquid cooling composite pipe.

Furthermore, the filling material is internally soaked with high-heat-conductivity ointment.

Furthermore, the temperature measuring wire core is formed by twisting a temperature measuring wire, a reinforcing core and a temperature sensing element.

Further, the outer protection layer is made of thermoplastic elastomer materials.

Furthermore, the main wire core is composed of a tinned soft copper wire and an insulated thermoplastic elastomer or silicon rubber extruded outside the tinned soft copper wire.

Furthermore, the control wire core and the signal wire core respectively adopt shielding structures.

Above-mentioned high-power direct current fills electric pile cable for liquid-cooled new energy automobile sets up two liquid cooling composite pipe in the clearance between two main core, and it has the liquid refrigerant to fill in the liquid cooling composite pipe to be furnished with the temperature measurement sinle silk and establish the control point to the cable and carry out the temperature measurement, take relevant cooling measure through the measuring result. In addition, the filling material filled in the cable core improves the heat exchange between the main cable core and the liquid cooling composite pipe, so that the heat can be conducted in time; the thermoplastic elastomer material is extruded outside the finished cable, so that the stability of the cable is improved, and high-power supply is ensured.

Drawings

Fig. 1 is a schematic structural diagram of a cable of a high-power dc charging pile for a liquid-cooled new energy vehicle according to an embodiment;

fig. 2 is a schematic view of a cross-sectional structure of a temperature measuring line in this embodiment.

In the figure: 100. a main wire core; 200. a control wire core; 300. liquid cooling of the composite pipe; 310. a metal flexible tube; 320. a protective layer; 400. a signal wire core; 500. a ground wire core; 600. a temperature measuring wire core; 610. a temperature measuring line; 620. a reinforcement core; 630. a temperature sensing element; 640. a temperature measuring wire outer sheath; 700. a filler material; 800. an outer jacket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1, in one embodiment, a high-power dc charging pile cable for a liquid-cooled new energy automobile includes a cable core and an outer sheath 800, the outer sheath 800 is extruded outside the cable core, the cable core includes a main core 100, a control core 200, a signal core 400, a liquid-cooled composite tube 300, a temperature measurement core 600 and a ground core 500, the main core 100 is made of a tinned soft copper wire and insulated by a thermoplastic elastomer or silicone rubber, and the two control cores 200 and the two signal cores 400 are respectively twisted into a cable and adopt a shielding structure. The two liquid cooling composite pipes 300 are placed in the gap between the two main wire cores 100 and are twisted with the main wire cores 100 to form a cable, so that the liquid cooling composite pipes are ensured to be in close contact with the main wire cores 100. The liquid cooling composite pipe 300 is composed of a metal hose 310 and an outer protective layer 320, wherein the protective layer 320 is formed by extruding and wrapping an elastomer and silicon rubber. The temperature measurement wire core 600 is placed between the main wire core 100 and the liquid cooling composite pipe 300, and two or one temperature measurement wire core 600 can be optionally placed; the number of the ground wire cores 500 is two, so that the outer diameter of the cable is reduced and the cable is more compact; the filling material 700 is filled in the middle of the cable core, and the high-heat-conductivity factice is soaked in the filling material 700, so that the heat exchange between the main cable core 100 and the liquid-cooled composite pipe 300 is improved, and the heat can be conducted in time; the outer cable is extruded with a thermoplastic elastomer material to form an elastomer outer sheath 800, so that the cable is softer, wear-resistant, low-temperature resistant, aging-resistant and the like.

In this embodiment, the liquid-cooled composite pipe 300 is a flexible hose made of a heat conductive material such as copper alloy or stainless steel, the hose is externally extruded with a thermoplastic or thermosetting elastic material as a protective layer 320, and the hose is filled with a special cooling liquid, so that the main insulation can be cooled by circulation.

As shown in fig. 2, in the present embodiment, the temperature measuring wire core 600 is composed of a temperature measuring wire 610, a reinforcing core 620 and a temperature sensing element 630, and is covered by a temperature measuring wire outer sheath 640; the temperature sensing element 630 may be provided with a plurality of temperature sensing elements 630 according to the temperature measurement requirement. The temperature measuring line 610 can measure the temperature of the designated area of the cable through the temperature sensing element 630, and control the cooling of the cable.

According to the high-power direct-current charging pile cable for the liquid-cooled new energy automobile, the two liquid-cooled composite pipes 300 are made of copper alloy or stainless steel and other metals in a projected mode to form a hose, the heat-resistant elastomer protective layer 320 is coated outside the hose, special cooling liquid is filled in the liquid-cooled composite pipes 300, and the purpose of cooling is achieved by circularly taking away heat. Temperature measurement sinle silk 600 is added simultaneously to the cable, and temperature-sensing element 630 among the temperature measurement sinle silk 600 can set up a plurality ofly according to the customer requirement, carries out the temperature measurement to different positions, has the adjustment liquid cooling rate of cooling according to the temperature measurement value. The filling material 700 in the cable core is soaked in the high thermal conductive ointment, so that the heat exchange between the main cable core 100 and the liquid cooling composite pipe 300 is improved. The cable is simultaneously provided with the control wire core 200 and the communication wire core to realize the cable charging control function. Two liquid cooling composite pipes 300 are arranged in a gap between two main wire cores 100, liquid cooling agents are filled in the liquid cooling composite pipes 300, temperature measurement wires 600 are matched for measuring the temperature of a cable closing control point, relevant cooling measures are taken according to measurement results, meanwhile, high-heat-conductivity factice is soaked in filling materials 700, heat exchange between the main wire cores 100 and the liquid cooling composite pipes 300 is improved, the temperature of the cable during operation can be effectively reduced, the current carrying capacity of the cable is increased, and the current carrying capacity is more than 3 times of that of a common charging pile cable.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The high-power direct-current charging pile cable for the liquid-cooled new energy automobile is characterized by comprising a cable core and an outer protective layer, wherein the outer protective layer is extruded outside the cable core; the cable core comprises a main wire core, a control wire core, a signal wire core, liquid cooling composite pipes, a temperature measurement wire core and a ground wire core, wherein the two liquid cooling composite pipes are arranged in a gap between the two main wire cores, are stranded with the main wire cores to form a cable and are in close contact with the main wire cores; the temperature measuring wire core is arranged between the main wire core and the liquid cooling composite pipe; the control wire core, the signal wire core and the ground wire core are respectively abutted against the outer sides of the twisted main wire core and the liquid cooling composite pipe; the cable core is filled with a filling material for heat exchange; the control wire core is formed by twisting two control wires, and the signal wire core is formed by twisting two signal wires.

2. The high-power direct-current charging pile cable for the liquid-cooled new energy automobile is characterized in that the liquid-cooled composite pipe is composed of a metal hose and a protective layer, and the protective layer is formed by extruding and wrapping an elastomer and silicon rubber.

3. The high-power direct-current charging pile cable for the liquid-cooled new energy automobile as claimed in claim 1, wherein one or two temperature measuring wire cores are arranged between the main wire core and the liquid-cooled composite tube.

4. The high-power direct-current charging pile cable for the liquid-cooled new energy automobile is characterized in that the filling material is soaked with high-thermal-conductivity factice.

5. The high-power direct-current charging pile cable for the liquid-cooled new energy automobile is characterized in that the temperature measuring wire core is formed by twisting a temperature measuring wire, a reinforcing core and a temperature sensing element.

6. The high-power direct-current charging pile cable for the liquid-cooled new energy automobile is characterized in that the outer protective layer is made of a thermoplastic elastomer material.

7. The liquid-cooled high-power direct-current charging pile cable for the new energy automobile is characterized in that the main wire core is composed of a tinned soft copper wire and an insulated thermoplastic elastomer or silicon rubber extruded outside the tinned soft copper wire.

8. The high-power direct-current charging pile cable for the liquid-cooled new energy automobile is characterized in that the control wire core and the signal wire core are respectively of a shielding structure.