一本无码中文字幕在线观,在线精品视频一区二区三区,国模精品一区二区三区,妖精色av无码国产在线看

Welcome: Luoyang Zhengqi Machinery Co.,Ltd
Language: Chinese  English

Hydraulic Cooled Cables for High Power Charging Piles

Specification of national standard liquid cooled charging gun

國標(biāo)液冷充電槍規(guī)格書

GB20234.3-2015 Standard liquid cooled charging gun system

Luoyang zhengqi machinery co.ltd

June 2019


1. Introduction

New energy electric vehicles have no exhaust emissions, environmental protection, alternative fuel cars are an inevitable trend. At present, the two main factors affecting the development of new energy electric vehicles are: battery range and charging time. With the development of power batteries and continuous breakthroughs in technology, the range of new-energy electric vehicles has been increased from 150km to 400km, and the problem of short range has been basically solved. However, the problem of charging time has not been solved.

At present, the standard dry integrated cable diameter of gb20234.3-2015 standard charging gun is less than 40mm, the cross-sectional area of the soft conductor DC+ and DC- is 70mm2, and its nominal maximum current capacity is 250A. The fact is that the current index carrying 250A cannot be reached. According to the feedback from the market, the safe current carrying capacity in the actual use is 180A. Since the heat generated by the soft wire of the dry cable during charging cannot dissipate well, it cannot carry large current. If the current of 200A is carried continuously, the temperature will be too high, which will cause the high temperature alarm of the charging pile control system to fail to work normally.
If we want to promote and develop new energy electric vehicles, we must solve the problem of rapid charging. To solve the problem of quick charging, it is necessary to use high power dc charging pile. At present, the domestic design of high-power dc charging pile, its power between 300kw and 500kw, output dc current between 300kw and 500A. High power dc charging pile is composed of power supply, charging gun, liquid cooling cable connecting charging pile power supply and charging gun.
High power dc charging pile is equipped with liquid cooling cable. It is an integrated cable with an outside diameter of 39mm, which conforms to human body engineering and is convenient to use. It contains one liquid-cooled cable DC+ and DC-, as well as several signal lines. The structure of DC+ and dc-liquid-cooled cables is the same. One end of the cables is an electrode, which is connected to the high-power DC charging pile power supply. The other end is the terminal of the liquid-cooled charging gun. The internal terminal of DC+ and DC- of the liquid-cooled charging gun is a cavity structure, which is sealed and connected with the liquid-cooled cable.
The coolant is 45# transformer oil. It will not freeze at minus 45℃, its ignition point is 146℃, insulation, heat conduction effect is good. Inside the liquid-cooled cable, through the circulating cooling fluid, coolant through the surface of the cable conductor software, directly to the charging gun DC +, DC - terminal at the bottom of the cavity, the charging gun DC + software, the terminal of the DC - and cools cable conductor for cooling, take charge of circulating coolant gun DC + software, the terminal of the DC - and cools cable wire heat produced in the process of charging, cooling fluid return to recycle cooling system after cooling. Ensure that the terminals of the charging gun DC+, DC- and the soft wire of the liquid-cooled cable work safely and reliably during the charging process, without causing accidents due to excessive temperature.
Liquid-cooled cable charging gun system, based on GB20234.3-2015 standard, on the basis of the gun, charging cable adopts the technology of the surface after cooling, the charging current by nominal 250 a, can actually the ascent to 500 a, and can be safety to work for a long time, its performance, can effectively shorten the charging time, solve the problem of new energy electric vehicle charging time long.

2. High-power national standard liquid-cooled charging system
2.1 composition of high-power national standard liquid-cooled charging system
The composition of high-power liquid-cooled charging system is shown in the following table:
List of composition of high power liquid-cooled charging system
System name system composition notes
High power liquid cooled charging system liquid cooled charging gun conforms to gb20234.3-2015
Liquid-cooled cable matches gb20234.3-2015 charging gun
Liquid cooled source oil pump
The fuel tank
The radiator
Cooling fluid 45# transformer oil (-45 ° will not freeze)
2.2 performance indexes of high-power national standard liquid cooling system
Serial number performance index parameter value
1 electrical
1.1 rated voltage 1000V DC
1.2 rated current 400A
1.3 rated power 400KW
1.4 withstand voltage 3000V AC, between power hole position and signal hole position
Between 500V AC signal holes
1.5 500 m Ω insulation resistance (500 v DC)
2 mechanical properties
2.1 mechanical life of 10,000 times
2.2 locking force 200N
3 environmental performance
3.1 the ambient temperature is -30 ~ 50℃
3.2 operating temperature -30 ~ 90℃
3.3 surface temperature contact parts ≤90℃ (actual test ≤55℃)
Holding position ≤55℃
3.4 protection level plug and dust cover: IP54
Plug and socket: IP55
Liquid cooled cable
4.1 the maximum length is 10m
4.2 outer diameter of cable 39mm
4.3 power line specification: 35mm squared
5 cooling circuit
5.1 coolant 45# transformer oil (no icing at minus 45℃)
5.2 into the liquid/diameter 8 / ф ф 6 pipe diameter
5.3 into the liquid/diameter 8 / ф ф 6 pipe diameter
5.4 the electrode (terminal) connected with the power supply of the charging pile has two structures for users to choose from. Special liquid cooling terminal
5.5 each special liquid cooling terminal of the cooling circuit is provided with an inlet port and an outlet port at the same time. DC+ and DC- constitute separate cooling circuit without interference
The 6 cools the source
6.1 rated voltage 220V AC
6.2 rated power: 550W
6.3 working pressure: 10bar
6.4 traffic 8 l/min
6.5 cooling fan power: 90W
6.6 noise ≤60 db
6.7 functional coolant pressure monitoring, coolant flow monitoring, coolant temperature monitoring; Low pressure alarm, over voltage alarm, cut-off alarm, coolant temperature is too high alarm
6.8 size (length * width * height) 550mm*200mm*600mm
6.9 communication interface with charging pile RS485
The special liquid-cooled electrode (terminal) connected with the power supply of the charging pile has two structures for users to choose:

NO1



NO2:


CONTACT US

Contact: ChongQing Zang

Phone: 13938896088

Tel: (0379) 62267825

Email: zhengqijixie@126.com

Add: Shuikou Village North, Mangshan Town, Laocheng District, Luoyang City

久久精品人人做人人爽97| 三级成人午夜电影网在线网页| 人妻 丝袜美腿 中文字幕| 伊人久久精品无码AV一区| 精品国产精品久久一区免费式| 午夜性爽视频男人的天堂| 日本午夜免费福利视频| 成人A毛片免费全部播放| 92精品国产自产在线观看481页| 免费A级毛片无码免费视| 国产日产欧产美韩系列麻豆| 一二三四视频免费观看中文版| 国产成人18黄网站在线观看| 免费极品av一视觉盛宴| 午夜精品久久久久久毛片| 亚洲日本高清一区二区三区| 领导边摸边吃奶边做爽在线观看| 亚洲成a人v欧美综合天堂下载| 亚洲精品欧美二区三区中文字幕| 久久久久亚洲av无码观看| 狠狠色噜噜狠狠色综合久| 激情内射亚洲一区二区三区爱妻| 精品少妇人妻AV无码久久| 2021久久天天躁狠狠躁夜夜| 婷婷亚洲久悠悠色悠在线播放| 国内精品久久久久久久999| 丰满少妇偷人51视频在线观看| 久久狠狠爱亚洲综合影院| 无遮挡男女激烈动态图| 亚洲AV无码一区二区三区鸳鸯影院| 精品国产一区AV天美传媒| 亚洲高清无码视频网站在线| 久9视频这里只有精品8| 亚欧乱色国产精品免费视频| 亚欧成人无码AV在线播放| 久久久久精品国产四虎| 宅宅少妇无码| 综合AV人妻一区二区三区| 亚洲VA中文字幕无码毛片| 国产精成人品日日拍夜夜免费| 亚洲av人无码激艳猛片服务器|