With the rapid development of technology, the future of the automotive industry is clearly heading toward new energy vehicles and self-driving cars. As these innovations take center stage, charging stations—often referred to as the “power providers†for electric vehicles—have become an essential part of this transformation. As a critical infrastructure component for the electric vehicle industry, charging piles are now receiving significant attention from both central and local governments. In this article, we will explore what a charging pile is, how it works, and what the future holds for this growing sector.
On November 7, 2016, the National Development and Reform Commission and the National Energy Administration officially released the “13th Five-Year Plan for Power Development,†emphasizing the need to accelerate the construction of charging facilities to support the growth of electric vehicles. By 2020, the plan aimed to have over 12,000 power station replacements and more than 4.8 million distributed charging piles in place. The goal was to establish a moderately advanced, intelligent, and efficient charging infrastructure system that could meet the needs of over 5 million electric vehicles nationwide. Experts predict that by 2030, the number of new energy vehicles could reach 50 million, requiring even more charging infrastructure. Specifically, by 2020, 20,000 charging stations and 5.07 million charging piles were expected, while by 2030, 140,000 charging stations and 50 million charging piles would be needed. Major cities like Beijing, Shanghai, and Shenzhen have also aligned with national policies, implementing their own plans to build comprehensive charging networks.
In August 2017, several provincial departments in Anhui issued the “Notice on the Construction Plan for Electric Vehicle Charging Infrastructure in Anhui Province (2017–2020).†This document outlined the need for 200 special charging and replacement stations for buses, sanitation, and logistics, along with 100 special charging stations, 130 urban public charging stations, 30,000 decentralized public charging piles, and 150,000 private charging piles by 2020. These efforts aim to meet the growing demand for electric vehicles across the province.
As government support continues to grow, the charging pile industry is expanding rapidly. However, many consumers still find charging piles unfamiliar, and there is a lack of detailed information available. This article aims to provide a clearer understanding of the different types of charging piles and how they function, especially focusing on DC charging piles.
Charging piles can be broadly classified into two types: AC charging piles and DC charging piles. AC charging piles, often referred to as “slow chargers,†rely on the onboard charger (OBC) of the electric vehicle to convert alternating current from the grid into direct current. The output power varies, typically ranging from 3.3 kW to 6.6 kW. On the other hand, DC charging piles, or “fast chargers,†are equipped with internal DC charging modules that convert AC to DC directly, allowing for much higher output currents—up to 100A or more. This makes them ideal for quick charging.
DC charging piles can be further categorized based on factors such as power capacity, number of charging guns, and structural design. The most common classification is between integrated and split-type DC charging piles.
The basic working principle of a DC charging pile involves several key components: the power unit, control unit, metering unit, charging interface, power supply interface, and human-machine interaction interface. The power unit, typically a DC charging module, provides the necessary DC power, while the control unit manages the charging process. The controller sends commands such as “start,†“stop,†“output voltage,†and “output current†to the charging module. The human-machine interface allows users to interact with the system, making the charging process user-friendly.
The electrical system of a DC charging pile includes both a main circuit and a secondary circuit. The main circuit handles the input and output of power, while the secondary circuit includes the controller, card reader,
Display Screen, and other components responsible for monitoring and controlling the charging process. Safety measures such as air switches, lightning protection, and insulation testing are also crucial to ensure reliable and safe operation.
Looking ahead, the technical development of DC charging piles is moving toward several key trends. These include ultra-high power charging, dynamic power distribution, smart charging in community parking lots, household wall-mounted charging solutions, and the integration of charging with energy storage systems. Additionally, shared and free charging models are emerging, driven by the Internet and the concept of sharing economy.
As the market for electric vehicles continues to grow, so too will the demand for efficient, safe, and convenient charging solutions. Whether through high-power fast charging, smart home integration, or shared charging networks, the future of electric vehicle charging is bright and full of potential.
LCD Screen
brightness
LCD is a substance between solid and liquid. It can't emit light by itself, so it needs additional light source. Therefore, the number of lamps is related to the brightness of the Liquid Crystal Display. The earliest liquid crystal displays had only two upper and lower tubes, the lowest of the popular type was four lamps, and the high-end one was six lamps. The four-lamp design is divided into three types of placement: one is that there is a lamp on each of the four sides, but the disadvantage is that there will be dark shadows in the middle. The solution is to arrange the four lamps from top to bottom. The last one is the "U"-shaped placement form, which is actually two lamp tubes produced by two lamps in disguise. The six-lamp design actually uses three lamps. The manufacturer bends all three lamps into a "U" shape, and then places them in parallel to achieve the effect of six lamps.
Tip: Brightness is also a more important indicator. The brighter the LCD, the brighter the LCD, it will stand out from a row of LCD walls. The highlight technology we often see in CRT (ViewSonic is called highlight, Philips is called display Bright, BenQ is called Rui Cai) is to increase the current of the shadow mask tube to bombard the phosphor to produce a brighter effect. Such a technology is generally traded at the expense of image quality and the life of the display. All use this The products of this kind of technology are all bright in the default state, you always have to press a button to implement, press 3X bright to play the game; press again to turn to 5X bright to watch the video disc, a closer look is blurred, you need to watch The text has to be honestly returned to the normal text mode. This design actually prevents you from frequently highlighting. The principle of LCD display brightness is different from that of CRT. They are realized by the brightness of the backlight tube behind the panel. Therefore, the lamp has to be designed more so that the light will be uniform. In the early days when selling LCDs, it was a great thing to tell others that there were three LCDs. But at that time, Chi Mei CRV came up with a six-lamp technology. In fact, the three tubes were bent into a "U" shape. The so-called six; such a six-lamp design, plus the strong luminescence of the lamp itself, the panel is very bright, such a representative work is represented by VA712 in ViewSonic; but all bright panels will have a fatal injury , The screen will leak light, this term is rarely mentioned by ordinary people, the editor personally thinks it is very important, light leakage means that under a completely black screen, the liquid crystal is not black, but whitish and gray. Therefore, a good LCD should not emphasize brightness blindly, but more emphasis on contrast. ViewSonic's VP and VG series are products that do not emphasize brightness but contrast!
Lcd Display,LCD Screen,Lcd Tft Display Screen,4 Inch Mipi Lcd Screen,Square Tft Lcd Display
ESEN HK LIMITED , https://www.esenlcd.com