Hunan University of Technology
Wang Zeqi; Wei Zhiwen; Qian Qingyun

Advocate wall-hanging AC charging pile design background: based on the background of new energy structural transformation, 202020new energy charging pile was included in the new base bank column, China's charging pile industry ushered in rapid development. Driven by the rapid development of new energy vehicles and the strong support of national policies, the domestic charging pile industry has developed rapidly, charging piles and other infrastructure have been rapidly popularized, and the charging pile market has shown unprecedented prosperity. The strong demand in the charging pile market also provides a good development opportunity for industrial design companies. In this context, more and more industrial design companies enter the charging pile industry to provide high-quality charging pile design services for charging pile companies, and help companies to create products that are more in line with the market and user needs from the level of industrial design. Improve the market competitiveness of enterprises and win market opportunities. More and more excellent charging pile products have emerged in the market.
The current market "car and pile" ratio is still out of balance, the future charging pile industry still has optimistic development space. At the level of landing of charging piles, the delivery standards vary from place to place, mainly including "partial proportional installation in place", "partial proportional installation in distribution box or meter box", "reserved later installation conditions" and "design has not been considered yet".
Design Description: This is a wall-mounted AC charging pile designed for private car owners with expandable storage cables. In-depth thinking on user experience, functional innovation, product brand image, etc., breaking the rigid image of the existing charging pile, using the geometric design of the fuselage and the streamlined design of the handle. It has plug-and-play technology for automatic copyright identification and supports APP reservation charging. The status indicator makes the charging dynamic and intuitive. It can store the charging rope, which can better fit the car and make the operation easier. Using high strength PC + ABS material; 420mm * 200mm * 100mm,6.8KG,11KW 380V; There are 4 current modes that can be adjusted. There are two modes of use, one is swipe card mode and the other is APP mode. The charging speed is increased by about 1.5 times, and the charging time is shortened by about 36%; in the process of charging pile/gun design, we have fully studied GBT 20234-2011 and other series of national standards, and fully considered the installation position according to customer needs. The height, stress point, etc., the design of the handle is ergonomic, making the product more convenient and easy to operate; the safety of outdoor electricity is fully considered in the waterproof level, the design is strictly in accordance with the national standard protection level; the selection of materials can achieve high temperature resistance, low temperature resistance, can be rolled, and will not fade after 10 years of outdoor use; the appearance design is unique and innovative, fully considering the hand feeling, dynamic lines, and fashionable Color matching makes cold industrial products more humanized, and makes users operate more convenient and labor-saving. Core innovation points: Module design: card reader, communication, metering components, etc. are all modular design and flexible selection; Storage cable: the circular gun base is integrated into the main machine shape, and the charging cable can be surrounded on the body; Plug and play: automatically match the charging current, Bluetooth connection; Efficient charging; Grounding detection: intelligent detection of abnormal grounding reminder function, and upgrading of electricity protection;
Solve pain points: 1. The charging status is difficult to identify; 2. The operation service is complicated; 3. The cable is bulky; 4. The sanitary condition is poor; the key to the core technology: 1. New liquid cooling heat dissipation technology; through research suitable for charging gun interfaces and cable components The new liquid cooling heat dissipation technology and the optimized structure optimization design of the charging connection components based on the new liquid cooling heat dissipation technology solve the problem of fast charging, to solve the existing charging pile charging slow, low efficiency, charging gun with heavy cable, inconvenient for women, the elderly, weak people to use the problem. Submerged liquid cooling is another concept of heat dissipation compared to traditional cooling methods such as air cooling and water cooling.
Mo Jingjie, co-founder of Lanyang Technology, said that compared with air cooling and indirect liquid cooling technology that uses cooling plates, cooling pipes and other structures, immersion liquid cooling technology soaks all electronic components in special liquid materials for 100% contact and heat dissipation., The heat dissipation efficiency is higher, more stable and safer. The application of submerged liquid cooling technology in data centers will show more advantages. For example, by giving the theoretical working environment of electronic components to make electronic components play a greater performance; due to the complete isolation of air, the problem of oxidation of electronic components is solved, and the life of the equipment is improved; more space can be saved. 2. Large data set regulation and processing technology; apply large data set regulation and processing technology to carry out dynamic scheduling and make reasonable and appropriate planning. Divert the vehicle to other charging piles outside the highway, in the city or around it for charging. Analyze the business requests submitted by users to process the business quickly, accurately and efficiently. Through big data technology, real-time data analysis of various information about users' participation in charging services is carried out, from the "collector" of data to the "analyst", mining the potential needs of the public, and actively pushing the public with high relevance and timeliness Strong personalized information or services, thereby improving the ability and quality of charging pile services, and obtaining maximum user satisfaction. Now use big data technology to conduct information research and judgment on massive real charging data, identify and extract valuable hidden information from it, which can tap the public's usage habits and information acquisition needs, release information in a targeted manner, and use this information for the enterprise The formulation of major policies and regulations provides a basis for decision-making. 3. Intelligent charging and interactive response technology; mainly includes the applicable scenarios of intelligent charging and interactive response of intelligent charging piles, equipment electrical safety and information security, intelligent charging functions, pile networking interactive response requirements and platform interactive technical requirements, suitable for adjusting the need Intelligent AC charging piles and intelligent off-board chargers for the charging power of electric vehicle power supply equipment.
According to the charging behavior habits of most new energy car owners, they usually charge their vehicles after leaving work at night and returning to the residential area. The charging time is relatively concentrated in the peak period of electricity consumption at night, which coincides with the high load period of household electricity consumption. The charging cost and the load pressure of the power supply network are very large. Through the construction and transformation of intelligent charging facilities, new energy owners can be guided to adjust the charging time and power according to the charging cost and grid load. The charging experience is relatively high, and the power supply network