Mianzhu electric vehicle maintenance model
The function of the charging post is similar to that of the gas dispenser in the gas station. It can be fixed on the ground or wall, installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations, and can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected with the AC power grid, and the output end is equipped with a charging plug for charging the electric vehicle. Generally, the charging pile provides two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-computer interaction interface provided by the charging pile to print the corresponding charging method, charging time, cost data and other operations. The charging pile display screen can display the charging amount, cost, charging time and other data.
Mianzhu electric vehicle maintenance model
Functional features: 1. Provide human-computer interaction; Provide DC and AC charging interfaces; 2. With voice prompt function; With card swiping function; 3. It has the function of printing vouchers; 4. Real time communication with BMS to obtain information such as power battery type, unit voltage, residual capacity, temperature and alarm; 5. Generate control commands and switch signals to the charger, control the start and stop of the charger, and obtain the status information of the charger; 6. Complete safety protection control logic such as connection state judgment, interlocking, control guidance of charging interface; 7. With CAN2.0B and RS485 communication interfaces, it can communicate with centralized monitoring and submit charging status information; 8. It has the protection functions of electric leakage, short circuit, overvoltage, undervoltage, overcurrent, etc. to ensure the safe and reliable operation of the charging pile (plug); The protection grade is IP54.

Mianzhu electric vehicle maintenance model
Nezha Auto, whose products focus on middle and low-end models, delivered 10127 new cars in December, a year-on-year increase of 236%, with monthly sales exceeding 10000 yuan. In 2021, Nezha Auto delivered 69674 units, a sharp increase of 362% year on year. According to official data, in 2021, about 64% of Nezha's users will come from first tier, new first tier and second tier cities - which means that nearly 40% of Nezha's users will come from third tier, fourth tier and fifth tier cities, or sinking markets. In addition, it is worth noting that the high-end new energy sub brands of Landu Auto and Krypton, two traditional car companies, both exceeded 3000 vehicles in December. Although the number is not large, for a new brand that has only been established for a year or two and has only been delivered for a few months, the deeper meaning is to get through the process. The next step is to continue to expand production capacity and sales channels.

Mianzhu electric vehicle maintenance model
A foreign technology company has given a perfect solution: the solar cone they developed is composed of thousands of triangular solar panels. With a specially designed condenser and rotating cone, they can obtain 20 times more light than before, while maintaining the temperature of the core conversion components within a safe range, greatly improving the energy conversion efficiency. Industry insiders believe that this innovation has practical operational significance for photovoltaic power generation, but large-scale popularization still needs to consider the cost and further technical improvement. In order to popularize the application in any industry, it is essential to continuously reduce the cost. Photovoltaic power generation was once very expensive, but driven by economies of scale, the cost of photovoltaic power generation has been declining in recent years, and now it is very close to parity. All this depends on the continuous innovation of photovoltaic technology.

Mianzhu electric vehicle maintenance model
AC type: Technical requirements for AC charging pile (plug) 1. Requirements for environmental conditions: ① Working environment temperature: - 20 ℃~+50 ℃; ② Relative humidity: 5%~95%; ③ Altitude: ≤ 1000m; ④ Installation site: outdoor; ⑤ Seismic capacity: ground horizontal acceleration 0.3g; Ground vertical acceleration 0.15g; The equipment shall be able to withstand three continuous sine waves under simultaneous action, and the safety factor shall be greater than 1.67; 2. Structural requirements: ① The shell of AC charging pile (bolt) shall be firm; ② In structure, it is necessary to prevent hands from easily touching the exposed part; ③ The AC charging post (bolt) shall be a steel composite structure with a thickness of more than 1.0, and the surface shall be treated with plastic immersion, and the requirements for heat dissipation shall be fully considered. The charging pile (bolt) shall have good shielding function against electromagnetic interference; ④ The charging pile (bolt) shall have sufficient support strength;

Mianzhu electric vehicle maintenance model
Intelligent product: compared with traditional fuel vehicles, what is the core competitiveness of new energy vehicles? Intelligence seems to be the accepted answer. The reporter's visit found that more and more new energy vehicle enterprises have built a service system for the whole process of users' purchase and use of vehicles through the digital platform, and improved the digital life and after-sales service in the vehicle. From the perspective of configuration and performance, the new energy models of the three enterprises visited by the reporter have been able to achieve multiple functions such as car control, service and social networking with the help of the car machine system and APP, and the software upgrade and function iteration optimization can also be carried out after the car is sold, so as to realize the constant use and freshness of the car.