On March 7, 2023, the China Electric Vehicle Charging Infrastructure Promotion Alliance (hereinafter referred to as “China Charging Alliance”) and NASDAQ: NAAS released the “White Paper on Charging Behavior of Chinese Electric Vehicle Users in 2022".
The “White Paper” relies on the big data of NASDAQ: NAAS, through qualitative and quantitative analysis, objectively presents, insight, and judges the charging behavior characteristics and changing trends of electric vehicle users in China. The analysis results show that 72% of users prefer high-power charging piles of 120kw and above. The user's average single charging capacity is 25.6 degrees, the average single charging time is 49.3 minutes, the average single charging amount is 25 RMB, and the daily charging is 1.4 times. Due to its high charging efficiency, fast charging piles have become the first choice of 96% of users. The average single charging time of users using DC fast charging piles is 48.7 minutes, and the weekly charging frequency is as high as 4.51 times. In terms of charging station selection, charging stations with a certain scale and supporting service facilities have become the first choice of users, with a selection rate of 66.85%. China's charging infrastructure construction has made great progress. With the vigorous development of charging piles, the safety standards for electric vehicle charging interfaces have become more stringent.
The sealing accessories used for safety are mainly on high-voltage connectors, low-voltage connectors, charging interfaces and other devices. The main protection of the high-voltage connector is the seal of the sealing ring. The sealing ring is made of silicon rubber. The tail relies on the design of the sealing ring protrusion and the interference of the connector shell to produce a sealing effect. Creates a sealing effect. Low-voltage connectors are generally sealed with gaskets and wire plugs. The plug-in end is typically sealed with a sealing ring and the plug-in housing. The head is largely sealed between the cable and the housing hole by rubber wire plugging. Form a sealing effect. Judging from the actual use effect, both the high-voltage connector and the low-voltage connector can meet the protection level of IP67. The general protection design of the charging socket is divided into a metal socket with a waterproof sealing ring design, and a gasket at the end of the socket to form a sealing effect between the cable and the cable.
Sealing strips are mainly used in safety boxes and electronic locks that require space sealing. The material of the sealing strip is mainly ethylene propylene diene monomer (EPDM) and polyvinyl chloride (PVC), and the sealing strip is mainly divided into an integrated bulk type and a formed type.
For the safety of the charging port, the quality, and performance of the seal is extremely important. Linde is confident to provide you with high-quality, high-precision, high-performance, rubber seals.
