What are the main aspects of EV plug safety?
What are the main aspects of the safety of new energy vehicle EV plugs?
Mechanical performance safety.
1. In terms of material selection, the new energy vehicle EV plug should have strict requirements for the plastic material of the plug body, which must have requirements for resistance to different environments such as high and low temperatures.
2. It is a requirement for cables, which not only limits the diameter and film thickness of the cable, but also undergoes tests such as high temperature resistance and aging resistance to ensure long-term use without oxidation.
3. Requirements for the overall structural design of the new energy vehicle EV plug. If the design is not reasonable, it may not have a direct impact in the short term. Once the environment is damaged by long-term wind, sunlight, and other factors, its brittleness will gradually become prominent. New energy vehicle charging plugs can easily fall to the ground, which can bring psychological fear to users, and even users may question the safety of all new energy vehicle charging plugs. The structural design of the new energy vehicle EV plug should strictly follow national standards, which is an important issue beyond the standards.
Electrical performance safety.
Safety issues need to be a key consideration in the design process of EV plugs. It should have protective devices such as overvoltage and undervoltage protection, lightning protection, output short circuit protection, leakage protection, and overcurrent protection, and there should be a leakage protector inside. If leakage occurs during standby or charging, it will trip in a timely manner. To protect the personal safety of users, the design of charging plugs should also consider the impact of environmental factors. The environment in which EV plugs are used may involve lighting, wind and rain, gasoline exposure, fire risk, severe cold, etc. It is necessary to undergo professional three prevention design, anti-corrosion design, and other protective measures to improve the environmental reliability of the product and ensure the durability and durability of the equipment. Only under these conditions can the charging plug maintain its lifespan and maintain good performance, in order to ensure the safety of use. The design of the handle of the charging plug should comply with ergonomics.
Mainly reflected in the reliability of the metal terminals inside the EV plug of new energy vehicles. The reliability of the terminals directly determines the tightness of the charging interface. Tightness has two direct impacts. One is that the new energy vehicle EV plug will experience temperature rise during the connection process, causing cable heating and posing an unsafe hazard; The second is reflected in the tightness of the terminal coating. If the tightness design is not reasonable, the interface may be too loose or too tight when plugging in and out the EV plug. If the coating is not properly treated, it is easy to oxidize and wear, directly affecting the effectiveness of the new energy vehicle EV plug and the safety of the entire charging process.