In dangerous working scenarios, such as petrochemical and coal mining, there are flammable and explosive gases or dust, which requires extremely high explosion-proof performance of industrial button batteries. Different dangerous working scenarios have different danger levels and environmental characteristics, and the corresponding explosion-proof standards are also different. For example, underground coal mine operations must follow the explosion-proof standards related to coal mine safety regulations, requiring batteries to have extremely high explosion-proof levels; while petrochemical sites must comply with the explosion-proof specifications of the chemical industry. Clarifying the specific explosion-proof requirements and standards of these scenarios is the basis for the design of industrial button battery explosion-proof structures. Only on this basis can we ensure that the designed batteries meet the safety requirements of actual applications.
The selection of explosion-proof materials is the key to the design of industrial button battery explosion-proof structures. The shell material must have good strength, sealing and corrosion resistance. Common explosion-proof shell materials include metal materials such as stainless steel and aluminum alloy, as well as high-strength engineering plastics. Metal materials have high strength and can effectively resist external impacts to prevent the battery shell from breaking and causing dangers; engineering plastics have the characteristics of light weight and good insulation performance, which are suitable for scenarios with special requirements for weight and insulation. In addition, the selection of sealing materials is also crucial. Sealing materials such as silicone rubber and fluororubber can effectively prevent flammable and explosive gases or dust from entering the battery, while ensuring that the gas inside the battery does not leak out, thereby avoiding the risk of explosion.
The shell structure design of industrial button battery directly affects its explosion-proof performance. When designing, a solid closed structure should be adopted to reduce the gaps and weak points of the shell. For example, a seamless welding process or high-precision threaded connection is used to ensure the sealing of the shell to prevent the entry of external hazardous substances and the leakage of internal gas. At the same time, the thickness and shape of the shell should be reasonably designed to enhance the pressure resistance of the shell so that it can withstand the pressure that may be generated inside without breaking. In addition, a pressure relief device can be set on the shell. When the internal pressure of the battery exceeds a certain threshold, the pressure relief device automatically opens to release the internal pressure to avoid pressure accumulation and explosion.
In dangerous operation scenarios, electrical sparks are one of the important factors that cause explosions, so industrial button batteries need to design effective electrical isolation and protection measures. The positive and negative pins of the battery are insulated, and the pins are wrapped with materials with good insulation properties to prevent the pins from contacting external conductors to generate sparks. At the same time, optimize the circuit layout inside the battery, reduce electrical connection points, and reduce the risk of short circuit. In addition, overcurrent and overvoltage protection circuits can be set. When the battery has abnormal current or voltage, the circuit is cut off in time to prevent electrical failure from causing explosion.
Battery overheating is a potential risk factor leading to explosion, especially in dangerous operation scenarios, temperature control is crucial. In the explosion-proof structure design of industrial button battery, temperature monitoring and overheating protection systems need to be integrated. The temperature of the battery is monitored in real time through the built-in temperature sensor. When the temperature exceeds the safety threshold, the system automatically starts overheating protection measures, such as reducing the output power of the battery, cutting off the circuit, etc., to prevent the battery from exploding due to overheating. At the same time, the temperature monitoring data is transmitted to the external device, so that the operator can grasp the temperature status of the battery in time and take corresponding measures to ensure safety.
Industrial button battery is usually installed in various industrial equipment for use, and its explosion-proof structure must be well compatible with the equipment. When designing, factors such as the installation space, interface form and working environment of the equipment should be fully considered to ensure that the explosion-proof structure of the battery will not affect the normal operation and installation and maintenance of the equipment. For example, for smaller industrial equipment, the explosion-proof structure of the battery should be compactly designed and not take up too much space; for equipment that requires frequent battery removal, an explosion-proof connection structure that is easy to remove and install should be designed, while ensuring the sealing and safety of the connection.
After the explosion-proof structure design and production are completed, the industrial button battery must undergo strict explosion-proof performance testing and certification to ensure its safety in dangerous operating scenarios. According to relevant explosion-proof standards and test specifications, the battery is subjected to a series of tests, such as strength test, sealing test, electrical safety test, temperature test, etc. of the explosion-proof housing. Only after passing all tests and obtaining corresponding explosion-proof certifications, such as domestic Ex certification and international ATEX certification, can the industrial button battery be put into use in dangerous operating scenarios. At the same time, the explosion-proof performance of the battery is regularly inspected and maintained to ensure that its explosion-proof performance is always in a reliable state.
