How is Snap in aluminum electrolytic capacitor designed for explosion-proof?

Capacitors have a wide range of applications in the electronics industry, among which Snap in aluminum electrolytic capacitors and Snap in electrolytic capacitors are two types. For these two types of capacitors, explosion-proof design is an important technical requirement. The following will introduce the explosion-proof design of these two types of capacitors separately.

1、 Snap in aluminum electrolytic capacitors

Snap in aluminum electrolytic capacitors are capacitors with long lifespan and high reliability. In terms of explosion prevention, their design focuses mainly on preventing electrolyte leakage, short circuits, and overheating.

1.1 Leak prevention design

Snap in aluminum electrolytic capacitors adopt a special sealing structure, which can effectively prevent electrolyte leakage. This sealing structure consists of rubber rings, sealing rings, and sealing grooves. When the capacitor is working, the sealing ring fits tightly with the sealing ring to prevent electrolyte leakage. Even under high temperature or overpressure conditions, this sealing structure can still ensure the sealing of the electrolyte, thereby preventing accidents such as explosions and fires caused by electrolyte leakage.

1.2 Anti short circuit design

Short circuit is another cause of capacitor explosion. To prevent short circuits, Snap in aluminum electrolytic capacitors are designed with explosion-proof membranes and safety valves. When the internal pressure of the capacitor is too high, the explosion-proof membrane and safety valve can automatically rupture, thereby preventing further pressure increase. Meanwhile, these components can also prevent the electrolyte inside the capacitor from connecting to the external circuit, thereby avoiding the occurrence of short circuits.

1.3 Anti overheating design

Overheating is also an important factor leading to capacitor explosions. To prevent overheating, Snap in aluminum electrolytic capacitors are designed with thermistors. Thermistors can monitor the temperature on the surface of capacitors in real time. When the temperature exceeds a certain threshold, they will automatically cut off the power supply, thereby preventing overheating. At the same time, the capacitor casing also adopts the design of heat dissipation fins, which can effectively conduct the internal heat to the outside, avoiding accidents such as explosions and fires caused by overheating.

2、 Snap in electrolytic capacitors

Snap in electrolytic capacitors are capacitors with high capacity, low impedance, and explosion-proof characteristics. Their explosion-proof design is mainly reflected in the internal explosion-proof system and external protective measures.

2.1 Explosion proof system

The explosion-proof system inside Snap in electrolytic capacitors mainly consists of explosion-proof plates, explosion-proof rods, and wiring terminals. When the pressure inside the capacitor exceeds a certain threshold, the explosion-proof plate will rupture and the explosion-proof rod will pop out, thereby reducing the internal pressure. At this time, the wiring terminals will also automatically separate, cutting off the power supply, further preventing the occurrence of overvoltage and overcurrent. This explosion-proof system can effectively prevent accidents such as explosions and fires caused by excessive internal pressure.

2.2 External protective measures

In addition to the internal explosion-proof system, Snap in electrolytic capacitors also adopt various external protective measures. For example, the casing is made of high temperature resistant and flame-retardant materials, which can effectively prevent the impact of high temperature and fire on the capacitor; The terminal adopts a double screw fixing design, which can prevent the terminal from falling off and loosening; The lead out terminal adopts a dust-proof cover design, which can prevent dust and foreign objects from entering the inside of the capacitor; The shell is also equipped with a safety valve and explosion-proof plate structure. When the internal pressure exceeds a certain value, the safety valve or explosion-proof plate can be automatically opened to prevent explosion. These external protective measures can effectively protect the safety of the capacitor itself and the entire circuit system.

In summary, Snap in aluminum electrolytic capacitors and Snap in electrolytic capacitors have adopted various measures in explosion-proof design to ensure their safety and reliability. These measures mainly include the design to prevent electrolyte leakage, short circuit, and overheating, as well as the use of high reliability components. By implementing these measures, the occurrence of unsafe accidents such as capacitor explosions can be effectively avoided, thereby ensuring the long-term stable operation of electronic devices.