A square aluminum electrolytic capacitor

Abstract

The invention discloses a square aluminum electrolytic capacitor, which comprises a core cladding and a shell, wherein the shell accommodates the core cladding via a sealing connection assembly; the sealing connection assembly comprises two connectors with I-shaped cross sections, a stainless steel plate, rubber rings, a positive electrode lead wire and a negative electrode lead wire; the positive electrode connection sheet and the negative electrode connection sheet of the core cladding are connected with the positive electrode lead wire and the negative electrode lead wire via the connectors respectively; the connectors are fixedly connected onto the stainless steel plate via the rubber rings; and the stainless steel plate and the shell are in sealed connection. The core cladding is packaged in the shell via the stainless steel plate, the cooling effects are good, and the operation is easy. The positive electrode connection sheet and the negative electrode connection sheet are connected with the connectors via the connection rings, the positive electrode lead wire and the negative electrode lead wire are connected with the connectors through butt joint, each connection point is stable, and thus the stability of the square aluminum electrolytic capacitor is enhanced. As the stainless steel plate is in sealed connection with the connectors through squeezing the rubber rings, the structure is simple, and the sealing effects are good.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a square aluminum electrolytic capacitor. Background technique [0002] Large aluminum electrolytic capacitors generally include a core package, a case, a cover plate, and lead-out electrodes. Among them, the core pack includes an inner core, which is formed by wrapping positive and negative electrolytic aluminum foils, electrolyte and electrolytic paper. The core occupies most of the volume of the entire large aluminum electrolytic capacitor product, and its weight is also the heaviest part of the entire large aluminum electrolytic capacitor. It is bulky and heavy, so its fixed packaging in the whole large aluminum electrolytic capacitor becomes a huge problem. At present, gel or asphalt is generally used to package and fix large aluminum electrolytic capacitors. However, the use of gel or asphalt to package and fix large aluminum electrolytic capacitors increases the amount of com...

AI Technical Summary

Problems solved by technology

However, the use of gel or asphalt to package and fix large aluminum electrolytic capacitors increases the amount of combustible organic matter, which increases the risk of aluminum electrolytic capacitors; increase in size

Moreover, the filling amount of gel or asphalt is not easy to control, and both of them are filled with high-temperature melting, which has certain dangers

The use of gel or asphalt can also easily lead to low thermal conductivity of large aluminum electrolytic capacitors, making the core heat dissipation of large aluminum electrolytic capacitors poor, which in turn affects the life of large aluminum electrolytic capacitors

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