Solid aluminum electrolytic capacitor with high heat dissipation performance and preparation method of capacitor

Abstract

A solid-state aluminum electrolytic capacitor with high heat dissipation performance comprises a shell, a core cladding and a rubber plug, the core cladding is arranged in the shell in a sealed mode through the rubber plug, a plurality of heat dissipation holes are formed in the shell, and a waterproof breathable film is formed on the inner wall of the shell or installed on the inner wall of an opening of the shell. According to the capacitor, the holes are formed in the shell, so that heat generated by the core cladding in the shell can be directly dissipated through the heat dissipation holes, and heat dissipation of the capacitor is accelerated; and the waterproof breathable film can play a role in isolation and dust prevention, so that the effect of protecting the core cladding is achieved.

Description

technical field [0001] The invention relates to an aluminum electrolytic capacitor, in particular to a solid aluminum electrolytic capacitor with good heat dissipation performance and a preparation method thereof. Background technique [0002] When the capacitor is in use, due to the existence of ripple current and the loss of the capacitor itself, a certain amount of heat will be generated. The accumulation of these heat will increase the temperature of the capacitor, which will affect the service life of the capacitor. In severe cases, it will make the capacitor directly scrapped, or even exploded. [0003] There are currently two solutions to solve the above problems, one is to reduce the internal resistance of the capacitor and reduce heat generation; the other is to dissipate the heat generated by the capacitor to the air as soon as possible; for example, patent number 201811242926.6, a The capacitor casing; however, in this patent, the heat is still dissipated through...

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Problems solved by technology

[0002] When the capacitor is in use, due to the existence of ripple current and the loss of the capacitor itself, a certain amount of heat will be generated. The accumulation of these heat will increase the temperature of the capacitor, which will affect the service life of the capacitor. In severe cases, it will make the capacitor directly scrapped, or even exploded

[0003] There are currently two solutions to solve the above problems, one is to reduce the internal resistance of the capacitor and reduce heat generation; the other is to dissipate the heat generated by the capacitor to the air as soon as possible; for example, patent number 201811242926.6, a The capacitor casing; however, in this patent, the heat is still dissipated through the casing, and the heat inside the casing is not directly dissipated, so that the heat dissipation efficiency of the capacitor is not high

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