Solid-state capacitor and impregnation method thereof

Abstract

The invention discloses a solid-state capacitor and an impregnation method thereof, and the method comprises the following steps: (1) injecting an impregnation liquid into an impregnation barrel according to the use amount of the impregnation liquid required for impregnation of one core each time; (2) in a vacuum state, putting a core package into an impregnation barrel for impregnation treatment;(3) after the impregnation treatment, inverting a core bag; (4) baking treatment; and (5) repeating the step (1) and the step (4) at least once. Due to the fact that the liquid absorption amount needed by each core package is accurately injected in each time of impregnation, redundant impregnation liquid does not exist, liquid absorption is not needed, and waste of the impregnation liquid is reduced. No impregnation liquid remains in the impregnation barrel, and the impregnation liquid is a new impregnation liquid for next impregnation, so that the next impregnation is facilitated; and moreover, after each time of core impregnation treatment, the inverted core package is taken out, and the impregnation liquid is transferred to the lead end by utilizing gravity, so that the impregnation liquid is prevented from scabbing at the bottom of the core bud, the impregnation liquid can permeate from the bottom of the core bud in the next time of impregnation, and impregnation is facilitated.

Description

technical field [0001] The invention relates to the technical field of capacitor manufacturing, in particular to a solid capacitor and an impregnation method thereof. Background technique [0002] The production process of existing solid capacitors includes the following steps: [0003] (1) Core package winding: Electrolytic paper is inserted between the anode foil and the cathode foil to form a core package; [0004] (2) Chemical repair treatment: immerse the wound core package in the chemical conversion solution for chemical repair treatment, take it out and bake it; [0005] (3) Impregnation step: immerse the wound core pack in the polymer dispersion for impregnation; after impregnating the dispersion, use absorbent paper to absorb excess dispersion; [0006] (4) Heating polymerization step: subjecting the core bag obtained in step (3) to heat polymerization treatment; [0007] (5) Encapsulation step: wrap the core into the shell and seal it with a rubber plug; [000...

AI Technical Summary

Problems solved by technology

[0010] 1. Waste of cost: The absorbent paper used for absorbing liquid needs to be purchased at a cost, and at the same time, the dispersion liquid that is sucked away during the liquid absorption cannot be reused, resulting in huge waste;

[0011] 2. Pollution of the environment: The absorbent paper after absorbing liquid is attached to a large amount of dispersion liquid, which requires special treatment, otherwise it will cause environmental pollution;

[0012] 3. The degree of liquid absorption is difficult to control, either excessive liquid absorption or insufficient liquid absorption, resulting in poor product consistency;

[0013] 4. After the dispersion liquid in the impregnation tank is vacuumed for many times, the water evaporates and the viscosity becomes larger, which makes the next impregnation difficult

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