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A capacitor, solid-state technology, applied in the field of solid-state capacitor impregnation, can solve the problems of long impregnation time, insufficient impregnation, and incomplete impregnation in the center of the element.
Active Publication Date: 2021-07-06
ZHAOQING BERYL ELECTRONICS TECH
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Problems solved by technology
The impregnation time of the existing process is long; on the other hand, the impregnation is not sufficient, resulting in the center of the element not being impregnated thoroughly
Method used
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Embodiment 1
[0028] A method for impregnating solid capacitors, comprising the steps of:
[0029] 1. Before the solid capacitor is impregnated, the preparation work is as follows:
[0030] The guide pin 11 of the capacitor faces upward, and the anode guide pin 11 is spot-welded on the carrier strip 20. The consistency of the welding height must be ensured to fix multiple elements 10 on the same plane to facilitate the impregnation operation. The carrier bar 20 can be an iron bar.
[0031] Second, impregnation:
[0032] Perform the first cycle of impregnation:
[0033] (1) The tray 30 rises to suspend the elements 10, dry vacuuming to make the vacuum degree negative pressure, and the dry vacuuming time is 5-10s;
[0034] (2) Lower the tray 30 to lower the element 10 and immerse it in the impregnating solution. The impregnation depth of the element 10 is 1 / 2~2 / 3 of the height of the core package of the element 10; continue vacuuming so that the vacuum degree P1 is -30Kpa, and the holding ...
Embodiment 2
[0053] Different from Embodiment 1, in this embodiment:
[0054] During the first cycle of impregnation, the vacuum degree P1 is -40Kpa when the element is impregnated;
[0055] During the second cycle of impregnation, the vacuum degree P2 is -60Kpa when the element is impregnated;
[0056] When the third cycle of impregnation is carried out, the vacuum degree P3 is -80Kpa when the element is impregnated;
[0057] When vacuuming after impregnation, the vacuum degree P4 is -100Kpa.
Embodiment 3
[0059] Different from Embodiment 1, in this embodiment, the impregnation only includes two cycles.
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Abstract
The invention discloses a method for impregnating a solid capacitor, comprising the following steps: (1) suspending the element, and dry vacuuming for 5 to 10 seconds to make the vacuum degree negative; ~20s, the degree of vacuum is negative pressure, and the degree of vacuum is equal to the degree of vacuum in step (1); (3) keep the elements in the impregnation solution, and deflate to normal pressure; (4) the above steps (1)~( 3) It is one cycle; execute this cycle at least twice, and the vacuum degree of vacuum impregnation gradually increases during multiple cycles; (5) Suspend the element in the air, dry vacuum, the vacuum degree is negative pressure, and the vacuum degree is greater than the above any degree of vacuum. The solid capacitor of the invention reduces the impregnation time and improves the impregnation effect; the center of the element can be thoroughly impregnated.
Description
technical field [0001] The invention relates to the technical field of capacitor manufacturing, in particular to a solid capacitor impregnation method. Background technique [0002] The manufacturing method of solid capacitors generally includes cutting, nailing, impregnation, assembly, casing, aging, and characteristic testing. Among them, the existing impregnation method for solid capacitors, such as the one published in the application number 201810420475.4, named a high-voltage solid electrolytic capacitor impregnation method, when impregnating a solid capacitor, it is necessary to impregnate the core package with an impregnation solution for 10- 120 minutes. The impregnation time of the existing technology is long; on the other hand, the impregnation is insufficient, resulting in the impregnation of the center of the element is not thorough. Contents of the invention [0003] In order to make up for the defects of the prior art, the invention provides a solid capaci...
Claims
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