High-performance polyurethane pouring sealant filling device for capacitor

By designing a high-performance polyurethane potting device for capacitors with a negative pressure pump box and sealing components, the problems of air leakage and drying were solved, quantitative filling was achieved, and filling efficiency and reliability were improved.

CN224177230UActive Publication Date: 2026-04-28JIANGSU TIANKANG ELECTRONIC SYNTHETIC MATERIALS CO LTD
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Patent Information

Application Number
CN202520926428.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-28
Estimated Expiration
2035-05-12

AI Technical Summary

Technical Problem

In the prior art, the high-performance polyurethane potting compound filling device for capacitors has the problem of air leakage and empty suction during material suction, resulting in insufficient filling volume. At the same time, the potting compound is prone to drying out and must be stored before filling to prevent the raw material from being exposed and causing the device to become blocked.

Method used

A high-performance polyurethane potting compound filling device for capacitors was designed, comprising a fixing mechanism, a filling and conveying mechanism, and a filling and adjusting mechanism. The device achieves negative pressure drive through a negative pressure pump box, and the design of the sealing element and negative pressure plug prevents air leakage and drying, thus achieving quantitative filling.

Benefits of technology

It effectively prevents air leakage and drying problems in the filling head, ensures sufficient filling volume, avoids clogging of the filling device, and improves filling efficiency and reliability.

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Abstract

The utility model discloses a high-performance polyurethane pouring sealant filling device for a capacitor, which relates to the technical field of sealant filling and comprises a fixing mechanism, a filling conveying mechanism is fixedly arranged at the upper end of the fixing mechanism, and a filling adjusting mechanism is arranged at the output end of the filling conveying mechanism. The pouring sealant filling device solves the problems that when a filling head of an existing pouring sealant filling device sucks materials, air leakage and air suction exist, and meanwhile pouring sealant of a capacitor is prone to air drying, the pipeline of the pouring sealant filling pipe is provided with a sealing line for lifting the pouring sealant, air drying is prevented, filling storage materials are reduced, and the filling efficiency is improved. Through matched arrangement of the filling adjusting mechanism and the filling conveying mechanism, the negative pressure pump box achieves negative pressure driving, before filling, the negative pressure pump box needs to be started firstly to exhaust air in the negative pressure pipe, then the suction assembly is driven to rise to suck the pouring sealant into a cavity between the suction assembly and the filling outer frame from the sealant filling pipe, then the negative pressure pump box is closed, and then the negative pressure pump box is started to suck the pouring sealant into the cavity between the suction assembly and the filling outer frame. The negative pressure plug is arranged to be a negative pressure plug, and empty suction is effectively prevented.
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