Electrolytic capacitor insulation sealing device of air cooling power supply module
By coating the electrolytic capacitor plug with insulating white glue, the problem of dust damage to electrolytic capacitors in air-cooled switching power supply modules is solved, improving sealing and reliability, extending capacitor life and reducing production costs.
CN224288030UActive Publication Date: 2026-05-26SHENZHEN GURUIBAO NEW ENERGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GURUIBAO NEW ENERGY CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Electrolytic capacitors in air-cooled switching power supply modules are susceptible to dust damage in harsh environments, leading to short circuits and burnout. Existing dust prevention measures have limited effectiveness, affecting system reliability and stability.
Method used
Apply insulating white glue, especially epoxy resin glue, to the front of the electrolytic capacitor to enhance its sealing and prevent dust and impurities from entering the pin gaps.
Benefits of technology
It achieves complete insulation and sealing of electrolytic capacitors, preventing short circuits and burnout, extending service life, improving system reliability and production efficiency, and reducing production costs.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN224288030U_ABST
Abstract
The utility model discloses an electrolytic capacitor insulation sealing device for an air-cooled power supply module, which comprises an electrolytic capacitor, and the bottom of the electrolytic capacitor is coated with insulation white glue. A printed circuit board on which the electrolytic capacitor is mounted; wherein the insulating white glue is used for carrying out insulating treatment on the bottom of the capacitor before the electrolytic capacitor is inserted, so that the sealing performance of the electrolytic capacitor in a severe environment is enhanced. According to the utility model, the insulating white glue is coated at the bottom of the electrolytic capacitor before the electrolytic capacitor is inserted, and then the capacitor is installed on the printed circuit board (PCB) and is fixed through wave soldering. The periphery of the capacitor is subjected to insulation sealing treatment, so that dust is effectively prevented from entering and accumulating among capacitor pins, and the phenomena of short circuit and burning are avoided.
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