A medium-voltage switchgear with a moisture-proof structure

By installing dehumidification mechanisms at the air inlet and outlet of the medium-voltage switchgear and using desiccant packs to remove moisture, the problems of low construction efficiency and moisture prevention when installing medium-voltage switchgear outdoors are solved, and the working stability of electrical equipment is improved.

CN224288930UActive Publication Date: 2026-05-26CHONGQING XINDONGTAI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING XINDONGTAI IND CO LTD
Filing Date
2025-06-18
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing medium-voltage switchgear cannot be height-adjusted when installed outdoors, resulting in low construction efficiency. At the same time, the lack of moisture-proof structure causes the performance of electrical equipment to degrade in humid environments, making it prone to failure.

Method used

A dehumidification mechanism is installed at the air inlet and outlet of the medium-voltage switchgear, including a mounting base, fan, sealing plate, threaded pipe, cross ventilation box, limit mesh plate, threaded ventilation cover and dust removal device. Desiccant packs are used to remove moisture and achieve air drying, and air circulation is achieved in combination with the fan.

Benefits of technology

By circulating dry air, electrical equipment is prevented from operating in a humid environment for extended periods, thus improving the equipment's operational stability and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224288930U_ABST
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Abstract

This utility model relates to the field of switchgear technology, specifically to a medium-voltage switchgear with a moisture-proof structure; it includes a switchgear body and a dehumidification mechanism. The dehumidification mechanism includes a mounting base, a fan, a sealing plate, a threaded pipe, a cross ventilation box, a limiting mesh plate, a threaded ventilation cover, and a dust removal device. When the electrical equipment inside the switchgear body is working, the fans located at its air inlet and air outlet will operate accordingly. The fan on the air inlet side draws in cold air from the outside, and the fan on the air outlet side draws in hot air from the inside to the outside. When the air enters, it passes through a desiccant pack placed between the cross ventilation box and the limiting mesh plate to remove moisture, so that the air entering the cabinet body is in a dry state, avoiding the electrical equipment from working in a humid environment for a long time, thereby achieving moisture-proof treatment of the switchgear body and improving the working stability of the internal electrical equipment.
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