A frequency converter heat dissipation and dust prevention device

By installing a dustproof mechanism outside the inverter's heat dissipation window, and using components such as dust covers, bent ducts, and dustproof cotton sheets, the problem of dust being drawn into the inverter's cooling fan in a dusty environment is solved, achieving effective dust prevention and efficient heat dissipation.

CN224289607UActive Publication Date: 2026-05-26YUNNAN ZHONGLONG DIANNAN IND CONTROL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN ZHONGLONG DIANNAN IND CONTROL TECHNOLOGY CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In dusty environments, the inverter's cooling fan can easily draw in dust, resulting in poor heat dissipation and affecting the equipment's lifespan.

Method used

A dustproof mechanism is installed outside the heat dissipation window of the frequency converter, including a dust cover, a bent duct, a primary resistance frame, a secondary resistance frame, and dustproof cotton sheets, forming a meandering airflow structure to prevent dust from entering and ensure smooth airflow.

Benefits of technology

It effectively prevents dust from entering the inverter, extends equipment life, and ensures efficient heat dissipation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224289607U_ABST
    Figure CN224289607U_ABST
Patent Text Reader

Abstract

This utility model discloses a heat dissipation and dust prevention device for a frequency converter, including a frequency converter body. The bottom shell of the frequency converter body is provided with a heat dissipation window. It also includes a dust prevention mechanism and a cooling fan. The dust prevention mechanism includes a dust cover, a bent guide tube, a first resistance frame, a second resistance frame, dustproof cotton sheets, and a screw seat. By setting the dust prevention mechanism at the frequency converter body outside the heat dissipation window, together with the cooling fan, a heat dissipation and dust prevention structure is formed. The dust prevention mechanism can effectively trap dust through components such as the dust cover, the first resistance frame, and the dustproof cotton sheets in the second resistance frame, preventing dust from adhering to the cooling fan and fins inside the frequency converter body. Furthermore, the dust cover of the dust prevention structure is equipped with a cooling fan. The cooling fan, together with the bent guide tube, the dust cover, and the side wall air grooves of the first resistance frame and the second resistance frame, form a meandering airflow structure, which intercepts dust while ensuring smooth airflow and ensuring efficient heat dissipation of the frequency converter.
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