Heat dissipation device of electric control board and range hood comprising same

By using a double-layer metal cover structure and a cooling fan design, the problem of poor heat dissipation of the range hood's electronic control board is solved, achieving efficient heat dissipation and temperature control.

CN224343451UActive Publication Date: 2026-06-09NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing range hood control board has poor heat dissipation, especially at high power, making it difficult to meet safety requirements, and the concentrated heat on the high-voltage side leads to excessively high temperature.

Method used

It adopts a double-layer metal cover structure. The outer metal cover is equipped with heat dissipation air inlet and outlet, while the inner cover encloses the electronic control board. The cooling fan draws air to form multiple heat dissipation air channels, and the airflow is accelerated by the inclined design and the baffle guide to enhance the heat dissipation effect.

Benefits of technology

It improves the heat dissipation efficiency of the electronic control board, avoids oil contamination, ensures that the temperature is within a safe range, and enhances heat exchange efficiency and overall heat dissipation effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224343451U_ABST
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Abstract

The utility model provides a kind of heat dissipation device of electric control board and range hood comprising it, heat dissipation device includes first metal cover and the second metal cover of interval sleeve in first metal cover, electric control board is enclosed in second metal cover;Two opposite side walls of first metal cover are respectively set with heat dissipation air inlet at bottom position, and heat dissipation air outlet is set on the top surface of first metal cover;First metal cover is equipped with heat dissipation fan at heat dissipation air outlet, and heat dissipation fan is inhaled gas between first metal cover and second metal cover in suction mode. Wherein, electric control board is enclosed in second metal cover, avoid oil dirt to enter, cause electric control board to be contaminated. By heat dissipation fan in heat dissipation air outlet suction, airflow speed in heat dissipation air duct is accelerated, and overall heat dissipation effect is improved. Hot airflow generated by electric control board flows along the inner surface of second metal cover, and heat generated by electric control board is quickly taken away by heat exchange with the gas of outer surface, so as to improve heat dissipation effect.
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