Cooler fan control circuit
By using a dual thermistor design and PWM signal control, the problems of low energy efficiency and high failure rate of traditional cooler fans are solved, achieving improved reliability and energy efficiency, and ensuring that the fan can still maintain basic functions in the event of a failure.
CN224469348UActive Publication Date: 2026-07-07BEIJING ADSS DEV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ADSS DEV
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-07
Smart Images
Figure CN224469348U_ABST
Abstract
This utility model relates to the field of refrigerator fan control, and more particularly to a refrigerator fan control circuit. In the refrigerator fan control circuit: the first and second input terminals of the window comparison and selection module are electrically connected to the first and second output terminals of the temperature recognition module, respectively; the input terminal of the PWM output module is electrically connected to the output terminal of the window comparison and selection module; the input terminal of the fan drive module is electrically connected to the output terminal of the PWM output module, used to drive the first and second fans to operate at a preset speed according to the PWM signal. This utility model, through the cooperation of the temperature recognition module and the window comparison and selection module, can realize a dual-thermal sensor design, effectively improving the reliability of refrigerator fan control. Simultaneously, through the cooperation of the PWM output module and the fan drive module, the operation control of the fan is realized based on the PWM signal, which can effectively improve overall energy efficiency.
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