Fan Stepless Speed Control via Potentiometer Circuit
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Solution Overview
Problem
Existing fans lack the ability to freely adjust wind speed, limiting user experience and performance.
Innovation Solution
A fan design incorporating a stepless adjusting member, such as a potentiometer or rotary encoder switch, connected to a circuit board that adjusts power output to the motor based on user input, allowing for continuous speed adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If buttons are used to adjust wind speeds in existing fans, then the structure is simple and easy to manufacture, but the wind speed cannot be adjusted freely which limits user experience
Solution Approach 1:
The patent replaces traditional mechanical button control with an electronic stepless adjusting member (potentiometer or rotary encoder switch) that provides continuous wind speed adjustment. This substitution enables free wind speed regulation while maintaining reasonable structural complexity through integrated circuit board control.
2Measurement precision
If a stepless adjusting member is added to enable continuous wind speed adjustment, then user experience and wind speed control precision are improved, but the device complexity increases
Solution Approach 1:
The patent implements stepless wind speed adjustment by changing the control parameter from discrete button levels to continuous potentiometer resistance values or rotary encoder pulse signals. This allows precise wind speed control while managing complexity through standard electronic components and circuit board integration.
Data Source
AI summary
The present disclosure provides a fan. The fan includes a fan main body, a circuit board, and an operating element. The circuit board is provided with a stepless adjusting member. The operating element is connected to the stepless adjusting member. The fan main body includes a first motor electrically connected to the circuit board and a fan blade connected to the first motor. The circuit board adjusts power output to the first motor when the operating element rotates and operates the stepless adjusting member. So as to adjust a rotating speed of the first motor. In this way, the user can adjust a desired wind speed of the fan blade according to a need, which solves the problem that the wind speed of the existing fan cannot be freely adjusted and improves the operating performance and the user experience.