Method and device for rotating air deflector to preset position and air conditioner
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Solution Overview
Problem
The existing air conditioner systems face inaccuracies in positioning the rotation angle of the air guide plate due to weight and gear gap issues, leading to position jumps and incorrect wind outlet directions, affecting user comfort and aesthetic appearance.
Innovation Solution
A method and device that determine the angles between the preset and limiting positions of the air guide plate, controlling its rotation to the position with the smaller included angle and compensating for reverse rotation angles to ensure precise positioning, thereby reducing the likelihood of position jumps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the air guide plate is driven to rotate via motor with transmission gears, then the air guide plate can be rotated to different positions for different operation modes, but the weight of the air guide plate and gear gaps generate position jumps causing inaccurate positioning
Solution Approach 1:
The system performs preliminary actions by first rotating the air guide plate to a limiting position (where gravity and gear meshing provide natural positioning), then calculates and executes a compensated reverse rotation angle to reach the target position. This two-step preliminary action sequence eliminates position jumps caused by direct rotation from gravity-dependent positions.
Solution Approach 2:
The system changes the rotation parameter strategy by determining whether to rotate to the first or second limiting position based on comparing rotation angles. It also dynamically adjusts the reverse rotation angle through compensation calculations, changing parameters adaptively to maintain positioning accuracy across different operating conditions.
2Device complexity
If the air guide plate rotates to preset position directly, then the control is simple, but the position jump causes the rotation angle to deviate resulting in inaccurate wind outlet direction
Solution Approach 1:
The system implements feedback by calculating the actual rotation angle based on the compensated angle and the predetermined relationship between rotation angles and air guide plate positions. This feedback mechanism ensures the air guide plate reaches the accurate preset position, maintaining reliable wind outlet direction control.
3Ease of manufacture
If the air guide plate is stored at random position due to position jump, then the storage function is simple, but the gap affects the aesthetic appearance and user experience
Solution Approach 1:
The system performs preliminary action by ensuring the air guide plate reaches an accurate limiting position (where gravity provides natural positioning) before initiating the reverse rotation to the preset position. This preliminary positioning action ensures the plate is stored at the correct position, eliminating gaps and maintaining aesthetic appearance.
Data Source
AI summary
A method and a device for rotating an air guide plate to a preset position, and an electronic device. The method including: acquiring a first angle between a preset position and a first limiting position and a second angle between a second limiting position and the preset position (S110), wherein the first limiting position and the second limiting position are two limiting positions of the air guide plate rotating upward and downward; judging whether the first angle is less than the second angle (S120); when the first angle is less than the second angle, controlling the air guide plate rotates to the first limiting position (S130); controlling the air guide plate to rotate in an opposite direction to the preset position (S150).limiting positions An angle of the reverse rotation is usually small, and the probability of the position jump is small, so that a rotation angle of the air guide plate can be positioned more accurately.