Magnetic Motion Converter for Linear-to-Rotary Transfer
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Solution Overview
Problem
Existing mechanisms can convert rotational motion into linear motion but cannot effectively convert linear motion into rotational motion.
Innovation Solution
A motion direction converter with a rotor, segmented wall members, and linearly movable members, utilizing magnetic members of the same polarity arranged in specific distances and angles to convert linear motion into rotational motion without physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mechanism converts rotational motion into linear motion using magnetic strips and nuts, then linear motion is achieved, but the mechanism cannot convert linear motion into rotational motion
Solution Approach 1:
The patent inverts the conventional motion conversion approach by using repulsive magnetic force between like-polarity magnets instead of attractive force. The linearly movable member with third magnetic member (same polarity as first magnetic member on rotor) creates repulsion that pushes the rotor to rotate, achieving linear-to-rotational motion conversion through reversed magnetic interaction principle
Solution Approach 2:
The patent replaces traditional mechanical contact-based motion conversion with a magnetic field-based system. The third magnetic member on the linearly movable member interacts magnetically with the first magnetic member on the rotor without physical contact, substituting mechanical coupling with magnetic field coupling to achieve motion conversion
2Reliability
If magnetic members of the same polarity are used for motion conversion, then contactless operation is achieved, but control over motion direction and timing becomes difficult
Solution Approach 1:
The patent segments the interaction into distinct phases using multiple magnetic members: the second magnetic member on the segmented wall member interacts with the first magnetic member on the rotor to control rotational position, while the third magnetic member on the linearly movable member provides timed repulsive force. This segmentation enables independent control of rotational positioning and linear-to-rotational conversion
Solution Approach 2:
The patent employs periodic action through the segmented wall member structure and the timed interaction between magnetic members. As the rotor rotates, the second magnetic member periodically interacts with the first magnetic member, creating periodic positioning pulses that control rotational motion in discrete steps, making the continuous magnetic repulsion controllable and predictable
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient conversion of linear motion into rotational motion with a simple structure, reducing component wear and kinetic energy loss, suitable for power generation applications and contributing to clean energy solutions.
Implementation Method 1
the first magnetic member, the second magnetic member, and the third magnetic member are of the same polarity
Data Source
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AI summary
The motion direction converter includes a rotor, a plurality of segmented wall members arranged along the outer circumference of the rotor, and a linearly movable member that moves toward and away from the rotor. A first magnetic member is provided on the outer circumference, a second magnetic member is provided on the segmented wall member and a third magnetic member is provided on a part of the linearly movable member facing the rotor, and these magnetic members are of the same polarity. The distance between the first and second magnetic members and the distance between the first and third magnetic members are formed to increase from the upstream to the downstream in the rotating direction. When the first magnetic member faces the third magnetic member as the rotor rotates, the linearly movable member moves forward towards the rotor, and when the first magnetic member moves from the third magnetic member to the downstream in the rotating direction as the rotor rotates further, the linearly movable member moves back away from the rotor.