Compact Orientation Stabilizing Device with Nested Motor and Flywheel
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Solution Overview
Problem
Conventional gyro stabilizers are large in size, making them difficult to install on objects like personal mobility devices and unmanned delivery robots, and they require significant space, limiting the integration of other components.
Innovation Solution
An orientation-stabilizing device with a motor stator and rotor arranged inside a cover, minimizing external size and allowing for a wider tilting range, featuring a bearing and flywheel configuration that maximizes rotational inertial kinetic energy and improves energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional gyro stabilizer is installed on an object, then the orientation stabilization function is achieved, but the external size becomes large and occupies significant space
Solution Approach 1:
The motor stator and motor rotor are nested inside the cover, with the center shaft passing through the center hole of the cover. The flywheel is positioned within the cover, creating a compact nested structure that minimizes external dimensions while maintaining all functional components.
Solution Approach 2:
The patent transitions from a conventional protruding motor configuration to a planar configuration where all components are contained within the cover's boundary. The motor stator and rotor are arranged in a two-dimensional plane inside the cover, eliminating the need for external protrusions and reducing the device to a flat profile.
2Volume of moving object
If the motor components are arranged inside the cover, then the external size is reduced, but the space for component arrangement becomes limited
Solution Approach 1:
The device is segmented into distinct functional modules: the motor stator with coil, the motor rotor, the center shaft, the flywheel, and the cover. Each component has a specific function and is positioned optimally within the limited space, with clear separation of responsibilities that simplifies the overall arrangement.
Solution Approach 2:
Different regions of the cover are optimized for specific components: the center hole accommodates the center shaft, the inner circumferential surface holds the motor stator, and the outer region contains the flywheel. This localized optimization allows efficient space utilization without compromising any component's performance.
3Adaptability or versatility
If the flywheel is allowed to tilt freely, then the tilting range is increased, but interference with the cover occurs
Solution Approach 1:
The bearing acts as an intermediary between the flywheel and the cover, enabling the flywheel to tilt and rotate freely while preventing direct contact and interference with the cover. The bearing supports the flywheel's motion and accommodates tilting in multiple directions without allowing the flywheel to strike the cover's inner surface.
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
The device reduces external size, maximizes tilting range, and quickly corrects object orientation with improved efficiency, even when significantly tilted, by minimizing energy loss and securing components for stable operation.
Implementation Method 1
a motor stator (10) having a coil (13) disposed on an outer circumferential surface of a center shaft (12), the coil (13) being magnetized when electricity flows through it
Implementation Method 2
a bearing (30) installed between the flywheel (20) and the cover (40), and configured to allow the flywheel (20) to rotate in an aligned state inside the cover (40)
Implementation Method 3
a flywheel (20) having a central inner circumferential surface (22) fixed to the motor rotor (16) to rotate together with the motor rotor (16)
Data Source
AI summary
Provided is an orientation-stabilizing device, including: a motor stator having a coil disposed on an outer circumferential surface of a center shaft, the coil being magnetized when electricity flows through it; a motor rotor made of a permanent magnetic material, disposed outside the coil, and configured to rotate in response to the magnetism; a flywheel having a central inner circumferential surface fixed to the motor rotor to rotate together with the motor rotor; a cover installed on the center shaft and configured to surround the flywheel; and a bearing installed between the flywheel and the cover, and configured to allow the flywheel to rotate in an aligned state inside the cover, wherein the motor stator and the motor rotor do not protrude toward a surface of the cover.