Assembly-Type Motor Fixing Structure for Wearable Exercise Devices
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Solution Overview
Problem
There is a growing need for assistance devices that can help individuals with joint-related issues, such as pain and inconvenience, particularly in a rapidly aging society. Existing exercise assistance devices may not adequately support the user's joints, leading to discomfort and limited effectiveness in enhancing muscle strength.
Innovation Solution
An assembly-type motor fixing structure is integrated into an exercise assistance device, comprising an upper frame, a lower frame, upper and lower holders, a main holder, and a motor. This structure supports the user's proximal part, transmits power from an actuator to a thigh belt, and assists the motion of lower body joints, enhancing user comfort and exercise efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple motor mounting structure is used, then device complexity is reduced, but reliability of motor fixation deteriorates
Solution Approach 1:
The motor mounting structure is divided into multiple independent components: upper frame, lower frame, upper holder, lower holder, and main holder. Each component performs a specific function and can be assembled independently, reducing overall complexity while ensuring reliable motor fixation through the coordinated action of segmented parts.
Solution Approach 2:
The holders are nested within the frame structure, with upper and lower holders connecting to the respective frames, and the main holder positioned between them. This nested arrangement allows compact integration of multiple support elements, simplifying the overall structure while maintaining robust motor mounting capability.
2Device complexity
If motor is directly connected to frame, then device complexity is reduced, but stability of power transmission deteriorates
Solution Approach 1:
The main holder acts as an intermediary component between the motor and the frame structure. It provides a dedicated mounting interface that stabilizes power transmission by distributing mechanical loads and ensuring rigid connection, while keeping the overall power transmission structure relatively simple.
3Reliability
If multiple holders are used to support motor, then reliability of motor fixation is improved, but device complexity increases
Solution Approach 1:
The holders serve multiple functions: structural support, motor mounting, and power transmission stabilization. By designing holders that perform multiple roles simultaneously, the need for additional specialized components is reduced, thereby improving motor fixation reliability without proportionally increasing device complexity.
Data Source
AI summary
An assembly-type structure for fixing a motor of a wearable device may include: an upper frame and a lower frame that support a proximal part of a user and face each other in parallel; an upper holder that is connected to the upper frame; a lower holder that is connected to the lower frame; a main holder that is provided between the upper frame and the lower frame and supported by the upper holder and the lower holder; and a motor that is connected to the main holder.