Backpack Blower Weight Layout for Upright Posture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power equipment, such as garden machines, suffer from ergonomic issues due to the heavy components being positioned on a backpack, leading to user arm stress and fatigue.
Innovation Solution
The backpack power equipment features a base frame with a motor controller and battery management modules positioned above a pivot axis, allowing the axial blower to be rotatable and the weight distribution to be higher, improving ergonomics by enabling a more upright posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If heavy components are positioned on the backpack base frame, then the power equipment can be worn on the user's back, but this causes arm stress and fatigue on the user
Solution Approach 1:
The patent repositions heavy components (motor controller module and battery management module) from the lower base frame to the upper portion of the base frame, changing the vertical dimension of weight distribution. This dimensional change shifts the center of gravity upward, allowing the user's back and shoulders to bear the weight instead of the arms, thereby resolving the contradiction between wearable operation and arm stress reduction
2Adaptability or versatility
If the axial blower is made rotatable with respect to the base frame, then the equipment becomes more adaptable to different working positions, but this increases device complexity
Solution Approach 1:
The patent implements rotational capability by connecting the axial blower to the base frame through a connecting member that enables rotation about a vertical axis. This dynamic connection allows the blower to be rotated to different working positions while maintaining a relatively simple structural design, resolving the contradiction between adaptability and device complexity
Data Source
AI summary
According to examples, a backpack power equipment may include a power equipment, a base frame to be worn on a user's back, a connecting member connecting the power equipment to the base frame about an axis at a first height from a bottom of the base frame, a motor controller module mounted to the base frame, and a battery management module mounted to the base frame. The motor controller module and the battery management module are both positioned above the first height. By positioning the motor controller module and the battery management module above the first height, more of the weight may be at a higher position, which may enable a user to maintain a more upright posture during use, which may improve ergonomics of the backpack power equipment disclosed herein.