Power Storage Unit Mounting Structure for Article Transport Vehicles
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Solution Overview
Problem
Existing article transport vehicles face challenges in securely fixing and easily replacing power storage bodies, such as batteries, due to vibration-induced mechanical loads and degradation over time, which affects their power storage performance.
Innovation Solution
The design incorporates a power storage unit held by a holding member with recessed groove portions and ribs on the vehicle body frame and cover, allowing for secure positioning and easy replacement without the need for fastening members, ensuring the power storage unit is appropriately fixed and replaceable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power storage body is firmly fixed to prevent displacement during vehicle operation, then the reliability improves, but the ease of replacement deteriorates
Solution Approach 1:
The fixing structure is divided into separate positioning ribs on the vehicle body frame and corresponding positioning grooves on the power storage body. This segmentation allows the power storage body to be precisely positioned and firmly fixed during operation, while still enabling easy removal by simply disengaging the grooves from the ribs without requiring complex fastening mechanisms
Solution Approach 2:
The positioning grooves and ribs are designed to automatically engage and secure the power storage body in the correct position during installation. The structure self-positions the power storage body without requiring additional alignment tools or complex fastening operations, making replacement simple while ensuring reliable fixation during vehicle operation
2Ease of operation
If the power storage body is easily removable for replacement, then the ease of operation improves, but the fixing reliability deteriorates
Solution Approach 1:
The fixing structure is divided into separate positioning ribs on the vehicle body frame and corresponding positioning grooves on the power storage body. This segmentation allows the power storage body to be precisely positioned and firmly fixed during operation, while still enabling easy removal by simply disengaging the grooves from the ribs without requiring complex fastening mechanisms
Solution Approach 2:
The positioning grooves and ribs are designed to automatically engage and secure the power storage body in the correct position during installation. The structure self-positions the power storage body without requiring additional alignment tools or complex fastening operations, making replacement simple while ensuring reliable fixation during vehicle operation
3Reliability
If the power storage body is fixed using conventional fastening members, then the fixing reliability improves, but the device complexity increases
Solution Approach 1:
The invention extracts and eliminates the need for conventional fastening members such as bolts, nuts, or clips. Instead, it uses integrated positioning ribs and grooves that are built into the vehicle body frame and power storage body respectively. This extraction of fastening components simplifies the overall structure while maintaining reliable fixation through the geometric interlocking of the rib-groove interface
Data Source
AI summary
A vehicle body frame includes a first rib protruding from a bottom surface portion toward an upper side and extending along a first direction. A vehicle body cover includes a second rib protruding from a top surface portion toward a lower side and extending along a second direction. A lower frame portion of a holding member that holds a power storage body includes a first recessed groove portion recessed from a lower end surface toward the upper side and extending along the first direction. An upper frame portion of the holding member includes a second recessed groove portion recessed from an upper end surface toward the lower side and extending along the second direction. A power storage unit is sandwiched between the bottom surface portion of the vehicle body frame and the top surface portion of the vehicle body cover.