Vehicle Battery Case Locking Structure for Terminal Protection
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Solution Overview
Problem
Existing battery storage devices for vehicles, particularly in electric motorcycles, face challenges in protecting the terminal portion during insertion and removal, as the protruding terminal may not be adequately safeguarded against high-speed insertion or other mishandling.
Innovation Solution
A battery storage device with a lock mechanism and operation member that fixes the battery to the case, and a terminal displacement mechanism, where the operation member overlaps the inserting/removing port, preventing erroneous insertion and reducing load on the terminal when the battery is not inserted, and allowing secure connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal portion protrudes upward from the bottom portion of the battery case to enable connection, then the connection function is improved, but the terminal portion becomes vulnerable to damage during high-speed insertion or mishandling
Solution Approach 1:
The operation member is positioned to overlap the inserting/removing port in advance (before battery insertion), creating a preventive barrier that stops erroneous insertion before it can damage the terminal portion. This preliminary protective action resolves the contradiction by maintaining terminal reliability while preserving connection functionality.
Solution Approach 2:
The operation member serves as an intermediary element between the inserting/removing port and the terminal portion. It mediates the interaction by physically blocking the port when in the overlapping position, thereby protecting the terminal from direct exposure to insertion forces while allowing normal operation when positioned differently.
2Reliability
If the operation member is positioned to overlap the inserting/removing port to prevent erroneous insertion, then terminal protection is improved, but the ease of inserting and removing the battery may be reduced
Solution Approach 1:
The operation member is designed to be movable between different positions (overlapping the port and deviated from it). This dynamic positioning allows the system to switch between protective mode (overlapping) and operational mode (deviated), resolving the contradiction by providing both protection and ease of operation at different times as needed.
3Reliability
If a lock mechanism is added to fix the battery to the battery case, then connection reliability is improved, but the device complexity increases
Solution Approach 1:
The lock mechanism is integrated with the existing operation member, allowing a single component to perform both operational functions (controlling terminal exposure) and locking functions (securing the battery). This merging reduces overall structural complexity while maintaining connection reliability.
Data Source
AI summary
A battery storage device includes a battery case (42), a case side connection terminal (43), a lid member (8), a lock mechanism (133), and an operation member (44). The lock mechanism (133) is capable of fixing a battery (62A or 62B) stored in the battery case (42) to the battery case (42) below the lid member (8). The operation member (44) is constituted such that at least a part thereof overlaps an inserting/removing port (136) on an upper side in a view in an insertion direction of the battery (62A or 62B) in a state at a lock operation position.