Detachable Carrying Case Lid With Stable-State Locking
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Solution Overview
Problem
The existing electrical devices with integrated lids interfere with user operations, causing inconvenience due to the inability to decouple the lid from the case body, which can obstruct installation or usage.
Innovation Solution
A coupling mechanism is introduced that allows the lid to be switched between a coupled and decoupled state, enabling the lid to be removed when interfering, using a tool-free mechanism that prevents decoupling when the device is unstable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lid is integrated and coupled to the case body, then the structural integrity and protection are improved, but the ease of operation deteriorates when the lid interferes with user work
Solution Approach 1:
The coupling mechanism is designed to be switchable between coupled and decoupled states, allowing the lid to dynamically change its connection status with the case body based on operational needs, resolving the contradiction between structural integrity and ease of operation
Solution Approach 2:
The lid and case body are segmented as separable components through the switchable coupling mechanism, allowing independent manipulation of the lid when interference occurs, while maintaining integrated structure when needed
2Ease of manufacture
If the lid is fixed and cannot be decoupled, then the manufacturing simplicity is improved, but the adaptability deteriorates when the lid interferes with installation or usage
Solution Approach 1:
The coupling mechanism provides dynamic reconfigurability between coupled and decoupled states, enabling the device to adapt to different usage scenarios without complicating the manufacturing process
Solution Approach 2:
The switchable coupling mechanism serves multiple functions: providing structural integrity when coupled and enabling lid removal when interference occurs, thus achieving multi-functionality without significant manufacturing complexity increase
3Ease of operation
If the coupling mechanism allows easy decoupling, then the ease of operation is improved, but the reliability deteriorates due to potential unintended decoupling during unstable conditions
Solution Approach 1:
The coupling mechanism incorporates a state detection function that monitors whether the device is in a stable or unstable state, and automatically adjusts the coupling strength or locking status accordingly, preventing unintended decoupling while allowing intentional decoupling when needed
Data Source
AI summary
An electrical device may include: a case body defining a housing space; a battery receptacle disposed on the case body, wherein a battery pack used as a power supply for a power tool is detachably attached to the battery receptacle; an external terminal disposed on the case body and configured to be electrically connected to the battery pack via the battery receptacle; a lid configured to be movable relative to the case body between an open position where the lid opens the housing space and a closed position where the lid closes the housing space; and a coupling mechanism configured to be switchable between a coupling state in which the coupling mechanism couples the case body and the lid to each other and a decoupled state in which the coupling mechanism decouples the case body and the lid from each other.