Waterproof Terminal Lid Locking With Rotating Sliding Cover
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Solution Overview
Problem
Existing waterproof and dustproof electronic devices require complex operations to lock the lid component securely, compromising user-friendliness due to the need for multiple steps and the use of elastic packing that requires pressing the lid against the opening.
Innovation Solution
A rotatable lid component with a slidable portion that engages with the casing in three directions except for the direction of the fixed end, using a water sealing component with elasticity to ensure a secure lock with simplified operation, where the lid component rotates and slides to cover the opening while pressing against the water sealing component for enhanced waterproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the movable component is designed to protrude and retract through a window in the operation case, then the waterproof lid can be locked, but the operation becomes complex requiring two steps in different directions
Solution Approach 1:
The locking function is segmented into multiple engagement points: the engagement protrusion on the lid component engages with the engagement groove on the housing section, while the operation protrusion engages with the operation groove. This segmentation allows independent verification of locking status and simplifies the operation to a single rotational motion that simultaneously achieves both blocking and locking.
Solution Approach 2:
The blocking function and locking function are merged into a single rotational operation. When the lid component is rotated to block the opening, the engagement protrusion automatically engages with the engagement groove, achieving both functions simultaneously rather than requiring separate operations for blocking and locking.
2Reliability
If elastic packing is used to ensure waterproof property, then sealing is improved, but the lid must be pressed against the opening requiring complex operation
Solution Approach 1:
The water sealing component is pre-installed on the housing section in a relaxed state before the lid component is attached. This preliminary positioning allows the sealing component to naturally conform to the opening geometry, ensuring effective sealing without requiring excessive pressing force or complex operational steps from the user.
3Ease of operation
If the lid component is rotatable with one end fixed to the casing, then coverage is achieved, but additional engagement mechanisms are needed to prevent unintended opening
Solution Approach 1:
The engagement protrusion and engagement groove serve multiple functions: they provide the primary locking mechanism to prevent unintended opening, serves as a visual indicator of locking status, and guide the lid component into proper alignment during the blocking operation. This multi-functionality reduces the need for additional separate engagement mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for a secure and user-friendly locking mechanism with reduced operational complexity, ensuring effective waterproofing and dustproofing by maintaining close contact between the lid component and the water sealing component, preventing liquid and dust ingress.
Implementation Method 1
a packing fixed to the waterproof lid for reliably obtaining waterproof property has elasticity
Data Source
AI summary
A casing 1, a lid component 11 for covering a terminal 13 disposed in an opening of the casing 1, and a water sealing component 12 disposed around the terminal 13, are provided. The lid component 11 is structured such that a support portion 11h of a fixing portion 11g is rotatably fixed to the casing 1, and a slidable portion 11b slides relative to a lid portion 11a. Thus, a projection 11c is engaged with a recess 14, and a pair of engagement portions 11f engages with a pair of fixed projections 16. Thus, the lid component 11 engages with the casing 1 in three directions, and is held by being pressed against the water sealing component 12. With this structure, an electronic device having a lid component which can be assuredly locked is obtained.