Waterproof Locking Structure for Uniform Seal Ring Compression
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Solution Overview
Problem
Existing waterproof locking mechanisms for electronic devices fail to maintain a reliable seal due to non-uniform stress on waterproof rings during screw compression, leading to potential deformation and breakage, which compromises the waterproof function.
Innovation Solution
A locking mechanism design that includes a first and second shell, a waterproof ring clamped between them, and a locking component that compresses the ring uniformly, preventing excessive force and ensuring a stable seal through an abutting relationship, with a fixing hole and open hole configuration that distributes compression evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof ring is pressed and fixed between the shell and screw head by a screw to prevent moisture intrusion, then the waterproof function is achieved, but the rotating torque of the screw causes non-uniform stress leading to deformation and breakage of the waterproof ring
Solution Approach 1:
The locking component serves as an intermediary between the screw and the waterproof ring. Instead of the screw directly compressing the waterproof ring (which causes non-uniform stress), the locking component mediates the force transmission, distributing the compression force uniformly across the waterproof ring through its first abutting surface that contacts the first carrying surface and second abutting surface that contacts the third carrying surface, thereby preventing deformation and breakage while maintaining the waterproof seal
2Reliability
If the screw head compresses the waterproof ring to create a seal, then moisture intrusion is prevented, but excessive compression breaks the waterproof ring causing failure of the waterproof function
Solution Approach 1:
The locking component provides beforehand cushioning by absorbing and distributing the compression force before it reaches the waterproof ring. The component's structure with abutting surfaces against the carrying surfaces creates a controlled compression mechanism that prevents excessive force from breaking the waterproof ring, while still maintaining sufficient compression for the waterproof seal
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 mechanism effectively prevents moisture intrusion by ensuring uniform compression of the waterproof ring, preventing breakage and maintaining a reliable waterproof function, even under excessive compression, thus ensuring the operational integrity of electronic devices.
Implementation Method 1
the locking component compresses the waterproof ring through the carrying surface of the first shell, thereby improving the uniformity of a force of the waterproof ring under compression
Implementation Method 2
The waterproof ring is clamped between the second carrying surface and the third carrying surface... the waterproof ring can be prevented from being broken due to excessive compression
Data Source
AI summary
A locking mechanism includes a first shell, a second shell, a waterproof ring and a locking component. The first shell has a first carrying surface, a second carrying surface and an open hole. The second shell includes a fixing hole recessed in a third carrying surface. A diameter of the fixing hole is less than that of the open hole. The waterproof ring is clamped between the second and the third carrying surface. The locking component penetrates through the open hole, the waterproof ring and the fixing hole so as to be locked to the second shell. The locking component has a first and a second abutting surface. The first abutting surface abuts against the first carrying surface. The second abutting surface passes through the open hole to abut against the third carrying surface, so that the waterproof ring is pressed between the second and the third carrying surface.