Rotating Button Releasing Mechanism for Portable Device Housing
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Solution Overview
Problem
The engagement between snap fasteners in portable electronic devices can be too firm, making it difficult to easily disassemble the housings of these devices.
Innovation Solution
A releasing mechanism comprising a button, an elastic member, and a shaft that applies a twisting force to resist the inner surfaces of the housings, allowing for easy disassembly by releasing the latching mechanism between the first and second housings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If snap fasteners are used to secure housings, then the engagement strength is improved, but the ease of disassembly deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the latching mechanism adjustable between locked and unlocked states. The movable component allows the housing to transition from a firmly engaged state (for strength) to an easily separable state (for disassembly), resolving the contradiction between engagement strength and ease of disassembly.
Solution Approach 2:
The patent changes the engagement parameter by introducing a movable component that can alter the latching force. When the component is in the first position, strong engagement is maintained; when moved to the second position, the engagement is released, allowing easy disassembly. This parameter change resolves the contradiction between strong engagement and easy disassembly.
2Reliability
If firm engagement is provided between housings, then the reliability of the assembly is improved, but the ease of repair deteriorates
Solution Approach 1:
The dynamic latching mechanism allows the assembly to maintain reliable engagement during normal operation while enabling easy separation when repair is needed. The movable component provides a controlled way to transition from the reliable locked state to the accessible unlocked state, resolving the contradiction between assembly reliability and ease of repair.
Solution Approach 2:
The movable component acts as an intermediary that controls the engagement between housings. It mediates between the need for firm engagement (reliability) and the need for easy separation (repairability) by providing a controlled release mechanism that allows technicians to easily access components when needed.
3Stability of the object's composition
If strong latching force is applied, then the stability of the housing assembly is improved, but the difficulty of detecting and measuring the latching state worsens
Solution Approach 1:
The patent uses visual indication (color or position changes) to show the latching state. The indicator component changes its appearance or position based on whether the housing is locked or unlocked, making it easy to detect the latching state without requiring complex measurement tools, thus resolving the contradiction between stable engagement and easy state detection.
Solution Approach 2:
The indicator component serves as an intermediary that translates the internal latching state into an externally visible signal. It mediates between the strong latching force (which creates stability) and the need for easy detection of the latching state, allowing users to easily determine whether the housing is locked or unlocked without applying force or using measurement tools.
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
Enables easy disassembly of the second housing from the first housing by overcoming the initial firm engagement, allowing for efficient assembly and disassembly of portable electronic devices.
Implementation Method 1
an elastic member and a shaft. The elastic member is connected to the button and the shaft and applies a twisting force to the shaft
Data Source
AI summary
A portable electronic device includes a first housing, a second housing detachably latched to the first housing through a latching tab, and a releasing mechanism. The releasing mechanism includes a button, an elastic member, and a shaft. The button surrounds the shaft and is rotatably assembled to the first housing by the shaft. The elastic member is coiled around the shaft and elastically resists the button to apply an elastic force to enable the button resisting the first housing. When the button rotates about the shaft under a pressure overcoming the elastic force, the latching tab is pushed to release the latching tab and the second housing.