Cam Mechanism Fixing Base for Electronic Devices
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Solution Overview
Problem
Conventional fixing bases for electronic devices, such as those with GPS functions, require significant force to both secure and release the device, causing user inconvenience.
Innovation Solution
A fixing base design featuring a housing with a cam and driving structure, including a rotation shaft, force applying portion, and connecting portion, where the cam has a hook that locks onto the electronic device's locking hole, allowing easy attachment and detachment by rotating the driving structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a holding structure with large volume is used to fix the electronic device, then the electronic device can be securely fixed to the fixing base, but the user needs to apply great force to release the electronic device
Solution Approach 1:
The patent employs a cam mechanism that transforms rotational motion into linear locking motion. The cam's curved surface converts the user's rotational input into a locking action that secures the electronic device. This dynamic mechanism allows easy release by simply rotating the cam in reverse, resolving the contradiction between secure fixation and ease of release.
Solution Approach 2:
The cam mechanism operates through periodic rotational action to achieve locking and unlocking. By rotating the cam periodically, the user can alternately lock and unlock the electronic device. This periodic action enables the holding structure to transition between secured and released states, addressing both secure fixation and ease of operation requirements.
2Reliability
If a holding structure with large volume is used to fix the electronic device, then the electronic device can be securely fixed to the fixing base, but the user needs to apply great force to both secure and release the device
Solution Approach 1:
The cam mechanism transforms the user's small rotational force into a large locking force through its geometric shape. The cam's curved surface creates a mechanical advantage that amplifies the user's input force, enabling secure fixation with minimal effort. Conversely, rotating the cam in reverse easily releases the lock without requiring great force to overcome the holding structure.
Solution Approach 2:
The cam's curved surface is essential to its function. The specific curvature of the cam profile determines the locking and unlocking characteristics. This curved geometry allows the cam to convert rotational motion into linear locking motion while providing mechanical advantage, reducing the force required for both securing and releasing the electronic device.
3Volume of moving object
If a cam mechanism with small volume is used, then the fixing base becomes compact and lightweight, but the locking mechanism must be precisely designed to ensure reliable fixation
Solution Approach 1:
The cam mechanism achieves reliable locking with compact dimensions through its dynamic geometric design. The cam profile is specifically shaped to convert rotational motion into effective locking motion, ensuring that even with reduced volume, the mechanism maintains sufficient locking force and reliability. The dynamic action of the cam compensates for the smaller size.
Solution Approach 2:
The invention optimizes the cam's geometric parameters (such as the curvature radius, profile shape, and dimensions) to achieve the desired balance between compact volume and reliable locking. By carefully adjusting these parameters, the mechanism ensures adequate locking force and precision while maintaining a small overall size, thus resolving the contradiction between volume and manufacturing precision requirements.
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 secure fixation and effortless removal of electronic devices from the fixing base, with a compact and lightweight design due to the small volume of the driving structure and cam, reducing user effort and improving usability.
Implementation Method 1
The cam has a hook, and the driving structure is fixedly connected to the cam. When the driving structure drives the cam to rotate, the hook is locked to the locking hole.
Data Source
AI summary
A fixing base is suitable to fix an electronic device having a locking hole. The fixing base includes a housing, a driving structure and a cam. The electronic device is suitable to be held in the housing. The driving structure is provided through the housing, and the cam is disposed in the housing. The cam has a hook, and the driving structure is fixedly connected to the cam. When the driving structure drives the cam to rotate, the hook is locked to the locking hole.