Resilient Friction Element for Camera Angular Positioning
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Solution Overview
Problem
Conventional image-capturing devices in electronic equipment, such as notebook computers, require complex structural designs and additional components like rotary shafts, gear wheels, and motors to position the image-capturing device at a selected angular position, leading to increased assembly time and production costs.
Innovation Solution
An image-capturing device with a simple structure utilizing a resilient friction element in frictional contact with a fixing element, allowing the image-capturing module to be positioned at a selected angular position through interference friction, reducing the need for complex calculations and additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rotary shaft, gear wheel and rack assembly, or motor is used to position the image-capturing device, then the image-capturing device can be positioned at a selected angular position, but the structure becomes complicated and assembly time increases
Solution Approach 1:
The patent extracts and eliminates the complex mechanical transmission components (rotary shaft, gear wheel, rack assembly, motor) from the positioning system, retaining only the essential friction-based positioning mechanism between the resilient friction element and fixing element, thereby simplifying the overall structure while maintaining positioning capability
Solution Approach 2:
The patent replaces the complex mechanical transmission system with a friction-based positioning system using a resilient friction element that contacts the fixing element directly, substituting mechanical gears and motors with a simpler friction engagement mechanism that achieves the same positioning function
2Manufacturing precision
If a rotary shaft, gear wheel and rack assembly, or motor is used to position the image-capturing device, then the image-capturing device can be positioned at a selected angular position, but assembly time and production costs increase
Solution Approach 1:
The patent removes multiple assembly steps associated with installing rotary shafts, gear assemblies, and motors, reducing the number of components that need to be assembled and thereby increasing assembly speed and productivity
Solution Approach 2:
The patent combines the positioning function into a single friction-based mechanism where the resilient friction element directly engages with the fixing element, merging multiple separate positioning components into one integrated system that is faster to assemble
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 significantly reduces assembly time and production costs by employing a few components and a straightforward structure, enabling precise angular positioning of the image-capturing device using interference friction between the resilient friction element and the fixing element.
Implementation Method 1
positioned at a selected angular position through frictional contact between a resilient friction element and a fixing element
Implementation Method 2
is deformed and compressed into the accommodating groove by the friction face
Data Source
AI summary
An image-capturing device includes a fixing element, an image-capturing module, and a resilient friction element. The fixing element includes a fixed friction face. The image-capturing module includes a journal portion connected rotatably to the fixing element, and a main body connected to the journal portion and having a lens. The journal portion has an outer surface facing the friction face and rotatable relative to the friction face, and at least one accommodating groove formed in the outer surface. The resilient friction element is disposed on the outer surface of the journal portion, and includes at least one friction portion spanning the accommodating groove. The friction portion is in frictional contact with the friction face, and is deformed and compressed into the accommodating groove by the friction face.