Cushioned Screw Nut Assembly for Impact-Stable Camera Mounting
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Solution Overview
Problem
Existing image sensing devices with depth cameras face challenges in heat dissipation, leading to deformation of the back plate under impact, causing position deviation and inaccurate calibration due to the inability of typical back plates to cushion impact forces.
Innovation Solution
A screw nut configuration with an inner nut component, a cushioning component, and an outer nut component, where the cushioning component is sleeved between the inner and outer nut components, allowing for multi-directional movement and effective absorption of impact forces, preventing deformation of the plate part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the back plate is used for heat dissipation, then heat dissipation performance is improved, but the back plate cannot cushion impact force causing deformation
Solution Approach 1:
The screw nut is divided into three separate components: an outer nut component, an inner nut component, and a cushioning component. This segmentation allows each component to perform its specific function - the outer and inner nut components provide fixation while the cushioning component absorbs impact forces, preventing deformation of the back plate.
Solution Approach 2:
The cushioning component acts as an intermediary element between the inner nut component and the outer nut component. It mediates the transmission of impact forces, absorbing them before they reach the back plate, thus protecting the fixation structure from deformation while maintaining the heat dissipation function of the back plate.
2Stability of the object's composition
If the back plate is rigid for structural stability, then structural stability is improved, but impact forces cause deformation and position deviation
Solution Approach 1:
The screw nut assembly transforms from a rigid fixed structure to a dynamic structure where the inner nut component can move relative to the outer nut component through the cushioning component. This dynamic design allows the system to absorb impact forces through controlled movement and elastic deformation, maintaining position accuracy after impacts while preserving structural stability.
Solution Approach 2:
The cushioning component is pre-installed between the inner and outer nut components to provide advance protection against impact forces. This prior cushioning mechanism ensures that when impacts occur, the force is already absorbed and mitigated before it can cause deformation or position deviation in the back plate or image capturing unit.
3Measurement precision
If the fixation parts are rigid to maintain positioning, then positioning accuracy is improved, but impact forces cause permanent deformation
Solution Approach 1:
The fixation system is segmented into multiple components with the cushioning element isolated between the nut components. This segmentation protects the critical positioning function from impact damage by confining the impact absorption to the cushioning component, which does not affect positioning accuracy.
Solution Approach 2:
The cushioning component serves as a protective intermediary that shields the rigid fixation structure from impact forces. It absorbs and dissipates impact energy through its elastic properties, preventing the transmission of damaging forces to the back plate and image capturing unit, thus maintaining both positioning accuracy and reliability.
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 screw nut design effectively cushions impact forces, preventing deformation of the plate part and maintaining the image capturing unit's original position, thus avoiding inaccurate positioning and the need for time-consuming calibration.
Implementation Method 1
The cushioning component is connected between the inner nut component and the outer nut component so that the inner nut component is movably connected to the outer nut component
Data Source
AI summary
An electronic device has a screw nut. The screw nut is configured for fixation of a fastener. The screw nut includes an inner nut component, a cushioning component, and an outer nut component. The inner nut component has a screw hole portion configured for fixation of the fastener. The cushioning component is sleeved on the inner nut component. The outer nut component is sleeved on the cushioning component. The cushioning component is connected between the inner nut component and the outer nut component so that the inner nut component is movably connected to the outer nut component.