Sensor Holder Snap Fit Design for Housing Attachment
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Solution Overview
Problem
Existing sensor attachment methods for image forming apparatuses are costly and complex, lacking a straightforward and cost-effective solution for securely attaching sensors to housing units.
Innovation Solution
A sensor holder design utilizing a combination of snap fits, including a push lug for pressing the sensor against the housing and additional snap fits for secure attachment at multiple points, allowing for easy installation and alignment of the sensor within the housing unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sensor attachment methods are used, then the sensor can be securely attached to the housing unit, but the attachment process becomes costly and complex
Solution Approach 1:
The attachment mechanism is divided into multiple independent snap fits distributed at different locations on the sensor holder. Each snap fit operates independently to provide secure attachment, eliminating the need for complex single-point fastening systems while maintaining reliability.
Solution Approach 2:
The snap fit structure enables self-alignment and self-attachment during assembly. The geometric design of the snap fits allows the sensor holder to automatically align with the housing unit and secure itself through simple insertion, eliminating the need for complex alignment procedures or additional fastening operations.
2Reliability
If traditional sensor attachment methods are used, then the sensor can be securely attached to the housing unit, but the cost increases
Solution Approach 1:
The attachment function is integrated directly into the sensor holder structure through molded snap fits, eliminating the need for separate fastening components. This merging of functions reduces part count and assembly steps while maintaining secure attachment, thereby lowering manufacturing costs.
Solution Approach 2:
The snap fit structure uses simple, inexpensive plastic deformation to create secure attachment, replacing expensive metal fasteners or complex mechanical joints. The temporary nature of the snap fit during assembly allows for easy manufacturing and assembly while providing sufficient holding force for the sensor application.
3Reliability
If multiple snap fits are used to fix the holder body, then the attachment reliability improves, but the device complexity increases
Solution Approach 1:
Snap fits are strategically positioned at specific locations on the sensor holder where they provide maximum attachment reliability with minimum complexity. The first snap fit is positioned to press the sensor from the rear, while second snap fits are positioned to fix the holder body to the housing at multiple points, creating optimal local attachment zones.
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 a low-cost, efficient, and reliable method for attaching sensors to the housing unit, ensuring accurate contact and stable positioning while minimizing the need for additional components, thus reducing overall costs and simplifying the installation process.
Implementation Method 1
a first snap fit that presses the sensor from the rear of the sensor, and two second snap fits that fix the holder body to a housing at at least two points
Data Source
AI summary
A sensor holder includes a holder body that accommodates a sensor, a first snap fit that presses the sensor from a rear surface of the sensor, and two second snap fits that fix the holder body to the housing at at least two points.