Camera Module Holder Assembly Waterproofing via Protrusion Bonding
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Solution Overview
Problem
Camera modules mounted outside vehicles face challenges with degraded waterproof performance due to temperature differences and moisture ingress, leading to potential damage of electronic components, and existing solutions like O-rings increase assembly complexity and risk of foreign object introduction.
Innovation Solution
A holder assembly for camera modules featuring a lens with protrusions and a waterproof member integrated into the lens holder, which reduces assembly processes and prevents moisture and foreign object entry without using O-rings, combined with a waterproof connector design that shields moisture using a metal housing and adhesive-based sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If O-rings are used for waterproofing, then waterproof function is improved, but assembly complexity increases and foreign object introduction risk increases
Solution Approach 1:
The patent removes the O-ring from the waterproofing system and replaces it with a waterproof coating applied directly to the housing interior surface. This extraction of the O-ring eliminates the gap between the O-ring and housing that allows moisture and foreign object ingress, while also simplifying the assembly process by removing the O-ring installation step.
Solution Approach 2:
The patent introduces a waterproof coating as an intermediary layer between the housing interior surface and the external environment. This coating serves as the primary barrier against moisture and foreign objects, replacing the mechanical sealing function previously performed by the O-ring.
2Adaptability or versatility
If multiple parts are assembled to manufacture camera module, then functionality is improved, but moisture entry through assembly areas increases
Solution Approach 1:
The patent merges the waterproofing function with the housing structure itself by applying the waterproof coating directly to the housing interior surface. This integration ensures that all assembly areas and potential entry points are uniformly protected without requiring separate waterproofing components at each joint or interface.
3Reliability
If O-ring is used for waterproofing, then waterproof function is improved, but foreign object introduction through gap between O-ring and housing increases
Solution Approach 1:
The patent removes the O-ring that creates a gap between the sealing element and the housing. By eliminating this gap entirely and applying a continuous waterproof coating to the housing interior, the patent prevents foreign objects from entering through the space that exists between the O-ring and housing in conventional designs.
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 enhances waterproof performance by reducing assembly complexity and preventing foreign object and moisture ingress, ensuring the camera module's reliability in vehicular environments.
Implementation Method 1
a waterproof member contained in the lens holder such that the protrusion and the lens holder are bonded
Data Source
AI summary
A holder assembly for a camera module comprises: a lens; a lens body containing the lens; a protrusion protruding from a side surface of the lens body; a lens holder containing the lens body and the protrusion; and a waterproof member contained in the lens holder such that the protrusion and the lens holder are bonded.