Camera Module Heat Emission Outlet Design
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Solution Overview
Problem
Conventional camera modules face issues with deformation and defects due to high temperature heat during manufacturing, particularly in the bonding process of the holder and PCB, leading to increased costs and reduced performance, as existing radiating methods are costly and ineffective in preventing heat discharge.
Innovation Solution
A camera module design featuring a housing with a heat emission outlet of upper-wide and bottom-narrow shape, knurled external walls for increased air contact, and inwardly depressed filter attachment units with guide walls and fume emission outlets to enhance heat radiation and adhesive strength without using high-priced materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional adhesive coating method is used on three surfaces of filter attachment, then manufacturing process is simple, but attachment force of filter decreases and fume discharge is blocked
Solution Approach 1:
The patent transitions from coating adhesive on three surfaces (2D plane) to coating on four surfaces including the bottom surface (3D expansion), thereby increasing the total adhesive area and improving filter attachment force without complicating the manufacturing process
2Manufacturing precision
If high temperature bonding process is used for holder and PCB, then manufacturing precision is improved, but heat deformation and defects increase
Solution Approach 1:
The patent extracts the heat accumulation problem by introducing a dedicated heat emission outlet structure that channels and discharges high temperature heat from the bonding process, allowing high temperature bonding to proceed while preventing heat-induced deformation and defects
Solution Approach 2:
The heat emission outlet acts as an intermediary structure between the heat source (bonding process) and the surrounding environment, facilitating controlled heat discharge and protecting the camera module components from thermal damage
3Loss of energy
If plastic material with high thermal conductivity is used, then heat radiation is improved, but part cost increases
Solution Approach 1:
The patent segments the heat management function into a dedicated heat emission outlet structure rather than relying on expensive high thermal conductivity plastic materials, achieving effective heat radiation through geometric design instead of material substitution
Solution Approach 2:
The patent uses standard plastic materials with ordinary thermal conductivity combined with a strategically designed heat emission outlet, replacing the need for expensive high thermal conductivity materials while maintaining effective heat radiation performance
4Reliability
If fume discharge outlet is narrowed to prevent foreign objects, then device reliability is improved, but heat discharge and fume discharge are blocked
Solution Approach 1:
The patent segments the outlet functions by providing separate dedicated outlets: one for fume discharge and another for heat emission, allowing each outlet to be optimized for its specific function without compromise
Solution Approach 2:
The patent adds a vertical dimension to heat emission by creating an upward-opening heat emission outlet on the lens insertion hole upper surface, enabling heat to escape in a different direction from the horizontal fume outlet, thereby resolving the conflict between narrow opening security and effective heat discharge
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 design effectively enhances heat radiation and adhesive strength, preventing deformation and defects while maintaining cost-effectiveness, allowing for improved performance in camera modules without increasing part costs.
Implementation Method 1
a heat emission outlet formed on an upper surface of the lens insertion hole in an upper-wide/bottom-narrow shape
Implementation Method 2
knurled external walls for increased air contact
Data Source
AI summary
The present invention relates to a camera module mounted with an external look-forming holder improved in heat emission function, the camera module including: a housing; a lens insertion hole opened toward an upper surface of the housing for insertion of a lens; a filter attachment unit formed on a floor surface of the housing for attaching a filter; and a heat emission outlet formed on an upper surface of the lens insertion hole in an upper-wide/bottom-narrow shape, wherein a heat emission outlet is formed at an upper surface of a lens insertion hole to induce heat generated from inside of a housing to be emitted to outside along an inner side of the heat emission outlet.