Camera Module Housing Air Gap Thermal Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera modules face challenges in easy coupling between multiple housings and heat transfer during assembly, which can damage internal components.
Innovation Solution
A camera module design featuring a front and rear housing coupled by welding, with an air gap structure to prevent heat transfer and eliminate the need for screws and sealing members, using a coupling part with specific extension portions and regions to create an air gap for insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional screw coupling and sealing members are used to join front and rear housings, then coupling reliability and waterproofing are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the coupling function and sealing function into a single integrated housing structure. The front housing and rear housing are directly coupled through precision-machined mating surfaces with integrated sealing grooves, eliminating the need for separate sealing members and screws. This integration maintains reliability while reducing component count and assembly complexity.
Solution Approach 2:
The housing structure is designed to be self-sealing through precision-machined mating surfaces and integrated sealing grooves that automatically engage during assembly. The coupling surfaces themselves provide the sealing function without requiring additional sealing members, making the structure self-sufficient and reducing overall complexity.
2Ease of manufacture
If welding is used to join front and rear housings, then manufacturing cost and assembly process are simplified, but heat transfer to internal components occurs
Solution Approach 1:
The patent introduces an air gap as an intermediary thermal insulation layer between the welding zone and the substrate. This air gap acts as a thermal barrier, preventing direct heat transfer from the welded housing to the sensitive internal components while allowing the welding process to proceed normally.
Solution Approach 2:
The housing structure is segmented to create a thermal barrier zone (air gap) that separates the heat-generating welding area from the heat-sensitive substrate area. This segmentation allows the welding process to occur without compromising the thermal environment of internal components.
3Object-affected harmful factors
If air gap structure is introduced to prevent heat transfer, then thermal protection of internal components is improved, but manufacturing precision requirements increase
Solution Approach 1:
The air gap structure is pre-designed into the housing geometry during the molding or machining process, rather than being created through complex post-assembly adjustments. This preliminary incorporation of the thermal barrier simplifies the manufacturing process and reduces the need for high-precision assembly operations.
Solution Approach 2:
The patent optimizes the air gap dimensions to achieve effective thermal insulation while maintaining reasonable manufacturing tolerances. By carefully selecting the air gap thickness and positioning, the design achieves thermal protection without requiring excessively tight manufacturing precision.
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
This design simplifies the assembly process, reduces manufacturing costs, and prevents heat transfer to internal components, enhancing the reliability and efficiency of the camera module.
Implementation Method 1
an air gap structure to prevent heat transfer and eliminate the need for screws and sealing members
Data Source
Figure 1
Figure 2
Figure 3
AI summary
This camera module comprises: a lens holder; a front housing coupled to the lens holder; a rear housing coupled to the front housing; a substrate disposed in the rear housing; and a coupling part disposed between the front housing and the rear housing, wherein; the front housing comprises a first body and a first extension portion protruding from the first body toward the rear housing; the rear housing comprises a second body and a second extension portion protruding from the second body toward the front housing; a first region of the coupling part is disposed between the first body and the second extension portion and the first body and the second extension portion are arranged to be spaced apart from each other.