Camera Module Heating Element Between Lens Barrels
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Solution Overview
Problem
Vehicle camera systems face image deterioration due to temperature changes, and installing additional heaters is not advantageous due to size and shape restrictions, which affect air resistance and appearance.
Innovation Solution
A camera module design that includes a lens module with a heating element positioned between inner and outer barrels, connected to a substrate via a power connection line, allowing for efficient heat transfer without altering the camera's size or shape, using a heating element formed from materials like ceramic or positive temperature coefficient (PTC) materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an additional heater is installed in the camera system to prevent image deterioration at low temperatures, then heating performance is improved, but the camera's size and shape are altered
Solution Approach 1:
The heating element is merged with the existing lens module structure by positioning it between the inner barrel and outer barrel, combining the heating function with the optical module rather than adding a separate heater component
Solution Approach 2:
The heating element is nested within the lens module's barrel structure, fitting between the inner and outer barrels in the optical axis direction, utilizing the existing spatial configuration to accommodate the heating function
2Temperature
If an additional heater is installed in the camera system to prevent image deterioration, then heating performance is improved, but device complexity increases
Solution Approach 1:
The heating element is integrated with the lens module's existing structural components (inner barrel, outer barrel, holder), merging the heating function into the optical module rather than adding independent heating system components
Solution Approach 2:
The lens module is designed to serve multiple functions: optical imaging through the lenses and heating through the heating element positioned between the barrels, making the optical module a multi-functional component
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 improves heating performance while maintaining the camera's appearance and size, ensuring efficient heat transfer and easy manufacturing and assembly, addressing the issue of image deterioration caused by temperature changes.
Implementation Method 1
a lens module which includes an inner barrel, an outer barrel, a heating element disposed between the inner barrel and the outer barrel
Data Source
AI summary
A camera module includes an upper housing coupled to a lower housing to form an inner space, a lens module provided in the inner space and including a heating element, and a substrate configured to supply power to the heating element, wherein the lens module includes an inner barrel comprising one or more lenses, an outer barrel which is coupled to a portion of the inner barrel in an optical axis direction, and a holder in which the outer barrel is fixed, wherein the substrate is fixed to a portion of the holder, wherein the heating element is disposed between the inner barrel and the outer barrel, and is connected to the substrate by a power connection line, and wherein the power connection line is connected to the substrate through a coupling hole in the holder.