Camera Module Heating Member Layout for Lens Condensation Control
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Solution Overview
Problem
Condensation and frost formation on camera lenses due to temperature fluctuations in vehicles can lead to unsatisfactory image recordings and product failure.
Innovation Solution
A heating device and camera module design that includes a substrate, connection terminal, and a heating member with specific configurations to inhibit condensation, utilizing a humidity control unit with desiccants and heaters to maintain optimal temperature and humidity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera housing is sealed to prevent contamination, then protection against foreign substances is improved, but temperature and humidity control becomes difficult leading to condensation
Solution Approach 1:
A desiccant is introduced as an intermediary substance inside the sealed housing to absorb excess moisture. The desiccant acts as a mediator between the sealed environment and the lens, preventing condensation by controlling humidity levels without compromising the seal integrity.
Solution Approach 2:
The invention changes the humidity parameter inside the housing by introducing a desiccant that dynamically adjusts moisture levels. This parameter control prevents the temperature-humidity conditions that lead to condensation while maintaining the sealed structure.
2Object-affected harmful factors
If heating elements are added to prevent condensation, then protection against frost is improved, but device complexity increases
Solution Approach 1:
The invention uses a desiccant that can be replaced rather than a complex heating system. The desiccant is a simple, low-cost component that absorbs moisture until saturated, then can be replaced, avoiding the need for complex heating elements, thermostats, and control systems.
Solution Approach 2:
The invention extracts the moisture control function from complex active heating systems and implements it through a passive desiccant material. This removes the need for power-consuming heating elements and their associated control circuitry, simplifying the overall device.
3Reliability
If the housing is completely sealed, then contamination protection is improved, but moisture accumulation occurs leading to condensation
Solution Approach 1:
The desiccant serves as an intermediary that manages moisture within the sealed environment. It allows the housing to remain completely sealed for contamination protection while the desiccant actively absorbs and controls moisture levels, preventing accumulation and condensation.
Solution Approach 2:
The desiccant is designed to be replaced periodically after absorbing moisture. This allows the sealed housing to maintain integrity while the moisture management function is renewed by discarding the saturated desiccant and installing a fresh one, preventing long-term moisture accumulation.
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
Prevents condensation and frost formation on lenses, ensuring consistent image quality and preventing product failure by maintaining suitable environmental conditions.
Implementation Method 1
a heating member electrically connected to the connection terminal
Data Source
AI summary
The present embodiment relates to a heating device comprising: a substrate; a connection terminal electrically connected to the substrate; and a heating member electrically connected to the connection terminal, wherein the connection terminal includes a first region including an inner portion and an outer portion, a third region electrically connected to the substrate, and a second region disposed between the first region and the third region, and the heating member is disposed between the inner portion and the outer portion of the connection terminal.