Camera Module Cover Mechanism for Sensor Maintenance
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Solution Overview
Problem
Traditional camera module packaging structures are difficult to disassemble, making it time-consuming to adjust or replace the image sensing device, and prone to dust and particle contamination, which increases production costs.
Innovation Solution
A camera module design featuring a holder with a drawer-like space created by a cover that can open and close, allowing easy insertion and removal of the image sensing and processing device, either through a hinge mechanism or by fixing it on a cover that can be placed over the holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holder is fixed on the PCB and the image sensing device is permanently installed inside, then the packaging structure is stable and secure, but it becomes difficult to disassemble and time-consuming to replace the image sensing device
Solution Approach 1:
The packaging structure is divided into separable components: the holder (100) remains fixed on the PCB for stability, while the cover (106) and image sensing device are made into a removable assembly. This segmentation allows the holder to provide stable mounting while the cover assembly can be easily detached for device replacement, resolving the contradiction between packaging stability and replaceability.
Solution Approach 2:
The image sensing device is extracted from the permanent internal structure and placed on a removable cover assembly. This extraction allows the device to be accessed and replaced by simply removing the cover, while the main holder structure remains intact and stable on the PCB, solving both stability and replaceability requirements.
2Reliability
If the packaging structure is tightly sealed and fixed, then the internal components are protected, but dust and particles can easily fall onto the image sensing device surface and are difficult to detect
Solution Approach 1:
The cover is designed with dynamic characteristics - it can be opened and closed. When closed, it protects the image sensing device from dust and particles. When opened, it allows access for cleaning or replacement. This dynamic design resolves the contradiction between protection and contamination prevention by providing controlled access while maintaining protection during normal operation.
3Device complexity
If the image sensing device is permanently installed inside the holder, then the packaging is compact and secure, but cleaning or replacing the device requires complete disassembly which increases production costs
Solution Approach 1:
The packaging is segmented into a fixed holder portion and a removable cover portion. This segmentation maintains compactness when assembled while enabling easy access to the image sensing device for cleaning or replacement, thereby reducing production costs without sacrificing structural integrity.
Solution Approach 2:
The cover acts as an intermediary element between the external environment and the image sensing device. It provides a convenient access point for maintenance operations without requiring disassembly of the entire packaging structure, thus maintaining compactness while facilitating easy manufacturing and maintenance.
Data Source
AI summary
A camera module is provided. The camera module comprises: a holder having an upper portion, a lower portion, and a bottom; a lens member held on the upper portion of the holder; a hinge disposed on the bottom of the holder; a cover coupled to the hinge and to the bottom of the holder, the cover being allowed to open and close to cover the bottom of the holder, the cover and the lower portion of the holder forming a space; and an image sensing and processing device disposed on the cover, wherein when the cover is close, the space can accommodate the image sensing and processing device.