Retractable Camera Module Lens Assembly for UAV Protection
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face challenges in protecting their camera lenses from damage due to high-speed flight, as existing camera modules do not effectively retract or adjust lens positions to prevent scratches during non-use or landing.
Innovation Solution
A camera module with a mounting frame, lens assembly, and driving mechanism that includes a guide assembly, transmission assembly, and driving part, allowing multiple lens modules to move back and forth along a guide assembly, enabling them to protrude or retract from the UAV body, thus protecting the lenses and allowing for compact design and adjustable positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lens is placed outside the UAV for convenience of image acquisition, then the image acquisition capability is improved, but the lens is easily damaged due to high-speed flight
Solution Approach 1:
The lens module is designed to be movable rather than fixed, allowing it to dynamically change position between protruding (for image acquisition) and retracted (for protection). The driving mechanism enables the lens to move along the guide assembly, transforming it from a static component to a dynamic one that adapts its position based on operational requirements.
Solution Approach 2:
The lens module can be retracted into the UAV body in advance before high-speed flight or potential damage scenarios occur. This preliminary protective action ensures the lens is already in a safe position before damage can occur, rather than reacting after damage happens.
2Reliability
If the lens module is made retractable to protect it, then the lens protection is improved, but the device structure becomes more complex
Solution Approach 1:
The driving mechanism integrates multiple components (driving part, transmission assembly, guide assembly) into a unified system that works together to control the lens module. The transmission assembly connects the driving part to the lens module through the guide assembly, merging these elements into a coordinated mechanism that achieves protection functionality without requiring completely separate systems.
Solution Approach 2:
The driving mechanism serves multiple functions: it enables the lens module to protrude for image acquisition, retract for protection, and move along the guide assembly for positioning. This multi-functional design reduces the need for separate mechanisms for each function, thereby limiting the increase in overall structural complexity.
3Reliability
If multiple lens modules are driven to move simultaneously for adjustment and protection, then the lens protection and design flexibility are improved, but the transmission mechanism becomes more complex
Solution Approach 1:
The transmission assembly is designed to handle multiple lens modules through a unified mechanism. The same transmission components (threaded rods, speed change structure) serve all lens modules, allowing simultaneous control of multiple modules without requiring entirely separate transmission systems for each one.
Solution Approach 2:
The speed change structure adjusts the rotation speed of the threaded rods to control the movement speed of lens modules. By changing the speed parameter through the gear set, the system can coordinate the movement of multiple lens modules at different speeds or synchronize them, providing flexible control without increasing the fundamental mechanism complexity.
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 allows for simultaneous adjustment and protection of multiple lens modules, reducing the risk of damage during high-speed flight and non-use, enabling more design flexibility and compact device sizes while maintaining image acquisition capabilities.
Implementation Method 1
The transmission assembly includes: a first threaded rod, a second threaded rod and a speed change structure. The first threaded rod is rotatably disposed on the mounting frame, and the first threaded rod is threadedly connected with a first lens module.
Implementation Method 2
The speed change structure includes an output wheel and a speed change gear set, the two ends of the speed change gear set are connected with the driving part and the output wheel respectively, and the two ends of the output wheel are connected with the first threaded rod and the second threaded rod respectively.
Data Source
AI summary
Embodiments of the present invention relate to the technical field of unmanned aerial vehicles, and particularly disclose a camera module and an unmanned aerial vehicle. The camera module comprises: a mounting frame; a lens assembly movably arranged on the mounting frame, the lens assembly comprising at least two lens modules; a driving mechanism arranged on the mounting frame, the driving mechanism comprising a guide assembly, a transmission assembly, and a driving part, the guide assembly being arranged on the mounting frame and the two lens modules being slidably fitted with the guide assembly; the transmission assembly is in transmission connection with the two lens modules, respectively; the driving part is in transmission connection with the transmission assembly, and the driving part is used for driving the two lens modules to move back and forth along the guide assembly, respectively.