Pop-Up Camera Assembly With Adaptive Push-Rod Transmission
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Solution Overview
Problem
Conventional pop-up cameras in electronic devices are prone to tilting and getting stuck due to unbalanced loads, which affects their smooth operation and raises concerns about reliability and user experience.
Innovation Solution
A camera assembly with a transmission mechanism featuring a transmission push rod and elastic arms that adjust the working attitude to counter tilting, combined with reverse driving surfaces and elastic connections to manage forces, ensuring smooth and reliable positioning of the camera module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unilaterally-driven design is used in the pop-up camera, then the structure is simple, but the camera is prone to tilting under unbalanced load and may get stuck in raising/lowering action
Solution Approach 1:
The patent introduces a counterbalancing mechanism with a second driving motor that applies opposing force to compensate for unbalanced loads. This counterweight principle prevents tilting of the camera carrier by balancing the forces acting on the system, thereby maintaining stability while keeping the overall structure relatively simple.
Solution Approach 2:
The patent employs a push rod with a transmission portion as an intermediary element between the driving mechanism and the camera carrier. This transmission portion with adjustable working attitude acts as a mediator that can accommodate force imbalances and prevent direct transmission of tilting forces to the camera, thus improving reliability without significantly complicating the structure.
2Power
If the transmission push rod is rigidly connected to the camera carrier, then the force transmission is efficient, but the camera carrier may tilt when the push rod deviates from the design position
Solution Approach 1:
The patent makes the transmission portion of the push rod dynamically adjustable rather than rigidly fixed. The working attitude of the transmission portion can be changed to adapt when the push rod deviates from the design position, allowing the system to maintain both force transmission efficiency and stability under varying conditions.
Solution Approach 2:
The patent changes the geometric parameters of the transmission mechanism by adjusting the working attitude of the transmission portion. This parameter adjustment allows the push rod to compensate for position deviations and maintain proper force transmission while preventing camera carrier tilting.
3Measurement precision
If the camera carrier is constrained to move only in the raising/lowering direction, then the movement control is precise, but the mechanism cannot accommodate manufacturing or assembly errors
Solution Approach 1:
The patent introduces dynamic adjustment capability to the transmission mechanism, allowing it to adapt its working attitude within certain ranges. This dynamic flexibility enables the system to accommodate manufacturing or assembly errors while maintaining precise positioning control through active adjustment rather than rigid constraint.
Solution Approach 2:
The transmission mechanism has the ability to self-adjust its working attitude to compensate for deviations. This self-service capability allows the system to automatically adapt to manufacturing tolerances and assembly variations without requiring external intervention, thereby maintaining positioning precision despite initial errors.
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 effectively prevents tilting and sticking of the camera, enhancing operational reliability and user experience by allowing smooth switching between retracted and protruding positions while minimizing mechanical stress on components.
Implementation Method 1
the transmission portion that presses against the transmission surface by using the transmission end is capable of changing a working attitude relative to the body of the transmission push rod
Data Source
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AI summary
An electronic device and a camera assembly are provided. Embodiments of this application may be applied to specific function implementation of a pop-up camera of a smart television, a notebook computer, or a display. A transmission push rod in transmission connection with a camera carrier is included. The transmission push rod is provided with a transmission portion capable of adjusting a working attitude. When the transmission push rod generates a tilting trend relative to the camera carrier, the transmission portion that presses against a transmission surface by using a transmission end is capable of changing a working attitude relative to a body of the transmission push rod, and the transmission end keeps in line contact with the transmission surface. Therefore, for the tilting phenomenon, a self-adaptive capability is provided, so that a tilting trend of the camera carrier generated with the transmission push rod can be avoided, and a phenomenon of getting stuck is avoided.