Camera Module Rotational Positioning Stability via Elastic Notch Mechanism
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Solution Overview
Problem
Rotational camera modules in electronic devices often experience poor operability due to unexpected shifts caused by external forces, such as device shaking, which exceeds the rotational friction, leading to instability and reduced usability.
Innovation Solution
A camera module design featuring a rotatable camera component with an elastic positioning member and notches, where the camera component can be rotated between closed and open positions, using a pivotal member to drive a sliding member's movement, and an elastic positioning member abuts against notches to provide rotational friction and maintain position, enhancing stability and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera module is tightly coupled to the body through a hinge to provide rotational friction for positioning, then the camera module can be positioned at desired positions, but the camera module generates unexpected shifts when external force from shaking exceeds the rotational friction
Solution Approach 1:
The camera module is divided into a camera component and a sliding member that can move independently. The camera component rotates on the body while the sliding member moves linearly along guide rails, separating the rotational and translational movements to improve positioning stability and prevent unintended shifts.
Solution Approach 2:
A pivotal member is introduced as an intermediary mechanism connecting the camera component and the sliding member. This pivotal member converts the rotational movement of the camera component into linear movement of the sliding member, enabling precise control and stable positioning without direct hinge coupling between the camera module and body.
2Reliability
If the camera module uses rotational friction for positioning, then the camera module can be held at desired positions, but the friction is insufficient to prevent shifts caused by external shaking forces
Solution Approach 1:
The insufficient rotational friction mechanism is replaced with a guide rail and sliding member system that provides linear movement constraints. This mechanical substitution offers stronger positional stability by constraining the sliding member to move only along the guide rails, preventing unintended shifts caused by external shaking forces.
Solution Approach 2:
The system transitions from relying on static rotational friction to a dynamic mechanism where the camera component's rotation drives the sliding member's linear movement through the pivotal member. This dynamic coupling ensures that the sliding member moves intentionally with user input while remaining stable against external disturbances.
3Ease of operation
If the camera component is rotatably disposed on the body through a hinge, then the camera module can rotate between closed and open positions, but the hinge coupling causes unexpected shifts when external force exceeds rotational friction
Solution Approach 1:
The camera module is segmented into a camera component that rotates and a sliding member that translates. This segmentation allows the camera component to rotate freely for operation while the sliding member maintains stable positioning through the guide rails, separating the rotational operation function from the positioning stability requirement.
Solution Approach 2:
The pivotal member serves as an intermediary that decouples the rotational movement of the camera component from the positioning of the sliding member. This intermediary mechanism allows the camera component to rotate between closed and open positions for operational flexibility while the sliding member remains stably positioned along the guide rails.
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 camera module achieves improved operability by providing a clear pause at closed and open positions, ensuring the camera is only activated when intended, thus enhancing privacy protection and camera functionality while preventing unintended activation.
Implementation Method 1
the elastic positioning member abuts against the end portion of the sliding member... to provide rotational friction in order for the camera module to be positioned at a desired position
Implementation Method 2
at least one elastic positioning member... The elastic positioning member abuts against the end portion of the sliding member
Data Source
AI summary
A camera module including a camera component, a sliding member and a pivotal member is provided. The camera component is rotatably disposed on a body and includes a lens and at least one elastic positioning member. The sliding member is slidably disposed on the body and provided with at least two notches. The pivotal member is disposed on the body and connected with the camera component and the sliding member. The camera component is rotated between a closed position and an open position by the pivotal member and brings the sliding member to move. An electronic device including the camera module is also provided.