Motor-Driven Camera Extension Mechanism for Full-Screen Phones
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Solution Overview
Problem
Existing mobile phone camera extension-and-retraction devices are manually driven, preventing automatic extension and retraction, which is impractical for full-screen mobile phones with limited space and enhanced photography functions.
Innovation Solution
A mobile phone camera extension-and-retraction device comprising a driving unit, reversing gear mechanism, connecting drive mechanism, and control module, where the driving unit is electrically connected to the control module to rotate forwardly or reversely, utilizing planetary pinions and a rack member to achieve automatic extension and retraction of the camera.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual driving mechanism is used for camera extension and retraction, then the device structure is simple, but automatic extension and retraction cannot be achieved
Solution Approach 1:
The patent replaces the traditional manual mechanical driving mechanism with an electric motor-driven system. The driving unit includes a motor that can be controlled to rotate in forward and reverse directions, automatically driving the camera module to extend and retract without manual intervention. This substitution of manual operation with an automated motor system directly resolves the contradiction by achieving automatic extension and retraction while maintaining reasonable device complexity through efficient mechanical transmission design.
Solution Approach 2:
The camera extension and retraction system is designed to operate autonomously through the control module that automatically controls the driving unit based on shooting requirements. The system serves itself by integrating the motor, transmission mechanism, and control logic into a unified automated assembly that requires no external manual operation, thereby achieving self-service functionality for camera deployment and retraction.
2Adaptability or versatility
If camera size is increased to enhance photographing and video functions, then photographing function is improved, but the camera cannot continue to shrink and fits in limited mobile phone space
Solution Approach 1:
The patent transitions the camera module from a two-dimensional planar layout to a three-dimensional extended structure. By enabling the camera to extend outward from the mobile phone body along the thickness dimension, the design provides sufficient space for a larger camera module with enhanced photography and video functions while maintaining a compact phone body. This dimensional change allows the camera to occupy additional space outside the phone's main body without increasing the phone's footprint area.
Solution Approach 2:
The camera module is designed with a nested structure that allows it to be retracted into the mobile phone body when not in use. The extendable camera contains internal components arranged in a compact nested configuration, enabling the camera to fit within the limited space of the phone body. When extension is required, the nested structure unfolds or extends outward, providing access to the larger camera module for enhanced photography functions.
3Area of stationary object
If full-screen mobile phone design is adopted to improve screen occupation ratio, then screen occupation ratio is improved, but width space for camera installation is reduced
Solution Approach 1:
The patent resolves the space conflict by moving the camera module from the horizontal width dimension to the vertical thickness dimension. The extendable camera is positioned to extend along the thickness direction of the mobile phone, perpendicular to the screen plane. This dimensional reorientation allows the full-screen design to maintain maximum screen occupation ratio while the camera module utilizes the thickness dimension for its operational space, eliminating the need for horizontal width space that would otherwise be required.
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 device enables the mobile phone camera to extend and retract automatically, enhancing photography and video functions by providing uniform and stable movement, making the camera operation more practical and convenient.
Implementation Method 1
the driving unit is electrically connected with the control module and the control module can control the driving unit to rotate forwardly or reversely
Implementation Method 2
the first planetary pinion engages with the second drive gear and meshes to drive such that the rack member extends relative to the shell when the driving unit drives the primary gear forwardly, the second planetary pinion engages with the second drive gear and meshes to drive such that the rack member retracts relative to the shell when the driving unit drives the primary gear reversely
Data Source
AI summary
A mobile phone camera extension-and-retraction device (100) and a mobile phone, wherein, the mobile phone camera extension-and-retraction device (100) comprises a driving unit (1), a reversing gear mechanism (2), a connecting drive mechanism (3), a control module and a shell (4), the driving unit (1) is controlled to rotate forwardly or reversely by the control module, thereby driving the first planetary pinion (22) or the second planetary pinion (23) of the reversing gear mechanism (2) to mesh with the second drive gear (31) of the connecting drive mechanism (3), and driving the rack member (32) for straightly reciprocating movement, such that the mobile phone camera fixedly connected to the rack member (32) extends or retracts automatically.