Back Cover Ejection Structure for Tool-Free Glass Cover Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for removing broken glass back covers from electronic devices require specialized tools, increasing operational difficulty due to the need for heating and mechanical separation.
Innovation Solution
A back cover ejection structure comprising a housing, driving member, elastic member, cover plate, moving plate, rotating shaft, and rotating cover, which allows for mechanical ejection of the back cover from the middle frame using a gear and rack mechanism, eliminating the need for external heating and specialized tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating device and suction device are used to remove broken back cover, then the back cover can be separated from top cover, but the operation becomes complex and requires special tools
Solution Approach 1:
The patent extracts the back cover removal function from complex external tools (heating device, suction device) and integrates it into a simple mechanical ejection mechanism within the charging case. The elastic member and movable plate work together to provide the necessary separation force directly at the back cover, eliminating the need for specialized external equipment.
Solution Approach 2:
The elastic member automatically provides the ejection force when the movable plate moves, creating a self-service mechanism that doesn't require external power sources or complex control systems. The mechanical structure itself generates the necessary force through the elastic deformation and recovery of the elastic member.
2Ease of operation
If heating device is used to reduce adhesion force, then back cover can be removed, but special tools and increased operational difficulty are required
Solution Approach 1:
The patent replaces the thermal field (heating device) with a mechanical field (elastic member and movable plate). Instead of using heat to reduce adhesion force, the mechanical ejection mechanism directly applies physical force to separate the back cover, simplifying the tool requirements and improving ease of operation.
Solution Approach 2:
The movable plate acts as an intermediary between the user's manual operation and the back cover. By moving the movable plate, the user indirectly activates the elastic member to provide the ejection force, making the operation easier and more intuitive while avoiding the need for complex heating equipment.
3Extent of automation
If manual pressing of first button is used, then driving member moves to eject back cover, but requires user interaction
Solution Approach 1:
The patent uses the dynamic interaction between the first button and the driving member to convert simple user pressing action into automated ejection motion. The driving member translates the button pressing motion into the movement of the movable plate, which in turn activates the elastic member to eject the back cover automatically.
Solution Approach 2:
The first button is pre-positioned to directly engage with the driving member, so that when the user presses the button, the ejection sequence is automatically initiated without requiring additional steps. The mechanical linkage is pre-configured to ensure that button pressing immediately triggers the back cover ejection process.
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
Facilitates easy and tool-free replacement of the back cover by utilizing a mechanical ejection mechanism that rotates the cover plate to disengage the back cover from the middle frame, simplifying the process and reducing the risk of further damage.
Implementation Method 1
an elastic member 30, a cover plate 40, and a moving plate 50 are disposed in the receiving space 11
Implementation Method 2
utilizing a mechanical ejection mechanism that rotates the cover plate to disengage the back cover from the middle frame
Implementation Method 3
driving member 20, an elastic member 30, a cover plate 40, and a moving plate 50 are disposed in the receiving space 11
Implementation Method 4
rotating cover 70, which can eject the back cover 210 from the middle frame 220
Data Source
AI summary
A back cover ejection structure is applied in an electronic device. The electronic device includes a back cover and a middle frame, the back cover ejection structure can eject the back cover from the middle frame. The back cover ejection structure includes a housing, a moving plate, and a rotating cover. The moving plate is received in the housing and can move in a first direction. The moving plate includes a plate body and a first groove defined in the plate body. The first groove includes a first section, the first section inclined with the first direction. The rotating cover is rotatably connected to the housing. The rotating cover includes a sliding rod slidably received in the first section. The sliding rod can push the rotating cover to rotate when sliding in the first section, causing the rotating cover to eject the back cover from the middle frame.