Battery Cover Locking Structure to Prevent Child Opening
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Solution Overview
Problem
Conventional battery covers can be easily separated by infants and young children, posing a risk of battery swallowing accidents due to their design that allows for easy manual separation.
Innovation Solution
A safety battery cover design that includes a cover plate, a pressing plate, a locking plate, and a connecting part, where the pressing plate rotates about a virtual hinge axis to release the locking part, making it difficult for children to manually separate the cover without a tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery cover is designed with a simple fastening unit that can be easily manipulated, then the ease of operation is improved, but the safety against battery swallowing accidents deteriorates
Solution Approach 1:
The patent changes the operational parameters of the fastening unit by requiring simultaneous application of pressing force and rotational motion. The pressing plate must be pressed downward while rotating about a virtual hinge axis, transforming a simple linear pressing action into a combined pressing-rotating operation that exceeds children's capability while remaining manageable for adults
Solution Approach 2:
The fastening unit incorporates dynamic movement characteristics where the pressing plate rotates about a virtual hinge axis during the unlocking process. This rotational movement transforms the static pressing action into a dynamic operation that requires coordinated force application and motion control, making it difficult for children but feasible for adults
2Object-affected harmful factors
If the fastening unit requires complex manipulation with a tool, then the safety against battery swallowing accidents is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent introduces a virtual hinge axis as an intermediary mechanical element that mediates between the pressing force and the locking mechanism. This virtual hinge axis enables the pressing plate to rotate and release the locking part without requiring external tools, serving as an internal mechanical intermediary that provides tool-based operation capability while maintaining safety
Solution Approach 2:
The patent replaces a simple pressing mechanism with a more complex mechanical system involving the virtual hinge axis and rotational movement. This mechanical substitution transforms a straightforward pressing action into a coordinated pressing-rotating operation that inherently requires greater dexterity and force, achieving safety without external tools
Data Source
AI summary
According to an aspect of the present invention, a battery cover may be provided, the battery cover characterized by comprising: a cover plate which covers a battery accommodation space of a device body, a pressing plate formed to be bent downward and extend from one side of the cover plate, a locking plate forming a locking part caught on one side of the device body to fix a covering state of the cover plate and disposed to be spaced apart from and face the pressing plate, and a connecting part which connects lower ends of the pressing plate and the locking plate, wherein, when the pressing plate is pressed and manipulated, the pressing plate is rotated about a connecting portion between the pressing plate and the cover plate as a virtual hinge axis, and locking of the locking part is released by the rotation of the pressing plate.