Battery Protective Cover With Auto-Closing High-Voltage Shield
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Solution Overview
Problem
The risk of electric shock from forgetting to close the protective cover over high-voltage lead-out members in batteries is not adequately addressed by existing designs, leading to potential safety hazards.
Innovation Solution
A protective cover with a first and second cover, where the second cover is rotatably connected to the first cover and equipped with a cover closing mechanism, including an elastic member like a spring or connecting pieces, that automatically returns to a closed position after the external force is removed, ensuring the cover remains closed even if the operator forgets to do so.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the protective cover is designed to be manually opened and closed, then the ease of operation is improved, but the reliability deteriorates due to human forgetfulness
Solution Approach 1:
The cover closing mechanism enables the cover to automatically return to its closed position without human intervention. The elastic member stores potential energy when the cover is opened and automatically converts it to kinetic energy to drive the cover back to the closed position, making the system self-servicing and eliminating reliance on human memory
Solution Approach 2:
The elastic member is pre-loaded with potential energy in the closed position. When the cover is opened, this pre-stored energy is released to automatically drive the cover back to the closed position, performing the closing action in advance before human forgetfulness could cause a safety issue
2Reliability
If an automatic closing mechanism is added to ensure safety, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The elastic member serves dual functions: it acts as both the energy storage element and the driving mechanism for automatic cover closure. This self-service approach eliminates the need for separate motors, sensors, or control systems, thereby maintaining simplicity while achieving automatic closing
Solution Approach 2:
The complex electronic control systems, motors, and sensors commonly found in automatic closing mechanisms are extracted and replaced with a simple mechanical elastic member that provides automatic closing through pure mechanical energy storage and release
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 automatic closing mechanism reduces the risk of electric shock by ensuring the cover remains closed, enhancing safety and simplifying the assembly process with a cost-effective, simple structure.
Implementation Method 1
an elastic member connected to the first cover and the second cover, and an elastic restoring force of the elastic member drives the second cover to rotate in the second direction of rotation after the external force for opening the second cover is removed
Data Source
AI summary
A protective cover may comprise: a first cover configured to be fixed to a frame of a battery, the first cover being provided with an accommodating cavity for accommodating a high-voltage lead-out structure, and the accommodating cavity having an opening for exposing the high-voltage lead-out structure; a second cover rotatably arranged on the first cover and opening and respectively closing the opening when rotated relative to the first cover in a first direction of rotation and a second direction of rotation; and a cover closing structure connected to the first cover and the second cover, and causing the second cover to rotate in the second direction of rotation after the second cover is opened and an external force for opening the second cover is removed.