Battery Pack Output Terminal Elevation for Short-Circuit Prevention
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Solution Overview
Problem
Existing battery packs with exposed output terminals are prone to short-circuits, and while encasing the terminal within a window on the case reduces this risk, it is not sufficient, as flexible objects can still cause short-circuits when the pack is placed with the window-facing down.
Innovation Solution
The battery pack design features a different-level portion on the case with a space between this portion and the mount reference plane, positioning the output terminal in a way that it is directed outside the case, reducing contact with external surfaces and allowing for absorption of projecting circuit board components, thus enhancing short-circuit prevention and flexibility in storage and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the output terminal is exposed at the exterior surface of the case, then ease of connection is improved, but the risk of short-circuit increases
Solution Approach 1:
The output terminal is provided on a different-level portion that protrudes from the case surface, maintaining exposure for easy connection while elevating it above the mounting surface to prevent short-circuits. This creates a safe distance from external surfaces while preserving accessibility.
2Device complexity
If the output terminal is positioned close to the window on the case, then structural compactness is improved, but vulnerability to short-circuits from flexible objects increases
Solution Approach 1:
The patent resolves the conflict between compactness and vulnerability by moving the terminal to a different level (vertical dimension) rather than increasing horizontal distance. The different-level portion integrates into the case structure, maintaining compactness while the vertical space prevents flexible objects from reaching the terminal.
3Reliability
If the battery pack is designed with a different-level portion for the output terminal, then short-circuit prevention is improved, but the case structure complexity increases
Solution Approach 1:
The different-level portion is integrated into the case structure as a unified component rather than a separate attachment. The case and different-level portion work together as a single structural unit, minimizing additional complexity while achieving the short-circuit prevention function.
Data Source
AI summary
The present invention provides a battery pack which is capable of enhancing a short-circuit prevention effect, and electronic equipment using this battery pack. The battery pack 31 has a battery built in the case 32 and an output terminal 47 which is electrically connected to the battery and provided in such a manner as directed towards the outside of the case 32. The battery pack 31 has an output section 34 that is provided in orthogonal to a virtual plane including a mount reference plane for the electronic equipment (under surface 33B) of the case 32, with a space between the virtual plane and the output section 34. The output section 34 is provided with an output terminal 47.