Battery Pack Circuit Redirecting Energy to External Dissipator
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Solution Overview
Problem
Conventional battery packs fail to prevent burnout due to internal short circuits, which can occur from manufacturing defects or external impacts, leading to energy concentration and potential device failure, despite existing safety measures like thermal fuses.
Innovation Solution
A circuit and battery pack design that redirects power from the battery pack to a power dissipation element outside the pack when an abnormal state is detected, utilizing a detecting circuit to control switches and divert energy away from the pack, thereby reducing heat generation and preventing burnout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power is supplied to power dissipation element during abnormal state, then burnout is prevented, but energy loss increases
Solution Approach 1:
The patent converts the harmful effect of internal short circuit energy into a beneficial protective action. The energy that would normally cause burnout is redirected to the power dissipation element, where it is safely dissipated as heat. The harmful energy is thus transformed into a controlled protective mechanism that prevents catastrophic failure.
Solution Approach 2:
The system prepares for potential energy release by having the power dissipation element ready to absorb excess energy. The switch mechanism is pre-configured to redirect current to this cushioning element when abnormal conditions are detected, providing beforehand protection against energy concentration that could lead to burnout.
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
Effectively prevents or reduces battery pack burnout by dissipating energy externally through a power dissipation element, ensuring safer operation and extended device lifespan.
Implementation Method 1
a power dissipation element (450) that is disposed outside the battery pack (400)... supplying power output from the battery pack (400) to the power dissipation element (450)... dissipating energy externally
Data Source
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AI summary
A portable communication device, according to various embodiments of the present disclosure, may include: a battery pack (400); a power dissipation element (450) disposed outside the battery pack; a detecting circuit (440) configured to detect the state of the battery pack; and at least one of first switches (434) that are connected to the battery pack and the detecting circuit, wherein the detecting circuit is configured to control at least one of the first switches to: electrically disconnect the power dissipation element from the battery pack when the state of the battery pack does not satisfy a specified condition; and electrically connect the power dissipation element to the battery pack when the state of the battery pack satisfies the specified condition.