Battery Protection Board Layout for Shorter Fast-Charging Paths
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Solution Overview
Problem
Existing electronic devices experience increased heat and reduced charging efficiency due to a long charging path, which can lead to safety issues such as fires and battery explosions during rapid charging.
Innovation Solution
The electronic device design includes a housing with a power interface, a battery with a protection board and cell, and a circuit board assembly with first and second boards and flexible circuit boards, arranged to create a short charging path and reduce heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the charging path is arranged conventionally (power interface to second board to first board to battery through flexible circuit boards), then the device structure is simple, but the charging path becomes long causing increased heat and reduced charging efficiency
Solution Approach 1:
The patent transitions from a planar arrangement where the battery is at the bottom to a three-dimensional arrangement where the battery is positioned at the side of the device. This spatial reconfiguration allows the power interface to be directly connected to the battery through the side, eliminating the need for current to traverse through multiple flexible circuit boards and reducing the overall current path length, thereby decreasing heat generation during charging
2Speed
If the charging path is long with large current flow, then rapid charging can be implemented, but current loss increases causing safety issues such as fires and battery explosions
Solution Approach 1:
The patent extracts the battery from its conventional bottom position and relocates it to the side of the device, adjacent to the power interface. This extraction and repositioning allows the charging circuit to be directly connected to the battery without passing through intermediate components, shortening the current path and reducing current loss, thereby maintaining fast charging capability while improving safety
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
This configuration results in a shorter charging path, reduced heat during charging, and enhanced safety, improving the overall charging efficiency and user experience.
Implementation Method 1
a current may arrive a second board first from a power interface, then be transported from the second board to a first board through a flexible circuit board, and further be transported from the first board to a battery through another flexible circuit board
Data Source
AI summary
An electronic device, including: a housing, a battery, and a circuit board assembly. The housing is provided with a power interface. The battery includes a battery protection board and a cell. The circuit board assembly is disposed in the housing and is electrically connected to the power interface. The circuit board assembly includes a first board, a second board, a first flexible circuit board, and a second flexible circuit board. The first flexible circuit board is connected to the battery protection board and the first board, and the second flexible circuit board is connected to the battery protection board and the second board.