Segmented Battery Housing With Flexible Circuit for Thin Devices
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Solution Overview
Problem
The challenge in electronic devices is to achieve thinness and lightness while accommodating batteries, as traditional battery compartments occupy space and require complex connecting lines, hindering the efficient use of internal space.
Innovation Solution
A battery structure with multiple electrode assemblies and a flexible circuit integrated into the housing, allowing for serial or parallel connections and optimizing space utilization by matching the battery's dimensions with the device's internal layout, thereby simplifying the circuit design and enhancing space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If a separate battery compartment with regular shape is arranged in advance, then the battery can be mounted, but the space utilization rate inside the electronic device decreases and the device cannot achieve thinness and lightness
Solution Approach 1:
The battery is divided into multiple electrode assemblies (first, second, third electrode assemblies) that can be independently arranged and connected. This segmentation allows the battery to adapt to irregular spaces within the electronic device, improving space utilization while maintaining thinness.
Solution Approach 2:
The electrode assemblies are nested within the housing structure, with connecting lines routed through available spaces. The battery components are arranged to fit within the irregular accommodating space, maximizing the use of available volume without increasing device thickness.
2Reliability
If multiple connecting lines are arranged to meet requirements of voltage output, current output, sampling, and control, then the battery can function properly, but the structure becomes complex and occupies more space
Solution Approach 1:
Multiple connecting lines are merged into a single flexible circuit board that integrates multiple functions (voltage output, current output, sampling, control) into one component. This reduces the number of separate connecting lines and simplifies the overall structure while maintaining all necessary battery functions.
Solution Approach 2:
The flexible circuit board serves multiple functions simultaneously: it acts as a connecting line for voltage and current output, provides sampling capabilities, and enables control functions. This multi-functionality reduces the need for separate dedicated lines for each function, simplifying the structure.
3Reliability
If multiple connecting lines are arranged for battery functions, then the battery can operate, but the space inside the electronic device is occupied
Solution Approach 1:
Multiple connecting lines are merged into a single flexible circuit board that integrates multiple functions (voltage output, current output, sampling, control) into one component. This reduces the number of separate connecting lines and simplifies the overall structure while maintaining all necessary battery functions.
Solution Approach 2:
A flexible circuit board is used instead of rigid connecting lines, allowing the circuit to conform to the irregular accommodating space within the housing. This flexible film structure occupies minimal space while providing all necessary electrical connections and functions.
Data Source
AI summary
An electronic device includes an enclosure having an accommodating space formed therein, multiple functional devices, and a battery. The multiple functional devices occupy the accommodating space, and the battery occupies the accommodating space. The battery includes multiple electrode assemblies, a housing, and a flexible circuit. The housing includes multiple protrusions protruding outward forming multiple accommodating grooves, and the accommodating grooves respectively match dimensions of the electrode assemblies. The flexible circuit is integrally formed with the housing and is disposed based on a connection relationship of the electrode assemblies and positions of the lead-out portions. The flexible circuit includes an output terminal and multiple connecting portions. The connection relationship includes a serial connection or a parallel connection. The connecting portions is connected with the corresponding lead-out portions to electrically connect with the electrode assemblies, and the output terminal extends out of the housing for leading out power.