Mobile Device Battery Segmentation for Thermal Management
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Solution Overview
Problem
Mobile devices with batteries face challenges due to heat influences, where the battery's performance is affected by heat emissions from the control unit, leading to inefficient power supply and reduced portability.
Innovation Solution
A mobile device configuration with a first processor and a second processor of lower power consumption, along with a first battery and an attachable/detachable second battery, where the distance between the processors and their respective batteries is optimized to enhance power supply efficiency and portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the battery is placed close to the control unit for compact design, then the device size is reduced, but the battery is exposed to heat emission from the control unit which affects its performance
Solution Approach 1:
The power supply system is segmented into a first battery integrated with the control unit and a second battery separated from the control unit. This segmentation allows the second battery to be positioned away from heat sources while still providing power to the mobile device, thus resolving the contradiction between compact design and heat protection.
Solution Approach 2:
The first battery acts as an intermediary power source that is integrated with the control unit, while the second battery serves as a separate power source positioned away from the control unit. This intermediary arrangement allows the system to maintain both compact integration and thermal separation.
2Device complexity
If a single battery is used to supply power to both processors, then the device structure is simplified, but the power supply stability is reduced when one processor generates heat
Solution Approach 1:
The power supply system is divided into two independent power sources: the first battery connected to the control unit and the second battery connected to the mobile processor. This segmentation ensures that heat generation by one processor does not affect the other battery's performance, thereby improving power supply stability without significantly increasing overall device complexity.
Solution Approach 2:
Each battery is strategically positioned and connected to specific processors based on their thermal characteristics. The first battery serves the control unit while the second battery serves the mobile processor, creating localized power supply zones that optimize both stability and thermal management.
3Duration of action of moving object
If the battery capacity is increased to extend operation time, then the portability is improved, but the device weight and volume increase
Solution Approach 1:
The total battery capacity is segmented into two separate batteries with different capacities positioned at different locations. This allows the system to achieve extended operation time through combined capacity while maintaining flexibility in weight distribution and device design.
Solution Approach 2:
Instead of increasing battery capacity in a single location (one-dimensional approach), the system distributes battery capacity across two spatially separated locations, adding a spatial dimension to the power supply architecture. This enables extended operation time without concentrating all battery weight in one place.
Data Source
AI summary
A mobile device includes a first processor, a second processor having a smaller power consumption than the first processor, and a first battery capable of supplying power to the first processor and the second processor, in which a distance between the first processor and an attachable/detachable second battery that is capable of being attached and detached and that is capable of configured to supplying power to the first processor and the second processor is longer than a distance between the second processor and the second battery.