Battery Arrangement for Thermal Management in Electronic Devices
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Solution Overview
Problem
As electronic devices become smaller, arranging batteries in a decentralized manner within the housing leads to uneven temperature distribution, affecting the long-term characteristics of batteries, with those near heat-generating components operating at higher temperatures and potentially deteriorating faster.
Innovation Solution
The arrangement of batteries with varying heat resistance within the housing, where a high heat resistance battery is placed in a hotter area and a low heat resistance battery in a cooler area, ensures uniform long-term characteristics by managing temperature differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If batteries are arranged in a decentralized manner inside the housing to utilize space effectively, then the space utilization is improved, but the temperature distribution becomes non-uniform causing different long-term characteristics among batteries
Solution Approach 1:
The patent applies local quality by assigning different battery types to different thermal zones within the housing. Specifically, high heat resistance batteries are placed in high-temperature regions (near heat-generating components like CPU), while low heat resistance batteries are placed in low-temperature regions. This spatial differentiation of battery properties according to local thermal conditions resolves the contradiction between decentralized arrangement and uniform long-term characteristics.
2Volume of moving object
If batteries are placed near heat-generating components to utilize space, then the space utilization is improved, but the batteries near CPU operate at higher temperatures causing faster degradation
Solution Approach 1:
The patent differentiates battery placement based on local thermal environment. High heat resistance batteries are specifically positioned in high-temperature zones near heat-generating components, while standard batteries are placed in cooler regions. This ensures that batteries in high-temperature zones have the necessary thermal tolerance to maintain their lifespan, thus resolving the contradiction between space utilization and battery durability.
Solution Approach 2:
The patent converts the harmful effect of high temperature near heat-generating components into a beneficial arrangement by placing high heat resistance batteries in those zones. The high temperature environment, which would normally be harmful to standard batteries, becomes an appropriate location for specialized high heat resistance batteries, thereby utilizing the thermal characteristics of different battery types to optimize both space usage and overall system reliability.
Data Source
AI summary
Disclosed is an electronic device including: a component that generates heat while operating; a first battery capable of being charged and discharged; a second battery that is capable of being charged and discharged, and has a higher heat resistance than the first battery; and a housing accommodating the component, and providing a first space for accommodating the first battery and a second space for accommodating the second battery. The first space and the second space are arranged such that the temperature of the second battery becomes higher than that of the first battery on average, while the component is operating.