Vertical Battery Pack Layout for Narrow Column Installation
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Solution Overview
Problem
Existing battery pack installation structures for solar streetlights face challenges in efficiently installing and replacing multiple reused battery packs within narrow columns due to predetermined dimensions and structures, as seen in JP2002-270381A, which does not provide specific arrangements for multiple battery packs.
Innovation Solution
The battery pack installation structure arranges reused battery packs in a rectangular parallelepiped shape, placed vertically inside a columnar member, aligning them in an up-down direction to increase installation and replacement efficiency, ensuring air passage and preventing overheating and condensation, with independent wiring for each group to maintain operation even if one system fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple battery packs are installed inside a narrow columnar member, then the total battery capacity increases, but the installation and replacement difficulty increases due to space constraints
Solution Approach 1:
The battery packs are arranged vertically one above another in the columnar member, utilizing the vertical dimension to maximize space utilization. This vertical stacking arrangement allows multiple battery packs to be installed within the narrow columnar space while maintaining accessibility through the opening, resolving the contradiction between increasing battery capacity and maintaining ease of installation and replacement.
2Volume of stationary object
If battery packs are arranged vertically inside the columnar member, then space utilization increases, but heat dissipation and condensation prevention become more difficult
Solution Approach 1:
A partition wall is introduced to divide the columnar member into multiple compartments, each containing a battery pack. This partition structure creates air passages between adjacent battery packs, enabling heat dissipation and preventing condensation by extracting the heat management function from the compact vertical arrangement and providing dedicated thermal pathways.
3Device complexity
If a single battery pack system is used, then the system structure is simple, but the reliability decreases when the battery pack needs to be replaced
Solution Approach 1:
The battery system is segmented into multiple independent battery packs arranged vertically, with each pack having independent wiring connections to the load. This segmentation allows individual battery packs to be replaced without affecting the operation of other packs, maintaining system reliability while keeping the overall structure relatively simple through modular design.
Data Source
Figure 1A~1B
Figure 2
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AI summary
[Problem to be Solved] To provide a battery pack installation structure that increases working efficiency for installation and replacement of battery packs (5) in a structure for installing a plurality of battery packs (5) inside a columnar member (2). [Solution] A battery pack installation structure for installing, inside a columnar member (2), a battery pack (5) capable of supplying electricity to an illumination device (4), in which the battery pack (5) is formed in a rectangular parallelepiped shape in which a side in a vertical direction is shorter than a side in a horizontal direction when placed in a transverse direction, and a plurality of the battery packs (5) placed in the vertical direction are arranged to align in an up-down direction inside the columnar member (2).