Battery Pack Guide And Rib Layout for Uniform Cell Cooling
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Solution Overview
Problem
As wireless electronic devices increasingly rely on higher-capacity battery packs, there is a need for enhanced cooling performance to ensure reliability and safety, as existing solutions often result in complex configurations and increased weight.
Innovation Solution
A battery pack design featuring an upper housing with inlets and outlets, a lower housing with protruding lower ribs that support battery cells, and guides within the upper housing to direct airflow efficiently, preventing vortices and ensuring smooth air flow for effective cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If higher-capacity battery packs are used to increase usable time, then duration of action is improved, but cooling performance deteriorates due to increased heat generation
Solution Approach 1:
The battery pack is divided into multiple battery cells arranged in a structured configuration. Each cell is individually supported by lower ribs and cell holders, creating segmented cooling channels between adjacent cells. This segmentation allows cooling air to flow through multiple narrow passages, increasing the surface area for heat dissipation while maintaining a compact overall structure suitable for high-capacity battery packs.
2Temperature
If complex cooling structures are added to improve cooling performance, then temperature control is improved, but device complexity increases
Solution Approach 1:
The lower ribs and cell holders serve multiple functions simultaneously: they provide structural support for the battery cells, define the cooling air flow paths, and act as spacers to maintain uniform gaps between adjacent cells. This multi-functionality eliminates the need for separate cooling channels or additional support structures, achieving effective cooling while maintaining structural simplicity.
Solution Approach 2:
The support structure and cooling structure are merged into a single integrated design. The lower ribs and cell holders that support the battery cells also form the boundaries of the cooling channels. By combining these functions, the patent avoids adding separate cooling components, thereby improving cooling performance without significantly increasing device complexity.
3Duration of action of moving object
If larger battery packs are used to increase capacity, then duration of action is improved, but weight increases
Solution Approach 1:
The patent optimizes the three-dimensional arrangement of battery cells within the pack by using vertical stacking with lower ribs and cell holders. This spatial optimization allows high-capacity batteries to be arranged more efficiently in the available volume, reducing the overall pack size and weight while maintaining high capacity. The structured support system enables compact positioning without compromising cooling performance.
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
The design enhances cooling efficiency by guiding air flow effectively, preventing vortices and ensuring uniform cooling of battery cells, thereby improving the reliability and safety of battery packs in devices like cordless vacuum cleaners.
Implementation Method 1
one or more inlets on one side and one or more outlets on another side opposite to the one or more inlets... guides which are inside the upper housing to respectively correspond to the one or more inlets and extend downward to move air flowing in via the one or more inlets
Data Source
AI summary
A battery pack includes an upper housing having one or more inlets on a first side and one or more outlets on a second side opposite to the first side, a lower housing below the upper housing, lower ribs on a bottom surface of the lower housing, the lower ribs being spaced apart from each other in a longitudinal direction of the lower housing, and battery cells on the bottom surface of the lower housing, the battery cells being supported by the lower ribs.