Battery Charger Airflow Layout for High-Power Pack Cooling
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Solution Overview
Problem
Existing battery chargers lack efficient cooling mechanisms for high-power battery packs, leading to potential overheating and reduced performance.
Innovation Solution
Incorporation of fans and air passage members within the charger housing to facilitate airflow through vent holes in the battery pack, coupled with separate cooling air passages for charger electronics, ensuring effective heat dissipation during charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-power charging is implemented, then charging speed is improved, but heat generation increases causing overheating risks
Solution Approach 1:
The cooling system is segmented into multiple independent air passages: a first cooling air passage for battery pack cooling and a second cooling air passage for charger electronics cooling. This segmentation allows independent optimization of cooling paths for different heat-generating components, enabling high-power charging while effectively managing heat from both the battery pack and charger electronics.
Solution Approach 2:
Cooling air passages act as intermediary channels that facilitate heat dissipation. The air passages include vent holes, fans, and airflow paths that mediate between the heat-generating components (battery pack and electronics) and the external environment, enabling efficient thermal management during high-power charging operations.
2Temperature
If cooling mechanisms are added to the charger, then heat dissipation is improved, but device complexity increases
Solution Approach 1:
The cooling air passages serve multiple functions: they provide structural support for the battery pack interface, enable thermal management for both battery and electronics, and facilitate airflow without requiring separate complex cooling structures. The air passages are integrated into the housing to perform both mechanical and thermal management functions simultaneously.
Solution Approach 2:
The cooling system components (fans, air passages, vent holes) are nested within the existing charger housing structure. The air passages are formed as hollow channels within the housing walls, and fans are mounted within the housing interior, eliminating the need for external cooling structures and reducing overall device complexity.
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
Enhances cooling efficiency, allowing high-power battery packs to be charged rapidly while maintaining performance and safety by preventing overheating.
Implementation Method 1
a first fan positioned in the battery pack receiving portion adjacent the first plurality of vent holes and operable to move air from outside of the battery pack receiving portion into the first cooling air passage via the first plurality of vent holes
Implementation Method 2
a second fan positioned in the charger electronics portion outside the charger electronics enclosure adjacent the second plurality of vent holes and operable to move air from outside charger electronics portion into the second cooling air passage via the second plurality of vent holes
Implementation Method 3
a first cooling air passage extending through the battery pack receiving portion from the first plurality of vent holes to an opening in a second outer wall of the battery pack receiving portion
Data Source
AI summary
A charger includes a housing with an interface positioned in a front wall and configured to engage a battery pack. The interface includes charging terminals positioned between a first rail and a second rail, a first groove positioned between the first rail and a wall of the housing, and a second groove positioned between the second rail and the wall of the housing. The interface is in communication with an interior of the housing. A fan is coupled within the housing adjacent the interface, and an air passage member includes a hollow body that has a first end coupled to the fan and a second end spaced apart from the first end extending through another wall of the housing. The fan is operable to suck an air flow into the housing from outside the housing and guide the air flow through the air passage member to the interface.