Battery Cell Holder Layout for Airflow-Based Heat Dissipation
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Solution Overview
Problem
The existing battery module design in Patent Document 1 lacks effective heat dissipation due to the battery cells being fully enclosed, which impedes the dissipation of heat from the cells.
Innovation Solution
A cell holder design that holds battery strings in a zigzag pattern, allowing for airflow between the strings, and a battery module structure that includes a case unit with open side walls to facilitate air circulation and enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If battery cells are fully enclosed by housing sections, then structural protection is improved, but heat dissipation deteriorates
Solution Approach 1:
The housing is segmented into multiple sections: a first housing section that encloses outer side surfaces of battery cells, and a second housing section that encloses only inner side surfaces. This segmentation allows the first housing section to provide structural protection while the second housing section creates airflow passages for heat dissipation without compromising overall structural integrity.
Solution Approach 2:
Different portions of the housing provide different functions: the first housing section provides full enclosure and protection for outer side surfaces, while the second housing section provides localized protection only for inner side surfaces. This local quality differentiation allows simultaneous achievement of structural protection and heat dissipation by providing enclosure only where structurally necessary.
2Stability of the object's composition
If battery cells are fully enclosed, then structural integrity is improved, but airflow for cooling deteriorates
Solution Approach 1:
The housing is divided into two functional sections: the first housing section that encloses outer side surfaces to maintain structural integrity, and the second housing section that encloses only inner side surfaces, creating intentional gaps and passages that allow airflow between adjacent battery cell groups for effective cooling.
3Object-affected harmful factors
If all outer side surfaces are enclosed, then cell protection is improved, but heat dissipation efficiency deteriorates
Solution Approach 1:
The housing provides differentiated protection: the first housing section encloses outer side surfaces of battery cells for protection, while the second housing section encloses only inner side surfaces. This local quality approach provides protection only where necessary while maintaining open passages for heat dissipation, achieving optimal balance between protection and thermal management.
Solution Approach 2:
The housing is segmented into first and second housing sections with distinct functions. The first section provides comprehensive protection for outer surfaces, while the second section provides selective protection for inner surfaces only, creating airflow channels that enable efficient heat dissipation without compromising essential cell protection.
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 promotes effective heat dissipation from the battery cells by allowing airflow between the strings and through the open side walls, improving thermal management.
Implementation Method 1
an opening section configured to allow a gas to flow in and out between the plurality of battery strings held by the holding unit
Data Source
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AI summary
An object is to promote heat dissipation from a plurality of battery cells. A cell holder 102 holds battery strings S1, S2, S3, S4, S5, S6, and S7 in which a plurality of battery cells S is arranged in a first direction intersecting an axial direction of the battery cell S. The cell holder 102 includes a holding unit 104 and an opening section 105. The holding unit 104 holds the battery strings S1, S2, S3, S4, S5, S6, and S7 such that the battery strings S1, S2, S3, S4, S5, S6, and S7 are arranged at intervals in a second direction intersecting both the axial direction and the first direction. The opening section 105 allows a gas to flow in and out between the battery strings S1, S2, S3, S4, S5, S6, and S7 held by the holding unit 104.