Battery Box Internal Beam Layout for Stable Module Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing battery boxes suffer from heat transfer between the heat exchange plate and the bottom planes of the internal beams, which affects the heat exchange effect and stability of the battery's operating temperature.
Innovation Solution
The battery box design includes internal beams with partially recessed bottom planes and the use of heat insulation glue to minimize contact with the heat exchange plate, reducing direct heat exchange and enhancing temperature stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the heat exchange plate is fixed to the beams of the lower frame body, then the structural stability is improved, but the heat transfer between the heat exchange plate and the beams affects the heat exchange effect on the batteries
Solution Approach 1:
The bottom plane of the internal beam is segmented into multiple surfaces at different heights. The first plane contacts the heat exchange plate while the second plane is recessed and spaced apart, creating distinct contact and non-contact zones that separate structural support functions from heat exchange functions.
Solution Approach 2:
Different regions of the beam's bottom plane are given different thermal properties. The first plane area allows heat transfer to maintain structural stability, while the second plane area is designed with spacing and heat insulation glue to prevent unwanted heat transfer, creating local thermal insulation zones.
2Strength
If the entire bottom plane of the internal beam contacts the heat exchange plate, then the structural support is improved, but the unwanted heat transfer occurs affecting battery temperature stability
Solution Approach 1:
Heat insulation glue is introduced as an intermediary material between the second plane of the beam and the heat exchange plate. This intermediary layer blocks the thermal conduction path while maintaining the physical spacing and structural configuration, preventing direct heat transfer between the beam and heat exchange plate.
Solution Approach 2:
The harmful heat transfer function is extracted from the beam-heat exchange plate interface by creating a recessed second plane that is spaced apart from the heat exchange plate. This separates the structural support function (handled by the first plane contact) from the unwanted heat transfer function.
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
This design reduces heat exchange between the heat exchange plate and the internal beams, improving the stability, constancy, and controllability of the battery's operating temperature.
Implementation Method 1
the heat exchange plate supports the batteries and exchanges heat with the batteries
Implementation Method 2
heat insulation glue being filled between the second plane of the bottom plane of the internal beam and the top plane of the heat exchange plate
Data Source
AI summary
This application provides a battery box, which includes: a heat exchange plate and a lower frame body located on the heat exchange plate. The lower frame body includes edge beams and internal beams, the edge beams forming a circumferential closure opened in an up-down direction, the edge beams and the heat exchange plate together forming an accommodating space with an upward opening, and the internal beams located inside the accommodating space and divide the accommodating space into sub-accommodating spaces for placing battery modules. The heat exchange plate is configured to support the battery modules and exchanges heat with batteries of the battery modules, and a bottom plane of an internal beam is partly in contact with a top plane of the heat exchange plate in the up-down direction.