Battery Dehumidification Structure With Replaceable Desiccant
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Solution Overview
Problem
Existing battery waterproof measures fail to prevent water vapor ingress, leading to condensation and increased risk of thermal runaway due to humidity and temperature differences, which can cause metal corrosion and reduce battery service life.
Innovation Solution
A battery dehumidification structure with a shell and drying assembly, featuring a water vapor deposition region and a detachable drying element with desiccant, which absorbs moisture without disassembling the battery set, combined with a cooling assembly to manage heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the drying assembly is integrated into the battery pack structure, then dehumidification effectiveness is improved, but device complexity increases
Solution Approach 1:
The drying assembly is designed as a multi-functional component that serves both as a structural support element and a dehumidification device. The valve body provides mechanical support while housing the desiccant, and the same structure facilitates both air flow control and moisture absorption, thereby reducing overall device complexity.
Solution Approach 2:
The desiccant is nested within the valve body structure, and the drying assembly is integrated into the existing battery pack housing. This nesting approach allows the dehumidification function to be added without requiring separate external components, maintaining structural simplicity while improving dehumidification effectiveness.
2Stability of the object's composition
If the desiccant is sealed permanently in the drying assembly, then structural integrity is improved, but maintenance and replacement difficulty increases
Solution Approach 1:
The seal structure transitions from a permanent fixed state to a dynamic state that allows controlled access. The valve body includes a removable cap or access port that can be opened for desiccant replacement and then sealed to restore structural integrity. This dynamic design enables both maintenance accessibility and structural stability at different operational stages.
Solution Approach 2:
The desiccant is designed as a replaceable consumable component that can be easily removed and replaced when saturated. The sealing structure is designed to facilitate this replacement process while maintaining integrity during normal operation, allowing the desiccant to be discarded and recovered (replaced) without compromising the overall structural integrity of the valve assembly.
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
Maintains a dry environment within the battery box, extending service life and reducing thermal runaway risks while simplifying assembly and maintenance by allowing desiccant replacement without disassembly.
Implementation Method 1
The drying element is provided with an accommodating cavity and a plurality of through holes. The accommodating cavity is in communication with the through holes and the opening respectively, and the accommodating cavity is configured to accommodate desiccant.
Implementation Method 2
The cooling assembly includes a plurality of cooling channels that are communicate with each other. The second monitoring region is provided with at least one of the cooling channels.
Implementation Method 3
The cooling assembly includes a plurality of cooling channels that are communicate with each other
Data Source
AI summary
A battery dehumidification structure and a battery pack are provided. The battery dehumidification structure includes a shell and a drying assembly. The shell is provided with a first mounting region and a water vapor deposition region. The first mounting region is configured to mount a battery set. The water vapor deposition region is provided with a second mounting region. The drying assembly is arranged in the second mounting region, so as to remove water vapor from the battery set.