Modular Battery Pack Housing With Reinforcing Plates for High Rigidity
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Solution Overview
Problem
Existing battery pack housings have complex structures, low space utilization, and limited versatility, which hinders standardization, modularization, and mass production, and lack sufficient structural strength for modern electric vehicles.
Innovation Solution
A battery pack housing design featuring multiple connected sub-housings with reinforcing plates between top and bottom plates, forming an 'I'-shaped structure, enhancing rigidity and load-bearing capacity, and allowing for customizable configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple side beams and a bottom plate are welded to form the tray, then the structural strength is improved, but the device complexity increases and space utilization rate decreases
Solution Approach 1:
The patent merges the functions of multiple side beams and bottom plate into a single integrated tray body structure. The tray body is designed as one piece with integrated side walls and bottom, eliminating the need for separate welding of multiple components. This reduces device complexity while maintaining structural strength through the integrated design and added reinforcing plates.
Solution Approach 2:
The patent segments the tray body into multiple sub-housings that can be independently designed and assembled. Each sub-housing contains reinforcing plates that provide local structural strength. This segmentation allows for simplified manufacturing of individual components while achieving overall structural integrity when assembled together.
2Strength
If multiple side beams and a bottom plate are welded to form the tray, then the structural strength is improved, but the space utilization rate decreases
Solution Approach 1:
By merging multiple components into a single integrated tray body, the patent eliminates the space wasted by weld joints and component interfaces. The integrated design allows for more efficient use of the battery pack housing volume, as the tray body occupies space more efficiently compared to multiple separate welded components.
3Ease of manufacture
If the battery pack housing structure is kept simple, then the manufacturing cost is reduced, but the structural strength decreases
Solution Approach 1:
The patent divides the battery pack housing into multiple independent sub-housings that can be manufactured separately using simple, cost-effective processes. Each sub-housing is then assembled into the complete housing structure. This segmentation allows for simple manufacturing of individual components while achieving the required overall structural strength through the modular assembly and integrated tray body design.
4Adaptability or versatility
If the battery pack housing is designed for standardization and modularization, then the versatility increases, but the structural strength may decrease
Solution Approach 1:
The patent divides the battery pack housing into multiple standardized sub-housings that can be configured in different arrangements to meet various application requirements. This modular segmentation enables versatility and adaptability while maintaining structural strength, as each sub-housing is designed with integrated reinforcing features and the overall structure benefits from the modular assembly approach.
Data Source
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AI summary
The present disclosure provides a battery pack housing, a battery pack, and an electric vehicle. The housing includes a housing body, where the housing body includes multiple connected sub-housings, and at least one sub-housing is provided with at least one reinforcing plate therein. The sub-housing includes a top plate and a bottom plate arranged opposite to each other in a first direction, where the first direction is a height direction of the housing. The reinforcing plate is located between the top plate and the bottom plate, the at least one reinforcing plate is connected to the top plate and the bottom plate, and the at least one reinforcing plate divides the interior of a corresponding sub-housing into multiple accommodating cavities. A mounting portion is provided on the housing, which is configured to be connected and fixed to an external load. The battery pack housing according to the present disclosure has high structural strength, high space utilization rate, simple structure, high assembly efficiency, and high versatility.