Battery Enclosure Assembly With Hollow Base and Fixing Frame
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Solution Overview
Problem
The assembly of battery enclosures is hindered by low precision and efficiency due to the difficulty in controlling the positioning of components, leading to unstable relative positions and reduced structural reliability.
Innovation Solution
The enclosure design incorporates a positioning member with a hollow bottom wall and side walls forming a cavity, a fixing frame that restricts battery cells, and a heat sink for improved assembly efficiency and heat dissipation, along with reinforcing beams and connecting members for enhanced structural strength and leak-tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional solid bottom wall is used in the positioning member, then the structural strength is improved, but the weight increases and heat dissipation is hindered
Solution Approach 1:
The bottom wall is designed with a hollow portion that can be filled with porous heat dissipation materials or form a heat dissipation cavity. This allows the structure to maintain strength while reducing weight and improving heat dissipation performance through the porous structure's high surface area to volume ratio.
Solution Approach 2:
The hollow portion in the bottom wall can accommodate heat dissipation components or cooling channels within the wall structure itself, nesting functional elements inside the structural component to reduce overall weight while maintaining strength and adding heat dissipation capability.
2Manufacturing precision
If the fixing frame is rigidly fixed to the positioning member, then the position-limiting effect on battery cells is improved, but the assembly efficiency decreases
Solution Approach 1:
The fixing frame is divided into multiple independent fixing components that can be separately positioned and assembled. Each fixing component can be independently adjusted and secured to the positioning member, allowing for precise positioning of battery cells while simplifying the assembly process through modular construction.
Solution Approach 2:
The fixing frame components are pre-positioned or pre-assembled on the positioning member before battery cell installation. This preliminary arrangement ensures precise positioning is already in place, and battery cells can be quickly installed without complex alignment procedures during final assembly.
3Volume of moving object
If multiple components are densely arranged in the enclosure, then the space utilization is improved, but the assembly precision becomes difficult to control
Solution Approach 1:
The positioning member features locally optimized positioning structures at specific locations where components need precise positioning. These localized positioning features (such as positioning protrusions, recesses, or guides) are strategically placed to ensure accurate assembly of critical components while allowing flexible arrangement of other elements to maximize space utilization.
Solution Approach 2:
Positioning and fixing mechanisms utilize multiple dimensions (vertical, horizontal, and depth directions) to control component positions. By employing multi-dimensional positioning features such as layered fixing frames, vertical positioning ribs, and depth-controlled mounting structures, precise assembly is achieved even with dense component arrangement.
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 enhances assembly precision and efficiency, improves the position-limiting effect on battery cells, facilitates heat dissipation, and increases the structural strength and sealing performance of the enclosure, thereby improving the reliability and performance of the battery system.
Implementation Method 1
heat of the battery cells can be dissipated through the hollow portion
Implementation Method 2
heat sink for improved assembly efficiency and heat dissipation
Data Source
AI summary
An enclosure, a battery and a power consuming device are provided. The enclosure is configured to accommodate battery cells and includes: a positioning member, including a bottom wall and a side wall connected to a circumference of the bottom wall, the side wall and the bottom wall enclosing and defining a positioning cavity, and the bottom wall being provided with a hollow portion; a fixing frame, located in the positioning cavity and configured to enclose the battery cells; and a backplate, disposed on one side of the bottom wall facing away from the positioning cavity. According to embodiments of the present application, the fixing frame can be rapidly assembled in the positioning cavity so that the assembly efficiency of the enclosure can be effectively improved.