Battery Box Heat-Absorbing Layer for Noise and Deformation Control
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Solution Overview
Problem
Existing battery cases experience abnormal noise due to uneven temperature distribution caused by heat management components, which affects user experience.
Innovation Solution
A battery case design incorporating a heat absorbing member between the heat management component and protective member to absorb heat at a threshold temperature, reducing overall heat transfer to the protective member and maintaining uniform temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional box body structure is used, then the manufacturing process is simple, but the sealing performance is insufficient and external forces cause deformation
Solution Approach 1:
The box body is divided into multiple ribs (first ribs and second ribs) that segment the cover and base structures. These ribs create multiple sealing zones and reinforce the structure against deformation, transforming a single complex sealing problem into multiple manageable sealing segments.
Solution Approach 2:
The box body employs a composite structure combining cover and base portions with integrated ribs formed from the same material. This composite design maintains structural integrity while achieving both sealing performance and mechanical strength without requiring additional materials or assembly steps.
2Strength
If the box body structure is reinforced to prevent deformation, then mechanical strength improves, but the manufacturing complexity increases
Solution Approach 1:
The reinforcement structure is segmented into multiple ribs distributed across the cover and base. Each rib acts as an independent reinforcement element that resists local deformation, allowing the structure to handle external forces without requiring a monolithic complex design.
Solution Approach 2:
The ribs provide localized reinforcement at critical areas of the box body where external forces are most likely to cause deformation. This local quality approach strengthens the structure only where needed rather than uniformly throughout, maintaining simplicity elsewhere.
3Reliability
If the sealing structure is improved to prevent fluid infiltration, then sealing performance improves, but the manufacturing process becomes more complex
Solution Approach 1:
The sealing ribs are merged with the main box body structure, forming an integrated component. The cover and base portions with their respective ribs are molded as single pieces, eliminating the need for separate sealing components and complex assembly processes while maintaining effective sealing.
Data Source
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AI summary
The present application discloses a case of a battery, a battery and an electrical device. The case includes: a heat management component configured for accommodating a fluid to adjust a temperature of battery cells; a protective member configured for protecting the heat management component; and a heat absorbing member arranged between the heat management component and the protective member, and configured for absorbing heat generated by the heat management component when a temperature of the heat management component reaches a threshold value. In the embodiments of the present application, the heat absorbing member is arranged between the heat management component and the protective member, such that the heat generated by the heat management component is first absorbed by the heat absorbing member and then transferred to the protective member, therefore the overall heat transferred to the protective member is reduced, the problem of abnormal noise caused by uneven temperature on the protective member is overcome.