Battery Box Wall Reinforcement for Vibration Noise Reduction
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Solution Overview
Problem
Batteries generate abnormal noise due to shaking of the box wall under dynamic working conditions, which can lead to collisions and deformation, causing structural weakness and noise.
Innovation Solution
A reinforcing member is fixedly connected to the box wall to enhance its structural strength, mitigating shaking and reducing noise by constraining the box wall relative to the box body, while also providing insulation protection and occupying minimal internal space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the box wall is made thinner to reduce weight, then the weight of the battery is reduced, but the structural strength of the box wall decreases causing shaking and abnormal noise
Solution Approach 1:
The patent uses a composite structure combining the box wall and reinforcing member. The reinforcing member (made of metal or rigid material) is integrated with the box wall to form a composite structure that provides both weight efficiency and structural strength, preventing shaking and abnormal noise while maintaining lightweight characteristics.
Solution Approach 2:
The box wall structure is segmented into the box wall itself and a separate reinforcing member. This segmentation allows the box wall to remain thin and lightweight while the reinforcing member provides the necessary structural support, resolving the contradiction between weight reduction and strength maintenance.
2Strength
If a reinforcing member is added to the box wall to improve structural strength, then the structural strength increases, but the device complexity increases
Solution Approach 1:
The reinforcing member is merged with the box wall through fixed connection to form an integrated structural unit. This merging simplifies the overall design by creating a unified load-bearing structure rather than separate components requiring complex assembly, thereby reducing device complexity while maintaining enhanced structural strength.
3Strength
If the reinforcing member is disposed on the internal side of the box wall, then it provides better reinforcement, but it occupies internal space reducing the accommodation space for the battery unit
Solution Approach 1:
Instead of placing the reinforcing member on the internal side of the box wall (which would occupy battery space), the patent inverts the arrangement by positioning the reinforcing member on the external side of the box wall. This inversion maintains the reinforcement function while preserving the internal accommodation space for the battery unit.
Data Source
AI summary
This application provides a battery and an electric apparatus that includes the battery. The battery includes a battery unit, a box, and a reinforcing member. The box has a box body and a first box wall that covers one end of the box body. The battery unit is housed in a space formed by the box body and the first box wall. At least part of the reinforcing member is positioned on the first box wall and fixed to the box body. This structure strengthens the first box wall and keeps it stable relative to the box body through joint constraint by the reinforcing member and the box body. As a result, vibration of the first box wall is reduced, helping to minimize abnormal noise from the battery.