Battery Pack Protection Circuit Buffering for Drop Impact Resistance
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Solution Overview
Problem
Existing battery pack protection circuit modules are prone to damage during drop tests due to the lack of effective impact absorption mechanisms, leading to potential cracking of the molding part.
Innovation Solution
Incorporating a molding part with a plurality of buffering members on its body, specifically designed to absorb impacts by being accommodated in accommodation grooves, thereby preventing damage to the protection circuit module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a molding protection circuit module is used to integrate components, then device complexity is reduced and manufacturing is simplified, but the molding part becomes vulnerable to impact damage during drop tests
Solution Approach 1:
The patent applies beforehand cushioning by incorporating buffering members (such as rubber or foam materials) at the corners and sides of the molding part before impact occurs. These buffering members are pre-installed to absorb and dissipate impact energy during drop tests, preventing cracking of the molding part while maintaining the integrated structure's simplicity
2Area of stationary object
If the molding part area is increased to accommodate more components, then functionality is improved, but the likelihood of collision with test jigs during drop tests increases
Solution Approach 1:
The patent applies local quality by providing buffering members only at specific high-risk areas (corners and sides) of the molding part rather than uniformly across the entire surface. This localized approach protects against impact collision during drop tests while minimizing the increase in overall device area and maintaining compact design
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
The buffering members effectively absorb impacts applied to the protection circuit module during drops, preventing damage to the molding part and ensuring the integrity of the battery pack.
Implementation Method 1
a molding part of a protection circuit module includes a buffering member to effectively absorb an impact applied to the protection circuit module if the battery pack is dropped
Data Source
AI summary
A battery pack includes a battery cell having one or more electrode tabs, a case accommodating the battery cell, and a protection circuit module including a substrate. One or more substrate tabs on the substrate are connected to the one or more electrode tabs A molding part is provided on the substrate, and the molding part includes a body, with a plurality of buffering members being provided on the body.