Series Filter Venting System for Lead Acid Battery
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Solution Overview
Problem
Maintenance free lead acid batteries suffer from poor venting and inadequate acid baffle effects due to insufficient filter systems in their existing venting systems.
Innovation Solution
A venting system with two filters placed in series, where the first filter is vertically positioned and the second filter is horizontally positioned, forming a gas path with partitions to separate airflow, ensuring effective gas venting and acid baffle functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single filter is used in the venting system, then the device complexity is reduced, but the venting effect and acid baffle effect are insufficient
Solution Approach 1:
The venting system is segmented into two distinct filters: a first filter (vertical plate) and a second filter (horizontal plate), each performing specific functions. This segmentation allows each filter to be optimized for its particular role while together providing comprehensive venting and acid baffle effects, resolving the contradiction between system reliability and complexity.
Solution Approach 2:
The two filters are nested within the same venting system structure, with the first filter positioned to handle initial gas flow and the second filter providing additional filtration. This nested arrangement achieves enhanced venting effect without requiring separate external systems, balancing reliability improvement with controlled complexity.
2Reliability
If a single filter is used in the venting system, then the manufacturing cost is reduced, but the acid baffle effect is insufficient
Solution Approach 1:
The acid baffle function is segmented and assigned to the first vertical filter plate, which is specifically positioned to block acid flow while allowing gas passage. This segmentation enables the acid baffle effect to be achieved through a dedicated structural element rather than requiring complex multi-component systems, improving reliability while controlling manufacturing complexity.
Solution Approach 2:
The first filter plate serves multiple functions: it acts as both a gas filtration element and an acid baffle structure. This multi-functionality reduces the need for separate acid containment components, achieving improved acid baffle effect without proportionally increasing manufacturing cost.
3Productivity
If filters are added to improve venting effect, then the venting performance is improved, but the device complexity increases
Solution Approach 1:
The venting performance is improved through segmentation of the filter system into two specialized plates with different orientations and functions. This segmentation allows each component to be optimized for specific aspects of gas flow management, achieving superior overall venting performance while maintaining manageable system complexity through modular design.
Solution Approach 2:
The venting system incorporates filters at different spatial dimensions and orientations (vertical first filter, horizontal second filter), creating a multi-dimensional filtration approach. This dimensional diversity improves venting performance by addressing gas flow from multiple directions while the integrated design keeps the overall system complexity controlled.
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 solution provides a robust venting and acid baffle effect, enhancing the overall performance of the maintenance free lead acid battery by ensuring smooth gas venting and effective acid containment.
Implementation Method 1
In the path, there is a first filter and a second filter placed in series on the airflow direction
Data Source
Figure 1~2
AI summary
The title of this utility model is storage battery with venting system which has combined filters. It belongs to the technology field for maintenance free lead acid battery with double layer cover. And it mainly solves the poor venting and insufficient acid baffle effect of the existing battery venting system. The main feature of it is: consists of plates and box which is composed of container, venting lid and cover; the space between cover and venting lid contains the backflow maze structure, and the end part of maze structure which connects to the outside is the venting system; the stated venting system and the partitions form a gas path; in the path, there is a first filter and a second filter placed in series on airflow direction. This utility model has the feature of good venting and acid baffle effect. It mainly used for maintenance battery's venting and filtering.