Battery Case Sealing and Vacuum Analysis for Real-Time Pressure Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery case analysis methods struggle to simulate the status condition of actual batteries and analyze gas volume and pressure changes in real time without leakage, consuming significant time and risking deformation and human error.
Innovation Solution
A battery case analyzing apparatus with a sealing mechanism using O-rings and a vacuum pump to maintain airtightness, allowing real-time pressure measurement and analysis, even with surface deformation, by controlling gas injection and vacuum formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gas is injected into the battery case from the outside, then the pressure limit measurement can be performed, but it is difficult to simulate the status condition of actual batteries and analyze gas volume and pressure changes in real time without leakage
Solution Approach 1:
The sealing portion is prepared in advance with sealing grooves and O-ring sealing members positioned to automatically engage with the battery case when the gas injection needle penetrates the cap. This preliminary arrangement of sealing components eliminates the need for time-consuming manual sealing adjustments during the actual measurement process, thus reducing preparation time while maintaining reliable sealing.
Solution Approach 2:
The sealing portion acts as an intermediary component between the gas injection needle and the battery case. It includes a sealing groove with an O-ring sealing member that creates a reliable seal when the needle penetrates the cap. This intermediary structure ensures gas-tight sealing without requiring direct contact between the needle and the battery case, preventing leakage while enabling real-time pressure and volume analysis.
2Ease of operation
If gas is injected into the battery case without proper sealing, then the analysis process is simplified, but gas leakage occurs preventing accurate real-time analysis
Solution Approach 1:
The sealing mechanism is designed to automatically engage and create a seal when the gas injection needle penetrates the cap. The sealing groove and O-ring positioning are arranged such that the act of needle insertion itself activates the sealing function, eliminating the need for separate manual sealing operations. This self-service approach maintains operational simplicity while ensuring accurate pressure measurements through reliable sealing.
3Manufacturing precision
If the battery case surface deforms during analysis, then the battery case responds to internal pressure changes, but maintaining sealing between the battery case and gas injection line becomes difficult
Solution Approach 1:
The sealing portion incorporates an O-ring sealing member in a groove, creating a flexible sealing interface. The O-ring can deform elastically to accommodate surface irregularities and case deformation during pressure analysis, while maintaining the sealing function. This flexible sealing approach allows the system to tolerate battery case deformation without compromising sealing precision or measurement accuracy.
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 apparatus ensures rapid and accurate pressure analysis with minimized human error and deformation, preventing electrolyte reverse flow and maintaining sealing integrity during gas injection.
Implementation Method 1
a vacuum pump (800) which is connected to an outlet (122) of the vacuum forming passage (120) to form a vacuum in a vacuum forming groove (140)
Implementation Method 2
into which first and second sealing members (135, 155) are inserted
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention provides an apparatus for analyzing a battery case, the apparatus comprising: a sealing part having a gas injection flow path and a vacuum forming flow path; a gas injection line connected to the inlet of the gas injection flow path; a vacuum forming line connected to the outlet of the vacuum forming flow path; a gas supply part for injecting a gas into the battery case; and a vacuum pump for forming a vacuum in a vacuum forming groove..