Battery Can Sensor Assembly With Positive-Pressure Dust Shielding
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Solution Overview
Problem
Existing apparatuses for manufacturing battery cans often malfunction due to pollutants like lubricant dust, leading to operational stops and reduced productivity.
Innovation Solution
An apparatus with a sensor assembly that includes a sensor, a support, an air nozzle, and an air supplier to generate a positive pressure inside the support, preventing pollutants from reaching the sensor and minimizing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a sensor is used to count metal bars in the manufacturing process, then productivity is improved through automation, but the sensor malfunctions due to pollutants like lubricant dust
Solution Approach 1:
A support structure is introduced as an intermediary between the sensor and the metal bars. This support creates a physical barrier that prevents pollutants from reaching the sensor while allowing the sensor to continue detecting metal bars through the support structure, thus maintaining both automation and sensor reliability
Solution Approach 2:
The sensor is extracted from direct exposure to the pollutant environment by mounting it on a support structure. This separation removes the sensor from the harmful environment caused by lubricant dust while preserving its counting function
2Measurement precision
If the sensor is positioned close to the metal bar for accurate detection, then measurement precision is improved, but the sensor is more exposed to pollutants
Solution Approach 1:
The support structure serves as a mediator that allows the sensor to maintain close proximity to metal bars for accurate detection while physically blocking pollutants from reaching the sensor surface
Solution Approach 2:
The support structure provides localized protection specifically at the sensor location where pollutant exposure is most harmful, while allowing other areas of the manufacturing process to continue operating with lubricant application
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 effectively prevents sensor malfunctions and errors caused by pollutants, ensuring continuous operation and improving the productivity of battery can manufacturing.
Implementation Method 1
an air nozzle coupled to the support and configured to blow air outside the support into the support such that a positive pressure is generated inside the support
Data Source
AI summary
An apparatus for manufacturing a battery can, a method of manufacturing a battery can, and a secondary battery including a battery can are disclosed. An apparatus for manufacturing a battery can includes a press mold configured to press a metal bar made of a metal material and form the metal bar into a battery can, and a sensor assembly configured to count the metal bar. The sensor assembly includes a sensor including a sensing surface to detect the metal bar before the metal bar is placed on the press mold, a support configured to support the sensor without blocking the sensing surface, an air nozzle coupled to the support and configured to blow air outside the support into the support such that a positive pressure is generated inside the support, and an air supplier connected to the air nozzle to blow the air into the support.