Electrolyte Injection Nozzle Plate for Residual Leak Prevention
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Solution Overview
Problem
Conventional electrolyte injection processes face issues with leakage of residual electrolyte from the nozzle, leading to contamination of equipment and battery assemblies during the injection process, necessitating a solution to prevent leakage and facilitate controlled nozzle opening and closing.
Innovation Solution
A nozzle opening and closing device with a rotatable opening and closing plate and a weight-based control mechanism that automatically opens and closes the nozzle discharge outlet based on the weight of the electrolyte, utilizing a weight member to adjust the rotational moment and prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple cylindrical nozzle is used for electrolyte injection, then the device complexity is reduced and ease of manufacture is improved, but residual electrolyte leaks out when the nozzle moves or waits during injection, causing contamination and corrosion of equipment
Solution Approach 1:
The nozzle is divided into two functional parts: a fixed cylindrical nozzle body and a separate rotatable opening/closing plate. The plate can rotate to cover or expose the discharge outlet, separating the injection function from the control function. This segmentation allows the simple cylindrical structure to maintain its manufacturing ease while adding leakage prevention capability through the independent controllable plate.
Solution Approach 2:
The opening/closing plate is designed to be rotatable rather than fixed, allowing it to dynamically change position between open and closed states. This dynamic capability enables the nozzle to adapt to different operational requirements (injection vs. waiting/moving) by rotating the plate to the appropriate position, preventing electrolyte leakage during non-injection periods.
2Reliability
If a rotatable opening and closing plate with weight-based control is added to the nozzle, then electrolyte leakage is prevented and injection control is improved, but the device complexity increases
Solution Approach 1:
A weight member is attached to the opening/closing plate to create a counterbalancing moment. The weight member's gravitational force generates a rotational moment that opposes the moment created by electrolyte pressure, enabling automatic closing when electrolyte is absent or low. This counterweight mechanism provides reliable automatic control without requiring complex electronic sensors or actuators, maintaining mechanical simplicity while achieving dependable leakage prevention.
Solution Approach 2:
The weight-based control mechanism enables the nozzle to automatically open and close based on the presence and weight of electrolyte itself, without requiring external control systems. The electrolyte's own weight creates the opening moment, while the counterweight provides the closing moment, creating a self-regulating system that reliably prevents leakage through inherent physical principles rather than complex external control.
3Device complexity
If the opening and closing plate is controlled manually, then the device complexity is minimized, but the precision of electrolyte injection amount control is reduced
Solution Approach 1:
The weight member creates a feedback mechanism where the actual weight of electrolyte in the nozzle directly influences the opening/closing plate position. As electrolyte is injected and its weight increases, it overcomes the counterweight moment and opens the nozzle. When injection stops and electrolyte weight decreases, the counterweight automatically closes the nozzle. This real-time weight-based feedback ensures precise control of injection amounts based on actual electrolyte presence.
Solution Approach 2:
The control mechanism utilizes changes in the physical parameter of electrolyte weight to directly control the nozzle state. The weight member translates electrolyte weight variations into rotational moment changes, which automatically adjust the opening/closing plate position. This parameter-based control (using weight rather than position or time) provides precise injection control by responding to the actual physical state of the electrolyte.
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
Prevents electrolyte leakage during the injection process, ensuring equipment and battery assembly protection, and allows for precise control of electrolyte injection amounts by automatically opening and closing the nozzle based on electrolyte weight.
Implementation Method 1
an opening and closing control part provided to control whether the opening and closing plate is opened or closed based on the weight of the electrolyte applied to the opening and closing plate
Implementation Method 2
the opening and closing control part comprises a weight member provided so that rotational moment acts in the closing direction of the opening and closing plate
Data Source
AI summary
A nozzle opening and closing device for electrolyte injection comprises a nozzle having a discharge outlet for injecting an electrolyte into a battery assembly. The nozzle opening and closing device for electrolyte injection further comprises an opening and closing plate rotatably mounted on the nozzle, and provided to open or close the discharge outlet of the nozzle, and an opening and closing control part provided to control whether the opening and closing plate is opened or closed based on the weight of the electrolyte applied to the opening and closing plate.