Pressure Relief Valve Gasket Structure Against Fluid Impact
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Solution Overview
Problem
The engagement portion of a gasket in a pressure relief valve can be disengaged or cause pressure loss due to direct fluid impact, especially when attached to a battery pack in an automobile.
Innovation Solution
A structural component with a gasket that includes an engagement portion overlapping a reinforcing portion, providing support and protection from direct fluid impact, and a valve member that covers the communicating portion for sealing and pressure regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the engagement portion is positioned to engage with the case, then the gasket can be securely attached, but the fluid may directly hit the engagement portion causing disengagement or pressure loss
Solution Approach 1:
The reinforcing portion acts as an intermediary element between the inner wall and the engagement portion. It provides structural support to the engagement portion without being directly in the fluid path, thereby mediating between the need for secure attachment and the need to avoid fluid impact.
Solution Approach 2:
The reinforcing portion extends in the flow direction (adding a dimensional aspect) to provide support to the engagement portion. This dimensional extension allows the engagement portion to be supported from behind rather than being directly exposed to fluid impact from the front.
2Object-affected harmful factors
If the engagement portion is positioned away from the fluid path, then direct fluid impact is avoided, but the attachment strength may be reduced
Solution Approach 1:
The reinforcing portion serves as a mediator that transfers and distributes the attachment forces. By providing this intermediate structural element, the engagement portion can be positioned optimally for avoiding fluid impact while the reinforcing portion ensures adequate attachment strength through its connection to the inner wall.
Solution Approach 2:
The reinforcing portion is pre-positioned and connected to the inner wall before the engagement portion engages with the case. This preliminary structural preparation ensures that when the engagement portion is positioned to avoid fluid impact, the attachment strength is already established through the reinforcing portion's connection to the case.
3Reliability
If the reinforcing portion occupies a large area, then the engagement portion is well protected from fluid impact, but the flow path area is reduced causing pressure loss
Solution Approach 1:
The reinforcing portion provides localized support exactly where needed - at the position where the engagement portion requires protection from fluid impact. Rather than occupying a large area, it is strategically positioned to provide support only in the critical region, minimizing interference with the overall flow path.
Solution Approach 2:
The reinforcing portion provides just enough support to protect the engagement portion from fluid impact without excessive material occupation. The design uses the minimum necessary area to achieve the protective function while maintaining adequate flow path area, avoiding both insufficient support and excessive pressure loss.
Data Source
AI summary
A structural component is configured to be attached to a surface of a target object including a flow path. The structural component includes a case including a communicating portion that is configured to communicate with the flow path of the target object, and a reinforcing portion connected to at least two points on an inner wall of the communicating portion; and a gasket provided to the case on a downstream side in a flow direction of a fluid in the communicating portion, the gasket surrounding the communicating portion in a plan view. The gasket includes an engagement portion engaging the case, and at least a part of the engagement portion overlaps the reinforcing portion in the flow direction.