Fluid Control Seal Layout for Multi-Level Pore Sealing
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Solution Overview
Problem
Existing fluid control assemblies face challenges in achieving optimal sealing performance due to the design of pore passages in seals, which can lead to leakage and reduced efficiency in fluid management systems.
Innovation Solution
The fluid control assembly incorporates a seal with pore passages arranged at different levels, increasing the length of the wall portion between passages, allowing the valve core to maintain contact and enhance sealing performance by preventing rotation tolerance during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pore passages are arranged at the same level of the seal, then the structure is simple, but the sealing performance is poor due to insufficient wall length between passages
Solution Approach 1:
The patent transitions from arranging all pore passages at the same axial level (2D arrangement) to distributing them across multiple axial levels (3D arrangement). This dimensional change increases the wall length between adjacent pore passages at the same level, thereby improving sealing performance without significantly complicating the overall structure.
2Reliability
If the valve core can rotate freely, then the operation is flexible, but rotation tolerance causes leakage and reduces sealing reliability
Solution Approach 1:
The patent modifies the geometric parameters of the seal by increasing the wall length between pore passages through multi-level arrangement. This parameter change enhances the seal's ability to maintain contact with the valve core, reducing rotation tolerance and improving sealing reliability while preserving operational flexibility.
3Reliability
If the wall length between pore passages is short, then the structure is compact, but leakage occurs and sealing performance deteriorates
Solution Approach 1:
By arranging pore passages across multiple axial levels rather than a single level, the patent effectively increases the wall length between passages without proportionally increasing the overall seal volume. This dimensional redistribution maintains compactness while improving sealing performance.
Data Source
AI summary
A fluid control assembly and a fluid control device are provided. The fluid control assembly is provided with an accommodation chamber and a communication port, the communication port being adjacent to the accommodation chamber. The fluid control assembly comprises a connector, a valve core and a sealing member. The connector comprises a side wall portion, the side wall portion forming at least part of the peripheral wall of the accommodation chamber; at least part of the valve core is positioned in the accommodation chamber. The sealing member comprises a sealing body portion, the sealing body portion being clamped between the side wall portion and the valve core. The sealing member comprises pore channels correspondingly communicating with the communication port.