Membrane Ventilation Component With Elastic Locking Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ventilation components struggle to remain securely attached to housing projections, leading to potential detachment and loss of ventilation effectiveness.
Innovation Solution
A ventilation component comprising an internal member with an elastic open tubular structure, a gas-permeable membrane, and an external member with a closed tubular structure. The internal member is fixed to the external member, allowing elastic deformation to form contact portions that securely attach the ventilation component to a housing projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the ventilation component uses a simple attachment structure to the housing projection, then the device complexity is reduced and ease of manufacture is improved, but the reliability of attachment and resistance to detachment deteriorates
Solution Approach 1:
The internal member is designed with elastic properties, allowing it to dynamically adapt to the housing projection. The elastic deformation enables the member to flex during attachment and maintain continuous contact pressure, ensuring reliable attachment without complex mechanical fasteners. This dynamic adaptation resolves the contradiction by providing secure attachment through material properties rather than structural complexity.
Solution Approach 2:
The patent utilizes changes in physical parameters of the elastic material, specifically its deformation characteristics and contact pressure. By controlling the elastic modulus and geometric parameters of the internal member, the design achieves reliable attachment through parameter optimization rather than complex structure. The elastic member's ability to change shape and maintain force through parameter control resolves the attachment reliability issue.
2Reliability
If the ventilation component uses elastic deformation to form contact portions, then the attachment reliability is improved and detachment is prevented, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The internal member is designed as an elastic shell structure that deforms to form contact portions with the housing projection. This flexible shell approach achieves reliable attachment through controlled deformation rather than complex assembly. The elastic member can be manufactured as a single piece using molding techniques, which maintains ease of manufacture while providing the necessary flexibility for secure attachment.
Solution Approach 2:
The ventilation component is segmented into distinct functional parts: the elastic internal member, the gas-permeable membrane, and the external member. This segmentation allows each part to be optimized independently for its specific function while simplifying manufacturing. The internal member handles attachment through elastic deformation, the membrane provides gas permeability, and the external member provides structural support, resolving the manufacturing complexity issue.
3Reliability
If the internal member is made entirely elastic to enable deformation, then the attachment reliability is improved, but the structural strength and durability may deteriorate
Solution Approach 1:
The ventilation component uses a composite structure combining elastic material for the internal member with other materials for the membrane and external member. This composite approach allows the elastic internal member to provide attachment reliability while the other components provide structural strength and durability. The gas-permeable membrane adds functional properties, and the external member provides rigid support, resolving the strength-durability contradiction.
Solution Approach 2:
The structure is segmented so that the elastic internal member is responsible only for attachment through deformation, while the external member and membrane provide structural integrity. This functional segmentation allows each component to be optimized for its specific role without compromising overall strength. The external member acts as a protective shell that maintains structural strength while the elastic internal member provides secure attachment.
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 the ventilation component from moving away from the housing projection, ensuring consistent ventilation performance and reducing the risk of detachment.
Implementation Method 1
a portion of an outer circumferential surface of the internal member is elastically deformed to form a first contact portion with a portion of an inner circumferential surface of the external member
Data Source
Figure 1A~1B
Figure 1C
Figure 2A~2B
AI summary
A ventilation component 1a includes an internal member 10, a gas-permeable membrane 20, and an external member 30. The internal member 10 includes an elastic material and has an open tubular structure. The gas-permeable membrane 20 covers one opening 13 of the internal member 10. The external member 30 has a closed tubular structure. The internal member 10 is fixed to the external member 30 to form a first contact portion 5c with a portion of an inner circumferential surface of the external member 30. The first contact portion 5c is placed between a center C10 and the one opening 13. An inner diameter of the external member 30 is larger than an outer diameter of the internal member 10 between the first contact portion 5c and the other opening 14. The external member 30 includes the protruding portion 31p forming the first contact portion 5c. A gap 30g is present by the protruding portion 31p.