Double-Walled Kettle Sealing Ring Design to Prevent Water Ejection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Double-walled kettles with a common upper edge between the external and internal components lack effective sealing, risking water ejection and burns when tipped, due to inadequate sealing between the lid and the container.
Innovation Solution
Incorporating an internal radial projection on the pot and a sealing ring that axially contacts the lid's lower face to ensure a secure seal, along with a steam evacuation circuit to prevent water from escaping through the pouring spout when the kettle is tilted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double-walled kettle with common upper edge is used, then quieter operation and optimized water temperature maintenance are achieved, but the internal volume is not airtight and boiling water could be ejected
Solution Approach 1:
The sealing structure is divided into multiple components: a sealing ring with first and second sealing faces, an internal radial protrusion with a groove, and a lid with a lower face. Each component has a specific sealing function, creating a segmented sealing system that ensures airtightness while maintaining the double-walled structure.
Solution Approach 2:
The sealing ring acts as an intermediary element between the internal radial protrusion and the lid's lower face. It mediates the sealing function by providing contact surfaces that ensure airtight closure, preventing direct contact between the protrusion and lid while achieving the sealing effect.
2Device complexity
If the lid is designed to close the container without additional sealing components, then device complexity is reduced, but the seal between internal volume and outside is insufficient
Solution Approach 1:
The sealing ring functions as a flexible sealing element that can deform to conform to the contact surfaces of the internal radial protrusion and the lid's lower face. This flexibility ensures effective sealing even with minor variations in manufacturing tolerances or assembly conditions.
Solution Approach 2:
The sealing mechanism transitions from a simple single-point contact to a multi-dimensional sealing interface. The sealing ring provides both radial sealing (between the protrusion and ring) and axial sealing (between the ring and lid's lower face), creating a two-dimensional sealing system that enhances reliability.
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 ensures a reliable seal between the internal and external volumes, preventing water ejection and enhancing user safety by maintaining the water within the kettle even when it is tipped or inverted.
Implementation Method 1
the lower face of the lid being adapted to come into axial contact with the sealing ring when the lid closes the container to ensure a seal between the internal volume and the outside of the kettle
Implementation Method 2
a steam evacuation circuit configured to convey, outside the internal volume, steam generated within the internal volume during the boiling of water contained within the internal volume
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
This kettle comprises a container (4) defining an internal volume (6) and including an external casing (8) and an internal pot (10) which have a common upper edge (8A, 10A), a handle (12), a spout (14) and a lid (24). According to the invention, the internal pot (10) includes an internal radial protrusion and the kettle includes a sealing ring (30) received on the internal radial protrusion, the lower face (26) of the lid being adapted to come into axial contact with the sealing ring (30) to ensure a seal between the internal volume (6) and the exterior of the kettle.