Gas cooking equipment
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Solution Overview
Problem
Existing gas cooktops face issues with noise generation and moisture penetration between the hob plate and the operating element, particularly due to the rotation of the sealing element during operation, which compromises the sealing effectiveness.
Innovation Solution
A gas hob design featuring a fastening element that is spring-loaded radially to press the sealing element against the opening wall, preventing rotation and moisture ingress, utilizing a resiliently deformable material like plastic or metallic components with a tubular prestressing section and disc-shaped bearing section, ensuring effective sealing and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sealing element is allowed to rotate with the operating element, then the operating element can be easily actuated, but noise is generated and the sealing effectiveness is compromised
Solution Approach 1:
The sealing element is divided into two functional sections: a fastening section that remains stationary to maintain sealing, and a sealing section that can rotate with the operating element to maintain ease of operation. This segmentation allows each part to fulfill its specific function without compromising the other.
Solution Approach 2:
The rotating capability is extracted from the fastening section and assigned only to the sealing section. The fastening section is fixed to prevent rotation, thereby eliminating noise and maintaining sealing effectiveness, while the sealing section retains rotational freedom for ease of operation.
2Object-affected harmful factors
If the sealing element is fixed against rotation, then noise is prevented and sealing is maintained, but the operating element cannot be easily actuated
Solution Approach 1:
The sealing element is divided into two functional sections: a fastening section that remains stationary to maintain sealing, and a sealing section that can rotate with the operating element to maintain ease of operation. This segmentation allows each part to fulfill its specific function without compromising the other.
Solution Approach 2:
The rotating capability is extracted from the fastening section and assigned only to the sealing section. The fastening section is fixed to prevent rotation, thereby eliminating noise and maintaining sealing effectiveness, while the sealing section retains rotational freedom for ease of operation.
3Object-affected harmful factors
If the fastening element applies strong radial pressure to prevent rotation, then sealing is improved, but the sealing element material must be highly durable
Solution Approach 1:
The fastening section of the sealing element is made from an elastically deformable material that can be compressed radially outward by the fastening element. This flexible membrane approach creates a tight seal against the opening wall, preventing moisture penetration while maintaining sealing effectiveness.
Solution Approach 2:
The fastening element applies radial compression force to deform the fastening section elastically outward, creating a tight seal. By changing the physical state of the sealing material through elastic deformation, the seal adapts to the opening wall geometry, effectively preventing moisture ingress.
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 noise generation and moisture penetration by ensuring the sealing element remains stationary during operation, enhancing the overall performance and durability of the gas cooktop.
Implementation Method 1
an elastically deformable sealing device can be provided between the control knob and a hob plate of the gas hob
Implementation Method 2
the fastening element is in a state received in the fastening section in a radial direction of the breakthrough is spring-loaded
Implementation Method 3
Radial pressing of the fastening section of the sealing element against the wall prevents moisture from penetrating between the wall and the fastening section from above the hob plate to below the hob plate
Implementation Method 4
Because the fastening element presses the fastening section of the sealing element radially against the wall of the opening, it is possible to prevent the sealing element from rotating with the operating element when the operating element is rotated
Data Source
Figure 1
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AI summary
The invention relates to a gas hob (1) with a hob plate (8), a gas valve (5), an operating element (15) which is non-rotatably connected to an actuating shaft (13) of the gas valve (5), for actuating the gas valve (5), a sealing element ( 18) which is arranged at least in sections between the operating element (15) and the hob plate (8) and which has a fastening section (19) which is received in an opening (11) provided in the hob plate (8), and a fastening element ( 25) which is accommodated at least in sections in the fastening section (19) and which is set up to press the fastening section (19) radially against a wall (12) of the opening (11).