Cooking Hob Vibration Sensor Assembly to Prevent Relative Movement
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Solution Overview
Problem
Existing cooking appliances, particularly cooking hobs, face challenges in accurately monitoring cooking progress due to inadequate assembly and placement of vibration sensors, leading to suboptimal measuring results during automatic cooking processes.
Innovation Solution
A cooking appliance with a carrying plate equipped with a vibration sensor, where the sensor is securely attached using a rigid frame and a sealing frame to prevent relative movement, connected to a data bus for effective vibration detection and transmission, ensuring accurate monitoring of cooking processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the vibration sensor is loosely attached to the carrying plate, then the device complexity is reduced, but the measurement precision deteriorates due to relative movement between sensor and plate
Solution Approach 1:
The patent applies preliminary action by pre-structuring the carrying plate with integrated attachment features (magnetic elements, mechanical clips, or adhesive layers) that automatically secure the vibration sensor in a fixed position during assembly. This preliminary structural preparation eliminates the need for complex post-assembly adjustments while ensuring precise, repeatable sensor positioning that prevents relative movement and maintains measurement accuracy.
2Measurement precision
If the vibration sensor is securely fixed to the carrying plate, then the measurement precision is improved, but the ease of manufacture deteriorates due to additional assembly steps
Solution Approach 1:
The patent merges the vibration sensor attachment function with the carrying plate structure itself by integrating magnetic elements, mechanical clips, or adhesive layers directly into the plate design. This consolidation eliminates separate attachment components and simplifies the assembly process to a single step, while simultaneously ensuring secure sensor fixation that prevents relative movement and maintains high measurement precision.
3Reliability
If a rigid frame structure is used to secure the sensor, then the reliability of vibration detection is improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by implementing rigid structural support and precise positioning features only at the specific locations where the vibration sensor contacts the carrying plate, rather than constructing a complete rigid frame around the entire sensor. This localized reinforcement provides sufficient reliability for stable sensor positioning while avoiding the unnecessary structural complexity of a full-frame enclosure.
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 secure attachment and connection of the vibration sensor to the carrying plate enhance the accuracy and reliability of vibration detection, supporting better monitoring and control of cooking processes, particularly for liquids boiling on the hob.
Implementation Method 1
at least one sensing means (20) for the detection of vibration which is generated when food to be cooked and/or cooking adjuvant inside of the cookware is heated up
Implementation Method 2
which carrying plate transmits vibration movements from a cookware to the vibration sensor
Data Source
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AI summary
The present invention relates to a cooking appliance with at least one carrying plate (3) adapted to receive cookware placed thereon, in particular a cooking hob (1) with a top plate or with a system comprising a top plate and at least one pan support. At least one sensing means for the detection of vibration is comprised. The vibration is generated when food to be cooked and/or cooking adjuvant inside of the cookware is heated up. The food to be cooked and/or cooking adjuvant may be a cooking liquid. A vibration sensor is attached to the carrying plate (3) by way of fixation means which prevent relative movement between the vibration sensor and the carrying plate (3), in particular in the direction towards and/or away from each other. Further, a method for assembling a vibration sensor to a carrying plate (3) of a cooking appliance, particularly to a top plate of a cooking hob (1), is disclosed. The carrying plate (3) transmits vibration movements from a cookware to the vibration sensor. The assembly comprises the assembling steps: - a first rigid frame part (23) is rigidly connected to the carrying plate (3), preferably in a first assembling step; and - the vibration sensor is connected to the first rigid frame part (23) in a way that prevents relative movement between vibration sensor and carrying plate (3), in particular in the direction towards and/or away from each other, preferably in a second assembling step.