Induction Hob Sensor Circuit Simplification
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Solution Overview
Problem
Existing cooking hobs, particularly induction hobs, require complex circuitry for temperature control using multiple temperature detecting parts, which increases manufacturing costs and technical complexity.
Innovation Solution
A cooking hob with multiple spatially distributed sensor elements that selectively couple with a control entity for temperature monitoring, using a simplified electrical circuit with switching means to forward temperature information to a control entity for processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple temperature detecting parts are used for controlling the cooking process, then temperature monitoring capability is improved, but circuit complexity increases
Solution Approach 1:
Multiple sensor elements are electrically merged into a single circuit configuration that interfaces with a single control entity input. The switching means enable multiple sensors to share common signal routing infrastructure, consolidating what would traditionally require separate dedicated circuit paths into a unified system.
Solution Approach 2:
Switching means act as intermediary components between the multiple sensor elements and the control entity. These intermediaries selectively connect different sensors to the control entity's single input port, enabling multiple sensors to communicate through a shared interface without requiring the control entity to have multiple input ports.
2Loss of information
If multiple sensor elements are connected to separate control inputs, then temperature information processing is improved, but manufacturing costs increase
Solution Approach 1:
The control entity's single input port is designed to universally accept temperature information from any of the multiple sensor elements through the switching means. This multi-functional input interface eliminates the need for multiple dedicated input ports, reducing component count and simplifying manufacturing while maintaining full temperature information processing capability.
3Adaptability or versatility
If a control entity with multiple input ports is used, then sensor element connectivity is improved, but device complexity increases
Solution Approach 1:
The system employs dynamic switching that allows the control entity to connect to different sensor elements at different times rather than maintaining simultaneous connections through multiple fixed input ports. The switching means dynamically reconfigure the electrical connection based on which sensor needs to be read, providing adaptability without requiring multiple static input ports.
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
This solution allows for reduced technical effort and manufacturing costs while effectively monitoring temperature information from multiple sensor elements, enabling efficient control of the cooking hob.
Implementation Method 1
sensor elements distributed in an area covered by the heating power transferring element... configured to gather information regarding the temperature of a piece of cookware placed on the cooking surface
Implementation Method 2
heating power transferring element, particularly an induction coil preferably provided below the cooking surface
Implementation Method 3
induction heating cooking device
Data Source
AI summary
The invention relates to a household cooking hob, particularly to an induction heating hob comprising a cooking surface (2) and a heating power transferring element, particularly an inductor or induction coil (3) preferably provided below the cooking surface (2), wherein at least two sensor elements (4) are distributed in an area covered by the heating power transferring element (3), the sensor elements (4) being configured to gather information regarding the temperature of a piece of cookware placed on the cooking surface (2), wherein an electrical circuit (5) is provided which comprises switching means (5.1) for providing a selective electrical coupling of one of said sensor elements (4) with a control entity (6).