Textile Sensor Support for Induction Hobs With Single-Point Wiring
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Solution Overview
Problem
Existing induction hobs face challenges in cost-effective production and series production due to complex and expensive sensor coil arrangements, particularly with the use of conductor foils and flexible printed circuits, which are difficult to manufacture and install.
Innovation Solution
A flexible support made of textile material with embedded electrical conductors and sensors, allowing for quick and reliable electrical connections, eliminates the need for expensive conductor foils and flexible printed circuits by using a textile support part with thin wires or multi-filaments, and incorporates temperature sensors for efficient pot detection and temperature monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductor foils and flexible printed circuits are used for sensor coil arrangements, then electrical connection reliability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces expensive conductor foils and flexible printed circuits with a textile support structure. The textile material serves as a flexible, cost-effective substrate that can be easily manufactured and replaced if needed, eliminating the complexity of traditional rigid conductor systems while maintaining electrical connection functionality through integrated conductive threads or traces in the textile.
Solution Approach 2:
The invention uses composite textile materials that combine insulating textile fibers with conductive elements (such as conductive threads, metal-coated fibers, or printed conductive patterns on textile). This composite approach provides both the mechanical flexibility of textile and the electrical conductivity needed for sensor coil arrangements, simplifying manufacturing compared to traditional separate conductor and support structures.
2Reliability
If conductor foils and flexible printed circuits are used for sensor coil arrangements, then electrical connection reliability is improved, but production cost increases
Solution Approach 1:
The patent replaces expensive conductor foils and flexible printed circuits with a textile support structure. The textile material serves as a flexible, cost-effective substrate that can be easily manufactured and replaced if needed, eliminating the complexity of traditional rigid conductor systems while maintaining electrical connection functionality through integrated conductive threads or traces in the textile.
3Measurement precision
If traditional sensor coil arrangements are used, then sensing accuracy is maintained, but installation time and complexity increase
Solution Approach 1:
The patent integrates the sensor coils directly into the textile support structure, combining the mounting substrate and the sensing elements into a single unified component. This integration allows the sensor coil arrangement to be installed as one piece rather than requiring separate mounting of coils and their electrical connections, significantly reducing installation time while preserving sensing accuracy through proper textile-based coil positioning.
Solution Approach 2:
The sensor coils are pre-positioned and electrically connected within the textile support structure during manufacturing. This preliminary arrangement of sensor coils on the textile substrate eliminates the need for complex on-site installation and wiring, allowing for quick deployment while ensuring precise coil positioning for accurate sensing performance.
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 simplifies the production and installation of induction hobs by reducing material costs and complexity, enabling flexible and reliable sensor coil arrangements while maintaining high temperature resistance and sensitivity, thus enhancing the overall efficiency and cost-effectiveness of the induction hob system.
Implementation Method 1
a plurality of sensors or inductive sensors, such as sensor coils for example, which are arranged below the hob plate and above the induction heating coil
Implementation Method 2
at least one induction heating coil which is arranged below the hob plate
Implementation Method 3
induction heating coils
Implementation Method 4
one temperature sensor or a plurality of temperature sensors can also be provided, wherein a temperature sensor can be arranged preferably close to the sensor coil or directly on the sensor or on the sensor coil
Data Source
AI summary
An induction hob has a hob plate, a plurality of induction heating coils which are arranged below the hob plate, and a plurality of sensor coils which are arranged below the hob plate and above the induction heating coils, and also temperature sensors. The sensor coils and the temperature sensors are arranged on a flexible support and electrical conductors make electrical contact with the sensor coils on the flexible support. The flexible support has a single common connection device for electrical contact to be made.