Induction heating device and induction hob with such an induction heating device
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Solution Overview
Problem
The assembly of induction hobs with induction heating coils is complicated due to the inaccessible electrical connections, which are often located below the coils, making it difficult to achieve a secure and efficient connection.
Innovation Solution
A flat coil support with a plug-in contact device mounted on its underside, allowing for limited mobility in a plane parallel to the coil carrier surface, enabling easy adjustment and compensation for positional tolerances, and featuring flexible contact lines and plug-in contacts that can be securely attached to the induction heating coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the electrical connection is located below the induction heating coils, then the coil structure is stable and compact, but the accessibility of the electrical connection during assembly deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the connector housing movable relative to the coil carrier through a defined movement path. This allows the electrical connection components to be dynamically accessible during assembly while maintaining a stable compact structure when assembled, resolving the contradiction between structural stability and assembly accessibility
2Stability of the object's composition
If the connector housing is rigidly fixed on the coil carrier, then the structural stability is improved, but the tolerance compensation capability deteriorates
Solution Approach 1:
The connector housing is designed with a defined movement path relative to the coil carrier, allowing it to move laterally to compensate for positioning tolerances during assembly. This dynamic capability enables tolerance compensation while maintaining structural stability through guided movement constraints
Solution Approach 2:
The patent changes the positional parameters of the connector housing by allowing movement within a defined path. This parameter change enables the system to adapt to manufacturing tolerances while maintaining stable operation within the allowed movement range
3Ease of manufacture
If the plug-in contact device is made accessible during assembly, then the assembly process is simplified, but the structural complexity increases
Solution Approach 1:
The connector housing is designed with controlled mobility through a defined movement path, providing assembly accessibility without requiring complex mechanisms. The guided movement simplifies the assembly process while keeping the structural complexity manageable through constraint-based design
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 design simplifies the assembly and enhances safety by allowing for easy and accurate electrical connections, compensating for positional inaccuracies and tolerances, thereby streamlining the production and installation process.
Implementation Method 1
an induction heating device (11), which has at least one induction heating coil (13a, 13b)
Implementation Method 2
an induction hob (50) with at least one induction heating device (11)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An induction heating device with two induction heating coils and a plug-in contact device has a flat coil support for the induction heating coils, the plug-in contact device being arranged on the underside of the coil support with the plug-in direction perpendicular to the surface of the coil support. On the underside of the coil carrier, the plug-in contact device has a plug housing that can move in a plane parallel to the surface of the coil carrier with a defined movement path. The plug housing has four receiving chambers which are open at the bottom and extend in a direction parallel to the plug-in direction, in each of which a plug-in contact is arranged. A contact line runs from the plug contact to the induction heating coil.