Alternating Induction Heating Units for Power Distribution and Vibration Control
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Solution Overview
Problem
Existing induction heating devices lack efficiency and comfort due to uneven power distribution and increased acoustic vibrations when operating multiple induction heating units, particularly in boost modes.
Innovation Solution
The induction heating device operates multiple induction heating units alternately in a boost mode, utilizing a control unit to manage heating frequency units that provide high-frequency energy, ensuring efficient power distribution and reduced acoustic vibrations by alternating operation and direct connection of units, thereby optimizing power usage and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple induction heating units are operated simultaneously in boost mode, then power delivery capability is improved, but acoustic vibrations increase and efficiency decreases
Solution Approach 1:
The patent applies periodic action by alternating the operation of multiple induction heating units in time-separated intervals rather than simultaneous operation. The control unit switches between different heating units in a cyclic manner, providing periodic heating cycles that maintain power delivery capability while reducing continuous acoustic vibrations. This temporal separation of operation eliminates the叠加 effect of simultaneous vibrations from multiple units.
2Power
If multiple heating frequency units are used to supply power, then power distribution capability is improved, but device complexity increases
Solution Approach 1:
The patent merges the control functions for multiple heating frequency units into a single integrated control unit. This central control unit manages and coordinates the operation of multiple heating frequency units and induction heating units, providing unified power distribution capability while reducing overall device complexity through functional integration and centralized management.
Solution Approach 2:
The control unit is designed with multi-functionality to perform multiple roles: it controls heating frequency units, manages alternating operation of induction heating units, monitors system state, and coordinates power distribution. This universal control approach allows a single unit to handle diverse functions that would otherwise require separate dedicated components, thereby reducing device complexity while maintaining enhanced power distribution capability.
3Object-affected harmful factors
If induction heating units are operated alternately, then acoustic vibrations are reduced, but continuous power delivery is compromised
Solution Approach 1:
The patent ensures continuity of useful action by implementing a seamless alternating operation scheme where multiple induction heating units are switched in rapid succession. The control unit manages the transitions between units to maintain continuous heating output, ensuring that as one unit completes its cycle, another unit immediately takes over. This continuous handover mechanism preserves productivity and power delivery while the temporal separation of individual unit operations reduces acoustic vibrations.
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 enhances efficiency and comfort by ensuring even power distribution, reducing wear on components, and providing sufficient power for multiple induction heating units, while also achieving cost savings through the use of fewer, more efficient heating frequency units.
Implementation Method 1
The induction heating element is intended to convert electrical energy into an alternating magnetic field, which is intended to cause eddy currents and/or magnetic reversal effects in a metallic, preferably at least partially ferromagnetic, heating medium, in particular a cooking utensil, which are converted into heat.
Implementation Method 2
The induction heating element is intended to convert electrical energy into an alternating magnetic field, which is intended to cause eddy currents and/or magnetic reversal effects in a metallic, preferably at least partially ferromagnetic, heating medium
Implementation Method 3
The induction heating element is intended to convert electrical energy into an alternating magnetic field, which is intended to cause eddy currents and/or magnetic reversal effects in a metallic, preferably at least partially ferromagnetic, heating medium
Implementation Method 4
A 'heating frequency unit' is to be understood in particular as an electrical unit which generates an oscillating electrical signal, preferably with a heating frequency of at least 1 kHz, in particular of at least 10 kHz, advantageously of at least 20 kHz and in particular of a maximum of 100 kHz for an induction heating unit.
Data Source
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AI summary
The invention relates to an induction heating device, in particular an induction hot plate device, comprising at least one control unit (34), at least two heating frequency units (30, 32) and at least two induction heating units (20, 22, 24, 26). The aim of the invention is to provide a device of said type with improved efficiency. As such, the control device (34) is designed to operate said induction heating units (20, 22, 24, 26) respectively in a boost mode, in at least one operational mode in which said at least two induction heating units (20, 22, 24, 26) operate alternatively.