A modular power transmitting system comprises multiple transmitter modules being connected together for transmitting power inductively to a receiver. The transmitter module is connected with other transmitter modules for transmitting power inductively to the receiver, wherein the transmitter module (40) comprises at least one transmitter cell (30), each transmitter cell having one transmitter coil (33) by which the transmitter cell transmitting power to the receiver, the transmitter module having an outer periphery (45) being shaped so as to fit to neighboring transmitter modules for forming an power transmitting surface, the at least one transmitter cell being arranged such that the power transmitting surface is constituted by an uninterrupted pattern of adjacent transmitter coils extending in said surface, and interconnection units (110,111) for connecting with neighboring transmitter modules for sharing a power supply.

Transmitter module for use in a modular power transmitting system

This paper reports a newly designed class of strongly coupled planar coil structures for the purpose of enhanced induction over large areas. These new architectures feature a squircle shape at the outer rim with rounded corners and straight sides evolved into a fully circular shape in the inner side, which proves to be essential to achieve high efficiency in arrays and all-surface inductive heating. As a proof-of-demonstration, a simple inductive heating system composed of a pair of side-by-side placed coils was constructed together with a ferrite layer. Experiments were repeated for 0° and 180° phase differences between coil currents. Here, the system efficiency was shown to be increased overall by 37.4% using outer squircle–inner circular coils instead of conventional circular coils. This comparative study indicates that the proposed coil architecture offers the potential for large-area, fast, and phase-insensitive inductive heating with high efficiency.

/pdf/strongly-coupled-outer-squircle-inner-circular-coil-1s5v3ehv1v.pdf

Strongly Coupled Outer Squircle–Inner Circular Coil Architecture for Enhanced Induction Over Large Areas

An induction heating element including a circular inductor coil that has a circular outer contour and a ferrite element arrangement that has at least one ferrite element with a radially outer edge. At least at one curvature point, the radially outer edge of the ferrite element is curved to a greater degree than the circular outer contour of the inductor coil.

Induction heater comprising a circular inductor coil

All-surface induction heating systems, typically comprising small-area coils, face a major challenge in detecting the presence of a metallic vessel and identifying its partial surface coverage over the coils to determine which of the coils to power up. The difficulty arises due to the fact that the user can heat vessels made of a wide variety of metals (and their alloys). To address this problem, we propose and demonstrate a new wireless detection methodology that allows for detecting the presence of metallic vessels together with uniquely sensing their surface coverages while also identifying their effective material type in all-surface induction heating systems. The proposed method is based on telemetrically measuring simultaneously inductance and resistance of the induction coil coupled with the vessel in the heating system. Here, variations in the inductance and resistance values for an all-surface heating coil loaded by vessels (made of stainless steel and aluminum) at different positions were systematically investigated at different frequencies. Results show that, independent of the metal material type, unique identification of the surface coverage is possible at all freqeuncies. Additionally, using the magnitude and phase information extracted from the coupled coil impedance, unique identification of the vessel effective material is also achievable, this time independent of its surface coverage.

Wireless Metal Detection and Surface Coverage Sensing for All-Surface Induction Heating

The present invention relates to an induction cooking top comprising a system adapted to modify the control of the presence of the pan on the induction cooking top, upon a command by the user.

Induction cooking top

The zone has induction coils (2) placed regularly under a non magnetic support plate (12) and connected to independent generators for producing magnetic field on whole cooking surface. The induction coils are regrouped by a module (1) and fixed on a support. The support has a concave central zone whose maximal radius of curvature is equal to an outer radius of an end of the module.

Assembling module of induction coils of a induction heating cooking area and cooking area including the said modules

The invention concerns a component for a double-sided printed circuit with non-plated vias, consisting of a part (10) made of electrically conductive material including two elongated pins (12) adapted to pass respectively through two vias of the printed circuit and integral with a flat enlarged portion (11) extending perpendicularly to the elongated pins (12). The invention is useful for electrical connection between two strip conductors of a double-sided printed circuit.

Component, double-sided printed circuit board and method for making an electrical connection of a double-sided printed circuit

The component (10) has a part made of electrically conductive material and including extended pins (12) for traversing a non-metallised through hole of a printed circuit board. A flat expanded plate (11) extends perpendicularly to the pins and has a rectangular form. The component is U shaped and the expanded plate forms the base of the component. The expanded plate is symmetrically extended by the pins. An independent claim is also included for a process for realizing an electric connection between two conductive tracks disposed on two respective sides of a printed circuit board.

Double-sided printed circuit board component, has flat expanded plate extending perpendicularly to extended pins that traverse through hole of printed circuit board, and symmetrically extended by pins

L'invention se rapporte a une zone de cuisson par chauffage par induction comprenant des modules d'assemblage 1 de bobines d'induction 2. Plus precisement l'invention se rapporte a une zone de cuisson, permettant de chauffer par induction au moins un recipient de cuisson place sur une plaque support amagnetique constituant le dessus de la zone de cuisson, ladite zone de cuisson comportant au moins deux bobines d'induction 2 placees sous la plaque support et reliees a des generateurs independants. La presente invention permet de creer des zones de cuisson de chauffage par induction comprenant de nombreuses bobines d'induction 2 agencees regulierement pour produire des champs magnetiques reguliers sur toute la surface de cuisson tout en etant simple a assembler industriellement.

Module d'assemblage de bobines d'induction d'une zone de cuisson par chauffage par induction et zone de cuisson comprenant lesdits modules

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Assembling module of induction coils of a induction heating cooking area and cooking area including the said modules

Component, double-sided printed circuit board and method for making an electrical connection of a double-sided printed circuit

Double-sided printed circuit board component, has flat expanded plate extending perpendicularly to extended pins that traverse through hole of printed circuit board, and symmetrically extended by pins

Module d'assemblage de bobines d'induction d'une zone de cuisson par chauffage par induction et zone de cuisson comprenant lesdits modules