FR2483727A2 - Inductor for domestic cooking ring - has truncated conical former providing uniform heat distribution - Google Patents
Inductor for domestic cooking ring - has truncated conical former providing uniform heat distribution Download PDFInfo
- Publication number
- FR2483727A2 FR2483727A2 FR8011941A FR8011941A FR2483727A2 FR 2483727 A2 FR2483727 A2 FR 2483727A2 FR 8011941 A FR8011941 A FR 8011941A FR 8011941 A FR8011941 A FR 8011941A FR 2483727 A2 FR2483727 A2 FR 2483727A2
- Authority
- FR
- France
- Prior art keywords
- coil
- inductor
- heat distribution
- truncated conical
- uniform heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
Description
La présente addition a trait au chauffage par induction de plaques métalliques, notamment de forme circulaire, telles que des fonds de récipients métalliques, que l'on chauffe parfois dans l'industrie, et, depuis peu, dans le secteur domestique, à l'aide de courants de
Foucault induits par une bobine inductrice parcourue par un courant à haute fréquence et située au voisinage desdites plaques.The present addition relates to the induction heating of metal plates, in particular of circular shape, such as the bottom of metal containers, which is sometimes heated in industry, and, recently, in the domestic sector, in using currents
Eddy induced by an induction coil traversed by a high frequency current and located in the vicinity of said plates.
Le brevet principal a pour objet un perfection- nement aux procédés de chauffage de plaques ou de récipients métalliques circulaires par induction qui permet de s'affranchir des inconvénients de la technique antérieure découlant du fait que les bobines inductrices conçues selon cette technique ne transmettaient pas L'énergie électromagnétique de façon homogène vers le fond du récipient métallique qu'il s'agit de chauffer. The main patent relates to an improvement in the heating methods of circular metal plates or containers by induction which overcomes the disadvantages of the prior art arising from the fact that the induction coils designed according to this technique did not transmit L electromagnetic energy homogeneously towards the bottom of the metal container to be heated.
Ce perfectionnement selon le brevet principal se caractérise principalement en ce que lon répartit la den sité radiale des spires de la bobine inductrice et/ou l'on modifie son profil radial de façon å obtenir une puissance de chauffage pratiquement constante tout le long du rayon du fond du récipient. This improvement according to the main patent is mainly characterized in that the radial density of the turns of the induction coil is distributed and / or its radial profile is modified so as to obtain a practically constant heating power throughout the radius of the bottom of container.
On conçoit en effet, qu'en agissant sur les pa ramettes que constituent la densité des spires en chaque point du rayon de la bobine et/ou l'éloignement de ces mêmes spires par rapport à.la plaque métallique que l'on désire chauffer, on puisse ainsi réaliser une égalisation de la puissance transmise en chacun des points de la plaque métallique circulaire. It is in fact conceivable that by acting on the paddles which constitute the density of the turns at each point of the radius of the coil and / or the distance of these same turns relative to the metal plate which it is desired to heat. , we can thus achieve an equalization of the power transmitted at each point of the circular metal plate.
La présente addition a pour objet une nouvelle forme de bobine inductrice, particulièrement simple à réaliser, et qui permet, en répartissant l'éloignement des spires par rapport à la plaque métallique à chauffer, une excellente répartition de la puissance de chauffage sur la majeure partie de ladite plaque. The present addition relates to a new form of inductor coil, particularly simple to make, and which allows, by distributing the distance of the turns relative to the metal plate to be heated, an excellent distribution of the heating power over most of it. of said plate.
Cette bobine inductrice se caractérise essentiellement en ce qu'elle est constituée d'un fil conducteur enroulé en spirale selon une surface ayant la forme d'un cône droit de section circulaire dont le sommet est voisin du centre de la plaque chauffante et la base circulaire a sensiblement le diamètre de ladite plaque. This induction coil is essentially characterized in that it consists of a conductive wire wound in a spiral on a surface having the shape of a straight cone of circular section whose apex is close to the center of the heating plate and the circular base has substantially the diameter of said plate.
La forme conique circulaire de la bobine objet de la présente addition permet, notamment, un accroissement sensible de la puissance électrique transmise à la périphérie de la plaque métallique chauffante, ce qui contribue à l'égalisation de cette puissance selon le rayon de la plaque. The circular conical shape of the coil object of this addition allows, in particular, a significant increase in the electrical power transmitted to the periphery of the metal heating plate, which contributes to the equalization of this power according to the radius of the plate.
Par ailleurs, la conicité de ladite bobine n'a pas besoin d'être très prononcée (la hauteur du tronc de cône correspondant à l'enroulement est, par exemple, de l'ordre du dixième du diamètre de la base), ce qui est un avantage au point de vue de l'encombrement. Furthermore, the conicity of said coil does not need to be very pronounced (the height of the truncated cone corresponding to the winding is, for example, of the order of one tenth of the diameter of the base), which is an advantage from the point of view of space.
De toute façon, l'invention sera mieux comprise en se référant à la descr-iption qui suit d'un exemple de mise en oeuvre des perfectionnements aux procédés de chauffage par induction, objet de l'invention, description qui sera faite en se référant à la figure unique représentant en coupe élévation une bobine en forme de cône circulaire. Anyway, the invention will be better understood by referring to the following description of an example of implementation of the improvements to the induction heating methods, object of the invention, description which will be made with reference in the single figure showing in section elevation a coil in the shape of a circular cone.
On voit sur la figure unique la plaque chauffante 10 avec, au-dessous de celle-ci, la bobine inductrice 10 constituée d'un fil conducteur enroulé en spirale selon un cône droit de section circulaire, dont le sommet Il est voisin de la zone centrale de la plaque 4 et dont la base circulaire 12 est parallèle à la plaque 4 et sensiblement de même diamètre qu'elle. We see in the single figure the heating plate 10 with, below it, the induction coil 10 consisting of a conductive wire wound in a spiral according to a straight cone of circular section, the top of which is close to the zone central of the plate 4 and whose circular base 12 is parallel to the plate 4 and substantially the same diameter as it.
Dans l'exemple décrit, le diamètre de la base circulaire 12 de la bobine inductrice 10 est de 200 mm et la hauteur h du tronc de cône constitué par l'enroulement est de 25 mm. La bobine 10 a 30 spires de fil et son coefficient de self-induction est de 840iH. In the example described, the diameter of the circular base 12 of the induction coil 10 is 200 mm and the height h of the truncated cone formed by the winding is 25 mm. The coil 10 has 30 turns of wire and its self-induction coefficient is 840iH.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8011941A FR2483727A2 (en) | 1980-05-29 | 1980-05-29 | Inductor for domestic cooking ring - has truncated conical former providing uniform heat distribution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8011941A FR2483727A2 (en) | 1980-05-29 | 1980-05-29 | Inductor for domestic cooking ring - has truncated conical former providing uniform heat distribution |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2483727A2 true FR2483727A2 (en) | 1981-12-04 |
Family
ID=9242468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8011941A Withdrawn FR2483727A2 (en) | 1980-05-29 | 1980-05-29 | Inductor for domestic cooking ring - has truncated conical former providing uniform heat distribution |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2483727A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615836A1 (en) * | 1986-05-10 | 1987-01-08 | Wieland Hingst | Method for inductive heating of materials in the form of wafers |
FR2750562A1 (en) * | 1996-06-28 | 1998-01-02 | Europ Equip Menager | PROCESS FOR OPTIMIZING INDUCTION COOKING INDUCERS AND THUS OPTIMIZED INDUCERS |
WO2019092653A1 (en) * | 2017-11-10 | 2019-05-16 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Induction heater for a cook top |
-
1980
- 1980-05-29 FR FR8011941A patent/FR2483727A2/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615836A1 (en) * | 1986-05-10 | 1987-01-08 | Wieland Hingst | Method for inductive heating of materials in the form of wafers |
FR2750562A1 (en) * | 1996-06-28 | 1998-01-02 | Europ Equip Menager | PROCESS FOR OPTIMIZING INDUCTION COOKING INDUCERS AND THUS OPTIMIZED INDUCERS |
EP0817530A1 (en) * | 1996-06-28 | 1998-01-07 | Compagnie Europeenne Pour L'equipement Menager "Cepem" | Method for optimising the inductors of an induction cooktop and thus optimised inductors |
WO2019092653A1 (en) * | 2017-11-10 | 2019-05-16 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Induction heater for a cook top |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Withdrawal of published application |