• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Cooking appliance device. The invention relates to a cooking appliance device (10a-d), in particular, to a cooking hob device, with at least one heating unit (12a-d) having at least one interior heating element (14a-d) and at least one outer heating element (16a-d), and with at least one overlapping magnetic flux concentrating element (20a-d) disposed overlapping on top of the heating elements (14a-d, 16a- d) when the heating unit (12a-d) is viewed perpendicularly on the main extension plane. In order to provide a generic cooking appliance device with better heating properties, it is proposed that the areas (22a-d) of a minimum distance between the heating elements (14a-d, 16a-d) do not present overlapping magnetic flux concentration elements (20a-d, 32a-d). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2684168A1
    申请号:ES201730495
    申请日:2017-03-30
    公开日:2018-10-01
    发明作者:Cristina Diez Esteban；Jorge FELICES BETRAN；Pablo Jesus Hernandez Blasco；Izaskun JACA EQUIZA；Ignacio Lope Moratilla；Maria Elena Moya Albertin
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

    DESCRIPTION

    Cooking device.

    The present invention refers to a cooking appliance device according to the preamble of claim 1.

    Through the state of the art, a cooking device device made as a cooking hob device with a heating unit is already known. The heating unit has an internal heating element and an essentially polygonal external heating element 10. The external heating element has a main extension plane and a direction of the main extension. When the heating unit is perpendicularly observed on the main extension plane, the external heating element has an essentially rectangular conformation, and the internal heating element has an essentially circular conformation. A concentration unit of the magnetic flux has several overlapping magnetic flux concentration elements, which are arranged overlapping on the heating elements when the heating unit is perpendicularly observed on the main extension plane. A part of the concentration elements of the magnetic flux is arranged in areas of a minimum distance between the heating elements, in particular, along two main axes 20 of the heating unit. From such an arrangement of the elements of concentration of the magnetic flux in areas of minimum distance between the heating elements and, along this, along the main axes, an irregular distribution of heat results in the base of the cooking battery to be heated. This irregular distribution of heat manifests itself in particular through heat points and poor performance.

    The present invention solves the technical problem of providing a generic cooking appliance device with better heating properties. According to the invention, this technical problem is solved by the features of claim 1, while advantageous embodiments and improvements of the invention can be extracted from the secondary claims.

    The invention refers to a cooking appliance device, in particular, to a cooking hob device, with at least one heating unit having at least one internal heating element and at least one approximate external heating element or exactly polygonal, where at least one of the heating elements has a main extension plane, and with at least one unit of concentration of the magnetic flux that is intended to concentrate the magnetic flux provided by the heating unit, and which presents the less an overlapping magnetic flux concentration element 40, which is arranged overlapped on the heating elements when the heating unit is perpendicularly observed on the main extension plane, where, in an aspect of the invention that can be considered separately or combined with other aspects of the invention, it is proposed that, when observing p The heating unit perpendicularly on the main extension plane, the areas 45 of a minimum distance between the heating elements do not have overlapping magnetic flux concentration elements.

    By means of the embodiment according to the invention, advantageous properties in terms of heating can be achieved. In addition, it is possible to achieve optimum performance. In particular, an optimized surface heating can be achieved in comparison to a heating unit in which overlapping magnetic flux concentration elements are arranged in the areas of minimum distance between the heating elements. Thus, hot spots in distance areas can be advantageously removed
    minimum between heating elements. Thanks to the optimized surface heating, it is possible that the cooking result is independent of the position of the cooking battery in question. By means of the approximate or exactly polygonal outer heating element, it is possible that two heating units of analogous structure are compactly arranged relative to each other and / or that the free surface between two two heating units of analogous structure, which are arranged adjacent to each other, be minimal, so that an optimized surface heating can be achieved preferably compared to two heating units adjacent to each other, each with two external heating elements that differ from an approximate or exactly polygonal. An optimized distribution of heat 10 in the supported cooking battery is made possible. Also, a simple manufacturing process of the heating unit can be achieved. In areas that differ from the areas of minimum distance between the heating elements, sufficient space can be achieved to provide at least one other unit, for example, a sensor unit. In addition, heating of the cooking battery can be improved. The principle that the areas of minimum distance between the heating elements do not have overlapping magnetic flux concentration elements can be applied to various configurations and / or combinations of configurations of the internal heating element and the external heating element.
     twenty
    The term "cooking appliance device", in particular, "cooking hob device" and, advantageously, "induction cooking hob device" includes the concept of at least one part, namely, a construction subgroup , of a cooking apparatus, in particular, of a cooking hob and, advantageously, of an induction cooking hob. The cooking appliance having the cooking appliance device could be, for example, a cooking oven and / or a microwave oven and / or a grill appliance and / or a steam cooking appliance. Advantageously, a domestic appliance made as a cooking appliance is a cooking hob and, preferably, an induction cooking hob.
     30
    The term "heating unit" includes the concept of a unit that is intended to heat and / or heat the cooking battery resting on it. The term "heating element" includes the concept of an element that is intended to transform energy, preferably electrical energy, into heat and to supply it to at least one cooking battery. Advantageously, the heating element is made as an induction heating element and is preferably provided to generate an alternating electromagnetic field with a frequency between 20 kHz and 100 kHz, which is intended to be transformed into heat at the base. of a metallic cooking battery, preferably ferromagnetic, resting on it, through the induction of eddy currents and / or magnetic inversion effects. 40

    Advantageously, the heating unit has exactly one internal heating element and exactly one external heating element. The interior heating element is made as the innermost heating element of the heating unit. The external heating element is made as the outermost heating element of the heating unit.

    When the heating unit is perpendicularly observed on the main extension plane, the external heating element has an approximate or exactly polygonal conformation. The term "approximately or exactly 50 polygonal" heating element includes the concept of a heating element which, when the heating unit is perpendicularly observed on the main extension plane, has at least two rectilinear edges that are arranged obliquely and / or angularly relative to each other. The rectilinear edges of the approximate heating element or
    exactly polygonal they enclose a minimum angle between 0º (not included) and 90 ° even when the heating unit is perpendicularly observed on the main extension plane. The rectilinear edges of the approximate or exactly polygonal heating element are not displaced relative to each other by 180 ° when the heating unit is perpendicularly observed on the main extension plane, and 5 have at least one point of intersection if they extend imaginary. edges.

    Advantageously, when the heating unit is perpendicularly observed on the main extension plane, the approximate or exactly polygonal heating element has at least three and, particularly advantageously, at least four rectilinear edges, of which at least two adjacent edges of each other are oriented approximately or exactly perpendicular to each other. Alternatively or additionally, when the heating unit is perpendicularly observed on the main extension plane, the approximate or exactly polygonal heating element could have a greater amount of rectilinear edges, for example, at least six and / or at least eight and / or at least twelve.

    The term "main extension plane" of an object includes the concept of a plane that is parallel to the larger lateral surface of the smaller imaginary geometric parallelepiped that completely wraps the object, and which runs through the central point of the parallelepiped 20 .

    The magnetic flux concentration unit and, in particular, the overlapping magnetic flux concentration element, is composed largely or entirely of ferrites, which are ferromagnetic ceramic materials. The expression "in large or in whole" 25 includes the concept of at least 70%, preferably, at least 80%, advantageously, at least 90% and, preferably, 95% As minimum.

    The term "ferrites" includes the concept of ferromagnetic and / or ferrimagnetic ceramic materials. The magnetic flux concentration unit is intended to improve the coupling between the heating unit and at least one cooking battery resting on top of it, which is arranged in the installation position at least partially above the heating unit. Likewise, the magnetic flux concentration unit is provided to considerably intensify the magnetic flux provided by the heating unit and, thereby, intensify and / or increase the heat losses induced in the cooking battery, in particular, in the base of the cooking battery, compared to an embodiment that does not have a magnetic flux concentration unit. In addition, the magnetic flux concentration unit is provided to partially or completely shield at least one location with respect to the magnetic flux provided by the heating unit. Also, the magnetic flux concentration unit is intended to minimize the dispersion fields provided by the heating unit.

    The overlapping magnetic flux concentration element is associated with the heating elements. The expression that a magnetic flux concentration element is "associated" with a heating element includes the concept that the magnetic flux concentration element at least partially concentrates the magnetic flux provided by the heating element at least a state of operation in which the heating element is activated and provides a magnetic flux 50. A magnetic flux concentration element that is associated with the heating elements concentrates in at least one operating state at least partially the respective magnetic flux provided by all the heating elements that are in operation of the heating elements, at
    which is associated the element of concentration of the magnetic flux. The expression that a concentration element of the magnetic flux concentrates a magnetic flux "at least partially" includes the concept that the concentration element of the magnetic flux concentrates only the magnetic flux or that the concentration element of the magnetic flux concentrates the magnetic flux together with at least a second 5 concentration element of the magnetic flux.

    The overlapping magnetic flux concentration element is arranged in an area close to at least one of the heating elements and, advantageously, in an area close to each of the heating elements. When the main extension plane of at least one of the heating elements is observed perpendicularly at least 10, the overlapping magnetic flux concentration element is arranged largely or completely within a surface laid by the heating elements. The concentration element of the overlapping magnetic flux has no saturation.
     fifteen
    The overlapping magnetic flux concentration element is made as a rod and / or as a rod and / or as a block, whereby the costs can be low compared to a plate-shaped magnetic flux concentration element consisting of ferrites, which could extend over the entire surface of the heating unit when the heating unit is perpendicularly observed on at least the main extension plane of at least one of the heating elements of the heating unit.

    When the heating unit is perpendicularly observed on the main extension plane, the overlapping magnetic flux concentration element is arranged at least partially within the surface laid by the internal heating element and, additionally, at least partially within the surface laid by the external heating element.

    In the areas of minimum distance between the heating elements, 30 magnetic flux concentration elements are not arranged when the heating unit is perpendicularly observed on the main extension plane. The areas of minimum distance between the heating elements have no magnetic flux concentration elements if the heating unit is perpendicularly observed on the main extension plane.
     35
    The term "intended" includes the concepts of conceived and / or specifically provided. The expression that an object is intended for a particular function includes the concept that the object satisfies and / or performs this particular function in one or more application and / or operating states.
     40
    In another aspect of the invention that can be considered separately or in combination with other aspects of the invention, it is proposed that, when the heating unit is perpendicularly observed on the main extension plane, the areas around at least a first major axis of the heating unit, which is oriented approximately or exactly perpendicular to at least one edge and, in particular, at least two edges 45 opposite each other, of the approximate or exactly polygonal conformation of the external heating element, and about at least a second main axis of the heating unit, which is oriented approximately or exactly perpendicular to the first main axis, does not have overlapping magnetic flux concentration elements. The heating unit has at least a first main axis and, additionally, at least a second main axis, which is oriented approximately or exactly perpendicular to the first main axis. When the heating unit is perpendicularly observed on the main extension plane, the first main axis and the second main axis extend through the areas of minimum distance between the elements of
    heating and, advantageously, approximately or exactly centrally. When the heating unit is perpendicularly observed on the main extension plane, the minimum distance areas between the heating elements are arranged approximately approximately or exactly symmetrically symmetrically. If the heating unit is perpendicularly observed on the main extension plane, the first main axis and / or the second main axis extend through the center and / or the center of gravity of the heating unit. The first main axis and the second main axis are cut at the center and / or center of gravity of the heating unit when the heating unit is perpendicularly observed on the main extension plane. The expression "approximately or exactly perpendicularly" includes the concept of the orientation of a direction relative to a reference direction, where, observed in a plane, the direction and the reference direction enclose an angle of 90 ° and the angle present a maximum deviation of less than 8 °, advantageously, less than 5 ° and, particularly advantageously, less than 2 °. When the heating unit is perpendicularly observed on the main extension plane, the first main axis and / or the second main axis 15 are oriented essentially perpendicular to at least one edge and, in particular, to at least two opposite edges. , of the approximate or exactly polygonal conformation of the external heating element. In this way, optimized surface heating can be achieved.
     twenty
    Furthermore, it is proposed that, when the heating unit is perpendicularly observed on the main extension plane, the longitudinal axis of the overlapping magnetic flux concentration element encloses with the first main axis a minimum angle of at least 5 °, preferably, of at least 10 °, advantageously, at least 12 ° and, preferably, at least 15 °. If the heating unit is perpendicularly observed on the main extension plane, the longitudinal axis of the overlapping magnetic flux concentration element encloses with the first main axis a minimum angle of a maximum of 40 °, preferably, a maximum of 35 °, advantageously, 32 ° maximum and, preferably, 30 ° maximum. The term "longitudinal axis" of an object includes the concept of an imaginary line of infinite extension, which is oriented parallel to the larger side of the smaller imaginary geometric parallelepiped that completely wraps around the object, and which runs through of the central point and / or the center of gravity of the object. In this way, the appearance of hot spots can be prevented in a directed manner, thereby achieving high efficiency. In particular, it is possible to optimize the heat distribution at the base of the cooking battery heated by the heating unit. 35

    By way of example, the magnetic flux concentration unit could exclusively present the overlapping magnetic flux concentration element. However, the magnetic flux concentration unit preferably has at least a second overlapping magnetic flux concentration element, which is arranged together with the overlapping magnetic flux concentration element within a quadrant laid by the main axes. , when the heating unit is perpendicularly observed on the main extension plane. The magnetic flux concentration unit has at least one quadrant of the overlapping magnetic flux element and at least a second overlapping magnetic flux concentration element, which are arranged together in the corresponding quadrant. The overlapping magnetic flux concentration element and the second overlapping magnetic flux concentration element could be structured and / or performed analogously to each other, so that low costs and / or reduced storage and / or a process can be achieved of simple manufacture. The second concentration element of the overlapping magnetic flux could have a second longitudinal extension, which could be differentiated from the longitudinal extent of the concentration element of the overlapping magnetic flux. The second longitudinal extension of the second overlapping magnetic flux concentration element could be greater than the longitudinal extension of the overlapping magnetic flux concentration element. How
    alternatively, the second longitudinal extension of the second concentration element of the overlapping magnetic flux could be smaller than the longitudinal extension of the concentration element of the overlapping magnetic flux. The second longitudinal extension of the second overlapping magnetic flux concentration element and the longitudinal extension of the overlapping magnetic flux concentration element could be at least essentially 5 and, preferably, totally identical. The term "longitudinal extension" of an object includes the concept of the extension of the object along the direction of the longitudinal extension of the object. The term "extension" of an object includes the concept of the maximum distance between two points of a perpendicular projection of the object on a plane. The term "direction of the longitudinal extension" of an object includes the concept of a direction that is oriented parallel to the larger side of the smaller imaginary geometric parallelepiped that completely engages the object. In this way, the magnetic flux provided by the heating unit can be optimally concentrated.
     fifteen
    Likewise, it is proposed that, when the heating unit is perpendicularly observed on the main extension plane, a second longitudinal axis of the second overlapping magnetic flux concentration element encloses with the second main axis a second minimum angle of at least 5 °, preferably, at least 10 °, advantageously, at least 12 ° and, preferably, at least 15 °. When the heating unit is perpendicularly observed on the main extension plane, the second overlapping magnetic flux concentration element encloses with the second main axis a second minimum angle of a maximum of 40 °, preferably, a maximum of 35 °, so advantageous, 32 ° maximum and, preferably, 30 ° maximum. Thus, heating of the symmetrical and / or uniform surface is possible throughout the entire base of the cooking battery 25, since the appearance of hot spots along the main axes can be controlled in a controlled manner.

    The angle and the second angle could be, for example, approximately or exactly and, preferably, totally identical. Alternatively, the second angle could be less than 30 the angle. Preferably, the second angle is greater than the angle. Thus, it is possible to minimize hot spots along both main axes and / or achieve an optimized heat distribution, in particular, in a case where the extent of the heating unit along the second main axis is smaller than the extension of the heating unit along the first main axis. 35

    Furthermore, it is proposed that, when the heating unit is perpendicularly observed on the main extension plane, the overlapping magnetic flux concentration element has a distance of at least 5 mm, preferably, at least 25 mm, advantageously, of at least 15 mm and, preferably, at least 20 mm, with respect to the intersection point of the main axes. If the heating unit is perpendicularly observed on the main extension plane, the point of intersection of the main axes is at the center and / or center of gravity of the heating unit. When the heating unit is perpendicularly observed on the main extension plane, the overlapping magnetic flux concentration element has a maximum distance of 45 70 mm, preferably 50 mm maximum, advantageously, maximum 40 mm and , preferably, 35 mm maximum, with respect to the point of intersection of the main axes. The distance is oriented parallel to the longitudinal axis of the element of concentration of the overlapping magnetic flux and / or approximately or exactly perpendicular to at least one edge of the conformation of the element of concentration of the overlapping magnetic flux, upon observing perpendicularly the unit of heating on the main extension plane. Thus, the arrangement of the concentration element of the overlapping magnetic flux can be very flexible, in particular, in terms of the given conformation of the essentially polygonal outer heating element.
    Likewise, it is proposed that, when the heating unit is perpendicularly observed on the main extension plane, the second overlapping magnetic flux concentration element has a second distance of at least 2.5 mm, preferably, at least 5 mm, of advantageously, at least 10 mm and, preferably, at least 15 mm, with respect to the point of intersection of the main axes. When the heating unit is perpendicularly observed on the main extension plane, the second overlapping magnetic flux concentration element has a second distance of a maximum of 50 mm, preferably, a maximum of 40 mm, advantageously, of 30 mm as maximum and, preferably, 25 mm maximum, with respect to the point of intersection of the main axes. The distance and the second distance 10 could be, for example, at least essentially and, preferably, totally identical. Alternatively, the distance could be less than the second distance. Particularly advantageously, the distance is greater than the second distance. If the heating unit is perpendicularly observed on the main extension plane, the second distance is oriented parallel to the second longitudinal axis of the second element of concentration of the overlapping magnetic flux and / or approximately or exactly perpendicular to at least one edge. of a conformation of the second concentration element of the overlapping magnetic flux. Thus, the cooking battery to be heated can be heated particularly advantageously and / or evenly, so that particularly advantageous cooking results can be achieved. twenty

    The longitudinal axis of the overlapping magnetic flux concentration element and / or the second longitudinal axis of the second overlapping magnetic flux concentration element could extend, for example, through the point of intersection of the main axes. Preferably, when the heating unit is perpendicularly observed on the main extension plane, the longitudinal axis of the overlapping magnetic flux concentration element and / or the second longitudinal axis of the second overlapping magnetic flux concentration element is distanced from the point of intersection of the main axes, specifically, in a direction oriented parallel to at least one of the main axes. If the heating unit is perpendicularly observed on the main extension plane, the longitudinal axis of the concentration element of the overlapping magnetic flux is distanced from the intersection point of the main axes by at least 0.1 mm, preferably at 0, At least 2 mm, advantageously, at least 0.5 mm, particularly advantageously, at least 1 mm and, preferably, at least 2 mm, and at most 25 mm, preferably at 20 mm mm maximum, advantageously, 15 mm maximum, particularly advantageously, 12 mm maximum and, preferably, 10 mm maximum. If the heating unit is perpendicularly observed on the main extension plane, the second longitudinal axis of the second overlapping magnetic flux concentration element is distanced from the intersection point of the main axes by at least 0.1 mm, preferably, at 0 , At least 2 mm 40, advantageously, at least 0.5 mm, particularly advantageously, at least 1 mm and, preferably, at least 2 mm, and at most 25 mm, preferably, 20 mm maximum, advantageously, 15 mm maximum, particularly advantageous, 12 mm maximum and, preferably, 10 mm maximum. In this way, it is possible to make small corrections 45 by arranging the concentration element of the overlapping magnetic flux, so that the reduction of hot spots can be optimized in a controlled manner.

    If the heating unit is perpendicularly observed on the main extension plane, at least one of the heating elements could, for example, have a largely or completely symmetrical conformation, which may not have directions of the main extension manifest. Also by way of example, at least one of the heating elements could have an approximate or exactly square and / or approximate or exactly circular conformation, if the unit is observed perpendicularly
    of heating on the main extension plane. Preferably, at least one of the heating elements has a clear main extension direction, which is oriented approximately or exactly parallel to the first main axis. The term "direction of the main extension" of an object includes the concept of a direction that is oriented in parallel to the larger side of the imaginary geometric parallelepiped minor that completely wraps the object completely. The larger side of the imaginary geometric parallelepiped minor is larger than the two sides of the parallelepiped oriented perpendicularly to the larger side. The heating element, which has the direction of the manifest main extension, has a longitudinal extension that is greater than the extensions of the heating element oriented perpendicularly to the longitudinal extension. The expression "approximately or exactly in parallel" includes the concept of the orientation of an address relative to a reference direction in a plane, where the address present with respect to the reference direction is a deviation less than 8 °, advantageously, inferior at 5th and, particularly advantageously, below 2nd. In this way, great flexibility can be achieved relative to the configuration of the 15 heating elements. In particular, it is particularly advantageous that elongated cooking batteries are heated.

    When the heating unit is perpendicularly observed on the main extension plane, the overlapping magnetic flux concentration element and / or the second overlapping magnetic flux concentration element 20 could have an approximate or exactly rectangular conformation. Preferably, when the heating unit is perpendicularly observed on the main extension plane, the overlapping magnetic flux concentration element and / or the second overlapping magnetic flux concentration element has an approximately rectangular conformation, which narrows from the center and / or center of gravity of the concentration element of the overlapping magnetic flux in the direction of an area directed towards the point of intersection of the main axes. In this way, great freedom of configuration can be achieved. The magnetic flux concentration elements can be placed closer to the center of gravity and / or center of the heating unit without the magnetic flux concentration elements 30 arranged adjacent to each other overlapping and / or influencing each other. .

    The concentration unit of the magnetic flux could, for example, have at least a third concentration element of the magnetic flux, which could be associated with exactly one of the heating elements. Preferably, the magnetic flux concentration unit exclusively has overlapping magnetic flux concentration elements, so that reduced storage and / or uniform surface heating is possible. The cooking apparatus preferably has only overlapping magnetic flux concentration elements. 40

    The cooking appliance device described is not limited to the application or to the embodiment described above, in particular it may have a number of particular elements, components, and units that differ from the amount mentioned herein. , as long as the purpose of fulfilling the functionality described herein is pursued.

    Other advantages are taken from the following description of the drawing. Examples of embodiment of the invention are shown in the drawing. The drawing, description and claims contain numerous features in combination. The person skilled in the art 50 will consider the characteristics advantageously also separately, and will gather them in other reasonable combinations.

    They show:
    Fig. 1, a cooking appliance with a cooking appliance device, in schematic top view.

    Fig. 2, a heating unit and a magnetic flux concentration unit of the cooking appliance device of Figure 1, in schematic top view. 5

    Fig. 3, the magnetic flux concentration unit, in schematic top view.

    Fig. 4, the result of a simulation of the power losses during the heating of the base of a cooking battery heated by the heating unit, in a schematic representation.

    Fig. 5, a heating unit and a magnetic flux concentration unit of an alternative cooking device, in schematic top view.
     fifteen
    Fig. 6, the magnetic flux concentration unit of Figure 5, in schematic top view.

    Fig. 7, the result of a simulation of the power losses during the heating of the base of a cooking battery heated by the heating unit, in a schematic representation.

    Fig. 8, a heating unit and a magnetic flux concentration unit of an alternative cooking device, in schematic top view.
     25
    Fig. 9, the heating unit and the magnetic flux concentration unit of figure 8, in schematic top view greatly simplified.

    Fig. 10, the result of a simulation of the power losses during the heating of the base of a cooking battery heated by the heating unit, in a schematic representation.

    Fig. 11, a heating unit and a magnetic flux concentration unit of an alternative cooking device, in schematic top view.
     35
    Figure 1 shows a cooking appliance 46a, made as an induction cooking device, with a cooking device device 10a, made as an induction cooking device. The cooking apparatus 46a could be made, for example, as a grill appliance and / or as a steam cooking appliance and / or as a microwave appliance and / or as a cooking oven. In the present embodiment, the cooking apparatus 46a is made as a cooking hob, in particular, as an induction cooking hob. The cooking appliance device 10a is made as a cooking hob device, in particular, as an induction cooking hob device.

    The cooking device device 10a has an appliance plate 48a. In this exemplary embodiment 45, the appliance plate 48a is made as a cooking hob plate. In the assembled state, the appliance plate 48a forms a part of the outer housing of the cooking appliance 46a. In the installation position, the device plate 48a forms a part of the outer housing of the device directed towards the user. In the assembled state, the appliance plate 48a is provided to support at least one cooking battery (not shown).

    In addition, the cooking device device 10a has a user interface 50a for the introduction and / or selection of operating parameters (see Figure 1), for example, the
    heating power and / or the density of the heating power and / or the heating zone. Also, the user interface 50a is intended to give the user the value of an operating parameter. By way of example, the user interface 50a could give the user the value of the operating parameter optically and / or acoustically.
     5
    Likewise, the cooking device device 10a has a control unit 52a, which is intended to perform actions and / or modify settings depending on the operating parameters entered through the user interface 50a.

    The cooking device 10a has several heating units 12a, of which only one is shown (see Figure 2). The heating units 12a are carried out identically with each other, whereby only one of them is described below.

    The heating unit 12a has an internal heating element 14a and an essentially polygonal external heating element 16a (see Figure 2). The heating elements 14a, 16a have in each case a main extension plane. In the present exemplary embodiment, the main extension plane of the interior heating element 14a and the main extension plane of the external heating element 16a are oriented essentially parallel to each other. Next, only one of the main extension planes is described.

    The internal heating element 14a has a clear direction of the main extension 44a and a longitudinal extension. The longitudinal extension of the interior heating element 14a is oriented essentially parallel to the direction of the main extension 25 44a of the interior heating element 14a. In this exemplary embodiment, the internal heating element 14a has an oval and, in particular, ellipsoidal shape.

    The external heating element 16a has a clear main extension direction 44a and a longitudinal extension. The longitudinal extension of the external heating element 30a is essentially oriented parallel to the direction of the main extension 44a of the external heating element 16a. In this exemplary embodiment, the external heating element 16a has an essentially rectangular shape.

    The direction of the main extension 44a of the internal heating element 14a and the direction of the main extension 44a of the external heating element 16a are oriented parallel to each other. Therefore, only one of the addresses of the main extension 44a is described below. Each of the heating elements 14a, 16a has a clear longitudinal extension that is oriented essentially parallel to the direction of the main extension 44a. 40

    The cooking apparatus device 10a has a magnetic flux concentration unit 18a for each heating unit 12a (see Figures 2 and 3). The magnetic flux concentration unit 18a is associated with the heating unit 12a. In an operating state, the magnetic flux concentration unit 18a concentrates the magnetic flux 45 provided by the heating unit 12a. The magnetic flux concentration unit 18a is provided to concentrate the magnetic flux provided by the heating unit 12a.

    In this exemplary embodiment, the magnetic flux concentration unit 18a has 50 four overlapping magnetic flux concentration elements 20a. Only one of each of the objects present several times is accompanied by a reference symbol in the figures. Alternatively, the magnetic flux concentration unit 18a could have a smaller amount of overlapping magnetic flux concentration elements.
    20a, for example, at least two, or at least three overlapping magnetic flux concentration elements 20a. Alternatively, the magnetic flux concentration unit 18a could have a greater amount of overlapping magnetic flux concentration elements 20a, for example, at least six, or at least eight overlapping magnetic flux concentration elements 20a. The overlapping magnetic flux 5 concentration elements 20a are made essentially identically, so that only one of them is described below.

    The overlapping magnetic flux concentration element 20a is disposed overlapping the heating elements 14a, 16a when the heating unit 12a is observed perpendicularly on the main extension plane. The overlapping magnetic flux concentration element 20a is associated with the internal heating element 14a and the external heating element 16a.

    Together with the concentration element of the overlapping magnetic flux 20a, the concentration unit of the magnetic flux 18a presents in this exemplary embodiment four second elements of concentration of the overlapping magnetic flux 32a. Alternatively, the magnetic flux concentration unit 18a could have a smaller amount of second overlapping magnetic flux concentration elements 32a, for example, at least two, or at least three second overlapping magnetic flux concentration elements 32a. 20 Alternatively, the magnetic flux concentration unit 18a could have a greater amount of second overlapping magnetic flux concentration elements 32a, for example, at least six, or at least eight second overlapping magnetic flux concentration elements 32a . The second overlapping magnetic flux concentration elements 32a are made essentially identically, whereby only one of them is described below.

    When the heating unit 12a is perpendicularly observed on the main extension plane, the minimum distance areas 22a between the heating elements 14a, 16a do not have overlapping magnetic flux concentration elements 20a, 32a. In this exemplary embodiment, the areas 22a of minimum distance between the heating elements 14a, 16a do not have any element of concentration of the magnetic flux 20a, 32a if the heating unit 12a is perpendicularly observed on the main extension plane.
     35
    When the heating unit 12a is perpendicularly observed on the main extension plane, the minimum distance areas 22a between the heating elements 14a, 16a are arranged around a first main axis 24a of the heating unit 12a and about a second axis main 26a of the heating unit 12a.
     40
    If the heating unit 12a is perpendicularly observed on the main extension plane, the first main axis 24a of the heating unit 12a is oriented essentially perpendicularly to two edges of the essentially polygonal conformation of the external heating element 16a. In this exemplary embodiment, the first main shaft 24a is oriented essentially parallel to the direction of the main extension 45 44a if the heating unit 12a is perpendicularly observed on the main extension plane.

    If the heating unit 12a is perpendicularly observed on the main extension plane, the second main axis 26a of the heating unit 12a is oriented essentially perpendicularly to two edges of the essentially polygonal conformation of the external heating element 16a. The second main shaft 26a of the heating unit 12a is oriented essentially perpendicular to the first axis
    main 24a if the heating unit 12a is observed perpendicularly on the main extension plane.

    When the heating unit 12a is perpendicularly observed on the main extension plane, the areas 22a around the first main axis 24a of the heating unit 5 12a and around the second main axis 26a of the heating unit 12a do not have concentration elements of the overlapping magnetic flux 20a, 32a. In this exemplary embodiment, the areas 22a around the first main axis 24a of the heating unit 12a and around the second main axis 26a of the heating unit 12a have no magnetic flux concentration element 20a, 32a if observed 10 perpendicularly the heating unit 12a on the main extension plane.

    When the heating unit 12a is perpendicularly observed on the main extension plane, the first main axis 24a and the second main axis 26a have an intersection point 40a that coincides with the center and / or center of gravity of the heating unit 12a . When the heating unit 12a is observed perpendicularly on the main extension plane, the second concentration element of the overlapping magnetic flux 32a is arranged together with the concentration element of the overlapping magnetic flux 20a within a quadrant laid by the main axes 24a, 26a .
     twenty
    The first main axis 24a and the second main axis 26a divide the heating unit 12a into four quadrants when the heating unit 12a is perpendicularly observed on the main extension plane. In this embodiment, the quadrants are made analogously to each other, so that only one of them is described below. 25

    The overlapping magnetic flux concentration element 20a has a longitudinal axis 28a. In this exemplary embodiment, the longitudinal axis 28a of the concentration element of the overlapping magnetic flux 20a encloses a minimum angle 30a of approximately 22.5 ° with the first main axis 24a, if the heating unit 12a 30 is perpendicularly observed on the plane of main extension.

    The second overlapping magnetic flux concentration element 32a has a second longitudinal axis 34a. In this exemplary embodiment, the second longitudinal axis 34a of the second overlapping magnetic flux concentration element 32a encloses a second minimum angle 35a of approximately 25 ° with the second main axis 26a, if the heating unit 12a is perpendicularly observed on the main extension plane. The second angle 36a is greater than the angle 30a.

    When the heating unit 12a is perpendicularly observed on the main extension plane 40, the concentration element of the overlapping magnetic flux 20a has in this exemplary embodiment a distance 38a of approximately 29.1 mm with respect to the intersection point 40a of the axes main 24a, 26a, and the second element of concentration of the overlapping magnetic flux 32a presents in this exemplary embodiment a second distance 42a of approximately 17.6 mm with respect to the intersection point 40a of the main 45 axes 24a, 26a. The distance 38a is greater than the second distance 42a.

    When the heating unit 12a is perpendicularly observed on the main extension plane, the longitudinal axis 28a of the concentration element of the overlapping magnetic flux 20a is distanced from the intersection point 40a of the main axes 24a, 26a, in this 50 exemplary embodiment, in a 54a path of approximately 1.5 mm.

    When the heating unit 12a is perpendicularly observed on the main extension plane, the second longitudinal axis 34a of the second flow concentration element
    Overlapping magnetic 32a is distanced from the intersection point 40a of the main axes 24a, 26a, in this exemplary embodiment, in a second path 56a of approximately 3 mm. The path 54a is smaller than the second path 56a. Alternatively, the path 54a could be greater than the second path 56a.
     5
    In the present embodiment, the longitudinal extension of the concentration element of the overlapping magnetic flux 20a is smaller than the second longitudinal extension of the second concentration element of the overlapping magnetic flux 32a.

    In this exemplary embodiment, the overlapping magnetic flux concentration unit 18a 10 has only overlapping magnetic flux concentration elements 20a, 32a. When the heating unit 12a is perpendicularly observed on the main extension plane, the concentration element of the overlapping magnetic flux 20a has in this embodiment an rectangular shape. When the heating unit 12a is perpendicularly observed on the main extension plane, the second concentration element of the overlapping magnetic flux 32a has in this embodiment an rectangular shape.

    Figure 4 shows in a very simplified manner the result of a simulation of the power losses during the heating of the base of a cooking battery 58a heated by the heating unit 12a. The denser the scratching, the greater the power losses in the area in question. It can be seen that the power losses are essentially uniformly distributed and that there are no hot spots where the power losses are particularly high.
     25
    In Figures 5 to 11, other embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the examples of embodiment, where, in relation to components, characteristics and functions that remain the same, reference can be made to the description of the example of embodiment of Figures 1 to 4. For differentiation of the embodiments, the letter "a" of the reference symbols of the embodiment of Figures 1 to 4 has been replaced by the letters "b" to "d" in the reference symbols of the embodiments of figures 5 to 11. In relation to components indicated in the same way, in particular, in terms of components with the same reference symbols, it is also possible to refer basically to the drawings and / or to the description of the embodiment of the figures 1 to 4. 35

    Figure 5 shows a heating unit 12b and a magnetic flux concentration unit 18b of an alternative cooking device 10b. The magnetic flux concentration unit 18b has four overlapping magnetic flux concentration elements 20b and four second magnetic flux concentration elements 40 overlaps 32b, of which only one is described below.

    In this exemplary embodiment, the overlapping magnetic flux concentration element 20b has an essentially rectangular shape when the heating unit 12b is perpendicularly observed on the main extension plane of a heating element 14b, 16b of the heating unit 12b. In this exemplary embodiment, the second overlapping magnetic flux concentration element 32b has an essentially rectangular shape when the heating unit 12b is observed perpendicularly on the main extension plane. The rectangular conformation narrows in the direction of the intersection point 40b of the main axes 24b, 26b of the 50 heating unit 12b.

    If the heating unit 12b is observed perpendicularly on the main extension plane, the shape of the overlapping magnetic flux concentration elements is
    essentially rectangular and an essentially trapecial conformation, where the essentially trapecial conformation is disposed next to the end of the corresponding magnetic flux concentration element 20b, 32b directed towards the intersection point 40b of the main axes 24b, 26b of the heating unit 12b.
     5
    Figure 7 shows in a very simplified manner the result of a simulation of the power losses during the heating of the base of a cooking battery 58b heated by the heating unit 12b. The denser the scratching, the greater the power losses in the area in question. It can be seen that the power losses are essentially uniformly distributed and that there are no hot spots where the 10 power losses are particularly high.

    Figures 8 and 9 show in each case a heating unit 12c and a magnetic flux concentration unit 18c of an alternative cooking device 10c. The magnetic flux concentration unit 18c has four overlapping magnetic flux concentration elements 20c and four second overlapping magnetic flux concentration elements 32c, of which only one is described below.

    In this exemplary embodiment, the magnetic flux concentration unit 18c has four four third elements of the magnetic flux concentration 60c. When the heating unit 12c is perpendicularly observed on the main extension plane of a heating element 14c, 16c of the heating unit 12c, each of the third concentration elements of the magnetic flux 60c is arranged in a quadrant laid by the axes main 24c, 26c of the heating unit 12c. Next, only one of the third elements of concentration of the magnetic flux 60c is described.

    When the heating unit 12c is perpendicularly observed on the main extension plane, the third concentration element of the magnetic flux 60c is arranged in a corner area 30c of the essentially polygonal conformation of the external heating element 16c. In this exemplary embodiment, the third magnetic flux concentration element 60c is associated with the external heating element 16c. When the heating unit 12c is observed perpendicularly on the main extension plane, the third concentration element of the magnetic flux 60c is arranged in a surface area 35 laid by the external heating element 16c and distanced from a surface area laid by the interior heating element 14c.

    Figure 10 shows in a very simplified manner the result of a simulation of the power losses during the heating of the base of a cooking battery 58c 40 heated by the heating unit 12c. The denser the scratching, the greater the power losses in the area in question. It can be seen that the power losses are essentially uniformly distributed and that there are no hot spots where the power losses are particularly high.
     Four. Five
    Figure 11 shows a heating unit 12d and a magnetic flux concentration unit 18d of an alternative cooking device 10d. The heating unit 12d has an internal heating element 14d and an external heating element 16d approximately or exactly polygonal. In this exemplary embodiment, the internal heating element 14d has an essentially circular shape 50.

    In this exemplary embodiment, the internal heating element 14d has an essentially circular shape when the unit of perpendicularly is observed
    heating 12d on the main extension plane of one of the heating elements 14d, 16d. In this exemplary embodiment, the external heating element 16d has an essentially square shape when the heating unit 12d is perpendicularly observed on the main extension plane.
     5




     10




     fifteen




     twenty




     25




     30




     35




     40




     Four. Five




     fifty




    REFERENCE SYMBOLS

    10 Cooking device

    12 Heating unit 5

    14 Interior heating element

    16 External heating element
     10
    18 Magnetic flux concentration unit

    20 Overlapping magnetic flux concentration element

    22 Area 15

    24 First main axis

    26 Second main axis
     twenty
    28 Longitudinal axis

    30 Angle

    32 Second element of overlapping magnetic flux concentration 25

    34 Second longitudinal axis

    36 Second angle
     30
    38 Distance

    40 intersection point

    42 Second distance 35

    44 Address of main extension

    46 Cooking appliance
     40
    48 Appliance plate

    50 User Interface

    52 Control Unit 45

    54 Path

    56 Second trip
     fifty
    58 Cooking battery base

    60 Third element of magnetic flux concentration
    62 Corner Area
    55
    权利要求:
    Claims (13)
    [1]

    1. Cooking appliance device, in particular, cooking hob device, with at least one heating unit (12a-d) having at least one internal heating element (14a-d) and at least one heating element external heating (16a-d) approximately or exactly polygonal, where at least one of the heating elements (14a-d, 16a-d) has a main extension plane, and with at least one unit of magnetic flux concentration (18a -d) which is intended to concentrate the magnetic flux provided by the heating unit (12a-d), and which has at least one element 10 for concentration of the overlapping magnetic flux (20a-d), which is arranged overlapped of the heating elements (14a-d, 16a-d) when the heating unit (12a-d) is observed perpendicularly on the main extension plane, characterized in that, when the heating unit (12a-d) is perpendicularly observed on the flat Of main extension, the areas (22a-d) of a minimum distance between the heating elements (14a-15d, 16a-d) do not have overlapping magnetic flux concentration elements (20a-d, 32a-d).

    [2]
    2. Cooking device according to the preamble of claim 1 and especially according to claim 1, characterized in that, when the heating unit (12a-d) is perpendicularly observed on the main extension plane, the areas (22a-d ) around at least a first main axis (24a-d) of the heating unit (12a-d), which is oriented approximately or exactly perpendicular to at least one edge of the approximate or exactly polygonal conformation of the element of external heating (16a-d), and about at least a second main axis (26a-d) of the heating unit (12a-d), which is oriented approximately or exactly perpendicular to the first main axis (24a -d), do not have elements of concentration of the magnetic flux overlapping (20a-d, 32a-d).

    [3]
    3. Cooking device according to claim 2, characterized in that, when the heating unit (12a-d) is perpendicularly observed on the main extension plane, the longitudinal axis (28a-d) of the magnetic flux concentration element overlapping (20a-d) encloses with the first main axis (24a-d) a minimum angle (30a-d) of at least 5º.
     35
    [4]
    4. Cooking device according to claims 2 or 3, characterized in that the magnetic flux concentration unit (18a-d) has at least a second overlapping magnetic flux concentration element (32a-d), which is arranged together with the concentration element of the overlapping magnetic flux (20a-d) within a quadrant laid by the main axes (24a-d, 26a-d), when the heating unit (12a-d) is observed perpendicularly on the plane of main extension.

    [5]
    5. Cooking device according to claim 4, characterized in that, when the heating unit (12a-d) is perpendicularly observed on the main extension plane, a second longitudinal axis (34a-d) of the second flow concentration element Overlapping magnetic (32a-d) encloses with the second main axis (26a-d) a second angle (36a-d) minimum of at least 5º.

    [6]
    6. Cooking device according to claim 5, characterized in that the second angle (36a-d) is greater than the angle (30a-d). fifty

    [7]
    7. Cooking device according to one of claims 2 to 6, characterized in that, when the heating unit (12a-d) is perpendicularly observed on the main extension plane, the overlapping magnetic flux concentration element (20a-d )
    it has a distance (38a-d) of at least 5 mm with respect to the point of intersection (40a-d) of the main axes (24a-d, 26a-d).

    [8]
    A cooking device according to one of claims 4 to 7, characterized in that, when the heating unit (12a-d) is perpendicularly observed on the main extension plane, the second overlapping magnetic flux concentration element (32a -d) has a second distance (42a-d) of at least 2.5 mm with respect to the point of intersection (40a-d) of the main axes (24a-d, 26a-d).

    [9]
    9. Cooking device according to one of claims 2 to 8, characterized in that, when the heating unit (12a-d) is perpendicularly observed on the main extension plane, the longitudinal axis (28a-d) of the heating element Overlapping magnetic flux concentration (20a-d) is distanced from the point of intersection (40a-d) of the main axes (24a-d, 26a-d).
     fifteen
    [10]
    10. A cooking appliance according to one of claims 2 to 9, characterized in that at least one of the heating elements (14a-d, 16a-d) has an address of the main extension (44a-d), which It is oriented approximately or exactly parallel to the first main axis (24a-d).
     twenty
    [11]
    A cooking device according to one of claims 2 to 10, characterized in that, when the heating unit (12b) is perpendicularly observed on the main extension plane, the overlapping magnetic flux concentration element (20b) has a conformation rectangular with a trapecial end.
     25
    [12]
    12. Cooking device according to one of the preceding claims, characterized in that the magnetic flux concentration unit (18a-b; 18d) exclusively has overlapping magnetic flux concentration elements (20a, 32a; 20b, 32b; 20d , 32d) above both heating elements (14a, 16a; 14b, 16b; 14d, 16d). 30

    [13]
    13. Cooking apparatus, in particular, cooking hob, with at least one cooking appliance device (10a-d) according to one of the claims set forth above.
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    同族专利:
    公开号 | 公开日
    ES2684168B1|2019-07-29|
    EP3383138A1|2018-10-03|
    EP3383138B1|2020-09-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20090084777A1|2006-10-02|2009-04-02|Oh Doo Yong|Cooking device having an induction heating element|
    ES2326506A1|2007-05-09|2009-10-13|Bsh Electrodomesticos España, S.A|Induction hob and inference element for an induction hob|
    EP2945463A1|2014-05-16|2015-11-18|E.G.O. ELEKTRO-GERÄTEBAU GmbH|Induction cooking hob|
    JP2016126840A|2014-12-26|2016-07-11|パナソニックＩｐマネジメント株式会社|Heating cooker|
    JP5142856B2|2008-07-02|2013-02-13|三菱電機株式会社|Induction heating cooker|
    JP5117992B2|2008-10-23|2013-01-16|株式会社ダイヘン|Heating coil unit of electromagnetic induction heating cooker|
    JP2010257891A|2009-04-28|2010-11-11|Mitsubishi Electric Corp|Induction heating cooker|
    法律状态:
    2018-10-01| BA2A| Patent application published|Ref document number: 2684168 Country of ref document: ES Kind code of ref document: A1 Effective date: 20181001 |
    2019-07-29| FG2A| Definitive protection|Ref document number: 2684168 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190729 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201730495A|ES2684168B1|2017-03-30|2017-03-30|Cooking appliance|ES201730495A| ES2684168B1|2017-03-30|2017-03-30|Cooking appliance|
    EP18161979.2A| EP3383138B1|2017-03-30|2018-03-15|Cooking device|
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