• 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:
    Induction cooking field device. The present invention relates to an induction cooking field device (10a-d) with at least two induction heating lines (12a-d) and with at least one printed circuit board (14a-d), together with which and/or in which the induction heating lines (12a-d) are arranged. In order to provide a generic induction cooking field device with better properties in terms of efficiency, it is proposed that the printed circuit board (14a-d) be made as a flexible printed circuit board. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2684180A1
    申请号:ES201730510
    申请日:2017-03-30
    公开日:2018-10-01
    发明作者:Jesus Acero Acero；Claudio Carretero Chamarro；Pablo Jesus Hernandez Blasco；Sergio Llorente Gil；Ignacio Lope Moratilla；Maria Elena Moya Albertin；Javier SERRANO TRULLEN
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

    The present invention relates to an induction cooking device according to the preamble of claim 1 and a method for manufacturing an induction cooking device according to the preamble of claim 12.
    Through the German patent application DE 10 2013 214433 A1, an induction cooking device with several induction heating lines is already known which are arranged alongside and, partially, on a substrate. The density of the induction heating lines is very low compared to the multiple filaments known in the state of the art, which causes high direct current losses. Another problem is that, as a consequence of the special application in the case of an induction cooking field, a magnetic field strikes a large vertical component on the printed circuit board and, with it, on the induction heating lines arranged next to it. Since the losses of alternating current are greater as a result of an alternating magnetic field in a rectangular configuration, if the field strikes an extensive side of the rectangular configuration, for the application of such a printed circuit board with heating lines by induction arranged next to it is a disadvantageous situation.
    The invention solves the technical problem of providing a generic induction cooking device with better properties in relation to its efficiency. According to the invention, this technical problem is solved by the features of claims 1 and 12, while advantageous embodiments and improvements of the invention can be extracted from the secondary claims.
    The present invention refers to an induction cooking field device with at least two, preferably, at least three, advantageously, at least four, particularly advantageously, at least eight, preferably, at least twelve and, particularly preferably, multiple induction heating lines, and with at least one printed circuit board, next to which and / or on which the induction heating lines are arranged, where the printed circuit board It is made as a flexible printed circuit board. By this embodiment according to the invention, high efficiency can be achieved based on reduced direct current losses and / or reduced alternating current losses. It makes it possible for costs to be low thanks to the high density of induction heating lines. Likewise, a high freedom of configuration is possible in relation to the layout and / or configuration of the printed circuit board. In comparison with the known solutions from the prior art, it is possible to increase the efficiency in terms of costs and / or performance at high frequencies.
    The term "induction cooking field device" includes the concept of at least one part, namely a construction subgroup, of an induction cooking field. The term "induction heating line" includes the concept of an element that in at least one operating state conducts a high-frequency electric current and that, by means of the electric current, supplies at least one alternating electromagnetic field to heat a battery of cooking on top. An induction heating line is made as a filament and, advantageously, as a multiple filament, and is part of at least one induction heating element. The induction cooking field device has at least one induction heating element having the induction heating lines. Induction heating lines, specifically all induction heating lines, are part of a single induction heating element.
    The term "printed circuit board" includes the concept of a unit that in at least the assembled state supports at least one electronic and / or electrical component. The printed circuit board has at least one substrate that forms a base plate of the printed circuit board and which has an approximate or exactly plate-shaped conformation. The printed circuit board may comprise at least conductive tracks, which may be installed next to the substrate of the printed circuit board and / or incorporated into the substrate at least partially, and which may form the induction heating lines. The term "substrate" includes the concept of a support element that is intended to form a base layer for an optical printed circuit board. The substrate could be composed largely or entirely of an electrically insulating material. In particular, the substrate can be made largely or completely of a hard paper and / or of a polymer plastic and / or of a polymer plastic film and / or of at least one polyimide plastic and / or of a fiber reinforced plastic and / or a combination of different materials. The substrate can be made of one layer or several layers. The substrate could have at least two, advantageously, at least four, particularly advantageously, at least eight and, preferably, more layers, which could be, for example, laminated together. The term "in large or complete" includes the concept of at least 70%, preferably, at least 80%, advantageously, at least 90% and, preferably, 95% as minimum.
    The induction heating lines could be fixed and / or installed next to the printed circuit board, in particular, next to the printed circuit board substrate. By way of example, the induction heating lines could be installed next to the printed circuit board, in particular, next to the substrate of the printed circuit board, by means of a material joint, for example, by a bonding joint and / or by a coating procedure. The induction heating lines could be installed in the form of a coating next to the printed circuit board, in particular, next to the substrate of the printed circuit board and, in particular, on the surface of the printed circuit board, in particular , of the printed circuit board substrate. Alternatively or additionally, the printed circuit board could have at least one coating over the entire surface and, advantageously, electrically conductive, from which induction heating lines could be introduced into the printed circuit board by removing much of the coating, for example, by an acid treatment process and / or by a laser process.
    The term "flexible" printed circuit board includes the concept of a printed circuit board whose shape is modifiable by applying a force of a maximum of 100 N, preferably, a maximum of 75 N, advantageously, a maximum of 50 N, of particularly advantageous, of 25 N maximum, preferably, 10 N maximum and, particularly preferably, 5 N maximum. The flexible printed circuit board is foldable and / or foldable and / or extensible without being destroyed or / or without breakage.
    In at least the assembled state, the flexible printed circuit board is incorporated and / or fixed in such a way that it is immovable. In at least the disassembled state, which could be placed in time before and / or after the assembled state, the flexible printed circuit board is flexible.
    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.
    Likewise, it is proposed that the printed circuit board has a maximum thickness of 300 µm, preferably 270 maximum, advantageously, 250 µm maximum, particularly advantageously, 230 µm maximum, preferably, 200 µm maximum and, particularly preferably, 170 µm maximum. Likewise, the printed circuit board has a thickness of at least 1 µm, preferably at least 10 µm, advantageously, at least 20 µm, particularly advantageously, at least 50 µm and, in a way preferred, at least 70 µm. The printed circuit board is made as an extra-thin printed circuit board. The term "thickness" of an object includes the concept of the extension of the shortest side of the smallest imaginary geometric parallelepiped that completely engages the object in the unfolded state of the object. The thickness of the printed circuit board is considerably smaller than at least one extension of the printed circuit board oriented perpendicular to the thickness and, advantageously, than two extensions of the printed circuit board oriented perpendicular to the thickness. In this way, a compact embodiment can be achieved.
    In addition, it is proposed that the induction heating lines be electrically connected in parallel with each other and that they are part of a single induction heating element, so that a particularly advantageous heating of the cooking battery resting on it becomes possible.
    The printed circuit board could have, for example, exactly a single layer through which induction heating lines could extend. However, preferably, the printed circuit board has at least two layers through which the induction heating lines extend. The induction heating lines could be arranged on all layers of the printed circuit board, where, for example, each of the induction heating lines could have at least a partial area on each layer of the printed circuit board . Alternatively, at least a first induction heating line of the induction heating lines could extend through a first layer of the printed circuit board and at least a second induction heating line of the induction heating lines , which could be different from the first induction heating line, could extend through a second layer of the printed circuit board, which could be different from the first layer. By way of example, the printed circuit board could have a larger number of layers such as, for example, at least three, preferably at least four, advantageously, at least six and, preferably, more layers, through which induction heating lines could extend. The printed circuit board has at least two openings that join together at least two layers of the printed circuit board. The induction heating lines change through the openings of one layer of the printed circuit board to the next layer of the printed circuit board. The amount of openings is at least the same as the amount of induction heating lines. Advantageously, the amount of openings is greater than the amount of induction heating lines. Thus, a particularly high efficiency can be achieved.
    In addition, it is proposed that, at least in the unwound state, the printed circuit board is flat and that, at least in the assembled state, it is wound in a coil. Alternatively, in the unwound state, the printed circuit board could have a conformation that differs from a flat conformation as a result of its multiple folds. At least in the assembled state, in which the printed circuit board is wound in a coil, the printed circuit board could, for example, be wound in a propeller and have an approximate or exactly helical conformation. Alternatively or additionally, at least in the assembled state, in which the printed circuit board is wound in a coil, the printed circuit board could be wound in a spiral and have an approximate or exactly spiral conformation. The term "flat" object includes the concept of a smooth object, which has at least one extension, in particular, a longitudinal extension and / or a transverse extension, which is considerably greater than the thickness of the object. By way of example, the flat printed circuit board could have an approximate or exactly plate-shaped conformation in the unwound state. Alternatively or additionally, the flat printed circuit board could have an approximate or exactly strip-shaped conformation in the unwound state. The term "longitudinal extension" of an object includes the concept of the extension of the largest side of the smallest imaginary geometric parallelepiped that completely engages the object in the unfolded state. The term "transverse extension" of an object includes the concept of an extension that is oriented perpendicular to the longitudinal extent of the object and with respect to the thickness of the object. The term "unwind state" includes the concept of a state in which the printed circuit board is in a plane after the coil has been unwound. In the unwound state, the printed circuit board could be, for example, folded or unfolded. The induction cooking device has the coil. The coil has induction heating lines. The term "coil" includes the concept of an inductive construction element with at least one specific inductance. The coil has at least five, preferably, at least ten, advantageously, at least fifteen and, preferably, at least twenty turns. As an example, the turns of at least one coil section could be arranged in several planes. However, the turns of at least one coil section are preferably arranged in a plane. In this way, a compact embodiment and / or an advantageous heating of the supported cooking battery can be achieved. Thanks to the arrangement of the induction heating lines next to and / or on the printed circuit board, high reproducibility can be achieved during manufacturing compared to the usual embodiments, in which the induction heating lines are wound in a coil without being arranged next to and / or on a printed circuit board, so that a safe and / or satisfactory coupling between the coil and the cooking battery to be heated is made possible at high frequencies.
    The printed circuit board could, for example, have no folded edges or / or folds. However, preferably, the printed circuit board has at least one folded edge, along which the printed circuit board is folded at least in the assembled state. The printed circuit board folded by the folded edge in at least the assembled state has a fold. The amount of folds and the amount of folded edges is approximately or exactly and, advantageously, totally identical. The printed circuit board has at least a first section and at least a second section, which are separated from each other by the folded edge and adjoin each other advantageously in the folded edge. In at least the folded state, the main extension plane of the first section and the main extension plane of the second section are oriented approximately or exactly parallel to each other and are arranged side by side in a direction oriented parallel to the printed circuit board thickness. The term "main extension plane" of an object, in the unfolded state of the object, includes the concept of a plane that is parallel to the larger lateral surface of the imaginary parallelepiped minor that completely wraps around the object, and which runs through the central point of the parallelepiped. Starting from at least the unfolded state, in at least the folded state, the first section is rotated around the approximated folded edge or exactly 180 ° with respect to the second section. 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. The term "folded state" of the printed circuit board includes the concept of a state in which the printed circuit board is folded around at least one folded edge and has at least one fold. The term "unfolded state" of the printed circuit board includes the concept of a state in which the printed circuit board has no folds, in which the printed circuit board has an approximate or exactly plate-shaped conformation, and in which the thickness of the printed circuit board is approximate or exactly and, advantageously, totally identical at any point. In this way, a high compaction density of the induction heating lines and / or a compact embodiment can be achieved.
    It is also proposed that the folded edge does not have induction heating lines. At least in the unfolded state of the printed circuit board and when the printed circuit board is perpendicularly observed on its main extension plane, the folded edge extends largely or completely between two induction heating lines arranged so adjacent to each other. At least in the unfolded state of the printed circuit board and when the printed circuit board is perpendicularly observed on its main extension plane, the folded edge is oriented approximately or exactly parallel to at least one and, advantageously, to the two induction heating lines arranged adjacent to each other. In this way, the printed circuit board can be folded smoothly and / or properly and / or without impairing the operation of the induction heating lines.
    The printed circuit board could have, for example, exactly one folded edge and, in at least the folded state, exactly one fold. Preferably, the printed circuit board has at least one other folded edge, along which the printed circuit board is folded at least in the assembled state, and which extends approximately
    or exactly parallel to the folded edge at least in the unfolded state. The printed circuit board has at least two, preferably, at least three, advantageously, at least four, particularly advantageously, at least six, preferably, at least ten and, particularly preferably, more of other folded edges, along which the printed circuit board is folded at least in the assembled state and which extend approximately or exactly parallel to the folded edge and with each other. In this way, it becomes possible for the printed circuit board to be folded multiple times, so that a more compact embodiment and / or a higher compaction density is possible compared to only a folded edge.
    In addition, it is proposed that, at least when its cross-section is observed, the printed circuit board has at least one section, which has a longitudinal extension that in the installation position is arranged approximately or exactly vertically. The section has the longitudinal extension when the cross-section of the printed circuit board is observed and at least in the winding state of the printed circuit board and / or at least in the assembled state of the printed circuit board. In the installation position, the longitudinal extension of the section is oriented approximately or exactly perpendicular to the main extension plane of a cooking field plate. The induction cooking field device has at least one cooking field plate, which is intended to support at least one cooking battery thereon and forms at least a part of the outer housing of the cooking field. The section is arranged between a folded edge and another folded edge and / or between a folded edge and the edge of the printed circuit board. When the cross-section of the printed circuit board is observed and at least in the winding state of the printed circuit board and / or at least in the assembled state of the printed circuit board, the section has an approximate or exactly rectangular conformation, whereby a particularly high compaction density and / or a particularly compact embodiment can be achieved. At least when its cross-section is observed, the printed circuit board advantageously has at least two, preferably at least four, advantageously, at least eight and, preferably, more sections, each of which has a longitudinal extension that is arranged approximately or exactly vertically in the installation position. Two sections of the printed circuit board disposed adjacent to each other are separated from each other by at least one folded edge and / or at least one fold, and adjoin each other in the folded edge and / or in the fold. The expression "when observing the cross section" of the printed circuit board includes the concept related to observing in an observation direction that is oriented parallel to the direction of the longitudinal extension of the printed circuit board in at least the unwound state. of the printed circuit board. The term "direction of the longitudinal extension" of an object, in the unfolded state of the object, includes the concept of a direction that is oriented parallel to the larger side of the smaller imaginary geometric parallelepiped that completely wraps around the object. Particularly advantageously, the amount of induction heating lines is a multiple of the number of sections of the printed circuit board and / or the number of layers of the printed circuit board, in order to make an embodiment possible. symmetric and, with it, a simple manufacture. The amount of folds and / or folded edges is smaller, in particular, it is smaller in an amount of one, than the number of sections. In this way, a high compaction density and / or simple fabrication of the turns of an induction heating element can be achieved. Thanks to the orientation and / or arrangement of the essentially perpendicular section, reduced alternating current losses and / or a high density of induction heating lines can be achieved, so that great performance can be achieved.
    Likewise, it is proposed that, at least in the unwound state, at least one induction heating line of the induction heating lines is displaced at least in sections perpendicular to the direction of the longitudinal extension of the printed circuit board. The induction heating line has at least a first heating line section and at least a second heating line section, which is arranged perpendicularly to the direction of the longitudinal extension of the printed circuit board with respect to the first section of heating line, at least in the unwound state. In this way, high efficiency is made possible, and the reciprocal influence between adjacent induction heating lines can be kept reduced.
    It is possible to increase the efficiency to a greater extent by means of a process for the manufacture of an induction cooking field device, with at least two induction heating lines and with at least one printed circuit board, where the induction heating lines they are arranged alongside and / or on the printed circuit board, where the printed circuit board is made as a flexible printed circuit board and is folded along at least one folded edge of the printed circuit board. As an example, the printed circuit board could have at least one coating, which could be arranged next to the printed circuit board at least in large part over the entire surface extension thereof and could be electrically conductive. The coating could be composed largely or entirely of copper and / or aluminum and / or gold and / or silver. The induction heating lines could be arranged next to the printed circuit board by ablating at least one part and, preferably, at least a large part of the coating. Alternatively or additionally, the induction heating lines could be printed and / or applied by evaporation and / or applied on the printed circuit board. Also alternatively
    or additionally, the induction heating lines could be incorporated into the printed circuit board, for example, by an acid treatment process and / or by a laser process.
    The induction cooking field device described is not limited to the application or to the embodiment described above, in particular being able to present a number of elements, components, and particular units that differs from the amount mentioned in the present document, as long as the purpose of fulfilling the functionality described here 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 will consider the characteristics advantageously also separately, and will gather them in other reasonable combinations.
    They show:
    Fig. 1 an induction cooking field with an induction cooking device, in schematic top view,
    Fig. 2 a printed circuit board and ten induction heating lines of the induction cooking field device, in a schematic partial section representation, where one of the induction heating lines is highlighted by a scratch, so that its position change in the direction of the longitudinal extension of the printed circuit board can be observed,
    Fig. 3 a section of the printed circuit board and induction heating lines, in schematic top view on a first layer of the printed circuit board, where the printed circuit board is shown to be transparent,
    Fig. 4 a section of the printed circuit board and induction heating lines, in schematic top view on a second layer of the printed circuit board, where the printed circuit board is shown to be transparent,
    Fig. 5 an overlay of figures 3 and 4, where the printed circuit board is shown to be transparent,
    Fig. 6 a section of a printed circuit board wound in a coil and five induction heating lines of an alternative induction cooking field device in a schematic representation, where the representation of the change of position of the lines is omitted of induction heating for simplicity,
    Fig. 7 a section of the printed circuit board wound in a coil and the induction heating lines, in a schematic section representation,
    Fig. 8 a section of a printed circuit board wound in a coil and five induction heating lines of an alternative induction cooking field device in a schematic representation, where the
    representation of the change of position of the induction heating lines for simplicity, Fig. 9 an enlarged section of Figure 8, in a schematic partial section representation, Fig. 10 a section of the printed circuit board in the state unrolled and unfolded, in schematic representation, Fig. 11 a section of the printed circuit board in the first step of the procedure, in schematic representation, Fig. 12 a section of the printed circuit board in the next step of the procedure, in schematic representation,
    Fig. 13 a section of a printed circuit board wound in a coil and five induction heating lines of an alternative induction cooking field device in a schematic representation, where the representation of the change of position of the lines is omitted of induction heating for simplicity, and
    Fig. 14 an enlarged section of Fig. 13, in a schematic partial section representation.
    Figure 1 shows an induction cooking field 30a with an induction cooking device 10a. The induction cooking field device 10a has a cooking field plate 34a which, in the assembled state, forms a part of an outer housing of the induction cooking field 30a. In the installation position, the cooking field plate 34a forms a part of the outer housing of the cooking field directed towards the user. In the assembled state, the cooking field plate 34a is provided to support at least one cooking battery.
    The induction cooking field device 10a has a user interface 36a for the introduction and / or selection of operating parameters (see Figure 1), for example, the heating power and / or the heating power density and / or the heating zone. Also, the user interface 36a is intended to give the user the value of an operating parameter. By way of example, user interface 36a could give the user the value of the operating parameter optically and / or acoustically.
    The induction cooking field device 10a has a control unit 38a, which is intended to execute actions and / or modify settings depending on the operating parameters entered through the user interface 36a.
    Also, the induction cooking field device 10a has multiple induction heating elements 40a (not shown in this embodiment). The induction heating elements 40a could be arranged, for example, in a row. Alternatively or additionally, the induction heating elements 40a could be arranged in matrix form. Also as an alternative, the induction heating elements 40a could be arranged in the form of a conventional cooking field, in which each of the induction heating elements 40a could, for example, define and / or form an autonomous heating zone . Next, only one of the induction heating elements 40a is described.
    The induction heating element 40a is provided to heat the cooking battery resting on the cooking field plate 34a above the induction heating element 40a. In an operating state, the induction heating element 40a, which is activated, supplies a magnetic flux that is intended to heat the cooking battery resting on it. The induction heating element 40a, which is activated, supplies the cooking battery supported in a state of operation by means of the magnetic flux it provides. In an operating state, the control unit 38a regulates the power supply to the activated induction heating element 40a. In the installation position, the induction heating element 40a is disposed under the cooking field plate 34a.
    In this exemplary embodiment, the induction cooking field device 10a has ten induction heating lines 12a (see Figures 2 to 5). Only one of each of the objects present several times is accompanied by a reference symbol in the figures. The induction heating lines 12a are composed largely of copper.
    In addition, the induction cooking field device 10a has a printed circuit board 14a (see Figures 2 to 5). In this exemplary embodiment, the induction heating lines 12a are arranged in the printed circuit board 14a. Alternatively, the induction heating lines 12a could be arranged next to the printed circuit board 14a.
    The printed circuit board 14a is made as a flexible printed circuit board. In this exemplary embodiment, the printed circuit board 14a has a thickness of approximately 50 µm and is made of two layers. The printed circuit board 14a has two layers 16a, 18a, namely, a first layer 16a and a second layer 18a.
    Each of the induction heating lines 12a has at least a first partial area that partially extends through the first layer 16a, and at least a second partial area that partially extends through the second layer 18a. The induction heating lines 12a extend through the layers 16a, 18a of the printed circuit board 14a.
    In this exemplary embodiment, the printed circuit board 14a has several openings 42a (see Figures 3 to 5). The induction heating lines 12a change between the layers 16a, 18a of the printed circuit board 14a through the openings 42a.
    The induction heating lines 12a are electrically connected in parallel with each other and are part of the induction heating element 40a. The induction heating element 40a has a coil 20a (not shown in the present embodiment). In the assembled state, the printed circuit board 14a is wound in a coil 20a.
    In the unwound state, the printed circuit board 14a is flat (see Figure 2). In the unwound state of the printed circuit board 14a, the induction heating lines 12a are displaced in sections perpendicular to the direction of the longitudinal extension 32a of the printed circuit board 14a (see Figures 3 to 5).
    In Figures 6 to 14, 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, the description of the embodiment of figures 1 to 5 can also be referred to. For differentiation of the exemplary embodiments, the letter "a" of the reference symbols of the embodiment example of Figures 1 to 5 has been replaced by the letters "b" to "d" in the reference symbols of the exemplary embodiments of Figures 6 to 14. In relation to components indicated in the same way, in particular, as regards components with the same reference symbols, it is also possible to refer basically to the drawing and / or the description of the embodiment example of Figures 1 and 5.
    Figure 6 shows a section of a printed circuit board 14b, wound in a coil 20b in the assembled state, of an alternative induction cooking field device 10b. In this exemplary embodiment, the induction cooking field device 10b has five induction heating lines 12b.
    The induction heating lines 12b are arranged in this exemplary embodiment next to the printed circuit board 14b. Alternatively, the induction heating lines 12b could be arranged on the printed circuit board 14b.
    In the unwound state of the printed circuit board 14b, the induction heating lines 12b are displaced in sections perpendicular to the direction of the longitudinal extension 32b of the printed circuit board 14b, although, to simplify, such has been dispensed with representation and induction heating lines 12b are represented in a straight line.
    When its cross section is observed, the printed circuit board 14b has a section 26b. In this exemplary embodiment, section 26b is formed by the entire printed circuit board 14b. Section 26b has a longitudinal extension 28b which is arranged vertically in the installation position. In the unwound state of the printed circuit board 14b, the printed circuit board 14b has a main extension plane that is arranged vertically in the installation position.
    Figure 7 shows eleven turns of the printed circuit board 14b in a cross-sectional representation starting from the center of the printed circuit board 14b wound in a coil 20b in the assembled state. The high compaction density of the induction heating lines 12b can be observed. Particularly advantageously, the negative influence between the adjacently arranged turns, in particular, in the form of a negative and / or influencing capacity, can be considerably reduced, as compared to a flat arrangement.
    Figure 8 shows a section of a printed circuit board 14c, wound in a coil 20c in the assembled state, of an alternative induction cooking field device 10c. In this exemplary embodiment, the induction cooking field device 10c has five induction heating lines 12c (see also Figure 9). In the unwound state of the printed circuit board 14c, the induction heating lines 12c are displaced in sections perpendicular to the direction of the longitudinal extension 32c of the printed circuit board 14c, although, to simplify, such has been dispensed with. representation and induction heating lines 12c are represented in a straight line.
    The printed circuit board 14c has a folded edge 22c (see Figures 9, 11 and 12). In the assembled state, the printed circuit board 14c is folded along the folded edge 22c. The folded edge 22c is oriented essentially parallel to the edge of the printed circuit board 14c. In the unwound state of the printed circuit board 14c, the folded edge 22 is oriented essentially parallel to the direction of the longitudinal extension 32c of the printed circuit board 14c.
    Next to the folded edge 22c, the printed circuit board 14c has three other folded edges 24c in this embodiment. Next, only one of the other folded edges 24c is described. In the assembled state, the printed circuit board 14c is folded along the other folded edge 24c. The other folded edge 24c is oriented essentially parallel to the folded edge 22c and essentially parallel to the edge of the printed circuit board 14c. In the unwound state of the printed circuit board 14c, the other folded edge 24c is oriented essentially parallel to the direction of the longitudinal extension 32c of the printed circuit board 14c.
    When its cross section is observed, the printed circuit board 14c has five sections 26c in this exemplary embodiment. Each of the sections 26c has a longitudinal extension 28c which, in the installation position, is arranged vertically. Each of the sections 26c are arranged adjacent to each other. Sections 26c arranged adjacent to each other are separated from each other by a folded edge 22c, 24c. The folded edges 22c, 24c, that is, the folded edge 22c and the other folded edge 24c, do not have induction heating lines 12c.
    Figure 10 shows a section of the printed circuit board 14c in the unwound, unfolded state. Starting from this unrolled, unfolded state, the printed circuit board 14c, which is made as a flexible printed circuit board 14c, is folded along the folded edges 22c, 24c of the printed circuit board 14c in a procedure for the manufacture of the induction cooking field device 10c. In one step of the process, the induction heating lines 12c are arranged next to the printed circuit board 14c. Alternatively, the induction heating lines 12c could be arranged on the printed circuit board 14c in one step of the process.
    In one step of the procedure, the printed circuit board 14c is folded along the folded edge 22c of the printed circuit board 14c (see Figures 10 and 11). The printed circuit board 14c has a fold, along which the printed circuit board 14c is folded and which is defined and / or predetermined by the folded edge 22c. Following the folding of the printed circuit board 14c around the folded edge 22c, the printed circuit board 14c has two sections 26c.
    In the next step of the procedure, the printed circuit board 14c is folded along the other folded edge 24c of the printed circuit board 14c (see Figures 11 and 12). The printed circuit board 14c has two folds, along which the printed circuit board 14c is folded and which are defined and / or predetermined by the folded edge 22c and the other folded edge 24c. Following the folding of the printed circuit board 14c around the folded edge 22c and around the other folded edge 24c, the printed circuit board 14c has three sections 26c (see Figure 12). The procedure is continued in this way until the desired number of sections 26c has been reached.
    Figure 13 shows a section of a printed circuit board 14d, wound in a coil 20d in the assembled state, of an alternative induction cooking field device 10d. In this exemplary embodiment, the induction cooking field device 10d has nine induction heating lines 12d (see also Figure 14). In the unwound state of the printed circuit board 14d, the induction heating lines 12d are displaced in sections perpendicular to the direction of the longitudinal extension 32d of the printed circuit board 14d, although, to simplify, such has been dispensed with representation and induction heating lines 12d are represented in a straight line.
    The printed circuit board 14d has a folded edge 22d (see Figures 13 and 14). In the assembled state, the printed circuit board 14d is folded along the folded edge 22d. Next to the folded edge 22d, the printed circuit board 14d has another folded edge 24d in this embodiment. In the assembled state, the printed circuit board 14d is folded along the other folded edge 24d. The other folded edge 24d is oriented essentially parallel to the folded edge 22d and essentially parallel to the edge of the printed circuit board 14d. In the unwound state of the printed circuit board 14d, the other folded edge 24d is oriented essentially parallel to the direction of the longitudinal extension 32d of the printed circuit board 14d.
    When its cross section is observed, the printed circuit board 14d has three sections 26d in this exemplary embodiment. Each of the sections 26d has a longitudinal extension 28d which, in the installation position, is arranged vertically.
    Reference symbols
    10 Induction cooking field device
    12 Induction heating line
    14 Printed circuit board
    16 Cap
    18 Cap
    twenty Coil
    22 Folded edge
    24 Another folded edge
    26 Section
    28 Longitudinal extension
    30 Induction cooking range
    32 Direction of the longitudinal extension
    3. 4 Cooking Field Plate
    36 User interface
    38 Control unit
    40 Induction heating element
    42 Opening
    权利要求:
    Claims (12)
    [1]
    one. Induction cooking field device with at least two induction heating lines (12a-d) and with at least one printed circuit board (14a-d), next to which and / or on which the lines are arranged induction heating (12a-d), characterized in that the printed circuit board (14a-d) is made as a flexible printed circuit board.
    [2]
    2. Induction cooking device according to claim 1, characterized in that the printed circuit board (14a-d) has a thickness of 300 µm maximum.
    [3]
    3. Induction cooking field device according to claims 1 or 2, characterized in that the induction heating lines (12a-d) are electrically connected in parallel with each other.
    [4]
    Four. Induction cooking field device according to one of the preceding claims, characterized in that the printed circuit board (14ad) has at least two layers (16a-d, 18a-d) through which the heating lines extend by induction (12a-d).
    [5]
    5. Induction cooking field device according to one of the preceding claims, characterized in that, at least in the unrolled state, the printed circuit board (14a-d) is flat and, at least in the assembled state, is wound in a coil (20a-d).
    [6]
    6. Induction cooking field device according to one of the preceding claims, characterized in that the printed circuit board (14cd) has at least one folded edge (22c-d), along which the printed circuit board is folded ( 14c-d) at least in the mounted state.
    [7]
    7. Induction cooking field device according to claim 6, characterized in that the folded edge (22c-d) does not have induction heating lines (12c-d).
    [8]
    8. Induction cooking device according to claims 6 or 7, characterized in that the printed circuit board (14c-d) has at least one other
    folded edge (24c-d), along which the printed circuit board (14c-d) is folded at least in the assembled state, and which extends approximately or exactly parallel to the folded edge (22c-d) .
    [9]
    9. Induction cooking field device according to one of the preceding claims, characterized in that, at least when its cross section is observed, the printed circuit board (14b-d) has at least one section (26b-d), which has a longitudinal extension (28b-d) that in the installation position is arranged approximately or exactly vertically.
    [10]
    10. Induction cooking field device according to one of the preceding claims, characterized in that, at least in the unwound state, at least one induction heating line (12a-d) of the induction heating lines (12a-d) it is displaced at least in sections perpendicular to the direction of the longitudinal extension (32a-d) of the printed circuit board (14a-d).
    [11]
    eleven. Induction cooking field with at least one induction cooking device (10a-d) according to one of the claims set forth above.
    [12]
    12. Method for manufacturing an induction cooking field device (10a-d) according to one of claims 1 to 10, with at least two induction heating lines (12a-d) and with at least one printed circuit board (14a-d), where the induction heating lines (12a-d) are arranged next to and / or on the printed circuit board (14a-d), characterized in that the printed circuit board (14a-d) is made as a flexible printed circuit board and is folded along at least one folded edge (22a-d, 24a-d) of the printed circuit board (14a-d).
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    同族专利:
    公开号 | 公开日
    ES2684180B1|2019-07-12|
    EP3383137B1|2022-03-02|
    EP3383137A1|2018-10-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2389767A|2002-06-10|2003-12-17|Univ City Hong Kong|Apparatus for energy transfer by induction|
    US20040108311A1|2002-12-06|2004-06-10|General Electric Company|Induction heating coil with integrated resonant capacitor and method of fabrication thereof, and induction heating system employing the same|
    US20130199027A1|2009-03-09|2013-08-08|Nucurrent, Inc.|Method for manufacture of multi-layer-multi-turn high efficiency inductors|
    WO2014056785A1|2012-10-11|2014-04-17|Arcelik Anonim Sirketi|A wireless cooking appliance operated on an induction heating cooktop|
    US20080174397A1|2007-01-19|2008-07-24|General Electric Company|High quality factor, low volume, air-core inductor|
    US20090004318A1|2007-06-26|2009-01-01|Xaloy, Incorporated|Induction tunnel coil|
    JP2011124115A|2009-12-11|2011-06-23|Panasonic Corp|Heating coil for induction heating device|
    DE102013214433A1|2012-09-07|2014-03-13|BSH Bosch und Siemens Hausgeräte GmbH|Induction heating units for cooking appliance i.e. hob trained cooking appliance, have heating pipelines provided with partial conductors, and circuit board formed in conductors, where heating pipelines are provided with strand structure|
    DE102013206870A1|2013-04-16|2014-10-16|E.G.O. Elektro-Gerätebau GmbH|Induction heating device with an induction coil and method for producing an induction heater|
    SG2013057377A|2013-07-26|2015-02-27|Tai Wah Distributors Pte Ltd|Hair appliances heating mat|
    法律状态:
    2018-10-01| BA2A| Patent application published|Ref document number: 2684180 Country of ref document: ES Kind code of ref document: A1 Effective date: 20181001 |
    2019-07-12| FG2A| Definitive protection|Ref document number: 2684180 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190712 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201730510A|ES2684180B1|2017-03-30|2017-03-30|INDUCTION COOKING FIELD DEVICE|ES201730510A| ES2684180B1|2017-03-30|2017-03-30|INDUCTION COOKING FIELD DEVICE|
    EP18161951.1A| EP3383137B1|2017-03-30|2018-03-15|Induction hob device|
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