• 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:
    The invention relates to a cooking field device with at least one heating coil (10a; 10b), with at least one ferrite element (12a; 12b), and with at least one support unit (14a; 14b) having at least one coil support (16a; 16b) which is provided to support the heating coil (10a; 10b) partially or completely, and which has at least one ferrite support (18a; 18b) which is provided to hold the ferrite element (12a; 12b) partially or completely. In order to improve the efficiency of the cooking field device, it is proposed that the minimum distance between the heating coil (10a; 10b) and the ferrite element (12a; 12b) should be at least 0.8 mm at least in an area proximate an inner side of the heating coil (20a; 20b) of the heating coil (10a; 10b). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2574815A1
    申请号:ES201431897
    申请日:2014-12-22
    公开日:2016-06-22
    发明作者:Sandra Aranda Vázquez；Cristina DÍEZ ESTEBAN；Diego Dionisio Micolau；Pablo Jesús Hernández Blasco；Ignacio Lope Moratilla；María Elena Moya Albertín
    申请人:BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

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    directly a housing area of ferrite element 32a partially or completely. In the present case, the coil support 16a, in particular, the support roll 38a, and the ferrite support 18a form the ferrite element housing area 32a, and delimit it directly. In addition, the ferrite support 18a has a second locking element 28a which is arranged on one side of the support element 42a directed towards the coil support 16a, and which is made as a lift relative to the support element 42a. In the present case, the second locking element 28a is made as a fitting boss, and is arranged in a marginal area of the support element 42a.
    Also, the cooking field device comprises a ferrite element 12a (see Figure 3), specifically, the heating unit 36a comprises the ferrite element 12a. The ferrite element 12a is composed of a high-performance ferrite element, in the present case, of 3C90. Alternatively, it is conceived that a ferrite element is composed of 3C91, 3C92, 3C93, 3C94, 3C95, 3C96 and / or 3C97. The ferrite element 12a is made in one piece and essentially or totally laminar. Regardless of the manufacturing tolerances, the ferrite element 12a is flat, so it has a thickness of essential or totally constant material that, in the present case, corresponds roughly or exactly to the height of the first blocking element 26a , amounting to approximately 5 mm. In top view, the ferrite element 12a has an alveolar shape and, in the present case, an average diameter of approximately 75 mm. In addition, the ferrite element 12a has a central recess 44a, which has a circular view and a diameter between 10 mm and 25 mm, in this case, approximately 20 mm. In addition, the ferrite element 12a is grooved, whereby it has a groove 46a that extends from the central recess 44a radially to a first marginal area of the ferrite element12a, and has a width of approximately 12 mm. In addition, the ferrite element 12a has a socket drain 48a, which is arranged in a second marginal area of the ferrite element 12a. The second marginal area is disposed on one side of the ferrite element 12a opposite the first marginal area. As an alternative, it is conceived that a ferrite element has several lace recesses.
    Figure 4 shows the support unit 14a and the ferrite element 12a in the assembled state, where the ferrite support 18a has been partially removed for reasons of clarity and to facilitate the description. In a first assembly step, the ferrite element 12a is introduced into the ferrite element housing area 32a in a horizontal direction 34a with respect to the main extension plane of the ferrite element 12a. He
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    Ferrite support 18a is provided to hold the ferrite element 12a. In addition, the first locking element 26a serves as a guide for the ferrite element 12a. In the assembled state, an outer lateral surface 50a of the first locking element 26a rests in shape on an inner lateral surface 52a of the drain 44a of the ferrite element 12a. In addition, the second locking element 28a fits in the state mounted in the socket drain 48a of the ferrite element 12a. Therefore, the first and second locking element 26a, 28a fix the mounting position of the ferrite element 12a, whereby the ferrite element 12a is arranged in the ferrite element housing area 32a in the assembled state . In the present case, the ferrite element 12a is fixed to the support unit 14a only in drag of form and / or force, and not in material connection. Likewise, the coil support 16a and the ferrite element 12a form in the mounted state the heating coil housing area 22a and, in the present case, delimit it directly.
    The cooking field device comprises a heating coil 10a (see Figures 6 and 7), specifically, the heating unit 36a comprises the heating coil 10a, which is exactly made up of a heating line. In a second assembly step, the heating line is wound around the support roll 38a, forming the heating coil 10a, which has 20 turns. In the assembled state, the heating coil 10a is arranged in the heating coil housing area 22a, whereby the coil support 16a and the ferrite element 12a are provided to hold and / or support the heating coil 10a . The heating coil 10a is made with an annular shape and, in top view, it has a circular shape. The heating coil 10a has an inner side of the heating coil 20a, which corresponds to a side of the heating coil 10a directed towards the support roll 38a, and an outer side of the heating coil 54a, which corresponds with one side of the heating coil 10a opposite the support roll 38a. In addition, the heating coil 10a comprises two or more connection contacts (not shown), which are intended to supply electric current to the heating coil 10a, which is intended to heat a cooking battery through effects of currents in swirl and / or magnetic inversion.
    In the present case, the heating coil 10a has a contact surface 24a with the ferrite element 12a, whereby the heating coil 10a and the ferrite element 12a touch. Furthermore, without taking into account the manufacturing tolerances of the heating coil 10a and the ferrite element 12a, the minimum distance, in the present case at least approximately infinitesimal, between the heating coil


    10a and the ferrite element 12a is constant in radial direction with respect to the main extension plane of the heating coil 10a. Therefore, regardless of manufacturing tolerances, the minimum distance between the heating coil 10a and the ferrite element 12a in a central area of the heating coil 10a corresponds to the minimum distance between the heating coil 10a and the ferrite element 12a in a marginal area of the heating coil 10a, whereby the minimum distance between the heating coil 10a and the ferrite element 12a amounts to a maximum of 0.8 mm at least in an area close to inner side of heating coil 20a. In the present case, the minimum distance between the ferrite element 12a and the heating coil 10a amounts to a maximum of 0.8 mm at any point of the heating coil 10a.
    In Figure 8, another embodiment of the invention is shown. The following description and the corresponding drawing are essentially limited to the differences between the embodiments, where, in relation to components named in the same way, in particular, in relation to components with the same reference symbols, it can also be basically referred to drawing and / or the description of the other embodiment of figures 1 to 7. For the differentiation of the examples of embodiment, the letter "a" has been postponed to the reference symbols of the embodiment example of figures 1 to 7 and, in the exemplary embodiment of figure 8, it has been replaced by the letter "b"
    The embodiment example of Figure 8 differs basically from the previous embodiment example in a coil holder 16b.
    In the present case, the coil support 16b has two lateral delimiter elements 40b, 41b. A first lateral delimiter element 40b corresponds here to the lateral delimiter element 40a of the previous embodiment, and a second lateral delimiter element 41b is made as a mica element. In top view, the second side delimiter element 41b has a circular shape and, in the present case, a diameter of approximately 72 mm. The material thickness of the second side delimiter element 41b in this case amounts to approximately 0.2 mm. A support roll 38b of the coil support 16b and the side delimiter elements 40b, 41b here form a heating coil housing area 22b, and delimit it directly. In addition, a ferrite support 18b and the second lateral boundary element 41b form a housing area of ferrite element 32b, and delimit it directly. Therefore, a ferrite element 12b delimits the heating coil housing area 22b indirectly.
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    Reference symbols
    Heating coil
    12 Ferrite element
    14 Support unit
    16 Coil holder
    18 Ferrite support
    Inner side of heating coil
    22 Heating coil housing area
    24 Contact surface
    26 Blocking element
    28 Blocking element
    Cooking field
    32 Ferrite Element Housing Area
    3. 4 Horizontal direction
    36 Heating unit
    38 Support roll
    Lateral delimiter element
    41 Lateral delimiter element
    42 Support element
    44 Emptying
    46 Groove
    48 Lace emptying
    Outer side surface
    52 Inner side surface
    54 External side of heating coil
    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
    DE102015220788A1|2016-06-23|
    ES2574815B1|2017-04-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3980858A|1973-08-22|1976-09-14|Mitsubishi Denki Kabushiki Kaisha|Exciter for induction heating apparatus|
    US5053593A|1989-01-23|1991-10-01|Nikko Corporation Ltd.|Low-frequency electromagnetic induction heater|
    US5428207A|1992-03-14|1995-06-27|E.G.O. Elecktro-Gerate Blanc U. Fischer|Inductive based cooking system|
    US20080283518A1|2004-01-12|2008-11-20|BSH Bosch und Siemens Hausgeräte GmbH|Device for Warming Food by Means of Inductive Coupling and Device for Transferring Energy|
    US10605464B2|2012-10-15|2020-03-31|Whirlpool Corporation|Induction cooktop|
    ITTO20120896A1|2012-10-15|2014-04-16|Indesit Co Spa|INDUCTION HOB|
    EP3432682A1|2017-07-18|2019-01-23|Whirlpool Corporation|Method for operating an induction cooking hob and cooking hob using such method|
    US10993292B2|2017-10-23|2021-04-27|Whirlpool Corporation|System and method for tuning an induction circuit|
    EP3544374B1|2018-03-23|2020-09-23|Whirlpool Corporation|Induction cooktop with improved magnetic flux concentrating foil|
    US11140751B2|2018-04-23|2021-10-05|Whirlpool Corporation|System and method for controlling quasi-resonant induction heating devices|
    法律状态:
    2017-04-11| FG2A| Definitive protection|Ref document number: 2574815 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170411 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201431897A|ES2574815B1|2014-12-22|2014-12-22|Cooking field device and procedure for mounting a cooking field device|ES201431897A| ES2574815B1|2014-12-22|2014-12-22|Cooking field device and procedure for mounting a cooking field device|
    DE102015220788.9A| DE102015220788A1|2014-12-22|2015-10-23|Hob device and method of assembling a Hob device|
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