• 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:
    Household appliance device The invention relates to a domestic appliance device (10), in particular, to a cooking field device, with at least one ferrite element (12) which is intended to concentrate a magnetic flux provided by a coil (14) and which has at least a percentage of MnO. In order to provide a generic household appliance device with better properties relative to its efficiency, it is proposed that the ferrite element (12) present at least a percentage of NiO. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2684172A1
    申请号:ES201730496
    申请日:2017-03-30
    公开日:2018-10-01
    发明作者:Cristina Diez Esteban；Pablo Jesus Hernandez Blasco；Georgios KOGIAS；Sergio Llorente Gil；Ignacio Lope Moratilla；Maria Elena Moya Albertin；Charalampos STERGIOU；Vasiliki TSAKALOUDI；Vassilios Zaspalis
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

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    DOMESTIC DEVICE DEVICE
    DESCRIPTION
    The present invention refers to a household appliance device according to the preamble of claim 1 and a process for the manufacture of a ferrite element for a household appliance device according to claim 10.
    Through the state of the art, a home appliance device with at least one ferrite element is already known which is intended to concentrate a magnetic flux provided by a coil. The ferrite element is composed of a percentage of MnO, a percentage of ZnO, and a percentage of Fe2O3, and is called the fernite element of MnZn. The ferrite element does not contain other materials.
    The invention solves the technical problem of providing a generic household appliance device with better properties relative to its efficiency. According to the invention, this technical problem is solved by the characteristics of claims 1 and 10, while advantageous embodiments and improvements of the invention can be extracted from the secondary claims.
    The present invention refers to a household appliance device, in particular, to a cooking appliance device and, advantageously, to a cooking field device, with at least one ferrite element which is intended to concentrate a flow magnetic provided by a coil and which has at least a percentage of MnO, where the ferrite element has at least a percentage of NiO, whereby efficiency, in particular, heating efficiency can be increased. Likewise, high efficiency of the ferrite element and, advantageously, in addition to a domestic appliance presenting the domestic appliance device, during a cooking process can be achieved. A cooking process can be maintained for a long time without any adaptation being made that might be necessary to protect the components of the cooking apparatus and / or to ensure a safe working area of the components of the cooking apparatus. At high temperatures, the power losses can be achieved to be small and, in particular, to be lower power losses than with an MnZn ferrite element, which is composed of a percentage of MnO, a percentage of ZnO, and a percentage of Fe2O3. By means of the percentage of NiO, an advantageously high Curie temperature of the ferrite element is made possible, which is higher than the known Curie temperature of a MnZn ferrite element, the
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    which is composed of a percentage of MnO, a percentage of ZnO, and a percentage of Fe2O3.
    The term "home appliance device", in particular, "cooking appliance device", advantageously, "cooking field device" and, particularly advantageously, "induction cooking field device" includes the concept of at least a part, in particular, a construction subgroup, of a domestic appliance, in particular, of a cooking appliance, advantageously, of a cooking field and, particularly advantageously, of an induction cooking field . The household appliance presenting the household appliance device could be, for example, a refrigerator chest and, advantageously, a refrigerator and / or freezer cabinet. Alternatively or additionally, the household appliance presenting the household appliance device could be, for example, a dishwasher and / or a washing machine and / or a dryer. Advantageously, the domestic appliance presenting the domestic appliance device is a cooking appliance. The household appliance made as a cooking appliance could be, for example, a cooking oven and / or a microwave oven and / or a grill appliance and / or a steam cooking appliance. Advantageously, the domestic appliance made as a cooking appliance is a cooking field and, preferably, an induction cooking field.
    The term "ferrite element" includes the concept of an element that is composed largely or entirely of ferrites. The term "ferrites" includes the concept of ferromagnetic and / or ferrimagnetic ceramic materials. 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 ferrite element is intended to improve the coupling between the coil and at least one cooking battery resting on top, which is arranged in the installation position at least partially above the coil. Likewise, the ferrite element is intended to significantly intensify the magnetic flux provided by the coil 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 ferrite element. In addition, the ferrite element is provided to partially or completely shield at least one place with respect to the magnetic flux provided by the coil. Also, the ferrite element is intended to minimize the dispersion fields provided by the coil.
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    The home appliance device presents the coil. The coil has at least one induction heating line. The term "coil" includes the concept of an inductive construction element with at least one specific inductance. The coil is made approximately or exactly in the form of an iron, in particular, in the form of a circular plate or, alternatively, in the form of an oval or of rectangle The coil has at least five, preferably at least ten, advantageously, at least fifteen and, preferably, at least twenty turns of the induction heating line. For example, the turns of at At least one coil section could be arranged in several planes, however, preferably, the turns of at least one coil section are arranged in one plane.
    The expression that an object has at least a "percentage of" another object includes the concept that the object is composed of the other object in a percentage by weight and / or volume percentage of more than 0%. MnO is manganese (II) oxide The ferrite element has a percentage by weight and / or volume percentage of MnO of at least 5%, preferably, at least 10%, advantageously, at least 15% and, of in a preferred manner, at least 20%, and has a percentage by weight and / or volume percentage of MnO of a maximum of 40%, preferably, a maximum of 35%, advantageously, a maximum of 30% and, in a manner preferred, maximum 25% NiO is nickel (II) oxide.
    The term "intended" includes the concepts of conceived and / or provided in a specific manner. The expression that an object is intended for a particular function includes the concept that the object satisfies and / or performs this purpose. function determined in one or more application and / or operating states.
    The coil could be made, for example, as a shock coil. However, the home appliance device preferably has a coil that is made as an induction heating element. The coil made as an induction heating element is intended to generate an alternating electromagnetic field with a frequency of between 20 kHz and 100 kHz, which is intended to be transformed into heat at the base of a metallic cooking battery, preferably ferromagnetic, supported above, through the induction of eddy currents and / or magnetic inversion effects. In this way, optimized heating of the placed cooking battery is made possible.
    In addition, it is proposed that the ferrite element present a percentage by weight and / or
    NiO volume percentage of at least 0.5%, preferably 1% as
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    minimum, advantageously, at least 1.5%, particularly advantageously, at least 2% and, preferably, at least 2.5%, so that higher performance can be achieved.
    Likewise, it is proposed that the ferrite element present a percentage by weight and / or volume percentage of NiO of a maximum of 10%, preferably, a maximum of 8%, advantageously, a maximum of 7%, in a particularly advantageous manner. , 6% maximum and, preferably, 5% maximum, which can prevent the percentage of NiO from being too high and / or that the positive effect on the yield caused by the percentage of NiO is reversed .
    In addition, it is proposed that the ferrite element present at least a percentage of ZnO. The ferrite element has a percentage by weight and / or volume percentage of ZnO of at least 2%, preferably, at least 3%, advantageously, at least 4% and, preferably, 5% as minimum, and has a percentage by weight and / or volume percentage of ZnO of a maximum of 20%, preferably, a maximum of 15%, advantageously, a maximum of 10% and, preferably, a maximum of 8% . ZnO is zinc oxide. Thus, an economic realization can be achieved.
    Likewise, it is proposed that the ferrite element present at least a percentage of Fe2O3. The ferrite element has a percentage by weight and / or volume percentage of Fe2O3 of at least 50%, preferably, at least 55%, advantageously, at least 60% and, preferably, 65% as minimum, and has a percentage by weight and / or volume percentage of Fe2O3 of a maximum of 90%, preferably, a maximum of 85%, advantageously, a maximum of 80% and, preferably, a maximum of 75% . Fe2O3 is iron (III) oxide. In this way, an economic realization can be achieved.
    Furthermore, it is proposed that the ferrite element have a Curie temperature of at least 250 ° C, preferably at least 260 ° C, advantageously, at least 270 ° C, particularly advantageously, 280 ° C at least and, preferably, at least 290 ° C, so that a cooking process with particularly high temperatures can be carried out and / or possible. High functionality can be guaranteed even at high temperatures.
    Likewise, it is proposed that the ferrite element has an initial permeability of at least 3,000, preferably, at least 3,200, advantageously, at least 3,400, particularly advantageously, at least 3,600 and, preferably, of to the
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    minus 3,800, with a frequency of approximately or exactly 10 kHz, with a magnetic flux of approximately or exactly 0.1 mT, and at a temperature between 180 ° C and 200 ° C. The initial permeability of the ferrite element is the previous permeability at the first magnetization of the ferrite element. The term "roughly or exactly" includes the concept that a deviation differs from a predetermined value by less than 25%, preferably, less than 10% and, particularly preferably, less than 5% from the predetermined value. Thus, the magnetic flux provided by the coil can be greatly intensified, whereby, in order to generate the same heat at the base of a supported cooking battery, a lower magnetic flux has to be generated than in an embodiment with an element of ferrite with a lower initial permeability.
    The ferrite element has a saturation flux density of at least 150 mT, preferably, at least 200 mT, advantageously, at least 250 mT and, preferably, at least 300 mT, with a frequency of approximately or exactly 10 kHz, with a magnetic field intensity of approximately or exactly 1,200 A / m, and at a temperature of approximately or exactly 200 ° C.
    The ferrite element is intended to cause power losses of 150
    Maximum mW / cm3, preferably, maximum 120 mW / cm3, advantageously, maximum 100 mW / cm3, particularly advantageously, maximum 80 mW / cm3 and, preferably, 65 mW / cm3 maximum, with a frequency of approximately or exactly 20 kHz, with a magnetic flux of approximately or exactly 200 mT, and at a temperature of approximately or exactly 200 ° C. Specifically, the ferrite element is intended to cause losses of maximum power at a temperature of approximately 190 ° C.
    Particularly high performance can be achieved by a method for manufacturing a household appliance device with at least one ferrite element that is intended to concentrate a magnetic flux provided by a coil and which has at least a percentage of MnO, at less a percentage of ZnO, and at least a percentage of NiO, where the ratio of Mn to Zn is maintained at least essentially and, preferably, completely constant with a variable percentage of NiO. As the percentage of NiO is increased, the percentages of MnO and ZnO are reduced to the same extent. By changing the percentage of NiO, the ratio of the percentage of MnO and the percentage of ZnO remains at least essentially and, preferably, completely constant.
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    The household appliance device described is not limited to the application or to the embodiment described above, and may in particular have a number of elements, components, and particular units that differ from the amount mentioned herein, 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 a domestic appliance with a domestic appliance device, in view
    schematic superior, and
    Fig. 2 a coil made as an induction heating element and five
    Ferrite elements of the household appliance device, in schematic view from below on the coil.
    Figure 1 shows a domestic appliance 16 with a domestic appliance device 10. The domestic appliance 16 could be, for example, a refrigerator and / or a washing machine. In this exemplary embodiment, the domestic appliance 16 is a cooking appliance, in particular an induction cooking appliance. The household appliance 16 could be, for example, a cooking oven, in particular an induction cooking oven, and / or a kitchen, in particular an induction cooker, and / or a cooking oven, in particular, an induction cooker. The domestic appliance 16 is made as a cooking field, in particular as an induction cooking field. In this exemplary embodiment, the household appliance device 10 is made as a cooking appliance device, in particular, as an induction cooking appliance device and, in particular, as a cooking field device, in particular, as a cooking device. induction cooking range.
    The domestic appliance device 10 has a domestic appliance plate 18. In the
    state mounted, the home appliance plate 18 forms a part of a housing
    exterior of the domestic appliance 16. In the installation position, the appliance plate
    domestic 18 forms a part of the outer casing of the apparatus directed towards the user.
    The home appliance plate 18 could be made, for example, as a front plate and / or
    cover plate of the outer housing of the domestic appliance 16 made as an oven
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    cooking and / or as a kitchen and / or as a kitchen oven and / or as a refrigerator and / or as a washing machine. In the present embodiment, the domestic appliance plate 18 is made as a cooking field plate. In the assembled state, the domestic appliance plate 18 is provided to support at least one cooking battery.
    In addition, the home appliance device 10 has a user interface 20 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 20 is intended to give the user the value of an operating parameter. By way of example, the user interface 20 could give the user the value of the operating parameter optically and / or acoustically.
    The home appliance device 10 also has a control unit 22, which is intended to perform actions and / or modify settings depending on the operating parameters entered through the user interface 20.
    In this exemplary embodiment, the home appliance device 10 has several coils 14 (see Figure 2). Only one of the coils 14 is shown. As an example, at least a part of the coils 14 could be arranged in a matrix form. Alternatively or additionally, at least a part of the coils 14 could in each case form an autonomous heating zone. The coils 14 are essentially identical, so only one coil 14 of the coils 14 is described below.
    The coil 14 is made as an induction heating element, and is intended to heat the cooking battery supported in the installation position on the domestic appliance plate 18 above the coil 14. In an operating state, the coil 14 supplies cooking battery power resting on top of it. The control unit 22 regulates in a state of operation the power supply to the coil 14. In the installation position, the coil 14 is arranged under the domestic appliance plate 18.
    The home appliance device 10 has at least one coil holder 24 (see Figure 2). For each coil 14, the home appliance device 10 has exactly one coil holder 24. In the installation position, the coil 14 is disposed on the coil holder 24.
    In this exemplary embodiment, the home appliance device 10 presents for each
    coil 14 five ferrite elements 12 (see figure 2). Only one of each of
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    The objects present several times are accompanied by a reference symbol in the figures. Alternatively, the domestic appliance device 10 could have for each coil 14 a smaller amount of ferrite elements 12, for example, two, preferably, three or, advantageously, four ferrite elements 12. Also alternatively, 5 the domestic appliance device 10 could have for each coil 14 a larger quantity of ferrite elements 12, for example, at least six, preferably at least eight and, advantageously, at least ten ferrite elements 12. The Ferrite elements 12 are essentially identical, whereby only one ferrite element 12 of the ferrite elements 12 is described below.
    10 In the assembled state, the ferrite element 12 is arranged next to the coil holder 24, in particular, it is fixed thereto. The ferrite element 12 is provided to concentrate a magnetic flux provided by a coil 14. In the installation position, the ferrite element 12 is disposed below the coil 14.
    The ferrite element 12 has a percentage of MnO. In this exemplary embodiment, the ferrite element 12 has a percentage of MnO of approximately 19.93%. In addition to the percentage of MnO, the ferrite element 12 has a percentage of NiO.
    Ferrite elements 12 with different percentages of NiO are conceived. The following table shows some examples of ferrite elements 12 with different percentages of NiO. The ferrite element 12 called "F01" is part of the state of the art and, therefore, 20 is not part of the present invention.
     F01 F01 Ni08 F01 Ni16 F01 Ni24 F01 Ni32 F01 Ni40 F01 Ni48
     Fe2Ü3 [%]  71.50 71.50 71.50 71.50 71.50 71.50 71.50
     MnO [%]  22.45 21.82 21.19 20.56 19.93 19.30 18.67
     ZnO [%]  6.05 5.88 5.71 5.54 5.37 5.20 5.03
     NiO [%]  0.00 0.80 1.60 2.40 3.20 4.00 4.80
     Total [%]  100.00 100.00 100.00 100.00 100.00 100.00 100.00
     Mn / Zn  3.71 3.71 3.71 3.71 3.71 3.71 3.71
     Fe / Mn  3.18 3.28 3.37 3.48 3.59 3.71 3.83
     Curie temperature [° C]  250 260 270 280 290 300 310
     F01 F01 Ni08 F01 Ni16 F01 Ni24 F01 Ni32 F01 Ni40 F01 Ni48
     Density of saturation flow [mT]  242 256 279 292 306 31 8 329
     Power losses [mW / cm3]  87 74 64 61 65 76 91
     Position of power losses [° C]  80 100 1 40 160 180 190 21 0
     Initial permeability  3,919 4,090 3,904 3,968 3,834 3,512 3,234
    In the series of tests that were carried out with the different ferrite elements 12 shown in the table, the ferrite element 12 called "F01N32" has proved to be particularly preferred. Next, this ferrite element 12 5 called "F01Ni32" is described.
    In this exemplary embodiment, the ferrite element 12 has a percentage, in particular, a percentage by weight and / or a percentage by volume, of NiO, of approximately 3.2%. In addition to the percentage of MnO and the percentage of NiO, the ferrite element 12 has a percentage of ZnO. In the present example of
    10, the ferrite element 12 has a ZnO percentage of approximately 5.37%.
    Together with the percentage of MnO, the percentage of ZnO, and the percentage of NiO, the ferrite element 12 has a percentage of Fe2O3. In this exemplary embodiment, the ferrite element 21 has a Fe2O3 percentage of approximately 71.50%.
    The ferrite element 12 has a Curie temperature of approximately 290 ° C. In this exemplary embodiment, the ferrite element 12 has a saturation flux density of approximately 306 mT, with a frequency of approximately 10 kHz, with a magnetic field strength of approximately 1,200 A / m, and at a temperature of approximately 200 ° C.
    20 The ferrite element 12 is intended to cause power losses of approximately 65 mW / cm3, with a frequency of approximately 20 kHz, with a magnetic flux of approximately 200 mT, and at a temperature of approximately 200 ° C. The ferrite element 12 is intended to cause maximum power losses at a temperature of approximately 180 ° C.
    In the present embodiment, the ferrite element 12 has an initial permeability of approximately 3,834. In a process for the manufacture of the ferrite element 12 for the home appliance device 12, the ratio of Mn to Zn is essentially constant with a variable percentage of NiO.
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    Reference symbols
     10  Home Appliance Device
     12  Ferrite element
     14  Coil
     16  Domestic appliance
     18  Home appliance plate
     twenty  User interface
     22  Control unit
     24  Coil holder
    权利要求:
    Claims (10)
    [1]
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    1. Home appliance device, in particular, cooking field device, with at least one ferrite element (12) which is intended to concentrate a magnetic flux provided by a coil (14) and which has at least a percentage of MnO, characterized in that the ferrite element (12) has at least a percentage of NiO.
    [2]
    2. Home appliance device according to claim 1, characterized by the coil (14), which is made as an induction heating element.
    [3]
    3. Household device according to claims 1 or 2, characterized in that the ferrite element (12) has a weight percentage and / or a volume percentage of at least 0.5% NiO.
    [4]
    4. Home appliance device according to one of the preceding claims, characterized in that the ferrite element (12) has a weight percentage and / or volume percentage of 10% maximum.
    [5]
    5. Home appliance device according to one of the preceding claims, characterized in that the ferrite element (12) has at least a percentage of ZnO.
    [6]
    6. Home appliance device according to one of the preceding claims, characterized in that the ferrite element (12) has at least a percentage of Fe2O3.
    [7]
    7. Home appliance device according to one of the preceding claims, characterized in that the ferrite element (12) has a Curie temperature of at least 250 °.
    [8]
    8. Household appliance according to one of the preceding claims, characterized in that the ferrite element (12) has an initial permeability of at least 3,000.
    [9]
    9. Domestic appliance, in particular, cooking range, with at least one domestic appliance device (10) according to one of the claims set forth above.
    [10]
    10. Method for manufacturing a household appliance device (10) according to one of claims 1 to 8, with at least one ferrite element (12) which is intended to concentrate a magnetic flux provided by a coil (14) and 5 which has at least a percentage of MnO, at least a percentage of ZnO, and at
    minus a percentage of NiO, where the ratio of Mn to Zn remains at least essentially constant with a variable percentage of NiO.
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    同族专利:
    公开号 | 公开日
    CN110447305A|2019-11-12|
    EP3603338A1|2020-02-05|
    ES2684172B1|2019-07-29|
    WO2018178787A1|2018-10-04|
    US20200018485A1|2020-01-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4467162A|1980-06-13|1984-08-21|Riccar Co., Ltd.|Exciting arrangement for induction heating process|
    US4629843A|1984-04-11|1986-12-16|Tdk Corporation|Induction cooking apparatus having a ferrite coil support|
    ES2574845A1|2014-12-22|2016-06-22|Bsh Electrodomésticos España, S.A.|Cooking field device and procedure with a cooking field device |
    WO2016124526A1|2015-02-05|2016-08-11|Würth Elektronik eiSos Gmbh & Co. KG|Inductor, in particular for magnetically coupled energy transfer, as well as method for operating an inductor of this type|
    JPS56166694U|1980-05-15|1981-12-10|
    JPS596117B2|1980-05-27|1984-02-09|Oki Denki Kogyo Kk|
    JPS60230394A|1984-04-28|1985-11-15|Tdk Corp|Induction heating coil unit|
    US20090084777A1|2006-10-02|2009-04-02|Oh Doo Yong|Cooking device having an induction heating element|
    EP2048914B1|2007-10-10|2013-10-02|LG Electronics Inc.|A cooking device having an induction heating element|
    ES2434856R1|2011-10-21|2013-12-27|Bsh Electrodomesticos Espana|Induction heating device and domestic induction heating device with said device|
    ITUB20152251A1|2015-07-16|2017-01-16|E Wenco S R L|Induction heating element.|
    法律状态:
    2018-10-01| BA2A| Patent application published|Ref document number: 2684172 Country of ref document: ES Kind code of ref document: A1 Effective date: 20181001 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201730496A|ES2684172B1|2017-03-30|2017-03-30|DOMESTIC DEVICE DEVICE|ES201730496A| ES2684172B1|2017-03-30|2017-03-30|DOMESTIC DEVICE DEVICE|
    US16/490,614| US20200018485A1|2017-03-30|2018-03-12|Home appliance device|
    CN201880022419.3A| CN110447305A|2017-03-30|2018-03-12|Home appliance device|
    PCT/IB2018/051617| WO2018178787A1|2017-03-30|2018-03-12|Home appliance device|
    EP18718198.7A| EP3603338A1|2017-03-30|2018-03-12|Home appliance device|
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