Domestic appliance device

Abstract

The invention relates to a domestic appliance device (10a; 10b; 10c; 10d), in particular a cooktop device, comprising at least one first rectifier (12a; 12b; 12c; 12d), at least one first switching element (13a; 13b; 13c; 13d) and at least one second switching element (14a; 14b; 14c; 14d), which are bridged together and form a first inverter (15a; 15b; 15c; 15d), and at least one heat sink (16a; 16b; 16c; 16d), on which the at least one first rectifier (12a; 12b; 12c; 12d), the at least one first switching element (13a; 13b; 13c; 13d) and the at least one second switching element (14a; 14b; 14c; 14d) are preferably disposed. According to the invention, the at least one first rectifier (12a; 12b; 12c; 12d) is disposed between the at least one first switching element (13a; 13b; 13c; 13d) and the at least one second switching element (14a; 14b; 14c; 14d).

Description

[0001] Household appliance device

[0002] The invention relates to a household appliance device according to the preamble of claim 1. Furthermore, the invention relates to a household appliance with a household appliance device according to the invention.

[0003] In household appliances designed as induction cooktops, it is already known from the prior art that the energy transfer from the mains to the induction coils involves a two-stage power conversion process, whereby an AC mains voltage is first filtered and then rectified by a rectifier. The resulting DC bus voltage is connected to power inverters to supply high-frequency current. For this purpose, known circuit boards or printed circuit boards are provided, which are equipped with, among other things, corresponding rectifiers or inverters and are adapted or matched to the respective household appliance or induction cooktop.

[0004] One problem is that the high power dissipation present in both rectifiers and inverters requires an additional heat sink. However, a cost-effective solution for heat dissipation from both rectifiers and inverters can be achieved by arranging them on the same heat sink, which is also already known from the prior art.

[0005] The object of the invention is in particular, but not limited to, to provide an advantageous development of a generic household appliance device which, for example, enables improved cable or conductor routing compared to known household appliances.

[0006] In particular, the object of the invention is to provide an improved household appliance that has a reduced structural complexity compared to known devices and preferably also has improved thermal distribution, thus being able to be cooled more efficiently. According to the invention, this object is achieved by the features of claim 1. Advantageous embodiments and further developments of the invention can be found in the dependent claims and the following description.

[0007] The invention is based on a household appliance device, in particular a hob device and preferably an induction hob device, comprising at least one first rectifier, at least one first switching element and at least one second switching element, which are bridged together and form a first inverter, and at least one heat sink, on which the at least one first rectifier, the at least one first switching element and the at least one second switching element are preferably arranged.

[0008] According to the invention, it is proposed that the at least one first rectifier is arranged between the at least one first switching element and the at least one second switching element.

[0009] In this way, a symmetrical arrangement of the at least one first rectifier and the at least one first switching element and the at least one second switching element on the at least one heat sink can be enabled. Thus, the complexity of the household appliance device or the complexity of the arrangement of the rectifier and the switching elements of the one inverter can be reduced, which can also result in reduced assembly effort. The symmetrical arrangement of the components also enables improved thermal load distribution, thus enabling more efficient cooling of the household appliance device.

[0010] Preferably, the at least one heat sink has a flat surface on which the at least one first switching element and the at least one second switching element and the at least one first rectifier can be arranged.

[0011] It may also be provided that the at least one heat sink has at least two angled partial surface areas on which the at least one first switching element, the at least one second switching element, and the at least one first rectifier can be arranged. It may be possible for the at least one first switching element, the at least one second switching element, and the at least one first rectifier to be arranged on the same planes of the at least one heat sink.

[0012] It may be possible for the at least one first switching element and the at least one second switching element and the at least one first rectifier to be arranged on different levels of the at least one heat sink.

[0013] The invention is not limited to the arrangement of just one rectifier, for example the at least one first rectifier, between two interconnected switching elements. Rather, several configurations are contemplated, particularly those deemed appropriate by a person skilled in the art depending on the design of the respective household appliance. The number of rectifiers arranged between two interconnected switching elements can be one. It is also possible for the number to be between 1 and 10, preferably between 1 and 5, and particularly preferably between 1 and 3. In particular, it can be provided that adjacent rectifiers are surrounded by two interconnected switching elements or are arranged between them.

[0014] Such a symmetrical arrangement according to the invention can also be very useful when an induction hob, for example, has two circuit boards, since the design of both boards can be identical and instead of two fans, only a single shared fan can be used for cooling. This not only reduces the assembly effort for the circuit board(s), but also makes it possible to save on additional components, such as fans. If two circuit boards were used in this configuration, each with an asymmetrical arrangement of the rectifier and the inverters, the circuit boards would have to be rotated if a single shared fan were used, which would place the rectifiers on each board on opposite sides. However, this could have a negative impact on the performance of the circuit boards, as their heat dissipation is not equal due to the opposite air supply.

[0015] The numbering of the parts and / or components identified, described and mentioned in the application, in particular the inverters and / or the switching elements and / or the rectifiers (e.g. first switching element, second switching element, third switching element, fourth switching element, fifth switching element, sixth switching element, seventh switching element, eighth switching element, first inverter, second inverter, third inverter, fourth inverter, first rectifier, second rectifier, etc.) mentioned in the disclosure is intended only to contribute to improved understanding and is in no way to be interpreted in a restrictive manner with regard to an existing number.

[0016] Preferably, the household appliance has exactly one fan. The exact one fan is preferably provided for ventilating the household appliance.

[0017] It may also be possible for one fan to be provided for the ventilation of multiple household appliances. Preferably, one fan is provided for the ventilation of exactly two household appliances. This is particularly preferred for two household appliances according to the invention, particularly preferably identical, each with a symmetrical arrangement of rectifiers and inverters. Thus, efficient cooling of the two household appliances can be achieved with just one fan, thus eliminating the need for a fan.

[0018] However, it may also be possible for the household appliance to have more than one fan. In particular, it may be possible for the number of fans to exactly match the number of household appliances.

[0019] A “household appliance device,” in particular a “cooktop device,” and particularly advantageously an “induction cooktop device,” is to be understood as at least one part, in particular a subassembly, of a household appliance, in particular a cooktop and particularly advantageously an induction cooktop. The household appliance device can preferably comprise one or more populated printed circuit boards and can particularly advantageously be formed by one or more such printed circuit boards. Advantageously, a household appliance comprising the household appliance device is a cooking appliance. A household appliance designed as a cooking appliance could, for example, be an oven and / or a microwave and / or a grill and / or a steamer. Advantageously, a household appliance designed as a cooking appliance is a cooktop and preferably an induction cooktop.Alternatively, the household appliance could also be a laundry or dishwashing machine, for example a washing machine, a tumble dryer and / or a dishwasher.

[0020] "Intended" should be understood as specifically programmed, designed, and / or equipped. The fact that an object is intended for a specific function should be understood in particular as meaning that the object fulfills and / or performs this specific function in at least one application and / or operating state.

[0021] Preferably, the first switching element and / or the second switching element is designed as a semiconductor component, in particular as an IGBT (Insulated Gate Bipolar Transistor) or as a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor).

[0022] Preferably, an inverter with exactly one switching element is designed as a "single-switch inverter." Preferably, an inverter with exactly two switching elements is designed as a "half-bridge inverter," with the two switching elements being arranged in particular in a half-bridge topology. Preferably, an inverter with exactly four switching elements is designed as a "full-bridge inverter," with the four switching elements being arranged in particular in a full-bridge topology.

[0023] It is further proposed that exactly two switching elements be provided, which are arranged in a half-bridge topology and form the first inverter. This makes it possible to provide a particularly simply designed household appliance with very little assembly effort, which can also be efficiently cooled, so that the cooling effort can also be reduced accordingly. The exactly two switching elements can preferably be the first switching element and the second switching element.

[0024] In a half-bridge inverter, the rectifier(s) is / are arranged between the switching elements, and the switching elements are preferably arranged symmetrically around the rectifier(s). Such a symmetrical arrangement makes it possible to provide a symmetrically designed household appliance. This makes it possible to reduce the complexity of the household appliance. Thus, a corresponding household appliance can be manufactured with reduced assembly effort. Furthermore, such a household appliance can have improved thermal load distribution and be cooled more efficiently overall.

[0025] A half-bridge inverter according to the invention comprises a series circuit of two half-bridge switches, namely a “high-side” half-bridge switch, in particular formed by the at least one first switching element, and a “low-side” half-bridge switch, in particular formed by the at least one second switching element, which is connected to a power supply provided by a rectifier, in particular the at least one first rectifier.

[0026] Preferably, exactly one rectifier is arranged between the exactly two switching elements which are arranged in a half-bridge topology and which form the first inverter.

[0027] However, it may also be possible for multiple rectifiers to be arranged between the two switching elements arranged in a half-bridge topology and forming the at least one first inverter. According to the above explanations, between 1 and 10 rectifiers, preferably between 1 and 5, and particularly preferably between 1 and 3 rectifiers, may be present. The rectifiers are preferably arranged side by side.

[0028] In a further development of the invention with at least partial full-bridge topology and at the same time reduced assembly effort, it can be provided that the one first inverter and / or the at least one second inverter each has four switching elements.

[0029] Generally, within the scope of the invention, it can be provided that an inverter has two switching elements bridged together. In particular, it can be possible for an inverter to be formed from two switching elements bridged together. It can also be possible for at least one inverter to have more than two switching elements bridged together. It can be possible for the number of switching elements bridged together to be 3, 4, 5, 6, 7, or more.

[0030] For more efficient conversion of direct current to alternating current and thus also for the provision of a more efficient household appliance, a further development of the invention can provide that the household appliance has at least one second inverter, which has at least one third switching element and preferably at least one fourth switching element and which is arranged adjacent to the at least one first switching element or the at least one second switching element on the at least one heat sink. The arrangement of further inverters, which accordingly have further switching elements, can also have an advantageous effect on the thermal load distribution of the components, which also allows for simplified ventilation and cooling and thus can also make the household appliance more durable.

[0031] It can further be provided that the household appliance has at least a third inverter, which has at least a fifth switching element and at least a sixth switching element and is arranged on the at least one heat sink. The arrangement of additional inverters, which accordingly have additional switching elements, can also have a beneficial effect on the thermal load distribution of the components, thereby simplifying ventilation and cooling and thus increasing the durability of the household appliance.

[0032] Thus, the household appliance device can have at least one further inverter, which has at least two further switching elements, which are preferably arranged on the at least one heat sink. It may also be possible for the household appliance device to have multiple inverters, in particular 2 to 10 inverters, preferably 3 to 7 inverters.

[0033] In one embodiment of the invention, it may be possible for the at least one rectifier, the at least one first switching element, and the at least one second switching element to be arranged between the at least one second inverter and the at least one third inverter. This allows a symmetrical arrangement of the rectifier and the inverters, whereby improved thermal load distribution can be achieved and whereby improved, simplified, or more efficient ventilation and thus cooling of the household appliance can be achieved. The household appliance can thus be better protected against overheating and thus have a longer service life. Furthermore, such a household appliance can be particularly easy to install due to the symmetrical arrangement.It may also be possible within the scope of the present invention for the at least one second inverter and the at least one third inverter to be arranged adjacent to one another.

[0034] In a further embodiment of the invention, an odd number of inverters can be present, which are preferably arranged on the heat sink. In particular, the inverter, which has two interconnected switching elements between which at least one rectifier is arranged, enables a symmetrical arrangement to be achieved, which has the advantages listed above and below, despite an odd number of inverters. Thus, a symmetrical arrangement with the advantages as disclosed and described can be achieved with fewer inverters, meaning that components, in particular inverters, can be saved.

[0035] However, an alternative embodiment of the invention can also be such that an even number of inverters is present, which are preferably arranged on the at least one heat sink. This can be advantageous if the respective household appliance, in particular a cooktop, has corresponding requirements.

[0036] It is further proposed that the at least one first rectifier be arranged between two inverters and preferably enclosed. This can enable further improved thermal load distribution of the household appliance. Furthermore, an even more compact household appliance can be provided, which can be correspondingly easily cooled.

[0037] In a further embodiment of the invention, in which more than three inverters can be present and in which only the use of one heat sink and / or one fan is possible, in which thus, in addition to a reduced assembly effort, fewer components are required, in particular for cooling or heat dissipation, it can be provided that the household appliance device has at least one further rectifier, which is arranged on the at least one heat sink between two further switching elements which are bridged together and form a further inverter, preferably on the at least one heat sink.

[0038] It is further proposed that exactly two rectifiers are arranged symmetrically on the at least one heat sink, each between two interconnected switching elements, with respect to a mirror plane of symmetry. This symmetrical arrangement can enable more efficient ventilation, particularly with regard to component complexity, by using only one fan, for example. Furthermore, the assembly effort can be reduced.

[0039] In particular, it is proposed that the household appliance device has two further inverters, each having at least one switching element, preferably two switching elements, wherein at least one of the at least two further inverters is arranged adjacent to the at least one first rectifier and / or to switching elements bridged together, and wherein at least one further of the at least two further inverters is arranged adjacent to the at least one second rectifier and / or to switching elements bridged together on the at least one heat sink, preferably symmetrically on the at least one heat sink with respect to a mirror plane of symmetry. This symmetrical arrangement can enable more efficient ventilation, particularly with regard to the component outlay, by using only one fan, for example. In addition, the assembly outlay can be reduced.By arranging at least two further inverters which are different from the inverters formed by the switching elements bridged together and in which the at least one first rectifier and the at least one second rectifier are arranged, an improved thermal load distribution can also be achieved.

[0040] In an advantageous embodiment and further development of the invention, the rectifiers and switching elements can be designed as through-hole (THT) components. In particular, the rectifiers and switching elements are inserted through contact holes in the household appliance and soldered to the underside of the household appliance. This represents a particularly simple assembly option. Furthermore, it may be possible to carry out simple repairs to the household appliance should any rectifiers and / or switching elements be defective.

[0041] Preferably, the contact holes in the household appliance are formed as holes or similar bores in a printed circuit board that forms part of the household appliance. To enable improved heat dissipation, in a further advantageous embodiment of the invention, it is possible for the at least one first switching element and the at least one second switching element, as well as the at least one first rectifier, to be arranged on an IMS printed circuit board.

[0042] In this context, it is particularly preferred that all rectifiers and switching elements are designed as surface-mounted (SMD) components and soldered to a top side of the household appliance. This allows the size of the household appliance to be reduced, which also improves the ventilation of the household appliance while reducing the number of components.

[0043] The invention also relates to a household appliance, in particular a hob, comprising at least one household appliance device according to the invention, wherein the above technical effects of the respective embodiments of the household appliance device can apply analogously.

[0044] The household appliance device is not intended to be limited to the application and embodiment described above. In particular, the household appliance device may have a number of individual elements, components, and units that differs from the number stated herein to fulfill a functionality described herein.

[0045] Further advantages will become apparent from the following description of the figures. The drawings illustrate exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will expediently consider the features individually and combine them into further meaningful combinations.

[0046] They show:

[0047] Fig. 1 is a highly simplified, schematic representation of a household appliance according to the invention with a household appliance device according to the invention;

[0048] Fig. 2 shows a highly simplified circuit diagram of a household appliance device according to the invention; Fig. 3 shows a highly simplified, schematic representation of the household appliance device according to the invention in a first embodiment;

[0049] Fig. 4 is a highly simplified, schematic representation of the household appliance device according to the invention in a second embodiment;

[0050] Fig. 5 is a highly simplified, schematic sectional view of the household appliance device according to the invention in a third embodiment;

[0051] Fig. 6 is a highly simplified, schematic representation of a section of the household appliance device shown in Figure 4;

[0052] Fig. 7 is a highly simplified, schematic representation of the household appliance device according to the invention in a fourth embodiment.

[0053] Figure 1 shows a highly simplified schematic representation of a household appliance 11, which in this case is configured as a hob. In the illustrated embodiment, the hob has three hotplates 20. However, the hob is not limited to this number of hotplates 20. Rather, fewer than three hotplates 20 may also be present, for example, one hotplate 20 or two hotplates 20.

[0054] It is also possible that there are more than three 20 hotplates, for example 4, 5 or 6 or even more 20 hotplates.

[0055] In the exemplary embodiment according to Figure 1, the household appliance 11a is designed as an induction hob. The household appliance 11a comprises at least one household appliance device 10a, 10b, 10c, 10d according to the invention (dashed line).

[0056] The household appliance device 10a, 10b, 10c, 10d according to the invention is preferably designed as a populated printed circuit board or similarly configured board with electronic components such as rectifiers and inverters, or has at least one populated printed circuit board or similarly configured board with at least one or more rectifiers and one or more inverters. The inverter(s) each have switching elements or are formed by them. This is evident from the dashed representation. Figure 2 shows a highly simplified circuit diagram of a household appliance device. This can be used as a template for a populated printed circuit board that can be part of the household appliance device.

[0057] Figure 2 shows a first rectifier 12a. Furthermore, a first switching element 13a and a second switching element 14a are shown. Furthermore, a first diode 39a and a second diode 40 are present. Also shown in the circuit diagram according to Figure 2 are an inductor 44a and three capacitors 41a, 42a, 43a. The switching elements 13a, 14a are arranged in a half-bridge topology and form an inverter.

[0058] Figure 3 shows a highly simplified, schematic representation of a first embodiment of a household appliance 10a. The household appliance 10a includes a first rectifier 12a. Furthermore, the household appliance 10a includes a first switching element 13a and a second switching element 14a, which are bridged together to form a first inverter 15a. The household appliance 10a further includes a heat sink 16a.

[0059] In the illustrated embodiment according to Figure 3, the first rectifier 12a, the first switching element 13a, and the second switching element 14a are arranged on the heat sink 16a. An advantage of an arrangement on the heat sink can be, in particular, improved heat dissipation of the electronic components, ie, the first rectifier 12a, the first switching element 13a, and the second switching element 14a.

[0060] In the example of a possible embodiment of the invention shown in Figure 3, the household appliance device 10a has a second inverter 17a which has a third switching element 18a and a fourth switching element 19a and which is arranged adjacent to the electronic second switching element 14a and on the heat sink 16a.

[0061] Furthermore, the household appliance 10a shown in Figure 3 has a third inverter 21a, which has a fifth switching element 22a and a sixth switching element 23a and is arranged on the heat sink 16a. Figure 3 also shows that the first rectifier 12a, the first switching element 13a, and the second switching element 14a are arranged between the second inverter 17a and a third inverter 21a.

[0062] The embodiment according to Figure 3 thus shows a first rectifier 12a and a total of three inverters, namely a first inverter 15a, a second inverter 17a, and a third inverter 21a. The first inverter 15a differs from the second inverter 17a and the third inverter 21a in that the first rectifier 12a is arranged between their switching elements, the first switching element 13a and the second switching element 14a.

[0063] In this respect, the present disclosure should not be considered restrictive or definitive with regard to the numbering of the electronic components "switching elements," "inverter," and "rectifier." Rather, the numbering of the electronic components is intended to contribute to a better understanding of the respective configuration of the household appliance. For example, the third inverter 21 can also be referred to as the second inverter 17, provided that a person skilled in the art recognizes that these are structurally identical components.

[0064] Furthermore, the embodiment according to Figure 3 should in no way be interpreted in such a restrictive manner that exactly three inverters 15a, 17a, 21a must be present.

[0065] Within the scope of the present disclosure, the person skilled in the art will explicitly also consider an embodiment with fewer than three inverters. The person skilled in the art will, in particular, always consider the inventive concept that an inverter is formed by at least two switching elements bridged together, and that one or more rectifiers is / are arranged between the bridged switching elements. Thus, the person skilled in the art considers, in particular, those inverters whose bridged switching elements do not have a rectifier arranged between them to be optional, and whose number can be expediently reduced or increased.

[0066] In particular, the embodiment shown in Figure 3 can be taken as a household appliance device 10a with exactly two switching elements 13a, 14a, which are arranged in a half-bridge topology and which form an inverter, which can also be referred to as a first inverter 15a.

[0067] The first rectifier 12a is arranged between the first switching element 13a and the second switching element 14a. This results in a symmetrical arrangement of these switching elements 13a, 14a with respect to the first rectifier 12a. Reference is also made to Figure 7.

[0068] In a manner not shown in detail, the household appliance 11a can have two or more household appliance devices according to the invention, which are preferably designed identically.

[0069] In a particularly advantageous embodiment of the invention, it can be provided that the household appliance 11a has two household appliance devices according to the invention exactly as shown in Figure 3, which are jointly ventilated by a fan (not shown).

[0070] In addition, the invention can provide in an alternative embodiment that a duplicated arrangement according to Figure 3 is also possible on a common household appliance device, as shown in Figure 4.

[0071] Figure 4 shows a further exemplary embodiment of the invention. The following descriptions are essentially limited to the differences between the previously described exemplary embodiment and the household appliance 10a according to Figure 3. Regarding identical components, features, and functions, reference is made to the description of the exemplary embodiment in Figure 3. Regarding identically designated components, particularly with regard to components with identical reference numerals, reference can also be made to the drawings and / or the description of Figures 1 to 3.

[0072] The household appliance device 10b shown in Figure 4 has a first rectifier 12b and a second rectifier 24b. Thus, the household appliance device 10b has exactly two rectifiers 12b, 24b, each of which is arranged symmetrically on a heat sink 16b between two interconnected switching elements 13b, 14b, 25b, 26b with respect to a mirror symmetry plane 34b. The first switching element 13b and the second switching element 14b are bridged together and form a first inverter 15b. The switching elements 25b, 26b are bridged together and also form an inverter. In the present case, this inverter is referred to as a fourth inverter 27b. This fourth inverter 27b can also be referred to as a further inverter that is present in addition to the first inverter 15b.

[0073] Furthermore, further inverters 17b, 21b, 28b, 29b are present, each having two switching elements 18b, 19b, 22b, 23b, 30b, 31b, 32b, 33b. The further inverter 17b is arranged adjacent to the one second switching element 14b, which is arranged adjacent to the one first rectifier 12b. The further inverter 21b is arranged adjacent to the one first switching element 13b, which is arranged adjacent to the one first rectifier 12b. The further inverter 28b is arranged adjacent to the switching element 25b, which is arranged adjacent to the second rectifier 24b. The further inverter 29b is arranged adjacent to the switching element 26b, which is arranged adjacent to the second rectifier 24.

[0074] Overall, the embodiment of a household appliance 10b according to the invention shown in Figure 3 has six inverters 15b, 17b, 21b, 27b, 28b, 29b and two rectifiers 12b, 24b.

[0075] In the embodiment shown in Figure 4, the rectifiers 12b, 24b and the inverters 15b, 17b, 21b, 27b, 28b, 29b are arranged on the heat sink 16b.

[0076] The arrangement of the first rectifier 12b and the second rectifier 24b as well as the inverters 15b, 17b, 21b, 27b, 28b, 29b on the heat sink 16b is symmetrical with respect to a mirror symmetry plane 34b.

[0077] In a further embodiment, the household appliance 10c has a layered structure with a lower layer 35c and an upper layer 36c (see Figure 5). The upper layer 36c is designed as an IMS circuit board. The lower layer 35c is designed as an FR4 circuit board. The first rectifier 12c and the first switching element 13c as well as the second switching element 14c are arranged on the upper layer 36c. Contact is made between the lower layer 35c and the upper layer 36c by contact means 38c. In the exemplary embodiment according to Figures 5 and 6, semiconductor components such as inverters and rectifiers or switching elements of the inverter(s) are mounted in an encapsulated surface mount manner on an IMS circuit board.This makes it possible, on the one hand, to provide a particularly space-saving and compact household appliance device 10c, which is also characterized by improved heat dissipation properties.

[0078] A heat sink 16c is provided for heat dissipation.

[0079] Optionally, a further layer 37c can be provided, arranged above the upper layer 36c. Thus, the optional further layer 37c can be arranged between the upper layer 36c and the heat sink 16c. This further layer 37c can be referred to as a so-called "gap filler" and can comprise or consist of a thermally conductive material. The use of this further layer 37c can achieve improved heat dissipation.

[0080] According to Figure 6, the household appliance device 10c has a first rectifier 12c. Furthermore, the household appliance device 10c has four inverters 15c, 17c, 21c, and 27c.

[0081] The first rectifier 12c is arranged between two inverters 15c, 21c, each of which has two interconnected switching elements 13c, 14c, 22c, 23c. The arrangement of the first rectifier 12c can also be described as being enclosed by the two inverters 15c, 21c.

[0082] From the embodiment according to Figures 5 and 6 it can be seen that the first rectifier 12c and the inverters 15c, 17c, 21c and 27c are not arranged on the heat sink 16c.

[0083] In the exemplary embodiment according to Figure 7, a household appliance 10d is shown, which has a first rectifier 12d, a first switching element 13d, and a second switching element 14d. The one first switching element 13d and the one second switching element 14d are bridged together and form a first inverter 15d. The one first rectifier 12d, the one first switching element 13d, and the one second switching element 14d are arranged on the heat sink 16d. In the exemplary embodiment according to Figure 7, there are exactly two switching elements 13d, 14d, which are arranged in a half-bridge topology and form the one first inverter 15d.

[0084] Reference symbol

[0085] 10 household appliance device

[0086] 11 household appliance

[0087] 12 first rectifier

[0088] 13 first switching element

[0089] 14 second switching element

[0090] 15 first inverter

[0091] 16 heat sinks

[0092] 17 second inverter

[0093] 18 third switching element

[0094] 19 fourth switching element

[0095] 20 hotplate

[0096] 21 third inverter

[0097] 22 fifth switching element

[0098] 23 sixth switching element

[0099] 24 second rectifier

[0100] 25 seventh switching element

[0101] 26 eighth switching element

[0102] 27 fourth inverter

[0103] 28 fifth inverter

[0104] 29 sixth inverter

[0105] 30 ninth switching element

[0106] 31 tenth switching element

[0107] 32 eleventh switching element

[0108] 33 twelfth switching element

[0109] 34 mirror symmetry plane

[0110] 35 lower layer

[0111] 36 upper layer

[0112] 37 additional layers

[0113] 38 contact agents

[0114] 39 first diode

[0115] 40 second diode capacitor capacitor capacitor inductor

Claims

Claims 1. Household appliance device (10a; 10b; 10c; 10d), in particular a hob device, comprising at least one first rectifier (12a; 12b; 12c; 12d), at least one first switching element (13a; 13b; 13c; 13d) and at least one second switching element (14a; 14b; 14c; 14d), which are bridged together and form a first inverter (15a; 15b; 15c; 15d), and at least one heat sink (16a; 16b; 16c; 16d), to which the at least one first rectifier (12a; 12b; 12c; 12d), the at least one first switching element (13a; 13b; 13c; 13d) and the at least one second switching element (14a; 14b; 14c; 14d) are preferably arranged, characterized in that the at least one first rectifier (12a; 12b; 12c; 12d) is arranged between the at least one first switching element (13a; 13b; 13c; 13d) and the at least one second switching element (14a; 14b; 14c; 14d).

2. Household appliance device (10d) according to claim 1, characterized in that exactly two switching elements (13d, 14d) are present, which are arranged in a half-bridge topology and form the one first inverter (15d).

3. Household appliance device (10a; 10b; 10c) according to claim 1, characterized by at least one second inverter (17a; 17b; 17c) which has at least one third switching element (18a; 18b; 18c) and which is arranged adjacent to the at least one first switching element (13a; 13b; 13c) or the at least one second switching element (14a; 14b; 14c) and preferably on the at least one heat sink (16a; 16b; 16c).

4. Household appliance device (10a; 10b; 10c) according to claim 3, characterized by at least one third inverter (21a; 21b; 21c) which has at least one fifth switching element (22a; 22b; 22c) and at least one sixth switching element (23a; 23b; 23c) and is preferably arranged on the at least one heat sink (16a; 16b; 16c). REVISED SHEET (RULE 91) ISA / EP Household appliance device (10a; 10b) according to claims 3 and 4, characterized in that the at least one first rectifier (12a; 12b), the at least one first switching element (13a; 13b), and the at least one second switching element (14a; 14b) are arranged between the at least one second inverter (17a; 17b) and the at least one third inverter (21a; 21b). Household appliance device (10a; 10d) according to one of the preceding claims, characterized in that an odd number of inverters (15a; 15d, 17a; 21a) is present, which are preferably arranged on the at least one heat sink (16a; 16d). Household appliance device (10b; 10c) according to one of claims 1 to 5, characterized in that an even number of inverters (15b; 15c; 17b; 17c, 21b; 21c, 27b; 27c, 28b, 29b) are present, which are preferably arranged on the at least one heat sink (16b; 16c).Household appliance (10b) according to one of the preceding claims, characterized by at least one second rectifier (24b), which is arranged between two further switching elements (25b, 26b) that are bridged together and form a further inverter (27b), preferably on the at least one heat sink (16b). Household appliance (10b) at least according to claim 8, characterized in that exactly two rectifiers (12b, 24b) are each arranged symmetrically on the at least one heat sink (16b) with respect to a mirror symmetry plane (34b) between two switching elements (13b, 14b, 25b, 26b) that are bridged together. REVISED SHEET (RULE 91) ISA / EP 10. Household appliance device (10b) according to claim 8, characterized by at least two further inverters (17b, 21b, 28b, 29b), each having at least one switching element (18b, 19b, 22b, 23b, 30b, 31b, 32b, 33b), wherein at least one of the at least two further inverters (17b, 21b, 28b, 29b) is arranged adjacent to the at least one first rectifier (12b) and / or to mutually bridged switching elements (14b, 15b), and wherein at least one further of the at least two further inverters (17b, 21b, 28b, 29b) is arranged adjacent to the at least one second rectifier (24b) and / or to mutually bridged switching elements (25b, 26b) on the at least one heat sink (16b), preferably with respect to a mirror symmetry plane (34b). are arranged symmetrically on the at least one heat sink (16b).

11. Household appliance device (10c) according to one of the preceding claims, characterized by a further inverter (21c), wherein the at least one first rectifier (12c) is arranged between the one first inverter (15c) and the one further inverter (21c) and is preferably enclosed by the first inverter (15c) and the one further inverter (21c).

12. Household appliance device (10c) according to one of the preceding claims, characterized by a layered structure with at least one lower layer (35c) and an upper layer (36c), wherein the upper layer (36c) is designed as an IMS circuit board on which the at least one first rectifier (12c) and the at least one first switching element (13c) and the at least one second switching element (14c) are arranged.

13. Household appliance (11a), in particular a hob, comprising at least one household appliance device (10a; 10b; 10c; 10d) according to one of the preceding claims. REVISED SHEET (RULE 91) ISA / EP

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