EP2679913A2 - Domestic appliance - Google Patents

Abstract

The device (10a) has a ventilator unit (30a) partially surrounded by a cooling body unit (20a). The cooling body unit is provided with two cooling bodies (22a, 24a). The ventilator unit is provided with a radial ventilator. The ventilator unit and the cooling body unit form cooling channels of different lengths. The ventilator unit and the cooling body unit are arranged in a radial symmetrical manner. The cooling body unit is directly connected with power components (46a) e.g. rectifier bridges and IGBTs. Channel units (50a, 52a) guide fluid emerging from the cooling body unit.

Description

The invention relates to a household appliance device according to the preamble of claim 1.

Hobs are known which have a heat sink unit and a fan unit. The fan unit is locally separated from the heat sink unit, or laterally arranged on this.

The object of the invention is in particular to provide a generic device with improved cooling properties. The object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.

The invention is based on a domestic appliance device, in particular a hob device, with at least one heat sink unit and at least one fan unit.

It is proposed that the fan unit is at least partially surrounded by the heat sink unit. A "fan unit" is to be understood in particular as a unit which has at least one fan. In particular, the fans of a fan unit are provided to generate at least one common fluid flow on the input side and / or output side. A "common fluid flow" of at least two fans should in particular be understood to mean a fluid flow that is generated in each case partially, in particular at least 10%, preferably at least 40%, advantageously at most 70%, of each of the at least two fans. A "fan" is to be understood in particular as a component which is intended to generate a fluid flow, in particular an air flow. Advantageously, the fan has at least one mechanical, in particular rotary, drive, which is intended to drive a transport element, in particular a paddle wheel, which is intended to cause a fluid flow by movement. In particular, a fan has a diameter between 2 cm and 20 cm, advantageous between 5 and 15 cm. In particular, the fan is provided at a speed between 0 and 3000 min ^-1 , in particular between 0 and 2500 min ^-1 , preferably between 0 and 2200 min ^-1 , to be operated. In particular, the fan is intended to be operated temperature controlled at a controlled speed. In particular, the fan is provided for a volume flow of at least 0.3 m ³ / min, in particular of at least 0.5 m ³ / min, advantageously of at least 0.7 m ³ / min, and / or a mass flow of at least 0.3 kg / min, in particular at least 0.5 kg / min, advantageously at least 0.7 kg / min to produce. Alternatively, purely electrical transport elements, in particular ion current generators, are conceivable. A "heat sink unit" is to be understood in particular as meaning a unit which has at least one heat sink. In particular, the heat sinks of a heat sink unit are intended to be flowed through by air streams which are generated by a single fan unit. Advantageously, the heat sinks of a heat sink unit are arranged in close proximity to each other and in particular have distances from one another which are smaller than 2 cm, in particular smaller than 1 cm, advantageously smaller than 0.5 cm, preferably smaller than 0.2 cm. Advantageously, there is at least one connecting line for two heat sinks of a heat sink unit, which connects the heat sinks to each other and extends at most 3 cm, in particular at most 1 cm, advantageously at most 0.5 cm outside cooling bodies of the heat sink unit. A "heat sink" should in particular be understood to mean a body which is intended to absorb heat from at least one power component and deliver it to a fluid. In particular, the heat sink of at least partially, in particular at least 70%, advantageously 80%, preferably at least 95%, of at least one material is formed, which has a thermal conductivity of at least 50 W · m ^-1 · K ^-1 , in particular at least 100 W. m ^-1 · K ^-1, preferably at least 150 W · m ^-1 · K ^-1, preferably W · m ^-1 · K ^-1 having at least 200. In particular, the heat sink is at least partially formed by aluminum and / or copper. In particular, the heat sink has at least one cooling rib, in particular a multiplicity of cooling ribs. Advantageously, at least 30%, advantageously at least 50%, preferably at least 60% of the heat sink are formed by cooling fins. A "power component" should be understood in particular to mean a component which, in at least one operating mode, achieves a power loss of at least 5 W, in particular at least 10 W, advantageously at least 15 W. Preferably, a power device is different from a pure resistive Resistance. In particular, the power component is designed as a semiconductor component, in particular as a switching and / or rectifying element. In particular, the power component is intended to generate a high-frequency current, in particular with a frequency between 20 kHz and 150 kHz, which is in particular intended to operate an induction heating element. A "cooling rib" should be understood to mean, in particular, a formation on a basic shape of a cooling body, which is intended to enlarge a surface of a basic shape of the cooling body. Preferably, cooling fins are formed as plate-like body. Preferably, the cooling fins are materially connected to the basic shape of the heat sink, preferably they are formed from one piece with the basic shape. In particular, cooling fins of a heat sink have a thickness between 0.5 mm and 5 mm, advantageously between 1 mm and 3.5 mm, and preferably between 1.5 mm and 2.5 mm. In particular, cooling fins of a heat sink at a distance from one another, which is between 0.5 mm and 5 mm, advantageously between 1 mm and 3.5 mm and preferably between 1.5 mm and 2.5 mm. In particular, a heat sink differs from a housing component. A "housing component" is to be understood in particular as a component which is intended to form an outer boundary of the household appliance device or of a domestic appliance having the domestic appliance device. In particular, a housing component is provided, advantageously together with other housing components, to enclose at least a majority of the components of the household appliance device. In particular, a heat sink is mechanically connected directly to an electronic board. The fact that the fan unit is at least partially "surrounded" by the heat sink unit should in particular be understood to mean that at least one connecting straight exists which connects surface points of heat sinks, in particular of a single heat sink, and which intersects at least one, in particular each fan of the fan unit , In particular, the fan unit is at least 20%, advantageously at least 40%, advantageously at least 60%, preferably at least 80%, within smallest imaginary convex hulls, each comprising at least one, in particular exactly one, the heat sink. In particular, the heat sink unit and the fan unit are provided to dissipate an amount of heat of at least 30 W, in particular of at least 60 W, advantageously of at least 120 W, preferably of at least 150 W. By "provided" is to be understood in particular specially shaped, designed and / or equipped. In particular, effective cooling can be achieved. In particular, a reduced Pressure difference and thus a reduced friction and / or a reduced cooling effect loss can be achieved. In particular, an efficient channeling of a cooling fluid flow can be achieved, wherein advantageously additional guide channels can be dispensed with. In particular, a compact design can be achieved.

Advantageously, the heat sink unit has at least two heat sinks. In particular, increased flexibility and / or simple assembly can be achieved, in particular if the heat sink unit is intended to cool power components of different electronic boards. Alternatively, it is conceivable that the heat sink unit is formed by exactly one heat sink, whereby in particular improved cooling properties, in particular a lower average temperature can be achieved because a heat surplus can be distributed over the entire heat sink unit.

Furthermore, it is proposed that the fan unit has at least one, in particular exactly one, radial fan. A "radial fan" is to be understood in particular as meaning an electromechanical fan with at least one blade wheel, which is intended to suck in a fluid from at least one direction which is oriented at least substantially parallel to an axis of rotation of the fan wheel and this in at least one direction, which is perpendicular to an axis which is oriented at least substantially parallel to the axis of rotation to blow out. By the fact that two directions are "essentially parallel", it should be understood, in particular, that the vectors defining the directions span an angle of at most 35 °, in particular at most 10 °, advantageously at most 5 °. In particular, an efficient cooling and / or an efficient construction can be achieved. Furthermore, embodiments are conceivable which have at least one axial fan which is provided to suck and blow off a fluid along a direction which is at least substantially parallel to the rotational direction of a blade wheel of the axial fan, deflections of the fluid being achieved in particular by formations of the heat sink unit can.

It is also proposed that the fan unit and the heat sink unit form at least two, in particular at least four, advantageously at least ten, different cooling channels. A "cooling channel" is to be understood in particular as meaning a structure which is intended to guide a fluid at least substantially along a main direction. In particular, a cooling channel is formed by a plurality of sub-channels, which are separated by cooling ribs. By "different" cooling channels should be understood in particular cooling channels having different main directions. By "different main directions" should be understood in particular directions that pairs each have an angle of at least 10 °, in particular at least 30 °, advantageously at least 60 °, preferably at least 100 °. In particular, efficient cooling can be achieved. In particular, an increased number of cooling channels, a reduced differential pressure and thus a reduced cooling effect loss can be achieved by friction effects.

Furthermore, it is proposed that the cooling channels have different lengths. In particular, the fan unit is arranged decentralized to the heat sink unit. In particular, efficient cooling can be achieved, in particular in a case where one or more of a plurality of power components cooled by a heat sink causes a higher average heat output.

It is also proposed that the fan unit and the heat sink unit are arranged radially symmetrically. In particular, at least cooling channels have a radial symmetrical arrangement. In particular, a simple production and / or an efficient cooling can be achieved.

Advantageously, it is proposed that the heat sink unit is intended to be connected directly to power components. In particular, at least one heat sink of the heat sink unit has fastening means, in particular screw holes, which are provided for fastening the power components. In particular, the power components have at least one heat conductor with at least one fastening means, which is provided to fasten a fastening of the power component to a heat sink. Alternatively and / or additionally, a cohesive connection of the power component to the heat sink, in particular via an adhesive process and / or use of thermal paste between the power component and the heat sink unit conceivable. It can in particular a component and / or space-saving Design can be achieved. In particular, can be dispensed with an application of heat transfer agents, in particular heat pipes.

Furthermore, it is proposed that the domestic appliance device has at least one channel unit which is provided to conduct fluid emerging from the heat sink unit. In particular, the channel unit is intended to divert at least a large part, in particular at least 50%, advantageously at least 70%, preferably at least 90%, of fluid emerging from the heat sink unit from a housing unit of the home appliance device. In particular, the housing unit has at least one ventilation opening, to which the channel unit leads. In particular, the channel unit has inlet openings and / or outlet openings in order to generate additional cooling flows within the housing unit. In particular, an efficient heat dissipation can be achieved. In particular, it can be achieved that heated by the heat sink unit fluid is fed back into an interior of the housing unit. In particular, a low average temperature within the housing unit can be achieved.

Furthermore, it is proposed that the fan unit has at least one suction opening facing into an interior. An "interior" is to be understood in particular as meaning a space enclosed by a housing unit of the household appliance device. In particular, a dissipation of heat generated by electronic components other than those connected to the heat sink unit can be achieved. In particular, a low average temperature within the housing unit can be achieved.

Advantageously, the home appliance device is used in household appliances, such as cooking appliances, in particular Indktionsgargeräten, advantageous induction hobs, which have components that generate a high heat loss.

Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. Of the A person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Fig. 1

eine erste erfindungsgemäße Hausgerätevorrichtung,

Fig. 2

eine perspektivische Ansicht einer Kühlkörper- einer Lüfter- und einer Elektronikeinheit der Hausgerätevorrichtung aus Figur 1 von unten,

Fig. 3

eine Schnittansicht der Hausgerätevorrichtung aus Figur 1,

Fig. 4

die Kühlkörpereinheit der Hausgerätevorrichtung aus Figur 1,

Fig. 5

eine erste alternative Kühlkörpereinheit aus einem einzelnen Kühlkörper,

Fig. 6

eine zweite alternative Kühlkörpereinheit und Lüftereinheit mit vier Kühlkanälen,

Fig. 7

eine dritte alternative Kühlkörpereinheit und Lüftereinheit mit vier Kühlkanälen,

Fig. 8

eine vierte alternative Kühlkörpereinheit und Lüftereinheit mit vier Kühlkanälen und vertikalen Kühlrippen in einer Ansicht von schräg oben,

Fig. 9

die vierte alternative Kühlkörpereinheit und Lüftereinheit aus Figur 8 in einer Ansicht von schräg unten,

Fig. 10

eine fünfte alternative Kühlkörpereinheit und Lüftereinheit mit spiralförmigen Kühlrippen in einer Ansicht von schräg oben,

Fig. 11

die fünfte alternative Kühlkörpereinheit und Lüftereinheit aus Figur 10 in einer Ansicht von schräg unten,

Fig. 12

eine sechste alternative Kühlkörpereinheit mit halbseitig umschlossener Lüftereinheit,

Fig. 13

eine siebte alternative Kühlkörpereinheit mit halbseitig umschlossener Lüftereinheit und unterschiedlich langen Kühlkanälen,

Fig. 14

eine achte alternative Kühlkörpereinheit und Lüftereinheit mit unterschiedlich langen Kühlkanälen und

Fig. 15

eine neunte alternative Kühlkörpereinheit und Lüftereinheit mit Ansaugöffnungen in der Kühlkörperoberseite.

Show it:

Fig. 1

a first domestic appliance device according to the invention,

Fig. 2

a perspective view of a Kühlkörper- a fan and an electronic unit of the home appliance device FIG. 1 from underneath,

Fig. 3

a sectional view of the home appliance device FIG. 1 .

Fig. 4

the heat sink unit of the home appliance device FIG. 1 .

Fig. 5

a first alternative heat sink unit from a single heat sink,

Fig. 6

a second alternative heat sink unit and fan unit with four cooling channels,

Fig. 7

a third alternative heat sink unit and fan unit with four cooling channels,

Fig. 8

a fourth alternative heat sink unit and fan unit with four cooling channels and vertical cooling fins in an oblique view from above,

Fig. 9

the fourth alternative heat sink unit and fan unit FIG. 8 in a view from below,

Fig. 10

a fifth alternative heat sink unit and fan unit with spiral cooling fins in a view obliquely from above,

Fig. 11

the fifth alternative heat sink unit and fan unit off FIG. 10 in a view from below,

Fig. 12

a sixth alternative heat sink unit with half-enclosed fan unit,

Fig. 13

a seventh alternative heat sink unit with half-enclosed fan unit and cooling channels of different lengths,

Fig. 14

an eighth alternative heat sink unit and fan unit with different length cooling channels and

Fig. 15

a ninth alternative heat sink unit and fan unit with suction holes in the heat sink top.

FIG. 1 shows a designed as an induction hob device household appliance device 10a of a designed as an induction hob home appliance. The home appliance device 10a has a heat sink unit 20a and a fan unit 30a. Furthermore, the home appliance device 10a has a housing unit 12a and an electronics unit 40a. The housing unit 12a is formed by a housing member 13a formed as a housing shell and a cooking plate (not shown) which forms, together with the housing member 13a an inner space 14a, in which the electronic unit 40a, the heat sink unit 20a and the fan unit 30a are arranged. The electronics unit 40a has two electronic boards 42a, 44a, which are intended to generate high-frequency alternating current for induction heating elements (not shown). Each of the electronic boards 42a, 44a has five power components 46a, one of which is designed as a rectifier bridge and four as an IGBT. The heat sink unit 20a has two heat sinks 22a, 24a. The heat sinks 22a, 24a are formed of aluminum. The heat sinks 22a, 24a are each mechanically connected via plug connections 43a, 45a to one of the electronic boards 42a, 44a ( FIG. 2 ). The heat sinks 22a, 24a each have five cooling fins, which are arranged horizontally to a basic shape with respect to a standard operating orientation of the household appliance device 10a. The basic shapes each form slanted receiving areas 23a, 25a which are provided for thermal contacting of the power components 46a. Due to the oblique orientation of the receiving areas 23a, 25a, a simple contacting of the power components 46a can be achieved with a simultaneously low overall height. The cooling fins have a thickness of 2 mm. The cooling fins are 2 mm apart. The heat sinks 22a, 24a are arranged at a distance of 3 mm from one another. The heat sink unit 20a is intended to be connected directly to the power components 46a. The heat sinks 22a, 24a have connecting means 48a designed as screw holes (FIG. FIG. 4 ). The connection means 48a are arranged on the receiving areas 23a, 25a of the heat sinks 22a, 24a.

The fan unit 30a has a fan 32a designed as a radial fan. The fan unit 30a is surrounded by 90% of the heat sink unit 20a. The heat sinks 22a, 24a each have a semicircular recess in the region of the cooling fins. The semicircular recesses of the two heat sinks 22a, 24a complement each other to form a circular recess 26a. The circular recess 26a is centered in the heat sink unit 20a arranged. The circular recess 26a is open at the top and bottom. The fan unit 30a is disposed in the circular recess 26a. The housing component 13a has suction openings 15a ( FIG. 3 ). The fan unit 30a is disposed directly above the suction ports 15a. Furthermore, the fan unit 30a has a fan cover 34a, which is arranged on an upper side of the fan 32a, on one side opposite the housing component 13a, and partially overlaps with the heat sinks 22a, 24a. The fan cover 34a has suction ports 36a facing into the inner space 14a. The fan unit 30a and the heat sink unit 20a form two different cooling channels 60a, 62a (FIG. FIG. 3 ). The fan unit 30a and the heat sink unit 20a are disposed in radial symmetry with a twofold symmetry with respect to a rotation axis 38a of the fan 32a. The cooling channels 60a, 62a are opposite to 180 °.

The home appliance device 10a has two channel units 50a, 52a, which are intended to guide air emerging from the heat sink unit 20a. The housing component 13a has ventilation openings 51a, 53a. The ventilation openings 51 a, 53 a are arranged in edge regions of the housing component 13 a. The channel units 50a, 52a are provided to lead out of the heat sink unit 20a exiting air to the ventilation openings 51 a, 53 a and thus to lead out of the interior 14 a out. The fan unit 30a has a height that corresponds to a height of the heat sink unit. An overall height of the heat sink unit 20a is less than 20% of a width of the heat sink unit 20a.

Furthermore, it is conceivable that only one or no channel unit 50a, 52a is provided. It is likewise conceivable for the housing unit 12a to have additional ventilation openings leading to the interior 14a and / or the ventilation openings 51a, 53a to be opened and / or closed depending on the installation situation of the household appliance, in particular as a function of predetermined ventilation slots in built-in furniture.

In the FIGS. 5 to 15 nine other embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, with respect to the same components, features and functions on the description of the other embodiments, in particular the FIGS. 1 to 4 , can be referenced. To distinguish the embodiments, the letter a in the reference numerals of Embodiment in the FIGS. 1 to 4 by the letters b to k in the reference numerals of the embodiments of the FIGS. 5 to 15 replaced. With regard to identically designated components, in particular with regard to components with the same reference numerals, can in principle also to the drawings and / or the description of the other embodiments, in particular the FIGS. 1 to 4 , to get expelled.

FIG. 5 shows a heat sink unit 20b with a single heat sink 22b. The cooling body 22b has horizontally oriented cooling ribs which extend from a first to a second receiving region 23b, 25b. The heat sink 22b has centrally a circular recess 26b, which is intended to receive a fan unit.

FIG. 6 shows a heat sink unit 20c with a single heat sink 22c. The heat sink 22c is composed of a plurality of partial bodies welded together. The heat sink 22c forms a cross. Side surfaces of the heat sink 22c except for intersecting ends are beveled and serve as receiving areas 23c, 25c, 27c, 29c. The cooling body 22c has centrally a circular recess in which a fan unit 30c is arranged. The heat sink unit 20c and the fan unit 30c are of radial symmetry and have a fourfold symmetry. The fan unit has no suction opening, which faces into an interior. The heat sink unit 20c and the fan unit 30c form four different cooling channels 60c, 62c, 64c, 66c. The cooling channels 60c, 62c, 64c, 66c are oriented at right angles to each other. A housing unit adapted to this embodiment preferably has four ventilation openings. Alternatively, it is conceivable that, for example, two of the cooling channels lead back into the interior in order to generate air circulation there and two of the cooling channels are guided by means of channel units to ventilation openings.

Alternatively, embodiments are conceivable in which a corresponding heat sink unit is formed from, for example, four heat sinks arranged next to one another, whereby production costs, such as those incurred by welding processes, can be avoided.

FIG. 7 shows a heat sink unit 20d with a single heat sink 22d. In this case, the heat sink 22d is essentially formed from a square basic shape with chamfered corners. The chamfered corners in this case form outlet openings of the heat sink 22d and are the starting point of cooling fins, which lead to a center of the heat sink 22d. The cooling body 22d has centrally a circular recess in which a fan unit 30d is arranged. The heat sink unit 20d and the fan unit 30d are of radial symmetry and have a fourfold symmetry. The heat sink unit 20d and the fan unit 30d form four different cooling channels 60d, 62d, 64d, 66d. The cooling channels 60d, 62d, 64d, 66d are arranged at right angles to each other.

FIGS. 8 and 9 show a heat sink unit 20e with a single, manufactured in one piece, or formed in a casting process, the heat sink 22e. The heat sink 22e has vertically oriented cooling fins that form downwardly open cooling paths. In one operating state, a housing unit is provided to provide closed cooling paths. The heat sink unit 20e has centrally a circular recess 26e, in which a fan unit 30e is arranged. The circular recess 26e is open only downwards. A fan cover 34e is integrally formed with, or formed by, the heat sink 22e.

FIGS. 10 and 11 show a heat sink unit 20f with heat sink 22f with a circular base. The cooling body 22f has a circular recess 26f in the middle, in which a fan unit 30f is arranged. The heat sink 22 f has vertically oriented cooling fins that extend spirally from the circular recess 26 f to an edge of the heat sink 22 f. The heat sink unit 20f and the fan unit 30f are of radial symmetry and have a seventy-fold symmetry. The heat sink unit 20f and the fan unit 30f form a plurality of different cooling channels. An upper surface of the heat sink 22f forms a horizontal accommodating portion 23f on which power components 46f are disposed.

FIG. 12 shows a heat sink unit 20g with a single heat sink 22g. The heat sink 22g has cooling fins arranged horizontally. Cooling paths formed by the cooling fins are open on the side. The cooling body 22g has, starting from an edge of the cooling body 22g, centrally in an area in which the cooling ribs are arranged, a semicircular recess in which a fan unit 30g is arranged. The fan unit 30g is surrounded by 50% of the heat sink unit 20g. The fan unit 30g has a fan cover 34g which is an upper surface of a fan of the fan unit 30g, a lateral portion of the fan which is not of the fan Heat sink unit 20 g is surrounded, and covers the side open cooling paths. The heat sink unit 20g and the fan unit 30g are of radial symmetry and have a twofold symmetry. The heat sink unit 20g and the fan unit 30g form two different cooling channels 60g, 62g.

As in one embodiment according to FIG. 12 Fan-side pressure differences between the different cooling channels 60g, 62g may arise, according to an embodiment FIG. 13 which shows a heat sink unit 20h with a heat sink 22h and a fan unit 30h, wherein the heat sink unit 20h and the fan unit 30h form cooling channels 60h, 62h with different lengths. A semicircular recess in the heat sink 22h is disposed apart from a center of the area with cooling fins.

FIG. 14 shows a heat sink unit 20i with two heat sinks 22i, 24i. The heat sinks 22i, 24i each have a semicircular recess, which complement each other to form a circular recess. The circular recess is arranged along an imaginary mirror axis between the heat sinks 22i, 24i laterally offset decentralized in the heat sink unit 20i. In the circular recess, a fan unit 30i is arranged. The heat sink unit 20i and the fan unit 30i form two different cooling channels 60i, 62i of different lengths in order to compensate for a different thermal loading of the respective areas of the heat sinks 22i, 24i adjacent to the cooling channels 60i, 62i.

FIG. 15 shows a heat sink unit 20k with two heat sinks 22k, 24k. The heat sinks 22k, 24k each have a semi-circular recess which is open only downwards and which complement each other to form a circular recess. In the circular recess, a fan unit 30k is arranged. A fan cover 34k of the fan unit 30k, in which suction ports 36k are arranged facing an interior, is formed by the heat sink unit 20k. The suction openings 36k facing into the interior are thus arranged in the heat sinks 22k, 24k. reference numeral 10 Home appliance device 51 vent 12 housing unit 52 channel unit 13 housing component 53 vent 14 inner space 60 cooling channel 15 suction 62 cooling channel 20 Heatsink unit 64 cooling channel 22 heatsink 66 cooling channel 23 reception area 24 heatsink 25 reception area 26 recess 27 reception area 29 reception area 30 fan unit 32 Fan 34 fan cover 36 suction 38 axis of rotation 40 electronics unit 42 electronic board 43 connector 44 electronic board 45 connector 46 power device 48 connecting means 50 channel unit

Claims (10)

Domestic appliance device, in particular hob device, with at least one heat sink unit (20) and at least one fan unit (30), characterized in that the fan unit (30) is at least partially surrounded by the heat sink unit (20). Home appliance device according to claim 1, characterized in that the heat sink unit (20) has at least two heat sinks (22, 24). Home appliance device according to one of the preceding claims, characterized in that the fan unit (30) has at least one radial fan. Domestic appliance device according to one of the preceding claims, characterized in that the fan unit (30) and the heat sink unit (20) form at least two different cooling channels (60, 62, 64, 66). Home appliance device according to claim 4, characterized in that the cooling channels (60, 62) have different lengths. Domestic appliance device according to one of claims 1 to 4, characterized in that the fan unit (30) and the heat sink unit (20) are arranged in radial symmetry. Home appliance device according to one of the preceding claims, characterized in that the heat sink unit (20) is intended to be connected directly to power components (46). Domestic appliance device according to one of the preceding claims,
characterized by at least one channel unit (50, 52) which is provided to conduct fluid emerging from the heat sink unit (20). Domestic appliance device according to one of the preceding claims, characterized in that the fan unit (30) has at least one suction opening (36) which points into an interior space (14). Domestic appliance with at least one domestic appliance device (10) according to one of the preceding claims.

Images