EP2292979B1 - Cooling device for an induction hob - Google Patents
Cooling device for an induction hob Download PDFInfo
- Publication number
- EP2292979B1 EP2292979B1 EP10173830.0A EP10173830A EP2292979B1 EP 2292979 B1 EP2292979 B1 EP 2292979B1 EP 10173830 A EP10173830 A EP 10173830A EP 2292979 B1 EP2292979 B1 EP 2292979B1
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- EP
- European Patent Office
- Prior art keywords
- channel
- cooling
- cooling device
- embodied
- cooling body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 title claims description 90
- 230000006698 induction Effects 0.000 title claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000001976 improved effect Effects 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
- F24C15/101—Tops, e.g. hot plates; Rings provisions for circulation of air
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
- H05B6/1263—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements using coil cooling arrangements
Definitions
- the invention relates to a cooling device for an Industechnischmaschineskochfeld having a channel for guiding the cooling air. Moreover, the invention also relates to an induction hob, which has a cooling device.
- Induction hobs have to a carrier, on which the inductor is arranged.
- the inductor in the form of a coil can, for example, be spirally wound and arranged in a holder made of plastic, wherein the holder is arranged on the carrier.
- a cooling device is provided for cooling this inductor.
- conventional cooling devices are limited in terms of their cooling options.
- an additional cooling device is provided or the cooling with that cooling device, which is also provided for cooling the inductor is only very limited possible.
- by the direct flow of the electronics through the cooling air these are also exposed to undesirable impurities in the form of dust particles or the like, which is located in the cooling air.
- the EP 0 561 219 A1 discloses an inductive hotplate heating.
- the WO 2008/064993 A1 discloses a heater assembly.
- the DE 10 2005 005 527 A1 discloses an induction heater and hob with such an induction heater.
- the EP 1 445 544 A1 discloses a cooktop, in particular an induction cooktop.
- the DE 199 35 835 A1 discloses an induction hob with cooling fan.
- the JP 1 105489 A discloses an induction-heated cooking utensil.
- the EP 1 628 342 A1 discloses a heat sink and a heat sink assembly.
- a domestic appliance cooling device comprises a duct for guiding cooling air.
- the channel is formed open on one longitudinal side and on this open longitudinal side, a cooling body is arranged, which is designed for heat dissipation of electronic components and which closes the longitudinal side of the channel.
- the heat sink thus at the same time also forms a closing device of this open longitudinal side of the channel.
- At least one elevation is formed, which in a Gap in between the space between a second part of the heat sink and spaced therefrom arranged ribs of a first part of the heat sink.
- This also contributes positively to the positional fixation of the components relative to one another.
- a reliable attachment can thus be made possible by manufacturing technology simple yet robust and low-wear elements. This simplifies assembly, which also saves costs.
- the channel is rectilinear and in cross-section U-shaped. Such a shape is particularly advantageous because the basic construction of the channel can be made stable and closed except for the already desired open longitudinal side over the entire length. The flow guidance can be optimized thereby.
- the channel surrounds a first part of the heat sink which extends into the channel and is provided with cooling ribs, and the first part bears against an inner wall of the open longitudinal side of the opposite side part.
- the heat sink is therefore designed and locally positioned so that it is positioned in the flow of cooling air, so that a particularly effective heat dissipation is possible.
- it can be virtually arranged space-minimized and protected within the channel and positioned by the shape of the channel, in particular the U-shape inside.
- a mechanically stable design of the cooling device can be created by the mechanical contacting of this first part with the inner wall of the channel closing side part. Not least, this also ensures a position-stable attachment of the channel relative to the heat sink, so that undesirable relative movements can be avoided in this context.
- the heat sink extends over the entire open longitudinal side of the channel. This is a particularly advantageous embodiment, since thus over the entire Flow path of the cooling air in the channel this quasi flows along the heat sink and thereby a particularly advantageous cooling effect and a particularly large heat dissipation can be ensured.
- the heat sink is an elongated rail, which is connected to an upper part and a lower part of the channel, in particular at the exposed edges of the upper part and the lower part is connected thereto. Also by this positioning and attachment a stable attachment of the components can be ensured together and the cooling effect can be increased.
- the heat sink abuts with an upper edge of a second part on an inner wall of an upper part of the channel, and a lower edge of the second part of the heat sink is abutted against a front edge of the lower part of the channel.
- This mechanical contact is particularly advantageous in that the positionally stable fixation of the heat sink relative to the channel can be ensured in several spatial directions. In particular, in the spatial directions perpendicular to the longitudinal axis of the channel thus positionally stable attachment can be achieved.
- the heat sink is non-destructively releasably connected to the channel.
- a separation of these parts can be made, whereby also the accessibility to specific zones of the channel and / or the heat sink is improved.
- this assembly can be dismantled and dismantled several times by this non-destructive detachable arrangement.
- the heat sink is integrally formed and formed of a thermally conductive material, in particular of metal.
- the channel is integrally formed, in particular made of plastic.
- the releasable connection of the heat sink to the channel can also be formed, for example, by a latching mechanism or a clipping or the like.
- the channel preferably has a receiving flange at a first end, which in particular constitutes a circumferential receiving flange which widens away from the channel.
- a blower with a housing attachable.
- the receiving flange is formed so that it limits the open longitudinal side viewed in the longitudinal direction of the channel.
- the receiving flange in the assembled state of the channel with the heat sink also forms a stop for the heat sink in the longitudinal direction of the channel, wherein in this context and thus also in the third spatial direction, a position fixation is ensured.
- the channel at a second end which is opposite to the first end, on an air deflection, which has an inclined baffle and which is open to the inside.
- this Gutumlenkelement is preferably designed so that it limits the open longitudinal side of the channel at this second end and is in particular designed so that it also considered the stop for the heat sink in the longitudinal direction of the channel represents. For this purpose, a further position fixation to avoid a relative movement of the heat sink and the channel is given in the longitudinal direction of the channel.
- the invention relates to an induction hob, which has a cooling device according to the invention or an advantageous embodiment thereof.
- the cooling device is arranged on an underside of a support for a heating device of the hob, in particular an inductor, and designed for cooling the heating device.
- the carrier has through holes, for example slots, through which the cooling air generated by the fan and guided by the cooling device can be conducted, and in particular can also be conducted through the inductor.
- the cooling device can be arranged by screw or by locking elements or the like on the underside of the carrier.
- reinforcing struts are mounted on the outside of the channel, so that the torsional stiffness of the channel is improved.
- the cooling fins of the stiffening struts also serve as a support of the cooling device on the underside of the carrier, so that the channel is positioned at a distance to the underside of the carrier.
- the height of the stiffening strut is between 6 mm and 10 mm, so that the first part of the heat sink located in the channel is preferably located about 8 mm away from the underside of the carrier.
- Fig. 1 is a schematic perspective view of a channel 1 of a cooling device 2 ( Fig. 2 ).
- the channel 1 is designed and arranged for guiding cooling air for cooling inductors of an induction hob.
- the channel 1 is integrally formed and made of plastic.
- the channel 1 is also formed in a straight line and has an upper part 3, a lower part 4 and a side part 5 in the embodiment.
- the lateral part 5 opposite longitudinal side 6 is formed open in contrast.
- the channel 1 thus has a U-shape in cross section, which is laid laterally.
- the lower part 4 and the side part 5 circumferential reinforcing struts 7, 8, 9 and 10 and 11 are formed. These serve to stiffen the channel 1 and beyond as supporting supports for mounting on a support 12 (FIG. Fig. 4 ) of the induction hob.
- the channel 1 has a first end 13, on which a frame-like, completely circumferential flange 14 is integrally formed.
- the receiving flange 14 is formed widened from the end 13 to the front edge facing away from the end 13.
- the receiving flange 14 is for receiving a housing of a blower 15 (FIG. Fig. 2 ) educated.
- a side wall 16 is formed so that it viewed in the direction of the axis A as a stop for a heat sink 17 (FIG. Fig. 2 ) serves.
- the channel 1 comprises, at an opposite second end 18, an air deflection element 19, which has an inclined deflection wall 20.
- the deflecting element 19 is designed to be open on its underside 21, so that the gaseous medium flowing through the channel 1 reaches the deflecting wall 20 and from there exits via the opening of the deflecting element 19 to the outside.
- the deflecting element 19 furthermore has a side wall 22 which, like the side wall 16 of the receiving flange 14, delimits the longitudinal side 6 to the front and to the rear.
- the side wall 22 also serves as a stop for the heat sink 17, so that it can be fixed positionally stable in the direction of the longitudinal axis A.
- Fig. 2 is shown in a plan view of the cooling device 2, to which the heat sink 17 is connected to the channel 1.
- the heat sink 17 is designed so that it is designed to receive electronic components 23, 24, 25, 26, 27 and 28.
- the heat generated by the electronic components 23 to 28 during operation is dissipated via the heat sink 17.
- the heat sink 17 is elongated and arranged on the channel 1, that the open longitudinal side 6 is closed by this heat sink 17.
- the heat sink 17 comprises a first part which extends into the channel 1, the first part 29 (FIG. Fig. 3 ) is formed with a plurality of in the direction of the longitudinal axis A and spaced from each other arranged cooling fins.
- the cooling fins extend both upwards and downwards.
- the heat sink 17 comprises a second part 30, which extends outside the channel 1, wherein this tapers away from the channel 1. That is, the second part 30 has an inclined one Surface 31, on which the electronic components 23 to 28 are mounted.
- the heat sink 17 is integrally formed and designed in particular of metal.
- the heat sink 17 is also releasably connected to the channel 1.
- the first part 29 extends over the entire width of the channel in the interior of this channel 1. This is in Fig. 1 as in Fig. 5 shown.
- the heat sink 17 is designed in terms of its height at the junction with the channel 1 in the region of the open longitudinal side 6 so that it is contacted with the upper part 3 and the lower part 4.
- the channel 1 thus engages in the assembled state, the first part 29 of the heat sink 17.
- the heat sink 17 is also elongated and extends over the entire open longitudinal side. 6
- Fig. 3 is a perspective view from below of the cooling device 2 is shown.
- FIG. 4 is a bottom view of the carrier 12 is shown, wherein the cooling device 2 is shown in the not yet mounted state on the support 12.
- the carrier 12 has slots 32 through which the cooling air flow generated by the fan 15 is transported to the opposite side of the carrier 12 and there, the inductors are cooled. In addition, it is achieved with the cooling air flow that the waste heat generated by the electronic components 23 to 28 is dissipated. Due to the specific positioning and arrangement of the heat sink 17 and its configuration, the cooling air flow flows over the entire length of the heat sink 17, whereby the cooling effect and the heat dissipation is particularly advantageous.
- a holding element made of plastic is arranged, which is designed to receive the preferably spirally wound inductor coil.
- Fig. 5 is shown in a schematic sectional view of the induction hob 33.
- the cooling device 2 is shown in the assembled state.
- the channel 1 completely accommodates the first part 29 with its cooling ribs.
- This first part 29 extends over the entire width (viewed in the x direction) of the channel 1 and abuts against an inner wall 34 of the side part 5.
- elevations 37 and 38 are formed on an inner wall 35 of the upper part 3 and on an inner wall 36 of the lower part 4 of the channel 1. These extend into intermediate spaces 39 and 40.
- the intermediate spaces 39 and 40 are arranged between the second part 30 and the first cooling fins 41 and 42 spaced therefrom.
- the positionally stable arrangement of the heat sink 17 can be ensured to the channel 1, so that an undesirable relative movement in the x-direction and y-direction between the channel 1 and the heat sink 17 can be avoided.
- This is further facilitated by the fact that an upper edge 43 of the second part 30 abuts against the inner wall 35 and a stop in the y-direction is formed.
- a lower edge 44 of the second part 30 abuts against a front edge 45 of the lower part 4, so that this front edge 45 serves as a quasi stop in the x-direction for the second part 17.
- the height of the stiffening element 8 is dimensioned so that the first part 29 of the heat sink 17 is spaced about 8 mm from the underside of the carrier 12.
- a circuit carrier 46 is formed, which receives the electronic components 23 to 28, wherein moreover further electronic components are arranged thereon.
- the circuit carrier 46 is arranged with its underside about 6.5 mm from the underside of the carrier 12 spaced.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
Die Erfindung betrifft eine Kühlvorrichtung für ein Indusktionskochfeld, welche einen Kanal zum Führen der Kühlluft aufweist. Darüber hinaus betrifft die Erfindung auch ein Induktionskochfeld, welches eine Kühlvorrichtung aufweist.The invention relates to a cooling device for an Indusktionskochfeld having a channel for guiding the cooling air. Moreover, the invention also relates to an induction hob, which has a cooling device.
Hausgeräte wie Kochfelder und im Besonderen Induktionskochfelder weisen Heizvorrichtungen auf, die zur Wärmeerzeugung für Kochzonen vorgesehen sind, auf denen Zubereitungsbehälter für Lebensmittel aufgestellt, werden können. Induktionskochfelder weisen dazu einen Träger auf, auf dem der Induktor angeordnet ist. Der Induktor in Form einer Spule kann dabei beispielsweise spiralförmig gewickelt sein und in einer Halterung aus Kunststoff angeordnet sein, wobei die Halterung auf dem Träger angeordnet ist. Zur Kühlung dieses Induktors ist eine Kühlvorrichtung vorgesehen. Herkömmliche Kühlvorrichtungen sind jedoch im Hinblick auf ihre Kühlmöglichkeiten eingeschränkt. Gerade im Hinblick auch auf eine Kühlung der Elektronik des Kochfelds ist eine zusätzliche Kühlvorrichtung vorgesehen oder die Kühlung mit derjenigen Kühlvorrichtung, welche auch zur Kühlung des Induktors vorgesehen ist, ist nur sehr bedingt möglich. Darüber hinaus ist durch das direkte Anströmen der Elektronik durch die Kühlluft diese auch unerwünschten Verunreinigungen in Form von Staubpartikeln oder dergleichen ausgesetzt, die sich in der Kühlluft befindet.Domestic appliances such as cooktops and in particular induction cooktops have heating devices which are provided for generating heat for cooking zones on which food preparation containers can be placed. Induction hobs have to a carrier, on which the inductor is arranged. The inductor in the form of a coil can, for example, be spirally wound and arranged in a holder made of plastic, wherein the holder is arranged on the carrier. For cooling this inductor, a cooling device is provided. However, conventional cooling devices are limited in terms of their cooling options. Especially with regard to a cooling of the electronics of the hob, an additional cooling device is provided or the cooling with that cooling device, which is also provided for cooling the inductor is only very limited possible. In addition, by the direct flow of the electronics through the cooling air, these are also exposed to undesirable impurities in the form of dust particles or the like, which is located in the cooling air.
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Es ist Aufgabe der vorliegenden Erfindung, eine Kühlvorrichtung für ein Induktionskochfeld, zu schaffen, mittels welchem die verbesserte Kühlung von Komponenten erreicht werden kann und insbesondere auch die Verschmutzung der Elektronik durch direkt anströmende Kühlluft vermieden werden kann.It is an object of the present invention to provide a cooling device for an induction hob, by means of which the improved cooling of components can be achieved and in particular the contamination of the electronics can be avoided by directly flowing cooling air.
Diese Aufgabe wird durch eine Kühlvorrichtung, welche die Merkmale nach Anspruch 1 aufweist, und ein Induktionskochfeld, welches die Merkmale nach Anspruch 12 aufweist, gelöst.This object is achieved by a cooling device having the features of claim 1, and an induction hob having the features of
Eine erfindungsgemäße Kühlvorrichtung für ein Hausgerät umfasst einen Kanal zum Führen von Kühlluft. Der Kanal ist an einer Längsseite offen ausgebildet und an dieser offenen Längsseite ist ein Kühlkörper angeordnet, welcher zur Wärmeabfuhr von elektronischen Bauteilen ausgebildet ist und welcher die Längsseite des Kanals verschließt. Der Kühlkörper bildet somit zugleich auch eine Verschließvorrichtung dieser offenen Längsseite des Kanals. Durch eine derartige Ausgestaltung der Kühlvorrichtung kann diese besonders kompakt und stabil ausgebildet werden und ermöglicht darüber hinaus eine wesentlich verbesserte Kühlung von Komponenten. Es wird insbesondere damit auch die Vermeidung eines direkten Anströmens der elektronischen Bauteile durch Kühlluft vermieden, wodurch auch die Beaufschlagung mit Staub oder sonstigen Schmutzpartikeln verhindert wird.A domestic appliance cooling device according to the invention comprises a duct for guiding cooling air. The channel is formed open on one longitudinal side and on this open longitudinal side, a cooling body is arranged, which is designed for heat dissipation of electronic components and which closes the longitudinal side of the channel. The heat sink thus at the same time also forms a closing device of this open longitudinal side of the channel. By such a design of the cooling device, this can be made particularly compact and stable and also allows a much improved cooling of components. In particular, this avoids the avoidance of a direct flow of the electronic components through cooling air, which also prevents the application of dust or other dirt particles.
An einer Innenwand eines Oberteils des Kanals und an einer Innenwand eines Unterteils des Kanals ist jeweils zumindest eine Erhebung ausgebildet, welche sich in einem Zwischenraum zwischen einem zweiten Teil des Kühlkörpers und beabstandet dazu angeordneten Rippen eines ersten Teils des Kühlkörpers hineinerstrecken. Auch dies trägt positiv zur Positionsfixierung der Komponenten relativ zueinander bei. Insbesondere können somit durch fertigungstechnisch einfache und dennoch robuste und verschleißarme Elemente eine zuverlässige Aneinanderanbringung ermöglicht werden. Dies vereinfacht die Montage, wodurch auch Kosten eingespart werden.On an inner wall of an upper part of the channel and on an inner wall of a lower part of the channel at least one elevation is formed, which in a Gap in between the space between a second part of the heat sink and spaced therefrom arranged ribs of a first part of the heat sink. This also contributes positively to the positional fixation of the components relative to one another. In particular, a reliable attachment can thus be made possible by manufacturing technology simple yet robust and low-wear elements. This simplifies assembly, which also saves costs.
Der Kanal ist geradlinig ausgebildet und im Querschnitt U-förmig. Eine derartige Formgebung ist besonders vorteilhaft, da die Grundkonstruktion des Kanals stabil und bis auf die ohnehin gewünschte offene Längsseite über die gesamte Länge geschlossen ausgebildet werden kann. Die Strömungsführung kann dadurch optimiert werden.The channel is rectilinear and in cross-section U-shaped. Such a shape is particularly advantageous because the basic construction of the channel can be made stable and closed except for the already desired open longitudinal side over the entire length. The flow guidance can be optimized thereby.
Vorzugsweise ist vorgesehen, dass der Kanal einen sich in den Kanal erstreckenden und mit Kühlrippen versehenden ersten Teil des Kühlkörpers umgreift und der erste Teil an einer Innenwand der offenen Längsseite des gegenüber liegenden Seitenteils anliegt. Der Kühlkörper ist daher so konzipiert und örtlich so positioniert, dass er quasi in der Strömung der Kühlluft positioniert ist, wodurch eine besonders effektive Wärmeabfuhr möglich ist. Darüber hinaus kann er quasi auch bauraumminimiert und geschützt innerhalb des Kanals angeordnet werden und durch die Formgebung des Kanals insbesondere die U-Form innenliegend positioniert werden. Darüber hinaus kann durch die mechanische Kontaktierung dieses ersten Teils mit der Innenwand des den Kanal verschließenden Seitenteils auch eine mechanisch stabile Ausgestaltung der Kühlvorrichtung geschaffen werden. Nicht zuletzt ist dadurch auch eine positionsstabile Anbringung des Kanals relativ zum Kühlkörper gewährleistet, so dass in diesem Zusammenhang unerwünschte relative Bewegungen vermieden werden können.It is preferably provided that the channel surrounds a first part of the heat sink which extends into the channel and is provided with cooling ribs, and the first part bears against an inner wall of the open longitudinal side of the opposite side part. The heat sink is therefore designed and locally positioned so that it is positioned in the flow of cooling air, so that a particularly effective heat dissipation is possible. In addition, it can be virtually arranged space-minimized and protected within the channel and positioned by the shape of the channel, in particular the U-shape inside. In addition, a mechanically stable design of the cooling device can be created by the mechanical contacting of this first part with the inner wall of the channel closing side part. Not least, this also ensures a position-stable attachment of the channel relative to the heat sink, so that undesirable relative movements can be avoided in this context.
Vorzugsweise erstreckt sich der Kühlkörper über die gesamte offene Längsseite des Kanals. Dies ist eine besonders vorteilhafte Ausführung, da somit über den gesamten Strömungsweg der Kühlluft im Kanal diese quasi an dem Kühlkörper entlang strömt und dadurch ein besonders vorteilhafter Kühleffekt und eine besonders große Wärmeabfuhr gewährleistet werden kann.Preferably, the heat sink extends over the entire open longitudinal side of the channel. This is a particularly advantageous embodiment, since thus over the entire Flow path of the cooling air in the channel this quasi flows along the heat sink and thereby a particularly advantageous cooling effect and a particularly large heat dissipation can be ensured.
Vorzugsweise ist der Kühlkörper eine längliche Schiene, welche mit einem Oberteil und einem Unterteil des Kanals verbunden ist, insbesondere an den freiliegenden Rändern des Oberteils und des Unterteils mit diesem verbunden ist. Auch durch diese Positionierung und Anbringung kann eine stabile Befestigung der Komponenten miteinander gewährleistet werden und die Kühlwirkung erhöht werden.Preferably, the heat sink is an elongated rail, which is connected to an upper part and a lower part of the channel, in particular at the exposed edges of the upper part and the lower part is connected thereto. Also by this positioning and attachment a stable attachment of the components can be ensured together and the cooling effect can be increased.
Vorzugsweise liegt der Kühlkörper mit einem oberen Rand eines zweiten Teils an einer Innenwand eines Oberteils des Kanals an und ein unterer Rand des zweiten Teils des Kühlkörpers ist an einem vorderen Rand des Unterteils des Kanals anschlagend angeordnet. Diese mechanische Kontaktierung ist dahingehend besonders vorteilhaft, da in mehreren Raumrichtungen die positionsstabile Fixierung des Kühlkörpers relativ zum Kanal gewährleistet werden kann. Insbesondere in den Raumrichtungen senkrecht zur Längsachse des Kanals kann somit diese positionsstabile Anbringung erreicht werden.Preferably, the heat sink abuts with an upper edge of a second part on an inner wall of an upper part of the channel, and a lower edge of the second part of the heat sink is abutted against a front edge of the lower part of the channel. This mechanical contact is particularly advantageous in that the positionally stable fixation of the heat sink relative to the channel can be ensured in several spatial directions. In particular, in the spatial directions perpendicular to the longitudinal axis of the channel thus positionally stable attachment can be achieved.
Vorzugsweise ist der Kühlkörper zerstörungsfrei lösbar mit dem Kanal verbunden. Dadurch kann zu Montagezwecken, zu Wartungszwecken oder sonstigen Tätigkeiten eine Separierung dieser Teile vorgenommen werden, wobei auch somit die Zugänglichkeit zu spezifischen Zonen des Kanals und/oder des Kühlkörpers verbessert ist. Darüber hinaus kann durch diese zerstörungsfrei lösbare Anordnung mehrfach ein Montieren und Demontieren erfolgten.Preferably, the heat sink is non-destructively releasably connected to the channel. As a result, for assembly purposes, for maintenance purposes or other activities, a separation of these parts can be made, whereby also the accessibility to specific zones of the channel and / or the heat sink is improved. In addition, this assembly can be dismantled and dismantled several times by this non-destructive detachable arrangement.
Vorzugsweise ist der Kühlkörper einstückig ausgebildet und aus einem wärmeleitenden Material, insbesondere aus Metall ausgebildet. Vorzugsweise ist auch der Kanal einstückig, insbesondere aus Kunststoff, ausgebildet. Die lösbare Verbindung des Kühlkörpers mit dem Kanal kann beispielsweise auch durch eine Verrastmechanik oder ein Verklipsen oder dergleichen ausgebildet sein.Preferably, the heat sink is integrally formed and formed of a thermally conductive material, in particular of metal. Preferably, the channel is integrally formed, in particular made of plastic. The releasable connection of the heat sink to the channel can also be formed, for example, by a latching mechanism or a clipping or the like.
Vorzugsweise weist der Kanal an einem ersten Ende einen Aufnahmeflansch auf, welcher insbesondere einen umlaufenden und zum Kanal abgewandten Seite aufweitenden Aufnahmeflansch darstellt. An diesem Aufnahmeflansch ist ein Gebläse mit einem Gehäuse anbringbar. Vorzugsweise ist der Aufnahmeflansch so gebildet, dass er die offene Längsseite in Längsrichtung des Kanals betrachtet begrenzt. Dadurch bildet der Aufnahmeflansch im zusammengesetzten Zustand des Kanals mit dem Kühlkörper auch einen Anschlag für den Kühlkörper in Längsrichtung des Kanals, wobei auch in diesem Zusammenhang und somit auch in der dritten Raumrichtung eine Positionsfixierung gewährleistet ist.The channel preferably has a receiving flange at a first end, which in particular constitutes a circumferential receiving flange which widens away from the channel. At this mounting flange, a blower with a housing attachable. Preferably, the receiving flange is formed so that it limits the open longitudinal side viewed in the longitudinal direction of the channel. As a result, the receiving flange in the assembled state of the channel with the heat sink also forms a stop for the heat sink in the longitudinal direction of the channel, wherein in this context and thus also in the third spatial direction, a position fixation is ensured.
Vorzugsweise weist der Kanal an einem zweiten Ende, welches dem ersten Ende gegenüber liegt, ein Luftumlenkelement auf, welches eine geneigte Umlenkwand aufweist und welches nach innen offen ist. Auch dieses Luftumlenkelement ist vorzugsweise so konzipiert, dass es die offene Längsseite des Kanals an diesem zweiten Ende begrenzt und ist insbesondere so ausgebildet, dass es auch den Anschlag für den Kühlkörper in Längsrichtung des Kanals betrachtet, darstellt. Auch hierzu ist eine weitere Positionsfixierung zur Vermeidung einer Relativbewegung des Kühlkörpers und des Kanals in Längsrichtung des Kanals gegeben.Preferably, the channel at a second end, which is opposite to the first end, on an air deflection, which has an inclined baffle and which is open to the inside. Also, this Luftumlenkelement is preferably designed so that it limits the open longitudinal side of the channel at this second end and is in particular designed so that it also considered the stop for the heat sink in the longitudinal direction of the channel represents. For this purpose, a further position fixation to avoid a relative movement of the heat sink and the channel is given in the longitudinal direction of the channel.
Des Weiteren betrifft die Erfindung ein Induktionskochfeld, welches eine Kühlvorrichtung gemäß der Erfindung oder eine vorteilhafte Ausgestaltung davon aufweist. Die Kühlvorrichtung ist an einer Unterseite eines Trägers für eine Heizeinrichtung des Kochfelds, insbesondere eines Induktors, angeordnet, und zur Kühlung der Heizeinrichtung ausgebildet. Insbesondere weist der Träger durchgängige Löcher, beispielsweise Schlitze auf, durch welche die von dem Gebläse erzeugte und durch die Kühlvorrichtung geführte Kühlluft leitbar ist, und insbesondere auch durch den Induktor leitbar ist. Die Kühlvorrichtung kann durch Schraub- oder durch Rastelemente oder dergleichen an der Unterseite des Trägers angeordnet werden.Furthermore, the invention relates to an induction hob, which has a cooling device according to the invention or an advantageous embodiment thereof. The cooling device is arranged on an underside of a support for a heating device of the hob, in particular an inductor, and designed for cooling the heating device. In particular, the carrier has through holes, for example slots, through which the cooling air generated by the fan and guided by the cooling device can be conducted, and in particular can also be conducted through the inductor. The cooling device can be arranged by screw or by locking elements or the like on the underside of the carrier.
Es ist vorgesehen, dass an der Außenseite des Kanals Verstärkungsstreben angebracht sind, so dass die Verwindungssteifigkeit des Kanals verbessert wird.It is envisaged that reinforcing struts are mounted on the outside of the channel, so that the torsional stiffness of the channel is improved.
Die Kühlrippen der Versteifungsstreben dienen darüber hinaus als Auflage der Kühlvorrichtung an der Unterseite des Trägers, so dass der Kanal an sich beabstandet zu der Unterseite des Trägers positioniert ist. Insbesondere beträgt die Höhe der Versteifungsstrebe zwischen 6 mm und 10 mm, so dass der sich in dem Kanal befindliche erste Teil des Kühlkörpers vorzugsweise etwa 8 mm von der Unterseite des Trägers entfernt befindet.The cooling fins of the stiffening struts also serve as a support of the cooling device on the underside of the carrier, so that the channel is positioned at a distance to the underside of the carrier. In particular, the height of the stiffening strut is between 6 mm and 10 mm, so that the first part of the heat sink located in the channel is preferably located about 8 mm away from the underside of the carrier.
Weitere Merkmale der Erfindung ergeben sich aus den Ansprüchen, den Figuren und der Figurenbeschreibung. Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen, als auch die in der Figurenbeschreibung Merkmale und Merkmalskombinationen und/oder die in den Figuren alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung, wie in den Ansprüchen definiert, zu verlassen.Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description as well as the features and feature combinations and / or the features and feature combinations shown in the figures alone are not only in the respectively indicated combination but also also usable in other combinations or in isolation, without departing from the scope of the invention as defined in the claims.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand schematischer Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine perspektivische Darstellung eines ersten Ausführungsbeispiels eines Kanals einer Kühlvorrichtung;
- Fig. 2
- eine perspektivische Darstellung eines Ausführungsbeispiels einer Kühlvorrichtung von oben;
- Fig. 3
- eine perspektivische Darstellung der Kühlvorrichtung gemäß
Fig. 2 von unten; - Fig. 4
- einen Teilausschnitt eines Induktionskochfelds von unten mit einer Kühlvorrichtung gemäß den Ausführungen in
Fig. 2 und Fig. 3 ; und - Fig. 5
- eine Schnittdarstellung durch das Induktionskochfeld mit einer montierten Kühlvorrichtung und einem montierten Schaltungsträger.
- Fig. 1
- a perspective view of a first embodiment of a channel of a cooling device;
- Fig. 2
- a perspective view of an embodiment of a cooling device from above;
- Fig. 3
- a perspective view of the cooling device according to
Fig. 2 from underneath; - Fig. 4
- a partial section of an induction cooktop from below with a cooling device according to the embodiments in
Fig. 2 and Fig. 3 ; and - Fig. 5
- a sectional view through the induction hob with a mounted cooling device and a mounted circuit board.
In den Figuren werden gleiche oder funktionsgleiche Elemente mit den gleichen Bezugszeichen versehen.In the figures, identical or functionally identical elements are provided with the same reference numerals.
In
In Richtung der Längsachse A betrachtet weist der Kanal 1 ein erstes Ende 13 auf, an dem ein rahmenartig vollständig umlaufender Flansch 14 einstückig angeformt ist. Der Aufnahmeflansch 14 ist ausgehend von dem Ende 13 bis zum von dem Ende 13 abgewandten vorderen Rand aufgeweitet ausgebildet. Der Aufnahmeflansch 14 ist zur Aufnahme eines Gehäuses eines Gebläses 15 (
Durch die vollständig umlaufende Ausgestaltung und die spezielle Anordnung des Aufnahmeflansches 14 ist eine Seitenwand 16 so ausgebildet, dass sie in Richtung der Achse A betrachtet als Anschlag für einen Kühlkörper 17 (
Darüber hinaus umfasst der Kanal 1 an einem gegenüber liegenden zweiten Ende 18 ein Luftumlenkelement 19, welches eine geneigt angeordnete Umlenkwand 20 aufweist. Das Umlenkelement 19 ist an seiner Unterseite 21 offen ausgebildet, so dass das durch den Kanal 1 strömende gasförmige Medium an die Umlenkwand 20 gelangt und von dort über die Öffnung des Umlenkelements 19 nach außen tritt.In addition, the channel 1 comprises, at an opposite second end 18, an
Das Umlenkelement 19 weist darüber hinaus eine Seitenwand 22 auf, welche ebenso wie die Seitenwand 16 des Aufnahmeflansches 14 die Längsseite 6 nach vorne und nach hinten begrenzt. Darüber hinaus dient die Seitenwand 22 ebenfalls als Anschlag für den Kühlkörper 17, so dass sich dieser in Richtung der Längsachse A positionsstabil anbringen lässt.The deflecting
In
Vorzugsweise erstreckt sich der erste Teil 29 über die gesamte Breite des Kanals im Inneren von diesem Kanal 1. Dies ist in
Der Kühlkörper 17 ist im Hinblick auf seine Höhe an der Verbindungsstelle mit dem Kanal 1 im Bereich der offenen Längsseite 6 so konzipiert, dass er mit dem Oberteil 3 und dem Unterteil 4 kontaktiert ist.The
Der Kanal 1 umgreift im zusammengesetzten Zustand somit den ersten Teil 29 des Kühlkörpers 17. Der Kühlkörper 17 ist ebenfalls länglich ausgebildet und erstreckt sich über die gesamte offene Längsseite 6.The channel 1 thus engages in the assembled state, the
In
In der Darstellung gemäß
An der gegenüber liegenden Seite des Trägers 12 ist ein aus Kunststoff ausgebildetes Halteelement angeordnet, welches zur Aufnahme der vorzugsweise spiralförmig gewundenen Induktorspule ausgebildet ist.On the opposite side of the
In
Darüber hinaus ist ein Schaltungsträger 46 ausgebildet, welcher die elektronischen Bauteile 23 bis 28 aufnimmt, wobei darüber hinaus weitere elektronische Bauteile darauf angeordnet sind. Der Schaltungsträger 46 ist mit seiner Unterseite etwa 6,5 mm von der Unterseite des Trägers 12 beabstandet angeordnet.In addition, a
- 11
- Kanalchannel
- 22
- Kühlvorrichtungcooler
- 33
- Oberteiltop
- 44
- Unterteillower part
- 55
- Seitenteilside panel
- 66
- Längsseitelong side
- 7, 8, 9, 10, 117, 8, 9, 10, 11
- Verstärkungsstrebenreinforcing struts
- 1212
- Trägercarrier
- 1313
- erstes Endefirst end
- 1414
- Aufnahmeflanschreceiving flange
- 1515
- Gebläsefan
- 1616
- SeitenwandSide wall
- 1717
- Kühlkörperheatsink
- 1818
- zweites Endesecond end
- 1919
- LuftumlenkelementAir redirecting
- 2020
- Umlenkwandbaffle
- 2121
- Unterseitebottom
- 2222
- SeitenwandSide wall
- 23, 24, 25, 26, 27, 2823, 24, 25, 26, 27, 28
- elektronische Bauteileelectronic components
- 2929
- erstes Teilfirst part
- 3030
- zweites Teilsecond part
- 3131
- geneigte Oberflächeinclined surface
- 3232
- Schlitzeslots
- 33 333 3
- InduktionskochfeldInduction hob
- 34, 35, 3634, 35, 36
- Innenwändeinterior walls
- 37, 3837, 38
- Erhebungensurveys
- 39, 4039, 40
- Zwischenräumeinterspaces
- 41, 4241, 42
- Kühlrippencooling fins
- 4343
- oberer Randupper edge
- 4444
- unterer Randlower edge
- 4545
- vorderer Randfront edge
- 4646
- Schaltungsträgercircuit support
- AA
- Längsachselongitudinal axis
Claims (12)
- Cooling device for an induction hob (33), having a channel (1) for guiding cooling air for cooling inductors of the inductor hob, wherein the channel (1) is embodied as open at a longitudinal side (6) and a cooling body (17) of the cooling device is arranged at said open side (6) and is embodied to dissipate heat from electronic components (24 to 28), and the longitudinal side (6) of the channel (1) is closed by the cooling body (17), characterised in that the channel (1) is embodied as integrally formed and straight and is made of plastic, wherein the channel (1) has a top part (3), a bottom part (4) and a side part (5), wherein a longitudinal side (6) opposite the side part (5) is in contrast embodied as open, so that in cross-section the channel (1) has a U-shape which is laid on its side, wherein circumferential reinforcing struts (7, 8, 9, 10, 11) are embodied on an exterior of the top part (3), of the bottom part (4) and of the side part (5), serving to reinforce the channel (1) and in addition acting as bracing supports for mounting on a support (12) of the induction hob, wherein embodied on an inner wall (35) of the top part (3) of the channel (1) and on an inner wall (36) of the bottom part (4) of the channel (1) in each case is at least one elevation (37, 38), which extend into an intermediate space (39, 40) between a second part (30) of the cooling body (17) and ribs (41, 42), arranged spaced apart therefrom, of a first part (29) of the cooling body (17).
- Cooling device according to claim 1, characterised in that the channel (1) engages with the first part (29) of the cooling body (17) extending into the channel (1) and provided with cooling ribs (41, 42) and the first part (29) abuts an inner wall (34) of the side part (5) opposite the open longitudinal side (6).
- Cooling device according to one of the preceding claims, characterised in that the cooling body (17) extends across the whole longitudinal side (6) of the channel (1).
- Cooling device according to one of the preceding claims, characterised in that the cooling body (17) is an elongated rail which is connected to the top part (3) and the bottom part (4) of the channel (1).
- Cooling device according to one of the preceding claims, characterised in that the cooling body (17) with the first part (29) embodied with ribs (41, 42) extends in the channel (1), in particular across the whole width of the channel (1), and the second part (30) of the cooling body (17) located outside the channel (1) is embodied to taper from the end arranged on the channel (1) to the end facing away from the channel (1).
- Cooling device according to claim 5, characterised in that the second part (30) of the cooling body (17) has an inclined receptive surface (31) on which electronic components (24 to 28) are arranged.
- Cooling device according to one of the preceding claims, characterised in that the cooling body (17) abuts, with a top edge (43) of the second part (30), an inner wall (35) of a top part (3) of the channel (1), and a bottom edge (44) of the second part (30) is arranged to abut a front edge (45) of the bottom part (4) of the channel (1).
- Cooling device according to one of the preceding claims, characterised in that the cooling body (17) is embodied as integrally formed and is made of a heat-conducting material, in particular metal.
- Cooling device according to one of the preceding claims, characterised in that the cooling body (17) is detachably arranged on the channel (1).
- Cooling device according to one of the preceding claims, characterised in that the channel has, on a first end (13), a receiving flange (14), in particular a circumferential receiving flange (14) that expands towards the side facing away from the channel (1), on which a fan (15) can be mounted.
- Cooling device according to one of the preceding claims, characterised in that the channel (1) has, at a second end (18), an air deflection element (19) which has an inclined deflection wall (20) and which is open downwards.
- Induction hob (33) which has a cooling device (2) according to one of the preceding claims, which is arranged on an underside of a support (12) for a heating device, in particular an inductor, and is embodied to cool the heating device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10173830.0A EP2292979B1 (en) | 2009-09-03 | 2010-08-24 | Cooling device for an induction hob |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09382164 | 2009-09-03 | ||
ES200930910A ES2391739A1 (en) | 2009-09-03 | 2009-10-27 | Cooling device for a domestic appliance, and domestic apparatus, especially, induction cooking field, with a cooling device. (Machine-translation by Google Translate, not legally binding) |
EP10173830.0A EP2292979B1 (en) | 2009-09-03 | 2010-08-24 | Cooling device for an induction hob |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2292979A1 EP2292979A1 (en) | 2011-03-09 |
EP2292979B1 true EP2292979B1 (en) | 2016-10-12 |
Family
ID=43431905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10173830.0A Active EP2292979B1 (en) | 2009-09-03 | 2010-08-24 | Cooling device for an induction hob |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4096358A1 (en) * | 2021-05-28 | 2022-11-30 | LG Electronics Inc. | Electric range |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2412104B1 (en) * | 2011-03-10 | 2014-05-21 | BSH Electrodomésticos España S.A. | Support plate for a circuit support of a domestic appliance, arrangement with such a support plate, and induction cooktop with an arrangement |
EP2506671B1 (en) * | 2011-03-29 | 2017-09-13 | BSH Hausgeräte GmbH | Switch device |
EP2679913B1 (en) * | 2012-06-28 | 2019-08-07 | BSH Hausgeräte GmbH | Domestic appliance |
EP3089549B1 (en) * | 2015-04-28 | 2021-01-06 | Whirlpool Corporation | Cooling system for an induction hob |
DE102017211103A1 (en) | 2017-06-29 | 2019-01-03 | E.G.O. Elektro-Gerätebau GmbH | Ventilation device for an electrical appliance and electrical appliance with such a ventilation device |
EP3806582B1 (en) * | 2019-10-09 | 2024-07-03 | BSH Hausgeräte GmbH | Household appliance apparatus |
US20220381438A1 (en) * | 2021-05-28 | 2022-12-01 | Lg Electronics Inc. | Electric range |
KR20220161032A (en) * | 2021-05-28 | 2022-12-06 | 엘지전자 주식회사 | Home appliance and heat sinks installed therein |
WO2024056394A1 (en) * | 2022-09-13 | 2024-03-21 | BSH Hausgeräte GmbH | Domestic appliance device |
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EP1628342A1 (en) * | 2004-08-16 | 2006-02-22 | Dietmar Dr. Kern | Heatsink and heatsink assembly |
EP1936283A2 (en) * | 2006-12-14 | 2008-06-25 | LG Electronics Inc. | Cooking appliance |
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JPH0711984B2 (en) * | 1987-10-16 | 1995-02-08 | 松下電器産業株式会社 | Induction heating cooker |
DE4224405A1 (en) * | 1992-03-14 | 1993-09-16 | Ego Elektro Blanc & Fischer | INDUCTIVE COOKING HEATING |
DE19935835C5 (en) * | 1999-07-29 | 2006-06-29 | BSH Bosch und Siemens Hausgeräte GmbH | Induction hob with cooling fan |
EP1445544B2 (en) * | 2003-02-08 | 2016-03-16 | Electrolux Home Products Corporation N.V. | Cooking hob, especially induction cooking hob |
DE102005005527A1 (en) * | 2005-01-31 | 2006-08-03 | E.G.O. Elektro-Gerätebau GmbH | Induction heating device for cooking area of hob tray, has supply part converting applied voltage into power control for induction coil, where device is formed as installation-finished and/or connection-finished component |
ES2310961B1 (en) * | 2006-11-28 | 2009-10-23 | Bsh Electrodomesticos España, S.A. | HEATING DEVICE PROVISION. |
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2010
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EP1628342A1 (en) * | 2004-08-16 | 2006-02-22 | Dietmar Dr. Kern | Heatsink and heatsink assembly |
EP1936283A2 (en) * | 2006-12-14 | 2008-06-25 | LG Electronics Inc. | Cooking appliance |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP4096358A1 (en) * | 2021-05-28 | 2022-11-30 | LG Electronics Inc. | Electric range |
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