EP2420657A1 - Coolant fan - Google Patents
Coolant fan Download PDFInfo
- Publication number
- EP2420657A1 EP2420657A1 EP11167072A EP11167072A EP2420657A1 EP 2420657 A1 EP2420657 A1 EP 2420657A1 EP 11167072 A EP11167072 A EP 11167072A EP 11167072 A EP11167072 A EP 11167072A EP 2420657 A1 EP2420657 A1 EP 2420657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- cooling
- cooling element
- fins
- divider
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2050/00—Applications
- F01P2050/30—Circuit boards
Definitions
- fans are often used for cooling a motor.
- PWM pulse width modulation
- the cooling of the regulator is also erfoderlich, which takes place by means of the cooling air flow of the electric fan to be controlled.
- the heat sink of such a regulator is placed so far directly in the air flow of the fan.
- EMC EMC interference
- a fan is understood to mean an electrical device which has an electric motor and fan blades driven by the electric motor. These fan blades can rotate within a range of rotation when the electric motor is on.
- the fan bracket is usually an element made of plastic, which forms a frame in which the fan is fixed, so that the fan can be installed by the fan bracket very easily belspielnger in a motor vehicle.
- a cooling element can be understood to be a passive component which is thermally coupled to an electronic circuit, for example, and can dissipate heat from this electronic circuit.
- This cooling element has a cooling element plate which has a polygonal shape, which is substantially approximated to a triangular shape. In particular, the cooling element plate can have a shape that corresponds to a triangle with capped triangle tips.
- the present invention is based on the recognition that in conventional cooling fan blower usually a certain space between the fan and the fan bracket is not used. These are usually a corner between the rotational range of the fan blades and a corner of the fan bracket, Now, if the cooling element designed accordingly, especially in the above form, this previously unused space can now be used by installing the cooling element, so that a compact form of the cooling air blower can be realized
- the present invention has the advantage that now compared to previous cooling air blowers, a lower height of these components can be achieved. At the same time, however, an efficient cooling can be ensured since the cooling fins can protrude into the air flow, which is caused by the fan blades during operation of the fan. In this way, a reliable cooling of the controller for the fan is ensured.
- the cooling element is positioned such that an area between the cooling fins is oriented to the rotation range of the fan blades.
- Such an embodiment of the present invention offers the advantage that the air between the cooling fins can be easily and without obstacles in the rotation range of Fan blades can be removed, so that its optimal cooling of the regulator is ensured by the cooling element.
- the cooling fins may be arcuate, in particular have the shape of a circular segment and / or the cooling fins seen from the frame to be concave bent.
- Such an embodiment of the present invention has the advantage that the longest possible path of the air can be realized by the cooling fins, so that as well as possible a cooling effect of the regulator is ensured by the cooling element
- the cooling element may consist of a metal, in particular of aluminum. Such a cooling element is also inexpensive to produce.
- the cooling element may have a separating web which extends substantially perpendicular to the cooling ribs and to the cooling element plate and which connects the cooling ribs to one another.
- a separating web which extends substantially perpendicular to the cooling ribs and to the cooling element plate and which connects the cooling ribs to one another.
- the divider can extend farther away from the radiator plate than the cooling fins.
- a second fan may further be provided, which is fixed by the fan bracket at a certain position, wherein the shipserhalterung has a partition between the first fan and the second fan and wherein the divider
- the respective controller output stages of the two fans can be cooled together by a single cooling element in the controller, with an optimum air flow for heat dissipation for each of the two controller output stages is possible. At the same time as trouble-free control as possible can be ensured even if one of the two controller output stages fails.
- a further region between the cooling fins may be oriented in a rotation range of fan blades of the second fan.
- Another advantage of the embodiments of the present invention can be seen in the fact that when installed between two fans, a barrier between the two fans can be formed to prevent interference of the air flows of the single fans against each other and the cooling of the Regulator by the still functioning fan to ensure.
- a short cable connection between the respective controllers and the electric fan motor (s) to be controlled can be realized, which is advantageous in terms of EMC.
- a cooling fan 100 in the form of a dual-fan is shown, in which a first electric fan 110 is shown on the left side and a second electric fan 120 on the right side, both of which are fixed or held by a common fan support 130
- a partition wall 140 is provided, for example made of plastic, which may be part of the fan bracket 130.
- the fan bracket 130 may include a frame or be a frame, with the help of thede Kunststoffgebläse100 can be installed in another component such as a vehicle.
- the simplified representation of the arrangement of components of the cooling air blower 100 results in the corner regions 150 in a free space in the Zargenboden, which can be used for the arrangement of the cooling element of a controller for the fan advantageous when the cooling element is designed accordingly , It should be taken into account that a cooling air can easily reach in the direction of the air flow 160 in a rotational range of the fan blades, in order to achieve an optimal cooling effect,
- FIG. 2 An arrangement possibility of such a cooling element 200 is in the Fig. 2 reproduced by way of example of a dual fan as a cooling air blower 100, wherein it can also be seen that a cable connection 210 between the fans 110 and 120 can be kept very short.
- the in Fig. 2 not shown electronic circuit for the controller or, the controller for the first fan 110 and the second fan 120 may be accommodated. As will be explained later in more detail, it is in the in Fig.
- cooling element 200 around a cooling element with a barrier, that is, a divider to air on the left side of the cooling element 200 through the cooling fins to the first To guide fan 110 and / or on the right side of the cooling element 200 through the cooling fins to the second fan 120.
- a barrier that is, a divider to air on the left side of the cooling element 200 through the cooling fins to the first To guide fan 110 and / or on the right side of the cooling element 200 through the cooling fins to the second fan 120.
- a partition 140 is installed as standard between the two fans, as shown in the illustration Fig. 3 is apparent.
- the cooling element 200 of the regulator for the fan (s) is immersed in the frame bottom so that it is flush with other boundaries of the frame bottom (or the fan holder 130) and / or the partition wall 140.
- the divider of the cooling element prevents the mutual influence of the two fans on a different air flow, if they are operated, inter alia, with different speeds or geometrically designed differently.
- Fig. 4 shows two embodiments of a cooling element 200 and a corresponding heat sink for the one or more regulators of the fan 110 and 120.
- a base plate or cooling element plate is used, which has a modified triangular shape as a basic shape.
- the shape of the cooling fins 400 is adapted to the directions of the air flows in the dual fan module.
- Such an air flow during operation of the cooling air blower 100 and the arrangement of the cooling element 200 according to the Fig. 2 is in the Fig. 5
- the arrows to the left symbolize the air flow towards the first fan 100 and the arrows to the right represent the air flow toward the second fan 120.
- a barrier 410 acts as additional cooling rib and as inner web.
- the cooling fins 400 may be configured arcuate, for example in the form of a circular arc segment.
- the cooling element is advantageously so in the cooling air blower installed that the cooling fins appear to be concavely bent from the outer wall of the fan bracket 130.
- the cooling fins 400 extend substantially vertically from a cooling element plate 420, wherein this cooling element plate 420 can also be referred to as a heat sink.
- the number and shape of the cooling fins 400 are designed according to the heat loss of the electronic power devices to be cooled. Since such a dual controller (for 2 electric fans) is placed between the two fans 110 and 120, the cooling rib designed as a barrier 410 takes over the function of the otherwise integrated separating web 140 of the fan mount 130 in the region of the installed heat sink. This is from the FIGS. 4 and 5 recognizable.
- the designed as a barrier (ie divider) cooling fin may have the same height of the cooling fins 400 or slightly higher than the other cooling fins. It makes sense to adjust the height of the barrier to the height of the otherwise integrated plastic divider 140 of the frame.
- FIG. 6 are different representations of a cooling element 200 for a dual controller, reproduced here with increased barrier (divider), indicating underschledlichen dimensions.
- the upper diagram shows a plan view of such a cooling element 200.
- the base of the triangular shape can be, for example, 120 millimeters wide and the height of the triangular shape can be, for example, 80 millimeters.
- the side cut surface at which the corners of the triangle are cut may be 20 millimeters, and the width of the cut edge at which the lower corner of the triangle is cut may be 30 millimeters.
- the lower left diagram shows a cross-sectional view of the cooling element described above.
- the total height of the cooling element can be 30 millimeters, wherein a cavity of a base material of the cooling element, which acts for example as a heat sink and made of aluminum or other metals, can be 20 millimeters.
- the right representation off Fig. 6 shows a perspective view of the cooling element, wherein it can be seen that the barrier or the divider 410 further extends from the heat sink 420, that is, the cooling element plate, than the cooling fins.
- Fig. 7 shows one too Fig. 6
- the cooling element 200 has a simple barrier 410 whose height does not extend beyond the height of the cooling fins 400, as viewed from the direction of the cooling element plate 420.
- this barrier 410 (ie the cooling rib designed as a separating web) can be dispensed with on the heat sink.
- Fig. 8 Such an embodiment of the invention is shown in the illustrations of Fig. 8 reproduced in perspective view.
- the presentation Fig. 8 corresponds to the representation from Fig. 4 , but with the difference that the barrier 410 has been omitted.
- a general basic design "triangular shape" for the heat sink of the controller can be identified, which can be carried out with and without barrier depending on the application.
- cooling element can in a single-fan system, such as in the Fig. 9 is shown schematically, are also arranged in a free space 150 between a rotation range of the fan blades and an outer wall of the fan bracket 130.
- the cooling ribs should also be oriented so that an area between the cooling ribs points in the rotation range of the fan blades to ensure the best possible, that is trouble-free air flow from the cooling fins to the fan out.
- Fig. 10 again shows different representations of a cooling element 200 to illustrate a concrete embodiment with disclosed dimensions.
- the illustration corresponds to the Fig. 10 the representations from the FIGS. 6 and 7 , but now the barrier 410 is omitted, so that the in Fig. 10 shown cooling element can be advantageously used for a single-fan system.
- connection lines 210 between the controller and fan (s) can be made relatively short. It can be assumed here of a respective maximum length of about 16 cm.
- the short connections have an advantageous effect on the EMC behavior.
- the controller usually shuts off this faulty fan.
- the still functioning fan will continue to operate - in some cases at a higher speed.
- the power components of the regulator eg, final stage transistors, which are often configured as MOSFETs
- the still functioning fan must also be cooled by its airflow.
- the right fan power elements it is necessary for the right fan power elements to be located in the right heat sink area of the controller and, analogously, for the left fan power elements in the left heat sink area of the controller.
- the power electronics components of the regulator circuits or, the power amplifiers can be placed directly under the heat sink, as in the Fig. 11 is reproduced.
- the final stage transistors for the fan 110 are placed and in the right area 1110 on the right side of the cooling element, the output stage transistors for the second fan 120 are placed.
- the simple presentation Fig. 5 makes the directions of the air currents clear. This ensures that even if one fan fails, optimal cooling takes place or that compared to conventional systems, the cooling of the vehicle, even in this case of error, can continue to work.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Im Bereich der Kraftfahrzeugtechnik werden oftmals Lüfter zur Kühlung eines Motors eingesetzt. Dabei werden seit Jahrzehnten elektronische Regler, beispielsweise unter Verwendung einer PWM-Steuerung (PWM = Pulsweitenmodulation), in Kraftfahrzeugen verwendet, um beispielsweise die Drehzahl(en) des(r) Lüfter(s) einer Kühlanlage zu steuern. Hierbei ist ferner auch die Kühlung des Reglers erfoderlich, welche mittels des kühlluftstromes des zu steuernden Elektrolüfters erfolgt. Der Kühlkörper eines solchen Reglers wird dabei bisher direkt im Luftstrom des Lüfters platziert.In the field of automotive technology fans are often used for cooling a motor. In this case, electronic controllers, for example using PWM control (PWM = pulse width modulation), have been used in motor vehicles for decades in order to control, for example, the rotational speed (s) of the fan (s) of a cooling system. In this case, the cooling of the regulator is also erfoderlich, which takes place by means of the cooling air flow of the electric fan to be controlled. The heat sink of such a regulator is placed so far directly in the air flow of the fan.
Ein solcher Einsatz der elektronischen Regler nach dem Stand der Technik, wie beispielsweise in der
Es ist die Aufgabe der vorliegenden Erfindung, ein verbessertes Kühlluftgebläse zu schaffen,It is the object of the present invention to provide an improved cooling air blower,
Diese Aufgabe wird durch ein Kühlluftgebläsegemäß dem unabhängigen Anspruch gelöst. Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen sowie aus der nachfolgenden Beschreibung.This object is achieved by a cooling air blower according to the independent claim. Advantageous embodiments of the invention will become apparent from the dependent claims and from the following description.
Die vorliegende Erfindung schaffte ein Kühlluftgebläse mit folgenden Merkmalen:
- mindestens einem Lüfter mit Lüfterblättern, die in einem Drehbereich beweglich sind;
- einer Lufterhalterung mit einer im Wesentlichen rechteckigen Zarge, wobei die Lüfterhalterung den Lüfter in einer bestimmten Position fixiert, und
- einem Regler für den Lüfter mit einem Kühlelement, wobei das Kühlelement eine Kühlelementplatte aufweist, die eine Polygonform aufweist, welche im Wesentlichen einer Dreiecksform angenähert ist, wobei das Kühlelement eine Mehrzahl von Kühlrippen aufweist, die sich im Wesentlichen senkrecht von einer Kühlelementplatte erstrecken und wobei das Kühlelement zwischen der Zarge der Lüfterhalterung und dem Drehbereich der Lüfterblätter positioniert ist.
- at least one fan with fan blades that are movable in a range of rotation;
- an air holder with a substantially rectangular frame, wherein the fan bracket fixes the fan in a certain position, and
- a regulator for the fan with a cooling element, the cooling element having a cooling element plate having a polygonal shape which is substantially approximated to a triangular shape, the cooling element having a plurality of cooling fins extending substantially perpendicularly from a cooling element plate and wherein Cooling element between the frame of the fan bracket and the rotational range of the fan blades is positioned.
Unter einem Lüfter wird dabei eine elektrische Vorrichtung verstanden, die einen Elektromotor sowie von dem Elektromotor angetriebene Lüfterflügel aufweist. Diese Lüfterflügel können sich innerhalb eines Drehbereichs drehen, wenn der Elektromotor eingeschaltet ist. Die Lüfterhalterung ist zumeist ein Element aus Kunststoff, das einen Rahmen gebildet, in dem der Lüfter fixiert ist, so dass der Lüfter durch die Lüfterhalterung sehr einfach belspielsweise in einem Kraftfahrzeug verbaut werden kann. Unter einen Kühlelement kann ein passives Bauteil verstanden werden, welches beispielsweise an eine elektronische Schaltung thermisch angekoppelt wird und Wärme von dieser elektronischen Schaltung abführen kann. Dieses Kühlelement weist eine Kühlelementplatte auf, die eine Polygonform hat, die im Wesentlichen einer Dreiecksform angenähert ist. Insbesondere kann dabei die Kühlelementplatte eine Form haben, die einem Dreieck mit gekappten Dreieckspitzen entspricht. Hierdurch wird eine Form geschaffen, die sechs Ecken aufweist, die jedoch nicht einem klassischen Sechseck entspricht, sondern jedoch eher einem Trapez oder eben einem Dreieck mit abgeschnittenen Spitzen. Unter Kühlrippen können Teile des Kühlelements verstanden werden, die sich von der Kühlelementplatte erstrecken und günstiger Weise aus dem gleichen Material gebildet sind, wie die Kühlelementplatte.A fan is understood to mean an electrical device which has an electric motor and fan blades driven by the electric motor. These fan blades can rotate within a range of rotation when the electric motor is on. The fan bracket is usually an element made of plastic, which forms a frame in which the fan is fixed, so that the fan can be installed by the fan bracket very easily belspielsweise in a motor vehicle. A cooling element can be understood to be a passive component which is thermally coupled to an electronic circuit, for example, and can dissipate heat from this electronic circuit. This cooling element has a cooling element plate which has a polygonal shape, which is substantially approximated to a triangular shape. In particular, the cooling element plate can have a shape that corresponds to a triangle with capped triangle tips. As a result, a shape is created that has six corners, which does not correspond to a classic hexagon, but rather a trapezoid or just a triangle with cut tips. Under cooling fins can be understood parts of the cooling element which extend from the cooling element plate and are conveniently formed of the same material as the cooling element plate.
Die vorliegende Erfindung basiert auf der Erkenntnis, dass bei in herkömmlichen Kühllufigebläse meist ein gewisser Bauraum zwischen dem Lüfter und der Lüfterhalterung nicht genutzt wird. Dies sind meist ein Eckbereich zwischen dem Drehbereich der Lüfterflügel und eine Ecke der Lüfterhalterung, Wird nun das Kühlelement entsprechend ausgestaltet, insbesondere in der vorstehend genannten Form, lässt sich diese bisher ungenutzte Bauraum nun durch den Einbau des Kühlelements nutzen, so dass sich eine kompakte Form des Kühlluftgebläses realisieren lässtThe present invention is based on the recognition that in conventional cooling fan blower usually a certain space between the fan and the fan bracket is not used. These are usually a corner between the rotational range of the fan blades and a corner of the fan bracket, Now, if the cooling element designed accordingly, especially in the above form, this previously unused space can now be used by installing the cooling element, so that a compact form of the cooling air blower can be realized
Die vorliegende Erfindung bietet den Vorteil, dass nun gegenüber bisherigen Kühlluftgebläsen eine geringere Höhe dieser Komponenten erreicht werden kann. Zugleich kann dennoch eine effiziente Kühlung sichergestellt werden, da die Kühlrippen in den Luftstrom hineinragen können, der im Betrieb des Lüfters durch die Lüfterblätter verursacht wird. Auf diese Weise ist eine zuverlässige Kühlung des Reglers für den Lüfter sichergestellt.The present invention has the advantage that now compared to previous cooling air blowers, a lower height of these components can be achieved. At the same time, however, an efficient cooling can be ensured since the cooling fins can protrude into the air flow, which is caused by the fan blades during operation of the fan. In this way, a reliable cooling of the controller for the fan is ensured.
Günstig ist es, wenn das Kühlelement derart positionier ist, so dass ein Bereich zwischen den Kühlrippen auf den Drehbereich der Lüfterblätter orientiert ist, Eine derartige Ausführungsform der vorliegenden Erfindung bietet den Vorteil, dass die Luft zwischen den Kühlrippen einfach und ohne Hindernisse in den Drehbereich der Lüfterblätter abgeführt werden kann, so dass seine optimale Kühlung des Reglers durch das Kühlelement sichergestellt ist.It is favorable if the cooling element is positioned such that an area between the cooling fins is oriented to the rotation range of the fan blades. Such an embodiment of the present invention offers the advantage that the air between the cooling fins can be easily and without obstacles in the rotation range of Fan blades can be removed, so that its optimal cooling of the regulator is ensured by the cooling element.
Auch können die Kühlrippen bogenförmig sein, insbesondere die Form eines Kreissegmentes aufweisen und/oder die Kühlrippen von der Zarge aus gesehen konkav gebogen sein. Eine derartige Ausführungsform der vorliegenden Erfindung bietet den Vorteil, dass ein möglichst langer Weg der Luft an den Kühlrippen vorbei realisiert werden kann, so dass ebenfalls eine möglichst gute Kühlwirkung des Reglers durch das Kühlelement sichergestellt istAlso, the cooling fins may be arcuate, in particular have the shape of a circular segment and / or the cooling fins seen from the frame to be concave bent. Such an embodiment of the present invention has the advantage that the longest possible path of the air can be realized by the cooling fins, so that as well as possible a cooling effect of the regulator is ensured by the cooling element
Um eine möglichst gute Wärmeleitfähigkeit und damit eine gute Wärmeabfuhrrate zu gewährleisten, kann das Kühlelement aus einem Metall, insbesondere aus Aluminium bestehen. Ein solches Kühlelement ist zudem preisgünstig herstellbar.In order to ensure the best possible thermal conductivity and thus a good heat removal rate, the cooling element may consist of a metal, in particular of aluminum. Such a cooling element is also inexpensive to produce.
Für eine effiziente Luftführung, insbesondere bei Doppellüftern, kann das Kühlelement einen Trennsteg aufweisen, der sich im Wesentlichen senkrecht zu den Kühlrippen und zu der Kühlelementplatte erstreckt und der die Kühlrippen miteinander verbindet. Eine derartige Ausführungsform der vorlegenden Erfindung bietet den Vorteil, dass eine nochmals vergrößerte Oberfläche des Kühlelements für die Wärmeübertragung genutzt werden kann. Weiterhin lässt sich auch eine Trennung eines Luftstroms für unterschiedliche zu kühlende Bereiche bzw. Regler realisieren.For efficient air guidance, in particular for double fans, the cooling element may have a separating web which extends substantially perpendicular to the cooling ribs and to the cooling element plate and which connects the cooling ribs to one another. Such an embodiment of the present invention offers the advantage that a further enlarged surface of the cooling element can be used for the heat transfer. Furthermore, it is possible also realize a separation of an air flow for different areas to be cooled or controller.
Um eine weitere Verbesserung der Richtwirkung des Luftstroms durch den Trennsteg sicherzustellen kann sich derTrennsteg weiter von der Kühlelementplatte weg erstrecken, als die Kühlrippen.To further enhance the directivity of the airflow through the divider, the divider can extend farther away from the radiator plate than the cooling fins.
Um eine möglichst hohe Kühlleistung bei einer kompakten Bauform des Kühlluftgebläses zu erreichen kann ferner ein zweiter Lüfter vorgesehen sein, der durch die Lüfterhalterung an einer bestimmten Position fixiert ist, wobei die Lufterhalterung eine Trennwand zwischen dem ersten Lüfter und dem zweiten Lüfter aufweist und wobei der Trennsteg an der Trennwand ausgerichtet ist, insbesondere wobei der Trennsteg eine Verlängerung oder Überbrückung der Trennwand bildet, Eine derartige Ausführungsform der vorliegende Erfindung bletet den Vorteil, dass durch ein einziges Kühlelement im Regler die jeweiligen Reglerendstufen der beiden Lüfter gemeinsam gekühlt werden können, wobei eine optimale Luftführung zur Wärmeabfuhr für jeden der beiden Reglerendstufen möglich ist. Zugleich kann eine möglichst störungsfreie Regelung auch bei Ausfall eines der beiden Reglerendstufen sichergestellt werden.In order to achieve the highest possible cooling capacity in a compact design of the cooling air blower, a second fan may further be provided, which is fixed by the fan bracket at a certain position, wherein the Lufterhalterung has a partition between the first fan and the second fan and wherein the divider Such an embodiment of the present invention has the advantage that the respective controller output stages of the two fans can be cooled together by a single cooling element in the controller, with an optimum air flow for heat dissipation for each of the two controller output stages is possible. At the same time as trouble-free control as possible can be ensured even if one of the two controller output stages fails.
Um einen möglichst geringen Luftwiderstand zu verursachen und zugleich die Einbaubarkeit eines solchen kompakten Kühlluftgebläses optimieren zu können schließen die Trennwand und der Trennsteg bevorzugt bündig ab.In order to cause the lowest possible air resistance and at the same time be able to optimize the installation of such a compact cooling air blower close the partition and the divider preferably flush.
Zur weiteren Verbesserung der Kühlung, insbesondere der Reglerendstufe des Reglers, der den zweiten Lüfter regelt und der thermisch mit einem bestimmten Bereich des Kühlelements verbunden ist, kann ein weiterer Bereich zwischen den Kühlrippen in einen Drehbereich von Lüfterblättern des zweiten Lüfters orientiert sein.To further improve the cooling, in particular the controller output stage of the controller, which regulates the second fan and which is thermally connected to a specific region of the cooling element, a further region between the cooling fins may be oriented in a rotation range of fan blades of the second fan.
Vorteilhafte Ausführungsbeispiele der vorliegenden Erfindung werden nachfolgend Bezug nehmend auf die beiliegenden Zeichnungen näher erläutert. Es zeigen:
-
Fig. 1 eine vereinfachte Darstellung der Richtung der Luftströmungen und der
freien Bauräume im Zargenboden in einem Dual-Lüftermodul; -
Fig. 2 eine Darstellung eines Einbaus des Reglers bzw. eines Kühlelementes
in ein Dual-Lüftersystem mit Blickrichtung vom Kühler aus gesehen; -
Fig. 3 eine perspektivische Darstellung eines Einbaus des Reglers bzw. Kühlelementes in ein Dual-Lüftersystem; -
Fig. 4 eine perspektivische Darstellung von Kühlkörper-Grundformen mit zusätzlicher Barriere (d.h. einer Zusatzkühlrippe die als Trennsteg ausgebildet ist) zur Anwendung in Dual-Lüftersystemen; -
Fig. 5 eine Darstellung einer Luftströmung im Kühlelement eines Dual-Reglers
wobei das Kühlelement hier eine erhöhte Barriere (Trennsteg) aufweist; -
Fig. 6 Darstellungen eines Kühlelementes mit erhöhter Barriere (Trennsteg)
für einen Dual-Regler; -
Fig. 7 Darstellungen eines kühlelementes mit einfacher Barriere (Trennsteg)
für einen Dual-Regler -
Fig. 8 perspektivische Darstellungen von Kühlkörper-Grundformen ohne
Trennsteg zur Anwendung in Single-Lüftersystemen; -
Fig. 9 eine Darstellung eines Einbaus des Reglers mit einem Kühlelement in
ein Single-Lüftersystem mit Blickrichtung vom Kühler aus gesehen; -
Fig. 10 perspektivische Darstellungen eines Kühlelementes für einen Single-Regler; und -
Fig.11 eine perspektivische Darstellung von Bereichen zur Platzierung von
Endstufentransistoren oder für andere zu kühlende LeistungsBauelemente unter Verwendung eines Kühlkörpers mit Basis-Trennsteg.
-
Fig. 1 a simplified representation of the direction of the air currents and the
free space in the frame bottom in a dual fan module; -
Fig. 2 a representation of an installation of the controller or a cooling element
in a dual-fan system viewed from the radiator; -
Fig. 3 a perspective view of an installation of the controller or cooling element in a dual-fan system; -
Fig. 4 a perspective view of heatsink basic shapes with additional barrier (ie an additional cooling rib which is designed as a divider) for use in dual-fan systems; -
Fig. 5 a representation of an air flow in the cooling element of a dual regulator
wherein the cooling element here has an elevated barrier (divider); -
Fig. 6 Representations of a cooling element with increased barrier (separating web)
for a dual controller; -
Fig. 7 Representations of a cooling element with a simple barrier (separating web)
for a dual controller -
Fig. 8 perspective views of heatsink basic shapes without
Divider for use in single-fan systems; -
Fig. 9 a representation of an installation of the controller with a cooling element in
a single fan system viewed from the radiator; -
Fig. 10 perspective views of a cooling element for a single regulator; and -
Figure 11 a perspective view of areas for the placement of
End stage transistors or other power components to be cooled using a heat sink with base divider.
In der nachfolgenden Beschreibung der günstigen Ausführungsbeispiele der vorliegenden Erfindung werden für die in den verschiedenen Zeichnungen dargestellten und ähnlich wirkenden Elemente gleiche oder ähnliche Bezugszeichen verwendet, wobei auf eine wiederholt Beschreibung dieser Elemente verzichtet wird. Ferner wird in der nachfolgenden Beschreibung die vorliegende Erfindung an Hand von unterschiedlichen Maßen und Dimensionen erläutert, wobei dies nicht derart zu verstehen ist, dass die Erfindung auf Komponenten mit diesen Maßen und Dimensionen eingeschränkt ist.In the following description of the favorable embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various drawings and similar acting, wherein a repeated description of these elements is omitted. Furthermore, in the following description, the present invention will be explained with reference to different dimensions and dimensions, this is not to be understood as limiting the invention to components of these dimensions and dimensions.
Die nachfolgend näher beschriebenen Ausführungsbeispiele weisen eine ganze Reihe von Vorteilen auf. Beispielsweise lässt sich hierzu anführen, dass eine einheitliche Formgestaltung des Regler-Kühlkörpers bzw. Kühlelementes zum Einbau in Single- und Dual-Lüftersystemen erfolgen kann, wobei der freie Bauraum beispielsweise in Dual-Lüftersystemen zwischen den Lüftern und den Begrenzungen der Zarge in X- und Y-Richtung optimal genutzt werden kann. Weiterhin kann eine dem Luftstrom in der Zarge angepasste Formgebung der Kühlrippen erfolgen, die einen verminderten Luftwiderstand aufweisen. Ferner ist auch eine Kühlrippen-Grundform verwendbar die sowohl für Single- als auch für Dual-Lüftersysteme (gegebenenfalls mit geringfügigen Anpassungen) geeignet ist. Auch lässt sich eine Anzahl der Kühlrippen und Formgebung an die Kühlanforderungen der elektronischen Leistungsbauelemente sehr einfach anpassen. Ein weiterer Vorteil derAusführungsbeispiele der vorliegenden Erfindung kann darin gesehen werden, dass bei Einbau zwischen zwei Lüftern eine Barriere zwischen den beiden Lüftern ausgebildet werden kann, um eine Beeinflussung der Luftströmungen der Einzellüfter gegeneinander zu verhindern und um bei Ausfall eines Elektro-Lüflers noch die Kühlung des Reglers durch den noch funktionierenden Lüfter zu gewährleisten. Zugleich kann eine Anordnung der Leistungstransistoren der Reglerschaltung bei Dual-Lüfter-Reglern am Kühlkörper im Bereich des jeweils zu steuernden Lüfters erfolgen, um bei Ausfall eines Lüfters dessen Leistungsendstufe abzuschalten und damit die Kühlung des noch funktionierenden zweiten Lüftersystems und dessen Leistungstransistoren in der zugehörigen Reglerschallung zu gewährleisten, Schließlich lässt sich eine kurze Kabelverbindung zwischen den betreffenden Reglern und den zu regelnden Elektro-lüfter-Motor(en) realisieren, was sich unter EMV-Aspekten vorteilhaft auszeichnet.The embodiments described in more detail below have a whole series of advantages. For example, this can be stated that a uniform shape of the controller heat sink or cooling element for installation in single and dual fan systems can be done, the free space, for example in dual-fan systems between the fans and the boundaries of the frame in X and Y direction can be used optimally. Furthermore, the air flow in the frame adapted shaping of the cooling fins can be carried out, which have a reduced air resistance. Furthermore, a basic cooling rib form suitable for both single and dual fan systems (possibly with minor adjustments) may be used. Also, a number of the cooling fins and shape can be easily adapted to the cooling requirements of the electronic power devices. Another advantage of the embodiments of the present invention can be seen in the fact that when installed between two fans, a barrier between the two fans can be formed to prevent interference of the air flows of the single fans against each other and the cooling of the Regulator by the still functioning fan to ensure. At the same time, an arrangement of the power transistors of the regulator circuit in dual-fan controllers on the heat sink in the range of the respective fan to be controlled to turn off the power output stage in case of failure of a fan and thus the cooling of the still functioning second fan system and its power transistors in the associated controller sound Finally, a short cable connection between the respective controllers and the electric fan motor (s) to be controlled can be realized, which is advantageous in terms of EMC.
Um sowohl bei Single-Lüftersystemen - als auch bei Dual-Lüftersystemen werden Regler zur Drehzahisteuerung verwendet, welche in die noch freien Bauräume im Boden einer Lüfterzarge integriert werden können, Hierbei wurden Kühlelemente für diese Regler in einer Art "Drelecksform" als optimale Bauform identifiziert, Die die prinzipielle Anordnung von Komponenten eines Lüfters ist dabei gemäß der Darstellung aus
Da sich der Kühlkörper eines solchen Reglers im Luftstrom des Lüfters befinden sollte, um die Erwärmung der elektronischen Leistungsbauelemente zu reduzieren, sollte dieser Regler mit dem Kühlelement in den Bauraum im Bereich zwischen Kühler und Zargenboden eintauchen. Eine Anordnungsmöglichkeit eines solchen Kühlelementes 200 ist in der
Unter Berücksichtigung der Richtungen des Luftstromes im Lüftermodul zwischen Kühler (d.h. Kuhlelement 200) und Lüfterzarge (d.h. der Lüfterhalterung 130) ist es sinnvoll, die Formgebung der Kühlrippen des Kühlelementes oder Kühlkörpers an die Richtung des Luftstromes anzupassen. Dies ermöglicht eine optimale Kühlung des Kühlelementes oder Kühlkörpers. Bei Dual-Lüftersystemen ist standardmäßig zwischen den beiden Lüftern eine Trennwand 140 eingebaut, wie dies aus der Darstellung nach
Ausgehend von den Erkenntnissen im Dual-Lüftermodul wurde eine Bauform des Regler-Kühlkörpers entwickelt, in welcher alle gewonnenen Erkenntnisse umgesetzt sind.
Die Anzahl und die Form der Kühlrippen 400 sind entsprechend der zu kühlenden Verlustwärme der elektronischen Leistungsbauelemente ausgelegt. Da ein solcher Dual-Regler (für 2 Elektrolüfter) zwischen den beiden Lüftern 110 und 120 platziert wird, übernimmt die als Barriere 410 ausgebildete Kühlrippe die Aufgabe des sonst integrierten Trennstegs 140 der Lüfterhalterung 130 und zwar im Bereich des eingebauten Kühlkörpers. Dies ist aus den
In der
Für Anwendungen im Single-Lüftersystem kann diese Barriere 410 (d.h. die als Trennsteg ausgeführte Kühlrippe) auf dem Kühlkörper entfallen. Ein derartiges Ausführungsbeispiel der Erfindung ist in den Darstellungen aus der
Ein solches in
Im Einbau des Kühlelementes, wie er in den
Die einfache Darstellung aus
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010024978A DE102010024978A1 (en) | 2010-06-24 | 2010-06-24 | Cooling fan |
Publications (2)
Publication Number | Publication Date |
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EP2420657A1 true EP2420657A1 (en) | 2012-02-22 |
EP2420657B1 EP2420657B1 (en) | 2016-12-07 |
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Family Applications (1)
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EP11167072.5A Not-in-force EP2420657B1 (en) | 2010-06-24 | 2011-05-23 | Coolant fan |
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EP (1) | EP2420657B1 (en) |
DE (1) | DE102010024978A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015005129B3 (en) * | 2015-04-22 | 2016-08-25 | Audi Ag | Vehicle with a radiator and a radiator fan |
CN108252789A (en) * | 2017-11-20 | 2018-07-06 | 观致汽车有限公司 | Vibration damping cooling fan mounting bracket and apply its cooling system, automobile |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5965296B2 (en) * | 2012-11-22 | 2016-08-03 | 株式会社豊田自動織機 | Cooling fan device for vehicle |
DE102013204069B4 (en) * | 2013-03-11 | 2020-10-01 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Fan frame and fan module for a radiator of a motor vehicle |
DE102022001701A1 (en) | 2022-05-16 | 2023-11-16 | Mercedes-Benz Group AG | Cooling module for a motor vehicle, especially for a motor vehicle |
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US5947189A (en) * | 1997-03-11 | 1999-09-07 | Denso Corporation | Heat exchanging system having cooling fan, for vehicle |
DE19950521A1 (en) * | 1999-10-20 | 2001-04-26 | Behr Gmbh & Co | Fan hood, especially for coolant cooler of IC engine of car consists of plastic and electric motor is located on holder of metal fastened at edge of fan hood |
DE10321732A1 (en) * | 2003-05-14 | 2004-12-02 | Robert Bosch Gmbh | Air blower for cooling motor vehicle engines has additional air outlet for cooling electronic controller so even if fan fails electronic controller is cooled by air flow produced by other fan |
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DE3523223A1 (en) * | 1985-06-28 | 1987-01-02 | Sueddeutsche Kuehler Behr | Fan casing designed as a motor mount |
DE3604089A1 (en) * | 1986-02-08 | 1987-08-13 | Daimler Benz Ag | Heating, ventilating or air-conditioning installation |
DE3916791C3 (en) * | 1988-10-28 | 1998-09-17 | Valeo Sistemi Termici S P A | Fan installation kit for a car heater |
DE9106035U1 (en) * | 1991-05-16 | 1992-09-24 | GKR Gesellschaft für Fahrzeugklimaregelung mbH, 71701 Schwieberdingen | Power controller for fan motors |
DE19949321C1 (en) * | 1999-10-13 | 2001-05-03 | Temic Auto Electr Motors Gmbh | Cooling fan for automobile has electronic control circuit for fan motor contained in housing provided with cooling ribs projecting into path of cooling air provided by fan wheel |
FR2831929B1 (en) * | 2001-11-02 | 2004-02-06 | Valeo Climatisation | MOTOR-FAN GROUP WITH AN INTEGRATED RADIATOR |
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2010
- 2010-06-24 DE DE102010024978A patent/DE102010024978A1/en not_active Withdrawn
-
2011
- 2011-05-23 EP EP11167072.5A patent/EP2420657B1/en not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5947189A (en) * | 1997-03-11 | 1999-09-07 | Denso Corporation | Heat exchanging system having cooling fan, for vehicle |
DE19950521A1 (en) * | 1999-10-20 | 2001-04-26 | Behr Gmbh & Co | Fan hood, especially for coolant cooler of IC engine of car consists of plastic and electric motor is located on holder of metal fastened at edge of fan hood |
DE10321732A1 (en) * | 2003-05-14 | 2004-12-02 | Robert Bosch Gmbh | Air blower for cooling motor vehicle engines has additional air outlet for cooling electronic controller so even if fan fails electronic controller is cooled by air flow produced by other fan |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015005129B3 (en) * | 2015-04-22 | 2016-08-25 | Audi Ag | Vehicle with a radiator and a radiator fan |
CN108252789A (en) * | 2017-11-20 | 2018-07-06 | 观致汽车有限公司 | Vibration damping cooling fan mounting bracket and apply its cooling system, automobile |
Also Published As
Publication number | Publication date |
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EP2420657B1 (en) | 2016-12-07 |
DE102010024978A1 (en) | 2011-12-29 |
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