WO2013076022A1 - Miniature radial fan comprising a table-shaped housing - Google Patents

Miniature radial fan comprising a table-shaped housing Download PDF

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Publication number
WO2013076022A1
WO2013076022A1 PCT/EP2012/072925 EP2012072925W WO2013076022A1 WO 2013076022 A1 WO2013076022 A1 WO 2013076022A1 EP 2012072925 W EP2012072925 W EP 2012072925W WO 2013076022 A1 WO2013076022 A1 WO 2013076022A1
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WO
WIPO (PCT)
Prior art keywords
fan
radial
air inlet
radial fan
motor
Prior art date
Application number
PCT/EP2012/072925
Other languages
German (de)
French (fr)
Inventor
Hansjoerg Berroth
Original Assignee
Ebm-Papst St. Georgen Gmbh & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ebm-Papst St. Georgen Gmbh & Co. Kg filed Critical Ebm-Papst St. Georgen Gmbh & Co. Kg
Publication of WO2013076022A1 publication Critical patent/WO2013076022A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0633—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0666—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump a sensor is integrated into the pump/motor design

Definitions

  • the invention relates to a miniature radial fan, as e.g. for the registration of
  • this object is achieved by the subject matter of claim 1.
  • Fig. 1 shows a first embodiment with a fan that of a single-phase
  • ECM electronically commutated motor
  • FIG. 3 shows a third embodiment with a three-phase drive motor
  • Fig. 5 shows a fitting with an axial air inlet and radial air outlets
  • Fig. 6 is a three-dimensional view of a magnetic carrier on which a magnetic ring is arranged, and on which a radial fan is attached.
  • FIG. 1 shows a miniature radial fan 20 approximately on a scale of 7: 1, ie greatly enlarged. Typical dimensions of such a miniature fan are, by way of example, 10 ⁇ 10 ⁇ 10 mm.
  • the fan 20 has a radial fan 22, the as shown in FIG. 6 has five fan blades 24 which are connected at their free end by a ring 26 and which are fixedly connected at this free end with a shaft 28 which rotates in operation about an axis of rotation 30.
  • This shaft 28 is mounted by means of bearings 32, 34 in a bearing tube 36 and serves for the rotatable mounting of the fan wheel 22 and a magnetically conductive magnet carrier 40 fixedly connected thereto, in which a permanent magnet ring 42 is fastened.
  • the bearings 32, 34 may, depending on requirements, be sliding bearings which are press-fitted into the bearing tube 36 and into which the shaft 28 is inserted, or e.g. Miniature ball bearings, which are also mounted in the bearing tube 36.
  • the shaft 28 thus does not serve to drive the fan wheel 22, but only to its storage, and it is easily fastened in the bearings 32, 34 by mere insertion. In these camps it is securely held by the so-called magnetic train between permanent magnet ring 42 and inner stator 60.
  • Magnetic carrier 40 forms the outer rotor 52 of an external rotor electric motor 54.
  • the magnetic carrier 40 passes through a shoulder 56 made of plastic in a tubular
  • Section 58 made of plastic over. At this and at the shoulder 56, the lower ends of the wings 24 are fixed in Fig. 1, i. These are directly from the rotor 52
  • the fan 22 is thus driven in Fig. 1 at its lower end and supported by the shaft 28 at its upper end.
  • the motor 54 has an inner stator 60 which is mounted on the bearing tube 36 and whose radially outer side forms with the permanent magnet ring 42 a magnetically active air gap, in which the torque of the rotor 54 is generated, as is known in the art.
  • the air gap could also be flat, in which case a so-called ironless winding is used in the stator 60 and the permanent magnet ring 42 is usually fastened to the lower side of the shoulder 56.
  • Fig. 2 largely agrees with FIG. 1, which is why in Fig. 2, the same reference numerals are used as in FIG. 1.
  • an H-bridge 64 For power supply and control of the motor 54 is used in FIG. 1 and 2, an H-bridge 64 has two terminals 66, 68 for the supply of a DC voltage and this transforms into a voltage for operating the motor 54.
  • the commutation of the motor 54 may be sensorless, but is also - as shown - the use of a
  • Rotor position sensor 65 possible, which controls the H-bridge 64. (This is omitted in the sensorless version.)
  • the H-bridge 64 may also be supplied with a PWM signal to control the speed of the motor 54 at an input 67 ( Figure 2), e.g. to control or regulate the speed of the motor 54. For example, At low temperatures, the speed of the motor 54 can be lowered sharply to increase its life.
  • the fan 22 is surrounded by a housing part 70, which in Fig. 5 is shown in perspective. It has approximately the shape of a table with a table top 72, are attached to the four legs 74. In the table top 72 is an axial
  • Inflow opening 76, and between the legs 74 are radial
  • the housing part 70 is slipped over the fan 22 and the motor 54 from above and suitably attached to the (only symbolically indicated) base plate 80, e.g. by clipping or gluing.
  • the fan 22 When the motor 54 is running, the fan 22 is driven and sucks through the opening 76 air, as indicated by the arrows 86. This air is then conveyed out through the radial openings 78 and may there be e.g. Cool (not shown) components which are arranged on the base plate 80.
  • a - not shown - temperature sensor are attached, z. Example by means of a carrier, as is known in the art.
  • the ring 26 forms on the impeller 22 an opening 90 (FIG. 6) through which the air flows during operation, as indicated by the arrows 86 in FIGS. 1 and 2.
  • a single stator motor with a laminated stator can be used. But you can z. B. also use a Klauenpolmotor whose structure is known in the art.
  • FIG. Figure 3 shows a radial fan 20 "driven by a three-phase motor 54".
  • To power the motor 54 is a three-phase inverter 64", with its terminals 66, 68 to a (not shown) DC power source
  • An advantage of the invention is that by the fitting 70, the rotor 52 against
  • the shaft 28 has a diameter of less than one millimeter, so that it may be easily bent or otherwise damaged by impact.
  • the fitting 70 prevents such damage
  • the figures and the description show a fan, in particular a miniature radial fan with at least one axial air inlet 76 and at least one radial air outlet 78, with a serving for driving the fan 22 electronically
  • the rotor 52 has a permanent magnet assembly 42 which is disposed on a magnet carrier 40 and cooperates with an inner stator 60, further comprising a bearing tube 36 in which a shaft for supporting a radial fan 24 is mounted, which shaft 28 with an axial End of the radial fan 24 is connected, which serves to transport air from the at least one axial air inlet to the at least one radial air outlet 78, and the radial fan 24 in the region facing away from the air inlet 76 axial end with the Shaft 28 and in the area of its other axial end with the
  • Magnet carrier 40 is rotatably connected, further comprising a ring 26, which connects the wings 24 of the radial fan 22 in the region of the air inlet 76 with each other, and with a fitting 70 which is formed in the manner of a table with legs 74, wherein in the table top 72 of this table-shaped fitting 70 at least one
  • Air inlet opening 76 and between his legs 74 at least one
  • Air outlet opening 78 is arranged, and this table-like fitting 70 is disposed around the radial fan 24 around.
  • the electronically commutated electric motor is designed as a single-phase motor 54.
  • the electronically commutated electric motor is designed as a three-phase motor.
  • the electric motor has a cylindrical air gap.
  • the electric motor 54 has a shallow air gap.
  • the inner stator 60 is attached to the bearing tube 36.
  • a rotor position sensor 65 is associated with the electronically commutated electric motor 54 for its control.
  • the rotor position sensor 65 is arranged on a carrier member 80, on which the motor 54 is arranged.

Abstract

A miniature radial fan has an axial air inlet (76) and a radial air outlet (78). Said fan is powered by an electronically commutated external rotor motor (54), the rotor (52) of which includes a permanent magnet arrangement (42) that is mounted on a magnet carrier (40) and interacts with an internal stator (60). A shaft (28) for supporting a radial fan impeller (24) is mounted in a bearing tube (36). Said shaft is permanently connected to an axial end of the radial fan impeller (24), the fan impeller serving to move air from the air inlet (76) to the air outlet (78). The radial fan impeller (24) is non-rotatably attached to the shaft (28) in the region of the axial end associated with the air inlet (76) and to the magnet carrier (40) in the region of the other axial end thereof. The blades (24) of the radial fan impeller are linked to one another by a ring (26) in the region of the air inlet (76). A molded piece (70) is provided with legs (74) in the manner of a table. An air inlet opening (76) is located on the table top (72) of this table-like molded piece (70) while an air outlet opening (78) is located between the legs (74) thereof, and said table-like molded piece (70) is arranged around the radial fan impeller (24).

Description

MINIATUR -RADIALLÜFTER MIT TISCHFÖRMIGEM GEHÄUSE  MINIATURE-RADIALLÜFTER WITH TABLE-WALL HOUSING
Die Erfindung betrifft einen Miniatur-Radiallüfter, wie er z.B. zur Erfassung von The invention relates to a miniature radial fan, as e.g. for the registration of
Temperaturwerten oder zur lokalen Kühlung Verwendung findet. Temperature values or for local cooling use.
Es ist eine Aufgabe der Erfindung, einen neuen Miniatur-Radiallüfter zur Verfügung zu stellen. It is an object of the invention to provide a new miniature radial fan.
Nach der Erfindung wird diese Aufgabe gelöst durch den Gegenstand des Anspruchs 1 . Man erhält so einen Lüfter, der sehr variabel ist, d.h. man hat einerseits einen Innenstator, der je nach Bedarf aus einer Vielzahl von Möglichkeiten ausgewählt werden kann, und man hat ein kombiniertes Bauteil aus Rotor des elektronisch kommutierten Motors und Radiallüfterrad, das mit wenigen Bauteilen eine große Vielzahl von Kombinationen ermöglicht, je nach den Bedürfnissen der augenblicklichen Anwendung. According to the invention, this object is achieved by the subject matter of claim 1. This gives a fan that is very variable, i. one has on the one hand an inner stator, which can be selected depending upon need from a multiplicity of possibilities, and one has a combined component from rotor of the electronically commutated engine and radial fan wheel, which allows with few components a large multiplicity of combinations, according to the needs of the instantaneous application.
Weitere Einzelheiten und vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den im folgenden beschriebenen und in der Zeichnung dargestellten, in keiner Weise als Einschränkung der Erfindung zu verstehenden Ausführungsbeispielen, sowie aus den Unteransprüchen. Es zeigt: Further details and advantageous developments of the invention will become apparent from the following described and illustrated in the drawings, in no way as a limitation of the invention to be understood embodiments, and from the dependent claims. It shows:
Fig. 1 ein erstes Ausführungsbeispiel mit einem Lüfter, der von einem einphasigen Fig. 1 shows a first embodiment with a fan that of a single-phase
elektronisch kommutierten Motor (ECM) angetrieben wird,  electronically commutated motor (ECM),
Fig. 2 ein zweites Ausführungsbeispiel mit einem einphasigen Antriebsmotor, 2 shows a second embodiment with a single-phase drive motor,
Fig. 3 ein drittes Ausführungsbeispiel mit einem dreiphasigen Antriebsmotor, 3 shows a third embodiment with a three-phase drive motor,
Fig. 4 eine Leiterplatte, auf welcher der Innenstator eines dreiphasigen Antriebsmotors befestigt ist, 4 shows a printed circuit board on which the inner stator of a three-phase drive motor is mounted,
Fig. 5 ein Formstück mit einem axialen Lufteinlass und radialen Luftauslässen, und Fig. 6 eine raumbildliche Darstellung eines Magnetträgers, an dem ein Magnetring angeordnet ist, und auf dem ein Radiallüfterrad befestigt ist. 5 shows a fitting with an axial air inlet and radial air outlets, and Fig. 6 is a three-dimensional view of a magnetic carrier on which a magnetic ring is arranged, and on which a radial fan is attached.
Fig . 1 zeigt, etwa im Maßstab 7 : 1 , also stark vergrößert, einen Miniatur-Radiallüfter 20. Typische Abmessungen eines solchen Miniaturlüfters sind, beispielhaft, 1 0 x 10 x 10 mm. Der Lüfter 20 hat ein Radiallüfterrad 22, das gemäß Fig . 6 fünf Lüfterflügel 24 hat, die an ihrem freien Ende durch einen Ring 26 verbunden sind und die an diesem freien Ende mit einer Welle 28 fest verbunden sind, die sich im Betrieb um eine Drehachse 30 dreht. Diese Welle 28 ist mittels Lagern 32, 34 in einem Lagerrohr 36 gelagert und dient zur drehbaren Lagerung des Lüfterrads 22 und eines mit diesem fest verbundenen, magnetisch leitenden Magnetträgers 40, in welchem ein Dauermagnetring 42 befestigt ist. Fig. FIG. 1 shows a miniature radial fan 20 approximately on a scale of 7: 1, ie greatly enlarged. Typical dimensions of such a miniature fan are, by way of example, 10 × 10 × 10 mm. The fan 20 has a radial fan 22, the as shown in FIG. 6 has five fan blades 24 which are connected at their free end by a ring 26 and which are fixedly connected at this free end with a shaft 28 which rotates in operation about an axis of rotation 30. This shaft 28 is mounted by means of bearings 32, 34 in a bearing tube 36 and serves for the rotatable mounting of the fan wheel 22 and a magnetically conductive magnet carrier 40 fixedly connected thereto, in which a permanent magnet ring 42 is fastened.
Die Lager 32, 34 können je nach den Anforderungen Gleitlager sein, die in das Lagerrohr 36 eingepresst sind und in welche die Welle 28 gesteckt wird, oder z.B. Miniatur- Kugellager, die ebenfalls in dem Lagerrohr 36 befestigt werden. Die Welle 28 dient also nicht zum Antrieb des Lüfterrads 22, sondern nur zu seiner Lagerung, und sie ist in den Lagern 32, 34 durch bloßes Einstecken leicht befestigbar. In diesen Lagern wird sie durch den sogenannten magnetischen Zug zwischen Permanentmagnetring 42 und Innenstator 60 sicher festgehalten. The bearings 32, 34 may, depending on requirements, be sliding bearings which are press-fitted into the bearing tube 36 and into which the shaft 28 is inserted, or e.g. Miniature ball bearings, which are also mounted in the bearing tube 36. The shaft 28 thus does not serve to drive the fan wheel 22, but only to its storage, and it is easily fastened in the bearings 32, 34 by mere insertion. In these camps it is securely held by the so-called magnetic train between permanent magnet ring 42 and inner stator 60.
Im Magnetträger 40 ist der Magnetring 42 befestigt, welcher zusammen mit dem In the magnet carrier 40 of the magnetic ring 42 is fixed, which together with the
Magnetträger 40 den Außenrotor 52 eines Außenläufer-Elektromotors 54 bildet. Der Magnetträger 40 geht über eine Schulter 56 aus Kunststoff in einen rohrförmigen Magnetic carrier 40 forms the outer rotor 52 of an external rotor electric motor 54. The magnetic carrier 40 passes through a shoulder 56 made of plastic in a tubular
Abschnitt 58 aus Kunststoff über. An diesem und an der Schulter 56 sind die in Fig. 1 unteren Enden der Flügel 24 befestigt, d.h. diese werden direkt vom Rotor 52 Section 58 made of plastic over. At this and at the shoulder 56, the lower ends of the wings 24 are fixed in Fig. 1, i. These are directly from the rotor 52
angetrieben, was eine sehr kompakte Bauweise ermöglicht. Das Lüfterrad 22 wird also in Fig. 1 an seinem unteren Ende angetrieben und durch die Welle 28 an seinem oberen Ende gelagert. driven, which allows a very compact design. The fan 22 is thus driven in Fig. 1 at its lower end and supported by the shaft 28 at its upper end.
Der Motor 54 hat einen Innenstator 60, der auf dem Lagerrohr 36 befestigt ist und dessen radial äußere Seite mit dem Dauermagnetring 42 einen magnetisch wirksamen Luftspalt bildet, in welchem das Drehmoment des Rotor 54 erzeugt wird, wie das dem Fachmann bekannt ist. The motor 54 has an inner stator 60 which is mounted on the bearing tube 36 and whose radially outer side forms with the permanent magnet ring 42 a magnetically active air gap, in which the torque of the rotor 54 is generated, as is known in the art.
Der Luftspalt könnte auch flach sein, wobei dann im Stator 60 eine sogenannte eisenlose Wicklung verwendet wird und der Dauermagnetring 42 meistens an der unteren Seite der Schulter 56 befestigt wird. Fig . 2 stimmt weitgehend mit Fig . 1 überein, weshalb in Fig . 2 dieselben Bezugszeichen verwendet werden wie in Fig. 1 . The air gap could also be flat, in which case a so-called ironless winding is used in the stator 60 and the permanent magnet ring 42 is usually fastened to the lower side of the shoulder 56. Fig. 2 largely agrees with FIG. 1, which is why in Fig. 2, the same reference numerals are used as in FIG. 1.
Zur Stromversorgung und Steuerung des Motors 54 dient in Fig . 1 und 2 eine H-Brücke 64, die zwei Anschlüsse 66, 68 für die Zufuhr einer Gleichspannung hat und diese in eine Spannung zum Betrieb des Motors 54 umformt. Die Kommutierung des Motors 54 kann sensorlos erfolgen, jedoch ist auch - wie dargestellt - die Verwendung eines For power supply and control of the motor 54 is used in FIG. 1 and 2, an H-bridge 64 has two terminals 66, 68 for the supply of a DC voltage and this transforms into a voltage for operating the motor 54. The commutation of the motor 54 may be sensorless, but is also - as shown - the use of a
Rotorstellungssensors 65 möglich, der die H-Brücke 64 steuert. (Dieser entfällt bei der sensorlosen Version.) Der H-Brücke 64 kann auch zur Steuerung der Drehzahl des Motors 54 an einem Eingang 67 (Fig. 2) ein PWM-Signal zugeführt werden, um z.B. die Drehzahl des Motors 54 zu steuern oder zu regeln. Z.B. kann bei niedrigen Temperaturen die Drehzahl des Motors 54 stark abgesenkt werden, um seine Lebensdauer zu erhöhen. Rotor position sensor 65 possible, which controls the H-bridge 64. (This is omitted in the sensorless version.) The H-bridge 64 may also be supplied with a PWM signal to control the speed of the motor 54 at an input 67 (Figure 2), e.g. to control or regulate the speed of the motor 54. For example, At low temperatures, the speed of the motor 54 can be lowered sharply to increase its life.
Das Lüfterrad 22 wird umgeben von einem Gehäuseteil 70, das in Fig . 5 perspektivisch dargestellt ist. Es hat etwa die Form eines Tisches mit einer Tischplatte 72, an der vier Tischbeine 74 befestigt sind. In der Tischplatte 72 befindet sich eine axiale The fan 22 is surrounded by a housing part 70, which in Fig. 5 is shown in perspective. It has approximately the shape of a table with a table top 72, are attached to the four legs 74. In the table top 72 is an axial
Zuströmöffnung 76, und zwischen den Beinen 74 befinden sich radiale Inflow opening 76, and between the legs 74 are radial
Ausströmöffnungen 78. Outflow openings 78.
Bei der Montage wird zunächst der Innenstator 60 auf einer Basisplatte 80 befestigt, wie das z. B. in Fig . 4 für den Innenstator 82 eines dreiphasigen Motors dargestellt ist. Dies kann z. B. dadurch geschehen, dass das Lagerrohr 36 auf der Basisplatte 80 aufgeklebt wird oder Bestandteil der Basisplatte ist. When mounting the inner stator 60 is first attached to a base plate 80, as the z. B. in Fig. 4 for the inner stator 82 of a three-phase motor is shown. This can be z. Example be done by the bearing tube 36 is glued to the base plate 80 or part of the base plate.
Wie Fig. 1 zeigt, wird dann das Gehäuseteil 70 von oben über das Lüfterrad 22 und den Motor 54 gestülpt und in geeigneter Weise an der (nur symbolisch angedeuteten) Basisplatte 80 befestigt, z.B. durch Einclipsen oder Kleben. As shown in Fig. 1, then the housing part 70 is slipped over the fan 22 and the motor 54 from above and suitably attached to the (only symbolically indicated) base plate 80, e.g. by clipping or gluing.
Wenn der Motor 54 läuft, wird das Lüfterrad 22 angetrieben und saugt durch die Öffnung 76 Luft an, wie durch die Pfeile 86 angedeutet. Diese Luft wird dann durch die radialen Öffnungen 78 nach außen gefördert und kann dort z.B. (nicht dargestellte) Bauteile kühlen, die auf der Basisplatte 80 angeordnet sind. When the motor 54 is running, the fan 22 is driven and sucks through the opening 76 air, as indicated by the arrows 86. This air is then conveyed out through the radial openings 78 and may there be e.g. Cool (not shown) components which are arranged on the base plate 80.
In der Öffnung 76 kann z. B. ein - nicht dargestellter - Temperatursensor befestigt werden, z. B. mittels eines Trägers, wie das dem Fachmann bekannt ist. Der Ring 26 bildet am Lüfterrad 22 eine Öffnung 90 (Fig. 6), durch welche die Luft im Betrieb durchströmt, wie durch die Pfeile 86 in Fig. 1 und 2 angedeutet. Im vorliegenden Fall kann - wie dargestellt - ein Einphasenmotor mit geblechtem Stator verwendet werden. Man kann aber z. B. auch einen Klauenpolmotor verwenden, dessen Aufbau dem Fachmann bekannt ist. In the opening 76 z. B. a - not shown - temperature sensor are attached, z. Example by means of a carrier, as is known in the art. The ring 26 forms on the impeller 22 an opening 90 (FIG. 6) through which the air flows during operation, as indicated by the arrows 86 in FIGS. 1 and 2. In the present case, as shown, a single stator motor with a laminated stator can be used. But you can z. B. also use a Klauenpolmotor whose structure is known in the art.
Fig . 3 zeigt einen Radiallüfter 20", der von einem dreiphasigen Motor 54" angetrieben wird. Zur Speisung des Motors 54" dient ein Dreiphasen-Wechselrichter 64", der mit seinen Anschlüssen 66, 68 an eine (nicht dargestellte) Gleichspannungsquelle Fig. Figure 3 shows a radial fan 20 "driven by a three-phase motor 54". To power the motor 54 "is a three-phase inverter 64", with its terminals 66, 68 to a (not shown) DC power source
angeschlossen werden kann. can be connected.
Ein Vorteil der Erfindung ist, dass durch das Formstück 70 der Rotor 52 gegen An advantage of the invention is that by the fitting 70, the rotor 52 against
Beschädigungen geschützt wird. Z. B. hat in Fig. 1 die Welle 28 einen Durchmesser von weniger als einem Millimeter, so dass sie durch Stöße leicht verbogen oder sonst wie beschädigt werden kann. Das Formstück 70 verhindert solche Beschädigungen Damage is protected. For example, in Fig. 1, the shaft 28 has a diameter of less than one millimeter, so that it may be easily bent or otherwise damaged by impact. The fitting 70 prevents such damage
weitgehend und ermöglicht auf einfache Weise einen sicheren Betrieb eines solchen Miniaturventilators, und es ermöglicht auch eine automatische Bestückung, da ohne das Formstück 70 der Motor leicht auf einer Leiterplatte montiert werden kann und danach das Formstück 70 problemlos um den Motor und Lüfter herum befestigt werden kann. largely and easily allows safe operation of such a miniature fan, and it also allows automatic assembly, since without the fitting 70, the motor can be easily mounted on a circuit board and then the fitting 70 can be easily attached around the motor and fan around ,
Die Figuren und die Beschreibung zeigen einen Lüfter, insbesondere einen Miniatur- Radiallüfter mit mindestens einem axialen Luft-Einlass 76 und mindestens einem radialen Luft-Auslass 78, mit einem zum Antrieb des Lüfters 22 dienenden elektronisch The figures and the description show a fan, in particular a miniature radial fan with at least one axial air inlet 76 and at least one radial air outlet 78, with a serving for driving the fan 22 electronically
kommutierten Außenläufermotor 54, dessen Rotor 52 eine Dauermagnetanordnung 42 aufweist, die an einem Magnetträger 40 angeordnet ist und mit einem Innenstator 60 zusammenwirkt, ferner mit einem Lagerrohr 36, in welchem eine Welle zur Lagerung eines Radiallüfterrads 24 gelagert ist, welche Welle 28 mit einem axialen Ende des Radiallüfterrades 24 fest verbunden ist, das dazu dient, Luft von dem mindestens einen axialen Luft-Einlass zu dem mindestens einen radialen Luft-Auslass 78 zu transportieren, und das Radiallüfterrad 24 im Bereich seines vom Luft-Einlass 76 abgewandten axialen Endes mit der Welle 28 und im Bereich seines anderen axialen Endes mit dem commutated external rotor motor 54, the rotor 52 has a permanent magnet assembly 42 which is disposed on a magnet carrier 40 and cooperates with an inner stator 60, further comprising a bearing tube 36 in which a shaft for supporting a radial fan 24 is mounted, which shaft 28 with an axial End of the radial fan 24 is connected, which serves to transport air from the at least one axial air inlet to the at least one radial air outlet 78, and the radial fan 24 in the region facing away from the air inlet 76 axial end with the Shaft 28 and in the area of its other axial end with the
Magnetträger 40 drehfest verbunden ist, ferner mit einem Ring 26, welcher die Flügel 24 des Radiallüfterrads 22 im Bereich des Luft-Einlasses 76 miteinander verbindet, und mit einem Formstück 70, welches nach Art eines Tisches mit Beinen 74 ausgebildet ist, wobei in der Tischplatte 72 dieses tischartigen Formstücks 70 mindestens eine Magnet carrier 40 is rotatably connected, further comprising a ring 26, which connects the wings 24 of the radial fan 22 in the region of the air inlet 76 with each other, and with a fitting 70 which is formed in the manner of a table with legs 74, wherein in the table top 72 of this table-shaped fitting 70 at least one
Lufteintrittsöffnung 76 und zwischen seinen Beinen 74 mindestens eine Air inlet opening 76 and between his legs 74 at least one
Luftaustrittsöffnung 78 angeordnet ist, und dieses tischartige Formstück 70 um das Radiallüfterrad 24 herum angeordnet ist. Bevorzugt ist der elektronisch kommutierte Elektromotor als Einphasenmotor 54 ausgebildet. Air outlet opening 78 is arranged, and this table-like fitting 70 is disposed around the radial fan 24 around. Preferably, the electronically commutated electric motor is designed as a single-phase motor 54.
Bevorzugt ist der elektronisch kommutierte Elektromotor als Dreiphasenmotor ausgebildet. Preferably, the electronically commutated electric motor is designed as a three-phase motor.
Bevorzugt weist der Elektromotor einen zylindrischen Luftspalt auf. Bevorzugt weist der Elektromotor 54 einen flachen Luftspalt auf. Bevorzugt ist der Innenstator 60 am Lagerrohr 36 befestigt. Preferably, the electric motor has a cylindrical air gap. Preferably, the electric motor 54 has a shallow air gap. Preferably, the inner stator 60 is attached to the bearing tube 36.
Bevorzugt ist dem elektronisch kommutierten Elektromotor 54 zu seiner Steuerung ein Rotorstellungssensor 65 zugeordnet. Preferably, a rotor position sensor 65 is associated with the electronically commutated electric motor 54 for its control.
Bevorzugt ist der Rotorstellungssensor 65 auf einem Trägerglied 80 angeordnet, auf welchem auch der Motor 54 angeordnet ist. Preferably, the rotor position sensor 65 is arranged on a carrier member 80, on which the motor 54 is arranged.
Naturgemäß sind im Rahmen der vorliegenden Erfindung vielfache Abwandlungen und Modifikationen möglich. Naturally, many modifications and modifications are possible within the scope of the present invention.

Claims

Patentansprüche claims
1 . Lüfter mit mindestens einem axialen Luft-Einlass (76) und mindestens einem 1 . Fan with at least one axial air inlet (76) and at least one
radialen Luft-Auslass (78),  radial air outlet (78),
mit einem zum Antrieb des Lüfters (22) dienenden elektronisch kommutierten Außenläufermotor (54), dessen Rotor (52) eine Dauermagnetanordnung (42) aufweist, die an einem Magnetträger (40) angeordnet ist und mit einem  with an electronically commutated external rotor motor (54) serving to drive the fan (22), the rotor (52) of which has a permanent magnet arrangement (42) which is arranged on a magnet carrier (40) and has a
Innenstator (60) zusammenwirkt,  Inner stator (60) cooperates,
ferner mit einem Lagerrohr (36), in welchem eine Welle zur Lagerung eines Radiallüfterrads (24) gelagert ist, welche Welle (28) mit einem axialen Ende des Radiallüfterrades (24) fest verbunden ist, das dazu dient, Luft von dem mindestens einen axialen Luft-Einlass zu dem mindestens einen radialen Luft-Auslass (78) zu transportieren,  further comprising a bearing tube (36) in which a shaft for supporting a radial fan wheel (24) is mounted, which shaft (28) is fixedly connected to an axial end of the radial fan wheel (24) serving to supply air from the at least one axial one To transport air inlet to the at least one radial air outlet (78),
und das Radiallüfterrad (24) im Bereich seines vom Luft-Einlass (76) abgewandten axialen Endes mit der Welle (28) und im Bereich seines anderen axialen Endes mit dem Magnetträger (40) drehfest verbunden ist,  and the radial fan (24) in the region of its axial end remote from the air inlet (76) with the shaft (28) and in the region of its other axial end with the magnet carrier (40) is rotatably connected,
ferner mit einem Ring (26), welcher die Flügel (24) des Radiallüfterrads (22) im Bereich des Luft-Einlasses (76) miteinander verbindet,  further comprising a ring (26) interconnecting the vanes (24) of the radial fan (22) in the region of the air inlet (76),
und mit einem Formstück (70), welches nach Art eines Tisches mit Beinen (74) ausgebildet ist, wobei in der Tischplatte (72) dieses tischartigen Formstücks (70) mindestens eine Lufteintrittsöffnung (76) und zwischen seinen Beinen (74) mindestens eine Luftaustrittsöffnung (78) angeordnet ist,  and with a shaped piece (70), which is formed in the manner of a table with legs (74), wherein in the table top (72) of this table-like shaped piece (70) at least one air inlet opening (76) and between its legs (74) at least one air outlet opening (78) is arranged,
und dieses tischartige Formstück (70) um das Radiallüfterrad (24) herum angeordnet ist.  and this table-like fitting (70) is disposed around the radial fan (24).
2. Lüfter nach Anspruch 1 , bei welchem der elektronisch kommutierte Elektromotor als Einphasenmotor (54) ausgebildet ist. 2. Fan according to claim 1, wherein the electronically commutated electric motor is designed as a single-phase motor (54).
3. Lüfter nach Anspruch 1 , bei welchem der elektronisch kommutierte Elektromotor als Dreiphasenmotor ausgebildet ist. Lüfter nach einem der vorhergehenden Ansprüche, bei welchem der Elektromotor einen zylindrischen Luftspalt aufweist. 3. Fan according to claim 1, wherein the electronically commutated electric motor is designed as a three-phase motor. Fan according to one of the preceding claims, wherein the electric motor has a cylindrical air gap.
Lüfter nach einem der Ansprüche 1 bis 3, bei welchem der Elektromotor (54) einen flachen Luftspalt aufweist. Fan according to one of claims 1 to 3, wherein the electric motor (54) has a flat air gap.
Lüfter nach einem der vorhergehenden Ansprüche, bei welchem der Innenstator (60) am Lagerrohr (36) befestigt ist. Fan according to one of the preceding claims, wherein the inner stator (60) is fixed to the bearing tube (36).
Lüfter nach einem der vorhergehenden Ansprüche, bei welchem dem elektronisch kommutierten Elektromotor (54) zu seiner Steuerung ein Rotorstellungssensor (65) zugeordnet ist. Fan according to one of the preceding claims, wherein the electronically commutated electric motor (54) is assigned to its control, a rotor position sensor (65).
Lüfter nach Anspruch 7, bei welchem der Rotorstellungssensor (65) auf einem Trägerglied (80) angeordnet ist, auf welchem auch der Motor (54) angeordnet ist. The fan of claim 7, wherein the rotor position sensor (65) is disposed on a support member (80) on which the motor (54) is also disposed.
Lüfter nach einem der vorhergehenden Ansprüche, welcher als Miniatur- Radiallüfter ausgebildet ist. Fan according to one of the preceding claims, which is designed as a miniature radial fan.
PCT/EP2012/072925 2011-11-26 2012-11-16 Miniature radial fan comprising a table-shaped housing WO2013076022A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011119792.7 2011-11-26
DE102011119792 2011-11-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113939658A (en) * 2019-06-13 2022-01-14 施乐百有限公司 Ventilator and method for determining the flow rate of a medium moved by a ventilator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005004092U1 (en) * 2004-03-30 2005-05-25 Ebm-Papst St. Georgen Gmbh & Co. Kg fan arrangement
DE202005015950U1 (en) * 2004-10-19 2006-01-05 Ebm-Papst St. Georgen Gmbh & Co. Kg Printed circuit board cooling device, has air directing unit provided on side of circular air passage opening at stretcher support frame and returning flow direction of part of air transported via opening
DE202008002356U1 (en) * 2008-02-19 2009-06-25 Ebm-Papst Mulfingen Gmbh & Co. Kg compact fans

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005004092U1 (en) * 2004-03-30 2005-05-25 Ebm-Papst St. Georgen Gmbh & Co. Kg fan arrangement
DE202005015950U1 (en) * 2004-10-19 2006-01-05 Ebm-Papst St. Georgen Gmbh & Co. Kg Printed circuit board cooling device, has air directing unit provided on side of circular air passage opening at stretcher support frame and returning flow direction of part of air transported via opening
DE202008002356U1 (en) * 2008-02-19 2009-06-25 Ebm-Papst Mulfingen Gmbh & Co. Kg compact fans

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113939658A (en) * 2019-06-13 2022-01-14 施乐百有限公司 Ventilator and method for determining the flow rate of a medium moved by a ventilator
CN113939658B (en) * 2019-06-13 2024-03-22 施乐百有限公司 Ventilator and method for determining a flow of a medium moved by a ventilator

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