EP0415076A2 - Suction cleaner - Google Patents

Suction cleaner Download PDF

Info

Publication number
EP0415076A2
EP0415076A2 EP90114232A EP90114232A EP0415076A2 EP 0415076 A2 EP0415076 A2 EP 0415076A2 EP 90114232 A EP90114232 A EP 90114232A EP 90114232 A EP90114232 A EP 90114232A EP 0415076 A2 EP0415076 A2 EP 0415076A2
Authority
EP
European Patent Office
Prior art keywords
motor
flow
cooling air
housing
components
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
Application number
EP90114232A
Other languages
German (de)
French (fr)
Other versions
EP0415076B1 (en
EP0415076A3 (en
Inventor
Rainer Oberdorfer-Bögel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WAP Reinigungssysteme GmbH and Co
Original Assignee
WAP Reinigungssysteme GmbH and Co
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 WAP Reinigungssysteme GmbH and Co filed Critical WAP Reinigungssysteme GmbH and Co
Publication of EP0415076A2 publication Critical patent/EP0415076A2/en
Publication of EP0415076A3 publication Critical patent/EP0415076A3/en
Application granted granted Critical
Publication of EP0415076B1 publication Critical patent/EP0415076B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers

Definitions

  • the invention relates to a vacuum cleaner with an electric motor, which is fastened between a lower carrier plate and an upper clamping plate, further with electrical or electronic components fastened to circuit boards in the flow housing and with an intake duct and an exhaust duct for the engine cooling air.
  • the invention is therefore based on the object of proposing such a vacuum cleaner which is distinguished in particular by a significantly increased service life of the electrical and electronic components.
  • the components should also be arranged in a housing in a space-saving and easily replaceable manner.
  • the invention is characterized in that when the electric motor is designed as a commutatorless DC motor, at least one of the boards with its components is arranged in the intake duct for the engine cooling air, the intake duct in runs essentially U-shaped with a first leg in the direction of flow, an adjoining horizontal section and an adjoining second leg which is connected airtight to the upper part of the electric motor.
  • circuit boards with their components can thus be accommodated in the first leg, in the horizontal section and / or in the second leg, and the engine cooling air flows directly through them and cools them well. They can also be easily replaced, as will be explained in more detail below.
  • the parts are also easy to replace.
  • the intake duct is placed with its one nozzle (first leg) on the already existing intake opening for the suction of the cooling air for the engine on the motor clamping plate and with the other nozzle (second leg) it is directly connected to the stator of the with the interposition of a sealing ring Motor attached and connected to it in an air-tight manner.
  • control electronics In the event of defects and repairs, the entire unit with the entire control electronics can be used. can be easily replaced.
  • the control electronics are fully located in the cooling air flow for the engine, upstream of the engine.
  • this also ensures that vacuum cleaners which have been in operation so far can be retrofitted with such a unit.
  • the existing AC motor simply has to be replaced by the new type of commutatorless DC motor, and the flow housing with the electronics integrated therein is then simply placed on the already existing motor chuck.
  • Each motor is then connected to such a flow housing, with the control of each motor being implemented separately via the circuit electronics arranged in the respective flow housing.
  • the motor-side socket of the housing with the electronics integrated on it is air-tight with the upper part, i.e. So is connected to the fixed winding part of the motor and that an outlet cross-section is formed around the motor in the clamping plate, so that this ensures that the cooling air is guided inward into the motor through the flow housing, flows through the motor to the Windings flow past, is diverted by approx. 1800 and flows out in the opposite direction to the incoming cooling air on the outside of the flow-through housing, appropriate sound insulation mats being arranged here in the outflow channel formed by the clamping plate and hood in order to dampen the engine noise.
  • this exhaust air / air flow is then discharged via labyrinth channels arranged in the hood of the vacuum cleaner.
  • corresponding protruding angles are provided on the side wall of the flow channel, which have bores through which screws pass, which screws are screwed into the top of the clamping plate.
  • angles in the flow housing itself can be integrated, the flow housing having, for example, bores in its base plate, through which screws can be screwed then also reach into the clamping plate.
  • An electric motor 31 is clamped in an easily replaceable manner between a lower carrier plate 32 and an upper clamping plate 33, the electric motor being held in a vibration-damped manner via rubber elements 34. From Figure 1, the turbine 35 of the vacuum cleaner can also be seen, which is placed directly below the actual electric motor 31.
  • the flow of the engine cooling air is indicated in FIG. 1 with MK, the flow of the engine exhaust air with MA, the flow of the suction supply air with SZ and the flow of the suction exhaust air with SA.
  • a flow housing 1 for the engine cooling air according to FIG. 3 is open at the top and has an upper edge 21.
  • the upper cover of this housing 1 with respect to the upper edge 21 is formed by the inside of the hood of the vacuum cleaner, not shown. This means that the housing 1 is closed on all sides and only has one connector 2 and the other connector 17.
  • the wall 19 which is approximately angled in plan view, is omitted and this wall 19 itself is formed by the wall of the hood or the clamping plate of the vacuum cleaner.
  • the flow-through housing 1 is only flowed through by the engine cooling air.
  • the turbine intake air and the turbine exhaust air are routed separately in the exhaust air ducts between the clamping plate and the carrier plate.
  • the present invention is therefore about the guidance of the engine cooling air and the arrangement of the electronic circuit parts in the area of this flow housing.
  • FIG 3 is shown schematically that the housing essentially (see Figure 4 and Figure 5) consists of two connecting pieces or legs 2, 17, which form a mutual distance from each other.
  • a heat sink 3 with cooling fins 4 is arranged in the connecting piece 2, transistors 8 being firmly connected to the heat sink 3 on the side faces of this heat sink.
  • This heat sink is thus fully in the flow of the intake cooling air, which enters the nozzle 2 in the direction of arrow 12 from below.
  • the cooling air occurs in several cross sections, namely once in the gap 9 between the heat sink 3 and the outer wall 19 of the housing, further in the gap 10 between the back of the heat sink 3 and the back of a circuit board 6 and further in the gap 11 between the front of the Board 6 and the inner wall of the connector 2.
  • the wall 19 can be omitted and appropriate sealing measures are then provided at position 22, because then in this area the connector 2 rests air-tight on the inside of the hood and the connector 2 on the one hand through the wall of the hood and on the other hand through remaining walls of the housing 1 is formed.
  • This board 15 essentially carries the mains rectifier 16 with heat sinks, cooling fins and the like. Components to be cooled more.
  • the air then flows in the direction of the arrow 18 and then flows into the nozzle 17, where the nozzle on its lower edge 23 is also air-tight is connected to the fixed part of the motor, so that the air in the direction of arrow 18 then flows through the winding of the motor.
  • the electronics to be cooled could also be arranged directly on the clamping plate and in the incoming cooling air flow of the motor.
  • appropriate electronic parts to be cooled can also be arranged in this area, such as, for. B. a mains interference filter, an automatic switch-on and switch-off for switching the vacuum motor on and off in the event of a fault, and an automatic switch-off for switching off a tool, which is then switched off when the vacuum cleaner falls below a certain minimum volume flow.

Abstract

A dust exhauster is described whose electric motor is designed as a commutatorless dc motor. The electrical and electronic components of the dust exhauster are positioned according to the invention within the motor cooling air intake channel. Consequently, they are directly cooled by the stream of cooling air, resulting in a substantially extended service life for these components. Furthermore, the motor with its components is relatively small in design.

Description

Die Erfindung betrifft einen Schmutzsauger mit einem Elektromotor, der zwischen einer unteren Trägerplatte und einer oberen Spannplatte befestigt ist, ferner mit auf Platinen im Durchflußgehäuse befestigten elektrischen bzw. elektronischen Bauelementen und mit einem Ansaugkanal und einem Abluftkanal für die Motorkühlluft.The invention relates to a vacuum cleaner with an electric motor, which is fastened between a lower carrier plate and an upper clamping plate, further with electrical or electronic components fastened to circuit boards in the flow housing and with an intake duct and an exhaust duct for the engine cooling air.

Derartige Schmutzsauger sind bekannt. Die Elektromotoren sind hierbei als asynchron-Motoren ausgebildet. Sie benötigen daher eine verhältnismäßig große Leistungselektronik und Ansteuerelektronik, die üblicherweise auf zwei getrennten Platinen im Euro-Format untergebracht waren. Bedingt durch diese Größe war es nicht möglich, die Platinen mit ihren Bauelementen unmittelbar im Kühlluftstrom für die Motorkühlung unterzubringen. Die Bauelemente haben sich also verhältnismäßig schnell und stark erwärmt, worunter wiederum ihre Lebensdauer fühlbar gelitten hat.Such vacuum cleaners are known. The electric motors are designed as asynchronous motors. You therefore need a relatively large power electronics and control electronics, which were usually housed on two separate boards in Euro format. Due to this size, it was not possible to accommodate the circuit boards with their components directly in the cooling air flow for engine cooling. The components have warmed up relatively quickly and strongly, which in turn has noticeably affected their lifespan.

Der Erfindung liegt daher die Aufgabe zugrunde, einen derartigen Schmutzsauger vorzuschlagen, der sich insbesondere durch eine wesentlich erhöhte Lebensdauer der elektrischen und elektronischen Bauelemente auszeichnet. Auch sollen die Bauelemente platzsparend und leicht auswechselbar in einem Gehäuse angeordnet sein.The invention is therefore based on the object of proposing such a vacuum cleaner which is distinguished in particular by a significantly increased service life of the electrical and electronic components. The components should also be arranged in a housing in a space-saving and easily replaceable manner.

Zur Lösung dieser Aufgabe ist die Erfindung dadurch gekennzeichnet, daß bei Ausbildung des Elektromotors als kommutatorloser Gleichstrommotor wenigstens eine der Platinen mit ihren Bauelementen in dem Ansaugkanal für die Motorkühlluft angeordnet ist, wobei der Ansaugkanal im wesentlichen U-förmig verläuft mit einem in Strömungsrichtung ersten Schenkel, einem sich daran anschließenden waagerechten Abschnitt und einem sich daran anschließenden zweiten Schenkel, der luftdicht an das Oberteil des Elektromotors angeschlossen ist.To achieve this object, the invention is characterized in that when the electric motor is designed as a commutatorless DC motor, at least one of the boards with its components is arranged in the intake duct for the engine cooling air, the intake duct in runs essentially U-shaped with a first leg in the direction of flow, an adjoining horizontal section and an adjoining second leg which is connected airtight to the upper part of the electric motor.

Man kann somit die Platinen mit ihren Bauelementen im ersten Schenkel, im waagerechten Abschnitt und/oder im zweiten Schenkel unterbringen und sie werden dort unmittelbar von der Motorkühlluft durchströmt und gut gekühlt. Sie können auch leicht ausgewechselt werden, wie dies weiter unten noch näher erläutert wird.The circuit boards with their components can thus be accommodated in the first leg, in the horizontal section and / or in the second leg, and the engine cooling air flows directly through them and cools them well. They can also be easily replaced, as will be explained in more detail below.

Die Verwendung des kommutatorlosen Gleichstrommotors anstelle der sonst verwendeten asynchron-Motoren bringt den Vorteil mit sich, daß ein wesentlich kleinerer Elektromotor verwendet werden kann, der aufgrund seines geringeren Gewichts ein anderes Schwingungsverhalten hat und eine Leistungsansteuerung mit Platinen benötigt, die wesentlich kleiner sind als die herkömmlichen Platinen für die Leistungsansteuerung von asynchron-Motoren. Diese Merkmale zusammen ergeben also die Möglichkeit, die Platinen jetzt direkt in der Motorkühlluft anzuordnen, wodurch sich die angestrebte wesentliche Verlängerung der Lebensdauer dieser Bauteile ergibt.The use of the commutatorless DC motor instead of the otherwise used asynchronous motors has the advantage that a much smaller electric motor can be used, which has a different vibration behavior due to its lower weight and requires power control with boards that are much smaller than the conventional ones Boards for the power control of asynchronous motors. Together, these features result in the possibility of arranging the boards directly in the engine cooling air, which results in the desired substantial extension of the service life of these components.

Die Teile sind auch leicht auswechselbar.The parts are also easy to replace.

Zur Montage wird der Ansaugkanal mit seinem einen Stutzen (ersten Schenkel) auf die bereits vorhandene Ansaugöffnung für die Ansaugung der Kühlluft für den Motor auf die Motorspannplatte aufgesetzt und mit dem anderen Stutzen (zweiten Schenkel) wird er unter Zwischenschaltung eines Dichtungsringes unmittelbar auf den Stator des Motors aufgesetzt und luftschlüssig mit diesem verbunden.For assembly, the intake duct is placed with its one nozzle (first leg) on the already existing intake opening for the suction of the cooling air for the engine on the motor clamping plate and with the other nozzle (second leg) it is directly connected to the stator of the with the interposition of a sealing ring Motor attached and connected to it in an air-tight manner.

Bei eventuellen Defekten und Reparaturfällen kann somit die gesamte Einheit mit der gesamten Steuerungselektronik. leicht ausgewechselt werden. Die Steuerungselektronik ist voll im Kühlluftstrom für den Motor angeordnet, und zwar stromaufwärts des Motors.In the event of defects and repairs, the entire unit with the entire control electronics can be used. can be easily replaced. The control electronics are fully located in the cooling air flow for the engine, upstream of the engine.

Wesentlich hierbei ist, daß wegen der Integration der gesamten Steuerelektronik und aller elektrischen Versorgungsbauteile nur wenige Kabelzuführungen notwendig sind. Im Prinzip bedarf es nur einer zweiadrigen Leitung zur Wechselstromzuführung und einer zweiadrigen Leitung zur Stromversorgung für die Wicklung des Motors sowie einer weiteren Steuerleitung für die Zuführung der entsprechenden Steuersignale zum elektronisch geregelten Motor.It is essential here that only a few cable feeds are necessary because of the integration of the entire control electronics and all electrical supply components. In principle, all that is required is a two-wire line for the AC supply and a two-wire line for the power supply for the winding of the motor and a further control line for the supply of the corresponding control signals to the electronically controlled motor.

Auch damit ist die leichte Auswechselbarkeit des gesamten Durchflußgehäuses gewährleistet.This also ensures that the entire flow housing is easy to replace.

Wegen des kompakten Aufbaus dieses Durchflußgehäuses ist damit auch gewährleistet, daß bisher im Betrieb befindliche Staubsauger mit einer derartigen Einheit nachgerüstet werden können.Because of the compact design of this flow-through housing, this also ensures that vacuum cleaners which have been in operation so far can be retrofitted with such a unit.

Hierzu muß einfach der bereits vorhandene Wechselstrommotor gegen den neuartigen kommutatorlosen Gleichstrommotor ausgetauscht werden und es wird dann auf die bereits konstruktiv vorhandene Motorspannplatte einfach das Durchflußgehäuse mit der darin integrierten Elektronik aufgesetzt.For this purpose, the existing AC motor simply has to be replaced by the new type of commutatorless DC motor, and the flow housing with the electronics integrated therein is then simply placed on the already existing motor chuck.

Eine gleiche Ausrüstung mit dem beschriebenen Durchflußgehäuse gilt nicht nur für eine Ein-Motorausführung sondern auch für Staubsauger, die mehrere parallel nebeneinander und getrennt voneinander betriebene Motoren aufweisen.The same equipment with the flow housing described applies not only to a single-motor version but also to vacuum cleaners which have several motors which are operated in parallel next to one another and separately from one another.

Jeder Motor wird dann mit einem derartigen Durchflußgehäuse verbunden, wobei die Steuerung von jedem Motor separat über die in dem jeweiligen Durchflußgehäuse angeordnete Schaltungselektronik verwirklicht wird.Each motor is then connected to such a flow housing, with the control of each motor being implemented separately via the circuit electronics arranged in the respective flow housing.

Wichtig hierbei ist, daß der motorseitige Stutzen des Gehäuses mit der daran integrierten Elektronik luftschlüssig mit dem oberen Teil, d.h. also mit dem feststehenden Wicklungsteil des Motors verbunden ist und daß rings um den Motor in der Spannplatte noch ein Auslaßquerschnitt gebildet ist, so daß hierdurch gewährleistet ist, daß über das Durchflußgehäuse die Kühlluft nach innen in den Motor geführt wird, den Motor durchströmt, an den Wicklungen vorbei strömt, um ca. 1800 umgelenkt wird und in Gegenrichtung zur einströmenden Kühlluft an der Außenseite des Durchflußgehäuses herausströmt, wobei hier im von Spannplatte und Haube gebildeten Ausströmkanal entsprechende Schalldämmatten angeordnet sind, um das Motorgeräusch zu dämpfen.It is important here that the motor-side socket of the housing with the electronics integrated on it is air-tight with the upper part, i.e. So is connected to the fixed winding part of the motor and that an outlet cross-section is formed around the motor in the clamping plate, so that this ensures that the cooling air is guided inward into the motor through the flow housing, flows through the motor to the Windings flow past, is diverted by approx. 1800 and flows out in the opposite direction to the incoming cooling air on the outside of the flow-through housing, appropriate sound insulation mats being arranged here in the outflow channel formed by the clamping plate and hood in order to dampen the engine noise.

In an sich bekannter Weise wird dann dieser Abluft-Luftstrom über in der Haube des Schmutzsaugers angeordnete Labyrinthkanäle abgeführt.In a manner known per se, this exhaust air / air flow is then discharged via labyrinth channels arranged in the hood of the vacuum cleaner.

Die Befestigung des genannten Durchflußkanals erfolgt lediglich mit zwei Schrauben.The above-mentioned flow channel is only attached with two screws.

In einer ersten Ausführungsform kann hierbei vorgesehen sein, daß an der Seitenwand des Durchflußkanals entsprechende abstehende Winkel vorgesehen sind, welche Bohrungen aufweisen, die von Schrauben durchgriffen werden, welche Schrauben in die Oberseite der Spannplatte eingeschraubt sind.In a first embodiment it can be provided that corresponding protruding angles are provided on the side wall of the flow channel, which have bores through which screws pass, which screws are screwed into the top of the clamping plate.

Ebenso können die Winkel im Durchflußgehäuse selbst integriert werden, wobei das Durchflußgehäuse z.B. in seiner Bodenplatte Bohrungen aufweist, durch welche Schrauben hindurchgeschraubt werden können, die dann ebenfalls in die Spannplatte hineingreifen.Likewise, the angles in the flow housing itself can be integrated, the flow housing having, for example, bores in its base plate, through which screws can be screwed then also reach into the clamping plate.

Es handelt sich also um eine leicht lösbare Befestigung, weil - wie gesagt - dieses Durchflußgehäuse lediglich auf der einen Seite auf dem Ansauggitter der Spannplatte für die Ansaugung des Kühlluftstromes aufgesetzt wird und auf der anderen Seite - wie beschrieben - luftschlüssig mit dem feststehenden Teil des Motors verbunden wird.It is therefore an easily detachable attachment because - as I said - this flow housing is only placed on one side on the intake grille of the clamping plate for the intake of the cooling air flow and on the other side - as described - air-tight with the fixed part of the engine is connected.

Die Erfindung wird im folgenden anhand von Ausführungsbeispielen näher erläutert, aus denen sich weitere wichtige Merkmale ergeben.The invention is explained in more detail below on the basis of exemplary embodiments, from which further important features result.

Es zeigen:

  • Figur 1: eine Schnittansicht durch die hier interessierenden wesentlichen Bauteile eines Schmutzsaugers nach der Erfindung in einem Schnitt längs der Linie A-B von Figur 2;
  • Figur 2: eine Draufsicht auf Figur 1, wobei zur Verdeutlichung Teile fortgelassen wurden;
  • Figur 3: eine Schnittansicht entsprechend der Figur 1 bei einer etwas abgewandelten Ausführungsform zur Erläuterung von Einzelheiten;
  • Figur 4: eine Draufsicht auf Figur 3;
  • Figur 5: eine Ansicht entsprechend Figur 4 bei einer abermals abgewandelten Ausführungsform.
Show it:
  • 1 shows a sectional view through the essential components of interest here of a vacuum cleaner according to the invention in a section along the line AB of FIG. 2;
  • Figure 2 is a plan view of Figure 1, with parts omitted for clarity;
  • Figure 3 is a sectional view corresponding to Figure 1 in a slightly modified embodiment to explain details;
  • Figure 4 is a plan view of Figure 3;
  • Figure 5: a view corresponding to Figure 4 in another modified embodiment.

Zunächst sei der grundsätzliche Aufbau der hier interessierenden wesentlichen Teile des Schmutzsaugers nach der Erfindung anhand der Figuren 1 und 2 erläutert.First of all, the basic structure of the essential parts of the vacuum cleaner according to the invention that are of interest here is explained with reference to FIGS. 1 and 2.

In einem Gehäuse ist ein Elektromotor 31 zwischen einer unteren Trägerplatte 32 und einer oberen Spannplatte 33 leicht auswechselbar eingespannt, wobei der Elektromotor über Gummielemente 34 schwingungsgedämpft gehalten ist. Aus Figur 1 ist auch noch die Turbine 35 des Schmutzsaugers ersichtlich, die direkt unten auf den eigentlichen Elektromotor 31 aufgesetzt ist.An electric motor 31 is clamped in an easily replaceable manner between a lower carrier plate 32 and an upper clamping plate 33, the electric motor being held in a vibration-damped manner via rubber elements 34. From Figure 1, the turbine 35 of the vacuum cleaner can also be seen, which is placed directly below the actual electric motor 31.

Die Strömung der Motorkühlluft ist in Figur 1 mit MK angegeben, die Strömung der Motorabluft mit MA, die Strömung der Saugzuluft mit SZ und die Strömung der Saugabluft mit SA.The flow of the engine cooling air is indicated in FIG. 1 with MK, the flow of the engine exhaust air with MA, the flow of the suction supply air with SZ and the flow of the suction exhaust air with SA.

Ein Durchflußgehäuse 1 für die Motorkühlluft entsprechend Figur 3 ist oben offen und weist einen oberen Rand 21 auf. Die obere Abdeckung dieses Gehäuses 1 bezüglich des oberen Randes 21 wird durch die Innenseite der nicht näher dargestellten Haube des Schmutzsaugers gebildet. Das heißt, das Gehäuse 1 ist also an allen Seiten geschlossen und weist lediglich den einen Stutzen 2 und den anderen Stutzen 17 auf.A flow housing 1 for the engine cooling air according to FIG. 3 is open at the top and has an upper edge 21. The upper cover of this housing 1 with respect to the upper edge 21 is formed by the inside of the hood of the vacuum cleaner, not shown. This means that the housing 1 is closed on all sides and only has one connector 2 and the other connector 17.

Zur Vereinfachung der Gehäusekonstruktion des Gehäuses 1 kann es hierbei auch vorgesehen sein, daß die in Draufsicht etwa abgewinkelte Wandung 19 entfällt und diese Wandung 19 selbst durch die Wandung der Haube oder der Spannplatte des Schmutzsaugers gebildet wird.To simplify the housing construction of the housing 1, it can also be provided that the wall 19, which is approximately angled in plan view, is omitted and this wall 19 itself is formed by the wall of the hood or the clamping plate of the vacuum cleaner.

Das Durchflußgehäuse 1 wird nur von der Motorkühlluft durchströmt. Die Turbinenansaugluft und die Turbinenabluft werden getrennt in den Abluftkanälen zwischen Spannplatte und Trägerplatte geführt.The flow-through housing 1 is only flowed through by the engine cooling air. The turbine intake air and the turbine exhaust air are routed separately in the exhaust air ducts between the clamping plate and the carrier plate.

Bei der vorliegenden Erfindung geht es also um die Führung der Motorkühlluft und um die Anordnung der elektronischen Schaltungsteile im Bereich dieses Durchflußgehäuses.The present invention is therefore about the guidance of the engine cooling air and the arrangement of the electronic circuit parts in the area of this flow housing.

In Figur 3 ist schematisiert dargestellt, daß das Gehäuse im wesentlichen (vergleiche Figur 4 und Figur 5) aus zwei Stutzen oder Schenkeln 2, 17 besteht, die einen gegenseitigen Abstand voneinander bilden.In Figure 3 is shown schematically that the housing essentially (see Figure 4 and Figure 5) consists of two connecting pieces or legs 2, 17, which form a mutual distance from each other.

Im Stutzen 2 ist hierbei ein Kühlkörper 3 mit Kühlrippen 4 angeordnet, wobei an den Seitenflächen dieses Kühlkörpers Transistoren 8 fest mit dem Kühlkörper 3 verbunden sind. Dieser Kühlkörper liegt also voll im Durchfluß der angesaugten Kühlluft, die in Pfeilrichtung 12 von unten in den Stutzen 2 eintritt.In this case, a heat sink 3 with cooling fins 4 is arranged in the connecting piece 2, transistors 8 being firmly connected to the heat sink 3 on the side faces of this heat sink. This heat sink is thus fully in the flow of the intake cooling air, which enters the nozzle 2 in the direction of arrow 12 from below.

Die Kühlluft tritt hierbei in mehreren Querschnitten ein, nämlich einmal im Spalt 9 zwischen dem Kühlkörper 3 und der Außenwandung 19 des Gehäuses, ferner im Spalt 10 zwischen der Rückseite des Kühlkörpers 3 und der Rückseite einer Platine 6 und ferner im Spalt 11 zwischen der Vorderseite der Platine 6 und der inneren Wandung des Stutzens 2.The cooling air occurs in several cross sections, namely once in the gap 9 between the heat sink 3 and the outer wall 19 of the housing, further in the gap 10 between the back of the heat sink 3 and the back of a circuit board 6 and further in the gap 11 between the front of the Board 6 and the inner wall of the connector 2.

Es kann die Wandung 19 entfallen und dann sind bei Position 22 entsprechende Abdichtmaßnahmen vorgesehen, weil dann in diesem Bereich der Stutzen 2 luftschlüssig an der Innenseite der Haube anliegt und der Stutzen 2 einerseits durch die Wandung der Haube und andererseits durch noch verbleibende Wandungen des Gehäuses 1 gebildet wird.The wall 19 can be omitted and appropriate sealing measures are then provided at position 22, because then in this area the connector 2 rests air-tight on the inside of the hood and the connector 2 on the one hand through the wall of the hood and on the other hand through remaining walls of the housing 1 is formed.

Nach dem Durchströmen der Luft in Pfeilrichtung 12 wird die Luft an der Oberseite des Stutzens in Pfeilrichtung 14 umgelenkt und strömt dann parallel zu einer Bodenplatte 13, wo eine weitere Platine 15 angeordnet ist. Diese Platine 15 trägt im wesentlichen den Netzgleichrichter 16 mit Kühlkörpern, Kühlrippen und dergl. zu kühlenden Bauteilen mehr.After the air has flowed through in the direction of the arrow 12, the air is deflected at the top of the nozzle in the direction of the arrow 14 and then flows parallel to a base plate 13, where a further plate 15 is arranged. This board 15 essentially carries the mains rectifier 16 with heat sinks, cooling fins and the like. Components to be cooled more.

Die Luft strömt dann in Pfeilrichtung 18 weiter und strömt dann in den Stutzen 17 ein, wo der Stutzen an seiner Unterkante 23 luftschlüssig mit dem festen Teil des Motors verbunden ist, so daß die Luft in Pfeilrichtung 18 dann die Wicklung des Motorsdurch strömt.The air then flows in the direction of the arrow 18 and then flows into the nozzle 17, where the nozzle on its lower edge 23 is also air-tight is connected to the fixed part of the motor, so that the air in the direction of arrow 18 then flows through the winding of the motor.

Es ist ersichtlich, daß im wesentlichen alle Elektronikbauteile im Bereich des Durchflußgehäuses angeordnet sind.It can be seen that essentially all electronic components are arranged in the area of the flow housing.

Die zu kühlende Elektronik könnte auch direkt auf der Spannplatte angeordnet sein und im zulaufenden Kühlluftstrom des Motors liegen.The electronics to be cooled could also be arranged directly on the clamping plate and in the incoming cooling air flow of the motor.

Es ist auch möglich, außerhalb des Durchflußgehäuses entsprechende Elektronikbauteile anzuordnen.It is also possible to arrange appropriate electronic components outside of the flow housing.

Nachdem es vorgesehen ist, daß die vom Motor ausströmende Abluft im Zwischenraum zwischen der Spannplatte und der Haube geführt wird, können in diesem Bereich noch entsprechende zu kühlende Elektronikteile angeordnet werden wie z. B. ein Netz-Entstörfilter, eine Ein- und Abschaltautomatik für die Ein- und Ausschaltung des Saugermotors im Störfall sowie eine Abschaltautomatik für die Abschaltung eines Werkzeuges, welches dann abgeschaltet wird, wenn der Schmutzsauger einen bestimmten Mindest-Volumenstrom unterschreitet.After it is provided that the exhaust air flowing out of the engine is guided in the space between the clamping plate and the hood, appropriate electronic parts to be cooled can also be arranged in this area, such as, for. B. a mains interference filter, an automatic switch-on and switch-off for switching the vacuum motor on and off in the event of a fault, and an automatic switch-off for switching off a tool, which is then switched off when the vacuum cleaner falls below a certain minimum volume flow.

Das heißt also, diese Bauteile sind sehr einfach auf der Trägerplatte anzuordnen und werden trotzdem noch von dem Abluftstrom des Motors ausreichend gekühlt.This means that these components are very easy to arrange on the carrier plate and are still sufficiently cooled by the exhaust air flow from the engine.

Eingangs wurde der hohe Integrationsgrad der Steuerelektronik für den Staubsauger erwähnt und daß im wesentlichen alle Elektronikbauteile für die Stromversorgung und Steuerung des Motors in diesem Durchzugkanal angeordnet sind. Damit ergeben sich aber auch bei der Montage und Prüfung wesentliche Vorteile, denn es kann eine separate Montagelinie eingerichtet werden für die Montage sämtlicher Elektronikbauteile.The high degree of integration of the control electronics for the vacuum cleaner was mentioned and that essentially all electronic components for the power supply and control of the motor are arranged in this pull-through channel. However, this also results in significant advantages during assembly and testing, because a separate assembly line can be set up for the assembly of all electronic components.

Die Anordnung von derartigen Durchflußgehäusen, wie vorstehend beschrieben, ist nicht nur für Staubsauger mit einem Motor verwendbar, sondern auch für Großstaubsauger möglich, bei denen eine Reihe von Motoren, z. B. am Umfang eines Kreises, angeordnet sind. Sternförmig hierzu radial auswärts gestellt sind dann die beschriebenen Durchflußgehäuse entsprechend der Lehre der vorliegenden Erfindung angeordnet.The arrangement of such flow housings, as described above, can be used not only for vacuum cleaners with a motor, but also for large vacuum cleaners in which a number of motors, e.g. B. are arranged on the circumference of a circle. The flow housings described are then arranged in a star shape radially outward in accordance with the teaching of the present invention.

ZEICHNUNGS-LEGENDEDRAWING LEGEND

  • 1 Durchflußgehäuse1 flow housing
  • 2 Stutzen2 sockets
  • 3 Kühlkörper3 heat sinks
  • 4 Kühlrippen4 cooling fins
  • 5 Schrauben5 screws
  • 6 Platine6 circuit board
  • 7 Schaltungsbauteile7 circuit components
  • 8 Transistoren8 transistors
  • 9 Spalt9 gap
  • 10 Spalt10 gap
  • 11 Spalt11 gap
  • 12 Pfeilrichtung12 arrow direction
  • 13 Bodenplatte13 base plate
  • 14 Pfeilrichtung14 arrow direction
  • 15 Platine15 circuit board
  • 16 Netzgleichrichter16 line rectifier
  • 17 Stutzen17 sockets
  • 18 Pfeilrichtung18 arrow direction
  • 19 Wandung (kann wegfallen)19 wall (can be omitted)
  • 20 Befestigungswinkel20 mounting brackets
  • 21 Rand21 rand
  • 22 Position22 position
  • 23 Unterkante23 lower edge
  • 31 E-Motor31 electric motor
  • 32 Trägerplatte32 carrier plate
  • 33 Spannplatte33 clamping plate
  • 34 Gummielemente34 rubber elements
  • 35 Turbine35 turbine

Claims (1)

Schmutzsauger mit einem Elektromotor, der zwischen einer unteren Trägerplatte und einer oberen Spannplatte befestigt ist, ferner mit auf Platinen im Durchflußgehäuse befestigten elektrischen bzw. elektronischen Bauelementen und mit einem Ansaugkanal und einem Abluftkanal für die Motorkühlluft, dadurch gekenn­zeichnet, daß bei Ausbildung des Elektromotors als kommutatorloser Gleichstrommotor wenigstens eine der Platinen (6,15) mit ihren Bauelementen (7,16) in dem Ansaugkanal (17) für die Motorkühlluft angeordnet ist, wobei der Ansaugkanal im wesentlichen U-förmig verläuft mit einem in Strömungsrichtung ersten Schenkel (2), einem sich daran anschließenden waagerechten Abschnitt (13) und einem sich daran anschließenden zweiten Schenkel (17), der luftdicht an das Oberteil des Elektromotors (31) angeschlossen ist.Vacuum cleaner with an electric motor, which is fastened between a lower support plate and an upper clamping plate, further with electrical or electronic components fastened on circuit boards in the flow-through housing and with an intake duct and an exhaust air duct for the engine cooling air, characterized in that when the electric motor is designed as a non-commutator DC motor at least one of the plates (6, 15) with its components (7, 16) is arranged in the intake duct (17) for the engine cooling air, the intake duct being essentially U-shaped with a first leg (2) in the flow direction, one adjoining horizontal section (13) and an adjoining second leg (17) which is connected airtight to the upper part of the electric motor (31).
EP90114232A 1989-08-26 1990-07-25 Suction cleaner Expired - Lifetime EP0415076B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928313 1989-08-26
DE3928313A DE3928313A1 (en) 1989-08-26 1989-08-26 DIRT CLEANER

Publications (3)

Publication Number Publication Date
EP0415076A2 true EP0415076A2 (en) 1991-03-06
EP0415076A3 EP0415076A3 (en) 1992-06-03
EP0415076B1 EP0415076B1 (en) 1995-01-11

Family

ID=6387987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114232A Expired - Lifetime EP0415076B1 (en) 1989-08-26 1990-07-25 Suction cleaner

Country Status (7)

Country Link
US (1) US5068555A (en)
EP (1) EP0415076B1 (en)
JP (1) JPH0724644B2 (en)
KR (1) KR0146362B1 (en)
AT (1) ATE116825T1 (en)
BR (1) BR9004193A (en)
DE (2) DE3928313A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510597A1 (en) * 1991-04-22 1992-10-28 Hitachi, Ltd. Electric vacuum cleaner
WO2010042563A2 (en) * 2008-10-06 2010-04-15 Shop Vac Corporation Vacuum assembly for automobile
WO2017137329A1 (en) * 2016-02-09 2017-08-17 Arcelik Anonim Sirketi A vacuum cleaner with improved operational performance
EP3398498A1 (en) * 2017-05-02 2018-11-07 TROTEC GmbH & Co. KG Device for insulating layer drying
EP3409166A1 (en) * 2017-05-29 2018-12-05 BSH Hausgeräte GmbH Exhaust channel for a vacuum cleaner and vacuum cleaner comprising this exhaust channel

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245237A (en) * 1992-03-19 1993-09-14 General Electric Company Two compartment motor
US5353469A (en) * 1992-07-01 1994-10-11 National Super Service Company Wet/dry vacuum cleaner with noise reducing housing structure
US5479676A (en) * 1994-05-12 1996-01-02 Electrolux Corporation Vacuum cleaner
US5813085A (en) * 1997-02-25 1998-09-29 White Consolidated Industries, Inc. Motor isolation gasket for central vacuum
US6003200A (en) * 1997-11-14 1999-12-21 Overhead Door Corporation Powerhead housing assembly for vacuum cleaner
DE29805994U1 (en) * 1998-04-02 1999-06-17 Wap Reinigungssysteme Electronically commutated motor for scrubber driers
US6155801A (en) * 1999-03-18 2000-12-05 Elnar; Joseph G. Air blower assembly for spas
AU2003215456A1 (en) 2002-03-12 2003-09-22 Cube Investments Limited Suction motor for vacuum cleaner
US6856113B1 (en) 2004-05-12 2005-02-15 Cube Investments Limited Central vacuum cleaning system motor control circuit mounting post, mounting configuration, and mounting methods
CA2580282C (en) 2004-09-17 2014-04-15 Cube Investments Limited Cleaner handle and cleaner handle housing sections
US7199496B2 (en) * 2005-01-18 2007-04-03 Oriental Motor Boston Technology Group Incorporated Integrated electric motor and drive, optimized for high-temperature operation
US7900315B2 (en) * 2005-10-07 2011-03-08 Cube Investments Limited Integrated central vacuum cleaner suction device and control
CA2562810C (en) * 2005-10-07 2015-12-08 Cube Investments Limited Central vacuum cleaner multiple vacuum source control
CA2562804C (en) 2005-10-07 2014-12-09 Cube Investments Limited Vacuum cleaner cross-control
US7690075B2 (en) 2005-10-07 2010-04-06 Cube Investments Limited Central vacuum cleaner control, unit and system with contaminant sensor
US20090126146A1 (en) * 2007-10-03 2009-05-21 Overvaag Chad D Vacuum cleaner with heat sink in air path
JP5425596B2 (en) * 2009-11-20 2014-02-26 カルソニックカンセイ株式会社 Motor damping structure of actuator device
US10085606B2 (en) 2013-04-08 2018-10-02 Emerson Electric Co. Systems and apparatuses for cooling a vacuum device
US10164505B2 (en) * 2016-01-19 2018-12-25 Nidec Motor Corporation Forced air cooling of vacuum motor control

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099466A1 (en) * 1982-07-06 1984-02-01 WAP Reinigungssysteme GmbH & Co. Suction apparatus for dirt
DE8704712U1 (en) * 1987-03-31 1987-10-08 Zubler Geraetebau Gmbh, 7910 Neu-Ulm, De
DE8704717U1 (en) * 1987-03-31 1988-02-25 Zubler Geraetebau Gmbh, 7910 Neu-Ulm, De

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1497396A (en) * 1965-10-28 1967-10-06 Gen Electric Improvements to vacuum cleaners
DE1588432A1 (en) * 1967-04-07 1970-05-21 Licentia Gmbh Electric motor controlled by semiconductor
DE1905624C3 (en) * 1969-02-05 1978-07-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Dental drill handpiece
JPS4730208U (en) * 1971-04-26 1972-12-06
US4195969A (en) * 1978-01-05 1980-04-01 Clarke-Gravely Corporation Vacuum cleaner
JPS61109539A (en) * 1984-11-02 1986-05-28 松下電器産業株式会社 Electric cleaner
JPS61272026A (en) * 1985-05-29 1986-12-02 松下電器産業株式会社 Electric cleaner
DE3710619A1 (en) * 1987-03-31 1988-10-20 Zubler Geraetebau Industrial vacuum cleaner with integrated converter for supplying hand tools

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099466A1 (en) * 1982-07-06 1984-02-01 WAP Reinigungssysteme GmbH & Co. Suction apparatus for dirt
DE8704712U1 (en) * 1987-03-31 1987-10-08 Zubler Geraetebau Gmbh, 7910 Neu-Ulm, De
DE8704717U1 (en) * 1987-03-31 1988-02-25 Zubler Geraetebau Gmbh, 7910 Neu-Ulm, De

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510597A1 (en) * 1991-04-22 1992-10-28 Hitachi, Ltd. Electric vacuum cleaner
WO2010042563A2 (en) * 2008-10-06 2010-04-15 Shop Vac Corporation Vacuum assembly for automobile
WO2010042563A3 (en) * 2008-10-06 2010-06-10 Shop Vac Corporation Vacuum assembly for automobile
US8286300B2 (en) 2008-10-06 2012-10-16 Shop Vac Corporation System and method of controlling current draw of a switched reluctance motor
US8312590B2 (en) 2008-10-06 2012-11-20 Shop Vac Corporation System and method of controlling start-up of a switched reluctance motor
US8615845B2 (en) 2008-10-06 2013-12-31 Shop Vac Corporation Vacuum assembly for automobile
US9238451B2 (en) 2008-10-06 2016-01-19 Shop Vac Corporation Vacuum assembly with inlet through removable tank
US10618502B2 (en) 2008-10-06 2020-04-14 Shop Vac Corporation Vacuum assembly for automobile
WO2017137329A1 (en) * 2016-02-09 2017-08-17 Arcelik Anonim Sirketi A vacuum cleaner with improved operational performance
EP3398498A1 (en) * 2017-05-02 2018-11-07 TROTEC GmbH & Co. KG Device for insulating layer drying
EP3409166A1 (en) * 2017-05-29 2018-12-05 BSH Hausgeräte GmbH Exhaust channel for a vacuum cleaner and vacuum cleaner comprising this exhaust channel

Also Published As

Publication number Publication date
EP0415076B1 (en) 1995-01-11
KR910004239A (en) 1991-03-28
DE3928313A1 (en) 1991-02-28
US5068555A (en) 1991-11-26
DE59008233D1 (en) 1995-02-23
JPH03139319A (en) 1991-06-13
KR0146362B1 (en) 1998-08-01
BR9004193A (en) 1991-09-03
ATE116825T1 (en) 1995-01-15
EP0415076A3 (en) 1992-06-03
JPH0724644B2 (en) 1995-03-22

Similar Documents

Publication Publication Date Title
EP0415076B1 (en) Suction cleaner
EP0497296B1 (en) Filter-ventilator-arrangement for application in clean rooms
DE112012005011T5 (en) Air duct cover for an electrical enclosure
EP0942639A2 (en) Ventilated electronic cabinet
DE102012007707B4 (en) Cooling unit for cabinet cooling
DE102015226389B4 (en) Power converter and rail vehicle equipped therewith
DE19709145C1 (en) Two part heat exchanger for electrical equipment housings
DE212019000013U1 (en) Dust protection and cooling hood for a brushless electric motor
DE19737531C2 (en) Heat exchanger kit and air conditioning meter
DE202008012988U1 (en) Cooling arrangement of a power electronics device
EP2645009B1 (en) Ventilation system
DE102016111861B4 (en) A motor driving device in which a fan motor is exchangeable and a control panel including the same
EP3653940B1 (en) Extractor hood
DE19741993A1 (en) Control cabinet for accommodating electrical and electronic units
DE60318074T2 (en) CENTRAL VACUUM CLEANER AND ITS CENTRAL UNIT
DE19709834C2 (en) Modular generation unit for cleaned gases
DE202008016601U1 (en) Device for cooling gehauster spaces
DE60312317T2 (en) WATER FILTER UNIT
DE10038057B4 (en) filter Fans
DE4226634C2 (en) Venting device
DE202015102781U1 (en) Ventilation system for clean rooms
DE102008016164A1 (en) Extractor hood for use in processing machine e.g. milling machine, has passage openings provided in intermediate space that is formed between retaining unit and hood body, where lamellas are fastened to retaining unit at upper end
DE69916087T2 (en) FILTER FOR FAN WITH HIGH FILTER PERFORMANCE, LOW ENERGY CONSUMPTION AND LOW NOISE EXHAUST
DE10210418A1 (en) Switch cupboard with cooling arrangement for built-in elements, superimposes air sucked in and out by ventilators on a cool air stream fed to the ambient air in the switch cupboard.
EP1280248A1 (en) Electrical cabinet with at least one door and an internal forced air circulation circuit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19920922

17Q First examination report despatched

Effective date: 19931008

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19950111

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19950111

Ref country code: DK

Effective date: 19950111

Ref country code: GB

Effective date: 19950111

Ref country code: FR

Effective date: 19950111

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19950111

Ref country code: NL

Effective date: 19950111

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19950111

REF Corresponds to:

Ref document number: 116825

Country of ref document: AT

Date of ref document: 19950115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59008233

Country of ref document: DE

Date of ref document: 19950223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950411

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19950111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19950725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950731

Ref country code: CH

Effective date: 19950731

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050615

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070201