EP2229861B1 - Suction device with engine module - Google Patents

Suction device with engine module Download PDF

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Publication number
EP2229861B1
EP2229861B1 EP10002669.9A EP10002669A EP2229861B1 EP 2229861 B1 EP2229861 B1 EP 2229861B1 EP 10002669 A EP10002669 A EP 10002669A EP 2229861 B1 EP2229861 B1 EP 2229861B1
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EP
European Patent Office
Prior art keywords
motor
suction
suction device
motor module
housing
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Application number
EP10002669.9A
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German (de)
French (fr)
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EP2229861A2 (en
EP2229861A3 (en
Inventor
Markus Barabeisch
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Festool GmbH
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Festool GmbH
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Publication of EP2229861A2 publication Critical patent/EP2229861A2/en
Publication of EP2229861A3 publication Critical patent/EP2229861A3/en
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    • 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
    • A47L9/22—Mountings for motor fan assemblies

Definitions

  • the invention relates to a suction device for separating particles from a suction flow according to the preamble of claim 1.
  • Such a suction device is for example in US 2005/108849 A1 explained.
  • an air duct arrangement is provided with at least one intake duct, which leads to guiding the suction flow, for example from a filter to the naturally aspirated engine, and generally also air ducts which lead from the naturally aspirated engine to air outlets of the vacuum cleaner housing.
  • the vacuum housing is disassembled, for example by removing entire sides of the housing, so that the naturally aspirated engine or the motor module, which contains or is formed by the naturally aspirated engine, can be removed from the engine receiving space or to repair there on site.
  • the repair or maintenance of such a suction device is complex.
  • a suction device according to the technical teaching of claim 1 is provided to achieve the object.
  • the engine module can only have the naturally aspirated engine.
  • a basic idea of the invention is that the entire suction housing does not have to be disassembled in order to be able to maintain or repair the motor module or the suction motor, for example to replace coal or the like, but that only a cover for closing the motor receiving space has to be opened to the motor module removed from the engine compartment or reinstalled in it. In any case, the motor module is easily accessible, which considerably simplifies maintenance and repair tasks.
  • the cover can form an integral part of the motor module or can also be a separate component.
  • the cover preferably covers only the motor receiving space, that is to say in any case the assembly opening.
  • the cover expediently overhangs the assembly opening at least to such an extent that it is completely closed by the cover.
  • the cover for example, through openings for guiding Has air to the naturally aspirated engine and / or away from the naturally aspirated engine and does not completely close the assembly opening.
  • the invention provides that the suction housing itself does not have to be disassembled or a complete wall or wall side of the suction housing has to be removed, but only the cover is opened if the motor receiving space is to be accessible for maintenance and repair purposes of the suction motor.
  • the motor module can also have one or more turbines, at least one fan wheel, motor control or regulation or the like.
  • the cover has, for example, at least one air duct section for guiding air to the motor module and / or away from the motor module.
  • an intake duct for guiding cooling air cooling the engine module and / or an intake duct for sucking in dust air as part of the cover.
  • an air duct section of the cover is provided for guiding air away or for blowing out air, for example the suction flow or cooling air.
  • An expedient measure thus provides that the at least one air duct section has a blow-out duct for guiding the suction flow from the motor module to a suction flow outlet of the suction housing.
  • This air duct passage section expediently surrounds the motor module in the form of a partial ring or in the form of an overall ring.
  • channels e.g. an intake duct and a blow-out duct are provided on the cover, these are expediently separated from one another in terms of flow technology.
  • a seal between the intake and exhaust duct is advantageously provided.
  • the air duct arrangement expediently has at least one seal.
  • This seal is used, for example, for the fluidic separation of the exhaust duct from the intake duct, for the separation of cooling air leading to the engine module from the suction flow, for the separation of intake cooling air from outflowing, heated cooling air or the like.
  • the seal is advantageously provided for this because at least one air duct section of the cover is sealingly separated from an area of the motor receiving space through which cooling air flows.
  • the at least one seal is arranged, for example, on the cover or between the cover and the motor receiving space.
  • At least one bearing for mounting the motor module is expediently present in the motor receiving space and / or on the cover.
  • the bearing is advantageously an elastic bearing for the motor module.
  • the bearing can store the motor module in a floating manner. It goes without saying that a plurality of bearings, in particular arranged in stages, can be provided, the bearings also being able to have different hardnesses in order to be able to optimally fulfill their respective storage function.
  • a bearing can advantageously also be formed by a seal of the guide arrangement or comprise such a seal.
  • a seal can also form a bearing.
  • the suction housing can expediently be an overall closed suction housing, in which, for example, the mounting opening for the motor module is provided on an outer wall.
  • the mounting opening is expediently provided on an inner wall of the suction housing.
  • the suction housing is in two or more parts, e.g. according to the invention has a motor housing part having the motor receiving space and a filter housing part detachably connectable to the motor housing part.
  • the motor housing part is, for example, an upper housing part which is arranged on a lower housing part forming the filter housing part.
  • the lower housing part expediently has rollers so that it can be driven on a surface.
  • the suction housing wall on which the assembly opening is arranged is expediently an inner wall.
  • the suction housing wall on which the assembly opening is arranged is a side wall or bottom wall of the motor housing part facing the filter housing part.
  • the mounting opening is arranged on the side wall or partition, but expediently only requires a partial area of the same.
  • an intake filter upstream of the engine mounting space can be arranged next to the mounting opening for the engine module on this side wall, a bottom wall or a partition wall.
  • a suction motor 12 for generating a suction flow 13 is arranged in the interior of a suction housing 11 of a suction device 10 and can be sucked into the suction housing 11 via a suction inlet 14.
  • a hose (not shown) can be connected to the suction inlet 14.
  • a receptacle 17 for receiving the suction hose and / or a connecting cable 18 with which the suction device 10 can be connected to an electrical supply network.
  • a suction device with an accumulator would be possible.
  • the suction device 10 is a portable suction device, on the underside of which there are castors 19, 20 are arranged.
  • the front casters 20 are castors.
  • the suction device 10 can be gripped on a carrying handle 21 on the upper side 16.
  • An operating wall 23 with operating elements 24 for operating the suction device 10 extends between a front wall 22 having the suction inlet 14 and the upper side 16 of the suction housing 11.
  • the operating wall 23 is expediently inclined so that the operating elements 24 are easy to operate from the top at an angle.
  • the control elements 24 comprise a switch 25, which forms a main switch, so to speak.
  • the suction motor 12 can be switched on and off with the switch 25.
  • an automatic mode can be set, in which the naturally aspirated motor 12 runs whenever a connected consumer receives electrical current via the suction device 10, which will be explained later.
  • An adaptation switch 27 enables electrical adaptation of the suction device 10 to a suction hose connected to a respective suction inlet 14.
  • a cleaning function of the suction device 10 can be switched on and / or parameterized with a cleaning switch 28.
  • a socket 29 permanently installed on the suction device 10 enables an electrical energy consumer to be plugged in. The socket 29 is electrically connected to the connection cable 18.
  • the suction housing 11 is constructed in two parts and has a motor housing part 30 and a filter housing part 31.
  • the motor housing part 30 forms an upper housing part 32, which is placed on the filter housing part 31 forming a lower housing part 33, see Figure 1 .
  • the upper housing part 32 therefore sits on the lower housing part 33 with its outer peripheral edge region 36.
  • the motor housing part 30 is connected to the filter housing part 31 by means of holding means 37 which can be operated manually without tools.
  • the holding means 37 comprise, for example, tabs 38 which overlap the peripheral edge region 36 and engage in holding recesses 39 on the lower housing part 33.
  • the tabs 38 are mounted on bearings 40 of the motor housing part 30 so as to be pivotable and / or longitudinally displaceable, so that they can be brought into or out of engagement with the holding recesses 39.
  • the bearings 40 and the associated holding recesses 39 are arranged directly one above the other approximately in the area of a longitudinal center 41 of side walls 42, 43 of the motor housing part 30 and the filter housing part 31.
  • a large-sized filter bag 48 of the filter arrangement 15 can optionally be arranged.
  • the suction device 10 can also be operated without the filter bag 48.
  • the interior space 47 is advantageously open towards the motor housing part 30.
  • the motor housing part 30 has, in addition to its two side walls 42, a bottom wall 49 which is provided with openings to be explained later and which faces the interior 47 of the filter housing part 31, a front wall 50, a rear wall 51 and a top wall 52 which also forms the bottom of the receptacle 17 .
  • the walls 49 to 52 define an interior 53, in which, among other things, an engine mounting space 54 for the naturally aspirated engine 12 and an air guide arrangement 55 communicating with the engine mounting space 54 or the naturally aspirated engine 12 are arranged.
  • the interior 53 is closed.
  • the bottom wall 49 essentially has two openings, namely a suction inlet 56 for the suction flow 13 shown in solid arrow lines and a mounting opening 57 through which the suction motor 12 configured as a motor module 58 can be introduced into the motor receiving space 54 or removed from it again.
  • the mounting opening 57 is dimensioned such that the motor module 58 can be inserted as a whole into the motor receiving space 54 or removed from there again. All that needs to be done is to remove a cover 60 fixed to the motor housing part 30 with screws 59, which closes the assembly opening 57 in the state in which it is mounted on the motor housing part 30.
  • quick fasteners could also be provided, preferably those for tool-free assembly, for example clamping levers or articulated levers or the like.
  • the mounting opening 57 is thus arranged on the bottom wall 49 of the motor housing part 30, and consequently on one of its suction housing walls 49a.
  • a main filter 61 is arranged in front of the suction inlet 56.
  • the main filter 61 is designed as a filter insert 62 which is received in a filter receptacle 63 of the bottom wall 49.
  • the filter insert 62 or the filter receptacle 63 extend approximately from the longitudinal center 41 to the front wall 50, so that they occupy approximately half the area of the bottom wall 49.
  • the other surface of the bottom wall 49 or the remaining surface is covered by the cover 60.
  • the suction stream 13 is sucked into the filter bag 48 through the suction inlet 14, to which a suction hose can be arranged.
  • the filter bag 48 picks up particles contained in the suction flow 13.
  • the suction flow 13 is generated by the suction motor 12, which draws the suction flow 13 through the main filter 61 through the suction inlet 56.
  • the suction inlet 56 is arranged downstream of the main filter 61 in the suction device 10.
  • the suction inlet 56 is an inlet of a suction channel section 64 which is essentially U-shaped in cross section and which is arranged fixedly in the interior 53 of the motor housing part 30.
  • a suction duct outlet 65 of the suction duct section 64 communicates with an air duct duct inlet 66 of an air duct duct section 67 of the cover 60.
  • the suction duct outlet 65 and the air duct duct inlet 66 are connected to one another in a flow-tight manner.
  • a seal 68 is expediently provided between the suction duct outlet 65 and the air duct duct inlet 66.
  • the air duct section 67 opens at an air outlet opening 69.
  • the outlet opening 69 is essentially arranged centrally on the cover 60.
  • the outlet opening 69 is arranged opposite a turbine inlet 70 of a suction turbine 71 of the motor module 58.
  • the suction turbine 71 draws in the suction flow 13 through the turbine inlet 70 and blows it out radially through a blow-out duct 73 which is also integrated in the cover 60.
  • the air duct duct section 67 thus forms an intake duct 72.
  • the exhaust duct 73 forms a further air duct duct section 74, the air duct duct sections 67, 74 being separated from one another in a flow-tight manner.
  • a seal 75 is expediently provided for this.
  • the air duct section 74 surrounds the outlet opening 69 in an annular manner, an annular wall 76 and a cover wall 77 covering the suction duct 72 being provided between the air duct sections 67, 74.
  • the outlet opening 69 is essentially circular and formed a central suction area 78 for the motor module 58.
  • the seal 75 surrounds the suction area 78 and is arranged between the cover 60 on the one hand and the motor module 58 on the other hand.
  • the seal 75 bears against a bottom wall 79 of the engine module, on which the turbine inlet 70 is arranged.
  • the seal 75 is an elastic seal, which also forms a bearing 80 for the motor module 58.
  • a circumferential groove 81 is arranged on the outer cross-sectional circumference of the cover 60, into which a corresponding annular projection 82 engages on the bottom wall 49.
  • a further seal 83 is provided in the circumferential groove 81, so that the blow-out duct 73 is sealed.
  • Screw receptacles 87 for receiving the screws 59 are arranged on a circumferential wall 86, which surrounds the annular air duct section 74 in an annular manner and protrudes upward in front of a bottom wall 90 of the air duct section 74.
  • Screw domes or screw-in openings 103 on the suction housing wall 49a are assigned to the screw receptacles 87 designed as screw-through openings.
  • Muffler measures are expediently also provided for cover 60.
  • sound-absorbing coatings or, as in the exemplary embodiment, silencer inserts 88 can be provided on the bottom wall 90 and / or the peripheral wall 86.
  • soundproofing measures can also be provided for the air duct section 67, e.g. a soundproof coating of the bottom wall 89 or the like.
  • two further seals 92, 93 are provided in the motor receiving space 54, which at the same time form bearings or bearings for the motor module 58.
  • the seal 92 supports the motor module 58 on its side opposite the turbine inlet 70. There, a cooling air flow 94 flows from above into the engine module 58 and in particular the naturally aspirated engine 12.
  • the seal 93 is arranged at a step 95 in the motor receiving space 54 between the bearing or the seal 92 and the seal 75 and the bearing 80 and supports the motor module 58. At the same time, the seal 93 separates the cooling air flow 94 from the suction flow 13.
  • the cooling air flow 94 flows into the suction housing 11 through a cooling air inlet 96 on the front wall 50 of the motor housing part 30.
  • the cooling air flow 94 first flows past a controller 97 of the suction device 10 and cools it.
  • the cooling air flow 94 flows further via a cooling air duct 98 running between the filter receptacle 63 for the filter insert 62 and the top wall 52 to the motor receiving space 54, in which it flows from above into a cooling air inlet of the motor module 58.
  • the cooling air flow 94 flows through the naturally aspirated motor 12 along its axis of rotation and in particular cools the armature windings of the naturally aspirated motor 12.
  • the cooling air flow 94 then flows out of the motor receiving space 54, the corresponding cooling air flow outlet opening being arranged between the seals 92 and 93.
  • the cooling air flow 94 flows out of the suction housing 11 to the rear.
  • a cooling air outlet 99 is provided on the rear wall 51 of the motor housing part 30.
  • a silencer 100 is provided between the motor receiving space 54 and the cooling air outlet 99.
  • the engine module 58 in which the cooling air flow 94 is guided separately from the suction flow 13, can also be referred to as a so-called bypass turbine.
  • a bypass turbine is known per se, an innovative air duct being realized in the suction device according to the invention, which has a cover, specifically the cover 60 in the exemplary embodiment, for closing an assembly opening for the bypass turbine.
  • At least one temperature sensor for monitoring the temperature of the suction flow 13 and / or the cooling air flow 94 is expedient.
  • the exhaust air / suction flow 13 can be monitored by means of a temperature sensor 101 which is arranged on a wall surface 102.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • External Artificial Organs (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Die Erfindung betrifft ein Sauggerät zum Absondern von Partikeln aus einem Saugstrom gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a suction device for separating particles from a suction flow according to the preamble of claim 1.

Ein derartiges Sauggerät ist beispielsweise in US 2005/108849 A1 erläutert.Such a suction device is for example in US 2005/108849 A1 explained.

Im.Saugergehäuse eines Sauggerätes aus DE 101 30 995 A1 ist eine Luftführungsanordnung mit mindestens einem Ansaugkanal vorgesehen, der zur Führung des Saugstroms beispielsweise von einem Filter zum Saugmotor führt sowie in der Regel ferner Luftführungen, die vom Saugmotor zu Luftauslässen des Saugergehäuses führen.In the suction housing of a suction device DE 101 30 995 A1 an air duct arrangement is provided with at least one intake duct, which leads to guiding the suction flow, for example from a filter to the naturally aspirated engine, and generally also air ducts which lead from the naturally aspirated engine to air outlets of the vacuum cleaner housing.

Wenn der Saugmotor eine Wartung benötigt, beispielsweise seine Kohlen ausgetauscht werden sollen, wird das Saugergehäuse zerlegt, beispielsweise durch Entfernen von ganzen Gehäuseseiten, so dass der Saugmotor bzw. das Motormodul, das den Saugmotor enthält oder von diesem gebildet wird, aus dem Motoraufnahmeraum zu entnehmen oder dort vor Ort zu reparieren. Die Reparatur oder Wartung eines solchen Sauggerätes ist aufwändig.If the naturally aspirated engine requires maintenance, for example, its coals are to be replaced, the vacuum housing is disassembled, for example by removing entire sides of the housing, so that the naturally aspirated engine or the motor module, which contains or is formed by the naturally aspirated engine, can be removed from the engine receiving space or to repair there on site. The repair or maintenance of such a suction device is complex.

Es ist daher die Aufgabe der vorliegenden Erfindung, ein einfach wartbares Sauggerät bereitzustellen.It is therefore the object of the present invention to provide an easily maintainable suction device.

Zur Lösung der Aufgabe ist ein Sauggerät gemäß der technischen Lehre des Anspruchs 1 vorgesehen.A suction device according to the technical teaching of claim 1 is provided to achieve the object.

Das Motormodul kann ausschließlich den Saugmotor aufweisen. Man könnte dann auch sagen, dass der Saugmotor als ein Motormodul ausgestaltet ist.The engine module can only have the naturally aspirated engine. One could then also say that the naturally aspirated engine is designed as a motor module.

Ein Grundgedanke der Erfindung ist es, dass nicht das gesamte Saugergehäuse zerlegt werden muss, um das Motormodul oder den Saugmotor warten oder reparieren zu können, beispielsweise Kohlen auszuwechseln oder dergleichen, sondern dass lediglich ein Deckel zum Verschließen des Motoraufnahmeraums geöffnet werden muss, um das Motormodul aus dem Motoraufnahmeraum zu entnehmen oder es in diesen wieder einzubringen. Jedenfalls ist das Motormodul bequem zugänglich, was Wartungs- und Reparaturaufgaben erheblich vereinfacht.A basic idea of the invention is that the entire suction housing does not have to be disassembled in order to be able to maintain or repair the motor module or the suction motor, for example to replace coal or the like, but that only a cover for closing the motor receiving space has to be opened to the motor module removed from the engine compartment or reinstalled in it. In any case, the motor module is easily accessible, which considerably simplifies maintenance and repair tasks.

Der Deckel kann einen integralen Bestandteil des Motormoduls bilden oder auch ein separates Bauteil sein.The cover can form an integral part of the motor module or can also be a separate component.

Der Deckel überdeckt vorzugsweise ausschließlich den Motoraufnahmeraum, das heißt jedenfalls die Montageöffnung. Der Deckel überkragt die Montageöffnung zweckmäßigerweise zumindest soweit, dass diese vollständig durch den Deckel geschlossen ist. Es ist prinzipiell aber auch möglich, dass der Deckel beispielsweise Durchgangsöffnungen zur Führung von Luft zu dem Saugmotor und/oder von dem Saugmotor weg aufweist und insoweit die Montageöffnung nicht vollständig verschließt. Jedenfalls sieht die Erfindung vor, dass nicht das Saugergehäuse an sich zerlegt oder eine komplette Wandung oder Wandseite des Saugergehäuse entfernt werden muss, sondern lediglich der Deckel geöffnet wird, wenn der Motoraufnahmeraum zu Wartungs- und Reparaturzwecken des Saugmotors zugänglich sein soll.The cover preferably covers only the motor receiving space, that is to say in any case the assembly opening. The cover expediently overhangs the assembly opening at least to such an extent that it is completely closed by the cover. In principle, however, it is also possible that the cover, for example, through openings for guiding Has air to the naturally aspirated engine and / or away from the naturally aspirated engine and does not completely close the assembly opening. In any case, the invention provides that the suction housing itself does not have to be disassembled or a complete wall or wall side of the suction housing has to be removed, but only the cover is opened if the motor receiving space is to be accessible for maintenance and repair purposes of the suction motor.

Das Motormodul kann neben dem Saugmotor auch eine oder mehrere Turbinen, mindestens ein Lüfterrad, eine Motorsteuerung oder -regelung oder dergleichen aufweisen.In addition to the naturally aspirated motor, the motor module can also have one or more turbines, at least one fan wheel, motor control or regulation or the like.

Über seine Abdeckfunktion der Montageöffnung hinaus können bei dem Deckel weitere vorteilhafte Maßnahmen vorgesehen sein:
Der Deckel weist beispielsweise mindestens einen Luftführungskanalabschnitt zur Führung von Luft zu dem Motormodul und/oder von dem Motormodul weg.auf.In addition to its covering function of the assembly opening, further advantageous measures can be provided for the cover:
The cover has, for example, at least one air duct section for guiding air to the motor module and / or away from the motor module.

Es können z.B. ein Ansaugkanal zur Führung von das Motormodul kühlender Kühlluft und/oder ein Ansaugkanal zum Ansaugen von Staubluft Bestandteil des Deckels bilden.For example, form an intake duct for guiding cooling air cooling the engine module and / or an intake duct for sucking in dust air as part of the cover.

Weiterhin ist es möglich, dass ein Luftführungskanalabschnitt des Deckels zur Wegführung von Luft oder zum Ausblasen von Luft, beispielsweise des Saugstroms oder von Kühlluft, vorgesehen ist. So sieht eine zweckmäßige Maßnahme vor, dass der mindestens eine Luftführungskanalabschnitt einen Ausblaskanal zur Führung des Saugstroms von dem Motormodul zu einem Saugstromauslass des Saugergehäuses aufweist. Dieser Luftführungskanalabschnitt umgibt das Motormodul zweckmäßigerweise teilringförmig oder insgesamt ringförmig.Furthermore, it is possible that an air duct section of the cover is provided for guiding air away or for blowing out air, for example the suction flow or cooling air. An expedient measure thus provides that the at least one air duct section has a blow-out duct for guiding the suction flow from the motor module to a suction flow outlet of the suction housing. This air duct passage section expediently surrounds the motor module in the form of a partial ring or in the form of an overall ring.

Sofern mehrere Kanäle, z.B. ein Ansaugkanal und ein Ausblaskanal, am Deckel vorgesehen sind, sind diese zweckmäßigerweise strömungstechnisch voneinander getrennt. Vorteilhaft ist eine Dichtung zwischen Ansaug- und Ausblaskanal vorgesehen.If several channels, e.g. an intake duct and a blow-out duct are provided on the cover, these are expediently separated from one another in terms of flow technology. A seal between the intake and exhaust duct is advantageously provided.

Die Luftführungsanordnung weist nämlich zweckmäßigerweise mindestens eine Dichtung auf. Diese Dichtung dient beispielsweise zur strömungstechnischen Trennung des Ausblaskanals von dem Ansaugkanal, zur Trennung von zu dem Motormodul führender Kühlluft von dem Saugstrom, zur Trennung von angesaugter Kühlluft gegenüber abströmender, erwärmter Kühlluft oder dergleichen. Die Dichtung ist vorteilhaft dazu vorgesehen, denn mindestens einen Luftführungskanalabschnitt des Deckels von einem von Kühlluft durchströmten Bereich des Motoraufnahmeraums dichtend zu trennen.The air duct arrangement expediently has at least one seal. This seal is used, for example, for the fluidic separation of the exhaust duct from the intake duct, for the separation of cooling air leading to the engine module from the suction flow, for the separation of intake cooling air from outflowing, heated cooling air or the like. The seal is advantageously provided for this because at least one air duct section of the cover is sealingly separated from an area of the motor receiving space through which cooling air flows.

Die mindestens eine Dichtung ist beispielsweise an dem Deckel oder zwischen dem Deckel und dem Motoraufnahmeraum angeordnet.The at least one seal is arranged, for example, on the cover or between the cover and the motor receiving space.

In dem Motoraufnahmeraum und/oder an dem Deckel ist zweckmäßigerweise mindestens ein Lager zur Lagerung des Motormoduls vorhanden. Das Lager ist vorteilhaft ein elastisches Lager für das Motormodul. Beispielsweise kann das Lager das Motormodul schwimmend lagern. Es versteht sich, dass mehrere, insbesondere stufig angeordnete Lager vorgesehen sein können, wobei die Lager auch unterschiedliche Härten aufweisen können, um ihre jeweilige Lagerungsfunktion optimal erfüllen zu können.At least one bearing for mounting the motor module is expediently present in the motor receiving space and / or on the cover. The bearing is advantageously an elastic bearing for the motor module. For example, the bearing can store the motor module in a floating manner. It goes without saying that a plurality of bearings, in particular arranged in stages, can be provided, the bearings also being able to have different hardnesses in order to be able to optimally fulfill their respective storage function.

Ein Lager kann vorteilhaft auch durch eine Dichtung der Führungsanordnung gebildet sein oder eine solche Dichtung umfassen. Anders formuliert kann eine Dichtung auch ein Lager bilden.A bearing can advantageously also be formed by a seal of the guide arrangement or comprise such a seal. In other words, a seal can also form a bearing.

Das Saugergehäuse kann zweckmäßigerweise ein insgesamt geschlossenes Saugergehäuse sein, bei dem beispielsweise an einer Außenwandung die Montageöffnung für das Motormodul vorgesehen ist. Zweckmäßigerweise ist die Montageöffnung jedoch an einer Innenwandung des Saugergehäuses vorgesehen. Insbesondere bei dieser Ausführungsform ist es vorteilhaft, wenn das Saugergehäuse zwei oder mehrteilig ist, z.B. erfindungsgemäß ein den Motoraufnahmeraum aufweisendes Motorgehäuseteil und ein mit dem Motorgehäuseteil lösbar verbindbares Filtergehäuseteil aufweist. Das Motorgehäuseteil ist beispielsweise ein Gehäuseoberteil, das auf einem das Filtergehäuseteil bildenden Gehäuseunterteil angeordnet ist. Das Gehäuseunterteil hat zweckmäßigerweise Rollen, um es auf einem Untergrund fahren zu können.The suction housing can expediently be an overall closed suction housing, in which, for example, the mounting opening for the motor module is provided on an outer wall. However, the mounting opening is expediently provided on an inner wall of the suction housing. In this embodiment in particular it is advantageous if the suction housing is in two or more parts, e.g. according to the invention has a motor housing part having the motor receiving space and a filter housing part detachably connectable to the motor housing part. The motor housing part is, for example, an upper housing part which is arranged on a lower housing part forming the filter housing part. The lower housing part expediently has rollers so that it can be driven on a surface.

Die Saugergehäusewand, an der die Montageöffnung angeordnet ist, ist zweckmäßigerweise eine Innenwand. Erfindungsgemäß ist die Saugergehäusewand, an der die Montageöffnung angeordnet ist, eine dem Filtergehäuseteil zugewandte Seitenwand oder Bodenwand des Motorgehäuseteils.The suction housing wall on which the assembly opening is arranged is expediently an inner wall. According to the invention, the suction housing wall on which the assembly opening is arranged is a side wall or bottom wall of the motor housing part facing the filter housing part.

Die Montageöffnung ist an der Seitenwand oder Trennwand angeordnet, benötigt aber zweckmäßigerweise nur einen Teilbereich derselben. Beispielsweise kann an dieser Seitenwand, eine Bodenwand oder Trennwand ein den Motoraufnahmeraum vorgelagerter Ansaugfilter neben der Montageöffnung für das Motormodul angeordnet sein.The mounting opening is arranged on the side wall or partition, but expediently only requires a partial area of the same. For example, an intake filter upstream of the engine mounting space can be arranged next to the mounting opening for the engine module on this side wall, a bottom wall or a partition wall.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung erläutert. Es zeigen:

Figur 1
eine perspektivische Frontal-Schrägansicht eines Sauggerätes,
Figur 2
eine Unterseitenansicht eines Gehäuseoberteils des Sauggeräts aus Figur 1,
Figur 3
ein Gehäuseunterteil des Sauggeräts gemäß Figur 1 von oben,
Figur 4
eine Explosionsdarstellung des Gehäuseoberteils gemäß Figur 2 mit einem Motormodul und einem Deckel zum Verschließen eines Motoraufnahmeraums,
Figur 5
eine Innenansicht des Deckels gemäß Figur 4,
Figur 6
eine Querschnittsansicht des Sauggeräts gemäß Figur 1 entlang einer Linie A-A,
Figur 7
eine Querschnittsansicht des Gehäuses gemäß Figur 1 entlang einer Linie B-B, und
Figur 8
ein Detail C aus Figur 6.
An exemplary embodiment of the invention is explained below with reference to the drawing. Show it:
Figure 1
a perspective oblique front view of a suction device,
Figure 2
a bottom view of a housing upper part of the suction device Figure 1 ,
Figure 3
a lower housing part of the suction device according Figure 1 from above,
Figure 4
an exploded view of the upper housing part Figure 2 with a motor module and a cover for closing an engine compartment,
Figure 5
an inside view of the lid Figure 4 ,
Figure 6
a cross-sectional view of the suction device according to Figure 1 along a line AA,
Figure 7
a cross-sectional view of the housing according to Figure 1 along a line BB, and
Figure 8
a detail C. Figure 6 .

Im Inneren eines Saugergehäuses 11 eines Sauggeräts 10 ist ein Saugmotor 12 zum Erzeugen eines Saugstroms 13 angeordnet, der über einen Saugeinlass 14 in das Saugergehäuse 11 einsaugbar ist. An den Saugeinlass 14 ist ein nicht dargestellter Schlauch anschließbar. Im Inneren des Saugergehäuses 11 befindet sich ferner eine Filteranordnung 15 zum Absondern von Partikeln aus dem Saugstrom 13.A suction motor 12 for generating a suction flow 13 is arranged in the interior of a suction housing 11 of a suction device 10 and can be sucked into the suction housing 11 via a suction inlet 14. A hose (not shown) can be connected to the suction inlet 14. In the interior of the suction housing 11 there is also a filter arrangement 15 for separating particles from the suction flow 13.

An einer Oberseite 16 des Saugergehäuses 11 befindet sich eine Aufnahme 17 zur Aufnahme des Saugschlauches und/oder eines Anschlusskabels 18, mit dem das Sauggerät 10 an ein elektrisches Versorgungsnetz anschließbar ist. Alternativ wäre ein Sauggerät mit einem Akkumulator möglich. Das Sauggerät 10 ist ein transportables Sauggerät, an dessen Unterseite Fahrrollen 19, 20 angeordnet sind. Die vorderen Fahrrollen 20 sind Lenkrollen. Weiterhin kann das Sauggerät 10 an einem Tragegriff 21 an der Oberseite 16 ergriffen werden.On a top 16 of the suction housing 11 there is a receptacle 17 for receiving the suction hose and / or a connecting cable 18 with which the suction device 10 can be connected to an electrical supply network. Alternatively, a suction device with an accumulator would be possible. The suction device 10 is a portable suction device, on the underside of which there are castors 19, 20 are arranged. The front casters 20 are castors. Furthermore, the suction device 10 can be gripped on a carrying handle 21 on the upper side 16.

Zwischen einer den Saugeinlass 14 aufweisenden Frontwand 22 und der Oberseite 16 des Saugergehäuses 11 erstreckt sich eine Bedienwand 23 mit Bedienelementen 24 zur Bedienung des Sauggeräts 10. Die Bedienwand 23 ist zweckmäßigerweise schräg geneigt, so dass die Bedienelemente 24 von schräg oben vorn leicht bedienbar sind.An operating wall 23 with operating elements 24 for operating the suction device 10 extends between a front wall 22 having the suction inlet 14 and the upper side 16 of the suction housing 11. The operating wall 23 is expediently inclined so that the operating elements 24 are easy to operate from the top at an angle.

Die Bedienelemente 24 umfassen einen Schalter 25, der sozusagen einen Hauptschalter bildet. Mit dem Schalter 25 kann der Saugmotor 12 ein- und ausgeschaltet werden. Ferner ist ein Automatikmodus einstellbar, bei dem der Saugmotor 12 immer dann läuft, wenn ein angeschlossener Verbraucher elektrischen Strom über das Sauggerät 10 erhält, was später noch erläutert wird. Mit Hilfe eines Saugleistungs- oder Drehzahlschalters 26 kann eine Leistung des Saugmotors 12 eingestellt werden. Ein Anpassungsschalter 27 ermöglicht eine elektrische Anpassung des Sauggeräts 10 an einem jeweiligen Saugeinlass 14 angeschlossenen Saugschlauch. Mit einem Reinigungsschalter 28 ist eine Reinigungsfunktion des Sauggeräts 10 einschaltbar und/oder parametrierbar. Eine fest am Sauggerät 10 installierte Steckdose 29 ermöglicht das Einstecken eines elektrischen Energieverbrauchers. Die Steckdose 29 ist mit dem Anschlusskabel 18 elektrisch verbunden.The control elements 24 comprise a switch 25, which forms a main switch, so to speak. The suction motor 12 can be switched on and off with the switch 25. Furthermore, an automatic mode can be set, in which the naturally aspirated motor 12 runs whenever a connected consumer receives electrical current via the suction device 10, which will be explained later. With the help of a suction power or speed switch 26, an output of the suction motor 12 can be set. An adaptation switch 27 enables electrical adaptation of the suction device 10 to a suction hose connected to a respective suction inlet 14. A cleaning function of the suction device 10 can be switched on and / or parameterized with a cleaning switch 28. A socket 29 permanently installed on the suction device 10 enables an electrical energy consumer to be plugged in. The socket 29 is electrically connected to the connection cable 18.

Das Saugergehäuse 11 ist zweiteilig aufgebaut und weist ein Motorgehäuseteil 30 sowie ein Filtergehäuseteil 31 auf. Das Motorgehäuseteil 30 bildet ein Gehäuseoberteil 32, das auf das ein Gehäuseunterteil 33 bildende Filtergehäuseteil 31 aufgesetzt ist, siehe Figur 1. An einer Unterseite 34a des Motorgehäuseteils 30 ist eine im Wesentlichen umlaufende Nut 34 vorhanden, in die ein Eingreifrand 35 des Filtergehäuseteils 31 eingreift. Mithin sitzt also das Gehäuseoberteil 32 auf dem Gehäuseunterteil 33 mit seinem äußeren Umfangsrandbereich 36 auf.The suction housing 11 is constructed in two parts and has a motor housing part 30 and a filter housing part 31. The motor housing part 30 forms an upper housing part 32, which is placed on the filter housing part 31 forming a lower housing part 33, see Figure 1 . On an underside 34a of the motor housing part 30 there is an essentially circumferential groove 34, into which an engagement edge 35 of the filter housing part 31 engages. The upper housing part 32 therefore sits on the lower housing part 33 with its outer peripheral edge region 36.

Das Motorgehäuseteil 30 ist mit dem Filtergehäuseteil 31 durch manuell, werkzeuglos betätigbare Haltemittel 37 verbunden. Die Haltemittel 37 umfassen beispielsweise Laschen 38, die den Umfangsrandbereich 36 übergreifen und in Halteausnehmungen 39 am Gehäuseunterteil 33 eingreifen. Die Laschen 38 sind an Lagern 40 des Motorgehäuseteils 30 schwenkbeweglich und/oder längsverschieblich gelagert, so dass sie in Eingriff oder außer Eingriff mit den Halteausnehmungen 39 gebracht werden können.The motor housing part 30 is connected to the filter housing part 31 by means of holding means 37 which can be operated manually without tools. The holding means 37 comprise, for example, tabs 38 which overlap the peripheral edge region 36 and engage in holding recesses 39 on the lower housing part 33. The tabs 38 are mounted on bearings 40 of the motor housing part 30 so as to be pivotable and / or longitudinally displaceable, so that they can be brought into or out of engagement with the holding recesses 39.

Die Lager 40 und die zugeordneten Halteausnehmungen 39 sind unmittelbar übereinander etwa im Bereich einer Längsmitte 41 von Seitenwänden 42, 43 des Motorgehäuseteils 30 und des Filtergehäuseteils 31 angeordnet.The bearings 40 and the associated holding recesses 39 are arranged directly one above the other approximately in the area of a longitudinal center 41 of side walls 42, 43 of the motor housing part 30 and the filter housing part 31.

Ein Boden 44 sowie eine den Saugeinlass 14 aufweisende Frontwand 45 und eine Heckwand 46 des Filtergehäuseteils 31 begrenzen einen Innenraum 47 des Filtergehäuseteils 31. In dem Innenraum 47 ist ein großformatiger Filtersack 48 der Filteranordnung 15 optional anordenbar. Das Sauggerät 10 ist allerdings auch ohne den Filtersack 48 betreibbar. Der Innenraum 47 ist zum Motorgehäuseteil 30 hin vorteilhaft offen.A bottom 44 and a front wall 45 having the suction inlet 14 and a rear wall 46 of the filter housing part 31 delimit an interior 47 of the filter housing part 31. In the interior 47, a large-sized filter bag 48 of the filter arrangement 15 can optionally be arranged. However, the suction device 10 can also be operated without the filter bag 48. The interior space 47 is advantageously open towards the motor housing part 30.

Das Motorgehäuseteil 30 weist neben seinen beiden Seitenwänden 42 eine mit später noch erläuterten Durchbrechungen versehene Bodenwand 49, die dem Innenraum 47 des Filtergehäuseteils 31 zugewandt ist, eine Frontwand 50, eine Heckwand 51 sowie eine Deckwand 52 auf, die zugleich den Boden der Aufnahme 17 bildet. Die Wände 49 bis 52 definieren einen Innenraum 53, in dem unter anderem ein Motoraufnahmeraum 54 für den Saugmotor 12 sowie eine mit dem Motoraufnahmeraum 54 bzw. dem Saugmotor 12 kommunizierende Luftführungsanordnung 55 angeordnet sind.The motor housing part 30 has, in addition to its two side walls 42, a bottom wall 49 which is provided with openings to be explained later and which faces the interior 47 of the filter housing part 31, a front wall 50, a rear wall 51 and a top wall 52 which also forms the bottom of the receptacle 17 . The walls 49 to 52 define an interior 53, in which, among other things, an engine mounting space 54 for the naturally aspirated engine 12 and an air guide arrangement 55 communicating with the engine mounting space 54 or the naturally aspirated engine 12 are arranged.

Abgesehen von Zuströmöffnungen bzw. Ausströmöffnungen der Luftführungsanordnung 55 ist der Innenraum 53 geschlossen.Apart from inflow openings or outflow openings of the air guide arrangement 55, the interior 53 is closed.

Die Bodenwand 49 weist im Wesentlichen zwei Öffnungen auf, nämlich einen Saugeinlass 56 für den in durchgezogenen Pfeillinien dargestellten Saugstrom 13 sowie eine Montageöffnung 57, durch die der als Motormodul 58 ausgestaltete Saugmotor 12 in den Motoraufnahmeraum 54 eingebracht oder aus diesem wieder entfernt werden kann. Die Montageöffnung 57 ist so bemessen, dass das Motormodul 58 als Ganzes in den Motoraufnahmeraum 54 eingesetzt oder von dort wieder entnommen werden kann. Dazu ist lediglich ein mit Schrauben 59 am Motorgehäuseteil 30 festgelegter Deckel 60 zu entfernen, der die Montageöffnung 57 im am Motorgehäuseteil 30 montierten Zustand verschließt.The bottom wall 49 essentially has two openings, namely a suction inlet 56 for the suction flow 13 shown in solid arrow lines and a mounting opening 57 through which the suction motor 12 configured as a motor module 58 can be introduced into the motor receiving space 54 or removed from it again. The mounting opening 57 is dimensioned such that the motor module 58 can be inserted as a whole into the motor receiving space 54 or removed from there again. All that needs to be done is to remove a cover 60 fixed to the motor housing part 30 with screws 59, which closes the assembly opening 57 in the state in which it is mounted on the motor housing part 30.

Es muss also nicht das komplette Motorgehäuseteil 30 oder gar das Saugergehäuse 11 an sich zerlegt werden, damit der Saugmotor 12 zu Wartungszwecken zugänglich ist, beispielsweise zum Kohlen- oder Bürstenwechsel im Verschleißfall. Auch wenn der Saugmotor 12 nach einer bestimmten Anzahl von Betriebsstunden verschlissen ist, durch Verschmutzung zur Geruchsbildung neigt oder dergleichen, ist ein einfacher Wechsel des Motormoduls 58 als Ganzes möglich.It is therefore not necessary to disassemble the complete motor housing part 30 or even the suction housing 11 itself so that the suction motor 12 is accessible for maintenance purposes, for example for changing the brush or brush in the event of wear. Even if the naturally aspirated motor 12 is worn out after a certain number of operating hours, tends to form odors due to contamination or the like, it is possible to change the motor module 58 as a whole in a simple manner.

Selbstverständlich könnte man an Stelle von Schrauben 59 oder zu deren Ergänzung auch Schnellverschlüsse vorsehen, vorzugsweise solche für eine werkzeuglose Montage, beispielsweise Klemmhebel oder Knickhebel oder dergleichen.Of course, instead of screws 59 or to complement them, quick fasteners could also be provided, preferably those for tool-free assembly, for example clamping levers or articulated levers or the like.

Die Montageöffnung 57 ist also an der Bodenwand 49 des Motorgehäuseteils 30, mithin an einer von dessen Saugergehäuse-Wänden 49a angeordnet.The mounting opening 57 is thus arranged on the bottom wall 49 of the motor housing part 30, and consequently on one of its suction housing walls 49a.

Dem Saugeinlass 56 ist ein Hauptfilter 61 vorgelagert. Der Hauptfilter 61 ist als Filtereinsatz 62 ausgestaltet, der in einer Filteraufnahme 63 der Bodenwand 49 aufgenommen ist. Der Filtereinsatz 62 bzw. die Filteraufnahme 63 erstrecken sich etwa von der Längsmitte 41 bis zur Frontwand 50, so dass sie etwa die Hälfte der Fläche der Bodenwand 49 einnehmen.A main filter 61 is arranged in front of the suction inlet 56. The main filter 61 is designed as a filter insert 62 which is received in a filter receptacle 63 of the bottom wall 49. The filter insert 62 or the filter receptacle 63 extend approximately from the longitudinal center 41 to the front wall 50, so that they occupy approximately half the area of the bottom wall 49.

Die andere Fläche der Bodenwand 49 bzw. die restliche Fläche wird von dem Deckel 60 überdeckt.The other surface of the bottom wall 49 or the remaining surface is covered by the cover 60.

Der Saugstrom 13 wird durch den Saugeinlass 14, dem ein Saugschlauch anordenbar ist, in den Filtersack 48 eingesaugt. Der Filtersack 48 nimmt im Saugstrom 13 enthaltene Partikel auf. Der Saugstrom 13 wird vom Saugmotor 12 erzeugt, der den Saugstrom 13 über den Hauptfilter 61 durch den Saugeinlass 56 hindurch ansaugt. Der Saugeinlass 56 ist strömungsabseitig, beim Sauggerät 10 oberseitig des Hauptfilters 61 angeordnet. Der Saugeinlass 56 ist ein Einlass eines im Querschnitt im Wesentlichen U-förmigen Saugkanalabschnitts 64, der fest im Innenraum 53 des Motorgehäuseteils 30 angeordnet ist. Ein Saugkanalauslass 65 des Saugkanalabschnitts 64 kommuniziert mit einem Luftführungskanaleinlass 66 eines Luftführungskanalabschnitts 67 des Deckels 60. Der Saugkanalauslass 65 und der Luftführungskanaleinlass 66 sind strömungsdicht miteinander verbunden. Zweckmäßigerweise ist zwischen dem Saugkanalauslass 65 und dem Luftführungskanaleinlass 66 eine Dichtung 68 vorgesehen.The suction stream 13 is sucked into the filter bag 48 through the suction inlet 14, to which a suction hose can be arranged. The filter bag 48 picks up particles contained in the suction flow 13. The suction flow 13 is generated by the suction motor 12, which draws the suction flow 13 through the main filter 61 through the suction inlet 56. The suction inlet 56 is arranged downstream of the main filter 61 in the suction device 10. The suction inlet 56 is an inlet of a suction channel section 64 which is essentially U-shaped in cross section and which is arranged fixedly in the interior 53 of the motor housing part 30. A suction duct outlet 65 of the suction duct section 64 communicates with an air duct duct inlet 66 of an air duct duct section 67 of the cover 60. The suction duct outlet 65 and the air duct duct inlet 66 are connected to one another in a flow-tight manner. A seal 68 is expediently provided between the suction duct outlet 65 and the air duct duct inlet 66.

Der Luftführungskanalabschnitt 67 mündet an einer Luft-Auslassöffnung 69. Die Auslassöffnung 69 ist im Wesentlichen zentral am Deckel 60 angeordnet. Die Auslassöffnung 69 ist gegenüber einem Turbineneinlass 70 einer Saugturbine 71 des Motormoduls 58 angeordnet. Die Saugturbine 71 saugt den Saugstrom 13 durch den Turbineneinlass 70 an und bläst ihn nach radial außen durch einen ebenfalls in den Deckel 60 integrierten Ausblaskanal 73 aus. Somit bildet der Luftführungskanalabschnitt 67 einen Ansaugkanal 72. Der Ausblaskanal 73 bildet einen weiteren Luftführungskanalabschnitt 74, wobei die Luftführungskanalabschnitte 67, 74 strömungsdicht voneinander getrennt sind. Hierfür ist zweckmäßigerweise eine Dichtung 75 vorgesehen. Der Luftführungskanalabschnitt 74 umgibt die Auslassöffnung 69 ringförmig, wobei zwischen den Luftführungskanalabschnitten 67, 74 eine Ringwand 76 sowie eine den Ansaugkanal 72 abdeckende Deckwand 77 vorgesehen ist.The air duct section 67 opens at an air outlet opening 69. The outlet opening 69 is essentially arranged centrally on the cover 60. The outlet opening 69 is arranged opposite a turbine inlet 70 of a suction turbine 71 of the motor module 58. The suction turbine 71 draws in the suction flow 13 through the turbine inlet 70 and blows it out radially through a blow-out duct 73 which is also integrated in the cover 60. The air duct duct section 67 thus forms an intake duct 72. The exhaust duct 73 forms a further air duct duct section 74, the air duct duct sections 67, 74 being separated from one another in a flow-tight manner. A seal 75 is expediently provided for this. The air duct section 74 surrounds the outlet opening 69 in an annular manner, an annular wall 76 and a cover wall 77 covering the suction duct 72 being provided between the air duct sections 67, 74.

Die Auslassöffnung 69 ist im Wesentlichen kreisrund und bildeten einen zentralen Ansaugbereich 78 für das Motormodul 58.The outlet opening 69 is essentially circular and formed a central suction area 78 for the motor module 58.

Die Dichtung 75 umgibt den Ansaugbereich 78 und ist zwischen einerseits dem Deckel 60 und andererseits dem Motormodul 58 angeordnet. Die Dichtung 75 liegt an einer Bodenwand 79 des Motormoduls an, an der der Turbineneinlass 70 angeordnet ist.The seal 75 surrounds the suction area 78 and is arranged between the cover 60 on the one hand and the motor module 58 on the other hand. The seal 75 bears against a bottom wall 79 of the engine module, on which the turbine inlet 70 is arranged.

Die Dichtung 75 ist eine elastische Dichtung, die zugleich ein Lager 80 für das Motormodul 58 bildet. Am äußeren Querschnittsumfang des Deckels 60 ist eine Umfangsnut 81 angeordnet, in die ein korrespondierender Ringvorsprung 82 an der Bodenwand 49 eingreift. Optional ist in der Umfangsnut 81 eine weitere Dichtung 83 vorgesehen, so dass der Ausblaskanal 73 dicht verschlossen ist.The seal 75 is an elastic seal, which also forms a bearing 80 for the motor module 58. A circumferential groove 81 is arranged on the outer cross-sectional circumference of the cover 60, into which a corresponding annular projection 82 engages on the bottom wall 49. Optionally, a further seal 83 is provided in the circumferential groove 81, so that the blow-out duct 73 is sealed.

Der von der Saugturbine 71 nach radial außen ausströmende Saugstrom 13 strömt über Schalldämpfer 84, die zugleich optional eine Filterfunktion haben können, hindurch und sodann durch Saügstromauslässe 85 an den Seitenwänden 42 nach außen aus dem Motorgehäuseteil 30 hinaus.The suction flow 13 flowing outward radially outward from the suction turbine 71 flows through silencers 84, which are also optional may have a filter function, and then out through suction flow outlets 85 on the side walls 42 out of the motor housing part 30.

An einer Umfangswand 86, die den ringförmigen Luftführungskanalabschnitt 74 ringförmig umgibt und nach oben vor eine Bodenwand 90 des Luftführungskanalabschnitts 74 vorsteht, sind Schraubaufnahmen 87 zur Aufnahme der Schrauben 59 angeordnet.Screw receptacles 87 for receiving the screws 59 are arranged on a circumferential wall 86, which surrounds the annular air duct section 74 in an annular manner and protrudes upward in front of a bottom wall 90 of the air duct section 74.

Den als Schraubdurchstecköffnungen ausgestalteten Schraubaufnahmen 87 sind Schraubdome oder Einschrauböffnungen 103 an der Saugergehäuse-Wand 49a zugeordnet.Screw domes or screw-in openings 103 on the suction housing wall 49a are assigned to the screw receptacles 87 designed as screw-through openings.

Zweckmäßigerweise sind Schalldämpfermaßnahmen auch beim Deckel 60 vorgesehen. Optional können beispielsweise an der Bodenwand 90 und/oder der Umfangswand 86 schalldämpfende Beschichtungen oder wie beim Ausführungsbeispiel Schalldämpfereinsätze 88 vorgesehen sein. Selbstverständlich können auch beim Luftführungskanalabschnitt 67 Schalldämpfmaßnahmen vorgesehen sein, so z.B. eine schalldämmende Beschichtung der Bodenwand 89 oder dergleichen.Muffler measures are expediently also provided for cover 60. Optionally, for example, sound-absorbing coatings or, as in the exemplary embodiment, silencer inserts 88 can be provided on the bottom wall 90 and / or the peripheral wall 86. Of course, soundproofing measures can also be provided for the air duct section 67, e.g. a soundproof coating of the bottom wall 89 or the like.

Zusätzlich zu der Dichtung 75, die zugleich die Funktion eines elastischen Lagers 80 erfüllt, sind noch zwei weitere Dichtungen 92, 93 im Motoraufnahmeraum 54 vorgesehen, die zugleich Lager oder Lagerungen für das Motormodul 58 bilden. Die Dichtung 92 lagert das Motormodul 58 an seiner dem Turbineneinlass 70 entgegengesetzten Seite. Dort strömt ein Kühlluftstrom 94 von oben her in das Motormodul 58 und insbesondere den Saugmotor 12 ein.In addition to the seal 75, which also fulfills the function of an elastic bearing 80, two further seals 92, 93 are provided in the motor receiving space 54, which at the same time form bearings or bearings for the motor module 58. The seal 92 supports the motor module 58 on its side opposite the turbine inlet 70. There, a cooling air flow 94 flows from above into the engine module 58 and in particular the naturally aspirated engine 12.

Die Dichtung 93 ist an einer Stufe 95 im Motoraufnahmeraum 54 zwischen dem Lager oder der Dichtung 92 und der Dichtung 75 dem Lager 80 angeordnet und lagert das Motormodul 58. Zugleich trennt die Dichtung 93 den Kühlluftstrom 94 vom Saugstrom 13.The seal 93 is arranged at a step 95 in the motor receiving space 54 between the bearing or the seal 92 and the seal 75 and the bearing 80 and supports the motor module 58. At the same time, the seal 93 separates the cooling air flow 94 from the suction flow 13.

Der Kühlluftstrom 94 strömt durch einen Kühllufteinlass 96 an der Frontwand 50 des Motorgehäuseteils 30 in das Saugergehäuse 11 ein. Der Kühlluftstrom 94 strömt zunächst an einer Steuerung 97 des Sauggeräts 10 vorbei uns kühlt diese. Über einen zwischen der Filteraufnahme 63 für den Filtereinsatz 62 und der Deckwand 52 verlaufenden Kühlluftkanal 98 strömt der Kühlluftstrom 94 weiter zum Motoraufnahmeraum 54, in dem er von oben her in einen Kühllufteinlass des Motormoduls 58 einströmt. Der Kühlluftstrom 94 durchströmt den Saugmotor 12 entlang seiner Drehachse und kühlt dabei insbesondere die Ankerwicklungen des Saugmotors 12. Der Kühlluftstrom 94 strömt sodann aus dem Motoraufnahmeraum 54 aus, wobei die entsprechende Kühlluftstrom-Auslassöffnung zwischen den Dichtungen 92 und 93 angeordnet ist. Der Kühlluftstrom 94 strömt nach hinten aus dem Saugergehäuse 11 aus. An der Heckwand 51 des Motorgehäuseteils 30 ist hierfür ein Kühlluftauslass 99 vorgesehen. Selbstverständlich sind auch für die Kühlluftschalldämmmaßnahmen sinnvoll. So ist beispielsweise zwischen dem Motoraufnahmeraum 54 und dem Kühlluftauslass 99 ein Schalldämpfer 100 vorgesehen.The cooling air flow 94 flows into the suction housing 11 through a cooling air inlet 96 on the front wall 50 of the motor housing part 30. The cooling air flow 94 first flows past a controller 97 of the suction device 10 and cools it. The cooling air flow 94 flows further via a cooling air duct 98 running between the filter receptacle 63 for the filter insert 62 and the top wall 52 to the motor receiving space 54, in which it flows from above into a cooling air inlet of the motor module 58. The cooling air flow 94 flows through the naturally aspirated motor 12 along its axis of rotation and in particular cools the armature windings of the naturally aspirated motor 12. The cooling air flow 94 then flows out of the motor receiving space 54, the corresponding cooling air flow outlet opening being arranged between the seals 92 and 93. The cooling air flow 94 flows out of the suction housing 11 to the rear. For this purpose, a cooling air outlet 99 is provided on the rear wall 51 of the motor housing part 30. Of course, cooling air sound insulation measures are also useful. For example, a silencer 100 is provided between the motor receiving space 54 and the cooling air outlet 99.

Das Motormodul 58, bei dem der Kühlluftstrom 94 vom Saugstrom 13 getrennt geführt ist, kann auch als eine sogenannte Bypassturbine bezeichnet werden. Eine solche Bypassturbine ist an sich bekannt, wobei beim erfindungsgemäßen Sauggerät eine innovative Luftführung realisiert ist, die einen Deckel, konkret beim Ausführungsbeispiel den Deckel 60, zum Verschließen einer Montageöffnung für die Bypassturbine integral aufweist.The engine module 58, in which the cooling air flow 94 is guided separately from the suction flow 13, can also be referred to as a so-called bypass turbine. Such a bypass turbine is known per se, an innovative air duct being realized in the suction device according to the invention, which has a cover, specifically the cover 60 in the exemplary embodiment, for closing an assembly opening for the bypass turbine.

Im Bereich der Luftführungsanordnung 55 ist mindestens ein Temperatursensor zur Temperaturüberwachung des Saugstroms 13 und/oder des Kühlluftstroms 94 zweckmäßig. Beispielsweise kann die Abluft/der Saugstrom 13 mittels eines Temperatursensors 101 überwacht werden, der an einer Wandfläche 102 angeordnet ist. Die Wandfläche 102 begrenzt zusammen mit dem Luftführungskanalabschnitt 74. des Deckels 60 den Ausblaskanal 73.In the area of the air guide arrangement 55, at least one temperature sensor for monitoring the temperature of the suction flow 13 and / or the cooling air flow 94 is expedient. For example, the exhaust air / suction flow 13 can be monitored by means of a temperature sensor 101 which is arranged on a wall surface 102. The wall surface 102, together with the air duct section 74 of the cover 60, delimits the blow-out duct 73.

Claims (13)

  1. Suction device for eliminating particles from a suction flow (13), with a suction motor (12) for generating the suction flow (13), wherein the suction motor (12) is a part of a motor module (58) and located in a motor location chamber (54) of a vacuum cleaner housing (11) of the suction device (10), wherein the vacuum cleaner housing (11) has an air ducting assembly (55) communicating with the motor location chamber (54), wherein the motor location chamber (54) has, at a vacuum cleaner housing wall (49a) of the vacuum cleaner housing (11), an installation opening (57), through which the motor module (58) can be removed from the motor location chamber (54) or installed into the motor location chamber (54), and wherein the vacuum cleaner housing has a cover (60) for closing the motor location chamber (54), wherein the vacuum cleaner housing (11) comprises a motor housing part (30) having the motor location chamber (54) and a filter housing part (31) releasably connectable to the motor housing part (30), characterised in that the vacuum cleaner housing wall (49a) with the installation opening (57) is a side wall facing the filter housing part (31), in particular a base wall (49) of the motor housing part (30).
  2. Suction device according to claim 1, characterised in that the cover (60) has at least one air ducting section (67, 74) for guiding air to the motor module (58) and/or away from the motor module (58).
  3. Suction device according to claim 2, characterised in that the at least one air ducting section (67, 74) comprises an intake passage (72) for guiding the suction flow (13) to the motor module (58), in particular in central intake region (78) of the motor module (58), and/or for guiding cooling air (94) to the motor module (58).
  4. Suction device according to claim 2 or 3, characterised in that the at least one air ducting section (67, 74) comprises a blow-out passage (73) surrounding the motor module (58) in a partially or completely annular fashion for guiding the suction flow (13) from the motor module (58) to a suction flow outlet (85) of the vacuum cleaner housing (11).
  5. Suction device according to any of the preceding claims, characterised in that the air ducting assembly (55) has at least one seal (75), in particular for separating the blow-out passage (73) from the intake passage (72) and/or for separating a cooling air flow (94) to the motor module (58) from the suction flow (13).
  6. Suction device according to claim 5, characterised in that the at least one seal (75) is located at the cover (60) or between the cover (60) and the motor location chamber (54).
  7. Suction device according to any of the preceding claims, characterised in that at least one bearing (80, 92, 93) for mounting the motor module (58) is provided in the motor location chamber (54) and/or at the cover (60).
  8. Suction device according to claim 7, characterised in that the at least one bearing (80) is an elastic bearing for the in particular floating mounting of the motor module (58).
  9. Suction device according to claim 7 or, characterised in that the at least one bearing (80) comprises or forms at least one seal (75) of the air ducting assembly (55).
  10. Suction device according to any of the preceding claims, characterised in that the motor module (58) has at least one turbine (71).
  11. Suction device according to any of the preceding claims, characterised in that the cover (60) exclusively covers the motor location chamber (54) and/or in that the motor module (58) integrally comprises the cover (60).
  12. Suction device according to any of the preceding claims, characterised in that the motor module (58) can exclusively be removed from the motor location chamber (54) or installed into the motor location chamber (54) through the installation opening (57).
  13. Suction device according to any of the preceding claims, characterised in that the filter housing part (31) forms a housing lower part (33), which can travel on castors in particular, and the motor housing part (30) forms a housing upper part (32) located on the housing lower part (33).
EP10002669.9A 2009-03-21 2010-03-13 Suction device with engine module Active EP2229861B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009015644A DE102009015644A1 (en) 2009-03-21 2009-03-21 Suction unit with motor module

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EP2229861A2 EP2229861A2 (en) 2010-09-22
EP2229861A3 EP2229861A3 (en) 2014-11-05
EP2229861B1 true EP2229861B1 (en) 2020-04-01

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DE (1) DE102009015644A1 (en)
DK (1) DK2229861T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020104093U1 (en) 2020-07-15 2021-02-16 Josef Kränzle GmbH & Co. KG Motor module unit for a suction device and suction device

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US2409230A (en) 1944-05-03 1946-10-15 Westinghouse Electric Corp Suction cleaning apparatus
US3775951A (en) 1971-10-20 1973-12-04 Central Quality Ind Inc Vacuum cleaner
DE2406915A1 (en) 1974-02-14 1975-08-28 Miele & Cie Vacuum cleaner with resiliently mounted motor blower - has a divided housing with packing for blower to minimize noise
EP0557978A1 (en) 1992-02-28 1993-09-01 Fedag Suction cleaning device
DE69224165T2 (en) 1991-12-03 1998-08-20 Suiden Co Ltd vacuum cleaner
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DE10130995A1 (en) 2001-06-27 2003-01-16 Festool Gmbh suction device
EP1426004A2 (en) 2002-12-03 2004-06-09 Izumi Products Company Electric vacuum cleaner
US20050108849A1 (en) 2003-11-26 2005-05-26 Lam Raymond H. Water filtration vacuum cleaner

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DE2734894C2 (en) * 1977-08-03 1984-05-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt vacuum cleaner
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US1458602A (en) 1919-07-09 1923-06-12 William H Upton Vacuum cleaner
US2409230A (en) 1944-05-03 1946-10-15 Westinghouse Electric Corp Suction cleaning apparatus
US3775951A (en) 1971-10-20 1973-12-04 Central Quality Ind Inc Vacuum cleaner
DE2406915A1 (en) 1974-02-14 1975-08-28 Miele & Cie Vacuum cleaner with resiliently mounted motor blower - has a divided housing with packing for blower to minimize noise
DE69224165T2 (en) 1991-12-03 1998-08-20 Suiden Co Ltd vacuum cleaner
EP0557978A1 (en) 1992-02-28 1993-09-01 Fedag Suction cleaning device
KR20000058687A (en) 2000-06-24 2000-10-05 이경우 Multi function electric vacuum cleaner
DE10130995A1 (en) 2001-06-27 2003-01-16 Festool Gmbh suction device
EP1426004A2 (en) 2002-12-03 2004-06-09 Izumi Products Company Electric vacuum cleaner
US20050108849A1 (en) 2003-11-26 2005-05-26 Lam Raymond H. Water filtration vacuum cleaner

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ANONYMOUS: "Naß- / Trockensauger ockensauger Ventos 25 Ventos 35", KRÄNZLE, 1 December 1998 (1998-12-01), pages 1 - 40, XP055972472, Retrieved from the Internet <URL:https://www.schmitz-kraenzle.de/pdf/Kraenzle-E-Teile-und-Betriebsanleitungen/Industriesauger/kraenzle_Ventos_25-35.pdf> [retrieved on 20221018]

Also Published As

Publication number Publication date
DK2229861T3 (en) 2020-05-04
EP2229861A2 (en) 2010-09-22
EP2229861A3 (en) 2014-11-05
DE102009015644A1 (en) 2010-09-30

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