EP2436295B1 - Domestic appliance with motor damping - Google Patents

Domestic appliance with motor damping Download PDF

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Publication number
EP2436295B1
EP2436295B1 EP11181182.4A EP11181182A EP2436295B1 EP 2436295 B1 EP2436295 B1 EP 2436295B1 EP 11181182 A EP11181182 A EP 11181182A EP 2436295 B1 EP2436295 B1 EP 2436295B1
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EP
European Patent Office
Prior art keywords
composite material
plastic
household appliance
leather
appliance according
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EP11181182.4A
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German (de)
French (fr)
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EP2436295A3 (en
EP2436295A2 (en
Inventor
Marko Geis
Thomas GÖPPNER
Roland Illig
Thomas Seith
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication of EP2436295A2 publication Critical patent/EP2436295A2/en
Publication of EP2436295A3 publication Critical patent/EP2436295A3/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
    • 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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the invention relates to a household appliance, in particular a floor cleaning device; according to the preamble of claim 1.
  • cover elements serve to achieve electrical safety and / or noise insulation and / or thermal insulation.
  • cover elements of this type also frequently assume the function of a guide element which directs an air flow, in particular an air flow to be blown out, in a desired direction.
  • the invention has for its object to provide a household appliance with an electric motor and a cover for the electric motor, in which the cover is simple and inexpensive to manufacture and has improved noise and thermal insulation properties.
  • a household appliance in particular a floor cleaning device, comprises an electric motor and at least one cover element for the electric motor, the at least one cover element consisting at least in partial areas of a composite material which contains at least one plastic and leather.
  • Leather is known to be an animal skin chemically preserved by tanning, the natural fiber structure of which is largely preserved. It is a supple, tough, relatively strong, durable and versatile material. Leather is relatively impermeable to water, yet it is breathable, ie sufficiently permeable to air and water vapor.
  • Such a composite material comprising at least one plastic and leather, is characterized by increased thermal and acoustic insulation compared to conventional cover elements made solely of plastics, but is nevertheless simple and inexpensive, e.g. can be processed in an injection molding process.
  • the plastic can e.g. a plastic based on polyethylene or polypropylene can be used.
  • the degree of hardness of the composite material can be varied within a wide range by using an appropriate plastic.
  • the cover element can take on a variety of tasks. For example, it can be used directly for noise insulation and / or thermal insulation. In this case an improved insulation effect is achieved through the use of the composite material. This can either be used to further reduce the noise perceptible outside the cover and / or the heat radiated to the outside, or to achieve the desired heat and noise insulation with a lower material thickness of the cover element and the associated material savings.
  • a cover element can at least primarily also be used for other purposes, such as to achieve electrical safety or, in the case of a floor cleaning device, also to guide an air stream, in particular an air stream to be blown out.
  • additional measures for heat and noise insulation may be dispensed with due to the improved heat and sound damping properties of the composite material.
  • the composite material has leather fibers which are embedded in the at least one plastic.
  • the plastic acts as a supporting matrix for the leather fibers so that the cover element can also withstand mechanical loads.
  • One embodiment of the invention provides that the volume fraction of the leather in the composite material is 10 to 70%.
  • the lower limit is determined by the desired additional insulation effect and the upper limit by the required mechanical strength.
  • the cover element comprises a core element and at least one sheath element surrounding the core element at least in partial areas, wherein at least the core element and / or at least one of the sheath elements consists of the composite material.
  • a jacket element or core element not consisting of the composite material also consists of a plastic or another plastic composite material different from the composite material.
  • the further plastic composite material can also be a further leather composite material which differs from the composite material in that it has a different volume fraction of the leather and / or another plastic component.
  • the core element and the casing element can contain different plastic components, so that the cover element can be optimally adapted to the respective specific requirements.
  • FIG. 1 shows a sectional view of a household appliance according to the invention in the form of a vacuum cleaner.
  • FIG 1 is a sectional view of a vacuum cleaner 1 which has a housing 2.
  • a dust chamber 3 in which an exchangeable filter bag can be arranged.
  • an electric motor in the form of a blower motor 4 is arranged in the housing 2.
  • An air sucked in by the blower motor 4 gets into the easy-change filter bag during suction via a floor nozzle, not shown, and a suction hose, not shown, which filters out the dust and / or dirt particles, then passes through the blower motor 4, a blow-out filter 5, and finally passes through outlet openings in the form of a Exhaust grille 6 back out of the housing 2 of the vacuum cleaner 1.
  • the blower motor 4 is surrounded in a partial area by a cover element 7, which is often also referred to as a capsule.
  • This cover element 7 serves, on the one hand, to guide the air flow to be blown out, which in Figure 1 is shown in the form of arrows 8.
  • the cover element 7 is also used for heat and noise insulation.
  • the electrical element of the vacuum cleaner 1 is also ensured by the cover element, which in the exemplary embodiment shown forms a type of motor housing for the blower motor 4 together with parts of the housing 2 of the vacuum cleaner. Since the general structure of a vacuum cleaner is generally known, it will not be dealt with otherwise.
  • the cover element 7 is e.g. manufactured by an injection molding process from a composite material which contains at least one plastic and leather.
  • the leather can e.g. be embedded in the plastic in the form of leather fibers.
  • the leather fibers can be obtained from leather waste, for example.
  • Suitable plastics are e.g. Polyethylene or polypropylene-based plastics.
  • the volume fraction of the leather is preferably in a range of 10-70%.
  • the cover element 7 can also have a core element and at least one jacket element at least partially surrounding this core element. It is then possible to manufacture only one of the elements from the leather composite material and the other element from a different material, such as a pure plastic or another plastic composite material, in particular also another leather composite material. Depending on the specific requirements, a plastic that is different from the plastic of the leather composite material can be used.
  • the design of the respective other plastic-based element offers the advantage that the entire cover element 7 can then still be manufactured in one operation, for example with the aid of an injection molding process.
  • the illustrated embodiment of the vacuum cleaner has only one cover element 7.
  • cover elements can also be provided, which then consist entirely or partially of the leather composite material.
  • the invention has been explained with the aid of a vacuum cleaner, but is of course also applicable to all other household appliances with an electric motor, in which noise and / or thermal insulation are relevant.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Motor Or Generator Frames (AREA)

Description

Die Erfindung betrifft ein Haushaltsgerät, insbesondere ein Bodenreinigungsgerät; nach dem Oberbegriff von Patentanspruch 1.The invention relates to a household appliance, in particular a floor cleaning device; according to the preamble of claim 1.

Viele Haushaltsgeräte weisen einen Elektromotor auf, welcher zumindest in Teilbereichen von einem oder mehreren Abdeckelementen umgeben ist. Die Abdeckelemente dienen dabei der Erreichung von elektrischer Sicherheit und/oder zur Geräuschdämmung und/ oder zur Wärmedämmung. Bei Bodenreinigungsgeräten übernehmen derartige Abdeckungselemente auch häufig die Funktion eines Führungselements, welches einen Luftstrom, insbesondere einen auszublasenden Luftstrom, in eine gewünschte Richtung lenkt.Many household appliances have an electric motor, which is at least partially surrounded by one or more cover elements. The cover elements serve to achieve electrical safety and / or noise insulation and / or thermal insulation. In floor cleaning devices, cover elements of this type also frequently assume the function of a guide element which directs an air flow, in particular an air flow to be blown out, in a desired direction.

Bei herkömmlichen Bodenreinigungsgeräten werden Geräusche insbesondere dadurch gedämpft, dass einzelne geräuschemittierende Bauteile des Bodenreinigungsgeräts von einem Gehäuse des Bodenreinigungsgeräts entkoppelt werden. Aus der Druckschrift WO 2010/ 051 930 A1 ist beispielsweise eine Anordnung bekannt, bei dem zum einen die Motor-Gebläse-Einheit über eine Vibrationen aufnehmende und dämpfende Haltevorrichtung mit dem Gehäuse des Bodenreinigungsgeräts verbunden ist und gleichzeitig ein von der Motor-Gebläse-Einheit angetriebener Lüfter über eine weitere Vibrationen aufnehmende und dämpfende Haltevorrichtung an die Motor-Gebläse-Einheit gekoppelt ist. Dadurch werden die Vibrationen möglichst gering gehalten und eine Übertragung der Vibrationen auf das Gehäuse des Bodenreinigungsgeräts stark vermindert.In conventional floor cleaning devices, noises are damped in particular by decoupling individual noise-emitting components of the floor cleaning device from a housing of the floor cleaning device. From the publication WO 2010/051 930 A1 For example, an arrangement is known in which the motor-blower unit is connected to the housing of the floor cleaning device via a vibration-absorbing and damping holding device, and at the same time a fan driven by the motor-blower unit is connected via a further vibration-absorbing and damping holding device is coupled to the motor-blower unit. As a result, the vibrations are kept as low as possible and transmission of the vibrations to the housing of the floor cleaning device is greatly reduced.

Eine ähnlich wirkende Konstruktion ist des Weiteren aus der Druckschrift US 2 021 298 A bekannt, bei der eine Motor-Gebläse-Einheit vertikal über Vibrationen aufnehmende Federn an ein Gehäuse des Bodenreinigungsgeräts aufgehängt ist. Durch die Aufhängung werden Vibrationen aufgenommen, die durch eine ungleichmäßige Belastung der Motor-Gebläse-Einheit verursacht werden. Auch hier werden die Vibrationen möglichst gering gehalten und eine Übertragung der Vibrationen auf das Gehäuse des Bodenreinigungsgeräts stark vermindert.A similar construction is also from the publication US 2,021,298 A. is known in which a motor-blower unit is suspended vertically via vibration-absorbing springs on a housing of the floor cleaning device. The suspension absorbs vibrations caused by an uneven load on the motor-blower unit. Here too, the vibrations are kept as low as possible and transmission of the vibrations to the housing of the floor cleaning device is greatly reduced.

Der Erfindung liegt die Aufgabe zugrunde, ein Haushaltsgerät mit einem Elektromotor und einem Abdeckelement für den Elektromotor anzugeben, bei dem das Abdeckelement einfach und kostengünstig herstellbar ist und verbesserte Geräusch- und Wärmedämmungseigenschaften aufweist.The invention has for its object to provide a household appliance with an electric motor and a cover for the electric motor, in which the cover is simple and inexpensive to manufacture and has improved noise and thermal insulation properties.

Diese Aufgabe wird erfindungsgemäß durch ein Haushaltsgerät mit den Merkmalen gemäß Patentanspruch 1 gelöst.This object is achieved according to the invention by a household appliance with the features according to patent claim 1.

Demgemäß umfasst ein Haushaltsgerät, insbesondere ein Bodenreinigungsgerät, einen Elektromotor und mindestens ein Abdeckelement für den Elektromotor, wobei das mindestens eine Abdeckelement zumindest in Teilbereichen aus einem Verbundmaterial besteht, welches zumindest einen Kunststoff und Leder enthält.Accordingly, a household appliance, in particular a floor cleaning device, comprises an electric motor and at least one cover element for the electric motor, the at least one cover element consisting at least in partial areas of a composite material which contains at least one plastic and leather.

Leder ist bekanntlich eine durch Gerbung chemisch haltbar gemachte Tierhaut, deren natürliche Faserstruktur weitgehend erhalten ist. Es ist ein geschmeidiges, zähes, relativ festes, haltbares und vielseitig einsetzbares Material. Leder ist relativ undurchlässig für Wasser, trotzdem ist es atmungsaktiv, d. h. ausreichend durchlässig für Luft und Wasserdampf.Leather is known to be an animal skin chemically preserved by tanning, the natural fiber structure of which is largely preserved. It is a supple, tough, relatively strong, durable and versatile material. Leather is relatively impermeable to water, yet it is breathable, ie sufficiently permeable to air and water vapor.

Ein derartiges, zumindest einen Kunststoff und Leder umfassendes, Verbundmaterial zeichnet sich durch eine im Vergleich zu herkömmlichen, allein aus Kunststoffen gefertigten Abdeckelementen, erhöhte Wärme- und Schalldämmung aus, ist aber dennoch einfach und kostengünstig, z.B. im Rahmen eines Spritzgussverfahrens, verarbeitbar. Als Kunststoff kann dabei z.B. ein Kunststoff auf Polyethylen-Basis oder Polypropylen-Basis Verwendung finden. Durch Verwendung eines entsprechenden Kunststoffes kann der Härtegrad des Verbundmaterials in einem weiten Bereich variiert werden.Such a composite material, comprising at least one plastic and leather, is characterized by increased thermal and acoustic insulation compared to conventional cover elements made solely of plastics, but is nevertheless simple and inexpensive, e.g. can be processed in an injection molding process. The plastic can e.g. a plastic based on polyethylene or polypropylene can be used. The degree of hardness of the composite material can be varied within a wide range by using an appropriate plastic.

Das Abdeckelement kann vielfältige Aufgaben übernehmen. So kann es beispielsweise unmittelbar zur Geräuschdämmung und/oder zur Wärmedämmung dienen. In diesem Fall wird durch den Einsatz des Verbundmaterials ein verbesserter Dämmungseffekt erreicht. Dieser kann entweder dazu genutzt werden, das außerhalb der Abdeckung wahrnehmbare Geräusch und/oder die nach außen abgestrahlte Wärme weiter abzusenken oder auch um die gewünschte Wärme- und Geräuschdämmung mit geringerer Materialstärke des Abdeckelements und damit einhergehender Materialersparnis zu erreichen.The cover element can take on a variety of tasks. For example, it can be used directly for noise insulation and / or thermal insulation. In this case an improved insulation effect is achieved through the use of the composite material. This can either be used to further reduce the noise perceptible outside the cover and / or the heat radiated to the outside, or to achieve the desired heat and noise insulation with a lower material thickness of the cover element and the associated material savings.

Neben der Geräusch- und Wärmedämmung kann ein Abdeckelement aber zumindest primär auch anderen Zwecken, wie z.B. einer Erzielung von elektrischer Sicherheit oder im Falle eines Bodenreinigungsgerätes auch der Führung eines Luftstromes, insbesondere eines auszublasenden Luftstromes, dienen. In diesem Fall kann aufgrund der verbesserten Wärme- und Schalldämpfungseigenschaften des Verbundmaterials ggf. auf zusätzliche Maßnahmen zur Wärme- und Geräuschdämmung verzichtet werden. Gemäß einer Ausführungsform der Erfindung weist das Verbundmaterial Lederfasern auf, welche in den zumindest einen Kunststoff eingebettet sind. In diesem Fall wirkt der Kunststoff als stützende Matrix für die Lederfasern so dass das Abdeckelement auch mechanischen Belastungen gut standhalten kann.In addition to noise and thermal insulation, a cover element can at least primarily also be used for other purposes, such as to achieve electrical safety or, in the case of a floor cleaning device, also to guide an air stream, in particular an air stream to be blown out. In this case, additional measures for heat and noise insulation may be dispensed with due to the improved heat and sound damping properties of the composite material. According to one embodiment of the invention, the composite material has leather fibers which are embedded in the at least one plastic. In this case, the plastic acts as a supporting matrix for the leather fibers so that the cover element can also withstand mechanical loads.

Eine Ausführungsform der Erfindung sieht vor, dass der Volumenanteil des Leders an dem Verbundmaterial 10 bis 70 % beträgt. Der untere Grenzwert wird dabei von der gewünschten zusätzlichen Dämmwirkung und der obere Grenzwert durch die erforderliche mechanische Belastbarkeit bestimmt.One embodiment of the invention provides that the volume fraction of the leather in the composite material is 10 to 70%. The lower limit is determined by the desired additional insulation effect and the upper limit by the required mechanical strength.

Um besonderen Umgebungsbedingungen, z.B. hinsichtlich mechanischer Belastbarkeit oder elektrischer Sicherheit, Rechnung zu tragen, kann es vorgesehen, sein dass das Abdeckelement ein Kernelement und mindestens ein das Kernelement zumindest in Teilbereichen umgebendes Mantelelement umfasst, wobei zumindest das Kernelement und/oder mindestens eines der Mantelelemente aus dem Verbundwerkstoff besteht.For special environmental conditions, e.g. With regard to mechanical resilience or electrical safety, it can be provided that the cover element comprises a core element and at least one sheath element surrounding the core element at least in partial areas, wherein at least the core element and / or at least one of the sheath elements consists of the composite material.

Um auch in diesem Fall eine leichte Verarbeitbarkeit und damit aufwandsarme Herstellung, z.B. durch Spritzguss, zu gewährleisten, ist es vorteilhaft, wenn ein nicht aus dem Verbundwerkstoff bestehendes Mantelelement oder Kernelement auch aus einem Kunststoff oder einem weiteren, von dem Verbundmaterial verschiedenen, Kunststoff-Verbundmaterial besteht. Das weitere Kunststoff-Verbundmaterial kann dabei auch ein weiteres Leder-Verbundmaterial sein, welches sich von dem Verbundmaterial durch einen unterschiedlichen Volumenanteil des Leders und/oder eine andere Kunststoffkomponente unterscheidet. Grundsätzlich können das Kernelement und das Mantelelement unterschiedliche Kunststoffkomponenten enthalten, so dass das Abdeckelement optimal an die jeweiligen konkreten Anforderungen angepasst werden kann.In this case, too, in order to be easy to process and therefore easy to manufacture, e.g. To ensure by injection molding, it is advantageous if a jacket element or core element not consisting of the composite material also consists of a plastic or another plastic composite material different from the composite material. The further plastic composite material can also be a further leather composite material which differs from the composite material in that it has a different volume fraction of the leather and / or another plastic component. In principle, the core element and the casing element can contain different plastic components, so that the cover element can be optimally adapted to the respective specific requirements.

Weitere Merkmale und Vorteile der Erfindung werden nachfolgend anhand eines Ausführungsbeispieles mit Bezugnahme auf die beigefügte Figur erläutert, welche eine Schnittdarstellung eines erfindungsgemäßen Haushaltsgeräts in Form eines Staubsaugers zeigt.Further features and advantages of the invention are explained below using an exemplary embodiment with reference to the accompanying figure, which shows a sectional view of a household appliance according to the invention in the form of a vacuum cleaner.

In Figur 1 ist in Schnittdarstellung ein Staubsauger 1 dargestellt welcher ein Gehäuse 2 aufweist. Im Gehäuse 2 befindet sich ein Staubraum 3, in welchem ein Wechselfilterbeutel angeordnet werden kann. Darüber hinaus ist in dem Gehäuse 2 ein Elektromotor in Form eines Gebläsemotors 4 angeordnet. Eine vom Gebläsemotor 4 angesaugte Luft gelangt beim Saugen über eine nicht dargestellte Bodendüse und einen nicht dargestellten Saugschlauch in den Wechselfilterbeutel , der die Staub- und/oder Schmutzpartikel herausfiltert, passiert dann den Gebläsemotor 4, ein Ausblasfilter 5 und gelangt letztendlich über Auslassöffnungen in Form eines Ausblasgitters 6 wieder aus dem Gehäuse 2 des Staubsaugers 1 nach außen.In Figure 1 is a sectional view of a vacuum cleaner 1 which has a housing 2. In the housing 2 there is a dust chamber 3, in which an exchangeable filter bag can be arranged. In addition, an electric motor in the form of a blower motor 4 is arranged in the housing 2. An air sucked in by the blower motor 4 gets into the easy-change filter bag during suction via a floor nozzle, not shown, and a suction hose, not shown, which filters out the dust and / or dirt particles, then passes through the blower motor 4, a blow-out filter 5, and finally passes through outlet openings in the form of a Exhaust grille 6 back out of the housing 2 of the vacuum cleaner 1.

Der Gebläsemotor 4 ist in einem Teilbereich von einem Abdeckelement 7 umgeben, welches häufig auch als Kapsel bezeichnet wird. Dieses Abdeckelement 7 dient zum einen der Führung des auszublasenden Luftstromes, welcher in Figur 1 in Form von Pfeilen 8 dargestellt ist. Zum anderen dient das Abdeckelement 7 aber auch zur Wärme- und Geräuschdämmung. Darüber hinaus wird durch das Abdeckelement, welches in dem dargestellten Ausführungsbeispiel zusammen mit Teilen des Gehäuses 2 des Staubsaugers eine Art Motorgehäuse für den Gebläsemotor 4 bildet, auch die elektrische Sicherheit des Staubsaugers 1 gewährleistet. Da der allgemeine Aufbau eines Staubsaugers allgemein bekannt ist, wird darauf ansonsten nicht weiter eingegangen.The blower motor 4 is surrounded in a partial area by a cover element 7, which is often also referred to as a capsule. This cover element 7 serves, on the one hand, to guide the air flow to be blown out, which in Figure 1 is shown in the form of arrows 8. On the other hand, the cover element 7 is also used for heat and noise insulation. In addition, the electrical element of the vacuum cleaner 1 is also ensured by the cover element, which in the exemplary embodiment shown forms a type of motor housing for the blower motor 4 together with parts of the housing 2 of the vacuum cleaner. Since the general structure of a vacuum cleaner is generally known, it will not be dealt with otherwise.

Um eine möglichst gute Geräusch- und Wärmedämmung zu erreichen, ist das Abdeckelement 7 z.B. durch ein Spritzgussverfahren aus einem Verbundmaterial gefertigt, welches zumindest einen Kunststoff und Leder enthält. Das Leder kann dabei z.B. in Form von Lederfasern in den Kunststoff eingebettet sein. Die Lederfasern können beispielsweise aus Lederabfällen gewonnnen werden. Als Kunststoff eignen sich z.B. Kunststoffe auf Polyethylen- oder Polypropylen-Basis. Der Volumenanteil des Leders liegt vorzugsweise in einem Bereich von 10 - 70 %.In order to achieve the best possible noise and heat insulation, the cover element 7 is e.g. manufactured by an injection molding process from a composite material which contains at least one plastic and leather. The leather can e.g. be embedded in the plastic in the form of leather fibers. The leather fibers can be obtained from leather waste, for example. Suitable plastics are e.g. Polyethylene or polypropylene-based plastics. The volume fraction of the leather is preferably in a range of 10-70%.

Um speziellen Anforderungen des Staubsaugers 1 oder allgemein eines Haushaltsgerätes gerecht zu werden, kann das Abdeckelement 7 auch ein Kernelement und mindestens ein dieses Kernelement zumindest teilweise umgebendes Mantelelement aufweisen. Es ist dann möglich, nur eines der Elemente aus dem Leder-Verbundmaterial zu fertigen und das jeweils andere Element aus einem anderen Material, wie z.B. einem reinen Kunststoff oder einem anderen Kunststoff-Verbundmaterial, insbesondere auch einem anderen Leder-Verbundmaterial, herzustellen. Je nach den konkreten Anforderungen kann dabei auch ein im Vergleich zum Kunststoff des Leder-Verbundmaterials unterschiedlicher Kunststoff verwendet werden.In order to meet the special requirements of the vacuum cleaner 1 or a household appliance in general, the cover element 7 can also have a core element and at least one jacket element at least partially surrounding this core element. It is then possible to manufacture only one of the elements from the leather composite material and the other element from a different material, such as a pure plastic or another plastic composite material, in particular also another leather composite material. Depending on the specific requirements, a plastic that is different from the plastic of the leather composite material can be used.

Die Ausführung des jeweils anderen Elements auf Kunststoffbasis bietet den Vorteil, dass dann das gesamte Abdeckelement 7 trotzdem in einem Arbeitsgang z.B. mit Hilfe eines Spritzgussverfahrens, gefertigt werden kann.The design of the respective other plastic-based element offers the advantage that the entire cover element 7 can then still be manufactured in one operation, for example with the aid of an injection molding process.

Die dargestellte Ausführungsform des Staubsaugers weist nur ein Abdeckelement 7 auf. Selbstverständlich können aber auch mehrere Abdeckelemente vorgesehen sein, welche dann alle oder teilweise aus dem Leder-Verbundmaterial bestehen.The illustrated embodiment of the vacuum cleaner has only one cover element 7. Of course, several cover elements can also be provided, which then consist entirely or partially of the leather composite material.

Die Erfindung wurde anhand eines Staubsaugers erläutert ist aber selbstverständlich auch auf alle anderen Haushaltsgeräte mit einem Elektromotor anwendbar, bei welchen Geräusch- und/oder Wärmedämmung eine Relevanz besitzen.The invention has been explained with the aid of a vacuum cleaner, but is of course also applicable to all other household appliances with an electric motor, in which noise and / or thermal insulation are relevant.

Verwendete Bezugszeichen:Reference symbols used:

11
Staubsaugervacuum cleaner
22
Gehäusecasing
33
Staubraumdust chamber
44
Gebläsemotorblower motor
55
Ausblasfilterexhaust filter
66
Ausblasgitterexhaust grille
77
Abdeckelementcover
88th
Luftstromairflow

Claims (9)

  1. Household appliance, with
    - an electric motor (4) and
    - at least one cover element (7) for the electric motor (4),
    characterised in that the at least one cover element (7), at least in subregions, consists of a composite material which contains at least one plastic and leather.
  2. Household appliance according to claim 1, characterised in that the household appliance is a floor cleaning appliance (1), wherein the cover element (7) is configured for guiding an air current.
  3. Household appliance according to claim 1 or 2, characterised in that the cover element (7) is configured to insulate noise and/or heat.
  4. Household appliance according to one of claims 1 to 3, characterised in that the composite material has leather fibres, which are embedded in the at least one plastic.
  5. Household appliance according to one of the preceding claims, characterised in that the volume portion of the leather on the composite material amounts to 10 to 70%.
  6. Household appliance according to one of the preceding claims, characterised in that the cover element (7) comprises a core element and at least one peripheral element surrounding the core element at least in subregions, wherein at least the core element and/or at least one of the peripheral elements consists of the composite material.
  7. Household appliance according to claim 6, characterised in that a peripheral element or core element not consisting of the composite material consists of a plastic or a further plastic-composite material.
  8. Household appliance according to claim 7, characterised in that the plastic of the composite material and the plastic of the core element or peripheral element not consisting of the composite material are different.
  9. Household appliance according to one of the preceding claims, characterised in that the cover element is produced by an injection moulding method.
EP11181182.4A 2010-09-29 2011-09-14 Domestic appliance with motor damping Active EP2436295B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010041682A DE102010041682B3 (en) 2010-09-29 2010-09-29 household appliance

Publications (3)

Publication Number Publication Date
EP2436295A2 EP2436295A2 (en) 2012-04-04
EP2436295A3 EP2436295A3 (en) 2017-04-19
EP2436295B1 true EP2436295B1 (en) 2020-02-19

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EP11181182.4A Active EP2436295B1 (en) 2010-09-29 2011-09-14 Domestic appliance with motor damping

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CN106073631B (en) * 2016-08-10 2019-01-11 天佑电器（苏州）有限公司 A kind of noise reduction structure of motor

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US2021298A (en) * 1932-03-14 1935-11-19 Electrolux Corp Vacuum cleaner
EP0957740A1 (en) * 1995-10-10 1999-11-24 Nilfisk A/S A silencer for a suction cleaner
EP2373204B1 (en) * 2008-11-05 2015-07-29 Aktiebolaget Electrolux Vacuum cleaner

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EP2436295A3 (en) 2017-04-19
DE102010041682B3 (en) 2011-11-17
EP2436295A2 (en) 2012-04-04

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