EP3496584A1 - Capsule insonorisante d'un bloc moteur de soufflerie d'un aspirateur, ainsi qu'aspirateur - Google Patents

Capsule insonorisante d'un bloc moteur de soufflerie d'un aspirateur, ainsi qu'aspirateur

Info

Publication number
EP3496584A1
EP3496584A1 EP17751010.4A EP17751010A EP3496584A1 EP 3496584 A1 EP3496584 A1 EP 3496584A1 EP 17751010 A EP17751010 A EP 17751010A EP 3496584 A1 EP3496584 A1 EP 3496584A1
Authority
EP
European Patent Office
Prior art keywords
capsule
vacuum cleaner
noise
motor unit
reducing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17751010.4A
Other languages
German (de)
English (en)
Inventor
Jonathan DEGEN
Till NOWAK
Ralf Dudek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carcoustics Techconsult GmbH
Original Assignee
Carcoustics Techconsult GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carcoustics Techconsult GmbH filed Critical Carcoustics Techconsult GmbH
Publication of EP3496584A1 publication Critical patent/EP3496584A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • 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

  • Noise-reducing capsule for holding a fan motor unit of a vacuum cleaner and vacuum cleaner The present utility model application relates to the technical field of reducing noise emissions in vacuum cleaners.
  • a noise-reducing capsule for accommodating a fan motor unit of a vacuum cleaner and to a vacuum cleaner with a vacuum cleaner housing and a fan motor unit arranged in the vacuum cleaner housing, wherein the fan motor unit is arranged in a noise-reducing capsule.
  • a vacuum cleaner which comprises a fan motor unit which is arranged in a noise-reducing capsule.
  • the noise-reducing capsule consists of two plastic halves, which can be assembled into a capsule, and which receive the blower motor unit of the vacuum cleaner in itself.
  • the capsule develops a noise-reducing effect by forming a flow path for the amount of air delivered by the fan motor unit, along which the air flow leaving the fan motor unit is deflected by at least 90 ° before it leaves the vacuum cleaner housing.
  • Object of the present invention is therefore to provide a noise-reducing capsule for a blower motor unit of a vacuum cleaner, which allows to realize a vacuum cleaner with advantageous acoustic emission values. It is another object of the present invention to provide a vacuum cleaner with advantageous acoustic emission values.
  • a noise-reducing capsule for receiving a fan motor unit of a vacuum cleaner.
  • This fan motor unit is for generating an air flow to provide a suction force of the vacuum cleaner.
  • gers and includes a blower fan and an electric motor for driving the blower fan.
  • the noise-reducing capsule comprises a molded foam part z. B. from a mixed or closed-cell foam, said molded foam part forms a mechanical support of the fan motor unit relative to a blower motor unit enclosing the vacuum cleaner housing.
  • the molded foam part enclosed by the noise reducing capsule achieves effective mechanical decoupling of the fan motor unit and the vacuum cleaner housing. In this way, the transmission of mechanical vibrations of the operating fan motor unit to the vacuum cleaner housing can be very effectively reduced. Overall, this leads to a significantly reduced noise emission of a vacuum cleaner whose fan motor unit is arranged in a noise-reducing capsule according to the invention.
  • the capsule comprises one or more molded foam parts from a z. B. mixed or closed-cell foam, wherein the one or more molded foam parts form the mechanical support of the fan motor unit relative to a blower motor unit enclosing the vacuum cleaner housing.
  • Other components for a mechanical support of the fan motor unit relative to the vacuum cleaner housing omitted.
  • a noise-reducing capsule according to the invention can not only comprise a molded foam part made of a foam but, on the whole, can also be designed substantially as a molded foam part. It is understood that all embodiments described in the context of the present application, which relate to a specific embodiment relate to the molded foam part of the capsule, can be transferred directly to embodiments of the capsule according to the invention, in which the entire capsule is substantially formed as a molded foam part. In an advantageous development of the noise-reducing capsule, this forms a flow channel for a flow of air emerging from the fan motor unit. In this case, the flow channel is formed so that the air flow is led out through the flow channel from the vacuum cleaner housing.
  • the noise-reducing capsule forms a flow channel for the air flow emerging from the fan motor unit
  • the noise-reducing capsule can furthermore also be used to reduce turbulence in the air flow emerging from the vacuum cleaner housing. The minimization of such turbulences also leads to a significant reduction in noise emissions of a vacuum cleaner.
  • the flow channel is designed such that an air flow guided in the flow channel is deflected at least once, preferably several times by an angle of 90 ° or greater.
  • the deflection of the air flow by an angle of 90 ° or greater can be done in one step, z. B. in a portion of the flow channel, which is formed as a circular arc section. However, it can also take place via several sub-deflections, which individually can each be smaller than 90 °, but in the sum amount to at least 90 °.
  • the noise-reducing capsule further comprises an element acting as a diffuser, which is arranged in the flow channel.
  • an acting as a diffuser element in this context is a flow-conducting means to understand, which deflects an air flow having a main flow direction in a plurality of flow directions.
  • a diffuser promotes the decay of eddies contained in the passing air stream, which are sources of noise emissions.
  • one or more diffusers are arranged in the immediate vicinity of the fan motor unit, in particular of the motor of the fan motor unit, in the flow channel.
  • the noise-reducing capsule according to the invention furthermore comprises a fleece or a filter foam.
  • this fleece or this filter foam is foamed to the molded foam part of the noise-reducing capsule, whereby the assembly of the noise-reducing capsule is simplified.
  • the fleece or the filter foam is inserted as a separate part in the open foaming tool.
  • the fleece or the filter foam consists of PET.
  • the fleece or the filter foam is arranged as a diffuser in the flow channel formed by the noise-reducing capsule.
  • the molded foam part comprises a foamed polyurethane.
  • the noise-reducing capsule can be formed into substantial parts, advantageously also as a whole, as a molded foam part and consist for example of a foamed polyurethane.
  • the capsule comprises at least two preferably mold-foamed capsule halves.
  • their relative position is determined by a spring groove system, which may be advantageously formed integrally with the molded foam parts.
  • the capsule comprises at least two preferably mold-foamed capsule halves, which are connected to one another via a film hinge.
  • the film hinge is integrally formed with the capsule halves, so that the capsule is formed integrally with their at least two capsule halves.
  • the noise-reducing capsule is substantially airtight, so that of the fan motor unit generated air flow can emerge from the capsule essentially only by the flow channel formed by the noise-reducing capsule.
  • the foam of the capsule is preferably closed-celled, but at least mixed-celled.
  • the noise-reducing capsule has an air-impermeable layer.
  • an air-impermeable layer may be formed, for example, as a preferred external foam-backed plastic film.
  • such an air-impermeable layer may also be formed as a layer in the material of the capsule itself, which has a reduced porosity.
  • An air-tight coating of one of the surfaces of the capsule, in particular the outer surface of the fan capsule, has proved to be advantageous.
  • the air-impermeable layer can advantageously be formed by in-mold coating.
  • the surface of the foaming tool is at least partially covered with a lacquer or a film before the reactive mixture is introduced into the foaming mold to form the molded foam part.
  • substantially the entire surface of the fan capsule is designed airtight.
  • only a partial surface of the surface of the fan capsule is designed airtight. In this case, this subarea, which need not be simply connected, but can be, preferably adjoins the suction opening of the fan motor unit.
  • the sound-absorbing effect of the noise-reducing capsule according to the invention can be increased locally by increasing the density of the material of the capsule.
  • the capsule may have areas of increased density in a preferred embodiment. These areas of increased density can be provided for example by the formation of a heavy layer, which covers the capsule at least partially.
  • the molded foam part of the capsule is at least partially formed as a two-component foam part and has a layer of higher density and a layer of lower density in these areas.
  • the entire molded foam part of the capsule can also be designed as a two-component foam part.
  • a higher density layer can be achieved, for example, by the release of a high density filler such as barium sulfate powder.
  • a high density filler such as barium sulfate powder.
  • the mixing ratio of the starting materials used for producing the molded foam member may be locally varied so that the resulting foam has locally different densities.
  • the capsule has at least one region with viscoelastic properties.
  • this at least one region with viscoelastic properties is arranged where the capsule forms a mechanical support of the fan motor unit with respect to a vacuum cleaner housing enclosing the fan motor unit.
  • the capsule forms areas with viscoelastic properties everywhere where the capsule forms a mechanical support of the fan motor unit with respect to the vacuum cleaner housing.
  • the invention further relates to a vacuum cleaner with a vacuum cleaner housing and a blower motor unit arranged in the vacuum cleaner housing.
  • the fan motor unit is for generating an air flow to provide the Suction power of the vacuum cleaner. It includes a blower fan and an electric motor for driving the blower fan.
  • the blower motor unit of the vacuum cleaner is now arranged in a noise-reducing capsule according to the invention, that is in a capsule with the features of claim 1 or one of the above-discussed advantageous embodiments of such a capsule, as they result in particular from the dependent claims back to claim 1.
  • the provided in the vacuum cleaner capsule forms a mechanical support of the fan motor unit relative to the vacuum cleaner housing.
  • the molded foam part of the capsule forms the aforementioned mechanical support.
  • the entire mechanical support of the fan motor unit relative to the vacuum cleaner housing via the capsule in particular via one or more embraced by the capsule molded foam parts.
  • a flow channel for the air flow emerging from the fan motor unit is formed in the vacuum cleaner. This air flow is led out of the housing of the vacuum cleaner via the flow channel.
  • this flow channel is jointly formed by the vacuum cleaner housing and the fan capsule.
  • the flow channel is formed substantially exclusively by the fan capsule.
  • the flow channel is advantageously designed so that an air flow guided in the flow channel does not flow along outer walls of the vacuum cleaner housing.
  • outer walls of the vacuum cleaner housing those walls of the vacuum cleaner housing are understood to have surfaces which are not directed to the interior of the vacuum cleaner housing and as such can serve as emission surfaces for acoustic emissions.
  • the flow channel is jointly formed by the vacuum cleaner housing and the capsule, then here too the flow channel is advantageously designed such that an air flow guided in the flow channel is deflected at least once, preferably several times through an angle of 90 ° or greater.
  • the flow channel is collectively formed by the vacuum cleaner housing and the capsule, it has proven to be advantageous if the vacuum cleaner has acting as a diffuser elements which reach into the flow channel.
  • the elements acting as a diffuser can be assigned to both the vacuum cleaner housing and the capsule or advantageously form a mechanical unit with the vacuum cleaner housing or the capsule. In addition, they can also form a mechanical unit with the fan motor unit.
  • the vacuum cleaner housing of a generic vacuum cleaner has an outflow opening for the suction power providing air flow, which is generated by the fan motor unit.
  • the capsule is now arranged in the vacuum cleaner housing relative to the outflow opening and the fan motor unit such that the cap is covering the outflow opening with respect to the motor.
  • direct sound emissions of the fan motor unit which are directed towards the discharge opening of the vacuum cleaner housing, can be effectively reduced.
  • An even more effective reduction of this direct sound radiation of the blower motor unit through the discharge opening of the vacuum cleaner housing can be achieved in that the capsule has at least one region of increased density, which is arranged in the installed position of the capsule where the capsule covers the outflow opening above the engine. This embodiment therefore represents an advantageous development.
  • a method for producing a noise-reducing capsule according to the invention advantageously comprises the method step of producing the molded foam part of the capsule by introducing a reaction mixture into the cavity of a foaming tool.
  • the entire noise-reducing capsule can essentially be designed as a molded foam part, so that the entire capsule can also be produced in an advantageous method by introducing a reaction mixture into the cavity of a foaming mold.
  • the reaction mixture contains polyol and isocyanate.
  • a molded foam part can be produced, which comprises a mixed or closed-cell polyurethane foam.
  • a predetermined surface portion of the Schumtechnikzeugs is tempered so that the reaction mixture results in a foam layer having an integral, preferably substantially air-tight, at least 0.1 mm thick skin layer, the usually has an increased density.
  • This skin layer is integrally connected to the preferably closed or mixed-cellular molded foam part forming in other regions of the cavity of the foaming tool.
  • Such a skin layer may also be formed by appropriately changing the mixing ratio of polyol and isocyanate during the introduction of the reaction mixture into the foaming tool.
  • the resulting skin layer can on the one hand promote or provide an advantageous airtightness of the molded foam part as already mentioned above. Furthermore, this skin layer can serve to provide a region of increased density of the molded foam part, which may be advantageous to form capsule areas with locally increased acoustic insulation effect.
  • a fleece, a filter foam or a plastic film is introduced into the cavity of the foaming tool, which is subsequently backfoamed.
  • a capsule can form, which comprises a fleece, a filter foam or a plastic film, which are each captively connected to the capsule.
  • a vacuum cleaner according to the invention can advantageously be provided by a method which comprises the following method steps: a) provision of a vacuum cleaner housing, b) providing a fan motor unit adapted to generate an air flow for providing a suction force of the vacuum cleaner,
  • FIG. 1 is a schematic sectional view of a generic vacuum cleaner
  • Fig. 2 a section through a noise-reducing capsule with inserted
  • FIG. 3 shows a section through the housing of a vacuum cleaner according to a first embodiment with a noise-reducing capsule according to FIG. 2
  • FIG. 4 shows a section through the housing of a vacuum cleaner according to a second embodiment with a noise-reducing capsule similar to Figure 2
  • Fig. 5 a schematic representation of a vacuum cleaner according to a third
  • Fig. 6 the vacuum cleaner of Fig. 5 with assembled capsule.
  • the vacuum cleaner 1 has a vacuum cleaner housing 10 in which an engine compartment 20 and a dust bag compartment 30 are formed.
  • the dust bag compartment 30 communicates with the outside world via a suction opening 40, wherein the suction opening 40 shown here schematically forms a connection, for example for a suction hose (not shown).
  • the dust bag space 30 receives a dust bag 32, the opening of which coincides with the suction opening 40.
  • the dust bag space 30 is connected via an air passage 34 with the engine compartment 20 in connection.
  • a blower motor unit 50 arranged in the engine compartment 20 conveys air through the suction opening 40 and the dust bag 32 through the air passage 34 and blows them out of the dust collector housing 10 out of the outflow opening 60.
  • the course of the air flow within the vacuum cleaner housing 10 is indicated by the arrows.
  • the engine compartment 20 is hermetically sealed against the dust bag compartment 30.
  • the basic structure shown in Fig. 1 follow the vast majority of sled vacuum cleaner according to the prior art.
  • FIG. 2 shows a first embodiment of a capsule 70 according to the invention in a schematic sectional view.
  • a blower motor unit 50 which includes a blower 52 driven by an electric motor 54.
  • the blower 52 is arranged directly on the output shaft of the electric motor 54, so that the rotational axes of the blower 52 and motor 54 coincide. len.
  • the blower motor unit 50 is supported on the inside flange surface 76 of the capsule 70 at this.
  • the blower 52 is positively arranged in blower recesses 72, which are formed in the capsule inner surfaces.
  • the fan 52 is sealingly retained in the capsule 70 in the manner illustrated so that air entry into the capsule interior is possible only through the interior of the fan 52.
  • the sucked by the blower 52 and funded in the capsule interior air flow passes partly directly and partially through the interior of the motor 54 through and out of this through the cooling holes 56 in the housing of the motor 54 into the capsule interior.
  • FIG. 3 now shows a section through a capsule 70 according to the invention inserted into a vacuum cleaner housing 10, in which a fan motor unit 50 is arranged, as illustrated with reference to FIG.
  • the capsule 70 comprises a capsule upper half 82 and a capsule lower half 84, which are formed separately from each other. Capsule upper half 82 and capsule sub-half 84 can be inserted into one another via an integrally formed spring / groove system and thus mechanically fixed to one another (see FIG. 5).
  • an outflow filter 62 is arranged in the region of the outflow opening 60, which can be designed, for example, as a nonwoven filter in order to reduce the dust load of the air flow flowing out of the outflow opening 60.
  • the outflow filter 62 may in particular be a so-called pop filter.
  • the air flow emerging from the capsule interior experiences at least one deflection through 90 ° when flowing through the flow channels 86.
  • the two air streams in turn experience a further deflection, which can again be up to 90 °.
  • Capsule upper half 82 and capsule sub-half 84 are formed as foam-molded components made of a polyurethane foam.
  • the foam is not closed or mixed cell formed.
  • Capsule top and bottom halves 82, 84 are made by injecting a reactive mixture comprising the components polyol and isocyanate into a closed foaming mold. By adjusting the local concentration of reaction components or by adjusting the local mold temperature, formation of an airtight skin on the outer surfaces of capsule top and bottom halves 82, 84 can be induced.
  • FIG. 4 shows an improved embodiment of the capsule shown in FIG. 3 in an identical sectional view. The device shown in FIG. 4 On the one hand, the capsule 70 differs from the capsule 70 shown in FIG. 3 in that the capsule upper half 82 comprises a heavy layer 83 lying on the outer surface of the capsule upper half 82.
  • This heavy layer 83 has a higher density than the other material of the capsule top half 82, which can be realized by the addition of a filler of high density, such as barium sulfate. This heavy layer 83 increases the acoustic insulating capacity of the capsule upper half 82 and thus reduces the direct passage of the sound generated by the fan motor unit 50 through the capsule upper half 82 in the direction of the outflow opening 60.
  • the capsule 70 according to FIG. 4 differs from the capsule 70 shown in FIG. 3 in the arrangement of transverse ribs 88 in the region of the flow channels 86, wherein the transverse ribs 88 are formed both on the outer surface of the capsule upper half 82 and on the inner surface of the capsule half 84 are formed and extend transversely to the flow direction, which is indicated by the arrows in Figure 4.
  • the vortices entrained in the airflow exiting the capsule 70 are effectively damped, whereby a further reduction in the acoustic emissions of the vacuum cleaner 1 can be achieved.
  • FIG. 5 schematically shows a three-dimensional representation of a vacuum cleaner 1 according to the invention, in which the engine compartment 20 with inserted and opened capsule 70 and blower motor unit 50 arranged therein can be seen.
  • the capsule sub-half 84 is positively received in the engine compartment 20 of the vacuum cleaner housing 10, which forms an additional internal partition 22 for this purpose.
  • the fan motor unit is received in a press fit.
  • the fan motor unit 50 is secured against twisting in the capsule 70 about the axis of rotation of the motor 54 by a stabilizing member 58, not shown in FIG.
  • the two-fold spring / groove system can be seen, with which the upper half of the capsule 82 and the lower half of the capsule 84 can be combined to form a mechanical unit.
  • the upper half of the capsule 84 forms pins 90 at its front end walls, which in correspondence engaging recesses 92 in the end walls of the capsule half 84 engage.
  • the pins 90 are formed integrally with the capsule upper half 82.
  • the longitudinal side walls of the capsule upper half 82 are extended in the direction of the capsule lower half 84 and form wall extensions 94 on both sides.
  • the upper half of the capsule 82 and the lower half of the capsule 84 are joined together, they engage in grooves 96 which are formed in the inner end faces of the capsule lower half 84.
  • FIG. 6 shows the arrangement from FIG. 5, wherein the upper half of the capsule 82 is joined together with the lower half of the capsule 84 to form a mechanical unit, whereby the capsule 70 is formed.
  • the flow channel 86 formed between capsule upper half 82 and capsule sub-half 84 becomes visible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une capsule insonorisante (70) servant à loger un bloc moteur de soufflerie (50) d'un aspirateur (1). Le bloc moteur de soufflerie (50) est conçu pour produire un flux d'air et délivrer ainsi une force d'aspiration à l'aspirateur (1), et comprend un ventilateur de soufflerie (52) ainsi qu'un moteur électrique (54) entraînant le ventilateur de soufflerie (52). L'invention concerne par ailleurs un aspirateur (1) équipé d'une capsule insonorisante (70).
EP17751010.4A 2016-08-08 2017-07-20 Capsule insonorisante d'un bloc moteur de soufflerie d'un aspirateur, ainsi qu'aspirateur Withdrawn EP3496584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016104364 2016-08-08
PCT/DE2017/100607 WO2018028740A1 (fr) 2016-08-08 2017-07-20 Capsule insonorisante d'un bloc moteur de soufflerie d'un aspirateur, ainsi qu'aspirateur

Publications (1)

Publication Number Publication Date
EP3496584A1 true EP3496584A1 (fr) 2019-06-19

Family

ID=59579369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17751010.4A Withdrawn EP3496584A1 (fr) 2016-08-08 2017-07-20 Capsule insonorisante d'un bloc moteur de soufflerie d'un aspirateur, ainsi qu'aspirateur

Country Status (4)

Country Link
EP (1) EP3496584A1 (fr)
CN (2) CN109715021A (fr)
DE (2) DE202017006928U1 (fr)
WO (1) WO2018028740A1 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE102018126736A1 (de) * 2018-10-26 2020-04-30 Miele & Cie. Kg Gebläsekapselvorrichtung zum Reduzieren einer Geräuschentwicklung für ein Gebläse, Gebläsesystem mit einer Gebläsekapselvorrichtung und Verfahren zum Herstellen eines Gebläsesystems
FR3089403B1 (fr) * 2018-12-07 2020-11-20 Seb Sa Aspirateur domestique équipé d’un élément d’absorption acoustique
DE102019102020A1 (de) 2019-01-28 2020-07-30 Miele & Cie. Kg Staubsauger
EP3937352B1 (fr) * 2020-07-08 2022-08-31 Sick Ag Dispositif de raccordement permettant de raccorder une unité moteur à un boitier et procédé de raccordement de l'unité moteur au boitier à l'aide du dispositif de raccordement
CN113576312B (zh) * 2021-07-07 2022-09-23 北京顺造科技有限公司 一种自主清洁设备及其降噪风道装置

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Publication number Priority date Publication date Assignee Title
DE3402603A1 (de) * 1984-01-26 1985-08-01 Electrostar Schöttle GmbH & Co, 7313 Reichenbach Staubsauger
DE9309229U1 (de) * 1993-06-25 1993-08-26 Omega Elektrogeraete Gmbh Motor- und Bauteilelagerung für Elektrogeräte, insbesondere Staubsauger
SE0202109D0 (sv) * 2002-07-04 2002-07-04 Electrolux Ab Ljuddämpande anordning för dammsugare
JP4028872B2 (ja) * 2004-11-05 2007-12-26 三星光州電子株式会社 モータ組立体の排気装置及びこれを含む掃除機
US7627928B2 (en) * 2005-02-17 2009-12-08 Shop-Vac Corporation Removable internal air diffuser
KR101212291B1 (ko) 2005-12-30 2012-12-12 삼성전자주식회사 진공청소기
DE102006027753A1 (de) * 2006-06-16 2007-12-20 Fakir Hausgeräte GmbH Staubsauger
CN104083124B (zh) * 2014-06-27 2017-06-13 莱克电气股份有限公司 一种具有电机减震结构的吸尘器

Also Published As

Publication number Publication date
DE112017003947A5 (de) 2019-05-16
CN109715021A (zh) 2019-05-03
DE202017006928U1 (de) 2018-11-16
CN208590992U (zh) 2019-03-12
WO2018028740A1 (fr) 2018-02-15

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