EP0657575B1 - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
EP0657575B1
EP0657575B1 EP94118167A EP94118167A EP0657575B1 EP 0657575 B1 EP0657575 B1 EP 0657575B1 EP 94118167 A EP94118167 A EP 94118167A EP 94118167 A EP94118167 A EP 94118167A EP 0657575 B1 EP0657575 B1 EP 0657575B1
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EP
European Patent Office
Prior art keywords
washing machine
drive motor
motor
automatic washing
machine according
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.)
Expired - Lifetime
Application number
EP94118167A
Other languages
German (de)
French (fr)
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EP0657575A1 (en
Inventor
Manfred Dipl.-Ing. Altmann
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.)
FHP Motors GmbH
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FHP Motors GmbH
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Publication date
Application filed by FHP Motors GmbH filed Critical FHP Motors GmbH
Publication of EP0657575A1 publication Critical patent/EP0657575A1/en
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Publication of EP0657575B1 publication Critical patent/EP0657575B1/en
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Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/206—Mounting of motor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors

Description

Die Erfindung betrifft einen Waschautomaten mit einem Gehäuse der im Oberbegriff des Patentanspruchs 1 angegebenen Art.The invention relates to a washing machine with a housing specified in the preamble of claim 1.

Moderne Waschautomaten der Oberklasse erfordern sowohl im Waschgang als auch im Schleudergang unterschiedliche Drehzahlen der Waschtrommel. Hierbei sollen die Schleuderdrehzahlen Werte von 1300 bis 2000 1/min haben, während für den Geräuschpegel höchstens für das Waschen LWA 47dB und für das Schleudern LWA 49dB angestrebt werden.Modern luxury washing machines require both in the wash cycle as well as different speeds in the spin cycle Washing drum. The spin speeds should be values of 1300 to 2000 1 / min, while for the noise level at most for washing LWA 47dB and for spinning LWA 49dB be aimed for.

Bisherige Waschautomaten arbeiten mit einem DC-Motor mit PWM-Chopper und riemengetriebener Trommel, wobei die höchsten Schleuderdrehzahlen bei 1400 1/min liegen. Auch sind mit diesem bekannten Automaten die oben genannten angestrebten Geräuschpegelwerte nicht zu erreichen.Previous washing machines work with a DC motor with a PWM chopper and belt-driven drum, with the highest spin speeds at 1400 rpm. Are also known with this Automat the desired noise level values mentioned above unavailable.

Um die gewünschten Werte bezüglich der Schleuderdrehzahlen und des niedrigen Geräuschpegels zu erreichen, ist ein U-Motor im DC-Betrieb, insbesondere aus Drehzahlgründen nicht einzusetzen, da der U-Motor von seiner Motordrehzahl her nicht über 1300 1/min zu betreiben ist. Weiterhin sind die in Frage kommenden Gleichstrommotoren mit einem nachteilig hohen Bürstenverschleiß, eine starke Geräuschentwicklung in den hohen Drehzahlen sowie den in der Funkentstörung auftretenden Schwierigkeiten behaftet. To the desired values regarding the spin speeds and to achieve the low noise level is a U-motor in the DC operation, especially not to be used for reasons of speed, since the U-motor does not exceed 1300 rpm from its engine speed is to be operated. Furthermore, the DC motors in question with disadvantageously high brush wear, one strong noise in the high speeds as well as in problems with radio interference.

Druckschrift FR-A1 345 648 beschreibt einen Waschvollautomat mit einem an der Außenseite der Bottichrückwand gelagerten Antriebsmotor, der die Waschtrommel direkt antreibt und der von einer Haube umgeben ist. Die Haube erfüllt hierbei eine Schutzfunktion.Document FR-A1 345 648 describes a fully automatic washing machine with one on the outside of the tub back wall Drive motor that drives the washing drum directly and that is surrounded by a hood. The hood fulfills one Protective function.

Aus Druckschrift GB-A-2 183 932 ist ein speziell ausgebildeter bürstenloser Außenläufermotor für einen Waschautomaten bekannt.From GB-A-2 183 932 is a special trained brushless external rotor motor for one Washing machines known.

Der Erfindung liegt die Aufgabe zugrunde, einen Waschautomaten, insbesondere für die Oberklasse zu schaffen, mit dem sich alle gewünschten Drehzahlen von 25 bis 2000 1/min für den Schleudergang und für die unterschiedlichen Waschgänge ohne ungünstige Folgen erzeugen lassen. Weiterhin soll eine weitgehend gleichmäßig zu haltende Wasch- und Schleuderwirkung bei möglichst konstanten Drehzahlen und geringem Geräuschpegel erzielt werden. Diese Aufgabe wird durch die im Patentanspruch 1 gekennzeichneten Merkmale gelöst.The invention has for its object a To create washing machines, especially for the luxury class, with which all desired speeds from 25 to 2000 1 / min for the spin cycle and for the different Have washing cycles produced without any unfavorable consequences. Farther is said to be a largely uniform washing and Spin effect with constant as possible Speeds and low noise level can be achieved. This object is characterized by those in claim 1 Features resolved.

Da die Waschtrommel mit einem hochpoligen Motor direkt angetrieben wird, kann der Forderung der Drehzahlbegrenzung, bei der die maximale Motordrehzahl mit der gewünschten hohen Schleuderdrehzahl identisch ist, entsprochen werden. Der angestrebte niedrige Geräuschpegel wird dadurch erreicht, daß der Antriebsmotor von einer Dämmhaube eingekapselt wird. Zusätzlich kann dann auch noch die Rückwand des Bottichs mit einer Geräuschdämmung versehen werden. Da der Antriebsmotor keine Bürsten aufweist und in vorteilhafter Weise als Synchronmotor mit einem Umrichter ausgebildet ist, kann die Kapselung des Motors aus thermischen Gründen ohne Bedenken vorgenommen werden. Dieses wird auch noch dadurch begünstigt, da die Elektronik nicht am Motor angeordnet ist.Because the washing drum is driven directly by a multi-pole motor is, the requirement of the speed limit at which the maximum engine speed with the desired high spin speed is identical, be met. The targeted low Noise level is achieved in that the drive motor from is encapsulated in an insulation hood. In addition, then also soundproof the back wall of the tub become. Since the drive motor has no brushes and is more advantageous Formed as a synchronous motor with a converter is encapsulating the motor for thermal reasons be done without hesitation. This also becomes favored, since the electronics are not arranged on the motor.

Weitere vorteilhafte Ausgestaltunen des Erfindungsgegenstandes sind den weiteren Unteransprüchen zu entnehmen.Further advantageous configurations of the subject matter of the invention can be found in the further subclaims.

Die Erfindung wird anhand des in der Figur dargestellten Ausführungsbeispiels näher beschrieben.The invention is based on the embodiment shown in the figure described in more detail.

Ein Waschautomat 1 besitzt ein Gehäuse 3, in dem eine mechanisch schwingende Einheit 5 angeordnet ist, die aus einer waagerecht liegenden Wäschetrommel 7, einem diese umgebenden Bottich 9 und einem die Waschtrommel 7 direkt antreibenden Antriebsmotor 11 besteht. Die anderen zur Steuerung des Waschautomaten 1 notwendigen Teile sind nicht näher dargestellt.A washing machine 1 has a housing 3 in which a mechanical vibrating unit 5 is arranged, which consists of a horizontal lying laundry drum 7, a tub 9 surrounding it and a drive motor 11 directly driving the washing drum 7 consists. The others necessary to control the washing machine 1 Parts are not shown in detail.

Der Antriebsmotor 11 ist als bürstenloser Motor an der Außenseite 22 der Bottichrückwand 15 angeordnet und von einer Dämmhaube 13 umgeben, durch welche die Motorgeräusche wirkungsvoll abgeschirmt werden. Hierbei ist die Dämmhaube 13 mit der Rückwand 15 des Bottichs 9 fest verbunden. Da die Steuerelektronik 16 nicht an dem Antriebsmotor 11, sondern an einer von diesem entfernten Stelle in dem Gehäuse 3, z. B. im Bereich der Vorderwand 18 angeordnet ist, kann die Kapselung des Antriebsmotors 11 ohne Bedenken vorgenommen werden, zumal der Antriebsmotor 11 auch keine Bürsten aufweist.The drive motor 11 is a brushless motor on the outside 22 of the tub rear wall 15 and arranged by an insulation hood 13 surrounded by which the engine noise effectively shielded become. Here, the insulation hood 13 with the rear wall 15 of the Vats 9 firmly connected. Since the control electronics 16 are not on the drive motor 11, but at a distance from it Place in the housing 3, for. B. arranged in the region of the front wall 18 is the encapsulation of the drive motor 11 without hesitation be made, especially since the drive motor 11 also none Has brushes.

Das Erreichen des gewünschten Geräuschpegels kann auch dadurch unterstützt werden, daß die Innenseite 17 der Bottichrückwand noch mit einer Dämmschicht 19 versehen wird. Der Antriebsmotor 11 ist ein Außenläufermotor, dessen als Außenläufer 23 ausgebildeter permanentmagnetischer Rotor die Antriebswelle 24 der Wäschetrommel 7 direkt antreibt. Die Antriebswelle 24 ist hierbei in einer aus zwei Wälzlagern 26, 27 bestehenden Lagerung in einer nach außen vorstehenden Nabe 28 an der Bottichrückwand 15 einseitig drehbar gelagert. Der Stator 29 mit dem Statorblechpaket 30 ist hierbei ringförmig zu der Nabe 28 angeordnet.This can also help achieve the desired noise level be supported that the inside 17 of the tub rear wall is still provided with an insulation layer 19. The drive motor 11 is an external rotor motor, which is designed as an external rotor 23 permanent magnetic rotor drives the laundry drum 24 7 drives directly. The drive shaft 24 is in one consisting of two roller bearings 26, 27 in one bearing externally projecting hub 28 on one side of the tub rear wall 15 rotatably mounted. The stator 29 with the stator laminated core 30 is here arranged in a ring to the hub 28.

Durch die hochpolige Ausbildung des Antriebsmotors 11 bei einer Polzahl > 10 kann der Forderung der Drehzahlbegrenzung, bei der die maximale Motordrehzahl mit der Schleuderdrehzahl identisch ist, wirkungsvoll entsprochen werden. Der Antriebsmotor 11 kann entweder ein Synchronmotor mit einem Umrichter oder auch ein Reluktanzmotor sein. Die den Antriebsmotor 11 umgebende Dämmhaube 13 besteht aus einem einseitig durch einen Boden 20 geschlossenen Hohlzylinder 21, der den Außenläufer 23 eng umgibt und dessen öffnungsrand 25 mit der Bottichrückwand 15 fest verbunden ist.Due to the multi-pole design of the drive motor 11 at one Number of poles> 10 can meet the requirement of the speed limitation the maximum engine speed is identical to the spin speed is to be met effectively. The drive motor 11 can either a synchronous motor with a converter or a Reluctance motor. The insulation hood surrounding the drive motor 11 13 consists of a closed on one side by a bottom 20 Hollow cylinder 21 which closely surrounds the outer rotor 23 and its opening edge 25 is firmly connected to the tub rear wall 15.

Der erfindungsgemäße Waschautomat 1 kann mit Motorbetriebsdrehzahlen von 25 bis 2000 1/min betrieben werden, wobei durch die Geräuschkapselung des Antriebsmotors 11 auch der gewünschte Geräuschpegel einfach und wirkungsvoll erreicht wird.The washing machine 1 according to the invention can operate at engine operating speeds operated from 25 to 2000 1 / min, whereby by the Noise encapsulation of the drive motor 11 also the desired noise level is achieved simply and effectively.

Claims (6)

  1. Automatic washing machine with a housing (3) in which is arranged a mechanically oscillating unit which includes a horizontally located wash drum (7), a tub (9) surrounding the latter and a drive motor (11) which drives the wash drum directly and which is mounted on the outer side (22) of the tub rear wall (15), characterised in that the drive motor is a brushless external rotor motor whose permanently magnetic rotor (23) constructed as an external rotor directly drives the drive shaft (24) of the wash drum (7), and
    an insulating hood (13) which is attached to the tub rear wall (15) surrounds the drive motor (11).
  2. Automatic washing machine according to claim 1, characterised in that the tub rear wall (15) is provided with an insulating layer (19) on its inner side (17).
  3. Automatic washing machine according to claim 1 or 2, characterised in that the drive motor (11) is high-poled and has a pole number > 10.
  4. Automatic washing machine according to claim 3, characterised in that the drive motor (11) is a synchronous motor with a frequency converter.
  5. Automatic washing machine according to claim 3, characterised in that the drive motor (11) is a reluctance motor.
  6. Automatic washing machine according to any of the preceding claims, characterised in that the insulating hood (13) consists of a hollow cylinder (21) which is closed on one side by a bottom (20) and which closely surrounds the external rotor (23) and whose opening edge (25) is rigidly connected to the tub rear wall (15).
EP94118167A 1993-12-08 1994-11-18 Washing machine Expired - Lifetime EP0657575B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341832 1993-12-08
DE4341832A DE4341832C2 (en) 1993-12-08 1993-12-08 Washing machine

Publications (2)

Publication Number Publication Date
EP0657575A1 EP0657575A1 (en) 1995-06-14
EP0657575B1 true EP0657575B1 (en) 1999-03-24

Family

ID=6504478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118167A Expired - Lifetime EP0657575B1 (en) 1993-12-08 1994-11-18 Washing machine

Country Status (4)

Country Link
EP (1) EP0657575B1 (en)
DE (1) DE4341832C2 (en)
SI (1) SI9400429A (en)
SK (1) SK151094A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8196440B2 (en) 2002-09-24 2012-06-12 Kabushiki Kaisha Toshiba Drum washing machine
US8677788B2 (en) 1999-10-18 2014-03-25 Lg Electronics Inc. Method of forming a drum type washing machine having a driving unit

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19547456A1 (en) 1995-12-19 1997-06-26 Bosch Siemens Hausgeraete Drive device for a washing machine that can be loaded from the front
DE19547745A1 (en) 1995-12-20 1997-06-26 Bosch Siemens Hausgeraete Drive device for a washing machine that can be loaded from the front
WO1998036123A2 (en) * 1997-02-17 1998-08-20 Miele & Cie. Gmbh & Co. Laundry treating equipment with a driving motor mounted on the drum shaft
DE19724475B4 (en) * 1997-06-10 2010-08-05 BSH Bosch und Siemens Hausgeräte GmbH Drive device for a front-loadable washing machine
DE19724930A1 (en) * 1997-06-12 1998-12-17 Bosch Siemens Hausgeraete Drive device for a washing machine
JPH1128298A (en) * 1997-07-11 1999-02-02 Toshiba Corp Drum type washing machine
ATE251247T1 (en) † 1998-08-17 2003-10-15 Miele & Cie LAUNDRY TREATMENT DEVICE
TW472094B (en) * 1999-05-19 2002-01-11 Toshiba Corp Rolling drum type washing machine
AU753411B2 (en) 1999-10-19 2002-10-17 Lg Electronics Inc. Structure of driving unit in drum type washing machine
DE10355452A1 (en) * 2003-11-27 2005-06-23 BSH Bosch und Siemens Hausgeräte GmbH Washing machine with a container for laundry
ITTO20060105U1 (en) 2006-07-13 2008-01-14 Iar Siltal Spa MACHINE FOR WASHING AND / OR DRYING FOR HOME USE
US8317935B2 (en) 2006-12-01 2012-11-27 Electrolux Home Products, Inc. Dishwasher apparatus including sound absorbing device
CN110541281A (en) * 2019-10-08 2019-12-06 珠海格力电器股份有限公司 Noise reduction structure and washing machine
CN110699925A (en) * 2019-10-31 2020-01-17 珠海格力电器股份有限公司 Noise reduction device, drum driving assembly and washing machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL291769A (en) * 1962-04-19
FR1340648A (en) * 1962-12-05 1963-10-18 Intertecnica S R L Improvements to automatic washing machines of the household type
DE1938115U (en) * 1966-02-19 1966-05-12 Hermann Zanker K G Maschinen U WASHING MACHINE.
FR1555088A (en) * 1967-09-29 1969-01-24
US4712035A (en) * 1985-11-12 1987-12-08 General Electric Company Salient pole core and salient pole electronically commutated motor
US5056341A (en) * 1989-06-08 1991-10-15 Sanyo Electric Co., Ltd. Washing machine
DE3927426B4 (en) * 1989-08-19 2006-02-23 Ebm-Papst Mulfingen Gmbh & Co. Kg Drive unit for a laundry treatment machine
IT229031Y1 (en) * 1992-03-16 1998-06-24 Zanussi Elettrodomestici WASHING MACHINE WITH PERFECTED STRUCTURES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8677788B2 (en) 1999-10-18 2014-03-25 Lg Electronics Inc. Method of forming a drum type washing machine having a driving unit
US8196440B2 (en) 2002-09-24 2012-06-12 Kabushiki Kaisha Toshiba Drum washing machine

Also Published As

Publication number Publication date
EP0657575A1 (en) 1995-06-14
SI9400429A (en) 1995-06-30
DE4341832C2 (en) 2001-11-08
SK151094A3 (en) 1995-07-11
DE4341832A1 (en) 1995-06-14

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