EP2205785A1 - Waschmaschinen-direktantrieb - Google Patents
Waschmaschinen-direktantriebInfo
- Publication number
- EP2205785A1 EP2205785A1 EP08803601A EP08803601A EP2205785A1 EP 2205785 A1 EP2205785 A1 EP 2205785A1 EP 08803601 A EP08803601 A EP 08803601A EP 08803601 A EP08803601 A EP 08803601A EP 2205785 A1 EP2205785 A1 EP 2205785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- direct drive
- washing machine
- machine direct
- tub
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Definitions
- Washing machines direct drive
- the invention relates to a washing machine direct drive according to the preamble of claim 1.
- a washing machine direct drive is known for example from EP 1 541 738 A2.
- the washing drum In a washing machine direct drive usually the washing drum is rotatably connected via a shaft connected to a designed as an external rotor rotor of a direct drive motor, while the stator of the motor used for direct drive of the washing drum is screwed to the tub of the washing machine.
- the invention has for its object to provide a particularly efficient producible and mountable washing machine direct drive.
- This object is achieved by a washing machine direct drive with the features of claim 1.
- This washing machine Direct drive comprises a rotor, preferably equipped with permanent magnets, in particular rare earth magnets, designed as an external rotor and a stator interacting therewith.
- the stator For attachment of the stator to a tub, the stator has a rigidly connected to a stator core attachment part, which cooperates with ribs on the tub anti-rotation structure, at least one for contact with the tub, that is, for axial support, provided stop element, and at least one latchable on the tub Includes snap connection element.
- the snap-action connecting member in cooperation with a corresponding contour on the tub, is adapted to build up a holding force in the opposite axial direction.
- the term "axial" refers to the axis of rotation of the washing drum and the direct drive motor
- the Verfsichtungs Geneva preferably has no fixing effect in the axial direction. Rather, the three functions axial stop in a first direction, axial fixation in the opposite Direction and rotation preferably by three different functional structures, namely the stop element, the snap-connection element and the anti-rotation structure perceived.
- the anti-rotation structure is preferably realized in the form of each engaging between two ribs of the tub anti-rotation segments.
- the anti-rotation structure has the shape of a nearly closed ring, which is broken only by slots, in each of which engages a rib of the typically made of plastic tub.
- the rib of the tub is in this case sandwiched between two webs of the anti-rotation structure, wherein each web is attributable to one of two adjacent anti-rotation segments.
- Each anti-rotation segment comprises two webs resting against different ribs of the tub, which webs are connected to one another by a preferably multi-axially curved segment piece.
- the entirety of the segment pieces describes an annular cavity, wel is rather broken through by the webs of the anti-rotation structure, so that individual, on the side facing away from the tub side open Ringseg- dream dreams are formed.
- the fastening part is shaped such that it can be fastened to the tub only in a single defined angular position.
- the tub also has a contour, which ensures that the stator can be mounted only in a certain way. This can be realized, for example, in that the angles between different adjacent ribs of the tub are unequal.
- the anti-rotation structure is preferably formed as the stop member and the snap connection element preferably as an integral part of the fastening part of the stator.
- stop elements for example, each formed on a segment piece investment pins are suitable.
- the snap connection element can be realized, for example, as a ring snap connection or in the form of individual snap lugs or hooks.
- Plastic for example polypropylene, is particularly suitable for producing the fastening part, including the three different functional structures. In particular, fiber-reinforced plastic is considered for the production of the fastening part.
- the fastening part preferably also forms an electrical insulation of the stator.
- the insulation in one piece, wherein the two-component injection molding method is suitable for encapsulating a stator core with insulating material.
- the insulation may be constructed of two half-shells between which the stator core is located.
- the fastening part is in this case an integral part of one of the half-shells.
- FIG. 1 shows a sectional illustration of a section of a direct drive motor mounted on a tub of a washing machine
- FIGS. 2 to 5 show, in different views, a stator component of the direct drive motor according to FIG. 1.
- a stator 2 of a direct drive motor is visible as a component of a washing machine direct drive 1, which is attached to a tub 3 a washing machine.
- a washing machine direct drive 1 With regard to the function of the washing machine direct drive 1, reference is made to DE patent application 10 2007 030 508.9-32.
- An arranged in an opening 4 of the tub 3 rolling bearing 5 is used for storage of the washing drum, not shown, and also connected thereto, also not shown external rotor rotor of the washing machine direct drive 1.
- external rotor rotor of the washing machine direct drive 1 For clarity, are the bestromba- reindeer windings of the stator 2 of the washing machine direct drive 1 not shown.
- the axis of rotation of the washing machine direct drive 1 is denoted by R.
- Fig. 1 two possible embodiments of the insulation 7 are visible: In the lower half of the illustration, the stator core 6 is overmolded with the insulation 7. The insulation 7 including the fastening part 8 is thus formed in one piece. This variant also corresponds to the design illustrated in FIGS. 2 to 5, FIG. 4 showing a detail Z from FIG. 3. According to an alternative, indicated in the upper half of Fig. 1 embodiment, the insulation 7 is composed of two half-shells 20, 21, wherein a parting plane is designated T. The fastening part 8 is in this case integrally connected to the half-shell 20.
- the fastening part 8 is made of fiber-reinforced plastic, for example PP-GF 40, and forms an anti-rotation structure 10 which comprises individual anti-rotation elements 11 and slots 12 formed between them. In each slot 12 engages one of a plurality of radially arranged ribs 13 of the tub 3.
- PP-GF 40 fiber-reinforced plastic
- Fig. 2 is an optional feature on one of the anti-rotation segments 11 molded projection 22, generally referred to as a positioning aid, indicated by dashed lines, wherein the tub 3 has a corresponding mating contour, in which the projection 22 engages.
- the stator 2 is thus mounted on the tub 3 only in a certain angular position. As an equivalent measure comes, for example, an uneven angular pitch between the slots 12 and the ribs 13 into consideration.
- an abutment pin 17, also referred to as a stop element, is integrally formed on each segment piece 16. In this way, the axial positioning of the stator component 2 relative to the tub 3 is exactly fixed. sets.
- a snap connection element 18 is formed on the fastening part 8, which cooperates with an annular latching contour 19 of the tub 3 radially surrounded by the rolling bearing 5.
- the snap connection element 18, like the stop elements 17, has no guiding function in the circumferential direction, that is to say no anti-rotation function.
- the torsion-sealing structure 10 has no positioning function in the axial direction.
- the stator 2 is thus extremely simple and at the same time precise and reliable on the tub 3 fastened. Due to the complete one-piece production of the fastening part 8 made of plastic, the stator 2 is also extremely efficient to produce.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Motor Or Generator Frames (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007048219A DE102007048219A1 (de) | 2007-10-08 | 2007-10-08 | Waschmaschinen-Direktantrieb |
| PCT/EP2008/061630 WO2009047057A1 (de) | 2007-10-08 | 2008-09-03 | Waschmaschinen-direktantrieb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2205785A1 true EP2205785A1 (de) | 2010-07-14 |
| EP2205785B1 EP2205785B1 (de) | 2011-11-09 |
Family
ID=40278945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08803601A Not-in-force EP2205785B1 (de) | 2007-10-08 | 2008-09-03 | Waschmaschinen-direktantrieb |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2205785B1 (de) |
| AT (1) | ATE532895T1 (de) |
| DE (1) | DE102007048219A1 (de) |
| IT (1) | IT1391580B1 (de) |
| WO (1) | WO2009047057A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20090269A1 (it) * | 2009-09-17 | 2011-03-18 | Giuseppe Pengo | Azionamento di lavatrice mediante motore elettrico con il rotore fissato al cesto all'interno della vasca. |
| KR20220109907A (ko) | 2021-01-29 | 2022-08-05 | 엘지전자 주식회사 | 의류처리장치 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1279098B1 (it) * | 1995-01-10 | 1997-12-04 | Bitron Spa | Perfezionamenti a motori di tipo brushless, in particolare per il pilotaggio diretto del cestello delle lavatrici |
| US6756713B2 (en) * | 2002-02-07 | 2004-06-29 | Ametek, Inc. | Insulated stator core with attachment features |
| EP1541738B1 (de) | 2003-12-10 | 2013-06-12 | LG Electronics, Inc. | Aussenläufermotor für Trommelwaschmaschine und Herstellungsverfahren dafür |
| DE102007030508B4 (de) | 2007-06-30 | 2014-10-16 | Schaeffler Technologies Gmbh & Co. Kg | Waschmaschinen-Direktantrieb |
-
2007
- 2007-10-08 DE DE102007048219A patent/DE102007048219A1/de not_active Withdrawn
-
2008
- 2008-09-03 AT AT08803601T patent/ATE532895T1/de active
- 2008-09-03 WO PCT/EP2008/061630 patent/WO2009047057A1/de not_active Ceased
- 2008-09-03 EP EP08803601A patent/EP2205785B1/de not_active Not-in-force
- 2008-10-02 IT ITMI2008A001756A patent/IT1391580B1/it active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009047057A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1391580B1 (it) | 2012-01-11 |
| EP2205785B1 (de) | 2011-11-09 |
| DE102007048219A1 (de) | 2009-04-09 |
| ATE532895T1 (de) | 2011-11-15 |
| ITMI20081756A1 (it) | 2009-04-09 |
| WO2009047057A1 (de) | 2009-04-16 |
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