WO2005064069A2 - Wäschertrockner - Google Patents
Wäschertrockner Download PDFInfo
- Publication number
- WO2005064069A2 WO2005064069A2 PCT/EP2004/053689 EP2004053689W WO2005064069A2 WO 2005064069 A2 WO2005064069 A2 WO 2005064069A2 EP 2004053689 W EP2004053689 W EP 2004053689W WO 2005064069 A2 WO2005064069 A2 WO 2005064069A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- air
- cooling
- drum
- line
- Prior art date
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
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
- D06F58/04—Details
- D06F58/06—Mountings for the rotating drums
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2340/00—Apparatus for treating textiles
Definitions
- the present invention relates to a tumble dryer with a rotatable
- Drum for holding laundry and a bearing for rotatably storing the drum.
- tumble dryers in which a drum for receiving
- Laundry is arranged horizontally and are rotatably mounted on rotary bearings.
- the rotary bearings are particularly exposed to strong thermal loads, if they are arranged adjacent to channels carrying hot process air, which have a negative effect on the reliability and the service life of the bearings.
- the object of the present invention is to provide a clothes dryer with a drum which is rotatably mounted by means of a bearing and which functions reliably.
- a tumble dryer has a housing in which a drum for a bearing
- Laundry is rotatably mounted.
- a cooling device is provided for cooling the bearing. This makes it possible to reduce the maximum thermal expansion of the components of the bearing of the drum and thus to reduce the mechanical load.
- the lubrication provided for the bearing is less stressed by the cooling of the bearing when the bearing is operated at lower temperatures. It also reduces the risk of the lubricant in the bearing becoming thin and leaking at low temperatures. This increases the lifespan and reliability of the bearing and thus the tumble dryer.
- the cooling device includes means for improving the radiation and / or convection of heat from the camp or adjacent to the camp.
- cooling surfaces can be provided which are thermally conductively connected to the bearing. Cooling surfaces of this type can be achieved by designing the bearing bracket in a correspondingly large area or by providing cooling fins.
- the cooling device has a device for
- a blower for conveying process air through the drum and / or for conveying cooling air is provided for a condenser, the blower serving as a device for guiding cooling air to the bearing.
- a process air line is provided, with a
- Section of the process air line and / or the drum is acted upon by the conveying action of the fan with a vacuum and form a vacuum space. Furthermore, a cooling line is provided between the vacuum chamber and the bearing, so that air in the form of ambient air is drawn in adjacent to the bearing and is supplied to the process air as faulty air via the cooling line.
- the bearing has a bearing bracket which is fastened to the housing and a process air duct has an air distribution hood adjacent to the bearing, which covers process air inlet holes in the drum, a cooling air duct in the form of an annular gap being formed between the air distribution hood and the bearing bracket , so that a cooling air flow in the form of ambient air can flow over the annular gap into the process air duct. Due to the annular gap, the bearing is flushed with cooling air on all sides and thus cooled well.
- a process air line is provided, with a
- Section of the process air line and / or the drum is pressurized by the conveying action of the blower and form an overpressure space. Furthermore, a cooling line is provided between the overpressure chamber and the bearing, so that part of the air conveyed is fed to the bearing in order to cool the bearing.
- the process air guide is provided as a circuit with a condenser which is cooled by a cooling air flow. Part of the cooling air flow is branched off and fed to the bearing via a cooling air line in order to cool the bearing.
- the cooling line is dimensioned such that the amount of cooling air can be predetermined.
- Figure 1 is a sectional view of a clothes dryer with a bearing for the
- Figure 2 is a detailed view of the warehouse according to the clothes dryer of Figure 1;
- Figure 3 is a sectional view of a clothes dryer with a bearing for the
- Figure 4 is a detailed view of the warehouse according to the clothes dryer of Figure 3;
- Figure 5 is a sectional view of a clothes dryer with a bearing for the
- a first embodiment of a clothes dryer is shown in the form of an exhaust air dryer.
- the tumble dryer has a housing 1, a drum 2 mounted in the housing 1, a front bearing plate 3, a loading door 4 arranged in the front bearing plate 3 and a lint filter 5 housed in the lower section of the front bearing plate 3.
- the drum 2 is in the front section via front bearing plate 3 arranged rollers 6 and in the rear section via a central, arranged on the rear wall 8 of the drum 2 bearing 9, which in turn is attached to the rear wall 11 of the housing 1 via a bracket 10.
- the drum 2 is rotated about the horizontal axis 14 by a motor 12 and a belt 13.
- the clothes dryer has a process air line 15, which in the present exemplary embodiment has an inflow opening 16, an inflow duct 17, an adjoining air distribution hood 18, which covers process air inlet holes 19 arranged on the rear wall 8 of the drum 2, a process air outlet grille 20, the lint filter 5 and one Outflow channel 21, comprising a fan 22.
- a heater 23 is also arranged in the inflow duct 17.
- the process air flows in the direction of arrow 24 from the surroundings into the inlet opening 16 via the inflow duct 17, the heater 23, the air distribution hood 18, the drum 2, the process air outlet grille 20, the lint filter 5, the outflow duct 21 and the blower 22 back into the surroundings.
- the air distribution hood 18 is sealed off from the rear wall 8 of the drum 2 by a rear seal 25.
- a vacuum space is formed upstream of the blower 22, in particular in the drum 2 and the air distribution hood 18.
- the bearing 9 has a bolt 26 which is attached to the rear wall 8 of the drum 2, and a spherical bearing material 27, which is preferably made of oil-soaked sintered material.
- the bearing material 27 has a bore 28 in which the bolt 26 can rotate.
- the bearing 9 has two seals 29.
- the bracket 10 has an outer half-shell 30 and an inner half-shell 31 between which the spherical bearing material 27 is held. Between the outer half-shell 30 and the inner half-shell 31, a conical spring element 32 is arranged, which inhibits the bearing material 27 against rotation.
- the spherical bearing material 27 can perform pivoting movements transversely to the horizontal axis 14 in order to compensate for an angular offset of the drum 2.
- the central section of the air distribution hood 18 is fastened parallel to the bracket 10, forming an annular gap 33.
- the annular gap 33 is formed by spacer cams 34 which are formed on the air distribution hood 18.
- the outer half-shell 30 and the inner half-shell 31 are each made of one
- FIGS. 3 and 4 a second exemplary embodiment of the tumble dryer is shown in FIG.
- the process air line 15 is designed as a closed circuit, into which a condenser 35 is additionally connected, which is usually designed as a crossflow or counterflow condenser and by a condenser gate cooling air flow 36 is cooled.
- the condenser cooling air flow 36 is generated by an additional blower 37, which can sit on the same drive shaft as the blower 22, in a condenser cooling air line 38.
- a cooling air line 41 is branched off from the pressure-side section of the condenser cooling air line 38 and opens into a space 39 between the rear wall 11 of the housing 1 and the console 10. As is shown in more detail in FIG. 4, the cooling air flow flows into the space 39, through openings 40 formed in the bracket, into the annular gap 33 between the bracket 10 and the air distribution hood 18. This also achieves positive forced cooling of the bearing 9.
- FIG. 4 the direction of the cooling air flow according to FIG. 4 is reversed, and cooling air is extracted via the cooling air line 41 from the space 39 which flows in via the annular gap 33.
- the suction on the cooling air line 41 can take place either via the suction side of the condenser cooling air line 38 (FIG. 3) or via the suction side of the process air line 15 upstream of the heater 23 according to FIG. 1.
- the blower 22 can be arranged upstream of the drum 2, so that there is an overpressure in the process air line in front of the drum 2 and also in the drum 2. Part of this air upstream of the drum 2 and also upstream of the heater 23 can be fed to the bearing 9 via a branch line in order to cool the bearing 9.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502004006962T DE502004006962D1 (de) | 2003-12-23 | 2004-12-23 | Wäschetrockner |
US10/584,162 US7644514B2 (en) | 2003-12-23 | 2004-12-23 | Clothes dryer |
EP04816352A EP1699970B1 (de) | 2003-12-23 | 2004-12-23 | Wäschetrockner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10360898A DE10360898A1 (de) | 2003-12-23 | 2003-12-23 | Wäschetrockner |
DE10360898.2 | 2003-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005064069A2 true WO2005064069A2 (de) | 2005-07-14 |
WO2005064069A3 WO2005064069A3 (de) | 2005-12-15 |
Family
ID=34683831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/053689 WO2005064069A2 (de) | 2003-12-23 | 2004-12-23 | Wäschertrockner |
Country Status (7)
Country | Link |
---|---|
US (1) | US7644514B2 (de) |
EP (1) | EP1699970B1 (de) |
CN (1) | CN100482881C (de) |
AT (1) | ATE393257T1 (de) |
DE (2) | DE10360898A1 (de) |
ES (1) | ES2305903T3 (de) |
WO (1) | WO2005064069A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009132969A1 (en) * | 2008-05-02 | 2009-11-05 | Arcelik Anonim Sirketi | A dryer |
EP2735639A3 (de) * | 2012-11-21 | 2014-09-03 | LG Electronics, Inc. | Trockner mit Wärmepumpe |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10360898A1 (de) * | 2003-12-23 | 2005-07-21 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschetrockner |
WO2006052081A1 (en) * | 2004-11-10 | 2006-05-18 | Lg Electronics Inc. | Dryer |
DE102004055942A1 (de) * | 2004-11-19 | 2006-05-24 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschetrockner |
DE102005023446A1 (de) * | 2005-05-20 | 2006-11-23 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltgerät zur Pflege von Wäschestücken, insbesondere Wäschetrockner |
DE102005013053A1 (de) * | 2005-05-23 | 2006-11-30 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensations-Wäschetrockner |
DE102006023951B4 (de) * | 2005-05-23 | 2012-02-09 | Lg Electronics Inc. | Trockner und Trommelhaltervorrichtung dafür |
DE102007013935A1 (de) | 2007-03-23 | 2008-09-25 | Schaeffler Kg | Wäschetrockner mit horizontal drehbar gelagerter Wäschetrommel |
US20090000139A1 (en) * | 2007-06-29 | 2009-01-01 | Hodges Timothy M | Clothes dryer air intake system |
KR101308510B1 (ko) * | 2007-11-05 | 2013-09-12 | 동부대우전자 주식회사 | 히터 내장형 흡기관을 구비하는 건조기 |
KR101256145B1 (ko) * | 2007-11-05 | 2013-04-23 | 동부대우전자 주식회사 | 히터 내장형 흡기관을 구비하는 건조기 |
US20110283557A1 (en) * | 2009-07-13 | 2011-11-24 | Pellerin Milnor Corporation | Modulated air flow clothes dryer and method |
JP5599280B2 (ja) * | 2010-10-08 | 2014-10-01 | シャープ株式会社 | 洗濯乾燥機 |
DE102011086410A1 (de) * | 2011-11-15 | 2013-05-16 | BSH Bosch und Siemens Hausgeräte GmbH | Laugenbehälteranordnung für eine frontbeschickbare Haushaltsmaschine |
US9359709B2 (en) * | 2013-03-06 | 2016-06-07 | General Electric Company | Dryer appliance with features for limiting air leakages |
US10400385B2 (en) | 2014-04-05 | 2019-09-03 | Michael E. Brown | Apparatus and method for drying articles of clothing |
KR20180085201A (ko) * | 2017-01-18 | 2018-07-26 | 삼성전자주식회사 | 건조기 및 상기 건조기의 제어 방법 |
CN110468565B (zh) * | 2018-05-09 | 2022-07-12 | 青岛胶州海尔洗涤电器有限公司 | 内筒后端固定结构及干衣机 |
KR102640859B1 (ko) | 2018-11-09 | 2024-02-27 | 삼성전자주식회사 | 베어링 조립체 및 이를 갖춘 의류 건조기 |
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2003
- 2003-12-23 DE DE10360898A patent/DE10360898A1/de not_active Withdrawn
-
2004
- 2004-12-23 US US10/584,162 patent/US7644514B2/en not_active Expired - Fee Related
- 2004-12-23 ES ES04816352T patent/ES2305903T3/es active Active
- 2004-12-23 CN CNB2004800386139A patent/CN100482881C/zh not_active Expired - Fee Related
- 2004-12-23 EP EP04816352A patent/EP1699970B1/de not_active Not-in-force
- 2004-12-23 WO PCT/EP2004/053689 patent/WO2005064069A2/de active IP Right Grant
- 2004-12-23 DE DE502004006962T patent/DE502004006962D1/de active Active
- 2004-12-23 AT AT04816352T patent/ATE393257T1/de not_active IP Right Cessation
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009132969A1 (en) * | 2008-05-02 | 2009-11-05 | Arcelik Anonim Sirketi | A dryer |
EP2735639A3 (de) * | 2012-11-21 | 2014-09-03 | LG Electronics, Inc. | Trockner mit Wärmepumpe |
US9803312B2 (en) | 2012-11-21 | 2017-10-31 | Lg Electronics Inc. | Dryer with heat pump |
Also Published As
Publication number | Publication date |
---|---|
US20070151119A1 (en) | 2007-07-05 |
CN100482881C (zh) | 2009-04-29 |
US7644514B2 (en) | 2010-01-12 |
DE502004006962D1 (de) | 2008-06-05 |
WO2005064069A3 (de) | 2005-12-15 |
EP1699970B1 (de) | 2008-04-23 |
EP1699970A2 (de) | 2006-09-13 |
CN1902351A (zh) | 2007-01-24 |
ES2305903T3 (es) | 2008-11-01 |
ATE393257T1 (de) | 2008-05-15 |
DE10360898A1 (de) | 2005-07-21 |
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