US20070017257A1 - Washing machine with a ventilation system - Google Patents
Washing machine with a ventilation system Download PDFInfo
- Publication number
- US20070017257A1 US20070017257A1 US10/569,789 US56978906A US2007017257A1 US 20070017257 A1 US20070017257 A1 US 20070017257A1 US 56978906 A US56978906 A US 56978906A US 2007017257 A1 US2007017257 A1 US 2007017257A1
- Authority
- US
- United States
- Prior art keywords
- washing tub
- detergent
- flushing device
- ventilation
- washing machine
- 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.)
- Abandoned
Links
Images
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
- D06F37/26—Casings; Tubs
- D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
-
- 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
- D06F37/26—Casings; Tubs
-
- 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
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention relates to a washing machine in which the supplementary ventilation line is connected to an opening as high as possible on the washing tub and running to a nozzle, arranged as high as possible on the detergent flushing device, by means of an additional ventilation system which provides a ventilation to prevent an accident with a stopped machine and a closed door. The detergent introduction line runs from the detergent flushing device to an inlet nozzle, placed as far as possible from the ventilation nozzle in the upper region of the washing tub, such that no reservoirs of water can form in the line. Both lines are connected to the atmosphere by means of the flushing device. According to the invention, the ventilation system provides an adequate supply of fresh air. Noise on operation of the washing machine is adequately damped and the foam and water vapor outlet can be as good as excluded.
Description
- The present invention relates to a washing machine comprising a detergent flushing device and a detergent introduction line running to the washing tub, which has a free connection to the surrounding atmosphere, as well as a supplementary ventilation line connected to the washing tub.
- The care agents required for a washing process are deposited in an insert or a drawer of the flushing device before the program begins. The flushing device is usually arranged in the upper area of the washing machine. A plurality of compartments are provided for receiving different types and/or quantities of washing care agents, which are flushed out in an automatically controlled manner during the individual washing program phases by means of fresh water supplied to the washing machine from an external supply network controlled by valves. The water-care agent mixture flows into the washing tub via a flushing hose. The laundry is placed into or removed from the washing machine via the loading opening provided in the appliance housing which can be closed in a watertight fashion by means of a door. The door size is adapted to the laundry drum.
- The washing tub with the drum and the flushing container as well as its connections and hose connections are an outwardly sealed closed system when the loading door is closed. Ventilation of the system is usually provided for trouble-free and low-noise operation of the washing machine. This type of ventilation has the effect that pressure equalisation can take place during filling of the washing tub with water or washing solution and during spinning. This is especially necessary for reducing the noise which can occur as a result of compressions during spinning. In addition, the pressure equalisation makes it possible to achieve a higher accuracy during regulation of the liquid level in the washing tub.
- In known washing machines, the ventilation is effected via the washing tub or the flushing container. According to a solution described in DE 44 31 075 A1, openings running from inside to outside are provided for pressure equalisation in the upper area of the washing tub. In order to prevent steam or foam from escaping during the program run, condensation devices are additionally provided. DE 196 19 602 A1 is cited as an example of ventilation via the flushing container. It is proposed therein that the housing of a flushing container should be divided by a separating insert into a flushing area for the water-care agent mixture and a ventilation area for the washing tub. In operative connection with guiding webs moulded in the flushing container housing and running perpendicularly, it is ensured that there is always a free cross-section for the ventilation of the washing tub.
- In washing machines with a very large capacity, the loading opening matched to the drum is so wide that children can unintentionally climb into the appliance. The ventilation systems described above are frequently not sufficient to ventilate the washing tub when the washing machine is stopped and the door closed so that children who have climbed in can be protected from suffocation.
- For this reason such large washing machines are fitted with additional emergency ventilation. In washing machines of known manufacturers, the emergency ventilation is achieved by means of a hose which is connected to the washing tub in an area located right at the bottom and is guided upwards from there. The opening of the hose which has a free connection to the atmosphere lies above the washing tub or at least near the upper boundary of the washing tub. Such emergency ventilation is simple to achieve and its installation presents no problems in principle. The efficiency of this type of ventilation hose depends on its inside diameter. Adequate ventilation requires a very large inside diameter of the hose. This results in the disadvantage that without additional countermeasures, the operating noise penetrates towards the outside via the hose almost without damping and thus clearly perceptibly increases the noise level. It is also a disadvantage that water vapour and foam can also escape to the outside via the ventilation hose.
- It is the object of the invention to provide an improved ventilation system which efficiently fulfils the function of guiding sufficient fresh air into the washing tub and at the same time preventing the escape of water vapour and foam towards the outside and largely suppressing the noise penetrating from inside the appliance towards the outside so that the noise level does not rise noticeably during operation of the washing machine.
- According to the invention, the object is solved by said features in the characterising part of
claim 1. Further advantageous features of the invention are contained in the dependent claims. - As provided by the invention, the supplementary ventilation line is guided from an opening provided as high as possible on the washing tub to a nozzle arranged as high as possible on the detergent flushing device. The detergent introduction line is guided from the detergent flushing device to an upper region of the washing tub located as far as possible from the opening of the ventilation nozzle so that no water reservoir can form in the line. Both lines are connected to the atmosphere via the detergent flushing device.
- In an embodiment of the invention, the detergent flushing device comprises for this purpose on the one hand a lower portion and a cover lying on said lower portion and on the other hand the cover and/or its bearing surface towards the lower portion of the flushing device have air-permeable spacing compartments in relation to a portion laterally adjacent to the cover and/or to the lower portion.
- For sealing the detergent flushing device for protection against spray, according to an advantageous development of the invention, its cover has elevated webs on its underside which are aligned parallel to the spacing compartments.
- The two lines, the detergent supply line and the ventilation line, can best be arranged far from one another by connecting the detergent introduction line to an inlet nozzle arranged on the bottom of the washing tub and by the bottom of the washing tub having a chimney-like recess in the area of the inlet nozzle.
- An important advantage is obtained from the ventilation system according to the invention in that fresh air can be supplied by circulation. For further improvement of the ventilation in one embodiment of the invention a chimney-like extension of the bottom of the washing tub is provided in the area of the inlet nozzle. The chimney-like extension can advantageously be a component of a shaping which stabilises the washing tub.
- As a result of the ventilation of the washing tub configured as defined by the invention, the noise during operation of the washing machine is sufficiently damped. Escape of foam and water vapour are almost completely eliminated because of the large condensing surfaces in the inlet hose and the flushing container as well as the special design of the opening slits in the flushing container.
- The invention is explained in detail hereinafter with reference to an exemplary embodiment. The relevant drawings show
-
FIG. 1 a washing machine in a cutaway side view, -
FIG. 2 a detergent flushing device in a cutaway front view and -
FIG. 3 a back view of a washing tub constructed according to the invention. -
FIG. 1 shows awashing machine 1 shown in cross-section from the side. As inFIGS. 2 and 3 , this diagram only shows those components which are important for the functioning of the ventilation system according to the invention. Thewashing tub 2 and thelaundry drum 5 rotatable about a horizontal axis therein have a front loading opening which is accessible from outside via thedoor 4 in the housing of thewashing machine 1. An elastic sleeve seals thewashing tub 2 from thehousing 1 and thewashing tub 2 can be closed in a watertight fashion towards the outside by means of thedoor 4. - The detergent flushing device 6, a plastic component, is located directly below the cover panel of the
washing machine 1 and is accessible for filling with laundry care agents via an opening in thecover 19, which is constructed as a control panel here. The laundry care agent is flushed out in a program-controlled manner using fresh water supplied from an external water supply system via theconnection 18. - The bottom of the detergent flushing device 6 has a gradient and discharges in the
outlet nozzle 11 for thedetergent introduction line 8. This is positioned with respect to theinlet nozzle 7 arranged in the rear upper area of thewashing tub casing 2 so that the formation of a water reservoir is eliminated in all cases and thus the flow opening cannot be restricted. Theinlet nozzle 7 is placed on thewashing tub 2 so that it is laterally offset by means of a beading 17 formed on the bottom of thewashing tub 3. - The
ventilation nozzle 9 for thesupplementary ventilation hose 10 is attached at the highest position on the front casing edge of thewashing tub 2. Thecorresponding nozzle 12 is likewise formed on the detergent flushing device 6 at a highest possible point. - The
hoses washing tub 2 to the detergent flushing device 6 are constructed as vibrationally elastic in order to avoid the transmission of vibrations from the spring-suspendedwashing tub 2 to the detergent flushing device 6 fixedly installed in the housing of thewashing machine 1. The connectingnozzles washing tub 2 lie as far as possible from one another at the edges of thewashing tub casing 2. The ventilation of thewashing tub 2 in the lower area can be accomplished by this arrangement on the shortest path via the perpendicular intermediate compartments formed by thewashing tub 2 and thedrum 5. The air supply is additionally conveyed by the chimney-like formation ofbeads 17 which are otherwise formed in a star shape as stabilisation in the bottom of the washing tub 3 (seeFIG. 3 ). - The atmospheric connection of the ventilation system is made via air-
permeable spacing compartments 14 in the detergent flushing device 6 between the edges of thecover 13 and those of the lid 19 (seeFIG. 2 ). In the exemplary embodiment thespacing compartments 14 surrounding thecover 13 are obliquely oriented so that water penetrating into these compartments can flow off more easily. Thespacing compartments 14 are formed such that thecover 13 of the detergent flushing device 6 which is fitted into thecover 19 so that the surfaces are flush and is rotatably hinged thereto, only rests on the front corners at two points so that the edge no longer rests on thehousing portion 16 or thecover 19 in a circumferentially sealed manner. By means of this measure slot-like spacing compartments 14 are formed on all four sides of thecover 13 via which the ventilation system has free access to the atmosphere. In order to prevent spray water from being able to escape during the water intake,webs 15 aligned parallel to the spacing compartments 14 are formed on the underside of thecover 13. - The large condensing surfaces in the
detergent introduction line 8 and the detergent flushing line 6 as well as the special design of the spacing compartments 14 in the detergent flushing device 6 prevent foam and water vapour from escaping during operation of thewashing machine 1. The ventilation system according to the invention also has the effect that the noise level during operation of thewashing machine 1 is kept within narrow limits. - As can be seen from the exemplary embodiment described, the invention is simple to implement. In particular, no additional components are required and the special arrangements and formations of the substantially known elements used can be achieved using method common in the field. The chimney-
like extension 17 of thewashing tub bottom 3 in the area of theinlet nozzle 7 as defined by the invention can also be implemented, as shown in the example, without any additional expenditure by means of a recess with shape-stabilisingbeads 17 which is present in any case.
Claims (6)
1-5. (canceled)
6. A washing machine comprising a detergent flushing device and a detergent introduction line running to the washing tub, which has a free connection to the surrounding atmosphere, as well as a supplementary ventilation line connected to the washing tub, wherein the supplementary ventilation line is guided from an opening provided as high as possible on the washing tub to a nozzle arranged as high as possible on the detergent flushing device and that the detergent introduction line is guided from the detergent flushing device to an upper region of the washing tub located as far as possible from the opening of the ventilation nozzle without any formation in which a water reservoir can form.
7. The washing machine according to claim 6 , wherein the detergent flushing device comprises a lower portion and a cover lying on said lower portion and that at least one of the cover and its bearing surface towards the lower portion of the flushing device have impermeable spacing compartments in relation to a portion laterally adjacent to at least one of the cover and the lower portion.
8. The washing machine according to claim 7 , wherein the cover of the detergent flushing device has elevated webs on its underside which are aligned parallel to the spacing compartments.
9. The washing machine according to claim 6 , wherein the detergent introduction line is connected to an inlet nozzle arranged on the bottom of the washing tub and that the bottom of the washing tub has a chimney-like recess in the area of the inlet nozzle.
10. The washing machine according to claim 9 , wherein the chimney-like recess in the bottom of the washing tub is a component of a stability-enhancing shaping.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10339504A DE10339504A1 (en) | 2003-08-27 | 2003-08-27 | Washing machine |
DE10339504.0 | 2003-08-27 | ||
PCT/EP2003/011136 WO2005031058A1 (en) | 2003-08-27 | 2003-10-08 | Washing machine with a ventilation system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070017257A1 true US20070017257A1 (en) | 2007-01-25 |
Family
ID=34258244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/569,789 Abandoned US20070017257A1 (en) | 2003-08-27 | 2003-10-08 | Washing machine with a ventilation system |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070017257A1 (en) |
EP (1) | EP1660711A1 (en) |
KR (1) | KR20060060026A (en) |
CN (1) | CN1820104A (en) |
AU (1) | AU2003271706A1 (en) |
DE (1) | DE10339504A1 (en) |
WO (1) | WO2005031058A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130139556A1 (en) * | 2010-08-24 | 2013-06-06 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting domestic appliance comprising a treatment region which can be ventilated |
US10415170B2 (en) * | 2014-05-30 | 2019-09-17 | Lg Electronics Inc. | Laundry treatment apparatus with recovery unit |
US20190360144A1 (en) * | 2018-05-24 | 2019-11-28 | Haier Us Appliance Solutions, Inc. | Washing machine appliance having a selective ventilation damper |
US11739455B2 (en) | 2021-04-29 | 2023-08-29 | Whirlpool Corporation | Ventilation valve and control system for venting fresh air within a laundry appliance |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101138881B1 (en) * | 2006-06-19 | 2012-05-15 | 삼성전자주식회사 | Washing machine and method to control laundry thereof |
KR101537587B1 (en) * | 2008-03-13 | 2015-07-20 | 엘지전자 주식회사 | Laundry Treating Apparatus |
DE102008019388A1 (en) * | 2008-04-17 | 2009-10-22 | BSH Bosch und Siemens Hausgeräte GmbH | Washer dryer with a ventilated drum |
DE102011081936A1 (en) * | 2011-09-01 | 2013-03-07 | BSH Bosch und Siemens Hausgeräte GmbH | Water-bearing household appliance with a siphon |
CN107523965A (en) * | 2016-06-22 | 2017-12-29 | 苏州三星电子有限公司 | Washing machine and its exhaust outlet structure |
TR201619977A2 (en) | 2016-12-29 | 2018-07-23 | Arcelik As | A WASHING MACHINE |
CN111058237B (en) * | 2019-12-05 | 2023-07-07 | 青岛海尔洗涤电器有限公司 | Drum washing machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4110075A (en) * | 1975-12-04 | 1978-08-29 | Bosch-Siemens Hausgerate Gmbh | Process for washing textiles in an automatic washing machine, working substances and apparatus for its performance |
US6148645A (en) * | 1999-05-14 | 2000-11-21 | Micell Technologies, Inc. | Detergent injection systems for carbon dioxide cleaning apparatus |
US6849094B1 (en) * | 1999-03-25 | 2005-02-01 | John Herbert North | Washing and drying machine and dry-cleaning machines |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1460837B2 (en) * | 1963-06-28 | 1971-06-24 | G. Bauknecht GmbH, Elektrotechni sehe Fabriken, 7000 Stuttgart | DETERGENT DISPENSING DEVICE FOR AUTOMATIC WASHING MACHINES |
GB2338543B (en) * | 1998-06-18 | 2002-08-07 | Gen Domestic Appliances Ltd | Washer dryer |
DE10122514A1 (en) * | 2000-05-10 | 2002-03-14 | Aeg Hausgeraete Gmbh | Rinsing device for laundry or dish washing machine has walls contacted by rinsing medium provided with self-cleaning surface structure |
GB2379452B (en) * | 2001-09-06 | 2005-02-09 | Dyson Ltd | Inlet and vent duct for a laundry appliance |
-
2003
- 2003-08-27 DE DE10339504A patent/DE10339504A1/en not_active Withdrawn
- 2003-10-08 AU AU2003271706A patent/AU2003271706A1/en not_active Abandoned
- 2003-10-08 KR KR1020067003130A patent/KR20060060026A/en not_active Application Discontinuation
- 2003-10-08 EP EP03753530A patent/EP1660711A1/en not_active Withdrawn
- 2003-10-08 CN CNA2003801104347A patent/CN1820104A/en active Pending
- 2003-10-08 WO PCT/EP2003/011136 patent/WO2005031058A1/en not_active Application Discontinuation
- 2003-10-08 US US10/569,789 patent/US20070017257A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4110075A (en) * | 1975-12-04 | 1978-08-29 | Bosch-Siemens Hausgerate Gmbh | Process for washing textiles in an automatic washing machine, working substances and apparatus for its performance |
US6849094B1 (en) * | 1999-03-25 | 2005-02-01 | John Herbert North | Washing and drying machine and dry-cleaning machines |
US6148645A (en) * | 1999-05-14 | 2000-11-21 | Micell Technologies, Inc. | Detergent injection systems for carbon dioxide cleaning apparatus |
US6499322B1 (en) * | 1999-05-14 | 2002-12-31 | Micell Technologies, Inc. | Detergent injection systems for carbon dioxide cleaning apparatus |
US6711773B2 (en) * | 1999-05-14 | 2004-03-30 | Micell Technologies, Inc. | Detergent injection methods for carbon dioxide cleaning apparatus |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130139556A1 (en) * | 2010-08-24 | 2013-06-06 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting domestic appliance comprising a treatment region which can be ventilated |
US9181647B2 (en) * | 2010-08-24 | 2015-11-10 | BSH Hausgeräte GmbH | Water-conducting domestic appliance comprising a treatment region which can be ventilated |
US10415170B2 (en) * | 2014-05-30 | 2019-09-17 | Lg Electronics Inc. | Laundry treatment apparatus with recovery unit |
US20190360144A1 (en) * | 2018-05-24 | 2019-11-28 | Haier Us Appliance Solutions, Inc. | Washing machine appliance having a selective ventilation damper |
US11739455B2 (en) | 2021-04-29 | 2023-08-29 | Whirlpool Corporation | Ventilation valve and control system for venting fresh air within a laundry appliance |
Also Published As
Publication number | Publication date |
---|---|
KR20060060026A (en) | 2006-06-02 |
WO2005031058A1 (en) | 2005-04-07 |
EP1660711A1 (en) | 2006-05-31 |
CN1820104A (en) | 2006-08-16 |
AU2003271706A1 (en) | 2005-04-14 |
DE10339504A1 (en) | 2005-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BSH BOSCH UND SIEMENS HAUSGERATE GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BOLDUAN, EDWIN;HANAU, ANDREAS;SEIFFERT, EDMUND;AND OTHERS;REEL/FRAME:017625/0791 Effective date: 20060223 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |