WO2004111327A1 - A washer/dryer - Google Patents

A washer/dryer Download PDF

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Publication number
WO2004111327A1
WO2004111327A1 PCT/IB2004/050891 IB2004050891W WO2004111327A1 WO 2004111327 A1 WO2004111327 A1 WO 2004111327A1 IB 2004050891 W IB2004050891 W IB 2004050891W WO 2004111327 A1 WO2004111327 A1 WO 2004111327A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetron
air
air duct
washer
dryer
Prior art date
Application number
PCT/IB2004/050891
Other languages
French (fr)
Inventor
Tunc Tuncel
Serap Dikmenli
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2004111327A1 publication Critical patent/WO2004111327A1/en

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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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements
    • 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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • D06F58/266—Microwave heating equipment

Definitions

  • This invention relates to a washer/dryer using microwave.
  • the washer/dryers using microwave utilize from a magnetron producing microwave energy for the realization of the drying process.
  • a magnetron producing microwave energy for the realization of the drying process.
  • these fibers accumulate in the cooling fins and cause the clog of the system and the danger of fire due to the arc jumping.
  • English Patent 266989 defines a magnetron comprising cooling fins and coated with metal casting.
  • American Patent 4794304 discloses a radiator having horizontal plates attached onto the outer surface of the magnetron anode.
  • American Patent 4434564 defines a device used in the dryers for the recovery of the discharged heat.
  • American Patent 5983520 describes a dryer using a magnetron on the central axial of the back wall of the tub emitting the microwave energy into the washing drum and a microwave which transfers the humid air in the drum through the condenser and discharges the accumulated water from the cycle by means of a discharge pipe.
  • American Patent 5463821 discloses a dryer using microwave mounted in the baffles of the drum and cools the magnetron by means of the air circulating through the drum via air passages through the baffles and into the drum so long as the drum rotates.
  • the object of this invention is to provide a washer/dryer which achieves an efficient drying performance and prevents the accumulation of the fibers of the laundry by means of the recovery of heating energy into the cycle during the microwave production in the drying cycle.
  • the washer/drier realized to attain the object of the present invention is illustrated in the attached drawings, wherein
  • Figure 1 is a schematic view of a washer/dryer.
  • Figure 2 is a perspective view of a magnetron casing.
  • Figure 3 is a vertical schematic view of a magnetron casing against the direction of the flow of air.
  • Figure 4 is a cross sectional view of an air duct and a magnetron casing in the direction of the flow of air.
  • Figure 5 is an exploded view of a magnetron and a magnetron casing.
  • Figure 6 is a schematic view of a magnetron casing comprising cooling fins extended towards an air duct in the direction of the flow of air.
  • Figure 7 is a schematic view of a magnetron casing comprising cooling fins extended towards an air duct against the direction of the flow of air.
  • Figure 8 is a schematic view of a washer/dryer comprising a by-pass pipe.
  • the washer/dryer (1) using microwave comprises a drum (3) in which the laundry is put, a tub (2) in which the drum (3) moves, a magnetron (5) which applies the microwave energy for the vaporization of the water content of the laundry, a wave guide (7) which guides the microwave over the laundry, a condenser (8) which removes the moisture from the air by means of vaporization, a fan (9) which circulates the air in the drying cycle, a heater (10) which provides the heating energy and is used with microwave energy to speed up the drying process when the microwave energy is not used in the drying cycle, a tub outlet (11) where the humid air is absorbed from the tub (2), a tub inlet (12) where the heated air excluded from humidity is given into the tub (2) and an air duct (4) in which the drying cycle air circulates.
  • the air duct (4) comprises a magnetron casing (6) which protects the magnetron (5) and provides the cooling of the magnetron (5) and the transfer of the heating energy to the drying cycle.
  • the magnetron casing (6) comprises one or more air passages (13) which provides the passage of the air in the drying cycle, an inlet surface (14) in which the air in the drying cycle enters into the air passage opening (13), an outlet surface (15) in which the air in the drying cycle leaves from the air passage opening (13), one or more cooling fin (16) extended towards the air duct (4) in the direction of the flow of air, an anode contact surface (17) which covers the magnetron (5) all over and transfers the heat to the cooling fins (16), one or more magnet housing surface (18) in which the magnetrons are placed and one or more side walls (19) which provides the attachment and cooling of the magnetron (5).
  • the heat obtained from the magnetron (5) during the microwave production is transferred from the anode contact surface (17) covering the anode region of the magnetron (5) to the cooling fins and accordingly it is transferred from the cooling fins (16) to the air duct (4) by the conveyance of the heat. Therefore when the magnetron (5) is cooled, the temperature of the drying cycle is increased. The air in which the moisture is removed and the heat is increased during its passage through the magnetron (5) reaches at the laundry through the tub inlet (12) and continues the cycle until the completion of the drying process.
  • the air duct (4) comprises one or more spraying nozzles (20) for removing the fibers in the magnetron casing (6) by means of a cleaning fluid.
  • the surfaces of the magnetron casing (6) which contact with the air are coated with preferably a Teflon material which is resistant to heat, corrosion and fibers for avoiding the accumulation of the fibers.
  • the air duct (4) comprises one or more bypass pipes (21) in which the high amount of fibers reaching at the outlet of the fan (9) in the drying cycle are directed by means of the centrifugal force to avoid the accumulation of fibers in the magnetron (5), a magnetron pipe (22) for the flow of the air in the drying cycle over the magnetron (5) and one or more air direction valves (23) preferably in the form of a mechanical or electrical controlled flap for the direction of the air in the drying cycle to the by-pass pipe (21) and/or magnetron pipe (22) at the desired amount.
  • the magnetron (5) is cooled by directing the air of the drying cycle over and heating energy is provided for the system.
  • the magnetron (5) is not operated, some or all of the air of the drying cycle is not directed to the magnetron (5) and the accumulation of the fibers is avoided.
  • Heater (10) can be positioned to the further point where the bypass pipe (21) and the magnetron pipe (22) is connected in the air duct (4) or either to the by-pass pipe (21) or the magnetron pipe (22) if desired.

Abstract

This invention relates to a washer/dryer (1) using microwave energy for the drying process and providing the prevention of the accumulation of the fibers caused by the laundry and therefore an efficient drying by the recovery of the heating energy during the microwave production.

Description

Description A WASHER/DRYER
[001 ] This invention relates to a washer/dryer using microwave.
[002] The washer/dryers using microwave utilize from a magnetron producing microwave energy for the realization of the drying process. When the drying air is desired to pass over the magnetron in the drying cycles where the fibers of the laundry circulate freely, these fibers accumulate in the cooling fins and cause the clog of the system and the danger of fire due to the arc jumping. [003] English Patent 266989 defines a magnetron comprising cooling fins and coated with metal casting. [004] American Patent 4794304 discloses a radiator having horizontal plates attached onto the outer surface of the magnetron anode. [005] American Patent 4434564 defines a device used in the dryers for the recovery of the discharged heat. [006] American Patent 5983520 describes a dryer using a magnetron on the central axial of the back wall of the tub emitting the microwave energy into the washing drum and a microwave which transfers the humid air in the drum through the condenser and discharges the accumulated water from the cycle by means of a discharge pipe. [007] American Patent 5463821 discloses a dryer using microwave mounted in the baffles of the drum and cools the magnetron by means of the air circulating through the drum via air passages through the baffles and into the drum so long as the drum rotates. [008] The object of this invention is to provide a washer/dryer which achieves an efficient drying performance and prevents the accumulation of the fibers of the laundry by means of the recovery of heating energy into the cycle during the microwave production in the drying cycle. [009] The washer/drier realized to attain the object of the present invention is illustrated in the attached drawings, wherein
[010] Figure 1 is a schematic view of a washer/dryer. [011] Figure 2 is a perspective view of a magnetron casing. [012] Figure 3 is a vertical schematic view of a magnetron casing against the direction of the flow of air. [013] Figure 4 is a cross sectional view of an air duct and a magnetron casing in the direction of the flow of air.
[014] Figure 5 is an exploded view of a magnetron and a magnetron casing. [015] Figure 6 is a schematic view of a magnetron casing comprising cooling fins extended towards an air duct in the direction of the flow of air. [016] Figure 7 is a schematic view of a magnetron casing comprising cooling fins extended towards an air duct against the direction of the flow of air. [017] Figure 8 is a schematic view of a washer/dryer comprising a by-pass pipe. [018] Various parts in the drawings have been numbered individually and they are listed here below:
1. Washer/dryer
2. Tub
3. Drum
4. Air duct
5. Magnetron
6. Magnetron casing
7. Wave guide
8. Condenser
9. Fan
10. Heater
11. Tub outlet
12. Tub inlet
13. Air passage
14. Inlet surface
15. Outlet surface
16. Cooling fin
17. Anode contact surface
18. Magnet housing surface
19. Side wall
20. Spraying nozzle
21. By-pass pipe
22. Magnetron pipe
23. Air direction valve
[019] The washer/dryer (1) using microwave comprises a drum (3) in which the laundry is put, a tub (2) in which the drum (3) moves, a magnetron (5) which applies the microwave energy for the vaporization of the water content of the laundry, a wave guide (7) which guides the microwave over the laundry, a condenser (8) which removes the moisture from the air by means of vaporization, a fan (9) which circulates the air in the drying cycle, a heater (10) which provides the heating energy and is used with microwave energy to speed up the drying process when the microwave energy is not used in the drying cycle, a tub outlet (11) where the humid air is absorbed from the tub (2), a tub inlet (12) where the heated air excluded from humidity is given into the tub (2) and an air duct (4) in which the drying cycle air circulates.
[020] The air duct (4) comprises a magnetron casing (6) which protects the magnetron (5) and provides the cooling of the magnetron (5) and the transfer of the heating energy to the drying cycle.
[021] The magnetron casing (6) comprises one or more air passages (13) which provides the passage of the air in the drying cycle, an inlet surface (14) in which the air in the drying cycle enters into the air passage opening (13), an outlet surface (15) in which the air in the drying cycle leaves from the air passage opening (13), one or more cooling fin (16) extended towards the air duct (4) in the direction of the flow of air, an anode contact surface (17) which covers the magnetron (5) all over and transfers the heat to the cooling fins (16), one or more magnet housing surface (18) in which the magnetrons are placed and one or more side walls (19) which provides the attachment and cooling of the magnetron (5).
[022] When the microwave energy is applied in the drying cycle in the washer/dryers (1), water content in the laundry vaporizes and humid air is formed in the tub (2). The said humid air passes through the tub outlet (11) and reaches at the condenser (8) and the water content is removed due to the vaporization. The drying cycle air which passes through the condenser (8) is directed to the magnetron (5) through the air duct (4) by means of the fan (9). The fibers in the air directed to the magnetron (5) pass through the fins (6) and continue their free circulation in the drying cycle. The heat obtained from the magnetron (5) during the microwave production is transferred from the anode contact surface (17) covering the anode region of the magnetron (5) to the cooling fins and accordingly it is transferred from the cooling fins (16) to the air duct (4) by the conveyance of the heat. Therefore when the magnetron (5) is cooled, the temperature of the drying cycle is increased. The air in which the moisture is removed and the heat is increased during its passage through the magnetron (5) reaches at the laundry through the tub inlet (12) and continues the cycle until the completion of the drying process.
[023] In another embodiment of the invention, the air duct (4) comprises one or more spraying nozzles (20) for removing the fibers in the magnetron casing (6) by means of a cleaning fluid.
[024] In another embodiment of the invention, the surfaces of the magnetron casing (6) which contact with the air are coated with preferably a Teflon material which is resistant to heat, corrosion and fibers for avoiding the accumulation of the fibers.
[025] In another embodiment of the invention, the air duct (4) comprises one or more bypass pipes (21) in which the high amount of fibers reaching at the outlet of the fan (9) in the drying cycle are directed by means of the centrifugal force to avoid the accumulation of fibers in the magnetron (5), a magnetron pipe (22) for the flow of the air in the drying cycle over the magnetron (5) and one or more air direction valves (23) preferably in the form of a mechanical or electrical controlled flap for the direction of the air in the drying cycle to the by-pass pipe (21) and/or magnetron pipe (22) at the desired amount.
[026] When the magnetron (5) is not operated due to excessive heating as a result of various reasons or when the drying cycle is started and completed or when the magnetron (5) is not required to be operated according to the desired drying degree, some of the air of the drying cycle in the air duct (4) is directed to the by-pass pipe (21) and the rest is directed to the magnetron pipe (22). The by-pass pipe (21) is positioned to collect most of the fibers scattered to the sides of the air duct (4) due to the centrifugal force formed by the fan (9) during the drying cycle. The air in the drying cycle and all of the fibers are directed to the by-pass pipe (21) or the magnetron pipe (22) by means of the air direction valve (23). In this way, the magnetron (5) is cooled by directing the air of the drying cycle over and heating energy is provided for the system. On the other hand, when the magnetron (5) is not operated, some or all of the air of the drying cycle is not directed to the magnetron (5) and the accumulation of the fibers is avoided. Heater (10) can be positioned to the further point where the bypass pipe (21) and the magnetron pipe (22) is connected in the air duct (4) or either to the by-pass pipe (21) or the magnetron pipe (22) if desired. In the embodiment in which all of the air of the drying cycle is directed to the magnetron (5) or by-pass pipe (21) is not used, anode contact surface (17) in the magnetron casing (6) and its surface area is increased and drying performance is promoted by means of the heating energy transferred to the drying cycle by means of the cooling fins (16) extending towards the air duct (4) when the magnetron (5) is cooled. Meanwhile corrosion which may be caused by the direction of the humid air to the magnetron (5) is prevented thanks to the fact that the surfaces of the magnetron (5) contacting with the humid air are closed by the magnetron casing (6). As the distance between the cooling fins (16) are increased in accordance with the traditional embodiments, the attachment and accumulation of the fibers in the drying cycle respectively through the cooling fins (16) and over the magnetron (5) are avoided.

Claims

Claims
[001] A washer/dryer (1) comprising a drum (3) in which the laundry is put, a tub (2) in which the drum (3) moves and a magnetron (5) which applies the microwave energy for the vaporization of the water content of the laundry characterized with an air duct (4) comprising a magnetron casing (6) having one or more air passages (13) which provides the passage of the air in the drying cycle, an inlet surface (14) in which the air in the drying cycle enters into the air passage opening (13), an outlet surface (15) in which the air in the drying cycle leaves from the air passage (13), one or more cooling fin (16) extended towards the air duct (4) in the direction of the flow of air to protect the magnetron (5) and provide the cooling of the magnetron (5) and the transfer of the heating energy to the drying cycle.
[002] A washer/dryer (1) as defined in claim 1 characterized with an air duct (4) comprising a magnetron casing (6) having one or more cooling fins (16) extended from the outlet surface (15) towards the air duct (4).
[003] A washer/dryer (1) as defined in claim 1 characterized with an air duct (4) comprising a magnetron casing (6) having one or more cooling fins (16) extended from the inlet surface (14) towards the air duct (4).
[004] A washer/dryer (1) as defined in any of the claims above characterized with an air duct (4) comprising a magnetron casing (6) having an anode contact surface (17) which covers the magnetron (5) all over and transfers the heat to the cooling fins (16).
[005] A washer/dryer (1) as defined in any of the claims above characterized with an air duct (4) comprising a magnetron casing (6) having one or more magnet housing surface (18) in which the magnets are placed.
[006] A washer/dryer (1) as defined in any of the claims above characterized with an air duct (4) comprising a magnetron casing (6) having one or more side walls (19) which provides the attachment and cooling of the magnetron (5).
[007] A washer/dryer (1) as defined in any of the claims above characterized with an air duct (4) comprising one or more spraying nozzles (20) for removing the fibers in the magnetron casing (6) by means of a cleaning fluid.
[008] A washer/dryer (1) as defined in any of the claims above characterized with an air duct (4) comprising a magnetron casing (6) the surfaces of which contact with the air are coated with Teflon material which is resistant to heat, corrosion and fibers for avoiding the accumulation of the fibers.
[009] A washer/dryer (1) as defined in any of the claims above characterized with an air duct (4) comprising one or more by-pass pipes (21) which are positioned to collect most of the fibers scattered to the sides of the air duct (4) due to the centrifugal force during the drying cycle and a magnetron pipe (22) for the flow of the air in the drying cycle over the magnetron (5). A washer/dryer (1) as defined in claim 9 characterized with an air duct (4) comprising one or more air direction valves (23) for the direction of the air in the drying cycle to the by-pass pipe (21) and/or magnetron pipe (22) at the desired amount.
PCT/IB2004/050891 2003-06-12 2004-06-11 A washer/dryer WO2004111327A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2003/00874 2003-06-12
TR200300874 2003-06-12

Publications (1)

Publication Number Publication Date
WO2004111327A1 true WO2004111327A1 (en) 2004-12-23

Family

ID=33550706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/050891 WO2004111327A1 (en) 2003-06-12 2004-06-11 A washer/dryer

Country Status (2)

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TR (1) TR200600614T1 (en)
WO (1) WO2004111327A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018135845A1 (en) 2017-01-18 2018-07-26 Samsung Electronics Co., Ltd. Dryer and method for controlling the same
CN114855435A (en) * 2017-08-09 2022-08-05 Lg电子株式会社 Clothes treating device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458755A (en) * 1966-06-02 1969-07-29 Gen Electric Crossed-field discharge device and microwave circuits incorporating the same
US3854219A (en) * 1973-06-18 1974-12-17 Gen Electric Electronic dryer
US4765066A (en) * 1987-08-19 1988-08-23 Vbe Inc. Microwave clothes dryer
DE4212965A1 (en) * 1992-04-18 1993-10-21 Bauknecht Hausgeraete Condensn. dryer with self-cleaning - has condensn. water container including filter element located above water level in process air current, has low cooling water consumption
DE19739378A1 (en) * 1997-09-09 1999-03-11 Aeg Hausgeraete Gmbh Electrical domestic laundry dryer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458755A (en) * 1966-06-02 1969-07-29 Gen Electric Crossed-field discharge device and microwave circuits incorporating the same
US3854219A (en) * 1973-06-18 1974-12-17 Gen Electric Electronic dryer
US4765066A (en) * 1987-08-19 1988-08-23 Vbe Inc. Microwave clothes dryer
DE4212965A1 (en) * 1992-04-18 1993-10-21 Bauknecht Hausgeraete Condensn. dryer with self-cleaning - has condensn. water container including filter element located above water level in process air current, has low cooling water consumption
DE19739378A1 (en) * 1997-09-09 1999-03-11 Aeg Hausgeraete Gmbh Electrical domestic laundry dryer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018135845A1 (en) 2017-01-18 2018-07-26 Samsung Electronics Co., Ltd. Dryer and method for controlling the same
EP3555358A4 (en) * 2017-01-18 2020-01-15 Samsung Electronics Co., Ltd. Dryer and method for controlling the same
US10563343B2 (en) 2017-01-18 2020-02-18 Samsung Electronics Co., Ltd. Dryer and method for controlling the same
AU2018210637B2 (en) * 2017-01-18 2023-04-27 Samsung Electronics Co., Ltd. Dryer and method for controlling the same
CN114855435A (en) * 2017-08-09 2022-08-05 Lg电子株式会社 Clothes treating device
CN114855435B (en) * 2017-08-09 2024-01-02 Lg电子株式会社 Clothes treating apparatus

Also Published As

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