WO2019068697A1 - A liquid detergent and softener dosing system for washing machines - Google Patents
A liquid detergent and softener dosing system for washing machines Download PDFInfo
- Publication number
- WO2019068697A1 WO2019068697A1 PCT/EP2018/076767 EP2018076767W WO2019068697A1 WO 2019068697 A1 WO2019068697 A1 WO 2019068697A1 EP 2018076767 W EP2018076767 W EP 2018076767W WO 2019068697 A1 WO2019068697 A1 WO 2019068697A1
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- WO
- WIPO (PCT)
- Prior art keywords
- softener
- flow
- outlet
- hydraulic pump
- detergent
- Prior art date
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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
- 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
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
-
- 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
Definitions
- the present invention relates to a liquid detergent and softener dosing system suitable for use in washing machines.
- Liquid detergent use in washing machines is getting more common. Accordingly, in order to provide ease of use, automatic dosing systems are being developed to store the liquid cleaning agent in a chamber and to convey this to washing water in a controlled manner according to the requirement of a washing program.
- the common feature of the state of the art dosing systems is that they have chambers storing liquid detergent and softener, and hydraulic pumps capable of transferring the detergent to the washing environment in a desired amount.
- liquid dosing systems of the state of the art comprise two separate control valves controlling liquid detergent and softener flow from the chambers where they are stored, and two separate hydraulic dosing pumps enabling the liquid detergent and the softener to be dosed at different times according to a washing program, increasing the cost of the system.
- European patent no. EP2428607 (B1) relates to an automatic liquid detergent dosing system used in a household appliance.
- European patent no. EP2048276 (B1) relates to a system storing powder and liquid detergent and dosing detergents in a washing machine.
- Patent application no. WO2008138798 (A2) relates to a washing machine comprising a detergent dosing system.
- the aim of the present invention is to realize an automatic liquid detergent and softener dosing system suitable for use in washing machines, whose number of parts is reduced, enabling dosing in a precise manner.
- the dosing system realized to achieve the aim of the present invention is suitable for use in washing machines, and comprises in the detergent drawer a first chamber in which liquid detergent is stored, a second chamber in which softener is stored, a hydraulic pump enabling dosing the liquid agents stored in a detergent drawer, and a control valve controlling the passage of the liquid agents to the hydraulic pump.
- the dosing system further comprises a liquid detergent outlet through which liquid detergent flow from the detergent box is realized in order to be dosed, a softener outlet through which softener flow is realized in order to be dosed, and a flow guidance mechanism provided between the liquid detergent outlet, the softener outlet and the control valve, enabling only the liquid detergent or only the softener to be sent to a single hydraulic pump in order to be dosed in different times according to the steps of a washing process.
- the flow guidance mechanism comprises a solenoid valve with two inlets (liquid detergent and softener) and one outlet (liquid detergent or softener).
- the flow guidance mechanism comprises a fork-pipe whose two separate inlets are connected to the liquid detergent outlet and the softener outlet, and whose single outlet is connected to the control valve, and a flap with two positions provided in said fork-pipe, allowing only the liquid detergent to flow into the hydraulic pump in its first position, and allowing only the softener to flow into the hydraulic pump in its second position.
- Figure 1 is a schematic view of a washing machine and the liquid detergent-softener dosing system thereof.
- Figure 2 is a schematic view of a dosing system in an embodiment of the invention.
- Figure 3 is a schematic view of a dosing system in another embodiment of the invention.
- Figure 4 is a detail view of the flow control mechanism in the position where the flap directs the liquid detergent.
- Figure 5 is a detail view of the flow control mechanism in the position where the flap directs the softener.
- Figure 6 is a side view of a hydraulic pump.
- Figure 7 is a sectional view of Figure 6 along the axis A-A.
- Figure 8 is a sectional view of Figure 6 along the axis B-B.
- the washing machine (20) comprises a tub (2) in which washing – drying processes are performed, and a drum (3) rotating in the tub (2), in which laundry items are placed.
- the liquid detergent and softener dosing system (1) (hereinafter referred to as the “dosing system (1)”) suitable for use in the washing machine (20), comprises a detergent drawer (6) having a first chamber (4) in which liquid detergent is stored, and a second chamber (5) in which softener is stored, a housing (7) or a “detergent box” in which the detergent drawer (6) is placed, a tub outlet (8) provided below the housing (7), enabling the liquid detergent and the softener ( hereinafter both referred to as “liquid”) collected on its base by being dosed, to be swept by water and to be sent to the tub (2), a hydraulic pump (9) enabling the liquids stored in the detergent drawer (6) to be transferred into the housing (7) by being dosed in order to be sent to the washing environment in the tub (2) in predetermined amounts for the main washing and rinsing processes, and a control valve (10) enabling flow conduction between the detergent drawer (6) and the hydraulic pump (9), allowing liquid flow from the detergent drawer (6) to the hydraulic pump
- the dosing system (1) of the invention comprises
- a flow guidance mechanism (13) provided between the liquid detergent outlet (11), the softener outlet (12) and the control valve (10), enabling only the liquid detergent or only the softener to be sent to the same hydraulic pump (9) in order to be dosed in different times according to the steps of a washing process.
- the flow guidance mechanism (13) whose operation is regulated by a control unit (not shown in the figures), directs the liquid detergent or the softener to the hydraulic pump (9) in order to be dosed according to the steps of a washing process, e.g. according to the main washing step in which liquid detergent is used, or the rinsing step in which softener is used.
- the flow guidance mechanism (13) blocks the softener flow and enables only the liquid detergent to be directed by means of the control valve (10) to the hydraulic pump (9) in order to be dosed.
- the flow guidance mechanism (13) blocks the liquid detergent flow and enables only the softener to be directed by means of the control valve (10) to the hydraulic pump (9) in order to be dosed.
- the flow guidance mechanism (13) comprises a solenoid valve (14) with two inlets and one outlet, with one of the inlets connected to the liquid detergent outlet (11), and the other inlet connected to the softener outlet (12), and the single outlet connected to the inlet of the control valve (10) ( Figure 2).
- the flow guidance mechanism (13) comprises
- the hydraulic pump (9) enabling dosing liquid detergent and softener is of the geared pump type constituted by a cooperating drive gear (17) and a driven gear (18) ( Figure 7).
- the hydraulic pump (9) comprises a water wheel (19) rotating due to the dynamic pressure of the water received from outside, and enabling the hydraulic pump (9) to operate without using electricity by transmitting its rotational motion to the drive gear (17) ( Figure 8).
- the control unit regulates the operation of the solenoid valve (14) or the flap (16) in the flow guidance mechanism (13) for dosing liquid detergent or softener.
- the solenoid valve (14) or the flap (16) directs liquid detergent to the hydraulic pump (9) in order to be dosed through the path of the first chamber (4) - the liquid detergent outlet (11) - control valve (10) in predetermined times and amounts.
- the solenoid valve (14) or the flap (16) directs softener to the hydraulic pump (9) in order to be dosed through the path of the second chamber (5) - the softener outlet (12) - control valve (10) in predetermined times and amounts.
- liquid detergent and softener are transferred to the washing environment in the tub (2) by being dosed in a precise manner.
- a single control valve (10) and a single hydraulic pump (9) is used for both liquid detergent and softener.
- the hydraulic pump (9) used for dosing is driven by a water wheel (19) rotated by the water received from outside, decreasing the cost of the system.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The present invention relates to a dosing system (1) suitable for use in a washing machine (20), comprising a detergent drawer (6) having a first chamber (4) in which liquid detergent is stored, and a second chamber (5) in which softener is stored, a housing (7) in which the detergent drawer (6) is placed, a tub outlet (8) provided below the housing (7), a hydraulic pump (9) enabling the liquids stored in the detergent drawer (6) to be dosed and transferred into the housing (7), a control valve (10) enabling flow conduction between the detergent drawer (6) and the hydraulic pump (9), allowing liquid flow from the detergent drawer (6) to the hydraulic pump (9) when the detergent drawer (6) is placed in the housing (7), and blocking liquid flow from the detergent drawer (6) to the hydraulic pump (9) when the detergent drawer (6) is drawn out of the housing (7) and a flow guidance mechanism (13).
Description
The present invention relates to a liquid detergent and softener dosing system suitable for use in washing machines.
Liquid detergent use in washing machines is getting more common. Accordingly, in order to provide ease of use, automatic dosing systems are being developed to store the liquid cleaning agent in a chamber and to convey this to washing water in a controlled manner according to the requirement of a washing program. The common feature of the state of the art dosing systems is that they have chambers storing liquid detergent and softener, and hydraulic pumps capable of transferring the detergent to the washing environment in a desired amount. In order to dose liquid detergent and softener, the liquid dosing systems of the state of the art comprise two separate control valves controlling liquid detergent and softener flow from the chambers where they are stored, and two separate hydraulic dosing pumps enabling the liquid detergent and the softener to be dosed at different times according to a washing program, increasing the cost of the system.
International patent applications no. WO2015032656 (A1) and WO2015032658 (A1) relate to washing machines comprising liquid detergent-softener dosing systems.
European patent no. EP2428607 (B1) relates to an automatic liquid detergent dosing system used in a household appliance.
European patent no. EP2048276 (B1) relates to a system storing powder and liquid detergent and dosing detergents in a washing machine.
Patent application no. WO2008138798 (A2) relates to a washing machine comprising a detergent dosing system.
The aim of the present invention is to realize an automatic liquid detergent and softener dosing system suitable for use in washing machines, whose number of parts is reduced, enabling dosing in a precise manner.
The dosing system realized to achieve the aim of the present invention is suitable for use in washing machines, and comprises in the detergent drawer a first chamber in which liquid detergent is stored, a second chamber in which softener is stored, a hydraulic pump enabling dosing the liquid agents stored in a detergent drawer, and a control valve controlling the passage of the liquid agents to the hydraulic pump. The dosing system further comprises a liquid detergent outlet through which liquid detergent flow from the detergent box is realized in order to be dosed, a softener outlet through which softener flow is realized in order to be dosed, and a flow guidance mechanism provided between the liquid detergent outlet, the softener outlet and the control valve, enabling only the liquid detergent or only the softener to be sent to a single hydraulic pump in order to be dosed in different times according to the steps of a washing process.
In an embodiment of the invention, the flow guidance mechanism comprises a solenoid valve with two inlets (liquid detergent and softener) and one outlet (liquid detergent or softener).
In another embodiment of the invention, the flow guidance mechanism comprises a fork-pipe whose two separate inlets are connected to the liquid detergent outlet and the softener outlet, and whose single outlet is connected to the control valve, and a flap with two positions provided in said fork-pipe, allowing only the liquid detergent to flow into the hydraulic pump in its first position, and allowing only the softener to flow into the hydraulic pump in its second position.
The dosing system realized to achieve the aims of the present invention is illustrated in the accompanying drawings, wherein:
Figure 1 is a schematic view of a washing machine and the liquid detergent-softener dosing system thereof.
Figure 2 is a schematic view of a dosing system in an embodiment of the invention.
Figure 3 is a schematic view of a dosing system in another embodiment of the invention.
Figure 4 is a detail view of the flow control mechanism in the position where the flap directs the liquid detergent.
Figure 5 is a detail view of the flow control mechanism in the position where the flap directs the softener.
Figure 6 is a side view of a hydraulic pump.
Figure 7 is a sectional view of Figure 6 along the axis A-A.
Figure 8 is a sectional view of Figure 6 along the axis B-B.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
- Dosing system
- Tub
- Drum
- First chamber
- Second chamber
- Detergent drawer
- Housing
- Tub outlet
- Hydraulic pump
- Control valve
- Liquid detergent outlet
- Softener outlet
- Flow guidance mechanism
- Solenoid valve
- Fork-pipe
- Flap
- Drive gear
- Driven gear
- Cogwheel
- Washing machine
The washing machine (20) comprises a tub (2) in which washing – drying processes are performed, and a drum (3) rotating in the tub (2), in which laundry items are placed.
The liquid detergent and softener dosing system (1) (hereinafter referred to as the “dosing system (1)”) suitable for use in the washing machine (20), comprises a detergent drawer (6) having a first chamber (4) in which liquid detergent is stored, and a second chamber (5) in which softener is stored, a housing (7) or a “detergent box” in which the detergent drawer (6) is placed, a tub outlet (8) provided below the housing (7), enabling the liquid detergent and the softener ( hereinafter both referred to as “liquid”) collected on its base by being dosed, to be swept by water and to be sent to the tub (2), a hydraulic pump (9) enabling the liquids stored in the detergent drawer (6) to be transferred into the housing (7) by being dosed in order to be sent to the washing environment in the tub (2) in predetermined amounts for the main washing and rinsing processes, and a control valve (10) enabling flow conduction between the detergent drawer (6) and the hydraulic pump (9), allowing liquid flow from the detergent drawer (6) to the hydraulic pump (9) when the detergent drawer (6) is placed in the housing (7), and blocking liquid flow from the detergent drawer (6) to the hydraulic pump (9) when the detergent drawer (6) is drawn out of the housing (7).
The dosing system (1) of the invention comprises
- a liquid detergent outlet (11) through which liquid detergent flow from the first chamber (4) is realized in order to be dosed and a softener outlet (12) through which softener flow from the second chamber (5) is realized in order to be dosed, both provided in the detergent drawer (6), and
- a flow guidance mechanism (13) provided between the liquid detergent outlet (11), the softener outlet (12) and the control valve (10), enabling only the liquid detergent or only the softener to be sent to the same hydraulic pump (9) in order to be dosed in different times according to the steps of a washing process.
The flow guidance mechanism (13) whose operation is regulated by a control unit (not shown in the figures), directs the liquid detergent or the softener to the hydraulic pump (9) in order to be dosed according to the steps of a washing process, e.g. according to the main washing step in which liquid detergent is used, or the rinsing step in which softener is used. In the main washing step in which liquid detergent is used, the flow guidance mechanism (13) blocks the softener flow and enables only the liquid detergent to be directed by means of the control valve (10) to the hydraulic pump (9) in order to be dosed. Whereas in the rinsing step in which softener is used, the flow guidance mechanism (13) blocks the liquid detergent flow and enables only the softener to be directed by means of the control valve (10) to the hydraulic pump (9) in order to be dosed.
In an embodiment of the invention, the flow guidance mechanism (13) comprises a solenoid valve (14) with two inlets and one outlet, with one of the inlets connected to the liquid detergent outlet (11), and the other inlet connected to the softener outlet (12), and the single outlet connected to the inlet of the control valve (10) (Figure 2).
In another embodiment of the invention, the flow guidance mechanism (13) comprises
- a fork-pipe (15) whose two separate inlets are connected to the liquid detergent outlet (11) and the softener outlet (12), and whose single outlet is connected to the inlet of control valve (10), and
- a flap (16) with two positions, provided in said fork-pipe (15), allowing only the liquid detergent to flow through the control valve (10) to the hydraulic pump (9) in its first position by blocking softener flow, and allowing only the softener to flow through the control valve (10) to the hydraulic pump (9) in its second position by blocking liquid detergent flow (Figure 4, Figure 5).
In an embodiment of the invention, the hydraulic pump (9) enabling dosing liquid detergent and softener, is of the geared pump type constituted by a cooperating drive gear (17) and a driven gear (18) (Figure 7).
In another embodiment of the invention, the hydraulic pump (9) comprises a water wheel (19) rotating due to the dynamic pressure of the water received from outside, and enabling the hydraulic pump (9) to operate without using electricity by transmitting its rotational motion to the drive gear (17) (Figure 8).
The control unit regulates the operation of the solenoid valve (14) or the flap (16) in the flow guidance mechanism (13) for dosing liquid detergent or softener. The solenoid valve (14) or the flap (16) directs liquid detergent to the hydraulic pump (9) in order to be dosed through the path of the first chamber (4) - the liquid detergent outlet (11) - control valve (10) in predetermined times and amounts. Likewise, the solenoid valve (14) or the flap (16) directs softener to the hydraulic pump (9) in order to be dosed through the path of the second chamber (5) - the softener outlet (12) - control valve (10) in predetermined times and amounts.
In the dosing system (1) of the invention, liquid detergent and softener are transferred to the washing environment in the tub (2) by being dosed in a precise manner. A single control valve (10) and a single hydraulic pump (9) is used for both liquid detergent and softener. Instead of electricity, the hydraulic pump (9) used for dosing, is driven by a water wheel (19) rotated by the water received from outside, decreasing the cost of the system.
Claims (6)
- A dosing system (1) suitable for use in a washing machine (20) having a tub (2) in which washing – drying processes are performed, and a drum (3) rotating in the tub (2), in which laundry items are placed, comprising a detergent drawer (6) having a first chamber (4) in which liquid detergent is stored, and a second chamber (5) in which softener is stored, a housing (7) in which the detergent drawer (6) is placed, a tub outlet (8) provided below the housing (7), a hydraulic pump (9) enabling the liquids stored in the detergent drawer (6) to be dosed and transferred into the housing (7), a control valve (10) enabling flow conduction between the detergent drawer (6) and the hydraulic pump (9), allowing liquid flow from the detergent drawer (6) to the hydraulic pump (9) when the detergent drawer (6) is placed in the housing (7), and blocking liquid flow from the detergent drawer (6) to the hydraulic pump (9) when the detergent drawer (6) is drawn out of the housing (7), characterized by - a liquid detergent outlet (11) through which liquid detergent flow from the first chamber (4) is realized in order to be dosed , a softener outlet (12) through which softener flow from the second chamber (5) is realized in order to be dosed, both provided in the detergent drawer (6), and by- a flow guidance mechanism (13) provided between the liquid detergent outlet (11), the softener outlet (12) and the inlet of control valve (10), enabling only the liquid detergent or only the softener to be sent to the same hydraulic pump (9) in order to be dosed in different times.
- A dosing system (1) according to claim 1, characterized by the flow guidance mechanism (13) comprising a solenoid valve (14) with two inlets and one outlet, with one of the inlets connected to the liquid detergent outlet (11), the other inlet connected to the softener outlet (12), and the single outlet connected to the inlet of the control valve (10).
- A dosing system (1) according to claim 1,characterized by the flow guidance mechanism (13) comprising a fork-pipe (15) whose two separate inlets are connected to the liquid detergent outlet (11) and the softener outlet (12), and whose single outlet is connected to the control valve (10) inlet, and a flap (16) with two positions provided in said fork-pipe (15), allowing only the liquid detergent to flow through the control valve (10) to the hydraulic pump (9) in its first position by blocking softener flow, and allowing only the softener to flow through the control valve (10) to the hydraulic pump (9) in its second position by blocking liquid detergent flow.
- A dosing system (1) according to any one of the preceding claims, characterized by a hydraulic pump (9) of the geared pump type constituted by a cooperating drive gear (17) and a driven gear (18) enabling dosing liquid detergent and softener.
- A dosing system (1) according to claim 4, characterized by the hydraulic pump (9) comprising a water wheel (19) rotating due to the dynamic pressure of the water received from outside, and enabling the driving gear (17) to operate without using electricity by transmitting its rotation to the driving gear (17).
- A washing machine (20) characterized by a dosing system (1) according to any one of the preceding claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2017/14950A TR201714950A2 (en) | 2017-10-04 | 2017-10-04 | A LIQUID DETERGENT AND SOFTENER DOSING SYSTEM FOR WASHING MACHINES |
| TRA2017/14950 | 2017-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019068697A1 true WO2019068697A1 (en) | 2019-04-11 |
Family
ID=63762511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/076767 WO2019068697A1 (en) | 2017-10-04 | 2018-10-02 | A liquid detergent and softener dosing system for washing machines |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR201714950A2 (en) |
| WO (1) | WO2019068697A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109082A1 (en) * | 2021-12-16 | 2023-06-22 | 合肥美的洗衣机有限公司 | Dosing device and washing apparatus |
| US11851802B2 (en) | 2021-09-14 | 2023-12-26 | Haier Us Appliance Solutions, Inc. | Combination smart dose dispenser system for a laundry treatment appliance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080235880A1 (en) * | 2007-03-31 | 2008-10-02 | Lg Electronics Inc. | Washing machine |
| WO2008138798A2 (en) | 2007-05-16 | 2008-11-20 | BSH Bosch und Siemens Hausgeräte GmbH | Automatically controlled washing machine |
| EP2048276B1 (en) | 2007-10-08 | 2010-09-01 | Miele & Cie. KG | Metering device for treatment agent for a washing machine and washing machine |
| EP2251480A1 (en) * | 2009-05-11 | 2010-11-17 | Electrolux Home Products Corporation N.V. | Laundry washing appliance |
| WO2015032658A1 (en) | 2013-09-09 | 2015-03-12 | Arcelik Anonim Sirketi | A cleaning agent dispenser comprising an upper casing |
| WO2015032656A1 (en) | 2013-09-03 | 2015-03-12 | Arcelik Anonim Sirketi | A washer comprising an automatic dosing unit |
| US20150252513A1 (en) * | 2014-03-04 | 2015-09-10 | Lg Electronics Inc. | Washing machine |
| EP2428607B1 (en) | 2008-10-07 | 2015-12-02 | BSH Hausgeräte GmbH | Water-conducting household appliance with an automatic detergent dosing system |
-
2017
- 2017-10-04 TR TR2017/14950A patent/TR201714950A2/en unknown
-
2018
- 2018-10-02 WO PCT/EP2018/076767 patent/WO2019068697A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080235880A1 (en) * | 2007-03-31 | 2008-10-02 | Lg Electronics Inc. | Washing machine |
| WO2008138798A2 (en) | 2007-05-16 | 2008-11-20 | BSH Bosch und Siemens Hausgeräte GmbH | Automatically controlled washing machine |
| EP2048276B1 (en) | 2007-10-08 | 2010-09-01 | Miele & Cie. KG | Metering device for treatment agent for a washing machine and washing machine |
| EP2428607B1 (en) | 2008-10-07 | 2015-12-02 | BSH Hausgeräte GmbH | Water-conducting household appliance with an automatic detergent dosing system |
| EP2251480A1 (en) * | 2009-05-11 | 2010-11-17 | Electrolux Home Products Corporation N.V. | Laundry washing appliance |
| WO2015032656A1 (en) | 2013-09-03 | 2015-03-12 | Arcelik Anonim Sirketi | A washer comprising an automatic dosing unit |
| WO2015032658A1 (en) | 2013-09-09 | 2015-03-12 | Arcelik Anonim Sirketi | A cleaning agent dispenser comprising an upper casing |
| US20150252513A1 (en) * | 2014-03-04 | 2015-09-10 | Lg Electronics Inc. | Washing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11851802B2 (en) | 2021-09-14 | 2023-12-26 | Haier Us Appliance Solutions, Inc. | Combination smart dose dispenser system for a laundry treatment appliance |
| WO2023109082A1 (en) * | 2021-12-16 | 2023-06-22 | 合肥美的洗衣机有限公司 | Dosing device and washing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| TR201714950A2 (en) | 2019-04-22 |
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