EP2666900B1 - Detergent feeding device and washing machine having the same - Google Patents
Detergent feeding device and washing machine having the same Download PDFInfo
- Publication number
- EP2666900B1 EP2666900B1 EP13168999.4A EP13168999A EP2666900B1 EP 2666900 B1 EP2666900 B1 EP 2666900B1 EP 13168999 A EP13168999 A EP 13168999A EP 2666900 B1 EP2666900 B1 EP 2666900B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergent
- case
- housing
- feeding device
- liquid
- 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.)
- Active
Links
- 239000003599 detergent Substances 0.000 title claims description 291
- 238000005406 washing Methods 0.000 title claims description 22
- 239000007788 liquid Substances 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000004891 communication Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010412 laundry washing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- 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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
-
- 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
- D06F39/12—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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/42—Detergent or additive supply
Definitions
- Embodiments of the present disclosure relate to a detergent feeding device to feed liquid detergent and a washing machine having the same.
- a washing machine includes a tub to retain water and a spin basket rotatably installed in the tub. The laundry contained in the spin basket is washed in the tub by rotation of the spin basket.
- the washing machine is provided with a detergent feeding device to feed detergent, to be used for washing, along with water to the tub .
- a detergent feeding device to feed detergent, to be used for washing, along with water to the tub .
- some washing machines have employed a detergent feeding device adapted to liquid detergent which is more soluble in water than powder detergent.
- DE 2 251 480 A1 discloses a laundry washing appliance with a drawer and a drawer seat.
- the drawer is movable with respect to the drawer seat.
- suction pipes arranged inside the drawer are in communicating contact with valve bodies.
- a corresponding detergent introduction module is arranged at the back of the drawer seat.
- DE 10 2009 030 289 A1 discloses a washing machine with a detergent feeding device comprising a detergent housing and a detergent case.
- a handle is said to be connected to the detergent case.
- Corresponding detergent introduction module with a pump and corresponding further means is directly arranged at the back side of the corresponding detergent housing.
- the detergent introduction module may be detachably installed on the outer surface of the detergent case.
- the detergent pump may include a first gear formed in an annular shape and provided with teeth on an inner circumferential surface thereof, a second gear formed to have an outer diameter smaller than an inner diameter of the first gear and provided with teeth on an outer circumferential surface thereof to engage with the teeth provided on the inner circumferential surface of the first gear, and a detergent pump motor to generate rotary power to rotate the second gear.
- the detergent introduction module may include a detergent introduction module housing provided with a channel connected to the detergent case to guide discharge of the liquid detergent, wherein the detergent introduction module housing may include a chamber allowing the first gear and the second gear to be rotatably installed therein, an inflow guide channel to communicate with the detergent case to guide the liquid detergent to the chamber, a discharge guide channel to guide discharge of the liquid detergent to an upper side in the chamber, and a discharge guide pipe connected to an upper end of the discharge guide channel to discharge the liquid detergent downward.
- the detergent case may be installed in the detergent housing to be movable forward and backward, and the detergent introduction module may be installed at a rear surface of the detergent case.
- the washing machine may further include a first connector provided at a rear side of the detergent introduction module, and a second connector provided at an inner rear side of the detergent housing to be selectively connected to the first connector depending on a position of the detergent case.
- the detergent case may include a main detergent storage part to store main detergent in a liquid state and a sub-detergent storage part to store sub-detergent in liquid state
- the at least one detergent pump may include a main detergent pump to pump out the main detergent stored in the main detergent storage part, and a sub-detergent pump to pump out the sub-detergent stored in the sub-detergent storage.
- a detergent feeding device includes a detergent housing, a detergent case installed in the detergent housing to store liquid detergent, and a detergent introduction module installed on an outer surface of the detergent case to communicate with an inside of the detergent case to introduce the liquid detergent stored in the detergent case into the detergent housing.
- a washing machine includes a housing 10 forming an external appearance of the washing machine, a tub 20 disposed inside the housing 10, a spin basket 30 rotatably installed in the tub 20, and a drive motor 40 to rotate the spin basket 30.
- a control panel (not shown) provided with a manipulation button 810, which will be described later, allowing a user to control operation of the washing machine.
- an introduction port 10a is provided at the center of the front face of the housing 10 to allow introduction of laundry into the spin basket 30, and is opened and closed by a door 11 rotatably installed at the front face of the housing 10.
- the tub 20 is installed inside the housing 10 using a suspension member, and water to be used in washing the laundry is stored therein.
- the spin basket 30 includes a body part 31 having a cylindrical shape, a front plate 32 disposed at the front of the body part 31, and a rear plate 33 disposed at the rear of the body part 31.
- a plurality of through holes 31a is provided in the body part 31 of the spin basket 30 to allow flow of wash water therethrough, and a plurality of lifters 31b to lift the laundry upward is provided on the inner circumferential surface of the spin basket 30 and arranged spaced apart from each other in a circumferential direction.
- the front plate 32 is provided with an opening 32a through which the laundry is inserted or removed.
- Installed at the center of the rear plate 33 is a shaft flange 34 to which a rotating shaft 43 of the drive motor 40, which will be described later, is connected.
- the drive motor 40 includes a stator 41 fixed to the rear surface of the tub 20, a rotator 42 to interact with the stator 41 to rotate, and a rotating shaft 43 having one end fixed to the center of the rotator 42 and the other end fixed to the center of the rear plate 33 of the spin basket 30 through the tub 20.
- a bearing housing 21 to support the rotating shaft 43 such that the rotating shaft 43 is rotatable.
- the bearing housing 21 is manufactured using an insert injection molding process.
- bearings 22 Installed inside the bearing housing 21 are bearings 22 to support the rotating shaft 43 such that the rotating shaft 43 is rotatable.
- a water supply unit 50 to supply water to the tub 20 and a detergent feeding device 70 connected to the water supply unit 50 to supply water delivered through the water supply unit 50 to the tub 20 along with detergent.
- a drain unit 60 At the lower portion of the tub 20 is disposed a drain unit 60 to discharge used wash water to the outside of the housing 10.
- the water supply unit 50 includes water supply pipes 51 to connect an external water source (not shown) and the detergent feeding device 70 to each other, and a water supply valve 52 disposed in the water supply pipes 51 to open and close the water supply pipe 51.
- the drain unit 60 includes a drain pipe 61 to guide water in the tub 20 to be discharged to the outside of the housing 10, and a drain pump 62 disposed at the drain pipe 61 to discharge water through the drain pipe 61.
- the detergent feeding device 70 is connected to the tub 20 via a connection pipe 53 connected to the lower portion of the detergent feeding device 70. Accordingly, water supplied through the water supply pipes 51 is supplied to the tub 20 through the connection pipe 53 via the detergent feeding device 70.
- the detergent feeding device 70 includes a detergent case 710 to retain detergent, a detergent housing 700 to accommodate the detergent case 710.
- a plurality of water supply ports 702a is provided at the upper portion of the rear end of the detergent housing 700 to be connected with the water supply pipes 51, and a connection port 700b is provided at the lower portion of the detergent housing 700 to be connected with the connection pipe 53.
- the detergent housing 700 is mounted and fixed to the housing 10 of the washing machine, and includes a housing cover 701 to cover the top of the detergent housing 700. Also, installed at the inner upper portion of the detergent housing 700 is a first water supply guide 702 disposed at the upper portion of the detergent case 710 and provided at the rear end thereof with the water supply ports 702a to distribute water supplied through the water supply pipes 51 to a powder detergent storage part 710c, which will be described later, or a manual detergent supply unit 710d, which will be described later. Installed at the inner rear side of the detergent housing 700 is a second water supply guide 703 connected to the first water supply guide 702 to distribute water supplied through the water supply pipes 51 to the left and right sides in the detergent housing 700.
- the detergent case 710 is movably installed in the detergent housing 700 though the detergent case inserting hole 700a provided at the front of the detergent housing 700. Accordingly, a user is allowed to introduce detergent into the detergent case 710 by retracting the detergent case 710 from the detergent housing 700, or to remove the detergent case 710 from the detergent housing 700 to clean the detergent case 710.
- the detergent case 710 is provided with a plurality of detergent storage parts 710a, 710b, 710c and 710d to store detergent.
- the detergent storage parts 710a, 710b, 710c and 710d include liquid detergent storage parts 710a and 710b to store liquid detergent, a powder detergent storage 710c to store powder detergent, a manual detergent supply unit 710d allowing the user to supply a rinse additive or bleach.
- the liquid detergent storage parts 710a and 710b are divided into a main detergent storage part 710a to accommodate main detergent in a liquid state and a sub-detergent storage part 710b to store sub-detergent in a liquid state such as the rinse additive or bleach.
- a detergent case cover 711 is mounted to the upper portion of the detergent case 710 to prevent overflow of detergent in the detergent case 710. Also, the detergent case cover 711 is provided with a plurality of detergent introduction ports 711a, 711b, 711c and 711d to introduce detergent into the respective detergent storage parts 710a, 710b, 710c and 710d. Among the detergent introduction ports 711a, 711b, 711c and 711d, the detergent introduction ports for the main detergent storage part 710a and sub-detergent storage part 710b retaining a large amount of liquid detergent are provided with storage covers 711e and 711f to prevent overflow of the liquid detergent.
- the detergent feeding device 70 also includes a detergent introduction module 730 controlled by a control unit 800 to introduce liquid detergent stored in the detergent case 710 into the detergent housing 700 to thereby allow the liquid detergent to be mixed with water in the detergent housing 700 and supplied to the tub 20 along with water.
- a detergent introduction module 730 controlled by a control unit 800 to introduce liquid detergent stored in the detergent case 710 into the detergent housing 700 to thereby allow the liquid detergent to be mixed with water in the detergent housing 700 and supplied to the tub 20 along with water.
- the detergent introduction module 730 is installed to communicate with the detergent case 710.
- the detergent introduction module 730 is arranged at the outer surface of the detergent case 710 to avoid arranging electrical connection structures in the detergent case 710.
- the detergent introduction module 730 is installed at the rear surface of the detergent case 710.
- the detergent introduction module 730 includes detergent pumps 731M and 731S to pump liquid detergent in the detergent case 710 to discharge the liquid detergent to the detergent housing 700, and a detergent introduction module housing 732 provided with a channel to communicate with the detergent case 710 and guide discharge of the liquid detergent.
- the detergent introduction module 730 also includes a detergent introduction module cover 734 to cover the top of the detergent introduction module housing 732, and a bottom plate 735 disposed at the bottom surface of the detergent introduction module housing 732 to define a chamber, which will be described later.
- the detergent pumps 731M and 731S includes a main detergent pump 731M to pump main detergent stored in the main detergent storage 710a and a sub-detergent pump 731S to pump sub-detergent stored in the sub-detergent storage 710b, and is installed in the detergent introduction module housing 732.
- a pair of communication holes 710e and 710f respectively connected to the main detergent storage part 710a and the sub-detergent storage part 710b is provided on the rear surface of the detergent case 710.
- the detergent introduction module housing 732 is provided with inlets 732a at positions corresponding to the communication holes 710e and 710f to allow liquid detergent to flow into the detergent introduction module housing 732. Disposed between communication holes 710e and 710f and the inlets 732a are sealing members 736.
- Each of the detergent pumps 731M and 731 S includes a first gear 731a formed in an annular shape and provided with teeth on the inner circumferential surface thereof, a second gear 731b having an outer diameter smaller than the inner diameter of the first gear 731a and teeth provided on the outer circumferential surface thereof to engage with the teeth formed on the inner circumferential surface of the first gear 731a, and a detergent pump motor 731c to generate rotary power to rotate the second gear 731b.
- the detergent introduction module housing 732 includes a chamber 732b provided at the lower portion of the detergent introduction module housing 732 to allow the first gear 731a and the second gear 731b to be rotatably installed therein, an inflow guide channel 732c connected to the inlet 732a to communicate with the detergent case 710 and adapted to guide liquid detergent to the chamber 732b, a discharge guide channel 732d to guide the liquid detergent to a higher location in the chamber 732b than that of the liquid detergent stored in the detergent case 710, a discharge guide pipe 733 connected to the upper end of the discharge guide channel 732d to discharge the liquid detergent downward.
- the detergent introduction module 730 is provided with a pair of chambers 732b, a pair of inflow guide channels 732c, a pair of discharge guide channels 732d and a pair of discharge guide pipes 733.
- the detergent case 710 is installed in the detergent housing 700 such that the detergent case 710 is movable back and forth, and therefore a first connector 737 is provided at the rear side of the detergent introduction module 730, and a second connector 704 is provided at the inner rear side of the detergent housing 700 to be selectively connected to the first connector 737 depending on the position of the detergent case 710. Accordingly, when the detergent case 710 is accommodated in the detergent housing 700, the first connector 737 is connected with the second connector 704 so that electricity may be applied to the detergent introduction module 730. When the detergent case 710 is protruded from the detergent housing 700, the first connector 737 is disconnected from the second connector 704, and thus electricity is not allowed to be applied to the detergent introduction module 730.
- Such washing machine includes, as shown in FIG. 9 , a control unit 800 to control operations of the respective constituents of the washing machine such as the detergent feeding device 70 and the drive motor 40, and a manipulation button 810 allowing the user to select functions of the washing machine.
- a control unit 800 to control operations of the respective constituents of the washing machine such as the detergent feeding device 70 and the drive motor 40, and a manipulation button 810 allowing the user to select functions of the washing machine.
- the drive motor 40 and the detergent introduction module 730 are controlled through the control unit 800.
- control unit 800 applies electricity to the drive motor 40 and the detergent introduction module 730 according to cycles such as washing, rinsing and draining that are preset in the control unit 800.
- the detergent pumps 731M and 731S are driven, and main detergent or sub-detergent in liquid state stored in the main detergent storage part 710a or sub-detergent storage part 710b of the detergent case 710 passes sequentially through the communication holes 710e and 710f, inlets 732a and inflow guide channel 732c and flows into the chamber 732b, and is then discharged into the detergent housing 700 via the discharge guide channel 732d and the discharge guide pipe 733.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Description
- Embodiments of the present disclosure relate to a detergent feeding device to feed liquid detergent and a washing machine having the same.
- A washing machine includes a tub to retain water and a spin basket rotatably installed in the tub. The laundry contained in the spin basket is washed in the tub by rotation of the spin basket.
- The washing machine is provided with a detergent feeding device to feed detergent, to be used for washing, along with water to the tub . Recently, some washing machines have employed a detergent feeding device adapted to liquid detergent which is more soluble in water than powder detergent.
-
DE 2 251 480 A1 discloses a laundry washing appliance with a drawer and a drawer seat. The drawer is movable with respect to the drawer seat. In its inserted position, suction pipes arranged inside the drawer are in communicating contact with valve bodies. A corresponding detergent introduction module is arranged at the back of the drawer seat. -
DE 10 2009 030 289 A1 discloses a washing machine with a detergent feeding device comprising a detergent housing and a detergent case. A handle is said to be connected to the detergent case. Corresponding detergent introduction module with a pump and corresponding further means is directly arranged at the back side of the corresponding detergent housing. -
DE 10 2007 023 065 A1 discloses a washing machine with a detergent feeding device which comprises a drawer or detergent case arranged within a housing. No particular detergent introduction module seems to be disclosed by this reference. - It is an object of the present disclosure to provide a detergent feeding device which eliminates an electrical component from a detergent case.
- Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
- The object is solved by the features of claim 1.
- Advantageous embodiments are disclosed by the subclaims.
- The detergent introduction module may be detachably installed on the outer surface of the detergent case.
- The detergent pump may include a first gear formed in an annular shape and provided with teeth on an inner circumferential surface thereof, a second gear formed to have an outer diameter smaller than an inner diameter of the first gear and provided with teeth on an outer circumferential surface thereof to engage with the teeth provided on the inner circumferential surface of the first gear, and a detergent pump motor to generate rotary power to rotate the second gear.
- The detergent introduction module may include a detergent introduction module housing provided with a channel connected to the detergent case to guide discharge of the liquid detergent, wherein the detergent introduction module housing may include a chamber allowing the first gear and the second gear to be rotatably installed therein, an inflow guide channel to communicate with the detergent case to guide the liquid detergent to the chamber, a discharge guide channel to guide discharge of the liquid detergent to an upper side in the chamber, and a discharge guide pipe connected to an upper end of the discharge guide channel to discharge the liquid detergent downward.
- The detergent case may be installed in the detergent housing to be movable forward and backward, and the detergent introduction module may be installed at a rear surface of the detergent case.
- The washing machine may further include a first connector provided at a rear side of the detergent introduction module, and a second connector provided at an inner rear side of the detergent housing to be selectively connected to the first connector depending on a position of the detergent case.
- The detergent case may include a main detergent storage part to store main detergent in a liquid state and a sub-detergent storage part to store sub-detergent in liquid state, and the at least one detergent pump may include a main detergent pump to pump out the main detergent stored in the main detergent storage part, and a sub-detergent pump to pump out the sub-detergent stored in the sub-detergent storage.
- In accordance with one aspect, a detergent feeding device includes a detergent housing, a detergent case installed in the detergent housing to store liquid detergent, and a detergent introduction module installed on an outer surface of the detergent case to communicate with an inside of the detergent case to introduce the liquid detergent stored in the detergent case into the detergent housing.
- These and/or other aspects will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
-
FIG. 1 is a cross-sectional view illustrating a washing machine having a detergent feeding device according to an exemplary embodiment; -
FIG. 2 is a perspective view illustrating the detergent feeding device according to the embodiment; -
FIG. 3 is an exploded perspective view illustrating a detergent housing of the detergent feeding device ofFIG. 2 ; -
FIG. 4 is an exploded perspective view illustrating a detergent case of the detergent feeding device ofFIG. 2 ; -
FIG. 5 is a perspective view illustrating a detergent case and a detergent introduction module applied to the detergent feeding device ofFIG. 2 ; -
FIG. 6 is an exploded perspective view illustrating the detergent introduction module applied to the detergent feeding device ofFIG. 2 ; -
FIG. 7 is a cross-sectional top view illustrating the detergent introduction module applied to the detergent feeding device ofFIG. 2 ; -
FIG. 8 is a cross-sectional side view illustrating the detergent introduction module applied to the detergent feeding device ofFIG. 2 ; and -
FIG. 9 is a control block diagram illustrating the detergent feeding device ofFIG. 2 . - Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
- As shown in
FIG. 1 , a washing machine includes ahousing 10 forming an external appearance of the washing machine, atub 20 disposed inside thehousing 10, aspin basket 30 rotatably installed in thetub 20, and adrive motor 40 to rotate thespin basket 30. - At the upper portion of the front of the
housing 10 is disposed a control panel (not shown) provided with amanipulation button 810, which will be described later, allowing a user to control operation of the washing machine. A circuit board (not shown) forming acontrol unit 800, which will be described later, is disposed inside the control panel. Also, anintroduction port 10a is provided at the center of the front face of thehousing 10 to allow introduction of laundry into thespin basket 30, and is opened and closed by adoor 11 rotatably installed at the front face of thehousing 10. - The
tub 20 is installed inside thehousing 10 using a suspension member, and water to be used in washing the laundry is stored therein. - The
spin basket 30 includes abody part 31 having a cylindrical shape, afront plate 32 disposed at the front of thebody part 31, and arear plate 33 disposed at the rear of thebody part 31. A plurality of throughholes 31a is provided in thebody part 31 of thespin basket 30 to allow flow of wash water therethrough, and a plurality oflifters 31b to lift the laundry upward is provided on the inner circumferential surface of thespin basket 30 and arranged spaced apart from each other in a circumferential direction. Thefront plate 32 is provided with an opening 32a through which the laundry is inserted or removed. Installed at the center of therear plate 33 is ashaft flange 34 to which a rotatingshaft 43 of thedrive motor 40, which will be described later, is connected. - The
drive motor 40 includes astator 41 fixed to the rear surface of thetub 20, arotator 42 to interact with thestator 41 to rotate, and a rotatingshaft 43 having one end fixed to the center of therotator 42 and the other end fixed to the center of therear plate 33 of thespin basket 30 through thetub 20. - Provided at the rear wall of the
tub 20 is a bearinghousing 21 to support the rotatingshaft 43 such that the rotatingshaft 43 is rotatable. The bearinghousing 21 is manufactured using an insert injection molding process. Installed inside the bearinghousing 21 arebearings 22 to support the rotatingshaft 43 such that the rotatingshaft 43 is rotatable. - At the upper portion of the
tub 20 are disposed awater supply unit 50 to supply water to thetub 20 and adetergent feeding device 70 connected to thewater supply unit 50 to supply water delivered through thewater supply unit 50 to thetub 20 along with detergent. At the lower portion of thetub 20 is disposed adrain unit 60 to discharge used wash water to the outside of thehousing 10. - The
water supply unit 50 includeswater supply pipes 51 to connect an external water source (not shown) and thedetergent feeding device 70 to each other, and awater supply valve 52 disposed in thewater supply pipes 51 to open and close thewater supply pipe 51. Thedrain unit 60 includes adrain pipe 61 to guide water in thetub 20 to be discharged to the outside of thehousing 10, and adrain pump 62 disposed at thedrain pipe 61 to discharge water through thedrain pipe 61. - The
detergent feeding device 70 is connected to thetub 20 via aconnection pipe 53 connected to the lower portion of thedetergent feeding device 70. Accordingly, water supplied through thewater supply pipes 51 is supplied to thetub 20 through theconnection pipe 53 via thedetergent feeding device 70. - As shown in
FIGS. 2 to 4 , thedetergent feeding device 70 includes adetergent case 710 to retain detergent, adetergent housing 700 to accommodate thedetergent case 710. A plurality ofwater supply ports 702a is provided at the upper portion of the rear end of thedetergent housing 700 to be connected with thewater supply pipes 51, and aconnection port 700b is provided at the lower portion of thedetergent housing 700 to be connected with theconnection pipe 53. - As shown in
FIG. 3 , thedetergent housing 700 is mounted and fixed to thehousing 10 of the washing machine, and includes ahousing cover 701 to cover the top of thedetergent housing 700. Also, installed at the inner upper portion of thedetergent housing 700 is a firstwater supply guide 702 disposed at the upper portion of thedetergent case 710 and provided at the rear end thereof with thewater supply ports 702a to distribute water supplied through thewater supply pipes 51 to a powderdetergent storage part 710c, which will be described later, or a manualdetergent supply unit 710d, which will be described later. Installed at the inner rear side of thedetergent housing 700 is a secondwater supply guide 703 connected to the firstwater supply guide 702 to distribute water supplied through thewater supply pipes 51 to the left and right sides in thedetergent housing 700. - The
detergent case 710 is movably installed in thedetergent housing 700 though the detergentcase inserting hole 700a provided at the front of thedetergent housing 700. Accordingly, a user is allowed to introduce detergent into thedetergent case 710 by retracting thedetergent case 710 from thedetergent housing 700, or to remove thedetergent case 710 from thedetergent housing 700 to clean thedetergent case 710. - The
detergent case 710 is provided with a plurality ofdetergent storage parts detergent storage parts detergent storage parts powder detergent storage 710c to store powder detergent, a manualdetergent supply unit 710d allowing the user to supply a rinse additive or bleach. Also, the liquiddetergent storage parts detergent storage part 710a to accommodate main detergent in a liquid state and asub-detergent storage part 710b to store sub-detergent in a liquid state such as the rinse additive or bleach. - A
detergent case cover 711 is mounted to the upper portion of thedetergent case 710 to prevent overflow of detergent in thedetergent case 710. Also, thedetergent case cover 711 is provided with a plurality ofdetergent introduction ports detergent storage parts detergent introduction ports detergent storage part 710a andsub-detergent storage part 710b retaining a large amount of liquid detergent are provided with storage covers 711e and 711f to prevent overflow of the liquid detergent. - The
detergent feeding device 70 also includes adetergent introduction module 730 controlled by acontrol unit 800 to introduce liquid detergent stored in thedetergent case 710 into thedetergent housing 700 to thereby allow the liquid detergent to be mixed with water in thedetergent housing 700 and supplied to thetub 20 along with water. - As shown in
FIG. 5 , thedetergent introduction module 730 is installed to communicate with thedetergent case 710. Thedetergent introduction module 730 is arranged at the outer surface of thedetergent case 710 to avoid arranging electrical connection structures in thedetergent case 710. In the illustrated embodiment, thedetergent introduction module 730 is installed at the rear surface of thedetergent case 710. - As shown in
FIG. 6 , thedetergent introduction module 730 includes detergent pumps 731M and 731S to pump liquid detergent in thedetergent case 710 to discharge the liquid detergent to thedetergent housing 700, and a detergentintroduction module housing 732 provided with a channel to communicate with thedetergent case 710 and guide discharge of the liquid detergent. Thedetergent introduction module 730 also includes a detergentintroduction module cover 734 to cover the top of the detergentintroduction module housing 732, and abottom plate 735 disposed at the bottom surface of the detergentintroduction module housing 732 to define a chamber, which will be described later. In the illustrated embodiment, the detergent pumps 731M and 731S includes amain detergent pump 731M to pump main detergent stored in themain detergent storage 710a and asub-detergent pump 731S to pump sub-detergent stored in thesub-detergent storage 710b, and is installed in the detergentintroduction module housing 732. - To allow liquid detergent to be transferred from the
detergent case 710 to thedetergent introduction module 730, a pair ofcommunication holes detergent storage part 710a and thesub-detergent storage part 710b is provided on the rear surface of thedetergent case 710. The detergentintroduction module housing 732 is provided withinlets 732a at positions corresponding to thecommunication holes introduction module housing 732. Disposed betweencommunication holes inlets 732a are sealingmembers 736. - Each of the detergent pumps 731M and 731 S includes a
first gear 731a formed in an annular shape and provided with teeth on the inner circumferential surface thereof, asecond gear 731b having an outer diameter smaller than the inner diameter of thefirst gear 731a and teeth provided on the outer circumferential surface thereof to engage with the teeth formed on the inner circumferential surface of thefirst gear 731a, and adetergent pump motor 731c to generate rotary power to rotate thesecond gear 731b. - As shown in
FIGS. 7 and8 , the detergentintroduction module housing 732 includes achamber 732b provided at the lower portion of the detergentintroduction module housing 732 to allow thefirst gear 731a and thesecond gear 731b to be rotatably installed therein, aninflow guide channel 732c connected to theinlet 732a to communicate with thedetergent case 710 and adapted to guide liquid detergent to thechamber 732b, adischarge guide channel 732d to guide the liquid detergent to a higher location in thechamber 732b than that of the liquid detergent stored in thedetergent case 710, adischarge guide pipe 733 connected to the upper end of thedischarge guide channel 732d to discharge the liquid detergent downward. In the illustrated embodiment, as a pair of detergent pumps is provided, thedetergent introduction module 730 is provided with a pair ofchambers 732b, a pair ofinflow guide channels 732c, a pair ofdischarge guide channels 732d and a pair ofdischarge guide pipes 733. - In the illustrated embodiment, the
detergent case 710 is installed in thedetergent housing 700 such that thedetergent case 710 is movable back and forth, and therefore afirst connector 737 is provided at the rear side of thedetergent introduction module 730, and asecond connector 704 is provided at the inner rear side of thedetergent housing 700 to be selectively connected to thefirst connector 737 depending on the position of thedetergent case 710. Accordingly, when thedetergent case 710 is accommodated in thedetergent housing 700, thefirst connector 737 is connected with thesecond connector 704 so that electricity may be applied to thedetergent introduction module 730. When thedetergent case 710 is protruded from thedetergent housing 700, thefirst connector 737 is disconnected from thesecond connector 704, and thus electricity is not allowed to be applied to thedetergent introduction module 730. - Such washing machine includes, as shown in
FIG. 9 , acontrol unit 800 to control operations of the respective constituents of the washing machine such as thedetergent feeding device 70 and thedrive motor 40, and amanipulation button 810 allowing the user to select functions of the washing machine. Thereby, thedrive motor 40 and thedetergent introduction module 730 are controlled through thecontrol unit 800. - Accordingly, when an operation of the washing machine is selected by the user through the
manipulation button 810, thecontrol unit 800 applies electricity to thedrive motor 40 and thedetergent introduction module 730 according to cycles such as washing, rinsing and draining that are preset in thecontrol unit 800. - When electricity is applied to the
detergent introduction module 730, the detergent pumps 731M and 731S are driven, and main detergent or sub-detergent in liquid state stored in the maindetergent storage part 710a orsub-detergent storage part 710b of thedetergent case 710 passes sequentially through thecommunication holes inlets 732a andinflow guide channel 732c and flows into thechamber 732b, and is then discharged into thedetergent housing 700 via thedischarge guide channel 732d and thedischarge guide pipe 733. - As is apparent from the above description, with an electrically operated detergent introduction module disposed on the outer surface of a detergent case, a connection structure for operation of the detergent introduction module are positioned at the outer side of the detergent case, and therefore a simple configuration of the inside of the detergent case may be ensured.
- Although a few embodiments have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the scope of the invention which is defined in the claims.
Claims (9)
- A detergent feeding device (70) comprising:a detergent housing (700);a detergent case (710) movably installed in the detergent housing (700) to be movable forward and backward and to store liquid detergent; anda detergent introduction module (730), said detergent introduction module (30) having at least one detergent pump, which is configured to pump out the liquid detergent in the detergent case to discharge the liquid detergent into the detergent housing,characterized in that said detergent introduction module (30) is installed on an outer surface of the detergent case (710) to move with the detergent case and to communicate with an inside of the detergent case (710) to introduce the liquid detergent stored in the detergent case (710) into the detergent housing (700).
- The detergent feeding device according to claim 1, wherein the detergent introduction module (730) is detachably installed on the outer surface of the detergent case (710).
- The detergent feeding device according to claim 1, wherein the detergent pump (731M, S) comprises a first gear (731a) formed in an annular shape and provided with teeth on an inner circumferential surface thereof, a second gear (731b) formed to have an outer diameter smaller than an inner diameter of the first gear (731a) and provided with teeth on an outer circumferential surface thereof to engage with the teeth provided on the inner circumferential surface of the first gear, and a detergent pump motor (731c) to generate rotary power to rotate the second gear (731b).
- The detergent feeding device according to claim 3, wherein the detergent introduction module (730) comprises a detergent introduction module housing (732) provided with a channel connected to the detergent case to guide discharge of the liquid detergent,
wherein the detergent introduction module (730) housing comprises a chamber (732b) allowing the first gear (731a) and the second gear (731b) to be rotatably installed therein, an inflow guide channel (732c) to communicate with the detergent case (710) to guide the liquid detergent to the chamber (732b), a discharge guide channel (732d) to guide discharge of the liquid detergent to an upper side in the chamber, and a discharge guide pipe (733) connected to an upper end of the discharge guide channel to discharge the liquid detergent downward. - The detergent feeding device according to claim 1, wherein:the detergent case (710) is installed in the detergent housing (700) to be movable forward and backward; andthe detergent introduction module (730) is installed at a rear surface of the detergent case.
- The detergent feeding device according to claim 5, further comprising a first connector (737) provided at a rear side of the detergent introduction module (730), and a second connector (704) provided at an inner rear side of the detergent housing (700) to be selectively connected to the first connector depending on a position of the detergent case.
- The detergent feeding device according to claim 1, wherein:the detergent case (710) comprises a main detergent storage part (710a) to store main detergent in a liquid state and a sub-detergent storage part (710b) to store sub-detergent in a liquid state; andthe at least one detergent pump (731M, S) comprises a main detergent pump (731M) to pump the main detergent stored in the main detergent storage part, and a sub-detergent pump (731S) to pump the sub-detergent stored in the sub-detergent storage.
- A washing machine comprising:a body (10);a tub (20) disposed within the body (10) to retain water;a spin basket (30) rotatably installed in the tub (20); and thedetergent feeding device (70) according to one of the previous claims to supply detergent and water to the tub; anda control unit (800) to control the detergent feeding device (70),wherein said detergent housing is installed in the body, and wherein liquid detergent stored in the detergent case (710) is introduced into the detergent housing (700) according to a command transferred from the control unit (800).
- A washing machine comprising:a body (10);a tub (20) disposed within the body (10) to retain water;a spin basket (30) rotatably installed in the tub (20);a detergent feeding device (70) according to one of the claims 1 to 8 to supply detergent and water to the tub; anda control unit (800) to control the detergent feeding device that allows for a user to set how much liquid detergent is supplied to tub.
Applications Claiming Priority (1)
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KR1020120055359A KR20130131653A (en) | 2012-05-24 | 2012-05-24 | Detergent feeding device and washing machine having the same |
Publications (2)
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EP2666900A1 EP2666900A1 (en) | 2013-11-27 |
EP2666900B1 true EP2666900B1 (en) | 2019-12-11 |
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EP13168999.4A Active EP2666900B1 (en) | 2012-05-24 | 2013-05-23 | Detergent feeding device and washing machine having the same |
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US (1) | US20130312463A1 (en) |
EP (1) | EP2666900B1 (en) |
KR (1) | KR20130131653A (en) |
CN (1) | CN103422328B (en) |
AU (1) | AU2013264545B2 (en) |
BR (1) | BR112014028535B1 (en) |
CA (1) | CA2874018C (en) |
IN (1) | IN2014DN09925A (en) |
MX (1) | MX356966B (en) |
RU (1) | RU2597534C2 (en) |
WO (1) | WO2013176479A1 (en) |
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KR102205280B1 (en) * | 2014-03-04 | 2021-01-20 | 엘지전자 주식회사 | Washing machine |
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CN110387688A (en) * | 2018-04-20 | 2019-10-29 | 青岛海尔滚筒洗衣机有限公司 | Laundry treatment agents for clothes treatment device launch component and clothes treatment device |
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- 2013-05-22 RU RU2014147012/12A patent/RU2597534C2/en active
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- 2013-05-22 MX MX2014014202A patent/MX356966B/en active IP Right Grant
- 2013-05-22 WO PCT/KR2013/004475 patent/WO2013176479A1/en active Application Filing
- 2013-05-22 BR BR112014028535-7A patent/BR112014028535B1/en not_active IP Right Cessation
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US20130312463A1 (en) | 2013-11-28 |
CN103422328A (en) | 2013-12-04 |
RU2597534C2 (en) | 2016-09-10 |
BR112014028535B1 (en) | 2021-11-23 |
IN2014DN09925A (en) | 2015-08-14 |
EP2666900A1 (en) | 2013-11-27 |
AU2013264545A1 (en) | 2014-12-04 |
MX2014014202A (en) | 2015-02-12 |
MX356966B (en) | 2018-06-21 |
RU2014147012A (en) | 2016-06-20 |
CA2874018A1 (en) | 2013-11-28 |
CA2874018C (en) | 2018-02-27 |
AU2013264545B2 (en) | 2016-05-05 |
WO2013176479A1 (en) | 2013-11-28 |
CN103422328B (en) | 2017-03-29 |
BR112014028535A2 (en) | 2017-06-27 |
KR20130131653A (en) | 2013-12-04 |
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