US20050274156A1 - Washing machine having detergent supply device - Google Patents

Washing machine having detergent supply device Download PDF

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Publication number
US20050274156A1
US20050274156A1 US11/128,235 US12823505A US2005274156A1 US 20050274156 A1 US20050274156 A1 US 20050274156A1 US 12823505 A US12823505 A US 12823505A US 2005274156 A1 US2005274156 A1 US 2005274156A1
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US
United States
Prior art keywords
detergent
water supply
water
chambers
wash water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/128,235
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English (en)
Inventor
Yoon Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YANG, YOON SEOK
Publication of US20050274156A1 publication Critical patent/US20050274156A1/en
Abandoned legal-status Critical Current

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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
    • D06F39/028—Arrangements for selectively supplying water to detergent compartments
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates to a washing machine, and, more particularly, to a washing machine having a detergent supply device for mixing detergent, filled in a detergent container, with wash water, and supplying the mixed detergent and wash water into a washing tub.
  • washing machines are apparatuses for washing laundry using frictional force caused by simultaneously agitating the laundry, detergent and wash water, contained in a washing tub, upon receiving driving power of a motor.
  • the washing machines employ a detergent supply device to supply the detergent into a water tub in a mixed state with the wash water during a water supply cycle.
  • such a detergent supply device is mounted in an upper front side of a body, and includes a box-shaped housing having an open front surface, and a separable detergent container including a drawer to be pushed into or pulled out of the housing through the open front surface.
  • a rear upper portion of the housing includes inlets for use in the connection of water supply pipes. Through the water supply pipes, the wash water is supplied into the detergent container located in the housing.
  • a bottom rear portion of the housing includes an outlet for use in the connection of a connection pipe. The wash waterpasses through the detergent container located in the housing, and is supplied into the water tub of the washing machine through the connection pipe.
  • the detergent container is divided into a plurality of detergent receiving chambers in order to separately sort and receive various different kinds of detergents therein.
  • a bottom surface of the detergent container is inclined downward at a rear side thereof, such that the detergents, received in the detergent container, can smoothly flow toward the outlet of the housing, along with the wash water, during the water supply cycle.
  • the detergents which were previously filled in the detergent receiving chambers of the detergent container, flow toward the outlet of the housing after being mixed with the wash water, such that they can be supplied into the water tub in a mixed state with the wash water.
  • the detergents When the pressure of the wash water supplied into the detergent receiving chambers is low, the detergents may be supplied into the water tub in an insufficiently mixed state with the wash water, and thus may remain in the detergent supply device. On the contrary, when the pressure of the wash water supplied into the detergent receiving chambers is high, the wash water collides with the detergents at a high speed, producing detergent bubbles.
  • liquid detergent exhibiting high-viscosity and high-foamability such as, for example, a rinsing agent
  • the wash water may be directly supplied into the water tub without mixing with the rinsing agent, while leaving the rinsing agent in the detergent container.
  • the pressure of the wash water is high, a great deal of bubbles as stated above may be produced, thereby invading other detergent receiving chambers filled with different kinds of detergents, or being leaked out of the washing machine.
  • a washing machine having a detergent supply device which can maintain the pressure of wash water, supplied into detergent receiving chambers, at a predetermined value, thereby preventing detergent from remaining in the detergent receiving chambers when low-pressure wash water is supplied, or from producing bubbles when high-pressure wash water is supplied.
  • a washing machine having a detergent supply device
  • the detergent supply device including a housing having a plurality of inlets connected with respective water supply pipes, and an outlet connected with a washing tub, a detergent container detachably inserted in the housing and including a plurality of detergent receiving chambers, and water supply chambers to adjust a pressure of wash water, supplied from the inlets, within a predetermined range, and to supply the wash water into the detergent receiving chambers.
  • the water supply chambers may each include a flow channel for leading the wash water from the inlets.
  • One of the flow channels may include pressure-adjustment holes to discharge the wash water at a flow rate corresponding to a pressure value of approximately 20 psi, the wash water passing through the flow channel, from the flow channel.
  • a plurality of the water supply chambers may be included corresponding to the respective detergent receiving chambers of the detergent container, and the wash water discharged from the pressure-adjustment holes formed at the flow channel to supply the wash water into one of the detergent receiving chambers may be supplied into another one of the detergent receiving chambers.
  • the flow channel may communicate with the plurality of the water supply pipes arranged such that water supply directions thereof, intersect each other, and the flow channel may supply the wash water, simultaneously injected from the plurality of the water supply pipes and converged at a predetermined position, into the water supply chambers.
  • One end of the flow channel may include a flow channel widening portion to supply a part of the converged wash water, exceeding a predetermined flow rate, into the water supply chambers.
  • the water supply chambers may be positioned in an upper portion of the housing, and the detergent container may be detachably inserted in a lower portion of the housing.
  • a plurality of the detergent receiving chambers may be defined in the detergent container, and a plurality of the water supply chambers may be positioned above the detergent container to correspond to the respective detergent receiving chambers.
  • FIG. 1 is a perspective view illustrating an interior of a washing machine in accordance with the present invention
  • FIG. 2 is an exploded perspective view illustrating a detergent supply device of the washing machine shown in FIG. 1 ;
  • FIG. 3 is a plan sectional view illustrating flow channels defined in an upper case of the detergent supply device shown in FIG. 2
  • FIG. 1 illustrates a drum type washing machine in accordance with the present invention
  • the washing machine includes a cylindrical water tub 11 installed in a body 10 to contain wash water therein, and a cylindrical washing tub 12 rotatably installed in the water tub 11 and formed at a peripheral wall surface thereof with a plurality of spin-dry holes, a driving motor 13 providing below the water tub 11 to rotate the washing tub 12 , installed in the water tub 11 , in a forward or reverse direction for performing washing, rinsing and spin-drying operations.
  • openings are provided at respective corresponding front ends of the body 10 , water tub 11 and washing tub 12 to place laundry into the washing tub 12 or remove the laundry from the washing tub 12 through the openings.
  • a door 14 is installed at the front end of the body 10 .
  • the water tub 11 Above the water tub 11 are provided a water supply device 20 and a detergent supply device 15 , to simultaneously supply the wash water and detergent into the water tub 11 in a water supply cycle. Below the water tub 11 is further provided a drainage device 16 to forcibly drain the wash water from the water tub 11 after completion of the washing operation.
  • the drainage device 16 includes a drainage pipe 16 a , and a drainage pump 16 b.
  • the water supply device 20 includes a plurality of water supply valves 21 , which are connectable to an external water supply hose (not shown) to control a supply of water, a plurality of water supply pipes 23 connected between the respective water supply valves 21 and the detergent supply device 15 , and a connection pipe 24 to guide the wash water which passes through the detergent supply device 15 , into the water tub 11 .
  • the detergent supply device 15 includes a box-shaped housing 30 having an opening 34 formed at a front end thereof, and a detergent container 35 detachably inserted in the housing 30 through the opening 34 .
  • the detergent supply device 15 is mounted at an upper front side of the body
  • the housing 30 of the detergent supply device 15 is formed by coupling an upper case 40 with a lower case 31 .
  • the lower case 31 includes an interior space for receiving the detergent container 35 , and is opened at front and upper surfaces thereof.
  • the upper case 40 is coupled with the lower case 31 to cover the open upper surface of the lower case 31 .
  • the upper case 40 internally defines a plurality of water supply chambers 41 , 42 , 43 and 44 which are divided by partitions. At a bottom surface of the upper case 40 are perforated a plurality of holes 48 to distribute the wash water, which was supplied into the respective water supply chambers 41 , 42 , 43 and 44 , into the detergent container 35 positioned below the upper case 40 . At a rear end of the upper case are perforated a plurality of inlets 49 a , 49 b , 49 c and 49 d connected with respective water supply pipes 23 a , 23 b , 23 c and 23 d to supply the wash water into the water supply chambers 41 , 43 and 44 .
  • the upper case 40 further internally defines flow channels, and detailed structure of the flow channels will be explained later with reference to FIG. 3 .
  • the lower case 31 is formed at a rear end of a bottom surface thereof with an outlet 32 , and the connection pipe 24 is connected with the outlet 32 , such that the water inside the lower case 31 can be supplied into the water tub 11 .
  • the bottom surface of the lower case 31 is inclined downward toward the outlet 32 , in order to secure smooth flow of the wash water into the outlet 32 .
  • Further, along upper ends of both lateral surfaces of the lower case 31 are installed guide rails 33 to guide the detachment of the detergent container 35 .
  • the detergent container 35 includes an open upper surface, and internally defines a plurality of detergent receiving chambers 35 a , 35 b , 35 c and 35 d , which are divided by partitions in order to separately sort and receive several different kinds of detergents.
  • the detergent receiving chambers are divided into the preliminary washing detergent receiving chamber 35 b to receive powder detergent for use in preliminary washing, the powder detergent receiving chamber 35 a to receive powder detergent for use in main washing, the rinsing agent receiving chamber 35 c to receive liquid rinsing agent, and the bleaching agent receiving chamber 35 d to receive liquid bleaching agent.
  • the detergent receiving chambers 35 a and 35 b receiving the powder detergent, is defined a discharge opening 36 a
  • the detergent receiving chambers 35 c and 35 d which receive liquid detergent, each include siphons 36 b.
  • the respective detergent receiving chambers 35 a , 35 b , 35 c and 35 d correspond to the respective water supply chambers 41 , 42 , 43 and 44 defined in the upper case 40 , and a bottom surface of the detergent container 35 is inclined downward toward its rear side.
  • the wash water is supplied into the detergent container 35 through the respective water supply chambers 41 , 42 , 43 and 44 , the different detergents received in the detergent receiving chambers 35 a , 35 b , 35 c and 35 d flow toward the outlet 32 of the housing 30 so as to be supplied into the water tub 11 by passing through the discharge opening 36 a and the siphons 36 b in a mixed state with the wash water.
  • the upper case 40 of the detergent supply device 15 comprises a plurality of the water supply chambers 41 , 42 , 43 and 44 , and at bottom surfaces of the water supply chambers 41 , 42 , 43 and 44 are formed the water supply holes 48 .
  • the water supply chambers are classified into a first water supply chamber 41 which is defined at a position corresponding to the powder detergent receiving chamber 35 a , a second water supply chamber 42 which is defined at a position corresponding to the preliminary washing detergent receiving chamber 35 b , a rinsing water supply chamber 43 which is defined at a position corresponding to the rinsing agent receiving chamber 35 c , and a third water supply chamber 44 which is defined at a position corresponding to the beaching agent receiving chamber 35 d.
  • the water supply pipes include a first water supply pipe 23 a , a second water supply pipe 23 b shown at an uppermost position of FIG. 3 , the hot water supply pipe 23 d arranged beside the second water supply pipe 23 b in parallel, and a third water supply pipe 23 c .
  • the third water supply pipe 23 c is located beside the first water supply pipe 23 a such that water supply directions thereof intersect each other.
  • the respective water supply pipes 23 a , 23 b , 23 c and 23 d are opened or closed by respective water supply valves 21 a , 21 b , 21 c and 21 d under the control of a control unit (not shown).
  • the water supply pipes 23 a , 23 b , 23 c and 23 d communicate with the water supply chambers 41 , 42 , 43 and 44 through a plurality of flow channels 41 a , 42 a , 44 a , 45 and 46 .
  • Both the third water supply pipe 23 c and the first water supply pipe 23 a arranged adjacent to each other, supply the wash water such that their water supply directions intersect each other at a flow channel branching portion 47 .
  • From the flow channel branching portion 47 are branched the three flow channels, namely, the first flow channel 41 a to supply the wash water into the first water supply chamber 41 , the rinsing water supply flow channel 45 to supply the wash water into the rinsing water supply chamber 43 , and the third flow channel 44 a to supply the wash water into the third water supply chamber 44 .
  • the first flow channel 41 a communicates at one end thereof with the first water supply chamber 41 , and the other end of the first flow channel 41 a is formed in a straight line corresponding with the water supply direction of the first water supply pipe 23 a .
  • the hot water flow channel 46 which communicates with the hot water supply pipe 23 d , is merged to a predetermined position of the first flow channel 41 a.
  • One end of the third flow channel 44 a extends to the third water supply chamber 44 , and the other end of the third flow channel 44 a lays on a straight line with the water supply direction of the third water supply pipe 23 c.
  • One end of the rinsing water supply flow channel 45 is positioned between the end of the first flow channel 41 a , on a straight line with the first water supply pipe 23 a , and the end of the third flow channel 44 a , on a straight line with the third water supply pipe 23 c .
  • the other end of the rinsing water supply flow channel 45 extends to the rinsing water supply chamber 43 .
  • a flow channel widening portion 45 b At the end of the rinsing water supply flow channel 45 , near the flow channel branching portion 47 , is formed a flow channel widening portion 45 b such that a diameter of the rinsing water supply flow channel 45 increases toward the flow channel branching portion 47 .
  • a portion of the rinsing water supply flow channel 45 located above the bleaching agent receiving chamber 35 d , are formed a plurality of pressure-adjustment holes 45 a.
  • the second water supply chamber 42 which supplies the wash water into the preliminary washing detergent receiving chamber 35 b , communicates with the second water supply pipe 23 b through the second flow channel 42 a.
  • the detergent container 35 of the detergent supply device 15 is pulled out of and separated from the housing 30 (as shown in FIG. 1 ) in order to fill powder detergent, rinsing agent, and bleaching agent in the respective detergent receiving chambers 35 a , 35 b , 35 c and 35 d defined in the detergent container 35 .
  • the washing machine is driven to initiate a water supply cycle after the detergent container 35 is completely pushed into the housing 30 .
  • the wash water supplied from an external water supply source (not shown) by passing through the water supply valves 21 , is supplied into the detergent supply device 15 through the inlets 49 a , 49 b , 49 c and 49 d thereof.
  • the wash water supplied in the detergent supply device 15 passes through at least one of the water supply chambers 41 , 42 , 43 and 44 , thereby being distributed into the respective detergent receiving chambers 35 a , 35 b , 35 c and 35 d of the detergent container 35 . Then, the wash water is mixed with the detergents in the detergent receiving chambers 35 a , 35 b , 35 c and 35 d , and is discharged to the lower case 31 through the outlet 36 a or the siphons 36 b , and in turn, is supplied into the water tub 11 through the outlet 32 formed at the lower case 31 .
  • the wash water is supplied into the second water supply chamber 42 through the second water supply pipe 23 b , such that the detergent received in the preliminary washing detergent receiving chamber 35 b is first supplied into the water tub 11 .
  • the wash water is supplied into the first water supply chamber 41 through the hot water supply pipe 23 d and the first water supply pipe 23 a , such that the detergent received in the powder detergent receiving chamber 35 a is supplied into the water tub 11 .
  • the wash water is supplied into the third water supply chamber 44 through the third water supply pipe 23 c , such that the bleaching agent received in the bleaching agent receiving chamber 35 d is supplied into the water tub 11 .
  • the wash water is injected through both the third water supply pipe 23 c and the first water supply pipe 23 a , such that the wash water is supplied into the rinsing water supply chamber 43 through the rinsing water supply flow channel 45 . Since the flow channel widening portion 45 b is formed at the end of the rinsing water supply flow channel 45 , even when the first and third water supply pipes 23 a and 23 c do not inject the wash water on a straight line with the rinsing water supply flow channel 45 due to a difference in water supply pressure, a sufficient amount of the wash water can be supplied into the rinsing water supply flow channel 45 .
  • the rinsing water supply flow channel 45 includes the pressure adjustment holes 45 a , when the high-pressure wash water flows through the rinsing water supply flow channel 45 , a great amount of the wash water is discharged into the bleaching agent receiving chamber 35 d through the pressure-adjustment holes 45 a , whereas, when the low-pressure wash water flows through the rinsing water supply flow channel 45 , only a relatively small amount of the wash water is discharged into the bleaching agent receiving chamber 35 d through the pressure adjustment holes 45 a .
  • the pressure of the wash water reaching the rinsing water supply chamber 43 is adjusted within a predetermined range as the wash water passes through the rinsing water supply flow channel 45 , and accordingly, the pressure of the wash water distributed into the rinsing agent receiving chamber 35 c is adjusted within the predetermined range.
  • the wash water is discharged into the bleaching agent receiving chamber 35 d while passing through the rinsing water supply flow channel 45 , therefore the bleaching agent adding course can be simultaneously performed with the rinsing agent adding course, thereby shortening a detergent supply control course, or reducing the amount of the wash water to be supplied through the third water supply pipe 23 c in the bleaching agent adding course, resulting in a reduction in detergent supply time.
  • a washing machine having a detergent supply device in accordance with the present invention is designed to supply wash water of a predetermined pressure from water supply chambers, thereby preventing detergent from remaining in detergent receiving chambers or from producing bubbles.
  • the water supply pipes simultaneously supply the wash water into the water supply chambers through a flow channel such that their water supply directions intersect each other, and the flow channel is formed at one end thereof with a flow channel widening portion, even when the water supply directions do not exactly coincide with a longitudinal direction of the flow channel, it is possible to prevent an excessively reduced amount of the wash water from being supplied into the water supply chambers.
US11/128,235 2004-06-15 2005-05-13 Washing machine having detergent supply device Abandoned US20050274156A1 (en)

Applications Claiming Priority (2)

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KR1020040044039A KR20050118894A (ko) 2004-06-15 2004-06-15 세제공급장치를 갖는 세탁기
KR2004-44039 2004-06-15

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US (1) US20050274156A1 (zh)
EP (1) EP1607509A1 (zh)
JP (1) JP2006000626A (zh)
KR (1) KR20050118894A (zh)
CN (1) CN1712622A (zh)
RU (1) RU2300593C2 (zh)

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JP7149462B2 (ja) * 2019-04-09 2022-10-07 パナソニックＩｐマネジメント株式会社 洗濯機
WO2021085162A1 (ja) * 2019-10-31 2021-05-06 パナソニックＩｐマネジメント株式会社 洗濯機
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KR20050118894A (ko) 2005-12-20
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EP1607509A1 (en) 2005-12-21
RU2005115277A (ru) 2006-11-27
CN1712622A (zh) 2005-12-28

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