EP2808435B1 - Washing machine comprising an injection nozzle - Google Patents
Washing machine comprising an injection nozzle Download PDFInfo
- Publication number
- EP2808435B1 EP2808435B1 EP14170294.4A EP14170294A EP2808435B1 EP 2808435 B1 EP2808435 B1 EP 2808435B1 EP 14170294 A EP14170294 A EP 14170294A EP 2808435 B1 EP2808435 B1 EP 2808435B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection
- fastener
- gasket
- tub
- guide
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
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- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/266—Gaskets mounted between tub and casing around the loading opening
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- 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
- D06F39/024—Devices for adding soap or other washing agents mounted on the agitator or the rotating drum; Free body dispensers
-
- 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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/002—Washing machines, apparatus, or methods not otherwise provided for using bubbles
Definitions
- the present invention relates to a washing machine having an improved wash water injection configuration.
- washing machines serve to wash or dry laundry.
- wash water introduced from an external source may be subjected to circulation and injection.
- a typical washing machine includes a cabinet defining an external appearance of the washing machine, a tub placed within the cabinet, and a drum rotatably placed within the tub.
- a gasket to reduce vibration may be interposed between the tub and the cabinet.
- An injection nozzle to inject wash water may be located at the gasket. Since the gasket may be formed of a high ductility material, such as rubber, etc., installing the injection nozzle to the gasket may cause leakage of wash water from the tub due to change in the direction of the injection nozzle.
- a position of the injection nozzle may be changed by injection pressure of wash water or vibration of the drum during washing.
- US2011/099728 , WO2012/141411 , DE 10 2004 036672 , EP1505191 , US2010/251784 and DE 41 28 904 relate to securing nozzles for injecting water into washing machines.
- US2012/204607 relates to a bubble generating device and a means for extracting air from the drum of a washing machine.
- a washing machine includes a cabinet having an opening, a tub placed within the cabinet, a drum rotatably placed within the tub, a gasket connecting the tub and the cabinet to each other to reduce vibration of the tub to be transmitted to the cabinet during rotation of the drum, and an injection device configured to inject wash water into the tub, wherein the injection device includes an injection nozzle into which wash water is introduced, the injection nozzle penetrating the gasket, an injection guide configured to guide wash water introduced through the injection nozzle so as to inject the wash water, and a fastener penetrating the gasket to fix a position of the injection nozzle.
- the fastener may be spaced apart from the injection nozzle in parallel.
- the fastener may be located at an exit end of an injection flow path defined in the injection guide.
- the washing machine may include a bubble generation device configured to generate and supply bubbles into the tub, and interior air of the drum may be guided to the bubble generation device through the fastener flow path.
- At least one of the injection nozzle and the fastener may include a stepped portion protruding from an outer circumference thereof to allow the injection nozzle to be supported by an outer surface of the gasket.
- the gasket may include a through-hole for penetration of at least a portion of the injection device, and a support portion protruding outward from the gasket around the through-hole to support the stepped portion.
- the injection guide may include an upper guide, by which the injection nozzle and the fastener are supported, a lower guide facing a nozzle flow path defined in the injection nozzle, the lower guide being inclined toward the drum, and a lateral guide connecting the upper guide and the lower guide to each other.
- the upper guide may include a bent surface inclined toward the drum and defining an upper boundary of wash water injected via the injection guide.
- One end of a fastener flow path defined in the fastener may be located on the bent surface.
- the injection device may include at least one injection device located in a circumferential direction of the gasket.
- a washing machine includes a cabinet, a tub placed within the cabinet, a drum rotatably placed within the tub, a gasket connecting the cabinet and the tub to each other, and an injection device penetrating the gasket, wherein the injection device includes an injection nozzle having a nozzle seat supported by a support portion protruding from the gasket to prevent the injection device from being separated in the Z-axis corresponding to a longitudinal direction of the injection nozzle, and a nozzle flow path penetrating the gasket to communicate the interior and the exterior of the gasket with each other, and a fastener spaced apart from the injection nozzle in parallel.
- the injection device includes an injection guide configured to inject wash water introduced through the nozzle flow path into the drum.
- the injection nozzle and the fastener may be spaced apart from each other and coupled to the injection guide.
- the fastener may be located closer to the exit end of the injection guide than the injection nozzle.
- the fastener includes a fastener flow path communicating with the interior of the tub.
- the washing machine may include a bubble generation device to generate and supply bubbles into the tub, and interior air of the drum may be guided to the bubble generation device through the fastener flow path.
- the injection device may include at least one injection device located in a circumferential direction of the gasket.
- FIG. 1 is a view illustrating a washing machine according to an embodiment.
- the washing machine according to an embodiment, as exemplarily illustrated in FIG. 1 , includes a cabinet 10 defining an external appearance of the washing machine, a tub 20 in which wash water is received, the tub 20 being installed within the cabinet 10 via suspension, a drum 30 rotatably installed within the tub 20, a door 12 to open or close a laundry opening 11 for introduction of laundry, and a drive motor 40 installed to a rear surface of the tub 20 to generate torque required to rotate the drum 30.
- the drum 30 is rotated by the drive motor 40 after laundry is introduced into the drum 30 through the laundry opening 11 opened by the door 12, the laundry within the drum 30 is washed by being raised upward and dropping.
- the drum 30 has communication holes 31 to allow wash water of the tub 20 to be introduced into the drum 30.
- Lifters 32 to raise laundry upward may be arranged inside the drum 30.
- the drive motor 40 includes a stator 41 installed to the tub 20, a rotor 42 to implement rotation via interaction with the stator 41, and a rotating shaft 43 having one end coupled to the rotor 42 and the other end penetrating the rear surface of the tub 20 to thereby be installed to the drum 30, the rotating shaft 43 being rotated along with the rotor 42 to rotate the drum 30.
- a water supply device 50 to supply water into the tub 20 may be disposed above the tub 20, and a drain device 60 to discharge wash water from the tub 20 may be disposed below the tub 20.
- the water supply device 50 includes a first water supply pipe 51 connected to an external water supply source, a water supply valve 52 to open or close the first water supply pipe 51, a detergent feeder 53 to mix detergent with wash water supplied through the first water supply pipe 51, a second water supply pipe 54 connecting the detergent feeder 53 and the tub 20 to each other to guide a mixture of the detergent and wash water to the tub 20, and a third water supply pipe 55 diverged from the first water supply pipe 51 and connected to an injection device 100.
- the drain device 60 includes a pump 61 to pump wash water from the tub 20, a first drainpipe 62 connecting the tub 20 and the pump 61 to each other to guide wash water of the tub 20 to the pump 61, and a second drainpipe 63 connected to the pump 61 and extending outward from the cabinet 1 to outwardly discharge wash water.
- a gasket 80 may be interposed between the cabinet 10 and the tub 20.
- the gasket 80 may be coupled at one side thereof to the cabinet 10 and at the other side thereof to the periphery of a front opening of the tub 20. This prevents wash water stored in the tub 20 from leaking from a gap between the tub 20 and the cabinet 10.
- the gasket 80 may have a corrugated peripheral portion to absorb vibration of the tub 20.
- the gasket 80 may include a tub coupling portion 81 fastened to the tub 20, a cabinet coupling portion 82 fastened to the cabinet 10, and a connection portion 83 connecting the tub coupling portion 81 and the cabinet coupling portion 82 to each other, the connection portion 83 being corrugated to absorb shock.
- the gasket 80 may be formed of an elastic material, and may contain additives to increase elasticity and rigidity thereof.
- the gasket 80 is provided with a first injection device 101 and a second injection device 102.
- injection of wash water may use the two injection devices 100, however, the disclosure is not limited thereto, and the injection devices 100 may be installed to inject wash water into the drum 30 or toward the door 12 in at least one direction.
- an embodiment may provide the gasket 80 with the two injection devices 100, the injection devices may be provided at various positions for injection of wash water into the drum 30.
- FIG. 2 is a view illustrating arrangement of the injection device according to an embodiment
- FIG. 3 is a view illustrating a coupled state of the injection device according to an embodiment
- FIG. 4 is a sectional view of the injection device according to an embodiment.
- the injection devices 100 may be provided at the gasket 80, for example, the injection devices may be provided at the connection portion 83 of the gasket 80.
- the number and position of the injection devices 100 are not limited to the above description, and one or more injection devices may be arranged in a circumferential direction of the gasket 80. According to an embodiment, for convenience of description, two first and second injection devices 101 and 102 may be arranged at symmetrical left and right positions of an upper end of the gasket 80.
- Each injection device 100 includes an injection nozzle 110, an injection guide 120, and a fastener 130.
- the injection nozzle 110, the injection guide 120, and the fastener 130 may be separate elements, or may be integrally formed via injection molding.
- the injection nozzle 110 may be connected to a water supply pipe to inject wash water into the drum 30. Although a wash water supply path to the injection nozzle 110 is not specifically defined, according to an embodiment, the injection nozzle 110 may be connected to the third water supply pipe 55 diverged from the first water supply pipe 51.
- the injection nozzle 110 has a nozzle flow path 112a for passage of wash water.
- One end of the injection nozzle 110 may be connected to the water supply pipe and the other end of the injection nozzle 110 may be coupled to the injection guide 120.
- the injection nozzle 110 may be separate from the injection guide 120, or may be integrally formed with the injection guide 120.
- the injection nozzle 110 penetrates the connection portion 83 of the gasket 80.
- the injection nozzle 110 may have a stepped portion 114 around an outer circumference thereof and may be supported by an outer surface of the gasket 80 by the stepped portion 114.
- the other end of the injection nozzle 110 may be supported by the injection guide 120 that supports an inner surface of the gasket 80.
- the injection nozzle 110 may be installed to the gasket 80 without a risk of separation.
- the stepped portion 114 may be formed at the injection nozzle 110, the stepped portion 114 may be formed at the fastener 130.
- the injection nozzle 110 and the fastener 130 may be provided respectively with a nozzle seat 116 and a seat 136, which are coupled to the gasket 80 between the respective stepped portions 114 and 134 and the injection guide 120. Lengths of the nozzle seat 116 and the seat 136 may vary based on a thickness of the gasket 80.
- the injection guide 120 may be provided at the other end of the injection nozzle 110 to inject wash water passing through the nozzle flow path 112a.
- the injection guide 120 may have a fanwise injection flow path 120a, a width of which gradually increases toward an exit end thereof. This shape ensures that wash water is injected over a wide range into the drum 30.
- the injection guide 120 may include a lower guide 122, an upper guide 124, and a lateral guide 126.
- the lower guide 122 may be located to face an exit end 112b of the nozzle flow path 112a, and may obliquely extend into the drum 30. A width of the lower guide 122 may increase toward the exit end of the injection flow path 120a.
- the upper guide 124 supports the injection nozzle 110 and the fastener 130 and defines an upper boundary of wash water.
- the lateral guide 126 may extend to connect the upper guide 124 and the lower guide 122 to each other.
- Wash water introduced into the nozzle flow path 112a may have upper and lower boundaries defined by the upper guide 124 and the lower guide 122 and a width direction boundary defined by the lateral guide 126.
- the upper guide 124 may have a bent surface 125 such that at least a portion of the upper guide 124 proximate to the injection flow path 120a is inclined into the drum 30.
- the bent surface 125 defines the upper boundary of wash water passing through the injection flow path 120a.
- Both the fastener 130 and the injection nozzle 110 may be supported by the upper guide 124 of the injection guide 120.
- the fastener 130 may be spaced apart from the injection nozzle 110 and function to prevent change in the direction of the injection nozzle 110.
- the fastener 130 may be located in parallel to the Z-axis and be integrated with the upper guide 124.
- the fastener 130 penetrates the gasket 80 to thereby be supported by the gasket 80. Consequently, the fastener 130 may prevent the injection nozzle 110 from being tilted to the X-axis or the Y-axis perpendicular to the Z-axis.
- Wash water may be injected into the drum 30 by passing through the nozzle flow path 112a of the injection nozzle 110 and the injection flow path 120a of the injection guide 120. Both the injection flow path 120a and the nozzle flow path 112a may be angled to each other, which may cause direction change due to injection pressure of wash water.
- the fastener 130 may be located at the exit end of the injection flow path 120a of the injection guide 120. That is, the fastener 130 may be positioned on the injection guide 120 so as to be spaced apart, for example, in parallel, from the injection nozzle 110 toward the exit end of the injection flow path 120a.
- the gasket 80 may have through-holes 84 such that the injection nozzle 110 and the fastener 130 penetrate the gasket 80, and support portions 85 protruding outward from the gasket 80 around the through-holes 84.
- the injection nozzle 110 and the fastener 130 may be respectively provided with the stepped portions 114 and 134, and thus are supported by the outer surface of the gasket 80.
- the stepped portions 114 and 134 may be directly supported by the through-holes 84, the stepped portions 114 and 134 may be supported by ends of the support portions 85 to allow the injection device 100 to be supported by the gasket 80.
- the stepped portions 114 and 134 of the injection device 100 may be supported by the outer surface of the gasket 80 and the inner surface of the gasket 80 may be supported by the upper guide 124.
- a positioning recess 86 may be formed in the support portion 85, and a fixing boss 118 formed at the injection nozzle 110 or the fastener 130 may be seated in the positioning recess 86.
- the positioning recess 86 is formed in one side of the support portion 85, and the fixing boss 118 is formed at an outer circumference of the injection nozzle 110 or the fastener 130 to correspond to the positioning recess 86. According to an embodiment, the fixing boss 118 is formed at the injection nozzle 110.
- the positioning recess 86 and the fixing boss 118 function to prevent change in the position of the injection nozzle 110, and to indicate a coupling position to assist the injection device 100 in being coupled to the gasket 80 at an accurate position without direction change.
- FIG. 5 is a view illustrating a washing machine according to an embodiment
- FIG. 6 is a view illustrating arrangement of an injection device according to an embodiment
- FIG. 7 is a sectional view of the injection device according to an embodiment
- FIG. 8 is a perspective view of the injection device according to an embodiment.
- a bubble generation device 70 may be disposed below the tub 20 to generate and supply bubbles into the tub 20.
- the bubble generation device 70 may be connected to a transfer pipe 64 which may be in turn connected to the pump 61 such that wash water is supplied from the pump 61 to the transfer pipe 64.
- the bubble generation device 70 may be connected to a connection pipe 13 which may be in turn connected to the top of the tub 20 such that air may be transferred to the bubble generation device 70.
- One end of the connection pipe 13 may be connected to the bubble generation device 70, and the other end of the connection pipe 13 positioned higher than the level of wash water received in the tub 20 such that interior air of the tub 20 may be suctioned into the connection pipe 13.
- bubbles may be generated and supplied into the tub 20 as wash water transferred from the pump 61 and air transferred through the connection pipe 13 are mixed in the bubble generation device 70.
- the injection device 100 may include a third injection device 103.
- the pump 61 may be provided with a circulation pipe 65 connected to the third injection device 103. Wash water supplied from the pump 61 through the circulation pipe 65 may be directed to the injection nozzle 110 of the third injection device 103, and then may be directed into the drum 30.
- the fastener 130 may be spaced apart from the Z-axis of the injection nozzle 110 and functions to prevent change in the direction of the injection device 110.
- the fastener 130 may function to transfer interior air of the tub 20 to the bubble generation device 70 through a fastener flow path 130a formed therein.
- connection pipe 13 connected to the bubble generation device 70 may be coupled to the fastener 130 such that interior air of the tub 20 is suctioned into the bubble generation device 70.
- One end of the fastener flow path 130a may communicate with the connection pipe 13 connected to the bubble generation device 70, and the other end of the fastener flow path 130a may be located at the bent surface 125 of the upper guide 124 to communicate with the interior of the tub 20.
- the upper boundary of wash water injected through the injection flow path 120a may be defined by the bent surface 125 and the end of the fastener flow path 130a may be located on the bent surface 125, it may be possible to prevent wash water from flowing backward through the fastener flow path 130a.
- a washing machine having the above described configuration is additionally described.
- the washing machine includes the cabinet 10, the tub 20 placed within the cabinet 10, the drum 30 rotatably placed within the tub 20, the gasket 80 connecting the cabinet 10 and the tub 20 to each other, and the injection device 100 penetrating the gasket 80.
- the injection device 100 includes the injection nozzle 110, which includes the nozzle seat 116 supported by the support portion 85 protruding from the gasket 80 to prevent the injection device 100 from being separated in the Z-axis corresponding to a longitudinal direction of the injection nozzle 110 and the nozzle flow path 112a penetrating the gasket 80 to communicate the interior and the exterior of the gasket 80 with each other, and the fastener 130 spaced apart from the injection nozzle 110 to prevent the injection device 100 from being tilted to the X-axis or the Y-axis perpendicular to the Z-axis.
- the injection device 100 may include the injection guide 120 to inject wash water introduced through the nozzle flow path 112a into the drum 30.
- the injection nozzle 110 and the fastener 130 may be coupled to the injection guide 120 at positions spaced apart from each other.
- the fastener 130 may be located closer to the exit end of the injection guide 120 than the injection nozzle 110.
- the fastener 130 includes the fastener flow path 130a communicating with the interior of the tub 20.
- the bubble generation device 70 to generate and supply bubbles into the tub 30 may be provided, and interior air of the drum 30 may be directed to the bubble generation device 70 through the fastener flow path 130a.
- FIG. 9 is a view illustrating a coupled state of an injection device according to an example not falling within the scope of the present invention.
- An injection device 210 may include an injection nozzle 220, an injection guide 224, and a fastener 230.
- the fastener 230 may extend from the injection nozzle 220 in a radial direction from an axial nozzle flow path 220a of the injection nozzle 220.
- a through-hole 202 of a gasket 200 may have a combined shape of the circular cross section of the injection nozzle 220 and a bar-shaped cross section of the fastener 230.
- the injection device 100 may be coupled and fixed to the gasket 80, and function to inject wash water from the exterior to the interior of the gasket 80 or to discharge interior air of the drum 30 to the exterior of the gasket 80.
- the gasket 80 may have a through-hole 84 for insertion of the injection device 100.
- a plurality of through-holes 84 may be provided for injection of both the fastener 130 and the injection nozzle 110.
- the injection nozzle 110 and the fixing boss 118 may be positioned to correspond to the positioning recess 86 of the support portion 85.
- the stepped portions 114 and 134 are supported by the ends of the support portions 85 and the upper guide 124 of the injection guide 120 is supported by the inner surface of the gasket 80, it may be possible to prevent the injection device 100 from being separated from the gasket 80.
- the fastener 130 may prevent change in the direction of the injection nozzle 110.
- a technological advantage of an embodiment includes a washing machine having an improved configuration of an injection device and may ensure easy coupling of the injection device and prevent change in the direction of the installed injection device, thereby maintaining a constant wash water injection direction.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Description
- The present invention relates to a washing machine having an improved wash water injection configuration.
- In general, washing machines serve to wash or dry laundry. For laundry treatment using a washing machine, wash water introduced from an external source may be subjected to circulation and injection.
- A typical washing machine includes a cabinet defining an external appearance of the washing machine, a tub placed within the cabinet, and a drum rotatably placed within the tub. A gasket to reduce vibration may be interposed between the tub and the cabinet. An injection nozzle to inject wash water may be located at the gasket. Since the gasket may be formed of a high ductility material, such as rubber, etc., installing the injection nozzle to the gasket may cause leakage of wash water from the tub due to change in the direction of the injection nozzle.
- In addition, in the process of installing the injection nozzle to the gasket, a position of the injection nozzle may be changed by injection pressure of wash water or vibration of the drum during washing.
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US2011/099728 ,WO2012/141411 ,DE 10 2004 036672EP1505191 ,US2010/251784 andDE 41 28 904US2012/204607 relates to a bubble generating device and a means for extracting air from the drum of a washing machine. - It is an aspect of an embodiment to provide a washing machine in which an injection device to inject wash water may be stably fixed without change in position.
- Additional aspects are 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.
- According to an aspect of the present invention, there is provided a washing machine according to claim 1. Optional features are set out in the dependent claims.
- In accordance with an aspect of an embodiment, a washing machine includes a cabinet having an opening, a tub placed within the cabinet, a drum rotatably placed within the tub, a gasket connecting the tub and the cabinet to each other to reduce vibration of the tub to be transmitted to the cabinet during rotation of the drum, and an injection device configured to inject wash water into the tub, wherein the injection device includes an injection nozzle into which wash water is introduced, the injection nozzle penetrating the gasket, an injection guide configured to guide wash water introduced through the injection nozzle so as to inject the wash water, and a fastener penetrating the gasket to fix a position of the injection nozzle. The fastener may be spaced apart from the injection nozzle in parallel. The fastener may be located at an exit end of an injection flow path defined in the injection guide.
- The washing machine may include a bubble generation device configured to generate and supply bubbles into the tub, and interior air of the drum may be guided to the bubble generation device through the fastener flow path.
- At least one of the injection nozzle and the fastener may include a stepped portion protruding from an outer circumference thereof to allow the injection nozzle to be supported by an outer surface of the gasket.
- The gasket may include a through-hole for penetration of at least a portion of the injection device, and a support portion protruding outward from the gasket around the through-hole to support the stepped portion.
- The injection guide may include an upper guide, by which the injection nozzle and the fastener are supported, a lower guide facing a nozzle flow path defined in the injection nozzle, the lower guide being inclined toward the drum, and a lateral guide connecting the upper guide and the lower guide to each other.
- The upper guide may include a bent surface inclined toward the drum and defining an upper boundary of wash water injected via the injection guide.
One end of a fastener flow path defined in the fastener may be located on the bent surface. - The injection device may include at least one injection device located in a circumferential direction of the gasket.
- In accordance with an aspect of an embodiment, a washing machine includes a cabinet, a tub placed within the cabinet, a drum rotatably placed within the tub, a gasket connecting the cabinet and the tub to each other, and an injection device penetrating the gasket, wherein the injection device includes an injection nozzle having a nozzle seat supported by a support portion protruding from the gasket to prevent the injection device from being separated in the Z-axis corresponding to a longitudinal direction of the injection nozzle, and a nozzle flow path penetrating the gasket to communicate the interior and the exterior of the gasket with each other, and a fastener spaced apart from the injection nozzle in parallel.
- The injection device includes an injection guide configured to inject wash water introduced through the nozzle flow path into the drum.
- The injection nozzle and the fastener may be spaced apart from each other and coupled to the injection guide.
- The fastener may be located closer to the exit end of the injection guide than the injection nozzle.
- The fastener includes a fastener flow path communicating with the interior of the tub.
- The washing machine may include a bubble generation device to generate and supply bubbles into the tub, and interior air of the drum may be guided to the bubble generation device through the fastener flow path.
- The injection device may include at least one injection device located in a circumferential direction of the gasket.
- These and/or other aspects of the embodiments 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 view illustrating a washing machine according to an embodiment; -
FIG. 2 is a view illustrating an arrangement of an injection device according to an embodiment; -
FIG. 3 is a view illustrating a coupled state of an injection device according to an embodiment; -
FIG. 4 is a sectional view of the injection device according to an embodiment; -
FIG. 5 is a view illustrating a washing machine according to an embodiment; -
FIG. 6 is a view illustrating an arrangement of an injection device according to an embodiment; -
FIG. 7 is a sectional view of an injection device according to an embodiment; -
FIG. 8 is a perspective view of an injection device according to an embodiment; and -
FIG. 9 is a view illustrating a coupled state of an injection device according to an example not falling within the scope of the present invention. - 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.
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FIG. 1 is a view illustrating a washing machine according to an embodiment. The washing machine according to an embodiment, as exemplarily illustrated inFIG. 1 , includes acabinet 10 defining an external appearance of the washing machine, atub 20 in which wash water is received, thetub 20 being installed within thecabinet 10 via suspension, adrum 30 rotatably installed within thetub 20, adoor 12 to open or close alaundry opening 11 for introduction of laundry, and adrive motor 40 installed to a rear surface of thetub 20 to generate torque required to rotate thedrum 30. - Accordingly, as the
drum 30 is rotated by thedrive motor 40 after laundry is introduced into thedrum 30 through the laundry opening 11 opened by thedoor 12, the laundry within thedrum 30 is washed by being raised upward and dropping. - The
drum 30 has communication holes 31 to allow wash water of thetub 20 to be introduced into thedrum 30.Lifters 32 to raise laundry upward may be arranged inside thedrum 30. - The
drive motor 40 includes astator 41 installed to thetub 20, arotor 42 to implement rotation via interaction with thestator 41, and a rotatingshaft 43 having one end coupled to therotor 42 and the other end penetrating the rear surface of thetub 20 to thereby be installed to thedrum 30, the rotatingshaft 43 being rotated along with therotor 42 to rotate thedrum 30. - A
water supply device 50 to supply water into thetub 20 may be disposed above thetub 20, and adrain device 60 to discharge wash water from thetub 20 may be disposed below thetub 20. - The
water supply device 50 includes a firstwater supply pipe 51 connected to an external water supply source, awater supply valve 52 to open or close the firstwater supply pipe 51, adetergent feeder 53 to mix detergent with wash water supplied through the firstwater supply pipe 51, a secondwater supply pipe 54 connecting thedetergent feeder 53 and thetub 20 to each other to guide a mixture of the detergent and wash water to thetub 20, and a thirdwater supply pipe 55 diverged from the firstwater supply pipe 51 and connected to aninjection device 100. Thedrain device 60 includes apump 61 to pump wash water from thetub 20, afirst drainpipe 62 connecting thetub 20 and thepump 61 to each other to guide wash water of thetub 20 to thepump 61, and asecond drainpipe 63 connected to thepump 61 and extending outward from the cabinet 1 to outwardly discharge wash water. - A
gasket 80 may be interposed between thecabinet 10 and thetub 20. Thegasket 80 may be coupled at one side thereof to thecabinet 10 and at the other side thereof to the periphery of a front opening of thetub 20. This prevents wash water stored in thetub 20 from leaking from a gap between thetub 20 and thecabinet 10. Thegasket 80 may have a corrugated peripheral portion to absorb vibration of thetub 20. - The
gasket 80 may include atub coupling portion 81 fastened to thetub 20, acabinet coupling portion 82 fastened to thecabinet 10, and aconnection portion 83 connecting thetub coupling portion 81 and thecabinet coupling portion 82 to each other, theconnection portion 83 being corrugated to absorb shock. - The
gasket 80 may be formed of an elastic material, and may contain additives to increase elasticity and rigidity thereof. - To inject wash water into the
drum 30 or to suction interior air of thedrum 30, thegasket 80 is provided with afirst injection device 101 and asecond injection device 102. According to an embodiment injection of wash water may use the twoinjection devices 100, however, the disclosure is not limited thereto, and theinjection devices 100 may be installed to inject wash water into thedrum 30 or toward thedoor 12 in at least one direction. - In addition, although an embodiment may provide the
gasket 80 with the twoinjection devices 100, the injection devices may be provided at various positions for injection of wash water into thedrum 30. -
FIG. 2 is a view illustrating arrangement of the injection device according to an embodiment,FIG. 3 is a view illustrating a coupled state of the injection device according to an embodiment, andFIG. 4 is a sectional view of the injection device according to an embodiment. - The
injection devices 100 may be provided at thegasket 80, for example, the injection devices may be provided at theconnection portion 83 of thegasket 80. - The number and position of the
injection devices 100 are not limited to the above description, and one or more injection devices may be arranged in a circumferential direction of thegasket 80. According to an embodiment, for convenience of description, two first andsecond injection devices gasket 80. - Each
injection device 100 includes aninjection nozzle 110, aninjection guide 120, and afastener 130. - The
injection nozzle 110, theinjection guide 120, and thefastener 130 may be separate elements, or may be integrally formed via injection molding. - The
injection nozzle 110 may be connected to a water supply pipe to inject wash water into thedrum 30. Although a wash water supply path to theinjection nozzle 110 is not specifically defined, according to an embodiment, theinjection nozzle 110 may be connected to the thirdwater supply pipe 55 diverged from the firstwater supply pipe 51. - The
injection nozzle 110 has anozzle flow path 112a for passage of wash water. One end of theinjection nozzle 110 may be connected to the water supply pipe and the other end of theinjection nozzle 110 may be coupled to theinjection guide 120. Theinjection nozzle 110 may be separate from theinjection guide 120, or may be integrally formed with theinjection guide 120. - The
injection nozzle 110 penetrates theconnection portion 83 of thegasket 80. Theinjection nozzle 110 may have a steppedportion 114 around an outer circumference thereof and may be supported by an outer surface of thegasket 80 by the steppedportion 114. The other end of theinjection nozzle 110 may be supported by theinjection guide 120 that supports an inner surface of thegasket 80. Theinjection nozzle 110 may be installed to thegasket 80 without a risk of separation. - Although the stepped
portion 114 may be formed at theinjection nozzle 110, the steppedportion 114 may be formed at thefastener 130. Theinjection nozzle 110 and thefastener 130 may be provided respectively with anozzle seat 116 and aseat 136, which are coupled to thegasket 80 between the respective steppedportions injection guide 120. Lengths of thenozzle seat 116 and theseat 136 may vary based on a thickness of thegasket 80. - The
injection guide 120 may be provided at the other end of theinjection nozzle 110 to inject wash water passing through thenozzle flow path 112a. - The
injection guide 120 may have a fanwiseinjection flow path 120a, a width of which gradually increases toward an exit end thereof. This shape ensures that wash water is injected over a wide range into thedrum 30. - The
injection guide 120 may include alower guide 122, anupper guide 124, and alateral guide 126. - The
lower guide 122 may be located to face anexit end 112b of thenozzle flow path 112a, and may obliquely extend into thedrum 30. A width of thelower guide 122 may increase toward the exit end of theinjection flow path 120a. Theupper guide 124 supports theinjection nozzle 110 and thefastener 130 and defines an upper boundary of wash water. Thelateral guide 126 may extend to connect theupper guide 124 and thelower guide 122 to each other. - Wash water introduced into the
nozzle flow path 112a may have upper and lower boundaries defined by theupper guide 124 and thelower guide 122 and a width direction boundary defined by thelateral guide 126. - The
upper guide 124 may have abent surface 125 such that at least a portion of theupper guide 124 proximate to theinjection flow path 120a is inclined into thedrum 30. Thebent surface 125 defines the upper boundary of wash water passing through theinjection flow path 120a. - Both the
fastener 130 and theinjection nozzle 110 may be supported by theupper guide 124 of theinjection guide 120. Thefastener 130 may be spaced apart from theinjection nozzle 110 and function to prevent change in the direction of theinjection nozzle 110. - Assuming that a longitudinal axis of the
nozzle flow path 112a of thehollow injection nozzle 110 is the Z-axis, thefastener 130 may be located in parallel to the Z-axis and be integrated with theupper guide 124. Thefastener 130 penetrates thegasket 80 to thereby be supported by thegasket 80. Consequently, thefastener 130 may prevent theinjection nozzle 110 from being tilted to the X-axis or the Y-axis perpendicular to the Z-axis. - Wash water may be injected into the
drum 30 by passing through thenozzle flow path 112a of theinjection nozzle 110 and theinjection flow path 120a of theinjection guide 120. Both theinjection flow path 120a and thenozzle flow path 112a may be angled to each other, which may cause direction change due to injection pressure of wash water. - For this reason, the
fastener 130 may be located at the exit end of theinjection flow path 120a of theinjection guide 120. That is, thefastener 130 may be positioned on theinjection guide 120 so as to be spaced apart, for example, in parallel, from theinjection nozzle 110 toward the exit end of theinjection flow path 120a. - The
gasket 80 may have through-holes 84 such that theinjection nozzle 110 and thefastener 130 penetrate thegasket 80, andsupport portions 85 protruding outward from thegasket 80 around the through-holes 84. - The
injection nozzle 110 and thefastener 130 may be respectively provided with the steppedportions gasket 80. Although the steppedportions holes 84, the steppedportions support portions 85 to allow theinjection device 100 to be supported by thegasket 80. - The stepped
portions injection device 100 may be supported by the outer surface of thegasket 80 and the inner surface of thegasket 80 may be supported by theupper guide 124. - A
positioning recess 86 may be formed in thesupport portion 85, and a fixingboss 118 formed at theinjection nozzle 110 or thefastener 130 may be seated in thepositioning recess 86. - The
positioning recess 86 is formed in one side of thesupport portion 85, and the fixingboss 118 is formed at an outer circumference of theinjection nozzle 110 or thefastener 130 to correspond to thepositioning recess 86. According to an embodiment, the fixingboss 118 is formed at theinjection nozzle 110. - The
positioning recess 86 and the fixingboss 118 function to prevent change in the position of theinjection nozzle 110, and to indicate a coupling position to assist theinjection device 100 in being coupled to thegasket 80 at an accurate position without direction change. -
FIG. 5 is a view illustrating a washing machine according to an embodiment,FIG. 6 is a view illustrating arrangement of an injection device according to an embodiment,FIG. 7 is a sectional view of the injection device according to an embodiment, andFIG. 8 is a perspective view of the injection device according to an embodiment. - A description related to the same parts as the above description is omitted hereinafter.
- A
bubble generation device 70 may be disposed below thetub 20 to generate and supply bubbles into thetub 20. - The
bubble generation device 70 may be connected to atransfer pipe 64 which may be in turn connected to thepump 61 such that wash water is supplied from thepump 61 to thetransfer pipe 64. Thebubble generation device 70 may be connected to aconnection pipe 13 which may be in turn connected to the top of thetub 20 such that air may be transferred to thebubble generation device 70. One end of theconnection pipe 13 may be connected to thebubble generation device 70, and the other end of theconnection pipe 13 positioned higher than the level of wash water received in thetub 20 such that interior air of thetub 20 may be suctioned into theconnection pipe 13. As such, bubbles may be generated and supplied into thetub 20 as wash water transferred from thepump 61 and air transferred through theconnection pipe 13 are mixed in thebubble generation device 70. - According to an embodiment, the
injection device 100 may include athird injection device 103. - The
pump 61 may be provided with acirculation pipe 65 connected to thethird injection device 103. Wash water supplied from thepump 61 through thecirculation pipe 65 may be directed to theinjection nozzle 110 of thethird injection device 103, and then may be directed into thedrum 30. - The
fastener 130 may be spaced apart from the Z-axis of theinjection nozzle 110 and functions to prevent change in the direction of theinjection device 110. In addition, thefastener 130 may function to transfer interior air of thetub 20 to thebubble generation device 70 through afastener flow path 130a formed therein. - That is, the other end of the
connection pipe 13 connected to thebubble generation device 70 may be coupled to thefastener 130 such that interior air of thetub 20 is suctioned into thebubble generation device 70. - One end of the
fastener flow path 130a may communicate with theconnection pipe 13 connected to thebubble generation device 70, and the other end of thefastener flow path 130a may be located at thebent surface 125 of theupper guide 124 to communicate with the interior of thetub 20. - Since the upper boundary of wash water injected through the
injection flow path 120a may be defined by thebent surface 125 and the end of thefastener flow path 130a may be located on thebent surface 125, it may be possible to prevent wash water from flowing backward through thefastener flow path 130a. - A washing machine having the above described configuration is additionally described.
- A description related to the same parts as those of the above described washing machine is omitted hereinafter.
- The washing machine includes the
cabinet 10, thetub 20 placed within thecabinet 10, thedrum 30 rotatably placed within thetub 20, thegasket 80 connecting thecabinet 10 and thetub 20 to each other, and theinjection device 100 penetrating thegasket 80. - The
injection device 100 includes theinjection nozzle 110, which includes thenozzle seat 116 supported by thesupport portion 85 protruding from thegasket 80 to prevent theinjection device 100 from being separated in the Z-axis corresponding to a longitudinal direction of theinjection nozzle 110 and thenozzle flow path 112a penetrating thegasket 80 to communicate the interior and the exterior of thegasket 80 with each other, and thefastener 130 spaced apart from theinjection nozzle 110 to prevent theinjection device 100 from being tilted to the X-axis or the Y-axis perpendicular to the Z-axis. - The
injection device 100 may include theinjection guide 120 to inject wash water introduced through thenozzle flow path 112a into thedrum 30. Theinjection nozzle 110 and thefastener 130 may be coupled to theinjection guide 120 at positions spaced apart from each other. - The
fastener 130 may be located closer to the exit end of theinjection guide 120 than theinjection nozzle 110. - The
fastener 130 includes thefastener flow path 130a communicating with the interior of thetub 20. Thebubble generation device 70 to generate and supply bubbles into thetub 30 may be provided, and interior air of thedrum 30 may be directed to thebubble generation device 70 through thefastener flow path 130a. - Hereinafter, the washing machine according to another embodiment is described.
- A description related to the same parts as the above description is omitted hereinafter.
-
FIG. 9 is a view illustrating a coupled state of an injection device according to an example not falling within the scope of the present invention. - An
injection device 210 may include aninjection nozzle 220, aninjection guide 224, and afastener 230. - The
fastener 230 may extend from theinjection nozzle 220 in a radial direction from an axialnozzle flow path 220a of theinjection nozzle 220. - A through-
hole 202 of agasket 200 may have a combined shape of the circular cross section of theinjection nozzle 220 and a bar-shaped cross section of thefastener 230. - According to an embodiment, it may be possible to prevent the
fastener 230 from being rotated about the Z-axis of theinjection nozzle 220, and consequently, to prevent change in the direction of theinjection nozzle 220. - Coupling of the injection device having the above described configuration is described.
- The
injection device 100 may be coupled and fixed to thegasket 80, and function to inject wash water from the exterior to the interior of thegasket 80 or to discharge interior air of thedrum 30 to the exterior of thegasket 80. - The
gasket 80 may have a through-hole 84 for insertion of theinjection device 100. According to an embodiment, a plurality of through-holes 84 may be provided for injection of both thefastener 130 and theinjection nozzle 110. - When the
fastener 130 and theinjection nozzle 110 are inserted into thegasket 80, theinjection nozzle 110 and the fixingboss 118 may be positioned to correspond to thepositioning recess 86 of thesupport portion 85. As the steppedportions support portions 85 and theupper guide 124 of theinjection guide 120 is supported by the inner surface of thegasket 80, it may be possible to prevent theinjection device 100 from being separated from thegasket 80. - Since the injection nozzle and the
fastener 130 are spaced apart from each other in parallel, thefastener 130 may prevent change in the direction of theinjection nozzle 110. - A technological advantage of an embodiment includes a washing machine having an improved configuration of an injection device and may ensure easy coupling of the injection device and prevent change in the direction of the installed injection device, thereby maintaining a constant wash water injection direction.
- Although the 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 principles of the invention, the scope of which is defined in the claims.
Claims (10)
- A washing machine comprising:a cabinet (10) having an opening;a tub (20) within the cabinet;a drum (30) rotatably arranged within the tub;a gasket (80) connecting the tub and the cabinet to each other to reduce vibration of the tub transmitted to the cabinet during rotation of the drum; andan injection device (100, 210) configured to inject wash water into the tub,wherein the injection device includes:an injection nozzle (110, 220) into which wash water is introduced, the injection nozzle penetrating the gasket (80); andan injection guide (120, 224) configured to guide wash water introduced through the injection nozzle so as to inject the wash water; characterised in that the injection device further includesa fastener (130, 230) penetrating the gasket to fix a position of the injection nozzle, the fastener comprising a fastener flow path (130a) communicating with the interior of the tub (20).
- The washing machine according to claim 1, wherein the fastener is spaced apart from the injection nozzle in parallel.
- The washing machine according to claim 1 or 2, wherein the fastener is located at an exit end of an injection flow path (220a) defined in the injection guide.
- The washing machine according to any one of the preceding claims, further comprising a bubble generation device (70) configured to generate and supply bubbles into the tub,
wherein interior air of the drum is guided to the bubble generation device through the fastener flow path. - The washing machine according to any one of the preceding claims, wherein at least one of the injection nozzle and the fastener includes a stepped portion (114, 134) protruding from an outer circumference thereof to allow the injection nozzle to be supported by an outer surface of the gasket.
- The washing machine according to claim 5, wherein the gasket includes:a through-hole (84) for penetration of at least a portion of the injection device, anda support portion (85) protruding outward from the gasket around the through-hole to support the stepped portion.
- The washing machine according to any one of the preceding claims, wherein the injection guide includes:an upper guide (124), by which the injection nozzle and the fastener are supported,a lower guide (122) facing a nozzle flow path defined in the injection nozzle, the lower guide being inclined toward the drum, anda lateral guide (126) connecting the upper guide and the lower guide to each other.
- The washing machine according to claim 7, wherein the upper guide includes a bent surface (125) inclined toward the drum and defining an upper boundary of wash water injected via the injection guide.
- The washing machine according to claim 8, wherein one end of a fastener flow path defined in the fastener is located on the bent surface.
- The washing machine according to any one of the preceding claims, wherein the injection device comprises at least one injection device located in a circumferential direction of the gasket.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361828285P | 2013-05-29 | 2013-05-29 | |
KR1020130061294A KR20140140435A (en) | 2013-05-29 | 2013-05-29 | Washing Machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2808435A1 EP2808435A1 (en) | 2014-12-03 |
EP2808435B1 true EP2808435B1 (en) | 2019-11-20 |
Family
ID=50828745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14170294.4A Active EP2808435B1 (en) | 2013-05-29 | 2014-05-28 | Washing machine comprising an injection nozzle |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140352363A1 (en) |
EP (1) | EP2808435B1 (en) |
KR (1) | KR20140140435A (en) |
CN (1) | CN104213372A (en) |
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KR102549142B1 (en) | 2016-01-26 | 2023-06-30 | 삼성전자주식회사 | Waching machine |
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KR102523465B1 (en) | 2017-11-09 | 2023-04-18 | 엘지전자 주식회사 | Laundary treating apparatus |
KR102643584B1 (en) * | 2016-12-28 | 2024-03-04 | 엘지전자 주식회사 | Washing machine |
KR102642445B1 (en) * | 2016-12-28 | 2024-02-28 | 엘지전자 주식회사 | Washing machine |
KR102486309B1 (en) * | 2017-06-28 | 2023-01-10 | 삼성전자주식회사 | Washing machine and diaphragm assembly of washing machine |
KR102573125B1 (en) * | 2017-12-28 | 2023-08-30 | 엘지전자 주식회사 | Washing machine |
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KR20200001496A (en) | 2018-06-27 | 2020-01-06 | 엘지전자 주식회사 | Washing machine |
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Also Published As
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US20140352363A1 (en) | 2014-12-04 |
EP2808435A1 (en) | 2014-12-03 |
KR20140140435A (en) | 2014-12-09 |
CN104213372A (en) | 2014-12-17 |
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