WO2018124762A2 - 세탁기 - Google Patents
세탁기 Download PDFInfo
- Publication number
- WO2018124762A2 WO2018124762A2 PCT/KR2017/015626 KR2017015626W WO2018124762A2 WO 2018124762 A2 WO2018124762 A2 WO 2018124762A2 KR 2017015626 W KR2017015626 W KR 2017015626W WO 2018124762 A2 WO2018124762 A2 WO 2018124762A2
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- WO
- WIPO (PCT)
- Prior art keywords
- nozzles
- gasket
- guide tube
- inlet
- nozzle
- Prior art date
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- 238000005406 washing Methods 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 235
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 77
- 238000010168 coupling process Methods 0.000 claims description 77
- 238000005859 coupling reaction Methods 0.000 claims description 77
- 238000002347 injection Methods 0.000 claims description 53
- 239000007924 injection Substances 0.000 claims description 53
- 239000007921 spray Substances 0.000 claims description 35
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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
- D06F39/08—Liquid supply or discharge 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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
-
- 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
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
-
- 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
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
-
- 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
-
- 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
- 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
- D06F39/083—Liquid discharge or recirculation arrangements
Definitions
- the present invention relates to a washing machine having a nozzle for ejecting water discharged from a tub and circulated along a circulation pipe into a drum.
- a washing machine is a device that separates contaminants from clothes, bedding, etc. (hereinafter referred to as 'laundry') by using chemical decomposition of water and detergent and physical action such as friction between water and laundry.
- Such a washing machine includes a tub containing water and a drum rotatably provided in the tub to accommodate laundry.
- Recent washing machines may be configured to circulate water discharged from the tub by using a circulation pump and to spray the circulated water into the drum through a nozzle.
- a conventional washing machine is usually provided with one or two nozzles, so the direction of injection through the nozzles is limited, so that the laundry was not evenly wet.
- the problem to be solved by the present invention is first, to provide a washing machine in which water discharged from the tub is injected into the drum at three or more different heights.
- the flow path and the three or more nozzles provide a washing machine installed in a gasket.
- the washing machine of the present invention includes a casing having an opening for injecting laundry on a front surface thereof, a tub disposed in the casing to hold laundry water, and a front surface of the washing machine opened to communicate with the inlet, and rotatably disposed in the tub.
- the container includes a tubular gasket communicating the drum, the inlet port and the inlet of the tub, a pump for pumping water discharged from the tub, an annular fixed to the gasket and guiding the water supplied from the pump.
- the guide tube may be fixed to an inner circumferential surface of a gasket, and the plurality of nozzles may be integrally formed with the guide tube.
- the gasket includes a casing coupling portion coupled to the circumference of the inlet, a tub coupling portion coupled to the inlet of the tub, a flat portion extending flatly from the casing coupling portion to the tub coupling portion, and from the flat portion. It is formed between the tub coupling portion, and may include a folding portion folded in response to the displacement of the tub, the guide tube may be disposed in the flat portion.
- the gasket may protrude outwardly from the flat part, and an accommodation groove may be formed on an inner circumferential surface of the flat part, and the guide tube may be accommodated at least partially in the accommodation groove.
- It may further include a connecting pipe extending outwardly from the inlet of the guide pipe and passing through the gasket, and connected to the circulation pipe for guiding water pumped by the pump at the outside of the gasket, the receiving groove, It may be formed in the upper region except for a predetermined lower region including a point through which the connecting tube passes.
- the gasket may further include a tubular receiving portion projecting from the inner circumferential surface of the flat portion and extending along the circumference, wherein the guide tube may be accommodated in at least a portion of the receiving tube.
- the guide tube and the receiving portion may be integrally formed by insert injection.
- the guide tube may be fixed on an outer circumferential surface of the gasket, and the plurality of nozzles may be disposed to penetrate the gasket, and may be connected to the guide tube at an outer side of the gasket.
- the pair of intermediate nozzles may be disposed above the center of the guide tube.
- the pair of intermediate nozzles may be formed symmetrically.
- the pair of lower nozzles may be disposed below the center of the guide tube.
- the pair of lower nozzles may be formed symmetrically.
- the plurality of nozzles each have an inlet formation surface having an inlet through which the water flows in through the guide tube, and a collision surface for guiding the discharged water through the inlet to proceed to the outlet opened toward the drum.
- the angle formed by the inlet formation surface and the collision surface may be gradually decreased in the order of the upper nozzle, the intermediate nozzle and the lower nozzle.
- the inlet may be disposed at the lowest point of the guide tube.
- the plurality of nozzles may be integrally formed with the guide tube.
- the pump may be capable of speed control.
- the plurality of nozzles may be formed in the gasket, and the guide tube may be embedded in the gasket.
- the gasket includes a casing coupling portion coupled to the inlet of the casing, a tub coupling portion coupled to the inlet of the tub, an extension portion extending between the casing coupling portion and the tub coupling portion, and the extension portion. It protrudes convexly outward from the, may include a guide tube receiving portion for receiving the guide tube on the inside.
- the extension portion may include a flat portion extending flat from the casing coupling portion toward the tub coupling portion, and a folding portion formed between the flat portion and the tub coupling portion, and folded to correspond to the displacement of the tub.
- the folding portion may include an inner diameter portion bent from the flat portion to the casing coupling portion, and an outer diameter portion bent from the inner diameter portion to the tub coupling portion, and the flow path accommodation portion may be formed at the outer diameter portion.
- the guide tube may include a plurality of nozzle feed ports that protrude inwardly in the radial direction from the annular flow path, respectively corresponding to the plurality of nozzles, wherein the gasket protrudes from an inner circumferential surface of the outer diameter portion, One end is in communication with the guide tube accommodating portion and the other end is formed with a plurality of port insertion pipe connected to the corresponding nozzle, the nozzle feed port may be inserted into each.
- the washing machine may further include a circulation pipe for guiding water pumped by the pump, and the guide pipe has one inlet formed at one end thereof, protrudes from the one end, and passes through the gasket to be connected to the circulation pipe. It may further include a circulation pipe connection port.
- the guide tube may further include at least one fixing pin which protrudes from an outer circumferential surface of the annular flow path and passes through the gasket to protrude out of the gasket.
- the at least one fixing pin may be formed at an upper end, a left end, and a right end of the annular flow path, respectively.
- the pair of intermediate nozzles may be disposed above the center of the annular flow path.
- the pair of intermediate nozzles may be formed symmetrically.
- the pair of lower nozzles may be disposed below the center of the annular flow path.
- the pair of lower nozzles may be formed symmetrically.
- Each of the plurality of nozzles may include a collision surface that guides the water discharged from the guide tube and then proceeds to the outlet of the nozzle opened toward the drum.
- the inlet may be connected to the lowest point of the annular flow path.
- the pump may be capable of speed control.
- the guide tube and the gasket may be integrally formed by insert molding.
- the washing machine of the present invention is provided with an annular guide tube for guiding the circulating water to be injected into the drum, the guide tube is firmly fixed to the gasket, even if vibration is generated by the rotation of the drum, There is an effect that the guide tube is not easily separated from the gasket.
- the water discharged from the tub is sprayed into the drum in various directions at three or more different heights, there is an effect that can be three-dimensional washing.
- FIG. 1 is a perspective view showing a washing machine according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view of the washing machine shown in FIG.
- FIG. 3 is an enlarged view of a portion indicated by a dotted line in FIG. 2.
- FIG. 4 shows an assembly comprising a gasket and a circulating water injection mechanism.
- FIG. 5 illustrates the circulating water injection mechanism shown in FIG. 4.
- FIG. 6 is an enlarged view of the guide tube and the nozzles formed thereon.
- FIG. 7 illustrates a structure in which nozzles are installed in a gasket, (a) shows an upper nozzle cut along the line AA ′ of FIG. 5, and (b) shows an intermediate nozzle along the line BB ′ of FIG. 5. Incision, (c) shows that the lower nozzle is cut along the line C-C 'of FIG.
- Fig. 8 schematically shows the drum looking down from the top (a) and the front view (b).
- FIG. 9 illustrates the spray pattern of the upper nozzle viewed along the YZ (U) shown in FIG. 8.
- FIG. 10 is a view of the injection pattern of the upper nozzle along XY (R) shown in FIG. 8 and a view along ZX (M) shown in FIG. 8.
- FIG. 11 illustrates a view of the jet pattern of the intermediate nozzles along YZ (U) shown in FIG. 8.
- FIG. 12 shows the spray pattern of the first intermediate nozzle along the XY (R) shown in FIG. 8 (a), and the spray patterns of the intermediate nozzles 73b (1) and 73b (2), respectively, in FIG. (B) viewed along ZX (F), (c) viewed along ZX (M), and (d) viewed along ZX (R).
- FIG. 13 illustrates a view of the spray patterns of the lower nozzles along YZ (U) shown in FIG. 8.
- FIG 14 is a view of the spray pattern of the first lower nozzle along the XY (R) shown in Figure 8 (a), a view of the spray pattern of the lower nozzles along the ZX (F) shown in Figure 8 (b), It shows what looked along ZX (M) (c) and what looked along ZX (R) (d).
- FIG. 15 illustrates an assembly of a gasket and a circulating water jetting mechanism according to a second embodiment of the present invention.
- FIG. 16 is an enlarged perspective view of the circulating water injection mechanism shown in FIG. 15 and the cross section of the upper nozzle and the connection pipe.
- FIG. 17 is a cross-sectional view illustrating a structure in which a circulation water injection mechanism is installed in a gasket according to the third embodiment of the present invention.
- FIG. 18 illustrates an assembly of a gasket and a circulating water jetting mechanism according to a fourth embodiment of the present invention.
- FIG. 19 illustrates the circulating water injection mechanism shown in FIG. 18.
- FIG. 20 is a cross-sectional view of the upper nozzle in a state where the circulating water injection mechanism shown in FIG. 18 is installed in the gasket.
- FIG. 21 shows a part of a washing machine according to another embodiment of the present invention.
- FIG. 22 is a front view of the assembly of the gasket and guide tube shown in FIG. 21.
- FIG. 23 is a rear view of the assembly shown in FIG. 22.
- FIG. 24 is an enlarged view of a portion A of FIG. 23.
- 25 is a front view of the guide tube.
- FIG. 26 is a right side view of the assembly shown in FIG. 22.
- FIG. 27 is a cross-sectional view of FIG. 26.
- FIG. 28 is a cross-sectional view taken along the line II of FIG. 21.
- FIG. 29 is a cross-sectional view taken along line II-II of FIG. 21.
- FIG. 30 is a cross-sectional view taken along line III-III of FIG. 21.
- FIG. 1 is a perspective view showing a washing machine according to an embodiment of the present invention.
- 2 is a cross-sectional view of the washing machine shown in FIG. 3 is an enlarged view of a portion indicated by a dotted line in FIG. 2.
- 4 shows an assembly comprising a gasket and a circulating water injection mechanism.
- FIG. 5 illustrates the circulating water injection mechanism shown in FIG. 4.
- 6 is an enlarged view of the guide tube and the nozzles formed thereon.
- 7 illustrates a structure in which nozzles are installed in a gasket, (a) shows an upper nozzle cut along the line AA ′ of FIG. 5, and (b) shows an intermediate nozzle along the line BB ′ of FIG. 5. Incision, (c) shows that the lower nozzle is cut along the line C-C 'of FIG.
- the casing 10 forms an appearance of a washing machine, and an inlet 12h through which laundry is introduced is formed on the front surface of the casing 10.
- the casing 10 may include a cabinet 11 having an open front surface, a cabinet 11 having a left side, a right surface, and a rear surface, and a front panel 12 coupled to an opened front surface of the cabinet 11 and having an inlet 12h formed therein. Can be.
- the bottom and top surfaces of the cabinet 11 are open, and a horizontal base (not shown) supporting the washing machine may be coupled to the bottom surface.
- the casing 10 is a top plate 13 covering the open upper surface of the cabinet 11, and the control panel 14 disposed on the upper side of the front panel 12, and constitutes a part of the front surface of the casing 10. ) May be further included.
- a tub 31 containing water may be disposed in the casing 10.
- the tub 31 has an inlet formed on the front surface thereof so that laundry can be put therein, and the inlet communicates with the inlet 12h formed in the casing 10 by the gasket 60 (1).
- the door 20 that opens and closes the inlet 12h may be rotatably coupled to the casing 10.
- the door 20 may include a door frame 21 having an approximately central portion opening, rotatably coupled to the front panel 12, and a window 22 installed at the opened central portion of the door frame 21. .
- the gasket 60 (1) is for preventing the water contained in the tub 31 from leaking.
- the front end is overlapped with the front (or front panel 12) of the casing 10, the rear end is coupled to the periphery of the inlet of the tub 31, and between the front end and the rear end extends in a tubular form.
- the gasket 60 (1) may be made of a flexible or elastic material.
- the gasket 60 (1) may be made of natural rubber or synthetic resin.
- the gasket 60 (1) includes a casing coupling portion 61 coupled around the inlet 12h of the casing 10, and a tub coupling portion 62 coupled around the inlet of the tub 31. ) And an extension portion 63 extending from the casing coupling portion 61 to the tub coupling portion 62.
- the periphery of the inlet 12h is rolled outward, and the casing coupling part 61 is fitted in the recessed part formed by the outer peripheral surface of this rolled-up part.
- the casing coupling portion 61 is formed with an annular groove 61r in which a wire is wound, and after the wire is wound along the groove 61r, both ends of the wire are bound so that the casing coupling portion 61 is inserted into the inlet 12h. ) Is firmly fixed around it.
- the tub 31 has the inlet circumference rolled outward, and the tub coupling portion 62 is fitted into the concave portion formed by the outer circumferential surface of the curled portion.
- the tub coupling portion 62 is formed with an annular groove 62r in which a wire is wound, and after the wire is wound along the groove 62r, both ends of the wire are bound so that the tub coupling portion 62 is connected to the tub 31. Is firmly coupled around the inlet.
- the casing coupling portion 61 is fixed to the front panel 12, but the tub coupling portion 62 is displaced according to the movement of the tub 31. Therefore, the extension portion 63 should be able to be modified in response to the displacement of the tub coupling portion 62.
- the gasket 60 (1) has a tub 31 in an eccentric direction in a section (or an extension 63) between the casing coupling portion 61 and the tub coupling portion 62. As it moves to the fold folded portion 65 may be formed.
- extension portion 63 is formed with a flat portion 64 extending evenly from the casing coupling portion 61 toward the tub coupling portion 62, and the folding portion 65 is a flat portion ( 64 may be formed between the tub coupling portion 62.
- the casing engaging portion 61 is bent outward from the front end of the flat portion 64 and in the state in which the door 20 is closed, the outer door tight portion 68 in close contact with the rear surface of the door 20 at the outside of the inlet 12h. ) May be included.
- the casing coupling portion 61 may have a groove 61r formed at a portion extending from the outer end of the outer door contact portion 68.
- the casing coupling portion 61 is bent inward from the front end of the flat portion 64 and the door 20 is closed, and the back surface of the door 20 (preferably, the window 22) is provided inside the inlet 12h. ) May further include an inner door contact part 66 contacted with the inner door.
- the drum 40 is vibrated during the rotation process (that is, the center of rotation C of the drum 40 is moved), and accordingly, the center line of the tub 31 (approximately, the center of rotation C of the drum 40 and The same.) Move, and the movement direction (hereinafter, referred to as "eccentric direction") has a radial component.
- the folds 65 are folded or unfolded when the tub 31 moves in the eccentric direction.
- the folded portion 65 is bent toward the casing coupling portion 61 from the flat portion 64 and the tub coupling portion is bent toward the tub coupling portion 62 at the other end of the first portion 652.
- the fold 65 may be formed over the entire circumference of the gasket 60 (1).
- the tub 31 is rotatably provided with a drum 40 in which laundry is accommodated.
- the drum 40 accommodates laundry, and is arranged such that an inlet through which the laundry is put is located at the front, and is rotated about an approximately horizontal rotation center line C.
- the term "horizontal” is not a term used in a mathematically exact sense. That is, as in the embodiment, when the rotational center line C is inclined at a predetermined angle (for example, 5 degrees or less) with respect to the horizontal, it may be said to be approximately horizontal because it is also close to the horizontal.
- a driving unit 38 for rotating the drum 40 may be further provided, and the driving shaft 38a rotated by the driving unit 38 may be coupled to the drum 40 by passing through the rear portion of the tub 31. .
- the drive unit 38 is configured to include a direct type motor, the stator of the motor is fixed to the rear of the tub 31, the drive shaft 38a is rotated together with the rotor of the motor drum 40 Rotate directly.
- the tub 31 may be supported by a damper 16 installed at the bottom of the casing 10. Vibration of the tub 31 caused when the drum 40 rotates is attenuated by the damper 16.
- a water supply hose (not shown) for guiding water supplied from an external water source, such as a faucet, to the tub 31, and a water supply valve (not shown) for controlling the water supply hose may be provided.
- a tub 31 may be provided with a drain hole for discharging water, and a drainage bellows 17 may be connected to the drain hole.
- a pump 36 for pumping the water discharged to the drainage bellows 17 may be provided.
- the pump 36 may selectively perform the function of pumping the water discharged through the drainage bellows 17 into the drain pipe 19, and the function of pumping the water discharged into the circulation pipe 18 to be described later.
- the pump 36 may include an impeller (not shown) for pumping water, a pump housing (not shown) in which the impeller is accommodated, and a pump motor (not shown) for rotating the impeller.
- the pump housing includes an inflow port (not shown) through which the water flows through the drainage bellows 17, a drain discharge port (not shown) for discharging the water conveyed by the impeller to the drain pipe 18, and the impeller.
- a circulating water discharge port (not shown) for discharging the water conveyed by the circulation pipe 18 may be formed.
- the pump motor may be capable of forward / reverse rotation. Depending on the direction in which the impeller is rotated, water may be discharged through the drain discharge port, or water may be discharged through the circulation water discharge port.
- Such a configuration may be implemented by appropriately designing the structure of the pump housing, and this technique is already known in Korean Patent Laid-Open Publication No. 10-2013-0109354 and the like, and a detailed description thereof will be omitted.
- the inlet of the circulation pipe 18 is connected to the circulation water discharge port, and the outlet is connected to the circulation water injection mechanism 70 (1) described later.
- a circulation pump for pumping water discharged from the tub 31 into the circulation pipe 18 and a drain pump for pumping water discharged from the tub 31 into the drain pipe 19 may be separately provided.
- the circulation pump may be operated according to a preset algorithm (for example, during washing) or the drain pump may be operated (for example, during drainage).
- the pump 36 has a variable flow rate (or discharge water pressure).
- the pump motor constituting the pump 36 may be a variable speed motor capable of controlling the rotation speed.
- BLDC motor Batteryless Direct Current Motor
- a driver for controlling the speed of the motor may be further provided, and the driver may be an inverter driver.
- the inverter driver converts AC power to DC power and inputs it to the motor at a target frequency.
- a control unit for controlling the pump motor may be further provided.
- the controller may include a proportional-integral controller (PI controller), a proportional-integral-derivative controller (PID controller), and the like.
- the controller may receive an output value (for example, an output current) of the pump motor as an input, and control the output value of the driver so that the rotation speed of the pump motor follows a predetermined target rotation speed based on this.
- control unit may control not only the pump motor, but also the overall operation of the washing machine, and the control of each unit mentioned below will be understood to be made by the control of the control unit.
- the circulating water injection mechanism 70 (1) is fixed to the gasket 60 (1) and forms a guide tube for forming an annular flow path for guiding water supplied from the pump 36. And a plurality of nozzles 73a, 73b (1), 73b (2), and 73c which are disposed in the guide tube 71 and inject the water supplied through the guide tube 71 into the drum 40. 1), 73c (2)).
- the guide tube 71 and the plurality of nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2) will be described as an example, but are not necessarily limited thereto.
- the plurality of nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2) are disposed below the upper nozzle 73a for spraying the circulating water downward and below the upper nozzle 73a. And spraying the circulating water downward, but a pair of intermediate nozzles (73b (1), 73b (2)) to spray deeper into the drum 40 than the upper nozzle (73a), and a pair of intermediate nozzles (73b ( 1), and may be disposed below the 73b (2), and may include a pair of lower nozzles 73c (1) and 73c (2) that spray the circulating water upward.
- A, B, and C denote positions of the upper nozzle 73a, the intermediate nozzle 73b (1), and the lower nozzle 73c (1), respectively.
- the shapes of the nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2) are substantially the same, but the spraying direction is different depending on the position disposed on the guide tube 71. . Therefore, the configuration of the upper nozzle 73a described below with reference to FIGS. 6 to 7 can be applied to other nozzles 73b (1), 73b (2), 73c (1), and 73c (2). have.
- the upper nozzle 73a is a circulation in which the inlet formation surface 731 in which the inlet 73h1 which communicated with the guide tube 71 was formed, extended from the lower side of the inlet formation surface 731, and was sprayed through the inlet 73h1.
- a collision surface 733 in which the numbers collide may be included.
- the upper nozzle 73a extends from the left side of the inlet formation surface 731, and the lower side is connected to the collision surface 733 to define a left boundary of the water flow flowing along the collision surface 733.
- 732 (L) and the right side extending from the right side of the inlet formation surface 731, the bottom side being connected to the collision surface 733, and defining the right boundary of the water flow flowing along the collision surface 733 ( 732 (R)).
- the upper nozzle 73a is a surface facing the collision surface 733, and each of the upper sides of the inlet formation surface 731, the left surface 732 (L), and the right surface 732 (R). It may further include a top surface connecting to each other.
- the angle ⁇ formed between the left side 732 (L) and the right side 732 (R) of the nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2). Is approximately 45 degrees to 55 degrees, preferably 50 degrees, but is not necessarily limited thereto.
- the outlet of the upper nozzle 73a may be defined as an area surrounded by the collision surface 733, the left side 732 (L), the right side 732 (R), and the ends of the upper surface.
- the drum 40 is opened to face the inside of the drum 40.
- a plurality of protrusions 733a may be arranged in the transverse direction (or the width direction of the water flow) at an end side of the collision surface 733 constituting the exit or a portion adjacent to the exit.
- Water flows traveling along the collision surface 733 strikes the projection 733a and is then injected through the outlet.
- the flow of water jetted through the upper nozzle 73a is relatively thick, while the portion injected through the projections 733a is thick, whereas the portion sprayed after passing over the projections 733a is relatively thin. In other words, a thin film of water spreads between the thick main streams.
- the guide tube 71 may be formed at the lower portion of the inlet (71h, see (a) of Figure 5) connected to the circulation pipe 18.
- the pair of intermediate nozzles 73b (1) and 73b (2) may be formed above the inlet 71h and disposed on the left and right sides of the inlet 71h, respectively.
- the pair of intermediate nozzles 73b (1), 73b (2) are arranged symmetrically with respect to the vertical line OV passing through the center of the guide tube 71 (O, see FIG. 5B).
- the injection direction of each intermediate nozzle 73b (1), 73b (2) is also symmetrical with respect to the vertical line OV.
- the pair of intermediate nozzles 73b (1), 73b (2) may be located above the center O of the guide tube 71 (for reference, the OH shown in FIG. 5 passes through the center O). Horizon.) Since the intermediate nozzles 73b (1) and 73b (2) inject the circulating water downward, when the drum 40 is viewed from the front, the circulating water is the center of the drum 40 at the inlet side of the drum 40. It passes through the upper region than (C), and is injected in a downwardly inclined form as it goes deeper into the drum 40.
- the pair of lower nozzles 73c (1) and 73c (2) are disposed above the inlet 71h but below the pair of intermediate nozzles 73b (1) and 73b (2).
- the pair of lower nozzles 73c (1) and 73c (2) may be disposed on both the left and right sides of the inlet 71h, respectively, preferably, symmetrically with respect to the vertical line OV,
- the injection direction of each intermediate nozzle 73b (1), 73b (2) is symmetrical with respect to the perpendicular
- the pair of lower nozzles 73c (1) and 73c (2) may be located below the center O of the guide tube 71. Since the lower nozzles 73c (1) and 73c (2) spray the circulating water upwards, when the drum 40 is viewed from the front, the center of the drum 40 is located at the inlet side of the drum 40. C) is passed through the lower region, and is injected in the inclined upward form as the depth goes into the drum 40.
- the upper nozzle 73a is preferably disposed on the vertical line OV, and the shape of the circulating water sprayed through the upper nozzle 73a is symmetrical with respect to the vertical line OV.
- the circulating water injection mechanism 70 (1) may further include a connection pipe 72 protruding outward from the inlet 71h of the guide pipe 71.
- the circulation pipe 18 may be connected to the connection pipe 72.
- the connecting tube 72 is preferably formed on the vertical line OV.
- the connection tube 72 may be formed integrally with the guide tube 71.
- the guide tube 71 may be fixed to the inner circumferential surface of the gasket 60 (1).
- the guide tube 71 may be made of harder than the gasket 60 (1) as an injection of the synthetic resin material.
- the outer diameter of the guide tube 71 may be of a size that fits within the gasket 60 (1), in this case, the position of the guide tube 71 by the elasticity of the soft gasket (60 (1)) without a separate fixing member Can be fixed.
- a protrusion for preventing the removal of the guide tube 71 may be further formed in the gasket 60 (1).
- the guide tube 71 Since the guide tube 71 is fixed to the inner circumferential surface of the gasket 60 (1), even if the tub 31 vibrates, the circulating water injection mechanism 70 (1) is not easily removed from the gasket 60 (1). In addition, the guide tube 71 is prevented from colliding with the structures outside the tub 32 (eg, the balancers 81, 82, 83).
- the guide tube 71 may be driven by the hydraulic pressure transferred along the guide tube 71 or from the nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2). ) Is in close contact with the inner circumferential surface of the gasket 60 (1), and has an effect of being firmly fixed.
- the gasket 60 (1) may be formed with a through hole (not shown) through which the connection pipe 72 passes. After inserting the connecting tube 72 to pass through the through hole inside the gasket 60 (1), the guide tube 71 may be fitted to the annular inner circumferential surface of the gasket 60 (1).
- the circulation pipe 18 may be fitted to one end of the connection pipe 72 protruding to the outside of the gasket 60 (1) through the through hole.
- the circulation pipe 18 may be made of a soft hose, and may be fixed by inserting a clamp on the outer circumferential surface of the hose or winding the wire while being extrapolated to the circulation pipe 18.
- the circulating water supplied through the circulation pipe 18 flows into the guide pipe 71 and then branches to both sides and rises along the flow path, and is sequentially sprayed from the nozzles located below.
- the operating pressure of the pump 36 can be controlled to the extent that the circulating water can reach the upper nozzle 73a.
- the injection pressure of the nozzles (73a, 73b (1), 73b (2), 73c (1), 73c (2)) can be varied.
- the speed of the pump motor is controlled within the range in which injection is performed by all nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2).
- the drum 40 is stuck to the inner side of the drum 40 with the laundry.
- Filtration motion (rotation) may be performed along with the rotation.
- the filtration motion may be performed a plurality of times.
- the acceleration of the pump motor may be synchronized with the start of each filtration motion, and the deceleration may be synchronized with the timing of braking the drum 40 for the end of each filtration motion.
- the pump motor is also accelerated so that the laundry is completely attached to the drum 40 and rotated together with the drum 40 (that is, the drum 40 of the drum 40). Even if the laundry reaches its peak by rotation, the centrifugal force is greater than gravity, so that the laundry does not drop), and sprayed through the nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2) Abs can be the best.
- the circulating water jetted from the nozzles 73a, 73b (1), 73b (2), 73c (1), 73c (2) drum To the deepest portion of 40 and, in particular, the circulating water sprayed through intermediate nozzles 73b (1), 73b (2) compared with other nozzles 73a, 73c (1), 73c (2) By doing so, it can reach the deepest place of the drum 40.
- the intermediate nozzles 73b (1) and 73b (2) form an angle ⁇ 1 with the upper nozzle 73a, and the lower nozzle 73c (1).
- 73c (2) may form an angle ⁇ 2 with the intermediate nozzles 73b (1) and 73b (2).
- ⁇ 1 may be approximately 50 to 60 degrees, preferably 55 degrees, but is not necessarily limited thereto.
- ⁇ 2 is approximately 55 to 65 degrees, preferably 60 degrees, but is not necessarily limited thereto.
- FIG. 7 shows the spray angles of the nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2) (each nozzle 73a, 73b (1), 73b (2), 73c ( 1), the angle formed by the inlet formation surface 731 and the collision surface 733 of 73c (2)) is displayed.
- the spray angles of the nozzles 73a, 73b (1), 73 (2), 73c (1), and 73c (2) may be measured by the nozzles 73a, 73b (1), and 73 (2).
- 73c (1), 73c (2)) are determined according to where they are located on the guide tube 71.
- the injection angle ⁇ 1 of the upper nozzle 73a is the largest, the injection angle ⁇ 2 of the intermediate nozzles 73b (1), 73b (2) is next, and the lower nozzle 73c (1),
- the injection angle ⁇ 3 of 73c (2) is the smallest.
- ⁇ 1 is 55 degrees and ⁇ 2 is 60 degrees
- the spray angle ⁇ 1 of the upper nozzle 73a is approximately 46 degrees
- the spray angle ⁇ 2 of the intermediate nozzles 73b (1) and 73b (2) is approximately 32 degrees.
- the injection angle (beta) 3 of lower nozzle 73c (1), 73c (2) is about 27 degree
- the guide tube 71 may be disposed on the inner circumferential surface of the flat portion 64.
- the portion in which the deformation is made in response to the vibration of the tub 31 is mainly a folding portion 65, and the flat portion 64 maintains its shape almost in a circular shape, and the folding portion ( It is only translated in accordance with the variation of 65). Therefore, by arranging the gasket 60 (1) in the flat portion 64, which is a portion of which is less deformable and may be deformed, the influence on the function of the gasket 60 (1) is minimized, and the guide tube An advantage can also be obtained from the aspect of rigid maintenance of (71).
- the gasket 60 (1) may further include a direct nozzle 42 and a steam nozzle 44.
- the direct nozzle 42 sprays water (ie, direct water) supplied from an external water source (for example, a faucet) into the drum 40.
- the flat portion 64 of the gasket 60 (1) may be formed with a first installation pipe 67 to which the straight nozzle 42 is installed.
- the first installation pipe 67 protrudes outward from the gasket 60 (1) from the circumference of the first through hole formed in the flat portion 64, and the direct inflow pipe 42 a of the straight nozzle 42 is the gasket 60. It protrudes outward through the 1st installation pipe
- a water supply pipe (not shown) for supplying water may be connected to the water inflow pipe 42a.
- Washing machine may include a steam generator (not shown) for generating steam.
- the steam nozzle 44 injects steam generated by the steam generator into the drum 40.
- a second installation pipe 69 may be formed on which the steam nozzle 44 (see FIG. 4) is installed.
- the second installation pipe 69 protrudes out of the gasket 60 (1) from the circumference of the second through hole formed in the flat portion 64, and the steam inlet pipe 44 a of the steam nozzle 44 is the gasket 60. It protrudes outward through the 2nd installation pipe 69 from the inside of (1).
- a steam flow pipe (not shown) for guiding steam generated from the steam generator may be connected to the steam inflow pipe 44a.
- the upper nozzle 73a is located further forward than the straight nozzle 42, and according to the embodiment, is substantially the same when viewed from the side, as shown in FIG. Can be placed on board.
- the circulating water injected from the upper nozzle 73a should not interfere with the direct nozzle 42, and in this respect, the outlet (or injection hole) of the upper nozzle 73a is located below the direct nozzle 42.
- the tangent of the collision surface 733a is extended at least, it is good not to contact the direct nozzle 42.
- the steam nozzle 44 is installed in the first installation pipe 67, and the direct nozzle 42 may be installed in the second installation pipe 69.
- the outlet of the upper nozzle 73a is located below the steam nozzle 44, or at least does not meet the steam nozzle 44 even if the tangent of the collision surface 733a extends.
- 733a, 733b, and 733c shown in FIG. 7 are the impingement surfaces 733 of the upper nozzle 73a, the intermediate nozzle 73b (1), and the lower nozzle 73c (1), respectively, 732a (L), 732b (L) and 732c (L) are the left surface 732 of the upper nozzle 73a, the intermediate nozzle 73b (1), and the lower nozzle 73c (1), respectively, and 73ah, 73bh, and 73ch are upper parts, respectively.
- the inlet of the nozzle 73a, the intermediate nozzle 73b (1), and the lower nozzle 73c (1) is shown.
- Fig. 8 schematically shows the drum looking down from the top (a) and the front view (b). Referring to FIG. 8, terms to be used below are defined.
- FIG. 8 shows the front, front, and left directions of the drum 40 as indicated by + Y, + X + Z, respectively, and ZX (F) is approximately at the front of the drum 40.
- ZX (M) is the ZX plane at approximately the median depth of the drum 40
- ZX (R) is the ZX plane near the rear portion 420 of the drum 40. It is displayed.
- XY (R) shows the XY plane located in the right end of the drum 40
- XY (C) shows the XY plane (or the vertical plane) which the center C of the drum 40 belongs to. It is displayed.
- YZ (M) shows the YZ plane of the intermediate height of the drum 40
- YZ (U) is the YZ plane located above YZ (M)
- YZ (L) is the YZ (M) The YZ plane located on the lower side is shown.
- FIG. 9 illustrates the spray pattern of the upper nozzle viewed along the YZ (U) shown in FIG. 8.
- FIG. 10 is a view of the injection pattern of the upper nozzle along XY (R) shown in FIG. 8 and a view along ZX (M) shown in FIG. 8.
- water flow injected through the upper nozzle 73a is sprayed in the form of a water film having a predetermined thickness, and the thickness of the water film is on the upper side. It may be defined between the boundary UDL and the lower boundary LDL.
- the water flow shown in the drawings indicates a surface constituting the upper boundary UDL, and the surface constituting the lower boundary LLD is omitted.
- the water flow shown by the dotted line in (a) of FIG. 10 represents a case where the water pressure is lowered (ie, the rotational speed of the pump motor is reduced) than the case represented by the solid line (maximum water pressure). As the water pressure decreases, the strength of the water flow is also weakened, so it can be seen that the area affected by the water flow transitions to the inlet side of the drum 40.
- the window 22 protrudes more toward the drum 40 than the upper nozzle 73a. Therefore, when the rotational speed of the pump motor is lower than a predetermined level, the water flow injected through the upper nozzle 73a causes the window ( 22), in this case, there is an effect that the window 22 is washed.
- the water flow injected through the upper nozzle 73a is symmetrical with respect to XY (C) and does not reach the rear portion 420 of the drum 40.
- the injection direction of the upper nozzle 73a is determined according to the configuration of the collision surface 733 (for example, the angle formed between the collision surface 733 and the inlet formation surface 731). Even if it raises continuously, a sprayed area cannot escape a fixed area. 9 to 14 show the flows of water flowing at maximum intensity through the nozzles.
- the upper nozzle 73a may be configured to spray the circulating water toward the side portion 410 of the drum 40. Specifically, the upper nozzle 73a sprays the circulating water downward toward the inside of the drum 40. At this time, the injected circulating water reaches the side portion 410, but does not reach the rear portion 420. Preferably, the water stream injected through the upper nozzle 73a touches the side portion 410 of the drum 40 in an area beyond half the depth of the drum 40 (see FIG. 10 (b)).
- FIG. 11 illustrates a view of the jet pattern of the intermediate nozzles along YZ (U) shown in FIG. 8.
- FIG. 12 shows the spray pattern of the first intermediate nozzle along the XY (R) shown in FIG. 8 (a), and the spray patterns of the intermediate nozzles 73b (1) and 73b (2), respectively, in FIG. (B) viewed along ZX (F), (c) viewed along ZX (M), and (d) viewed along ZX (R).
- a pair of intermediate nozzles 73b (1) and 73b (2) are disposed on one side (or the first region) of the left and the right side with respect to the XY (C) plane and the other side.
- a second intermediate nozzle 73b (1) for injecting circulating water toward the second region and a second part disposed on the other side with reference to the XY (C) plane and injecting circulating water toward the one side
- Intermediate nozzle 73b (2) may be included.
- the first intermediate nozzle 73b (1) and the second intermediate nozzle 73b (2) are disposed symmetrically with respect to the XY (C) plane, and each of the intermediate nozzles 73b (1) and 73b (2) The injection directions are also symmetrical to each other.
- the water flow injected through each of the intermediate nozzles 73b (1) and 73b (2) is opposite to the one side NSL and the one side NSL adjacent to the side where the nozzle is disposed. It has a width defined between.
- One side border may be located below the other side (FSL), preferably, one side (NSL) meets the side portion 410 of the drum 40, the other side (FSL) is one side ( The side portion 410 of the drum 40 at a higher position than NSL). That is, the water flow injected by the intermediate nozzles 73 (1) and 73b (2) constitutes an inclined water film having a form downward from the other side to one side.
- the water flow injected through each of the intermediate nozzles 73 (1) and 73b (2) includes a point where one side boundary NSL meets the side portion 410 of the drum 40, and the other side boundary FSL is a side portion of the drum.
- An area formed between the point of contact with 410 is reached, and the area includes an area that meets the rear portion 420 of the drum 40. That is, in the section where the water flow meets the drum 40, one side boundary NSL meets the side part 410 of the drum 40 from the point where the other side boundary FSL meets the side part 410 of the drum 40. It passes through the rear portion 420 of the drum 40 while traveling downward toward the point.
- the first intermediate nozzle 73b (1) is disposed on the left side (hereinafter referred to as the "left region") with respect to the XY (C) plane
- the second intermediate nozzle 73b (2) is defined as XY ( C)
- the injection form of the intermediate nozzles 73b (1) and 73b (2) will be described in more detail, taking an example of being disposed on the right side (hereinafter referred to as the "right region") with respect to the plane.
- the first intermediate nozzle 73b (1) sprays the circulating water toward the right region. That is, the water flow injected through the first intermediate nozzle 73b (1) is not a symmetrical form with respect to the XY (C) plane, but a form that is deflected to the right.
- the left boundary NSL, one boundary NSL of the water flow FL injected through the first intermediate nozzle 73b (1) is located below the right boundary FSL or the other boundary FSL, Meets the side portion 410 of the drum 40.
- the right boundary (FSL, or the other boundary (FSL)) of the water flow FL injected through the first intermediate nozzle 73b (1) also meets the side portion 410 of the drum 40.
- the right boundary (FSL) of the water flow FL injected through the first intermediate nozzle 73b (1) is preferably at the side portion of the drum 40 at a position higher than the center C of the drum 40. 410).
- the section in which the water flow FL injected through the first intermediate nozzle 73b (1) meets the drum 40 is leftward from the point where the right boundary FSL meets the side portion 410 of the drum 40. Proceeding downward, it meets with the rear portion 420 of the drum 40, and again meets the side portion 410 of the drum 40 reaches a point where the left boundary (NSL) meets the side portion 410 of the drum 40.
- the second intermediate nozzle 73b (2) sprays the circulating water toward the left region.
- the water flow injected through the second intermediate nozzle 73b (2) is not symmetrical with respect to the XY (C) plane, but is deflected to the right.
- the right boundary NSL or one side NSL of the water flow FR injected through the second intermediate nozzle 73b (2) is located below the left boundary FSL or the other boundary FSL. And meets the side portion 410 of the drum 40.
- the left boundary (FSL, or other boundary (FSL)) of the water flow FR injected through the second intermediate nozzle 73b (2) also meets the side portion 410 of the drum 40.
- the left boundary (FSL) of the water flow FR injected through the second intermediate nozzle 73b (2) is preferably at the side portion of the drum 40 at a position higher than the center C of the drum 40. 410).
- the section in which the water flow FR injected through the second intermediate nozzle 73b (2) meets the drum 40 is moved to the right from the point where the left boundary FSL meets the side portion 410 of the drum 40. Proceeding downward, it meets the rear part 420 of the drum 40, and again meets the side portion 410 of the drum 40 reaches a point where the right boundary (NSL) meets the side portion 410 of the drum 40.
- NSL right boundary
- intersection section a portion where the water flow FL injected from the first intermediate nozzle 73b (1) and the water flow FR injected from the second intermediate nozzle 73b (2) intersect each other (hereinafter, referred to as “intersection section”). .) Is marked ISS.
- the cross section ISS starts from the front of the drum 40 and proceeds to the rear, and ends before reaching the rear portion 420 of the drum 40.
- the crossover section ISS forms a line segment that descends from the front end to the back end when viewed from the side (see FIG. 12A).
- the crossover section ISS is preferably deeper than the median depth of the drum 40. Where it ends (see Figure 12 (c).)
- FIG. 13 illustrates a view of the spray patterns of the lower nozzles along YZ (U) shown in FIG. 8.
- 14 is a view of the spray pattern of the first lower nozzle along the XY (R) shown in Figure 8 (a), a view of the spray pattern of the lower nozzles along the ZX (F) shown in Figure 8 (b), (C) viewed along ZX (M) and (d) viewed along ZX (R).
- the pair of lower nozzles 73c (1) and 73c (2) are disposed on one side (or the first region) of the left and right sides with respect to the XY (C) plane and the other side.
- a second lower nozzle 73c (1) for injecting circulating water toward the second region and a second portion disposed on the other side with reference to the XY (C) plane and spraying circulating water toward the one side It may include a lower nozzle 73c (2).
- the first lower nozzle 73c (1) and the second lower nozzle 73c (2) are disposed symmetrically with respect to the XY (C) plane, and each of the lower nozzles 73c (1) and 73c (2) The injection directions are also symmetrical to each other.
- the water flow injected through each of the lower nozzles 73c (1) and 73c (2) is defined as between one side NSL adjacent to the side where the nozzle is disposed and the other boundary FSL corresponding to the opposite side of the one boundary. Has a width.
- One side boundary (NSL) may be located above the other side (FSL), preferably, one side (NSL) meets the rear portion 420 of the drum 40, the other boundary (FSL) is one side boundary ( NSL) meets the rear portion 420 of the drum 40 at the lower side. That is, the water flow injected by the lower nozzles 73c (1) and 73c (2) constitutes an inclined water film having a form downward from one side to the other side.
- the water flow injected through the lower leg nozzles 73c (1) and 73c (2) includes a point where one boundary NSL meets the rear part 420 of the drum 40, and the other boundary FSL is a rear part of the drum. It reaches an area formed between the point where it meets 420.
- the first lower nozzle 73c (1) is disposed on the left side (hereinafter referred to as the “left region”) with respect to the XY (C) plane
- the second lower nozzle 73c (2) is defined as XY ( C)
- the injection form of the lower nozzles 73c (1) and 73c (2) will be described in more detail, taking an example of being disposed on the right side (hereinafter referred to as a "right region") with respect to the plane.
- the first lower nozzle 73c (1) sprays the circulating water toward the right region. That is, the water flow injected through the first lower nozzle 73c (1) is not a symmetrical form with respect to the XY (C) plane, but a form that is deflected to the right.
- the left boundary (NSL, one boundary NSL) of the water flow FL injected through the first lower nozzle 73c (1) is located above the right boundary FSL, or the other boundary (FSL), Meets the rear portion 420 of the drum 40.
- the right boundary (FSL, or other boundary (FSL)) of the water flow FL injected through the first lower nozzle 73c (1) also meets the rear portion 420 of the drum 40.
- the left boundary NSL of the water flow FL injected through the first lower nozzle 73c (1) is preferably a rear portion of the drum 40 at a position higher than the center C of the drum 40. 420).
- the right boundary (FSL) of the water flow FL injected through the first lower nozzle 73c (1) is preferably a rear portion of the drum 40 at a position lower than the center C of the drum 40. 420).
- the section where the water flow FL injected through the first lower nozzle 73c (1) meets the drum 40 is directed to the right from the point where the left boundary NSL meets the rear part 420 of the drum 40. Proceeding downward, the right boundary (FSL) reaches the point where the rear portion 420 of the drum 40 meets.
- the second lower nozzle 73c (2) sprays the circulating water toward the right region. That is, the water flow injected through the second lower nozzle 73c (2) is not a symmetrical shape with respect to the XY (C) plane, but a form that is deflected to the right.
- the right boundary NSL or one side NSL of the water flow FR injected through the second lower nozzle 73c (2) is located above the left boundary FSL or the other boundary FSL. And, meets the rear portion 420 of the drum (40).
- the left boundary (FSL, or other boundary (FSL)) of the water flow (FR) injected through the second lower nozzle (73c (2)) also meets the rear portion 420 of the drum (40).
- the right boundary NSL of the water flow FR injected through the second lower nozzle 73c (2) is preferably formed at the rear portion of the drum 40 at a position higher than the center C of the drum 40. 420).
- the left boundary NSL of the water flow FL injected through the first lower nozzle 73c (1) is preferably a rear portion of the drum 40 at a position lower than the center C of the drum 40. 420).
- the section in which the water stream FR injected through the second lower nozzle 73c (2) meets the drum 40 is leftward from the point where the right boundary NSL meets the rear part 420 of the drum 40. Proceeding downward, the left boundary (FSL) reaches the point where the rear portion 420 of the drum 40 meets.
- intersection section the portion where the water flow FL injected from the first lower nozzle 73c (1) and the water flow FR injected from the second lower nozzle 73c (2) intersect (hereinafter, referred to as “intersection section”). .) Is marked ISS.
- the intersecting section ISS forms a segment that rises from the front end to the rear end when viewed from the side (see FIG. 14A).
- the intersecting section ISS is preferably deeper than the median depth of the drum 40. End (preferably, closer to the rear portion 420 than the median depth of the drum 40) (see FIG. 14D).
- FIG. 15 shows an assembly of a gasket 60 (2) and a circulating water jetting mechanism 70 (2), according to a second embodiment of the present invention.
- FIG. 16 is an enlarged perspective view of the circulating water injection mechanism shown in FIG. 15 and the cross section of the upper nozzle and the connection pipe.
- the same reference numerals are assigned to the same components as the above-described embodiments, and description thereof will be made as described above.
- the gasket 60 (2) may be formed with a receiving groove 64 a for receiving the guide tube 71.
- the receiving groove 64a is preferably formed in the flat portion 64. A portion of the flat portion 64 may protrude outward from the gasket 60 (2), so that the receiving groove 64 a may be formed on the inner circumferential surface of the flat portion 64.
- the receiving groove 64a may be formed to have an annular shape, but preferably, as shown in the embodiment, a predetermined part including a point to which the connection pipe 72 is connected (preferably the lowest point of the guide tube 71) is defined. It may be formed in the upper region except the lower region (or a predetermined upper region defined including the highest point of the guide tube 71).
- the guide tube 71 Since the lower region of the guide tube 71 is not easily shaken by the influence of the connecting tube 72 fixed to the gasket 60 (2), it is accommodated in the receiving groove 64a only in the upper region of the guide tube 71 in this manner. Even if it is, the guide tube 71 can be fixed sufficiently firmly.
- the guide tube 71 may include an upper region 71a corresponding to a portion inserted into the accommodation groove 64a and a gasket 60 in an area where the accommodation groove 64a is not formed.
- the lower region 71c in close contact with the inner circumferential surface of 2)) may have different cross-sectional shapes.
- the upper region 71a has a shape corresponding to the receiving groove 64a, that is, the cross-sectional shape is elongated outward along the radial direction from the center O of the gasket 60 (2).
- the cross section is longer in the front-rear direction (or in the width direction of the flat portion 64) than in the radial direction so that the contact area with the flat portion 64 can be widened.
- FIG. 17 is a cross-sectional view showing a structure in which the circulating water injection mechanism 70 (1) is installed in the gasket 60 (3) according to the third embodiment of the present invention.
- the circulating water injection mechanism 70 (1) is integrated with the guide tube 71 and the nozzles 73 a, 73 b (1), 73 b (2), 73 c (1), and 73 c (2). It may be configured to be.
- the gasket 60 (3) may include a tubular receiving portion 640 that protrudes on the inner circumferential surface of the flat portion 64 and extends along the circumference.
- the circulating water injection mechanism 70 (1) is accommodated inside the accommodation portion 640, and the nozzles 73 a, 73 b (1), 73 b (2), 73 c (1) and 73 c ( Openings 69h are formed at positions corresponding to the outlet of 2)), respectively, and the circulating water is injected into the drum 40 through the openings 69h.
- the circulating water injection mechanism 70 (1) may be embedded in the gasket 60 (3).
- the circulating water injection mechanism 70 (1) and the gasket 60 (3) may be integrally injected. That is, after forming the circulating water injection mechanism 70 (1) which is a hard synthetic resin material first, the circulating water injection mechanism 70 (1) is inserted into a mold for forming the gasket 60 (3), and the circulation A gasket 60 (3) can be formed by injecting a soft resin between the water injection mechanism 70 (1) and the mold, where 73h1 is the inlet of the nozzle in communication with the guide tube 71. , 73h2 is the outlet of the nozzle to which the circulating water is injected.
- the guide tube 71 is embedded in the gasket 60 (3), even if the tub 31 vibrates, the circulating water injection mechanism 70 (1) is not easily removed from the gasket 60 (3). Rather, the guide tube 71 is prevented from colliding with structures outside the tub 32 (eg, the balancers 81, 82, 83).
- the guide tube 71 is driven by the hydraulic pressure transferred along the guide tube 71 or from the nozzles 73a, 73b (1), 73b (2), 73c (1), and 73c (2). In close contact with the gasket 60 (1), there is an effect of being firmly fixed.
- FIG. 18 illustrates an assembly of a gasket and a circulating water jetting mechanism according to a fourth embodiment of the present invention.
- 19 illustrates the circulating water injection mechanism shown in FIG. 18.
- 20 is a cross-sectional view of the upper nozzle in a state where the circulating water injection mechanism shown in FIG. 18 is installed in the gasket.
- the circulating water injection mechanism includes a guide tube 71, an upper nozzle 730 (1) receiving water from the guide tube 71, and a pair of intermediate nozzles 730 (2). , 730 (5) and a pair of lower nozzles 730 (3) and 730 (4).
- the guide pipe 71 is branched to both sides from the inlet through which the circulating water flows to form an annular flow path.
- the part constituting the annular flow path 71 is divided into a plurality of sections 711, 716, 712, 713, 714, and 715, and nozzles 730 (1) and 730 (between adjacent sections). 2), 730 (3), 730 (4) and 730 (5) are connected.
- Each nozzle 730 (1), 730 (2), 730 (2), 730 (4), 730 (5) of the nozzle body 731 is formed with an outlet 73h2 through which water is injected into the drum 40
- Connecting pipes 736 and 737 connected to the guide pipe 71 and a flow path are formed at both sides.
- the guide tube 71 is arrange
- the nozzle body 731 is inserted into and fixed to a through hole (not shown) formed in the gasket 60 (4). In this state, the outlet 73h2 of the nozzle body 731 is located inside the gasket 60 (4), and the connecting pipes 736 and 737 are located outside the gasket 60 (4).
- FIG. 21 shows a part of a washing machine according to another embodiment of the present invention.
- at least one balancer 81, 82, 83 may be provided on the front surface of the tub 31.
- the balancers 81, 82, and 83 are for reducing the vibration of the tub 31, and are weights having a predetermined weight.
- the balancers 81, 82, and 83 may be provided in plural.
- the upper upper part of the tub 31, the left and right sides, respectively, the first upper balancer 81 and the second upper balancer 82 is provided, the lower balancer 83 may be provided in the lower front of the tub 31. have.
- FIG. 22 is a front view of the assembly of the gasket and guide tube shown in FIG. 21.
- FIG. 23 is a rear view of the assembly shown in FIG. 22.
- 24 is an enlarged view of a portion A of FIG. 23.
- 25 is a front view of the guide tube.
- FIG. 26 is a right side view of the assembly shown in FIG. 22.
- FIG. 27 is a cross-sectional view of FIG. 26.
- FIG. 28 is a cross-sectional view taken along the line II of FIG. 21.
- FIG. 29 is a cross-sectional view taken along line II-II of FIG. 21.
- FIG. 30 is a cross-sectional view taken along line III-III of FIG. 21.
- the gasket 60 includes a casing coupling portion 61 coupled around the inlet 12h of the casing 10, and a tub coupling portion 62 coupled around the inlet of the tub 31. And an extension 63 extending between the casing coupling portion 61 and the tub coupling portion 62.
- the casing coupling portion 61 and the tub coupling portion 62 each have an annular shape, and the extension portion 63 is annularly connected to the tub coupling portion 62 from an annular front end portion connected to the casing coupling portion 61. It has a rear end and may be formed in a tubular form extending from the front end to the rear end.
- the circumference of the inlet 12h is rolled outward, and the casing coupling portion 61 may be fitted into the recessed portion formed by the curled portion (see FIGS. 28 to 30).
- the casing coupling portion 61 may be formed with an annular groove 61r in which a wire is wound. After the wire is wound along the groove 61r, both ends of the wire are bound so that the casing coupling portion 61 is firmly fixed around the inlet 12h.
- the tub 31 has an inlet circumference rolled outward, and the tub coupling portion 62 is fitted into the recessed portion formed by the curled portion. (See FIGS. 28 to 30.)
- the tub coupling portion 62 has a wire.
- An annular groove 62r may be formed. After the wire is wound along the groove 62r, both ends of the wire are bound so that the tub coupling portion 62 is firmly coupled around the inlet of the tub 31.
- the casing coupling portion 61 is fixed to the front panel 12, but the tub coupling portion 62 is displaced according to the movement of the tub 31. Therefore, the extension portion 63 should be able to be modified in response to the displacement of the tub coupling portion 62.
- the gasket 60 is moved between the casing coupling portion 61 and the tub coupling portion 62 (or the extension portion 63) by the tub 31 by the eccentricity.
- the folding portion 65 may be formed to be folded as it is moved in a direction (or radial direction).
- the extension portion 63 is formed with a flat portion 64 that extends flat from the casing coupling portion 61 toward the tub coupling portion 62, and the folding portion 65 is formed with the flat portion 64. It may be formed between the tub coupling portion 62.
- the gasket 60 is bent outward from the front end of the flat portion 64 and in the state in which the door 20 is closed, the outer door tight portion 68 in close contact with the rear surface of the door 20 outside the inlet 12h. It may include.
- the casing coupling portion 61 may have a groove 61r formed at a portion extending from the outer end of the outer door contact portion 68.
- the gasket 60 is bent inward from the front end of the flat portion 64 and in the state in which the door 20 is closed, the back surface of the door 20 (preferably, the window 22) inside the inlet 12h. It may further include an inner door contact portion 66 in close contact with the.
- the drum 40 is vibrated during the rotation process (that is, the center of rotation C of the drum 40 is moved), and accordingly the center line of the tub 31 (approximately, the center of rotation C of the drum 40). ) Is also moved, and the movement direction (hereinafter, referred to as "eccentric direction") has a radial component.
- Folding portion 65 is folded or unfolded when the tub 31 moves in the eccentric direction.
- the folded portion 65 is bent from the flat portion 64 to the casing coupling portion 61 side, and bent from the inner diameter portion 65a to the tub coupling portion 62 to the tub coupling portion 62. It may include an outer diameter portion (65b) to be connected.
- the portion between the inner diameter portion 65a and the outer diameter portion 65b is reduced, on the contrary, the folded portion 65 is In the other part of the spread, the gap between the inner diameter portion 65a and the outer diameter portion 65b is opened.
- the gasket 60 may further include an annular protrusion 69 protruding from the outer diameter portion 65b.
- the protrusion 69 has a diameter smaller than the tub coupling 62.
- the gasket 60 includes a plurality of nozzles 610a, 610b, 610c, 610d, 610e for injecting circulating water into the drum 40.
- the guide tube 70 guides the circulating water fed by the pump 36 to the plurality of nozzles 610a, 610b, 610c, 610d, and 610e and is fixed to the gasket 60.
- the guide tube 70 includes an annular flow path 71 or a flow pipe for guiding water supplied through the circulation pipe 18, and a plurality of nozzle water supply ports 72a and 72b protruding from the annular flow path 71. , 72c, 72d, 72e). Each nozzle feed port 72a, 72b, 72c, 72d, 72e protrudes inwardly along the radial direction from the annular flow path 71, and each of the nozzles 610a, 610b, 610c, 610d, 610e, respectively. Connected.
- the guide tube 70 may include a circulation pipe connection port 75 protruding from the annular flow path 71 and connected to the circulation pipe 18.
- the circulation pipe connection port 75 protrudes outward in a radial direction from the annular flow path 71 and may be connected to the circulation pipe 18 through the gasket 60.
- An extension portion 63 of the gasket 60 may be formed with a guide tube accommodating portion 650 to accommodate the annular flow path 71.
- the guide tube receiving part 650 may protrude convexly outwardly along the radial direction from the extension part 63.
- the guide tube accommodating part 650 may extend in an annular shape along the circumference of the extension part 63, and may have a tubular shape surrounding the annular flow path 71 disposed therein.
- the guide tube receiving portion 650 may protrude from the outer diameter portion 65b of the fold portion 65.
- port through holes communicating with the guide tube receiving portion 650 may be formed to correspond to the plurality of nozzle water supply ports 72a, 72b, 72c, 72d and 72e.
- the gasket 60 may include a plurality of port insertion pipes 611 (see Fig. 27) protruding inward in the radial direction from the extension portion 63.
- the port through hole is formed at one end of each port insertion tube 611, and the other end is connected to the corresponding nozzles 610a, 610b, 610c, 610d, and 610e.
- a plurality of nozzle feed water ports 72a, 72b, 72c, 72d, 72e are respectively inserted into corresponding port insertion pipes 611.
- the gasket 60 and the guide tube 70 may be integrally formed by insert injection molding. That is, the guide tube 70 of the synthetic resin is first molded, and the guide tube 70 thus formed is inserted into a mold provided to form the gasket 60. Then, the gasket 60 and the guide tube 70 are integrally formed by injection molding and curing the molding material for forming the gasket 60 into the cavity between the guide tube 70 and the mold. can do.
- the guide tube 70 may further include fixing pins 76a, 76b, 76c protruding outward in the radial direction from the outer circumferential surface of the annular flow path 71.
- the fixing pins 76a, 76b, and 76c are for fixing the guide tube 70 in the mold during the aforementioned insert injection molding.
- a groove into which the fixing pins 76a, 76b, and 76c are inserted or fixed, or a binding hole for binding the fixing pin may be formed in the mold.
- a molding material is injected into the mold. In the molding injected in the above manner (that is, the assembly in which the gasket 60 and the guide tube 70 are integrally formed), the fixing pins 76a, 76b, and 76c protrude out of the gasket 60 (Fig. See 26.).
- a plurality of fixing pins 76a, 76b, and 76c may protrude from the annular flow path 71.
- the fixing pins 76a, 76b, and 76c are formed at the upper end (12 o'clock), the left end (9 o'clock), and the right end (3 o'clock) of the annular flow path 71, respectively. Instead, the position and the number can be appropriately determined according to the mold.
- the plurality of nozzles (610a, 610b, 610c, 610d, 610e) respectively spray the circulating water supplied through the corresponding nozzle feed port (72a, 72b, 72c, 72d, 72e) into the drum (40).
- a plurality of nozzles (610a, 610b, 610c, 610d, 610e) is disposed below the upper nozzle 610a for injecting the circulating water and the upper nozzle 610a to inject the circulating water downward, the upper nozzle ( A pair of intermediate nozzles 610b and 610e that spray deeper into the drum 40 than 610a and a pair of intermediate nozzles 610b and 610e that are disposed below the pair and spray the circulating water upwards. Lower nozzles 610c and 610d may be included.
- the configuration of the upper nozzle 610a described with reference to FIGS. 23, 24, and 27 may be equally applied to other nozzles 610b, 610c, 610d, and 610e.
- the gasket 60 may include a port insertion pipe 611 into which the nozzle feed water ports 72a, 72b, 72c, 72d, 72d, and 72e are inserted.
- the port insertion tube 611 protrudes from the inner peripheral surface of the outer diameter portion 65b.
- the port insertion tube 611 may have a tubular shape and may protrude from the inner circumferential surface of the outer diameter portion 65b, and one end may communicate with the guide tube receiving portion 650, and the other end may correspond to the corresponding nozzles 610a, 610b, 610c, 610d, and 610e.
- the nozzle water supply ports 72a, 71b, 72c, 72d, 72d, and 72e may be inserted into each of the plurality of port insertion pipes 611.
- the upper nozzle 610a extends from the collision surface 612a where the water discharged from the nozzle water supply port 72a collides, and the left and right sides of the collision surface 612a, respectively, along the collision surface 612a. It may include a left side 612b and a right side 612c respectively defining the left and right boundaries of the flowing water stream.
- the angle ⁇ formed between the left surface 612b and the right surface 612c of the upper nozzle 610a is approximately 45 to 60 degrees, preferably 55 degrees, but is not necessarily limited thereto.
- a plurality of protrusions 612d may be arranged in the transverse direction (or the width direction of the water flow). Water streams traveling along the collision surface 612a collide with the projections 612d and are then sprayed through the outlet.
- the flow of water injected through the upper nozzle 610a is relatively thick, while the portion injected through the projections 612d is thick, whereas the portion injected after passing through the projections 612d is relatively thin. It is composed of a thin film of water spreading between thick main streams.
- the circulation pipe connection port 75 is connected to the annular flow path 71 below any one of the plurality of nozzles (610a, 610b, 610c, 610d, 610e).
- the circulation pipe connecting port 75 is connected to the lowest point of the annular flow path 71.
- the annular flow path 71 may be located at the lowest point of the inlet (71h) in which water is introduced from the circulation pipe connecting port 75.
- the pair of intermediate nozzles 610b and 610e may be formed above the inlet 71h and disposed on the left and right sides of the inlet 71h, respectively.
- the pair of intermediate nozzles 610b and 610e are arranged symmetrically with respect to the vertical line OV passing through the center (O, see FIG. 23) of the annular flow path 71, and thus each intermediate nozzle 610b and 610e. Injection direction is also symmetrical about the vertical line OV.
- the pair of intermediate nozzles 610b and 610e may be located above the center O of the guide tube 77 (for reference, OH shown in FIG. 23 is a horizontal line passing through the center O). Since each of the intermediate nozzles 610b and 610e injects the circulating water downward, when looking into the drum 40 from the front, the circulating water is larger than the center C of the drum 40 at the inlet side of the drum 40. Passing through the upper region, the depth is injected into the drum 40 in a downwardly inclined form.
- the pair of lower nozzles 610c and 610d are disposed above the inlet 71h but below the pair of intermediate nozzles 610b and 610e.
- the pair of lower nozzles 610c and 610d may be disposed at both left and right sides with respect to the inlet 71h, and preferably, are arranged symmetrically with respect to the vertical line OV, so that each lower nozzle 610c, The injection direction of 610d is symmetric with respect to the vertical line OV.
- the pair of lower nozzles 610c and 610d may be located below the center O of the guide tube 70. Since each of the lower nozzles 610c and 610d injects the circulating water upwards, when looking into the drum 40 from the front, the circulating water is lower than the center C of the drum 40 at the inlet side of the drum 40. Passing through the area, the deeper into the drum 40 is sprayed in an inclined upward form.
- the upper nozzle 610a is preferably disposed on the vertical line OV, and the shape of the circulating water sprayed through the upper nozzle 610a is symmetrical with respect to the vertical line OV.
- the circulating water supplied through the circulation pipe 18 flows into the guide pipe 71 through the circulation pipe connection port 75 and then branches to both sides and rises along the flow path. Is done.
- the operating pressure of the pump 36 can be controlled to the extent that the pressurized water can reach the upper nozzle 610a.
- the controller may vary the injection pressure of the nozzles (610a, 610b, 610c, 610d, 610e).
- the speed of the pump motor can be variably controlled within the range that the injection is performed by all the nozzles (610a, 610b, 610c, 610d, 610e) at the same time. Filtration motion in which laundry is rotated together with the drum 40 while the circulating water is sprayed by the nozzles 610a, 610b, 610c, 610d, and 610e while the laundry is stuck to the inner surface of the drum 40. This can be done.
- the filtration motion may be performed a plurality of times.
- the acceleration of the pump motor can be synchronized with the point of time of each filtration motion, and the deceleration can be synchronized with the point of braking the drum 40 for the end of each filtration motion.
- the pump motor is also accelerated so that the laundry is completely attached to the drum 40 and rotated together with the drum 40 (that is, the drum 40 of the drum 40). Even when the laundry reaches its peak by rotation, the injection pressure through the nozzles 610a, 610b, 610c, 610d, and 610e may be the highest in the state where the centrifugal force is greater than gravity and the laundry does not fall.
- the circulating water injected from the nozzles 610a, 610b, 610c, 610d, and 610e reaches the deepest part of the drum 40, in particular. In comparison with the other nozzles 610a, 610c, and 610d, the circulating water sprayed through the intermediate nozzles 610b and 610e may reach the deepest portion of the drum 40.
- the intermediate nozzles 610b and 610e form an angle ⁇ 1 with the upper nozzle 610a and the lower nozzle
- ⁇ 1 may be approximately 50 to 60 degrees, preferably 55 degrees as shown in FIG. 5, but is not limited thereto. It is not.
- ⁇ 2 is approximately 50 degrees to 65 degrees, preferably 55 degrees as shown in FIG. 5, but is not necessarily limited thereto.
- the gasket 60 may be provided with a straight nozzle 42 (see FIG. 28).
- the direct nozzle 42 sprays water (ie, direct water) supplied from an external water source (for example, a faucet) into the drum 40.
- the flat part 64 of the gasket 60 may be formed with a first installation pipe 61c (see FIGS. 26 and 27) in which the direct nozzle 42 is installed.
- the gasket 60 may be installed with a steam spray nozzle (not shown). Washing machine according to an embodiment of the present invention may include a steam generator (not shown) for generating steam.
- the steam nozzle is to inject the steam generated by the steam generator into the drum (40).
- the flat part 64 of the gasket 60 may be formed with a second installation pipe 61d (see FIGS. 26 and 27) in which the steam nozzle is installed.
- the steam nozzle may be installed in the first installation pipe 61c, and the direct nozzle 42 may be installed in the second installation pipe 61d.
- the ports 61a and 61b shown in FIG. 26 which are not described above are provided to install nozzles provided according to the specifications of the washing machine, and the nozzles are the direct nozzle 42 or the steam nozzle described above. It is also possible to further provide a separate nozzle.
Abstract
Description
Claims (31)
- 전면에 세탁물을 투입하기 위한 투입구가 형성된 케이싱;상기 케이싱 내에 배치되어 세탁수를 담고 전면이 상기 투입구와 연통되도록 개구된 터브;상기 터브 내에 회전 가능하게 배치되고, 세탁물이 담기는 드럼;상기 투입구와 상기 터브의 입구를 연통시키는 관상의 개스킷;상기 터브로부터 배출된 물을 압송하는 펌프;상기 개스킷에 고정되고, 상기 펌프로부터 공급된 물을 안내하는 환형의 유로를 형성하는 안내관; 및상기 안내관을 통해 공급된 물을 상기 드럼 내로 분사하는 복수의 노즐을 포함하고,상기 복수의 노즐은,하향으로 물을 분사하는 상부 노즐;상기 상부 노즐의 하측에 배치되고, 상기 펌프에 의해 공급된 물이 유입되는 상기 안내관의 유입구를 기준으로 좌, 우 양측에 각각 배치되어 하향으로 물을 분사하되, 상기 상부 노즐보다 상기 드럼의 내로 더 깊숙이 물을 분사하는 한 쌍의 중간 노즐: 및상기 유입구 보다 상측이고, 상기 중간 노즐 보다는 하측에 배치되고, 상기 유입구를 기준으로 좌, 우 양측에 각각 배치되어, 상향으로 물을 분사하는 한 쌍의 하부 노즐을 포함하는 세탁기.
- 제 1 항에 있어서,상기 안내관은 개스킷의 내주면에 고정되고,상기 복수의 노즐은 상기 안내관과 일체로 형성되는 세탁기.
- 제 2 항에 있어서,상기 개스킷은,상기 투입구의 둘레에 결합되는 케이싱 결합부;상기 터브의 입구 둘레에 결합되는 터브 결합부;상기 케이싱 결합부로부터 상기 터브 결합부를 향해 평평하게(evenly) 연장되는 평탄부; 및상기 평탄부로부터 상기 터브 결합부 사이에 형성되고, 상기 터브의 변위에 대응하여 접철되는 접철부를 포함하고,상기 안내관은 상기 평탄부에 배치되는 세탁기.
- 제 3 항에 있어서,상기 개스킷은,상기 평탄부로부터 외측으로 돌출되어, 상기 평탄부의 내주면 상에 수용 홈이 형성되고,상기 안내관은,적어도 일부분이 상기 수용 홈 내에 수용되는 세탁기.
- 제 4 항에 있어서,상기 안내관의 유입구로부터 외측으로 연장되어 상기 개스킷을 통과하고, 상기 개스킷의 외측에서 상기 펌프에 의해 압송된 물을 안내하는 순환관과 연결되는 연결관을 더 포함하고,상기 수용 홈은,상기 연결관이 통과하는 지점을 포함하여 정의된 소정의 하부 영역을 제외한 상부 영역에 형성되는 세탁기.
- 제 3 항에 있어서,상기 개스킷은,상기 평탄부의 내주면으로부터 돌출되어, 원주를 따라 연장되는 관상의 수용부를 더 포함하고,상기 안내관은,적어도 일부분이 상기 수용부 내에 수용되는 세탁기.
- 제 6 항에 있어서,상기 안내관과 상기 수용부는 인서트 사출에 의해 일체로 형성되는 세탁기.
- 제 1 항에 있어서,상기 안내관은,상기 개스킷의 외주면 상에 고정되고,상기 복수의 노즐은,상기 개스킷을 관통하도록 배치되어, 상기 개스킷의 외측에서 상기 안내관과 연결되는 세탁기.
- 제 1 항에 있어서,상기 한 쌍의 중간 노즐은 상기 안내관의 중심 보다 상측에 배치되는 세탁기.
- 제 9 항에 있어서,상기 한 쌍의 중간 노즐은 좌우 대칭으로 형성되는 세탁기.
- 제 1 항에 있어서,상기 한 쌍의 하부 노즐은 상기 안내관의 중심 보다 하측에 배치되는 세탁기.
- 제 11 항에 있어서,상기 한 쌍의 하부 노즐은 좌우 대칭으로 형성되는 세탁기.
- 제 1 항에 있어서,상기 복수의 노즐은 각각,상기 안내관을 통해 물이 유입되는 입구가 형성된 입구 형성면; 및상기 입구를 통해 토출된 물이 충돌한 뒤 상기 드럼을 향해 개구된 출구로 진행되도록 안내하는 충돌면을 포함하고,상기 입구 형성면과 상기 충돌면이 이루는 각도는,상기 상부 노즐, 상기 중간 노즐 및 상기 하부 노즐 순으로 점점 작아지는 세탁기.
- 제 1 항에 있어서,상기 유입구는,상기 안내관의 최저점에 배치되는 세탁기.
- 제 1 항에 있어서,상기 복수의 노즐은,상기 안내관과 일체로 형성되는 세탁기.
- 제 1 항에 있어서,상기 펌프는 속도 제어가 가능한 것인 세탁기.
- 제 1 항에 있어서,상기 복수의 노즐은 상기 개스킷에 형성되고,상기 안내관은 상기 개스킷에 매립되는 세탁기.
- 제 17 항에 있어서,상기 개스킷은,상기 케이싱의 투입구 둘레에 결합되는 케이싱 결합부;상기 터브의 입구 둘레에 결합되는 터브 결합부;상기 케이싱 결합부와 상기 터브 결합부 사이에서 연장되는 연장부; 및상기 연장부로부터 외측으로 볼록하게 돌출되어, 내측에 상기 안내관을 수용하는 안내관 수용부를 포함하는 세탁기.
- 제 18 항에 있어서,상기 연장부는,상기 케이싱 결합부로부터 상기 터브 결합부를 향해 평평하게 연장되는 평탄부; 및상기 평탄부와 상기 터브 결합부 사이에 형성되고, 상기 터브의 변위에 대응하여 접철되는 접철부를 포함하고,상기 접철부는,상기 평탄부로부터 상기 케이싱 결합부측으로 절곡된 내경부; 및상기 내경부로부터 상기 터브 결합부측으로 절곡된 외경부를 포함하고,상기 안내관 수용부는,상기 외경부에 형성되는 세탁기.
- 제 19 항에 있어서,상기 안내관은,상기 복수의 노즐과 각각 대응하여, 상기 환형의 유로로부터 반경 방향을 따라 내측으로 돌출된 복수의 노즐 급수포트를 포함하고,상기 개스킷에는,상기 외경부의 내주면으로부터 돌출되고, 일단은 상기 안내관 수용부와 연통되고 타단은 대응하는 노즐과 연결되는 포트 삽입관이 복수가 형성되어, 각각에 상기 노즐 급수포트가 삽입되는 세탁기.
- 제 20 항에 있어서,상기 펌프에 의해 압송된 물을 안내하는 순환관을 더 포함하고,상기 안내관은,일단에 상기 유입구가 형성되고, 상기 일단으로부터 돌출되어 상기 개스킷을 통과하여 상기 순환관과 연결되는 순환관 연결포트를 더 포함하는 세탁기.
- 제 17 항에 있어서,상기 안내관은,상기 환형의 유로의 외주면으로부터 돌출되고, 상기 개스킷을 통과하여 상기 개스킷의 외측으로 돌출되는 적어도 하나의 고정핀을 더 포함하는 세탁기.
- 제 22 항에 있어서,상기 적어도 하나의 고정핀은,상기 환형의 유로의 상단부, 좌측단부 및 우측단부에 각각 형성되는 세탁기.
- 제 17 항에 있어서,상기 한 쌍의 중간 노즐은 상기 환형의 유로의 중심 보다 상측에 배치되는 세탁기.
- 제 24 항에 있어서,상기 한 쌍의 중간 노즐은 좌우 대칭으로 형성되는 세탁기.
- 제 17 항에 있어서,상기 한 쌍의 하부 노즐은 상기 환형의 유로의 중심 보다 하측에 배치되는 세탁기.
- 제 26 항에 있어서,상기 한 쌍의 하부 노즐은 좌우 대칭으로 형성되는 세탁기.
- 제 17 항에 있어서,상기 복수의 노즐은 각각,상기 안내관으로부터 토출된 물을 충돌한 뒤 상기 드럼을 향해 개구된 상기 노즐의 출구로 진행되도록 안내하는 충돌면을 포함하는 세탁기.
- 제 17 항에 있어서,상기 유입구는,상기 환형의 유로의 최저점과 연결되는 세탁기.
- 제 17 항에 있어서,상기 펌프는 속도 제어가 가능한 것인 세탁기.
- 제 17 항에 있어서,상기 안내관과 상기 개스킷은 인서트 성형에 의해 일체로 형성되는 세탁기.
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CN201780087574.9A CN110366617A (zh) | 2016-12-28 | 2017-12-28 | 洗衣机 |
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US20230383458A1 (en) | 2023-11-30 |
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US20190330780A1 (en) | 2019-10-31 |
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