washing machine

Abstract

The present invention provides a washing machine. The washing machine comprises a housing, an outer drum and an inner drum are arranged in the housing, a fan, a fan chamber connected to a drying air duct is formed in the housing, and a steam water inlet valve and a spray water inlet are also included, a first end of a water outlet pipe is respectively connected to the spray water inlet valve and the steam water inlet valve, a nozzle is connected to the second end of the water outlet pipe, and the nozzle comprises a first water inlet pipe, a first extension pipe, a second extension pipe and a third extension pipe which are gradually away from the water outlet pipe; the water inlet end of the second extension pipe is closer to the inner drum than the water outlet end of the second extension pipe; a first protrusion is arranged on a pipe wall of the second extension pipe close to the inner drum and has an opening close to the water outlet end of the second extension pipe, a first blocking plate is connected to an end of the first protrusion close to the outer drum and extends along the height direction of the housing; a steam water outlet is arranged on a side wall of the first protrusion close to the inner drum and is located at the air inlet end of the drying air duct; and a spray water outlet is arranged on a side wall of the third extension pipe close to the inner drum.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a washing machine. Background Art

[0002] With the rapid development of washing machines, more and more washing machines are equipped with steaming and ironing functions, which can provide care for clothes.

[0003] The washing machine is a drum washing machine. A door body for opening the drum is provided on a first side of the washing machine. The washing machine also includes a second side arranged opposite to the door body. The first side is defined as a front side, and the second side is defined as a rear side.

[0004] The washing machine is provided with a fan and a drying air duct connected to the fan, and a heating device is provided in the drying air duct. The washing machine is provided with a water inlet valve and a water outlet pipe, and the water outlet pipe is connected to the water inlet valve through a pipeline. The nozzle of the water outlet pipe is correspondingly arranged at the rear side of the air inlet end of the drying air duct.

[0005] When the washing machine turns on the steam washing mode, the water inlet valve opens, and water flows out from the water inlet valve to the nozzle of the outlet pipe. The fan rotates to form negative pressure, and the water sprayed from the nozzle enters the drying duct under the back suction action of the fan, and is heated by the heating pipe at the front end of the drying duct to form hot steam. The drying duct is connected to the inner drum, and the hot steam enters the inner drum to exchange heat with the clothes to achieve the effect of steam care.

[0006] The water outlet pipe is used to supply water to generate steam during the drying process, and is also used to supply spray water to the bottom surface of the inner drum. The nozzle is correspondingly arranged on the side of the inner drum close to the second side surface. When the washing machine needs water to generate steam,

[0007] Sometimes the fan rotation cannot make all the water flowing to the nozzle enter the drying air duct, which will cause some water to spray out from the water inlet hole on the bottom of the inner drum and directly flow into the inner drum, causing the clothes stored in the inner drum to get wet.

[0008] In the prior art, three methods have been adopted to improve the problem of water on the nozzle entering the inner drum. First, reduce the opening time of the water inlet valve, but the opening time of the water valve is limited by the required amount of steam and cannot be opened for too short a time. Reducing the opening time of the water valve cannot effectively solve the problem of water flowing out of the second outlet. Second, increase the fan speed. Increasing the fan speed can increase the amount of water sucked into the drying duct, but some water will also flow into the inner drum, which cannot fundamentally solve the problem. Third, increase the drying time. Increasing the drying time can dry the wet clothes in the inner drum, but it will cause the effect of steam care to deteriorate, the care time to become longer, and waste electricity. Summary of the invention

[0009] The present invention solves one of the technical problems in the related art at least to a certain extent.

[0010] To this end, the present application aims to provide a washing machine, in which a nozzle is divided into a first water inlet pipe, a first extension pipe, a second extension pipe and a third extension pipe. The second extension pipe is arranged at an angle, and the upper end of the second extension pipe is closer to the front relative to the lower end of the second extension pipe. When the water volume is small, the water is likely to flow out through the steam water outlet, reducing the probability of water flowing into the inner drum and wetting the clothes. By setting a spray water inlet valve and a steam water inlet valve, it can be achieved that in the steam care mode, water can be sucked into the drying duct with a high probability to reduce the probability of water spraying onto the bottom of the inner drum.

[0011] The washing machine according to the present application comprises:

[0012] A housing, wherein the housing is provided with a delivery port;

[0013] An outer cylinder, which is arranged in the shell;

[0014] An inner cylinder, which is arranged in the outer cylinder, and the inner cylinder includes an inner cylinder bottom surface;

[0015] A fan, wherein a fan cavity communicating with the drying air duct is formed in the housing, and the fan is arranged in the fan cavity;

[0016] A steam inlet valve connected to a water source;

[0017] A sprinkler water inlet valve connected to a water source;

[0018] A water outlet pipe, wherein the first end of the water outlet pipe has at least two branch pipes, the two branch pipes are respectively connected to the spray water inlet valve and the steam water inlet valve, and the second end of the water outlet pipe extends to a side of the inner cylinder close to the second side surface;

[0019] A nozzle connected to the second end of the water outlet pipe, the nozzle comprising a first water inlet pipe, a first extension pipe, a second extension pipe and a third extension pipe which gradually move away from the water outlet pipe;

[0020] The extension direction of the second extension tube is arranged at an angle with the height direction of the shell;

[0021] a first protrusion, which is disposed on the tube wall of the second extension tube and has an opening close to the water outlet end of the second extension tube, so that water flowing out of the second extension tube first flows through the first protrusion and then flows through the third extension tube;

[0022] a first blocking plate connected to one end of the first protruding portion, disposed at a connection between the second extension tube and the third extension tube, and extending along a height direction of the housing to block water in the first protruding portion from flowing toward the third extension tube;

[0023] A steam water outlet, which is arranged on the side wall of the first protrusion and is arranged close to the air inlet end of the drying air duct;

[0024] A spray water outlet, which is provided on the side wall of the third extension tube close to the inner tube;

[0025] Steam care mode: the fan is running, the steam water inlet valve is opened, and the spray water inlet valve is closed, so that water flows from the steam water inlet valve to the nozzle, flows through the first protrusion and flows out from the steam water outlet, and the fan sucks the water into the drying air duct.

[0026] In some embodiments of the present application, the third extension tube is arranged opposite to the bottom surface of the inner tube and is arranged at a position of the bottom surface of the inner tube away from the injection port; a water-permeable hole is arranged on the bottom surface of the inner tube;

[0027] Spray water inlet mode: the fan stops running, the spray water inlet valve is opened, and the steam water inlet valve is closed;

[0028] The water inlet volume per second of the steam water inlet valve is L1, and the water inlet volume per second of the spray water inlet valve is L2, where L1≤L2.

[0029] In some embodiments of the present application, when the ratio of the amount of water flowing out of the steam water outlet to the total amount of water flowing into the nozzle is n, n≥50%, the water inlet amount of the steam water inlet valve is L0; L1≤L0.

[0030] In some embodiments of the present application, the washing machine includes a top plate and a base, the height direction of the shell between the top plate and the base is a first direction, the first protrusion includes a first side wall and a second side wall, the first side wall extends along the first direction, the second side wall is the same as the extension direction of the second extension pipe, and the second side wall is connected to an end of the first side wall away from the first water inlet pipe.

[0031] In some embodiments of the present application, the diameter of the first extension pipe is smaller than the diameter of the first water inlet pipe; the first water inlet pipe includes a first pipe section and a reducer, and the reducer includes:

[0032] A first reducer pipe wall, which is close to the bottom surface of the inner tube, and the diameter of the first reducer pipe wall is d1;

[0033] The second reducer tube wall is far away from the bottom surface of the inner tube, the diameter of the second reducer tube wall is d2, the diameter of the second reducer tube wall gradually decreases from a position close to the first tube section to a position far away from the first tube section, and d2≤d1.

[0034] In some embodiments of the present application, the shell has a first side surface provided with the injection port, and the projection of the first blocking plate on the first side surface can cover the projection of the steam water outlet on the first side surface.

[0035] In some embodiments of the present application, the washing machine includes a top plate and a base, and the height direction of the housing between the top plate and the base is a first direction;

[0036] A second blocking plate is disposed on the tube wall of the first extension tube, and the second blocking plate extends along a first direction to guide water flowing in the first extension tube to flow toward the first protrusion.

[0037] In some embodiments of the present application, the nozzle is connected to the water outlet pipe via a first connecting pipe, which is disposed in a fan mounting base, with the upper end of the first connecting pipe connected to the water outlet pipe and the lower end of the first connecting pipe connected to the nozzle.

[0038] In some embodiments of the present application, a first installation space is provided between the bottom surface of the inner cylinder and the outer cylinder, the air inlet end of the drying air duct is connected to the first installation space, and the air outlet end of the drying air duct is connected to the inner cylinder;

[0039] A heating device is provided inside the drying air duct. When the fan is running and sucks water into the drying air duct, the heating device is running to heat the water entering the drying air duct into hot steam.

[0040] In some embodiments of the present application, the washing machine includes a top plate and a base, the height direction of the shell between the top plate and the base is a first direction, the first extension tube and the third extension tube both extend along the first direction, the steam water outlet has one or more, and the spray water outlet has one or more.

[0041] The washing machine of the present application has at least the following positive effects:

[0042] The present invention provides a washing machine. The washing machine comprises a housing, an outer drum and an inner drum are arranged in the housing, a fan, a fan chamber connected to a drying air duct is formed in the housing, and a steam water inlet valve and a spray water inlet are also included, a first end of a water outlet pipe is respectively connected to the spray water inlet valve and the steam water inlet valve, a nozzle is connected to the second end of the water outlet pipe, and the nozzle comprises a first water inlet pipe, a first extension pipe, a second extension pipe and a third extension pipe which are gradually away from the water outlet pipe; the water inlet end of the second extension pipe is closer to the inner drum than the water outlet end of the second extension pipe; a first protrusion is arranged on a pipe wall of the second extension pipe close to the inner drum and has an opening close to the water outlet end of the second extension pipe, a first blocking plate is connected to an end of the first protrusion close to the outer drum and extends along the height direction of the housing; a steam water outlet is arranged on a side wall of the first protrusion close to the inner drum and is located at the air inlet end of the drying air duct; and a spray water outlet is arranged on a side wall of the third extension pipe close to the inner drum. The washing machine nozzle of the present application is divided into a first water inlet pipe, a first extension pipe, a second extension pipe and a third extension pipe. The second extension pipe is arranged at an angle, and the upper end of the second extension pipe is closer to the front relative to the lower end of the second extension pipe. When the water volume is small, the water is likely to flow out through the steam water outlet, reducing the probability of water flowing into the inner drum and wetting the clothes. By setting a spray water inlet valve and a steam water inlet valve, it can be achieved that in the steam care mode, water can be sucked into the drying duct with a high probability to reduce the probability of water spraying to the bottom of the inner drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 is a view of the appearance of a washing machine according to an embodiment of the present application;

[0045] Figure 2 is a view of a washing machine according to an embodiment of the present application with a housing removed;

[0046] Figure 3 is another view of a washing machine with its housing removed according to an embodiment of the present application;

[0047] Figure 4 yes Figure 3 A front view of

[0048] Figure 5 yes Figure 4 AA section view in the figure;

[0049] Figure 6 yes Figure 4A partial enlarged view of the AA section view;

[0050] Figure 7 is a view of a spray head of a washing machine according to an embodiment of the present application;

[0051] Figure 8 is a view of a spray head of a washing machine according to an embodiment of the present application;

[0052] Fig. 9 yes Figure 8 Rear view of

[0053] Fig.10 yes Fig. 9 A top view of

[0054] Fig.11 yes Fig.10 BB section view;

[0055] Fig.12 is a schematic diagram of the connection between the spray water inlet valve, the steam water inlet valve and the water outlet pipe of the washing machine according to the embodiment of the present application;

[0056] Fig.13 yes Fig.12 CC section view in the figure;

[0057] Fig.14 is a flow chart of a steam care mode of a washing machine according to an embodiment of the present application;

[0058] Fig.15 is a flow chart of a spray water inlet mode of a washing machine according to an embodiment of the present application;

[0059] In the above figures: 100, washing machine; 1, shell; 11, first side; 12, loading port; 21, outer drum; 22, inner drum; 221, first opening; 222, bottom surface of inner drum; 23, first installation space; 31, top plate; 32, base; 41, fan; 42, fan mounting seat; 43, first connecting pipe; 51, steam inlet valve; 52, spray inlet valve; 53, water outlet pipe; 6, nozzle; 61, first inlet valve Tube; 611, first pipe section; 612, tapered tube; 6121, first tapered tube wall; 6122, second tapered tube wall; 62, first extension tube; 63, second extension tube; 64, third extension tube; 65, first protrusion; 651, first side wall; 652, second side wall; 66, first baffle; 67, steam water outlet; 68, spray water outlet; 69, second baffle; 7, drying air duct; 8, one-way valve. DETAILED DESCRIPTION

[0060] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0061] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The terms "first", "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the following, reference will be made to the Figure 1-15 To describe this application in detail.

[0065] The washing machine 100 of the present application includes a housing 1, and a loading port 12 is provided on the housing 1. The washing machine 100 is a drum washing machine 100, and the housing 1 is similar to a quadrangular prism shape, and includes a first side surface 11 and a second side surface that are arranged oppositely. The loading port 12 is provided on the first side surface 11 of the housing 1, and the washing machine 100 also includes a door body connected to the loading port 12, and the door body can open or close the loading port 12.

[0066] The washing machine 100 further includes an outer drum 21 and an inner drum 22, wherein the outer drum 21 is disposed in the housing 1, and the inner drum 22 is disposed inside the outer drum 21. The inner drum 22 is a cylindrical inner drum 22, and the inner drum 22 is rotatably disposed in the outer drum 21. A first opening 221 is disposed at the front side of the inner drum 22, and a gasket is disposed at the first opening 221, and the gasket is fixed on the first side surface 11, or the gasket is connected to the protruding edge of the housing 1 or the mounting partition. The front edge of the inner drum 22 contacts the gasket and slides on the gasket, so that the inner drum 22 and the gasket are rotatably connected in an airtight manner.

[0067] The washing machine 100 further includes a drying duct 7, and air flow can flow between the drying duct 7 and the inner drum 22. The drying duct 7 can be arranged below / above / behind the inner drum 22.

[0068] The washing machine 100 further includes a heating device disposed in the drying air duct 7 . The heating device is a condenser or a heating tube. The heating device can be disposed below / behind / above the inner drum 22 .

[0069] The washing machine 100 further includes a fan 41 cavity communicated with the drying air duct 7 . The fan 41 cavity is disposed in the housing 1 , and a fan 41 is disposed in the fan 41 cavity.

[0070] The washing machine 100 further includes a top plate 31 and a base 32 , wherein the top plate 31 is connected to the top of the first side surface 11 and the second side surface, and the base 32 is connected to the bottom of the first side surface 11 and the second side surface.

[0071] The direction where the top plate 31 is located is defined as the top of the washing machine 100 , the direction where the base 32 is located is defined as the bottom of the washing machine 100 , the height direction of the housing 1 between the top plate 31 and the base 32 is defined as the first direction, and the first direction is the up and down direction of the washing machine 100 .

[0072] The direction where the first side 11 is located is defined as the front side of the washing machine 100 , the direction where the second side is located is defined as the rear side of the washing machine 100 , the width direction of the shell 1 between the first side 11 and the second side is the second direction, and the first direction is the front and rear direction of the washing machine 100 .

[0073] The housing 1 further includes a third side surface and a fourth side surface connected between the first side surface 11 and the second side surface, and the third side surface and the fourth side surface are arranged opposite to each other.

[0074] The direction where the third side is located is defined as the left side of the washing machine 100 , the direction where the fourth side is located is defined as the right side of the washing machine 100 , and the length direction of the shell 1 between the third side and the fourth side is defined as the third direction, which is the left-right direction of the washing machine 100 .

[0075] The inner cylinder 22 is a cylindrical structure, and includes a cylindrical outer peripheral side wall and an inner cylinder bottom surface 222 .

[0076] The washing machine 100 has a plurality of water inlet valves, including a steam water inlet valve 51 and a spray water inlet valve 52 , and the steam water inlet valve 51 and the spray water inlet valve 52 are respectively connected to an external water source.

[0077] The first end of the water outlet pipe 53 has at least two branch pipes, which are respectively connected to the spray water inlet valve 52 and the steam water inlet valve 51, so that the spray water inlet valve 52 and the steam water inlet valve 51 can be respectively filled with water. When the washing machine 100 is in the steam care mode, the steam water inlet valve 51 is opened to supply water to generate hot steam, and when the washing machine 100 is in the spray water inlet mode, the spray water inlet valve 52 is opened to supply water to spray the bottom surface 222 of the inner drum.

[0078] The second end of the water outlet pipe 53 extends to the side of the inner cylinder 22 close to the second side surface. A fan mounting seat 42 is provided between the inner cylinder 22 and the drying air duct 7. The fan mounting seat 42 is provided with a receiving hole. A first connecting pipe 43 is passed through the receiving hole. The upper end of the first connecting pipe 43 is connected to the second end of the water outlet pipe 53, and the lower end of the first connecting pipe 43 is connected to the upper end of the nozzle 6.

[0079] The nozzle 6 is connected to the second end of the water outlet pipe 53, and the nozzle 6 includes a first water inlet pipe 61, a first extension pipe 62, a second extension pipe 63 and a third extension pipe 64 which are gradually away from the water outlet pipe 53. The nozzle 6 is a hollow tubular structure, and the first water inlet pipe 61, the first extension pipe 62, the second extension pipe 63 and the third extension pipe 64 are connected in sequence.

[0080] The diameter of the first extension pipe 62 is smaller than the diameter of the first water inlet pipe 61. When water flows out of the first water inlet pipe 61 with a larger diameter, it enters the first extension pipe 62 with a smaller diameter. When the water flows out of the first extension pipe 62 with a smaller diameter, the cross-sectional area of ​​the outflowing water flow is smaller, the outflowing water flow is thinner, and the water flow is more concentrated.

[0081] The second extension tube 63 is an inclined tube, and the water inlet end of the second extension tube 63 is closer to the inner tube 22 than the water outlet end of the second extension tube 63, that is, the front end of the second extension tube 63 is higher and the rear end of the second extension tube 63 is lower, so that the front tube wall of the second extension tube 63 is located directly below the water outlet end of the first extension tube 62.

[0082] When the water flow rate is small and the water flow cannot fill the entire second extension tube 63, the water flow flowing out of the first extension tube 62 can directly impact the front tube wall of the second extension tube 63 and flow along the front tube wall of the second extension tube 63, reducing the probability of the water flow contacting the rear tube wall of the second extension tube 63.

[0083] The first protrusion 65 is disposed on the tube wall of the second extension tube 63 close to the inner tube 22 and has an opening close to the water outlet end of the second extension tube 63 so that water flowing out of the second extension tube 63 first flows through the first protrusion 65 and then flows through the third extension tube 64 .

[0084] Specifically, when the water flow is small and the water flow cannot fill the entire second extension tube 63 , the water flow impacting the front wall of the second extension tube 63 from the first extension tube 62 flows along the front wall of the second extension tube 63 and first flows into the first protrusion 65 .

[0085] The first blocking plate is connected to the end of the first protrusion 65 close to the outer tube 21 and extends along the height direction of the housing 1 to block the water in the first protrusion 65 from flowing toward the third extension tube 64 .

[0086] Specifically, when the water flows to the first protrusion 65 , the water is blocked by the first blocking plate, which reduces the probability of the water flowing backward, so that the water is concentrated on the first protrusion 65 and flows out.

[0087] The steam water outlet 67 is disposed on the side wall of the first protrusion 65 close to the inner cylinder 22 and is located at the air inlet end of the drying air duct 7 .

[0088] When the water flow is small and the water flow cannot fill the entire second extension pipe 63, a large amount of water flow is concentrated to impact the first protrusion 65. The first protrusion 65 is provided with a steam water outlet 67, which can make the water flow at the first protrusion 65 flow out from the steam water outlet 67. The steam water outlet 67 is located at the air inlet end of the drying air duct 7 to shorten the path of the water flow entering the drying air duct 7 and improve the success rate of the fan 41 sucking the water flow into the drying air duct 7, so that the fan 41 can suck more water flow into the drying air duct 7, further reducing the water flow spraying on the bottom surface 222 of the inner cylinder.

[0089] The spray water outlet 68 is disposed on the side wall of the third extension tube 64 close to the inner tube 22 .

[0090] When the water flow rate is large and the water flow can fill the first extension tube 62, the water flows out from the first extension tube 62 and can flow along the front side wall and the rear side wall of the second extension tube 63 at the same time. The water flows in the second extension tube 63 and can flow into the third extension tube 64 over the first blocking plate 66 and flow out from the spray water outlet 68 on the third extension tube 64. Since the spray water outlet 68 is provided on the front tube wall of the third extension tube 64 close to the inner tube bottom surface 222, the water flows out from the spray water outlet 68 and directly sprays to the inner tube bottom surface 222, which can have a good spraying effect on the inner tube bottom surface 222.

[0091] Steam care mode: the fan 41 runs, the steam water inlet valve 51 is opened, and the spray water inlet valve 52 is closed, so that water flows from the steam water inlet valve 51 to the nozzle 6, flows through the first protrusion 65 and flows out from the steam water outlet 67, and the fan 41 sucks the water flow into the drying air duct 7.

[0092] Specifically, when the fan 41 is running, the heating device is running. Water flows from the steam inlet valve 51 into the water outlet pipe 53 , flows through the first connecting pipe 43 , and then enters the nozzle 6 .

[0093] The water flows in the nozzle 6, first flows through the first water inlet pipe 61, and then flows to the first extension pipe 62. Since the diameter of the first extension pipe 62 is smaller than the diameter of the first water inlet pipe 61, the water flowing out of the first extension pipe 62 is thinner and more concentrated.

[0094] Since the front tube wall of the second extension tube 63 is located squarely to the water outlet end of the first extension tube 62, when the washing machine 100 runs the steam care mode, the water flow is small and cannot fill the second extension tube 63. The water flows out from the water outlet end of the first extension tube 62, directly impacts the front tube wall of the second extension tube 63, and flows along the front tube wall of the second extension tube 63 to the first protrusion 65, and is blocked by the first blocking plate 66 at the rear end of the first protrusion 65 to flow backward. The water flows out from the steam water outlet 67 of the first protrusion 65, and is sucked into the drying duct 7 by the fan 41, heated into hot steam in the drying duct 7, and flows into the inner drum 22 along the drying duct 7.

[0095] The third extension tube 64 of the washing machine 100 of the present application is arranged opposite to the bottom surface 222 of the inner drum, and is arranged at a position of the bottom surface 222 of the inner drum away from the inlet 12. The spray water outlet 68 is arranged on the third extension tube 64 so that the water flow sprayed from the spray water outlet 68 is directed toward the rear bottom surface of the inner drum 22.

[0096] The inner cylinder bottom surface 222 is provided with water-permeable holes, and the sprayed water can be directly sprayed into the water-permeable holes, so that the sprayed water can enter the inner cylinder 22 and effectively clean the inner cylinder bottom surface 222.

[0097] Spray water inlet mode: the fan 41 stops running, the spray water inlet valve 52 is opened, and the steam water inlet valve 51 is closed.

[0098] The water inlet rate per second of the steam water inlet valve 51 is L1, and the water inlet rate per second of the spray water inlet valve 52 is L2, where L1≤L2.

[0099] Specifically, when the spray water inlet valve 52 is opened and the steam water inlet valve 51 is closed, water flows through the water outlet pipe 53 into the first connecting pipe 43 and then flows into the spray head 6 .

[0100] Since the water inlet volume of the spray water inlet valve 52 is relatively large, the water flows through the first water inlet pipe 61 and then flows into the first extension pipe 62, and becomes a thinner water column from the water outlet end of the first extension pipe 62. Since the water inlet volume of the spray water inlet valve 52 is relatively large, the water can fill the second extension pipe 63, that is, the water flows out from the water outlet end of the first extension pipe 62, and can flow along the front and rear walls of the second extension pipe 63. A relatively large water flow surges in the second extension pipe 63, and can cross the first blocking plate 66 and surge into the third extension pipe 64. The water flows in the third extension pipe 64 and is sprayed out from the spray water outlet 68 on the pipe wall of the third extension pipe 64. The sprayed water flow is directly sprayed onto the bottom surface 222 of the inner cylinder, and has a good cleaning effect or cooling effect on the bottom surface 222 of the inner cylinder.

[0101] In the prior art, three methods have been adopted to improve the problem of water on the nozzle entering the inner drum. First, reduce the opening time of the water inlet valve, but the opening time of the water valve is limited by the required amount of steam and cannot be opened for too short a time. Reducing the opening time of the water valve cannot effectively solve the problem of water flowing out of the second outlet. Second, increase the fan speed. Increasing the fan speed can increase the amount of water sucked into the drying duct, but some water will also flow into the inner drum, which cannot fundamentally solve the problem. Third, increase the drying time. Increasing the drying time can dry the wet clothes in the inner drum, but it will cause the effect of steam care to deteriorate, the care time to become longer, and waste electricity.

[0102] Compared with the prior art, the nozzle is divided into a first water inlet pipe, a first extension pipe, a second extension pipe and a third extension pipe. The second extension pipe is tilted, the upper end of the second extension pipe is closer to the front relative to the lower end of the second extension pipe, and the second extension pipe is provided with a first protrusion. The lower end of the first extension pipe is arranged directly above the front tube wall of the second extension pipe, so that the water flowing out of the first extension pipe preferentially flows to the first protrusion of the front tube wall of the second extension pipe, and flows out through the steam water outlet arranged on the first protrusion. When the steam care mode is running, the steam water inlet valve is opened, and the water intake per second is L1, and the water volume is small, so that the water is likely to flow out from the steam water outlet. When the spray water inlet mode is running, the spray water inlet valve is opened, and the water intake per second is L2, L2 ≥ L1, so that the water intake is large, can pass the first blocking plate into the third extension pipe, and flow out from the spray water outlet. By setting a spray water inlet valve and a steam water inlet valve, it can be achieved that in the steam care mode, water can be sucked into the drying air duct with a high probability to reduce the probability of water spraying onto the bottom surface of the inner drum.

[0103] In some embodiments of the present application, when the ratio of the amount of water flowing out of the steam water outlet 67 to the total amount of water flowing into the nozzle 6 is n, n≥50%, the water inlet amount of the steam water inlet valve 51 is L0; L1≤L0.

[0104] It should be noted that, through experimental tests, when the ratio of the amount of water flowing out of the steam water outlet 67 to the total amount of water flowing into the nozzle 6 is n, the water inlet amount of the steam water inlet valve 51 is L0.

[0105] The water inlet volume of the steam water inlet valve 51 is set to L1≤L0 to make the water flow smaller. When water is sprayed out from the water outlet end of the first extension tube 62, a smaller water flow will flow along the front wall of the second extension tube 63, flow into the first protrusion 65, and flow out from the steam water outlet 67 on the first protrusion 65. The first blocking plate 66 can effectively block the water flow from flowing to the rear side, so that the water flow has a smaller probability of flowing into the third extension tube 64, further reducing the probability of the water flow flowing out from the spray water outlet 68 of the third extension tube 64.

[0106] In some embodiments of the present application, the washing machine 100 includes a top plate 31 and a base 32, the height direction of the shell 1 between the top plate 31 and the base 32 is a first direction, the first protrusion 65 includes a first side wall 651 and a second side wall 652, the first side wall 651 extends along the first direction, the second side wall 652 is the same as the extension direction of the second extension pipe 63, and the second side wall 652 is connected to the end of the first side wall 651 away from the first water inlet pipe 61.

[0107] Specifically, the first side wall 651 is provided with a steam water outlet 67 , and the second side wall 652 does not have any outlet. An accommodation portion is formed between the first side wall 651 , the second side wall 652 and the first blocking plate 66 .

[0108] When the water flows along the front wall of the second extension tube 63, the water flows into the accommodating portion and flows out from the steam water outlet 67. Since the first side wall 651 extends in the up-down direction and the first blocking plate 66 also extends in the up-down direction, the first side wall 651 and the first blocking plate 66 can limit the flow of water to the greatest extent.

[0109] Since the first side wall 651 extends in the up-down direction and the water in the accommodating portion has water pressure, the water flowing out of the steam water outlet 67 is sprayed to the front side under the action of the water pressure and can be more easily sucked into the air inlet end of the drying air duct 7.

[0110] In some embodiments of the present application, the first water inlet pipe 61 includes a first pipe section 611 and a tapered pipe 612 , and the first pipe section 611 has a fixed pipe diameter.

[0111] The reducer 612 includes a first reducer wall 6121 and a second reducer wall 6122 . The first reducer wall 6121 is close to the bottom surface 222 of the inner tube, and the diameter of the first reducer wall 6121 is d1 .

[0112] The second reducer wall 6122 is away from the inner tube bottom surface 222 , and has a diameter d2 . The diameter of the second reducer wall 6122 gradually decreases from a position close to the first pipe section 611 to a position away from the first pipe section 611 , and d2 ≤ d1 .

[0113] In some embodiments, the diameter d1 of the first reducer 612 wall is a fixed value. In other embodiments, the diameter d1 of the first reducer 612 wall is a variable value, and the diameter of the first reducer wall 6121 gradually decreases from a position close to the first pipe segment 611 to a position away from the first pipe segment 611.

[0114] When the water flows in the reducer 612 , the water flow gradually becomes thinner under the guidance of the reducer 612 to reduce the pressure of the water flow on the wall of the reducer 612 , thereby extending the service life of the first water inlet pipe 61 .

[0115] The wall of the second tapered tube 612 also has a guiding effect on the flow of water. When the water flows along the wall of the second tapered tube 612, the water tends to flow forward, so that the water impacts the front side wall of the first extension tube 62, and flows along the front side wall of the first extension tube 62 to the front side wall of the second extension tube 63, so that the water can flow into the first protrusion 65 with a greater probability.

[0116] In some embodiments of the present application, the housing 1 has a first side surface 11 with a delivery port 12, and the projection of the first blocking plate 66 on the first side surface 11 can cover the projection of the steam water outlet 67 on the first side surface 11. That is, the upper end of the first blocking plate 66 is higher than the steam water outlet 67.

[0117] Specifically, when water flows into the receiving portion, the water is stored inside the receiving portion, and when the water flows to the steam water outlet 67, the water flows out from the steam water outlet 67. Since the aperture of the steam water outlet 67 is small, sometimes the water flows into the receiving portion continuously. The upper end of the first blocking plate 66 of the present application is higher than the steam water outlet 67, so that the water can be temporarily stored in the receiving portion to increase the storage capacity of the receiving portion, and the water level can be higher than the steam water outlet 67, so that the water has a greater probability of flowing out from the steam water outlet 67 of the first protrusion 65.

[0118] When the steam water inlet valve 51 is closed, the last remaining amount of water flowing out from the steam water inlet valve 51 can be more stored in the accommodation portion, so that more water can flow out from the steam water outlet 67 .

[0119] In some embodiments of the present application, the washing machine 100 includes a top plate 31 and a base 32 , and a height direction of the housing 1 between the top plate 31 and the base 32 is a first direction.

[0120] A second blocking plate 69 is disposed on the tube wall of the first extension tube 62 . The second blocking plate 69 extends along the first direction to guide the water flowing in the first extension tube 62 to flow toward the first protrusion 65 .

[0121] Specifically, when water flows into the first extension tube 62, part of the water will flow along the rear wall of the first extension tube 62. If the second blocking plate 69 is not provided, when the water flows along the rear wall of the first extension tube 62, it is highly likely that the water will continue to flow along the rear wall of the second extension tube 63, and finally flow into the third extension tube 64, and the water will flow out from the spray water outlet 68 of the third extension tube 64, causing the clothes in the inner drum 22 to be wet.

[0122] When a second baffle plate 69 is provided on the rear tube wall of the first extension tube 62, the second baffle plate 69 extends in the up and down directions so that the water flowing along the rear tube wall of the first extension tube 62 flows toward the lower side along the second baffle plate 69. The second baffle plate 69 is provided directly above the first protrusion 65 so that the water flows directly into the first protrusion 65.

[0123] In some embodiments of the present application, the nozzle 6 and the water outlet pipe 53 are connected through a first connecting pipe 43. The first connecting pipe 43 is arranged in the fan mounting base 42. The upper end of the first connecting pipe 43 is connected to the water outlet pipe 53, and the lower end of the first connecting pipe 43 is connected to the nozzle 6, so that the nozzle 6 and the water outlet pipe 53 can easily find the installation position during the installation process.

[0124] In some embodiments of the present application, a first installation space 23 is provided between the bottom surface 222 of the inner cylinder and the outer cylinder 21 , the air inlet end of the drying air duct 7 is connected to the first installation space 23 , and the air outlet end of the drying air duct 7 is connected to the inner cylinder 22 .

[0125] A heating device is provided inside the drying air duct 7. When the fan 41 is running and sucks water into the drying air duct 7, the heating device is running to heat the water entering the drying air duct 7 into hot steam.

[0126] In some embodiments of the present application, the washing machine 100 includes a top plate 31 and a base 32, and the height direction of the shell 1 between the top plate 31 and the base 32 is a first direction. The first extension pipe 62 and the third extension pipe 64 both extend along the first direction so that the water flow can flow directly downward under the action of gravity, reducing the impact of the water flow on the first extension pipe 62 and the third extension pipe 64, thereby making the nozzle 6 more durable.

[0127] In some embodiments of the present application, the steam water outlet 67 has one or more water outlets so that the water flow is divided into multiple small water flows and sprayed to the air inlet end of the drying duct 7, so that the weight of the small water flow is smaller and it is easier to be sucked into the drying duct 7 by the fan 41, and the water flow with smaller weight is easier to form hot steam under the heating of the heating device.

[0128] The spray water outlet 68 has one or more, and multiple spray water outlets 68 spray water toward the inner cylinder bottom surface 222, which can make the spray effect of the inner cylinder bottom surface 222 better, so that the water can contact the inner cylinder bottom surface 222 with a large area, the cleaning effect of the inner cylinder bottom surface 222 is better, and the inner cylinder bottom surface 222 can be cooled faster.

[0129] The spray water outlet 68 is a flat port. Compared with a round hole, the water flow sprayed from the flat port is flatter and the area of ​​the spray water outlet 68 is increased so that the water flow can quickly flow out from the spray water outlet 68 to the bottom surface 222 of the inner cylinder.

[0130] In some embodiments of the present application, the first side wall 651 and the second side wall 652 of the first protrusion 65 are flat plates, which can make the water pressure on the first side wall 651 more uniform, so that the water flows out of the steam water outlet 67 on the first side wall 651 more orderly.

[0131] In some embodiments of the present application, the front side wall of the third extension tube 64 is a straight plate, so that the water flowing in the third extension tube 64 flows more evenly on the front side wall of the third extension tube 64, so that the water flows out of the spray water outlet 68 on the front side wall of the third extension tube 64 more orderly.

[0132] In some embodiments of the present application, a one-way valve 8 is connected between the port at the first end of the water outlet pipe 53 and the steam water inlet valve 51 , and a one-way valve 8 is connected between the port at the first end of the water outlet pipe 53 and the spray water inlet valve 52 .

[0133] When the bottom surface 222 of the inner cylinder needs to be sprayed, the steam water inlet valve 51 and the spray water inlet valve 52 can be opened at the same time to increase the amount of water sprayed from the nozzle 6. Since the first end of the water outlet pipe 53 is connected to the one-way valve 8, water can only flow from the steam water inlet valve 51 to the water outlet pipe 53, and water can only flow from the spray water inlet valve 52 to the water outlet pipe 53, so as to avoid water backflowing into the spray water inlet valve 52 / steam water inlet valve 51.

[0134] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A washing machine, characterized in that: include: A housing, wherein the housing is provided with a delivery port; An outer cylinder, which is arranged in the shell; An inner cylinder, which is arranged in the outer cylinder, and the inner cylinder includes an inner cylinder bottom surface; A fan, wherein a fan cavity communicating with the drying air duct is formed in the housing, and the fan is arranged in the fan cavity; A steam inlet valve connected to a water source; A sprinkler water inlet valve connected to a water source; A water outlet pipe, wherein the first end of the water outlet pipe has at least two branch pipes, and the two branch pipes are respectively connected to the spray water inlet valve and the steam water inlet valve; A nozzle connected to the second end of the water outlet pipe, the nozzle comprising a first water inlet pipe, a first extension pipe, a second extension pipe and a third extension pipe which gradually move away from the water outlet pipe; The extension direction of the second extension tube is arranged at an angle with the height direction of the shell; a first protrusion, which is disposed on the tube wall of the second extension tube and has an opening close to the water outlet end of the second extension tube, so that water flowing out of the second extension tube first flows through the first protrusion and then flows through the third extension tube; a first blocking plate connected to one end of the first protruding portion, disposed at a connection between the second extension tube and the third extension tube, and extending along a height direction of the housing to block water in the first protruding portion from flowing toward the third extension tube; A steam water outlet, which is arranged on the side wall of the first protrusion and is arranged close to the air inlet end of the drying air duct; A spray water outlet, which is provided on the side wall of the third extension tube close to the inner tube; Steam care mode: the fan is running, the steam water inlet valve is opened, and the spray water inlet valve is closed, so that water flows from the steam water inlet valve to the nozzle, flows through the first protrusion and flows out from the steam water outlet, and the fan sucks the water flow into the drying air duct.

2. The washing machine according to claim 1, characterized in that: The third extension pipe is arranged opposite to the bottom surface of the inner cylinder and is arranged at a position of the bottom surface of the inner cylinder away from the injection port; a water permeable hole is arranged on the bottom surface of the inner cylinder; Spray water inlet mode: the fan stops running, the spray water inlet valve is opened, and the steam water inlet valve is closed; The water inlet volume per second of the steam water inlet valve is L1, and the water inlet volume per second of the spray water inlet valve is L2, where L1≤L2.

3. The washing machine according to claim 2, characterized in that: When the ratio of the amount of water flowing out of the steam water outlet to the total amount of water flowing into the nozzle is n, n≥50%, the water inlet amount of the steam water inlet valve is LO; L1≤LO.

4. The washing machine according to claim 1, 2 or 3, characterized in that: The washing machine includes a top plate and a base, the height direction of the shell between the top plate and the base is a first direction, the first protrusion includes a first side wall and a second side wall, the first side wall extends along the first direction, the second side wall is the same as the extension direction of the second extension pipe, and the second side wall is connected to an end of the first side wall away from the first water inlet pipe.

5. The washing machine according to claim 1, 2 or 3, characterized in that: The diameter of the first extension pipe is smaller than the diameter of the first water inlet pipe; the first water inlet pipe includes a first pipe section and a reducer, and the reducer includes: A first reducer pipe wall, which is close to the bottom surface of the inner tube, and the diameter of the first reducer pipe wall is d1; The second reducer tube wall is far away from the bottom surface of the inner tube, and the diameter of the second reducer tube wall is d2. The diameter of the second reducer tube wall gradually decreases from a position close to the first tube section to a position far away from the first tube section, and d2≤d1.

6. The washing machine according to claim 4, characterized in that: The diameter of the first extension pipe is smaller than the diameter of the first water inlet pipe; the first water inlet pipe includes a first pipe section and a reducer, and the reducer includes: A first reducer pipe wall, which is close to the bottom surface of the inner tube, and the diameter of the first reducer pipe wall is d1; The second reducer tube wall is far away from the bottom surface of the inner tube, and the diameter of the second reducer tube wall is d2. The diameter of the second reducer tube wall gradually decreases from a position close to the first tube section to a position far away from the first tube section, and d2≤d1.

7. The washing machine according to claim 1, 2 or 3, characterized in that: The shell has a first side surface provided with the injection port, and a projection of the first blocking plate on the first side surface can cover a projection of the steam water outlet on the first side surface.

8. The washing machine according to claim 4, characterized in that: The shell has a first side surface provided with the injection port, and a projection of the first blocking plate on the first side surface can cover a projection of the steam water outlet on the first side surface.

9. The washing machine according to claim 5, characterized in that: The shell has a first side surface provided with the injection port, and a projection of the first blocking plate on the first side surface can cover a projection of the steam water outlet on the first side surface.

10. The washing machine according to claim 1, 2 or 3, characterized in that: The washing machine comprises a top plate and a base, and the height direction of the housing between the top plate and the base is a first direction; A second blocking plate is disposed on the tube wall of the first extension tube, and the second blocking plate extends along a first direction to guide water flowing in the first extension tube to flow toward the first protrusion.

11. The washing machine according to claim 4, characterized in that: The washing machine comprises a top plate and a base, and the height direction of the housing between the top plate and the base is a first direction; A second blocking plate is disposed on the tube wall of the first extension tube, and the second blocking plate extends along a first direction to guide water flowing in the first extension tube to flow toward the first protrusion.

12. The washing machine according to claim 1, characterized in that: The nozzle is connected to the water outlet pipe via a first connecting pipe, which is disposed in the fan mounting seat, with the upper end of the first connecting pipe connected to the water outlet pipe and the lower end of the first connecting pipe connected to the nozzle.

13. The washing machine according to claim 1, characterized in that: A first installation space is provided between the bottom surface of the inner cylinder and the outer cylinder, the air inlet end of the drying air duct is connected to the first installation space, and the air outlet end of the drying air duct is connected to the inner cylinder; A heating device is provided inside the drying air duct. When the fan is running and sucks water into the drying air duct, the heating device is running to heat the water entering the drying air duct into hot steam.

14. The washing machine according to claim 1, characterized in that: The washing machine includes a top plate and a base, the height direction of the shell between the top plate and the base is a first direction, the first extension tube and the third extension tube both extend along the first direction, there are one or more steam water outlets, and there are one or more spray water outlets.

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