Drum washing machine

Abstract

The present application provides a kind of drum washing machine, including drum assembly, drum assembly includes outer cylinder and inner cylinder in it, door seal is provided on the cylinder mouth of outer cylinder, drum washing machine further includes: spray assembly, set on the top area of door seal, including spray head, spray head has first water outlet, with the orientation of drum washing machine in use state as reference, first water outlet extends along up and down direction, so that the water curtain that first water outlet sprays extends on vertical plane, first water outlet has first spray part that sprays towards the washing space side of inner cylinder, the up and down extension length of first spray part is greater than the left and right width of first spray part, and the left and right width of first spray part is smaller and smaller from bottom to top.The present application effectively guarantees the washing effect of clothes, effectively overcome the deficiency that the water curtain of substantially horizontal fan shape in prior art cannot effectively cover the clothes in the lower area of inner cylinder, leading to poor washing effect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing machine design, and particularly relates to a drum washing machine. BACKGROUND

[0002] Now there are some washing machines on the market with clothes spraying washing function, such as the patent with the application number CN201210104935, which discloses a drum washing machine washing control method and drum washing machine, which specifically adopts a fan-shaped spraying structure nozzle towards the inside of the drum to realize the water curtain sprayed by the nozzle to cover from the front part of the drum to the rear part of the drum through the specific structure design of the nozzle. However, the flat fan-shaped feature of the nozzle in the patent combined with the height difference design of the left and right sides makes the fan-shaped water curtain formed by the nozzle too twisted, which can realize full coverage from the front part of the drum to the rear part of the drum, but cannot realize full coverage of the area where the clothes fall on the lower cylinder wall of the drum (inner cylinder). For the clothes with small lifting height close to the front part of the drum, the part sprayed by the active water is small or even cannot be sprayed, which greatly reduces the washing effect of this part of clothes. SUMMARY

[0003] Therefore, the present application provides a drum washing machine which can solve the technical problem that the nozzle structure of the spraying structure in the prior art cannot fully spray the area where the clothes fall on the lower cylinder wall of the drum, resulting in poor washing effect of the clothes in this area.

[0004] In order to solve the above problems, the present application provides a drum washing machine, which comprises a drum assembly, the drum assembly comprising an outer cylinder and an inner cylinder in the outer cylinder, a door seal being arranged on the cylinder port of the outer cylinder, and the drum washing machine further comprising:

[0005] a spraying assembly arranged on the top area of the door seal, comprising a spraying head, the spraying head having a first water outlet, with the orientation of the drum washing machine in the use state as the reference, the first water outlet extending along the up-down direction so that the water curtain sprayed by the first water outlet extends in the vertical plane, the first water outlet having a first spraying part spraying towards one side of the washing space of the inner cylinder, the up-down extension length of the first spraying part being greater than the left-right width of the first spraying part, and the left-right width of the first spraying part becoming smaller and smaller from bottom to top.

[0006] In some embodiments,

[0007] The drum washing machine further comprises a sealing door window, the sealing door window is arranged in sealing cooperation with the door, the first water spraying port further has a second spraying part spraying toward the top surface of the sealing door window, the up-down extension length of the second spraying part is greater than the left-right width of the second spraying part, the up-down extension length of the second spraying part is less than the up-down extension length of the first spraying part, and the maximum left-right width of the second spraying part is less than the maximum left-right width of the first spraying part.

[0008] In some embodiments,

[0009] The lower end of the first spraying part is communicated with the upper end of the second spraying part, and the maximum left-right width of the first spraying part is 1 / 3 of the up-down extension length of the first water spraying port; and / or, the maximum left-right width of the first spraying part is 2 to 3 times of the maximum left-right width of the second spraying part.

[0010] In some embodiments,

[0011] The up-down extension length of the first water spraying port is 5mm-6mm, the maximum left-right width of the first water spraying port is 2.5mm-3.5mm, and the water inlet pressure of the spraying head is 0.1MPa-0.24MPa.

[0012] In some embodiments,

[0013] The left-right width of the second spraying part decreases from top to bottom.

[0014] In some embodiments,

[0015] The first water spraying port is arranged on the axial end surface of the spraying head, and a water curtain diffusion groove is further arranged on the axial end surface, and the water curtain diffusion groove surrounds the first water spraying port.

[0016] In some embodiments,

[0017] The slot section of the water curtain diffusion groove is V-shaped, the water curtain diffusion groove has a first diffusion section corresponding to the first spraying part and a second diffusion section corresponding to the second spraying part, the diffusion angle of the first diffusion section is a, the diffusion angle of the second diffusion section is b, the inner diameter of the washing space of the inner cylinder is d, a is equal to d, and / or the product of b and d is equal to the arc length of the cylinder wall between adjacent two lifting ribs on the inner cylinder.

[0018] In some embodiments,

[0019] The spray head is a hollow sleeve structure, one end of the hollow sleeve structure is the axial end face, the other end is connected with the water inlet connecting pipe, the second water outlet is formed on the circumferential side wall of the hollow sleeve structure and communicates with the hollow cavity of the hollow sleeve structure, the second water outlet has two, and the two second water outlets are respectively located on the left and right sides of the second spray part.

[0020] In some embodiments,

[0021] The spray head and the water inlet connecting pipe are connected through a buckle structure, the buckle structure includes a clamping protrusion formed on the outer circumferential wall of the water inlet connecting pipe and a clamping groove formed on the hollow cylinder wall of the spray head, and the clamping protrusion can rotate by a preset angle along the circumference of the water inlet connecting pipe in the clamping groove.

[0022] In some embodiments,

[0023] The spray head and the water inlet connecting pipe are also connected through a positioning structure, the positioning structure includes a positioning protrusion formed on the outer circumferential wall of the water inlet connecting pipe and a positioning groove formed on the hollow cylinder wall of the spray head, and when the clamping protrusion rotates by the preset angle in the clamping groove, the positioning protrusion is embedded in the positioning groove.

[0024] In some embodiments,

[0025] The first water outlet is formed by a combination of a first elliptical hole and a second elliptical hole, wherein the major axis of the first elliptical hole is larger than the major axis of the second elliptical hole, the minor axis of the first elliptical hole is larger than the minor axis of the second elliptical hole, and the major axis of the first elliptical hole and the major axis of the second elliptical hole have an overlapping segment, part of the first elliptical hole forms the first spray part, part of the second elliptical hole forms the second spray part, and the intersection of the first elliptical hole and the second elliptical hole is smoothly connected.

[0026] The drum washing machine provided by the application has the following beneficial effects:

[0027] The spray head has a first water outlet extending in the up-down direction, which can form a water curtain extending in a vertical plane, thereby forming comprehensive coverage from the front to the back of the bottom wall area of the inner drum (i.e., the area below the inner drum), and the left-right width of the first spray part decreases from bottom to top, which ensures reasonable distribution of the spray water volume from the front to the back of the inner drum, thereby ensuring a large spray volume of the clothes near the sealing door and window, effectively ensuring the washing effect of the clothes, and effectively overcoming the poor washing effect caused by the fact that the substantially horizontal fan-shaped water curtain in the prior art cannot effectively cover the clothes in the bottom area of the inner drum. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those skilled in the field, other drawings can be obtained from the provided drawings without any creative effort.

[0029] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the conditions that the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects that the present application can produce and the purposes that the present application can achieve, should still fall within the scope of the technical content disclosed by the present application.

[0030] Figure 1 The internal structure diagram of the drum washing machine in the embodiment of the present application (part of irrelevant parts, such as the washing machine shell, is omitted);

[0031] Figure 2 The partial enlarged view of A in the embodiment of the present application; Figure 1

[0032] Figure 3 The front view of the spray head in the embodiment of the present application (along the axial direction of the spray head, from the outside to the inside, that is, in the opposite direction of the spray direction);

[0033] Figure 4 The exploded structure diagram of the spray assembly in the embodiment of the present application;

[0034] Figure 5 The perspective structure diagram of the spray assembly in the embodiment of the present application (front view, that is, the spray direction of the spray water facing the first spray port);

[0035] Figure 6 The perspective structure diagram of the spray assembly in the embodiment of the present application (back view, that is, along the spray direction of the first spray port);

[0036] Figure 7 The exploded structure diagram of the spray assembly in the embodiment of the present application from another perspective;

[0037] Figure 8 The coverage area diagram of the vertical extension water curtain formed by the first spray part in the spray assembly in the drum washing machine in the embodiment of the present application.

[0038] The signs are represented as:

[0039] ​1, spray head; 11, first water outlet; 111, first spray part; 112, second spray part; 113, water curtain diffusion groove; 12, second water outlet; 131, clamping groove;

[0040] 132, positioning groove; 2, water inlet connecting pipe; 21, clamping convex; 22, positioning convex; 23, ring groove; 3, sealing ring; 100, inner cylinder; 200, outer cylinder; 201, door seal; 300, sealing door and window. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative in nature and by no means as any limitation to the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0042] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0043] It should be understood that the term "and / or" used herein is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0044] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0045] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0046] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0047] In addition, it should be noted that the use of the terms "first", "second", and the like do not have a special meaning, and are used only to facilitate the distinction between corresponding parts, and therefore cannot be construed as limiting the scope of protection of the present application.

[0048] With reference to Figures 1 to 8As shown, according to the embodiment of the present application, a drum washing machine is provided, which comprises a drum assembly including an outer drum 200 and an inner drum 100 in the outer drum 200, and a door seal 201 provided on the drum opening of the outer drum 200, and further comprises a spraying assembly (not shown in the figure) provided on the top area of the door seal 201, which comprises a spraying head 1 having a first water spraying port 11, and the first water spraying port 11 extends along the up-down direction, so that the water curtain sprayed by the first water spraying port 11 extends in the vertical plane, as shown in the figure. Figure 1 As shown in the state, the user faces the sealing door window 300 of the drum washing machine and sees the orientation, and the first water spraying port 11 extends along the up-down direction, so that the water curtain sprayed by the first water spraying port 11 extends in the vertical plane, as shown in the figure. Figure 8 As shown, the first water spraying port 11 has a first spraying part 111 spraying towards the washing space side of the inner drum 100, that is, the water sprayed by the first spraying part 111 can enter the washing space of the inner drum 100, and the up-down extension length of the first spraying part 111 is greater than the left-right width of the first spraying part 111, and the left-right width of the first spraying part 111 decreases from bottom to top, so that the water amount of the spraying water of the first spraying part 111 decreases from the front part of the inner drum 100 (that is, the end close to the sealing door window 300) to the rear part.

[0049] In this technical solution, the spraying head 1 has the first water spraying port 11 extending along the up-down direction, which can form a water curtain extending in the vertical plane, so that the bottom wall area of the inner drum 100 (that is, the area below the inner drum) can be fully covered from the front part to the rear part, and the left-right width of the first spraying part 111 decreasing from bottom to top ensures the reasonable distribution of the spraying water amount from the front part to the rear part of the inner drum 100, which can ensure the large spraying amount of the clothes close to the sealing door window 300, thereby effectively ensuring the washing effect of the clothes and overcoming the poor washing effect caused by the fact that the substantially horizontal fan-shaped water curtain in the prior art cannot effectively cover the clothes in the area below the inner drum 100.

[0050] As shown in the figure, the first water spraying port 11 has a first spraying part 111 spraying towards the washing space side of the inner drum 100, that is, the water sprayed by the first spraying part 111 can enter the washing space of the inner drum 100, and the up-down extension length of the first spraying part 111 is greater than the left-right width of the first spraying part 111, and the left-right width of the first spraying part 111 decreases from bottom to top, so that the water amount of the spraying water of the first spraying part 111 decreases from the front part of the inner drum 100 (that is, the end close to the sealing door window 300) to the rear part. Figure 8 As shown, the spraying water sprayed by the first spraying part 111 can be sprayed to the rear part of the inner drum 100 at the upper end (that is, the top end), and the spraying water sprayed at the lower end (that is, the bottom end) can be sprayed to the front part of the inner drum 100, which can realize the full coverage of the front-rear axial direction of the inner drum 100, and especially ensure the sufficient spraying of the clothes in the front lower area of the inner drum 100, thereby ensuring the clothes washing effect. Further referring to the figure, Figure 8As shown, the rear part of the inner drum 100 needs to be connected with the driving motor, so the bottom wall of the inner drum 100 protrudes towards the side of the drum opening of the inner drum 100. When the washing space is less occupied by clothes, the clothes will mainly concentrate on the front part of the inner drum 100, and when the clothes are heavy, the clothes will especially concentrate on the lower area of the front part of the inner drum 100. The vertical water curtain of the present application is especially matched with the water distribution in this working condition, and the clothes washing effect is better.

[0051] As described above, the drum washing machine further comprises a sealing door window 300 which is arranged in cooperation with the door seal 201, and the two together realize the sealing of the drum opening of the outer drum 200. The first water spraying opening 11 further has a second spraying part 112 which sprays towards the top surface of the sealing door window 300. The up-down extension length of the second spraying part 112 is greater than its left-right width, and the up-down extension length of the second spraying part 112 is less than the up-down extension length of the first spraying part 111. The maximum left-right width of the second spraying part 112 is less than the maximum left-right width of the first spraying part 111.

[0052] In the technical solution, the first water spraying opening 11 further has a second spraying part 112 which is arranged for the sealing door window 300. The second spraying part 112 can form flushing on the top surface of the sealing door window 300, prevent the retention of washing liquid foam on the top surface of the sealing door window 300, and ensure the cleanliness of washing. At the same time, by limiting the left-right width of the two spraying parts, the spraying water amount of the first water spraying opening 11 is reasonably distributed between the inner drum 100 and the sealing door window 300, the adverse effect of the spraying amount of the second spraying part 112 on the first spraying part 111 is prevented, and sufficient spraying on the clothes is ensured.

[0053] In a preferred embodiment, the lower end of the first spraying part 111 communicates with the upper end of the second spraying part 112, that is, the first spraying part 111 and the second spraying part 112 are objectively different parts of one through hole, and the size and shape of the two parts are different. The maximum left-right width of the first spraying part 111 is 1 / 3 of the up-down extension length of the first water spraying opening 11. It is verified by experiments that when the above-mentioned limitation is met, the water amount for spraying the clothes is required. If it is higher than 1 / 3, the water amount for spraying the clothes will be low, and if it is lower than 1 / 3, the spraying area of the door window will be too small. And / or, the maximum left-right width of the first spraying part 111 is 2 to 3 times of the maximum left-right width of the second spraying part 112, so as to prevent the too large spraying amount of the second spraying part 112 from affecting the spraying amount of the first spraying part 111.

[0054] In one specific embodiment, the first water outlet 11 has an up-down length of 5-6 mm, a maximum left-right width of 2.5-3.5 mm (preferably 3 mm), and the water inlet pressure of the spray head 1 is 0.1-0.24 MPa. In this technical solution, under the aforementioned water inlet pressure and the size of the first water outlet 11, it has been verified through tests that the water curtain formed is relatively stable and can effectively avoid atomization of the sprayed water, thereby ensuring the washing effect. Specifically, the water flow sprayed by the first water outlet 11 of the spray head with the aforementioned size can form a water curtain covering the entire washing inner drum body at the minimum water inlet pressure of 0.1 MPa; at the maximum water inlet pressure of 0.24 MPa, the water flow sprayed by the first water outlet 11 can form a stable water curtain without atomization, and the water curtain width (front and back) can still cover the entire washing inner drum body.

[0055] In one preferred embodiment, the left-right width of the second outlet portion 112 decreases from top to bottom, so that the water curtain sprayed at the second outlet portion 112 decreases from top to bottom, thereby ensuring more sufficient flushing of the area of the sealing door and window 300 close to the clothes side, preventing accumulation of washing liquid foam on the sealing door and window 300.

[0056] In one preferred embodiment, as shown in Figure 6 The spray head 1 is a hollow sleeve structure, one end of which is an axial end face, and the other end is connected with the water inlet connecting pipe 2. The second water outlet 12 is formed on the circumferential side wall of the hollow sleeve structure and communicates with the hollow cavity of the hollow sleeve structure. The second water outlet 12 has two, and the two second water outlets 12 are respectively located on the left and right sides of the second outlet portion 112. Thus, under the joint action of the second outlet portion 112 and the two second water outlets 12, a larger area of the top surface of the sealing door and window 300 is covered, thereby further improving the flushing effect of the washing liquid foam thereon. It can be understood that since the second outlet portion 112 is relatively close to the sealing door and window 300 below, and in order not to reduce the water amount of the first outlet portion 111, the water amount of the second outlet portion 112 is small, and the range of the flip sealing door and window 300 is also relatively small. At this time, in combination with the second water outlets 12 on the left and right sides, the top surface of the sealing door and window 300 can be more comprehensively covered, thereby ensuring sufficient cleaning thereof.

[0057] Preferably, the two second water outlets 12 are located on the side of the circumferential side wall of the hollow sleeve structure facing the sealing door and window 300, and are preferably symmetrically located on both sides of the second spray part 112. As known, the top surface of the sealing door and window 300 is a gradually decreasing inclined surface inclined to one side of the inner cylinder 100, and the water sprayed thereon will be further guided into the inner cylinder 100 after washing, so that the part of the water can be used again (especially in the rinsing and dehydration process).

[0058] In order to ensure that the water curtain extending in the vertical plane sprayed by the spray head 1 can be maximally located in the lower area wall of the inner cylinder 100 (i.e. the area where the clothes fall after being lifted), in a preferred embodiment, the top area specifically refers to a central angle range of 10° on both sides of the vertical line passing through the rotation center of the inner cylinder 100 in the axial projection of the inner cylinder 100 (the center angle corresponds to the center of the inner cylinder 100). Preferably, the central symmetry plane of the spray head 1, i.e. the symmetry plane of the left and right widths of the first water outlet 11, is coplanar with the vertical symmetry plane of the inner cylinder 100. The deflection angle of the spray head 1 in the vertical symmetry plane can be determined according to the upper and lower limits of the water curtain extending in the vertical plane formed under the predetermined water inlet pressure, which at least covers the axial length of the front (cylinder opening) to the rear (cylinder bottom) of the inner cylinder 100. The determination process can be obtained by specific test means.

[0059] In some embodiments,

[0060] The first water outlet 11 is configured on the axial end surface of the spray head 1, and a water curtain diffusion groove 113 is also configured on the axial end surface, which is arranged around the first water outlet 11. The water curtain diffusion groove 113 can make the formed water curtain have a certain width through the injection effect, so as to form a larger area of coverage in the diameter direction of the inner cylinder 100, and further improve the washing effect. It can be understood that the water curtain diffusion groove 113 has a diffusion angle that increases along the water curtain spray direction. In a specific embodiment, the groove section (cross section, see Figure 6 ) of the water curtain diffusion groove 113 is V-shaped, the water curtain diffusion groove 113 has a first diffusion section corresponding to the first spray part 111 and a second diffusion section corresponding to the second spray part 112, the diffusion angle of the first diffusion section is a, the diffusion angle of the second diffusion section is b, the inner diameter of the washing space of the inner cylinder 100 is d, a is equal to d, and / or the product of b and d is equal to the arc length of the cylinder wall between the adjacent two lifting ribs on the inner cylinder 100, so that the water curtain width can be matched with the clothes falling area of the lower wall of the inner cylinder 100.

[0061] Specifically,Figure 7 As shown, the spray head 1 is connected with the water inlet connecting pipe 2 through a buckle structure (not labeled in the figure), which includes a clamping protrusion 21 formed on the outer circumferential wall of the water inlet connecting pipe 2 and a clamping groove 131 formed on the hollow cylindrical wall of the spray head 1. The clamping protrusion 21 can rotate a preset angle (for example, 90°) along the circumference of the water inlet connecting pipe 2 in the clamping groove 131. Specifically, the clamping protrusion 21 and the clamping groove 131 can be in interference fit. The buckle structure realizes quick connection between the water inlet connecting pipe 2 and the spray head 1, which is simple and convenient.

[0062] Further, the spray head 1 and the water inlet connecting pipe 2 are also connected through a positioning structure (not labeled in the figure), which includes a positioning protrusion 22 formed on the outer circumferential wall of the water inlet connecting pipe 2 and a positioning groove 132 formed on the hollow cylindrical wall of the spray head 1. When the clamping protrusion 21 rotates the preset angle in the clamping groove 131, the positioning protrusion 22 is embedded in the positioning groove 132, thereby further ensuring the connection reliability between the spray head 1 and the water inlet connecting pipe 2.

[0063] The water inlet connecting pipe 2 also has a ring groove 23 for accommodating a sealing ring 3, thereby ensuring the sealing of the joint position between the spray head 1 and the water inlet connecting pipe 2 and ensuring the reliable stability of the water pressure.

[0064] Specifically referring to Figure 3 As shown, the first water outlet 11 is formed by a combination of a first elliptical hole and a second elliptical hole. The long axis of the first elliptical hole is larger than the long axis of the second elliptical hole, the short axis of the first elliptical hole is larger than the short axis of the second elliptical hole, and the long axis of the first elliptical hole and the long axis of the second elliptical hole have an overlapping segment. Part of the first elliptical hole forms the first spray part 111, part of the second elliptical hole forms the second spray part 112, and the intersection of the first elliptical hole and the second elliptical hole is connected smoothly.

[0065] In this technical solution, the shape of the first water outlet 11 is designed as a long circle with a relatively smooth contour, which can ensure the quality of the water curtain and reduce the amount of water mist in the water curtain.

[0066] The technical scheme of the present application can wash clothes and seal doors and windows simultaneously by means of the active water spray washing, so that no special parts for cleaning the seal doors and windows are needed in the structure of the washing machine, and the design of the washing program is simplified, and the production cost is reduced. The active water spray washing can achieve the corresponding washing effect under the condition that the water consumption is less than that of the ordinary rinsing, so as to reduce the use cost of the user. In addition, different from the traditional washing mode of water injection and then dehydration, the spray head in the present application can spray the clothes during the dehydration process of the clothes, so that the clean spray water penetrates the clothes under the action of the centrifugal force, and the stains or detergent residues are taken away (this process replaces the rinsing process, and the system has the experimental conclusion that the effect is better than that of the ordinary rinsing), because the water consumption of the spraying is less than that of the rinsing, and the spraying water process is the washing process, so the traditional rinsing process is omitted, so the present application has the effects of high efficiency, energy saving and time saving.

[0067] When the spray head 1 works, that is, the washing program starts, the water flow is sprayed out through the first water spraying port 11. Due to the shape of the opening of the first water spraying port 11, most of the water flow is sprayed on the clothes, and at the same time, the washing drum (that is, the aforementioned inner drum 100) drives the clothes to rotate, so as to complete the active water spray washing; and a small amount of water flow is sprayed on the seal door and window 300. Since the overall structure of the seal door and window extends into the drum, the upper part thereof is a chamfered surface, and the water flow sprayed by the spray head 1 hits the chamfered surface of the seal door and window, and the water flow spreads along the chamfered surface, and the two aforementioned second water spraying ports 12 can cover the entire door and window, so as to wash away the residues such as foam on the door and window. Since the clothes in the drum are randomly distributed in the drum during the washing of the washing machine, the spray water curtain needs to completely cover the entire drum body to achieve a better washing effect.

[0068] The above only describes the preferred embodiments of the present application and should not be used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The above only describes the preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, without departing from the technical principle of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A drum washing machine, comprising a drum assembly, wherein the drum assembly comprises an outer drum (200) and an inner drum (100) located therein, wherein a door seal (201) is provided on the drum opening of the outer drum (200), and wherein: The drum washing machine further comprises: A spray assembly is provided on the top area of ​​the door seal (201), comprising a spray head (1), the spray head (1) having a first water spray port (11), with reference to the orientation of the drum washing machine in use, the first water spray port (11) extending in an up-down direction so that a water curtain sprayed from the first water spray port (11) extends on a vertical plane, the first water spray port (11) having a first spray portion (111) spraying toward one side of the washing space of the inner drum (100), the up-down extension length of the first spray portion (111) being greater than the left-right width of the first spray portion (111), and the left-right width of the first spray portion (111) becoming smaller from bottom to top; The drum washing machine further comprises a sealing door and window (300), wherein the sealing door and window (300) is arranged in cooperation with the door seal (201); the first water spraying port (11) further comprises a second spraying portion (112) for spraying towards the top surface of the sealing door and window (300); the vertical extension length of the second spraying portion (112) is greater than the horizontal width thereof, and the vertical extension length of the second spraying portion (112) is less than the vertical extension length of the first spraying portion (111); the maximum horizontal width of the second spraying portion (112) is less than the maximum horizontal width of the first spraying portion (111); and the lower end of the first spraying portion (111) is connected to the upper end of the second spraying portion (112).

2. The drum washing machine according to claim 1, characterized in that: The maximum left-right width of the first spraying portion (111) is 1 / 3 of the vertical extension length of the first water spraying port (11); and / or the maximum left-right width of the first spraying portion (111) is 2 to 3 times the maximum left-right width of the second spraying portion (112).

3. The drum washing machine according to claim 1, characterized in that: The vertical extension length of the first water spray port (11) is 5 mm to 6 mm, the maximum left and right width of the first water spray port (11) is 2.5 mm to 3.5 mm, and the water inlet pressure of the spray head (1) is 0.1 MPa to 0.24 MPa.

4. The drum washing machine according to claim 1, characterized in that: The left and right widths of the second ejection portion (112) decrease from top to bottom.

5. The drum washing machine according to claim 1, characterized in that: The first water spray port (11) is constructed on the axial end face of the shower head (1), and a water curtain diffusion groove (113) is also constructed on the axial end face, and the water curtain diffusion groove (113) is arranged around the first water spray port (11).

6. The drum washing machine according to claim 5, characterized in that: The groove cross-section of the water curtain diffusion groove (113) is V-shaped, and the water curtain diffusion groove (113) has a first diffusion section corresponding to the first ejection part (111) and a second diffusion section corresponding to the second ejection part (112), the diffusion angle of the first diffusion section is a, the diffusion angle of the second diffusion section is b, the inner diameter of the washing space of the inner drum (100) is d, the numerical values ​​of a and d are equal, and / or the arc length obtained by multiplying b and d is equal to the arc length of the drum wall between two adjacent lifting ribs on the inner drum (100).

7. The drum washing machine according to claim 5, characterized in that: The spray head (1) is a hollow sleeve structure, one end of the hollow sleeve structure is the axial end face, and the other end is connected to the water inlet connecting pipe (2). A second water spray port (12) communicating with the hollow cavity of the hollow sleeve structure is formed on the circumferential side wall of the hollow sleeve structure. There are two second water spray ports (12), and the two second water spray ports (12) are respectively located on the left and right sides of the second ejection portion (112).

8. The drum washing machine according to claim 7, characterized in that: The shower head (1) and the water inlet connecting pipe (2) are connected via a snap-fit ​​structure, wherein the snap-fit ​​structure comprises a snap-fit ​​protrusion (21) constructed on the outer circumferential wall of the water inlet connecting pipe (2) and a snap-fit ​​groove (131) constructed on the hollow cylindrical wall of the shower head (1); the snap-fit ​​protrusion (21) can rotate within the snap-fit ​​groove (131) along the circumference of the water inlet connecting pipe (2) by a preset angle.

9. The drum washing machine according to claim 8, characterized in that: The spray head (1) and the water inlet connecting pipe (2) are also connected via a positioning structure, wherein the positioning structure comprises a positioning protrusion (22) constructed on the outer circumferential wall of the water inlet connecting pipe (2) and a positioning groove (132) constructed on the hollow cylindrical wall of the spray head (1); when the locking protrusion (21) rotates within the locking groove (131) by the preset angle, the positioning protrusion (22) is embedded in the positioning groove (132).

10. The drum washing machine according to claim 1, characterized in that: The first water outlet (11) is formed by a combination of a first elliptical hole and a second elliptical hole, wherein the major axis of the first elliptical hole is larger than the major axis of the second elliptical hole, the minor axis of the first elliptical hole is larger than the minor axis of the second elliptical hole, and the major axis of the first elliptical hole and the major axis of the second elliptical hole have an overlapping section, a portion of the first elliptical hole forms the first ejection portion (111), a portion of the second elliptical hole forms the second ejection portion (112), and the intersection of the first elliptical hole and the second elliptical hole is smoothly connected.

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