CN110158267B - Drum washing machine - Google Patents

Drum washing machine Download PDF

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Publication number
CN110158267B
CN110158267B CN201810151677.3A CN201810151677A CN110158267B CN 110158267 B CN110158267 B CN 110158267B CN 201810151677 A CN201810151677 A CN 201810151677A CN 110158267 B CN110158267 B CN 110158267B
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China
Prior art keywords
water
washing machine
machine according
drum washing
drum
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CN201810151677.3A
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CN110158267A (en
Inventor
涂有明
王嘉
熊明
邓德喜
王波
韩万磊
高久兴
李磊
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Wuxi Little Swan Electric Co Ltd
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Wuxi Little Swan Electric Co Ltd
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Priority to CN201810151677.3A priority Critical patent/CN110158267B/en
Publication of CN110158267A publication Critical patent/CN110158267A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02Rotary receptacles, e.g. drums
    • D06F37/04Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/06Ribs, lifters, or rubbing means forming part of the receptacle
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/304Arrangements or adaptations of electric motors
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/40Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

The present invention discloses a drum washing machine, comprising: an outer tub having an inner diameter D; the inner cylinder is rotatably arranged in the outer barrel; a door for opening and closing the outer tub; the water guide structure is used for guiding water into the inner barrel; wherein the inner barrel rotates at a rotational speed of not higher than 11sqrt (D) for at least a period of time. According to the drum washing machine disclosed by the embodiment of the invention, the maximum rotating speed of the inner drum is limited, so that the vibration and the noise can be reduced, and the water guide structure for guiding water into the inner drum is matched, so that the water can be prevented from being retained between the inner drum and the outer drum, the water flow forms circulation, and the clothes are continuously penetrated to improve the cleaning effect.

Description

Drum washing machine
Technical Field
The invention relates to the technical field of electric appliance manufacturing, in particular to a drum washing machine.
Background
Washing machines are becoming more and more popular with consumers as a laundry appliance that frees both hands. Among various performances of the washing machine, the degree of cleanliness of laundry and a clean and healthy washing environment are particularly important.
In the case of a drum washing machine, when the inner tub rotates at a high speed, water in the inner tub penetrates through the laundry and the sidewall of the inner tub due to centrifugal force to enter between the inner tub and the outer tub. It is generally considered in the art that the higher the rotation speed of the inner tub, the higher the centrifugal force, the better the penetration effect of water, and thus the higher the degree of washing of the laundry. However, an excessively high rotation speed of the inner tub causes not only a problem of vibration noise but also an excessive centrifugal force to cause water to be trapped between the inner tub and the outer tub and not to be returned to the inner tub again, which is disadvantageous in improving the degree of washing.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a drum washing machine which has the advantages of low vibration noise, high cleaning degree and the like.
According to an embodiment of the present invention, there is provided a drum washing machine including: an outer tub having an inner diameter D; the inner cylinder is rotatably arranged in the outer barrel; a door for opening and closing the outer tub; the water guide structure is used for guiding water into the inner barrel; wherein the inner barrel rotates at a rotational speed of not higher than 11sqrt (D) for at least a period of time.
According to the drum washing machine disclosed by the embodiment of the invention, the maximum rotating speed of the inner drum is limited, so that the vibration and the noise can be reduced, and the water guide structure for guiding water into the inner drum is matched, so that the water can be prevented from being retained between the inner drum and the outer drum, the water flow forms circulation, and the clothes are continuously penetrated to improve the cleaning effect.
According to some embodiments of the invention, the inner barrel rotates at a speed not less than 4.5sqrt (d) for the at least one period of time.
Further, the rotating speed of the inner cylinder in the at least one period of time is not higher than 9sqrt (D) and not lower than 6sqrt (D).
According to some embodiments of the present invention, the rotation speed of the inner drum in the washing mode is not higher than 11sqrt (d) and not lower than 4.5sqrt (d).
Further, the rotation speed of the inner cylinder in the washing mode is not higher than 9sqrt (D) and not lower than 6sqrt (D).
According to some specific examples of the invention, the water level in the outer tub is not lower than 15% D.
According to some specific examples of the invention, the inner surface of the peripheral wall of the inner cylinder is provided with a lifting rib provided with a water outlet hole communicating with the inside of the inner cylinder.
According to some embodiments of the invention, the water guiding structure comprises: the door body is provided with door glass, the water guide ring is formed on the door glass, a recess for guiding water into the inner cylinder is formed on the inner surface of the door glass, a water guide inclined plane which obliquely extends into the inner cylinder from top to bottom is formed at the upper part of the water guide ring, and the recess is provided with a water inlet which penetrates through the water guide inclined plane.
Further, the maximum width of the door glass along the axial direction of the door glass is W, the maximum height of the door glass is H, and the height H of the water guide inclined plane at the position of W/2 is less than 85% of H.
Further, the maximum width of the door glass along the axial direction of the door glass is W, and an included angle alpha between a tangent line of the water guide inclined plane at the position of W/2 and the vertical direction is smaller than 40 degrees.
Further, the water guide ring is of an axisymmetric structure with a symmetry axis S, and the symmetry axis S is perpendicular to the axial direction of the water guide ring.
Further, the symmetry axis S extends in a vertical direction.
Further, the axis of symmetry S is arranged obliquely with respect to the vertical.
Further, the inclination direction of the symmetry axis S with respect to the vertical direction is set opposite to the rotation direction of the inner cylinder.
Further, the water guide slope has a first end and a second end in the circumferential direction of the water guide ring, so that a clock scale distributed along the circumferential direction of the water guide ring on the outer surface of the door glass is used as a reference, and the first end is lower than the second end and is located at the 3 o' clock position.
Further, the second end is past at least the 12 o' clock position in a counterclockwise direction from the first end.
Further, at least a portion of the recess is configured in a spherical crown shape.
Further, in a circumferential direction of the water guide ring, a width P of the remaining portion of the water guide ring other than the portion configured with the water guide slope in an axial direction of the door glass is kept uniform.
According to some embodiments of the invention, the water guiding structure comprises: the water guide edge is arranged on the outer barrel and is arranged on the door seal or the outer barrel, at least one part of the water guide edge extends into the inner barrel, and the water guide edge guides water between the front wall of the outer barrel and the door seal into the inner barrel.
Further, the water guide edge is in an arc shape extending along the circumferential direction of the inner cylinder.
Further, the water guide edge continuously extends to the 2 o 'clock position from at least the 12 o' clock position along the clockwise direction by taking a clock scale distributed on the outer surface of the door seal along the circumferential direction of the door seal as a reference.
Further, the water guide extends continuously in a clockwise direction from at least the 11 o 'clock position to the 3 o' clock position.
Further, the door seal is provided with a lip edge surrounding the outer side of the cylinder opening of the inner cylinder, an opening is formed in the position, corresponding to the water guide edge, of the lip edge, and the lip edge and the water guide edge are partially overlapped in the circumferential direction of the door seal.
Further, the at least a portion of the water guiding rim extends obliquely into the inner barrel and toward a central axis of the inner barrel.
Further, the water guide exceeds the opening of the inner cylinder towards the inside of the inner cylinder along the axial direction of the inner cylinder.
Further, the width L of the part of the water guide edge, which exceeds the opening of the inner cylinder, in the axial direction of the inner cylinder is not more than 3 mm.
According to some specific embodiments of the invention, in the axial direction of the inner barrel, the minimum distance between the water guiding edge and the front wall of the inner barrel is M, and the minimum distance between the door seal and the front wall of the inner barrel is M, wherein M > M.
Further, the minimum distance N between the water guide edge and the edge of the opening of the inner cylinder is larger than 5 mm.
According to some specific examples of the invention, the water guiding rim comprises: the supporting edge is positioned outside the inner cylinder and exceeds the cylinder opening of the inner cylinder in the radial direction of the inner cylinder; and the flanging is connected with the supporting edge and extends towards the inside of the inner barrel.
Furthermore, a water storage tank is arranged on the surface of the edge of the flanging, which faces the cylinder opening of the inner cylinder.
Further, be equipped with a plurality of retaining muscle in the catch basin, every the retaining muscle is followed turn-ups width direction extends and a plurality of the retaining muscle will the catch basin is separated into to follow a plurality of retaining regions that the length direction of catch basin arranged.
Further, the flanging is provided with a head end and a tail end, the flanging extends from the head end to the tail end along the rotating direction of the inner cylinder, and the water storage tank is located at the tail end.
Further, the included angle beta between the flanging and the supporting edge is not less than 105 degrees.
Furthermore, at least one of the supporting edge and the turning edge is provided with a plurality of reinforcing ribs.
Furthermore, a plurality of reinforcing ribs are arranged on the surface of the edge of the flanging, which is back to the opening of the inner cylinder, each reinforcing rib extends along the width direction of the flanging, and the plurality of reinforcing ribs are arranged at intervals along the length direction of the flanging.
Further, each reinforcing rib further extends to the surface of the supporting edge facing away from the inner cylinder.
According to some specific examples of the invention, the water guide rim is provided on the dock seal and is integrated with the dock seal.
According to some specific examples of the present invention, the water guide rim is provided at the outer tub, and the water guide rim is an integral piece with the outer tub or a separate piece mounted together.
According to some specific examples of the present invention, the front surface of the front wall of the inner cylinder is provided with a plurality of concave portions and a plurality of convex portions, the plurality of concave portions and the plurality of convex portions are arranged in series in a circumferential direction of the front wall of the inner cylinder, and the concave portions and the convex portions are alternately arranged.
According to some embodiments of the invention, the water guiding structure comprises: the water guide rib is arranged on the rear surface of the front wall of the outer barrel; the water lifting rib is arranged on the outer surface of the peripheral wall of the inner cylinder and is positioned at the front part of the inner cylinder; or the water diversion rib is arranged on the inner surface of the peripheral wall of the outer barrel and positioned at the front part of the outer barrel.
According to some specific examples of the present invention, the water guide rib is provided in plurality and spaced apart from each other along a circumferential direction of the front wall of the tub.
Further, a plurality of water guiding ribs are at least fully distributed on the upper part of the front wall of the outer barrel.
Further, the plurality of water guide ribs occupy more than half of the entire circumference of the front wall of the outer tub.
Further, the water guiding rib has an inner end and an outer end along the length direction, and the outer end deviates from a connecting line of the inner end and the center of the front wall of the outer barrel along the circumferential direction of the front wall of the outer barrel.
Further, the plurality of water guiding ribs are distributed in a spiral radial shape from the center of the front wall of the outer barrel to the outer periphery of the front wall of the outer barrel.
Further, the water guide rib is spaced from the front wall of the inner barrel by a certain distance.
According to some specific examples of the invention, the water lifting ribs are multiple and arranged at intervals along the circumferential direction of the circumferential wall of the inner barrel.
Further, the plurality of water lifting ribs are distributed on the whole circumference of the circumferential wall of the inner cylinder along the circumferential direction of the circumferential wall of the inner cylinder.
Further, the water lifting rib is obliquely arranged relative to the axial direction of the inner barrel.
Furthermore, an included angle gamma between the water lifting rib and the axial direction of the inner cylinder is 20-30 degrees.
Further, the water lifting ribs are located within the inner barrel forward 1/3 in its axial direction.
Further, a certain distance is arranged between the water lifting rib and the peripheral wall of the outer barrel.
According to some specific examples of the present invention, the water diversion rib is provided in plurality and spaced along a circumferential direction of a circumferential wall of the outer tub.
Further, the plurality of water diversion ribs are at least distributed on the upper part of the peripheral wall of the outer barrel.
Further, the plurality of water distribution ribs occupy more than half of the entire circumference of the circumferential wall of the outer tub.
Further, the water diversion rib extends along the axial direction of the outer barrel.
Furthermore, the water diversion ribs are spaced from the peripheral wall of the inner barrel by a certain distance.
According to some specific examples of the present invention, the water guiding ribs are plural and are arranged at intervals along a circumferential direction of the front wall of the outer tub, the water dividing ribs are plural and are arranged at intervals along a circumferential direction of the circumferential wall of the outer tub, and the plural water guiding ribs are connected to the plural water dividing ribs in a one-to-one correspondence manner.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a drum washing machine according to an embodiment of the present invention.
Fig. 2 is a side view of the drum washing machine according to the embodiment of the present invention.
Fig. 3 is a schematic structural view of the region a in fig. 2.
Fig. 4 is a rear sectional view of the drum washing machine according to the embodiment of the present invention.
Fig. 5 is a schematic structural view of a door glass of a drum washing machine according to an embodiment of the present invention.
Fig. 6 is a side view of a door glass of a drum washing machine according to an embodiment of the present invention.
Fig. 7 is a rear view of a door glass of a drum washing machine according to an embodiment of the present invention.
Fig. 8 is a rear sectional view of a drum washing machine according to another embodiment of the present invention.
Fig. 9 is a schematic structural view of a door seal of a drum washing machine according to an embodiment of the present invention.
Fig. 10 is a rear view of a door seal of a drum washing machine according to an embodiment of the present invention.
Fig. 11 is an enlarged view of the region B in fig. 10.
Fig. 12 is an enlarged view of the region C in fig. 10.
Fig. 13 is a side sectional view of the drum washing machine according to the embodiment of the present invention.
Fig. 14 is an enlarged view of the area D in fig. 13.
Fig. 15 is an enlarged view of the region E in fig. 13.
Fig. 16 is a sectional view of an outer tub and a water guide of the drum washing machine according to the embodiment of the present invention.
Fig. 17 is a sectional view of an outer tub and a water guide of a drum washing machine according to another embodiment of the present invention.
Fig. 18 is a sectional view of an outer tub and a water guide of a drum washing machine according to still another embodiment of the present invention.
Fig. 19 is a structural schematic view of a front wall of an inner tub of a drum washing machine according to an embodiment of the present invention.
Fig. 20 is a side view of the drum washing machine according to the embodiment of the present invention.
Fig. 21 is an enlarged view of region F in fig. 20.
Fig. 22 is a side view of a drum washing machine according to another embodiment of the present invention.
Fig. 23 is an enlarged view of the region G in fig. 22.
Fig. 24 is a rear view of an outer tub of the drum washing machine according to an embodiment of the present invention.
Fig. 25 is a partial side view of an outer tub of the drum washing machine according to an embodiment of the present invention.
Fig. 26 is a structural schematic view of an inner tub of a drum washing machine according to an embodiment of the present invention.
Fig. 27 is a partial structure rear view of an outer tub of a drum washing machine according to an embodiment of the present invention.
Fig. 28 is a partial structural side view of an outer tub of the drum washing machine according to an embodiment of the present invention.
Reference numerals:
a drum washing machine 1,
An outer tub 100,
An inner cylinder 200, a lifting rib 210, a water outlet hole 211, a cylinder opening 220, a concave part 230, a convex part 240,
A door glass 300, a water guide ring 310, a water guide slope 311, a first end 313, a second end 314, a recess 320, a water inlet 321,
Door seal 400, water guide edge 410, lip 420, opening 421, support edge 430, flange 440, reservoir 441, water storage rib 442, head 443, tail 444, reinforcing rib 450, and water guide groove,
Water guide ribs 510, an inner end 511, an outer end 512, water lifting ribs 520 and water dividing ribs 530.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The drum washing machine 1 according to the embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 28, the drum washing machine 1 according to the embodiment of the present invention includes an outer tub 100, an inner tub 200, a door body, and a water guide structure.
For the convenience of understanding of those skilled in the art, the direction indications in the drawings are all based on the direction of the drum washing machine 1 during normal use, that is, the up-down direction is the up-down direction of the drum washing machine 1 during actual use, the front surface of the drum washing machine 1 faces the user, and the rear surface of the drum washing machine 1 faces away from the user. The structure, dimensional parameters, and the like of the following embodiments are described with reference to the state when the door is closed.
The outer tub 100 has an inner diameter D. The inner tub 200 is rotatably provided in the outer tub 100. The door for opening and closing the tub 100 may be provided on the cabinet of the drum washing machine 1. The water guide structure is used for guiding water into the inner barrel 200, and the water guide structure may be disposed on at least one of the outer barrel 100, the inner barrel 200, and the door body.
During the operation of the drum washing machine 1, the inner drum 200 rotates at a rotation speed not higher than 11sqrt (d) for at least a period of time, where sqrt is a square root calculation.
In the related art, it is generally considered by those skilled in the art that the higher the rotation speed of the inner drum, the better the washing effect of the laundry is, but the inventor of the present invention found that, if the rotation speed of the inner drum is too high, not only the vibration noise is large, but also, more importantly, the centrifugal force is too large due to the too high rotation speed, so that the water between the inner drum and the outer drum is retained at the position by the too large centrifugal force and cannot return to the inner drum again, and thus the circulating water flow cannot be formed to repeatedly penetrate the laundry, and not only the washing effect cannot be improved, but also the washing degree is affected.
According to the drum washing machine 1 of the embodiment of the invention, the rotation speed of the inner barrel 200 in at least a period of time is not higher than 11sqrt (D) by limiting the maximum rotation speed of the inner barrel 200 in combination with the inner diameter D of the outer barrel 100, so that vibration and noise can be ensured within a reasonable range, and overlarge centrifugal force of the inner barrel 200 can be avoided, and water between the outer barrel 100 and the inner barrel 200 can return to the inner barrel 200 under the guide of the water guide structure in combination with the water guide structure for guiding water into the inner barrel 200, so that circulating water flow is formed, and the water flow continuously penetrates through clothes to improve the washing effect.
Therefore, the drum washing machine 1 according to the embodiment of the present invention has the advantages of low vibration noise, high washing degree, and the like.
In some embodiments of the present invention, the rotation speed of the drum 200 during the at least one period of time is not lower than 4.5sqrt (d), thereby further limiting the minimum rotation speed of the drum 200 and ensuring that the drum 200 generates enough centrifugal force to enable the water in the drum 200 to penetrate the laundry, further ensuring the washing effect on the laundry.
Preferably, the rotation speed of the inner barrel 200 in the at least one period of time is not higher than 9sqrt (d) and not lower than 6sqrt (d).
In some embodiments of the present invention, the drum washing machine 1 includes at least a washing mode and a dewatering mode during operation, for example, a pre-washing mode may be added before the washing mode, and the rotation speed of the inner tub 200 in the washing mode is not higher than 11sqrt (d) and not lower than 4.5sqrt (d) to substantially improve the washing effect.
Preferably, the rotation speed of the inner tub 200 in the washing mode is not higher than 9sqrt (d) and not lower than 6sqrt (d).
For example, a drum washing machine having an inner diameter of 500mm and 10kg of an outer tub is used as a reference.
The rotating speed R of the inner cylinder is (100-250) RPM;
wherein, C is a constant coefficient, C of the drum washing machine is 1, the inner diameter of the outer tub of the drum washing machine is set as D0(mm), and the inner diameters of the outer tubs of other drum washing machines are set as D (mm);
thus, C ═ sqrt (R/500);
i.e., 4.5sqrt (D). ltoreq.R.ltoreq.11 sqrt (D), preferably 6sqrt (D). ltoreq.R.ltoreq.9 sqrt (D).
In other words, the water guide structure can achieve a better washing effect in conjunction with the rotation speed control of the inner tube 200.
Further, in order to produce a better washing effect, the influence of the water amount is also considered, and thus, the water level in the outer tub 100 is not lower than 15% D.
In some specific examples of the present invention, as shown in fig. 2 and 13, the outer surface of the circumferential wall of the inner cylinder 200 (i.e., the outer circumferential wall surface of the inner cylinder 200) is provided with a lifting rib 210, the lifting rib 210 may extend in the axial direction of the inner cylinder 200 and be waved, and the lifting rib 210 is provided with a water outlet hole 211 communicating with the inside of the inner cylinder 200. When the inner tub 200 rotates, the centrifugal force generated causes water in the inner tub 200 to pass through the laundry and the water outlet hole 211 to enter between the inner tub 200 and the outer tub 100, and under the rotation of the inner tub 200, the lifting ribs 210 continuously stir the water flow between the inner tub 200 and the outer tub 100 and cause the part of the water flow to flow upward and finally return to the inner tub 200, and in the process, the water flow washes the inner tub 200, the outer tub 100, the door body, the laundry, and the like.
In some embodiments of the present invention, as shown in fig. 1-8, the water directing structure includes a water directing ring 310.
The door body has a door glass 300, and it should be understood that the door glass 300 is a general term for the door body of the drum washing machine by those skilled in the art, and the door glass 300 is not limited to be made of glass. The water guide ring 310 is formed on the door glass 300, for example, the door glass 300 is integrally molded, the water guide ring 310 is a part of the integrally molded door glass 300, the water guide ring 310 extends substantially along the circumferential direction of the door glass 300, the water guide ring 310 forms a recess 320 for guiding water into the inner cylinder 200 on the inner surface (i.e., the rear surface) of the door glass 300, the recess 320 is recessed forward, and when the door body is closed, the water guide ring 310 is opposite to the cylinder opening 220 of the inner cylinder 200. The upper portion of the water guide ring 310 is configured with a water guide slope 311 extending from top to bottom to the inner cylinder 200 in an inclined manner, that is, the water guide slope 311 extends from top to bottom in an inclined manner, the recess 320 has a water inlet 321 penetrating through the water guide slope 311, that is, the water guide slope 311 of the water guide ring 310 is formed with a gap communicating with the recess 320, and the gap is the water inlet 321.
Specifically, during the operation of the drum washing machine 1, for example, during washing, the inner tub 200 rotates, the lifting rib 210 of the inner tub 200 stirs the water flow between the inner tub 200 and the outer tub 100, and the water flow crosses the water guide slope 311 and enters the recess 320 from the water inlet 321, and then is guided into the inner tub 200 from the recess 320, so that not only the inner tub 200 and the door glass 300 can be washed away to avoid dirt residue, which is beneficial to forming a clean and healthy washing environment, but also the laundry can be continuously impacted, the dissolution of the detergent can be accelerated, and the washing degree of the laundry is higher. Also, the recess 320 can increase the volume of the drum washing machine 1, increasing the load capacity of the laundry.
According to the door glass 300, the door body with the door glass and the drum washing machine 1, the water guide ring 310 is formed on the door glass 300, the water guide ring 310 can be used for forming the recess 320 facing the inner drum 200, and the water guide inclined plane 311 of the water guide ring 310 is provided with the water inlet 321 communicated with the recess 320, so that water flow between the inner drum 200 and the outer drum 100 can enter the recess 320 and then flow towards the clothes in the inner drum 200, the circulating water flow continuously impacts the clothes, the washing effect of the clothes is improved, and a clean and healthy washing environment is formed.
Wherein, in order to improve the water guiding effect of the recess 320 into the inner cylinder 200, at least a portion of the recess 320 is constructed in a spherical crown shape.
Alternatively, as shown in fig. 8, in the circumferential direction of the water guide ring 310, the width P of the remaining portion of the water guide ring 310 excluding the portion configured with the water guide slope 311 in the axial direction of the door glass 300 is maintained to be uniform to secure the water guide effect of the recess 320. For example, the width P of the lower portion of the water guide ring 310 is uniform, and the upper portion of the water guide ring 310 is configured with a portion of the water guide slope 311, which gradually decreases from bottom to top.
In some specific examples of the present invention, as shown in fig. 6, a projection of the door glass 300 in a vertical plane parallel to an axial direction thereof, wherein a maximum width of the door glass 300 in the axial direction thereof is W, a maximum height of the door glass 300 is H, and a height H of the water guide slope 311 at W/2 is less than 85% H. It is understood that the maximum height H of the door glass 300 means a distance in the up-down direction between the lowest point and the highest point of the door glass 300, and the height H of the water guide slope 311 at W/2 means a distance in the up-down direction between a point on the water guide slope 311 at W/2 and the lowest point of the door glass 300.
Further, the included angle alpha between the tangent of the water guide slope 311 at W/2 and the vertical direction is less than 40 degrees.
Therefore, by defining the relevant parameters of the water guide slope 311, it can be ensured that the water flow between the inner tub 200 and the outer tub 100 can smoothly cross the water guide slope 311, so as to enter the recess 320 from the water inlet 321, and further to be guided into the inner tub 200 to impact the laundry.
In some embodiments of the present invention, as shown in fig. 7, the water guide ring 310 has an axisymmetric structure with a symmetry axis S perpendicular to an axial direction of the water guide ring 310. In other words, in a plane perpendicular to the axial direction of the water guide ring 310, the structure of the water guide ring 310 is symmetrical about the symmetry axis S, i.e., the water guide slopes 311 are uniformly distributed on both sides of the water guide ring 310. This not only facilitates the manufacturing of the water guide ring 310, but also facilitates the water flow to pass over the water guide slope 311 and enter the recess 320 from the water inlet 321.
Alternatively, as shown in fig. 7, the symmetry axis S extends in the vertical direction.
Of course, as shown in fig. 8, the axis of symmetry S may also be disposed obliquely with respect to the vertical direction, i.e., the door glass 300 may be disposed obliquely.
Specifically, as shown in fig. 8, the inclination direction of the symmetry axis S with respect to the vertical direction is set opposite to the rotation direction of the inner tube 200. For example, when the inner tube 200 is rotated in a clockwise direction in a view from the rear to the front, the symmetry axis S is inclined in a counterclockwise direction with respect to the vertical direction.
Since the inner tub 200 is generally rotated only in one direction to save time and simplify a process, the door glass 300 is inclined in combination with the rotation direction of the inner tub 200 such that the symmetry axis S of the water guide ring 310 is inclined in a direction opposite to the rotation direction of the inner tub 200, which is advantageous for guiding more water into the recess 320, thereby guiding more water into the inner tub 200 to further improve the washing effect of the laundry.
In some specific examples of the present invention, as shown in fig. 8, the water guide slope 311 has a first end 313 and a second end 314 in a circumferential direction of the water guide ring 310. With reference to the clock scales distributed along the circumferential direction of the water guide ring 310 on the outer surface (front surface) of the door glass 300, in other words, the clock scales are virtually distributed along the circumferential direction of the water guide ring 310 in a view from the front to the rear, the first end 313 of the water guide slope 311 is lower than the second end 314 of the water guide slope 311, the first end 313 of the water guide slope 311 is located at the 3 o 'clock position, and the second end 314 of the water guide slope 311 at least crosses over the 12 o' clock position from the first end 313 in the counterclockwise direction. It should be understood that, since fig. 8 shows a view from the back to the front, the view from the front to the back is to be understood.
When the drum washing machine 1 is washing, the inner drum 200 rotates, the lifting ribs 210 agitate the water flow, the highest point of the water flow is usually located at the front 3 o 'clock position, and the first end 313 of the water guiding inclined plane 311 is further arranged at the front 3 o' clock position, so that the water flow passes through the first end 313 of the water guiding inclined plane 311 and enters the recess 320 from the water inlet 321. Also, in order to simultaneously secure the amount of water entering the recess 320 and the amount of water guided by the recess 320 to the inner cartridge 200, the second end 314 of the water guide slope 311 continuously extends over at least the 12 o' clock position.
In some embodiments of the invention, as shown in fig. 2-4 and 9-12, the water directing structure includes a water directing rim 410.
The outer tub 100 is provided with a door seal 400, and when the door body is closed, the door seal 400 seals a gap between the door body and the outer tub 100. The water guide rim 410 is disposed on the door seal 400 or the outer tub 100, and at least a portion of the water guide rim 410 extends into the inner tub 200, it should be understood that at least a portion of the water guide rim 410 extends in a direction of the inside of the inner tub 200, but does not necessarily extend into the inner tub 200. The water guide rim 410 guides water between the front wall of the outer tub 100 and the door seal 400 into the inner tub 200.
Specifically, when the inner tub 200 rotates, the water flow between the inner tub 200 and the outer tub 100 is stirred by the lifting ribs 210, the water flow makes a circular motion between the front wall of the inner tub 200 and the door seal 400, and when reaching the top, the water flow is guided into the inner tub 200 along the water guide edge 410 due to the fact that gravity is greater than centrifugal force, so that a waterfall type water flow is formed, the door seal 400 can be flushed to avoid dirty residues, and clothes can be flushed to improve the washing effect of the clothes.
In some specific examples of the present invention, as shown in fig. 9 to 12, the water guide rim 410 is an arc shape extending along the circumferential direction of the nozzle 220 of the inner barrel 200 and is located at an upper position of the nozzle 220.
As shown in fig. 8 and 10, with reference to the clock scales distributed along the circumferential direction of the dock seal 400 on the outer surface of the dock seal 400, in other words, with the clock scales virtually distributed along the circumferential direction of the dock seal 400 in the perspective from the front to the rear, the water guide edge 410 continuously extends at least from the 12 o 'clock position to the 2 o' clock position in the clockwise direction.
Preferably, the water guiding rim 410 extends continuously in a clockwise direction at least from the 11 o 'clock position to the 3 o' clock position.
It should be understood that, since fig. 8 and 10 show the perspective from the back to the front, the perspective from the front to the back is to be understood.
When the drum washing machine 1 is used for washing, the inner drum 200 rotates, the lifting ribs 210 stir water flow, the highest point of the driven water flow is usually located at the position of 3 o ' clock on the front surface, and the water guide edge 410 is arranged to continuously extend from the position of 12 o ' clock on the front surface to the position of 2 o ' clock on the front surface along the clockwise direction, so that the water guide edge 410 guides the water flow at the highest point into the inner drum 200, and the water guide amount of the water guide edge 410 is ensured.
In some specific examples of the present invention, as shown in fig. 10 and 12, the door seal 400 has a lip 420, the lip 420 surrounds the outside of the nozzle 220 of the inner cylinder 200, and an opening 421 is provided at a position of the lip 420 corresponding to the water guide rim 410, that is, the lip 420 extends along the circumferential direction of the door seal 400 and is in an open ring shape rather than a closed ring shape, a broken position of the lip 420 is the opening 421, and the opening 421 can facilitate water between the front wall of the inner cylinder 200 and the door seal 400 to flow to the water guide rim 410 and be guided into the inner cylinder 200 by the water guide rim 410.
Wherein the lip 420 partially coincides with the water guide rim 410 on the circumference of the dock seal 400. In other words, in the circumferential direction of the door seal 400, one end of the lip 420 coincides with one end of the water guide rim 410, and the other end of the lip 420 coincides with the other end of the water guide rim 410. Therefore, water can be collected above the water guide edge 410 to form high-pressure waterfall type water flow, and the water is prevented from directly falling into the inner barrel 200.
In some specific examples of the present invention, as shown in fig. 2 and 3, the at least one portion of the water guiding rim 410 extends obliquely toward the central axis of the drum 200 and toward the inside of the drum 200, i.e., the water guiding rim 410 extends from front to rear and obliquely downward, so that the water flow directly impacts the laundry inside the drum 200 under the guidance of the water guiding rim 410.
Further, as shown in fig. 3 and 4, in order to ensure the flushing effect of the water flow guided by the water guide edge 410, the water guide edge 410 extends beyond the nozzle 220 of the inner cylinder 200 toward the inside of the inner cylinder 200 in the axial direction of the inner cylinder 200.
Further, as shown in fig. 4, the width L of the portion of the water guiding rim 410 exceeding the opening 220 of the inner drum 200 in the axial direction of the inner drum 200 is not greater than 3mm, so that friction between the laundry and the water guiding rim 410 is prevented, or the door seal 400 is indirectly pressed to prevent water flow, and the laundry is prevented from being involved in the gap to pull the door seal 400, thereby ensuring that the laundry and the door seal 400 are not easily damaged.
In some embodiments of the present invention, as shown in fig. 13-15, in the axial direction of the inner barrel 200, the minimum distance between the water guiding rim 410 and the front wall of the inner barrel 200 is M, and the minimum distance between the door seal 400 (specifically the lip 420) and the front wall of the inner barrel 200 is M, where M > M.
The minimum distance between the water guide edge 410 and the front wall of the inner cylinder 200 is M, which facilitates the collection of water flow during circular motion under the action of centrifugal force and facilitates the smooth centripetal direction of water flow, so that the water flow is guided by the water guide edge 410 to rush into the inner cylinder 200. The minimum distance between the door seal 400 and the front wall of the inner barrel 200 is m, so that small objects can be prevented from falling into the inner barrel, and when water flow is stirred, the door seal 400 is guaranteed to be small in blocking of the water flow, so that the water flow can enter the inner barrel 200 from a gap between the door seal 400 and the inner barrel. That is, by the above-mentioned dimensional limitation, not only the water flow into the inner tub 200 to wash the laundry can be facilitated, but also the laundry can be prevented from being caught between the inner tub 200 and the outer tub 100.
Further, as shown in fig. 14, in combination with tolerance dispersion of each related component and dispersion of a production line assembly, shaking of the inner drum 200 in each of the up, down, left and right directions during movement, eccentricity of clothes under a limit condition, and the like, the minimum distance N between the water guide edge 410 and the edge of the opening 220 of the inner drum 200 is greater than 5mm, so that friction between the inner drum 200 and the water guide edge 410 can be avoided, and the door seal 400 is prevented from being torn and deformed due to indirect pulling of the door seal 400.
In some embodiments of the present invention, as shown in fig. 9-11, the water guide rim 410 includes a support edge 430 and a cuff 440.
The support rim 430 is located outside the inner cylinder 200 and beyond the opening 220 of the inner cylinder 200 in the radial direction of the inner cylinder 200, and the support rim 430 may be disposed in parallel with the front wall of the inner cylinder 200. The flange 440 is connected to the support rim 430, and the flange 440 extends from the support rim 430 inwardly of the inner cylinder 200, for example, rearwardly and downwardly inclined. The support rim 430 and the flange 440 cooperate to direct water between the front wall of the inner cartridge 200 and the dock seal 400 into a high pressure waterfall that is directed into the inner cartridge 200.
Wherein, the minimum distance between the supporting edge 430 and the front wall of the inner cylinder 200 is M, and the minimum distance between the flange 440 and the edge of the nozzle 220 of the inner cylinder 200 is N.
Alternatively, as shown in fig. 13 and 14, the angle β between the flange 440 and the support edge 430 is not less than 105 °, thereby ensuring a minimum distance N between the flange 440 and the rim of the nozzle 220 of the inner barrel 200.
In some specific examples of the present invention, as shown in fig. 10 and 11, the surface of the flange 440 facing the rim of the nozzle 220 of the inner cylinder 200 is provided with the water storage groove 441, that is, the water storage groove 441 is provided on the outer circumferential surface of the flange 440. Specifically, the flange 440 has a head end 443 and a tail end 444, the flange 440 extends from the head end 443 to the tail end 444 along the rotation direction of the inner barrel 200, and the reservoir 441 is located at the tail end 444.
Further, a plurality of water storage ribs 442 are arranged in the water storage groove 441, each water storage rib 442 extends along the width direction of the flange 440, and the water storage groove 441 is divided into a plurality of water storage areas arrayed along the length direction of the water storage groove 441 by the plurality of water storage ribs 442.
Specifically, the water flow makes circular motion in the gap between the door seal 400 and the front wall of the inner barrel 200, the water flow firstly enters the head end 443 of the flange 440, part of the water flow is guided into the inner barrel 200 by the flange 440, and part of the water flow continues to flow towards the tail end 444 of the flange 440 under the action of inertia, because the tail end 444 of the flange 440 is provided with the water storage groove 441, and the water storage rib 442 is arranged in the water storage groove 441, when the water flow enters the water storage groove 441, the water storage rib 442 is blocked, the water storage area plays a water storage role, when the water flow flows in a circulating way, due to the gravity of the water flow, the water stored in the water storage area is extruded out, and water waterfall water flow is formed in a circulating manner, so that the washing effect on the clothes is further improved.
In some embodiments of the present invention, as shown in fig. 9 to 11, in order to improve the structural strength of the water guide rim 410 and prevent the water guide rim 410 from deforming when water falls into the water guide rim 410, so as to improve the stability of water guide, at least one of the support edge 430 and the turned-up edge 440 is provided with a plurality of reinforcing ribs 450.
Specifically, a plurality of ribs 450 are provided on the surface of the flange 440 facing away from the edge of the nozzle 220 of the inner cylinder 200 (i.e., the inner circumferential surface of the flange 440), each rib 450 extending in the width direction of the flange 440 and the plurality of ribs 450 being provided at intervals in the length direction of the flange 440. Therefore, the structural strength of the flange 440 can be uniformly enhanced, and the overall structural strength of the flange 440 is improved.
Further, each rib 450 further extends to the surface of the support rim 430 facing away from the inner tube 200 (i.e., the front surface of the support rim 430) to further enhance the structural strength of the support rim 430.
In some embodiments of the invention, the water guide 410 is provided on the dock seal 400 and is integral with the dock seal 400.
Of course, the present invention is not limited thereto, and the water guide rim 410 may be provided on the tub 100. For example, as shown in fig. 16, the water guide rim 410 is integrated with the outer tub 100; for another example, as shown in fig. 17 and 18, the water guide rim 410 and the outer tub 100 are separate pieces mounted together, and the two pieces may be connected by a snap and/or a bolt.
In some specific examples of the present invention, as shown in fig. 19, the front surface of the front wall of the inner cylinder 200 is provided with a plurality of recesses 230 and a plurality of protrusions 240, the plurality of recesses 230 and the plurality of protrusions 240 are continuously arranged in the circumferential direction of the front wall of the inner cylinder 200 and the recesses 230 and the protrusions 240 are alternately arranged, that is, in the circumferential direction of the front wall of the inner cylinder 200, the recesses 230-the protrusions 240-the recesses 230 … … are arranged in the order of the recesses 230-the protrusions 240-the recesses 230-the protrusions 240-the protrusions 230. Therefore, when the water current performs circular motion between the front wall of the inner cylinder 200 and the door seal 400, the convex part 240 can play a role of stirring the water current, and the water current at the bottom can be better lifted to a high position.
Further, the plurality of concave portions 230 and the plurality of convex portions 240 may be arranged in a plurality of turns distributed in the radial direction of the front wall of the inner cylinder 200, and in the example shown in fig. 19, the plurality of concave portions 230 and the plurality of convex portions 240 are arranged in two turns, that is, at the inner peripheral edge of the front wall of the inner cylinder 200, one turn is also provided, which is also arranged in the order of concave portions 230-convex portions 240-concave portions 230-230 … … in the entire turn.
In some embodiments of the present invention, as shown in fig. 20-28, the water guiding structure includes a water guiding rib 510 and one of a water lifting rib 520 and a water dividing rib 530.
Wherein the water guide rib 510 is disposed on the rear surface of the front wall of the outer tub 100. The water lifting rib 520 is provided on the outer surface of the circumferential wall of the inner tube 200 (i.e., the outer circumferential wall surface of the inner tube 200) and is positioned at the front portion of the inner tube 200. The water diversion rib 530 is provided on the inner surface of the peripheral wall of the outer tub 100 (i.e., the inner peripheral wall surface of the outer tub 100) and is located at the front of the outer tub 100.
In other words, as shown in fig. 20 and 21, the water guide rib 510 and the water lifting rib 520 may be provided at the same time. As shown in fig. 22 and 23, the water diversion rib 510 and the water diversion rib 530 may be provided at the same time.
According to the drum washing machine 1 of the embodiment of the present invention, by providing the water guiding rib 510 and one of the water lifting rib 520 and the water dividing rib 530, it is possible to facilitate the formation of the water flow for washing the bubbles and washing the laundry, thereby improving the washing effect of the laundry and forming a clean and healthy laundry environment.
Specifically, the water guiding ribs 510 are arranged on the rear surface of the front wall of the outer tub 100, and the water flow between the inner tub 200 and the outer tub 100 is gradually lifted from the lowest point to the highest point when the inner tub 200 rotates, in the process, the water flow is uniformly distributed and dispersed at the water guiding ribs 510, and under the action of the water guiding ribs 510, a sheet-shaped water flow is formed, so that a waterfall-shaped dispersed water flow is formed and sprayed on the door glass 300, the effect of cleaning the foam on the door glass 300 is achieved, and the water flow sprayed on the door glass 300 enters the recess 320 and is guided into the inner tub 200 to wash the clothes, so that the washing effect of the clothes is improved.
Through set up water lifting muscle 520 and combine water guide muscle 510 at the front portion of the peripheral wall of inner tube 200, during the washing, inner tube 200 is rotatory, water lifting muscle 520 lifts the rivers between inner tube 200 and outer bucket 100, rivers promote to the highest position from the lowest position, in this process, rivers equipartition dispersion is in water guide muscle 510 department, and under the effect of water guide muscle 510, form slice rivers, and then form waterfall form dispersion rivers and spray on door glass 300, play the effect of wasing the foam on door glass 300, and the rivers that spray on door glass 300 get into sunken 320 and are leaded to the washing clothing in the inner tube 200, the washing effect of clothing has been improved.
The water diversion ribs 530 are arranged at the front part of the inner peripheral wall surface of the outer barrel 100 and combined with the water diversion ribs 510, when washing is carried out, the inner barrel 200 rotates at a high speed, water flow between the inner barrel 200 and the outer barrel 100 rotates along with the inner barrel 200 and is lifted to the highest point from the lowest point, in the process, the water diversion ribs 530 can prevent the water flow from being attached to the inner peripheral wall surface of the outer barrel 100 to rotate, the water flow is uniformly distributed among the water diversion ribs 530, then the water flow flows to the water diversion ribs 510 on the front wall of the outer barrel 100, sheet-shaped water flow is formed under the action of the water diversion ribs 510, and then waterfall-shaped dispersed water flow is sprayed on the door glass 300 to play a role in cleaning foam on the door glass 300, and the water flow sprayed on the door glass 300 enters the recess 320 to be guided into the inner barrel 200 to wash clothes, so that the washing effect of the clothes is improved.
In some specific examples of the present invention, as shown in fig. 24 and 25, the water guide rib 510 is provided in plurality and at equal intervals along the circumferential direction of the front wall of the outer tub 100.
Further, the plurality of water guide ribs 510 are at least fully distributed over the upper portion of the front wall of the tub 100, and the plurality of water guide ribs 510 occupy more than half of the entire circumference of the front wall of the tub 100, so that the water uniformly distributed among the plurality of water guide ribs 510 is uniformly sprayed to the door glass 300 in a waterfall shape.
Alternatively, as shown in fig. 24, the water guide rib 510 has an inner end 511 and an outer end 512 along the length direction thereof, and the outer end 512 is offset from a line connecting the inner end 511 and the center of the front wall of the tub 100 along the circumferential direction of the front wall of the tub 100. That is, the water guide rib 510 does not extend in a radial direction of the outer tub 100, but is inclined at a certain angle. For example, the plurality of water guide ribs 510 are radially and spirally distributed from the center of the front wall of the outer tub 100 to the outer circumference of the front wall of the outer tub 100.
Therefore, the water flowing to the front wall of the outer tub 100 is uniformly distributed and separated by the plurality of water guide ribs 510, the water is sprayed downwards from the outer circle of the front wall of the outer tub 100, the formed sprayed water is uniformly distributed on the door glass 300 to wash the foam on the door glass 300, the effect of cleaning the foam on the door glass 300 is achieved, and the foam further flows into the recess 320 of the door glass 300, so that the clothes in the inner tub 200 are washed.
The water guiding rib 510 is spaced from the front surface of the front wall of the inner tub 200 by a certain distance, so that the interference between the rotating inner tub 200 and the water guiding rib 510 of the front wall of the stationary outer tub 100 is prevented.
In some specific examples of the present invention, as shown in fig. 26, the water lifting ribs 520 are plural and arranged at equal intervals in the circumferential direction of the circumferential wall of the inner tube 200.
Further, the plurality of water lifting ribs 520 are distributed over the entire circumference of the circumferential wall of the inner tub 200 in the circumferential direction of the circumferential wall of the inner tub 200, whereby the water flow can be continuously lifted while the inner tub 200 is rotated.
In some examples of the present invention, as shown in fig. 26, the water lifting rib 520 is disposed obliquely with respect to the axial direction of the inner tub 200, and a component force parallel to the rotational axial direction of the inner tub 200 may be generated during the process that the water flow between the inner tub 200 and the outer tub 100 is lifted by the water lifting rib 520, thereby improving the lifting effect of the water flow.
Specifically, the included angle γ between the water lifting rib 520 and the axial direction of the inner barrel 200 is 20-30 °, wherein γ is the included angle between the axial direction determined by the right hand rule of the rotation direction of the inner barrel 200 and the water lifting rib 520.
Further, the water lifting rib 520 is located within the range of the front 1/3 of the inner barrel 200 in the axial direction thereof. The water lifting rib 520 is distributed at the front end of the inner tub 200 and extends to the end, so that the washing water can be guided to the nozzle 220 at the front of the inner tub 200. Preferably, the inner barrel 200 is arranged in the range of 1/3 in front of the length thereof, so that the risk of barrel collision is reduced, the water flow effect is improved, the forward water quantity is ensured, and the water circulation effect is improved.
The water lifting rib 520 is spaced from the inner surface of the peripheral wall of the outer tub 100 by a certain distance, so that the water lifting rib 520 of the inner tub 200 rotating during washing does not interfere with the inner peripheral wall of the stationary outer tub 100.
In some specific examples of the present invention, as shown in fig. 27 and 28, the water diversion rib 530 is plural and is disposed at equal intervals along the circumferential direction of the peripheral wall of the outer tub 100, and each water diversion rib 530 extends along the axial direction of the outer tub 100.
Further, the plurality of water distribution ribs 530 are spread over at least an upper portion of the peripheral wall of the outer tub 100, and the plurality of water distribution ribs 530 occupy more than a half of the entire peripheral wall of the outer tub 100, thereby preventing the rising water flow from rotating against the inner peripheral wall surface of the outer tub 100.
The water diversion rib 530 is spaced from the outer surface of the circumferential wall of the inner cylinder 200 by a certain distance to ensure that the inner cylinder 200 does not interfere with the outer surface when rotating.
In some specific examples of the present invention, as shown in fig. 27 and 28, in order to ensure continuous guidance of the water flow, a plurality of water distribution ribs 510 are connected to a plurality of water distribution ribs 530 in a one-to-one correspondence.
It should be understood that in the above embodiments, the water guiding structure is described as including the water guiding ring 310, the water guiding rim 410, the water guiding rib 510, and one of the water lifting rib 520 and the water dividing rib 530, and it is obvious to those skilled in the art that any selection and combination of the above structures can be made, and the combination is within the scope of the present invention.
According to the drum washing machine 1 of the embodiment of the present invention, the door glass 300 forms the recess 320 in the middle through the water guide ring 310, the upper portion of the water guide ring 310 is provided with the water guide slope 311, in the closed space formed between the outer tub 100 and the inner tub 200, during washing, the inner tub 200 rotates, and the lifting rib 210 stirs the water flow, and the high point of the water flow rotation is generally in the direction of 3 points on the front surface.
In the process of the inner cylinder 200 rotating at a medium and low speed, the lifting ribs 210 stir to form a large amount of water flow with small force, and the water enters the recess 320 from the water inlet 321 through the water guide inclined surface 311. The inner tube 200 is at the in-process of high-speed rotation, because the centrifugal force effect, water forms high-pressure rivers through the clearance between the antetheca of door seal 400 and inner tube 200, because the clearance M at top is great, rivers form highly compressed rivers through the water guide inclined plane 311 at water guide ring 310 top and constantly fall into sunken 320, wash inner tube 200, door glass 300 and door seal 400 better, avoid dirty remaining, this kind of high-pressure rivers also constantly impact the clothing simultaneously, the dissolution of detergent accelerates, make the clothing wash cleaner, and the sunken 320 of door glass 300 has also increased the volume of laundry cavity, washing clothing load capacity has been promoted.
Through the arrangement of the water guide edge 410, the front part of the front wall of the inner drum 200 is provided with the plurality of concave parts 230 and the plurality of convex parts 240, when the drum washing machine 1 operates, high-pressure water flow is generated to continuously impact clothes, the dissolution of detergent is accelerated, meanwhile, the high-pressure water flow better washes the inner drum 200 and the door seal 400, the clothes are washed more cleanly, the washing ratio of the clothes is improved, a clean and healthy washing machine cavity is favorably ensured, the door seal 400 with the water guide edge 410 can block the clothes, the clothes can be better limited in the inner drum 200, and the function of a clothes blocking block is achieved.
The following tests prove that the drum washing machine 1 according to the embodiment of the present invention can achieve a better washing ratio, and avoid the reduction of the bearing life and the increase of the power consumption caused by an excessively high rotation speed, and the specific test results are as follows:
Figure BDA0001580066700000161
Figure BDA0001580066700000162
Figure BDA0001580066700000171
as can be seen from the above test results, the drum washing machine 1 according to the embodiment of the present invention is superior to the conventional drum washing machine in terms of cleaning ratio, bearing life, and power consumption.
Other constructions and operations of the drum washing machine 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (57)

1. A drum washing machine characterized by comprising:
an outer tub having an inner diameter D;
the inner cylinder is rotatably arranged in the outer barrel;
a door for opening and closing the outer tub;
the water guide structure is arranged on at least one of the outer barrel, the inner barrel and the door body, so that water between the outer barrel and the inner barrel returns to the inner barrel under the guidance of the water guide structure;
wherein the inner cylinder rotates at a rotating speed not higher than 11sqrt (D) and not lower than 4.5sqrt (D) in at least one period of time so as to reduce noise and improve the cleaning degree.
2. A drum washing machine according to claim 1, characterized in that the rotation speed of the inner drum during the at least one period of time is not higher than 9sqrt (d) and not lower than 6sqrt (d).
3. A drum washing machine according to claim 1, characterized in that the rotation speed of the inner drum in the washing mode is not higher than 11sqrt (d) and not lower than 4.5sqrt (d).
4. A drum washing machine according to claim 3, characterized in that the rotation speed of the inner drum in the washing mode is not higher than 9sqrt (D) and not lower than 6sqrt (D).
5. A drum washing machine according to claim 1, characterized in that the water level in the outer tub is not lower than 15% D.
6. A drum washing machine according to claim 1, characterized in that the inner surface of the peripheral wall of the inner drum is provided with a lifting rib provided with a water outlet hole communicating with the inside of the inner drum.
7. A drum washing machine according to claim 1, characterized in that the water guiding structure comprises:
the door body is provided with door glass, the water guide ring is formed on the door glass, a recess for guiding water into the inner cylinder is formed on the inner surface of the door glass, a water guide inclined plane which obliquely extends into the inner cylinder from top to bottom is formed at the upper part of the water guide ring, and the recess is provided with a water inlet which penetrates through the water guide inclined plane.
8. A drum washing machine according to claim 7, characterized in that the maximum width of the door glass along the axial direction thereof is W, the maximum height of the door glass is H, and the height H of the water guide slope at W/2 is less than 85% H.
9. A drum washing machine according to claim 7, characterized in that the maximum width of the door glass along the axial direction is W, and the included angle α of the tangent of the water guide slope at W/2 and the vertical direction is less than 40 °.
10. A drum washing machine according to claim 7, characterized in that the water guide ring is an axisymmetric structure having an axis of symmetry S, which is perpendicular to the axial direction of the water guide ring.
11. A drum washing machine according to claim 10, characterized in that the symmetry axis S extends in a vertical direction.
12. A drum washing machine according to claim 10, characterized in that the symmetry axis S is arranged obliquely with respect to the vertical.
13. A drum washing machine according to claim 12, characterized in that the inclination direction of the symmetry axis S with respect to the vertical direction is arranged opposite to the rotation direction of the inner drum.
14. A drum washing machine according to claim 13, characterized in that the water guide slope has a first end and a second end in the circumferential direction of the water guide ring, with reference to a clock scale distributed along the circumferential direction of the water guide ring at the outer surface of the door glass, the first end being lower than the second end and located at a 3 o' clock position.
15. A drum washing machine according to claim 14, characterized in that the second end is at least 12 o' clock past the first end in a counter clockwise direction.
16. A drum washing machine according to claim 7, characterized in that at least a part of the recess is configured in a spherical crown shape.
17. A drum washing machine according to claim 7, characterized in that the width P of the remaining portion of the water guide ring excluding the portion configured with the water guide slope in the axial direction of the door glass is kept uniform in the circumferential direction of the water guide ring.
18. A drum washing machine according to claim 1, characterized in that the water guiding structure comprises:
the water guide edge is arranged on the outer barrel and is arranged on the door seal or the outer barrel, at least one part of the water guide edge extends into the inner barrel, and the water guide edge guides water between the front wall of the outer barrel and the door seal into the inner barrel.
19. A drum washing machine according to claim 18, characterized in that the water guiding rim is arc-shaped extending along the circumferential direction of the inner drum.
20. A drum washing machine according to claim 19, characterized in that the water guiding edge extends continuously in a clockwise direction at least from a 12 o 'clock position to a 2 o' clock position with reference to a clock scale distributed along a circumferential direction of the dock seal on an outer surface of the dock seal.
21. A drum washing machine according to claim 20, characterized in that the water guide extends continuously in a clockwise direction at least from the 11 o 'clock position to the 3 o' clock position.
22. A drum washing machine according to claim 18, characterized in that the door seal has a lip surrounding the outside of the opening of the inner drum, an opening is provided at a position of the lip corresponding to the water guide edge, and the lip and the water guide edge partially coincide on the circumferential direction of the door seal.
23. A drum washing machine according to claim 18 wherein the at least a portion of the water conducting rim extends obliquely into the drum and towards the central axis of the drum.
24. A drum washing machine according to claim 18, characterized in that the water guide exceeds the mouth of the inner drum in the axial direction of the inner drum toward the inside of the inner drum.
25. A drum washing machine according to claim 24, characterized in that the part of the water guiding rim beyond the opening of the inner drum has a width L of not more than 3mm in the axial direction of the inner drum.
26. A drum washing machine according to claim 18, characterized in that in the axial direction of the inner drum, the minimum distance between the water guiding rim and the front wall of the inner drum is M, and the minimum distance between the door seal and the front wall of the inner drum is M, wherein M > M.
27. A drum washing machine according to claim 18, characterized in that the minimum distance N between the water guiding rim and the rim of the mouth of the inner drum is greater than 5 mm.
28. A drum washing machine according to claim 18, characterized in that the water guide rim comprises:
the supporting edge is positioned outside the inner cylinder and exceeds the cylinder opening of the inner cylinder in the radial direction of the inner cylinder;
and the flanging is connected with the supporting edge and extends towards the inside of the inner barrel.
29. A drum washing machine according to claim 28, characterized in that the surface of the flange facing the rim of the mouth of the inner drum is provided with a reservoir.
30. A drum washing machine as claimed in claim 29 wherein the reservoir has a plurality of water storage ribs therein, each of the water storage ribs extending in the width direction of the flange and the plurality of water storage ribs dividing the reservoir into a plurality of water storage regions arranged along the length direction of the reservoir.
31. A drum washing machine according to claim 29 wherein the turn-up has a head end and a tail end, the turn-up extending from the head end to the tail end in the direction of rotation of the inner drum, the reservoir being located at the tail end.
32. A drum washing machine according to claim 29, characterized in that the angle β between the turn-up and the support rim is not less than 105 °.
33. A drum washing machine according to claim 29, characterized in that at least one of the support rim and the turn rim is provided with a plurality of ribs.
34. A drum washing machine according to claim 33, characterized in that a plurality of the reinforcing ribs are provided on the surface of the flange facing away from the rim of the opening of the inner drum, each of the reinforcing ribs extends in the width direction of the flange and the plurality of reinforcing ribs are provided at intervals in the length direction of the flange.
35. A drum washing machine according to claim 34, characterized in that each of the ribs further extends to a surface of the support rim facing away from the inner drum.
36. A drum washing machine according to claim 19, characterized in that the water guide rim is provided on the door seal and is integrated with the door seal.
37. A drum washing machine according to claim 19, characterized in that the water guide rim is provided at the outer tub, and the water guide rim is one piece with the outer tub or is a separate piece mounted together.
38. A drum washing machine according to claim 1, characterized in that the front surface of the front wall of the inner drum is provided with a plurality of recesses and a plurality of protrusions, which are continuously arranged in the circumferential direction of the front wall of the inner drum and are alternately arranged.
39. A drum washing machine according to any of claims 1-38, characterized in that the water guiding structure comprises:
the water guide rib is arranged on the rear surface of the front wall of the outer barrel;
the water lifting rib is arranged on the outer surface of the peripheral wall of the inner cylinder and is positioned at the front part of the inner cylinder; or
And the water diversion rib is arranged on the inner surface of the peripheral wall of the outer barrel and is positioned at the front part of the outer barrel.
40. A drum washing machine according to claim 39, characterized in that the water guide rib is plural and arranged at intervals along the circumferential direction of the front wall of the outer tub.
41. A drum washing machine according to claim 40, characterized in that a plurality of water guiding ribs are distributed at least over the upper part of the front wall of the outer tub.
42. A drum washing machine according to claim 41, characterized in that the plurality of water guide ribs occupy more than half of the entire circumference of the front wall of the outer tub.
43. A drum washing machine according to claim 40, characterized in that the water guide rib has an inner end and an outer end along the length direction thereof, and the outer end is deviated from the line connecting the inner end and the center of the front wall of the outer tub along the circumferential direction of the front wall of the outer tub.
44. A drum washing machine according to claim 43, characterized in that a plurality of the water guiding ribs are distributed in a spiral radial shape from the center of the front wall of the outer tub to the outer periphery of the front wall of the outer tub.
45. A drum washing machine according to claim 39, characterized in that the water deflector is spaced a distance from the front wall of the inner drum.
46. A drum washing machine according to claim 39, characterized in that the water lifting ribs are plural and arranged at intervals along the circumferential direction of the peripheral wall of the inner drum.
47. A drum washing machine according to claim 46, characterized in that the plurality of water lifting ribs are distributed over the entire circumference of the circumferential wall of the inner drum in the circumferential direction of the circumferential wall of the inner drum.
48. A drum washing machine according to claim 46, characterized in that the water lifting ribs are arranged obliquely with respect to the axial direction of the inner drum.
49. A drum washing machine according to claim 48, characterized in that the included angle γ between the water lifting ribs and the axial direction of the inner drum is 20 ° -30 °.
50. A drum washing machine according to claim 39 wherein the water lifting rib is located within the range of the front 1/3 of the inner drum in the axial direction thereof.
51. A drum washing machine according to claim 39, characterized in that the water lifting rib is spaced from the peripheral wall of the outer tub by a certain distance.
52. A drum washing machine according to claim 39, characterized in that the water diversion ribs are plural and arranged at intervals along the circumferential direction of the peripheral wall of the outer tub.
53. A drum washing machine according to claim 52, characterized in that a plurality of the water diversion ribs are distributed over at least an upper portion of a peripheral wall of the outer tub.
54. A drum washing machine according to claim 53, characterized in that the plurality of water dividing ribs occupy more than half of the entire circumference of the peripheral wall of the outer tub.
55. A drum washing machine according to claim 52, characterized in that the water diversion rib extends along the axial direction of the outer tub.
56. A drum washing machine according to claim 39, characterized in that the water dividing ribs are spaced a distance from the peripheral wall of the inner drum.
57. A drum washing machine according to claim 39, characterized in that the water guide ribs are plural and arranged at intervals along the circumferential direction of the front wall of the outer tub, the water distribution ribs are plural and arranged at intervals along the circumferential direction of the circumferential wall of the outer tub, and the plural water guide ribs are connected with the plural water distribution ribs in one-to-one correspondence.
CN201810151677.3A 2018-02-14 2018-02-14 Drum washing machine Active CN110158267B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1196416A (en) * 1997-04-16 1998-10-21 松下电器产业株式会社 Washer
CN1782196A (en) * 1998-08-18 2006-06-07 Lg电子株式会社 Barrelhead of washing machine
KR100643889B1 (en) * 2004-11-12 2006-11-10 주식회사 대우일렉트로닉스 Woven goods guiding apparatus in drum-type washing machine
CN102471977A (en) * 2009-07-31 2012-05-23 Bsh博世和西门子家用电器有限公司 Door bowl for a household appliance door
CN102482835A (en) * 2009-09-09 2012-05-30 松下电器产业株式会社 Drum type washing machine
CN205420825U (en) * 2015-11-11 2016-08-03 无锡小天鹅股份有限公司 A drum type washing machine that is used for drum type washing machine's inner tube and has it
WO2017188755A1 (en) * 2016-04-27 2017-11-02 엘지전자 주식회사 Clothing treatment device
CN107587827A (en) * 2017-08-09 2018-01-16 无锡小天鹅股份有限公司 Door sealing circle, door body assembly and roller washing machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1196416A (en) * 1997-04-16 1998-10-21 松下电器产业株式会社 Washer
CN1782196A (en) * 1998-08-18 2006-06-07 Lg电子株式会社 Barrelhead of washing machine
KR100643889B1 (en) * 2004-11-12 2006-11-10 주식회사 대우일렉트로닉스 Woven goods guiding apparatus in drum-type washing machine
CN102471977A (en) * 2009-07-31 2012-05-23 Bsh博世和西门子家用电器有限公司 Door bowl for a household appliance door
CN102482835A (en) * 2009-09-09 2012-05-30 松下电器产业株式会社 Drum type washing machine
CN205420825U (en) * 2015-11-11 2016-08-03 无锡小天鹅股份有限公司 A drum type washing machine that is used for drum type washing machine's inner tube and has it
WO2017188755A1 (en) * 2016-04-27 2017-11-02 엘지전자 주식회사 Clothing treatment device
CN107587827A (en) * 2017-08-09 2018-01-16 无锡小天鹅股份有限公司 Door sealing circle, door body assembly and roller washing machine

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