WO2014161223A1 - 一种具有喷淋外桶盖的洗衣机及其内循环喷淋方法 - Google Patents

一种具有喷淋外桶盖的洗衣机及其内循环喷淋方法 Download PDF

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Publication number
WO2014161223A1
WO2014161223A1 PCT/CN2013/075787 CN2013075787W WO2014161223A1 WO 2014161223 A1 WO2014161223 A1 WO 2014161223A1 CN 2013075787 W CN2013075787 W CN 2013075787W WO 2014161223 A1 WO2014161223 A1 WO 2014161223A1
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WO
WIPO (PCT)
Prior art keywords
water
spray
washing machine
circulating
outer barrel
Prior art date
Application number
PCT/CN2013/075787
Other languages
English (en)
French (fr)
Inventor
吕佩师
田云
葛林
张琪
龚孟虎
Original Assignee
海尔集团公司
青岛海尔洗衣机有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201310110108.1A external-priority patent/CN104074031B/zh
Priority claimed from CN201310111862.7A external-priority patent/CN104074032B/zh
Application filed by 海尔集团公司, 青岛海尔洗衣机有限公司 filed Critical 海尔集团公司
Priority to KR1020157024629A priority Critical patent/KR20150135772A/ko
Priority to JP2016504445A priority patent/JP2016518890A/ja
Publication of WO2014161223A1 publication Critical patent/WO2014161223A1/zh

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis

Definitions

  • the invention relates to the field of washing machines, in particular to a washing machine with a spray circulation washing function, in particular to a washing machine with a spray outer lid and a circulating spraying method therein.
  • a washing machine having a washing machine having a washing and dewatering tub for accommodating laundry, a tub for accommodating the washing and dewatering tub, and a driving mechanism for rotationally driving the washing and dewatering tub are disclosed in Patent Document No. 98107000.
  • the washing water in the outer side of the washing and dewatering tub and the tub are raised by the rotation of the washing and dewatering tub, and water is sprayed from the upper washing dewatering tub.
  • the purpose of the comparative document is to provide a washing machine which does not depend on the rotation of the pulsator, circulates the washing water, does not damage the laundry, improves the washing performance, and reduces the unevenness of the washing.
  • the stirring force generated by the rotation of the washing and dewatering tub lowers the central portion of the washing water surface in the tub, and the water surface between the outer side of the washing tub and the tub rises continuously until the water level of the washing water surface exceeds the upper end portion of the washing and dewatering tub.
  • Sprinkle water into the interior of the washing and dewatering bucket may be further disposed above the tub to form a sprinkling water discharge portion between the washing dewatering tub and the upper side of the tub, and at least one of the outer peripheral side of the washing tub and the inner peripheral side of the tub may be formed to be adapted to rotate corresponding to the washing tub.
  • the rising wash water is directed to the guide wall.
  • the comparative document does have the beneficial effects of not improving the washing performance without damaging the washing, and at the same time reducing the uneven washing.
  • this simple laundry method which relies on the centrifugal force to raise the water level in the washing tub to cause the spray washing benefit has practical defects, which have certain requirements on the rotation speed of the washing tub and the water level of the inner tub. When the speed and water level do not meet certain requirements, the water in the inner bucket cannot reach the spray port of the outer tub cover, and the spray washing effect cannot be formed.
  • a washing machine and a washing using the same are disclosed in the specification of the invention patent application No. 02155940. In the washing machine which effectively removes dirt by the action of the detergent foam, after the detergent is dissolved, the detergent water is formed into a detergent foam and injected into the washing and dewatering tank from above to ensure good Detergency and reduce uneven washing.
  • a washing machine for circulating washing water and washing is disclosed.
  • the washing machine rotatably accommodates a washing and dewatering tank for accommodating laundry in a water storage tank, and is driven by a motor.
  • a pump chamber is formed on the inner surface of the water storage tank, and the washing water between the washing and dewatering tank and the water storage tank is concentrated in the pump chamber by the rotation of the washing and dewatering tank, and the water is lifted upward through the circulation path connected to the pump chamber.
  • this is also a washing machine that circulates washing water, and the washing water is circulated through the circulating water passage through the pump chamber.
  • the sprinkler is a separate structure that requires additional installation and production costs.
  • the invention patent No. 200410004726. 9 discloses an internal circulation spray type washing machine which adopts a washing method of circulating spray, and a sprinkling device is arranged on the outer lid of the washing machine to achieve the effect of spray washing.
  • the spraying device comprises: a water injection pipe, a water chamber, a waterfall forming portion, a limit baffle, and the water chamber is composed of an upper water chamber and a lower water chamber.
  • the washing water is pressed into the spraying device by the water pump through the circulation pipe, and first enters the water chamber, and the water is temporarily stored in this portion.
  • the washing water then reaches the formation of the waterfall, where the washing water is "pressed” to form the shape of the waterfall.
  • the waterfall is limited by the limit baffle and sprayed in the inner bucket.
  • the spray water flow is uneven, and the spray washing and rinsing effects are not good; 4) The structure of the sprinkler is complicated.
  • the present invention has been made in view of the above. SUMMARY OF THE INVENTION
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine which is simple in structure, low in cost, does not splash water on any water level spray, and has a stable spray area.
  • Another object of the present invention is to provide an outer tub cover having a spray function.
  • Another object of the present invention is to provide a circulating spray method in a washing machine with good spray effect, no sprinkling of water spray, uniform and stable spray water curtain.
  • a washing machine having a spray outer tub cover, comprising an inner tub, an outer tub and an inner circulation sprinkling system, and an outer tub cover is arranged above the outer tub
  • the internal circulation spraying system is mainly composed of a spraying component, a circulation pipe and a circulation pump, and the spraying component comprises a nozzle formed by the outer tub cover and a water inlet inclined at an outer circumference of the outer tub cover;
  • the circulation pipe includes at least two segments
  • the pipelines with different inner diameters are connected to the water inlet at one end and the circulation pump at the other end.
  • the spray water flow of the spray member is controlled by the change of the inner diameter of the circulation pipe and the inclination angle of the inlet water.
  • the circulation pipe comprises a first pipe having an inner diameter d and a second pipe having an inner diameter D, l ⁇ D/d ⁇ 1.8.
  • the first pipe is connected to the discharge port of the circulation pump
  • second The pipeline is connected to the water inlet of the spray member.
  • the end of the circulation pipe that communicates with the water inlet of the spray member is provided with a bending head, which satisfies the water flow direction angle ⁇ of the circulation pipe leading into the water inlet to be 100° ⁇ ⁇ ⁇ 108°.
  • the enthalpy is 105°.
  • the length L1 of the second pipe and the total length L of the circulation pipe satisfy 0. KL1/K0.
  • the angle ⁇ between the water inlet and the horizontal inclination is 10° ⁇ ⁇ ⁇ 18°.
  • the distance L0 between the lower surface of the nozzle and the upper surface of the balance ring provided above the inner tub is 4 mm ⁇ L0 ⁇ 12 mm.
  • the nozzles sequentially include an inclined portion near the horizontal portion and the inner side of the water inlet in the direction of the inner ring of the outer tub cover, and the angle ⁇ between the horizontal portion and the inclined portion is 150° ⁇ ⁇ ⁇ 180°.
  • 160° ⁇ ⁇ ⁇ 170° is 160° ⁇ ⁇ 170°.
  • the lower surface of the nozzle is provided with at least one set of curved water-blocking ribs for changing the state of water flow, and side ribs are arranged on both sides of the water flow direction.
  • the ribs on both sides are in a figure-eight shape, the narrow mouth communicates with the water inlet, and the wide mouth is the spray port of the spray water flow.
  • the edge on the side opposite to the water inlet is provided with a reinforcing rib protruding from the lower surface, and both ends of the reinforcing rib are connected with the side rib.
  • the water retaining rib comprises an arc-shaped water retaining rib, the center of the circle is located at one side of the water inlet, and the two ends of the arc-shaped water retaining rib extend to be connected with the two side ribs.
  • the lowest point of the arc-shaped water retaining rib is located at the transition between the horizontal portion of the nozzle and the inclined portion.
  • the water retaining rib comprises a plurality of curved splitting water retaining ribs, the two ends of which are located on the edge of the nozzle opposite to the water inlet, and the shunting water rib is matched with the nozzle edge between the two ends thereof.
  • the multi-segmented split shunt rib comprises a first split rib, which is a top-closed figure-eight structure, the top closed end faces the inlet, is closed by a circular section, and the end is located.
  • the nozzle edge on the opposite side of the nozzle further includes a second split rib, and the second split rib is located inside the first split rib, and the ends of the two split ribs coincide.
  • the circulating spray method of the washing machine of the invention controls the circulating water to sequentially pass through the following flow paths: the circulating water flows out from the drain port through the water pump, and the circulation pipe is transported from the bottom to the upper part of the outer tub; the water discharged from the circulation pipe is inclined upwardly
  • the outer lid is formed by the outer lid and the balance ring to form a spray water spray to the barrel. Further, the water flow in the circulation pipe changes to the outer lid of the outer lid, and the crucible is 100° ⁇ ⁇ ⁇ 108 °. Further, the circulating water enters the outer tub cover after being transformed from the bottom to the top in the circulation pipe.
  • the circulating water passes through the lower and upper sections of the circulation pipe from bottom to top, and the inner diameter of the lower circulation pipe is smaller than the inner diameter of the upper circulation pipe, and the water pressure is reduced to enter the outer bucket cover. Further, the circulating water is blocked by the lower surface of the outer tub cover and enters between the outer tub cover and the balance ring to form a diffused water flow. Wherein, a spray water outlet is formed between the lower surface of the nozzle and the upper surface of the balance ring. Further, when the circulating water flows out from between the outer tub cover and the balance ring, a spray water curtain is formed through the inner edge of the balance ring arc.
  • the circulating water is blocked by the convex ribs on the lower surface of the outer lid, the water collecting, the water dividing, the diffusion, and the inner edge of the balance ring are blocked to form a fan-shaped parabolic water curtain. Further, after the circulating water is refracted to the upper surface of the balance ring by the lower surface of the outer tub cover, a part of the water flows into the outer peripheral wall of the inner tub between the inner and outer tubs. Further, the width of the water curtain formed by the spray water spray to the inner tub is larger than the inner bucket radius, and the spray position covers the central area of the inner tub.
  • the inner circulation spray water flow of the invention is stable, and the spray does not splash water; the spray is uniform and the cover area is large; and a spray member is integrally formed on the outer drum cover of the existing washing machine, the spray member has a simple structure and a simple process, and is designed.
  • the utility model has the advantages of small area and low cost; improving the direction of the water flow of the spray member and improving the circulation tube having at least two different inner diameters to control the water pressure of the spray inlet, so that the spray effect of the invention is not affected by the water level and the inner drum speed Restriction, for any washing water level, the spraying process can not achieve water splashing.
  • the spraying water flow always falls in the central area of the inner barrel.
  • the stain is separated from the clothes to facilitate further washing of the clothes;
  • the spraying during rinsing is advantageous for removing the foam and improving the washing ratio;
  • the spraying member is an integral structure of the outer lid, and cooperates with the balance ring below, During the rotation of the inner tub, part of the spray water flows toward the outer side of the inner tub along with the balance ring, and has the function of cleaning the outer wall of the inner tub.
  • Figure 1 is a schematic view showing the structure of a spray outer tub cover of the washing machine of the present invention
  • FIG. 2 is a schematic view showing the installation structure of the circulation pipe and the water inlet of the present invention
  • FIG. 3 is a schematic cross-sectional view of the spray member and the circulation pipe of the present invention
  • FIG. 4 is a schematic cross-sectional view of the spray member of the present invention
  • Figure 6 is a schematic view showing the structure of the circulation pipe of the present invention
  • Figure 7 is a schematic view showing the coordinates of the parameter range of the preferred spray water flow of the washing machine of the present invention
  • FIG 8 is a schematic view of the spray water flow of the washing machine of the present invention
  • Figures 9 and 10 are schematic views of different spray water flows of the washing machine of the present invention
  • 11 to 14 are schematic views showing the structure of different embodiments of the shower member of the present invention. detailed description
  • the washing machine of the present invention comprises an inner tub 1, an outer tub 2 and an inner circulation spray system, and an outer tub cover 3 is arranged above the outer tub 2, and the inner circulation spray system is mainly sprayed.
  • the shower member 4, the circulation pipe 5, and a circulation pump are configured, wherein the shower member 4 includes a nozzle 41 integrally formed by the outer tub cover and a nozzle disposed obliquely to the outer periphery of the outer tub cover.
  • the water inlet port 42, the lower surface of the nozzle 41 and the upper surface of the lower inner barrel balance ring 6 constitute a spray water outlet chamber 10 (refer to FIG. 3), and the circulation pipe 5 includes at least two pipes 51 and 52 having different inner diameters.
  • the circulating spray method of the washing machine of the invention sequentially controls the circulating water to pass through the following flow paths in sequence: the circulating water flows out from the inner bucket drain through the water pump, and the circulation pipe 5 is transported from the bottom to the top of the outer tub 2; the water discharged from the circulation pipe 5 is inclined upward Entering the outer tub cover 3; the outer tub cover 3 and the balance ring 6 are guided to form a spray water spray to the bucket.
  • the circulating water utilizes a change in the diameter of the pipe in the circulation pipe 5, and the upper portion is thicker and thicker, so that the water pressure is reduced to enter the outer tub cover; and then the lower surface of the outer tub cover 3 is blocked and deformed, and is formed in the spray water outlet chamber 10. Diffusion water flow; when flowing out from between the outer lid and the balance ring, the spray water curtain is formed by the inner edge of the balance ring arc; the water curtain sprayed to the inner barrel 1 has a water curtain width larger than the inner barrel radius, and the spray position covers The inner area of the inner barrel.
  • the circulating water forms a fan-shaped parabolic water curtain by blocking the ribs on the lower surface of the outer lid, collecting water, separating water, diffusing and the inner edge of the balance ring; the circulating water is refracted to the upper surface of the balance ring through the lower surface of the outer lid After that, a part of the water flows into the outer peripheral wall of the inner tub between the inner and outer barrels.
  • the nozzle 41 of the present invention is integrally formed as a part of the outer tub cover, it is directly adjacent to the balance ring 6 disposed above the inner tub, and the lower surface of the nozzle and the upper surface of the balance ring 6 The distance L0 between the two is 4 mm ⁇ L0 ⁇ 12 mm.
  • the nozzle 41 cooperates with the lower balance ring 6 to partially discharge the water to the outside of the inner tub during the rotation of the inner tub, and has the function of cleaning the outer wall of the inner tub. As shown in FIG.
  • the inlet angle ⁇ of the water inlet and the horizontal inclination of the present invention is 10° ⁇ ⁇ ⁇ 18°, preferably 15°, and the inlet water flow and the nozzle cooperate to form a curved water flow, water flow. Stable and non-splashing, it does not splash water for any water level, which is good for washing large-sized bedding, down, bed sheets and more clothes.
  • the existing circulating sprinkler system although circulating in the middle and low water level When there is little water splashing, for high water levels, there is more water splashing.
  • the nozzles sequentially include a horizontal portion 43 adjacent to the water inlet and an inclined portion 44 on the inner side in the direction of the inner ring of the outer tub cover (see FIG.
  • a preferred circulation pipe 5 matched with the water inlet of the present invention comprises a first pipe 51 having an inner diameter d and a second pipe 52 having an inner diameter D, l ⁇ D/d ⁇ 1. 8.
  • the first line 51 is in communication with the circulation pump outlet, and the second line 52 is in communication with the spray member inlet 42 (see FIG. 3); the length L1 of the second line and the total length L of the circulation tube satisfy 0. 1 ⁇ L1/L ⁇ 0.
  • the above-mentioned circulation pipe can also be a pipe with a constant inner diameter, and a circulation pipe with a pipe diameter change is more effective.
  • the end of the circulation pipe and the water inlet of the present invention satisfies the water flow direction angle ⁇ of the circulation pipe leading into the water inlet to be 100° ⁇ ⁇ ⁇ 108° (refer to FIG. 3 ).
  • ⁇ the water flow direction angle
  • the end of the second conduit 52 communicating with the shower member inlet 42 is provided with a bending head 53, and the bending head 53 is bent.
  • FIG. 11 to FIG. 14 it is a schematic structural view of the lower surface of the nozzle of the present invention.
  • the lower surface of the nozzle 41 is provided with at least one set of curved water retaining ribs 7 for changing the state of water flow, and is provided on both sides of the water flow direction.
  • the side ribs are in the shape of a figure, the narrow mouth communicates with the water inlet, the wide mouth is the outlet of the spray water flow, and the spray water flow forms a fan-shaped parabolic water curtain downward from the spray port, which is a lantern Local structure.
  • the height of the curved water retaining ribs 7 is greater than the height of the side retaining ribs 8, which are smaller than L0.
  • the edge on the side opposite to the water inlet is provided with reinforcing ribs 9 protruding from the lower surface. The two ends of the reinforcing rib 9 are connected to the side ribs 8.
  • the water retaining rib 7 of the embodiment includes an arc-shaped water retaining rib 71, the center of which is located at one side of the water inlet, and both ends of the arc-shaped water retaining rib 71 extend to both sides.
  • the side ribs 8 are connected.
  • the arc-shaped water retaining rib 71 is dispersed after being collected first, so that the water flow is stable (see Fig. 8).
  • the lowest point A of the arcuate water retaining rib is located at the transition between the nozzle horizontal portion 43 and the inclined portion 44.
  • the water retaining rib 7 includes a plurality of curved split water retaining ribs 72, and the two ends are located on the opposite side of the water inlet, that is, the reinforcing ribs 9 Upper, the shunting water retaining rib 72 cooperates with the nozzle edge between the two ends to form a closed area B, the shunting water retaining rib 72 is bent at a circular arc chamfering, and the center of the shunting water retaining rib circular chamfer is closed In the region B, that is, the split water retaining rib 72 is curved, and its convex direction corresponds to the water inlet 42 so that the water flow flows in from the water inlet 42 and is dispersed by the split water retaining rib 72 (refer to Fig. 9).
  • Embodiment 3 Embodiment 3
  • the water retaining rib 7 of the embodiment includes the arc-shaped water retaining rib 71 in the first embodiment and the split water retaining rib 72 in the second embodiment.
  • the water rib 71 is blocked, and the water is pressed down to the balance ring.
  • the water-blocking rib 72 is fitted along the balance ring to form a water curtain effect similar to a "lantern-like", and the soft water is sprayed on the clothes or pressure. Cover, directly penetrate into the clothes or evenly spread along the surface of the gland to avoid the phenomenon of splashing water; the two different water retaining ribs match, making the spray water flow more beautiful and the spray area larger (see figure) 10).
  • the split water retaining rib 72 of the embodiment includes a first split water retaining rib 721 , which is a top-shaped closed figure-shaped structure, and the top closed end faces the water inlet 42 in a circular direction.
  • the arc segment is closed, and the end portion is located on the edge of the nozzle opposite to the water inlet, that is, the reinforcing rib 9, and further includes a second split water retaining rib 722, which is the point in the second embodiment.
  • the flow retaining water rib 72 structure, the second split water retaining rib 722 is located inside the first split water retaining rib 721, and the ends of the two split flow retaining ribs coincide on the reinforcing rib 9.
  • the inner diameter D1 is 20 mm ⁇ Dl ⁇ 28 mm; the inner diameter D of the second conduit 52 is D1 + KK is the thickness of the inlet 42; the inner diameter d of the first conduit 51 is l ⁇ D / d ⁇ 1. 8;
  • the water flow direction angle ⁇ into the water inlet 42 is 100° ⁇ ⁇ ⁇ 108°, that is, the bending angle of the circulation pipe bending head 53 of the present embodiment; the distance between the lower surface of the nozzle 41 and the upper surface of the balance ring 6 L0 is 1 ⁇ 2im ⁇ L0 ⁇ 12. As shown in Fig.
  • the horizontal axis of the coordinate axis indicates the inner diameter D1 of the water inlet 42, the distance L0 between the lower surface of the nozzle 41 and the upper surface of the balance ring 6, and the length L1 of the second conduit 52.
  • the vertical axis represents a parameter of the water flow direction of the circulation pipe 5 into the water inlet 42 to the angle of 9.
  • Embodiment 6 This embodiment is based on the fifth embodiment. As shown in FIG.
  • the d point in the figure can achieve the ideal inner circulation effect (refer to FIG. 10), the inner circulation spray water flow.

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  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

一种具有喷淋外桶盖（3）的洗衣机及其内循环喷淋方法，该洗衣机包括内桶（1）、外桶（2）、喷淋构件（4）、循环管（5）和循环泵，喷淋构件（4）包括由外桶盖（3）一体形成的喷嘴（41）和倾斜设于外桶盖（3）外周与喷嘴（41）相通的进水口（42），所述的喷嘴（41）下表面和平衡环（6）上表面之间构成喷淋出水腔（10）；循环管（5）包括两段不同内径的管路（51，52），一端与喷淋构件（4）的进水口（42）连通，另一端与循环泵连通；该洗衣机控制循环水依次经过下列流路：循环水由排水口流出通过水泵、循环管（5）由下向上输送到外桶（2）上部；由循环管（5）排出的水流倾斜向上进入外桶盖（3）；经外桶盖（3）和平衡环（6）导向形成喷淋水流喷淋至桶内。该喷淋构件结构简单、成本低，内循环喷淋系统对任何水位喷淋都不溅水，且喷淋区域稳定、喷淋均匀，有助于衣物的洗涤。

Description

一种具有喷淋外桶盖的洗衣机及其内循环喷淋方法 技术领域
本发明涉及洗衣机领域， 具体是一种具有喷淋循环洗功能的洗衣机， 尤其是一种具有喷 淋外桶盖的洗衣机及其内循环喷淋方法。 背景技术 目前， 全世界关于洗衣机的开发类型层出不穷， 应市场人们生活的需要， 设计人员从不 同的角度开发了具有各种功能的洗衣机， 如： 离心力洗衣的洗衣机、 具有喷淋装置的洗衣机、 具有双动力的洗衣机等等。 日本松下采用离心方式， 通过内桶的旋转带动水的同向旋转， 旋转的水因惯性和离心力 经外桶壁上的斜槽注入到外桶盖上的喷淋装置， 水经过外桶盖上的喷淋装置后形成瀑布状喷 洒在内桶里击打桶内的洗涤液形成更多的泡沫， 即所谓的 "泡沫洗"技术。 申请号为 98107000. 0的专利文献中公开了一种洗衣机， 具备容纳洗涤物的洗涤脱水桶、 使此洗涤脱水桶可自由旋转地被容纳的盛水桶以及旋转驱动此洗涤脱水桶的驱动机构， 其特 征在于用所述洗涤脱水桶的旋转使在洗涤脱水桶外侧与盛水桶间的洗涤水上升、 从上方向洗 涤脱水桶内洒水。 从对比文件中公开的内容可以看出， 该对比文件的目的在于提供一种不依赖于脉动器的 转动、 使洗涤水循环、 不使洗涤物受损伤、 提高洗涤性能与减少洗涤不均匀的洗衣机。 因洗 涤脱水桶的旋转产生的搅拌力使盛水桶内的洗涤水水面的中央部下降而洗涤脱水桶的外侧与 盛水桶间的水面不断上升， 直至使洗涤水面水位超过洗涤脱水桶的上端部的高度而向洗涤脱 水桶的内部洒水。 也可以进一步在盛水桶上方设置为在其与洗涤脱水桶上部间形成洒水排出 部的盖体， 在洗涤脱水桶外周侧面和盛水桶内周侧面的至少一个上面形成适于对应洗涤脱水 桶旋转而上升的洗涤水进行导向的导向壁。 对比文件与当时的现有技术相比， 确实具有不损 伤洗涤物而提高洗涤性能、 同时又能减少洗涤不均匀等有益效果。 但是， 这种单纯的靠离心 力作用将洗涤桶内的水位上升造成喷淋洗效益的洗衣方法， 实际上存在一些缺陷， 它对洗涤 桶的转速和内桶的水位都有一定的要求， 当内桶的转速、 水位没有达到一定要求时， 内桶的 水根本无法达到洗涤外桶盖的喷淋口处， 也就无法形成喷淋洗的效果。 申请号为 02155940. 6 的发明专利申请公开说明书中公开了一种洗衣机以及使用它的洗 涤方法， 在利用洗涤剂泡沫的作用有效的除去污垢的洗衣机中， 将洗涤剂溶解后， 使洗涤剂 水生成洗涤剂泡沫并从上方注入到洗涤兼脱水槽内的洗涤物上， 确保良好的洗净力并减少洗 涤不均匀的发生。
申请号为 02142716. X的发明专利中公开了一种使洗涤水循环进行洗涤和清洗的洗衣机， 该洗衣机在储水槽内回转自如的收容有收容洗涤物的洗涤兼脱水槽，并由电机进行回转驱动， 在储水槽的内面形成有泵室， 通过洗涤兼脱水槽的回转将洗涤兼脱水槽与储水槽之间的洗涤 水集中在泵室， 并经与泵室连接的循环路径向上方扬水。 实际上， 这也是将洗涤水循环使用 的一种洗衣机， 通过泵室将洗涤水通过循环水路循环。 在上述的对比文件中， 已经公开了离心力洗衣机以及喷淋洗衣机的概念， 与早先的洗衣 机相比较在原理、 功能、 结构等方面有较大的进步， 但是， 在这些现有技术中的洗衣机仍存 在以下缺点：
1 )采用离心方式形成瀑布喷淋时， 对水位和内桶的转速有一定的要求， 并且如果水位过 低或内桶转速不够时， 都达不到瀑布喷淋的效果；
2)现有的洗衣机中， 有的根本没有设置专门的喷淋装置， 有的喷淋装置占用外桶的盖面 积过大， 影响了洗衣机的注水效果；
3) 现有洗衣机的喷水口出水处没有设置专门的档水板， 瀑布喷射在桶内前后位置不定， 水流时前时后不稳定；
4) 喷淋装置为独立的结构， 需要额外的安装及生产成本。 申请号为 200410004726. 9 的发明专利公开了一种内循环喷淋式洗衣机， 采用循环喷淋 的洗涤方法， 在洗衣机外桶盖上设置一喷淋装置， 达到喷淋洗的效果。 该喷淋装置包括： 注 水管、 水腔、 瀑布形成处、 限位挡板， 而水腔又由上水腔和下水腔组成。 洗涤水由水泵经循 环管压入喷淋装置， 首先进入水腔， 水在此部位暂存。 然后洗涤水便到达瀑布形成处， 洗涤 水在此处即被 "压迫"形成为瀑布的雏形。 最后瀑布由限位挡板限位， 喷洒在内桶中。 此种喷淋装置虽然可以达到喷淋洗的效果， 但是仍存在以下缺点：
1 )洗涤过程， 喷淋水会溅水， 尤其是中、 高水位循环喷淋洗涤， 溅水较大， 存在安全隐 串.
2) 喷淋落点区域偏离内桶中心， 喷淋利用率低；
3) 喷淋水流不均匀， 喷淋洗涤、 漂洗效果不好； 4) 喷淋装置结构复杂。 有鉴于此特提出本发明。 发明内容 本发明要解决的技术问题在于克服现有技术的不足， 提供一种结构简单、 成本低， 对任 何水位喷淋都不溅水， 且喷淋区域稳定的洗衣机。 本发明另一目的在于提供一种具有喷淋功能的外桶盖。 本发明再一目的在于提供一种喷淋效果好、 喷淋不溅水、 喷淋水幕均匀、 稳定的洗衣机 内循环喷淋方法。 为解决上述技术问题， 本发明采用技术方案的基本构思是： 一种具有喷淋外桶盖的洗衣 机， 包括内桶、 外桶和内循环喷淋系统， 外桶上方设有外桶盖， 所述的内循环喷淋系统主要 由喷淋构件、 循环管和循环泵构成， 喷淋构件， 包括由外桶盖构成的喷嘴和倾斜设于外桶盖外周的进水口； 循环管， 包括至少两段不同内径的管路， 一端与进水口连通， 另一端与循环泵连通， 通 过循环管内径变化配合进水倾斜角度控制喷淋构件的喷淋水流。
进一步的，所述的循环管包括内径为 d的第一管路和内径为 D的第二管路， l <D/d< l. 8， 第一管路与循环泵排水口连通， 第二管路与喷淋构件进水口连通。 进一步的， 所述的循环管与喷淋构件进水口连通的一端设置有弯折头， 满足由循环管通 入进水口的水流变向角度 Θ为 100° < Θ < 108° 。 优选的， Θ为 105° 。 进一步的， 所述第二管路的长度 L1与循环管总长度 L满足 0. KL1/K0. 5。 进一步的， 所述的进水口与水平的倾斜夹角 α为 10° < α < 18° 。 进一步的，喷嘴下表面与设于内桶上方的平衡环上表面之间的距离 L0为 4mm<L0< 12mm。 进一步的， 所述的喷嘴沿外桶盖的外圈向内圈方向依次包括靠近进水口的水平部和内侧 的倾斜部， 水平部和倾斜部的夹角 β为 150° < β < 180° 。 优选的， 160° < β < 170° 。 进一步的， 所述的喷嘴下表面设有至少一组改变水流状态的弯曲状挡水筋， 沿水流方向 两侧设有侧边挡筋。 两侧边挡筋呈八字形， 窄口与进水口相通， 宽口为喷淋水流的喷淋口。 优选的， 与进水口相对一侧的边缘上设有凸出于下表面的加强凸筋， 该加强凸筋两端与 侧边挡筋连接。 进一步的， 所述的挡水筋包括一圆弧状挡水筋， 圆心位于进水口一侧， 圆弧状挡水筋的 两端延伸与两侧边挡筋连接。 优选的， 圆弧状挡水筋的最低点位于喷嘴水平部和倾斜部过渡处。 进一步的， 所述的挡水筋包括一多段弯折状的分流挡水筋， 两端部位于与进水口相对一 侧的喷嘴边缘上， 分流挡水筋与其两端之间的喷嘴边缘配合形成封闭区域， 该分流挡水筋弯 折处圆弧倒角， 分流挡水筋圆弧倒角的圆心位于封闭区域内。 优选的， 多段弯折状的分流挡水筋包括第一分流挡水筋， 为一呈顶部封闭的八字形结构， 顶部封闭端正对进水口的方向， 为圆弧段封闭， 端部位于与进水口相对一侧的喷嘴边缘上， 还包括第二分流挡水筋， 第二分流挡水筋位于第一分流挡水筋内部， 两分流挡水筋的端部重 合。 本发明所述的洗衣机内循环喷淋方法， 控制循环水依次经过下列流路： 循环水由排水口流出通过水泵、 循环管由下向上输送到外桶上部； 由循环管排出的水流倾斜向上进入外桶盖； 经外桶盖和平衡环导向形成喷淋水流喷淋至桶内。 进一步的， 循环管内水流变向 Θ角度进入外桶盖， Θ为 100° < Θ < 108 ° 。 进一步的， 循环水在循环管内由下向上经过变压后进入外桶盖。 进一步的， 循环水由下向上依次通过循环管下段、 上段， 下段循环管内径小于上段循环 管内径， 水压减小进入外桶盖。 进一步的， 循环水经外桶盖下表面阻挡变向， 进入外桶盖和平衡环之间， 形成扩散水流。 其中， 喷嘴下表面和平衡环上表面之间构成喷淋出水腔。 进一步的， 循环水从外桶盖和平衡环之间流出时， 经平衡环圆弧内沿作用形成喷淋水幕。 进一步的， 循环水通过外桶盖下表面凸筋阻挡、 集水、 分水、 扩散及平衡环内沿的配合 阻挡形成扇形的抛物状水幕。 进一步的， 循环水通过外桶盖下表面阻挡折射到平衡环上表面后， 其中一部分水流入内 外桶之间清洗内桶外周壁。 进一步的， 喷淋水流喷淋至内桶形成的水幕宽度大于内桶半径， 喷淋位置覆盖内桶中心 区域。 采用上述技术方案后， 本发明与现有技术相比具有以下有益效果。 本发明内循环喷淋水流稳定、 喷淋不溅水； 喷淋均匀、 覆盖面积大； 在现有的洗衣机外 桶盖上一体成型一喷淋构件， 该喷淋构件结构简单， 工艺简单， 设计面积小， 成本低廉； 通 过改进喷淋构件进水水流的方向， 及改进循环管具有至少两个不同大小的内径以控制喷淋进 水水压， 使得本发明喷淋效果不受水位和内桶转速限制， 对任何洗涤水位都能实现喷淋过程 不溅水， 喷淋水流始终落于内桶中心区域， 洗涤时有利于浸湿衣物， 加快溶解洗涤液， 使其 充分与衣物结合， 发生作用， 将污渍从衣物上分开， 有助于衣物的进一步洗净； 漂洗时喷淋 利于去除泡沫， 提高洗净比； 本发明由于喷淋构件为外桶盖一体成型结构， 与下方的平衡环 配合， 在内桶转动过程中部分喷淋水随平衡环转动流向内桶外侧， 具有清洗内桶外壁的功能。 下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
图 1是本发明洗衣机喷淋外桶盖结构示意图；
图 2是本发明循环管和进水口安装结构示意图； 图 3是本发明喷淋构件和循环管剖面示意图； 图 4是本发明喷淋构件剖面示意图； 图 5是本发明具有喷淋构件的外桶盖局部示意图； 图 6是本发明循环管结构示意图； 图 7是本发明洗衣机形成优选喷淋水流的参数范围坐标示意图；
图 8是本发明洗衣机喷淋水流示意图； 图 9和图 10是本发明洗衣机不同喷淋水流示意图；
图 11至图 14是本发明喷淋构件不同实施例的结构示意图。 具体实施方式
如图 1至图 14所示， 本发明所述洗衣机包括内桶 1、 外桶 2和内循环喷淋系统， 外桶 2 上方设有外桶盖 3， 所述的内循环喷淋系统主要由喷淋构件 4、循环管 5和循环泵（图中未示 出）构成， 其中， 所述的喷淋构件 4包括由外桶盖一体形成的喷嘴 41和倾斜设于外桶盖外周 与喷嘴相通的进水口 42， 所述的喷嘴 41下表面和下方内桶平衡环 6上表面之间构成喷淋出 水腔 10 (参阅图 3 ) ， 循环管 5， 包括至少两段不同内径的管路 51、 52， 一端与喷淋构件的 进水口 42连通， 另一端与循环泵连通 （参阅图 6 ) 。 本发明洗衣机内循环喷淋方法， 控制循环水依次经过下列流路： 循环水由内桶排水口流 出通过水泵、 循环管 5由下向上输送到外桶 2上部； 由循环管 5排出的水流倾斜向上进入外 桶盖 3; 经外桶盖 3和平衡环 6导向形成喷淋水流喷淋至桶内。 其中， 循环水在循环管 5内利用管径的变化， 下细上粗， 使得水压减小进入外桶盖； 然 后经外桶盖 3下表面阻挡变向， 在喷淋出水腔 10中形成扩散水流； 从外桶盖和平衡环之间流 出时， 经平衡环圆弧内沿作用形成喷淋水幕； 喷淋水流喷淋至内桶 1形成的水幕宽度大于内 桶半径， 喷淋位置覆盖内桶中心区域。
循环水通过外桶盖下表面凸筋阻挡、 集水、 分水、 扩散及平衡环内沿的配合阻挡形成扇 形的抛物状水幕； 循环水通过外桶盖下表面阻挡折射到平衡环上表面后， 其中一部分水流入 内外桶之间清洗内桶外周壁。
如图 3所示， 由于本发明所述的喷嘴 41为外桶盖上的一部分一体成型构成， 因此其直接 与设于内桶上方的平衡环 6相邻， 喷嘴下表面与平衡环 6上表面之间的距离 L0为 4mm<L0< 12mm。喷嘴 41与下方的平衡环 6配合，在内桶转动过程中部分喷淋水顺平衡环流向内桶外侧， 具有清洗内桶外壁的功能。 如图 4所示， 本发明所述的进水口与水平倾斜夹角 α为 10° < α < 18° ， 优选为 15° ， 该角度进水水流与喷嘴配合形成接近弧形的反射水流， 水流稳定且不溅水， 对于任何档的水 水位均不溅水， 有利于洗涤大体积的被褥、 羽绒、 床单及较多的衣物， 而现有的循环喷淋系 统， 虽然在中低水位循环洗涤时， 很少溅水， 但是对于高水位， 则溅水较多。 所述的喷嘴沿外桶盖的外圈向内圈方向依次包括靠近进水口的水平部 43 和内侧的倾斜 部 44 (参阅图 5 ) ， 水平部 43和倾斜部 44的夹角 β为 150° < β < 180° ； 优选的， 160° < β < 170° 。 如图 6所示， 优选的与本发明所述进水口配合的循环管 5， 包括内径为 d的第一管路 51 和内径为 D的第二管路 52， l <D/d< 1. 8， 第一管路 51与循环泵排水口连通， 第二管路 52 与喷淋构件进水口 42连通（参阅图 3 ) ； 所述第二管路的长度 L1与循环管总长度 L满足 0. 1 <L1/L<0. 5; 上述循环管也可为内径不变的管路， 采用管径变化的循环管效果更好。 本发明所述的所述的循环管与进水口连通的一端满足由循环管通入进水口的水流变向角 度 Θ为 100° < Θ < 108° (参阅图 3 ) 。 为了上述循环管分别与循环泵排水口、 喷淋构件进 水口 42连通方便， 所述第二管路 52与喷淋构件进水口 42连通的一端设置有弯折头 53， 弯 折头 53弯折角度即满足由循环管 5通入进水口 42的水流变向角度 Θ为 105° ； 为了与循环 泵连接方便， 第一管路 51的末端也设有弯折头 54 (参阅图 6 ) 。 如图 11至图 14所示， 为本发明喷嘴下表面的结构示意图， 所述的喷嘴 41下表面设有至 少一组改变水流状态的弯曲状挡水凸筋 7， 沿水流方向两侧设有侧边挡筋 8， 两侧边挡筋呈八 字形， 窄口与进水口相通， 宽口为喷淋水流的出口， 喷淋水流由喷淋口向下形成一扇形的抛 物面水幕， 呈灯笼状局部结构。 优选的， 弯曲状挡水凸筋 7的高度大于侧边挡筋 8的高度， 均小于 L0， 更优选的， 与进水口相对一侧的边缘上设有凸出于下表面的加强凸筋 9， 该加强 凸筋 9两端与侧边挡筋 8连接。 实施例一
如图 11所示， 本实施例所述的挡水凸筋 7包括一圆弧状挡水凸筋 71， 圆心位于进水口 一侧， 圆弧状挡水凸筋 71的两端延伸与两侧边挡筋 8连接。 该圆弧状挡水凸筋 71为先聚水 后分散， 使得水流平稳 （参阅图 8 ) 。 优选的， 圆弧状挡水凸筋的最低点 A位于喷嘴水平部 43和倾斜部 44过渡处。 实施例二
如图 12所示， 本实施例所述的挡水凸筋 7包括一多段弯折状的分流挡水凸筋 72， 两端 部位于与进水口相对一侧的喷嘴边缘即加强凸筋 9上，分流挡水凸筋 72与其两端之间的喷嘴 边缘配合形成封闭区域 B， 该分流挡水凸筋 72弯折处圆弧倒角， 分流挡水凸筋圆弧倒角的圆 心位于封闭区域 B内， 也就是说， 该分流挡水凸筋 72弯曲， 其凸出的方向对应进水口 42， 使得水流由进水口 42流入后通过分流挡水凸筋 72分散 （参阅图 9) 。 实施例三
如图 13所示， 本实施例所述的挡水凸筋 7包括上述实施例一中的圆弧状挡水凸筋 71和 实施例二中的分流挡水凸筋 72， 受圆弧状挡水凸筋 71 隔挡， 下压水流至平衡环上， 最终沿 分流挡水凸筋 72配合平衡环顺流而下， 形成类似"灯笼状"的水帘效果， 柔和的水流洒在衣 物或压盖上， 直接渗透到衣物内或沿压盖表面均匀铺开， 避免了溅水现象的出现； 该两不同 挡水凸筋配合， 使得喷淋水流形状更美观， 喷淋区域更大 （参阅图 10) 。 实施例四
如图 14所示， 本实施例所述的分流挡水凸筋 72包括第一分流挡水凸筋 721， 为一呈顶 部封闭的八字形结构， 顶部封闭端正对进水口 42的方向， 为圆弧段封闭， 端部位于与进水口 相对一侧的喷嘴边缘即加强凸筋 9上， 还包括第二分流挡水凸筋 722， 即为实施例二中的分 流挡水凸筋 72结构， 第二分流挡水凸筋 722位于第一分流挡水凸筋 721内部， 两分流挡水凸 筋的端部在加强凸筋 9上重合。 实施例五 本实施例具体公开了形成优选喷淋水流的参数范围， 是由下述条件配合形成， 排水泵额 定流量为： 在额定电压 220V条件下， 当扬程为 1. 0m时， 流量不小于 20L/min， 扬程为 1. 2m 时， 额定流量不小于 17L/min; 循环管 5总长度 L L=820 第二管路 52长度 L1为 0. 1 < L1/L<0. 5； 进水口 42内径 D1为 20mm<Dl <28mm; 第二管路 52内径 D=D1+K K为进水口 42 管路厚度； 第一管路 51内径 d为 l <D/d< 1. 8; 循环管 5通入进水口 42的水流变向角度 Θ 为 100° < Θ < 108° ， 也即是本实施例循环管弯折头 53的折弯角度； 喷嘴 41下表面与平衡 环 6上表面之间的距离 L0为 ½im<L0< 12 如图 7所示， 坐标轴横轴为同时表示进水口 42内径 Dl、 喷嘴 41下表面与平衡环 6上表 面之间的距离 L0及第二管路 52长度 L1的参数； 纵轴表示循环管 5通入进水口 42的水流变 向角度 9的参数。 Ti= (Dl , θ L0 LI ) 为本实施例形成优选喷淋水流的参数， 形成本发明 优选喷淋水流的参数范围为图中所示的可行矩形域范围， i为该范围内的各坐标点。 实施例六 本实施例在实施例五的基础上， 如图 7所示， 形成优选喷淋水流的参数在图示的矩形可 行域范围内， Ta= (28, 108° 12 400)、 Tb= (20 100° , 4 80)、 Tc= (22, 107° , 6 150)、 Td= (24 105° 8. 8 300)、 Te= (23, 102° 7 200) 、 Tf= (27, 104° 10 350)对应的 参数形成更优选的喷淋水流参数， 进一步确定 K为 4. 5 D/d= 1. 62 L1/L = 0. 36， 可以 知道第二管路 52内径 D、 L、 d等参数。 或者， 更进一步的， 在图示的矩形可行域范围内， 进行最优选的取样并实际验证确认， 取图中的 d点可实现理想的内循环效果 （参阅图 10) ， 内循环喷淋水流效果线性规划最优解 为 Td= (24 105° 8. 8 300)。 上述实施例中的实施方案可以进一步组合或者替换， 且实施例仅仅是对本发明的优选实 施例进行描述， 并非对本发明的构思和范围进行限定， 在不脱离本发明设计思想的前提下， 本领域中专业技术人员对本发明的技术方案作出的各种变化和改进， 均属于本发明的保护范 围。

Claims

权 利 要 求 书
1、 一种具有喷淋外桶盖的洗衣机， 包括内桶、 外桶和内循环喷淋系统， 外桶上方设有 外桶盖， 其特征在于： 所述的内循环喷淋系统主要由喷淋构件、 循环管和循环泵构成， 喷淋构件， 包括由外桶盖构成的喷嘴和倾斜设于外桶盖外周的进水口； 循环管， 包括至少两段不同内径的管路， 一端与进水口连通， 另一端与循环泵连通， 通过循环管内径变化配合进水倾斜角度控制喷淋构件的喷淋水流。
2、 根据权利要求 1所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述的循环管 包括内径为 d的第一管路和内径为 D的第二管路， l <D/d< 1. 8， 第一管路与循环泵排水口 连通， 第二管路与喷淋构件进水口连通。
3、 根据权利要求 1或 2所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述的循 环管与喷淋构件进水口连通的一端设置有弯折头， 满足由循环管通入进水口的水流变向角 度 Θ为 100° < Θ < 108°
4、 根据权利要求 2所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述第二管路 的长度 L1与循环管总长度 L满足 0. KL1/K0. 5
5、 根据权利要求 1或 2所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述的进 水口与水平的倾斜夹角 α为 10° < α < 18°
6、 根据权利要求 1所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 喷嘴下表面与 设于内桶上方的平衡环上表面之间的距离 L0为 ½im<L0< 12
7、 根据权利要求 6所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述的喷嘴沿 外桶盖的外圈向内圈方向依次包括靠近进水口的水平部和内侧的倾斜部， 水平部和倾斜部 的夹角 β为 150° < β < 180°
8、 根据权利要求 1所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述的喷嘴下 表面设有至少一组改变水流状态的弯曲状挡水筋， 沿水流方向两侧设有侧边挡筋。
9、 根据权利要求 8所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述的挡水筋 包括一圆弧状挡水筋， 圆心位于进水口一侧， 圆弧状挡水筋的两端延伸与两侧边挡筋连接。
10、 根据权利要求 8或 9所述的一种具有喷淋外桶盖的洗衣机， 其特征在于： 所述的 挡水筋包括一多段弯折状的分流挡水筋， 两端部位于与进水口相对一侧的喷嘴边缘上， 分 流挡水筋与其两端之间的喷嘴边缘配合形成封闭区域， 该分流挡水筋弯折处圆弧倒角， 分 流挡水筋圆弧倒角的圆心位于封闭区域内。
11、 一种如权利要求 l-io任一所述洗衣机的内循环喷淋方法， 其特征在于： 控制循环 水依次经过下列流路：
循环水由排水口流出通过水泵、 循环管由下向上输送到外桶上部；
由循环管排出的水流倾斜向上进入外桶盖；
经外桶盖和平衡环导向形成喷淋水流喷淋至桶内。
12、 根据权利要求 11所述的洗衣机内循环喷淋方法， 其特征在于： 循环管内水流变向 9角度进入外桶盖， Θ为 100° < Θ < 108° 。
13、 根据权利要求 11所述的洗衣机内循环喷淋方法， 其特征在于： 循环水在循环管内 由下向上经过变压后进入外桶盖。
14、 根据权利要求 13所述的洗衣机内循环喷淋方法， 其特征在于： 循环水由下向上依 次通过循环管下段、 上段， 下段循环管内径小于上段循环管内径， 水压减小进入外桶盖。
15、 根据权利要求 11所述的洗衣机内循环喷淋方法， 其特征在于： 循环水经外桶盖下 表面阻挡变向， 进入外桶盖和平衡环之间， 形成扩散水流。
16、 根据权利要求 15所述的洗衣机内循环喷淋方法， 其特征在于： 循环水从外桶盖和 平衡环之间流出时， 经平衡环圆弧内沿作用形成喷淋水幕。
17、 根据权利要求 15所述的洗衣机内循环喷淋方法， 其特征在于： 循环水通过外桶盖 下表面凸筋阻挡、 集水、 分水、 扩散及平衡环内沿的配合阻挡形成扇形的抛物状水幕。
18、 根据权利要求 16所述的洗衣机内循环喷淋方法， 其特征在于： 循环水通过外桶盖 下表面阻挡折射到平衡环上表面后， 其中一部分水流入内外桶之间清洗内桶外周壁。
19、 根据权利要求 11-18任一所述的洗衣机内循环喷淋方法， 其特征在于： 喷淋水流 喷淋至内桶形成的水幕宽度大于内桶半径， 喷淋位置覆盖内桶中心区域。
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