CN1081700C

CN1081700C - Washing machine

Info

Publication number: CN1081700C
Application number: CN97115599A
Authority: CN
Inventors: 竹川正训; 今井俊次; 斋藤克哉; 神谷纯司
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1996-07-22
Filing date: 1997-07-22
Publication date: 2002-03-27
Anticipated expiration: 2017-07-22
Also published as: JP3508405B2; IN191996B; CN1172874A; KR980009624A; TW389803B; MY119186A; KR100332034B1; JPH1033883A

Abstract

In a washing machine to circulate washing water by making use of a circulation water channel provided in a washing tub, thereby promoting dissolving of detergent, and to wash while distributing washing water over the clothes from above the washing tub, if the water level is set relatively low and the volume of washing water discharged from above the circulation water channel is small, the washing water from the discharge port is distributed uniformly over the clothes, and the uneven washing is decreased and the washing performance is enhanced. A pulsator 2 is rotatably disposed in the bottom of a washing tub 1, and a circuiation water channel 16 is composed for feeding water from a pump compartment 14 formed at the back side of the pulsator 2 toward the upward direction of the side wall of the washing tub 1 by a guide wall 17. The guide wall 17 extends a nearly L-shaped portion 17b at the upper end side of the rear wall so as to form a discharge port 18 against the upper end portion of the front wall 17a, and the upper end portion of the front wall 17a is projected upward to be formed nearly in an arc. To uniformly sprinkle washing water from an ejection port to clothes, to reduce washing irregularity and to improve washing performance even in the case that a water level is set relatively low and the water amount of the washing water ejected from the upper part of a circulation water path is little. A pulsator 2 is freely rotatably disposed to the bottom part of a washing tank 1 and the circulation water path 16 for sending water is constituted from a pump chamber 14 formed on the back surface side of the pulsator 2 to the side wall upper part of the washing tank 1 by a guide wall part 17. For the guide wall part 17, an almost L-shaped part 17b is extended so as to form the ejection port 18 between a front wall upper end part 17a on the rear wall upper end side and the front wall upper end part 17a is formed in an almost circular arcuate shape projected upwards.

Description

Washing machine

The present invention relates to a kind of utilization and be located at the dissolving that the interior circulation waterway of sink makes the washings circulation, promotes washing agent, simultaneously the washing machine that sprays washings and clean to the clothing class from the top of sink.

In the past, the structure of this washing machine as shown in Figure 8.Below this structure is described.

As shown in the figure, on the bottom surface of sink 1, rotate and set washing ripple dish 2 freely, the ring flange 3 that usefulness is installed is installed in the inside of bottom surface.The fluid balancer 4 of sealing liquid body in the top of sink 1 is being fixed.Holding sink 1 in the tank 5,, on this substrate 6, setting the motor 8 that drives washing ripple dish 2 simultaneously by driving mechanism portion 7 at outer bottom installation base plate 6.And tank 5 carries out the vibrationproof supporting by the top gusset of housing 9 by suspension rod 10.

It constitutes on the medial surface of sink 1, setting the circulation waterway 12 in the guide wall portion that is enclosed in 11 of opening upward, utilize the rotation of washing ripple dish 2, the washings of washing ripple dish 2 the insides spray in sink 1 from the ejiction opening 15 that is located at circulation waterway 12 tops through circulation waterways 12 from the pump chamber 14 that the periphery of blade 13 in washing ripple dish 2 forms.

But, in this washing machine in the past, the influence of the position relation of the big or small degree that largely is subjected to stirring from the flowing water shape of the washings of top ejiction opening 15 ejection of circulation waterway 12, ejiction opening 15 and the water surface and the shape of ejiction opening 15 according to the clothing class in the sink 1 of the degree of the kind of clothing class and amount, because of on the frequent irregular clothing class that washings can not be sprayed at equably in the sink 1, exist to make the washings that contain washing agent, foam etc. to sink 1 outside, disperse and make to wash the irregular unfavorable condition that increases.

The present invention is for addressing the above problem, its purpose is, even must be lower and under the water yield of the washings of ejection is few above the circulation waterway the situation, also will make from the washings of ejiction opening ejection to be sprayed at equably on the clothing class, make the irregular minimizing of washing and improve washing (-)off properties in water level settings.

The present invention in order to achieve the above object, set washing ripple dish freely in the rotation of the bottom of sink, utilize guide wall portion to constitute the circulation waterway that above the sidewall of sink, supplies water from pump chamber in the side formation of the inside of washing ripple dish, guide wall portion its rear wall upper end side extend roughly L font portion and and the antetheca upper end between form ejiction opening, it is outstanding upward roughly circular-arc that the antetheca upper end is formed.

Thus, even be set lowlyer and under the few situation of the water yield of the washings that spray above the circulation waterway at water level, also can be sprayed at equably on the clothing class from the washings of ejiction opening, it is irregular and improve washing (-)off properties to reduce washing.

Technical scheme 1 described invention of the present invention, its characteristics are, have sink, rotating the washing ripple dish set freely on the bottom of described sink, constituting the guide wall portion of the circulation waterway that above the sidewall of described sink, supplies water from the pump chamber that forms in the inside of described washing ripple dish side, described guide wall portion its rear wall upper end side extend roughly L font portion and and the antetheca upper end between form ejiction opening.Make described antetheca upper end form give prominence to upward roughly circular-arc, thus, owing to make roughly narrower between L font portion and the antetheca upper end on the central portion of ejiction opening, roughly broadening between L font portion and the antetheca upper end on the both ends, the major part that can make its main flow from the water of circulation waterway top ejection is disperseed to both ends from the central portion of ejiction opening, even the water level of the washings in sink is lower, the water yield of ejection more after a little while, washings are sprayed in the scope of broadness equably, can make the irregular minimizing of washing and improve washing (-)off properties.

Technical scheme 2 described inventions are according to technique scheme 1 described invention, its characteristics are, making roughly, the relative horizontal direction of L font portion is inclined upwardly, and roughly circular-arc antetheca upper end between form ejiction opening, even under the situation that the water level of the washings in sink is low, the water yield of ejection is few, also can make arrive the center of sink from the washings of ejiction opening ejection near, and owing to make the antetheca upper end form give prominence to upward roughly circular-arc, so can washings be sprayed equably.And, by limiting roughly being inclined upwardly of L font portion, ejiction opening is present on the roughly diagonal of sink in couples, and under the more situation of the water yield of ejection, can suppress to produce dispersing of washing agent and foam from the washings of a plurality of ejiction opening ejections owing to colliding mutually.

Technical scheme 3 described inventions are according to

technique scheme

1 or 2 described inventions, its characteristics are, roughly L font portion with the antetheca upper end of guide wall portion radially with the both direction of radial direction on from above cover, simultaneously in the shape that on the center position of sink, makes terminal expansion, because washings rise in circulation waterway, below the roughly L font portion of top, be roughly ejection fan, no matter the big or small degree that the clothing class of the clothing time-like that many washing quantity are many etc. is stirred, when each counter-rotating of washing ripple dish, can spread all over widely scope uneven clothing class in sink from interior Monday of the end of sink and spray washings, and can prevent washings because of ejection produce the part that the clothing class is spread across and the part that is not spread across produce wash irregular.

The simple declaration of accompanying drawing:

Fig. 1 is the washing machine cutaway view of the present invention the 1st embodiment.

Fig. 2 is the major part amplification view of the same washing machine.

Fig. 3 is the washing machine major part cutaway view of the present invention the 2nd embodiment.

Fig. 4 is the performance plot that the washings of the inclination angle of roughly L font portion of the same washing machine and ejection arrive distance.

Fig. 5 is the inclination angle of roughly L font portion of the same washing machine and the performance plot of washings amount of dispersing outside sink.

Fig. 6 is the washing machine major part cutaway view of the present invention the 3rd embodiment.

Fig. 7 is the major part cutaway view of the same washing machine.

Fig. 8 is a washing machine cutaway view in the past.

Following with reference to the description of drawings embodiments of the invention.And, adopt same label with the part that routine structure was identical in the past, explanation is omitted.

Embodiment 1:

As depicted in figs. 1 and 2, circulation waterway 16 is enclosed in the guide wall portion 17, and is formed at the pump chamber 14 that constitutes from the periphery by blade 13 in the washing ripple dish 2 bottom to fluid balancer 4.Guide wall portion 17 its rear wall upper end side extend roughly the 17b of L font portion and and antetheca upper end 17a between form outlet 18, it is outstanding upward roughly circular-arc that antetheca upper end 17a is formed.At this moment, the antetheca upper end 17a at ejiction opening 18 places with the spacing of the 17b of L font portion roughly is: at central portion S=4-10mm, in the structure of both ends T=6-12mm, T-S＞2.

Action in said structure now is described, clothing class and washing agent are dropped in the sink 1, supply water to predetermined water level, and the rotational synchronization of washing ripple dish 2, the washings of washing ripple dish 2 the insides form from the periphery at lining blade 13 when each counter-rotating pump chamber 14 through circulation waterways 16 from the antetheca upper end 17a of guide wall portion 17 and roughly the ejiction opening 18 between the 17b of L font portion in sink 1, spray.

Here, because the spacing of the antetheca upper end 17a of ejiction opening 18 and the 17b of L font portion roughly is for along with become greatly (S＜T) gradually to both ends from central portion, water level in sink 1 is low, the top of circulation waterway 16 suct and the water yield of the washings that spray less, when ejection pressure is also low, the main flow that is positioned at circulation waterway 16 centers is when arriving antetheca upper end 17a, and just the central portion from ejiction opening 18 disperses to the direction at both ends.Therefore, become broadly from the flowing water shape of the washings of ejiction opening 18 ejection, both guaranteed to be roughly fan-shaped, can spray uniform washings in the broad range of clothing class again, it is irregular and improve washing (-)off properties to reduce washing.

Embodiment 2:

As shown in Figure 3, configuration cycles water route 19 on the roughly diagonal of sink 1, each circulation waterway 19 is enclosed in the guide wall portion 20.Guide wall portion 20 its rear wall upper end side extend roughly the 20b of L font portion and and antetheca upper end 20a between form ejiction opening 21.This roughly the 20b of L font portion have relative horizontal direction be the 5-15 degree to upper angle W.Antetheca upper end 20a forms give prominence to upward roughly circular-arc.Other structures are identical with the foregoing description 1.

Action in said structure now is described, clothing class and washing agent are dropped in the sink 1, supply water to predetermined water level, with the rotational synchronization of washing ripple dish 2, the pump chamber 14 that the washings of washing ripple dish 2 the insides form from the periphery at lining blade 13 when each counter-rotating through circulation waterways 19 from the antetheca upper end 20a of guide wall portion 20 and roughly the ejiction opening 21 between the 20b of L font portion be ejected in the sink.

In addition, when the water level in sink 1 hangs down, above circulation waterway 19, suct and the water yield of the washings that spray few, ejection pressure is step-down also, the arrival distance D of washings shortens.Here, as shown in Figure 4, if the angle W that the relative horizontal direction of the roughly L font 20b of portion of guide wall portion 20 makes progress is big more, then the arrival distance D from the washings of ejiction opening 21 ejections is long more.

In the present embodiment, by the 20b of L font portion roughly have relative horizontal direction be 5 degree above to upper angle W, can make arrive the center d of sink 1 from the washings of ejiction opening 21 ejections near.And, owing on the roughly diagonal of sink 1, set circulation waterway 19, and make antetheca upper end 20a form give prominence to upward roughly circular-arc, so can in the broad range on whole of sink 1, spray washings equably.

Then, the water level in sink 1 is high water level P1 and the few situation of clothing class, the washings that above circulation waterway 19, suct and spray, and spray pressure owing to the water yield is more also high, so become linearly in the horizontal direction ejection easily.Here, if when the angle W that the relative horizontal direction of the roughly L font 20b of portion of guide wall portion 20 is made progress becomes big, owing to the arrival distance D of the washings that spray from ejiction opening 21 is elongated, the washings of ejiction opening 21 ejections on the roughly diagonal of sink 1 are located mutual collision above the distance water surface is suitable, as shown in Figure 5, the disperse amount F of washings outside sink 1 becomes many.

In the present embodiment, because roughly the 20b's of L font portion is below 15 degree to the relative horizontal direction of upper angle W, the washings of ejection form the Free Surface 22 of arcuation respectively, and colliding or before will colliding mutually, directly falling into respectively the water surface near the water surface, the disperse amount of washings outside sink 1 is illustrated in figure 5 as f and can suppresses dispersing of washing agent and foam.

Embodiment 3:

As shown in Figure 6 and Figure 7, circulation waterway 23 is enclosed in the guide wall portion 24, this guide wall portion 24 its rear wall upper end side extend roughly the 24b of L font portion and and antetheca upper end 24a between form ejiction opening 25.This roughly the 24b of L font portion with antetheca upper end 24a radially with radial direction on from above cover, make simultaneously the shape of expansion at end towards the center position of sink 1, the 24c of edge portion carries out chamfered edge.

Again, roughly above the 24b of L font portion rib 24d being set, chimeric with the bottom of fluid balancer 4.Here, establish roughly that the following top of the 24b of L font portion and the following alternate position spike of balancer 4 are Y, make Y 〉=0 and form the roughly 24b of L font portion in low position below fluid balancer 4.Other structures are identical with the foregoing description 1.

Action in said structure now is described, clothing class and washing agent are dropped in the sink 1, supply water to the water level of regulation, with the rotational synchronization of washing ripple dish 2, the pump chamber 14 that the washings of washing ripple dish 2 the insides form from the periphery at lining blade 13 when each counter-rotating through circulation waterways 23 from the antetheca upper end 24a of guide wall portion 24 and roughly the ejiction opening 25 between the 24b of L font portion in sink 1, spray.

At this moment, washings are from the antetheca upper end 24a of circulation waterway 23 through guide wall portion 24, immediately with the roughly following collision of the 24b of L font portion, simultaneously because the adhesiveness of discharge pressure and washings, led by the 24b of L font portion roughly in the same old way, be not subjected to the interference below the fluid balancer 4 yet, form terminal expansion roughly fan-shaped flowing water shape 26 and be ejected.

Yet, under the situation of the many clothing classes of many washing quantity, even when suppressing stirring of sink inside owing to quantity more, also can be on high position the washings of broadness be sprayed on whole that spreads all over to sink 1 from the Zhou Duan in the sink 1, can promote the dissolving of washing agent and improve washing (-)off properties that it is irregular to prevent that washings because of ejection from producing the washing that the part that the clothing class is spread across and the part that is not spread across produce simultaneously.And, promote the clothing class not had by water logging, can prevent that also the clothing class from flying out outside sink 1.

Also having, in the present embodiment, is that 1 situation is described to circulation waterway 23 just, yet, if a plurality of circulation waterways 23 are set, can further increase effect certainly in sink 1.

If adopt technical solution of the present invention 1 described invention, has sink, rotate the washing ripple dish that is provided in aforementioned sink bottom freely, the guide wall portion of the circulation waterway that formation supplies water above the sidewall of aforementioned sink from the pump chamber that forms in the inside of aforementioned washing ripple dish side, since aforementioned guide wall portion its rear wall upper end side extend roughly L font portion and and the antetheca upper end between form ejiction opening, so the major part that can make main flow from the water of the ejiction opening ejection of circulation waterway top is disperseed to both ends from the central portion of ejiction opening, also can be even the water yield of ejection is less in broadness, scope is sprayed washings equably widely, can reduce the irregular and raising washing (-)off properties of washing.

Again, if adopt technical scheme 2 described inventions, the relative horizontal direction of L font portion is inclined upwardly owing to make roughly, and roughly circular-arc antetheca upper end between form ejiction opening, even the water level of the washings in sink is low, under the few situation of the water yield of ejection, also can make arrive the center of sink from the washings of ejiction opening ejection near, and, owing to make the antetheca upper end form give prominence to upward roughly circular-arc, can spray washings equably in broad, broad range.Again, by limiting roughly being inclined upwardly of L font portion, ejiction opening is present in roughly on the diagonal in couples, and under the more situation of the water yield of ejection, can suppresses from the washings of a plurality of ejiction openings ejections because dispersing of the washing agent that produces of collision and foam mutually.

Again, if adopt the described invention of claim 3, since roughly L font portion with the antetheca upper end of guide wall portion radially with the both direction of radial direction on from above cover, make the shape of terminal expansion simultaneously towards the center position of sink, so no matter the clothing class of the many clothing time-like of many washing quantity etc. stir big or small degree, can spread all over scope widely when each counter-rotating of washing ripple dish from interior Monday of the end of sink and washings are sprayed on the irregular clothing class in the sink, can prevent washings because of ejection produce the part that the clothing class is spread across and the part that is not spread across produce wash irregular.

Claims

1. washing machine, have sink, rotate the washing ripple dish be provided in aforementioned sink bottom freely and constitute the guide wall portion of the circulation waterway that above the sidewall of described sink, supplies water from the pump chamber that forms in the inside of aforementioned washing ripple dish side, it is characterized in that, described guide wall portion its rear wall upper end side extend L font portion and and the antetheca upper end between form ejiction opening, it is outstanding upward circular-arc that described antetheca upper end is formed.

2. washing machine according to claim 1 is characterized in that, the relative horizontal direction of described L font portion is inclined upwardly, and described circular-arc antetheca upper end between form ejiction opening.

3. washing machine according to claim 1 and 2, it is characterized in that, described L font portion be made to the antetheca upper end of guide wall portion radially with the both direction of radial direction on from above cover and in the shape of terminal expansion on the center position of sink.