CN101851835B - Washings overturned washing method by impeller of washing machine - Google Patents
Washings overturned washing method by impeller of washing machine Download PDFInfo
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- CN101851835B CN101851835B CN200910136202.8A CN200910136202A CN101851835B CN 101851835 B CN101851835 B CN 101851835B CN 200910136202 A CN200910136202 A CN 200910136202A CN 101851835 B CN101851835 B CN 101851835B
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Abstract
The invention discloses a washings overturned washing method by an impeller of a washing machine. In the method, impeller vanes are arranged on the impeller in the radial direction, and an upward raised impeller neck is arranged on the position of a central axis. The washings overturned washing comprises a forward moving process and a backward moving process: when the washings are on the bottom of an inner barrel and move towards the center of the impeller, the washings moving mode is that washings make spiral ascending motion upwards along the impeller vanes while revolving around the central axis, and move upwards along the impeller vanes to the impeller neck in the center of the impeller; when the washings move to the top of the impeller neck, the washings move upwards due to inertia; after short upcast, the washings make external overturn revolution under the action of centrifugal force and bottom washings until the washings reach the position of inner barrel wall far away from the center of the impeller, and then the washings are pulled downwards by the washings on the bottom and the washings contacted with the impeller until the washings reach the bottom of the barrel; and while the washings move, the washings make overturned motion. The washing method has the characteristics of comprehensiveness, sufficiency, repetition and high efficiency.
Description
Technical field
The present invention relates to a kind of method of agitation wheel for washing machine washing clothes, especially a kind of agitation wheel for washing machine makes the method for washings upset washing.
Background technology
At present, the mode of washing of rotary drum washing machine is to rotate by impeller rotation or impeller and interior bucket the special current that form to stir the washings motion simultaneously, and in the process of stirring, it is applied to active force, make its pass through self friction, with the friction of impeller and inner barrel wall, repeatedly wash the purpose that reaches clean.This mode of washing is because clothing is overturn under the effect of current, so large to the demand of current, in whole washing process, water consumption is large.And this washing methods, in the situation that water is enough, require the rotating speed of impeller high, rotational angle is large, so just can form enough current and make clothes agitating.In this case, water consumption is large on the one hand, and dosage of scour is many, and wash time is long; The easy tangled up and knotted of clothing on the one hand in addition, and, due to current discontinuity in impact process, cause clothes washing inhomogeneous.
In order to improve clean result, need to, when reducing water consumption, increase the uniformity and the washing frequency of washing.
The Chinese patent that application number is 00121919.7 discloses a kind of method and apparatus for laundering of textile fabrics in the automatic washing machine including cleaning-drum and impeller.The method comprises: fabric is encased in washing cavities; To be enough to soak this fabric but not can impeller shaking peroid chien shih fabric break away from and impeller between the cleaning solution be frictionally engaged join in washing cavities; And impeller is swung, in order to drag the fabric be positioned at directly over impeller in the swing mode, wherein this fabric in washing cavities along inverse toroidal path upset, this inverse toroidal inverted pattern be by direct between the fabric above swinging impeller and being bearing in this impeller, contact formed.
The improvement of above-mentioned mode of washing, although improve, also exist the washing water consumption large, causes washing many with detergent amount, the defect that clothes washing is inhomogeneous, the time is long, wash degree is not high.
In view of this spy provides the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of and can save slurry, improves detersive efficiency, avoids washings to be wound around, comprehensively, fully, repeatedly, efficiently and the washing methods be not wound around.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technical scheme to be: a kind of agitation wheel for washing machine makes the method for washings upset washing, described impeller is provided with the impeller blade diametrically, be provided with the impeller neck raised up in the central shaft position, washings upset washing motion comprises forward and backward motion process: when washings in bottom of the barrel during to the impeller central motion, the washings motion mode is, the rotating forward movement made progress along the impeller blade in the time of around the central shaft revolution motion; Washings moves up to the impeller neck at impeller center along the impeller blade by this motion mode; When washings moves to impeller neck top, the washings motion mode is, washings moves upward along inertia, do outer upset revolution motion after of short duration upthrow under the effect of centrifugal force and bottom washings until arrive the position of inner barrel wall away from the impeller center, then the centripetal force that washings rotates generation at interior bucket reaches under the acting in conjunction of the downward pressure of pulling force, the upper strata washings downward at the washings of its lower floor, move to bottom of the barrel, this process motion mode is the backpitch descending motion; The alternating action of forward and backward moving periodicity on washings in, self does flip-flop movement washings.
When washings during in bottom of the barrel and to the impeller central motion, washings rotates under the water impact effect formed at impeller, frictional force, motive force and the impeller of impeller blade itself form three kinds of motion combinations under producing the centrifugal force acting in conjunction of washings in rotating, move up to moving of impeller neck along the impeller blade when being respectively revolution motion and revolution motion, these two kinds of motion modes are combined and are spiral escalation and, to the movement locus of site polymerization, the motion mode of washings self is from flip-flop movement simultaneously.
Move in the process at impeller neck top the thrust made progress that its washings that will move upward below being subject to gives and the percussion of current at washings; When washings moves to impeller neck top, it is because inertia continues to move upward, simultaneously its be subject to Action of Gravity Field and the following washings the fallen pulling force and the torsion that give of self and with impeller, rotate in the centrifugal force that produces, washings is done outside upset revolution motion until arrive the position of bottom of the barrel away from the impeller center after of short duration upthrow, simultaneously, washings is done from flip-flop movement.
Described washtub polycrystalline substance for being provided with the backwater gathering sill with the circumference connecting portion of washtub wall at the bottom of washtub.
The horizontal plane of the described backwater gathering sill degree of depth at the bottom of lower than washtub, the concave surface radian of described backwater gathering sill is between 90 °-160 °.
The degree of depth of described backwater gathering sill is at 5-15mm, and width is 15mm-20mm.
The minimum air line distance of lighting the concave surface top of close washtub center one side of described backwater gathering sill equals its minimum air line distance of lighting near washtub wall one side top.
Described washtub polycrystalline substance can sequentially be arranged in for more than one backwater gathering sill the edge of washtub.
The narrowest width that interval minimum between described more than one backwater gathering sill is impeller blade at the bottom of washtub.
During outside when washings at the bottom of the barrel impeller, it is stressed is: make the stiction from impeller of washings along with the impeller motion, the active force that comes from washings above impeller that it is moved upward, make the washings oriented bucket end and barrel rim along the active force from the current between impeller and interior bucket that overflow that stirred by impeller moved, stop the washings motion from the frictional force between washings and interior bucket, the washings of washings self and vertical direction thereof close Action of Gravity Field, the washings movement locus is, washings moves upward along impeller when rotating with impeller.
When washings is between two impeller blades, its stressedly be: the frictional force that the washings that vertical height is lower gives, the centrifugal force that impeller forms in the process of rotating, the thrust of impeller blade to washings, impeller gives the stiction of washings in the process started, the active force of the current that form under impeller promotes, the torsion that the washings that vertical height is higher gives and resistance, the acting in conjunction power of the washings that perpendicularity is higher than it and self gravitation thereof, in this process, impeller ceaselessly stops, start, the stiction of impeller is ceaselessly to the washings effect, make it continue to move upward.At this motion process, washings is done from flip-flop movement simultaneously.
When washings, when the impeller blade is up creeped by export-oriented center, it is stressed is: in uphill process with frictional force, washings self and the vertical height of washings on every side higher than it and closing of the pressing washings thereon torsion that stiction in starting of gravity, the washings of face gives on the lower the thrust made progress, impeller, the active force of current, washings that vertical height is higher give and resistance, along with impeller rotate thrust that the centrifugal force that produces and impeller blade give with joint efforts; This process, washings is done from flip-flop movement simultaneously.
When washings, when the impeller blade moves to impeller neck top, it is stressed is: the thrust made progress that impeller gives the frictional force of washings, following washings, self gravity and the thrust of impeller, with the centrifugal force of impeller blade rotation and making a concerted effort of water flow impact pressure.
After washings falls, along bottom of the barrel chamfering place, toward falling, washings is subject to the trend that vertical height makes it have trend Nei Tong center to move lower than the pulling force of its washings, vertical height higher than the acting in conjunction power of centripetal force in pressure, self gravitation and the interior bucket rotation process of its washings.
The present invention also has another special circumstances: in the situation that a lot of washings of the water yield seldom, now the active force between the active force between washings, washings and impeller is much smaller than the active force of water, in interior bucket, buoyancy of water is enough to washings is held up, washings is done stirring from surrounding to center at the water surface, does under water the motion of stirring of mind-set surrounding therefrom.This direction of motion i.e. the mass motion direction of the current of washing methods for this reason.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
Mode of washing of the present invention, on the basis of the impact forces of as far as possible utilizing water, rely on the interaction force of washings self, the active force of impeller and washings, washings and the bucket active force of wall and the centrifugal force of impeller rotary action, maximized these power of utilizing not only make washings can not be intertwined in washing process, and comprehensively, fully, repeatedly, washed efficiently, do not need the high water level washing, saved a large amount of water resources simultaneously; In addition, this washing process, in whole motion, stressed and motion is carried out at each position of washings, and stressed frequency is higher and more even.In a washing process of washings upset, each active force is periodically acted on, and abrasive forces is little, and good to the removal effect of dirt, has improved the efficiency of washing, has avoided washings to be intertwined it is caused to distortion.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The accompanying drawing explanation
Fig. 1 is our bright washing of drum type washing machine clothing flip-flop movement track schematic diagram;
Fig. 2 is the impeller structure schematic diagram of realizing this washing methods of the present invention;
Fig. 3 is impeller blade bottom profile curve synoptic diagram of the present invention;
When Fig. 4 is impeller rotation of the present invention, the impeller blade drives water movement direction schematic diagram;
Fig. 5 is the elementary contour curve synoptic diagram of impeller base construction of the present invention and neck;
Fig. 6 is the stressed schematic diagram of washing methods washings of the present invention in bottom of the barrel impeller outside;
Fig. 7 be washing methods washings of the present invention between two impeller blades when zone stressed schematic diagram;
Fig. 8 is washing methods washings of the present invention stressed schematic diagram when the impeller blade up moves to center;
Fig. 9 is washing methods washings of the present invention stressed schematic diagram when the impeller blade moves to impeller neck top;
Figure 10 is washing methods washings of the present invention stressed schematic diagram when bottom of the barrel chamfering place down moves;
Figure 11 is that in washing machine of the present invention, buoyancy of water is sufficient when holding up washings, the flip-flop movement track schematic diagram of washings.
Figure 12 is clothing running schematic diagram of the present invention;
Figure 13 is that backwater gathering sill of the present invention is implemented illustration;
Figure 14 is backwater gathering sill schematic diagram of the present invention;
The specific embodiment
Impeller structure of the present invention, can make washings stir up and down washing in water, mode of washing is to utilize impeller in rotating process frequently, himself combination to the effect of the ceaselessly friction of washings and the impulsive force of stirring action power and water, formation can apply the special mode of washing that suitable mechanicals efforts reaches clean result to washings.
As shown in Figure 2, in washing methods of the present invention, impeller 2 comprises that impeller pedestal 20, impeller pedestal 20 centres are the impeller neck 4 of conic convex, reach a plurality of impeller blades 3 that upwards are provided with in impeller pedestal 20 footpaths, and by impeller pedestal 20 edges, the gradient smoothing rising to the impeller center is connected with impeller neck 4 impeller blade 3.The quantity of medium wave impeller blade of the present invention can be three groups, four groups, five groups etc., but the impeller blade 3 in the present invention must have the gradient 5 raise to the impeller center by the impeller edge.
In washing methods of the present invention, washings upset washing motion comprises forward and backward motion process: during when washings bucket 1 bottom and to impeller 2 central motion, the washings motion mode is, the rotating forward movement made progress along the impeller blade in the time of around the central shaft revolution motion; Washings moves up to the impeller neck 4 at impeller center along impeller blade 3 by this motion mode; When washings moves to impeller neck 4 top, the washings motion mode is, washings moves upward along inertia, do outer upset revolution motion after of short duration upthrow under the effect of centrifugal force and bottom washings until in arriving barrel 1 wall away from the position at impeller center, then the centripetal force that washings rotates generation at interior bucket reaches under the acting in conjunction of the downward pulling force at the washings of its lower floor, move to interior bucket 1 bottom, this process motion mode is the backpitch descending motion.Its movement locus as shown in Figure 1, the alternating action of forward and backward moving periodicity on washings in, self does flip-flop movement washings.In whole motion, stressed and motion is carried out at each position of washings, and stressed not quite still frequency is higher and more even.In washing process, periodic being acted on like this, abrasive forces is little, and good to the removal effect of dirt, and above-mentioned motion is the motion mode that the size of washings load capacity and water consumption presents when reaching best.
Particularly, above-mentioned washings upset front half period of motion of washing is: when washings during interior barrel of 1 bottom and away from impeller 2 central motion, washings rotates under the water impact effect formed at impeller 2, the frictional force that impeller blade 3 is own, during rotating, motive force and impeller 2 produce forming three kinds of motion combinations under the centrifugal force acting in conjunction of washings, move up to moving of impeller neck 4 along impeller blade 3 when being respectively revolution motion and revolution motion, these two kinds of motion modes are combined and are spiral escalation and to the movement locus of site polymerization, the motion mode of washings self is from flip-flop movement simultaneously.
Rear half period of motion is: move in the process at impeller neck 4 tops the thrust made progress that its washings that will move upward below being subject to gives and the percussion of current at washings; When washings moves to impeller neck 4 top, it is because inertia continues to move upward, simultaneously it is subject to self Action of Gravity Field and the centrifugal force that produces in rotating of the pulling force that gives of the following washings fallen and torsion and impeller, washings do outside upset revolution motion after of short duration upthrow until in arriving barrel 1 bottom away from the position at impeller center, this process motion mode is the backpitch descending motion, simultaneously, washings is done from flip-flop movement.
Mode of washing of the present invention does not need high water level, as long as slurry can soak washings, also can realize high-efficient washing while even without enough water, washings being floated, washings is stressed different at the diverse location place of the interior bucket end and impeller, and its concrete analysis is as follows.
When A, impeller 2 outside when washings in interior bucket 1 bottom, washings is subject to make stiction from the impeller 2 Δ F of washings along with the impeller motion
static friction, the active force Δ F that comes from the washings on impeller 2 that washings is moved upward
washings, make the oriented bottom of the barrel of washings and the interior barrel rim active force Δ F from the current between impeller 2 and interior bucket 1 that overflow that stirred by impeller 2 along movement tendency
water, stop the washings movement tendency from the frictional force Δ F between washings and interior bucket 1
frictional force, the active force that closes gravity G of washings self and vertical washings on it.Buoyancy Δ F
floatingminimum to the washings motion effects herein, can ignore, as shown in Figure 6, impeller clockwise rotates, and washings institute is stressed is:
Δ F
close=Δ F
frictional force+ Δ F
static friction+ Δ F
water+ Δ F
washings+ G
Now the movement locus of washings is, washings moves upward along impeller 2 when rotating with impeller 2.
B, when washings when zone between two impeller blades 3, institute is stressed is for it:
Δ F
close=Δ F
friction+ Δ F
from+ Δ F
push away+ Δ F
static friction+ Δ F
water+ Δ F
washings+ G+ Δ F
floating
Δ F
frictional forcefor the frictional force that the lower washings of vertical height gives, Δ F
fromfor the centrifugal force that impeller 2 forms in the process of rotating, Δ F
push awayfor the thrust of 3 pairs of washings of impeller blade, Δ F
static frictiongive the stiction of washings, Δ F in the process started for impeller 2
waterfor the active force of the current of formation under impeller 2 promotions, Δ F
washingsfor torsion and the resistance that the higher washings of vertical height gives, the gravity that closes that G is washings that vertical height is higher than it and self.In washing process, impeller 2 is ceaselessly stopping and starting, and from the stiction of impeller 2, ceaselessly acts on to washings, makes it continue to move upward, and as shown in Figure 7, this state is that impeller clockwise rotates to stressing conditions.
C, when washings when impeller blade 3 is up moved by export-oriented center, it is stressed is:
Δ F
close=Δ F
frictional force+ Δ F
static friction+ Δ F
water+ Δ F
washings+ G+ Δ F
from+ Δ F
push away+ Δ F
the impeller leaf
Δ F
frictional forcefor in uphill process from the frictional force of washings on every side, G for himself and vertical height high than it and pressure washings thereon close gravity, the thrust Δ F made progress that in this process, the washings of face gives on the lower
push awaystiction Δ F with impeller 2 in starting
static friction, the active force Δ F of current
water, Δ F
washingsfor torsion and the resistance that the higher washings of vertical height gives, Δ F
fromfor rotate the centrifugal force of generation, Δ F along with impeller
the impeller leaffor the thrust that the impeller blade gives, be subject to the effect of these power that washings is up moved, as shown in Figure 8, this state is that impeller rotates counterclockwise to stressing conditions.
D, when washings along impeller blade 3 to 4 tops whens motion of impeller neck, it is stressed is:
Δ F
close=Δ F
frictional force+ G+ Δ F
push away+ Δ F
from+ Δ F
washings+ Δ F
water
Frictional force Δ F herein
frictional forcefor the frictional force that impeller 2 is given washings, because washings will break away from impeller 2, frictional force is very little, the thrust Δ F made progress that washings is given by following washings mainly
washings, rotate the Δ F produced with impeller
fromthe thrust Δ F given with the impeller blade
push away, Δ F
waterfor the impulsive force of current, washings keeps this movement tendency, until break away from impeller 2; When moving to top, washings breaks away from impeller, and due to the Action of Gravity Field of self, washings is done of short duration similar projectile motion; Then move to the inner barrel wall place away from the impeller center under the effect of washings and the centrifugal action along with the rotation generation of ripple road below, as shown in Figure 9, this state is that impeller rotates counterclockwise to stressing conditions.
E, after washings falls, it down moves along interior bucket 1 bottom chamfer place, washings is subject to the pulling force Δ F of vertical height lower than its washings
draw, vertical height is higher than the pressure Δ F of its washings
presswith the centripetal force Δ F in interior bucket rotation process
to, washings is subject to the Δ F that makes a concerted effort under oblique herein
closeeffect, until interior bucket 1 bottom, as shown in figure 10, this state is that impeller rotates counterclockwise to stressing conditions.
By the description of five processes of above-mentioned A-E, can draw a complete movement locus of washings, as shown in Figure 1.
As shown in Figure 5, impeller pedestal 20 and neck 4 schematic diagrames for realizing above-mentioned mode of washing.In washing process, in order to make flow intensity under impeller blade 3 effect meet the requirement of washings flip-flop movement, make its potential energy be converted into to greatest extent kinetic energy.The cambered surface L that needs impeller pedestal 20 circumferential sections
1the angle [alpha] formed with horizontal plane is controlled within 15 °, so just can make between two impeller blades 3 retaining abundant, and it is enough large that impeller blade 3 stirs current, and the flow of water of formation also can be larger, and the kinetic energy of conversion could enough provide the flip-flop movement of washings.
In addition, at the domatic L of impeller center impeller neck 4
2within being controlled at 30 ° ± 5 ° scopes with the angle beta of vertical direction, the frictional force that washings is subject in the rising switching process like this and the impulsive force of current and suitable from the amount of force of impeller blade 3, washings is not easy to be intertwined, and washings can carry out omnibearing flip-flop movement.
In the water impact washings, 2 pairs of washings of impeller power of also having an effect, assist current to complete the washing to washings.The acting in conjunction of these power forms a kind of washings that makes that is different from common current and do the motion of scroll-up/down upset in water: in around impeller 2 centers revolution, self be rotated and rise and reach around the closing motion (consulting Fig. 1) of interior bucket 1 bottom under the effect of washings along the washings top layer after peaking along impeller.Washings is repeating such periodic motion in washing process.This mode of washing has avoided winding, the part of clothing to wash totally, wash the defects such as inhomogeneous, has carried out omnibearing even washing.
The structure of above-mentioned impeller pedestal 20 guarantees most basic power, and 3 pairs of water (flow) directions of the impeller blade on it are controlled.As shown in Figure 4, current under the effect of impeller blade 3 direction of motion along arrow direction in figure, drive washings also moves upward along this direction simultaneously, guarantee the direction of current, must guarantee that impeller blade 3 bottom wheel profiles 6 have certain radian (consulting Fig. 3), and there is certain radian (consulting Fig. 5) impeller neck 4 and impeller pedestal 20 junctions, bottom 7 of impeller pedestal 20 intermediate projections, so arranges and can guarantee that current make it along impeller blade 3, just in time climb up and be not easy winding to the impact of washings.
Control to water (flow) direction, impeller blade 3 bottom wheel profiles are one of key factors, the important factor of another one is the angle of inclination of impeller blade 3 sidewalls, by Fig. 4, found out for guaranteeing the maximized reasonable utilization of flow intensity, near the impeller blade 3 sidewall slope angle minimums of impeller 2 edges and center, the sidewall slope angle maximum of impeller blade 3 interludes.
Also have an important factor be when clothing when sliding into the B point under the CB alignment.Clothing produces and piles up at the washtub feather edge, and current can't flow to the clothing bottom.And the pressure of clothing top current is unidirectional, clothing is pushed, clothing pressing can't be moved in the washtub corner, reduced the toggle frequency of clothing in bucket.
At the bottom of common washtub, bucket wall and bucket junction, the end are right angle substantially, and the height of the height fundamental sum washing wave wheel at the bucket end is identical, and washings, except the gravity G and the holding power F at the bucket end that are subject to mutual balance, only is subject to the centripetal force effect of the horizontal direction of bucket.When washings arrive bucket in the time of the end due to the centripetal force that only is subject to horizontal direction, there is no to make the effect of the power of its motion at vertical direction.
Increase slideway and circular arc at the bottom of this patent washtub, and its height is lower than the height of washing wave wheel.As shown in figure 13:
The clothing current can flow to easily the washtub marginal portion at the bottom of washtub, by originally being deposited in the thing that bottom of the barrel divides, hold up, make its downstream stream come back to washtub central authorities and stir and rise with current.
As shown in figure 14, in the time of at the bottom of falling from peak when washings barrel, around the bucket central shaft, rotate, be subject to centripetal force effect F=mv^2/r when encountering barrel wall after, the frictional force F be subject to barrel
rubeffect, rotating speed reduces, and centripetal force diminishes.The place motion that washings is little towards radius, slide into the B point gradually.Washings above in this process is along with under also, and due to the effect of gravity, washings slides into the process of B from A, and certain speed is arranged.Washings is due to inertia, then rises to the position near C.Now, washings is along with the washings at washing wave wheel edge participates in the process of rising.The height of groove is the most suitable with 5-15mm herein, and width is most suitable with 15mm-2mm.Groove part will be lower than the surperficial lowest part height of washing wave wheel simultaneously.Only in this way the effect of groove just can embody.
In the present invention, the washtub bottom structure can also be made into more than one backwater gathering sill and sequentially arranges, and the benefit of design is to make the washtub bottom margin to form corrugated relief fabric like this.And make water produce impulse force upwards in washtub edge circulation, clothing is taken away to the washtub bottom.Make in its cyclic process that comes back to the washtub middle part.
This patent washtub bottom structure strengthened washings from top to bottom stir effect, make the washings descended from the washing wave wheel top be easy to stir washing wave wheel.Participate in next shuttling movement.
Impeller in the present invention is the effect that impeller blade 3 plays the upset clothing with the difference of common impeller, rather than indirectly mainly by current, clothing is overturn, but impeller blade 3 is increased with to the washings direct effect iff simple, larger to the wearing and tearing of washings, invalid resistance to current also can be larger, and in this situation, the contact area of washings and impeller blade 3 is less, detersive efficiency is not high.To have increased impeller blade 3 be the gradient 5 (as Fig. 2) above the impeller blade with the washings contact portion to impeller of the present invention for this reason, vertical plane is changed to inclined plane, to the resistance of current is corresponding, reduce, be that the effect of the current scour amount of overcoming is to washings, frictional force corresponding die down of while washing wave wheel to washings, as shown in Figure 2, the impeller blade is changing to and is being obliquely installed near center.
In washing process, the washings of impeller 2 tops rises to highest point at rotation process, gravity, centrifugal force and below fall back to outermost under the acting in conjunction power of frictional force of washings interior bucket bottom, then continue impeller, current, inner barrel wall, above the washings effect under upset wash for the second time above rising to impeller 2.In the whole cycle, the radius of impeller 2 is controlled within limits, and the ratio of its radius and interior bucket 1 radius is between 0.65-0.75.
As shown in figure 11, the present invention also has another special circumstances: in the situation that a lot of washings of the water yield seldom, now the active force between the active force between washings, washings and impeller is much smaller than the active force of water, in interior bucket, buoyancy of water is enough to washings is held up, washings is done stirring from surrounding to center at the water surface, does under water the motion of stirring of mind-set surrounding therefrom.This direction of motion i.e. the mass motion direction of the current of washing methods for this reason.
Mode of washing of the present invention, on the basis of the impact forces of as far as possible utilizing water, utilize interaction force, the impeller of washings self to follow the active force of bucket wall and the centrifugal force of impeller rotary action to active force, the washings of washings, make washings carry out regular upset washing, in washing process, can not be intertwined, and comprehensively, fully, repeatedly, washed efficiently, do not need the high water level washing simultaneously, also saved a large amount of water resources; In addition, in this washing process, stressed and motion is carried out at each position of washings, and stressed frequency is higher and more even, washings is also played to the effect of protection; Moreover, in a washing process of washings upset, each active force is periodically acted on, abrasive forces is little, and good to the removal effect of dirt, has improved the efficiency of washing, has avoided washings to be intertwined it is caused to distortion.
Claims (15)
1. an agitation wheel for washing machine makes the method for washings upset washing, described impeller is provided with the impeller blade diametrically, be provided with the impeller neck raised up in the central shaft position, it is characterized in that: described impeller comprises that impeller pedestal, impeller pedestal centre are the impeller neck of conic convex, reach a plurality of impeller blades that upwards are provided with in impeller pedestal footpath, the impeller blade is raise and is connected with the impeller neck along the gradient smoothing to the impeller center by the impeller susceptor edge, and the impeller blade has the gradient raise to the impeller center by the impeller edge; The angle that the cambered surface of impeller pedestal circumferential section and horizontal plane form is controlled within 15 °, within the angle of the domatic and vertical direction of impeller center impeller neck is controlled at 30 ° ± 5 ° scopes; Impeller blade bottom wheel profile has certain radian, and there is certain radian the impeller neck of impeller pedestal intermediate projections and impeller base bottom junction, near the impeller blade sidewall angle of inclination minimum of impeller edge and center, the sidewall slope angle maximum of impeller blade interlude;
Washings upset washing motion comprises forward and backward motion process: when washings, in bottom of the barrel during to the impeller central motion, the washings motion mode is, the rotating forward movement made progress along the impeller blade in the time of around the central shaft revolution motion; Washings moves up to the impeller neck at impeller center along the impeller blade by this motion mode; When washings moves to impeller neck top, the washings motion mode is, washings moves upward along inertia, do outer upset revolution motion after of short duration upthrow under the effect of centrifugal force and bottom washings until arrive the position of inner barrel wall away from the impeller center, then the centripetal force that washings rotates generation at interior bucket reaches under the acting in conjunction of the downward pressure of pulling force, the upper strata washings downward at the washings of its lower floor, move to bottom of the barrel, this process motion mode is the backpitch descending motion; The alternating action of forward and backward moving periodicity on washings in, self does flip-flop movement washings.
2. agitation wheel for washing machine according to claim 1 makes the method for washings upset washing, it is characterized in that: when washings during in bottom of the barrel and to the impeller central motion, washings rotates under the water impact effect formed at impeller, the frictional force of impeller blade itself, during rotating, motive force and impeller produce forming three kinds of motion combinations under the centrifugal force acting in conjunction of washings, move up to moving of impeller neck along the impeller blade when being respectively revolution motion and revolution motion, these two kinds of motion modes are combined and are spiral escalation and to the movement locus of site polymerization, the motion mode of washings self is from flip-flop movement simultaneously.
3. agitation wheel for washing machine according to claim 1 makes the method for washings upset washing, it is characterized in that: move in the process at impeller neck top the thrust made progress that its washings that will move upward below being subject to gives and the percussion of current at washings; When washings moves to impeller neck top, it is because inertia continues to move upward, simultaneously its be subject to Action of Gravity Field and the following washings the fallen pulling force and the torsion that give of self and with impeller, rotate in the centrifugal force that produces, washings is done outside upset revolution motion until arrive the position of bottom of the barrel away from the impeller center after of short duration upthrow, simultaneously, washings is done from flip-flop movement.
4. agitation wheel for washing machine according to claim 1 makes the method for washings upset washing, it is characterized in that: during outside when washings at the bottom of the barrel impeller, it is stressed is: make the stiction from impeller of washings along with the impeller motion, the active force that comes from washings above impeller that it is moved upward, make the washings oriented bucket end and barrel rim along the active force from the current between impeller and interior bucket that overflow that stirred by impeller moved, stop the washings motion from the frictional force between washings and interior bucket, the washings of washings self and vertical direction thereof close Action of Gravity Field, the washings movement locus is, when rotating with impeller, along impeller, move upward.
5. agitation wheel for washing machine according to claim 4 makes the method for washings upset washing, it is characterized in that: during outside when washings at the bottom of the barrel impeller, owing at the bottom of washtub, with the circumference connecting portion of washtub wall, being provided with the backwater gathering sill, hold up clothing when current produce corresponding active force by the backwater gathering sill during washing, clothing is taken back on impeller.
6. agitation wheel for washing machine according to claim 5 makes the method for washings upset washing, it is characterized in that: the horizontal plane of the described backwater gathering sill degree of depth at the bottom of lower than washtub, the concave surface radian of described backwater gathering sill is between 90 °-160 °.
7. agitation wheel for washing machine according to claim 6 makes the method for washings upset washing, and it is characterized in that: the degree of depth of described backwater gathering sill is at 5-15mm, and width is 15mm-0.2mm.
8. agitation wheel for washing machine according to claim 7 makes the method for washings upset washing, it is characterized in that: described backwater gathering sill minimum point to the air line distance at the concave surface top near washtub center one side equals its minimum lighting to the air line distance near washtub wall one side top.
9. agitation wheel for washing machine according to claim 5 makes the method for washings upset washing, and it is characterized in that: described washtub polycrystalline substance can sequentially be arranged in for more than one backwater gathering sill the edge of washtub.
10. agitation wheel for washing machine according to claim 5 makes the method for washings upset washing, it is characterized in that: the minimum the narrowest width for impeller blade at the bottom of washtub in the interval between described more than one backwater gathering sill.
11. agitation wheel for washing machine according to claim 1 makes the method for washings upset washing, it is characterized in that: when washings is between two impeller blades, its stressedly be: the frictional force that the washings that vertical height is lower gives, the centrifugal force that impeller forms in the process of rotating, the thrust of impeller blade to washings, impeller gives the stiction of washings in the process started, the active force of the current that form under impeller promotes, the torsion that the washings that vertical height is higher gives and resistance, the acting in conjunction power of the washings that perpendicularity is higher than it and self gravitation thereof, in this process, impeller ceaselessly stops, start, the stiction of impeller is ceaselessly to the washings effect, make it continue to move upward, at this motion process, washings is done from flip-flop movement simultaneously.
12. agitation wheel for washing machine according to claim 1 makes the method for washings upset washing, it is characterized in that: when washings when the impeller blade is up creeped by export-oriented center, it is stressed is: in uphill process with the frictional force of washings on every side, washings self and vertical height high than it and washings thereon of pressure close gravity, the thrust made progress that the washings of face gives on the lower, the stiction of impeller in starting, the active force of current, the torsion that the washings that vertical height is higher gives and resistance, making a concerted effort of the thrust that the centrifugal force rotate produced along with impeller and impeller blade give, this process, washings is done from flip-flop movement simultaneously.
13. agitation wheel for washing machine according to claim 1 makes the method for washings upset washing, it is characterized in that: when washings, when the impeller blade moves to impeller neck top, it is stressed is: the thrust made progress that impeller gives the frictional force of washings, following washings, the gravity of self and making a concerted effort of the thrust of impeller blade, the centrifugal force rotated with impeller and water flow impact pressure.
14. agitation wheel for washing machine according to claim 1 makes the method for washings upset washing, it is characterized in that: will fall interior bucket at the inner barrel wall place when washings during the end, it is along bottom of the barrel chamfering place toward falling, and washings is subject to vertical height has along inside the moving of moving of bucket center of inner barrel wall chamfering it lower than the pulling force of its washings, vertical height higher than the acting in conjunction power of centripetal force in the pressure of its washings and interior bucket rotation process.
15. make the method for washings upset washing according to the described agitation wheel for washing machine of claim 1-8 any one, it is characterized in that: washings is stressed different at the diverse location place of the interior bucket end and impeller.
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| CN102146626B (en) * | 2010-12-23 | 2016-04-27 | 海尔集团公司 | A kind of even power washing methods and this even dynamical washing machine |
| CN102154800B (en) * | 2010-12-23 | 2015-12-02 | 海尔集团公司 | Even dynamic upset washing methods and even dynamic washing machine |
| JP5720970B2 (en) * | 2010-12-23 | 2015-05-20 | 海爾集団公司 | Equal power washing machine and washing method thereof |
| CN102140748B (en) * | 2010-12-23 | 2016-04-27 | 海尔集团公司 | There is washing machine and the mode of washing of the even dynamic upset of clothing |
| CN102191652B (en) * | 2010-12-23 | 2016-01-20 | 海尔集团公司 | Full-automatic impeller type washing machine |
| CN102140747B (en) * | 2010-12-23 | 2016-01-27 | 海尔集团公司 | A kind of even power washing methods and washing machine |
| US10100452B2 (en) | 2015-10-16 | 2018-10-16 | Whirlpool Corporation | Impeller having a sweeper |
| CN110031335A (en) * | 2018-01-12 | 2019-07-19 | 中国制浆造纸研究院有限公司 | A kind of rotor for dispersibility analyzer |
| CN109722853B (en) * | 2019-03-13 | 2020-09-01 | 珠海格力电器股份有限公司 | Washing machine and control method thereof |
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Effective date of registration: 20160718 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee before: haier group corporation Patentee before: Qingdao Haier Washing Machine Co., Ltd. |