CN102191652A - Full-automatic impeller type washing machine - Google Patents
Full-automatic impeller type washing machine Download PDFInfo
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- CN102191652A CN102191652A CN2011100523176A CN201110052317A CN102191652A CN 102191652 A CN102191652 A CN 102191652A CN 2011100523176 A CN2011100523176 A CN 2011100523176A CN 201110052317 A CN201110052317 A CN 201110052317A CN 102191652 A CN102191652 A CN 102191652A
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Abstract
The invention discloses a full-automatic impeller type washing machine. The full-automatic impeller type washing machine comprises an outer barrel, an inner barrel which is arranged in the outer barrel and used for accommodating clothes, a rotary impeller, a hollow floating drum arranged below the inner barrel and a driving device for controlling rotation of the inner barrel and the impeller; the inner barrel and the impeller of the washing machine are in accordance with the following condition: during washing, water added into the washing machine should just immerse the clothes, and the clothes must be contacted with the upper surface of the impeller while floating; when the load of the washing machine is increased by 1 kilogram, a mixed height difference h1 between the clothes to be added and the water to be added is in accordance with the following formula, so the clothes is contacted with the impeller and cannot be floated totally, wherein D is the diameter of the inner barrel, h is the height of the impeller, V1 is the volume of the impeller, and K is the optimal load of the clothes accommodated between the impeller and the inner barrel within the range of the height of the impeller; while rotating with the impeller, the clothes moves to the center of the impeller along the impeller and reaches the peak, rolls towards the periphery and falls to the bottom of the inner barrel along the wall of the inner barrel in a uniform shaking and outward rolling manner, and moves and rolls periodically towards the center of the impeller.
Description
Technical field
The present invention relates to a kind of washing machine, especially a kind of full-automatic impeller type washing machine that changes clothes washing upset path.
Background technology
At present, the mode of washing of rotary drum washing machine is to rotate the special current that form simultaneously by impeller rotation or impeller and interior bucket to stir the washings motion, and in the process of stirring, it is applied active force, make its pass through self friction, with the friction of impeller and inner barrel wall, wash the purpose that reaches clean repeatedly.Impeller in the rotary drum washing machine, shape is ever-changing, as dish-shaped impeller, bar type impeller, bowl formula impeller etc., but no matter how the shape of impeller changes, its final purpose all is in order to improve wash degree and to reduce the winding of clothing without exception, and high wash degree and low winding rate are conflicting, wash degree has improved often, the severity of twining, otherwise be exactly to twine for a short time, wash degree is also little.Existing rotary drum washing machine, the washing water consumption is big, wash time is long, wash many with detergent amount, the easy tangled up and knotted of clothing, cause wash inhomogeneous, yielding; Perhaps, washings washs by the water flow impact pressure that interior bucket rotation produces centrifugal force formation, and washings is to make the as a whole process of finishing washing usually.Though current also play the effect of washing away, not enough to open washings is loose, but make one of washings formation, integral body is intertwined.
In order to improve wash degree, the impeller rotational angle is big and rotating speed is fast when just needing washing, be subjected to the current of centrifugal action to drive moving of washings high speed along a direction, but finally can cause washings to be intertwined, washings is damaged by tearing, especially high-grade clothing, easier to be impaired; And, depend merely on the effect of current in the washing process, forms of motion is single, fixing, and the upset efficient of washings in interior bucket is low, need wash the clean result that just can finish whole washings more frequently.
In addition, when this type of washing machine running, impeller rotation or swing, form the current of annular, because mobile depend on fluid motion or the fluid dynamic force of clothing in washtub, therefore, in order to realize required annular inverted pattern, must make equally that the automatic washing machine with bottom impeller is full of cleaning solution, the height that wherein joins the cleaning solution in the washtub must be enough to complete submergence and be encased in the fabric that goes in the cleaning-drum, will need to consume a large amount of water like this, in addition, because the water yield is big, in order to reach enough detergent concentrations, just must strengthen detergent amount, washing cost height also causes certain pollution to water resource.
In view of this special proposition 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 clothing that makes to clean the full-automatic impeller type washing machine of ratio, the uniformity with even flowing mode upset to improve clothing.
For solving the problems of the technologies described above, the present invention adopts the basic design of technical scheme to be: washing machine inner tub and impeller satisfy: the water yield that washing machine adds during washing is soaked clothing and clothing come-up and can not be broken away from and the contacting of impeller upper surface, and the clothing of the required increase of the every increase of washing machine 1kg amount load mixes difference in height h with water
1Satisfy: h
1=(π D
2H-4V
1)/(K π D
2), so that contacting not exclusively with impeller, clothing floats, and wherein, D is interior bucket diameter, and h is the impeller height, V
1Be the impeller volume, K is an optimum load amount of placing clothing in the scope of impeller height between impeller and the interior bucket, clothing is when rotating with impeller, along impeller to the impeller center move rise to the summit after, the mode of turning up with even shake is the bucket end, the cycle flip-flop movement that moves to the impeller center again in periphery is rolled and dropped to along inner barrel wall.Be specially, rotate with the swing of impeller in the clothing switching process, center clothing evenly shake is turned to time outer ring, is subjected to the influence of impeller and clothing, water level, is turned to outer ring once more by the shake of inferior outer ring again, be turned to inner barrel wall always after, at the bottom of sliding into barrel along inner barrel wall.
Washing clothes of the present invention is successively evenly shaken upset by the center to the outer ring, wherein, evenly be meant and be evenly distributed, even distribution when being included in clothes agitating in the washing process, be specially, clothing with impeller rotation process and clothing with the current switching process in, with certain frequency shake upset, that the shake upset comprises is loosening between clothing and the clothing, break away from the upset and the clothing self that twine trembles diffusing upset; The frequency of shake is relevant with the dead time between motor speed, rotating time and the rotating.
Mode of washing of the present invention does not need high water level, as long as slurry can soak clothing, when floating clothing, also can realize in enough water the high efficiency washing, generally according to the load capacity of clothing input, the water yield of interpolation satisfies according to laundry load: be higher than agitation wheel for washing machine centre-height 80mm-300mm.
The water yield of adding when hanging down the load clothing is for surpassing agitation wheel for washing machine centre-height 80-150mm, in the water yield of adding during the load clothing for surpassing agitation wheel for washing machine centre-height 150mm-220mm, the water yield of adding during the heavy duty clothing is for surpassing agitation wheel for washing machine centre-height 220-300mm.
Bucket is rolled by the stainless steel tablet and forms in described, in the friction area of bucket perisporium when being provided with the inside die mould of multi-turn ring-type and falling to increase clothing, being provided with ring-type uniform outside flange and circular hole or the width of diameter between 1mm-5mm between the twice annulars die mould is 1mm-3mm, and length-width ratio is the slotted hole of 2-3.This pressure-type structure has also reduced the time that clothing drops downwards when increasing friction area, reduce the clothing possibility that perisporium is piled up at the bottom of bucket, better realizes the complete upset of clothing.
An interior bucket end perisporium circumference is evenly distributed with and can stops that thereby clothing rotates 3-12 the projection that changes the clothing moving direction fully with impeller, the diameter ratio of impeller diameter and interior bucket is 0.6-0.8, because impeller rotates, clothing has the turnaround speed of rotating with impeller equally, can produce centripetal force in order better to reduce clothing again with the swing of impeller, general projection evenly is provided with the 8-12 piece, can make clothing obtain the angular speed that centripetal force can reduce the clothing swing again better; The diameter ratio of impeller diameter and interior bucket be 0.6-0.8 in order to make clothing fall in interior bucket territory, base area, slow down the speed of rotating with impeller, increase clothing landing and the buffering that enters impeller simultaneously, make that the clothing upset cycle can be continuous.
Described impeller is fixed on the impeller axle, the impeller axle other end passes interior bucket, floating drum and drive unit and is in transmission connection, the impeller axle is provided with a clutch external tooth, the floating drum below is provided with the clutch internal tooth with the engagement of clutch external tooth, the bucket come-up makes the disengaging of clutch external tooth and clutch internal tooth in by washings the buoyancy of floating drum being driven, the relative motion of bucket and impeller axle in forming, realize evenly distribution of clothing shake by the come-up and the whereabouts after the washing of interior bucket before washing, to realize the even moving upset of clothing better.
Described floating drum is the circulus of the hollow that formed by a plurality of working of plastics, and this circulus is made up of inside loop and outside loop, is linked to each other by radial muscle between the inside loop and outside loop, forms fan-shaped cavity between muscle and the muscle; Interior ring forms height of center low crowned on every side, encircles the top in the clutch internal tooth is located at.
Described agitation wheel for washing machine be low around one, gradually to the disc-shaped structure of central elevation, impeller is provided with the projection that can guide clothing to move to the center, projection is by the outwards radially radial distribution in impeller center, the width of projection therefrom mind-set is more and more wideer outward, the upper surface of projection is sentenced the step-down extension outward of tangent mode from central elevation, intersects at the lower on every side of impeller at last with arc.
The profile that described projection constitutes on impeller surface for the multi-section circular arc contact of a curve constitute at " eight " font structure that radially extends, the both sides of projection are the slope with the transition of impeller surface smoothing, the slope and in twos between the projection slanted angle between the impeller surface be 90 °～120 °, wherein the slanted angle apart from one section slope of impeller center 1/4-2/3 is 110 °～120 °.
The height of projection is the 1/10-1/9 of impeller diameter, and projection accounts for the 1/5-1/2 of the impeller gross area.
Above-mentioned impeller structure makes clothing rotate at impeller under the water impact effect that forms better, produces during the frictional force of projection itself, motive force and impeller rotate under the centrifugal force acting in conjunction to clothing to move to the impeller center.
In order to realize even moving upset better, impeller rotating object speed is 60-100 rev/min to washing machine shown in the present when low load clothing at the different loads clothing, and the acceleration time is 100ms-350ms, and at the uniform velocity the time is 200ms-800ms; During the load clothing impeller rotating object speed be 70-120 rev/min, the acceleration time is 110ms-350ms, at the uniform velocity the time is 300ms-800ms; Impeller rotating object speed is 80-140 rev/min during the heavy duty clothing, and the acceleration time is 120ms-350ms, and at the uniform velocity the time is 400ms-800ms; Dwell time is 0ms-1000ms.
The low load clothes weight of washing machine of the present invention is 0kg～2kg, and middle load clothes weight is 3kg～5kg, and the heavy duty clothes weight is 6kg～8kg.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
During washing machine washing clothes of the present invention, by the effect of impeller to clothing, forms of motion is no longer single, clothing arrives summit, impeller center from the impeller outside along impeller after, because clothing rises than higher, translate into barrel bottom in the outermost outward under gravity, centrifugal force and the effect of clothing on every side; The diameter ratio of impeller diameter and interior bucket be 0.6-0.8 in order to make clothing fall in interior bucket territory, base area, slow down the speed of rotating with impeller, increase clothing landing and the buffering that enters impeller simultaneously, make that the clothing upset cycle can be continuous; Friction evenly made the clothing uniformity greater than 95% when clothing moved in interior barrel, cleaned ratio greater than 0.9, and the clean ratio that has washing machine now is generally 0.7-0.8, and the uniformity is up to 80%; Because impeller is to the clothing power that also has certain effect, therefore clothing reduces the dependence of water, it is less to reach the washing agent consumption that the wash solution of same concentrations needs, the water-saving while has also been saved the consumption of washing agent relatively, reduced the pollution of draining, each washing probably can be saved the water of 30%-50%.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Description of drawings
Fig. 1 is washing machine inner tub of the present invention and impeller structure sectional schematic diagram;
Fig. 2 is a washing machine washing clothes upset track schematic diagram of the present invention;
Fig. 3 is the even moving rollover states schematic diagram of washing machine washing clothes of the present invention;
Fig. 4 is that washing machine of the present invention adds laundry load and water level concerns schematic diagram;
Fig. 5 is an interior bucket perisporium tiling schematic diagram of the present invention;
Fig. 6 is an impeller structure schematic diagram of the present invention;
Fig. 7 is a raised structures schematic diagram of the present invention;
Fig. 8 is the stressed schematic diagram of washing methods clothing of the present invention in impeller outside, interior bucket bottom;
Fig. 9 be washing methods clothing of the present invention between two projections when zone stressed schematic diagram;
Figure 10 is that washing methods clothing of the present invention is along projection stressed schematic diagram when up move in the impeller center;
Figure 11 is that washing methods clothing of the present invention is along projection stressed schematic diagram when impeller center top moves;
Figure 12 is washing methods clothing of the present invention stressed schematic diagram when interior bucket bottom chamfer place down moves.
The specific embodiment
Washing machine of the present invention comprises the outer bucket that is filled with water, be located at the interior bucket 1 of placing clothing in the outer bucket, the drive unit that bucket and impeller rotate in rotating impeller 2 and the control, as depicted in figs. 1 and 2, impeller 2 is provided with the projection 3 that can guide clothing to move to the center, clothing to impeller center 4 move upwards arrive the summit after, the mode (consulting Fig. 3) of turning up with layered laminate is the bucket end in periphery is rolled and dropped to along inner barrel wall, promptly, promote a circle evenly shake upset successively by the outside circle in center, mode of washing of the present invention does not need high water level, as long as slurry can soak clothing, when floating clothing, also can realize in enough water the high efficiency washing, generally according to the load capacity of clothing input, the clothing of the required increase of the every increase of described washing machine 1kg amount load mixes difference in height h with water
1Satisfy: h
1=(π D
2H-4V
1)/(K π D
2), so that contacting not exclusively with impeller, clothing floats, and wherein, D is interior bucket diameter, and h is the impeller height, V
1Be the impeller volume, K is an optimum load amount of placing clothing in the scope of impeller height between impeller and the interior bucket.
Washing clothes of the present invention is successively evenly shaken upset by the center to the outer ring, wherein, evenly be meant and be evenly distributed, even distribution when being included in clothes agitating in the washing process, be specially, clothing with impeller rotation process and clothing with the current switching process in, with certain frequency shake upset, that the shake upset comprises is loosening between clothing and the clothing, break away from the upset and the clothing self that twine trembles diffusing upset; The frequency of shake is relevant with the dead time between motor speed, rotating time and the rotating.
As shown in Figure 4, the interior bucket and the impeller schematic diagram of washing machine, interior bucket diameter D is 472mm, impeller height h is 98mm, impeller volume V
1Be 3020760mm
3, volume is V between impeller and the interior bucket
2, the volume that the clothing that increasing 1kg amount load clothing needs mixes with water is V
3, it is h that increase 1kg amount load clothing needs clothing to mix difference in height with water
1, calculate:
V
2＝π(D/2)
2＝3.14*(472/2)*(472/2)*98-302070＝16836703mm
3
Actual V
2Optimum load amount is 2kg in the space, draw every kg load mix with water the back optimum capacity be V
3=V
2/ 2=8418351mm
3
The above height of water level in corresponding impeller top is h
1=4*V
3/ (3.14*472*472)=4*8418351/ (3.14*472*472)=48.14mm, and promptly more than the impeller top, every increase 1kg load clothing, the corresponding average rising 48.14mm that clothing mixes with water.
Concrete, the water yield of adding when hanging down the load clothing is for surpassing agitation wheel for washing machine centre-height 80mm-150mm, in the water yield of adding during the load clothing for surpassing agitation wheel for washing machine centre-height 150mm-220mm, the water yield of adding during the heavy duty clothing is for surpassing agitation wheel for washing machine centre-height 220mm-300mm.This mode of washing can both better be saved slurry at the unequally loaded clothing.Calculate the ratio such as the following table of the height of water level and the interior bucket diameter of every kg load:
As shown in Figure 1, the bucket below is equipped with the floating drum 11 of hollow in of the present invention, impeller 2 is fixed on the impeller axle, bucket 1 in the impeller axle other end passes, floating drum 11 is in transmission connection with drive unit, the impeller axle is provided with a clutch external tooth, floating drum 11 belows are provided with the clutch internal tooth 10 with the engagement of clutch external tooth, bucket 1 come-up makes the disengaging of clutch external tooth and clutch internal tooth in by washings the buoyancy of floating drum 11 being driven, the relative motion of bucket and impeller axle in forming, realize evenly distribution of clothing shake by the come-up and the whereabouts after the washing of interior bucket before washing, to realize the even moving upset of clothing better.
Above-mentioned floating drum 11 is circuluses of the hollow that formed by a plurality of working of plastics, and this circulus is made up of inside loop and outside loop, is linked to each other by radial muscle between the inside loop and outside loop, forms fan-shaped cavity between muscle and the muscle; Interior ring forms height of center low crowned on every side, encircles the top in the clutch internal tooth is located at.
As shown in Figure 5, bucket 1 is rolled by the stainless steel tablet and to form in described, in the friction area of bucket perisporium when being provided with the inside die mould of multi-turn ring-type 7 and falling to increase clothing, be provided with ring-type uniform outside flange 8 and circular hole 9 or slotted hole between the twice annulars die mould 7, the all wall thickness of bucket are 0.4mm-1mm in described, the die mould degree of depth is 1mm-5mm, and the spacing in two holes is 10mm-15mm.This pressure-type structure has also reduced the time that clothing drops downwards when increasing friction area, reduce the clothing possibility that perisporium is piled up at the bottom of bucket, better realizes the complete upset of clothing.
Thereby an interior bucket end perisporium circumference is evenly distributed with a plurality of clothings that can stop and rotates the projection 5 that changes the clothing moving direction fully with impeller, and the diameter ratio of impeller 2 diameters and interior bucket 1 is 0.6-0.8.The diameter ratio of impeller diameter and interior bucket is that 0.6-0.8 is in order to make clothing fall in interior bucket territory, base area, to slow down the speed of rotating with impeller, increase clothing landing and the buffering that enters impeller simultaneously, making that the clothing upset cycle can be continuous; The diameter ratio of impeller diameter of the present invention and interior bucket is preferably 0.65-0.75.Projection 5 quantity are 3-12, because impeller rotates, clothing has the turnaround speed of rotating with impeller equally, can produce centripetal force in order better to reduce clothing again with the swing of impeller, projection preferably is provided with the 8-12 piece, can make clothing obtain the angular speed that centripetal force can reduce the clothing swing again better.
As shown in Figure 6, agitation wheel for washing machine 2 of the present invention be low around one, gradually to the disc-shaped structure of central elevation, described projection 3 has 3-6, projection 3 is by the outwards radially radial distribution in impeller center 4, the width of projection 3 is outwards more and more wideer from impeller center 4, the tail fin of the shape class whale fish of projection, the upper surface of projection 3 from impeller center 4 bump pads with tangent mode outward step-down extend, intersecting at the lower on every side of impeller at last with arc, is 3mm-10mm (consulting Fig. 7) apart from the outer peripheral distance L of impeller.The height of projection 3 at impeller center 4 is the 1/10-1/9 of impeller diameter, and projection 3 accounts for the 1/5-1/2 of the impeller gross area.The profile that described projection constitutes on impeller surface for the multi-section circular arc contact of a curve constitute at " eight " font structure that radially extends, the both sides of projection are the slope with the transition of impeller surface smoothing, the slope and in twos between the projection slanted angle between the impeller surface be 90 °～120 °, wherein the slanted angle apart from one section slope of impeller center 1/4-2/3 is 110 °～120 °.Impeller surface between the projection is provided with a plurality of through holes 6 in twos, according to radially and circumferencial direction evenly distribute to increase clothing and the stiction on impeller surface and the active force between change clothing and the current.Described through hole is a circular hole, and Circularhole diameter is 3mm-5mm, or described through hole is a slotted hole, and the slotted hole width is 3mm-5mm, and length-width ratio is 1.5-2.5.
As shown in Figure 7, the projection sloped sides is divided into outslope 31, intermediate ramp 32, interior slope 33 according to the distance at distance impeller center, outslope 31 and interior slope 33 are 100 °～110 ° with impeller surface tilt angle β, γ, and intermediate ramp 32 is 120 ° with impeller surface tilt angle θ.
Said structure makes clothing rotate at impeller under the water impact effect that forms better, produces during the frictional force of projection itself, motive force and impeller rotate under the centrifugal force acting in conjunction to clothing to move to the impeller center.
During washing machine washing clothes of the present invention, when clothing moves to 4 tops, impeller center, the clothing motion mode is, clothing moves upward along inertia, behind the of short duration upthrow do under the effect of centrifugal force and bottom clothing the transhipment of turning up moving in arriving barrel 1 perisporium away from the position at impeller center, clothing rotates the centripetal force that produces at interior bucket and reaches under the acting in conjunction of the downward pulling force of the clothing of its lower floor bucket 1 bottom in moving to then.Its movement locus as shown in Figure 2, in whole motion, each position of clothing is all carried out stressed and motion, and is stressed little but frequency is higher and relatively evenly.In washing process, periodic like this acting on, abrasive forces is little, and good to the removal effect of dirt, and above-mentioned motion is the motion mode that the size of laundry load amount and water consumption is presented when reaching best.
Particularly, above-mentioned clothing upset washing is divided into forward and backward half period of motion, preceding half period of motion is: when clothing during in interior bucket 1 bottom and away from the impeller central motion, clothing rotates under the water impact effect that forms at impeller 2, frictional force, motive force and the impellers 2 of projection 3 itself produce in rotating under the centrifugal force acting in conjunction to clothing, moves up to the top at impeller center 4 when rotating with impeller along projection 3.
Half period of motion of back is: move in the process at 4 tops, impeller center the thrust that makes progress that the clothing that will move upward below it is subjected to gives and the percussion of current at clothing; When clothing moves to 4 tops, impeller center, it continues to move upward owing to inertia, simultaneously it is subjected to self gravity effect and the centrifugal force that produces in rotating of the pulling force that gives of the following clothing that has fallen and torsion and impeller, clothing do behind the of short duration upthrow outside flip-flop movement in arriving barrel 1 bottom away from the position at impeller center.
Shown in Fig. 8-12, clothing is stressed the having nothing in common with each other in diverse location place of the interior bucket end and impeller, and its concrete analysis is as follows.
A, when impeller 2 outsides of clothing in interior bucket 1 bottom, clothing is subjected to make the stiction Δ F from impeller 2 of clothing along with the impeller motion
Static friction, the active force Δ F that comes from the clothing on impeller 2 that clothing is moved upward
Clothing, make clothing that inside bucket bottom 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 be arranged
Water, stop the clothing movement tendency from the frictional force Δ F between clothing and the interior bucket 1
Friction Power, the active force that closes gravity G of clothing self and vertical clothing on it.Buoyancy Δ F
FloatingMinimum to the clothing motion effects herein, can ignore, as shown in Figure 8, impeller clockwise rotates, and clothing institute is stressed to be:
Δ F
Close=Δ F
Frictional force+ Δ F
Static friction+ Δ F
Water+ Δ F
Clothing+ G
This moment, the movement locus of clothing was, moved upward along impeller 2 when clothing rotates with impeller 2.
B, when clothing when zone between two projections 3, institute is stressed is for it:
Δ F
Close=Δ F
Frictional force+ Δ F
From+ Δ F
Push away+ Δ F
Static friction+ Δ F
Water+ Δ F
Clothing+ G+ Δ F
Floating
Δ F
Frictional forceBe the frictional force that the lower clothing of vertical height gives, Δ F
FromBe the centrifugal force that impeller 2 forms in rotating process, Δ F
Push awayBe the thrust of 3 pairs of clothings of projection, Δ F
Static frictionFor impeller 2 gives the stiction of clothing, Δ F in the process that starts
WaterBe the active force of the current of formation under impeller 2 promotions, Δ F
ClothingBe torsion and the resistance that the higher clothing of vertical height gives, G is a vertical height than the gravity that closes of its high clothing and self.Impeller 2 stops and starting what do not stop in the washing process, gives clothing from the effect that the stiction of impeller 2 does not stop, and makes it continue to move upward, stressing conditions as shown in Figure 9, this state is that impeller clockwise rotates.
C, when clothing when projection 3 is up moved by export-oriented center, it is stressed to be:
Δ F
Close=Δ F
Frictional force+ Δ F
Static friction+ Δ F
Water+ Δ F
Clothing+ 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 clothing on every side, G for himself and vertical height than it high and press thereon clothing close gravity, the thrust Δ F that makes progress that leans on following clothing to give in this process
Push awayWith the stiction Δ F of impeller 2 in starting
Static friction, the active force Δ F of current
Water, Δ F
ClothingBe torsion and the resistance that the higher clothing of vertical height gives, Δ F
FromFor rotate the centrifugal force of generation, Δ F along with impeller
The impeller leafBe the thrust that projection gives, be subjected to the effect of these power that clothing is up moved, stressing conditions as shown in figure 10, this state is that impeller rotates counterclockwise.
D, when clothing along projection 3 when impeller center 4 tops move, it is stressed to be:
Δ F
Close=Δ F
Frictional force+ G+ Δ F
Push away+ Δ F
From+ Δ F
Clothing+ Δ F
Water
Frictional force Δ F herein
Frictional forceBe the frictional force that impeller 2 is given clothing, because clothing will break away from impeller 2, frictional force is very little, the thrust Δ F that makes progress that clothing is given by following clothing mainly
Clothing, rotate the Δ F that produces with impeller
FromThe thrust Δ F that gives with projection
Push away, Δ F
WaterBe impact force of water flow, clothing keeps this movement tendency, until breaking away from impeller 2; Clothing breaks away from impeller when moving to top, because the gravity effect of self, clothing is done of short duration similar projectile motion; Because impeller, water level are to the effect of active force and the thrust between the clothing and the pulling force of clothing, the outer ring clothing has just outwards overturn and has not also run into inner barrel wall, another part clothing turns up by the center is stressed again, promoting this outer ring outwards continues, by that analogy, final formation by center outside enclosed evenly shake upset successively; Outmost turns is rotated the inner barrel wall place that moves under the centrifugal action that produces away from the impeller center in the effect of clothing with along with the ripple road, stressing conditions as shown in figure 11, this state is that impeller rotates counterclockwise.
E, after clothing falls, it down moves along interior bucket 1 bottom chamfer place, clothing is subjected to the pulling force Δ F that vertical height is lower than its clothing
Draw, vertical height is higher than the pressure Δ F of its clothing
PressWith the centripetal force Δ F in the interior bucket rotation process
To, clothing is subjected to the Δ F that makes a concerted effort under oblique herein
CloseEffect, until interior bucket 1 bottom, stressing conditions as shown in figure 12, this state is that impeller rotates counterclockwise.
By the description of five processes of above-mentioned A-E, can draw a complete movement locus of clothing, as shown in Figure 2.
In order to realize even moving upset better, impeller rotating object speed is 60-100 rev/min to washing machine shown in the present when low load clothing at the different loads clothing, and the acceleration time is 100ms-350ms, and at the uniform velocity the time is 200ms-800ms; During the load clothing impeller rotating object speed be 70-120 rev/min, the acceleration time is 110ms-350ms, at the uniform velocity the time is 300ms-800ms; Impeller rotating object speed is 80-140 rev/min during the heavy duty clothing, and the acceleration time is 120ms-350ms, and at the uniform velocity the time is 400ms-800ms; Dwell time is 0ms-1000ms.
During washing machine washing clothes of the present invention, by the effect of impeller to clothing, forms of motion is no longer single, and washing evenly; Friction evenly made the clothing uniformity greater than 95% when clothing moved in interior barrel, cleaned ratio greater than 0.9, and the clean ratio that has washing machine now is generally 0.7-0.8, and the uniformity is up to 80%; Because impeller is to the clothing power that also has certain effect, therefore clothing reduces the dependence of water, it is less to reach the washing agent consumption that the wash solution of same concentrations needs, the water-saving while has also been saved the consumption of washing agent relatively, reduced the pollution of draining, each washing probably can be saved the water of 30%-50%.
Claims (10)
1. full-automatic impeller type washing machine, comprise the outer bucket that is filled with water, be located at the drive unit of bucket and impeller rotation in the floating drum of placing the interior bucket of clothing, rotating impeller, interior bucket below hollow in the outer bucket and the control, it is characterized in that: washing machine inner tub and impeller satisfy: the water yield that washing machine adds during washing is soaked clothing and clothing come-up and can not be broken away from and the contacting of impeller upper surface, and the clothing of the required increase of the every increase of washing machine 1kg amount load mixes difference in height h with water
1Satisfy: h
1=(π D
2H-4V
1)/(K π D
2), so that contacting not exclusively with impeller, clothing floats, and wherein, D is interior bucket diameter, and h is the impeller height, V
1Be the impeller volume, K is an optimum load amount of placing clothing in the scope of impeller height between impeller and the interior bucket, clothing is when rotating with impeller, along impeller to the impeller center move rise to the summit after, the mode of turning up with even shake is the bucket end, the cycle flip-flop movement that moves to the impeller center again in periphery is rolled and dropped to along inner barrel wall.
2. full-automatic impeller type washing machine according to claim 1 is characterized in that: the water yield of interpolation satisfies according to laundry load: be higher than agitation wheel for washing machine centre-height 80mm-300mm.
3. full-automatic impeller type washing machine according to claim 2, it is characterized in that: the water yield of adding when hanging down the load clothing is for surpassing agitation wheel for washing machine centre-height 80mm-150mm, in the water yield of adding during the load clothing for surpassing agitation wheel for washing machine centre-height 150mm-220mm, the water yield of adding during the heavy duty clothing is for surpassing agitation wheel for washing machine centre-height 220mm-300mm.
4. full-automatic impeller type washing machine according to claim 1, it is characterized in that: bucket is rolled by the stainless steel tablet and forms in described, in the friction area of bucket perisporium when being provided with the inside die mould of multi-turn ring-type and falling to increase clothing, being provided with ring-type uniform outside flange and circular hole or the width of diameter between 1mm-5mm between the twice annulars die mould is 1mm-3mm, and length-width ratio is the slotted hole of 2-3.
5. full-automatic impeller type washing machine according to claim 1, it is characterized in that: thus interior bucket end perisporium circumference is evenly distributed with and can stops that clothing rotates 3-12 the projection that changes the clothing moving direction fully with impeller, and the diameter ratio of impeller diameter and interior barrel is 0.6-0.8.
6. full-automatic impeller type washing machine according to claim 1, it is characterized in that: described impeller is fixed on the impeller axle, the impeller axle other end passes interior bucket, floating drum and drive unit and is in transmission connection, the impeller axle is provided with a clutch external tooth, the floating drum below is provided with the clutch internal tooth with the engagement of clutch external tooth, the bucket come-up makes the disengaging of clutch external tooth and clutch internal tooth in by washings the buoyancy of floating drum being driven, the relative motion of bucket and impeller axle in forming realizes evenly distribution of clothing shake by the whereabouts after the come-up of interior bucket before washing and the washing.
7. full-automatic impeller type washing machine according to claim 6, it is characterized in that: described floating drum is the circulus of the hollow that formed by a plurality of working of plastics, this circulus is made up of inside loop and outside loop, is linked to each other by radial muscle between the inside loop and outside loop, forms fan-shaped cavity between muscle and the muscle; Interior ring forms height of center low crowned on every side, encircles the top in the clutch internal tooth is located at.
8. full-automatic impeller type washing machine according to claim 1, it is characterized in that: described agitation wheel for washing machine be low around one, gradually to the disc-shaped structure of central elevation, impeller is provided with the projection that can guide clothing to move to the center, projection is by the outwards radially radial distribution in impeller center, the width of projection therefrom mind-set is more and more wideer outward, the upper surface of projection is sentenced the step-down extension outward of tangent mode from central elevation, intersects at the lower on every side of impeller at last with arc.
9. full-automatic impeller type washing machine according to claim 8, it is characterized in that: the profile that described projection constitutes on impeller surface for the multi-section circular arc contact of a curve constitute at " eight " font structure that radially extends, the both sides of projection are the slope with the transition of impeller surface smoothing, the slope and in twos between the projection slanted angle between the impeller surface be 90 °～120 °, wherein the slanted angle apart from one section slope of impeller center 1/4-2/3 is 110 °～120 °.
10. full-automatic impeller type washing machine according to claim 8 is characterized in that: the height of projection is the 1/10-1/9 of impeller diameter, and projection accounts for the 1/5-1/2 of the impeller gross area.
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| CN201110052317.6A CN102191652B (en) | 2010-12-23 | 2011-03-04 | Full-automatic impeller type washing machine |
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| CN201010601603 | 2010-12-23 | ||
| CN201010601603.9 | 2010-12-23 | ||
| CN201110052317.6A CN102191652B (en) | 2010-12-23 | 2011-03-04 | Full-automatic impeller type washing machine |
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| CN102191652B CN102191652B (en) | 2016-01-20 |
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| CN102191652B (en) | 2016-01-20 |
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Effective date of registration: 20160715 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. |