WO2013181901A1 - 一种自清洁洗衣机及控制方法 - Google Patents

一种自清洁洗衣机及控制方法 Download PDF

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Publication number
WO2013181901A1
WO2013181901A1 PCT/CN2012/084714 CN2012084714W WO2013181901A1 WO 2013181901 A1 WO2013181901 A1 WO 2013181901A1 CN 2012084714 W CN2012084714 W CN 2012084714W WO 2013181901 A1 WO2013181901 A1 WO 2013181901A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
water
washing machine
cleaning particles
barrel
Prior art date
Application number
PCT/CN2012/084714
Other languages
English (en)
French (fr)
Inventor
舒海
吕佩师
李海涛
许升
Original Assignee
海尔集团公司
青岛海尔洗衣机有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201210188605.9A external-priority patent/CN102733147B/zh
Priority claimed from CN201210188601.0A external-priority patent/CN102733146B/zh
Priority claimed from CN201210188593.XA external-priority patent/CN102733145B/zh
Priority claimed from CN 201210188729 external-priority patent/CN102733156A/zh
Application filed by 海尔集团公司, 青岛海尔洗衣机有限公司 filed Critical 海尔集团公司
Priority to IN2440MUN2014 priority Critical patent/IN2014MN02440A/en
Priority to JP2015515367A priority patent/JP6103045B2/ja
Priority to EP12878475.8A priority patent/EP2860303B1/en
Publication of WO2013181901A1 publication Critical patent/WO2013181901A1/zh
Priority to US14/559,679 priority patent/US9605368B2/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/008—Methods for washing, rinsing or spin-drying for disinfecting the tub or the drum

Definitions

  • the invention relates to the field of washing machines, in particular to a self-cleaning washing machine for automatically cleaning between the inner and outer barrels with the washing particles between the inner and outer barrels, and a control method for collecting the cleaning particles.
  • the existing pulsator washing machine is a closed environment between the inner and outer barrels. Only the water flow can pass. Due to the limitations of the above structure of the washing machine and the particularity of the use environment, after 3-5 months of use, the outer wall of the inner barrel and The inner wall of the outer tub will adhere to dirt, which will breed different degrees of bacteria, and most of the bacteria that breed are harmful to the human body.
  • Cigar patent 200820183308 discloses a drum washing machine with barrel cleaning, which comprises an inner barrel, an outer barrel and a plurality of round silicone balls for cleaning the inner and outer barrel walls, and the rotation of the inner barrel is used to drive the flow of water during washing. Thereby, the silica gel ball between the inner barrel and the outer barrel of the washing machine is moved and continuously hits the two walls of the inner and outer barrels to achieve the purpose of cleaning the inner and outer barrel walls.
  • the applicant discloses in Chinese application 201010160548. 4 a washing machine and a method for cleaning the inner and outer barrels of a washing machine using flexible granules, wherein the washing machine adopts a law of placing flexible granules between the inner and outer barrels of the washing machine, and the water in the washing process.
  • the sexual flow drives the flexible particles to impact and rub the inner and outer barrel walls of the washing machine to clean the inner and outer barrels of the washing machine.
  • the inner bottom reinforcement rib is high, and the gap with the outer bottom of the barrel is small, the cleaning particles are not easily entered between the inner and outer barrel bottoms, and the individual particles entering with the water flow are also easily caught or The restriction is not allowed to come out in the groove, so that the particles between the inner and outer barrels are reduced, which affects the normal cleaning function of the barrel wall.
  • the cleaning particles that enter the inner wall of the inner and outer barrels with the movement of the water flow are densely distributed, and the grooves are formed. Small, it is not suitable for particle movement in a small groove to obtain sufficient acceleration to collide with the barrel wall to clean the bottom wall of the barrel.
  • the present invention has been made in view of the above.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a cleaning granule between the inner and outer barrels for cleaning Self-cleaning washing machine with clean barrel function.
  • Another object of the present invention is to provide an isolation structure for blocking the cleaning particles of the self-cleaning washing machine from being separated from the inner and outer tubs. It is still another object of the present invention to provide a method of controlling the collection of cleaning particles by the self-cleaning washing machine.
  • a self-cleaning washing machine comprising an outer tub, an inner tub, a pulsator and a drainage device, wherein a cavity between the inner tub and the outer tub is provided with a cleaning outer wall of the outer tub and a cleaning granule of the outer wall of the inner tub, the washing machine being provided with an isolation structure for preventing the cleaning particles from leaving the chamber, comprising a filtering mechanism disposed in the drainage device to block the discharge of the cleaning particles during drainage, and/or a cleaning granule disposed at the bottom of the inner barrel A grill mechanism that enters the inner tub from the bottom of the inner tub.
  • the isolation structure further includes a filter grille disposed at the overflow of the outer tub to block the outflow of the cleaning particles with the overflow water.
  • the filter grille and the outer tub are integrally injection molded structures, or are separated structures, preferably a filter grille.
  • the outer tub is of a plug-in type structure, and slots are formed on both sides of the overflow port, and the filter grille is inserted into the slot; or the filter grille and the outer tub are buckled structures.
  • the filter grille comprises a frame matched with the overflow opening and a blocking rib disposed in the frame body, and the blocking ribs are divided into two groups, and the two sets of blocking ribs are separated by a gap smaller than the cleaning particles, and the two groups are adjacent to each other.
  • the gap between the barrier ribs is smaller than the gap of the cleaning particles, and the filter faces formed by the two groups of barrier ribs corresponding to the inner side of the outer tub are curved or inclined surfaces that are concave toward the other side in the direction of the barrier ribs in the direction of the barrier rib; preferably, two groups
  • the barrier ribs are symmetrically arranged or the extension directions are alternately arranged.
  • the filter grid is a horizontal grid or vertical grid or filter structure.
  • the isolation structure further includes an outer tub cover disposed on the upper portion of the outer tub to block the annular opening of the chamber, and the outer tub cover corresponding to the annular opening is provided with a particle input port for replenishing the amount of cleaning particles in the chamber; preferably, the granular input port is provided There is an openable and closable cover.
  • the pulsator is a self-cleaning pulsator, comprising a wave plate and a water-spraying leaf disposed on the upper surface of the wave plate, and at least one water-permeable hole is arranged at the top of the water-spreading leaf, and is corresponding to the groove space at the bottom of the water-spreading leaf; A plurality of water permeable holes are distributed along the circumferential direction at a position of the water leaf near the edge of the wave plate, and at least two water permeable holes are distributed in the radial direction near the center of the pulsator.
  • the lower surface of the wave plate is provided with a plurality of groove spaces formed by the wave plate reinforcing ribs, and at least one water permeable hole is provided in each of the groove spaces outside the water-leaf leaf area to form a flushing space in the groove space. The flow of water.
  • the lower surface of the wave plate is provided with an antibacterial and mildewproof coating.
  • the invention also provides a drainage device, which collects and washes the particles by draining dehydration during drainage and dehydration to avoid noise generated by the cleaning particles hitting the barrel wall between the inner and outer barrels during dehydration, and can smoothly block the cleaning particles while being Chips, sheets such as coins, buttons, etc., and other debris smaller than the cleaning particles are discharged to avoid clogging.
  • the drainage device comprises a particle collection chamber and a drainage chamber for holding the cleaning particles during dehydration, and floating the cleaning particles to the cleaning barrel wall by buoyancy when the water is introduced, and the filtering mechanism is disposed on the particles. Between the retracting chamber and the drain chamber.
  • the filter mechanism not only blocks the cleaning particles but also allows the removal of debris and debris that is smaller than the cleaning particles.
  • the filtering mechanism comprises a plurality of retaining ribs for blocking the cleaning particles, and the retaining ribs are divided into two groups, wherein the gap between the two sets of retaining ribs is smaller than that of the cleaning particles, and the size between the two adjacent retaining ribs of the same group is smaller than the cleaning particles.
  • Filtration gap, two sets of retaining ribs corresponding to the side of the particle receiving chamber The filtering surface is a curved surface or an inclined surface which is concave to the other side at the fracture position, and the filtering surface is a V-shaped or inverted figure-eight structure in which the bottom is broken.
  • the fracture not only allows the swarf wound on the rib to slide to the end of the rib to pass therethrough, but also allows the passage of buttons, coins, etc., further reducing the possibility of swarf clogging.
  • the fracture ribs are divided into two sets of oppositely arranged comb-tooth structures, and the rib extension lines of the two sets of comb-tooth structures are alternately arranged.
  • the alternately extending structure of the rib extension lines allows the cleaning particles to block the passage of the cleaning particles even under the condition of fixed size, even if the distance between the two adjacent ribs is increased, thereby further reducing the possibility of swarf clogging.
  • the two sets of comb-tooth structures are arranged up and down or left and right, with a transverse or longitudinal fracture between them, and the extension line of the ribs of one set of comb-tooth structure and the ribs of the other set of comb-tooth structure are alternately longitudinally alternately,
  • the straight lines of the ribs of the comb-tooth structure are parallel, and the distance between adjacent lines is the same.
  • the three barrier rib ends adjacent to each other of the two comb-tooth structures constitute a particle blocking portion of the fracture in the triangular region.
  • the distance between the adjacent two retaining ribs of each comb-tooth structure can be larger or not when the cleaning particle size and the fracture size are fixed. The cleaning particles pass.
  • the drainage device of the present invention is disposed under the outer tub, and the upper wall of the particle retracting chamber is provided with a through port communicating with the drainage opening of the bottom of the outer tub, and the upper wall of the particle retracting chamber is inclined obliquely upward from the periphery to the opening. .
  • the tilting direction causes the cleaning particles to float toward the port as the water level rises, and then enters the chamber between the inner and outer barrels through the drain port. During the drainage and dehydration process, the cleaning particles flow into the particle retracting chamber along with the drainage water flow.
  • the cleaning particles When the water enters the water, the cleaning particles float upward as the water level of the particle retracting chamber rises, and the cleaning particles move along the oblique direction, that is, It is said to move obliquely upwards, so that it is more convenient to enter the mouth and then enter the inner and outer barrels through the drain.
  • the side opposite to the drainage chamber of the particle retracting chamber is provided with an opening communicating with the outside, and the opening is provided with an opening and closing sealing cover, and the circumferential inner wall of the sealing cover is a caliber toward the interior of the particle receiving chamber.
  • the progressive round table perimeter wall structure is provided.
  • the above structure can use the buoyancy of the water to completely re-deliver the cleaning particles between the inner and outer barrels to continue cleaning the wall of the barrel.
  • the inclined inner wall structure makes it easier to put the cleaning particles back again, avoiding the cleaning particles floating up.
  • the blockage caused by the failure is not simple, the structure is simple, and the production and installation cost is low.
  • the present invention also provides a grill mechanism for preventing cleaning particles from entering the inner tub from the bottom of the inner tub, the grill mechanism comprising a blocking cover that cooperates with the flange to block the cleaning particles from entering the inner tub from the hollow region of the inner tub bottom, blocking the cover A water passage hole is formed to block the passage of the cleaning particles.
  • the blocking cover is a hollow annular cover body, and the flange body corresponds to a hollow position for blocking the blocking cover.
  • the diameter of the flange body is d
  • the inner diameter of the hollow portion of the inner barrel bottom is D
  • the inner diameter of the blocking cover is dl.
  • the outer diameter is d2, which satisfies dl 3 ⁇ 4 ⁇ d ⁇ D3 ⁇ 4 ⁇ d2, or satisfies dl 3 ⁇ 4 ⁇ d ⁇ d2 ⁇ D, and the difference between the inner diameter D of the hollow portion at the bottom of the inner barrel and the outer diameter d2 of the blocking cover satisfies the size of the cleaning particles and cannot be removed from the inner barrel.
  • the edge of the hollow portion of the bottom passes through the gap between the outer edge of the blocking cover.
  • the blocking cover is a separate structure, which is sandwiched or bonded between the inner tub bottom and the flange, or the blocking cover and the inner tub bottom are integrated, or the blocking cover and the flange are integrated, or the blocking cover is The inner barrel bottom and the flange are integrated.
  • the blocking cover can prevent the cleaning particles between the inner and outer barrels from entering the inner tub, and the effect of cleaning the barrel wall due to the reduction of the cleaning particles between the inner and outer barrels is avoided.
  • the water passing hole is a straight long slit structure or a curved long slit structure. Because the wire scraps in the wash water are mostly swarf The filter structure collects, a small part of the wire is small and dispersed into a thin strip, so the water hole does not cause wire jam.
  • the water passing hole is a funnel structure with a reduced size from top to bottom. This structure enables foreign matter such as coins, buttons, and the like to pass, reducing the possibility of clogging while preventing the cleaning particles from entering the inner tub.
  • the outer bottom of the inner tub is provided with a plurality of grooves formed by the bottom reinforcement ribs, and the gap between the bottom of the bottom reinforcement rib and the bottom of the outer bucket is larger than the size of the cleaning particles, and the bottom reinforcement rib
  • the size of the groove formed by the enclosure is such that at least 2 cleaning particles are placed flat, preferably 2-5 cleaning particles are placed.
  • Each groove can be used to clean the particles into the movement of the water to obtain the motion acceleration to collide with the friction to clean the inner and outer barrel bottom walls.
  • the groove comprises a large groove formed by the outer barrel bottom reinforcing rib and a small groove formed by the inner barrel bottom reinforcing rib in the large groove.
  • the height of the outer barrel bottom rib is greater than the inner barrel bottom rib.
  • the height of the inner barrel bottom reinforcement is not more than 5mm.
  • the bottom of the inner tub adds at least one water-permeable through hole corresponding to each groove, which not only reduces the dirt adhering to the inner and outer barrel bottom walls, but also increases the fluidity of the cleaning particles, and prevents the cleaning particles from being stuck in the inner bottom of the barrel.
  • the cleaning particles of the invention can float in the water, and impact the inner and outer barrel walls with the water flow between the inner and outer barrels of the washing machine, and the cleaning of the barrels between the inner and outer barrels of the washing machine by the cleaning of the washing particles during the washing process and the friction of the inner and outer barrel walls.
  • the washing water is discharged from the drainage device, and the cleaning particles flow into the particle collecting chamber with the drainage; when the water is rinsed or the next time the water is washed again, the cleaning particles are discharged from the water outlet according to the rising water level. The particles are floated out of the chamber into the outer tub.
  • the cleaning particles can be sponge materials or rubber or plastic.
  • Foaming materials such as foamed rubber, foamed plastic, foamed composite polyurethane, preferably using an adsorbent material, make it better to clean the barrel wall, and the cleaning particles should have a certain elasticity, and the density is higher than that in the dry state. Small, water-soaked in water, cheap, can be removed directly after opening the seal through the opening of the storage chamber opening, and then reuse the new cleaning particles.
  • the cleaning particles are spherical, square, elliptical, cylindrical, tetrahedral or other irregular agglomerated particles, the number of which is 3-50, the density of these particles is smaller than water, and it has certain elasticity and Wear resistance.
  • the invention also provides a control method for collecting and cleaning particles by drainage in the above-mentioned self-cleaning washing machine during drainage and dehydration, which is simple in method, realizes complete collection of particles, and avoids noise generated by washing particles against internal and external barrels during dehydration.
  • the method is as follows: During the draining process and/or drying process, the inner bucket is controlled to operate differently, so that the cleaning particles flow together with the washing water through the drain port and are collected by the drain valve.
  • the inner tub is controlled to rotate at a low speed of 5-50 rpm, so that the cleaning particles between the inner and outer barrel walls fall between the inner and outer barrels, flow along the water in the outer tub, and are drained. Valve collection.
  • the inner bucket is controlled to perform at least one braking action, so that the cleaning particles between the inner and outer barrel walls fall between the inner and outer barrels, and the water that is withdrawn from the clothes flows through the drainage port and is collected by the drain valve.
  • the drying stage includes medium speed ⁇ clothing water washing and cleaning granules, at least one high speed drying and braking, and the maximum speed is dried to the end, wherein The time allocation of each action at this stage depends on the total time of the dry process.
  • the spin-drying phase the set inlet time is increased, the flushing flow is increased, and the auxiliary cleaning particles pass through the drain to enter the drain valve.
  • the specific steps in the above-mentioned drying phase are:
  • the inner bucket At the end of the drainage, the inner bucket first washes the clothes water at a medium speed, runs for 10-60 seconds, or repeats 2-8 times according to the law of 2-5 seconds of medium speed and 5_15 seconds of stopping, and takes out most of the water in the clothes. Flowing through the drain to the drain valve together with the particles left at the bottom of the outer tub;
  • step b Repeat step b for 1-6 times;
  • step c water is infused for 5-15 seconds, and step a is repeated, and then step b is repeated.
  • the medium speed is 200-500 rpm
  • the high speed is 500-700 rpm
  • the maximum speed is 700-1600 rpm.
  • the present invention has the following advantageous effects as compared with the prior art.
  • the self-cleaning washing machine of the present invention has a cleaning granule for cleaning the wall of the barrel between the inner and outer barrels, and an isolation structure for preventing the cleaning particles from leaving the chamber, including being disposed in the drainage device to block the cleaning particles from being drained.
  • the above structure is simple and can effectively block the cleaning particles from leaving the chamber.
  • the drainage device of the present invention is directed to a washing machine having a function of cleaning the inner and outer barrel walls between the inner and outer barrels with cleaning particles, and is capable of collecting cleaning particles during drainage to prevent the cleaning particles from damaging the barrel wall between the inner and outer barrels during dehydration. And, when entering the water, the buoyancy can be used to re-float the cleaning particles out of the particle retracting chamber to the outer tub to continue to clean the barrel wall; the drainage device has a simple structure, low cost, and does not affect the discharge of the lint when intercepting and collecting the cleaning particles. , to avoid bacterial growth caused by drainage blockage and residual swarf.
  • the outside of the bottom of the washing machine of the washing machine of the present invention is provided with a groove for cleaning particles to enter the wall of the inner and outer barrels with the movement of water, so that the cleaning particles between the inner and outer barrels can clean the inner and outer barrel bottom walls.
  • the structure is simple, and the design and distribution of the reinforcing ribs are changed in the inner barrel bottom injection molding process, so that the cleaning particles have a space capable of moving with the water flow between the bottom of the inner and outer barrels, without additionally increasing the material cost and reducing the inner barrel strength.
  • the bottom of the inner tub of the washing machine of the invention is provided with a blocking cover, which can prevent the cleaning particles of the chamber between the inner and outer barrels from entering the inner barrel through the bottom of the inner barrel, thereby avoiding the influence of the cleaning particles between the inner and outer barrels on the outer wall of the inner barrel and The cleaning effect of the inner wall of the outer tub; the water passing holes distributed on the blocking cover does not affect the circulation of the washing water between the inner tub and the outer tub, and is not blocked by the thread; the structure is simple and the cost is low.
  • the water between the inner and outer barrels exchanges with the water in the inner barrel during the washing process, because the pulsator or the inner barrel rotates in the forward and reverse directions, forming a water flow, and driving between the inner and outer barrels.
  • the cleaning particles swim in the water, collide and rub the inner and outer barrel walls, and at the same time clean the inner and outer barrel walls and the bottom barrel bottom under the aid of water soaking, which basically prevents the generation of dirt and eliminates the breeding of bacteria.
  • the inner and outer barrels are also cleaned, washed at any time, cleaned at any time, leaving no dirt, and clean.
  • the inner drum is rotated at a low speed when the washing machine drains, so that the cleaning ball between the inner and outer barrel walls falls between the inner and outer barrels, and the cleaning particles flow through the water outlet to the drain valve, and are collected by the filtering structure in the particle collecting chamber. Even if the cleaning particles remaining at the bottom of the inner tub can be completely collected by controlling the action of the inner tub during drying, the noise of the cleaning particles hitting the barrel wall during drying is avoided.
  • Figure 1 is a partial cross-sectional view of the outer tub of the washing machine of the present invention
  • FIG. 2 is a schematic structural view of the outer tub of the present invention.
  • Figure 3 is a cross-sectional view showing the outer tub and the inner tub of the washing machine of the present invention.
  • Figure 4 is a schematic view showing the structure of the pulsator of the present invention.
  • Figure 5 is a schematic view of the lower surface of the pulsator of the present invention.
  • Figure 6 is a schematic view of the drainage device of the present invention.
  • Figure 7 is a side elevational view of the drainage device of Figure 6;
  • Figure 8 is a cross-sectional view taken along line B-B of the drainage device of Figure 7;
  • Figure 9 is a schematic view showing the installation structure of the inner tub bottom, the blocking cover and the flange according to the present invention.
  • FIG. 10 and FIG. 11 are respectively schematic structural views of different embodiments of the inner bottom of the washing machine of the present invention.
  • 12 to 15 are schematic views showing the flow of a particle collection control method according to various embodiments of the present invention.
  • the self-cleaning washing machine of the present invention comprises an outer tub 1, an inner tub 2, a pulsator 3 and a drainage device 4, and a cleaning chamber 5 is provided in the chamber 5 between the inner tub 2 and the outer tub 1.
  • Cleaning particles 6 (see FIG. 3) of the inner wall of the outer tub and the outer wall of the inner tub, the washing machine is provided with an isolation structure for preventing the cleaning particles from leaving the chamber, and includes a filtering mechanism disposed in the drainage device 4 to block the discharge of the cleaning particles during drainage.
  • a grating mechanism 8 disposed at the bottom of the inner tub to block the cleaning particles from entering the inner tub from the inner tub bottom, and/or a filter grill 9 disposed at the outer tub overflow 11 to block the washing particles from flowing out of the overflow.
  • the embodiment discloses that the washing machine isolation structure includes a filter grille, and the filter grille 9 includes a frame body 91 matched with the overflow port 11 and a blocking rib 92 disposed in the frame body, and the barrier rib 92 is divided.
  • the barrier ribs 93 are smaller than the cleaning gap 93 between the two groups of barrier ribs 92, and the gaps 94 are smaller than the cleaning particles between the two adjacent barrier ribs in the same group, and the two sets of barrier ribs 92 correspond to the outer barrel
  • the filter surface formed on the inner side is a curved surface or an inclined surface which is concave toward the other side at the position of the partition gap 93 in the direction of the barrier rib. The structure facilitates the flow of the wire wound on the rib to be rushed into the overflow pipe.
  • a further solution is that the left and right sets of barrier ribs are symmetrically arranged or the extension directions are alternately arranged.
  • the filter grille and the outer tub of the embodiment are of a plug-in type structure, and slots are provided on both sides of the overflow port, and the filter grille is inserted into the slot (not shown).
  • the filter grille and the outer tub are of a snap structure.
  • the filter grille and the outer tub of the present invention may be a split-type structure.
  • the filter grille of the present invention may also be a horizontal grille or a vertical grille or a filter. Net structure.
  • the isolation structure of the embodiment includes an outer tub cover 10 disposed at an upper portion of the outer tub 1 to block an annular opening of the chamber 5 between the inner and outer tubs, and the outer tub cover 10 is provided with a complementary cavity corresponding to the annular opening.
  • the particle number of the particles is washed into the mouth 12; further, the particle inlet can also be provided with an openable and closable cover.
  • the pulsator 3 is a self-cleaning pulsator, and includes a wave plate 31 and a water-leaching blade 32 disposed on the upper surface of the wave plate 31.
  • the top of the water-leaching blade 32 is provided with at least a water permeable hole 34 corresponding to the groove space at the bottom of the water-leaching blade; a plurality of water-permeable holes 34 are distributed along the circumferential direction of the water-leaching blade 32 near the edge of the wave plate, and the water-removing blade is adjacent to the center of the pulsator 35-end diameter
  • the lower surface of the wave plate 31 is provided with a plurality of groove spaces 33 formed by the wave plate reinforcing ribs, and at least one water permeable hole 36 is provided in each of the groove spaces 33 corresponding to the outer region of the water-leaching blades 32.
  • the force of the water flow agitation in the groove space is increased to clean the lower surface of the wave plate.
  • the lower surface of the wave plate is provided with an antibacterial and anti-mite coating.
  • the washing machine of the embodiment includes a drainage device 4 which collects cleaning particles by draining dewatering during dewatering and dehydration to prevent cleaning particles from colliding between the inner and outer barrels during dehydration. Noise is generated, and while cleaning the particles, the chips, sheets such as coins, buttons, and the like and other small things smaller than the cleaning particles can be smoothly discharged to avoid clogging.
  • the drainage device 4 includes a particle retracting chamber 41 and a drainage chamber 42 for holding cleaning particles during dehydration, floating the cleaning particles to the cleaning barrel wall in the chamber 5 by buoyancy upon entering the water.
  • the filter mechanism 7 is disposed between the particle retracting chamber 41 and the drain chamber 42. The filter mechanism 7 is capable of not only blocking the cleaning particles but also discharging the chips and the impurities smaller than the cleaning particles.
  • the filter mechanism 7 includes a plurality of retaining ribs 70 for blocking the cleaning particles.
  • the retaining ribs 70 are divided into two groups.
  • the two sets of retaining ribs 70 are between the two sets of ribs 70 having a smaller size than the cleaning granules, and the two adjacent ribs 70 of the same group.
  • the filter gap 73 which is smaller in size than the cleaning particles, has a filter surface 73 formed on the side of the particle retraction chamber 41 as a curved surface or an inclined surface which is concave toward the other side at the position of the fracture 71 (refer to FIG. 8).
  • the filtering surface 73 is a V-shaped or inverted figure-eight structure with a broken bottom.
  • the fracture 71 not only allows the swarf wound on the rib to slide to the end of the rib to pass therethrough, but also allows the passage of a button, a coin or the like to further reduce the possibility of swarf clogging.
  • the fracture 71 divides the rib 70 into two sets of oppositely disposed comb-tooth structures, and the rib extension lines L1 of the two sets of comb-tooth structures alternate in sequence.
  • the alternately extending structure of the rib extension line L1 allows the cleaning particles to block the passage of the cleaning particles even under the condition of fixed size, even if the distance between the two adjacent ribs is increased, thereby further reducing the possibility of swarf clogging.
  • the two sets of comb-tooth structures are arranged up and down or left and right, with a horizontal or vertical fracture between them, and a set of comb-tooth structure
  • the ribs of the line L1 and the other set of comb-tooth structures are alternately longitudinally alternated, and the straight lines of the ribs of the two sets of comb-tooth structures are parallel, and the spacing L of the adjacent straight lines is the same.
  • the three barrier rib ends adjacent to each other of the two comb-tooth structures constitute a particle blocking portion of the fracture in the triangular region.
  • the distance between the adjacent two retaining ribs of each comb-tooth structure can be larger or not when the cleaning particle size and the fracture size are fixed. The cleaning particles pass.
  • the drainage device 4 of the present invention is disposed under the outer tub 1, and the upper wall of the particle retracting chamber 41 is provided with a port 43 communicating with the drain port of the outer tub bottom, and the upper wall of the particle retracting chamber 41 is open from the periphery.
  • the mouth 43 is inclined obliquely upward. The tilting direction causes the cleaning particles to float toward the port as the water level rises, and then enters the chamber 5 between the inner and outer barrels through the drain port. During the drainage and dehydration process, the cleaning particles flow into the particle retracting chamber along with the drainage water flow.
  • the cleaning particles When the water enters the water, the cleaning particles float upward as the water level of the particle retracting chamber rises, and the cleaning particles move along the oblique direction, that is, It is said to move obliquely upwards, so that it is more convenient to enter the mouth and then enter the inner and outer barrels through the drain.
  • the port 43, the particle retracting chamber 41, and the drain chamber 42 are sequentially connected to form an L-shaped water outlet passage, and a drain valve 44 is installed in the drain chamber 42, and a drain valve 42 is disposed below the drain chamber 42.
  • a water outlet 45 connected to the washing machine drain pipe, and a water outlet 45 connected to the water outlet 45;
  • the opposite side of the particle storage chamber 41 and the drain chamber 42 is provided with an opening 47 communicating with the outside, on the opening 47
  • An openable and closable sealing cover 48 is provided.
  • the circumferential inner wall of the sealing cover 48 is a circular table peripheral wall structure having a larger diameter toward the inside of the granule receiving chamber.
  • the above structure can use the buoyancy of the water to completely re-deliver the cleaning particles between the inner and outer barrels to continue cleaning the wall of the barrel.
  • the inclined inner wall structure makes it easier to put the cleaning particles back again, avoiding the cleaning particles floating up.
  • the blockage caused by the failure is not simple, the structure is simple, and the production and installation cost is low.
  • the bottom 21 of the inner tub of the washing machine is equipped with a flange 81, and the flange 81 forms a water permeable passage with the hollow region 20 at the bottom of the inner tub.
  • the present invention provides a method for preventing cleaning particles from entering through the bottom of the inner tub.
  • the grill mechanism 8 of the inner tub includes a blocking cover 80 that cooperates with the flange 81 to block the cleaning particles from entering the inner tub from the inner bottom hollow region 20, and the blocking cover 80 is provided with a passage that blocks the passage of the cleaning particles.
  • the water hole 82 preferably the water hole 82 is disposed corresponding to the water permeable passage.
  • the water passing hole 82 is a straight long slit structure or a curved long slit structure. Since most of the wire scraps in the wash water are collected by the wire dust filtering structure, a small portion of the wire chips are small and dispersed in a thin strip shape, so that the water passing holes do not cause wire jams. Further, the water passing hole 82 is a funnel structure with a reduced size from the top to the bottom. This structure allows foreign matter such as coins and buttons to pass, reducing the possibility of clogging while preventing the cleaning particles from entering the inner tub.
  • the blocking cover is a hollow annular cover body, and the flange body corresponds to a hollow position for blocking the blocking cover.
  • the diameter of the flange body is d
  • the inner diameter of the hollow portion of the inner barrel bottom is D
  • the inner diameter of the blocking cover is dl.
  • the outer diameter is d2.
  • the blocking cover 80 of the present invention is a self-contained structure sandwiched or bonded between the inner tub bottom 21 and the flange 81, or the blocking cover 80 and the inner tub bottom are integrated, or the blocking cover 80 and the flange are blocked.
  • 81 is a one-piece structure, or the barrier cover, the inner tub bottom and the flange are integrated.
  • the blocking cover can prevent the cleaning particles between the inner and outer barrels from entering the inner tub, and the effect of cleaning the barrel wall due to the reduction of the cleaning particles between the inner and outer barrels is avoided.
  • a water passing hole 82 is provided.
  • the outer diameter d2 of the blocking cover is the same as the inner diameter D of the hollow portion of the inner bottom of the inner tub, and the blocking cover 80 is fitted and bonded into the hollow region 20 at the bottom of the inner tub.
  • dl 3 ⁇ 4 ⁇ d that is, the blocking cover 80 has a part of the annular cover body overlapping with the flange main body 84, and the water passing hole 82 is distributed in the outer area of the annular cover body which is not coincident with the flange main body 84, corresponding to the two adjacent fixings of the flange 81 Between feet 85.
  • the outer side of the blocking cover is provided with a snap-fit structure corresponding to the buckle structure on the outer side of the hollow portion of the bottom of the inner tub.
  • a card slot is arranged at the edge of the blocking cover, and the side of the hollow portion of the inner tub is correspondingly provided with a card slot. Fitted jaws.
  • the outer diameter d2 of the blocking cover is larger than the inner diameter D of the hollow portion 20 at the bottom of the inner tub, and is clamped to the flange 81 and the bottom of the inner tub 21 by the flange fixing leg 85. Between dl 3 ⁇ 4 ⁇ d ⁇ D ⁇ d2.
  • the inner diameter dl of the blocking cover 80 may be equal to the diameter d of the flange main body 84, and the water passing hole 82 is disposed in a region between the two adjacent fixing legs 85 of the blocking cover 80 corresponding to the flange 81.
  • the blocking cover is mounted on the bottom of the inner tub and then installed between the flange and the bottom of the inner tub by a flange mounting.
  • the outer diameter d2 of the blocking cover 80 When the outer diameter d2 of the blocking cover 80 is smaller than the inner diameter D of the hollow region 20 at the bottom of the inner tub, it satisfies dl 3 ⁇ 4 ⁇ d ⁇ d2 ⁇ D, and the difference between the inner diameter D of the inner hollow portion 20 of the inner tub and the outer diameter d2 of the blocking cover 80 satisfies the cleaning. The size of the particles cannot pass through the gap between the edge of the hollow portion at the bottom of the inner tub and the outer edge of the blocking cover.
  • the blocking cover is disposed in the hollow region 20 of the inner tub bottom, and can be connected to the bottom of the inner tub through a plurality of connecting ribs distributed at the edge, or through
  • the connecting rib is directly molded integrally with the bottom of the inner tub (not shown), or is connected to the bottom of the inner tub by a snap structure extending from the edge of the blocking cover, or the blocking cover is mounted on the flange, and the blocking cover corresponds to the position of the hollow region,
  • the flange is fixed to the bottom of the inner barrel.
  • the outer barrel bottom 21 of the present embodiment is provided with a plurality of grooves 23 surrounded by the bottom reinforcement rib 22 , and a gap between the bottom of the bottom reinforcement rib and the bottom of the outer barrel. More than the size of the cleaning particles, the size of the groove 23 formed by the bottom reinforcement rib 22 satisfies at least two cleaning particles, and generally 3-5 cleaning particles can be placed. Each groove can be used to clean the particles into the movement of the water to obtain the motion acceleration to collide with the friction to clean the inner and outer barrel bottom walls.
  • the groove 23 includes a large groove 231 formed by the outer barrel bottom bead 221 and a small groove 232 formed by the inner barrel bottom reinforcement 222 in the large groove (see FIG. 10), the outer barrel bottom
  • the height of the rib 221 is greater than the height of the inner barrel bottom rib 222, and the height of the inner barrel bottom rib is not more than 5 mm.
  • the inner tub bottom 21 adds at least one water permeable through hole 24 (see FIG. 11) corresponding to each groove, which not only reduces the dirt adhering to the inner and outer barrel bottom walls, but also increases the fluidity of the cleaning particles, thereby avoiding the cleaning particles being The card is at the bottom of the barrel.
  • the groove 23 is composed of a plurality of radial reinforcing ribs 223 and a plurality of circumferential reinforcing ribs 224, and is distributed under the annular inner tub bottom 21. Since the inner bottom 21 is circular, the distance between the two adjacent radial reinforcing ribs 223 is gradually smaller than the center of the circle. In order to ensure the sufficient space for the cleaning particles to move, two adjacent radial reinforcing ribs constituting the groove 23 are required. The angle between 223 is 12 °
  • the distance between the radially adjacent two circumferential direction reinforcing ribs 224 is 1/6-1/2 times the radius of the inner barrel bottom, and preferably, the two circumferential direction reinforcing ribs 224 near the inner barrel bottom hollow area 20. The distance between them is the largest.
  • the cleaning particles of the invention can float in the water, impact the inner and outer barrel walls with the water flow between the inner and outer barrels of the washing machine, and pass through the laundry washing process.
  • the water flow drives the cleaning particles to impact and rub the inner and outer barrel walls to clean the barrel wall between the inner and outer barrels of the washing machine.
  • the washing water is discharged from the drainage device, and the cleaning particles flow into the particle collecting chamber with the drainage; the rinsing water Or when the next washing and re-watering, the cleaning particles float out of the particle-receiving chamber to the outer tub according to the rise of the influent water level.
  • the cleaning particles can be sponge materials or rubber or plastic.
  • Foaming materials such as foamed rubber, foamed plastic, foamed composite polyurethane, preferably using an adsorbent material, make it better to clean the barrel wall, and the cleaning particles should have a certain elasticity, and the density is higher than that in the dry state. Small, water-soaked in water, cheap, can be removed directly after opening the seal through the opening of the storage chamber opening, and then reuse the new cleaning particles.
  • the cleaning particles are spherical, square, elliptical, cylindrical, tetrahedral or other irregular agglomerated particles, the number of which is 3-50, the density of these particles is smaller than water, and it has certain elasticity and Wear resistance.
  • the cleaning particles between the inner and outer barrel walls are peeled off, and are collected in the drain valve with the drain. Specifically: the washing is completed.
  • the inner barrel rotate at a low speed of 5-50 rpm, usually 10-30 rpm, so that the cleaning ball between the inner and outer barrel walls falls between the inner and outer barrels, and the cleaning particles 6
  • the water flows through the drain to enter the drain 4, and is collected by the filter mechanism 7 and collected in the particle storage chamber 41 (see Fig. 8).
  • the water that has been thrown out of the bottom of the outer tub is washed into the drain valve by using the water of the laundry, and then the inner bucket is controlled to rotate and stop at a high speed.
  • the cleaning particles between the inner and outer barrel walls are shaken off and collected in the drain valve.
  • the inner bucket After the drainage is finished, the inner bucket first washes the clothes water at a medium speed, runs for 10-60 seconds, and takes out most of the water in the clothes to wash the cleaning particles left at the bottom of the outer tub to the drain valve;
  • repeating step b is 1-6 times, preferably 2-3 times;
  • control inner bucket is replaced by the medium speed according to the movement rule of 2-5 seconds, stopping 5-15 seconds, repeating 2-8 times, and the inner bucket is continuously operated at the medium speed in the eighth step a. - 60 seconds of action of the laundry water, preferably 4-6 times.
  • a water flushing step is added between step a and step b. Specifically, as shown in FIG. 14, after the draining is completed, the set medium speed ⁇ is executed. After the water time, the water is turned on for 5-15s, and at the same time, continue to dry, increase the flushing flow, and assist the flushing cleaning particles to enter the drain valve through the drain.
  • step c If the washing amount is lower than the rated value, step c is, the water is fed for 5-15 seconds, and step a is repeated, and then step b is repeated.
  • the cleaning particles between the inner and outer barrel walls are first removed by controlling the rotation of the inner tub during the drainage process, and are collected into the drain valve with the drainage (see the seventh embodiment);
  • the inner tub is controlled to rotate at a high speed, and the cleaning particles between the inner and outer barrel walls are collected into the drain valve (refer to the eighth embodiment to the eleventh embodiment).
  • the medium speed is 200-500 rpm
  • the high speed is 500-700 rpm
  • the maximum speed is 700-1600 rpm
  • the time allocation of each action in this stage is based on the total time of the spin-drying procedure. And set.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

一种自清洁洗衣机及控制方法，洗衣机包括外桶（1）、内桶（2）、波轮（3）及排水装置（4），内桶（2）和外桶（1）之间的腔室（5）内设有清洁外桶内壁和内桶外壁的清洗颗粒（6），所述的洗衣机设有阻止清洗颗粒(6）脱离腔室（5）的隔离结构，包括设于排水装置（4）内以阻挡清洗颗粒（6）在排水时排出的过滤机构（7），和/或设于内桶底部阻挡清洗颗粒（6）由内桶底进入内桶（2）的隔栅机构（8），还包括设于外桶溢水口（11）处阻挡清洗颗粒（6）随溢水流出的过滤隔栅（9）和设于外桶上部以遮挡腔室（5）环形开口的外桶盖（10）。洗涤结束后，在排水过程和/或甩干过程中，控制内桶（2）运行不同的动作，使清洗颗粒（6）与洗涤水一起流经排水口，被排水阀（44）收集。本发明结构简单，能够有效清洗内、外桶之间的桶壁，防止清洗颗粒的数量减少。

Description

一种自清洁洗衣机及控制方法 技术领域
本发明涉及洗衣机领域， 尤其是一种在内外桶之间利用清洗颗粒随水流自动清洗内外桶之间桶壁的 自清洁洗衣机及其收集清洗颗粒的控制方法。
背景技术
现有的波轮洗衣机内、 外桶之间是一个封闭的环境， 只有水流可以通过， 由于洗衣机上述结构的局 限性和使用环境的特殊性， 因此在使用 3-5个月之后， 内桶外壁和外桶内壁上会粘附污垢， 从而滋生不 同程度的细菌， 而滋生的细菌绝大部分是对人体有害的。
随着人们生活水平的提高和对生活质量要求的提高， 洗衣机的卫生问题的解决已经显的很迫切。 相 关科研机构对洗衣机内部环境的调査情况显示，洗衣机内部污染的严重性已经越来越受到消费者的重视。 为了从根本上避免洗衣机对洗涤物的二次污垢， 并且更好地对用户的健康负责， 洗衣机内部环境的清洁 难题已经是一个迫切需要攻克的问题。
中国专利 200820183308. 4公开了一种带有桶间清洁的套桶洗衣机，它包括内桶、外桶和用于清洁内 外桶壁的多个圆形硅胶球， 利用洗衣时内桶旋转带动水的流动， 从而带动洗衣机内桶、 外桶之间的硅胶 球运动并不断碰撞内外桶的两壁以达到清洁内外桶壁的目的。
但上述洗衣机结构， 在排水后， 由于橡胶球或柔性颗粒在桶内处于自由散落状态， 高速脱水过程中 会产生很大的噪音， 同时增加洗衣机的能耗， 影响洗衣机的寿命。
此外，申请人在中国申请 201010160548. 4中公开了一种使用柔性颗粒清洗洗衣机内外桶之间的洗衣 机及方法，该洗衣机采用在洗衣机内外桶之间放置柔性颗粒，通过衣物洗涤过程中水的规律性流动带动柔 性颗粒撞击和摩擦洗衣机内外桶壁，实现洗衣机内外桶之间的清洁。
但上述洗衣机结构， 为了提高内桶底的强度， 在内桶底分布有较多的加强筋， 加强筋将内桶底外部 分割成多个小凹槽， 距离内桶中心越近的凹槽越小， 由于内桶底与外桶底之间的间隙较小， 长时间使用， 水流很难在内外桶底之间冲刷， 污物积攒较多且不容易处理， 该内桶底结构不适合用于具有清洗颗粒清 洁桶壁功能的洗衣机中， 这是因为， 首先内桶底加强筋较高， 与外桶底的间隙小， 清洗颗粒不容易进入 该内外桶底之间， 随水流进入的个别颗粒也容易被夹住或限制在凹槽内出不来， 使得内外桶间的颗粒减 少， 影响正常的桶壁清洁功能； 其次， 随水流运动进入内外桶底部间壁的清洗颗粒， 由于加强筋分布密 集，构成的凹槽较小，在较小的凹槽内不适合颗粒运动以获得足够的加速度碰撞桶壁从而清洁桶底间壁。
有鉴于此特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足， 提供一种具有在内外桶之间设有清洗颗粒以清 洁桶壁功能的自清洁洗衣机。
本发明的另一目的在于提供一种阻挡上述自清洁洗衣机清洗颗粒脱离内外桶之间的隔离结构。 本发明的再一目的在于提供该自清洁洗衣机收集清洗颗粒的控制方法。
为解决上述技术问题， 本发明采用技术方案的基本构思是： 一种自清洁洗衣机， 包括外桶、 内桶、 波轮及排水装置， 内桶和外桶之间的腔室内设有清洁外桶内壁和内桶外壁的清洗颗粒， 所述的洗衣机设 有阻止清洗颗粒脱离腔室的隔离结构， 包括设于排水装置内以阻挡清洗颗粒在排水时排出的过滤机构， 和 /或设于内桶底部阻挡清洗颗粒由内桶底进入内桶的格栅机构。
所述的隔离结构还包括设于外桶溢水口处阻挡清洗颗粒随溢水流出的过滤格栅， 所述的过滤格栅与 外桶为一体注塑结构， 或者为分体式结构， 优选为过滤格栅与外桶为插拔式结构， 溢水口两侧设有插槽， 过滤格栅插入插槽中； 或者， 过滤格栅与外桶为卡扣结构。
所述的过滤格栅包括与溢水口匹配的框体和设于框体内的阻挡筋， 阻挡筋分为两组， 两组阻挡筋之 间为尺寸小于清洗颗粒的隔断间隙， 同组两相邻阻挡筋之间为尺寸小于清洗颗粒的缝隙， 两组阻挡筋对 应外桶内侧构成的过滤面为沿阻挡筋方向在隔断间隙位置向另一侧凹的弧面或倾斜面； 优选的， 两组阻 挡筋对称设置或者延伸方向依次交替设置。 或者， 过滤格栅为横格栅或竖格栅或过滤网结构。
所述的隔离结构还包括设于外桶上部以遮挡腔室环形开口的外桶盖， 外桶盖对应环形开口设有补充 腔室内清洗颗粒数量的颗粒投入口； 优选的， 该颗粒投入口上设有一可开闭的遮挡盖。
所述的波轮为自清洁波轮， 包括波盘和设于波盘上表面的拨水叶， 拨水叶的顶部设有至少一个透水 孔， 与拨水叶底部的凹槽空间对应相通； 拨水叶靠近波盘边缘的位置沿圆周方向分布有多个透水孔， 拨 水叶靠近波轮中心一端沿径向方向分布有至少两个透水孔。
所述波盘下表面设有由波盘加强筋构成的多个凹槽空间， 对应拨水叶范围外部每个凹槽空间设有至 少一个透水孔以形成在该凹槽空间上、 下方向冲洗的水流。
在两两拨水叶之间盆式波轮边缘位置设有摩擦凸起， 至少为两个， 沿圆周方向均匀分布。
所述的波盘下表面设有抗菌防霉涂层。
本发明还提供一种排水装置， 该装置在排水和脱水时利用排脱水收集清洗颗粒以避免脱水时清洗颗 粒在内外桶之间撞击桶壁产生噪音， 且在阻挡清洗颗粒的同时能顺利地将线屑、 片状物如硬币、 纽扣等 及其它尺寸比清洗颗粒小的杂物排出， 避免堵塞。
所述的排水装置包括在脱水时盛放清洗颗粒、 在进水时依靠浮力将清洗颗粒浮出到所述腔室中清洁 桶壁的颗粒收放腔室和排水腔室， 过滤机构设于颗粒收放腔室和排水腔室之间。 该过滤机构不仅能够阻 挡清洗颗粒且能供线屑及尺寸比清洗颗粒小的杂物排出。
所述的过滤机构包括阻挡清洗颗粒的多个挡筋， 挡筋分为两组， 两组挡筋之间为尺寸小于清洗颗粒 的断口， 同组两相邻挡筋之间为尺寸小于清洗颗粒的过滤间隙， 两组挡筋对应颗粒收放腔室一侧构成的 过滤面为在断口位置向另一侧凹的弧面或倾斜面， 过滤面为底部断开的 V字形或倒八字形结构。 断口不 仅能使得缠绕在挡筋上的线屑滑动到挡筋末端从该处通过， 还能使得纽扣、 硬币等片状物通过， 进一步 减少线屑堵塞的可能性。
优选的， 断口将挡筋分成两组对立设置的梳齿结构， 两组梳齿结构的挡筋延伸线依次交替。 该挡筋 延伸线依次交替的结构使得清洗颗粒在尺寸固定的条件下， 即使增加两相邻挡筋之间的距离仍能阻挡清 洗颗粒通过， 更进一步地减少线屑堵塞的可能性。
所述的两组梳齿结构为上下或左右对立设置， 之间为横向或纵向的断口， 一组梳齿结构的挡筋的延 伸线与另一组梳齿结构的挡筋依次纵向交替， 两组梳齿结构的挡筋所在的直线平行， 两两相邻直线的间 距相同。 由两组梳齿结构的彼此相邻的三个挡筋端部构成所述断口在该三角区域的颗粒阻挡部。 经过测 试发现， 对比上下挡筋对称设置的梳齿结构， 在清洗颗粒尺寸和断口大小均固定的情况下， 每组梳齿结 构的相邻两挡筋之间的距离可以更大也不会让清洗颗粒通过。
本发明所述的排水装置设于外桶下方， 颗粒收放腔室上壁设有与外桶底的排水口相通的通口， 颗粒 收放腔室上壁自周边向通口处斜向上倾斜。 该倾斜方向使得清洗颗粒随水位上升向通口处浮动， 进而通 过排水口进入内、外桶之间的腔室内。排水和脱水过程中， 清洗颗粒随着排水水流流入颗粒收放腔室内， 再进水时， 清洗颗粒随着颗粒收放腔室水位的上升向上浮动， 清洗颗粒会沿该倾斜方向移动， 也就是说 会斜向上运动， 从而更方便的进入通口内， 然后通过排水口进入内外桶之间。
所述的颗粒收放腔室与排水腔室相反的一侧设有与外界相通的开口， 开口上设有可开闭的密封盖， 密封盖的圆周内壁为向颗粒收放腔室内部方向口径渐大的圆台周壁结构。
上述结构在洗衣机下次进水时能利用进水浮力完全将清洗颗粒重新投放到内外桶之间继续清洁桶 壁，采用的倾斜内壁结构更容易使得清洗颗粒的再次投放使用，避免了清洗颗粒上浮不顺利造成的堵塞， 结构简单、 生产安装成本低。
本发明还提供了一种防止清洗颗粒由内桶底部进入内桶的格栅机构， 所述的格栅机构包括与法兰盘 配合以阻挡清洗颗粒由内桶底中空区域进入内桶的阻挡盖，阻挡盖上设有能阻挡清洗颗粒通过的通水孔。
所述的阻挡盖为一中空的环形盖体， 法兰盘主体对应封堵该阻挡盖的中空位置， 法兰盘主体直径为 d、 内桶底部中空区域的内径为 D， 阻挡盖内径为 dl， 外径为 d2， 满足 dl ¾≡d<D¾≡d2， 或者满足 dl ¾≡d <d2<D， 且内桶底部中空区域内径 D与阻挡盖外径 d2的差值满足清洗颗粒的大小不能由内桶底部中空 区域的边缘与阻挡盖外沿之间的缝隙处通过。
所述的阻挡盖为一独立结构， 夹设或粘接于内桶底和法兰盘之间， 或者， 阻挡盖与内桶底为一体结 构， 或者阻挡盖与法兰盘为一体结构， 或者阻挡盖、 内桶底和法兰盘三者为一体结构。 阻挡盖能够防止 内外桶之间的清洗颗粒进入内桶， 避免了由于内外桶之间清洗颗粒的减少而影响桶壁清洁的效果。
所述的通水孔为直线的长条狭缝结构或弯曲的长条狭缝结构。 由于洗涤水中的线屑大部分被线屑过 滤结构收集， 少部分的线屑较小且分散为细条状， 因此， 该通水孔也不会造成线屑堵塞。 所述的通水孔为自上向下尺寸缩小的漏斗结构。 该结构能使硬币、 钮扣等异物通过， 减少了堵塞的 可能性， 同时阻止清洗颗粒由此进入内桶。
进一步的方案为， 所述的内桶底外部设有由桶底加强筋包围构成的多个凹槽， 桶底加强筋的底部与 外桶底之间的间隙大于清洗颗粒的尺寸， 桶底加强筋包围构成的凹槽大小满足至少平放 2个清洗颗粒， 优选为放置 2-5个清洗颗粒。 每个凹槽均能供清洗颗粒进入随水流运动获得运动加速度以碰撞摩擦清洁 内外桶底间壁。
所述的凹槽包括由外部桶底加强筋包围构成的大凹槽和在大凹槽内由内部桶底加强筋分割构成的小 凹槽， 外部桶底加强筋的高度大于内部桶底加强筋的高度， 内部桶底加强筋的高度不超过 5mm。 优选的， 内桶底对应每个凹槽增加至少一个透水通孔， 不仅减少内外桶底间壁粘附的污垢， 还增大了清洗颗粒的 流动性， 避免了清洗颗粒被卡在内桶底
本发明所述的清洗颗粒能浮在水中， 于洗衣机内外桶之间随水流冲击内外桶壁， 衣物洗涤过程中通 过水流带动清洗颗粒撞击和摩擦内外桶壁实现洗衣机内外桶之间桶壁的清洁， 清洁结束后， 洗涤水从排 水装置排出， 清洗颗粒随排水流入到颗粒收放腔室内盛放； 漂洗进水或下次洗涤再进水时， 清洗颗粒根 据进水水位的升高由排水口浮出颗粒收放腔室到外桶中。
在内外桶之间放置清洗颗粒以清洁内外桶壁是借鉴了内桶中洗涤物摩擦内桶使其不会粘附污垢滋生 细菌的原理； 清洗颗粒可以是海绵类的物质， 也可以是橡胶或者塑料发泡物， 如发泡橡胶， 发泡塑料、 发泡复合聚氨酯， 优选的采用有吸附性的材料， 使得其清洗桶壁效果更好， 清洗颗粒要有一定的弹性， 干燥状态下其密度比水小， 在水中具有浸透水的性质， 价格便宜， 使用多次之后可以直接通过打开储存 腔室开口的密封盖取出回收， 然后重新使用新的清洗颗粒。
清洗颗粒为球状、 方块状、 椭圆球状、 圆柱体状、 正四面体或其他不规则的团状颗粒物质， 其个数 为 3-50个， 这些颗粒密度比水小， 其具有一定弹性和耐磨性。
本发明还提供上述自清洁洗衣机在排水和脱水时利用排水收集清洗颗粒的控制方法， 该方法简单， 实现颗粒完全收集， 避免了脱水时清洗颗粒对内外桶撞击产生的噪音。
该方法为： 在排水过程和 /或甩干过程中， 控制内桶运行不同的动作， 使清洗颗粒与洗涤水一起流经 排水口， 被排水阀收集。
在排水过程中， 控制内桶以 5-50转 /分钟的低转速旋转， 使卡在内外桶壁间的清洗颗粒落入内外桶 之间， 随外桶中的水一起流经排水口， 被排水阀收集。
甩干阶段， 控制内桶执行至少一次刹车动作， 使卡在内外桶壁间的清洗颗粒落入内外桶之间， 随衣 物中甩出的水一起流经排水口， 被排水阀收集。
甩干阶段包括中速甩衣物水冲刷清洗颗粒、至少一次高速甩干和刹车、最高转速甩干至结束， 其中， 该阶段各动作的时间分配根据甩干程序的总时间而定。
在甩干阶段， 执行设定的进水时间， 增加冲水流量， 辅助清洗颗粒经过排水口进入排水阀内。 上述甩干阶段的具体步骤为：
a、 排水结束， 内桶先以一个中速甩衣物水， 运行 10-60秒， 或者按照中速转 2-5秒、 停 5_15秒的 规律反复 2-8次， 甩出衣服内大部分的水与遗落在外桶底部的颗粒一起流经排水口至排水阀内；
b、 内桶加速到高速后在 10-20秒时间内停止， 以抖落卡在内外桶壁间的颗粒；
c、 重复步骤 b为 1-6次；
d、 最高转速甩干至结束。
如果洗涤量低于设定值， 则步骤 c为， 进水 5-15秒， 并重复步骤 a， 然后重复步骤 b。
甩干阶段， 中速为 200-500rpm， 高速为 500-700rpm， 最高转速为 700-1600rpm。
采用上述技术方案后， 本发明与现有技术相比具有以下有益效果。
本发明所述的自清洁洗衣机， 内外桶之间腔室内设有清洁桶壁的清洗颗粒， 还设有阻止清洗颗粒脱 离腔室的隔离结构，包括设于排水装置内以阻挡清洗颗粒在排水时排出的过滤机构，和 /或设于内桶底部 阻挡清洗颗粒由内桶底进入内桶的格栅机构，和 /或设于外桶溢水口处阻挡清洗颗粒随溢水流出的过滤格 栅。 上述结构简单， 能够有效阻挡清洗颗粒脱离腔室。
本发明所述的排水装置针对于具有在内外桶之间带有清洗颗粒清洁内外桶壁功能的洗衣机， 能够在 排水时收集清洗颗粒以避免脱水时清洗颗粒在内外桶之间撞击桶壁产生噪音， 且在进水时能利用浮力将 清洗颗粒重新浮出颗粒收放腔室到外桶中继续清洁桶壁； 排水装置结构简单、 成本低， 且在拦截收集清 洗颗粒时不影响线屑的排放， 避免了排水堵塞和残留线屑导致的细菌滋生。
本发明所述的洗衣机内桶底外部设有供清洗颗粒进入随水流运动清洁内外桶底间壁的凹槽， 使得内 外桶之间清洗颗粒能够清洗内外桶底间壁。 该结构简单， 在内桶底注塑过程对加强筋的设计和分布进行 变化， 使得清洗颗粒在内外桶底部之间具有能够随水流运动的空间， 无需额外增加材料成本， 也没有降 低内桶强度。
本发明所述的洗衣机内桶底部安装有阻挡盖， 能够防止内、 外桶之间腔室的清洗颗粒通过内桶底部 进入内桶， 避免了由于内、 外桶之间清洗颗粒的减少而影响内桶外壁与外桶内壁的清洁效果； 阻挡盖上 分布的通水孔不会影响洗涤水在内桶与外桶之间的流通， 也不会被线屑堵塞； 该结构简单， 成本低。
本发明所述的洗衣机在洗涤过程中， 由于波轮或者内桶不停的正反向转动， 在内外桶之间的水跟内 桶中的水进行交换， 形成水流， 带动放置在内外桶之间的清洗颗粒在水中游动， 对内外桶壁进行碰撞摩 擦， 同时在水的浸泡辅助作用下对内外桶壁和内桶底部附着物进行清理， 根本上阻止了污垢的产生， 杜 绝了细菌的滋生。 用户洗衣服的同时也在进行内外桶的清洁， 随时洗涤， 随时清洗， 不留污垢， 干净放 心。 洗涤完成， 洗衣机排水时让内桶低速旋转使卡在内外桶壁间的清洗球落入内外桶之间， 清洗颗粒随 水流流经排水口进入到排水阀， 被过滤结构收集在颗粒收放腔室内， 即使残留在内桶底部的清洗颗粒也 可通过控制甩干时内桶的动作实现完全收集， 避免了甩干时清洗颗粒撞击桶壁产生噪音。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
图 1是本发明所述洗衣机外桶局部剖视图；
图 2是本发明所述外桶结构示意图；
图 3是本发明所述洗衣机外桶和内桶剖视图；
图 4是本发明所述波轮结构示意图；
图 5是本发明所述波轮下表面示意图；
图 6是本发明所述排水装置示意图；
图 7是图 6中排水装置的 A向视图；
图 8是图 7中排水装置的 B-B向断面示意图；
图 9是本发明所述的内桶底、 阻挡盖及法兰盘安装结构示意图；
图 10和图 11分别是本发明所述洗衣机内桶底不同实施方式的结构示意图；
图 12至图 15是本发明不同实施例所述的颗粒收集控制方法流程示意图。
具体实施方式
如图 1至图 11所示， 本发明所述的自清洁洗衣机， 包括外桶 1、 内桶 2、 波轮 3及排水装置 4， 内 桶 2和外桶 1之间的腔室 5内设有清洁外桶内壁和内桶外壁的清洗颗粒 6 (参阅图 3 )， 所述的洗衣机设 有阻止清洗颗粒脱离腔室的隔离结构， 包括设于排水装置 4内以阻挡清洗颗粒在排水时排出的过滤机构 7， 和 /或设于内桶底部阻挡清洗颗粒由内桶底进入内桶的格栅机构 8， 和 /或设于外桶溢水口 11处阻挡 清洗颗粒随溢水流出的过滤格栅 9。
实施例一
如图 2所示， 本实施例公开了洗衣机隔离结构包括过滤格栅， 所述的过滤格栅 9包括与溢水口 11 匹配的框体 91和设于框体内的阻挡筋 92， 阻挡筋 92分为左、 右两组， 两组阻挡筋 92之间为尺寸小于 清洗颗粒的隔断间隙 93， 同组两相邻阻挡筋之间为尺寸小于清洗颗粒的缝隙 94， 两组阻挡筋 92对应外 桶 1内侧构成的过滤面为沿阻挡筋方向在隔断间隙 93位置向另一侧凹的弧面或倾斜面，该结构利于缠绕 在阻挡筋上的线屑被搅动的水流冲入溢水管内。
进一步的方案为， 左、 右两组阻挡筋为对称设置或者延伸方向依次交替设置。
本实施例所述的过滤格栅与外桶之间为插拔式结构，溢水口两侧设有插槽，过滤格栅插入插槽中（图 中未示出） 。 或者， 过滤格栅与外桶为卡扣结构。 上述过滤格栅与外桶之间均为分体式结构， 本发明所述的过滤格栅和外桶也可为一体注塑结构； 本 发明过滤格栅还可为横格栅或竖格栅或过滤网结构。
实施例二
如图 3所示， 本实施例所述的隔离结构包括设于外桶 1上部以遮挡内外桶之间腔室 5环形开口的外 桶盖 10， 外桶盖 10对应环形开口设有补充腔室内清洗颗粒数量的颗粒投入口 12 ; 进一步的方案为， 该 颗粒投入口上还可以设有一可开闭的遮挡盖。
实施例三
如图 4和图 5所示， 本实施例所述的波轮 3为自清洁波轮， 包括波盘 31和设于波盘 31上表面的拨 水叶 32， 拨水叶 32的顶部设有至少一个透水孔 34， 与拨水叶底部的凹槽空间对应相通； 拨水叶 32靠近 波盘边缘的位置沿圆周方向分布有多个透水孔 34， 拨水叶靠近波轮中心 35—端沿径向方向分布有至少 两个透水孔 34 (参阅图 4 ) 。
如图 5所示， 所述波盘 31下表面设有由波盘加强筋构成的多个凹槽空间 33， 对应拨水叶 32范围外 部区域每个凹槽空间 33设有至少一个透水孔 36以形成在该凹槽空间上、 下方向冲洗的水流， 波轮转动 的过程中， 增大凹槽空间内水流搅动的力度以清洗波盘下表面。
进一步的方案为， 所述的波盘下表面设有抗菌防霉涂层。
实施例四
如图 6至图 8所示， 本实施例所述的洗衣机包括一种排水装置 4， 该装置在排水和脱水时利用排脱 水收集清洗颗粒以避免脱水时清洗颗粒在内外桶之间撞击桶壁产生噪音， 且在阻挡清洗颗粒的同时能顺 利地将线屑、 片状物如硬币、 纽扣等及其它尺寸比清洗颗粒小的杂物排出， 避免堵塞。
所述的排水装置 4包括在脱水时盛放清洗颗粒、 在进水时依靠浮力将清洗颗粒浮出到所述腔室 5中 清洁桶壁的颗粒收放腔室 41和排水腔室 42，所述过滤机构 7设于颗粒收放腔室 41和排水腔室 42之间。 该过滤机构 7不仅能够阻挡清洗颗粒且能供线屑及尺寸比清洗颗粒小的杂物排出。
所述的过滤机构 7包括阻挡清洗颗粒的多个挡筋 70， 挡筋 70分为两组， 两组挡筋 70之间为尺寸小 于清洗颗粒的断口 71， 同组两相邻挡筋 70之间为尺寸小于清洗颗粒的过滤间隙 72， 两组挡筋对应颗粒 收放腔室 41一侧构成的过滤面 73为在断口 71位置向另一侧凹的弧面或倾斜面（参阅图 8 )， 过滤面 73 为底部断开的 V字形或倒八字形结构。断口 71不仅能使得缠绕在挡筋上的线屑滑动到挡筋末端从该处通 过， 还能使得纽扣、 硬币等片状物通过， 进一步减少线屑堵塞的可能性。
进一步的方案为， 如图 7所示， 所述的断口 71将挡筋 70分成两组对立设置的梳齿结构， 两组梳齿 结构的挡筋延伸线 L1依次交替。 该挡筋延伸线 L1依次交替的结构使得清洗颗粒在尺寸固定的条件下， 即使增加两相邻挡筋之间的距离仍能阻挡清洗颗粒通过， 更进一步地减少线屑堵塞的可能性。
所述的两组梳齿结构为上下或左右对立设置， 之间为横向或纵向的断口， 一组梳齿结构的挡筋延伸 线 L1与另一组梳齿结构的挡筋依次纵向交替，两组梳齿结构的挡筋所在的直线平行，两两相邻直线的间 距 L相同。 由两组梳齿结构的彼此相邻的三个挡筋端部构成所述断口在该三角区域的颗粒阻挡部。 经过 测试发现， 对比上下挡筋对称设置的梳齿结构， 在清洗颗粒尺寸和断口大小均固定的情况下， 每组梳齿 结构的相邻两挡筋之间的距离可以更大也不会让清洗颗粒通过。
本发明所述的排水装置 4设于外桶 1下方，颗粒收放腔室 41上壁设有与外桶底的排水口相通的通口 43， 颗粒收放腔室 41上壁自周边向通口 43处斜向上倾斜。 该倾斜方向使得清洗颗粒随水位上升向通口 处浮动， 进而通过排水口进入内、 外桶之间的腔室 5内。 排水和脱水过程中， 清洗颗粒随着排水水流流 入颗粒收放腔室内， 再进水时， 清洗颗粒随着颗粒收放腔室水位的上升向上浮动， 清洗颗粒会沿该倾斜 方向移动， 也就是说会斜向上运动， 从而更方便的进入通口内， 然后通过排水口进入内外桶之间。
其中， 如图 8所示， 通口 43、 颗粒收放腔室 41、 排水腔室 42依次相通构成 L形出水通路， 排水腔 室 42内安装有排水阀 44， 排水腔室 42下方设有与洗衣机排水管连接的出水口 45， 出水口 45上设有相 通的溢水管连接口 46 ; 颗粒收放腔室 41与排水腔室 42相反的一侧设有与外界相通的开口 47， 开口 47 上设有可开闭的密封盖 48，密封盖 48的圆周内壁为向颗粒收放腔室内部方向口径渐大的圆台周壁结构。
上述结构在洗衣机下次进水时能利用进水浮力完全将清洗颗粒重新投放到内外桶之间继续清洁桶 壁，采用的倾斜内壁结构更容易使得清洗颗粒的再次投放使用，避免了清洗颗粒上浮不顺利造成的堵塞， 结构简单、 生产安装成本低。
实施例五
如图 9所示， 一般的， 洗衣机内桶底部 21安装有法兰盘 81， 法兰盘 81与内桶底部的中空区域 20 形成透水通道， 本发明提供了一种防止清洗颗粒由内桶底部透水通道进入内桶的格栅机构 8， 所述的格 栅机构包括与法兰盘 81配合以阻挡清洗颗粒由内桶底中空区域 20进入内桶的阻挡盖 80， 阻挡盖 80上 设有能阻挡清洗颗粒通过的通水孔 82， 优选该通水孔 82对应透水通道设置。
所述的通水孔 82为直线的长条狭缝结构或弯曲的长条狭缝结构。由于洗涤水中的线屑大部分被线屑 过滤结构收集， 少部分的线屑较小且分散为细条状， 因此， 该通水孔也不会造成线屑堵塞。 进一步的， 所述的通水孔 82为自上向下尺寸缩小的漏斗结构。该结构能使硬币、钮扣等异物通过， 减少了堵塞的可 能性， 同时阻止清洗颗粒由此进入内桶。
所述的阻挡盖为一中空的环形盖体， 法兰盘主体对应封堵该阻挡盖的中空位置， 法兰盘主体直径为 d、 内桶底部中空区域的内径为 D， 阻挡盖内径为 dl， 外径为 d2。
本发明所述的阻挡盖 80为一独立结构， 夹设或粘接于内桶底 21和法兰盘 81之间， 或者， 阻挡盖 80与内桶底为一体结构， 或者阻挡盖 80与法兰盘 81为一体结构， 或者阻挡盖、 内桶底和法兰盘三者为 一体结构。 阻挡盖能够防止内外桶之间的清洗颗粒进入内桶， 避免了由于内外桶之间清洗颗粒的减少而 影响桶壁清洁的效果。 当阻挡盖 80与内桶底部 21—体注塑成型， 即满足 dl ¾≡d<D = d2， 即阻挡盖 80在以直径 d的中心 区域外对应法兰盘 81的两相邻固定脚 85之间设置通水孔 82。
当所述的阻挡盖 80为一独立的盖体结构， 阻挡盖外径 d2与内桶底部中空区域内径 D相同， 阻挡盖 80嵌合粘接在内桶底部中空区域 20内， 此时， dl ¾≡d， 即阻挡盖 80有部分环形盖体与法兰盘主体 84重 合， 通水孔 82分布在与法兰盘主体 84非重合的环形盖体外部区域， 对应法兰盘 81的两相邻固定脚 85 之间。 再或者， 在阻挡盖外侧设有卡合结构卡扣在内桶底部中空区域外侧对应的卡扣结构上， 例如， 在 阻挡盖边缘设置卡槽， 在内桶底部中空区域侧边对应设有与卡槽配合的卡爪。
当所述的阻挡盖 80为一独立的盖体结构， 该阻挡盖的外径 d2大于内桶底部中空区域 20的内径 D， 通过法兰盘固定脚 85夹设于法兰盘 81与内桶底部 21之间， 满足 dl ¾≡d<D<d2。 阻挡盖 80内径 dl可 以等于法兰盘主体 84直径 d，通水孔 82设置在阻挡盖 80对应法兰盘 81的两相邻固定脚 85之间的区域 内。 或者进一步的， 所述的阻挡盖安装在内桶底上再通过法兰盘安装夹设于法兰盘与内桶底之间。
当所述阻挡盖 80的外径 d2小于内桶底部中空区域 20的内径 D，满足 dl ¾≡d<d2<D，且内桶底部中 空区域 20内径 D与阻挡盖 80外径 d2的差值满足清洗颗粒的大小不能由内桶底部中空区域的边缘与阻挡 盖外沿之间的缝隙处通过，该阻挡盖设于内桶底中空区域 20内，可通过边缘分布的若干连接筋与内桶底 部连接， 或通过连接筋与内桶底部直接一体注塑 （图中未示出） ， 再或者通过阻挡盖边缘延伸的卡合结 构与内桶底部连接， 或者阻挡盖安装在法兰盘上， 阻挡盖对应中空区域位置， 将法兰盘与内桶底部固定。
实施例六
如图 10和图 11所示，本实施例所述的内桶底 21外部设有由桶底加强筋 22包围构成的多个凹槽 23， 桶底加强筋的底部与外桶底之间的间隙大于清洗颗粒的尺寸， 桶底加强筋 22包围构成的凹槽 23大小满 足至少平放 2个清洗颗粒， 一般能保证放置 3-5个清洗颗粒即可。 每个凹槽均能供清洗颗粒进入随水流 运动获得运动加速度以碰撞摩擦清洁内外桶底间壁。
所述的凹槽 23包括由外部桶底加强筋 221包围构成的大凹槽 231和在大凹槽内由内部桶底加强筋 222分割构成的小凹槽 232 (参阅图 10 ) ， 外部桶底加强筋 221的高度大于内部桶底加强筋 222的高度， 内部桶底加强筋的高度不超过 5mm。优选的， 内桶底 21对应每个凹槽增加至少一个透水通孔 24 (参阅图 11 )， 不仅减少内外桶底间壁粘附的污垢， 还增大了清洗颗粒的流动性， 避免了清洗颗粒被卡在内桶底。
如图 11所示， 所述的凹槽 23由多段径向加强筋 223和多段圆周方向加强筋 224包围构成， 分布在 环形的内桶底 21下方。 由于内桶底 21为圆形， 两相邻径向加强筋 223之间的间距靠近圆心渐小， 为了 保证清洗颗粒足够运动的空间大小， 要求构成所述凹槽 23的两相邻径向加强筋 223之间的夹角为 12 °
-30° ， 沿径向相邻的两圆周方向加强筋 224之间的间距为内桶底半径的 1/6-1/2倍， 优选为， 靠近内桶 底中空区域 20的两圆周方向加强筋 224之间的间距最大。
本发明所述的清洗颗粒能浮在水中， 于洗衣机内外桶之间随水流冲击内外桶壁， 衣物洗涤过程中通 过水流带动清洗颗粒撞击和摩擦内外桶壁实现洗衣机内外桶之间桶壁的清洁， 清洁结束后， 洗涤水从排 水装置排出， 清洗颗粒随排水流入到颗粒收放腔室内盛放； 漂洗进水或下次洗涤再进水时， 清洗颗粒根 据进水水位的升高由排水口浮出颗粒收放腔室到外桶中。
在内外桶之间放置清洗颗粒以清洁内外桶壁是借鉴了内桶中洗涤物摩擦内桶使其不会粘附污垢滋生 细菌的原理； 清洗颗粒可以是海绵类的物质， 也可以是橡胶或者塑料发泡物， 如发泡橡胶， 发泡塑料、 发泡复合聚氨酯， 优选的采用有吸附性的材料， 使得其清洗桶壁效果更好， 清洗颗粒要有一定的弹性， 干燥状态下其密度比水小， 在水中具有浸透水的性质， 价格便宜， 使用多次之后可以直接通过打开储存 腔室开口的密封盖取出回收， 然后重新使用新的清洗颗粒。
清洗颗粒为球状、 方块状、 椭圆球状、 圆柱体状、 正四面体或其他不规则的团状颗粒物质， 其个数 为 3-50个， 这些颗粒密度比水小， 其具有一定弹性和耐磨性。
实施例七
如图 12所示， 本实施例通过在排水过程中， 控制内桶的转动将卡在内外桶壁间的清洗颗粒脱落， 随 排水收集到排水阀中。 具体为： 洗涤完成， 排水时让内桶以 5-50转 /分钟的低速旋转， 一般为 10-30转 / 分钟， 使卡在内外桶壁间的清洗球落入内外桶之间， 清洗颗粒 6随水流流经排水口进入排水装置 4， 被 过滤机构 7过滤收集在颗粒收放腔室 41内 （参阅图 8 ) 。
实施例八
如图 13所示， 本实施例是在甩干阶段， 通过先中速甩干， 利用甩出的衣物的水冲刷遗落在外桶底部 的颗粒至排水阀内， 然后控制内桶高速转动和停止， 将卡在内外桶壁间的清洗颗粒抖落， 收集到排水阀 中。 具体步骤为：
a、 排水结束， 内桶先以一个中速甩衣物水， 运行 10-60秒， 甩出衣服内大部分的水， 以冲刷遗落在 外桶底部的清洗颗粒至排水阀内；
b、 内桶加速到高速后在 10-20秒时间内停止， 以抖落卡在内外桶壁间的颗粒；
c、 重复步骤 b为 1-6次， 优选为 2-3次；
d、 最高转速甩干至结束。
实施例九
本实施例与实施例八的区别在于：控制内桶以中速按照转 2-5秒、停 5-15秒反复 2-8次的运动规律 替换实施例八步骤 a中内桶以中速连续运行 10-60秒甩衣物水的动作， 优选为 4-6次。
实施例十
本实施例与实施例八或实施例九的区别在于：在步骤 a和步骤 b之间增加一进水冲刷步骤，具体为， 如图 14所示， 排水结束后， 执行设定的中速甩水时间后开启进水 5-15s， 同时继续甩干， 增加冲水流量， 辅助冲刷清洗颗粒经过排水口进入排水阀内。 实施例十一
本实施例在实施例八或实施例九的基础上增加如下步骤： 如果洗涤量低于额定值， 则步骤 c为， 进 水 5-15秒， 并重复步骤 a， 然后重复步骤 b。
实施例十二
如图 15所示， 本实施例中， 先通过排水过程中控制内桶转动将卡在内外桶壁间的清洗颗粒脱落， 随 排水收集到排水阀中 （参阅实施例七） ； 再通过甩干阶段控制内桶中、 高速转动， 将卡在内外桶壁间的 清洗颗粒收集到排水阀中 （参阅实施例八至实施例十一） 。
在上述实施例八至实施例十二的甩干阶段中， 中速为 200-500rpm， 高速为 500-700rpm， 最高转速为 700-1600rpm； 该阶段各动作的时间分配根据甩干程序的总时间而定。
上述实施例中的实施方案可以进一步组合或者替换， 且实施例仅仅是对本发明的优选实施例进行描 述， 并非对本发明的构思和范围进行限定， 在不脱离本发明设计思想的前提下， 本领域中专业技术人员 对本发明的技术方案作出的各种变化和改进， 均属于本发明的保护范围。

Claims

WO 2013/181901 权 利 要 求 书 PCT/CN2012/084714
1、 一种自清洁洗衣机， 包括外桶、 内桶、波轮及排水装置， 内桶和外桶之间的腔室内设有清洁外桶 内壁和内桶外壁的清洗颗粒， 其特征在于： 所述的洗衣机设有阻止清洗颗粒脱离腔室的隔离结构， 包括 设于排水装置内以阻挡清洗颗粒在排水时排出的过滤机构，和 /或设于内桶底部阻挡清洗颗粒由内桶底进 入内桶的格栅机构。
2、根据权利要求 1所述的一种自清洁洗衣机， 其特征在于： 所述的排水装置包括在脱水时盛放清洗 颗粒、 在进水时依靠浮力将清洗颗粒浮出到所述腔室中清洁桶壁的颗粒收放腔室和排水腔室， 过滤机构 设于颗粒收放腔室和排水腔室之间。
3、根据权利要求 2所述的一种自清洁洗衣机， 其特征在于： 所述的过滤机构包括阻挡清洗颗粒的多 个挡筋， 挡筋分为两组， 两组挡筋之间为尺寸小于清洗颗粒的断口， 两组挡筋延伸线依次交替， 同组两 相邻挡筋之间为尺寸小于清洗颗粒的过滤间隙。
4、根据权利要求 3所述的一种自清洁洗衣机，其特征在于：所述的两组挡筋为上下或左右对立设置， 之间为横向或纵向的断口， 一组挡筋的延伸线与另一组挡筋依次纵向交替， 两组挡筋所在的直线平行， 两两相邻直线的间距相同。
5、根据权利要求 3或 4所述的一种自清洁洗衣机， 其特征在于： 所述的两组挡筋对应颗粒收放腔室 一侧构成的过滤面为在断口位置向另一侧凹的弧面或倾斜面， 过滤面为底部断开的 V字形或倒八字形结 构。
6、根据权利要求 1所述的一种自清洁洗衣机， 其特征在于： 所述的格栅机构包括与法兰盘配合以阻 挡清洗颗粒由内桶底中空区域进入内桶的阻挡盖， 阻挡盖上设有能阻挡清洗颗粒通过的通水孔。
7、根据权利要求 6所述的一种自清洁洗衣机， 其特征在于： 所述的阻挡盖为一中空的环形盖体， 法 兰盘主体对应封堵该阻挡盖的中空位置， 法兰盘主体直径为 d、 内桶底部中空区域的内径为 D， 阻挡盖内 径为 dl， 外径为 d2， 满足 dl ¾≡d<D¾≡d2， 或者满足 dl ¾≡d<d2<D， 且内桶底部中空区域内径 D与阻挡 盖外径 d2的差值满足清洗颗粒的大小不能由内桶底部中空区域的边缘与阻挡盖外沿之间的缝隙处通过。
8、根据权利要求 6或 7所述的一种自清洁洗衣机， 其特征在于： 所述的阻挡盖为一独立结构， 夹设 或粘接于内桶底和法兰盘之间， 或者， 阻挡盖与内桶底为一体结构， 或者阻挡盖与法兰盘为一体结构， 或者阻挡盖、 内桶底和法兰盘三者为一体结构。
9、根据权利要求 1所述的一种自清洁洗衣机， 其特征在于： 于洗衣机内桶底外部设有供清洗颗粒进 入随水流运动获得运动加速度以碰撞摩擦清洁内外桶底间壁的颗粒运动空间， 该颗粒运动空间为由内桶 底外部的加强筋构成的多个凹槽， 加强筋与外桶底之间的间隙满足清洗颗粒随水流进入， 凹槽的大小满 足至少放置 2个清洗颗粒。
10、 根据权利要求 9所述的一种自清洁洗衣机， 其特征在于： 所述凹槽通过减少加强筋个数以加大 凹槽的体积， 或者降低两加强筋之间的加强筋高度以满足该降低高度的加强筋不影响清洗颗粒运动。 WO 2013/181901 权 利 要 求 书 PCT/CN2012/084714
11、 根据权利要求 1所述的一种自清洁洗衣机， 其特征在于： 所述的隔离结构还包括设于外桶溢水 口处阻挡清洗颗粒随溢水流出的过滤格栅，所述的过滤格栅与外桶为一体注塑结构，或者为分体式结构， 优选为过滤格栅与外桶为插拔式结构， 溢水口两侧设有插槽， 过滤格栅插入插槽中； 或者， 过滤格栅与 外桶为卡扣结构。
12、根据权利要求 11所述的一种自清洁洗衣机， 其特征在于： 所述的过滤格栅包括与溢水口匹配的 框体和设于框体内的阻挡筋， 阻挡筋分为两组， 两组阻挡筋之间为尺寸小于清洗颗粒的隔断间隙， 同组 两相邻阻挡筋之间为尺寸小于清洗颗粒的缝隙， 两组阻挡筋对应外桶内侧构成的过滤面为沿阻挡筋方向 在隔断间隙位置向另一侧凹的弧面或倾斜面。
13、 根据权利要求 1所述的一种自清洁洗衣机， 其特征在于： 所述的隔离结构还包括设于外桶上部 以遮挡腔室环形开口的外桶盖， 外桶盖对应环形开口设有补充腔室内清洗颗粒数量的颗粒投入口； 优选 的， 该颗粒投入口上设有一可开闭的遮挡盖。
14、 根据权利要求 1所述的一种自清洁洗衣机， 其特征在于： 所述的波轮为自清洁波轮， 包括波盘 和设于波盘上表面的拨水叶， 拨水叶的顶部设有至少一个透水孔， 与拨水叶底部对应相通； 优选的， 拨 水叶靠近波盘边缘的位置沿圆周方向分布有多个透水孔， 拨水叶靠近波轮中心一端沿径向方向分布有至 少两个透水孔。
15、根据权利要求 14所述的一种自清洁洗衣机， 其特征在于： 所述波盘下表面设有由波盘加强筋构 成的多个凹槽空间， 对应拨水叶范围外部的每个凹槽空间设有至少一个透水孔以形成在该凹槽空间上、 下方向冲洗的水流。
16、一种如权利要求 1-15任一所述自清洁洗衣机的控制方法，该洗衣机工作时清洗颗粒随水流运动 清洁内、 外桶之间的桶壁， 其特征在于： 在排水过程和 /或甩干过程中， 控制内桶运行不同的动作， 使清 洗颗粒与洗涤水一起流经排水口， 被排水阀收集。
17、 根据权利要求 16所述的控制方法， 其特征在于： 在排水过程中， 内桶转动， 使卡在内外桶壁间 的清洗颗粒落入内、 外桶之间腔室内， 随外桶中的水一起流经排水口， 被排水阀收集。
18、根据权利要求 17所述的控制方法， 其特征在于： 在排水过程中， 内桶以 5-50转 /分钟的低转速 旋转。
19、 根据权利要求 16或 17所述的控制方法， 其特征在于： 甩干阶段， 控制内桶执行至少一次刹车 动作， 使卡在内外桶壁间的清洗颗粒落入内外桶之间， 随衣物中甩出的水一起流经排水口， 被排水阀收 集。
20、根据权利要求 19所述的控制方法， 其特征在于： 甩干阶段包括中速甩衣物水冲刷清洗颗粒、 至 少一次高速甩干和刹车、 最高转速甩干至结束， 其中， 该阶段各动作的时间分配根据甩干程序的总时间 而定。 WO 2013/181901 权 利 要 求 书 PCT/CN2012/084714
21、 根据权利要求 20所述的控制方法， 其特征在于： 在甩干阶段， 执行设定的进水时间， 增加冲水 流量， 辅助清洗颗粒经过排水口进入排水阀内。
22、 根据权利要求 19所述的控制方法， 其特征在于： 甩干阶段具体步骤为：
a、 排水结束， 内桶先以一个中速甩衣物水， 运行 10-60秒， 或者按照中速转 2-5秒、 停 5_15秒的 规律反复 2-8次， 甩出衣服内大部分的水， 以冲刷遗落在外桶底部的颗粒至排水阀内；
b、 内桶加速到高速后在 10-20秒时间内停止， 以抖落卡在内桶底的颗粒；
c、 重复步骤 b为 1-6次；
d、 最高转速甩干至结束。
23、 根据权利要求 22所述的控制方法， 其特征在于： 如果洗涤衣服的量低于设定值， 则步骤 c为， 进水 5-15秒， 并重复步骤 a， 然后重复步骤 b。
24、 根据权利要求 20-23任一所述的控制方法， 其特征在于： 甩干阶段， 中速为 200-500rpm， 高速 为 500- 700rpm， 最高转速为 700- 1600rpm。
PCT/CN2012/084714 2012-06-08 2012-11-16 一种自清洁洗衣机及控制方法 WO2013181901A1 (zh)

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