WO2020020268A1 - 立式洗衣机 - Google Patents

立式洗衣机 Download PDF

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Publication number
WO2020020268A1
WO2020020268A1 PCT/CN2019/097620 CN2019097620W WO2020020268A1 WO 2020020268 A1 WO2020020268 A1 WO 2020020268A1 CN 2019097620 W CN2019097620 W CN 2019097620W WO 2020020268 A1 WO2020020268 A1 WO 2020020268A1
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WO
WIPO (PCT)
Prior art keywords
water supply
washing
washing tub
water
laundry
Prior art date
Application number
PCT/CN2019/097620
Other languages
English (en)
French (fr)
Inventor
铃木肇
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
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
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社 filed Critical 青岛海尔洗衣机有限公司
Priority to CN201980044674.2A priority Critical patent/CN112424411A/zh
Publication of WO2020020268A1 publication Critical patent/WO2020020268A1/zh

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    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention relates to a vertical washing machine.
  • the washing machine described in the following Patent Document 1 is a vertical washing machine, which includes a box-shaped box, a bottomed cylindrical outer tub housed in the box body, and a bottomed machine housed in the outer bucket and containing laundry
  • An opening and an outer door that opens and closes the opening are provided on the upper surface of the box.
  • the upper end of the outer tub is provided with an inlet and outlet that opposes the opening of the box from below and an internal door that opens and closes the inlet and outlet.
  • the upper end of the dehydration bucket is provided with an inlet / outlet opposite to the inlet / outlet of the outer barrel from below.
  • the entrance and exit of the outer bucket and the dehydration bucket are opened and closed together by the inner door.
  • the laundry in the dehydration tub is stirred by the rotating rotor.
  • Patent Document 1 Japanese Patent No. 6350874
  • the present invention was completed in this background, and an object thereof is to provide a vertical washing machine which can prevent laundry from flying out and increase the capacity of the laundry.
  • the invention relates to a vertical washing machine, comprising: an outer tub capable of storing water; a driving unit generating driving force; a washing tub arranged in the outer tub to receive laundry; the washing tub is always open at its upper end In the state of washing, the entrance and exit of the laundry are formed, and a bottom wall is provided at the lower end thereof.
  • the washing tub rotates in response to the driving force of the driving unit; a rotating wing is arranged on the bottom wall in the washing tub to receive A driving force of the driving unit rotates; a water supply nozzle facing the entrance and exit; a water supply unit supplying water into the washing tub at least from the water supply nozzle; and a control unit controlling the driving unit and the water supply unit,
  • the control unit performs a water supply process and a washing process, and the water supply process includes: a spraying process, through the water supply unit, spraying water from the water supply nozzle to the laundry on the inlet and outlet side in the washing tub; the tub rotates Processing, rotating the washing tub by the driving unit; and final processing, after the spraying processing and the tub rotating processing, by the water supply unit to Water is stored in the washing tub, and the washing process is a process in which, after the water supply process, the rotary wing is rotated by the driving unit in a state in which water is stored in the washing tub, thereby agitating the rotating wing.
  • the present invention is characterized in that the water injection nozzle is provided with a side surface portion on the rotation axis side of the washing tub and a lower surface portion of the water supply nozzle in the water supply nozzle.
  • the present invention is characterized in that the vertical washing machine further includes a detection unit, and the detection unit detects a load of the laundry in the washing tub before the water supply process, and the detection unit detects that the load is less than a predetermined value. In the case of a value of the load amount, the control unit omits the spraying process and the bucket rotation process in the water supply process.
  • the entrance / exit formed at the upper end of the washing tub for accommodating laundry is always open.
  • the washing tub can accommodate laundry to the upper end of the entrance and exit.
  • the vertical washing machine can maintain the external dimensions and increase the capacity of the laundry.
  • the water spray nozzle is provided in the water supply nozzle on the side surface portion on the rotation axis side of the washing tub and the lower surface portion of the water supply nozzle. Therefore, the water sprayed from the spray nozzle is easily poured into the washing tub and is located at the entrance and exit. On the side of the laundry. Accordingly, in the spraying process, the laundry on the inlet and outlet sides in the washing tub can be effectively wetted by the water sprayed from the spray port of the water supply nozzle.
  • the spraying process and the bucket rotation process are omitted in the water supply process.
  • the spraying process and the bucket rotation process are performed during the water supply process, so that the laundry in the washing tub can be prevented from flying out of the entrance and exit.
  • FIG. 1 is a schematic vertical sectional right side view of a vertical washing machine according to an embodiment of the present invention.
  • FIG. 2 is a bottom view of a water supply nozzle included in the vertical washing machine.
  • Fig. 3 is a front view of a water supply nozzle.
  • FIG. 4 is a schematic plan view of a washing tub and a water supply nozzle included in the vertical washing machine.
  • FIG. 5 is a block diagram showing an electrical configuration of the vertical washing machine.
  • FIG. 6 is a flowchart showing a washing operation performed in the vertical washing machine.
  • FIG. 7 is a flowchart showing a water supply process during a washing operation.
  • FIG. 8 is a schematic vertical sectional right side view of the vertical washing machine in a washing operation.
  • FIG. 1 is a schematic vertical sectional right side view of a vertical washing machine 1 according to an embodiment of the present invention.
  • the up-down direction in FIG. 1 is referred to as the up-down direction Z of the vertical washing machine 1
  • the left-right direction in FIG. 1 is referred to as the front-back direction Y of the vertical washing machine 1
  • Left-right direction X of the washing machine 1 1.
  • the upper side is referred to as an upper side Z1
  • the lower side is referred to as a lower side Z2.
  • the front-rear directions Y the left side in FIG.
  • FIG. 1 is referred to as a front side Y1, and the right side in FIG. 1 is referred to as a rear side Y2.
  • the back side of the paper surface of FIG. 1 is called the left side X1
  • the front side of the paper surface of FIG. 1 is called the right side X2.
  • the vertical washing machine 1 includes a cabinet 2, an outer tub 3, a washing tub 4, a rotary wing 5, a motor 6 as an example of a driving unit, a transmission mechanism 7, a water guide cover 8, a drainage channel 9, a drainage valve 10, and a water supply channel. 11.
  • the case 2 is made of metal, for example, and is formed in a box shape.
  • a portion of the box body 2 that constitutes an upper end portion of the upper surface 2A and the rear surface 2B is an upper panel, and may be detachably attached to the box body 2.
  • An opening portion 14 communicating with the inside and the outside of the box body 2 is formed in a front region of the upper surface 2A.
  • the casing 2 is provided with a cylindrical portion 15 that covers the opening portion 14 and extends to the lower side Z2.
  • the internal space of the tube portion 15 is a part of the opening portion 14.
  • a door 16 that opens and closes the opening 14 is provided on the upper surface 2A.
  • a display operation portion 17 including a liquid crystal operation panel and the like is provided in a region around the opening portion 14 in the upper surface 2A.
  • the user of the vertical washing machine 1 can freely select the operating conditions of the washing operation performed by the vertical washing machine 1 by operating the display operation unit 17, or instruct the vertical washing machine 1 to start or stop the washing operation.
  • the display operation unit 17 displays information for the user.
  • the outer tub 3 is made of resin, for example, and is formed in a bottomed cylindrical shape.
  • the outer tub 3 is disposed in the box body 2 and is elastically supported by the box body 2 via a suspension rod (not shown).
  • the outer tub 3 has a generally cylindrical peripheral wall 3A arranged along the vertical direction Z; a bottom wall 3B that blocks the hollow portion of the peripheral wall 3A from the lower side Z2; and an annular annular wall 3C that surrounds the peripheral wall 3A The upper end edge of the edge is hemmed and protrudes toward the center side of the circumferential wall 3A.
  • an entrance / exit 18 communicating with the hollow portion of the circumferential wall 3A from the upper side Z1 is formed on the inner side of the annular wall 3C.
  • the entrance / exit 18 faces the opening portion 14 of the box 2 from the lower side Z2 and is in a state of communicating with the opening portion 14.
  • the annular wall 3C is not provided with an inner door that opens and closes the entrance and exit 18, and the entrance and exit 18 is always open.
  • the bottom wall 3B is formed in a circular plate shape extending substantially horizontally, and a through hole 3D penetrating the bottom wall 3B is formed at the center position of the bottom wall 3B. Water can be stored in the outer tub 3.
  • the washing tub 4 is made of metal, for example, and has a bottomed cylindrical shape that is smaller than the outer tub 3, and is arranged coaxially in the outer tub 3.
  • the washing tub 4 stored in the outer tub 3 can rotate around a rotation axis J extending in the up-down direction Z through the center of the washing tub 4.
  • the rotation axis J is also the center of the outer tub 3, and the rotation direction of the washing tub 4 coincides with the circumferential direction P around the rotation axis J.
  • the radial direction centered on the rotation axis J is referred to as a radial direction R.
  • the side of the rotation axis J is referred to as a radial inner side R1
  • the side far from the rotation axis J is referred to as a radial outer side. R2.
  • the inside of the washing tub 4 can accommodate laundry Q.
  • the washing tub 4 has a substantially cylindrical circumferential wall 4A arranged along the vertical direction Z, and a bottom wall 4B provided at the lower end of the washing tub 4 and blocking the hollow portion of the circumferential wall 4A from the lower side Z2.
  • the inner peripheral surface of the circumferential wall 4A of the washing tub 4 is the inner peripheral surface of the washing tub 4.
  • An upper end portion of the inner peripheral surface of the circumferential wall 4A is fitted with an annular balance ring 19 extending in the circumferential direction P.
  • the balance ring 19 is, for example, a hollow body made of resin.
  • a liquid for achieving the rotational balance of the washing tub 4 is housed in a free-flowing manner.
  • an annular rib 20 protruding toward the upper side Z1 and extending in the circumferential direction P is provided.
  • the upper end portion of the rib 20 is inserted into the entrance / exit 18 of the outer tub 3, and the upper end of the rib 20 is in a state protruding from the entrance / exit 18 toward the upper side Z1.
  • the balance ring 19 and the rib 20 constitute the upper end of the washing tub 4.
  • the area surrounded by the balance ring 19 and the rib 20 is an entrance / exit 21 formed at the upper end of the washing tub 4.
  • the entrance / exit 21 is opposed to the opening portion 14 of the box 2 from the lower side Z2 and is in a state of communicating with the opening portion 14.
  • the upper end of the entrance / exit 21 is located at the same height as the entrance / exit 18. The user takes the laundry Q from the upper side Z1 to the washing tub 4 through the open opening 14, the entrances and exits 18, and 21.
  • the entrance 21 of the washing tub 4 is the same as the entrance 18 of the outer tub 3 and is always open.
  • the vertical washing machine 1 does not have an inner door that opens and closes the entrance and exit 21. Therefore, the washing tub 4 can accommodate laundry Q to the upper end of the entrance and exit 21, that is, the upper end of the rib 20.
  • the washing tub 4 can accommodate up to 1 kg to 2 kg of laundry Q. Accordingly, the vertical washing machine 1 can maintain the external dimensions and increase the capacity of the laundry Q. That is, the vertical washing machine 1 can achieve both miniaturization and large capacity.
  • the rib 20 functions as a mark which shows the upper limit position of the laundry Q which can be accommodated.
  • the bottom wall 4B of the washing tub 4 is formed in a circular plate shape, and extends substantially parallel to the bottom wall 3B of the outer tub 3 on the upper side Z1, and is formed at a center position of the bottom wall 4B that coincides with the rotation axis J.
  • the bottom wall 4B is provided with a tubular support shaft 25 that surrounds the through-hole 4C and protrudes to the lower side Z2 along the rotation axis J.
  • the support shaft 25 is inserted into the through hole 3D of the bottom wall 3B of the outer tub 3, and the lower end portion of the support shaft 25 is located on the lower side Z2 of the bottom wall 3B.
  • a plurality of through holes 4D different from the through holes 4C are formed in the circumferential wall 4A and the bottom wall 4B of the washing tub 4. Water in the outer tub 3 flows between the outer tub 3 and the washing tub 4 through the through hole 4D. Therefore, the water level in the outer tub 3 is consistent with the water level in the washing tub 4. It should be noted that the through hole 4D may be provided on the bottom wall 4B instead of the peripheral wall 4A.
  • the rotating wing 5 is a so-called pulsator, and is formed in a disk shape with the rotation axis J as a center, and is disposed on the bottom wall 4B in the washing tub 4.
  • a plurality of ridges 5A bulging on the upper side Z1 and radiating around the rotation axis J as the center are provided on the upper surface of the entrance 21 facing the washing tub 4.
  • a plurality of back blades 5B are provided on the lower surface of the rotary wing 5 in a radial pattern with the rotation axis J as the center.
  • the rotary wing 5 is provided with a rotary shaft 26 extending from the center of the rotary wing 5 to the lower side Z2 along the rotary axis J.
  • the rotation shaft 26 is inserted into a hollow portion of the support shaft 25, and the lower end portion of the rotation shaft 26 is located on the lower side Z2 of the bottom wall 3B of the outer tub 3.
  • the motor 6 is an electric motor such as an inverter motor.
  • the motor 6 is arranged in the case 2 on the lower side Z2 of the outer tub 3.
  • the motor 6 includes an output shaft 27 that rotates around the rotation axis J, generates a driving force, and outputs the driving force from the output shaft 27.
  • the transmission mechanism 7 a known clutch can be used.
  • the transmission mechanism 7 is interposed between the lower end portions of the support shaft 25 and the rotation shaft 26 and the upper end portion of the output shaft 27 protruding from the motor 6 to the upper side Z1.
  • the transmission mechanism 7 selectively transmits the driving force output from the output shaft 27 of the motor 6 to one or both of the support shaft 25 and the rotation shaft 26.
  • the washing tub 4 receives the driving force of the motor 6 and rotates about the rotation axis J.
  • the rotary blade 5 receives the driving force of the motor 6 and rotates about the rotation axis J.
  • the water guide cover 8 has a groove shape extending from the lower end portion of the circumferential wall 4A of the washing tub 4 to the upper side Z1, and is made of, for example, a resin.
  • the upper end portion of the water guide cover 8 is arranged at a height position in front of the balance ring 19.
  • the water guide cover 8 is fixed to the circumferential wall 4A so as to cover a portion of the circumferential wall 4A where the through-hole 4C is not formed from the radially inner side R1.
  • a pumping path 28 is formed between the water guiding cover 8 and the circumferential wall 4A, and the pumping channel 28 extends from the lower end portion of the circumferential wall 4A to the upper side Z1 in the washing tub 4 to the upper end portion of the water guiding cover 8. It should be noted that there may be a plurality of water guiding covers 8. In this case, a plurality of pumping channels 28 are also provided.
  • the lower end portion of the suction channel 28 is connected from the radially outer side R2 to the space S of the lower end portion of the back blade 5B of the rotary blade 5 in the internal space of the washing tub 4.
  • the lower end of the pumping path 28 is an inlet 28A that communicates with the space S.
  • a through hole 8A is formed in the upper end portion of the water guiding cover 8 and penetrates the water guiding cover 8 in the radial direction R.
  • a portion exposed at the upper end portion of the pumping path 28 from the through hole 8A to the radially inner side R1 is an outlet 28B.
  • the drain path 9 is a hose connected to the bottom wall 3B of the outer tub 3 from the lower side Z2.
  • the water in the outer tub 3 is discharged from the drainage channel 9 to the outside of the fuselage.
  • the drain valve 10 is provided in the middle of the drain passage 22.
  • the drain valve 10 is opened and closed in order to start or stop drainage.
  • the opened drain valve 10 is in a working state, and the closed drain valve 10 is in a non-working state.
  • the vertical washing machine 1 includes a torque motor 30 that opens and closes the drain valve 10. The operation of the torque motor 30 is linked to the rotation of the washing tub 4.
  • the water supply path 11 is a hose, and one end thereof is connected to a tap.
  • the other end of the water supply path 11 is arranged in the case 2 and is connected to the water supply nozzle 12.
  • FIG. 2 is a bottom view of the water supply nozzle 12.
  • FIG. 3 is a front view of the water supply nozzle 12 as viewed from the radially inner side R1, specifically, from the front side Y1.
  • the water supply nozzle 12 is formed in a box shape having a long dimension in the left-right direction X, and has a plurality of injection ports 29.
  • the water supply nozzle 12 is configured by combining a lower portion constituting a substantially lower half and an upper portion constituting a substantially upper half.
  • the plurality of injection ports 29 include a plurality of lower injection ports 29A provided so as to be distributed over the entire area of the lower surface portion 12A of the water supply nozzle 12, and a plurality of lateral injection ports 29B provided in the radial direction inside the water supply nozzle 12.
  • R1 is a substantially lower half of the front side portion 12B.
  • three rows of 19 lower ejection ports 29A arranged in the left-right direction X are arranged in three rows in the front-rear direction Y.
  • a row of 19 horizontal injection ports 29B arranged in the left-right direction X is provided.
  • the diameter of each injection port 29 is, for example, 5 mm or less.
  • a right-side end portion of the rear surface portion of the water supply nozzle 12 is provided with a projecting portion 12C having a substantially triangular shape that projects toward the rear side Y2 when viewed from below.
  • the lower surface portion of the protrusion portion 12C is on the same plane as the lower surface portion 12A of the water supply nozzle 12, and the upper surface portion of the protrusion portion 12C is on the same plane as the upper surface portion 12D of the water supply nozzle 12.
  • a cylindrical connecting portion 12E protruding toward the upper side Z1 is provided on the upper surface portion of the protruding portion 12C. The other end of the water supply path 11 is connected to the connection portion 12E.
  • FIG. 4 is a schematic plan view of the washing tub 4 and the water supply nozzle 12.
  • the water supply nozzle 12 is fixed to the above-mentioned upper panel in the case 2, for example.
  • the water supply nozzle 12 is located near the entrance / exit 21 of the washing tub 4 in the vertical direction Z, and is arranged so as to overlap the rear half of the entrance / exit 21 in a plan view. That is, the water supply nozzle 12 is arranged so as to face the entrance / exit 21 from the upper side Z1.
  • the water supply valve 13 (see FIG. 1) includes, for example, a solenoid valve.
  • the water supply valve 13 is provided in the middle of the water supply path 11 and is opened and closed to start or stop water supply.
  • the opened water supply valve 13 is in a working state, and the closed water supply valve 13 is in a non-working state.
  • the tap water from the faucet flows into the water supply nozzle 12 through the water supply path 11, is ejected from each spray port 29 of the water supply nozzle 12, and is supplied into the washing tub 4. That is, water is supplied into the washing tub 4 from the water supply nozzle 12.
  • FIG. 5 is a block diagram showing the electrical configuration of the vertical washing machine 1.
  • the vertical washing machine 1 includes a control unit 35 as an example of a control unit and a detection unit.
  • the control unit 35 is configured, for example, as a microcomputer including a CPU 36, a memory 37 such as a ROM or a RAM, and a timer 38 for timing, and is built in the case 2 (see FIG. 1).
  • the vertical washing machine 1 further includes a rotation speed reading device 39 and a water level sensor 40 as examples of the detection means.
  • the rotation speed reading device 39 and the water level sensor 40, as well as the motor 6, the transmission mechanism 7, the drain valve 10, the water supply valve 13, and the display operation unit 17 described above, are electrically connected to the control unit 35, respectively.
  • the rotation speed reading device 39 is a device that reads the rotation speed of the motor 6, and strictly speaking, reads the rotation speed of the output shaft 27 of the motor 6, and includes, for example, a Hall IC.
  • the rotation speed read by the rotation speed reading device 39 is input to the control unit 35 in real time.
  • the control unit 35 controls the duty ratio of the voltage applied to the motor 6 based on the input rotational speed, and thereby controls the motor 6 to rotate at a desired rotational speed.
  • the rotation speed of the washing tub 4 is the same as the rotation speed of the motor 6, and the rotation speed of the rotary wing 5 is obtained by multiplying a predetermined constant such as the reduction ratio in the transmission mechanism 7 by the rotation speed of the motor 6. value.
  • the rotation number reading device 39 also reads the rotation speeds of the washing tub 4 and the rotating blade 5 by reading the rotation speed of the motor 6.
  • the water level sensor 40 is a sensor that detects the water levels of the outer tub 3 and the washing tub 4.
  • the detection result of the water level sensor 40 is input to the control unit 35 in real time.
  • a pressure-type water level sensor that detects the water level in the washing tub 4 based on the pressure in the outer tub 3 can be used.
  • the control unit 35 controls the transmission mechanism 7 to switch the transmission target of the driving force of the motor 6 to one or both of the washing tub 4 and the rotary blade 5.
  • the control unit 35 controls opening and closing of the drain valve 10 and the water supply valve 13.
  • the control unit 35 receives the selection.
  • the control unit 35 controls the display contents of the display operation unit 17.
  • the control unit 35 controls the operations of the motor 6, the transmission mechanism 7, the drain valve 10, and the water supply valve 13 to perform a washing operation.
  • the washing operation includes a water supply process for supplying water to the washing tub 4, a washing process for washing the laundry Q in the washing tub 4, a washing process for rinsing the laundry Q after the washing process, and a rotation of the washing tub 4 for the washing Q after the rinsing process.
  • Dehydration process may also be an all-in-one washing machine that performs a drying process of drying the laundry Q after the dehydration process.
  • the rinsing process is performed twice, the first rinsing process is called a first rinsing process, and the second rinsing process is called a second rinsing process.
  • the control unit 35 When the user puts the laundry Q into the washing tub 4 and instructs the start of the washing operation, the control unit 35 starts the washing operation. It should be noted that the user may put the detergent in the washing tub 4 before and after the laundry Q is put.
  • the control unit 35 detects the amount of laundry Q in the washing tub 4, that is, the load amount (step S1). As an example of the load amount detection, the control unit 35 detects the load amount based on the unevenness in the rotation speed of the motor 6 read by the rotation speed reading device 39 when the washing tub 4 is stably rotated at a low speed. The control unit 35 then supplies water and determines the level of the water stored in the washing tub 4 based on the load amount just detected. This water level is called a washing water level. The relationship between the washing water level and the load is obtained in advance through experiments or the like and stored in the memory 37.
  • the control section 35 performs a water supply process after detecting the load amount (step S2). Specifically, referring to the flowchart of FIG. 7, first, the control unit 35 checks whether the load amount just detected is equal to or greater than a predetermined value (step S21). When the load is more than a predetermined value, the capacity of the laundry Q in the washing tub 4 is large. Among the laundry Q, the laundry Q1 on the upper side Z1 is located at the upper end of the entrance 21 of the washing tub 4, which is the rib 20 described above. Near the upper end (see Figure 1).
  • the control unit 35 repeats the ejection process (step S22) and the barrel rotation process (step S23) a predetermined number of times (for example, four times).
  • the control unit 35 opens the water supply valve 13 for 20 seconds while the washing tub 4 and the rotor 5 are stationary. Accordingly, the tap water from the faucet is sprayed from each of the spray ports 29 of the water supply nozzle 12 to the laundry Q1 on the side of the inlet and outlet 21 in the washing tub 4. As a result, only the laundry Q1 on the upper side Z1 among the laundry Q in the washing tub 4 is wetted.
  • the area directly below the lower spray port 29A of the water supply nozzle 12 is poured with water sprayed from the lower spray port 29A to the lower side Z2 (refer to the thick dotted line arrow in FIG. 8).
  • the front area located around the horizontal spraying port 29B of the water supply nozzle 12 is poured with water sprayed from the horizontal spraying port 29B toward the lower side (see the thick double-dotted arrow in FIG. 8).
  • the front area is located on the front side of the area directly below. Water from the lower jetting port 29A may also drip into the front region, and water from the lateral jetting port 29B may also drip into the direct region.
  • the spray pressure of the water from each spray port 29 is set to such an extent that the water sprayed from the spray port 29 toward the laundry Q1 does not splash from the inlet 21 to the outside of the washing tub 4. As a result, the shower-like water having a weak intensity is sprayed from each of the spray ports 29.
  • the control unit 35 switches the transmission mechanism 7 as necessary to transmit the driving force of the motor 6 to the washing tub 4, and then drives the motor 6 to rotate the washing tub 4, for example, for 1/4 turn.
  • the barrel rotation processing the area in the laundry Q1 which is poured by the water from the spray port 29 is shifted to the circumferential direction P.
  • the area in the laundry Q1 that has not been wetted in the spray processing just performed is arranged so that The position where it is poured by the water of the water supply nozzle 12. Accordingly, by repeatedly performing the spray treatment and the barrel rotation treatment, the wetted area in the laundry Q1 changes, and therefore, the entire laundry Q1 is uniformly wetted.
  • the torque motor 30 works in conjunction with the rotation of the washing tub 4 to open the drain valve 10.
  • the amount of water sprayed from the water supply nozzle 12 during the spraying process is set to a small amount that can only wet the laundry Q1.
  • about 1/4 of the water supply amount corresponding to the above-mentioned washing water level is allocated as the water supply amount of the spraying process.
  • the amount of water sprayed from the water supply nozzle 12 in one spraying process is, for example, about 4L. As a result, all the water sprayed from the water supply nozzle 12 during the spraying process is absorbed by the laundry Q1.
  • step S25 the control unit 35 executes the final process (step S25).
  • the control unit 35 omits the spray process and the barrel rotation process, and executes only the final process.
  • the control unit 35 continuously opens the water supply valve 13 in a state where the drain valve 10 is closed. As a result, water is formally executed in the washing tub 4, and the water level in the washing tub 4 rises.
  • a branch (not shown) branching from the water supply path 11 and connected to the outer tub 3 may be provided.
  • step S3 the control unit 35 executes a washing process. Specifically, after switching the transmission mechanism 7 as necessary to transmit the driving force of the motor 6 to the rotary wing 5, the control unit 35 drives the motor 6 to rotate the rotary wing 5 while the washing tub 4 is to be stationary. Thereby, the laundry Q in the washing tub 4 is agitated and washed by the rotating rotor 5. Further, the dirt of the laundry Q is decomposed by a detergent dissolved in water.
  • the water in the space S on the bottom wall 4B side of the washing tub 4 is pushed to the radially outer side R2 by the back blades 5B of the rotating rotor 5 and is sent to the inlet 28A of the pumping path 28.
  • the inside is drawn up, and the laundry Q1 in the washing tub 4 is drained from the outlet 28B from above (see the thick dotted arrow in FIG. 8).
  • the dirt existing in the part of the laundry Q1 which is exposed upward from the water surface in the washing tub 4 is removed or decomposed.
  • the water poured onto the laundry Q1 is circulated so as to flow into the space S and be poured onto the laundry Q1 again through the pumping path 28.
  • the control unit 35 opens the drain valve 10 and executes drainage of the washing tub 4.
  • the washing process is ended.
  • the laundry Q1 located at the entrance and exit 21 side of the washing tub 4 is wetted in all directions by the spraying process and the bucket rotation process in the water supply process, so that the entrance and exit 21, and more specifically, the The lower side Z2 of the lower end deviates and functions as a lid such as the above-mentioned inner door. Therefore, even if the rotating wing 5 rotating during the washing process after the water supply process is intended to push the laundry Q in the washing tub 4 upward, the laundry in the washing tub 4 can be prevented by the laundry Q1 functioning as a lid. Q flew out from the entrance 21.
  • the water spraying port 29 is provided in the water supply nozzle 12 at the front side portion 12B and the lower surface portion 12A. Therefore, the water sprayed from the spraying port 29 is likely to drip into the laundry Q1 in the washing tub 4 located on the side of the entrance 21 on. Accordingly, in the spraying process, the laundry Q1 on the inlet / outlet side 21 in the washing tub 4 can be effectively wetted by the water sprayed from the spray port 29 of the water supply nozzle 12.
  • the spraying process and the bucket rotation process are omitted in the water supply process.
  • a predetermined value that is, only in the case where the probability of the laundry Q flying out from the entrance 21 is high ("S21" Yes ")
  • spray processing and barrel rotation processing are performed during the water supply process. Accordingly, even when a large-capacity laundry Q is accommodated in the washing tub 4 of the compact vertical washing machine 1, the laundry Q in the washing tub 4 can be prevented from flying out of the entrance 21 during the washing process.
  • the spray process and the barrel rotation process may be performed even when the load of the laundry Q is less than a predetermined value.
  • the control unit 35 rotates the washing tub 4 at high speed (step S4).
  • the torque motor 30 works in conjunction with the rotation of the washing tub 4 to open the drain valve 10.
  • the centrifugal force generated by the high-speed rotation of the washing tub 4 dehydrates the laundry in the washing tub 4.
  • the water seeping from the laundry by dehydration is discharged from the drainage path 9 to the outside of the machine.
  • the control unit 35 switches the transmission mechanism 7 to stop the motor 6 so that the driving force of the motor 6 is not transmitted to the washing tub 4, and therefore, the washing tub 4 rotates by inertia.
  • the control section 35 closes the drain valve 10.
  • the control section 35 performs, for example, a shower rinsing (step S5). Specifically, the control unit 35 intermittently opens the water supply valve 13 in a state where the drain valve 10 is closed, and sprays water from the water supply nozzle 12 into the washing tub 4. In this state, the control unit 35 rotates the washing tub 4 at a low speed, for example, at 30 rpm, so that the shower is spread all over the corners of the laundry Q. Thereby, the laundry Q in the washing tub 4 is rinsed in all directions. After that, the control section 35 performs the same intermediate dehydration process as step S4 (step S6). It should be noted that each intermediate dehydration process can be regarded as a part of the processing in the subsequent rinsing process.
  • control section 35 performs a second rinsing process (step S7).
  • the control unit 35 may perform spray rinsing like the first rinsing process, or may rotate the rotary blade 5 after supplying water to the washing tub 4 to the washing water level to wash the washing in the washing tub 4 Rinse with object Q.
  • control section 35 executes the same final dehydration process as the intermediate dehydration process (step S8).
  • the rotation conditions of the washing tub 4 in the intermediate dehydration process and the final dehydration process may be different.
  • the maximum rotation speed of the washing tub 4 in the final dehydration process is higher than the maximum rotation speed of the washing tub 4 in the intermediate dehydration process. As the final dehydration process ends, the washing operation ends.
  • the rotation axis J of the washing tub 4 of the vertical washing machine 1 is arranged so as to extend vertically in the vertical direction Z in the above-mentioned embodiment (see FIG. 1), but the vertical washing machine 1 also includes a rotation axis J slightly different from the vertical direction Z A structure arranged obliquely.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

一种立式洗衣机，能防止洗涤物飞出并且增加洗涤物的容纳量。立式洗衣机(1)包括：洗涤桶(4)，在其上端以始终敞开的状态形成有出入口(21)；旋转翼(5)，在洗涤桶(4)内配置于底壁(4B)上；供水喷嘴(12)，面向出入口(21)；以及控制部(35)。控制部(35)执行供水过程，该供水过程包括：喷射处理，通过供水阀(13)从供水喷嘴(12)向洗涤桶(4)内的出入口(21)侧的洗涤物(Q1)喷水；桶旋转处理，通过马达(6)使洗涤桶(4)旋转；以及最终处理，在喷射处理和桶旋转处理之后通过供水阀(13)往洗涤桶(4)内蓄水。供水过程之后，控制部(35)执行如下的洗涤过程：在洗涤桶(4)内蓄有水的状态下通过马达(6)使旋转翼(5)旋转，从而搅拌洗涤桶(4)内的洗涤物(Q)。

Description

立式洗衣机 技术领域
本发明涉及一种立式洗衣机。
背景技术
下述专利文献1所述的洗衣机是一种立式洗衣机，其包括：箱状的箱体、收容在箱体内的有底圆筒状的外桶、收容在外桶内并收容洗涤物的有底圆筒状的脱水桶、以及沿脱水桶的底壁配置于脱水桶内的旋转翼。在箱体的上表面，设置有开口和对开口进行开闭的外门。在外桶的上端，设置有从下方与箱体的开口对置的出入口和对出入口进行开闭的内门。在脱水桶的上端，设置有从下方与外桶的出入口对置的出入口。外桶和脱水桶各自的出入口由内门一起进行开闭。在洗衣机的洗涤运转中，脱水桶内的洗涤物被旋转的旋转翼搅拌。
在立式洗衣机的洗涤过程中，旋转的旋转翼会将洗涤物往上推。因此，专利文献1所述的洗衣机中，为了使上侧的洗涤物不会随着旋转翼的旋转从脱水桶的出入口飞出来，设置有关闭该出入口的内门。这种情况下，无法在脱水桶中比内门高的位置收容洗涤物，因此，难以增加洗涤物的容纳量。
现有技术文献
专利文献
专利文献1：日本专利第6350874号公报
发明内容
发明所要解决的问题
本发明是在该背景下完成的，其目的在于提供一种立式洗衣机，其能防止洗涤物飞出并且增加洗涤物的容纳量。
用于解决问题的方案
本发明是一种立式洗衣机，包括：外桶，可蓄水；驱动单元，产生驱动力；洗涤桶，配置于所述外桶内，收容洗涤物，所述洗涤桶在其上端以始终敞开的状态形成有洗涤物的出入口，在其下端设置有底壁，所述洗涤桶接受所述驱动单元的驱动力而旋转；旋转翼，在所述洗涤桶内配置于所述底壁上，接受所述驱动单元的驱动力而旋转；供水喷嘴，面向所述出入口；供水单元，至少从所述供水喷嘴向所述洗涤桶内供水；以及控制单元，控制所述驱动单元和所述供水单元，所述控制单元执行供水过程和洗涤过程，所述供水过程包括：喷射处理，通过所述供水单元，从所述供水喷嘴向所述洗涤桶内的所述出入口侧的洗涤物喷水；桶旋转处理，通过所述驱动单元使所述洗涤桶旋转；以及最终处理，在所述喷射处理和所述桶旋转处理之后，通过所述供水单元往所述洗涤桶内蓄水，所述洗涤过程为如下的过程：在所述供水过程之后，在所述洗涤桶内蓄有水的状态下通过所述驱动单元使所述旋转翼旋转，从而搅拌所述洗涤桶内的洗涤物。
此外，本发明的特征在于，所述供水喷嘴中的水的喷射口在所述供水喷嘴中设置于所述洗涤桶的旋转轴线侧的侧面部和所述供水喷嘴的下表面部。
此外，本发明的特征在于，所述立式洗衣机还包括检测单元，所述检测单元在所述供水过程之前检测所述洗涤桶内的洗涤物的负荷量，在所述检测单元检测出小于规定值的负荷量的情况下，所述控制单元在所述供水过程中省略所述喷射处理和所述桶旋转处理。
发明效果
根据本发明，在立式洗衣机中，形成于收容洗涤物的洗涤桶的上端的出入口始终处于敞开的状态。也就是说，立式洗衣机中不存在对出入口进行开闭的内门，因此，洗涤桶中能收容洗涤物至出入口的上端。由此，立式洗衣机能维持外形尺寸并且增加洗涤物的容纳量。
在立式洗衣机中，在洗涤过程之前的供水过程中，通过喷射处理从供水喷嘴向洗涤桶内的出入口侧的洗涤物喷水，洗涤桶通过桶旋转处理进行旋转。在洗涤桶内位于出入口侧的洗涤物通过喷射处理和桶旋转处理被全方位地浸湿， 从而向出入口的下侧偏离，作为上述的内门那样的盖子发挥功能。因此，即使在供水过程之后的洗涤过程中旋转的旋转翼欲将洗涤桶内的洗涤物往上推，也能防止洗涤桶内的洗涤物从出入口飞出。
此外，根据本发明，水的喷射口在供水喷嘴中设置于洗涤桶的旋转轴线侧的侧面部和供水喷嘴的下表面部，因此，从喷射口喷出的水容易淋到洗涤桶中位于出入口侧的洗涤物上。由此，在喷射处理中，能通过从供水喷嘴的喷射口喷出的水将洗涤桶中位于出入口侧的洗涤物有效地浸湿。
此外，根据本发明，在洗涤桶内的洗涤物的负荷量小于规定值的情况下，在供水过程中省略喷射处理和桶旋转处理。换句话说，在洗涤物的负荷量为规定值以上程度的大容量的情况下，会在供水过程中执行喷射处理和桶旋转处理，因此，能防止洗涤桶内的洗涤物从出入口飞出。
附图说明
图1是本发明的一实施方式的立式洗衣机的示意性纵剖右视图。
图2是立式洗衣机所含的供水喷嘴的仰视图。
图3是供水喷嘴的主视图。
图4是立式洗衣机所含的洗涤桶和供水喷嘴的示意性俯视图。
图5是表示立式洗衣机的电气结构的框图。
图6是表示立式洗衣机中执行的洗涤运转的流程图。
图7是表示洗涤运转中的供水过程的流程图。
图8是洗涤运转中的立式洗衣机的示意性纵剖右视图。
附图标记说明
1：立式洗衣机；3：外桶；4：洗涤桶；4B：底壁；5：旋转翼；6：马达；12：供水喷嘴；12A：下表面部；12B：前侧面部；13：供水阀；21：出入口；29：喷射口；35：控制部；39：转速读取装置；J：洗涤桶4的旋转轴线；Q：洗涤物；Q1：出入口21侧的洗涤物。
具体实施方式
以下，参照附图，对本发明的实施方式进行具体说明。图1是本发明的一实施方式的立式洗衣机1的示意性纵剖右视图。将图1中的上下方向称为立式洗衣机1的上下方向Z，将图1中的左右方向称为立式洗衣机1的前后方向Y，将与图1的纸面垂直的方向称为立式洗衣机1的左右方向X。上下方向Z当中，将上侧称为上侧Z1，将下侧称为下侧Z2。前后方向Y当中，将图1中的左侧称为前侧Y1，将图1中的右侧称为后侧Y2。左右方向X当中，将图1的纸面的里侧称为左侧X1，将图1的纸面的表侧称为右侧X2。
立式洗衣机1包括：箱体2、外桶3、洗涤桶4、旋转翼5、作为驱动单元的一例的马达6、传递机构7、导水罩8、排水路9、排水阀10、供水路11、供水喷嘴12以及作为供水单元的一例的供水阀13。
箱体2例如为金属制，形成为箱状。箱体2中构成上表面2A和后表面2B的上端部的部分为上面板，可以配置成可拆装于箱体2。在上表面2A中靠前的区域形成有连通箱体2的内外的开口部14。在箱体2设置有将开口部14包边并且向下侧Z2延伸的筒部15。筒部15的内部空间为开口部14的一部分。在上表面2A设置有对开口部14进行开闭的门16。在上表面2A中的开口部14周围的区域，设置有包括液晶操作面板等的显示操作部17。立式洗衣机1的使用者通过对显示操作部17进行操作，能自由选择立式洗衣机1中执行的洗涤运转的运转条件，或者指示立式洗衣机1开始、停止洗涤运转等。显示操作部17为使用者显示信息。
外桶3例如为树脂制，形成为有底圆筒状。外桶3配置于箱体2内，经由吊棒(未图示)被箱体2弹性支承。外桶3具有：大致圆筒状的圆周壁3A，沿上下方向Z配置；底壁3B，从下侧Z2堵住圆周壁3A的中空部分；以及环状的环状壁3C，将圆周壁3A的上端缘包边并且向圆周壁3A的圆心侧突出。在环状壁3C的内侧，形成有从上侧Z1与圆周壁3A的中空部分连通的出入口18。出入口18从下侧Z2与箱体2的开口部14对置，并处于与开口部14连通的状态。在环状壁3C不设置对出入口18进行开闭的内门，出入口18处于始终敞开的状态。底壁3B形成为大致水平延伸的圆板状，在底壁3B的圆心位置形成有贯通 底壁3B的贯通孔3D。外桶3内可蓄水。
洗涤桶4例如为金属制，形成为比外桶3小一圈的有底圆筒状，同轴状地配置在外桶3内。收容于外桶3内的状态的洗涤桶4能绕穿过洗涤桶4的中心沿上下方向Z延伸的旋转轴线J旋转。旋转轴线J也是外桶3的中心，洗涤桶4的旋转方向与绕旋转轴线J的周向P一致。以下，将以旋转轴线J为中心的径向称为径向R，径向R当中，将旋转轴线J那一侧称为径向内侧R1，将远离旋转轴线J那一侧称为径向外侧R2。
洗涤桶4的内部能收容洗涤物Q。洗涤桶4具有：大致圆筒状的圆周壁4A，沿上下方向Z配置；以及底壁4B，设置于洗涤桶4的下端，从下侧Z2堵住圆周壁4A的中空部分。
洗涤桶4的圆周壁4A的内周面为洗涤桶4的内周面。在圆周壁4A的内周面的上端部，装配有沿周向P延伸的圆环状的平衡环19。平衡环19例如为树脂制的中空体。在平衡环19内，自由流动地收容有用于取得洗涤桶4的旋转平衡的液体。在平衡环19的上端面，设置有向上侧Z1突出并沿周向P延伸的圆环状的肋20。肋20的上端部插通于外桶3的出入口18，肋20的上端处于从出入口18向上侧Z1突出的状态。平衡环19和肋20构成洗涤桶4的上端。被平衡环19和肋20围住的区域为形成于洗涤桶4的上端的出入口21。出入口21从下侧Z2与箱体2的开口部14对置，并处于与开口部14连通的状态。出入口21的上端位于与出入口18相同高度的位置。使用者经由敞开的开口部14、出入口18和21，从上侧Z1向洗涤桶4投取洗涤物Q。
洗涤桶4的出入口21与外桶3的出入口18相同，始终处于敞开的状态。也就是说，立式洗衣机1中不存在对出入口21进行开闭的内门，因此，洗涤桶4中能收容洗涤物Q至出入口21的上端也就是肋20的上端。由此，与存在内门的情况相比，洗涤桶4中能收容多达1kg～2kg的洗涤物Q。由此，立式洗衣机1能维持外形尺寸并且增加洗涤物Q的容纳量。也就是说，立式洗衣机1能实现小型化和大容量化的兼顾。需要说明的是，肋20作为表示能收容的洗涤物Q的上限位置的标记发挥作用。
洗涤桶4的底壁4B形成为圆板状，在上侧Z1与外桶3的底壁3B隔开间隔地大致平行延伸，在底壁4B的与旋转轴线J一致的圆心位置，形成有贯通底 壁4B的贯通孔4C。在底壁4B设置有管状的支承轴25，该支承轴25包围贯通孔4C并沿着旋转轴线J向下侧Z2伸出。支承轴25插通于外桶3的底壁3B的贯通孔3D，支承轴25的下端部位于底壁3B的下侧Z2。在洗涤桶4的圆周壁4A和底壁4B，形成有多个有别于贯通孔4C的贯通孔4D。外桶3内的水经由贯通孔4D在外桶3与洗涤桶4之间往来。因此，外桶3内的水位与洗涤桶4内的水位一致。需要说明的是，贯通孔4D可以不设置于圆周壁4A而只设置于底壁4B。
旋转翼5即所谓的波轮，形成为以旋转轴线J为圆心的圆盘状，在洗涤桶4内配置于底壁4B上。在旋转翼5中，在朝向洗涤桶4的出入口21的上表面，设置有向上侧Z1***并且以旋转轴线J为圆心呈辐射状配置的多个***部5A。在旋转翼5的下表面，设置有以旋转轴线J为圆心呈辐射状配置的多个背叶片5B。在旋转翼5设置有从其圆心沿着旋转轴线J向下侧Z2延伸的旋转轴26。旋转轴26插通于支承轴25的中空部分，旋转轴26的下端部位于外桶3的底壁3B的下侧Z2。
马达6为变频马达等电动马达。马达6在箱体2内配置于外桶3的下侧Z2。马达6具有以旋转轴线J为中心进行旋转的输出轴27，产生驱动力并将其从输出轴27输出。
可以使用公知的离合器作为传递机构7。传递机构7介于支承轴25和旋转轴26各自的下端部与从马达6向上侧Z1突出的输出轴27的上端部之间。传递机构7将马达6从输出轴27输出的驱动力选择性地传递给支承轴25和旋转轴26的一方或双方。当来自马达6的驱动力传递给支承轴25时，洗涤桶4接受马达6的驱动力而绕旋转轴线J旋转。当来自马达6的驱动力传递给旋转轴26时，旋转翼5接受马达6的驱动力而绕旋转轴线J旋转。
导水罩8呈从洗涤桶4的圆周壁4A的下端部向上侧Z1延伸的槽状，例如为树脂制，其俯视剖面例如形成为向径向内侧R1凸弯曲的圆弧状。导水罩8的上端部配置于到平衡环19跟前的高度位置。导水罩8以从径向内侧R1覆盖圆周壁4A中的未形成贯通孔4C的部分的方式固定于圆周壁4A。由此，在导水罩8与圆周壁4A之间形成有抽水路28，抽水路28在洗涤桶4内从圆周壁4A的下端部向上侧Z1延伸至导水罩8的上端部。需要说明的是，可以存在多个导水 罩8，这种情况下，也设置有多个抽水路28。
抽水路28的下端部从径向外侧R2与洗涤桶4的内部空间中配置有旋转翼5的背叶片5B的下端部的空间S连接。抽水路28的下端是与空间S连通的入口28A。在导水罩8的上端部，形成有沿径向R贯通导水罩8的贯通孔8A。在抽水路28的上端部从贯通孔8A向径向内侧R1露出的部分为出口28B。
排水路9是从下侧Z2与外桶3的底壁3B连接的软管。外桶3内的水从排水路9排出至机身外。排水阀10设置于排水路22的中途。排水阀10为了开始或停止排水而进行开闭。打开的排水阀10处于工作状态，关闭的排水阀10处于不工作状态。立式洗衣机1包括使排水阀10开闭的一个转矩马达30。转矩马达30的动作与洗涤桶4的旋转连动。
供水路11为软管，其一端与自来水龙头相连。供水路11的另一端配置于箱体2内，与供水喷嘴12连接。
图2是供水喷嘴12的仰视图。图3是从径向内侧R1，具体而言从前侧Y1观察到的供水喷嘴12的主视图。供水喷嘴12形成为在左右方向X上长尺寸的箱状，具有多个喷射口29。供水喷嘴12通过将构成大致下半部分的下部分和构成大致上半部分的上部分组合而构成。多个喷射口29包括：多个下喷射口29A，以分布在供水喷嘴12的下表面部12A的整个区域的方式设置；以及多个横喷射口29B，在供水喷嘴12中设置于径向内侧R1的前侧面部12B的大致下半部分。例如，沿前后方向Y排列设置有三列由沿左右方向X排列的19个下喷射口29A构成的列。例如，设置有由沿左右方向X排列的19个横喷射口29B构成的一列。各个喷射口29的直径例如为5mm以下。
在供水喷嘴12的后表面部的右端部设置有仰视时向后侧Y2突出的大致三角形状的突出部12C。突出部12C的下表面部与供水喷嘴12的下表面部12A处于同一平面，突出部12C的上表面部与供水喷嘴12的上表面部12D处于同一平面。在突出部12C的上表面部设置有向上侧Z1突出的筒状的连结部12E。供水路11的另一端与连结部12E连接。
图4是洗涤桶4和供水喷嘴12的示意性俯视图。供水喷嘴12在箱体2内例如固定于上述的上面板。供水喷嘴12在上下方向Z上位于洗涤桶4的出入口 21附近，配置为俯视时与出入口21的后半区域重叠。也就是说，供水喷嘴12配置为从上侧Z1面向出入口21。供水阀13(参照图1)例如包括电磁阀。供水阀13设置于供水路11的中途，为了开始或停止供水而开闭。打开的供水阀13处于工作状态，关闭的供水阀13处于不工作状态。当供水阀13打开时，来自水龙头的自来水穿过供水路11流入供水喷嘴12内，从供水喷嘴12的各个喷射口29喷出而供给至洗涤桶4内。也就是说，从供水喷嘴12向洗涤桶4内供水。
图5是表示立式洗衣机1的电气结构的框图。立式洗衣机1包括作为控制单元和检测单元的一例的控制部35。控制部35例如构成为包括CPU36、ROM或RAM等存储器37、以及计时用的计时器38的微型计算机，内置于箱体2内(参照图1)。
立式洗衣机1还包括作为检测单元的一例的转速读取装置39和水位传感器40。转速读取装置39和水位传感器40，还有上述的马达6、传递机构7、排水阀10、供水阀13以及显示操作部17分别与控制部35电连接。
转速读取装置39是读取马达6的转速，严格来说读取马达6的输出轴27的转速的装置，例如包括霍尔IC。转速读取装置39所读取的转速被实时输入至控制部35。控制部35基于输入的转速来控制施加给马达6的电压的占空比，由此，控制马达6以期望的转速进行旋转。需要说明的是，本实施方式中，洗涤桶4的转速与马达6的转速相同，旋转翼5的转速是将传递机构7中的减速比等规定的常数与马达6的转速相乘而得的值。总之，旋转数读取装置39通过读取马达6的转速，也读取洗涤桶4和旋转翼5各自的转速。
水位传感器40是检测外桶3和洗涤桶4的水位的传感器，水位传感器40的检测结果被实时输入至控制部35。作为水位传感器40的一例，能采用根据外桶3内的压力来检测洗涤桶4内的水位的压力式水位传感器。
控制部35通过控制传递机构7，将马达6的驱动力的传递目标切换为洗涤桶4和旋转翼5的一方或双方。控制部35控制排水阀10和供水阀13的开闭。当使用者对显示操作部17进行操作而选择运转条件等时，控制部35接收该选择。控制部35按显示操作部17的显示内容进行控制。
控制部35通过控制马达6、传递机构7、排水阀10以及供水阀13的动作 而执行洗涤运转。洗涤运转具有向洗涤桶4供水的供水过程、清洗洗涤桶4内的洗涤物Q的洗涤过程、在洗涤过程之后漂洗洗涤物Q的漂洗过程以及在漂洗过程之后旋转洗涤桶4对洗涤物Q进行脱水的脱水过程。需要说明的是，立式洗衣机1也可以是在脱水过程之后还执行烘干洗涤物Q的烘干过程的洗干一体机。本实施方式中，漂洗过程执行两次，将第一次的漂洗过程称为第一漂洗过程，将第二次的漂洗过程称为第二漂洗过程。
当使用者将洗涤物Q投入洗涤桶4内并指示开始洗涤运转时，控制部35开始洗涤运转。需要说明的是，使用者也可以在投入洗涤物Q的前后将洗涤剂投入洗涤桶4内。参照图6的流程图，首先，控制部35检测洗涤桶4内的洗涤物Q的量也就是负荷量(步骤S1)。作为负荷量检测的一例，控制部35根据使洗涤桶4以低速稳定旋转时由转速读取装置39读取到的马达6的转速的不均来检测负荷量。控制部35接着进行供水并根据刚才检测出的负荷量来决定蓄于洗涤桶4内的水的水位。将该水位称为洗涤水位。洗涤水位与负荷量的关系通过实验等预先求出并存储于存储器37。
控制部35在检测负荷量之后执行供水过程(步骤S2)。具体而言，参照图7的流程图，首先，控制部35确认刚才检测出的负荷量是否为规定值以上(步骤S21)。在负荷量为规定值以上的情况下，洗涤桶4内的洗涤物Q容量大，洗涤物Q当中，上侧Z1的洗涤物Q1位于洗涤桶4的出入口21的上端也就是上述的肋20的上端附近(参照图1)。
在负荷量为规定值以上的情况下(步骤S21中为“是”)，控制部35反复进行规定次数(例如四次)的喷射处理(步骤S22)和桶旋转处理(步骤S23)。作为喷射处理的一例，控制部35在洗涤桶4和旋转翼5静止的状态下将供水阀13打开20秒。由此，来自水龙头的自来水从供水喷嘴12的各个喷射口29向洗涤桶4内的出入口21侧的洗涤物Q1喷射。由此，洗涤桶4内的洗涤物Q当中，只有上侧Z1的洗涤物Q1被浸湿。具体而言，洗涤物Q1中，位于供水喷嘴12的下喷射口29A的正下方的正下区域被从下喷射口29A向下侧Z2喷射的水(参照图8的粗点划线箭头)浇淋。此外，洗涤物Q1中，位于供水喷嘴12的横喷射口29B的周围的前区域被从横喷射口29B向前下侧喷射的水(参照图8的粗双点划线箭头)浇淋。前区域位于正下区域的前侧。来自下喷射口29A的水也 可以淋到前区域，来自横喷射口29B的水也可以淋到正下区域。
来自各个喷射口29的水的喷射压力被设定为从喷射口29向洗涤物Q1喷出的水不会从出入口21溅到洗涤桶4外面的程度。由此，从各个喷射口29喷出强度较弱的淋浴状的水。作为桶旋转处理的一例，控制部35在根据需要切换传递机构7使得马达6的驱动力传递至洗涤桶4之后，使马达6驱动从而使洗涤桶4旋转例如1/4周。通过桶旋转处理，洗涤物Q1中被来自喷射口29的水浇淋的区域向周向P偏移，因此，洗涤物Q1中在刚才进行的喷射处理中未被浸湿的区域被配置到能被供水喷嘴12的水浇淋的位置。由此，通过反复进行喷射处理和桶旋转处理，洗涤物Q1中浸湿的区域发生变化，因此，整个洗涤物Q1被均匀地浸湿。
在桶旋转处理中，转矩马达30与洗涤桶4的旋转连动地进行工作，打开排水阀10。喷射处理中从供水喷嘴12喷出的水量被设定为只能浸湿洗涤物Q1的程度的少量。作为一例，相当于上述的洗涤水位的供水量当中，1/4左右被分配为喷射处理的供水量，这种情况下，一次喷射处理中从供水喷嘴12喷出的水量例如为4L左右。由此，喷射处理中从供水喷嘴12喷出的所有水都被洗涤物Q1吸收。因此，即使在桶旋转处理过程中排水阀10打开，从供水喷嘴12喷出的水也不会从排水路9排出，因此，能防止事先投入洗涤桶4内的洗涤剂随着喷射处理的水从排水路9流出。
分别反复进行四次喷射处理和桶旋转处理后(步骤S24中为“是”)，控制部35执行最终处理(步骤S25)。另一方面，在洗涤物Q的负荷量小于规定值的情况下(步骤S21中为“否”)，控制部35省略喷射处理和桶旋转处理，只执行最终处理。作为最终处理，控制部35在关闭排水阀10的状态下持续地打开供水阀13。由此，向洗涤桶4内正式执行供水，洗涤桶4内的水位上升。需要说明的是，也可以设置例如从供水路11分支并与外桶3相连的支路(未图示)，在最终处理中，不从供水喷嘴12而从该支路向洗涤桶4内供水。当洗涤桶4内的水位上升至刚才决定的洗涤水位时，控制部35关闭供水阀13而结束最终处理。当通过最终处理而蓄水至洗涤桶4内时，供水过程结束。
接着，在洗涤桶4内蓄有水的状态下，参照图6，控制部35执行洗涤过程(步骤S3)。具体而言，在根据需要切换传递机构7而使得马达6的驱动力传递 至旋转翼5之后，控制部35在洗涤桶4欲静止的状态下通过驱动马达6而使旋转翼5旋转。由此，洗涤桶4内的洗涤物Q通过旋转的旋转翼5被搅拌清洗。而且，洗涤物Q的污垢被溶于水的洗涤剂分解。
在洗涤过程中，洗涤桶4内的底壁4B侧的空间S的水通过旋转的旋转翼5的背叶片5B被推向径向外侧R2而送入抽水路28的入口28A，在抽水路28内被往上汲，由出口28B从上方淋向洗涤桶4内的洗涤物Q1(参照图8的粗虚线箭头)。由此，存在于洗涤物Q1中向上露出洗涤桶4内的水面的部分的污垢被去除或分解。浇淋到洗涤物Q1上的水以流入空间S并再次经过抽水路28被浇淋到洗涤物Q1上的方式循环。
然后，当经过规定的清洗时间时，控制部35打开排水阀10，执行洗涤桶4的排水。当洗涤桶4的排水完成时，结束洗涤过程。
如图8所示，在洗涤桶4内位于出入口21侧的洗涤物Q1通过供水过程中的喷射处理和桶旋转处理被全方位地浸湿，从而向出入口21，详细而言向平衡环19的下端的下侧Z2偏离，作为上述的内门那样的盖子发挥功能。因此，即使在供水过程之后的洗涤过程中旋转的旋转翼5欲将洗涤桶4内的洗涤物Q往上推，也能通过作为盖子发挥功能的洗涤物Q1来防止洗涤桶4内的洗涤物Q从出入口21飞出。
特别是，水的喷射口29在供水喷嘴12中设置于前侧面部12B和下表面部12A，因此，从喷射口29喷出的水容易淋到洗涤桶4中位于出入口21侧的洗涤物Q1上。由此，在喷射处理中，能通过从供水喷嘴12的喷射口29喷出的水将洗涤桶4中位于出入口21侧的洗涤物Q1有效地浸湿。
另一方面，在洗涤桶4内的洗涤物Q的负荷量小于规定值的情况下(步骤S21中为“否”)，在供水过程中省略喷射处理和桶旋转处理。换句话说，只有在洗涤物Q的负荷量为规定值以上的程度的大容量的情况下，也就是只有在洗涤物Q从出入口21飞出的可能性高的情况下(步骤S21中为“是”)，会在供水过程中执行喷射处理和桶旋转处理。由此，即使是在紧凑型的立式洗衣机1的洗涤桶4中收容有大容量的洗涤物Q的情况下，也能防止洗涤桶4内的洗涤物Q在洗涤过程中从出入口21飞出。需要说明的是，可以在洗涤物Q的负荷量小于规定值的情况下也执行喷射处理和桶旋转处理。
参照图6，作为洗涤过程之后的脱水过程也就是中间脱水过程，控制部35使洗涤桶4高速旋转(步骤S4)。在脱水过程中，转矩马达30与洗涤桶4的旋转连动地工作，打开排水阀10。通过因洗涤桶4的高速旋转而产生的离心力，洗涤桶4内的洗涤物被脱水。通过脱水而从洗涤物渗出的水从排水路9排出至机外。在中间脱水过程的最后阶段，控制部35切换传递机构7停止马达6而使得马达6的驱动力不会传递至洗涤桶4，因此，洗涤桶4惯性旋转。在中间脱水过程的最后，控制部35关闭排水阀10。
接着，作为第一漂洗过程，控制部35例如执行喷淋漂洗(步骤S5)。具体而言，控制部35在关闭排水阀10的状态下，间歇地打开供水阀13，从而从供水喷嘴12向洗涤桶4内喷淋供水。这种状态下，控制部35使洗涤桶4例如以30rpm低速旋转而使得喷淋遍布洗涤物Q的所有角落。由此，洗涤桶4内的洗涤物Q被全方位地漂洗。之后，控制部35执行与步骤S4相同的中间脱水过程(步骤S6)。需要说明的是，可以将各个中间脱水过程视作是紧接着进行的漂洗过程中的一部分处理。
接着，控制部35执行第二漂洗过程(步骤S7)。作为第二漂洗过程的一例，控制部35既可以像第一漂洗过程那样执行喷淋漂洗，也可以在向洗涤桶4内供水至洗涤水位之后使旋转翼5旋转从而对洗涤桶4内的洗涤物Q进行搅拌漂洗。
最后，控制部35执行与中间脱水过程相同的最终脱水过程(步骤S8)。其中，中间脱水过程和最终脱水过程的洗涤桶4的旋转条件可以不同，特别是，最终脱水过程中的洗涤桶4的最高转速比中间脱水过程中的洗涤桶4的最高转速高。随着最终脱水过程结束，洗涤运转结束。
本发明不局限于以上说明的实施方式，可以在技术方案所述的范围内进行各种变更。
立式洗衣机1的洗涤桶4的旋转轴线J在上述实施方式中以沿着上下方向Z垂直延伸的方式配置(参照图1)，但是立式洗衣机1也包括旋转轴线J相对于上下方向Z稍微倾斜地配置的结构。

Claims (3)

  1. 一种立式洗衣机，其特征在于，包括：
    外桶，可蓄水；
    驱动单元，产生驱动力；
    洗涤桶，配置于所述外桶内，收容洗涤物，所述洗涤桶在其上端以始终敞开的状态形成有洗涤物的出入口，在其下端设置有底壁，所述洗涤桶接受所述驱动单元的驱动力而旋转；
    旋转翼，在所述洗涤桶内配置于所述底壁上，接受所述驱动单元的驱动力而旋转；
    供水喷嘴，面向所述出入口；
    供水单元，至少从所述供水喷嘴向所述洗涤桶内供水；以及
    控制单元，控制所述驱动单元和所述供水单元，
    所述控制单元执行供水过程和洗涤过程，
    所述供水过程包括：喷射处理，通过所述供水单元，从所述供水喷嘴向所述洗涤桶内的所述出入口侧的洗涤物喷水；桶旋转处理，通过所述驱动单元使所述洗涤桶旋转；以及最终处理，在所述喷射处理和所述桶旋转处理之后，通过所述供水单元往所述洗涤桶内蓄水，
    所述洗涤过程为如下的过程：在所述供水过程之后，在所述洗涤桶内蓄有水的状态下通过所述驱动单元使所述旋转翼旋转，从而搅拌所述洗涤桶内的洗涤物。
  2. 根据权利要求1所述的立式洗衣机，其特征在于，
    所述供水喷嘴中的水的喷射口在所述供水喷嘴中设置于所述洗涤桶的旋转轴线侧的侧面部和所述供水喷嘴的下表面部。
  3. 根据权利要求1或2所述的立式洗衣机，其特征在于，
    还包括检测单元，所述检测单元在所述供水过程之前检测所述洗涤桶内的 洗涤物的负荷量，
    在所述检测单元检测出小于规定值的负荷量的情况下，所述控制单元在所述供水过程中省略所述喷射处理和所述桶旋转处理。
PCT/CN2019/097620 2018-07-26 2019-07-25 立式洗衣机 WO2020020268A1 (zh)

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JP2002282587A (ja) * 2001-03-23 2002-10-02 Mitsubishi Electric Corp 洗濯機
JP2003275496A (ja) * 2002-03-26 2003-09-30 Mitsubishi Electric Corp 洗濯機
CN100999864A (zh) * 2007-01-11 2007-07-18 无锡小天鹅股份有限公司 洗衣机的洗涤控制程序
JP2011000348A (ja) * 2009-06-22 2011-01-06 Hitachi Appliances Inc 洗濯機
CN102747582A (zh) * 2011-04-19 2012-10-24 日立空调·家用电器株式会社 洗衣机
CN107109761A (zh) * 2014-10-27 2017-08-29 Lg电子株式会社 洗衣机
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