WO2021000823A1 - 立式洗衣机 - Google Patents

立式洗衣机 Download PDF

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Publication number
WO2021000823A1
WO2021000823A1 PCT/CN2020/098774 CN2020098774W WO2021000823A1 WO 2021000823 A1 WO2021000823 A1 WO 2021000823A1 CN 2020098774 W CN2020098774 W CN 2020098774W WO 2021000823 A1 WO2021000823 A1 WO 2021000823A1
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WO
WIPO (PCT)
Prior art keywords
washing
tub
dehydrating
wing
laundry
Prior art date
Application number
PCT/CN2020/098774
Other languages
English (en)
French (fr)
Inventor
川口智也
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
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
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to CN202080047036.9A priority Critical patent/CN114026281A/zh
Publication of WO2021000823A1 publication Critical patent/WO2021000823A1/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
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • D06F17/10—Impellers
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • 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
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • 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

Definitions

  • the present invention relates to, for example, a vertical washing machine that performs a washing process and a rinsing process.
  • the rotary wing is rotationally driven at the bottom of the washing and dewatering tub so that the rotationally driven rotary wing is brought into contact with the laundry, and the laundry is washed by friction of the rotary wing.
  • Patent Document 1 Japanese Patent Application Publication No. 2009-28509
  • the laundry in the washing and dewatering tub is cleaned by friction of the rotating wings during the washing process, but there is a problem that the laundry is knotted in the washing and dewatering tub. If the dewatering process is carried out while the laundry is knotted during the washing process, when the laundry is taken out from the washing and dewatering tank after the dewatering process, it is necessary to remove the knot while removing the laundry. Removability in the dehydration barrel is very poor. It should be noted that the same is true during the rinsing process, and there is a problem that the laundry is knotted in the washing and dehydrating tub.
  • the inventor of the present invention has conducted research on the main reasons for the knotting of the laundry in the washing and dewatering tank during the washing and rinsing process, and believes that the main reason is: the friction of the rotating wings greatly agitates the bottom of the washing and dewatering tank and There is a difference in the amount of agitation of the laundry in the upper part of the washing and dewatering tank where the laundry does not touch the rotating blade.
  • the inventor of the present invention has studied the following method: From the side of the washing and dewatering tub The washing liquid is discharged to form a water flow in the washing and dewatering tub, and the laundry is washed in the washing and dewatering tub by the water flow.
  • the inventors of the present invention conducted this research and found that when washing is performed by the water flow formed in the washing and dehydrating tub after the washing liquid is discharged into the washing and dehydrating tub, the washing of the bottom and the upper part of the dewatering tub is The difference in the amount of stirring is small, so it is possible to prevent the laundry from knotting in the washing and dehydrating tub. It should be noted that, in the vertical washing machine of Patent Document 1, since the pumping blade and the rotating blade are rotationally driven at the same time, it is impossible to rotate only the pumping blade without rotating the rotating blade.
  • the vertical washing machine of the present invention is characterized by comprising: an outer tub; a washing and dewatering tub, which is rotatably installed in the outer tub to accommodate washing; and a water pumping path is provided in the washing and dewatering tub for
  • the washing liquid in the washing and dehydrating drum is sucked from the bottom of the washing and dehydrating drum and the washing liquid is returned to the washing and dehydrating drum; the discharge part, the washing liquid is discharged from the pumping path to the washing and dehydrating In the barrel;
  • a rotating wing is arranged at the bottom of the washing and dewatering barrel, which rotates to move the washing in the washing and dewatering barrel;
  • the pumping wing is arranged between the bottom wall of the washing and dewatering barrel and the rotating wing
  • the washing liquid in the washing and dewatering tank is sent from the bottom of the washing and dewatering tank to the pumping channel by rotation;
  • the driving unit can independently control the washing and dewatering tank, the rotating wing and the The pumping
  • the present invention is characterized in that, in the washing process or the rinsing process, the driving time of the first operation is longer than the driving time of the second operation.
  • the present invention is characterized in that the washing and dewatering tub is configured to rotate only in a predetermined direction, and the control unit drives the rotary wing in a direction opposite to the predetermined direction in the second operation.
  • a load amount detection unit that detects a load amount corresponding to the amount of laundry in the washing and dehydrating tub, and the control unit determines the load based on the load amount detected by the load amount detection unit. At least one of the driving time and the rotation speed of the rotor during the second operation is controlled.
  • the discharge portion includes a plurality of discharge ports extending in a longitudinal direction or an oblique direction, respectively.
  • the plurality of discharge ports discharge the washing liquid in the entire height direction of the washing and dewatering section in the washing and dewatering tub where a plurality of water passing holes are formed.
  • the laundry in the washing and dewatering tub can be slowly moved by driving only the second operation of the rotary wing during the washing process and the rinsing process, and at the same time, the first operation of driving only the suction wing can be performed.
  • the water flow formed in the washing and dehydrating tank due to the discharge of the washing liquid is used to wash or rinse the laundry.
  • the laundry is cleaned mainly by driving only the first operation of the hydrofoil, the difference in the amount of agitation of the laundry at the bottom and the upper portion of the washing and dewatering tub is small. Therefore, it is possible to prevent the laundry from knotting in the washing and dewatering tub, and improve the taking out of the laundry from the washing and dehydrating tub.
  • the driving time of the first operation that only drives the hydrofoil during the washing process and the rinsing process is longer than the drive time of the second operation that only drives the rotary wing, so it can more effectively inhibit the washing and dehydration of the laundry Knotted inside the barrel. Therefore, the taking out of the laundry from the washing and dewatering tank can be further improved.
  • the rotary wing in the second operation, is driven to rotate in a direction in which the washing and dehydrating tub cannot rotate, so that it can prevent the washing and dehydrating tub from moving to the laundry when the washing is moved due to the rotation of the rotary wing in the second operation Rotate in the direction of movement. Therefore, it is possible to reliably change the relative position of the discharge portion that discharges the washing liquid and the laundry.
  • At least one of the rotation speed and the driving time of the rotor in the second operation is controlled according to the load corresponding to the amount of laundry in the washing and dehydrating tub, so that washing or rinsing is performed every time by the water flow The washing can move correctly at all times.
  • the discharge portion includes a plurality of discharge ports extending in a longitudinal direction or an oblique direction, respectively, so that the washing liquid can be discharged in a wide range in the height direction of the washing and dehydrating tub. Therefore, it can effectively reduce uneven cleaning and uneven rinsing.
  • the washing liquid is discharged from the plurality of discharge ports in the entire height direction of the washing and dehydrating part formed with a plurality of water passage holes in the washing and dehydrating tub, so that uneven washing and rinsing can be more effectively reduced. Uneven.
  • Fig. 1 is a schematic cross-sectional view of a vertical washing machine 1 according to an embodiment of the present invention.
  • FIG. 2 is a diagram for explaining the arrangement of three discharge ports 20a formed in the washing and dehydrating tub 3 of the vertical washing machine 1.
  • FIG. 2 is a diagram for explaining the arrangement of three discharge ports 20a formed in the washing and dehydrating tub 3 of the vertical washing machine 1.
  • FIG. 3 is a diagram showing a schematic configuration of the drive mechanism 30 of the vertical washing machine 1. As shown in FIG. 3
  • FIG. 4 is a diagram explaining the first operation and the second operation of the vertical washing machine 1.
  • FIG. 5 is a control block diagram of the vertical washing machine 1.
  • FIG. 6 is a flowchart showing the operation of the washing process of the vertical washing machine 1.
  • FIG. 7 is a flowchart showing the operation of the washing process of the vertical washing machine 1.
  • FIG. 8 is a flowchart showing the operation of the rotation speed/driving time determination routine of the rotor blade 5.
  • FIG. 9 is a flowchart showing the operation of the rinsing process of the vertical washing machine 1.
  • FIG. 1 is a schematic cross-sectional view of a vertical washing machine 1 according to an embodiment of the present invention.
  • the vertical washing machine 1 (hereinafter, sometimes referred to as the washing machine 1) has a box (not shown) as the main body of the washing machine, and a bottomed cylindrical shape is suspended and supported by a plurality of hanging rods (not shown) inside the box.
  • Outer barrel 2 (hereinafter, sometimes referred to as the washing machine 1)
  • the outer tub 2 integrally has a cylindrical side wall 7 extending in the vertical direction and a bottom wall 8 that blocks the lower end of the side wall 7.
  • the upper end of the outer tub 2 is formed with an opening 2 a through the upper end edge of the side wall 7.
  • a through hole 10 is formed in the center of the bottom wall 8. Washing liquid (water mixed with detergent, fresh water) is stored in the outer tub 2 from the bottom wall 8 side.
  • the washing and dewatering bucket 3 is housed in the outer bucket 2 and contains laundry.
  • the washing and dewatering tub 3 integrally has a cylindrical side wall 11 extending vertically and a bottom 12 that blocks the lower end of the side wall 11.
  • An opening 3a is formed at the upper end edge of the side wall 11 of the washing and dewatering tub 3, and a balancing device 3b is arranged near the opening 3a.
  • the washing and dewatering bucket 3 doubles as a dewatering bucket, and a number of water passing holes 11a are formed on the side wall 11 located below the balance device 3b. Therefore, the side wall 11 has a washing and dewatering part 11A that is a part in which a lot of water passing holes 11a are formed under the balance device 3b.
  • the washing and dewatering tub 3 is pivotally supported so as to be freely rotatable about a support shaft 16 fixed to the bottom 12 thereof.
  • the support shaft 16 is rotatably supported by a non-illustrated one-way bearing, so it can only rotate in a prescribed direction (clockwise when viewed from above), and not in the opposite direction (counterclockwise when viewed from above) ) Rotate.
  • the support shaft 16 is along the vertical direction, and the washing and dewatering tub 3 rotates around a rotating shaft parallel to the vertical direction.
  • the bottom 12 of the washing and dewatering tub 3 has a first bottom wall 17 on the upper side and a second bottom wall 18 on the lower side, and a space 12 a is formed between the first bottom wall 17 and the second bottom wall 18.
  • the first bottom wall 17 is formed in a ring shape and is connected to the lower end of the side wall 11 of the washing and dehydrating tub 3. There is a portion of the first bottom wall 17 that is not connected to the bottom 12 of the washing and dewatering tub 3, and a cover 20 extending vertically is connected to this portion.
  • the cover 20 is connected in a state facing the side wall 11 and extends upward along the side wall 11.
  • the cover 20 is integrated with the side wall 11 to form a tubular pumping channel 21.
  • a suction port 22 communicating with the space 12a is provided at the lower end of the pumping passage 21, and a discharge port 20a communicating with the washing and dehydrating tub 3 is provided at the upper end of the pumping passage 21.
  • a rotating wing 5 is provided at the bottom 12 of the washing and dewatering tub 3.
  • the rotating wing 5 is a member used to move the laundry in the washing and dehydrating tub 3 by rotating during the washing process and the rinsing process.
  • the space 12a between the bottom 12 of the washing and dewatering tub 3 and the rotating wing 5 is provided with a pumping wing 6.
  • the water wing 6 rotates to send the washing liquid in the washing and dehydrating tank 3 from the bottom 12 of the washing and dehydrating tank 3 to the pumping channel 21.
  • the water pumping wing 6 is installed so as to be freely rotatable around a rotating shaft 6a inserted in the support shaft 16, and the rotating wing 5 is installed so as to freely rotate around a rotating shaft 5a inserted in the rotating shaft 6a.
  • the washing and dewatering tub 3 has a water pumping path 21 and three discharge ports 20a communicating with the washing and dewatering tub 3, respectively.
  • the three discharge ports 20a are arranged so as to be separated by approximately 120 degrees in plan view, and are formed to extend in the longitudinal direction, respectively.
  • Fig. 2 is a view of the three discharge ports 20a viewed from the inside of the washing and dehydrating tank 3, and the three discharge ports 20a are arranged at different heights.
  • the three discharge ports 20a each have the same longitudinal length, which is about one third of the longitudinal length of the washing and dehydrating portion 11A, which is the portion where the water passing holes 11a are formed. Therefore, the sum of the longitudinal lengths of the three discharge ports 20a is substantially the same as the longitudinal length of the washing and dehydrating section 11A. Therefore, the three discharge ports 20a discharge the washing liquid in the entire height direction of the washing and dehydrating portion 11A of the washing and dehydrating tub 3.
  • a water flow can be generated in the washing and dehydrating tub 3 regardless of the amount of laundry in the washing and dehydrating tub 3.
  • the vertical washing machine 1 of the present embodiment includes a plurality of discharge ports 20a each extending in the longitudinal direction as discharge parts.
  • the vertical washing machine 1 of the present embodiment includes a plurality of discharge ports 20a each extending in the longitudinal direction as the discharge portion, so that the washing liquid can be discharged in a wide range in the height direction of the washing and dehydrating tub 3. Therefore, it can effectively reduce uneven cleaning and uneven rinsing.
  • the plurality of discharge ports 20a discharge the washing liquid over the entire height direction of the washing and dehydrating section 11A in the washing and dehydrating tub 3 where the plurality of water passing holes 11a are formed.
  • the washing liquid is discharged from the plurality of discharge ports 20a over the entire height direction of the washing and dehydrating portion 11A in the washing and dehydrating tub 3 in which the plurality of water passing holes 11a are formed, so that it can Reduce uneven cleaning and uneven rinsing more effectively.
  • FIG. 3 shows the general structure of the driving mechanism 30 of the washing machine 1.
  • the driving mechanism 30 has a motor 31 and clutch devices 32a, 32b, and 32c, and the washing and dewatering tub 3, the rotating blade 5, and the pumping blade 6 are rotationally driven by the driving force generated by the motor 31.
  • the motor 31 is connected to the support shaft 16 connected to the washing and dewatering tub 3, the rotating shaft 5a connected to the rotating wing 5, and the rotating shaft 6a connected to the water pumping wing 6 via clutch devices 32a, 32b, and 32c.
  • the clutch devices 32a, 32b, and 32c are part of the washing machine 1, and a known structure can be used.
  • the clutch device 32a, 32b, 32c can receive the driving force generated by the motor 31 from its motor drive shaft and transfer the driving force to the support shaft 16 connected to the washing and dewatering tub 3, the rotating shaft 5a connected to the rotating wing 5, and the pump The rotating shaft 6a connected to the wing 6 is transmitted or cut off.
  • the state in which the driving force of the motor 31 is transmitted to the support shaft 16, the rotating shaft 5a, and the rotating shaft 6a is set to the on state, and the state where the driving force of the motor 31 is not transmitted to the support shaft 16, The state in which the rotating shaft 5a and the rotating shaft 6a transmit the driving force of the motor 31 is set to an off state.
  • the washing machine 1 by independently controlling the clutch devices 32a, 32b, and 32c, respectively, the washing and dewatering tub 3, the rotating blade 5, and the pumping blade 6 can be independently driven. As shown in FIG. 4 described later, the washing machine 1 can perform the first operation of rotating only the pumping wing 6 and the second operation of rotating only the rotating wing 5 with the washing and dewatering tub 3 stopped during the washing process or rinsing process. .
  • the first operation is an operation in which the pumping vane 6 is rotated and the rotary vane 5 is not rotated during the washing process or the rinsing process. It is an operation of washing or rinsing the laundry by running water discharged from the discharge port 20a of the pumping channel 21.
  • the water stream of the washing liquid discharged from the discharge port 20a collides with the washing in the washing liquid in the washing and dehydrating tank 3, thereby washing the washing.
  • the rotating blade 5 stops, and the laundry in the washing and dewatering tub 3 will not be damaged due to the friction of the rotating blade 5.
  • the second operation is an operation in which the rotating wing 5 is rotated and the pumping wing 6 is not rotated during the washing process or the rinsing process, and is an operation in which the laundry in the washing and dewatering tub 3 is moved by the rotating wing 5.
  • the rotary wing 5 in order to change the relative position of the laundry with respect to the discharge port 20a, the rotary wing 5 is rotationally driven. Specifically, the rotary wing 5 is rotationally driven to move the laundry in the rotation direction by about 30 degrees, for example.
  • FIG. 5 is a control block diagram of the washing machine 1 of this embodiment.
  • the control unit 50 of the washing machine 1 is composed of, for example, a microcomputer, and includes a CPU, a ROM storing a program for controlling the operation of the washing machine 1, and a RAM temporarily storing data and the like used when the program is executed. The operation of the washing machine 1 is controlled by the control unit 50.
  • control part 50 controls the motor 31 to perform each operation of the washing process, the rinsing process, and the spin-drying process.
  • the control unit 50 has a load amount detection unit 51, a rotation control unit 52, and a rotation drive control unit 53.
  • the control unit 50 is connected to the motor 31 and the clutch devices 32a, 32b, and 32c.
  • the load amount detection unit 51 detects the load amount corresponding to the amount of laundry in the washing and dehydrating tub 3. In this embodiment, the load is expressed by the weight of the laundry.
  • the motor 31 In the washing machine 1, when the washing operation is started, the motor 31 is turned on for a short time to rotationally drive the rotary wing 5, and then, when the motor 31 is turned off, the rotary wing 5 rotates by inertia.
  • the load amount detection unit 51 counts the pulse signal synchronized with the rotation of the motor 31 during this inertial rotation period and detects the load amount based on the count value. It should be noted that the greater the load, the greater the resistance to the rotation of the rotor 5, so the duration of inertial rotation becomes shorter.
  • the rotation determination unit 52 determines the rotation speed and the driving time of the rotor 5 during the washing process or the rinsing process based on the load amount detected by the load amount detection unit 51.
  • the rotation determining unit 52 determines in the following manner: the more the load, the more the rotation speed of the rotor 5 is increased and the driving time of the rotor 5 is prolonged, and the less the load, the more the rotor 5 is reduced. Speed and shorten the driving time of the rotary wing 5.
  • the rotation drive control part 53 controls the motor 31 and the clutch devices 32a, 32b, 32c in the state where the washing and dehydration tub 3 is stopped during the washing process or the rinsing process to perform the first operation of rotating only the pumping wing 6 and rotating only the rotating wing Any one of 5's second operation is running.
  • the vertical washing machine 1 of this embodiment includes: an outer tub 2; a washing and dehydrating tub 3, which is rotatably installed in the outer tub 2 and containing laundry; and a pumping path 21, which is provided in the washing and dehydrating tub 3, for washing
  • the bottom 12 of the dehydration tank 3 draws the washing liquid in the washing and dehydration tank 3 and returns the washing liquid to the washing and dehydration tank 3; a plurality of discharge ports 20a as a discharge part discharge the washing liquid from the pumping channel 21 to the washing and dehydration tank 3; the rotating wing 5, which is arranged at the bottom 12 of the washing and dewatering bucket 3, rotates to move the washing in the washing and dewatering bucket 3; the pumping wing 6, which is arranged between the bottom wall of the washing and dewatering bucket 3 and the rotating wing 5.
  • the drive mechanism 30 By rotating the washing liquid in the washing and dehydrating barrel 3 from the bottom 12 of the washing and dehydrating barrel 3 into the pumping channel 21; as a driving unit, the drive mechanism 30 can independently separate the washing and dehydrating barrel 3, the rotating wing 5 and pumping water
  • the wing 6 is rotationally driven; and the rotational drive control unit 52 as a control unit controls the drive mechanism 30 to alternately perform the first operation of driving only the hydrofoil 6 and the second operation of driving only the rotary wing 5 during the washing process and the rinsing process .
  • the laundry in the washing and dehydrating tub 3 can be moved slowly by driving only the second operation of the rotary wing 5 during the washing process and the rinsing process, while passing the main process Only the water flow formed in the washing and dewatering tub 3 due to the discharge of the washing liquid during the first operation of the wing 6 is driven to wash or rinse the laundry.
  • the laundry is washed mainly by driving only the first operation of the hydrofoil 6, the difference in the amount of agitation of the laundry at the bottom and the upper portion of the washing and dewatering tub is small. Therefore, it is possible to prevent the laundry from knotting in the washing and dehydrating tub 3, and to improve the taking out of the laundry from the washing and dehydrating tub 3.
  • step S1 when the user puts the laundry into the washing and dehydrating tub 3 and presses the start key after making appropriate settings, the control unit 50 executes the washing process.
  • the details of the cleaning process will be described later.
  • step S2 the control unit 50 drains the water in the washing and dehydrating tub 3 to perform an intermediate dehydration process.
  • step S3 the control section 50 executes the first rinsing process.
  • the details of the first rinsing process will be described later.
  • step S4 the control unit 50 drains the water in the washing and dehydrating tub 3 to perform an intermediate dehydrating process.
  • step S5 the control section 50 executes the second rinsing process.
  • the work of the second rinsing process is the same as that of the first rinsing process.
  • step S6 the control unit 50 drains the water in the washing and dehydrating tub 3 to perform the final dehydrating process.
  • the final dehydration process ends, the work of the washing process ends.
  • step S101 the control unit 50 executes a routine for determining the rotation speed/driving time of the rotor 5 during the washing process and the rinsing process. It should be noted that the control unit 50 determines the washing water level determined in multiple stages based on the load amount detected in the load amount detection process.
  • step S201 the control unit 50 determines whether the load detected by the load detection unit 51 is 7 kg or more.
  • the control unit 50 determines that the load amount is 7 kg or more, it proceeds to step S202 and determines the rotation speed of the rotor 5 during the washing process and the rinsing process as 150 rpm, and the driving time as 2 seconds.
  • step S201 if the control unit 50 determines that the load is not 7 kg or more, the process proceeds to step S203, and the control unit 50 determines whether the load detected by the load detection unit 51 is 4 kg or more.
  • the control unit 50 determines that the load is 4 kg or more, it proceeds to step S204, and determines the rotation speed of the rotor 5 during the washing process and the rinsing process as 120 rpm, and the driving time as 1.5 seconds.
  • step S203 if the control unit 50 determines that the load is not 4 kg or more, it proceeds to step S205, and determines the rotation speed of the rotor 5 during the washing process and the rinsing process as 100 rpm, and the driving time as 1 second.
  • the vertical washing machine 1 of this embodiment includes a load detection unit that detects the load corresponding to the amount of laundry in the washing and dehydrating tub 3, and the control unit controls the second operation based on the load detected by the load detection unit At least one of the driving time and rotation speed of the rotor in the wing.
  • the rotation speed and the driving time of the rotor 5 in the second operation are controlled according to the load corresponding to the amount of laundry in the washing and dehydrating tub 3, so that the water flow is passed every time When washing or rinsing, the laundry can be moved correctly.
  • step S103 the control unit 50 performs the first operation of driving only the hydrofoil 6.
  • the rotation speed of the hydrofoil 6 in the first operation is 300 rpm, and the driving time is 20 seconds. In this way, the laundry in the washing and dehydrating tub 3 is washed by the water flow by the water flow formed in the washing and dehydrating tub 3 due to the discharge of the washing liquid.
  • step S104 the control unit 50 performs a second operation in which only the rotary blade 5 is driven.
  • the rotation speed and driving time of the rotor 5 in the second operation use the values determined in the rotation speed/driving time determination routine of the rotor 5 in step S101.
  • the laundry in the washing and dewatering tub 3 comes into contact with the rotating wing 5 and moves.
  • control unit 50 rotates and drives the rotary wing 5 in a direction opposite to the predetermined direction (clockwise direction in a plan view) in which the washing and dehydrating tub 3 can rotate. That is, in the second operation, the control unit 50 rotates and drives the rotary blade 5 in the counterclockwise direction in a plan view.
  • the washing and dehydrating tub 3 is arranged to rotate only in a predetermined direction, and the rotation drive control unit 53 as a control unit drives the rotary wing 5 in a direction opposite to the predetermined direction in the second operation.
  • the rotary wing 5 is rotated and driven in the direction in which the washing and dehydrating tub 3 cannot rotate in the second operation. Therefore, it is possible to prevent the laundry from being damaged by the rotation of the rotary wing 5 in the second operation.
  • the washing and dehydrating tub 3 rotates in the moving direction of the laundry. Therefore, the relative position of the discharge port 20a for discharging the washing liquid and the laundry can be reliably changed.
  • step S105 the control unit 50 determines whether or not a predetermined cleaning time has passed.
  • control unit 50 determines in step S105 that the predetermined washing time has not yet elapsed, it proceeds to step S103 and performs the first operation in which only the hydrofoil 6 is driven.
  • step S105 If the control unit 50 determines in step S105 that the predetermined cleaning time has elapsed, the cleaning process ends.
  • the driving time of the hydrofoil 6 in a first operation is 20 seconds
  • the driving time of the rotary wing 5 in a second operation is 2 seconds and 1.5 seconds according to the amount of load. Or 1 second. Therefore, since the first operation and the second operation are performed the same number of times during the cleaning process, the driving time of the first operation is longer than the driving time of the second operation.
  • each time the first operation for example, 20 seconds
  • the second is performed for a shorter period of time.
  • the operation for example, 2 seconds, 1.5 seconds, or 1 second) moves the laundry in the washing and dehydrating tub 3.
  • the laundry in the washing and dewatering tub 3 will move, so that the portion of the laundry in the washing and dewatering tub 3 that collides with the washing liquid discharged from the plurality of discharge ports 20a will change, and the washing in the washing and dewatering tub 3 can be cleaned uniformly. To reduce uneven cleaning.
  • the driving time of the first operation is longer than the driving time of the second operation.
  • the driving time of the first operation in which only the hydrofoil 6 is driven during the washing process is longer than the driving time of the second operation in which only the rotary blade 5 is driven.
  • the objects are knotted in the washing and dewatering tank 3. Therefore, the taking out of the laundry from the washing and dehydrating tank 3 can be further improved.
  • step S301 the control unit 50 executes a routine for determining the rotation speed/driving time of the rotor 5 during the washing process and the rinsing process. It should be noted that the control unit 50 determines the rinse water level determined in multiple stages based on the load amount detected in the load amount detection process. The operation of the rotation speed/driving time determination routine of the rotor 5 is the same as that of step S101.
  • step S302 the control unit 50 supplies water to the washing and dehydrating tub 3 to the rinse water level determined by the load detection process.
  • step S303 the control unit 50 performs the first operation of driving only the hydrofoil 6.
  • the rotation speed of the hydrofoil 6 in the first operation is 300 rpm, and the driving time is 20 seconds. In this way, the laundry in the washing and dehydrating tub 3 is rinsed by the water flow by the water flow formed in the washing and dehydrating tub 3 due to the discharge of the washing liquid.
  • step S304 the control unit 50 performs a second operation in which only the rotor blade 5 is driven.
  • the rotation speed and driving time of the rotor 5 in the second operation use the values determined in the rotation speed/driving time determination routine of the rotor 5 in step S301.
  • the laundry in the washing and dehydrating tub 3 comes into contact with the rotating wing 5 and moves.
  • step S305 the control unit 50 determines whether a predetermined rinsing time has elapsed.
  • control unit 50 determines in step S305 that the predetermined rinsing time has not yet elapsed, it proceeds to step S303 and performs the first operation in which only the hydrofoil 6 is driven.
  • step S305 When the control unit 50 determines in step S305 that the predetermined rinsing time has elapsed, the rinsing process ends.
  • the driving time of the hydrofoil 6 in a first operation is 20 seconds.
  • the driving time of the rotary wing 5 in a second operation is 2 seconds, 1.5 seconds, or 1 second. Therefore, since the first operation and the second operation are performed the same number of times during the rinsing process, the driving time of the first operation is longer than the driving time of the second operation.
  • the laundry in the washing and dewatering tub 3 will move, so that the portion of the laundry in the washing and dewatering tub 3 that collides with the washing liquid discharged from the plurality of discharge ports 20a will change, and the washing in the washing and dewatering tub 3 can be rinsed evenly. To reduce uneven rinsing.
  • the driving time of the first operation is longer than the driving time of the second operation.
  • the driving time of the first operation in which only the hydrofoil 6 is driven during the rinsing process is longer than the driving time of the second operation in which only the rotary wing 5 is driven. Therefore, washing can be more effectively suppressed.
  • the objects are knotted in the washing and dewatering tank 3. Therefore, the taking out of the laundry from the washing and dehydrating tank 3 can be further improved.
  • the washing and dewatering tank 3 has a pumping channel 21 and three discharge ports 20a respectively communicating with the washing and dewatering tank 3.
  • the three discharge ports 20a extend in the longitudinal direction, but the number, shape, and number of the discharge ports 20a The configuration is not limited to this.
  • the plurality of discharge ports 20a may each extend in an oblique direction.
  • the plurality of discharge ports 20a discharge the washing liquid in the entire height direction of the washing and dehydrating portion 11A in the washing and dehydrating tub 3 where the plurality of water passing holes 11a are formed, but it is not limited to this.
  • the plurality of discharge ports 20a may not discharge the washing liquid in the entire height direction of the washing and dehydrating section 11A.
  • the sum of the longitudinal lengths of the plurality of discharge ports 20a is approximately the same as the length of the washing and dehydrating section 11A in the height direction, so that the washing liquid is discharged in the entire height direction of the washing and dehydrating section 11A.
  • the vertical length of each discharge port 20a is short so that the total length of the plurality of discharge ports 20a is shorter than the length of the washing and dehydrating section 11A in the height direction, the vertical length from the discharge port 20a may be greater than the vertical length of the discharge port 20a.
  • the washing liquid is discharged by spreading over a wide range, thereby discharging the washing liquid in the entire height direction of the washing and dehydrating section 11A.
  • both the rotation speed and the driving time of the rotor 5 in the second operation are controlled according to the load during the washing process and the rinsing process.
  • the second operation is The rotation speed and driving time of the rotor 5 are the same.
  • only the rotation speed of the rotor 5 in the second operation may be controlled according to the load, or only the driving time of the rotor 5 in the second operation is controlled according to the load.
  • the vertical washing machine 1 having the washing and dehydrating tub 3 that rotates about a rotation axis parallel to the vertical direction has been described, but the present invention includes the vertical washing machine 1 having an inclination of 0 to 10 degrees with respect to the vertical direction.
  • the laundry in the second operation, is moved in a 30-degree rotation direction by the rotational drive of the rotary wing 5, but the amount of the laundry moved in the rotational direction by the rotational drive of the rotary wing 5 is arbitrary.
  • the rotary wing 5 is rotationally driven in the direction in which the washing and dehydration tub 3 cannot rotate in the second operation, but the rotary wing 5 may be rotationally driven in the direction in which the washing and dehydration tub 3 can rotate in the second operation.
  • the second operation is started after the first operation ends in the washing process and the rinsing process, and the first operation and the second operation are performed alternately, but it is not limited to this.
  • the first operation when the second operation is started before the end of the first operation during the washing process and the rinsing process, the first operation, the operation of driving both the pumping blade 6 and the rotary blade 5, and the second operation are repeated.
  • the first operation and the second operation are also alternately performed.
  • performing the so-called first operation and the second operation alternately during the washing process and the rinsing process means performing the second operation after the first operation, and then repeating the first operation and the second operation.
  • the washing process and the rinsing process may include operations other than the first operation and operations other than the second operation.
  • the number of the first operation is the same as the number of the second operation, but the number of the first operation may be different from the number of the second operation.
  • the present invention includes a case where the first operation and the second operation are alternately performed during the washing process or the rinsing process.
  • the first operation and the second operation are alternately performed during the washing process and the rinsing process.
  • the first operation and the second operation may be alternately performed during at least one of the cleaning process and the rinsing process.

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

Abstract

一种立式洗衣机（1），具备：外桶（2）；洗涤脱水桶（3），以可旋转的方式设置于所述外桶（2）内，收容洗涤物；抽水路（21），设置于所述洗涤脱水桶（3），用于从所述洗涤脱水桶（3）的底部（12）汲取洗涤脱水桶（3）内的洗涤液并使其返回至洗涤脱水桶（3）内；多个排出口（20a），将洗涤液从所述抽水路（21）排出至洗涤脱水桶（3）内；旋转翼（5），设置于所述洗涤脱水桶（3）的底部（12），通过旋转来使所述洗涤脱水桶（3）内的洗涤物移动；抽水翼（6），设置于所述洗涤脱水桶（3）的底部（12）与旋转翼（5）之间，通过旋转来将所述洗涤脱水桶（3）内的洗涤液从洗涤脱水桶（3）的底部（12）送入抽水路（21）；驱动机构（30），能分别独立地对所述洗涤脱水桶（3）、旋转翼（5）以及抽水翼（6）进行旋转驱动；以及旋转驱动控制部（53），控制所述驱动机构（30），清洗过程和漂洗过程中交替进行只驱动所述抽水翼（6）的第一运转和只驱动旋转翼（5）的第二运转。所述立式洗衣机（1）能抑制洗涤物在洗涤脱水桶（3）内打结。

Description

立式洗衣机 技术领域
本发明涉及例如进行清洗过程和漂洗过程的立式洗衣机。
背景技术
以往，一般而言，在立式洗衣机的清洗过程中，在洗涤脱水桶的底部对旋转翼进行旋转驱动，使被旋转驱动的旋转翼与洗涤物接触，通过旋转翼的摩擦来清洗洗涤物。
此外，作为现有的立式洗衣机，有一种洗衣机在洗涤脱水桶的底部对旋转翼进行旋转驱动，并且抽水翼以自由旋转的方式配置在洗涤脱水桶的底壁与旋转翼之间(参照专利文献1)。在抽水翼的上表面设有外圈齿轮，在与其对置的旋转翼的下表面，以自由旋转的方式分别设有多个与抽水翼的外圈齿轮啮合的行星齿轮。在洗涤脱水桶的底部固定有太阳齿轮，行星齿轮与太阳齿轮的周围啮合，形成在太阳齿轮的周围旋转的结构。
专利文献1的立式洗衣机中，在洗涤、漂洗时，通过驱动马达来使旋转翼正转、反转并通过设置于旋转翼的搅拌翼部的摩擦来清洗衣物，但与此同时，旋转翼的旋转被传递至设置于抽水翼的外圈齿轮，将由抽水翼从洗涤桶的下部抽到上部的洗涤液排出到洗涤桶。
现有技术文献
专利文献
专利文献1：日本特开2009－28509号公报
发明内容
发明所要解决的问题
现有的立式洗衣机中，在清洗过程中通过旋转翼的摩擦来清洗洗涤脱水桶内的洗涤物，但是存在洗涤物于洗涤脱水桶内打结的问题。如果在洗涤物于清洗过程中打结的状态下进行脱水过程的话，在脱水过程结束后从洗涤脱水桶内取出洗涤物时，需要一边消除洗涤物的打结一边取出洗涤物，洗涤物从洗涤脱水桶内的取出性非常差。需要说明的是，在漂洗过程中也一样，存在洗涤物于洗涤脱水桶内打结的问题。
用于解决问题的方案
本发明的发明人对清洗过程、漂洗过程中洗涤脱水桶内的洗涤物打结的主要原因进行了研究，认为主要原因是：通过旋转翼的摩擦来大幅搅拌洗涤物的洗涤脱水桶的底部与洗涤物不接触旋转翼的洗涤脱水桶的上部在洗涤物的搅拌量上存在差别。
因此，相对于现有的立式洗衣机中通过在洗涤脱水桶的底部被旋转驱动的旋转翼的摩擦来清洗洗涤物，本发明的发明人对以下的方法进行了研究：从洗涤脱水桶的侧面排出洗涤液而在洗涤脱水桶内形成水流，通过该水流在洗涤脱水桶内清洗洗涤物。
本发明的发明人进行了该研究，结果发现，在通过向洗涤脱水桶内排出洗涤液后于洗涤脱水桶内形成的水流来进行清洗的情况下，洗涤脱水桶的底部与上部的洗涤物的搅拌量的差较小，因此能抑制洗涤物在洗涤脱水桶内打结。需要说明的是，上述专利文献1的立式洗衣机中，由于抽水翼和旋转翼同时被旋转驱动，因此无法在不旋转驱动旋转翼的情况下只旋转驱动抽水翼。
即，本发明的立式洗衣机的特征在于，具备：外桶；洗涤脱水桶，以可旋转的方式设置于所述外桶内，收容洗涤物；抽水路，设置于所述洗涤脱水桶，用于从所述洗涤脱水桶的底部汲取所述洗涤脱水桶内的洗涤液并使该洗涤液返回至所述洗涤脱水桶内；排出部，将洗涤液从所述抽水路排出至所述洗涤脱水桶内；旋转翼，设置于所述洗涤脱水桶的底部，通过旋转来使洗涤物在所述洗涤脱水桶内移动；抽水翼，设置于所述洗涤脱水桶的底壁与所述旋转翼之间，通过旋转来将所述洗涤脱水桶内的洗涤液从所述洗涤脱水桶的底部送入所述抽水路；驱动单元，能分别独立地对所述洗涤脱水桶、所述旋转翼以及所述抽水翼进行旋转驱动；以及控制单元，控制所述驱动单元，在清洗过程和漂洗过程 的至少一方交替进行只驱动所述抽水翼的第一运转和只驱动所述旋转翼的第二运转。
此外，本发明的特征在于，在清洗过程或漂洗过程中，所述第一运转的驱动时间比所述第二运转的驱动时间长。
此外，本发明的特征在于，所述洗涤脱水桶被配置为只能向规定方向旋转，所述控制单元在所述第二运转中向与所述规定方向相反的方向驱动所述旋转翼。
此外，本发明优选的是：具备检测与所述洗涤脱水桶内的洗涤物的量对应的负荷量的负荷量检测单元，所述控制单元根据由所述负荷量检测单元检测出的负荷量来控制所述第二运转中的所述旋转翼的驱动时间和转速的至少一方。
此外，本发明优选的是：所述排出部包括分别沿纵向或倾斜方向延伸的多个排出口。
此外，本发明优选的是：所述多个排出口在所述洗涤脱水桶中的形成有多个通水孔的洗涤脱水部的整个高度方向上排出洗涤液。
发明效果
本发明的立式洗衣机中，能在清洗过程、漂洗过程中一边通过只驱动旋转翼的第二运转来使洗涤脱水桶内的洗涤物徐徐移动，一边通过主要在进行只驱动抽水翼的第一运转时因洗涤液的排出而在洗涤脱水桶内形成的水流来对洗涤物进行清洗或漂洗。
因此，由于主要通过只驱动抽水翼的第一运转来清洗洗涤物，因而洗涤脱水桶的底部与上部的洗涤物的搅拌量的差较小。因此，能抑制洗涤物在洗涤脱水桶内打结，提高洗涤物从洗涤脱水桶内的取出性。
此外，每次通过水流进行清洗或漂洗时都使洗涤物移动，由此排出洗涤液的排出部与洗涤物在洗涤脱水桶内的相对位置会发生变化。因此，能减少清洗不均、漂洗不均，对处于洗涤脱水桶内的洗涤物的整体均匀地进行清洗或漂洗。
本发明的立式洗衣机中，清洗过程、漂洗过程中只驱动抽水翼的第一运转的驱动时间比只驱动旋转翼的第二运转的驱动时间长，因此能更有效地抑制洗 涤物在洗涤脱水桶内打结。因此，能进一步提高洗涤物从洗涤脱水桶内的取出性。
本发明的立式洗衣机中，第二运转中旋转翼向洗涤脱水桶不能旋转的方向被旋转驱动，因此能防止在第二运转中洗涤物因旋转翼的旋转而移动时洗涤脱水桶向洗涤物的移动方向旋转。因此，能使排出洗涤液的排出部与洗涤物的相对位置可靠地发生变化。
本发明的立式洗衣机中，根据与洗涤脱水桶内的洗涤物的量对应的负荷量来控制第二运转中的旋转翼的转速和驱动时间的至少一方，因此每次通过水流进行清洗或漂洗时都能使洗涤物正确地移动。
本发明的立式洗衣机中，排出部包括多个分别沿纵向或倾斜方向延伸的排出口，因此能在洗涤脱水桶内的高度方向的较大范围内排出洗涤液。因此，能有效地减少清洗不均、漂洗不均。
本发明的立式洗衣机中，在洗涤脱水桶中的形成有多个通水孔的洗涤脱水部的整个高度方向上从多个排出口排出洗涤液，因此能更有效地减少清洗不均、漂洗不均。
附图说明
图1是本发明的实施方式的立式洗衣机1的示意性剖视图。
图2是对形成于立式洗衣机1的洗涤脱水桶3的三个排出口20a的配置进行说明的图。
图3是表示立式洗衣机1的驱动机构30的大致结构的图。
图4是对立式洗衣机1的第一运转和第二运转进行说明的图。
图5是立式洗衣机1的控制框图。
图6是表示立式洗衣机1的洗涤过程的工作的流程图。
图7是表示立式洗衣机1的清洗过程的工作的流程图。
图8是表示旋转翼5的转速/驱动时间确定例程的工作的流程图。
图9是表示立式洗衣机1的漂洗过程的工作的流程图。
附图标记说明
1：立式洗衣机；2：外桶；3：洗涤脱水桶；5：旋转翼；6：抽水翼；11a：通水孔；11A：洗涤脱水部；12：洗涤脱水桶的底部；31：马达；20a：排出口(排出部)；21：抽水路；30：驱动机构(驱动单元)；51：负荷量检测部(负荷量检测单元)；52：旋转控制部；53：旋转驱动控制部(控制单元)。
具体实施方式
以下，参照附图，对本发明的实施方式的立式洗衣机1进行说明。图1是本发明的实施方式的立式洗衣机1的示意性剖视图。
立式洗衣机1(以下，有时称为洗衣机1)具有作为洗衣机主体的箱体(未图示)，在箱体的内部通过未图示的多根吊棒悬吊支承有有底圆筒形状的外桶2。
外桶2一体地具有沿上下方向延伸的圆筒状的侧壁7和堵住侧壁7的下端的底壁8。外桶2的上端通过侧壁7的上端缘形成有开口2a。在底壁8的中心位置形成有贯通孔10。洗涤液(混有洗涤剂的水、淡水)从底壁8侧蓄至外桶2。
洗涤脱水桶3收容于外桶2内，收容有洗涤物。洗涤脱水桶3一体地具有沿上下延伸的圆筒状的侧壁11和堵住侧壁11的下端的底部12。通过洗涤脱水桶3的侧壁11的上端缘形成有开口3a，在开口3a附近配置有平衡装置3b。
洗涤脱水桶3兼作脱水桶，在位于平衡装置3b下方的侧壁11形成有许多通水孔11a。因此，侧壁11具有在平衡装置3b的下方形成有许多通水孔11a的部分即洗涤脱水部11A。
洗涤脱水桶3按照以固定于其底部12的支承轴16为中心自由旋转的方式被轴支承。支承轴16被未图示的单向轴承以自由旋转的方式轴支承，因此只能向规定方向(俯视时为顺时针方向)旋转，不能向与规定方向相反的方向(俯视时为逆时针方向)旋转。支承轴16沿着铅垂方向，洗涤脱水桶3绕与铅垂方向平行的旋转轴进行旋转。
洗涤脱水桶3的底部12具有上侧的第一底壁17和下侧的第二底壁18，在第一底壁17与第二底壁18之间形成有空间12a。
第一底壁17形成为环状，与洗涤脱水桶3的侧壁11的下端部连接。第一底壁17中存在不与洗涤脱水桶3的底部12连接的部分，在该部分连结有上下延伸的罩20。
罩20以与侧壁11对置的状态连接并沿侧壁11向上方延伸。罩20与侧壁11成为一体，构成管状的抽水路21。在抽水路21的下端设有与空间12a连通的吸入口22，在抽水路21的上端设有与洗涤脱水桶3内连通的排出口20a。
在洗涤脱水桶3的底部12设有旋转翼5。旋转翼5是用于在清洗过程和漂洗过程中通过旋转来使洗涤脱水桶3内的洗涤物移动的构件。
在洗涤脱水桶3的底部12与旋转翼5之间的空间12a设有抽水翼6。抽水翼6通过旋转来将洗涤脱水桶3内的洗涤液从洗涤脱水桶3的底部12送入抽水路21。
抽水翼6按照以嵌插于支承轴16的旋转轴6a为中心自由旋转的方式设置，旋转翼5按照以嵌插于旋转轴6a的旋转轴5a为中心自由旋转的方式设置。
洗涤脱水桶3具有抽水路21和分别与洗涤脱水桶3内连通的三个排出口20a。三个排出口20a以俯视时隔开大致120度的方式配置，以分别沿纵向延伸的方式形成。图2是从洗涤脱水桶3的内侧分别观察三个排出口20a的图，三个排出口20a配置于互不相同的高度。
三个排出口20a分别具有相同的纵向长度，该纵向长度是形成有许多通水孔11a的部分即洗涤脱水部11A的纵向长度的约三分之一。因此，三个排出口20a的纵向长度的总和与洗涤脱水部11A的纵向长度大致相同。因此，三个排出口20a在洗涤脱水桶3的洗涤脱水部11A的整个高度方向上排出洗涤液。由此，本实施方式的立式洗衣机1中，无论洗涤脱水桶3内的洗涤物的量如何，都能在洗涤脱水桶3内产生水流。
在本实施方式的立式洗衣机1中，包括分别沿纵向延伸的多个排出口20a来作为排出部。
由此，本实施方式的立式洗衣机1中，由于包括分别沿纵向延伸的多个排 出口20a来作为排出部，因此能在洗涤脱水桶3内的高度方向的较大范围内排出洗涤液。因此，能有效地减少清洗不均、漂洗不均。
在本实施方式的立式洗衣机1中，多个排出口20a在洗涤脱水桶3中的形成有多个通水孔11a的洗涤脱水部11A的整个高度方向上排出洗涤液。
由此，本实施方式的立式洗衣机1中，在洗涤脱水桶3中的形成有多个通水孔11a的洗涤脱水部11A的整个高度方向上从多个排出口20a排出洗涤液，因此能更有效地减少清洗不均、漂洗不均。
基于图3来说明对洗涤脱水桶3、旋转翼5以及抽水翼6进行旋转驱动的驱动机构30。图3示出了洗衣机1的驱动机构30的大致结构。
驱动机构30具有马达31和离合装置32a、32b、32c，通过马达31所产生的驱动力来分别对洗涤脱水桶3、旋转翼5以及抽水翼6进行旋转驱动。
具体而言，马达31经由离合装置32a、32b、32c连接于与洗涤脱水桶3连接的支承轴16、与旋转翼5连接的旋转轴5a以及与抽水翼6连接的旋转轴6a。离合装置32a、32b、32c是洗衣机1的一部分，能使用公知的结构。
离合装置32a、32b、32c能从其马达驱动轴接受马达31所产生的驱动力并将该驱动力向与洗涤脱水桶3连接的支承轴16、与旋转翼5连接的旋转轴5a、与抽水翼6连接的旋转轴6a传递或切断。
本实施方式中，针对离合装置32a、32b、32c的状态，将向支承轴16、旋转轴5a以及旋转轴6a传递马达31的驱动力的状态设为接通状态，将不向支承轴16、旋转轴5a以及旋转轴6a传递马达31的驱动力的状态设为断开状态。
因此，洗衣机1中，能通过分别独立地控制离合装置32a、32b、32c来分别独立地驱动洗涤脱水桶3、旋转翼5、抽水翼6。洗衣机1如后述的图4所示，能在清洗过程或漂洗过程中在停止洗涤脱水桶3的状态下进行只旋转驱动抽水翼6的第一运转和只旋转驱动旋转翼5的第二运转。
第一运转是在清洗过程或漂洗过程中旋转驱动抽水翼6并且不旋转驱动旋转翼5的运转，是通过从抽水路21的排出口20a排出的流水来对洗涤物进行清洗或漂洗的运转。第一运转中，从排出口20a排出的洗涤液的水流与处于洗涤脱水桶3的洗涤液内的洗涤物碰撞，由此来清洗洗涤物。这时，旋转翼5停止， 不会因旋转翼5的摩擦而损伤洗涤脱水桶3内的洗涤物。
第二运转是在清洗过程或漂洗过程中旋转驱动旋转翼5并且不旋转驱动抽水翼6的运转，是通过旋转翼5来使洗涤脱水桶3内的洗涤物移动的运转。第二运转中，为了使洗涤物相对于排出口20a的相对位置变化而旋转驱动旋转翼5，具体而言，通过旋转翼5的旋转驱动，洗涤物向旋转方向移动例如约30度。
图5是本实施方式的洗衣机1的控制框图。洗衣机1的控制部50如图5所示，由例如微型计算机等构成，具备CPU、储存有控制洗衣机1的工作的程序的ROM以及临时存储执行上述程序时所用的数据等的RAM。洗衣机1的运转工作由该控制部50控制。
本实施方式的立式洗衣机1中，控制部50控制马达31以进行清洗过程、漂洗过程以及脱水过程的各个运转。
控制部50具有负荷量检测部51、旋转控制部52以及旋转驱动控制部53。控制部50连接有马达31和离合装置32a、32b、32c。
负荷量检测部51检测与洗涤脱水桶3内的洗涤物的量对应的负荷量。本实施方式中，负荷量用洗涤物的重量表示。洗衣机1中，在开始洗涤工作时，短时间地接通马达31来对旋转翼5进行旋转驱动，然后，当断开马达31时，旋转翼5惯性旋转。
负荷量检测部51在该惯性旋转期间对与马达31的旋转同步的脉冲信号进行计数并根据该计数值来检测负荷量。需要说明的是，由于负荷量越大则对旋转翼5的旋转的阻力就越大，因此惯性旋转的持续时间变短。
旋转确定部52根据由负荷量检测部51检测出的负荷量来确定清洗过程或漂洗过程中的旋转翼5的转速和驱动时间。
具体而言，旋转确定部52以如下的方式进行确定：负荷量越多则越是增大旋转翼5的转速并且延长回转翼5的驱动时间，负荷量越少则越是减小旋转翼5的转速并且缩短旋转翼5的驱动时间。
旋转驱动控制部53在清洗过程或漂洗过程中在洗涤脱水桶3停止的状态下控制马达31和离合装置32a、32b、32c以进行只旋转驱动抽水翼6的第一运转和只旋转驱动旋转翼5的第二运转中的任一项运转。
本实施方式的立式洗衣机1具备：外桶2；洗涤脱水桶3，以可旋转的方式设置于外桶2内并收容洗涤物；抽水路21，设置于洗涤脱水桶3，用于从洗涤脱水桶3的底部12汲取洗涤脱水桶3内的洗涤液并使该洗涤液返回至洗涤脱水桶3内；作为排出部的多个排出口20a，将洗涤液从抽水路21排出至洗涤脱水桶3内；旋转翼5，设置于洗涤脱水桶3的底部12，通过旋转来使洗涤脱水桶3内的洗涤物移动；抽水翼6，设置于洗涤脱水桶3的底壁与旋转翼5之间，通过旋转来将洗涤脱水桶3内的洗涤液从洗涤脱水桶3的底部12送入抽水路21；作为驱动单元的驱动机构30，能分别独立地对洗涤脱水桶3、旋转翼5以及抽水翼6进行旋转驱动；以及作为控制单元的旋转驱动控制部52，控制驱动机构30，在清洗过程和漂洗过程中交替进行只驱动抽水翼6的第一运转和只驱动旋转翼5的第二运转。
由此，本实施方式的立式洗衣机1中，能在清洗过程、漂洗过程中一边通过只驱动旋转翼5的第二运转来使洗涤脱水桶3内的洗涤物徐徐移动，一边通过主要在进行只驱动抽水翼6的第一运转时因洗涤液的排出而在洗涤脱水桶3内形成的水流来对洗涤物进行清洗或漂洗。
因此，由于主要通过只驱动抽水翼6的第一运转来清洗洗涤物，因而洗涤脱水桶的底部与上部的洗涤物的搅拌量的差较小。因此，能抑制洗涤物在洗涤脱水桶3内打结，提高洗涤物从洗涤脱水桶3内的取出性。
此外，每次通过水流进行清洗或漂洗时都使洗涤物移动，由此排出洗涤液的多个排出口20a与洗涤物在洗涤脱水桶3内的相对位置会发生变化。因此，能减少清洗不均、漂洗不均，对处于洗涤脱水桶3内的洗涤物的整体均匀地进行清洗或漂洗。
基于图6，对洗衣机1的洗涤过程的工作进行说明。
＜步骤S1＞
步骤S1中，当使用者将洗涤物投入洗涤脱水桶3内并进行适当的设定后按下开始键时，控制部50执行清洗过程。清洗过程的详细情况在后文进行说明。
＜步骤S2＞
当清洗过程结束时，步骤S2中，控制部50将洗涤脱水桶3内的水排出， 执行中间脱水过程。
＜步骤S3＞
然后，当中间脱水过程结束时，步骤S3中，控制部50执行第一漂洗过程。第一漂洗过程的详细情况在后文进行说明。
＜步骤S4＞
当第一漂洗过程结束时，步骤S4中，控制部50将洗涤脱水桶3内的水排出，执行中间脱水过程。
＜步骤S5＞
然后，当中间脱水过程结束时，步骤S5中，控制部50执行第二漂洗过程。第二漂洗过程的工作与第一漂洗过程的工作相同。
＜步骤S6＞
当第二漂洗过程结束时，步骤S6中，控制部50将洗涤脱水桶3内的水排出，执行最终脱水过程。当最终脱水过程结束时，洗涤过程的工作结束。
(清洗过程的工作)
基于图7，对洗衣机1的清洗过程的工作进行说明。
＜步骤S101＞
步骤S101中，控制部50执行清洗过程和漂洗过程中的旋转翼5的转速/驱动时间确定例程。需要说明的是，控制部50根据在负荷量检测处理中检测出的负荷量来确定分多个阶段决定的洗涤水位。
基于图8，对旋转翼5的转速/驱动时间确定例程的工作进行说明。
＜步骤S201、S202＞
步骤S201中，控制部50判定由负荷量检测部51检测出的负荷量是否为7kg以上。在控制部50判定负荷量为7kg以上的情况下，进入步骤S202，将清洗过程和漂洗过程中的旋转翼5的转速确定为150rpm，将驱动时间确定为2秒。
＜步骤S203、S204＞
步骤S201中，在控制部50判定负荷量不为7kg以上的情况下，进入步骤S203，控制部50判定由负荷量检测部51检测出的负荷量是否为4kg以上。在控制部50判定负荷量为4kg以上的情况下，进入步骤S204，将清洗过程和漂洗过程中的旋转翼5的转速确定为120rpm，将驱动时间确定为1.5秒。
＜步骤S205＞
步骤S203中，在控制部50判定负荷量不为4kg以上的情况下，进入步骤S205，将清洗过程和漂洗过程中的旋转翼5的转速确定为100rpm，将驱动时间确定为1秒。
本实施方式的立式洗衣机1中具备检测与洗涤脱水桶3内的洗涤物的量对应的负荷量的负荷量检测单元，控制单元根据由负荷量检测单元检测出的负荷量来控制第二运转中的旋转翼的驱动时间和转速的至少一方。
由此，本实施方式的立式洗衣机1中，根据与洗涤脱水桶3内的洗涤物的量对应的负荷量来控制第二运转中的旋转翼5的转速和驱动时间，因此每次通过水流进行清洗或漂洗时都能使洗涤物正确地移动。
＜步骤S102＞
当在旋转翼5的转速/驱动时间确定例程中确定了清洗过程和漂洗过程中的旋转翼5的转速和驱动时间时，返回图7的流程图，在步骤S102中，控制部50向洗涤脱水桶3内供水至由负荷量检测处理确定的洗涤水位。
＜步骤S103＞
当向洗涤脱水桶3内供水至洗涤水位时，步骤S103中，控制部50进行只驱动抽水翼6的第一运转。第一运转中的抽水翼6的转速为300rpm，驱动时间为20秒。由此，通过因洗涤液的排出而在洗涤脱水桶3内形成的水流，洗涤脱水桶3内的洗涤物被水流清洗。
＜步骤S104＞
当第一运转结束时，步骤S104中，控制部50进行只驱动旋转翼5的第二运转。第二运转中的旋转翼5的转速和驱动时间使用在步骤S101的旋转翼5的转速/驱动时间确定例程中确定的值。由此，洗涤脱水桶3内的洗涤物与被旋转 驱动的旋转翼5接触而移动。
控制部50在第二运转中向与洗涤脱水桶3能旋转的规定方向(俯视时的顺时针方向)相反的方向旋转驱动旋转翼5。即，控制部50在第二运转中向俯视时的逆时针方向旋转驱动旋转翼5。
本实施方式的立式洗衣机1中，洗涤脱水桶3被配置为只能向规定方向旋转，作为控制单元的旋转驱动控制部53在第二运转中向与规定方向相反的方向驱动旋转翼5。
由此，本实施方式的立式洗衣机1中，在第二运转中向洗涤脱水桶3不能旋转的方向旋转驱动旋转翼5，因此能防止在第二运转中洗涤物因旋转翼5的旋转而移动时洗涤脱水桶3向洗涤物的移动方向旋转。因此，能使排出洗涤液的排出口20a与洗涤物的相对位置可靠地发生变化。
＜步骤S105＞
当第二运转结束时，步骤S105中，控制部50判定是否经过了规定的清洗时间。
在步骤S105中控制部50判定为尚未经过规定的清洗时间的情况下，进入步骤S103，进行只驱动抽水翼6的第一运转。
在步骤S105中控制部50判定为经过了规定的清洗时间的情况下，结束清洗过程。
本实施方式中，在清洗过程中，相对于一次第一运转中的抽水翼6的驱动时间为20秒，根据负荷量，一次第二运转中的旋转翼5的驱动时间为2秒、1.5秒或1秒。因此，由于清洗过程中进行相同次数的第一运转和第二运转，因此第一运转的驱动时间比第二运转的驱动时间长。
如此一来，立式洗衣机1中，每当通过进行较长时间的第一运转(例如20秒)来进行洗涤脱水桶3内的洗涤物的水流清洗时，都会通过进行较短时间的第二运转(例如2秒、1.5秒或1秒)来使洗涤脱水桶3内的洗涤物移动。
洗涤脱水桶3内的洗涤物会移动，由此洗涤脱水桶3内的洗涤物中与从多个排出口20a排出的洗涤液碰撞的部分会变化，能均匀地清洗洗涤脱水桶3内 的洗涤物，减少清洗不均。
本实施方式的立式洗衣机1中，在清洗过程中，第一运转的驱动时间比第二运转的驱动时间长。
由此，本实施方式的立式洗衣机1中，清洗过程中只驱动抽水翼6的第一运转的驱动时间比只驱动旋转翼5的第二运转的驱动时间长，因此能更有效地抑制洗涤物在洗涤脱水桶3内打结。因此，能进一步提高洗涤物从洗涤脱水桶3内的取出性。
(漂洗过程的工作)
基于图9，对洗衣机1的漂洗过程的工作进行说明。
＜步骤S301＞
步骤S301中，控制部50执行清洗过程和漂洗过程中的旋转翼5的转速/驱动时间确定例程。需要说明的是，控制部50根据在负荷量检测处理中检测出的负荷量来确定分多个阶段决定的漂洗水位。旋转翼5的转速/驱动时间确定例程的工作与步骤S101相同。
＜步骤S302＞
步骤S302中，控制部50向洗涤脱水桶3内供水至由负荷量检测处理确定的漂洗水位。
＜步骤S303＞
当向洗涤脱水桶3内供水至漂洗水位时，步骤S303中，控制部50进行只驱动抽水翼6的第一运转。第一运转中的抽水翼6的转速为300rpm，驱动时间为20秒。由此，通过因洗涤液的排出而在洗涤脱水桶3内形成的水流，洗涤脱水桶3内的洗涤物被水流漂洗。
＜步骤S304＞
当第一运转结束时，步骤S304中，控制部50进行只驱动旋转翼5的第二运转。第二运转中的旋转翼5的转速和驱动时间使用在步骤S301的旋转翼5的转速/驱动时间确定例程中确定的值。由此，洗涤脱水桶3内的洗涤物与被旋转驱动的旋转翼5接触而移动。
＜步骤S305＞
当第二运转结束时，步骤S305中，控制部50判定是否经过了规定的漂洗时间。
在步骤S305中控制部50判定为尚未经过规定的漂洗时间的情况下，进入步骤S303，进行只驱动抽水翼6的第一运转。
在步骤S305中控制部50判定为经过了规定的漂洗时间的情况下，结束漂洗过程。
本实施方式中，与清洗过程一样，在漂洗过程中，相对于一次第一运转中的抽水翼6的驱动时间为20秒，根据负荷量，一次第二运转中的旋转翼5的驱动时间为2秒、1.5秒或1秒。因此，由于漂洗过程中进行相同次数的第一运转和第二运转，因此第一运转的驱动时间比第二运转的驱动时间长。
如此一来，立式洗衣机1中，每当通过进行较长时间的第一运转(例如20秒)来进行洗涤脱水桶3内的洗涤物的水流漂洗时，都会通过进行较短时间的第二运转(例如2秒、1.5秒或1秒)来使洗涤脱水桶3内的洗涤物移动。
洗涤脱水桶3内的洗涤物会移动，由此洗涤脱水桶3内的洗涤物中与从多个排出口20a排出的洗涤液碰撞的部分会变化，能均匀地漂洗洗涤脱水桶3内的洗涤物，减少漂洗不均。
本实施方式的立式洗衣机1中，在漂洗过程中，第一运转的驱动时间比第二运转的驱动时间长。
由此，本实施方式的立式洗衣机1中，漂洗过程中只驱动抽水翼6的第一运转的驱动时间比只驱动旋转翼5的第二运转的驱动时间长，因此能更有效地抑制洗涤物在洗涤脱水桶3内打结。因此，能进一步提高洗涤物从洗涤脱水桶3内的取出性。
以上，对本发明的实施方式进行了说明，但是各个部分的具体结构不仅局限于上述的实施方式。
例如，上述实施方式中，洗涤脱水桶3具有抽水路21和分别与洗涤脱水桶3内连通的三个排出口20a，三个排出口20a分别沿纵向延伸，但是排出口20a 的数量、形状、配置不局限于此。例如，多个排出口20a也可以分别沿倾斜方向延伸。
上述实施方式中，多个排出口20a在洗涤脱水桶3中的形成有多个通水孔11a的洗涤脱水部11A的整个高度方向上排出洗涤液，但是不局限于此。多个排出口20a也可以不在洗涤脱水部11A的整个高度方向上排出洗涤液。
上述实施方式中，多个排出口20a的纵向长度的总和与洗涤脱水部11A的高度方向的长度大致相同，由此在洗涤脱水部11A的整个高度方向上排出洗涤液，但是，在例如因多个排出口20a的纵向长度短而使得多个排出口20a的纵向长度的总和比洗涤脱水部11A的高度方向的长度短的情况下，也可以从排出口20a以向比排出口20a的纵向长度大的范围扩散的方式排出洗涤液，由此在洗涤脱水部11A的整个高度方向上排出洗涤液。
上述实施方式中，在清洗过程和漂洗过程中根据负荷量来控制第二运转中的旋转翼5的转速和驱动时间这两者，但是，也可以是，无论负荷量如何，第二运转中的旋转翼5的转速和驱动时间都相同。此外，在清洗过程和漂洗过程中，可以是只有第二运转中的旋转翼5的转速根据负荷量来控制，也可以是只有第二运转中的旋转翼5的驱动时间根据负荷量来控制。
上述实施方式中，对具有绕与铅垂方向平行的旋转轴进行旋转的洗涤脱水桶3的立式洗衣机1进行了说明，但是本发明包括具有绕相对于铅垂方向倾斜例如0～10度的旋转轴进行旋转的洗涤脱水桶3的立式洗衣机1。
上述实施方式中，在第二运转中，通过旋转翼5的旋转驱动，洗涤物例如向30度旋转方向移动，但是洗涤物通过旋转翼5的旋转驱动而向旋转方向移动的量是任意的。
上述实施方式中，在第二运转中向洗涤脱水桶3不能旋转的方向旋转驱动旋转翼5，但是也可以在第二运转中向洗涤脱水桶3能旋转的方向旋转驱动旋转翼5。
上述实施方式中，在清洗过程和漂洗过程中于第一运转结束之后开始第二运转且交替进行一次第一运转和一次第二运转，但是并不局限于此。
例如，在清洗过程和漂洗过程中于第一运转结束之前开始第二运转的情况 下，反复进行第一运转、驱动抽水翼6和旋转翼5两者的运转、第二运转，但在这种情况下也交替进行第一运转和第二运转。
即，本发明中，在清洗过程和漂洗过程中交替进行所谓的第一运转和第二运转是指在进行第一运转之后进行第二运转，然后反复进行第一运转和第二运转，这种情况下，清洗过程和漂洗过程中可以包括第一运转之外的运转、第二运转之外的运转。
上述实施方式中，在清洗过程和漂洗过程中，第一运转的次数与第二运转的次数相同，但是第一运转的次数也可以与第二运转的次数不同。例如，在清洗过程或漂洗过程中，在进行第一规定次数的第一运转之后，进行不同于第一规定次数的第二规定次数的第二运转，然后，反复进行第一规定次数的第一运转和第二规定次数的第二运转，这种情况下，本发明中包括在清洗过程或漂洗过程中交替进行第一运转和第二运转的情况。
上述实施方式中，在清洗过程和漂洗过程中交替进行第一运转和第二运转，但是，也可以是，在清洗过程和漂洗过程的至少一方交替进行第一运转和第二运转。

Claims (6)

  1. 一种立式洗衣机，其特征在于，具备：
    外桶；
    洗涤脱水桶，以可旋转的方式设置于所述外桶内，收容洗涤物；
    抽水路，设置于所述洗涤脱水桶，用于从所述洗涤脱水桶的底部汲取所述洗涤脱水桶内的洗涤液并使该洗涤液返回至所述洗涤脱水桶内；
    排出部，将洗涤液从所述抽水路排出至所述洗涤脱水桶内；
    旋转翼，设置于所述洗涤脱水桶的底部，通过旋转来使洗涤物在所述洗涤脱水桶内移动；
    抽水翼，设置于所述洗涤脱水桶的底壁与所述旋转翼之间，通过旋转来将所述洗涤脱水桶内的洗涤液从所述洗涤脱水桶的底部送入所述抽水路；
    驱动单元，能分别独立地对所述洗涤脱水桶、所述旋转翼以及所述抽水翼进行旋转驱动；以及
    控制单元，控制所述驱动单元，
    在清洗过程和漂洗过程的至少一方交替进行只驱动所述抽水翼的第一运转和只驱动所述旋转翼的第二运转。
  2. 根据权利要求1所述的立式洗衣机，其特征在于，
    在清洗过程或漂洗过程中，所述第一运转的驱动时间比所述第二运转的驱动时间长。
  3. 根据权利要求1或2所述的立式洗衣机，其特征在于，
    所述洗涤脱水桶被配置为只能向规定方向旋转，
    所述控制单元在所述第二运转中向与所述规定方向相反的方向驱动所述旋转翼。
  4. 根据权利要求1～3的任意一项所述的立式洗衣机，其特征在于，
    具备检测与所述洗涤脱水桶内的洗涤物的量对应的负荷量的负荷量检测单 元，
    所述控制单元根据由所述负荷量检测单元检测出的负荷量来控制所述第二运转中的所述旋转翼的驱动时间和转速的至少一方。
  5. 根据权利要求1～4的任意一项所述的立式洗衣机，其特征在于，
    所述排出部包括分别沿纵向或倾斜方向延伸的多个排出口。
  6. 根据权利要求5所述的立式洗衣机，其特征在于，
    所述多个排出口在所述洗涤脱水桶中的形成有多个通水孔的洗涤脱水部的整个高度方向上排出洗涤液。
PCT/CN2020/098774 2019-07-04 2020-06-29 立式洗衣机 WO2021000823A1 (zh)

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