WO2021129311A1 - Vertical washing machine - Google Patents

Vertical washing machine Download PDF

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Publication number
WO2021129311A1
WO2021129311A1 PCT/CN2020/132425 CN2020132425W WO2021129311A1 WO 2021129311 A1 WO2021129311 A1 WO 2021129311A1 CN 2020132425 W CN2020132425 W CN 2020132425W WO 2021129311 A1 WO2021129311 A1 WO 2021129311A1
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WO
WIPO (PCT)
Prior art keywords
rotating
tub
laundry
rotating tub
motor
Prior art date
Application number
PCT/CN2020/132425
Other languages
French (fr)
Chinese (zh)
Inventor
川端睦美
田岛登
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 CN202080090486.6A priority Critical patent/CN114846191B/en
Publication of WO2021129311A1 publication Critical patent/WO2021129311A1/en

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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
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/65—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing phases, e.g. for smoothing or removing creases

Definitions

  • the invention relates to a vertical washing machine.
  • the vertical washing machine disclosed in Patent Document 1 below includes: a washing and dewatering tub; a pulsator provided at the bottom of the washing and dewatering tub; and a motor that rotates the washing and dewatering tub and the pulsator, respectively.
  • a washing and dewatering tub When the dehydration operation in the vertical washing machine is completed, the laundry is entangled with each other and closely adheres to the inner wall and bottom of the washing and dehydration tub. Therefore, the vertical washing machine performs a peeling course of peeling the laundry from the washing and dehydrating tub and an unwinding course of untangling the laundry.
  • the pulsator is rotated by repeatedly turning on and off the motor under different operating conditions for each process.
  • Patent Document 1 Japanese Patent Application Publication No. 2018-79061
  • the present invention has been completed in view of the above-mentioned circumstances, and its object is to provide a vertical washing machine capable of improving the flatness of laundry after a spin-drying operation.
  • the present invention is a vertical washing machine, including: a driving unit that generates driving force; a rotating tub having an upper end portion with an inlet and outlet for washing and a lower end portion provided with a bottom wall, the rotating tub receiving the drive unit
  • the rotating wing is arranged on the bottom wall in the rotating barrel and receives the driving force of the drive unit to rotate; and a control unit that controls the drive unit to make the rotating barrel and The rotary wing rotates and performs a dehydration operation and a flat operation, the dehydration operation is an operation for dehydrating the laundry in the rotary tub by rotating the rotary tub at a predetermined dehydration rotation speed, and the flat operation is After the dewatering operation, the operation of flattening the laundry in the rotating tub, the control unit performs peeling processing and unwinding processing in the flatting operation, and the peeling processing is performed by repeatedly performing the rotary wing Forward rotation and reverse rotation to peel off the laundry from the inner periphery of the rotating tub, the unwinding process is performed by making the
  • the present invention is characterized in that the unraveling rotation speed is 150 rpm or more and 350 rpm or less.
  • control unit executes final processing during the flattening operation, and the final processing is to repeat the forward rotation and reverse rotation of the rotor after the unwinding processing to make the Processing in which the laundry in the rotating tub approaches the rotation center side of the rotating tub.
  • the strong centrifugal force generated by the rotation of the rotating tub at the spin speed is used to dehydrate the laundry in the rotating tub during the spin-drying operation. Therefore, it can be assumed that at the end of the spin-drying operation At this point, the plurality of laundry in the rotating tub is in a state of being entangled with each other and attached to the inner circumference of the rotating tub. Therefore, in the vertical washing machine, a flat operation for flattening the laundry in the rotating tub is performed after the dehydrating operation. In the flat operation, the peeling process is first performed. In the peeling process, the laundry is peeled from the inner peripheral portion of the rotating tub by the rotating blade that repeats forward and reverse rotation.
  • An unraveling process is performed after the peeling process.
  • the rotating tub is rotated at an unraveling speed lower than the dehydrating speed, thereby generating centrifugal force weaker than during the dehydrating operation.
  • the plurality of laundry that are peeled off from the inner peripheral portion of the rotating tub but are in a state of being entangled with each other are separated by being pulled by the centrifugal force, so the entanglement between the plurality of laundry can be efficiently unwound. It is not easy to leave serious wrinkles on the laundry after the entanglement is unwound, so it is possible to improve the flatness of the laundry after the spin-drying operation.
  • the rotating tub in the unwinding process, is rotated at an unwinding speed of 150 rpm or more and 350 rpm or less, thereby preventing the laundry in the rotating tub from sticking to the inner periphery of the rotating tub and The centrifugal force of the strength suitable for unwrapping the laundry in the rotating tub.
  • the final processing is performed after the unwinding processing.
  • the rotating wing that repeats forward and reverse rotation is used to make the laundry in the rotating tub toward the center of rotation of the rotating tub. Side close. Therefore, the laundry in the rotating tub after the final treatment is disposed at a position that is easy to take out on the rotation center side of the rotating tub in a state where the winding is unwound. Therefore, the user can easily take out the laundry in the rotating tub.
  • Fig. 1 is a schematic vertical cross-sectional right view of a vertical washing machine according to an embodiment of the present invention.
  • Fig. 2 is a block diagram showing the electrical structure of the vertical washing machine.
  • Fig. 3 is a flowchart showing a flat operation performed by the vertical washing machine.
  • Fig. 4 is a plan view of the rotating tub of the vertical washing machine immediately after the completion of the spin-drying operation.
  • Fig. 5 is a plan view of the rotary tub immediately after the peeling process in the flattening operation is completed.
  • Fig. 6 is a plan view of the rotating bucket immediately after the unwinding process in the flattening operation is completed.
  • Fig. 7 is a plan view of the rotating tub immediately after the final processing in the flattening operation.
  • Fig. 1 is a schematic vertical cross-sectional right view of a vertical washing machine 1 according to an embodiment of the present invention.
  • the direction orthogonal to the paper surface of FIG. 1 is called the left-right direction X of the vertical washing machine 1
  • the left-right direction in FIG. 1 is called the front-rear direction Y of the vertical washing machine 1
  • the up-down direction in FIG. 1 is called the vertical direction.
  • the back side of the paper surface of FIG. 1 is referred to as the left side X1 of the vertical washing machine 1
  • the right side X2 of the vertical washing machine 1 is referred to as the right side X2 of the vertical washing machine 1.
  • the left side in FIG. 1 is referred to as the front side Y1
  • the right side in FIG. 1 is referred to as the rear side Y2.
  • the upper side is referred to as the upper side Z1
  • the lower side is referred to as the lower side Z2.
  • the vertical washing machine 1 includes: a box body 2; an outer tub 3 arranged in the box body 2; a rotating tub 4 housed in the outer tub 3; a rotating wing 5 arranged in the lower part of the rotating tub 4; an electric motor 6, It is an example of a drive unit that generates driving force for rotating the rotating tub 4 and the rotating wing 5; and an electric transmission mechanism 7 that transmits the driving force of the motor 6 to the rotating tub 4 and the rotating wing 5.
  • the box body 2 is made of metal, for example, and is formed in a box shape.
  • An opening 2B for communicating the inside and outside of the box 2 is formed in the upper surface portion 2A of the box 2.
  • a door 8 that opens and closes the opening 2B is provided on the upper surface portion 2A.
  • a display operation portion 9 composed of a switch, a liquid crystal panel, and the like is provided in an area of the upper surface portion 2A on the front side Y1 of the opening 2B.
  • the user can freely select the operating conditions of the vertical washing machine 1 or instruct the vertical washing machine 1 to start operation, stop the operation, etc. by operating a switch or the like of the display operation unit 9.
  • Information related to the operation of the vertical washing machine 1 is visually displayed on the liquid crystal panel or the like of the display operation unit 9.
  • the outer tub 3 is made of resin, for example, and is formed in a cylindrical shape with a bottom.
  • the outer tub 3 is connected to the box body 2 via a support member 10 such as a suspension rod and a shock absorber having a spring and a damping mechanism, and is elastically supported by the support member 10.
  • the outer barrel 3 has: a substantially cylindrical circumferential wall 3A, which is arranged in the vertical direction Z; a bottom wall 3B, which blocks the hollow portion of the circumferential wall 3A from the lower side Z2; The edge wrapping side of the upper side Z1 side of 3A protrudes toward the center side of the circumferential wall 3A.
  • an entrance 3D 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 3D is in a state of being opposed to and communicating with the opening 2B of the box 2 from the lower side Z2.
  • the annular wall 3C is provided with a door 11 that opens and closes the entrance 3D.
  • the bottom wall 3B is formed in a circular plate shape extending substantially horizontally, and a through hole 3E penetrating the bottom wall 3B is formed at a center position of the bottom wall 3B.
  • Water can be stored in the outer bucket 3.
  • the water supply path 12 connected to the tap of the tap water is connected to the outer tub 3 from the upper side Z1, and the tap water is supplied from the water supply path 12 into the outer tub 3.
  • a water supply valve 13 that opens and closes in order to start or stop water supply is provided in the middle of the water supply path 12.
  • the drain passage 14 is connected to the outer tub 3 from the lower side Z2, and the water in the outer tub 3 is drained from the drain passage 14 to the outside of the machine.
  • a drain valve 15 that opens and closes in order to start or stop draining is provided in the middle of the drain channel 14.
  • the rotating tub 4 is, for example, made of metal, and is formed into a cylindrical shape with a bottom that is slightly smaller than the outer tub 3, and can contain the laundry Q inside.
  • the rotating tub 4 has a substantially cylindrical circumferential wall 4A arranged in the vertical direction Z, and a bottom wall 4B that blocks the hollow portion of the circumferential wall 4A from the lower side Z2.
  • the inner circumferential surface 4C of the circumferential wall 4A constitutes the inner circumferential portion of the rotating tub 4.
  • the upper end portion of the inner peripheral surface 4C forms the upper end portion 4D of the entire rotating tub 4.
  • the upper end part 4D of the rotating tub 4 is formed with an entrance and exit 4E bounded by the upper end part of the inner peripheral surface 4C.
  • the entrance 4E exposes the hollow part of the circumferential wall 4A to the upper side Z1.
  • the port 4E is in a state of being opposed to and communicating with the port 3D of the outer tub 3 from the lower side Z2.
  • the doorway 3D and the doorway 4E are opened and closed together by the door 11.
  • the user of the vertical washing machine 1 allows the laundry Q to enter and exit the rotating tub 4 through the open opening 2B, the entrance 3D, and the entrance 4E.
  • the rotating tub 4 is coaxially accommodated in the outer tub 3.
  • the outer tub 3 and the rotating tub 4 constitute a washing tub 16.
  • the entire washing tub 16 is elastically supported by the supporting member 10.
  • the rotating tub 4 in the state accommodated in the outer tub 3 can rotate around an axis J that forms its central axis and extends in the vertical direction Z.
  • a plurality of through holes are formed in at least one of the circumferential wall 4A and the bottom wall 4B of the rotating tub 4, and the water in the outer tub 3 can pass between the outer tub 3 and the rotating tub 4 through the through holes. Intermittently. Therefore, the water level in the outer tub 3 is consistent with the water level in the rotating tub 4.
  • the bottom wall 4B of the rotating tub 4 is the lower end of the rotating tub 4, and is formed in a disk shape extending substantially parallel to the bottom wall 3B of the outer tub 3 with an interval on the upper side Z1.
  • a through hole 4F that penetrates the bottom wall 4B is formed at a center position of the bottom wall 4B that coincides with the axis J.
  • the bottom wall 4B is provided with a tubular support shaft 17 extending along the axis J to the lower side Z2 while surrounding the through hole 4F.
  • the support shaft 17 is inserted through the through hole 3E of the bottom wall 3B of the outer tub 3, and the lower end of the support shaft 17 is located on the lower side Z2 than the bottom wall 3B.
  • the rotating wing 5 is a so-called pulsator, formed in a disk shape centered on the axis J, and is arranged on the bottom wall 4B in the rotating drum 4 coaxially with the rotating drum 4.
  • a plurality of blades 5A arranged radially with the axis J as the center are provided on the upper surface portion of the rotary wing 5 facing the entrance and exit 4E of the rotary tub 4.
  • Each blade 5A is a protruding portion that protrudes toward the upper side Z1 while extending in the radial direction R with the axis J as a reference.
  • the rotating blade 5 is provided with a rotating shaft 18 extending from its center along the axis J to the lower side Z2.
  • the rotating shaft 18 is inserted through the hollow part of the support shaft 17, and the lower end of the rotating shaft 18 is located on the lower side Z2 than the bottom wall 3B of the outer tub 3.
  • the motor 6 is constituted by, for example, an inverter motor.
  • the motor 6 is arranged on the lower side Z2 of the tub 3 in the case 2.
  • the motor 6 has an output shaft 19 that rotates around the axis J.
  • the transmission mechanism 7 is interposed between the lower end of each of the support shaft 17 and the rotating shaft 18 and the upper end of the output shaft 19.
  • the transmission mechanism 7 selectively transmits the driving force output by the motor 6 from the output shaft 19 to one or both of the support shaft 17 and the rotation shaft 18.
  • the transmission mechanism 7 can use a well-known mechanism.
  • the motor 6 and the transmission mechanism 7 are fixed to the outer tub 3.
  • the motor 6 may be fixed to the housing 2 and the driving force of the motor 6 is transmitted from the transmission mechanism 7 to the support shaft 17 via a transmission member such as a conveyor belt.
  • Rotating shaft 18 When the driving force of the motor 6 is transmitted to the support shaft 17, the rotating tub 4 receives the driving force of the motor 6 and rotates around the support shaft 17.
  • the rotating wing 5 receives the driving force of the motor 6 and rotates around the rotating shaft 18.
  • the rotation direction of the motor 6, that is, the rotation direction of the output shaft 19 is consistent with the respective rotation directions of the rotating tub 4 and the rotating wing 5.
  • FIG. 2 is a block diagram showing the electrical structure of the vertical washing machine 1.
  • the vertical washing machine 1 includes a control unit 21 as an example of a control unit.
  • the control unit 21 is configured as, for example, a microcomputer including a CPU 22, a memory 23 such as a ROM or RAM, and a timer 24 for timekeeping, and is built in the housing 2 (also refer to FIG. 1).
  • the vertical washing machine 1 further includes a water level sensor 25 and a rotation speed sensor 26.
  • the motor 6, the transmission mechanism 7, the water supply valve 13, the drain valve 15, the display operation unit 9, the water level sensor 25 and the rotation speed sensor 26 are all electrically connected to the control unit 21.
  • the control unit 21 controls the rotation of the motor 6 to cause the motor 6 to generate driving force or to stop the rotation of the motor 6.
  • the control unit 21 controls the transmission mechanism 7 to switch the transmission destination of the driving force of the motor 6 to one or both of the support shaft 17 and the rotation shaft 18.
  • the control unit 21 controls the motor 6 and the transmission mechanism 7 to rotate the rotating tub 4 and the rotating wing 5.
  • the control unit 21 can rotate the motor 6 forward or reverse by controlling the direction of rotation of the motor 6.
  • the rotating tub 4 and the rotating wing 5 that have received the driving force of the forward-rotating motor 6 rotate forward, for example, in a clockwise direction in a plan view.
  • the rotating tub 4 and the rotating wing 5 that have received the driving force of the reversed motor 6 are reversed, for example, in a counterclockwise direction in a plan view.
  • the control unit 21 controls the opening and closing of the water supply valve 13 and the drain valve 15.
  • the control unit 21 opens the water supply valve 13 in a state where the drain valve 15 is closed, water is supplied to the washing tub 16 to store water.
  • the control part 21 opens the drain valve 15, the washing tub 16 drains water.
  • the control unit 21 accepts the selection.
  • the control unit 21 controls the display of the display operation unit 9.
  • the water level sensor 25 is a sensor that senses the water level of the washing tub 16, that is, the water level of the outer tub 3 and the rotating tub 4, and the detection result of the water level sensor 25 is input to the control unit 21 in real time.
  • the rotation speed sensor 26 is a device that detects the rotation speed of the motor 6, strictly speaking, the rotation speed of the output shaft 19 in the motor 6, and is composed of, for example, a Hall IC. The rotation speed read by the rotation speed sensor 26 is input to the control unit 21 in real time.
  • the control unit 21 controls, for example, the duty ratio of the voltage applied to the motor 6 based on the input rotation speed, thereby rotating the motor 6 at a desired rotation speed.
  • the rotation speed of the rotating tub 4 is the same as the rotation speed of the motor 6, and the rotation speed of the rotating blade 5 is a value obtained by multiplying a predetermined constant such as a reduction ratio in the transmission mechanism 7 by the rotation speed of the motor 6.
  • the rotation speed sensor 26 detects the rotation speed of the rotating tub 4 and the rotating blade 5 by detecting the rotation speed of the motor 6 as well.
  • the vertical washing machine 1 is not limited to an ordinary vertical washing machine that sequentially performs washing operation, rinsing operation, and spin-drying operation, but also includes a vertical washer-dryer that also performs a drying operation for drying laundry Q, but the drying operation is omitted below. Description of operation.
  • the control unit 21 supplies water to the washing tub 16 for a predetermined time, and the motor 6 rotates only the rotor blade 5.
  • the laundry Q in the rotating tub 4 is stirred by the blades 5A of the rotating rotor blade 5, or is cleaned by decomposing dirt by the detergent put into the rotating tub 4 before the start of the washing operation.
  • the control unit 21 supplies water to the washing tub 16 for a predetermined time, and the motor 6 rotates only the rotor blade 5.
  • the laundry Q in the rotating tub 4 is rinsed by the stream of tap water generated in the rotating tub 4 by the rotating rotor blade 5.
  • the rinsing operation can be performed multiple times.
  • the control unit 21 rotates the rotating tub 4 and the rotating blade 5 at a high speed.
  • the control unit 21 controls the motor 6 as follows: Stepwise turn on the motor 6 to increase the rotation speed of the motor 6, and finally increase the rotation speed of the motor 6 to, for example, 800 rpm or more and 1000 rpm or less, such a predetermined dehydration After the rotation speed, it is rotated at the spin speed. Thereby, the rotating tub 4 and the rotating blade 5 also rotate at the dehydration rotation speed. Due to the strong centrifugal force generated by this rotation, the laundry Q in the rotating tub 4 moves to the outside in the radial direction R and is pressed against the inner peripheral surface 4C of the rotating tub 4, thereby being dehydrated.
  • the drain valve 15 during the dehydration operation is in an open state, and the moisture seeping out from the laundry Q due to dehydration is discharged through the drain passage 14.
  • the control unit 21 turns off the motor 6 to stop the rotation of the motor 6.
  • the dehydration operation may include an intermediate dehydration operation performed between the washing operation and the rinsing operation, and a final dehydration operation performed after the last rinsing operation.
  • the plurality of laundry Q in the rotating tub 4 is in a state of being entangled with each other and attached to the inner peripheral surface 4C of the rotating tub 4 (refer to the figure described later). 4).
  • the laundry Q in this state is not easy to take out from the rotating tub 4, and it takes a lot of effort to untie the laundry Q entangled with each other.
  • the intertwined laundry Q is ignored, serious wrinkles will be left on the laundry Q and the flatness of the laundry Q will be impaired. Therefore, it is necessary to untie the intertwined laundry Q as soon as possible.
  • FIG. 3 is a flowchart showing the horizontal operation performed by the vertical washing machine 1. As shown in FIG. The flat operation includes a peeling process, an unraveling process after the peeling process, and a final process after the unraveling process, and the control unit 21 executes these processes in order during the flattening operation.
  • the control unit 21 controls the motor 6 and the transmission mechanism 7 to set the transmission target of the driving force of the motor 6 to only the rotor 5, and to reverse the rotation of the rotor 5 by repeatedly turning on and off the motor 6 ( Step S1).
  • the reverse rotation of the rotor 5 means that the rotor 5 repeatedly rotates forward and backward.
  • the rotation speed of the motor 6 when the rotor blade 5 rotates is, for example, 500 rpm to 700 rpm.
  • the reversing rotating blade 5 peels off the laundry Q attached to the inner peripheral surface 4C of the rotating tub 4 in a tangled state along the circumferential direction P around the axis J, thereby peeling the laundry Q from the inner peripheral surface 4C.
  • the control unit 21 stops the reverse rotation of the rotary blade 5 by stopping the motor 6 (step S2).
  • the peeling process ends.
  • the laundry Q peeled off from the inner peripheral surface 4C in the rotary tub 4 is in a state of being gathered on the rotation center side of the rotary tub 4, that is, on the axis J side (refer to FIG. 5).
  • the control unit 21 controls the motor 6 and the transmission mechanism 7, and sets the transmission target of the driving force of the motor 6 to the rotating tub 4 and the rotating wing 5, and sets the unraveling rotation speed lower than the dehydration rotation speed.
  • the rotating tub 4 rotates at a low speed (step S3). As a result, centrifugal force weaker than that during the dehydration operation is generated in the rotating tub 4.
  • a plurality of laundry Q (refer to FIG.
  • the control unit 21 stops the rotation of the rotating tub 4 by stopping the motor 6 (step S3). S4).
  • the unlocking process ends.
  • the unwrapped laundry Q is slightly moved to the outer side of the radial direction R, that is, the inner peripheral surface 4C side of the rotating tub 4, due to the centrifugal force generated during the unwrapping process (refer to Figure 6).
  • the control unit 21 controls the motor 6 and the transmission mechanism 7 to set the transmission destination of the driving force of the motor 6 to only the rotor 5 and reverse the rotor 5 (step S5).
  • the rotation speed of the motor 6 when the rotor blade 5 is rotating may be the same as the rotation speed of the motor 6 when the rotor blade 5 is rotating in the peeling process, or may be smaller than in the case of the peeling process.
  • the reversing rotor blade 5 brings the laundry Q moved to the outer side of the radial direction R due to the unraveling process closer to the rotation center side of the rotary tub 4.
  • the control unit 21 stops the reverse rotation of the rotary blade 5 by stopping the motor 6 (step S6).
  • an operation time of, for example, 3 minutes is set. Therefore, during the period from the start of the flat operation, that is, the start of the reverse rotation of the rotor 5 in step S1, until the elapse of the operation time (No in step S7) , The control unit 21 sequentially repeats the peeling process, the unwinding process, and the final process. If the timer 24 measures that the operation time has passed at the end of the final processing (YES in step S7), the control unit 21 ends the flat operation.
  • the laundry Q in the rotating tub 4 is arranged in a state where the entanglement is unwound at a position that is easy to take out on the side of the rotation center of the rotating tub 4 (refer to FIG. 7), so the user The laundry Q in the rotating tub 4 can be easily taken out.
  • the unraveling rotation speed in the unraveling process is specifically 150 rpm or more and 350 rpm or less.
  • the unwound rotation speed to 150 rpm or more and 350 rpm or less
  • the adhesion of the laundry Q to the inner peripheral surface 4C of the rotating tub 4 can be suppressed, and the processing time of the final treatment and the peeling treatment can be shortened, so that the laundry Q can be reduced. Damage.
  • the laundry Q may be kinked.
  • the reversal can suppress the kinking of the laundry Q.
  • the axis J which is the center of rotation of the rotating tub 4, extends vertically in this embodiment, but it may be arranged obliquely with respect to the vertical direction.
  • the final processing can be omitted.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

Disclosed is a vertical washing machine (1) capable of aiming at improving the spreadability of washed objects (Q) after a water removal operation. The vertical washing machine (1) comprises: a motor (6); a rotating drum (4) for receiving the driving force of the motor (6) to rotate; a rotating wing (5) arranged in the rotating drum (4) on a bottom wall (4B) of the rotating drum (4) for receiving the driving force of the electric motor (6) to rotate; and a control unit (21) for rotating the rotating drum (4) and the rotating wing (5) by controlling the motor (6). The control unit (21) performs a water removal operation for removing water from the washed objects (Q) in the rotating drum (4) by rotating the rotating drum (4) at a prescribed water removal speed and a flattening operation for flattening the washed objects (Q) in the rotating drum (4) after the water removal operation. The control unit (21) performs peeling treatment of peeling the washed objects (Q) from the inner peripheral surface of the rotating drum (4) by means of repeated forward and reverse rotation of the rotating wing (5) in the flattening operation and an unfastening treatment in which the rotating drum (4) rotates at the unfastening rotating speed lower than the water removal rotation speed so as to unfasten entwined washed objects (Q) in the rotating drum (4) after peeling treatment.

Description

立式洗衣机Vertical washing machine 技术领域Technical field
本发明涉及一种立式洗衣机。The invention relates to a vertical washing machine.
背景技术Background technique
下述专利文献1所公开的立式洗衣机包括：洗涤脱水桶；波轮，设于洗涤脱水桶的底部；以及马达，分别使洗涤脱水桶和波轮旋转。当在立式洗衣机中脱水运转结束时，所洗涤的衣物成为相互缠绕并紧贴于洗涤脱水桶的内壁面、底部的状态。因此，立式洗衣机执行将衣物从洗涤脱水桶剥离的剥离进程和将相互缠绕的衣物解开的解开进程。在剥离进程和解开进程中，均通过在按照每个进程各不相同的运转条件下反复进行马达的接通和断开来使波轮旋转。The vertical washing machine disclosed in Patent Document 1 below includes: a washing and dewatering tub; a pulsator provided at the bottom of the washing and dewatering tub; and a motor that rotates the washing and dewatering tub and the pulsator, respectively. When the dehydration operation in the vertical washing machine is completed, the laundry is entangled with each other and closely adheres to the inner wall and bottom of the washing and dehydration tub. Therefore, the vertical washing machine performs a peeling course of peeling the laundry from the washing and dehydrating tub and an unwinding course of untangling the laundry. In both the peeling process and the unwinding process, the pulsator is rotated by repeatedly turning on and off the motor under different operating conditions for each process.
即使像专利文献1的立式洗衣机那样试图仅通过波轮的旋转来将洗涤物从洗涤脱水桶剥离或将相互缠绕的衣物解开，也特别难以将洗涤物的缠绕充分地解开。此外，已知一种立式洗衣机在洗涤脱水桶蓄水的洗涤运转、漂洗运转中，在排水前的定时使波轮旋转来产生水流，利用该水流将洗涤物解开的方法，但即使是该方法，也难以将洗涤物的缠绕充分地解开。当洗涤物的缠绕未解开时，会在洗涤物上留下严重的褶皱，因此有损洗涤物的平展性。Even if it is attempted to peel the laundry from the washing and dehydrating tub or unwind the entangled laundry only by the rotation of the pulsator like the vertical washing machine of Patent Document 1, it is particularly difficult to fully unwind the laundry. In addition, there is known a vertical washing machine in which the pulsator is rotated at a timing before draining to generate a water flow during the washing operation and rinsing operation where the washing and dehydrating tub water is stored, and the water flow is used to untie the laundry. This method also makes it difficult to fully untie the entanglement of the laundry. When the entanglement of the laundry is not untied, serious wrinkles will be left on the laundry, thus impairing the flatness of the laundry.
现有技术文献Prior art literature
专利文献Patent literature
专利文献1：日本特开2018－79061号公报Patent Document 1: Japanese Patent Application Publication No. 2018-79061
发明内容Summary of the invention
发明所要解决的问题The problem to be solved by the invention
本发明是鉴于上述的情形而完成的，其目的在于提供一种能谋求提高脱水运转后的洗涤物的平展性的立式洗衣机。The present invention has been completed in view of the above-mentioned circumstances, and its object is to provide a vertical washing machine capable of improving the flatness of laundry after a spin-drying operation.
用于解决问题的方案Solutions used to solve the problem
本发明是一种立式洗衣机，包括：驱动单元，产生驱动力；旋转桶，具有形成有洗涤物的出入口的上端部和设有底壁的下端部，所述旋转桶接受所述驱动单元的驱动力而旋转；旋转翼，在所述旋转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；以及控制单元，通过控制所述驱动单元来使所述旋转桶和所述旋转翼旋转，并执行脱水运转和平展运转，所述脱水运转是通过使所述旋转桶以规定的脱水转速旋转来将所述旋转桶内的洗涤物脱水的运转，所述平展运转是在所述脱水运转后将所述旋转桶内的洗涤物平展的运转，所述控制单元在所述平展运转中执行剥离处理和解开处理，所述剥离处理是通过反复进行所述旋转翼的正转和反转来从所述旋转桶的内周部剥离洗涤物的处理，所述解开处理是在所述剥离处理后通过使所述旋转桶以比所述脱水转速低的解开转速旋转来将所述旋转桶内的洗涤物的缠绕解开的处理。The present invention is a vertical washing machine, including: a driving unit that generates driving force; a rotating tub having an upper end portion with an inlet and outlet for washing and a lower end portion provided with a bottom wall, the rotating tub receiving the drive unit The rotating wing is arranged on the bottom wall in the rotating barrel and receives the driving force of the drive unit to rotate; and a control unit that controls the drive unit to make the rotating barrel and The rotary wing rotates and performs a dehydration operation and a flat operation, the dehydration operation is an operation for dehydrating the laundry in the rotary tub by rotating the rotary tub at a predetermined dehydration rotation speed, and the flat operation is After the dewatering operation, the operation of flattening the laundry in the rotating tub, the control unit performs peeling processing and unwinding processing in the flatting operation, and the peeling processing is performed by repeatedly performing the rotary wing Forward rotation and reverse rotation to peel off the laundry from the inner periphery of the rotating tub, the unwinding process is performed by making the rotating tub at a lower rotation speed than the spin-drying speed after the peeling process Rotating to unwind the entanglement of the laundry in the rotating tub.
此外，本发明的特征在于，所述解开转速为150rpm以上且350rpm以下。In addition, the present invention is characterized in that the unraveling rotation speed is 150 rpm or more and 350 rpm or less.
此外，本发明的特征在于，所述控制单元在所述平展运转中执行最终处理，所述最终处理是在所述解开处理后通过反复进行所述旋转翼的正转和反转来使所述旋转桶内的洗涤物向所述旋转桶的旋转中心侧靠近的处理。In addition, the present invention is characterized in that the control unit executes final processing during the flattening operation, and the final processing is to repeat the forward rotation and reverse rotation of the rotor after the unwinding processing to make the Processing in which the laundry in the rotating tub approaches the rotation center side of the rotating tub.
发明效果Invention effect
根据本发明，在立式洗衣机中，在脱水运转中利用通过脱水转速下的旋转桶的旋转而产生的强离心力来将旋转桶内的洗涤物脱水，因此，可以假定，在脱水运转的结束时间点，旋转桶内的多个洗涤物处于相互缠绕并贴附于旋转桶的内周部的状态。因此，在立式洗衣机中，在脱水运转后执行将旋转桶内的洗涤物平展的平展运转。在平展运转中，首先执行剥离处理，在剥离处理中，利用反复进行正转和反转的旋转翼从旋转桶的内周部剥离洗涤物。在剥离处理后执行解开处理，在解开处理中，以比脱水转速低的解开转速使旋转桶旋转，由此产生比脱水运转时弱的离心力。从旋转桶的内周部被剥离掉但处于相互缠绕的状态的多个洗涤物因在该离心力下被拉扯而分离，因此能高效地将多个洗涤物之间的缠绕解开。在缠绕被解开后的洗涤物上不易留下严重的褶皱，因此能谋求提高脱水运转后的洗涤物的平展性。According to the present invention, in the vertical washing machine, the strong centrifugal force generated by the rotation of the rotating tub at the spin speed is used to dehydrate the laundry in the rotating tub during the spin-drying operation. Therefore, it can be assumed that at the end of the spin-drying operation At this point, the plurality of laundry in the rotating tub is in a state of being entangled with each other and attached to the inner circumference of the rotating tub. Therefore, in the vertical washing machine, a flat operation for flattening the laundry in the rotating tub is performed after the dehydrating operation. In the flat operation, the peeling process is first performed. In the peeling process, the laundry is peeled from the inner peripheral portion of the rotating tub by the rotating blade that repeats forward and reverse rotation. An unraveling process is performed after the peeling process. In the unraveling process, the rotating tub is rotated at an unraveling speed lower than the dehydrating speed, thereby generating centrifugal force weaker than during the dehydrating operation. The plurality of laundry that are peeled off from the inner peripheral portion of the rotating tub but are in a state of being entangled with each other are separated by being pulled by the centrifugal force, so the entanglement between the plurality of laundry can be efficiently unwound. It is not easy to leave serious wrinkles on the laundry after the entanglement is unwound, so it is possible to improve the flatness of the laundry after the spin-drying operation.
此外，根据本发明，在解开处理中，以150rpm以上且350rpm以下的解开转速使旋转桶旋转，由此能产生不会使旋转桶内的洗涤物贴附于旋转桶的内周部并适合于将旋转桶内的洗涤物解开的强度的离心力。In addition, according to the present invention, in the unwinding process, the rotating tub is rotated at an unwinding speed of 150 rpm or more and 350 rpm or less, thereby preventing the laundry in the rotating tub from sticking to the inner periphery of the rotating tub and The centrifugal force of the strength suitable for unwrapping the laundry in the rotating tub.
此外，根据本发明，在平展运转中，在解开处理后执行最终处理，在最终处理中，利用反复进行正转和反转的旋转翼来使旋转桶内的洗涤物向旋转桶的旋转中心侧靠近。因此，最终处理后的旋转桶内的洗涤物以缠绕被解开后的状态配置于旋转桶的旋转中心侧的易于取出的位置，因此用户能容易地取出旋转桶内的洗涤物。In addition, according to the present invention, in the flat operation, the final processing is performed after the unwinding processing. In the final processing, the rotating wing that repeats forward and reverse rotation is used to make the laundry in the rotating tub toward the center of rotation of the rotating tub. Side close. Therefore, the laundry in the rotating tub after the final treatment is disposed at a position that is easy to take out on the rotation center side of the rotating tub in a state where the winding is unwound. Therefore, the user can easily take out the laundry in the rotating tub.
附图说明Description of the drawings
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。Fig. 1 is a schematic vertical cross-sectional right view of a vertical washing machine according to an embodiment of the present invention.
图2是表示立式洗衣机的电结构的框图。Fig. 2 is a block diagram showing the electrical structure of the vertical washing machine.
图3是表示立式洗衣机所执行的平展运转的流程图。Fig. 3 is a flowchart showing a flat operation performed by the vertical washing machine.
图4是脱水运转刚结束后的立式洗衣机的旋转桶的俯视图。Fig. 4 is a plan view of the rotating tub of the vertical washing machine immediately after the completion of the spin-drying operation.
图5是平展运转中的剥离处理刚结束后的旋转桶的俯视图。Fig. 5 is a plan view of the rotary tub immediately after the peeling process in the flattening operation is completed.
图6是平展运转中的解开处理刚结束后的旋转桶的俯视图。Fig. 6 is a plan view of the rotating bucket immediately after the unwinding process in the flattening operation is completed.
图7是平展运转中的最终处理刚结束后的旋转桶的俯视图。Fig. 7 is a plan view of the rotating tub immediately after the final processing in the flattening operation.
附图标记说明Description of Reference Signs
1：立式洗衣机；4：旋转桶；4B：底壁；4C：内周面；4D：上端部；4E：出入口；5：旋转翼；6：马达；21：控制部；Q：洗涤物。1: Vertical washing machine; 4: rotating tub; 4B: bottom wall; 4C: inner peripheral surface; 4D: upper end; 4E: entrance and exit; 5: rotating wing; 6: motor; 21: control part; Q: washing.
具体实施方式Detailed ways
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的与纸面正交的方向称为立式洗衣机1的左右方向X，将图1中的左右方向称为立式洗衣机1的前后方向Y，将图1中的上下方向称为立式洗衣机1的上下方向Z。左右方向X当中， 将图1的纸面的里侧称为立式洗衣机1的左侧X1，将图1的纸面的表侧称为立式洗衣机1的右侧X2。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。上下方向Z当中，将上侧称为上侧Z1，将下侧称为下侧Z2。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Fig. 1 is a schematic vertical cross-sectional right view of a vertical washing machine 1 according to an embodiment of the present invention. The direction orthogonal to the paper surface of FIG. 1 is called the left-right direction X of the vertical washing machine 1, the left-right direction in FIG. 1 is called the front-rear direction Y of the vertical washing machine 1, and the up-down direction in FIG. 1 is called the vertical direction. Up and down direction Z of type washing machine 1. In the left-right direction X, the back side of the paper surface of FIG. 1 is referred to as the left side X1 of the vertical washing machine 1, and the front side of the paper surface of FIG. 1 is referred to as the right side X2 of the vertical washing machine 1. Among the front-rear direction Y, the left side in FIG. 1 is referred to as the front side Y1, and the right side in FIG. 1 is referred to as the rear side Y2. In the vertical direction Z, the upper side is referred to as the upper side Z1, and the lower side is referred to as the lower side Z2.
立式洗衣机1包括：箱体2；外桶3，配置于箱体2内；旋转桶4，容纳于外桶3内；旋转翼5，配置于旋转桶4内的下部；电动的马达6，是产生使旋转桶4、旋转翼5旋转的驱动力的驱动单元的一例；以及电动的传递机构7，将马达6的驱动力传递至旋转桶4、旋转翼5。The vertical washing machine 1 includes: a box body 2; an outer tub 3 arranged in the box body 2; a rotating tub 4 housed in the outer tub 3; a rotating wing 5 arranged in the lower part of the rotating tub 4; an electric motor 6, It is an example of a drive unit that generates driving force for rotating the rotating tub 4 and the rotating wing 5; and an electric transmission mechanism 7 that transmits the driving force of the motor 6 to the rotating tub 4 and the rotating wing 5.
箱体2例如是金属制，形成为箱状。在箱体2的上表面部2A形成有使箱体2的内外连通的开口2B。在上表面部2A设有将开口2B开闭的门8。在上表面部2A的例如比开口2B靠前侧Y1的区域，设有由开关、液晶面板等构成的显示操作部9。用户能通过操作显示操作部9的开关等来自由地选择立式洗衣机1的运转条件或者对立式洗衣机1指示运转开始、运转停止等。在显示操作部9的液晶面板等，以可目视的方式显示有与立式洗衣机1的运转相关的信息。The box body 2 is made of metal, for example, and is formed in a box shape. An opening 2B for communicating the inside and outside of the box 2 is formed in the upper surface portion 2A of the box 2. A door 8 that opens and closes the opening 2B is provided on the upper surface portion 2A. In an area of the upper surface portion 2A on the front side Y1 of the opening 2B, for example, a display operation portion 9 composed of a switch, a liquid crystal panel, and the like is provided. The user can freely select the operating conditions of the vertical washing machine 1 or instruct the vertical washing machine 1 to start operation, stop the operation, etc. by operating a switch or the like of the display operation unit 9. Information related to the operation of the vertical washing machine 1 is visually displayed on the liquid crystal panel or the like of the display operation unit 9.
外桶3例如是树脂制，形成为有底圆筒状。外桶3经由具有弹簧和阻尼机构的吊棒、减震器等支承构件10连结于箱体2，被支承构件10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，一边将圆周壁3A的上侧Z1侧的端缘包边一边向圆周壁3A的圆心侧伸出。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3D。出入口3D处于从下侧Z2与箱体2的开口2B对置并连通的状态。在环状壁3C设有将出入口3D开闭的门11。底壁3B形成为大致水平地延伸的圆板状，在底壁3B的圆心位置形成有贯通底壁3B的贯通孔3E。The outer tub 3 is made of resin, for example, and is formed in a cylindrical shape with a bottom. The outer tub 3 is connected to the box body 2 via a support member 10 such as a suspension rod and a shock absorber having a spring and a damping mechanism, and is elastically supported by the support member 10. The outer barrel 3 has: a substantially cylindrical circumferential wall 3A, which is arranged in the vertical direction Z; a bottom wall 3B, which blocks the hollow portion of the circumferential wall 3A from the lower side Z2; The edge wrapping side of the upper side Z1 side of 3A protrudes toward the center side of the circumferential wall 3A. On the inner side of the annular wall 3C, an entrance 3D communicating with the hollow portion of the circumferential wall 3A from the upper side Z1 is formed. The entrance 3D is in a state of being opposed to and communicating with the opening 2B of the box 2 from the lower side Z2. The annular wall 3C is provided with a door 11 that opens and closes the entrance 3D. The bottom wall 3B is formed in a circular plate shape extending substantially horizontally, and a through hole 3E penetrating the bottom wall 3B is formed at a center position of the bottom wall 3B.
外桶3内可蓄水。与自来水的水龙头相连的供水路12从上侧Z1连接于外桶3，自来水从供水路12供给至外桶3内。在供水路12的中途设有为了开始或停止供水而开闭的供水阀13。排水路14从下侧Z2连接于外桶3，外桶3内的水从排水路14排出至机外。在排水路14的中途设有为了开始或停止排水而开闭的排水阀15。Water can be stored in the outer bucket 3. The water supply path 12 connected to the tap of the tap water is connected to the outer tub 3 from the upper side Z1, and the tap water is supplied from the water supply path 12 into the outer tub 3. A water supply valve 13 that opens and closes in order to start or stop water supply is provided in the middle of the water supply path 12. The drain passage 14 is connected to the outer tub 3 from the lower side Z2, and the water in the outer tub 3 is drained from the drain passage 14 to the outside of the machine. A drain valve 15 that opens and closes in order to start or stop draining is provided in the middle of the drain channel 14.
旋转桶4例如是金属制，形成为比外桶3小一圈的有底圆筒状，能在内部 容纳洗涤物Q。旋转桶4具有沿上下方向Z配置的大致圆筒状的圆周壁4A和从下侧Z2堵住圆周壁4A的中空部分的底壁4B。The rotating tub 4 is, for example, made of metal, and is formed into a cylindrical shape with a bottom that is slightly smaller than the outer tub 3, and can contain the laundry Q inside. The rotating tub 4 has a substantially cylindrical circumferential wall 4A arranged in the vertical direction Z, and a bottom wall 4B that blocks the hollow portion of the circumferential wall 4A from the lower side Z2.
圆周壁4A的内周面4C构成旋转桶4的内周部。内周面4C的上端部形成整个旋转桶4的上端部4D。在旋转桶4的上端部4D形成有被内周面4C的上端部包边的出入口4E。出入口4E使圆周壁4A的中空部分向上侧Z1露出。出入口4E处于从下侧Z2与外桶3的出入口3D对置并连通的状态。出入口3D和出入口4E由门11一并地开闭。立式洗衣机1的用户经由敞开的开口2B、出入口3D以及出入口4E使洗涤物Q出入于旋转桶4。The inner circumferential surface 4C of the circumferential wall 4A constitutes the inner circumferential portion of the rotating tub 4. The upper end portion of the inner peripheral surface 4C forms the upper end portion 4D of the entire rotating tub 4. The upper end part 4D of the rotating tub 4 is formed with an entrance and exit 4E bounded by the upper end part of the inner peripheral surface 4C. The entrance 4E exposes the hollow part of the circumferential wall 4A to the upper side Z1. The port 4E is in a state of being opposed to and communicating with the port 3D of the outer tub 3 from the lower side Z2. The doorway 3D and the doorway 4E are opened and closed together by the door 11. The user of the vertical washing machine 1 allows the laundry Q to enter and exit the rotating tub 4 through the open opening 2B, the entrance 3D, and the entrance 4E.
旋转桶4同轴地容纳于外桶3内。外桶3和旋转桶4构成洗涤桶16。整个洗涤桶16被支承构件10弹性支承。容纳于外桶3内的状态的旋转桶4能以形成其中心轴并在上下方向Z上延伸的轴线J为中心旋转。此外，在旋转桶4的圆周壁4A和底壁4B中的至少任一者形成有多个未图示的贯通孔，外桶3内的水能经由该贯通孔在外桶3与旋转桶4之间往来。因此，外桶3内的水位与旋转桶4内的水位一致。The rotating tub 4 is coaxially accommodated in the outer tub 3. The outer tub 3 and the rotating tub 4 constitute a washing tub 16. The entire washing tub 16 is elastically supported by the supporting member 10. The rotating tub 4 in the state accommodated in the outer tub 3 can rotate around an axis J that forms its central axis and extends in the vertical direction Z. In addition, a plurality of through holes (not shown) are formed in at least one of the circumferential wall 4A and the bottom wall 4B of the rotating tub 4, and the water in the outer tub 3 can pass between the outer tub 3 and the rotating tub 4 through the through holes. Intermittently. Therefore, the water level in the outer tub 3 is consistent with the water level in the rotating tub 4.
旋转桶4的底壁4B是旋转桶4的下端部，形成为以在上侧Z1隔开间隔的方式与外桶3的底壁3B大致平行地延伸的圆板状。在底壁4B的与轴线J一致的圆心位置形成有贯通底壁4B的贯通孔4F。在底壁4B设有一边包围贯通孔4F一边沿轴线J向下侧Z2延伸出的管状的支承轴17。支承轴17插通外桶3的底壁3B的贯通孔3E，支承轴17的下端部位于比底壁3B靠下侧Z2。The bottom wall 4B of the rotating tub 4 is the lower end of the rotating tub 4, and is formed in a disk shape extending substantially parallel to the bottom wall 3B of the outer tub 3 with an interval on the upper side Z1. A through hole 4F that penetrates the bottom wall 4B is formed at a center position of the bottom wall 4B that coincides with the axis J. The bottom wall 4B is provided with a tubular support shaft 17 extending along the axis J to the lower side Z2 while surrounding the through hole 4F. The support shaft 17 is inserted through the through hole 3E of the bottom wall 3B of the outer tub 3, and the lower end of the support shaft 17 is located on the lower side Z2 than the bottom wall 3B.
旋转翼5是所谓的波轮，形成为以轴线J为圆心的圆盘状，与旋转桶4同轴地配置于旋转桶4内的底壁4B上。在旋转翼5的面向旋转桶4的出入口4E的上表面部，设有以轴线J为中心呈放射状配置的多个叶片5A。各个叶片5A是一边在以轴线J为基准的径向R上延伸一边向上侧Z1***的***部。在旋转翼5设有从其圆心沿轴线J向下侧Z2延伸的旋转轴18。旋转轴18插通支承轴17的中空部分，旋转轴18的下端部位于比外桶3的底壁3B靠下侧Z2。The rotating wing 5 is a so-called pulsator, formed in a disk shape centered on the axis J, and is arranged on the bottom wall 4B in the rotating drum 4 coaxially with the rotating drum 4. A plurality of blades 5A arranged radially with the axis J as the center are provided on the upper surface portion of the rotary wing 5 facing the entrance and exit 4E of the rotary tub 4. Each blade 5A is a protruding portion that protrudes toward the upper side Z1 while extending in the radial direction R with the axis J as a reference. The rotating blade 5 is provided with a rotating shaft 18 extending from its center along the axis J to the lower side Z2. The rotating shaft 18 is inserted through the hollow part of the support shaft 17, and the lower end of the rotating shaft 18 is located on the lower side Z2 than the bottom wall 3B of the outer tub 3.
马达6例如由变频马达构成。马达6在箱体2内配置于外桶3的下侧Z2。马达6具有以轴线J为中心旋转的输出轴19。传递机构7夹置于支承轴17和旋转轴18各自的下端部与输出轴19的上端部之间。The motor 6 is constituted by, for example, an inverter motor. The motor 6 is arranged on the lower side Z2 of the tub 3 in the case 2. The motor 6 has an output shaft 19 that rotates around the axis J. The transmission mechanism 7 is interposed between the lower end of each of the support shaft 17 and the rotating shaft 18 and the upper end of the output shaft 19.
传递机构7将马达6从输出轴19输出的驱动力选择性地传递至支承轴17和旋转轴18中的一方或双方。传递机构7可以使用公知的机构。在本实施方式中，马达6和传递机构7固定于外桶3，但也可以是，马达6固定于箱体2，马达6的驱动力经由传送带等传递构件从传递机构7传递至支承轴17、旋转轴18。当马达6的驱动力传递至支承轴17时，旋转桶4接受马达6的驱动力而绕支承轴17旋转。当马达6的驱动力传递至旋转轴18时，旋转翼5接受马达6的驱动力而绕旋转轴18旋转。在本实施方式中，马达6的旋转方向也就是输出轴19的旋转方向与旋转桶4和旋转翼5各自的旋转方向一致。The transmission mechanism 7 selectively transmits the driving force output by the motor 6 from the output shaft 19 to one or both of the support shaft 17 and the rotation shaft 18. The transmission mechanism 7 can use a well-known mechanism. In this embodiment, the motor 6 and the transmission mechanism 7 are fixed to the outer tub 3. However, the motor 6 may be fixed to the housing 2 and the driving force of the motor 6 is transmitted from the transmission mechanism 7 to the support shaft 17 via a transmission member such as a conveyor belt. , Rotating shaft 18. When the driving force of the motor 6 is transmitted to the support shaft 17, the rotating tub 4 receives the driving force of the motor 6 and rotates around the support shaft 17. When the driving force of the motor 6 is transmitted to the rotating shaft 18, the rotating wing 5 receives the driving force of the motor 6 and rotates around the rotating shaft 18. In this embodiment, the rotation direction of the motor 6, that is, the rotation direction of the output shaft 19 is consistent with the respective rotation directions of the rotating tub 4 and the rotating wing 5.
图2是表示立式洗衣机1的电结构的框图。立式洗衣机1包括作为控制单元的一例的控制部21。控制部21例如被配置为包括CPU22、ROM或RAM等存储器23以及计时用的计时器24的微型计算机，内置于箱体2内(也参照图1)。FIG. 2 is a block diagram showing the electrical structure of the vertical washing machine 1. As shown in FIG. The vertical washing machine 1 includes a control unit 21 as an example of a control unit. The control unit 21 is configured as, for example, a microcomputer including a CPU 22, a memory 23 such as a ROM or RAM, and a timer 24 for timekeeping, and is built in the housing 2 (also refer to FIG. 1).
立式洗衣机1还包括水位传感器25和转速传感器26。马达6、传递机构7、供水阀13、排水阀15、显示操作部9、水位传感器25以及转速传感器26均电连接于控制部21。The vertical washing machine 1 further includes a water level sensor 25 and a rotation speed sensor 26. The motor 6, the transmission mechanism 7, the water supply valve 13, the drain valve 15, the display operation unit 9, the water level sensor 25 and the rotation speed sensor 26 are all electrically connected to the control unit 21.
控制部21控制马达6的旋转来使马达6产生驱动力或使马达6的旋转停止。控制部21通过控制传递机构7来将马达6的驱动力的传递目标切换为支承轴17和旋转轴18中的一方或双方。当马达6的驱动力传递至支承轴17时，旋转桶4旋转。当马达6的驱动力传递至旋转轴18时，旋转翼5旋转。如此，控制部21通过控制马达6和传递机构7来使旋转桶4和旋转翼5旋转。而且，控制部21能通过控制马达6的旋转方向来使马达6正转或反转。接受了正转的马达6的驱动力的旋转桶4和旋转翼5例如向俯视观察时为顺时针的方向正转。接受了反转的马达6的驱动力的旋转桶4和旋转翼5例如向俯视观察时为逆时针的方向反转。The control unit 21 controls the rotation of the motor 6 to cause the motor 6 to generate driving force or to stop the rotation of the motor 6. The control unit 21 controls the transmission mechanism 7 to switch the transmission destination of the driving force of the motor 6 to one or both of the support shaft 17 and the rotation shaft 18. When the driving force of the motor 6 is transmitted to the support shaft 17, the rotating tub 4 rotates. When the driving force of the motor 6 is transmitted to the rotating shaft 18, the rotating wing 5 rotates. In this way, the control unit 21 controls the motor 6 and the transmission mechanism 7 to rotate the rotating tub 4 and the rotating wing 5. Furthermore, the control unit 21 can rotate the motor 6 forward or reverse by controlling the direction of rotation of the motor 6. The rotating tub 4 and the rotating wing 5 that have received the driving force of the forward-rotating motor 6 rotate forward, for example, in a clockwise direction in a plan view. The rotating tub 4 and the rotating wing 5 that have received the driving force of the reversed motor 6 are reversed, for example, in a counterclockwise direction in a plan view.
控制部21控制供水阀13和排水阀15的开闭。当控制部21在关闭了排水阀15的状态下打开供水阀13时，向洗涤桶16供水来蓄水。当控制部21打开排水阀15时，洗涤桶16排水。当用户操作显示操作部9来选择洗涤物Q的脱水条件等时，控制部21受理该选择。控制部21控制显示操作部9的显示。The control unit 21 controls the opening and closing of the water supply valve 13 and the drain valve 15. When the control unit 21 opens the water supply valve 13 in a state where the drain valve 15 is closed, water is supplied to the washing tub 16 to store water. When the control part 21 opens the drain valve 15, the washing tub 16 drains water. When the user operates the display operation unit 9 to select the dehydration condition of the laundry Q or the like, the control unit 21 accepts the selection. The control unit 21 controls the display of the display operation unit 9.
水位传感器25是感测洗涤桶16的水位也就是外桶3和旋转桶4的水位的传感器，水位传感器25的检测结果被实时输入控制部21。转速传感器26是检 测马达6的转速、严格来说是马达6中的输出轴19的转速的装置，例如由霍尔IC构成。转速传感器26所读取的转速被实时输入控制部21。控制部21基于所输入的转速，例如控制施加于马达6的电压的占空比，由此使马达6以所希望的转速旋转。在本实施方式中，旋转桶4的转速与马达6的转速相同，旋转翼5的转速是传递机构7中的减速比等规定的常数乘以马达6的转速所得的值。总而言之，转速传感器26通过检测出马达6的转速也检测出旋转桶4和旋转翼5各自的转速。The water level sensor 25 is a sensor that senses the water level of the washing tub 16, that is, the water level of the outer tub 3 and the rotating tub 4, and the detection result of the water level sensor 25 is input to the control unit 21 in real time. The rotation speed sensor 26 is a device that detects the rotation speed of the motor 6, strictly speaking, the rotation speed of the output shaft 19 in the motor 6, and is composed of, for example, a Hall IC. The rotation speed read by the rotation speed sensor 26 is input to the control unit 21 in real time. The control unit 21 controls, for example, the duty ratio of the voltage applied to the motor 6 based on the input rotation speed, thereby rotating the motor 6 at a desired rotation speed. In the present embodiment, the rotation speed of the rotating tub 4 is the same as the rotation speed of the motor 6, and the rotation speed of the rotating blade 5 is a value obtained by multiplying a predetermined constant such as a reduction ratio in the transmission mechanism 7 by the rotation speed of the motor 6. In summary, the rotation speed sensor 26 detects the rotation speed of the rotating tub 4 and the rotating blade 5 by detecting the rotation speed of the motor 6 as well.
接着，对在立式洗衣机1中由控制部21执行的清洗运转、漂洗运转以及脱水运转进行说明。立式洗衣机1不限于依次执行清洗运转、漂洗运转以及脱水运转的普通的立式洗衣机，也包括还执行烘干洗涤物Q的烘干运转的立式洗干一体机，但以下省略对烘干运转的说明。Next, the washing operation, rinsing operation, and spin-drying operation performed by the control unit 21 in the vertical washing machine 1 will be described. The vertical washing machine 1 is not limited to an ordinary vertical washing machine that sequentially performs washing operation, rinsing operation, and spin-drying operation, but also includes a vertical washer-dryer that also performs a drying operation for drying laundry Q, but the drying operation is omitted below. Description of operation.
在清洗运转中，控制部21向洗涤桶16供水规定时间，利用马达6仅使旋转翼5旋转。由此，旋转桶4内的洗涤物Q通过旋转的旋转翼5的叶片5A而被搅拌，或者通过在清洗运转开始前投入至旋转桶4内的洗涤剂而被分解污垢，由此被清洗。在清洗运转后的漂洗运转中，控制部21向洗涤桶16供水规定时间，利用马达6仅使旋转翼5旋转。由此，旋转桶4内的洗涤物Q通过由旋转的旋转翼5在旋转桶4内产生的自来水的水流而被漂洗。漂洗运转可以执行多次。During the washing operation, the control unit 21 supplies water to the washing tub 16 for a predetermined time, and the motor 6 rotates only the rotor blade 5. As a result, the laundry Q in the rotating tub 4 is stirred by the blades 5A of the rotating rotor blade 5, or is cleaned by decomposing dirt by the detergent put into the rotating tub 4 before the start of the washing operation. In the rinsing operation after the washing operation, the control unit 21 supplies water to the washing tub 16 for a predetermined time, and the motor 6 rotates only the rotor blade 5. Thereby, the laundry Q in the rotating tub 4 is rinsed by the stream of tap water generated in the rotating tub 4 by the rotating rotor blade 5. The rinsing operation can be performed multiple times.
在脱水运转中，控制部21使旋转桶4和旋转翼5高速旋转。具体而言，控制部21以如下方式控制马达6：阶段性地使马达6接通来使马达6的转速上升，在最终使马达6的转速上升至例如800rpm以上且1000rpm以下这样的规定的脱水转速之后使其以脱水转速旋转。由此，旋转桶4和旋转翼5也以脱水转速旋转。通过由该旋转产生的强离心力，旋转桶4内的洗涤物Q向径向R的外侧移动而被按压在旋转桶4的内周面4C上，由此被脱水。脱水运转中的排水阀15处于打开的状态，因脱水而从洗涤物Q渗出的水分经过排水路14被排出。当脱水转速下的旋转桶4的稳定旋转持续规定时间时，控制部21使马达6断开来使马达6的旋转停止。由此，脱水运转结束。脱水运转中可以包括在清洗运转与漂洗运转之间执行的中间脱水运转、在最后的漂洗运转之后执行的最终脱水运转。During the dehydration operation, the control unit 21 rotates the rotating tub 4 and the rotating blade 5 at a high speed. Specifically, the control unit 21 controls the motor 6 as follows: Stepwise turn on the motor 6 to increase the rotation speed of the motor 6, and finally increase the rotation speed of the motor 6 to, for example, 800 rpm or more and 1000 rpm or less, such a predetermined dehydration After the rotation speed, it is rotated at the spin speed. Thereby, the rotating tub 4 and the rotating blade 5 also rotate at the dehydration rotation speed. Due to the strong centrifugal force generated by this rotation, the laundry Q in the rotating tub 4 moves to the outside in the radial direction R and is pressed against the inner peripheral surface 4C of the rotating tub 4, thereby being dehydrated. The drain valve 15 during the dehydration operation is in an open state, and the moisture seeping out from the laundry Q due to dehydration is discharged through the drain passage 14. When the stable rotation of the rotating tub 4 at the dehydration rotation speed continues for a predetermined time, the control unit 21 turns off the motor 6 to stop the rotation of the motor 6. Thus, the dehydration operation ends. The dehydration operation may include an intermediate dehydration operation performed between the washing operation and the rinsing operation, and a final dehydration operation performed after the last rinsing operation.
假定在脱水运转、详细而言是最终脱水运转的结束时间点，旋转桶4内的多个洗涤物Q处于相互缠绕并贴附于旋转桶4的内周面4C的状态(参照后述的图4)。该状态的洗涤物Q不易从旋转桶4内取出，将相互缠绕的洗涤物Q彼此解开会很费劲。当对相互缠绕的洗涤物Q置之不理时，会因在洗涤物Q上留下严重的褶皱而有损洗涤物Q的平展性，因此需要尽快将相互缠绕的洗涤物Q解开。因此，控制部21在脱水运转后执行将旋转桶4内的洗涤物Q平展的平展运转。图3是表示立式洗衣机1所执行的平展运转的流程图。平展运转包括剥离处理、剥离处理后的解开处理以及解开处理后的最终处理，控制部21在平展运转中按顺序执行这些处理。Assume that at the end of the dehydration operation, in detail, the final dehydration operation, the plurality of laundry Q in the rotating tub 4 is in a state of being entangled with each other and attached to the inner peripheral surface 4C of the rotating tub 4 (refer to the figure described later). 4). The laundry Q in this state is not easy to take out from the rotating tub 4, and it takes a lot of effort to untie the laundry Q entangled with each other. When the intertwined laundry Q is ignored, serious wrinkles will be left on the laundry Q and the flatness of the laundry Q will be impaired. Therefore, it is necessary to untie the intertwined laundry Q as soon as possible. Therefore, the control unit 21 executes a flat operation for flattening the laundry Q in the rotary tub 4 after the dehydration operation. FIG. 3 is a flowchart showing the horizontal operation performed by the vertical washing machine 1. As shown in FIG. The flat operation includes a peeling process, an unraveling process after the peeling process, and a final process after the unraveling process, and the control unit 21 executes these processes in order during the flattening operation.
在剥离处理中，控制部21控制马达6和传递机构7，将马达6的驱动力的传递目标仅设为旋转翼5，通过反复进行马达6的接通和断开来使旋转翼5逆转(步骤S1)。旋转翼5的逆转是指旋转翼5反复进行正转和反转。旋转翼5旋转时的马达6的转速例如为500rpm～700rpm。逆转的旋转翼5沿围绕轴线J的周向P将以相互缠绕的状态贴附于旋转桶4的内周面4C的洗涤物Q剥落，由此从内周面4C剥离洗涤物Q。当反复进行规定时间的旋转翼5的逆转时，控制部21通过使马达6停止来使旋转翼5的逆转停止(步骤S2)。由此，剥离处理结束。在剥离处理结束时，在旋转桶4内从内周面4C被剥离掉的洗涤物Q处于聚集在旋转桶4的旋转中心侧也就是轴线J侧的状态(参照图5)。In the peeling process, the control unit 21 controls the motor 6 and the transmission mechanism 7 to set the transmission target of the driving force of the motor 6 to only the rotor 5, and to reverse the rotation of the rotor 5 by repeatedly turning on and off the motor 6 ( Step S1). The reverse rotation of the rotor 5 means that the rotor 5 repeatedly rotates forward and backward. The rotation speed of the motor 6 when the rotor blade 5 rotates is, for example, 500 rpm to 700 rpm. The reversing rotating blade 5 peels off the laundry Q attached to the inner peripheral surface 4C of the rotating tub 4 in a tangled state along the circumferential direction P around the axis J, thereby peeling the laundry Q from the inner peripheral surface 4C. When the reverse rotation of the rotary blade 5 is repeated for a predetermined time, the control unit 21 stops the reverse rotation of the rotary blade 5 by stopping the motor 6 (step S2). Thus, the peeling process ends. At the end of the peeling process, the laundry Q peeled off from the inner peripheral surface 4C in the rotary tub 4 is in a state of being gathered on the rotation center side of the rotary tub 4, that is, on the axis J side (refer to FIG. 5).
在剥离处理后的解开处理中，控制部21控制马达6和传递机构7，将马达6的驱动力的传递目标设为旋转桶4和旋转翼5，以比脱水转速低的解开转速使旋转桶4低速旋转(步骤S3)。由此，在旋转桶4内产生比脱水运转时弱的离心力。通过剥离处理而从旋转桶4的内周面4C被剥离掉但处于相互缠绕的状态的多个洗涤物Q(参照图5)在该离心力下被拉扯伸展而分离，因此能高效地将旋转桶4内的多个洗涤物Q之间的缠绕解开。需要说明的是，在解开处理中，旋转翼5与旋转桶4一体旋转。In the unraveling process after the peeling process, the control unit 21 controls the motor 6 and the transmission mechanism 7, and sets the transmission target of the driving force of the motor 6 to the rotating tub 4 and the rotating wing 5, and sets the unraveling rotation speed lower than the dehydration rotation speed. The rotating tub 4 rotates at a low speed (step S3). As a result, centrifugal force weaker than that during the dehydration operation is generated in the rotating tub 4. A plurality of laundry Q (refer to FIG. 5) that have been peeled off from the inner peripheral surface 4C of the rotary tub 4 by the peeling process but are entangled with each other are pulled and stretched and separated by the centrifugal force, so the rotary tub can be efficiently separated The entanglement between the multiple laundry Q in 4 is unwound. It should be noted that, in the unraveling process, the rotating wing 5 and the rotating bucket 4 rotate integrally.
当计时器24计测出从解开转速下的旋转桶4的低速旋转的开始(步骤S3)起经过了规定时间时，控制部21通过使马达6停止来使旋转桶4的旋转停止(步骤S4)。由此，解开处理结束。在解开处理结束时，被解开后的洗涤物Q因在解开处理中产生的离心力而处于稍微向径向R的外侧也就是旋转桶4的内周面 4C侧移动后的状态(参照图6)。When the timer 24 measures that a predetermined time has elapsed since the start of the low-speed rotation of the rotating tub 4 at the untwisted rotation speed (step S3), the control unit 21 stops the rotation of the rotating tub 4 by stopping the motor 6 (step S3). S4). As a result, the unlocking process ends. At the end of the unwrapping process, the unwrapped laundry Q is slightly moved to the outer side of the radial direction R, that is, the inner peripheral surface 4C side of the rotating tub 4, due to the centrifugal force generated during the unwrapping process (refer to Figure 6).
在解开处理后的最终处理中，控制部21控制马达6和传递机构7，将马达6的驱动力的传递目标仅设为旋转翼5，使旋转翼5逆转(步骤S5)。旋转翼5旋转时的马达6的转速可以与剥离处理中的旋转翼5旋转时的马达6的转速相同，也可以比剥离处理的情况小。逆转的旋转翼5使因解开处理而向径向R的外侧移动后的洗涤物Q向旋转桶4的旋转中心侧靠近。当反复进行规定时间的旋转翼5的逆转时，控制部21通过使马达6停止来使旋转翼5的逆转停止(步骤S6)。由此，最终处理结束。In the final processing after the unwinding processing, the control unit 21 controls the motor 6 and the transmission mechanism 7 to set the transmission destination of the driving force of the motor 6 to only the rotor 5 and reverse the rotor 5 (step S5). The rotation speed of the motor 6 when the rotor blade 5 is rotating may be the same as the rotation speed of the motor 6 when the rotor blade 5 is rotating in the peeling process, or may be smaller than in the case of the peeling process. The reversing rotor blade 5 brings the laundry Q moved to the outer side of the radial direction R due to the unraveling process closer to the rotation center side of the rotary tub 4. When the reverse rotation of the rotary blade 5 is repeated for a predetermined time, the control unit 21 stops the reverse rotation of the rotary blade 5 by stopping the motor 6 (step S6). Thus, the final processing ends.
在平展运转中设定例如3分钟的运转时间，因此，在从平展运转的开始也就是步骤S1中的旋转翼5的逆转的开始起直至经过运转时间为止的期间(在步骤S7中为否)，控制部21依次反复进行剥离处理、解开处理以及最终处理。如果计时器24计测出在最终处理结束时经过了运转时间(在步骤S7中为是)，则控制部21使平展运转结束。平展运转结束后也就是最后的最终处理后的旋转桶4内的洗涤物Q以缠绕被解开后的状态配置于旋转桶4的旋转中心侧的易于取出的位置(参照图7)，因此用户能容易地取出旋转桶4内的洗涤物Q。In the flat operation, an operation time of, for example, 3 minutes is set. Therefore, during the period from the start of the flat operation, that is, the start of the reverse rotation of the rotor 5 in step S1, until the elapse of the operation time (No in step S7) , The control unit 21 sequentially repeats the peeling process, the unwinding process, and the final process. If the timer 24 measures that the operation time has passed at the end of the final processing (YES in step S7), the control unit 21 ends the flat operation. After the completion of the flat operation, that is, the final final treatment, the laundry Q in the rotating tub 4 is arranged in a state where the entanglement is unwound at a position that is easy to take out on the side of the rotation center of the rotating tub 4 (refer to FIG. 7), so the user The laundry Q in the rotating tub 4 can be easily taken out.
此外，在平展运转中，洗涤物Q在通过剥离处理从旋转桶4的内周面4C被剥离掉后，通过解开处理被解开为不与其他洗涤物Q缠绕，因此在从旋转桶4内取出的洗涤物Q上不易留下严重的褶皱。因此，能谋求提高脱水运转后的洗涤物的平展性。In addition, in the flat operation, after the laundry Q is peeled off from the inner peripheral surface 4C of the rotating tub 4 by the peeling process, it is unwound by the unwinding process so as not to be entangled with other laundry Q. Therefore, the laundry Q is removed from the rotating tub 4 It is not easy to leave serious wrinkles on the laundry Q taken out from the inside. Therefore, it is possible to improve the flatness of the laundry after the dehydration operation.
解开处理中的解开转速具体而言为150rpm以上且350rpm以下。通过以这样规定的解开转速使旋转桶4旋转，能产生不会使旋转桶4内的洗涤物Q贴附于旋转桶4的内周面4C并适合于将旋转桶4内的洗涤物Q解开的强度的离心力。The unraveling rotation speed in the unraveling process is specifically 150 rpm or more and 350 rpm or less. By rotating the rotating tub 4 at such a predetermined untwisting speed, the laundry Q in the rotating tub 4 does not stick to the inner peripheral surface 4C of the rotating tub 4 and is suitable for the laundry Q in the rotating tub 4 Centrifugal force of unraveling strength.
另外，当解开转速小于150rpm时，离心力太弱，因此难以将洗涤物Q彼此拉开。另一方面，当解开转速大于350rpm时，离心力强，因此会像脱水运转那样洗涤物Q再次贴附于旋转桶4的内周面4C(参照图4)。如此一来，为了从内周面4C剥离洗涤物Q，需要延长接下来的最终处理的处理时间、再次的剥离处理的处理时间。当最终处理、剥离处理的处理时间变长时，洗涤物Q恐怕会因洗涤物Q与旋转翼5的接触时间变长而损伤。但是，通过将解开转速设定为150rpm以上且350rpm以下，能抑制洗涤物Q向旋转桶4的内周面4C的贴附而 缩短最终处理、剥离处理的处理时间，因此能减轻洗涤物Q的损伤。此外，在剥离处理、最终处理中，当使旋转翼5仅向正转方向或反转方向中的某一方向旋转时，洗涤物Q恐怕会扭结，但通过像本实施方式那样使旋转翼5逆转，能抑制洗涤物Q的扭结。In addition, when the untwisting rotation speed is less than 150 rpm, the centrifugal force is too weak, and therefore it is difficult to pull the laundry Q away from each other. On the other hand, when the unwinding rotation speed is greater than 350 rpm, the centrifugal force is strong, so the laundry Q will be attached to the inner peripheral surface 4C of the rotating tub 4 again like a dehydration operation (see FIG. 4). In this way, in order to peel the laundry Q from the inner peripheral surface 4C, it is necessary to extend the processing time of the next final processing and the processing time of the second peeling processing. When the treatment time of the final treatment and the peeling treatment becomes longer, the laundry Q may be damaged due to the longer contact time between the laundry Q and the rotor 5. However, by setting the unwound rotation speed to 150 rpm or more and 350 rpm or less, the adhesion of the laundry Q to the inner peripheral surface 4C of the rotating tub 4 can be suppressed, and the processing time of the final treatment and the peeling treatment can be shortened, so that the laundry Q can be reduced. Damage. In addition, in the peeling treatment and the final treatment, when the rotor blade 5 is rotated only in one of the forward rotation direction or the reverse direction, the laundry Q may be kinked. However, by making the rotor blade 5 like this embodiment The reversal can suppress the kinking of the laundry Q.
本发明并不限定于以上说明的实施方式，能在技术方案所记载的范围内进行各种变更。The present invention is not limited to the embodiments described above, and various modifications can be made within the scope described in the technical solution.
例如，作为旋转桶4的旋转中心的轴线J在本实施方式中垂直延伸，但也可以相对于垂直方向倾斜地配置。此外，在平展运转中，可以省略最终处理。For example, the axis J, which is the center of rotation of the rotating tub 4, extends vertically in this embodiment, but it may be arranged obliquely with respect to the vertical direction. In addition, in the flat operation, the final processing can be omitted.

Claims (3)

  1. 一种立式洗衣机，其特征在于，包括：A vertical washing machine, characterized in that it comprises:
    驱动单元，产生驱动力；Drive unit to generate driving force;
    旋转桶，具有形成有洗涤物的出入口的上端部和设有底壁的下端部，所述旋转桶接受所述驱动单元的驱动力而旋转；A rotating tub having an upper end formed with an entrance and exit of the laundry and a lower end provided with a bottom wall, the rotating barrel receiving the driving force of the driving unit to rotate;
    旋转翼，在所述旋转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；以及A rotating wing is arranged on the bottom wall in the rotating barrel and rotates by receiving the driving force of the driving unit; and
    控制单元，通过控制所述驱动单元来使所述旋转桶和所述旋转翼旋转，并执行脱水运转和平展运转，所述脱水运转是通过使所述旋转桶以规定的脱水转速旋转来将所述旋转桶内的洗涤物脱水的运转，所述平展运转是在所述脱水运转后将所述旋转桶内的洗涤物平展的运转，The control unit, by controlling the drive unit to rotate the rotating tub and the rotating wings, and perform a dehydration operation and a flattening operation. The dehydration operation is to rotate the rotating tub at a predetermined dehydration rotation speed to rotate the rotating drum and the rotating wing. The operation of dehydrating the laundry in the rotating tub, and the flattening operation is an operation of flattening the laundry in the rotating tub after the dehydrating operation,
    所述控制单元在所述平展运转中执行剥离处理和解开处理，所述剥离处理是通过反复进行所述旋转翼的正转和反转来从所述旋转桶的内周部剥离洗涤物的处理，所述解开处理是在所述剥离处理后通过使所述旋转桶以比所述脱水转速低的解开转速旋转来将所述旋转桶内的洗涤物的缠绕解开的处理。The control unit performs a peeling process and an unwinding process during the flat operation, and the peeling process is performed by repeatedly performing forward and reverse rotations of the rotary wing to peel the laundry from the inner periphery of the rotary tub The unwrapping process is a process of unwrapping the laundry in the rotating tub by rotating the rotating tub at an unwrapping rotation speed lower than the dehydration rotation speed after the peeling treatment.
  2. 根据权利要求1所述的立式洗衣机，其特征在于，，The vertical washing machine according to claim 1, characterized in that,
    所述解开转速为150rpm以上且350rpm以下。The unraveling speed is 150 rpm or more and 350 rpm or less.
  3. 根据权利要求1或2所述的立式洗衣机，其特征在于，，The vertical washing machine according to claim 1 or 2, characterized in that,
    所述控制单元在所述平展运转中执行最终处理，所述最终处理是在所述解开处理后通过反复进行所述旋转翼的正转和反转来使所述旋转桶内的洗涤物向所述旋转桶的旋转中心侧靠近的处理。The control unit performs final processing during the flattening operation, and the final processing is to make the laundry in the rotating tub rotate by repeating the forward rotation and reverse rotation of the rotary wing after the unraveling processing. The processing where the rotation center side of the rotating barrel is close to each other.
PCT/CN2020/132425 2019-12-25 2020-11-27 Vertical washing machine WO2021129311A1 (en)

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