WO2023103998A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2023103998A1
WO2023103998A1 PCT/CN2022/136734 CN2022136734W WO2023103998A1 WO 2023103998 A1 WO2023103998 A1 WO 2023103998A1 CN 2022136734 W CN2022136734 W CN 2022136734W WO 2023103998 A1 WO2023103998 A1 WO 2023103998A1
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WO
WIPO (PCT)
Prior art keywords
water
washing
water supply
tub
water level
Prior art date
Application number
PCT/CN2022/136734
Other languages
English (en)
French (fr)
Inventor
大槻太郎
荒井英行
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.)
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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
Publication of WO2023103998A1 publication Critical patent/WO2023103998A1/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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/38—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • 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
    • D06F33/54—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • D06F33/58—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • 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

Definitions

  • the invention relates to a washing machine.
  • Patent Document 1 describes an example of such a washing machine.
  • the washing and dewatering tub rotates at a low speed and is supplied with water from above the washing and dehydrating tub.
  • water is absorbed by the laundry in the washing and dehydrating tub.
  • the washing and dehydration bucket rotates at a high speed, the laundry is dehydrated, and the detergent contained in the laundry is discharged with the water.
  • the shower rinse process water supply to the laundry is performed for a fixed period.
  • the flow rate of water supplied from the faucet to the washing machine may vary depending on the usage of water pipes in other places in the house, etc. Therefore, the flow rate of the water supply during the shower rinsing process may also vary from time to time. Therefore, when water is supplied for a fixed period during the shower rinsing process, if the water supply flow rate is low, water may not be sufficiently absorbed by the laundry as a whole, and it may be difficult to obtain sufficient rinsing performance.
  • Patent Document 1 Japanese Patent Laying-Open No. 07-163783
  • the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a washing machine that can easily obtain sufficient rinsing performance in the shower rinsing process regardless of the water supply flow rate or the amount of laundry.
  • the washing machine includes: an outer tub elastically supported in the casing; a washing and dehydrating tub rotatably arranged in the outer tub; a drive unit for driving the washing and dehydrating tub;
  • the upper part of the washing and dehydrating bucket supplies water to the washing and dehydrating bucket;
  • the drain valve is used to open and close the drain port provided at the bottom of the outer bucket;
  • the water level detection part is used to detect the water level in the outer bucket and a control unit that executes a shower rinse process in which the driving unit rotates the washing and dehydrating tub and supplies water through the water supply unit.
  • control unit supplies water from the water supply unit with the drain valve closed, and based on the water level in the outer tub reaching a preset water supply stop water level, The water supply from the water supply unit is stopped.
  • the amount of water supplied increases as the amount of laundry increases, and a constant water supply amount can be ensured even if the flow rate of water supplied is uneven.
  • the laundry in the washing and dehydrating tub can be sufficiently hydrated, and sufficient rinsing performance can be ensured.
  • the water supply stop water level may be set to a water level lower than a water level at which water stored in the outer tub comes into contact with the bottom surface of the washing and dehydrating tub.
  • the water stored in the outer tub is less likely to come into contact with the bottom surface of the rotating washing and dehydrating tub during the shower rinse. Therefore, it can prevent that the rotational load of the washing-dehydration tub increases due to contact with water.
  • the following structure may further be adopted: in the dehydration process subsequent to the spray rinsing process, the control unit , so that the rotation speed of the washing and dehydrating tub that has been continuously rotating since the spraying and rinsing process starts to increase.
  • the water starts to be discharged from the water supply stop water level lower than the bottom portion of the washing and dehydrating tub. Therefore, even if the waiting time is set to be short, the water in the outer tub when the rotation speed of the washing and dehydrating tub starts to rise The water level is also far below the bottom face of the washing and dehydrating bucket. Thereby, even if the water level in the outer tub temporarily rises, the water is less likely to come into contact with the bottom portion of the rotating washing and dehydrating tub. Therefore, since the waiting time can be set short, the rotation speed of the washing and dehydrating tub can be started to increase as soon as possible after the shower rinsing course is finished, and the dehydration of the laundry can be started.
  • the present invention it is possible to provide a washing machine which can easily and sufficiently obtain the rinsing performance of the shower rinsing process regardless of the water supply flow rate or the amount of laundry.
  • Fig. 1 is a side sectional view of a fully automatic washing machine according to an embodiment.
  • Fig. 2 is a block diagram showing the configuration of the fully automatic washing machine according to the embodiment.
  • FIG. 3 (a) is a flow chart showing the control process executed by the control unit during the shower rinsing process according to the embodiment, and (b) is a flowchart showing the intermediate dehydration process following the shower rinsing process according to the embodiment. This is a flowchart of the control processing executed by the control unit.
  • FIG. 4 (a), (b) is a figure for demonstrating the shower rinse process of embodiment.
  • FIG. 1 is a side sectional view of a fully automatic washing machine 1 .
  • the fully automatic washing machine 1 is provided with a housing 10 constituting an external appearance.
  • the housing 10 includes a rectangular cylindrical body part 11 with open upper and lower surfaces, an upper panel 12 covering the upper surface of the body part 11 , and a foot stand 13 for supporting the body part 11 .
  • An inlet 14 for laundry is formed on the top panel 12 .
  • the inlet 14 is covered with an openable and closable upper cover 15 .
  • an outer tub 20 with an open upper surface is elastically hooked and supported by four suspension rods 21 having vibration-proof devices.
  • the tub 20 has a substantially bottomed cylindrical shape and includes a bottom surface 201 and a peripheral surface 202 .
  • a washing and dehydrating tub 22 with an open upper surface is arranged inside the outer tub 20, a washing and dehydrating tub 22 with an open upper surface is arranged.
  • the washing and dehydrating tub 22 rotates around a rotation axis extending in the vertical direction.
  • the washing and dehydrating tub 22 has a substantially bottomed cylindrical shape and includes a bottom surface 221 and a peripheral surface 222 . Predetermined gaps are provided between the bottom surface 221 of the washing and dehydrating tub 22 and the bottom surface 201 of the outer tub 20 and between the peripheral surface 222 of the washing and dehydrating tub 22 and the peripheral surface 202 of the outer tub 20 .
  • a balance ring 23 is provided on the top of the washing and dehydrating tub 22 .
  • a pulsator 24 is rotatably arranged at the bottom of the washing and dehydrating tub 22 .
  • a plurality of blades 24a are radially provided on the surface of the pulsator 24 .
  • a drive unit 30 that generates torque for driving the washing and dehydrating tub 22 and the pulsator 24 is disposed on the outer bottom of the tub 20 .
  • the drive unit 30 includes a drive motor 31 and a transmission mechanism portion 32 .
  • the transmission mechanism part 32 has a clutch mechanism 32a, and by switching the clutch mechanism 32a, only the torque of the driving motor 31 is transmitted to the pulsator 24 during the washing process, the water storage rinsing process, and the water filling rinsing process, so that only the pulsator 24 is rotated.
  • the torque of the drive motor 31 is transmitted to the pulsator 24 and the washing and dehydrating tub 22 so that the pulsator 24 and the washing and dehydrating tub 22 rotate integrally.
  • the drive unit 30 corresponds to the drive unit of the present invention.
  • a drain opening 20 a is formed on the outer bottom of the tub 20 .
  • a drain valve 40 for opening and closing the drain port portion 20a is provided at the drain port portion 20a.
  • the drain valve 40 is connected to a drain hose 41 . When the drain valve 40 is opened, the water stored in the washing and dehydrating tub 22 and the outer tub 20 is discharged to the outside of the machine through the drain port 20 a and the drain hose 41 .
  • a water supply unit 50 for supplying tap water into the washing and dehydrating tub 22 is arranged at the rear of the upper panel 12 .
  • the water supply unit 50 has a water supply valve 51 .
  • the water inlet 51a of the water supply valve 51 is connected to a water faucet via a water supply hose.
  • tap water from the faucet flows through the water supply path 52 and is supplied into the washing and dehydrating tub 22 from the water inlet 53 .
  • the water injection port 53 faces directly downward, and the water released from the water injection port 53 falls near the middle position between the center of the washing and dehydrating tub 22 and the peripheral surface 222.
  • the water injection port 53 may have a wide opening extending along the circumferential direction of the washing and dehydrating tub 22 .
  • the water supply unit 50 corresponds to the water supply unit of the present invention.
  • FIG. 2 is a block diagram showing the configuration of the fully automatic washing machine 1 .
  • the fully automatic washing machine 1 includes an operation unit 61 and a water level sensor 62 in addition to the above configuration.
  • the fully automatic washing machine 1 includes a control unit 100 .
  • the control unit 100 includes: a control unit 101 , a storage unit 102 , a motor drive unit 103 , a clutch drive unit 104 , a water supply drive unit 105 , and a drain drive unit 106 .
  • the operation part 61 includes a power button for turning on and off the power of the fully automatic washing machine 1, a start/pause button for starting and pausing the operation, and a button for selecting an arbitrary operation mode from a plurality of operation modes of the washing operation.
  • Various operation buttons such as mode selection buttons.
  • the operation unit 61 inputs an input signal corresponding to an operation button operated by the user to the control unit 101 .
  • the water level sensor 62 detects the water level in the washer/dehydration tub 22 , that is, the outer tub 20 , and inputs a water level signal corresponding to the detected water level to the control unit 101 .
  • the water level sensor 62 can detect the water supply stop water level which is a water level at a position lower than the bottom surface portion 221 of the washing and dehydrating tub 22 in the outer tub 20 .
  • the water supply stop water level is pre-set and used for control during spray rinsing.
  • the water level sensor 62 corresponds to the water level detection unit of the present invention.
  • the water level sensor 62 may be constituted by, for example, a diaphragm pressure sensor.
  • the pressure sensor is connected to the air trap provided at the bottom of the outer tub 20 through a hose, and detects the air pressure in the air trap which changes according to the water level. The performance of the pressure sensor and the arrangement position of the air trap are determined so that the above-mentioned water supply stop water level can be detected.
  • the motor drive unit 103 drives the drive motor 31 based on a control signal output from the control unit 101 .
  • the motor drive unit 1 includes a rotation sensor for detecting the rotation speed of the drive motor 31 , an inverter circuit, etc., and adjusts drive power so that the drive motor 31 rotates at the rotation speed set by the control unit 101 .
  • the clutch drive unit 104 drives the clutch mechanism 32 a of the transmission mechanism unit 32 in accordance with a control signal output from the control unit 101 .
  • the water supply driving unit 105 drives the water supply valve 51 based on a control signal from the control unit 101 .
  • the drain drive unit 106 drives the drain valve 40 based on a control signal from the control unit 101 .
  • the storage unit 102 includes EEPROM (Electric Erasable Programmable Read Only Memory), RAM (Random Access Memory), and the like. Storage unit 102 stores programs for executing washing operations in various operation modes. In addition, various operating conditions for the washing operation are stored in the storage unit 102 .
  • EEPROM Electrical Erasable Programmable Read Only Memory
  • RAM Random Access Memory
  • the control unit 101 includes a CPU (Central Processing Unit) and the like, and controls the motor drive unit 103 , the clutch drive unit 104 , the water supply drive unit 105 , the drain drive unit 106 , and the like based on programs stored in the storage unit 102 .
  • CPU Central Processing Unit
  • Fully automatic washing machine 1 performs washing operations in various operation modes under the control of control unit 101 .
  • a washing process an intermediate dehydration process, a rinsing process, and a final dehydration process are sequentially performed.
  • the pulsator 24 performs normal rotation and reverse rotation while the water containing detergent is stored in the washing and dehydrating tub 22 .
  • the rotation of the pulsator 24 Through the rotation of the pulsator 24, a water flow is generated in the washing and dehydration tub 22, and the laundry is cleaned by the water flow and detergent.
  • a water storage rinsing course, a water filling rinsing course, or a shower rinsing course is selectively performed according to an operation mode or according to a user's setting.
  • two rinsing processes are performed with an intermediate dehydration process.
  • the shower rinsing course is often executed as the first rinsing course.
  • the pulsator 24 rotates forward and reverse when the water is stored in the washing and dewatering tub 22 , and water flow is generated in the washing and dehydrating tub 22 .
  • the laundry is rinsed by the generated water flow, and the detergent contained in the laundry is discharged into the water.
  • water is continuously supplied when the pulsator 24 rotates, and the water containing detergent is discharged from an unillustrated overflow port provided on the upper part of the outer tub 20 .
  • the washing and dewatering tub 22 rotates integrally with the pulsator 24 at a low speed and water is supplied into the washing and dehydrating tub 22 .
  • the water falls on the laundry and is absorbed by the laundry.
  • the drain valve 40 is closed, and the water not absorbed by the laundry is stored at the bottom of the outer tub 20 , that is, at a portion lower than the bottom surface portion 221 of the washing and dehydrating tub 22 .
  • the detergent contained in the laundry is discharged with the water. It should be noted that sometimes the spray rinsing process and the intermediate dehydration process are collectively referred to as the dehydration rinsing process.
  • the washing and dehydration tub 22 and the pulsator 24 are integrally rotated at a predetermined dehydration rotation speed at a high speed.
  • the laundry is dehydrated by centrifugal force generated in the washing and dehydrating tub 22 .
  • FIG. 3 is a flowchart showing control processing executed by the control unit 101 during the shower rinse.
  • (b) of Fig. 3 is a flowchart showing control processing executed by the control unit 101 in the intermediate spin-drying process subsequent to the shower rinsing process.
  • (a) and (b) of FIG. 4 are figures for demonstrating the shower rinse process.
  • (a) of Fig. 4 shows the situation of the spray rinsing process when a large amount of laundry is accommodated in the washing and dehydration tub 22, and
  • (b) of Fig. 4 shows the spray rinsing when a small amount of laundry is accommodated in the washing and dehydration tub 22 situation of the process.
  • the control part 101 closes the drain valve 40 (S101).
  • the drain valve 40 is opened to drain water from the tub 20 .
  • the control unit 101 starts the driving motor 31 to start the low-speed rotation of the washing and dehydrating tub 22 (S102).
  • the pulsator 24 rotates integrally with the washing and dehydrating tub 22 .
  • the rotational speed of the washer/dehydration tub 22 at this time is, for example, about 30 rpm, which is lower than the so-called lateral resonance point where the washer/dehydration tub 22 and the outer tub 20 vibrate largely in the horizontal direction due to resonance.
  • control part 101 opens the water supply valve 51, and starts water supply into the washing-dehydration tub 22 (S103). It should be noted that the rotation of the washing and dehydrating tub 22 may be started simultaneously with the water supply, or the water supply may be started before the rotation of the washing and dehydrating tub 22 .
  • the water released from the water injection port 53 is poured onto the laundry that is transferred to the laundry near the water injection port 53 by the rotation of the washing and dehydrating tub 22, and the water that is poured down Absorbed by washing.
  • the water not absorbed by the laundry and the detergent-containing water released from the laundry after absorption are drained from the washing and dehydrating tub 22 and stored in the bottom of the outer tub 20 . Thereby, the water level in the outer tub 20 rises.
  • the control unit 101 detects the water level in the outer tub 20 through the water level sensor 62, and monitors whether the water level reaches a preset water supply stop water level (S104). As shown in (a) and (b) of FIG. 4 , the water supply stop water level is set to a water level lower than the water level at which the water stored in the outer tub 20 contacts the bottom portion 221 of the washing and dehydrating tub 22 .
  • the control unit 101 closes the water supply valve 51 to stop the water supply (S105). Then, the control unit 101 closes the drain valve 40 (S106). As a result, drainage from the tub 20 starts. In this way, the shower rinsing process ends.
  • the amount of water supplied until the water level in the tub 20 reaches the water supply stop water level is about the same when the amount of laundry is about the same. Therefore, regardless of the magnitude of the water supply flow rate, the entire laundry in the washing and dehydrating tub 22 can be sufficiently hydrated.
  • the control unit 101 monitors the end of the spray rinsing process, that is, whether a preset waiting time has elapsed since the drain valve 40 was opened (S201).
  • the waiting time is set to, for example, about several seconds. During the elapse of the waiting time, the water level in the outer tub 20 gradually decreases.
  • the control unit 101 increases the rotation speed of the drive motor 31 to increase the rotation speed of the washing and dehydrating tub 22 to a preset dehydration rotation speed (for example, 800 rpm) (S202).
  • a preset dehydration rotation speed for example, 800 rpm
  • the water supply stop water level is set to a water level lower than the position of the bottom surface portion 221 of the washing and dehydrating tub 22 . Therefore, even if the waiting time is set short, the water level in the outer tub 20 when the rotation speed of the washing and dehydrating tub 22 starts to rise is also far lower than the bottom portion 221 of the washing and dehydrating tub 22.
  • the waiting time can be set short, the rotation speed of the washing and dehydrating tub 22 can be started to increase as soon as possible after the shower rinse process is completed, and the dehydration of the laundry can be started.
  • the waiting time is still set, there is no need to stop the water supply from being too low in order to avoid water contacting the washing and dehydrating tub 22 . Therefore, it is possible to prevent the water level sensor 62 from being difficult to detect that the water level has reached the water supply stop water level.
  • the control unit 101 When the rotational speed of the washing and dehydrating tub 22 reaches the dehydration rotational speed (S203: YES), the control unit 101 maintains the dehydration rotational speed (S204). Then, when the preset dehydration time elapses (S205: YES), the control unit 101 stops the drive motor 31 to stop the rotation of the washing and dehydrating tub 22 (S206). In this way, the intermediate dehydration process ends.
  • the detergent By dehydrating the laundry in the intermediate dehydration process, the detergent is discharged from the laundry along with the water absorbed in the spray rinse process, and the laundry is rinsed. It should be noted that, in the shower rinsing process, the laundry is also rinsed by continuously showering water from above to detach the detergent-containing water from the laundry.
  • the water supply unit 50 supplies water with the drain valve 40 closed, and stops the water supply when the water level in the tub 20 reaches the preset water supply stop water level.
  • the amount of water supply increases as the amount of laundry increases, and a constant water supply amount can be ensured even if the flow rate of water supply is uneven.
  • the laundry in washing-dehydration tub 22 can be sufficiently hydrated, and sufficient rinsing performance can be ensured.
  • the water supply stop water level is set to a water level lower than the water level at which the water stored in the outer tub 20 contacts the bottom surface portion 221 of the washing and dehydrating tub 22.
  • the water inside is less likely to come into contact with the bottom portion 221 of the rotating washing and dehydrating tub 22 . Thereby, it can prevent that the rotation load of the washer-dehydration tub 22 increases due to contact with water.
  • the water in the outer tub 20 starts to drain from the water supply stop water level lower than the bottom surface portion 221 of the washing and dehydrating tub 22.
  • the waiting time until now is set short, and the water level in the outer tub 20 when the rotating speed of the washing and dehydrating tub 22 starts to rise is also far lower than the bottom portion 221 of the washing and dehydrating tub 22.
  • the water level in the outer tub 20 rises temporarily, the water is less likely to come into contact with the bottom surface portion 221 of the rotating washing and dehydrating tub 22 .
  • the waiting time can be set short, the rotation speed of the washing and dehydrating tub 22 can be started to increase as soon as possible after the shower rinse process is completed, and the dehydration of the laundry can be started.
  • the rotation speed of washing and dehydration tub 22 is increased from the rotation speed during the shower rinse process, so that dehydration of laundry can be started earlier.
  • the water supply stop water level is set to a water level lower than the water level at which the water stored in the outer tub 20 contacts the bottom surface portion 221 of the washing and dehydrating tub 22 .
  • the water supply stop water level may be set to a water level higher than the water level at which the water stored in the outer tub 20 contacts the bottom surface portion 221 of the washing/dehydrating tub 22 .
  • the water level sensor 62 is configured to detect a water level by detecting a change in water pressure, for example.
  • water level sensors of other structures may also be used to detect the water level in the tub 20 .
  • a water level sensor composed of a pair of electrodes may be disposed on the bottom of the tub 20 . In this case, when the water level in the outer tub 20 reaches the water supply stop water level, the pair of electrodes are energized by the water interposed therebetween, and a detection signal indicating that the water supply has reached the water supply stop water level is output from the water level sensor to the control unit 101. .
  • the rotation speed of the washing and dehydrating tub 22 is started to increase after the waiting time has elapsed since the shower rinsing course is completed.
  • the waiting time may not be set, and the rotational speed of the washing and dehydrating tub 22 may be started to increase immediately after the shower rinse process is completed.
  • the washing and dehydrating tub 22 continues to rotate even after the shower rinsing process ends.
  • the washing and dehydration tub 22 stops rotating when the spray rinsing process ends. In this case, during the intermediate dehydration process, the washing and dehydration tub 22 starts to rotate from the stopped state, and the rotation speed thereof increases.
  • water supply unit 50 does not include a detergent container for storing detergent in advance.
  • water supply unit 50 may include a detergent container. In this case, the water flowing out of the detergent container flows into the water injection port 53 .

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

Abstract

一种洗衣机，无论供水流量、洗涤物的量的大小如何，都能容易地充分获得喷淋漂洗过程的漂洗性能。全自动洗衣机(1)具备：洗涤脱水桶(22)，能旋转地配置于外桶(20)内；驱动单元(30)，驱动洗涤脱水桶(22)；供水单元(50)，从洗涤脱水桶(22)的上方向洗涤脱水桶(22)内进行供水；排水阀(40)，用于对设于外桶(20)的底部的排水口部(20a)进行开闭；水位传感器，检测外桶(20)内的水位；以及控制部，执行通过驱动单元(30)来使洗涤脱水桶(22)旋转并且通过供水单元(50)来进行供水的喷淋漂洗过程。在喷淋漂洗过程中，控制部在排水阀(40)关闭的状态下进行供水单元(50)的供水，并且基于外桶(20)内的水位到达预先设定的供水停止水位来使供水单元(50)的供水停止。

Description

洗衣机 技术领域
本发明涉及一种洗衣机。
背景技术
以往，已知一种进行喷淋漂洗过程的洗衣机。例如，专利文献1中记载了这样的洗衣机的一个例子。
在喷淋漂洗过程中，洗涤脱水桶低速旋转并且从洗涤脱水桶的上方被进行供水。由此，水被洗涤脱水桶内的洗涤物吸收。在喷淋漂洗过程后续的脱水过程中，当洗涤脱水桶高速旋转时洗涤物脱水，洗涤物中所含的洗涤剂随水排出。喷淋漂洗过程即向洗涤物进行的供水在固定的期间进行。
从水龙头向洗衣机的供水流量可能会根据房屋的其他场所的自来水管道的使用状况等而发生变化。由此，喷淋漂洗过程中的供水流量也可能会随之时常变化。因此，在喷淋漂洗过程中，在固定的期间进行供水的情况下，当供水流量低时，会有无法使洗涤物整体充分地吸收水从而难以充分获得漂洗性能之虞。
此外，在固定的期间进行供水的情况下，当洗涤脱水桶内的洗涤物的量多时，也会有无法使洗涤物整体充分地吸收水从而难以充分获得漂洗性能之虞。
现有技术文献
专利文献
专利文献1：日本特开平07－163783号公报
发明内容
发明所要解决的问题
本发明鉴于所述的问题而完成，其目的在于提供一种无论供水流量、洗涤 物的量的大小如何，都能容易地充分获得喷淋漂洗过程的漂洗性能的洗衣机。
用于解决问题的方案
本发明的主要的方案的洗衣机具备：外桶，弹性地支承于箱体内；洗涤脱水桶，能旋转地配置于所述外桶内；驱动部，驱动所述洗涤脱水桶；供水部，从所述洗涤脱水桶的上方向所述洗涤脱水桶内进行供水；排水阀，用于对设于所述外桶的底部的排水口部进行开闭；水位检测部，检测所述外桶内的水位；以及控制部，执行通过所述驱动部来使所述洗涤脱水桶旋转并且通过所述供水部来进行供水的喷淋漂洗过程。其中，在所述喷淋漂洗过程中，所述控制部在所述排水阀关闭的状态下进行所述供水部的供水，并且基于所述外桶内的水位到达预先设定的供水停止水位来使所述供水部的供水停止。
根据上述结构，能使洗涤物的量越多则供水量越多，并且，即使供水流量不均，也能确保固定的供水量。由此，无论洗涤物的量、供水流量的大小如何，都能够使洗涤脱水桶内的洗涤物充分地含水，能充分地确保漂洗性能。
在本方案的洗衣机中，可以是，所述供水停止水位设定为比蓄于所述外桶内的水与所述洗涤脱水桶的底面部接触的水位低的水位。
根据上述结构，在喷淋漂洗过程中，蓄于外桶内的水不易与旋转的洗涤脱水桶的底面部接触。由此，能防止由于与水接触而导致洗涤脱水桶的旋转负荷增大。
在采用上述结构的情况下，进而可以采用如下结构：在所述喷淋漂洗过程后续的脱水过程中，所述控制部在从所述喷淋漂洗过程结束起经过了预先设定的等待时间后，使从所述喷淋漂洗过程起持续旋转的所述洗涤脱水桶的转速开始上升。
根据这样的结构，在外桶内，从低于洗涤脱水桶的底面部的位置的供水停止水位开始排水，因此，即使等待时间设定得短，洗涤脱水桶的转速开始上升时的外桶内的水位也远低于洗涤脱水桶的底面部。由此，即使发生外桶内的暂时性的水位上升，水也不易与旋转的洗涤脱水桶的底面部接触。因此，能将等待时间设定得短，因此能够在喷淋漂洗过程结束后尽快使洗涤脱水桶的转速开始上升来开始洗涤物的脱水。
而且，由于仍然设定了等待时间，因此无需使供水停止水位过低。因此，能避免水位检测部对水位到达供水停止水位的检测变得困难。
进而，设为使洗涤脱水桶的转速从喷淋漂洗过程中的转速上升，因此能够更早开始洗涤物的脱水。
发明效果
根据本发明，能提供一种无论供水流量、洗涤物的量的大小如何，都能容易地充分获得喷淋漂洗过程的漂洗性能的洗衣机。
本发明的效果以及意义通过以下所示的实施方式的说明会更加明了。不过，以下实施方式仅仅是实施本发明时的一个示例，本发明不受以下实施方式中所记载的内容的任何限制。
附图说明
图1是实施方式的全自动洗衣机的侧面剖视图。
图2是示出实施方式的全自动洗衣机的结构的框图。
图3中，(a)是示出实施方式的在喷淋漂洗过程中由控制部执行的控制处理的流程图，(b)是示出实施方式的在喷淋漂洗过程后续的中间脱水过程中由控制部执行的控制处理的流程图。
图4中，(a)、(b)是用于说明实施方式的喷淋漂洗过程的图。
附图标记说明
1：全自动洗衣机(洗衣机)；10：箱体；20：外桶；20a：排水口部；22：洗涤脱水桶；30：驱动单元(驱动部)；40：排水阀；50：供水单元(供水部)；62：水位传感器(水位检测部)；101：控制部；221：底面部。
具体实施方式
以下，参照附图对作为本发明的洗衣机的一个实施方式的全自动洗衣机1进行说明。
图1是全自动洗衣机1的侧面剖视图。
全自动洗衣机1具备构成外观的箱体10。箱体10包括上下表面开放的方形筒状的机身部11、覆盖机身部11的上表面的上面板12以及支承机身部11的脚台13。在上面板12形成有洗涤物的投入口14。投入口14由能开闭的上盖15覆盖。
在箱体10内，上表面开口的外桶20由具有防振装置的四根吊棒21弹性地钩挂支承。外桶20大致具有有底圆筒状，包括底面部201和周面部202。
在外桶20内配置有上表面开口的洗涤脱水桶22。洗涤脱水桶22以沿着铅垂方向延伸的旋转轴为中心旋转。洗涤脱水桶22大致具有有底圆筒状，包括底面部221和周面部222。在洗涤脱水桶22的底面部221与外桶20的底面部201之间以及洗涤脱水桶22的周面部222与外桶20的周面部202之间，设有规定的间隙。
在洗涤脱水桶22的周面部222，遍及整周形成有许多脱水孔22a。在洗涤脱水桶22的上部设有平衡环23。在洗涤脱水桶22的底部以能旋转的方式配置有波轮24。在波轮24的表面呈辐射状设有多个叶片24a。
在外桶20的外底部配置有产生驱动洗涤脱水桶22和波轮24的转矩的驱动单元30。驱动单元30包括驱动马达31和传递机构部32。传递机构部32具有离合机构32a，通过该离合机构32a的切换操作，在清洗过程、蓄水漂洗过程以及注水漂洗过程中仅向波轮24传递驱动马达31的转矩而仅使波轮24旋转，在脱水过程和喷淋漂洗过程中向波轮24和洗涤脱水桶22传递驱动马达31的转矩而使波轮24和洗涤脱水桶22一体地旋转。驱动单元30相当于本发明的驱动部。
在外桶20的外底部形成有排水口部20a。在排水口部20a设有用于开闭该排水口部20a的排水阀40。排水阀40与排水软管41连接。当排水阀40打开时，蓄于洗涤脱水桶22和外桶20的水经过排水口部20a和排水软管41向机外排出。
在上面板12的后部配置有用于向洗涤脱水桶22内供给自来水的供水单元50。供水单元50具有供水阀51。供水阀51的进水口51a经由供水软管与水龙头连接。当打开供水阀51打开时，来自水龙头的自来水流过供水路52并从注水口53供给向洗涤脱水桶22内。注水口53大致朝向正下方，从注水口53放 出的水在洗涤脱水桶22的中心与周面部222之间的中间位置附近落下。注水口53可以具有沿着洗涤脱水桶22的周向延伸的宽幅的口。供水单元50相当于本发明的供水部。
图2是示出全自动洗衣机1的结构的框图。
全自动洗衣机1除了上述结构以外，还具备操作部61和水位传感器62。此外，全自动洗衣机1具备控制单元100。控制单元100包括：控制部101、存储部102、马达驱动部103、离合器驱动部104、供水驱动部105以及排水驱动部106。
操作部61包括用于接入和断开全自动洗衣机1的电源的电源按钮、用于开始、暂停运转的开始/暂停按钮、用于从洗涤运转的多个运转模式中选择任意的运转模式的模式选择按钮等各种操作按钮。操作部61将与用户所操作的操作按钮对应的输入信号输入至控制部101。
水位传感器62检测洗涤脱水桶22内即外桶20内的水位，并将与检测出的水位对应的水位信号输入至控制部101。在本实施方式中，水位传感器62能检测供水停止水位，该供水停止水位为在外桶20内低于洗涤脱水桶22的底面部221的位置的水位。供水停止水位被预先设定并用于喷淋漂洗过程中的控制。水位传感器62相当于本发明的水位检测部。
水位传感器62例如可以由膜片式压力传感器构成。在该情况下，压力传感器经由软管与设于外桶20的底部的空气阱连接，检测根据水位而变化的空气阱内的气压。以能对上述的供水停止水位进行检测的方式确定压力传感器的性能、空气阱的配置位置。
马达驱动部103根据从控制部101输出的控制信号来对驱动马达31进行驱动。马达驱动部1包括检测驱动马达31的转速的旋转传感器、逆变电路等，以使驱动马达31按照由控制部101设定的转速进行旋转的方式调整驱动电力。
离合器驱动部104根据从控制部101输出的控制信号来驱动传递机构部32的离合机构32a。供水驱动部105根据来自控制部101的控制信号来驱动供水阀51。排水驱动部106根据来自控制部101的控制信号来驱动排水阀40。
存储部102包括EEPROM(带电可擦可编程只读存储器)、RAM(随机存 取存储器)等。存储部102中存储有用于执行各种运转模式的洗涤运转的程序。此外，存储部102中存储有用于洗涤运转的各种运转条件。
控制部101包括CPU(中央处理器)等，根据存储于存储部102的程序来控制马达驱动部103、离合器驱动部104、供水驱动部105、排水驱动部106等。
全自动洗衣机1中在控制部101的控制下进行各种运转模式的洗涤运转。洗涤运转中依次执行清洗过程、中间脱水过程、漂洗过程以及最终脱水过程。
在清洗过程和漂洗过程中，在洗涤脱水桶22内蓄有含洗涤剂的水的状态下，波轮24进行正转和反转。通过波轮24的旋转，洗涤脱水桶22内产生水流，通过水流和洗涤剂来清洗洗涤物。
作为漂洗过程，根据运转模式或者根据用户的设定而选择性地执行蓄水漂洗过程、注水漂洗过程或喷淋漂洗过程。有时隔着中间脱水过程进行两次漂洗过程。在该情况下，喷淋漂洗过程作为最初的漂洗过程被执行的情况较多。
在蓄水漂洗过程和注水漂洗过程中，在洗涤脱水桶22内蓄有水的状态下波轮24进行正转和反转，洗涤脱水桶22内产生水流。通过产生的水流来漂洗洗涤物，洗涤物中所含的洗涤剂被排出至水中。在注水漂洗过程中，在波轮24旋转时也持续供水，含洗涤剂的水从设于外桶20的上部的未图示的溢水口排出。
在喷淋漂洗过程中，洗涤脱水桶22与波轮24一体地低速旋转并且洗涤脱水桶22内被进行供水。水淋在洗涤物上而被洗涤物吸收。此时，排水阀40关闭，未被洗涤物吸收的水蓄于外桶20的底部即低于洗涤脱水桶22的底面部221的部分。在之后进行的中间脱水过程中，洗涤物中所含的洗涤剂随水排出。需要说明的是，有时将喷淋漂洗过程和中间脱水过程并称为脱水漂洗过程。
在中间脱水过程和最终脱水过程中，洗涤脱水桶22和波轮24一体地以规定的脱水转速高速旋转。通过洗涤脱水桶22中产生的离心力的作用，洗涤物被脱水。
接着，对喷淋漂洗过程和该喷淋漂洗过程后续的中间脱水过程详细地进行说明。
图3的(a)是示出在喷淋漂洗过程中由控制部101执行的控制处理的流程图。图3的(b)是示出在喷淋漂洗过程后续的中间脱水过程中由控制部101执 行的控制处理的流程图。图4的(a)、(b)是用于说明喷淋漂洗过程的图。图4的(a)示出洗涤脱水桶22内容纳了大量洗涤物时的喷淋漂洗过程的情形，图4的(b)示出洗涤脱水桶22内容纳了少量洗涤物时的喷淋漂洗过程的情形。
参照图3的(a)，当喷淋漂洗过程开始时，控制部101关闭排水阀40(S101)。在喷淋漂洗过程之前进行的中间脱水过程中，为了从外桶20内进行排水而打开了排水阀40。
接着，控制部101启动驱动马达31，开始洗涤脱水桶22的低速旋转(S102)。此时，波轮24与洗涤脱水桶22一体地旋转。此时的洗涤脱水桶22的转速例如设为30rpm左右，低于洗涤脱水桶22和外桶20由于共振而在水平方向大幅振动的所谓的横向共振点的转速。
进而，控制部101打开供水阀51，开始向洗涤脱水桶22内进行供水(S103)。需要说明的是，可以是洗涤脱水桶22的旋转与供水同时开始，也可以是供水比洗涤脱水桶22的旋转先开始。
如图4的(a)、(b)所示，从注水口53放出的水淋下至通过洗涤脱水桶22的旋转而转到注水口53的正下方附近的洗涤物上，淋下的水被洗涤物吸收。未被洗涤物吸收的水、吸收后从洗涤物脱出的含洗涤剂的水从洗涤脱水桶22排出并蓄于外桶20的底部。由此，外桶20内的水位上升。
控制部101通过水位传感器62来检测外桶20内的水位，并监测该水位是否到达预先设定的供水停止水位(S104)。如图4的(a)、(b)所示，供水停止水位设定为比蓄于外桶20内的水与洗涤脱水桶22的底面部221接触的水位低的水位。
当外桶20内的水位到达供水停止水位时(S104：是)，控制部101关闭供水阀51来停止供水(S105)。然后，控制部101关闭排水阀40(S106)。由此，开始从外桶20内进行排水。如此，喷淋漂洗过程结束。
在如图4的(a)所示的洗涤脱水桶22内的洗涤物的量多的情况下，与图4的(b)所示的洗涤物的量少的情况相比，洗涤物所吸收的水的量变多，水难以向外桶20内排出，因此外桶20内的水位缓慢地上升。因此，洗涤物的量越多，外桶20内的水位到达供水停止水位为止的供水量越多。由此，无论洗涤物的量 的大小如何，都能使洗涤脱水桶22内的洗涤物整体充分地含水。
此外，即使供水流量不均，在洗涤物的量为相同程度的情况下，外桶20内的水位到达供水停止水位为止的供水量也为相同程度。由此，无论供水流量的大小如何，都能使洗涤脱水桶22内的洗涤物整体充分地含水。
进而，由于蓄于外桶20内的水与旋转的洗涤脱水桶22的底面部221不接触，因此会避免由于与水接触而导致洗涤脱水桶22的旋转负荷增大。
当喷淋漂洗过程结束时，中间脱水过程开始。
参照图3的(b)，控制部101监测喷淋漂洗过程的结束，即从打开排水阀40起是否经过了预先设定的等待时间(S201)。等待时间例如设定为几秒左右的时间。经过等待时间的期间，外桶20内的水位逐渐降低。
当经过等待时间时(S201：是)，控制部101使驱动马达31的转速上升，使洗涤脱水桶22的转速向预先设定的脱水转速(例如800rpm)上升(S202)。可以在转速上升的过程中适当设置转速维持固定的定速期间。
当洗涤脱水桶22的转速上升时，容易从洗涤物中排出所含的水。由此，在来自洗涤物的排水量多的情况下，该排水量会暂时超过来自外桶20的排水量，外桶20内的水位会暂时上升。在本实施方式中，供水停止水位设定为比洗涤脱水桶22的底面部221的位置低的水位。因此，即使等待时间设定得短，洗涤脱水桶22的转速开始上升时的外桶20内的水位也远低于洗涤脱水桶22的底面部221，当发生外桶20内的暂时性的水位上升时，水不易与旋转的洗涤脱水桶22的底面部221接触，因此，不易由于与水接触而导致洗涤脱水桶22的旋转负荷增大，或者因水面起伏等而产生较大的声音。由此，由于能将等待时间设定得短，因此能在喷淋漂洗过程结束后尽快使洗涤脱水桶22的转速开始上升来开始洗涤物的脱水。而且，由于仍然设定了等待时间，因此无需为了避免水与洗涤脱水桶22接触而使供水停止水位过低。因此，能避免水位传感器62难以检测到水位到达供水停止水位。
当洗涤脱水桶22的转速达到脱水转速时(S203：是)，控制部101维持该脱水转速(S204)。然后，当经过预先设定的脱水时间时(S205：是)，控制部101使驱动马达31停止而使洗涤脱水桶22的旋转停止(S206)。如此，中间脱 水过程结束。
通过在中间脱水过程中对洗涤物进行脱水，洗涤剂随着在喷淋漂洗过程中吸收的水从洗涤物中排出，洗涤物被漂洗。需要说明的是，在喷淋漂洗过程中，还通过使水不断从上方淋下而使含洗涤剂的水从洗涤物脱离来使洗涤物被漂洗。
＜实施方式的效果＞
以上，根据本实施方式，在喷淋漂洗过程中，在排水阀40关闭的状态下进行供水单元50的供水，并基于外桶20内的水位到达预先设定的供水停止水位来使供水停止。由此，能使洗涤物的量越多则供水量越多，此外，即使供水流量不均也能确保固定的供水量。由此，无论洗涤物的量、供水流量的大小如何，都能使洗涤脱水桶22内的洗涤物充分地含水，能充分地确保漂洗性能。
进而，根据本实施方式，供水停止水位设定为比蓄于外桶20内的水与洗涤脱水桶22的底面部221接触的水位低的水位，因此在喷淋漂洗过程中蓄于外桶20内的水不易与旋转的洗涤脱水桶22的底面部221接触。由此，能防止由于与水接触而导致洗涤脱水桶22的旋转负荷增大。
进而，根据本实施方式，在外桶20内从低于洗涤脱水桶22的底面部221的位置的供水停止水位开始排水，因此，即使从喷淋漂洗过程结束起至洗涤脱水桶22的转速开始上升为止的等待时间设定得短，洗涤脱水桶22的转速开始上升时的外桶20内的水位也远低于洗涤脱水桶22的底面部221。由此，即使发生外桶20内的暂时性的水位上升，水也不易与旋转的洗涤脱水桶22的底面部221接触。由此，由于能将等待时间设定得短，因此能够在喷淋漂洗过程结束后尽快使洗涤脱水桶22的转速开始上升来开始洗涤物的脱水。
而且，由于仍然设定了等待时间，因此无需使供水停止水位过低。因此，能避免水位传感器62难以检测到水位到达供水停止水位。
进而，根据上述实施方式，在喷淋漂洗过程后续的中间脱水过程中，设为使洗涤脱水桶22的转速从喷淋漂洗过程中的转速上升，因此能够更早开始洗涤物的脱水。
以上，对本发明的实施方式进行了说明，但本发明不受上述实施方式的任 何限制，此外，本发明的实施方式也可以在上述内容以外进行各种变更。
例如，在上述实施方式中，供水停止水位设定为比蓄于外桶20内的水与洗涤脱水桶22的底面部221接触的水位低的水位。然而，也可以是，供水停止水位设定为蓄于外桶20内的水与洗涤脱水桶22的底面部221接触的水位以上的水位。
进而，在上述实施方式中，水位传感器62采用例如通过检测水压的变化来检测水位的结构。然而，也可以将其他结构的水位传感器用于检测外桶20内的水位。例如，可以在外桶20的底部配置由一对电极构成的水位传感器。在该情况下，当外桶20内的水位到达供水停止水位时，一对电极通过介于它们之间的水而成为通电状态，从水位传感器向控制部101输出表示到达供水停止水位的检测信号。
进而，在上述实施方式中，从喷淋漂洗过程结束起经过了等待时间后使洗涤脱水桶22的转速开始上升。然而，也可以是，不设定等待时间，设为在喷淋漂洗过程结束后立即使洗涤脱水桶22的转速开始上升。
进而，在上述实施方式中，即使喷淋漂洗过程结束，洗涤脱水桶22也持续旋转。然而，也可以是，当喷淋漂洗过程结束时，洗涤脱水桶22停止旋转。在该情况下，在中间脱水过程中，洗涤脱水桶22从停止状态起开始旋转，其转速上升。
进而，在上述实施方式中，供水单元50不具备预先容纳洗涤剂的洗涤剂容器。然而，也可以是，供水单元50具备洗涤剂容器。在该情况下，从洗涤剂容器流出的水流向注水口53。
进而，在上述实施方式中，示出了将本发明应用于全自动洗衣机1的例子。然而，也可以是，将本发明应用于搭载有衣物烘干功能的全自动洗干一体机。
此外，本发明的实施方式能在技术方案所示的技术思想的范围内适当地进行各种变更。

Claims (3)

  1. 一种洗衣机，其特征在于，具备：
    外桶；弹性地支承于箱体内；
    洗涤脱水桶，能旋转地配置于所述外桶内；
    驱动部，驱动所述洗涤脱水桶；
    供水部，从所述洗涤脱水桶的上方向所述洗涤脱水桶内进行供水；
    排水阀，用于对设于所述外桶的底部的排水口部进行开闭；
    水位检测部，检测所述外桶内的水位；以及
    控制部，执行通过所述驱动部来使所述洗涤脱水桶旋转并且通过所述供水部来进行供水的喷淋漂洗过程，
    在所述喷淋漂洗过程中，所述控制部在所述排水阀关闭的状态下进行所述供水部的供水，并且基于所述外桶内的水位到达预先设定的供水停止水位来使所述供水部的供水停止。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    所述供水停止水位设定为比蓄于所述外桶内的水与所述洗涤脱水桶的底面部接触的水位低的水位。
  3. 根据权利要求2所述的洗衣机，其特征在于，
    在所述喷淋漂洗过程后续的脱水过程中，所述控制部在从所述喷淋漂洗过程结束起经过了预先设定的等待时间后，使从所述喷淋漂洗过程起持续旋转的所述洗涤脱水桶的转速开始上升。
PCT/CN2022/136734 2021-12-09 2022-12-06 洗衣机 WO2023103998A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07163779A (ja) * 1993-12-15 1995-06-27 Matsushita Electric Ind Co Ltd 全自動洗濯機
US5758377A (en) * 1995-12-06 1998-06-02 Electrolux Zanussi Elettrodomestici S.P.A. Clothes washing machine with rinsing cycles using small amounts of water
CN1366106A (zh) * 2001-01-19 2002-08-28 杭州松下家用电器有限公司 洗衣机的漂洗方法
CN1422345A (zh) * 2000-02-11 2003-06-04 戴森有限公司 一种操作家用设备的方法
CN1690295A (zh) * 2004-04-20 2005-11-02 日立家用电器公司 洗衣机
JP2011015714A (ja) * 2009-07-07 2011-01-27 Hitachi Appliances Inc 洗濯機
CN106795679A (zh) * 2014-12-02 2017-05-31 夏普株式会社 洗衣机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07163779A (ja) * 1993-12-15 1995-06-27 Matsushita Electric Ind Co Ltd 全自動洗濯機
US5758377A (en) * 1995-12-06 1998-06-02 Electrolux Zanussi Elettrodomestici S.P.A. Clothes washing machine with rinsing cycles using small amounts of water
CN1422345A (zh) * 2000-02-11 2003-06-04 戴森有限公司 一种操作家用设备的方法
CN1366106A (zh) * 2001-01-19 2002-08-28 杭州松下家用电器有限公司 洗衣机的漂洗方法
CN1690295A (zh) * 2004-04-20 2005-11-02 日立家用电器公司 洗衣机
JP2011015714A (ja) * 2009-07-07 2011-01-27 Hitachi Appliances Inc 洗濯機
CN106795679A (zh) * 2014-12-02 2017-05-31 夏普株式会社 洗衣机

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