WO2020215889A1 - 滚筒洗衣机 - Google Patents

滚筒洗衣机 Download PDF

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Publication number
WO2020215889A1
WO2020215889A1 PCT/CN2020/076979 CN2020076979W WO2020215889A1 WO 2020215889 A1 WO2020215889 A1 WO 2020215889A1 CN 2020076979 W CN2020076979 W CN 2020076979W WO 2020215889 A1 WO2020215889 A1 WO 2020215889A1
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WO
WIPO (PCT)
Prior art keywords
steam
drum
water
detergent
nozzle
Prior art date
Application number
PCT/CN2020/076979
Other languages
English (en)
French (fr)
Inventor
铃木肇
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
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 CN202080028914.2A priority Critical patent/CN113748239B/zh
Publication of WO2020215889A1 publication Critical patent/WO2020215889A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/12—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid solely by gases, e.g. air or steam, introduced into the washing liquid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the invention relates to a drum washing machine.
  • the drum washing machine can either continuously wash to dry, or wash but not dry.
  • the horizontal axis drum rotates in an outer drum that stores water to a predetermined water level, and the laundry is rolled by the lifting ribs provided in the drum and slapped onto the inner peripheral surface of the drum. washing. At this time, the water stored in the outer cylinder penetrates the interior of the laundry, and the entire interior is wetted.
  • Patent Document 1 describes a drum washing machine in which steam generated by a steam generator is sprayed into the drum so that the laundry is quickly wetted.
  • the drum washing machine of Patent Document 1 includes a steam generator.
  • the spray of steam is used to quickly wet the laundry, and the pressure of the steam generated by the steam generator is lower than the atmospheric pressure. Therefore, the sprayed steam has weak power to hit the clothes, and it is difficult to impart mechanical force to the clothes. Therefore, in the above-mentioned drum washing machine, it is difficult for the sprayed steam to exert a cleaning power to remove dirt adhering to or near the surface of the laundry.
  • Patent Document 1 Japanese Patent Application Publication No. 2004-298614
  • the present invention was made in view of such problems, and its object is to provide a drum washing machine that can perform washing using steam well.
  • the drum washing machine includes: an outer tub arranged in the box; the drum is arranged in the outer tub and can rotate around a horizontal axis or a rotation axis inclined with respect to the horizontal; and a steam nozzle facing the The interior of the drum sprays high-pressure steam; a steam supply part, which supplies high-pressure steam to the steam nozzle; a detergent nozzle, which sprays detergent liquid into the interior of the drum; a detergent supply part, which supplies the detergent liquid to the detergent nozzle ; A water spray nozzle, spraying water to the inside of the drum; and a water supply unit, providing water to the water spray nozzle.
  • the detergent liquid is sprayed from the detergent nozzle to the inside of the drum, the surface of the laundry in the drum and the vicinity of the surface can contain the detergent. Thereby, by the action of the detergent activated by the heat of the steam, the dirt on the clothes can be better peeled off.
  • the surface of the laundry in the drum and the vicinity of the surface can contain water.
  • the detergent liquid can be easily diffused with water to spread widely to the clothes, and the dirt peeled from the clothes can be easily washed away by the water to remove the dirt from the clothes.
  • the drum has an opening
  • the outer drum has an opening in front of the opening of the drum, and is arranged above the peripheral edge of the opening of the outer drum
  • the steam nozzle, the detergent nozzle, and the water spray nozzle are arranged, and high-pressure steam, detergent liquid, and water are respectively sprayed from the opening of the drum into the interior of the drum.
  • the following structure may be adopted: it is further provided with a hollow lifting rib provided on the inner peripheral surface of the drum and extending along the axial direction of the drum, and an end surface of the lifting rib is provided with At least a part of the high-pressure steam ejected from the steam nozzle is taken into the intake port, and on the side of the lifting rib, there are provided a plurality of for releasing the steam taken into the inside from the intake port Let out the hole.
  • the steam can be brought into contact with the surface of the laundry on the inner side of the drum through the lifting ribs, and the steam can be used to adhere to the surface of the laundry and the vicinity of the surface. Removal of dirt.
  • Fig. 1 is a side sectional view showing the structure of a drum washing machine according to an embodiment.
  • Fig. 2(a) is a front cross-sectional view of the main part showing the arrangement structure of the steam nozzle, the water spray nozzle, and the detergent nozzle in the outer cylinder of the embodiment.
  • Fig. 2(b) is a cross-sectional view showing the structure of the steam nozzle of the embodiment
  • Fig. 2(c) is a cross-sectional view showing the structure of the water spray nozzle and the detergent nozzle of the embodiment.
  • Fig. 3 is a block diagram showing the structure of the drum washing machine of the embodiment.
  • Fig. 4 is a flowchart showing a control process of a washing operation in a steam washing mode according to the embodiment.
  • FIG. 5 respectively show a flowchart of the control process of the steam washing process and the steam rinsing process included in the washing operation in the steam washing mode of the embodiment.
  • Fig. 6(a) is a cross-sectional view of the main part of the outer cylinder and the drum at the position of the steam nozzle of the modification 1
  • Fig. 6(b) and (c) are the front views of the lifting ribs of the modification 1, respectively And front sectional view.
  • FIG. 7 is a diagram showing the structure of a detergent supply unit according to Modification 2.
  • drum washing machine without a drying function as an embodiment of the drum washing machine of the present invention will be described.
  • FIG. 1 is a side sectional view showing the structure of the drum washing machine 1.
  • FIG. 2(a) is a front cross-sectional view of the main part showing the arrangement structure of the steam nozzle 51, the water spray nozzle 52, and the detergent nozzle 53 of the outer cylinder 20.
  • FIG. FIG. 2( b) is a cross-sectional view showing the structure of the steam nozzle 51
  • FIG. 2( c) is a cross-sectional view showing the structure of the water spray nozzle 52 and the detergent nozzle 53.
  • the drum washing machine 1 includes a rectangular box 10. On the front surface of the box body 10, a circular inlet 11 into which laundry is placed is formed in the center. The casting entrance 11 is covered by a door 12 that can be opened and closed freely.
  • the outer cylinder 20 is elastically supported by a plurality of dampers 21 and springs 22.
  • a roller 23 is rotatably arranged in the outer cylinder 20.
  • the drum 23 rotates around a horizontal axis.
  • the drum 23 has a circular opening 23 a on the front surface, and the outer tube 20 has a circular opening 20 a in front of the opening 23 a of the drum 23.
  • the opening 20 a of the outer cylinder 20 faces the input port 11 and is closed by the door 12 together with the input port 11.
  • the peripheral edge portion 20b of the opening 20a of the outer tube 20 and the peripheral edge portion 11a of the input port 11 of the box body 10 are connected by a ring-shaped gasket 24 made of an elastic material.
  • dehydration holes 23b are formed on the inner peripheral surface of the drum 23.
  • annular balancer 25 is provided on the inner peripheral surface of the drum 23, and three lifting ribs 26 are provided at equal intervals in the circumferential direction.
  • Each lifting rib 26 has an approximate triangular prism shape, extends along the axial direction of the drum 23, and is hollow inside.
  • a drive motor 30 that generates torque for driving the drum 23 is arranged behind the outer cylinder 20.
  • the drive motor 30 is, for example, an outer rotor type DC brushless motor.
  • the motor 30 is driven to rotate the drum 23 so that the centrifugal force applied to the laundry in the drum 23 is smaller than gravity.
  • the motor 30 is driven to rotate the drum 23 so that the centrifugal force applied to the laundry in the drum 23 is far greater than the speed of gravity.
  • a drain port 20c is formed at the bottom of the outer tube 20.
  • a drain valve 40 is provided in the drain port 20c.
  • the drain valve 40 is connected to a drain hose 41. When the drain valve 40 is opened, the water stored in the outer cylinder 20 is drained out of the machine through the drain hose 41.
  • a steam nozzle 51, a water spray nozzle 52, and a detergent nozzle 53 are arranged side by side on the upper portion of the peripheral edge portion 20b of the opening portion 20a.
  • the detergent nozzle 53 is arranged at the highest position of the peripheral edge portion 20 b
  • the water spray nozzle 52 is arranged on the left side of the detergent nozzle 53
  • the steam nozzle 51 is arranged on the left side of the water spray nozzle 52.
  • the steam nozzle 51, the water spray nozzle 52, and the detergent nozzle 53 spray high-pressure steam, water, and detergent liquid into the drum 23, respectively.
  • the steam nozzle 51 is composed of an elongated cylindrical tube body 100 whose middle part is bent at an obtuse angle.
  • the tube body 100 has a bending angle of about 120 degrees, and an inner diameter of about 6 mm, for example.
  • the opening at the base end of the tube body 100 is an inflow port 100a, and the opening at the tip end of the tube body 100 is an ejection port 100b.
  • the water spray nozzle 52 and the detergent nozzle 53 have the same structure. As shown in (c) of FIG. 2, the water spray nozzle 52 and the detergent nozzle 53 are composed of a pipe body 100 that is the same as the steam nozzle 51 and a nozzle body 110 attached to an opening at the top end of the pipe body 100.
  • the nozzle body 110 sprays the liquid in a mist form from the spray port 111 in a circular spray pattern and forms a uniform flow distribution, that is, sprays.
  • the inner diameter of the nozzle body 110 is set to about 1 mm, for example.
  • the base ends of the steam nozzle 51, the water spray nozzle 52, and the detergent nozzle 53 are located outside the outer cylinder 20, and the distal end side penetrates the peripheral portion 20b and faces the center of the opening 20a. The way protrudes to the inside of the outer tube 20.
  • the spray ports 100 b and 111 of the steam nozzle 51, the water spray nozzle 52, and the detergent nozzle 53 face the vicinity of the center of the drum 23.
  • the housing 10 is provided with a steam supply unit 60 that supplies high-temperature and high-pressure steam to the steam nozzle 51, a water supply unit 70 that supplies water to the water spray nozzle 52, and a detergent supply unit 80 that supplies detergent liquid to the detergent nozzle 53.
  • the steam supply unit 60 includes a steam generator 61 that generates high-temperature and high-pressure steam, a steam supply pipe 62 that guides the steam generated by the steam generator 61 to the steam nozzle 51, and a water supply pipe 63 for supplying water to the steam generator 61 and a first Water supply valve 64.
  • the steam generating device 61 includes a steam tank 65, a heater 66 arranged in a boiler tank 65, and a supply valve 67 that opens and closes a steam outlet 65 a provided in the steam tank 65.
  • One end of the steam supply pipe 62 is connected to the supply valve 67, and the other end is connected to the inflow port 100 a of the steam nozzle 51.
  • the first water supply valve 64 has a water supply port S1 common to the second and third water supply valves described later.
  • a water supply hose extending from the faucet is connected to the water supply port S1.
  • the first water supply valve 64 When the first water supply valve 64 is opened, water from the faucet is supplied to the steam tank 65 through the water supply pipe 63, and the water is stored in the steam tank 65. When a predetermined amount of water is stored in the steam tank 65, the first water supply valve 64 is closed. The heater 66 operates, and the water in the steam tank 65 is heated by the heater 66. The water boils to generate steam in the steam box 65. At this time, the supply valve 67 is closed, and the steam pressure in the steam tank 65 increases with the generation of steam. In this way, high-temperature and high-pressure steam is generated in the steam box 65.
  • the supply valve 67 When the supply valve 67 is opened, high-pressure steam is discharged from the steam outlet 65a.
  • the maximum discharge pressure is set to, for example, about 0.4 MPa.
  • the steam discharged from the steam outlet 65a reaches the steam nozzle 51 through the steam supply pipe 62, and is sprayed into the drum 23 from the spray port 100b of the steam nozzle 51 through the opening 23a.
  • the high-temperature and high-pressure steam sprayed from the steam nozzle 51 spreads toward the vicinity of the center of the drum 23.
  • the steam supply pipe 62 is covered with a heat insulating material (not shown), and the steam sent to the steam nozzle 51 easily maintains a high temperature state.
  • the water supply unit 70 includes a water supply pipe 71 and a second water supply valve 72. One end of the water supply pipe 71 is connected to the second water supply valve 72, and the other end is connected to the inflow port 100a of the water spray nozzle 52.
  • the water from the faucet passes through the water supply pipe 71 to the water spray nozzle 52, and sprays into the drum 23 from the spray port 111 of the nozzle body 110 of the water spray nozzle 52 through the opening 23a.
  • the water sprayed from the water spray nozzle 52 travels to the vicinity of the center of the drum 23 while spreading.
  • the detergent supply unit 80 includes a detergent box 81 that generates and stores detergent liquid, a detergent liquid supply pipe 82 and a supply pump 83 for guiding the detergent liquid in the detergent box 81 to the detergent nozzle 53, and a The water supply pipe 84 for supplying water to the detergent box 81 and the third water supply valve 85.
  • One end of the detergent liquid supply pipe 82 is connected to the drain port 81 a provided in the detergent box 81, and the other end is connected to the inflow port 100 a of the detergent nozzle 53.
  • the supply pump 83 is provided in the middle of the detergent liquid supply pipe 82.
  • One end of the water supply pipe 84 is connected to the water supply port 81 b provided in the detergent box 81, and the other end is connected to the third water supply valve 85.
  • the powder or liquid detergent is put into the detergent box 81 from an input port (not shown) provided on the top surface of the detergent box 81.
  • a predetermined amount of water is supplied into the detergent box 81 through the water supply pipe 84.
  • Water and detergent are mixed in the detergent box 81 to generate detergent liquid.
  • the supply pump 83 operates, the detergent liquid in the detergent box 81 is sent to the detergent nozzle 53 through the detergent liquid supply pipe 82.
  • the detergent liquid reaching the detergent nozzle 53 is sprayed into the drum 23 from the spray port 111 of the nozzle body 110 of the detergent nozzle 53 through the opening portion 23 a. As shown in (a) of FIG. 2, the detergent liquid sprayed from the detergent nozzle 53 travels to the vicinity of the center of the drum 23 while spreading.
  • FIG. 3 is a block diagram showing the structure of the drum washing machine 1.
  • the drum washing machine 1 further includes a control unit 201, a storage unit 202, an operation unit 203, a water level sensor 204, a temperature sensor 205, a motor drive unit 206, a water supply drive unit 207, a drain drive unit 208, and a heater
  • the operation unit 203 includes a power button 203a, a start button 203b, and a mode selection button 203c.
  • the power button 203a is a button for turning on and off the power of the drum washing machine 1.
  • the start button 203b is a button for starting the operation.
  • the mode selection button 203c is a button for selecting an arbitrary washing mode from a plurality of washing modes in the washing operation.
  • the operation unit 203 outputs an input signal corresponding to the button operated by the user to the control unit 201.
  • the water level sensor 204 detects the water level in the outer cylinder 20 and outputs a water level signal corresponding to the detected water level to the control unit 201.
  • the temperature sensor 205 detects the temperature in the outer cylinder 20, and outputs a temperature signal corresponding to the detected temperature to the control unit 201.
  • the motor drive unit 206 drives the drive motor 30 based on the control signal from the control unit 201.
  • the motor drive unit 206 includes a rotation sensor that detects the rotation speed of the drive motor 30, an inverter circuit, etc., and adjusts the drive power so that the drive motor 30 rotates at the rotation speed set by the control unit 201.
  • the water supply driving unit 207 drives the first water supply valve 64, the second water supply valve 72, and the third water supply valve 85 in accordance with a control signal from the control unit 201.
  • the drain driving unit 208 drives the drain valve 40 based on a control signal from the control unit 201.
  • the heater driving unit 209 drives the heater 66 based on the control signal from the control unit 201.
  • the valve driving unit 210 drives the supply valve 67 based on a control signal from the control unit 201.
  • the pump driving unit 211 drives the supply pump 83 based on a control signal from the control unit 201.
  • the storage unit 202 includes EEPROM, RAM, and the like.
  • the storage unit 202 stores programs for executing washing operations in various washing modes.
  • the storage unit 202 stores various parameters and various control flags for executing these programs.
  • the control unit 201 responds to the motor drive unit 206, the water supply drive unit 207, the drain drive unit 208, and the heater drive unit based on various signals from the operation unit 203, the water level sensor 204, the temperature sensor 205, etc., according to the program stored in the storage unit 202. 209, the valve drive unit 210, the pump drive unit 211, etc. perform control. As a result, during the washing operation in the steam washing mode described later, the control unit 201 controls the operations of the steam supply unit 60, the water supply unit 70, the detergent supply unit 80, and the drive motor 30.
  • the drum washing machine 1 performs washing operations in various washing modes based on the operation of the operation unit 203 by the user.
  • the washing mode includes the standard washing mode.
  • the standard washing mode during the washing process, water containing detergent is accumulated in the outer tub 20 to a predetermined water level corresponding to the load of the laundry in the drum 23, and the laundry immersed in the water is repeatedly rotated in the drum 23. And anti-rotating while rolling.
  • the water containing detergent penetrates into the inside of the clothes, and the dirt attached to the surface and inside of the clothes is removed by the force of the detergent and the mechanical force generated by the tumbling.
  • an intermediate dehydration process, a rinsing process and a final dehydration process are performed at one time.
  • the drum 23 also rotates forwards and backwards in a state where the water is stored in the outer tub 20 to a predetermined water level, so that the clothes are tumbled.
  • the washing mode also includes a steam washing mode.
  • the steam washing mode is the following washing mode: in a manner that does not store water in the outer tub 20 to a predetermined water level, steam is used for clothes that do not want the entire interior to be wet, or clothes with dirt attached to the surface or near the surface. washing.
  • FIG. 4 is a flowchart showing a control process of a washing operation in a steam washing mode.
  • (A) and (b) of FIG. 5 respectively show a flowchart of a steam cleaning process and a control process of the steam rinsing process included in the washing operation in the steam washing mode.
  • the start button 203b When the start button 203b is pressed after the steam washing mode is selected by the mode selection button 203c, the washing operation in the steam washing mode starts. It should be noted that before the start of the washing operation, clothes such as down jackets are put into the drum 23, and detergent is put into the detergent box 81.
  • the control unit 201 when the washing operation starts, the control unit 201 first performs a preparation process (S1). That is, the control unit 201 controls the first water supply valve 64 and the heater 66 of the steam supply unit 60 to generate high temperature and high pressure steam in the steam tank 65. In addition, the control unit 201 controls the third water supply valve 85 of the detergent supply unit 80 to generate detergent liquid in the detergent box 81. When the generation of high-pressure steam and detergent liquid is completed, the preparation process ends.
  • the generation of steam in the steam generating device 61 realized by the control of the first water supply valve 64 and the heater 66 continues until the steam rinsing process ends and the process moves to the final dehydration process. That is, when the amount of steam in the steam tank 65 decreases, the heater 66 operates, and when the water in the steam tank 65 decreases, the first water supply valve 64 is opened.
  • control unit 201 performs a steam cleaning process (S2).
  • the control unit 201 first performs a detergent liquid spraying process (S101). That is, the control unit 201 operates the supply pump 83 of the detergent supply unit 80. As a result, the detergent liquid is supplied to the detergent nozzle 53, and the detergent liquid is sprayed into the drum 23 from the detergent nozzle 53.
  • the spray amount of the detergent liquid is set to, for example, 0.5 L/min.
  • the control unit 201 rotates the drive motor 30 alternately in the forward direction and the reverse direction with a stop. The drum 23 repeats forward and reverse rotation with stopping, and the laundry in the drum 23 is stirred.
  • the rotation speed of the drum 23 is set to, for example, 30 rpm, which is lower than the rotation speed of the drum 23 in the cleaning process of the standard washing mode. Therefore, the laundry is gently stirred.
  • the sprayed detergent liquid touches the surface of the clothes without dead ends, and the detergent liquid spreads over the surface and most of the vicinity of the surface.
  • the detergent liquid spraying process is performed for a predetermined detergent supply time, for example, 1 minute.
  • the control unit 201 stops the supply pump 83.
  • the control unit 201 performs a water spray process (S102). That is, the control unit 201 opens the second water supply valve 72 of the water supply unit 70. Thus, water is supplied to the water spray nozzle 52, and the water is sprayed from the water spray nozzle 52 into the drum 23.
  • the spray amount of water is set to, for example, 1 L/min.
  • the stirring of the laundry achieved by the forward and reverse rotation of the drum 23 is continued.
  • the sprayed water touches the surface of the clothes without dead ends, the detergent liquid contained in the clothes is diffused by the water, and the detergent liquid spreads over the surface of the clothes and the vicinity of the surface.
  • the water spraying process is performed for the first water supply time set in advance, for example, 5 seconds.
  • the control part 201 closes the second water supply valve 72.
  • the control unit 201 performs a steam injection process (S103). That is, the control unit 201 opens the supply valve 67 of the steam supply unit 60. As a result, the high-temperature and high-pressure steam is supplied to the steam nozzle 51, and the high-temperature and high-pressure steam is injected into the drum 23 from the steam nozzle 51.
  • the injection amount of steam is set to, for example, about 80 g/min.
  • the stirring of the laundry achieved by the forward and reverse rotation of the drum 23 is continued.
  • the steam is blown strongly and without blind spots on the surface of the clothes.
  • the force generated by the heat and moisture of the steam to remove dirt, and the mechanical force generated by the blowing of the steam peel off the dirt attached to the surface of the clothes and near the surface.
  • the temperature of the detergent liquid contained in the clothes rises by the heat of the steam to activate the detergent, and the action of the activated detergent promotes the peeling of dirt.
  • the steam injection process is performed for a preset steam supply time, for example, 2 minutes.
  • the control unit 201 closes the supply valve 67.
  • the control unit 201 performs a water spray process for the second water supply time, which is longer than the first water supply time, for example, 1 minute (S104).
  • the water sprayed from the water spray nozzle 52 touches the surface of the clothes without dead ends, and the dirt peeled from the clothes is washed away by the touched water and leaves the clothes. As a result, it is difficult for dirt to adhere to the clothes again.
  • the clothes are stirred, the clothes are pressed against the inner peripheral surface of the drum 23. Therefore, the pressure washing effect makes it easy to drain water containing dirt from the clothes, and the decontamination effect of the clothes is improved. Furthermore, since the clothes are cooled by the sprayed water, the temperature of the clothes does not easily rise excessively, and damage to the clothes caused by heat can be prevented.
  • control unit 201 repeats the steam injection process of S103 and the water injection process of S104 for the first number of times, for example, three times. In this way, by repeating the steam injection process and the water injection process, the time for each steam injection process can be shortened. Therefore, during the steam spraying process, the temperature of the clothes is not easy to rise excessively, which can prevent the clothes from being damaged by the heat.
  • the control part 201 performs the stirring process (S106). That is, the control unit 201 continues the forward and reverse rotation of the drum 23 for a predetermined stirring time, for example, 1 minute, and the pressure washing effect discharges more water containing dirt from the clothes. Then, when the stirring process ends, the control part 201 stops the drive motor 30 to stop the drum 23.
  • control unit 201 performs a drainage process (S107). That is, the control unit 201 opens the drain valve 40. As a result, water is drained from the outer cylinder 20. When the drain process ends, the control part 201 ends the steam cleaning process while keeping the drain valve 40 open.
  • control part 201 when the steam cleaning process ends, the control part 201 performs an intermediate dehydration process (S3). That is, the control unit 201 drives the drive motor 30 to rotate the drum 23 at a high speed in one direction at a predetermined spin speed. The laundry is pressed against the inner peripheral surface of the drum 23 by centrifugal force, thereby being dehydrated.
  • S3 intermediate dehydration process
  • the dehydration speed during the intermediate dehydration in the steam washing mode is set to, for example, 400 rpm, which is lower than the dehydration speed during the intermediate dehydration in the standard washing mode. Therefore, even if the laundry is delicate clothes, it is not easy to damage the cloth.
  • the moisture contained in the clothes is less than that in the standard washing mode, so even if the dehydration rotation speed is low, the dehydration can be performed appropriately.
  • the control unit 201 After reaching the spin speed, when a predetermined spin time, for example, 1 minute, has passed, the control unit 201 stops the drive motor 30 and stops the drum 23. Furthermore, the control unit 201 closes the drain valve 40. In this way, the intermediate dehydration process ends.
  • a predetermined spin time for example, 1 minute
  • control unit 201 performs a steam rinsing process (S4).
  • the control unit 201 first performs the water spray process for a third water supply time, which is longer than the second water supply time, for example, 2 minutes (S201).
  • the water sprayed from the water spray nozzle 52 touches the surface of the clothes without dead ends, and the detergent contained in the clothes is washed away by the touched water and removed from the clothes.
  • the laundry is stirred, the laundry is pressed against the inner peripheral surface of the drum 23, so the water containing the detergent becomes easy to drain from the laundry, and the rinsing effect of the laundry is improved.
  • control unit 201 causes the steam injection process to perform the steam supply time (S202).
  • the heat of the steam increases the temperature of the clothes, so that the detergent remaining in the clothes becomes easy to dissolve in the water and is easily removed with the water.
  • control unit 201 repeats the water spray process of S201 and the steam spray process of S202 for a second number of times, for example, twice, and when the above process ends (S203: Yes), performs a drain process (S204).
  • S204 When the draining process ends, the steam rinsing process ends.
  • control unit 201 repeats the intermediate dehydration process of S3 and the steam rinsing process of S4 twice, and when the above process ends (S5: Yes), the final dehydration process (S6) is performed.
  • dehydration takes longer than the intermediate dehydration process.
  • the dehydration speed in the final dehydration process may be the same as the dehydration speed of the intermediate dehydration process, or may be higher than the dehydration speed of the intermediate dehydration process.
  • the steam can be blown strongly to the laundry in the drum 23.
  • the clothes in the drum 23 be imparted with the force of the heat and moisture of the steam to remove dirt, but also can be imparted with the mechanical force generated by the blowing of the steam. Therefore, the surface of the clothes can be peeled off well. Dirt near the surface.
  • the detergent liquid is sprayed from the detergent nozzle 53 to the inside of the drum 23, the surface of the laundry in the drum 23 and the vicinity of the surface can contain detergent. Thereby, by the action of the detergent activated by the heat of the steam, the dirt on the clothes can be better peeled off.
  • the surface of the laundry in the drum 23 and the vicinity of the surface can contain water.
  • the detergent liquid can be easily dispersed with water to spread widely to the clothes, and dirt peeled off from the clothes can be easily washed away by the water to remove the dirt from the clothes.
  • washing using steam can be performed satisfactorily.
  • the steam nozzle 51, the detergent nozzle 53, and the water spray nozzle 52 are arranged side by side on the upper portion of the peripheral portion 20b of the opening 20a of the outer cylinder 20.
  • the steam nozzle 51, the detergent nozzle 53, and the water spray nozzle 52 are arranged side by side on the upper portion of the peripheral portion 20b of the opening 20a of the outer cylinder 20.
  • Fig. 6 (a) is a cross-sectional view of the main part of the outer cylinder 20 and the drum 23 at the position of the steam nozzle 51 of the modification 1
  • Fig. 6 (b) and (c) are the lifting ribs of the modification 1, respectively Front view and front cross-sectional view of 300.
  • each lifting rib 300 On the inner peripheral surface of the drum 23, three lifting ribs 300 extending in the axial direction of the drum 23 and having a hollow inside are provided with equal intervals. On the front end surface 300a of each lifting rib 300, a circular intake port 301 connected to the inside of the lifting rib 300 is formed. In addition, on the side surface 300b of each lifting rib 300, a plurality of circular discharge holes 302 are formed throughout.
  • FIG. 7 is a diagram showing the structure of a detergent supply unit 80 according to Modification 2.
  • FIG. 7 is a diagram showing the structure of a detergent supply unit 80 according to Modification 2.
  • the detergent supply unit 80 includes a switching valve 86 and a circulation pipe 87.
  • the switching valve 86 is provided downstream of the supply pump 83 in the detergent liquid supply pipe 82.
  • One end of the circulation pipe 87 is connected to the switching valve 86, and the other end is connected to a return port 81c provided on the top surface of the detergent box 81.
  • the switching valve 86 switches the detergent liquid discharged from the supply pump 83 into a first state flowing to the detergent nozzle 53 and a second state flowing to the circulation pipe 87 side.
  • the switching valve 86 is switched by the control unit 201.
  • the switching valve 86 When the detergent is put into the detergent box 81 and water is stored, first, the switching valve 86 is switched to the second state, and the supply pump 83 is driven. As shown by the dotted arrow in FIG. 7, the detergent and water in the detergent box 81 circulate among the detergent box 81, the detergent liquid supply pipe 82, and the circulation pipe 87. As a result, the detergent and water are mixed well. Therefore, even when the detergent is powder, it is unlikely that the detergent will dissolve and remain in the water. Next, the switching valve 86 is switched to the first state, and the supply pump 83 is driven. As shown by the solid arrow in FIG. 7, the detergent liquid in the detergent box 81 is supplied to the detergent nozzle 53.
  • the detergent liquid can be produced in the detergent box 81 satisfactorily.
  • the detergent nozzle 53 is arranged at the highest position of the peripheral edge portion 20 b, the water spray nozzle 52 is arranged on the left side of the detergent nozzle 53, and the steam nozzle 51 is arranged on the left side of the water spray nozzle 52.
  • these steam nozzles 51, water spray nozzles 52, and detergent nozzles 53 are arranged side by side on the upper part of the peripheral portion 20b of the opening 20a of the outer cylinder 20, they can be arranged at any position, regardless of the arrangement.
  • the order configuration is all right.
  • the detergent nozzle 53 is arranged at the highest position of the peripheral edge portion 20b as in the above-mentioned embodiment, the detergent liquid is uniformly spread to the left and right of the drum 23 and is easily attached to clothes uniformly, which is ideal.
  • the structure of the steam supply part 60, the water supply part 70, and the detergent supply part 80 is not limited to the structure of the said embodiment.
  • the steam supply unit 60 may also have a structure that does not have the water supply pipe 63 and the first water supply valve 64 and manually replenishes water into the steam tank 65 of the steam generator 61 by the user.
  • the water supply unit 70 may adopt a structure in which, in addition to water from a faucet, or instead of water from a faucet, the bath water pumped by a bath water pump from a bathtub may be supplied to the spray nozzle 52.
  • the detergent supply unit 80 may not have the water supply pipe 84 and the third water supply valve 85 and the user may replenish the detergent liquid generated from the outside into the detergent box 81.
  • the drum washing machine 1 adopts a structure in which the drum 23 rotates around a horizontal axis.
  • the drum washing machine 1 may also adopt a structure in which the drum 23 rotates around a rotation axis inclined with respect to the horizontal direction.
  • drum washing machine 1 of the above-mentioned embodiment does not have a drying function
  • the present invention is also applicable to drum washing machines with a drying function, that is, a drum washer-dryer.

Abstract

本发明提供一种能良好地进行利用了蒸汽的洗衣的滚筒洗衣机。滚筒洗衣机(1)具备：配置于箱体(10)内的外筒(20)、配置于外筒(20)内并可绕水平轴旋转的滚筒(23)、向滚筒(23)的内部喷射高压蒸汽的蒸汽喷嘴(51)、向蒸汽喷嘴(51)供给高压蒸汽的蒸汽供给部(60)、向滚筒(23)的内部喷射洗涤剂液的洗涤剂喷嘴(53)、向洗涤剂喷嘴(53)供给洗涤剂液的洗涤剂供给部(80)、向滚筒(23)的内部喷水的喷水嘴(52)以及向喷水嘴(52)供水的供水部(70)。

Description

滚筒洗衣机 技术领域
本发明涉及一种滚筒洗衣机。该滚筒洗衣机既可以连续地进行从洗涤到烘干，也可以进行洗涤但不进行烘干。
背景技术
以往，在滚筒洗衣机中，横轴型的滚筒在蓄水至规定水位的外筒内旋转，洗涤物被设置于滚筒内的提升筋翻滚并被拍打到滚筒的内周面，由此洗涤物被洗涤。这时，蓄在外筒内的水浸透至洗涤物的内部，整个内部被湿润。
以下的专利文献1中，记载了一种滚筒洗衣机，由蒸汽产生装置产生的蒸汽被喷向滚筒内，使得洗涤物被迅速湿润。
衣物中，存在一些并不希望水浸透至其内部的衣物。例如，在羽绒服中，由于在聚酯等外表面材料和内表面材料之间填充有羽毛，因此如果水浸透至其内部则羽毛整体会被湿润，羽毛变硬而蓬松感容易受损。因此，对由现有的滚筒洗衣机实现的洗涤方法而言，难以良好地进行这样的洗衣。
此外，在对表面或靠近表面处附着有污垢的衣物进行洗涤的情况下，为了去除该污垢，水只要遍布到至少靠近表面处即可，水可以不遍布至整个内部。但是，在对这样的洗衣使用现有的洗涤方法的情况下，容易使用超出必要的水量，造成水的浪费。
因此，为了进行像以往那样以不在外筒内蓄水的方式洗掉附着在衣物的表面或靠近表面处的污垢的洗涤，可以考虑利用蒸汽。
如上所述，在专利文献1的滚筒洗衣机中具备蒸汽产生装置。但是，在该滚筒洗衣机中，蒸汽的喷射用于将衣物迅速湿润，由蒸汽产生装置产生的蒸汽的压力比大气压低。因此，喷射出的蒸汽打到衣物上的威力弱，难以对衣物赋予机械力。因此，在上述的滚筒洗衣机中，难以通过喷射出的蒸汽来发挥去掉附着在衣物的表面或靠近表面处的污垢的清洗力。
现有技术文献
专利文献
专利文献1：日本特开2004－298614号公报
发明内容
发明所要解决的问题
本发明是鉴于这样的问题而完成的，其目的在于提供一种滚筒洗衣机，其能良好地进行利用了蒸汽的洗衣。
用于解决问题的方案
本发明的主要方案的滚筒洗衣机具备：外筒，配置于箱体内；滚筒，配置于所述外筒内，可绕水平轴或相对于水平方向倾斜的旋转轴进行旋转；蒸汽喷嘴，向所述滚筒的内部喷射高压蒸汽；蒸汽供给部，向所述蒸汽喷嘴供给高压蒸汽；洗涤剂喷嘴，向所述滚筒的内部喷射洗涤剂液；洗涤剂供给部，向所述洗涤剂喷嘴供给洗涤剂液；喷水嘴，向所述滚筒的内部喷水；以及供水部，向所述喷水嘴供水。
根据上述的结构，由于从蒸汽喷嘴向滚筒的内部喷射高压蒸汽，因此，能向滚筒内的衣物强势地吹拂蒸汽。由此，不仅能对滚筒内的衣物赋予由蒸汽的热量和水分产生的使污垢脱离的力，还能赋予由蒸汽的吹拂产生的机械力，因此能良好地剥离附着在衣物的表面、表面附近的污垢。
此外，由于从洗涤剂喷嘴向滚筒的内部喷射洗涤剂液，因此，能使滚筒内的衣物的表面、表面附近含有洗涤剂。由此，能通过因蒸汽的热量而活性化的洗涤剂的作用，将衣物的污垢更好地剥离。
进而，由于从喷水嘴向滚筒的内部喷水，因此，能使滚筒内的衣物的表面、表面附近含有水。由此，能容易地用水使洗涤剂液扩散而广泛地遍布至衣物，能容易地使从衣物剥离的污垢被水冲走从而从衣物中去除污垢。
本方案的滚筒洗衣机中，可以采用如下结构：所述滚筒具有开口部，所述外筒在所述滚筒的开口部的前方具有开口部，在所述外筒的开口部的周缘部的 上部排列配置有所述蒸汽喷嘴、所述洗涤剂喷嘴以及所述喷水嘴，从所述滚筒的开口部向所述滚筒的内部分别喷射高压蒸汽、洗涤剂液以及水。
根据上述的结构，能以滚筒内的中心附近为目标，从蒸汽喷嘴、洗涤剂喷嘴以及喷水嘴以不影响其他喷嘴的方式分别喷射高压蒸汽、洗涤剂液以及水。此外，即使在滚筒的底部衣物呈团块状团在一起，也能使高压蒸汽、洗涤剂液以及水以不受该团块状的衣物影响的方式前往滚筒内的里侧的空间。
本方案的滚筒洗衣机中，可以采用如下结构：还具备设置于所述滚筒的内周面并沿所述滚筒的轴线方向延伸的中空的提升筋，在所述提升筋的端面，设置有用于将从所述蒸汽喷嘴喷射的高压蒸汽的至少一部分向内部摄入的摄入口，在所述提升筋的侧面，设置有多个用于将从所述摄入口摄入至内部的蒸汽放出的放出孔。
根据上述的结构，即使是在滚筒内塞入了大量衣物的状态下，也能使蒸汽经过提升筋与位于滚筒里侧的衣物的表面接触，能利用蒸汽将附着在这些衣物的表面、表面附近的污垢去除。
发明效果
根据本发明，能提供一种滚筒洗衣机，其能良好地进行利用了蒸汽的洗衣。
本发明效果或意义通过以下所示的实施方式的说明会更加明确。但是，以下的实施方式只不过是将本发明实施化时的一个示例，本发明不受以下的实施方式所述的任何限制。
附图说明
图1是表示实施方式的滚筒洗衣机的结构的侧剖图。
图2的(a)是表示实施方式的外筒中的蒸汽喷嘴、喷水嘴以及洗涤剂喷嘴的配置结构的主要部分的正面剖视图。图2的(b)是表示实施方式的蒸汽喷嘴的结构的剖视图，图2的(c)是表示实施方式的喷水嘴和洗涤剂喷嘴的结构的剖视图。
图3是表示实施方式的滚筒洗衣机的结构的框图。
图4是表示实施方式的蒸汽洗涤模式的洗涤运转的控制处理的流程图。
图5的(a)和(b)分别表示包含在实施方式的蒸汽洗涤模式的洗涤运转中的蒸汽清洗过程和蒸汽漂洗过程的控制处理的流程图。
图6的(a)是在变形例1的蒸汽喷嘴的位置剖开的外筒和滚筒的主要部分的剖视图，图6的(b)和(c)分别是变形例1的提升筋的主视图和正面剖视图。
图7是表示变形例2的洗涤剂供给部的结构的图。
附图标记说明：
10：箱体；20：外筒；20a：开口部；20b：周缘部；23：滚筒；23a：开口部；51：蒸汽喷嘴；52：喷水嘴；53：洗涤剂喷嘴；60：蒸汽供给部；70：供水部；80：洗涤剂供给部；300：提升筋；300a：前端面；300b：侧面；301：摄入口；302：放出孔。
具体实施方式
以下，参照附图，对作为本发明的滚筒洗衣机的一实施方式的、不具有烘干功能的滚筒洗衣机进行说明。
图1是表示滚筒洗衣机1的结构的侧剖图。图2的(a)是表示外筒20的蒸汽喷嘴51、喷水嘴52以及洗涤剂喷嘴53的配置结构的主要部分的正面剖视图。图2的(b)是表示蒸汽喷嘴51的结构的剖视图，图2的(c)是表示喷水嘴52和洗涤剂喷嘴53的结构的剖视图。
滚筒洗衣机1具备方形的箱体10。在箱体10的前表面，在中央部形成有投入洗涤物的圆形的投入口11。投入口11由自由开闭的门12覆盖。
在箱体10内，外筒20由多个减振器21和弹簧22弹性支承。在外筒20内，自由旋转地配置有滚筒23。滚筒23绕水平轴旋转。滚筒23在前表面具有圆形的开口部23a，外筒20在滚筒23的开口部23a的前方具有圆形的开口部20a。外筒20的开口部20a与投入口11对置，与投入口11一起由门12关闭。外筒20的开口部20a的周缘部20b和箱体10的投入口11的周缘部11a通过由弹性 材料构成的环状的衬垫24而被连结。
在滚筒23的内周面形成有许多脱水孔23b。此外，在滚筒23的内周面，在开口部23a的附近设置有环状的平衡器25，并且沿周向以相等的间隔设置有三个提升筋26。各个提升筋26具有近似三棱柱形状，沿滚筒23的轴线方向延伸，内部呈中空。
在外筒20的后方配置有产生驱动滚筒23的转矩的驱动马达30。驱动马达30例如为外转子型的DC无刷马达。在清洗过程和漂洗过程时，驱动马达30以使施加给滚筒23内的洗涤物的离心力比重力小的转速使滚筒23旋转。另一方面，在脱水过程时，驱动马达30以使施加给滚筒23内的洗涤物的离心力远远大于重力的转速使滚筒23旋转。
在外筒20的底部形成有排水口部20c。在排水口部20c设置有排水阀40。排水阀40与排水软管41连接。当排水阀40打开时，蓄在外筒20内的水通过排水软管41排出到机外。
在外筒20，在开口部20a的周缘部20b的上部排列配置有蒸汽喷嘴51、喷水嘴52以及洗涤剂喷嘴53。如图2的(a)所示，洗涤剂喷嘴53配置于周缘部20b的最高位置，喷水嘴52配置于洗涤剂喷嘴53的左邻，蒸汽喷嘴51配置于喷水嘴52的左邻。蒸汽喷嘴51、喷水嘴52以及洗涤剂喷嘴53分别向滚筒23的内部喷射高压蒸汽、水以及洗涤剂液。
如图2的(b)所示，蒸汽喷嘴51由中间部分呈钝角弯曲的细长圆筒状的管体100组成。管体100例如弯曲角度设为120度左右，内径设为6mm左右。管体100的基端部的开口为流入口100a，管体100的顶端部的开口为喷射口100b。
喷水嘴52和洗涤剂喷嘴53具有相同的构造。如图2的(c)所示，喷水嘴52和洗涤剂喷嘴53由与蒸汽喷嘴51相同的管体100和装接于管体100的顶端部的开口的喷嘴体110组成。喷嘴体110以喷洒图案为圆形且形成均等的流量分布的充圆锥的方式，从喷射口111雾状地喷射液体，即进行喷雾。喷嘴体110的内径例如设为1mm左右。
如图2的(a)所示，蒸汽喷嘴51、喷水嘴52以及洗涤剂喷嘴53的基端部位于外筒20的外部，顶端部侧贯通周缘部20b并以朝向开口部20a的中心的方 式向外筒20的内部突出。而且，蒸汽喷嘴51、喷水嘴52以及洗涤剂喷嘴53的喷射口100b、111朝向滚筒23的中心附近。
在箱体10内具备：向蒸汽喷嘴51供给高温高压蒸汽的蒸汽供给部60、向喷水嘴52供水的供水部70以及向洗涤剂喷嘴53供给洗涤剂液的洗涤剂供给部80。
蒸汽供给部60包括：生成高温高压蒸汽的蒸汽生成装置61、将由蒸汽生成装置61生成的蒸汽导向蒸汽喷嘴51的蒸汽供给管62、以及用于向蒸汽生成装置61供水的供水管63和第一供水阀64。蒸汽生成装置61具备蒸汽箱65、配置于蒸汽箱(Boiler Tank)65内的加热器66以及对设置于蒸汽箱65的蒸汽出口65a进行开闭的供给阀67。蒸汽供给管62的一端与供给阀67连接，另一端与蒸汽喷嘴51的流入口100a连接。供水管63的一端与设置于蒸汽箱65的供水口65b连接，另一端与第一供水阀64连接。第一供水阀64具有与后述的第二供水阀和第三供水阀共用的供水口S1。在供水口S1连接有从水龙头延伸出的供水软管。
当第一供水阀64打开时，来自水龙头的水经过供水管63被供给至蒸汽箱65，蓄水至蒸汽箱65内。当蒸汽箱65内蓄有规定量的水时，关闭第一供水阀64。加热器66工作，蒸汽箱65内的水通过加热器66被加热。水沸腾而在蒸汽箱65内产生蒸汽。这时，供给阀67已关闭，蒸汽箱65内的蒸汽压随着蒸汽的产生而升高。这样，在蒸汽箱65内生成高温高压蒸汽。
当供给阀67打开时，高压蒸汽从蒸汽出口65a排出。在本实施方式的蒸汽生成装置61中，最大排出压力例如设为0.4MPa左右。从蒸汽出口65a排出的蒸汽经过蒸汽供给管62到达蒸汽喷嘴51，从蒸汽喷嘴51的喷射口100b经过开口部23a喷向滚筒23的内部。如图2的(a)所示，从蒸汽喷嘴51喷射的高温高压蒸汽一边扩散一边前往滚筒23的中心附近。
需要说明的是，蒸汽供给管62由未图示的隔热材料包覆，被送至蒸汽喷嘴51的蒸汽容易保持高温状态。
供水部70包括供水管71和第二供水阀72。供水管71的一端与第二供水阀72连接，另一端与喷水嘴52的流入口100a连接。
当第二供水阀72打开时，来自水龙头的水经过供水管71到达喷水嘴52，从喷水嘴52的喷嘴体110的喷射口111经过开口部23a向滚筒23的内部喷雾。如图2的(a)所示，从喷水嘴52喷雾出的水一边扩散一边前往滚筒23的中心附近。
洗涤剂供给部80包括：生成并蓄积洗涤剂液的洗涤剂盒81、用于将洗涤剂盒81内的洗涤剂液导向洗涤剂喷嘴53的洗涤剂液供给管82和供给泵83、以及用于向洗涤剂盒81供水的供水管84和第三供水阀85。洗涤剂液供给管82的一端与设置于洗涤剂盒81的排水口81a连接，另一端与洗涤剂喷嘴53的流入口100a连接。供给泵83设置于洗涤剂液供给管82的中途。供水管84的一端与设置于洗涤剂盒81的供水口81b连接，另一端与第三供水阀85连接。
粉末或液体洗涤剂从设置于洗涤剂盒81的顶面的未图示的投入口投入洗涤剂盒81内。当第三供水阀85打开时，经过供水管84向洗涤剂盒81内供给规定量的水。水和洗涤剂在洗涤剂盒81内混合而生成洗涤剂液。当供给泵83工作时，洗涤剂盒81内的洗涤剂液经过洗涤剂液供给管82被送至洗涤剂喷嘴53。到达洗涤剂喷嘴53的洗涤剂液从洗涤剂喷嘴53的喷嘴体110的喷射口111经过开口部23a向滚筒23的内部喷雾。如图2的(a)所示，从洗涤剂喷嘴53喷雾出的洗涤剂液一边扩散一边前往滚筒23的中心附近。
图3是表示滚筒洗衣机1的结构的框图。
除了上述的结构之外，滚筒洗衣机1还具备：控制部201、存储部202、操作部203、水位传感器204、温度传感器205、马达驱动部206、供水驱动部207、排水驱动部208、加热器驱动部209、阀驱动部210以及泵驱动部211。
操作部203包括：电源按钮203a、开始按钮203b、以及模式选择按钮203c。电源按钮203a是用于接通和切断滚筒洗衣机1的电源的按钮。开始按钮203b是用于使运转开始的按钮。模式选择按钮203c是用于从洗涤运转的多个洗涤模式中选择任意的洗涤模式的按钮。操作部203将与用户所操作的按钮对应的输入信号输出给控制部201。
水位传感器204检测外筒20内的水位，将与检测到的水位对应的水位信号输出给控制部201。温度传感器205检测外筒20内的温度，并将与检测到的温 度对应的温度信号输出给控制部201。
马达驱动部206根据来自控制部201的控制信号，对驱动马达30进行驱动。马达驱动部206包括检测驱动马达30的转速的旋转传感器、逆变电路等，对驱动电力进行调整以使驱动马达30以由控制部201设定的转速进行旋转。
供水驱动部207根据来自控制部201的控制信号，对第一供水阀64、第二供水阀72以及第三供水阀85进行驱动。排水驱动部208根据来自控制部201的控制信号，对排水阀40进行驱动。
加热器驱动部209根据来自控制部201的控制信号，对加热器66进行驱动。阀驱动部210根据来自控制部201的控制信号，对供给阀67进行驱动。
泵驱动部211根据来自控制部201的控制信号，对供给泵83进行驱动。
存储部202包括EEPROM、RAM等。存储部202存储有用于执行各种洗涤模式的洗涤运转的程序。此外，存储部202存储有用于执行这些程序的各种参数、各种控制标记。
控制部201基于来自操作部203、水位传感器204、温度传感器205等的各个信号，根据存储于存储部202的程序，对马达驱动部206、供水驱动部207、排水驱动部208、加热器驱动部209、阀驱动部210、以及泵驱动部211等进行控制。其结果是，在后述的蒸汽洗涤模式的洗涤运转中，控制部201对蒸汽供给部60、供水部70、洗涤剂供给部80以及驱动马达30的工作进行控制。
进而，滚筒洗衣机1基于用户对操作部203的操作，进行各种洗涤模式的洗涤运转。
洗涤模式中包括标准洗涤模式。标准洗涤模式下，在清洗过程中，向外筒20内蓄积含有洗涤剂的水至与滚筒23内的衣物的负荷量对应的规定水位，浸渍在该水中的衣物通过反复进行滚筒23的正旋转和逆旋转而翻滚。含有洗涤剂的水浸透至衣物的内部，通过洗涤剂的力和翻滚产生的机械力去掉附着于衣物的表面、内部的污垢。
需要说明的是，向外筒20内蓄积含有洗涤剂的水时，洗涤剂液和水分别从洗涤剂喷嘴53和喷水嘴52喷射。因此，在供水时，洗涤剂液和水容易触及衣 物，因此，当外筒20内的水位达到规定水位时，容易成为含有洗涤剂的水浸透衣物的内部整体的状态。
清洗过程之后，一次进行中间脱水过程、漂洗过程以及最终脱水过程。在漂洗过程中，滚筒23也在外筒20内蓄水至规定水位的状态下正旋转和逆旋转，使衣物翻滚。
洗涤模式中除了标准洗涤模式之外，还包括蒸汽洗涤模式。蒸汽洗涤模式是如下所述的洗涤模式：以不向外筒20内蓄水至规定水位的方式，通过蒸汽对羽绒服等不希望整个内部被湿润的衣物或者表面、表面附近附着有污垢的衣物进行洗涤。
以下，对蒸汽洗涤模式的洗涤运转进行详细说明。
图4是表示蒸汽洗涤模式的洗涤运转的控制处理的流程图。图5的(a)和(b)分别表示包含在蒸汽洗涤模式的洗涤运转中的蒸汽清洗过程和蒸汽漂洗过程的控制处理的流程图。
当通过模式选择按钮203c选择蒸汽洗涤模式之后按下开始按钮203b时，蒸汽洗涤模式的洗涤运转开始。需要说明的是，在洗涤运转开始之前，将羽绒服等衣物投入滚筒23内，并且将洗涤剂投入洗涤剂盒81内。
参照图4，当洗涤运转开始时，控制部201首先进行准备过程(S1)。即，控制部201对蒸汽供给部60的第一供水阀64和加热器66进行控制，在蒸汽箱65内生成高温高压蒸汽。此外，控制部201对洗涤剂供给部80的第三供水阀85进行控制，在洗涤剂盒81内生成洗涤剂液。当高压蒸汽和洗涤剂液的生成完成时，准备过程结束。
需要说明的是，通过第一供水阀64和加热器66的控制而实现的蒸汽生成装置61中的蒸汽的生成一直持续到蒸汽漂洗过程结束而移行至最终脱水过程为止。即，当蒸汽箱65内的蒸汽量减少时加热器66工作，当蒸汽箱65内的水减少时，则打开第一供水阀64。
接着，控制部201进行蒸汽清洗过程(S2)。
参照图5的(a)，在蒸汽清洗过程中，控制部201首先进行洗涤剂液喷射 过程(S101)。即，控制部201使洗涤剂供给部80的供给泵83工作。由此，洗涤剂液被供给至洗涤剂喷嘴53，从洗涤剂喷嘴53向滚筒23的内部进行洗涤剂液的喷雾。洗涤剂液的喷雾量例如设定为0.5L/分钟。在进行洗涤剂液的喷雾的同时，控制部201使驱动马达30伴有停止地向正方向和反方向交替旋转。滚筒23伴有停止地反复进行正旋转和逆旋转，滚筒23内的衣物被搅拌。滚筒23的转速例如设为30rpm，比标准洗涤模式的清洗过程中的滚筒23的转速低。因此，衣物被轻轻搅拌。喷雾出的洗涤剂液无死角地触及衣物的表面，洗涤剂液遍布表面、表面附近的大部分。洗涤剂液喷射过程进行事先设定的洗涤剂供给时间，例如1分钟。当经过洗涤剂供给时间时，控制部201使供给泵83停止。
接着，控制部201进行喷水过程(S102)。即，控制部201打开供水部70的第二供水阀72。由此，水被供给至喷水嘴52，从喷水嘴52向滚筒23的内部进行水的喷雾。水的喷雾量例如设为1L/分钟。这时，继续保持通过滚筒23的正逆旋转动作而实现的衣物的搅拌。喷雾出的水无死角地触及衣物的表面，衣物中所含的洗涤剂液通过该水而扩散，洗涤剂液遍布至比衣物的表面、表面附近更广的部分。
喷水过程进行事先设定的第一供水时间，例如5秒钟。当经过第一供水时间时，控制部201关闭第二供水阀72。
接着，控制部201进行蒸汽喷射过程(S103)。即，控制部201打开蒸汽供给部60的供给阀67。由此，高温高压蒸汽被供给至蒸汽喷嘴51，从蒸汽喷嘴51向滚筒23的内部喷射高温高压蒸汽。蒸汽的喷射量例如设为约80g/分钟。这时，继续保持通过滚筒23的正逆旋转动作而实现的衣物的搅拌。蒸汽被强势且无死角地吹拂至衣物的表面，通过由蒸汽的热量和水分产生的使污垢脱离的力、由蒸汽的吹拂而产生的机械力，剥离附着在衣物的表面、表面附近的污垢。此外，通过蒸汽的热量，衣物中所含的洗涤剂液的温度上升而使洗涤剂活性化，加上活性化的洗涤剂的作用，助长了污垢的剥离。
蒸汽喷射过程进行事先设定的蒸汽供给时间，例如2分钟。当经过蒸汽供给时间时，控制部201关闭供给阀67。
接着，控制部201进行第二供水时间的喷水过程，第二供水时间比第一供水时间长，例如为1分钟(S104)。从喷水嘴52喷雾出的水无死角地触及衣物 的表面，从衣物中剥离的污垢被触及的水冲掉而离开衣物。由此，污垢不容易再次附着到衣物上。此外，当衣物被搅拌时，衣物会被作用按压向滚筒23的内周面的力，因此通过该压洗效果，含有污垢的水变得容易从衣物排出，衣物的去污效果提高。进而，由于衣物通过喷雾出的水而被冷却，因此衣物的温度不容易过度上升，能防止热量带给衣物的损伤。
然后，控制部201使S103的蒸汽喷射过程和S104的喷水过程反复进行第一次数，例如三次。这样，通过反复进行蒸汽喷射过程和喷水过程，能缩短每次蒸汽喷射过程的时间。由此，在蒸汽喷射过程期间，衣物的温度不容易过度上升，能防止热量带给衣物的损伤。
当蒸汽喷射过程和喷水过程反复进行了第一次数时(S105：是)，控制部201进行搅拌过程(S106)。即，控制部201使滚筒23的正逆旋转动作持续事先设定的搅拌时间，例如1分钟，通过压洗效果，从衣物中排出更多的含有污垢的水。然后，当搅拌过程结束时，控制部201使驱动马达30停止使滚筒23停止。
接着，控制部201进行排水过程(S107)。即，控制部201打开排水阀40。由此，从外筒20内排水。当排水过程结束时，控制部201在保持排水阀40打开的状态下结束蒸汽清洗过程。
返回图4，当蒸汽清洗过程结束时，控制部201进行中间脱水过程(S3)。即，控制部201对驱动马达30进行驱动，使滚筒23以规定的脱水转速单向高速旋转。衣物通过离心力的作用被按向滚筒23内周面，从而脱水。
需要说明的是，蒸汽洗涤模式的中间脱水过程中的脱水转速设为例如400rpm，比标准洗涤模式下的中间脱水过程中的脱水转速低。由此，即使洗涤物是纤弱的衣物，也不容易损伤布料。此外，蒸汽洗涤模式下，在中间脱水过程之前，衣物中所含的水分与标准洗涤模式相比较少，因此即使脱水转速低也能适度地进行脱水。
达到脱水转速之后，当经过规定的脱水时间例如1分钟时，控制部201使驱动马达30停止而使滚筒23停止。进而，控制部201关闭排水阀40。这样，中间脱水过程结束。
接着，控制部201进行蒸汽漂洗过程(S4)。
参照图5的(b)，在蒸汽漂洗过程中，控制部201首先使喷水过程进行第三供水时间，第三供水时间比第二供水时间长，例如为2分钟(S201)。从喷水嘴52喷雾出的水无死角地触及衣物的表面，衣物中所含的洗涤剂被触及的水冲掉而从衣物中去除。此外，当衣物被搅拌时，衣物会被作用按压向滚筒23的内周面的力，因此含有洗涤剂的水变得容易从衣物排出，衣物的漂洗效果提高。
接着，控制部201使蒸汽喷射过程进行蒸汽供给时间(S202)。通过蒸汽的热量使得衣物的温度上升，从而残留在衣物中的洗涤剂变得容易溶于水中，容易随着水一起被去除。
然后，控制部201使S201的喷水过程和S202的蒸汽喷射过程反复进行第二次数，例如两次，当上述过程结束时(S203：是)，进行排水过程(S204)。当排水过程结束时，蒸汽漂洗过程结束。
返回图4，控制部201反复进行两次S3的中间脱水过程和S4的蒸汽漂洗过程，当上述过程结束时(S5：是)，进行最终脱水过程(S6)。最终脱水过程中，进行比中间脱水过程时间长的脱水。最终脱水过程中的脱水转速既可以与中间脱水过程的脱水转速相同，也可以比中间脱水过程的脱水转速高。
当最终脱水过程结束时，蒸汽洗涤模式的洗涤运转结束。
＜实施方式的效果＞
根据本实施方式，由于从蒸汽喷嘴51向滚筒23的内部喷射高压蒸汽，因此，能向滚筒23内的衣物强势地吹拂蒸汽。由此，不仅能对滚筒23内的衣物赋予由蒸汽的热量和水分产生的使污垢脱离的力，还能赋予由蒸汽的吹拂产生的机械力，因此，能良好地剥离附着在衣物的表面、表面附近的污垢。
此外，由于从洗涤剂喷嘴53向滚筒23的内部喷射洗涤剂液，因此，能使滚筒23内的衣物的表面、表面附近含有洗涤剂。由此，能通过因蒸汽的热量而活性化的洗涤剂的作用，将衣物的污垢更好地剥离。
进而，由于从喷水嘴52向滚筒23的内部喷水，因此，能使滚筒23内的衣物的表面、表面附近含有水。由此，能容易地用水将洗涤剂液散开而广泛地遍 布至衣物，能容易地使从衣物剥离的污垢被水冲走从而从衣物中去除污垢。
因此，根据本实施方式，能良好地进行利用了蒸汽的洗衣。
此外，根据本实施方式，蒸汽喷嘴51、洗涤剂喷嘴53以及喷水嘴52排列配置于外筒20的开口部20a的周缘部20b的上部。由此，能以滚筒23内的中心附近为目标，从蒸汽喷嘴51、洗涤剂喷嘴53以及喷水嘴52分别以不影响其他喷嘴的方式喷射高压蒸汽、洗涤剂液以及水。此外，即使在滚筒23的底部衣物呈团块状团在一起，也能使高压蒸汽、洗涤剂液以及水以不影响该团块状的衣物的方式前往滚筒23内的里侧的空间。
以上，对本发明的实施方式进行了说明，但是本发明不受上述实施方式等的任何限制，此外，本发明的实施方式也可以进行上述以外的各种变形。
＜变形例1＞
图6的(a)是在变形例1的蒸汽喷嘴51的位置剖开的外筒20和滚筒23的主要部分的剖视图，图6的(b)和(c)分别是变形例1的提升筋300的主视图和正面剖视图。
在滚筒23的内周面，沿滚筒23的轴线方向延伸且内部为中空的三个提升筋300以具有均等间隔的方式设置。在各个提升筋300的前端面300a，形成有与提升筋300的内部相连的圆形的摄入口301。此外，在各个提升筋300的侧面300b，遍及整体地形成有多个圆形的放出孔302。
如图6的(a)所示，在蒸汽喷射过程中，在从蒸汽喷嘴51喷射高温高压的蒸汽时，当各个提升筋300通过滚筒23的旋转而经过蒸汽喷嘴51的前方时，喷射出的蒸汽的至少一部分从摄入口301被摄入到滚筒23的内部(参照图2的(a)的单点划线)。摄入的蒸汽从多个放出孔302放出到提升筋300的外部(参照图2的(a)的箭头)。由此，即使是在滚筒23内塞入了大量衣物的状态下，也能通过提升筋300使蒸汽与位于滚筒23的里侧的衣物的表面接触。
因此，根据本变形例的结构，即使是在滚筒23内塞入了大量衣物的状态下，也能通过蒸汽将附着在位于滚筒23的里侧的衣物的表面、表面附近的污垢去除。
＜变形例2＞
图7是表示变形例2的洗涤剂供给部80的结构的图。
本变形例中，洗涤剂供给部80包括切换阀86和环流管87。切换阀86设置于洗涤剂液供给管82中的供给泵83的下游。环流管87的一端与切换阀86连接，另一端与设置于洗涤剂盒81的顶面的返回口81c连接。切换阀86将从供给泵83排出的洗涤剂液切换为流向洗涤剂喷嘴53的第一状态和流向环流管87侧的第二状态。切换阀86由控制部201切换。
当向洗涤剂盒81内投入洗涤剂并蓄水时，首先，切换阀86被切换为第二状态，供给泵83被驱动。如图7的虚线箭头所示，洗涤剂盒81内的洗涤剂和水在洗涤剂盒81、洗涤剂液供给管82、环流管87之间循环。由此，洗涤剂和水很好地混合，因此，即使在洗涤剂为粉末的情况下，也不容易发生洗涤剂溶解残留在水中的情况下。接着，切换阀86被切换为第一状态，供给泵83被驱动。如图7的实线箭头所示，洗涤剂盒81内的洗涤剂液被供给至洗涤剂喷嘴53。
如此一来，在本变形例中，能在洗涤剂盒81内良好地生成洗涤剂液。
＜其他变形例＞
上述实施方式中，洗涤剂喷嘴53配置于周缘部20b的最高位置，在洗涤剂喷嘴53的左邻配置有喷水嘴52，在喷水嘴52的左邻配置有蒸汽喷嘴51。但是，只要这些蒸汽喷嘴51、喷水嘴52以及洗涤剂喷嘴53以并排的方式配置于外筒20的开口部20a的周缘部20b的上部，配置在什么位置都可以，无论以什么样的排列顺序配置都可以。但是，如果像上述实施方式那样将洗涤剂喷嘴53配置在周缘部20b的最高位置，则洗涤剂液被均匀地扩散至滚筒23的左右，容易均匀地附在衣物上，因此最为理想。
此外，蒸汽供给部60、供水部70以及洗涤剂供给部80的结构不局限于上述实施方式的结构。例如，蒸汽供给部60也可以采用不具有供水管63和第一供水阀64而通过用户手动向蒸汽生成装置61的蒸汽箱65内补水的结构。此外，例如，供水部70也可以采用除了来自水龙头的水之外，或者取代来自水龙头的水，将由洗澡水泵从浴缸汲取的洗澡水供给至喷水嘴52的结构。进而，例如，洗涤剂供给部80也可以采用不具有供水管84和第三供水阀85而由用户将外部生成的洗涤剂液补给至洗涤剂盒81内的结构。
进而，上述实施方式中，滚筒洗衣机1采用了滚筒23绕水平轴旋转的结构。但是，滚筒洗衣机1也可以采用滚筒23绕相对于水平方向倾斜的旋转轴旋转的结构。
进而，虽然上述实施方式的滚筒洗衣机1不具备烘干功能，但是本发明也适用于具备烘干功能的滚筒洗衣机，即滚筒式洗干一体机。
除此之外，本发明的实施方式可以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. 一种滚筒洗衣机，其特征在于，具备：
    外筒，配置于箱体内；
    滚筒，配置于所述外筒内，可绕水平轴或相对于水平方向倾斜的旋转轴进行旋转；
    蒸汽喷嘴，向所述滚筒的内部喷射高压蒸汽；
    蒸汽供给部，向所述蒸汽喷嘴供给高压蒸汽；
    洗涤剂喷嘴，向所述滚筒的内部喷射洗涤剂液；
    洗涤剂供给部，向所述洗涤剂喷嘴供给洗涤剂液；
    喷水嘴，向所述滚筒的内部喷水；以及
    供水部，向所述喷水嘴供水。
  2. 根据权利要求1所述的滚筒洗衣机，其特征在于，
    所述滚筒具有开口部，
    所述外筒在所述滚筒的开口部的前方具有开口部，
    所述蒸汽喷嘴、所述洗涤剂喷嘴以及所述喷水嘴排列配置于所述外筒的开口部的周缘部的上部，从所述滚筒的开口部向所述滚筒的内部分别喷射高压蒸汽、洗涤剂液以及水。
  3. 根据权利要求1或2所述的滚筒洗衣机，其特征在于，
    还具备设置于所述滚筒的内周面并沿所述滚筒的轴线方向延伸的中空的提升筋，
    在所述提升筋的端面，设置有用于将从所述蒸汽喷嘴喷射的高压蒸汽向内部摄入的摄入口，
    在所述提升筋的侧面，设置有多个用于将从所述摄入口摄入至内部的蒸汽放出的放出孔。
PCT/CN2020/076979 2019-04-23 2020-02-27 滚筒洗衣机 WO2020215889A1 (zh)

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